Sam Storm van Leeuwen
samsvl at nlr.nl
Thu Sep 2 01:07:51 MDT 2004
Recently, Herbert gave me a GeoTracer output format description.
This might help.
At 03:51 PM 9/1/2004 +0000, you wrote:
>GeoGenius is a software developed by Dr. Herbert Landau, his company
>Terrasat ist located in Germany:
>Trimble Terrasat GmbH
>+49 8102 74330
>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
> > 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:
> > 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?
> >teqc mailing list
> >teqc at ls.unavco.org
>teqc mailing list
>teqc at ls.unavco.org
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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