[IGSREPORT-21421] Wk 1710 IGS Final Orbits [Resubmission]

IGS ACC igs.acc at noaa.gov
Mon Dec 17 07:56:23 PST 2012


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1710   (Oct 14, 2012 - Oct 20, 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:

igs1710[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1710[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1710[0-6].cls  IGS GPS clock combination summary report.
igs17107.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17107.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   | HOB2 KOUC MATE BRMU HOB2 KOUC MATE SUTM
                0  |  EMR   | LPGS HOB2 LPGS YELL
                0  |  ESA   | HOB2 MATE HOB2 MATE
                0  |  GFZ   | ADIS AREQ BOGT LPGS MATE SANT TIXI
                0  |  GRG   | 13 USNO WSRT BRMU MAC1 MAL2 USNO WIND WSRT
                0  |  MIT   | 19 19 MAC1 SOFI
                1  |  COD   | HNPT KOUC HNPT KOUC
                1  |  EMR   | USNO
                1  |  ESA   | ALRT
                1  |  GFZ   | ALRT BOGT LHAZ SOFI
                1  |  GRG   | 13 13 MCM4 WROC LPGS MCM4 NRMD SOFI VESL WROC WSRT
                1  |  JPL   | NKLG
                1  |  MIT   | 15 JOZ2 USNO ALRT JOZ2 USNO
                2  |  COD   | HOB2 HERT HOB2 JOZ2
                2  |  EMR   | HOB2
                2  |  ESA   | NOVM
                2  |  GFZ   | ARTU ASPA SANT
                2  |  GRG   | AREQ WROC AREQ SOFI WROC
                2  |  JPL   | ARTU
                2  |  MIT   | 27 27 JOZ2 JOZ2
                3  |  COD   | HERT HNPT JOZ2
                3  |  EMR   | KERG MCM4 CRO1 KERG MCM4 YELL
                3  |  ESA   | AREQ
                3  |  GFZ   | BOGT KOSG LHAZ
                3  |  GRG   | NRMD WROC NRMD SOFI THTI WROC
                3  |  MIT   | 7 7 DARW MDVJ SOFI DARW REUN
                4  |  COD   | KOUC MATE KOUC MATE
                4  |  EMR   | 30 MCM4 MCM4
                4  |  GFZ   | 30 BOGT MATE MIZU
                4  |  GRG   | 9 HYDE MATE WROC ALIC ALRT AMC2 ANKR ARTU AUCK BAKE
                4  |  GRG   | BARH BOGT BRFT BRMU BRUX BUCU CAGZ CAS1 CEDU CHPI
                4  |  GRG   | CHTI CHUR COCO CONZ CRO1 DARW DAV1 DRAO DUBO FAIR
                4  |  GRG   | GLSV GOLD GOPE GUAM GUAT GUUG HERT HNPT HOFN HOLM
                4  |  GRG   | HYDE IISC IRKJ IRKT KARR KIT3 KOKB KOUC LAMA LHAZ
                4  |  GRG   | LPGS MAC1 MAL2 MAR6 MAS1 MATE MAW1 MBAR MCM4 MDO1
                4  |  GRG   | MDVJ MKEA NANO NOVM NRC1 NRIL NRMD NTUS NYAL OHI2
                4  |  GRG   | ONSA PALM PDEL PIMO POTS QAQ1 RAMO RESO SCH2 SCOR
                4  |  GRG   | SCUB SEY1 SFER SOFI SPT0 STJO STR1 SYOG THTI THU3
                4  |  GRG   | TIDB TIXI TOW2 TRO1 UNSA URUM USN3 WES2 WHIT WIND
                4  |  GRG   | WROC WSRT WTZR YEBE YELL ZECK
                4  |  JPL   | 30
                4  |  MIT   | 30 30 NICO GMAS NICO
                5  |  COD   | 30 30 KOUC KOUC
                5  |  EMR   | TLSE
                5  |  ESA   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  ESA   | 21 22 23 25 26 28 29 30 31 32 1 2 3 4 5 6 7 8 9 10
                5  |  ESA   | 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26 28 29
                5  |  ESA   | 30 31 32 AREQ AREQ
                5  |  GFZ   | 30 BOGT MDO1 METS SSIA THTI
                5  |  GRG   | ARTU NICO
                5  |  JPL   | 30
                5  |  MIT   | NICO GMAS NICO
                6  |  COD   | HERT KOUC HERT KOUC
                6  |  EMR   | MCM4 TLSE
                6  |  ESA   | AREQ
                6  |  GFZ   | BOGT LHAZ SANT TLSE
                6  |  GRG   | 6 6 MATE PDEL WROC MATE WROC
                6  |  MIT   | MBAR MDVJ MBAR

 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
               ----+--------+---------------
                1  |  GRG   |  27
                6  |  GRG   |  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 G03 |    |    |    |    |    |  2 |    |
           PRN G24 |  4 |  2 |  2 |  1 |    |    |  2 |
           PRN G27 |    |    |    |    |  4 |  4 |  4 |

 8. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) all IGS products, including the IGS combined
    orbits, are based on the IGS realization of the ITRF2005 reference frame
    (IGS05). For more information see IGSMAIL #5447. The IGS05 frame is also the
    basis for the homogeneously reprocessed IGS products from GPS Weeks 730 to 1459
    (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products, are
    based on the IGS realization of the ITRF2008 reference frame (IGS08). For more
    information see IGSMAIL #6354.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.1     .9     .6     -66      6     -4    -.16
       EMR  |   0 |   -4.5     .1   13.7      11      6     -6    -.10
       ESA  |   0 |    2.9    9.4   -9.1     168   -191     92    -.37
       GFZ  |   0 |   -1.0     .2     .6     -55    -22    -25    -.28
       GRG  |   0 |    4.0    3.0   14.7      -3     56    -18     .04
       JPL  |   0 |   -1.2   10.1   14.6     -61     34      6     .04
       MIT  |   0 |    5.0    9.5    7.1      10      4    -21    -.17
       NGS  |   0 |    2.1   -8.7   14.1    -127    -17     -3     .23

       COD  |   1 |     .4    1.0    1.3     -74      1     -2    -.24
       EMR  |   1 |   -5.8    6.9   11.5      12      5      4    -.05
       ESA  |   1 |    2.5   10.7   -4.9     153   -191     88    -.39
       GFZ  |   1 |    -.6     .1    1.1     -68    -28    -13    -.23
       GRG  |   1 |   -4.1    8.6   10.3     -22     57    -23    -.07
       JPL  |   1 |    -.1   11.5   15.5       7     -2     -7     .17
       MIT  |   1 |    2.7    9.0   11.0       4      2    -36    -.11
       NGS  |   1 |   -6.9    1.4    8.7     -61     20    -62    -.02

       COD  |   2 |    -.3    1.0     .2     -66     12     -2    -.30
       EMR  |   2 |   -1.3    8.6    7.9      18      5      9    -.04
       ESA  |   2 |    2.8   13.2  -10.0     211   -200     69    -.34
       GFZ  |   2 |    -.5     .2     .2     -58    -38    -16    -.13
       GRG  |   2 |   -2.7    4.4   11.6       1     29    -25    -.06
       JPL  |   2 |    4.5    4.2   16.0     -23     -3     30     .41
       MIT  |   2 |    2.7   12.5   10.3      -5     -3    -22    -.03
       NGS  |   2 |    3.7    3.6    6.9     -33    -19     28     .28

       COD  |   3 |    -.1     .6     .1     -71      9     -4    -.29
       EMR  |   3 |    3.5    3.2   11.0      23      5      3    -.07
       ESA  |   3 |    6.6    9.0   -5.9     185   -226     99    -.26
       GFZ  |   3 |    -.4    1.0     .1     -54    -24    -35    -.10
       GRG  |   3 |    3.1   10.5   15.7       6     35    -42    -.19
       JPL  |   3 |     .3    1.7   14.9     -21     -1     48    -.04
       MIT  |   3 |    7.3    6.1    7.8      -4     -6    -23    -.04
       NGS  |   3 |    3.1    -.2   14.2     -87    -17     19     .25

