[IGSREPORT-19634] Wk 1628 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Apr 7 05:36:27 PDT 2011


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1628   (Mar 20, 2011 - Mar 26, 2011)

Contacts: J. Ray       (jim.ray at noaa.gov),
          J. Griffiths (jake.griffiths at noaa.gov)


COMBINATION STRATEGY:
---------------------

Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

Each centre satellite clock corrections are first transformed to a common 
reference. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. Ephemerides and clock corrections are then combined
as weighted averages computed over all centres. Each centre is given a
position weight and a clock weight. The position weights are computed from
each centre's absolute deviation to the unweighted average orbit after the
estimation of a 7-parameter Helmert transformation. The clock weights are
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. All the above estimations are performed using the
L1-norm robust scheme.

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data. This is primarily intended 
for testing clock solution precision as well as the orbit/clock consistency.

 Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c  [distance unit],

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility, no satellite L1/L2 delay calibration should be
applied.


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.


PRODUCTS GENERATED:
-------------------

The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite. Note that each file contains all the
satellites that appear in any of the centre ephemeris files. If a satellite or
centre was excluded from combination, a note in the REMARKS section of this
report will identify the exclusion and the reason.

  The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

  Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions.  AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 3 weeks (21 days), i.e. up to 5 days prior to
the last non-predicted day of Bulletin A.  AC LOD biases are removed and the
new AC bias-free LODs are used to compute a weighted IGS LOD which in turn
is integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as
Bulletin A fifth day prior to its last non-predicted day. Both IGS LOD and 
UT1-UTC values are printed in the IGS Final erp file.



The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

igs1628[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1628[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1628[0-6].cls  IGS GPS clock combination summary report.
igs16287.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16287.sum      Complete report.

    
REMARKS concerning the IGS Orbit Combination:                                  
---------------------------------------------

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and
    JPL. The other centres are excluded because they either provide broadcast
    clocks (NGS) or clock corrections are not provided (SIO).  The clock
    information not used is still compared to combination for completeness.  
    The value of 999999.999999 microseconds, according to the sp3 format 
    convention, is used to signify that no clock solution is available and 
    therefore must not be used.

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new solution from CNES/GRGS (GRG) is included with
    weight except for the clock and LOD combinations.

 3. The following centre clock solutions, which provide broadcast clock
    corrections, were excluded from the combination but kept in the combination
    statistics:
             -> Centre: NGS 

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  EMR   | 4 24 4 24 WTZR WTZR
                0  |  GFZ   | DAV1
                0  |  GRG   | ADIS AMC2 LPGS SANT
                0  |  JPL   | 9 25
                0  |  MIT   | 4 9 24 27 4 9 17 24 27 CAS1 DARW HYDE MAW1 MIZU PERT
                0  |  MIT   | CAS1 HYDE MAW1 MIZU PERT
                1  |  ALL   | 1
                1  |  COD   | PETS REUN
                1  |  EMR   | 24 9 24 WTZR WTZR
                1  |  ESA   | ALGO ALGO BRMU UNSA
                1  |  GFZ   | 4
                1  |  GRG   | ADIS AMC2 SANT
                1  |  MIT   | 19 24 19 24 DAV1 DAV1 MAW1 SOFI
                2  |  COD   | 26 26
                2  |  EMR   | 24 4 9 24 WTZR WTZR
                2  |  ESA   | UNSA
                2  |  GFZ   | 2 MDVJ YELL
                2  |  GRG   | ADIS SANT WTZR
                2  |  JPL   | 9 YAKT
                2  |  MIT   | 24 26 4 24 26 DAV1
                3  |  EMR   | 4 24 4 24 WTZR WTZR
                3  |  ESA   | UNSA
                3  |  GFZ   | 2 21 KOUC MDVJ PIE1
                3  |  GRG   | ADIS NRC1
                3  |  JPL   | 25
                3  |  MIT   | 4 6 9 10 21 22 24 27 4 6 9 10 21 22 24 27 PDEL PIE1
                3  |  MIT   | PTBB PDEL PIE1 PTBB
                4  |  COD   | 21 21 RAMO SOFI
                4  |  EMR   | 4 8 19 24 4 WTZR WTZR
                4  |  ESA   | FAA1 UNSA
                4  |  GFZ   | 2 21 24 25 27 MDVJ YAKT
                4  |  GRG   | LPGS
                4  |  JPL   | 25
                4  |  MIT   | 4 9 19 22 24 27 31 4 9 19 22 27 ALGO AMC2 BRMU BRUS
                4  |  MIT   | CAS1 CHUR CONZ DAEJ DARW GODE HARB HOB2 HRAO IENG
                4  |  MIT   | KOKB KOUR MAS1 MATE MAW1 MDVJ MIZU NICO NNOR NRC1
                4  |  MIT   | NTUS ONSA PDEL PERT PTBB SPT0 SYOG TIXI TLSE TOW2
                4  |  MIT   | TSKB TWTF USN3 USNO WROC WSRT YELL BAKO CAS1 DARW
                4  |  MIT   | KOUC NTUS PDEL PERT SYDN
                5  |  EMR   | 4 9 24 4 9 24 WTZR WTZR
                5  |  ESA   | MATE
                5  |  GFZ   | 2 21
                5  |  GRG   | ADIS SANT
                5  |  JPL   | 25 27 ADIS
                5  |  MIT   | 4 9 24 27 30 4 9 24 27 30 CAS1 MAW1 MAW1
                6  |  COD   | AREQ AREQ FAA1
                6  |  EMR   | 4 24 4 WTZR WTZR
                6  |  ESA   | ALRT ALRT
                6  |  GFZ   | 2 4 21 MAW1 YAKT
                6  |  GRG   | SANT
                6  |  JPL   | 4 9 25 27 ADIS PIMO
                6  |  MIT   | 4 9 24 27 4 9 27 CAS1 MAW1 BOR1 CAS1 MAW1

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets.  Note that only the largest clock offset and drift are output
    to the summary file.  However, the clock combination and the listed RMS
    include all the clock segments.  In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                4  |  MIT   | ~00:00 | ~ 0.70 ns

 6. The following orbit solutions were excluded from the combination because 
    they were biasing the weighted average (generally indicated by long arc RMS).
    They were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                0  |  GRG   |   4

 7. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) all IGS products,
    including the IGS combined orbits, are based on the IGS realization of the
    ITRF2005 reference frame (IGS05).   For more information see IGSMAIL #5447.

 8. Small rotations were applied to all the AC orbit and ERP values in order
    to align them to the IGS05 frame. These rotations were estimated in the IGS
    SINEX combination process, performed by the IGS Reference Frame Coordinator
    at the Institut Geographique National (IGN), and are based on the common
    stations between the individual AC SINEX solutions and the IGS05.snx SINEX
    frame. The estimated 7 transformations, from which only the 3 rotations are
    applied to the orbit and ERP values, are:
    
            |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |    -.3    1.0     .5      -5      4    -18     .41
       EMR  |    -.2    5.5    1.7      -3     -8     -1     .75
       ESA  |    2.9    8.4   -6.7     170    -45     14     .36
       GFZ  |   -1.2     .8    -.7      11     24    -26     .68
       GRG  |   -1.4   10.0    9.2       9     29    -84     .46
       JPL  |    2.9    3.9    3.8      12    -51      2     .42
       MIT  |    7.3   -5.9   -6.1     -17     -9    -59     .44
       NGS  |    5.2   -2.3   -2.6     -28   -110     28     .41
       SIO  |    2.7    5.5   -5.0     134   -109     17     .77


 9. Starting on 22-Oct-2000 (GPS Week 1085-0; mjd=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. 
    The navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

10. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and
    ERPs as generated by IGN. For more information see IGSMAIL #2750.
    Because of this change in alignment Table 2 has been enhanced with one 
    additional line per AC. This additional line shows the X- and Y-rotations 
    which were applied to each of the AC orbits prior to the orbit combination. 
    These rotations are based on the difference between the individual AC ERP 
    estimates and the IGS reference frame ERP product. The total rotation of
    the individual AC orbits w.r.t. the IGS combined orbit is the sum of the
    values in the two lines of Table 2 plus the reference frame rotation.

11. Starting 5-Nov-2006 (GPS Week 1400, day 0; MJD 54044) the absolute antenna
    model is introduced (IGSMAIL #5438). The antenna phase center offsets and
    phase center variations are given in the file:
        ftp://igscb.jpl.nasa.gov/pub/station/general/igs05.atx

    
ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    
      
Most combination statistics are with respect to the combined orbits and
consist of five parts. The first, 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 (table 1.1628.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1628.b).
The second part, 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 2.1628.[0-6]).
The third part, 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 3.1628.[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. The fourth part, Table 4, is a
weekly summary of the daily precise navigation summaries for centres
providing both orbit and clock solutions.  It contains weekly station RMS
w.r.t. the initial coordinates for the Latitude, Longitude and Height 
components for up to three IGS stations (table 4.1307). The fifth and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1628.0-6).

