[IGSREPORT-20199] Wk 1654 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Oct 6 06:51:29 PDT 2011


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1654   (Sep 18, 2011 - Sep 24, 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:

igs1654[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1654[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1654[0-6].cls  IGS GPS clock combination summary report.
igs16547.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16547.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 of poorer consistency (GRG),
    they 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  |  COD   | 30
                0  |  EMR   | 9 30 9 KHAJ KHAJ
                0  |  ESA   | 30 IRKJ
                0  |  GFZ   | 7 9 11 27 30 COCO MDVJ
                0  |  GRG   | AMC2 IRKJ
                0  |  JPL   | 4 27 IRKJ
                0  |  MIT   | 1 9 27 1 4 8 9 27 DAV1 NICO DAV1 NICO
                1  |  COD   | HARB
                1  |  EMR   | 9 9
                1  |  ESA   | YELL IISC IRKJ KOSG UNSA YELL
                1  |  GFZ   | 7 9 11 27 30 HARB
                1  |  GRG   | AMC2
                1  |  JPL   | 4 8 9 27 NICO
                1  |  MIT   | 1 9 27 1 4 8 9 27 DAV1 DAV1
                2  |  COD   | WROC WROC
                2  |  EMR   | 9 27 9 27 MATE
                2  |  ESA   | IISC IRKJ UNSA
                2  |  GFZ   | 7 9 11 27 30 31 KOUC MAW1 MDVJ NYAL
                2  |  GRG   | IRKJ TLSE USN3
                2  |  JPL   | 4 9
                2  |  MIT   | 1 9 27 1 9 27
                3  |  COD   | 30 HARB YELL
                3  |  EMR   | 9
                3  |  ESA   | IRKJ
                3  |  GFZ   | 7 9 11 27 30 31 CEDU DAV1 MDVJ
                3  |  GRG   | IRKJ USN3
                3  |  JPL   | 27 MCM4
                3  |  MIT   | 1 9 17 27 1 17 24 27 30 MAW1
                4  |  EMR   | 9 27 9 27 KHAJ KHAJ
                4  |  ESA   | 30 30 MAR6 IRKJ MAR6 REUN
                4  |  GFZ   | 7 9 11 27 30 31 ISPA MDVJ RAMO
                4  |  GRG   | IRKJ TLSE USN3
                4  |  JPL   | 9 27 IRKJ
                4  |  MIT   | 1 9 15 27 1 9 15 27 GUAT
                5  |  COD   | BOGT
                5  |  EMR   | 9
                5  |  ESA   | IRKJ
                5  |  GFZ   | 7 9 11 27 30 31 AREQ BRAZ MDVJ QAQ1 SANT
                5  |  GRG   | AMC2 IRKJ NKLG
                5  |  JPL   | 27
                5  |  MIT   | 6 9 27 6 9 27 KOSG KOSG TLSE
                6  |  EMR   | 9 9
                6  |  ESA   | IRKJ KOSG UNSA
                6  |  GFZ   | 7 8 9 11 27 30 31 HARB MDVJ
                6  |  GRG   | IRKJ TLSE USN3
                6  |  JPL   | 9 27 IRKJ
                6  |  MIT   | 1 9 27 1 9 27

 5. The following table lists all maneuvered satellites for this week.
    The solutions from COD and ESA, which modeled the maneuver, are used
    that day for combination. An associated accuracy code of 0 (unknown) 
    is given if only one AC is left (no redundancy). For the long arc  
    evaluation the arc is split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G16 | 2011_09_20 | 2011081 

 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   |  27
                5  |  MIT   |   1
                6  |  MIT   |   1

 7. 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 G01 |    |    |    |    |    |    |  4 |

 8. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011
    (GPS Week 1631, day 6, MJD 55667) 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.  The IGS05 frame
    is also the basis for the homogeneously reprocessed IGS products from GPS
    Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products,
    are based on the IGS realization of the ITRF2008 reference frame (IGS08).
    For more information see IGSMAIL #6354.
    

 9. 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  |     .6     .4     .4     -34    -12     22     .0 
       EMR  |   -8.5    5.2    6.6     -41     -8    -16     .18
       ESA  |    1.2    4.2   18.2      39    -21     68    -.04
       GFZ  |   -1.3     .8    -.1     -45     28      4    -.17
       GRG  |   -1.6    5.7   22.3     -22      9      1     .06
       JPL  |   -1.5    6.8    7.5     -79     58     21     .03
       MIT  |   -2.2    5.0   17.7     -23     13    -23    -.01
       NGS  |     .6    -.3   10.9     -40      4    -11     .16
       SIO  |    4.2    2.4   -1.4      32    -96      3     .0 


10. 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.

11. 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.

12. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011
    (GPS Week 1631, day 6, MJD 55667) the absolute antenna model is introduced
    (IGSMAIL #5438). The antenna phase center offsets and phase center
    variations are given in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed
    IGS products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which
    caused their RMS clock residuals to be higher during that period than for
    the other centres; since GPS Week 1632 the JPL solution is excluded from
    the weekly SINEX combination.

    
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 1.1654.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1654.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 2.1654.[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 3.1654.[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 5.1654.0-6).

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 1654 summary.                       (Sep 18, 2011 - Sep 24, 2011)

Table 1.1654.a   GPS week: 1654   MJD: 55822.000-55828.000

         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  255|    0     0     0    14     7     9  -.27    8    7 |    -708     211     27    104
        |    0     0     0     8    19    20   .01           |     478    1067
emr   90|   -1     0     1    22     6    14   .46   20   20 |    2033     447     26    125
        |    1     1     1    26    30    14   .05           |     878    1409
esa  136|    1     0     0   -98   105   -14   .24    8    8 |    -549     574     25    191
        |    0     0     1    30    23    14   .03           |    1449    2095
gfz  194|    0     2    -1    40   -81    12  -.21   12   11 |    -152     123     26    103
        |    0     0     0    73    62    10   .03           |     291     582
grg  128|    2     0     9     0   -15    19   .59   16   15 |    -237     246     54    227
        |    1     0     1    15    20     7   .02           |     449     852
igr  n/a|    0     0     0   -35    -6   -41  -.06    5    5 |    5361     720     22     85
        |    0     0     0    22    12    15   .02           |    1341    1425
jpl  140|    1     0    -1   111  -151    34   .60   16   16 |    1808     412     21    107
        |    1     1     0    11    15    50   .03           |     812    1412
mit  268|   -1     0    -1    -1   -40   -17  -.39   12   10 |    -345     340     29    200
        |    1     0     0    19    21    15   .03           |     510     953
ngs  217|    0     0     0    44   -13    -1  -.26   11    8 |    -659     156   2050   3945
        |    1     0     1    43    31    19   .02           |     386     850
sio  249|    1     1    -5  -110   183   -39   .01   20   20 |     ---     ---    ---    ---
        |    1     0     0    24    23    18   .04           |     ---     ---


Table 1.1654.b   GPS week : 1654   MJD: 55822.000-55828.000   

         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  |   11   14   14   22   21   30   39 |
   2  |    4    4    4    4    4    4    4 |
   3  |    4    4    4    3    4    4    4 |
   4  |    5    6    5    5    5    5    6 |
   5  |    4    4    4    4    4    4    5 |
   6  |    4    4    4    3    4    4    4 |
   7  |    5    5    4    4    5    5    4 |
   8  |    5    4    4    4    5    5    5 |
   9  |    8    9    6    6    5    5    6 |
  10  |    4    3    3    4    4    4    4 |
  11  |    4    4    4    4    4    3    4 |
  12  |    5    6    5    5    5    5    6 |
  13  |    4    4    4    4    4    4    4 |
  14  |    6    6    5    4    4    5    4 |
  15  |    5    5    5    4    4    5    5 |
  16  |    6    5    0    6    5    5    5 |
  17  |    4    5    4    5    4    4    4 |
  18  |    5    5    4    4    5    5    5 |
  19  |    4    5    4    4    5    5    4 |
  20  |    5    5    4    4    4    4    4 |
  21  |    4    4    4    4    5    4    4 |
  22  |    5    5    4    4    5    5    5 |
  23  |    5    5    5    5    5    5    5 |
  24  |    6    7    6    6    7    7    6 |
  25  |    4    5    5    5    4    4    4 |
  26  |    3    3    3    3    4    4    4 |
  27  |   10    9    8    9   11   11    9 |
  28  |    5    5    5    5    6    5    5 |
  29  |    4    5    5    4    5    4    5 |
  30  |    4    4    4    4    4    4    4 |
  31  |    5    5    4    5    5    5    5 |
  32  |    4    4    4    4    4    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 2.1654.0   GPS week: 1654   Day: 0   MJD: 55822.000                            

