[IGSREPORT-21894] Wk 1742 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Jun 14 07:58:39 PDT 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1742   (May 26, 2013 - Jun 01, 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:

igs1742[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1742[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1742[0-6].cls  IGS GPS clock combination summary report.
igs17427.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17427.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   | KOUC
                0  |  EMR   | FAIR
                0  |  ESA   | KOUC UNSA
                0  |  GFZ   | ABPO MAW1
                0  |  GRG   | KOUC DAV1 KOUC MAW1 NRMD TRO1 URUM
                0  |  JPL   | ABPO
                0  |  MIT   | 19 31 16 19 31 DAV1 KOUC MAC1 DAV1 MAC1 MAW1
                1  |  COD   | DAV1 JOZ2 DAV1 JOZ2 MOBS
                1  |  ESA   | ONSA NTUS ONSA UNSA
                1  |  GFZ   | 23
                1  |  GRG   | ADIS LHAZ MAW1 NTUS
                1  |  JPL   | 23
                1  |  MIT   | 23 4 23 DAV1 MDVJ
                2  |  COD   | KOUC REYK XMIS
                2  |  EMR   | MCM4 MCM4
                2  |  ESA   | WES2 KOUC UNSA WES2
                2  |  GRG   | 6 6 DAV1 DAV1 IRKT
                2  |  MIT   | 31 31 DAV1 MAC1 MDVJ REYK
                3  |  COD   | ALRT KOUC WHIT ALRT KOUC
                3  |  ESA   | KOUC WHIT KOUC UNSA WES2
                3  |  GFZ   | IRKJ
                3  |  GRG   | FAA1 FAA1 LHAZ WHIT
                3  |  MIT   | MDVJ MDVJ
                4  |  COD   | KOUC KOUC XMIS
                4  |  ESA   | KOUC KOUC MATE UNSA
                4  |  GFZ   | IRKJ LHAZ
                4  |  GRG   | PDEL USN3 PDEL TRO1 USN3
                4  |  JPL   | 21
                4  |  MIT   | 3 8 16 3 8 16 MDVJ MDVJ
                5  |  COD   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  COD   | 21 22 23 24 25 26 28 29 31 32 1 2 3 4 5 6 7 8 9 10
                5  |  COD   | 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28
                5  |  COD   | 29 31 32
                5  |  EMR   | ONSA
                5  |  ESA   | ONSA UNSA
                5  |  GFZ   | IRKJ MATE
                5  |  GRG   | 21 21 MATE LHAZ
                5  |  MIT   | 3 5 18 3 5 IRKJ KOUC MDVJ IRKJ MDVJ NRC1
                6  |  COD   | KOUC KOUC
                6  |  EMR   | SCH2 WES2 MCM4 QAQ1 SCH2 WES2
                6  |  ESA   | HOFN KOUC UNSA
                6  |  GFZ   | 21 23 BRFT FAIR HOFN IRKJ NTUS
                6  |  GRG   | REYK KARR KOUC NRMD REYK
                6  |  JPL   | 23 SCH2 YELL
                6  |  MIT   | 10 21 23 10 21 23 CAS1 DAV1 NTUS CAS1 DAV1 GLSV HOFN
                6  |  MIT   | KOSG MDVJ NTUS

 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 G27 |    |    |    |    |    |  4 |  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 |     .1    -.2   -1.1     -36      6      2     .21
       EMR  |   0 |    1.2   -2.1   10.6      -8     15    -28     .32
       ESA  |   0 |    3.2   -5.9    5.5      23     -2    -48    -.04
       GFZ  |   0 |   -1.0     .2    -.2     -25    -13    -32    -.21
       GRG  |   0 |     .0    -.6   24.2     -49     58    -30     .35
       JPL  |   0 |   -2.8   -5.8   13.0       3     49     13     .47
       MIT  |   0 |     .2   -1.8   13.8      -7      7    -50     .13
       NGS  |   0 |    5.1   -1.8   19.6    -123    -82     41     .40
       SIO  |   0 |     .4   -5.4  -48.0    -147   -281   -237     .21

       COD  |   1 |     .1     .8    -.2     -40     19    -48     .13
       EMR  |   1 |   -2.6    -.2   13.1      10     16    -14     .26
       ESA  |   1 |   -5.3   -2.5    8.6      15     14    -45     .13
       GFZ  |   1 |   -1.1     .2   -1.0     -14    -11    -25     .20
       GRG  |   1 |    3.9     .5   29.1     -50     33    -54     .33
       JPL  |   1 |  -10.1   -7.5   16.1     -31     16     37     .39
       MIT  |   1 |     .5    2.0   17.8      -5     -5    -42     .05
       NGS  |   1 |   -1.3   -2.2   11.3     -87    -33     -8     .73
       SIO  |   1 |   -3.2   -3.6  -52.1    -126   -260   -186     .25

       COD  |   2 |    -.3    -.7    -.7     -45      9    -25     .03
       EMR  |   2 |    -.7   -5.8    6.4       6      7    -19     .11
       ESA  |   2 |   -4.2    -.6    4.6      27      9    -50     .28
       GFZ  |   2 |    -.8    -.1   -1.1     -13    -20    -25    -.26
       GRG  |   2 |     .0   -2.2   29.4     -25     26    -16     .44
       JPL  |   2 |     .0   -3.8    9.2     -90      8     -4     .34
       MIT  |   2 |     .6     .4   15.5     -32    -18    -57     .0 
       NGS  |   2 |     .3    -.5   18.4    -116    -73      8     .44
       SIO  |   2 |   -4.6   -4.6  -54.6    -126   -178   -134     .30

       COD  |   3 |    -.3     .0    -.4     -41      7    -18     .19
       EMR  |   3 |    1.3   -4.3    1.2      -2     16    -27     .25
       ESA  |   3 |    -.1   -3.1    2.4      36      4    -50     .21
       GFZ  |   3 |   -1.1    -.3   -1.1     -16    -14    -23     .12
       GRG  |   3 |    5.7     .7   24.2     -12     57    -80     .19
       JPL  |   3 |    8.8   -1.6    4.2     -53      1     -2     .33
       MIT  |   3 |     .9     .9   15.5     -29    -17    -33     .15
       NGS  |   3 |   -1.3   -2.6   10.6     -88    -26     -6     .48
       SIO  |   3 |   -3.5   -5.3  -62.3     -74   -191    -46     .33

       COD  |   4 |     .5     .5    -.1     -37     -1    -21    -.0 
       EMR  |   4 |    4.1   -4.2   11.1       1     18    -28     .11
       ESA  |   4 |     .2   -5.6    5.8      36     16    -46     .01
       GFZ  |   4 |    -.7     .3    -.8      -7    -11    -25    -.31
       GRG  |   4 |    6.6   -5.4   39.1     -16     39    -17     .03
       JPL  |   4 |    5.7   -5.5    9.3     -44      1     10     .53
       MIT  |   4 |    1.5    1.5   17.5      -7     -2    -36     .02
       NGS  |   4 |    4.3   -3.2   22.0    -130    -71     17     .37
       SIO  |   4 |   -1.1   -2.0  -81.0     -62   -249     42     .10

       COD  |   5 |     .5    1.2    -.7     -28    -17    -27     .22
       EMR  |   5 |    3.8   -3.9    6.7      14     16      0     .19
       ESA  |   5 |     .2     .2    8.1      55      2    -40     .05
       GFZ  |   5 |    -.4     .2    -.5     -10    -26    -27    -.24
       GRG  |   5 |    4.4     .2   33.8      -2     25    -10     .25
       JPL  |   5 |   -2.3   -1.8    8.3     -13     -3     12     .50
       MIT  |   5 |    1.1    1.4   16.6     -35    -16    -43     .21
       NGS  |   5 |   -4.4   -8.9   24.6    -182    -15    -55     .61
       SIO  |   5 |   -1.2   -6.0  -85.9    -123   -317    161     .03

