[IGSREPORT-23773] Wk 1853 IGLOS Final Orbits

IGS ACC igs.acc at noaa.gov
Sun Aug 2 06:52:52 PDT 2015


Author:   AC Coordinator / NOAA NGS                                               
sum-file Version 2.0
                                                                               
IGLOS Orbit Combination - Week 1853   (Jul 12, 2015 - Jul 18, 2015) 
                                                                               
Contact: igs.acc 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
center's 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 2.1853.
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:
                                                                               
 igl1853[0-6].sp3  IGLOS-PP Glonass ephemerides files for days 0-6
                   of GPS Week 1853 in the SP3 format.
 igl18537.sum      Combination Report for GPS Week 1853.


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

Starting 16-Sep-2012 (GPS Week 1706, day 0, MJD 56186) the CODE Analysis Center
began submitting two solutions: COD (3d SNX with 3d orbital arcs) and COF (1d
SNX with 1d orbital arcs). The COF clocks and orbits are included for
comparison only; the COD solution is included with weight.

 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. The grg orbits are introduced for the first time
    starting 02-Jan-2011 (GPS Week 1617) but only for statistics until
    22-May-2011 (GPS Week 1637). The bkg orbits were no longer included after
    21-May 2011 (GPS Week 1636). The emx orbits are introduced with full weight
    for the first time starting 11-Sep-2011 (GPS Week 1653).

 3. From 01-May-2005 (GPS Week 1321; MJD 53491) [IGSMAIL-5151] until 4-Nov-2006
    BKG, ESA, and CODE referred their GLONASS orbit products to the following
    satellite antenna offset (SAO) values (expressed in the spacecraft body
    frame):
    
      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.
    
    Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011
    (GPS Week 1631, day 6, MJD 55667) the absolute antenna model is introduced
    (IGSMAIL #5438). The antenna phase center offsets and phase center variations
    are given in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    

 4. The satellite clock values in the combined orbit files are taken from the
    broadcast files. The following gps/glonass time offsets were added to the
    broadcast clocks. Before GPS Week 1637, the time offsets were derived
    from the bkg summary files; starting Week 1637 the offsets are derived
    from the gfz summary files.
    
               Day | applied clock offset
               ----+---------------------
                0  |      0.5 ns
                1  |     -5.7 ns
                2  |      1.2 ns
                3  |      2.4 ns
                4  |      1.8 ns
                5  |      0.5 ns
                6  |      1.0 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
               ----+--------+---------------
                1  |  GRG   | R02

    
         
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 1.1853, 1a.1853).
        
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 2.1853.0-6)                                                                                
    
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 3.1853.0-6). 
        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 1853 summary.                      (Jul 12, 2015 - Jul 18, 2015)

Table 1.1853.a     GPS week : 1853   MJD: 57215.0-57221.0

         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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -2     0    -4    31   -55    41   .45   44   32 |     ---     ---    ---    ---
        |    1     1     1     9    19    52   .12           |     ---     ---
cof  n/a|   -1     0    -5    21   -44    35   .30   45   34 |     ---     ---    ---    ---
        |    1     1     3    33    32    60   .08           |     ---     ---
emx  n/a|   -1     0     6   -18   -56   -43   .36   27   26 |   -2947    -269   3737   7362
        |    1     1     6    23    16    22   .10           |    4271    1612
esx  n/a|    0    -1    -1    -5    34    29  -.15   23   21 |   -1371    -378   3728   8317
        |    0     0     2    23    17    38   .10           |    5174    1695
gfz  n/a|    1     0     2    34    71    53  -.06   25   18 |       0     301   3636   6874
        |    1     1     1    21    22    30   .10           |       0     922
grg  n/a|   -1     2     6    13    -2    75  -.31   47   33 | -851796   -1843  10924 645259
        |    1     1     7    24    26    63   .04           |  104316    6089
iac  n/a|    0     0    -5   -26   -21   -86  -.21   23   23 |    1004     426   3735   6882
        |    0     1     3    24    24    48   .03           |    1983    1625
mcc  n/a|    0     1   -32   115   -41  -902  -.46  272  272 |     ---     ---    ---    ---
        |   10     7    17   148   130   326   .64           |     ---     ---


