[IGSREPORT-15843] Wk 1458 IGLOS Final Orbits

Gerd Gendt3 igsacc at gfz-potsdam.de
Sat Jan 12 05:49:27 PST 2008


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IGS Electronic Report   12 Jan 05:49:30 PST 2008      Message Number 15843
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Author:   AC Coordinator / GFZ Potsdam                                               
sum-file Version 2.0
                                                                               
IGLOS Orbit Combination - Week 1458   (Dec 16, 2007 - Dec 22, 2007) 
                                                                               
Contact: Gerd Gendt     (gendt at gfz-potsdam.de)                   
         Thomas Nischan ( nisn at gfz-potsdam.de)                             
                                                                               
                                                                               
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 2.1458.
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:                   
                                                                               
 igl1458[0-6].sp3  IGLOS-PP Glonass ephemerides files for days 0-6
                   of GPS Week 1458 in the SP3 format.
 igl14587.sum      Combination Report for GPS Week 1458.


    
    
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  |   1489.1 ns
                1  |   1428.3 ns
                2  |   1479.6 ns
                3  |   1419.9 ns
                4  |   1470.3 ns
                5  |   1469.8 ns
                6  |   1444.2 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
               ----+--------+---------------
                0  |  ALL   | R24
                0  |  BKG   | R14 R21
                0  |  ESX   | R19 R20 R20 R23
                0  |  IAC   | R10
                1  |  ALL   | R24
                1  |  BKG   | R14 R15 R21
                1  |  ESX   | R19 R20 R20 R23
                1  |  IAC   | R10
                2  |  ALL   | R24
                2  |  BKG   | R15 R21
                2  |  ESX   | R19 R20 R20 R23
                2  |  IAC   | R10
                3  |  ALL   | R24
                3  |  BKG   | R14 R21
                3  |  ESX   | R19 R20 R20 R23
                4  |  ALL   | R24
                4  |  BKG   | R21
                4  |  ESX   | R19 R20 R20 R23
                4  |  IAC   | R15
                5  |  ALL   | R24
                5  |  ESX   | R19 R20 R20 R23
                6  |  ALL   | R24
                6  |  ESX   | R19 R20 R20 R23

    
         
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 1.1458, 1a.1458).
        
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 2.1458.0-6)                                                                                
    
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 3.1458.0-6). 
        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 1458 summary.                      (Dec 16, 2007 - Dec 22, 2007)

Table 1.1458.a     GPS week : 1458   MJD: 54450.0-54456.0

         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   58|    0     2     0   -68    -2   -18   .03   39   34 |       0      26   2711   2874
        |    7     3     7    89    88   117   .13           |       0     100
cod  177|   -6    -3     0   -15   -97   -37  -.05   43   35 |     ---     ---    ---    ---
        |    4     8     9    47    86    97   .16           |     ---     ---
esx   50|    4     0    -3   161   123   -45  -.28  266   67 |   62415    8012   9466  20062
        |    5     8    10   145   119   151   .18           |  171646    7179
iac  n/a|    5     5    -1   -38    16   113   .26   45   45 | 1455400    1633   8442  17419
        |    4    15     5    68   131   131   .18           |   26272    4849
mcc  n/a|   15     2    -2   534  -673 -6358 -3.38  436  436 |     ---     ---    ---    ---
        |   53   165   178  1728  1026  6508  4.40           |     ---     ---


Table 1.1458.b     GPS week : 1458   MJD: 54450.0-54456.0   

         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
------+------------------------------------+------------------------------------------
 R01E |   19   20   35   26   23   24   25 |
 R04  |   27   22   25   21   21   26   25 |
 R06  |   26   26   16   21   18   23   32 |
 R07E |   13   15   17   14   14   20   31 |
 R08E |   23   25   26   24   27   24   35 |
 R10E |  101  107   63   93   44   57   55 |
 R14E |  121   48   85  105   42   19   23 |
 R15E |   93   45   80   77   42   36   37 |
 R17  |   73   46   69   36   29   71   56 |
 R19  |   17   25   23   21   21   22   28 |
 R20  |   26   17   21   21   16   26   23 |
 R21  |   29   66   44   34   41  ---  --- |
 R23  |   31   26   40   49   38   47   76 |


