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[IGLOSMAIL-390] Wk 1121 BKG IGEX Analysis Report



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IGLOS Electronic Mail      28 Aug 06:30:37 PDT 2001   Message Number 390
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Author: Heinz Habrich, Peter Neumaier                                         
                                                                              
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BKG IGEX ANALYSIS REPORT                  GPS WEEK 1121 (DAYS 182 - 188, 2001)
******************************************************************************
                                                                              
Submitted by:    Bundesamt fuer Kartographie und Geodaesie (BKG)              
                 Geodetic Department, G1                                      
                 Richard-Strauss-Allee 11, D-60598 Frankfurt Main, Germany    
                         Phone : +49-69-63331                                 
                         Fax   : +49-69-6333425                               
                         E-Mail: habrich @ ifag.de, neumaier @ ifag.de            
                                                                              
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 the ionosphere free linear combination.                      
                                                                              
    IGS orbits and Earth rotation parameters are fixed.                       
                                                                              
    Six initial conditions and five (nine for GPS weeks 0980-1082)            
    radiation pressure parameters per GLONASS satellite are determined.       
                                                                              
    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-97:      
    GODZ IRKZ LHAZ OS0G YARR ZIMZ WTZZ.                                       
                                                                              
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:                                                      
     101 107 108 113 117 118 124 
------------------------------------------------------------------------------
 182   5   9   9   6   7  --   6
 183   4   3   5   7   6  --   3
 184   5   8   5   8   4  --   4
 185   4   9  10   7   9  --   4
 186   9   9   9  --   6  11   5
 187   6   8   6  --   8  20   3
 188   6   9   9  --   6  16   6
------------------------------------------------------------------------------
 ALL   6   8   8   7   7  16   5
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
GLONASS/GPS TIME OFFSET:                                                      
------------------------------------------------------------------------------
         OFFSET    (NS)                                                       
         RMS ERROR (NS)                                                       
DAY    :       182       183       184       185       186       187       188
STATION                                                                       
------------------------------------------------------------------------------
BIPD       388.919   387.229             383.966   396.416   394.538   399.737
             0.229     0.277               0.342     0.357     0.358     0.334
BORG       382.104   384.237   370.328   375.761   392.327   390.269   394.499
             0.178     0.243     0.270     0.305     0.313     0.304     0.590
CSIR       397.520   388.606   383.779   390.457   400.903   395.924   405.081
             0.173     0.213     0.271     0.311     0.246     0.257     0.279
DARR      -669.093  -673.233  -649.963  -679.500  -670.842                    
             0.168     0.215     0.518     0.264     0.250                    
DAVR      -628.293  -630.356  -626.238  -632.115  -632.126  -631.791  -628.752
             0.296     0.328     0.447     0.343     0.336     0.435     0.421
DLFT      -740.308  -742.229  -755.496  -749.043  -738.140  -736.216  -733.407
             0.192     0.258     0.300     0.315     0.333     0.334     0.354
DWH1                -674.448            -689.975  -669.381  -659.384  -656.392
                       0.281               0.335     0.323     0.342     0.425
GJOV      -571.213  -564.974  -586.786  -584.055  -576.992  -582.750          
             0.172     0.354     0.297     0.313     0.333     0.477          
GRAB      -562.455  -564.274  -576.643  -565.345            -547.444  -552.460
             0.278     0.337     0.360     0.416               0.502     0.433
GODZ      -563.123  -561.709  -568.821  -572.719  -585.573  -557.882  -563.883
             0.243     0.264     0.343     0.370     0.432     0.317     0.353
GOPE      -572.129  -573.131  -584.919  -575.343                      -572.193
             0.181     0.250     0.287     0.314                         1.193
HERP      -576.521  -564.816  -575.979  -568.534  -562.826  -560.822  -559.678
             0.380     0.383     0.384     0.440     0.406     0.424     0.407
KR0G      -623.259  -620.646  -630.084  -629.035  -624.934  -625.088  -612.266
             0.183     0.285     0.303     0.336     0.338     0.324     0.336
LINR       392.384   392.978   408.890   380.111   399.146   383.228   403.506
             0.220     0.236     0.521     0.307     0.263     0.361     0.453
METZ      -677.453  -676.454  -688.034  -684.016  -668.696  -667.847  -661.809
             0.214     0.262     0.307     0.332     0.367     0.361     0.402
MR6G      -579.030  -574.823  -585.930  -581.750  -567.893  -567.890  -561.113
             0.208     0.242     0.294     0.310     0.363     0.351     0.390
MTBG      -684.438  -685.351  -698.552  -684.726  -681.035  -682.361  -684.962
             0.178     0.248     0.287     0.268     0.306     0.291     0.330
MTKA      -565.514  -564.680  -550.720  -569.806  -565.021  -573.573  -560.187
             0.199     0.249     0.574     0.367     0.315     0.393     0.336