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  255|    0     0     0    14    18     1  -.27    9    8 |    -548     324     21     71
        |                     14   -32                       |
emr   90|   -1     0    -1    36    51    30   .40   22   22 |     770    2041     26    108
        |                    -20   -68                       |
esa  136|    1     0     0   -63   114   -17   .18    9    9 |    -491     750     22    203
        |                     12   -34                       |
gfz  194|    0     3    -1   -14  -117    18  -.19   11   11 |    -125      30     26    100
        |                    -54    80                       |
grg  128|    3     0     8   -22   -13    26   .59   16   16 |    -316     671     58    248
        |                     51    23                       |
igr  n/a|    0     0     0   -53    -7   -51  -.08    5    5 |    3298    2205     21     79
        |                    -18    24                       |
jpl  140|   -1    -3    -1    96  -132   -13   .61   16   16 |     918    2048     20    125
        |                    -53    38                       |
mit  268|   -1    -1    -1   -25   -75    11  -.34   14   10 |    -193     737     19    177
        |                     19     2                       |
ngs  217|   -1     0     0    79    27     2  -.25   12    8 |    -448      79   1897   4083
        |                    -85   -15                       |
sio  249|    0     0    -6  -104   153   -11  -.01   23   22 |     ---     ---    ---    ---
        |                     -2   -76                       |

Table 2.1654.1   GPS week: 1654   Day: 1   MJD: 55823.000                            

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  255|    1     0     1    30   -11     2  -.28   10    9 |     179   -1834     23    128
        |                    -40    14                       |
emr   90|   -1     0     0    58    -8     1   .39   21   21 |    2065    -811     23    112
        |                    -20   -20                       |
esa  136|    0    -2     0   -56    69   -10   .25    9    8 |    2497   -3867     21    195
        |                     19    -2                       |
gfz  194|    0     3    -1  -100   -18    24  -.27   13   13 |    -619     749     25    114
        |                    -29    86                       |
grg  128|    0     1     8     2   -29     9   .55   18   17 |      40    -615     48    256
        |                     -1    18                       |
igr  n/a|    0    -1    -1    -8   -22   -41  -.06    7    6 |    4734    -756     20     92
        |                      4    29                       |
jpl  140|    0     0    -2   130  -168    29   .63   16   15 |    2045   -1195     19    106
        |                    -82    89                       |
mit  268|   -2     0     0   -31   -18   -19  -.41   12    9 |     536   -1552     23    196
        |                     22    -8                       |
ngs  217|    0     0     0   127   -14    15  -.29   12    9 |    -157   -1097   1896   3939
        |                    -21    82                       |
sio  249|    0     0    -5  -133   199   -38  -.04   19   18 |     ---     ---    ---    ---
        |                     -1  -110                       |

Table 2.1654.2   GPS week: 1654   Day: 2   MJD: 55824.000                            

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  255|    0     0     0    15    -4    24  -.25    8    7 |   -1225     441     30    141
        |                     47     5                       |
emr   90|   -4    -1     3     9    -6    -2   .50   21   20 |    1651    1714     26    134
        |                     -6   -11                       |
esa  136|    1     0     1  -142    91     1   .23    8    8 |   -1880    2218     26    189
        |                     70   -30                       |
gfz  194|    1     2     0    61   -25     3  -.20   12   10 |    -137     174     30    118
        |                    -29    56                       |
grg  128|    2     1    10    -9   -17    12   .60   15   16 |    -820     877     54    210
        |                     20   -22                       |
igr  n/a|    0     0     0   -44   -10   -44  -.04    5    5 |    4525    1919     22     95
        |                     11    -2                       |
jpl  140|    3    -1    -1    98  -142    85   .64   16   16 |    1343    1405     23    105
        |                    -71   133                       |
mit  268|   -2     0    -2    16   -39   -21  -.39   11    9 |    -740     447     28    188
        |                     -6     4                       |
ngs  217|    0     0     0    38   -28   -24  -.24   10    8 |   -1039     148   2193   4120
        |                    -30    23                       |
sio  249|    0     1    -7   -62   176   -67  -.03   18   20 |     ---     ---    ---    ---
        |                    -28   -84                       |

Table 2.1654.3   GPS week: 1654   Day: 3   MJD: 55825.000                            

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  255|    0     0     0    10    15   -24  -.28    8    7 |   -1008    1655     26     83
        |                     17   -19                       |
emr   90|   -1    -2     1    -7   -21     3   .49   20   20 |    2992    -515     22    115
        |                     28    44                       |
esa  136|    1     0     0  -116   139   -17   .27    9    9 |    -252     479     26    191
        |                     38    -3                       |
gfz  194|    0     1    -1    99   -93     8  -.24   12   10 |    -234      86     26    101
        |                    -34    26                       |
grg  128|    4     0     7    -7   -35    25   .61   14   14 |    -158     152     59    248
        |                     40     0                       |
igr  n/a|    0     0     0   -63     1   -58  -.06    5    5 |    6115     -59     21     70
        |                     13    46                       |
jpl  140|    2     0    -1   116  -147    75   .58   16   15 |    2392    -308     24    100
        |                    -77   116                       |
mit  268|   -2     0    -1     5   -52    -6  -.40   10    9 |    -112     509     28    178
        |                    -22    12                       |
ngs  217|    0     1     0    12    -7    18  -.22   11    8 |   -1029    1549   2366   4010
        |                     37   -48                       |
sio  249|    0     0    -6  -129   179   -47  -.01   19   19 |     ---     ---    ---    ---
        |                     -1   -86                       |

Table 2.1654.4   GPS week: 1654   Day: 4   MJD: 55826.000                            

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  255|    0     0     0     2    -5    29  -.26    8    7 |   -1073     783     29     91
        |                     23    44                       |
emr   90|    0     0     1   -12   -27    11   .53   21   21 |    2425     437     23    136
        |                     34    20                       |
esa  136|    1     0    -1   -95    99   -28   .26    8    7 |   -1375    2429     26    184
        |                     57   -14                       |
gfz  194|    0     2    -1   100   -45    17  -.23   13   12 |    -309     814     24     96
        |                    -37    58                       |
grg  128|    2     0     9     4   -32    27   .61   16   15 |    -722    1507     48    205
        |                     35    16                       |
igr  n/a|    0    -1     0   -52   -16   -52  -.05    4    4 |    5831    1022     22     72
        |                     -1    63                       |
jpl  140|    1     0    -1   118  -166    96   .58   17   17 |    1763     681     21    105
        |                    -49   109                       |
mit  268|   -3     0    -1    18   -10   -36  -.38   10    9 |   -1060    1536     37    215
        |                    -15     5                       |
ngs  217|    0     1     2     0   -51   -17  -.25   11    7 |   -1093     830   2096   3853
        |                    -52    63                       |
sio  249|    0     1    -6  -103   221   -55   .03   20   20 |     ---     ---    ---    ---
        |                    -10  -105                       |