       COD  |   6 |     .1    1.0    -.5     -36     -5    -35     .24
       EMR  |   6 |     .5   -9.1    2.2      -3     17    -22     .46
       ESA  |   6 |    1.4    1.9    5.6      68     -9    -49     .20
       GFZ  |   6 |    -.6     .2    -.6     -29    -22    -23     .08
       GRG  |   6 |    3.2     .9   30.0     -37     56    -43     .33
       JPL  |   6 |    2.5   -3.4    6.9     -34    -13    -44     .38
       MIT  |   6 |    4.7   -2.5   19.0      -4     -5    -39     .17
       NGS  |   6 |    3.8   -3.9    6.5     -62    -42     23     .57
       SIO  |   6 |   -2.6   -3.8  -68.4    -113   -265     78     .19


 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 1.1742.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1742.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 2.1742.[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 3.1742.[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 5.1742.0-6). 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 1742 summary.                       (May 26, 2013 - Jun 01, 2013)

Table 1.1742.a   GPS week: 1742   MJD: 56438.000-56444.000

         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  270|    0     0    -6     7    11     4  -.47   10   10 |    -961    -156    449    507
        |    0     0     1    12    27    17   .05           |     270     367
emr   80|    0    -1    -3    -7   -21     5   .35   13   13 |    2223    -762     15     95
        |    0     1     1    18    16    12   .01           |    1057    1256
esa  150|    0     0     2     7    11   -12   .11    6    6 |    -246    -874     14    109
        |    0     0     0    14    17    11   .03           |     754    1186
gfz  197|   -1     0    -1   -11     0     5  -.40    9    9 |     139    -349     17    108
        |    0     0     0    17    67     4   .04           |     660     774
grg  139|    2     2    14    -3    35   -20   .53   16   14 |      65    -348     17    145
        |    0     1     3    19    19    20   .08           |     305     597
igr  n/a|    0     0    -2    14    32   -19  -.14    4    4 |    3028    -575     16     83
        |    0     0     0    10    10     6   .04           |     921    1193
jpl   80|    1     1    -7    19   -29     4   .39   14   14 |    2545    -823     17    114
        |    2     1     0    27    40    30   .02           |    1169    1202
mit  233|    0     0     2     5   -22     8  -.55   12   11 |     760    -456     23    207
        |    1     0     1    19    15    13   .03           |    2008     691
ngs  240|    0     0     0   -23    18     3   .32    9    8 |   -1016    -193   1791   3498
        |    0     0     3    24    26    24   .06           |     284     437
sio  385|   -2     1    -6  -131  -254   -58  -.37   21   21 |     ---     ---    ---    ---
        |    1     0     1    26    39   154   .04           |     ---     ---


Table 1.1742.b   GPS week : 1742   MJD: 56438.000-56444.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         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 2.1742.0   GPS week: 1742   Day: 0   MJD: 56438.000                            

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  263|   -1     0    -5     8    27    27  -.45   10   10 |    -622    -690     19     76
emr   80|    0     0    -1    17   -17    13   .37   13   13 |    2902   -1829     16     92
esa  150|    1    -1     1    16    33   -13   .11    6    6 |     488    -162     16    110
gfz  192|    0     0     0   -31   -46     9  -.42    8    8 |    1064   -1013     17    121
grg  139|    2     4     8    20    44   -28   .60   16   13 |     434   -1106     16    132
igr  n/a|    0     0    -3    23    41   -19  -.10    4    4 |    3128   -1432     17     85
jpl   80|    1     0    -7    38    33    11   .41   15   14 |    3556   -1895     18    123
mit  237|    1     0     2    -8    -4     0  -.53   10    9 |     300    -883     24    192
ngs  236|    0     0     2   -48   -32   -13   .39   10    8 |    -597    -826   1695   3793
sio  368|   -1     1    -8  -164  -284  -254  -.34   21   18 |     ---     ---    ---    ---

Table 2.1742.1   GPS week: 1742   Day: 1   MJD: 56439.000                            

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  269|    0     0    -4    16     9     9  -.41   11   10 |    -962    -148     18     76
emr   80|    1     0    -1   -31   -29     0   .35   13   13 |    1913     456     18     86
esa  150|    0     0     1   -13    19     4   .15    6    6 |     703   -2150     15    114
gfz  197|   -2     0    -1     5   -30     6  -.34    9    9 |     250     431     17    100
grg  138|    1     1    13   -11    20   -20   .55   16   14 |    -350     214     18    174
igr  n/a|    0     0    -2    21    21   -15  -.10    4    4 |    2556     736     17     84
jpl   80|    5     0    -7    11   -11    27   .38   14   14 |    2487     428     18    109
mit  237|    0     0     4    23   -28    -9  -.53    9    8 |    -350     386     24    215
ngs  239|    0     0    -2   -13    40   -23   .35   10    9 |    -825    -443   1796   3698
sio  371|   -4     1    -5  -138  -288  -202  -.34   20   18 |     ---     ---    ---    ---

Table 2.1742.2   GPS week: 1742   Day: 2   MJD: 56440.000                            

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  275|    0     0    -7     0    32    26  -.50   10   10 |   -1313     341     19     85
emr   80|    0    -1    -3   -12     3    -5   .36   13   13 |    2570    -256     13     91
esa  150|    1     0     2    19    19   -34   .13    6    6 |    -495   -1178     18    103
gfz  192|    0     0    -2    -3   -37    -2  -.37    8    9 |     617    -961     17    114
grg  141|    2     3    14   -20    12    21   .59   17   15 |    -122     146     17    141
igr  n/a|    0     0    -1    16    43   -27  -.10    4    4 |    3526    -267     16     84
jpl   80|    0     0    -8   -25     6    41   .37   15   15 |    3197    -540     17    103
mit  239|    0     0     2    13   -38    14  -.51   10    9 |     -13      74     23    165
ngs  239|    0     0     2   -19     5    -4   .37    9    8 |   -1351     326   2032   3971
sio  389|   -3     2    -5  -146  -196  -148  -.34   20   20 |     ---     ---    ---    ---

Table 2.1742.3   GPS week: 1742   Day: 3   MJD: 56441.000                            

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  274|    0     0    -5    23   -23    -1  -.50   10    9 |    -887    -289     20     97
emr   80|    0    -3    -4    14   -21    22   .35   14   14 |    2084     486     16     99
esa  150|    1     0     3     6    -9   -10   .06    5    5 |      97   -1825     13    114
gfz  199|    0     0    -1   -35    68     1  -.39    9    9 |     -59     -41     18    106
grg  141|    2     2    11     0    65   -47   .58   13   12 |     298    -620     17    149
igr  n/a|    0     0    -2    23    32    -9  -.19    4    4 |    2959     533     16     85
jpl   80|    0     1    -7     3   -33    28   .38   13   13 |    2355     468     17    115
mit  238|    1     1     3   -13   -44    12  -.57   12   11 |     289    -721     24    233
ngs  242|    0     0    -2    -5    32    -7   .29   10    9 |    -926    -296   1854   2886
sio  386|   -4     1    -6  -108  -213   -65  -.40   21   24 |     ---     ---    ---    ---

Table 2.1742.4   GPS week: 1742   Day: 4   MJD: 56442.000                            

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  274|    0     0    -8   -13   -28    -3  -.53    9    9 |   -1130     -18     18     93
emr   80|    0    -2    -4    -8   -46    18   .35   13   13 |    2991    -904     18    101
esa  150|    0     0     2    -4   -13   -10   .10    6    6 |   -1051    -524     12    109
gfz  200|    0     0    -1    -5   112     8  -.47   11   11 |    -352    -695     17    109
grg  141|    2     1    16   -31    50   -21   .54   15   13 |     216   -1125     22    153
igr  n/a|    0     0    -3    -1    15   -19  -.17    4    4 |    3658    -584     16     74
jpl   80|    0     0    -6    55   -77    -5   .38   12   12 |    3085    -895     17     99
mit  234|    0     0     1    17   -11    -1  -.56   15   14 |       9    -333     24    202
ngs  239|    0     0     3     6    34    -1   .23    9    9 |   -1236      54   1583   3335
sio  384|   -3     2    -6   -93  -251    27  -.42   22   23 |     ---     ---    ---    ---

