[IGSREPORT-21255] Wk 1708 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Oct 19 06:26:18 PDT 2012


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1708   (Sep 30, 2012 - Oct 06, 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. 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, no satellite L1/L2 delay calibration should be
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. 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 3 weeks (21 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:

igs1708[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1708[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1708[0-6].cls  IGS GPS clock combination summary report.
igs17087.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17087.sum      Complete report.

    
REMARKS concerning the IGS Orbit Combination:                                  
---------------------------------------------

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and JPL.
    The other centres are excluded because of poorer consistency (GRG), they provide
    broadcast clocks (NGS), or clock corrections are not provided (SIO).  The clock
    information not used is still compared to combination for completeness. The
    value of 999999.999999 microseconds, according to the sp3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks contributed
    from that AC should not be included with weight in this combination. This is
    done to ensure a high level of consistency between the TRF and the orbital
    frame. However, there is an exception for the clocks if the AC is the reference
    center. In that case, only the clocks from that AC are included with weight.
    
    Starting 12-Aug-2012 (GPS Week 1701, day 0, MJD 56151), GRG clocks are included
    after changing their procedures to generate estimates in the center-of-figure
    frame instead of the center-of-mass frame. Starting 16-Sep-2012 (GPS Week 1706,
    day 0, MJD 56186) the CODE Analysis Center began submitting two solutions: COD
    (1d SNX with 3d orbital arcs) and COF (1d SNX with 1d orbital arcs). The COD
    clocks and orbits are included for comparison only; the COF solution is
    included with weight, and is the reference clock center.
    

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new solution from CNES/GRGS (GRG) is included with
    weight except for the clock and LOD combinations.

 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  |  COF   | NICO
                0  |  EMR   | 8 KERG MCM4 KERG MCM4
                0  |  ESA   | AREQ NNOR
                0  |  GFZ   | 8 BOGT SANT
                0  |  GRG   | WROC WSRT ADIS LHAZ URUM USNO WROC WSRT
                0  |  JPL   | 8
                0  |  MIT   | 2 22 2 22 YEBE
                1  |  COF   | 21 MATE MIZU SUTM
                1  |  EMR   | 8
                1  |  ESA   | MATE NNOR
                1  |  GFZ   | 8 21 ABPO BOGT MATE RIOP URUM ZECK
                1  |  GRG   | YEBE ARTU HOFN KOUC SOFI YEBE
                1  |  JPL   | 8 21
                1  |  MIT   | 21 21 DUBO DUBO MDVJ NRC1 ZECK
                2  |  COD   | KOUC KOUC
                2  |  COF   | KOUC KOUC SUTM WILL
                2  |  EMR   | 8
                2  |  ESA   | CAGZ HOB2 CAGZ HOB2
                2  |  GFZ   | BOGT HOB2 URUM
                2  |  GRG   | HOB2 USNO WSRT YEBE HOB2 LPGS NOVM USNO WSRT YEBE
                2  |  JPL   | 8
                2  |  MIT   | NICO NICO
                3  |  COF   | KOUC KOUC
                3  |  EMR   | 8
                3  |  ESA   | MATE
                3  |  GFZ   | 8 BOGT HARB IRKJ MATE TLSE URUM
                3  |  GRG   | 10 10 USNO WIND
                3  |  JPL   | 8
                3  |  MIT   | IRKJ NICO NRC1 IRKJ JPLM NRC1 SYDN
                4  |  COF   | 30 30 BOGT HOB2 JOZ2 BOGT HOB2 SUTM
                4  |  EMR   | 8
                4  |  ESA   | NICO SOFI REUN SOFI
                4  |  GFZ   | 30 BOGT DGAR GUUG HOB2 LHAZ RIO2 SOFI
                4  |  GRG   | 30 30 WSRT KOUC NICO WIND WSRT
                4  |  JPL   | 8 30
                4  |  MIT   | 30 30 GMAS SOFI
                5  |  COD   | KOUC RIO2
                5  |  COF   | KOUC FLRS KOUC RIO2
                5  |  EMR   | 8 MCM4 MCM4
                5  |  ESA   | MATE URUM MATE POTS
                5  |  GFZ   | BOGT DUBO GRAS IRKT LHAZ MATE
                5  |  GRG   | KOUC WROC KOUC NRMD WIND WROC
                5  |  JPL   | 8
                5  |  MIT   | DUBO DUBO GMAS KOUC
                6  |  COD   | HOB2
                6  |  COF   | KOUC KOUC MIZU SUTM
                6  |  EMR   | 8
                6  |  ESA   | THTI THTI
                6  |  GFZ   | BOGT LPGS MAG0 NKLG
                6  |  GRG   | 21 21 HOB2 LPGS THU3 USNO WSRT BUCU LHAZ LPGS SANT
                6  |  GRG   | THU3 USNO WSRT
                6  |  JPL   | 27
                6  |  MIT   | 22 23 22 23 GMAS

