PDS_VERSION_ID = "PDS3" RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 350 FILE_RECORDS = 8247 ^TABLE = "R300_346.TAB" SPACECRAFT_NAME = "CLEMENTINE 1" TARGET_NAME = "MOON" INSTRUMENT_NAME = "LASER RANGEFINDER" DATA_SET_ID = "CLEM1-L-LIDAR-3-TOPO-V1.0" PRODUCT_ID = "R300_346" START_TIME = 1994-04-23T13:24:18.762 STOP_TIME = 1994-05-03T02:40:24.370 PRODUCT_RELEASE_DATE = 2007-01-01 START_ORBIT_NUMBER = 300 STOP_ORBIT_NUMBER = 346 PRODUCT_CREATION_TIME = 2007-04-06T10:01:24 DESCRIPTION = "This file contains aggregated topographic ranges, radii, and related data along each observational pass during which LIDAR laser range data were acquired. The data were created using preliminary spacecraft timing, orientation, and orbital solutions. The laser ranges have been converted from counts to meters using a calibration factor of 39.972 m per count. Timing information may have substantial errors owing to spacecraft computer resets and clock ambiguity. The lidar electronics triggered on photon pulses continuously, and recorded up to four pulses within a programmable range window. The last trigger before and the first trigger after the range window were also recorded. Usually, but not always, the first trigger within the range window was the valid range. For a few laser shots, multiple pulses were detected within the expected time interval for lunar reflections. Note: the fields START_ORBIT_NUMBER and STOP_ORBIT_NUMBER in this label refer to the Clementine revolution numbers, which increment at the start of the observational pass." OBJECT = TABLE ROWS = 8247 COLUMNS = 37 ROW_BYTES = 350 INTERCHANGE_FORMAT = ASCII DESCRIPTION = "The Clementine lidar table contains the laser ranges and related data for each orbit. Each row in the table contains the date/time, boresight angle, position of laser bounce points, radii, relative elevations, revolution number, range gates, and thresholds. The (delimited) data require 348 ASCII characters; these are followed by an ASCII carriage-return, and an ASCII line-feed." OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "UNIVERSAL TIME" DATA_TYPE = TIME START_BYTE = 1 BYTES = 23 FORMAT = "N/A" UNIT = "N/A" DESCRIPTION = "The date and time of the laser fire, in Universal Time Coordinates (UTC), for that point in the orbit. A 2-ms delay occurs before the actual laser fire." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "CAMERA FRAME" DATA_TYPE = ASCII_INTEGER START_BYTE = 24 BYTES = 6 FORMAT = "I6" DESCRIPTION = "The camera frame number of the laser shot." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "REVOLUTION NUMBER" DATA_TYPE = ASCII_INTEGER START_BYTE = 30 BYTES = 4 FORMAT = "I4.3" UNIT = "N/A" DESCRIPTION = "The revolution during which a data pass was acquired for that point. The revolutions included are from 8-346. Ranges acquired on calibration passes 8-19 were considered too noisy for topographic ranging." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "LATITUDE" DATA_TYPE = ASCII_REAL START_BYTE = 34 BYTES = 9 FORMAT = "F9.4" UNIT = "DEGREE" DESCRIPTION = "The latitude of the laser bounce point, in IAU body-fixed coordinates." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "LONGITUDE" DATA_TYPE = ASCII_REAL START_BYTE = 43 BYTES = 9 FORMAT = "F9.4" UNIT = "DEGREE" POSITIVE_LONGITUDE_DIRECTION = "EAST" DESCRIPTION = "The longitude of the laser bounce point, in IAU body-fixed coordinates." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "SPACECRAFT RADIAL DISTANCE" DATA_TYPE = ASCII_REAL START_BYTE = 52 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The spacecraft distance from the center of mass of the Moon at the laser fire time." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "RADIUS OF LUNAR SPHEROID" DATA_TYPE = ASCII_REAL START_BYTE = 62 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The radius at the laser bounce point latitude of a spheroid of radius 1738 km at the equator, with a flattening of 1/3234.93 corresponding to the flattening of the geoid." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "S/C POSITION X" DATA_TYPE = ASCII_REAL START_BYTE = 72 BYTES = 10 FORMAT = "F10.0" UNIT = "METER" DESCRIPTION = "The X component of the spacecraft in IAU body-fixed coordinates." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "S/C POSITION Y" DATA_TYPE = ASCII_REAL START_BYTE = 82 BYTES = 10 FORMAT = "F10.0" UNIT = "METER" DESCRIPTION = "The Y component of the spacecraft in IAU body-fixed coordinates." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "S/C POSITION Z" DATA_TYPE = ASCII_REAL START_BYTE = 92 BYTES = 10 FORMAT = "F10.0" UNIT = "METER" DESCRIPTION = "The Z component of the spacecraft in IAU body-fixed coordinates." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = RIGHT_ASCENSION DATA_TYPE = ASCII_REAL START_BYTE = 102 BYTES = 7 UNIT = "DEGREES" FORMAT = "F7.2" DESCRIPTION = "Right ascension angle of the lidar instrument." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = DECLINATION DATA_TYPE = ASCII_REAL START_BYTE = 109 BYTES = 7 UNIT = "DEGREES" FORMAT = "F7.2" DESCRIPTION = "Declination angle of the lidar instrument." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = TWIST DATA_TYPE = ASCII_REAL START_BYTE = 116 BYTES = 7 UNIT = "DEGREES" FORMAT = "F7.2" DESCRIPTION = "Twist angle of the lidar instrument." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "PREDICTED RANGE" DATA_TYPE = ASCII_REAL START_BYTE = 123 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The range to the spheroid predicted at the time of the laser fire, rounded upward to nearest 100 m." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "PREDICTED SLANT RANGE" DATA_TYPE = ASCII_REAL START_BYTE = 133 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The slant range to the spheroid predicted at the time of the laser fire, rounded upward to nearest 100 m." