[IGSREPORT-24525] Wk 1899 IGS Final Orbits

IGS ACC acc at igs.org
Thu Jun 16 16:57:01 PDT 2016


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1899   (May 29, 2016 - Jun 04, 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:

igs1899[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1899[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1899[0-6].cls  IGS GPS clock combination summary report.
igs18997.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18997.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  |  COD   | 21 ZECK FAA1 MAC1 SYOG ZECK
                0  |  ESA   | MAL2 MAL2 MAW1
                0  |  GFZ   | 32 32 BJNM FAA1 IRKJ MAC1 MAL2 BJNM FAA1 IRKJ MAL2
                0  |  GFZ   | NRMD
                0  |  GRG   | HARB POHN ALRT ARTU POHN
                0  |  JPL   | TUVA
                1  |  GFZ   | 32 32 BJNM DRAG HYDE IRKJ MAL2 POHN SYOG IRKJ MAL2
                1  |  GFZ   | POHN SYOG
                1  |  GRG   | 18 18 FAA1 HARB POTS DRAG FAA1 HARB HYDE NNOR POTS
                1  |  GRG   | SYOG
                1  |  JPL   | 18
                2  |  COD   | BOGT MAW1 NKLG
                2  |  ESA   | BOGT MAL2 TWTF DRAG MAW1
                2  |  GFZ   | 32 32 ALGO BJNM FAA1 IRKJ MAL2 ONSA POHN SYOG TWTF
                2  |  GFZ   | BJNM FAA1 IRKJ ONSA POHN SYOG
                2  |  GRG   | BOGT DRAG NNOR BOGT DRAG FAA1 HARB NNOR SYOG TWTF
                2  |  JPL   | TUVA
                3  |  COD   | GODE
                3  |  EMR   | SYOG YAKT
                3  |  ESA   | QAQ1 THTI QAQ1 THTI
                3  |  GFZ   | 32 32 ALGO BRFT FAA1 GMSD GODE IRKJ MAL2 MAS1 NLIB
                3  |  GFZ   | PRDS STHL SYOG ALGO IRKJ MAL2
                3  |  GRG   | 18 DRAG GODE MAL2 DRAG FAA1 GODE SYOG
                3  |  JPL   | THTI TUVA
                4  |  COD   | HOB2 MAL2 HOB2 MAL2
                4  |  EMR   | YAKT
                4  |  ESA   | HOB2 DRAG HOB2
                4  |  GFZ   | 32 32 ALGO BJNM DRAG FAA1 IRKJ MAL2 SYOG TWTF HOB2
                4  |  GFZ   | MAL2 TWTF
                4  |  GRG   | COCO HARB COCO DRAG HARB TWTF
                4  |  MIT   | TWTF TWTF
                5  |  COD   | 8 27 FAA1 FAA1 HOB2
                5  |  EMR   | 8 27 8 27 THU3 YAKT
                5  |  ESA   | HOB2 MAL2 DRAG HOB2 MAL2 REUN TONG
                5  |  GFZ   | 32 32 ALGO DRAG FAA1 HOB2 MAL2 MATE POHN ALGO FAA1
                5  |  GFZ   | HOB2 MAL2 MATE POHN
                5  |  GRG   | BRFT HARB BRFT DRAG HARB SYOG
                5  |  JPL   | 27 TUVA
                5  |  MIT   | HOB2 HOB2
                6  |  COD   | MAL2
                6  |  EMR   | 8 HOB2
                6  |  ESA   | DRAG
                6  |  GFZ   | 32 32 ALGO FAA1 HOB2 MAL2 THU3 FAA1 IRKJ THU3
                6  |  GRG   | 18 HARB DRAG HARB MAL2
                6  |  JPL   | 8
                6  |  MIT   | HOB2 IRKJ

 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. 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 G27 |    |    |    |    |    |  4 |    |

 7. 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.

 8. 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 |     .0   -1.5    -.9     -31    -23    -20     .74
       EMR  |   0 |    4.6   -9.3   12.1      43     -4      8     .82
       ESA  |   0 |    -.8   -2.3    -.2      -8    -23     51     .78
       GFZ  |   0 |    -.5   -1.4   -2.0     -38    -71    -17     .95
       GRG  |   0 |    5.6   -9.5   -3.0     -31    -47     85     .78
       JPL  |   0 |    7.0   -7.3   12.7       1      1     19    1.04
       MIT  |   0 |    -.3   -4.8   18.9       1      1    -53     .98
       NGS  |   0 |    3.3   -7.6   25.2    -170    -51    -39     .88
       SIO  |   0 |    3.2   -3.5   16.2      -9    -22      8    1.01

       COD  |   1 |     .4   -1.9   -1.0     -40    -24    -27     .71
       EMR  |   1 |     .8   -8.7   11.6      50      2    -24     .75
       ESA  |   1 |    -.3   -2.8    -.5     -12    -23     25     .68
       GFZ  |   1 |     .4   -1.2   -1.1     -49    -89     -4     .73
       GRG  |   1 |    8.6  -11.8    6.1     -16    -80     93     .79
       JPL  |   1 |    -.0   -5.9    9.4      -4      3     18     .94
       MIT  |   1 |   -3.9   -5.6   16.6      16     -7    -40    1.05
       NGS  |   1 |   -3.1   -5.4   13.1     -85    -24    -32     .88
       SIO  |   1 |     .7   -2.0   22.0     -31    -17     -1     .77

       COD  |   2 |    -.9    -.5   -1.2     -25    -11     -3     .81
       EMR  |   2 |     .3    -.7   13.4      36    -13     20     .86
       ESA  |   2 |    -.4   -2.3    -.5      -5    -31     52     .81
       GFZ  |   2 |     .2   -1.2   -1.3     -53    -79    -11     .86
       GRG  |   2 |    8.7   -2.7   11.4     -28    -72    117     .51
       JPL  |   2 |    -.5    2.4   10.3     -17     10      1     .37
       MIT  |   2 |   -3.1   -2.7   18.2      19      3    -30     .97
       NGS  |   2 |   -2.6   -1.0   31.1    -187    -33    -54     .68
       SIO  |   2 |    5.0    1.1   20.9       2    -21     19     .75

       COD  |   3 |     .1   -1.5    -.4     -71    -18    -27     .66
       EMR  |   3 |   -2.0    2.5   11.3      32    -17     21     .85
       ESA  |   3 |    -.2   -2.8   -1.0     -29    -25     10     .61
       GFZ  |   3 |     .7    -.8   -1.2     -61    -84    -48     .73
       GRG  |   3 |    4.5   -3.7   -5.5      -2    -95     94     .37
       JPL  |   3 |    5.8    -.1    7.5     -17     28     34     .40
       MIT  |   3 |     .3   -4.4   21.1      17      1    -22     .98
       NGS  |   3 |    1.1   -7.3   18.8    -121    -40    -14     .78
       SIO  |   3 |    4.5    -.3   24.4     -16    -15     12     .76

       COD  |   4 |    -.2   -1.4   -1.2     -46     15    -16     .76
       EMR  |   4 |   -2.7    3.5    9.4      17     -5    -20     .60
       ESA  |   4 |    -.7   -1.5   -1.4      -6    -14     30     .35
       GFZ  |   4 |     .1   -1.5   -2.2     -56    -70    -23     .62
       GRG  |   4 |    5.4   -3.4    5.3      -4    -64     85     .47
       JPL  |   4 |   -3.6    2.6    9.2     -14     29      8     .36
       MIT  |   4 |   -1.8   -7.9   15.6      -3      2    -32    1.07
       NGS  |   4 |    -.1   -7.7   19.3    -134    -22    -18     .94
       SIO  |   4 |    2.7   -3.8   21.2     -19    -22      8     .88

       COD  |   5 |    -.9   -2.2   -1.0     -64     -4    -22     .86
       EMR  |   5 |  -14.4   19.6   13.7      58     18     -5     .61
       ESA  |   5 |   -1.5   -2.1    -.5      -5    -13     44     .46
       GFZ  |   5 |     .3   -1.1    -.8     -39    -89     -8     .67
       GRG  |   5 |    6.4   -2.1   17.0     -30    -73     85     .26
       JPL  |   5 |  -13.1   -2.5    9.3       3     -9    -39     .71
       MIT  |   5 |   -6.5   -6.3   16.2       7    -13    -14     .90
       NGS  |   5 |   -6.3  -15.6   26.6    -210      4    -92     .77
       SIO  |   5 |    1.8   -3.5   27.3     -31      1    -36     .55

       COD  |   6 |    -.1   -1.2    -.2     -45    -14     -6     .72
       EMR  |   6 |   -4.1    2.9   18.9      43      1    -31     .63
       ESA  |   6 |    -.1   -2.5    -.9     -18    -35      6     .54
       GFZ  |   6 |     .8    -.9   -1.1     -51    -88    -42     .51
       GRG  |   6 |    2.3   -5.4   19.0     -32    -85    102     .61
       JPL  |   6 |    3.5   -7.8    5.3      21    -10    -27     .38
       MIT  |   6 |   -3.5  -12.0   15.9     -12     -5    -38     .89
       NGS  |   6 |    3.9  -10.5   19.5    -154    -26    -19     .81
       SIO  |   6 |    -.5   -7.0   11.6     -38     -4     -6     .46


 9. 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.

