[IGSREPORT-21527] Wk 1722 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Jan 25 10:02:02 PST 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1722   (Jan 06, 2013 - Jan 12, 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:

igs1722[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1722[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1722[0-6].cls  IGS GPS clock combination summary report.
igs17227.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17227.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   | 3 6 26 3 6 26
                0  |  ESA   | 3 6 26 3 6 26
                0  |  GFZ   | LHAZ
                0  |  JPL   | 6
                1  |  COD   | 3 6 26 6 26 KOUC FLRS KOUC XMIS
                1  |  ESA   | 3 6 26 6 26 MATE MATE
                1  |  GFZ   | 3 6 26 BOGT SFER UNSA
                1  |  GRG   | YELL WIND YELL
                1  |  JPL   | 6
                1  |  MIT   | 3 6 30 3 6 30
                2  |  COD   | 3 6 26 3 6 26 XMIS FLRS HOB2 REUN XMIS
                2  |  ESA   | 3 6 26 3 6 26 UNSA
                2  |  GFZ   | 3 6 26 ALGO BOGT DUBO HOB2
                2  |  GRG   | ONSA MCM4 ONSA
                2  |  JPL   | 26 ISPA NYAL
                2  |  MIT   | REUN
                3  |  COD   | 6 26 3 6 26 KOUC AREQ KOUC REUN SOFI
                3  |  EMR   | AREQ
                3  |  ESA   | 3 6 26 3 6 26 AREQ
                3  |  GFZ   | 3 6 26 ALRT BOGT POLV
                3  |  GRG   | NICO USNO BOGT CEDU KARR KIT3 LHAZ MCM4 NICO SOFI
                3  |  GRG   | USNO
                3  |  JPL   | AREQ
                3  |  MIT   | 3 3 ALRT WROC ALRT NICO WROC
                4  |  COD   | 6 6 AREQ
                4  |  EMR   | 3 3 AREQ
                4  |  ESA   | 6 6 AREQ UNSA
                4  |  GFZ   | 3 6 26 ASPA BOGT HOLM NKLG POLV TIDB WES2
                4  |  GRG   | 3 3 NKLG NKLG
                4  |  JPL   | 3 AREQ
                4  |  MIT   | 3 3 SYDN
                5  |  COD   | KOUC KOUC
                5  |  ESA   | UNSA
                5  |  GFZ   | 3 6 BOGT POLV SYOG TIDB
                5  |  GRG   | 3 6 3 6 AREQ MDVJ SOFI ADIS AREQ MDVJ SOFI WTZR
                5  |  JPL   | 6 NYAL
                5  |  MIT   | 3 6 15 3 6 15 SYDN MANA SYDN
                6  |  COD   | 2 3 10 2 3 10 KOUC XMIS KOUC XMIS
                6  |  EMR   | 4 6 4 6 HERS
                6  |  ESA   | 4 4 UNSA
                6  |  GFZ   | 6 BOGT GUAM IRKT SSIA
                6  |  GRG   | 3 6 3 6 DARW SOFI USNO DARW HOB2 SOFI USNO
                6  |  JPL   | 3 6 GMAS
                6  |  MIT   | 3 6 9 3 6 9 DARW DARW

 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
               ----+------------+----------
               G05 | 2013_01_10 | 2013003 

 7. 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 G26 |    |    |    |    |  1 |  1 |    |

 8. 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.

 9. 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     .2    -.8     -44      0     -4     .05
       EMR  |   0 |    -.2   11.3    7.4       2     11     -1     .11
       ESA  |   0 |   -2.7    7.1     .6     117    -60     51     .15
       GFZ  |   0 |     .1     .0    -.3     -50    -32    -21     .01
       GRG  |   0 |    6.0   -1.6    6.2      -1     33    -14     .14
       JPL  |   0 |    4.7   -1.9   11.5     -70     -7    -51     .02
       MIT  |   0 |    1.9    7.5    5.3     -11      7    -41     .05
       NGS  |   0 |   -1.0   -3.5   -7.6      35     -6      1     .74
       SIO  |   0 |    5.2    5.3  -48.9     242   -329     73     .40

       COD  |   1 |   -1.2    -.1   -1.3     -49     18     -6     .05
       EMR  |   1 |    2.9    9.7   12.1       2      9     -8     .05
       ESA  |   1 |   -1.0    7.9   -2.9     126   -147     80     .19
       GFZ  |   1 |     .0    -.6    -.6     -52    -21    -17     .06
       GRG  |   1 |    6.7    5.4    -.6     -14     32    -11     .44
       JPL  |   1 |   -1.1    9.4    8.5     -78     -8    -77    -.23
       MIT  |   1 |    4.3    4.8    6.9     -11      8    -31     .13
       NGS  |   1 |   -2.3     .2   -7.6      48      2    -17     .66
       SIO  |   1 |    8.0    6.2  -51.6     245   -291    110     .23

       COD  |   2 |   -1.0     .6   -1.6     -54     15    -13    -.06
       EMR  |   2 |    3.6   13.4    2.8      14      1      4     .06
       ESA  |   2 |    1.1    6.9   -3.3     110   -165     88     .14
       GFZ  |   2 |     .5     .3    -.4     -50    -25    -25    -.02
       GRG  |   2 |   12.8    2.3   11.7     -32     27    -43     .54
       JPL  |   2 |     .8   11.5   13.1    -113     58    -10    -.15
       MIT  |   2 |    8.1    6.2    6.4      -5     -7    -38     .30
       NGS  |   2 |    3.4   -1.8  -15.8      76    -28     34     .56
       SIO  |   2 |   13.7    9.3  -47.7     125   -373     21     .35

       COD  |   3 |   -1.0     .3   -1.5     -48     20    -10    -.14
       EMR  |   3 |    2.8    6.3    8.4       7      9      9     .09
       ESA  |   3 |    3.6    2.8   -4.0      51   -210    114     .14
       GFZ  |   3 |     .5     .5    -.6     -63    -28    -26     .04
       GRG  |   3 |    4.5    1.9    5.6     -45     29    -26     .37
       JPL  |   3 |    3.6   -1.4   14.6     -43    -10    -20     .12
       MIT  |   3 |    4.3    5.4    5.9      -8      1    -34     .12
       NGS  |   3 |    4.2   -4.2   -9.4      50    -32     47     .48
       SIO  |   3 |    6.5    1.4  -43.4     138   -277    -32     .21

       COD  |   4 |    -.6     .9    -.8     -46     10      3    -.08
       EMR  |   4 |    -.8    5.2    3.9       5      2     -3     .25
       ESA  |   4 |    2.1    5.6   -6.2      89   -175     84     .04
       GFZ  |   4 |     .4     .3    -.8     -61    -29    -33     .0 
       GRG  |   4 |    9.3    3.2    5.2     -49     71    -51     .17
       JPL  |   4 |   -2.6   -1.8   10.3     -72     33    -46     .14
       MIT  |   4 |    4.8    5.0    4.1      -8      3    -34     .21
       NGS  |   4 |    -.9   -6.4   -5.3       5     -1     -3     .70
       SIO  |   4 |    4.5    3.7  -29.7     189   -200     23     .33

       COD  |   5 |    -.8     .1   -1.3     -52      5     -7    -.18
       EMR  |   5 |    -.3    4.5   13.6       4     23      1     .02
       ESA  |   5 |    1.1     .0   -3.1       7   -146    102     .08
       GFZ  |   5 |     .3    -.3   -1.0     -62    -40    -25     .10
       GRG  |   5 |     .6   -7.0    -.6     -55     58    -34     .46
       JPL  |   5 |    3.5   -1.2   18.4     -73     50    -11     .03
       MIT  |   5 |    2.3    3.9    2.9     -14      1    -34     .19
       NGS  |   5 |   -4.6   -9.9   -1.0     -39     21    -39     .83
       SIO  |   5 |     .9    4.0  -45.1     170   -225   -134     .51

       COD  |   6 |    -.6    -.1    -.7     -48     -5     -8    -.29
       EMR  |   6 |    5.3   10.2   16.3      -3     12      8    -.19
       ESA  |   6 |    3.4    2.1   -3.9      57   -192    110     .04
       GFZ  |   6 |    -.1     .0    -.8     -57    -39    -17    -.11
       GRG  |   6 |    2.5   -8.9   -1.1     -38     37     -7     .21
       JPL  |   6 |    1.8    1.4   22.6     -33     10    -25    -.10
       MIT  |   6 |    4.2    4.1    6.9     -10      7    -23     .08
       NGS  |   6 |    4.1   -5.2    6.7     -49    -23     39     .41
       SIO  |   6 |    5.6    2.3  -38.6     122   -271     94     .30


10. 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.

