[IGSREPORT-16321] Wk 1481 IGLOS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Jun 12 05:00:57 PDT 2008


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IGS Electronic Report   12 Jun 05:01:00 PDT 2008      Message Number 16321
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Author:   AC Coordinator / NOAA NGS                                               
sum-file Version 2.0
                                                                               
IGLOS Orbit Combination - Week 1481   (May 25, 2008 - May 31, 2008) 
                                                                               
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 2.1481.
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:                   
                                                                               
 igl1481[0-6].sp3  IGLOS-PP Glonass ephemerides files for days 0-6
                   of GPS Week 1481 in the SP3 format.
 igl14817.sum      Combination Report for GPS Week 1481.


    
    
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  |    929.1 ns
                1  |    970.6 ns
                2  |    906.5 ns
                3  |    957.8 ns
                4  |    885.3 ns
                5  |    888.7 ns
                6  |    956.0 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
               ----+--------+---------------
                2  |  ESX   | R04
                3  |  ESX   | R08
                3  |  IAC   | R15
                4  |  IAC   | R15

    
         
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 1.1481, 1a.1481).
        
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 2.1481.0-6)                                                                                
    
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 3.1481.0-6). 
        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 1481 summary.                      (May 25, 2008 - May 31, 2008)

Table 1.1481.a     GPS week : 1481   MJD: 54611.0-54617.0

         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   67|    4     0    -5     2    18    11  -.16   43   40 |       0     125   2872   2974
        |    2     4     7    39    39   155   .04           |       0     482
cod  203|   -5     0     6    25    25    67  -.18   33   30 |     ---     ---    ---    ---
        |    1     3     5    35    28    92   .06           |     ---     ---
esx  115|    0     0     9   -49   -17   -30   .48   60   51 |   17616    3168   8130  19984
        |    5     4     5    54    54    88   .13           |   35385    7775
iac  n/a|    3     0   -12   -25   -30   -95   .02   54   54 |  928478   -1474   8226  16607
        |    3     3     9    50    35   113   .11           |   36042    3882
mcc  n/a|   -4    17    33    28   -69   154  1.27  308  308 |     ---     ---    ---    ---
        |   26    48    44   353   230   402  1.58           |     ---     ---


Table 1.1481.b     GPS week : 1481   MJD: 54611.0-54617.0   

         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
------+------------------------------------+------------------------------------------
 R04  |   25   21   24   16   18   24   23 |
 R06  |   16   27   30   23   20   25   22 |
 R07  |    0    0    0  654   53   39   28 |
 R08  |   35   32   38   26   19   32   18 |
 R09  |    0    0    0    0    0    0  --- |
 R10  |   20   20   20   21   20   11   14 |
 R11  |   21   22   25   29   23   31   25 |
 R13  |   37   31   35   37   31   56   32 |
 R14  |   15   18   18   25   22   23   19 |
 R15  |   27   23   31   41   33   33   31 |
 R17  |   31   19   19   37   28   24   35 |
 R19  |   16   25   15   25   15   15   18 |
 R20  |   24   18   14   15   17   15   18 |
 R23  |   21   21   21   22   25   24   30 |
 R24  |   23   18   22   19   17   17   12 |


Table 1.1481.c     GPS week : 1481   MJD: 54611.0-54617.0   

         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 1481 0   |   10   282   539   -4684     648  -15480  97.7  4396  4396 |  929099       0
brd 1481 1   | -146   125   980    4137   -4701    2833  76.0 >>>>> >>>>> |  970585       0
brd 1481 2   | -131   -20   554     926    1501   -6433 106.9  5498  5498 |  906489       0
brd 1481 3   | -114  -235   373    3802   -1637   -8562 102.8  4521  4521 |  957786       0
brd 1481 4   |  -18  -197   434    -518    2896  -13440  98.7  4312  4312 |  885323       0
brd 1481 5   |   55  -339   408    5834    1120  -17670  97.9  3051  3051 |  888735       0
brd 1481 6   |  -23   -71   514    2611    -130  -20790  95.7  3180  3180 |  955956       0
-------------+------------------------------------------------------------+----------------
brd 1481 mean|  -52   -65   543    1729     -43  -11363  96.5 >>>>> >>>>> |  927710       0
brd 1481 sdev|   78   216   204    3524    2486    7995   9.8 >>>>> >>>>> |   34901       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 2.1481.0  GPS week: 1481   Day: 0   MJD: 54611                            