Table 2.1742.5   GPS week: 1742   Day: 5   MJD: 56443.000                            

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  272|    0     1    -7    14    21    -9  -.47    9    9 |    -624    -495   3033   3043
emr   80|    0    -2    -6    -7   -31    -6   .33   13   13 |    3054   -2959     14     98
esa  150|    0     0     1    26     8    -9   .11    6    6 |    -150   -1576     12    102
gfz  203|   -2     0    -1   -13    13     5  -.40    9    9 |     403   -1037     18    117
grg  138|    3     3    18    20    17   -22   .44   16   14 |     245    -125     16    132
igr  n/a|    0     0    -3    15    37   -26  -.18    3    3 |    4097   -2739     16     81
jpl   80|    1     1    -7    43   -56   -36   .36   14   14 |    3072   -2847     19    129
mit  220|    0     0     0   -22   -19    30  -.58   15   14 |    5284   -1661     23    234
ngs  244|   -1     0     5   -63     9    29   .29    8    8 |    -871    -484   1633   3307
sio  395|   -3     1    -9  -155  -300   179  -.44   23   23 |     ---     ---    ---    ---

Table 2.1742.6   GPS week: 1742   Day: 6   MJD: 56444.000                            

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|   -1     0    -5     2    41   -18  -.40   10    9 |   -1192     202     20     80
emr   80|    0    -3    -4   -25    -9    -5   .33   14   14 |      47    -330     15     99
esa  150|    0     0     3     1    21    -9   .12    5    5 |   -1314    1295     13    111
gfz  201|   -1     0     0     6   -75     6  -.41    8    8 |    -945     870     18     89
grg  139|    3     0    19    -2    36   -28   .38   17   16 |    -264     179     16    136
igr  n/a|    0     0    -1     2    37   -18  -.14    4    4 |    1277    -277     16     88
jpl   80|    0     4    -6     9   -64   -32   .41   14   14 |      66    -483     19    120
mit  231|    3     0     3    26    -8    14  -.59   14   13 |    -198     -56     22    210
ngs  243|    0    -1    -4   -17    40    46   .30   10    9 |   -1306     316   1948   3501
sio  407|    0     1    -3  -114  -244    50  -.35   22   20 |     ---     ---    ---    ---

       
       
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 3.1742.0   GPS week: 1742   Day: 0   MJD: 56438.000                            

        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    8    5   13   10    4   17    6   11   24    4 |    44   56   53   52   62   49   60   52   52   36    51
   2  |    9   10    6    7   12    4   12   15    7   31    3 |    25   26   29   30   35   26   26   32   31   24    28
   3  |    7    8    5    6   11    3   10   14    9   22    3 |    26   27   27   27   27   26   28   26   33   30    25
   4  |    9    8    5    8   13    3    9    9    7   30    3 |    35   33   36   39   44   34   31   41   37   34    36
   5  |   10   16    6   11   15    3   16   11    7   17    4 |    18   28   19   26   31   17   25   21   23   18    20
   6  |    9    9    4    9    9    4   12   11    8   22    3 |    15   19   13   17   20   13   19   16   21   21    13
   7  |    7   11    6    8   22    4   11   12   11   34    4 |    28   30   27   26   39   26   28   27   33   34    26
   8  |   10    9    5    6   19    3    9   12   10   16    3 |    16   20   19   20   25   18   22   21   21   16    17
   9  |    9   10    6    6   14    3   11    9    7   22    3 |    25   28   27   28   26   25   29   22   30   27    25
  10  |   10    8    4    7   13    4   10    8   12   20    3 |    18   23   21   20   28   18   22   21   27   24    20
  11  |    7   10    5    8   10    4   11    7    8   16    3 |    31   39   32   32   47   31   36   35   32   27    33
  12E |   12   17    6   13   20    6   22   15    9   19    5 |    31   31   26   32   29   27   30   20   31   21    26
  13  |   11   12    7    9   24    2   11    7   10   14    4 |    26   31   28   25   43   24   30   25   26   26    26
  14  |    9   15    5    5   16    5   13    8   12   19    3 |    24   29   22   19   34   21   24   18   29   23    22
  15E |   12   21    7   12   13    5   21    9   12   13    5 |    20   31   24   24   30   17   27   20   25   22    21
  16E |    9   14    5    8   20    4   16   12    8   14    4 |    17   22   22   27   24   20   23   23   28   21    21
  17  |   12   15    8    9   17    5   16    9    7   26    4 |    21   26   22   24   32   21   25   18   26   19    20
  18  |    9   13    5    5   16    3   20   10    8   20    3 |    23   28   25   22   36   23   28   27   31   24    23
  19  |    7   16    7    9   14    4   18   16    9   25    4 |    13   25   14   15   31   13   26   20   25   24    16
  20  |   12   11    6    9   15    5   13   10   10   13    3 |    23   28   23   25   36   21   25   24   27   18    23
  21  |    9   11    5    6   11    3   15    9    7   36    3 |    23   31   26   25   34   25   30   29   27   36    25
  22  |    8   12    6    6   13    3   16    8    9   17    3 |    22   29   27   24   40   26   28   28   33   26    25
  23  |   10   13    6    9   25    3   12    8   13   18    4 |    30   33   28   25   36   26   31   31   29   36    27
  24  |   12   12    5    9   14    4   15    5   13   12    4 |    24   26   22   20   30   21   29   20   23   22    20
  25E |   11   12    6    6   14    5   15    9   10   14    3 |    23   27   24   23   28   20   28   19   26   16    22
  26  |   11   12    7    5   13    4   12    8   10   23    3 |    18   27   24   25   24   19   23   24   27   27    22
  28E |    8   10    7    6   29    3    9    7    9   11    4 |    22   22   24   22   23   21   23   19   24   19    20
  29  |   14   18    7   10   11    3   24    8   13   19    4 |    27   41   30   31   33   29   44   28   35   34    31
 X30E |    8  ---  ---  ---  ---   48  ---  ---  ---  ---    0 |    44  ---  ---  ---  ---   40  ---  ---  ---  ---    43
  31  |   11   13    5    7   19    6   19    9    7   22    4 |    21   29   24   27   39   22   31   22   29   23    24
  32  |    8   10    5   10    8    5    9    9    9   17    3 |    20   26   18   20   27   18   26   18   23   20    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    6    8   16    4   15   10   10   21      |T   24   29   25   25   33   23   28   24   28   24    24
 WRMS |   10   13    6    8   13    4   14    9    8   18      |NE  23   29   25   26   34   23   29   26   29   25    24
 MEDI |    9   12    6    8   14    4   13    9    9   19      |MD  23   28   24   25   31   22   28   22   27   24    23

