[IGSREPORT-21909] Wk 1743 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Jun 21 04:58:48 PDT 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1743   (Jun 02, 2013 - Jun 08, 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:

igs1743[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1743[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1743[0-6].cls  IGS GPS clock combination summary report.
igs17437.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17437.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   | JOZ2 JOZ2
                0  |  EMR   | 26 26 TLSE WUHN TLSE WUHN
                0  |  ESA   | IRKJ KOUC MATE WES2 KOUC MATE
                0  |  GFZ   | MATE WES2 IRKJ MATE
                0  |  GRG   | CONZ IRKJ NYAL THU3 CONZ NYAL THU3
                0  |  JPL   | 26
                0  |  MIT   | 23 26 23 26 DAV1 MDVJ POLV DAV1 IRKJ MDVJ POLV
                1  |  COD   | 24 JOZ2 KOUC JOZ2 KOUC
                1  |  EMR   | 21 26 21 26 HERS IRKT
                1  |  ESA   | IRKJ KOUC NTUS KOUC MATE NTUS UNSA
                1  |  GFZ   | MATE IRKJ MATE PIMO
                1  |  GRG   | 26 26 IRKJ NTUS NTUS
                1  |  JPL   | 21
                1  |  MIT   | 3 26 3 26 MDVJ DAV1 IRKJ MDVJ
                2  |  COD   | CONZ HERT KOUC TLSE CONZ HERT KOUC TLSE
                2  |  EMR   | 21 26 21 26 TLSE
                2  |  ESA   | IRKJ KOUC KOUC
                2  |  GFZ   | ARTU DAEJ MANA YKRO ARTU DAEJ DAV1 GLPS IRKJ MANA
                2  |  GFZ   | YKRO
                2  |  GRG   | 3 21 26 3 21 26 DAV1 IRKJ NTUS DAV1 NTUS
                2  |  JPL   | 21 26
                2  |  MIT   | 21 26 21 26 MDVJ DAV1 IRKJ MDVJ PRDS
                3  |  COD   | 21 21 FLRS KOUC CONZ FLRS KOUC
                3  |  EMR   | 21 26 21 26 HERS HERS
                3  |  ESA   | KOUC KOUC UNSA
                3  |  GFZ   | ARTU CHTI DAEJ IRKJ IRKT CHTI DAEJ IRKJ IRKT
                3  |  GRG   | 3 26 3 26 ISPA ISPA
                3  |  JPL   | 3
                3  |  MIT   | 26 3 26 IRKT MDVJ CAS1 IRKT MDVJ NTUS
                4  |  COD   | 26 26 HERT JOZ2 MOBS HERT JOZ2 MOBS XMIS
                4  |  EMR   | MCM4 MCM4
                4  |  ESA   | 26 26 UNSA
                4  |  GFZ   | 26 13 26 AUCK NRMD AUCK COCO NRMD
                4  |  GRG   | DAV1 IRKT KOUC NTUS WROC DAV1 KOUC WROC
                4  |  MIT   | 23 23 QAQ1 REUN MDVJ QAQ1 REUN
                5  |  COD   | HERT MAC1 HERT MAC1
                5  |  EMR   | 26 HERS WHIT WUHN YAKT YELL WHIT WUHN YELL
                5  |  ESA   | 21 21 HOFN IRKJ HOFN UNSA
                5  |  GFZ   | KOUC AUCK IRKJ KOUC
                5  |  GRG   | 26 26 AUCK DARW IRKJ REUN IRKJ REUN REYK
                5  |  JPL   | WHIT
                5  |  MIT   | 3 6 16 23 26 28 31 3 6 10 23 28 MAC1 MDVJ NTUS PALM
                5  |  MIT   | RIOP IRKJ MAC1 MDVJ NTUS PALM RIOP
                6  |  COD   | 26 26 KOUC
                6  |  EMR   | HERS THTI WUHN HERS THTI WUHN
                6  |  ESA   | 26 26 CHUR IRKJ CHUR IRKJ KOUC
                6  |  GFZ   | 26 26 CHTI HOB2 KOUC AREQ CHTI HOB2
                6  |  GRG   | ALRT IRKJ KOUC NKLG NRMD PIMO THTI ALRT IRKJ KOUC
                6  |  GRG   | NKLG NRMD PIMO THTI URUM
                6  |  MIT   | 16 31 16 26 31 KOUC MDVJ MDVJ

 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 |  4 |  4 |  4 |  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    1.3    -.4     -41     -6    -13     .22
       EMR  |   0 |    -.9   -8.2    4.6     -12      7    -24     .35
       ESA  |   0 |    -.8    -.7    5.2      44      4    -42     .28
       GFZ  |   0 |    -.1     .0    -.7     -32    -23    -15     .12
       GRG  |   0 |    3.2    -.3   39.1     -32     49    -19     .06
       JPL  |   0 |    -.5   -2.5    5.6     -46    -20    -70     .38
       MIT  |   0 |    3.5   -2.4   13.0     -33    -13    -38     .39
       NGS  |   0 |     .9   -5.0   18.4    -118    -45    -10     .70
       SIO  |   0 |    1.5   -5.7  -73.5    -136   -321     48     .21

       COD  |   1 |   -1.3    1.3   -1.2     -39      9     -6     .32
       EMR  |   1 |   -3.9   -9.5    4.7     -10     12    -26     .18
       ESA  |   1 |   -3.5   -3.4    2.8      43     15    -41     .17
       GFZ  |   1 |    -.5     .3    -.2     -22    -21      1     .13
       GRG  |   1 |    1.8   -1.9   38.8     -26     34    -49     .20
       JPL  |   1 |   -2.1   -3.5    1.4     -69      0    -22     .53
       MIT  |   1 |    2.2   -3.5   13.0      -6      7    -37     .31
       NGS  |   1 |   -2.0   -8.8   13.1    -103     -2    -35     .56
       SIO  |   1 |    -.9   -7.1  -64.8    -144   -334      5     .32

       COD  |   2 |    -.2    1.1    -.9     -36      1    -19     .14
       EMR  |   2 |   -2.1  -10.5    1.8      -2      4    -21     .23
       ESA  |   2 |   -4.3   -4.1    1.5      39     37    -52     .18
       GFZ  |   2 |    -.9     .4    -.9     -11    -27     -4     .06
       GRG  |   2 |     .7   -3.4   23.1     -28     25    -52     .08
       JPL  |   2 |     .1   -4.8    3.8     -39     29    -39     .28
       MIT  |   2 |    4.3     .0   10.5      -1     15    -43     .06
       NGS  |   2 |   -2.4   -6.4   18.9    -151    -32    -34     .55
       SIO  |   2 |    -.5   -7.9  -57.2    -128   -242     18     .06

       COD  |   3 |    -.7     .4   -1.2     -56     26    -43     .30
       EMR  |   3 |   -1.5    -.4    6.0     -18     13    -21     .30
       ESA  |   3 |    -.4   -2.3    3.2      48     -6    -41     .12
       GFZ  |   3 |    -.1     .1    -.2     -18    -24      0     .02
       GRG  |   3 |    3.9    1.3   36.2     -26     41    -57     .23
       JPL  |   3 |    5.2    -.8   10.1     -32     24    -57     .24
       MIT  |   3 |    2.3   -2.0   17.0      -2      7    -44     .22
       NGS  |   3 |    2.7   -5.8   20.4    -129    -44     17     .54
       SIO  |   3 |    -.6   -2.8  -63.1     -58   -267    154     .20

       COD  |   4 |   -1.0    1.1   -1.1     -39     23     -1     .20
       EMR  |   4 |    -.2     .7    2.9     -15      4    -22     .25
       ESA  |   4 |   -3.0     .3    3.7      45     19    -18     .02
       GFZ  |   4 |   -1.5     .9   -1.1     -12    -21    -11     .22
       GRG  |   4 |    5.4    4.1   35.3     -19     36    -41     .24
       JPL  |   4 |    -.7   -3.7    7.6     -34     -9    -28     .29
       MIT  |   4 |    2.4   -4.8   14.4     -34    -16    -33     .23
       NGS  |   4 |    1.1  -10.0   13.5    -109    -27    -19     .64
       SIO  |   4 |     .0   -3.5  -48.9     -98   -239     70     .04