OS0G      -716.988  -714.180  -726.699  -717.563  -711.387  -710.787  -705.680
             0.192     0.280     0.327     0.323     0.363     0.330     0.380
REYZ      -546.650  -546.063  -555.122  -555.424  -555.262  -551.226  -536.058
             0.346     0.344     0.408     0.434     0.426     0.404     0.600
SP0G      -735.513  -733.623  -746.539  -742.953  -725.385  -725.718  -720.020
             0.154     0.232     0.271     0.299     0.334     0.313     0.357
STR2      -667.227  -671.806  -641.271  -674.882  -671.741                    
             0.234     0.282     0.511     0.309     0.280                    
SUNM                                              -670.021  -685.006  -663.192
                                                     0.371     0.469     0.587
THU2      -577.190  -574.208  -583.552  -584.225  -579.845            -573.563
             0.155     0.212     0.276     0.285     0.293               0.298
TIGZ      -674.007  -674.019  -687.655  -679.231  -666.289  -668.661  -662.375
             0.211     0.272     0.320     0.330     0.363     0.361     0.382
VSLD       382.035   383.507   371.766   382.838   390.190             395.125
             0.160     0.200     0.216     0.300     0.262               0.252
WROC      -564.402  -565.196            -567.666                              
             0.317     0.345               0.391                              
WTZZ      -555.749  -554.000  -567.391  -561.678  -562.902  -562.821  -560.016
             0.403     0.425     0.441     0.435     0.470     0.447     0.420
YARR      -574.932  -582.373  -561.735  -585.470  -577.969  -592.086  -581.802
             0.210     0.240     0.475     0.296     0.324     0.422     0.350
ZIMJ      -675.624  -676.718  -689.146            -659.857  -660.362  -667.850
             0.178     0.238     0.294               0.505     0.405     0.341
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 1 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
DAY     OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
182           127984             2782           0.0014                        
183           131928             3062           0.0013                        
184           127285             2592           0.0013                        
185           103250             2879           0.0013                        
186           108500             2637           0.0014                        
187            93491             2375           0.0014                        
188           102139             2599           0.0015                        
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
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COORDINATE COMPARISON FOR 1 DAY SOLUTIONS:                       GPS WEEK 1121
------------------------------------------------------------------------------
TOTAL NUMBER OF STATIONS:    29
------------------------------------------------------------------------------
                      WEEKDAY  RESIDUAL RMS IN MM
STATION        #DAYS  0123456     N     E     U
------------------------------------------------------------------------------
BIPD               6  PP PPPP    15    42    30
BORG               7  PPPPPPP    29    24    50
DARR               5  PPPPP       3     6     3
DAVR               7  PPPPPPP    11     6    15
DLFT               7  PPPPPPP     2     2     1
DWH1               5   P PPPP    13    26    31
GJOV               6  PPPPPP      2     1     5
GODZ               7  PPPPPPP     -     -     -   FIXED
GOPE               5  PPPP  P     2     6     9
GRAB               6  PPPP PP     1     2     5
HERP               7  PPPPPPP     1     2    10
KR0G               7  PPPPPPP     4     2    10
LHAZ               7  PPPPPPP     -     -     -   FIXED
METZ               7  PPPPPPP     3     2     7
MR6G               7  PPPPPPP     3     2     5
MTBG               7  PPPPPPP     2     3     6
MTKA               7  PPPPPPP     5    15    19
OS0G               7  PPPPPPP     -     -     -   FIXED
REYZ               7  PPPPPPP     4     2     6
SP0G               7  PPPPPPP     2     3     3
STR2               5  PPPPP       2     6     7
SUNM               3      PPP     3    17    17
THU2               6  PPPPP P     7     3    14
TIGZ               7  PPPPPPP     1     1     3
VSLD               7  PPPPPPP     7    13    36
WROC               3  PP P        1     1     2
WTZZ               7  PPPPPPP     -     -     -   FIXED
YARR               7  PPPPPPP     -     -     -   FIXED
ZIMJ               6  PPP PPP     2     4     2
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 3 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
MID-DAY OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
182           385834             8135           0.0014                        
183           387197             7767           0.0014                        
184           362463             7808           0.0013                        
185           339035             7449           0.0014                        
186           305241             7176           0.0014                        
187           304130             6908           0.0014                        
188           324020             7258           0.0014                        
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
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]             
------------------------------------------------------------------------------
182    -0.352  0.527 -0.533   40.21   -5.75 -364.06   0.0151  4.60
183    -0.038  0.074 -0.149   45.24    1.49 -357.70   0.0220  4.31
184    -0.086  0.343  0.406   46.23    0.63 -339.00   0.0219  4.07
185     0.261  0.021  1.066   43.54    1.39 -350.58   0.0213  3.15
186    -0.272  0.127  1.455   46.40    1.23 -347.43   0.0162  3.64
187    -0.331 -0.725  0.449   55.62    1.85 -361.91   0.0201  3.04
188    -0.567 -0.521  1.105   45.62   -3.06 -358.08   0.0186  3.52
------------------------------------------------------------------------------