[IGSREPORT-21566] Wk 1724 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Feb 8 10:42:20 PST 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1724   (Jan 20, 2013 - Jan 26, 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:

igs1724[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1724[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1724[0-6].cls  IGS GPS clock combination summary report.
igs17247.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17247.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   | 6 6 KOUC YELL KOUC YELL
                0  |  ESA   | 6 6 UNSA
                0  |  GFZ   | BOGT KIRU MATE QAQ1
                0  |  GRG   | 3 3 MATE MCM4 SYOG USNO FAA1 MATE MCM4 SYOG USNO
                0  |  JPL   | 3 6
                0  |  MIT   | 3 15 16 18 21 3 15 16 18 19 21 JOZ2 JOZ2 TLSE
                1  |  COD   | 6 6 KOUC NTUS FLRS KOUC MCM4 NTUS
                1  |  ESA   | 6 6 NTUS NTUS UNSA
                1  |  GFZ   | BOGT NTUS
                1  |  GRG   | 3 3 MAW1 USNO ABMF LHAZ MAW1 SPT0 USNO
                1  |  JPL   | 3 6
                1  |  MIT   | 3 15 3 15 JOZ2 CONZ JOZ2 MAW1
                2  |  COD   | 4 4 6 KOUC WUHN KOUC WUHN
                2  |  EMR   | 6
                2  |  ESA   | 6 NICO NICO
                2  |  GFZ   | ABMF BOGT GRAS HARB METS TIDB WUHN
                2  |  GRG   | 6 6 HARB HARB NYAL
                2  |  JPL   | 3 6 30 PALM
                2  |  MIT   | 3 4 6 26 3 4 19 26 JOZ2 USNO JOZ2 MDVJ USNO
                3  |  COD   | 6 6 30 FLRS KOUC
                3  |  EMR   | HERS
                3  |  ESA   | 6 6 MATE MATE
                3  |  GFZ   | BOGT BRFT MATE NOVM SEY1 TWTF
                3  |  GRG   | 1 1 IRKT IRKT NKLG
                3  |  JPL   | 6
                3  |  MIT   | 1 3 28 30 1 3 28 30
                4  |  COD   | 6 30 6 30 HERT JOZ2 KOUC PDEL SOFI WROC HERT JOZ2
                4  |  COD   | KOUC SOFI WROC
                4  |  EMR   | HOB2 SFER
                4  |  ESA   | 6 6 HOB2
                4  |  GFZ   | BOGT FLRS WTZR
                4  |  GRG   | 1 1 HOB2 LPGS NKLG SFER LPGS NKLG
                4  |  JPL   | 6
                4  |  MIT   | 3 30 3 30 PDEL SFER PDEL SFER
                5  |  COD   | NTUS NTUS REUN
                5  |  EMR   | 6 6
                5  |  ESA   | NTUS ASPA NTUS
                5  |  GFZ   | BOGT BOR1 NTUS RIOP SUTM
                5  |  GRG   | REUN SOFI MANA REUN SOFI WTZR
                5  |  JPL   | 3
                5  |  MIT   | 6 7 6 7 WTZR
                6  |  COD   | BRMU MAC1 BAKO BRMU
                6  |  ESA   | UNSA
                6  |  GFZ   | 10 30 BOGT FAIR KOUC MANA NRMD WES2
                6  |  GRG   | BRMU MAC1 NYAL WES2
                6  |  JPL   | 6 24 TIXI
                6  |  MIT   | 6 6 19 YELL NTUS NYAL YELL

 5. Starting on 22-Oct-2000 (GPS Week 1085-0; MJD=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. The AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 6. The following table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G31 | 2013_01_23 | 2013008 

 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     .4     .6     -15    -19    -35    -.04
       EMR  |   0 |   -1.8    5.2   19.3      12      6      0    -.08
       ESA  |   0 |     .7   -2.9   -1.4       4   -134    113    -.02
       GFZ  |   0 |     .5     .2    -.2     -35    -34    -12    -.02
       GRG  |   0 |   -3.0   -7.6    5.6     -39     39    -39     .22
       JPL  |   0 |   -7.5   -1.6   21.6    -121    -48    -38     .03
       MIT  |   0 |     .6     .0    9.5     -14     12    -29     .25
       NGS  |   0 |   -3.8   -6.2    1.1     -43     20    -19     .56
       SIO  |   0 |    8.1   -3.6  -29.3      38   -280     21     .16

       COD  |   1 |     .4     .4    -.7     -32     -7    -16    -.02
       EMR  |   1 |    1.4     .7   20.2      15      9      1    -.03
       ESA  |   1 |   -1.3    3.0   -1.1      92   -117     95     .11
       GFZ  |   1 |    -.4     .7   -1.0     -17    -27    -20    -.09
       GRG  |   1 |     .0    -.3    9.9     -33     35    -39     .33
       JPL  |   1 |   -1.7    1.4   21.7     -95    -21    -29    -.19
       MIT  |   1 |    -.3    3.3   11.6     -18      4    -36     .20
       NGS  |   1 |    2.0    1.1    4.3     -15    -26     40     .44
       SIO  |   1 |   10.5    1.4  -14.6      94   -276     49     .07

       COD  |   2 |    -.4    -.3   -1.4     -37      3    -27     .16
       EMR  |   2 |    3.5    7.2   21.4       4     16      8    -.01
       ESA  |   2 |    1.2    3.8   -2.8      90   -144    104     .47
       GFZ  |   2 |    -.9    -.3   -1.9     -24    -19    -19     .15
       GRG  |   2 |    6.4     .7    4.0     -40     30    -20     .56
       JPL  |   2 |    2.0     .6   23.4     -98    -39    -11    -.05
       MIT  |   2 |    4.8    5.2    7.8      -6     -2    -21     .32
       NGS  |   2 |     .0   -2.7    5.7     -41    -15     17     .79
       SIO  |   2 |    9.2    1.0  -16.3     141   -246    126     .16

       COD  |   3 |    -.9     .4   -1.1     -28      8    -24    -.01
       EMR  |   3 |    1.5    4.7   20.2       8     14      2     .03
       ESA  |   3 |    -.9    -.6   -6.8      44   -123    133     .25
       GFZ  |   3 |    -.2     .9   -1.8     -18    -23     -8    -.05
       GRG  |   3 |    -.5   -5.3   -1.8     -19     19    -38     .22
       JPL  |   3 |    2.9     .0   21.1     -85     35    -71     .08
       MIT  |   3 |    2.1   -2.4    6.4     -12      4    -19     .05
       NGS  |   3 |     .1    -.6    7.2     -35    -11     13     .47
       SIO  |   3 |    7.4    2.6  -15.7     130   -198    186    -.14

       COD  |   4 |    -.2     .3    -.6     -37    -12    -19    -.15
       EMR  |   4 |     .7    5.2   18.9      12     16      3    -.09
       ESA  |   4 |   -1.5   -2.4   -3.6      15   -114     94     .20
       GFZ  |   4 |    -.7     .8   -1.2     -26    -40    -19    -.35
       GRG  |   4 |   -2.7   -3.2   -5.0      -4      8    -14    -.05
       JPL  |   4 |     .5   -3.0   24.9     -64     27    -23    -.25
       MIT  |   4 |    1.9    -.9    6.7     -13      8    -33    -.18
       NGS  |   4 |   -4.6    1.9   10.4     -55      2    -28     .19
       SIO  |   4 |    5.3   -2.2   -8.5      71   -165    266    -.28

       COD  |   5 |    -.3     .4    -.4     -41      2     -6    -.16
       EMR  |   5 |     .1    -.1   21.3      11      9      1     .07
       ESA  |   5 |     .8    1.7   -3.3      71   -130     90     .22
       GFZ  |   5 |    -.1     .6   -1.1     -33    -35     -9    -.22
       GRG  |   5 |    3.5   -3.2    -.6      -7     20    -18     .33
       JPL  |   5 |   -5.1    -.3   27.3    -167     -3     59     .13
       MIT  |   5 |   -2.5    1.7    1.7     -10      9    -31    -.01
       NGS  |   5 |   -4.6   -1.8    4.4     -35     22    -31     .32
       SIO  |   5 |    5.1   -1.0  -28.3     103   -217    226    -.18