       COD  |   5 |    -.1     .8    -.8     -46      4    -13     .12
       EMR  |   5 |    5.0   -1.1    7.4      -7      7    -23     .13
       ESA  |   5 |    3.7   -1.8    8.8      66    -53     21     .03
       GFZ  |   5 |    -.4     .3     .1     -26    -24     -2    -.23
       GRG  |   5 |    2.2     .6   41.7     -37     26    -12     .35
       JPL  |   5 |    4.5   -6.6   10.9     -33     14    -45     .06
       MIT  |   5 |    6.4   -1.6   17.0     -36    -27    -40     .31
       NGS  |   5 |    4.2   -4.9   12.6    -102    -52     26     .62
       SIO  |   5 |    -.2   -4.0  -50.8    -173   -274    -63     .12

       COD  |   6 |     .5     .9     .0     -42     -6    -28     .12
       EMR  |   6 |   -4.0   -4.5    5.9     -12     12    -36     .11
       ESA  |   6 |    2.5   -2.6    2.3      45      0    -42     .06
       GFZ  |   6 |    -.6     .5    -.2     -24    -23    -14    -.18
       GRG  |   6 |   -2.1    1.5   29.5     -45     28    -15     .42
       JPL  |   6 |    -.8   -7.3   12.7     -15     34    -46     .23
       MIT  |   6 |     .2   -3.1   18.5     -36    -21    -50     .15
       NGS  |   6 |   -4.0   -4.1   14.1    -101     14    -27     .48
       SIO  |   6 |    2.3   -3.7  -42.3     -89   -243     58     .09


 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 1.1743.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1743.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 2.1743.[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 3.1743.[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 5.1743.0-6). 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 1743 summary.                       (Jun 02, 2013 - Jun 08, 2013)

Table 1.1743.a   GPS week: 1743   MJD: 56445.000-56451.000

         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  267|   -1     1    -6    21    28    -4  -.44   10    9 |    -879    -419     18     84
        |    0     0     1    20    22    16   .03           |     245     499
emr   80|    0    -2    -3    -4   -17     8   .34   13   13 |      -5     229     15     97
        |    1     0     1    18    12    13   .05           |    1017    1342
esa  150|    0     0     1    13    11    -4   .11    5    5 |    -505    -998     15    119
        |    0     0     1     9    19     6   .03           |    1132     694
gfz  202|    0     0    -1   -46   -65    15  -.42    9    9 |     174     -88     13     79
        |    0     1     1    24    66    12   .03           |     339     583
grg  137|    2     1    21    -8    19     1   .59   16   15 |      44    -177     17    170
        |    0     0     4     5    19    19   .06           |     152     507
igr  n/a|    0     0    -1    20    42   -36  -.12    4    4 |    1543     264     15     80
        |    0     0     0     8    15    12   .04           |    1259    1381
jpl   80|    0     0    -5    12   -35   -34   .42   13   13 |    -445     181     15    108
        |    0     0     1    12    26    12   .05           |    1158    1445
mit  236|    0     0     1     7   -12     3  -.57   10    9 |      17     -75     22    212
        |    0     0     1    15    21    16   .02           |     132     506
ngs  243|    0    -1    -1   -19    52     0   .35   10    8 |    -889    -449   1695   3566
        |    0     0     2    34    38    15   .05           |     222     465
sio  419|    0     1    -6  -146  -284    21  -.33   20   18 |     ---     ---    ---    ---
        |    1     0     0    47    33    70   .02           |     ---     ---


Table 1.1743.b   GPS week : 1743   MJD: 56445.000-56451.000   

         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    5    4 |
   2  |    3    3    3    3    3    4    3 |
   3  |    3    3    3    3    3    4    3 |
   4  |    3    3    4    3    3    3    3 |
   5  |    4    4    4    4    4    5    4 |
   6  |    3    3    3    3    3    3    3 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    3    3    3    3    4    3 |
   9  |    3    3    3    3    3    3    3 |
  10  |    3    3    3    3    3    3    3 |
  11  |    4    4    3    4    4    4    3 |
  12  |    5    5    5    6    6    6    6 |
  13  |    4    4    3    3    4    4    4 |
  14  |    4    4    3    4    4    3    4 |
  15  |    4    5    5    5    4    5    4 |
  16  |    4    4    4    4    5    5    4 |
  17  |    4    4    4    4    4    4    4 |
  18  |    4    4    3    4    4    4    4 |
  19  |    4    4    4    4    4    4    4 |
  20  |    4    4    3    4    3    4    4 |
  21  |    3    5    4    4    3    3    4 |
  22  |    4    4    3    4    4    4    4 |
  23  |    4    4    4    4    4    4    5 |
  24  |    4    4    3    4    4    4    4 |
  25  |    4    4    4    4    4    4    5 |
  26  |    6    5    5    5    6    5    5 |
  27  |    0    0    0    0    0    0    0 |
  28  |    4    3    3    3    3    3    4 |
  29  |    4    4    4    4    4    5    5 |
  30  |    0    0    0    0    0    0    0 |
  31  |    4    4    4    4    3    4    4 |
  32  |    3    3    3    3    3    3    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 2.1743.0   GPS week: 1743   Day: 0   MJD: 56445.000                            

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|    0     1    -9    37    41   -10  -.43   10   10 |    -604   -1107     17     83
emr   80|    0    -1    -4    16   -27     9   .34   13   13 |     178   -1647     15     99
esa  150|    0     0     2    27    21    -3   .07    5    5 |   -3046    -386     14    116
gfz  202|   -1    -1     0   -68   -96     1  -.38    9   10 |     223   -1043     16     94
grg  138|    1     0    24   -11    30    25   .60   16   14 |     144   -1022     15    161
igr  n/a|    0     0    -2    33    59   -40  -.11    4    4 |    1309   -1607     15     81
jpl   80|    0     1    -5    29   -38   -26   .43   13   13 |     -29   -1953     15    100
mit  234|    0     0     0    -6     7    26  -.60   11   10 |      47    -896     24    202
ngs  245|    0    -1     0   -48    48    -3   .28   10    9 |    -641   -1111   1861   3576
sio  405|    1     0    -6  -171  -306    62  -.36   19   16 |     ---     ---    ---    ---

Table 2.1743.1   GPS week: 1743   Day: 1   MJD: 56446.000                            

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|   -3     2    -6    28    31   -18  -.43   10    9 |    -795    -513     20     82
emr   80|    1    -1    -5    15   -25    27   .41   14   14 |    -521    -598     16     97
esa  150|    0     0     1     7    36     4   .09    5    5 |    -429   -1203     17    119
gfz  206|    0    -1     0   -78  -107    22  -.39    8    8 |     123     112     13     67
grg  140|    1     2    26    -8     6    -3   .62   16   15 |      74    -310     20    152
igr  n/a|    0     0    -1    14    16   -32  -.17    4    4 |     562    -537     15     68
jpl   80|    0     1    -3    23   -43   -43   .43   14   13 |   -1051    -778     17    104
mit  236|    0     0     0    30     8   -19  -.57   10    9 |     131    -371     24    208
ngs  248|    0    -1    -3   -13    47    -1   .30   10    8 |    -774    -588   1773   3725
sio  420|    1     2    -4  -146  -340   -14  -.32   18   17 |     ---     ---    ---    ---

Table 2.1743.2   GPS week: 1743   Day: 2   MJD: 56447.000                            

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|   -1     2    -5    24    44    26  -.43    9    9 |    -618   -1006     19     93
emr   80|    1    -2    -5    -6    -5    10   .40   13   13 |    -541    -570     14     99
esa  150|    0     0     1     5    28   -11   .14    4    4 |      60    -643     15    112
gfz  206|    0    -1     0   -58  -170    34  -.42    9    9 |     413     115     17    102
grg  138|    1     1    17    -6   -20   -30   .55   16   14 |      47    -295     17    177
igr  n/a|    0     0    -1    17    51   -33  -.11    3    3 |     728    -225     16     99
jpl   80|    0     0    -5     0    -6   -27   .49   13   12 |   -1143    -573     15    112
mit  236|    0     0     1     2   -21   -10  -.56    8    7 |      11    -327     22    233
ngs  242|    0     0     1    34    86    -3   .37   10    8 |    -654    -993   1716   3760
sio  424|    0     2    -7  -151  -276     8  -.33   18   17 |     ---     ---    ---    ---

