PDS_VERSION_ID = PDS3 RECORD_TYPE = "FIXED_LENGTH" RECORD_BYTES = 118 FILE_RECORDS = 2583 ^TABLE = "taxonomy05.tab" DATA_SET_ID = "EAR-A-5-DDR-TAXONOMY-V5.0" PRODUCT_NAME = "ASTEROID TAXONOMY" PRODUCT_ID = "TAXONOMY05_TAB" INSTRUMENT_HOST_ID = "VARGBTEL" INSTRUMENT_HOST_NAME = "VARIOUS GROUND-BASED TELESCOPES" INSTRUMENT_ID = "VARGBDET" INSTRUMENT_NAME = "VARIOUS GROUND-BASED DETECTORS" TARGET_NAME = "ASTEROID" TARGET_TYPE = "ASTEROID" START_TIME = 1989-01-01 STOP_TIME = 2002-01-01 PRODUCT_CREATION_TIME = 2005-12-30 /* File uploaded to OLAF */ CITATION_DESC = "Neese, C., Eds., Asteroid Taxonomy. EAR-A-5-DDR-TAXONOMY-V5.0:TAXONOMY05_TAB. NASA Planetary Data System, 2005." REFERENCE_KEY_ID = {"BARUCCIETAL1987", "BUS&BINZEL2002B", "HOWELLETAL1994", "TEDESCOETAL1989", "THOLEN1989", "XUETAL1995"} OBJECT = TABLE ROWS = 2583 ROW_BYTES = 118 INTERCHANGE_FORMAT = "ASCII" COLUMNS = 18 DESCRIPTION = "This data set contains taxonomic classifications from the following sources: Tholen, D. J. 1989. Asteroid taxonomic classifcations. In Asteroids II (R. P. Binzel, T. Gehrels, and M. S. Matthews, Eds.), pp. 1139-1150. Univ. of Arizona Press, Tucson. [THOLEN1989] Barucci, M. A., M. T. Capria, A. Coradini, and M. Fulchignoni 1987. Classification of asteroids using G-mode analysis. Icarus 72, 304-324. [BARUCCIETAL1987] Tedesco, E. F., J. G. Williams, D. L. Matson, G. J. Veeder, J. C. Gradie, and L. A. Lebofsky 1989. A three-parameter asteroid taxonomy. Astron. J. 97, 580-606. [TEDESCOETAL1989] Howell, E. S., E. Merenyi, and L. A. Lebofsky 1994. Classification of asteroid spectra using a neural network. J. Geophys. Res. 99, 10847-10865. [HOWELLETAL1994] Xu, S., R. P. Binzel, T. H. Burbine, S. J. Bus 1995. Small main-belt asteroid spectroscopic survey: Initial Results. Icarus 115, 1-35. [XUETAL1995] Bus, S.J. and R.P. Binzel 2002. Phase II of the small main-belt asteroid spectroscopic survey: A feature-based taxonomy. Icarus 158, 146-177. [BUSETAL2002] Lazzaro, D., C.A. Angeli, J.M. Carvano, T. Mothe-Diniz, R. Duffard, and M. Florczak, S3OS2: The visible spectroscopic survey of 820 asteroids, Icarus 172, 179-220, 2004. [LAZARROETAL2004]" OBJECT = COLUMN COLUMN_NUMBER = 1 NAME = "AST_NUMBER" DESCRIPTION = "Asteroid catalog number, if any. This file is sorted on asteroid number, with unnumbered asteroids listed at the end by provisional designation." DATA_TYPE = "ASCII_INTEGER" START_BYTE = 1 BYTES = 6 FORMAT = "I6" MISSING_CONSTANT = -99999 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "AST_NAME" DESCRIPTION = "Asteroid name, if any" DATA_TYPE = "CHARACTER" START_BYTE = 8 BYTES = 17 FORMAT = "A17" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "PROV_ID" DESCRIPTION = "Asteroid provisional designation. This is included only for those object that were unnumbered as of the original compilation." DATA_TYPE = "CHARACTER" START_BYTE = 26 BYTES = 9 FORMAT = "A9" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "THOLEN_CLASS" DESCRIPTION = "Taxonomic classification according to the method of Tholen (1984, 1989). An entry with the value of '***' indicates an object with unusual colors not classifiable into any of the defined classes." DATA_TYPE = "CHARACTER" START_BYTE = 37 BYTES = 6 FORMAT = "A6" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 5 NAME = "THOLEN_PARAM" DESCRIPTION = "Parameters used for the Tholen (1984, 1989) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002)." DATA_TYPE = "CHARACTER" START_BYTE = 44 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 6 NAME = "BARUCCI_CLASS" DESCRIPTION = "Taxonomic classification according to the method of Barucci et al. (1987)" DATA_TYPE = "CHARACTER" START_BYTE = 48 BYTES = 2 FORMAT = "A2" MISSING_CONSTANT = "--" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 7 NAME = "BARUCCI_PARAM" DESCRIPTION = "Parameters used for the Barucci et al. (1987) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002)." DATA_TYPE = "CHARACTER" START_BYTE = 51 BYTES = 2 FORMAT = "A2" MISSING_CONSTANT = "--" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 8 NAME = "TEDESCO_CLASS" DESCRIPTION = "Taxonomic classification according to the method of Tedesco et al. (1989)" DATA_TYPE = "CHARACTER" START_BYTE = 54 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 9 NAME = "TEDESCO_PARAM" DESCRIPTION = "Parameters used for the Tedesco et al. (1989) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002)." DATA_TYPE = "CHARACTER" START_BYTE = 58 BYTES = 2 FORMAT = "A2" MISSING_CONSTANT = "--" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 10 NAME = "HOWELL_CLASS" DESCRIPTION = "Taxonomic classification according to the Howell (1994) method" DATA_TYPE = "CHARACTER" START_BYTE = 61 BYTES = 6 FORMAT = "A6" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 11 NAME = "HOWELL_PARAM" DESCRIPTION = "Parameters used for the Howell et al. (1994) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002). The Howell et al. (1994) classifications are all based on a combination of 8-color (Zellner et al. 1985) and 52-color (Bell et al. 1988) data, resampled at 65 points to provide a more uniform wavelength sampling." DATA_TYPE = "CHARACTER" START_BYTE = 68 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 12 NAME = "SMASS_CLASS" DESCRIPTION = "Taxonomic classification based on the spectra of the SMASS survey (Xu et al. 1995)" DATA_TYPE = "CHARACTER" START_BYTE = 72 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 13 NAME = "SMASS_PARAM" DESCRIPTION = "Parameters used for the Xu et al. (1995) (SMASS) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002). DATA_TYPE = "CHARACTER" START_BYTE = 76 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 14 NAME = "BUS_CLASS" DESCRIPTION = "Taxonomic classification based on the spectra of the SMASSII survey (Bus and Binzel 2002). An entry with a value of '***' indicates the object has an unusual spectrum not classifiable into any of the defined classes." DATA_TYPE = "CHARACTER" START_BYTE = 80 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 15 NAME = "BUS_PARAM" DESCRIPTION = "Parameters used for the Bus and Binzel (2002) (SMASSII) classification. The number indicates how many color indices were used in the classification, and the letter(s) which parameters were used in addition to (or instead of) color indices to arrive at the classification: number the number of color indices used G groundbased radiometric albedo I IRAS radiometric albedo A An albedo of unspecified source was used to eliminate some other possible classes based on the spectrum alone. S The classification is based on a medium resolution spectrum published by Chapman and Gaffey (1979). s The classification is based on a high-resolution spectrum by Xu et al (1995) or Bus and Binzel (2002). DATA_TYPE = "CHARACTER" START_BYTE = 84 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 16 NAME = "COMMENT" DESCRIPTION = "Five entries have a notation in the comment field, indicating a comment about the identification of the object. The comments are given here: The classification for (152) Atala in the original reference is based on data that have been found to be inconsistent with other observations. The current belief is that this object may have been misidentified during the course of the Eight-Color Asteroid Survey, therefore the classification has been changed to 'I' to reflect inconsistent data. The classifications for (2151) Hadwiger and (2422) Perovskaya are based on UBV colors published by Bowell et al. (1979), where they are identified as 1975 EA and 1975 GB, respectively. The classification for 1975 RC is also based on UBV colors published by Bowell et al. (1979), where it is identified as 1975 U2, which is not a proper provisional designation. Efforts to determine the correct identity of this object revealed that 1975 U2 appears to be a designation assigned by C.-I. Lagerkvist for his own personal use. Users should be warned that the identification of 1975 U2 as 1975 RC may be incorrect. The classification for (5145) Pholus listed in the Tholen classification column was taken from Mueller et al. (1992)." DATA_TYPE = "CHARACTER" START_BYTE = 88 BYTES = 21 FORMAT = "A21" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 17 NAME = "S3OS2_CLASS_TH" DESCRIPTION = "S3OS2 taxonomic classification according to the method of [THOLEN1984] (Tholen Ph.D. thesis). For details of how the method was applied, see [LAZZAROETAL2004] (Icarus 172, 179-220.)" DATA_TYPE = "CHARACTER" START_BYTE = 110 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 18 NAME = "S3OS2_CLASS_BB" DESCRIPTION = "S3OS2 taxonomic classification according to the method of [BUS&BINZEL2002] (Icarus 158, 146-177.) For details of how the method was applied, see [LAZZAROETAL2004] (Icarus 172, 179-220.)" DATA_TYPE = "CHARACTER" START_BYTE = 114 BYTES = 3 FORMAT = "A3" MISSING_CONSTANT = "---" END_OBJECT = COLUMN END_OBJECT = TABLE END