[IGSREPORT-28660] Wk 2207 IGS Final Orbits

acc acc at igs.org
Sun May 15 00:28:34 UTC 2022


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2207   (Apr 24, 2022 - Apr 30, 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:

igs2207[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2207[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2207[0-6].cls  IGS GPS clock combination summary report.
igs22077.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs22077.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   | BJCO BRAZ CPVG MAL2 TOW2 TSKB YKRO CPVG
                0  |  ESA   | FTNA
                0  |  GRG   | 21 21 NKLG SGOC
                1  |  EMR   | BADG MCM4 NIST
                1  |  JPL   | BADG
                1  |  MIT   | GOLD
                2  |  COD   | BJCO ASCG BJCO
                2  |  EMR   | TLSE KERG TLSE
                2  |  ESA   | SVTL TLSE
                2  |  GFZ   | NIST PDEL
                2  |  GRG   | BRFT DGAR HYDE SVTL TLSE BRFT DGAR HYDE SVTL TLSE
                2  |  JPL   | ZECK PDEL SVTL ZECK
                3  |  COD   | HARB MIZU NYA2 SCRZ SGOC XMIS NYA2 SCRZ
                3  |  EMR   | KERG MIZU
                3  |  ESA   | DAV1 DAV1
                3  |  GFZ   | 21 CHPI GODE NOVM GODE NOVM SAVO XMIS
                3  |  GRG   | 21 21 SVTL SVTL
                3  |  JPL   | CUSV CUSV HARB PTGG XMIS
                4  |  COD   | 2 21 2 21 BJCO DAEJ FLIN GLSV HYDE NYA2 SAVO DAEJ
                4  |  COD   | FLIN GLSV
                4  |  EMR   | MCM4
                4  |  ESA   | ISBA ISBA
                4  |  GFZ   | IRKJ IRKJ
                4  |  GRG   | 21 21 FLIN SVTL ULAB FLIN GLSV NYA2 SVTL ULAB
                4  |  JPL   | PDEL
                5  |  COD   | GLSV NOVM POVE GLSV JOZE
                5  |  EMR   | MCM4 MCM4
                5  |  ESA   | FLIN GLSV QAQ1 YEL2 FLIN YEL2
                5  |  GFZ   | NIST NOVM NTUS
                6  |  COD   | GLSV MKEA NTUS SAMO SAMO
                6  |  EMR   | MCM4 NIST
                6  |  GRG   | 11 13 21 DARW GLSV SGOC SVTL SYOG SGOC SVTL
                6  |  JPL   | WTZR

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                1  |  COD   | ~23:50 | ~ -0.23 ns
                2  |  COD   | ~11:25 | ~ -0.21 ns

 6. 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.

 7. 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
               ----+--------+---------------
                3  |  GFZ   |  18

 8. 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 G02 |  4 |    |    |    |    |    |    |

 9. 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.

10. 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 |    -.0    -.0     .1       4      3      0    -.10
       EMR  |   0 |     .2   -1.7   -2.6      -4    -10     -6     .09
       ESA  |   0 |    -.6   -1.4    -.1     -10     19     26    -.19
       GFZ  |   0 |    -.4     .3     .1      18     12     -4     .02
       GRG  |   0 |    1.4    -.1  -22.3      -6    -24      2     .07
       JPL  |   0 |   -1.2   -6.6    3.4      -1     15     -7    -.15
       MIT  |   0 |   -1.6    3.2    6.2      -3     -1     25     .02
       NGS  |   0 |    6.5   -2.2    6.5     -27    -24     34     .02
       SIO  |   0 |   -1.5    -.4   10.9      -1    -54      3    -.04

       COD  |   1 |    -.0    -.0     .2       1      3     -4    -.14
       EMR  |   1 |     .4   -2.7    7.7      18    -74    -23     .11
       ESA  |   1 |    -.2   -1.4    -.2      -8      8     40    -.05
       GFZ  |   1 |    -.0    -.3     .2       6      0     -2     .01
       GRG  |   1 |    1.4    -.8  -16.2      21    -18    -35     .03
       JPL  |   1 |    5.3   -9.3    6.1       0      2     -4     .01
       MIT  |   1 |     .7    1.1    3.9       9      5     -2     .17
       NGS  |   1 |    5.9   -4.7   11.9     -26    -32      5     .17
       SIO  |   1 |    1.0     .4    9.7      -2    -73     11     .10

       COD  |   2 |    -.0     .1     .2       3      3     -3    -.14
       EMR  |   2 |    1.8   -1.7    2.1      -3    -11      1     .23
       ESA  |   2 |    -.6   -1.4    -.1      -9     16     30    -.12
       GFZ  |   2 |    -.1    -.4    -.0       2      1      9    -.12
       GRG  |   2 |   -1.4    -.7  -20.0      18    -16    -40     .08
       JPL  |   2 |    5.8   -5.8    3.1       7      4    -11    -.05
       MIT  |   2 |   -2.2    3.8    2.1       3      2     10     .13
       NGS  |   2 |    3.8   -7.9   12.8     -83    -33     19     .04
       SIO  |   2 |   -1.7    1.3    5.2       3    -15      6    -.12

       COD  |   3 |    -.0     .1     .4       3      6     -3    -.20
       EMR  |   3 |   -1.9     .8    -.8      -7    -21     -6     .17
       ESA  |   3 |    -.3   -1.7     .0     -23     26     31    -.09
       GFZ  |   3 |     .2    -.5    -.1       2     -1      4    -.06
       GRG  |   3 |     .6    -.7  -17.2      13     -5    -43     .09
       JPL  |   3 |     .5   -8.7    4.3       1      0      0    -.20
       MIT  |   3 |   -2.4    2.8    1.8       8      3      9     .21
       NGS  |   3 |    1.5   -4.9    4.4     -47     15     16     .16
       SIO  |   3 |   -3.0    1.1    5.4       1     -2      3    -.10

       COD  |   4 |     .1     .0     .2       2      5     -6    -.15
       EMR  |   4 |   -2.7    -.4   -1.2      18      3    -27     .28
       ESA  |   4 |   -1.0   -1.5     .7     -50      7     34    -.14
       GFZ  |   4 |    -.1    -.6     .2       6     15      7    -.10
       GRG  |   4 |    1.3     .3  -14.0      10    -11    -46     .05
       JPL  |   4 |   -2.4   -2.6    3.3      -3      8     -8    -.03
       MIT  |   4 |    1.0    4.2    3.3       3      6      7     .11
       NGS  |   4 |    2.3   -5.6    9.7     -58     -1     19     .20
       SIO  |   4 |   -1.5    1.8    8.0       2    -24    -12    -.10

       COD  |   5 |     .0     .1     .3       3      4     -2    -.09
       EMR  |   5 |     .2   -1.6   -1.0     -34     20     -6     .19
       ESA  |   5 |   -1.2   -1.2    2.4     -50      9     24    -.17
       GFZ  |   5 |    -.3    -.1    -.0       6      6     -3    -.12
       GRG  |   5 |    3.0   -2.6  -14.6       9     -7    -54    -.01
       JPL  |   5 |    2.6   -9.2    4.0       0      5     -8    -.38
       MIT  |   5 |    -.7    2.4    1.9       9     15      2     .21
       NGS  |   5 |    7.5   -7.6   16.7     -65    -27     -5     .09
       SIO  |   5 |   -1.3    2.9    7.4      18    -23     35     .04

       COD  |   6 |    -.0    -.0     .2       6      6     -1    -.04
       EMR  |   6 |    -.0   -1.9    5.1     -28      0    -10     .14
       ESA  |   6 |   -1.2    -.6    1.7     -21     -5     46    -.12
       GFZ  |   6 |    -.1    -.1     .3       8      8     -4    -.02
       GRG  |   6 |   -2.7    -.7  -14.4      13    -14    -39    -.03
       JPL  |   6 |    5.1   -7.7    5.2      -4      1     -8    -.20
       MIT  |   6 |    -.3    1.0    2.3       5      5     16     .26
       NGS  |   6 |    -.9   -6.8    9.3     -51     15     35     .20
       SIO  |   6 |   -1.6    2.1   11.5      19    -74     32    -.03


11. 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.

