[time-nuts] GPS PRN 32

Tom Van Baak tvb at LeapSecond.com
Mon Feb 11 15:07:46 EST 2008


> One more comment on this, SV 32/PRN 32 was briefly in use in 1992-3.
> 
> "SV-32 has been active since Dec 11. [1992]" - 
> http://igscb.jpl.nasa.gov/mail/igsreport/1992/msg00054.html
> 
> "On 28 January (day 028) [1993],  SV-32's PRN number has been changed 
> from PRN#32 to PRN#01 sometimes between UTC 20:55  and  UTC 21:20." - 
> http://igscb.jpl.nasa.gov/mail/igsmail/1993/msg00095.html
> 
> According to the document 
> http://www.thsoa.org/pdf/fugrognsshydrosociety2007.pdf , the use of PRN 
> 32, "Caused problems with DOD applications not supporting > 31 PRNs"

Mike,

Yes, I heard this too. I don't know much about DoD receivers, though.
My guess is they don't show up on eBay for us bottom-feeder types.

BTW, NASA just fixed Jtrack3D for me so you can now select GPS
BIIA-10 (PRN32) from the list of valid satellites.

http://science.nasa.gov/Realtime/jtrack/3d/JTrack3D.html

I also put a cute pair of animated GPS PRN32 orbit tracks at:

http://www.leapsecond.com/pages/prn32/

Don't look at the first one too long; it will make you dizzy.

/tvb





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