[IGSREPORT-19655] Wk 1629 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Apr 14 04:47:11 PDT 2011


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1629   (Mar 27, 2011 - Apr 02, 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:

igs1629[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1629[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1629[0-6].cls  IGS GPS clock combination summary report.
igs16297.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16297.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  |  ALL   | 6
                0  |  COD   | 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                0  |  COD   | 21 22 23 24 25 26 27 28 29 30 31 32 2 3 4 5 7 8 9
                0  |  COD   | 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
                0  |  COD   | 27 28 29 30 31 32
                0  |  EMR   | WTZR
                0  |  ESA   | 4 6 8 24 4 24 WTZR
                0  |  GFZ   | 2 4 9 21 24 27 MDVJ
                0  |  GRG   | ADIS
                0  |  JPL   | 25 ADIS
                0  |  MIT   | 8 MAW1
                1  |  EMR   | 24 24 WTZR WTZR
                1  |  ESA   | UNSA
                1  |  GFZ   | 2 4 21 MDVJ OUS2 RAMO SALU
                1  |  JPL   | 9 25 27 PIMO
                1  |  MIT   | 8 9 24 27 8 9 24 27 CAS1 MAW1 CAS1 GRAZ MAW1
                2  |  EMR   | 4 24 4 24 WTZR WTZR
                2  |  ESA   | 18 18
                2  |  GFZ   | 2 4 21 24 DAV1 UNSA
                2  |  GRG   | AMC2
                2  |  JPL   | 9 25 27 ADIS
                2  |  MIT   | 4 8 9 18 22 24 27 4 8 9 18 22 24 27 DARW DAV1 MAW1
                2  |  MIT   | MDVJ NNOR DARW DAV1 NNOR
                3  |  COD   | UNBJ
                3  |  EMR   | 4 24 4 8 24 WTZR WTZR
                3  |  ESA   | NRC1 RAMO
                3  |  GFZ   | 4 21 24 MDVJ UNSA
                3  |  GRG   | ADIS AMC2 SANT
                3  |  JPL   | 4 9 25 27 HARB
                3  |  MIT   | 4 6 8 9 14 18 22 24 27 31 4 6 8 9 14 18 22 24 27
                3  |  MIT   | 31 BOR1 DAV1 NTUS
                4  |  EMR   | 4 24 4 24 WTZR WTZR
                4  |  GFZ   | 24 HARB MDVJ OUS2 UNSA
                4  |  GRG   | ADIS AMC2
                4  |  JPL   | 4 9 24 25 27 CAS1
                4  |  MIT   | 4 8 9 10 11 24 26 27 29 32 4 7 8 9 10 11 15 24 26
                4  |  MIT   | 27 29 32 HARB
                5  |  COD   | 8 8 RAMO USNO
                5  |  EMR   | 24 4 24 27 WTZR MATE WTZR
                5  |  ESA   | MCM4
                5  |  GFZ   | 8 24 HARB
                5  |  JPL   | 4 9 24 25 27
                5  |  MIT   | 4 8 9 24 27 4 8 9 24 27 CAS1 MAW1 NICO WTZR CAS1
                5  |  MIT   | MAW1 NICO WTZR
                6  |  ALL   | 24
                6  |  COD   | 24
                6  |  EMR   | 8 WTZR WTZR
                6  |  ESA   | 24 HOFN QAQ1
                6  |  GFZ   | MDVJ
                6  |  JPL   | 4 9 25 27
                6  |  MIT   | 7 8 9 7 8 9 27 MAW1 TIXI CHUR MAW1 TIXI WTZR

 5. 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  |  GFZ   | ALL (high Transformation - See Table 2)

 6. Velocity changes were estimated to alleviate the effects of modeling
    problems, experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G24 |    |    |    |    |    |    |  1 |

 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    1.5     -22      9    -25    -.01
       EMR  |    -.4    4.0     .6      15    -24     21     .38
       ESA  |    2.9    5.3   -4.5     163    -38     70     .14
       GFZ  |   -1.1     .8     .0       7     27    -20     .40
       GRG  |    -.6    5.8   11.7      28     31    -71     .30
       JPL  |     .7    -.4    1.3      22    -56      7    -.05
       MIT  |    5.6   -2.8     .9      -6     10    -60     .16
       NGS  |    5.4   -5.6     .7     -81    -94     43     .12
       SIO  |    -.9    4.2  -27.0     120   -148     16     .55


 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 1.1629.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1629.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 2.1629.[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 3.1629.[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 5.1629.0-6).

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 1629 summary.                       (Mar 27, 2011 - Apr 02, 2011)

Table 1.1629.a   GPS week: 1629   MJD: 55647.000-55653.000

         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  241|    0     0     1    82   -54     3  -.27    9    8 |    -285    -333  58003 114445
        |    0     0     0    13    17    16   .01           |     554     642
emr   88|    0     1     1     6    40     1   .45   21   21 |   -1094    -283     17    102
        |    1     1     1    22    23    13   .03           |    1003    1357
esa  131|    1     1     0  -198   -46    35   .23    9    9 |      55    -425     15    111
        |    0     0     1    15     8    25   .03           |    1593     791
gfz  190|    1    -1    -1     6  -114   111  -.14   12   11 |     105     133     23     97
        |    0     0     1    50    68   345   .03           |     386     623
grg  130|    0     0     2   -11   -80   -30   .57   18   16 |      86    -153     59    208
        |    1     1     1    46    37    17   .06           |     270     296
igr  n/a|    0     0    -1    22   -32    -1  -.03    6    5 |   -5120    -372     19     65
        |    0     0     0    41    18    20   .02           |    1082    1342
jpl  127|    0     0     0   -22    77    32   .42   23   23 |    1192    -392     20    102
        |    1     1     2    15    21    65   .04           |    1090    1230
mit  253|    1    -1    -3    79   -48   -13  -.34   19   13 |      81    -175     22    156
        |    1     0     1    20    26    13   .02           |     246     267
ngs  200|   -1     0    -1   220   167   -26  -.25   14   10 |    1387 -143216   2190   3924
        |    0     1     1    28    35    26   .03           |    4530  377806
sio  252|   -1     1     2  -185   261     5  -.06   20   20 |     ---     ---    ---    ---
        |    0     0     1    22    29    19   .05           |     ---     ---


Table 1.1629.b   GPS week : 1629   MJD: 55647.000-55653.000   

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



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 2.1629.0   GPS week: 1629   Day: 0   MJD: 55647.000                            

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  241|    0     0     2    80   -76    10  -.29    7    7 |       0       0 405916 800721
        |                    103    27                       |
emr   88|    0     2     3    12    37     1   .40   20   20 |    -285   -1590     19    104
        |                     16   -27                       |
esa  131|    1     1    -3  -207   -43    31   .22   10    9 |   -1256    1048     25    130
        |                     34    73                       |
gfz  190|    3    -1    -3    58   -89   896  -.18   17   16 |    -259     427     35     94
        |                   -104    34                       |
grg  130|   -1     0     0   -62  -143   -67   .60   20   19 |      92    -439     62    228
        |                     89    66                       |
igr  n/a|   -1    -1     0     4   -60    38  -.06    6    6 |   -3947   -1727     27     76
        |                    -66    99                       |
jpl  127|    0    -2     3   -28    67   -16   .42   21   21 |    -234   -1594     24    104
        |                     35    26                       |
mit  253|    2    -2    -4    95   -87    -1  -.37   20   17 |      90    -334     24    146
        |                      0     2                       |
ngs  200|    0    -2    -2   197   167   -49  -.24   14   10 |   11571 -999999   2151   4136
        |                    -86   -44                       |
sio  252|   -1     0     1  -169   222    18  -.11   22   22 |     ---     ---    ---    ---
        |                     44   -89                       |