Table 3.1742.1   GPS week: 1742   Day: 1   MJD: 56439.000                            

        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  |    7    9    4   10   11    3   16    5   18   20    3 |    30   35   31   31   42   30   43   33   31   24    31
   2  |   11    9    5    8   15    4   11    9    8   29    3 |    19   22   21   23   26   20   24   25   19   23    21
   3  |    9   11    6    6   11    4   12    7   13   21    3 |    32   35   34   33   34   34   35   36   35   36    33
   4  |    9    8    5    9   16    3    8    6    8   27    3 |    28   26   24   30   31   24   26   35   21   33    26
   5  |    9   15    6    9   18    2   13    8    8   16    4 |    18   25   19   23   30   17   25   21   21   23    18
   6  |    9   13    6    8    9    4   12    8   10   19    3 |    18   20   17   18   20   17   19   19   23   21    15
   7  |   10   12    4    8   22    5   15   10    9   34    4 |    27   28   25   24   34   22   25   26   29   34    23
   8  |    9    9    4    6   15    4   12   13    8   17    3 |    23   26   22   24   21   21   24   30   25   27    22
   9  |    9   10    6    9   11    3   12    8    8   21    3 |    20   23   22   19   21   19   26   22   20   26    19
  10  |   10    9    4   10   15    4    9    7    9   17    3 |    21   25   17   23   22   17   25   24   18   26    18
  11  |    7   10    6   10   12    4    9    9   13   15    3 |    20   28   20   19   33   20   29   25   25   22    21
  12E |   15   19    6   11   28    5   24    8   10   14    5 |    19   27   20   22   26   19   27   20   22   18    18
  13  |   11   13    4    7   24    2   10    9    7   15    3 |    22   27   19   16   36   17   26   17   22   20    18
  14  |   10   13    5   10   14    4   13    6    8   15    3 |    18   21   18   18   27   16   18   16   20   19    16
  15E |   14   24    8   12   20    4   19    7   13   13    5 |    22   29   20   21   22   14   22   19   19   21    16
  16E |   12   15    6   12   17    4   17   14    9   11    4 |    14   21   19   21   21   14   19   19   24   20    17
  17  |    9   15    5   11   16    4   15    7    8   26    3 |    20   26   17   20   30   16   25   18   22   22    17
  18  |    8   14    5    7   16    4   17    8    9   20    3 |    17   26   19   18   30   18   24   20   24   20    18
  19  |    7   16    6    9   15    6   16   10   11   23    4 |    14   25   15   14   28   14   24   18   24   22    15
  20  |   10   12    7   11   15    4   12   10    8   13    3 |    16   21   17   16   28   15   21   17   20   15    15
  21  |    8   10    7    5   12    3   12    7   11   34    3 |    19   24   23   18   25   19   24   18   22   30    19
  22  |    6   12    6    7   15    4   15    7    9   16    3 |    22   26   22   20   30   22   26   25   25   24    21
  23E |   11   15    7   10   17    4   11   13    8   15    4 |    24   27   24   22   24   20   25   21   24   22    20
  24  |   11   13    6   10   15    2   12    6    9   11    3 |    17   23   20   14   26   16   25   16   19   16    16
  25E |   14   14    6    9   20    5   17    8   10   13    4 |    13   23   18   16   25   15   28   18   22   15    16
  26  |   12   12    9    9   12    4   14    9   10   20    4 |    19   26   20   22   20   18   23   22   19   27    18
  28E |    7   12    6    9   25    4   13    8   10   20    4 |    23   21   22   24   20   18   21   21   25   29    19
  29  |   18   18    7    9   12    5   22    8    9   19    4 |    17   28   19   24   26   19   31   19   23   23    19
 X30E |    7  ---  ---  ---  ---   55  ---  ---  ---  ---    0 |    30  ---  ---  ---  ---   48  ---  ---  ---  ---    28
  31  |   14   15    7    8   18    3   13    7   11   20    4 |    19   24   20   19   34   16   23   16   21   17    17
  32  |    9   10    5    9   10    2    9    9    7   15    3 |    15   20   17   15   20   14   24   16   21   16    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   13    6    9   16    4   14    9   10   20      |T   20   25   20   20   27   19   25   21   22   23    19
 WRMS |   10   13    6    9   14    4   14    8    9   18      |NE  20   25   20   20   28   19   26   22   23   23    19
 MEDI |    9   12    6    9   15    4   13    8    9   17      |MD  19   25   20   20   26   18   25   20   22   22    18

Table 3.1742.2   GPS week: 1742   Day: 2   MJD: 56440.000                            

        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  |   15    9    4    6   15    3   19    7   11   19    3 |    35   43   40   38   53   38   49   40   39   31    39
   2  |   11   10    6   10   15    3   11   10    7   26    3 |    18   18   19   21   28   18   18   23   21   18    18
   3  |    8   10    5    6   14    4   13    6    9   21    3 |    26   32   23   27   29   23   30   24   28   31    25
   4  |    9    7    7    8   16    3   10   16   10   27    4 |    26   22   23   27   34   24   24   31   23   30    24
   5  |    8   12    6    8   17    3   13   11    8   15    3 |    18   21   17   20   31   14   22   18   24   17    17
   6  |    8   12    4    7   11    4   15   10    7   21    3 |    13   20   10   15   19   11   19   13   18   15    11
   7  |    7   12    5    7   18    3   14   10    9   33    3 |    23   25   22   22   33   21   25   24   25   34    21
   8  |   10   10    5    6   14    3   10   15    9   18    3 |    17   19   17   20   22   17   20   27   19   21    17
   9  |    9   10    5    7   14    3   12   14    7   20    3 |    20   22   20   20   22   18   25   24   22   25    18
  10  |   10    7    4    8   14    3    9   11    8   17    3 |    15   19   18   18   24   15   22   19   24   22    17
  11  |   10   11    5    7   17    3   13    8    9   16    3 |    24   34   27   27   42   27   33   29   31   25    27
  12E |   14   20    6    8   17    4   24    8   13   12    5 |    29   27   20   23   23   19   26   20   26   18    20
  13  |    8   16    4    9   22    4   13    9    6   13    4 |    22   26   25   21   42   22   26   25   28   25    23
  14  |    7   10    5   10   14    4   15    8   11   14    3 |    21   26   24   24   31   23   25   22   32   25    23
  15E |   10   22    6   12   23    6   18    7   10   13    4 |    20   29   20   20   25   14   23   21   24   25    19
  16E |   16   15    7   15   22    4   18   17   11   18    5 |    25   25   25   30   25   23   29   29   28   28    24
  17  |    8   15    6    7   17    3   18   10    6   24    4 |    16   23   14   15   32   14   26   15   23   18    14
  18  |    8   16    4    8   16    4   20    8   11   19    4 |    18   28   23   21   35   21   26   21   30   22    21
  19  |    6   14    6    8   15    5   18    8    9   23    3 |    13   25   16   15   31   16   26   16   25   20    16
  20  |   10   14    5    8   17    3   15    7    7   14    3 |    16   22   18   19   31   19   22   20   26   15    18
  21  |    8   13    7    7   13    3   12    6    9   35    3 |    20   29   26   25   33   24   25   22   26   34    23
  22  |    7   14    5    8   16    4   18    8    8   16    3 |    22   29   25   26   38   22   29   22   29   20    23
  23E |   10   13    6   11   20    4   13    8    8   15    4 |    27   29   26   21   36   23   30   26   32   29    25
  24  |   13   16    6    6   15    2   13    8    8   11    3 |    16   23   19   17   26   15   27   17   21   20    16
  25E |   12   13    6    7   17    4   16   12   11   12    4 |    18   24   18   15   23   15   27   16   23   14    16
  26  |   13   13    9    8   16    3   15   11    9   18    4 |    18   25   19   20   22   15   25   20   22   25    18
  28E |    8   10    4    6   23    3   12    9    7   20    3 |    20   22   20   22   21   17   25   21   23   24    18
  29  |   16   19    6   10   12    3   23    8   10   19    4 |    24   33   21   23   28   21   34   23   26   27    22
 X30E |    9  ---  ---  ---  ---   66  ---  ---  ---  ---    0 |    43  ---  ---  ---  ---   28  ---  ---  ---  ---    44
  31  |   11   15    5    8   19    3   17    8    8   19    4 |    20   25   21   21   34   21   27   16   28   17    20
  32  |   11   12    5   11   12    4   11    9    7   15    3 |    15   20   11   16   22   14   20   14   22   14    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    6    8   17    4   15   10    9   20      |T   21   25   20   21   29   19   26   21   25   22    20
 WRMS |   10   13    6    9   15    4   15    9    8   20      |NE  19   25   20   21   31   19   26   21   25   22    20
 MEDI |   10   13    5    8   16    3   14    8    9   18      |MD  20   25   20   21   29   19   25   21   25   22    20

