NAME = GEO
COLUMNS = 20
ROW_BYTES = 43
INTERCHANGE_FORMAT = BINARY
PRIMARY_KEYS = ( "SPACECRAFT_CLOCK_START_COUNT",
"DETECTOR_NUMBER" )
DESCRIPTION = "
The GEO table contains information about the sun/spacecraft/target
geometry in a format that is easily searchable. These values are
computed for every scan other than those used to calibrate the
instrument. If a viewing vector does not intersect the target body
(i.e., an atmospheric observation), then most of the geometry is
calculated relative to the point on the viewing vector closest to the
body (i.e., the tangent point). If the closest point lies behind the
spacecraft, fill values are used."
OBJECT = COLUMN
NAME = SPACECRAFT_CLOCK_START_COUNT
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 1
BYTES = 4
ALIAS_NAME = sclk_time
DESCRIPTION = "The value of the spacecraft clock at the
beginning of the observation"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = DETECTOR_NUMBER
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 5
BYTES = 1
ALIAS_NAME = detector
DESCRIPTION = "The number of the spectrometer detector that
made the observation. Detectors are numbered
from 1 to 6"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = LONGITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 6
BYTES = 2
SCALING_FACTOR = 0.01
DESCRIPTION = "Areocentric west longitude of target point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = LATITUDE
DATA_TYPE = MSB_INTEGER
START_BYTE = 8
BYTES = 2
SCALING_FACTOR = 0.01
DESCRIPTION = "Areocentric latitude of target point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = PHASE_ANGLE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 10
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = phase
DESCRIPTION = "Angle between the spacecraft, the target point
and the sun"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = EMISSION_ANGLE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 12
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = emission
DESCRIPTION = "Angle between the spacecraft, the target point and
the surface normal vector at the target"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = INCIDENCE_ANGLE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 14
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = incidence
DESCRIPTION = "Angle between the sun, the target point and the
surface normal vector at the target"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = PLANETARY_PHASE_ANGLE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 16
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = planetary_phase
DESCRIPTION = "Angle between the spacecraft, the center of the
target body and the sun"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SOLAR_LONGITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 18
BYTES = 2
SCALING_FACTOR = 0.01
DESCRIPTION = "Planetocentric longitude of the sun"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SUB_SPACECRAFT_LONGITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 20
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = sub_sc_lon
DESCRIPTION = "Areocentric west longitude of sub-spacecraft point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SUB_SPACECRAFT_LATITUDE
DATA_TYPE = MSB_INTEGER
START_BYTE = 22
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = sub_sc_lat
DESCRIPTION = "Areocentric latitude of sub-spacecraft point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SUB_SOLAR_LONGITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 24
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = sub_solar_lon
DESCRIPTION = "Areocentric west longitude of the sub-solar point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SUB_SOLAR_LATITUDE
DATA_TYPE = MSB_INTEGER
START_BYTE = 26
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = sub_solar_lat
DESCRIPTION = "Areocentric latitude of the sub-solar point"
UNIT = "DEGREE"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = TARGET_DISTANCE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 28
BYTES = 2
DESCRIPTION = "Distance from the spacecraft to the target point"
UNIT = "KM"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = TARGET_ALTITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 30
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = height
DESCRIPTION = "Distance from the surface to the target point.
This value is non-zero only for atmospheric
targets"
UNIT = "KM"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SPACECRAFT_ALTITUDE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 32
BYTES = 2
ALIAS_NAME = altitude
DESCRIPTION = "Distance from the spacecraft to the sub-spacecraft
point on the surface"
UNIT = "KM"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = LOCAL_TIME
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 34
BYTES = 2
SCALING_FACTOR = 0.001
DESCRIPTION = "Local time at target, in decimal Martian hours.
The Martian day is divided into 24 equal hours."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = SOLAR_DISTANCE
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 36
BYTES = 2
SCALING_FACTOR = 10000
DESCRIPTION = "Distance from the center of the sun to the center
of the target body"
UNIT = "KM"
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = PLANETARY_ANGULAR_RADIUS
DATA_TYPE = MSB_UNSIGNED_INTEGER
START_BYTE = 38
BYTES = 2
SCALING_FACTOR = 0.01
ALIAS_NAME = angular_semidiameter
DESCRIPTION = "Smallest angular radius of Mars as viewed from
the spacecraft."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = GEOMETRY_CALIBRATION_ID
DATA_TYPE = CHARACTER
START_BYTE = 40
BYTES = 4
ALIAS_NAME = version_id
DESCRIPTION = "Version ID of geometry algorithm used"
END_OBJECT = COLUMN