Table 2.1654.5   GPS week: 1654   Day: 5   MJD: 55827.000                            

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  255|    0    -1     0    17    -4    -2  -.28    8    7 |    -813    -199     31    133
        |                     -1    -2                       |
emr   90|   -2     0     0    36    27    34   .46   19   19 |    1223    1725     31    131
        |                     -8   -49                       |
esa  136|    2     0     1   -98   100     4   .23    7    7 |   -1145     812     32    212
        |                     49   -16                       |
gfz  194|    0     2    -2    87   -72    -3  -.20   13   12 |      36     -48     31    102
        |                    -23    70                       |
grg  128|    2     0     8     9    -2    14   .61   16   14 |    -191      72     58    221
        |                      3   -38                       |
igr  n/a|    0    -1    -1   -11    -7   -29  -.07    5    5 |    5510    2001     30    115
        |                    -53    30                       |
jpl  140|    1     0    -1   112  -165   -16   .58   16   16 |    1008    1706     22     96
        |                    -38    39                       |
mit  268|   -1     0    -1    -3   -41   -23  -.41   11   10 |    -547       3     36    270
        |                     -5    19                       |
ngs  217|   -2     0    -1    26   -45    16  -.27   11    8 |    -526    -435   2121   3651
        |                    -62   -16                       |
sio  249|    1     1    -6  -118   161   -28   .03   21   20 |     ---     ---    ---    ---
        |                     12   -88                       |

Table 2.1654.6   GPS week: 1654   Day: 6   MJD: 55828.000                            

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  255|    0     0     0     7    42    32  -.26    8    7 |    -468     313     30     87
        |                     19    -1                       |
emr   90|   -1     0     1    37    33    22   .45   20   20 |    3108   -1459     32    144
        |                    -16    -9                       |
esa  136|    1     0     0  -113   125   -33   .25    9    9 |   -1203    1202     27    168
        |                     16    14                       |
gfz  194|    1     1    -3    49  -199    19  -.17   10   10 |     323    -939     24     94
        |                    -18    87                       |
grg  128|    3     0    10    26    23    18   .58   17   16 |     503    -942     57    205
        |                    -35   -78                       |
igr  n/a|    0     0    -2   -16    17   -12  -.08    5    5 |    7516   -1287     24     77
        |                    -38    36                       |
jpl  140|    0     0     0   108  -137   -16   .59   16   16 |    3191   -1450     24    112
        |                    -11    86                       |
mit  268|    0    -2    -1     7   -46   -27  -.41   13   11 |    -305     700     34    182
        |                     -5    18                       |
ngs  217|   -2     0    -1    27    23   -23  -.27   12    9 |    -327      23   1782   3962
        |                    -57   -60                       |
sio  249|    3     1    -4  -125   196   -31   .07   21   19 |     ---     ---    ---    ---
        |                     21  -115                       |

       
       
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 3.1654.0   GPS week: 1654   Day: 0   MJD: 55822.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   15  ---   17  ---  ---   19  ---   16  ---   40   11 |   148  ---  147  ---  ---  145  ---  139  ---   97   145
   2E |    5   26    9    8   13    4   18   11    7   17    4 |    13   29   18   19   19   15   22   19   19   20    16
   3  |    8   16   10   10   15    7    9   12   11   17    4 |    24   25   30   29   32   24   28   26   23   25    26
   4E |   12   19   11   10   21    4   17   10   21   20    5 |    33   48   36   38   46   35   48   39   42   38    38
   5  |    8   19    7    9   14    6   17    8    6   24    4 |    22   34   24   26   33   22   32   23   22   20    23
   6  |    6   18    8   10   15    6    9   11   14   18    4 |    24   24   28   26   32   21   27   27   23   22    25
   7E |    7   20    9    8   15    4   16   15   12   18    4 |    18   29   23   17   30   18   26   17   20   22    19
   8E |   13   14   10   10   17    3   16   13   11   22    4 |    48   50   52   48   46   47   45   50   48   41    48
   9E |   21   23   15   15   20    8   20   40   23   29    8 |   113  122  120  114  127  117  122  119  117  128   117
  10  |    7   14    5    8   16    4    9   10   12   20    3 |    22   24   21   24   34   21   21   28   23   18    23
  11E |    5   18    6    9   15    3   11   10   10   19    3 |    18   31   24   25   28   22   29   22   24   28    22
  12  |    7   22   10   12   16    7   19   12    9   31    5 |    17   28   24   26   28   19   28   22   22   22    21
  13  |    7   22    6    9   18    3   15    9    7   17    4 |    16   30   23   20   37   17   28   18   15   15    19
  14  |    7   27   10   14   20    5   16   28   12   32    6 |    20   27   27   29   32   18   22   26   22   21    21
  15  |    6   27   11   11   12    4   18   11   15   24    5 |    23   32   31   31   35   24   27   28   23   23    25
  16  |    9   24   14   13   14    8   17   20   10   30    5 |    12   25   12   12    9   10   19   14   10   12    11
  17  |    5   22   10   12   16    4   15    8   10   20    4 |    11   24   10   14   23    8   20   13   12   11    10
  18  |    8   26    6   13   14    5   18   10    8   22    4 |    24   38   28   25   31   25   36   23   27   23    26
  19  |    8   26    7   10   16    6   14    9   10   22    4 |    15   33   17   18   29   17   27   14   14   16    16
  20  |    7   20    7   12   16    5   15   13    9   26    4 |    25   37   29   27   35   27   36   24   26   28    27
  21E |    6   27    8   11   15    5   14    8   10   13    4 |    26   37   33   26   31   26   34   21   31   26    28
  22  |    7   26    7   12   14    5   19   12   12   27    4 |    21   32   26   22   31   21   30   22   24   28    22
  23  |    9   24    9   12   16    4   19    9    9   20    4 |    18   36   28   26   34   21   32   20   23   22    23
  24E |   12   26   12   11   18    6   19   20   15   22    5 |    39   46   29   39   29   36   36   33   41   36    34
  25  |   13   14    5   10   15    5   14   11    8   24    4 |    31   32   29   34   38   28   40   29   27   28    30
  26  |    6   16    7    8   14    4   11    8    7   13    3 |    24   25   25   25   31   23   23   29   21   21    24
 X27E |   23   20   24   23 8721   14   15   28  ---   27    9 |    85   79   82   80   49   78   83   78  ---   58    81
  28  |    9   21   12   17   17    3   16   10    9   34    5 |    21   32   31   34   30   25   28   33   30   32    26
  29  |    7   21    8   10   14    5   16    5    8   20    4 |    23   37   28   23   36   24   35   25   28   24    26
 X30  |    7   17    7   11   17    6  ---    7    8   17    4 |    16   19   18   20   21   13  ---   16   16   19    17
  31E |    8   24    5   11   24    5   17   10   14   14    4 |    21   28   22   20   30   20   24   14   21   19    19
  32  |    7   18    8   12   18    5   11   11    8   22    4 |    16   20   21   22   26   18   24   18   20   21    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   22    9   11   16    5   16   14   12   23      |T   30   35   34   30   34   30   34   32   27   30    32
 WRMS |    8   22    9   11   16    5   16   10    8   22      |NE  20   29   24   24   30   20   28   22   21   21    21
 MEDI |    7   21    8   11   16    5   16   11   10   22      |MD  22   32   27   26   31   22   28   23   23   22    23