In tables 1-3, the most important statistic which is meaningful for intra
centre/satellite analysis is labeled WRMS. It is a weighted RMS where
normalized weights are based on accuracy codes given in the SP3 files, and
should not be affected by downweighted/problem satellites when acknowledged
by individual centres in their SP3 file.
                                                                               

             
Table 1: Week 1628 summary.                       (Mar 20, 2011 - Mar 26, 2011)

Table 1.1628.a   GPS week: 1628   MJD: 55640.000-55646.000

         Mean and standard deviations of transformation parameters to the 
         combined IGS 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  245|    0     0     3    56   -46     1  -.28   10    9 |    -451    -187     21     70
        |    0     0     1    10    19    16   .01           |     466     626
emr   92|    0     2     3   105   -24     9   .41   20   20 |   -1031     164     19     96
        |    1     3     1    24    30    10   .03           |     982     831
esa  136|    0     1     0  -176   -25    21   .21    8    8 |   -1340     -60     15    104
        |    0     0     1    15    16    18   .03           |     747    1233
gfz  194|    0    -1    -3    43   -80   -11  -.20   11   11 |      17     172     22    100
        |    1     1     1    36   103    11   .02           |     417     663
grg  133|    0     0     2    29   -78   -21   .58   19   16 |    -145      96     54    222
        |    1     1     1    32    30    13   .07           |     215     236
igr  n/a|    0     0    -1    65   -26    -9  -.05    5    5 |   -4546     -14     19     64
        |    0     0     0    22    37    31   .02           |     817     717
jpl  121|    0    -1     5    11    48    27   .45   23   22 |    1334     190     21     96
        |    1     1     0    19    26    36   .04           |    1069     689
mit  258|    1    -3    -6    99   -41   -24  -.31   15   13 |    -606     650     26    162
        |    1     0     1    28    35     9   .05           |    1192    1574
ngs  212|   -1    -1    -4   122   150   -20  -.27   12    9 |   -7850   -7207   2361   4284
        |    0     1     0    23    61    17   .05           |   19447   18611
sio  255|    0     1     9  -201   177    18   .03   20   21 |     ---     ---    ---    ---
        |    0     1     1    37    43    18   .05           |     ---     ---


Table 1.1628.b   GPS week : 1628   MJD: 55640.000-55646.000   

         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
------+------------------------------------+------------------------------------------
   1  |    0   56    0    0    0    0    0 |
   2  |    5    5    5    4    5    5    6 |
   3  |    4    4    4    4    4    4    4 |
   4  |    6    5    5    5    5    6    7 |
   5  |    5    5    4    4    5    5    5 |
   6  |    4    4    4    4    4    4    4 |
   7  |    4    4    6    4    4    4    5 |
   8  |    5    6    6    6    6    6    6 |
   9  |    7    7    7    7    7    7    7 |
  10  |    4    4    4    3    4    4    5 |
  11  |    5    5    5    5    5    5    5 |
  12  |    5    5    5    5    5    5    5 |
  13  |    5    5    5    4    5    5    5 |
  14  |    5    5    5    5    5    5    5 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    5    5    5    5    5 |
  17  |    6    5    5    5    5    5    5 |
  18  |    6    6    6    6    6    6    6 |
  19  |    5    5    6    5    6    5    5 |
  20  |    5    5    5    5    5    5    6 |
  21  |    5    5    4    5    5    4    5 |
  22  |    6    6    6    6    6    6    6 |
  23  |    6    5    5    5    5    5    5 |
  24  |    7    6    6    5    5    5    5 |
  25  |    5    5   11    5    5    5    5 |
  26  |    4    4    4    4    4    4    4 |
  27  |    6    6    7    6    7    6    7 |
  28  |    5    5    5    5    5    6    6 |
  29  |    5    5    5    5    5    5    5 |
  30  |    4    4    4    4    4    3    4 |
  31  |    5    5    5    4    5    4    5 |
  32  |    5    5    5    5    5    4    4 |



Table 2: Daily transformation of each centre to the combined IGS 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 2.1628.0   GPS week: 1628   Day: 0   MJD: 55640.000                            

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  245|    0     1     2    46   -20   -15  -.29    9    8 |    -348    -248     18     73
        |                    105     4                       |
emr   92|    0     6     6    64    -3    11   .43   20   20 |   -1821     726     23     89
        |                    -13    -2                       |
esa  136|    0     1     1  -200   -14    44   .25   10    9 |   -1757   -1244     19    115
        |                     63    89                       |
gfz  194|    1    -2    -4    90  -217   -25  -.18   14   12 |     202     -69     24     96
        |                    -27    60                       |
grg  133|    0    -1     0    -7   -90   -35   .62   30   17 |     -33     144     52    194
        |                    115   -41                       |
igr  n/a|    0     0     0    54    15   -14  -.04    7    7 |   -4591      34     19     56
        |                    -20    54                       |
jpl  121|    0     0     6   -26    63    20   .45   23   22 |     747     151     22     82
        |                     -6    19                       |
mit  258|    0    -3    -8   135   -52   -17  -.27   14   11 |    -114      84     37    146
        |                     16    17                       |
ngs  212|    0    -2    -4    77   205    -4  -.26   12    8 |    -348    -294   2437   4039
        |                    -43  -103                       |
sio  255|   -1     0     7  -156   154    32   .08   21   20 |     ---     ---    ---    ---
        |                     63   -59                       |

Table 2.1628.1   GPS week: 1628   Day: 1   MJD: 55641.000                            

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  245|    0     0     1    69   -34    29  -.29   11   10 |    -180    -485     29     78
        |                     66    36                       |
emr   92|    3     4     5   127   -23    -3   .43   20   20 |   -1842     548     20     80
        |                    -52    42                       |
esa  136|    0     1     0  -161   -32    21   .17    8    8 |    -923    -368     18    107
        |                     44    83                       |
gfz  194|    0    -1    -3   -14   -90    -3  -.20   10    9 |     448    -475     22    100
        |                    -71    41                       |
grg  133|    0     0     3    36   -46   -17   .57   16   15 |     -21    -164     45    179
        |                     39   -62                       |
igr  n/a|    0    -1    -1    41   -45     4  -.09    6    5 |   -5207     154     20     58
        |                    -57    96                       |
jpl  121|    2     0     5    34    62    -6   .45   23   22 |     348     190     23    100
        |                     -7    28                       |
mit  258|    0    -3    -8    95   -22   -20  -.25   14   12 |      13    -215     31    149
        |                     17    18                       |
ngs  212|   -1     0    -3   137   157   -45  -.26   13   10 |    -159    -686   2067   4225
        |                      4   -32                       |
sio  255|    0     1     9  -185   204    32   .07   20   20 |     ---     ---    ---    ---
        |                     72   -71                       |

Table 2.1628.2   GPS week: 1628   Day: 2   MJD: 55642.000                            

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  245|    1     0     3    52   -52    -8  -.27   10    9 |     -64    -766     26     67
        |                     95    40                       |
emr   92|    2     5     4   116   -28    12   .45   20   20 |    -752      -2     18     99
        |                    -67    32                       |
esa  136|    0     2    -1  -176   -38    36   .17    8    8 |   -2463     488     16    109
        |                     46   109                       |
gfz  194|   -2    -2    -5    56   -33     9  -.16   11   11 |       6     112     25    103
        |                    -79    50                       |
grg  133|    2     0     1    23   -79   -26   .49   18   17 |     -59     256     49    210
        |                     55   -36                       |
igr  n/a|    0     0    -2    93   -64    -7  -.03    6    6 |   -4373    -194     23     61
        |                    -63    99                       |
jpl  121|    3     0     6    11    39    17   .48   21   21 |    1207      96     19     88
        |                     11    -4                       |
mit  258|    0    -4    -5   115    -7   -24  -.26   15   13 |   -3250    4178     29    150
        |                     17    -1                       |
ngs  212|    0    -3    -4   117   107   -38  -.33   13   10 |  -51943  -49392   2294   4132
        |                    -84   127                       |
sio  255|    0     0    11  -187   224    -3   .09   20   20 |     ---     ---    ---    ---
        |                     96   -72                       |

