[IGSREPORT-28607] Wk 2203 IGS Final Orbits

acc acc at igs.org
Mon Apr 18 08:17:53 UTC 2022


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2203   (Mar 27, 2022 - Apr 02, 2022)

Contacts: acc at igs.org


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:

igs2203[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2203[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2203[0-6].cls  IGS GPS clock combination summary report.
igs22037.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs22037.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   | BRFT HYDE NTUS BRFT HYDE
                0  |  ESA   | BOGT DAV1 BOGT OUS2
                0  |  GFZ   | AREQ DAV1 OUS2 AREQ OUS2
                0  |  GRG   | 13 13 YEL2 SGOC STK2 YEL2
                0  |  JPL   | MATE NTUS
                0  |  NGS   | 11
                1  |  COD   | ASCG GUAM MAYG MKEA SGOC TWTF ZAMB MKEA
                1  |  EMR   | TWTF WUHN
                1  |  ESA   | 14 OUS2 WES2 OUS2
                1  |  GFZ   | HARB ZAMB ZAMB
                1  |  GRG   | BRFT SVTL BRFT SVTL
                1  |  JPL   | NTUS NTUS
                1  |  MIT   | 14
                1  |  NGS   | 11
                2  |  COD   | OUS2 TIXI OUS2 TIXI
                2  |  ESA   | 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 21
                2  |  ESA   | 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8
                2  |  ESA   | 9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
                2  |  ESA   | 27 28 29 30 31 32 CRO1 PTBB CRO1 PTBB
                2  |  GFZ   | BOGT CRO1 BOGT CRO1
                2  |  GRG   | 17 19 CRO1 MAYG YELL CRO1
                2  |  NGS   | 11
                3  |  COD   | SALU SYOG TIXI ZAMB SALU SYOG TIXI
                3  |  ESA   | PTBB SVTL PTBB SYOG
                3  |  GFZ   | AREQ POHN SAVO AREQ POHN SAVO SYOG ZAMB
                3  |  GRG   | 13 13 HYDE SYOG HYDE
                3  |  JPL   | 28 BADG IISC SYOG BADG IISC
                3  |  NGS   | 11
                4  |  COD   | MAYG TIXI TONG MAYG TIXI
                4  |  EMR   | MCM4 FAIR MCM4
                4  |  ESA   | FAIR OUS2 PTBB YEL2 FAIR OUS2 PTBB YEL2
                4  |  GFZ   | NYA2 OUS2 POHN NYA2 OUS2 POHN
                4  |  GRG   | 6 11 18 21 6 21 LPGS MCM4 SVTL TRO1 XMIS MCM4 SVTL
                4  |  GRG   | TRO1
                4  |  JPL   | BADG BADG MAC1 TRO1
                4  |  NGS   | 11
                5  |  COD   | NYA2 NYA2
                5  |  EMR   | CHUR
                5  |  ESA   | MAC1 MAC1
                5  |  GFZ   | POHN MBAR
                5  |  GRG   | 4 13 4 13 TLSE SGOC TLSE
                5  |  MIT   | KOKV
                5  |  NGS   | 11
                6  |  COD   | JOG2 MAYG JOG2
                6  |  EMR   | MCM4 YELL KIRU MCM4 WHIT YELL
                6  |  ESA   | MAC1 YEL2 AREQ MAC1 SALU YEL2
                6  |  GFZ   | JOG2
                6  |  GRG   | 18 21 21 JOG2 SVTL JOG2 SVTL
                6  |  JPL   | ZECK BAKE MBAR ZECK

 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 orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                4  |  GRG   |   6
                4  |  JPL   |   6

 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 G06 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |

 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.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.
    
    Starting 17-May-2020 (GPS Week 2106, day 0, MJD 58986) all IGS products,
    are based on the updated reference frame (IGb14).
    For more information see IGSMAIL #7921.

 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 |     .3     .0     .2       7      3      3    -.21
       EMR  |   0 |   -2.3    7.5  -15.9     -16    -76    -18    -.12
       ESA  |   0 |    -.2   -1.7     .0      -9     -7     31    -.33
       GFZ  |   0 |     .3    -.3    -.2       4    -12      5    -.19
       GRG  |   0 |    5.1     .2   -4.5       1    -29    -26    -.04
       JPL  |   0 |    2.0    3.2   -3.7       5     10      0    -.07
       MIT  |   0 |    4.8    6.0    5.0      14      0    -21    -.03
       NGS  |   0 |    3.4    -.1   -4.8       0    -28      5    -.07
       SIO  |   0 |     .4    1.3    3.7      -4    -44     -8    -.12

       COD  |   1 |     .3    -.1     .1       3      0      0    -.33
       EMR  |   1 |     .2   -3.9  -16.9     -23    -73      4    -.05
       ESA  |   1 |    -.6   -1.7    -.1     -28     -5     45    -.41
       GFZ  |   1 |     .4    -.5     .2     -17    -16      6    -.30
       GRG  |   1 |    3.6   -4.7   -7.8       1    -74     10    -.02
       JPL  |   1 |    2.9   -2.3   -8.4       1      0      1    -.02
       MIT  |   1 |    5.6     .9    3.8      15      3    -16     .03
       NGS  |   1 |    3.8   -4.9    3.8     -46    -54      5    -.18
       SIO  |   1 |     .7    -.8    6.8       3    -73    -39    -.16

       COD  |   2 |     .3    -.1    -.0       5     -4      2    -.31
       EMR  |   2 |   -1.5    1.4  -24.1      -6    -81    -42     .07
       ESA  |   2 |    -.9    -.6    -.6     -25     -4     21    -.33
       GFZ  |   2 |     .1    -.4     .2       0     -2    -10    -.27
       GRG  |   2 |   -4.3     .7   -8.2       4    -86      9    -.09
       JPL  |   2 |    3.5   -5.6   -4.6       4      9    -13    -.01
       MIT  |   2 |     .2    2.1    3.4      25      0    -22     .07
       NGS  |   2 |    1.3   -1.9   -2.3       0    -12     -4    -.13
       SIO  |   2 |   -5.3    2.4   -1.1      -1     33     11    -.11

       COD  |   3 |     .2     .1     .2      11      5      2    -.34
       EMR  |   3 |   -7.7     .8  -17.4      -5    -75    -36     .06
       ESA  |   3 |    -.5    -.9   -1.0      -1     10     21    -.35
       GFZ  |   3 |     .3    -.1     .1      14     -4     -7    -.30
       GRG  |   3 |   -4.5    2.2   -9.1      12    -85     21    -.09
       JPL  |   3 |     .6   -3.5  -14.6       4     15     -8     .12
       MIT  |   3 |   -1.6    6.7    2.8      16     13    -14     .06
       NGS  |   3 |    4.6    -.7   -8.3      -9    -15      3     .04
       SIO  |   3 |   -8.0    4.3     .8      12     14     96    -.05

       COD  |   4 |     .3    -.0     .0      10      1     -7    -.37
       EMR  |   4 |   -5.1     .3  -16.7     -22    -26     -5    -.02
       ESA  |   4 |   -1.0    -.8    -.6      -4     -2     27    -.53
       GFZ  |   4 |     .6    -.4     .5       3     -2      4    -.28
       GRG  |   4 |   -1.0   -6.6  -21.3      15    -64     31    -.08
       JPL  |   4 |    1.2    -.2  -10.3       3     14     -4    -.16
       MIT  |   4 |     .5    6.6    3.9      23     16      2    -.06
       NGS  |   4 |    3.0     .0     .6     -11      7     -5    -.11
       SIO  |   4 |   -6.4    -.5    1.0     -30     30    -18    -.10

       COD  |   5 |     .3     .0     .2      15      5     -3    -.39
       EMR  |   5 |   -3.9    4.4  -16.1     -19    -17     13    -.16
       ESA  |   5 |    -.9    -.6    -.5      -4     -7      8    -.35
       GFZ  |   5 |     .4    -.3     .0       3     -6      2    -.23
       GRG  |   5 |    2.0    -.7  -15.0      11    -64     23    -.06
       JPL  |   5 |   -2.5    -.9   -3.6       3     16     -3    -.07
       MIT  |   5 |    2.7    3.3    5.4      10     24    -34    -.04
       NGS  |   5 |    6.5    -.3    -.1     -17    -35     10    -.03
       SIO  |   5 |   -1.3    3.1     .5      16     10     52    -.20