Table 2.1743.3   GPS week: 1743   Day: 3   MJD: 56448.000                            

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|    0     2    -6    52    60   -21  -.38   10   10 |    -839    -290     18     78
emr   80|    0    -2    -2   -14     0    15   .34   14   14 |   -1087    1827     15     86
esa  150|    0     0     0     9    11     0   .15    5    5 |    -138    -441     19    119
gfz  202|    0    -1    -2   -49   -83    22  -.41    9    9 |     137     635     11     62
grg  139|    2     1    20   -14    33    -8   .48   17   15 |    -281     661     17    145
igr  n/a|    0     0    -2    29    59   -58  -.04    4    4 |     452    1937     16     92
jpl   80|    1     0    -3    23     4   -20   .44   13   12 |   -1819    1792     14    105
mit  236|   -1     0     4    28     4    19  -.54    9    8 |    -213     582     20    178
ngs  243|    1    -1     1   -75   -27   -25   .36   11   10 |    -889    -208   1877   3624
sio  420|   -1     1    -5   -75  -257   137  -.31   19   18 |     ---     ---    ---    ---

Table 2.1743.4   GPS week: 1743   Day: 4   MJD: 56449.000                            

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|    0     1    -5    -4     1    -5  -.45   10   10 |    -898    -263     19     90
emr   80|    1    -1    -2   -31   -32    -4   .29   14   14 |    -301    1442     16    106
esa  150|    0     0     2    24    -5    -2   .11    5    4 |      30   -1403     14    117
gfz  203|    0     0    -1   -26     5     8  -.43    9    8 |     283     -87     10     72
grg  139|    3     1    16    -2    30    21   .62   15   14 |      32     129     17    148
igr  n/a|    0     0    -2    11    33   -29  -.11    4    4 |    1398    1710     15     66
jpl   80|    0     1    -4     8   -74   -47   .37   14   13 |    -819    1539     17    116
mit  236|    0    -1     1     3    -6    -5  -.58   10    9 |     -43     327     21    191
ngs  244|    0    -1    -3   -16    71     4   .38    9    8 |    -917    -294   1782   3493
sio  420|   -1     0    -6  -126  -240    28  -.34   19   19 |     ---     ---    ---    ---

Table 2.1743.5   GPS week: 1743   Day: 5   MJD: 56450.000                            

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  264|   -1     1    -6    17    15     2  -.46   10   10 |   -1181     -31     17     90
emr   80|   -1    -2    -2   -19   -11   -13   .32   13   13 |     154    1502     17    111
esa  150|    0     0     3    15   -17    -9   .09    5    5 |      -6   -2310     15    129
gfz  202|    0     0    -2   -36    -4    16  -.46    9   10 |    -512     331     12     84
grg  134|    2     1    27     0    26     0   .65   16   15 |     147    -187     19    286
igr  n/a|    0     0    -2    19    35   -42  -.15    4    4 |    2370    1330     14     94
jpl   80|    0     0    -8     2   -38   -52   .43   14   14 |      -3    1537     18    117
mit  237|    0     0     2    -4   -38    10  -.58   11   10 |     -14     271     23    263
ngs  244|    1     0    -5   -15    72    24   .39   10    8 |   -1208     -61   1643   3504
sio  417|    0     2    -5  -230  -302   -94  -.32   19   18 |     ---     ---    ---    ---

Table 2.1743.6   GPS week: 1743   Day: 6   MJD: 56451.000                            

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    -4    -2     3    -3  -.49    9    8 |   -1220     273     16     72
emr   80|    0    -3    -1     5   -23    16   .28   13   13 |    2080    -349     16     82
esa  150|    0     0     1     3     2   -11   .08    5    5 |      -7    -604     16    121
gfz  199|    1     1     0    -9    -2     1  -.43    9    9 |     557    -680     15     75
grg  135|    1     1    19   -14    26     8   .64   16   16 |     151    -219     18    126
igr  n/a|    0     0    -1    16    44   -19  -.13    4    4 |    3982    -758     15     64
jpl   80|    1     0    -7     1   -51   -26   .35   13   12 |    1746    -292     15    104
mit  237|    0    -1     2     0   -42     1  -.58   13   11 |     203    -116     26    212
ngs  236|    0    -1    -3     0    70     8   .40    9    7 |   -1145     110   1213   3281
sio  427|   -1     1    -6  -121  -268    26  -.34   24   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 3.1743.0   GPS week: 1743   Day: 0   MJD: 56445.000                            

        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  |    8   11    5    8   13    5   17    7   14   20    3 |    39   49   50   49   64   46   56   47   43   36    47
   2  |    9    9    5    7   12    4   10   10   10   18    3 |    17   19   23   24   30   20   19   25   20   20    20
   3  |    9   10    5    8   11    3   11    8   10   18    3 |    24   26   22   23   20   22   25   24   29   28    23
   4  |   10    8    6    9   12    3   10   10    9   27    3 |    38   40   46   47   53   42   41   44   40   38    42
   5  |   11   16    4    7   15    5   14   13    8   19    4 |    23   30   19   21   28   19   30   21   21   27    19
   6  |    7    9    5   10   11    4   11    9   11   13    3 |    19   23   18   18   22   18   24   19   27   23    19
   7  |   11   12    5    8   17    2   12   11   12   31    4 |    34   30   27   24   38   28   32   28   32   35    27
   8  |   10    8    4    9   13    2    8   11    9   10    3 |    14   17   17   19   19   16   21   19   23   14    15
   9  |    8    8    5    6   11    2   10   10    6   25    2 |    18   20   20   18   21   18   23   20   23   27    18
  10  |   11    8    4    8   11    3    9    9    6   12    3 |    16   24   21   23   31   19   25   22   21   21    20
  11  |   12   12    4    9   13    3    9   10   11   17    3 |    25   38   34   34   51   31   41   34   29   27    33
  12E |   15   20    5   12   20    5   24   13   11   17    5 |    32   29   24   28   31   25   34   26   29   26    25
  13E |    8   13    4   10   20    5   10   13    9   10    3 |    24   25   22   19   40   21   28   24   26   21    22
  14E |    7   11    4   12   11    5    9   14   10   16    3 |    19   24   22   21   31   19   27   26   26   25    21
  15E |   11   18    4   10   16    4   17   12   12   11    4 |    26   26   23   28   29   20   28   25   26   26    23
  16E |   10   18    5   13   19    3   13   12    8   16    4 |    26   28   24   27   29   25   27   29   29   27    24
  17  |   11   15    6    9   17    6   16    7    6   13    4 |    20   25   19   20   32   18   27   18   22   17    18
  18  |   11   13    6    9   18    4   17   12    9   19    4 |    22   23   24   25   36   22   25   27   24   19    21
  19  |    8   15    3   12   16    2   14   14   10   35    4 |    16   26   20   23   31   17   27   19   26   30    19
  20  |   11   15    5    9   13    4   13   10    9   14    3 |    25   27   25   26   39   25   29   26   23   19    24
  21  |    9    8    6    6   10    3   10   10   12   36    3 |    20   20   23   18   24   18   20   24   22   30    19
  22  |    8   14    5    7   14    3   12   10    8   16    3 |    23   25   26   26   40   25   28   29   26   23    24
  23E |    8   12    4   12   19    5   13    9   10   10    3 |    31   33   31   26   38   30   38   28   38   31    30
  24  |   14   12    5    9   16    4   13    9    9   14    4 |    23   29   25   21   36   24   35   24   28   25    24
  25E |   10   16    5   11   17    4   14   12   13   13    4 |    22   31   23   18   31   20   32   20   25   22    22
  26E |   20   19    9   10   24   10   21   12    9   26    5 |    87   90   82   78   95   88   92   81   89   88    84
 X27  |    9  ---  ---  ---  ---   53  ---  ---  ---  ---    0 |   405  ---  ---  ---  ---  411  ---  ---  ---  ---   402
  28E |    8   11    5    8   22    3   10   10    9   14    3 |    18   23   18   20   28   18   25   18   26   17    18
  29  |   10   17    5    9   16    4   18    9   12   21    4 |    32   41   33   31   35   32   43   34   36   38    33
 X30E |    9  ---  ---  ---  ---   43  ---  ---  ---  ---    0 |    32  ---  ---  ---  ---   31  ---  ---  ---  ---    33
  31  |    8   14    5    9   20    5   11    6   11   17    3 |    19   26   22   21   36   21   27   18   26   19    21
  32  |   11   13    4    7   14    5    9   10    7   18    3 |    24   26   19   19   28   19   28   19   24   24    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    5    9   16    4   13   11   10   19      |T   37   29   26   26   35   37   31   27   29   27    37
 WRMS |   10   13    5   10   14    4   13   10    9   16      |NE  22   26   23   23   31   22   27   24   26   25    22
 MEDI |   10   12    5    9   15    4   12   10    9   17      |MD  23   26   23   23   31   21   28   24   26   25    22