Table 2.1629.1   GPS week: 1629   Day: 1   MJD: 55648.000                            

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  241|    0     0     2   102   -68   -27  -.27    9    9 |    -142    -450     17     59
        |                      7    30                       |
emr   88|    1     0     1    47    76    30   .46   22   22 |    -432   -2631     18     91
        |                     -1   -63                       |
esa  131|    1     1     0  -192   -42    73   .27    9    8 |   -1489    -710     15    106
        |                     29   104                       |
gfz  190|    1     0     0   -79  -114    -3  -.15   11   11 |     260    -151     24     93
        |                    -55   105                       |
grg  130|    0     0     0     5   -70   -23   .47   17   16 |     289    -199     62    206
        |                     21   -43                       |
igr  n/a|   -1     0     0    74   -27   -16  -.05    5    5 |   -4064   -2588     18     71
        |                    -53    73                       |
jpl  127|   -1     1     2    -8    75   -26   .43   23   22 |    2635   -2430     20    100
        |                     -8   -48                       |
mit  253|    2    -2    -6    38   -51   -13  -.35   17   14 |       0     238     21    123
        |                      2    -8                       |
ngs  200|   -1    -1    -3   268   161   -36  -.27   14   11 |    -146    -457   2623   4139
        |                   -188   -26                       |
sio  252|   -2     1     0  -220   238    22  -.01   21   21 |     ---     ---    ---    ---
        |                     36   -92                       |

Table 2.1629.2   GPS week: 1629   Day: 2   MJD: 55649.000                            

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  241|    0     0     2    72   -66    25  -.26    8    7 |    -496    -220     20     72
        |                     73    49                       |
emr   88|   -1     1     1   -17    30     0   .45   21   21 |   -2718     636     16    104
        |                     30   -12                       |
esa  131|    1     1     0  -198   -54    30   .26    8    8 |     136    -924     10     95
        |                     53    85                       |
gfz  190|    1     0    -3    37   -83    -8  -.13   10   10 |     510    -651     18     98
        |                    -36    84                       |
grg  130|    0     0     3   -32   -99   -16   .52   17   17 |     -64    -151     47    209
        |                     62    -6                       |
igr  n/a|    0    -1    -2    16   -37   -13  -.02    6    6 |   -6607     155     17     56
        |                    -53    93                       |
jpl  127|    0     0     2   -42    60     3   .41   23   22 |     208      74     21    108
        |                     50    10                       |
mit  253|    2    -2    -3   103    -5    -6  -.32   16   13 |     -80     -59     22    158
        |                      0   -11                       |
ngs  200|   -1    -1    -1   207   160   -49  -.25   13   10 |    -235    -588   1739   3455
        |                    -34    34                       |
sio  252|    0     2     2  -150   294    14  -.01   21   20 |     ---     ---    ---    ---
        |                     31  -101                       |

Table 2.1629.3   GPS week: 1629   Day: 3   MJD: 55650.000                            

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  241|    0     0     0    89   -38     0  -.28    9    8 |     169    -688     22     73
        |                     26    14                       |
emr   88|    1    -1     5    -5    53    -9   .47   21   21 |   -1735     -76     18    100
        |                     20   -20                       |
esa  131|    1     2     0  -219   -33    23   .21    9    8 |    2059   -1171     15    107
        |                     34    75                       |
gfz  190|    1    -2    -1    47  -191   -12  -.12   11   10 |     365     -25     22     96
        |                    -68    69                       |
grg  130|    0     0     3   -21   -63   -34   .63   16   15 |     302    -226     57    193
        |                     50   -89                       |
igr  n/a|   -1    -1    -2    59   -14     1  -.04    5    5 |   -5801    -419     20     57
        |                    -52    41                       |
jpl  127|    0     0     1   -10    67    47   .48   23   23 |    1045    -445     21    100
        |                     51    30                       |
mit  253|    0    -1    -3    74   -47     5  -.35   15   11 |     432    -531     21    131
        |                      1     7                       |
ngs  200|   -3     0    -1   227   205   -25  -.24   12   10 |     215    -699   2815   4066
        |                    -16   -13                       |
sio  252|   -1     1     2  -190   254    25  -.03   18   18 |     ---     ---    ---    ---
        |                     31  -101                       |

Table 2.1629.4   GPS week: 1629   Day: 4   MJD: 55651.000                            

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  241|    0    -1     0    64   -31     9  -.27    9    8 |    -227    -594     17     67
        |                     66     4                       |
emr   88|   -1     2     0   -15    46     3   .44   23   23 |   -1889    1053     18    114
        |                     13   -12                       |
esa  131|    2     2     0  -189   -43    49   .22   11   10 |   -1371      11     16    121
        |                     21    21                       |
gfz  190|    1    -1    -2   -14  -201   -28  -.12   11   10 |     221    -271     22    110
        |                    -29    88                       |
grg  130|    1    -2     3   -37   -74   -24   .64   17   15 |     -88    -110     57    190
        |                     57   -86                       |
igr  n/a|    0     0    -1   -21    -5    -4   .01    5    5 |   -6249    1057     19     62
        |                    -19    10                       |
jpl  127|   -3     0     0   -42   106    56   .41   24   24 |     532     931     20    105
        |                     67    75                       |
mit  253|    0     0    -3    88   -57   -18  -.33   17   11 |     -86    -175     29    197
        |                     -6    26                       |
ngs  200|   -1     0     0   205   209   -22  -.22   14    9 |    -297    -515   2047   3985
        |                     89   -97                       |
sio  252|   -2     1     1  -182   262    -5  -.02   19   19 |     ---     ---    ---    ---
        |                     24   -87                       |

Table 2.1629.5   GPS week: 1629   Day: 5   MJD: 55652.000                            

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  241|    0     0     1    93   -42     0  -.28   10    9 |     129   -1215     17     67
        |                     54    -3                       |
emr   88|   -2     2     0    22    38    -9   .42   21   21 |    -397     793     15    110
        |                     -7    -9                       |
esa  131|    0     1     0  -172   -46    -7   .22    9    8 |    2306    -150     11    103
        |                     -7    43                       |
gfz  190|    1    -2    -1   -31  -116   -24  -.15   10   10 |     231     318     22     97
        |                    -18    70                       |
grg  130|    1     1     2   -16   -19   -22   .56   18   16 |     420    -405     59    224
        |                     71  -123                       |
igr  n/a|    0     0    -3    56   -42   -25  -.03    6    5 |   -4709     891     19     59
        |                    -22    45                       |
jpl  127|    0     2    -3    -8   110   162   .35   24   24 |    1997     797     20    107
        |                     78    16                       |
mit  253|    0    -1    -3    77   -62   -32  -.34   21   11 |     408    -399     22    183
        |                      5    32                       |
ngs  200|   -1     0    -1   247   168    29  -.22   15   11 |     179   -1338   1898   4064
        |                    -95  -128                       |
sio  252|   -2     1     3  -196   250   -13  -.12   19   21 |     ---     ---    ---    ---
        |                     27   -89                       |

Table 2.1629.6   GPS week: 1629   Day: 6   MJD: 55653.000                            

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  241|    0     0     1    74   -57     2  -.27   10    8 |   -1434     836     18     60
        |                     80    13                       |
emr   88|    0     2     0     0     0    -4   .48   21   21 |    -208    -172     16     91
        |                      5     5                       |
esa  131|    1     0     0  -212   -59    48   .21    9    9 |       0   -1083     14    120
        |                     39    79                       |
gfz  190|    1    -1     0    28    -1   -34  -.09   11   10 |    -588    1285     23     95
        |                    -41    66                       |
grg  130|    2     0     2    82   -90   -22   .60   19   17 |    -345     458     70    210
        |                    -86    14                       |
igr  n/a|    0     0    -1   -31   -39     4  -.02    6    5 |   -4467      21     19     74
        |                    -20    63                       |
jpl  127|    0     0    -1   -19    54    -2   .43   24   24 |    2167     -80     20     94
        |                     38    48                       |
mit  253|    1    -1    -3    77   -24   -26  -.35   23   12 |    -191      30     20    155
        |                     10    21                       |
ngs  200|   -2     0     0   191   103   -29  -.30   16   10 |   -1575    1083   2060   3628
        |                      5    -3                       |
sio  252|   -1     1     4  -189   307   -23  -.11   22   21 |     ---     ---    ---    ---
        |                     18  -108                       |