Table 3.1654.1   GPS week: 1654   Day: 1   MJD: 55823.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   19  ---   20  ---  ---   17  ---   28  ---   30   13 |   111  ---  118  ---  ---  110  ---  108  ---   96   111
   2E |    8   17    9   11   17    5   17   10   13   14    4 |    11   21   17   17   14   13   18   16   19   18    13
   3  |    9   11    5   11   20    6   12    6    8   15    3 |    22   26   22   21   27   20   27   25   29   17    23
   4E |   13   32    9   10   23    8   15    9   21   12    5 |    29   47   33   30   43   30   42   33   38   33    33
   5  |    6   19    6    8   19    6   16    6   11   19    4 |    19   32   19   19   33   21   30   20   21   18    20
   6  |    8   12    6   10   21    5   10    7    8   15    3 |    18   25   21   17   24   19   23   21   24   15    20
   7E |    8   23   10   13   20    7   19    9   12   12    4 |    13   25   20   13   18   15   22   15   18   14    15
   8E |   11   12    8   11   13    6   16    9   10   19    4 |    40   42   41   44   39   42   39   45   46   40    40
   9E |   29   23   14   14   15   19   21   37   24   23    8 |   112  110  109  111  112  108  115  117  108  119   109
  10  |    7   11    6    8   15    7   10    9   11   14    3 |    17   20   17   19   25   17   16   22   22   16    18
  11E |    7   19    6   10   12    6   12    9   16   16    4 |    18   31   22   15   25   19   26   20   22   22    19
  12  |   10   23   10   15   18    5   18   13   14   28    5 |    14   28   24   22   24   18   29   16   23   18    18
  13  |   10   22    8   10   20    4   16    5    8   15    4 |    13   34   26   16   35   19   30   18   17   16    20
  14  |    8   23   13   17   18    6   17   19   10   24    5 |    17   27   24   24   27   16   24   25   23   22    20
  15  |    5   23    9   10   16    5   19    7   11   20    4 |    23   30   26   25   32   23   29   25   24   22    24
  16  |    9   22   10   15   16    6   18   13    9   26    5 |    14   29   14   15   14   16   24   16   21   14    17
  17  |    7   24    9   17   15    5   15    6   11   18    4 |    14   29   16   15   22   15   24   17   18   15    15
  18  |    9   24    8   13   15    5   15    6    9   20    4 |    17   33   25   21   27   21   31   19   21   16    20
  19  |    9   26    9   10   17    7   16    6   11   20    4 |    18   34   19   12   26   17   27   17   21   18    18
  20  |   10   19    7   14   16    7   16   11   10   19    4 |    24   36   31   25   37   27   36   21   27   22    26
  21E |    7   22    5   12   15    6   13    8   11   10    3 |    14   30   22   17   29   20   26   16   22   16    19
  22  |    7   22    8   13   14    6   17   10    7   22    4 |    15   28   22   17   27   18   28   19   19   22    18
  23  |   12   25    9   16   18    7   20    7    9   17    5 |    16   35   27   22   30   20   30   19   21   18    21
  24E |   12   27   16   11   20    7   16   21   23   20    6 |    33   39   24   31   24   28   26   24   35   23    25
  25  |   10   12    8   21   16    5   12    8    8   20    4 |    18   26   26   25   33   23   37   20   21   22    23
  26  |    5   11    5    8   16    6    9    9   12   10    3 |    22   21   20   18   24   20   22   26   18   21    21
 X27E |   19   20   26   14  ---   20   18   25  ---   21    8 |    69   67   86   70  ---   82   77   80  ---   59    73
  28  |   10   20   10   15   21    5   17    9    9   32    5 |    17   30   27   28   28   21   28   25   26   29    22
  29  |    8   25    7   14   16    6   17    5   11   18    4 |    24   36   29   23   35   28   34   26   25   26    27
 X30  |    9   18   10   14   12    4  ---    8    7   13    4 |    17   20   23   20   21   18  ---   16   18   19    19
  31E |    8   21    8   13   25    6   18   14    9   11    4 |    15   23   17   18   21   16   23   13   18   13    14
  32  |   12   18    5   14   14    7   13    9    9   17    4 |    18   24   25   23   26   21   25   20   24   23    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   21    9   13   18    7   16   12   12   19      |T   26   33   31   25   30   28   32   28   26   26    28
 WRMS |    9   21    8   13   17    6   15    9    9   18      |NE  17   28   23   20   27   19   27   20   22   19    20
 MEDI |    9   22    8   13   16    6   16    9   10   18      |MD  18   30   24   21   27   20   27   20   22   19    20

Table 3.1654.2   GPS week: 1654   Day: 2   MJD: 55824.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   15  ---   15  ---  ---   23  ---   29  ---  ---   14 |   124  ---  125  ---  ---  121  ---  123  ---  ---   124
   2E |    5   22    8    8   21    4   18   11   10   14    4 |    22   32   23   24   25   25   28   26   19   30    22
   3  |    8   13    6   13   15    4   13    6    8   13    3 |    17   18   18   24   20   17   17   22   17   18    17
   4E |   12   17   11    7   14    7   17   12   21   13    5 |    29   43   33   30   43   30   43   33   33   34    32
   5  |    7   20    8   11   18    6   17    9    9   19    4 |    15   29   20   22   28   19   28   19   20   17    17
   6  |    7   13    6    9   17    5   11    7    8   14    3 |    18   17   19   21   22   17   18   21   14   20    17
   7E |    6   21    8    8   13    6   19    8   10   11    3 |    17   27   20   17   22   17   25   16   20   20    17
   8E |   14   13    8   11   16    5   16    9    9   19    4 |    32   35   32   34   26   32   31   35   40   30    31
   9E |   16   36    6   14   16   11   22   18   13   23    6 |    71   77   72   69   76   70   76   73   74   77    71
  10  |    8   11    5    8   17    5   11    8    6   15    3 |    18   26   20   22   26   19   22   28   20   20    20
  11E |    7   18    7    9   15    5   12   11    9   11    3 |    13   24   18   22   17   17   23   23   18   19    16
  12  |    8   21   11   16   16    6   20   15   11   28    5 |    14   26   23   22   22   18   26   19   21   22    16
  13  |    5   23    7   11   18    4   16    6    8   14    4 |    14   31   15   19   36   16   27   16   17   13    15
  14  |    6   25    8   14   17    6   14   17    8   23    4 |    18   29   24   25   32   19   24   21   21   19    19
  15  |    6   24   11   11   17    5   19    6   10   19    4 |    21   29   26   28   28   23   28   20   25   20    21
 X16  |    4  ---  ---  ---  ---   43  ---  ---  ---  ---    0 |    14  ---  ---  ---  ---   58  ---  ---  ---  ---    16
  17  |    8   21    8   11   15    5   14    8   10   19    4 |    13   29   18   20   25   17   24   18   20   18    16
  18  |    6   21    7   12   13    7   17    7    7   18    4 |    20   34   23   22   33   23   35   23   23   21    22
  19  |    7   23    6    9   16    4   18   10    9   20    4 |    12   28   15   10   22   10   25   13   13   15    11
  20  |    6   20    9    9   12    4   18   12    8   19    4 |    21   36   29   25   35   24   34   21   24   25    24
  21E |    5   19    8    9   12    4   16    8    7    9    3 |    18   26   22   23   24   18   27   18   21   19    20
  22  |    6   22    8   11   14    5   15    9    7   21    4 |    15   28   21   19   29   18   29   17   20   23    17
  23  |    7   26    7   13   14    4   19    8    8   18    4 |    15   34   21   24   33   18   30   17   20   20    19
  24E |   11   27   15   10   17    5   16   20   19   24    6 |    34   41   30   37   32   33   31   30   37   31    31
  25  |    6   12    9   28   13    7   13   10    9   17    4 |    25   29   26   36   33   24   37   26   21   26    25
  26  |    8   12    7    6   15    4   11    8   10   10    3 |    21   23   25   22   28   23   22   25   22   23    21
 X27E |   16   21   16   22  ---   25   20   16  ---  ---    8 |    51   65   53   49  ---   59   57   52  ---  ---    50
  28  |    9   18    6   12   17    5   15   11    9   33    4 |    17   29   25   24   26   20   27   26   28   29    21
  29  |    8   24    8   13   13    5   19    7   10   19    4 |    19   33   28   24   33   24   34   20   23   18    22
 X30  |    7   14    8   13   12    4  ---    8    8   14    3 |    11   18   15   18   16   13  ---   16   13   21    13
  31E |    5   24    8   10   17    5   19   12   11   15    4 |    22   33   23   17   27   21   26   19   24   22    21
  32  |    8   18    7    8   15    3   13   10    7   16    3 |    11   17   21   17   24   16   20   18   18   20    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   21    8   12   15    5   16   11   10   18      |T   24   31   28   25   29   27   30   27   23   23    25
 WRMS |    7   20    8   10   16    5   16    9    8   20      |NE  16   27   21   22   27   20   26   20   20   20    18
 MEDI |    7   21    8   11   15    5   16    9    9   18      |MD  18   29   23   22   27   19   27   21   21   20    20