       COD  |   6 |    -.2     .0    -.5     -45     14      2    -.22
       EMR  |   6 |    2.2    8.8   25.2      23     12     -9    -.10
       ESA  |   6 |   -1.3    4.1   -7.3      94   -123     86     .17
       GFZ  |   6 |    -.2     .7    -.6     -22    -18     -5    -.18
       GRG  |   6 |    3.2    1.4     .0     -13    -30      9     .13
       JPL  |   6 |   -8.0    5.7   29.0     -96    -22    -50     .06
       MIT  |   6 |   -2.6    3.7    8.6      -9      7    -29    -.14
       NGS  |   6 |   -7.2     .5   13.6     -79     30    -50     .48
       SIO  |   6 |     .8    1.6  -10.3     112    -92    357    -.11


 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 1.1724.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1724.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 2.1724.[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 3.1724.[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 5.1724.0-6). 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 1724 summary.                       (Jan 20, 2013 - Jan 26, 2013)

Table 1.1724.a   GPS week: 1724   MJD: 56312.000-56318.000

         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  260|   -1     0    -4    -6    13    -8  -.47   12   11 |    -859      53     18     87
        |    0     0     1    37    17    12   .06           |     515    1056
emr   80|    1    -1    14   -31    -4   -23   .12   16   16 |    2187     641     14    103
        |    0     1     2    23    16     6   .04           |    1641     767
esa  174|    0     0     0    63   -40    23   .08    5    5 |    -661     678     10     99
        |    0     0     1    26    10    14   .03           |    1506    2416
gfz  190|    0    -1    -3   -62   -16     6  -.43   10   10 |     -23      94     19    124
        |    0     0     1    32    31    17   .04           |     383     677
grg  140|    1     1    -6    -1    44    -8   .61   15   14 |     -93       9     16    140
        |    1     0     1    12    15    10   .03           |     273     410
igr  n/a|    0     0    -2   -11    65   -24  -.16    4    4 |    4031     329     16     84
        |    0     0     0    22    15    16   .02           |    1240     813
jpl   80|    1    -1     4   -33     3   -30   .28   13   13 |    3491     609     17    109
        |    1     1     1    25    31    26   .03           |    1606     767
mit  239|    0     0    -1     3     6     7  -.19    6    6 |    -255     313     20    176
        |    0     0     0    19    17     8   .02           |     243     566
ngs  243|    0     0     2   -31    51   -27   .31   10    9 |    -858     -12   1822   3280
        |    0     1     3    38    52    16   .04           |     464     916
sio  258|   -1    -1     1    67  -160   146  -.54   21   18 |     ---     ---    ---    ---
        |    1     0     1    42    52   121   .07           |     ---     ---


Table 1.1724.b   GPS week : 1724   MJD: 56312.000-56318.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1724.0   GPS week: 1724   Day: 0   MJD: 56312.000                            

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    -3    57     4   -13  -.51   12   11 |    -786    -209     19     84
emr   80|    1    -1    13   -27     6   -27   .12   15   15 |    -200    1053     13     90
esa  174|    1     0     1    30   -34    26   .06    5    5 |    1400   -1707      9     96
gfz  192|   -1     0    -2   -98    24     4  -.41   10   10 |    -502     575     19    120
grg  139|    2     1    -4    -8    66   -18   .59   15   14 |    -154      57     19    150
igr  n/a|    0     0    -2    21    64   -29  -.18    4    4 |    2234     807     17     84
jpl   80|    1    -1     2   -38   -25   -26   .30   14   13 |    1224     963     16    109
mit  240|    0     0    -1    -6    23    18  -.19    9    9 |    -312     245     22    180
ngs  245|   -1    -1    -2    28    12   -52   .24   11    9 |    -852    -168   1711   3347
sio  255|   -3    -2     1   -12  -198   -12  -.47   21   18 |     ---     ---    ---    ---

Table 2.1724.1   GPS week: 1724   Day: 1   MJD: 56313.000                            

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  266|   -1     0    -2   -30    -8     0  -.43   11   10 |    -464    -532     18     93
emr   80|    2    -1    11   -42   -17   -19   .16   16   16 |     887     702     13    103
esa  174|    0     0     1    59   -37     4   .10    5    5 |    -461      20      9     91
gfz  190|    0    -1    -3   -12    26    10  -.38   10    9 |     273    -691     17    121
grg  140|    1     1    -4     5    47   -11   .65   16   15 |      18     -11     14    128
igr  n/a|    0     0    -1   -20    47   -47  -.15    4    4 |    2936     410     14     90
jpl   80|    0    -1     3   -47   -14     1   .31   13   13 |    2015     603     17    119
mit  238|    0     0    -1     8    37     0  -.19    5    5 |      49    -121     21    210
ngs  245|    0     2     0   -60   -24   -13   .31   11    9 |    -502    -518   1792   2817
sio  256|   -3     0     0    53  -213    23  -.44   19   16 |     ---     ---    ---    ---

Table 2.1724.2   GPS week: 1724   Day: 2   MJD: 56314.000                            

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    -4   -22    15   -17  -.46   13   12 |   -2005    2054     20     89
emr   80|    1     0    12   -59    21   -24   .14   15   15 |    1631     606     13    100
esa  174|    0     0     0    55   -24    24   .08    5    5 |     512   -2192     10    104
gfz  188|    0    -1    -3   -27   -34     7  -.45   10   10 |      38     492     20    135
grg  141|    2     0    -5   -19    61    -6   .58   16   14 |    -305     335     17    170
igr  n/a|    0     0    -1   -45    86   -33  -.11    4    4 |    3696     532     17     80
jpl   80|    0     0     3   -19    34   -11   .24   14   13 |    2923     821     16    113
mit  240|    0     0    -1    21    -3     6  -.14    6    5 |    -493     991     19    161
ngs  242|    0     0     2   -68    25   -47   .31   11    9 |   -1878    1708   1827   3239
sio  261|   -1    -1     0   118  -210    96  -.52   19   18 |     ---     ---    ---    ---

Table 2.1724.3   GPS week: 1724   Day: 3   MJD: 56315.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  265|    0     1    -2    20     6   -15  -.40   11   10 |    -730    -301     15     86
emr   80|    1    -1    12     0    -6   -24   .12   15   15 |    1951    1770     14    103
esa  174|    0     1     0    56   -41    43   .12    5    5 |     276     764      8     99
gfz  193|    0    -1    -3   -93   -19    -2  -.37   10    9 |     447     633     18    123
grg  144|    0     1    -5     1    43   -18   .57   14   13 |      80     112     16    128
igr  n/a|    0     0    -2     8    57   -28  -.17    4    4 |    4066    1368     15     82
jpl   80|    0     0     6     7    45   -62   .26   14   13 |    3527    1674     15    114
mit  240|    0     0    -1   -20    -9     0  -.20    5    5 |    -357     776     20    179
ngs  245|    0     0     1   -12    63   -12   .34   10    8 |    -781    -110   1807   4021
sio  262|   -1     0     2    89  -156   138  -.58   19   18 |     ---     ---    ---    ---

Table 2.1724.4   GPS week: 1724   Day: 4   MJD: 56316.000                            

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  252|   -2     0    -4     7    15   -22  -.45   12   11 |    -661     205     23     93
emr   80|    2     0    13    -7     4   -22   .16   16   16 |    2690    1036     14    108
esa  174|    0     0     0    41   -40    22   .10    6    6 |   -1791    3514     11     97
gfz  186|    0    -2    -5   -74   -54   -13  -.43   10   10 |    -465     -60     20    132
grg  143|    1     2    -6    10    35   -10   .61   15   13 |    -543     572     18    139
igr  n/a|    0     0    -2   -12    48   -23  -.18    4    4 |    4358     719     18     86
jpl   80|    1     0     4   -20     5   -10   .32   14   13 |    3911    1002     19    116
mit  239|    0     0    -2    28    10    17  -.20    6    6 |    -562     735     17    157
ngs  241|    0     0     6   -49    54   -27   .32   10    9 |    -587      -7   1716   3261
sio  255|   -1     0     1    68  -117   249  -.62   21   19 |     ---     ---    ---    ---

