[time-nuts] I thought GPS repeated every 12 hours (-2 minutes)
Brooke Clarke
brooke at pacific.net
Tue May 24 02:46:22 UTC 2016
Hi Skip:
The GPS orbit is 12 sidereal hours. It sure would be nice if LH supported that time frame.
The ground track repeats for each satellite, so LH could also have a separate elevation mask for each of them.
--
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
The lesser of evils is still evil.
-------- Original Message --------
> Hello Nuts,
>
> I am attaching a capture from Lady Heather of a 3-day run. You can see the
> temperature vary by 7C over each day. The TB is being run open loop and
> another GPSDO 10MHz input to the unit instead of the unit's oscillator.
>
> I expected the purple line to repeat every 12 hours based on the GPS
> constellation being the same (which maybe it kind of does), but there is
> definitely a 24 hour repeat. What is really weird is that the number of
> satellites that LH sees also repeats on a 24 hour cycle, not 12 (bottom
> trace).
>
> Any help in understanding this behavior? Thanks in advance.
>
> Skip Withrow
>
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