OBJECT = COLUMN NAME = ORBIT_QUALITY_FLAG_1 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 537 BYTES = 2 DESCRIPTION = "Flag indicating origin of orbit. A 0 indicates that JPL is the producer; a 1 or higher indicates that the MOLA Science Investigation Team is the producer, using the geopotential model GMM-1 or higher." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ORBIT_QUALITY_FLAG_2 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 539 BYTES = 2 DESCRIPTION = "Precision orbit quality flag; TBD." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ORBIT_QUALITY_FLAG_3 DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 541 BYTES = 2 DESCRIPTION = "Precision orbit quality flag; TBD." END_OBJECT = COLUMN OBJECT = COLUMN NAME = PHASE_ANGLE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 543 BYTES = 2 UNIT = 'RADIANS * (10**4)' DESCRIPTION = "The angle between the vectors from Mars to Mars Global Surveyor and from Mars to the Sun at the frame mid-point location." END_OBJECT = COLUMN OBJECT = COLUMN NAME = SOLAR_INCIDENCE_ANGLE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 545 BYTES = 2 UNIT = 'RADIANS * (10**4)' DESCRIPTION = "The angle between the Mars surface normal vector and the Sun vector at the frame mid-point location." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 547 BYTES = 2 UNIT = 'RADIANS * (10**4)' DESCRIPTION = "The angle between the Mars surface normal vector and the Mars Global Surveyor vector at the frame mid-point location." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ATMOS_OPACITY DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 549 BYTES = 4 DESCRIPTION = "The Mars atmospheric opacity Tau; may be retrieved from TES data. Nominally 0.5. Stored as a pure number * 10**6. To calculate surface reflectivity, the reflectivity-transmission product should be divided by exp(2*Tau)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DP_FRAME_TIME DATA_TYPE = IEEE_REAL START_BYTE = 553 BYTES = 8 UNIT = 'SECONDS' DESCRIPTION = "The IEEE standard 754-1985 double precision frame mid-point time in elapsed time from J2000, in seconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RECV_PULSE_ENERGY_COUNTS DATA_TYPE = UNSIGNED_INTEGER START_BYTE = 561 BYTES = 20 ITEMS = 20 ITEM_BYTES = 1 UNIT = 'COUNTS' DESCRIPTION = "The raw pulse energy reading for the trigger channel; in the range 0-255. (An array of 20 values per frame.)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = RECV_PULSE_WIDTH_COUNTS DATA_TYPE = UNSIGNED_INTEGER START_BYTE = 581 BYTES = 20 ITEMS = 20 ITEM_BYTES = 1 UNIT = 'COUNTS' DESCRIPTION = "The raw pulse width reading for the trigger channel; in the range 0-63. (An array of 20 values per frame.)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SC_BODY_FIXED_XYZ DATA_TYPE = MSB_INTEGER START_BYTE = 601 BYTES = 12 ITEMS = 3 ITEM_BYTES = 4 UNIT = 'CENTIMETERS' DESCRIPTION = "The Mars fixed X, Y, Z coordinates of the MGS spacecraft; from Precision Orbit data." END_OBJECT = COLUMN OBJECT = COLUMN NAME = GEOID_RADIUS DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 613 BYTES = 4 UNIT = 'CENTIMETERS' DESCRIPTION = "The radius of the reference geoid at frame midpoint, with a 3396 kilometer mean radius at the equator. Initially, the Goddard Mars Model 1 (GMM1) of Smith et al., 1993, with the coordinate system of IAU1991, is used." END_OBJECT = COLUMN OBJECT = COLUMN NAME = OFF_NADIR_ANGLE DATA_TYPE = MSB_INTEGER START_BYTE = 617 BYTES = 4 UNIT = 'DEGREES * (10**6)' DESCRIPTION = "Angle between the actual frame-midpoint shot direction and areocentric direction." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ENCODER_BITS DATA_TYPE = UNSIGNED_INTEGER START_BYTE = 621 BYTES = 20 ITEMS = 20 ITEM_BYTES = 1 DESCRIPTION = "The start encoder bits (0-3) plus 16*stop encoder bits (0-3) for each MOLA shot. These bits interpolate the time of the start and stop detectors, allowing the MOLA shot range to be more precisely computed. The encoder bits are accounted for in the shot range algorithm." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DELTA_GEOID DATA_TYPE = MSB_INTEGER START_BYTE = 641 BYTES = 4 UNIT = 'CENTIMETERS' DESCRIPTION = "The average change in reference geoid associated with each 20-shot MOLA frame." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MOLA_CLOCK_RATE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 645 BYTES = 4 UNIT = 'HERTZ' DESCRIPTION = "The MOLA clock rate estimated from the fine time counter drift with respect to the spacecraft clock." END_OBJECT = COLUMN OBJECT = COLUMN NAME = MOLA_RANGE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 649 BYTES = 80 ITEMS = 20 ITEM_BYTES = 4 UNIT = 'CENTIMETERS' DESCRIPTION = "MOLA range value per shot; this value is corrected by the range_correction. Array of 20 four byte values." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RANGE_CORRECTION DATA_TYPE = MSB_INTEGER START_BYTE = 729 BYTES = 40 ITEMS = 20 ITEM_BYTES = 2 UNIT = 'CENTIMETERS' DESCRIPTION = "Correction to the shot range values due to the detector response and range walk. An array of 20 two-byte values (one for each shot), in centimeters." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DELTA_LATITUDE DATA_TYPE = MSB_INTEGER START_BYTE = 769 BYTES = 4 UNIT = 'DEGREES X 1000000' DESCRIPTION = "The average distance between each latitude associated with each 20-shot MOLA frame." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DELTA_LONGITUDE DATA_TYPE = MSB_INTEGER START_BYTE = 773 BYTES = 4 UNIT = 'DEGREES X 1000000' DESCRIPTION = "The average distance between each longitude associated with each 20-shot MOLA frame." END_OBJECT = COLUMN