Table 3.1742.3   GPS week: 1742   Day: 3   MJD: 56441.000                            

        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   10    5   16    8   13   21    3 |    40   48   48   40   57   43   54   46   38   37    45
   2  |    7   11    5    9   13    4   10   14   11   23    3 |    23   22   24   20   27   21   23   31   25   22    22
   3  |    7   12    4   10   10    3   10   13   11   25    3 |    56   60   57   56   59   57   61   54   58   59    56
   4  |    8    9    5    6   11    5    8   18    9   30    3 |    27   27   31   28   38   29   29   40   30   36    29
   5  |   10   18    4   10   15    4   14   14    9   16    4 |    19   26   19   17   30   17   24   20   24   20    18
   6  |    8   12    4   11    9    4   10   12   11   20    3 |    25   30   26   25   29   25   29   23   27   27    25
   7  |    9   12    5    8   18    5   11   14    8   38    3 |    29   30   26   24   35   23   28   27   28   38    25
   8  |    8   10    4    8   10    3   10   15    9   21    3 |    25   27   23   23   26   23   25   29   25   26    23
   9  |    8   10    5    8    8    3    9   19    8   22    3 |    21   27   23   21   23   22   27   31   22   29    21
  10  |    7    8    3    7   11    4    8   13    7   20    3 |    22   28   22   19   28   20   28   27   25   29    22
  11  |    8   10    5    9   13    2   11   11   12   18    3 |    28   35   32   27   41   28   35   34   26   26    29
  12E |   14   19    5   11   23    5   24   14   11   14    5 |    29   30   26   23   26   24   31   26   30   24    25
  13  |    5   13    5    9   16    5   12   12   10   17    3 |    23   31   23   20   39   20   29   24   29   19    23
  14  |    8   12    8    7   13    4   11   11    9   17    3 |    19   20   22   16   26   15   21   17   19   17    17
  15E |   16   26    6   13   13    6   21    9   15   15    5 |    25   28   19   18   21   17   23   22   28   24    18
  16E |   14   16    4   20   14    4   15   12    9   18    4 |    30   29   27   31   30   27   30   33   34   30    27
  17  |    7   14    5    8   15    4   16   10    7   26    3 |    22   27   19   18   33   20   27   21   26   25    20
  18  |    8   15    5    7   12    3   17    9   12   20    3 |    19   26   22   20   33   20   26   24   28   18    21
  19  |    7   15    5   10   15    3   15   10   12   24    4 |    15   26   15   16   30   15   25   18   23   20    16
  20  |   12   14    4    9   13    4   13    9    8   15    3 |    22   25   19   21   28   20   25   23   21   18    19
  21  |    5   11    5    8   10    4   10    8   14   35    3 |    19   25   23   23   26   22   25   24   25   31    22
  22  |    7   12    5    8   12    4   12   10    7   18    3 |    29   31   30   29   39   26   30   29   27   23    28
  23E |    8   14    5    9   14    4   12    9   10   18    3 |    25   31   26   21   31   23   29   26   28   30    24
  24  |   10   12    5    9   15    3   11   11   10   17    3 |    19   22   20   14   28   17   27   20   21   21    18
  25E |    9   14    6    8   15    4   15   14   12   15    4 |    22   26   23   15   25   18   30   23   25   21    20
  26  |   12   19    6   11   12    4   12   16   13   21    4 |    23   31   21   22   20   19   26   28   26   30    21
  28E |    7   10    4    8   13    3    9   10    8   19    3 |    24   24   21   21   23   19   25   22   23   25    20
  29  |   17   21    6   10   14    6   19   13    9   19    5 |    25   38   30   25   32   26   37   30   33   35    28
 X30E |    8  ---  ---  ---  ---   60  ---  ---  ---  ---    0 |    57  ---  ---  ---  ---   33  ---  ---  ---  ---    56
  31  |   10   15    5    8   17    4   10   10   12   20    3 |    18   26   20   18   35   19   26   20   28   20    20
  32  |   12   11    4    8   10    3    8   12    6   16    3 |    20   24   14   12   22   12   22   19   21   18    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    5    9   13    4   13   12   10   21      |T   25   29   25   22   31   23   29   27   27   26    24
 WRMS |    9   14    5    9   12    4   13   11    9   24      |NE  24   30   25   23   33   23   30   27   27   27    24
 MEDI |    8   12    5    8   13    4   11   12   10   19      |MD  23   27   23   21   29   21   27   24   26   25    22

Table 3.1742.4   GPS week: 1742   Day: 4   MJD: 56442.000                            

        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    9    4   10    8    3   17   14   11   24    3 |    37   46   44   36   54   38   50   39   43   32    41
   2  |    7    8    6   12   14    4    9   17   10   22    3 |    20   23   21   20   25   19   23   30   23   23    20
   3  |    9    9    6    7   11    3    9   14    9   22    3 |    35   34   34   35   33   34   37   43   39   38    33
   4  |   11    7    7   10   13    4    8   19   11   30    4 |    27   24   21   28   28   22   26   37   28   36    23
   5  |    9   14    5   10   15    5   14   18    8   16    4 |    21   30   22   18   30   21   29   28   26   27    22
   6  |    9   10    5    8    9    3    9   17    9   21    3 |    22   22   20   21   24   19   23   30   26   26    19
   7  |    7   12    5    9   20    5   10   14    9   36    4 |    24   32   24   22   34   22   27   29   26   38    23
   8  |    9   10    5    8   13    4    8   22    9   19    3 |    49   50   49   47   47   48   48   50   47   44    47
   9  |    7   10    6   11   10    3    8   18    6   24    3 |    29   32   29   23   23   25   31   36   23   36    26
  10  |    9    7    5   10   13    3    7   14    7   21    3 |    19   24   21   17   23   18   24   26   21   32    19
  11  |    7   11    4   10   11    3   10   13   11   17    3 |    23   36   30   24   42   25   36   30   31   25    28
  12E |   14   16    5   13   22    5   20   20    8   20    5 |    25   30   24   25   28   23   31   30   29   25    23
  13  |    8   12    4   10   19    4    9   17    9   21    4 |    30   34   30   25   41   29   32   33   31   32    29
  14E |    7   11    6   10   15    4    9   15   10   14    3 |    37   39   38   34   40   35   37   36   34   33    35
  15E |    9   18    6   13   19    4   19   13   10   17    5 |    23   27   21   19   24   17   24   26   23   24    19
  16E |   10   19    6   14   17    3   12   15    9   15    4 |    24   30   26   24   29   23   26   24   32   27    24
  17  |    6   15    6   13   16    4   12    9   11   28    4 |    21   30   23   22   33   20   29   23   28   27    22
  18  |    7   13    7    9   13    4   15   11   10   19    4 |    22   29   25   20   32   22   30   24   26   20    23
  19  |    6   14    5    9   14    3   14   12    9   24    3 |    19   31   22   16   33   18   29   21   24   23    21
  20  |   10   15    4    8   12    3   12   14    9   19    3 |    17   28   21   18   32   19   26   24   28   20    20
  21  |    7   11    5   10   10    3   10   11   12   36    3 |    24   28   29   24   32   25   30   29   34   38    26
  22  |    7   10    6    9   12    3   13   12   11   18    3 |    24   28   31   23   35   25   27   26   32   22    26
  23E |    9   12    4   12   14    5   13   15    9   21    4 |    18   25   21   17   26   17   25   25   20   26    18
  24  |   10   12    5   11   16    4   11   13   11   14    4 |    22   26   22   18   26   19   28   25   25   23    20
  25E |   10   13    6   11   15    3   14   17    7   19    4 |    18   27   22   19   24   17   29   26   24   22    19
  26  |   11   19    8   12   14    5   18   17   10   22    5 |    21   31   21   20   23   20   30   31   17   32    19
  28E |    6   11    5   11   13    3    7   11    7   25    3 |    28   32   30   26   32   27   30   31   27   33    27
  29  |   15   16    8   10   13    6   19   13    8   22    4 |    21   30   23   21   28   19   30   27   25   28    22
 X30E |    9  ---  ---  ---  ---   82  ---  ---  ---  ---    0 |    68  ---  ---  ---  ---   46  ---  ---  ---  ---    66
  31  |   11   17    6   10   21    4   11   12   10   18    4 |    18   26   21   19   34   18   25   19   26   20    19
  32  |   12   11    6    9   13    4    7   18    9   19    4 |    20   27   20   14   24   16   24   24   25   24    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    6   11   15    4   12   15    9   22      |T   26   30   26   23   31   24   29   29   28   28    25
 WRMS |    9   13    6   11   13    4   12   14    9   23      |NE  24   30   26   23   32   23   30   29   28   28    24
 MEDI |    9   12    5   10   13    4   11   14    9   21      |MD  23   30   23   21   30   22   29   28   26   27    23