Table 2.1724.5   GPS week: 1724   Day: 5   MJD: 56317.000                            

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  256|   -1     1    -3   -24    47     2  -.56   12   12 |    -713     493     17     84
emr   80|    2    -2    18   -21   -10   -31   .12   16   16 |    4523    -276     17    113
esa  174|    0     1    -1    96   -59    34   .05    6    5 |   -2798    4193     11    107
gfz  192|    0    -1    -4   -71   -40    -1  -.46   11   11 |    -243     669     19    112
grg  140|    0     1    -7    13    30   -10   .61   14   14 |     297    -326     17    122
igr  n/a|    0     0    -1    -4    80     0  -.18    5    5 |    5948    -594     17     84
jpl   80|    1    -2     5   -71    15   -68   .28   13   12 |    5760    -246     21    101
mit  240|    0     1    -1     9    -7    13  -.20    7    7 |      40     189     22    187
ngs  244|    0    -1     2   -64   102   -21   .35   10    8 |    -722     317   1707   3071
sio  258|    0    -1     3    95  -156   203  -.61   21   18 |     ---     ---    ---    ---

Table 2.1724.6   GPS week: 1724   Day: 6   MJD: 56318.000                            

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  257|   -1     0    -7   -53    11    10  -.53   12   12 |    -655   -1339     17     82
emr   80|    1     1    17   -58   -27   -12   .04   16   16 |    3830    -401     17    104
esa  174|    0     1    -3   102   -46     5   .04    6    6 |   -1767     158     12    102
gfz  191|    0    -1    -2   -62   -17    43  -.49   12   12 |     287    -957     20    126
grg  139|    0     2    -6   -14    27    13   .66   14   13 |     -46    -672     17    145
igr  n/a|    0     0    -1   -24    75    -7  -.16    4    4 |    4984    -939     15     82
jpl   80|    2    -2     6   -48   -41   -34   .27   13   12 |    5080    -552     17     97
mit  239|    0     0    -2   -18    -3    -1  -.19    6    6 |    -150    -618     19    159
ngs  243|   -1     0     6     6   126   -18   .30   10    8 |    -684   -1308   2197   3208
sio  259|    0    -1     1    59   -70   325  -.56   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 3.1724.0   GPS week: 1724   Day: 0   MJD: 56312.000                            

        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   21    3    9   11    4   18    6   12   16    4 |    25   30   24   20   34   25   38   26   32   26    25
   2  |   15   18    4   10   11    3   15    9    7   22    4 |    25   31   20   23   22   21   27   25   25   30    22
   3E |   21   19    7   13   14    6   19   11   31   30    6 |    72   75   68   72   70   71   73   70   87   83    71
   4  |   11   10    4    9   13    4   10    9    7   12    3 |    29   27   28   32   32   29   29   29   29   25    29
   5  |   10   13    4   11   13    3   11   11    8   32    3 |    34   36   36   40   42   36   39   37   38   36    37
   6E |   12   17    4   10   13    5   18    9   15   19    4 |    34   31   27   28   31   29   32   32   31   24    28
   7  |   12   18    5    9   21    5   17    9   11   11    4 |    17   27   19   14   37   17   29   21   29   15    20
   8  |   10   12    4   10   14    3   11    9    8   14    3 |    18   22   16   16   21   14   20   16   24   13    17
   9  |   10   18    6   12   23    5   14   11    6   32    4 |    55   61   52   50   57   52   59   48   55   51    52
  10  |   18    8    5    8   11    4   10   10   12   26    3 |    34   29   30   34   37   32   36   32   31   29    32
  11  |   10   18    5    9   20    3   12    6   12   21    4 |    20   32   21   17   43   21   30   22   28   19    23
  12  |   11   16    5   10   19    4   16   10   10   19    4 |    24   26   21   21   35   19   29   23   26   16    23
  13  |   12   14    4   11   22    4   10    8    9   13    4 |    26   32   19   17   40   19   29   19   30   22    23
  14  |    8   13    4    7   13    3    9    9    7   21    3 |    16   23   15   13   23   13   22   15   20   23    16
  15  |   20   15    5   10   16    6   14   10   10   17    4 |    26   29   20   20   31   15   24   17   28   16    21
  16  |   10   12    5   12   15    4   16    8   10   22    3 |    19   23   18   20   30   17   27   21   23   21    20
  17E |   11   14    4    7   12    4   15    9    9   12    3 |    24   28   22   24   30   21   26   24   27   27    24
  18  |    7   13    5   16   17    4   15    8   10   28    4 |    34   33   35   40   37   33   34   35   37   38    35
  19E |   14   15    5   11    9    5   13    7   15   23    4 |    43   34   36   33   33   34   37   35   37   34    34
  20  |   10   10    5   10    9    2    9    7   11   20    3 |    35   38   38   34   40   36   41   35   38   35    36
  21  |    9   16    6   10   13    4   15   10   11   27    4 |    28   33   26   30   33   25   34   24   31   34    28
  22  |    8   11    4    7   10    2   11    7    8   29    2 |    39   35   37   38   41   37   37   37   36   46    37
  23  |    8   16    4    9   16    5   13    8    8   17    3 |    18   29   18   13   31   15   27   18   26   17    19
  24  |   14   27    5    9   14    5   13   12    8   18    4 |    47   39   40   43   52   44   46   49   51   36    45
  25  |   10   17    4   10   17    3   14   10   10   14    4 |    21   21   19   16   29   16   30   20   25   15    20
  26  |    9   14    7    8   13    4   12    9    7   15    3 |    17   22   13   16   18   11   19   17   17   11    15
 X27  |    8  ---  ---  ---  ---   73  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---   31  ---  ---  ---  ---    44
  28  |    9   12    4    7   17    4   12    7   12   16    3 |    20   28   20   16   28   16   26   19   27   18    20
  29E |    9   18    5    9   11    4   18   10   12   16    4 |    25   21   19   23   20   19   20   19   27   19    19
  30  |   11    9    4    8   13    4   11    7    7   24    3 |    14   17   16   15   23   14   22   15   23   24    16
  31  |   10   15    4    8   22    3   20    9   11   11    4 |    11   21   12   10   37   11   24   14   22    7    16
  32  |    8   11    4    7   13    2    8    7   12   33    3 |    19   24   21   20   30   21   28   22   20   27    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   15    5   10   15    4   14    9   11   21      |T   28   30   26   26   34   25   32   26   31   27    27
 WRMS |   11   15    5   10   14    4   13    9    9   18      |NE  26   29   24   24   33   23   31   25   29   25    26
 MEDI |   10   15    4    9   13    4   13    9   10   19      |MD  25   29   21   21   33   21   29   23   28   24    23

