[IGSREPORT-24928] Wk 1924 IGS Final Orbits

acc at igs.org acc at igs.org
Fri Dec 9 09:49:08 PST 2016


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1924   (Nov 20, 2016 - Nov 26, 2016)

Contacts: acc at igs.org


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 at each SP3 epoch. 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 with broadcast GPS time, the IGS clocks use
the linear combination of phase-smoothed P1 and P2 pseudorange data to remove
the 1st order ionospheric delay, with no other delay calibrations 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 over each daily arc. 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 10 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:

igs1924[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1924[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1924[0-6].cls  IGS GPS clock combination summary report.
igs19247.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs19247.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, GRG, MIT, and
    JPL. The other centres are excluded because of poorer consistency, they provide
    broadcast clocks, or clock corrections are not provided (SIO). The clock
    information not used is still compared to the combination for completeness. The
    value of 999999.999999 microseconds, according to the SP3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks
    contributed from that AC should not be included with weight in this
    combination. This is done to ensure a high level of consistency between the TRF
    and the orbital frame. However, there is an exception for the clocks if the AC
    is the reference center. In that case, only the clocks from that AC are
    included with weight.
    
    Starting week 1707:
      cod = cof${wwww}[0-6].[clk,snx,sp3] & cod = cof${wwww}7.[erp,sum]

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new orbit solution from CNES/GRGS (GRG) is included with
    weight. GRG clocks are included with weight starting 12-Aug-2012 (GPS Week
    1701, day 0, MJD 56151), after a procedural change to generate estimates in
    the center-of-figure frame instead of the center-of-mass frame. GRG LOD
    estimates are included for comparison only.

 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   | 4
                0  |  COD   | MAL2 NRMD CEDU MAL2 NRMD
                0  |  EMR   | BJNM HERS
                0  |  ESA   | RBAY RBAY
                0  |  GFZ   | FAA1 GMSD GODE FAA1 GMSD GODE
                0  |  GRG   | 13 13 GLSV MAL2 RABT SYOG GLSV MAL2 RABT SYOG
                0  |  JPL   | TUVA
                1  |  ALL   | 4
                1  |  COD   | BJFS FAA1 HYDE INVK KARR MAW1 NANO NIST SSIA SYOG
                1  |  COD   | BJFS FAA1 HYDE INVK KARR MAW1 NANO NIST SSIA SYOG
                1  |  ESA   | BJNM BJNM
                1  |  GFZ   | BJNM FAA1 HERS HOB2 REUN BJNM CEDU FAA1 HERS HOB2
                1  |  GFZ   | REUN
                1  |  GRG   | 11 24 11 24 GLSV SYOG GLSV SYOG
                1  |  JPL   | TUVA
                1  |  MIT   | SYOG SYOG
                2  |  ALL   | 4
                2  |  ESA   | NRIL SYOG NRIL SYOG TIXI
                2  |  GFZ   | 13 13 BJNM CHTI CRO1 GMSD GODE CHTI CRO1 GMSD GODE
                2  |  GFZ   | NKLG
                2  |  GRG   | 13 13 CHTI MCM4 NKLG NRIL NRMD SYOG CHTI DGAR GLSV
                2  |  GRG   | NRIL NRMD SYOG
                2  |  JPL   | TUVA
                3  |  ALL   | 4
                3  |  COD   | LAMA LAMA URUM
                3  |  GFZ   | BJNM FAA1 GMSD GODE BJNM FAA1 GMSD GODE
                3  |  GRG   | GLSV MAW1 NKLG NRMD SYOG TLSE GLSV MAW1 NRMD SYOG
                3  |  JPL   | TUVA
                4  |  ALL   | 4
                4  |  COD   | SYOG SYOG
                4  |  EMR   | STJO WHIT
                4  |  ESA   | FAA1 NRIL WHIT FAA1 NRIL WHIT
                4  |  GFZ   | FAA1 GMSD GODE GUAT FAA1 GMSD GODE GUAT
                4  |  GRG   | MAL2 MAW1 NKLG MAL2 MAW1
                4  |  JPL   | DGAV MAC1
                4  |  MIT   | REUN
                5  |  ALL   | 4
                5  |  COD   | MAW1 MAW1 TRO1
                5  |  ESA   | TRO1
                5  |  GFZ   | GODE GODE
                5  |  GRG   | GLSV KARR LPGS MAL2 MAW1 MCM4 PIMO SYOG TLSE GLSV
                5  |  GRG   | LPGS MAL2 MAW1 MCM4 PIMO SYOG TLSE
                5  |  JPL   | PIMO TUVA
                6  |  ALL   | 4
                6  |  COD   | BJNM MAL2 NRMD MAL2 MDVJ NRMD SYOG
                6  |  EMR   | 8 27 8 27 HERS
                6  |  ESA   | TRO1 BJNM RBAY
                6  |  GFZ   | BJNM MAL2 TRO1 BJNM MAL2
                6  |  GRG   | GLSV SYOG TLSE GLSV SYOG

 5. 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 AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 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
               ----+--------+---------------
                1  |  GRG   |  24
                6  |  COD   |   4   8
                6  |  GRG   |   8

 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 G08 |    |    |    |    |    |  4 |  4 |
           PRN G24 |  4 |  4 |  4 |  4 |    |  4 |  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.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. 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 | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.4    -.7   -2.1     -23      4      9     .68
       EMR  |   0 |    2.9    7.2   11.6      75    -18     23     .78
       ESA  |   0 |    -.5    -.2    -.6       8    -36      9     .30
       GFZ  |   0 |    1.2    -.7    -.8     -48   -122    -28     .62
       GRG  |   0 |    5.0    3.0   30.7      13    -23     19     .46
       JPL  |   0 |    3.9    2.3    4.1     -49    -21    -16     .71
       MIT  |   0 |    4.0    1.8    1.5      48      2    -70     .74
       NGS  |   0 |     .1    2.4    6.9       0    -34    -13     .74
       SIO  |   0 |     .4    2.9   -3.9      -5     -3    -13     .51

       COD  |   1 |    -.5   -1.3   -1.2     -39    -20     31     .69
       EMR  |   1 |    4.6   11.9   11.2      79    -35      9     .47
       ESA  |   1 |    -.3     .1   -1.2       9    -30      7     .29
       GFZ  |   1 |    1.5     .1   -1.2     -25   -113    -69     .83
       GRG  |   1 |    4.7    7.7   20.1       9    -14     48     .12
       JPL  |   1 |    7.6     .7    9.6     -13     18    -12     .61
       MIT  |   1 |    3.7    1.4    2.9      19     -6    -58     .81
       NGS  |   1 |   -1.0    4.4   -2.0      57    -14     12     .61
       SIO  |   1 |    -.5   -2.6  -11.9       4    -16      4     .45

       COD  |   2 |    -.8   -1.4   -2.2       3     10     58     .88
       EMR  |   2 |    3.2    8.6   14.0      89    -57      3     .59
       ESA  |   2 |    -.4    -.1    -.8      16    -39     14     .14
       GFZ  |   2 |    1.1    -.4     .0     -42   -131    -21     .77
       GRG  |   2 |   10.7    3.0    9.9      21    -46      9     .40
       JPL  |   2 |    5.2     .8    4.7     -51     17      3     .48
       MIT  |   2 |    4.2    4.8    2.0      46      1    -16     .69
       NGS  |   2 |    5.4   -1.4    1.7      13    -45     26     .72
       SIO  |   2 |    4.3    2.4  -14.7      15    -13     22     .55

       COD  |   3 |   -1.1   -1.5   -3.0     -19     23      2     .76
       EMR  |   3 |    4.0    7.8   11.6      75    -19     22     .63
       ESA  |   3 |    -.9   -1.0    -.8     -22    -15     36     .33
       GFZ  |   3 |    1.0     .0   -1.1     -25   -117     -2     .74
       GRG  |   3 |    8.6    4.8   17.2      31    -53     35     .17
       JPL  |   3 |    1.3    2.3    3.0     -21     59    -14     .65
       MIT  |   3 |    6.6    5.9    1.7      37    -21    -24     .85
       NGS  |   3 |    2.2   -1.1    -.5      14    -39     -1     .83
       SIO  |   3 |    4.5    5.7  -18.0      30      0    -20     .53

