europa_simp.pic (pics format) Global mosaic Simple Cylindrical
europa_simp.raw (raw file - no labels) Global mosaic Simple Cylindrical
europa_sinu.pic (pics format) Global mosaic Sinusoidal
europa_sinu.raw (raw file - no labels) Global mosaic Sinusoidal
eur_hi_orth.pic (pics format) High Resolution Mosaic - Orth projection
eur_hi_orth.raw (raw file - no labels) High Resolution Mosaic - Orth projection
eur_hi_simp.pic (pics format) High Resolution Mosaic - Simp projection
eur_hi_simp.raw (raw file - no labels) High Resolution Mosaic - Simp projection
eur_g1_grid.pic (pics format) G1 observation of Europa - Orthographic with lat/lon grid
eur_g1_grid.raw (raw file - no labels) G1 observation of Europa - Orthographic with lat/lon grid
eur1h.vic first 3 Europa frames mosaicked
Europa-RED-GRN-VIO.jpg visible and infrared Europa color images
Europa-968-889-756.jpg visible and infrared Europa color images
europa.mos_flt_st Europa 2 X 2 mosaic with a high pass filter applied
eurfilt.vic Europa 4-image controlled mosaic with filters to enhance detail.
europa.red color-ratio composite merged with filtered red image
europa.grn
europa.blu
g1dlr_europa_color_1.red color VICAR image of Europa
g1dlr_europa_color_1.grn for Category B release
g1dlr_europa_color_1.blu
g1dlr_europa_color_1.txt possible Cat.-B Text caption
europa_full_756-grn-vio.jpg color jpg image of Europa (Geissler)
europa_full_968-756-vio.jpg color jpg image of Europa (Geissler)
g1dlr_euro_col_2*.* proposed category B release
g1dlr_euro_col_3.* color frame of Europa
g1dlr_euro_col_4.* color frame of Europa
europa_voy_stereogrid.vic stereographic europa projections of voyager
europamos_stereogrid.vic same with Galileo frames added in
g2dlr_euro_prelim3.* Europa G2 color frame
g2dlr_euro_prelim.red, grn, and blu Europa G2 color frame(outdated)
europa_G2.jpg reconstructed version of the Europa G2 color image
g2dlr_europa_color.red, grn, blu Europa G2 "true" and false color composites
europa_voygal.sinu* global mosaic w/ Voy and Gal G1 and G2 Europa coverage
c3brn_eur_sumstrip.vic superposition of the two high res C3 Europa framelets
c3brn_eur_im8strip.vic on G1 Europa and on Voyager respectively
c3jpl_eur_wedge1.bw galsosed and stretched versions of wedge images
c3jpl_eur_wedge2.bw
c3jpl_eur_wedge3.bw
eur_c3_mos.tif mosaic of C3 Europa with Voyager in background
eurcra.ps crater frequency plot
wedge.vic latest Europa wedge, filtered to remove noise and pixelation.
Step*.tif reconstructed wedge images
eur_35_context.vic;1 s0374685100 mosaicked within part of s0374667300
eur_35_context.vic;2 s0374685100 and s0374685139 mosaicked within part
of s0374667300
e4asu_eur_34m_cut.bw Europa, possible press releases
e4asu_eur_630m.bw
e4asu_eur_630m_cut.bw
e4jpl_eur_darkmaterial.bw Europa, possible press releases
e4jpl_eur_darkmaterial_mos.bw
e4jpl_eur_darkmaterial_mos_cut.bw
e4jpl_eur_macu_374667300_div.bw
e4jpl_eur_macu_374667300_hpf.bw
e4jpl_eur_macu_cut_374667300.bw
e4jpl_eur_macu_cut_374685139.bw
e4jpl_eur_macu_mos.bw
e4lpl_pwyll.vic Preliminary mosaic of 5 global Europa images
e4_hires.mos Preliminary mosaic of E4 highest resolution images
(version 4)
e4g2lpl_pwyll.vic merged E4 - G2 mosaic
e4lpl_pwyll_color.jpg colored version of e4lpl_pwyll
E4hiresmos_cp_1_rec_2.tif reconstruction of the broad lineament diagonally
E4hiresmos_cp_1.tif crossing the northern portion
e4lpl_pwyll2.vic mosaic of 5 global context frames, trailing hemisphere
e4g2g1lpl_pwyll.vic merged E4, G1, G2 mosaic
e4lpl_pwyll_color_final.jpg colored version of e4lpl_pwyll2
e6_drklin.vic updated 5-frame mosaic of Dark Linea
e6_crater.vic updated 2-frame mosaic of Crater
e6_brtpln.vic mosaic of the E6brtpln
e6_plains02_v1.vic E6 Europa high res mosaic of brtpln02
e6_crater02.vic mosaic of crater02
e6_craters.vic shows placement of crater02 within crater01 mosaic
e6_brtpln_v3.vic three out of the four frames are complete
e6_crater02_v3.vic all frames are complete
e6_drklin_v4.vic Mosaic of dark lineas from E6
e3wedges_vgr.vic C3 wedges image set into a reprojected Voyager frame
g2lpl_global_color.vic G2 Europa global color image, possible press release
e6lpl_drklin.vic Europa E6 DRKLIN mosaic
Tyre.vic G7 Tyre Macula color composite
e6lpl_colordrklin.tiff merged E6 drklin color image
airglow.vic comp. of G7 eclipse image w. comb. Galileo and Voyager albedo
G7ESECLIPS01.red .grn .blu false color of clear G7 eclipse
E6_SYNCOLOR_BLUE2.TIFF final vession of Science cover
01797icerafts.tif Europa E6 Ice Rafts in b/w
c9paul_g2tilmann_europa.vic comparison of 2 global Europa images
g7dlr_europafeatures_1.vic Features of Europa from G7 orbit
g7dlr_europafeatures_2.vic same as above
g7dlr_europafeatures_3.vic same as above
(NOTE: The above 4 color images cannot be displayed properly using XVD.
You need to use VIDS or Photoshop)
E6_EUROPA_BRTPLN2.VIC E6 Europa Bright Plains 2 Mosaic and context mosaic
E6_EUROPA_BRTPLN2_CXT.VIC
e4dlr_gem_targets.vic b/w compilation of eight Europan surface areas
e4dlr_gem_targets.tif e4dlr_gem_targets.vic w/ arrows added by Kadel
e11_brn_grayband.vic gray band in the new E11 Europa regional frames (s0420619252 and 9265)
e11lpl_colors01.vic E11 COLORS01 vicar image
e11lpl_colors02.vic E11 COLORS01 vicar image
colors01-756-grn-vio-edit2.jpg E11 COLORS01 3-color composite
colors01-968-grn-vio-edit2.jpg E11 COLORS01 3-color composite
colors02-756-grn-vio-edit2.jpg E11 COLORS02 3-color composite
colors02-968-grn-vio-edit2.jpg E11 COLORS02 3-color composite
E18DLR_GLL_FLYBY.TIFF DLR superposition of orbiter and Jupiter above Europa
E11_Europa_Hires.vic E11 preliminary Hi-resolution Europa mosaic
E11_Europa_Hires2.vic E11 Hi resolution Europa mosaic
E11_Europa_Hires2_L1copy.tif E11 Europa reconstruction
E11_Europa_Hires2_L3copy.tif E11 Europa reconstruction
756-grn-vio_s.jpg E12 Europa (Agenor color image)
968-grn-vio_s.jpg E12 Europa (Agenor color image)
968_on_grn.jpg E12 Europa color ratio
e12drklin.red preliminary E12 dark linearment (756 nm filter)
e12drklin.grn same in green filter
e12drklin.blu same in violet flter
dlr_e11regmap.mos Mercator mosaic of 11ESREGMAP01 (vicar)
e11LPL_regmap.vic E11 regmap mosaic
e11LPL_regmap_cxt.vic Context image of the above
Chaos_stereo.tif Preliminary E12 Conamara Chaos mosaic
e12_e6_prelim1.readme E12/E6 high res mosaic
e12_e6_prelim1.vic
dlr_e12chaos_stereo1.pict three preliminary stereo products of 12ESCHAOS01
dlr_e12chaos_dtm1.hlf
dlr_e12chaos_ortho1.byt
e12_wedge.readme e12 stereo images in the wedges region
e12_wedge_left.tif
e12_wedge_right.tif
e3wedges.liz C3 Wedges image with one set of missing lines filled in
e4callan.liz E4 Callanish Macula mosaic
wedges_perspec_1.vic perspective view of wedges 01/02 area
pwyll20.vic Pwyll viewed from 20 deg elevation: height color coded
pwyll20bw.vic Same but no color coding (use XVD to open)
pwyll35.vic Pwyll viewed from 35 deg elevation: height color coded
pwyll35bw.vic Same but no color coding
pwyll45.vic Pwyll viewed from 45 deg elevation: height color coded
pwyll45bw.vic Same but no color coding (use XVD to open)
wedges35.vic wedges 01/02 area viewed from 35 deg elevation: color coded
wedges35bw.vic Same but no color coding
e12edge0102_dtm.hlf stereo products from DLR
e12edge0102_ortho.byt
e12edge0102_ortho.pict
Pwyll_ana.vic
wedges_e12_ana.vic
e12_2pwyll.vic e12 mosaics from Klem
e12_6chaos.vic
e12pwyll.vic
pwyll_e12.cub pwyll stereo products from Gregory Hoppa at LPL
pwyll_e6.cub
pwyll_stereo.tif
e12_3wedges.vic e12 mosaic from Klem
Pwyll_redblue.vic red - blue anaglyphs, pwyll and wedges
Wedges_redblue.vic
E12-wedges-draft.avi DRAFT video with a flight over our wedges01/02 DTM
E12-wedges-draft.mac
dlr_e12chaos_cntxt_pass1.mos E12 Conamara Chaos 10m/pix in E6 context (vicar)
dlr_e12wedge02_c3_cntxt.vic mosaic of 12ESWEDGES02 in C3 context
e6e12_pwyll_orth_anagl_blue.vic Pwyll red-blue anaglyph image
pwylln_color_new.vic color-coded stereo model of Pwyll
E12_Wedges_15M.vic Europa Wedges 15M mosaic
E12_Wedges_15M_E12_context.vic Europa E12 Wedges mosaic
E12_Wedges_E12_C3_context.vic Europa Wedges E12_C3_context mosaic
E12_Wedges_E12_C3_30M_context.vic Europa Wedges E12_C3_30M context mosaic
e12_wedge2_25M.vic Europa wedge2 25M mosaic
e12_wedge2_cxt.vic Europa E12 wedge2 mosaic
Ncumplot_E12_1.VIC DLR cumulative frequency diagrams
Ncumplot_E12_2.VIC
Ncumplot_E12_3.VIC
e12pwyllnimssi.tif first cut of SSI/NIMS Pwyll map
e12craters.crc.gif Europa crater plot containing E12 data (Chapman group)
(image renamed e12craters_crc.gif)
e12craters.crc2.gif Another Europa crater plot (Chapman group)
(image renamed e12craters_crc2.gif)
e12pwyllnimssi.tif updated E12 Pwyll map
(image renamed e12pwyllnimssi_2.tif)
1913.vic products for E12 press conference
1939.vic
1952.vic
2378.vic
2825_28.tif
2828.vic
2842.vic
2846.vic
e12_2pwyll.vic
europa_prov_chaos.tif
pwylln_color_new.vic
DLR_stereo_loc.tif outline of DLR stereo model area in C3 Wedges frame
pwyll_persp_col_15504.tiff perspective view of Pwyll (frame s0383715504)
pwyll_persp_col_68700.tiff same as above but frame s0426268700)
pwyll_ortho_col.tiff Orthophotos of Pwyll with color indicating heights
DRL_E12CHAOS_PASS1COUNTS.VIC E12 pass 1 mosaic of Europa Conamara Chaos
Ncum_e12.pct PICT format Cumulative and R-plots
Nrel_e12.pct
Ncum_e6_e12_1.pct
Nrel_e6_e12_1.pct
Ncum_e6_e12_2.pct
Nrel_e6_e12_2.pct
Ncum_e6.pct
Nrel_e6.pct
E12DLR_Chaos_Color_1.tiff SW part of Europa high res DarkLinColor mosaic
e12eswedges03mos.pict Preliminary E12 wedges03 mosaic (Photoshop pict)
E11DLR_2nd_family_portrait.tiff 4 Galilean satellite+Amathea+Thebe+Metis+Adrastea
(in Callisto.products directory)
C9_Europa_PG_enhTD.tiff C9 globals: natural and enhanced
dlr_e12wedge03_c3_cntxt.mos E12 wedge_03 in C3 context
dlr_conamara_chaos_e12_cntxt.mos Mosaic of Conamara chaos in E6 context
s0426272849.rec.tiff 3 Northernmost E12 Wedge02 frames
s0426272853.rec.tiff supposedly w/ tire tracks fixed
s0426272856.rec.tiff
e6drklin_color.tif E6 drklin mosaic by Phillips for Nature cover (final)
e3wedges.liz From Klem for C3 Wedges but with missing data interpolated
e14mann.vic preliminary version of the new E14crater01 color images of the crater Mannann'an
e14shadowship.tif higher-resolution transect of Mannann'an
E14MANN2.HICOLOR$5NTIF e14mann2.hicolor.tif is and improved version of e14shadowship.tif
e14mann_hi.vic mosaiced the hires frame into the green frame of the lower-res color
e14_brn_mann_stereo.tif preliminary red-blue stereo anaglyph of the E14 Mannann'an frames
e14_brn_mann_stereo_pr.tif Crop of above to match e14shadowship.tif for releases
E14_tyre_add.tif From Moses Milazzo preliminary mosaic from E14 tyre in tif and three band vicar
tyre_968.vic, _grn.vic, _vio.vic
e14esdrkspt_anaglyph_rg.tiff preliminary anaglyph version of E14 dark
spot color/stereo target area From Roland Wagner
darkspotstereo.red, darkspotstereo.grn, darkspotstereo.blu
red/blue version of above from Thomas Roatsch and Uli Koehler
darkspotstereo.red2, darkspotstereo.grn2, darkspotstereo.blu2
MIPS brightened/stretched version of darkspotstereo.red ...
