0.001 T. R. Wyant
  Initial release
0.002 T. R. Wyant
  bin/satpass -
    Behave better when no Clipboard module.
    Do not use Clipboard module under darwin.
    Require Astro::SpaceTrack 0.016 (if any).
    Default star distance now 10000 parsecs (was 1 parsec).
    Add 'sky lookup', using Astro::SIMBAD::Query.
    Modified 'sky' listing format to look like 'sky add' commands.
  Astro::Coord::ECI -
    Add NAD83 ellipsoid.
  Astro::Coord::ECI::Utils -
    Corrected documentation.
0.003 T. R. Wyant
  bin/satpass -
    Remove all uses of Clipboard, to try to get built under
      ActiveState's ActivePerl.
    Correct version number in Astro::SpaceTrack load.
    Accumulate Iridium operational statuses.
    Add status command to display satellite operational status.
  Astro::Coord::ECI
    Increment version, as a lazy way to increment the distribution
      version.
    Tweak documentation.
  Astro::Coord::ECI::Utils
    Make subclass of Exporter, since ActiveState's build
      seems to have a problem with 'use Exporter qw{import}'
      (except under darwin, strangely enough).
    Increment version.
0.004
  bin/satpass -
    Rewrite command parsing so that we can retain quotes and
      be POSIXly correct in option processing for the system
      command.
    Give tle command a -verbose qualifier, to produce a formatted
      listing of the orbital parameters.
    Provide HTML =item targets consistent with links.
  ECI.pm
    Clean up docs.
  TLE.pm
    Clean up docs, wrap some really long lines.
    Replace _fmod2p with mod2pi from Utils module.
0.005
  ECI.pm
    Add 'inertial' read-only attribute.
    Add equatorial coordinates relative to observer.
    Fix negative right ascension - should be mod 2 pi.
    Tweak docs, including fuller synopsis.
  bin/satpass
    Add local_coord parameter to determine local coordinate system
      (azel or equatorial).
    Modify pass and position output to use local_coord.
  TLE.pm
    Tweak synopsis, to show that setting time runs model.
0.006
  ECI.pm
    Cache some calculations for re-use.
  ECI/Star.pm
    Tweak docs.
  ECI/Utils.pm
    Add intensity_to_magnitude(), atmospheric_extinction().
  bin/satpass
    Correct check for whether location has been set. Old check
      did not recognize 0 latitude, longitude, or height.
    Special-case code to 'unset' tz when it is set to undef or ''.
    Make 'position' iterate over time, in real time with -realtime.
    Add -time global command option to time execution.
    Add 'country' parameter. Break out 'geocode' and 'height' to
      country-specific versions, and make the original command
      dispatch based on 'country' parameter or explicit argument.
    Allow formatting of local coordinates without range information.
    Round pass times to the nearest second (since strftime truncates).
    Add 'almanac' command options -horizon, -quarters, -transit, and
      -twilight to restrict the output.
    Make height_us() work with revised USGS SOAP calling sequence.