On 9/2/18, Wendy and Terry Osborne wandtosborne@gmail.com wrote:
Hi Folks,
I have recently been following AO-91 with a selection of tracking programs and confirming the results with observations of the downlink.
Using the same QTH location and Keps, I found the following: The AMSAT-NA online tracking page is pretty accurate. See: https://www.amsat.org/track/index.php Heavens-above.com is also pretty good. See: https://www.heavens-above.com SatPC32, Orbitron, InstantTrack, and Quiktrak are pretty good and give the same results as the “On-Line” trackers.
Nova is about 5 minutes ahead. GPredict is about 5 minutes behind.
Has anyone else noticed this?
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I've never worked AO-91, so I can't comment on that. I run Gpredict on a Linux ThinkPad and i found that it's been accurate for satellites such as FO-29.
73s
Bernhard VA6BMJ