Subject: [IGSREPORT-6507] Wk 1026 EUREF Analysis Report
From: M. Becker, BKG, Dept. G1
Date: Mon, 4 Oct 1999 3:54:16 PDT

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IGS Electronic Report    Mon Oct  4  3:54:16 PDT 1999      Message Number 6507
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Author: M. Becker, BKG, Dept. G1
Subject: Wk 1026 EUREF Analysis Report

 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 1026 (DAYS 248-254, DATES 05-09-99 - 11-09-99)
 *******************************************************************************
 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, Italy   SINEX
 BEK - International Commission for Global Geodesy of         SINEX
       the Bavarian Academy of Sciences, Germany 
 BKG - Bundesamt fuer Kartographie und Geodaesie, Germany     SINEX
 COE - European solution created at CODE                      SINEX
       (Center for Orbit Determination in Europe)
 GOP - Geodetic Observatory Pecny, Czech Republic             SINEX
 IGN - Institut Geographique National, France                 SINEX
 LPT - Bundesamt fuer Landestopographie (L+T), Switzerland    SINEX
 NKG - Nordic Geodetic Commision                              SINEX
 OLG - Observatory Lustbuehel Graz, Austria                   SINEX
 ROB - Royal Observatory of Belgium                           SINEX
 UPA - Universita di Padova, Italy                            SINEX
 WUT - Warsaw University of Technology, Poland                SINEX
 
 SINEX: Software independent exchange format Version 0.05 or 1.00

 Submitted by: Bundesamt fuer Kartographie und Geodaesie (BKG)
               Frankfurt am Main, Germany                                 

 Contact     : Matthias Becker ([email-masked]) 
 
 Products available through anonymous ftp using:
            A) ftp igs.ifag.de      -or-  ftp 141.74.240.26
               after login: cd pub/EUREF/CLUSTERS/wwww  (GPS week wwww)
            B) ftp ftpserver.oma.be -or-  ftp 193.190.231.100
               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.
 - To align the EUREF weekly solutions with the terrestrial reference frame
   a selected set of "reference stations" is fixed to their ITRF coordinates.
   - For the realization of the ITRF94 reference frame the following sites
     were used (from GPS week 0860 to GPS week 0946):
       BRUS, GRAZ, KOSG, MATE, METS, ONSA, WTZR, ZIMM 
   - For the realization of the ITRF96 reference frame the following sites
     are used from GPS week 0947 - 0981:
       BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZIMM, ZWEN, VILL
     From GPS week 0982 - 1020:
       BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZIMM, ZWEN, VILL, GRAS
   - For the realization of the ITRF97 reference frame the following sites
     are used from GPS week 1021 onwards:
       BOR1, GRAZ, KOSG, MATE, ONSA, POTS, REYK, WTZR, ZWEN, VILL, GRAS
       NYA1, TRO1, THU1 
 - 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:
 -----------------------------------------------------------------------------
 EUR10267.SUM           THIS TEXT FILE
 EUR10267.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 1026
 -----------------------------------------------------------------------------
 
 REMARKS: - SITES MOPI 11507M001 AND MDVO 12309M002 OF ONE AC EXCLUDED DUE TO
            LARGE HEIGHT RESIDUALS
            SITE ZWEN 12330M001 ECLUDED BECAUSE OF ONLY ONE DAY OF OBSERVATIONS

 COMBINATION GPSWEEK 1026, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    12
 TOTAL NUMBER OF STATIONS:    81
 -------------------------------------------------------------------------------
                                                                                
                      000000000111  RESIDUAL RMS IN MM                          
 STATION       #FILES 123456789012     N     E     U                            
 -------------------------------------------------------------------------------