Table 3.1742.5   GPS week: 1742   Day: 5   MJD: 56443.000                            

        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   11    5    7   10    3   17   12   12   26    3 |    31   40   38   33   46   33   45   31   38   26    35
   2  |   10   11    7   12   14    4   16   16   10   22    4 |    16   18   20   20   21   15   15   19   22   15    16
   3  |   10    9    4    6   12    2   13   14    5   23    3 |    40   48   42   44   43   43   49   43   43   46    42
   4  |    8   10   10    8   15    3   10   15    9   31    3 |    19   18   24   23   30   19   17   24   23   29    19
   5  |   10   18    6    9   15    3   18   21    8   17    4 |    18   30   18   16   30   15   27   17   25   17    17
   6  |    7    9    3    7   10    3   12   16    5   20    3 |    17   24   16   19   21   17   25   20   20   19    17
   7  |    9   13    7    8   21    4   12   14    6   38    4 |    31   28   25   24   38   23   26   24   29   36    24
   8  |    7    9    5    6   14    3   11   13    6   19    3 |    33   33   30   32   30   30   35   36   32   38    30
   9  |    7    9    6    7   12    3   12   14    7   24    3 |    17   21   18   16   23   16   21   18   22   23    16
  10  |    7   10    4    7   11    3   11   14    5   22    3 |    15   24   19   17   24   16   22   18   23   23    18
  11  |    8   12    4    8   12    3   11   11    7   19    3 |    27   33   29   26   37   25   31   24   29   20    27
  12E |   11   18    6   11   20    4   22   20    8   21    5 |    23   26   23   22   25   19   25   23   25   20    21
  13  |    7   11    5    6   23    3   14   18    8   19    4 |    36   41   40   36   51   36   39   43   35   42    37
  14E |    7   11    6   10   17    5   10   12   12   19    3 |    23   25   27   26   26   25   24   22   33   28    24
  15E |   10   19    7   11   21    5   21   16    9   20    5 |    22   25   23   20   26   18   28   23   30   27    20
  16E |    9   18    6   13   19    4   10   15    8   17    4 |    32   35   34   34   31   32   32   35   40   33    32
  17  |    8   16    6    9   17    4   15    8    9   28    4 |    16   24   19   17   34   15   25   15   26   20    18
  18  |   10   14    6    7   16    3   16   14    9   18    4 |    17   28   23   20   34   21   28   23   27   22    21
  19  |    7   15    4    9   15    4   17   13    8   26    4 |    19   26   18   19   28   15   26   12   25   16    18
  20  |   10   13    5    6   13    3   14   13    9   20    3 |    21   27   23   24   32   20   27   23   26   20    22
  21  |    9    9    7    8   11    3   11   14   11   37    3 |    14   22   17   15   24   16   24   23   22   31    16
  22  |   10   14    6    7   15    3   14   12   10   17    3 |    21   28   25   22   37   23   29   23   31   21    24
  23E |    9   12    5   11   21    3   13   14    7   20    4 |    18   21   18   15   28   15   22   20   22   19    16
  24  |   12   11    7    8   19    3   11   14    8   19    4 |    19   24   24   18   33   18   29   18   26   22    20
  25E |   11   17    5    9   20    2   14   17    7   21    4 |    20   29   22   16   23   17   25   18   22   22    19
  26  |   11   18   11    9   16    3   19   15    9   23    4 |    30   38   31   29   35   28   36   34   31   37    29
 X27  |    8  ---  ---  ---  ---  548  ---  ---  ---  ---    0 |   284  ---  ---  ---  ---   84  ---  ---  ---  ---   282
  28E |    7    9    5    8   15    2    9   11    7   16    3 |    17   24   20   19   23   18   24   21   25   19    18
  29  |   14   16    5   10   13    4   19   16    9   22    4 |    25   30   22   22   26   21   29   25   27   28    22
 X30E |    8  ---  ---  ---  ---   66  ---  ---  ---  ---    0 |    49  ---  ---  ---  ---   31  ---  ---  ---  ---    49
  31  |   13   18    7    7   23    4   14   13    9   21    4 |    22   27   22   20   36   18   25   19   25   20    20
  32  |   11    9    5    7   12    5   10   18    9   20    3 |    17   22   17   16   23   14   24   18   24   19    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    6    9   16    3   14   15    8   23      |T   31   27   24   22   30   23   27   23   27   25    31
 WRMS |    9   13    6    9   14    3   14   14    8   23      |NE  33   28   24   22   31   24   28   23   27   25    33
 MEDI |    9   12    6    8   15    3   13   14    8   20      |MD  21   26   23   20   30   19   26   23   26   22    20