Table 3.1724.1   GPS week: 1724   Day: 1   MJD: 56313.000                            

        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   22    3    7   12    3   16    4    9   14    3 |    18   25   15   13   28   16   28   17   20   21    17
   2  |   11   19    5   10   10    2   16    4    8   21    3 |    22   27   15   17   17   17   23   18   20   28    18
   3E |   18   18    9   11   15    6   17    9   24   22    5 |    69   70   68   64   71   65   72   65   76   67    67
   4  |   10    9    5    7   14    2    8    5    7   11    2 |    25   22   21   23   20   21   21   20   21   20    21
   5  |   10   13    5    8   11    3   14    5    9   28    3 |    20   27   21   21   27   21   26   21   26   22    22
   6E |   12   17    5   10   16    4   16    6   12   18    4 |    28   27   22   29   17   25   24   28   28   20    24
   7  |   11   17    5    9   21    4   18    5   14   10    4 |    17   27   17   13   36   16   25   18   29   14    18
   8  |   10   14    6    7   12    4   11    3   11   15    3 |    19   26   16   15   22   16   24   16   24   14    18
   9  |   11   15    5   13   12    5   10    5   11   24    3 |    38   52   43   39   47   42   49   41   46   50    43
  10  |   12    9    3   10   13    2    7    5   10   24    3 |    19   22   18   22   26   20   21   18   23   20    20
  11  |    9   16    4   10   22    4   10    5   12   20    3 |    15   24   16   16   39   14   26   15   24   19    18
  12  |    8   15    5    8   19    5   14    5    9   14    3 |    19   25   17   17   31   15   24   15   23   15    18
  13  |   10   20    4   12   21    4   11    4   10   12    3 |    20   32   18   14   38   16   23   18   27   20    20
  14  |    7   15    4    7   15    3   10    5    6   19    3 |    16   23   14   14   25   14   19   14   20   25    15
  15  |   10   19    5   10   17    5   13    5    7   15    3 |    21   31   19   19   31   15   23   16   24   15    20
  16  |   11   13    4   11   16    5   18    6   10   21    3 |    16   20   14   15   26   11   22   10   17   15    13
  17E |   15   15    5    8   13    3   14    7   11   13    3 |    29   29   24   25   30   23   27   26   26   24    25
  18  |    9   15    5   18   19    4   15    6   11   26    4 |    26   26   24   31   25   23   23   23   24   25    24
  19E |    7   18    5    7   16    4   15    4   10   17    3 |    37   37   33   30   29   32   33   31   35   36    32
  20  |   10   10    5   15   11    4    9    6    6   19    3 |    19   24   22   23   26   21   25   22   23   21    21
  21  |    8   15    5    8   15    4   15    4   10   25    3 |    19   26   21   20   28   20   26   21   25   30    21
  22  |    5   11    4   10   14    2   11    4    9   26    3 |    25   25   24   25   29   24   26   23   23   33    24
  23  |   10   18    5   10   15    3   13    4   10   15    3 |    17   27   18   10   31   14   23   17   26   17    18
  24  |   13   25    7    9   16    5   12    7   13   20    4 |    32   31   31   31   37   32   33   30   33   25    30
  25  |   14   16    4    8   19    5   14    6   10   13    3 |    22   22   20   16   29   18   29   17   26   18    20
  26  |    8   12    6    8   12    4   11    3    8   12    3 |    18   22   11   16   17   12   19   13   17   11    14
 X27  |    7  ---  ---  ---  ---   73  ---  ---  ---  ---    0 |    30  ---  ---  ---  ---   42  ---  ---  ---  ---    31
  28  |    9   12    5    8   16    4   11    5   11   15    3 |    21   30   19   18   31   18   26   18   28   19    21
  29E |   10   16    5    8   24    5   14    6   13   11    4 |    24   24   17   19   21   19   19   19   26   19    19
  30  |   11   11    3    8   15    6   12    5    9   24    3 |    13   20   13   13   20   10   16   10   20   21    13
  31  |   12   15    5    9   23    4   17    6   13   14    4 |    13   19   11   13   22   11   18   11   18   12    14
  32  |    8   12    2    6   14    3    7    3    7   32    2 |    17   22   18   15   26   18   21   17   20   25    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   16    5   10   16    4   13    5   11   19      |T   23   27   21   21   29   21   26   20   26   23    22
 WRMS |   10   16    5    9   15    4   13    5    9   16      |NE  20   26   19   18   28   19   24   18   24   21    20
 MEDI |   10   15    5    9   15    4   13    5   10   18      |MD  20   26   18   18   28   18   24   18   24   20    20

Table 3.1724.2   GPS week: 1724   Day: 2   MJD: 56314.000                            

        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   21    3    6   12    3   15    9    7   14    3 |    21   23   18   15   30   17   28   20   21   20    18
   2  |   11   19    5   12   13    3   15    5    9   19    4 |    20   26   16   18   16   15   20   18   16   25    16
   3E |   18   20   10   11   15    6   17    7   24   25    5 |    60   65   58   57   62   58   64   56   68   56    59
   4  |    9   11    5    8   14    3    8    3    9   13    2 |    27   19   22   21   21   19   18   20   20   20    20
   5  |   12   13    5    9   11    3   11    7    8   26    3 |    31   28   28   27   30   27   27   25   28   24    27
   6E |   12   17    6    8   15    3   16    5   17   19    4 |    26   27   23   29   21   23   24   26   24   24    22
   7  |   11   16    5   10   20    2   21    6    8   10    4 |    17   26   19   13   34   16   28   18   24   15    18
   8  |   13   11    6    7   14    4   11    4    7   12    3 |    18   22   15   14   19   12   20   14   18   14    15
   9  |   10   13    5   10   12    5   10    6    8   25    3 |    54   60   57   54   59   55   60   54   57   61    56
  10  |   14    7    4   10   11    3    7    5    9   23    3 |    21   24   23   26   29   25   25   24   19   23    23
  11  |   12   14    5    9   23    3    9    7   12   17    4 |    16   24   16   14   37   15   21   16   24   16    16
  12  |   15   15    5   11   20    6   15    6   10   15    4 |    20   23   17   17   29   16   21   15   23   14    17
  13  |   10   19    3   10   22    4   10    6   10   11    4 |    15   28   16   12   37   15   20   16   20   16    16
  14  |    8   15    6    8   15    2   12    5    9   16    3 |    12   22   12   11   23   10   17   12   16   20    11
  15  |   20   16    6   11   17    4   13    7    9   15    4 |    22   25   14   16   28   12   18   13   20   13    15
  16  |   12   16    5   11   15    5   19    6   11   20    4 |    15   23   15   14   21   14   24   13   15   16    12
  17E |   15   15    4   10   15    4   16    7   15   18    4 |    18   20   14   16   19   14   17   18   18   23    15
  18  |   15   14    6   15   17    3   14    5   11   27    4 |    21   24   27   28   25   24   22   23   27   28    23
  19E |   12   18    6    6   23    4   15    6   11   10    4 |    23   25   23   21   31   21   21   21   25   20    20
  20  |   10    9    8   10    8    4   10    6    7   21    3 |    21   27   29   24   27   25   29   28   27   27    26
  21  |   18   16    7   12   15    3   17    7    9   24    4 |    23   26   21   16   30   19   26   17   22   20    18
  22  |    9   10    4   12    9    2   11    3   11   23    3 |    23   27   28   29   30   26   25   24   24   34    25
  23  |    7   18    6    9   14    5   15    5   10   13    3 |    10   23   14    8   27   12   21   12   19   13    13
  24  |   18   24    5    9   16    6   12    5    8   16    4 |    26   27   29   29   32   29   31   28   31   25    26
  25  |   14   17    5   11   18    4   14    6    8   12    4 |    12   19   17   15   28   13   26   15   20   12    15
 X26  |    7   10    5  ---   11    4   11    5    9  ---    3 |    14   17    9  ---   12   10   16   13   13  ---    11
 X27  |    7  ---  ---  ---  ---   69  ---  ---  ---  ---    0 |    43  ---  ---  ---  ---   48  ---  ---  ---  ---    44
  28  |   10   12    5    9   17    4   12    5   14   16    3 |    16   25   14   18   27   14   20   16   23   15    16
  29E |   18   16    6   11   19    4   16    5   13   15    4 |    24   19   15   15   19   17   15   14   24   15    14
  30  |   10   10    4    8   12    4   11    4    6   24    2 |    10   17   13   11   16   10   15   10   15   20     9
  31  |   13   14    4    9   21    6   19    6   10   13    4 |    13   23   15   13   35   13   19   13   20    8    14
  32  |   10   10    3    7   10    3    9    3    7   32    2 |    12   19   16   16   21   15   21   17   15   27    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   15    5   10   16    4   14    6   11   19      |T   22   25   21   20   28   20   24   20   23   22    20
 WRMS |   12   15    5   10   14    4   13    5    9   18      |NE  20   24   20   19   27   19   23   19   22   21    19
 MEDI |   12   15    5   10   15    4   13    6    9   16      |MD  20   24   17   16   28   16   21   17   21   20    16