Table 3.1743.1   GPS week: 1743   Day: 1   MJD: 56446.000                            

        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    8   13    5   17    8   13   18    3 |    25   32   29   29   41   27   41   28   25   20    28
   2  |    9    9    4    7   11    5    9   11    6   16    3 |    14   16   16   20   19   12   20   17   14   14    14
   3  |    8   12    5    7   12    5   10    8    5   16    3 |    15   23   14   14   17   11   21   15   17   18    14
   4  |    9    8    4    7   12    4    9    7    7   23    2 |    32   36   35   37   43   32   40   34   33   33    34
   5  |   11   18    5    7   17    3   17   12   10   17    4 |    18   27   17   22   27   16   27   20   21   22    16
   6  |    7   11    4    6   11    5   10    8    7   11    2 |    12   18   12   11   18    9   21   13   17   14    11
   7  |    9   11    5    7   17    5   14    9   10   32    3 |    23   28   23   26   28   23   28   25   29   37    22
   8  |    8    8    4    5   11    2    9   10    6    7    2 |    12   15   12   15   12   12   20   17   20   10    12
   9  |    8    8    4    6   12    2   10    8    6   22    2 |    15   18   14   17   15   13   22   16   21   21    14
  10  |    9    9    4    6   12    3    8   10    8   12    3 |    14   18   15   20   23   13   22   17   16   16    14
  11  |    9   11    3    8   16    3   11    7   13   14    3 |    19   33   24   21   41   21   35   23   25   20    23
  12E |   14   20    6   12   24    3   20   12   13   13    5 |    19   25   20   21   32   17   28   17   24   17    18
  13E |    9   12    5   10   16    4   13   10   14    7    4 |    13   21   16   20   28   16   23   18   20   15    15
  14E |    7   10    5    9   15    3    9   11   10   17    3 |    15   16   16   14   22   12   18   17   22   17    14
  15E |   13   17    5   10   19    4   19   10   15   10    4 |    20   19   13   22   17   12   18   16   20   16    13
  16E |   11   17    4   13   20    4   12   11    8   15    4 |    19   23   19   20   27   16   23   19   20   18    17
  17  |    9   16    5   10   16    3   14    6   10   13    4 |    13   20   16   15   31   11   22   12   20   10    13
  18  |    7   17    6    6   15    4   17   11    8   19    3 |    19   24   16   15   28   16   24   21   20   14    15
  19  |    7   17    4   10   16    4   16   13    7   30    4 |    10   25   13   15   27   11   24   14   18   23    13
  20  |   11   14    4   10   14    3   13    9    9   15    3 |    18   20   13   20   27   15   22   19   16   16    14
  21  |   11   12   15    9   26    8   13   10   13   35    5 |    15   21   25   16   19   12   21   18   17   27    15
  22  |    7   14    5    7   15    5   13   10   10   17    3 |    18   23   17   15   31   15   26   23   20   19    16
  23E |   10   17    4   11   18    4   15   10   11   12    4 |    23   34   29   27   30   26   31   27   32   29    27
  24  |   13   11    6    8   14    4   12    9   10   10    3 |    20   20   18   17   24   16   25   16   22   18    16
  25E |    9   14    5    6   19    4   14   12   13   12    4 |    18   27   23   14   27   18   29   17   28   21    20
  26E |   15   19    8   11   16    6   20   13   12   23    5 |    72   71   74   75   76   73   71   71   74   80    72
 X27  |    8  ---  ---  ---  ---  107  ---  ---  ---  ---    0 |   779  ---  ---  ---  ---  819  ---  ---  ---  ---   777
  28E |    8   11    4    7   17    3   10    7    8   11    3 |    12   18   14   13   22   10   21   12   21   10    12
  29  |   13   20    5    9   12    4   19   11    9   19    4 |    21   29   18   19   24   17   30   18   22   24    18
 X30E |    8  ---  ---  ---  ---   44  ---  ---  ---  ---    0 |    36  ---  ---  ---  ---   23  ---  ---  ---  ---    37
  31  |    6   13    4    7   16    4   12    6   12   17    3 |    10   23   13   12   32   12   22   10   22   10    13
  32  |   12   10    4   10   14    4    7    7    9   17    3 |    15   20   14   17   22   12   21   14   21   18    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    5    8   16    4   14   10   10   18      |T   43   24   19   20   27   42   26   20   23   20    42
 WRMS |    9   14    5    8   15    4   13    9    8   17      |NE  17   22   18   18   25   15   24   18   21   20    16
 MEDI |    9   12    4    8   15    4   13   10   10   16      |MD  18   23   16   17   27   15   23   17   21   18    15

Table 3.1743.2   GPS week: 1743   Day: 2   MJD: 56447.000                            

        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    3    9   12    3   16    6   18   16    3 |    28   36   36   32   44   32   44   32   37   25    33
   2  |   10    9    4    7   12    4    9    9   11   18    3 |    17   17   19   21   18   16   16   21   21   15    17
   3  |    8   11    5    8   11    4    9    6   12   14    3 |    19   22   18   19   15   17   21   17   30   21    17
   4  |   11    9    3    8   16    4    9   17    8   28    4 |    48   52   51   47   55   49   51   50   55   41    49
   5  |    8   14    4   12   16    3   17   10    9   17    4 |    17   22   13   16   22   13   24   17   24   20    13
   6  |    6   10    5    9   11    4   10    7   11   12    3 |    14   21   14   17   16   14   21   14   25   18    13
   7  |    8   13    5    8   22    4   13    9    8   33    3 |    25   26   23   24   30   21   23   24   29   38    21
   8  |   10    8    4    9   16    2    8    7    4   10    3 |    10   12   10   14   16   11   14   14   21    8     9
   9  |    7    8    4    7   14    2    8    6    7   21    2 |    13   15   13   13   17   12   15   15   23   21    12
  10  |    8    9    3   10   12    3   11    9    7   15    3 |    17   25   23   23   28   21   25   21   29   20    21
  11  |    9   11    3    6   14    3    9    8   11   14    3 |    22   32   26   23   40   24   34   25   33   21    25
  12E |   15   23    6   12   24    5   22    8   11   13    5 |    27   25   19   22   29   18   26   19   30   21    19
  13E |    6   12    3    7   15    4   13    8    9    9    3 |    15   23   17   17   28   16   21   18   27   18    16
  14E |    8   12    3   10   12    2    9    5    7   18    3 |    22   21   20   20   25   20   22   21   29   23    20
  15E |   14   18    5    9   16    3   21    7   10   12    4 |    21   21   20   23   22   18   25   22   26   21    18
  16E |    6   13    6   13   19    4   10   11   10   12    4 |    20   24   20   21   31   22   23   20   32   19    20
  17  |    8   15    4   10   17    3   13    7    8   13    3 |    15   22   13   15   27   13   23   12   26   12    13
  18  |    6   15    5    7   14    2   14    6    9   17    3 |    20   23   18   20   27   19   22   20   27   16    18
  19  |    5   15    4   11   18    3   15   10    7   29    3 |    13   24   14   14   25   13   23   14   26   22    14
  20  |    7   14    4    8   11    4   12    6   10   15    3 |    20   23   19   21   26   21   23   21   29   16    19
  21  |    6   10    5    8   18    3   14    7    9   33    3 |    19   17   16   15   24   19   22   17   23   30    15
  22  |    7   10    5    8   15    2   14    6   11   15    3 |    23   22   21   21   31   22   23   23   28   20    20
  23E |    9   12    4   11   14    3   14    8   11   11    3 |    14   19   16   18   20   15   19   17   26   19    14
  24  |   10   13    4    6   18    4   12    5    8   13    3 |    26   22   20   24   26   18   26   20   25   24    19
  25E |    8   16    6    9   19    3   15    8   11   15    4 |    23   33   25   23   31   23   34   21   29   24    23
  26E |   15   18    7   12   21    6   20   15   11   23    5 |    47   52   50   54   53   50   50   52   48   57    49
 X27  |    8  ---  ---  ---  ---   79  ---  ---  ---  ---    0 |   439  ---  ---  ---  ---  451  ---  ---  ---  ---   441
  28E |   10    9    4    9   14    3   13    9    6   11    3 |    12   18   14   17   22   14   19   15   26   14    12
  29  |   11   17    5    9   12    3   17    7    8   18    3 |    24   30   23   24   28   24   31   23   31   27    23
 X30E |    8  ---  ---  ---  ---   29  ---  ---  ---  ---    0 |    30  ---  ---  ---  ---   25  ---  ---  ---  ---    31
  31  |   13   13    4    9   22    3   14    7   11   18    4 |    19   22   18   18   36   17   23   13   31   14    16
  32  |    9   10    4    9   10    3    8    7   12   17    3 |    14   19   12   14   18   11   20   12   23   18    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    4    9   16    3   13    8   10   18      |T   34   24   20   21   27   33   25   21   28   22    33
 WRMS |    9   13    4    9   14    3   12    7    8   17      |NE  20   23   19   20   27   19   24   20   28   22    18
 MEDI |    8   12    4    9   15    3   13    7    9   15      |MD  20   22   19   20   26   18   23   20   27   20    18