10. 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 1.1899.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1899.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 2.1899.[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 3.1899.[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 5.1899.0-6). 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 1899 summary.                       (May 29, 2016 - Jun 04, 2016)

Table 1.1899.a   GPS week: 1899   MJD: 57537.000-57543.000

         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  239|    0     0    -3    13     0    -7   .13   11   11 |   -1331     160     13    165
        |    1     0     2    20    15    15   .06           |     103     175
emr   80|    0     3     2    23     5     9   .29   10   10 |    4036    -257     15    124
        |    2     5     2    13    20    16   .04           |     602     403
esa  150|    0     0    -4    -3     0     8  -.47    7    7 |    -709     -50      7    162
        |    0     0     1    10    11    17   .02           |     521    1084
gfz  207|    0     0     1     0   -14   -20   .11   11   11 |    -357     150     11    145
        |    1     1     1    15     4    11   .02           |     311     452
grg  115|    2    -2    -4   -20    28    44  -.13   15   14 |     -73     101     13    198
        |    1     1     6    17    19    15   .11           |     123     173
igr  n/a|    0     0    -1    12    14    -4  -.03    4    4 |   11370    -154     15     88
        |    0     0     1    11    11    12   .01           |     480     353
jpl   80|   -1     1     0    11    20     1   .29    9    9 |    2421    -184     15    124
        |    3     1     0    16    17    14   .04           |     658     374
mit  350|    0    -2     5   -22   -31    -3  -.12   13   12 |    -135    -104     47    366
        |    0     1     1    22    23    17   .05           |     165     145
ngs  227|    0     0     7   -11    -4    -2   .12   11    9 |   -1293     126    811   1970
        |    1     0     3    14    15    25   .08           |     110     160
sio  298|    0     0    -3    -3   -26   -18  -.06   15   14 |     ---     ---    ---    ---
        |    1     0     0    22    22    46   .06           |     ---     ---


Table 1.1899.b   GPS week : 1899   MJD: 57537.000-57543.000   

         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    4    4    4    4 |
   3  |    3    3    3    3    3    4    3 |
   4  |    0    0    0    0    0    0    0 |
   5  |    4    4    4    4    4    4    4 |
   6  |    3    3    3    3    3    3    3 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    4    4    4    5    7   10 |
   9  |    4    3    3    3    3    3    4 |
  10  |    3    3    3    3    3    4    4 |
  11  |    4    4    4    4    4    5    5 |
  12  |    5    4    5    5    4    5    5 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    4    4    4    4    5    5 |
  15  |    4    4    4    4    4    4    4 |
  16  |    5    5    5    5    5    6    6 |
  17  |    4    4    3    3    3    4    3 |
  18  |    4    4    5    5    4    5    5 |
  19  |    5    4    4    4    4    5    4 |
  20  |    3    4    4    3    3    4    4 |
  21  |    5    5    5    5    5    6    5 |
  22  |    3    3    3    3    3    4    3 |
  23  |    4    4    5    4    5    5    4 |
  24  |    4    4    4    3    3    4    4 |
  25  |    3    3    3    3    3    4    4 |
  26  |    3    3    3    3    3    4    3 |
  27  |    3    3    4    3    4    7    4 |
  28  |    4    3    3    4    4    5    4 |
  29  |    4    4    5    4    4    4    4 |
  30  |    3    3    3    3    3    4    3 |
  31  |    4    4    3    3    4    4    4 |
  32  |    3    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 2.1899.0   GPS week: 1899   Day: 0   MJD: 57537.000                            

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  242|    0     0    -4    -3     8   -21   .12   10   10 |   -1413     343     13    161
emr   80|    1    -2     0     3     3    -6   .32    9    9 |    4625    -484     13    141
esa  150|   -1     0    -2     4    -8    13  -.46    6    6 |   -1511     929      7    164
gfz  208|   -1     1     2    11   -11   -14   .15   11   11 |    -597     250     12    178
grg  118|    0     0    -9   -32    38    28  -.30   14   14 |    -116     127     13    248
igr  n/a|    0     0    -2    17    -5     5  -.02    4    4 |   11674     -92     15    112
jpl   80|    0     2     0    30     2    -5   .33    8    8 |    2865     -71     17    127
mit  350|    1     0     6   -26   -36    14  -.11   14   13 |     -60    -104     51    308
ngs  227|    0     1     8   -24    16    -4   .04   10    8 |   -1417     345    699   2195
sio  300|    0     0    -2    18   -35    -3  -.03   15   14 |     ---     ---    ---    ---

Table 2.1899.1   GPS week: 1899   Day: 1   MJD: 57538.000                            

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    -2   -12    13   -23   .06   11   10 |   -1227     104     13    165
emr   80|    0    -1     1    32    25    10   .27    8    8 |    4031     175     13    117
esa  150|    0    -1    -4    -5    12    13  -.51    8    8 |   -1136     314      8    159
gfz  208|    0     0     2    -7   -16   -35   .11   11   11 |    -626     589     11    136
grg  116|    3    -2    -8     7     4    31   .06   18   17 |    -127      82     12    153
igr  n/a|    0     0     0     3    22    -5  -.05    4    4 |   11390     167     14     95
jpl   80|    0     0     0     1    13    16   .27    7    7 |    2619     210     15    124
mit  350|    0     0     5   -14   -67    15  -.18   13   12 |    -145     -59     43    345
ngs  225|    0     0     4   -18   -13   -30   .01   10    8 |   -1211      89    760   2062
sio  299|    0     1    -2     0   -31    31  -.12   15   13 |     ---     ---    ---    ---

Table 2.1899.2   GPS week: 1899   Day: 2   MJD: 57539.000                            

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  240|    0     0    -5     9    -9    -7   .10   11   11 |   -1298     166     12    161
emr   80|    0     0     0    21   -15     5   .32    8    8 |    4360     -10     12    119
esa  150|    0    -1    -5    10   -21    23  -.48    8    8 |     -18   -1727      8    166
gfz  209|    0     0     0     8   -21   -23   .11   11   11 |       1    -374     10    126
grg  115|    0    -2    -3   -10    60    37  -.14   12   12 |      50     -80     12    197
igr  n/a|    0     0    -1    -6    10   -20  -.05    4    4 |   11702     -22     16     96
jpl   80|    0     1     0     1    26   -19   .28    8    8 |    2987    -106     16    144
mit  350|    0    -1     4   -42     4     6  -.17   12   11 |     159    -241     46    400
ngs  226|    0     1    13   -16    -7   -33   .08   11    9 |   -1286     163    944   1900
sio  292|    0     0    -3    -1    -7    18  -.14   14   13 |     ---     ---    ---    ---

Table 2.1899.3   GPS week: 1899   Day: 3   MJD: 57540.000                            

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     4   -21    -5   .17   12   11 |   -1524     409     14    161
emr   80|   -1     2     2    25     2    30   .33    8    8 |    4298      67     12    102
esa  150|    0     0    -3   -21     5   -20  -.46    6    6 |    -389   -1009      7    154
gfz  207|    0     0     3   -21    -7   -35   .11   11   11 |    -415     203     11    152
grg  113|    2    -2   -12    -4    36    44  -.14   14   13 |    -264     368     14    191
igr  n/a|    0     0     0    23    26   -16  -.04    4    4 |   11597      90     15     70
jpl   80|    0     1     0     3    47    -7   .32    8    8 |    2822    -219     14    124
mit  350|    0    -2     5     9   -35    -1  -.12   12   11 |    -368     176     42    387
ngs  227|    0     0     6     3   -14    15   .13   10    8 |   -1400     245    727   1871
sio  297|    1     1    -3    18   -42    15  -.07   14   14 |     ---     ---    ---    ---

