Data Set Information
DATA_SET_NAME ASTEROID RADAR V17.0
DATA_SET_ID EAR-A-5-DDR-RADAR-V17.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION
Data Set Overview : This data set is intended to include all published groundbased asteroid radar detections through Jan. 24, 2011. These entries were extracted from the compilation of published and unpublished asteroid radar detections, established by Steven J. Ostro and currently maintained by Lance A.M. Benner at http://echo.jpl.nasa.gov. Disc-integrated radar properties have been collected from the published papers and added to the file by Carol Neese.  Modification History : The radar data set was first introduced into PDS at the April 1994 asteroid data sets review, and has been updated yearly since that time. Updates consist in adding entries for asteroid radar detections published since the previous update. The 1997 update added radar albedos, and these have continued to be added in subsequent updates. Prior to version 10.0, the data set included unpublished detections. Starting with version 10.0, only published detections are included.  Parameters : An entry for each detection reports radar cross-section, circular polarization ratio and radar albedo, if known, error values for these parameters, year of observation, and the reference in which the observations were reported. There is also a flag indicating whether a shape model is reported.  Ancillary Data : The references of the papers in which the asteroid radar detections were reported are compiled in the file 'radarref.tab'. For a complete list including unpublished asteroid detections, see the file 'astradarhist0111.htm' in the document directory.
DATA_SET_RELEASE_DATE 2011-05-31T00:00:00.000Z
START_TIME 1968-01-01T12:00:00.000Z
STOP_TIME 2011-01-24T12:00:00.000Z
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 VARGBTEL
INSTRUMENT_NAME VARIOUS GROUND-BASED DETECTORS
INSTRUMENT_ID VARGBDET
INSTRUMENT_TYPE UNKNOWN
NODE_NAME Small Bodies
ARCHIVE_STATUS SUPERSEDED
CONFIDENCE_LEVEL_NOTE
Confidence Level Overview : The confidence level of each data value reported is reflected in the uncertainty value in the same entry. Further information about the observations can be obtained by consulting the original reference for each entry.  Data Coverage and Quality : This data set is intended to include all published groundbased radar detections of asteroids. It is complete through Jan 24, 2011. If an item of data is missing from the table (appearing as a null value such as 9.99), this indicates that the data item is not available from the published paper. For example, for monostatic radar observations, circular polarization ratio cannot be derived, so it is left blank. In some cases, the data provided in the paper are too complex to be presented in the table, as in the case of a time-series of values. In case of questions, the original papers should be consulted.
CITATION_DESCRIPTION Neese, C., Benner, L.A.M., and Ostro, S.J., Eds., Asteroid Radar V17.0. EAR-A-5-DDR-RADAR-V17.0. NASA Planetary Data System, 2011.
ABSTRACT_TEXT This data set is intended to include all published groundbased asteroid radar detections. The file is based on the collection of asteroid radar detections established by Steven J. Ostro and currently maintained by Lance A.M. Benner. The file includes disc-integrated radar properties extracted from the published papers.
PRODUCER_FULL_NAME CAROL NEESE
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