e12e14wedgestereo.* stereo of the e12/e14 "wedges"
e12e14wedgestereofr.* stereo of the e12/e14 "wedges" w/frame
E6 images in context from Klem for releases
E6MOSAICS.TIF E6 Pwyll and Drklin in E2 global
E6PLAINS.TIF 2 hi-res. plains mosaics in E6 Drklin
e4callen.man, *.str E4 Callanish mosaic `cleaned up' from Klem 5/98
str is the full one; man is a subset (no email below)
DLR_E12WEDGE01_03_CNTXT.MOS 12ESWEDGE_01 in context with 12ESWEDGE_03
E14WEDGES.VIC Wedges: s0440955226.1 Picno 48 reprojected by Klem
E12_STEREO_DRIDGE.TIF
E12_STEREO_DARKBAND.TIF
E12_WEDGES_STEREO_LEFT.TIF
E12_WEDGES_STEREO_RIGHT.TIF
e12_stereo_15m_50m.tif From Hoppa E12 wedges region at 15 meters and 50 meters
per pixel
e14mannhires.vic From Phillips E14 crater2 (Mannann'an)
e14mannhires_cxt.vic Above on top of green lower resolution context
e14_lpl_mann_stereo.tif From Hoppa, anaglyph of western rim of Mannann'an
e14_lpl_mann_stereo_crop.tif Cropped for PR purposes
E14_tyre_968.vic, *_grn.vic, *_vio.vic From Moses Milazzo, E14 Tyre color mosaic
E14_tyre_color.jpg Above, but combined into a jpeg by Moses
E14_tyre_clear.vic From Milazzo, E14 Tyre clear mosaic
E14_tyre_clear.jpg Above converted to jpeg by Moses
E12_Wedges_C3_context.vic From Milazzo, E12 Wedges in C3 context mosaic
manannan_anaglyph.tif From Wagner, E14 Mannann'an stereo
e12pwyll.vic ortho. reprojected green-filter pwyll with violet-filter gap fill
e12_2pwyll.vic March USA Today image with the Pass 2 data included
e12pwyll.* individual filters with data gaps ortho. reprojected and coregistered
e12pwyll_prelim.* quick attempt to "fill the gaps" with data from the other filters
e14wedges_2.vic mosaic of the E14WEDGES data
*****************************************************************
****NOTE: NAME CHANGED TO FROM E14WEDGES.VIC TO ****
****E14WEDGES_2.VIC TO DISTINGUISH IT FROM A PREVIOUS PRODUCT****
*****************************************************************
WEDGES_DTM.VIC_HALF DTM and the ortho photo by Bernd Giese
WEDGES_IMAGE.VIC_BYT
e14trpbnd.vic mosaic of an offset in tripleband by ASU
e14_ganymede_968.vic,
e14_ganymede_grn.vic,
e14_ganymede_vio.vic Global color mosaic from Moses Milazzo
E14_darkspot.vic From Moses Milazzo, Dark Spot Mosaic
e15cilix1.tif From Cynthia Phillips, 'quick' color of E15 Cilix
E14_darkspot_red.vic, *968.*, *grn.*, *vio.* From Milazzo, Dark Spot Color Mosaic
E15regmap01_pass1.vic From ASU (Sarah Fagents), Preliminary (Pass 1) RegMap mosaic
cilix.red, *.grn, *.blu From ASU (Sarah Fagents), processed w/ Hapke correction
E15_G1_vio.vic From Moses Milazzo
E15_G1_grn.vic Preliminary E15 RegMap
E15_G1_red.vic Color composite w/ Paul Geissler's G1 Sciencefigure
E15_G1_756.vic
E15_G1_889.vic
E15_G1_968.vic
E15_regmap.vic and clear filter
e15photom_context.tiff From ASU, Europa Photometry, preliminary of pass 1
e15g1regmap01_pass1_cxt.vic From ASU, E15 regmap in G1 global context
e15_lpl_cilix_stereo1.tif From Greg Hoppa, preliminary stereo
e15_lpl_cilix_stereo1_left.tif individual stereo of left
e15_lpl_cilix_stereo1_right.tif individual stereo of right
Search on the following email messages by file name for more information.
############################################################################
############################################################################
>From tbecker@flagmail.wr.usgs.gov Fri Apr 19 18:27:38 1996
To: all_hiips@noao.edu
Subject: VGR europa mosaic available
X-Sun-Charset: US-ASCII
The voyager control base mosaic for europa is complete!!
The final products are available on our ftp site:
ftp -i ftpflag.wr.usgs.gov
username: ftp
password: (your e-mail address)
ftp>cd pub/outgoing
ftp>binary
ftp>get (filename)
**NOTE to PICS users: Sinusoidal projection is the only projection
compatable between ISIS and PICS. All files were processed in
ISIS. If you want to reproject in PICS you will have to use the
file that is in sinusoidal projection mentioned below. **
**NOTE** The north and south poles have been "trimmed" off for
the purpose of avoiding any chance of misinterpetation of
erroneous data. High resolution coverage at the south pole was
retained because of the quality of data.
If there are any problems please e-mail tbecker@flagmail.wr.usgs.gov
Description/filenames of final products available (three formats) -
1) Global mosaic - hires/lowres merged
Filenames: europa_simp.cub (isis format)
europa_simp.pic (pics format)
europa_simp.raw (raw file - no labels)
Description:
Projection: Simple Cylindrical
kilometers/pixel scale: 4.0
latitude range: -90.0, 90.0
longitude range: 0.0, 360.0
center latitude: 0.0
center longitude: 180.0
bit type: 8 (byte)
number of lines: 1226
number of samples: 2453
2) Global mosaic - hires/lowres merged
Filenames: europa_sinu.cub (isis format)
europa_sinu.pic (pics format)
europa_sinu.raw (raw file - no labels)
Description:
Projection: Sinusoidal
kilometers/pixel scale: 4.0
latitude range: -90.0, 90.0
longitude range: 0.0, 360.0
center latitude: 0.0
center longitude: 180.0
bit type: 8 (byte)
number of lines: 1226
number of samples: 2453
3) High Resolution Mosaic - Orth projection
Filenames: eur_hi_orth.cub (isis format)
eur_hi_orth.pic (pics format)
eur_hi_orth.raw (raw file - no labels)
Description:
Projection: Orthographic Projection
kilometers/pixel scale: 1.0
latitude range: -90.0, 70.0
longitude range: 135.0, 230.0
center latitude: -22.0
center longitude: 128
bit type: 8 (byte)
number of lines: 3123
number of samples: 3123
4) High Resolution Mosaic - Simp projection
(With this version the low resolution mosaic was scaled to
1.0 km/px and placed underneath the high resolution mosaic)
Filenames: eur_hi_simp.cub (isis format)
eur_hi_simp.pic (pics format)
eur_hi_simp.raw (raw file - no labels)
Description:
Projection: Simple Cylindrical
kilometers/pixel scale: 1.0
latitude range: -90.0, 70.0
longitude range: 135.0, 230.0
center latitude: -10.0
center longitude: 180.0
bit type: 8 (byte)
number of lines: 4361
number of samples: 2550
A sinusoidal projection of the hi-res mosaic can be made
available upon request.
5) One G1 observation of Europa - Orthographic with lat/lon grid
(The north pole has been filtered with a low pass filter
to replace the null data)
center latitude/center longitude = subspacecraft lat/lon for g1
Filenames: eur_g1_grid.cub (isis format)
eur_g1_grid.pic (pics format)
eur_g1_grid.raw (raw file - no labels)
Description:
Projection: Orthographic
Kilometers/pixel scale: 4.0
latitude range: -90,90
longitude range: 0,360
center latitude: 23.38
center longitude: 217.47
bit type: 8 (byte)
number of lines: 781
number of samples: 781
#########################################################################
From: Alfred McEwen (GD.Flagstaff) (520)556-7194
Received: by masursky.wr.usgs.gov (8.7.5) id LAA22556; Tue, 30 Jul 1996 11:27:29 -0700 (MST)
Date: Tue, 30 Jul 1996 11:27:29 -0700 (MST)
Message-Id: <199607301827.LAA22556@masursky.wr.usgs.gov>
To: all_hiips@noao.edu
Subject: Europa G1 mosaic
X-Sun-Charset: US-ASCII
Status: R
Cynthia Phillips processed and mosaicked the first 3 Europa
frames; I added an edge-enhancement filter. Image
is on rushmore /home/ssi/review/eur1h.vic
(Vicar format).
########################################################################
>From ssi_science-request@noao.edu Wed Jul 31 12:50:46 1996
To: ssi_science@noao.edu
Subject: Europa color composites
X-Sun-Charset: US-ASCII
Quick-look (jpeg) versions of the visible and infrared Europa color images
are in /home/ssi/review as Europa-RED-GRN-VIO.jpg and Europa-968-889-756.jpg.
These were GALSOSed with VICAR and then registered and despiked with ISIS.
I'll upload the individual frames as soon as I find the isis2vic program
that Larry mentioned.
Paul Geissler
########################################################################
>From amy_culver@iplmail.jpl.nasa.gov Wed Jul 31 13:00:26 1996
Subject: Europa mosaic
To: "Mike Belton"
Cc: "Helen Mortensen"
X-Mailer: Mail*Link SMTP-QM 3.0.2
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"; Name="Message Body"
Content-Transfer-Encoding: quoted-printable
Hi Mike,
Ken Klassen and Ron Greely told me you were interested in seeing the =
Europa 2 X 2 mosaic with a high pass filter applied to pull up the =
terminator. I have generated this mosaic, and it is available for ftp =
from the MIPS internal ring: /project/ssi1/joo/tmp/europa.mos_flt_str
Ron seemed to think it looked good, and it's going into the PIO queue for =
consideration to be used for the press conference.
Enjoy,
Amy
#######################################################################
>From ssi_science-request@noao.edu Thu Aug 1 13:25:17 1996
To: ssi_science@noao.edu
Subject: Io and Europa products
X-Sun-Charset: US-ASCII
On Rushmore /home/ssi/review are the following:
eclipse.red, eclipse,grn, eclipse.blu
too_hot_for_europa Io eclipse image cleaned up and
color-coded. For your eyes only. Vicar format
eurfilt.vic (vicar) and eurfilt.cub (ISIS)
Europa 4-image controlled mosaic with filters
to enhance detail. Processing by Cynthia Phillips
and myself.
Alfred
####################################################################
From: Alfred McEwen (GD.Flagstaff) (520)556-7194
Received: by masursky.wr.usgs.gov (8.7.5) id LAA04799; Mon, 5 Aug 1996 11:53:48)
Date: Mon, 5 Aug 1996 11:53:48 -0700 (MST)
Message-Id: <199608051853.LAA04799@masursky.wr.usgs.gov>
To: all_hiips@noao.edu
Subject: Europa color /Class A
X-Sun-Charset: US-ASCII
Status: RO
A Europa color-ratio composite merged with filtered
red image is available on Rushmore /home/ssi/review
europa.red, europa.grn, europa.blu, vicar format.
Red is red/vlt ratio
Grn is red/1MC ratio
Blu is vlt/red ratio
each merged with red image after combo of filters
to enhance topographic and albedo information.
Images recieved special noise-removal filters
prior to ratios.
Alfred
####################################################################
>From DENK@omega.pe.ba.dlr.de Tue Aug 20 08:49:52 1996
To: eliz@noao.edu
Cc: NEUKUM@kappa.pe.ba.dlr.de, JAUMANN@kappa.pe.ba.dlr.de,
DENK@kappa.pe.ba.dlr.de
Subject: Europa color image / urgent
Hello Liz:
On Rushmore, directory
/export/home/tbd,
there is a new color VICAR image of Jupiter's moon Europa.
The names of the three B/W files are
g1dlr_europa_color_1.red
g1dlr_europa_color_1.grn
g1dlr_europa_color_1.blu
The name of the possible Cat.-B Text caption can be found in file
g1dlr_europa_color_1.txt
We would like to ask you to select this image as a Category B release.
It is very important for us to get a quick answer because Gerhard Neukum
has the possibility to submit it to a big German weekly magazine (named FOCUS)
which might add it to an article about Galileo which will appear next Monday.
Thank you very much in advance for your help, and viele Gruesse,
Tilmann
Subj: Europa color
Quick-look (jpeg) versions of the full frame Europa color data are available
on rushmore in /home/ssi/review as Europa.full.756-GRN-VIO.jpg and
Europa.full.968-756-VIO.jpg. The data are available in /home/peg/europa2
as europa2.cub.Z, in the same isis format as the previous half-frame images
(i.e., VIO-GRN-RED-756-889-968) and likewise GALSOSED using the operational
defaults, and then despiked and coregistered with isis. Also in
/home/peg/europa2 are losslessly compressed versions of the jpeg composites.
Paul Geissler
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>From DENK@gamma.pe.ba.dlr.de Fri Aug 30 06:19:05 1996
To: belton@jupiter.tuc.noao.edu, veverka@cuspif.tn.cornell.edu,
greeley@atlas.la.asu.edu
Cc: NEUKUM@terra.pe.ba.dlr.de, DENK@terra.pe.ba.dlr.de
Subject: Europa color frames on Rushmore
===============================================================================
From: Tilmann Denk, Gerhard Neukum
To: Mike Belton, Joe Veverka, Ron Greeley
Subj: Europa color frames on Rushmore
Date: 30-Aug-1996
===============================================================================
Hello Mike, Joe, and Ron:
There are three new image "groups" of Europa color vicar images on the Rushmore
/home/ssi/review
directory. I have put them on Rushmore in agreement and on behalf of Gerhard
Neukum, who is on vacation until early September.
The file names are:
g1dlr_euro_col_2*.* (7 Vicar files + 1 Textfile)
g1dlr_euro_col_3.* (3 Vicar files: red, grn, and blu)
g1dlr_euro_col_4.* (3 Vicar files: red, grn, and blu)
-----
g1dlr_euro_col_2*.*:
These images are proposed to be selected for category B release as a possible
"Europa color week". Possible figure captions are given in the file
G1DLR_EURO_COL_2_WEEK.TXT.
- The first image, which might be released on a Monday, would be
"G1DLR_EURO_COL_2_MON.VIC". It shows a violet image of Europa.
- The "Tuesday frame", G1DLR_EURO_COL_2_TUE.VIC, contains a 1MC filter image.
- On Wednesday, frame G1DLR_EURO_COL_2_WED.VIC shows a color ratio of these two.
- The Thursday frame, G1DLR_EURO_COL_2_THU.VIC, is a NIR filter frame and
the precursor of
- the Friday frame (G1DLR_EURO_COL_2_FRI.RED, G1DLR_EURO_COL_2_FRI.GRN, and
G1DLR_EURO_COL_2_FRI.BLU for three color channels), which is an approximately
true color frame of this area on Europa. It is a combination of the NIR
image from Thursday for the red channel, the violet image from Monday as
the blue channel, and a 50-50 combination of both used for the green channel.
g1dlr_euro_col_3.*:
Three files, G1DLR_EURO_COL_3.RED, G1DLR_EURO_COL_3.GRN, and
G1DLR_EURO_COL_3.BLU can be combined to a color frame of Europa. The left
part shows a "true" color view of this area, while the right image contains
a combination of three color ratios (1MC/NIR, GRN/VLT, VLT/NIR as the red,
green, and blue channel, respectively). The filter selection for the left
and the right images is similar to the filter selection of our Ganymede
file (GANYCOLOR2.* files) on Rushmore.
g1dlr_euro_col_4.*:
The three files G1DLR_EURO_COL_4.RED, G1DLR_EURO_COL_4.GRN, and
G1DLR_EURO_COL_4.BLU may also be combined to a Europa color frame. The
red channel contains a 1MC, the green channel a NIR, and the blue channel
a VLT frame, all histogram-stretched and filtered. The result is a false
color frame which shows a lot of details on the surface. (This image is
currently my favorite Europa image.)
We would like to offer these images to the SSI Team and feel that they might
be selected as cat.-A or cat.-B releases, or for an upcoming publication.
For the possible case of a selection, we would be happy to provide a draft
for a figure caption.
Viele Gruesse from Berlin,
Tilmann
Subj: europa
I have placed two files in Rushmore that show the vague ringed
structure that I talked about in our abstract for the Europa ocean
conference. Each file is in three separate formats for ISIS (.cub),
VICAR (.vic) and tiff (.tiff). Both versions are stereographic with
central coordinates of 25S, 200W. One file is the Flagstaff global
mosaic of Europa reconfigured in a stereographic projection. The
second mosaic has the Galileo four-frame mosaic added in. THESE ARE
VERY CRUDE PRODUCTS. I had wanted to delay distribution until I had
some more cosmetically pleasing products, but there appears to be
some interest in immediately seeing what we have.
The files are in RUSHMORE
/home/ssi/review
-rw-r--r-- 1 sxa gllssi 3626496 Oct 3 10:47 europa_voy_stereogrid.cub
-rw-r--r-- 1 sxa gllssi 3580865 Oct 3 11:03 europa_voy_stereogrid.tiff
-rw-r--r-- 1 sxa gllssi 3582117 Oct 3 10:47 europa_voy_stereogrid.vic
-rw-r--r-- 1 sxa gllssi 3630080 Oct 3 10:47 europamos_stereogrid.cub
-rw-r--r-- 1 sxa gllssi 3582117 Oct 3 10:47 europamos_stereogrid.vic
-rw-r--r-- 1 sxa gllssi 3580865 Oct 3 11:11 europamos_stereogrid.tiff
The black areas at top and bottom are areas at the poles where we
have no data. The latitude-longitude grid is in 20 deg increments.