Table 1.1853.b     GPS week : 1853   MJD: 57215.0-57221.0   

         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
------+------------------------------------+------------------------------------------
 R01  |   13   13   10   13   15   18   16 |
 R02  |   13    9    9    8    9    9    9 |
 R03  |    8    9    7    9    8   13   10 |
 R04  |    6    8    8    9   10    7    9 |
 R05  |   11   12   14   14   12   14   14 |
 R06  |    9   12    8    8   10    8    7 |
 R07  |    7    7   10   12    6    7    6 |
 R08  |    6    7    8    6    8    9    6 |
 R09  |   14   13   14   12   13   14   14 |
 R10  |    8    8    9    8    8    8    9 |
 R11  |   25   24   22   21   21   22   22 |
 R12  |   25   25   27   27   24   21   23 |
 R13  |   13    8    9    8    8    9    8 |
 R14  |   19   19   15   17   20   17   17 |
 R15  |    8    9    9   11   12   10   10 |
 R16  |   10   11   10   10   10   11   10 |
 R17  |   18   21   16   17   18   21   23 |
 R18  |    8   10    8    9    9   15   17 |
 R19  |    8   11   11   12   10   13   13 |
 R20  |   13   18   17   15   16   17   18 |
 R21  |    9    9   10   11   10   18   15 |
 R22  |   10   11    8   10   11   11   10 |
 R23  |   10   12   10   11    9   11   12 |
 R24  |   12   13   14   14   15   17   16 |


Table 1.1853.c     GPS week : 1853   MJD: 57215.0-57221.0   

         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 1853 0   | -132  -396   223     488    -595    2116  84.0 >>>>> >>>>> |     545       0
brd 1853 1   | -177 17750 -6192  338100   -4361  -44490  20.9 >>>>> >>>>> |   -5730       0
brd 1853 2   |  695   281  -119    3530  -28560   -7984  27.1 >>>>> >>>>> |    1154       0
brd 1853 3   |22310  4737  1204   28130  -54220 -129000 -16.9 >>>>> >>>>> |    2425       0
brd 1853 4   |14640  -425 -8764    1740 -181700    -349  78.7 >>>>> >>>>> |    1792       0
brd 1853 5   |-2699    71   433    3184   12900   -6579  74.1 >>>>> >>>>> |     502       0
brd 1853 6   |  229  9539    53   19140    -135  -30280  80.2 >>>>> >>>>> |    1039       0
-------------+------------------------------------------------------------+----------------
brd 1853 mean| 4980  4508 -1880   56330  -36667  -30938  49.7 >>>>> >>>>> |     246       0
brd 1853 sdev| 9541  6912  3918  124688   67755   46455  39.4 54413 54413 |    2722       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 2.1853.0  GPS week: 1853   Day: 0   MJD: 57215                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -3     1    -7    34   -37    15   .39   45   33 |     ---     ---    ---    ---
cof  n/a|   -1     2    -7    44   -62   -17   .34   48   35 |     ---     ---    ---    ---
emx  n/a|    0    -1    -2    19   -76   -45   .21   25   25 |   -5348    1741   3761   8507
esx  n/a|    0    -2     2   -49    55   -16  -.07   21   17 |   -7594    1930   3755   9271
gfz  n/a|    0     0     3     6    46    34   .11   24   16 |       0    1665   3753   7952
grg  n/a|   -3     3    12    44    34   115  -.35   39   31 | -973076    1175   3765 553812
iac  n/a|    0    -1    -6    -8   -22   -34  -.20   22   22 |    2355     337   3745   8013
mcc  n/a|   16    12   -42   -71   -48  -721 -1.02  237  237 |     ---     ---    ---    ---

Table 2.1853.1  GPS week: 1853   Day: 1   MJD: 57216                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -4     1    -3    41   -73   -36   .32   47   35 |     ---     ---    ---    ---
cof  n/a|   -2     1    -3    46   -14   -14   .38   49   38 |     ---     ---    ---    ---
emx  n/a|   -1    -1     1   -43   -54   -11   .29   28   28 |   -5573   -2561   3441   6862
esx  n/a|    0     0     2    -1    30    60  -.09   23   20 |    2651   -2466   3431   6609
gfz  n/a|    0     0     4    26    52    83   .02   27   18 |       0     -43   3443   6289
grg  n/a|    0     4     3   -17     0    89  -.31   97   34 | -778280    -811   3551 618474
iac  n/a|    1     0    -4   -16    -9  -129  -.21   21   21 |   -2708   -1240   3445   6874
mcc  n/a|   12     7   -48   267  -188 -1541  -.44  353  353 |     ---     ---    ---    ---

Table 2.1853.2  GPS week: 1853   Day: 2   MJD: 57217                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|    0     1    -6    26   -23     0   .33   47   29 |     ---     ---    ---    ---
cof  n/a|   -3    -1    -4     8   -15   -15   .27   50   31 |     ---     ---    ---    ---
emx  n/a|   -1    -1     3   -26   -67   -49   .28   22   23 |   -4782    -754   3731   7207
esx  n/a|    0    -1    -2    -3    40    -5  -.04   21   19 |    7770     275   3719   9016
gfz  n/a|    2     0     0    24    98    57  -.07   26   18 |       0     474   3568   6875
grg  n/a|   -1     3     3    30    10   110  -.37   38   34 | -808639  -15022   4368 592312
iac  n/a|    0     1     0   -15   -38   -37  -.26   22   22 |    2055    -649   3723   6476
mcc  n/a|   -7     4   -39   245   -15 -1084   .03  259  259 |     ---     ---    ---    ---

