[IGSREPORT-17876] Wk 1550 IGLOS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Oct 8 05:01:37 PDT 2009


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IGS Electronic Report   08 Oct 05:01:39 PDT 2009      Message Number 17876
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Author:   AC Coordinator / NOAA NGS                                               
sum-file Version 2.0
                                                                               
IGLOS Orbit Combination - Week 1550   (Sep 20, 2009 - Sep 26, 2009) 
                                                                               
Contact: J. Ray       (jim.ray at noaa.gov),                  
         J. Griffiths (jake.griffiths at noaa.gov)                            
                                                                               
                                                                               
COMBINATION STRATEGY:                                                            
---------------------                                                            
                                                                               
Ephemeris are combined as weighted averages computed over all centres.          
Each centre and satellite is given a position weight computed from the centers  
absolute deviation to the unweighted average orbit after removing small         
differences in the reference frames. These weights were applied in a            
second iteration to estimate Helmert transformation parameters for each         
center. Finally the transformation parameters with respect to the combined      
solution and the RMS of the fit are reported in Tables 2.1550.
For long arc computations the Earth Orientation Parameters (EOPs) are fixed to
the values of the final IGS (GPS) combination.                                                    
                                                                               
                                                                               
SOFTWARE:                                                                       
---------                                                                       
                                                                               
The weighted average software used was originally developed by T. Springer
and G. Beutler in 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

  Beutler G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
  Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

  Kouba J., Mireault Y. and F. Lahaye, 1995, 1994 IGS Orbit/Clock Combination
  and Evaluation, Appendix I of the Analysis Coordinator Report, International
  GPS Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

  Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
  pp. 45-76.

  Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
  pp. 55-100.
                                                                               
  Weber R., 2000, IGS Technical Report 1999                                    
                                                                               
                                                                               
PRODUCTS GENERATED:                                                             
-------------------                                                             
                                                                               
The combined IGL-ephemerides are written to daily files in the SP3-format.     
The satellite accuracy codes in the header are based on the weighted rms.       
for each satellite. Note, that the result files contain all satellites          
that were analysed by at least one center. We refer to the 'REMARKS' section    
below, in case a satellite or center was excluded from the combination.         
                                                                               
The following naming convention is used for the result files:                   
                                                                               
 igl1550[0-6].sp3  IGLOS-PP Glonass ephemerides files for days 0-6
                   of GPS Week 1550 in the SP3 format.
 igl15507.sum      Combination Report for GPS Week 1550.


    
    
REMARKS concerning the IGL Orbit Combination:                                  
---------------------------------------------

 1. Broadcast (brd) orbits and clocks are included in the combination for
    statistics only.

 2. Having only a few satellites the mcc orbits are included in the combination 
    for statistics only.

 3. Starting on 01-May-2005 (GPS Week 1321; MJD 53491)[IGSMAIL-5151] 
    BKG, ESA, and CODE will start to refer their GLONASS orbit products 
    to the following satellite antenna offset (SAO) values:
    
      X/Y/Z =  0.000/0.000/0.000 meter for GLONASS and
      X/Y/Z = -0.545/0.000/0.000 meter for GLONASS-M SVs.
    

 4. The satellite clock values in the combined orbit files are taken from the
    broadcast files. The following gps/glonass time offsets derived from the
    bkg summary files were added to the broadcast clocks.
    
               Day | applied clock offset
               ----+---------------------
                0  |    248.6 ns
                1  |    243.9 ns
                2  |    241.7 ns
                3  |    241.8 ns
                4  |    249.5 ns
                5  |    154.5 ns
                6  |    152.3 ns

 5. The following orbit solutions were excluded from the combination
    because they were biasing the weighted average (generally indicated
    by long arc RMS).
    
               Day | Centre | PRN list
               ----+--------+---------------
                5  |  ESX   | R03

    
         
ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    
      
Table 1 summarizes all statistics for the week. It contains means and standard 
        deviations over the week of satellite ephemeris  and  clock correction
        transformation parameters for each centre (Tables 1.1550, 1a.1550).
        