There are obvious artifacts in the mosaic that are caused by limbs
and terminators in both the Voyager and and Galileo images. Despite
these artifacts, I believe that you can readily see the bulls-eye
effect. The arcs are caused mostly by triple bands to the north and
by the boundaries between mottled and non-mottled areas to the east.
The center of the bulls-eye is that crackled terrain in the southern
part of the area imaged by Galileo. You can see very distant arcs
near ths north pole and over the south pole. A note of caution on
stereographic projections. While small circles on a globe convert to
circles on the projection, the true centers of the circles are
slightly offset from the apparent centers in the projection
Before releasing this I had wanted to do better processing to bring
out what is in the dark area to the west. This is under way. Frank
Chuang, who recently received his Bachelors in Geology from San Jose
State, is doing the image processing. He is fairly new to the game
but is learning fast.
#########################################################################
Dear Ron, and other "Europhiles":
The so far available parts of the 1 micron filter image have been compiled to
a preliminary version of our Europa G2 color frame.
The vicar files g2dlr_euro_prelim3.red, grn, blu
in Rushmore's directory /export/home/tbd
show an enhanced and filtered version with the 1MC filter as the red, the
GRN filter as the green, and the VLT filter as the blue channel. The still
missing data (1 gap in each filter) have been filled by data from the VLT
or GRN filter and appear as B/W stripes in the image.
Short, preliminary description:
The "disappearance" of the mottled terrain in the 1 micron filter that has also
be seen before by HST is obvious. Only the bright crater at 26S, 271W ("Pwyll")
is clearly visible. It shows a "spider-like" appearance, reminding to a
volcano on Earth with rivers running down from the center. Is it possible
that liquid water has created this structure??
After image enhancement, additional features are visible in the 1MC image,
like the dark circular feature near 15S,335W; "1MC-inversed" bands in the
polar regions, only few linea within the mottled terrain, and the outlines of
areas within the mottled terrain that are also brighter than their surrounding
terrain in the visible wavelengths.
The photometric effects of high incidence/emission angles can be seen very
well, too. The higher the incidence/emission angle, the bluer is the
disk of Europa. It might be difficult to extract spectra or albedo measurements
from these images without proper photometric correction.
The mottled terrain shows different color units. The reddest color is seen
near the eastern limb (anti-Jovian side, the area that has been covered by
G1 clear filter imaging), decreasing towards west to rather brownish hues
(in this false color version of the image) at the Jupiter-facing hemisphere.
Interestingly, one of the darker areas in the violet and green frames, the dark
area at the very western edge of the image, is also dark in the 1MC filter
creating a dark-bluish color here, while the mottled terrain appears reddish
brownish. A major cause of this should be the photometric effects, but there is
such a big difference to the surrounding terrain at the east that also the
possibility of different surface materials might be considered.
For the circular feature near 15S,335W, the "moat" around the center is
darker in all three filters than the central material.
So far a preliminary description of the color contents of the G2 Europa
photometry frame.
Viele Gruesse from Berlin,
Tilmann
From: Tilmann Denk
To: GREELEY@atlas.la.asu.edu
CC: ssi_science@noao.edu, DENK@terra.pe.ba.dlr.de
Message-ID: <961025231514.2500049a@terra.pe.ba.dlr.de>
Subject: G2 Europa 3-color frame
######################################################################
****OUTDATED BY LATER RELEASE***
>From ssi_science-request@noao.edu Wed Oct 23 13:48:41 1996
To: ssi_science@noao.edu
Cc: DENK@terra.pe.ba.dlr.de
Subject: Europa G2 color
Dear friends of Europa:
A preliminary false color composite of the G2ESPHOTOM01's green and violet
filter images has been put on the Rushmore directory
/export/home/tbd
The filenames are
g2dlr_euro_prelim.red, grn, and blu;
file format is vicar.
The image (as some kind of "appetizer") gives a slight indication about what
we might expect to get when the remaining G2 Europa data will be on the
ground. Enjoy it!
Tilmann
****OUTDATED BY LATER RELEASE***
##########################################################################
>From ssi_science-request@noao.edu Fri Nov 1 14:19:26 1996
To: ssi_science@noao.edu
Subject: Europa G2 color image
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
A reconstructed version of the Europa G2 color image (with missing data
filled in using ISIS bndsynprc program) has been placed on rushmore in
/home/peg/G2 as "europa_G2.jpg". Also at this location is the .cub file
with data gaps left in. The jpeg image can also be seen at url:
http://www.lpl.arizona.edu/hiips/Projects/Jupiter/Europa/Europa_Color/Images.html
Cheers, Paul
############################################################################
****OUTDATED BY LATER RELEASE***
>From DENK@gamma.pe.ba.dlr.de Tue Nov 5 04:01:38 1996
To: greeley@atlas.la.asu.edu, sullivan@atlas.la.asu.edu, belton@noao.edu
Cc: veverka@cuspif.tn.cornell.edu, eliz@noao.edu,
geissler@amalthea.lpl.arizona.edu, NEUKUM@terra.pe.ba.dlr.de,
DENK@terra.pe.ba.dlr.de
Subject: Re: G2 Europa color release to the public
Hello Ron, Rob, et al.:
On Rushmore's directory /home/ssi/review
the vicar files g2dlr_europa_color.red, grn, blu
(with a size of about 2.6 MB each)
contain two versions of the G2 Europa violet and 1MC filter data: The left
image shows rather "natural" colors, while the frame on the right shows a
false color image where the colors have been somewhat adapted to the ones
that can be found in Paul Geissler's G1 Science Magazine Europa composite.
The green channel of the vicar image is a composite of VLT and 1MC data to
simulate at some degree the missing NIR filter. GRN filter data have not been
used so far because of the data gap close to the most interesting area in the
frame (Pwyll). This will be changed when we know more about the status of
the missing data, probably not before the Ocean Conference. The attempt to
simulate Paul G.'s colors is not affected very much by this because Paul
used the 1MC, NIR, and GRN data for his G1 frame, and the G2 sequence doesn't
contain NIR data at all so that all attempts to create similar colors
cannot be perfect. But, in my opinion, the hues are rather close to the
colors from Paul's G1 frame.
The next e-mail contains a small discussion about what the colors mean and
about a few special features. A suggestion for possible color imaging in E6
will also be given in the next e-mail.
Viele Gruesse from Berlin,
Tilmann
****OUTDATED BY LATER RELEASE***
##########################################################################
****OUTDATED BY LATER RELEASE***
>From ssi_science-request@noao.edu Tue Nov 5 04:26:24 1996
To: ssi_science@noao.edu
Cc: DENK@terra.pe.ba.dlr.de
Subject: Europa G2 "true" and false color composites
Dear Europhiles:
On Rushmore's directory /home/ssi/review
the vicar files g2dlr_europa_color.red, grn, blu
(with a size of about 2.6 MB each)
contain two new versions of the G2 Europa violet and 1MC filter data: The left
image shows rather "natural" color, while the frame on the right shows a
false color image where the colors have been somewhat adapted to the ones
that can be found in Paul Geissler's G1 Europa composite.
The white and bluish hues in the false color version indicate purer ice,
while the brownish-reddish hues are a property of the mottled terrain,
triple and other bands, maculae, crater interiors (bigger craters like Pwyll),
wedge-shaped bands, etc. and might represent "dirty" ice. The mottled terrain
area on the upper right which has been imaged in color also during G1 seems
to appear somewhat darker/"brownisher" than the mottled terrain at the center
or western latitudes in the G2 image. Therefore, its general appearance is
somewhat brighter in the G2 frame than in Paul G.'s G1 image.
In G1, the northern ("polar") part of the color frame shows a lot of bluish
hues due to "purer" ice. A similar situation also exists in the southern
hemisphere of Europa's trailing side, close to the south pole, and also
partly extending up to mid-latitudes (especially at western longitudes).
Between Pwyll and the south-eastern limb (at about 5-o-clock position), two
additional crater candidates are visible. One is very close to the limb,
and the other is about mid-way between Pwyll and the limb. Both have darker
interiors and a slightly brighter halo, somewhat similar to Pwyll. But for
the crater at the edge, the center is not brownish but rather bluish. Although
the limb-darkening due to photometric properties of Europa might play a role
for the increasing of the blue hue towards the limb, this seems not to be
sufficient to explain this "blue spot". In the VLT image, it is virtually not
visible at all, but in the 1MC frame, it appears as a prominent dark spot.
A possible explanation might be that this blue spot is a younger crater,
forgotten to be covered by frost particles from possible geysir-like eruptions
or whatever is the responsible process for the fact that the 1MC appearance
of Europa's trailing side is so uniform.
Very close to this blue spot, in the north-eastern direction, there is also
a "blue band", which remarkably differs in its spectral behavior from the
surrounding area, e.g. the brownish band very close to it in the north-
eastern direction. It might also be interpreted as beeing a younger feature.
[ Ron and Rob: The area covering Pwyll, the "blue band" and the "blue spot"
might be a nice 4-6-color regional-res. target for E6 imaging. It contains
"regular" south polar ice, mottled terrain and a triple band (Phinaus Linea)
as well as "unusual" "Pwyll-center" and "Pwyll-environment" material, and
the "bluish stuff". ]
Viele Gruesse from Berlin,
Tilmann
****OUTDATED BY LATER RELEASE***
###########################################################################
>From all_hiips-request@noao.edu Wed Nov 6 10:31:12 1996
To: all_hiips@noao.edu
Subject: Europa mosaic
X-Sun-Charset: US-ASCII
SSI team,
Cynthia Phillips has put together a preliminary
global mosaic with Voyager and Galileo G1 and G2
Europa coverage. The Galileo images are tied to
the Voyager geometry, accurate to about 2 degrees
lat/lon. Scale is 4 km/pixel.
The image is on the ASU ftp site:
ftp to:
atlas.la.asu.edu [that's la is in liberal arts (not one-ay)]
user: gll_hiips
password: (contact Rob or someone else at ASU for this info?)
We will ftp the files to rushmore as well.
The files are europa_voygal.sinu
and europa_voygal.sinu.readme
Alfred and Cynthia
***europa_voygal.sinu.readme****
Info file for europa_voygal.sinu
8-bit ISIS cube, created by Cynthia Phillips at LPL / U. Arizona on 11/5/96.
This image merges the Galileo G1 4-frame clear mosaic I did with the
G2 Europa image (image number s0360063913.2 = violet filter; the only
color we currently have a full image for), and the Voyager hi-res and low-res
mosaics from USGS. Pointing has been tied to the Voyager basemap, and
the overall resolution of the image is 4 km/pixel (the hi-res Voyager and
Galileo have been scaled down).
The image has been processed and filtered to enhance geologic features,
rather than preserve photometry. This would have been impossible given
the range of filters involved. The sinusoidal projection was chosen
so that accurate reprojections of any sort can be made using ISIS.
Please contact Cynthia Phillips (phillips@lpl.arizona.edu) or
Alfred McEwen (mcewen@pirl.lpl.arizona.edu) with any questions or
comments.
***********************
>From myche@acheron.jpl.nasa.gov Thu Nov 7 09:24:33 1996
To: eliz@noao.edu, "Sue LaVoie"
Subject: Re: FWD>Europa file
Cc: "Helen Mortensen"
On Nov 7, 7:15, Sue LaVoie wrote:
> Hi Myche,
> could you convert this ISIS image to VICAR or tiff so that Liz can view it?
> Helen is moving ISIS2VICAR to Rushmore today....could you explain to Liz how
> to do it so that she can convert future frames herself?
> thanks, > sue
OK...The file has been converted to VICAR and placed back in
rushmore:/home/ssi/review/europa_voygal.sinu.vic
I'm sure Helen knows this, but I should reiterate: isis2vic (like all current
VICAR routines) needs 'librtl.so', a shareable library. I took a quick look on
rushmore and only found the librtl.a (the old library).
One of two things will need to happen in order for Liz to run this program on
rushmore:
1. recompile isis2vic and *statically* link in librtl, or
2. copy librtl.so from coda3 to somewhere on rushmore for use with the
existing isis2vic.
Once one of these are picked, I can e-mail Liz how to use this software. The
instructions are similar, but not identical depending on which solution is
used.
Thanks...(there may be other solutions, but that's my quick analysis of the
situation)
Myche
###########################################################################
>From ssi_science-request@noao.edu Thu Nov 7 08:32:54 1996
To: ssi_science@noao.edu
Cc: DENK@terra.pe.ba.dlr.de
Subject: g2dlr_europa_color.*
Dear Europhiles:
An improved (and probably the final) version of our G2 Europa color composite
has been put on the Rushmore directory /home/ssi/review. The old files have
been deleted, the new ones are named
g2dlr_europa_color.red, grn, blu
Format is vicar. The major changes are that the left, "natural" color image
has been replaced by a "enhanced true color" version by request of ASU,
and for the right ("false color") image, the same filters have been used
as Paul Geissler did for the Europa color image in the Science Magazine.
Enjoy it!
Tilmann
>From DENK@gamma.pe.ba.dlr.de Thu Nov 7 07:15:41 1996
To: SULLIVAN@atlas.la.asu.edu
Cc: greeley@atlas.la.asu.edu, bender@atlas.la.asu.edu, eliz@noao.edu,
NEUKUM@terra.pe.ba.dlr.de, DENK@terra.pe.ba.dlr.de
Subject: RE: G2 Europa release
Hi Rob and Ron:
Following your request, I created "revised" versions of the Europa G2 color
composites. I deleted the old files on Rushmore, the new ones are currently
swimming somewhere over the Atlantic towards JPL. There names will be the
same as previously: g2dlr_europa_color.red, grn, blu.
Directory is /home/ssi/review on JPL's Rushmore.
The following changes have been done:
* False color composite, frame on the right: I now used the "same" filters
as Paul Geissler did, and I feel that it now looks really similar to a
printed version of Paul's G1 Science-Mag frame. I found a way to easily
fill in the missing data in the GRN image just using Photoshop. I bet you
will no longer find the gap, except if you ask me how you can see it in the
color frame...
The "NIR" frame used by Paul for G1 is not existing for the G2 data, therefore
I simulated this filter by combining the 1MC and the VLT filter.
* "Enhanced true color" composite, the frame on the left: "Enh. true col" is
a really nice wording for something that is selled as true but indeed isn't.
In my version, I used the NIR (the simulation), the GRN (with gap fill) and
the VLT (the only unproblematic one) filter frames. Therefore, it is indeed
a "true" color image because the filters that are closest to "true" have
been used. For the "false" color, the red channel is a "full-1MC frame" and
therefore really "false". On the other hand, the left frame is an "enhanced"
image due to filtering and histogram-stretch activities. Take a look at it:
Is it "rather true" or "rather enhanced"? I feel the latter is the case, but
if you worry about this, you might easily do the "Tonwertkorrektur" (Command L)
for this frame in the following way: "0 1.3 255" to balance it towards
"true" and away from "enhanced". The value "1.3 is meant
as "1.3 +-0.1", this is a matter of taste. I already checked this proposed
processing step and found that such an operation will not affect at all the
image quality. Feel free to make such changes.
* Both frames: Both have been rotated by 5 deg counterclockwise, so that North
is up. An arrow indicating the north direction has been added. Both frames
are zoomed by a factor of two compared to the raw data, this should be
"rezoomed" for a possible WWW version back to the original size.
Please, tell me if a further revision is still desired. I will send you an
additional mail when the three files have landed at JPL. Enjoy Europa!
