Subject: [IGSREPORT-6126] Wk 1008 EUREF Analysis Report
From: D. Ineichen
Date: Tue, 1 Jun 1999 11:49:56 PDT

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IGS Electronic Report    Tue Jun  1 11:49:56 PDT 1999      Message Number 6126
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Author: D. Ineichen
Subject: Wk 1008 EUREF Analysis Report

 *******************************************************************************
 EUREF REPORT FOR GPS WEEK 1008 (DAYS 122-128, DATES 02-05-99 - 08-05-99)
 *******************************************************************************
 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          SINEX
 BEK - International Commission for Global Geodesy of         SINEX
       the Bavarian Academy of Sciences (BEK)
 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 (NKG)                        SINEX
 OLG - Observatory Lustbuehel Graz (OLG)                      SINEX
 ROB - Royal Observatory of Belgium (ROB)                     SINEX
 UPA - Universita di Padova (UPA)                             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.
 - 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
     and 
       GRAS 
     starting on week 0982.
 - 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:
 -----------------------------------------------------------------------------
 EUR10087.SUM           THIS TEXT FILE
 EUR10087.SNX           COMBINED EUROPEAN SOLUTION FOR GPS WEEK 1008
 -----------------------------------------------------------------------------
 
 REMARKS: -

 COMBINATION GPSWEEK 1008, EUROPE                       
 -------------------------------------------------------------------------------
 PROCESSED FILES         :    12
 TOTAL NUMBER OF STATIONS:    71
 -------------------------------------------------------------------------------
                                                                                
                      000000000111  RESIDUAL RMS IN MM                          
 STATION       #FILES 123456789012     N     E     U                            
 -------------------------------------------------------------------------------

 BELL 13431M001     2 MM             1.1   1.9   6.7
 BZRG 12751M001     3 MM        M    1.1   1.8   6.0
 CAGL 12725M003     3 MM M           1.3   1.5   1.1
 EBRE 13410M001     3 MM M           1.6   2.0   2.0
 GENO 12712M002     3 MM        M    0.4   0.3   5.1
 MATE 12734M008     4 NNN       N    0.7   1.0   3.3
 MEDI 12711M003     3 MM      M      0.5   1.3   4.9
 NOTO 12717M003     3 MM M           2.1   1.1   4.0
 SFER 13402M004     3 MM   M         1.7   1.8   5.4
 TORI 12724M002     3 MM        M    0.4   0.2   4.5
 UNPG 12752M001     3 MM        M    0.3   0.9   2.3
 VENE 12741M001     4 MM      M M    0.9   1.8  11.3
 VILL 13406M001     3 NN N           1.7   2.2   4.6
 WTZR 14201M010     4 N N    N   N   0.5   1.0   1.8
 ANKR 20805M002     3  MMM           0.7   0.9   4.3
 BUCU 11401M001     3  M      M  M   0.6   1.6   1.4
 NSSP 12312M001     3  M M       M   1.5   2.5   3.2
 SOFI 11101M002     3  MM     M      0.3   1.3   3.1
 CREU 13432M001     2  M   M         0.5   0.5   5.1
 CASC 13909S001     3  M M M         2.2   2.0   6.0
 MARS 10073M008     3  M   M   M     0.8   1.5   3.1
 UPAD 12750M002     4  M    M M M    0.3   0.8   3.6
 SJDV 10090M001     3  M   M   M     0.7   0.3   2.4
 BRST 10004M004     3   M  M   M     1.3   2.4   4.5
 KARL 14216M001     2   M      M     0.8   0.1   5.4
 BRUS 13101M004     3   M    M M     0.6   0.6   1.3
 GLSV 12356M001     3   MM       M   0.8   1.2   2.4
 KOSG 13504M003     3   N   N  N     0.3   0.5   3.4
 POTS 14106M003     3   N    N N     0.6   1.0   1.2
 VIL0 10424M001     3   MM   M       1.0   0.1   1.0
 WROC 12217M001     3   M     M  M   0.1   0.3   3.4
 EUSK 14258M003     2   M      M     1.2   0.2   4.7
 ZECK 12351M001     3   MMM          1.5   2.1   1.3
 ZWEN 12330M001     2   NN           1.3   2.2   2.3
 GRAZ 11001M002     3   N N   N      0.2   0.9   3.5
 HERS 13212M007     3   M    M M     0.6   6.5   1.7
 HOFN 10204M002     3   MM   M       1.6   1.2   5.7
 REYK 10202M001     3   NN   N       0.9   1.4   2.5
 SBGZ 11031S001     3   M     M M    0.4   0.3   2.2
 KIRU 10403M002     2   MM           1.7   0.2   2.5
 METS 10503S011     3   M    M   M   0.6   0.6   2.5
 ONSA 10402M004     4   N N  N   N   0.6   0.6   0.6
 BOR1 12205M002     3    N    N  N   0.2   0.4   4.7
 BOGO 12207M002     3    MM      M   0.3   0.3   1.4
 ZIMM 14001M004     3    N  N N      0.8   0.3   1.2
 DELF 13502M004     3    M  M  M     0.3   0.3   3.3
 DOUR 13113M001     3    M  M  M     0.3   0.2   1.7
 LAMA 12209M001     3    M    M  M   0.2   0.1   1.6
 KELY 43005M001     2    M   M       3.4   1.1   2.9
 JOEN 10512M001     3    M   M   M   0.9   0.8   2.5
 MDVO 12309M002     3    MM      M   0.9   2.0   2.1
 SODA 10513M001     2    M   M       0.7   0.2   2.8
 MAR6 10405M002     3    MM  M       0.2   0.6   1.3
 KIR0 10422M001     2    M   M       0.6   0.2   1.5
 NYAL 10317M003     2    M   M       1.1   1.0   1.8
 THU1 43001M001     2    M   M       2.5   2.1   2.4
 VAAS 10511M001     3    M   MM      0.8   0.2   0.9
 PENC 11206M006     3    M    M  M   0.3   0.8   2.1
 TROM 10302M006     2    M   M       0.6   0.4   1.4
 MOPI 11507M001     3     M   M  M   0.5   0.8   4.7
 GOPE 11502M002     3     M   M  M   0.2   0.5   2.2
 VIS0 10423M001     3     M  MM      0.3   0.5   2.2
 SVTL 12350M001     3     M  M   M   1.0   0.2   0.7
 RIGA 12302M002     3     M  M   M   0.6   0.7   2.5
 DENT 13112M001     3      MM  M     0.6   0.8   3.2
 PFAN 11005S002     3       M M M    0.2   0.4   2.2
 WARE 13114M001     2       M  M     0.3   0.1   2.2
 WSRT 13506M005     2        M M     0.3   0.2   2.4
 JOZE 12204M001     3        MM  M   0.3   0.5   2.4
 OBER 14208M001     2         MM     0.5   0.6   1.5
 HFLK 11006S003     3         M MM   0.3   0.6   2.0
 -------------------------------------------------------------------------------