       COD  |   6 |     .4    -.1     .3       4     -3     -5    -.37
       EMR  |   6 |   -2.7   -1.0  -21.8       1    -23      9    -.01
       ESA  |   6 |    -.3   -1.4    -.6      -8    -13     19    -.29
       GFZ  |   6 |     .3    -.5    -.2       7     -6      4    -.19
       GRG  |   6 |    4.0    -.4   -8.9      12    -32     -6    -.05
       JPL  |   6 |    2.1    -.9   -5.1       0      0      0    -.22
       MIT  |   6 |    3.7    2.3    1.3       5      7    -26    -.03
       NGS  |   6 |   -1.5   -3.0  -17.8     -32     62     20     .24
       SIO  |   6 |    1.3    2.7   -8.5      -3    131     39    -.12


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:
        https://files.igs.org/pub/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:
        https://files.igs.org/pub/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.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        https://files.igs.org/pub/station/general/igs14.atx


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 1.2203.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2203.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 2.2203.[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 3.2203.[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 5.2203.0-6). 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 2203 summary.                       (Mar 27, 2022 - Apr 02, 2022)

Table 1.2203.a   GPS week: 2203   MJD: 59665.000-59671.000

         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  628|    0     0     5     9    14     0   .00    8    8 |    -454      75      6     81
        |    0     1     1    14     7    15   .02           |     377     588
emr   80|   -5     2    -6     4    21     1   .01   13   13 |  205460    -105     12    101
        |    1     2     0     8     9     5   .03           |     878     771
esa  150|    0     0    -1    -2     4     8   .00    8    8 |  -40178     -74     17    114
        |    0     0     1     6    16    15   .01           |  105213     497
gfz  232|    0     0     4     0    16   -10   .13   11   11 |     138     -96     12     75
        |    0     0     2    25    17     8   .01           |      99     455
grg  109|    2    -1    -4   -11    18    -1  -.10   11   10 |      98     -86      9    153
        |    0     1     3     6     9    22   .02           |      97     251
igr  n/a|    0     0     0    -4    15   -13   .02    5    5 |    3124    -622     12    100
        |    0     0     0     8    12    13   .02           |     677     893
jpl   80|    0    -1    -1    -3    10     2   .11    8    8 |     308    -324      8     74
        |    0     1     1     8    20    12   .02           |     801     897
mit  372|    1     0     1     0    15    -2  -.06    7    7 |    1177    -515     25   1610
        |    0     0     1     8    19    25   .01           |     954     904
ngs  189|    0     0     0    10     0    -6  -.06    9    9 |  -63344   -3052    872   1711
        |    0     0     3    19    17    14   .02           |   28399    1464
sio  424|    0     1     0   -28  -133    -3  -.03   11   10 |     ---     ---    ---    ---
        |    0     0     2    38    69    30   .01           |     ---     ---


Table 1.2203.b   GPS week : 2203   MJD: 59665.000-59671.000   

         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  |    3    3    3    3    3    3    3 |
   2  |    3    3    3    3    3    3    4 |
   3  |    3    3    3    3    3    3    3 |
   4  |    4    4    4    4    4    4    3 |
   5  |    3    3    3    3    3    3    3 |
   6  |    3    3    3    3   16    3    3 |
   7  |    4    3    4    4    4    4    4 |
   8  |    3    3    3    3    3    3    3 |
   9  |    3    3    3    3    3    4    3 |
  10  |    3    3    3    3    3    3    3 |
  11  |    7    6    8    6   10    6    7 |
  12  |    3    3    3    3    3    3    3 |
  13  |    3    3    3    3    3    3    3 |
  14  |    3    4    3    3    3    3    3 |
  15  |    4    4    4    4    4    4    4 |
  16  |    3    3    3    3    4    4    4 |
  17  |    3    3    3    3    4    3    3 |
  18  |    5    5    5    5    5    5    5 |
  19  |    3    4    3    4    4    3    3 |
  20  |    3    3    3    3    3    3    3 |
  21  |    3    3    3    3    4    4    3 |
  22  |    3    4    3    3    3    3    3 |
  23  |    3    3    3    3    4    4    3 |
  24  |    4    4    4    4    5    4    4 |
  25  |    3    3    3    3    3    3    3 |
  26  |    3    3    3    3    3    3    3 |
  27  |    3    3    3    3    3    3    3 |
  28  |    4    4    4    4    4    3    3 |
  29  |    3    3    4    3    4    4    4 |
  30  |    4    3    4    4    4    4    3 |
  31  |    3    3    3    3    4    3    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
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2203.0   GPS week: 2203   Day: 0   MJD: 59665.000                            

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  629|   -1    -1     3     5    13     0   .01    8    8 |    -565     282      6     83
emr   80|   -4     4    -5    15    26    -1   .02   13   13 |  204167    -224     13    113
esa  150|    0     0     1    -8     3    25   .01    7    7 |    -623      81      8    112
gfz  221|    0     0     7   -27    13    -4   .15   12   10 |      74      91     12     69
grg  107|    2    -3     0    -1    24   -11  -.10   11   10 |      95    -203      9    146
igr  n/a|    0     0     1   -10    10     8   .03    4    4 |    2981    -212     11     93
jpl   80|    0     0    -1    11    39    18   .11    8    8 |    -642    -197      7     80
mit  372|    0     0     0     6   -25   -30  -.06    7    6 |    1528     -45     26   1268
ngs  190|    1     0    -4    17   -11    15  -.07    8    8 |  -64944   -2913    659   1452
sio  411|    0     1    -3   -56   -78   -25  -.05   11   11 |     ---     ---    ---    ---

Table 2.2203.1   GPS week: 2203   Day: 1   MJD: 59666.000                            

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  618|    0     0     3    -6    19     3  -.00    8    8 |    -765     779      6     82
emr   80|   -4    -1    -6     8    25     1   .02   13   13 |  204296    1072     13     67
esa  150|   -1     0    -1    10    11    10   .00    7    7 |    -828     -46      8     81
gfz  239|    0     0     6    -1     0   -12   .13   10   11 |     157    -338     12     68
grg  112|    2    -2    -3    -6    21   -15  -.11   10    9 |       5    -120      9    130
igr  n/a|    0     0     0     9    38   -32   .03    5    4 |    3074     445     12     94
jpl   80|    0     0    -1     1    24     4   .11    8    8 |    -582    1136      8     64
mit  372|    0     1     0    -9    14    28  -.06    6    6 |     879     596     22   1521
ngs  192|    0     0     4    43    -2   -28  -.06   10   10 |  -68496   -3427    658   1383
sio  429|    1     2    -1   -60  -182   -27  -.02   11   10 |     ---     ---    ---    ---

Table 2.2203.2   GPS week: 2203   Day: 2   MJD: 59667.000                            

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  626|    0     0     5     5    18   -18   .03    8    8 |     380   -1154      6     70
emr   80|   -5     0    -7     8    24    -2  -.03   14   14 |  205483     509     12     90
esa  150|   -1     0     0    -3    17    -4   .02    8    8 | -278777     585     68    235
gfz  240|    0     0     3    19    31    -3   .11   13   13 |     112    -323     14     84
grg  112|    2    -2    -4    -8    11   -34  -.06   11   10 |     -64      88      9    153
igr  n/a|    0     0     0     5    22    -9   .04    5    5 |    3610     204     13     97
jpl   80|    0    -1    -3    -8    17    11   .11    9    9 |     706     516      9     60
mit  372|    1     0     0    11    12    32  -.09    7    6 |    1596     301     25   1889
ngs  192|    0     0     2   -12   -24    -1  -.05    9    9 |  -71632   -3755    718   1346
sio  417|    0     1     0   -14  -127   -11  -.04   10    9 |     ---     ---    ---    ---