Viele Gruesse from Berlin,
Tilmann
########################################################################
The superposition of the two high res C3 Europa framelets on G1 Europa and
on Voyager respectively are now on Rushmore following our problems with the
network at Brown this afternoon.
They are on Rushmore in the directory
/home/rtp/c3
The files are:
c3brn_eur_sumstrip.pict
c3brn_eur_sumstrip.vic
c3brn_eur_im8strip.pict
c3brn_eur_im8strip.vic
-Jim Head and Bob Pappalardo
From: MX%"amy_culver@quickmail384.jpl.nasa.gov" 11-DEC-1996 09:47:33.07
To: MX%"all_hiips@noao.edu"
CC:
Subj: Europa wedge images
Hi everyone,
The following files have been GALSOSed and stretched. In addition, the data
for c3jpl_eur_wedge1.bw (from SCLK 368639400) arrived in several pieces, so it
has been merged into one final image. The files are available from Rushmore
in the /home/ssi/review directory.
c3jpl_eur_wedge1.bw (SCLK 368639400)
c3jpl_eur_wedge2.bw (SCLK 368639414)
The file c3jpl_eur_wedge3.bw (SCLK 368639426) is on the way.
Amy
From: MX%"hoppa@pirl.lpl.arizona.edu" 11-DEC-1996 15:49:57.79
To: MX%"ssi_science@noao.edu"
CC:
Subj: C3 Europa image
I made a mosaic of the new C3 Europa image
with voyager in the backround. The image
is located in:
/home/ssi/review/eur_c3_mos.tif
enjoy,
Greg
From: MX%"cchapman@grendel.space.swri.edu" 11-DEC-1996 17:36:35.02
To: MX%"ssi_science@noao.edu"
Subj: Europa Wedges Craters
A remarkable attribute of the new Europa pictures is the
virtual absence of impact craters (or craters of any kind). There was
debate at the recent Europa Oceans Conference about whether the
10 km diameter "pits" prominent in some portions of our G1 images
were degraded impact craters or, as we proposed (based on size
distributions and the apparent mutual avoidance between pits and
lineaments), endogenic features.
Gene Shoemaker and I agreed that a test would be to see how
many smaller craters there are. If the pits are primarily a
monomodal group of endogenic features, then one would expect far
fewer small impact craters than if there were a power-law-like size
distribution characteristic of impact craters.
With the proviso that the "Wedges" district could be atypical of
the regions studied in G1, the answer seems clear: even small impact
craters are remarkably rare. On the Wedges picture received today,
there are only 2 obvious craters 5 pixels across or larger. I have
plotted a frequency for this "crater count" on the diagram I displayed
at the Oceans conference. It has been placed on Rushmore for you
to look at, in two forms:
For a Postscript version: /home/ssi/review/eurcra.ps
For a GIF version: /home/ssi/review/eurcra.gif
The following caption applies:
Fig. 1. Differential frequencies for pits in near-terminator regions of
Europa from G1 images plus a count from the "Wedges" frame from
C3. Open and closed green symbols indicate two different G1
regions, illustrating typical variations in spatial densities of pits.
(Purple triangles are counts of possibly saturated pits from a small
region; it is speculative if these near-resolution-limit features are
mostly real.) Typical counts from Ganymede (line = Uruk Sulcus,
squares = Galileo Regio) are for comparison. Note very steep size
distribution for larger pits indicating a cut-off in pits larger than 25
km diameter. The roll-off at small sizes may be real, in which case
pits are clustered about a modal size of 8 km, indicative of endogenic
origin; if the roll-off were an artifact of resolution, then the absence
of large pits would be compatible with the hypothesis that they are
mainly an impact population, with loss of larger ones by viscous
relaxation.
However, as shown by the blue diamond, smaller craters seen on
the high-resolution Wedges frame are extremely rare, with a
frequency perhaps two orders of magnitude less than on Uruk Sulcus.
Assuming that the Uruk Sulcus craters are primary impact craters
(and not secondaries) formed after any early bombardment period,
this would imply that the Wedges terrain on Europa is AT LEAST
two orders of magnitude younger than Uruk Sulcus (even younger
given the higher cratering rate expected on Europa due to gravita-
tional focussing by Jupiter).
Clark R. Chapman and the SwRI Crew (Bill Merline, Beau Bierhaus,
John Keller, Shawn Brooks, Peter Tamblyn)
From: MX%"mcewen@pirl.lpl.arizona.edu" 16-DEC-1996 10:51:12.73
To: MX%"ssi_science@noao.edu"
Subj: new Europa filtered image
On Rushmore, /home/ssi/review
wedge.vic Vicar format
or
wedgef.cub ISIS format
latest Europa wedge image with filters
to remove noise and pixelation and enhance edges.
Alfred
From: MX%"brt@GAS.UUG.Arizona.EDU" 14-DEC-1996 02:40:07.55
To: MX%"ssi_science@noao.edu"
Subj: Wedge reconstruction images
Europans,
I have placed eight images of my Wedges reconstruction in rushmore at:
/home/ssi/review/Step.*
or
/home/ryt/Step*.tif
They are tiff files. If you have trouble getting these, let me know.
(If you have comments about any of this please let me know, including
figures, etc.)
What you have in front of you (I assume) are eight images in two sets of
four which track the reconstruction of part of the terrain seen in the C3
Wedges image.
The first set of four is annotated ("*copy"). Bands that were
reconstructed are labeled B, C, and D. Also shown are key features whose
progressive re-assembling marks the stages of the reconstruction as we go
back in time. These features are "The Oblong" O, with parts 1-3, and
"Lineament" L, both traced with a dark line.
The second set of images matches the first but is not labeled. For
simplicity, I refer to the images as 1, 2c, 2f, and 3b.
Image 1) This is the original image showing the scene today. From
superposition, it is clear that the dark NW-trending wedges B and C plus
the dark band A are the youngest of the major bands. D is older. The
reconstruction "closes" B, C and D in that order. (The order B-C was
arbitrary.) The Oblong "O" is broken into three pieces and lineament L
is in at least five segments today.
Image 2c) Band B is closed, plus some related smaller adjustments made to
realign local linear features. Parts 1 and 2 of the Oblong come together
as do two southern segments of lineament L. Note that I closed Band B
fully. A gore begins to develop on the left side (west) of the image
because I moved terrain eastward to accomplish the closure of B. This
makes sense when you look at the Voyager images and see that the blocks
bounded by the wedge-shaped bands in this region have apparently moved
southwest while separating and translating.
Image 2f) Band C closes, removing the second major young wedge-shaped
band. As a result, additional parts of the Lineament L rejoin. It is
only broken now by the branches of B and D. Because younger features are
disrupted the scene gets confusing. (Do not adjust your set.) It is
complicated also by the cut-lines required for the reconstruction. The
features to look for are the piercing points that mark deformation - e.g.
the Oblong and the Lineament. The closure of C required care because the
band splits in the east and the total accommodation on the "tributaries"
must equal that of the main trunk. The gore from image 2c is now wider
along all its length.
Image 3b) Closing band D completes the assembly of Lineament L. Part 3
of the Oblong rejoins parts1 and 2. A small gore remains in the D
alignment, and on the far east side. The west side gore has enlarged.
Again, the full width of band D was utilized, i.e. it was closed all the
way.
There is no way, geometrically, to reassemble the Oblong and the
Lineament without closing the bands all the way. If you close the bands
by a lesser amount, these two features do not re-form coherently. This
can only happen if the bands are bounded by vertical tension fractures
and represent gaps which fill-in somehow. They cannot be areas of crust
that is thinned along listric normal faults or tilt blocks; the bands
could not be fully closed in that case. (See Golombek and Banerdt, 1990;
Pappalardo and Sullivan, 1996; Schenk and McKinnon, 1989.) I agree with
the Brown memo that the internal ridges may be associated with volcanism
of some type, e.g. sheeted dikes.
By superposition, the Oblong is relatively old terrain. Notice that it
seems to be lower than the bordering lineated terrain on the NW and SE.
Notice also that it contains the distinctive crater. Is the presence of
the crater a coincidence or a consequence of the terrain's longevity?
In the Voyager 2 images, it is hard to tell what the light-toned bands
like Band D are. Here we see that D is an extensional feature, perhaps
analogous to B and C, only older. They all may be structurally like
Thynia Linea (Pappalardo and Sullivan, 1996).
B, C, and D are extensional, but record stress directions that are
different. B and C formed with minimum stress oriented NE; D formed with
it oriented NNW (assuming no polar wander).
I have not yet reconstructed Band A nor the light band branching off D
and between D and A. Band A seems more complex than the relatively
simple B and C and has eluded me so far.
In fact, it may be a strike-slip feature (Schenk and Mckinnon, 1989).
REFERENCES:
Golombek, M.P., and Banerdt, W.B., 1990, Constraints on the subsurface
structure of Europa: Icarus, v. 83, p. 441-452.
Pappalardo, R.T., and Sullivan, R.J., 1996, Evidence for separation
across a gray band on Europa: Icarus, v 123, p 557-567.
Schenk, P.M., and McKinnon, W.B., 1989, Fault offsets and lateral crustal
movement on Europa: evidence for a mobile ice shell: Icarus, v. 79, no.
1, p. 75-100.
Randy Tufts
#######################################################
>From ssi_science-request@noao.edu Thu Dec 26 16:05:40 1996
Date: Thu, 26 Dec 1996 16:05:05 -0700
From: mcewen@pirl.lpl.arizona.edu (Alfred McEwen)
To: ssi_science@noao.edu
Subject: Re: europa
X-Sun-Charset: US-ASCII
Content-Length: 1006
2001
The 35 m/pixel Europa partial frame (s0374685100) is mosaicked
within part of the 630 m/pixel context frame (s0374667300)
on Rushmore:
/home/ssi/review/eur_35_context.vic
A groove lane with 3 strands seen at 630 m/pixel consists of
many finer grooves at 35 m/pixel.
----------------------------------------------------------------------
to Mike Carr: the area about which I asked "are there flows and channels
on Europa?" is the lower left portion of s0374667300, 630 m/pixel. There
is a bewildering array of morphologies, poorly resolved, but including
lobes overlying ridges--for example at sample 305, line 475. The
putative channels are where the ridges appear to have been "washed out",
such as sample 373, line 430. This is only a medium-res context frame,
so we should see similar features (elsewhere on Europa) at much higher
resolution.
####################################################################
>From ssi_science-request@noao.edu Mon Dec 30 16:35:42 1996
Date: Mon, 30 Dec 1996 16:35:18 -0700
From: mcewen@pirl.lpl.arizona.edu (Alfred McEwen)
To: ssi_science@noao.edu
Subject: Europa E4 mosaic
X-Sun-Charset: US-ASCII
Content-Length: 219
The 35 m/pixel Europa frames (s0374685100, s0374685139) are
mosaicked within part of the 630 m/pixel context frame (s0374667300)
on Rushmore:
/home/ssi/review/eur_35_context.vic
Image dimensions are 2001 x 2001.
#####################################################################
From: MX%"jry@potato.JPL.NASA.GOV" 10-JAN-1997 11:14:35.04
To: MX%"all_hiips@noao.edu"
CC:
Subj: E4 images
The E4 images which are being considered for release to the press are on
rushmore in /home/ssi/review and are called
e4asu_eur_34m_cut.bw e4jpl_eur_darkmaterial_mos_cut.bw
e4asu_eur_630m.bw e4jpl_eur_macu_374667300_div.bw
e4asu_eur_630m_cut.bw e4jpl_eur_macu_374667300_hpf.bw
e4jpl_eur_macu_cut_374667300.bw
e4jpl_eur_darkmaterial.bw e4jpl_eur_macu_cut_374685139.bw
e4jpl_eur_darkmaterial_mos.bw e4jpl_eur_macu_mos.bw
--jan yoshimizu
#####################################################################
>From ssi_science-request@noao.edu Mon Feb 10 13:21:56 1997
Date: Mon, 10 Feb 97 13:19:02 MST
From: phillips@LPL.Arizona.EDU (Cynthia Phillips)
To: ssi_science@noao.edu
Subject: E4 Europa Pwyll mosaic
Cc: mcewen@LPL.Arizona.EDU
Content-Length: 424
I've placed a preliminary mosaic of the 5 global Europa images, including
the crater Pwyll, on rushmore. The files are:
e4lpl_pwyll.cub (isis format)
e4lpl_pwyll.vic (vicar format)
This is a preliminary mosaic, with a photometric correction to enhance
surface features. An improved version with pass 2 data, noise removal,
and improved pointing will be forthcoming.
Thanks,
Cynthia Phillips
phillips@lpl.arizona.edu
################################################################
>From all_hiips-request@noao.edu Wed Feb 12 10:24:36 1997
Date: Wed, 12 Feb 1997 10:09:15 -0700
From: mcewen@pirl.lpl.arizona.edu (Alfred McEwen)
To: all_hiips@noao.edu
Subject: Europa high-res mosaic
X-Sun-Charset: US-ASCII
Content-Length: 826
A preliminary mosaic of the highest resolution E4 Europa
frames (as reconstructed to date) is available
in Vicar format on Rushmore:
/home/ssi/review/E4_hires.mos
8-bit (byte) 1861 lines x 2035 samples
Also available in ISIS format on pirl.lpl.arizona.edu:
E4hiresmos.cub
Orthographic projection, 25 m/pixel scale
frames 3746854*
An improved version will be produced after playback and image
reconstruction at MIPS has been completed.
In upper left corner is a portion of the 600 m/pixel context
frame (374667300) in the same projection but at 250 m/pixel
scale.
Its starting to look like the "flows" seen at 600 m/pixel might
consist of laccolithic intrusions of ice or water forming fractured
domes (or giant pingos), sometimes associated with water
breakouts and collapse into chaotic terrain.
Alfred
#########################################################
>From all_hiips-request@noao.edu Wed Feb 12 14:54:27 1997
Date: Wed, 12 Feb 1997 14:29:44 -0700
From: mcewen@pirl.lpl.arizona.edu (Alfred McEwen)
To: all_hiips@noao.edu
Subject: Europa high-res mosaic, version 2
X-Sun-Charset: US-ASCII
Content-Length: 632
Version #2 with new data:
A preliminary mosaic of the highest resolution E4 Europa
frames (as reconstructed to date) is available
in Vicar format on Rushmore:
/home/ssi/review/E4_hires.mos
8-bit (byte) 2142 lines x 2074 samples
Also available in ISIS format on pirl.lpl.arizona.edu:
/galileo3/review/E4hiresmos.cub
Orthographic projection, 25 m/pixel scale
frames 374685*
An improved version will be produced after playback and image
reconstruction at MIPS has been completed.
In upper left corner is a portion of the 600 m/pixel context
frame (374667300) in the same projection but at 250 m/pixel
scale.
Alfred
From: MX%"mcewen@pirl.lpl.arizona.edu" 13-FEB-1997 17:58:02.88
To: MX%"all_hiips@noao.edu"
Subj: Europa high-res mosaic, version 3
Version #3 with new data:
A preliminary mosaic of the highest resolution E4 Europa
frames (as reconstructed to date) is available
in Vicar format on Rushmore:
/home/ssi/review/E4_hires.mos
8-bit (byte) 2035 lines x 1965 samples
Also available in ISIS format on pirl.lpl.arizona.edu:
/galileo3/review/E4hiresmos.cub
Orthographic projection, 25 m/pixel scale
frames 374685*
An improved version will be produced after playback and image
reconstruction at MIPS has been completed.
Alfred
From: MX%"phillips@LPL.Arizona.EDU" 14-FEB-1997 12:09:16.16
To: MX%"ssi_science@noao.edu"
Subj: Merged Europa (E4-G2) Pwyll mosaic
I've placed a merged E4 - G2 mosaic on rushmore.jpl.nasa.gov in
/home/ssi/review called e4g2lpl_pwyll.vic (vicar format). The
file is also available on pirl.lpl.arizona.edu in /galileo3/review,
as e4g2lpl_pwyll.cub (isis format).