12. 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 1.2207.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2207.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 2.2207.[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 3.2207.[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 5.2207.0-6). 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 2207 summary.                       (Apr 24, 2022 - Apr 30, 2022)

Table 1.2207.a   GPS week: 2207   MJD: 59693.000-59699.000

         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  688|    0     0    -1    18     8     0   .01    8    7 |    -614     120      6    103
        |    0     0     0     6    15    13   .01           |     118     270
emr   80|   -2     1     3    25     1    16   .10   13   13 |  206549     175     12    118
        |    0     0     1     9     8    14   .04           |     941     468
esa  149|    0     0     0     1     5    13  -.06    7    7 |    -685     245      7     96
        |    0     0     0    13    14     6   .02           |     240     356
gfz  242|    0     0     0     7    -1   -13   .06   13   11 |     104    -124     13     79
        |    0     1     2    12    20    10   .03           |     206     265
grg  104|    2     0    -9     9    25   -17  -.09   10    9 |      82     -62      8    168
        |    0     0     2    11     8    20   .01           |      74     289
igr  n/a|    0     0    -1     3     0    -9  -.00    5    4 |    -159     198     11     99
        |    0     0     0     9     7     4   .01           |     966     452
jpl   80|    0     0     5     9     1   -14   .14    9    9 |   -1536     219      9     93
        |    0     0     1    11    13     7   .02           |     970     576
mit  372|    0     0     0    -3     0     2  -.03    8    7 |   -1597     253     26   1741
        |    0     0     2    14    20    40   .02           |    1063     428
ngs  207|    0     0     6     4    47   -15  -.07   10    9 |    -557      61    808   1746
        |    0     1     1    16    26    17   .01           |     112     244
sio  534|    0     0     0   -68  -103    13  -.03   10    9 |     ---     ---    ---    ---
        |    0     0     0    42    47    26   .02           |     ---     ---


Table 1.2207.b   GPS week : 2207   MJD: 59693.000-59699.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         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 2.2207.0   GPS week: 2207   Day: 0   MJD: 59693.000                            

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  695|    0     0    -2    24    31   -12   .03    8    8 |    -613     232      6     88
emr   80|   -3     0     1    11    -4     8   .10   13   13 |  205351     128     14    134
esa  150|    0     0     0    11    24    19  -.07    7    7 |    -742     256      7     92
gfz  230|    1     1     0    19    29    -6   .06   13   11 |      60    -125     13     74
grg   97|    2     0   -13    13    25   -26  -.08   13   10 |      88    -138      8    178
igr  n/a|    1     0     0    11     0   -14  -.01    4    4 |   -1472      73     12     90
jpl   80|   -1     0     4     7    17   -23   .13    8    8 |   -2849       7      9     80
mit  372|    0     0     0   -23   -34    35  -.03    9    8 |   -2997     -20     26   1920
ngs  205|    0     0     4   -12    36   -18  -.08    9    8 |    -458    -323    621   1637
sio  521|    1     0     0   -43  -151   -21  -.03   10   10 |     ---     ---    ---    ---

Table 2.2207.1   GPS week: 2207   Day: 1   MJD: 59694.000                            

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  697|    0     0    -1    16    18    -7   .02    8    8 |    -475     -26      7    149
emr   80|   -3     0     4    32     0    -2   .08   13   13 |  205744     114     13    143
esa  150|    0     0     0    17    13    15  -.05    7    7 |    -250    -474      7    114
gfz  245|    0     1    -2     5    25   -16   .06   13    9 |     137    -187     15    109
grg  104|    1     0    -9    26    34   -33  -.10    9    9 |     148     -46      9    181
igr  n/a|    0     0    -1     4    10   -12  -.01    4    4 |   -1084     245     12    110
jpl   80|    0    -1     3    -4    -8    -9   .12    8    8 |   -2647     646      9    144
mit  372|    0     0     1    -1    24    43  -.05    9    9 |   -2129     268     26   2031
ngs  206|    1     0     6    11    27   -18  -.05   10   10 |    -662     259    773   1685
sio  529|    0     0     0  -109  -151     9  -.01   10    7 |     ---     ---    ---    ---

Table 2.2207.2   GPS week: 2207   Day: 2   MJD: 59695.000                            

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  698|    0    -1    -1    25    10     1  -.01    7    7 |    -748     502      6    129
emr   80|   -2     0     2    23    14    26   .06   13   13 |  205720     756     12    148
esa  150|   -1     0     0     9     7     5  -.04    8    8 |    -880     217      7    116
gfz  243|    0     1    -3    -6   -12     2   .10   12   10 |    -219     306     15    100
grg  105|    1    -1   -10     0    21   -32  -.08    9    8 |     -61      96      8    176
igr  n/a|    0     0     0     8     0   -10   .00    5    5 |    -889     780     12    100
jpl   80|    0     0     5    23     1   -14   .14    9    9 |   -2124     811      9     98
mit  372|    0     0     1     6    -7    28  -.05    7    6 |   -1985     727     24   1780
ngs  206|    1     0     9    -9    49   -36  -.06   11   11 |    -605     -37    603   1370
sio  526|    0     0     0   -90   -99     2  -.07   10    9 |     ---     ---    ---    ---

Table 2.2207.3   GPS week: 2207   Day: 3   MJD: 59696.000                            

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  699|    0     0    -1    10     9    -9   .01    7    7 |    -438    -370      7     94
emr   80|   -3     0     3    23    -3    33   .11   14   14 |  206740     761     10    133
esa  150|    0     0     0   -13     8    10  -.09    7    7 |    -672     350      7     80
gfz  246|    0     0     0     3   -17   -11   .09   14   10 |     430    -136     15     76
grg  107|    2     0    -8    15    17   -36  -.08    8    7 |      34     284      8    161
igr  n/a|    0     0    -1   -11   -12    -8   .00    4    4 |     200     720     12     93
jpl   80|   -1    -1     3    16   -12    -9   .15    9    9 |   -1011     791      8     95
mit  372|    0     2     0     4     4    17  -.00    6    6 |   -1469     639     24   1777
ngs  211|    1    -1     4    37    43   -36  -.09    8    8 |    -588      97    697   1718
sio  544|    0     0     0  -108   -94    42  -.02    9    8 |     ---     ---    ---    ---

Table 2.2207.4   GPS week: 2207   Day: 4   MJD: 59697.000                            

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  688|    0     0    -1    10   -17    16   .01    6    6 |    -727     258      6     87
emr   80|   -3     1     3    38     6    32   .16   14   14 |  207089     123     11    107
esa  149|    0    -1     0     7     0    17  -.08    7    7 |    -858     202      8     84
gfz  248|    0    -1    -1    30   -15   -31   .03   15   13 |     231    -507     13     60
grg  106|    3    -1    -8    14    38    -7  -.08    9    9 |     115    -368      8    151
igr  n/a|    0     0    -2    17     3   -12  -.01    5    5 |     465    -126     12    115
jpl   80|   -1     0     5    23    18   -25   .18   10    9 |    -796    -120     11     72
mit  372|    0     1     0    -7   -12    -6  -.03    7    7 |   -1054      54     27   1254
ngs  212|    1     0     6    -3   103   -10  -.05   11   11 |    -536    -134   1043   2003
sio  546|    0     0     0   -92  -106   -13  -.05   10    9 |     ---     ---    ---    ---

