Data Set Information
DATA_SET_NAME ASTEROID RADAR V5.0
DATA_SET_ID EAR-A-5-DDR-RADAR-V5.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : This data set is intended to include all groundbased asteroid radar detections. These entries were collected by Steven J. Ostro (1989) [OSTRO1989] and selected data have been provided as collected from the published literature. A null value (e.g., '9.99') in any particular column indicates that the corresponding datum was not available in the published paper. For example, for monostatic radar observations, circular polarization ratio cannot be derived, so the value in this column is '9.99'. 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. Scientific questions about this data set should be directed to Steven J. Ostro, JPL, at the email address 'ostro@echo.jpl.nasa.gov' (effective March 23, 1998). 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 of adding entries for asteroid radar detections made since the previous update and adding full data for detections which have been published since the last update. The 1997 update added radar albedos. Parameters : An entry for each detection reports radar cross-section, circular polarization and radar albedo, if known, error values for these parameters, year of observation, and the reference in which the observations were reported. Processing : No processing has been performed on these data beyond that reported in the published papers from which the data were drawn. Data : This data set comprises a single data table, 'radar.tab', tabulating the parameters listed above. Ancillary Data : The full citations of the papers in which the asteroid radar detections were reported are compiled in the file 'radarref.tab'.
DATA_SET_RELEASE_DATE 1998-03-23T00:00:00.000Z
START_TIME 1968-01-01T12:00:00.000Z
STOP_TIME 1998-01-01T12:00:00.000Z
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 PUBLIT
INSTRUMENT_NAME COMPILATION
INSTRUMENT_ID COMPIL
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ARCHIVE_STATUS SUPERSEDED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. Review : This data set underwent formal external review on March 23, 1998. Data Coverage and Quality : This data set is intended to include all groundbased radar detections of asteroids. It is complete through January 1998. Limitations : This data set is intended to collect the data reported in the published literature, as well as to record the existence of unpublished asteroid radar detections.
CITATION_DESCRIPTION Citation TBD
ABSTRACT_TEXT This data set is intended to include all groundbased asteroid radar detections. These entries were collected by Steven J. Ostro (1989) [OSTRO1989] and selected data have been provided as collected from the published literature. A null value (e.g., '9.99') in any particular column indicates that the corresponding datum was not available in the published paper. For example, for monostatic radar observations, circular polarization ratio cannot be derived, so the value in this column is '9.99'. 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.
PRODUCER_FULL_NAME CAROL NEESE
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