14 Feb
2020
14 Feb
'20
4:53 p.m.
Regarding the time difference, note that AMSAT has an arrangement with NASA to get orbital information directly from the Johnson Space Center. AMSAT predictions based on these data have proven to be extremely accurate over the years - even with the narrow beamwidths of 2395 MHz HamTV antennas.
Other sites often get their data from other sources which can become out of date in cases where the ISS adjusts its orbit.
Stick with AMSAT predictions and you will be in good shape.
And yes, this is exactly the right place for these kind of questions.
de KM1P Joe