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:Feature_Locations
A table for storing the coordinates of potentially interesting features found in HiRISE observations. These may be a single coordinate or multiple coordinate sets defining an area, or even a center and radius (for example). Only line and sample coordinates are currently supported.

Field Description Type Null Limits Size Key Default Authority Source
ID A unique integer ID assocated with each coordinate. INT(10) unsigned auto_increment Not Null Primary Key db server
TAG_ID This is the ID of the TAG from the TAGS table that this coordinate is associated with. INT(10) unsigned Not Null Foreign Key which references Tags (ID) ON DELETE CASCADE Downlink tools
COORDINATE_TYPE The type of coordinates being stored. This can be a single point, a polygon, or a circle. ENUM("POLYGON","CIRCLE_CENTER","CIRCLE_RADIUS") Not Null Downlink tools
SEQUENCE An optional field indicating the order of the points, for example, to traverse the points of a polygong in a clockwise fashion. INT(3) unsigned Downlink tools
IMAGE_X The value of the "X" coordinate in the image for this node. FLOAT Not Null Downlink tools
IMAGE_Y The value of thhe "Y" coordinate in the image for this node. FLOAT Not Null Downlink tools
LAST_UPDATE This column records the last time that a record was updated. TIMESTAMP db server

Table Options:

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This page was generated from the XML HiCat Data Dictionary. HEAD

Contact

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