Long story short:
I have handwritten notes and a recording from a past AO-73 pass.
My notes are dated that the pass was from 05:18Z - 05:31Z on 2015-01-29.
My recording indicates that the start was at 05:19Z on 2015-01-29. (I have the clock on the MP3 device set to UTC).
I have a spreadsheet of every pass I've tracked since the beginning of the year, and I'm going back to update the AOS, Max, and LOS azimuths, since I didn't start recording those until February.
Here's what I did:
Fed the AMSAT TLE file from 2015-01-30 into Orbitron.
It predicts AO-73 AOS at 05:32Z, and LOS at 05:39Z
Got the old-school predict program, fed it the same file, and got exactly the same results.
How can I best simulate an orbit prediction from the past?
I have SatPC32 but I don't understand how to use it to get a pass prediction.
Thanks in advance for the help!