PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 2048 FILE_RECORDS = 187501 DATA_SET_ID = "CLEM1-L-RSS-5-BSR-V1.0" TARGET_NAME = "MOON" INSTRUMENT_HOST_NAME = "CLEMENTINE 1" INSTRUMENT_NAME = "RADIO SCIENCE SUBSYSTEM" DSN_STATION_NUMBER = 14 PRODUCT_CREATION_TIME = 1998-03-17T05:10:57 PRODUCT_TYPE = FND PRODUCT_ID = "GN1.TAB" ORIGINAL_PRODUCT_ID = "40991836.GN1" ^HEADER_TABLE = "(GN1.TAB,1)" ^DATA_TABLE = "(GN1.TAB,2)" START_TIME = 1994-04-09T18:36:45 STOP_TIME = 1994-04-09T18:52:45 SOFTWARE_NAME = "GAIN;1997-06-08" DESCRIPTION = " This file contains double precision complex time samples from the Clementine bistatic radar experiment. These samples cover the observing time when anomalous backscatter from the lunar South Pole would have been most easily detected. This file is the RCP output from the GAIN stage of processing. In this stage corrections to the end-to-end system gain were made so that the output sample stream was continuous with full dynamic range. Most of the gain adjustments were for changes in attenuator settings in the receiver hardware; but long term drifts were corrected and a scale factor was applied to bring the RCP and LCP channels into absolute agreement over the full experimental run. Coefficients used to correct the sample voltage amplitude can be found in file G099C141.TAB in the CALIB directory of this archival data set." OBJECT = HEADER_TABLE INTERCHANGE_FORMAT = BINARY ROWS = 1 COLUMNS = 29 ROW_BYTES = 256 ROW_SUFFIX_BYTES = 1792 DESCRIPTION = " HEADER_TABLE provides identification of both data and processing. Included are date/time of original experiment; original input file name; DSN antenna used; frequency band; polarization; previous processing program name, version, and run time; time tags for the data and processing; sampling and processing parameters; and a comment field. Columns are not delimited within the table except by their byte boundaries. The defined columns occupy 256 bytes; the remaining 1792 bytes in the record are not defined." OBJECT = COLUMN NAME = "EXPERIMENT TIME" COLUMN_NUMBER = 1 START_BYTE = 1 DATA_TYPE = MSB_INTEGER ITEMS = 6 ITEM_BYTES = 4 ITEM_OFFSET = 4 DESCRIPTION = "The time at which data acquisition began; the time of the first sample on the original data tape. Given as year, month, day, hour, minute, and second in six 4-byte fields. Time is UTC at the Earth receiving station." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "ODR FILE NAME" COLUMN_NUMBER = 2 START_BYTE = 25 DATA_TYPE = CHARACTER BYTES = 20 DESCRIPTION = "The name of the file of Original Data Records (ODR file) assigned at Stanford. File name has the format ydddhhmm.ODR where y is the least significant digit of the year, ddd is the day-of-year, hh is the hour at which data acquisition began, and mm is the minute at which data acquisition began. Suffix ODR may be upper or lower case. File name is left justified in the field; remaining 8 characters are undefinied (often set to ASCII NULL (binary 0))." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "ANTENNA NUMBER" COLUMN_NUMBER = 3 START_BYTE = 45 DATA_TYPE = MSB_INTEGER BYTES = 4 DESCRIPTION = "The number of the DSN antenna (or Front End Assembly, FEA). Common values include 14, 43, and 63 (the 70 meter antennas." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "FREQUENCY BAND" COLUMN_NUMBER = 4 START_BYTE = 49 DATA_TYPE = CHARACTER BYTES = 4 DESCRIPTION = "The frequency band of the original data. Common values include S (S-band, near 2300 MHz) and X (X-band, near 8400 MHz). Single character is left justified in the field ; remaining 3 characters are undefined (often set to ASCII NULL(binary 0))." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "POLARIZATION" COLUMN_NUMBER = 5 START_BYTE = 53 DATA_TYPE = CHARACTER BYTES = 4 DESCRIPTION = "The polarization of the original data. Common values include R (right-circularly polarized) and L (left-circularly polarized). Single character is left justified in the field; remaining 3 characters are undefined (often set to ASCII NULL(binary 0))." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "TRANSMIT FREQUENCY" COLUMN_NUMBER = 6 START_BYTE = 57 DATA_TYPE = IEEE_REAL BYTES = 8 UNIT = "HERTZ" DESCRIPTION = "The transmitted frequency at the spacecraft; sometimes entered as an approximate number. If not known at the time of processing, set to 0." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "PROGRAM" COLUMN_NUMBER = 7 START_BYTE = 65 DATA_TYPE = CHARACTER BYTES = 16 DESCRIPTION = "Name of the program which created this file. Left justified in the field, which is padded with ASCII BLANK characters." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "VERSION" COLUMN_NUMBER = 8 START_BYTE = 81 DATA_TYPE = CHARACTER BYTES = 16 DESCRIPTION = "Version of the program which created this file. Left justified in the field, which is padded with ASCII BLANK characters." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "PROCESSING TIME" COLUMN_NUMBER = 9 START_BYTE = 97 DATA_TYPE = MSB_INTEGER ITEMS = 6 ITEM_BYTES = 4 ITEM_OFFSET = 4 DESCRIPTION = "The time at which PROGRAM generated this file. Given as year, month, day, hour, minute, and second in six 4-byte fields." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "REFERENCE TIME" COLUMN_NUMBER = 10 START_BYTE = 121 DATA_TYPE = IEEE_REAL BYTES = 8 UNIT = "SECOND" DESCRIPTION = "Reference time for processing. Used by programs which adjust sample frequency/phase so that all files are corrected with respect to the same phase reference. Commonly set to 0 (UTC midnight) in the first processing step; but some succeeding programs may add small offsets. Units are seconds from midnight." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "START TIME" COLUMN_NUMBER = 11 START_BYTE = 129 DATA_TYPE = IEEE_REAL BYTES = 8 UNIT = "SECOND" DESCRIPTION = "Time of the first sample in the first row of DATA_TABLE. Should be very close to EXPERIMENT TIME. Units are seconds from UTC midnight." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "END TIME" COLUMN_NUMBER = 12 START_BYTE = 137 DATA_TYPE = IEEE_REAL BYTES = 8 UNIT = "SECOND" DESCRIPTION = "Time of the first sample in the last row of DATA_TABLE. Units are seconds from UTC midnight." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SAMPLING INTERVAL" COLUMN_NUMBER = 13 START_BYTE = 145 DATA_TYPE = IEEE_REAL BYTES = 8 UNIT = "SECOND" DESCRIPTION = "Spacing between complex time samples in this file." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "SCALE FACTOR" COLUMN_NUMBER = 14 START_BYTE = 153 DATA_TYPE = IEEE_REAL BYTES = 8 DESCRIPTION = "A scale factor which should be applied to sample values if end-to-end amplitude preservation is desired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "DECIMATION RATIO" COLUMN_NUMBER = 15 START_BYTE = 161 DATA_TYPE = MSB_INTEGER BYTES = 4 DESCRIPTION = "The factor by which the sampling rate has been reduced in a digital filtering program. Usually a power of two. Set to 1 if there is no bandwidth reduction." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "FIRST FILTER BIN" COLUMN_NUMBER = 16 START_BYTE = 165 DATA_TYPE = MSB_INTEGER BYTES = 4 DESCRIPTION = "The number of the first frequency bin saved in a digital filtering program. Set to 1 if there is no bandwidth reduction. Example: If complex time samples are to be digitally filtered in FFTs of size 1024 and the user wants to extract the central quarter of the original passband, then DECIMATION_RATIO = 4 and FIRST_FILTER_BIN = 385 Bins 385-640 represent the central 25 percent of each 1024-point spectrum." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "RECORD LENGTH" COLUMN_NUMBER = 17 START_BYTE = 169 DATA_TYPE = MSB_INTEGER BYTES = 4 UNIT = BYTE DESCRIPTION = "The size of each record in the file." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "BITS PER SAMPLE" COLUMN_NUMBER = 18 START_BYTE = 173 DATA_TYPE = MSB_INTEGER BYTES = 4 UNIT = BYTE DESCRIPTION = "The number of bits required to store each sample in the file. Usually 128 for files in FND format." END_OBJECT = COLUMN OBJECT = COLUMN NAME = "COMMENT" COLUMN_NUMBER = 19 START_BYTE = 177 DATA_TYPE = CHARACTER BYTES = 80 DESCRIPTION = "A user-provided comment at the time PROGRAM was run." END_OBJECT = COLUMN END_OBJECT = HEADER_TABLE OBJECT = DATA_TABLE INTERCHANGE_FORMAT = BINARY ROWS = 187500 COLUMNS = 1 ROW_BYTES = 2048 DESCRIPTION = " DATA_TABLE contains equally-space complex time samples from a previous stage of processing. Each row in the table contains 128 double precision complex time samples. The spacing between the last sample in one row and the first sample in the next is the same as between samples in a single row. Entries in HEADER_TABLE define start time, sample spacing, etc." OBJECT = COLUMN NAME = "DATA SAMPLES" COLUMN_NUMBER = 1 START_BYTE = 1 DATA_TYPE = IEEE_REAL ITEMS = 128 ITEM_BYTES = 128 ITEM_OFFSET = 128 DESCRIPTION = "Complex time samples after processing by PROGRAM. Each item includes a double precision real part and a double precision imaginary part." END_OBJECT = COLUMN END_OBJECT = DATA_TABLE END