 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:    71
 -------------------------------------------------------------------------------

 FILE  GRP    #SITES   COV.COMP. COMPONENT      RMS
 ---------------------------------------------------
                                     N          1.0
    1  ASI        14     0.0080      E          1.7
                                     U          2.5
 ---------------------------------------------------
                                     N          0.8
    2  BEK        22     0.0200      E          1.3
                                     U          4.4
 ---------------------------------------------------
                                     N          0.8
    3  BKG        23     0.0200      E          1.8
                                     U          1.9
 ---------------------------------------------------
                                     N          1.3
    4  COE        31     0.0200      E          1.1
                                     U          2.3
 ---------------------------------------------------
                                     N          0.5
    5  GOP        11     0.0200      E          0.8
                                     U          2.0
 ---------------------------------------------------
                                     N          0.5
    6  IGN         7     0.0200      E          1.2
                                     U          4.2
 ---------------------------------------------------
                                     N          0.2
    7  LPT         8     0.0200      E          0.3
                                     U          1.5
 ---------------------------------------------------
                                     N          0.6
    8  NKG        23     0.0200      E          1.0
                                     U          1.5
 ---------------------------------------------------
                                     N          0.4
    9  OLG        20     0.0200      E          0.5
                                     U          3.8
 ---------------------------------------------------
                                     N          0.6
   10  ROB        15     0.0200      E          1.1
                                     U          2.5
 ---------------------------------------------------
                                     N          0.4
   11  UPA        10     0.0200      E          0.3
                                     U          5.5
 ---------------------------------------------------
                                     N          0.6
   12  WUT        19     0.0200      E          0.6
                                     U          2.4
 ---------------------------------------------------
                                     N          0.8
       MEAN       71                 E          1.1
                                     U          2.9

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