[IGSREPORT-21420] Wk 1709 IGS Final Orbits [Resubmission]

IGS ACC igs.acc at noaa.gov
Mon Dec 17 07:51:42 PST 2012


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1709   (Oct 07, 2012 - Oct 13, 2012)

Contacts: J. Griffiths (jake.griffiths at noaa.gov)
          K. Choi (kevin.choi at noaa.gov)


COMBINATION STRATEGY:
---------------------

Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

Each centre satellite clock corrections are first transformed to a common 
reference. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. Ephemerides and clock corrections are then combined
as weighted averages computed over all centres. Each centre is given a
position weight and a clock weight. The position weights are computed from
each centre's absolute deviation to the unweighted average orbit after the
estimation of a 7-parameter Helmert transformation. The clock weights are
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. All the above estimations are performed using the
L1-norm robust scheme.

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data at each SP3 epoch. This is
primarily intended for testing clock solution precision as well as the
orbit/clock consistency.

 Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c  [distance unit],

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility with broadcast GPS time, the IGS clocks use
the linear combination of phase-smoothed P1 and P2 pseudorange data to remove
the 1st order ionospheric delay, with no other delay calibrations applied.


SOFTWARE:
---------

The weighted average software used was originally developed by T. Springer
and G. Beutler in 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

  Beutler G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
  Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

  Kouba J., Mireault Y. and F. Lahaye, 1995, 1994 IGS Orbit/Clock Combination
  and Evaluation, Appendix I of the Analysis Coordinator Report, International
  GPS Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

  Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
  pp. 45-76.

  Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
  pp. 55-100.


PRODUCTS GENERATED:
-------------------

The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite over each daily arc. Note that each file
contains all the satellites that appear in any of the centre ephemeris files.
If a satellite or centre was excluded from combination, a note in the REMARKS
section of this report will identify the exclusion and the reason.

The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions. AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 10 days, i.e. up to 5 days prior to the last
non-predicted day of Bulletin A. AC LOD biases are removed and the new AC
bias-free LODs are used to compute a weighted IGS LOD which in turn is
integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as Bulletin
A fifth day prior to its last non-predicted day. Both IGS LOD and UT1-UTC
values are printed in the IGS Final erp file.



The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

igs1709[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1709[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1709[0-6].cls  IGS GPS clock combination summary report.
igs17097.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17097.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.

 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   | MIZU SUTM
                0  |  ESA   | PALM PALM
                0  |  GFZ   | BOGT IISC KERG LPGS MATE
                0  |  GRG   | THTI LHAZ LPGS NYAL THTI
                0  |  MIT   | 27 27
                1  |  COD   | SOFI HERT HNPT HOB2 JOZ2 MIZU SOFI SUTM
                1  |  EMR   | MCM4 NYAL QAQ1 SYOG CRO1 HOB2 MCM4 NYAL QAQ1 SYOG
                1  |  ESA   | HOB2 NTUS SCH2 HOB2 NTUS SANT SCH2 TIXI
                1  |  GFZ   | BOGT CHUR HOB2 LPGS NTUS SCH2
                1  |  GRG   | CHUR CRO1 MAW1 THTI CHUR CRO1 LHAZ MAC1 MAW1 THTI
                1  |  JPL   | 8 FLIN VESL
                1  |  MIT   | 27 27 MAC1 MAC1
                2  |  COD   | CAGZ KOUC CAGZ CHUR KOUC MDVJ MIZU SUTM
                2  |  ESA   | SCH2 ZECK MDVJ SCH2 TIXI ZECK
                2  |  GFZ   | POTS RIOP URUM ZECK
                2  |  GRG   | CHUR LPGS SCH2 WROC CHUR LHAZ MAC1 OHI2 QAQ1 TIXI
                2  |  GRG   | WROC
                2  |  MIT   | 4 19 4 19 MAC1 NICO QAQ1 BOR1 INVK MAC1 QAQ1
                3  |  COD   | HNPT FLRS HNPT MIZU SOFI
                3  |  EMR   | PRDS
                3  |  ESA   | ALRT LPGS ALRT SCUB
                3  |  GFZ   | BOGT HOB2 KARR LPGS URUM
                3  |  GRG   | 13 13 WROC HOB2 LHAZ LPGS POTS
                3  |  JPL   | 8 27 HOB2
                3  |  MIT   | 27 27 DAV1 MAW1 MAW1
                4  |  ALL   | 24
                4  |  COD   | KOUC FLRS JOZ2 KOUC SOFI
                4  |  EMR   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                4  |  EMR   | 21 22 23 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8
                4  |  EMR   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26
                4  |  EMR   | 27 28 29 30 31 32 CHUR DRAO HOB2 KOKB LPGS MCM4 MDO1
                4  |  EMR   | QAQ1 SCH2 STJO SYOG THTI THU3 USN3 WHIT WSRT YEBE
                4  |  EMR   | YELL ALGO CHUR CRO1 DRAO HOB2 IRKT KERG KOKB LPGS
                4  |  EMR   | MCM4 MDO1 NRC1 QAQ1 SCH2 STJO SYOG THTI THU3 TIDB
                4  |  EMR   | USN3 WHIT WILL WSRT YEBE YELL
                4  |  ESA   | RAMO
                4  |  GFZ   | 9 27 ADIS BOGT SANT YELL
                4  |  GRG   | CHPI HNPT LPGS RAMO
                4  |  MIT   | 17 27 17 27 JOZ2
                5  |  COD   | 30 30 KOUC DAV1 KOUC SUTM
                5  |  EMR   | HARB HARB LPGS MATE YELL
                5  |  ESA   | 30
                5  |  GFZ   | 30 ADIS BOGT DAV1 LHAZ LPGS MATE SSIA URUM WIND
                5  |  GRG   | GLSV GLSV KARR NRMD TIXI
                5  |  JPL   | 30
                5  |  MIT   | 27 27 DAV1 SOFI TWTF BAKO DAV1 SOFI TWTF
                6  |  COD   | 21 21 KOUC YELL HOFN KOUC MIZU NRMD SUTM YELL
                6  |  ESA   | CHUR THTI URUM CHUR SCUB THTI TIXI WIND
                6  |  GFZ   | BOGT BRMU KELY LHAZ LPGS SANT URUM
                6  |  GRG   | HOFN LPGS SOFI WSRT KOUC LPGS MAC1 NRIL SOFI URUM
                6  |  GRG   | WSRT
                6  |  JPL   | 11 21
                6  |  MIT   | 27 27 MAC1 SOFI BOR1 FAIR GMAS MAC1

 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  |  JPL   |  24
                5  |  GRG   |  24
                6  |  GRG   |  24  27

 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 G24 |    |  1 |    |    |    |  2 |  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.

 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 |     .0    1.8     .1     -43      9    -10    -.38
       EMR  |   0 |    3.4    2.1   18.8       2      1     -1    -.08
       ESA  |   0 |     .8    6.0    3.6      89   -100    106    -.17
       GFZ  |   0 |    -.5    1.1     .1     -24    -18    -15    -.06
       GRG  |   0 |    1.2    2.4   22.2     -11     36    -36    -.42
       JPL  |   0 |   -3.2    6.2   23.1     -32     13     52     .16
       MIT  |   0 |    8.8    7.4   11.1      -2      1    -26    -.11
       NGS  |   0 |   -1.3   -5.9   15.1    -123     -6    -29     .24

       COD  |   1 |     .1    1.5     .1     -34     -2      1    -.49
       EMR  |   1 |    2.3    2.8   18.7       6      6      9    -.25
       ESA  |   1 |   -1.7    3.3    3.9      72    -30     95    -.19
       GFZ  |   1 |    -.6     .6    -.2     -38    -33    -21    -.02
       GRG  |   1 |     .3    5.3   20.7     -17     13      6    -.14
       JPL  |   1 |   -4.3    6.2   22.9     -26      1     58    -.19
       MIT  |   1 |    5.7    5.4   10.9      -2      2    -22    -.17
       NGS  |   1 |    1.2   -7.7   18.2    -152    -26    -14     .27

       COD  |   2 |    -.1     .9     .9     -31     18     -3    -.48
       EMR  |   2 |    -.2    7.3   13.9       3     -2     -9    -.14
       ESA  |   2 |    5.0    5.8    7.5     109   -117    109    -.30
       GFZ  |   2 |   -1.0     .6    -.2     -23    -11    -41    -.22
       GRG  |   2 |     .0    -.5   22.0     -29     30    -22    -.07
       JPL  |   2 |   -1.8    8.0   22.5     -21     20      1     .09
       MIT  |   2 |    4.8    6.5    8.6       6      3    -18    -.24
       NGS  |   2 |   -1.1    -.3   13.4     -86    -10     -8     .06