Table 2.1899.4   GPS week: 1899   Day: 4   MJD: 57541.000                            

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|   -1     0    -3    42   -16   -13   .09   12   11 |   -1326     192     13    166
emr   80|    0     4     2    17   -25     8   .31   10   10 |    4542    -965     15    131
esa  150|    0    -1    -5     1     5    10  -.46    7    7 |    -265    -487      8    163
gfz  208|    0    -1     2    10   -12   -11   .12   11   10 |     129    -566     10    141
grg  116|    2    -3    -2   -36    26    45  -.13   13   12 |      38    -136     13    210
igr  n/a|    0    -1    -2    21    16    -4  -.03    4    4 |   11837    -879     15     92
jpl   80|   -2     2     0    -7    32     8   .25    9    9 |    2710    -958     14    109
mit  350|    1    -2     6   -37   -13   -28  -.12   12   11 |     -94    -269     44    390
ngs  229|    0     0     4    14    17    16   .18   10    9 |   -1115     -97    791   1973
sio  302|    1     1    -2   -15   -47   -37  -.07   15   14 |     ---     ---    ---    ---

Table 2.1899.5   GPS week: 1899   Day: 5   MJD: 57542.000                            

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|    2    -2     0    39    16    -6   .22   13   12 |   -1258     -73     18    171
emr   80|   -3    13     5    18    23    31   .22   14   14 |    3236    -105     17    128
esa  150|    1    -1    -6    -3     9    27  -.45    8    7 |    -811     283      8    161
gfz  206|   -1    -2     0   -20   -14    -5   .09   11   10 |    -646     370     11    138
grg  113|    4    -4    -1   -37     4    51  -.05   17   17 |    -149     114     15    183
igr  n/a|    0    -1    -3     6    24    -1  -.02    5    5 |   10754     -34     17     64
jpl   80|   -7     2     0    14    26    -3   .23   11   11 |    1512      73     15    126
mit  350|    1    -4     2     2   -25   -11  -.05   13   12 |    -245     -98     56    374
ngs  227|    1     0     9   -23   -22   -16   .20   12   10 |   -1248     -59   1104   2019
sio  301|    3     0    -4     0   -37   -58   .02   16   17 |     ---     ---    ---    ---

Table 2.1899.6   GPS week: 1899   Day: 6   MJD: 57543.000                            

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    -6    15    12    24   .18   11   10 |   -1274     -18     13    175
emr   80|    3     4     4    46    25   -11   .23   14   14 |    3164    -479     23    131
esa  150|    0     0    -3    -6     1    -7  -.48    8    7 |    -839    1341      9    171
gfz  206|   -3     0     0    15   -15   -14   .09   11   11 |    -346     582     13    146
grg  116|    0    -2     7   -27    27    74  -.19   18   16 |      56     236     13    209
igr  n/a|   -1     0    -3    20     7    14  -.04    5    4 |   10638    -314     17     90
jpl   80|    2    -1    -1    38    -3    19   .31   11   11 |    1433    -222     16    115
mit  350|    0    -3     5   -50   -47   -21  -.07   13   11 |    -194    -138     51    359
ngs  232|   -1     0     4   -14    -6    34   .19   11    8 |   -1374     198    654   1775
sio  299|    0     1    -4   -45    14   -93   .01   14   13 |     ---     ---    ---    ---

       
       
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 3.1899.0   GPS week: 1899   Day: 0   MJD: 57537.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    5    4   10    7    3    8   11    7   12    2 |    20   24   15   24   18   18   26   18   23   22    19
   2  |    9   10    8   14   17    4    9   18   14   17    4 |    25   29   24   22   22   21   27   26   26   19    22
   3  |    8    9    5    9    9    3    8   11    4    9    2 |    42   43   37   45   34   39   45   39   43   41    40
  X4  |    3  ---  ---  ---  ---   67  ---  ---  ---  ---    0 |    45  ---  ---  ---  ---   31  ---  ---  ---  ---    44
   5  |    7    7    6    9   14    4    8   18   11   18    3 |    41   41   38   36   40   37   40   37   38   37    37
   6  |   10    7    6    9   10    3    8   11    5   14    3 |    20   24   14   19   23   17   24   16   18   26    18
   7  |    7   10    6   13   14    5   11   19   11   16    4 |    21   24   14   24   22   18   24   17   23   15    17
   8E |    8    6    7    9   16    3    8   12    8   15    3 |   141  141  137  141  143  140  112  139  136  143   139
   9  |   13   19    5    7   11    3    9    9    6    7    3 |    21   28   14   20   20   17   25   19   23   20    18
  10  |    6    8    4    5    8    3    8   10    9   15    2 |    43   44   39   41   36   40   44   43   44   38    40
  11  |    5    9   12   11   11    3    8   14    8   17    3 |    22   30   23   29   22   23   29   24   31   24    24
  12  |   10    9    7   15   17    5    8   17   13   21    4 |    24   23   17   23   21   17   22   15   23   18    17
  13  |   11    7    4    8   17    4    8   12   10   13    3 |    22   25   19   25   24   21   24   22   25   18    20
  14  |   10   12    6   11   14    4    7   15   11   16    3 |    22   19   12   21   18   14   18   18   21   15    15
  15  |    9    7    4   11   16    4    8   16   11   16    3 |    26   24   18   27   26   21   26   20   25   15    20
  16  |   15   10    7   17   15    5    9   24   11   19    4 |    29   24   17   21   27   17   24   17   19   13    17
  17E |   12   10    6   11   15    4   12   12   10   11    3 |    29   26   21   28   23   23   27   23   28   25    23
  18  |    9    5    8   19    8    3    5   15   14   18    4 |    23   23   23   23   22   20   24   27   29   22    22
  19E |   24   10    7   12   17    3    9   19    9   14    4 |    35   27   21   25   26   22   27   23   25   21    22
  20  |    7    7    8    8    8    4    7   14    8   15    3 |    26   27   26   27   24   23   25   30   29   20    24
  21  |    9    9    9   13   14    4    9   24   16   18    4 |    30   28   23   27   26   24   28   29   31   21    24
  22  |    7    5    7   12    8    3    6   13    9   13    3 |    28   24   24   30   21   23   25   23   29   22    23
  23  |   17   10    4   14   18    4    7   14   12   16    4 |    27   20   14   21   25   15   22   19   19   13    16
  24  |    7   15    5    9   13    4    8   10    8   19    3 |    21   23   15   20   23   19   23   22   23   22    18
  25  |    5   12    5    6   14    4    6    9    9   13    3 |    15   22   12   19   19   13   18   15   18   21    15
  26  |   10    9    5    8   12    4    8   12    6    9    3 |    26   26   16   22   26   20   27   17   23   19    20
  27E |    7    9    6    7   14    4    7   10    6   12    3 |    91   93   89   91   89   91   28   89   91   92    90
  28  |    6    7    4   12   14    4    9   10    8   20    3 |    20   23   17   24   20   16   21   18   19   18    17
  29E |   11   10    7   12   16    4   13   15   14   11    4 |    31   26   26   30   26   26   27   28   34   26    25
  30  |    7    7    5    7   13    3    8   15    9   10    3 |    25   24   17   23   23   19   25   21   24   21    20
  31  |   10    8    6    9   13    4    8   13   10   15    3 |    26   27   15   22   20   17   25   12   20   15    18
  32  |   11    7    6    8   13    3    8   11    8   10    3 |    34   34   31   29   37   30   34   30   30   33    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10    9    6   11   14    4    8   14   10   15      |T   32   32   26   31   30   27   29   28   31   28    28
 WRMS |   10    9    6   11   14    4    8   13    8   14      |NE  26   27   20   25   24   21   26   22   26   21    22
 MEDI |    9    9    6   10   14    4    8   13    9   15      |MD  26   26   19   24   23   21   25   22   25   21    20