Table 3.1654.3   GPS week: 1654   Day: 3   MJD: 55825.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   25  ---   24  ---  ---   28  ---   45  ---  ---   22 |   146  ---  150  ---  ---  151  ---  150  ---  ---   146
   2E |    7   20    9   17   16    4   15    9   10   15    4 |     9   21   16   21   12   11   17   12   11   16    11
   3  |    6   14    7    9   12    5   12    6    6   13    3 |    16   20   22   22   24   18   24   21   18   19    18
   4E |   10   20    9    8   17    6   16   10   23   15    5 |    26   42   32   30   41   29   41   32   32   34    31
   5  |    6   20    8    7   12    5   18   10   13   19    4 |    21   30   22   21   30   22   31   22   22   19    20
   6  |    6   16    6    9   12    5   10    7    8   14    3 |    15   19   23   21   23   18   20   21   17   21    17
   7E |    6   23    7    9   17    3   19   10    7   10    4 |    14   29   19   14   20   14   23   13   16   18    14
   8E |   13   14    9   10   11    5   17    9    5   21    4 |    37   37   37   39   35   35   33   38   37   30    35
   9E |   13   22   13   15   16    8   20   17   15   29    6 |    62   67   68   58   71   61   71   65   62   75    64
  10  |    6   13    8    8   13    4   10    7   13   16    3 |    21   25   19   25   29   20   22   27   24   23    21
  11E |    6   17    9    8   12    4   13    8   11   13    3 |     9   22   18   17   22   14   22   16   13   16    13
  12  |    9   24    8   15   13    5   17   18   10   29    5 |    14   28   23   23   23   19   25   23   19   25    17
  13  |    5   21    7   11   17    4   16    7    8   17    4 |    13   31   22   22   37   17   28   16   19   15    18
  14  |    6   18   11   12   14    5   13   11   10   18    4 |    16   22   24   23   26   17   21   17   18   17    16
  15  |    6   23    8   10   12    4   17    6    5   19    4 |    24   28   29   24   28   23   26   22   19   22    21
 X16  |    6  ---   10  ---  ---   14   20    6   10   26    5 |     8  ---   16  ---  ---   13   23   13   13   13     9
  17  |    6   23   10   16   12    5   14    7   12   19    4 |    14   28   15   20   22   14   24   15   20   15    14
  18  |    6   21    9    9   13    4   18    8    9   22    4 |    19   37   29   25   31   25   36   23   22   26    23
  19  |    9   24    6   10   15    6   17    9   10   20    4 |    11   31   19   14   26   14   26   14   17   15    14
  20  |    9   19    7   10   12    5   17   11   11   19    4 |    22   33   32   24   33   25   33   24   23   26    24
  21E |    6   18    7    9   11    5   14    9    7   12    3 |    12   24   21   17   24   17   25   15   17   17    15
  22  |    6   18    8   11   12    4   17   11   13   23    4 |    15   29   23   20   27   19   31   18   17   28    18
  23  |    7   25    8   16   15    5   18    9   10   19    4 |    13   32   21   26   30   17   27   12   20   17    17
  24E |   11   25   14   10   22    6   17   20   21   21    6 |    30   36   24   32   22   27   27   23   37   27    25
  25  |    8   15    9   26   13    5   13    9   10   19    5 |    25   30   29   34   36   25   37   27   24   27    25
  26  |    7   17    7    6    9    3   12    8    7   10    3 |    21   22   22   23   25   21   21   24   23   21    20
 X27E |   14  ---   21   20  ---   16   21   17  ---  ---    9 |    45  ---   47   43  ---   50   55   48  ---  ---    44
  28  |    9   19   13    9   14    5   17   10    9   35    5 |    19   31   27   26   26   24   30   29   26   31    23
  29  |    7   23    9    8   12    4   16    7    9   24    4 |    29   39   32   33   42   32   39   30   32   31    32
 X30  |    6   15    9   11   11    4  ---    6    8   14    3 |    12   17   20   22   20   14  ---   17   15   20    15
  31E |    9   17   10   10   22    5   19   12   14   14    4 |    20   31   27   23   28   23   27   23   25   28    22
  32  |    8   17    8   10   14    4   12    8   13   14    4 |    10   17   20   17   21   14   19   15   18   17    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    9   12   14    5   16   10   11   19      |T   24   29   29   25   28   26   29   27   22   23    25
 WRMS |    7   20    9   10   14    5   15    9    8   19      |NE  17   27   23   23   27   19   27   20   20   21    18
 MEDI |    7   19    9   10   13    5   17    9   10   19      |MD  16   29   23   23   26   19   26   22   19   21    18

Table 3.1654.4   GPS week: 1654   Day: 4   MJD: 55826.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   34  ---   24  ---  ---   24  ---   49  ---   38   21 |   120  ---  121  ---  ---  118  ---  120  ---   94   115
   2E |    6   23    6    9   14    3   18    8    9   17    4 |    11   23   10   12   12   10   19   14   13   16    10
   3  |    7   14    6   10   17    5   10    7   10   14    3 |    13   16   18   21   20   12   18   17   15   16    15
   4E |   12   20    7    9   19    6   18   11   23   13    5 |    26   38   31   28   40   26   40   31   30   32    29
   5  |    6   21    6   11   16    4   17   11    8   20    4 |    17   28   19   20   30   18   28   22   22   17    19
   6  |    5   14    7   10   18    4   10    7    9   15    3 |    16   18   20   23   23   14   20   19   17   17    17
   7E |    8   25    6   11   22    4   19   10   14   13    4 |    13   25   17   16   21   12   24   15   24   14    15
   8E |   13   17    7   12   18    4   14    9   13   18    4 |    31   36   33   33   34   30   34   33   34   25    31
   9E |   11   20    8   13   18    6   22   12   13   29    5 |    40   50   51   44   58   43   58   48   43   58    47
  10  |    6   15    4   10   15    4   11    7   12   14    3 |    21   25   22   20   28   20   23   26   21   19    21
  11E |    8   16    7   13   16    4   10    9    7   14    3 |    11   23   16   17   24   13   20   18   16   14    14
  12  |    8   23    8   12   14    5   19   18    9   27    5 |    15   27   22   21   25   19   27   24   19   23    18
  13  |    6   21    5   12   17    3   16    8    9   16    4 |    15   32   21   19   34   16   30   15   19   15    18
  14  |    6   20    7   12   17    5   17    8    9   19    4 |    14   26   16   20   26   13   23   17   15   17    14
  15  |    6   30    8   12   12    4   18    8    8   19    4 |    21   33   24   26   32   22   29   23   24   20    22
  16  |    7   23    9   17   15    7   19   10    8   28    4 |    15   25   15   18   11   15   22   12   14   13    15
  17  |    6   22    8   10   14    3   15    7    6   17    3 |    14   28   17   12   23   14   25   16   18   16    15
  18  |    7   20    8   14   15    4   18    8    7   27    4 |    14   30   22   18   28   17   31   17   17   16    17
  19  |    7   27    8   10   15    5   18    7   11   21    4 |    12   32   16   10   23   11   25   13   16   15    12
  20  |    7   22    6   11   15    4   18   11    7   17    4 |    20   37   29   24   34   24   33   21   25   22    24
  21E |    8   24    8   12   17    3   20   12   11   18    4 |    10   29   17   19   26   13   32   14   17   13    13
  22  |    6   20    8   13   15    3   19   10   11   30    4 |    14   29   17   18   25   14   28   18   17   26    15
  23  |    6   27    6   14   13    3   22    9    7   20    4 |    14   34   21   20   28   15   29   13   15   15    17
  24E |   11   24   13   14   23    6   19   22   23   23    6 |    31   33   26   34   24   27   26   23   36   25    26
  25  |    7   14    7    8   13    4   15   10    8   19    3 |    22   31   25   26   35   22   35   26   23   26    24
  26  |    6   17   10    8   12    2   13    7    9   10    3 |    20   20   19   20   24   18   21   23   23   18    19
 X27E |   18   31   40   21  ---   22   24   18  ---   30   11 |    31   41   64   29  ---   45   47   38  ---   48    37
  28  |   11   21    8   29   14    5   18    9    8   38    6 |    19   31   24   45   29   24   29   29   26   35    25
  29  |    7   24    8   18   11    3   18    6    9   20    4 |    27   41   31   34   40   30   43   29   29   28    31
 X30  |    7   16    5   16   13    4  ---    6    9   13    3 |    15   22   20   27   21   16  ---   20   20   21    19
  31E |    6   21    7    8   28    4   20   13    8   14    4 |    16   26   18   18   26   16   23   21   23   21    18
  32  |    7   19    9    9   15    5   14   11    8   13    3 |    13   18   20   17   22   15   21   18   18   17    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   21    8   13   16    4   17   10   11   20      |T   21   29   26   22   27   22   28   24   21   24    23
 WRMS |    7   21    7   12   15    4   17    9    7   20      |NE  16   27   20   21   26   17   27   19   19   19    18
 MEDI |    7   21    7   12   15    4   18    9    9   18      |MD  15   29   20   20   26   16   27   20   19   18    18

