PDS_VERSION_ID = PDS3 /* File Characteristics */ RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 70 FILE_RECORDS = 14 /* Data Object Pointers */ ^TABLE = "sawsolar.tab" /* Identification Keywords */ DATA_SET_ID = "EAR-A-3-RDR-SAWYER-ASTEROID-SPECTRA-V1.0" PRODUCT_NAME = "Sawyer Asteroid Spectra Solar Stars" PRODUCT_ID = "SAWYER-SAWSOLAR-199803" INSTRUMENT_HOST_NAME = "N/A" INSTRUMENT_NAME = "N/A" TARGET_NAME = ASTEROID START_TIME = 1983-09-15 STOP_TIME = 1990-07-14 PRODUCT_CREATION_TIME = 1998-03-23 /* Peer Review Date */ /* Data Object Descriptions */ OBJECT = TABLE ROWS = 14 ROW_BYTES = 70 INTERCHANGE_FORMAT = ASCII COLUMNS = 15 DESCRIPTION = "This is a table of the solar analog stars used by Sawyer in the spectroscopic survey of asteroids. The information has been taken from Table 2.1 of Sawyer (1991). Works cited in the notes to this table include Hardorp, J. 1978. The sun among the stars. I. A search for solar spectral analogs. Astr. Ap. 63, 383-390. Hardorp, J. 1982. The sun among the stars. V. A second search for solar spectral analogs. The Hyades distance. Astr. Ap. 105, 120-132. " OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "SOLAR ANALOG ID" DESCRIPTION = "Each solar analog star is identified with an integer for the purpose of reference in the index of observations." DATA_TYPE = ASCII_INTEGER START_BYTE = 1 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "HR NUMBER" DESCRIPTION = "The star's number in the Yale Bright Star Catalog." DATA_TYPE = ASCII_INTEGER START_BYTE = 4 BYTES = 4 FORMAT = I4 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "HD NUMBER" DATA_TYPE = ASCII_INTEGER START_BYTE = 9 BYTES = 6 FORMAT = I6 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "STAR NAME" DESCRIPTION = "The star's name or other designation." DATA_TYPE = CHARACTER START_BYTE = 17 BYTES = 10 FORMAT = A10 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "VISUAL MAGNITUDE" DESCRIPTION = "The star's apparent visual magnitude, taken from Hardorp (1982), Table 1." DATA_TYPE = ASCII_REAL START_BYTE = 28 BYTES = 4 FORMAT = "F4.2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "SPECTRAL TYPE" DESCRIPTION = "The star's spectral type, taken from Hardorp (1982), Table 1." DATA_TYPE = CHARACTER START_BYTE = 33 BYTES = 8 FORMAT = A8 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "HARDORP CLASS" DESCRIPTION = "Hardorp classes from Hardorp (1978): 1 - Spectra indistinguishable from solar. 2 - Spectra potentially equal to solar. 3 - Spectra very close to solar. 6 - Some absorption features appreciably weaker than solar. " DATA_TYPE = ASCII_INTEGER START_BYTE = 42 BYTES = 1 FORMAT = I1 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "NOTE" DESCRIPTION = " A - Hardorp (1982) Figure 6, no significant color difference from solar. B - Hardorp (1982) Table 1, significantly weaker features than solar. C - Hardorp (1982) Figure 6, no significant color difference from solar, but Table 1 called it a 'close case' and indicated it may be double. D - SAO G0 star used for individual asteroid observations due to proximity on sky; not classified by Hardorp. " DATA_TYPE = CHARACTER START_BYTE = 44 BYTES = 1 FORMAT = A1 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "RIGHT ASCENSION HOURS" DESCRIPTION = "Hours of right ascension J2000 for the star." DATA_TYPE = ASCII_INTEGER START_BYTE = 46 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "RIGHT ASCENSION MINUTES" DESCRIPTION = "Minutes of right ascension J2000." DATA_TYPE = ASCII_INTEGER START_BYTE = 49 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "RIGHT ASCENSION SECONDS" DESCRIPTION = "Seconds of right ascension J2000." DATA_TYPE = ASCII_REAL START_BYTE = 52 BYTES = 5 FORMAT = "F5.2" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "DECLINATION SIGN" DESCRIPTION = "Sign of declination J2000." DATA_TYPE = CHARACTER START_BYTE = 58 BYTES = 1 FORMAT = A1 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "DECLINATION DEGREES" DESCRIPTION = "Degrees of declination J2000." DATA_TYPE = ASCII_INTEGER START_BYTE = 59 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "DECLINATION MINUTES" DESCRIPTION = "Minutes of declination J2000." DATA_TYPE = ASCII_INTEGER START_BYTE = 62 BYTES = 2 FORMAT = I2 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "DECLINATION SECONDS" DESCRIPTION = "Seconds of declination J2000." DATA_TYPE = ASCII_REAL START_BYTE = 65 BYTES = 4 FORMAT = "F4.1" END_OBJECT = COLUMN END_OBJECT = TABLE END