       COD  |   4 |    -.7    -.6   -1.9      -6     16     19     .59
       EMR  |   4 |    5.8    1.2   14.1      61    -42    -11     .67
       ESA  |   4 |    -.5    -.5    -.8     -21     -3     42     .19
       GFZ  |   4 |     .6     .2    -.9     -34   -133      9     .64
       GRG  |   4 |    7.9    3.6   21.3      -8    -28     15     .01
       JPL  |   4 |    2.2    3.5    6.9     -67     64      2     .55
       MIT  |   4 |    7.7    3.5    6.0      19    -27    -65     .62
       NGS  |   4 |    3.6     .6    1.9      16    -43      4     .72
       SIO  |   4 |    7.4    -.8  -14.9       3     -1    -10     .34

       COD  |   5 |    -.7   -1.2   -2.3       8     10    -11     .89
       EMR  |   5 |    3.6    2.1   21.6      53    -32    -22     .59
       ESA  |   5 |    -.2    -.1    -.6      -6    -29     26     .07
       GFZ  |   5 |    2.3    -.3    -.7     -29   -140    -24     .74
       GRG  |   5 |    7.6    2.6   32.1      -7    -46     69     .30
       JPL  |   5 |    4.3    7.6    5.4     -22     35     29     .55
       MIT  |   5 |    5.2    3.4    2.2       3    -21    -67     .71
       NGS  |   5 |   -3.5    3.7    7.9     -12    -29    -18     .72
       SIO  |   5 |     .2    5.1  -15.8     -18      7    -46     .53

       COD  |   6 |    -.2     .1   -1.1     -11      3     19     .66
       EMR  |   6 |     .2   35.8   16.5      66    -46     -7     .63
       ESA  |   6 |    -.7    -.1    -.8      11    -40      6    -.04
       GFZ  |   6 |     .5    1.0   -1.1     -28   -109    -45     .63
       GRG  |   6 |    5.2    1.1   35.0       3    -41     22     .16
       JPL  |   6 |    -.1    4.8    3.4     -36     19     -8     .16
       MIT  |   6 |    2.5    4.0   -1.4      21    -15    -68     .60
       NGS  |   6 |   -2.6    5.1    2.3      23    -18    -47     .73
       SIO  |   6 |    1.8   11.5  -12.9      10    -21    -19     .58


10. As inidicated in the previous remarks, the IGS final orbits are aligned to the
    IGS reference frame by pre-aligning each AC orbit with the 3 corresponding
    SINEX rotations. This approach began 27-Feb-2000 (GPS Week 1051-0; MJD 51601).
    Starting sometime prior to 19-Aug-2012 (GPS Week 1702; MJD=56158), the orbit
    combination procedures used an incorrect sign convention to apply the SINEX
    RX and RY values to the AC orbits.
    
    Also starting 27-Feb-2000 (GPS  Week 1051-0; MJD 51601), the AC orbits were
    pre-aligned using rotations derived from differences between AC and IGS
    combined x and y polar motion. These ERP rotations were intended to
    approximate day-to-day variations of the AC orbital frames when only weekly
    averaged AC TRF rotations were available (For more details, see IGSMAIL
    #2750). With the change to daily SINEX integrations starting 19-Aug-2012, the
    ERP rotations are no longer needed/applied.

11. 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; from GPS Week 1632 through 1648 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 seven 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 1.1924.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1924.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 2.1924.[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 3.1924.[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 part, 
Table 5, is similar to Table 4 and contains daily precise navigation
statistics (Tables 5.1924.0-6). The sixth part, Table 6, is a weekly
summary of daily ERP combination statistics. The seventh part, Table 7,
contains the daily ERP statistics. But this is not the IGS official ERP
combination products (which come from the accompanying SINEX combination)
but provided to check combination consistency, etc.

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 1924 summary.                       (Nov 20, 2016 - Nov 26, 2016)

Table 1.1924.a   GPS week: 1924   MJD: 57712.000-57718.000

         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  238|    0     0     1    -6    -7     2   .15    9    9 |    -988    -245     14    130
        |    0     1     1    17    16    19   .03           |     259     395
emr   80|    0     3     2    -6    -3   -14   .30   10   10 |    2134      42     13    108
        |    0     8     0     7    21    17   .07           |     651     930
esa  150|    0     0     0     5     4    32  -.46    7    7 |   -1134      12      7    114
        |    0     0     0    16    18    10   .02           |     713    1107
gfz  197|    0    -1    -8    -7   -22     6   .24   11   10 |    -224     -60     10     91
        |    0     1     0    11    15    14   .01           |     245     636
grg  118|    1    -1    14     9    21    14  -.29   14   11 |     -31     115     17    171
        |    0     1     6    15    18    22   .02           |     112     373
igr  n/a|    0     0    -2    -3    14     0   .03    5    4 |   -1421     764     15     76
        |    0     1     1     7    16    13   .03           |    1524    1042
jpl   80|    0     0     3    -6    27   -44   .29    9    9 |    1824      55     14    101
        |    0     1     1    20    28    26   .03           |     649     931
mit  346|    0     0    -7    -7   -24    -3  -.00   13   12 |     -25    -134     53    348
        |    0     1     1    33    37    35   .03           |     333     326
sio  285|    0     0    -6    17    -9     2  -.04   15   14 |     ---     ---    ---    ---
        |    0     0     1    27    34    29   .05           |     ---     ---


Table 1.1924.b   GPS week : 1924   MJD: 57712.000-57718.000   

         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  |    3    3    3    3    3    4    4 |
   2  |    4    5    4    5    5    5    5 |
   3  |    3    3    3    3    3    4    4 |
   4  |   18   19   18   15   12   17    0 |
   5  |    4    4    4    4    4    4    4 |
   6  |    3    3    3    3    3    3    3 |
   7  |    4    4    4    4    4    5    4 |
   8  |    3    4    4    4    4    5   16 |
   9  |    3    4    3    4    3    4    4 |
  10  |    3    3    3    3    3    4    4 |
  11  |    4    4    4    4    5    5    5 |
  12  |    5    5    4    4    5    5    5 |
  13  |    4    4    4    5    4    4    4 |
  14  |    4    4    4    4    4    4    4 |
  15  |    4    4    4    5    5    5    5 |
  16  |    4    5    5    5    5    5    4 |
  17  |    4    4    4    4    4    4    5 |
  18  |    5    5    5    5    4    5    5 |
  19  |    4    4    4    4    4    4    6 |
  20  |    3    3    3    4    4    4    4 |
  21  |    5    5    5    5    5    5    5 |
  22  |    4    4    4    4    3    4    4 |
  23  |    4    4    5    4    4    5    5 |
  24  |    3   10    3    4    4    4    5 |
  25  |    4    4    3    4    3    4    4 |
  26  |    3    3    3    4    3    4    4 |
  27  |    3    4    4    4    4    4   10 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    6    5    5    5    5    6 |
  30  |    3    3    3    3    3    4    4 |
  31  |    3    4    3    3    3    4    3 |
  32  |    4    3    3    3    3    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
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1924.0   GPS week: 1924   Day: 0   MJD: 57712.000                            

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  237|    0     0     0    10   -26   -14   .15    8    8 |    -898    -613     14    128
emr   80|   -1     0     1    -3    36    14   .26    9    9 |    3003   -1105     15    115
esa  150|    0     0     0     3   -12    35  -.47    7    7 |    -575     943      7    117
gfz  199|    0     1    -9     1   -20    -1   .23   12   10 |      -1      60     10     94
grg  121|    2    -1    17    14    35    22  -.27   12   11 |      92     141     16    174
igr  n/a|    0     0     0     6     2     7   .04    4    4 |   -2063    -717     13     87
jpl   80|    0     0     3   -11    -4   -56   .33    8    8 |    2875   -1021     13    100
mit  347|    0    -1    -7   -18   -15     9   .01   14   12 |     154    -114     52    337
sio  291|    0     0    -6   -11    22   -32  -.11   14   14 |     ---     ---    ---    ---

