[IGSREPORT-21619] Wk 1727 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Mar 1 07:18:26 PST 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1727   (Feb 10, 2013 - Feb 16, 2013)

Contacts: J. Griffiths (jake.griffiths at noaa.gov)
          K. Choi (kevin.choi at noaa.gov)


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

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

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

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

igs1727[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1727[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1727[0-6].cls  IGS GPS clock combination summary report.
igs17277.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17277.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   | 9 9 HNPT HNPT
                0  |  ESA   | 9 9
                0  |  GFZ   | 30 BOGT YAKT
                0  |  GRG   | CAGZ MAW1 CAGZ ISPA MAW1
                0  |  MIT   | 1 3 5 1 3 5 YELL MDVJ YELL
                1  |  COD   | 9 9 WTZR
                1  |  ESA   | 9 9
                1  |  GFZ   | BOGT CHPI MDVJ
                1  |  GRG   | NICO ISPA KIT3 LHAZ NICO
                1  |  MIT   | 8 16 22 8 16 22 MDVJ
                2  |  ALL   | 30
                2  |  COD   | HERT HNPT HERT HNPT
                2  |  EMR   | MCM4 MCM4
                2  |  ESA   | 9 30 SOFI SOFI
                2  |  GFZ   | BOGT LHAZ MCM4 SOFI
                2  |  GRG   | 9 9 MATE ADIS CEDU DGAR MATE
                2  |  MIT   | 9 22 9 22 MDVJ MAG0 MDVJ
                3  |  COD   | 9 KOUC WROC KOUC WROC
                3  |  ESA   | 9 ANKR MATE
                3  |  GFZ   | BOGT LHAZ MATE
                3  |  GRG   | ADIS DAV1 OHI2 SCUB
                3  |  JPL   | 8
                3  |  MIT   | 28 6 28
                4  |  COD   | 9 9 KOUC FLRS KOUC
                4  |  ESA   | 9 9 TLSE TLSE
                4  |  GFZ   | BOGT LHAZ THTI TLSE
                4  |  GRG   | 32 32 TLSE USNO ADIS TLSE USNO
                4  |  MIT   | 22 22 JOZ2 TLSE JOZ2 TLSE
                5  |  COD   | 9 9 KOUC KOUC
                5  |  ESA   | 9 9 MATE UNSA
                5  |  GFZ   | ASPA BOGT LHAZ MATE MIZU
                5  |  GRG   | DARW MATE NRMD
                5  |  JPL   | 8
                5  |  MIT   | SYDN GMSD MAW1 MOBS SYDN
                6  |  COD   | 9 9 KOUC KOUC
                6  |  ESA   | 9 9
                6  |  GFZ   | BOGT
                6  |  GRG   | DARW WROC DARW KOUC WROC
                6  |  JPL   | 25
                6  |  MIT   | KOUC KOUC SYDN

 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 table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G10 | 2013_02_13 | 2013017 

 7. 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
               ----+--------+---------------
                4  |  GRG   |  32
                4  |  MIT   |  32

 8. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G24 |    |    |    |    |    |  2 |  2 |
           PRN G32 |    |    |    |    |  4 |    |    |

 9. 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.

10. 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 |    -.9     .4   -2.0     -40     -5     24     .07
       EMR  |   0 |   17.8    5.0   26.7      13      4     12     .18
       ESA  |   0 |    7.8    7.9  -15.5     176   -318    145     .24
       GFZ  |   0 |    -.6     .4   -1.2      -5     -8      6     .11
       GRG  |   0 |    2.8    -.8   -2.6     -10     14     13     .51
       JPL  |   0 |    2.6    2.3   19.7     -88      9    -31    -.37
       MIT  |   0 |    6.5    4.3   13.0      -1     -5    -14     .21
       NGS  |   0 |    9.7    2.2   10.3     -29    -85     97     .59
       SIO  |   0 |    6.3   -1.3   25.4       4    -85    216     .12

       COD  |   1 |    -.9     .4   -1.9     -64    -23     50     .19
       EMR  |   1 |   10.9    9.8   21.1      16     -2      6     .09
       ESA  |   1 |    1.0   10.3  -11.6     192   -208    131     .14
       GFZ  |   1 |    -.8     .5    -.8     -74    -46      2    -.01
       GRG  |   1 |   -2.4    3.0   -2.7     -13     17     15     .21
       JPL  |   1 |   -4.9    5.1   25.0     -75      2    -48    -.12
       MIT  |   1 |    3.9    6.6    9.7       3      3    -12     .10
       NGS  |   1 |    3.9    2.8   15.8     -49    -41     32     .32
       SIO  |   1 |    5.5    6.5    8.1     158   -135    310     .12

       COD  |   2 |    -.5     .3   -1.1     -65     -7     21    -.08
       EMR  |   2 |   10.9    9.7   15.3       9      4     -3     .03
       ESA  |   2 |    1.3    5.0  -14.6      87   -231    150    -.03
       GFZ  |   2 |    -.8    -.2     .1     -56    -21    -17    -.26
       GRG  |   2 |   -2.9     .8    1.1     -10     11     16    -.01
       JPL  |   2 |    2.4    4.6   23.1     -77      2    -41    -.34
       MIT  |   2 |   -1.2    5.5    9.7      -1      4    -15    -.13
       NGS  |   2 |    7.6    3.3   12.4     -36    -67     73     .37
       SIO  |   2 |    4.6    2.5   21.2      34    -50    113    -.27

       COD  |   3 |   -1.2     .3   -1.8     -65     16     34    -.12
       EMR  |   3 |   13.7    8.0   22.0      21     13      2     .06
       ESA  |   3 |     .8   10.3   -8.2     145   -188    114     .18
       GFZ  |   3 |    -.4     .4     .0     -45    -17     -8    -.15
       GRG  |   3 |   -2.0     .7   13.6      -3     39      1     .11
       JPL  |   3 |    6.9    5.5   22.1     -94     43    -67    -.19
       MIT  |   3 |   -1.1    4.6   11.9      10      1    -10     .13
       NGS  |   3 |    8.5    4.0   18.3     -66    -74     64     .55
       SIO  |   3 |    4.2    4.9   26.3      46    -37     63    -.05

       COD  |   4 |   -1.5     .7   -1.9     -42      9     17     .27
       EMR  |   4 |   17.7    7.8   25.2      18     11      3     .23
       ESA  |   4 |    1.8    5.3   -6.4      88   -173    138     .23
       GFZ  |   4 |     .7    1.3     .6     -26    -37    -10     .03
       GRG  |   4 |   -3.1  -10.7   22.7     -26     39     -9     .64
       JPL  |   4 |    -.3    3.5   32.6     -74     24    -55    -.04
       MIT  |   4 |    3.0    -.8   14.8       2     -1    -16     .15
       NGS  |   4 |    5.8    5.1   13.5     -46    -45     53     .63
       SIO  |   4 |    7.5   -5.8    4.2    -136   -186    -64     .27

       COD  |   5 |   -1.3     .3   -1.9     -41     -3     31     .26
       EMR  |   5 |   19.1    1.2   21.3       2     18      2     .23
       ESA  |   5 |    1.2    9.8   -2.2     136   -166    113     .38
       GFZ  |   5 |    -.5    1.0    -.2     -36    -23    -17    -.02
       GRG  |   5 |     .6    1.9    7.3       0     11     22     .25
       JPL  |   5 |    -.3    1.0   23.3     -92    -36    -13    -.17
       MIT  |   5 |    4.9    3.5   11.8      -3      6    -11     .05
       NGS  |   5 |    4.4   -1.7   12.5     -65    -40     29     .62
       SIO  |   5 |    4.8    -.3   34.0     -61    -24   -108     .14

       COD  |   6 |   -1.0     .7   -1.5     -55      5     28     .08
       EMR  |   6 |   14.9    -.1   25.3      -1      5      5     .08
       ESA  |   6 |    1.9    4.2    -.5      89   -177    176     .12
       GFZ  |   6 |     .0    1.1    -.1     -28    -23     -7    -.17
       GRG  |   6 |    4.0    2.4   11.3      -7     18    -18     .16
       JPL  |   6 |   -1.6    4.7   27.3     -97     13    -23    -.14
       MIT  |   6 |    2.4    4.4   18.4       7     -2    -14    -.03
       NGS  |   6 |    2.2    1.2   10.7     -43    -21     20     .38
       SIO  |   6 |    1.1    1.9   30.3       7     13     16    -.11


11. 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.

12. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; 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 1.1727.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1727.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 2.1727.[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 3.1727.[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 5.1727.0-6). 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 1727 summary.                       (Feb 10, 2013 - Feb 16, 2013)

Table 1.1727.a   GPS week: 1727   MJD: 56333.000-56339.000

         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  264|   -2     0    -7   -12    41    17  -.38   12   11 |   -1040     236     20     94
        |    0     0     1    28    33    10   .06           |     349     515
emr   79|    5     0    10   -26    26     8   .17   18   17 |    1034     622     13     99
        |    1     1     2    26    21    10   .02           |    1491     634
esa  167|    0     1     0    90   -77     6   .10    7    6 |    -981    1061     10    105
        |    0     0     1    30    42    15   .02           |    1005     744
gfz  202|    0    -1    -2   -30    -9    -1  -.39   10   10 |       2    -168     20    126
        |    0     0     0    55    58     8   .03           |     258     405
grg  136|    0     0    -2   -23    37     5   .58   21   16 |     -59      30     17    136
        |    0     0     4    13    35    25   .03           |     197     457
igr  n/a|    0     0    -3   -43    82   -32  -.15    5    4 |    3290     330     17     91
        |    0     0     0    25    21    10   .02           |    1549     875
jpl   80|    0     0     4   -43    31   -15   .44   15   16 |    2969     436     17    111
        |    1     1     1    21    26    22   .07           |    1689     807
mit  238|    0    -1     0     3    34    -8  -.55   17   11 |    -154     253     23    203
        |    1     0     1    24    17    20   .02           |     181     482
ngs  242|    0     0     2   -61    26    -8   .36   12    9 |   -1067     246   1897   3457
        |    0     0     3    30    29    27   .04           |     285     463
sio  266|   -1    -3    -4   -26   -22    16  -.30   24   19 |     ---     ---    ---    ---
        |    1     1     1    84    64   163   .03           |     ---     ---


Table 1.1727.b   GPS week : 1727   MJD: 56333.000-56339.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1727.0   GPS week: 1727   Day: 0   MJD: 56333.000                            

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  265|   -1     0    -8   -30    78    15  -.41   11   10 |    -496    -240     20     90
emr   78|    5    -1    15   -57    64   -10   .17   18   17 |   -1246    1152     16    105
esa  167|    0     0    -1    78  -158    24   .07    6    6 |    -447     745      9     90
gfz  199|    0    -1    -2    34    60     1  -.42   12   12 |      52    -738     21    121
grg  137|    0     0   -10   -26    97    11   .57   16   15 |     143    -136     18    146
igr  n/a|    0     0    -2   -68   107   -38  -.16    5    5 |     824    1345     18     91
jpl   80|    0     0     7   -32    63   -31   .35   15   15 |     279    1130     17    106
mit  231|    0    -2     0    -6    58    28  -.59   15   13 |    -114     375     24    215
ngs  245|    0     0     3   -75    -5   -46   .39   11    9 |    -630    -146   1734   3479
sio  266|   -1    -4    -2   -60    -4   166  -.33   22   21 |     ---     ---    ---    ---

Table 2.1727.1   GPS week: 1727   Day: 1   MJD: 56334.000                            

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  268|   -2     0    -6   -17    33    19  -.48   12   12 |    -987     299     24     95
emr   80|    2    -1    10   -46    17     8   .15   16   16 |    -305     -34     12    101
esa  167|    0     2     0   146   -68     3   .07    7    6 |     154     -52     12    141
gfz  201|    0     0    -4   -74   -47    15  -.42   10   10 |    -179    -562     19    128
grg  138|    0     0    -5   -32    20    31   .62   15   14 |     121    -756     19    136
igr  n/a|    0     0    -4   -61    79   -23  -.18    5    4 |    2077      55     18    100
jpl   80|    2     0     3   -55    33   -53   .35   14   13 |    1515     -12     17    113
mit  240|    0    -2    -3     7    46     7  -.56   15   12 |      41    -434     26    211
ngs  242|    0    -1     5   -82    53   -16   .37   10    8 |   -1028     285   1894   3400
sio  266|   -2    -4    -3   121   -76   270  -.32   21   20 |     ---     ---    ---    ---

Table 2.1727.2   GPS week: 1727   Day: 2   MJD: 56335.000                            

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  259|   -2     1    -7    28    60    19  -.40   12   12 |   -1609    1166     19     91
emr   80|    3     0     9    19    48     3   .17   16   16 |     323     939     15     94
esa  167|    1     1    -1    75   -85    21   .10    7    7 |   -2207    1232     13    115
gfz  203|    0     0    -3   -94   -62    -4  -.40    9    9 |    -112      10     20    119
grg  136|    0    -2    -1    -9    57    -6   .56   16   16 |    -451     522     16    125
igr  n/a|    0     0    -2   -13    88   -28  -.16    4    4 |    3185     948     16     76
jpl   80|    1     0     5    -8    68    -9   .41   14   13 |    2486    1064     16     90
mit  240|   -1    -2    -1    33    26   -17  -.55   13   10 |    -499     703     23    178
ngs  244|    0     0     4   -60    26   -17   .35   10    9 |   -1499    1066   2104   3817
sio  260|   -2    -4    -2    18   -10    55  -.29   20   18 |     ---     ---    ---    ---

Table 2.1727.3   GPS week: 1727   Day: 3   MJD: 56336.000                            

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  262|   -1     0    -7    -8   -19     4  -.33   11   10 |    -927    -129     18    103
emr   80|    4     0     9   -14     7    25   .18   17   16 |    1364     739     11    101
esa  167|    0     2    -1   111   -91    12   .10    7    6 |   -2069    1368      8    103
gfz  201|    0    -1    -1   -87    59     0  -.33    8    8 |    -191     318     20    131
grg  137|    1     0     0   -48    31   -19   .55   17   18 |    -134     247     16    138
igr  n/a|    0     0    -1   -41    65   -32  -.13    4    4 |    4263     533     18     96
jpl   80|    0    -1     1   -46     3    -3   .51   16   16 |    3707     673     18    121
mit  240|   -2    -1    -1    19    33   -17  -.53   14   11 |    -196     499     24    194
ngs  242|    0     0     6   -31    59   -12   .35   11   10 |    -961     -76   1635   2967
sio  272|   -1    -4    -3     8     9    12  -.28   21   18 |     ---     ---    ---    ---

Table 2.1727.4   GPS week: 1727   Day: 4   MJD: 56337.000                            

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  262|   -2     0    -4    -3    21    11  -.33   13   11 |    -838    -272     25    100
emr   79|    5     0     9   -28     6    13   .18   20   17 |    2851     726     13     99
esa  167|    0     0     0    59   -77     8   .12    7    7 |    -442    1383      9     92
gfz  203|    0    -1    -2    27    35    -9  -.37   11   10 |     527    -371     20    128
grg  136|    0     0     2   -15    42    -1   .55   48   16 |     -24     548     25    147
igr  n/a|    0     0    -3   -41    46   -32  -.16    5    4 |    5577    -236     17     93
jpl   80|    1     1     4   -37    10   -22   .50   19   22 |    5283     195     17    107
mit  240|    0    -2    -1    22    31   -28  -.52   34   10 |    -125     770     22    199
ngs  240|    0     0     0  -107     4    43   .44   12   10 |    -874    -262   2050   3826
sio  267|    0    -2    -5  -133  -129  -141  -.24   41   17 |     ---     ---    ---    ---