This image is a mosaic consisting of the G2 global violet image s0360063913_2,
merged with 6 E4 frames: the five clear-filter 1.2 km/pix images
s0374649000 through 9052, and the higher-resolution context frame
s0374667300.
The image has updated pointing based on a limb fit to the G2 image -- this
pointing information should be more accurate than previous images
which were tied to the Voyager basemap. The overall resolution of the
image is 1.2 km/pixel.
The images have also been photometrically corrected.
Thanks,
Cynthia Phillips
phillips@lpl.arizona.edu
From: MX%"mcewen@pirl.lpl.arizona.edu" 14-FEB-1997 12:12:55.46
To: MX%"all_hiips@noao.edu"
Subj: Europa high-res mosaic, version 4
Version #4 including 374685126.5 (which I missed--thanks to
Jeff Moore for pointing out that omission).
A preliminary mosaic of the highest resolution E4 Europa
frames (as reconstructed to date) is available
in Vicar format on Rushmore:
/home/ssi/review/E4_hires.mos
8-bit (byte) 2090 lines x 2541 samples
Also available in ISIS format on pirl.lpl.arizona.edu:
/galileo3/review/E4hiresmos.cub
Orthographic projection, 25 m/pixel scale
frames 374685*
An improved version will be produced after playback and image
reconstruction at MIPS has been completed.
Alfred
From: MX%"geissler@amalthea.lpl.arizona.edu" 14-FEB-1997 17:10:29.18
To: MX%"ssi_science@noao.edu"
Subj: Colorized Pwyll mosaic
I have merged Cynthia Phillips' E4ESGLOMAP mosaic with the G2 color data and
placed the result on rushmore in /home/ssi/review.
e4lpl_pwyll_color.vic is in VICAR format with R,G,B = bands 1,2,3
e4lpl_pwyll_color.jpg is a losslessly compressed jpeg version, also
available on http://pirl.lpl.arizona.edu/hiips/Europa_Color/Images.html
Cheers, Paul "Ted Turner" Geissler
geissler@pirl.lpl.arizona.edu
From: MX%"brt@GAS.UUG.Arizona.EDU" 14-FEB-1997 17:53:11.18
To: MX%"ssi_science@noao.edu"
Subj: E4 lineament reconstruction
Europaphiles,
Two images of a reconstruction of the broad lineament diagonally crossing
the northern portion of the E4 high resolution mosaic are available in tiff
format on rushmore:
home/ssi/review/E4hiresmos.cp.1.rec.2.tif
and
home/ssi/review/E4hiresmos.cp.1.tif
The first image is after the reconstruction, i.e. the older landscape.
The reconstruction joins the two opposing sides of the lineament along the
prominent midline groove. Digital cuts were made along two other prominent
grooves positioned symmetrically to each side of that midline or along
reasonable extensions of those alignments.
Matchups of older linear features are improved markedly by this
reconstruction.
The reconstruction removes most of the lineament although some
outboard portions are left intact. This may suggest that this version of
the reconstruction is not completely accurate, or that the remaining highland
is a structural feature not formed by the same processes that created
the removed part. Regardless, based on the geometry of the reconstruction,
it is likely that the removed portion of the lineament - the major part - is
extensional in origin.
Randy Tufts
From: MX%"phillips@LPL.Arizona.EDU" 25-FEB-1997 11:55:25.35
To: MX%"ssi_science@noao.edu"
Subj: Updated E4 Europa mosaics
I've placed two updated E4 Europa trailing hemisphere mosaics on
rushmore, in /home/ssi/review. The first is a mosaic of the five
E4 global context frames, including the crater Pwyll and the new
Pass 2 data. The files are:
e4lpl_pwyll2.cub (ISIS format)
e4lpl_pwyll2.vic (VICAR format)
The second mosaic includes the five images in the pwyll2 mosaic,
merged with a G2 violet frame and two G1 clear-filter images, as
well as the E4 hi-res context frame s0374667300. The bulge on the right
side of the image is due to the fact that the underlying full-disk G2 image
has been reprojected to the sub-s/c point of the E4 images, so valid
G1 data appears to protrude off the edge of the apparent limb, but
actually goes to the edge of the real limb. The files for this mosaic
are:
e4g2g1lpl_pwyll.cub (ISIS format)
e4g2g1lpl_pwyll.vic (VICAR format)
These images have had their pointing adjusted through a limb fit to
the full-disk G2 image, have been photometrically corrected, and
have had noise due to radiation hits removed.
Please contact me with any questions or comments about these images.
Thanks,
Cynthia Phillips
phillips@lpl.arizona.edu
From: MX%"geissler@amalthea.lpl.arizona.edu" 25-FEB-1997 14:03:47.46
To: MX%"ssi_science@noao.edu"
Subj: updated colorized E4 mosaic
I've placed an updated version of Cynthia Phillips' E4 global mosaic
merged with G2 color data on rushmore in /home/ssi/review.
e4lpl_pwyll_color_final.vic is in VICAR format with R,G,B = bands 1,2,3
e4lpl_pwyll_color_final.jpg is a losslessly compressed jpeg version, also
available on http://pirl.lpl.arizona.edu/hiips/Europa_Color/Images.html
R,G,B = 968, GRN, VIO
Paul Geissler
geissler@pirl.lpl.arizona.edu
--------------------------------------------------------------------------------
From: MX%"KLEMASZEWSKI@atlas.la.asu.edu" 5-MAR-1997 12:40:35.80
To: MX%"ssi_science@noao.edu"
Subj: new e6 europa mosaics
An updated version of e6_drklin.vic is available on rushmore in
/home/ssi/review that includes the sixth frame and the updated fifth frame.
A mosaic of the two e6 crater frames is called....e6_crater.vic
enjoy,
Klem
>From ssi_science-request@noao.edu Thu Mar 6 17:46:32 1997
Date: Thu, 6 Mar 1997 17:44:01 -0700 (MST)
From: KLEMASZEWSKI@atlas.la.asu.edu
To: ssi_science@noao.edu
Cc: greeley@asu.edu, sullivan@asu.edu, klem@asu.edu
Subject: e6 bright plains mosaic
Content-Length: 277
A mosaic of the E6BRTPLN frames is available on /home/ssi/review. It
is called e6_brtpln.vic The disruption/rafting is incredible!
I also updated e6_drklin.vic with the latest udrs, and put more of a
stretch on e6_crater.vic to bring out the ejecta around the crater.
Klem
--------------------------------------------------------------------------------
>From ssi_science-request@noao.edu Wed Mar 12 12:46:38 1997
Date: Wed, 12 Mar 1997 12:42:07 -0700 (MST)
From: KLEMASZEWSKI@atlas.la.asu.edu
To: ssi_science@noao.edu
Subject: e6plains02 mosaic
Content-Length: 344
A preliminary mosaic of the e6 plains02 observation is available on
rushmore (/home/ssi/review): e6_plains02_v1.vic
As no tiepoints exist to tie the images together top-to-bottom, I
eyeballed their relative locations--as you will see.
I will use version numbers (_v2.vic) to update this and other mosaics
to help keep things straight.
Klem
---------------------------------------------------------------------------
>From ssi_science-request@noao.edu Mon Mar 10 11:19:48 1997
Date: Mon, 10 Mar 1997 11:16:00 -0700 (MST)
From: KLEMASZEWSKI@atlas.la.asu.edu
To: ssi_science@noao.edu
Cc: greeley@asu.edu, sullivan@asu.edu, klem@asu.edu
Subject: E6 mosaics available
Content-Length: 304
The following mosaics are available on ASU's gll_hiips site:
e6_crater02.vic
e6_craters.vic --this mosaic shows the placement of the crater02 observation
within the crater01 mosaic.
e6_drklin.vic (updated)
e6_brtpln.vic (updated)
I will put these on Rushmore when space becomes available.
Klem
###################################################################
>From ssi_science-request@noao.edu Wed Mar 12 19:41:35 1997
Date: Wed, 12 Mar 1997 19:37:27 -0700 (MST)
From: KLEMASZEWSKI@atlas.la.asu.edu
To: ssi_science@noao.edu
Subject: E6 Europa mosaic updates
Content-Length: 176
The following mosaics have been updated and are on rushmore:
e6_brtpln_v3.vic --three out of the four frames are complete
e6_crater02_v3.vic --all frames are complete
Klem
###################################################################
From: MX%"KLEMASZEWSKI@atlas.la.asu.edu" 26-MAR-1997 11:40:55.34
To: MX%"ssi_science@noao.edu"
Subj: new e6 drklin mosaic
The latest version is on Rushmore in home/ssi/review: e6_drklin_v4.vic
Klem
--------------------------------------------------------------------------------
From: MX%"KLEMASZEWSKI@atlas.la.asu.edu" 26-MAR-1997 11:46:38.36
CC: MX%"ssi_science@noao.edu"
Subj: Re: Europa wedges regional mosaic
Randy,
the C3 wedges image set into a reprojected Voyager frame is on Rushmore.
The file name is: e3wedges_vgr.vic
Jim
--------------------------------------------------------------------------------
>From geissler@pirl.lpl.arizona.edu Wed Mar 26 17:14:54 1997
To: eliz@noao.edu
Subject: G2 global color
Hi Elizabeth,
The Europa G2 global color image is on /home/ssi/review as
g2lpl_global_color.vic Band order is (R,G,B) = (1,2,3).
Cheers, Paul
--------------------------------------------------------------------------------
From: MX%"phillips@pirl.lpl.arizona.edu" 3-APR-1997 10:30:14.21
To: MX%"ssi_science@noao.edu"
Subj: Europa E6 drklin mosaic
Europa E6 DRKLIN mosaic
Vicar and isis format available on: rushmore.jpl.nasa.gov
/home/ssi/review/e6lpl_drklin.cub (ISIS format)
/home/ssi/review/e6lpl_drklin.vic (VICAR format)
Also available on: pirl.lpl.arizona.edu (contact joep@pirl.lpl.arizona.edu
if you need an account)
/galileo3/review/e6lpl_drklin.cub (ISIS format)
/galileo3/review/e6lpl_drklin.vic (VICAR format)
On both rushmore and pirl, this readme is also available
e6lpl_drklin.readme
Description: Mosaic of SSI E6 clear-filter images of Europa
Projection: Orthographic
kilometers/pixel scale: 180 m/pix
latitude range: 5, 19
longitude range: -95, -80
center latitude of projection: -2
center longitude of projection: -125
bit type: 8 (byte)
number of lines: 2112
number of samples: 2119
size: 4.5 megabytes (uncompressed)
frame numbers: s0383713700,s0383713713,s0383713726,s0383713739,
s0383713752,s0383713765
Description: Latest version of the 6-frame E6 dark lineament mosaic.
This mosaic includes all the cutout windows played back in pass 2, and
is complete - no gaps! The pointing has been tied to my G2 limb fit
solution, and the images have been orthographically reprojected to the
sub-spacecraft latitude and longitude, and photometrically corrected
(lunar-lambert function, L=0.8).
Images processed and mosaiced by Cynthia Phillips, phillips@lpl.arizona.edu
--------------------------------------------------------------------------------
From: MX%"geissler@amalthea.lpl.arizona.edu" 30-APR-1997 06:10:03.29
To: MX%"ssi_science@noao.edu"
Subj: Tyre Macula composites
Hello,
A preliminary version of the Europa G7 Tyre Macula color composite is
available in /home/peg/G7 on rushmore as Tyre.vic, and on PIRL in
/galileo3/review/tyre.cub (band order for both is B,G,R = 1,2,3).
The images may also be seen at url:
http://pirl.lpl.arizona.edu/hiips/Europa_Color/Images.html
Cheers, Paul
--------------------------------------------------------------------------------
>From phillips@LPL.Arizona.EDU Wed May 14 15:02:17 1997
To: belton@noao.edu, carr@astmnl.wr.usgs.gov, greeley@atlas.la.asu.edu,
mcewen@LPL.Arizona.EDU
Subject: Potential Europa cover image
I've placed a tiff of the merged E6 drklin color image I showed at the
Tucson team meeting on rushmore. It's in /home/ssi/review,
called e6lpl_colordrklin.tiff.
I'm still working on adjusting the colors etc. on this image, but I think
this is a good working version. It can be cropped or enhanced as desired.
Let me know if there are any questions, problems, etc with this image.
I think it would make a great cover.
Thanks,
Cynthia
phillips@lpl.arizona.edu
--------------------------------------------------------------------------------
From: MX%"geissler@amalthea.lpl.arizona.edu" 2-JUL-1997 17:45:28.11
To: MX%"ssi_science@noao.edu"
Subj: Europa eclipse image
A comparison of the G7 Europa eclipse image with combined Galileo and
Voyager albedo is available on rushmore in directory /home/ssi/review/
in VICAR format as "airglow.vic" and jpeg'ed as "airglow.jpg".
These files can also be retrieved from url:
http://pirl.lpl.arizona.edu/hiips/Europa_Color/eclipse/
(this is a"secure" location, so let me know if you have any trouble
accessing it).
Cheers, Paul Geissler
geissler@pirl.lpl.arizona.edu
--------------------------------------------------------------------------------
>From jry@potato.JPL.NASA.GOV Tue Jul 8 13:31:30 1997
To: eliz@noao.edu
Subject: Eclipse images
I've put the images on rushmore in /home/jry/ema. I have a file called
readme.txt which has info about the images. All the images except 2 are north
down. There is one Europa eclipse with the others. There are also
G1ISGLOMON03 images with the eclipse images. Let me know if you have any
questions.
--jan
7/8/97
North is down
EUROPA
G7ESECLIPS01 S0389522146.UM0 (clr) CONV=0.00001 (100,275) -> (0,255)
CONV=r
where r specifies the output DN scale in number of nanowatts per cm**2 per
steradian per nanometer wavelength per DN.
S2 K
r = e * -------- * ---
A2(t-to) Ko
where
A2 = number of nanowatts per cm**2 per steradian per nanometer
wavelength per DN.
e = z(d - dc)
where z is retrieved from the Radiometric File and dc is retrieved
from the Dark-Current File.
S2 is the filter-dependent conversion factor from ft-Lamberts
to units of nanowatts/cm**2/steradian/nanometer.
t = commanded exposure time of the input image (msec).
to = line-dependent shutter offset.
K = system gain constant for the gain-state of the image.
Ko = system gain constant for the calibration file gain-state.
--------------------------------------------------------------------------------
Date: Wed, 30 Jul 1997 14:33:33 -0700 (MST)
From: Elizabeth Alvarez del Castillo
Message-Id: <199707302133.OAA29353@ursa.tuc.noao.edu>
To: mfishburn@noao.edu
Subject: Europa products
Status: R
I've put a file, e6.syncolor_blue2.tiff.gz, on Ursa in /u2/eliz/ADMIN/junk
It's the file which was submitted as a cover to Nature for the upcoming
issue with Galileo papers. It was processed by Cynthia Phillips.
Let's add this to our Europa products on Flora, okay?
It's similar to one we have there already, but I know that this one
is the final version. The other was an interim version I believe.
-Eliz.
--------------------------------------------------------------------------------
Date: Fri, 8 Aug 1997 13:27:36 -0700 (MST)
From: Elizabeth Alvarez del Castillo
Message-Id: <199708082027.NAA00839@ursa.tuc.noao.edu>
To: mfishburn@noao.edu
Subject: Please add to Flora SSI account
Status: RO
I put the file 01797icerafts.tif on Flora in odin:[ssi.europa.products]
It's the new version of
Europa E6 Ice Rafts in b/w
P48526 PIA00591 1997-04-01 Europa Ice Rafts
The new version has the missing lines fixed and the processing mistake
(double M-type feature) in the lower left corner fixed.