Table 2.1924.1   GPS week: 1924   Day: 1   MJD: 57713.000                            

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    -1   -29     4   .11    9    9 |   -1345    -133     17    134
emr   80|    0     2     2    -1    13   -27   .25   11   10 |    1601    -257     12     94
esa  150|    0     0     0    21    -5    40  -.47    8    7 |   -2138    -614      8    130
gfz  198|    0     0    -7   -13     0    -7   .23   12   11 |     -14    -649     11     90
grg  114|    0    -2     7   -10    28    48  -.31   23   12 |      -8    -176     18    187
igr  n/a|    0    -1    -1     0   -10    -4   .00    5    4 |   -3108     489     15     79
jpl   80|    0     0     4   -16   -10   -69   .31    9    9 |    1471    -144     13     99
mit  347|    0    -1    -7    -6    14    20  -.02   14   13 |     327    -283     53    364
sio  283|   -2     0    -5     2    -2    25  -.01   14   14 |     ---     ---    ---    ---

Table 2.1924.2   GPS week: 1924   Day: 2   MJD: 57714.000                            

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  239|    0     0     3   -17     6    17   .17    8    8 |    -708    -624     15    133
emr   80|   -2     1     2   -22   -16   -20   .30    9    9 |    1473    1382     13    102
esa  150|    0     0     0    23     1    31  -.46    7    7 |    -704    1734      8    116
gfz  197|    0    -1    -8   -19   -23     2   .26   11   10 |    -686    1261      9     90
grg  116|    0    -1     7     3    36   -11  -.31   11   11 |    -212     861     17    179
igr  n/a|    0     0    -1    -8    12   -27  -.01    4    4 |   -2659    2047     14     83
jpl   80|    1     1     2     6    48   -80   .29    8    8 |    1294    1472     14    107
mit  346|    0     0    -7    -2   -25    51  -.02   13   12 |     301     547     50    381
sio  291|    0    -1    -2     5   -51    38  -.08   14   13 |     ---     ---    ---    ---

Table 2.1924.3   GPS week: 1924   Day: 3   MJD: 57715.000                            

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  239|    0     1     1   -35    -8   -19   .17    9    9 |   -1161    -166     13    132
emr   80|    0     1     2    -7    -5    -7   .29    9    9 |    1899     222     12    115
esa  150|    0     0     0   -17    10    36  -.43    7    6 |   -1883    -927      7    118
gfz  198|   -1     0    -8   -12   -44    20   .25   11   10 |    -194    -413     10    107
grg  119|    2    -1    13    38   -12    10  -.27   13   11 |       1    -116     18    174
igr  n/a|    0     0    -2   -13     8     1   .05    5    5 |   -1635     434     16     73
jpl   80|    1    -1     4    21    55   -48   .30    9    9 |    1754    -161     14    108
mit  346|    0     0    -7     4   -21    11  -.02   13   12 |    -363    -382     49    288
sio  283|    0    -1    -5    28    -7   -27  -.07   14   14 |     ---     ---    ---    ---

Table 2.1924.4   GPS week: 1924   Day: 4   MJD: 57716.000                            

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  238|    0     0     1    -8   -12    -8   .12    9    9 |   -1208     303     14    132
emr   80|    0     0     3    -1   -22   -38   .27    9    9 |    2147    -544     13    107
esa  150|    0     0     0   -12    42    47  -.47    6    6 |   -1604    -998      6     96
gfz  195|   -1     0    -7    14   -23    30   .22   10   10 |    -286    -330     10     88
grg  118|    0     0    14    -1     6    -5  -.27   13   11 |      91    -242     17    164
igr  n/a|    0     0    -3     0    23    -1   .01    4    4 |   -1103      96     15     61
jpl   80|    0     0     2   -33    58   -25   .26    9    9 |    1711    -672     16    102
mit  347|    0     0    -6    10   -58   -43  -.04   12   11 |      32    -380     55    317
sio  287|    1    -1    -7    59   -60    30   .05   16   16 |     ---     ---    ---    ---

Table 2.1924.5   GPS week: 1924   Day: 5   MJD: 57717.000                            

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  237|    0     0     1    17     9     1   .12   11   11 |    -658    -656     15    123
emr   80|    0    -2     4    -2   -17   -17   .28   10   10 |    1750    1160     14    117
esa  150|    0     1     0    19    -9    19  -.47    7    7 |    -448    -810      8    125
gfz  197|   -1    -1    -8    -7   -36    12   .26   11   10 |    -351      45     11     79
grg  121|    0     0    15    11    21    35  -.30   13   11 |    -138      99     17    163
igr  n/a|    0     0    -3     4    33    10   .07    5    5 |    -920    2195     17     79
jpl   80|    1    -1     4    12    13   -11   .25   10   10 |    1126    1197     14     88
mit  346|    1     1    -7   -73    19   -40   .04   13   12 |    -560     -47     50    386
sio  283|    0     0    -8    -9    27     3  -.01   14   13 |     ---     ---    ---    ---

Table 2.1924.6   GPS week: 1924   Day: 6   MJD: 57718.000                            

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  237|    0    -2    -1    -9     7    35   .19   10   10 |    -943     170     14    132
emr   80|    0    21     2    -8   -11    -6   .46   16   16 |    3065    -561     15    110
esa  150|    0     1     0     2     4    16  -.45    6    6 |    -587     757      7     99
gfz  197|    0    -4    -7   -16    -6    -7   .25   12   11 |     -40    -396     12     92
grg  121|    0    -3    26     6    37     1  -.29   15   13 |     -44     240     17    160
igr  n/a|    0    -2    -3   -10    31    12   .06    5    5 |    1537     806     17     70
jpl   80|    0    -2     0   -22    30   -18   .28    8    8 |    2541    -286     14    106
mit  346|    1    -2   -10    36   -83   -30   .02   13   12 |     -66    -282     64    364
sio  283|    0     0    -6    44     3   -19  -.07   16   14 |     ---     ---    ---    ---

       
       
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 3.1924.0   GPS week: 1924   Day: 0   MJD: 57712.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7   10    6    7    8    3    8   12    8    3 |    25   26   18   24   18   22   29   21   25    21
   2  |   11    8    8   14   10    4    6   15   19    4 |    36   40   36   45   32   37   37   39   45    37
   3  |    6    9    5    8    9    3    9    6    7    3 |    37   42   32   37   32   36   44   35   39    35
  X4E |   17  ---  ---  ---  ---   28   17  ---  ---   17 |   100  ---  ---  ---  ---  109   98  ---  ---    98
   5  |    6    6    8   15   11    4    8   16   17    4 |    42   45   42   42   43   42   46   39   40    41
   6  |    7    8    6    7    7    2    9   10   14    3 |    22   25   20   23   17   22   26   25   24    21
   7  |    6   11    8   13   13    4    8   12   13    4 |    24   28   20   24   19   20   24   19   17    20
   8E |    7   12    6    8   13    2    7   11    6    3 |   113  114  110  114  113  112   27  107  109   111
   9  |    6   10    6    7   14    3    9    8    7    3 |    19   20   14   21   20   18   24   22   19    17
  10  |    7    7    4    7    8    3    7   10   12    2 |    37   43   37   41   34   38   40   45   42    38
  11  |   10    9   14   13   10    3    8   11   13    4 |    37   38   32   42   32   37   42   36   34    34
  12  |   10    8    6   14   14    5    7   18   20    4 |    28   28   22   27   26   25   29   28   23    24
  13E |    8    7    6   11   20    4    8   15   15    4 |    30   30   29   31   34   29   31   32   30    29
  14E |   10   10    6   10   21    6    9   14   14    4 |    43   47   41   46   43   43   44   44   46    42
  15  |    7   10    5   12   18    4    9   15   16    4 |    27   31   21   27   31   24   30   25   17    24
  16  |   10   10    6   14    8    4    8   14   16    4 |    30   24   21   27   23   24   25   22   23    22
  17E |    8   12    5   10   13    4   10   15   14    4 |    26   29   18   27   25   24   29   23   27    23
  18  |    8   11    5   24    7    3    7   14   18    4 |    26   32   28   46   27   29   28   31   28    28
  19E |   15    6    6   13   13    4    6   15   14    4 |    24   23   17   23   25   20   26   20   19    19
  20  |    5    7    7   10    9    4    7   12   15    3 |    32   34   32   36   31   33   32   37   36    32
  21  |    8    7    8   16   11    4    7   19   19    4 |    31   32   34   40   30   32   33   41   37    32
  22  |    5    8    9   11   10    5    6   20   10    3 |    32   34   32   34   26   34   36   33   29    30
  23  |    6   10    6   14   20    4   10   13   14    4 |    26   26   19   25   32   23   30   23   18    22
  24  |    8   10    4    7    9    4    9   13   11    3 |   200  198  197  196  197  198  199  202  198   198
  25  |    9    7    5    7    7    5    9   16   14    3 |    22   26   17   22   21   21   27   25   29    22
  26  |    8    9    5    6    8    4    8    7   13    3 |    25   22   19   23   20   22   25   22   27    21
  27E |    7   10    6    7   15    3    8    9    8    3 |    25   21   15   25   19   21   26   23   19    19
  28  |    7   10    7   11    9    3    8   14   15    3 |    27   27   19   24   23   23   28   24   15    22
  29E |   15    9    7   15   15    3   11   23   19    5 |    39   31   29   38   35   33   33   36   33    31
  30  |    5    7    7    9   10    3   10    9    7    3 |    28   28   23   28   23   26   29   24   26    25
  31  |    8    8    5   10   10    4    8   12   11    3 |    28   29   19   22   22   24   28   25   20    23
  32  |    7   11    4    7   15    4    7   10   11    3 |    28   28   23   25   28   25   30   22   23    24
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    8    9    7   12   12    4    8   14   14      |T   39   38   33   38   35   38   38   37   36    37
 WRMS |    8    9    7   10   11    4    8   12   14      |NE  36   37   32   37   33   34   38   36   34    33
 MEDI |    7    9    6   10   10    4    8   13   14      |MD  28   29   23   27   27   25   29   25   27    24