Table 3.1724.3   GPS week: 1724   Day: 3   MJD: 56315.000                            

        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   20    3    9   11    3   14    7    8   14    3 |    19   22   18   11   27   17   28   17   24   16    17
   2  |   10   20    5   10   10    3   15    4    8   17    3 |    21   26   14   18   16   16   23   19   17   27    16
   3E |   24   20   11   13   19    6   19    8   18   19    5 |    73   76   73   73   75   70   77   70   79   73    72
   4  |   10   10    4    6   11    2    9    4    6   14    2 |    23   20   20   23   24   22   21   22   17   20    20
   5  |    9   13    4    8   13    2   12    4    8   25    3 |    29   30   30   32   35   30   30   31   29   27    30
   6E |   13   17    8   11   14    4   17    6   12   21    4 |    30   26   25   27   24   26   26   26   26   21    24
   7  |    8   21    5    9   17    4   18    4   11   12    4 |    19   28   20   16   37   19   27   18   30   17    20
   8  |    8   10    4    8   11    3   11    3    8   11    2 |    17   20   13   15   19   13   22   14   20   13    15
   9  |    8   13    5    7   11    5   14    6    9   28    3 |    42   51   43   43   47   42   53   43   45   55    44
  10  |   11    8    3    8   10    3    6    5    8   23    2 |    26   23   25   28   29   27   27   27   23   24    25
  11  |    9   19    5    7   21    2   10    4    8   15    3 |    14   24   18   13   40   15   24   15   25   14    17
  12  |   10   15    5    9   18    5   14    6   10   15    3 |    18   22   17   18   29   14   25   15   22   13    17
  13  |   14   17    4   11   22    3   13    5    7   12    4 |    20   29   17   15   38   15   27   16   20   18    18
  14  |    8   13    5   10   15    3   10    5   11   15    3 |    14   19   14   16   24   11   19   12   18   19    12
  15  |   10   16    5    8   16    3   13    5    9   15    3 |    23   26   14   12   28   12   22   14   18   15    15
  16  |   11   17    6   15   11    3   17    5    9   21    4 |    15   18   16   16   23   12   23   11   16   15    13
  17E |   11   15    6    8   13    3   18    8   11   15    4 |    21   22   17   18   21   16   24   18   22   17    18
  18  |    9   15    4   19   18    3   16    6   10   27    4 |    29   26   30   37   33   29   28   30   30   31    29
  19E |    8   14    6    7   11    4   13    4   11   12    3 |    24   22   23   20   24   20   24   21   23   22    20
  20  |   11   11    6   11   10    4   10    4    7   20    3 |    29   32   35   29   33   30   33   31   30   31    31
  21  |    7   16    6   10   16    3   15    4   12   23    3 |    18   24   19   20   28   16   26   18   21   22    18
  22  |    7   10    4   11   11    3   10    4   10   22    3 |    32   31   32   35   36   32   33   34   29   36    32
  23  |   12   17    6    9   14    4   17    5    9   13    3 |    18   25   18   13   28   14   27   14   23   17    16
  24  |   12   23    5    7   15    6   11    6   10   16    3 |    27   27   27   29   34   28   31   29   28   26    27
  25  |   11   17    4   10   16    4   13    5    7   12    3 |    16   18   18   15   27   14   28   14   19   12    16
  26  |    9   12    6    8   11    3   10    4    9   11    3 |    17   16   10   17   14   10   18   13   13   13    11
 X27  |    6  ---  ---  ---  ---   67  ---  ---  ---  ---    0 |    53  ---  ---  ---  ---   51  ---  ---  ---  ---    52
  28  |    9   13    6    8   14    2   13    4    8   13    3 |    22   27   19   19   28   17   27   17   24   14    19
  29E |   12   18    4   10   12    5   19    7    8   15    4 |    30   23   18   22   19   19   25   20   22   19    19
  30  |   11   10    6    9   12    5   10    6   14   25    3 |    11   15   15   13   17   10   20   11   21   21    12
 X31  |    6  ---  ---  ---  ---   19  ---  ---  ---  ---    0 |    76  ---  ---  ---  ---   62  ---  ---  ---  ---    80
  32  |   10   12    4   10    9    4    9    3    8   32    2 |    18   22   23   20   27   19   25   21   23   27    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    5   10   14    4   14    5   10   19      |T   26   26   22   22   29   23   28   22   25   23    24
 WRMS |   10   15    5    9   13    4   13    5    8   18      |NE  24   24   21   20   28   22   26   20   23   21    23
 MEDI |   10   15    5    9   13    3   13    5    9   15      |MD  21   24   18   18   28   17   26   18   23   19    19

Table 3.1724.4   GPS week: 1724   Day: 4   MJD: 56316.000                            

        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   26    7   10   11    2   13    5    7   19    4 |    16   22   15   12   28   14   25   15   17   18    14
   2  |   13   20    7   11   14    3   14    7    9   19    4 |    20   28   14   16   19   14   22   20   18   27    16
   3E |   25   19   10   12   20    7   19    6   14   24    5 |    54   56   51   48   59   49   55   50   60   45    51
   4  |   11   11    5    9   12    3    9    3   10   13    3 |    22   17   19   24   22   20   19   20   20   19    19
   5  |    8   13    5    8   10    4   13    4    9   25    3 |    25   29   26   29   29   26   29   26   22   23    26
   6E |   14   19    6   13   18    4   17    7   12   23    4 |    28   23   22   27   18   22   26   25   24   22    21
   7  |   10   17    5    7   14    4   20    5    8   12    3 |    13   23   15   11   32   13   25   14   22   13    15
   8  |    9   14    6    9   12    4   11    5   10   15    3 |    20   28   20   23   23   17   28   19   20   19    20
   9  |   12   14    5   12   11    6   11    9    7   38    3 |    64   72   66   63   68   64   72   61   69   66    66
  10  |   11    9    4   12   10    2    8    3   10   25    3 |    25   21   21   29   26   23   25   24   23   23    23
  11  |    9   15    5   12   22    3    9    5   12   18    4 |    13   24   16   15   41   13   25   16   22   15    17
  12  |   14   16    6   12   18    4   13    6    7   15    4 |    17   20   16   17   28   12   22   13   20   10    15
  13  |    8   19    5   10   24    3   13    6    9   14    4 |    17   28   16   15   40   13   25   18   23   20    18
  14  |    9   14    8   10   16    3   11    6   13   16    3 |    14   20   12   17   24   11   17   15   14   24    12
  15  |   14   19    5   10   16    4   14    7   11   16    4 |    24   29   16   16   29   13   24   16   20   17    18
  16  |   12   14    7   11   12    4   15    7   10   21    3 |    14   20   14   12   23    9   21   10   18   15    12
  17E |   10   18    5   11   18    4   20    8   10   18    4 |    18   22   13   15   21   14   23   16   18   18    15
  18  |    9   13    4   10   17    4   14    6   13  ---    3 |    24   26   26   30   28   24   25   26   27  ---    25
  19E |   11   13    5    9   12    5   12    5    9   17    3 |    20   25   19   20   22   17   23   19   19   30    17
  20  |   10   12    8   10    9    3    9    7    9   24    3 |    27   29   34   28   31   28   32   29   30   31    29
  21  |   10   16    7    9   14    3   15    3   11   25    3 |    18   27   18   18   29   18   23   18   24   27    19
  22  |    6   11    8   10    7    3   11    5    9   21    3 |    29   28   31   33   32   29   27   29   24   35    29
  23  |    9   19    7    8   17    3   16    6    8   15    4 |    11   28   16   10   30   11   23   14   20   15    14
  24  |   19   24    6    8   19    6   12    6    9   19    4 |    39   32   27   31   36   29   34   31   32   24    30
  25  |   11   18    6    9   16    6   14    7    6   11    3 |    14   18   18   13   25   11   27   13   18   11    15
  26  |   11   13    5    8   12    4   13    4    7   12    3 |    16   17    6   16   15    8   19    9    9   12     9
 X27  |    7  ---  ---  ---  ---   59  ---  ---  ---  ---    0 |    63  ---  ---  ---  ---   27  ---  ---  ---  ---    65
  28  |   10   14    5   11   14    3   14    6   11   15    3 |    17   24   16   16   27   13   27   16   22   14    17
  29E |   13   20    4   10   18    5   19    6   14   18    4 |    23   25   19   20   19   19   24   18   28   25    19
  30  |   11    8    6   11   10    5   11    6    9   26    3 |     8   14   13   13   15    9   16   10   18   22    10
 X31  |   10   14  ---    9   17    7  ---    6    7  ---    4 |    10   17  ---   11   25    8  ---    7   13  ---     9
  32  |   11   14    5    6   11    2    7    7   10   35    3 |    16   21   20   18   24   16   23   19   17   29    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    6   10   15    4   14    6   10   21      |T   23   26   21   21   28   19   26   20   23   23    21
 WRMS |   11   16    6   10   13    4   13    6    9   19      |NE  22   25   20   20   28   18   26   19   22   22    21
 MEDI |   11   14    5   10   14    4   13    6    9   18      |MD  18   24   18   17   27   14   25   18   20   22    18

