Data Set Overview
  =================
  The eight color asteroid survey provides reflectance spectra for
  minor planets using eight filter passbands.  This dataset includes
  the primary data obtained for 589 minor planets, the mean values
  for each minor planet included in the survey, the principal
  component scores derived from the primary data, the response
  curves, effective wavelengths, and bandpasses for the filters, and
  the coordinates and values determined for standard stars defining
  the system.
 
 
  Data
  ====
  The data are included in six ASCII data tables.
       'ecas.tab'     - Primary data.
       'ecasmean.tab' - Mean values derived from primary data.
       'ecaspc.tab'   - Principal component scores for each asteroid,
                        derived from the primary data.
       'ecasstds.tab' - Standard stars defining the ECAS photometric
                        system.
       'ecasfltr.tab' - Transmission curves for the eight filters
                        used, and transmission and reflectance curves
                        of the dichroic beam-splitter.
       'ecasband.tab' - Effective wavelengths and bandpasses of the
                        filters.
 
 
  Media/Format
  ============
  This dataset is released in the form of ASCII files which may be
  stored on disk or other magnetic medium and which may be
  distributed by ftp, email, real-time access by remote login, or by
  whatever means is most convenient.

Confidence Level Overview
  =========================
  The RMS errors of the individual observations are included in the
  dataset.  The reliability of the data may be estimated by comparing
  multiple observations of each object.
 
 
  Review
  ======
  This dataset underwent a formal external review on March 31, 1995.