Table 2.1628.3   GPS week: 1628   Day: 3   MJD: 55643.000                            

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  245|    0     0     1    51   -56     0  -.29   10    9 |   -1373     869     21     77
        |                     91    -7                       |
emr   92|    0     4     4    95   -46    14   .41   19   19 |   -2093    1023     21    106
        |                    -34    25                       |
esa  136|    0     0     0  -191   -10    -3   .25    7    7 |    -709   -1607     14    103
        |                     62    62                       |
gfz  194|    0     0    -2    62    16   -12  -.22   11   10 |    -716     748     22     91
        |                    -13    14                       |
grg  133|    0     0     2    18   -69    -2   .52   17   16 |    -608      43     56    225
        |                     70   -17                       |
igr  n/a|    0     0     0    78   -12   -15  -.04    5    5 |   -5786     866     17     61
        |                    -50    74                       |
jpl  121|    1    -2     4    14    81   104   .48   21   21 |     105    1033     22     91
        |                     44   -30                       |
mit  258|    1    -2    -5   133   -73    -9  -.33   14   11 |    -696     315     25    138
        |                      9    14                       |
ngs  212|    0     0    -3   139    92   -30  -.33   12    9 |   -1368     814   2475   4166
        |                    -58   100                       |
sio  255|   -1     3    10  -160   140    26   .04   20   21 |     ---     ---    ---    ---
        |                     88   -51                       |

Table 2.1628.4   GPS week: 1628   Day: 4   MJD: 55644.000                            

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  245|    1     0     3    73   -80    19  -.26   11   10 |    -431    -759     19     79
        |                     34   112                       |
emr   92|    0    -1     2   113   -70    27   .38   21   21 |     441   -1167     19    121
        |                    -77    48                       |
esa  136|    0     0     0  -171   -53    -3   .23    8    8 |   -2034    2122     13     96
        |                     -3   100                       |
gfz  194|    0    -1    -3    48    68   -14  -.20   11   11 |    -285    1312     21    113
        |                    -45    36                       |
grg  133|    0     0     3    32  -110   -36   .58   18   17 |    -221     470     54    297
        |                     16    45                       |
igr  n/a|    0     0    -1    92   -59   -50  -.03    5    6 |   -3575   -1009     16     94
        |                    -50    83                       |
jpl  121|    0    -3     4     2    -2    39   .45   24   23 |    2414    -578     22    108
        |                     19    48                       |
mit  258|    2    -3    -6    68     8   -32  -.35   16   14 |    -210     352     22    290
        |                     22    -2                       |
ngs  212|   -1     1    -4   147    69   -20  -.24   12    8 |    -343    -924   2585   4547
        |                    -58   109                       |
sio  255|    0     2    10  -244   235    12  -.00   20   29 |     ---     ---    ---    ---
        |                    117   -77                       |

Table 2.1628.5   GPS week: 1628   Day: 5   MJD: 55645.000                            

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  245|    0     1     3    50   -37    -2  -.28   10   10 |     -56    -401     20     61
        |                     67    -4                       |
emr   92|   -1    -2     3   134   -28     7   .36   20   20 |   -1176     754     16     91
        |                    -90    18                       |
esa  136|    0     2    -2  -179   -13    29   .22    9    9 |   -1041     345     15    103
        |                     12    72                       |
gfz  194|    1     0    -1    58  -164   -18  -.23   11   10 |     461    -557     25     94
        |                    -52    16                       |
grg  133|    0     1     1    11   -36   -25   .61   15   14 |     -48    -213     62    219
        |                     28  -117                       |
igr  n/a|    0     0    -1    62    28   -31  -.06    5    5 |   -4758     819     18     63
        |                    -87    44                       |
jpl  121|   -1    -1     4    22    43     3   .49   23   23 |    1507    1099     21    101
        |                     34    47                       |
mit  258|    2    -3    -7    77   -87   -30  -.35   16   14 |       2    -302     20    131
        |                     17     5                       |
ngs  212|   -1    -2    -4   108   222    -1  -.25   13    9 |     -99    -400   2504   4479
        |                   -128   -58                       |
sio  255|    0     2     9  -232   123    37  -.00   19   18 |     ---     ---    ---    ---
        |                    123   -36                       |

Table 2.1628.6   GPS week: 1628   Day: 6   MJD: 55646.000                            

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  245|    0     0     5    52   -42   -11  -.27   11   10 |    -705     478     18     59
        |                     52    43                       |
emr   92|    0     3     0    83    26     0   .41   21   21 |      26    -732     16     91
        |                    -13   -47                       |
esa  136|    2     2    -2  -154   -17    24   .20    9    8 |    -458    -157     12     96
        |                     33    57                       |
gfz  194|    0     0    -2     4  -144   -14  -.18   11   10 |       4     135     21    103
        |                    -68    27                       |
grg  133|    0     1     4    94  -115    -3   .69   18   17 |     -26     141     66    230
        |                    -42    -6                       |
igr  n/a|    0     0    -2    37   -49    49  -.04    5    4 |   -3538    -769     20     56
        |                    -29   103                       |
jpl  121|    0     0     4    20    51    10   .38   23   23 |    3014    -656     21    102
        |                     47    -5                       |
mit  258|    2    -2    -6    70   -52   -36  -.38   18   14 |       8     141     19    130
        |                      3    11                       |
ngs  212|   -1    -3    -5   126   202    -4  -.20   13    9 |    -691     433   2165   4401
        |                    -65    10                       |
sio  255|   -1     2     9  -242   157    -6  -.05   21   19 |     ---     ---    ---    ---
        |                    119   -52                       |

       
       
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 IGS column gives resulting satellite accuracy measures found in
         SP3 header. The last IGS column gives the RMS fit of the IGS 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 IGS 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 3.1628.0   GPS week: 1628   Day: 0   MJD: 55640.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    5  ---  ---  ---  ---  254  ---  ---  ---  ---    0 |    66  ---  ---  ---  ---  206  ---  ---  ---  ---    63
   2E |    7   18    5   11   24    4   24   11   11   10    4 |    21   33   29   22   29   23   32   21   21   25    24
   3  |    6   11    7   11   14   12   18   16    8   13    3 |    18   26   26   23   32   23   25   24   24   27    23
   4E |   11   23   23   13  132    6   17   12   16   10    6 |   135  133  132  138  137  134  128  138  136  130   134
   5  |    7   18    6   15   16    5   25    8   13   20    4 |    19   31   26   29   34   22   33   24   25   21    23
   6  |    6   14    7    9   12   10   17   14    8   15    3 |    19   26   26   22   30   23   24   23   24   25    22
   7E |    6   16    9   17   14    4   22    9   11   10    4 |    19   26   22   17   26   19   28   19   22   18    18
   8  |   14   21    8   16   20    8   17   16   10   21    5 |    55   57   56   54   50   53   57   58   60   56    56
   9E |   19   19   11   15   18    6   18   28   22   19    6 |    29   37   33   37   37   34   37   51   44   33    33
  10  |    8   13    5   11   13    4   14   15   11   20    4 |    20   21   28   28   31   25   25   32   24   22    22
  11E |    7   17   12   11   17    7   23   16    6   13    4 |    21   30   28   27   34   24   36   29   28   25    27
  12  |    9   22    5    7   21    6   21   14   10   24    4 |    12   26   20   18   26   18   27   20   19   23    17
  13  |    6   18    7   13   20    5   27   18   11   16    5 |    15   26   20   22   35   18   30   24   19   17    15
  14  |    9   22    8   11   16    6   29   17   10   18    5 |    25   29   30   34   39   26   29   33   25   22    27
  15  |   10   20   10   16   19    6   25    9   11   27    5 |    15   28   25   24   35   20   29   24   17   21    19
  16  |    8   21    9   13   12    6   29   11    7   28    5 |    16   28   23   22   26   19   29   18   23   19    19
  17  |    9   23   15   14   20    5   28   12   12   18    5 |    25   34   27   29   27   22   35   28   23   25    23
  18  |   10   23   10   15   13    6   32   10   10   34    5 |    20   33   27   27   29   24   35   27   27   33    24
  19  |    6   21   10   12   16    8   28   10    8   22    4 |    12   29   16   14   24   18   34   16   18   19    16
  20  |    8   19    8   12   15    6   24   14   13   19    4 |    22   31   27   35   30   23   31   25   27   24    24
  21E |    8   18    7   11   33    5   22   12   13   12    5 |    15   28   23   18   42   20   28   16   18   18    19
  22  |    9   21    6   11   14    7   28    9    7   42    5 |    27   35   35   35   39   29   34   36   29   37    31
  23  |    7   24    9   13   17    4   30   18   10   23    5 |    31   36   33   37   37   30   37   31   31   25    28
  24E |   16   25   14   19   29   14   19   18   16   20    6 |   133  132  131  125  131  133  132  124  125  137   128
 X25  |   10   16    3   11   17    6   25   20   11  ---    5 |    36   38   35   33   51   35   47   49   38  ---    38
  26  |    7   19    6   20   11    6   15   11    6   20    4 |    14   21   22   23   26   20   25   22   20   18    18
  27E |   13   19   10   15   20    6   17   25   20   19    6 |    17   27   27   28   37   25   30   39   35   31    25
  28  |    6   19    9   14   16    6   23   13   10   27    5 |    22   30   28   30   33   24   29   27   28   29    26
  29  |    9   23    7    9   18    5   26   15   10   21    5 |    26   38   27   30   27   27   37   36   31   36    28
  30  |    7   10    7    9   14    5   18   10    7   23    3 |    21   25   27   23   31   23   23   25   27   29    23
  31E |   10   20    7   11   22    7   24   10   16   14    5 |    18   30   18   10   28   21   30   20   18   19    18
  32  |    9   21    8   24   17    6   16   13   13   25    5 |    19   24   25   34   33   24   24   28   25   24    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   20   10   14   30    7   23   14   12   21      |T   30   37   33   33   39   37   38   35   33   32    32
 WRMS |    8   20    9   12   17    7   22   11    8   20      |NE  22   29   26   27   32   31   30   27   24   24    25
 MEDI |    8   19    8   13   17    6   23   13   11   20      |MD  20   30   27   28   33   23   30   27   25   25    23