 5. 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.
    

 6. Small rotations were applied to all the AC orbit and ERP values in order
    to align them to the current IGS reference frame. These rotations were
    estimated in the IGS SINEX combination process, performed by the IGS Reference
    Frame Coordinator at the Institut Geographique National (IGN). Starting on
    19-Aug-2012 (GPS Week 1702; mjd=56158), ACs began contributing products based
    on 1d SINEX integrations. As a result, the SINEX combinations are now done
    daily instead of weekly, and the associated daily rotations are applied here
    to the orbits and ERPs.  The estimated 7 transformations, from which only the
    3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.3     .6    -.6     -80     20     41    -.52
       COF  |   0 |     .1     .1   -1.0     -90     24     39    -.53
       EMR  |   0 |   -2.9    8.0   10.0       2     -3      8    -.31
       ESA  |   0 |   -3.3   10.9    3.2      99    -31     46    -.64
       GFZ  |   0 |    -.3    1.8     .4     -63    -22    -20    -.41
       GRG  |   0 |   -7.8    6.4   23.5     -42      1     38    -.27
       JPL  |   0 |    9.6    7.6   11.7     -80      9    -30     .09
       MIT  |   0 |    3.9    7.9   11.8     -16      6    -39    -.50
       NGS  |   0 |   -1.6     .6   18.9     -80     -5    -12     .14

       COD  |   1 |     .1    1.0    -.4     -78     10      0    -.41
       COF  |   1 |     .2    1.1     .1     -73     14      5    -.43
       EMR  |   1 |    9.5   13.0   11.6       0      7    -16     .06
       ESA  |   1 |    1.4    9.8    5.8     134    -83     86    -.31
       GFZ  |   1 |    -.6     .9    -.3     -65    -26    -14    -.25
       GRG  |   1 |   -3.7   10.9   22.0     -21     20    -28    -.41
       JPL  |   1 |   -1.5   14.4   13.7     -34    -35     37    -.03
       MIT  |   1 |    5.1    8.5   10.0      -5      1    -27    -.25
       NGS  |   1 |   -1.7    9.4    9.6      12     -5      2     .12

       COD  |   2 |    -.3     .4    -.6     -73     -3     31    -.36
       COF  |   2 |    -.2     .5   -1.0     -74      6     29    -.42
       EMR  |   2 |   12.0    5.4   10.1       8      5     -2     .12
       ESA  |   2 |    4.5    6.8    3.6     100   -162    102    -.18
       GFZ  |   2 |    -.4     .7    -.5     -61    -37    -14    -.31
       GRG  |   2 |    -.2    3.1   11.6     -25     46    -45    -.03
       JPL  |   2 |    -.5   11.9    8.4     -72    -17    -28    -.19
       MIT  |   2 |    7.7    9.2    6.9     -14      4    -39    -.02
       NGS  |   2 |    2.4    1.7   13.1     -67    -28     15     .09