       COD  |   4 |    -.3    1.2     .1     -56      3     11    -.21
       EMR  |   4 |    4.5    6.4    8.0      13     -2      8     .08
       ESA  |   4 |    5.7    1.5  -11.4      67   -264    146    -.20
       GFZ  |   4 |    -.5     .9     .9     -59    -23    -36    -.15
       GRG  |   4 |    4.3    5.1   18.7      -8     54    -17    -.14
       JPL  |   4 |    6.2   11.2   18.4     -12     15     30     .13
       MIT  |   4 |    8.4    6.8    5.6      -2      0    -24    -.11
       NGS  |   4 |    4.6    1.5    7.3     -43    -24     35     .45

       COD  |   5 |    -.3    1.3     .2     -43     -6     19    -.20
       EMR  |   5 |    3.9    1.8    5.8       4      0      4    -.05
       ESA  |   5 |    3.8    2.3  -13.0     103   -223    128    -.43
       GFZ  |   5 |    -.6     .5     .4     -68    -21    -34    -.25
       GRG  |   5 |    2.9    5.1    8.5     -23     39    -44    -.17
       JPL  |   5 |    3.3    3.9   15.5     -15     13     48    -.31
       MIT  |   5 |    8.2    6.9    8.8      -1      3    -32    -.15
       NGS  |   5 |    2.6   -5.0    5.0     -56    -15     23     .22

       COD  |   6 |    -.5    1.1    -.3     -45      8     15    -.45
       EMR  |   6 |    6.2    7.5    8.3       0      2      0     .02
       ESA  |   6 |    6.7    1.2   -7.1      61   -230    123    -.61
       GFZ  |   6 |    -.4     .7     .1     -51    -30    -25    -.23
       GRG  |   6 |     .8   -2.0   16.2     -16     64    -39    -.02
       JPL  |   6 |    6.9    4.1   20.5     -23     20    -20     .05
       MIT  |   6 |    9.0    7.8    8.7      -1      1    -32    -.17
       NGS  |   6 |   -1.0   -4.9   10.6    -100     -3    -24     .39


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 1.1710.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1710.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 2.1710.[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 3.1710.[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 5.1710.0-6). 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 1710 summary.                       (Oct 14, 2012 - Oct 20, 2012)

Table 1.1710.a   GPS week: 1710   MJD: 56214.000-56220.000

         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  257|    0     0     0     8    50     8  -.45   10   10 |    -923     174     19     88
        |    0     0     1    26    17    11   .04           |     487     667
emr   79|   -1     0     4   -17    31     5   .28   15   15 |    1674     162     20     99
        |    1     1     1    13    25    13   .02           |     881    1180
esa  174|    0     0     0   117  -110    -8   .04    7    7 |   -1327    1043     25    132
        |    0     0     1    49    22    15   .04           |    1450    2339
gfz  189|   -2     0    -4  -110   -25    13  -.41   12   12 |     -87     293     22    153
        |    1     1     1    57    73    25   .02           |     544     748
grg  130|    1     1     6     9    72   -11   .41   16   15 |    -161     242     17    158
        |    1     1     1    17    14    26   .05           |     277     635
igr  n/a|    0     0    -1   -24    77   -24  -.17    4    4 |    4697      32     19     95
        |    0     0     1    21    27    14   .02           |    1007    1231
jpl   80|    0    -1    -1     2    43    22   .42   13   13 |    2390      82     20    127
        |    1     1     1    17    23    22   .02           |     963    1270
mit  240|    0     0    -3   -26    15   -10  -.18    7    7 |    -250     323     21    202
        |    0     0     1    26    23    22   .02           |     365     539
ngs  241|    0     0     1   -86    55    -3   .37   11    9 |    -921     142   1799   3383
        |    0     1     2    28    33    30   .02           |     353     501
sio  276|   -1     0    -7   -23    71   -19  -.40   20   19 |     ---     ---    ---    ---
        |    1     1     1    25    15    11   .03           |     ---     ---


Table 1.1710.b   GPS week : 1710   MJD: 56214.000-56220.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    4    4    4    4    4    4    4 |
   2  |    4    4    4    4    4    4    5 |
   3  |    4    3    4    4    3    6    3 |
   4  |    3    3    3    3    4    3    3 |
   5  |    5    4    5    4    4    4    5 |
   6  |    4    4    4    3    3    3    3 |
   7  |    4    4    4    4    4    5    5 |
   8  |    4    4    4    4    4    4    4 |
   9  |    4    4    4    4    4    4    4 |
  10  |    4    4    4    4    4    4    5 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    4    5    5    5    5    4 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    4    4    5    4    4    4 |
  15  |    5    4    4    4    4    5    4 |
  16  |    5    5    5    5    5    4    5 |
  17  |    4    4    4    4    4    4    4 |
  18  |    4    4    4    4    4    4    4 |
  19  |    4    4    4    4    4    4    3 |
  20  |    4    4    4    4    4    4    4 |
  21  |    4    4    4    4    4    4    4 |
  22  |    4    4    4    4    4    4    4 |
  23  |    4    4    4    4    5    4    5 |
  24  |   30   30   36   24   20   29   33 |
  25  |    5    5    5    5    5    5    5 |
  26  |    4    3    4    3    3    3    3 |
  27  |    5    5    7    0    0    0    0 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    4    5    4    4    4    5 |
  30  |    4    4    4    4    4    4    5 |
  31  |    5    5    5    4    5    5    5 |
  32  |    4    4    4    4    4    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 2.1710.0   GPS week: 1710   Day: 0   MJD: 56214.000                            

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  255|    0     0     0   -10    40     1  -.46    9    9 |    -995      99     19    107
emr   80|   -4    -3     5   -25    22    12   .27   16   16 |    3472   -1891     13     89
esa  174|    0     0     1   123  -104   -14  -.03    7    7 |     280   -2535     11    130
gfz  189|   -2     1    -4   -76   -88    11  -.45   13   12 |     991   -1188     19    145
grg  131|    2     0     5    21    67     0   .46   14   13 |     123    -193     15    176
igr  n/a|    0     0    -2   -46    73   -31  -.19    4    4 |    6490   -1794     18     99
jpl   80|    0    -3    -2   -20    42    13   .41   14   13 |    4225   -1938     19    126
mit  240|    0     1    -5     3    37   -18  -.18    8    7 |     -83     371     24    232
ngs  242|    1     0     2  -138    75     9   .40   10    9 |    -971       6   2193   3512
sio  272|    1     0    -8   -12    52   -32  -.40   20   19 |     ---     ---    ---    ---

Table 2.1710.1   GPS week: 1710   Day: 1   MJD: 56215.000                            

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  255|    0     0    -1    23    62    29  -.52   10   10 |    -752     328     18     78
emr   80|   -1     0     6   -16    54     4   .24   14   14 |    1380    1265     14     82
esa  174|    0     0     3   136   -77   -23   .02    6    6 |   -3007    4296     13    123
gfz  190|   -2    -1    -4  -191  -114    46  -.40   12   12 |    -656    1146     21    156
grg  131|    1     1     8   -20    75    18   .43   15   14 |    -538     758     15    129
igr  n/a|    0     0    -1   -17    87   -13  -.18    5    4 |    4496    1498     19     91
jpl   80|    1    -3    -2    16    65    42   .38   13   13 |    1958    1480     18    130
mit  240|    0     0    -3   -46     0   -29  -.15    7    7 |    -707    1197     22    193
ngs  239|   -1     0    -2   -57    41    -4   .36   10    7 |    -946     500   1693   3366
sio  270|    1     1    -7   -52    68   -10  -.45   21   19 |     ---     ---    ---    ---

Table 2.1710.2   GPS week: 1710   Day: 2   MJD: 56216.000                            

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     0    15    43    11  -.45   10   10 |    -520    -266     20     80
emr   80|   -1     1     5   -25    27    32   .26   15   15 |    1742     374     14     75
esa  174|    0     0     0   188  -110   -32   .02    7    7 |     593    -529     15    139
gfz  189|    0     0    -7  -170     8    48  -.43   12   12 |     181      56     23    153
grg  129|    2     1     6    -3    69    21   .43   15   15 |     -67     123     16    163
igr  n/a|    0     0     0    -7    63    -6  -.16    4    4 |    5073     404     19     96
jpl   80|    0    -1    -1     2    14    50   .42   13   13 |    2564     505     17    130
mit  240|    0     0    -2   -71    13   -43  -.16    6    6 |     163    -211     20    211
ngs  244|    1     0     2   -64    55    23   .37   11   10 |    -569    -197   1542   3372
sio  266|   -2    -1    -7   -62    60   -25  -.40   18   19 |     ---     ---    ---    ---