Table 2.2203.3   GPS week: 2203   Day: 3   MJD: 59668.000                            

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  629|    0     0     6    33    23     7   .01    8    7 |    -543     163      7     86
emr   80|   -6     1    -7    -7    31    -3   .03   14   14 |  206227     -10     12     95
esa  150|    0     0    -1    -8    24     5  -.02    8    8 |    -146    -636     10     89
gfz  236|    0     0     4   -23    17   -23   .13   12   12 |      99     623     13     69
grg  111|    2    -2    -2   -13     7    -2  -.08   10    9 |     217     182     10    153
igr  n/a|    0     0     0   -10    13   -25   .03    5    5 |    4048    -552     13    105
jpl   80|    0    -1    -3    -8    10   -18   .13    8    8 |    1530    -545      9     73
mit  372|    0     1     0     3    25    -1  -.06    7    6 |    2441    -570     24   1546
ngs  191|    1     0     0     9    -3    -5  -.10   10    9 |  -75498   -3603    889   1994
sio  427|    1     1     0   -17  -196    58  -.03   11   10 |     ---     ---    ---    ---

Table 2.2203.4   GPS week: 2203   Day: 4   MJD: 59669.000                            

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  635|    0    -1     6    26    14   -14  -.02    9    9 |    -625     154      7     82
emr   80|   -4     1    -5     1    19     0   .05   14   14 |  205838     -19     12     94
esa  150|    0     0    -2    -1     6    22  -.02    8    8 |   -1011     447     10     92
gfz  237|    1     0     2    45    41     0   .14   11   11 |     346    -821     13     70
grg  111|    2     0    -9   -12    22    13  -.11   11   10 |     164    -527     12    171
igr  n/a|    0     0     1    -1     9   -15   .01    5    5 |    3261    -640     13    111
jpl   80|    0    -1    -2     0    -1     0   .10    8    8 |     801    -650      9     88
mit  372|    0     1     1    -1    22     5  -.07    7    7 |    1334    -499     29   1451
ngs  190|    1     1     1   -16    -1   -19  -.05   10   10 |  -79125   -4089    765   1797
sio  434|    0     0     3   -78  -191   -23  -.04   14   12 |     ---     ---    ---    ---

Table 2.2203.5   GPS week: 2203   Day: 5   MJD: 59670.000                            

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  631|    0    -1     6     4    13    29  -.01    9    8 |    -554     123      7     78
emr   80|   -5     4    -5     9    21     2  -.02   13   13 |  206253    -872     11    129
esa  150|    0     0    -2     2    -4   -17   .01    8    7 |     -27    -714      9    104
gfz  239|    0     0     0     1    20   -10   .13   11   11 |     137     -46     14     79
grg  108|    2    -2    -8   -15    34    37  -.11   13   11 |     152    -183     10    150
igr  n/a|   -1     0     0   -14    17    -5  -.00    5    5 |    3047   -1718     13     99
jpl   80|   -1    -1     0   -11     3    -6   .08    8    8 |     510   -1103      9     82
mit  372|    1     0     3   -12    24   -22  -.06    8    8 |    1145   -1632     24   1879
ngs  188|    1     0     0    12    10    -5  -.04    8    8 |  -83216   -3745   1060   1798
sio  423|    0     0     1     0  -148    -1  -.04   11   10 |     ---     ---    ---    ---

Table 2.2203.6   GPS week: 2203   Day: 6   MJD: 59671.000                            

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  629|    0    -1     6     0    -1    -3  -.01    8    7 |    -509     183      6     87
emr   80|   -6     4    -7    -4     2    13   .03   13   13 |  205957   -1196     13    119
esa  150|    0     0     0    -5   -26    17   .00    8    8 |     166    -237      8     91
gfz  213|    0     0     4    -8    -8   -16   .11    9    9 |      41     141     12     87
grg  103|    2     0    -1   -23     9     2  -.12   11   10 |     120     157     10    172
igr  n/a|    0     1     0    -7    -4   -12   .00    5    5 |    1853   -1883     12    105
jpl   80|    0    -2     0    -6   -23     5   .14    9    9 |    -163   -1428      7     75
mit  372|    1     0     1     0    32   -24  -.06    7    7 |    -681   -1756     26   1720
ngs  185|    0     0    -6    15    29    -1  -.07    9    9 |    -497     165   1359   2213
sio  433|    1     0     0    29    -7     4  -.02    9    9 |     ---     ---    ---    ---

       
       
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 3.2203.0   GPS week: 2203   Day: 0   MJD: 59665.000                            

        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  |    9   10    5   11    8    3    8    5    7   12    2 |    27   26   25   25   28   25   28   23   22   23    24
   2  |    7   12    9   14   11    3    8    6    6   10    3 |    29   33   25   33   30   28   29   27   31   27    28
   3  |    9   10    9   10    7    4    6    8   10   15    3 |    23   31   28   25   21   24   27   20   25   20    23
   4  |   10   17    7   11   12    5    9    9    8    9    3 |    60   52   54   63   55   54   54   56   59   55    56
   5  |    5    8    7   10    8    5    8    5    4   12    2 |    34   36   32   37   34   34   35   32   35   34    33
   6  |    5    8    6   10   10    4    6    6    8   10    2 |   906  638  905  904  897  905  905  909  907  910   907
   7  |   12   18    5   16   14    3    8    7   10   11    3 |    27   32   27   31   27   28   28   29   31   30    27
   8  |    9   16    8    9   11    4    8    7    8   11    3 |    28   31   30   29   30   29   29   26   30   27    27
   9  |    8    9    8   12   11    4    8    7    6   11    3 |    30   33   32   31   30   31   33   29   30   31    30
  10  |    6    9    7   11    6    4    8    5    6   12    2 |    28   32   29   32   28   29   32   28   28   30    29
 X11  |    8   16  ---  ---   23   10   10    9   21  ---    6 |    86   88  ---  ---   93   84   87   86   66  ---    85
  12  |    7   10    6    9    8    4    6    4    8    8    2 |    45   49   46   50   44   46   47   46   45   45    46
  13  |    5    8    6   12   12    4    8    7    7   13    3 |    27   31   28   31   29   29   31   24   25   25    26
  14  |    6    9    6   11    7    4    7    8   10   12    3 |    34   39   35   36   40   36   35   39   39   36    37
  15  |    6   15    9   11   12    5    8    8    9   16    3 |    38   47   39   38   38   40   42   33   38   33    37
  16  |    5   20    7    7    9    3    8    6    8   10    3 |    14   18   16   18   16   15   17   15   18   15    14
  17  |    5   15    5    8   10    3    6    8    7    9    2 |    31   38   29   32   32   32   34   27   34   33    31
  18  |   11   21   11   15   23    5   10    8   12   14    4 |    86   86   82   87   91   86   88   85   90   88    86
  19  |   10   16    4    8   10    5    6    8    8   11    3 |    37   43   41   45   43   41   40   39   38   37    39
  20  |    5   10    6    9   12    4    8    6   10   13    3 |    24   28   27   25   24   26   27   24   29   25    25
  21  |    9   13    9   13   10    2    7    9    7    9    3 |    20   23   20   21   23   19   22   25   20   24    21
  22  |    9   12    6   16    7    4    8    6    7    9    3 |    25   25   22   24   24   22   21   22   24   24    22
  23  |    6   11    6   13   11    4   11    6    8   13    3 |    37   37   39   41   43   38   36   39   39   44    38
  24  |    8   15    7   14   12    4    8    7   12   14    3 |    93   77   89   95   93   90   89   89   91   82    89
  25  |    6    7    6   10    8    3    5    4    8    9    2 |    19   22   22   29   19   21   25   19   18   23    20
  26  |    4    7    8    8    8    4    6    5    6   10    2 |    24   25   24   27   22   24   26   23   23   22    23
  27  |    8   10    7    9   12    5    8    6    6   13    3 |    27   27   30   27   28   28   29   25   28   24    26
 X28  |    8   10    6   12    8    4    8    8   16  ---    3 |    20   25   22   20   18   21   25   21   25  ---    20
  29  |    8   15    5   11   16    5    6    7    9    9    3 |    42   40   41   41   43   42   42   41   41   43    41
  30  |    9   18    7   21   10    3   10    5   10   10    3 |    27   34   30   27   27   28   30   27   30   31    27
  31  |    8   12    8   15   12    4    8    8    7    6    3 |    28   28   26   28   32   27   28   25   28   27    26
  32  |   12   11    7    7    8    4    7    7    5    8    3 |    28   28   28   28   28   27   26   24   24   26    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7   12   11    4    8    7    8   11      |T   62   56   62   63   63   62   63   61   62   63    62
 WRMS |    8   13    7   10   10    4    8    6    8   11      |NE  85   73   85   87   87   86   87   84   85   86    85
 MEDI |    8   11    7   11   10    4    8    7    8   11      |MD  28   32   29   31   30   29   30   27   30   30    27