Table 2.1727.5   GPS week: 1727   Day: 5   MJD: 56338.000                            

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  267|   -1     0    -7   -61    71    38  -.33   12   11 |   -1210     563     22     96
emr   79|    6     0     7   -46    18     7   .18   17   16 |    2278    -448     11     91
esa  167|    0     2     1   100   -27   -23   .12    7    6 |     -62     492     10     99
gfz  204|    0    -1    -1    11   -70   -11  -.38   10    8 |    -174    -108     20    135
grg  135|    0     0     0   -11   -20    46   .60   17   15 |     -26    -198     14    139
igr  n/a|    0     0    -2   -70    86   -18  -.12    6    5 |    4063   -1228     18     91
jpl   80|   -1     0     5   -80    10    13   .50   16   15 |    4206   -1081     17    122
mit  240|    0     0     0   -10     1   -10  -.55   15   11 |      28    -361     24    214
ngs  244|    1    -2    -1   -55    54   -12   .33   17   10 |   -1244     561   1987   3569
sio  266|    0    -1    -4   -94   -19  -185  -.32   22   18 |     ---     ---    ---    ---

Table 2.1727.6   GPS week: 1727   Day: 6   MJD: 56339.000                            

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  270|   -1     1    -8     8    43    12  -.41   12   12 |   -1213     268     18     85
emr   80|    6    -3     9    -8    22    10   .15   19   18 |    1979    1280     15    102
esa  167|    0     2     1    66   -36     0   .11    7    7 |   -1800    2261     10    101
gfz  205|    0     0    -2   -28   -40     0  -.39   10    9 |      96     274     20    122
grg  135|    1     0    -1   -22    36   -20   .63   16   14 |     -44     -14     16    122
igr  n/a|    0     0    -2    -7   103   -52  -.13    5    4 |    3043     894     17     92
jpl   80|    0    -2     4   -40    32    -3   .47   16   15 |    3308    1085     17    118
mit  240|    1    -2     0   -38    40   -22  -.57   13   11 |    -217     219     24    210
ngs  243|   -1     0     0   -18    -9     3   .31   12    9 |   -1239     296   1876   3142
sio  269|    0    -1    -6   -47    74   -63  -.32   22   19 |     ---     ---    ---    ---

       
       
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 3.1727.0   GPS week: 1727   Day: 0   MJD: 56333.000                            

        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   32    6   12   17    6   15   14    7   17    5 |    30   41   31   34   37   29   38   25   35   31    31
   2  |   13   20    4   11   14    4   13   10    9   12    4 |    19   30   22   17   31   19   25   19   28   19    22
   3  |   12   11    6   10   13    4   16    8   11   11    4 |    18   21   20   14   19   16   21   15   21   20    16
   4  |   14   15    7   11   18    5   16   13    9   23    4 |    51   59   53   50   56   51   63   48   53   67    50
   5  |   10   17    6   13   10    4   17    9   15   22    4 |    28   27   26   28   31   24   25   28   24   26    26
   6  |    9   12    7   10   11    4   15   13    8   24    3 |    13   23   19   13   21   14   23   17   21   32    17
   7E |   13   16    7   13   19    5   16   11   10   12    4 |    14   23   17   17   22   14   24   13   21   16    16
   8E |   16   21    8   12   14    7   14   23   12   29    5 |    50   51   47   49   47   47   56   50   50   36    48
  X9E |   17   24    6   12   14    9  ---   16   15   20    5 |    36   39   33   36   30   33  ---   35   30   35    33
  10  |   12   10    4   11   11    4   11    9    9   18    3 |    17   11    6    9   11    8    9   10    8   11    12
  11E |    6   14    4   13   16    5   12   13   12   14    4 |    18   26   23   20   29   19   24   17   27   21    21
  12  |   14   16    5   12   19    3   15   11   10   16    4 |    17   25   20   18   28   16   24   20   24   24    18
  13  |    8   19    7   12   20    5   12   11    9   15    4 |    17   32   17   16   34   14   27   20   21   19    20
  14  |    8   16    4   14   20    4   16   15   11   21    4 |    17   24   19   22   33   17   26   21   23   24    20
  15  |   12   22    8   13   17    4   16   12    9   21    4 |    14   31   16   20   31   15   26   18   24   19    19
  16  |   10   19    8   15   12    5   17   10   12   24    4 |    15   26   22   23   27   16   26   18   23   19    19
  17  |   11   16    5   14   19    5   20   12   10   16    4 |    27   32   26   21   41   26   36   27   31   27    28
  18  |    9   16    7   14   19    3   14   12   10   28    4 |    23   27   26   31   31   23   25   27   24   25    26
  19  |    8   14    7   12   15    4   22   15   13   20    4 |    21   26   20   18   26   18   27   20   21   25    19
  20  |    9   16    8   20   12    5   14   16    7   27    4 |    19   23   21   34   22   21   27   23   21   25    22
  21  |    7   19    6   14   18    5   14   10   14   19    4 |    13   28   19   17   31   17   21   13   24   19    18
  22  |    6   17    3   11   17    4   14   17    8   42    4 |    31   28   33   35   40   30   31   34   30   37    32
  23  |    8   19    6   11   17    5   15   13   11   26    4 |    18   31   19   19   27   15   27   20   19   22    19
  24E |   12   23    8    9   26   10   20   10   15   14    5 |    62   60   66   61   59   62   62   60   65   62    59
  25  |   10   19    4    9   19    4   15   17   10   15    4 |    12   22   17   17   29   15   29   25   18   21    19
  26  |    6   15    6   13   12    5    8    7   12   18    3 |    12   23   14   15   22   14   20   16   20   20    17
 X27  |    9  ---  ---  ---  ---   81  ---  ---  ---  ---    0 |    37  ---  ---  ---  ---   75  ---  ---  ---  ---    37
  28  |   12   14    7   13   14    3   13   17    6  ---    4 |    16   31   21   23   34   20   27   22   24  ---    22
  29  |   16   22    5   12   16    4   18   15   14   14    5 |    18   30   24   25   25   23   31   22   26   28    21
  30  |    9   14    5   12   10    3   11   12    9   20    3 |    24   28   24   29   25   23   29   28   25   28    25
  31E |   12   18    7   13   20    5   14   12    9   15    4 |    14   25   17   17   29   16   22   20   21   23    15
  32  |   11   17    8   12   12    6   12   48    9   50    7 |    18   20   17   24   11   16   25   50   17   53    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    6   12   16    5   15   15   11   22      |T   23   29   24   24   30   23   29   25   26   27    24
 WRMS |   10   17    6   12   15    5   15   13    9   21      |NE  20   27   22   22   28   22   27   23   24   26    22
 MEDI |   10   17    6   12   16    5   15   12   10   19      |MD  18   27   21   21   29   18   26   21   24   24    20