Table 3.1654.5   GPS week: 1654   Day: 5   MJD: 55827.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   32  ---   28  ---  ---   30  ---  115  ---  ---   30 |   142  ---  139  ---  ---  136  ---  154  ---  ---   139
   2E |    7   17    5   12   15    4   14    7   11   14    3 |    15   22   17   15   19   14   22   19   13   22    15
   3  |    7   13    6   16   16    6   10   11   11   15    3 |    21   25   23   27   26   19   21   25   26   20    22
   4E |   10   20    9   13   25    4   17   11   23   13    5 |    28   40   33   31   44   30   43   33   33   35    32
   5  |    5   18    7   14   12    5   18    8    7   22    4 |    17   29   21   19   27   19   28   21   21   18    18
   6  |    5   13    5   15   15    4   11   12   12   14    3 |    18   23   20   25   24   17   19   21   21   19    19
   7E |    7   20    5   13   18    4   19   15   10   17    4 |    16   27   19   18   24   17   25   21   22   25    17
   8E |   11   15    8   13   17    7   17   10   11   18    4 |    36   38   38   39   34   39   34   41   39   34    36
   9E |   12   19   10   14   14    5   20   13   13   26    5 |    62   60   67   61   71   62   67   61   66   74    63
  10  |    8   11    5   11   13    4   11    9   10   16    3 |    22   22   22   21   22   20   23   26   20   23    21
  11E |    6   13    4   11   14    4    8    9    7   18    3 |    13   23   17   17   20   13   22   16   13   17    14
  12  |    8   19    7   12   13    4   19   14    8   29    4 |    17   27   22   17   24   19   28   27   22   24    19
  13  |    5   21    5   11   18    3   14    7    6   19    3 |    14   31   18   19   33   15   28   14   17   15    16
  14  |    7   20    7   16   12    4   19   13   12   13    4 |    16   25   19   24   24   15   24   20   16   17    16
  15  |    8   27    9   14   12    5   21    9   10   20    4 |    22   32   28   28   29   24   29   24   30   23    23
  16  |    8   20    8   18   14    7   17    8   13   28    4 |    13   25   14   19   13   14   21   14   16   14    13
  17  |    6   19    5   11   12    4   14    9    9   19    3 |    15   25   17   18   24   15   27   17   14   17    15
  18  |    8   24    6   17   15    4   18   10    9   27    4 |    18   33   24   22   33   20   34   22   22   23    21
  19  |    7   23    7   15   19    4   15    6    9   23    4 |    18   32   20   17   28   15   25   16   18   16    16
  20  |    7   22    4   12   13    4   14   12   10   16    4 |    21   34   26   24   32   22   33   21   24   23    23
  21E |    5   22    6   13   14    4   16    8    8   12    3 |    17   26   21   22   27   18   23   18   19   20    18
  22  |    7   20    6   16   14    5   17   13    9   33    4 |    13   28   18   19   28   14   28   20   20   30    17
  23  |    7   25    7   15   14    5   19    8    7   20    4 |    13   32   20   23   25   16   28   14   17   17    16
  24E |    9   21   11   11   27    6   15   22   26   27    6 |    34   38   27   35   27   30   29   26   39   29    28
  25  |    6   12    8    8   16    5   12   10    7   21    3 |    24   33   23   25   31   23   37   28   25   27    25
  26  |    6   14    8   13   10    5   14    9    5   12    3 |    20   23   20   24   22   20   22   25   22   24    20
 X27E |   15   23   33   23  ---   18   20   19  ---  ---   10 |    46   48   45   47  ---   40   51   46  ---  ---    43
  28  |    8   17    8   15   13    5   18   11    9   39    5 |    17   27   17   28   26   18   28   25   24   34    19
  29  |    8   24    6   14   13    2   18    7   10   20    4 |    26   39   31   28   40   28   38   27   29   25    29
 X30  |    9   13    6   12   13    6  ---   10    7   17    3 |    15   20   18   21   18   16  ---   21   19   22    17
  31E |    8   22    6    9   18    5   17   14   13   14    4 |    13   25   17   17   20   13   24   18   14   19    14
  32  |    8   18    6    9   16    4   11   13   11   16    4 |    14   21   18   17   21   14   23   20   15   21    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    7   13   16    5   16   11   11   21      |T   24   30   27   24   27   24   29   28   23   24    25
 WRMS |    7   19    7   12   14    5   16   10    8   20      |NE  17   27   20   22   26   18   27   21   20   21    19
 MEDI |    7   20    6   13   14    4   17   10   10   18      |MD  17   27   20   22   26   18   28   21   21   22    19

Table 3.1654.6   GPS week: 1654   Day: 6   MJD: 55828.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   35  ---   43  ---  ---   52  ---  102  ---  ---   39 |   110  ---  106  ---  ---  104  ---  103  ---  ---   106
   2E |    6   20    9    8   15    3   19    7    8   15    4 |    14   22   25   14   19   16   22   18   16   24    15
   3  |    7   11    8    9   16    6    9   15   11   15    3 |    17   20   22   26   25   17   21   27   17   22    20
   4E |   12   18   11    8   28    4   17   11   20   15    5 |    33   45   39   34   52   34   50   38   36   41    37
   5  |    7   21    7    9   17    5   18   12   11   23    4 |    23   32   29   23   34   24   30   23   22   20    22
   6  |    6   12   10    9   15    5    9   16   12   13    4 |    18   21   24   27   27   18   23   29   18   22    21
   7E |    8   19    7    9   17    3   17   13    8   11    4 |    15   27   24   22   20   17   24   20   20   19    18
   8E |   13   15   11   11   18    5   17   13   14   23    5 |    44   46   46   44   40   44   47   45   47   35    42
   9E |   13   19   11   11   16    5   20   14   15   30    5 |    60   59   61   57   63   57   64   59   58   69    58
  10  |    6   12    6    7   16    6   12    8   11   17    3 |    26   31   28   30   37   25   30   32   24   29    28
  11E |    6   14    5    9   17    4    8   11   10   15    3 |    14   24   20   17   28   15   26   15   17   16    16
  12  |    8   20   10   14   13    3   18   21   11   30    5 |    21   33   31   32   27   25   32   31   29   27    25
  13  |    5   18    8    7   22    4   13    7   13   18    4 |    16   31   22   22   37   16   29   16   15   15    18
  14  |    7   21    8   13   16    5   15   16    9   12    4 |    20   29   27   30   31   20   28   23   20   20    22
  15  |    6   29    8   11   15    5   21   10   15   21    5 |    26   33   34   30   33   29   30   28   31   24    26
  16  |    7   22   13   17   18    6   18    9   10   27    5 |    16   27   17   19   12   18   25   16   16   15    17
  17  |    6   20    9    9   15    4   14   11    9   17    4 |    16   32   21   17   27   19   30   17   17   18    17
  18  |    7   24    9   11   18    5   16   11   11   25    4 |    23   36   34   29   37   27   38   27   28   31    27
  19  |    7   20   10    7   18    4   15    6   11   20    4 |    20   32   22   19   26   19   30   17   22   18    19
  20  |    7   22    4    8   17    4   15   16    7   16    4 |    25   37   32   27   38   27   36   28   26   27    27
  21E |    4   17   12    8   15    4   14    9    8   15    3 |    19   28   31   19   31   22   27   17   23   17    21
  22  |    6   22    9   11   15    5   15   16    9   37    5 |    23   32   29   26   35   23   34   27   23   44    25
  23  |    7   21    9   10   19    4   17   11    7   22    4 |    17   31   23   24   29   17   29   17   15   18    18
  24E |   10   21   10   11   21    7   16   23   23   25    6 |    30   32   25   31   21   27   23   22   34   28    24
  25  |    5   13    8   10   15    4   15   11    9   22    4 |    30   39   37   38   39   32   45   37   32   31    33
  26  |    6   15    9    9   12    5   15   10   10   10    3 |    19   20   27   23   25   20   20   26   22   20    21
 X27E |   20   18   19   16  ---   13   19   28  ---  ---    9 |    39   38   47   43  ---   41   46   49  ---  ---    40
  28  |    9   21    7   14   14    5   18   14   10   39    5 |    25   35   33   39   34   31   35   38   34   37    31
  29  |    7   23   11   12   14    4   20    9   11   24    4 |    30   42   37   30   44   32   46   31   33   28    32
 X30  |    7   16    8   10   12    5  ---   13    7   17    4 |    21   26   29   27   25   23  ---   24   24   27    24
  31E |    7   24    8    9   11    4   16   20   12   11    4 |    16   27   21   18   23   18   23   21   19   19    16
  32  |    9   19    7    7   15    4   11   16    8   17    4 |    18   24   24   24   30   19   27   25   20   24    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    9   10   17    5   16   13   12   21      |T   26   31   32   27   31   27   32   29   25   26    27
 WRMS |    7   20    9   10   16    5   16   11    9   19      |NE  21   30   27   26   31   22   30   25   23   24    23
 MEDI |    7   20    9    9   16    5   16   12   10   17      |MD  21   32   28   27   30   23   30   26   22   24    22