Table 3.1899.1   GPS week: 1899   Day: 1   MJD: 57538.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   11    7    6    9   19    5    6    8    5   12    3 |    21   26   15   20   22   17   24   17   19   24    19
   2  |    8    7   10   12   24    4    8   17   15   21    4 |    25   26   22   19   33   19   25   20   20   21    21
   3  |    9    7    7    8   17    4    8    9    7    9    3 |    30   36   25   32   29   30   36   28   31   32    30
  X4  |    2  ---  ---  ---  ---   26  ---  ---  ---  ---    0 |    36  ---  ---  ---  ---   24  ---  ---  ---  ---    35
   5  |    8    6    8   10   15    4    7   15   10   21    3 |    22   25   21   25   28   20   25   19   22   27    21
   6  |    9    7    5    6   16    4    6   11    6   12    3 |    20   24   13   18   25   16   23   15   16   20    17
   7  |    9    8    7   12   15    4   10   16   11   17    4 |    20   23   15   25   22   19   24   18   21   18    18
   8E |   11    6    7   10   16    5    6   12   11   15    3 |   112  114  110  112  115  111   90  113  113  115   111
   9  |    9   12    8    6   19    3    7    7    7    8    3 |    21   26   14   22   27   17   24   16   19   17    18
  10  |    7    7    6    9   17    6    7    9    9   13    3 |    27   31   24   29   29   25   30   27   26   24    26
  11  |    9   11   16   11   19    5    6   12    8   14    4 |    21   26   19   25   24   21   25   22   24   23    21
  12  |   15    7    8   12   14    6    8   16   13   22    4 |    27   23   16   22   28   17   22   16   21   22    18
  13  |   11    7    7    9   19    3    7   13   10   13    3 |    23   23   16   23   28   19   23   19   23   17    19
  14  |   10    8    9   12   28    4    8   12    9   15    4 |    24   21   18   27   27   19   20   18   18   18    18
  15  |    8    7    6   11   19    3    7   13   11   14    3 |    24   23   18   28   29   20   23   17   22   17    20
  16  |   14   10    7   17   20    4    8   21   12   21    4 |    26   24   16   21   33   17   23   18   18   15    17
  17E |   13    8    7    9   15    3    9    9   11   11    3 |    30   27   23   30   31   25   27   24   29   27    25
  18  |   10    5   10   18   15    4    5   16   11   21    4 |    19   19   19   22   23   15   17   18   16   18    15
  19E |   20    8    7    8   17    3    6   14   10   15    4 |    33   27   21   26   35   24   27   23   27   26    24
  20  |    7    6   10    9   14    3    6   14    9   16    3 |    18   19   18   22   21   16   17   20   15   19    16
  21  |   10    6   10   15   20    6    7   24   15   18    4 |    28   27   22   24   32   22   26   22   20   19    22
  22  |    9    5    8   10   16    4    5   10    9   13    3 |    26   22   20   25   27   22   23   16   19   21    20
  23  |   15   12    7   13   24    5    7   13   12   16    4 |    26   22   17   21   31   18   23   17   17   13    17
  24  |   10    9    7    9   20    4    8   11   10    9    3 |    24   21   18   21   30   20   22   19   24   18    19
  25  |   11    8    7    6   10    5    6    7   10   18    3 |    15   21   10   19   24   14   17   14   17   23    15
  26  |   11    8    7   11   17    3    7    7    6   13    3 |    23   24   16   20   29   19   24   18   20   19    19
  27E |   10    6    5   10   22    3    7    8   12   11    3 |    82   84   79   80   86   81   28   81   83   83    81
  28  |    7    7    7   11   16    5    6   10    9   16    3 |    21   23   18   25   29   18   23   17   20   16    18
  29E |   10    9    8   15   22    5   10   15   12   12    4 |    30   26   24   33   33   26   25   26   30   27    26
  30  |   14    7    5    9   13    4    7   13    5    9    3 |    26   22   14   22   25   18   23   19   22   20    19
  31  |   12    7    9   10   16    5    5   12    9   15    3 |    27   27   18   25   28   21   23   14   20   16    20
  32  |   11    8    6    9   24    3    6   10    5    9    3 |    25   27   21   28   33   23   27   23   23   25    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11    8    8   11   18    4    7   13   10   15      |T   29   29   23   28   32   24   26   24   26   25    25
 WRMS |   10    8    8   11   17    4    7   12    8   13      |NE  23   24   17   23   27   19   23   18   20   20    20
 MEDI |   10    7    7   10   17    4    7   12   10   14      |MD  25   24   18   25   29   19   24   19   21   20    19

Table 3.1899.2   GPS week: 1899   Day: 2   MJD: 57539.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9    5    7    8    6    4    5    7    7   10    2 |    23   25   14   23   17   18   26   21   22   25    20
   2  |    8    8    9   12   11    4    9   16   12   18    4 |    22   27   21   19   23   20   28   26   23   23    22
   3  |    8    7   10    8    7    3    8   11    7    9    3 |    34   40   26   38   33   33   42   33   44   36    35
  X4  |    3  ---  ---  ---  ---   64  ---  ---  ---  ---    0 |    37  ---  ---  ---  ---   49  ---  ---  ---  ---    37
   5  |    9    6    9   10    9    4    6   14   11   18    3 |    32   32   27   26   24   25   31   25   27   32    27
   6  |    8    8    5    5    8    5    8   10    8    9    2 |    19   27   15   20   19   17   26   18   19   24    20
   7  |    9    9    7   12   10    4   11   14    9   14    3 |    21   25   15   23   22   20   26   21   26   23    20
   8E |   16   10    8   10   15    4   10   11   12   12    4 |    75   76   75   75   78   73   60   75   76   74    74
   9  |   12   11    7    7   10    4    9    8    8    9    3 |    20   22    8   20   20   14   24   18   23   19    17
  10  |    7    7    5   12    5    4    7    9    8   15    3 |    33   33   28   31   28   29   35   31   40   32    31
  11  |    8   10   16   12   11    5    7   11    6   11    3 |    21   26   18   23   22   19   26   24   27   20    21
  12  |   15   14    8   15   17    7    9   16   13   19    5 |    30   31   22   23   24   20   22   21   27   27    22
  13  |   11    8    7   10   13    4    8   13   11   14    3 |    23   22   16   21   25   18   24   23   22   17    19
  14  |   11    8    7   14   17    4    8   11   10   16    4 |    20   16   12   21   20   15   16   17   23   17    14
  15  |   11    9    7   11   16    3    7   13   13   14    4 |    27   23   17   22   27   18   24   20   22   19    19
  16  |   16   10    7   17   13    5    8   22   15   19    5 |    29   25   18   24   29   19   24   21   25   19    19
  17E |   13    7    6    8   10    5   10    8   10   10    3 |    34   31   27   32   25   29   32   28   29   33    29
  18  |   11    7   10   18    8    6    5   15   14   23    4 |    20   18   18   19   17   15   17   21   22   26    17
  19E |   19    9    8    8   12    5    7   12   10   14    4 |    34   31   25   29   26   25   31   26   27   28    27
  20  |    9    6   12   13    9    5    7   13   12   17    3 |    22   19   20   24   21   18   19   25   24   23    20
  21  |   10    9   10   14   13    5    9   26   14   22    5 |    28   27   22   23   28   22   29   25   26   24    23
  22  |    7    6   11   11    7    3    5   11   10   12    3 |    24   23   20   28   24   23   24   19   32   21    22
  23  |   19   10    8   14   14    3    7   12   12   18    4 |    27   20   12   19   24   15   23   16   22   15    16
  24  |   14   11    7    9   12    5   10    8    8    7    3 |    26   27   17   19   23   18   24   22   26   21    21
  25  |    6    8    7    8   12    4    7    8   12    8    3 |    18   22   17   22   21   17   19   17   22   21    18
  26  |    8    7    5    9    7    4    7    6    8   11    2 |    20   22   16   20   24   18   23   20   24   24    19
  27E |   10    7    7    9   16    4    8    8   12   10    3 |    58   60   57   60   55   57   23   57   63   55    57
  28  |    7    6    7   10   10    4    7    9    9   19    3 |    22   25   19   26   23   19   23   20   24   23    20
  29E |   12   12    8   18   18    5   13   14   13   12    4 |    27   24   22   30   25   23   25   26   31   26    24
  30  |   10    8    5    7    9    4    7    8    6    8    2 |    27   25   18   25   25   21   25   22   28   26    23
  31  |   11    6    6   10   10    5    5   10   11   10    3 |    23   24   16   23   26   18   21   16   25   18    19
  32  |   11    7    7    9   17    4    8    8    8   10    3 |    32   33   25   30   33   27   31   27   27   30    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11    8    8   11   12    4    8   12   11   14      |T   28   28   22   27   26   24   26   25   28   26    25
 WRMS |   11    8    8   11   12    4    8   11    9   13      |NE  25   25   18   23   23   20   25   21   25   23    21
 MEDI |   10    8    7   10   11    4    8   11   10   12      |MD  26   25   18   23   24   19   24   22   26   24    21

