Subject: [IGEXMail-0309] Wk 0993 BKG IGEX Analysis Report
From: Heinz Habrich <[email-masked]>
Date: 27 Apr 1999 10:37:54

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IGEX Electronic Mail    27-Apr-1999 10:37:54                   Message No 0309
******************************************************************************

Author: Heinz Habrich <[email-masked]>
Subject: Wk 0993 BKG IGEX Analysis Report

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BKG IGEX ANALYSIS REPORT                  GPS WEEK 0993 (DAYS 017 - 023, 1999)
******************************************************************************
                                                                              
Submitted by:    Bundesamt fuer Kartographie und Geodaesie (BKG)              
                 Richard-Strauss-Allee 11, D-60598 Frankfurt Main, Germany    
                         Phone : +49-69-63331                                 
                         Fax   : +49-69-6333425                               
                         E-Mail: [email-masked]                              
                                                                              
Product access:  anonymous ftp to igs.ifag.de (141.74.240.26)                 
                 subdirectory IGEX/products/wwww                              
                                                                              
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PROCESSING SCHEME:                                                            
------------------------------------------------------------------------------
SOFTWARE:                                                                     
    Bernese GPS Software                                                      
                                                                              
ORBIT COMPUTATION:                                                            
    Double difference phase observations of GLONASS and GPS satellites are    
    processed in ionosphere free linear combination.                          
                                                                              
    IGS orbits and Earth rotation parameters are fixed.                       
                                                                              
    Six initial conditions and nine radiation pressure parameters per         
    satellite are determined for GLONASS satellites.                          
                                                                              
    The middle day of a 3-day-arc is used for the daily orbit results.        
                                                                              
    The daily orbit files include GPS satellite clock values from IGS         
    estimates and broadcasted values for GLONASS satellite clocks.            
                                                                              
    The coordinates of the following stations are contrained to ITRF-96:      
    IRKZ OS0G YARR ZIMZ.                                                      
                                                                              
GLONASS/GPS TIME OFFSET:                                                      
    Code observations of combined GLONASS/GPS receivers are used to           
    determine the GLONASS/GPS time offset.                                    
                                                                              
    This offset includes the modulo 1 sec system time scale difference of     
    GLONASS and GPS and an additional offset between the receiver's           
    'GPS clock' and 'GLONASS clock'. The additional offset is receiver        
    dependent.                                                                
                                                                              
TRANSFORMATION PARAMETERS BETWEEN ITRF AND PZ90:                              
    The transformation parameters are derived from GLONASS precise orbits     
    (given in ITRF) and GLONASS broadcast orbits (given in PZ90).             
------------------------------------------------------------------------------

                                                                              
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ORBIT REPEATABILITY, DAILY SOLUTIONS COMPARED TO 7-DAY-ARC (CM):              
------------------------------------------------------------------------------
     GLONASS Satellites:                                                      
     103 104 106 109 110 111 113 116 117 120 122
------------------------------------------------------------------------------
  17  16   9  17  36  34  30  42  32  99   9  15
  18  10  13  16  25  63  15  28  21  99  15   8
  19  11  11   8  55  47  16  22  43  95   9  12
  20  16  15  22  30  35  13  19  40  73  10  13
  21  13  17  14  49  21  20  21  35  42  12  15
  22  13  16  21  64  31  18  20  34  73   7  10
  23  12  22  17  57  41  26  17  39  65  15  27
------------------------------------------------------------------------------
 ALL  13  15  17  47  41  21  25  36  99  11  15
------------------------------------------------------------------------------