Table 2.1710.3   GPS week: 1710   Day: 3   MJD: 56217.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  257|    1     0     0   -40    30     0  -.45    9    9 |    -709    -677     17     79
emr   79|    0    -1     4   -37    -6    -4   .30   16   16 |    1766    -211     18     93
esa  174|    0     0     0   155  -130    -7   .05    8    7 |   -1205     527     14    152
gfz  192|   -2     0    -4   -56    87    14  -.38   11   11 |    -315     358     21    143
grg  130|    0     2     6     1    66   -49   .47   15   15 |      54     374     16    134
igr  n/a|    0     0    -3   -46    42    -9  -.16    5    5 |    5217    -755     16     91
jpl   80|    0     0     0    -7     9    40   .44   14   14 |    2911    -631     17    128
mit  240|    0     0    -3   -29    38   -18  -.16    7    7 |      -2    -193     23    194
ngs  245|    0     1     5   -92    -3    27   .38   11   11 |    -825    -325   1692   3303
sio  271|   -2     1    -9    -7    96    -3  -.41   19   18 |     ---     ---    ---    ---

Table 2.1710.4   GPS week: 1710   Day: 4   MJD: 56218.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  260|    1     0     1    11    77    -4  -.40   11   10 |    -506    -216     25     84
emr   80|    0    -1     4     0    61     0   .25   15   15 |    1189      87     50    125
esa  174|    0     0     0    43  -129     0   .05    6    6 |    -870     114     21    123
gfz  193|   -3     0    -4   -39   -28    -4  -.43   12   12 |    -239     271     27    160
grg  131|    0     0     7    20    87   -18   .36   16   15 |      38    -742     21    221
igr  n/a|    0     0    -2   -46    97   -28  -.16    5    4 |    4198    -424     25     99
jpl   80|   -1    -3     0     0    60   -10   .40   13   13 |    1957    -421     37    137
mit  240|    0     0    -3   -13    23     6  -.19    8    7 |      60    -164     24    155
ngs  243|    1     1     0   -85    79    10   .35   11   10 |    -455    -442   2056   3523
sio  289|   -1     1    -6     2    80   -34  -.39   18   20 |     ---     ---    ---    ---

Table 2.1710.5   GPS week: 1710   Day: 5   MJD: 56219.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  260|    0     0     1    23    62    14  -.46   10   10 |   -1916    1355     19     93
emr   79|   -1     0     4    -1    49     0   .30   15   15 |    1531    -254     17    130
esa  174|    0     0     0   103   -87     6   .08    7    7 |   -2119    2353     93    154
gfz  189|   -1     1    -2  -135   -78    -7  -.40   12   12 |    -110     570     24    156
grg  130|    1     3     4    12    46   -12   .36   17   16 |    -204     152     18    151
igr  n/a|    1     0     0    -2   122   -39  -.14    4    4 |    4017    -323     19    100
jpl   80|   -1    -1     0    35    69    13   .45   13   13 |    1834    -130     18    120
mit  240|    0     0    -2   -33   -27     5  -.17    6    6 |    -628     594     19    209
ngs  242|    0    -2     2   -64   100   -29   .37   12   10 |   -1486     708   1625   3257
sio  282|   -1     0    -5   -29    61   -15  -.35   20   19 |     ---     ---    ---    ---

Table 2.1710.6   GPS week: 1710   Day: 6   MJD: 56220.000                            

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|    2     0     0    39    37     6  -.43   11   11 |   -1069     596     21     95
emr   79|    0     0     3   -16     8    -8   .29   15   15 |     638    1766     16    100
esa  174|    1     0     1    72  -136    12   .06    7    7 |   -2965    3080     10    106
gfz  185|   -3     1    -3  -105    38   -14  -.39   12   12 |    -465     842     23    161
grg  130|    0     0     6    31    91   -37   .38   17   17 |    -537    1223     18    137
igr  n/a|    0     0     0    -4    55   -43  -.16    4    4 |    3390    1623     17     91
jpl   80|   -2     0    -3    -3    43     8   .44   14   13 |    1286    1714     17    122
mit  240|    0     0    -1     1    24    22  -.21    6    5 |    -554     670     20    223
ngs  237|    0    -1     1   -99    41   -56   .35   10    8 |   -1198     747   1798   3354
sio  286|   -2     1    -6     0    79   -14  -.42   22   19 |     ---     ---    ---    ---

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

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

Table 3.1710.0   GPS week: 1710   Day: 0   MJD: 56214.000                            

        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   19    9   10   12    4   12   10    9   15    4 |    26   25   33   28   42   29   44   31   38   30    32
   2  |    8   18    7   15   13    5   15    8   11   23    4 |    18   28   24   24   28   19   24   19   23   19    20
   3  |    8   11    5   14   12    5   11    6   13   25    3 |    26   30   27   24   33   28   31   27   38   22    27
   4  |   10   11    5    9   11    3   10    6   11   21    3 |    17   20   21   28   17   20   18   20   20   21    18
   5  |   10   19    5   11   17    3   18    9    9   16    4 |    41   49   44   46   48   41   43   43   45   38    42
   6  |    9   10    6   16    9    4    9    6   11   17    3 |    20   24   23   27   26   20   28   22   23   23    21
   7  |    9   18    7   10   14    3   15    8    9   16    4 |    34   39   33   34   38   36   38   37   37   34    34
   8  |    9   13    4   12   13    5    9   10   10   18    3 |    15   20   15   19   16   12   15   14   20   20    13
   9  |   10   12    6   14   15    6    9    7    9   17    3 |    13   23   19   20   24   18   24   17   23   18    17
  10  |    7   11    5   14   13    3   10    8   12   28    3 |    19   21   18   29   17   20   20   22   26   28    20
  11  |    8   13    6   11   16    5   14    6   12   10    4 |    26   38   32   31   45   28   40   28   33   31    31
  12  |    9   20    9   12   17    7   17    9    9   17    4 |    35   45   36   37   37   35   37   36   35   38    35
  13  |    6   13    6   11   15    4   13    7   10   20    3 |    24   31   27   26   34   24   30   25   25   23    25
  14  |   10   13    8   14   15    4   12    5   12   17    4 |    26   30   29   30   32   25   28   25   32   27    26
  15  |   11   16    7   12   15    3   18    9   11   20    4 |    25   32   31   28   35   25   31   24   30   17    26
  16  |   10   19    6   15   15    5   16    9   11   20    4 |    34   40   32   27   42   30   37   29   36   29    31
  17  |   10   17    6   13   12    4   16    8    9   33    4 |    23   28   26   31   24   23   25   22   24   23    22
  18  |    7   15   10   14   15    4   14    6    8   13    4 |    28   30   27   32   27   27   29   27   29   29    25
  19  |   10   15    7   12   10    3   13    8   12   24    4 |    19   29   24   22   24   20   27   19   24   19    19
  20  |    9   14    5   10   13    3   16    7    8   13    3 |    59   62   59   61   64   58   60   57   59   63    59
  21  |    6   12    7   12   17    5   11    7   12   15    3 |    17   18   13   21   19   11   17   12   15   14    13
  22  |    8   18    8   17   17    5    9    5    7    9    4 |    39   39   36   43   38   36   38   38   36   41    35
  23  |   11   14    7   10   12    4   14    7   14   23    4 |    37   40   34   36   38   33   39   34   39   35    35
 X24  |   21  ---  ---  ---   40   72  ---  ---  ---  ---   29 |   ---  ---  ---  ---   51   40  ---  ---  ---  ---    87
  25  |   11   27    8   10   17    6   15    7    5   24    4 |    35   43   38   34   35   33   37   32   34   43    34
  26  |    8   13    7   15   12    4    8    5   13   15    3 |    18   25   25   26   30   19   25   21   21   19    21
 X27  |    9   16    9   17   16    7   10    9  ---  ---    4 |    27   15   13   17 9999   25   16   13  ---  ---    32
  28  |    5   16    5   15   17    3   12    6    9   13    3 |    23   30   25   27   32   22   25   23   26   26    23
  29  |   12   19    6   12   14    4   18    8    9   31    4 |    26   29   18   26   20   21   27   23   23   22    21
  30  |   10   15    6   10   14    4   12    7    8   29    3 |    30   31   29   29   29   27   29   27   30   37    28
  31  |   13   21    6   14   17    4   18    8   10   15    4 |    20   26   18   22   28   16   24   14   22   15    16
  32  |   11   19    6   10   13    5   12   10    9   22    4 |    27   31   24   28   24   24   32   24   26   29    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   16    7   13   14    4   14    8   10   20      |T   26   31   27   29   32   26   30   25   29   27    28
 WRMS |    9   16    7   12   13    4   13    7    9   19      |NE  20   26   24   25   30   22   27   21   25   21    27
 MEDI |    9   15    6   12   14    4   13    7   10   17      |MD  26   30   27   28   32   25   29   24   26   26    25