Table 3.1742.6   GPS week: 1742   Day: 6   MJD: 56444.000                            

        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    8    5    9   10    3   17   12   17   29    4 |    43   52   55   50   63   48   59   49   46   42    50
   2  |    5    9    4    5   13    3   10   14    6   23    3 |    19   20   23   24   31   21   19   29   21   21    21
   3  |   10   10    5    4   11    3   12   11   11   20    3 |    32   37   33   30   34   31   33   27   32   39    31
   4  |    7   10    4    7   12    3   10    9    6   36    2 |    28   25   30   34   42   29   27   36   32   38    30
   5  |   11   14    4    8   16    4   17   15    9   19    4 |    18   30   22   24   33   19   30   21   22   21    21
   6  |    9   10    5    5   11    3   15   13    9   16    3 |    11   21   16   13   20   12   21   14   19   19    13
   7  |    6   12    5    7   23    4   15   15   13   38    4 |    26   29   25   31   32   25   25   27   27   49    25
   8  |    8    8    5    8   14    4   10   10    8   14    3 |    35   35   36   33   36   34   38   34   36   29    34
   9  |    7    8    5    7   13    4   10    7    6   21    3 |    22   22   23   19   24   21   25   18   21   23    20
  10  |    5    9    4    6   11    4   10   12    9   22    3 |    15   20   18   18   28   16   22   20   20   23    17
  11  |   11   11    5    9   14    3   13   11   14   19    4 |    27   35   34   31   47   29   36   32   28   26    31
  12E |   16   21    7   11   23    4   22   15   12   13    5 |    24   24   19   22   30   17   24   18   25   16    18
  13  |   16   14    5   10   15    8   13   23    8   18    4 |    98   88   90   90   94   87   91   88   91   83    90
  14E |    9   11    4   10   13    4    9   10    7   18    3 |    24   27   26   27   28   26   29   22   26   24    24
  15E |   10   16    5   10   19    4   20   14   12   18    4 |    26   35   30   33   31   28   28   32   31   28    28
  16E |   10   24    4   11   18    3   15   18    9   11    4 |    20   32   22   25   23   21   25   24   27   22    21
  17  |    8   15    4    9   22    5   16    7    7   27    4 |    21   26   23   23   36   22   26   24   28   26    22
  18  |   12   13    6    8   16    4   18   19    8   22    4 |    19   27   22   20   31   20   27   26   21   18    20
  19  |   10   16    4    7   17    4   15   10   12   23    4 |    17   25   20   19   33   17   25   17   22   18    18
  20  |    9   13    5    8   17    3   15   15   11   18    4 |    19   23   19   21   31   18   24   21   19   20    18
  21  |    9   10    7    7   12    5   12   17   10   39    3 |    22   23   25   23   31   22   25   30   25   35    23
  22  |   11   11    5    7   17    3   15   16    7   19    3 |    16   27   22   21   36   20   26   26   23   21    21
  23E |    8   13    4   11   18    3   15   18    7   18    4 |    20   23   19   19   27   18   24   21   23   26    18
  24  |   12   16    5    9   21    5   12   11   11   14    4 |    18   25   19   19   27   18   28   20   19   21    17
  25E |   10   15    5    7   19    3   17   13   10   22    4 |    13   22   20   11   24   14   29   12   23   20    16
  26E |   18   19   10   11   18    8   16   13   13   22    5 |    49   50   54   48   43   44   46   52   43   51    47
 X27  |    7  ---  ---  ---  ---   55  ---  ---  ---  ---    0 |   192  ---  ---  ---  ---   84  ---  ---  ---  ---   190
  28E |    6   11    5    7   17    4   12    7    6   13    3 |    19   19   21   16   22   17   22   15   20   16    17
  29  |   11   19    5   10   15    6   17   13    9   22    4 |    26   34   23   24   26   23   36   27   30   31    25
 X30E |    7  ---  ---  ---  ---   34  ---  ---  ---  ---    0 |    40  ---  ---  ---  ---   26  ---  ---  ---  ---    42
  31  |   11   19    5    9   27    4   16   11    9   21    4 |    18   25   19   20   38   19   23   18   26   14    18
  32  |    8   12    6    7   13    5    9   17   10   18    3 |    17   21   16   16   19   14   22   20   20   22    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    5    8   17    4   14   14   10   22      |T   31   30   27   26   34   26   30   27   28   28    31
 WRMS |    9   14    5    8   16    4   14   13    9   20      |NE  33   30   27   27   36   28   31   28   28   29    33
 MEDI |    9   12    5    8   16    4   15   13    9   19      |MD  21   25   22   23   31   21   26   24   25   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 4.1742   GPS week: 1742   MJD: 56438.0-56444.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2951 |U    6     6    14 |U   13    38    79 |U    7     7    18 |
emr | emr 2880 |     7     7    20 |U   15    37    79 |     8     7    22 |
esa | esa 2880 |     5     5    16 |U   16    37    82 |     7     7    18 |
gfz | gfz 2879 |U    5     6    16 |U   12    39    75 |U    7     6    17 |
grg | grg 2879 |U   11    13    35 |U   20    42    90 |    12    15    40 |
igr | igr 2880 |     5     6    16 |    12    37    80 |     7     6    17 |
igs | igs 2880 |     5     5    16 |    13    37    77 |     8     6    18 |
jpl | jpl 2880 |     7     7    21 |U   13    38    85 |U    8     7    23 |
mit | mit 2880 |     5     7    16 |U   18    39    92 |U    8     8    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 5.1742.0   GPS week: 1742   Day: 0   MJD: 56438.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2931 |     4     3    12 |     5     9    21 |     9    10    20 |
emr | emr 2880 |     9     7    23 |     7     6    21 |    10    10    20 |
esa | esa 2880 |     5     3    14 |     5     8    20 |    10    10    21 |
gfz | gfz 2880 |     5     3    13 |     5     8    20 |     9     9    18 |
grg | grg 2880 |    10    13    30 |     6     9    30 |    10    13    33 |
igr | igr 2880 |     5     3    14 |     5     8    20 |     9    10    20 |
igs | igs 2880 |     5     4    15 |     4     7    20 |     9     9    19 |
jpl | jpl 2880 |     6     5    20 |     5     8    20 |    10     8    18 |
mit | mit 2880 |     7    12    15 |     5     8    24 |     8    12    25 |

Table 5.1742.1   GPS week: 1742   Day: 1   MJD: 56439.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2933 |    12     8    17 |     9    11    34 |     8     7    18 |
emr | emr 2880 |     8     6    20 |    11    12    36 |    10     8    23 |
esa | esa 2880 |     4     5    16 |     9    11    36 |     8     6    20 |
gfz | gfz 2880 |     5     5    17 |     9    13    38 |     8     5    18 |
grg | grg 2880 |    12    14    36 |    12    10    39 |    10    18    35 |
igr | igr 2880 |     4     6    17 |     9    11    36 |     8     5    18 |
igs | igs 2880 |     4     5    17 |     9    12    36 |     8     6    18 |
jpl | jpl 2880 |     5     7    16 |     9    12    40 |     9     8    24 |
mit | mit 2880 |     4     7    18 |    10    13    38 |    10     9    21 |

Table 5.1742.2   GPS week: 1742   Day: 2   MJD: 56440.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2933 |     5     4    14 |    56   214   408 |     6     5    13 |
emr | emr 2880 |     8     7    21 |    52   211   400 |     8     7    20 |
esa | esa 2880 |     5     5    18 |    78   209   427 |     7     6    13 |
gfz | gfz 2880 |     5     4    17 |    50   220   363 |     7     5    12 |
grg | grg 2880 |     9     8    26 |    76   221   424 |    11    16    35 |
igr | igr 2880 |     5     5    18 |    53   209   407 |     7     5    13 |
igs | igs 2880 |     5     4    17 |    52   210   397 |     7     6    13 |
jpl | jpl 2880 |     6     6    21 |    53   211   438 |     8     6    21 |
mit | mit 2880 |     5     4    17 |    86   208   480 |     8     5    15 |

Table 5.1742.3   GPS week: 1742   Day: 3   MJD: 56441.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2940 |     7     9    18 |     8    13    26 |     9     9    24 |
emr | emr 2880 |    11     9    24 |    10     9    27 |    10     9    26 |
esa | esa 2880 |    10     8    20 |     7     9    24 |    10     8    25 |
gfz | gfz 2880 |     9     8    20 |     8    10    29 |    10     8    22 |
grg | grg 2880 |    13    14    40 |    14    11    37 |    14    15    45 |
igr | igr 2880 |    10     8    22 |     7     9    26 |     9     8    22 |
igs | igs 2880 |     9     8    21 |     8     9    24 |    10     8    23 |
jpl | jpl 2880 |    10     9    24 |     9     9    27 |    10     9    27 |
mit | mit 2880 |     9     8    19 |     7     9    26 |    10    10    22 |

Table 5.1742.4   GPS week: 1742   Day: 4   MJD: 56442.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2934 |     4     5    11 |     5     8    24 |     6     6    17 |
emr | emr 2880 |     6     7    15 |     9     8    23 |     7     6    22 |
esa | esa 2880 |     4     5    11 |     5    10    24 |     6     5    18 |
gfz | gfz 2880 |     5     5    11 |     6     8    29 |     6     7    16 |
grg | grg 2879 |     9    10    29 |    11    15    29 |    11    12    34 |
igr | igr 2880 |     4     4    10 |     5     9    25 |     6     5    18 |
igs | igs 2880 |     4     5    10 |     5     8    23 |     6     5    18 |
jpl | jpl 2880 |     6     6    12 |     6     8    25 |     7     7    24 |
mit | mit 2880 |     4     7    10 |     5    11    22 |     7     6    20 |

Table 5.1742.5   GPS week: 1742   Day: 5   MJD: 56443.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2978 |     5     4    14 |     5     7    24 |     7     6    19 |
emr | emr 2880 |     6     5    17 |     7     8    23 |     7     6    24 |
esa | esa 2880 |     4     6    18 |     5     7    27 |     7     6    18 |
gfz | gfz 2880 |     5     8    18 |     6     7    30 |     7     6    18 |
grg | grg 2880 |    16    24    57 |    12    15    39 |    18    21    80 |
igr | igr 2880 |     4     6    18 |     5     7    27 |     7     6    18 |
igs | igs 2880 |     4     6    17 |     5     7    25 |     7     6    19 |
jpl | jpl 2880 |     8     8    27 |     6     8    27 |     7     7    24 |
mit | mit 2880 |     4     7    18 |     6     8    31 |     8     6    22 |