       COD  |   3 |     .2    1.4     .3     -51     -5    -20    -.31
       EMR  |   3 |    -.8    7.8    6.9       3      2     -9    -.02
       ESA  |   3 |    1.5    7.3   -1.7     131   -151    106    -.27
       GFZ  |   3 |   -1.0     .7    -.6     -38    -22    -36    -.19
       GRG  |   3 |   -1.7    3.8   13.7     -21     27    -18    -.20
       JPL  |   3 |   -3.5   11.2   12.1       0      7      1     .17
       MIT  |   3 |    -.8   10.1    9.9       5      4    -26    -.15
       NGS  |   3 |    1.4   -2.2   13.9     -90    -19      5     .24

       COD  |   4 |    -.3     .9     .3     -60     -6     -3    -.46
       EMR  |   4 |    -.6   10.6   15.0      -3     27    -36    -.05
       ESA  |   4 |    1.0   10.0    1.4     147   -101     75    -.23
       GFZ  |   4 |    -.9     .4    -.3     -40    -20    -37    -.22
       GRG  |   4 |    1.7    2.3   13.3     -15     40     -4    -.06
       JPL  |   4 |   -6.1    9.4   22.3     -30    -29     12     .33
       MIT  |   4 |    -.3    9.9    5.9       4     -2    -18    -.07
       NGS  |   4 |    3.8    -.4   15.4     -94    -23     22     .21

       COD  |   5 |    -.3     .9     .7     -55     -4     15    -.44
       EMR  |   5 |    2.5    2.6   14.4      -8     33    -32    -.04
       ESA  |   5 |    4.0    5.0    -.6     106   -174    130    -.25
       GFZ  |   5 |   -1.3     .8     .0     -52    -29    -26    -.20
       GRG  |   5 |    3.7    1.9   15.8     -44     44    -15    -.06
       JPL  |   5 |   -3.7    7.9   17.4      -7     -4     -4     .0 
       MIT  |   5 |    2.7    9.2   10.1       2      3    -18    -.17
       NGS  |   5 |   -3.6   -1.8   20.0    -132      3    -52     .08

       COD  |   6 |    -.6    1.0     .4     -49      5      2    -.47
       EMR  |   6 |   -1.6    1.2   14.2     -12     30    -41    -.04
       ESA  |   6 |     .4    9.2    -.7     166    -93     84    -.43
       GFZ  |   6 |   -1.6     .3     .4     -57    -24    -28    -.25
       GRG  |   6 |    1.2    -.3   18.8     -17     49    -43     .01
       JPL  |   6 |   -2.3   10.9   16.1     -49    -34     44    -.09
       MIT  |   6 |    2.2    6.9    9.3       8     -1    -18    -.09
       NGS  |   6 |     .5   -7.3   10.0     -81    -11    -14     .10


10. As inidicated in the previous remarks, the IGS final orbits are aligned to the
    IGS reference frame by pre-aligning each AC orbit with the 3 corresponding
    SINEX rotations. This approach began 27-Feb-2000 (GPS Week 1051-0; MJD 51601).
    Starting sometime prior to 19-Aug-2012 (GPS Week 1702; MJD=56158), the orbit
    combination procedures used an incorrect sign convention to apply the SINEX
    RX and RY values to the AC orbits.
    
    Also starting 27-Feb-2000 (GPS  Week 1051-0; MJD 51601), the AC orbits were
    pre-aligned using rotations derived from differences between AC and IGS
    combined x and y polar motion. These ERP rotations were intended to
    approximate day-to-day variations of the AC orbital frames when only weekly
    averaged AC TRF rotations were available (For more details, see IGSMAIL
    #2750). With the change to daily SINEX integrations starting 19-Aug-2012, the
    ERP rotations are no longer needed/applied.

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.


ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1709.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1709.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 2.1709.[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 3.1709.[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 5.1709.0-6). 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 1709 summary.                       (Oct 07, 2012 - Oct 13, 2012)

Table 1.1709.a   GPS week: 1709   MJD: 56207.000-56213.000

         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  255|   -1     0    -2    13    22     7  -.45   11   10 |    -395    -538     20     83
        |    0     1     2    22    20    16   .04           |     453     868
emr   79|   -1    -1     3   -18     8    -4   .31   16   16 |    1823    1064     13     93
        |    1     1     1    31     8    11   .02           |     782    1626
esa  178|    0     0     1    91   -26   -19   .06    7    7 |   -1209    1465     13    144
        |    0     0     0    25    40    11   .02           |    1790    1419
gfz  189|    0     0    -2   -68   -68    13  -.41   13   12 |    -335     312     22    142
        |    0     0     0    59    48    13   .03           |     355     660
grg  120|    2     1     7     0    18     3   .45   15   14 |    -210     170     13    148
        |    1     1     2    13    19    18   .03           |     329     606
igr  n/a|    0     0    -2   -27    36   -30  -.17    4    4 |    3847     914     19     98
        |    0     0     0    25    14    14   .03           |    1396     778
jpl   80|    0    -1    -4     0    14    20   .40   14   14 |    2781     537     19    123
        |    1     0     2    27    18     8   .04           |     576     742
mit  240|    0     0    -3   -29     1    -5  -.21    6    6 |    -174      67     21    220
        |    0     0     1    15    25    14   .02           |     354     546
ngs  242|    0     0     4   -64    40    20   .31   10    9 |    -428    -531   1861   3490
        |    0     0     3    38    37    17   .04           |     351     658
sio  262|   -1     2    -5   -41    28   -44  -.45   21   20 |     ---     ---    ---    ---
        |    1     1     0    22    18     9   .05           |     ---     ---


Table 1.1709.b   GPS week : 1709   MJD: 56207.000-56213.000   

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: mm.

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    4    4    4    4    5    4    5 |
   2  |    5    4    4    4    4    4    4 |
   3  |    3    4    4    3    4    3    3 |
   4  |    4    3    4    3    4    3    3 |
   5  |    4    4    4    4    5    4    4 |
   6  |    4    3    4    3    4    3    3 |
   7  |    5    5    4    4    5    4    4 |
   8  |    6    5    5    5    6    5    4 |
   9  |    5    4    3    3    4    4    4 |
  10  |    4    4    4    3    4    4    4 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    4    4    5    4    5 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    4    4    3    4    4    4 |
  15  |    5    5    5    4    5    4    4 |
  16  |    5    4    4    5    5    4    4 |
  17  |    5    4    4    4    5    4    4 |
  18  |    4    4    4    4    4    4    4 |
  19  |    4    4    4    4    4    4    4 |
  20  |    4    4    4    4    4    4    4 |
  21  |    4    4    4    4    4    4    5 |
  22  |    4    4    4    4    5    4    4 |
  23  |    4    4    4    4    4    4    4 |
  24  |  ---    0    0    0   47    0    0 |
  25  |    5    5    5    5    5    5    5 |
  26  |    3    3    3    3    4    3    3 |
  27  |    5    6    5    6    6    6    5 |
  28  |    5    4    4    4    5    4    4 |
  29  |    5    4    4    4    5    4    5 |
  30  |    4    3    4    4    4    5    4 |
  31  |    5    4    4    4    5    5    5 |
  32  |    4    4    4    4    5    4    4 |



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1709.0   GPS week: 1709   Day: 0   MJD: 56207.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  256|    0     3    -6    27   -11     4  -.47   12   11 |    -411    -876     22     85
emr   80|    0    -3     4   -21     3    -3   .32   17   17 |     647     825     16    112
esa  178|    0     0     2    64   -29   -19   .08    8    8 |   -2454    3331     13    161
gfz  193|    0     1    -1    -3   -24    39  -.42   12   12 |     236    -890     21    138
grg  120|    3     0     4     0    41   -20   .46   15   14 |     237    -364     13    157
igr  n/a|    0     0    -2   -24    28   -37  -.13    5    5 |    1423    1452     19     91
jpl   80|    0    -1    -2   -12    -4    27   .43   15   14 |    1794     926     20    127
mit  240|    0     0    -2   -16    14   -16  -.20    6    6 |    -636     454     20    199
ngs  243|    0     1     4   -65    30    12   .30   11    9 |    -451    -788   1775   3777
sio  263|   -1     0    -6   -32    38   -23  -.40   21   20 |     ---     ---    ---    ---