Table 2.2207.5   GPS week: 2207   Day: 5   MJD: 59698.000                            

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  676|    0     0    -2    24    13    19   .01    8    8 |    -655     137      6     93
emr   80|   -2     1     4    14   -10     7   .09   13   13 |  207535    -575     12     66
esa  150|   -1     0     0   -18   -21    22  -.05    7    7 |    -905     564     10    106
gfz  242|    0     0    -1     4   -17   -10   .07   14   12 |     -55    -319     14     70
grg  103|    2    -1   -11    -3    17    -8  -.08   10    9 |      95    -485      9    167
igr  n/a|    0     0    -1    -3    -6     0  -.01    5    5 |     758    -506     11     92
jpl   80|    0     0     7    -4   -14    -9   .11    9    9 |    -601    -765     12     85
mit  372|    0     0    -1    15     0   -69  -.03   10    8 |     394    -463     30   1424
ngs  203|    0     1     7     5    28     6  -.08   10   10 |    -685     176   1159   2039
sio  526|    0     0     1   -23    -9    44  -.03   11    9 |     ---     ---    ---    ---

Table 2.2207.6   GPS week: 2207   Day: 6   MJD: 59699.000                            

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  669|    1     0    -1    20    -5    -8  -.00    9    8 |    -643     109      6     86
emr   80|   -2     2     3    31     3     9   .14   13   13 |  207668     -82     13    100
esa  150|    0     0     0    -5     9     5  -.06    8    8 |    -493     605      9     80
gfz  244|    1     0     3    -3    -2   -18   .00   12   12 |     146      97     11     69
grg  111|    2    -1    -7    -1    21    22  -.11   10    9 |     155     219      9    163
igr  n/a|    0     1    -1     0     5    -7   .01    5    4 |     908     200     11     98
jpl   80|    0    -1     6     7     7   -12   .13    9    9 |    -728     165     11     77
mit  372|    0     0    -4   -20    22   -30  -.02    8    7 |   -1945     570     28   2002
ngs  210|    0    -1     4     0    40     3  -.06    8    8 |    -370     393    764   1776
sio  546|    0     1     0    -7  -112    28  -.02   10    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 3.2207.0   GPS week: 2207   Day: 0   MJD: 59693.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8   12    7   13   11    3    8    9    7   11    3 |    35   39   37   38   35   36   39   40   39   39    37
   2E |    8   11    8    9    7    7    9    8    8    9    3 |   157  157  154  159  154  156  123  159  157  153   156
   3  |    8    9    7   10    6    3    7    6    9    6    2 |    33   34   35   35   32   34   38   35   34   34    35
   4  |    9   12    4    9    7    3   12    7    9   10    3 |    75   77   75   80   75   77   76   77   83   77    76
   5  |    6    9    6    9    9    3    5    7    5    9    2 |    61   60   63   61   61   62   63   61   60   59    61
   6E |    7    9    6   18    9    4    7    7    8   16    3 |    51   49   50   57   52   50   50   52   49   52    51
   7E |    7   12   10   10   13    5    8    7   11    6    3 |    32   29   34   32   35   33   32   32   35   35    32
   8  |    9    9    6    8    8    4    6    6    8   10    2 |    32   32   33   32   31   32   34   32   31   33    31
   9  |    9    8    6    8    5    4    8    5   11    7    2 |    21   29   24   23   21   23   29   21   27   23    23
  10  |    8    7    7    7    8    5    6    9    7    9    2 |    34   37   34   32   34   33   37   33   30   34    33
 X11E |   14   19   11   34   19    7   11   16   17  ---    6 |    54   56   54   63   51   55   56   55   54  ---    54
  12  |   10   20    7    8   10    4    8    8    8    9    3 |    47   55   45   48   43   46   51   50   48   47    47
  13  |    7   12    7   10   12    5   11   10    5   13    3 |    33   40   32   32   34   32   37   38   35   38    34
  14  |    8   13    8   10   10    4    9    6    9    8    3 |    49   49   47   51   56   48   48   51   49   52    49
  15  |    5    9    7   11    8    6    7   13    8   14    3 |    40   40   40   42   39   40   42   37   37   33    38
  16  |    5   19    4   10    8    5    8    9   10    9    3 |    34   39   32   33   30   30   32   31   32   31    32
  17  |    7   10    6   13    8    4    9    8    8    8    3 |    34   35   30   36   34   33   37   32   34   31    33
  18E |   10   27   11   42   18    6   13   14   16   18    6 |    35   39   40   38   39   37   44   38   41   40    37
  19  |    8   10    7   16   10    3    8    9    7    9    3 |    41   42   42   45   41   42   42   42   42   40    41
  20  |    8    9    4   11   10    4    5   10    8    8    2 |    25   25   25   27   23   24   26   28   22   24    24
  21E |   11   11    8   14   46    5    8    8   10    7    5 |   112  113  112  117  118  113   92  116  115  113   114
  22  |    6    8    6   10    7    5    5    7    8   10    2 |    34   35   32   38   31   33   34   35   37   36    34
  23  |    8   10    5    9   10    3    9    9    9   11    3 |    50   50   52   54   52   51   50   55   56   54    52
  24E |   14   10    5   11   14    4   10   10    9   11    3 |    36   37   36   34   42   35   36   40   36   40    36
  25  |    8   16    8    9    9    4    5    9    6   15    3 |    36   44   40   40   37   39   41   40   42   43    39
  26  |    6   11    6   12    7    4    6   10    7    6    2 |    51   51   51   55   49   49   53   46   53   48    50
  27  |    5    8    7    8   12    4    6    9    8    9    2 |    34   34   34   32   30   33   34   33   32   35    33
 X28  |    9   12   10   24    9   10   14    8   13  ---    4 |    21   25   21   28   20   20   32   21   26  ---    22
  29  |   10   18    6   12   10    6    9    7    8   13    3 |    37   34   35   38   31   35   38   34   36   37    35
  30E |    9   10    5   11   13    5   12    8   12    9    3 |    31   29   28   29   32   28   31   29   30   30    29
  31E |    7   15    6   12   24    5    8    7   10   11    4 |    40   47   40   42   43   42   42   42   45   48    42
  32  |    7   10    8    8    6    5    7   13    7   11    3 |    24   33   29   26   24   27   31   23   27   26    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7   13   13    4    8    9    9   10      |T   44   46   44   46   44   44   45   45   46   46    44
 WRMS |    8   13    7   11   10    4    8    8    8   10      |NE  36   38   36   37   35   35   38   36   36   37    35
 MEDI |    8   10    7   10    9    4    8    8    8    9      |MD  35   39   36   38   35   35   38   38   37   38    36