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 4.1654   GPS week: 1654   MJD: 55822.0-55828.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3054 |U   12     9    26 |U    6     9    26 |U   12    13    29 |
emr | emr 2914 |U   13    10    31 |U   10    11    38 |    13    16    34 |
esa | esa 3058 |    12     9    26 |U    6     9    24 |    12    14    28 |
gfz | gfz 2926 |U   14    11    30 |U   16    16    48 |U   13    17    35 |
grg | grg 2852 |    12     9    25 |U    6    10    26 |    12    15    33 |
igr | igr 3031 |    12     9    25 |     6     9    25 |    11    12    28 |
igs | igs 3024 |    12     9    26 |     8    12    30 |    12    14    30 |
jpl | jpl 2844 |U   17    15    34 |U   13    14    56 |U   14    17    40 |
mit | mit 3058 |U   13    10    28 |U   13    14    48 |U   14    15    29 |



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 5.1654.0   GPS week: 1654   Day: 0   MJD: 55822.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    13    11    23 |     6     6    23 |    21    33    63 |
emr | emr 2955 |    13    10    38 |     7     9    38 |    14    29    64 |
esa | esa 3072 |    12    11    24 |     6     6    21 |    21    32    52 |
gfz | gfz 2956 |    12    12    29 |    11     9    29 |    17    29    65 |
grg | grg 2880 |    12    11    24 |     5     7    22 |    24    30    65 |
igr | igr 3065 |    11     9    24 |     6     8    23 |    20    30    65 |
igs | igs 3027 |    11     9    21 |     7     8    30 |    19    31    64 |
jpl | jpl 2857 |    17     9    33 |    16    17    76 |    24    39   109 |
mit | mit 3072 |    12     9    31 |    17    13    57 |    22    36    62 |

Table 5.1654.1   GPS week: 1654   Day: 1   MJD: 55823.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3062 |    11     9    26 |     6    13    29 |     7     9    19 |
emr | emr 2956 |    12     8    30 |    10    11    37 |    11    12    30 |
esa | esa 3072 |    10     9    24 |     5    11    24 |     9    14    24 |
gfz | gfz 2956 |    12    13    31 |    17    16    61 |    10    12    24 |
grg | grg 2880 |    10     7    23 |     6    12    31 |    10    13    26 |
igr | igr 3048 |    10     7    23 |     6    10    24 |     9    11    23 |
igs | igs 3040 |    10     8    24 |     6    11    26 |     9    12    22 |
jpl | jpl 2857 |    23    29    42 |    10    14    70 |    13    19    33 |
mit | mit 3072 |    11     8    28 |    13    15    53 |    12    18    25 |

Table 5.1654.2   GPS week: 1654   Day: 2   MJD: 55824.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |    14    10    27 |     5    10    24 |    10     9    22 |
emr | emr 2860 |    16    13    28 |    12    12    34 |    13    15    22 |
esa | esa 2976 |    16    12    30 |     5    10    20 |     9     8    17 |
gfz | gfz 2860 |    17    12    30 |    13    17    44 |    10    10    21 |
grg | grg 2784 |    16    12    25 |     5    10    23 |    10     9    19 |
igr | igr 2958 |    15    12    30 |     5    10    23 |    10     7    14 |
igs | igs 2927 |    15    10    30 |     7    15    26 |    10     9    20 |
jpl | jpl 2764 |    20    15    35 |    14    15    38 |    11     9    21 |
mit | mit 2976 |    15    13    26 |    14    15    37 |    12     9    24 |

Table 5.1654.3   GPS week: 1654   Day: 3   MJD: 55825.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    11     7    22 |     7     9    32 |  ----  ----  ---- |
emr | emr 2768 |    14     7    30 |    11    12    47 |    13    20    30 |
esa | esa 3072 |    13     8    24 |     7     9    27 |    10    12    29 |
gfz | gfz 2855 |    14     8    29 |    18    18    59 |  ----  ----  ---- |
grg | grg 2782 |    13     8    22 |     6     9    26 |     9    16    34 |
igr | igr 3040 |    12     8    23 |     7     9    27 |    10    11    28 |
igs | igs 3057 |    12     7    24 |    10    13    39 |     9    11    29 |
jpl | jpl 2859 |    16    10    35 |    14    15    62 |    12    17    27 |
mit | mit 3072 |    13     6    21 |    13    15    60 |    12     6    13 |

Table 5.1654.4   GPS week: 1654   Day: 4   MJD: 55826.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    13    10    34 |  ----  ----  ---- |    10     6    22 |
emr | emr 2953 |    14     8    39 |  ----  ----  ---- |    11     9    29 |
esa | esa 3072 |    13     8    31 |  ----  ----  ---- |    11     8    22 |
gfz | gfz 2956 |    15    15    33 |  ----  ----  ---- |    15    21    36 |
grg | grg 2880 |    13     9    32 |  ----  ----  ---- |    11     8    27 |
igr | igr 3052 |    13     8    34 |  ----  ----  ---- |     9     5    21 |
igs | igs 3049 |    13     8    34 |  ----  ----  ---- |    12    11    22 |
jpl | jpl 2856 |    17    15    40 |  ----  ----  ---- |    10     8    26 |
mit | mit 3072 |    17     9    39 |  ----  ----  ---- |    12     9    25 |

Table 5.1654.5   GPS week: 1654   Day: 5   MJD: 55827.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3067 |    10     7    25 |  ----  ----  ---- |    13    13    27 |
emr | emr 2956 |    10    12    28 |  ----  ----  ---- |    15    17    34 |
esa | esa 3072 |     9     8    27 |  ----  ----  ---- |    14    16    29 |
gfz | gfz 2954 |    15    11    36 |  ----  ----  ---- |    17    18    37 |
grg | grg 2880 |    10    10    30 |  ----  ----  ---- |    15    15    35 |
igr | igr 3052 |    13     9    26 |  ----  ----  ---- |    15    14    26 |
igs | igs 3052 |    10    12    31 |  ----  ----  ---- |    14    14    28 |
jpl | jpl 2860 |    14    13    25 |  ----  ----  ---- |    16    16    34 |
mit | mit 3072 |    11    10    24 |  ----  ----  ---- |    17    18    35 |