Table 3.1628.1   GPS week: 1628   Day: 1   MJD: 55641.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   47  ---  ---  ---  ---  373  ---   67  ---  ---   56 |    53  ---  ---  ---  ---  334  ---    6  ---  ---    65
   2E |   10   17    6    8   23    4   24   11   13    9    4 |    31   33   33   26   35   29   34   30   32   31    28
   3  |    9   13    5    8   13    4   16   13   10   13    3 |    21   27   25   20   32   21   27   21   21   25    21
   4E |   19   19   15    8   17    7   18   12   13   11    5 |   128  122  122  128  111  124  119  127  129  118   123
   5  |    9   18    6   10   17    5   23    8   16   18    4 |    24   35   27   22   39   24   37   28   28   23    24
   6  |   10   13    5    7   12    5   14   10   11   12    3 |    20   27   24   20   30   18   24   19   20   22    20
   7E |    9   18    7    9   14    3   20   12   17   10    4 |    27   28   23   21   29   21   27   27   34   21    21
   8E |   16   25    7   10   21    5   12   16   16   22    5 |    53   55   50   52   46   49   45   61   60   51    50
   9E |   18   19   11   11   16    5   17   27   26   19    6 |    25   37   30   32   31   31   34   47   45   32    31
  10  |   11   12    8    5   12    4   10   13    8   15    3 |    25   25   28   24   31   24   24   32   27   28    24
  11E |    7   18    6    7   20    6   24   24   14   14    5 |    21   28   21   21   32   16   28   26   23   19    19
  12  |   11   22    7    6   16    8   26   13   13   23    5 |    17   29   23   20   27   20   27   22   16   22    18
  13  |    6   17    5   10   19    6   24   17   10   14    4 |    20   28   21   17   37   19   31   24   21   20    18
  14  |   11   20    8    7   16    4   28   14   10   19    4 |    22   28   25   26   36   23   29   26   27   21    24
  15  |   10   21    9   11   18    5   26    8    8   24    5 |    21   31   25   24   36   23   31   23   27   22    23
  16  |    8   22    6   11   14    5   25   11   13   28    5 |    17   24   17   19   25   17   27   14   18   16    15
  17  |    9   23    8   10   17    6   24   12   12   19    5 |    28   32   23   25   27   23   32   25   23   23    22
  18  |   10   20    8   12   13    6   29   12   10   36    5 |    19   29   21   24   25   21   31   22   23   31    20
  19  |    9   23   10   10   17    6   29   12   15   22    5 |    17   29   17   17   26   15   29   16   23   18    15
  20  |   10   24   10   13   13    6   27   12   11   18    5 |    21   35   30   26   29   22   31   25   20   22    22
  21E |   10   21    6    9   21    5   23   12   10   13    4 |    30   33   30   23   35   27   36   29   28   26    25
  22  |   12   20   10   10   16    5   28    8   10   42    6 |    22   33   25   26   33   24   33   26   25   33    23
  23  |    9   22    5   12   14    5   28   11    9   18    4 |    27   38   29   26   38   29   38   30   29   28    27
  24E |   20   19    9   14   19   10   21   18   12   21    5 |   119  116  116  116  120  115  122  114  116  125   118
 X25  |    8   18    4    8   15    6  ---   16   13  ---    4 |    33   31   28   24   41   26  ---   38   33  ---    30
  26  |    7   14    5    9   11    5   16   12   11   15    3 |    19   23   20   16   25   16   22   18   17   20    16
  27E |   10   22    9    9   17    4   16   24   23   19    5 |    17   28   23   20   30   22   27   34   34   31    22
  28  |    9   21    7   10   13    5   21   15   14   26    5 |    23   30   23   25   29   21   29   26   21   28    22
  29  |    9   24    7    9   15    4   28   16   11   23    5 |    26   30   22   22   23   22   32   28   26   28    22
  30  |    7   13    5    9   12    5   16   11   10   16    3 |    23   21   23   20   29   19   25   21   22   26    20
  31E |    9   23    9    9   16    6   25   12   11   13    4 |    18   27   18   11   32   13   26   15   20   16    15
  32  |   11   21    6   12   14    5   23   18   12   25    5 |    20   24   26   26   27   23   25   30   20   27    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   20    8   10   16    6   23   14   13   20      |T   30   36   31   29   36   38   36   32   32   31    30
 WRMS |   10   20    8    9   15    5   22   12   10   20      |NE  23   29   23   22   30   35   29   23   23   24    23
 MEDI |   10   20    7    9   16    5   23   12   12   18      |MD  22   29   25   24   31   22   29   26   25   25    22

Table 3.1628.2   GPS week: 1628   Day: 2   MJD: 55642.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6  ---  ---  ---  ---  487  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---  419  ---  ---  ---  ---    36
   2E |   10   20    8    8   23    6   21   14   12    9    4 |    28   35   31   27   33   27   32   31   26   29    27
   3  |    8   13    6    8   14    5   13   16   11   10    3 |    22   26   27   26   32   22   28   24   22   26    23
   4E |   16   16    9   10   18    6   17   12   14   12    4 |   116  110  109  115  112  111  105  116  116  106   112
   5  |    9   17    8   10   16    6   21    8   12   17    4 |    23   36   28   27   39   24   35   27   22   24    25
   6  |    7   13    8    8   12    4   13   14   12   13    3 |    22   28   29   25   32   22   27   24   20   23    23
   7E |    9   19    8   16   33    6   21   11   17   13    5 |    22   27   22   26   40   20   28   23   21   20    19
   8E |   16   24   12   15   21    7   17   13   18   28    6 |    44   45   45   52   41   42   38   49   46   40    42
   9E |   17   18   10   11   11    4   15   31   27   17    6 |    23   35   31   29   34   28   34   43   37   30    28
  10  |   10   11    7   14   14    4   10   12   10   10    4 |    27   26   29   28   35   23   28   30   23   21    26
  11E |    7   17    9    8   20    6   21   18    9   15    4 |    19   26   22   25   29   19   25   26   20   20    20
  12  |   10   21    8   13   14    8   22   10   14   24    5 |    15   27   16   22   28   18   25   18   18   21    17
  13  |    9   23    7   11   22    6   25   17   16   12    5 |    21   31   24   27   38   22   32   28   26   20    22
  14  |   10   22    6    9   18    5   24   14    9   18    4 |    25   31   27   30   37   25   29   27   19   20    25
  15  |   11   21    8   11   17    4   26   11    9   22    5 |    16   31   23   22   35   19   30   18   18   12    19
  16  |    8   20    7    7   17    5   24   11   14   27    5 |    17   25   18   18   27   14   27   15   19   18    15
  17  |    9   23    9   10   20    6   23   11   13   19    5 |    26   32   20   27   21   23   31   22   22   21    21
  18  |    8   21    9   12   15    4   26   13   14   36    5 |    20   32   24   28   29   21   31   20   23   30    22
  19  |    8   27   12   10   17    4   30   14   10   19    5 |    19   31   17   22   26   17   33   19   20   16    17
  20  |   10   23    8   12   17    6   25   14    9   19    5 |    22   36   28   33   31   25   33   28   24   26    25
  21E |    9   16    7   10   14    4   20   11    9   10    4 |    24   35   35   33   35   29   34   27   26   27    29
  22  |    8   20    9    8   18    5   27   10   13   41    6 |    28   35   31   30   38   27   36   29   27   32    28
  23  |    9   28    6   11   19    4   29   15   12   16    5 |    27   40   31   32   39   27   36   31   28   24    28
  24E |   18   19    8   15   23   10   16   17   13   19    5 |    81   79   84   84   87   81   86   81   81   90    84
 X25  |   12  ---  ---  ---   29   30  ---   21   18  ---   11 |    34  ---  ---  ---   49   37  ---   38   41  ---    31
  26  |    9   11    6   10   16    8   14   14    9   13    3 |    16   21   18   21   29   17   22   20   18   19    16
 X27E |   11   21    9   10   15    4  ---   28   25   17    6 |    17   31   24   22   33   20  ---   32   32   26    22
  28  |    9   23    8   13   16    7   22   12   14   28    5 |    23   29   25   26   31   22   29   27   23   23    23
  29  |    9   24    7   12   14    4   24   12   11   19    4 |    25   32   18   20   19   19   30   23   21   20    19
  30  |    7   15    6    8   15    5   14   13   13   13    3 |    20   24   21   18   30   17   19   20   22   25    17
  31E |    8   25    8   12   19    5   25   16   11   15    5 |    22   33   23   20   33   19   32   21   19   18    21
  32  |   12   20    8    8   17    7   15   19   10   22    5 |    23   27   27   29   31   26   30   38   20   33    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    8   11   18    6   21   15   13   20      |T   28   35   30   31   37   40   34   31   29   28    28
 WRMS |    9   20    8   11   17    6   21   13   10   20      |NE  23   30   24   25   32   40   29   25   22   22    22
 MEDI |    9   20    8   10   17    5   21   14   12   17      |MD  23   31   25   27   33   22   31   27   22   23    23

