PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 238 FILE_RECORDS = 810 DATA_SET_ID = "EAR-C-PHOT-3-RDR-LOWELL-COMET-DB-V1.0" PRODUCT_ID = "LOCD-LOCDFLUX-199801" PRODUCT_NAME = "LOCD: Fluxes" PRODUCT_CREATION_TIME = 1998-01-08T23:49:07Z TARGET_NAME = "COMET" START_TIME = 1976-08-12T06:24:28.800 STOP_TIME = 1991-10-11T11:15:21.600 INSTRUMENT_HOST_NAME = "LOWELL OBSERVATORY" INSTRUMENT_NAME = "PHOTOMETER" OBSERVER_FULL_NAME = "A'HEARN,M/ET AL." ^TABLE = "locdflux.tab" OBJECT = TABLE ROWS = 810 ROW_BYTES = 238 COLUMNS = 29 INTERCHANGE_FORMAT = "ASCII" OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "PERIODIC_NUMBER" START_BYTE = 1 BYTES = 3 FORMAT = "I3" DATA_TYPE = "ASCII_INTEGER" DESCRIPTION = "Periodic comet number, or blank if this is either not a short-period comet or has not yet been numbered" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "COMET_TYPE" START_BYTE = 4 BYTES = 1 FORMAT = "A1" DATA_TYPE = "CHARACTER" DESCRIPTION = "A one-character code indicating the type of comet: C non-periodic comet D defunct comet P periodic comet This field is separated from the COMET_NAME by a slash (/)." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "COMET_NAME" START_BYTE = 6 FORMAT = "A25" DATA_TYPE = "CHARACTER" BYTES = 25 DESCRIPTION = "Full name of the comet" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "IAU_DESIGNATION" START_BYTE = 32 BYTES = 7 DATA_TYPE = "CHARACTER" FORMAT = "A7" DESCRIPTION = "Official IAU discovery designation of the object" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "OLD_IAU_PROV_ID" START_BYTE = 41 FORMAT = "A6" DATA_TYPE = "CHARACTER" BYTES = 6 MISSING_CONSTANT = "---" DESCRIPTION = "IAU provisional comet designation in the old system, if known" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "OBSERVATION_YEAR" START_BYTE = 48 FORMAT = "I4" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Four-digit year of observation" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "OBSERVATION_MONTH" START_BYTE = 53 FORMAT = "I2" DATA_TYPE = "ASCII_INTEGER" BYTES = 2 DESCRIPTION = "2-digit month of observation" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "OBSERVATION_DAY" START_BYTE = 56 FORMAT = "F6.3" DATA_TYPE = "ASCII_REAL" BYTES = 6 DESCRIPTION = "Day-in-month of observation, with decimal fraction of a day" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "OH_WAVELENGTH" START_BYTE = 63 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure OH. For wavelength 3085, the nominal bandwidth was 75A and for wavelength 3115 the nominal bandwidth was 170A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "OH_FLUX" START_BYTE = 68 FORMAT = "E9.2" UNIT = "ERG/CM/CM/S" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total flux in the 0-0 emission band of the OH A-X system. The flux is in units of erg/cm^2/s." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "OH_UNCERTAINTY" START_BYTE = 78 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "NH_WAVELENGTH" START_BYTE = 88 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure NH. For wavelength 3365, the nominal bandwidth was 70A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "NH_FLUX" START_BYTE = 93 FORMAT = "E9.2" UNIT = "ERG/CM/CM/S" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total flux in the Delta-v=0 sequence of the A-X system of NH. To the precision available, this is equal to the flux in the 0-0 band. The flux is in units of erg/cm^2/s." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "NH_UNCERTAINTY" START_BYTE = 103 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "CN_WAVELENGTH" START_BYTE = 113 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure CN. For wavelength 3871, the nominal bandwidth was 50A. For 3870, the nominal bandwidth was 26A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "CN_FLUX" START_BYTE = 118 FORMAT = "E9.2" UNIT = "ERG/CM/CM/S" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total flux in the Delta-v=0 sequence of the B-X system of CN. Both the 0-0 and 1-1 bands are included in the observed flux. However, because the strength of the 1-1 band is an order of magnitude lower than the 0-0 band, about 900f this flux is due to the 0-0 band. The flux is in units of erg/cm^2/s." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "CN_UNCERTAINTY" START_BYTE = 128 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "C3_WAVELENGTH" START_BYTE = 138 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure C3. For wavelength 4060, the nominal bandwidth was 70A and for wavelength 4045, the nominal bandwidth was 21A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 19 NAME = "C3_FLUX" START_BYTE = 143 FORMAT = "E9.2" UNIT = "ERG/CM/CM/S" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Flux from a portion of the A-X Swings system of C3 in units of erg/cm^2/s." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 20 NAME = "C3_UNCERTAINTY" START_BYTE = 153 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 21 NAME = "C2_WAVELENGTH" START_BYTE = 163 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure C2. For wavelength 5140, the nominal bandwidth was 90A and for wavelength 5130, the nominal bandwidth was 73A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 22 NAME = "C2_FLUX" START_BYTE = 168 FORMAT = "E9.2" UNIT = "ERG/CM/CM/S" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total flux in the Delta-v=0 sequence of the Swan (d-a) system of C2." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 23 NAME = "C2_UNCERTAINTY" START_BYTE = 178 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 24 NAME = "UV_CONT_WAVELENGTH" START_BYTE = 188 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure the ultraviolet continuum. For wavelength 3650, the nominal bandwidth was 80A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 25 NAME = "UV_CONT_FLUX" START_BYTE = 193 FORMAT = "E9.2" UNIT = "ERG/CM^2/S/A" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total UV continuum flux in units of erg/cm^2/s/Angstrom. Note that This filter is contaminated by the short-wavelength wing of the C3 emission band complex, but these data have not been corrected for this." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 26 NAME = "UV_CONT_UNCERTAINTY" START_BYTE = 203 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 27 NAME = "B_CONT_WAVELENGTH" START_BYTE = 213 FORMAT = "I4" UNIT = "ANGSTROMS" DATA_TYPE = "ASCII_INTEGER" BYTES = 4 DESCRIPTION = "Nominal central wavelength of filter used to measure the blue continuum. For wavelength 4845, the nominal bandwidth was 65A and for 5240 the nominal bandwidth was 72A." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 28 NAME = "B_CONT_FLUX" START_BYTE = 218 FORMAT = "E9.2" UNIT = "ERG/CM^2/S/A" INVALID_CONSTANT = 1.00E+32 DATA_TYPE = "ASCII_REAL" BYTES = 9 DESCRIPTION = "Total Blue continuum flux in units of erg/cm^2/s/Angstrom. This filter is noticeably contaminated by the high vibrational and rotational components of the Delta-v=0 sequence of the C2." END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 29 NAME = "B_CONT_UNCERTAINTY" START_BYTE = 228 FORMAT = "F9.3" INVALID_CONSTANT = 999.999 DATA_TYPE = "ASCII_REAL" BYTES = 9 UNIT = "PERCENT" DESCRIPTION = "Statistical uncertainty in measured flux as described in the locd.cat file. A first-order correction has been applied based on the C2 flux." END_OBJECT = COLUMN END_OBJECT = TABLE END