Table 3.1710.1   GPS week: 1710   Day: 1   MJD: 56215.000                            

        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   19    6   11   12    4   12    5    9   13    4 |    24   22   30   30   39   25   39   28   33   27    29
   2M |    9   17    8   13   14    4   13    7   11   30    4 |    26   29   29   29   33   25   28   25   32   31    26
   3M |    9    8    5   11    9    3    9    5    6   23    2 |    32   34   33   31   33   31   34   30   37   33    31
   4  |   10    9    6    8   11    4    9    7   10   19    3 |    16   16   13   22   14   15   18   17   18   19    14
   5  |    8   16    6    8   16    5   15   12    9   13    4 |    28   31   27   27   36   26   31   24   33   24    26
   6M |    9    8    5   14   10    3    9    7   11   17    3 |    21   25   22   25   26   21   28   21   31   23    21
   7M |    8   15    7    9   24    5   16    7   10   18    4 |    66   68   69   69   58   67   69   67   69   64    66
   8  |   10   11    5   11    9    6   12    8    8   15    3 |    16   17   12   16   13   10   19   13   16   20    12
   9  |   11   10    5   13   16    6   10    9    8   17    3 |    12   20   13   15   21   14   19   18   20   19    13
  10  |    8   13    5   12   12    4   11    8    8   28    3 |    20   22   18   27   20   19   18   20   19   25    18
  11  |    6   16    7   10   15    4    9    6   10   11    3 |    21   35   25   26   40   22   33   24   27   25    25
  12M |    8   16    6   13   15    4   14    8   11   38    4 |    33   38   33   37   40   30   35   33   36   38    34
  13M |    7   12    5   12   21    4   11    6   12   14    3 |    19   28   19   25   33   16   29   19   26   13    21
  14M |   10   14    4   16   14    4   14    5    9   16    3 |    28   31   26   27   28   22   29   21   25   28    23
  15  |   14   12    5   11   15    6   16    8    7   18    4 |    20   27   21   23   31   19   27   20   26   16    20
  16M |   10   17    7   12   20    5   16    7   10   20    4 |    24   31   24   26   33   20   25   20   24   22    22
  17  |    8   15    8   13   12    3   14    7   11   31    4 |    14   21   17   25   16   15   21   18   15   21    15
  18  |    6   11    5   14   15    3   12    5   10   12    3 |    26   24   24   23   20   23   23   20   28   24    21
  19  |   10   13    7    8    8    5   11    6   11   23    3 |    17   21   16   19   17   14   23   13   20   14    14
  20E |   14   14    6   14   20    7   12    9   10   11    4 |    81   82   82   78   82   77   81   79   81   79    81
  21M |    5   11    6   12   20    4   10    5   10   11    3 |    18   20   13   15   22   13   19   12   19   14    14
  22  |   10   13    5   14   16    3    9    5    8    8    3 |    30   28   26   28   27   25   27   23   30   28    24
  23M |    9   15    7   11   14    5   15    6   11   25    4 |    29   32   28   22   29   23   32   23   30   29    25
 X24  |   20  ---  ---  ---   42   74  ---  ---  ---  ---   29 |   ---  ---  ---  ---   50   52  ---  ---  ---  ---   114
  25M |   11   28    8   10   16    7   17    7   12   27    5 |    39   42   36   39   41   34   41   35   35   44    36
  26  |   11   10    5   11   11    4    7    6    6   14    3 |    18   23   21   22   25   20   24   21   22   22    19
 X27M |   14   14    8   15 >>>>    8   12    9  ---  ---    5 |    27   14   15   14 9999   35   17   13  ---  ---    29
  28  |    6   14    6   16   17    5   10    8    9   10    3 |    19   22   19   26   27   16   20   19   20   21    18
  29M |   15   15    7   11   14    4   15    7    6   33    4 |    25   22   16   18   14   16   23   17   20   19    16
  30M |   10   13    8   12   15    3   14    6   12   21    4 |    54   51   51   54   54   48   50   52   50   52    52
  31  |   11   18    9   14   17    4   19    7   12   11    4 |    17   24   19   20   26   11   27   14   24   16    14
  32M |    8   17    6   10   11    5   12    8    8   25    3 |    29   30   29   28   25   25   30   24   30   35    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14    6   12   15    5   13    7   10   21      |T   27   30   26   28   31   25   30   25   29   28    28
 WRMS |   10   14    6   12   14    4   13    7    7   19      |NE  17   22   18   22   26   19   24   18   21   20    25
 MEDI |   10   14    6   12   15    4   12    7   10   17      |MD  24   27   24   26   28   22   27   21   26   24    22

Table 3.1710.2   GPS week: 1710   Day: 2   MJD: 56216.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9   18    6   11   15    3   11    6   10   15    3 |    25   24   30   26   39   27   41   29   35   29    29
   2  |    8   19    8   14   16    5   16    6   11   23    4 |    23   28   24   26   27   24   27   25   28   27    22
   3  |    9   11    5   10   12    3   10    5   14   22    3 |    30   36   31   35   30   30   35   32   33   25    30
   4  |    8   12    6    9   12    3    8    6    9   17    3 |    20   21   20   23   18   21   22   25   26   23    19
   5  |   10   18    8   11   18    6   17    8   12   15    4 |    29   35   24   27   29   26   32   29   30   29    25
   6  |   11   10    6   13   10    3   11    5   15   15    3 |    26   31   26   27   28   23   33   26   23   21    24
   7  |   11   14    7   12   17    5   17    8   11   13    4 |    27   32   24   29   33   28   31   33   32   25    26
   8  |    9   17    5   12   13    5   11    9   10   14    4 |    16   22   15   20   15   14   20   17   22   22    13
   9  |   10   10    8   13   15    5   10    6    6   18    3 |    14   20   20   16   21   15   22   19   22   22    15
  10  |    8   16    5   13   14    3   10    7   10   26    3 |    22   25   22   29   19   22   24   24   24   27    21
  11  |    9   14   10    7   18    3    9    5   11   15    3 |    23   38   30   29   41   27   38   29   31   31    28
  12  |   11   17    6   13   17    5   16    9   11   17    4 |    33   37   35   34   39   31   35   35   34   33    32
  13  |    8   13    7   12   17    4   11    4   11   15    3 |    21   30   19   21   35   21   31   23   25   16    21
  14  |   10   13    7   10   16    3   13    6   12   16    3 |    26   32   24   25   28   23   30   27   28   29    24
  15  |   12   14    7   11   16    4   17    6    9   19    4 |    21   29   24   22   31   21   30   24   29   19    23
  16  |   13   18    7   13   16    5   15    7   11   18    4 |    29   35   25   26   33   25   31   27   33   28    26
  17  |   13   17    8   13   10    4   16    7   10   28    4 |    22   27   21   28   23   22   27   27   23   26    20
  18  |   10   13    5   12   17    4   13    5   12   15    3 |    25   29   25   25   30   28   28   28   33   29    25
  19  |   10   13    7    8   10    3   14    6   12   22    3 |    21   26   19   20   20   17   28   22   25   17    18
  20E |    8   15    7   11   14    7   14    7   10   13    3 |    59   63   60   58   63   58   63   59   59   61    58
  21  |    8   13    5   11   18    4   11    4   12   11    3 |    17   21   14   15   21   13   19   17   20   20    12
  22  |   10   13    6   11   18    3   10    6    8   15    3 |    28   25   21   24   28   24   25   25   23   25    22
  23  |   10   15    8   10   13    5   16    4   11   21    3 |    33   35   30   30   36   31   39   31   32   31    30
 X24  |   25  ---  ---  ---   48   56  ---  ---  ---  ---   35 |   ---  ---  ---  ---  114   84  ---  ---  ---  ---   113
  25  |   11   25    8    8   17    4   16    8   11   18    4 |    32   32   35   30   37   31   37   33   36   39    31
  26  |   10   10    7   11   12    4    9    6   10   12    3 |    14   19   18   14   22   15   20   17   19   19    15
 X27  |   19  ---    8   16  ---   10   13    9  ---  ---    6 |    39  ---   12   14  ---   45   21   12  ---  ---    36
  28  |    8   18    6   14   15    4   13    7    7   11    4 |    21   29   20   26   29   21   28   24   26   25    20
  29  |   14   17    8   13   16    5   17    9   13   28    4 |    26   25   20   24   22   19   28   23   24   18    19
  30  |   12   13    8   14   17    6   11    8   10   29    4 |    29   34   25   25   29   26   33   27   32   32    26
  31  |   12   19    9   14   17    4   18    5    9   12    4 |    24   27   19   20   29   18   27   21   25   17    18
  32  |    8   12    8   11   12    7   13    8   11   19    3 |    21   25   23   23   23   21   30   23   24   27    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    7   12   15    4   13    6   11   18      |T   25   29   24   25   32   26   30   26   28   26    26
 WRMS |   10   15    7   12   15    4   13    6   10   19      |NE  20   25   21   22   33   25   27   23   25   22    27
 MEDI |   10   14    7   12   16    4   13    6   11   16      |MD  25   29   24   25   29   23   30   25   26   25    23