Table 3.1899.3   GPS week: 1899   Day: 3   MJD: 57540.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   11    8    5    8   11    3    6    7    7    8    2 |    22   27   18   23   24   19   25   20   24   24    21
   2  |   11    7    8   11   17    4    9   15   13   18    4 |    26   28   23   22   25   22   25   24   24   17    22
   3  |    7    8    5    7   11    4    8    6    5    9    2 |    37   43   33   40   32   37   43   37   39   37    37
  X4  |    3  ---  ---  ---  ---   63  ---  ---  ---  ---    0 |    65  ---  ---  ---  ---   28  ---  ---  ---  ---    64
   5  |    9    6    7    9   13    4    8   13   11   19    3 |    38   34   32   32   37   33   36   30   33   35    32
   6  |    9    6    4    6    7    4    6    9    7    9    2 |    20   26   18   22   25   19   24   18   22   23    20
   7  |   11   10    6   12   12    5   10   12    9   15    3 |    24   24   15   23   20   19   24   17   23   18    18
   8E |   17   12    6    9   14    5   10   10   12   12    4 |   132  134  130  132  135  131  112  134  133  133   132
   9  |   12    8    5    6   11    4   10    8    8    9    3 |    22   24   13   21   24   17   24   20   22   18    18
  10  |    7    7    5   10   10    4    6    9    7   13    2 |    38   39   35   40   32   36   38   37   36   32    35
  11  |    8   13   14   11   12    4    8   10    8   11    4 |    21   29   21   26   26   21   28   25   27   20    23
  12  |   14    9    5   16   16    5   10   15   12   21    4 |    29   27   18   26   25   20   24   17   25   21    20
  13  |    9   10    5   10   15    3    9   13   12   13    3 |    24   23   18   24   24   20   25   22   23   16    20
  14  |   13    8    5   12   17    3    8   12   10   17    3 |    24   23   20   23   24   19   21   21   22   17    19
  15  |    8    8    4   13   18    4    8   13   10   15    3 |    27   26   20   26   30   22   26   21   24   14    21
  16  |   15   11    7   18   15    5    8   21   13   19    4 |    29   25   19   24   29   19   23   20   21   16    19
  17E |   16    7    5    8   16    3    7    8    8   11    3 |    34   30   29   31   36   29   30   27   34   30    29
  18  |    9    7   10   22   11    4    5   14    9   22    4 |    21   23   20   25   22   20   21   23   21   22    19
  19E |   21    7    6    7   12    4    7   11    9   12    3 |    30   25   22   25   28   23   24   26   28   22    22
  20  |    8    6    8    9   12    3    8    9    7   14    3 |    25   23   21   25   20   22   21   25   25   19    21
  21  |   11    8    8   14   17    4    8   26   14   20    5 |    28   30   22   29   30   23   28   27   27   20    24
  22  |    7    5    7    9   11    4    5   10    8   14    3 |    25   27   22   27   23   22   25   21   25   21    22
  23  |   17   11    5   13   17    4    8   12   13   18    4 |    27   22   15   21   28   17   22   20   23   12    17
  24  |   10    9    4    9   14    4    9   10    9    8    3 |    26   26   18   23   25   20   24   25   24   22    21
  25  |   11    9    4    7   14    2   10    7    9   14    3 |    20   23   13   22   25   16   22   17   20   20    17
  26  |    9    7    5    8   12    4    7    8    8    9    2 |    27   27   18   24   27   20   26   21   24   22    22
  27E |   14    7    5    9   15    3    8    9   10   10    3 |    84   88   83   88   87   86   32   85   91   86    85
  28  |   12    9    6   11   14    4    7   11   11   20    3 |    25   26   18   21   24   17   23   20   19   19    18
  29E |    8    9    5   12   20    5   13   14   12   11    4 |    27   26   22   30   28   24   24   26   30   23    24
  30  |   11    9    4    8   13    4    8    9    7    8    3 |    28   24   16   22   22   21   24   20   27   21    21
  31  |    7    7    7    9   17    3    6   10   11   14    3 |    24   28   17   25   26   20   25   17   22   17    20
  32  |   11    9    6    9   17    4    8    8    7   10    3 |    31   35   28   27   38   28   33   28   26   31    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12    8    6   11   14    4    8   12   10   14      |T   33   32   26   31   32   27   29   28   31   27    29
 WRMS |   11    8    6   11   13    4    8   11    8   14      |NE  27   27   20   25   26   22   26   22   24   21    23
 MEDI |   11    8    5    9   14    4    8   10    9   13      |MD  27   26   20   25   26   21   25   22   24   21    21

Table 3.1899.4   GPS week: 1899   Day: 4   MJD: 57541.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    7    6    9    9    4    7   10    8   10    2 |    23   24   14   25   20   19   24   20   25   25    19
   2  |   10   10    8   12   15    5   10   13   13   18    4 |    27   25   21   24   25   21   26   25   25   18    21
   3  |    9    9    7    9    9    4    8    7    7   13    3 |    26   37   20   28   27   26   36   28   28   32    27
  X4  |    3  ---  ---  ---  ---   39  ---  ---  ---  ---    0 |    40  ---  ---  ---  ---   32  ---  ---  ---  ---    39
   5  |   10    9    8    8   12    4    8   12   12   18    3 |    28   31   27   27   29   25   31   26   31   32    27
   6  |    8    9    6    6    8    3    6    8    8   13    2 |    20   24   15   19   19   16   24   17   20   23    17
   7  |   11   10    5   14   13    4    9   13    9   16    4 |    25   27   13   25   21   19   24   17   26   21    19
   8E |   29   11    6   11   14    5   11   13   13   16    5 |   137  137  136  140  140  137   98  141  135  144   137
   9  |   13   10    6    6   11    5    9    8    7    9    3 |    20   24   12   18   21   15   24   18   19   17    17
  10  |    9    8    4   11    9    5    9   12    9   13    3 |    32   33   27   35   25   29   33   32   33   30    29
  11  |    7   13   17   10   12    4    9   11    8   12    4 |    19   28   18   25   25   19   27   23   24   18    20
  12  |   11   10    6   15   13    4    9   14   12   22    4 |    25   24   15   21   20   16   22   11   21   15    15
  13  |   10    9    5   11   14    4   12   13   11   17    4 |    25   23   16   24   26   18   24   22   23   15    18
  14  |    9   11    9   11   14    4    8   13   10   18    4 |    22   21   15   19   18   14   18   18   19   15    15
  15  |    9    9    7   11   15    3   10   13   10   16    3 |    25   24   16   23   25   19   25   20   23   12    18
  16  |   19   10    7   19   15    5    9   23   15   18    5 |    33   26   18   22   26   18   24   17   23   12    17
  17E |    9    8    6    8   17    4    9   10    9   11    3 |    21   21   17   24   21   19   22   19   28   21    18
  18  |    9    7    9   20   10    4    9   13   11   19    4 |    20   18   17   19   18   13   20   18   19   18    14
  19E |   14   12    7    7   12    5    7   12   11   12    3 |    31   29   26   29   25   27   30   31   33   27    26
  20  |    5    8   10    9   10    3    9   10    9   14    3 |    20   17   16   20   17   16   15   22   21   18    16
  21  |    9   10    9   14   13    3   10   26   13   19    5 |    28   27   21   26   24   21   28   24   25   14    21
  22  |    8    6   11   10    7    4    5   11    9   12    3 |    21   22   17   20   19   16   21   16   23   20    17
  23  |   20   11    7   14   15    4    7   14   11   19    4 |    28   20   14   18   24   14   21   17   19    9    14
  24  |    6   11    6   11   11    4   11   13    7    9    3 |    21   25   16   20   22   16   23   21   21   20    18
  25  |    7   10    5    7   12    4   11    8   10   13    3 |    16   21    9   21   17   13   22   13   19   12    13
  26  |   10    8    5    7   13    4    8    9    9    8    3 |    25   28   17   23   25   19   25   20   25   19    20
  27E |   15   10    6   11   14    3   11    7   12   11    3 |    98   96   93   99  104   95   32   96   95   98    96
  28  |   13    9    7   11   11    5    7   12   10   22    4 |    23   25   17   22   21   16   22   18   22   16    17
  29E |   10   11    6   12   17    4   12   10   11   10    4 |    26   22   17   27   24   21   22   19   27   19    19
  30  |   10    8    6    9   13    4   11   10    7    9    3 |    24   24   14   20   23   18   23   19   25   22    19
  31  |   10    9    6    9   17    6    7   12   10   13    3 |    24   27   14   23   23   17   22   15   22   17    18
  32  |    8   10    7    6   15    4    9    9    9   12    3 |    31   35   28   27   33   29   33   26   25   32    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   10    7   11   13    4    9   12   10   15      |T   30   31   23   29   29   25   27   26   29   26    25
 WRMS |   11   10    7   10   12    4    9   11    9   14      |NE  24   25   17   22   22   19   24   20   23   19    19
 MEDI |    9   10    6   11   13    4    9   12   10   13      |MD  25   25   17   23   24   19   24   20   24   19    18