Table 3.2203.1   GPS week: 2203   Day: 1   MJD: 59666.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8   11    9    9    9    3    7    5    8   12    3 |    20   22   22   22   22   21   23   17   21   19    19
   2  |    6   12    8   10    8    4    9    5    7    9    3 |    26   29   21   25   27   23   25   24   24   29    24
   3  |    6   10    8   10   10    5    7    5    7   15    3 |    18   27   25   22   19   22   25   17   22   19    20
   4  |    9   17   10   17   13    5    9    7   15    9    4 |    44   43   38   52   45   40   40   39   49   40    42
   5  |    5    9    6   10    7    4    8    7    5    9    2 |    29   30   26   33   27   29   30   28   28   29    28
   6  |    8    9    8    8    9    4    7    7   10    8    3 |   702  550  705  703  703  705  703  707  704  705   705
   7  |   10   12    8    9   12    3    7    7    9   12    3 |    24   27   23   26   25   23   25   27   26   29    24
   8  |    8   15    8   10    6    3    9    7    5    8    3 |    22   26   25   23   24   23   24   22   23   26    22
   9  |    7   10    9    7    7    4    7    8   11    7    3 |    25   26   27   24   23   24   25   23   25   24    23
  10  |    6   10    7    9    5    6    7    5    7   11    2 |    22   28   24   22   20   23   27   21   22   26    22
 X11  |   11   16  ---  ---   18   10   10    7   17  ---    5 |    51   54  ---  ---   54   53   53   52   40  ---    51
  12  |    6   14    5    7    6    4    7    3   10    8    2 |    27   32   24   30   26   26   29   28   28   31    27
  13  |    6   11    7   11   12    5    9    6   13   13    3 |    19   25   22   20   21   21   25   19   20   21    19
 X14  |    8    9    6    9    8    6  ---    8   17  ---    4 |    20   20   19   22   24   22  ---   24   23  ---    21
  15  |    6   17    9    9    9    6    9    9   13   13    3 |    27   35   28   27   27   28   29   24   26   27    26
  16  |    6   21    4    7   10    4    8    7    8    9    3 |    14   19   17   18   14   16   16   15   19   19    14
  17  |    6   12    6    9    8    4    6    8   13   17    3 |    24   31   24   29   28   26   29   23   29   29    25
  18  |   11   21   12   10   17    5   11    6   14   12    4 |    50   55   50   52   53   50   49   50   54   51    50
  19  |    7   14    6   10    8    4    7    6   15   18    3 |    29   31   30   33   32   29   30   30   30   30    29
  20  |    6   10    6    8    9    4    8    8    6   12    2 |    20   22   20   21   19   19   21   19   19   20    19
  21  |    8   14    6   10    8    3    7    9    8    9    3 |    17   22   17   18   19   17   20   22   21   21    18
  22  |    8   12    6   21    8    5    9    6    8   11    3 |    23   22   21   26   22   20   22   21   22   22    20
  23  |    6   12    7    9    8    5   11    5    7   11    3 |    26   27   29   31   27   25   25   29   25   35    27
  24E |   14   12    6   14   13    6   10    7   11   12    3 |    63   64   61   60   62   63   64   60   65   62    61
  25  |    6    9    8    7    7    4    6    5   11   11    2 |    18   24   21   21   18   18   24   18   19   23    19
  26  |    5    9    8    7    9    4    6    5   11   11    2 |    20   24   22   22   20   20   23   19   22   22    20
  27  |    8   12    7    8    9    3    8    5    7   10    3 |    24   24   26   22   23   23   25   21   24   24    22
 X28  |    7   11   11   13    8    6    8   10   15  ---    4 |    18   23   20   21   16   19   23   20   22  ---    18
  29  |   11   17    6    7   13    6    7    5    9    8    3 |    31   29   28   29   29   29   27   29   31   32    28
  30  |    9   13    6   11    8    3   10    6    8   13    3 |    23   27   26   22   24   24   26   24   23   28    23
  31  |    8   12    7   10   13    8    9    5   10    6    3 |    20   20   16   21   22   19   21   17   21   19    17
  32  |   10   10    7   10    8    4    7    6    8   13    3 |    21   21   23   23   21   22   23   20   22   24    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7   10   10    5    8    6   10   11      |T   47   45   47   49   48   47   50   47   48   51    46
 WRMS |    8   13    7   11    9    4    8    6   10   10      |NE  64   59   65   66   65   64   66   64   64   67    64
 MEDI |    7   12    7    9    8    4    8    6    9   11      |MD  23   27   24   23   24   23   25   23   23   26    22

Table 3.2203.2   GPS week: 2203   Day: 2   MJD: 59667.000                            

        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   13    8   11   10    4   11    5   10    8    3 |    28   28   28   28   31   27   28   24   26   30    27
   2  |    5   13    7   16    9    4    9    5    7    7    3 |    26   30   22   25   26   23   26   23   24   26    23
   3  |    7   12    8   11    8    4    8    5    8   11    3 |    22   29   26   23   21   23   27   19   22   24    22
   4  |   10   18    9   16   12    5    8    8   10    9    3 |    51   48   46   56   51   47   47   46   54   49    48
   5  |    6    9   10   12    7    6    8    7    5   12    3 |    35   33   34   34   34   34   35   34   33   34    34
   6  |    7   11    8   12   10    6    8    8    8    9    3 |   992  608  992  993  978  991  990  994  992  998   993
   7  |    9   15    8   16   13    4    9    7   12   12    3 |    25   26   22   28   27   25   24   25   26   29    24
   8  |    8   16    7   13    9    4    9    8   10    7    3 |    29   28   28   26   29   25   25   23   26   28    25
   9  |    9   11    8   11    9    5    8    9    8   10    3 |    33   34   34   32   34   30   33   31   30   32    31
  10  |    5   12    8    8    5    4    9    7    7   10    2 |    22   26   25   23   22   22   28   19   21   24    22
 X11  |   11   19  ---  ---   19   10   14   10   27  ---    7 |    36   38  ---  ---   44   38   39   40   40  ---    38
  12  |    7   15    5    8    9    5    6    4    8    5    2 |    34   36   32   34   33   31   35   32   32   34    33
  13  |    9   10    7   14   12    6    9    6    6   11    3 |    27   29   28   30   27   28   30   24   25   27    26
 X14  |    6    9    7    9   10    4    9    8    7  ---    3 |    26   32   31   30   34   30   31   31   31  ---    30
  15  |    8   15    8   12   11    6   13    8    9   13    3 |    29   40   32   32   30   32   38   27   29   29    30
  16  |    7   21    5    9    9    4    7    8    8    8    3 |    22   25   22   22   23   19   20   19   21   26    20
  17  |    6   14    6   11    8    5    7    6    9   10    3 |    23   28   21   25   24   24   27   22   25   25    23
  18  |   11   22   16   18   17    7   12    8   15   11    5 |    44   44   41   50   49   42   46   43   49   47    44
  19  |    6   17    4   16    9    5    7    7    9    9    3 |    22   23   19   27   24   20   21   20   22   23    20
  20  |    5   13    9   11   10    5    6    5    7   13    3 |    22   22   23   25   23   21   22   21   21   22    21
  21  |    8   15    6   13    8    5    9    8    7    7    3 |    25   25   23   24   28   23   26   26   24   30    25
  22  |    6   14    6   14   10    5    9    5    6   10    3 |    24   23   24   24   28   23   23   24   28   26    24
  23  |    6   13    8    9    8    5   12    6    6   16    3 |    18   18   18   19   21   15   15   18   14   24    16
  24E |   11   13   10   24   14    4    9    7    8   15    4 |    34   32   31   29   30   28   29   29   28   33    29
  25  |    9   10    7    6   11    4    8    5   10    8    3 |    26   27   25   23   26   23   26   21   20   28    23
  26  |    6    8    8   11    9    4    6    6    7    7    2 |    29   30   28   26   29   26   30   25   28   28    27
  27  |    9   12    7   12   12    3    9    7    9   10    3 |    29   26   28   25   31   26   26   24   26   29    26
 X28  |    6   12    7   15   10    6    8   10    9  ---    3 |    32   33   29   30   30   29   33   27   28  ---    29
  29  |    9   18    6   10   15    4    7    6   13   10    3 |    25   21   22   22   23   22   23   23   24   30    22
  30  |    9   13    7   17   11    4   11    7    8   15    3 |    23   28   26   26   27   26   27   24   24   29    24
  31  |    7   14    7   10   13    6    8    5    9    6    3 |    22   24   21   25   28   22   23   20   25   22    21
  32  |    6   12    7    7   10    5    8    5    6   11    2 |    22   23   25   25   25   24   26   21   23   25    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    8   13   11    5    9    7    9   10      |T   58   47   58   59   59   56   58   56   57   62    56
 WRMS |    8   14    8   13   10    5    9    6    9    9      |NE  80   60   82   84   81   79   81   79   80   85    80
 MEDI |    7   13    7   12   10    5    8    7    8   10      |MD  26   28   26   26   28   25   27   24   26   28    25

