I found with Orbitron, the inbuilt TLE downloader did not work for me.
The best source of TLE for Amateur Radio is amsat as it includes unusual and non listed anywhere else satellites. You can copy and paste the file here into notepad and then load it using the load button in Orbitron. Celes Trak and spacetrak do not have all amateur satellites.
http://www.amsat.org/amsat/ftp/keps/current/nasa.all
Also make sure your clock synchronisation is working by changing the computer clock and then correcting it. Compare passes to sites like heavens above.
On 31/08/2016, Joe [email protected] wrote:
I have three prediction / tracking programs here.
Simple Sat by W9KE HRD Sat Track and Orbitron.
The simplesat and the HRD are perfect, and agree to the second even with each other.
Orbitron on the other hand, is WAY off. Like 1/2 an orbit off.
it says the tle's up date fine and clocks all say correct time. but the sat no matter what one I try is like 1/2 an orbit wrong.
Also it does not have NO-84 listed. How do I get it to see that one too.
Joe WB9SBD