Table 2.1709.1   GPS week: 1709   Day: 1   MJD: 56208.000                            

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  258|    0     0    -4     8    18    30  -.41   12   12 |    -713       9     20     70
emr   78|    0    -2     3    20    21   -28   .31   16   16 |    1417    1180     16     98
esa  178|    0     0     2    67    47   -17   .06    7    7 |   -1355    1571     13    125
gfz  193|    0     1    -2   -84   -85     8  -.39   12   12 |    -318     668     21    142
grg  119|    0     1     4    -1   -16    -2   .46   15   14 |    -479     652     13    140
igr  n/a|    0     0    -2    -4    37   -51  -.17    4    4 |    2884    1384     20     95
jpl   80|    1     0    -4    20    15    30   .44   14   14 |    2749     800     21    151
mit  240|    0     0    -4   -28   -28    -2  -.20    5    5 |    -325     658     24    202
ngs  245|    0     0     9   -31    15     6   .32   11    9 |    -722     -58   1675   3272
sio  246|    1     2    -5    -8    19   -40  -.46   20   16 |     ---     ---    ---    ---

Table 2.1709.2   GPS week: 1709   Day: 2   MJD: 56209.000                            

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  251|   -2     0    -4    45    30   -21  -.40   10   10 |    -205   -1081     21    108
emr   80|   -2    -1     5     3     4    -7   .31   17   17 |    2125      25     15    126
esa  178|    0     0     1    75   -34   -13   .07    7    7 |   -2312    2280     14    139
gfz  187|    0     0    -4  -103   -45    -3  -.37   12   12 |    -406     101     23    151
grg  118|    3     3    12    -1    10    -9   .49   14   13 |      24    -591     13    155
igr  n/a|    0     0    -2    -6    26   -39  -.17    4    4 |    3687     483     19     97
jpl   80|    0    -1    -5    29    13    26   .42   15   15 |    3024    -113     18    123
mit  240|    0     0    -2   -47    -7    18  -.21    6    6 |     -61       3     22    216
ngs  240|    0     0     1   -11    28    10   .29   10    9 |    -265   -1044   1788   3349
sio  265|    0     2    -5   -47    37   -50  -.47   19   19 |     ---     ---    ---    ---

Table 2.1709.3   GPS week: 1709   Day: 3   MJD: 56210.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  256|   -1     0    -1   -24     6    23  -.44   11   10 |     325   -1766     19     83
emr   80|   -1    -2     1   -51     7    11   .33   15   15 |    2241     882     14     98
esa  178|    1     0     0    85   -54   -20   .04    7    7 |    2255    -400     12    139
gfz  189|    0     0    -2     0    -3    14  -.43   10   10 |    -438     655     21    154
grg  118|    2     1     6    23    18    29   .44   13   13 |    -493     718     13    138
igr  n/a|    0     0    -1   -48    17   -15  -.20    4    4 |    4263     952     19    120
jpl   80|    0     0    -2    -6    31    16   .40   14   13 |    2990     552     18    115
mit  240|    0     0    -2   -24    32   -26  -.21    6    6 |     124       8     20    231
ngs  243|    0     0     2   -75    -6    31   .29    9    8 |     222   -1521   2135   3709
sio  259|   -2     1    -6   -38    54   -45  -.48   20   19 |     ---     ---    ---    ---

Table 2.1709.4   GPS week: 1709   Day: 4   MJD: 56211.000                            

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  258|    0     0    -1    11    47     0  -.48   11   11 |     -72    -599     18     77
emr   80|    0     0     3   -31    11     1   .28   15   15 |    1321    4407      0      0
esa  178|    0    -1     0   101    -4   -43   .07    7    7 |   -2965    2696     14    151
gfz  189|    0     0    -2   -21  -145    19  -.46   18   18 |    -725     998     26    143
grg  120|    2     2     9     6    10    19   .41   14   14 |    -396     246     14    121
igr  n/a|    0     0    -2   -73    45   -21  -.20    4    4 |    4122    1661     19     89
jpl   80|   -1    -2    -8   -33    12    21   .32   15   15 |    2428    1385     18    107
mit  240|    0     0    -4    -6   -35    -8  -.24    7    7 |    -169    -228     19    227
ngs  243|    0     1     7  -102    69    50   .29   10    9 |    -312    -294   1856   3597
sio  265|   -3     3    -5   -34    -2   -49  -.53   21   20 |     ---     ---    ---    ---

Table 2.1709.5   GPS week: 1709   Day: 5   MJD: 56212.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  256|   -1     0     0    26    44     4  -.50    9    9 |   -1031     978     20     75
emr   80|    0    -1     2    12    17    -3   .32   15   15 |    1928     941     15    108
esa  178|    1     0     1   110   -82   -14   .05    6    6 |     -88    -166     11    136
gfz  189|   -1     0    -2  -141   -97     9  -.36   13   12 |    -712     783     21    135
grg  118|    4     0     6   -21    25    17   .43   15   15 |    -505     894     15    173
igr  n/a|    0     0    -3    -8    63   -12  -.17    5    5 |    4762    1092     19     95
jpl   80|    0     0    -6    34    42     4   .42   14   14 |    2812     991     17    115
mit  240|    0     0    -4   -47    11    -9  -.22    7    7 |    -523     511     23    231
ngs  245|    0     0     5  -122   107    29   .32   10    9 |    -773     473   2160   3070
sio  269|   -3     3    -5   -46    36   -52  -.43   21   21 |     ---     ---    ---    ---

Table 2.1709.6   GPS week: 1709   Day: 6   MJD: 56213.000                            

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  254|   -1     0    -1    -2    22     9  -.49    9    9 |    -659    -433     20     86
emr   80|   -3     0     3   -58    -3     0   .33   16   16 |    3085    -809     16    114
esa  178|    1     0     2   136   -25    -6   .03    6    6 |   -1547     943     14    159
gfz  189|   -1    -1    -2  -124   -78     3  -.40   12   12 |      17    -126     21    135
grg  129|    1     0     8    -7    38   -11   .48   15   15 |     141    -359     15    153
igr  n/a|    0     0    -1   -24    37   -39  -.16    4    4 |    5792    -620     19    101
jpl   80|    0     0    -2   -28    -8    17   .40   14   14 |    3672    -782     21    126
mit  240|    0     0    -2   -39    22     5  -.19    7    6 |     368    -935     23    235
ngs  241|    1     0     0   -46    41     2   .39   11   10 |    -696    -485   1638   3661
sio  269|    0     3    -3   -83    19   -48  -.41   23   23 |     ---     ---    ---    ---

       
       
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 3.1709.0   GPS week: 1709   Day: 0   MJD: 56207.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   14   21    8   10   13    6   12    7   11   13    4 |    27   22   22   21   29   20   24   24   28   19    22
   2  |   10   16    9   18   14    5   15    7   11   25    4 |    19   25   20   11   21   15   23   15   19   31    15
   3  |    8   13    6   10   13    4    8    6   12   23    3 |    25   27   23   28   30   24   29   23   22   26    23
   4  |   14   12    7    7   11    5   10    5    9   26    3 |    32   32   30   34   30   30   35   32   33   28    30
   5  |    9   17    7   10   18    5   16    5   10   13    4 |    20   33   19   22   32   22   31   23   27   20    22
   6  |   11   12    5   12   10    3    8    7   13   20    3 |    40   38   34   41   39   36   40   36   32   33    35
   7  |   21   21    6   10   15    3   19    8    9   14    5 |    25   27   22   22   31   19   29   18   29   20    21
   8E |   20   23   11   12   18    7   17   13   16   26    6 |   133  129  131  131  128  126  133  123  133  129   129
   9  |   10   13    8   13   18    7   11    6   17   13    4 |    22   26   25   22   31   23   25   22   27   22    22
  10  |   10   14    7   12   12    4   13    5    8   27    3 |    65   65   63   61   64   61   68   62   62   69    63
  11  |   11   12    5   10   16    5   10    6   10   14    3 |    20   24   18   22   29   17   24   17   13   22    16
  12  |   10   20    9   13   19    6   15    7    9   20    4 |    22   27   22   22   24   19   22   19   24   21    19
  13  |   10   16    8   11   17    4   13    5   12   18    4 |    28   35   32   33   44   30   38   27   32   24    30
  14  |   11   13    7   13   14    4   13    6   11   16    4 |    27   34   35   36   40   30   35   31   35   22    32
  15  |   10   19   10   11   16    6   19    6   10   27    4 |    24   29   26   22   34   22   27   22   26   28    22
  16  |   11   17    6   13   16    3   18    7   11   21    4 |    22   28   21   25   28   20   25   21   25   18    21
  17  |   14   17   10   11   14    3   16    5   13   27    4 |    26   32   25   27   30   25   31   25   30   28    25
  18  |    7   16    9   13   17    5   19    6    8   18    4 |    32   38   31   24   40   31   39   33   35   34    31
  19  |   14   16    7   11   11    4   13    5   14   30    4 |    28   28   22   24   21   21   27   22   22   26    21
  20  |   11   16    6   13   15    6   15    8    9   18    4 |    25   29   21   18   30   21   30   22   25   32    22
  21  |   10    9    7    8   19    4   12    5    9   17    3 |    16   29   23   17   36   17   22   18   21   13    19
  22  |   11   15    6   13   17    4   17    5   11   16    4 |    27   34   30   21   40   26   36   27   35   28    28
  23  |    9   17    7   13   12    4   16    4   12   24    4 |    23   29   23   26   29   22   30   20   21   19    21
  25  |   13   26   10   13   19    4   14    7   13   19    5 |    24   26   21   19   27   19   31   19   28   22    19
  26  |   11   11    8    8   13    5    8    4    9   11    3 |    21   22   23   22   30   23   22   22   23   21    21
 X27  |   13   13   14   13   18   10   16    7  ---  ---    5 |    26   25   29   22  580   22   27   21  ---  ---    22
  28  |   11   17    7   15   16    4   18    5    8   15    4 |    19   27   24   27   34   21   26   22   25   18    22
  29  |   14   16    9   12   14    5   18    7   11   35    4 |    28   34   26   24   27   26   34   25   29   27    25
  30  |   10   10    8   12   13    4   13    6   13   13    3 |    46   45   46   46   42   44   38   46   46   44    44
  31  |   11   23    8   12   17    5   21    9   11   14    5 |    20   28   19   23   28   19   26   18   27   16    18
  32  |   10   20    7   11   14    5   11    5    7   23    3 |    41   39   36   36   32   35   41   36   36   40    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   17    8   12   15    5   15    6   11   21      |T   30   34   30   29   53   28   34   28   32   30    28
 WRMS |   11   17    8   12   14    5   14    6    9   20      |NE  27   31   27   26   51   25   31   25   28   26    25
 MEDI |   11   16    7   12   15    5   15    6   11   18      |MD  25   29   24   24   31   22   30   22   27   24    22