Table 3.1628.3   GPS week: 1628   Day: 3   MJD: 55643.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6  ---  ---  ---  ---  287  ---  ---  ---  ---    0 |    36  ---  ---  ---  ---  328  ---  ---  ---  ---    34
   2E |    7   20    5    8   18    3   23   13    6   11    4 |    27   33   32   25   31   27   33   31   27   32    28
   3  |   10   14    4    9   17    4   16   12   12   12    3 |    25   30   32   29   37   29   29   30   28   33    28
   4E |   15   20   10    9   17    7   16   12   17   13    5 |   109  105  101  109   90  105  101  112  112  100   105
   5  |    6   18    5   11   17    3   22    9    9   18    4 |    28   38   32   32   37   28   38   29   25   29    29
   6  |    8   14    5    6   14    3   16   11    7   10    3 |    24   32   32   27   36   27   27   29   26   30    27
   7E |    8   17    7   10   14    5   18    9   10    8    3 |    26   31   24   25   32   23   25   25   22   24    22
   8E |   17   24    9   12   17    5   17   13   16   23    5 |    44   50   45   45   42   42   38   50   42   43    43
   9E |   18   18    9   13   13    5   17   32   24   12    6 |    27   36   31   34   36   31   34   48   40   33    31
  10  |    8   14    4    9   13    3   12   10   11    9    3 |    32   32   33   36   36   30   27   34   26   29    30
  11E |    8   18    7    8   16    5   22   17    9   18    4 |    22   30   26   24   32   21   28   30   26   22    23
  12  |   11   25    5   11   13    7   26    8   15   23    5 |    24   31   28   28   31   25   27   26   23   26    25
  13  |    7   17    5   12   21    8   24   10   10   10    4 |    28   34   25   28   37   25   35   31   27   29    25
  14  |   10   22    5   10   17    3   27   12   11   18    4 |    30   43   35   33   41   29   35   36   31   28    32
  15  |   12   24    7   12   21    5   25   13    9   23    5 |    24   34   29   30   38   28   34   29   27   25    26
  16  |    7   24    7    9   16    4   28    9   10   27    5 |    23   32   27   24   30   24   32   24   23   27    24
  17  |    9   20    7   12   17    5   23    9   11   18    4 |    35   38   33   34   31   32   37   33   35   34    32
  18  |   10   20    7   17   15    4   26    9    9   35    5 |    21   31   25   30   27   21   31   24   20   31    22
  19  |    7   23    9   11   16    5   28   13   11   20    5 |    25   35   28   25   30   25   36   27   27   24    25
  20  |    9   22    8   16   15    5   23   14    8   26    5 |    24   35   31   31   30   26   33   31   22   32    26
  21E |    7   18    6   11   26    8   21   11   11   11    4 |    25   35   34   32   35   30   31   29   30   28    28
  22  |    9   19    6   10   16    4   26    7   11   42    5 |    30   37   33   33   39   29   35   34   29   37    31
  23  |    9   24    6   10   17    5   27   21    9   18    5 |    34   41   34   36   40   32   41   43   25   38    32
  24E |   14   16    5   14   17    6   17   11   12   16    4 |   117  120  117  115  121  114  120  114  113  122   116
 X25  |    9   30    6   10   16    5   26    9    9  ---    5 |    36   56   46   44   42   39   39   38   38  ---    38
  26  |    5    9    6    6   15    5   14   13   11   18    3 |    24   24   24   25   30   22   26   29   21   26    23
  27E |   11   17   10   11   19    6   14   29   20   14    5 |    24   30   31   27   36   27   32   40   31   32    27
  28  |    8   23    7   14   18    5   22   12   13   28    5 |    33   39   35   37   36   34   34   39   38   35    35
  29  |    8   24    5   12   13    4   24   12   11   20    4 |    38   44   37   36   36   36   40   40   39   39    36
  30  |    7   12    6    9   18    4   15    8    7   12    3 |    26   29   31   28   34   26   26   27   25   32    27
  31E |    8   21    6   11   21    3   20    7   11   12    4 |    24   34   27   21   35   23   31   26   23   21    23
  32  |   10   18    7   10   15    5   20   17    9   21    4 |    31   33   35   30   34   28   34   39   26   36    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19    7   11   17    5   21   14   12   20      |T   33   40   36   35   39   42   37   37   33   35    33
 WRMS |    9   19    7   10   16    5   21   11    9   21      |NE  28   35   31   31   34   41   33   32   27   31    29
 MEDI |    8   20    6   11   17    5   22   12   11   18      |MD  27   34   32   30   36   28   34   31   27   31    28

Table 3.1628.4   GPS week: 1628   Day: 4   MJD: 55644.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    8  ---  ---  ---  ---  344  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---  328  ---  ---  ---  ---    39
   2E |    9   22    8   12   17    6   27   20    7   11    5 |    29   37   36   25   34   31   37   29   28   33    31
   3  |    9   14    3    8   15    5   16   15    9   10    3 |    26   34   31   26   37   28   31   28   26   32    28
   4E |   11   24    9   12   18    6   17   17   17   17    5 |   116  114  109  112  104  110  106  118  114  104   112
   5  |    7   22    6   14   13    5   29   17   15   17    5 |    33   44   37   34   42   34   45   33   33   33    34
   6  |    8   16    3    7   14    6   17   16    7    8    3 |    27   35   31   26   37   29   31   30   25   31    28
   7E |    8   20    7   12   11    4   23   12    9   11    4 |    24   32   23   27   34   26   33   29   27   24    24
   8E |   17   24   10   14   20    5   20   15   17   23    6 |    35   42   37   34   35   35   34   41   40   32    35
   9E |   17   19   11   12   24    5   18   31   22   15    6 |    25   37   34   32   36   33   35   48   44   29    31
  10  |    8   11    5   10   14    4   16   14   11   13    3 |    24   27   29   27   32   27   28   29   24   24    25
  11E |   10   17    8    9   19    5   24   19    9   13    4 |    18   25   22   23   30   22   30   26   23   19    20
  12  |    7   24    7    9   19    6   24   16   14   25    5 |    25   35   26   23   36   29   33   28   30   28    27
  13  |    9   21    6   12   19    6   26   16    7   14    4 |    26   31   31   26   41   27   36   28   24   25    26
  14  |    9   23   12   10   17    4   29   16   10   21    5 |    33   40   40   35   43   36   40   38   34   30    35
  15  |   10   23    9   10   19    5   29   11    6   21    5 |    28   37   33   29   41   31   36   31   27   27    28
  16  |   11   24    8   10   14    7   28   11   11   27    5 |    23   32   31   25   33   26   34   24   22   26    25
  17  |   11   22   12   17   16    5   24   12   10   19    5 |    35   37   36   31   31   32   37   33   33   31    31
  18  |   10   22    8   12   18    5   29   11    6   33    5 |    24   34   26   27   32   26   36   26   23   33    24
  19  |    9   24   10   10   16    6   34   14   15   17    5 |    24   36   25   22   33   25   39   26   30   24    24
  20  |   12   22    6   17   18    5   26   12    8   23    5 |    25   37   35   34   34   30   39   31   29   34    30
  21E |   10   22    8   10   21    6   29   12    8   12    4 |    28   38   33   29   42   32   42   31   28   32    30
  22  |    9   21    8   10   19    7   27   16   10   40    6 |    32   41   32   32   45   33   38   35   31   37    32
  23  |   11   23    6   12   18    6   27   16    8   21    5 |    34   38   37   32   43   33   46   38   30   28    33
  24E |   14   13    7   10   18    6   17   15   11   15    4 |    80   84   84   79   88   80   85   76   75   84    79
 X25  |    9   17    7   10   17    5   26   13    7  ---    4 |    34   41   41   36   47   36   46   37   32  ---    37
  26  |    9   13    5    7   13    6   19   15   12   15    4 |    23   29   27   25   32   26   29   26   29   26    25
  27E |   11   18   13   11   29    5   16   29   23   16    6 |    24   33   33   27   40   29   32   40   37   28    28
  28  |   10   21    6   13   16    5   26   13   14   29    5 |    31   35   31   29   36   31   35   34   35   34    31
  29  |    7   23    7   13   16    4   27   12   14   23    5 |    29   39   26   32   33   32   42   33   34   30    28
  30  |    9   12    5   10   16    8   18    9   12   14    3 |    25   30   32   27   38   28   29   28   27   33    29
  31E |   10   28    9   11   22    5   19   10   10   12    5 |    26   41   31   25   42   27   35   24   22   26    29
  32  |   14   22    6   11   18    4   18   15    6   19    4 |    25   28   32   23   35   29   34   29   28   27    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   21    8   11   18    5   24   16   12   20      |T   32   39   35   32   40   43   39   35   33   33    33
 WRMS |   10   21    8   11   17    6   23   14    8   29      |NE  28   35   31   28   37   43   36   30   28   29    29
 MEDI |    9   22    7   11   18    5   24   15   10   17      |MD  26   37   32   27   36   30   36   31   29   30    29