When you get a chance would you follow up on the archiving of it
into our system ... confirm that the privileges are correct and add
this email and the file name to the readme file, etc..
Thanks,
-Eliz.
--------------------------------------------------------------------------------
>From ssi_science-request@noao.edu Fri Aug 1 06:42:34 1997
Date: Fri, 1 Aug 1997 15:42:08 +0200 (CET-DST)
From: Tilmann Denk
To: ssi_science@noao.edu
Cc: DENK@kappa.pe.ba.dlr.de
Subject: New files on Rushmore
Status: RO
Content-Length: 3877
X-Lines: 85
Hello,
the following files have been added Rushmore's /home/ssi/review directory:
(b/w)
C9DLR_Amalthea.vic
C9DLR_GALSATS_100X75KM.vic
(color)
C3DLR_Callisto_Color_2.vic
C9DLR_CallistoScales.vic
C9Paul_G2Tilmann_Europa.vic
G7DLR_EuropaFeatures_1.vic
G7DLR_EuropaFeatures_2.vic
G7DLR_EuropaFeatures_3.vic
Short descriptions are given below. Enjoy it.
Liz: These images might be used for cat A or B press releases.
Viele Gruesse from Berlin,
Tilmann
------------------
B/w images:
The C9DLR_Amalthea.vic file shows the regular Amalthea circle update, now
including C9 data.
C9DLR_GALSATS_100X75KM.vic shows a comparison of Galilean satellite's
landscapes at a scale of about 180 meters per pixel. Each part is about
100x75 km wide. The Io image (top left) is from Voyager 1 (FDS 16392.27,
but enlarged because the original resolution is only about 400 m/pxl). The
Europa image (top right) is from the E6 dark linea 01 mosaic (out of RIM
s0383713765.2), the Ganymede data (lower left) are from the G7 Nicholson
Regio mosaic (RIM s0389923026.2), and the Callisto part (lower right) is
from C9 crater statistics mosaic (RIMs s0401505500.1 and 526.1). The very
different landscapes of the four GalSats are shown: Io with its
volcanically shaped and partly rather featureless surface, Europa with the
ridges down to the limit of resolution and very few impact craters,
Ganymede with a lot of craters and its tectonically deformed surface, which
appears to show a different style, compared to Europa; and finally Callisto
with its smooth and (in my opinion) extremely beautiful surface, formed by
impact craters, a strange powder, and nothing else(??).
Color images:
The C3DLR_Callisto_Color_2.vic frame is an improvement over the previous
version C3DLR_Callisto_Color_1. It shows Callisto C3 color data "slightly"
enhanced (left), "heavily" enhanced (center), and a false color image,
containing the violet frame, a violet-to-Nir ratio, and "889 absorption"
file for the different channels blue, green, and red.
The C9DLR_CallistoScales.vic shows a comparison of different scales on
Callisto. The scale bar in each of the four parts is 10x different (smaller
or larger) than for the previous or following image. The scales are
10 km/pxl, 1 km/pxl, 100 m/pxl, and 10 m/pxl. The top image is part of a
global Voyager 2 color frame at 10 km/pxl, below this is a part of C3
Asgard at 1 km/pxl (b/w), below this a part of C9 crater data at 100 m/pxl,
and at the bottom a part of the C3 Catena frame (enlarged to 10 m/pxl).
The C9Paul_G2Tilmann_Europa.vic image shows a comparison of the two global
Europa images from Galileo, the G2 and the C9 frames. The G2 image is my
product, while for the C9 frame, the version from Paul Geissler has been
used. The colors of both have been adjusted so that the bluish hues at the
poles look somewhat similar; but it has to be kept in mind that the used
filters for both frames are different (due to data lacks). The "Macula"
called Callanish is visible in both images as a brownish spot. Despite the
different filters, it is obvious that the mottled terrain on the leading
side has a different color compared to the mottled terrain on the trailing
side. The "huge, greyish wedge" to the right of the center of the C9 image
looks unusual. Ron, Rob: This might be a worth target for a closer look on
E25A?!
The G7DLR_EuropaFeatures_*.vic files contain a sampling of 15 different
features and landscapes on Europa, including ridges, triple bands, craters,
and many others. In version "1", the features and a description are shown
in the DLR design. Version "2" is the same without DLR logo. Version "3"
shows the "bones"; Liz: You might cut this into 15 pieces a 380x380 pixels
and fill the Galileo Web page for about half a month with it (if you want
to do so).
------------------------------------------------------------------------
Date: Fri, 31 Oct 1997 11:29:55 -0700
From: phillips@pirl.lpl.arizona.edu (Cynthia Phillips)
Message-Id: <199710311829.LAA04163@deimos.PIRL>
To: ssi_science@noao.edu
Subject: E6 Europa bright plains mosaic
Status: R
I've finally finished up a mosaic of the E6brtpln2 images from orbit
E6. The readme is attached: files are available on Rushmore and on
PIRL as indicated.
The pointing / coordinate system used for these images is my released
global basemap version. Look for a new basemap, and redone mosaics,
soon which use an updated RAND pointing / coordinate system.
Let me know if you have any questions or problems with these files.
There's a version with just the high-resolution images, and another
version with them mosaiced into a lower-resolution context frame from
the DRKLIN sequence.
Enjoy!
--Cynthia
phillips@lpl.arizona.edu
E6 Europa Bright Plains 2 Mosaic and context mosaic
VICAR format: on Rushmore.jpl.nasa.gov
/home/ssi/review/E6_Europa_brtpln2.vic
/home/ssi/review/E6_Europa_brtpln2_cxt.vic
(mosaicked into context frame)
(warning: files deleted from Rushmore after 2 weeks due to restricted
disk space.)
ISIS format: on pirl.lpl.arizona.edu
/galileo3/mosaics/Europa/E6_Europa_brtpln2.cub
/galileo3/mosaics/Europa/E6_Europa_brtpln2_cxt.cub
(mosaicked into context frame)
(contact joep@pirl.lpl.arizona.edu if you need an account on pirl)
E6_Europa_brtpln2.README (this file, on both Rushmore and pirl)
E6_Europa_brtpln:
Description: SSI high-res frames mosaicked together
Projection: Orthographic
kilometers/pixel scale: 0.021
latitude range: 13.61 to 15.85
longitude range: -87.09 to -85.74 (degrees W)
center latitude of projection: -11.25
center longitude of projection: -87.76
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 2621
number of samples: 1711
size: 4.5 megabytes (uncompressed)
SSI frame numbers: s0383718600.2,s0383718600.7.s0383718600.8,
s0383718613.1,s0383718613.4,s0383718626.2,s0383718626.3,
s0383718639.2,s0383718639.3,s0383718652.2,s0383718652.3
ISIS procedures: vicar2isis, naiflab, ssical, planorth, photom l=0.8,
stretch, mosaic
Image Processing by: Cynthia Phillips, phillips@lpl.arizona.edu
E6_Europa_brtpln2_cxt:
Description: SSI high-res frames mosaicked onto Galileo
lower-resolution context frame for regional context.
Projection: Orthographic
kilometers/pixel scale: 0.021
latitude range: 13 to 17
longitude range: -88 to -84.8 (degrees W)
center latitude of projection: -11.25
center longitude of projection: -87.76
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 4674
number of samples: 4045
size: 19 megabytes (uncompressed)
SSI frame numbers: s0383718600.2,s0383718600.7.s0383718600.8,
s0383718613.1,s0383718613.4,s0383718626.2,s0383718626.3,
s0383718639.2,s0383718639.3,s0383718652.2,s0383718652.3,
s0383713700.1,s0383713701.1
ISIS procedures: vicar2isis, naiflab, ssical, planorth, photom l=0.8,
stretch, mosaic
Image Processing by: Cynthia Phillips, phillips@lpl.arizona.edu
------------------------------------------------------------------------
>From ssi_science-request@noao.edu Mon Nov 10 10:10:40 1997
Received: from noao.edu (root@noao.edu [140.252.1.54])
by orion.tuc.noao.edu (8.8.6/8.8.6/SAG-11Jul96) with ESMTP id KAA20040
for ; Mon, 10 Nov 1997 10:10:39 -0700 (MST)
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Mon, 10 Nov 1997 10:04:18 -0700 (MST)
Date: Mon, 10 Nov 1997 18:04:12 +0100 (CET)
From: Tilmann Denk
To: eliz@noao.edu
CC: ssi_science@noao.edu, DENK@kappa.pe.ba.dlr.de
Message-Id: <971110180412.2280011b@kappa.pe.ba.dlr.de>
Subject: RE: Releases
Status: RO
Hello Liz,
> I'll still need satellites releases for a few weeks....
> *** Does anyone have anything that they're preparing!?! ***.....
> Please send me any further Cat. B releases as soon as possible......
following your request, I put a file named
e4dlr_gem_targets.vic
on Rushmore's /home/ssi/review directory that might be used for release
purposes. It is a b/w compilation of eight Europan surface areas at approx.
1.5-2 km/pxl that shows SSI-target examples during GEM orbits E11-E19.
It does not contain any unreleased data: The images are either from G1,
from press-released images from G2 or E4, or from Voyager 2 data.
Short description:
Examples for SSI target areas during GEM, ordered by orbit.
Top row, from left:
- E11; Triple Bands and dark spots ("lenticulae") (from G1 data;
1.6 km/pxl).
- E12; Conamara Chaos ("raft terrain") (from E4 data; 1.6 km/pxl).
- E14; crater Mannann'an (from G1 data; 1.6 km/pxl).
- E15; Cilix (from G1 data; 1.6 km/pxl).
Bottom row, from left:
- E16; Agenor Linea and Thrace Macula (from Voyager 2 data; 2 km/pxl).
- E17; South polar terrain (from Voyager 2 data; 2 km/pxl).
- E18; Rhadamanthys Linea (from G1 data; 1.6 km/pxl).
- E19; Europa at very high phase angle (simulated image out of G2 data,
7 km/pxl).
For I25, the only other orbit with Europa geology images planned, the left
("Paul") part of image C9Paul_G2Tilmann_Europa.vic might be used to
complete the collection.
Enjoy it!
Viele Gruesse from Berlin,
Tilmann
>From KADEL@dione.la.asu.edu Mon May 18 10:01:46 1998
Subject: gem overview image montage
I just finished putting the arrows onto the image montage. It is on the
atlas.la.asu.edu server, where you should be able to ftp it over to your
place. I have two versions there, one transferred as MacBinary, and the
other as Raw data. One or the other will work, not sure which, but I
would try this file first:
e4dlr_gem_targets.tif
That's the one I fetched as Raw data from our Mac. If that doesn't come up
as a viable tiff image, then try the second image:
e4dlr_gem_targets2.tif
------------------------------------------------------------------------
>From ssi_science-request@noao.edu Tue Nov 18 21:01:28 1997
Received: from noao.edu (root@noao.edu [140.252.1.54])
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for ; Tue, 18 Nov 1997 21:01:27 -0700 (MST)
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for ; Tue, 18 Nov 1997 20:59:45 -0700 (MST)
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X-Sender: Geoffrey_Clark_Collins@postoffice.brown.edu
Message-Id:
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Date: Tue, 18 Nov 1997 22:59:25 -0400
To: ssi_science@noao.edu
From: Geoffrey Collins
Subject: E11 gray band reconstruction
Status: R
Graybandophiles,
We have done a quick Photoshop reconstruction of the gray band in the new
E11 Europa regional frames (s0420619252 and 9265). This band is the one
which appears as a distinctive sickle-shaped feature in the G1 Europa
mosaic. Our reconstruction is available on Rushmore for your viewing
pleasure in the /home/ssi/review directory as "e11_brn_grayband.vic".
The reassembled fit of preexisting structures is extremely good, suggesting
complete separation (spreading) has created the feature. It looks like the
reassembled western portion of the band has spread apart in the N-S
direction, and it has rotated by about 8.5 degrees counter-clockwise. The
band's boundaries are remarkably rounded, rather than angular or sharply
cuspate. Generally smooth, lightly striated material fills the band,
presumably formed by extrusion of low viscosity material; rough symmetry of
striations within the band suggest progressive opening. Some younger domes
and high-relief ridges cut the band.
An orthogonally trending ridge in the western image terminates within the
gray band and may be related in origin. Along much of its length, the edge
of the gray band is defined by a narrow delimiting structure, which is a
ridge in some instances and a trough in others. In the G1 Europa mosaic,
this gray band seems to cut another N-S trending gray band; this older gray
band is seen at high-res as the N-S set of lineaments that intersects the
E-W gray band along the boundary of the two Galileo images.
To the east, the boundaries of the gray band do not close in the same
direction as the reconstructed portion we have analysed. When playback is
complete, it will be possible to determining the pole(s) of opening for the
constituent portions of this band.
- Geoffrey Collins and Bob Pappalardo
------------------------------------------------------------------------
>From ssi_science-request@noao.edu Thu Nov 20 01:11:34 1997
Date: Thu, 20 Nov 1997 01:10:01 -0700 (MST)
From: Paul Geissler
To: ssi_science@noao.edu
Subject: E11 Europa color composites
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Content-Length: 350
Status: RO
X-Lines: 8
Registered and filtered versions of the E11 COLORS01 and COLORS02
images are available on rushmore as /home/ssi/review/e11lpl_colors0*.vic
and on pirl as /galileo3/review/Europa/e11lpl_colors0*.cub
False color pictures in lossless-jpeg format can be downloaded from
http://pirl.lpl.arizona.edu/hiips/Europa_Color/Images.html
Cheers, Paul Geissler
------------------------------------------------------------------------
>From ssi_science-request@noao.edu Mon Nov 24 11:00:20 1997
Date: Mon, 24 Nov 1997 18:44:55 +0100 (CET)
From: Tilmann Denk
To: ssi_science@noao.edu
Cc: DENK@kappa.pe.ba.dlr.de
Subject: E18 Europa flyby
Status: RO
Content-Length: 1557
X-Lines: 29
Dear friends of the GEM, 24-NOV-1998
last Sunday's E18 flyby of the Galileo spacecraft was its 10th close
Europa flyby since the beginning of the nominal tour in 1995. The new frame
on Rushmore's /home/ssi/review directory,
e18dlr_gll_flyby.tiff
illustrates this celebration event, that also marked Galileo's very last
targeted dayside Europa flyby and the most northern pass over the Europan
surface. The frame shows the spacecraft busily imaging intriguing
Rhadamanthys Linea which might be a "not-yet evolved" or "baby" Triple
band. Just minutes before, Galileo passed over heavily mottled terrain, an
area that is believed to be geologically younger than the heavily ridged
terrain which can be seen in light-bluish hues to the upper left.
Over the horizon, as seen from the spacecraft, Io and Jupiter are rising.
Io, the smaller of these two celestial footballs, is known as the most
active volcano body in the solar system and target for Galileo's two
suicidal flybys in fall next year. Jupiter, the largest and most massive
planet of the Solar System, holds all these circling bodies (including
Galileo) together for the purpose that flight engineers on Earth are
able to repeatedly target the spacecraft in a scientifically and
public-outreachly useful manner. It might also be the planet that will
guzzle the Galileo orbiter possibly some millenia after end-of-mission,
currently scheduled for January 2000. (Jupiter already ate Galileo
part 1 - the probe - in December 1995.)