Table 3.2207.1   GPS week: 2207   Day: 1   MJD: 59694.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    7   18    5    8   10    4    7    8    8   12    3 |    28   34   28   28   30   29   29   32   31   33    29
   2E |    7   11   11    9   14    7    9   12   12    8    3 |   129  127  125  128  127  127  107  129  129  127   127
   3  |    8    6    6    9    7    3    7    6   11   10    2 |    23   27   26   23   21   24   28   24   28   27    25
   4  |    8   13    6   10    8    4   11    9   12    9    3 |    54   57   56   59   58   56   55   57   65   58    57
   5  |    7    9    7   10    8    5    6    9    8   10    3 |    36   37   34   37   37   36   38   37   36   37    35
   6E |    6   12    8   14   14    5    7    9   10   11    3 |    44   48   43   47   45   43   46   46   45   47    44
   7E |    8   13   11   10   11    5    8    9   11    7    3 |    25   27   27   24   29   25   26   28   28   26    25
   8  |    8    8    6   10    7    5    7    6   10    7    2 |    20   24   22   21   19   21   24   21   21   24    21
   9  |    8    8    7    7    5    4    7    7   10    7    2 |    21   27   21   20   20   21   26   21   26   21    21
  10  |    7    8    7    9    7    4    7   12    8    6    2 |    29   30   29   28   27   28   33   28   25   29    28
 X11E |   14   20   11   28   15    6   12   16   19  ---    6 |    42   43   42   46   39   40   45   44   42  ---    42
  12  |    8   20    7    7    8    4    8    8    7    8    3 |    32   34   30   31   29   30   32   34   33   32    31
  13  |    8   10    7   12   10    6   10   11    8   13    3 |    25   30   23   26   23   23   28   27   26   28    24
  14  |   10   12    9   11    8    5    9    7   10    7    3 |    39   41   37   46   40   38   40   41   41   44    40
  15  |    7   10    5    9    7    6    7   13    9   11    3 |    28   33   27   30   27   29   32   27   28   27    27
  16  |    5   19    5   10    8    5    8    8   13    7    3 |    22   24   21   23   21   21   20   21   25   25    21
  17  |    8   10    6   12    8    3    7    5    9    8    3 |    26   28   21   29   25   24   29   25   27   27    25
  18E |   11   26   10   43   16    7   13   14   21   16    6 |    31   37   33   34   34   31   39   33   36   35    31
  19  |    8   11    6   12    7    3    6    8    9    7    2 |    31   32   29   33   30   31   33   32   33   31    30
  20  |    8   10    5   12    9    4    7   11   11   11    3 |    23   25   22   25   23   23   26   26   24   24    22
  21E |    8    9    9    9    6    6    6    5    9    6    2 |    86   86   90   91   81   88   72   91   90   90    88
  22  |    8    7    4    9    6    3    7    8    8    7    2 |    23   26   22   26   21   23   22   25   23   28    23
  23  |    6   14    4   10    9    5    8   11   11    8    3 |    36   38   38   39   36   37   37   40   38   38    37
  24E |    9   16    8   10    7    5    8    8    9   15    3 |    41   34   41   39   40   43   43   44   42   48    42
  25  |    7   13    7    7    7    4    7    8    9   11    3 |    26   30   29   26   22   27   30   28   25   29    27
  26  |    7    8    7   14    5    3    7    6    9    6    2 |    37   37   38   39   36   36   39   35   37   38    36
  27  |    5    8    7    8    9    3    5    7    9    7    2 |    22   24   22   20   19   21   24   22   22   27    21
 X28  |   12   13    6   15   10    5    9   11   10  ---    4 |    18   22   17   22   20   17   25   20   23  ---    18
  29  |    8   19    5    9    9    4    7    7    8   10    3 |    28   27   25   30   22   26   28   26   27   28    26
  30E |   10   15    8    9    9    4   10    9   12   13    3 |    27   26   25   25   29   25   26   27   27   28    25
  31E |    7   11    5   11   13    4    7    9   10   15    3 |    28   34   25   31   27   29   30   29   30   31    28
  32  |    9    9    7    8    5    3    9    8    7   10    3 |    25   31   26   22   25   25   32   25   26   24    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7   13    9    4    8    9   10   10      |T   34   36   34   35   33   34   35   35   36   37    34
 WRMS |    8   13    7    9    9    4    8    9   10    7      |NE  26   29   26   27   25   26   29   27   27   29    26
 MEDI |    8   11    7   10    8    4    7    8    9    8      |MD  28   31   27   29   27   28   30   28   28   29    27

Table 3.2207.2   GPS week: 2207   Day: 2   MJD: 59695.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8   11    9   10    9    5    9    9    8   10    3 |    25   27   22   27   26   21   25   23   23   25    23
   2E |    9    9   12    8   11    8    8   10   13    9    3 |    90   90   91   87   90   90   63   91   92   90    90
   3  |    5    7    8    7    7    4    6    4    8    9    2 |    24   29   26   25   23   23   27   22   21   26    24
   4  |    6   15    6    8    9    3   12    7    8   10    3 |    55   57   54   56   56   55   56   55   59   57    55
   5  |    6   10    8   11    7    5    7    6    7    7    2 |    44   46   46   48   46   45   48   43   43   45    45
  X6E |   10  ---   10   13   10    5    9    7   11   10    3 |    28  ---   31   37   31   29   28   29   29   32    29
   7E |    8   14   11    9   12    4    9    6   14    7    3 |    26   28   28   28   32   27   27   28   30   28    27
   8  |    9   10    8    8    6    3   10    5    9   10    3 |    29   29   29   29   28   28   28   27   28   30    27
   9  |    8    9    8    7    7    3    7    5    9    9    2 |    20   26   20   18   19   20   27   19   25   26    21
  10  |    6    7    7    6    6    5    8    8   11   11    2 |    26   27   26   25   26   24   27   23   24   27    25
 X11E |   14   23   14   27   18    7   13   16   16  ---    6 |    23   26   25   34   21   24   26   24   26  ---    22
  12  |    8   18    6    9    8    4    9    5    8    7    3 |    35   42   34   36   33   35   40   36   39   36    36
  13  |    5   13   10    9    9    5    9    9    8   13    3 |    31   40   31   34   34   33   40   35   38   38    34
  14  |    8   14   11   12   10    5    8    7   15    9    3 |    35   32   32   44   40   35   34   37   33   42    36
  15  |    5   11    7    8    7    6    9   11   10   14    3 |    35   38   34   34   34   34   37   31   34   30    33
  16  |    5   20    6    9    7    6    8    7   10    8    3 |    28   33   28   31   24   27   28   26   30   29    27
  17  |    8   10    8   11    7    4    7    6   10   12    3 |    28   31   26   33   28   27   30   28   31   28    28
  18E |   10   28   11   43   17    7   15   15   22   18    7 |    21   31   20   32   22   17   24   24   25   22    18
  19  |    9   12    8    9    7    2    6    5   12    9    3 |    24   27   27   28   27   25   29   27   29   27    26
  20  |    7   10    7   12    8    4    7    8   14   10    3 |    20   20   19   22   21   17   20   21   20   21    19
  21E |    8    9   10   11   10    4    8    4    9    7    3 |    68   68   67   69   64   67   54   69   68   68    67
  22  |    6    9    5    8    7    4    6    6   10    8    2 |    34   33   36   38   35   35   37   37   39   37    35
  23  |    6   11    6   13    8    5    9    8   12   12    3 |    33   34   34   36   36   35   35   37   38   37    35
  24  |   11   12    8   11    7    5    9    7    9    9    3 |    33   34   34   29   31   32   36   33   36   37    33
  25  |    5   16    7    9    6    5    8    5    6    8    2 |    56   61   61   57   58   57   60   56   60   56    58
  26  |    5    8    7   10    5    4    6    5   10    6    2 |    34   34   33   38   32   34   36   34   37   35    34
  27  |    7   12    8    7    8    3    6    5   11    9    2 |    29   29   30   32   27   29   27   26   25   33    28
 X28  |    7   19    8   17   10    6   10    9   18  ---    4 |    26   32   27   23   24   25   31   27   33  ---    25
  29  |    7   16    5    7    7    4    9    6    9   14    3 |    31   31   30   33   32   30   35   28   33   31    31
  30E |    9   12    8   12    7    5   11    7   17   12    3 |    26   27   25   25   25   27   28   25   31   28    25
  31E |    5   13    7   13   14    5    6    6    9   13    3 |    35   39   38   39   34   37   39   37   42   41    37
  32  |    8   13    7    8    6    4    8    5    7   10    2 |    20   27   21   18   19   19   27   18   21   21    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   13    8   12    9    5    9    7   11   10      |T   33   36   33   35   33   33   34   33   35   36    33
 WRMS |    7   13    8   10    8    5    9    6   11    9      |NE  29   32   29   31   29   29   32   29   31   32    29
 MEDI |    7   12    8    9    7    5    8    6   10    9      |MD  29   32   30   33   31   29   30   28   31   31    28