Table 3.1628.5   GPS week: 1628   Day: 5   MJD: 55645.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6  ---  ---  ---  ---  250  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---  205  ---  ---  ---  ---    37
   2E |    9   19    8    8   18    3   30   27   11   11    5 |    20   29   27   24   29   23   32   28   22   26    23
   3  |   10   13    7   13   13    5   19   15   11   12    4 |    17   25   22   22   24   21   24   23   20   25    19
   4E |   11   22   13   11   17    5   16   21   21   17    5 |   114  113  107  112   96  112  106  124  118  106   111
   5  |    7   21    7   10   14    6   26   18   12   14    4 |    20   34   23   23   35   22   36   22   18   20    20
   6  |    9   13    6   11   12    5   17   16   11    9    4 |    17   23   21   22   22   20   24   23   20   22    18
   7E |    6   18    8   14   12    4   22   12    9    9    4 |    16   24   16   16   21   17   24   17   18   16    14
   8E |   17   23   11   13   14    4   20   20   17   22    6 |    37   41   34   37   28   34   34   45   40   33    34
   9E |   13   22   14   12   16    6   18   29   26   14    6 |    13   26   20   20   24   17   26   40   36   20    18
  10  |    8   12    6    9   13    4   15   13   12   11    3 |    18   20   23   19   24   20   19   21   23   21    18
  11E |   11   18   10   11   17    5   20   16   14   19    5 |    11   25   19   18   25   17   23   21   20   18    14
  12  |   10   23    5   10   14    6   22   13   13   24    5 |    16   26   19   18   22   19   26   19   19   16    16
  13  |    8   18    7   10   20    5   23   17   15   13    5 |    11   26   14   15   34   12   30   17   13   17    11
  14  |    9   24   10    9   14    5   29   15    6   18    5 |    22   29   24   22   33   22   30   27   23   17    22
  15  |   11   21   10   13   18    5   26   10    8   21    5 |    13   27   23   20   34   19   32   20   20   17    18
  16  |    8   23    8   12   11    5   28   11   10   28    5 |    17   26   18   18   19   19   29   16   23   17    15
  17  |    9   22    9   15   16    4   22   13    9   20    5 |    28   29   23   28   20   25   27   28   27   31    23
  18  |    8   22   11   14   13    5   32   13    6   31    5 |    16   28   20   22   24   19   31   20   19   31    17
  19  |   10   24    9   13   12    5   31   13    9   17    5 |    17   31   20   19   23   21   34   20   21   19    18
  20  |   10   22    9    9   13    4   21   12   14   25    5 |    15   27   20   21   25   17   27   19   21   22    15
  21E |   10   15    8   10   17    4   27   11    9   10    4 |    21   28   30   25   33   27   33   26   28   28    26
  22  |    9   22   10   10   16    8   29   18   10   39    6 |    22   33   26   24   34   25   34   29   22   36    22
  23  |    8   25    8   11   16    5   25   13   12   24    5 |    20   32   21   19   34   19   34   19   18   19    18
  24E |   12   19    9   11   16    6   17   14   11   13    4 |    93   98   97   93   98   95   96   93   96   98    95
 X25  |    9   17    8    9   16    6   27   12    6  ---    4 |    31   25   30   32   34   28   32   27   31  ---    28
  26  |   10   13    6    9   11    5   16   14   11   12    3 |    11   19   15   13   21   14   20   16   17   19    12
  27E |   11   21   12    9   18    6   17   28   21   13    6 |    14   24   20   18   28   17   27   34   30   23    19
  28  |   12   20    8   15   12    6   23   15   12   28    5 |    21   26   21   24   21   19   26   25   22   24    18
  29  |    9   22    6   10   15    5   26   13    8   23    4 |    27   32   28   28   19   28   34   32   32   27    26
  30  |    8   11    6    8   10    5   16   10    8   12    3 |    19   22   21   21   21   20   23   20   25   23    19
  31E |    9   22   10    8   17    3   20    9    9   11    4 |    14   25   16   12   25   15   24   15   15   11    13
  32  |   13   22    9    9   13    6   14   10    7   16    4 |    15   21   20   19   25   19   21   20   18   20    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    9   11   15    5   23   16   13   19      |T   24   32   27   26   30   31   32   29   28   27    24
 WRMS |   10   20    9   10   14    5   23   14    9   18      |NE  19   26   21   21   26   28   28   22   21   22    19
 MEDI |    9   21    8   10   14    5   22   13   11   16      |MD  17   26   21   21   25   20   29   22   22   21    18