                                                                              
------------------------------------------------------------------------------
GLONASS/GPS TIME OFFSET:                                                      
------------------------------------------------------------------------------
         OFFSET    (NS)                                                       
         RMS ERROR (NS)                                                       
DAY    :       017       018       019       020       021       022       023
STATION                                                                       
------------------------------------------------------------------------------
3SNA      1002.023   992.057   998.066  1006.503  1002.134   983.216   981.027
              .989     1.006     1.011     1.015     1.052     1.059     1.006
BIPD      1003.078  1003.901   995.472  1008.019  1007.602   988.004   989.168
             1.059     1.041     1.213     1.312     1.066     1.065     1.026
BORG       995.555  1000.199   987.791  1001.782  1001.858   982.774   985.213
              .968      .929      .950      .921      .942      .957      .941
BRUG       998.844  1002.014   992.084  1003.212  1002.894   986.910   988.045
              .967      .915      .950      .934      .967      .963      .952
CRAR       -96.024   -99.409   -98.967   -97.827   -94.726  -112.627  -120.986
              .859      .877      .883      .872      .875      .844      .877
CSIR                                     980.563             987.446          
                                           2.360                .996          
EKAT                                                        -103.941          
                                                                .925          
GRAB        45.523    51.893    38.047    52.938    53.255    35.595    33.707
              .996      .934      .936      .925      .968      .954      .938
HERP      1003.817  1007.782   995.046  1007.011  1008.031   990.414          
              .987      .944      .996      .953     1.015     1.204          
IRKZ        49.739              44.481    52.869    56.786    32.294    31.275
              .936                .905      .917      .919      .907      .906
KHAB        45.141    37.482    40.659    48.717    49.454    25.956    22.385
              .959      .936      .948      .940      .928      .935      .948
KR0G       -13.462   -13.075              -7.589    -9.730   -32.059          
              .871      .838                .877      .864     1.216          
LDS1      -948.364  -948.756  -950.331  -944.577  -944.698  -961.838  -954.914
             1.968     1.300     1.547    25.115     1.410     1.421     1.413
LRBA        43.705    50.548    40.326    49.477    48.821    36.514    30.576
              .964     1.138     1.219      .946      .963      .981      .933
MDOA       -96.407  -102.019   -98.361   -92.577   -93.680  -111.617  -115.092
              .964      .950      .968      .975      .952     1.000      .943
MDVZ        53.817    54.547    44.238    58.526    57.461    35.365    35.984
              .959      .881      .964      .994      .918      .947      .904
METZ        30.848    35.157    27.335    39.910    40.196    21.545    19.309
              .893      .846      .898      .884      .901      .923      .874
NPLC       998.907  1003.321   988.053  1002.738  1002.160   986.430   988.268
              .975      .937     1.470      .960      .988      .981      .959
OS0G        33.646    37.635                        46.337    21.783    16.011
              .944      .868                         1.174     1.109     1.217
REUN        47.500    39.011    35.405              41.815    35.956    25.007
             1.716     1.460     1.247               1.411     1.423     1.628
REYZ                  80.486    75.509    86.761    80.748    62.029    57.613
                        .863      .897      .888      .888      .894      .874
SANG       985.833   983.763   982.741   996.320             971.815   974.168
              .997      .975      .996     1.314               1.058     1.812
STRR                            28.444    27.730    35.601    10.571     8.660
                                 1.028      .989     1.002      .959     1.000
SUNM       -29.669   -36.548   -28.956   -33.194   -25.368             -52.119
              .990     1.009      .994      .966      .996                .989
SVT3       -94.164   -92.358  -103.360   -91.035   -89.014  -109.045  -108.162
              .910      .852      .892     1.576      .897      .906      .876
THU2        41.870    40.797    35.676    46.367    43.068    23.606    26.926
              .867      .835      .857      .845      .861      .871      .904
TSKA        38.135    35.251    37.652    45.850    41.470    19.297    17.703
              .976      .993      .979     1.003      .946      .954      .956
USNX       994.058   994.516   988.329   999.569   995.060   982.705   978.780
             1.007      .994     1.041     1.008     1.012     1.039     1.016
VSLD       997.822  1001.946   990.654  1003.811  1002.821   985.562   989.015
              .983      .926      .962      .947      .962      .961      .968
WTZG      -761.163                                                            
             1.112                                                            
YAKT       -91.441   -97.564  -100.842   -86.205   -89.688  -113.517  -112.877
              .897      .863      .891     1.827      .881      .880      .881
YARR        60.344    58.141    60.228    58.890    62.660    33.544    36.433
              .977      .983     1.222      .984      .971     1.999      .978
ZIMZ        28.448    31.039    20.316    33.950    32.953    15.635    14.631
              .964      .913      .939      .926      .965      .934      .928
------------------------------------------------------------------------------

