[IGSMAIL-3015]: ZIMM data corrupted on doy 252-254
Elmar.Brockmann at lt.admin.ch
Elmar.Brockmann at lt.admin.ch
Tue Sep 12 08:22:42 PDT 2000
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IGS Electronic Mail 12 Sep 08:23:32 PDT 2000 Message Number 3015
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Author: E. Brockmann
As announced in a previous mail the antenna of ZIMM was used within an
antenna calibration campaign on doy 250 - 252.
In the evening of doy 252 (Friday) the antenna was reinstalled.
Unfortunately the data were not usable for precise geodetic analysis on the
days 252 - 254. Thanks to the Bernese Team at the university of Berne for
giving us a quick feedback. On Monday we performed a "power-off - power-on"
approach which solved the problem (?). So we have normal operation since
Monday (doy 255).
We conclude:
- Please do not use the data between 250 and 252.
Sorry for any inconveniences this may have caused.
With kind regards,
E. Brockmann
p.s. Another (well known) conclusion: No changes on Friday evening...
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Dr. Elmar Brockmann
Swiss Federal Office of Topography (Bundesamt fuer Landestopographie)
Section Satellite Geodesy (Abteilung Satelliten-Geodäsie)
Seftigenstrasse 264
CH-3084 Wabern
Switzerland
Phone: ++41 / 31 / 963 22 56
Fax: ++41 / 31 / 963 24 59
Operator: ++41 / 31 / 963 21 11
Internet: Elmar.Brockmann at lt.admin.ch
Web-Site: http://www.swisstopo.ch
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