Table 2 contains the complete  ephemeris  and  clock correction transformation
        parameters (includes both the apriori and a posteriori values) for each
        centre and each day (Tables 2.1550.0-6)                                                                                
    
Table 3 contains two types of daily  RMS  for each satellite and centre, along
        with the computed  satellite position sigmas  for the  combined orbits 
        (tables 3.1550.0-6). 
        The first type of satellite RMS is based on orbit combination and  the
        second RMS type is a result of the 7-day arc evaluation of each centre
        ephemerides.
                                                                               
   
      
      
Table 1: Week 1550 summary.                      (Sep 20, 2009 - Sep 26, 2009)

Table 1.1550.a     GPS week : 1550   MJD: 55094.0-55100.0

         Mean and standard deviations of transformation parameters to the 
         combined IGL orbit.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         STA  - Mean number of stations in the daily solutions.
   
CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0     0     0   -38    -2  -125  -.15   32   22 |       0     627   3646   4081
        |    0     2     2    42    19   105   .03           |       0    2552
cod  225|    0     0     1    38   -18    93  -.10   18   14 |     ---     ---    ---    ---
        |    1     0     1    22    19    51   .03           |     ---     ---
esx  137|    1     1     5   -17    44    41   .45   41   25 |  114707    -927   7001  13041
        |    1     1     3    49    38    77   .04           |   48542    2807
iac  n/a|   -1     1    -6    -4   -10   -56  -.15   24   24 |  125557   -3117  45942 153904
        |    2     2     3    38    28    63   .04           |  276506    6369
mcc  n/a|    0    -1    50     4   -51   463  -.02  157  157 |     ---     ---    ---    ---
        |    8     8    17   101   117   494   .48           |     ---     ---


Table 1.1550.b     GPS week : 1550   MJD: 55094.0-55100.0   

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: mm.

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
 R02  |   10   14   13   13   12   11    9 |
 R03  |   13   13    7   12   12   18   25 |
 R07  |   10   10   10   11   11   10    9 |
 R08  |   10   10   11    9   15   10   10 |
 R10  |   14   14    9   11   15   10   13 |
 R11  |   13   13   14   14   16   13   11 |
 R13  |    7   11   13   11   11   10   11 |
 R14  |   11   11   10   12   13   10   10 |
 R15  |   10   10   12   10   10   14   11 |
 R17  |   13   12   12    9   11   12   11 |
 R18  |   16   10    9   14   10   10   11 |
 R19  |   13   12   10    8    7   13    9 |
 R20  |   15   11    7    9   11   10   17 |
 R21  |   20    9    9    8    9    9   11 |
 R23  |   17   16   17   16   12   18   15 |
 R24  |   23   38   48   33   19   46   44 |


Table 1.1550.c     GPS week : 1550   MJD: 55094.0-55100.0   

         Daily transformation of broadcast orbits (brd) to the combined IGL orbit.
         Mean and standard deviations of the transformation parameters for the
         whole gpsweek.

CEN WEEK DAY |   DX    DY    DZ     RX      RY      RZ   SCL   RMS   WRMS |    TOFT   TDRFT
             |  [mm]  [mm]  [mm]  [uas]   [uas]   [uas] [ppb]  [mm]  [mm] |    [ps]  [ps/d]
-------------+------------------------------------------------------------+----------------
brd 1550 0   |   48   -62   280     133     626   -2796  89.5  3841  3841 |  248639       0
brd 1550 1   |14420 -7649  -154  -27450  -42950   91220  94.9 >>>>> >>>>> |  243918       0
brd 1550 2   |  -84    12   156     -72    3555  -11670  91.1  4725  4725 |  241711       0
brd 1550 3   |  130  -105   117    1938     544  -16219  87.7  4937  4937 |  241819       0
brd 1550 4   |  198    -3   378     236     882  -16020  89.8  4549  4549 |  249489       0
brd 1550 5   |   39    -4   269   -1293     823  -13270  91.0  3801  3801 |  154462       0
brd 1550 6   | -389   602   523   -9335   -5373   -7448  93.9 12650 12650 |  152290       0
-------------+------------------------------------------------------------+----------------
brd 1550 mean| 2052 -1029   224   -5120   -5984    3399  91.1 >>>>> >>>>> |  218904       0
brd 1550 sdev| 5457  2928   215   10508   16521   39020   2.5 >>>>> >>>>> |   44871       0



Table 2: Daily transformation of each centre to the combined IGL orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1550.0  GPS week: 1550   Day: 0   MJD: 55094                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0    -1     4   -54   -13  -158  -.13   28   23 |       0    -388   2919   3268
cod  225|    0     0     0    60   -43    68  -.11   16   15 |     ---     ---    ---    ---
esx  137|    3     0     0   -13    95   106   .43   29   24 |  150464   -3719   5262  12127
iac  n/a|   -4     1    -6   -23     5   -37  -.14   25   25 |  248030   -2845   5270  11246
mcc  n/a|    0   -16    56    76    59  -169   .31  263  263 |     ---     ---    ---    ---