Table 3.1628.6   GPS week: 1628   Day: 6   MJD: 55646.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6  ---  ---  ---  ---  393  ---  ---  ---  ---    0 |    53  ---  ---  ---  ---  315  ---  ---  ---  ---    52
   2E |   10   23   10   10   17    4   28   30   13   13    6 |    22   32   29   25   32   23   32   32   24   27    23
   3  |    8   15    4    9   19    4   15   15   10   13    4 |    28   31   32   32   37   31   27   32   33   30    29
   4E |   19   20   11    9   30    7   17   34   25   22    7 |   120  118  114  120  101  120  112  135  127  113   117
   5  |   10   25    7   12   16    4   27   17   10   19    5 |    28   38   32   39   39   31   37   32   28   28    30
   6  |    8   18    4    9   18    4   16   17    8   11    4 |    28   32   33   32   37   31   28   32   34   29    29
   7E |    8   19    8   11   21    5   23   14   12   11    4 |    25   29   23   24   30   25   30   26   27   23    22
   8E |   17   28   11    9   22    4   18   19   14   24    6 |    49   49   49   48   41   47   46   57   57   46    46
   9E |   13   21   12   11   17    4   19   33   24   12    6 |    26   33   34   32   33   32   34   49   42   30    31
  10  |   11   15    7   13   17    3   13   15   12   16    4 |    29   29   33   44   40   32   29   35   30   32    31
  11E |    9   19    6   12   24    4   21   17   15   20    5 |    26   36   26   24   36   24   29   29   28   28    23
  12  |   10   24    8   11   13    6   25   10   14   28    5 |    23   30   26   30   34   26   28   25   24   29    26
  13  |    9   20    9    8   20    5   24   17   12   16    5 |    25   32   29   27   38   26   33   28   28   23    24
  14  |   12   23    9   11   14    4   27    9    9   16    4 |    33   36   36   38   43   31   35   36   29   27    32
  15  |   12   22   10   10   20    5   27   14    9   22    5 |    25   35   31   31   39   27   33   30   24   25    25
  16  |    8   24    8    9   17    4   25   14    7   28    5 |    26   30   29   30   35   26   30   25   24   27    25
  17  |   10   23   10   14   13    5   26   13   12   21    5 |    34   36   30   36   27   34   33   35   33   38    31
  18  |   11   22    9   13   15    7   29   14    9   31    5 |    23   32   26   28   29   24   34   27   23   36    23
  19  |    9   25    9   11   19    4   27   15   13   17    5 |    21   32   21   23   28   23   34   25   27   20    21
  20  |   12   23   10   12   16    5   24   11   10   31    5 |    22   31   29   31   29   25   30   27   26   32    23
  21E |    9   16    6   11   25    9   25   12   11   15    4 |    15   23   21   22   29   19   27   21   20   22    17
  22  |   10   22   11    9   17    5   30   15    9   38    6 |    33   36   35   39   40   33   36   38   33   45    33
  23  |    9   24    8   11   13    3   30   15   10   22    5 |    30   37   32   33   38   30   40   32   30   27    29
  24E |   12   18    8   13   18    4   19   18   17   15    5 |    98  103  100  104  105  102  106   97  104  104   103
 X25  |    8   15    9    7   13    6   27   14   10  ---    4 |    39   35   40   40   45   37   41   36   36  ---    38
  26  |   10   15    7    7   16    3   12   13    9   15    3 |    23   26   25   27   30   24   26   25   24   22    22
  27E |    9   20   12   10   18    5   18   35   23   15    6 |    25   33   29   26   38   26   34   42   34   26    25
  28  |   11   23    8   11   14    5   23   14   11   31    5 |    30   33   31   37   39   33   35   35   32   34    31
  29  |    8   24    7   10   14    5   22   15    9   23    4 |    32   40   31   35   30   34   39   37   34   31    32
  30  |    8   12    8    8   17    3   15    8    9   15    3 |    30   27   32   30   35   31   27   26   32   27    28
  31E |    9   21    9    9   14    5   22   15    6   16    4 |    28   32   27   21   37   25   32   29   26   26    24
  32  |   13   18    5   12   13    3   19   10    8   18    4 |    24   26   30   30   33   28   28   30   27   27    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   21    9   11   18    5   23   18   13   21      |T   33   37   35   36   39   42   37   37   35   34    33
 WRMS |   10   21    8   10   17    4   23   14    9   19      |NE  29   32   30   32   35   42   32   30   29   29    29
 MEDI |   10   21    8   11   17    4   23   15   10   17      |MD  28   32   31   31   37   30   33   32   29   28    28



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components.  See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.1628   GPS week: 1628   MJD: 55640.0-55646.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |U   10     8    23 |U   10    12    39 |U    7     7    18 |
emr | emr 2943 |U   12    11    39 |U   13    11    40 |    10     9    20 |
esa | esa 2962 |    10     9    31 |U   10    11    40 |     7     8    18 |
gfz | gfz 2943 |U    9     8    24 |U   15    13    49 |U    8    10    18 |
grg | grg 2973 |    11     9    27 |U   11    11    49 |    10    11    22 |
igr | igr 2952 |     9     8    24 |    12    10    40 |     7     7    17 |
igs | igs 2960 |    11     9    34 |    13    12    41 |     6     6    14 |
jpl | jpl 2910 |U   13    13    37 |U   12    10    38 |U   10    10    21 |
mit | mit 2989 |U   99    53    77 |U   12    16    46 |U    9    11    20 |



Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit 
         positions and satellite clock corrections at 15 min intervals.

         Each line gives the daily station RMS w.r.t. the estimated coordinates 
         for the Latitude, Longitude and Height components.
        
         CLK  - Satellite clocks used.
         EPO  - Number of satellite clock epochs available for that day.
         Units: mm.

Table 5.1628.0   GPS week: 1628   Day: 0   MJD: 55640.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3020 |     8     7    28 |     9    15    45 |     7     6    15 |
emr | emr 2962 |     7     8    30 |     9    14    41 |     7     6    18 |
esa | esa 2976 |     9     8    41 |     9    13    50 |     7     5    15 |
gfz | gfz 2961 |     5     6    20 |    12    13    53 |     7     7    14 |
grg | grg 2976 |     6     7    28 |     8    11    52 |     7     6    18 |
igr | igr 2947 |     7     6    31 |     9    13    44 |     6     5    13 |
igs | igs 2961 |     7     6    27 |    10    19    46 |     6     4    15 |
jpl | jpl 2955 |     7     7    21 |    10    11    43 |     8     5    16 |
mit | mit 2976 |     8     8    48 |     8    11    47 |     8     7    17 |

Table 5.1628.1   GPS week: 1628   Day: 1   MJD: 55641.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3006 |     7     7    14 |     9     9    29 |    11     7    20 |
emr | emr 2956 |    12    12    60 |    10    10    31 |    11    13    14 |
esa | esa 2976 |     9    10    36 |     9     7    27 |     9    12    17 |
gfz | gfz 2957 |     6     4    17 |    12    14    43 |    10    11    17 |
grg | grg 2972 |     8     7    24 |     9     8    35 |    10    14    22 |
igr | igr 2952 |     6     5    18 |     9     6    28 |     9     7    16 |
igs | igs 2972 |    17    15    86 |     9     7    29 |     8    13    15 |
jpl | jpl 2854 |    24    28    76 |    10     9    28 |    13    14    20 |
mit | mit 3072 |     6     4    15 |    10     9    33 |     7    17    18 |

Table 5.1628.2   GPS week: 1628   Day: 2   MJD: 55642.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3013 |     9    10    27 |    14    13    56 |     5     5    20 |
emr | emr 2862 |    13    12    31 |    23    15    51 |     9     6    21 |
esa | esa 2880 |    12    11    25 |    16    13    51 |     6     7    16 |
gfz | gfz 2859 |    10    11    22 |    20    13    53 |     7     7    16 |
grg | grg 2968 |    11    13    31 |    18    15    60 |     7     5    17 |
igr | igr 2956 |     9    11    25 |    18    12    52 |     6     6    16 |
igs | igs 2934 |     9     9    25 |    21    13    54 |     7     5    16 |
jpl | jpl 2768 |    13    14    41 |    19    14    53 |    10     8    19 |
mit | mit 2976 |   638   319   334 |    21    15    52 |     6     5    16 |

Table 5.1628.3   GPS week: 1628   Day: 3   MJD: 55643.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3042 |    18    13    28 |    11    12    40 |     6     8    16 |
emr | emr 2956 |    21    14    51 |    15    11    42 |    11    10    25 |
esa | esa 2976 |    20    14    38 |    12    12    43 |     7     6    17 |
gfz | gfz 2955 |    19    15    35 |    12    12    43 |     7    15    23 |
grg | grg 2975 |    20    14    29 |    12    10    55 |    11    14    19 |
igr | igr 2963 |    20    14    29 |    11    12    41 |     8     8    18 |
igs | igs 2974 |    19    13    29 |    12    10    41 |     7     7    18 |
jpl | jpl 2953 |    21    14    49 |    11    11    40 |    10    11    21 |
mit | mit 2976 |    19    20    61 |    12    16    39 |    10    15    22 |

Table 5.1628.4   GPS week: 1628   Day: 4   MJD: 55644.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3037 |     8     8    24 |    13    17    51 |     6     6    18 |
emr | emr 2956 |    11     8    20 |    16    12    62 |    10     8    17 |
esa | esa 2976 |     8     7    20 |    13    16    57 |     7     8    17 |
gfz | gfz 2956 |     7     6    17 |    21    15    63 |     8     8    17 |
grg | grg 2975 |    14     7    21 |    14    12    62 |    17    16    43 |
igr | igr 2941 |     7     6    18 |    17    13    56 |     7     6    17 |
igs | igs 2960 |     7     6    17 |    16    14    58 |     7     6    17 |
jpl | jpl 2946 |     8     7    17 |    18    14    51 |     8     6    21 |
mit | mit 2976 |     7     5    17 |    16    16    57 |     8     8    19 |

Table 5.1628.5   GPS week: 1628   Day: 5   MJD: 55645.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |     8     7    27 |     7    10    24 |     8     6    14 |
emr | emr 2955 |    10    13    58 |    10     9    27 |    11    13    22 |
esa | esa 2976 |     9     9    38 |     7    10    27 |     9     8    16 |
gfz | gfz 2957 |     8    10    43 |    14    12    38 |    10    11    20 |
grg | grg 2975 |     9    10    37 |     8     9    37 |    10     9    15 |
igr | igr 2961 |     7     9    31 |    14    10    35 |     8     8    14 |
igs | igs 2968 |     8     9    36 |    15    11    37 |     9     8    17 |
jpl | jpl 2946 |    10    11    35 |     8     9    27 |    12    13    27 |
mit | mit 2976 |     8    10    45 |     9    36    64 |    12    12    22 |

