[amsat-bb] SatPC32 "sun tracking"

Erich Eichmann erich.eichmann at t-online.de
Wed Jan 25 17:15:27 UTC 2017


Bob,
for your purpose you could use SumListen.exe (also in the SatPC32 
program folder). It outputs lists with azimuth and elevation of Sun and 
Moon to the screen and/or printer for selectable increments and periods.

73s, Erich, DK1TB

Am 25.01.2017 um 15:00 schrieb Robert Bruninga:
> Thanks ALL!  Found it (SuM.exe).  But it won't let me easily slide around
> in time.
>
> So I just went back to my 20 year old copy of Instantrack, verified that
> it gives same result as SuM and now I'm good.
>
> I used IT to see how many hours of sun a south facing solar array would be
> illuminated at what elevation angle.
>
> For my latitude (39 degrees), I developed this table in about a minutes
> work:
> 7 Hrs over +/-49 deg AZ above 10 deg EL
> 6 hrs over +/- 43 deg AZ above 14 deg EL
> 5 Hrs over +/- 37 deg AZ above 18 deg EL
> 4 Hrs over +/- 31 deg AZ above 21 deg EL
> 3 Hrs over +/- 24 deg AZ above 24 deg EL
>
> To figure out where to top off some trees.
>
> Bob, WB4APR
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