Table 2.1853.3  GPS week: 1853   Day: 3   MJD: 57218                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -2     2    -4    37   -53    93   .43   43   30 |     ---     ---    ---    ---
cof  n/a|   -1     0    -8    60   -21    54   .24   43   31 |     ---     ---    ---    ---
emx  n/a|    0     0     8    -7   -29   -78   .48   26   26 |    6311    1989   3884   7859
esx  n/a|    0    -1    -4     6    58    59  -.15   22   21 |   -1967    1617   3866   9174
gfz  n/a|    1     1     0    77    87    68  -.09   26   17 |       0    1202   3484   6252
grg  n/a|    0     2    11    -3   -49   113  -.31   37   31 | -952468    3981  53446 565350
iac  n/a|    0     1    -5   -72   -42  -102  -.19   22   22 |    2729    2653   3870   7307
mcc  n/a|   -1   -10   -26    36  -238  -868  -.78  219  219 |     ---     ---    ---    ---

Table 2.1853.4  GPS week: 1853   Day: 4   MJD: 57219                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -4     0    -3    32   -55   112   .49   41   29 |     ---     ---    ---    ---
cof  n/a|   -4     0    -2   -36   -29   146   .16   39   29 |     ---     ---    ---    ---
emx  n/a|    0     0     5   -48   -65   -62   .37   28   25 |   -1844    -932   4079   6461
esx  n/a|    0    -1    -3   -19    27    85  -.16   23   21 |   -1539    -864   4056   7548
gfz  n/a|    1     1     2    36    51    84  -.04   23   18 |       0      83   4055   6220
grg  n/a|   -2     0    15    33   -19    28  -.28   38   34 | -953958    -228   4063 717214
iac  n/a|    0     1    -6     0    19  -165  -.24   22   22 |     246    2688   4064   5593
mcc  n/a|   -1     0    -2    57   115  -537 -1.40  240  240 |     ---     ---    ---    ---

Table 2.1853.5  GPS week: 1853   Day: 5   MJD: 57220                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|    0    -1    -3    11   -68    50   .60   41   36 |     ---     ---    ---    ---
cof  n/a|    0     0     0    -1   -81    65   .38   43   39 |     ---     ---    ---    ---
emx  n/a|    0    -1    14   -16   -39   -25   .44   31   31 |   -4268    -381   3363   8158
esx  n/a|    0    -1    -1     1    11    18  -.25   24   23 |   -5629   -1766   3372   9028
gfz  n/a|    0    -1     4    29    67    43  -.23   25   20 |       0   -1124   3391   7859
grg  n/a|   -3     2     4    19     4   -50  -.25   40   35 | -723295    -421   3353 745937
iac  n/a|    0    -1    -9   -28    -6   -63  -.16   25   25 |    -108      77   3373   7483
mcc  n/a|  -11     0   -49   292    71  -741   .19  339  339 |     ---     ---    ---    ---

Table 2.1853.6  GPS week: 1853   Day: 6   MJD: 57221                            

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]
--------+----------------------------------------------------+------------------------------
cod  n/a|   -1     0    -2    35   -75    55   .62   45   34 |     ---     ---    ---    ---
cof  n/a|   -1     1    -8    29   -90    32   .35   46   35 |     ---     ---    ---    ---
emx  n/a|   -3     0    12    -5   -59   -31   .46   29   25 |   -5129    -986   3906   6483
esx  n/a|    0    -1    -2    27    20     8  -.30   26   23 |   -3295   -1374   3901   7578
gfz  n/a|    2    -2     2    40    95     0  -.09   23   20 |       0    -150   3762   6673
grg  n/a|    0     0    -4   -10     1   118  -.28   39   35 | -772860   -1580   3926 723718
iac  n/a|    0     0    -7   -43   -49   -73  -.21   24   24 |    2459    -882   3926   6431
mcc  n/a|   -7     0   -19   -15    14  -825   .23  256  256 |     ---     ---    ---    ---

       
       