Table 3.1727.1   GPS week: 1727   Day: 1   MJD: 56334.000                            

        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  |   19   32    6    9   17    5   14   14    9   18    5 |    28   32   25   22   31   20   30   20   27   26    22
   2  |   14   17    5   10   15    4   15    9   10   12    4 |    16   27   21   18   34   18   27   16   27   20    22
   3  |   10   12    6   13   15    4   10    9    8   11    3 |    20   23   18   19   21   17   22   19   22   21    18
   4  |   16   13    7    9   13    4   13   13   10   25    4 |    26   36   30   24   33   26   39   22   33   40    29
   5  |   11   15    6   10    8    4   15   10   10   20    4 |    17   25   16   20   22   16   25   17   21   16    17
   6  |    9   13    7   13   14    5   12   11   10   24    4 |    13   22   15   16   22   12   23   15   21   31    15
   7E |   11   20    8    9   15    4   15   14   10   12    4 |    23   26   23   21   26   17   26   17   26   20    19
   8E |   17   16    8    9   16    7   17   22   14   22    5 |    45   51   43   47   41   44   51   43   49   39    45
  X9E |   20   24    9   12   17   11  ---   19   19   16    6 |    33   32   27   30   24   29  ---   29   31   29    26
  10  |   14   10    4    9   10    3    9    6   10   16    3 |    16   11    7    8   10    7   11   10   11   10    10
  11E |   12   12    5    8   15    6    9   12   10   16    3 |    14   23   21   17   31   17   23   15   26   22    18
  12  |   11   16    5   11   18    4   14   11    9   14    4 |    21   27   19   26   30   22   27   24   28   24    23
  13  |    7   14    5    9   17    4   14   13    6   14    3 |    16   27   18   14   34   13   27   17   19   15    17
  14  |    8   15    5    9   19    3   10   11   11   17    4 |    17   26   18   20   31   17   25   19   25   21    20
  15  |   13   20    7   12   16    3   15   14    9   19    4 |    16   26   16   18   33   14   26   15   24   17    17
  16  |    9   17   10   12   14    5   19   12    8   24    4 |    13   22   20   20   30   14   24   16   20   15    17
  17  |   14   15    6   13   18    5   19   11    8   14    4 |    25   30   24   20   39   21   33   22   29   22    24
  18  |    5   15    8   11   16    4   11    9   11   28    4 |    18   22   21   23   24   19   22   21   25   20    20
  19  |   15   14    5    9   17    6   14   13    7   18    4 |    25   24   20   17   28   18   27   19   24   23    19
  20  |    7   16    8   15   12    3   13   12    7   25    4 |    16   21   15   24   17   12   21   15   15   18    14
  21  |    7   18    9   12   16    7   14    9   10   17    4 |    13   23   20   14   32   16   21   12   24   15    16
  22  |    6   12    3    7   14    2   11   15   11   42    3 |    20   24   24   22   31   22   27   26   26   32    23
  23  |   10   16    6    7   14    6   14   13    8   24    4 |    19   28   19   14   26   14   24   17   20   19    17
  24E |   22   25    8    9   24    9   16   18   11   16    6 |    58   62   61   59   56   51   62   63   63   62    59
  25  |   10   15    5    8   17    4   14   12   10   13    4 |    16   17   14   15   26   12   27   18   18   17    15
  26  |   12   16    5   13   11    4   10    9    6   15    3 |    12   21   14   15   22   11   20   13   17   19    14
 X27  |    9  ---  ---  ---  ---   77  ---  ---  ---  ---    0 |    51  ---  ---  ---  ---   39  ---  ---  ---  ---    51
  28  |   18   13    6   10   14    3   11   15   12   16    4 |    18   27   21   19   32   17   27   15   25   22    19
  29  |   18   19    8    9   13    5   18   14   10   15    5 |    17   23   21   18   24   18   26   20   18   25    16
  30  |    9   12    7    8   13    4   12   30    6   22    4 |    56   57   59   59   56   57   58   59   56   57    56
  31E |    7   15    6    8   21    4   16    8   10   23    4 |    23   27   24   21   31   20   26   21   25   21    21
  32  |   10   14    8    8   12    6   10   39   11   40    6 |    15   17   14   14   15   12   18   33   15   34    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    7   10   15    5   14   15   10   21      |T   23   27   22   22   29   20   28   22   26   24    22
 WRMS |   12   16    6   10   14    4   13   12    8   20      |NE  20   25   20   19   28   18   26   20   23   23    20
 MEDI |   11   15    6    9   15    4   14   12   10   17      |MD  18   26   20   20   30   17   26   19   25   21    19

Table 3.1727.2   GPS week: 1727   Day: 2   MJD: 56335.000                            

        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   33    8   10   17    4   15   11    9   18    5 |    27   35   33   29   39   28   38   26   30   33    28
   2  |   13   19    6    8   16    3   11    8   11   13    4 |    25   30   27   21   38   24   28   24   29   24    25
   3  |    8   11    5   11   19    4    9   10    9   12    3 |    22   24   21   15   24   16   24   19   22   18    18
   4  |   18   14   10    8   11    4   12   11    9   24    4 |    25   32   26   22   31   24   36   20   29   38    25
   5  |   16   15    7   11   15    4   14   10   12   19    4 |    27   27   26   27   30   24   30   23   24   22    23
   6  |    9   12    5   10   15    3    9    9    7   21    3 |    21   28   23   20   26   20   29   20   27   32    21
   7E |   13   16    7    9   14    7   15   10   13   11    4 |    25   25   23   19   26   18   25   17   27   20    18
   8E |   23   25    9    9   16    5   16   20   17   20    6 |    29   40   27   31   29   28   35   27   32   19    27
  X9E |   16   22   11    9   17    8  ---   19   23   18    6 |    37   34   31   33   27   30  ---   35   35   31    29
  10  |   14   10    5    8    9    4    8    8    7   16    3 |    18   12   13    8   10   12   14   11   13   10    12
  11E |   11   13    7    8   15    4   12    7   14   10    4 |    18   24   22   16   29   17   24   15   26   17    18
  12  |   14   18    5    8   20    3   17    9   12   13    4 |    23   26   20   22   31   19   28   20   28   23    20
  13  |    9   15    6    9   18    4   14   11   10   11    4 |    21   32   21   18   35   18   30   19   22   19    19
  14  |   12   16    5   10   16    5   12   10    8   17    4 |    22   28   20   24   31   19   30   19   22   22    21
  15  |   17   19    9   11   17    5   16   12    8   18    5 |    22   29   19   19   31   17   30   18   26   19    19
  16  |   11   16    8    8   14    3   15   10    9   25    4 |    22   29   25   22   30   20   32   22   26   22    22
  17  |   13   13    6   10   20    4   18   10    6   15    4 |    32   34   31   23   39   26   38   25   32   25    28
  18  |   14   15    8   11   16    3   11   12   11   27    4 |    27   27   25   28   22   22   26   23   23   22    24
  19  |    8   11    5    9   18    5   11    9   10   18    3 |    24   25   23   20   30   22   28   20   26   24    21
  20  |   10   13    9   14   12    4   13    9    9   23    4 |    28   26   24   28   21   22   27   22   22   25    22
  21  |    6   17    9   10   18    3   11    9    9   18    4 |    21   30   25   17   33   21   26   17   26   18    21
  22  |    9   14    8    6   13    4   10   15   10   42    4 |    27   30   29   29   29   27   32   28   26   33    27
  23  |   12   17    7    8   15    3   15    9    9   24    4 |    22   32   21   17   28   19   30   20   23   21    19
  24E |   10   20   10    8   24    6   13   12   13   11    5 |    53   46   51   52   55   47   49   47   51   51    49
  25  |    8   16    4    8   18    4   13   11    9   15    4 |    16   21   19   16   28   14   30   20   23   18    17
  26  |   10   14    6   10   15    4   10   10    8   15    3 |    21   25   21   20   26   18   26   21   23   25    20
 X27  |    9  ---  ---  ---  ---   61  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---   53  ---  ---  ---  ---    37
  28  |   17   13    7    8   17    4   15   14   10   15    4 |    22   28   22   18   32   20   31   21   23   18    19
  29  |   16   20    6    7   16    5   21   15    9   13    5 |    22   27   25   23   25   22   35   23   29   25    22
  30  |    9   12    7   11   13    2    9   10   11   18    3 |    32   34   34   35   35   31   36   35   34   37    33
  31E |    6   14    7    8   19    4   18   10    8   16    4 |    21   29   21   18   32   18   29   20   26   19    19
  32  |   10   13   11    8   12    6   10   40    9   32    6 |    24   21   24   22   20   17   22   29   19   19    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    7    9   16    4   14   13   10   20      |T   25   28   24   22   29   22   29   22   26   24    23
 WRMS |   12   16    7    9   16    4   13   10    9   18      |NE  24   27   23   21   28   22   29   21   25   23    22
 MEDI |   11   15    7    9   16    4   13   10    9   18      |MD  23   28   24   22   30   20   30   21   26   22    21