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   67|    5     4     2     4     6   183  -.23   40   39 |       0     -56   2249   2331
cod  203|   -6     0     3    15    -8   -61  -.19   33   31 |     ---     ---    ---    ---
esx  115|   -3    -7    -2   -75    -9  -114   .32   57   45 |    8455   11848   7835  19754
iac  n/a|    9     0    -3   -25     8   -96   .13   44   44 |  930388     363   8329  16158
mcc  n/a|    0     9    50  -123   -98  -495   .37   75   75 |     ---     ---    ---    ---

Table 2.1481.1  GPS week: 1481   Day: 1   MJD: 54612                            

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   67|    1     2    -5    13    55   162  -.09   34   33 |       0    1056   4285   4478
cod  203|   -3    -5     0     9    72   -36  -.13   36   36 |     ---     ---    ---    ---
esx  115|    1     4    16  -126   -94   -56   .32   48   41 |   59767    2394   9410  20038
iac  n/a|    3     3    -9    48     2  -194   .04   42   42 |  972889     812   9264  18452
mcc  n/a|  -41   -13    49  -515    48   504  1.36  207  207 |     ---     ---    ---    ---

Table 2.1481.2  GPS week: 1481   Day: 2   MJD: 54613                            

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   67|    7    -5   -13   -67    76    60  -.15   49   41 |       0    -295   2418   2499
cod  203|   -7     3    10    82    41    86  -.21   28   24 |     ---     ---    ---    ---
esx  115|    8     3     9   -93    -9   -65   .54   66   54 |  -12935    8942   6703  18738
iac  n/a|    1    -1    -7    13   -39  -176   .02   49   49 |  902902    1391   6889  14392
mcc  n/a|   -2    -2     7   318   233   685   .92  106  106 |     ---     ---    ---    ---

Table 2.1481.3  GPS week: 1481   Day: 3   MJD: 54614                            

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   67|    0    -5   -15   -18   -47   -30  -.16   38   38 |       0     -13   2493   2564
cod  203|   -2     2    11    36    26   124  -.08   41   35 |     ---     ---    ---    ---
esx  115|   -2    -3    12   -45   -54  -113   .50   87   54 |   45542    5109   7567  19740
iac  n/a|    6     0    -8   -26     7    65   .01   61   61 |  958838    -835   7296  14936
mcc  n/a|    0     0     0     0     0     0   .0   100  100 |     ---     ---    ---    ---

Table 2.1481.4  GPS week: 1481   Day: 4   MJD: 54615                            

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   67|    4    -4    -3    21    23  -118  -.19   58   44 |       0    -172   2956   3016
cod  203|   -5    -1     8    44    34    28  -.27   27   23 |     ---     ---    ---    ---
esx  115|    1     2     9     6   -25    71   .68   44   76 |  -22201    -638   9120  19547
iac  n/a|   -1     0   -29  -114   -57   -38  -.20   78   78 |  886088   -3931   9209  16564
mcc  n/a|    0     0     0     0     0     0   .0    86   86 |     ---     ---    ---    ---

Table 2.1481.5  GPS week: 1481   Day: 5   MJD: 54616                            

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   67|    6     2     2     0    10    73  -.15   44   46 |       0     499   3052   3128
cod  203|   -7     2    11    25    16   164  -.16   38   33 |     ---     ---    ---    ---
esx  115|   -1    -4     8    29    85   -47   .46   69   47 |  -11633    6356   8846  18841
iac  n/a|    5    -7   -20   -26   -66  -236   .03   49   49 |  889425    1126   8988  16108
mcc  n/a|   41     3   121   -83  -161   -22  1.71  782  782 |     ---     ---    ---    ---

Table 2.1481.6  GPS week: 1481   Day: 6   MJD: 54617                            

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   67|    4     0    -3    62     5  -249  -.17   36   36 |       0    -144   2656   2807
cod  203|   -3     0     2   -35    -6   164  -.19   30   27 |     ---     ---    ---    ---
esx  115|   -7     1    13   -39   -17   112   .55   49   39 |   56320  -11834   7431  23230
iac  n/a|    0     0    -7   -49   -69    10   .11   57   57 |  958820   -9248   7613  19643
mcc  n/a|  -29   125     5   603  -509   410  4.52  797  797 |     ---     ---    ---    ---

