Description of the SDSS MOVING OBJECT CATALOG bundle V1.0 ========================================================= Bundle Generation Date: 2020-02-28 Peer Review: 2010 Asteroid Review, Mon Jun 07 00:00:00 MST 2010 Discipline node: Small Bodies Node Content description based on the data set catalog file description for the PDS3 version, EAR-A-I0035-3-SDSSMOC-V3.0 =================================================================================================================== Note: for PDS3 data sets migrated to PDS4, the following text is taken verbatim from the data set description and confidence level note of the PDS3 data set catalog file. In these cases, some details may not be correct as a description of the PDS4 bundle. Version 3.0 of this data set includes Data Release 4 of the Sloan Digital Sky Survey (SDSS), including astrometric and photometric data for 471,569 moving objects from 519 observing runs through March 2007. The catalog includes various identification parameters, SDSS astrometric measurements (five SDSS magnitudes and their errors), and orbital elements for previously cataloged asteroids. An additional table lists the observing runs from which data are included in this data release, along with the dates of observation and information about the the sky coverage of each run. Files containing the Sloan filter response curves are also included. The 64 binary processing flags for each of the 471,569 detections are provided in the file adr4flags.asc. The flags are identified by name in the file flagslist.asc, and a detailed description of the meaning of each flag is given in the file flags_detail.asc. These flags indicate the status of each detection, warning of possible problems with the image itself, and warning of possible problems in the measurement of various quantities associated with the detection. These three files pertaining to the flags are located in the document directory. Details of the survey and the moving object catalog may be found in the following publications: Gunn, J.E. and 39 coauthors, 1998. The Sloan Digital Sky Survey photometric camera. Astron. J. 116, 3040-3081. [GUNNETAL1998] Stoughton, C. and 191 coauthors, 2002. Sloan Digital Sky Survey: Early release data. Astron. J. 123, 485-548. [STOUGHTONETAL2002] Ivezic, Z., S. Tabachnik, R. Rafikov, R.H. Lupton, T. Quinn, and 26 others, 2001. Solar system objects observed in the Sloan Digital Sky Survey commissioning data. Astron. J. 122, 2749-2784. [IVEZICETAL2001] Juric, M., Z. Ivezic, R.H. Lupton, T. Quinn, S. Tabachnik, X. Fan, J.E. Gunn, G.S. Hennessy, G.R. Knapp, J.A. Munn, J.R. Pier, C.M. Rockosi, D.P. Schneider, J. Brinkmann, I. Csabai and M. Fukugita 2002. Comparison of positions and magnitudes of asteroids observed in the Sloan Digital Sky Survey with those predicted for known asteroids. Astron. J. 124, 1776-1787. [JURICETAL2002] Fukugita, M., T. Ichigawa, J.E. Gunn, M. Doi, K. Shimasaku, and D.P. Schneider 1996. The Sloan Digital Sky Survey photometric system. Astron. J. 111, 1748-1756. [FUKUGITAETAL1996] Pier, J.R., J.A. Munn, R.B. Hindsley, G.S. Hennessey, S.M. Kent, R.H. Lupton, and Z. Ivezic 2003. Astrometric calibration of the Sloan Digital Sky Survey. Astron. J. 125, 1559-1579. [PIERETAL2003] Known issues or problems with the data ====================================== Note that due to problems in the 2nd data release of the SDSS MOC, it was never archived in PDS. Version 3.0 (this version) comprises the fourth data release. Each release is cumulative and supersedes earlier releases. The sample completeness and contamination in the fourth release (this version) are expected to be unchanged since the third release, and are estimated to be ~95% and ~6%, respectively (estimated with an accuracy of 1-2%). These values are somewhat different than ~90% and ~3%, respectively, that were reported by Ivezic et al. (2001): the sample completeness slightly increased, with a corresponding increase of sample contamination. Note that due to saturation limits of 12-14 mag (depending on the filter), the brightest asteroids are not included in the catalog. Warning: Unlike the first three releases, this fourth release includes SDSS-II data obtained in non-photometric conditions. For this reason, photometric accuracy may be substandard for some equatorial, so-called supernovae, runs (defined by Declination < 1.26 deg. and negative galactic latitude). Also, some of SDSS-II runs cross the Galactic plane. Due to high source density and the resulting confusion, both photometry and astrometry may be substandard for regions within about 15 deg. from the Galactic plane. These problems are especially important when looking for objects with peculiar colors. PDS3 Source =========== Version 1.0 of this bundle was migrated from version 3.0 of the PDS3 data set EAR-A-I0035-3-SDSSMOC-V3.0.