OMEGA shapefile metadata description (applicable to version 1.0 of the shapefiles).
OBS_NAME	-
SHP_VER	1.0	Shapefile version
PDS_VER	PDS3	-
INSTRUMENT	-
D_QUALITY	Data quality (0 to 3), from .QUB header
ORB_NUMBER	From .QUB header
START_TIME	From .QUB header
STOP_TIME	From .QUB header
MAX_LAT		Maxinum cube latitude, from .QUB header
MIN_LAT		Mininum cube latitude, from .QUB header
MAX_LON		Maximum cube longitude, from .QUB header
MIN_LON		Minimum cube longitude, from .QUB header
SLANT_DIST	Mean S/C distance to Mars, from .QUB header
INST_MODE	From .QUB header
EXPOSURE	From .QUB header
DT_SUMMING	Downtrack summing, from .QUB header
V_DET_TEMP	V channel detector temperature, from .QUB header
C_DET_TEMP	C channel detector temperature, from .QUB header
L_DET_TEMP	L channel detector temperature, from .QUB header
V_SPE_TEMP	V channel spectrometer temperature, from .QUB header
C_SPE_TEMP	C channel spectrometer temperature, from .QUB header
L_SPE_TEMP	L channel spectrometer temperature, from .QUB header
SAMPLE	128	Across track "X" dimension
BAND	352	Wavelength spectels "L" dimension
LINE	555	Along track "Y" dimension
V_CHANNEL	Is V channel ON ? 1:yes, 0:no
C_CHANNEL	Is C channel ON ? 1:yes, 0:no
L_CHANNEL	Is L channel ON ? 1:yes, 0:no
SOLAR_LON	Solar longitude
TARGET		From .NAV header
POINTING	From .NAV header
MIN_DIST	Minimum S/C distance to Mars
MAX_DIST	Maxinimum S/C distance to Mars
MIN_INCI	Minimum geoid solar incidence angle
MAX_INCI	Maximum geoid solar incidence angle
MIN_EMER	Minimum geoid solar emergence angle
MAX_EMER	Maximum geoid solar emergence angle