Table 3.1899.5   GPS week: 1899   Day: 5   MJD: 57542.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   13   14    7    8   11    4    7    8    8   13    3 |    25   30   14   26   19   20   28   22   24   23    20
   2  |    7   11   10   10   19    4    9   13   15   19    4 |    22   30   20   22   25   18   24   21   24   17    20
   3  |    9   13    7    9   11    4   12    6    7   12    3 |    29   38   17   23   25   22   37   25   27   27    25
  X4  |    4  ---  ---  ---  ---   48  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---   30  ---  ---  ---  ---    35
   5  |    8   10    8    8   13    4   10   13   14   19    4 |    29   27   26   25   25   23   26   22   29   33    24
   6  |   13   11    6    4   10    5    8   10   10    9    3 |    17   28   11   18   20   15   24   16   20   20    16
   7  |   15   16    5   13   12    6   10   13   11   17    4 |    25   30   14   22   20   18   27   15   26   18    18
  X8E |   22   26    8   12   19    8  ---   12   24   18    6 |   155  157  156  162  159  161  ---  156  165  159   158
   9  |    8   15    6    8   17    4    9    7    6    9    3 |    20   27   13   21   23   16   24   17   20   16    16
  10  |   13   13    7   10   12    5   12   12   10   14    4 |    29   29   20   23   21   21   29   23   30   21    22
  11  |    6   20   16   10   17    5    9   10    9   18    4 |    22   36   19   23   26   19   30   23   23   23    21
  12  |   14   14    8   17   18    6   12   15   14   21    5 |    23   29   15   23   24   16   23   10   23   19    15
  13  |   13   13    7    9   15    4    9   13   12   15    4 |    22   23   12   18   22   14   21   17   17   13    14
  14  |   10   18    8   14   24    4   10   12    8   20    4 |    22   26   17   26   24   16   21   17   18   18    15
  15  |   11   11    6   13   20    5    9   13   12   14    4 |    25   23   14   23   27   18   23   19   20   13    17
  16  |   14   19    7   17   23    6   15   23   14   20    5 |    29   34   18   22   34   18   27   17   24   13    17
  17E |   12   11    5    7   19    4   11   13   10   13    4 |    34   33   27   35   28   29   32   27   37   32    29
  18  |   12   12    9   20   14    5    9   14   13   17    4 |    21   21   16   18   18   14   19   17   17   17    13
  19E |   12   13    8    9   17    5   10   21   14   10    4 |    23   29   18   23   19   20   26   23   24   22    19
  20  |   14   13    9    9   12    5    9    9   13   12    4 |    26   16   14   16   18   15   14   17   23   15    14
  21  |   15   15   10   14   17    6   11   26   13   19    5 |    26   28   19   23   27   19   26   26   23   17    20
  22  |   10   10    8    9   14    4    7   11    8   16    3 |    22   25   15   15   23   14   21   15   20   20    15
  23  |   15   14    8   10   22    6   10   12   12   20    4 |    24   24   15   19   29   15   23   17   18   12    15
  24  |    9   21    5    8   25    6   10   10    9   10    4 |    23   32   14   21   31   18   21   23   22   24    19
  25  |   12   10    5    9   16    4    9    6    9   15    3 |    14   22   10   20   24   12   19   11   17   16    12
  26  |   10   13    6    7   18    5    9    8    7   14    3 |    24   32   15   21   30   17   26   17   26   19    19
  27E |   21   21   11   16   20   11   23    8   30   20    6 |   161  156  153  158  156  156   88  157  161  161   156
  28  |   14   13    7   10   18    5   10   16   11   21    4 |    20   26   15   18   25   14   24   19   22   14    15
  29E |   13   12    7   12   13    4   15    8   10    7    4 |    29   27   19   29   20   21   21   21   27   21    21
  30  |   13   11    5   10   16    5   10   13   10    9    3 |    26   27   12   20   24   16   24   17   27   22    18
  31  |   19   16    7   10   18    6    8   11    9   15    4 |    32   31   14   24   26   17   24   13   21   15    18
  32  |    9   16    5   11   20    4    9    8    7   12    3 |    26   34   21   30   34   24   30   22   20   29    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   14    8   11   17    5   11   13   12   16      |T   33   36   25   31   33   27   26   27   32   28    27
 WRMS |   12   14    7   10   17    5   11   12   10   17      |NE  24   28   15   21   24   17   24   18   22   19    18
 MEDI |   12   13    7   10   17    5   10   12   10   15      |MD  25   29   15   23   25   18   24   19   23   19    18