Table 5.1628.6   GPS week: 1628   Day: 6   MJD: 55646.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |    14     7    18 |     7     7    25 |     6    10    19 |
emr | emr 2956 |    11    10    24 |     9     8    27 |    10     8    24 |
esa | esa 2976 |     6     6    18 |     7     6    28 |     6    13    33 |
gfz | gfz 2957 |     6     5    18 |    18    10    47 |     7    10    22 |
grg | grg 2976 |     8     7    19 |     8     8    39 |     9    13    21 |
igr | igr 2947 |     7     6    15 |     7     7    29 |     3    10    27 |
igs | igs 2951 |     6     6    16 |     7     7    26 |     0     0     0 |
jpl | jpl 2950 |     8     8    20 |     7     7    24 |  ----  ----  ---- |
mit | mit 2976 |     8     5    17 |     7     8    27 |    11    12    27 |


Table 6: Earth Orientation Parameters weekly summary.                          
                                                                              
        Weekly mean and standard deviation of Centre ERP, ERP rates and       
        LOD differences with respect to IGS combined values. See Table 7 for  
        the daily summaries.                                                  
                                                                              
        Xpole,Xrt: x pole and x pole rate                          
        Ypole,Yrt: y pole and y pole rate                       
        LOD      : Length Of Day                                               
                                                                              
        AC LOD BIAS    : 21-day mean LOD bias with respect to Bulletin A     
        AC LOD BIAS RMS: RMS of AC LOD BIAS                              
                                                                              
        FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
              for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1628   GPS week: 1628   MJD: 55640.500-55646.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      -8     -72     135     127    -13 |       6     19
            |      31      19     127      77      6 |       3
emr   uuuuu |       8      51     -44     168      0 |      52     55
            |      27      23      85     101      9 |       6
esa   uuuuu |     -57     -35      -2    -156      0 |       4     20
            |      18      15      58      63      9 |       4
gfz   uuuuu |     -11      52      -6      86      4 |      12     24
            |      24      19      79      91      5 |       7
grg   uuuux |      58     -39      35      69     -2 |       3     19
            |      38      40     190     108     43 |       4
igr   xxxxx |     -55      52      59      -1      1 |      -3     23
            |      21      18      88      73      9 |       4
irf   xxxxx |      24       1     -88      86     -4 |      12     25
            |      20      14      61      90     25 |       8
jpl   uuuuu |      10     -19     262      75     -6 |      17     28
            |      38      29     140      97     10 |       4
mit   uuuuu |      15     -13    -170     159      3 |      26     35
            |      26      17     110     164     24 |       9
ngs   uuuuu |       2      63       7    -168     -5 |      -2     14
            |      74      34     121     135     11 |       3
sio   uuuuu |      84     -96      27      15     13 |      57     64
            |      33      37      90     119     25 |      14


Table 7.1628.0   GPS week: 1628   Day: 0   MJD: 55640.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       3     -85      45      53     -8 |       4     17
emr   uuuuu |       9      33     -68     262      6 |      46     47
esa   uuuuu |     -82     -43      30    -142      1 |       1     16
gfz   uuuuu |     -53      47    -135    -100      4 |       4     15
grg   uuuux |      48     -95     263     170     29 |      -4     23
igr   xxxxx |     -47      40      88     124    -14 |      -5     21
irf   xxxxx |       7      20     -91      88     12 |       2     14
jpl   uuuuu |     -12      26     335     174     -6 |      13     24
mit   uuuuu |     -10       4    -137     236     13 |      14     19
ngs   uuuuu |     110      63     -78    -154    -13 |      -3     14
sio   uuuuu |      66     -43      54    -140     28 |      37     42

Table 7.1628.1   GPS week: 1628   Day: 1   MJD: 55641.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -15     -61     210     166    -16 |       5     16
emr   uuuuu |     -21      57     -33      44      0 |      46     48
esa   uuuuu |     -62     -39      39    -114     -5 |       0     16
gfz   uuuuu |     -20      76     -77     126      3 |       6     16
grg   uuuux |      83     -34      89     107     -5 |       0     25
igr   xxxxx |     -75      62     -22      33     -1 |      -7     21
irf   xxxxx |      21       5     -23      96     17 |       4     15
jpl   uuuuu |      -7      12     104      23    -21 |      15     24
mit   uuuuu |       3     -12     -49     222     21 |      17     21
ngs   uuuuu |      53       1     -66    -285     -4 |      -4     14
sio   uuuuu |      92     -67      93     -10     34 |      43     47

Table 7.1628.2   GPS week: 1628   Day: 2   MJD: 55642.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       7     -99     133     238     -8 |       2     15
emr   uuuuu |      15      63    -103      54      6 |      45     47
esa   uuuuu |     -62     -50     -42    -131     -9 |      -2     13
gfz   uuuuu |      -3      75      47      97     15 |       6     15
grg   uuuux |      83     -59      72     -34    -59 |       2     24
igr   xxxxx |     -52      59      70      -7     -5 |      -9     20
irf   xxxxx |      47      -4     -43     221     21 |       5     17
jpl   uuuuu |      51     -15     217      28      5 |      11     21
mit   uuuuu |      48     -21    -102     385     28 |      18     24
ngs   uuuuu |     -80      80     -19    -360    -18 |      -6     14
sio   uuuuu |     119    -100      53     179     40 |      48     53

Table 7.1628.3   GPS week: 1628   Day: 3   MJD: 55643.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      37     -70     152      34     -7 |       8     19
emr   uuuuu |       5      55     -64     142     12 |      52     55
esa   uuuuu |     -32     -41      41    -128     17 |       3     16
gfz   uuuuu |      16      34      -1     138      7 |      14     25
grg   uuuux |      47     -49     -26      34    -47 |       6     17
igr   xxxxx |     -44      71     131     -15      9 |      -4     21
irf   xxxxx |      30      21     -15      96     10 |      14     27
jpl   uuuuu |      60     -23      90      90     -1 |      18     28
mit   uuuuu |      16      12     -51     168     21 |      28     38
ngs   uuuuu |     -70      79    -102    -185    -19 |      -1     14
sio   uuuuu |      81     -67     156       6     27 |      61     68

Table 7.1628.4   GPS week: 1628   Day: 4   MJD: 55644.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -59     -43      24     169    -21 |      10     22
emr   uuuuu |       5      68      -6     135    -11 |      57     62
esa   uuuuu |     -47      -6      15    -121      0 |       8     25
gfz   uuuuu |      17      36      93     181      1 |      18     32
grg   uuuux |       8     -25      73     -96     13 |       5     16
igr   xxxxx |     -30      41     200     -55      9 |       0     26
irf   xxxxx |      53      -9    -152     129    -16 |      20     35
jpl   uuuuu |       5     -28     436     -18     -5 |      22     34
mit   uuuuu |      55     -31    -293     165     -5 |      35     47
ngs   uuuuu |     -56      49     -38    -195      2 |       0     15
sio   uuuuu |     130    -126    -113     164      1 |      68     77

Table 7.1628.5   GPS week: 1628   Day: 5   MJD: 55645.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       2     -83      11      64    -19 |       8     21
emr   uuuuu |     -20      74    -151     244     -6 |      57     62
esa   uuuuu |     -74     -28    -118    -294      0 |       8     26
gfz   uuuuu |     -18      36      47     109     -2 |      19     33
grg   uuuux |     115     -44     124     203    -13 |       4     14
igr   xxxxx |     -46      71     -22    -107     12 |       1     26
irf   xxxxx |      -2     -16    -143      46    -34 |      19     35
jpl   uuuuu |     -49     -50     419     -10      4 |      22     33
mit   uuuuu |      -7     -33    -273      80    -28 |      36     48
ngs   uuuuu |      56     112     144     -19      3 |       1     16
sio   uuuuu |      34    -139     -21      -9    -16 |      70     79

Table 7.1628.6   GPS week: 1628   Day: 6   MJD: 55646.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -30     -58     370     164    -13 |       5     21
emr   uuuuu |      60       7     117     297     -9 |      57     62
esa   uuuuu |     -44     -39      22    -160     -7 |       9     26
gfz   uuuuu |     -14      62     -13      53      2 |      19     33
grg   uuuux |      19      36    -350     101     67 |       4     14
igr   xxxxx |     -90      23     -29      20     -1 |       1     26
irf   xxxxx |      13      -6    -146     -76    -36 |      16     35
jpl   uuuuu |      18     -53     231     237    -18 |      20     32
mit   uuuuu |       2      -9    -281    -146    -29 |      34     47
ngs   uuuuu |       3      59     211      20     10 |       0     15
sio   uuuuu |      65    -125     -34     -86    -20 |      70     79



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