       COD  |   3 |    -.1     .5    -.5     -61     -9     25    -.36
       COF  |   3 |     .1     .3     .4     -53     -9     13    -.37
       EMR  |   3 |    8.0    1.0    9.8       4     11    -14     .16
       ESA  |   3 |    4.1    3.5    5.0      79   -114     99     .03
       GFZ  |   3 |    -.1    1.0     .5     -37    -32    -29    -.26
       GRG  |   3 |    2.6    4.2   11.4     -50     50    -43    -.10
       JPL  |   3 |   -1.3    9.3    6.5     -22     -1    -10    -.39
       MIT  |   3 |    9.5    6.9    6.2     -11     -1    -45    -.02
       NGS  |   3 |    6.6    4.1    7.0     -30    -52     49     .26

       COD  |   4 |    -.3     .7     .7     -58     -4      8    -.46
       COF  |   4 |    -.1     .8     .4     -42      1     17    -.44
       EMR  |   4 |    7.6     .9   18.0       2     10    -15     .07
       ESA  |   4 |    4.4    2.7    6.1      70   -126    129    -.09
       GFZ  |   4 |     .2    1.3    -.2     -27    -27    -16    -.19
       GRG  |   4 |     .3   10.2   12.3     -46     24      6    -.12
       JPL  |   4 |   -4.9   10.8   14.6      -6    -59      9    -.17
       MIT  |   4 |    7.2    2.6   12.5     -17     -2    -30    -.21
       NGS  |   4 |    3.0   -3.5   17.2    -105    -34     18     .11

       COD  |   5 |    -.2    1.8     .4     -77    -14     -8    -.37
       COF  |   5 |     .8    1.0     .7     -41      8    -27    -.49
       EMR  |   5 |    2.2    2.9   17.2       2     11    -14    -.29
       ESA  |   5 |    -.2    7.0    4.0     147    -73     85    -.33
       GFZ  |   5 |    -.2     .4   -1.1     -18    -40      3    -.09
       GRG  |   5 |   -4.4    6.3   30.6     -38     48     -7    -.25
       JPL  |   5 |   -7.5    6.6   13.9     -21     -4    -53     .16
       MIT  |   5 |    5.4    5.9    9.0      10     -9    -36    -.15
       NGS  |   5 |   -4.1    3.9    2.7      31      3    -23     .21

       COD  |   6 |    -.4    1.7    -.3     -64    -18     11    -.37
       COF  |   6 |    -.6     .9    -.3     -64    -20     15    -.35
       EMR  |   6 |    3.0    4.3   16.1       6     16    -16     .01
       ESA  |   6 |    1.4   10.2   -2.5     131   -171    100     .16
       GFZ  |   6 |    -.5    1.4     .1     -45    -49    -24    -.13
       GRG  |   6 |   -8.6    4.5   21.6     -25     26    -20    -.20
       JPL  |   6 |    2.3   13.4   22.9     -31      8    -47    -.06
       MIT  |   6 |    8.7   10.0   14.0     -11     -4    -39     .01
       NGS  |   6 |    4.9   -1.9   22.7    -123    -53     33     .27


 7. 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 navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

 8. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and ERPs
    as generated by IGN). For more information see IGSMAIL #2750. Because of this
    change in alignment, Table 2 has been enhanced with one additional line per AC.
    This additional line shows daily X- and Y-rotations, i.e. RX_sp3(ac) and
    RY_sp3(ac), used to align each daily AC orbit to the combined SINEX prior to
    the orbit combination. These a-priori rotations are derived from three sources:
    the daily AC polar motion estimates, XPO(ac) and YPO(ac), provided in their ERP
    files; the combined polar motion values, XPO(cmb) and YPO(cmb), from the SINEX
    combination; along with the AC TRF rotations, RX_snx(ac) and RY(ac), also from
    the SINEX combination: 
    
                      RX_sp3(ac) = YPO(ac) - YPO(cmb) + RX_snx(ac)
                      RY_sp3(ac) = XPO(ac) - XPO(cmb) + RY_snx(ac)
    
    Thus, the total rotation of the individual AC orbits w.r.t. the IGS combined
    orbit is the sum of the values in the two lines of Table 2.
    