                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 1 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
DAY     OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
017           119060             3274            .0015                        
018           113769             3231            .0015                        
019           103121             2942            .0016                        
020           106922             3199            .0018                        
021           133726             3409            .0016                        
022           121841             3410            .0016                        
023           120135             2990            .0016                        
------------------------------------------------------------------------------

                                                                              
------------------------------------------------------------------------------
COORDINATE COMPARISON FOR 1 DAY SOLUTIONS:                       GPS WEEK 0993
------------------------------------------------------------------------------
TOTAL NUMBER OF STATIONS:    29
------------------------------------------------------------------------------
                      WEEKDAY  RESIDUAL RMS IN MM
STATION        #DAYS  0123456     N     E     U
------------------------------------------------------------------------------
3SNA               7  PPPPPPP    47   183   122
BIPD               7  PPPPPPP     7    16    13
BORG               7  PPPPPPP     3     9    13
BRUG               7  PPPPPPP     2     8    18
CRAR               7  PPPPPPP    11    10    11
EKAT               1       P      -     -     -
GRAB               7  PPPPPPP     2     5     8
HERP               3  PP P       20    48    32
IRKZ               6  P PPPPP     -     -     -   FIXED
KHAB               7  PPPPPPP    16    13    22
KR0G               5  PP PPP      4     3     6
LDS1               6  PPP PPP     1     6    22
LRBA               7  PPPPPPP     3     6     8
MDOA               7  PPPPPPP    44    44    43
MDVZ               5  P  PPPP     3     4     6
METZ               7  PPPPPPP     3     3     7
NPLC               5   PPPPP     45    50    72
OS0G               5  PP  PPP     -     -     -   FIXED
REUN               6  PPP PPP    27    24    16
REYZ               6   PPPPPP     3     2    13
STRR               5    PPPPP     9    20    22
SUNM               6  PPPPP P     2     6     4
SVT3               7  PPPPPPP    38    43    37
THU2               7  PPPPPPP     7     8    12
TSKA               7  PPPPPPP    20    12    17
VSLD               7  PPPPPPP     4    12    13
YAKT               7  PPPPPPP    10    12    24
YARR               7  PPPPPPP     -     -     -   FIXED
ZIMZ               7  PPPPPPP     -     -     -   FIXED
------------------------------------------------------------------------------

                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 3 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
MID-DAY OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
017           358165             8477            .0018                        
018           335950             8098            .0018                        
019           323812             7951            .0018                        
020           343769             8171            .0018                        
021           362489             8544            .0018                        
022           375702             8478            .0017                        
023           338138             7791            .0016                        
------------------------------------------------------------------------------

                                                                              
------------------------------------------------------------------------------
TRANSFORMATION PARAMETERS BETWEEN ITRF AND PZ90:                              
------------------------------------------------------------------------------
USAGE:                                                                        
                                                                              
         | X |      | X |   | DX |   | SCALE    RZ   -RY |   | X |            
         | Y |  =   | Y | + | DY | + |   -RZ SCALE    RX | * | Y |            
         | Z |      | Z |   | DZ |   |    RY   -RX SCALE |   | Z |            
          ITRF       PZ90                                     PZ90            
                                                                              
------------------------------------------------------------------------------
                                          RMS = RMS of transformed coordinates
          DX     DY     DZ      RX      RY      RZ    SCALE   RMS
DAY       [m]    [m]    [m]   [mas]   [mas]   [mas]   [10E6]  [m]             
------------------------------------------------------------------------------
017     -.018   .032  -.042   43.18  -12.13 -322.05    .0086  4.04
018      .158  -.181   .422   33.33   -2.08 -331.07    .0026  4.50
019     -.265   .377   .082   41.74  -18.27 -334.18    .0083  5.87
020     -.069  -.229   .440   45.61   -7.59 -359.79    .0039  4.67
021      .339   .028   .307   35.01  -11.28 -356.60    .0093  4.11
022      .221   .105   .105   35.35   -8.27 -337.29    .0049  3.92
023      .145   .092  -.081   38.31  -10.74 -315.05    .0085  4.11
------------------------------------------------------------------------------