[amsat-bb] Software Problems

Joe nss at mwt.net
Sun Oct 23 14:55:37 UTC 2016

I am really excited about getting back on the Birds after a 40+ year 
I've done EME, MS, AU, and all sorts of weak signal stuff on 144Mhz.
I've played the DX and contesting on HF.
All has been fun, but none except for the EME has given the most 
happiness than the memories of playing with the birds in the late 70's

Now let me know, I can take this off list if members here want me to, 
But This excitement is quickly turning into disgust. To the point I'm 
just about to say screw it and forget about Sat work again.

I am in the need of help with prediction programs.

Man in the late 70's it was the ARRL bulletin with keps etc. and a Oscar 

Now we got ultra cool software programs that all are incredible! Except 
for me, I can not trust ANY of them.  I have been testing several to see 
what I will make my primary program. BUT...... and there always is a 
"BUT" isn't there? I can not say what one to "Trust"
The four I have installed are...

Now of course they all use the same computer clock. And it is accurate 
to less than a tenth of a second.

Each one periodically ask to Up-Date the TLE's and I say "YES" and let 
them do it all on their own. I change NOTHING on where they get their data.

The run them.

SatLookDown1_28 & HRDSatTrack, both agree very closely. Almost to the 

But the Orbitron, is off, WAY off. like 15 minutes off.

And the SatPC32 is even worse the sat is like 1/2 an orbit off!

Now the ones that agree also match the page


So my guess they are the ones showing correct data.

Now what to do about the other two. How can I make them show correct passes?

Remember I can take this off list if no one wants to read about this...
Just let me know,

The Original Rolling Ball Clock
Idle Tyme

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