    Starting on 19-Aug-2012 (GPS Week 1702; mjd=56158), the AC TRF rotations are
    daily values, instead of weekly ones, based on the combination of daily AC
    SINEX files.

 9. 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; since GPS Week 1632 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 five 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 1.1708.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1708.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 2.1708.[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 3.1708.[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 and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1708.0-6).

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 1708 summary.                       (Sep 30, 2012 - Oct 06, 2012)

Table 1.1708.a   GPS week: 1708   MJD: 56200.000-56206.000

         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   127   -12     8  -.47   12   11 |    -788     -64     28     79
        |    0     0     1    36    26    27   .01           |     172     353
cof  255|    0     0    -1    83  -110    20  -.44   12   12 |    -740     -74     16     80
        |    0     0     1    24    26    10   .03           |     173     357
emr   79|    2     0     4   -24     9   -11   .28   18   18 |    1092    -482     14    104
        |    1     1     1    37    40    21   .02           |     359     814
esa  177|    0     0     0  -158    83   -11   .06    9    9 |   -1081     749     14    152
        |    0     0     1    59    92    12   .03           |     766     867
gfz  191|   -1     0    -3    91    -6    21  -.43   14   14 |     296    -324     23    146
        |    0     1     1    78    72    16   .03           |     477     797
grg  120|    1     1     4    46   -61    -4   .40   16   16 |     275    -428     19    164
        |    1     0     2    38    37    24   .04           |     195     466
igr  n/a|    0     0    -1   -11   -40   -17  -.17    5    5 |     759    -283     18     84
        |    0     0     0    34    29    15   .04           |     534     620
jpl   80|    0    -2    -1    55    15     0   .41   16   16 |    1882    -427     17    113
        |    2     1     1    45    66    23   .02           |     468     625
mit  240|    0     0    -3   -10   -15   -19  -.19    7    7 |     131    -384     21    202
        |    0     0     0    41    41    25   .03           |     157     407
ngs  243|    0     0     3    75    43    20   .32   12   10 |    -814     -23   2205   3706
        |    0     1     3   109    52    33   .04           |     188     352
sio  270|   -1     0    -9   -29   -16   -21  -.36   19   18 |     ---     ---    ---    ---
        |    1     1     0    49    34    14   .03           |     ---     ---


Table 1.1708.b   GPS week : 1708   MJD: 56200.000-56206.000   

         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  |    5    5    5    5    5    5    5 |
   2  |    4    5    4    5    4    4    4 |
   3  |    4    5    4    4    4    4    4 |
   4  |    4    4    4    4    5    4    4 |
   5  |    5    5    4    4    5    4    5 |
   6  |    4    5    4    4    4    4    4 |
   7  |    5    6    5    5    6    5    5 |
   8  |    6    6    6    6    6    6    7 |
   9  |    5    6    5    5    4    4    4 |
  10  |    4    4    4    4    4    3    4 |
  11  |    4    5    4    5    5    4    5 |
  12  |    5    5    5    5    5    5    5 |
  13  |    4    5    5    5    5    4    5 |
  14  |    5    5    4    5    5    4    5 |
  15  |    5    5    4    5    5    5    5 |
  16  |    4    5    5    5    5    5    5 |
  17  |    5    5    4    5    5    4    5 |
  18  |    5    5    5    5    5    4    5 |
  19  |    4    5    4    4    5    4    4 |
  20  |    5    5    5    5    5    5    5 |
  21  |    5    5    4    4    4    4    4 |
  22  |    5    5    5    4    5    4    5 |
  23  |    4    5    4    5    5    4    5 |
  25  |    5    6    5    6    5    5    5 |
  26  |    4    5    4    4    4    4    4 |
  27  |    4    5    4    4    4    4    5 |
  28  |    4    5    5    5    5    4    5 |
  29  |    5    5    5    5    5    4    5 |
  30  |    4    5    4    4    4    4    4 |
  31  |    5    6    5    5    6    5    5 |
  32  |    4    5    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 2.1708.0   GPS week: 1708   Day: 0   MJD: 56200.000                            

