dan at post.com
Thu Jun 25 13:14:14 UTC 2015
Orbitron uses TLE files for prediction like everyone else. There are
options for sources of TLE's in the settings page.
Some of the options do not work, as some of the suppliers of TLEs have
changed the formats and requirements.
under "Bare NASA (2-line) format elements for all satellites of
interest to radio amateurs (updated 25 Jun, 2015)
Right click and save the txt file on your computer.
The on Orbitron's main page on the right click LOAD TLE (near the
time) and select the file.
You can get Orbitron to download some automatically, but many of the
options no longer work. You should also synchronise your PC clock
which is another option in the settings.
More information about the AMSAT-BB