Subject: [IGSREPORT-2930] Wk 0865 EUREF Analysis Report
From: E. Brockmann
Date: Thu, 29 Aug 1996 23:46:08 PDT

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IGS Electronic Report    Thu Aug 29 23:46:08 PDT 1996      Message Number 2930
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Author: E. Brockmann
Subject: Wk 0865 EUREF Analysis Report

 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 0865 (DAYS 217-223, DATES 04-08-96 - 10-08-96)
 *******************************************************************************
 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 ([email-masked])
 
 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:
 -----------------------------------------------------------------------------
 EUR08657.SUM           THIS TEXT FILE
 EUR08657.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 0865
 -----------------------------------------------------------------------------
 
 REMARKS: -

 COMBINATION GPSWEEK 0865, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :     6
 TOTAL NUMBER OF STATIONS:    37
 -------------------------------------------------------------------------------
                                                                                
                              RESIDUAL RMS IN MM                                
 STATION       #FILES 123456     N     E     U                                  
 -------------------------------------------------------------------------------

 ANKR 20805M002     2 MM       3.7   2.1  18.3
 ZIMM 14001M004     4 NN NN    1.3   0.8   3.7
 CAGL 12725M003     2 MM       0.9   0.7   0.2
 MEDI 12711M003     3 MM M     0.5   0.9   5.9
 NOTO 12717M003     2 MM       1.3   1.9   4.2
 MASP 31303M002     2 MM       2.7   0.9   3.9
 VILL 13406M001     2 MM       0.5   1.1   7.8
 MADR 13407S012     3 NNN      1.9   0.8   6.5
 MATE 12734M008B    4 MMM  M   0.9   1.2   5.6
 SFER 13402M004     2 MM       2.0   3.1  16.4
 BRUS 13101M004     3  NN N    0.4   0.9   5.8
 KOSG 13504M003     4  NN NN   0.2   1.0   5.8
 BOGO               2  M M     0.4   1.3   3.7
 ONSA 10402M004     3  MM  M   1.8   0.5   2.3
 GOPE 11502M002     3  M M M   0.4   0.9   1.9
 GRAZ 11001M002     3  NNN     0.7   0.3   3.3
 HFLK 11006S003     4  M MMM   0.5   0.6   5.8
 HERS 13212M007     3  MM M    0.7   1.4   4.2
 JOZE 12204M001     3  M M M   1.0   1.7   6.3
 KIRU 10403M002     1  M         -     -     -
 TROM 10302M003     1  N         -     -     -
 KELY 43005M001     1  M         -     -     -
 THU1 43001M001     1  M         -     -     -
 POTS 14106M003     4  MMMM    0.6   0.5   5.1
 REYK 10202M001     2  MM      2.2   3.3   8.1
 WTZR 14201M010     3  N NN    0.3   0.6   0.7
 LAMA 12209M001     3  M M M   0.3   1.9   5.4
 METS 10503S011     3  MM  M   2.1   4.2   8.3
 MDVO 12309M002     2  M   M   0.7   6.0   2.8
 NYAL 10317M001     1  M         -     -     -
 WETT 14201M009     3  MM  M   0.4   0.5   4.3
 PENC 11206M006     3  M M M   1.3   0.9   3.1
 BOR1 12205M002     3  M M M   0.2   1.2   3.4
 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:    37
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          1.5
    1  BEK        10     1.0000      E          1.1
                                     U          5.6
 ---------------------------------------------------
                                     N          0.9
    2  COE        33     1.0000      E          1.1
                                     U          6.1
 ---------------------------------------------------
                                     N          1.1
    3  IFG        11     1.0000      E          2.0
                                     U          5.4
 ---------------------------------------------------
                                     N          0.4
    4  OLG        12     0.1600      E          0.3
                                     U          1.6
 ---------------------------------------------------
                                     N          0.3
    5  ROB        11     0.6600      E          0.3
                                     U          1.1
 ---------------------------------------------------
                                     N          1.2
    6  WUT        12     0.1600      E          2.2
                                     U          3.1
 ---------------------------------------------------
                                     N          0.9
       MEAN       37                 E          1.3
                                     U          4.7

[Mailed From: Brockmann Elmar <[email-masked]>]