Table 3.1727.3   GPS week: 1727   Day: 3   MJD: 56336.000                            

        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  |   10   32    7    7   14    5   14   14   11   18    5 |    24   39   28   26   39   28   36   21   30   28    26
   2  |   14   17    5    7   12    3   14    9    9   12    4 |    27   28   26   21   30   22   29   19   25   19    24
   3  |    9   11    5    6   18    4   11   10   12   12    3 |    22   21   20   14   25   17   28   20   21   19    19
   4  |   15   13    9    8   15    4   15   12   11   24    4 |    28   32   27   22   29   22   39   19   27   37    25
   5  |   10   16    7    6   13    4   17    9   10   18    4 |    25   26   24   24   31   23   29   25   23   23    23
   6  |    9   11    7   10   16    5   13   12   11   23    4 |    20   23   19   15   26   16   31   18   24   31    19
   7E |   14   19    9   10   16    5   18    9   14   11    5 |    20   26   17   19   29   16   28   20   24   18    18
   8E |   18   20   11    6   23    5   17   18   22   24    6 |    48   56   50   48   48   49   58   52   57   42    50
  X9E |   16   24   11    7   20    7  ---   24   26   15    7 |    34   34   28   28   27   29  ---   32   33   30    27
 X10  |    7  ---  ---  ---  ---   26  ---  ---  ---  ---    0 |    26  ---  ---  ---  ---   42  ---  ---  ---  ---    21
  11E |    8   12    5    5   10    4   11   12   13   11    3 |    18   27   20   17   30   18   30   23   24   23    20
  12  |   12   18    6    8   21    4   19   11    9   13    4 |    28   27   17   23   34   19   29   21   28   23    22
  13  |    8   16    7    6   18    4   15   11   11   11    4 |    25   30   21   17   35   19   34   19   29   17    23
  14  |    8   19    5    8   13    4   17   10   11   16    4 |    26   29   23   23   32   21   31   22   27   22    24
  15  |   10   21    9    8   17    6   22   12    9   18    4 |    19   30   17   15   29   15   32   13   22   15    17
  16  |    9   16    5    7   16    3   18   10   11   23    4 |    22   25   22   24   33   20   31   22   27   22    23
  17  |    9   14    5   10   24    4   21    9    8   13    4 |    33   34   26   21   39   25   40   26   28   27    27
  18  |    7   15    5    8   13    3   17    9    8   28    3 |    25   27   25   25   28   25   29   25   25   22    25
  19  |   10   14    4    7   23    4   15   12   11   19    4 |    28   27   19   19   28   18   34   20   23   26    21
  20  |    8   14    9   15   14    4   14   13   12   23    4 |    22   24   17   29   20   17   28   21   20   26    20
  21  |    8   17    6    8   13    3   14    8   10   16    3 |    18   27   20   16   29   16   25   17   19   15    18
  22  |    7   14    5    7   12    4   14   15   11   40    3 |    34   32   32   30   34   31   37   31   29   34    31
  23  |    8   16    6    6   13    4   15    8   13   24    3 |    25   32   20   17   29   20   33   20   29   20    22
  24E |   10   22    8    9   29    7   15   12   13   13    5 |    57   60   61   54   66   57   64   59   60   59    58
  25  |   13   16    4    6   17    4   17   10    9   12    4 |    27   21   16   18   31   15   31   19   19   18    19
  26  |    8   17    4    8   18    3   15   12    8   16    4 |    20   24   16   12   23   14   27   17   19   19    17
 X27  |    7  ---  ---  ---  ---  131  ---  ---  ---  ---    0 |    43  ---  ---  ---  ---  120  ---  ---  ---  ---    43
  28  |   17   16    5    7   21    3   16   11   13   17    4 |    24   31   24   22   38   22   32   24   27   19    23
  29  |   15   21    7    7   21    4   26   16    9   12    5 |    21   34   27   24   31   25   42   27   30   29    26
  30  |    7   10    5    9   13    3   13   11   10   19    3 |    30   31   30   27   32   28   32   30   31   30    28
  31E |    7   14    4    8   20    5   15    9   11   11    4 |    18   23   16   15   27   15   24   16   25   15    16
  32  |   10   13    9    8   11    6   11   44   11   52    6 |    22   22   16   18   14   15   27   40   13   49    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   17    7    8   17    4   16   14   11   21      |T   26   30   24   22   31   26   33   24   27   25    24
 WRMS |   10   16    6    8   18    4   16   11   10   18      |NE  25   28   22   20   29   25   31   22   24   24    23
 MEDI |    9   16    6    7   16    4   15   11   11   16      |MD  25   27   21   21   30   20   31   21   25   23    23

Table 3.1727.4   GPS week: 1727   Day: 4   MJD: 56337.000                            

        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  |   10   28    7    9   15    5   14   12   10   16    4 |    24   31   27   25   38   27   38   22   32   31    26
   2  |   12   17    7    9   15    3   15    7   14   12    4 |    26   29   25   21   32   23   31   19   33   22    26
   3  |   11   14    6    9   17    5   12    7    9   10    3 |    20   24   19   14   22   18   26   18   24   19    18
   4  |   13   12    7    6   15    6   14    8    8   20    3 |    27   35   30   26   30   29   42   22   34   40    30
   5  |   12   19    8    9   13    5   18    7   11   20    4 |    24   29   22   26   24   23   27   23   30   21    24
   6  |    9   15    6   10   16    4   13   10    8   24    4 |    18   31   21   20   29   20   31   21   28   36    22
   7E |   14   20    8   10   17    5   18   11   12   11    5 |    23   24   20   22   29   17   26   20   27   17    20
   8E |   21   17    9    9   24    5   18   16   20   27    6 |    43   38   38   43   43   39   43   38   43   42    39
  X9E |   18   25   11   11   21   11  ---   21   23   15    7 |    38   39   33   33   31   33  ---   34   32   33    32
  10  |   12    9    5    7   14    3   10    7   10  ---    3 |    18   14    9   12   15   17   15   12    9  ---    15
  11E |   14   14    8    7   13    4   12   13   15   15    4 |    25   31   27   25   30   26   30   26   34   29    26
  12  |   15   19    7    8   20    5   20    9   15   14    5 |    31   28   22   23   37   20   27   27   28   23    24
  13  |   10   17    7    9   19    5   15    8    9   13    4 |    24   31   21   20   37   20   34   20   25   19    23
  14  |    9   19    6    9   16    5   15   11   14   16    4 |    27   31   27   23   34   22   32   26   25   25    26
  15  |   10   19    8   10   17    4   18   13   12   19    4 |    21   32   21   22   33   19   30   17   27   21    21
  16  |   13   17    7   10   15    5   18    9   10   23    4 |    20   27   23   22   33   21   28   21   28   18    22
  17  |   14   15    7   10   24    4   22    8   11   14    5 |    24   37   27   25   42   27   43   26   35   31    29
  18  |    6   16    7   15   13    3   16    8   13   28    4 |    19   24   22   24   21   19   23   22   23   18    20
  19  |    9   18    5    9   20    3   17    6    9   18    4 |    25   34   23   21   31   21   34   24   25   27    24
  20  |   10   16    8   19   14    5   13   14   12   25    5 |    22   28   23   32   28   23   28   27   26   27    24
  21  |    8   15    4   11   15    4   12    8   12   14    4 |    18   27   20   16   32   18   25   19   23   16    20
  22  |    8   16    7    8   12    4   16   19   10   40    4 |    29   29   29   28   31   26   30   33   27   32    28
  23  |   10   18    7   10   14    5   16   10   10   26    4 |    24   33   23   21   32   19   32   21   26   21    23
  24E |   16   24    9   13   21    8   15   15   21   16    6 |    59   61   68   60   73   58   62   59   68   59    61
  25  |   10   15    5    9   20    4   15    9   10   10    4 |    23   23   23   19   31   18   31   22   22   19    22
  26  |    9   15    5    9   11    4   13    9    9   15    3 |    20   26   16   16   24   17   26   16   20   22    18
 X27  |    6  ---  ---  ---  ---   89  ---  ---  ---  ---    0 |    39  ---  ---  ---  ---   57  ---  ---  ---  ---    40
  28  |   15   18    8   10   18    3   18   12    9   15    4 |    23   34   23   27   37   24   35   25   30   23    26
  29  |   16   22    6    8   20    6   24   13   10   13    5 |    21   31   23   25   32   24   34   23   27   27    24
  30  |   12   12    6   12   12    4   12    8    9   18    3 |    18   21   18   19   24   15   22   19   21   22    17
  31E |   11   13    7   10   17    5   14    8    9   17    4 |    21   25   20   19   30   17   25   15   23   17    19
  32  |   26   56   18   26  247   17   56  176   20  195   14 |    70   30   77   66   79   71   26  147   77  158    60
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   20    7   11   48    5   19   34   12   41      |T   27   30   26   25   33   25   31   27   30   30    26
 WRMS |   11   17    7   10   16    4   22   10   10   17      |NE  25   28   24   23   32   24   30   26   28   29    25
 MEDI |   11   17    7    9   16    5   15    9   10   16      |MD  24   30   23   23   31   21   30   22   27   23    24