Table 3.1709.1   GPS week: 1709   Day: 1   MJD: 56208.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   12   23    8   10   14    6   13    5   12   14    4 |    23   26   21   22   23   20   24   20   28   17    19
   2  |   10   16    4   12   17    3   13    4   11   24    3 |    18   22   16   16   19   15   20   16   21   31    14
   3  |   11    8    4   12   15    3   10    7   10   19    3 |    17   22   17   20   25   16   20   17   23   24    16
   4  |    9   13    7    7   11    3   10    4   11   25    3 |    31   28   27   32   24   26   30   28   29   27    27
   5  |   13   16    7   11   17    4   17    5    9   13    4 |    26   33   25   30   33   24   30   28   29   25    26
   6  |   11    7    4   15   10    2    8    5    9   16    3 |    33   36   32   34   36   32   34   31   34   36    31
   7  |   14   19    7   12   14    4   19    5   11   14    4 |    19   26   17   18   26   15   26   16   23   17    16
   8E |   14   23    7   16   17    7   14    8   16   26    5 |    97  103   99   98   98   98  101  100   97   98    98
   9  |   12   13    9   13   13    5   10    5   13   14    4 |    20   23   21   21   24   20   19   22   28   19    19
  10  |    9   13    6   12   13    3   13    4    9   30    3 |    67   72   66   69   66   67   71   69   68   83    68
  11  |    9   14    8   10   20    4   10    6   15   12    4 |    20   22   19   21   26   16   21   16   22   20    15
  12  |   17   18   11   13   16    5   17    8   13   18    5 |    27   24   17   22   23   16   23   17   24   20    17
  13  |   13   16    6   11   16    3   14    4    9   25    3 |    22   32   28   26   37   23   33   22   32   21    25
  14  |   12   13    6   14   14    4   11    4    8   14    3 |    24   28   25   22   29   19   29   19   27   18    23
  15  |   12   18    9   12   11    9   20    5   13   25    4 |    21   29   25   22   27   19   26   20   26   27    20
  16  |   13   17    7   13   14    3   18    6    7   21    4 |    24   28   22   22   28   20   27   21   25   17    21
  17  |   11   18    7   10   14    4   17    5   10   26    4 |    23   28   23   23   24   20   28   21   26   19    21
  18  |    9   11    7   14   17    4   13    6    9   12    3 |    31   35   32   25   38   29   37   30   32   30    30
  19  |   12   14    7    8   11    3   14    5   11   28    3 |    20   22   18   21   17   17   23   18   23   21    16
  20  |   12   17    7   12   15    3   16    5    8   16    4 |    29   29   26   23   30   25   30   26   35   24    25
  21  |    9   13    7   10   23    5   11    7    8   14    4 |    12   21   14   14   32   11   19   12   18   14    13
  22  |   10   12    5   14   19    3   12    4   10   11    3 |    23   30   29   23   39   26   35   27   31   26    27
  23  |   11   15    8   12   12    5   16    6   12   26    4 |    20   25   22   22   24   18   27   17   26   16    19
 X24  |    7  ---  ---  ---  --- 7975  ---  ---  ---  ---    0 |   ---  ---  ---  ---  --- 9999  ---  ---  ---  ---     1
  25  |   18   26    9    8   16    6   14    4    8   18    4 |    24   22   18   16   28   15   27   16   20   19    16
  26  |   12   10    4    9   10    4   11    4   11   14    3 |    24   24   23   25   26   22   22   23   25   27    21
 X27  |   20   17   10   12  ---   10   12    6  ---  ---    5 |    33   25   28   24  ---   22   22   22  ---  ---    22
  28  |   10   18    7   14   14    4   13    7   10   13    4 |    20   30   22   22   32   19   25   19   27   18    20
  29  |   13   16    6   11   13    4   18    5   12   31    4 |    19   25   18   19   19   16   25   19   22   23    18
  30  |    9   12    6   12   12    3   10    5   11   14    3 |    36   39   40   33   40   36   38   34   46   35    37
  31  |   11   21    6   12   15    5   19    5   11   15    4 |    20   27   19   19   29   17   26   17   26   18    18
  32  |   11   18    7   12   14    3   13    7    6   22    3 |    45   48   44   44   45   44   51   44   45   49    43
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   16    7   12   15    4   14    5   11   20      |T   28   31   27   27   32   25   31   26   31   27    25
 WRMS |   12   16    7   11   14    4   14    5    9   16      |NE  25   29   25   25   29   22   28   23   29   25    22
 MEDI |   11   16    7   12   14    4   13    5   10   16      |MD  23   28   23   22   28   20   27   21   26   21    20