       
       
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 3.1481.0  GPS week: 1481   Day: 0   MJD: 54611                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 2875   27   46   65   33  ---   25 |    34   69   46   34  ---    32
 R06  | 6933   35   18   26   28  ---   15 |   130  134  125  120  ---   127
XR07  | ----  ---    6  ---  ---  ---    0 |   ---  197  ---  ---  ---   221
 R08  | 4560   44   68   85   39  ---   35 |    49   61   49   45  ---    40
XR09E |>>>>>  ---    6  ---  ---  ---    0 |   --- 9999  ---  ---  ---  9999
 R10E | 5060   24   24   55   36  ---   19 |    26   24   24   37  ---    19
 R11E | 5119   35   17   52   42  ---   21 |    34   21   72   43  ---    33
 R13E | 3438   62   36   82   82  ---   37 |    44   37   74   60  ---    35
 R14E | 3966   22   19   27   32  ---   14 |    45   33   52   46  ---    36
 R15E | 3144   49   36   37   59   75   26 |    61   30   42   61   44    35
 R17  | 7076   29   24   83   70  ---   30 |    52   72  113   31  ---    59
 R19  | 2084   38   16   32   25  ---   16 |    29   43   60   23  ---    31
 R20  | 1537   50   23   50   39  ---   23 |    30   49   73   62  ---    41
 R23  | 4839   32   28   60   23  ---   20 |    35   50   73   32  ---    34
 R24  | 2152   51   38   35   22  ---   22 |    46   82   84   45  ---    57
------+------------------------------------+--------------------------------
 RMS  | 4395   40   33   57   44   75      |T   47   64   68   49   44    57
 WRMS | 4395   39   31   45   44   75      |NE  50   84   77   49  ---    71
 MEDI | 3966   35   24   52   36   75      |MD  44   49   72   45   44    35

Table 3.1481.1  GPS week: 1481   Day: 1   MJD: 54612                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  |>>>>>   23   48   33   30  ---   20 |    36   64   92   47  ---    42
 R06  |>>>>>   50   42   52   39  ---   26 |    71  136  142  102  ---   106
XR07  | ----  ---    6  ---  ---  ---    0 |   ---  509  ---  ---  ---   496
 R08  |>>>>>   60   62   51   42  ---   32 |    35   43   46   40  ---    28
XR09E | ----  ---  ---  ---  ---  ---    0 |   --- 9999 9999  ---  ---     0
 R10E |>>>>>   36   29   33   35  ---   19 |    42   32   40   47  ---    32
 R11E |>>>>>   31   17   45   54  ---   22 |    34   32   77   57  ---    42
 R13E |>>>>>   34   27   69   75  ---   30 |    39   26   65   79  ---    31
 R14E |>>>>>   31   25   32   33  ---   17 |    46   44   49   41  ---    35
 R15E |>>>>>   43   30   39   48  207   23 |    68   33   68   61  101    42
 R17  |>>>>>   26   25   43   34  ---   18 |    36   43   39   32  ---    32
 R19  |>>>>>   17   37   76   30  ---   25 |    27   52  104   30  ---    37
 R20  |>>>>>   17   31   49   24  ---   18 |    34   27   76   30  ---    33
 R23  |>>>>>   27   36   43   41  ---   21 |    38   62   61   22  ---    33
 R24  |>>>>>   23   32   29   39  ---   18 |    49   74   67   47  ---    56
------+------------------------------------+--------------------------------
 RMS  |>>>>>   34   36   48   42  207      |T   42   84   71   48  101    74
 WRMS |>>>>>   33   36   41   42  207      |NE  40  112   78   43  ---    95
 MEDI |>>>>>   31   30   43   39  207      |MD  38   43   67   47  101    35