Table 3.1727.5   GPS week: 1727   Day: 5   MJD: 56338.000                            

        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   26    6    7   15    4   14   12   16   16    5 |    24   25   23   18   29   20   31   16   27   25    19
   2  |   11   19    6    6   13    4   14   12   10   13    4 |    19   27   24   19   32   19   25   17   28   19    22
   3  |   11   11    6    7   15    4   10    9   12    9    3 |    22   23   21   15   22   19   25   16   22   19    17
   4  |   11   13    7   11   13    4   14    9    7   21    4 |    19   31   28   26   29   23   36   18   28   37    25
   5  |   10   17    7    7   12    4   16    8   10   19    4 |    18   25   20   20   25   17   25   18   23   16    19
   6  |   13   12    6    8   15    4   11   10   12   28    4 |    11   23   18   14   22   13   26   14   20   34    14
   7E |   11   16    6    6   15    5   15   12   12   12    4 |    27   28   25   21   26   21   29   22   33   21    22
   8E |   20   23   10    9   40    7   19   17   23   31    7 |    37   48   36   41   50   38   46   39   47   35    38
  X9E |   15   26   11    9   25    8  ---   23   29   24    7 |    35   34   29   32   24   28  ---   33   36   29    26
  10  |    9   10    4    7   15    3   10   15    9   15    3 |    11   12   10   12    9   12   11   12   14    6     9
  11E |   12   16    5    8   15    5   13   11   13   12    4 |    26   31   28   26   31   26   29   23   33   29    26
  12  |   10   16    7    7   16    4   17   12   13   16    4 |    19   24   23   21   30   22   27   26   29   19    20
  13  |    8   16    6    7   16    5   15   10    7   13    4 |    15   28   18   15   33   16   30   12   20   14    17
  14  |    7   17    6    8   16    6   17   13   11   13    4 |    21   24   25   19   30   21   27   21   25   18    20
  15  |   11   19   10   11   16    5   18   12    9   18    5 |    14   28   20   16   29   16   29   14   24   16    16
  16  |   13   18    6   11   15    4   17   10   11   22    4 |    17   22   21   19   30   17   25   15   20   15    16
  17  |   11   12    6    7   22    5   20    9   11   15    4 |    27   27   25   24   33   20   32   17   31   23    23
  18  |    9   16    8   13   13    6   15    6   14   27    4 |    20   24   25   24   23   22   25   21   21   21    20
  19  |   11   12    4    8   23    4   14    8   12   14    4 |    25   27   20   20   27   19   28   18   22   24    19
  20  |   12   15    8   15    9    4   14   11   12   27    4 |    16   20   16   27   17   16   21   17   18   21    15
  21  |    7   13    5   10   15    4   12    8   13   14    3 |    11   20   20   13   29   15   17   13   21   14    14
  22  |    8   14    4    9   13    5   14   17   14   40    4 |    24   26   28   25   31   27   31   30   23   33    25
  23  |   10   17    6   10   12    4   18   14   10   27    4 |    19   29   21   17   28   19   28   17   24   20    19
  24E |   23   30   21   26   28   21   26   29   64   33   12 |    85   85   87   84   86   84   82   78   92   78    81
  25  |   13   16    5    7   15    5   16   10   10   13    4 |    12   17   19   15   26   15   28   19   18   11    14
  26  |   10   13    4    9   11    4   11   10   10   15    3 |    12   19   13   12   18   12   22   11   22   17    12
 X27  |    9  ---  ---  ---  ---   80  ---  ---  ---  ---    0 |    61  ---  ---  ---  ---   50  ---  ---  ---  ---    60
  28  |   11   14    5    5   17    4   15   15   13   17    4 |    18   28   21   17   31   20   28   21   22   15    19
  29  |   20   18    7    6   17    3   21   14   10   13    5 |    17   28   21   18   28   19   30   17   24   22    18
  30  |   11   11    6   11   12    4   11    7    8   21    3 |    28   27   29   29   29   27   28   26   31   29    26
  31E |    9   16    7    8   16    4   13   11   12   11    4 |    12   21   19   14   24   15   22   12   23   12    13
  32  |   12   15    8   10    9    6   13   49   11   56    7 |    15   22   18   19   75   17   23   49   15   46    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   17    7   10   17    6   16   15   17   22      |T   23   27   24   22   30   22   28   22   26   23    22
 WRMS |   11   16    6    8   15    5   15   11   10   18      |NE  19   24   21   18   28   19   26   19   22   21    19
 MEDI |   11   16    6    8   15    4   14   11   12   16      |MD  19   26   21   19   29   19   28   18   23   21    19

Table 3.1727.6   GPS week: 1727   Day: 6   MJD: 56339.000                            

        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   28    5    7   15    4   14   10   13   18    4 |    26   32   27   26   36   24   35   26   33   27    26
   2  |   14   19    5    8   15    5   12   13   14   14    4 |    23   29   24   20   35   21   29   19   28   20    23
   3  |    7   14    6    7   13    4   10   14   12   12    3 |    19   26   21   18   25   17   27   18   24   19    20
   4  |   13   17    8   10   16    5   17    8   10   20    4 |    24   33   31   26   31   24   40   22   32   37    27
   5  |   12   19    7    9   13    6   17    9   12   23    4 |    25   29   27   31   36   26   31   30   28   24    26
   6  |    8   14    7    9   14    4   12   15   12   25    4 |    11   23   17   13   20   13   24   16   20   32    15
   7E |   10   18    7    7   17    5   19   12   10   12    4 |    18   24   17   18   30   14   25   15   24   14    17
   8E |   18   23    8   11   21    5   18   16   22   29    6 |    35   49   35   40   46   36   44   38   47   33    38
  X9E |   21   29   11   11   27    8  ---   26   31   31    8 |    46   44   39   40   40   38  ---   45   42   46    38
  10  |   11   12    4    6   12    4   10   17   10   14    3 |    16   12    9   10    8   10   11   15    9    5    10
  11E |    7   15    4    6   12    4   13    7   10   21    3 |    23   31   24   22   35   23   28   21   29   21    24
  12  |   18   19    6    9   19    4   16   12   13   22    5 |    34   31   28   30   38   24   35   31   31   26    29
  13  |    8   20    7    7   16    5   16   12    5   17    4 |    21   34   19   19   34   17   35   18   23   17    21
  14  |   11   23    7   11   13    3   19   13   15   15    5 |    25   28   23   23   32   21   30   22   27   20    22
  15  |   12   20    9   11   16    5   17   13    8   22    4 |    17   29   19   20   31   17   30   18   24   19    19
  16  |   11   19    8    8   16    5   20    9   14   21    4 |    18   25   26   24   34   21   27   23   24   22    21
  17  |   11   18    5   11   21    4   20   10   10   13    4 |    33   36   28   24   37   25   38   27   30   32    28
  18  |   11   21    8   12   13    4   16    8    9   26    4 |    27   23   26   32   29   24   24   25   26   22    25
  19  |   10   13    5   10   16    4   15   10    7   15    3 |    26   29   22   21   29   21   31   22   27   28    23
  20  |    8   18    8   13   11    4   16   10   12   29    4 |    25   25   18   33   25   21   26   26   20   32    22
  21  |    9   18    7   10   12    5   10    8   13   17    4 |    16   22   17   16   28   14   20   15   20   17    15
  22  |   11   19    7   10   12    4   16   21   10   40    4 |    36   27   33   36   37   32   32   36   29   39    32
  23  |   10   20    7    8   12    3   16   13    6   29    4 |    25   34   21   21   28   20   32   22   25   23    23
  24E |   15   29   17   24   36    9   23   22   28   30    9 |   107  111  104  100  102  103  100  108  109  106   103
  25  |   15   19    7    8   17    4   15   11   10   14    4 |    14   21   23   18   31   18   31   25   17   14    18
  26  |    9   14    4   10   14    4   12    8   12   16    3 |    14   20   14   13   22   12   23   13   18   18    14
 X27  |    8  ---  ---  ---  ---   44  ---  ---  ---  ---    0 |    24  ---  ---  ---  ---   37  ---  ---  ---  ---    27
  28  |   12   17    6    7   18    3   15   16   14   19    4 |    24   33   29   29   36   27   32   34   28   26    27
  29  |   21   20    7    8   15    4   17   13   10   13    5 |    21   32   25   26   27   24   36   23   26   28    24
  30  |    8   12    6    7   13    3   11    7    8   20    3 |    24   27   29   28   34   26   30   28   28   31    27
  31E |   10   16    7    8   13    4   15    8    9   10    4 |    19   21   21   16   26   17   23   14   23   13    17
  32  |    8   14    6    8   10    4   11   27    7   35    4 |    21   24   25   22   45   22   28   44   23   46    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   19    7   10   16    5   16   13   12   22      |T   26   31   26   26   33   24   31   27   28   27    25
 WRMS |   12   18    7    9   14    4   15   11    9   19      |NE  22   27   23   23   30   21   29   23   24   24    22
 MEDI |   11   19    7    9   15    4   16   12   10   20      |MD  24   29   24   23   32   21   30   23   26   24    23