Table 3.1709.2   GPS week: 1709   Day: 2   MJD: 56209.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   11   21    7   14   13    7   14    8    9   15    4 |    23   24   19   21   28   22   28   23   24   16    18
   2  |    9   17    8   12   14    5   15    6    9   23    4 |    19   24   14   14   26   16   22   15   24   29    14
   3  |    9   11    5   12   12    2   11    7   13   20    3 |    22   22   22   23   25   20   27   20   26   25    20
   4  |   11   15    8    9   13    3   12    5    9   22    3 |    27   30   26   29   24   25   33   26   31   27    25
   5  |    7   17    8   10   14    4   18    9   11   12    4 |    26   32   27   24   36   25   34   27   34   24    26
   6  |   10   12    7   12    8    3   10    5   16   18    3 |    28   28   30   27   29   26   34   28   29   26    27
   7  |   11   18    7   13   13    4   17    7   11   14    4 |    20   23   15   16   27   12   24   15   20   14    14
   8E |   12   22    7   13   16    6   18    6   10   24    4 |    94  100   93   97   97   95   98   94   93   97    94
   9  |    9   11    8   12   10    4   12    6    7   14    3 |    24   27   21   25   32   25   28   27   26   26    23
  10  |    9   14    8   12   22    5   13    4    9   26    4 |    97  101   93   94   93   95  103   95  102  105    95
  11  |    8   12    7   11   15    5    8    7    9   10    3 |    28   28   25   26   30   25   31   26   27   26    23
  12  |   12   20    7   10   15    6   16    6   12   15    4 |    30   34   26   31   28   24   32   26   28   26    25
  13  |    7   15    6   11   14    4   14    4    9   21    3 |    22   30   26   22   37   21   32   20   24   19    23
  14  |    9   15    5   12   13    2   12    5    8   14    3 |    24   35   30   26   36   23   33   25   29   21    26
  15  |   12   17    8   12    8    3   21    6   12   28    4 |    28   29   24   23   33   24   29   25   27   30    24
  16  |    9   20    6   12   13    2   18    6   10   20    4 |    23   30   21   22   30   19   28   20   25   19    20
  17  |   12   17    9   10    9    3   18    6    9   25    4 |    23   30   22   24   26   22   30   24   23   22    21
  18  |    8   16    9   14   16    5   14    7    8   13    4 |    33   38   31   22   37   28   39   25   36   26    29
  19  |   11   15    7    9   10    3   13    7   13   27    3 |    23   23   18   24   18   17   25   17   17   14    15
  20  |   10   17    7   11   13    3   15    6    8   13    3 |    36   35   27   25   34   30   38   29   38   35    28
  21  |   10   11    6    9   18    4   12    5   12   16    3 |    18   25   16   18   31   15   23   16   27   15    16
  22  |   10   15    5   11   19    4   14    5    9   10    4 |    35   42   36   30   47   34   46   33   44   32    35
  23  |    9   16    9   11   13    4   17    5   11   26    4 |    20   24   20   15   24   16   26   15   19   15    16
 X24  |    7  ---  ---  ---  ---  166  ---  ---  ---  ---    0 |   ---  ---  ---  ---  --- 9999  ---  ---  ---  ---     1
  25  |   14   29    8    9   14    5   16    8    6   17    4 |    23   32   22   21   29   19   32   21   23   23    20
  26  |    8   10    6   11   11    3    9    5   10   12    3 |    23   29   25   27   32   27   30   28   26   30    24
 X27  |   11   13   12   14  ---    8   12    8  ---  ---    5 |    24   29   21   26  ---   23   31   27  ---  ---    23
  28  |    9   19    9   14   13    2   15    6    7   14    4 |    19   31   24   26   33   22   29   24   25   20    22
  29  |   14   17    5   11   10    4   17    6    8   32    4 |    20   26   16   20   20   17   28   18   23   17    16
  30  |   10   11    7   10   12    3   11    5   12   13    3 |    27   29   26   25   32   24   31   24   33   25    25
  31  |   10   18    5   14   18    3   18    5    9   17    4 |    17   26   21   24   36   17   27   19   27   15    19
  32  |    9   18    7   12   12    4   13    5    8   21    3 |    31   34   29   31   28   29   35   31   33   40    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   17    7   12   14    4   15    6   10   19      |T   29   33   27   28   34   27   35   27   32   28    26
 WRMS |   10   17    7   12   13    4   15    6    9   19      |NE  27   31   25   26   32   24   32   25   30   26    23
 MEDI |   10   16    7   12   13    4   14    6    9   17      |MD  24   29   24   24   30   23   31   25   27   25    23

Table 3.1709.3   GPS week: 1709   Day: 3   MJD: 56210.000                            

        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  |   15   20    9   11   13    5   12    6    9   16    4 |    22   22   19   21   29   22   24   22   22   19    18
   2  |    8   15    6   11   12    3   16    8   10   26    4 |    14   21   14   14   18   14   19   14   18   27    11
   3  |    9   12    4   10   13    4    9    8    7   20    3 |    22   28   21   25   27   23   26   20   22   27    21
   4  |   10   11    6    5    9    3   10    4    8   27    2 |    31   35   32   31   33   32   36   32   34   35    31
   5  |   11   15    5    8   15    4   21    8   11   12    4 |    19   34   25   23   33   26   33   28   34   27    25
   6  |   10   10    5    9   10    2    7    6    7   21    3 |    35   39   33   36   39   34   36   31   35   38    33
   7  |   11   15    5   11   13    4   15    6    9   14    3 |    26   28   23   23   32   23   27   22   28   20    22
   8  |   15   29    6   12   15    7   18    8   12   27    5 |   130  132  126  129  126  121  131  122  130  127   127
   9  |   10    9    6    9   10    7   12    7    9   16    3 |    23   23   21   22   24   24   25   21   26   18    20
  10  |    7   13    4   10   11    4   11    6    7   28    3 |    52   60   53   54   56   53   59   54   59   65    54
  11  |    9   12    7   11   14    5    8    5   10   13    3 |    21   26   23   26   29   21   25   19   15   21    20
  12  |   10   17    7    8   16    5   17    7   11   16    4 |    26   33   27   26   28   27   32   27   33   28    25
  13  |    7   14    6    8   16    3   13    5   11   21    3 |    25   36   32   30   39   29   35   28   32   22    29
  14  |   10   10    6   11   12    3   11    4    7   12    3 |    25   34   30   28   37   28   34   27   30   24    28
  15  |   10   17    7   11   10    4   18    7    8   30    4 |    25   30   26   26   31   24   28   26   30   31    24
  16  |   13   17    6   14   14    4   19    8    9   17    4 |    28   33   26   27   32   24   31   25   26   23    25
  17  |   13   16    7   12   11    4   16    6   11   26    4 |    23   30   26   27   27   24   31   24   31   24    24
  18  |    9   11    6   10   15    3   10    5    8   11    3 |    37   40   34   29   40   32   39   33   35   35    33
  19  |   10   15    7    7    9    3   13    7   10   25    3 |    19   24   18   23   20   18   23   17   16   16    16
  20  |   11   13   11    9   13    5   15    8   10   15    4 |    31   35   25   29   32   28   33   27   36   35    28
  21  |    8   11    5    9   15    4   13    7   13   18    3 |    12   24   15   18   27   13   18   13   23   17    14
  22  |   11   12    6   13   16    3   11    7    9   10    3 |    28   37   30   22   41   27   38   27   33   29    29
  23  |   10   14    8    8   13    4   15    6   12   25    4 |    23   30   27   25   30   25   31   24   26   20    24
 X24  |    7  ---  ---  ---  ---  111  ---  ---  ---  ---    0 |   ---  ---  ---  ---  --- 9999  ---  ---  ---  ---     1
  25  |   11   27    8   10   13    5   13    7    9   12    4 |    26   32   24   22   30   23   32   23   26   26    22
  26  |    8    8    6   10    8    3   10    6   11   15    3 |    27   26   25   30   30   27   27   28   27   26    26
 X27  |   12   13   14   13  ---    9   16    8  ---  ---    5 |    23   24   28   19  ---   19   26   18  ---  ---    19
  28  |    7   15    5   16   14    3   14    6   10   15    4 |    22   33   28   31   37   28   33   27   29   26    26
  29  |   16   16    6    9   10    4   16    4   11   32    4 |    24   30   22   25   22   22   27   23   26   22    21
  30  |   13   13    7   10   13    3   11    4    8   15    3 |    38   42   40   34   40   38   39   38   38   39    37
  31  |   10   19    6   10   18    5   18    5    8   13    4 |    18   28   19   22   33   20   26   16   23   20    18
  32  |   12   17    7    7   15    5   13    7    6   23    3 |    51   52   49   49   52   49   51   48   49   56    48
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    7   10   13    4   14    6    9   20      |T   29   35   30   30   35   29   34   29   33   31    28
 WRMS |   10   15    7   10   13    4   13    6    8   19      |NE  26   32   27   27   32   26   31   26   29   28    24
 MEDI |   10   14    6   10   13    4   13    6    9   16      |MD  25   32   26   26   32   25   31   26   29   26    24