Table 1.1458.c     GPS week : 1458   MJD: 54450.0-54456.0   

         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 1458 0   |   49  -268   -99    3134     101  -51250 102.3  6273  6273 | 1489053       0
brd 1458 1   |   95  -118    80     397   -1521  -48910  91.3  5402  5402 | 1428268       0
brd 1458 2   |    2   -41    76    -952   -6128  -44300  98.5  7885  7885 | 1479582       0
brd 1458 3   | -746  -240    87   -2176   -7068  -31290 120.2  8264  8264 | 1419909       0
brd 1458 4   |  383  -471   195    5579   -9162  -43150 101.5  8055  8055 | 1470323       0
brd 1458 5   |  114  -152   729   -3667   -5196  -30070 102.5  8889  8889 | 1469842       0
brd 1458 6   | -446  -267   677    5742    -213  -40880  99.0  8691  8691 | 1444159       0
-------------+------------------------------------------------------------+----------------
brd 1458 mean|  -78  -222   249    1151   -4169  -41407 102.2  7637  7637 | 1457305       0
brd 1458 sdev|  384   138   322    3739    3631    8121   8.8  1301  1301 |   26599       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 2.1458.0  GPS week: 1458   Day: 0   MJD: 54450                            

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   58|   -2     3    -7  -167   -94  -249   .18   34   30 |       0      77   2529   2712
cod  177|    0     4     0   -49   -13   -17  -.07   33   25 |     ---     ---    ---    ---
esx   50|   -5   -12     2   244   134   185  -.39  222   51 |    6523   18539  11885  13507
iac  n/a|    2     0     0   -64   -97    70   .41   42   42 | 1484849    6613  10286  11959
mcc  n/a|   -7    11   108   265  -182  -228   .79  135  135 |     ---     ---    ---    ---

Table 2.1458.1  GPS week: 1458   Day: 1   MJD: 54451                            

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   58|   -7    -2    14   -89  -103    52   .09   42   43 |       0     139   2211   2258
cod  177|    0    -5    -9    16   -58   -71  -.09   29   26 |     ---     ---    ---    ---
esx   50|   11     0    -9    24   188  -132  -.04  291   48 |  -64147    8922   7141  14051
iac  n/a|    3     7    -1    17   -20   221   .15   36   36 | 1425589    3312   6168  12801
mcc  n/a|  -14   -13    56   -35    23  -436  1.35  140  140 |     ---     ---    ---    ---

Table 2.1458.2  GPS week: 1458   Day: 2   MJD: 54452                            

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   58|    4     0     0   120    36    27  -.05   36   30 |       0      18   2285   2378
cod  177|   -9    -9   -13   -74   -98  -186   .11   47   44 |     ---     ---    ---    ---
esx   50|    8    12     4   -98   140   -18  -.35  261   61 |  443801    7416   9867  25888
iac  n/a|    2    -2     3    13   -22    69   .42   42   42 | 1482240    2746   8300  21790
mcc  n/a|   17     6    13   115   250  -370   .79  119  119 |     ---     ---    ---    ---

Table 2.1458.3  GPS week: 1458   Day: 3   MJD: 54453                            

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   58|  -12     2     0  -104   -78    54   .18   40   33 |       0      -7   3536   3846
cod  177|   -7     4     0   -52  -217    24  -.36   56   48 |     ---     ---    ---    ---
esx   50|    3    -1    -7   218   204    18  -.49  291   80 |  -25397    5794  11717  23003
iac  n/a|    8    -5     2    -2    19    -5   .12   27   27 | 1422381   -3400  11290  21251
mcc  n/a|   61    68    58  -328   232  ---- -9.54  931  931 |     ---     ---    ---    ---

Table 2.1458.4  GPS week: 1458   Day: 4   MJD: 54454                            

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   58|    1     0     1   -87    33  -108   .07   31   27 |       0    -162   2513   2573
cod  177|   -1     0     0    30   -59    66  -.04   31   26 |     ---     ---    ---    ---
esx   50|    2     2    -3   238   261    65  -.13  286   79 |   25137   -5418   9091  13248
iac  n/a|   -1    -1     3    10   -24   -10   .35   39   39 | 1471403   -6660   7756  12154
mcc  n/a|  112   169   232  -984 -1882  ---- -5.99  657  657 |     ---     ---    ---    ---

