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RE: AO-40 MB frequency



Hello Mineo

> AO-40 (2401.323MHz) on 3 June 2002
> UTC        IF         Observed    Shifted     Predicted   Differed
> 03:09:00   145.3635   2401.3635   2401.3645   2401.3577   +6.8
> 03:10:00   145.3637   2401.3637   2401.3647   2401.3579   +6.8
> 03:11:00   145.3639   2401.3639   2401.3649   2401.3581   +6.8
> 03:12:00   145.3641   2401.3641   2401.3651   2401.3582   +6.9
> 03:13:00   145.3643   2401.3643   2401.3653   2401.3584   +6.9

I have exactly the same here. I am in the process of compiling Doppler
prediction observed data, and I was starting to wonder if my Rubidium
frequency standard was wrong!

7kHz high is normal in my observations, reducing to 5kHz near perigee.

I use Wisp, InstantTrack and Nova for prediction, all of which agree to
within about 10 or 20Hz.

Keps are the latest from AMSAT.

PC time is within 0.2s.

Early days yet.

73 Howard G6LVB


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