++ed by:
Author image Tom Wyant
and 1 contributors


visual - Compare Celestrak visual to McCants vsnames


 visual -help
 visual -version



If asserted, this Boolean option causes debug information to be written to standard error. Asserting this option is unsupported, at least in the sense that the author reserves the right to change the output without notice.


If this Boolean option is asserted, Astro::SpaceTrack and JSON are loaded, and the Space Track web site is queried for the Satcat status of the objects. Any that have defined decay dates are eliminated.


This option displays the documentation for this script. The script then exits.


If asserted, this option causes Mike McCants' quicksat.mag file to be fetched also, and a magnitude hash to be produced that defines magnitudes for any body that appears on either the Celestrak visual list or the McCants vsnames list, and has a magnitude in either the McCants vsnames list or the McCants quicksat list. The output is Data::Dumper format.


This option displays the version of this script. The script then exits.


This Perl script downloads the list of visual bodies from the Celestrak web site and the vsnames.mag file from Mike McCants' web site and compares the two, reporting OIDs that are not on both sites and what site they are on.

Note, though, that you get different output if you assert -merge.

In either case, though, the last thing you get is a Last-Modified: date, which is the most-recent of any of the data sources examined.


Thomas R. Wyant, III wyant at cpan dot org


Copyright (C) 2014-2021 by Thomas R. Wyant, III

This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the Artistic License 1.0 at https://www.perlfoundation.org/artistic-license-10.html, and/or the Gnu GPL at http://www.gnu.org/licenses/old-licenses/gpl-1.0.txt.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.