Table 3.1709.4   GPS week: 1709   Day: 4   MJD: 56211.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   11   18    9   18   14    5   16    8    7   15    4 |    20   20   22   21   25   21   29   22   20   21    19
   2  |   11   16    7   20   14    3   14    7    8   26    4 |    16   22   12   15   20    9   16   12   13   28     9
   3  |   12   10    6   16   13    4   11    6    9   20    3 |    17   20   20   24   19   17   24   18   18   24    17
   4  |   11   10    8   14   12    2   10    6    9   30    3 |    19   21   19   25   21   16   24   19   20   27    18
   5  |   10   16    7   17   17    5   18    7    9   14    4 |    19   28   23   26   29   19   30   23   27   21    21
   6  |   12    8    6   17   12    3   10    5    9   19    3 |    21   26   24   31   24   21   28   23   19   27    21
   7  |   10   17    7   18   13    4   19    7    9   15    4 |    17   25   19   16   26   14   27   15   24   12    16
   8  |   12   26    8   17   21    7   17   13   11   28    5 |    87   95   93   85   98   92   92   88   95   92    90
   9  |   11   12    5   20   11    6   12    6    8   17    3 |    21   24   22   18   24   21   23   21   25   21    19
  10  |    9   13    7   20   15    3   10    5    8   27    3 |    45   55   50   49   48   47   55   49   52   65    49
  11  |    9   13    6   17   17    4   11    7    8   10    3 |    17   21   17   19   25   17   23   18   14   17    14
  12  |    7   17   11   16   17    4   15    9    9   14    4 |    20   25   24   21   26   20   22   20   22   21    18
  13  |    8   14    6   19   14    3   14    8   12   20    4 |    18   33   26   27   36   22   31   22   26   13    23
  14  |   12   11    4   22   13    3   17    5    8   13    4 |    21   28   27   31   31   23   30   22   30   18    24
  15  |   15   16    7   19   12    4   19    5    7   27    4 |    26   27   23   24   27   20   27   20   25   25    21
  16  |   15   19    8   18   16    5   17    8    9   17    4 |    22   27   21   24   27   18   24   18   24   19    19
  17  |   14   16   10   19   12    5   21    8    8   28    4 |    22   26   24   29   22   21   28   20   25   20    20
  18  |    8   12    5   21   14    4   15    5    9   11    3 |    31   37   33   26   38   31   39   33   32   28    31
  19  |   13   13    5   15   10    3   12    6   11   26    3 |    21   23   22   18   18   19   23   18   19   18    16
  20  |   12   16    5   16   13    3   15    7    9   14    4 |    22   27   23   23   29   23   28   24   24   26    22
  21  |    9   13    6   18   17    4   11    6   11   20    4 |    14   25   17   18   30   13   20   16   20   17    15
  22  |   10   16    7   21   13    4   15    7   12   10    4 |    31   37   33   22   41   30   42   31   36   28    31
  23  |   13   15    6   17   14    4   16    7   10   27    4 |    20   27   21   23   25   17   26   17   20   12    18
 X24  |   40  ---  ---  ---   54   75  105  ---  ---  ---   46 |   ---  ---  ---  ---   41 9999   52  ---  ---  ---     1
  25  |   10   22    8   14   16    5   22    8   13   15    5 |    19   22   23   18   30   19   32   18   26   20    18
  26  |   10   11    7   19   11    3   10    6   13   22    3 |    36   34   37   33   36   37   37   35   40   36    35
 X27  |   16   12   10   22  ---    8   14    6  ---  ---    5 |    29   23   26   17  ---   20   23   20  ---  ---    20
  28  |    8   16    8   19   16    3   18    6   12   18    4 |    17   28   23   23   32   18   24   17   25   16    19
  29  |   14   16    7   19   13    5   16    5   12   31    4 |    22   27   23   21   21   18   27   19   22   14    18
  30  |   12   11    7   14   13    3   10    6   11   17    3 |    25   29   26   32   28   26   27   27   31   24    26
  31  |   13   17    7   16   16    5   24    7   13   15    5 |    19   26   19   19   26   17   27   15   25   24    16
  32  |   13   19    6   16   15    4   15    9    9   23    4 |    37   41   35   38   36   35   42   35   38   40    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    7   18   14    4   15    7   10   21      |T   24   29   26   26   30   23   31   24   27   25    23
 WRMS |   11   15    7   18   14    4   15    7    9   20      |NE  22   27   24   24   28   21   29   22   25   23    20
 MEDI |   11   16    7   18   14    4   15    7    9   18      |MD  21   27   23   23   27   20   27   20   25   21    19

Table 3.1709.5   GPS week: 1709   Day: 5   MJD: 56212.000                            

        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  |    7   19    6   13   15    5   14    8    9   15    4 |    19   20   16   22   24   15   23   18   17   18    16
   2  |   10   16    5   16   13    4   18    9    8   26    4 |    19   22   15   18   19   14   19   14   18   31    12
   3  |    9    9    4   12   15    3    8    7   10   23    3 |    20   24   20   27   26   18   24   22   21   28    19
   4  |    9    9    4   10   13    4    9    7   10   30    3 |    27   31   27   32   30   25   30   27   28   37    26
   5  |    8   17    7   10   18    4   16    5   11   11    4 |    16   27   17   22   33   16   25   19   25   18    18
   6  |    9    8    5   12   13    4    7    6    8   18    3 |    35   38   34   39   39   32   38   35   34   40    33
   7  |   11   19    7   11   15    4   15   10    9   16    4 |    18   24   17   19   27   13   22   16   20   14    15
   8  |    7   27    5   13   14    5   16    9   12   27    4 |    37   47   37   39   42   35   43   36   36   41    37
   9  |    8   10    6   13   13    5   13   10    8   18    3 |    23   23   21   22   25   19   23   21   18   19    19
  10  |    5   16    6   12   12    4   11    8    7   27    3 |    40   52   44   44   49   43   51   45   48   60    44
  11  |    9   12    6   12   18    5    9    8    8   12    3 |    20   23   18   21   28   18   24   17   15   20    16
  12  |   10   17    8   14   17    7   15    8   11   15    4 |    21   27   23   23   24   18   25   23   24   23    20
  13  |    6   14    6   14   16    4   13    6   14   20    4 |    23   32   25   28   37   22   32   22   24   18    24
  14  |   10   12    6   13   20    4   13    6    8   14    3 |    17   29   24   24   33   20   29   21   25   20    21
  15  |    9   16    7   13   13    5   18    5   13   32    4 |    20   25   20   23   28   16   27   19   23   25    19
  16  |   12   15    4   13   14    5   15   10   10   21    4 |    19   24   18   25   27   16   22   20   22   22    18
  17  |   11   15    6   14   13    3   17    7   14   27    4 |    21   26   20   26   23   19   27   19   24   17    20
  18  |   10   13    4   15   18    6   15    7   11   14    4 |    24   32   26   23   37   22   36   25   28   25    25
  19  |   12   13    5    9   14    3   11    5   10   25    3 |    21   21   15   22   16   15   20   16   17   15    14
  20  |    9   17    7   11   13    4   19    7   13   12    4 |    30   35   27   30   35   29   34   30   34   35    29
  21  |    9   11    7   13   17    3   10    6   12   21    3 |    18   25   14   19   27   11   20   13   21   23    14
  22  |    7   10    6   13   17    4   13    6   12   11    3 |    20   30   25   21   41   21   32   23   31   22    24
  23  |   10   16    6   12   14    5   16    6   11   27    4 |    22   28   20   23   26   18   27   19   21   17    19
 X24  |    8  ---  ---  ---   98   40  ---  ---  ---  ---    0 |   ---  ---  ---  ---   47 9999  ---  ---  ---  ---     1
  25  |    8   28    8   13   18    7   12    8   11   17    4 |    18   27   20   18   27   16   27   18   21   21    17
  26  |    8    7    3   13   12    4    9    6    9   16    3 |    20   24   19   27   26   19   22   22   22   22    20
 X27  |   11   15    9   18  ---   14   17   12  ---  ---    5 |    26   26   27   22  ---   17   24   21  ---  ---    22
  28  |    9   12    5   17   14    5   14    6   10   17    3 |    15   27   20   25   32   18   27   19   22   17    19
  29  |   12   16    8   13   12    6   16    7   10   30    4 |    25   27   20   22   20   19   26   20   22   17    19
  30  |   10   13   12   13   17    4   10    9   13   16    4 |    32   35   34   36   36   30   33   34   35   30    32
  31  |    9   20    6   14   20    3   21    9   12   14    4 |    19   27   17   25   33   15   25   18   24   20    17
  32  |    9   17    5   13   15    5   15    7    5   30    3 |    77   82   76   74   77   74   81   74   76   80    75
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   15    6   13   15    5   14    7   10   21      |T   24   30   24   27   32   22   29   24   26   26    22
 WRMS |    9   15    6   12   15    5   14    7    9   21      |NE  24   29   23   26   31   21   29   23   26   26    22
 MEDI |    9   15    6   13   15    4   14    7   10   18      |MD  21   27   20   23   28   18   27   21   23   22    19

