Data Set Information
DATA_SET_NAME ASTEROID LIGHTCURVE DERIVED DATA V10.0
DATA_SET_ID EAR-A-5-DDR-DERIVED-LIGHTCURVE-V10.0
NSSDC_DATA_SET_ID
DATA_SET_TERSE_DESCRIPTION
DATA_SET_DESCRIPTION Data Set Overview : This is a compilation of published rotational parameters for lightcurve data on asteroids, through Feb. 15, 2008. These data files are provided by Alan Harris and Brian D. Warner, Space Science Institute, and Petr Pravec, Astronomical Institute, Czech Republic. The compilation is originally based on that published in [LAGERKVISTETAL1989]: Lagerkvist, C.-I., A.W. Harris, and V. Zappala 1988. Asteroid lightcurve parameters. In 'Asteroids II', Binzel, R.P., T. Gehrels, and M.S. Matthews, Eds. (University of Arizona Press: Tucson) p. 1162, 1989. Note that some asteroids are included which do not have an assigned provisional designation. For this version of the data set, such asteroids are all from a survey carried out at the Subaru telescope by Budi Dermawan of the University of Tokyo, but it is expected that future updates of the data set may contain asteroids from other surveys which do not yet have provisional designations. For such asteroids an alternate survey-assigned designation is given. Parameters : The data files included are listed here with a description of their contents. lcsummary.tab - The summary file includes one entry for each asteroid for which lightcurve observations have been made. Each entry gives the following parameters: rotation period; minimum and maximum amplitude of lightcurve; reliability code; and a flag for binarity. These paramters are selected as the best values known from the published literature. lcdetails.tab - The details file includes one entry for each publication of asteroid lightcurve results, with the same parameters as in the summary file but extracted from the individual publications. There is a reference code referring to the publications list (lc_references.tab). lc_binary.tab - A list of asteroids known or suspected to be binary, along with the reported primary and secondary periods and amplitudes. Primary and secondary periods correspond with the rotation period of the primary and the orbital period of the binary. Note that not all binaries listed are based on lightcurve studies, the list also includes adaptive optics and radar studies. lc_npa.tab - A list of asteroids for which non-principal-axis (NPA) data have been reported, along with the reported primary and secondary periods and amplitudes. lc_references.tab - This file includes the complete citation for each reference cited in the data files. Documentation : The file readme.txt, included in the document directory, contains a description of the data files and how they were compiled. Modification History : The lc data set was first introduced into PDS at the April 1994 asteroid datasets review. It was subsequently updated at the March 1996 review, the April 1999 review, the May 2002 review, the May 2004 review, and the June 2005 review. Updates consist of adding information published or released since the last update. At the May 2002 review of version 5.0, it was decided to separate the reference number listings, which were becoming long, from the main data table. The lccross.tab file was created to provide the cross-listing information between objects and references. The reference list in the main data file was replaced with a single number indicating the total number of references for each object. For the May 2007 review, the compilers of this data set (Harris, Warner, and Pravec) had loaded the data into a database and were able to provide the data files in a slightly updated and more uniform format. The lcscross.tab crosslisting file is no longer needed, since each line in lcdetails.tab is tied to its appropriate reference through the lc_references.tab file. The entries in the other data files, with the exception of lcdetails.tab, also each cite a specific reference in lc_references.tab. The data set was subsequently updated in 2008 with the addition of data published through February 2008. In the 2008 version the spin axis compilation was removed from the data set because it is a subset of the spin axis compilation of Kryszczynska which is included in a separate data set.
DATA_SET_RELEASE_DATE 2008-06-12T00:00:00.000Z
START_TIME 1913-01-01T12:00:00.000Z
STOP_TIME 2008-02-15T12:00:00.000Z
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 entry in the data set is indicated by a quality code. This quality code is described in the associated data label, 'LCSUMMARY.TAB'. Fpr further information the user is referred to the cited original publications.
CITATION_DESCRIPTION Harris, A.W., Warner, B.D., and Pravec, P., Eds., Asteroid Lightcurve Derived Data V10.0. EAR-A-5-DDR-DERIVED-LIGHTCURVE-V10.0. NASA Planetary Data System, 2008.
ABSTRACT_TEXT This is a compilation of published rotational parameters derived from lightcurve data for asteroids, through Feb. 15 2008. In addition to reported rotational parameters by individual paper, there is a summary file with the values adopted by Harris, Warner, and Pravec as the most likely correct values for each asteroid. The data set also contains files listing known rotational information on asteroids with ambiguous periods, binary asteroids, and 'tumbling' asteroids.
PRODUCER_FULL_NAME CAROL NEESE
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