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    -1    98   -44   -25  -.47   12   12 |    -497    -132     28     77
        |                     49    36                       |
cof  255|   -1     0    -3    94  -104    16  -.40   10   10 |    -448    -144     16     80
        |                     28    78                       |
emr   76|    1     0     4   -46    77    16   .32   20   19 |     637     282     13     92
        |                     11   -49                       |
esa  177|    0     0     0  -181   -68   -15   .07    8    8 |    -837    1721     14    147
        |                     24   142                       |
gfz  190|   -1     1    -4   101   123    38  -.40   10   10 |     -94     922     20    135
        |                    -65    14                       |
grg  120|    2     0     7    26    -4    42   .43   16   15 |     275    -251     21    181
        |                      4    -1                       |
igr  n/a|    1    -1     0   -65    -8    -2  -.16    5    4 |     346     -66     18     73
        |                      5    55                       |
jpl   80|   -2    -2    -3    81    -4    22   .43   16   16 |    1471      -1     19    120
        |                     22    11                       |
mit  240|    0     0    -2   -26    49   -64  -.18    8    8 |     -20     -32     22    202
        |                      8    -6                       |
ngs  246|    0     0     8    91   -25    20   .37   12   11 |    -456    -183   2000   3663
        |                    -34   105                       |
sio  273|   -3    -1    -8   -35    31   -14  -.36   21   20 |     ---     ---    ---    ---
        |                     10    25                       |

Table 2.1708.1   GPS week: 1708   Day: 1   MJD: 56201.000                            

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   156   -14    16  -.50   11   11 |    -696      58     26     78
        |                     34     8                       |
cof  257|    0     0    -2   118  -109     9  -.46   12   12 |    -649      54     14     79
        |                     78   141                       |
emr   80|    3     1     4     0    39   -15   .29   19   18 |     555     376     15     96
        |                     12   -37                       |
esa  177|    0     0     0  -177    49   -17   .02    8    9 |   -2076    1871     15    157
        |                    106   126                       |
gfz  192|   -1    -2    -1   198    -2    -2  -.46   18   18 |     179     -85     25    150
        |                    -61    17                       |
grg  121|    1     2     5    42   -30    -2   .41   16   15 |     109    -247     19    151
        |                     54   -15                       |
igr  n/a|    0     0    -1    23   -23     0  -.22    6    6 |     -43      12     20     86
        |                    -15    79                       |
jpl   80|    0    -2    -1    80    93    35   .38   17   17 |    1171      68     18     95
        |                    -17    13                       |
mit  240|    0     0    -3    21   -24   -39  -.25   10    9 |     138    -452     23    207
        |                    -16     4                       |
ngs  246|   -1     2     2   -46     9    53   .33   12   10 |    -803     257   2038   3135
        |                     -8    93                       |
sio  272|    0     0    -8   -17   -33   -42  -.36   19   18 |     ---     ---    ---    ---
        |                      0    42                       |