       
       
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 3.1629.0   GPS week: 1629   Day: 0   MJD: 55647.000                            

        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  ---  ---  ---  ---  111  ---  ---  ---  ---    0 |    57  ---  ---  ---  ---   73  ---  ---  ---  ---    54
   2E |    7   19    9   16   30    5   25   28   13   16    6 |    44   38   38   46   40   39   41   48   43   35    39
   3  |    6   13    6   15   15    9   13   15   12   17    4 |    23   26   25   36   34   22   20   25   22   22    21
   4E |   10   19   12   16   23   11   16   16   19   21    6 |    92   97   96  104  102   92  102   88   96   96    93
   5  |    5   21    6   19   16    7   24   21   12   20    5 |    21   30   22   31   27   22   31   26   20   22    21
   6  |    6   13    7   14   13    9   16   20   10   18    4 |    28   27   30   37   35   26   22   30   25   26    26
   7E |    5   21    9   19   17    5   19   18    8   15    4 |    23   31   23   30   31   20   29   20   22   22    21
   8E |   13   24   11   18   23    6   18   27   17   18    6 |    24   28   22   30   26   19   25   40   32   25    20
   9E |   12   20   17   20   27    4   16   36   29   20    8 |    32   38   38   45   44   36   40   53   50   34    35
  10  |    5   14    5   15   15    3   11   15   10   18    4 |    29   28   33   37   37   29   32   28   32   28    30
  11E |    5   17    9   15   22    5   16   19   12   17    5 |    23   32   27   31   34   20   29   21   15   17    19
  12  |    6   23    9   15   20    5   22    9    9   26    5 |    21   32   25   34   32   24   28   22   23   22    23
  13  |    7   19    8   22   21    8   24   16   18   21    5 |    19   31   28   33   40   21   29   22   22   16    23
  14  |    7   22    9   16   16    6   25   11   10   22    5 |    23   27   26   39   35   25   25   29   25   20    23
  15  |    8   24    9   17   19    5   24   20   11   25    6 |    22   34   30   42   37   30   32   25   29   22    27
  16  |    7   24    6   14   13    7   24   15    8   27    5 |    21   27   23   29   27   17   27   21   18   18    19
  17  |    7   19   10   20   21    4   22   15   11   23    5 |    15   26   16   32   22   13   27   15   12   21    13
  18  |    8   26   11   22   18    6   29   18   12   21    6 |    24   39   26   40   32   26   39   25   28   24    25
  19  |    7   26   13   16   17    7   26   17   14   22    6 |    18   29   16   28   22   13   27   19   17   18    13
  20  |    6   23   11   29   17    6   25   16   11   25    5 |    24   34   28   37   33   24   34   28   20   24    23
  21E |    6   17    8   17   21    4   25   18   10   19    5 |    33   31   30   40   28   27   31   33   31   32    28
  22  |    7   22   12   15   21    6   27   20    9   31    6 |    22   31   25   32   33   22   33   29   22   29    22
  23  |    7   22    9   19   20    7   24   23   11   23    5 |    22   33   29   39   39   25   32   22   21   23    26
  24E |   10   18    8   18   23    7   16   17   11   16    5 |   132  125  126  121  123  126  118  129  126  123   127
 X25  |    7   14   10   11   16    6   25   14   13  ---    5 |    33   38   36   40   48   33   45   32   32  ---    36
  26  |    7   15    7   12   13    4   13   22   12   28    5 |    19   22   24   32   26   20   22   23   23   28    21
  27E |    9   21   15   19   31    4   16   33   32   17    8 |    22   28   26   35   33   23   30   40   37   24    22
  28  |    8   22   10   17   18    7   23   16   13   27    5 |    20   30   26   35   35   23   28   28   28   20    22
  29  |    6   19    9   16   18    5   23   18    9   29    5 |    14   25   13   30   17   13   26   14   13   17    10
  30  |    5   12    4   11   14    5   14   12    9   23    4 |    23   20   21   31   30   19   18   22   21   21    19
  31E |    7   20    7   12   18    5   21   14   10   21    5 |    25   30   24   31   31   24   29   28   21   22    22
  32  |    8   20    9   15   21    6   18   19   10   26    5 |    23   24   20   31   28   21   24   20   20   22    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20   10   17   20    6   21   20   14   22      |T   30   35   31   39   37   30   34   32   30   29    29
 WRMS |    7   20    9   16   19    6   21   17   10   22      |NE  23   29   24   34   31   24   28   24   22   22    23
 MEDI |    7   20    9   16   18    6   22   18   11   21      |MD  23   30   26   35   33   23   29   26   23   22    22

Table 3.1629.1   GPS week: 1629   Day: 1   MJD: 55648.000                            

        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  ---  ---  ---  ---   82  ---  ---  ---  ---    0 |    32  ---  ---  ---  ---   64  ---  ---  ---  ---    31
   2E |    7   26    9    9   17    5   28   28   11   14    5 |    32   38   36   33   33   32   37   33   34   33    33
   3  |    8   11    7   10   13    6   19   13   12   16    4 |    18   18   23   22   25   17   16   20   19   18    17
   4E |    9   31   10   14   16    9   15   17   16   20    5 |    86   97   91   85   93   90   95   87   91   96    91
   5  |   10   23    6   13   20    6   22   17   17   22    5 |    20   28   18   25   28   16   26   22   18   19    17
   6  |    8   16    6    7   11    5   18   16   12   16    4 |    19   19   22   26   25   17   19   21   18   21    18
   7E |    8   21   10   13   15    5   24   15    9   13    4 |    16   32   18   24   28   16   26   19   18   18    17
   8E |   18   26   10   13   18    6   19   28   22   18    6 |    23   30   17   27   27   19   23   36   34   20    20
   9E |   14   23   15   11   19    3   21   31   25   16    6 |    22   36   30   26   35   24   36   41   38   27    24
  10  |    7   15    7    9   13    4   14   12   13   18    4 |    36   39   41   32   40   35   40   39   36   40    37
  11E |    8   17    9   10   19    4   22   13   17   24    5 |    17   27   19   21   25   16   29   20   21   15    17
  12  |    9   27    7   11   17    6   22   10   10   25    5 |    20   33   22   22   31   19   29   18   18   19    20
  13  |    6   16    7   11   21    6   25   12   11   20    4 |    20   34   25   21   39   19   32   22   17   18    21
  14  |    9   25   10   11   17    6   29   11   10   19    5 |    18   25   23   30   32   18   28   23   19   17    19
  15  |   10   25    8   13   18    4   27   14    7   22    5 |    21   30   24   23   31   18   28   23   20   20    19
  16  |    7   23    7    9   13    4   27   14   10   26    4 |    15   26   17   20   23   14   26   15   15   13    14
  17  |    7   19    7   15   17    4   23   15   12   23    5 |    17   29   17   22   23   13   26   19   12   16    13
  18  |   11   29    9   16   16    3   28   16    8   19    5 |    20   40   26   29   31   21   34   22   24   20    22
  19  |    7   26   11   10   15    7   32   16   16   22    5 |    18   28   16   19   20   15   27   17   18   16    13
  20  |   10   24   10   12   17    5   26   14   16   27    5 |    26   35   27   23   29   25   37   27   26   22    23
  21E |    8   18    6   12   21    5   27   14   11   21    5 |    35   36   35   33   37   33   33   36   40   41    36
  22  |   10   22   11   10   17    4   30   21   10   25    5 |    18   31   22   24   30   19   33   25   18   24    18
  23  |    7   20    6   12   18    4   27   10    9   25    4 |    25   36   28   24   34   23   35   25   23   20    24
  24E |   15   16    9   11   18    6   19   12   16   12    5 |    98   89   90  101   88   93   85   98   94   90    93
 X25  |    9   18    8    8   15    5   26   14    9  ---    4 |    25   35   32   27   42   26   44   26   25  ---    29
  26  |    8   17    6   11   12    4   14   17   12   25    4 |    17   19   17   21   25   14   21   20   18   26    15
  27E |    9   21   16   12   20    4   18   31   27   14    6 |    16   26   27   21   28   16   27   33   29   22    17
  28  |   11   24    8   11   18    6   24   14   13   25    5 |    19   29   24   25   30   18   28   21   25   17    18
  29  |    8   25    7   10   14    6   23   16   10   26    5 |    16   30   15   17   20   14   28   20   15   18    13
  30  |    6   13    8    9   10    3   16   11    9   20    3 |    18   18   19   22   25   15   17   17   17   16    15
  31E |    7   19    7   10   21    4   24   10   11   18    4 |    14   24   19   32   27   17   23   19   20   20    17
  32  |   10   20    8   11   16    6   16   15   12   23    4 |    26   31   25   27   24   24   32   35   24   29    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   22    9   11   17    5   23   17   14   21      |T   25   33   27   29   33   25   32   29   27   26    25
 WRMS |    9   22    8   11   16    5   22   14   11   21      |NE  21   29   23   23   28   21   28   22   20   20    20
 MEDI |    8   21    8   11   17    5   23   14   12   20      |MD  20   30   23   24   29   18   28   22   20   20    19