Table 3.1481.2  GPS week: 1481   Day: 2   MJD: 54613                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 2140   44   27  161   29  ---   23 |    23   51  122   53  ---    38
 R06  |11908   73   47   42   39  ---   29 |   185  241  227  217  ---   217
XR07  | ----  ---   11  ---  ---  ---    0 |   ---  637  ---  ---  ---   645
 R08  | 5924   97   29   93   33  ---   37 |    66   47  114   57  ---    44
XR09E | ----  ---  ---  ---  ---  ---    0 |   --- 9999 9999  ---  ---     0
 R10E | 2514   43   25   30   38  ---   19 |    40   48   31   49  ---    33
 R11E | 2130   41   21   54   62  ---   25 |    29   24   61   82  ---    33
 R13E | 8756   42   32   80   85  ---   34 |    32   46  112  118  ---    48
 R14E | 4367   26   24   20   47  ---   17 |    29   30   32   44  ---    24
 R15E | 4291   50   31   37   90  106   31 |    75   41   45   48   62    35
 R17  | 1864   35   19   40   36  ---   18 |    39   73   72   56  ---    55
 R19  | 2991   22   11   29   40  ---   14 |    21   39   27   43  ---    29
 R20  | 2881   22   22   35   17  ---   14 |    28   50   42   36  ---    34
 R23  | 7908   26   33   45   36  ---   20 |    43   34   62   31  ---    28
 R24  | 1778   53   23   47   28  ---   21 |    27   59   90   52  ---    48
------+------------------------------------+--------------------------------
 RMS  | 5497   49   28   66   49  106      |T   49  101   79   68   62    93
 WRMS | 5497   41   24   54   49  106      |NE  54  136   94   68  ---   126
 MEDI | 2991   42   24   42   38  106      |MD  32   47   62   52   62    35

Table 3.1481.3  GPS week: 1481   Day: 3   MJD: 54614                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 2723   28   23   34   29  ---   16 |    49   50   51   66  ---    48
 R06  | 8615   28   32   56   43  ---   22 |   174  192  178  227  ---   186
XR07  |14474  635  672  ---  ---  ---  653 |   393  317  ---  ---  ---   470
 R08  | 5015   28   46  247   32  ---   26 |    42   48  214   52  ---    36
XR09E | ----  ---  ---  ---  ---  ---    0 |   --- 9999 9999  ---  ---     0
 R10E | 1777   40   31   29   39  ---   20 |    28   30   41   44  ---    26
 R11E | 2661   38   31   46   78  ---   28 |    28   26   48   78  ---    32
 R13E | 3967   38   80   59   71  ---   36 |    33   90   77   58  ---    42
 R14E | 4689   55   39   34   39  ---   25 |    49   35   59   50  ---    38
 R15E | 5309   67   48   53  151  100   41 |    98   35   61   84   43    55
 R17  | 1969   55   28  119   40  ---   37 |    30   74  161   66  ---    67
 R19  | 2975   17   47   73   27  ---   25 |    42   56  100   31  ---    46
 R20  | 2913   24   24   22   33  ---   15 |    26   31   43   55  ---    29
 R23  | 7321   19   27   46   57  ---   21 |    63   67   37   94  ---    60
 R24  | 2810   14   36   44   32  ---   18 |    49   57   60   22  ---    40
------+------------------------------------+--------------------------------
 RMS  | 4520   38   41   87   61  100      |T   78   79   86   71   43    83
 WRMS | 4520   38   35   54   61  100      |NE  96   99  105   76  ---   109
 MEDI | 2975   28   32   46   39  100      |MD  42   50   60   58   43    42

Table 3.1481.4  GPS week: 1481   Day: 4   MJD: 54615                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 3323   38   23   34   31  ---   17 |    50   39   57   55  ---    39
 R06  | 2322   47   25   26   44  ---   19 |   113  143  157  153  ---   143
 R07  |11364  135   40   79  133  ---   52 |   289  131   54   49  ---   161
 R08  | 5415   46   17   42   25  ---   18 |    60   55  154   76  ---    72
XR09E | ----  ---    8  ---  ---  ---    0 |   --- 9999  ---  ---  ---  9999
 R10E | 1448   45   26   35   36  ---   19 |    22   40   47   37  ---    30
 R11E | 2713   43   29   29   63  ---   22 |    33   38   81   68  ---    42
 R13E | 1979   87   28   51   60  ---   31 |    51   32   80   54  ---    34
 R14E | 3340   54   24   24   56  ---   21 |    34   32   35   37  ---    26
 R15E | 4138   59   36   51  201   86   33 |    47   44   78  123   31    40
 R17  | 2163   37   43   58   57  ---   28 |    24   65   88   28  ---    45
 R19  | 1945   27   18   28   31  ---   14 |    28   35   36   44  ---    28
 R20  | 2908   27   14   34   48  ---   17 |    19   39   54   59  ---    34
 R23  | 4829   39   24   58   56  ---   25 |    23   37   89   81  ---    41
 R24  | 1867   39   16   28   41  ---   17 |    17   42   52   33  ---    31
------+------------------------------------+--------------------------------
 RMS  | 4312   58   27   44   78   86      |T   57   55   75   64   31    54
 WRMS | 4312   44   23   76   78   86      |NE  69   65   82   64  ---    66
 MEDI | 2713   43   24   34   48   86      |MD  33   39   57   54   31    39