Table 3.1899.6   GPS week: 1899   Day: 6   MJD: 57543.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   12   15    8    7   11    4    7   10    7   11    3 |    27   30   18   25   21   21   28   24   28   31    22
   2  |    8   14    7   10   15    3    8   12    9   17    3 |    26   28   23   25   22   23   28   27   26   18    22
   3  |   10   10    5   10    9    3    9    8    7   10    3 |    44   50   35   41   39   39   47   40   44   44    41
  X4  |    5  ---  ---  ---  ---   57  ---  ---  ---  ---    0 |    45  ---  ---  ---  ---   29  ---  ---  ---  ---    44
   5  |    7   19    8    8    9    3   10   12   12   17    4 |    38   44   34   37   36   35   39   35   42   40    36
   6  |   11   10    4    3    8    3    7   11    6   11    2 |    23   26   17   22   22   20   26   19   23   27    20
   7  |    8   12    6   11   15    4   10   12    9   13    3 |    23   26   16   25   26   19   24   16   25   20    19
   8E |   31   25   15   12   58   14   29   18   38   19   10 |   266  263  261  264  264  259  295  267  263  266   263
   9  |    9   14    8    6   16    3   10   10    8    9    3 |    22   28   16   23   28   21   28   23   27   23    21
  10  |    9   10    5   14   10    4    8    9    9   13    3 |    45   44   38   45   37   40   44   42   48   39    41
  11  |    8   24   16   11   14    5    9    9    8   10    4 |    24   39   23   27   28   23   30   24   27   22    23
  12  |   10   16    7   17   19    5   12   15   10   19    4 |    26   28   17   24   24   17   24   14   23   19    18
  13  |   10   11    6    9   14    5   10   12    8   16    3 |    23   26   15   22   28   19   26   21   23   13    19
 X14  |   10   12    8  ---   18    4    9   14   11   18    4 |    26   19   21  ---   24   18   20   20   22   19    18
  15  |   10   10    7   10   13    3   11   15   10   16    4 |    27   25   17   26   27   22   26   23   23   16    21
  16  |   11   19    7   16   22    5   13   24   13   18    5 |    27   32   17   22   28   18   24   18   22   14    17
  17E |    7   11    5    7   11    5   10    9    6   10    3 |    31   32   27   33   30   30   33   28   33   35    29
  18  |   11    8    8   21   11    4    8   15   10   18    4 |    27   22   21   23   23   18   22   26   25   27    21
  19E |   12   11    7    7   17    4    7   19    8    8    3 |    24   25   21   24   25   21   27   30   30   22    22
  20  |    8   10    9   10   11    3   10   12    7   15    3 |    27   23   22   26   22   21   20   27   24   20    21
  21  |   12   14    8   15   17    4   11   25   13   17    5 |    26   33   23   31   27   24   30   30   29   19    25
  22  |    7    9    7   10   11    4    7   13   10   12    3 |    29   28   21   27   26   22   24   22   29   23    22
  23  |   16   13    7   11   18    4    9   12    9   18    4 |    28   26   18   23   30   20   26   21   24   12    19
  24  |    7   14    5   10   23    3    8   14    7   11    3 |    23   21   14   19   31   18   22   25   23   25    19
  25  |   10   12    6    9   15    3    9    6    5   19    3 |    17   21   13   22   21   15   19   15   19   25    15
  26  |   10    9    6    7   19    3    8   10    7    8    3 |    26   26   17   22   29   19   25   19   24   19    20
 X27E |   10   17    6    8   25    6  ---    5   12   10    4 |   110  109  108  111  105  110  ---  105  113  107   108
  28  |    6   11    8    9   18    5    8   15   10   22    4 |    21   27   18   24   24   18   24   22   24   20    18
  29E |    9   15    7   12   11    3   16    9    8   11    3 |    29   24   21   29   24   22   22   22   28   24    22
  30  |    6    9    5    6   18    3    8   11    8    8    3 |    27   26   18   24   30   19   25   19   28   25    22
  31  |   14   10    5    9   20    5    7   10   10   12    3 |    28   28   15   25   28   18   23   14   23   18    19
  32  |    9   13    6   12   19    4    8   10    9   11    3 |    35   39   34   35   44   35   39   31   32   40    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   14    8   11   18    5   11   13   11   14      |T   38   39   31   37   37   32   36   34   37   34    33
 WRMS |   10   14    7   11   16    4   11   11    8   13      |NE  28   29   20   26   27   22   27   23   27   23    23
 MEDI |   10   12    7   10   15    4    9   12    9   13      |MD  27   28   21   25   28   21   26   23   26   23    21



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 4.1899   GPS week: 1899   MJD: 57537.0-57543.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2984 |U    6     8    18 |U    6     8    22 |U    9    11    20 |
emr | emr 2976 |     8    10    20 |U    8     8    22 |    12    13    23 |
esa | esa 2976 |     7     8    17 |U    7     8    26 |    10    12    22 |
gfz | gfz 2962 |U    6     8    19 |U    7     7    23 |U   10    12    22 |
grg | grg 2976 |U    7     9    20 |U    7     8    26 |    11    13    24 |
igr | igr 2970 |     6     8    18 |     7     7    21 |    10    11    22 |
igs | igs 2976 |     6     8    18 |     6     7    22 |    10    12    22 |
jpl | jpl 2948 |     7     9    19 |U    7     8    23 |    11    12    24 |
mit | mit 2976 |     6     9    21 |U    8     8    26 |U   10    12    20 |



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

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

Table 5.1899.0   GPS week: 1899   Day: 0   MJD: 57537.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     8    11 |     9     7    20 |    10     9    24 |
emr | emr 2976 |     7    14    16 |    10     7    22 |    12    10    25 |
esa | esa 2976 |     6     9    12 |    10     8    22 |    10    11    26 |
gfz | gfz 2976 |     5    10    14 |    10     8    22 |    11    15    27 |
grg | grg 2976 |     5     8    12 |    10     8    18 |    13    12    31 |
igr | igr 2976 |     5    10    12 |    10     7    21 |    10    10    24 |
igs | igs 2976 |     5    10    11 |    10     7    20 |    11    11    26 |
jpl | jpl 2976 |     6    11    14 |     9     8    24 |    13    11    27 |
mit | mit 2976 |     5    10    13 |    10     8    20 |    11    12    25 |

Table 5.1899.1   GPS week: 1899   Day: 1   MJD: 57538.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6    10    16 |     5     9    20 |     8    12    15 |
emr | emr 2976 |     8    13    17 |     6     9    20 |    11    12    19 |
esa | esa 2976 |     6    10    14 |     5    10    21 |     8    13    18 |
gfz | gfz 2976 |     6     9    14 |     5    10    24 |     9    12    19 |
grg | grg 2976 |     7    12    15 |     5    11    27 |    11    19    21 |
igr | igr 2976 |     6    10    14 |     5     9    21 |     8    12    17 |
igs | igs 2976 |     6    10    14 |     5     9    21 |     9    13    17 |
jpl | jpl 2976 |     7    11    16 |     5     8    23 |    11    13    18 |
mit | mit 2976 |     7    10    18 |     6    11    21 |    10    15    19 |

Table 5.1899.2   GPS week: 1899   Day: 2   MJD: 57539.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     4    11 |     5     7    22 |     7     9    15 |
emr | emr 2976 |     6     4    16 |     6     8    22 |    10    11    17 |
esa | esa 2976 |     6     4    12 |     5     8    24 |     8    10    16 |
gfz | gfz 2976 |     5     4    12 |     5     7    24 |     8    10    15 |
grg | grg 2976 |     6     4    16 |     5    10    29 |     9    11    20 |
igr | igr 2976 |     5     3    12 |     5     7    21 |     7    10    15 |
igs | igs 2976 |     5     3    12 |     5     7    22 |     8    10    15 |
jpl | jpl 2976 |     5     6    16 |     6     8    23 |    10    13    18 |
mit | mit 2976 |     5     4    13 |     7     7    27 |     7    11    15 |

Table 5.1899.3   GPS week: 1899   Day: 3   MJD: 57540.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3035 |     7     5    17 |     7    10    21 |     7    13    17 |
emr | emr 2976 |     8     8    19 |     7     9    23 |    11    15    24 |
esa | esa 2976 |     7     6    16 |     8     9    26 |     9    14    24 |
gfz | gfz 2976 |     6     6    18 |     8     9    23 |     9    13    20 |
grg | grg 2976 |     7     6    21 |     7     9    24 |     9    13    20 |
igr | igr 2976 |     6     6    17 |     7     9    21 |     8    14    21 |
igs | igs 2976 |     6     6    17 |     7     9    23 |     9    14    22 |
jpl | jpl 2976 |     7     8    17 |     7     9    26 |    10    12    24 |
mit | mit 2976 |     6     5    19 |    10     9    28 |     8    12    19 |

Table 5.1899.4   GPS week: 1899   Day: 4   MJD: 57541.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     8    17 |     5     6    18 |    12    11    23 |
emr | emr 2976 |     6     9    19 |     7     6    20 |    15    16    28 |
esa | esa 2976 |     7     8    16 |     5     5    19 |    13    13    26 |
gfz | gfz 2976 |     6     8    19 |     5     5    20 |    13    11    26 |
grg | grg 2976 |     6     9    22 |     6     6    23 |    14    13    28 |
igr | igr 2976 |     6     7    17 |     5     5    18 |    13    12    26 |
igs | igs 2976 |     6     8    18 |     5     5    19 |    13    13    26 |
jpl | jpl 2976 |     6     6    16 |     5     6    21 |    14    16    31 |
mit | mit 2976 |     7     9    24 |     7     6    25 |    12     9    22 |

Table 5.1899.5   GPS week: 1899   Day: 5   MJD: 57542.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     9    18 |     8     8    31 |    11    10    24 |
emr | emr 2976 |    10    12    22 |     9     7    28 |    13    15    24 |
esa | esa 2976 |     5     9    18 |     8    13    43 |    11    10    25 |
gfz | gfz 2976 |     6    10    20 |     9     7    25 |    11     9    26 |
grg | grg 2976 |     6    10    20 |     8     8    32 |    11    12    27 |
igr | igr 2939 |     6    10    20 |     9     7    25 |    11    10    25 |
igs | igs 2976 |     6     9    19 |     8     6    25 |    11    10    26 |
jpl | jpl 2880 |     7     9    18 |     8     7    26 |    11    11    28 |
mit | mit 2976 |     5    11    24 |    10     8    33 |    10    14    20 |