11. 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 1.1722.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1722.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 2.1722.[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 3.1722.[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 5.1722.0-6). 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 1722 summary.                       (Jan 06, 2013 - Jan 12, 2013)

Table 1.1722.a   GPS week: 1722   MJD: 56298.000-56304.000

         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  263|    0     0     5   -17     9     5  -.45   11   11 |   -1349     558     19     87
        |    0     0     1    20    24    24   .05           |     886    1232
emr   80|    0     0     6   -49    26    -5   .16   15   15 |    3096    -213     15     94
        |    0     2     1    22    14    13   .02           |     627     567
esa  174|    0     0     0    75   -63     4   .05    6    5 |     -20      26     12    110
        |    0     0     0    21    22    18   .01           |    1028    1207
gfz  190|   -1    -1    -5   -69   -45    14  -.37   11   10 | -142743   -9298     21    121
        |    0     1     1    27    22    11   .01           |  378014   23996
grg  139|    1     0    -2   -12    42    -2   .62   15   14 |    -272     248     20    140
        |    0     1     4    11    14    13   .04           |     323     477
igr  n/a|    0     0    -1   -19    91   -26  -.17    4    4 |    8442    -690     17     88
        |    0     0     1    28    17    10   .02           |    1210     512
jpl   80|   -1    -1     3    -6    40   -15   .27   14   13 |    3640    -333     16    108
        |    1     1     0    32    16    15   .03           |     509     444
mit  240|    0     0    -1   -10    20     5  -.18    6    6 |    -408     506     24    175
        |    0     0     1     9    18    10   .02           |     274     398
ngs  245|    0     0    -1   -26    61   -23   .36   10    9 |   -1183     297   1859   3655
        |    0     0     2    29    39    17   .03           |     790    1079
sio  256|   -1    -2     4   158  -191    30  -.44   21   18 |     ---     ---    ---    ---
        |    1     0     1    48    58    88   .04           |     ---     ---


Table 1.1722.b   GPS week : 1722   MJD: 56298.000-56304.000   

         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    3    3    4    3    4    4 |
   2  |    4    4    4    4    4    4    4 |
   3  |    5    4    4    6    5    6    7 |
   4  |    3    3    3    3    3    4    3 |
   5  |    4    4    4    4    0    4    4 |
   6  |    4    4    4    5    5    7    6 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    3    3    3    3    3    3 |
   9  |    3    3    3    3    3    4    3 |
  10  |    4    3    3    3    3    4    3 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    4    5    5    5    5    4 |
  13  |    3    3    3    3    3    4    4 |
  14  |    3    4    3    3    4    3    3 |
  15  |    5    5    4    5    5    4    5 |
  16  |    4    4    4    4    4    4    4 |
  17  |    4    4    4    5    4    4    4 |
  18  |    4    4    4    4    4    4    4 |
  19  |    4    4    4    5    4    4    4 |
  20  |    3    3    3    3    3    3    4 |
  21  |    3    4    3    3    3    4    4 |
  22  |    3    3    3    3    3    3    3 |
  23  |    4    4    4    4    4    4    4 |
  24  |    4    4    4    5    4    4    4 |
  25  |    4    4    4    4    4    4    4 |
  26  |    4    4    5    5    6    5    4 |
  27  |    0    0    0    0    0    0    0 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    5    4    5    5    5    5 |
  30  |    3    3    3    3    3    4    4 |
  31  |    4    4    4    4    4    4    4 |
  32  |    3    2    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 2.1722.0   GPS week: 1722   Day: 0   MJD: 56298.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  259|    0     0     6   -20    -1    17  -.40   11   11 |   -1236       7     19     86
emr   80|    0    -1     5   -71    20     4   .17   15   15 |    3477      52     13    110
esa  174|    1     0     0    96   -16     8   .06    6    5 |     471    -608     11    112
gfz  185|    0    -1    -6   -69   -65    13  -.36    9    9 | -999999  -63704     26    108
grg  139|    2     0     0     4    22     8   .60   16   14 |    -366     328     18    111
igr  n/a|    0     0     0   -51    63   -14  -.18    4    4 |    9977    -361     17     89
jpl   80|   -2     0     1   -33    21   -10   .29   14   13 |    4337    -259     15    112
mit  240|    0     0     0   -12    -4     7  -.20    7    7 |    -437     361     25    194
ngs  241|    0     0    -3   -25    73   -32   .30   10    8 |   -1153    -162   2213   3900
sio  280|   -2    -3     4   229  -245    68  -.41   21   17 |     ---     ---    ---    ---

Table 2.1722.1   GPS week: 1722   Day: 1   MJD: 56299.000                            

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  260|   -1     0     5     0    -5     3  -.37   11   11 |   -2034    1878     20     87
emr   80|    0     0     6   -46    20   -10   .16   15   15 |    3169    -160     14     85
esa  174|    0     1    -1    72   -63   -17   .05    6    6 |    -535    1343     13    110
gfz  187|   -1     0    -3   -46   -35    16  -.34    9    8 |     182     -61     21    135
grg  138|    2     1    -7   -12    27    -7   .57   15   14 |    -199     409     21    176
igr  n/a|    0     0     1   -47    75   -33  -.18    4    4 |    9354    -743     17     90
jpl   80|   -1    -3     2   -34    34    -4   .29   13   13 |    3749    -369     17    114
mit  240|    1     0     0   -25    31     9  -.19    6    6 |    -480     577     28    191
ngs  243|    0     0    -2     3    63     0   .35   10    8 |   -1802    1494   1948   3821
sio  247|   -3    -1     5   211  -194   119  -.42   20   18 |     ---     ---    ---    ---

Table 2.1722.2   GPS week: 1722   Day: 2   MJD: 56300.000                            

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     7   -44     0    37  -.42   10   10 |   -1615     958     21     84
emr   80|    1    -1     4   -84    18     0   .15   15   15 |    3349     311     16     94
esa  174|    2     1     0    97   -65   -21   .06    5    5 |    1212    -768     15     97
gfz  190|   -1    -1    -8   -34    -4    27  -.37    9    9 |      90     441     19    113
grg  141|    1     0     3   -25    54   -25   .68   14   13 |    -381     468     26    130
igr  n/a|    0     0     0   -34    97   -17  -.17    5    5 |    8891    -318     16     78
jpl   80|   -2    -3     2   -50    61     7   .27   14   13 |    3700     -28     18     90
mit  240|    0     0     0    -6    32    14  -.20    6    6 |    -455     611     22    166
ngs  243|    0     0    -4   -29     3   -43   .36   10    9 |   -1412     685   1639   3528
sio  210|   -3    -1     4   106  -278    45  -.40   20   18 |     ---     ---    ---    ---

Table 2.1722.3   GPS week: 1722   Day: 3   MJD: 56301.000                            

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     0     5    12    10    21  -.48   11   11 |   -1697     958     22     80
emr   80|    0     0     6   -27    32   -23   .12   16   16 |    3613    -282     13     72
esa  174|    0     0     0    56   -75     7   .05    5    5 |     369   -1248     13    109
gfz  193|   -1    -3    -5   -96   -44     6  -.38   11   10 |     330    -411     22    126
grg  139|    0     1     1    -5    44    -8   .64   14   11 |    -124    -161     17    139
igr  n/a|    0     0    -2     0    97   -40  -.18    5    4 |    8535    -504     17     90
jpl   80|    0     0     4    33    39   -18   .26   14   13 |    3566     -43     17     99
mit  240|    0     0    -2     0    49     6  -.20    6    6 |    -249     381     20    180
ngs  246|    0     1    -5   -80    23   -26   .36   11    9 |   -1497     561   2119   3940
sio  263|   -2    -1     3   122  -186   -35  -.43   19   19 |     ---     ---    ---    ---

