[amsat-bb] Re: ao27.org possible schedule error?

George Henry ka3hsw at earthlink.net
Tue Apr 29 20:30:29 PDT 2008

Since my son graduated from RIT last May, he may lose the hosting of the 
program on the rit.edu site at any time.  Just in case, I am now hosting the 
program at http://home.earthlink.net/~ka3hsw/ao27/ as well.


George, KA3HSW

----- Original Message ----- 
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb at wd9ewk.net>
To: <amsat-bb at amsat.org>
Sent: Tuesday, April 29, 2008 12:58 AM
Subject: [amsat-bb] Re: ao27.org possible schedule error?


> Do you have the AO-27 Satellite Scheduler program available from:
> http://www.cs.rit.edu/~cjh9783/programs/satsched.php
> It requires the Java Runtime Environment on your computer, and there are
> versions that will run on any OS with Java or one specifically for Windows
> (still needs Java installed).  This will get you closer to the schedule on 
> the
> satellite, keeping in mind the statement on http://www.ao27.org/ that the
> onboard clock is fast by 0.7 seconds/day from when the last schedule
> was put into effect (currently, from 8 March 2008).
> Comparing the program with the web site, it appears there is a discrepancy
> of around 7 minutes (not accounting for onboard clock issues).  If you can
> get the program to determine the onboard schedule instead of using the
> web site, that would probably be a good thing.  Or use your program to
> determine approximately when AO-27 crosses 29 degrees North, to get an
> approximate idea when the satellite's repeater should be available.
> 73!
> Patrick WD9EWK/VA7EWK

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