- end -
-------------------------------------------------------------------------
>From ssi_science-request@noao.edu Wed Nov 26 12:29:05 1997
Date: Wed, 26 Nov 97 12:20:25 MST
From: phillips@LPL.Arizona.EDU (Cynthia Phillips)
To: ssi_science@noao.edu
Subject: Preliminary E11 hires Europa mosaic
Content-Length: 427
Status: RO
X-Lines: 14
I've made a preliminary mosaic of the new E11 high resolution Europa
images. The mosaic includes frames s0420626700 through 6765, and
is in an orthographic projection. Resolution is 32.7 meters / pixel.
Vicar and isis versions are available on PIRL, in
/galileo3/review/Europa/E11_Europa_hires.vic or .cub,
and on rushmore in /home/ssi/review/E11_Europa_hires.vic or .cub.
Enjoy!
--Cynthia
phillips@lpl.arizona.edu
---------------------------------------------------------------------
>From ssi_science-request@noao.edu Sat Dec 6 17:55:10 1997
Date: Sat, 6 Dec 97 17:53:26 MST
From: phillips@LPL.Arizona.EDU (Cynthia Phillips)
To: ssi_science@noao.edu
Subject: E11 Europa hires mosaic, V.2
Status: O
Content-Length: 594
X-Lines: 21
I've put a new version of my hires E11 Europa mosaic on
rushmore and on pirl.lpl.arizona.edu. This version includes
images s0420626700 through 6800, orthographic projection,
resolution 32.7 m/pixel, photometrically corrected (lunar
lambert, l=0.8).
on rushmore.jpl.nasa.gov, it's:
/home/ssi/review/E11_Europa_hires2.cub (isis version)
/home/ssi/review/E11_Europa_hires2.vic (vicar version)
on pirl.lpl.arizona.edu, it's:
/galileo3/review/Europa/E11_Europa_hires2.cub (isis version)
/galileo3/review/Europa/E11_Europa_hires2.vic (vicar version)
Enjoy!
--Cynthia
phillips@lpl.arizona.edu
------------------------------------------------------------------
>From ssi_science-request@noao.edu Sun Dec 7 08:12:38 1997
Date: Sun, 7 Dec 1997 08:10:31 -0700 (MST)
From: Randy Tufts
To: ssi_science@noao.edu
Cc: Randy Tufts
Subject: E11 Europa reconstruction
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Status: RO
Content-Length: 776
X-Lines: 24
Dear Europaphiles,
The wide, EW-trending "band" near the bottom of the revised E11 high res
mosaic by Cynthia Phillips reconstructs nicely. The reconstruction is
unambiguous because older lineaments trend at various orientations. The
actual relative motion was right-oblique. The right-lateral component is
9.7km, the dilational component is 12.8km, and the total oblique distance
is 16.1km. The reconstruction involved only a translation.
I have posted a "Not ready for real time" version on:
rushmore.jpl.nasa.gov
/home/ssi/review/
E11_Europa_hires2.tif.L1.copy
and
E11_Europa_hires2.tif.L3.copy
or at PIRL on
/galileo3/review/Europa/
Thanks to Greg Hoppa for noticing the possible reconstruction, and Rob and
Herb for getting the rest of the image.
Randy
----------------------------------------------------------------------
>From ssi_science-request@noao.edu Wed Dec 31 21:08:58 1997
Date: Wed, 31 Dec 1997 21:05:10 -0700 (MST)
From: Paul Geissler
To: Bob Pappalardo
Cc: ssi_science@noao.edu
Subject: Re: E12 SSI UDRs
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Status: RO
Content-Length: 541
X-Lines: 14
Hi Bob et al.,
Preliminary versions of the Agenor color image from E12 are on pirl
as /galileo3/review/Europa/e12_glocol.cub and in jpg format at url
http://pirl.lpl.arizona.edu/hiips/Europa_Color/E12/. I have not yet
been able to navigate them (they're not yet in the ISIS spice table)
but will do so as soon as possible. An interesting new observation is
that Agenor has a relatively low 968/GRN ratio! - I guess the Icarus
lineaments paper is due for revision already...
Happy New Year!
Paul Geissler
geissler@pirl.lpl.arizona.edu
Editor's Note: The images from the URL site are: 756-grn-vio_s.jpg
968-grn-vio_s.jpg
968_on_grn.jpg
------------------------------------------------------------------
>From ssi_science-request@noao.edu Sat Jan 10 20:35:41 1998
From: KLEM@dione.la.asu.edu
Date: Sat, 10 Jan 1998 20:32:00 -0700
To: ssi_science@noao.edu
Subject: prelim. E12 drklin color mosaic
Status: RO
Content-Length: 395
X-Lines: 13
A preliminary mosaic of the E12DKLNCL frames is available on
rushmore in /home/ssi/review. The files, e12drklin.red,
e12drklin.grn and e12drklin.blu correspond to the 756, GRN and
VIO frames, respectively.
The images have been photometrically corrected and orthographically
reprojected to 0.060 m/pixel (from ~180 m/pixel ) with north to
the top -- they are about 9.45 Mb each.
enjoy!
Klem
====================================================================
>From ssi_science-request@noao.edu Wed Jan 14 13:32:39 1998
From: Roland.Wagner@dlr.de
Date: Wed, 14 Jan 1998 21:26:56 +0100 (CET)
To: ssi_science@noao.edu
Subject: 11ESREGMAP mosaic on rushmore
Content-Length: 1744
Status: RO
X-Lines: 53
********************************************************************************
Berlin, 14-Jan-1998
Dear Colleagues,
We have put a Mercator mosaic of 11ESREGMAP01 (map scale = 0.22 km/pxl) on
rushmore. The file is located in:
/home/ssi/review
File name is dlr_e11regmap.mos (Vicar format with map labels).
For those who have an account at ASU on atlas.la.asu.edu, the file may also be
retrieved from directory rhea:[wagner.to_rushmore]. Protection is open.
The mosaic was enhanced with a highpass filter of 251x251 filter box size.
If it appears to dark on other screens, use a logarithmic stretch to make it
look brighter (e.g. min=0 max=255 curve = about 100 - 300).
With the LPSC stress being over sooner or later, I hope I also can provide this
mosaic in context with a medres VGR/GLL mosaic until Friday !
Enjoy and best regards ! -- Roland Wagner
PS: Again we'd like to remind you that our e-mails at DLR will change. The
general form will be: [First_name].[Second_name]@dlr.de, e.g.:
Tilmann.Denk@dlr.de, Roland.Wagner@dlr.de, Gerhard.Neukum@dlr.de,
Uli.Koehler@dlr.de ...
--------------------------------------------------------------------------------
MAP LABEL:
------------
TARGET_BODY='EUROPA'
MAP_PROJECTION_TYPE='MERCATOR'
COORDINATE_SYSTEM_NAME='PLANETODETIC'
POSITIVE_LONGITUDE_DIRECTION='WEST'
A_AXIS_RADIUS=1565.0
B_AXIS_RADIUS=1565.0
C_AXIS_RADIUS=1565.0
BODY_LONG_AXIS=0.0
MAP_SCALE=0.2199999988079071
CENTER_LATITUDE=0.0
CENTER_LONGITUDE=240.0
SPHERICAL_AZIMUTH=0.0
CARTESIAN_AZIMUTH=0.0
LINE_PROJECTION_OFFSET=1164.0
SAMPLE_PROJECTION_OFFSET=706.0
================================================================================
>From ssi_science-request@noao.edu Wed Jan 14 15:06:04 1998
Date: Wed, 14 Jan 1998 14:59:33 -0700
From: phillips@pirl.lpl.arizona.edu (Cynthia Phillips)
To: ssi_science@noao.edu
Subject: E11 regmap mosaic
Content-Length: 2660
Status: RO
X-Lines: 78
I've also completed a mosaic of the e11 regmap images. This one, in
an orthographic projection, is available on rushmore and on pirl
as described below. The mosaic is also available placed in a G1
context image. The coordinate system on these two images is that
of my g7c9full.noseam global mosaic.
The context version has been compressed with gzip due to its large
size.
Europa E11 regmap mosaic
VICAR format: on Rushmore.jpl.nasa.gov
/home/ssi/review/e11LPL_regmap.vic
and /home/ssi/review/e11LPL_regmap_cxt.vic
(warning: files may be deleted from Rushmore after 2 weeks due to
restricted disk space.)
ISIS format: on pirl.lpl.arizona.edu
/galileo3/review/Europa/e11LPL_regmap.cub
and /galileo3/review/Europa/e11LPL_regmap_cxt.cub
(contact joep@pirl.lpl.arizona.edu if you need an account on pirl)
e11LPL_regmap.cub:
Description: SSI high-res frames merged and mosaiced
Projection: Orthographic
kilometers/pixel scale: 0.22
latitude range: 9.02,-21.93
longitude range: -129.40,-114.77
center latitude or projection: 3.28
center longitude of projection: -140.45
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 3766
number of samples: 1814
size: 6.9 megabytes (uncompressed)
Frame numbers: s0420619200_3,s0420619200_5,s0420619200_6,
s0420619213_3,s0420619213_5,s0420619213_6,s0420619226_3,
s0420619239_3,s0420619239_5,s0420619252_2,s0420619252_4,
s0420619265_2,s0420619265_4,s0420619278_3,s0420619278_5,
s0420619278_6,s0420619300_2,s0420619300_4,s0420619313_2,
s0420619313_3,s0420619326_2,s0420619326_3
e11LPL_regmap_cxt.cub:
Description: SSI high-res frames merged and mosaiced with G1
context frame
Projection: Orthographic
kilometers/pixel scale: 0.22
latitude range: 25,-35
longitude range: -145,-100
center latitude or projection: 3.28
center longitude of projection: -140.45
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 7112
number of samples: 5168
size: 11 megabytes (compressed with gzip)
Frame numbers: s0420619200_3,s0420619200_5,s0420619200_6,
s0420619213_3,s0420619213_5,s0420619213_6,s0420619226_3,
s0420619239_3,s0420619239_5,s0420619252_2,s0420619252_4,
s0420619265_2,s0420619265_4,s0420619278_3,s0420619278_5,
s0420619278_6,s0420619300_2,s0420619300_4,s0420619313_2,
s0420619313_3,s0420619326_2,s0420619326_3,s0349875126_3,
s0349875126_4
Enjoy, and let me know if you have any questions or problems.
--Cynthia
phillips@lpl.arizona.edu
========================================================================
>From ssi_science-request@noao.edu Tue Jan 20 16:26:16 1998
X-Sender: Geoffrey_Clark_Collins@postoffice.brown.edu
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Date: Tue, 20 Jan 1998 18:17:25 -0500
To: ssi_science@noao.edu
From: Geoffrey Collins
Subject: E12 Chaos stereo
Content-Length: 1237
Status: RO
X-Lines: 30
Hello, Europaphiles...
It turns out that Galileo was moving fast enough while shuttering the 9
m/pixel E12 Conamara Chaos mosaic that one can see stereo topography in the
overlap regions of consecutive frames. So far, we have only returned the
bottom halves of the 5 frames in this sequence, and of those, only the
first two have overlap. (The frames are linked top right corner to bottom
left corner.)
This is important from a downlink planning standpoint, because we will want
to play back all of these overlap regions to get the maximum area covered
by stereo data. This does not change the current plan, but we will
certainly want to avoid cutting these overlap areas if downlink gets
tighter.
If you want to check out a preliminary red-green version of the stereo
image (red is the left channel), download the file Chaos_stereo.tif from
the gllpeople folder on ganymede.geo.brown.edu
login = gllpeople
password = ssinims
Most of this small area is the top of an intact block with parallel ridges,
and in the northern corner, there is a small glimpse of the lowlying matrix
between the blocks. A small bright cluster of craters (probably Pwyll
ejecta) overlies both terrain types.
Enjoy!
Geoff Collins and Louise Prockter
====================================================================
>From ssi_science-request@noao.edu Thu Jan 22 14:14:13 1998
To: ssi_science@noao.edu
From: LO@dione.la.asu.edu, ASU Crew
Subject: Re: E12/E6 high res mos
Dear Team,
The wonderful mosaic of E12 high res data inset into E6 high and regional
resolution coverage of the Conamara Chaos region that Roland produced has been
put into the ASU GLL_HIIPS directory. There are two versions of the file:
E12_E6_PRELIM1.PICT in Pict format, Photoshop 3.0
E12_E6_PRELIM1.VIC in Vicar format
>From ssi_science-request@noao.edu Fri Jan 23 13:55:26 1998
To: ssi_science@noao.edu
Subject: Map label for E12 in E6 context
Berlin, 23-Jan-1998
Dear Colleagues,
Below I attach the (Vicar) map label information for the preliminary E12
Conamara Chaos mosaic in E6 context Ed Lo has put on the ASU GLL_HIIPS
directory (see also Ed Lo's e-mail to ssi_science he sent yesterday).
Best regards and enjoy ! -- Roland Wagner
================================================================================
TARGET_BODY='EUROPA'
MAP_PROJECTION_TYPE='MERCATOR'
COORDINATE_SYSTEM_NAME='PLANETODETIC'
POSITIVE_LONGITUDE_DIRECTION='WEST'
A_AXIS_RADIUS=1561.5
B_AXIS_RADIUS=1561.5
C_AXIS_RADIUS=1561.5
MAP_SCALE=0.009999999823393647
MAP_RESOLUTION=504.6912583333335
CENTER_LATITUDE=0.0
CENTER_LONGITUDE=270.0
LINE_PROJECTION_OFFSET=24775.20043754578
SAMPLE_PROJECTION_OFFSET=12630.60022306442
====================================================================
>From ssi_science-request@noao.edu Thu Jan 29 07:11:54 1998
To: ssi_science@noao.edu
Subject: DLR E12 stereo products
Berlin, 29-Jan-1998
Dear Colleagues,
We have put three preliminary stereo products of 12ESCHAOS01 on rushmore.
Directory is /home/tyr/E12_stereo. The files are:
(1) dlr_e12chaos_stereo1.pict
---------------------------------
The file shows a perspective view of a preliminary terrain model derived from
two overlapping frames (S0426271900 and S0426271913) of Conamara Chaos
(12ESCHAOS01). The file was saved in PICT-Format under Photoshop 3.0.
(2) dlr_e12chaos_dtm1.hlf
-----------------------------
This is a digital terrain model with a ground pixel size of 10 m. The actual
ground pixel resolution of the DTM is probably not better than 50 m (best
guess). The height accuracy is better than 30 m in most parts of the terrain
model.
The file is in standard Vicar format (halfword).
(3) dlr_e12chaos_ortho1.byt
-------------------------------
This is the ortho-image derived from the terrain model (2) and from SSI frame
S0426271900.
The file is in standard Vicar format (byte).
Best regards and enjoy !
Bernd Giese
Roland Wagner
Gerhard Neukum
====================================================================
>From ssi_science-request@noao.edu Wed Jan 28 13:23:34 1998
To: ssi_science@noao.edu
Subject: e12 stereo images
The high res sequence in the wedges region included images
that allowed stereo reconstruction over several square
kilometers. We have created stereo pairs and placed them on
rushmore in:
/home/ssi/review/
e12_wedge_left.tif
e12_wedge_right.tif
The dominant structure in this region is a 1 km wide
symetrical ridge system (Class 2 in the ridge taxonomy
of Greenberg et al.). According to our model, Class 2
ridges form during diurnal extrusion of crushed ice, while
incomplete extrusion rachets open the underlying crack
in the crust. See our Icarus and LPSC submissions for more
details on this model.
Greg Hoppa, Rick Greenberg and Randy Tufts
====================================================================
Date: Thu, 5 Feb 98 17:13:51 MST
From: eliz@noao.edu (Elizabeth Alvarez del Castillo)
Message-Id: <9802060013.AA00418@eagle.tuc.noao.edu>
To: mfishburn@noao.edu
Subject: Archive products
Cc: bexton@noao.edu, mbelton@noao.edu
Status: RO
Please save these two files in the correct product directories.