Table 3.1924.1   GPS week: 1924   Day: 1   MJD: 57713.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    8    7    6    7    7    4    7    9    8    2 |    21   25   19   21   19   22   27   22   25    21
   2  |   14    8    9   16   13    5    7   16   20    4 |    30   30   25   30   27   27   28   28   33    27
   3  |    5    9    6    7    9    5    8    9   11    3 |    25   33   23   26   25   27   32   27   29    26
  X4E |   20  ---  ---  ---  ---   24   17  ---  ---   18 |    60  ---  ---  ---  ---   66   68  ---  ---    61
   5  |    7    9    8   12   11    4    8   14   16    4 |    27   28   26   21   23   25   29   21   22    24
   6  |    7    6    5    8    9    3    7   10   10    3 |    22   26   25   20   23   23   26   23   26    23
   7  |    7   10    7   14   14    5    8   14   14    4 |    21   25   16   22   20   17   23   18   16    18
   8E |    8   12    7    7   16    4    7   12    9    3 |    85   86   82   86   90   84   26   86   87    84
   9  |    7   15    6    6   14    4    7    8    9    3 |    21   23   15   20   18   19   22   19   23    18
  10  |    6    7    3    6   10    3    6   11   11    2 |    26   29   27   27   25   28   27   31   28    27
  11  |    9    9   14    9   12    3    8    9   14    4 |    28   32   26   30   28   28   33   29   28    28
  12  |   13   11    7   16    9    5    8   20   22    5 |    23   26   19   21   17   20   26   19   14    19
  13E |   10   11    6   11   18    4    7   11   11    4 |    28   25   22   25   24   24   27   24   24    24
  14  |    8    7    6   10   16    5    8   12   10    3 |    26   27   24   28   23   26   26   25   25    24
  15  |    7   10    6   11   15    3   10   14   16    4 |    26   26   21   21   21   23   28   24   18    22
  16  |    7    8    6   16   14    5    9   13   21    4 |    23   24   19   23   24   22   26   19   21    20
  17E |    8   12    5   11   16    4   10   13   13    4 |    21   26   17   22   17   19   25   20   24    19
  18  |    9   10    6   21   11    5    8   13   18    4 |    22   21   20   34   21   21   21   22   18    19
  19E |   10    8    5   12   19    4    7   18   12    4 |    19   24   16   19   23   18   26   21   21    19
  20  |    4    6    9    8   10    3    6   13   15    3 |    23   23   22   22   21   21   23   25   21    21
  21  |    9    7   10   15   14    4    9   20   21    4 |    27   27   28   27   27   24   26   28   26    24
  22  |   10    6    8    9    8    5    5   17   10    3 |    25   27   25   25   21   26   28   29   24    24
  23  |    7   15    6   13   16    6    8   11   14    4 |    22   25   18   22   23   20   26   17   15    19
  24  |   16   31   17   18  106   18   29   22   24    9 |   385  383  385  380  339  380  382  387  381   383
  25  |    9    8    6    7   10    4    9   15   11    3 |    19   23   13   17   19   19   24   17   20    17
  26  |    9    6    7    9    8    3    8    8   12    3 |    23   23   14   18   18   20   25   19   26    19
  27E |    9    8    6    7   20    4    7   10   12    3 |    26   21   15   22   27   22   25   23   20    20
  28  |    8    9    7   13   14    4    6   14   17    4 |    23   28   19   21   25   19   26   18   14    20
  29E |   16   10    9   15   22    6   11   20   16    5 |    29   29   25   30   26   27   28   28   26    25
  30  |    6    9    7    7   12    5    6    9    7    3 |    23   23   16   21   21   19   24   19   21    19
  31  |    9    9    6   10   12    4    9   13   10    3 |    25   26   19   23   17   22   24   21   18    20
  32  |   10    8    4    5   12    4    6   12    9    3 |    25   24   16   19   17   18   22   18   22    19
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    9   11    8   12   23    5    9   14   14      |T   38   39   34   36   34   36   38   36   36    36
 WRMS |    9   10    7   11   12    4    9   12   14      |NE  38   40   35   37   34   37   40   37   37    36
 MEDI |    8    9    6   10   13    4    8   13   12      |MD  25   26   20   22   23   22   26   22   23    21

