Data Set Overview
  =================
 
  This data set contains photometric lightcurves of near-earth
  asteroids obtained by Petr Pravec and his collaborators at Ondrejov
  Observatory.  Lightcurves for 42 asteroids are included.  These
  asteroids were included based on a slightly wider criterion
  for a NEA:  q < 1.33 AU (rather than the standard definition of
  q < 1.3 AU).  As a result, some asteroids may be included which
  other researchers would classify as Mars-crossers.
 
  Parameters
  ==========
 
  The lightcurve files contain columns for light-corrected UTC
  Modified Julian Date, and magnitude.  The type of magnitude is
  specified in the parameter table.  Lightcurve files are divided into
  subdirectories by asteroid number, with a separate subdirectory for
  asteroids unnumbered at the time of the most recent update.  The
  data file names start with the asteroid number (or provisional
  designation for unnumbered asteroids) followed by the date of
  observation.
 
  The parameter table has one line per lightcurve and gives the
  subdirectory and filename, the asteroid number and/or provisional
  designation, the starting and ending time of the lightcurve, the
  color band and magnitude type, the phase to which the magnitudes
  have been corrected, and the minimum and maximum errors of the
  points of the lightcurve.

Confidence Level Overview
  =========================
    Review
    ======
    This data set underwent external peer review on June 1-2, 2000.