Table 3.1629.2   GPS week: 1629   Day: 2   MJD: 55649.000                            

        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  |    7  ---  ---  ---  ---  160  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---  118  ---  ---  ---  ---    40
   2E |    7   22   12   10   15    7   29   25   11   14    5 |    45   50   50   49   43   46   51   49   41   46    47
   3  |    8   11    6    8   18    5   19   12   11   12    3 |    15   18   21   25   29   16   16   18   18   18    17
   4E |   10   22   13   14   21    8   18   21   16   22    5 |    50   58   60   53   62   52   59   58   50   59    56
   5  |    8   20    9   14   14    8   28   17   17   22    5 |    17   26   24   28   26   19   29   20   22   20    19
   6  |    8   16    5    9   13    4   19   14   12   12    3 |    19   22   22   27   29   19   17   22   20   20    19
   7E |    7   26    6   12   15    5   25   15    9   13    4 |    20   31   25   24   30   17   27   18   20   19    20
   8E |   17   26   10   13   24    7   21   28   23   18    6 |    17   28   22   25   25   14   21   32   32   16    17
   9E |   13   23   10   12   18    4   19   24   23   15    6 |    23   38   32   33   37   29   38   40   41   28    29
  10  |    8   14    7   12   13    6   15   11   15   16    4 |    28   27   30   32   33   26   29   29   24   26    28
  11E |    7   16    9    7   16    5   19   14   10   18    4 |    12   26   18   19   23   13   23   17   15   13    14
  12  |    7   22    8   10   16    6   21   10   10   26    4 |    18   30   25   22   25   20   26   18   18   20    20
  13  |    5   19    5    9   20    7   23   11    8   19    4 |    19   31   22   26   37   17   30   20   20   17    20
  14  |    8   23    7   10   15    6   25   14    8   17    4 |    18   28   26   27   32   24   28   26   26   21    23
  15  |    8   25   10   11   19    5   27   10   10   22    5 |    17   29   26   25   27   19   25   20   22   21    19
  16  |    6   23    8    9   14    6   26   10   10   25    4 |    15   26   22   20   25   15   24   17   16   16    17
  17  |    6   16    8   15   16    7   23   13   15   24    5 |    15   23   16   23   24   11   26   19   13   17    13
  18  |    9   24    9   13   16    5   29   16    8   18    5 |    22   36   27   30   31   24   34   22   23   20    24
  19  |    6   21    7    9   14    7   28   16   12   21    4 |    17   25   17   20   16   16   26   19   23   20    15
  20  |    6   22    6   10   16    4   25   16   12   23    4 |    20   30   21   26   25   18   30   22   21   21    19
  21E |    8   21    8    9   26    7   30   27    7   39    6 |    21   23   25   26   21   19   23   27   18   47    21
  22  |    6   20    8    7   16    4   28   17    7   20    4 |    21   29   25   25   31   21   30   23   21   19    21
  23  |    6   22    8   11   16    5   27   10   11   25    4 |    20   29   24   22   28   18   27   21   24   16    18
  24E |   12   17    8   11   18    9   17   13   13   13    4 |   109  108  106  108  100  106  100  109  109  104   107
 X25  |    9   15    8    9   14    4   24   16    8  ---    4 |    29   33   34   26   39   24   40   28   22  ---    28
  26  |    6   15    4    8   11    6   14   12   11   25    4 |    15   22   22   22   23   17   19   18   17   27    17
  27E |   12   19   11   12   20    5   17   31   25   15    6 |    22   31   26   29   32   24   31   38   38   25    23
  28  |    9   23    8   12   16    8   26   13    9   25    5 |    20   31   26   26   34   20   29   24   23   18    21
  29  |    9   23    7    8   17    5   23   16    6   26    4 |    13   26   11   20   17   10   22   17   14   15     9
  30  |    6   13    7    6   15    5   14   11   10   17    3 |    17   22   20   22   28   16   18   21   18   20    18
  31E |    7   21    9    8   28    5   19    8    9   17    4 |    19   32   19   22   30   21   26   20   21   19    20
  32  |    8   16    6   10   16    5   16    8    9   25    4 |    25   28   25   27   27   25   24   29   30   27    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   21    8   10   17    6   23   16   13   21      |T   24   32   28   29   31   26   30   27   26   25    25
 WRMS |    7   21    8   10   17    6   22   13   10   20      |NE  20   27   23   24   27   23   26   21   20   19    20
 MEDI |    8   21    8   10   16    5   23   14   10   19      |MD  19   29   25   26   29   19   27   22   22   20    20