Table 3.1724.5   GPS week: 1724   Day: 5   MJD: 56317.000                            

        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   22    5   10   12    3   15    7    8   25    4 |    20   23   22   14   31   19   36   19   27   28    20
   2  |   10   19    5   13   13    5   14    9   10   17    4 |    21   29   16   19   15   16   22   22   18   27    17
   3E |   25   19   10   13   14    9   17    8   19   31    5 |    67   72   67   65   71   65   75   65   75   64    67
   4  |    9   12    5   12   11    4    9    5    7   14    3 |    18   17   15   22   18   14   19   17   11   15    14
   5  |    9   12    5   11   11    4   12    8    7   27    3 |    24   26   24   28   27   24   27   26   24   24    24
   6E |   15   19    5   13   14    5   19    7   16   23    4 |    28   27   22   30   18   23   24   24   24   23    21
   7  |    9   22    5    8   16    3   18    5    9   12    4 |    16   28   17   13   32   15   26   17   26   13    17
   8  |   10   15    7    8   12    4   11    7    9   14    3 |    17   25   16   15   19   13   25   15   19   16    16
   9  |   11   16    4   10   16    7   12    9   11   29    4 |    59   69   61   61   59   60   65   63   64   68    62
  10  |    7    9    4   11   10    3    8    5    9   26    2 |    22   22   20   26   22   20   25   21   19   22    21
  11  |    9   16    4   10   23    5   10    6    8   18    4 |    13   25   18   13   40   12   26   17   22   14    18
  12  |   13   16    4    9   18    5   16    7    8   15    4 |    16   25   16   18   30   14   26   21   25   15    19
  13  |    8   19    5   12   23    4   12    6    7   14    4 |    18   31   19   15   39   14   28   17   21   18    19
  14  |   12   16    5    9   14    3    9    7   12   17    3 |    15   22   13   15   25   12   19   16   18   22    14
  15  |   26   15    5   12   17    4   12    8    9   19    4 |    23   28   15   21   32   16   23   20   22   22    19
  16  |    8   15    5   12   12    5   14    6    8   23    3 |    13   21   15   17   24   11   23   17   15   15    15
  17E |   11   15    6   12   15    4   16   11    9   18    4 |    18   26   16   21   27   16   26   22   19   22    19
  18  |   11   14    5   15   18    4   14    5    9   26    4 |    20   21   25   28   25   22   23   25   27   22    24
  19E |   12   12    7   10   17    4   12    8   16   16    4 |    22   22   21   21   25   18   24   20   24   28    19
  20  |    7   11    8   11    9    5   10    5    7   22    3 |    22   28   29   23   28   21   30   25   26   19    25
  21  |    9   17    5    9   11    4   13    7   10   25    3 |    15   28   17   18   32   17   27   19   24   23    19
  22  |    7   12    6   12   11    3    9    5   15   23    3 |    21   22   25   27   29   22   24   24   25   27    23
  23  |   10   18    5   10   17    5   16    7    5   15    4 |    18   28   19   16   29   14   25   17   19   17    17
  24  |   19   26    7   10   14    4   11    7   14   21    4 |    27   26   21   25   34   23   29   26   35   26    24
  25  |   11   19    5    9   15    4   13    8    9   11    4 |    13   21   19   20   27   16   28   25   22   15    20
  26  |   12   13    6    9   11    4    8    7    8   14    3 |    19   21   16   23   17   16   21   22   16   21    17
 X27  |    9  ---  ---  ---  ---   81  ---  ---  ---  ---    0 |    46  ---  ---  ---  ---   57  ---  ---  ---  ---    46
  28  |   11   14    6    8   15    3   11    6    8   17    3 |    20   30   17   17   30   16   26   20   22   15    19
  29E |   11   15    6    9   11    6   18    7   12   13    4 |    21   23   18   20   21   18   25   20   24   20    19
  30  |   11   11    5   11   11    5    8    6    8   26    3 |    10   14   12   14   16   11   16   15   17   20    12
  31  |   10   16    5    9   16    6   18    7    9  ---    4 |    11   18    7   11   18    7   19   12   11  ---     9
  32  |    9   12    5    8   11    5    6    5    5   37    2 |    14   21   19   18   23   13   22   17   18   26    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    6   11   14    5   13    7   10   21      |T   22   27   21   22   28   20   27   22   24   23    22
 WRMS |   12   16    5   11   14    5   12    7    8   18      |NE  20   25   19   20   27   19   26   21   22   22    21
 MEDI |   10   15    5   10   14    4   12    7    9   18      |MD  19   25   18   20   27   16   25   20   22   22    19