Table 3.2203.3   GPS week: 2203   Day: 3   MJD: 59668.000                            

        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  |    6    9    8   11    8    4    8    6    6    8    2 |    30   33   32   30   31   30   31   28   27   32    29
   2  |    8   15    8    9    9    4    8    5    8    6    3 |    34   38   31   32   35   32   34   31   33   32    32
   3  |    6   11   10    8    7    5    7    6    8   11    3 |    30   37   33   33   30   31   35   29   31   34    31
   4  |    9   19   11   16   11    5    8    8   10    8    3 |    55   50   48   60   51   50   47   50   54   51    50
   5  |    6   12    8   11    6    6    9    7   10   11    3 |    32   34   33   34   31   32   32   33   35   36    32
   6  |   12    9    9   10   10    5    8    8   10    8    3 |   457  544  457  460  447  456  460  454  457  459   457
   7  |    9   16    7   19   11    4    8    6   12    9    3 |    27   30   25   33   27   27   25   27   30   33    26
   8  |    8   13    8    8    9    3    9    7    9   10    3 |    33   34   33   32   33   30   31   29   28   34    30
   9  |    8   11    8   11    9    5    7    8   11   10    3 |    32   35   34   33   31   32   33   31   32   36    32
  10  |    6    9    7   10    4    5    8    7    7   16    3 |    30   34   32   31   31   31   34   28   32   35    31
 X11  |   13   18  ---  ---   19   13    9    7   15  ---    6 |    37   42  ---  ---   48   40   42   40   38  ---    41
  12  |    7   13    7    7    8    4    5    4    8   13    2 |    45   49   45   44   44   45   47   44   44   49    45
  13  |    7   12    5   12   11    4    9    6   12   12    3 |    26   30   27   27   25   27   31   25   28   29    26
  14  |    7    8    7   10    9    6    6    8    8    7    2 |    35   35   34   32   36   33   34   34   33   41    34
  15  |    8   15    8    9   10    6    9    7   13   13    3 |    36   47   39   38   34   38   42   36   40   35    37
  16  |    7   22    6    9    9    4    8    8    9    8    3 |    27   28   28   29   28   27   26   26   28   30    26
  17  |    6   12    6   12    9    4    8    6   12   12    3 |    33   35   30   32   32   31   35   32   31   33    31
  18  |   12   24   15   14   17    6    9    8   13   12    4 |    47   46   42   44   53   44   46   47   49   51    45
  19  |    8   14    6   14   10    5    9    9   11   11    3 |    31   32   29   32   30   30   30   30   26   33    29
  20  |    7   14    8   10   11    6    6    6   10    9    3 |    30   33   31   31   30   30   30   30   32   31    30
  21  |    8   13    7   11    8    4    8    8    9    9    3 |    32   34   30   31   32   29   32   32   28   36    31
  22  |    5   11    7   15    9    5    8    4    9   10    3 |    32   33   32   33   33   30   32   31   32   34    31
  23  |    6   16    7   11    9    5   10    7    7   13    3 |    26   31   27   29   29   25   24   25   28   30    26
  24E |    9   14    8   19   11    4    8    6    7   13    3 |    52   40   50   49   46   47   48   49   50   51    49
  25  |    5   10    8    6    9    4    5    5    9   11    2 |    29   33   30   30   28   29   32   28   29   34    29
  26  |    7   10    9    8    7    3    6    6    7   10    2 |    34   32   33   33   32   32   32   30   31   32    31
  27  |    9   12    7    7   12    2   10    6    9   11    3 |    34   33   32   31   34   31   34   30   29   34    31
 X28  |    8   13    7   19    8    7    8    9    8  ---    3 |    30   31   25   33   24   28   30   26   28  ---    27
  29  |    7   18    5    8   15    4    7    6   10    7    3 |    30   31   29   29   30   28   29   30   32   34    29
  30  |    7   13    8   19    9    4   12    6    6   12    3 |    27   29   27   28   26   27   29   27   29   31    26
  31  |    6   11    8   11   15    7    8    4    9   13    3 |    31   34   30   34   33   30   31   29   30   31    30
  32  |    7   11    9    9    9    5    7    5    8   15    3 |    35   37   36   37   35   34   35   32   34   35    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    8   12   10    5    8    7   10   11      |T   46   51   46   47   46   45   47   45   46   49    45
 WRMS |    7   14    8   12    9    5    8    6    9   10      |NE  57   64   57   58   57   56   58   55   56   60    56
 MEDI |    7   13    8   11    9    5    8    6    9   11      |MD  32   34   32   32   32   31   32   30   31   34    31

Table 3.2203.4   GPS week: 2203   Day: 4   MJD: 59669.000                            

        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   15    9    9    8    4    8    6   10   11    3 |    27   28   29   27   29   27   30   25   28   33    27
   2  |    7   13   10    9    9    4    9    7    6   13    3 |    26   31   23   31   30   25   27   25   24   33    26
   3  |    6   13    8    7   10    4    8    6   12   18    3 |    19   29   25   26   22   22   28   19   24   27    22
   4  |    8   18    9   11   13    5    7    8   14   10    3 |    49   48   43   50   44   47   45   47   51   49    46
   5  |    6   12   10   10    9    5    8    6    8   11    3 |    30   30   29   35   30   30   32   30   30   33    30
  X6  |   44  ---   23   40  255   25   77   27   28   50   15 |  9999  --- 9999 9999 9999 9999 9999 9999 9999 9999  9999
   7  |   15   13    6    8   14    5   10    7   18   15    4 |    26   27   24   28   26   24   27   25   34   31    25
   8  |   10   13    9    9    9    4    8    8   10    7    3 |    25   25   26   24   25   24   24   22   22   29    23
   9  |   10   11   11    8    9    4    7    7   11   11    3 |    31   31   31   27   31   28   32   26   31   37    29
  10  |    6    9    7   13    6    5    8    8    6   16    3 |    22   27   25   24   23   23   27   21   22   29    23
 X11  |   14   19  ---  ---   20   13   10   12   50  ---   10 |    39   37  ---  ---   41   33   38   38   64  ---    37
  12  |    8   14    6    8   10    5    5    4    5   16    3 |    34   39   35   36   35   33   37   34   38   39    35
  13  |    5    9    6   10    9    4    8    7    7    8    2 |    21   26   21   26   23   23   28   22   22   26    23
  14  |    9   10    5    9    9    5    9    6   10   15    3 |    21   26   25   26   28   23   23   24   24   34    24
  15  |    7   20    6   10    9    6   12    8   11   13    3 |    26   38   29   32   31   30   34   28   28   30    29
  16  |    7   19    6    7   12    7    7   10   11   10    3 |    20   22   21   23   19   19   20   19   21   27    19
  17  |    8    9    6   10   10    4    9    6   11   20    3 |    22   27   24   26   27   24   26   23   28   32    24
  18  |   12   19   14   12   19    5   11   10   12   13    4 |    41   42   38   44   42   41   44   43   43   49    41
  19  |    8   14    8   13    9    4   10    9    7   18    3 |    23   27   28   28   26   23   23   23   28   28    24
  20  |    8   12   10    8   12    4    6    5    8   12    3 |    20   21   21   26   21   22   21   21   22   27    20
  21  |    8   14    6   17    8    7    8   10   10    9    3 |    22   27   23   22   26   23   25   26   22   29    23
  22  |    7   10    4   10    8    4    8    5    6   11    2 |    23   22   22   24   22   22   23   23   25   25    22
  23  |    6   14    6   11    9    5   12    7    9   20    3 |    19   19   21   21   23   19   20   22   20   27    19
  24E |   10   19    9   25   15    5    8    7    6   23    4 |    35   39   32   36   33   31   33   31   30   36    31
  25  |    6    9    8    9   10    5    4    5    6   11    2 |    23   28   26   28   26   24   28   24   23   33    25
  26  |    6    7    7    7   11    3    7    9    8    9    2 |    27   28   25   29   25   25   29   26   27   32    26
  27  |   10   12    7    8   10    3    8    8   11    9    3 |    27   26   29   28   27   26   25   23   28   29    25
 X28  |    8   11    6   11    9    4   11    9   11  ---    3 |    25   28   27   28   27   27   28   23   29  ---    25
  29  |   11   18    6    8   17    4    7    5   13    7    3 |    24   21   22   24   25   21   21   20   25   29    21
  30  |   15   15    8   11   11    6   10    6   16   18    4 |    29   30   30   30   30   28   30   27   35   36    28
  31  |    7   12    9   11   17    7    8    4   10   13    3 |    19   21   19   21   21   19   21   17   23   25    18
  32  |    9    9    7   10    8    4    7    5    6   16    3 |    23   23   24   25   21   21   23   20   22   25    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   14    8   11   11    5    8    7   10   14      |T   26   28   26   28   27   26   28   25   28   31    26
 WRMS |    9   14    8   11   10    5    8    7   10   12      |NE  26   28   26   27   28   25   27   25   28   30    26
 MEDI |    8   13    7   10   10    5    8    7   10   13      |MD  25   27   25   27   26   24   27   24   27   30    25