Table 2.1458.5  GPS week: 1458   Day: 5   MJD: 54455                            

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   58|    7     5    -9   -75    81    53  -.13   46   44 |       0       5   2713   2947
cod  177|  -13    -1     3    50   -20  -135   .09   36   27 |     ---     ---    ---    ---
esx   50|    7     3     8   185    20  -239  -.43  230   68 |   38739   10891   8609  32319
iac  n/a|   10     3    -2  -166   -42    91   .38   43   43 | 1462376    3257   7832  25599
mcc  n/a|  -24   115  -217   396  -931 -6870 -3.98  571  571 |     ---     ---    ---    ---

Table 2.1458.6  GPS week: 1458   Day: 6   MJD: 54456                            

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   58|    3     6    -2   -75   109    42  -.10   40   28 |       0     117   3190   3408
cod  177|   -9   -18    15   -27  -216    56   .05   71   52 |     ---     ---    ---    ---
esx   50|    3    -9   -22   320   -89  -197  -.11  284   85 |   12252    9944   7953  18418
iac  n/a|   11    38   -13   -77   304   355  -.05   84   84 | 1438965    5569   7464  16383
mcc  n/a|  -38  -341  -267  4313 -2221 -7412 -7.10  497  497 |     ---     ---    ---    ---

       
       
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 3.1458.0  GPS week: 1458   Day: 0   MJD: 54450                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  | 7658   41   13   21   44  ---   18 |   172  173  209  186  ---   178
 R04  | 7288   49   33   64   31  ---   26 |    52   88   83   76  ---    69
 R06  | 4048   36   52   41   45  ---   25 |    31   56   53   56  ---    43
 R07  | 2428   15   22   17   31  135   12 |    33   30   45   34  181    26
 R08  | 5908   30   38   43   43  ---   22 |    33   36   46   68  ---    38
XR10E | 8105  111   91  ---  429  ---  101 |    92   93  ---  211  ---    98
XR14E | 9137  789  107  ---  137  ---  121 |   433   72  ---   78  ---   116
XR15E |15357  125  124  ---  146  262   92 |   129  145  ---  102   75    78
XR17  |10677  128   80  ---   94  ---   72 |   107   83  ---   70  ---    68
 R19  | 2757   23   21  399   28  ---   17 |    58   70  422   76  ---    86
XR20  | 4717   38   22  ---   50  ---   26 |    48   65  ---   81  ---    67
XR21  | ---- >>>>   22  ---   36  ---   29 |  9999   89  ---   79  ---    81
 R23  | 9943   32   36  422   60  ---   30 |    67   62  406   51  ---    63
------+------------------------------------+--------------------------------
 RMS  | 6273   34   33  222   42  135      |T  104   81  180   89  128    77
 WRMS | 6273   30   25   51   42  135      |NE  66   75  180   77  181    71
 MEDI | 7288   41   36   43   45  135      |MD  58   72   83   76   75    69

Table 3.1458.1  GPS week: 1458   Day: 1   MJD: 54451                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  | 6930   38   16   39   44  ---   20 |   141  153  172  153  ---   150
 R04  | 7601   54   35   38   24  ---   22 |    35   94   58   70  ---    64
 R06  | 2258   51   48   28   46  ---   26 |    27   68   75   43  ---    45
 R07  | 1919   30   15   42   14  140   15 |    23   33   46   31  279    18
 R08  | 5647   36   20   55   56  ---   24 |    44   50   45   53  ---    42
XR10E | 2884  139   80  ---  293  ---  106 |    61  132  ---  186  ---   103
XR14E | 3572 1108   40  ---   56  ---   48 |   688   59  ---   85  ---    94
XR15E | 7665  317   37  ---   54  269   45 |   274   71  ---   76   74    96
XR17  |11604   83   30  ---   79  ---   45 |   147   83  ---   58  ---    90
 R19  | 2026   48   33  456   20  ---   24 |    20   49  281   22  ---    38
 R20  | 3386   23   20  512   30  ---   17 |    33   59  390   38  ---    54
XR21  | ---- >>>>   56  ---   76  ---   65 |  9999   92  ---   57  ---    65
 R23  | 8447   49   28  446   34  ---   25 |    40   38  268   30  ---    23
------+------------------------------------+--------------------------------
 RMS  | 5401   42   29  291   36  140      |T  127   75  166   69  176    67
 WRMS | 5401   43   26   48   36  140      |NE  56   71  166   55  279    58
 MEDI | 3572   51   33   42   46  140      |MD  40   68   75   57   74    64

