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[IGLOSMAIL-212] Wk 1088 BKG IGEX Analysis Report



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IGLOS Electronic Mail      02 Mar 02:42:18 PST 2001   Message Number 212
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Author: Heinz Habrich                                                         
                                                                              
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BKG IGEX ANALYSIS REPORT                  GPS WEEK 1088 (DAYS 317 - 323, 2000)
******************************************************************************
                                                                              
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                              
                                                                              
Product access:  anonymous ftp to igs.ifag.de (141.74.240.26)                 
                 subdirectory IGEX/products/wwww                              
                                                                              
------------------------------------------------------------------------------
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:                                                      
     101E107E108E111 113 115 117 122 
------------------------------------------------------------------------------
 317   5   5  15  --  --  13   5  11
 318   6   4  11  --  --   9   4  12
 319   7  10  10  --  --   7   3   9
 320   8   9  10  11  19  11   4   8
 321   6   7   9   9   9  13   4  10
 322   5  10   8  14  31   5   4  47
 323   5   5  --  14  30  20   4  23
------------------------------------------------------------------------------
 ALL   6   7  11  12  24  12   4  21
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
GLONASS/GPS TIME OFFSET:                                                      
------------------------------------------------------------------------------
         OFFSET    (NS)                                                       
         RMS ERROR (NS)                                                       
DAY    :       317       318       319       320       321       322       323
STATION                                                                       
------------------------------------------------------------------------------
BORG       571.447   593.129   618.319   607.773   604.711   610.848   611.738
             0.282     0.249     0.318     0.289     0.250     0.257     0.222
BRUG       576.098   598.439   621.522   613.249   608.084   613.994   616.190
             0.303     0.282     0.256     0.272     0.255     0.282     0.272
CRAR      -549.149  -525.651  -510.528  -514.167  -520.505  -503.445  -496.289
             0.138     0.157     0.188     0.133     0.177     0.292     0.323
CSIR       581.790   605.372   615.897   623.711   613.053   624.374   626.683
             0.228     0.283     0.324     0.239     0.241     0.374     0.407
DARR                -447.342            -456.058  -461.365                    
                       0.447               0.401     0.389                    
DAVR      -413.317  -401.735  -394.013  -405.368  -408.108  -384.539  -389.018
             0.470     0.345     0.686     0.327     0.400     0.614     0.649
DLFT      -548.746                      -512.459  -517.274  -510.412  -508.700
             0.243                         0.373     0.224     0.240     0.223
GJOV                -350.313  -327.322  -337.647  -340.195  -336.777  -329.459
                       0.237     0.314     0.321     0.246     0.298     0.321
GRAB      -374.228  -350.758  -327.871  -339.129  -339.993  -332.299  -338.990
             0.313     0.371     0.351     0.386     0.365     0.389     0.297
GOPE      -381.577  -363.899  -336.621  -344.091  -351.044  -341.850  -343.228
             0.284     0.343     0.557     0.300     0.249     0.279     0.200
HERP       578.242   610.620   623.629   614.088   608.926   610.892   614.597
             0.456     0.476     0.483     0.484     0.370     0.404     0.382
KR0G      -442.887  -424.059  -395.449  -409.544  -408.357  -405.282  -400.231
             0.203     0.227     0.261     0.227     0.255     0.236     0.202
LHAZ      -410.590  -388.381  -362.783  -379.458  -376.683  -376.470          
             0.225     0.270     0.276     0.330     0.272     0.297          
LINR       583.123   614.420   632.995             613.902                    
             0.233     0.236     0.304               0.242                    
METZ      -483.619  -463.711  -435.530  -445.441  -451.587  -445.477  -440.985
             0.264     0.261     0.298     0.263     0.250     0.244     0.212
MTBG      -521.842  -501.525  -475.252  -483.581  -488.662  -481.376  -486.460
             0.245     0.257     0.312     0.265     0.253     0.270     0.212
MTKA                -347.175  -322.504  -342.349  -345.817  -339.367  -335.230
                       0.309     0.299     0.267     0.265     0.384     0.433
NPLE       575.092   595.746   620.958   609.160   606.451   610.883   615.071
             0.312     0.259     0.320     0.279     0.241     0.262     0.261
OS0G      -527.217  -507.193  -480.140  -487.863  -493.092  -487.022  -483.659
             0.228     0.236     0.283     0.231     0.227     0.237     0.203
STR2                          -413.062  -436.912                              
                                 0.380     0.263                              
SUNM      -495.040  -457.967  -436.175  -459.966  -460.724  -457.825  -442.458
             0.421     0.411     0.559     0.423     0.453     0.611     0.805
THU2      -369.063  -368.258  -319.994                      -360.956  -308.846
             0.636     0.456     1.296                         1.161     1.019
VSLD       576.663   618.096   615.277   608.296   609.634   613.172   613.873
             0.345     0.531     0.455     0.298     0.290     0.366     0.277
WROC      -378.874  -358.638  -334.435  -346.893  -346.784  -338.295  -341.552
             0.329     0.370     0.353     0.336     0.339     0.412     0.354
WTZZ      -364.722  -348.691  -317.816  -332.704  -334.406  -327.573  -325.446
             0.354     0.381     0.366     0.352     0.311     0.341     0.311
YARR      -360.934  -334.009  -314.575  -329.993  -328.228  -325.144  -288.850
             0.268     0.298     0.331     0.323     0.399     0.511     0.673
ZIMZ      -389.335  -377.387  -344.447  -367.340  -362.610  -354.181  -360.358
             0.411     0.365     0.428     0.372     0.437     0.581     0.521
ZIMJ      -480.623  -458.840  -435.505  -444.090  -449.481  -439.230  -439.330
             0.239     0.267     0.294     0.250     0.225     0.254     0.223
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 1 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
DAY     OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
317            93216             2144           0.0012                        
318            98233             2247           0.0014                        
319            94222             2316           0.0012                        
320           114290             2766           0.0013                        
321           103165             2644           0.0012                        
322           100939             2758           0.0012                        
323            88011             2260           0.0012                        
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
COORDINATE COMPARISON FOR 1 DAY SOLUTIONS:                       GPS WEEK 1088
------------------------------------------------------------------------------
TOTAL NUMBER OF STATIONS:    27
------------------------------------------------------------------------------
                      WEEKDAY  RESIDUAL RMS IN MM
STATION        #DAYS  0123456     N     E     U
------------------------------------------------------------------------------
BORG               7  PPPPPPP     7     6    42
BRUG               7  PPPPPPP     7     9    22
CRAR               7  PPPPPPP    51    18    18
DARR               3   P PP       2     6    19
DAVR               7  PPPPPPP    18    46    28
DLFT               5  P  PPPP     1     1     5
GJOV               6   PPPPPP     1     2     3
GOPE               7  PPPPPPP     2     3     6
GRAB               7  PPPPPPP     1     2     5
KR0G               7  PPPPPPP     2     1     5
LHAZ               6  PPPPPP      -     -     -   FIXED
METZ               7  PPPPPPP     1     1     5
MTBG               7  PPPPPPP     3     1     4
MTKA               5   PPPPP      6    12    15
NPLE               7  PPPPPPP     5    17    58
OS0G               7  PPPPPPP     -     -     -   FIXED
REYZ               7  PPPPPPP     4     5     8
STR2               2    PP        3     7    16
SUNM               7  PPPPPPP    23    25    29
THU2               3  PP    P    47    18    96
VSLD               7  PPPPPPP     7     8    38
WROC               7  PPPPPPP     2     2     4
WTZZ               7  PPPPPPP     -     -     -   FIXED
YAR1               6  PPPP PP     -     -     -   FIXED
YARR               7  PPPPPPP     -     -     -   FIXED
ZIMJ               7  PPPPPPP     2     2    38
ZIMZ               7  PPPPPPP     -     -     -   FIXED
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
STATISTICS FOR 3 DAY SOLUTIONS:                                               
------------------------------------------------------------------------------
                                                                              
