[IGSREPORT-2861] Wk 0861 EUREF Analysis Report
E.
E.
Tue Aug 6 05:21:25 PDT 1996
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IGS Electronic Report Tue Aug 6 5:21:25 PDT 1996 Message Number 2861
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Author: E. Brockmann
Subject: Wk 0861 EUREF Analysis Report
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EUREF REPORT FOR GPS WEEK 0861 (DAYS 189-195, DATES 07-07-96 - 13-07-96)
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Report of the combination of the European weekly GPS solutions
International Association of Geodesy
Commission X - Global and Regional Geodetic Networks
Subcommission for Europe (EUREF)
Contributing Solutions:
-----------------------
Group Description Contribution
BEK - International Commission for Global Geodesy of SINEX
the Bavarian Academy of Sciences (BEK)
COE - European solution created at the CODE SINEX
(Center for Orbit Determination
in Europe) Analysis Center of the IGS
IFG - Institute for Applied Geodesy in Germany (IfAG) SINEX
OLG - Observatory Lustbuehel Graz (OLG) ANEQ
ROB - Royal Observatory of Belgium (ROB) ANEQ
WUT - Warsaw University of Technology (WUT) ANEQ
SINEX: Software independent exchange format Version 0.05 or 1.00
ANEQ : Bernese Software specific normal equation file
Submitted by: Center for Orbit Determination in Europe (CODE)
Astronomical Institute, University of Berne, Switzerland
Contact : E. Brockmann (brockmann at aiub.unibe.ch)
Products available through anonymous ftp using:
A) ftp ubeclu.unibe.ch -or- ftp 130.92.6.11
after login: cd aiub$ftp; cd euref
B) ftp igs.ifag.de -or- ftp 141.74.240.26
after login: cd pub/EUREF/CLUSTERS/wwww (GPS week wwww)
C) ftp jupiter.oma.be -or- ftp 193.190.230.20
after login: cd pub/euref/product/combin
Processing Strategy:
--------------------
- The combined weekly EUREF solution (EUR) was created after removing the
Analysis Center specific constraints.
- Covariance rescaling factors are derived from the sampling rate used by
each center.
In fact all solutions contribute to the combined solution with the same
weight.
- We perform free network solutions, specifying 6 no-net translation and
rotation constraints to define the geodetic datum of the combined solution.
We use the ITRF93 coordinates (up to GPS week 0859) respectively
the ITRF94 coordinates (since GPS week 0860) of the sites BRUS, KOSG, MADR,
MATE, WETT, GRAZ and ZIMM to align the free solutions with the terrestrial
reference frame.
- The comparisons between each individual solution and the combined solution
is done using a 7-parameter Helmert transformation. The Helmert parameters
are determined using all sites of the individual solutions.
- In the first Table unweighted rms values (for the coordinate components in
the local system North-East-Up), derived from the Helmert residuals, are
shown for each site.
- In the second table an (unweighted) rms is computed for each Analysis Center.
These values are derived from the Helmert residuals of all sites of a
particular Analysis Center.
AVAILABLE FILES:
-----------------------------------------------------------------------------
EUR08617.SUM THIS TEXT FILE
EUR08617.SNX COMBINED EUROPEAN SOLUTION FOR GPS WEEK 0861
-----------------------------------------------------------------------------
REMARKS: - Antanna change in MATE 12734M008 between day of GPS week 1 and 2.
Estimated difference: about 4 cm (mainly in height).
* 2 LNAACs (BEK, IFG) estimated one coordinate set valid for
the entire week. These estimates were excluded from the
combination.
* the estimates of COE and WUT were used in the combination.
- Since GPS week 0857 we discovered larger residuals for the LNAAC
BEK. We rescaled the associted covariances by a factor of 3 to
avoid that the combined solution is too much affected.
COMBINATION GPSWEEK 0861, EUROPE
-------------------------------------------------------------------------------
PROCESSED FILES : 6
TOTAL NUMBER OF STATIONS: 38
-------------------------------------------------------------------------------
RESIDUAL RMS IN MM
STATION #FILES 123456 N E U
-------------------------------------------------------------------------------
CAGL 12725M003 2 MM 0.4 3.4 11.4
NOTO 12717M003 2 MM 0.9 7.0 4.8
ZIMM 14001M004 4 NN NN 0.8 4.0 7.2
MASP 31303M002 2 MM 3.4 2.0 4.9
VILL 13406M001 2 MM 1.8 5.9 21.5
MADR 13407S012 3 NNN 1.1 4.0 0.5
MEDI 12711M003 3 MM M 0.7 3.1 20.6
SFER 13402M004 2 MM 0.3 10.8 21.5
UPAD 12750M002 2 M M 1.2 7.5 24.4
BOR1 12205M002 3 M M M 0.1 0.6 3.2
KOSG 13504M003 4 NN NN 0.8 0.7 5.6
BRUS 13101M004 3 NN N 0.5 0.8 2.7
BOGO 1 M - - -
METS 10503S011 3 MM M 1.6 0.8 3.2
MATE 12734M008 2 M M 1.3 1.3 13.9
GOPE 11502M002 3 M M M 0.6 0.7 3.3
GRAZ 11001M002 3 NNN 0.3 1.3 3.5
HERS 13212M007 3 MM M 0.7 0.7 3.9
JOZE 12204M001 3 M M M 1.0 0.4 7.0
KIRU 10403M002 1 M - - -
TROM 10302M003 1 N - - -
ONSA 10402M004 3 MM M 0.7 1.4 3.6
POTS 14106M003 4 MMMM 0.3 0.3 7.2
REYK 10202M001 2 MM 1.3 1.8 3.2
WTZR 14201M010 3 N NN 0.4 0.1 0.8
WETT 14201M009 3 MM M 0.5 0.3 4.0
LAMA 12209M001 3 M M M 0.3 1.1 7.9
ZWEN 12330M001 2 MM 1.7 2.6 7.0
MDVO 12309M002 2 M M 1.0 0.9 3.4
NYAL 10317M001 1 M - - -
PENC 11206M006 3 M M M 0.5 0.1 4.3
THU1 43001M001 1 M - - -
KELY 43005M001 1 M - - -
MATE 12734M008B 2 M M 2.2 0.9 15.4
DENT 13112M001 1 M - - -
DOUR 13113M001 1 M - - -
DELF 13502M004 1 M - - -
WARE 13114M001 1 M - - -
-------------------------------------------------------------------------------
FLAGS: M: MEAN, F: FIXED, N: FREE NETWORK RESTRICTIONS
1
-------------------------------------------------------------------------------
UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM
-------------------------------------------------------------------------------
PROCESSED FILES : 6
TOTAL NUMBER OF STATIONS: 38
-------------------------------------------------------------------------------
FILE GRP #SITES COV.COMP. COMPONENT RMS
---------------------------------------------------
N 1.6
1 BEK 9 0.1110 E 6.8
U 18.1
---------------------------------------------------
N 0.7
2 COE 33 1.0000 E 0.6
U 4.6
---------------------------------------------------
N 0.7
3 IFG 11 1.0000 E 1.3
U 4.4
---------------------------------------------------
N 0.2
4 OLG 11 0.1600 E 0.2
U 1.8
---------------------------------------------------
N 0.3
5 ROB 10 0.6600 E 0.2
U 0.8
---------------------------------------------------
N 0.9
6 WUT 12 0.1600 E 0.9
U 6.1
---------------------------------------------------
N 0.8
MEAN 38 E 2.2
U 6.8
[Mailed From: Brockmann Elmar <BROCKMANN at aiub.unibe.ch>]
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