Table 3.1458.2  GPS week: 1458   Day: 2   MJD: 54452                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  |15763   52   55   84   46  ---   34 |   135  179  206  140  ---   148
 R04  | 7324   16   52   39   59  ---   24 |    52   80   72   47  ---    54
 R06  | 2712   22   36   32   18  ---   16 |    29   48   62   51  ---    38
 R07  | 1317   11   41   33   28  119   16 |    36   39   51   47  416    33
 R08  | 7920   44   27   52   51  ---   25 |    43   58   87   65  ---    46
XR10E | 4116   52   74  ---  340  ---   62 |    72   82  ---  182  ---    84
XR14E |10096   89   75  ---  181  ---   85 |   315   68  ---  173  ---    69
XR15E | 5891  506   81  ---   78  257   80 |   336   76  ---   77  111   125
XR17  |12382  111   82  ---   87  ---   68 |   101   57  ---   34  ---    48
 R19  | 1589   23   42  508   32  ---   23 |    38   62  399   36  ---    58
XR20  | 1696   24   41  ---   18  ---   20 |    47   87  ---   31  ---    50
XR21  | ---- >>>>   44  ---   42  ---   43 |  9999  163  ---  105  ---   144
 R23  | 7661   57   67  452   43  ---   40 |    59   61  320   47  ---    52
------+------------------------------------+--------------------------------
 RMS  | 7884   36   47  261   42  119      |T  105   81  171   79  263    73
 WRMS | 7884   30   44   61   42  119      |NE  60   83  171   60  416    67
 MEDI | 5891   52   52   52   46  119      |MD  52   68   87   51  111    54

Table 3.1458.3  GPS week: 1458   Day: 3   MJD: 54453                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  |14526   51   58   57   24  ---   25 |   125  177  176  162  ---   153
 R04  |10160   35   56   29   26  ---   20 |    30   53   47   45  ---    36
 R06  | 4522   34   31   75   14  ---   21 |    49   54   60   57  ---    49
 R07  | 2976   24   29   37   15  931   14 |    29   45   48   29  770    29
 R08  |11829   39   53   69   18  ---   24 |    54   87   95   80  ---    67
XR10E | 7824  154  126  ---  118  ---   92 |    63  100  ---  112  ---    69
XR14E | 7415  357  163  ---   67  ---  104 |   263   81  ---  241  ---   125
XR15E | 9527  149  116  ---   76  942   77 |   159  114  ---  129  158    64
XR17  | 6011   63   49  ---   43  ---   35 |   122   71  ---   53  ---    60
 R19  | 1356   29   44  488   22  ---   21 |    38   56  380   38  ---    56
 R20  |  936   28   48  524   19  ---   21 |    46   73  371   47  ---    65
XR21  | ---- >>>>   53  ---   22  ---   34 |  9999   94  ---   62  ---    89
 R23  | 7751   66   98  389   53  ---   48 |    67  100  313   57  ---    61
------+------------------------------------+--------------------------------
 RMS  | 8263   40   56  291   27  931      |T   87   85  186   85  464    71
 WRMS | 8263   33   48   80   27  931      |NE  62   81  186   63  770    66
 MEDI | 7415   51   53   69   24  931      |MD  54   81   95   57  158    64