Table 3.1629.3   GPS week: 1629   Day: 3   MJD: 55650.000                            

        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  |    7  ---  ---  ---  ---  244  ---  ---  ---  ---    0 |    34  ---  ---  ---  ---  231  ---  ---  ---  ---    35
   2E |   12   23    5   11   19    5   30   10   10   12    5 |    29   29   25   25   34   27   31   31   35   23    25
   3  |    8   15    9    9   13    5   16    9   12   12    3 |    19   23   26   24   28   20   17   21   25   21    21
   4E |   10   24   22   13   18    6   20   29   18   19    7 |    82   89   94   82   90   82   90   87   82   84    85
   5  |    8   20    7   12   16    5   22   12   10   18    4 |    19   28   18   22   24   18   27   21   22   20    18
   6  |    8   17    8    8   10    4   17   10   12   10    3 |    24   25   30   26   32   23   22   26   27   24    25
   7E |    6   16    8   12   17    5   27   11    7   11    4 |    19   28   22   21   31   19   28   21   23   20    19
   8E |   18   24   11   12   21    3   21   30   19   19    6 |    22   30   20   26   25   24   27   43   39   21    22
   9E |   12   23   11   13   17    4   20   28   21   13    6 |    26   38   33   31   41   30   37   44   44   29    31
  10  |    6   12    5    8   15    3   14   11    9   13    3 |    35   35   39   37   38   34   36   33   38   35    36
  11E |    9   18    8   11   20    5   19   11   11   15    4 |    12   24   17   12   22   13   21   13   18   14    12
  12  |    8   24    7    9   12    6   22   11    9   26    4 |    17   31   22   24   29   21   28   19   22   21    19
  13  |    6   19    7   10   20    5   23    8   12   16    4 |    17   31   23   21   37   16   30   19   20   15    18
  14  |    8   25    6   14   12    4   24   12    7   16    4 |    21   30   27   33   32   23   27   27   22   20    23
  15  |    7   22   10   12   17    4   26    9   10   19    4 |    17   27   28   25   31   22   27   20   24   19    21
  16  |    7   27    9   10   13    4   27   14   11   25    5 |    16   29   20   19   26   14   27   18   19   18    15
  17  |    9   20    8   15   15    3   23    7   14   23    5 |    12   25   17   21   20   10   26   14   15   16    11
  18  |    9   26    9   14   17    4   26   12    7   16    5 |    20   36   26   28   29   22   34   23   25   21    23
  19  |   10   29   10   11   13    9   28   11   14   20    5 |    15   30   18   17   17   14   26   16   20   19    13
  20  |    6   25    6   11   13    5   25   14   14   20    5 |    20   32   22   22   25   21   32   21   24   23    19
  21E |    8   19    8   12   21    6   28    6    8   18    4 |    34   39   39   37   30   33   40   33   40   37    35
  22  |    8   24    7   11   17    4   27   11    9   15    4 |    19   31   26   26   33   21   31   23   22   19    21
  23  |    6   25    6   14   14    5   25    9   11   22    4 |    20   30   23   24   30   19   29   22   23   20    20
  24E |   16   23   10   15   18    9   22   26   15   14    6 |   108  108  101  106   99  102  100  105  104   99   103
 X25  |   10   14    7    8   12    6   20   14   11  ---    4 |    29   32   29   29   42   30   41   29   33  ---    29
  26  |    6   14    7   10   15    5   15   12   11   25    4 |    16   19   23   18   24   18   19   17   19   28    17
  27E |   11   19   11   12   17    4   18   32   23   12    6 |    24   29   26   25   32   24   33   43   35   25    24
  28  |    9   21    7   12   13    6   25   14   10   24    5 |    16   30   23   23   31   17   31   22   20   18    18
  29  |    8   23    8    9   19    4   25    9   10   25    5 |    12   28   16   14   19   12   25   13   21   16    11
  30  |    4   12    6    7   11    3   14   11   10   14    3 |    17   19   19   18   27   16   19   18   22   18    17
  31E |    6   19    9   10   21    5   23   13    9   13    4 |    20   28   21   22   28   20   28   23   25   23    20
  32  |    8   22    6   14   15    3   22    9   10   19    4 |    14   19   17   21   19   14   19   18   23   19    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   21    9   11   16    5   23   15   12   18      |T   25   33   28   28   33   31   32   28   30   26    25
 WRMS |    8   21    8   10   15    5   23   11   10   18      |NE  19   28   23   23   28   28   27   20   23   20    20
 MEDI |    8   22    8   11   16    5   23   11   11   16      |MD  19   30   23   24   30   21   28   22   23   20    20

Table 3.1629.4   GPS week: 1629   Day: 4   MJD: 55651.000                            

        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  ---  ---  ---  ---  185  ---  ---  ---  ---    0 |    57  ---  ---  ---  ---  141  ---  ---  ---  ---    55
   2E |    8   26    9   10   26    6   30   17    9   15    5 |    35   41   36   37   40   34   40   43   34   33    35
   3  |    8   18    9    9   13    4   14    7   11   13    3 |    17   20   22   22   26   20   21   18   27   18    19
   4E |    9   25   11   10   16    6   20   24   12   23    5 |   106  106  105  106  110  105  106  105  105  103   104
   5  |    7   22    9   13   15    6   24   12   12   23    5 |    18   29   17   24   22   16   30   20   25   21    18
   6  |    7   18    8    8   11    4   16    8   13   11    3 |    20   21   26   25   28   23   23   21   27   19    22
   7E |    6   20   11   11   17    4   25    9    6   11    4 |    15   27   20   15   26   14   29   18   21   18    16
   8E |   17   24   13   10   22    4   19   33   22   18    7 |    20   24   17   19   22   17   24   48   38   19    19
   9E |   12   24   13   12   17    4   20   27   23   13    6 |    22   38   31   28   38   27   37   41   41   28    28
  10  |    5   13    7    6   12    3   13    8    8   12    3 |    23   24   26   21   25   22   27   24   26   23    22
  11E |    7   20    7   11   15    5   21   10   16   23    4 |    19   28   19   15   26   18   26   23   29   23    17
  12  |    8   26    8   11   12    7   25   11   12   27    5 |    15   32   21   24   27   22   30   19   20   18    18
  13  |    6   21    7   11   18    5   28   10    8   17    4 |    15   30   24   20   36   16   33   17   21   17    17
  14  |    8   25   17   14   14    5   27   14    8   18    5 |    20   29   28   30   31   21   29   22   25   17    20
  15  |    9   24    9    8   15    4   24   12   11   19    4 |    14   29   23   21   29   21   29   20   25   19    19
  16  |    9   28   12    8   12    6   28   12    9   26    5 |    14   27   22   18   22   16   29   18   20   16    15
  17  |    5   22   11   13   16    4   26   10   10   21    5 |    14   27   13   12   20   10   28   14   19   16     9
  18  |    8   28    9   16   14    4   29   10   11   18    5 |    18   37   24   32   30   23   35   20   23   19    22
  19  |    7   29   10   10   13    6   27   10   12   20    5 |    14   28   12   13   14   13   27   16   21   19    11
  20  |    6   27    8   11   13    3   25   13   12   19    5 |    18   32   21   21   24   18   31   22   28   20    18
  21E |    8   24   11    8   34    2   28    8    8   11    5 |    27   35   24   20   36   24   37   27   32   24    24
  22  |    8   25   12   10   17    8   29    8   10   17    5 |    18   31   26   25   30   22   30   20   24   19    20
  23  |    6   27    9   17   13    4   31    8   12   22    5 |    15   32   21   22   28   15   32   17   22   19    17
  24E |   21   22   17   14   26   15   23   43   30   15    8 |   118  112  108  111  100  108  103  123  113  107   110
 X25  |    9   15    7    9   12    5   23   17    9  ---    4 |    21   30   30   27   38   24   40   26   26  ---    25
  26  |    6   15    7    7   14    5   16   11   14   27    4 |    15   18   19   16   21   16   20   18   19   30    15
  27E |   11   21   10   13   15    5   19   34   25   11    6 |    24   33   26   27   29   26   35   45   37   28    26
  28  |    6   23    8   15   16    4   28   14   11   22    5 |    14   29   19   21   27   16   31   20   20   18    15
  29  |   13   22   12   10   11    4   24   14   12   26    5 |    14   26   13   15   17   11   29   20   19   19    10
  30  |    7   13    8    7   10    3   15   10    8   14    3 |    17   17   19   17   23   16   21   18   23   17    16
  31E |   10   14   17   11   22    4   25   19   10   14    5 |    13   25   18   14   24   15   26   21   22   21    14
  32  |    8   25    9   14   11    4   25   13   13   20    5 |    16   20   19   26   21   17   21   25   20   22    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   23   11   11   17    5   24   17   14   19      |T   25   33   27   27   31   28   34   29   30   26    25
 WRMS |    8   23   10   10   15    5   24   11    9   19      |NE  18   27   21   21   25   23   28   19   22   19    19
 MEDI |    8   23    9   11   15    4   25   12   11   18      |MD  18   29   22   21   27   18   29   20   25   19    18

