[IGSSTATION-3492]: OPMT: problems with GPS receiver

[Pierre Uhrich]

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IGS Station Mail          06 Jan 07:57:18 PST 2010      Message Number 3492
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Author: Pierre Uhrich (LNE-SYRTE, Observatoire de Paris)

Dear Colleagues,

 From January 1st to 3rd, 2010, we seem to have experienced some 
problems with our Ashtech Z12-T receiver called OPMT, which is also part 
of our IGS station OPMT. For some reason(s) not clearly understood yet, 
as our other Ashtech Z12-T OPM2 was not affected simultaneously, the 
generation of Rinex files was not completed properly, or may have been 
completed but with partly corrupted files as a result. It is not only 
due to a problem in the file names, issued from the change from 2009 to 
2010, which seems to have affected also some other Ashtech receivers in 
the IGS network, but also to a wrong GPS week number for half of one 
given day.

Therefore, we had to spend some time trying to fix these problems. The 
Rinex files for the first three days of year 2010, which could only be 
partly rebuilt, have been resubmitted today to IGN.

Please feel free to contact us in the case more detailed information 
would be needed.
Best regards.
Pierre Uhrich.

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Dr Pierre Uhrich			Pierre.Uhrich at obspm.fr
Inginieur-chercheur LNE
Equipe Mitrologie du temps
LNE-SYRTE,			Phone:	+ 33 (0)1 40 51 22 17
UMR CNRS 8630,			Fax:	+ 33 (0)1 43 25 55 42
Observatoire de Paris,
61 avenue de l'Observatoire, F-75014 Paris, France.
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