Table 3.1709.6   GPS week: 1709   Day: 6   MJD: 56213.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   12   19    9   13   13    5   16    7   12   16    4 |    33   35   30   34   30   31   32   30   31   31    28
   2  |    8   18    8   14   13    3   17    7   12   29    4 |    14   23   14   14   21   10   18   13   14   32    11
   3  |    9   12    4    8   16    5    9    6   12   23    3 |    20   22   18   19   26   18   25   18   25   24    19
   4  |    8   10    7    8   11    3    9    6   11   33    3 |    26   30   29   30   28   27   32   29   29   33    27
   5  |   14   19    5   10   16    4   16    9    9   13    4 |    17   31   21   25   29   21   30   24   27   24    21
   6  |    8   11    6   11   11    3    8    6   10   23    3 |    33   32   31   28   36   29   36   30   36   30    32
   7  |    9   15    5   10   12    3   18    7    7   19    3 |    16   21   13   15   24   11   21   13   18   19    12
   8  |    9   13    7   11   16    5   13    9    8   26    3 |    94   96   94   91   95   93   92   91   95   94    93
   9  |    6   11    5   12   16    6   10    7   13   19    3 |    20   26   21   26   28   21   25   21   26   22    20
  10  |    7   10    7   15    9    3   10    7    9   27    3 |    42   49   42   43   46   43   49   44   50   58    44
  11  |    6   14    5   12   18    6   10    6   10   14    3 |    26   28   24   27   31   25   29   26   18   25    22
  12  |    7   19    8   12   18    6   18    8   11   17    4 |    23   31   27   30   27   20   26   28   30   29    23
  13  |    5   14    5   11   16    4   13    7   10   23    3 |    29   31   30   28   37   25   32   26   29   22    28
  14  |    8   12    4   14   18    4   13    5   10   15    3 |    27   33   30   32   36   26   30   27   30   25    28
  15  |    9   16    7   11   12    4   17    6   10   30    4 |    24   28   25   24   32   21   25   21   25   31    22
  16  |   13   18    6    9   14    4   15    6    9   27    4 |    25   32   21   25   31   20   26   21   27   30    21
  17  |   13   18    6   13   12    4   18    6    9   27    4 |    26   32   28   34   32   27   33   28   31   28    27
  18  |    9   12    6   12   18    3   15    5   14   15    4 |    41   37   36   27   36   32   42   32   39   33    35
  19  |   11   16    5    9   13    4   13    7   17   29    4 |    27   32   24   31   22   23   27   26   21   30    21
  20  |    9   16    6   10   12    3   15    6    9   19    3 |    40   39   38   32   35   36   42   37   40   38    37
  21  |   10   12    6   11   18    5   25    6   13   20    4 |    22   26   18   21   28   14   28   17   23   24    18
  22  |    8   16    6   11   16    5   10    6    8   13    3 |    33   36   31   23   41   27   39   28   36   29    31
  23  |   10   17    7   13   14    4   15    6   12   28    4 |    24   25   21   23   24   19   25   18   23   17    20
 X24  |    7  ---  ---  ---   87   83  ---  ---  ---  ---    0 |   ---  ---  ---  ---   50 9999  ---  ---  ---  ---     1
  25  |    6   27    6   12   18    7   14    8   13   21    4 |    25   32   27   28   31   24   30   27   30   29    24
  26  |    7   10    5   14   12    5    8    7   11   16    3 |    17   18   19   18   27   17   17   17   23   22    17
 X27  |   14   14    7   14 7143    7   14    8  ---  ---    5 |    24   28   21   21 9999   19   23   22  ---  ---    19
  28  |    8   16    5   12   16    3   12    6    7   17    3 |    21   30   26   32   34   24   28   26   28   26    24
  29  |   13   17    8   15   13    4   17    6   11   34    4 |    29   33   27   30   27   25   32   27   28   26    25
  30  |   10   11    4   11   14    4   12    7   10   23    3 |    29   32   26   29   33   27   32   26   34   28    27
  31  |   10   27    7   15   21    4   18    6    8   15    4 |    21   33   21   27   37   20   27   21   29   22    20
  32  |    8   19    6   11   13    6   14    8    9   23    4 |    49   56   51   53   53   53   60   52   54   64    50
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   16    6   12   15    4   14    7   11   23      |T   28   33   28   29   34   26   32   27   31   31    26
 WRMS |    9   16    6   12   15    4   14    6   10   23      |NE  26   31   26   27   32   24   30   25   29   29    24
 MEDI |    9   16    6   12   14    4   14    6   10   21      |MD  26   32   26   28   31   24   30   26   29   28    23



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 4.1709   GPS week: 1709   MJD: 56207.0-56213.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3034 |U    6     5    14 |U    8    11    34 |U    8    13    20 |
emr | emr 2957 |     7     6    20 |U   10    11    39 |    10    17    20 |
esa | esa 2976 |     6     5    14 |U    8    15    50 |     8    12    19 |
gfz | gfz 2972 |U    6     5    15 |U    7     9    35 |U    8    12    19 |
grg | grg 2933 |U    9     9    23 |U    8    14    38 |     9    10    24 |
igr | igr 2973 |     6     5    14 |     7    11    35 |     8    12    20 |
igs | igs 2975 |     6     5    14 |     7    10    36 |     8    12    19 |
jpl | jpl 2985 |     7     7    19 |U   10    12    33 |    10    14    22 |
mit | mit 2976 |     6     5    15 |U   11    15    32 |U    9    12    22 |



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 5.1709.0   GPS week: 1709   Day: 0   MJD: 56207.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2966 |     4     4    13 |     5     7    21 |     8     7    14 |
emr | emr 2972 |     6     5    18 |     6     6    22 |     9    10    13 |
esa | esa 2976 |     4     4    13 |     5     8    22 |     8     7    15 |
gfz | gfz 2971 |     4     4    13 |     6     6    21 |     8     6    14 |
grg | grg 2976 |    10    20    37 |     8     9    24 |    11     7    22 |
igr | igr 2976 |     4     4    13 |     5     6    21 |     9     6    13 |
igs | igs 2976 |     4     4    13 |     5     6    21 |     8     7    14 |
jpl | jpl 2972 |     4     6    16 |     9    15    35 |     9     9    16 |
mit | mit 2976 |     5     3    11 |     5     8    23 |     9     9    16 |

Table 5.1709.1   GPS week: 1709   Day: 1   MJD: 56208.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2987 |     6     5    15 |     7    15    25 |     6     7    19 |
emr | emr 2974 |     8     6    23 |     8    13    30 |     8     9    19 |
esa | esa 2976 |     6     6    17 |     6    14    24 |     7     7    18 |
gfz | gfz 2971 |     6     6    17 |     6    13    23 |     7     5    16 |
grg | grg 2880 |    10     9    28 |     7    10    28 |     8     7    22 |
igr | igr 2976 |     6     7    17 |     6    14    23 |     7     5    17 |
igs | igs 2976 |     6     5    17 |     6    14    25 |     7     6    17 |
jpl | jpl 2974 |     7     8    23 |     7    15    29 |     9     9    21 |
mit | mit 2976 |     7     6    18 |     6    16    24 |     7     7    20 |

Table 5.1709.2   GPS week: 1709   Day: 2   MJD: 56209.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3046 |     7     5    14 |     5     8    76 |     7    10    24 |
emr | emr 2976 |     8     5    18 |     7    11    80 |     9    13    20 |
esa | esa 2976 |     7     4    13 |     6    11    76 |     6     9    16 |
gfz | gfz 2972 |     7     4    13 |     6    10    79 |     6     9    16 |
grg | grg 2879 |     9     6    15 |     6    15    82 |     6     6    18 |
igr | igr 2976 |     7     5    12 |     5    11    77 |     7     9    16 |
igs | igs 2976 |     7     4    12 |     6    10    77 |     7     9    16 |
jpl | jpl 2974 |     7     5    16 |     6     8    23 |     8    10    18 |
mit | mit 2976 |     7     6    16 |     9    16    23 |     8    10    19 |

Table 5.1709.3   GPS week: 1709   Day: 3   MJD: 56210.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3047 |     5     4    13 |     8     7    25 |     6     9    16 |
emr | emr 2976 |     6     6    19 |     9     9    28 |     7     8    17 |
esa | esa 2976 |     4     5    12 |     7     8    24 |     7     8    15 |
gfz | gfz 2971 |     5     4    13 |     8     7    26 |     7     8    14 |
grg | grg 2879 |     7     7    12 |     7    12    28 |     7     6    17 |
igr | igr 2972 |     5     5    14 |     7     8    26 |     8     9    18 |
igs | igs 2976 |     4     5    13 |     8     8    25 |     6     8    14 |
jpl | jpl 2976 |     5     7    15 |    10    11    31 |     9    11    22 |
mit | mit 2976 |     5     4    13 |     7     9    25 |     8     9    16 |

Table 5.1709.4   GPS week: 1709   Day: 4   MJD: 56211.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3062 |     6     7    13 |    10    11    34 |    11    23    25 |
emr | emr 2852 |     9     9    21 |    12     8    39 |    17    36    25 |
esa | esa 2976 |     7     8    14 |    10    10    36 |    11    22    24 |
gfz | gfz 2975 |     6     9    15 |    10     9    36 |    11    22    24 |
grg | grg 2973 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2976 |     7     9    14 |    10     9    34 |    11    24    26 |
igs | igs 2975 |     6     8    14 |    10    10    35 |    11    22    25 |
jpl | jpl 3060 |     8    10    17 |    10    10    35 |    14    28    31 |
mit | mit 2976 |     7     8    15 |    10    12    37 |    12    22    31 |