Table 2.1722.4   GPS week: 1722   Day: 4   MJD: 56302.000                            

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     5   -38    42    12  -.47   10   10 |     589   -1949     21     93
emr   80|    0    -2     4   -36    18    15   .15   15   15 |    3607   -1401     18     95
esa  174|    0     0     0    98   -89     4   .06    6    6 |   -2033    2044     13    116
gfz  192|   -2    -2    -4  -101   -60    14  -.36   13   11 |     557    -810     20    114
grg  140|    0     0    -3   -18    59    -1   .62   15   15 |     342    -569     22    136
igr  n/a|    0     0    -1    -7    96   -15  -.16    4    4 |    8573   -1593     17     97
jpl   80|    0    -1     3    -1    48   -42   .23   15   14 |    4012   -1072     16    117
mit  240|    0     0    -1   -15    14     0  -.16    6    5 |     116    -230     22    153
ngs  248|    0     1     0   -26    69   -13   .41   10    9 |     552   -1896   1717   3505
sio  264|    0    -1     2   165  -120    30  -.43   22   18 |     ---     ---    ---    ---

Table 2.1722.5   GPS week: 1722   Day: 5   MJD: 56303.000                            

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  260|    1     2     2    -5   -21   -32  -.48   11   11 |   -1718     925     17     89
emr   80|    0     0     7   -25    20    -4   .17   16   16 |    2479     194     16    101
esa  174|    0     0     1    60   -62    27   .07    6    6 |     306    -507     13    133
gfz  193|   -2     0    -6   -92   -67    29  -.37   10   10 |     196    -937     19    119
grg  140|    2    -2    -4    -4    35     2   .61   15   14 |    -616     912     20    146
igr  n/a|    0     0    -2    29    90   -30  -.14    4    4 |    7390    -169     17     84
jpl   80|   -2    -1     3    20    18   -15   .22   14   14 |    3407     194     16    117
mit  240|    0     0    -1   -12    13   -15  -.15    6    5 |    -690     996     25    179
ngs  248|    1     0     1     8   127    -7   .37   10    8 |   -1580     713   1848   3499
sio  264|    0    -2     4   165  -123  -129  -.51   20   17 |     ---     ---    ---    ---

Table 2.1722.6   GPS week: 1722   Day: 6   MJD: 56304.000                            

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|    0     0     2   -25    41   -19  -.51   11   10 |   -1733    1131     18     93
emr   80|    0     4     9   -53    56   -19   .17   16   16 |    1982    -205     17    106
esa  174|    1     0     0    47   -73    23   .03    5    5 |      65     -70     11     93
gfz  196|   -1    -3    -4   -43   -37    -5  -.37   14   13 |    -557     391     22    137
grg  140|    1    -3    -5   -25    53    16   .61   16   15 |    -561     349     22    145
igr  n/a|    0     0    -3   -28   119   -30  -.15    4    4 |    6377   -1144     20     92
jpl   80|    1     1     3    18    57   -25   .31   15   14 |    2713    -754     16    110
mit  240|    0     0    -2     3     5    16  -.17    6    5 |    -661     852     28    166
ngs  248|    0     0     2   -33    65   -44   .38   12    9 |   -1394     684   1530   3397
sio  264|    0    -3     2   111  -193   116  -.49   22   19 |     ---     ---    ---    ---

       
       
Table 3: Daily fit for each satellite and each centre resulting from weighted
         average combination and from long arc orbit dynamics (7-day). The
         first IGS column gives resulting satellite accuracy measures found in
         SP3 header. The last IGS column gives the RMS fit of the IGS orbit
         when processed through the 7-day arc evaluation.

         "E"    stands for eclipsing satellites (earth).
         "M"    stands for eclipsing satellites (moon).
         "X"    stands for excluded from the statistics but included in IGS orbit.
         "T"    stands for Total long arc orbit RMS for all satellites.
         "NE"   stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI" stands for median of the centre's satellite RMS.
         "MD"
         Units: mm.

Table 3.1722.0   GPS week: 1722   Day: 0   MJD: 56298.000                            

        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   12    5    9   10    4   15    8    9   17    3 |    47   54   58   58   61   55   60   57   57   52    56
   2  |    8   15    6   15   12    3   14    4    7   32    3 |    21   23   21   25   23   19   22   20   21   32    20
   3E |   11   18    8   16   20    5   16    9    8   30    4 |    43   38   38   47   26   41   36   40   37   43    37
   4  |    8    9    4    9   16    3   12    5    9   16    3 |    40   42   44   49   48   41   44   43   41   42    43
   5  |   13   16    5    8   13    4   14    5   11   18    3 |    18   21   12    9   17   15   19   11   16   15    14
   6E |   12   14    7   11   16    3   17    7   10   42    4 |    72   65   66   75   56   68   62   67   64   64    66
   7  |   12   14    5    9   21    3   13    8   10   18    4 |    16   24   21   13   34   16   22   16   25   19    17
   8  |    9    8    5    6   14    4   10    5   12   12    3 |    18   23   18   15   22   17   22   19   20   15    17
   9  |    8   10    5    8   17    4    9    6   11   24    3 |    30   34   31   30   32   28   34   27   35   26    30
  10  |   16    8    5   10   12    5    9    6    7   21    3 |    25   23   23   29   30   23   26   26   22   23    24
  11  |    9   15    7    7   16    6   11   10   11   19    4 |    27   41   39   38   49   34   41   34   37   33    35
  12  |   10   17    5   11   19    3   20   10   11   18    4 |    19   30   23   24   34   20   32   21   26   16    22
  13E |    9   11    5   10   13    3   11    5   10   13    3 |    35   40   36   37   40   35   39   36   38   36    36
  14E |    8    9    4    5   11    2    9    5    6   17    2 |    34   37   34   32   35   33   35   34   35   37    33
  15  |   20   21    5    9   18    5   18    8   12   15    5 |    25   35   25   19   30   21   29   19   26   25    22
  16  |    9   15    6   11   16    4   18    6   10   22    4 |    22   30   25   19   27   22   32   22   26   30    22
  17E |    9   16    5    8   15    3   15    6   13   14    4 |    24   31   26   28   30   25   29   26   30   30    26
  18  |    8   13    5   15   14    3   12    6    8   27    3 |    24   33   30   33   29   29   31   29   31   32    28
  19  |   14   17    9    8   20    3   13    8    8   16    4 |    26   31   23   27   35   26   30   26   30   28    25
  20  |    9    9    5    9    9    3   11    9   11   32    3 |    31   39   35   31   38   33   39   34   35   35    34
  21  |    6   13    6    5    8    4   14    8   10   23    3 |    23   26   25   24   28   23   27   22   26   25    22
  22  |    6   13    4    7   12    5   13    5    9   21    3 |    21   28   26   25   30   24   29   24   27   32    24
  23E |   10   19    5   11   12    5   16    9   12   21    4 |    68   66   70   66   69   66   67   63   69   55    66
  24  |   14   20    4    7   16    5   13    8    9   17    4 |    31   26   28   31   35   29   35   29   34   19    29
  25  |    9   18    4    6   17    2   14    5    8   15    3 |    21   27   24   24   28   22   32   22   25   18    22
  26E |   14   17    6   10   16    5   15   10   10   20    4 |    52   50   45   53   49   48   53   49   45   46    48
 X27  |    7  ---  ---  ---  ---   70  ---  ---  ---  ---    0 |    44  ---  ---  ---  ---   31  ---  ---  ---  ---    46
  28  |   10   16    7   10   22    4   16    7    9   17    4 |    27   33   25   20   31   24   31   26   26   25    24
  29E |   14   19    6    7   19    3   19    7   12   18    4 |    28   30   30   28   30   26   28   27   36   27    27
  30  |   10   10    6    9   14    5   11    6    7   20    3 |    13   18   13   12   15   12   20   13   15   21    11
  31  |    9   14    6    9   19    4   15    7    8   14    3 |    16   23   18   14   36   16   23   15   20   15    15
  32  |    6    8    5    6   10    3    8    6   10   24    2 |    13   22   20   20   28   17   23   17   22   23    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    6    9   16    4   14    7   10   21      |T   29   33   30   30   34   29   33   29   32   30    30
 WRMS |   11   15    5    9   14    4   13    7    8   17      |NE  25   29   26   25   32   24   30   24   27   25    26
 MEDI |    9   14    5    9   16    4   14    7   10   18      |MD  25   31   26   28   31   25   31   26   30   28    25