Table 3.2207.3   GPS week: 2207   Day: 3   MJD: 59696.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    6  ---    8    9   10    3   10    6   12   11    3 |    21  ---   21   31   23   21   23   22   24   24    22
  X2E |    9   10    9    7    6    4  ---   10    9    8    3 |    64   64   65   61   64   65  ---   65   66   61    64
   3  |    7   10    6    8    6    4    7    5    9    6    2 |    24   27   26   26   24   26   30   25   24   27    25
   4  |    8   18    6    8    7    4   12    7   10    8    3 |    40   43   38   45   41   40   43   42   44   43    41
   5  |    7    9    8   11    6    4    7    6    8   10    2 |    40   45   44   43   42   45   47   39   45   43    42
   6E |    8   14    9   10   12    4    6    6   10    7    3 |    23   30   26   29   26   26   25   26   27   28    25
   7E |    6   14   10    6   10    4    9    7   10    6    3 |    28   27   29   29   31   28   26   31   30   33    28
   8  |    7    8    7   10    6    3    7    6    6    9    2 |    25   25   25   25   22   24   27   23   22   26    23
   9  |    7    8    7    8    4    4    8    5    8    5    2 |    19   23   18   17   16   18   24   18   16   20    18
  10  |    7    8    8    7    6    4    7    7    6    8    2 |    22   26   22   24   22   22   26   21   20   25    22
 X11E |   11   23   11   32   19    8   15   13   16  ---    6 |    28   26   28   41   30   27   27   24   29  ---    26
  12  |    6   20    7    6    7    3   10    5    6    8    3 |    30   37   30   33   28   30   32   30   31   31    30
  13  |    6   13    7   11    8    5   10    6    6   10    3 |    21   32   20   22   21   22   30   24   23   25    22
  14  |    8   14   11   10   11    5    9    5   11    9    3 |    42   38   38   42   46   42   43   45   46   49    42
  15  |    6   12    8   11    6    6    8    9    8   10    3 |    36   42   39   41   35   39   40   37   35   34    37
  16  |    7   22    6    8    8    5    9    6    8    7    3 |    25   29   24   28   22   23   24   23   25   29    24
  17  |    6   11    5   12    7    4    8    6    9    7    2 |    24   27   20   26   22   25   27   23   25   26    23
  18E |   11   29   12   55   12    8   14   12   11   10    5 |    26   33   27   40   26   23   27   28   25   26    25
  19  |    6   14    5   13    7    3    9    5    8    8    2 |    22   23   22   24   23   23   24   23   22   29    22
  20  |    7   10    6   13    8    3    7    7    8    9    3 |    17   20   15   19   15   16   19   19   17   20    16
 X21E |    6   12    7   10   10    3  ---    5   10    8    3 |    47   47   45   49   41   45  ---   47   49   48    46
  22  |    5   10    5    7    5    3    6    5    6    9    2 |    18   20   19   23   18   19   20   21   22   23    19
  23  |    6   13    6   12    7    4    8    9    8    8    3 |    31   30   30   33   34   32   31   35   35   38    32
  24  |    8    9    6   11   10    7    9    6    7    8    3 |    27   28   30   26   28   27   29   27   30   31    27
  25  |    6   13    9    9    8    3    6    5    6    8    2 |    23   30   29   26   27   25   29   27   25   28    26
  26  |    8   14    7   12    6    4    7    4    9    8    3 |    27   34   31   35   29   29   31   27   31   34    30
  27  |    7   10    7    9    9    5    6    5    8    7    2 |    28   26   28   28   25   27   28   26   26   29    26
 X28  |   10   13    6   16    9    6   10    7    9  ---    3 |    22   25   21   23   20   22   25   22   21  ---    21
  29  |    7   18    5    8    6    4    7    5    7   14    3 |    23   23   21   25   23   23   24   23   21   26    22
  30E |    5   12    6   11   13    4   12    6   11    7    3 |    20   20   18   20   25   19   21   20   20   22    19
  31E |    7   11    6   15   11    5    6    7    9   11    3 |    33   35   35   34   34   33   36   34   37   36    34
  32  |    7   11    5    8    4    4    9    6    5   11    2 |    20   23   19   17   19   20   27   20   20   21    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   14    7   14    8    4    9    6    8    9      |T   28   30   28   30   28   28   28   28   29   31    28
 WRMS |    7   14    7   10    7    4    9    6    8    8      |NE  26   29   25   27   25   26   29   26   26   29    25
 MEDI |    7   12    7   10    7    4    8    6    8    8      |MD  25   28   26   28   25   25   27   25   25   28    25

Table 3.2207.4   GPS week: 2207   Day: 4   MJD: 59697.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8   13    5   35   12    5   10    7   10   13    4 |    21   25   22   29   26   22   26   22   28   25    22
  X2E |    6   11   14   12    7    7  ---   10   12   10    4 |    96   96  100  101   97   99  ---   98   98   95    98
   3  |    5    8    6    7    7    2    7    4    8    6    2 |    22   26   21   22   19   21   26   20   24   22    21
   4  |    6   14    4   10    9    3   14    7    8    8    3 |    50   52   51   55   53   51   54   53   56   54    52
   5  |    5   10   10   10    7    6    8    7    7   10    3 |    34   31   29   33   32   33   34   32   31   33    31
   6E |    8   11    8   27   10    3    9    5   12   10    4 |    40   39   40   42   42   40   41   40   41   44    40
   7E |    4   15    9   10    9    4    8    8   12    8    3 |    28   32   29   33   31   30   29   29   33   30    29
   8  |    6    8    6    9    9    3    9    4   13    8    2 |    20   22   19   19   19   18   24   17   19   18    18
   9  |    5    8    7    6    6    4    8    6   10    5    2 |    20   25   20   21   16   19   25   18   20   19    19
  10  |    5   11    8    8   10    6   10    9    9   10    3 |    24   25   22   22   24   21   27   23   19   23    22
 X11E |   11   23   10   27   17    8   11   17   22  ---    6 |    34   32   36   40   31   35   33   34   35  ---    32
  12  |    7   20    6    7    9    4   10    6    9    9    3 |    28   32   24   26   24   25   28   27   25   29    26
  13  |    6   10    7   10    7    6   10    9    6   14    3 |    26   35   25   28   24   26   34   28   26   28    26
  14  |    7   15   10   12   10    6    9    8   13    8    3 |    43   40   40   45   48   42   41   46   45   47    43
  15  |    5   10    9    8    5    9    6    9   10   11    3 |    36   39   38   37   35   38   37   35   33   35    35
  16  |    7   22    6   11   10    6    9    8    7    8    3 |    17   20   17   23   14   16   17   16   18   20    16
  17  |    7   11    5    9    8    4    8    5   13    7    2 |    21   26   18   22   20   21   25   20   19   22    20
  18E |    8   26   12   45   14    8   14   16   16   15    6 |    27   34   34   38   27   26   33   32   28   30    28
  19  |    8   14    5    9    8    2    8    5   14   11    3 |    22   25   22   25   21   23   23   22   22   29    22
  20  |    7   10    7   10    9    4   10    9   10    9    3 |    16   19   18   18   15   16   21   18   19   19    16
 X21E |   10   11    9   17   16    6  ---    7   12    9    4 |    75   73   74   81   68   76  ---   75   76   74    74
  22  |    5   10    5    7    7    5    8    5   12    8    2 |    29   29   26   27   26   25   28   27   32   28    27
  23  |    5   13    6   14   11    6    9    8   12    9    3 |    39   37   37   40   37   37   39   41   40   40    38
  24  |    9   13    7    8    9    6   11    6   10   12    3 |    25   25   22   24   23   22   26   23   24   27    23
  25  |    9   16    7    8   10    7    8    5    8   11    3 |    34   44   39   41   40   40   41   39   38   39    38
  26  |    8   13    9   18    7    4    9   11    9    6    3 |    28   29   30   40   30   30   33   26   33   33    29
  27  |    6    9    8    8   11    3    8    4   10    8    2 |    19   21   18   19   19   17   21   17   18   19    17
 X28  |    7   14    5   22   10    5    9    6   15  ---    4 |    17   20   18   28   19   18   25   18   24  ---    18
  29  |    6   19    5    8    9    5    9    5   10   14    3 |    22   23   16   23   18   20   23   21   24   24    20
  30E |    6   11    6   10   14    4   14    7   18   10    3 |    23   21   22   25   27   22   25   22   27   25    22
  31E |    7   15    9   10   13    5    6    6   10   16    3 |    29   34   27   30   28   29   29   29   32   38    29
  32  |    5   10    6   10    6    5   11    5    7   11    2 |    20   26   20   16   20   20   27   17   17   20    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   14    7   15    9    5   10    7   11   10      |T   30   33   30   33   30   30   29   30   32   32    30
 WRMS |    6   14    7   13    9    5    9    7   11    9      |NE  25   27   24   26   24   24   28   25   25   26    24
 MEDI |    6   11    7   10    9    5    9    7   10    9      |MD  26   29   24   28   26   25   27   26   27   28    26