Table 3.1724.6   GPS week: 1724   Day: 6   MJD: 56318.000                            

        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   21    6   13   13    4   15    8    7   26    4 |    23   26   19   21   33   18   32   18   19   24    19
   2  |   14   20    7   10   14    4   14    7    8   18    4 |    23   32   16   22   22   17   24   20   17   30    18
   3E |   21   17    9   12   15    8   15    7   16   53    5 |    88   88   85   84   92   82   91   82   89   88    86
   4  |    9   10    4    8   10    2    8    5    9   14    3 |    25   20   20   24   24   20   24   21   20   20    20
   5  |   15   13    5   12    7    4   12    7    7   31    3 |    37   36   36   42   40   36   38   37   35   35    36
   6E |   15   17    6   13   17    5   18    8   15   22    4 |    34   31   28   32   25   30   30   32   31   32    28
   7  |   11   23    6   12   14    4   20    6   12   15    4 |    15   27   19   17   34   17   29   19   30   14    20
   8  |   10   13    4   13   11    3   11    5   10   16    3 |    24   34   19   27   26   19   33   21   24   23    24
   9  |   10   14    4   10   14    6   11    7    8   27    3 |    58   62   59   52   63   53   60   55   58   60    57
  10  |   11    8    5    9    7    3    8    4    8   29    2 |    30   25   29   33   31   29   31   29   29   30    29
  11  |   12   16    6   11   23    5    9    5   12   23    4 |    15   26   19   13   44   15   27   19   24   18    20
  12  |   17   17    5   12   13    5   13    5    8   16    4 |    20   23   16   15   27   14   24   16   22   13    17
  13  |   10   19    8   11   23    5   11    6   10   15    4 |    19   34   22   16   43   17   29   19   26   21    22
  14  |   10   15    4   12   15    3   11    6    7   21    3 |    14   23   13   17   27   10   18   14   17   25    13
  15  |   16   18    6   11   16    5   13    5    9   25    4 |    20   34   18   20   31   15   27   20   24   24    21
  16  |   12   14    6   13   12    3   13    6   13   23    4 |    16   21   14   17   23   13   21   13   19   18    14
  17E |   14   15    6   11   13    5   17   10   13   17    4 |    22   28   23   23   30   20   30   23   25   24    23
  18  |    9   12    7   17   16    4   13    5    8   28    4 |    31   31   35   40   36   32   31   34   31   33    33
  19E |   11   13    5   12   11    4   12    6   12   21    3 |    30   30   26   26   31   25   29   27   31   35    26
  20  |    9   12    8   16    8    4   12    5   10   27    3 |    38   38   44   36   44   38   42   39   39   36    39
  21  |   10   17    7   13   16    4   15    5   11   27    4 |    16   26   18   21   35   16   26   17   23   23    18
  22  |    6   12    5   12    9    4   10    5    8   28    3 |    38   35   41   43   42   39   38   39   37   45    39
  23  |   10   17    7    9   16    5   14    5    8   18    3 |    15   30   18   14   31   13   26   15   24   17    18
  24  |   16   24    6   10   15    5   12    6    7   28    4 |    34   32   31   32   39   32   36   33   36   40    32
  25  |    8   16    5   11   13    5   13    7    9   14    3 |    16   21   16   13   24   13   29   15   19   12    16
  26  |   10   13    6    9   11    4   11    5    8   16    3 |    16   19   11   19   14   10   18   11   12   20    11
 X27  |    9  ---  ---  ---  ---   53  ---  ---  ---  ---    0 |    37  ---  ---  ---  ---   27  ---  ---  ---  ---    38
  28  |   11   11    5   11   12    3   11    5    7   18    3 |    24   33   24   22   30   19   33   22   25   19    24
  29E |   13   16    5   11   12    5   20    9   11   14    4 |    24   24   16   19   19   16   23   19   24   20    18
  30  |   12   11    5   11   12    4   12    5    7   24    3 |     8   15   14   13   18   10   16   12   20   21    12
  31  |   12   14    6   11   15    3   17    6    8   17    4 |    10   19    7   11   28    9   19    8   13    7    11
  32  |   10   13    5   10    8    4    8    5   10   40    3 |    21   22   25   25   31   23   27   24   23   36    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    6   12   14    4   13    6   10   24      |T   26   30   25   26   33   23   31   24   27   27    25
 WRMS |   12   16    6   12   13    4   12    6    8   19      |NE  23   28   23   24   32   21   29   22   25   25    23
 MEDI |   11   15    6   11   13    4   12    6    9   22      |MD  23   28   19   22   31   18   29   20   24   24    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 4.1724   GPS week: 1724   MJD: 56312.0-56318.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3022 |U    4     5    13 |U   12    14    37 |U    6     7    12 |
emr | emr 2954 |     8     6    20 |    15    14    52 |    10     8    16 |
esa | esa 2947 |     7     4    12 |U   15    17    44 |     8     8    15 |
gfz | gfz 2937 |U    9     6    19 |U   15    17    43 |U    7     7    14 |
grg | grg 2956 |U    9     8    19 |U   16    14    36 |     8     7    20 |
igr | igr 2961 |     6     5    15 |    10    13    38 |     6     6    13 |
igs | igs 2958 |     7     5    16 |    13    14    44 |     7     6    12 |
jpl | jpl 2939 |     9     8    22 |U   14    15    51 |U    9     8    17 |
mit | mit 2962 |     8     7    16 |U   12    14    38 |U   10    12    28 |



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 5.1724.0   GPS week: 1724   Day: 0   MJD: 56312.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3042 |     4     4    14 |  ----  ----  ---- |     7     8    13 |
emr | emr 2968 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
esa | esa 2976 |    16     5    15 |  ----  ----  ---- |     7     7    13 |
gfz | gfz 2967 |    15     6    18 |  ----  ----  ---- |     6     4    11 |
grg | grg 2973 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2975 |    16     5    14 |  ----  ----  ---- |     7     7    12 |
igs | igs 2975 |    17     5    15 |  ----  ----  ---- |     6     5    10 |
jpl | jpl 2967 |    17     6    17 |  ----  ----  ---- |     7     5    15 |
mit | mit 2976 |    17     8    13 |  ----  ----  ---- |     7     5    14 |

Table 5.1724.1   GPS week: 1724   Day: 1   MJD: 56313.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3041 |     5     7    16 |  ----  ----  ---- |     5     3    10 |
emr | emr 2968 |    11     7    22 |  ----  ----  ---- |     7     5    17 |
esa | esa 2976 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
gfz | gfz 2968 |    12     7    26 |  ----  ----  ---- |     6     4    14 |
grg | grg 2976 |     9     8    21 |  ----  ----  ---- |     9    10    24 |
igr | igr 2975 |     5     6    14 |  ----  ----  ---- |     6     5    12 |
igs | igs 2973 |     5     4    14 |  ----  ----  ---- |     6     4    14 |
jpl | jpl 2967 |     9    10    21 |  ----  ----  ---- |    11     9    23 |
mit | mit 2976 |     7     7    13 |  ----  ----  ---- |     8     9    18 |

Table 5.1724.2   GPS week: 1724   Day: 2   MJD: 56314.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3034 |     3     3     9 |  ----  ----  ---- |     6     6    16 |
emr | emr 2968 |     6     4    16 |  ----  ----  ---- |     9     7    14 |
esa | esa 2976 |     4     4    12 |  ----  ----  ---- |     7     6    15 |
gfz | gfz 2872 |     8     8    20 |  ----  ----  ---- |     7     5    12 |
grg | grg 2975 |     9     8    20 |  ----  ----  ---- |     9     6    20 |
igr | igr 2972 |     5     7    15 |  ----  ----  ---- |     7     6    14 |
igs | igs 2971 |     6     5    14 |  ----  ----  ---- |     7     5    12 |
jpl | jpl 2968 |     9     8    29 |  ----  ----  ---- |     9     5    14 |
mit | mit 2976 |     8     9    18 |  ----  ----  ---- |    23    33    91 |

Table 5.1724.3   GPS week: 1724   Day: 3   MJD: 56315.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2926 |     4     4    13 |    16    17    40 |     8    15    16 |
emr | emr 2872 |     8     6    23 |    17    16    48 |    15    17    28 |
esa | esa 2880 |     4     4    11 |    15    16    45 |    11    16    21 |
gfz | gfz 2870 |     7     7    20 |    16    17    43 |    10    17    20 |
grg | grg 2876 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2879 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igs | igs 2876 |     6     7    18 |    18    16    65 |    11    16    21 |
jpl | jpl 2872 |    10    14    24 |    17    16    41 |    13    19    23 |
mit | mit 2880 |     8     9    24 |    16    16    43 |    13    16    32 |

Table 5.1724.4   GPS week: 1724   Day: 4   MJD: 56316.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3040 |     4     8    16 |     8    10    27 |     7     5    10 |
emr | emr 2968 |     6     5    20 |    15    11    78 |     9     4    10 |
esa | esa 2880 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
gfz | gfz 2966 |     5     8    19 |  ----  ----  ---- |  ----  ----  ---- |
grg | grg 2970 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2976 |     3     4    17 |     8    10    29 |  ----  ----  ---- |
igs | igs 2973 |     4     4    17 |     9    10    30 |     7     4     9 |
jpl | jpl 2871 |     9     7    25 |    18    13    82 |     7     5    13 |
mit | mit 2976 |     5     7    15 |    10    13    31 |     8     7    16 |

Table 5.1724.5   GPS week: 1724   Day: 5   MJD: 56317.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     2     3     7 |    15    18    44 |     6     4    12 |
emr | emr 2968 |     6     4    17 |    16    16    46 |     9     5    16 |
esa | esa 2976 |     3     3    13 |    14    17    42 |     6     5    13 |
gfz | gfz 2951 |     3     3    10 |    14    17    42 |     6     4    13 |
grg | grg 2954 |     7     7    15 |    16    14    36 |     7     7    16 |
igr | igr 2976 |     3     2    11 |    14    16    46 |     6     5    14 |
igs | igs 2969 |     4     4    16 |    15    17    43 |     7     4    12 |
jpl | jpl 2963 |     5     6    18 |    14    18    45 |     8     7    17 |
mit | mit 2976 |     3     4    10 |    14    15    43 |     7     6    15 |