Table 3.1743.3   GPS week: 1743   Day: 3   MJD: 56448.000                            

        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  |   14   10    4    7   12    5   17    8   16   15    4 |    29   42   38   36   51   34   45   39   38   30    37
   2  |   11    7    5   12   12    5    8   10    9   17    3 |    17   18   18   24   22   17   16   23   21   17    17
   3  |    9   12    3    8   13    6   11    9   10   16    3 |    25   27   22   24   18   22   23   20   32   23    22
   4  |   10    7    4    9   15    6    9    7   10   25    3 |    21   30   29   27   36   27   28   29   31   26    27
   5  |   12   16    5   10   15    3   18    9   10   17    4 |    22   27   19   20   24   19   29   19   24   25    19
   6  |    7   10    5    7   12    4   10    9   10   14    3 |    21   23   19   20   17   19   22   18   28   19    18
   7  |    9   12    4    8   23    5   11    7   12   35    3 |    24   22   19   23   30   19   22   19   27   35    19
   8  |    9    8    4    6   15    3    7    7    9   15    2 |    13   17   16   20   18   14   16   19   18   18    15
   9  |    7    9    5    7   15    3    9    7    8   22    3 |    18   21   19   20   21   17   21   19   25   26    18
  10  |    9    7    3    8   12    3    9    7    8   11    2 |    13   20   17   16   23   15   20   18   23   17    16
  11  |   11   12    3    8   15    5   13    9   13   15    3 |    25   37   27   24   43   28   35   30   31   23    27
  12E |   11   26    6   13   24    5   19   11   13   15    5 |    21   28   21   21   29   17   27   21   19   22    19
  13E |    8   10    5   10   14    4   12    7    6   11    3 |    19   24   21   17   30   19   25   22   25   22    19
  14E |    8   12    4    8   17    4   10   11   13   15    3 |    26   25   25   25   31   26   26   25   27   22    24
  15E |   11   19    5   12   26    5   19    9   13   19    5 |    23   26   20   25   24   19   25   24   26   20    20
  16E |    9   13    4   11   18    4   10   12   11   13    3 |    24   28   27   28   29   25   28   26   32   25    25
  17  |    9   13    5   10   17    5   15    6    7   13    3 |    17   22   16   19   29   18   22   17   24   17    16
  18  |    7   14    6    8   15    4   18    6   12   17    3 |    20   23   19   21   27   20   24   20   19   13    17
  19  |    7   12    3    9   17    4   14   11   12   29    3 |    16   24   18   19   25   17   24   17   26   20    17
  20  |    9   14    6   12   18    3   11    7   10   16    3 |    19   25   20   23   30   21   24   22   25   16    20
  21  |    9   24    7    7   19    7   10    5   13   33    4 |    19   31   23   18   24   17   17   18   17   28    17
  22  |    6   12    6    9   15    3   13    6   11   16    3 |    23   24   23   24   32   22   23   24   22   18    21
  23E |   10   12    5   12   19    4   12    8   10   15    3 |    26   31   30   29   31   29   31   28   37   30    29
  24  |   11   13    5    7   18    4   10   10    9   12    3 |    24   27   25   24   33   25   30   26   28   24    24
  25E |    9   14    5    6   17    3   12    8   11   20    3 |    23   27   22   20   26   21   29   19   26   20    21
  26E |   17   20    8   11   14    7   16   17   11   24    5 |    70   74   71   69   76   71   69   71   77   75    71
 X27  |    8  ---  ---  ---  ---   50  ---  ---  ---  ---    0 |   602  ---  ---  ---  ---  616  ---  ---  ---  ---   601
  28E |    9   10    4    9   18    3    8    6    8   10    3 |    16   19   16   17   27   16   21   15   24   18    16
  29  |   12   18    5   10   12    4   18    8   13   17    4 |    23   31   26   24   27   26   32   23   33   29    25
 X30E |    8  ---  ---  ---  ---   61  ---  ---  ---  ---    0 |    46  ---  ---  ---  ---   25  ---  ---  ---  ---    47
  31  |   10   14    6    8   22    5   13    8   18   15    4 |    20   22   19   20   36   19   23   15   26   14    17
  32  |    6    9    4   10   14    4    8    7   10   15    3 |    18   21   15   18   20   16   21   14   23   20    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    5    9   17    4   13    9   11   19      |T   41   27   23   23   29   41   26   23   27   23    41
 WRMS |   10   14    5    9   15    4   12    8   10   18      |NE  19   24   20   21   27   19   22   20   24   22    19
 MEDI |    9   12    5    9   15    4   11    8   10   15      |MD  21   25   20   21   27   19   24   20   26   22    19

Table 3.1743.4   GPS week: 1743   Day: 4   MJD: 56449.000                            

        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    8    4    7   12    3   15    7   14   17    3 |    35   41   39   37   46   35   49   37   31   30    37
   2  |    5    8    5    8   10    4   12   12    9   17    3 |    20   20   24   23   23   18   23   24   19   20    20
   3  |   11   14    3    9   11    4   13    7    8   16    3 |    18   27   21   23   20   19   26   22   25   23    20
   4  |    7    9    4    8   15    4   10    8    7   26    3 |    29   34   34   28   38   28   35   29   30   28    31
   5  |   12   17    4   10   16    3   17   11    9   16    4 |    27   36   24   25   31   24   33   24   26   32    24
   6  |    9   10    4    7   10    4   12    8    7   12    3 |    18   25   20   19   21   16   23   19   23   20    18
   7  |    9   11    4    7   17    5   15   10    9   38    3 |    24   25   21   18   31   18   25   19   24   34    19
   8  |   10    8    3    7   12    3    9    9    6   16    3 |    15   19   17   15   21   15   22   19   20   19    16
   9  |    7    8    4    7   12    3   10    6    7   23    2 |    16   21   20   17   21   16   25   17   20   25    17
  10  |   10    7    4    7   11    4    9    8   10   12    3 |    15   21   20   15   23   15   21   18   18   21    17
  11  |   10   13    4    9   13    3   12   12   11   17    3 |    30   42   34   31   43   30   45   34   29   30    33
  12E |   12   29    7   13   25    4   22   11   10   12    5 |    26   34   21   22   35   20   34   23   22   22    21
  13E |    9   14    4   10   12    3   13   10    8   13    3 |    18   24   20   19   27   17   24   21   23   19    18
  14E |    8   12    4    9   16    4   12    9   11   18    3 |    24   23   22   22   28   19   23   21   27   25    20
  15E |    7   17    5    8   18    3   21   10    9   18    4 |    22   25   20   21   23   18   24   22   23   26    19
  16E |   12   18    5   14   16    3   11   14   10   13    4 |    18   24   19   20   26   17   22   19   26   18    17
  17  |   11   13    4    8   17    3   12    5   10   15    3 |    23   23   20   19   32   17   26   19   23   17    19
  18  |   11   18    6    9   15    4   17    9    6   18    4 |    20   24   17   22   27   16   25   17   16   17    16
  19  |   10   15    5   12   15    3   15   12    5   29    4 |    14   27   20   19   28   16   26   19   21   25    18
  20  |   10   15    4   10   14    3   10    4    7   15    3 |    18   24   18   19   26   17   25   19   21   15    18
  21  |    9   10    4    6   11    3   11   10   10   35    3 |    18   24   21   20   26   17   23   17   19   34    19
  22  |    8   16    5    7   13    4   15    7    6   15    3 |    20   24   21   21   30   18   24   20   20   18    19
  23E |    9   13    4   11   17    3   13    8    8   15    3 |    20   24   24   20   25   22   29   18   29   23    21
  24  |   13   13    4    6   17    4   12    8    8   13    3 |    21   24   19   19   29   16   27   21   23   22    19
  25E |   11   14    5    4   12    3   12   10   10   21    3 |    33   39   36   33   40   34   44   37   36   45    35
  26E |   14   18    6   15   21    4   19   20   13   23    5 |    35   43   37   36   45   34   44   37   37   42    36
 X27  |    7  ---  ---  ---  ---   59  ---  ---  ---  ---    0 |   325  ---  ---  ---  ---  352  ---  ---  ---  ---   323
  28E |    8   10    3    8   17    3    8   10    8   20    3 |    17   25   21   18   25   19   25   22   24   25    19
  29  |   10   18    6    8   15    4   17   13   10   18    4 |    26   33   29   24   31   27   34   26   28   32    26
 X30E |    7  ---  ---  ---  ---   43  ---  ---  ---  ---    0 |    46  ---  ---  ---  ---   32  ---  ---  ---  ---    46
  31  |    9   14    5    5   15    3   12    8    9   15    3 |    18   24   20   18   34   17   25   19   26   15    19
  32  |   10    8    4    8   12    3    9    7   10   15    3 |    17   19   17   15   20   13   23   13   19   20    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    5    9   15    4   14   10    9   19      |T   32   27   23   21   29   31   28   22   24   24    31
 WRMS |   10   14    4    8   14    4   13    9    8   19      |NE  20   25   21   19   28   18   26   20   22   24    19
 MEDI |   10   13    4    8   15    3   12    9    9   16      |MD  20   24   21   20   27   18   25   20   23   23    19

