Subject: [IGSREPORT-4275] Wk 0925 EUREF Analysis Report (2)
From: D. Ineichen
Date: Wed, 29 Oct 1997 2:56:23 PST

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IGS Electronic Report    Wed Oct 29  2:56:23 PST 1997      Message Number 4275
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Author: D. Ineichen
Subject: Wk 0925 EUREF Analysis Report (2)

 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 0925 (DAYS 271-277, DATES 28-09-97 - 04-10-97)
 *******************************************************************************
 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 ([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 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:
 -----------------------------------------------------------------------------
 EUR09257.SUM           THIS TEXT FILE
 EUR09257.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 0925
 -----------------------------------------------------------------------------
 
 REMARKS: - In the first submission of EUR09257.SNX new station HOFN was 
            included with a wrong antenna height (old station LOG file, 0.114 m)

            New corrected antenna height: 0.055 m

          - New sites included in combined EUREF solution week 0925 :

            ZECK 12351M001
            HOFN 10204M002

 COMBINATION GPSWEEK 0925, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    10
 TOTAL NUMBER OF STATIONS:    62
 -------------------------------------------------------------------------------
                                                                                
                      0000000001  RESIDUAL RMS IN MM                            
 STATION       #FILES 1234567890     N     E     U                              
 -------------------------------------------------------------------------------

 CAGL 12725M003     3 MMM          0.5   0.9   2.4
 EBRE 13410M001     3 MMM          0.9   0.3   5.3
 MATE 12734M008     3 NN  N        1.4   1.3   5.3
 MEDI 12711M003     3 MM     M     0.2   1.6   2.4
 NOTO 12717M003     3 MMM          1.2   0.5   1.5
 VENE 12741M001     3 MM     M     2.4   3.5  10.9
 VILL 13406M001     3 MMM          1.7   0.6   7.7
 WTZR 14201M010     5 N   NNN  N   0.6   2.0   3.9
 SFER 13402M004     3 MMM          1.3   2.0  10.9
 ANKR 20805M002     3  MM M        1.6   2.6   5.2
 TOUL 10003M004     3  MM     M    0.9   0.3   2.8
 GRAS 10002M006     3  M   M  M    0.3   0.1   3.1
 MASP 31303M002     2  MM          1.6   1.4   5.7
 MADR 13407S012B    2  M  M        0.7   1.6   3.4
 SOFI 11101M002     3  M  M  M     0.4   1.0   1.9
 NICO 14302M001     3  M  M  M     0.6   1.3   4.5
 UPAD 12750M002     3  M   M M     0.2   0.5   2.7
 BOR1 12205M002     3   M    M M   0.6   0.5   2.4
 BOGO 12207M002     3   MM     M   0.2   0.8   2.5
 LAMA 12209M001     3   M    M M   1.2   0.5   2.4
 MDVO 12309M002     3   MM     M   1.0   2.9   6.3
 ZWEN 12330M001     3   MMM        2.8   0.5   2.0
 DELF 13502M004     2   M     M    0.6   0.3   3.0
 DOUR 13113M001     3   M  M  M    0.4   0.2   0.5
 HFLK 11006S003     3   M    M M   1.2   0.9   4.8
 ZIMM 14001M004     3   N  N N     0.9   0.7   2.6
 KIRU 10403M002     2   M M        0.5   4.5   7.2
 KELY 43005M001     2   M   M      1.0   0.3   2.2
 THU1 43001M001     2   M   M      3.6   0.3   7.0
 REYK 10202M001     3   M M M      1.1   3.3   3.4
 PENC 11206M006     3   M    M M   0.3   0.6   4.4
 MAR6 10405M002     3   MM  M      0.5   1.3   1.8
 JOEN 10512M001     3   M   M  M   0.8   1.5   3.0
 KIR0 10422M001     2   M   M      0.5   0.5   1.1
 VIL0 10424M001     2   M   M      0.1   0.6   1.8
 STAV 10330M001     3   M   M M    0.7   0.6   2.6
 SODA 10513M001     2   M   M      0.2   1.0   3.0
 OSLO 10307M001     3   M   M M    1.0   3.6  10.0
 TRON 10331M001     2   M   M      0.2   4.3  10.6
 VAAS 10511M001     2   M   M      0.4   0.3   1.4
 VARD 10322M002     2   M   M      1.5   5.9   1.5
 GOPE 11502M002     3    M   M M   0.1   0.2   1.1
 ONSA 10402M004     4    NN N  N   0.4   2.0   5.8
 VIS0 10423M001     2    M  M      0.3   0.8   2.6
 GRAZ 11001M002     4    NNN N     0.2   0.4   4.0
 MOPI 11507M001     3    M   M M   0.2   0.3   4.4
 ZECK 12351M001     1    M           -     -     -
 RIGA 12302M002     3    M  M  M   0.3   0.9   2.0
 SVTL 12350M001     3    M  M  M   0.8   1.2   1.4
 OBER 14208M001     3    M   MM    0.9   0.5   4.3
 WROC 12217M001     3     M  M M   0.6   0.9   2.0
 BRUS 13101M004     3     N N N    0.3   0.7   4.9
 HERS 13212M007     3     M M M    0.4   0.7   2.7
 KOSG 13504M003     3     NN  N    0.5   0.6   2.2
 HOFN 10204M002     1     M          -     -     -
 METS 10503S011     3     N N  N   0.9   1.0   2.4
 POTS 14106M003     3     M M M    0.6   1.1   6.0
 DENT 13112M001     2      M  M    0.1   0.1   1.6
 WARE 13114M001     2      M  M    0.0   0.3   1.7
 PFAN 11005S002     3      M MM    1.0   0.3   2.2
 WSRT 13506M005     2       M M    0.2   0.4   2.3
 JOZE 12204M001     3       MM M   0.8   0.7   1.9
 -------------------------------------------------------------------------------

 FLAGS:    M: MEAN, F: FIXED, N: FREE NETWORK RESTRICTIONS

1

 -------------------------------------------------------------------------------
 UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    10
 TOTAL NUMBER OF STATIONS:    62
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          1.8
    1  ASI         9     0.0080      E          2.4
                                     U          6.6
 ---------------------------------------------------
                                     N          0.4
    2  BEK        16     0.0200      E          0.7
                                     U          3.6
 ---------------------------------------------------
                                     N          1.0
    3  COE        32     0.0200      E          1.8
                                     U          4.1
 ---------------------------------------------------
                                     N          0.8
    4  GOP        13     0.0200      E          0.5
                                     U          3.6
 ---------------------------------------------------
                                     N          1.1
    5  IFG        18     0.0200      E          1.9
                                     U          5.1
 ---------------------------------------------------
                                     N          0.2
    6  LPT        10     0.0200      E          0.2
                                     U          0.9
 ---------------------------------------------------
                                     N          0.4
    7  NKG        24     0.0200      E          1.1
                                     U          2.7
 ---------------------------------------------------
                                     N          0.7
    8  OLG        17     0.0200      E          0.6
                                     U          3.6
 ---------------------------------------------------
                                     N          0.6
    9  ROB        15     0.0200      E          0.5
                                     U          2.2
 ---------------------------------------------------
                                     N          0.4
   10  WUT        16     0.0200      E          0.9
                                     U          2.5
 ---------------------------------------------------
                                     N          0.8
       MEAN       62                 E          1.3
                                     U          3.6

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