Table 3.1458.4  GPS week: 1458   Day: 4   MJD: 54454                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  |11627   28   42   40   45  ---   22 |   130  112  127  158  ---   128
 R04  |13136   24   16   86   35  ---   21 |    77   90  111   82  ---    81
 R06  | 1810   25   17   69   27  ---   18 |    53   50   72   76  ---    55
 R07  | 5216   13   16   49   26  657   13 |    35   50   78   39  296    39
 R08  |11910   42   37   78   47  ---   27 |    97   79  117   80  ---    84
XR10E | 2569   62   68  ---   47  ---   43 |    69  112  ---  152  ---    92
XR14E | 3879   57   65  ---   51  ---   41 |   132   47  ---   65  ---    31
XR15E |15929   44   40  ---  423  821   42 |   110   61  ---  231   72    92
XR17  | 8131   45   40  ---   34  ---   29 |    72   92  ---   61  ---    75
 R19  | 2400   33   31  429   22  ---   21 |    28   52  301   40  ---    46
 R20  | 1608   17   21  489   28  ---   15 |    38   64  327   50  ---    60
XR21  | ---- >>>>   16  ---   63  ---   40 |  9999  304  ---   83  ---   303
 R23  | 5529   52   47  459   64  ---   37 |    84   60  356   71  ---    57
------+------------------------------------+--------------------------------
 RMS  | 8054   31   31  286   39  657      |T   77   90  186   91  184    87
 WRMS | 8054   27   26   79   39  657      |NE  68   95  186   74  296    92
 MEDI | 5216   42   37   78   45  657      |MD  72   64  117   76   72    75

Table 3.1458.5  GPS week: 1458   Day: 5   MJD: 54455                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01  |10153   24   45   63   27  ---   23 |    54   82  108   70  ---    65
 R04  |14654   41   27   77   42  ---   26 |    61   60   57   65  ---    56
 R06  |  979   43   25   47   44  ---   22 |    44   62   43  102  ---    63
 R07  | 1076   43   30   36   21  571   19 |    20   72   89   36  291    36
 R08  |14695   36   31   48   49  ---   23 |    47   70  102   53  ---    53
XR10E | 1204   73   91  ---   72  ---   56 |    55  121  ---   92  ---    66
XR14E | 4633   22   21  ---   35  ---   18 |    99   28  ---   35  ---    28
XR15E | 7634   54   47  ---   50  478   36 |    36   45  ---  135   89    58
XR17  | 6899  138   37  ---  108  ---   71 |    36   81  ---  134  ---    76
XR19  | 2132   35   30  ---   26  ---   22 |    71   67  ---   70  ---    60
 R20  | 1876   48   16  499   40  ---   25 |    21   43  253   63  ---    51
 R23  | 3692   74   58  328   64  ---   46 |   134   62  238   98  ---    92
------+------------------------------------+--------------------------------
 RMS  | 8888   46   36  230   43  571      |T   56   66  127   79  190    58
 WRMS | 8888   44   27   68   43  571      |NE  54   66  127   76  291    61
 MEDI | 3692   43   30   63   42  478      |MD  47   62  102   70   89    58

Table 3.1458.6  GPS week: 1458   Day: 6   MJD: 54456                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R01E | 9308   35   55   44   36  ---   24 |    69   98   83   82  ---    64
 R04  |15633   36   36   40   73  ---   24 |    76   97  105  100  ---    87
 R06  | 2102   24   61   37  121  ---   31 |    46   66   56   99  ---    59
 R07E | 2411   26   77   37   88  497   30 |    36  104   76   67  447    56
 R08E |15661   15   43   96  107  ---   35 |    52   68   52   92  ---    49
XR10E | 1878   57   89  ---  112  ---   54 |    69   96  ---   97  ---    73
XR14E | 6030   19   41  ---   47  ---   22 |   106   27  ---   44  ---    34
XR15E | 9865   34   41  ---  106  697   37 |    46   70  ---   83   88    35
XR17  | 9205   63   72  ---  135  ---   56 |   103  126  ---  138  ---   115
 R19  | 2005   27   50  486   49  ---   27 |    85   83  475   80  ---   110
 R20  | 1638   27   37  459   42  ---   23 |    91   65  404   89  ---   105
 R23  | 3309   85  143  428  107  ---   76 |   194   41  446   67  ---   121
------+------------------------------------+--------------------------------
 RMS  | 8690   40   71  284   84  497      |T   81   78  212   86  267    75
 WRMS | 8690   28   52   85   84  497      |NE  99   79  297   95  ---    99
 MEDI | 3309   27   50   44   88  497      |MD  69   70   83   83   88    64



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