MID-DAY OBSERVATIONS       PARAMETERS          RMS (M)                        
------------------------------------------------------------------------------
317           277273             5920           0.0013                        
318           285671             6094           0.0013                        
319           306745             6673           0.0013                        
320           311677             6976           0.0013                        
321           318394             7317           0.0013                        
322           292115             6824           0.0013                        
323           280518             6450           0.0012                        
------------------------------------------------------------------------------
                                                                              
                                                                              
                                                                              
------------------------------------------------------------------------------
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
EXCLUDED SAT. FOR DAY 320: 122 
EXCLUDED SAT. FOR DAY 321: 122 
EXCLUDED SAT. FOR DAY 322: 122 
EXCLUDED SAT. FOR DAY 323: 122 
          DX     DY     DZ      RX      RY      RZ    SCALE   RMS
DAY       [m]    [m]    [m]   [mas]   [mas]   [mas]   [10E6]  [m]             
------------------------------------------------------------------------------
317    -0.313 -0.087  0.278    3.12    5.55 -345.68   0.0126  7.31
318    -0.366 -0.162  0.610    6.01    4.66 -323.80   0.0153  7.53
319     0.226 -0.989  0.018  -18.74   16.49 -311.20   0.0207  6.29
320     0.419  0.408  0.647  -20.85   12.21 -337.25   0.0103  5.02
321     0.429 -0.118  0.504   -9.46    6.07 -345.80   0.0107  5.04
322    -0.432  0.052 -0.428   -5.63    2.34 -341.21   0.0166  5.74
323    -0.538  0.383 -0.715   -5.75   -7.34 -345.09   0.0156  5.61
------------------------------------------------------------------------------