Table 3.1722.1   GPS week: 1722   Day: 1   MJD: 56299.000                            

        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   10    5    5   12    3   13    7    9   15    3 |    39   39   41   39   46   39   43   39   37   38    39
   2  |   11   14    7   14   11    3   15    4    9   33    3 |    20   17   17   20   18   13   18   14   15   26    15
   3E |   12   17    5    9   14    5   14    8    9   25    4 |    41   35   35   42   33   38   35   37   33   35    35
   4  |    9    9    4    7   11    3   10    3    9   15    2 |    29   29   32   30   34   29   32   28   30   32    30
   5  |   15   16    6    8   13    5   16    6   10   17    4 |    13   19   11   11   14   12   19    9   13   13    12
   6E |   14   16    5   13   15    6   16    7    8   35    4 |    68   64   66   72   59   67   61   65   61   60    65
   7  |   10   18    5    8   20    4   12    5    9   15    3 |    18   25   18   13   34   15   21   16   23   16    16
   8  |    8   10    6    6   12    4   10    4    9   15    3 |    19   24   17   17   22   17   22   18   18   19    18
   9  |    9   11    6    7   11    4   10    5   13   15    3 |    24   28   23   24   26   22   26   23   31   26    24
  10  |    9    8    4    7   11    4    9    3    6   22    2 |    17   19   17   16   24   17   19   14   18   20    16
  11  |    8   15    7   11   19    5   10    7   12   16    4 |    26   34   29   27   42   26   32   27   25   27    27
  12  |   11   17    6   11   19    3   16    7   11   18    4 |    17   27   22   23   33   20   26   19   29   14    20
  13E |    9   10    4    8   13    3    9    5    9   12    3 |    27   25   24   22   30   22   27   23   22   26    23
  14E |   10   12    5    8   12    2   10    7   13   17    3 |    18   24   21   23   22   17   19   18   24   27    19
  15  |   22   21    7    9   15    5   18    7   10   15    5 |    22   30   20   18   28   16   28   17   25   19    19
  16  |   11   15    5    9   16    6   15    6   11   19    3 |    19   27   20   17   26   20   26   19   26   24    19
  17E |   11   18    6    8   12    4   20    6   10   13    4 |    36   36   33   33   39   33   35   33   39   34    33
  18  |   15   13    6   15   13    3   15    8   10   27    4 |    23   26   20   27   23   19   23   19   23   20    20
  19E |   14   18    7   10   17    7   12    9    9   15    4 |    19   28   31   25   29   25   27   26   28   29    25
  20  |    8    9    7    8    9    3   11    5    8   33    3 |    21   26   24   20   27   19   29   20   24   27    22
  21  |   12   14    6    9   11    3   14    4    8   23    3 |    15   19   18   17   22   14   22   12   19   20    14
  22  |    9   12    4    7   11    4   12    7   13   20    3 |    15   21   19   17   24   15   22   14   19   21    16
  23  |    9   22    6    8   14    6   14    7    9   19    4 |    47   49   48   46   51   43   49   43   48   47    46
  24  |    9   21    6    9   16    5   12    6    8   16    3 |    22   25   23   24   32   21   26   22   31   19    22
  25  |   12   15    5   10   19    3   13    5    9   18    3 |    22   24   25   27   33   22   32   23   32   16    24
  26E |   15   18    5   10   15    6   18    9    7   22    4 |    46   44   45   46   42   43   42   43   38   43    42
 X27  |    6  ---  ---  ---  ---   73  ---  ---  ---  ---    0 |    53  ---  ---  ---  ---   41  ---  ---  ---  ---    54
  28  |   11   13    4   10   20    3   13    4    9   15    3 |    24   27   21   19   31   19   24   19   23   21    20
  29E |   11   18    9   10   19    4   17    9   15   22    4 |    27   33   29   30   33   27   31   28   37   30    28
  30  |   10    9    8    7   11    7   10    6   11   16    3 |    14   20   16   16   18   15   20   16   21   18    15
  31  |    6   13    5    9   21    4   13    6    7   15    3 |    12   21   15   12   38   12   20   13   20   14    14
  32  |    7    8    4    5   10    3    8    3    7   22    2 |    12   17   15   12   21   10   19   11   15   22    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    6    9   15    4   13    6   10   20      |T   25   28   25   25   30   24   28   23   27   25    25
 WRMS |   11   15    6    8   14    4   13    6    8   18      |NE  22   25   21   20   28   20   25   19   24   21    21
 MEDI |   10   14    6    9   13    4   13    6    9   17      |MD  22   26   22   23   30   20   26   19   25   24    20

Table 3.1722.2   GPS week: 1722   Day: 2   MJD: 56300.000                            

        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  |   16   13    4    5    8    4   14    6    8   14    3 |    32   41   42   47   41   42   43   43   41   39    41
   2  |   12   15    6   13   12    4   15    6   10   31    4 |    20   22   16   20   16   16   21   17   19   26    16
   3E |   11   18    6   14   14    5   16    8   11   25    4 |    39   35   38   41   26   37   36   37   37   32    35
   4  |   10    9    4    9   12    3   10    4   10   17    3 |    32   39   36   41   39   39   41   37   37   40    37
   5  |   16   15    6    9   13    3   14    5    7   15    3 |    19   20   12   13   11   13   20   12   17   15    14
   6E |   12   14    5   15   15    5   18    7   10   32    4 |    63   58   59   66   47   60   56   60   58   50    58
   7  |    9   20    4   10   14    7   12    6   12   21    3 |    20   30   22   14   35   18   25   23   30   14    21
   8  |   11   10    6    8   13    5   12    5    9   11    3 |    21   28   18   16   25   17   29   19   24   18    20
   9  |   11    9    3    7   13    3   11    3   12   14    3 |    17   22   17   16   23   14   22   16   20   18    16
  10  |    7    8    5    8   12    2    9    5   10   18    2 |    18   24   20   25   25   22   24   21   25   23    21
  11  |    8   17    4    8   17    4   11    6   12   16    3 |    21   32   27   31   39   27   31   27   30   26    27
  12  |   12   18    5   13   19    5   19   10    9   19    4 |    21   30   20   22   31   19   31   19   27   15    21
  13E |    8   12    3    9   11    3    8    5   12   14    3 |    32   36   29   27   36   28   31   30   32   27    29
  14E |    6   10    5    7   10    4    8    4   14   14    3 |    36   39   39   37   44   37   40   39   35   39    38
  15  |   17   21    5    8   19    6   15    6    9   16    4 |    20   30   18   15   28   16   24   15   22   21    17
  16  |    9   16    4    9   11    8   18    6   10   21    3 |    19   27   22   18   25   20   27   21   27   25    20
  17E |    7   21    5    7   16    4   21    7   13   16    4 |    21   31   24   23   31   23   33   24   32   26    25
  18  |    7   13    5   11   14    4   13    5   10   28    3 |    24   29   25   25   25   24   28   23   29   23    24
  19E |    8   20    7   12   17    5   14    5    9   15    4 |    24   27   26   28   34   23   25   22   26   25    23
  20  |    9   10    4    9    7    4   11    5    6   33    2 |    23   29   26   23   29   23   33   25   29   29    25
  21  |    7   12    4    8    7    4   14    5    8   25    2 |    17   23   24   23   24   20   24   18   24   19    19
  22  |    4   11    4    6   10    4   12    6   10   18    2 |    19   26   21   18   24   20   24   18   19   25    18
  23  |    7   18    5    8   16    6   13    5   10   20    3 |    21   30   26   25   34   23   28   22   31   23    24
  24  |   12   22    5    9   15    4   15    4    7   15    3 |    21   24   21   23   28   21   26   21   28   17    20
  25  |   13   16    6    8   16    6   14    4    8   16    3 |    25   27   27   23   28   24   33   24   30   18    25
  26E |   14   19    9   14   18    5   22   10    8   20    5 |    58   58   56   58   55   56   56   54   55   60    54
 X27  |    8  ---  ---  ---  ---  121  ---  ---  ---  ---    0 |    91  ---  ---  ---  ---   55  ---  ---  ---  ---    91
  28  |   10   14    5   10   18    3   12    4   11   15    3 |    22   30   20   20   33   21   28   21   29   24    23
  29E |   11   18    6    6   14    2   16    6   12   19    4 |    28   30   27   25   30   25   30   27   37   22    27
  30  |    7    9    4    7   11    5   10    5   10   17    2 |    16   20   16   14   18   14   20   15   23   23    16
  31  |   11   13    4    8   18    5   12    5   11   17    3 |    19   22   18   15   38   15   21   18   28   26    19
  32  |    9    9    4    6   11    4    9    3    7   24    2 |    11   20   17   17   21   12   20   13   19   22    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    5    9   14    5   14    6   10   20      |T   27   30   26   26   30   25   30   25   29   26    27
 WRMS |   10   15    5    9   13    5   13    6    9   18      |NE  24   27   21   21   28   22   27   21   26   23    25
 MEDI |    9   14    5    8   14    4   13    5   10   17      |MD  21   29   24   23   29   22   28   22   29   24    23