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 3.1853.0  GPS week: 1853   Day: 0   MJD: 57215                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  | ----   38   37   28   29   15   47   20  ---   12 |    51   65   66   78   87   93   72  ---    69
 R02  |>>>>>   19   19   13    7   26   71   28  386   12 |    59   63   71   70   81  170   53  599    69
 R03  |>>>>>   24   19   18   13   19   29   11  ---    8 |    53   57   58   74   75   92   61  ---    67
 R04  | ----   10   18   13   11   16   14    9  ---    5 |    54   61   52   55   46   51   59  ---    52
 R05  | ----   37   43   26   13   17   38   16  ---   10 |    52   59   68   79   74   86   75  ---    70
 R06  |>>>>>   23   25   16   22    9   28   22  ---    9 |    26   24   39   60   45   29   49  ---    42
 R07  |>>>>>    8   13   17    8   11   23   17  203    6 |    69   68   62   71   76   62   82  155    70
 R08  |>>>>>   10   15   13   13   13   22    9  ---    5 |    61   60   67   62   73   57   65  ---    63
 R09  |>>>>>   21   20   31   30   27   44   27  ---   13 |    51   59   56   73   73   61   69  ---    61
 R10  |>>>>>   22   21   14   19   15   24   11  ---    7 |    56   61   61   68   61   40   60  ---    58
 R11  | ----  123  120   54   22   51   37   34  ---   24 |   112  107   72   66   80   85   61  ---    60
 R12  | ----  132  137   38   36   41   66   33  104   25 |   126  129   57   62   78   83   70   65    57
 R13  |>>>>>   29   32   19   17   24   71   23  ---   13 |    53   53   46   49   57   42   55  ---    45
 R14  |>>>>>   35   18   43   42   32   50   43  ---   18 |    31   45   27   70   56   43   39  ---    36
 R15  | ----   18   30   17   15   21   23   17  ---    8 |    65   72   65   67   70   67   55  ---    63
 R16  | ----   27   36   22   23   18   34   19  ---   10 |    51   60   48   42   42   34   43  ---    38
XR17E | ----   39   63   36   34  ---   33   37  ---   18 |    46   64   40   66  ---   47   50  ---    43
 R18E |>>>>>   27   28   15   17   17   21   15  263    8 |    47   55   48   59   64   59   51   99    53
 R19E | ----   33   50   12   13   16   27    8  ---    7 |    56   63   42   44   52   46   39  ---    42
 R20E | ----   35   44   24   21   26   44   30  ---   13 |   136  139  124  120  131  124  134  ---   125
 R21E | ----   26   28   17   13   19   35   13  104    8 |    50   47   55   53   58   65   50   95    52
 R22E |>>>>>   32   26   17   15   26   22   22  ---    9 |   115  120  109  113  121  111  107  ---   111
 R23E | ----   28   45   18   22   19   30   22  ---   10 |    43   61   45   38   42   53   38  ---    37
 R24E | ----   31   35   34   16   24   24   23  ---   11 |    54   53   53   44   43   50   47  ---    43
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   45   48   25   21   24   39   22  237      |T   63   68   59   65   68   68   61  202    59
 WRMS |>>>>>   33   35   25   17   16   31   22  237      |NE  60   65   57   65   67   68   60  273    57
 MEDI |>>>>>   27   28   18   17   19   30   20  203      |MD  53   61   56   66   70   59   55   99    57

Table 3.1853.1  GPS week: 1853   Day: 1   MJD: 57216                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  |>>>>>   18   27   24   23   33   24   34  ---   12 |    29   40   27   39   45   35   58  ---    34
 R02  |>>>>>   13   12   14   17   21  437   18  678    8 |    36   30   42   38   37  302   35  439    34
 R03  | ----   14   16   16   12   31   26   18  ---    9 |    35   34   37   41   40   46   45  ---    37
 R04  |>>>>>   18   24   17   17   21   20   12  ---    7 |    35   37   27   22   16   32   22  ---    19
 R05  |>>>>>   33   28   28   26   29   26   24  ---   12 |    33   45   63   55   48   45   35  ---    44
 R06  |>>>>>   21   34   18   35   25   31   19  ---   11 |    16   29   24   46   40   24   19  ---    23
 R07  | ----   19   22   14   17   16   14   13  321    7 |    38   39   35   36   50   45   50  308    41
 R08  |>>>>>   11   20   14   13   18   30    7  ---    7 |    37   32   43   49   59   28   41  ---    42
 R09  | ----   31   31   33   29   24   35   26  ---   13 |    44   39   48   59   61   48   40  ---    45
 R10  |>>>>>   15   15   13   18   16   30   14  ---    8 |    61   66   64   71   71   48   61  ---    62
 R11  |>>>>>  127  146   40   31   47   55   21  ---   24 |   110  129   81   87   90   95   69  ---    76
 R12  | ----  135  130   50   23   41   39   28  135   24 |   121  120   86   95   97   71   79   40    81
 R13  |>>>>>   20   33   22   18   15   25   12  ---    8 |    55   65   61   63   59   65   48  ---    55
 R14  | ----   41   37   53   35   35   59   26  ---   18 |    32   48   24   48   49   44   35  ---    30
 R15  | ----   20   26   21   22   25   19   17  ---    9 |    68   75   77   63   62   54   57  ---    61
 R16  | ----   29   23   16   20   28   24   24  ---   10 |    38   36   50   50   55   48   30  ---    41
XR17E | ----   47   55   50   46  ---   38   33  ---   21 |    43   56   33   53  ---   40   32  ---    25
 R18E | ----   32   31   18   15   19   35   14  137    9 |    43   44   41   43   50   49   44   84    41
 R19E |>>>>>   38   30   20   16   19   41   11  ---   10 |    63   61   51   53   53   52   47  ---    49
 R20E |>>>>>   56   47   40   31   37   50   34  ---   18 |   108   98   93   86   85   99   73  ---    82
 R21E |>>>>>   32   23   17   14   17   27    8  152    8 |    45   47   41   39   46   53   36  163    38
 R22E |>>>>>   30   26   20   22   24   34   21  ---   11 |   100  101   89  101   91   88   74  ---    87
 R23E |>>>>>   40   39   27   23   21   24   22  ---   11 |    43   55   48   55   57   50   30  ---    43
 R24E | ----   22   40   41   26   25   24   25  ---   12 |    40   57   54   57   56   44   44  ---    43
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   47   49   28   23   27   97   21  353      |T   53   57   51   56   57   62   46  206    47
 WRMS |>>>>>   35   38   28   20   18   34   21  353      |NE  49   54   49   53   54   64   45  262    45
 MEDI |>>>>>   29   28   20   22   24   30   19  152      |MD  43   47   48   53   55   48   44  163    42