Table 3.1743.5   GPS week: 1743   Day: 5   MJD: 56450.000                            

        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  |   17   10    5    7   12    4   18    6   17   20    4 |    17   35   30   26   41   24   37   28   24   22    26
   2  |    6    9    6    9   12    2   11   11   11   17    3 |    17   14   14   17   18   11   13   20   14   19    12
   3  |    9   11    5    9   12    4   12   10    9   16    3 |    17   19   14   20   18   14   21   19   23   19    15
   4  |    8    7    4    8   13    4   10   10    9   27    3 |    20   26   26   20   34   19   25   21   23   23    22
   5  |   11   15    6   12   17    4   19    8   13   17    4 |    21   30   22   21   26   20   32   23   25   30    22
   6  |    8    9    4    8   11    4   11   11   11   14    3 |    16   17   13   17   20   11   20   18   21   16    13
   7  |   10   11    5   12   19    6   15   10   10   39    4 |    21   28   23   28   29   23   28   29   27   45    24
   8  |   11    9    5   11   13    4    9   14    6   18    3 |    11   18   14   15   17   13   18   18   17   14    12
   9  |   10    8    6    9   11    3   10   11    7   24    3 |    16   19   17   16   16   14   20   18   17   22    15
  10  |    7    7    4   10   14    3   13    9    7   12    3 |    11   17   14   13   22   11   16   16   15   18    13
  11  |   11   12    4    8   13    4   10    7   11   15    3 |    21   33   25   23   39   23   31   24   25   21    24
  12E |   10   29    7   13   23    5   24    9   12   11    5 |    17   28   18   18   29   13   27   17   20   18    16
  13E |   12   13    4    9   13    3   14    8    8   11    3 |    20   19   15   17   25   13   20   15   19   17    15
  14E |    9   11    4    8   14    4   10    9    9   20    3 |    23   23   24   22   28   22   27   24   25   25    23
  15E |   10   16    4   11   24    5   20   10   10   18    4 |    24   21   21   24   23   19   23   23   23   25    20
  16E |   11   16    5   14   22    5   12   15    9   12    4 |    19   25   19   18   35   17   21   20   25   18    18
  17  |    9   17    5   10   19    3   19    7    9   16    4 |    18   21   14   18   29   14   24   18   21   19    15
  18  |    7   15    6    9   19    4   18    7    6   18    4 |    18   22   16   22   32   17   22   17   16   15    15
  19  |    8   14    4   10   15    5   18   13   10   29    4 |    10   20   13   14   29   11   24   12   22   21    13
  20  |    8   12    5    9   12    5   13    9   12   16    3 |    16   21   16   14   27   15   21   18   21   16    15
  21  |    7   10    5    7   17    5   12    7    8   35    3 |    13   15   17   14   23   11   15   14   15   29    13
  22  |    7   13    5    7   18    3   13    8    6   17    3 |    19   22   18   21   35   19   21   18   20   18    18
  23E |   11   14    4   10   17    4   12   10    8   15    3 |    26   27   24   25   29   24   25   26   28   27    24
  24  |   14   11    6    7   12    5   14   14    8   12    4 |    31   28   27   26   30   26   32   29   27   30    26
  25E |   14   17    7    6   18    5   14   10   11   11    4 |    37   41   40   34   41   36   40   32   44   39    37
  26E |   12   16    7   12   16    5   15   17    8   23    4 |    70   67   67   66   66   67   69   73   69   73    68
 X27  |    8  ---  ---  ---  ---   48  ---  ---  ---  ---    0 |   463  ---  ---  ---  ---  471  ---  ---  ---  ---   463
  28E |   10    9    4    8   17    3   11    5    8   10    3 |    24   26   22   23   31   22   27   24   27   23    22
  29  |    9   18    6   11   15    4   19   18    8   20    4 |    28   30   23   26   25   22   30   32   26   32    24
 X30E |    8  ---  ---  ---  ---   54  ---  ---  ---  ---    0 |    31  ---  ---  ---  ---   21  ---  ---  ---  ---    31
  31  |    8   13    4    6   15    4   12   10   10   14    3 |    16   20   14   14   29   14   21   13   21   14    14
  32  |    9    9    4    8   14    3    9   10   10   16    3 |    12   19   14   12   21   11   19   10   21   18    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    5    9   16    4   14   11   10   19      |T   35   25   21   21   28   33   25   22   24   24    34
 WRMS |   10   13    5   10   15    4   14   10    8   18      |NE  17   21   18   18   25   16   22   19   20   23    17
 MEDI |    9   12    5    9   15    4   13   10    9   16      |MD  19   22   18   20   29   17   23   19   22   21    18