Table 3.2203.5   GPS week: 2203   Day: 5   MJD: 59670.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8   11    6    8    9    4    8    7    7   11    3 |    33   35   33   30   33   32   34   32   30   37    32
   2  |    8   11    9    9   11    5    9    7    7    9    3 |    43   48   41   47   43   43   44   44   47   46    44
   3M |    7   12    8    8    9    4    8    6    5    4    2 |    33   44   39   37   36   36   41   35   33   40    37
   4M |   13   18    8   12   13    4    9   14   12   11    4 |    43   43   41   37   39   40   42   50   44   48    42
   5M |    6    8    8    8   10    7    8   10    6   14    3 |    29   32   29   33   26   29   31   31   31   32    30
   6  |    9    9    9   14   10    9    8    7    8   12    3 |   617  982  617  617  636  616  616  617  621  618   617
   7E |   12   14    8   10   17    5    9   11    6    9    3 |    36   38   37   39   40   36   34   41   38   36    36
   8  |   10   13    7   12   12    4    8    7    7    9    3 |    34   39   39   36   37   37   37   36   34   39    36
   9M |   12   13    8    9   31    6    7    8    7   11    4 |    34   34   31   33   36   33   33   31   32   33    31
  10  |    7   10    8    9    7    4    7   10    6   13    3 |    36   41   40   40   37   38   42   36   38   41    38
 X11  |   13   16  ---  ---   17   11   12    9   12  ---    5 |    67   70  ---  ---   68   65   68   70   73  ---    66
  12  |    7   16    7    7   11    6    7    7    9    7    3 |    40   44   42   41   41   40   42   43   42   40    41
  13  |    5   10    7   13    9    6    7    9    9   12    3 |    30   35   33   33   29   32   36   31   31   35    31
  14M |    6    9    7    8   12    6    7    8    5    6    2 |    28   31   30   32   30   28   29   28   26   33    28
  15  |    6   13    7    6   11    7   10   10   12   14    3 |    42   45   46   47   43   43   45   44   43   43    43
  16M |    7   19    6   11   16    5    8   10    7    9    3 |    24   26   27   26   26   25   26   26   30   29    25
  17  |    6   11    7   10    8    3    7    8    6   13    3 |    40   49   44   45   42   43   46   42   42   46    43
  18  |   12   20   15   15   20    6   11   10   11   12    4 |    63   72   66   70   64   65   68   66   67   66    66
  19  |    8   12    6   13    8    4    8    9    7   12    3 |    47   53   48   54   46   49   49   48   47   50    48
  20M |    5   10    7    7   10    6    6    7    4   16    3 |    36   39   37   39   35   36   36   36   35   36    36
  21  |   10   12    7   14   10    4   11   10    8    7    3 |    32   33   31   28   35   31   33   36   31   35    31
  22  |    6   10    4    7    8    5    8    6    8    6    2 |    31   35   32   34   31   30   34   33   33   37    32
  23  |    8   12    8   12   10    6   11    8    7   16    3 |    44   46   48   50   46   44   44   45   45   50    45
  24E |    9   14   10   20    9    6    9    9   10   14    4 |    50   43   51   52   50   49   51   51   51   52    50
  25M |    7   10    7    7   13    3    7    5    8    9    2 |    28   34   33   28   29   30   32   29   29   30    29
  26M |    7    9    7    9   12    6    6    6    7   11    2 |    31   33   32   32   30   31   33   31   33   34    31
  27  |    9    9    7   10   11    3    7    9    7   11    3 |    34   37   38   36   34   36   38   35   34   40    35
 X28M |    7   11    6   10    9    5    8    9   10  ---    3 |    25   29   26   29   22   27   29   24   29  ---    26
  29  |   11   18    5    9   15    5    7    5   13   11    3 |    43   45   44   47   45   43   45   43   45   47    44
  30M |   13   13   11   10   18    5   10   12    8   14    4 |    56   54   52   56   46   50   49   53   52   50    51
  31M |    8   11    8    9   12    7    7    6    9    7    3 |    38   43   39   39   34   38   41   37   39   42    38
  32  |    8   11    6   15    7    5    7    7    7   10    3 |    39   42   43   44   38   39   42   40   40   44    40
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    8   11   13    5    8    8    8   11      |T   56   71   57   58   57   56   58   57   57   60    56
 WRMS |    8   13    7   11   11    5    8    8    8   10      |NE  73   97   75   76   74   73   75   74   74   77    74
 MEDI |    8   11    7   10   11    5    8    8    7   11      |MD  36   41   39   39   37   37   41   36   38   40    37

