Data Set Information
DATA_SET_NAME SDSS-BASED ASTEROID TAXONOMY V1.0
DATA_SET_ID EAR-A-I0035-5-SDSSTAX-V1.0
NSSDC_DATA_SET_ID NULL
DATA_SET_TERSE_DESCRIPTION Asteroid taxonomic classifications based on the Sloan Digital Sky Survey Moving Object Catalog, as reported in Carvano et al. (2010).
DATA_SET_DESCRIPTION
Data Set Overview
  =================
    The Sloan Digital Sky Survey Moving Object Catalog (SDSS-MOC) is a large
    data set that provides magnitudes at the five SDSS filters and astrometric
    information for all identified moving objects present in the SDSS images.
    Its 4th release contains 471,569 moving objects observations prior to
    March 2007, were 220,101 are linked to 104,449 unique objects (Izevic et
    al. 2010). The present data set is the result of the Carvano et al. (2010)
    objective to develop an asteroid taxonomy based on the five SDSS
    magnitudes that range from 354 to 913 angstroms.
 
    The asteroids' observations are classified into the following nine
    classes: Vp, Op, Qp, Sp, Ap, Lp, Dp, Xp, and Cp, all related to the
    classes and complexes in Bus taxonomy (Bus & Binzel, 2002b). Futhermore
    the probabilities for each observation to belong each class are also
    computed. After this, the taxonomic classifications for each observation
    are collapsed into a single classification for each asteroid. Asteroids
    and observations were allowed to be assigned to more than one class.
    Further information about the method, the defining limits for each class
    and the classification algorithm are found in Carvano et al. (2010).
 
    The data set is composed of three tables:
 
    The SDSS Taxonomy Observation Table (107,467 records) containing the
    classification types for the multiple SDSS observations of each asteroid.
    This file also contains the classification probability score and
    normalized reflectances.
 
    The SDSS Taxonomy Asteroid Table (63468 records) containing the SDSS
    observed asteroids with their respective classification types. This file
    also contains the probability scores, typical observations, binary flags
    and supporting astrometric information.
 
    The SDSS Taxonomy Templates (9 records) is the table containing templates
    representing each classification type. Each template has its modal
    normalized reflectance value and its color ranges used to classify the
    observations.
 
    == References ==
 
    Ivezic, Z., Juric, M., Lupton, R.H., Tabachnik, S., Quinn, T., and the
    SDSS Collaboration, SDSS Moving Object Catalog V3.0.
    EAR-A-I0035-3-SDSSMOC-V3.0. NASA Planetary Data System, 2010.
 
    Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothe-Diniz, T. SDSS-based
    taxonomic classification and orbital distribution of main belt asteroids,
    Astronomy and Astrophysics, Volume 510, id.A43, DOI:
    10.1051/0004-6361/200913322, 2010.
 
    Bus, S.J. and R.P. Binzel, Phase II of the small main-belt asteroid
    spectroscopic survey: A feature-based taxonomy, Icarus 158, 146- 177,
    2002.
DATA_SET_RELEASE_DATE 2011-05-31T00:00:00.000Z
START_TIME 1998-09-19T12:00:00.000Z
STOP_TIME 2007-03-14T12:00:00.000Z
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 OBS413T2
INSTRUMENT_NAME SDSS PHOTOMETRIC CAMERA
INSTRUMENT_ID I0035
INSTRUMENT_TYPE IMAGER
NODE_NAME Small Bodies
ARCHIVE_STATUS SUPERSEDED
CONFIDENCE_LEVEL_NOTE
Confidence Level Overview
  =========================
    All the photometric and astrometric data are provided by the SDSS MOVING
    OBJECT CATALOG 4th release (Izevic et al. 2010), thus information about
    the confidence level is provided in that data set.
 
    It should be noted that there was a sampling before the taxonomic
    algorithm application, which is represented by the binary flag at the
    colunm BAD. This quality flag is raised when one or more magnitudes had
    uncertainties above the 3rd quartile of the error distributions. The
    utilization of classifications for these observations and asteroids should
    be handled with care.  For further information about this quality flag,
    see Carvano et al. (2010).
CITATION_DESCRIPTION Hasselmann, P. H., Carvano, J. M., and Lazzaro, D., SDSS-based Asteroid Taxonomy V1.0. EAR-A-I0035-5-SDSSTAX-V1.0. NASA Planetary Data System, 2011.
ABSTRACT_TEXT This data set contains Sloan Digital Sky Survey (SDSS) asteroid photometric observations classified according to the SDSS-based Asteroid Taxonomy, as developed by Carvano et al. (2010).
PRODUCER_FULL_NAME PEDRO HENRIQUE HASSELMANN
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