[amsat-bb] Re: AO-27 Schedule driver?

[David M0ZLB]

Just followed the 15.55 - 16.09 AO-27 pass. Am I correct in saying that 
it is in V/U mode for half the pass and then reverts to TLM?
I remember years ago working it regularly from EL96 and it used to send 
TLM for the first 20 seconds and then it was open to V/U.

Just wondering thats all, nice to have it back in any condition as there 
are precious few easy sats left!








Andrew Glasbrenner wrote:
> The _last_ time AO-27 was running under TOPR schedule, the satellite turned 
> on on ascending passes at roughly 30 degrees N lattitude for 360 seconds. 
> Should be similar this time.
>
> 73, Drew KO4MA
>
> ----- Original Message ----- 
> From: "Robert Bruninga" <bruninga at usna.edu>
> To: "'Howard Stephenson - K6IA'" <hlstephenson at gmail.com>; 
> <amsat-bb at amsat.org>
> Sent: Thursday, January 18, 2007 9:07 AM
> Subject: [amsat-bb] AO-27 Schedule driver?
>
>
>   
>> Regarding AO-27:
>>
>> Fantastic news about AO-27.  Gives us something to use at
>> schools to demo AMSATS...
>>
>> I think I have read most of the pages, but I cannot find the one
>> thing I am looking for, and that is the top-level "rules" that
>> are driving the new scheduling.  I am not talking about code or
>> epoc or anything like that, but simply, the human logical
>> "rules" that tell the schedule, what to schedule...
>>
>> In the past, the TEPR algorithm was very simple and could be
>> explained as "time since entering the sun".  This was easy to
>> interpret and anyone could easily visualize or "see" what this
>> meant realitive to his time of day, and location.  Nothing
>> needed to be consulted...  Just look at the track of the
>> satellite on the map and your relation to the terminator, and
>> you know if it is useable..
>>
>> The TOPR schedule seems to be wholy "time" driven from EPOC, but
>> I have not been able to find what the top-level "rules" are that
>> drive that algorithm so that I can learn to visualize it. The
>> new on-line "schedules" are teriffic, and a good example of
>> computer dissimination of live info, but it requires detailed
>> consultation of printed schedules daily and having to match
>> times with orbits, I'd rather just understand what the scheduler
>> "intended".
>>
>> Is this new schedule system still driven by the simple rule of
>> "turning it on for X minutes after entering the sun"? Or is it a
>> smarter rule that says "turn on over USA, Europe, Australia and
>> Japan?" or, "turn on over those countries only while in the
>> sun", or, turn on for 10 minutes out of every hour, or what?
>>
>> So, can someone point me to this top-level "rule" that is used
>> to drive the schedule?  For routine operations, it is easier to
>> learn the rule, than to have to look at a schedule every day...
>>
>> Thanks
>> Bob, Wb4APR
>>
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>
>
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