HiRISE: HiCat Data Dictionary HiRISE.Frost

HiCat Data Dictionary

Catalog: HiRISE: The main HiRISE catalog contains all the information used in operating the HiRISE camera after it is attached to the MRO spacecraft. The information is divided into those related to suggesting, planning, commanding, retrieving, processing, validating, and distributing the observations. The tag that follows an observation through all these catalogs (and from Earth to Mars and back) is the unique Observation_ID. This text representation also forms the core of the product names. The HiRISE catalog also contains ancillary information needed in various uplink and downlink activities, such as the people making image suggestions, MRO project uplink files, SPICE and engineering data, and public image releases.
Table:Frost_Statistics: This table stores frost/ice statistics for observations. The information in this table can be used to monitor frost/ice found in observations, or to locate observations that may have frost or ice. The statistics are also used for refining the stretch algorithm in the HiMosMerge pipeline (and probably the color nomap pipelines, eventually).

Field	Description	Type	Null	Key	Source
ID	This is a unique, numerical ID assigned by the database to each record in this table.	INT(10) unsigned auto_increment	Not Null	Primary Key	db server
OBSERVATION_ID	The observation id these statistics apply to.	VARCHAR(25)	Not Null		HiMosMerge
FROST_FOUND	If set to yes, then the statistics indicate frost is in the image.	ENUM("NO","YES")	Not Null		HiMosMerge
INCIDENCE_ANGLE_USED	Incidence angle used in the computation of the photometrically corrected scene brightness. This incidence angle used here may not necessarily be the same as the angle found in the Observation_Geometry. The value will be modified for high latitude observations to compensate for atmospheric haze effects.	FLOAT			HiMosMerge
REDUCE_FACTOR	An integer value that defines the NXN box size of the reduced image used to acquire ratio and brightness statistics.	INT(4) unsigned			HiMosMerge
BG_PHOTO_CORRECTED	BG maximum value that has photometric correction applied	FLOAT			HiMosMerge
BG_RED_RATIO_THRESHOLD	BG/RED ratio threshold value	FLOAT			HiMosMerge
BG_PHOTO_CORRECTED_THRESHOLD	Photometrically-corrected BG threshold value	FLOAT			HiMosMerge
INCIDENCE_ANGLE_THRESHOLD	Incidence angle threshold value for when only the BG/RED ratio value is used in determining if ice/frost is present	FLOAT			HiMosMerge
BG_RED_RATIO_MASK_MINIMUM	Minimum BG/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
BG_RED_RATIO_MASK_MAXIMUM	Maximum BG/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
BG_RED_RATIO_MASK_AVERAGE	Average BG/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
IR_RED_RATIO_MASK_MINIMUM	Minimum IR/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
IR_RED_RATIO_MASK_MAXIMUM	Maximum IR/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
IR_RED_RATIO_MASK_AVERAGE	Average IR/RED ratio value of the brightest BG area of the scene	FLOAT			HiMosMerge
BG_RED_RATIO_MINIMUM	Minimum BG/RED ratio value of the entire scene	FLOAT			HiMosMerge
BG_RED_RATIO_MAXIMUM	Maximum BG/RED ratio value of the entire scene	FLOAT			HiMosMerge
BG_RED_RATIO_AVERAGE	Average BG/RED ratio value of the entire scene	FLOAT			HiMosMerge
IR_RED_RATIO_MINIMUM	Minimum IR/RED ratio value of the entire scene	FLOAT			HiMosMerge
IR_RED_RATIO_MAXIMUM	Maximum IR/RED ratio value of the entire scene	FLOAT			HiMosMerge
IR_RED_RATIO_AVERAGE	Average IR/RED ratio value of the entire scene	FLOAT			HiMosMerge
IR_MINIMUM	Minimum IR value of the NxN reduced image	FLOAT			HiMosMerge
IR_MAXIMUM	Maximum IR value of the NxN reduced image	FLOAT			HiMosMerge
IR_AVERAGE	Average IR value of the NxN reduced image	FLOAT			HiMosMerge
RED_MINIMUM	Minimum RED value of the NxN reduced image	FLOAT			HiMosMerge
RED_MAXIMUM	Maximum RED value of the NxN reduced image	FLOAT			HiMosMerge
RED_AVERAGE	Average RED value of the NxN reduced image	FLOAT			HiMosMerge
BG_MINIMUM	Minimum BG value of the NxN reduced image	FLOAT			HiMosMerge
BG_MAXIMUM	Maximum BG value of the NxN reduced image	FLOAT			HiMosMerge
BG_AVERAGE	Average BG value of the NxN reduced image	FLOAT			HiMosMerge
LAST_UPDATE	The last time this record was updated.	TIMESTAMP			db server

Field: the field name within the table.
Description: the definition for the field.
Type: the data type of the field.
Null: whether the field is allowed to be null.
Limits: the acceptable data range for the field.
Size: the upper limit data storage size for the field.
Default: the default value for the field.
Authority: the agency responsible for definition of the field.
Source: the most frequent source of data for this field.

Table Options:

type=InnoDB

This page was generated from the XML HiCat Data Dictionary.

Contact

Please send comments to: HiCat@pirlmail.lpl.arizona.edu.