Table 3.2207.5   GPS week: 2207   Day: 5   MJD: 59698.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   11   14    8   25   10    5    9   12   10   13    4 |    37   38   34   31   33   33   35   39   34   38    35
   2E |    8    9   10    6   16    4    8   15   12   14    4 |   100  102  100  102  103  100  137  103  100  103   101
  X3  |    4  ---    7   12    7    3    8    6    8   11    3 |    28  ---   29   29   26   29   33   30   32   28    29
   4  |    6   14    4    7    8    3   13   10   10   10    3 |    63   64   63   66   64   63   65   65   68   63    64
   5  |    8    9    8   10    8    6    7    8    7   11    3 |    31   34   29   35   29   32   33   34   32   34    31
   6E |    7   16    9   31   15    3    8    9   16    8    4 |    50   50   49   52   48   48   49   49   47   49    48
   7E |    7   11    9    9   12    6    7   11   12   12    3 |    34   32   32   31   30   33   31   33   36   33    31
   8  |    8    8    6   10    8    3    6    6   14    8    3 |    22   26   22   22   21   20   23   21   25   21    21
   9  |    8    9    6    9    7    5    9    8    9   10    3 |    18   25   19   21   17   19   24   18   22   16    18
  10  |    6    9    7    9   10    4    6    8    6    8    2 |    29   34   29   29   31   30   32   33   29   31    30
 X11E |   14   21   13   28   15   10   12   20   18  ---    6 |    44   47   45   48   46   45   46   47   46  ---    45
  12  |    6   16    7    8   11    5   10    8    9    9    3 |    32   36   31   35   32   33   35   35   36   34    33
  13  |    7   11    7   10    8    6    9   10    5   16    3 |    21   28   21   24   22   21   28   27   24   30    23
  14  |    9   14   11   13   10    7    8    9   11    9    3 |    37   39   37   40   43   37   37   41   39   39    38
  15  |    6   10    6    9    6    6    9   12    8   15    3 |    34   36   34   36   34   34   35   35   33   34    34
  16  |    7   23    6    7   10    8   10    8   10    7    3 |    28   31   28   28   26   26   27   28   32   28    28
  17  |    6   12    5   12    6    4    8    8   11    9    3 |    23   31   23   28   23   25   28   25   25   23    24
  18E |   10   26   10   37   14    7   14   18   17   16    6 |    29   37   34   39   33   33   36   39   36   36    32
  19  |    6   11    5    9    9    4    8    8    9    9    3 |    29   35   30   33   29   31   32   29   30   30    30
  20  |   15   10    7   10   10    5    8   10   11   15    4 |    21   27   22   26   21   24   26   30   21   29    23
  21E |    6    9    8   11   11    5    9    9    8   11    3 |    79   79   77   78   79   77   99   80   78   76    78
  22  |    7   10    5    8    8    3    6    7    8    7    2 |    23   21   20   23   20   22   22   22   22   22    21
  23  |    7   13    7   13   10    6    8   10    9    8    3 |    39   39   39   44   38   40   40   43   40   42    39
  24  |   10   11    7   12    9    5   10    9    9    9    3 |    26   26   28   25   27   27   29   27   27   27    26
  25  |    8   18    8   13   10    4    7    9    9   11    3 |    29   38   33   28   25   28   32   26   31   29    28
  26  |    7   11    8    7    9    4   10   11    8    7    3 |    41   44   44   42   39   40   44   45   46   39    42
  27  |    6    9    7   10   10    4    6    6   11    6    2 |    24   26   24   23   22   22   25   25   26   23    23
 X28  |    7   11    6   16    9    8    9    7   12  ---    3 |    21   24   19   25   21   19   25   22   20  ---    20
  29  |    6   17    5    7    8    4    7    7   10   12    3 |    23   27   21   24   19   22   24   22   23   22    21
  30E |    7   13    6   10   13    5   12    9   12   10    3 |    30   29   29   28   30   29   28   31   31   28    28
  31E |   13   12    8   12   14    4    7   10    9   10    3 |    42   39   37   37   37   36   38   35   40   37    37
  32  |    7   11    7    8    5    4    8    6    8   10    2 |    31   38   32   29   30   31   37   33   34   32    32
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7   14   10    5    9   10   10   11      |T   34   38   34   36   34   34   38   36   36   35    34
 WRMS |    8   13    7   12    9    5    9    8   10    9      |NE  27   30   26   29   26   27   29   29   28   29    27
 MEDI |    7   11    7   10   10    5    8    9    9   10      |MD  29   35   30   29   30   31   32   33   32   31    30

Table 3.2207.6   GPS week: 2207   Day: 6   MJD: 59699.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   14   11    7   28    8    5    8   12    6   14    4 |    30   33   31   30   33   30   32   35   32   35    31
   2E |    6   12   12   10    8    5    7   10   11    9    3 |   123  124  123  124  123  123  120  125  124  122   123
   3M |   11    9    8   12    8    3    9    6    5    8    3 |    28   33   27   27   23   26   29   26   25   28    26
   4M |    9   17    6   10    9    3   14    8    7    9    3 |    74   73   74   75   76   73   74   75   78   77    75
   5  |    5   11    8    7    8    5    8    6    6   11    2 |    52   50   49   51   52   51   52   48   50   47    49
   6E |   10   14   10   17   18    6    7    5    9    8    4 |    90   88   89   83   80   88   89   87   91   87    87
   7  |    6   10   10   10   18    3    6    8    8   11    3 |    39   39   38   43   44   39   38   39   40   40    39
   8  |    9    6    7    9    8    3    8    6    6   10    2 |    22   24   23   23   22   23   26   21   23   24    22
   9  |    9    8    7    7    7    3    9    6    7    7    2 |    20   26   22   21   20   21   27   20   23   20    21
  10  |    5    8   11    8    8    4    8    6    6    9    2 |    27   29   26   26   27   26   28   25   21   25    25
 X11E |   15   21   13   25   16   10   13   23   19  ---    7 |    56   50   52   61   53   51   50   59   56  ---    52
  12  |    6   18    8    9    8    5    8    8    6    7    3 |    37   42   33   41   36   37   40   37   37   38    37
  13  |    8   12    8    8    9    5   10    6    7   14    3 |    24   31   23   29   27   25   32   29   29   31    26
  14  |    9   13   12   11   12    5   10    7   12   11    3 |    57   56   56   59   64   58   55   62   60   61    58
  15  |    6    9    7    7    7    6    8    9    7   14    3 |    48   49   49   48   46   49   48   49   47   45    47
  16  |    7   22    6   11   10    5   10    9   12    8    3 |    31   37   32   33   29   31   33   28   33   31    30
  17M |    8   12    6    7    8    3    9   10    8    8    3 |    22   26   19   22   23   22   26   22   21   21    21
  18E |   10   26   12   30   16    9   14   16   14   16    6 |    32   39   35   36   32   35   38   39   34   37    33
  19M |    7   13    6   15   11    3    8    8    6    8    3 |    30   32   29   36   30   29   31   29   27   30    29
  20  |    7   13    7   10    7    4    8    8    7   16    3 |    17   23   19   21   18   20   21   23   24   26    19
  21E |    9    9    8   12   16    5    8    7    9    7    3 |    92   90   91   92   88   91   89   94   94   92    91
  22  |    6   11    3    8    7    3    6    6    9    5    2 |    26   29   26   29   26   26   27   28   26   28    26
  23  |    6    9    7   10    8    7    8    8    8    8    2 |    52   53   51   52   51   53   53   54   55   55    52
  24  |   10   10    6   12   10    5    9    7    6    9    3 |    33   29   32   32   32   33   35   31   31   33    32
  25M |    6   20    7   12   11    3    7    6    8   10    3 |    37   44   38   35   33   36   39   35   38   36    36
  26M |   11   10    8   12    8    3   10    8   10    7    3 |    44   43   43   48   42   42   45   38   44   42    42
  27  |    8    7    7   10    9    4    7    6    8    9    2 |    25   26   25   27   24   25   26   22   25   25    24
 X28  |    7   10    7   11    9    5    9    5   15  ---    3 |    18   22   18   20   18   17   22   18   22  ---    18
  29  |    4   15    6    6    8    4    6    8   10    9    3 |    22   24   19   21   17   21   22   19   25   21    20
  30M |    7   11    8    8    9    4   10    7   10    9    3 |    31   30   32   33   33   31   31   33   28   34    31
  31E |   18   15    6   13   11    6    7    9    9   12    4 |    76   80   76   81   77   77   78   76   81   80    77
  32  |    9   11    6    8    8    4   10    7    9    9    3 |    31   37   31   29   30   31   36   27   32   28    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    8   12   10    5    9    8    8   10      |T   42   44   41   43   41   41   43   42   43   43    41
 WRMS |    8   13    8   12    9    4    9    7    8    9      |NE  31   34   31   33   31   32   34   31   33   33    31
 MEDI |    8   11    7   10    8    4    8    7    8    9      |MD  31   37   32   33   32   31   35   33   32   34    31