Table 5.1654.6   GPS week: 1654   Day: 6   MJD: 55828.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3064 |    12    12    27 |     6     8    24 |     8     6    20 |
emr | emr 2956 |    15    12    26 |     9     9    33 |    11    10    31 |
esa | esa 3072 |    12    11    20 |     8    10    30 |     7    10    22 |
gfz | gfz 2947 |    13     9    22 |    20    18    49 |    11    13    26 |
grg | grg 2880 |    13     9    22 |     8    10    28 |     9    11    27 |
igr | igr 3005 |    12    10    19 |     6     8    28 |     9     8    21 |
igs | igs 3018 |    12    11    21 |     9    12    30 |     8     8    21 |
jpl | jpl 2858 |    15    10    29 |     9    10    32 |    10    10    30 |
mit | mit 3072 |    14    13    25 |     9    12    36 |     8     8    19 |


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 6.1654   GPS week: 1654   MJD: 55822.500-55828.500

                                                         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     -18     -18     -22      1 |      10     19
            |      18      26      84      54      3 |       3
emr   uuuuu |      22      -6      -5      -9      3 |      49     51
            |      34      18     111     163      5 |       4
esa   uuuuu |      21     -44      59      92      4 |      12     20
            |      17      17      76      48      6 |       3
gfz   uuuuu |     -57      25     -29     -54      2 |      11     19
            |      24      11      84      94      5 |       2
grg   uuuux |      21     -23     -57     -33     14 |      -7     28
            |      34      29     119     102     18 |       1
igr   xxxxx |     -23       5     -22     -44      1 |       4     14
            |      19      24      64      81     12 |       1
irf   xxxxx |       9      -7       8     -14     -3 |       5     16
            |      10       8      32      56      2 |       2
jpl   uuuuu |     -78      48      15    -144      3 |      64     66
            |      32      29     112      72     18 |       3
mit   uuuuu |       2      -5      32      89     -7 |      23     29
            |      18      23      72      85      3 |       2
ngs   uuuuu |       5      32      21      49     -2 |      12     16
            |      47      34      61     125      5 |       3
sio   uuuuu |     104      -5    -212    -264      9 |      59     61
            |      22      19      58     109      7 |       2


Table 7.1654.0   GPS week: 1654   Day: 0   MJD: 55822.500

                                                         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 |      33     -33      27    -109      1 |      16     22
emr   uuuuu |      69       1     109     301      0 |      57     59
esa   uuuuu |      35     -31     -54     128     -8 |      18     21
gfz   uuuuu |     -79      35     -10     -64     -2 |      16     20
grg   uuuux |     -22     -70     163    -118     35 |      -6     29
igr   xxxxx |     -23      -1     -40     -33     18 |       4     12
irf   xxxxx |       1     -19     -34    -122     -4 |      10     14
jpl   uuuuu |     -37      34      12     -16     20 |      60     62
mit   uuuuu |      -1     -38     -72     -86     -5 |      28     30
ngs   uuuuu |      16      66     108      98      8 |      17     19
sio   uuuuu |      77     -17    -258    -498     13 |      59     60

Table 7.1654.1   GPS week: 1654   Day: 1   MJD: 55823.500

                                                         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      31     140      15      5 |      12     21
emr   uuuuu |      42      11     -92     123     -3 |      52     55
esa   uuuuu |      24     -28      24      99      5 |      12     22
gfz   uuuuu |     -64      20      45    -214     -4 |      12     21
grg   uuuux |       4      -8     -61    -159      0 |      -7     29
igr   xxxxx |      -7     -13      30    -204     11 |       2     13
irf   xxxxx |      22      -9      54      -7      0 |       5     17
jpl   uuuuu |     -67      73    -130    -203     22 |      60     62
mit   uuuuu |      30     -31      84     112     -1 |      24     30
ngs   uuuuu |     -60      12      89     163     -3 |      13     17
sio   uuuuu |     132      -8    -181    -173     16 |      56     57

Table 7.1654.2   GPS week: 1654   Day: 2   MJD: 55824.500

                                                         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 |       5     -49    -119      -8      1 |      11     21
emr   uuuuu |      21       4     -92    -131     -1 |      50     52
esa   uuuuu |      40     -72     159      66      0 |      11     20
gfz   uuuuu |     -46      27      51     -85      0 |      11     20
grg   uuuux |      32     -22     -89      49      7 |      -7     29
igr   xxxxx |      12     -13      78     -66      9 |       3     15
irf   xxxxx |      10      -2     -21      33     -3 |       5     17
jpl   uuuuu |    -123      69      26    -243     18 |      62     65
mit   uuuuu |       6       4     -59     143     -9 |      24     30
ngs   uuuuu |     -13      28      12      93      1 |      12     16
sio   uuuuu |      94      26    -318    -198     15 |      57     59

Table 7.1654.3   GPS week: 1654   Day: 3   MJD: 55825.500

                                                         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 |      26     -14       1     -47     -2 |       9     18
emr   uuuuu |     -37     -25      88    -138      6 |      47     49
esa   uuuuu |      10     -35      68     169      6 |      10     19
gfz   uuuuu |     -19      37      -2      94     -1 |       9     18
grg   uuuux |       7     -37     -16      21     25 |      -8     28
igr   xxxxx |     -39     -10      13     -20      1 |       3     15
irf   xxxxx |       7       3      13      32     -2 |       4     16
jpl   uuuuu |    -109      80      30    -126      7 |      64     67
mit   uuuuu |      -5      25      28     108    -11 |      23     29
ngs   uuuuu |      55     -34     -65    -189     -2 |      11     15
sio   uuuuu |      93       4    -218    -220     11 |      58     61

Table 7.1654.4   GPS week: 1654   Day: 4   MJD: 55826.500

                                                         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 |     -23     -26     -36      52     -1 |       9     18
emr   uuuuu |       1     -37      29    -102      7 |      47     49
esa   uuuuu |      35     -60     125      18      9 |      11     19
gfz   uuuuu |     -37      34    -104       2      4 |       9     18
grg   uuuux |       5     -38    -100    -132      9 |      -8     28
igr   xxxxx |     -42      -2     -52      27     -6 |       5     13
irf   xxxxx |      21      -3      18       4     -1 |       3     17
jpl   uuuuu |     -88      46    -122    -123    -17 |      66     68
mit   uuuuu |      16      12      41     143     -6 |      22     29
ngs   uuuuu |     -42      49      30     104     -7 |      10     15
sio   uuuuu |     126       7    -159    -258      8 |      60     62

Table 7.1654.5   GPS week: 1654   Day: 5   MJD: 55827.500

                                                         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      -2     -75     -63     -4 |       7     17
emr   uuuuu |      45       5      91     -79      5 |      45     47
esa   uuuuu |      12     -52      -7      66      7 |      10     18
gfz   uuuuu |     -74      20    -181     -73      5 |       9     18
grg   uuuux |      34      -6     -60       5    -10 |      -7     28
igr   xxxxx |     -34      50    -100      39    -17 |       5     14
irf   xxxxx |      -4      -3     -12     -54     -3 |       2     16
jpl   uuuuu |     -43      35     172    -135     -9 |      67     68
mit   uuuuu |     -23       2      89      49    -10 |      21     28
ngs   uuuuu |      12      59       1     129     -5 |       9     14
sio   uuuuu |      84     -15    -169    -284      0 |      61     63

Table 7.1654.6   GPS week: 1654   Day: 6   MJD: 55828.500

                                                         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     -32     -62       8      3 |       9     18
emr   uuuuu |      15       3    -170     -40      9 |      48     49
esa   uuuuu |      -8     -29      99      95      8 |      12     20
gfz   uuuuu |     -81       5       1     -38     11 |      11     19
grg   uuuux |      84      22    -235     101     35 |      -6     28
igr   xxxxx |     -30      25     -81     -53     -9 |       4     14
irf   xxxxx |       6     -13      37      12     -4 |       3     16
jpl   uuuuu |     -80      -2     116    -166    -20 |      67     69
mit   uuuuu |     -12      -8     111     155     -9 |      21     28
ngs   uuuuu |      66      44     -24     -53     -8 |      10     15
sio   uuuuu |     121     -34    -181    -217     -2 |      63     65



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