Table 5.1709.5   GPS week: 1709   Day: 5   MJD: 56212.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     6     7    18 |    12    18    27 |     8     8    21 |
emr | emr 2975 |     7     7    21 |    18    25    39 |     8     8    20 |
esa | esa 2976 |     6     6    18 |    13    43   133 |     7     7    19 |
gfz | gfz 2972 |     6     6    18 |     7    12    30 |    11    11    26 |
grg | grg 2975 |     7     6    19 |    12    23    30 |     9     8    26 |
igr | igr 2965 |     6     5    18 |    11    20    33 |     7     7    22 |
igs | igs 2973 |     6     6    18 |     7    13    37 |     7     7    21 |
jpl | jpl 2969 |     7     8    20 |    18    19    46 |     9     9    23 |
mit | mit 2976 |     6     7    19 |    29    33    59 |     6     5    25 |

Table 5.1709.6   GPS week: 1709   Day: 6   MJD: 56213.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3065 |     5     4    14 |     8     9    30 |     8    25    24 |
emr | emr 2976 |     6     5    18 |    11     8    37 |    11    36    27 |
esa | esa 2976 |     5     4    14 |     8    10    34 |     8    25    23 |
gfz | gfz 2976 |     5     3    15 |     8     8    32 |     8    25    25 |
grg | grg 2975 |     9     7    26 |    10    18    39 |    11    27    40 |
igr | igr 2976 |     5     3    13 |     8     9    32 |     8    25    25 |
igs | igs 2976 |     5     4    14 |     8     9    34 |     9    25    24 |
jpl | jpl 2975 |     8     7    26 |     8     8    35 |    11    23    24 |
mit | mit 2976 |     5     4    15 |    10     9    38 |    10    21    26 |


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

Table 6.1709   GPS week: 1709   MJD: 56207.500-56213.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -85     -47     226    -577     -2 |       6     17
            |      23      18      45     130      5 |       3
emr   uuuxu |      42     -36     219     232     -9 |      34     38
            |      15      20     101      91      8 |       5
esa   uuuxu |     -40     -26      -5    -466      2 |      10     19
            |      50      29      32     118      7 |       2
gfz   uuuuu |      41      43    -122    -146      6 |      -2     15
            |      28      23      57      98      8 |       2
grg   uuuux |      32     -11     -47     118     23 |     -19     53
            |      20      17      69      70     15 |       7
igr   xxxxx |     -29      28     -64    -144      4 |      -6     17
            |      12      20      30      60      9 |       1
irf   xxxxx |      22       4     -41      -5      3 |       0     11
            |      13      16      23      38      3 |       1
jpl   uuuuu |       9     -19     -27      63    -14 |      42     44
            |      19      17      61      76      9 |       4
mit   uuuuu |      41      26     -70      45     -2 |      -5     12
            |      16      20      49      81      9 |       2
ngs   uuuuu |     -10      53     -79     -98      2 |       8     17
            |      34      42      81     107      7 |       2
sio   xxxxx |       7      39      60     -54      1 |      23     28
            |      22      25      47     113      7 |       3


Table 7.1709.0   GPS week: 1709   Day: 0   MJD: 56207.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -57     -77     280    -610      0 |      10     21
emr   uuuxu |      64     -25      82     271      0 |      42     46
esa   uuuxu |     -53       2      16    -536     11 |      12     21
gfz   uuuuu |      26      23     -71    -177     19 |      -3     14
grg   uuuux |      11       3    -125     146      1 |      -7     60
igr   xxxxx |     -26       8     -85    -143     17 |      -6     17
irf   xxxxx |      24       9     -34     -23     -2 |       1     10
jpl   uuuuu |      11     -36     -17     132      1 |      48     49
mit   uuuuu |      34      16     -50      27    -14 |      -1     10
ngs   uuuuu |      -9      58     -84     -88     10 |      10     18
sio   xxxxx |       0      35      34     -43     15 |      26     32

Table 7.1709.1   GPS week: 1709   Day: 1   MJD: 56208.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -63     -41     189    -551      0 |       8     19
emr   uuuxu |      26     -33      77     154    -20 |      40     44
esa   uuuxu |    -127       2      -5    -523     -4 |      12     20
gfz   uuuuu |      96      30     -85       7      7 |      -1     15
grg   uuuux |      64       4    -144     137     23 |     -13     56
igr   xxxxx |     -21      26     -55    -199      3 |      -5     17
irf   xxxxx |      42     -21     -13     -14      1 |       0      9
jpl   uuuuu |      10     -30     -12      86     -9 |      47     49
mit   uuuuu |      45       8     -16       8     -2 |      -4     10
ngs   uuuuu |      34      24       3    -173      6 |      10     18
sio   xxxxx |      -9       9     122    -115     -2 |      26     31

Table 7.1709.2   GPS week: 1709   Day: 2   MJD: 56209.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -78     -53     246    -597      3 |       7     18
emr   uuuxu |      37     -53     316     232    -12 |      35     40
esa   uuuxu |     -18      -6      33    -450     -2 |      10     20
gfz   uuuuu |      16      23    -205    -101      1 |      -2     15
grg   uuuux |      28      -4       3     157     25 |     -19     54
igr   xxxxx |     -26      37     -23    -168     -7 |      -5     18
irf   xxxxx |      14      21     -79      -2      5 |      -1     10
jpl   uuuuu |      14     -30     -81      60    -15 |      44     46
mit   uuuuu |      30      39    -143       6      4 |      -5     12
ngs   uuuuu |     -14      21      28     -72     -7 |       9     18
sio   xxxxx |      39      27     102     149     -2 |      23     29

Table 7.1709.3   GPS week: 1709   Day: 3   MJD: 56210.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -88     -22     190    -539     -1 |       4     17
emr   uuuxu |      26     -34     258     307     -9 |      33     39
esa   uuuxu |      -4     -41     -64    -341     -1 |       8     18
gfz   uuuuu |      30      47    -146    -143      0 |      -3     15
grg   uuuux |      15     -34      12     195     41 |     -26     49
igr   xxxxx |     -24      31     -33     -23     -8 |      -7     18
irf   xxxxx |       2       2     -29     -28      6 |      -2     10
jpl   uuuuu |      -8     -24     -43     117    -19 |      41     44
mit   uuuuu |      14      47     -13     -91      6 |      -6     12
ngs   uuuuu |       8      22     -33      73     -5 |       7     17
sio   xxxxx |     -29      31      22      19     -5 |      20     25

Table 7.1709.4   GPS week: 1709   Day: 4   MJD: 56211.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |    -121     -56     256    -813      1 |       5     17
emr   uuuxu |      40     -56     301      68      0 |      31     36
esa   uuuxu |     -60     -38     -25    -651     12 |       8     19
gfz   uuuuu |      29      50    -184    -314      2 |      -2     16
grg   uuuux |      53     -36     -64       0     29 |     -22     50
igr   xxxxx |     -19      65    -109    -193      3 |      -7     18
irf   xxxxx |      34      14     -66     -52      2 |       0     12
jpl   uuuuu |      11      10      98     -99    -13 |      40     43
mit   uuuuu |      65      40     -93     129     -7 |      -4     13
ngs   uuuuu |      16      72    -162     -11      2 |       7     17
sio   xxxxx |       5      54      93    -202      0 |      21     26

Table 7.1709.5   GPS week: 1709   Day: 5   MJD: 56212.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |    -110     -48     163    -562     -5 |       3     14
emr   uuuxu |      58     -50     288     272     -2 |      28     31
esa   uuuxu |      31     -23       0    -455      8 |       7     18
gfz   uuuuu |      28      40     -61    -190     15 |      -3     15
grg   uuuux |      20      -9      38     150      5 |     -21     51
igr   xxxxx |     -53      23     -80    -120     12 |      -9     17
irf   xxxxx |      20     -16     -40      18      1 |       0     12
jpl   uuuuu |     -20     -21     -62      61    -12 |      37     39
mit   uuuuu |      47      -6    -111     114     -9 |      -5     13
ngs   uuuuu |     -63     136    -128    -178      0 |       5     14
sio   xxxxx |      15      30      55     -73      7 |      20     24

Table 7.1709.6   GPS week: 1709   Day: 6   MJD: 56213.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuxu |     -80     -31     261    -370    -11 |       4     13
emr   uuuxu |      43       1     211     320    -18 |      29     31
esa   uuuxu |     -46     -77      10    -306     -6 |      11     18
gfz   uuuuu |      64      90    -102    -107      1 |       2     13
grg   uuuux |      34       0     -47      44     34 |     -23     51
igr   xxxxx |     -37       7     -60    -165      4 |      -5     15
irf   xxxxx |      20      16     -26      65      8 |       0     12
jpl   uuuuu |      42       1     -73      82    -28 |      37     39
mit   uuuuu |      52      40     -66     121     12 |      -7     14
ngs   uuuuu |     -42      39    -178    -236     11 |       6     14
sio   xxxxx |      25      87      -8    -112     -2 |      22     26



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