Table 2.1708.2   GPS week: 1708   Day: 2   MJD: 56202.000                            

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     1    -1   120   -37    -3  -.48   14   13 |    -972     152     27     79
        |                     31   -19                       |
cof  259|   -1     0     0    78  -163    28  -.47   14   13 |    -923     142     16     82
        |                     60    96                       |
emr   80|    4     0     3   -40   -10    20   .28   18   18 |    1464   -1927     14     93
        |                     -4   -67                       |
esa  177|    0     0     0  -154   178     2   .03    9    9 |   -1033     636     16    148
        |                     43    17                       |
gfz  195|   -2     1    -2   168    20    22  -.44   14   13 |     363    -800     24    150
        |                    -88    -2                       |
grg  124|    0     1     5    11   -94   -29   .43   15   14 |     484   -1326     18    157
        |                     31   -26                       |
igr  n/a|    0     0     0   -24   -75   -32  -.17    6    6 |     434   -1476     17     85
        |                    -23    73                       |
jpl   80|    0    -3    -1   119     5   -16   .40   18   17 |    1652   -1478     16    110
        |                    -45   -28                       |
mit  240|    0     0    -2   -29   -28     7  -.18    5    5 |     296   -1113     25    177
        |                     -7   -25                       |
ngs  246|    0     0     2    78     2   -41   .36   12   10 |    -879     -17   2327   3257
        |                    -38    57                       |
sio  274|    0     1    -9   -66   -25    -7  -.39   17   18 |     ---     ---    ---    ---
        |                      5     5                       |

Table 2.1708.3   GPS week: 1708   Day: 3   MJD: 56203.000                            

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   109   -14    48  -.47   13   12 |    -691    -737     30     86
        |                     48     3                       |
cof  258|   -1     1    -1    73  -115    34  -.48   14   13 |    -636    -760     16     89
        |                     57    98                       |
emr   78|    1    -1     3   -40     1   -18   .26   18   18 |    1073     108     14    105
        |                     22   -55                       |
esa  177|    0     0     2   -94    59     3   .05    9   10 |    -170    -730     12    173
        |                     -8    65                       |
gfz  191|   -2     0    -1   101   -48    26  -.45   17   17 |    1057   -1389     24    150
        |                    -32    23                       |
grg  121|    0     0     5    68  -100   -28   .43   14   14 |     534    -754     20    188
        |                     12     4                       |
igr  n/a|    0     0    -2   -16   -57    -4  -.21    6    6 |     792     534     19     97
        |                    -15    85                       |
jpl   80|    0    -1     0    12   -28    17   .44   16   16 |    2194     365     17    125
        |                     34    28                       |
mit  240|    0     0    -4    -5     5   -11  -.22    6    6 |     343    -643     15    202
        |                     20   -14                       |
ngs  245|    0     1     0    18    94     7   .34   11   10 |    -758    -648   2186   4043
        |                    -54     9                       |
sio  273|   -1     0   -10   -38   -23   -41  -.38   17   18 |     ---     ---    ---    ---
        |                     18    39                       |

Table 2.1708.4   GPS week: 1708   Day: 4   MJD: 56204.000                            

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     1    -1   113    12   -10  -.48   12   10 |    -869    -272     31     76
        |                     35   -28                       |
cof  253|    0     2     0    37   -83     6  -.44   12   12 |    -826    -275     19     78
        |                     98    93                       |
emr   80|    0    -1     6    -8     7   -24   .27   18   17 |    1265    -753     15    100
        |                    -14   -40                       |
esa  177|    0     0     1   -64   131    -4   .11   11   11 |   -1974     451     16    150
        |                      9    44                       |
gfz  191|    0     0    -2   -39  -114    16  -.43   15   14 |       8    -478     25    151
        |                    -39   -14                       |
grg  120|    0     1     0    41   -36   -11   .37   17   16 |     137     -54     20    154
        |                    -20   -43                       |
igr  n/a|    0     0    -2    11   -23   -37  -.15    6    5 |    1284    -548     20     76
        |                     -8    92                       |
jpl   80|    3    -2    -2    -7   111   -12   .40   16   16 |    2522    -817     15    109
        |                     11    15                       |
mit  240|    0     0    -3   -84   -71   -25  -.17    7    6 |     -41     109     23    180
        |                     14    21                       |
ngs  243|   -1     0     1   235   115    50   .31   12   10 |    -905    -190   2357   3699
        |                   -116  -110                       |
sio  262|   -1     3   -10   -60   -38   -17  -.39   18   16 |     ---     ---    ---    ---
        |                      1    44                       |