Table 5.1724.6   GPS week: 1724   Day: 6   MJD: 56318.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3049 |     5     7    19 |     9    13    39 |     7     5    10 |
emr | emr 2968 |     9     8    20 |    11    14    35 |    10     7    12 |
esa | esa 2971 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
gfz | gfz 2967 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
grg | grg 2969 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2976 |     5     7    21 |     9    13    40 |     7     6    12 |
igs | igs 2974 |     6     6    19 |     9    13    39 |     7     5    10 |
jpl | jpl 2968 |     7     7    20 |     9    13    34 |     8     6    15 |
mit | mit 2976 |     6     5    19 |     9    14    33 |     8     7    14 |


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 6.1724   GPS week: 1724   MJD: 56312.500-56318.500

                                                         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 |     -24     -14      14    -107     -7 |       4     15
            |      16      34      55     123      6 |       3
emr   uuuuu |      44     -22     299     179      7 |      -8     21
            |      27      27      99     142     12 |       1
esa   uuuuu |     -11     -21      59     -73      3 |       4     16
            |      12      32      40     107      2 |       2
gfz   uuuuu |      32      31     -71     -46     -5 |       6     15
            |       7      13      38      33      3 |       2
grg   uuuux |      -9      -3      -1    -148    191 |       2     15
            |      18      16      68      52    460 |       3
igr   xxxxx |     -59       8      -4     -47      1 |       0     16
            |      13      16      27      36      4 |       2
irf   xxxxx |      -4     -10     -25     -10      5 |       2     13
            |       8      15      23      25     12 |       2
jpl   uuuuu |      40      11      19     107     19 |      -8     25
            |      29      28     110      74      8 |       4
mit   uuuux |       7     -19     -99      82     13 |       5     23
            |      27      12      40      70     26 |       5
ngs   uuuuu |     -61      67     -78       5      1 |      -2     11
            |      35      36      65      83      5 |       2
sio   xxxxx |     190     -91     -34       7     -1 |       5     14
            |      49      30      82     119      5 |       2


Table 7.1724.0   GPS week: 1724   Day: 0   MJD: 56312.500

                                                         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 |     -23     -72      48     -85     -7 |       5     17
emr   uuuuu |      49     -15     178     194      2 |      -9     23
esa   uuuuu |       2      30      46     -48      4 |       1     18
gfz   uuuuu |      29      22     -31      12     -8 |       6     18
grg   uuuux |     -14      -4      70     -90      4 |       2     13
igr   xxxxx |     -56     -19     -12     -44     -2 |       0     19
irf   xxxxx |     -15     -24       9       7     25 |      -2     12
jpl   uuuuu |      67      -3    -140     133     22 |     -14     30
mit   uuuux |     -52     -30     -79      39     62 |      -3     14
ngs   uuuuu |     -23      12     -86     -40      1 |      -2     14
sio   xxxxx |     235     -62      94     141      5 |       4     16

Table 7.1724.1   GPS week: 1724   Day: 1   MJD: 56313.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -11      11     -47     -32     -3 |       5     17
emr   uuuuu |      24     -17     285      85     -9 |      -8     23
esa   uuuuu |     -17     -42      78     -60      6 |       2     18
gfz   uuuuu |      36      41     -36     -32     -2 |       6     18
grg   uuuux |     -27       4      66    -111     -1 |       1     12
igr   xxxxx |     -66       4      19     -53      2 |       0     19
irf   xxxxx |      -6       4      -9     -18      3 |       1     15
jpl   uuuuu |      37      35     -71     -23     14 |     -11     29
mit   uuuux |       9     -18     -58      52      3 |       2     24
ngs   uuuuu |     -36      73    -129     115      0 |      -2     14
sio   xxxxx |     249     -59      20      41      2 |       5     16

Table 7.1724.2   GPS week: 1724   Day: 2   MJD: 56314.500

                                                         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 |     -33      -7     -12     -74     -7 |       7     17
emr   uuuuu |      12     -19     330       1      5 |      -8     23
esa   uuuuu |      -5     -52      98     -28      1 |       5     18
gfz   uuuuu |      19      48     -72     -55     -6 |       8     18
grg   uuuux |     -28      20    -103    -163      1 |       1     12
igr   xxxxx |     -64      31      14     -34      0 |       2     18
irf   xxxxx |     -11       5     -18       6      9 |       2     14
jpl   uuuuu |      14     -11       0     129      5 |      -6     25
mit   uuuux |      17       4     -80      75     18 |       3     24
ngs   uuuuu |     -29      72    -113       3      4 |       0     13
sio   xxxxx |     207    -112     -67    -134      2 |       7     16

Table 7.1724.3   GPS week: 1724   Day: 3   MJD: 56315.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -1     -31      33    -140     -6 |       8     17
emr   uuuuu |      34     -19     198      82     18 |      -7     23
esa   uuuuu |       2     -13     114      25      5 |       6     17
gfz   uuuuu |      37      15    -101     -31     -2 |       8     18
grg   uuuux |     -16      10     -23    -205      7 |       0     12
igr   xxxxx |     -48      17      -4     -34     -2 |       3     18
irf   xxxxx |       0     -11     -29     -45     -1 |       4     14
jpl   uuuuu |      -3      -3     -31     117     14 |      -6     25
mit   uuuux |       7     -25    -131      31      1 |       5     25
ngs   uuuuu |     -60      99      28      16     -7 |       1     12
sio   xxxxx |     175    -143     -52     -79     -9 |       8     16

Table 7.1724.4   GPS week: 1724   Day: 4   MJD: 56316.500

                                                         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 |     -16     -38     111      18      0 |       3      9
emr   uuuuu |      31     -81     427     173     19 |     -11     18
esa   uuuuu |     -25      13      52     -36      2 |       3     12
gfz   uuuuu |      27      31    -124     -81     -6 |       3      9
grg   uuuux |      -1     -23     -42    -210     50 |       0     12
igr   xxxxx |     -37      11     -59    -110     -5 |      -1     13
irf   xxxxx |      10     -29     -53     -39     -7 |       2     13
jpl   uuuuu |      37     -25     130      37     26 |     -10     22
mit   uuuux |      31     -20    -122      59    -10 |       6     25
ngs   uuuuu |     -68      88    -130       0     -4 |      -3      9
sio   xxxxx |     150     -77    -172     -82     -5 |       3     11

Table 7.1724.5   GPS week: 1724   Day: 5   MJD: 56317.500

                                                         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 |     -44      12       6     -72    -19 |       3     10
emr   uuuuu |      73     -16     252     301     19 |      -9     19
esa   uuuuu |      -5     -43       4     -59      1 |       5     13
gfz   uuuuu |      36      17     -96     -85      0 |       5     10
grg   uuuux |       6     -21      28    -108     45 |       5     23
igr   xxxxx |     -63       0       3      11      4 |      -1     13
irf   xxxxx |      -6     -19     -17       1     13 |       4     13
jpl   uuuuu |      47      49     162     188     24 |      -6     24
mit   uuuux |      15     -34     -59      85     27 |       9     24
ngs   uuuuu |     -92     102    -118    -141      6 |      -4      8
sio   xxxxx |     204    -101     -47     -15      0 |       5     12

Table 7.1724.6   GPS week: 1724   Day: 6   MJD: 56318.500

                                                         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 |     -40      25     -41    -364     -7 |       0     15
emr   uuuuu |      88       9     421     414     -5 |      -7     17
esa   uuuuu |     -26     -38      25    -308     -1 |       5     14
gfz   uuuuu |      41      41     -36     -51    -10 |       3     11
grg   uu--x |      20      -8      --      --   1233 |       8     24
igr   xxxxx |     -77      10      13     -64      6 |      -1     13
irf   xxxxx |       3       5     -54      21     -9 |       6     11
jpl   uuuuu |      82      36      83     167     24 |      -2     19
mit   uuuux |      23     -14    -163     234    -11 |      13     24
ngs   uuuuu |    -117      23       0      83      6 |      -4      9
sio   xxxxx |     110     -83     -14     180     -3 |       5     12



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