You'll find them on Eagle in /data0/eliz/ADMIN/junk
Both products were obtained from Jim Klemazewski at ASU on 2/4/98.
e3wedges.liz is the C3 Wedges image with one set of missing lines filled in
and the other set of missing lines filled in by lower
resolution VOyager data
e4callan.liz is the E4 Callanish Macula mosaic.
-Eliz.
====================================================================
>From ssi_science-request@noao.edu Thu Feb 12 09:40:50 1998
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Date: Thu, 12 Feb 1998 17:36:05 +0100 (MET)
From: Thomas Roatsch
To: Michael Belton X350
Cc: Thomas.Roatsch@dlr.de, ssi_science@noao.edu
Subject: proposal for press conference
In-Reply-To: <199802061851.LAA04496@jupiter.tuc.noao.edu>
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Mike,
we put a first example of a perspective view of the wedges01/02 area
as proposal for the press conference on rushmore.
The image is wedges_perspec_1.vic in /home/ssi/review
Gerhard Neukum and the DLR SSI Team
========================================================================
>From ssi_science-request@noao.edu Fri Feb 13 09:56:37 1998
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Date: Fri, 13 Feb 1998 17:52:15 +0100 (MET)
From: Thomas Roatsch
To: ssi_science@noao.edu
Subject: new proposals for press release
Message-Id:
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Content-Type: TEXT/PLAIN; charset="US-ASCII"
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Mike and Jim,
we created a few more perspective views for the next press conference:
pwyll20.vic Pwyll viewed from 20 degrees elevation, color coded
height
pwyll20bw.vic Pwyll viewed from 20 degrees elevation, no colors
pwyll35.vic Pwyll viewed from 35 degrees elevation, color coded
height
pwyll35bw.vic Pwyll viewed from 35 degrees elevation, no colors
pwyll45.vic Pwyll viewed from 45 degrees elevation, color coded
height
pwyll45bw.vic Pwyll viewed from 45 degrees elevation, no colors
wedges35.vic Wedges 01/02 area, viewed from 35 degrees elevation,
color coded height
wedges35bw.vic Wedges 01/02 area, viewed from 35 degrees elevation,
no colors
All images are on rushmore in /home/ssi/review
Gerhard Neukum and the DLR SSI Team
==================================================================
>From ssi_science-request@noao.edu Fri Feb 6 08:28:20 1998
To: ssi_science@noao.edu
Subject: new DLR products on rushmore
Berlin, 6-Feb-1998
Dear colleagues,
We have put several stereo products on rushmore into /home/ssi/review :
(1) E12 wedges stereo
-----------------------
- File e12wedge0102_dtm.hlf Vicar image, halfword format
The DTM was created with frames s0426272821 (wedge_02), and
s0426272639, s0426272642 and s0426272646 (wedge_01). The DTM will be
completed as soon as pass 2 playback is terminated.
Pixel resolution is 14 m/pxl.
- File e12wedge0102_ortho.byt Vicar image, byte format
This file is an ortho-photo mosaic derived from three wedge_01 images.
Resolution is also 14 m/pxl.
- File e12wedge0102_ortho.pict Pict format
Here are some preliminary observations based on the DTM:
- Covered area is about 14 km x 4 km.
- Height accuracy is better than 10 m.
- Terrain A showing a NW-SE structural trend is about 100 m lower than
the surrounding NE-SW trending ridge R1.
- The trough T cutting through terrain B in N-S direction is about 60 to
80 m deep (with respect to B) and has slopes up to 20 deg at the east-
facing wall.
- Ridge R2 is about 80-100 m higher than the surrounding terrain. Slopes
are up to 16 deg (east-facing wall). The "true" slopes may be some
degrees steeper.
- There seems to be a general smooth slope down from east to west (average
height difference is about 200-300 m).
File wedges_e12_ana.vic Vicar image, byte format, colour, BSQ
For this preliminary anaglyph image of E12 wedges portions of wedge_02
(green channel) have been manually adjusted (for resolution, geometry)
to fit onto the corresponding wedge_01 images (red channel). The
resulting images have been mosaicked.
(2) E12/E6 Pwyll stereo
-------------------------
File Pwyll_ana.vic Vicar image, byte format, colour, BSQ
Preliminary anaglyph image of Pwyll crater were s0426268700.4 image (green) has
Both images have been geometrically altered.
Enjoy !
Gerhard Neukum and the DLR SSI Team
==================================================================
>From ssi_science-request@noao.edu Fri Feb 6 15:37:24 1998
To: ssi_science@noao.edu
Subject: e12 mosaics on rushmore
Howdy all!
I've put three e12 mosaics on rushmore in /home/ssi/review:
(1) e12pwyll.vic -- orthographically reprojected with north up at 0.040
m/pixel (the larger file sizes make better photographic reproductions (less
degraded looking). This file is 8.5 megaBYTES.
(2) e12_2pwyll.vic -- a smaller version of the above mosaic showing the
location of the imageon the e2photom disc imaged on G2. Only 1.57 megabytes.
(3) e12_6chaos.vic -- the five e12 chaos pass-1 frames set into context in a
portion of the e6 bright plains 01 mosaic; orthographically reprojected to
0.015 m/pixel. The e12 hires frames are set into the e6 context, not
registered to it. 7.8 megabytes.
Due to the large sizes of these files, I will delete them from rushmore first
thing Tuesday morning.
Cheers,
Klem
==================================================================
>From ssi_science-request@noao.edu Mon Feb 9 12:04:17 1998
To: ssi_science@noao.edu
Subject: pwyll stereo
Cc: hoppa@pirl.lpl.arizona.edu
I have made a slightly different version of the Pwyll stereo images.
The images are located in:
/home/ssi/review/
pwyll_e6.cub (right image)
pwyll_e12.cub (left image)
pwyll_stereo.tif (for use with red-blue glasses with red on the left)
Both images are orthographic reprojections centered on
-1.715 latitude 273.55 longitude with a resolution of 126 m/pixel.
Enjoy,
Greg
==================================================================
>From ssi_science-request@noao.edu Fri Feb 6 19:15:30 1998
To: ssi_science@noao.edu
Subject: 2 more e12 mosaics
2 more e12 mosaics are available of rushmore /home/ssi/review:
(1) g12glgmsh.vic -- the pass 1 & 2 ganymede gilgamesh basin
orthographic reprojection -- 6.86 megabytes
(2) e12_3wedges.vic -- this is a composite of the e12wedges01,
e12wedges02, e12wedges03 (registered together) stuck to (not
registered but it looks good except for the upper right two
frames of 02) the e3wedges image. All of these have been
reprojected orthographically to 0.056 km/pixel. --8.46 meg.
I have a version without the e3wedges background at 0.028
km/pixel available upon request.
Due to their large size, these images will be deleted from
rushmore early tue morning (AZ time).
enjoy,
Klem
==================================================================
>From ssi_science-request@noao.edu Tue Feb 10 08:29:54 1998
To: ssi_science@noao.edu
Subject: red - blue anaglyphs
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
We reproduced our anaglyphs from Friday (pwyll and wedges) as red-blue
anaglyphs.
Both images can be found on rushmore in /home/ssi/review/,
the filenames are
Pwyll_redblue.vic
Wedges_redblue.vic
Mike,
we will generate all our stereo products for the press conference as
red-blue stereo products.
Gerhard Neukum and the DLR SSI Team
==================================================================
From: Thomas Roatsch
To: ssi_science@noao.edu
Subject: wedges draft video
Message-Id:
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Status: R
Mike and Jim,
we put a DRAFT video with a fligth over our wedges01/02 DTM on rushmore.
We hope to send a better version on Monday.
The video is in two different formats
(E12-wedges-draft.avi and E12-wedges-draft.mac).
Both videos are in /home/ssi/review.
It should be possible to view both videos on different platforms.
Please, let us know if you have any problems to show these videos.
Gerhard Neukum and the DLR SSI Team
==================================================================
>From ssi_science-request@noao.edu Tue Feb 17 04:00:54 1998
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Date: Tue, 17 Feb 1998 11:59:38 +0100 (CET)
Reply-To: Roland.Wagner@dlr.de
To: ssi_science@noao.EDU
Message-Id: <980217115938.214001af@terra.pe.ba.dlr.de>
Subject: DLR updated mosaic E12/E6 Conamara Chaos
Content-Length: 1168
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Status: RO
********************************************************************************
Berlin, 17-Feb-1998
Dear Colleagues,
We have put an updated version of the E12 Conamara Chaos 10m/pxl in E6 context
on rushmore in /home/ssi/review. File name is dlr_e12chaos_cntxt_pass1.mos. The
file is in standard Vicar format with map label (see below).
The E12 frames were map projected (Mercator) and registered manually to the
E6 context. Part of processing (contrast and edge enhancement) was done in
Photoshop.
Enjoy ! --- Roland Wagner
------------------------------------------------------------
Map label:
------------
TARGET_BODY='EUROPA'
MAP_PROJECTION_TYPE='MERCATOR'
COORDINATE_SYSTEM_NAME='PLANETODETIC'
POSITIVE_LONGITUDE_DIRECTION='WEST'
A_AXIS_RADIUS=1565.0
B_AXIS_RADIUS=1565.0
C_AXIS_RADIUS=1565.0
BODY_LONG_AXIS=0.0
MAP_SCALE=0.009999999776482582
CENTER_LATITUDE=0.0
CENTER_LONGITUDE=270.0
SPHERICAL_AZIMUTH=0.0
CARTESIAN_AZIMUTH=0.0
LINE_PROJECTION_OFFSET=24775.201171875
SAMPLE_PROJECTION_OFFSET=12630.6005859375
================================================================================
>From ssi_science-request@noao.edu Tue Feb 17 09:42:44 1998
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Reply-To: Roland.Wagner@dlr.de
To: ssi_science@noao.EDU
Message-Id: <980217174118.21400233@terra.pe.ba.dlr.de>
Subject: E12 wedge02 in C3 context
Content-Length: 1076
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Status: RO
********************************************************************************
Berlin, 17-Feb-1998
Dear Colleagues,
We have put a pass-1 mosaic of 12ESWEDGES02 in C3 context on rushmore in
/home/ssi/review. File name is dlr_e12wedge02_c3_cntxt.vic (Vicar format;
map information see below).
A (smaller) version of this mosaic showing the areas used for crater counts
will follow later this day or tomorrow.
Enjoy ! -- Roland Wagner
---------------------------------------------------
TARGET_BODY='EUROPA'
MAP_PROJECTION_TYPE='MERCATOR'
COORDINATE_SYSTEM_NAME='PLANETODETIC'
POSITIVE_LONGITUDE_DIRECTION='WEST'
A_AXIS_RADIUS=1565.0
B_AXIS_RADIUS=1565.0
C_AXIS_RADIUS=1565.0
BODY_LONG_AXIS=0.0
MAP_SCALE=0.02499999930692277
MAP_RESOLUTION=63.5218931294326
CENTER_LATITUDE=0.0
CENTER_LONGITUDE=200.0
SPHERICAL_AZIMUTH=0.0
CARTESIAN_AZIMUTH=0.0
LINE_PROJECTION_OFFSET=-15514.40068817139
SAMPLE_PROJECTION_OFFSET=-584.8000259399414
================================================================================
>From ssi_science-request@noao.edu Tue Feb 17 11:25:15 1998
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Date: Tue, 17 Feb 1998 19:23:23 +0100 (CET)
From: Uli Koehler/DLR
To: ssi_science@noao.EDU
Message-Id: <980217192323.218000e8@terra.pe.ba.dlr.de>
Subject: 2 new E12 products by DLR
Content-Length: 720
X-Lines: 22
Status: RO
E12 stereo products from DLR
============================
Team,
we put a new version of our Pwyll red-blu anaglyph image on RUSHMORE
located in ssi_review, where a map projection has been applied. It's
in VICAR format and named
e6e12_pwyll_orth_anagl_blue.vic
In addition, there is a color-coded stereo model of Pwyll as seen
under a 45 deg angle (same as we put in a b/w version on RUSHMORE last
friday); changes, of course, can be applied, in case a different
color table should be applied, or the viewing angle or the hight
exaggeration should be modified. Filename on ssi_review is
pwylln_color_new.vic
Any comments or suggestions appreciated!
Uli Koehler,
for Gerhard Neukum and the DLR Galileo Group
========================================================================
>From all_hiips-request@noao.edu Tue Feb 17 13:23:10 1998
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Date: Tue, 17 Feb 1998 13:20:54 -0700 (MST)
From: Moses Milazzo
To: all_hiips@noao.edu
Subject: Europa E12 Wedges 15m/pxl mosaic
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Europa Wedges 15M Mosaic
VICAR format: on Rushmore.jpl.nasa.gov
/home/ssi/review/E12_Wedges_15M.vic
(Warning, due to limited space, images deleted after two weeks.)
ISIS format: on pirl.lpl.arizona.edu
/galileo3/mosaics/Europa/E12_Wedges_15M.cub
(contact joep@pirl.lpl.arizona.edu if you need an account on pirl.)
E12_Wedges_15M.README (this file, on both Rushmore and pirl)
Description: Mosaic of SSI hi-res frames.
ProjectiOn: Orthographic
kilometers/pixel scale: .015
latitude range: -17.62 to -16.8
longitude range: -164.62 to -160.8
center latitude of projection: -7.08
center longitude of projection: -171.54
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 1051
number of samples: 5496
size: 5.8 megabytes (uncompressed)
SSI frame numbers: s0426272600.1 to s0426272660.1
Image Processing done by: Moses Milazzo, mmilazzo@pirl.lpl.arizona.edu
have fun,
Moses
=====================================================================
>From all_hiips-request@noao.edu Tue Feb 17 13:23:58 1998
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Date: Tue, 17 Feb 1998 13:21:58 -0700 (MST)
From: Moses Milazzo
To: all_hiips@noao.edu
Subject: Europa E12 Wedges in E12 context (15m/pxl)
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Europa E12 Wedges Mosaic
VICAR format: on Rushmore.jpl.nasa.gov
/home/ssi/review/E12_Wedges_15M_E12_context.vic,
(Warning, due to limited space, images deleted after two weeks.)
ISIS format: on pirl.lpl.arizona.edu
/galileo3/mosaics/Europa/E12_Wedges_15M_E12_context.cub,
(contact joep@pirl.lpl.arizona.edu if you need an account on pirl.)
E12_Wedges_15M_E12_context.README (this file, on both Rushmore and pirl)
Description: Mosaic of SSI hi-res frames mosaicked onto E12 med-res
for regional context.
Projection: Orthographic
kilometers/pixel scale: .015
latitude range: -18 to -16.5
longitude range: -166 to -160
center latitude of projection: -7.08
center longitude of projection: -171.54
(center coordinates close to GLL sub-spacecraft coordinates,
to preserve correct 3D perspective of topography).
bit type: 8 (byte)
number of lines: 1991
number of samples: 7601
size: 15.2 megabytes (uncompressed)
SSI frame numbers: s0426272600.1 to s0426272660.1, s0426273826.1
Image Processing done by: Moses Milazzo, mmilazzo@pirl.lpl.arizona.edu
======================================================================
>From all_hiips-request@noao.edu Tue Feb 17 13:25:07 1998
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Date: Tue, 17 Feb 1998 13:23:20 -0700 (MST)
From: Moses Milazzo
To: all_hiips@noao.edu
Subject: Europa E12 Wedges in E12 context in C3 context (30m/pxl)
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Europa Wedges E12_C3_30M_context Mosaic
VICAR format: on Rushmore.jpl.nasa.gov
/home/ssi/review/E12_Wedges_E12_C3_30M_context.vic
(Warning, due to limited space, images deleted after two weeks.)
ISIS format: on pirl.lpl.arizona.edu
/galileo3/mosaics/Europa/E12