[amsat-bb] SatPC32 "sun tracking"

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

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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