Discussion:
[amsat-bb] SatPC32 "sun tracking"
Alan
2017-01-25 13:06:49 UTC
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Bob,

There is an auxiliary program in the SatPC32 folder called SuM.exe which track both the sun and moon.

73s,

Alan
WA4SCA


<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-***@amsat.org] On Behalf Of Robert Bruninga
<Sent: Wednesday, January 25, 2017 7:01 AM
<To: AMSAT <amsat-***@amsat.org>
<Subject: [amsat-bb] satpc32 "sun tracking"
<
<Does SatPC32 have a ?sun tracking? feature for indicating the Sun AZ/EL
<like Instantrack did?
<
<
<
<I use it frequently for sun noise measurements and for solar angle
<calculations for solar system design.
<
<Bob, WB4A{R
<_______________________________________________
<Sent via AMSAT-***@amsat.org. AMSAT-NA makes this open forum available
<to all interested persons worldwide without requiring membership. Opinions expressed
<are solely those of the author, and do not reflect the official views of AMSAT-NA.
<Not an AMSAT-NA member? Join now to support the amateur satellite program!
<Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb


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Robert Bruninga
2017-01-25 14:00:38 UTC
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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
_______________________________________________
Sent via AMSAT-***@amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Erich Eichmann
2017-01-25 17:15:27 UTC
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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
Post by 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
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
_______________________________________________
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-***@amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
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