Table 3.1722.3   GPS week: 1722   Day: 3   MJD: 56301.000                            

        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   14    5   10    8    4   15    6    8   11    3 |    36   46   49   46   47   48   50   49   44   45    45
   2  |   12   14    6   16   10    5   15    7    8   33    4 |    19   21   17   23   19   18   21   18   20   27    17
   3E |   11   29    5   22   16    6   18   10   12   22    5 |    42   40   37   47   28   39   36   39   40   33    36
   4  |    7    9    5    8   12    3    8    5    8   18    2 |    35   35   34   41   35   35   33   36   42   42    36
   5  |    9   15    5    9    9    6   15    5   11   19    3 |    14   21   14   10   16   12   22   11   20   20    13
   6E |   13   19    6   17   16    6   17    9   13   25    4 |    67   61   62   69   53   63   57   64   60   50    61
   7  |   10   16    5   10   16    5   13    5    9   24    3 |    20   28   21   18   36   17   23   19   27   25    20
   8  |    8   10    5    8   11    4    9    4    9   11    2 |    20   28   21   20   26   20   26   22   26   20    22
   9  |   11   12    3    7   13    4    8    4   10   13    3 |    38   41   38   37   37   37   38   35   39   35    36
  10  |    6    7    6    7    9    2    8    3   10   19    2 |    22   21   22   23   24   21   21   21   23   22    22
  11  |    7   16    4    7   17    3   11    4   12   11    3 |    25   36   31   31   40   31   35   31   34   30    30
  12  |   14   15    4   13   19    5   17    8   15   20    4 |    22   31   25   28   32   23   31   22   40   18    25
  13E |    7   12    6   11   11    4   10    7   11   12    3 |    38   39   37   38   45   35   39   36   35   40    36
  14E |    9   10    5    8   10    4    9    6   11   16    3 |    61   65   62   62   63   61   63   60   59   63    60
  15  |   22   20    5   10   16    4   16    6   15   18    5 |    26   33   24   18   30   19   27   19   29   26    22
  16  |   10   18    5   12   11    6   18    7   12   18    4 |    23   33   24   24   27   24   31   24   32   26    23
  17E |   11   22    6    9   14    4   22    7    8   13    4 |    28   35   31   30   39   28   34   30   34   32    30
  18  |    7   13    5   16   13    3   13    4   12   27    3 |    25   29   28   32   27   26   29   26   33   27    27
  19E |   12   28    5   11   12    4   12    9    9   15    4 |    21   31   21   20   27   20   22   17   27   21    18
  20  |    8   11    5   11    9    4   11    3    9   31    3 |    29   34   33   27   32   28   36   28   31   33    30
  21  |    5   12    5    9    9    5   14    6    9   24    3 |    21   26   24   27   27   23   27   23   28   22    23
  22  |    5   13    4    8    8    3   10    3    6   17    2 |    22   29   25   24   27   23   28   23   27   28    24
  23  |    6   25    5   10   16    3   15    6   10   15    4 |    20   32   25   18   34   20   31   21   25   23    21
  24  |   19   23    5   11   19    6   11    7   11   19    4 |    28   23   22   25   28   23   26   22   35   19    22
  25  |   11   17    5   11   14    6   13    6   13   16    4 |    20   26   27   31   29   26   32   26   37   21    26
  26E |   16   20    7   12   15    7   22    9   11   26    5 |    80   74   69   75   72   71   74   73   65   65    72
 X27  |    8  ---  ---  ---  ---   83  ---  ---  ---  ---    0 |    55  ---  ---  ---  ---   43  ---  ---  ---  ---    58
  28  |   10   13    4   11   18    3   14    6   10   14    3 |    28   30   25   21   32   23   29   25   27   26    25
  29E |   13   17    7   10   20    4   20    9   15   14    4 |    37   40   41   41   40   37   42   41   41   37    39
  30  |    9   11    4   11   15    4   10    4   13   14    3 |    14   22   18   18   18   17   21   17   26   19    16
  31  |   10   12    5   10   21    5   12    7   10   14    3 |    17   22   19   13   37   16   22   17   24   16    17
  32  |    8   10    3    8   11    3    8    5   10   21    2 |    13   19   17   16   22   14   21   14   17   22    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   16    5   11   14    5   14    6   11   19      |T   30   33   30   30   33   29   33   29   33   30    30
 WRMS |   11   16    5   10   11    4   13    6    9   19      |NE  25   28   25   24   29   24   28   24   30   25    25
 MEDI |   10   14    5   10   13    4   13    6   10   18      |MD  25   31   25   27   32   23   31   24   32   26    25

Table 3.1722.4   GPS week: 1722   Day: 4   MJD: 56302.000                            

        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   13    6    9   11    3   15    3    7   14    3 |    40   43   44   42   47   43   47   45   45   42    43
   2  |   11   14    7   17   10    4   16    8    7   34    4 |    21   20   16   22   17   16   20   16   15   25    15
   3E |   13   20    8   14   26    6   16    7   16   22    5 |    43   38   39   44   34   40   38   41   44   34    38
   4  |    7    8    5   13   14    3   11    4    7   17    3 |    25   31   29   33   32   30   30   30   28   36    29
  X5  |    8  ---  ---  ---  ---   38  ---  ---  ---  ---    0 |    24  ---  ---  ---  ---   27  ---  ---  ---  ---    24
   6E |   17   19    7   17   20    5   18    7   16   20    5 |    66   64   64   70   52   64   59   64   64   58    62
   7  |    8   15    5    9   18    4   17    5    8   31    3 |    16   23   18   13   36   16   26   17   23   29    18
   8  |    9   13    4    9   11    3   12    7    8   16    3 |    17   25   16   16   21   14   25   16   18   17    17
   9  |   10   12    4   12   13    4   13    5   10   14    3 |    22   32   23   27   27   24   35   28   29   27    27
  10  |    6   10    6   12    7    3    9    5   11   23    3 |    17   22   18   21   23   19   24   19   17   22    19
  11  |   10   15    6   10   18    3   13    8   10   14    4 |    29   38   34   31   44   31   37   30   32   30    31
  12  |   15   15    7   14   19    4   17    5    8   19    4 |    20   30   23   29   32   20   28   22   26   20    22
  13E |    9   11    5    9   11    3   11    4    8   21    3 |    41   44   40   44   43   40   45   40   44   44    41
  14  |   10   12    6   13   14    5   12    7    9   14    3 |    81   81   82   85   85   79   83   82   76   80    81
  15  |   18   18    5   12   18    6   15    6   15   19    4 |    20   32   21   19   30   20   29   20   33   28    21
  16  |   10   16    6   13   13    3   15    5   10   18    3 |    23   32   26   21   29   25   32   23   28   26    24
  17E |    8   19    5   11   13    5   24    6   12   12    4 |    17   27   20   20   29   18   27   20   27   21    20
  18  |    7   12    4   20   14    3   13    4   11   28    3 |    24   28   27   35   27   25   28   26   29   26    26
  19E |    7   21    6   12   15    4   14    5    9   14    4 |    18   26   19   23   26   19   21   17   23   22    18
  20  |    8    9    7   11    8    4   11    4   11   32    3 |    29   33   32   25   34   30   35   30   36   29    31
  21  |    5   12    4   12   10    4   15    4    8   26    3 |    20   25   22   22   28   20   26   20   25   25    21
  22  |    8   10    4   12   10    4   11    3   10   17    3 |    22   26   25   24   31   23   28   23   26   27    24
  23  |    6   19    6    9   17    3   16    5    9   16    3 |    23   29   24   20   33   22   29   22   29   23    23
  24  |   11   22    5   10   17    5   13    7   12   20    4 |    23   21   21   26   30   21   27   26   29   19    23
  25  |   12   16    5   16   16    3   14    5   11   13    4 |    21   29   24   31   30   22   32   25   27   20    25
  26E |   12   23   11   14   20    9   25   10   11   52    5 |   100  103   98  105  104   95  106  100  102   89   102
 X27  |    8  ---  ---  ---  ---   52  ---  ---  ---  ---    0 |    64  ---  ---  ---  ---   31  ---  ---  ---  ---    65
  28  |    8   15    5   12   16    3   13    5   10   13    3 |    23   31   23   18   32   21   29   21   29   20    22
  29E |   13   21    6   13   20    4   21    7   10   12    4 |    42   48   42   43   45   44   47   43   51   45    43
  30  |    8   11    4   12   14    3   12    3    9   13    3 |    14   23   17   16   15   17   21   15   25   19    16
  31  |   12   14    5   13   18    4   14    6   10   19    4 |    16   23   18   17   35   18   22   15   26   19    16
  32  |    7    9    5    8   13    3    8    3   12   18    3 |    14   21   19   18   26   17   22   17   20   21    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    6   13   15    4   15    6   10   22      |T   30   34   30   32   35   29   35   30   34   31    31
 WRMS |   10   15    6   11   15    4   14    5    9   18      |NE  23   28   23   23   30   23   28   23   27   24    25
 MEDI |    9   14    5   12   14    4   14    5   10   18      |MD  23   29   23   24   31   22   29   23   28   26    24