Table 2.1708.5   GPS week: 1708   Day: 5   MJD: 56205.000                            

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|   -1     1     2   196    31    39  -.46   12   11 |    -973     203     28     75
        |                     29   -16                       |
cof  252|    0     1    -2    95   -87    19  -.40   11   11 |    -926     196     16     79
        |                     63    65                       |
emr   80|    1    -2     6    38     1   -23   .28   17   17 |    1341    -616     15    100
        |                      0   -12                       |
esa  177|    0     0     1  -205    40   -32   .08    8    7 |   -1292     660     12    132
        |                     80    96                       |
gfz  189|    0     0    -4    59   -33    44  -.40   12   12 |    -236     414     22    140
        |                    -27   -19                       |
grg  119|    0     0     7   122   -90     6   .34   19   18 |      22       0     19    170
        |                    -19   -22                       |
igr  n/a|    0     0    -1    30   -15   -15  -.11    4    4 |    1119    -271     18     80
        |                     -2    61                       |
jpl   80|    2     0     2    80     7   -18   .43   16   15 |    2119    -561     17    117
        |                     18    12                       |
mit  240|    0     0    -2    42    13   -11  -.14    6    6 |      -5    -319     18    232
        |                     -3   -17                       |
ngs  239|    0     0     1   -41    27    45   .27   11    9 |   -1077     339   2362   4053
        |                     43   -46                       |
sio  270|   -1     2    -9    75    32    -9  -.35   18   17 |     ---     ---    ---    ---
        |                     -7     7                       |

Table 2.1708.6   GPS week: 1708   Day: 6   MJD: 56206.000                            

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|    0     1    -1    98   -20    -6  -.47   10   10 |    -822     275     29     83
        |                     14   -33                       |
cof  255|   -1     0     1    88  -105    26  -.45   13   13 |    -776     263     19     79
        |                     11    59                       |
emr   80|    0     0     3   -74   -50   -35   .29   17   17 |    1311    -845     15    147
        |                     40   -25                       |
esa  177|    0     0     0  -228   197   -15   .09   10   10 |    -187     634     16    160
        |                     94     0                       |
gfz  189|   -1     0    -5    51     7     5  -.42   13   13 |     799    -853     22    149
        |                    -52   -45                       |
grg  119|    4     2     1    13   -72    -7   .36   18   16 |     366    -369     18    150
        |                     16   -47                       |
igr  n/a|    0     0    -2   -37   -77   -29  -.14    4    4 |    1384    -168     20     94
        |                      4    64                       |
jpl   80|   -1    -3    -1    24   -77   -22   .42   15   15 |    2045    -565     18    118
        |                      9    31                       |
mit  240|    0     0    -2     5   -53     6  -.18    6    6 |     208    -241     23    215
        |                    -21     5                       |
ngs  240|    0     0    10   195    77     4   .28   12   11 |    -820     277   2170   4094
        |                     12   -39                       |
sio  269|   -2     1    -9   -61   -57   -15  -.32   20   18 |     ---     ---    ---    ---
        |                      8    38                       |

       
       