Table 3.2203.6   GPS week: 2203   Day: 6   MJD: 59671.000                            

        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   13    7    7    8    4    7    6    7    7    2 |    26   29   27   24   27   26   28   24   26   25    25
   2  |    8   15    8   12   12    3   10    7    7    9    3 |    32   37   29   32   33   31   35   32   33   33    31
   3  |    5   10    7    9    7    4    9    8    6    7    2 |    20   27   24   20   21   22   28   19   23   20    21
   4  |    7   17    8    7   11    6    8    7    7    9    3 |    63   55   55   63   58   57   56   60   63   58    58
   5  |    5    8   10    9    7    4   11    8    6    8    3 |    27   27   24   29   25   26   27   28   25   26    26
   6  |    8   11    8    6    9    4   10    7    9    9    3 |   781  612  781  780  767  781  781  781  783  783   782
   7E |   12   15    8   10   16    5   11    8   11    8    4 |    29   25   26   30   28   26   25   26   28   30    25
   8  |   10   13    7   12    9    6   10    7    8    8    3 |    24   29   26   28   26   27   28   23   23   26    25
   9  |    9    9    8    7   10    4    7    6    9    6    2 |    26   28   29   26   27   27   29   25   28   28    26
  10  |    5   15    6    6    5    4    9    8    6    9    2 |    28   34   28   28   28   28   32   26   27   27    27
 X11  |   13   19  ---  ---   15   16   11    8  ---  ---    6 |    80   79  ---  ---   84   84   83   84  ---  ---    81
  12  |    6   12    6    6    9    5    6    5    8    9    2 |    51   55   53   54   53   51   53   52   49   51    52
  13  |    8   10    6   11   10    5    9    6   11   12    3 |    21   27   21   27   22   23   28   23   23   27    22
  14  |    7   10    6    4    8    5    8    6   10    7    2 |    27   31   29   30   33   28   29   33   31   34    30
  15  |   10   14   11    8   10    8   10    9    9   11    3 |    37   45   40   40   37   39   42   34   37   35    37
  16  |    8   19    7    7   13    7    8    8   10    5    3 |    24   28   26   27   22   25   24   25   24   27    24
  17  |    4   12    6   10   10    4    6    5    9    9    2 |    32   39   31   30   32   32   36   32   35   36    32
  18  |   12   20   16   10   23    6   11   12    8    7    4 |    77   80   76   78   77   77   78   81   79   79    77
  19  |    5   14    6   15    8    4    8    7   11   11    3 |    41   45   40   47   43   43   41   42   42   46    42
  20  |    5    9    7    8    9    3    9    6    9    9    2 |    24   25   24   27   23   25   26   24   27   25    24
  21  |    6   11    8   10   11    4    9    7    7    7    3 |    21   23   23   19   22   22   23   26   21   23    21
  22  |    5   10    5   11    7    4    9    5    9   10    2 |    19   22   17   19   19   17   19   21   20   24    18
  23  |    5   16    7    7    9    5   12    7    6   10    3 |    38   39   40   40   41   38   37   38   38   40    38
 X24E |    9  ---   11   16   13    4    9    8    6   10    4 |    36  ---   35   35   31   34   37   35   35   38    34
  25  |    7    9    8    6   10    5    5    5    9   10    2 |    24   26   26   28   25   25   29   24   20   29    24
  26  |    9    8    7    8   10    4    7    7    9    5    2 |    33   29   28   33   27   28   30   28   26   31    28
  27  |   10   11    7    8   12    3    8    8    8   11    3 |    24   28   28   25   24   25   27   22   24   25    24
 X28  |    8   11    5    9    8    5    6    7    8  ---    3 |    24   26   23   24   18   22   27   23   24  ---    23
  29  |    8   18    6    9   14    5    7    7    9   12    3 |    37   40   35   40   37   38   39   38   42   41    37
  30E |   11   14    8   12    9    5    9    4   11    7    3 |    48   48   48   50   51   48   48   49   49   49    48
  31E |    8   11    9   13   16    7    7    9   10    8    3 |    42   43   41   41   40   41   44   41   41   44    41
  32  |    6   10    7    8    7    5    7    7    6    9    2 |    30   31   31   33   28   29   33   31   30   33    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    8    9   11    5    9    7    9    9      |T   57   55   56   58   57   57   59   57   57   59    57
 WRMS |    7   13    8    9   10    5    9    7    9    9      |NE  77   71   78   79   77   78   80   78   78   79    77
 MEDI |    8   12    7    9   10    5    9    7    9    9      |MD  29   31   29   30   28   28   30   28   28   31    28



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 4.2203   GPS week: 2203   MJD: 59665.0-59671.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |U    8    15    32 |U   10    17    37 |U    9    10    27 |
emr | emr 3043 |U   17    14    46 |U   11    22    49 |U   13    14    37 |
esa | esa 2976 |    11    10    27 |U    9    15    38 |    10    12    27 |
gfz | gfz 2974 |U    7     9    21 |U    9    12    32 |U    9     9    25 |
grg | grg 3069 |U    7    13    22 |U   10    11    30 |    10     9    29 |
igr | igr 3070 |     7     9    21 |     8    14    32 |     8    10    24 |
igs | igs 3070 |     7     9    22 |     9    13    31 |     8    10    24 |
jpl | jpl 3058 |U   12    13    30 |U   10    19    45 |U   11    15    33 |
mit | mit 3072 |U    7     9    19 |U    9    11    32 |U    8     8    25 |



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 5.2203.0   GPS week: 2203   Day: 0   MJD: 59665.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     8    10    22 |    10    18    36 |    10     5    22 |
emr | emr 3072 |    17    11    47 |    11    24    46 |    15     9    39 |
esa | esa 2976 |    10     8    20 |     9    15    35 |    12     9    28 |
gfz | gfz 2974 |     8     7    19 |     9    14    33 |    11     5    24 |
grg | grg 3071 |     8     9    23 |    11    13    31 |    10     6    26 |
igr | igr 3072 |     8     7    17 |     9    15    28 |     9     6    22 |
igs | igs 3072 |     8     7    17 |     9    15    30 |     9     6    22 |
jpl | jpl 3072 |    10    12    19 |     9    21    41 |    10    12    32 |
mit | mit 3072 |     8     6    16 |     9    14    32 |     9     5    19 |

Table 5.2203.1   GPS week: 2203   Day: 1   MJD: 59666.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3064 |     5    12    26 |    12    17    39 |     9    11    30 |
emr | emr 3064 |    19    12    52 |    15    26    50 |    13    13    38 |
esa | esa 2976 |    12    12    29 |    12    20    40 |     9    13    27 |
gfz | gfz 2968 |     7     8    23 |    11    12    32 |     9     9    30 |
grg | grg 3064 |     7    11    23 |    12    13    28 |     9    11    35 |
igr | igr 3064 |     8     9    22 |    11    15    33 |     8    11    28 |
igs | igs 3064 |     8     9    23 |    12    15    31 |     7    11    28 |
jpl | jpl 2976 |    13    12    27 |    15    20    50 |     9    14    35 |
mit | mit 3072 |     7     9    20 |    12    11    30 |     8     8    28 |

Table 5.2203.2   GPS week: 2203   Day: 2   MJD: 59667.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     6    14    26 |    11    19    33 |     9     8    22 |
emr | emr 3072 |    14    10    48 |    14    28    47 |    13    17    35 |
esa | esa 2976 |    11    10    29 |    11    18    34 |    10    12    24 |
gfz | gfz 2976 |     6    10    22 |    12    15    32 |     9     8    23 |
grg | grg 3070 |     7    14    22 |    12    13    29 |     9     8    27 |
igr | igr 3072 |     7    10    23 |    11    17    28 |     8     9    21 |
igs | igs 3072 |     7    10    21 |    11    16    28 |     7     8    22 |
jpl | jpl 3072 |    11    14    24 |    12    18    41 |     9    11    31 |
mit | mit 3072 |     6     9    19 |    12    13    31 |     7     6    20 |

Table 5.2203.3   GPS week: 2203   Day: 3   MJD: 59668.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7    11    24 |     7    16    33 |     6    12    26 |
emr | emr 3072 |    18    15    53 |     9    18    47 |    11    14    38 |
esa | esa 2976 |    11    10    27 |     6    12    34 |     8    12    29 |
gfz | gfz 2974 |     7     7    22 |     7    11    29 |     7    10    22 |
grg | grg 3072 |     8    12    21 |     7     8    31 |     7    10    24 |
igr | igr 3072 |     7     8    22 |     5    13    28 |     6    12    23 |
igs | igs 3072 |     7     9    22 |     6    11    28 |     5    12    22 |
jpl | jpl 3072 |    11    12    28 |     6    17    38 |     9    20    33 |
mit | mit 3072 |     6    10    20 |     7     9    29 |     5     9    23 |

Table 5.2203.4   GPS week: 2203   Day: 4   MJD: 59669.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    16    39    77 |    10    22    45 |    13    12    38 |
emr | emr 2976 |    22    17    43 |    10    21    39 |    13    13    36 |
esa | esa 2976 |    10    11    31 |     8    14    37 |    12    13    30 |
gfz | gfz 2976 |     7    12    22 |     8    13    27 |    12    10    31 |
grg | grg 3072 |     7    15    24 |     9    10    27 |    14    10    35 |
igr | igr 3072 |     7    10    26 |     7    15    27 |    11    12    31 |
igs | igs 3072 |     9    14    34 |     7    14    29 |    11    11    31 |
jpl | jpl 3072 |    19    14    62 |    13    21    53 |    17    18    41 |
mit | mit 3072 |     7    11    21 |     8    11    27 |    11    10    35 |

Table 5.2203.5   GPS week: 2203   Day: 5   MJD: 59670.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7     9    24 |    11    13    43 |     8    10    23 |
emr | emr 3072 |    14    16    42 |    10    21    54 |    12    14    37 |
esa | esa 2976 |    10     9    29 |    10    14    42 |     8    12    23 |
gfz | gfz 2976 |     7    11    21 |    11    10    36 |     8    11    22 |
grg | grg 3068 |     7    13    23 |    12    12    34 |    10     9    27 |
igr | igr 3072 |     6     7    23 |     9    11    43 |     7    10    22 |
igs | igs 3072 |     6     7    21 |    10    12    37 |     7    10    21 |
jpl | jpl 3072 |    10    12    24 |     9    15    48 |     9    15    31 |
mit | mit 3072 |     6     9    20 |    10    11    42 |     8     8    23 |

