[IGSMAIL-4736]: recent BOGT height change ???

Jim Ray jray at bipm.org
Fri Nov 28 04:21:45 PST 2003


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IGS Electronic Mail      28 Nov 04:21:23 PST 2003      Message Number 4736
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Author: Jim Ray

An alert to users of recent BOGT data -- according to the IGS
SINEX combination for week 1244, the height appears to have
changed by about 5.5 cm since the previous week (see below).
BOGT solutions from all 5 Analysis Centers that used data from
that station were rejected from the combination.  There have been
no public messages of problems or changes at the station.

See http://igscb.jpl.nasa.gov/mail/igsreport/2003/msg00939.html :

5-6)      Outliers:
===================
Thresholds set at 5 sigmas and 50 mm.
 Solution         Solution     |  Station   |    N       E       U  |
           Minus               |code id soln|   (mm)    (mm)    (mm)|
-------------------------------|------------|-----------------------|
igs03P1243.snx   esa12447.snx  |BOGT  A    2|    5.5   -12.0   -66.9|
igs03P1243.snx   jpl12447.snx  |BOGT  A    2|   -4.0     1.1   -50.7|
igs03P1243.snx   ngs12447.snx  |BOGT  A    2|   -3.0    -6.0   -68.0|
IGS03P45.snx     gfz12447.snx  |BOGT  A    2|    2.3    -3.7   -53.0|
IGS03P45.snx     sio12447.snx  |BOGT  A    2|    0.3    -5.3   -60.3|
-------------------------------|------------|-----------------------|






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