[IGSREPORT-4476] Wk 0935 EUREF Analysis Report

D. D.
Wed Jan 7 09:18:39 PST 1998


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IGS Electronic Report    Wed Jan  7  9:18:39 PST 1998      Message Number 4476
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Author: D. Ineichen
Subject: Wk 0935 EUREF Analysis Report

 
 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 0935 (DAYS 341-347, DATES 07-12-97 - 13-12-97)
 *******************************************************************************
 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

 ASI - Nuova Telespazio S.p.A., Space Geodesy Center          SINEX
 BEK - International Commission for Global Geodesy of         SINEX
       the Bavarian Academy of Sciences (BEK)
 COE - European solution created at CODE                      SINEX
       (Center for Orbit Determination in Europe)
 GOP - Geodetic Observatory Pecny, Czech Republic             SINEX
 IFG - Institute for Applied Geodesy in Germany (IfAG)        SINEX
 LPT - Bundesamt fuer Landestopographie (L+T), Switzerland    SINEX
 NKG - Nordic Geodetic Commision (NKG)                        SINEX
 OLG - Observatory Lustbuehel Graz (OLG)                      SINEX
 ROB - Royal Observatory of Belgium (ROB)                     SINEX
 WUT - Warsaw University of Technology (WUT)                  SINEX
 
 SINEX: Software independent exchange format Version 0.05 or 1.00

 Submitted by: Center for Orbit Determination in Europe (CODE)
               Astronomical Institute, University of Berne, Switzerland

 Contact     : Daniel Ineichen (dineiche 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 ftpserver.oma.be -or-  ftp 193.190.249.203
               after login: cd pub/astro/euref/product/combin

 Processing Strategy:
 --------------------

 - The combined weekly EUREF solution (EUR) is 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.
   The rescaling factors of all centers are chosen such that they give
   the resulting EUREF solution realistic formal errors.
 - The ITRF93 coordinates (up to GPS week 0859) respectively
   the ITRF94 coordinates (since GPS week 0860) of the sites:
      BRUS, GRAZ, KOSG, MATE, METS, ONSA, WTZR, and ZIMM 
   are used to align the 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:
 -----------------------------------------------------------------------------
 EUR09357.SUM           THIS TEXT FILE
 EUR09357.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 0935
 -----------------------------------------------------------------------------
 
 REMARKS: - Contributing solutions of ASI and BEK not available 

          - Norwegian stations STAV, OSLO, TRON, VARD not included in combined
            solution due to undocumented antenna height changes.

          - Site MADR not included in combined solution

   
 COMBINATION GPSWEEK 0935, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :     8
 TOTAL NUMBER OF STATIONS:    54
 -------------------------------------------------------------------------------
                                                                                
                                RESIDUAL RMS IN MM                              
 STATION       #FILES 12345678     N     E     U                                
 -------------------------------------------------------------------------------