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 4.2207   GPS week: 2207   MJD: 59693.0-59699.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |U   11     8    20 |U    8    16    36 |U    9     8    26 |
emr | emr 3030 |U   20    17    34 |U   14    25    59 |U   16    13    47 |
esa | esa 3072 |    16    14    22 |U    8    21    36 |    10    12    27 |
gfz | gfz 3071 |U   11     9    21 |U    9    16    38 |U    8     9    25 |
grg | grg 3068 |U   12    12    25 |U   10    22    34 |     9    11    27 |
igr | igr 3072 |    11     9    17 |     8    17    36 |     8     9    24 |
igs | igs 3071 |    11     9    18 |     8    16    35 |     8     8    24 |
jpl | jpl 3017 |U   12    11    26 |U    9    22    45 |    11    15    34 |
mit | mit 3072 |U   10     8    18 |U    8    14    37 |U    8     7    24 |



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

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

Table 5.2207.0   GPS week: 2207   Day: 0   MJD: 59693.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10     8    21 |  ----  ----  ---- |     8     8    32 |
emr | emr 3072 |    17    17    29 |  ----  ----  ---- |    19    13    66 |
esa | esa 3072 |    15    14    22 |  ----  ----  ---- |    10    13    31 |
gfz | gfz 3072 |    10     8    20 |  ----  ----  ---- |     7     7    29 |
grg | grg 3072 |    10     8    23 |  ----  ----  ---- |     9    10    31 |
igr | igr 3072 |    10     9    17 |  ----  ----  ---- |     7     9    27 |
igs | igs 3072 |    11     9    18 |  ----  ----  ---- |     8     8    31 |
jpl | jpl 3072 |    11    11    23 |  ----  ----  ---- |    11    15    37 |
mit | mit 3072 |    10     8    18 |  ----  ----  ---- |     7     7    28 |

Table 5.2207.1   GPS week: 2207   Day: 1   MJD: 59694.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10     6    20 |  ----  ----  ---- |     8     8    28 |
emr | emr 3072 |    20    13    33 |  ----  ----  ---- |    14    13    44 |
esa | esa 3072 |    15    11    26 |  ----  ----  ---- |     9    11    23 |
gfz | gfz 3072 |    12     7    22 |  ----  ----  ---- |     7     7    26 |
grg | grg 3072 |    12     7    20 |  ----  ----  ---- |     9    12    31 |
igr | igr 3072 |    11     7    19 |  ----  ----  ---- |     7     8    24 |
igs | igs 3072 |    12     7    20 |  ----  ----  ---- |     7     8    25 |
jpl | jpl 3072 |    14     9    28 |  ----  ----  ---- |     9    14    29 |
mit | mit 3072 |    10     7    20 |  ----  ----  ---- |     7     7    27 |

Table 5.2207.2   GPS week: 2207   Day: 2   MJD: 59695.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    11    10    19 |  ----  ----  ---- |     9    10    28 |
emr | emr 2976 |    29    21    31 |  ----  ----  ---- |    17    13    42 |
esa | esa 3072 |    17    17    23 |  ----  ----  ---- |    11    15    25 |
gfz | gfz 3072 |    11     9    19 |  ----  ----  ---- |     9     9    23 |
grg | grg 3072 |    12     9    22 |  ----  ----  ---- |     9    11    28 |
igr | igr 3072 |    11    10    16 |  ----  ----  ---- |     9    11    23 |
igs | igs 3072 |    11    11    19 |  ----  ----  ---- |     9    10    24 |
jpl | jpl 3072 |    12    13    26 |  ----  ----  ---- |    11    19    32 |
mit | mit 3072 |    11     8    19 |  ----  ----  ---- |     8     8    24 |

Table 5.2207.3   GPS week: 2207   Day: 3   MJD: 59696.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10     9    18 |     9    17    37 |     9     8    26 |
emr | emr 2976 |    15    17    35 |    14    29    47 |    17    15    39 |
esa | esa 3072 |    16    15    16 |    10    22    40 |    10    12    28 |
gfz | gfz 3069 |    12    23    32 |     9    16    41 |     7     8    25 |
grg | grg 3066 |    15    34    48 |     9    17    34 |     9    11    30 |
igr | igr 3072 |    11    11    14 |     9    18    39 |     8     9    24 |
igs | igs 3071 |    11    10    15 |     9    17    38 |     8     8    25 |
jpl | jpl 2880 |    12    14    21 |    10    23    54 |    13    14    35 |
mit | mit 3072 |     9     8    17 |     8    15    38 |     8     8    26 |

Table 5.2207.4   GPS week: 2207   Day: 4   MJD: 59697.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    11     8    22 |     7    17    34 |    10     7    24 |
emr | emr 3072 |    16    16    39 |    13    25    58 |    15    11    48 |
esa | esa 3072 |    16    16    23 |     7    21    35 |    10    10    25 |
gfz | gfz 3072 |     9     4    18 |     7    15    35 |    10     7    22 |
grg | grg 3072 |    10     8    21 |     7    16    29 |    11     9    25 |
igr | igr 3072 |    10    10    18 |     7    18    33 |     9     8    23 |
igs | igs 3072 |    10     9    19 |     7    16    33 |     9     7    22 |
jpl | jpl 2880 |    12    12    35 |     9    23    45 |    12    16    34 |
mit | mit 3072 |    10     8    20 |     8    12    34 |     9     6    22 |

Table 5.2207.5   GPS week: 2207   Day: 5   MJD: 59698.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10     7    17 |     9    14    33 |     8     7    22 |
emr | emr 2976 |    18    16    31 |    16    21    61 |    16    11    48 |
esa | esa 3072 |    14    12    22 |     8    19    30 |    10    13    27 |
gfz | gfz 3071 |     9     6    16 |     9    15    34 |     9    13    26 |
grg | grg 3065 |    11     8    16 |     7    13    30 |     9    10    23 |
igr | igr 3072 |     9     8    15 |     8    16    33 |     8     8    22 |
igs | igs 3072 |    10     7    15 |     8    15    32 |     8     7    22 |
jpl | jpl 3072 |    11     9    26 |     9    20    39 |    10    13    33 |
mit | mit 3072 |    10     7    14 |     8    14    35 |     7     5    22 |

