PDS_VERSION_ID = PDS3 /* File Characteristics */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 100 FILE_RECORDS = 126 /* Data Object Pointers */ ^TABLE = "scas.tab" /* Identification Keywords */ DATA_SET_ID = "EAR-A-3-RDR-SCAS-V1.0" PRODUCT_NAME = "Seven Color Asteroid Survey" PRODUCT_ID = "SCAS-SCAS-199604" INSTRUMENT_HOST_NAME = "N/A" INSTRUMENT_NAME = "N/A" TARGET_NAME = ASTEROID START_TIME = 1992 STOP_TIME = 1994 PRODUCT_CREATION_TIME = 1996-03-29 /* Peer Review Date */ RECORD_FORMAT = "(a5,12(1x,f5.3),1x,f7.4,1x,f6.4)" /* Data Object Descriptions */ OBJECT = TABLE ROWS = 126 ROW_BYTES = 100 INTERCHANGE_FORMAT = ASCII COLUMNS = 15 DESCRIPTION = "This table presents the Seven Color Asteroid Survey (SCAS). The data were taken at the IRTF from 1992 through 1994. The SCAS filter system was specifically designed to capture the essential mineralogic information present in infrared asteroid spectra. It is composed of seven broad-band filters lettered A through G in order of increasing wavelength, covering the spectral region 0.9 to 2.3 microns. Filter: Central Wavelength: FWHM: A 0.913 microns 0.090 microns B 1.050 0.080 C 1.300 0.105 D 1.550 0.135 E 1.650 0.140 F 2.160 0.170 G 2.300 0.200 Note: The filter transmission curves published in [CLARKETAL95] show the factory specifications in filter transmissions for uncooled conditions. When cooled and placed inside the RC-2 dewar at the IRTF, the SCAS filter transmissions are decreased by at least 200n average, with no significant shift in band center position. A value of zero in any entry of this table indicates a null value. Zero was chosen as a null value because it cannot be confused with a valid data value. " OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "ASTEROID NUMBER" DESCRIPTION = "Catalog number of the asteroid." DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 5 FORMAT = I5 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "B/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 7 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "B/A ERROR" DESCRIPTION = "RMS error in the B/A index." DATA_TYPE = ASCII_REAL START_BYTE = 13 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "C/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 20 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "C/A ERROR" DESCRIPTION = "RMS error in the C/A index." DATA_TYPE = ASCII_REAL START_BYTE = 26 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "D/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 33 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "D/A ERROR" DESCRIPTION = "RMS error in the D/A index." DATA_TYPE = ASCII_REAL START_BYTE = 39 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "E/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 46 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "E/A ERROR" DESCRIPTION = "RMS error in the E/A index." DATA_TYPE = ASCII_REAL START_BYTE = 52 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "F/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 59 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "F/A ERROR" DESCRIPTION = "RMS error in the F/A index." DATA_TYPE = ASCII_REAL START_BYTE = 65 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "G/A INDEX" DATA_TYPE = ASCII_REAL START_BYTE = 72 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "G/A ERROR" DESCRIPTION = "RMS error in the G/A index." DATA_TYPE = ASCII_REAL START_BYTE = 78 BYTES = 5 FORMAT = "F5.3" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "B-D INDEX" DESCRIPTION = "This band difference, called 'B-D' for convenience, is actually the difference between the normalized band values, i.e. 'B-D' = B/A - D/A = (B-D)/A." DATA_TYPE = ASCII_REAL START_BYTE = 85 BYTES = 7 FORMAT = "F7.4" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "B-D ERROR" DESCRIPTION = "RMS error in the B-D index." DATA_TYPE = ASCII_REAL START_BYTE = 93 BYTES = 6 FORMAT = "F6.4" MISSING_CONSTANT = 0.0 END_OBJECT = COLUMN END_OBJECT = TABLE END