Table 3.1710.3   GPS week: 1710   Day: 3   MJD: 56217.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   19    7   12   15    5   11    6    9   16    4 |    34   33   36   32   41   36   45   34   41   37    35
   2  |    7   18   10   13   14    5   17    6   11   23    4 |    18   30   24   22   26   23   27   21   26   22    19
   3  |    8    9    6   11   12    3   12    6   13   20    3 |    46   53   46   45   49   48   52   48   54   43    47
   4  |    7   12    5    9   13    4   10    6    6   19    3 |    21   25   23   23   23   25   25   23   26   22    20
   5  |    7   18    7    9   22    4   18    7    9   17    4 |    22   35   24   26   35   25   34   25   29   25    23
   6  |    8   10    5   12   10    3    8    5   14   12    3 |    18   31   25   25   27   23   31   23   25   21    22
   7  |   11   17    5   13   15    4   17    8   11   13    4 |    41   50   43   42   49   45   47   45   51   44    41
   8  |    9   13    5   12   12    5   12    8   11   16    3 |    17   27   16   19   17   21   23   18   25   23    16
   9  |    8   14   11   14   14    5   13    7   13   18    4 |    19   29   22   17   28   20   26   19   28   23    17
  10  |    8   15    4   10   19    5   10    6   12   27    3 |    29   35   30   32   30   32   31   31   33   34    29
  11  |    8   14    8   10   17    4   10    5   16   12    4 |    27   39   31   31   43   31   38   30   39   34    31
  12  |    9   20   10   18   21    6   20    8   13   22    5 |    40   46   41   44   41   41   42   41   45   41    39
  13  |    7   13    6   13   18    3   13    5   11   13    3 |    27   37   28   30   40   29   37   28   30   23    28
  14  |   10   14   11   14   17    6   13   10   13   17    4 |    25   32   29   29   35   28   30   24   31   26    25
  15  |    9   12    7    9   15    6   17    7    8   20    3 |    27   34   30   27   37   27   36   24   32   24    26
  16  |   13   18   10   12   14    4   16    7   14   19    4 |    28   33   24   23   34   26   32   26   35   27    25
  17  |   16   15    6   11   13    2   15    8   10   30    4 |    21   31   26   25   22   25   30   24   29   26    21
  18  |    6   16    7   11   16    4   15    6   11   13    4 |    72   71   69   72   73   68   71   68   70   68    69
  19  |    9   15    8   10    9    4   12    7   15   22    4 |    20   31   25   23   25   22   26   20   22   20    20
  20E |    9   16    7   12   11    5   14    9   12   11    4 |    58   60   57   56   59   59   61   55   58   59    57
  21  |    6   11    7    7   17    4   13    6   11   16    3 |    19   25   20   19   27   20   24   19   22   20    19
  22  |    7   15    8   12   17    4   10    6    7   14    3 |    48   50   49   52   50   46   47   46   50   47    47
  23  |   11   16    8   11   13    5   17    5   10   21    4 |    31   37   30   29   32   31   38   30   32   29    30
 X24  |   14  ---  ---  ---   37   64  ---  ---  ---  ---   24 |   ---  ---  ---  ---  141  157  ---  ---  ---  ---   135
  25  |   13   25    9    9   21    6   17    8   15   24    5 |    53   54   50   50   49   47   49   47   51   58    48
  26  |    6    9    7   10   14    5    9    7   11   12    3 |    22   31   27   28   33   26   28   25   30   24    24
 X27  |    7  ---  ---  ---  ---  415  ---  ---  ---  ---    0 |    79  ---  ---  ---  ---  125  ---  ---  ---  ---    82
  28  |    7   16    5   13   15    3   13    6   11   12    3 |    23   34   26   26   30   27   32   25   29   24    24
  29  |    9   15    8   10   16    5   17    7   12   31    4 |    29   34   31   30   30   30   35   30   32   28    29
  30  |   11   12    7   10   14    6   11    6    9   27    3 |    44   43   43   41   40   39   41   41   47   42    42
  31  |    9   17    6   12   18    3   18    7    8   15    4 |    20   29   18   19   28   20   27   19   26   18    18
  32  |    8   20    8   10   13    4   12    6   10   18    4 |    29   36   26   27   25   29   36   27   32   34    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   16    8   11   15    5   14    7   11   19      |T   32   37   32   32   39   39   36   31   36   32    35
 WRMS |    9   16    7   11   15    5   14    7   11   18      |NE  22   31   25   24   39   36   30   23   29   25    32
 MEDI |    8   15    7   11   15    4   13    6   11   17      |MD  27   34   28   28   34   29   34   26   32   26    28

Table 3.1710.4   GPS week: 1710   Day: 4   MJD: 56218.000                            

        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  |   13   20    6   11   15    5   14    6   12   11    4 |    28   21   29   25   40   27   40   29   36   30    31
   2  |    8   20    6   14   15    6   16    5    9   22    4 |    18   29   19   20   25   19   26   19   27   21    19
   3  |   11    7    2   11   12    4    9    6   10   24    3 |    45   47   47   42   46   45   49   45   47   45    44
   4  |    7   12    7    9   15    4   10    8    5   20    3 |    16   19   17   20   15   16   15   18   18   17    16
   5E |    9   17    6    9   11    5   19   10    9   18    4 |    31   39   33   34   39   33   41   34   40   36    32
   6  |   11    8    4   12   11    3    9    7   12   17    3 |    21   28   24   24   26   22   28   24   28   20    25
   7  |   11   16    5   11   18    4   15    8   11   14    4 |    17   25   20   22   30   18   26   19   28   15    20
   8  |    7   14    5   13   14    6   14   10   12   18    4 |    13   21   14   14   15   13   18   17   22   22    14
   9  |    9   12    7   14   15    5   14    6   11   15    3 |    18   23   19   17   22   16   24   17   24   16    17
  10  |    7   17    5   11   21    4   11    7    9   29    4 |    25   29   20   25   31   22   24   25   23   28    23
  11  |    8   14    6   10   19    3    9    7   15    8    4 |    23   34   25   26   39   24   34   26   27   26    28
  12  |   11   19    6   11   19    6   17    9   14   16    4 |    30   39   35   32   32   35   37   38   38   34    34
  13  |    9   14    6   12   18    3   12    7   11   16    4 |    24   29   26   24   35   23   30   26   23   15    24
  14  |   11   14    5   20   14    5   12    9    9   15    4 |    23   28   22   28   27   22   28   23   24   20    22
  15  |   10   11    6   13   17    4   15    6   13   19    4 |    18   25   21   20   31   18   26   19   25   17    19
  16  |   12   21    6   12   15    6   15   10   10   18    4 |    21   28   20   25   29   19   26   26   26   19    22
  17  |   10   18    8   12   13    3   16    9    8   28    4 |    17   22   20   24   17   20   22   21   21   22    18
  18E |   18    9    5   13   13    9   11    7   10   12    4 |   104  105  104  105  104  101  105  106  103  102   102
  19  |    9   12    5   10   10    3   13    8   12   23    3 |    19   25   20   22   18   17   27   21   18   16    20
  20E |   11   13    5   11   22    3   14    7    8   13    4 |    36   35   35   35   36   34   35   33   33   35    33
  21  |    9   12    4   10   16    3   10    7   11   19    3 |    18   20   14   19   21   15   18   17   19   24    16
  22E |   11   10    5   13   16    5    8    7    6    7    3 |    69   72   73   75   75   71   75   74   72   73    70
  23  |   14   16    9   12   15    4   16    7   12   23    4 |    25   28   23   23   27   22   28   24   23   15    22
 X24  |   15  ---  ---  ---   27   75  ---  ---  ---  ---   20 |   ---  ---  ---  ---  156  162  ---  ---  ---  ---   150
  25  |   17   25    7   12   19    4   16    7   11   19    5 |    37   40   38   37   36   38   38   38   39   37    35
  26  |    9    9    4   10   13    3    7    6   14   10    3 |    17   21   18   20   26   17   23   19   20   19    17
 X27  |    8  ---  ---  ---  --- >>>>  ---  ---  ---  ---    0 |   447  ---  ---  ---  ---  568  ---  ---  ---  ---   447
  28  |    8   15    6   13   17    4   13    8    9   11    4 |    19   25   21   23   28   21   25   23   23   23    20
  29  |    9   15    7    9   15    7   18   10   11   28    4 |    23   28   24   23   20   25   28   29   28   21    24
  30  |   11   11    7   10   13    3   10    9   12   24    3 |    29   32   29   31   29   29   30   36   29   31    30
  31  |   10   16    6   13   22    4   17    9   13   15    4 |    18   25   18   22   29   17   26   19   25   18    17
  32  |   11   13    5   10   16    4   11    7    9   17    3 |    24   27   18   20   21   18   25   20   21   25    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    6   12   16    5   13    8   11   18      |T   41   32   28   29   36   48   32   29   31   28    44
 WRMS |   10   15    6   12   15    4   13    7   10   20      |NE  18   23   20   21   36   30   25   20   23   20    30
 MEDI |   10   14    6   11   15    4   13    7   11   17      |MD  23   28   21   24   29   22   27   24   25   22    22