Table 4: Precise Navigation Summary.

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

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

Table 4.1727   GPS week: 1727   MJD: 56333.0-56339.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3014 |U    4     4     9 |U   11    11    33 |U    6     5    15 |
emr | emr 2954 |     5     5    15 |U   11    12    36 |     8     7    16 |
esa | esa 2962 |     5     5    11 |U   11    12    34 |     6     5    15 |
gfz | gfz 2953 |U    6     5    12 |U   11    12    34 |U    7     6    17 |
grg | grg 2962 |U    7     7    20 |U   12    11    38 |     9     8    21 |
igr | igr 2960 |     5     5    11 |    10    11    33 |     6     5    16 |
igs | igs 2959 |     5     4    11 |    11    11    33 |     6     5    16 |
jpl | jpl 2861 |     7     5    13 |U   12    13    39 |U    7     7    16 |
mit | mit 2962 |     6     4    11 |U   11    11    36 |U    8     7    19 |



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 5.1727.0   GPS week: 1727   Day: 0   MJD: 56333.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3030 |     4     3     9 |     9     9    35 |     5     6    11 |
emr | emr 2968 |     5     6    16 |     9    11    39 |    10     6    13 |
esa | esa 2976 |     4     4    11 |     9     9    33 |     5     6    14 |
gfz | gfz 2967 |     6     5    15 |     9    10    35 |     6     6    14 |
grg | grg 2976 |     6     7    16 |     9    11    38 |     8     7    17 |
igr | igr 2976 |     3     4    11 |     8     9    33 |     6     6    15 |
igs | igs 2973 |     5     4    12 |     9     9    34 |     6     6    13 |
jpl | jpl 2875 |    15     7    19 |     9    12    34 |     6     5    14 |
mit | mit 2976 |     5     4    10 |     9     9    35 |    10    11    17 |

Table 5.1727.1   GPS week: 1727   Day: 1   MJD: 56334.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3027 |     4     3    10 |    15    13    37 |     6     5    18 |
emr | emr 2968 |     6     5    16 |    17    15    43 |     8     7    16 |
esa | esa 2976 |     7     4    12 |    15    13    40 |     7     7    18 |
gfz | gfz 2969 |     7     4    13 |    16    12    40 |     6     7    18 |
grg | grg 2976 |     8     5    17 |    18    12    36 |     8     7    23 |
igr | igr 2976 |     5     4    12 |    15    13    39 |     6     6    18 |
igs | igs 2975 |     6     3    13 |    16    13    40 |     6     7    20 |
jpl | jpl 2875 |     5     4    12 |    17    16    48 |     8     7    19 |
mit | mit 2976 |     7     3     9 |    16    12    46 |     8     8    23 |

Table 5.1727.2   GPS week: 1727   Day: 2   MJD: 56335.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3018 |     4     4     9 |    12    10    42 |     5     3    11 |
emr | emr 2967 |     5     5    15 |    12    12    46 |     7     5    15 |
esa | esa 2975 |     5     5    10 |    11    10    40 |     5     5    12 |
gfz | gfz 2967 |     5     5    11 |    12    11    44 |     6     5    19 |
grg | grg 2974 |     7     6    16 |    12    10    40 |     9     8    17 |
igr | igr 2960 |     4     5    10 |    11     9    39 |     5     4    11 |
igs | igs 2968 |     5     5    10 |    11    11    41 |     6     4    15 |
jpl | jpl 2875 |     4     5    10 |    12    11    45 |     7     5    14 |
mit | mit 2976 |     6     4    11 |    11    11    38 |     7     5    18 |

Table 5.1727.3   GPS week: 1727   Day: 3   MJD: 56336.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2937 |     5     4    10 |     8     9    27 |     7     4    15 |
emr | emr 2872 |     5     6    13 |     9     8    30 |    12    10    20 |
esa | esa 2880 |     5     5    12 |     8     7    33 |     7     4    14 |
gfz | gfz 2870 |     5     5    11 |     8     6    31 |     9     7    21 |
grg | grg 2880 |    10     9    29 |     9     9    37 |     9     8    23 |
igr | igr 2880 |     5     5    10 |     8     8    32 |     7     4    14 |
igs | igs 2878 |     5     5    11 |     8     7    31 |     9     6    20 |
jpl | jpl 2780 |     7     6    12 |     8     8    28 |    11     8    18 |
mit | mit 2880 |     5     5    10 |     8     7    35 |     9     8    24 |

Table 5.1727.4   GPS week: 1727   Day: 4   MJD: 56337.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3030 |     5     7    11 |    17    17    37 |     5     6    15 |
emr | emr 2968 |     6     7    21 |    18    17    36 |     7     6    18 |
esa | esa 2976 |     6     7    15 |    16    16    34 |     6     6    14 |
gfz | gfz 2968 |     6     8    16 |    18    18    35 |     7     6    19 |
grg | grg 2976 |     8    11    26 |    16    16    47 |     9    11    19 |
igr | igr 2976 |     5     7    15 |    16    16    33 |     6     5    13 |
igs | igs 2974 |     5     6    15 |    17    16    34 |     6     5    17 |
jpl | jpl 2876 |     5     6    16 |    19    17    53 |     7     6    10 |
mit | mit 2976 |     8     6    15 |    18    16    39 |    10     7    22 |

Table 5.1727.5   GPS week: 1727   Day: 5   MJD: 56338.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3037 |     3     2     7 |     6    11    24 |     5     4    18 |
emr | emr 2968 |     5     5    14 |     7    11    27 |     6     7    17 |
esa | esa 2976 |     5     4     9 |     7    12    27 |     5     4    15 |
gfz | gfz 2968 |     5     5    10 |     7    11    27 |     5     4    15 |
grg | grg 2976 |     6     6    22 |     8    11    37 |     9     8    24 |
igr | igr 2976 |     5     3     9 |     7     9    27 |     5     4    19 |
igs | igs 2974 |     4     4    10 |     7    11    26 |     5     4    16 |
jpl | jpl 2876 |     6     4    11 |     9    11    39 |     4     4    19 |
mit | mit 2976 |     4     4     9 |     7    10    27 |     6     4    16 |

