[teqc] GeoGenius

Sam Storm van Leeuwen samsvl at nlr.nl
Thu Sep 2 08:24:49 MDT 2004


Hi Lou,

It certainly looks like GeoTracer (receiver) output. But not fully identical to
the GeoTracer 2000 (L1 only) which I implemented. I think the Z-XII is a
dual frequency receiver, this might account for the differences.

You can contact Herbert at Herbert_Landau at trimble.com

good luck

Sam

At 07:44 AM 9/2/2004 -0600, you wrote:
>hi Sam,
>
>Are the Terrasat .OBS files at http://www.gps-survey.com
>in GeoTracer format?
>
>--lou
>
>>Lou,
>>Recently, Herbert gave me a GeoTracer output format description.
>>This might help.
>>Sam
>>At 03:51 PM 9/1/2004 +0000, you wrote:
>>
>>>Hi Lou,
>>>GeoGenius is a software developed by Dr. Herbert Landau, his company 
>>>Terrasat ist located in Germany:
>>>
>>>Trimble Terrasat GmbH
>>>+49 8102 74330
>>>Haringstr. 19
>>>85635 Höhenkirchen-Siegertsbrunn (nearby Munich)
>>>
>>>
>>>"Lou Estey" <lou at unavco.org> schrieb:
>>> >hi Andrew,
>>> >
>>> >> I was under the impression that you knew everything!
>>> >
>>> >Ha!  Hardly!
>>> >
>>> >> Seems to be what is logged by Spectra Precision Terrasat software--not
>>> >> receiver specific.  Terrasat is a division of Spectra Precision and
>>> >> developed VRS.  Trimble bought Spectra Precision.  The software lives
>>> >> on...
>>> >>
>>> >> If you're really curious, try:
>>> >>
>>> >> http://www.gps-survey.com  --> File Download --> Observations --> etc
>>> >>
>>> >> This site used to have raw Ashtech, but now it's Ashtech in Terrasat
>>> >> clothing.  Not a huge deal, as there is rinex, but the rinex is pretty
>>> >> chopped up.
>>> >
>>> >The first hour (I guess) for 31 Aug:
>>> >
>>> >-rw-r--r--   1 lou      dmg         3780 Sep  1 07:01 WCM1244A.04a
>>> >-rw-r--r--   1 lou      dmg        24214 Sep  1 07:02 WCM1244A.04n
>>> >-rw-r--r--   1 lou      dmg       409900 Sep  1 07:03 WCM1244A.OBS
>>> >[1020] file W*
>>> >WCM1244A.04a:   ascii text
>>> >WCM1244A.04n:   ascii text
>>> >WCM1244A.OBS:   data
>>> >
>>> >WCM1244A.04n is obviously a pretty normal RINEX nav file. WCM1244A.04a
>>> >appears to be some sort of stat matrix for the GPS SVs (PRN 1-31), and
>>> >WCM1244A.OBS must be the observations.  The first few lines of an octal
>>> >dump are interesting since there is some ASCII:
>>> >
>>> >[1025] od -c W*.OBS | more
>>> >0000000   t   e   r   r   a   S   a   t 260 001 001  0   A   S   H   T
>>> >0000020   E   C   H       Z   -   X   I   I   3  0  0  0  0  0  0
>>> >0000040   U   N   K   N   O   W   N  0  0  0  0  0  0  0  0  0
>>> >0000060  0  0  0  0   6   J   0   0  0  0  0  0  0  0  f  0
>>> >
>>> >So, given your intro, it's verified this is "terraSat" software and data
>>> >from an Ashtech Z-12.  But as to what is being bundled up and how, I have
>>> >no idea.  (For grins I tried a teqc metadata extraction using `-ash s`
>>> >and `-ash r` and got nothing.)
>>> >
>>> >I did some Googling and found that GeoGenius refers to a software package
>>> >of Spectra Precision -- "the ultimate GPS processing toolset" one site
>>> >called it.
>>> >
>>> >So what we have here is some software package (Terrasat? GeoGenius?)
>>> >which is part of Spectra Precision, now owned by Trimble, which slurps
>>> >up data from any receiver (e.g. Ashtech Z-12) and appears to spit out
>>> >the data into some other format, right?
>>> >
>>> >Anybody have any insights?
>>> >
>>> >--lou
>>> >
>>> >_______________________________________________
>>> >teqc mailing list
>>> >teqc at ls.unavco.org
>>> >http://ls.unavco.org/mailman/listinfo/teqc
>>> >
>>>
>>>_______________________________________________
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>>>teqc at ls.unavco.org
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>>
>>Sam Storm van Leeuwen                       e-mail: samsvl at nlr.nl
>>National Aerospace Laboratory NLR       web: http://www.nlr.nl
>>POBox 90502, 1006BM Amsterdam       phone: +31 20 511 3562
>>Netherlands                                          fax: +31 20 511 3210
>>_______________________________________________
>>teqc mailing list
>>teqc at ls.unavco.org
>>http://ls.unavco.org/mailman/listinfo/teqc
>
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Sam Storm van Leeuwen                       e-mail: samsvl at nlr.nl
National Aerospace Laboratory NLR       web: http://www.nlr.nl
POBox 90502, 1006BM Amsterdam       phone: +31 20 511 3562
Netherlands                                          fax: +31 20 511 3210



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