Table 3.1629.5   GPS week: 1629   Day: 5   MJD: 55652.000                            

        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  |    7  ---  ---  ---  ---   87  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---   86  ---  ---  ---  ---    40
   2E |    7   17    7    9   23    5   28   11   12   13    4 |    20   25   23   22   25   21   30   26   25   19    20
   3  |    9   13    8    8   14    7   14    9    9   16    3 |    18   20   23   19   27   17   23   16   19   17    19
   4E |   11   23   13   10   16    6   17   41   21   23    7 |   108  106  106  102  110  105  109  106  110  103   105
   5  |    9   21    8   11   16    5   23   12   13   18    4 |    17   27   17   24   23   16   28   19   23   16    16
   6  |    8   15    6    9   12    7   14    9    9   13    3 |    22   22   25   24   29   20   22   19   24   17    22
   7E |    8   22   11   11   18    7   24   16   12   11    5 |    13   30   16   17   31   14   26   19   16   19    15
   8E |   17   20   10    9   21    5   21   38   26   19    7 |    18   23   14   19   21   17   24   50   35   16    17
   9E |   13   25   11   10   24    6   21   26   17   13    6 |    20   34   24   21   38   20   37   35   29   26    23
  10  |    5   13    6    7   16    4   13    6   16   14    3 |    25   23   27   24   30   24   30   24   31   24    25
  11E |    8   15    7   11   19    5   17   12   19   13    4 |    20   26   22   18   29   21   28   20   23   24    20
  12  |    7   24    5    9   14    5   28   13    8   27    5 |    17   32   20   21   27   18   33   20   18   19    18
  13  |    6   21    8   12   22    5   27   10   14   15    5 |    15   31   23   17   37   15   31   16   16   15    16
  14  |   12   22    8   14   15    3   27   15   12   16    5 |    18   32   21   28   31   20   29   23   21   16    20
  15  |    9   22    8    9   16    5   31   14   12   19    5 |    16   24   17   20   28   18   32   21   22   15    17
  16  |    9   25    9    9   14    6   30   11    8   28    5 |    16   27   20   16   26   13   28   16   14   15    15
  17  |    7   22   12   12   16    4   31   13   13   21    5 |    13   27   18   16   22   12   31   16   16   15    11
  18  |   10   26    9   13   17    4   29   10   12   21    5 |    18   34   25   28   30   21   31   20   21   16    20
  19  |    8   26   14    9   14   10   26   10   13   21    5 |    17   26   16   13   16   14   26   16   20   19    12
  20  |   11   24    7   13   18    4   28   16   10   21    5 |    17   27   18   22   25   17   30   22   17   18    16
  21E |   11   21    7    8   33    6   28    7   12   12    5 |    36   40   36   35   37   33   40   36   34   35    34
  22  |    9   25    9    8   18    6   29    9   13   22    5 |    17   30   24   21   31   19   30   18   18   17    18
  23  |    6   23    8   14   17    4   28    7   12   21    5 |    18   29   22   21   30   16   32   17   19   18    18
  24E |   25   22   17   16   22   12   25   75   37   18   11 |   124  121  118  124  109  118  115  158  125  131   122
 X25  |    9   13    5    7   14    4   25   17   11  ---    4 |    25   32   27   26   37   25   42   29   25  ---    26
  26  |    5   17    9    8   14    5   17   13   12   28    4 |    17   17   17   17   22   15   23   17   17   30    15
  27E |   11   20   11   12   20    5   19   33   23   11    6 |    27   32   30   29   30   25   38   40   29   29    26
  28  |    7   24    8   12   17    5   26   12    8   24    5 |    13   30   22   18   28   15   31   20   18   17    15
  29  |   15   20    7    9   13    5   28   12   11   24    5 |    20   26   14   18   19   12   28   20   21   16    13
  30  |    7   13    7    6   11    5   17   12   11   16    3 |    16   17   17   17   24   12   21   16   15   17    15
  31E |    9   20   12   10   15    4   23   15   14   13    4 |    14   30   18   16   29   15   25   19   20   17    16
  32  |   12   21    6   10   17    5   17    9   13   21    4 |    17   17   19   25   22   17   18   24   25   22    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   21    9   10   18    6   24   21   15   19      |T   25   32   27   27   33   25   34   29   27   25    25
 WRMS |    9   21    8   10   16    5   24   11   11   21      |NE  18   26   20   20   26   20   28   19   20   17    18
 MEDI |    9   21    8   10   16    5   25   12   12   18      |MD  18   27   22   21   29   17   30   20   21   17    18

Table 3.1629.6   GPS week: 1629   Day: 6   MJD: 55653.000                            

        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  |    7  ---  ---  ---  ---  173  ---  ---  ---  ---    0 |    45  ---  ---  ---  ---   90  ---  ---  ---  ---    44
   2E |    5   24    6   11   16    5   26   13   11   12    4 |    31   37   26   28   37   28   35   32   32   25    28
   3  |    8   15    6    9   18    5   16    7    8   18    3 |    23   24   27   31   35   25   22   24   26   24    25
   4E |   11   20   11    9   13    5   18   38   22   23    6 |   120  126  126  125  125  125  121  131  123  126   124
   5  |    8   21    8   15   17    8   28   13   11   19    5 |    21   31   20   25   27   19   31   21   22   23    19
   6  |    6   18    6   11   17    5   15   10   11   16    4 |    29   27   34   38   39   30   26   28   33   25    31
   7E |    6   19   10   13   19    4   25   20   11   13    5 |    22   32   20   18   30   19   30   28   25   22    20
   8E |   18   22   12   11   23    6   18   34   30   21    7 |    21   24   20   22   23   20   25   45   36   21    19
   9E |   12   20   10    7   16    5   20   26   15   17    5 |    31   36   36   32   38   32   41   42   39   33    32
  10  |    7   13    4    7   12    3   13    8   15   13    3 |    27   27   25   23   27   24   24   23   28   24    24
  11E |    9   13   10   11   21    4   16   16   13   22    4 |    19   27   23   20   35   21   29   26   19   24    21
  12  |    8   26    8   10   14    6   24   15   11   26    5 |    21   31   19   18   26   17   28   20   17   20    17
  13  |    7   19    8   11   20    6   25   12   13   15    4 |    22   34   28   24   37   22   32   23   24   21    22
  14  |   10   23    9   12   16    4   25   19    8   19    5 |    21   33   30   35   37   25   30   28   24   21    25
  15  |    7   19   10    9   19    4   29   16   11   22    5 |    19   26   26   21   29   21   26   28   25   14    20
  16  |   10   26    8   10   18    4   27   13   11   28    5 |    18   28   23   24   27   19   30   20   21   19    19
  17  |    6   17    8   13   17    3   29   17   13   22    5 |    16   31   21   21   25   18   37   20   15   18    17
  18  |    9   25   10   10   19    8   29   11   15   20    5 |    22   39   28   26   31   24   39   24   22   24    24
  19  |    8   24    9   12   19    8   27   10   14   24    5 |    19   28   15   21   20   19   29   19   18   25    16
  20  |    7   21   10   10   14    5   26   12   13   24    5 |    27   36   28   29   30   29   34   27   34   35    28
  21E |    9   21    8    9   42    5   28    9   14   16    6 |    43   42   46   44   40   44   42   46   47   50    42
  22  |    7   23    9    9   20    7   29    8   13   25    5 |    20   33   25   22   34   22   35   24   22   25    21
  23  |    7   24    7   13   16    6   28    8   10   21    5 |    25   33   26   28   29   24   31   25   26   24    23
  24E |   27   29   20   15   22   12   28   83   43   45   13 |   122  121  116  118  110  116  114  137  120  138   118
 X25  |   10   15    5    7   16    3   22   17   14  ---    4 |    31   31   34   29   44   29   42   31   29  ---    30
  26  |    6   14    6    9   18    5   19   12   13   28    4 |    18   21   23   20   26   18   22   22   18   32    19
  27E |   12   20   14   13   17    5   18   44   30   13    7 |    37   41   35   28   39   29   39   55   33   32    31
  28  |    6   22    7   12   17    6   29   13    9   25    5 |    20   35   26   28   35   22   31   28   24   23    23
  29  |   11   22    8    9   17    6   27   16    9   25    5 |    17   28   16   16   17   14   31   18   17   20    13
  30  |    7   13    6    8   14    4   14    9   13   19    3 |    20   20   22   25   31   21   22   22   26   24    22
  31E |    9   20    9   10   12    4   24   14    9   12    4 |    19   34   24   26   26   25   31   25   25   24    23
  32  |   10   20    7    9   14    4   17   13   11   21    4 |    14   18   17   17   21   15   18   20   20   20    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   21    9   11   19    6   24   23   16   22      |T   30   36   31   31   36   31   36   34   31   31    29
 WRMS |    8   21    9   10   17    5   24   12   10   21      |NE  22   29   24   24   29   24   29   23   23   23    22
 MEDI |    8   20    8   10   17    5   25   13   13   21      |MD  21   31   26   25   31   22   31   25   25   24    23