Table 3.1722.5   GPS week: 1722   Day: 5   MJD: 56303.000                            

        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   19    4    8   11    3   16    3    7   13    3 |    33   34   33   31   37   31   36   30   30   30    30
   2  |   12   16    7   13   10    4   14    7    6   34    3 |    19   19   11   18   12   12   19   16   16   28    13
   3E |   16   23   10   19   18    7   18    8   22   27    6 |    43   39   37   46   30   38   34   39   43   35    37
   4  |   13   10    5   11   11    4   14    4   10   14    3 |    16   21   19   25   23   19   22   19   20   22    19
   5  |   11   16    7   10   11    6   17    5    6   23    3 |    14   16    7   10    9   11   17    8    8   14    10
  X6E |   18  ---    8   19   22    8   20   12   29   56    7 |    65  ---   61   67   52   62   57   65   68   72    62
   7  |   12   16    8   10   16    4   15    6    9   28    4 |    21   25   22   12   35   17   24   17   27   24    18
   8  |   11   14    5    8   10    4   11    4   10   18    3 |    20   26   21   18   25   19   27   20   25   19    21
   9  |    9   11    5    9   13    4   15    6    9   18    3 |    23   28   23   22   24   22   28   23   27   24    23
  10  |   13   10    8   10   10    4    9    7    9   24    3 |    19   18   18   23   22   18   19   18   19   22    18
  11  |   10   19    6    8   18    3   11    5   11   12    3 |    23   32   26   25   38   23   29   22   32   23    24
  12  |   10   18    8   11   20    5   17    7   12   20    4 |    18   28   17   23   32   16   30   16   24   16    18
  13E |   12   13    7   10   12    5   11    6    8   26    3 |    54   60   58   51   60   51   57   51   61   47    54
  14  |    6   10    4    6   18    3    8    5    7   13    2 |    27   25   27   25   36   26   31   25   27   27    25
  15  |   16   22    5   10   17    3   16    5    7   16    4 |    24   29   16   15   27   13   25   15   21   21    16
  16  |   13   16    6   12   13    5   15    8   12   17    4 |    23   26   19   19   26   19   26   19   27   22    19
  17E |    9   19    7    8   17    4   18    5   11   14    4 |    32   40   33   32   41   31   38   34   37   35    34
  18M |    7   14    5   16   15    3   13    3    8   27    3 |    23   26   25   32   23   24   26   23   26   24    24
  19E |   13   13    5   12   13    3    9    5   10   13    3 |    13   20   17   17   24   17   20   15   26   20    15
  20  |   10   12    5   11    9    3   11    7    7   28    3 |    27   28   27   19   29   25   30   24   28   22    24
  21M |   11   13    4    9   11    5   14    6    8   24    3 |    21   22   18   22   27   17   25   18   21   29    18
  22M |    5   10    5    8   13    3   13    4   13   16    3 |    19   25   23   19   28   21   25   18   26   25    20
  23  |   10   18    6    8   14    4   15    5   10    9    3 |    18   26   24   18   30   21   27   20   28   18    20
  24  |   11   21    5    8   20    4   14    5    9   20    4 |    24   24   23   25   33   22   27   24   28   19    23
  25  |   10   14    7   11   17    4   14    4   10   16    3 |    17   22   19   24   26   17   31   19   21   17    19
  26  |   14   18    7    9   21    6   19    8    9   22    4 |    60   63   55   63   63   52   66   57   52   63    59
 X27  |    8  ---  ---  ---  ---   55  ---  ---  ---  ---    0 |    43  ---  ---  ---  ---   43  ---  ---  ---  ---    45
  28  |   11   12    7   11   18    2   17    4   10   15    4 |    27   30   25   19   34   21   27   20   26   19    22
  29E |   12   20    8    9   22    4   21    7   10   15    4 |    69   76   69   68   80   69   72   75   72   69    72
  30  |   10   10    8   12   16    5   12    6   15   16    4 |    14   17   15   14   16   13   18   14   20   18    12
  31  |   11   14    6    9   20    4   15    5    8   17    3 |    16   22   13   14   35   14   21   16   21   15    14
  32  |    8   10    4    6   11    2    8    7    8   18    2 |    13   17   16   13   22   14   21   15   19   20    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   16    6   10   15    4   14    6   10   20      |T   27   29   26   26   32   25   30   25   29   27    26
 WRMS |   11   16    6   10   14    4   14    5    8   17      |NE  21   24   19   19   26   19   25   18   23   20    20
 MEDI |   11   14    6   10   15    4   14    5    9   18      |MD  23   26   23   22   29   21   27   20   26   22    20

Table 3.1722.6   GPS week: 1722   Day: 6   MJD: 56304.000                            

        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   24    4   12   14    4   14    6    7   12    4 |    49   57   55   54   62   56   56   57   53   56    55
   2  |    8   17    6   18   14    5   17    7   10   36    4 |    25   29   23   27   25   22   26   26   21   38    24
   3E |   16   24    7   15   21    7   22    6   34   27    6 |    53   48   52   52   43   50   48   47   51   51    46
   4  |    7   12    4   14   13    3   12    6   11   16    3 |    32   36   35   43   41   35   35   35   29   41    35
   5  |   11   16    5   12   13    5   14    5    8   27    3 |    15   18   10   10    9    9   16    9    7   19    11
   6E |   18   19    7   16   21    7   23    8   25   27    5 |    74   74   74   79   65   73   74   74   83   70    74
   7  |   11   15    4   15   16    4   14    4   10   31    3 |    18   26   22   16   35   18   26   19   24   25    20
   8  |    8   12    3   11   12    4   12    4   10   16    3 |    21   32   23   23   28   22   31   24   25   22    25
   9  |    7   11    3   15   12    6   12    3   10   22    3 |    32   38   33   30   30   29   41   32   32   29    32
  10  |   12   10    4   13   10    4    9    5   12   27    3 |    22   21   23   29   29   23   26   23   22   28    23
  11  |    8   18    6   14   20    5   10    6    9   12    4 |    34   41   38   39   48   37   38   37   40   38    37
  12  |   10   15    5   18   22    5   17    6    9   23    4 |    27   34   26   33   34   27   34   28   30   25    28
  13  |   10   18    5   15   19    5   10    7   10   15    4 |    66   69   60   67   65   61   65   61   65   62    63
  14  |    8   15    4   11   18    3    8    5    8   11    3 |    30   37   31   32   36   32   32   31   32   33    31
  15  |   19   20    6   14   18    4   16    7   12   24    4 |    31   43   30   24   34   27   38   29   35   37    30
  16  |   14   14    5   17   19    5   15    4   10   20    4 |    29   34   29   24   29   28   35   28   29   30    27
  17E |   10   17    6   10   14    5   20    7   15   12    4 |    31   35   33   36   42   32   38   36   41   34    35
  18  |    6   12    4   20   17    3   12    4   10   33    3 |    31   34   31   36   30   29   32   31   34   43    32
  19E |    9   18    7   12   15    5   14    6    9   14    3 |    16   22   23   21   23   20   21   18   22   24    17
  20  |   10   12    7   13    9    3   11    7   11   30    3 |    35   38   37   34   38   35   39   37   36   38    36
  21  |   11   13    4   13   12    4   14    7    8   24    3 |    28   31   29   31   33   26   31   31   29   29    30
  22  |    7   11    3   10   18    5   11    6    8   17    3 |    24   29   27   29   35   26   30   30   28   33    28
  23  |    9   20    6   12   18    4   15    5    5   12    4 |    27   34   28   24   36   27   34   25   30   26    27
  24  |   10   20    4   11   18    4   15    5   11   20    4 |    29   26   26   30   31   27   30   30   31   24    28
  25  |   12   14    5   15   18    3   15    7   11   20    4 |    27   32   29   34   30   29   36   32   35   25    30
  26  |    8   13    9   10   13    4   17    6   16   31    4 |    33   39   38   31   37   33   38   30   35   42    32
 X27  |    8  ---  ---  ---  ---   52  ---  ---  ---  ---    0 |    58  ---  ---  ---  ---   47  ---  ---  ---  ---    61
  28  |    8   14    6   11   16    4   13    6   11   14    3 |    30   37   31   29   39   27   35   29   32   30    31
  29E |   18   20    5   15   22    4   22    6   10   18    5 |    47   48   45   46   50   44   47   45   49   44    45
  30  |    9   13    5   15   16    4   11    4    8   17    3 |    20   29   20   22   22   20   26   20   23   24    21
  31  |   11   12    4   13   19    4   13    4   10   16    3 |    20   26   17   15   37   19   24   17   23   19    18
  32  |   11   11    4   10   13    4    8    5   13   26    3 |    13   20   19   22   29   18   23   21   21   32    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   16    5   14   16    4   15    6   12   22      |T   32   36   32   32   36   31   35   32   33   34    32
 WRMS |   10   16    5   13   15    4   14    5    9   19      |NE  28   32   27   28   33   27   32   28   28   30    29
 MEDI |   10   15    5   13   16    4   14    6   10   20      |MD  29   34   29   30   35   27   34   30   31   32    30