Table 5.2203.6   GPS week: 2203   Day: 6   MJD: 59671.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7    13    23 |     8    13    32 |    10    13    28 |
emr | emr 2976 |    12    17    39 |    11    15    64 |    16    16    34 |
esa | esa 2976 |    10    10    25 |     8    12    43 |    11    14    26 |
gfz | gfz 2976 |     7    10    21 |     8     9    33 |    10    10    25 |
grg | grg 3072 |     8    16    20 |     7     9    29 |    12     9    30 |
igr | igr 3072 |     7     9    18 |     7    12    35 |    11    12    24 |
igs | igs 3072 |     6    10    18 |     7    10    33 |    10    12    24 |
jpl | jpl 3072 |    12    12    24 |     8    19    45 |    11    16    32 |
mit | mit 3072 |     6    10    18 |     8     8    33 |    10    10    25 |


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 6.2203   GPS week: 2203   MJD: 59665.500-59671.500

                                                         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     -14      40     -56      5 |      10     25
            |       7      15      57      53      6 |       2
emr   uuuuu |     -26     -20     109     179    -11 |      11     28
            |      15      20     125      31      7 |       6
esa   uuuuu |      19      -4      38     124      0 |      42     48
            |      16      10      60     113      5 |       3
gfz   uuuuu |      -9      -5      62      28      2 |      28     36
            |      27      22      74      85      5 |       2
grg   uuuuu |       9      16      61     -49      3 |       7     23
            |      19      11      44      80      4 |       2
igr   xxxxx |       0       9      15      50     -6 |       9     24
            |       8       9      69      45      5 |       3
irf   xxxxx |       0      11     -55     -28     -6 |       5     25
            |       9       9      23      21      5 |       3
jpl   uuuuu |       6       4      96      10     -4 |      30     37
            |      25      14      43      40      9 |       3
mit   uuuuu |     -17      18    -157    -142     -2 |      23     32
            |      21      13      50      52      7 |       2
ngs   uuuuu |      16      -9    -124      29      3 |      10     26
            |      50      28      96     199      7 |       3
sio   xxxxx |     -38      11    -348    -454     -4 |      30     38
            |      67      20      87     209      9 |       2


Table 7.2203.0   GPS week: 2203   Day: 0   MJD: 59665.500

                                                         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 |       7     -22      70      21      4 |       9     23
emr   uuuuu |     -26     -23     128     204    -22 |      18     28
esa   uuuuu |     -12      17       8    -110      5 |      41     47
gfz   uuuuu |       9      -1     205      73      7 |      26     34
grg   uuuuu |       6       8     140      42     -1 |       7     23
igr   xxxxx |       1      14      19      14     -4 |      10     23
irf   xxxxx |       9       4     -10       3      0 |       7     23
jpl   uuuuu |      -7     -24      91      85     -7 |      34     40
mit   uuuuu |       3       3    -121     -47     10 |      20     30
ngs   uuuuu |      14      29    -285     -85      5 |       9     23
sio   xxxxx |      30       3    -361    -133      4 |      27     36

Table 7.2203.1   GPS week: 2203   Day: 1   MJD: 59666.500

                                                         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       7      59       6      2 |       9     23
emr   uuuuu |     -44     -25     115     139     -9 |      15     27
esa   uuuuu |      19      -9      17      98      3 |      42     48
gfz   uuuuu |      32       4      74      86      3 |      27     35
grg   uuuuu |      18      31      42      69      3 |       7     23
igr   xxxxx |     -14       5      -7      40     -6 |      10     23
irf   xxxxx |      -4       4     -44     -14    -10 |       7     24
jpl   uuuuu |     -16       5      38      20    -13 |      33     39
mit   uuuuu |     -33       9     -90    -108     -6 |      22     32
ngs   uuuuu |      35     -37    -167    -216      8 |       9     24
sio   xxxxx |      48     -21    -261    -538     -7 |      30     38

Table 7.2203.2   GPS week: 2203   Day: 2   MJD: 59667.500

                                                         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 |     -10     -10     103     -85     12 |      13     25
emr   uuuuu |     -38     -21      34     212    -17 |      16     27
esa   uuuuu |      26     -10     -10     242      0 |      47     52
gfz   uuuuu |     -20     -32       0      46     -8 |      32     38
grg   uuuuu |      29      17      98     -67     10 |      11     23
igr   xxxxx |       2      -6     -34      55     -6 |      13     23
irf   xxxxx |     -14      17     -67     -33    -13 |      10     23
jpl   uuuuu |     -18       1     158      15      8 |      35     40
mit   uuuuu |     -37      18    -152    -183     -4 |      27     33
ngs   uuuuu |      65       9    -135     -32     -7 |      15     25
sio   xxxxx |     -66      16    -262    -497      3 |      34     40

Table 7.2203.3   GPS week: 2203   Day: 3   MJD: 59668.500

                                                         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 |      -5     -37       9     -87     12 |      10     26
emr   uuuuu |     -35      19      22     194     -9 |      10     32
esa   uuuuu |      10      -3     154     185     -7 |      43     51
gfz   uuuuu |     -21      17     -29      42      2 |      28     39
grg   uuuuu |      35       8      42     -38      6 |       7     25
igr   xxxxx |      11      11     -38     115      3 |       9     27
irf   xxxxx |       3      20     -72     -28     -9 |       6     29
jpl   uuuuu |     -12       7     118     -31     -1 |      30     39
mit   uuuuu |     -22      21    -175    -181     -5 |      23     34
ngs   uuuuu |      53     -22    -110     102     -9 |      10     29
sio   xxxxx |     -51      23    -326    -525    -12 |      32     40

Table 7.2203.4   GPS week: 2203   Day: 4   MJD: 59669.500

                                                         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 |      -3     -24      44    -125      6 |       7     21
emr   uuuuu |     -14     -11      18     202     -3 |       5     25
esa   uuuuu |      27       0     -11     155     -5 |      38     43
gfz   uuuuu |     -45     -39      60    -152      6 |      24     32
grg   uuuuu |      -1       7      42     -90      1 |       4     19
igr   xxxxx |       5      15     -53     108    -15 |       5     22
irf   xxxxx |      -8      15     -67     -66     -6 |       1     24
jpl   uuuuu |      20      12      43     -35    -15 |      26     33
mit   uuuuu |     -37      24    -129    -194    -11 |      20     30
ngs   uuuuu |      53      12      37     422      7 |       5     23
sio   xxxxx |     -74      37    -303    -795    -18 |      29     37

Table 7.2203.5   GPS week: 2203   Day: 5   MJD: 59670.500

                                                         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 |       7     -12      67     -74      4 |      11     27
emr   uuuuu |      -2     -41      74     146    -16 |       7     27
esa   uuuuu |      22     -10      28     120      3 |      41     47
gfz   uuuuu |     -30       3      48       3      2 |      28     38
grg   uuuuu |     -20      31       9    -108      3 |       7     23
igr   xxxxx |      -5      20     104      11     -8 |       7     24
irf   xxxxx |       9      -2     -50     -31     -4 |       4     26
jpl   uuuuu |      38      21     119      17      5 |      28     34
mit   uuuuu |      15       9    -189    -132     -1 |      23     33
ngs   uuuuu |     -54      -6     -95      33      4 |      10     28
sio   xxxxx |      -7      -3    -496    -398     -6 |      31     39

Table 7.2203.6   GPS week: 2203   Day: 6   MJD: 59671.500

                                                         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 |      -7      -1     -74     -47     -4 |      11     27
emr   uuuuu |     -25     -35     374     152     -4 |       4     29
esa   uuuuu |      37     -10      79     178      5 |      41     47
gfz   uuuuu |       9      11      78      94      3 |      28     38
grg   uuuuu |      -5      10      56    -153     -1 |       7     23
igr   xxxxx |      -2       4     115       8     -8 |       5     25
irf   xxxxx |       5      21     -77     -28     -1 |       3     27
jpl   uuuuu |      37       5     104      -3     -8 |      27     34
mit   uuuuu |     -12      41    -242    -153      2 |      23     33
ngs   uuuuu |     -54     -46    -115     -20     10 |      10     28
sio   xxxxx |    -145      25    -427    -295      8 |      31     39


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