Table 5.1727.6   GPS week: 1727   Day: 6   MJD: 56339.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3023 |     4     3     9 |     9    12    30 |     7     6    16 |
emr | emr 2968 |     5     5    11 |     7    11    29 |     9     6    15 |
esa | esa 2976 |     4     5     9 |     8    13    29 |     8     5    18 |
gfz | gfz 2968 |     5     5    10 |     9    14    28 |     8     6    15 |
grg | grg 2976 |     6     4    18 |    10    10    30 |     9     5    26 |
igr | igr 2976 |     5     5     8 |     8    12    30 |     7     5    20 |
igs | igs 2973 |     4     4     9 |     8    12    28 |     7     5    15 |
jpl | jpl 2875 |     5     5    11 |     9    16    30 |     9    11    20 |
mit | mit 2976 |     5     4    11 |     8    11    28 |     8     5    15 |


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 6.1727   GPS week: 1727   MJD: 56333.500-56339.500

                                                         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 |     -59      -3    -112    -219      4 |      -4     17
            |      31      24      69      65     11 |       4
emr   uuuxu |      45     -27     125     495     -9 |       9     19
            |      14      28     119      29      6 |       2
esa   uuuuu |     -17     -28      -8    -128      4 |       1     16
            |      34      36      56      62      5 |       3
gfz   uuuuu |      21      27      21      26      3 |       0     14
            |      49      23      56      79      6 |       4
grg   uuuux |       1       1      10      30    -43 |      13     37
            |      22      17      62      46     41 |       6
igr   xxxxx |     -46      20     -11      43      2 |       0     14
            |      16      22      47      58      7 |       3
irf   xxxxx |       4      -8     -32      79      4 |       1     15
            |      17      14      27      36      6 |       3
jpl   uuuuu |      19       7     103     270     16 |      41     45
            |      19      17      85      97     12 |       9
mit   uuuuu |      25     -14    -142     170      4 |       5     17
            |      24      28      60      54      8 |       3
ngs   uuuuu |      -8      49      61      45     -3 |       3      8
            |      53      31      95     178      7 |       2
sio   xxxxx |      59      10      44      29     19 |      20     28
            |      76      83      94      30      8 |       7


Table 7.1727.0   GPS week: 1727   Day: 0   MJD: 56333.500

                                                         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 |    -105       0     -84    -299     -2 |      -4     15
emr   uuuxu |      24     -20     274     516     -4 |      13     23
esa   uuuuu |      53     -41       1    -222     -2 |       1     14
gfz   uuuuu |     -80      50     -89     -74      3 |      -3     12
grg   uuuux |     -22      15     -12       2    -10 |      10     37
igr   xxxxx |     -63      55      50     108     -5 |       0     13
irf   xxxxx |     -24      10     -60      59     -2 |      -1     12
jpl   uuuuu |       4       6     177     393     -1 |      34     38
mit   uuuuu |      29       7    -219     235     -3 |       1     14
ngs   uuuuu |      40      32      57     335      2 |       2      8
sio   xxxxx |      73      86      66     -22     13 |      14     20

Table 7.1727.1   GPS week: 1727   Day: 1   MJD: 56334.500

                                                         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 |     -52       6    -122    -205     -9 |      -5     15
emr   uuuxu |      44     -28     145     488      1 |      11     21
esa   uuuuu |     -12     -85      -6    -148      1 |       0     14
gfz   uuuuu |      43      60      74      17      4 |      -3     12
grg   uuuux |       9       2       3     -44      2 |      11     37
igr   xxxxx |     -54      39     -36      38      1 |      -2     13
irf   xxxxx |      -5      -2     -57      33     -1 |      -2     12
jpl   uuuuu |      10      26      66     272      2 |      34     37
mit   uuuuu |      -1       0    -201     151     -4 |       2     13
ngs   uuuuu |     -17      81      42     118      1 |       1      7
sio   xxxxx |     124    -110      96      10     13 |      14     20

Table 7.1727.2   GPS week: 1727   Day: 2   MJD: 56335.500

                                                         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 |     -77     -29     -46    -281      3 |      -9     15
emr   uuuxu |      33     -77     283     453     -7 |       7     16
esa   uuuuu |      -8      29     -54    -176      8 |      -3     12
gfz   uuuuu |      19      14      21     136      7 |      -4     11
grg   uuuux |      20     -11     -53      72    -25 |      14     36
igr   xxxxx |     -31      19     -97      28      4 |      -4     11
irf   xxxxx |      -4     -29     -36      58      7 |      -3     12
jpl   uuuuu |       7     -21     -30     284     14 |      32     35
mit   uuuuu |       1     -72     -68     152      5 |       2     13
ngs   uuuuu |      14      79      48     -27     -6 |       0      6
sio   xxxxx |      18     -39     139      30     23 |      13     18

Table 7.1727.3   GPS week: 1727   Day: 3   MJD: 56336.500

                                                         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 |      -2      10    -150    -211     23 |      -7     16
emr   uuuxu |      54     -43     128     539     -9 |       8     17
esa   uuuuu |     -28     -34      11    -138      9 |      -1     15
gfz   uuuuu |      42      33      18      18     10 |      -2     14
grg   uuuux |       1      15      31      31    -86 |      22     30
igr   xxxxx |     -50       6      23       3     10 |      -1     13
irf   xxxxx |      20      -8      16     110     12 |      -1     14
jpl   uuuuu |      34      -2      86     131     30 |      38     41
mit   uuuuu |      51     -28     -59     220     13 |       4     16
ngs   uuuuu |     -97      51       4     171    -16 |       1      8
sio   xxxxx |      42     -36     114      57     33 |      17     25

Table 7.1727.4   GPS week: 1727   Day: 4   MJD: 56337.500

                                                         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 |     -61     -29    -239    -257     -4 |       0     20
emr   uuuxu |      42     -26      45     471    -11 |       9     18
esa   uuuuu |     -38      -4     -28     -82     -3 |       4     18
gfz   uuuuu |      74       0      55     128     -8 |       4     17
grg   uuuux |     -15     -11      -7      94   -103 |      18     32
igr   xxxxx |     -30       9       2     109     -9 |       3     17
irf   xxxxx |      23     -20     -34     114     -5 |       4     18
jpl   uuuuu |       1      -5     142     151     15 |      45     51
mit   uuuuu |      60     -13    -148     176     -5 |       9     21
ngs   uuuuu |     -46      78     265    -105      6 |       4      8
sio   xxxxx |     187     129      -6      58      9 |      24     35

Table 7.1727.5   GPS week: 1727   Day: 5   MJD: 56338.500

                                                         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 |     -66      36    -107    -152     15 |       0     20
emr   uuuxu |      59      11       8     485    -12 |       9     18
esa   uuuuu |     -44     -45     -77     -37      6 |       5     18
gfz   uuuuu |      28      26      69     -19      0 |       4     17
grg   uuuux |      35     -25     137      13    -60 |      10     40
igr   xxxxx |     -31      26     -16      67      6 |       3     17
irf   xxxxx |      14       6     -40     124      7 |       4     18
jpl   uuuuu |      53      24     223     344     29 |      50     55
mit   uuuuu |      28       0    -150     181     10 |       8     20
ngs   uuuuu |     -12       9      47    -192     -6 |       6     10
sio   xxxxx |      11      54      40      51     22 |      26     37

Table 7.1727.6   GPS week: 1727   Day: 6   MJD: 56339.500

                                                         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 |     -50     -17     -35    -127      0 |       1     20
emr   uuuxu |      61      -4      -7     515    -18 |       6     16
esa   uuuuu |     -41     -18      96     -96      8 |       5     18
gfz   uuuuu |      21       5       0     -24      7 |       4     17
grg   uuuux |     -22      23     -29      41    -17 |       4     43
igr   xxxxx |     -66     -10      -4     -53      7 |       3     17
irf   xxxxx |       0     -11      -9      56      8 |       4     18
jpl   uuuuu |      23      20      56     314     22 |      54     59
mit   uuuuu |       7       6    -146      71     11 |       8     20
ngs   uuuuu |      58      15     -34      13     -1 |       5     10
sio   xxxxx |     -40     -13    -139      17     19 |      29     39



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