Table 3.1710.5   GPS week: 1710   Day: 5   MJD: 56219.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9   19    8   11   14    5   12    6   12   14    4 |    30   30   37   30   42   32   43   32   41   37    36
   2  |   11   16    6   14   17    5   15    6   10   22    4 |    20   21   17   20   23   15   22   15   24   22    17
   3  |   17   19    8   12   37    8   16    7   17   31    6 |    73   68   69   62   60   66   68   64   67   68    65
   4  |    7   13    6   10   12    4    9    5   10   18    3 |    17   18   16   22   17   14   16   17   15   16    16
   5E |    8   16    5   10   11    3   15    7    8   12    3 |    32   33   32   34   33   29   33   29   34   31    30
   6  |   10    9    6   11   12    2    9    4   10   13    3 |    18   25   24   15   22   21   28   18   26   17    19
   7  |   12   14    9   11   23    4   18    5   10   14    4 |    36   40   38   34   44   35   43   35   39   37    35
   8  |    8   17    8   13   18    4   12    9   13   16    4 |    16   22   16   16   16   10   20   13   18   20    13
   9  |    8   16    6   14   14    4   10    6   10   22    3 |    14   23   12   18   21   10   20   15   20   17    14
  10E |   10   18    6   15   17    4   13    7   13   31    4 |    29   35   29   39   33   29   32   32   29   34    31
  11  |    8   14    8    8   16    5   10    6   14   12    3 |    22   40   27   24   40   23   38   26   31   27    28
  12  |    8   18    9   13   15    4   17    6   12   14    4 |    29   32   32   32   34   29   31   29   38   24    30
  13  |    9   13    8   11   20    5   13    5    8   18    3 |    24   29   23   23   34   21   31   23   23   13    24
  14  |    9   12    6   12   18    4   13    8   12   16    4 |    23   27   26   21   25   21   28   18   25   21    20
  15  |   14   13    9   12   18    2   13    7   13   23    4 |    22   24   21   24   32   18   28   18   25   18    21
  16  |    9   15    8   12   20    4   14    6   13   18    4 |    20   24   20   21   26   18   26   19   25   19    19
  17  |    9   16    7   12   14    4   14    5    8   29    3 |    19   21   15   21   19   14   20   17   15   17    17
  18E |    7   13    7   12   16    4   14    6   10   12    3 |    48   47   46   40   46   47   51   45   46   44    43
  19  |   12   12    8    8   13    3   11    5   15   24    3 |    18   25   19   18   20   15   26   17   25   15    17
  20E |   10   12    6   11   14    4   13    7   14   10    4 |    29   31   30   25   31   26   31   26   30   23    28
  21  |    8   12    7   11   18    4   12    6    8   27    3 |    17   25   17   19   25   16   25   18   19   32    16
  22E |    8   13    7   11   15    4   12    7    8    7    3 |    30   31   27   27   28   28   31   27   27   28    25
  23  |   11   14    8   14   16    6   15    7   13   23    4 |    24   26   22   19   25   18   28   19   21   11    19
 X24  |   18  ---  ---  ---   43   50  ---  ---  ---  ---   28 |   ---  ---  ---  ---  110   95  ---  ---  ---  ---    98
  25  |   17   23    8    9   18    3   16    7   13   21    5 |    31   27   25   26   29   24   29   26   33   28    24
  26  |    9    9    5   10   14    3    8    6   15   14    3 |    24   26   23   27   30   21   29   24   25   26    24
 X27  |    8  ---  ---  ---  ---   70  ---  ---  ---  ---    0 |   216  ---  ---  ---  ---  257  ---  ---  ---  ---   216
  28  |    5   13    6   12   19    4   10    7   10   13    3 |    20   23   19   20   26   16   23   18   19   19    19
  29  |   11   18    9   12   14    5   16    7    9   30    4 |    24   30   19   22   20   17   24   20   25   19    21
  30  |   10   11    9    9   13    3   11    7   10   21    3 |    33   36   33   33   32   32   39   35   36   39    33
  31  |   13   14    7   12   23    6   14    8   13   16    4 |    20   26   17   18   28   15   23   13   22   16    15
  32  |    9   19    6   10   15    5   12    6    9   18    3 |    24   31   23   22   26   20   30   23   24   29    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    7   12   17    4   13    6   12   20      |T   32   29   25   25   32   32   30   24   28   25    33
 WRMS |   10   15    7   12   16    4   13    6   10   19      |NE  20   25   20   21   33   23   26   19   23   20    26
 MEDI |    9   14    7   11   16    4   13    6   10   18      |MD  24   27   23   22   28   21   28   20   25   22    24