Table 5.1742.6   GPS week: 1742   Day: 6   MJD: 56444.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3013 |     7     8    14 |     4     9    16 |     5     5    13 |
emr | emr 2880 |     5     6    18 |     7     7    21 |     7     6    19 |
esa | esa 2880 |     4     7    17 |     5     7    15 |     6     6    14 |
gfz | gfz 2876 |     5     8    16 |     5     7    18 |     6     5    13 |
grg | grg 2880 |     9    10    27 |     9    12    31 |     9    10    18 |
igr | igr 2880 |     4     7    17 |     4     7    15 |     5     5    14 |
igs | igs 2880 |     4     6    16 |     5     7    16 |     6     5    14 |
jpl | jpl 2880 |     6     7    28 |     6     9    20 |     7     7    25 |
mit | mit 2880 |     5     6    17 |     7    14    25 |     7     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 6.1742   GPS week: 1742   MJD: 56438.500-56444.500

                                                         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 |     -51     -23       3    -200     -4 |       6     20
            |      20      18      51      66      6 |       4
emr   uuuuu |      37      26     -19     238      0 |      35     40
            |      29      15      69      68     13 |       3
esa   uuuuu |      -4      -6      18     -53      0 |      18     26
            |      13      13      66      47      4 |       2
gfz   uuuuu |      16       9     -23      25     -1 |      11     22
            |      15      13      70      35      3 |       3
grg   uuuux |       3     -17       5     -55    -30 |      10     25
            |      16      12      80     133     34 |       6
igr   xxxxx |     -38      -4      13      67     -5 |       1     19
            |      17       9      56      32      4 |       5
irf   xxxxx |      22       0     -19       2      0 |       3     19
            |      10       3      18      29      2 |       2
jpl   uuuuu |      39     -17      27     156      6 |      28     34
            |      35      13      76      77      7 |       3
mit   uuuuu |      42     -10     -88      23      4 |      13     24
            |      27      20      85      53      4 |       2
ngs   uuuuu |     -42      31      42      16      0 |       8     17
            |      54      24     100      61      4 |       2
sio   xxxxx |     301     146     -61     229      7 |      32     38
            |      55      30      25      59      7 |       2


Table 7.1742.0   GPS week: 1742   Day: 0   MJD: 56438.500

                                                         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 |     -64     -12      18    -150     -7 |       8     20
emr   uuuuu |      35      -3      11     222     -9 |      38     42
esa   uuuuu |     -20      -7      -1     -61     -2 |      17     25
gfz   uuuuu |      35      24    -174      72      0 |      13     22
grg   uuuux |       3     -23     -48    -125    -36 |      17     25
igr   xxxxx |     -39       0     -33      57     -8 |       5     19
irf   xxxxx |      23      -1      -4     -26      4 |       3     18
jpl   uuuuu |     -16     -24     -27      72      2 |      27     34
mit   uuuuu |       0     -27      43     -30     11 |      12     22
ngs   uuuuu |      35      51     178      41      1 |       7     16
sio   xxxxx |     332     163     -58     140     20 |      28     34

Table 7.1742.1   GPS week: 1742   Day: 1   MJD: 56439.500

                                                         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 |     -48     -48      98    -217      0 |       9     20
emr   uuuuu |      40      34      47     254     -3 |      37     41
esa   uuuuu |      16      22    -103       1      4 |      18     26
gfz   uuuuu |     -10      16       7       3      2 |      13     23
grg   uuuux |      16     -21     -64    -171    -32 |      16     25
igr   xxxxx |     -43      -7     -59      44     -5 |       5     19
irf   xxxxx |       9       1      -5     -46      0 |       5     20
jpl   uuuuu |      16     -27      48      61     -5 |      30     37
mit   uuuuu |      24     -21     -11     -23      5 |      13     24
ngs   uuuuu |     -54      16      85      85     -4 |       9     18
sio   xxxxx |     317     150    -105     163      9 |      33     39

Table 7.1742.2   GPS week: 1742   Day: 2   MJD: 56440.500

                                                         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     -22     -26    -118    -11 |      12     21
emr   uuuuu |       1      15      35     210     -3 |      39     43
esa   uuuuu |       6      -8     -13      -3      5 |      22     28
gfz   uuuuu |      11      11     -10     -12     -2 |      16     24
grg   uuuux |       8      -9     -10    -198     -4 |      14     25
igr   xxxxx |     -53       2      -3      58     -3 |       7     18
irf   xxxxx |      13      -5     -35      -5      0 |       7     19
jpl   uuuuu |      14      -3      19     177     12 |      32     38
mit   uuuuu |      25     -18     -92      67      7 |      17     26
ngs   uuuuu |      -1      29     112     -99      2 |      11     18
sio   xxxxx |     211     153     -58     255      8 |      35     41

Table 7.1742.3   GPS week: 1742   Day: 3   MJD: 56441.500

                                                         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 |     -14     -31      31    -137     -6 |       7     20
emr   uuuuu |      50      28    -115     290      9 |      34     38
esa   uuuuu |      -8      -6      53    -138     -3 |      18     25
gfz   uuuuu |      12       4       5      74      1 |      11     22
grg   uuuux |     -29      -4     -57    -104     19 |       7     20
igr   xxxxx |     -62       8      15      42     -9 |       2     18
irf   xxxxx |      24       0      -5      27      1 |       3     19
jpl   uuuuu |      57       6    -101     201      7 |      27     32
mit   uuuuu |      53     -24     -76     104      4 |      13     23
ngs   uuuuu |     -79      40      84      33     -1 |       8     17
sio   xxxxx |     255     101     -30     235      4 |      33     39

Table 7.1742.4   GPS week: 1742   Day: 4   MJD: 56442.500

                                                         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 |     -37       9     -18    -290     -6 |       4     18
emr   uuuuu |      77      35    -121     277     18 |      32     36
esa   uuuuu |       4      -5      68     -78      2 |      17     24
gfz   uuuuu |      12     -10      40      25      0 |      10     20
grg   uuuux |       5      -1      60      22    -19 |       9     21
igr   xxxxx |     -24      -2     104      89     -6 |      -1     17
irf   xxxxx |      37       6      -6      13      0 |       2     18
jpl   uuuuu |      67     -18      78     265     17 |      25     30
mit   uuuuu |      82      -3    -107       9      1 |      12     23
ngs   uuuuu |    -130       1     -96       8     -5 |       7     16
sio   xxxxx |     322     108     -53     275      2 |      32     38

Table 7.1742.5   GPS week: 1742   Day: 5   MJD: 56443.500

                                                         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 |     -63     -25     -28    -222     -6 |       5     19
emr   uuuuu |      60      26      -1     309      9 |      35     40
esa   uuuuu |     -11     -22      98     -43     -5 |      19     26
gfz   uuuuu |      18      -4      -3       1     -8 |      11     21
grg   uuuux |      17     -26      -4      15    -59 |       8     21
igr   xxxxx |     -36     -11      63      49     -7 |      -1     17
irf   xxxxx |      28      -2     -34      32     -1 |       3     19
jpl   uuuuu |      53     -27      34     111      3 |      28     34
mit   uuuuu |      58      -9    -171      56      2 |      14     24
ngs   uuuuu |     -45      69     -68     -22      8 |       7     16
sio   xxxxx |     378     164     -79     236      2 |      34     40

Table 7.1742.6   GPS week: 1742   Day: 6   MJD: 56444.500

                                                         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 |     -68     -29     -56    -263      7 |       0     23
emr   uuuuu |      -2      44      10     106    -20 |      32     38
esa   uuuuu |     -14     -13      23     -47     -2 |      15     26
gfz   uuuuu |      32      22     -29      10     -2 |       7     24
grg   uuuux |      -2     -32     158     178    -81 |      -1     35
igr   xxxxx |     -11     -19       1     130      3 |      -6     22
irf   xxxxx |      18       2     -46      16     -2 |       0     22
jpl   uuuuu |      79     -26     139     206      7 |      24     33
mit   uuuuu |      51      30    -200     -21      0 |      11     25
ngs   uuuuu |     -21       9      -1      63      0 |       4     18
sio   xxxxx |     294     180     -42     302      2 |      31     39



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