Table 5.2207.6   GPS week: 2207   Day: 6   MJD: 59699.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    14    10    22 |     8    17    41 |    10    10    20 |
emr | emr 3072 |    24    20    41 |    14    26    69 |    15    13    41 |
esa | esa 3072 |    18    15    24 |     8    21    37 |    10    14    30 |
gfz | gfz 3071 |    15     9    20 |     9    17    41 |    10    13    22 |
grg | grg 3057 |    13     9    25 |    19    42    43 |    10    11    22 |
igr | igr 3072 |    14    10    17 |     9    17    39 |     8    10    23 |
igs | igs 3072 |    14    10    19 |     8    16    39 |     8    11    22 |
jpl | jpl 3072 |    14    11    28 |     9    21    43 |    11    16    38 |
mit | mit 3072 |    12     8    18 |     8    14    40 |     9    10    22 |


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 6.2207   GPS week: 2207   MJD: 59693.500-59699.500

                                                         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     -11      70     -99      5 |       8     21
            |      20      13      34      52      6 |       2
emr   uuxuu |     -12     -67     423     198      5 |      10     20
            |      18      14      77      60      9 |       3
esa   uuuuu |      16       4      95      95     -2 |      19     27
            |      11      12      46      88      2 |       3
gfz   uuuuu |      -1      -4     119     -49     -8 |      22     29
            |      10      14      98     119      3 |       4
grg   uuuuu |      -8       9      38    -155      0 |       4     19
            |      19      14      28      63      4 |       3
igr   xxxxx |      11       8      39      11      0 |      -2     20
            |       6      13      36      26      2 |       3
irf   xxxxx |      15      20     -49      -9     -5 |       1     20
            |       8       9      17      22      5 |       3
jpl   uuuuu |      12     -18     160      72     -6 |      37     40
            |      13      23      51      36      6 |       2
mit   uuuuu |      15      22    -248     -67     -4 |      27     33
            |      12      13      62     100      6 |       3
ngs   uuuuu |     -33      41    -220      68     -1 |      15     24
            |      20      23      34     180      3 |       3
sio   xxxxx |      38     -10    -135    -147    -14 |      39     45
            |      44      28      71      99      9 |       4


Table 7.2207.0   GPS week: 2207   Day: 0   MJD: 59693.500

                                                         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 |     -15     -23      72    -156      9 |       7     22
emr   uuxuu |      -2     -54     448     247      1 |      12     22
esa   uuuuu |      14      -9     146     186     -3 |      20     29
gfz   uuuuu |     -15     -25     130     139    -13 |      25     32
grg   uuuuu |      10     -16      38    -123      0 |       6     22
igr   xxxxx |      22       0      40      29      0 |      -2     23
irf   xxxxx |      16      30     -72     -37      2 |       0     23
jpl   uuuuu |       6      12     166       3     -2 |      38     40
mit   uuuuu |      13      45    -322    -205      7 |      25     34
ngs   uuuuu |     -21      40    -232     -47     -5 |      15     26
sio   xxxxx |      62      23    -125    -289     -2 |      39     46

Table 7.2207.1   GPS week: 2207   Day: 1   MJD: 59694.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -24       1      83    -124     13 |       9     22
emr   uuxuu |     -20     -76     361     258     -8 |      13     21
esa   uuuuu |      28      -5     102     215      2 |      21     29
gfz   uuuuu |      -8      -7     171      98    -10 |      25     32
grg   uuuuu |      -7      -5      25    -135     -1 |       7     21
igr   xxxxx |      12      20       0      52      2 |      -1     22
irf   xxxxx |       7      20     -73     -12     -5 |       3     20
jpl   uuuuu |      17       7     135      46      1 |      38     40
mit   uuuuu |       3      21    -324    -166     -2 |      28     34
ngs   uuuuu |     -11      39    -232    -162      2 |      16     26
sio   xxxxx |      51     -13     -98    -189     -1 |      41     46

Table 7.2207.2   GPS week: 2207   Day: 2   MJD: 59695.500

                                                         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 |     -15     -16      63     -79      5 |      12     23
emr   uuxuu |     -25     -46     306     215     -1 |      14     21
esa   uuuuu |      17       2     108     159     -3 |      25     31
gfz   uuuuu |       0       7     221     -83     -4 |      27     32
grg   uuuuu |       1      22      49    -170      8 |       9     22
igr   xxxxx |      12       8      24      25      3 |       3     20
irf   xxxxx |       7      10     -35      -2    -14 |       7     18
jpl   uuuuu |      18     -30      80      90    -11 |      41     42
mit   uuuuu |       8       4    -246     -70    -10 |      33     36
ngs   uuuuu |     -19      60    -192      54     -2 |      20     26
sio   xxxxx |     -36     -38    -157    -156    -17 |      46     49

Table 7.2207.3   GPS week: 2207   Day: 3   MJD: 59696.500

                                                         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       5      59     -14      8 |       8     21
emr   uuxuu |     -14     -75     401     233      1 |       9     20
esa   uuuuu |       2      19      68      58     -4 |      20     28
gfz   uuuuu |       0     -19     216    -135    -11 |      22     30
grg   uuuuu |       2      17      35     -97      1 |       4     18
igr   xxxxx |      13      31      46     -24      2 |      -1     19
irf   xxxxx |      14       9     -38     -10     -5 |       1     20
jpl   uuuuu |      26     -43     196      73     -6 |      36     40
mit   uuuuu |       6      12    -205     -59     -6 |      28     34
ngs   uuuuu |     -23      26    -247      37      1 |      15     24
sio   xxxxx |      -3       2    -220    -226    -22 |      41     46

Table 7.2207.4   GPS week: 2207   Day: 4   MJD: 59697.500

                                                         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       1     136     -99      5 |       6     19
emr   uuxuu |     -40     -89     549      84      7 |       8     19
esa   uuuuu |      22      -7       7      19      0 |      17     25
gfz   uuuuu |      -2       6     -60    -158     -4 |      19     27
grg   uuuuu |     -11      18     -11    -137     -3 |       1     16
igr   xxxxx |      10      -7      -5      -1      0 |      -4     18
irf   xxxxx |      15      14     -49     -32     -5 |      -1     20
jpl   uuuuu |      -5     -43     235      98     -2 |      36     39
mit   uuuuu |      11      15    -148     -67     -8 |      26     32
ngs   uuuuu |     -65      79    -242     383     -3 |      13     22
sio   xxxxx |      45      27    -230      -4    -13 |      36     42

Table 7.2207.5   GPS week: 2207   Day: 5   MJD: 59698.500

                                                         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     -22      30     -64      0 |       7     20
emr   uuxuu |       5     -68     453     174     14 |       8     20
esa   uuuuu |      27      18     100       5     -2 |      18     26
gfz   uuuuu |      -1      -3      68    -139     -6 |      18     26
grg   uuuuu |     -50      12      47    -289     -1 |       2     16
igr   xxxxx |       7       5      74       6     -1 |      -3     18
irf   xxxxx |      30      32     -49       1     -6 |      -1     20
jpl   uuuuu |      26     -21     177     103    -16 |      36     40
mit   uuuuu |      35      31    -247       5     -9 |      26     32
ngs   uuuuu |     -39      35    -242     214      0 |      14     22
sio   xxxxx |      50     -36     -63    -117    -22 |      37     43

Table 7.2207.6   GPS week: 2207   Day: 6   MJD: 59699.500

                                                         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     -20      44    -156     -4 |       7     20
emr   uuxuu |      11     -64     444     173     19 |       8     19
esa   uuuuu |       2      10     135      25     -3 |      16     25
gfz   uuuuu |      16      11      88     -66     -9 |      15     24
grg   uuuuu |      -4      12      82    -138     -3 |       0     17
igr   xxxxx |       2       0      91      -8     -2 |      -5     20
irf   xxxxx |      14      22     -29      30      1 |      -4     21
jpl   uuuuu |      -1      -5     127      88     -7 |      33     38
mit   uuuuu |      27      23    -245      94     -3 |      24     31
ngs   uuuuu |     -56       7    -156      -5     -3 |      11     21
sio   xxxxx |      98     -34     -53     -49    -23 |      33     41


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