PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 302 FILE_RECORDS = 560 ^INDEX_TABLE = "INDEX.TAB" VOLUME_ID = "SLRM_90XX" DATA_SET_ID = "ARCB/NRAO-L-RTLS/GBT-5-12.6CM-V1.0" INSTRUMENT_HOST_NAME = {"ARECIBO OBSERVATORY","NATIONAL RADIO ASTRONOMY OBSERVATORY"} INSTRUMENT_NAME = {"RADIO TELESCOPE","ROBERT C. BYRD GREEN BANK TELESCOPE"} OBJECT = INDEX_TABLE INTERCHANGE_FORMAT = ASCII ROW_BYTES = 302 ROWS = 560 COLUMNS = 29 INDEX_TYPE = SINGLE OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = PATH_NAME DATA_TYPE = CHARACTER START_BYTE = 2 BYTES = 4 DESCRIPTION = "The full directory path to the file." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = FILE_NAME DATA_TYPE = CHARACTER START_BYTE = 9 BYTES = 20 DESCRIPTION = "The name of the file containing a data product's PDS label." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = PRODUCT_ID DATA_TYPE = CHARACTER START_BYTE = 32 BYTES = 16 DESCRIPTION = "A permanent, unique identifier assigned to a data product by its producer." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = PRODUCT_CREATION_TIME DATA_TYPE = TIME START_BYTE = 50 BYTES = 19 DESCRIPTION = "UTC date when this product was created, in the format yyyy-mm-dd." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = LATITUDE DATA_TYPE = ASCII_INTEGER START_BYTE = 70 BYTES = 3 UNIT = DEGREE DESCRIPTION = "Latitude of radar target, in degrees. Target is defined as the location where the radar transmitter beam center was pointed." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = LONGITUDE DATA_TYPE = ASCII_INTEGER START_BYTE = 74 BYTES = 3 UNIT = DEGREE DESCRIPTION = "Longitude of radar target, in degrees east. Target is defined as the location where the radar transmitter beam center was pointed." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = START_TIME DATA_TYPE = TIME START_BYTE = 78 BYTES = 19 DESCRIPTION = "UTC date and time at the beginning of data acquisition for this product, in the format yyyy-mm-ddThh:mm:ss." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = STOP_TIME DATA_TYPE = TIME START_BYTE = 98 BYTES = 19 DESCRIPTION = "UTC date and time at the end of data acquisition for this product, in the format yyyy-mm-ddThh:mm:ss." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = CENTER_FREQUENCY DATA_TYPE = ASCII_INTEGER START_BYTE = 118 BYTES = 4 UNIT = MEGAHERTZ NOT_APPLICABLE_CONSTANT = -999 DESCRIPTION = "Center frequency of the transmitted signal. In MHz." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = TRANSMITTED_POLARIZATION_TYPE DATA_TYPE = CHARACTER START_BYTE = 124 BYTES = 14 DESCRIPTION = "Polarization of the signal transmitted by Arecibo." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = RECEIVED_POLARIZATION_TYPE DATA_TYPE = CHARACTER START_BYTE = 141 BYTES = 14 DESCRIPTION = "Polarization of signal received at the Greenbank Telescope." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = INTEGRATION_PERIOD_PER_LOOK DATA_TYPE = ASCII_REAL START_BYTE = 157 BYTES = 8 UNIT = SECOND FORMAT = "F8.3" NOT_APPLICABLE_CONSTANT = -999.999 DESCRIPTION = "Integration period that defines the frequency resolution of the synthetic aperture radar image. In seconds." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = RADAR_PULSE_LENGTH DATA_TYPE = ASCII_REAL START_BYTE = 166 BYTES = 8 UNIT = MICROSECOND NOT_APPLICABLE_CONSTANT = -999.999 DESCRIPTION = "The length of each transmitted 2380-MHz pulse from Arecibo. In microseconds." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = RADAR_PULSE_CODING DATA_TYPE = CHARACTER START_BYTE = 176 BYTES = 4 DESCRIPTION = "The method used to encode a longer pulse to yield a compressed pulse length of shorter duration. PN denotes a pseudo-random noise signal. All data in this archive were obtained using a PN code of length 65535 samples, with each sample baud 0.2 microseconds in duration." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = HORIZONTAL_SPATIAL_RESOLUTION DATA_TYPE = ASCII_REAL START_BYTE = 182 BYTES = 8 UNIT = METER NOT_APPLICABLE_CONSTANT = -999.999 DESCRIPTION = "The spatial resolution on the lunar surface of the resampled radar image data. In meters." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = NUMBER_OF_LOOKS DATA_TYPE = ASCII_INTEGER START_BYTE = 191 BYTES = 4 NOT_APPLICABLE_CONSTANT = -999 DESCRIPTION = "The number of independent observations averaged to yield the reported power value in each image pixel." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = MINIMUM_LATITUDE DATA_TYPE = ASCII_REAL START_BYTE = 196 BYTES = 8 UNIT = DEGREE DESCRIPTION = "The southernmost latitude in degrees of a spatial area." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = MAXIMUM_LATITUDE DATA_TYPE = ASCII_REAL START_BYTE = 205 BYTES = 8 UNIT = DEGREE DESCRIPTION = "The northernmost latitude in degrees of a spatial area." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 19 NAME = EASTERNMOST_LONGITUDE DATA_TYPE = ASCII_REAL START_BYTE = 214 BYTES = 8 UNIT = DEGREE NOT_APPLICABLE_CONSTANT = -999.999 DESCRIPTION = "For Planetocentric coordinates and for Planetographic coordinates in which longitude increases toward the east, the easternmost (rightmost) longitude of a spatial area is the maximum numerical value of longitude unless it crosses the Prime Meridian. In degrees east." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 20 NAME = WESTERNMOST_LONGITUDE DATA_TYPE = ASCII_REAL START_BYTE = 223 BYTES = 9 UNIT = DEGREE NOT_APPLICABLE_CONSTANT = -999.999 DESCRIPTION = "For Planetocentric coordinates and for Planetographic coordinates in which longitude increases toward the east, the westernmost (leftmost) longitude of a spatial area is the minimum numerical value of longitude unless it crosses the Prime Meridian. In degrees east." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 21 NAME = MAP_PROJECTION_TYPE DATA_TYPE = CHARACTER START_BYTE = 234 BYTES = 19 DESCRIPTION = "Identifies the type of projection charcteristic of a given map." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 22 NAME = CENTER_LATITUDE DATA_TYPE = ASCII_REAL START_BYTE = 255 BYTES = 5 UNIT = DEGREE DESCRIPTION = "Latitude in degrees at center of map projection." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 23 NAME = CENTER_LONGITUDE DATA_TYPE = ASCII_REAL START_BYTE = 261 BYTES = 5 UNIT = DEGREE DESCRIPTION = "Longitude at center of map projection, in degrees east." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 24 NAME = LINES DATA_TYPE = ASCII_INTEGER START_BYTE = 267 BYTES = 5 DESCRIPTION = "The total number of data instances along the vertical axis of an image." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 25 NAME = LINE_SAMPLES DATA_TYPE = ASCII_INTEGER START_BYTE = 273 BYTES = 5 DESCRIPTION = "The total number of data instances along the horizontal axis of an image." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 26 NAME = SUB_EARTH_LATITUDE DATA_TYPE = ASCII_REAL START_BYTE = 279 BYTES = 5 UNIT = DEGREE DESCRIPTION = "The latitude of the location of the sub-radar point at the start of the observing period. Sub-radar point defined as the intersection of the line between the radar and the Moon's center of mass and the surface of a reference sphere. In degrees." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 27 NAME = SUB_EARTH_LONGITUDE DATA_TYPE = ASCII_REAL START_BYTE = 285 BYTES = 6 UNIT = DEGREE DESCRIPTION = "The longitude of the location of the sub-radar point at the start of the observing period. Sub-radar point defined as the intersection of the line between the radar and the Moon's center of mass and the surface of a reference sphere. In degrees east." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 28 NAME = INCIDENCE_ANGLE_AT_TARGET DATA_TYPE = REAL START_BYTE = 292 BYTES = 4 UNIT = DEGREE DESCRIPTION = "The value in degrees of the radar incidence angle at the pointing target at the beginning of the observation period." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 29 NAME = TRANSMITTED_POWER DATA_TYPE = ASCII_INTEGER START_BYTE = 297 BYTES = 4 UNIT = KILOWATT NOT_APPLICABLE_CONSTANT = -999 DESCRIPTION = "The estimated transmitted power level in kilowatts from the Arecibo S-band system during the observation period." END_OBJECT = COLUMN END_OBJECT = INDEX_TABLE END