Table 2.1550.1  GPS week: 1550   Day: 1   MJD: 55095                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|   -1     0     1   -84    24  -304  -.14   28   16 |       0    -979   3580   3919
cod  225|   -1     0     2    59     0   185  -.12   21   16 |     ---     ---    ---    ---
esx  137|    4     2     7   -59   -10   129   .53   32   26 |  145598     -89   6548   9322
iac  n/a|    0     0    -9    56   -23    22  -.14   22   22 |  243681   -1580   6566   8990
mcc  n/a|   16     4    72    -6    54  1072   .30  167  167 |     ---     ---    ---    ---

Table 2.1550.2  GPS week: 1550   Day: 2   MJD: 55096                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0     0     1   -93   -15  -201  -.20   42   25 |       0    -198   2836   3272
cod  225|    0    -1     1    54   -23    89  -.11   19   13 |     ---     ---    ---    ---
esx  137|   -1     2     8   -36    83    -8   .43   30   19 |  135601    2318   5298  11018
iac  n/a|    0     0    -8     3   -35    12  -.17   25   25 |  241275     586   5306  10820
mcc  n/a|    2    10    55   162   -80  1174  -.97  187  187 |     ---     ---    ---    ---

Table 2.1550.3  GPS week: 1550   Day: 3   MJD: 55097                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|   -1    -3    -4   -23    -3     1  -.12   32   23 |       0     391   3743   4099
cod  225|    2     0     0    23     0   110  -.13   15   12 |     ---     ---    ---    ---
esx  137|    1     4     2    55     4   -99   .47   28   22 |  138644   -2282   5709   9943
iac  n/a|   -3     1     0   -21    10  -108  -.20   22   22 |  244329   -4047   5754   9938
mcc  n/a|   -5     0    25    54    15   220   .01  119  119 |     ---     ---    ---    ---

Table 2.1550.4  GPS week: 1550   Day: 4   MJD: 55098                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0    -1     0   -12    22   -55  -.13   24   23 |       0     313   3318   3634
cod  225|   -2     0     1    37   -42    80  -.12   15   12 |     ---     ---    ---    ---
esx  137|    0     0     7   -31    42    49   .40   24   23 |  144566   -2039   8144  19259
iac  n/a|    0    -2    -6   -27    35  -112  -.07   23   23 |  248313   -2989   8116  19080
mcc  n/a|   -1     1    27  -139   -46   439   .45  110  110 |     ---     ---    ---    ---

Table 2.1550.5  GPS week: 1550   Day: 5   MJD: 55099                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0     2    -2    28    -9   -43  -.16   30   19 |       0   -1026   3367   3676
cod  225|    0     0     3     0     1   108  -.10   22   14 |     ---     ---    ---    ---
esx  137|    0     0     5   -75    41    33   .42  113   38 |   41141    3161  13221  18323
iac  n/a|    0     2    -8    33   -23  -137  -.12   28   28 |  149525    4902   9264  17261
mcc  n/a|   -6    -1    49   -48   -77   402  -.19  120  120 |     ---     ---    ---    ---

Table 2.1550.6  GPS week: 1550   Day: 6   MJD: 55100                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
bkg  106|    0     3     1   -27   -25  -112  -.20   40   23 |       0    6277   5762   6705
cod  225|    0    -1     1    33   -22    14  -.05   19   12 |     ---     ---    ---    ---
esx  137|    1     1     7    42    55    80   .44   28   21 |   46938   -3839   4827  11299
iac  n/a|    1     5    -9   -56   -43   -31  -.19   25   25 | -496248  -15847 281323 999999
mcc  n/a|   -9    -7    65   -70  -282   102  -.02  131  131 |     ---     ---    ---    ---

       
       
Table 3: Daily fit for each satellite and each centre resulting from weighted
         average combination and from long arc orbit dynamics (7-day). The
         first IGL column gives resulting satellite accuracy measures found in
         SP3 header. The last IGL column gives the RMS fit of the IGL orbit
         when processed through the 7-day arc evaluation.