Table 3.1743.6   GPS week: 1743   Day: 6   MJD: 56451.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1M |   11    8    3    9   13    4   16    9   12   25    3 |    36   48   48   46   61   43   55   48   40   40    45
   2M |    7    7    4   10   10    2    9   11    8   19    3 |    22   20   23   27   26   20   21   28   22   26    21
   3  |    7    9    4    7   13    4   11   11    8   18    3 |    18   24   18   21   18   18   25   25   27   24    18
   4  |    7    8    4    8   13    2    8   10    6   31    2 |    27   32   35   33   44   30   34   34   32   37    32
   5  |    8   12    4    8   14    3   13   10    7   18    3 |    28   34   25   26   28   25   37   26   28   35    26
   6M |    7    9    5    6   13    4    9   10    7   15    3 |    20   28   24   23   25   22   26   21   28   25    22
   7  |    8   10    4    8   18    5   12   10   10   41    3 |    23   23   19   21   29   19   24   21   25   39    19
   8  |    8    8    4    5   12    3   10   14    7   19    3 |    14   19   18   17   17   16   22   24   21   21    16
   9  |    7    8    5    5   12    2    9   12    6   25    2 |    17   20   21   18   18   17   23   21   24   27    18
  10  |    7    6    4   10   12    2    6   10    5   16    2 |    17   21   20   19   28   17   25   22   22   22    19
  11M |    8   11    3    8   15    3   11    6    8   15    3 |    27   36   31   29   48   28   37   32   26   25    30
  12E |   10   26    6   15   21    5   20   12   10   12    5 |    19   28   17   20   27   15   25   18   18   17    16
  13E |    8   11    5    9   12    2   12   19    8   12    3 |    21   26   20   19   31   19   26   26   26   21    20
  14E |    8   10    4    6   19    4   10   10    9   16    3 |    18   23   19   16   27   18   25   20   25   23    18
  15E |   12   17    5    6   13    2   18   12   12   23    4 |    25   22   22   21   24   19   23   25   26   26    20
  16E |   10   17    6   13   19    4   13   12    8   13    4 |    16   25   21   19   30   17   25   18   22   19    18
  17  |    6   13    5    9   16    4   15   10    9   19    3 |    19   20   18   21   33   18   23   22   24   22    18
  18M |    9   17    7    8   16    4   15   13    6   24    4 |    24   27   24   25   32   22   24   25   22   23    21
  19M |    6   14    5   10   19    5   16   20    7   37    4 |    16   27   21   18   34   18   27   25   27   26    20
  20M |    8   13    4   10   13    3   11   13   10   16    3 |    20   25   22   24   36   21   25   25   23   18    21
  21  |    7   10    8    7   16    5   14   11   12   35    3 |    18   22   22   18   32   17   21   20   21   33    18
  22  |    8   13    6    8   15    3   12   10    9   17    3 |    21   26   24   25   37   22   26   24   19   19    22
  23E |   11   12    4   11   32    3   14   15    7   18    4 |    25   26   26   25   29   22   28   22   26   28    23
  24  |   10   12    5    8   16    3   13    9    9   11    3 |    20   23   19   17   24   17   24   20   19   19    17
  25  |    9   17    6    7   15    6   15   18   13   57    4 |    98  100   98   95   99   92  100  102   90  116    96
  26E |   11   17    5   11   15    4   16   20    8   21    4 |    76   75   76   72   74   74   73   76   74   78    74
 X27M |    8  ---  ---  ---  ---   55  ---  ---  ---  ---    0 |   464  ---  ---  ---  ---  481  ---  ---  ---  ---   466
  28E |    7    9    4    5   14    3   14   21    8   29    3 |    16   24   20   19   29   18   25   28   26   30    19
  29M |   10   13    5    8   12    4   16   23   12   20    4 |    57   59   54   51   54   53   58   56   57   67    54
 X30  |    8  ---  ---  ---  ---   60  ---  ---  ---  ---    0 |    34  ---  ---  ---  ---   21  ---  ---  ---  ---    35
  31  |   11   13    5    6   18    5   11    9    8   16    3 |    18   22   18   18   34   18   23   18   26   15    18
  32M |   10    9    5    7   14    4    9   14   10   18    3 |    17   22   18   15   27   14   23   17   23   23    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    5    9   16    4   13   13    9   24      |T   40   30   28   27   35   39   31   29   29   31    40
 WRMS |    8   13    5    9   16    4   12   11    7   19      |NE  20   23   21   21   28   19   25   23   24   26    20
 MEDI |    8   11    5    8   14    4   12   11    8   18      |MD  20   25   21   21   29   19   25   24   25   25    20



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 4.1743   GPS week: 1743   MJD: 56445.0-56451.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |U    7     5    15 |U    9    11    38 |U    8     7    20 |
emr | emr 2876 |     8     6    20 |U   12    25    40 |     9     9    26 |
esa | esa 2880 |     6     5    16 |U    8    13    39 |     8     7    21 |
gfz | gfz 2876 |U    6     5    16 |U    9    10    38 |U    8     6    20 |
grg | grg 2879 |U   14    13    35 |U   13    20    58 |    14    13    34 |
igr | igr 2877 |     6     5    16 |     8    10    29 |     8     7    20 |
igs | igs 2860 |     6     5    16 |     8    14    40 |     8     7    22 |
jpl | jpl 2876 |     7     6    19 |    10    24    39 |     9     9    27 |
mit | mit 2880 |     6     5    17 |U    9    23    42 |U    9     8    24 |



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 5.1743.0   GPS week: 1743   Day: 0   MJD: 56445.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3040 |     5     5    12 |     4     7    17 |     6     7    18 |
emr | emr 2878 |     6     7    17 |     7    21    23 |     6     8    27 |
esa | esa 2880 |     4     4    13 |     4     6    17 |     7     8    18 |
gfz | gfz 2876 |     5     5    14 |     6     7    24 |     7     8    18 |
grg | grg 2880 |    13    11    31 |    10    16    44 |    15     8    38 |
igr | igr 2880 |     5     5    14 |     4     6    17 |     6     7    19 |
igs | igs 2880 |     5     5    13 |     5     6    16 |     6     7    19 |
jpl | jpl 2877 |     6     6    16 |     6    11    21 |     7     9    26 |
mit | mit 2880 |     5     6    16 |     5    25    29 |     7     8    27 |

Table 5.1743.1   GPS week: 1743   Day: 1   MJD: 56446.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3026 |     5     4    11 |     6    11    23 |     7     8    17 |
emr | emr 2876 |     6     6    15 |     8    22    27 |     9    10    23 |
esa | esa 2880 |     4     5    11 |     6    10    19 |     7     9    18 |
gfz | gfz 2876 |     5     4    13 |     6    10    22 |     7     7    17 |
grg | grg 2880 |     9     9    29 |    11    24    54 |    12    18    40 |
igr | igr 2880 |     4     4    12 |     5     8    19 |     6     7    18 |
igs | igs 2842 |     4     4    11 |     6    10    22 |     7     8    18 |
jpl | jpl 2876 |     6     7    11 |     8    23    27 |     8     8    23 |
mit | mit 2880 |     4     4    12 |     6    24    27 |     9    10    25 |

Table 5.1743.2   GPS week: 1743   Day: 2   MJD: 56447.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     4     4    14 |     7     6    29 |     7     8    21 |
emr | emr 2876 |     7     5    18 |     9    25    25 |     9     9    27 |
esa | esa 2880 |     4     5    12 |     7     8    23 |     8     7    20 |
gfz | gfz 2877 |     4     3    13 |     6     7    25 |     8     7    19 |
grg | grg 2875 |    10    10    16 |    11    19    47 |    11    10    21 |
igr | igr 2879 |     5     4    12 |     6     8    21 |     8     7    20 |
igs | igs 2835 |     5     3    12 |     7     6    26 |     8     8    26 |
jpl | jpl 2876 |     7     5    15 |     9    31    29 |     9    10    30 |
mit | mit 2880 |     5     4    12 |     8    25    25 |     9     7    24 |

Table 5.1743.3   GPS week: 1743   Day: 3   MJD: 56448.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3017 |     5     4    14 |     7     7    32 |     9     8    26 |
emr | emr 2876 |     8     5    18 |    11    21    34 |    11    10    32 |
esa | esa 2880 |     6     4    15 |     6     7    28 |     9     7    28 |
gfz | gfz 2876 |     6     4    15 |     6     7    27 |     9     7    28 |
grg | grg 2880 |    11    12    30 |    14    20    59 |    16     9    33 |
igr | igr 2860 |     6     4    15 |     6     7    26 |     9     7    28 |
igs | igs 2835 |     6     3    14 |     7     6    28 |     8     7    29 |
jpl | jpl 2875 |     7     4    16 |     8    26    37 |    10     8    33 |
mit | mit 2880 |     6     4    14 |     8    23    36 |     8     8    26 |

Table 5.1743.4   GPS week: 1743   Day: 4   MJD: 56449.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3030 |    13    10    21 |     8     8    27 |     8     4    15 |
emr | emr 2876 |    10     8    24 |    10    24    35 |    11     8    20 |
esa | esa 2880 |     8     7    20 |     8     8    23 |     8     4    14 |
gfz | gfz 2876 |     8     7    21 |     8    10    27 |     8     4    13 |
grg | grg 2880 |    14    12    26 |    13    18    57 |    11     9    33 |
igr | igr 2880 |     8     6    19 |     7     8    23 |     7     4    14 |
igs | igs 2878 |     8     6    20 |     8    23    36 |     8     4    14 |
jpl | jpl 2876 |     9     7    26 |     8    22    36 |    11    11    25 |
mit | mit 2880 |     8     7    20 |     7    22    34 |     8     6    17 |

Table 5.1743.5   GPS week: 1743   Day: 5   MJD: 56450.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3011 |     8     7    18 |    26    29   105 |    10     8    24 |
emr | emr 2876 |     9     7    29 |    31    42   109 |    12    11    29 |
esa | esa 2880 |     7     6    20 |    21    45   144 |    11     9    25 |
gfz | gfz 2876 |     8     6    20 |    22    17   119 |    10     8    25 |
grg | grg 2880 |    35    34    98 |    22    22    96 |    22    27    43 |
igr | igr 2880 |     7     6    19 |    21    28    75 |    10     9    26 |
igs | igs 2879 |     7     6    20 |    16    27   118 |    10    10    25 |
jpl | jpl 2876 |     7     7    25 |    17    26    88 |    11    10    31 |
mit | mit 2880 |     8     7    20 |    20    24   110 |    11    11    21 |

