PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 34 FILE_RECORDS = 50 DATA_SET_ID = "IHW-C-IRSPEC-3-EDR-HALLEY-V2.0" PRODUCT_ID = "IRSP0022" PRODUCT_NAME = "IHW IR SPECTROSCOPY 222126" PRODUCT_CREATION_TIME = 2006-05-12 INSTRUMENT_HOST_NAME = "IHW INFRARED STUDIES NETWORK" INSTRUMENT_HOST_ID = "IRSN" INSTRUMENT_NAME = "IHW INFRARED SPECTROSCOPY DATA" INSTRUMENT_ID = "IRSPEC" TARGET_NAME = "1P/HALLEY 1 (1682 Q1)" START_TIME = 1986-01-16T01:55 STOP_TIME = "UNK" OBSERVATION_TIME = 1986-01-16T01:55 PROCESSING_LEVEL_ID = "3" OBSERVATION_ID = "222126" OBSERVER_FULL_NAME = "CAMPINS,H" DESCRIPTION = " System code: 25680300 Observatory Info Name: NASA IRTF Location: MAUNA KEA, HAWAII East Longitude: 204.5283 North Latitude: +19.8267 Telescope: 3-M Instrument: IRTF SI:AS PHOTOCONDUCTOR WITH CVF Spectral Range: 8.002-12.880 microns Resolution: 0.1 microns Aperture Size: 8.2 arcseconds Comments from the FITS header: Total observation time was about two hours. DAYTIME REFERENC Campins, H., and Ryan, E. 1989, Astrophys. J., 341, 1059. STDSTARS Beta Peg (primarily), Alpha Lyr (less frequently) Chopping was 60 arcseconds, North-South Halley 16.08/01/86: Heliocentric distance: 0.79 AU, Geocentric distance: 1.42 AU, Phase angle: 42 degrees The data form a 5-row matrix in column-major order where the rows are: 1. Wavelength in microns 2. Halley magnitude 3. Error in Halley magnitude 4. Beta Peg magnitude 5. Extinction coefficient in magnitudes per airmass " NOTE = " The START_TIME listed is actually the OBSERVATION_TIME, i.e., the midpoint of the observation. Exposure times were not reported, so it was not possible to determine the actual starting time of the observation. However, START_TIME is a keyword used to search for data across large sections of the PDS archives, so the midpoint time has been repeated as the START_TIME to prevent these data being lost for want of a more accurate value. " ^TABLE = "IRSP0022.TAB" OBJECT = TABLE INTERCHANGE_FORMAT = "ASCII" ROWS = 50 ROW_BYTES = 34 COLUMNS = 5 OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "WAVELENGTH" START_BYTE = 1 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" UNIT = "MICRON" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "HALLEY_MAGNITUDE" START_BYTE = 8 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" UNIT = "MAGNITUDE" DESCRIPTION = "Observed magnitude of 1P/Halley" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "HALLEY_ERROR" START_BYTE = 15 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" UNIT = "MAGNITUDE" DESCRIPTION = "Error in the observed magnitude of 1P/Halley" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "BETA_PEG_MAGNITUDE" START_BYTE = 21 BYTES = 6 DATA_TYPE = "ASCII_REAL" FORMAT = "F6.3" UNIT = "MAGNITUDE" DESCRIPTION = "Observed magnitude of Beta Pegasi" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "EXTINCTION" START_BYTE = 28 BYTES = 5 DATA_TYPE = "ASCII_REAL" FORMAT = "F5.3" UNIT = "MAGNITUDE/AIRMASS" DESCRIPTION = "Extinction coefficient" END_OBJECT = COLUMN END_OBJECT = TABLE END