Table 3.1710.6   GPS week: 1710   Day: 6   MJD: 56220.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9   17    7   10   17    3   13    5   13   21    4 |    31   32   36   30   46   33   48   33   40   42    34
   2  |    8   21    9   17   17    5   15    5   11   28    4 |    23   31   21   20   26   21   28   21   26   34    20
   3  |   11    9    4   10   13    5    8    6   10   24    3 |    54   53   53   54   51   54   52   53   52   55    52
   4  |    8   13    5   10   12    4    8    6   12   20    3 |    17   23   16   19   17   16   20   18   18   17    15
   5E |   12   19    6   13   17    6   18    5   10   14    4 |    36   34   29   31   31   31   34   28   34   27    28
   6  |   11    9    4   13   11    4    8    4   10   15    3 |    20   29   25   28   28   24   30   25   32   23    25
   7  |   13   16    7   13   22    4   18    5   10   15    4 |    24   31   23   23   32   22   32   24   27   21    23
   8  |    7   15    5   10   17    5   10    6    7   18    3 |    15   25   17   15   23   16   24   17   22   25    15
   9  |   11   16    5   13   15    4   11    6   11   26    3 |    17   23   15   18   25   15   22   16   21   19    15
  10E |   12   19    6   15   17    5   15    7   12   29    4 |    30   39   28   26   38   28   35   28   33   29    29
  11  |    8   13    8   10   19    4   12    5   13   15    3 |    26   41   32   30   44   29   41   31   32   34    31
  12  |   13   17    5   13   19    5   17    6   11   18    4 |    31   33   27   26   35   25   31   26   32   25    26
  13  |    8   14    7   13   21    3   14    4   10   18    4 |    25   35   28   28   40   26   34   26   30   22    26
  14  |   13   12    5   12   20    4   14    6    9   20    4 |    25   27   21   27   33   20   27   19   25   18    21
  15  |    9   14    8   11   18    6   16    6    7   27    4 |    19   27   24   24   36   21   28   20   26   27    21
  16  |   12   19    8   14   18    4   16    5    8   17    4 |    25   32   24   23   30   22   28   23   28   21    23
  17  |    9   16    6   11   11    4   13    5    7   29    3 |    25   28   21   28   21   21   26   21   22   25    22
  18E |   11    9    7   13   16    3   14    4    8   14    3 |    42   44   42   41   44   41   42   42   41   45    39
  19  |   13   11    4   10   12    5   11    4    8   28    3 |    23   28   24   23   22   21   27   20   25   22    22
  20E |    9   14    6    9   13    3   12    7    9   12    3 |    50   53   51   52   52   50   54   52   53   57    51
  21  |    7   13    7   13   16    4   12    4    8   27    3 |    15   25   16   17   25   12   21   14   17   27    14
  22E |    7   17    6   11   17    3   10    4    9   17    3 |    49   48   47   47   49   47   50   48   43   53    46
  23  |   13   17    9   13   18    3   16    5   10   24    4 |    30   34   30   28   35   27   33   29   30   29    27
 X24  |   23  ---  ---  ---   46   60  ---  ---  ---  ---   32 |   ---  ---  ---  ---  146  107  ---  ---  ---  ---   137
  25  |   16   21    9   11   21    4   16    6   10   28    4 |    52   49   49   47   54   48   51   49   52   56    48
  26  |    9   10    6   10   14    4    8    4    8   12    3 |    21   22   19   21   29   18   23   19   20   21    19
 X27  |    7  ---  ---  --- >>>>  112  ---  ---  ---  ---    0 |   209  ---  ---  ---  504  241  ---  ---  ---  ---   209
  28  |    7   12    6   12   18    4   10    6    8   10    3 |    22   26   22   21   28   21   27   21   29   23    21
  29  |   14   13   11   13   14    4   16    7   12   33    4 |    23   27   29   29   24   22   26   23   27   20    23
  30  |   15   15    8   13   25    8   14    9   11   36    4 |    63   67   61   55   69   56   67   57   64   61    59
  31  |   14   15    8   14   25    5   14    7   10   16    4 |    16   24   15   17   32   15   23   14   22   17    13
  32  |   10   12    6   10   18    4   14    5   10   24    3 |    23   29   21   20   31   21   31   20   24   34    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    7   12   17    4   14    6   10   22      |T   34   33   28   28   53   36   33   27   31   30    36
 WRMS |   11   15    7   12   17    4   13    5    8   19      |NE  21   27   21   22   39   27   28   20   25   24    30
 MEDI |   11   14    6   12   17    4   14    5   10   20      |MD  25   31   24   26   32   22   30   23   28   25    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 4.1710   GPS week: 1710   MJD: 56214.0-56220.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |U    5     5    13 |U    6     9    22 |U    7     8    19 |
emr | emr 2906 |     7     6    18 |U    8     8    25 |    10    12    22 |
esa | esa 2921 |     5     5    15 |U    6     9    23 |     8    10    20 |
gfz | gfz 2919 |U    5     5    15 |U    6     8    23 |U    8     9    19 |
grg | grg 2989 |U    8     8    20 |U    8    12    29 |    10    11    26 |
igr | igr 2929 |     5     5    15 |     6     8    22 |     8     9    18 |
igs | igs 2989 |     5     6    15 |     6     8    22 |     8    10    20 |
jpl | jpl 2920 |     6     6    19 |U    7     8    24 |    10    11    22 |
mit | mit 2921 |     6     5    14 |U    6     9    24 |U    9    10    23 |



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 5.1710.0   GPS week: 1710   Day: 0   MJD: 56214.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     4    12 |     6     9    16 |     7     8    21 |
emr | emr 2976 |     5     5    16 |     6     8    16 |     8     8    23 |
esa | esa 2976 |     4     4    13 |     5     9    17 |     7     8    21 |
gfz | gfz 2975 |     4     3    12 |     6     8    17 |     7     7    21 |
grg | grg 3070 |     7     6    19 |     7    13    24 |    11    11    27 |
igr | igr 2976 |     4     4    13 |     5     9    17 |     7     7    19 |
igs | igs 3072 |     4     4    12 |     5     9    16 |     8     9    23 |
jpl | jpl 2976 |     4     4    18 |     6     7    17 |     8     9    21 |
mit | mit 2976 |     4     4    13 |     5     9    17 |     8     8    24 |

Table 5.1710.1   GPS week: 1710   Day: 1   MJD: 56215.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     6     4    14 |     6     8    21 |     5     8    18 |
emr | emr 2976 |     7     5    20 |     7     7    26 |     7    10    21 |
esa | esa 2976 |     6     4    16 |     6     9    24 |     6    10    18 |
gfz | gfz 2976 |     6     4    17 |     6     8    23 |     6     9    19 |
grg | grg 2976 |    11    10    19 |     8    12    29 |    11    11    24 |
igr | igr 2976 |     6     4    16 |     6     7    20 |     7     9    17 |
igs | igs 3072 |     6     4    14 |     6     8    23 |     6     9    18 |
jpl | jpl 2976 |     5     4    17 |     7     9    22 |     8    10    18 |
mit | mit 2976 |     6     4    16 |     6     8    27 |     7     8    21 |

Table 5.1710.2   GPS week: 1710   Day: 2   MJD: 56216.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7     9    17 |     5    11    21 |     8     7    18 |
emr | emr 2880 |     7     8    20 |     8     9    23 |    10    12    24 |
esa | esa 2976 |     6     8    18 |     6     9    23 |    10     9    18 |
gfz | gfz 2975 |     6     8    17 |     6     8    24 |     9     8    18 |
grg | grg 2976 |     7     8    17 |     7    14    29 |    10     7    22 |
igr | igr 2976 |     6     8    17 |     6     8    22 |    10     9    18 |
igs | igs 3035 |     7     8    17 |     6     9    21 |     9     9    19 |
jpl | jpl 2976 |     6     9    20 |     6     8    24 |    10    10    22 |
mit | mit 2976 |     6     7    17 |     7     8    24 |     9     8    18 |

Table 5.1710.3   GPS week: 1710   Day: 3   MJD: 56217.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
emr | emr 2880 |     7     8    26 |    10     8    28 |    11    14    25 |
esa | esa 2880 |     5     5    20 |     7    12    25 |     8    11    24 |
gfz | gfz 2880 |     6     6    21 |     7     9    24 |     8    11    24 |
grg | grg 2975 |     6     6    22 |     8    13    25 |     8    10    28 |
igr | igr 2941 |     6     5    21 |     7    10    24 |     8    11    22 |
igs | igs 2976 |     5     5    21 |     7    10    24 |     9    13    26 |
jpl | jpl 2880 |     6     7    25 |     7    11    26 |     9    14    26 |
mit | mit 2880 |     8     6    21 |     8    10    26 |     9    12    35 |

Table 5.1710.4   GPS week: 1710   Day: 4   MJD: 56218.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     5    11 |     9     9    30 |     6     6    17 |
emr | emr 2880 |     6     5    16 |    11     8    30 |    10    10    18 |
esa | esa 2880 |     5     7    12 |     9     9    29 |     7     7    16 |
gfz | gfz 2878 |     6     4    11 |     9     7    30 |     7     6    15 |
grg | grg 2976 |    11     9    24 |    10    11    37 |     8     6    28 |
igr | igr 2880 |     5     6    12 |     9     9    30 |     7     6    16 |
igs | igs 2880 |     6    11    18 |     8     8    29 |     7     7    15 |
jpl | jpl 2880 |     8     7    23 |     8     9    30 |     9     8    21 |
mit | mit 2880 |     6     7    13 |     8     8    31 |     8     7    19 |

Table 5.1710.5   GPS week: 1710   Day: 5   MJD: 56219.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3019 |     4     4    11 |     6     7    22 |     9    13    24 |
emr | emr 2880 |     7     6    18 |     9     7    23 |    12    16    27 |
esa | esa 2880 |     5     5    13 |     6     9    23 |    10    14    23 |
gfz | gfz 2880 |     5     5    12 |     6     8    23 |    10    14    22 |
grg | grg 2976 |     6     9    16 |     7    11    29 |    12    13    34 |
igr | igr 2879 |     5     5    14 |     5     8    21 |    10    14    21 |
igs | igs 2933 |     4     5    12 |     6     8    21 |    10    12    25 |
jpl | jpl 2879 |     6     5    16 |     7     7    26 |    12    15    25 |
mit | mit 2880 |     4     5    11 |     6     8    22 |    12    13    24 |

