CKBRIEF User's Guide
CKBRIEF is a command line program that allows you to easily summarize the
pointing data coverage of one or more CK files.
Usage
CKBRIEF is run by typing the name of the program at a shell prompt.
ckbrief [-option(s)] file [file ...]
A wide variety of options may be specified on the command line giving you a
great deal of flexibility in the operation and summary capability of the
program.
Options
Any of the following options may be specified. Some options may disable other
options. For example if you request that coverages be displayed as ephemeris
time and another option in the same command line will request UTC time then
only UTC time will be displayed. We have not attempted to spell out all of
the possible conflicts here, since for the most part you'd be unlikely to
specify conflicting options intentionally.
-
-t
-
display results in a tabular format
-
-h
-
display help text
-
-v
-
display the current version of the program
-
-f
-
provide a file containing full path names of files to summarize. This flag
is used as shown below
-
-
-f list_of_sources.file
-
-g
-
group together objects with the same coverage
-
[obj]
-
create a summary for the specified object. (here "obj" is the NAIF ID
integer code of a spacecraft, instrument or structure. Note that CKBRIEF
assumes that NAIF ID codes for a spacecraft, instrument or structure are
negative integer numbers.)
-
-sclk
-
display times in space clock string format
-
-dpsclk
-
display times in space clock double precision format
-
-utc
-
display times in UTC text string format
-
-doy
-
display times in DOY text string format
-
-nm
-
("no merge") causes the program to display a separate record for each
segment even when segments overlap
The names of a CK file(s) to be summarized and LSK and SCLK files required to
support time conversions must be provided on the command line or in a file
the name of which must be provided on the command line following the "-f"
key. The names provided in a file maybe each on a line by itself, multiple
names names per line separated by spaces or mixture of these two cases.
CKBRIEF will NOT display time if generic LSK file and an SCLK file for a
given object were not provided.
CKBRIEF will inform user on any incorrect option, incorrect file name or file
type specified in command line.