Table 5.1743.6   GPS week: 1743   Day: 6   MJD: 56451.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     7     4    16 |     7     9    31 |     8     6    21 |
emr | emr 2876 |    11     7    22 |    11    19    29 |     9     9    25 |
esa | esa 2880 |     8     6    21 |     6     8    23 |     7     6    21 |
gfz | gfz 2876 |     7     6    18 |     6    11    26 |     7     5    21 |
grg | grg 2880 |     8     5    18 |    10    18    48 |    12     9    29 |
igr | igr 2880 |     8     6    20 |     6     8    23 |     7     6    20 |
igs | igs 2876 |     8     6    20 |     7    21    31 |     8     7    22 |
jpl | jpl 2876 |     9     8    23 |    11    32    37 |     9     9    22 |
mit | mit 2880 |     8     5    21 |     7    21    33 |    11     9    26 |


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 6.1743   GPS week: 1743   MJD: 56445.500-56451.500

                                                         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     -20     -40    -165      2 |       3     22
            |      15      15      41      90      3 |       2
emr   uuuuu |      26      17      52     178     -8 |      34     39
            |      18      21      35      76      9 |       2
esa   uuuuu |      -4     -12      52     -39      0 |      17     26
            |      11       9      26      42      4 |       2
gfz   uuuuu |      15      27     -70     -32     -2 |       9     22
            |      17      14      39      49      2 |       3
grg   uuuux |      19      -3      22     -15     16 |     -10     41
            |      14       5      37      56     34 |       5
igr   xxxxx |     -33     -11       9      53      3 |      -3     20
            |      14       9      37      33      5 |       1
irf   xxxxx |      13       6     -39       0     -2 |       3     20
            |       5       8      28      16      3 |       2
jpl   uuuuu |      50     -25      17      94     -1 |      34     40
            |      25      15      76      59     11 |       3
mit   uuuuu |      12       2    -105      50     -3 |      16     25
            |      14      16      72      66      5 |       3
ngs   uuuuu |     -28      26      30      48      3 |       8     18
            |      62      40     100      72      5 |       1
sio   xxxxx |     274     165      76     158     -6 |      34     39
            |      60      37     105      51      4 |       4


Table 7.1743.0   GPS week: 1743   Day: 0   MJD: 56445.500

                                                         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 |     -65     -22     -46    -195      4 |       2     24
emr   uuuuu |      25      -8      75     161    -10 |      34     40
esa   uuuuu |     -14     -10      66     -38     -6 |      17     28
gfz   uuuuu |      31      19     -65      52     -1 |       9     26
grg   uuuux |      11      -7      37      42     16 |      -7     40
igr   xxxxx |     -49     -18      -9      19     -2 |      -4     23
irf   xxxxx |      14      -5     -22     -29      2 |       2     23
jpl   uuuuu |      64     -44     115     187      9 |      29     37
mit   uuuuu |      10     -15     -95     -58      4 |      14     27
ngs   uuuuu |     -17      72    -118     -14     -1 |       7     20
sio   xxxxx |     343     172     123     117     -3 |      34     42

Table 7.1743.1   GPS week: 1743   Day: 1   MJD: 56446.500

                                                         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     -26     -36    -150      1 |       6     24
emr   uuuuu |      61       1      78     318      8 |      36     41
esa   uuuuu |     -25     -10      19     -25     -3 |      20     29
gfz   uuuuu |       2      41      -8     -43     -2 |      13     26
grg   uuuux |      34     -11     -29       0     33 |      -4     41
igr   xxxxx |     -10      -5      28       9     -1 |      -1     22
irf   xxxxx |      21      -2     -12     -12     -4 |       6     22
jpl   uuuuu |      46     -45      45     102      7 |      34     40
mit   uuuuu |      31      -8     -85     -33     -6 |      19     28
ngs   uuuuu |     -20      44      17     -10      1 |      10     20
sio   xxxxx |     377     179      54     106    -10 |      38     44

Table 7.1743.2   GPS week: 1743   Day: 2   MJD: 56447.500

                                                         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 |     -41     -14      15     -43      0 |       4     22
emr   uuuuu |      16      43      70     192     -4 |      35     40
esa   uuuuu |       0      -2      18     -85      4 |      17     26
gfz   uuuuu |       8       7     -58     -48     -1 |      11     23
grg   uuuux |      36       5      49      58    -16 |      -5     40
igr   xxxxx |     -38      -9     -49      66      4 |      -3     20
irf   xxxxx |      15       1     -17      11      1 |       4     20
jpl   uuuuu |      32      -6      66      88      8 |      34     40
mit   uuuuu |      10     -17     -41      74      0 |      17     26
ngs   uuuuu |     -34       1     -70     -19     -1 |       9     18
sio   xxxxx |     262     156     159     197     -8 |      36     42

Table 7.1743.3   GPS week: 1743   Day: 3   MJD: 56448.500

                                                         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     -49    -118     -93      7 |       5     22
emr   uuuuu |       3      11      71     201     -6 |      36     41
esa   uuuuu |       3     -13      49     -96      6 |      19     26
gfz   uuuuu |      -3      19     -56     -79     -5 |      11     23
grg   uuuux |       2      -1     -30     -23    -38 |     -11     39
igr   xxxxx |     -50     -21      -8      91     11 |      -2     19
irf   xxxxx |      15       7     -37       2     -3 |       5     19
jpl   uuuuu |       5     -32    -101      22     -2 |      37     42
mit   uuuuu |     -12       7     -28     101     -2 |      19     26
ngs   uuuuu |      99      79     167     143     -2 |       9     19
sio   xxxxx |     229     106     183     222     -7 |      37     42

Table 7.1743.4   GPS week: 1743   Day: 4   MJD: 56449.500

                                                         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 |     -39      -3     -28    -192      1 |       4     21
emr   uuuuu |      30      45      44     172    -15 |      35     39
esa   uuuuu |       2     -29      77     -35     -1 |      18     25
gfz   uuuuu |       0      28     -98     -92     -1 |       9     21
grg   uuuux |      18      -1      26     -94     26 |     -16     42
igr   xxxxx |     -27       6       4      29      9 |      -2     19
irf   xxxxx |      14       9     -28      -4     -8 |       3     17
jpl   uuuuu |      78     -19     -70     112    -16 |      36     41
mit   uuuuu |      22      19     -94      79    -11 |      16     23
ngs   uuuuu |     -69      10      35     129     11 |       8     16
sio   xxxxx |     234     164     126     179    -12 |      34     38

Table 7.1743.5   GPS week: 1743   Day: 5   MJD: 56450.500

                                                         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 |     -49     -19     -52    -328      1 |       1     21
emr   uuuuu |      26      21     -21     134    -10 |      30     36
esa   uuuuu |       1     -14      53     -22     -1 |      15     23
gfz   uuuuu |      31      49     -69     -11     -4 |       5     20
grg   uuuux |      29      -3      58     -14     65 |     -16     42
igr   xxxxx |     -23     -16      65      79      1 |      -4     19
irf   xxxxx |       9      15     -65      19      0 |      -1     18
jpl   uuuuu |      61     -20      24     124      4 |      33     39
mit   uuuuu |       5       9    -155      95     -2 |      12     22
ngs   uuuuu |     -67      -7     116      99      5 |       6     16
sio   xxxxx |     239     230       9     187     -4 |      29     34

Table 7.1743.6   GPS week: 1743   Day: 6   MJD: 56451.500

                                                         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 |     -38      -5     -13    -158      0 |       3     19
emr   uuuuu |      21       3      45      69    -18 |      31     37
esa   uuuuu |       5      -6      79      29     -1 |      16     24
gfz   uuuuu |      37      28    -134      -4      1 |       6     19
grg   uuuux |       4      -6      45     -73     29 |     -10     43
igr   xxxxx |     -34     -17      33      74      2 |      -3     18
irf   xxxxx |       6      14     -90       8     -2 |       0     17
jpl   uuuuu |      65     -11      37      19    -17 |      34     40
mit   uuuuu |      21      22    -240      89     -3 |      13     22
ngs   uuuuu |     -87     -20      66       8      7 |       8     15
sio   xxxxx |     236     147    -119      93      1 |      29     34



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