Table 3.1924.2   GPS week: 1924   Day: 2   MJD: 57714.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    9    7    6    6    6    3    7   14    7    3 |    25   29   20   26   23   23   27   23   25    22
   2  |   11    7    8   13   11    5    7   15   22    4 |    31   31   30   34   26   29   31   34   36    29
   3  |    7    8    6    9    7    4    9   10   11    3 |    26   32   25   28   26   27   32   27   29    26
  X4  |   16  ---  ---  ---  ---   18   19  ---  ---   17 |   102  ---  ---  ---  ---  102  102  ---  ---   102
   5  |    8    8    7   10    8    5    7   14   18    3 |    34   35   33   32   33   33   35   30   29    32
   6  |    5    9    6    6    8    5    6    8   13    2 |    23   25   19   24   18   22   26   23   22    21
   7  |   10   11    5   13   12    4    8   14   14    4 |    24   27   18   24   21   20   24   20   17    19
   8E |    9   12    8    9   14    4    8   10   14    4 |   105  103  100  103  104  100   27   97   95    99
   9  |    6   12    4    6   12    4    9    9    9    3 |    17   20   14   18   17   17   21   18   20    15
  10  |    8    7    5    8    7    3    7   10    8    3 |    31   33   28   31   29   29   30   35   30    29
  11  |    9    9   14    8   10    4    8   10   13    4 |    29   35   31   34   30   31   33   32   29    30
  12  |   10    7    6   14   11    5    7   17   21    4 |    26   27   20   25   21   22   25   23   20    21
  13E |   10    8    4   12   19    6    9   12   11    4 |    33   36   32   33   37   32   33   36   33    32
  14  |    8    8    6    8   12    4    8   10   14    3 |    23   27   21   22   21   22   24   22   20    20
  15  |    8    8    6   11   16    3    9   16   19    4 |    22   25   21   22   23   19   24   21   19    19
  16  |    7   12    8   15   13    5   10   14   21    4 |    26   27   20   25   23   21   24   18   19    20
  17E |    9   10    5    8   11    4   10   15   14    3 |    24   29   19   24   21   22   27   24   24    22
  18  |    9    9    6   25    8    5    8   15   16    4 |    24   25   24   39   25   23   23   26   23    23
  19E |   15    5    5   12   13    5    7   15   13    4 |    25   26   19   24   21   20   26   23   22    21
  20  |    6    6    7    9   10    3    6   12   14    3 |    23   27   25   28   24   23   24   27   26    23
  21  |    9    7    7   16   14    3    7   17   20    4 |    25   28   27   30   26   24   27   31   28    25
  22  |    5    6   11    9    9    4    9   17   12    3 |    25   28   29   26   24   27   30   28   22    25
  23  |    7   12    5   14   19    4    9   13   17    4 |    25   26   19   26   29   21   28   20   21    21
  24  |    7   11    4   10    9    5   10   10   10    3 |   200  201  201  197  203  200  199  205  204   201
  25  |    7    8    4    6    9    4    9   10   11    3 |    21   25   14   18   16   18   23   19   21    18
  26  |    7    7    7    9    8    5    6    8   17    3 |    25   26   18   21   20   21   23   19   27    20
  27E |    7   10    7    9    9    4    9    9   12    3 |    25   26   19   25   21   22   25   24   20    21
  28  |    7    8    8   10   10    4    7   13   16    3 |    26   28   22   23   22   21   26   20   17    21
  29E |    9   10    7   11   15    5   12   19   15    4 |    29   27   24   28   24   24   27   28   26    24
  30  |    7    8    5    6   10    4    8    7    7    2 |    24   25   20   26   21   23   26   22   21    22
  31  |    5    8    6   10    9    3    9   11   10    3 |    28   28   21   25   21   23   26   21   20    22
  32  |    7    8    5    6   10    2    7    7   10    2 |    26   29   22   21   22   21   26   21   24    22
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    8    9    7   11   11    4    8   13   14      |T   36   36   30   34   32   33   34   32   31    33
 WRMS |    8    9    7   10   11    4    8   12   13      |NE  32   35   30   33   30   30   33   31   31    30
 MEDI |    8    8    6    9   10    4    8   12   14      |MD  25   27   21   26   23   23   26   23   23    22

Table 3.1924.3   GPS week: 1924   Day: 3   MJD: 57715.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7    9    6    8    7    4    9   11    9    3 |    21   23   18   20   17   19   26   22   22    19
   2  |   11    9    9   14    9    5    8   15   21    4 |    30   32   28   35   25   29   29   34   38    29
   3  |    8    9    6    7    9    4   10    9   12    3 |    33   34   28   30   25   29   35   31   31    30
  X4  |   15  ---  ---  ---  ---   38   14  ---  ---   14 |    90  ---  ---  ---  ---   99   94  ---  ---    92
   5  |    9    8    8   12    8    4    7   13   14    3 |    39   40   38   34   39   36   38   36   35    36
   6  |    6    7    5    5    6    5    7    9   13    2 |    23   25   22   23   20   22   27   25   26    22
   7  |   10   11    5   14   11    5    8   14   14    4 |    24   25   18   22   19   18   22   19   18    19
   8E |   12    8    8   12   18    5    8   10   10    4 |   110  107  108  109  106  108   24  106  108   106
   9  |    8   13    5    8   14    5    9   10    8    3 |    18   22   12   16   19   16   20   18   19    15
  10  |    7    7    5    6   11    4    7   11   13    3 |    33   35   30   34   28   34   33   39   39    32
  11  |    9    9   13   12   10    4    9   12   13    4 |    34   37   31   37   27   31   37   32   30    31
  12  |   11   10    7   14    8    5    7   16   20    4 |    29   28   22   24   23   22   28   25   21    23
  13  |    9    9    6   12   24    5    8   15   14    4 |    30   30   28   33   32   28   32   31   33    29
  14  |    8   10    5    8   17    5    9   11   12    3 |    20   24   14   20   22   15   19   19   14    16
  15  |    8    9    7   12   19    6    8   16   18    4 |    23   24   19   22   25   19   23   21   19    19
  16  |    7   11    7   15   13    4   10   14   19    4 |    24   27   23   23   22   22   27   21   26    22
  17E |    9    9    4    9   12    4   13   12   15    4 |    25   27   22   27   29   22   28   25   30    24
  18  |    9   10    7   21    8    4    8   13   17    4 |    28   26   25   37   21   25   24   29   28    25
  19E |   14    7    6   12   14    4   10   13   13    4 |    23   22   17   22   23   17   22   19   19    18
  20  |    5    8    6   11    9    4    7   11   16    3 |    28   26   27   31   24   27   26   32   33    26
  21  |   11    7    8   16   15    6    8   18   21    4 |    32   30   32   33   26   29   29   34   34    29
  22  |    7    7   10   10    8    5    7   12   14    3 |    30   29   30   27   22   27   30   28   27    27
  23  |    7   14    6   12   17    6   10   13   15    4 |    22   27   19   20   30   19   27   21   19    20
  24  |    9   11    4   10   12    4   10   10   13    3 |   230  229  231  228  220  231  230  230  231   230
  25  |    8   10    7    7    7    3    9   12   13    3 |    22   27   16   21   18   18   24   22   22    20
  26  |   14    8    7    8    9    3    8    8   14    3 |    20   28   21   21   18   21   26   22   26    21
  27E |    9   10    5    8   12    5    9   10   12    3 |    24   23   17   24   24   20   23   24   20    20
  28  |    9    7    8   10   11    3    9   14   16    4 |    24   24   21   23   23   20   27   21   21    21
  29E |   16   11    6   14   17    6   10   18   16    5 |    33   29   28   31   28   25   30   29   30    28
  30  |    9    8    5    7   11    3    8    8    9    3 |    27   24   21   24   20   23   23   22   24    22
  31  |    7    8    5    9   10    4    9   13   11    3 |    26   30   20   26   18   22   25   25   18    22
  32  |    9    8    5    7   15    3   10    8    8    3 |    24   28   20   22   26   20   26   19   21    21
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    9    9    7   11   13    5    9   13   14      |T   37   36   32   35   32   34   35   34   34    34
 WRMS |    9    9    6   10   11    5    9   12   14      |NE  35   36   32   34   31   32   35   34   34    32
 MEDI |    9    9    6   10   11    4    9   12   14      |MD  26   27   22   24   24   22   27   25   26    22