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 4.1629   GPS week: 1629   MJD: 55647.0-55653.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3035 |U    7     7    21 |U    8    13    45 |U   10    10    28 |
emr | emr 2955 |U    9    11    28 |U    9    14    48 |    13    10    30 |
esa | esa 2976 |     7     8    22 |U    7    13    46 |    11     9    27 |
gfz | gfz 2951 |U    7     8    24 |U   10    16    48 |U   14    14    29 |
grg | grg 2975 |     7     8    22 |U    8    14    50 |    13    10    29 |
igr | igr 2955 |     7     8    20 |     9    14    48 |    11     9    26 |
igs | igs 2908 |     7     8    23 |     9    13    48 |    12    11    28 |
jpl | jpl 2952 |U    9    10    27 |U    8    14    45 |    13    10    32 |
mit | mit 2976 |U    8     9    29 |U    9    14    47 |U   12    12    28 |



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 5.1629.0   GPS week: 1629   Day: 0   MJD: 55647.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3029 |     7     5    16 |     8     7    26 |     5     5    15 |
emr | emr 2956 |     8    12    23 |     7     8    24 |     9     7    18 |
esa | esa 2976 |     6     6    17 |     7     7    23 |     7     4    14 |
gfz | gfz 2955 |     8     6    23 |    11    15    46 |     7     5    14 |
grg | grg 2974 |     7     6    15 |     7     8    31 |     7     5    16 |
igr | igr 2976 |     7     6    18 |     7     9    27 |     6     5    15 |
igs | igs 2847 |     9     7    26 |     7     7    22 |     6     9    16 |
jpl | jpl 2952 |     9     8    23 |     7     8    19 |     8     8    19 |
mit | mit 2976 |     6     5    18 |     7     8    22 |     9     6    17 |

Table 5.1629.1   GPS week: 1629   Day: 1   MJD: 55648.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3047 |     7     6    22 |    11    15    48 |     7    15    20 |
emr | emr 2956 |     8    11    40 |    12    15    52 |    14    11    20 |
esa | esa 2976 |     7     6    27 |    11    15    53 |     8    11    18 |
gfz | gfz 2957 |     8     5    21 |    12    19    39 |     9    16    25 |
grg | grg 2976 |     8     9    21 |    12    16    54 |    11    11    20 |
igr | igr 2936 |     6     5    20 |    11    16    48 |     9    10    17 |
igs | igs 2961 |     7     5    25 |    12    15    51 |    12    13    20 |
jpl | jpl 2946 |     9     9    37 |    12    16    55 |    10     7    18 |
mit | mit 2976 |     8     6    40 |    14    15    53 |     9    14    24 |

Table 5.1629.2   GPS week: 1629   Day: 2   MJD: 55649.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3034 |     7     4    16 |    11    31   117 |  ----  ----  ---- |
emr | emr 2956 |    11    13    25 |    11    32   119 |  ----  ----  ---- |
esa | esa 2976 |     8     8    17 |    11    31   120 |     8     7    24 |
gfz | gfz 2950 |     8     9    25 |    21    36   128 |    16    29    35 |
grg | grg 2976 |     8     6    18 |    11    32   122 |     9     6    26 |
igr | igr 2969 |     8     8    18 |    11    32   120 |  ----  ----  ---- |
igs | igs 2890 |     7     7    17 |    12    33   120 |  ----  ----  ---- |
jpl | jpl 2954 |    10    11    22 |    11    32   117 |  ----  ----  ---- |
mit | mit 2976 |     8     7    23 |    11    31   120 |    10     8    21 |

Table 5.1629.3   GPS week: 1629   Day: 3   MJD: 55650.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |     7     7    27 |     5    10    23 |     8    13    21 |
emr | emr 2955 |     8     7    29 |     7     8    25 |    10     9    28 |
esa | esa 2976 |     8     6    21 |     4     7    27 |     8     7    18 |
gfz | gfz 2949 |     8     7    22 |     5     7    22 |    13    16    19 |
grg | grg 2975 |     8     8    24 |     5     7    29 |     9    11    19 |
igr | igr 2942 |     7     6    19 |    11     7    44 |     9    10    19 |
igs | igs 2894 |     7     6    21 |    12     7    45 |     9    11    19 |
jpl | jpl 2951 |     9     8    27 |     5     8    26 |     9     8    20 |
mit | mit 2976 |    10     9    34 |     5     9    25 |    14    14    25 |

Table 5.1629.4   GPS week: 1629   Day: 4   MJD: 55651.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3026 |     8     7    23 |     7     8    28 |     7     9    18 |
emr | emr 2956 |     9    12    27 |     8    10    38 |    11    12    24 |
esa | esa 2976 |     8    10    27 |     6     9    26 |    10    11    21 |
gfz | gfz 2958 |     8     9    25 |     6     9    28 |     9    10    18 |
grg | grg 2975 |     8    10    28 |     6    10    30 |     9     9    19 |
igr | igr 2974 |     8    10    24 |     7     9    25 |     9    10    19 |
igs | igs 2962 |     8     9    26 |     7     8    26 |     8    10    18 |
jpl | jpl 2954 |    11    12    31 |     8    11    28 |    10    16    25 |
mit | mit 2976 |     8    10    31 |     9    11    27 |    13    17    28 |

Table 5.1629.5   GPS week: 1629   Day: 5   MJD: 55652.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3039 |     8     8    17 |     7     9    29 |    23     8    63 |
emr | emr 2956 |     8    11    21 |     8    10    29 |    25     7    57 |
esa | esa 2976 |     6    10    18 |     6     9    28 |    26     9    66 |
gfz | gfz 2949 |     6    10    19 |     6     8    28 |    29    10    67 |
grg | grg 2976 |     7    10    20 |     7     8    32 |    29    11    66 |
igr | igr 2954 |     6     8    16 |     6     9    26 |    25     8    62 |
igs | igs 2934 |     6     9    17 |     6     8    26 |    25     9    62 |
jpl | jpl 2955 |     9    10    18 |     7     9    28 |    26     8    79 |
mit | mit 2976 |     7    10    17 |     6     8    35 |    21    10    52 |

Table 5.1629.6   GPS week: 1629   Day: 6   MJD: 55653.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3026 |     8    10    25 |  ----  ----  ---- |    12    11    30 |
emr | emr 2956 |     9    14    33 |  ----  ----  ---- |    11    15    32 |
esa | esa 2976 |     7    11    29 |  ----  ----  ---- |    12    13    28 |
gfz | gfz 2943 |     8    10    33 |  ----  ----  ---- |    13    14    27 |
grg | grg 2976 |     7    10    26 |  ----  ----  ---- |    16    15    40 |
igr | igr 2934 |     7    11    26 |  ----  ----  ---- |    11    11    26 |
igs | igs 2874 |     8    11    27 |  ----  ----  ---- |    10    13    30 |
jpl | jpl 2955 |     9    13    29 |  ----  ----  ---- |    12    15    30 |
mit | mit 2976 |    10    16    41 |  ----  ----  ---- |    13    13    33 |