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "FIRST RANGE BEFORE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 143 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first range immediately before the opening of the range gate window. Values of 0 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "FIRST RANGE INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 153 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first range to trigger inside the range gate window. Values of 0 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "SECOND RANGE INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 163 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The second range to trigger inside the range gate window. Values of 0 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 19 NAME = "THIRD RANGE INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 173 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The third range to trigger inside the range gate window. Values of 0 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 20 NAME = "LAST RANGE INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 183 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The last range to trigger inside the range gate window, if any, possibly the same as one of the earlier ranges." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 21 NAME = "FIRST RANGE AFTER WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 193 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first range to trigger immediately after the closing of the range gate window, if any. Values of 0 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 22 NAME = "FIRST RADIUS BEFORE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 203 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first radius immediately before the opening of the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 23 NAME = "FIRST RADIUS INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 213 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first radius to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 24 NAME = "SECOND RADIUS INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 223 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The second radius to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 25 NAME = "THIRD RADIUS INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 233 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The third radius to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 26 NAME = "LAST RADIUS INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 243 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The last radius to trigger inside the range gate window, if any, possibly the same as one of the earlier ranges." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 27 NAME = "FIRST RADIUS AFTER WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 253 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first radius to trigger immediately after the closing of the range gate window, if any. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 28 NAME = "FIRST ELEVATION BEFORE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 263 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first elevation above the spheroid immediately before the opening of the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 29 NAME = "FIRST ELEVATION INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 273 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first elevation above the spheroid to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 30 NAME = "SECOND ELEVATION INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 283 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The second elevation above the spheroid to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 31 NAME = "THIRD ELEVATION INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 293 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The third elevation above the spheroid to trigger inside the range gate window. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 32 NAME = "LAST ELEVATION INSIDE WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 303 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The last elevation above the spheroid to trigger inside the range gate window, if any, possibly the same as one of the earlier values. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 33 NAME = "FIRST ELEVATION AFTER WINDOW" DATA_TYPE = ASCII_REAL START_BYTE = 313 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The first elevation above the spheroid to trigger immediately after the closing of the range gate window, if any. Values of -99999.99 indicate that no such trigger occurred." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 34 NAME = "RANGE GATE WINDOW OPENING" DATA_TYPE = ASCII_REAL START_BYTE = 323 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The range window setting after which up to four distinct triggers are recorded per laser shot, as well as the latest trigger before this setting." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 35 NAME = "RANGE GATE WINDOW CLOSING" DATA_TYPE = ASCII_REAL START_BYTE = 333 BYTES = 10 FORMAT = "F10.1" UNIT = "METER" DESCRIPTION = "The range window setting after which at most one more trigger is recorded." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 36 NAME = "RANGE THRESHOLD A" DATA_TYPE = ASCII_INTEGER START_BYTE = 343 BYTES = 3 FORMAT = "I3" UNIT = "N/A" DESCRIPTION = "A programmable voltage setting for range triggers." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 37 NAME = "RANGE THRESHOLD B" DATA_TYPE = ASCII_INTEGER START_BYTE = 346 BYTES = 3 FORMAT = "I3" UNIT = "N/A" DESCRIPTION = "A programmable voltage setting for range triggers." END_OBJECT = COLUMN END_OBJECT = TABLE END