Table 3.1924.4   GPS week: 1924   Day: 4   MJD: 57716.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7    8    5    6    7    4    9    8   15    3 |    21   25   19   21   17   20   25   22   30    20
   2  |   10    9    8   15    9    5   11   16   22    4 |    31   29   31   30   25   28   29   32   37    28
   3  |    6    8    5    6    8    5    8    7   13    2 |    32   35   32   30   30   31   34   33   36    31
  X4  |   13  ---  ---  ---  ---   13   11  ---  ---   12 |    61  ---  ---  ---  ---   59   60  ---  ---    60
   5  |    6    7    7   12   10    5    9   14   15    3 |    34   39   36   29   34   32   37   34   34    34
   6  |    5    7    5    6    6    5    9    9   13    2 |    26   26   24   22   22   22   25   24   31    24
   7  |    9   13    7   14   11    5    9   16   15    4 |    22   28   19   24   22   20   25   21   20    21
   8E |   10   10    7    9   19    5   11   13   15    4 |   114  115  111  114  115  113   21  114  116   113
   9  |    9    9    6    8   11    4    9    9   11    3 |    19   22   16   19   19   18   22   19   25    18
  10  |    6    8    4    5   12    3    8   10   15    3 |    35   37   35   36   33   35   37   38   41    35
  11  |    9   12   13   10   13    4   11   10   18    4 |    34   42   34   39   30   35   39   37   36    35
  12  |   12    8    7   15   12    5   10   16   22    4 |    26   28   21   29   25   22   29   27   25    24
  13  |   10    8    6   12   15    4   10   12   17    4 |    20   23   19   22   20   19   24   20   28    20
  14  |    6    8    5    9   15    4    7   11   14    3 |    21   26   19   24   25   20   22   19   21    20
  15  |   12    6    8   12   18    5    8   15   22    4 |    25   25   23   21   28   20   25   20   23    21
  16  |   11    9    7   13   13    5    9   16   22    4 |    30   25   21   24   26   22   26   23   25    22
  17E |   11   11    5    7   13    3   11   10   13    3 |    25   30   24   25   25   24   30   25   29    25
  18  |   10    8    6   17    7    4    7   13   19    4 |    24   24   25   32   24   22   23   24   28    23
  19E |   11    7    6   10   13    3   11   13   13    4 |    21   24   19   21   24   19   25   20   23    20
  20  |    8    6    7   11    8    4    8   12   16    3 |    30   28   28   32   26   26   28   32   35    28
  21  |    9    7    8   14   12    5    9   16   23    4 |    32   33   33   38   29   32   34   36   39    32
  22  |    5    4    9    9   10    5    5    9   13    3 |    28   27   29   27   22   28   29   28   28    26
  23  |    5    9    5   12   20    5    9   13   19    4 |    25   29   24   28   32   25   29   24   29    25
  24  |   13   13    5    9    8    5    8    9   15    3 |   101  102  107  104  100  102  103  103  107   103
  25  |    9    9    4    7    7    4    9   10   12    3 |    24   27   18   25   21   21   26   24   25    22
  26  |    9    8    5    7    9    4    9    7   16    3 |    27   27   19   24   23   24   27   21   28    23
  27E |    9    8    6    9   23    5    8   11   13    4 |    24   22   16   23   22   20   22   22   23    19
  28  |    9    9    6   10   10    4    7   13   15    3 |    26   28   22   22   23   20   27   22   23    22
  29E |   14   11    8   15   17    5   11   19   19    5 |    31   23   21   29   28   22   25   27   29    23
  30  |    9    9    6    6   10    3   10    7    9    3 |    24   25   20   22   21   22   25   22   24    22
  31  |    9    8    5    8   11    4    8   10   13    3 |    30   31   23   28   25   25   28   27   25    26
  32  |    6   10    4    6   13    3    8    8   10    3 |    26   29   25   24   28   23   27   22   26    24
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    9    9    6   10   13    4    9   12   16      |T   32   33   29   31   30   30   30   31   33    30
 WRMS |    9    9    6   10   11    4    9   11   16      |NE  30   32   28   30   28   28   31   29   32    28
 MEDI |    9    8    6    9   11    4    9   11   15      |MD  26   28   23   25   25   22   27   24   28    24

Table 3.1924.5   GPS week: 1924   Day: 5   MJD: 57717.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7   10    7    9   11    5   10    8   11    3 |    24   30   22   25   17   23   31   24   28    24
   2  |   11   10    8   14    9    6   11   16   21    4 |    29   27   26   29   23   25   27   27   28    25
   3  |   12   10    6    8    9    4   11    8   10    3 |    29   31   24   24   19   25   33   26   28    25
  X4  |   18  ---  ---  ---  ---   20   16  ---  ---   17 |    76  ---  ---  ---  ---   62   63  ---  ---    60
   5  |    7    9    8   10   10    5   12   13   15    4 |    33   37   35   28   31   31   35   30   31    32
   6  |    9    8    6    6    8    4    8    8    8    2 |    30   31   26   26   25   27   32   28   28    28
   7  |   11    8    6   15   11    5   10   18   12    4 |    27   25   16   24   18   19   25   23   19    19
   8E |   15   15    7   11   14    5   13   15   10    4 |   184  169  167  165  172  168   27  164  169   168
   9  |   15    8    7    7   18    5   10   10    8    4 |    27   19   16   19   19   18   23   18   18    17
  10  |   10    9    5    9   10    4    8   12   11    3 |    28   31   24   31   25   25   28   28   30    27
  11  |   13    7   14   11   13    7   12   11   12    4 |    33   36   30   33   24   29   36   35   31    31
  12  |   12   13    7   14   12    4    8   17   16    4 |    25   26   18   24   20   20   26   20   16    19
  13  |   11    8    7   12   17    4    9   12   15    4 |    22   23   21   20   19   19   25   21   20    20
  14  |   11   10    7   10   15    5    8   14   15    4 |    23   23   19   25   21   19   22   19   21    18
  15  |   10   12    7   12   16    5   11   13   17    4 |    23   23   17   19   21   16   23   19   15    17
  16  |   11    9    7   11   15    5   10   15   17    4 |    25   26   19   22   23   19   25   18   19    20
  17E |    9   10    7   10   11    4   13   12   14    4 |    22   25   22   24   16   21   26   22   29    21
  18  |   13    9    8   18    7    4    9   14   17    4 |    23   19   21   32   16   18   17   20   21    19
  19E |   16    8    7   10   14    4   12   14   13    4 |    23   23   21   22   19   19   25   20   23    20
  20  |    8    8    7    9    6    4    7   11   14    3 |    24   25   25   25   22   24   24   26   27    24
  21  |    9    8    8   15   14    5    7   15   20    4 |    31   30   31   29   26   28   30   28   28    28
  22  |    8    5   10    9   11    6    8    9   11    3 |    27   28   28   24   19   27   31   26   28    26
  23  |   14   11    8   11   23    6   11   12   18    5 |    35   32   29   29   33   29   36   21   25    28
  24  |    9   11    6    9    9    5   10   11   10    3 |   166  169  171  169  163  168  170  169  172   169
  25  |   10   11    6    8    9    3    9   10   12    3 |    21   23   12   21   16   16   22   17   19    17
  26  |   10    9    7    8    9    4   13    7   10    3 |    25   27   16   22   16   20   27   20   24    21
  27E |   15    8    7    7   21    5    9   10   14    4 |    30   26   19   23   23   23   25   26   23    22
  28  |    9    9   10   10   12    5   11   15   16    4 |    24   30   19   20   22   18   29   20   14    20
  29E |   13   12    6   12   17    4   11   19   15    5 |    27   23   19   25   27   21   22   26   25    21
  30  |   15    9    7    9   12    4   11    6    9    3 |    26   21   15   20   16   20   22   21   22    18
  31  |   11    8    4   10   13    4   10   11   10    3 |    23   24   15   23   15   18   22   16   11    16
  32  |    7   12    6    8   12    4   10   15    7    3 |    22   26   18   23   21   19   25   17   19    19
------+---------------------------------------------------+----------------------------------------------------
 RMS  |   11   10    7   11   13    5   10   13   14      |T   37   35   31   33   30   32   32   32   32    32
 WRMS |   11   10    7   10   11    5   10   12   13      |NE  32   33   28   30   27   28   33   29   29    28
 MEDI |   11    9    7   10   12    5   10   12   13      |MD  26   26   21   24   21   21   26   22   24    21