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 6.1629   GPS week: 1629   MJD: 55647.500-55653.500

                                                         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     -54     106      67      1 |       6     16
            |      11      26     105      67      5 |       2
emr   uuuuu |      32      -6      38     299     -2 |      61     63
            |      27      13      50      89      9 |       3
esa   uuuuu |     -56     -25      -3    -133      0 |      15     22
            |      18      22      92      67      7 |       4
gfz   uuuuu |     -61      55       7    -108     -3 |      25     30
            |      26      33      72      59     13 |       3
grg   uuuux |      51     -33      27      15    -15 |       0     38
            |      58      56     172     106     46 |       7
igr   xxxxx |     -48      45      55     -33      0 |      10     20
            |      24      24      81      42     10 |       6
irf   xxxxx |      13       4     -90     -43    -17 |      10     30
            |      16      17     166      57      7 |       6
jpl   uuuuu |     -10     -40     165      61     -4 |      22     26
            |      45      21     101     161      7 |       3
mit   uuxuu |       3       3    -161     -92    -18 |      31     41
            |      30      20     245      86      5 |       5
ngs   uuuuu |      52      51     -21     215      3 |       6     12
            |      41      74      64     115      4 |       3
sio   uuuuu |     108     -26    -213     -84    -13 |      72     77
            |      23      20     198      62      6 |       5


Table 7.1629.0   GPS week: 1629   Day: 0   MJD: 55647.500

                                                         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 |     -16     -91     -12      45     -7 |       3     16
emr   uuuuu |      38      -4      41     293      1 |      56     60
esa   uuuuu |     -62     -22      61    -236      4 |       8     22
gfz   xxxxx |     -23     116    -103    -139      9 |      20     30
grg   uuuux |     -55     -77     245    -197    -67 |      12     31
igr   xxxxx |     -88      78     -11    -103     13 |       1     23
irf   xxxxx |      11      12    -351    -119    -27 |      13     33
jpl   uuuuu |     -15     -23     -16     209      1 |      17     26
mit   uuxuu |       9      12    -489    -201    -26 |      32     44
ngs   uuuuu |      55      98      16     377      1 |       1     14
sio   uuuuu |     100     -32    -532    -141    -18 |      70     77

Table 7.1629.1   GPS week: 1629   Day: 1   MJD: 55648.500

                                                         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 |     -13     -33     222     149      7 |       3     16
emr   uuuuu |      80     -25      68     416      5 |      58     62
esa   uuuuu |     -87     -55      58    -162     10 |      11     22
gfz   uuuuu |     -88      29     -66     -92     -8 |      23     31
grg   uuuux |      60     -47     -17      -3    -92 |       5     34
igr   xxxxx |     -56      27     106     -23     13 |       4     22
irf   xxxxx |      17     -26    -187    -113    -18 |      13     33
jpl   uuuuu |      65     -18     151     185     -3 |      20     27
mit   uuxuu |      25     -28    -349    -214    -16 |      32     44
ngs   uuuuu |      43     162      42     310      0 |       2     14
sio   uuuuu |     109     -62    -304    -174    -11 |      71     78

Table 7.1629.2   GPS week: 1629   Day: 2   MJD: 55649.500

                                                         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 |     -17     -58      -2      69      2 |       6     17
emr   uuuuu |      44     -15      88     206     -9 |      63     65
esa   uuuuu |     -53     -38     -78     -65      4 |      16     24
gfz   uuuuu |     -52      51     -11    -152    -18 |      27     32
grg   uuuux |      38     -47     153     -19     -6 |      -2     42
igr   xxxxx |     -61      68     170     -61      1 |      10     22
irf   xxxxx |      32      15    -216     -34    -21 |      14     33
jpl   uuuuu |      22     -35     296     -34     -3 |      22     28
mit   uuxuu |      43      15    -383     -59    -19 |      35     45
ngs   uuuuu |      -2      49      32     289      5 |       5     13
sio   uuuuu |     133     -16    -329     -85    -16 |      75     81

Table 7.1629.3   GPS week: 1629   Day: 3   MJD: 55650.500

                                                         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     -18      72      -4     -3 |       9     16
emr   uuuuu |      31     -12     -53     253     -9 |      65     67
esa   uuuuu |     -64     -26      35     -66    -12 |      20     24
gfz   uuuuu |     -58      76      57    -149    -15 |      29     32
grg   uuuux |     100     -42      24      32     28 |      -3     42
igr   xxxxx |     -30      60     -29     -15     -9 |      15     19
irf   xxxxx |      11       8     -50     -42    -20 |      15     32
jpl   uuuuu |     -19     -43     181      51     -3 |      25     28
mit   uuxuu |       4       7    -104     -85    -18 |      36     45
ngs   uuuuu |      24      24     -57     189      7 |       8     12
sio   uuuuu |     112     -23    -217     -39    -18 |      78     82

Table 7.1629.4   GPS week: 1629   Day: 4   MJD: 55651.500

                                                         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 |      -9     -40      44      59      4 |       7     16
emr   uuuuu |       7      13      -6     394     -9 |      63     65
esa   uuuuu |     -26       5      24    -196     -6 |      18     23
gfz   uuuuu |     -93      55     101    -109     -6 |      28     31
grg   uuuux |      81     -31     -87     107     17 |      -5     41
igr   xxxxx |     -15      45     -19      17     -9 |      15     19
irf   xxxxx |      -5      26      -5      -1    -14 |      11     32
jpl   uuuuu |     -80     -41      97     228    -13 |      25     28
mit   uuxuu |     -31      32     -19     -57    -16 |      33     44
ngs   uuuuu |      92     -63     -36      84      6 |       9     12
sio   uuuuu |      82       2    -146     -52    -12 |      76     80

Table 7.1629.5   GPS week: 1629   Day: 5   MJD: 55652.500

                                                         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 |      -6     -57     230      -8     -1 |       6     15
emr   uuuuu |       0       4      54     344     -5 |      61     62
esa   uuuuu |     -52       4    -180     -92      0 |      16     21
gfz   uuuuu |     -79      15      39    -130     -2 |      25     29
grg   uuuux |     114     -74     138      93     10 |      -7     40
igr   xxxxx |     -54      19      32     -51     -7 |      13     17
irf   xxxxx |      -9      -3      80     -33    -16 |       5     26
jpl   uuuuu |     -25     -81     220       6    -13 |      23     26
mit   uuxuu |     -41      -8     113     -57    -19 |      27     37
ngs   uuuuu |     119      92      -4     175      3 |       8      9
sio   uuuuu |      80     -30      29    -103    -14 |      71     75

Table 7.1629.6   GPS week: 1629   Day: 6   MJD: 55653.500

                                                         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 |      17     -79     185     162      5 |       4     13
emr   uuuuu |      25      -4      73     188     15 |      58     60
esa   uuuuu |     -49     -38      56    -114      1 |      16     21
gfz   uuuuu |     -36      42      32      18     20 |      23     25
grg   uuuux |      16      87    -267      93      2 |      -4     38
igr   xxxxx |     -33      21     131       5     -4 |      12     17
irf   xxxxx |      30       1      95      38     -4 |      -2     20
jpl   uuuuu |     -18     -37     223    -217      4 |      19     23
mit   uuxuu |       9      -9     105      28     -8 |      21     29
ngs   uuuuu |      33      -4    -142      78     -3 |       9     10
sio   uuuuu |     138     -17       8       8     -1 |      65     67



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