 ANKR 20805M002     2 M M        1.1   0.8   5.5
 BOGO 12207M002     3 MM     M   0.2   0.7   2.5
 BOR1 12205M002     3 M    M M   0.5   0.3   1.9
 MAR6 10405M002     3 MM  M      0.6   0.8   2.6
 HFLK 11006S003     3 M    M M   0.8   0.6   4.6
 CAGL 12725M003     1 M            -     -     -
 NOTO 12717M003     1 M            -     -     -
 DELF 13502M004     3 M  M  M    0.1   0.5   0.8
 DOUR 13113M001     3 M  M  M    0.2   0.5   0.9
 TOUL 10003M004     2 M     M    0.8   1.5   1.0
 ZIMM 14001M004     3 N  N N     0.8   0.8   3.3
 EBRE 13410M001     1 M            -     -     -
 MASP 31303M002     1 M            -     -     -
 HOFN 10204M002     3 M M M      0.3   0.4   5.0
 REYK 10202M001     3 M M M      0.4   0.7   2.6
 VIL0 10424M001     3 M M M      0.5   0.8   1.7
 JOEN 10512M001     3 M   M  M   0.7   0.8   5.4
 ZWEN 12330M001     3 MMM        0.6   1.1   3.2
 KIRU 10403M002     2 M M        0.9   0.3   2.2
 KELY 43005M001     2 M   M      2.0   2.4   2.8
 THU1 43001M001     2 M   M      2.7   1.9   7.5
 KIR0 10422M001     2 M   M      1.1   3.2   2.8
 LAMA 12209M001     3 M    M M   0.6   0.5   2.8
 MDVO 12309M002     3 MM     M   1.1   4.4   4.9
 PENC 11206M006     3 M    M M   0.4   0.4   1.9
 VILL 13406M001     1 M            -     -     -
 VAAS 10511M001     3 M   MM     2.4   0.9   4.5
 GOPE 11502M002     3  M   M M   0.6   0.2   0.6
 ONSA 10402M004     4  NN N  N   0.3   0.5   3.9
 VIS0 10423M001     3  M  MM     0.8   0.5   2.0
 GRAZ 11001M002     3  NN  N     0.5   1.0   3.7
 MOPI 11507M001     3  M   M M   0.6   0.2   2.6
 OBER 14208M001     3  M   MM    0.6   0.9   2.4
 SVTL 12350M001     3  M  M  M   0.8   1.5   1.7
 RIGA 12302M002     3  M  M  M   0.2   0.8   1.0
 SOFI 11101M002     2   M  M     1.1   0.8   2.1
 BRUS 13101M004     3   N N N    0.6   0.2   5.7
 WROC 12217M001     3   M  M M   0.2   0.9   4.1
 KOSG 13504M003     3   NN  N    0.5   1.0   3.5
 METS 10503S011     3   N N  N   2.1   1.7   2.3
 MATE 12734M008     1   N          -     -     -
 NICO 14302M001     2   M  M     0.6   5.3   2.0
 ZECK 12351M001     1   M          -     -     -
 POTS 14106M003     3   M M M    0.3   0.2   2.5
 WTZR 14201M010     3   N N  N   0.6   0.6   2.9
 DENT 13112M001     2    M  M    0.2   0.2   0.9
 GRAS 10002M006     2    M  M    0.5   0.4   2.3
 PFAN 11005S002     3    M MM    0.6   0.5   2.2
 WARE 13114M001     2    M  M    0.2   0.1   2.0
 UPAD 12750M002     2    M M     0.9   0.7   2.0
 JOZE 12204M001     3     MM M   0.5   0.3   1.3
 WSRT 13506M005     2     M M    0.6   0.1   1.3
 MEDI 12711M003     1      M       -     -     -
 VENE 12741M001     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         :     8
 TOTAL NUMBER OF STATIONS:    54
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          0.8
    1  COE        27     0.0200      E          1.2
                                     U          3.0
 ---------------------------------------------------
                                     N          0.7
    2  GOP        12     0.0200      E          1.9
                                     U          2.4
 ---------------------------------------------------
                                     N          0.9
    3  IFG        18     0.0200      E          1.1
                                     U          3.8
 ---------------------------------------------------
                                     N          0.2
    4  LPT         9     0.0200      E          0.3
                                     U          1.7
 ---------------------------------------------------
                                     N          0.5
    5  NKG        19     0.0200      E          0.6
                                     U          1.7
 ---------------------------------------------------
                                     N          1.0
    6  OLG        19     0.0200      E          1.2
                                     U          2.4
 ---------------------------------------------------
                                     N          0.3
    7  ROB        12     0.0200      E          0.3
                                     U          1.7
 ---------------------------------------------------
                                     N          0.4
    8  WUT        16     0.0200      E          0.5
                                     U          3.0
 ---------------------------------------------------
                                     N          0.7
       MEAN       54                 E          1.0
                                     U          2.6


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