[amsat-bb] Re: What command to use to get next 24hrs AOS/LOS for a particular satellite using predict server

Greg D. ko6th_greg at hotmail.com
Mon Oct 20 22:31:00 PDT 2008

Hi Pieter,

I've only seen the documentation that came with the software, and used that to build a program to run my rig for Doppler shift.  A pass prediction table shouldn't be too hard; perhaps a little tedious.  Let us know what you come up with!  :-)

If you're looking for some software that makes pass prediction tables, and don't mind some creaky old MS-DOS software, the pass prediction utility that came with PCTrack might fit the bill.  The code is "shareware", if you remember back that far, and I've got an old copy on my ham site, along with a patch program I wrote to work around the Y2K bug.  I haven't tried it, but I'm guessing it should all run under dosbox under Linux, or the command prompt on Windows.  See:  http://home.wavecable.com/~ko6th

Look about halfway down the page to the 31-March entry.  pctscan.exe is the part you need; it's in the archive.  Don't forget to run my patch.exe program, after updating the Keps using the convert.exe program.  At least, I think that's how it works...  It's been a while.

Good luck,

Greg  KO6TH

> Date: Mon, 20 Oct 2008 13:08:42 +0200
> From: PKotze at csir.co.za
> To: amsat-bb at amsat.org
> Subject: [amsat-bb] What command to use to get next 24hrs AOS/LOS for a	particular	satellite using predict server
> Hello all
> Anyone more experienced with querying the predict server?  The only documentation I have for querying it is the demo.c file which comes with predict.
> What I want to do, after I have built the list of satellites using the GET_LIST function is to build a list of AOS and LOS times for each satellite in say the next 24hrs.
> Is there a PREDICT command to do this?  Closest I have seen is the PREDICT "SAT NAME" time command, but this gives me a prediction of the satellite position at a certain time.
> Regards
> Pieter
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