         "E"    stands for eclipsing satellites (earth).
         "M"    stands for eclipsing satellites (moon).
         "X"    stands for excluded from the statistics but included in IGL orbit.
         "T"    stands for Total long arc orbit RMS for all satellites.
         "NE"   stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI" stands for median of the centre's satellite RMS.
         "MD"
         Units: mm.

Table 3.1550.0  GPS week: 1550   Day: 0   MJD: 55094                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 1269   10   14   12   27  ---    9 |    24   30   29   31  ---    23
 R03  |13879   28   16   23   24  ---   13 |    31   32   48   26  ---    28
 R07  | 3918   22   17   18   12  ---   10 |    27   40   39   32  ---    34
 R08  |  619   18   11   27   11  115    9 |    25   33   51   34   29    33
 R10  | 2159   33   16   26   26  ---   14 |    42   42   39   46  ---    38
 R11  | 1162   31   13   28   22  127   13 |    35   46   56   39   32    42
 R13  | 1061    8   11   13   15  ---    7 |    26   26   31   24  ---    24
 R14  | 1235   16   13   27   19  ---   11 |    32   23   41   29  ---    27
 R15  | 1282   16   12   14   24   68    9 |    27   32   33   37   29    29
 R17  |  931   29   20   19   25  ---   13 |    50   61   52   57  ---    53
 R18  |  887   16   10   47   27  ---   15 |    25   20   46   29  ---    20
 R19  |  813   20   13   26   29  ---   12 |    41   33   29   58  ---    36
 R20  | 2635   24   21   30   27  ---   14 |    36   42   74   51  ---    46
 R21  | 1184   41   27   35   33  ---   19 |    49   37   29   37  ---    30
 R23  | 1832   43   18   27   32  493   17 |   106  110  122  145  177   118
 R24  | 1325   53   20   52   36  ---   23 |   510  492  492  508  ---   499
------+------------------------------------+--------------------------------
 RMS  | 3841   28   16   29   25  263      |T   67   68   75   73   66    67
 WRMS | 3841   23   15   24   25  263      |NE  67   68   75   73   66    67
 MEDI | 1235   22   14   26   25  115      |MD  32   33   41   37   29    33

Table 3.1550.1  GPS week: 1550   Day: 1   MJD: 55095                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  |>>>>>   10   28   24   26  ---   13 |    19   24   27   32  ---    15
 R03  |>>>>>   14   23   35   16  ---   13 |    34   32   58   18  ---    22
 R07  |>>>>>   21   16   11   17  ---   10 |    25   36   43   34  ---    30
 R08  |>>>>>   18   11   19   17   83    9 |    21   28   27   27   26    21
 R10  | ----   22   15   30   29  ---   14 |    30   38   52   31  ---    34
 R11  |>>>>>   23   16   29   22  116   13 |    27   35   43   30   35    28
 R13  |>>>>>   17   13   30   15  ---   11 |    24   28   33   21  ---    19
 R14  |>>>>>   15   13   29   19  ---   11 |    31   29   47   34  ---    31
 R15  |>>>>>    9   20   14   22  109   10 |    34   36   32   31   22    30
 R17  |>>>>>   15   20   31   12  ---   11 |    45   48   56   46  ---    44
 R18  |>>>>>    7   12   26   18  ---    9 |    28   22   36   21  ---    19
 R19  |>>>>>   17   16   33   12  ---   11 |    27   31   41   30  ---    24
 R20  |>>>>>    9   19   22   20  ---   10 |    26   27   46   26  ---    25
 R21  |>>>>>   12   15   19   17  ---    9 |    38   26   20   24  ---    20
 R23  |>>>>>   32   18   22   33  282   15 |    60   70   85  101  166    76
 R24  |>>>>>   89   51   77   38  ---   38 |   510  531  540  505  ---   514
------+------------------------------------+--------------------------------
 RMS  |>>>>>   28   21   32   22  167      |T   61   65   74   63   62    59
 WRMS |>>>>>   16   16   26   22  167      |NE  61   65   74   63   62    59
 MEDI |>>>>>   15   16   26   18  109      |MD  28   31   43   30   26    25

