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OPUS - Noisy Data error

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stephen-ward
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I ran a 3 hour Fast-Static GPS session with a Trimble 4000SSe receiver and a Compact L1/L2 w/gp antenna. I converted the dat file to rinex with Dat2Rin and submitted to OPUS static. I received the following error: "OPUS could not process the data file that was submitted. The data was either very noisy or it was collected in kinematic mode".

Any suggestions?


 
Posted : July 30, 2011 10:25 am
Joe M
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Post the dat and rinex file to a web server and post a link to them. Someone will review them for weirdness.


 
Posted : July 30, 2011 10:27 am
loyal
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Stephen

Shoot me the RINEX file (if you want to), and I'll take a look at it. I have seen this error before, and SOMETIMES it can be corrected.

Loyal
LDOGEO at AOL dot COM


 
Posted : July 30, 2011 10:28 am
stephen-ward
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Stephen

Thanks, email sent.


 
Posted : July 30, 2011 10:55 am
loyal
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Stephen

Good news and BAD NEWS...check your Email.

Loyal


 
Posted : July 30, 2011 12:17 pm

itsmagic
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I have seen this error also. Open the RINEX file in a text editor and look at the time date stamp of the observation epochs.. I'll bet that the first few epochs have anomalous date / time stamps. Delete these, save the file and resubmit to OPUS.


 
Posted : July 30, 2011 12:23 pm
stephen-ward
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Stephen

I appreciate your time and effort.

A good sky for me in this area is 8-9 birds, but on average if I can see 6 of those after obstructions I'm doing good. Sky looks good this evening so to the field I go.:-(


 
Posted : July 30, 2011 1:11 pm
Joe M
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Stephen

And the secret NGS doesn't want anyone to know, OPUS will process down to a 10 degree elevation angle...


 
Posted : July 30, 2011 2:38 pm
DavidALee
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If you also take a look at the epochs, the 1's and 5's indicate loss of lock. We use a batch file to delete these as well. Really cleans up a file.


 
Posted : July 31, 2011 7:43 am