 BELL 13431M001     3 MM   M         1.4    .6   8.2
 BZRG 12751M001     3 MM        M     .2   3.3   6.1
 CAGL 12725M003     3 MM M            .8   2.1   3.2
 EBRE 13410M001     3 MM M            .7   2.5   2.1
 GENO 12712M002     3 MM        M     .6    .3   3.2
 LAMP 12706M002     3 M M       M    2.4   1.2   2.6
 MATE 12734M008     4 NNN       N     .8   1.5   4.2
 MEDI 12711M003     3 MM      M       .4    .4   2.8
 NOTO 12717M003     3 MM M           1.4   1.1   4.4
 SFER 13402M004     3 MM   M         1.1   3.8   4.4
 TORI 12724M002     3 MM        M     .4   1.9   7.7
 UNPG 12752M001     3 MM        M     .8    .9   4.4
 VENE 12741M001     4 MM      M M    1.6    .6  12.8
 VILL 13406M001     3 NN N           1.3   1.0   1.6
 WTZR 14201M010     4 N N    N   N    .6   1.4   3.7
 ACOR 13434M001     2  M   M         1.0   1.9   5.3
 ALAC 13433M001     2  M   M         1.6    .2   9.1
 ANKR 20805M002     3  MMM           1.6    .8   2.5
 SOFI 11101M002     3  MM     M       .4    .2   3.2
 CASC 13909S001     3  M M M         1.2   1.3   4.2
 CREU 13432M001     3  M   M    M    1.3   1.4   6.7
 LLIV 13436M001     3  M  M      M    .5    .9   3.5
 MAS1 31303M002     3  M M M         3.1   1.2   3.8
 MARS 10073M008     3  M   M   M      .4   1.5   3.6
 UPAD 12750M002     4  M    M M M    1.0    .2   3.0
 GRAS 10002M006     3  N   NN         .9   1.4  11.3
 TOUL 10003M004     3  M   M   M      .4    .3   5.6
 SJDV 10090M001     3  M   M   M      .5    .6   4.1
 TUBI 20806M001     3  M  M   M       .9   1.1   4.0
 BRST 10004M004     3   M  M   M      .4   3.0   2.1
 BRUS 13101M004     3   M    M M      .2    .7    .6
 POTS 14106M003     3   N    N N      .7    .5   3.0
 EUSK 14258M003     2   M      M      .8   1.0   2.5
 KARL 14216M001     3   M      MM     .6    .8   6.3
 GLSV 12356M001     3   MM       M    .8    .8   2.7
 ZECK 12351M001     3   MMM           .9    .8   1.1
 GRAZ 11001M002     3   N N   N       .1    .8   2.7
 HERS 13212M007     3   M    M M     1.1   6.5   8.7
 HOFN 10204M002     4   MM   M   M    .5    .5   6.6
 REYK 10202M001     3   NN   N        .7    .8   2.7
 VIL0 10424M001     3   MM   M        .7    .2   1.2
 KOSG 13504M003     3   N   N  N      .6    .4   2.5
 KIRU 10403M002     3   MM       M    .2    .6   3.7
 METS 10503S011     3   M    M   M    .9    .5   3.3
 SBGZ 11031S001     3   M     M M     .6    .6   5.4
 ONSA 10402M004     4   N N  N   N    .3    .5   3.7
 BUCU 11401M001     3   M     M  M    .6    .9   4.0
 BOR1 12205M002     3    N    N  N    .8    .4   3.5
 TERS 13534M001     3    M  M  M      .8    .3   2.9
 BOGO 12207M002     3    MM      M    .2    .4   2.7
 DELF 13502M004     3    M  M  M      .4    .3   1.4
 DOUR 13113M001     3    M  M  M      .3    .5   3.5
 MDVO 12309M002     2    MM          1.4    .8   1.9
 JOEN 10512M001     3    M   M   M    .4    .3   4.2
 KIR0 10422M001     3    MM  M        .6    .3   1.4
 LAMA 12209M001     3    M    M  M    .3    .2   4.6
 MAR6 10405M002     3    MM  M        .0    .4   2.1
 PENC 11206M006     3    M    M  M    .8    .8   5.0
 ZIMM 14001M004     3    M  M M       .3    .4   3.8
 THU1 43001M001     3    N   N   N   1.4   1.7   5.0
 SODA 10513M001     3    M   MM       .7    .6   1.8
 VAAS 10511M001     3    M   MM       .4    .4   1.2
 TRO1 10302M006     3    NN  N        .2    .5   6.4
 NYA1 10317M003     3    N   N   N    .4    .8   7.2
 UZHL 12301M001     3     M   M  M    .5    .2   3.8
 VIS0 10423M001     3     M  MM       .4    .3   2.7
 EIJS 13533M001     3     M M  M      .7    .2   2.6
 OBER 14208M001     3     M   MM      .2    .7   3.5
 GOPE 11502M002     3     M   M  M    .5    .5   1.2
 MOPI 11507M001     2     M   M       .4    .0   7.0
 SVTL 12350M001     3     M  M   M   1.1    .5   2.0
 MANS 10091M001     3     MM   M      .3    .9   3.2
 RIGA 12302M002     3     M  M   M    .3    .2   4.9
 ESCO 13435M001     2      M     M   1.1    .8  11.3
 DENT 13112M001     3      MM  M     2.1    .8   4.0
 WARE 13114M001     3      MM  M     2.0    .7   4.8
 PFAN 11005S002     3       M M M     .4    .4   2.6
 JOZE 12204M001     3        MM  M    .5    .9   4.5
 WSRT 13506M005     2        M M      .7    .7   1.6
 KELY 43005M001     2        M   M    .4   1.8   8.7
 HFLK 11006S003     3         M MM    .3    .3   3.7
 -------------------------------------------------------------------------------

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

1

 -------------------------------------------------------------------------------
 UNWEIGHTED RMS VALUES WITH RESPECT TO THE COMBINED SOLUTION IN MM
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    12
 TOTAL NUMBER OF STATIONS:    81
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          1.4
    1  ASI        15      .0080      E          2.6
                                     U          4.2
 ---------------------------------------------------
                                     N           .7
    2  BEK        27      .0200      E           .8
                                     U          3.8
 ---------------------------------------------------
                                     N           .4
    3  BKG        23      .0200      E          1.5
                                     U          2.6
 ---------------------------------------------------
                                     N           .7
    4  COE        30      .0200      E           .4
                                     U          2.6
 ---------------------------------------------------
                                     N           .5
    5  GOP        19      .0200      E           .5
                                     U          3.7
 ---------------------------------------------------
                                     N          1.6
    6  IGN        16      .0200      E          1.1
                                     U          5.8
 ---------------------------------------------------
                                     N           .8
    7  LPT        11      .0200      E           .3
                                     U          3.1
 ---------------------------------------------------
                                     N           .5
    8  NKG        23      .0200      E           .5
                                     U          3.1
 ---------------------------------------------------
                                     N           .4
    9  OLG        22      .0200      E           .4
                                     U          4.5
 ---------------------------------------------------
                                     N           .6
   10  ROB        19      .0200      E          1.6
                                     U          2.8
 ---------------------------------------------------
                                     N           .8
   11  UPA        13      .0200      E           .7
                                     U          5.9
 ---------------------------------------------------
                                     N           .6
   12  WUT        23      .0200      E           .9
                                     U          5.1
 ---------------------------------------------------
                                     N           .8
       MEAN       81                 E          1.1
                                     U          3.9

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