[amsat-bb] Prediction / Tracking Programs.

Daniel Cussen dan at post.com
Wed Aug 31 15:49:41 UTC 2016

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


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 <nss at mwt.net> 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

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