Table 3.1550.2  GPS week: 1550   Day: 2   MJD: 55096                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 1712   40   18   14   18  ---   13 |    21   35   43   34  ---    30
 R03  |10028   17   11   12   11  ---    7 |    31   33   40   16  ---    25
 R07  | 3069   23   17   18   13  ---   10 |    32   42   52   44  ---    40
 R08  |  977   32    9   19   13   77   10 |    19   30   40   30   31    27
 R10  | 2000   27    9   14   14  ---    9 |    30   26   39   30  ---    28
 R11  |  749   29   17   28   24   92   14 |    35   45   52   34   54    38
 R13  | 2371   31   14   28   16  ---   12 |    23   34   55   26  ---    31
 R14  | 2583   24    9   20   18  ---   10 |    26   31   41   23  ---    26
 R15  | 2645   29   18   17   19  124   11 |    25   33   30   30   33    24
 R17  | 1959   23   11   27   18  ---   11 |    42   46   63   59  ---    50
 R18  | 1919   13   15   12   19  ---    9 |    37   35   30   30  ---    29
 R19  | 2410   19   16   15   16  ---    9 |    41   35   40   44  ---    36
 R20  | 2070   11   12    8   16  ---    7 |    21   23   26   27  ---    20
 R21  |  581   18   10   18   15  ---    8 |    23   18   33   27  ---    20
 R23  |14087   32   23   32   34  331   17 |    65   64   88  106  214    80
 R24  | 1739  138   53   90   68  ---   48 |   431  531  575  509  ---   513
------+------------------------------------+--------------------------------
 RMS  | 4724   42   19   30   25  187      |T   56   66   77   66   83    63
 WRMS | 4724   25   13   19   25  187      |NE  56   66   77   66   83    63
 MEDI | 2000   24   14   18   16   92      |MD  30   34   40   30   33    29

Table 3.1550.3  GPS week: 1550   Day: 3   MJD: 55097                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 2991   29   23   23    9  ---   12 |    17   38   31   34  ---    26
 R03  |15123   32   12   19   23  ---   12 |    20   43   67   48  ---    37
 R07  | 3697   16   20   17   17  ---   10 |    40   63   49   47  ---    51
 R08  | 1126   10   13   23   17   63    9 |    20   27   42   33   56    26
 R10  | 2367   17   12   20   23  ---   10 |    48   45   50   40  ---    43
 R11  | 1416   35   14   37   15  134   14 |    42   40   71   50   73    46
 R13  | 2067   34   10   13   18  ---   11 |    29   35   34   26  ---    29
 R14  | 4950   30   14   20   17  ---   11 |    34   35   35   35  ---    33
 R15  | 2891   16    8   21   22   72    9 |    33   25   30   25   42    22
 R17  | 1676   18    8   13   23  ---    9 |    44   55   56   57  ---    52
 R18  | 8362   22   16   36   21  ---   13 |    36   36   33   34  ---    27
 R19  |  766   11   10   17   17  ---    8 |    23   22   34   34  ---    25
 R20  | 2839   19    6   22   18  ---    9 |    27   28   47   25  ---    28
 R21  |  729    9    9   18   19  ---    8 |    32   33   33   32  ---    30
 R23  | 1460   31   17   31   35  172   16 |    67   76  101  106  224    85
 R24  | 2939   93   25   71   43  ---   32 |   426  490  526  491  ---   485
------+------------------------------------+--------------------------------
 RMS  | 4937   32   15   28   22  119      |T   58   68   77   69   98    65
 WRMS | 4937   23   12   22   22  119      |NE  58   68   77   69   98    65
 MEDI | 2367   19   12   20   18   72      |MD  33   36   42   34   56    30

Table 3.1550.4  GPS week: 1550   Day: 4   MJD: 55098                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 3707   26   13   22   21  ---   11 |    13   20   37   30  ---    18
 R03  |14247   29   14   17   25  ---   12 |    21   36   63   44  ---    33
 R07  | 6061   26    9   21   22  ---   11 |    22   42   56   48  ---    40
 R08  |  970   19   26   24   27   86   14 |    42   34   51   51   28    36
 R10  | 3791   23   24   29   26  ---   14 |    36   27   46   47  ---    32
 R11  | 2393   36   16   36   21  137   15 |    47   36   63   36   44    39
 R13  | 3105   27   10   21   21  ---   11 |    23   30   38   24  ---    25
 R14  | 3824   32   10   25   24  ---   13 |    19   26   35   20  ---    20
 R15  | 4055   16    9   20   26   94   10 |    20   22   30   39   33    23
 R17  | 1041   18    9   21   27  ---   10 |    32   38   50   56  ---    41
 R18  | 1973   19   10   20   19  ---    9 |    21   33   46   35  ---    31
 R19  | 1038   11    9   14   16  ---    7 |    32   29   26   33  ---    27
 R20  | 1875   20   17   18   17  ---   10 |    33   31   50   37  ---    34
 R21  | 1257   10   11   25   15  ---    9 |    15   21   42   23  ---    21
 R23  | 1025   15   13   31   25  117   12 |    66   59   70   74  140    64
 R24  | 1913   38   23   36   35  ---   18 |   482  460  440  466  ---   460
------+------------------------------------+--------------------------------
 RMS  | 4549   24   15   24   23  110      |T   57   59   71   66   61    59
 WRMS | 4549   23   12   23   23  110      |NE  57   59   71   66   61    59
 MEDI | 1973   20   11   21   22   94      |MD  23   31   46   37   33    32