Table 3.1853.2  GPS week: 1853   Day: 2   MJD: 57217                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  |>>>>>   25   25   25   17   22   15   22  ---    9 |    53   61   67   63   72   63   73  ---    64
 R02  |>>>>>   12   17   18   15   10   41   18  502    8 |    40   43   48   37   44  147   44  266    39
 R03  |>>>>>   14   14   18   13   15   13   18  ---    7 |    41   45   56   42   44   43   38  ---    42
 R04  | ----    9    9   10    8   23   23   21  ---    7 |    39   43   36   44   39   45   52  ---    40
 R05  | ----   21   25   20   38   30   52   24  ---   14 |    38   62   54   39   63   44   40  ---    43
 R06  |>>>>>   15   26    9   23   17   29   16  ---    8 |    22   33   25   38   31   24   31  ---    26
 R07  |>>>>>   10   15   10   11   16   50   24  137    9 |    49   54   53   62   50   26   74  115    53
 R08  |>>>>>   19   20   11   17   20   32    9  ---    8 |    47   60   59   55   65   42   55  ---    55
 R09  | ----   52   54   22   25   37   41   24  ---   14 |    59   75   65   74   88   69   69  ---    68
 R10  |>>>>>   16   15   16   21   16   17   24  ---    8 |    57   53   45   63   55   47   43  ---    49
 R11  |>>>>>  123  115   30   18   44   46   21  ---   21 |   103   96   50   48   54   76   43  ---    43
 R12  | ----  142  158   52   27   50   67   21  120   27 |   115  130   44   58   69   91   52   32    47
 R13  |>>>>>   15   24   21   22   18   19   16  ---    8 |    48   39   53   47   49   32   41  ---    43
 R14  |>>>>>   33   30   34   25   26   50   35  ---   15 |    27   36   25   49   36   62   37  ---    30
 R15  | ----   15   15   16   20   19   31   20  ---    9 |    64   68   69   70   68   58   46  ---    61
 R16  |>>>>>   32   30   17   20   18   24   23  ---    9 |    50   56   53   56   50   52   47  ---    48
XR17E |>>>>>   41   51   26   33  ---   20   35  ---   16 |    48   53   44   56  ---   43   36  ---    39
 R18E |>>>>>   26   38   14   14   17   23   15  170    7 |    41   44   33   38   45   46   36   53    36
 R19E |>>>>>   39   49   12   14   21   38   26  ---   10 |    62   75   51   62   66   71   39  ---    54
 R20E |>>>>>   44   45   35   27   26   64   34  ---   16 |    83   83   83   77   90   95   77  ---    77
 R21E |>>>>>   35   38   22   15   19   23   17  147    9 |    45   51   42   41   49   50   36   55    39
 R22E |>>>>>   33   32   12   12   17   26   11  ---    8 |    75   73   74   73   76   82   69  ---    72
 R23E |>>>>>   24   24   19   21   20   34   21  ---   10 |    50   49   46   47   55   53   33  ---    42
 R24E | ----   28   31   20   34   40   37   31  ---   14 |    41   46   41   48   70   51   49  ---    42
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   47   50   22   21   26   38   22  259      |T   54   59   50   53   57   58   48  104    48
 WRMS |>>>>>   29   31   23   19   18   34   22  259      |NE  53   59   50   52   54   57   49  137    46
 MEDI |>>>>>   25   26   18   20   20   31   21  147      |MD  48   53   50   49   55   51   43   55    43