Table 3.1481.5  GPS week: 1481   Day: 5   MJD: 54616                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 3471   29   29   42   59  ---   23 |    28   42   43   40  ---    23
 R06  | 2097   35   40   33   60  ---   25 |   123  150  150  177  ---   147
 R07  | 7121   46   77   88   54  ---   39 |    99  141   99   40  ---   149
 R08  | 3820   49   40   94   31  ---   31 |    57   79  138   72  ---    78
XR09E | ----  ---   12  ---  ---  ---    0 |   --- 9999  ---  ---  ---  9999
 R10E |  820   21   15   19   22  ---   11 |    40   20   31   26  ---    18
 R11E | 1658   42   39   80   54  ---   30 |    24   29   79   54  ---    25
 R13E | 2789  100   48  167   56  ---   56 |    45   44  158   49  ---    41
 R14E | 1446   46   24   45   45  ---   23 |    33   28   37   31  ---    16
 R15E | 3491   45   29   68   83  131   33 |    59   46   77   90   26    42
 R17  | 2891   34   30   38   58  ---   23 |    30   41   77   62  ---    39
 R19  | 1212   21   29   24   28  ---   15 |    47   27   40   26  ---    26
 R20  | 2209   25   21   35   22  ---   14 |    18   40   38   33  ---    23
 R23  | 2257   30   42   49   41  ---   23 |    56   59   24   28  ---    35
 R24  | 1800   26   29   21   35 1099   16 |    43   58   47   35    8    40
------+------------------------------------+--------------------------------
 RMS  | 3050   44   38   69   49  782      |T   50   57   74   54   17    50
 WRMS | 3050   46   33   47   49  782      |NE  55   70   72   57    8    62
 MEDI | 2209   34   29   42   45  131      |MD  43   42   47   40    8    35

Table 3.1481.6  GPS week: 1481   Day: 6   MJD: 54617                            

        Weighted Average                   Orbit Dynamics (7 days)
 PRN  |  brd  bkg  cod  esx  iac  mcc  IGL |   bkg  cod  esx  iac  mcc   IGL
------+------------------------------------+--------------------------------
 R04  | 3756   23   43   42   46  ---   22 |    26   49   27   39  ---    27
 R06  | 1518   35   38   45   26  ---   21 |   167  150  167  167  ---   160
 R07  | 5589   59   40   50   41  ---   28 |   130  109   61   26  ---   120
 R08  | 2205   27   14   54   28  ---   18 |    33   34   52   44  ---    38
 R10E | 1499   27   14   25   31  ---   14 |    44   28   32   30  ---    24
 R11E | 2358   28   24   42   75  ---   24 |    31   29   50   66  ---    34
 R13E | 6272   65   25   43   85  ---   32 |    39   41   73   61  ---    30
 R14E |  972   44   18   30   36  ---   18 |    34   25   24   39  ---    18
 R15E | 4240   35   39   43   93  360   30 |    35   40   49   82   36    31
 R17  | 3414   27   31   83  100  ---   34 |    46   47  104   62  ---    41
 R19  | 1432   11   30   45   35  ---   18 |    51   60   53   38  ---    46
 R20  | 1880   35   24   39   26  ---   18 |    30   36   47   37  ---    27
 R23  | 1631   35   45   74   58  ---   30 |    42   77   79   54  ---    48
 R24  | 1750   15    9   31   27 1068   11 |    67   64   55   57    7    57
------+------------------------------------+--------------------------------
 RMS  | 3180   36   30   49   57  797      |T   55   56   62   57   21    50
 WRMS | 3180   36   27   39   57  797      |NE  65   69   71   58    7    62
 MEDI | 1880   28   25   43   36  360      |MD  39   41   52   44    7    34



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