Re: [amsat-bb] Calculating Astronomical Sunset

["Drew Glasbrenner" <glasbrenner@xxxxxxxxxxxxxx>]

A quick way is to use a tracking program that can display the footprint of
the satellite and the illuminated earth. If "daytime" on the ground and the
footprint intersect, then the sat is illuminated.

Drew, KO4MA

----- Original Message -----
From: "DOUGLAS KUITULA" <ka8qcu@juno.com>
To: <amsat-bb@AMSAT.Org>
Sent: Tuesday, November 27, 2001 6:38 PM
Subject: [amsat-bb] Calculating Astronomical Sunset


> Hi all,
>  While trying to get a look at Starshine, I was trying to determine how
> long the bird would be in sunlight while my QTH was in the dark. In the
> past I've usually figured on a couple of hours for most LEO satellites.
> But it got me wondering if there is a formula to determine, more
> accurately, how long a satellite will be in sunlight after sunset on the
> ground.
>  Of course the altitude of the bird would be a factor, as well as the
> circumference of the earth. But it's been 30 years since I got out of
> college and I've forgotten most of my physics and geometry. Any ideas?
>  Thanks in advance. 73 de Doug KA8QCU
>
> ka8qcu@juno.com
>
> ________________________________________________________________
> GET INTERNET ACCESS FROM JUNO!
> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today!  For your FREE software, visit:
> http://dl.www.juno.com/get/web/.
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org