Table 3.1924.6   GPS week: 1924   Day: 6   MJD: 57718.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7   15    6   10   13    4    8    8   11    3 |    25   41   23   28   21   24   28   25   31    24
   2  |   12   12    7   15   11    5    7   16   24    4 |    31   34   27   36   26   27   28   31   36    28
   3  |   10   11    5   11   11    6    8    8   11    3 |    43   49   39   42   33   40   44   43   44    40
  X4  |  210  ---  ---  ---  ---   24    5  ---  ---    0 |   211  ---  ---  ---  ---   94   88  ---  ---    90
   5  |    9   13    6   12   10    4    7   15   14    4 |    44   50   46   45   49   44   49   42   45    45
   6  |    8   15    5    5    8    3    6    8    8    3 |    25   30   20   26   26   22   28   23   24    22
   7  |    8   17    5   15   13    5    9   16   12    4 |    29   38   24   32   26   28   31   28   30    27
  X8E |  119   34   18   40   87   23  ---   41   37   16 |   447  450  448  451  453  445  ---  451  456   449
   9  |    9   16    6    8   18    5    7   13   11    4 |    22   29   14   24   26   20   24   17   25    18
  10  |    7   15    5   10   10    5    9   10   17    3 |    44   56   43   45   39   44   47   48   48    44
  11  |    9   17   12   15   14    6    9   15   22    5 |    38   53   35   44   31   38   42   45   43    37
  12  |   10   18    7   13   11    5    7   16   17    4 |    23   33   18   26   20   20   23   22   20    20
  13  |    7   13    5   12   18    5    9   12   18    4 |    27   32   23   30   28   28   29   26   26    25
  14  |    7   15    6    8   20    4    7   13   20    4 |    28   41   28   31   36   28   28   22   26    26
  15  |    8   16    6   12   22    5    6   14   22    4 |    20   33   21   24   30   20   22   21   19    19
  16  |   11   17    5   12   13    6    8   14   18    4 |    26   32   19   23   27   19   23   17   22    19
  17E |   12   20    6   10   21    6    9   15   15    4 |    22   39   19   26   28   22   25   24   27    21
  18  |   10   13    7   15   11    4    8   16   17    4 |    24   31   23   35   22   24   21   26   25    22
  19E |   21   15    8   12   25    6    7   15   16    5 |    28   34   17   23   32   18   21   20   22    18
  20  |    6   14    7   10   11    4    6   13   17    3 |    31   31   32   39   28   31   29   34   36    31
  21  |   13   13    6   15   14    5    8   14   23    4 |    34   40   34   38   28   32   32   36   36    32
  22  |   11   12   11   13   11    6    5   10   15    4 |    34   41   37   34   26   34   34   36   32    33
  23  |    8   20    6   14   21    6   11   18   19    5 |    50   58   45   49   51   47   47   49   49    46
  24  |   15   29    4   10   13    5    7   10    8    4 |   171  171  168  171  162  170  170  170  170   170
  25  |   11   19    5    8   10    4    9   10    8    3 |    19   36   14   22   18   18   23   18   19    18
  26  |   12   12    5   10    9    3    8    6   10    3 |    25   33   15   21   18   20   25   19   27    20
 X27E |    8   24    9   13   53    9  ---   13  ---    9 |    34   45   29   35   65   35  ---   33  ---    31
  28  |    6   16    7   11   13    5    7   17   14    4 |    24   35   22   21   19   19   25   24   17    21
  29E |   15   13    7   14   25    3   10   23   16    5 |    24   28   18   29   30   20   19   27   29    20
  30  |    7   16    6    7   13    4    9   10    8    3 |    25   34   22   25   20   23   26   23   26    22
  31  |   10   13    4   10   12    4    8    9    8    3 |    35   47   29   34   32   30   31   27   29    30
  32  |    6   16    4    7   16    4    7   10   12    3 |    34   46   30   34   39   31   35   26   30    32
------+---------------------------------------------------+----------------------------------------------------
 RMS  |   10   16    6   12   15    5    8   13   16      |T   53   56   44   49   48   47   36   46   48    46
 WRMS |   10   16    6   11   13    5    8   12   14      |NE  36   45   33   38   34   34   36   35   36    34
 MEDI |    9   15    6   12   13    5    8   13   15      |MD  28   38   24   32   28   28   28   26   29    26



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 4.1924   GPS week: 1924   MJD: 57712.0-57718.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |U    5     5    12 |U    7     9    22 |U    7     7    16 |
emr | emr 2976 |     7     7    18 |U    8     9    23 |     7     5    16 |
esa | esa 2976 |     6     7    15 |U    7    10    25 |     8     7    17 |
gfz | gfz 2974 |U    5     6    13 |U    7     9    24 |U    6     6    16 |
grg | grg 2974 |U    6     7    14 |U    7    10    25 |     8     9    22 |
igr | igr 2976 |     6     6    13 |     7     9    25 |     7     6    16 |
igs | igs 2976 |     6     6    14 |     7     9    23 |     7     6    16 |
jpl | jpl 3043 |     6     7    16 |U    7     9    24 |     7     7    19 |
mit | mit 2976 |     6     7    16 |U    8    12    28 |U    8     7    18 |



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 5.1924.0   GPS week: 1924   Day: 0   MJD: 57712.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3069 |     8     6    15 |     9    11    23 |     7     8    17 |
emr | emr 2976 |    10     8    18 |     9    11    24 |     6     4    16 |
esa | esa 2976 |     8     8    18 |     8    13    27 |     7     7    16 |
gfz | gfz 2971 |     7     6    15 |     8    13    24 |     6     7    14 |
grg | grg 2972 |     8     7    16 |     9    13    29 |     7     9    18 |
igr | igr 2976 |     8     7    16 |     8    12    24 |     6     8    15 |
igs | igs 2976 |     8     7    16 |     8    12    23 |     6     6    14 |
jpl | jpl 3067 |     9     7    18 |     8    12    27 |     7     6    17 |
mit | mit 2976 |     7     7    16 |     9    12    24 |     6     8    16 |

Table 5.1924.1   GPS week: 1924   Day: 1   MJD: 57713.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     6     9    16 |     7     9    22 |     7     7    17 |
emr | emr 2976 |     8    10    21 |    10     8    24 |     6     5    18 |
esa | esa 2976 |     8    12    21 |     8     9    24 |     7     8    18 |
gfz | gfz 2973 |     8    10    19 |     8     9    24 |     7     7    18 |
grg | grg 2971 |     7    10    18 |     9    11    27 |     7     9    26 |
igr | igr 2976 |     8    11    19 |     8     8    24 |     6     8    17 |
igs | igs 2976 |     7    11    19 |     8     9    23 |     6     7    18 |
jpl | jpl 3072 |     7    11    21 |     9     8    22 |     7     7    20 |
mit | mit 2976 |     7     9    20 |     8    10    24 |     6     7    18 |

Table 5.1924.2   GPS week: 1924   Day: 2   MJD: 57714.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     6    12 |     6    11    21 |     5     6    13 |
emr | emr 2976 |     7     8    19 |     7    11    20 |     5     5    13 |
esa | esa 2976 |     6     8    15 |     6    11    23 |     6     6    14 |
gfz | gfz 2975 |     5     5    14 |     5    10    23 |     5     6    12 |
grg | grg 2975 |     6     8    14 |     6    10    20 |     7     6    15 |
igr | igr 2976 |     5     7    15 |     6    10    22 |     5     6    12 |
igs | igs 2976 |     5     7    14 |     6    10    21 |     5     6    12 |
jpl | jpl 3072 |     6     8    17 |     6    11    23 |     5     5    15 |
mit | mit 2976 |     4     5    17 |     7    12    26 |     6     7    13 |

Table 5.1924.3   GPS week: 1924   Day: 3   MJD: 57715.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     3     4    12 |     5     7    18 |     8     6    19 |
emr | emr 2976 |     6     5    18 |     6     7    22 |     7     5    22 |
esa | esa 2976 |     5     5    16 |     5     7    26 |     8     7    22 |
gfz | gfz 2976 |     4     4    13 |     6     5    22 |     7     6    20 |
grg | grg 2976 |     5     6    14 |     5     8    23 |     7     7    22 |
igr | igr 2976 |     4     4    13 |     5     6    25 |     7     6    20 |
igs | igs 2976 |     4     4    13 |     5     6    23 |     7     6    20 |
jpl | jpl 3072 |     5     5    16 |     6     6    24 |     7     6    20 |
mit | mit 2976 |     5     5    14 |     5     6    27 |     9     8    18 |

Table 5.1924.4   GPS week: 1924   Day: 4   MJD: 57716.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     5     5     9 |     7    10    23 |     9     7    17 |
emr | emr 2976 |     6     8    14 |     8    10    20 |     8     6    15 |
esa | esa 2976 |     6     7    11 |     6    10    24 |     9     7    18 |
gfz | gfz 2976 |     5     6     7 |     6    11    26 |     8     6    17 |
grg | grg 2976 |     5     8     9 |     6     9    25 |    11    12    26 |
igr | igr 2976 |     5     6     8 |     6    10    24 |     8     7    16 |
igs | igs 2976 |     5     6     8 |     6    10    23 |     8     7    16 |
jpl | jpl 3072 |     6     6    12 |     7    10    24 |     8     6    18 |
mit | mit 2976 |     7     9    16 |     7    15    23 |     9     6    15 |