Table 3.1853.3  GPS week: 1853   Day: 3   MJD: 57218                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  | ----   39   28   23   16   46   25   22  ---   13 |    46   61   77   66   88   80   59  ---    66
 R02  |>>>>>   13   15   18   16   13   23   16  351    7 |    50   52   61   46   51   92   45  128    50
 R03  |>>>>>   24   21   25   16   15   24   10  ---    8 |    45   40   59   49   51   43   45  ---    45
 R04  | ----   14   16   18   13   12   37   21  ---    8 |    49   48   50   60   60   40   65  ---    54
 R05  | ----   28   39   26   30   29   50   30  ---   14 |    55   62   38   38   43   67   50  ---    41
 R06  |>>>>>   11   14   14   15   19   25   19  ---    7 |    34   37   36   34   32   46   32  ---    31
 R07  |>>>>>   16   16   15   23   19   65   18  148   12 |    59   48   65   45   47   78   69  224    56
 R08  |>>>>>   14   13   12   11   16   14   11  ---    5 |    54   47   57   47   54   54   52  ---    51
 R09  | ----   28   27   25   28   27   40   21  ---   12 |    54   57   76   60   60   67   55  ---    57
 R10  |>>>>>   12   15   14   18   18   29   15  ---    8 |    62   67   70   67   69   49   54  ---    61
 R11  |>>>>>  101  104   38   28   40   41   31  ---   21 |   119  124   79   85  101   70   81  ---    80
 R12  | ----  126  127   51   35   53   60   25  110   26 |   141  142   96  106  119   91   92   51    95
 R13  |>>>>>   15   16   16   15   18   20   15  ---    7 |    59   68   58   64   59   57   57  ---    58
 R14  |>>>>>   41   37   48   35   25   43   33  ---   17 |    42   49   27   50   43   47   38  ---    28
 R15  | ----   12   11   16   24   19   54   18  ---   11 |    66   73   69   69   70   67   67  ---    65
 R16  | ----   19   22   22   21   21   27   22  ---   10 |    46   51   43   54   50   44   42  ---    42
XR17E |>>>>>   50   50   19   28  ---   49   27  ---   16 |    40   42   44   60  ---   54   49  ---    43
 R18E |>>>>>   30   28   21   12   23   26    9  160    9 |    51   60   54   52   68   59   50   43    52
 R19E | ----   48   45   22   20   27   33   13  ---   12 |    79   80   70   79   86   74   72  ---    73
 R20E | ----   46   42   35   25   18   51   27  ---   14 |    69   73   70   70   73   89   72  ---    69
 R21E | ----   37   31   22   21   23   26   24  241   11 |    50   53   54   54   62   65   48  120    50
 R22E |>>>>>   37   41   21   13   23   27   10  ---    9 |    76   77   77   74   82   82   69  ---    74
 R23E |>>>>>   25   26   26   26   15   17   33  ---   11 |    53   63   57   60   61   51   42  ---    50
 R24E | ----   20   35   27   27   22   43   36  ---   13 |    54   60   67   55   63   65   54  ---    52
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   43   43   26   22   26   37   22  219      |T   60   63   60   60   64   63   56  113    55
 WRMS |>>>>>   30   31   26   21   17   31   22  219      |NE  61   64   60   58   62   62   56  134    55
 MEDI |>>>>>   25   27   22   21   21   29   21  160      |MD  54   60   59   60   61   65   54  120    52

