I am now the proud owner of a pair of Trimble 4000 SSi receivers, and have run a couple of sessions in the field, and wish to submit to OPUS for a processed solution.
I'm having problems submitting to OPUS, and I don't understand why.
I've extracted the DAT file from the TSC1 data collector, and have attempted to submit it to OPUS. The upload begins, and then appears to stall at around 65% to 75% and at a certain point the web browser indicates "Waiting for www.ngs.noaa.gov...." but nothing happens, and I end up getting a timeout error.
For the next few hours, anyway, here's the DAT file. I am open to any suggestions. Thank you!
OPUS used to accept DAT files, but no more. You need to convert them to RINEX and then submit.
Also, make sure you have read all the instructions carefully - especially about data interval collected.
I converted your .dat file to rinex then submitted to OPUS but I got the same results you did. I also tried submitting one of my own files with the same result.
I guess try again tomorrow.
Did you just make this up about the .dat files? I believe your statement is completely untrue.
I also have my doubts about DAT files being unusable. I think the OPUS site indicates that the DAT file is acceptable for input. By the way, I used Trimble's "convert to RINEX" utility and tried submitting the resulting .11o file (observations file). But, got the same results trying it this way.
Thanks John. I'm glad to hear you got the same results I did. At least, it hints that it may not be me, but rather something with OPUS causing the problem. I'll give it a try tomorrow.
Well... I converted the .dat file to RINEX (Convert to RINEX).
For starters, the file is just over an hour long (too short for OPUS_Static), AND the first few dozen observations are full of holes AND only involve 3 satellites.
Aside from the "start-up problems," the file does contain quite a few "holes" (missing observables). This may or may not be a problem for OPUS_RS.
After cleaning up the file, I submitted it to OPUS_RS (Rapid Static), but have NOT received a solution (or error) yet.
Loyal
Hmmm. That's strange because the session was over 4 hours in length. At least, so I thought. I'll take some time to read through the RINEX file in notepad to see what I can tell/learn. Thank you for your effort
I sliced off both ends of the RINEX file and submitted the data from 2000 hrs through the epoch before 2200 hrs to OPUS-RS.
It produced a solution, but it only used 75% of the observations.
That may be normal for the 4000-series receivers, I dunno. What I have seen is they often report signal-to-noise ratios in the single digits, much lower than the 4700s and later models.
Good luck.
GB
Old, obsolete guy's solution: the horizontal distance is the cosine of the vertical angle times the slope distance. Get out the peg books and pocket trig tables and figure it. If two guys get the same answer, call it good.
Hope that helps,
Don
Here the poop from the RINEX header:
2011 10 1 19 8 15.0000000 GPS TIME OF FIRST OBS
2011 10 1 20 24 0.0000000 GPS TIME OF LAST OBS
At least that what I got with "Convert to RINEX."
Loyal
> The upload begins, and then appears to stall at around 65% to 75% and at a certain point the web browser indicates "Waiting for www.ngs.noaa.gov...." but nothing happens, and I end up getting a timeout error.
If it's any consolation, I've had a similar experience today when I've tried to upload a DAT file with about 6 hrs. of 15-second observations (also originally logged with a 4000ssi receiver). It will consistently appear to upload 55% of the file and stall dead. I think it's a problem at the NGS end, not ours. OPUS has accepted DAT files for as long as it's been on line and a RINEX file of the same data doesn't fare any better today.
The DAT file is right at 500 kB.
The RINEX header should look like -
2011 10 1 19 8 15.0000000 GPS TIME OF FIRST OBS
2011 10 1 23 58 30.0000000 GPS TIME OF LAST OBS
Maybe try downloading the DAT again? The first time I tried only about 63 kB came through.
GB
I tried several times to submit an OPUS solution Saturday (and Friday too)...no luck for me either. I was able to get an OPUS-RS solution right away...perhaps you can try Rapid Static instead.
Here's a different way you can get the DAT file, and will supercede the old link later tonight, when I turn off my computer.
Been having some submissions to OPUS choke over the past few weeks. Conveerted all to Rinex, so I just kee presubmitting.
Has anyone seen this? My TPS files are enormous compared to any other type of file I use. There is a niuce convert to Rinex, but still huge. I need to try to figure out what all of the extra data might be.
Decimating via TEQC seems to bring things back to normal for files of similar duration and epoch.
Glenn,
Looking at Table A2 of the RINEX 2.10 file format, I see that the Signal Strength is part of each observation record.
In the observation set below, taken from this file, can you identify which of the values represent the signal strength, and help me understand what is a "good" value compared with one that is not?
11 10 1 22 6 0.0000000 0 6G02G04G05G10G17G25
20817337.336 1 -17313102.434 1 -13339630.86847 20817338.66147
21055962.657 1 -3316927.457 1 -2526745.90347 21055965.47047
22294615.762 1 -6948163.234 1 -5232509.30646 22294619.33746
20242688.489 1 -21108506.031 1 -15781614.47447 20242692.40447
23204600.139 1 12997949.428 1 10139954.48645 23204603.84345
23426071.542 1 -1697184.722 1 -1268813.12545 23426079.68845
Al
You're right Glen
For whatever reason, I'm not getting the WHOLE .dat file (this has happened before). I have tried a couple more times, and still nothing bigger than about 150k.
I will keep trying to get the complete file downloaded.
Loyal
Big Al
THAT WORKED!
To your knowledge, has anyone been straddling the tripod?
Don