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 4.1722   GPS week: 1722   MJD: 56298.0-56304.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3020 |U    4     5    14 |  ----  ----  ---- |U    7    10    17 |
emr | emr 2938 |     7     8    18 |  ----  ----  ---- |     9    11    19 |
esa | esa 2962 |     5     5    14 |  ----  ----  ---- |     6     8    15 |
gfz | gfz 2946 |U    5     5    16 |  ----  ----  ---- |U    6    10    15 |
grg | grg 2962 |U    9     8    23 |  ----  ----  ---- |     9    11    21 |
igr | igr 2962 |     5     5    14 |  ----  ----  ---- |     6    10    15 |
igs | igs 2936 |     5     5    16 |  ----  ----  ---- |     7    11    17 |
jpl | jpl 2951 |     5     6    16 |  ----  ----  ---- |     7    10    20 |
mit | mit 2962 |     6     6    20 |  ----  ----  ---- |U    8    11    19 |



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

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

Table 5.1722.0   GPS week: 1722   Day: 0   MJD: 56298.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     4     5    13 |  ----  ----  ---- |     6     5    15 |
emr | emr 2964 |     7     8    18 |  ----  ----  ---- |     7     7    19 |
esa | esa 2976 |     5     4    13 |  ----  ----  ---- |     5     4    16 |
gfz | gfz 2934 |     5     4    14 |  ----  ----  ---- |     6     8    19 |
grg | grg 2976 |     7     4    19 |  ----  ----  ---- |     7     7    22 |
igr | igr 2975 |     4     4    13 |  ----  ----  ---- |     5     5    16 |
igs | igs 2969 |     5     4    16 |  ----  ----  ---- |     6     6    17 |
jpl | jpl 2964 |     6     6    15 |  ----  ----  ---- |     9     7    23 |
mit | mit 2976 |     6     5    18 |  ----  ----  ---- |     7    10    21 |

Table 5.1722.1   GPS week: 1722   Day: 1   MJD: 56299.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     4     5    12 |  ----  ----  ---- |     8    11    16 |
emr | emr 2964 |     7     6    18 |  ----  ----  ---- |    11    14    22 |
esa | esa 2976 |     6     5    12 |  ----  ----  ---- |     7     8    12 |
gfz | gfz 2963 |     5     4    13 |  ----  ----  ---- |     7    13    15 |
grg | grg 2976 |     9     6    21 |  ----  ----  ---- |    10    13    23 |
igr | igr 2976 |     5     5    12 |  ----  ----  ---- |     7    12    14 |
igs | igs 2961 |     6     5    17 |  ----  ----  ---- |     9    14    17 |
jpl | jpl 2963 |     5     6    15 |  ----  ----  ---- |     8    12    22 |
mit | mit 2976 |     7     7    19 |  ----  ----  ---- |    10    14    20 |

Table 5.1722.2   GPS week: 1722   Day: 2   MJD: 56300.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3024 |     5     7    17 |  ----  ----  ---- |     9    10    13 |
emr | emr 2964 |     7     8    16 |  ----  ----  ---- |    11    13    19 |
esa | esa 2976 |     6     7    14 |  ----  ----  ---- |     8     9    13 |
gfz | gfz 2965 |     6     7    16 |  ----  ----  ---- |     8    11    14 |
grg | grg 2976 |     9     9    26 |  ----  ----  ---- |    11    11    23 |
igr | igr 2976 |     6     8    14 |  ----  ----  ---- |     8    10    13 |
igs | igs 2947 |     6     7    17 |  ----  ----  ---- |     9    12    16 |
jpl | jpl 2962 |     6     7    11 |  ----  ----  ---- |     8    11    19 |
mit | mit 2976 |     8     8    19 |  ----  ----  ---- |     9    13    17 |

Table 5.1722.3   GPS week: 1722   Day: 3   MJD: 56301.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3041 |     4     5    16 |  ----  ----  ---- |    10    10    17 |
emr | emr 2964 |     7     8    22 |  ----  ----  ---- |    12    14    23 |
esa | esa 2976 |     5     6    19 |  ----  ----  ---- |     8     8    14 |
gfz | gfz 2962 |     6     5    19 |  ----  ----  ---- |     8    10    14 |
grg | grg 2976 |     9    10    29 |  ----  ----  ---- |    12    11    20 |
igr | igr 2976 |     5     6    17 |  ----  ----  ---- |     9    13    20 |
igs | igs 2947 |     5     6    21 |  ----  ----  ---- |    10    11    21 |
jpl | jpl 2964 |     6     6    19 |  ----  ----  ---- |    10    11    26 |
mit | mit 2976 |     5     7    26 |  ----  ----  ---- |    10    15    23 |

Table 5.1722.4   GPS week: 1722   Day: 4   MJD: 56302.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2952 |     4     4    14 |  ----  ----  ---- |     6     8    15 |
emr | emr 2872 |     9     9    19 |  ----  ----  ---- |     8     9    16 |
esa | esa 2880 |     5     4    14 |  ----  ----  ---- |     5     7    13 |
gfz | gfz 2867 |     5     4    15 |  ----  ----  ---- |     5     8    15 |
grg | grg 2880 |    11     8    23 |  ----  ----  ---- |     9    11    21 |
igr | igr 2880 |     4     5    15 |  ----  ----  ---- |     5     7    12 |
igs | igs 2857 |     5     5    16 |  ----  ----  ---- |     8    10    16 |
jpl | jpl 2872 |     5     7    16 |  ----  ----  ---- |     6     7    14 |
mit | mit 2880 |     6     7    19 |  ----  ----  ---- |     6     7    14 |

Table 5.1722.5   GPS week: 1722   Day: 5   MJD: 56303.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3026 |     5     6    15 |  ----  ----  ---- |     6    16    25 |
emr | emr 2876 |     8     8    17 |  ----  ----  ---- |     7    17    20 |
esa | esa 2976 |     4     5    14 |  ----  ----  ---- |     5    17    25 |
gfz | gfz 2965 |     5     6    26 |  ----  ----  ---- |     5    12    17 |
grg | grg 2976 |     9    11    25 |  ----  ----  ---- |    10    19    28 |
igr | igr 2976 |     4     5    16 |  ----  ----  ---- |     5    16    23 |
igs | igs 2946 |     5     5    14 |  ----  ----  ---- |     5    16    24 |
jpl | jpl 2967 |     5     7    18 |  ----  ----  ---- |     5    18    24 |
mit | mit 2976 |     5     5    21 |  ----  ----  ---- |     7    14    24 |

Table 5.1722.6   GPS week: 1722   Day: 6   MJD: 56304.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3043 |     3     5    10 |  ----  ----  ---- |     5     8    14 |
emr | emr 2968 |     7     9    19 |  ----  ----  ---- |     7     4    13 |
esa | esa 2976 |     4     4    11 |  ----  ----  ---- |     4     6     9 |
gfz | gfz 2967 |     4     4    10 |  ----  ----  ---- |     4     6    11 |
grg | grg 2976 |     8    12    21 |  ----  ----  ---- |     7     5    11 |
igr | igr 2976 |     4     4    12 |  ----  ----  ---- |     5     7     9 |
igs | igs 2926 |     4     4    11 |  ----  ----  ---- |     5     6     9 |
jpl | jpl 2966 |     5     6    15 |  ----  ----  ---- |     5     8    13 |
mit | mit 2976 |     5     3    14 |  ----  ----  ---- |     8     6    15 |