Table 3.1550.5  GPS week: 1550   Day: 5   MJD: 55099                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 2856   15   13   19   28  ---   11 |    17   28   26   44  ---    24
 R03  | 8538   30   23  437   20  ---   17 |    19   31  232   20  ---    18
 R07  | 9630   15   16   20   17  ---    9 |    19   25   33   22  ---    21
 R08  |  778   12   20   21   14   87   10 |    26   27   42   21   19    24
 R10  | 3805   19   12   21   17  ---   10 |    31   28   30   37  ---    28
 R11  | 1856   20   15   35   18  156   13 |    34   34   63   38   22    36
 R13  | 4143   16    9   27   15  ---   10 |    30   27   37   23  ---    24
 R14  | 1623   20   15   10   18  ---    9 |    25   17   38   28  ---    25
 R15  | 2221   29   17   24   28   91   14 |    31   27   31   36   29    25
 R17  |  856   19   10   21   27  ---   11 |    40   44   36   58  ---    43
 R18  | 1677   10   16   19   19  ---    9 |    18   25   23   23  ---    17
 R19  |  798   21   14   26   28  ---   13 |    18   21   40   42  ---    25
 R20  | 1527   13   14   22   20  ---   10 |    36   25   40   27  ---    25
 R21  | 1833   18    9   16   16  ---    8 |    27   15   18   24  ---    17
 R23  | 1194   23   18   51   27  131   17 |    69   63   85   73  120    67
 R24  | 1673   96   69   81   73  ---   46 |   333  438  444  369  ---   394
------+------------------------------------+--------------------------------
 RMS  | 3801   30   22  113   28  120      |T   48   54   76   55   47    50
 WRMS | 3801   19   14   38   28  120      |NE  48   54   76   55   47    50
 MEDI | 1677   19   15   21   19   91      |MD  27   27   37   28   22    25

Table 3.1550.6  GPS week: 1550   Day: 6   MJD: 55100                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R02  | 9833   13    7   16   22  ---    8 |    39   36   32   45  ---    35
XR03  |11000   50   23  ---   37  ---   25 |    22   47  ---   52  ---    37
 R07  |17040   14   11   20   14  ---    8 |    27   41   50   47  ---    39
 R08  |17379   18   10    9   28  101   10 |    41   37   45   34   29    35
 R10  |13340   20   17   34   20  ---   13 |    41   38   41   47  ---    39
 R11  |13424   30   14   17   17  169   11 |    49   48   54   45   45    46
 R13  | 8579   18    7   24   26  ---   11 |    29   26   44   24  ---    27
 R14  | 8013   13   15   21   20  ---   10 |    27   27   38   32  ---    28
 R15  |14216   30    9   13   25   76   11 |    37   33   40   38   37    33
 R17  |10336   19   10   26   21  ---   11 |    58   55   50   66  ---    55
 R18  |12286   17   11   27   21  ---   11 |    29   27   40   37  ---    29
 R19  |13591   16   12   16   21  ---    9 |    31   34   32   40  ---    32
 R20  |14280   35   16   45   21  ---   17 |    21   19   53   30  ---    24
 R21  |13222   25   13   19   21  ---   11 |    21   20   31   35  ---    23
 R23  | 8459   31   23   28   23  154   14 |    86   82  100   99  135    88
 R24  |11004  131   55   60   57  ---   43 |   351  375  375  359  ---   363
------+------------------------------------+--------------------------------
 RMS  |12652   40   19   28   25  131      |T   56   59   68   64   61    58
 WRMS |12652   23   12   21   25  131      |NE  56   59   68   64   61    58
 MEDI |12286   19   12   21   21  101      |MD  31   36   44   40   37    35



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