Table 3.1853.4  GPS week: 1853   Day: 4   MJD: 57219                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  | ----   32   41   28   32   46   40   25  ---   15 |    47   63   61   76   84   60   43  ---    57
 R02  | ----   21   20   11   21   21   34   10  206    8 |    48   51   52   48   55   87   52   94    52
 R03  |>>>>>   24   34   16   18   14   27   14  ---    8 |    43   58   62   61   55   70   59  ---    57
 R04  | ----   12   18   17   18   12   35   27  ---    9 |    42   48   44   40   51   33   64  ---    45
 R05  | ----   22   30   28   24   26   38   23  ---   11 |    46   62   42   41   50   69   44  ---    42
 R06  | ----   17   22   16   35   10   35   13  ---   10 |    35   37   41   56   42   50   36  ---    40
 R07  |>>>>>    9   23   15   13   12   22   13  318    6 |    54   68   50   52   49   76   45  452    50
 R08  |>>>>>   11   30   11   22   17   23   13  ---    7 |    49   66   55   58   43   57   47  ---    49
 R09  | ----   29   28   30   26   26   44   20  ---   12 |    48   57   41   64   60   64   53  ---    50
 R10  |>>>>>   12   15   18   19   16   20   13  ---    7 |    40   39   38   42   38   31   32  ---    34
 R11  | ----  102   87   39   18   35   39   27  ---   20 |    92   81   34   54   67   61   49  ---    46
 R12  |>>>>>  107   76   56   23   31   63   35  157   24 |    94   75   57   61   66   51   54   61    48
 R13  |>>>>>   14   16   16   19   16   19   15  ---    7 |    42   40   34   38   33   33   34  ---    32
 R14  |>>>>>   41   34   64   39   22   61   33  ---   19 |    36   59   47   75   60   48   51  ---    47
 R15  | ----   10   21   16   19   17   66   20  ---   11 |    42   44   42   46   44   55   41  ---    40
 R16  |>>>>>   15   17   30   24   14   26   14  ---    9 |    36   34   39   43   37   31   36  ---    34
XR17E | ----   50   64   22   33  ---   46   32  ---   18 |    39   51   36   53  ---   48   46  ---    35
 R18E | ----   33   32   21   12   14   32    9  141    8 |    66   58   62   63   73   80   66   96    65
 R19E |>>>>>   38   41   18   12   25   35   10  ---   10 |    76   78   76   82   92   76   77  ---    78
 R20E |>>>>>   53   58   32   32   34   29   37  ---   16 |    66   74   69   89   94   90   74  ---    74
 R21E |>>>>>   38   41   23   12   20   27   16  317   10 |    58   60   62   63   73   65   63  193    62
 R22E |>>>>>   43   45   15   16   15   37   24  ---   11 |    62   63   64   65   69   74   59  ---    61
 R23E | ----   18   39   23   22   13   28   16  ---    8 |    68   75   68   76   70   76   78  ---    71
 R24E |>>>>>   31   33   33   27   25   42   37  ---   14 |    67   72   63   57   60   68   59  ---    54
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   41   39   28   23   23   38   22  240      |T   54   58   51   58   59   60   52  179    50
 WRMS |>>>>>   29   29   25   21   18   34   22  240      |NE  49   55   46   53   52   54   46  202    45
 MEDI |>>>>>   24   32   21   21   17   35   16  206      |MD  48   59   50   57   60   61   51   96    49

Table 3.1853.5  GPS week: 1853   Day: 5   MJD: 57220                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  |>>>>>   41   34   35   36   45   39   41  ---   17 |    34   66   68   81   87   66   34  ---    55
 R02  |>>>>>   13   19   16   11   18   44   14  191    8 |    40   36   47   42   43   73   27  100    39
 R03  |>>>>>   36   39   20   36   29   34   11  ---   12 |    32   32   45   80   67   44   56  ---    54
 R04  |>>>>>   13   19   18   15   13   16   16  ---    6 |    37   35   38   45   55   39   53  ---    44
 R05  |>>>>>   24   29   36   28   23   60   21  ---   14 |    38   41   23   42   40   39   27  ---    26
 R06  | ----   15   22   16   26    9   22   18  ---    8 |    23   32   40   47   31   23   18  ---    29
 R07  |>>>>>   12    8   17    8   16   27    8  644    6 |    39   37   51   43   41   36   33  401    38
 R08  |>>>>>   20   16   25   19   13   28   19  ---    9 |    38   35   48   33   28   30   32  ---    29
 R09  | ----   29   35   37   28   21   44   34  ---   14 |    47   58   51   60   52   78   48  ---    48
 R10  | ----   18   17   16   22   18   18   10  ---    8 |    44   48   47   55   50   33   45  ---    45
 R11  |>>>>>  105  108   44   15   29   46   32  ---   21 |    93   95   66   42   47   67   52  ---    46
 R12  | ----   94  104   54   15   27   46   32   96   20 |    92   95   86   67   72   80   64   93    67
 R13  |>>>>>   21   29   22   23   14   20   17  ---    8 |    39   47   42   39   35   30   30  ---    32
 R14  | ----   21   24   44   37   31   51   32  ---   16 |    27   44   37   47   43   43   41  ---    32
 R15  |>>>>>   12   15   20   20   31   27   17  ---   10 |    34   37   37   37   56   28   38  ---    36
 R16  | ----   21   19   23   31   14   40   14  ---   10 |    29   31   36   45   34   24   31  ---    30
XR17E | ----   44   61   32   43  ---   53   39  ---   21 |    40   55   38   65  ---   48   47  ---    40
 R18E | ----   47   37   42   23   30   50   13  158   15 |    93  102   96   97  107  122   94  143    95
 R19E | ----   39   33   30   14   21   54    8  ---   12 |    71   78   73   68   77   92   66  ---    70
 R20E |>>>>>   54   61   38   27   43   34   25  ---   16 |    69   80   81   94  109   78   87  ---    83
 R21E |>>>>>   38   35   26   18   28   58   61  301   18 |    64   66   67   73   82   97   67  186    64
 R22E | ----   40   37   23   15   22   28   25  ---   11 |    69   68   73   63   68   75   84  ---    69
 R23E |>>>>>   38   27   23   28   15   25   16  ---   10 |    84   90   73   84   85   77   91  ---    81
 R24E |>>>>>   32   48   49   29   27   53   31  ---   16 |    92  135  103  106  115  103  101  ---   100
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   41   43   31   24   25   40   25  339      |T   52   60   56   60   61   59   52  184    52
 WRMS |>>>>>   36   39   31   23   20   35   25  339      |NE  42   48   47   50   48   45   39  198    40
 MEDI |>>>>>   29   29   25   23   22   39   18  191      |MD  40   48   48   55   55   48   47  143    45