Table 5.1710.6   GPS week: 1710   Day: 6   MJD: 56220.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3013 |     4     4    10 |     5     8    25 |     7     7    17 |
emr | emr 2876 |     9     6    13 |     7     6    26 |    11    15    20 |
esa | esa 2880 |     5     5    11 |     5     8    21 |     9    11    17 |
gfz | gfz 2873 |     6     6    13 |     5     6    22 |     9    10    16 |
grg | grg 2975 |     9     7    22 |     6    10    28 |     9    14    21 |
igr | igr 2880 |     5     5    12 |     5     7    21 |     9    11    16 |
igs | igs 2959 |     5     5    11 |     5     7    22 |     8    10    17 |
jpl | jpl 2876 |     8     7    13 |     6     7    22 |    11    13    20 |
mit | mit 2880 |     6     6    10 |     5     9    23 |    11    11    19 |


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 6.1710   GPS week: 1710   MJD: 56214.500-56220.500

                                                         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 |     -75     -42     136    -252     -5 |       2     13
            |      16      24      52     106      7 |       2
emr   uuuxu |      40     -11      83     480    -11 |      21     26
            |      19      23      70      84      5 |       3
esa   uuuuu |     -27     -35     -65    -225     -7 |       9     17
            |      27      51      99      79      6 |       2
gfz   uuuuu |      39      71     -37      20      0 |       4     12
            |      19      35     111      62      3 |       2
grg   uuuux |      -7     -27      12     105    -30 |      -7     31
            |      34      45      73      42     51 |      10
igr   xxxxx |     -44      18     -26      43      2 |      -3     12
            |      11      13      74      70      4 |       3
irf   xxxxx |      22       6       2     138      4 |       5     12
            |       8      16      12      28      6 |       3
jpl   uuuuu |      22     -24     -51     237      2 |      29     32
            |      15      26      87      88      7 |       2
mit   uuuuu |      44       7      11     212     11 |       0     13
            |      10      11      83      66     10 |       5
ngs   uuuuu |     -27      73     -21      39      1 |      10     15
            |      18      33      54     125      3 |       2
sio   xxxxx |     -27       4      77    -230     -4 |      20     24
            |      19      21     162     115      6 |       2


Table 7.1710.0   GPS week: 1710   Day: 0   MJD: 56214.500

                                                         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 |     -65     -19      53    -210     -5 |       2     12
emr   uuuxu |      50     -46     221     487    -10 |      25     28
esa   uuuuu |     -45     -73     -91    -308     -9 |       9     16
gfz   uuuuu |      78      99    -158      67     -2 |       1     13
grg   uuuux |      16      -6    -100     149     29 |     -23     51
igr   xxxxx |     -24      40    -112     152      0 |      -7     15
irf   xxxxx |      33      19       0     145      7 |       0     11
jpl   uuuuu |      33      -9      51     351     -8 |      32     34
mit   uuuuu |      41       4     108     233     14 |      -7     13
ngs   uuuuu |     -26     112     -50      16      4 |       6     14
sio   xxxxx |     -32       7    -120    -151    -13 |      21     25

Table 7.1710.1   GPS week: 1710   Day: 1   MJD: 56215.500

                                                         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 |     -49     -34     118    -240    -13 |       3     11
emr   uuuxu |      45       8      47     560    -16 |      24     28
esa   uuuuu |     -59     -49      49    -260     -2 |       9     16
gfz   uuuuu |      41      94    -190      53      2 |       3     11
grg   uuuux |      24      34     -53     100     21 |     -14     44
igr   xxxxx |     -48      15     -36     -52      3 |      -5     12
irf   xxxxx |      27      16      -8     180     10 |       2     11
jpl   uuuuu |      28     -17    -135     328     -4 |      31     33
mit   uuuuu |      36     -10      46     331     18 |      -5     13
ngs   uuuuu |       7      56     -47    -164      4 |       8     14
sio   xxxxx |       3      15     -71    -109    -10 |      22     25

Table 7.1710.2   GPS week: 1710   Day: 2   MJD: 56216.500

                                                         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 |     -79     -43     220    -357     -1 |       3     10
emr   uuuxu |      54      16      56     564    -13 |      23     27
esa   uuuuu |     -46     -91     -30    -285     -3 |      11     16
gfz   uuuuu |      43      79    -103      16      2 |       5     10
grg   uuuux |       6      17      25     150     -2 |      -3     30
igr   xxxxx |     -37      28     -97      38     10 |      -2     10
irf   xxxxx |      24      23       1     136      0 |       5     11
jpl   uuuuu |      46      13    -155     207      1 |      31     33
mit   uuuuu |      44       2       1     241      3 |      -2     12
ngs   uuuuu |     -34     109     -32     148      1 |      11     14
sio   xxxxx |     -36      10     160    -138     -6 |      22     25

Table 7.1710.3   GPS week: 1710   Day: 3   MJD: 56217.500

                                                         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 |     -91      -7     119    -240     -5 |       3     10
emr   uuuxu |      50      -6      15     550    -13 |      22     26
esa   uuuuu |     -23     -81    -226    -292     -7 |      11     16
gfz   uuuuu |      31      98      13      65     -5 |       5     10
grg   uuuux |       0     -28      94     123    -10 |       5     14
igr   xxxxx |     -46      23      24      69      2 |      -1     10
irf   xxxxx |      31      16      21     151     10 |       5     11
jpl   uuuuu |      25      -9     -25     173      4 |      29     31
mit   uuuuu |      52      24      45     177     23 |      -1     12
ngs   uuuuu |     -25      42      76     206     -4 |      11     14
sio   xxxxx |     -13      38     -63    -177     -4 |      21     24

Table 7.1710.4   GPS week: 1710   Day: 4   MJD: 56218.500

                                                         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 |     -97     -58     119    -408      5 |      -1     12
emr   uuuxu |       0     -38      36     449    -14 |      16     23
esa   uuuuu |      21      37    -155    -148     -3 |       7     15
gfz   uuuuu |      28      67      75      71      0 |       1     11
grg   uuuux |     -27     -88     -13      27    -77 |       2     16
igr   xxxxx |     -46      11       8      97     -2 |      -4     10
irf   xxxxx |      12     -13      15     140     -3 |       5     11
jpl   uuuuu |       8     -59      67     294      2 |      25     27
mit   uuuuu |      42       5      62     213     -1 |       0     11
ngs   uuuuu |     -36      30      -6      77      1 |       8     13
sio   xxxxx |     -58     -28     120    -296      0 |      17     20

Table 7.1710.5   GPS week: 1710   Day: 5   MJD: 56219.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -66     -62     160    -228    -15 |       4     16
emr   uuuxu |      31     -16     120     388     -5 |      19     25
esa   uuuuu |     -16       2     -39    -165    -18 |      11     18
gfz   uuuuu |      15      56      51     -48     -1 |       6     15
grg   uuuux |       8     -64      38      90    -87 |      -2     21
igr   xxxxx |     -58       8     -64      25     -2 |       0     12
irf   xxxxx |      17      -1      -9     124      5 |       9     14
jpl   uuuuu |      14     -50    -107     192      9 |      29     32
mit   uuuuu |      33      20     -42     164     19 |       5     14
ngs   uuuuu |     -21      69     -93      52      3 |      12     18
sio   xxxxx |     -25     -15     217    -327     -2 |      21     25

Table 7.1710.6   GPS week: 1710   Day: 6   MJD: 56220.500

                                                         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 |     -77     -74     163     -79     -1 |       1     18
emr   uuuxu |      52       3      85     358     -5 |      17     24
esa   uuuuu |     -22      10      34    -117     -4 |       8     20
gfz   uuuuu |      35       1      56     -84      4 |       5     15
grg   uuuux |     -75     -56      94      92    -83 |     -12     39
igr   xxxxx |     -48       3      97     -27     -1 |       0     12
irf   xxxxx |      13     -18      -8      87     -2 |       9     14
jpl   uuuuu |       2     -40     -55     114     10 |      29     32
mit   uuuuu |      62       3    -145     126      1 |       7     14
ngs   uuuuu |     -54      96       5     -63     -4 |      12     18
sio   xxxxx |     -29       3     298    -414      7 |      19     24



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