[amsat-bb] Re: Sunny Side Up

Jeff Yanko wb3jfs at cox.net
Fri Aug 15 04:08:02 PDT 2008

For telemetry purposes it would make an interesting point to watch live 
telemetry as the satellite passes from light to dark, or vice versa, and 
notice the change of the charge current and voltage and temps of the solar 

It would also be used for trying to visually see the object.  Especially 
helpful when the observer is in darkness but the satellite is illuminated. 
Just last week I saw the ISS pass over while it was fairly dark, not 
complete, yet plenty of sunlight at 200 or so miles above earth.

Jeff  WB3JFS

----- Original Message ----- 
From: "Simon (HB9DRV)" <simon at hb9drv.ch>
To: "AMSAT.org" <amsat-bb at amsat.org>
Sent: Friday, August 15, 2008 3:55 AM
Subject: [amsat-bb] Sunny Side Up

> Some satellite tracking software shows whether a satellite is in sunlight 
> or not.
> I assume that this is to know whether it's being powered by the solar 
> cells when the battery is defunct.
> Is there any other reason to know whether a satellite is in sunlight or 
> the shade?
> Simon Brown, HB9DRV
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

More information about the AMSAT-BB mailing list