Table 3.1853.6  GPS week: 1853   Day: 6   MJD: 57221                            

        Weighted Average                                  Orbit Dynamics (7 days)
 PRN  |  brd  cod  cof  emx  esx  gfz  grg  iac  mcc  IGL |   cod  cof  emx  esx  gfz  grg  iac  mcc   IGL
------+---------------------------------------------------+-----------------------------------------------
 R01  |>>>>>   26   50   34   49   27   28   34  ---   15 |    53   85   71   87   78   76   65  ---    65
 R02  | ----   16   13   17   19   15   23   22  220    8 |    58   61   68   66   70   79   52  172    62
 R03  |>>>>>   32   34   19   14   19   35   19  ---   10 |    51   51   76   69   60   70   67  ---    64
 R04  |>>>>>   20   18   15   32   20   21   11  ---    9 |    55   61   67   66   74   63   69  ---    65
 R05  |>>>>>   28   18   19   33   26   54   28  ---   14 |    59   62   65   70   76   63   76  ---    66
 R06  |>>>>>   16   40   17   14   10   26   11  ---    7 |    41   55   44   58   48   45   37  ---    43
 R07  | ----   11   28   15   10    9   30    7  446    6 |    68   71   74   68   67   64   68  151    67
 R08  |>>>>>   14   17    9   14    9   27    9  ---    6 |    59   59   71   68   65   65   61  ---    63
 R09  |>>>>>   34   31   34   31   20   36   31  ---   13 |    54   58   49   57   59   54   49  ---    46
 R10  |>>>>>   28   29   26   23   15   18   15  ---    9 |    34   39   37   53   40   34   42  ---    39
 R11  |>>>>>  115  117   40   28   33   44   32  ---   22 |    98  102   63   72   72   77   59  ---    55
 R12  |>>>>>  115  114   42   16   37   53   31  104   22 |   100  100   81   68   84   77   74   64    65
 R13  | ----   20   34   16   23   16   18   12  ---    8 |    39   47   30   35   32   22   28  ---    27
 R14  | ----   28   27   41   42   34   49   32  ---   17 |    35   40   31   52   53   37   40  ---    34
 R15  |>>>>>   10   20    9   31   21   37   14  ---   10 |    37   45   40   54   40   37   38  ---    37
 R16  |>>>>>   23   21   26   22   18   22   15  ---    9 |    38   40   29   46   45   27   35  ---    34
XR17E |>>>>>   42   59   41   40  ---   73   38  ---   23 |    53   54   44   72  ---   72   59  ---    49
 R18  | ----   39   40   25   19   28   93   15   77   17 |    98  114  111  115  123  139  107  102   112
 R19E | ----   48   44   35   15   24   34   14  ---   12 |   103  121  108  127  145  152  128  ---   125
 R20  | ----   57   48   35   29   38   33   41  ---   17 |   126  149  137  146  166  147  152  ---   144
 R21  | ----   31   35   35   21   21   41   41  251   14 |    99  100  105  109  121  121   81  108   102
 R22  |>>>>>   35   48   22   15   18   31   19  ---   10 |    74   74   84   79   87   77   76  ---    78
 R23  |>>>>>   36   28   35   26   15   22   23  ---   11 |    63   67   67   66   64   69   54  ---    58
 R24  |>>>>>   35   32   55   26   22   36   32  ---   15 |    91   98   99   81   92   97   92  ---    87
------+---------------------------------------------------+-----------------------------------------------
 RMS  |>>>>>   45   46   29   26   23   39   24  256      |T   66   73   68   74   76   73   67  119    66
 WRMS |>>>>>   34   35   25   23   20   35   24  256      |NE  54   61   56   61   60   55   53  129    52
 MEDI |>>>>>   28   32   26   23   20   33   19  220      |MD  58   61   67   68   70   69   61  108    63




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