Data Set Information
DATA_SET_NAME ASTEROID DYNAMICAL FAMILIES V3.0
DATA_SET_ID EAR-A-5-DDR-FAMILY-V3.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : This dataset contains the asteroid dynamical family classifications contained in Zappala, et al. (1995) [ZAPPALAETAL1995]. These are based on the heirarchical clustering method applied to the proper elements of Milani and Knezevic (1994) [MILANI&KNEZEVIC1994]. 12,487 asteroids, numbered and unnumbered, are included. The dataset also includes a compilation of the historical asteroid families. Parameters : For each asteroid included in the analysis, the following parameters are provided: o The proper elements a', e', and sin(i') of version 6.8.5 of the fully analytical theory of Milani and Knezevic, published in Milani and Knezevic (1994) [MILANI&KNEZEVIC1994]. These are the proper elements used as input to the hierarchical clustering analysis. o The name of the family to which the asteroid was assigned; this is blank for asteroids not assigned to a family. The family name is identical to the name of the lowest-numbered asteroid in the family. o A flag indicating whether the asteroid belongs to a nominal family (F) or a clump (C). These terms are defined in Zappala, et al. (1995) [ZAPPALAETAL1995]. o A quality code indicating the reliability of the family assignment Data : The complete Zappala family classifications are found in the file 'family.tab'. The historical classifications are in the file 'hisfam.tab'. Modification History : This data set was first archived in 1994, including the family classifications of Zappala et al. (1990) [ZAPPALAETAL1990B] as well as several historical classifications. The data set was updated in 1997, using the most recent and extensive classifications of Zappala et al. (1995) [ZAPPALAETAL1995]. A more complete set of historical classifications have been added for the 1998 update.
DATA_SET_RELEASE_DATE 1998-03-23T00:00:00.000Z
START_TIME 1965-01-01T12:00:00.000Z
STOP_TIME N/A (ongoing)
MISSION_NAME SUPPORT ARCHIVES
MISSION_START_DATE 2004-03-22T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME ASTEROID
TARGET_TYPE ASTEROID
INSTRUMENT_HOST_ID PUBLIT
INSTRUMENT_NAME COMPILATION
INSTRUMENT_ID COMPIL
INSTRUMENT_TYPE UNKNOWN
NODE_NAME Small Bodies
ARCHIVE_STATUS SUPERSEDED
CONFIDENCE_LEVEL_NOTE Review : This data set underwent peer review on March 23, 1998.
CITATION_DESCRIPTION Citation TBD
ABSTRACT_TEXT This dataset contains the asteroid dynamical family classifications contained in Zappala, et al. (1995) [ZAPPALAETAL1995]. These are based on the heirarchical clustering method applied to the proper elements of Milani and Knezevic (1994) [MILANI&KNEZEVIC1994]. 12,487 asteroids, numbered and unnumbered, are included.
PRODUCER_FULL_NAME CAROL NEESE
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