Table 6: Earth Orientation Parameters weekly summary.                          
                                                                              
        Weekly mean and standard deviation of Centre ERP, ERP rates and       
        LOD differences with respect to IGS combined values. See Table 7 for  
        the daily summaries.                                                  
                                                                              
        Xpole,Xrt: x pole and x pole rate                          
        Ypole,Yrt: y pole and y pole rate                       
        LOD      : Length Of Day                                               
                                                                              
        AC LOD BIAS    : 10-day mean LOD bias with respect to Bulletin A     
        AC LOD BIAS RMS: RMS of AC LOD BIAS                              
                                                                              
        FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
              for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1722   GPS week: 1722   MJD: 56298.500-56304.500

                                                         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 |      26     -31     154      94      1 |       4     10
            |      22      21      66     106      5 |       2
emr   uuuuu |      -4      25    -210    -134     -3 |     -12     17
            |      22      23      67      80     14 |       4
esa   uuuuu |     -20     -11      29     -77      2 |      -3      9
            |      34      35      36      34      3 |       2
gfz   uuuuu |      44      58     -21      28     -5 |       9     13
            |      24      22     163      61      4 |       2
grg   uuuux |       7     -12      49      29     13 |      -4     21
            |      13      12      73      46     14 |       2
igr   xxxxx |     -59       8     -28      31     -3 |       1      8
            |      18      20      43      57      3 |       2
irf   xxxxx |       4      -9      14      12      5 |      -2      8
            |      18      17      22      28      3 |       2
jpl   uuuuu |     -13       6    -160     -15     -7 |      -3     12
            |      22      31      59      76     14 |       4
mit   uuuuu |      14      -8       0      37     10 |       0     11
            |      21      27      72      41      9 |       2
ngs   uuuuu |     -43       7      10      38     -1 |       1      7
            |      30      49     151     147      4 |       1
sio   xxxxx |     234    -211    -381     177     -9 |      18     20
            |      53      59      70      82      3 |       3


Table 7.1722.0   GPS week: 1722   Day: 0   MJD: 56298.500

                                                         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 |      22     -34     197      30      4 |       0      9
emr   uuuuu |      30      53    -146     -53     -7 |      -9     16
esa   uuuuu |     -88     -48      68    -106      3 |      -6     10
gfz   uuuuu |      92      60    -120      77     -2 |       8     14
grg   uuuux |      23     -21      71      81     -6 |      -1     23
igr   xxxxx |     -27      33      41      41     -5 |       0     10
irf   xxxxx |      34       3      -1      25      7 |      -4      8
jpl   uuuuu |       9      34     -85      45      0 |      -1     12
mit   uuuuu |      48      26     -74      -7     11 |      -2     10
ngs   uuuuu |     -45     -21      37      86     -8 |       1      7
sio   xxxxx |     286    -267    -455     178     -8 |      19     22

Table 7.1722.1   GPS week: 1722   Day: 1   MJD: 56299.500

                                                         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 |      19     -50      91    -102      9 |       3      9
emr   uuuuu |      11      25    -174     -14    -17 |      -8     15
esa   uuuuu |     -33     -41      58     -89      1 |      -3      8
gfz   uuuuu |      42      58      36      69     -7 |      11     14
grg   uuuux |      12      -1     125      88     -5 |      -3     22
igr   xxxxx |     -49      32     -54      45     -8 |       3      9
irf   xxxxx |      19      17      13      44      2 |      -3      8
jpl   uuuuu |      -9      16     -94      51    -12 |       2     10
mit   uuuuu |      34      33     -58      50      2 |      -2     11
ngs   uuuuu |     -67     -31      -5       7      3 |       2      6
sio   xxxxx |     248    -288    -264     335    -12 |      21     23

Table 7.1722.2   GPS week: 1722   Day: 2   MJD: 56300.500

                                                         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     -30     142     200     -2 |       6     11
emr   uuuuu |       5      54    -269     -98    -12 |      -8     15
esa   uuuuu |     -16     -43      28     -22     -1 |      -1      7
gfz   uuuuu |      40      36     167      72     -8 |      12     15
grg   uuuux |     -14       1      92      -3     27 |      -5     21
igr   xxxxx |     -80       3      -5     105     -4 |       3      9
irf   xxxxx |       0      -1      37      41      9 |      -1      8
jpl   uuuuu |     -48      41    -121      26     -9 |       1     10
mit   uuuuu |       6      -2     -33     -14     26 |      -1     11
ngs   uuuuu |     -15      29    -105    -143     -1 |       3      8
sio   xxxxx |     314    -152    -375     138     -8 |      21     22

Table 7.1722.3   GPS week: 1722   Day: 3   MJD: 56301.500

                                                         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 |      29     -64     281     198      2 |       4     11
emr   uuuuu |     -37       4    -197    -172    -14 |     -12     18
esa   uuuuu |       7       6       5     -40      8 |      -3      8
gfz   uuuuu |      21      23     182      74     -5 |       9     14
grg   uuuux |       3     -18      75      53     15 |      -7     19
igr   xxxxx |     -75      -4     -32      85     -4 |       1      9
irf   xxxxx |     -14     -19      21      21      5 |      -2      8
jpl   uuuuu |     -33     -19    -209     -43     -9 |      -2     11
mit   uuuuu |       3     -22     -55      47      8 |      -1     11
ngs   uuuuu |     -21     102    -116    -162     -3 |       1      8
sio   xxxxx |     199    -202    -353     232     -9 |      18     20

Table 7.1722.4   GPS week: 1722   Day: 4   MJD: 56302.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       2      -3     138      71     -3 |       4     11
emr   uuuuu |     -21      33    -332    -189      1 |     -15     20
esa   uuuuu |       9     -14      60     -97      1 |      -2      9
gfz   uuuuu |      45      69     -24     -32    -10 |       8     13
grg   uuuux |      -2      -2      69      20     23 |      -6     20
igr   xxxxx |     -60      10     -75     -63     -4 |       0      8
irf   xxxxx |       7     -20      45      -5      7 |      -1      8
jpl   uuuuu |     -21      16    -235     -57    -15 |      -4     11
mit   uuuuu |      -1     -29     110      62     17 |       0     12
ngs   uuuuu |     -19      19    -157     167      3 |       1      7
sio   xxxxx |     166    -222    -475     116    -12 |      17     20

Table 7.1722.5   GPS week: 1722   Day: 5   MJD: 56303.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      66     -19     134     135      1 |       4     11
emr   uuuuu |     -14      -7    -168    -224     19 |     -17     20
esa   uuuuu |     -23      36     -33    -111      5 |      -2      9
gfz   uuuuu |      42      79    -129     -71      1 |       6     10
grg   uuuux |      11     -32       5      -2     21 |      -3     21
igr   xxxxx |     -53     -25       3      -1      3 |      -1      7
irf   xxxxx |       1     -35      -1     -27      6 |       0      9
jpl   uuuuu |       1       2    -190      30    -24 |      -7     11
mit   uuuuu |      21     -32      42      21      6 |       3     13
ngs   uuuuu |     -98     -35     199     221      2 |       1      7
sio   xxxxx |     194    -223    -368     105     -8 |      15     18

Table 7.1722.6   GPS week: 1722   Day: 6   MJD: 56304.500

                                                         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 |       6     -19      96     125     -7 |       4     11
emr   uuuuu |      -3      15    -181    -190     12 |     -15     18
esa   uuuuu |       7      30      16     -76     -1 |      -2      8
gfz   uuuuu |      23      85    -260       6      0 |       5     10
grg   uuuux |      18      -8     -95     -34     19 |      -3     21
igr   xxxxx |     -70       6     -73       5     -2 |      -1      7
irf   xxxxx |     -18      -8     -15     -15      1 |       0      9
jpl   uuuuu |      10     -47    -186    -157     21 |     -10     17
mit   uuuuu |     -11     -28      68     102      1 |       4     13
ngs   uuuuu |     -34     -16     219      94     -2 |      -1      8
sio   xxxxx |     234    -123    -378     135     -5 |      13     18



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