Table 5.1899.6   GPS week: 1899   Day: 6   MJD: 57543.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    10    11    32 |     6     7    24 |     9    11    21 |
emr | emr 2976 |    11    13    34 |    11    10    22 |    12    11    25 |
esa | esa 2976 |    10    13    34 |     5     6    23 |    10    12    22 |
gfz | gfz 2880 |    10    13    35 |     6     7    22 |    10    12    21 |
grg | grg 2976 |    11    11    35 |     8     7    29 |    10    14    24 |
igr | igr 2976 |    10    13    34 |     6     6    22 |    10    12    22 |
igs | igs 2976 |    10    12    33 |     5     6    23 |    10    12    22 |
jpl | jpl 2880 |    11    12    35 |     6     8    21 |    10    11    24 |
mit | mit 2976 |    10    12    35 |     7     9    25 |    10    13    23 |


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 6.1899   GPS week: 1899   MJD: 57537.500-57543.500

                                                         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 |     -11       3       9      41      3 |      12     21
            |      23      20     110     161      4 |       2
emr   uuxux |      27     -39     101     188    -14 |      28     36
            |      29      50     235      96     14 |       5
esa   uuuuu |       1      -5      64      22      1 |       1     18
            |      11      17      73      54      4 |       3
gfz   uuuuu |       1      12     -51     -65      1 |      -2     19
            |      13      31     137      75      3 |       3
grg   uuuuu |     -60      39       0    -161      2 |      -2     17
            |      15      15      48      73      7 |       3
igr   xxxxx |     -23      -7      26     -25      3 |      -8     19
            |      13      16      59      26      4 |       2
irf   xxxxx |      11      -6     -50     -83      7 |      -7     18
            |      11      11      64      41      4 |       2
jpl   uuuuu |     -29     -15      91     -18    -14 |       7     22
            |      15      30      79      60     15 |       7
mit   uuuuu |      10       9    -131    -182      0 |      12     21
            |      15      14     135      73      7 |       4
ngs   uuxuu |      19       9      19      13      3 |       2     18
            |      32      53     318      61      5 |       3
sio   uuuux |      41      10    -121      72     -2 |      52     54
            |      16      23      58      64      5 |       4


Table 7.1899.0   GPS week: 1899   Day: 0   MJD: 57537.500

                                                         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 |     -34      12       0     -46      0 |      14     22
emr   uuxux |      24      10    -199     121      0 |      32     38
esa   uuuuu |      17      -7     -37      59     -3 |       4     18
gfz   uuuuu |      20     -39      97      51      5 |       1     18
grg   uuuuu |     -58      22      12    -155      5 |       0     17
igr   xxxxx |      -1     -15      41      24      3 |      -7     18
irf   xxxxx |      28     -20    -104     -49      1 |      -6     18
jpl   uuuuu |      -1     -53     168     -24      2 |      15     21
mit   uuuuu |      30     -10    -235    -126     -9 |      17     24
ngs   uuxuu |     -50      85    -309     -93     -4 |       6     18
sio   uuuux |      54     -19    -160      94    -10 |      58     60

Table 7.1899.1   GPS week: 1899   Day: 1   MJD: 57538.500

                                                         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 |     -34      13      71     -42     -1 |      16     23
emr   uuxux |      -6     -54      47      72     -9 |      34     40
esa   uuuuu |      -2      -5      58     -25     -1 |       5     18
gfz   uuuuu |      10       4       0     -20      2 |       3     18
grg   uuuuu |     -73      32     -80    -157      8 |       2     18
igr   xxxxx |     -22       9     -76     -15      3 |      -5     17
irf   xxxxx |      12      -1    -119     -50      2 |      -4     17
jpl   uuuuu |     -25      -4      80       7    -10 |      15     21
mit   uuuuu |      29       6    -274    -107     -5 |      18     24
ngs   uuxuu |      37      54    -324      34      2 |       7     19
sio   uuuux |      67      -2     -70     149      2 |      57     59

Table 7.1899.2   GPS week: 1899   Day: 2   MJD: 57539.500

                                                         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 |     -15      -2      23     -98      4 |      12     20
emr   uuxux |      50     -26      16     138     -9 |      30     37
esa   uuuuu |      12     -35     134     -49      1 |       2     17
gfz   uuuuu |      -1      -9      97     -78     -1 |       0     18
grg   uuuuu |     -84      37      21     -81      8 |      -1     16
igr   xxxxx |     -20      15     -16     -33      2 |      -8     18
irf   xxxxx |      12      12    -103     -54      9 |      -7     18
jpl   uuuuu |     -40       9     -25      38    -17 |      11     19
mit   uuuuu |      -2      17    -284    -128      2 |      13     21
ngs   uuxuu |      28      34    -202      81      1 |       3     17
sio   uuuux |      33      12     -57     106      1 |      53     55

Table 7.1899.3   GPS week: 1899   Day: 3   MJD: 57540.500

                                                         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      17     -52     -33     10 |      10     21
emr   uuxux |      20     -41     120     186     -6 |      27     37
esa   uuuuu |      -4       7      55     -31      2 |      -1     20
gfz   uuuuu |      -8      23     -17    -105     -2 |      -3     21
grg   uuuuu |     -54      30     -33    -117     -4 |      -3     18
igr   xxxxx |     -34     -28       5     -26      2 |     -10     22
irf   xxxxx |       6     -13     -37     -80      6 |      -8     20
jpl   uuuuu |     -27       3      46      62    -10 |       6     24
mit   uuuuu |       1     -11     -69    -171     -5 |      10     22
ngs   uuxuu |      38      -7     -73       4      7 |       0     20
sio   uuuux |      19       0     -50     135     -6 |      50     54

Table 7.1899.4   GPS week: 1899   Day: 4   MJD: 57541.500

                                                         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 |      -7     -38     207      49      1 |      11     22
emr   uuxux |      67      13     -97     216    -10 |      26     36
esa   uuuuu |     -11      -1      49      57     10 |      -1     18
gfz   uuuuu |     -21      19    -162     -95      1 |      -5     19
grg   uuuuu |     -59      42      16    -197      3 |      -5     16
igr   xxxxx |     -36     -22      92     -58      5 |     -11     21
irf   xxxxx |      16     -16     -20    -111      9 |      -9     20
jpl   uuuuu |     -33      16      46     -30    -29 |       4     22
mit   uuuuu |      14      19     -84    -252     -1 |       8     19
ngs   uuxuu |      14     -68     313      78      6 |      -1     18
sio   uuuux |      43      13    -177      20     -2 |      48     51

Table 7.1899.5   GPS week: 1899   Day: 5   MJD: 57542.500

                                                         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 |      31      -5     -43     381      4 |      13     23
emr   uuxux |      42     -35     419     211    -43 |      27     36
esa   uuuuu |     -12     -13     180      62     -1 |       2     19
gfz   uuuuu |       2      56    -276     -25      4 |      -3     19
grg   uuuuu |     -58      68      -8    -303      2 |      -2     16
igr   xxxxx |     -36      -3      79     -27      9 |      -8     19
irf   xxxxx |      -9       4     -23    -160     10 |      -5     18
jpl   uuuuu |     -47     -21     119    -113    -38 |       2     22
mit   uuuuu |     -10      19     -46    -305      9 |      10     20
ngs   uuxuu |      36     -39     396      14     10 |       2     18
sio   uuuux |      30      16    -166     -12     -2 |      50     53

Table 7.1899.6   GPS week: 1899   Day: 6   MJD: 57543.500

                                                         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      23    -140      77      2 |      10     19
emr   uuxux |     -11    -136     403     371    -19 |      18     31
esa   uuuuu |       7      17      10      79      0 |      -2     17
gfz   uuuuu |       1      31     -93    -183      0 |      -6     17
grg   uuuuu |     -37      43      73    -117    -10 |      -5     15
igr   xxxxx |     -14      -5      59     -42     -2 |     -10     19
irf   xxxxx |      14      -8      60     -75     11 |      -8     17
jpl   uuuuu |     -34     -57     207     -68      5 |      -6     24
mit   uuuuu |       8      22      74    -187      7 |       7     16
ngs   uuxuu |      32       8     331     -27      0 |      -1     16
sio   uuuux |      39      54    -165      13      4 |      46     48



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