Table 5.1924.5   GPS week: 1924   Day: 5   MJD: 57717.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     5     5    11 |     6     7    24 |     7     6    16 |
emr | emr 2976 |     6     5    17 |     6     5    23 |     7     6    19 |
esa | esa 2976 |     5     4    12 |     6     7    26 |     8     8    21 |
gfz | gfz 2976 |     5     4    11 |     6     6    25 |     7     6    19 |
grg | grg 2976 |     5     5    12 |     7     6    23 |    10    11    26 |
igr | igr 2976 |     5     3    11 |     6     6    24 |     7     5    17 |
igs | igs 2976 |     5     4    12 |     6     6    24 |     7     6    19 |
jpl | jpl 3072 |     5     3    15 |     6     7    23 |     6     7    20 |
mit | mit 2976 |     9     7    17 |     8    12    35 |    10     9    27 |

Table 5.1924.6   GPS week: 1924   Day: 6   MJD: 57718.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     4    10 |     9    11    25 |     7     5    12 |
emr | emr 2976 |     8     5    22 |    11    11    27 |     9     6    13 |
esa | esa 2976 |     6     6    16 |     9    11    23 |     8     5    14 |
gfz | gfz 2976 |     6     5    13 |     8    11    26 |     7     6    15 |
grg | grg 2976 |     6     5    18 |     8    11    28 |    10     8    22 |
igr | igr 2976 |     6     4    13 |     9    11    29 |     7     5    13 |
igs | igs 2976 |     6     5    14 |     9    11    24 |     8     6    13 |
jpl | jpl 2880 |     7     6    17 |     9    11    26 |     9    12    20 |
mit | mit 2976 |     7     5    13 |    12    17    35 |     8     7    16 |


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    : 10-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 6.1924   GPS week: 1924   MJD: 57712.500-57718.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -3       6      90     -11      6 |       7     17
            |      19      18      38      82      5 |       3
emr   uuuux |      10      12    -109      21      1 |      12     25
            |      51      20      59      55     30 |       8
esa   uuuuu |      -3     -15     129      22      7 |      -1     15
            |      17      10      46      44      4 |       3
gfz   uuuuu |      -2      11     -47    -158     -4 |      14     21
            |      16      15      57      92      5 |       4
grg   uuuuu |       3     -20      10     147     -2 |      -1     14
            |      23      14      56      50      4 |       2
igr   xxxxx |     -21       0      54      17      0 |      -7     16
            |      18      11      52      53      6 |       4
irf   xxxxx |      34      -3       2      26      2 |     -10     18
            |      13       8      45      28      8 |       4
jpl   uuuuu |     -27      -6     -11     -29    -10 |      14     22
            |      27      17     107      49      9 |       6
mit   uuuuu |      31      14     -19      58    -13 |      24     31
            |      23      19      76      84      7 |       8
sio   uuuux |      19       5    -239     -19     -5 |      28     32
            |      25      17      52      66     11 |       6


Table 7.1924.0   GPS week: 1924   Day: 0   MJD: 57712.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      22      -4      57      -3     -1 |      11     18
emr   uuuux |     -44      43    -160     -68    -30 |      24     31
esa   uuuuu |      10      -7     145      69      2 |       3     13
gfz   uuuuu |     -15       7       5    -124     -7 |      20     22
grg   uuuuu |     -13     -25     106     161      3 |       0     11
igr   xxxxx |     -13       3      29     -42     -4 |      -2     10
irf   xxxxx |      29     -13      64      -5     -6 |      -4     13
jpl   uuuuu |      -9     -17    -120     -39     -4 |      20     25
mit   uuuuu |      22     -15      92     -35    -15 |      36     39
sio   uuuux |      33      14    -227      37      0 |      35     38

Table 7.1924.1   GPS week: 1924   Day: 1   MJD: 57713.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      20      -7      58     -59      4 |       9     18
emr   uuuux |     -28      10    -103      18    -16 |      18     30
esa   uuuuu |      -7     -17      89      72      6 |       1     14
gfz   uuuuu |     -20       9      36       2     -6 |      18     22
grg   uuuuu |     -36       1     -50     178     -1 |       0     12
igr   xxxxx |       5      -1     104      65      5 |      -4     13
irf   xxxxx |      21     -12      37      -9     -8 |      -6     16
jpl   uuuuu |      13       1     -35     -52     -1 |      18     24
mit   uuuuu |      36      19      48     -68    -25 |      32     37
sio   uuuux |      25       1    -139    -103    -20 |      33     36

Table 7.1924.2   GPS week: 1924   Day: 2   MJD: 57714.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -18       6      99     -68     12 |       9     17
emr   uuuux |       6      13     -54     -33     -6 |      16     28
esa   uuuuu |      -4     -29     169       6      5 |       1     15
gfz   uuuuu |      16      31    -119    -153     -6 |      18     22
grg   uuuuu |       7      -9      40     179     -1 |       2     12
igr   xxxxx |     -21      18       9       3     -8 |      -3     14
irf   xxxxx |      25       5       0      25     -4 |      -7     16
jpl   uuuuu |     -12       1     -57      61    -18 |      19     26
mit   uuuuu |      14      -6     -34      59    -17 |      29     34
sio   uuuux |       9      13    -284       0     -2 |      31     34

Table 7.1924.3   GPS week: 1924   Day: 3   MJD: 57715.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -1      43      65     138      6 |       7     15
emr   uuuux |      -6      12     -25      36     -2 |      11     22
esa   uuuuu |     -11      -2     187     -26      7 |      -1     12
gfz   uuuuu |       4      13     -51    -283     -3 |      15     19
grg   uuuuu |      15     -45     -20     157     -5 |       0     12
igr   xxxxx |     -13       1     110      79      0 |      -6     14
irf   xxxxx |      49      -8     -16      23      2 |     -11     16
jpl   uuuuu |     -52     -23     -87     -25     -2 |      14     21
mit   uuuuu |      62       4     -55      89    -15 |      24     28
sio   uuuux |      34     -25    -268     -64     -6 |      29     31

Table 7.1924.4   GPS week: 1924   Day: 4   MJD: 57716.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       0      -3      94    -109      0 |       6     17
emr   uuuux |      10       2     -94      62     -3 |       8     23
esa   uuuuu |     -33      -6     142      -8      6 |      -3     15
gfz   uuuuu |       6     -17     -26    -171     -3 |      11     20
grg   uuuuu |      37     -26      38     194      3 |      -3     17
igr   xxxxx |     -16     -18     100      66     -7 |      -8     19
irf   xxxxx |      57       1     -11      73      9 |     -13     20
jpl   uuuuu |     -46      24     -48      -4    -13 |      12     22
mit   uuuuu |      62      31     -72     170     -7 |      20     29
sio   uuuux |      20     -10    -255     -83    -15 |      26     31

Table 7.1924.5   GPS week: 1924   Day: 5   MJD: 57717.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -26      -7     165      39      8 |       3     16
emr   uuuux |      16      24    -136      39     -1 |       3     21
esa   uuuuu |       5     -23     114     -21      8 |      -5     16
gfz   uuuuu |      16      16     -67    -133      7 |       9     19
grg   uuuuu |      10     -16       2     111     -5 |      -5     18
igr   xxxxx |     -42      -9      46      -4     10 |     -12     21
irf   xxxxx |      26       0      19      43     11 |     -15     21
jpl   uuuuu |     -21     -23      81     -98    -25 |       7     21
mit   uuuuu |      22      28      18     120     -7 |      16     27
sio   uuuux |     -31      18    -287       4     -5 |      21     28

Table 7.1924.6   GPS week: 1924   Day: 6   MJD: 57718.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -20      11      92     -14     12 |       5     19
emr   uuuux |     113     -22    -192      93     64 |       3     21
esa   uuuuu |      19     -20      55      60     13 |      -3     18
gfz   uuuuu |     -22      19    -107    -247    -10 |      10     21
grg   uuuuu |       4     -21     -49      51     -7 |      -4     18
igr   xxxxx |     -48       2     -21     -49      1 |     -10     22
irf   xxxxx |      32       6     -78      28     12 |     -13     22
jpl   uuuuu |     -64      -4     185     -44     -9 |       6     20
mit   uuuuu |       1      33    -128      71     -6 |      15     25
sio   uuuux |      44      20    -216      74     13 |      20     26



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