PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 136 FILE_RECORDS = 3824 ^TABLE = "LCS.TAB" DATA_SET_ID = "EAR-C-IDS/LCS-3-RDR-BORRELLY-MCDNLD-V1.0" PRODUCT_NAME = "LARGE CASSEGRAIN SPECTROGRAPH OBSERVATIONS OF COMET 19P/BORRELLY" PRODUCT_ID = "BORRMCD-LCS-199809" INSTRUMENT_HOST_NAME = "MCDONALD OBSERVATORY 2.7M HARLAN J. SMITH TELESCOPE" INSTRUMENT_NAME = "LARGE CASSEGRAIN SPECTROGRAPH" TARGET_NAME = "19P/BORRELLY (1904 Y2)" START_TIME = 1981-01-03T03:45:00 STOP_TIME = 1994-12-06T09:51:00 PRODUCT_CREATION_TIME = 1998-09-16 OBJECT = TABLE INTERCHANGE_FORMAT = "ASCII" NAME = "LCS_OBSERVATIONS" ROWS = 3824 ROW_BYTES = 136 COLUMNS = 16 DESCRIPTION = "Observations made with the Large Cassegrain Spectrograph (LCS) at McDonald Observatory. This is a long-slit instrument and data are presented for many positions along the slit as well as for multiple slit positions" OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "DATE" START_BYTE = 1 BYTES = 10 DATA_TYPE = "DATE" FORMAT = "A10" DESCRIPTION = "Date of observation in the format YYYY-MM-DD" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "RA_OFFSET" START_BYTE = 13 BYTES = 7 DATA_TYPE = "ASCII_INTEGER" FORMAT = "I7" UNIT = "KM" DESCRIPTION = "Offset in right ascension (km) from the photocenter of the comet at the wavelength of the TV guiding system (approx. 5000 Angstroms) to the position of the center of the scanner aperture" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "DEC_OFFSET" START_BYTE = 22 BYTES = 7 DATA_TYPE = "ASCII_INTEGER" FORMAT = "I7" DESCRIPTION = "Offset in declination (km) from the photocenter of the comet at the wavelength of the TV guiding system (approx. 5000 Angstroms) to the position of the center of the scanner aperture" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "LOG_C2_OFFSET" START_BYTE = 34 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance (km) for C2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "LOG_C2_1" START_BYTE = 41 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of C2 triplet radicals [cm^-2] at the offset position as deduced from the Delta-v=+1 sequence of the San bands (4737 Angstroms)" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "LOG_C2_0" START_BYTE = 49 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of C_2 triplet radicals [cm^-2] at the offset position as deduced from the Delta-v=0 sequence of the Swan bands (5165 Angstroms)" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "LOG_OH_OFFSET" START_BYTE = 58 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance [km] for OH" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "LOG_OH" START_BYTE = 65 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of OH [cm^-2] at the offset position as deduced from the Delta-v=0 sequence of the A-X system at 3085 Angstroms" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "LOG_NH_OFFSET" START_BYTE = 74 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance [km] for NH" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "LOG_NH" START_BYTE = 81 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of NH [cm^-2] at the offset position as deduced from the Delta-v=0 sequence of the A-X system at 3365 Angstroms" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "LOG_CN_OFFSET" START_BYTE = 90 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance [km] for CN" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "LOG_CN" START_BYTE = 97 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of CN radicals [cm^-2] at the offset position as deduced from the Delta-v=0 sequence of the B-X system of CN (3883 Angstroms)" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "LOG_C3_OFFSET" START_BYTE = 106 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance [km] for C3" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "LOG_C3" START_BYTE = 113 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of C3 radicals [cm^-2] at the offset position as deduced from the extended sequence of emission system of C3 at 4050 Angstroms" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "LOG_CH_OFFSET" START_BYTE = 122 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" DESCRIPTION = "Logarithm base 10 of the total offset distance [km] for CH" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "LOG_CH" START_BYTE = 130 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" MISSING_CONSTANT = 0.000 DESCRIPTION = "Logarithm base 10 of the column density of CH radicals [cm^-2] at the offset position as deduced from the Delta-v=0 sequence of the A-X system of CH (4315 Angstroms)" END_OBJECT = COLUMN END_OBJECT = TABLE END