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 3.1708.0   GPS week: 1708   Day: 0   MJD: 56200.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |    8   14   24   11   10   18    5   17    8   13   15    5 |    30   33   34   35   33   38   32   40   34   40   27    34
   2  |   11    8   18    6    9   15    4   14    9   12   21    4 |    21   25   36   33   24   33   28   31   29   36   30    29
   3  |    9    8   15    5    8   12    4   11    6   11   16    3 |    17   20   27   25   23   27   23   28   22   26   23    22
   4  |    9   11   16    9   12   18    5   12    8   11   27    4 |    17   19   23   24   23   22   20   24   19   23   19    20
   5  |   12    7   17    5   10   20    3   15    9   15   17    4 |    37   41   50   45   43   57   43   49   41   46   39    45
   6  |    8    8   12    5    8   10    4   11    7   13   16    3 |    23   25   30   31   28   30   27   33   26   29   30    27
   7E |    9   10   19   10    7   14    4   20    9   13   19    4 |    30   32   39   33   33   35   34   41   32   40   32    34
   8E |   17   12   22   10   10   16    6   20   18   17   25    5 |    25   28   35   30   29   29   29   33   34   34   33    29
   9E |   16    9   18    8   15   14    8   19   10   10   20    4 |    37   41   47   42   36   45   40   50   39   44   40    41
  10  |    7    9   15    5    9   16    4   10    8   10   26    3 |    25   25   29   28   27   35   25   29   21   26   24    26
  11  |   11   12   15    9    9   22    5   13    7    9   12    4 |    16   19   28   25   20   34   20   30   20   25   23    22
  12  |   15   11   21    8   12   17    5   17    7   11   22    4 |    21   27   30   32   29   32   29   29   29   35   26    28
  13  |    9    8   15   10   11   19    4   15    9    9   22    4 |    28   30   36   31   33   42   32   34   28   32   26    31
  14  |   14   10   17    7   13   14    4   18    6   16   22    4 |    27   30   35   33   38   38   30   34   28   32   29    33
  15  |   15   11   17    6   12   12    5   19    8   13   17    4 |    27   34   39   34   34   41   31   35   30   33   28    33
  16  |   12    9   20    6   10   15    4   17    7   12   22    4 |    19   23   29   24   23   29   23   30   20   26   23    22
  17  |   13   11   19    9    8   17    5   18    9   14   36    4 |    27   33   38   34   33   34   33   38   28   37   30    31
  18  |   12    8   18    8   14   18    3   19    7   12   17    4 |    27   31   39   30   26   36   30   38   30   32   34    30
  19  |   10   11   23    8    9   12    5   18    7    9   20    4 |    24   26   37   30   26   30   28   36   25   31   26    27
  20  |   12   10   21    6    6   16    3   19    9   16   17    4 |    23   24   32   26   21   33   26   35   23   33   30    25
  21  |   10    8   39    7   10   14    5   11    4   14   11    5 |    18   18   38   23   22   33   20   19   18   19   20    20
  22  |   11    9   21   11   12   19    5   18    7   12   15    4 |    21   24   34   24   22   35   23   34   24   28   28    24
  23  |   11   10   21    8   11   14    5   17    7    9   23    4 |    21   23   31   29   29   32   28   31   25   28   25    26
  25  |   12   15   31   10   10   16    4   14    7   12   17    5 |    18   24   33   29   22   31   22   30   23   26   20    23
  26  |   10   11   11    7   11   17    4   11    6    9   16    3 |    21   20   30   27   25   33   23   28   22   26   22    25
  27  |   15   10   16    7   11   15    8   16   10    8   26    4 |    15   18   30   20   17   25   21   27   21   20   28    19
  28  |   13    7   21    8   10   17    4   17    6    9   16    4 |    30   33   39   40   43   42   35   38   33   34   32    36
  29  |   15   16   19    6   10   12    5   19    8   19   31    5 |    24   27   33   25   24   28   25   31   26   30   28    25
  30  |   11    9   16    5    7   15    2   12    6   14   21    3 |    33   35   41   37   35   35   36   38   38   36   44    36
  31E |   17    7   24   11   12   16    4   22    7   13   12    5 |    33   34   37   34   30   40   33   40   29   42   31    34
  32  |   12    9   21    7    6   12    3   14    9   10   20    4 |    20   23   29   26   20   30   25   34   23   33   30    25
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   12   10   20    8   10   16    5   16    8   12   21      |T   24   27   34   30   28   34   28   33   27   31   28    28
 WRMS |   12   10   19    8   10   15    4   16    8   11   20      |NE  23   26   33   29   27   33   27   32   26   30   27    27
 MEDI |   12   10   19    8   10   16    4   17    7   12   20      |MD  24   26   34   30   27   33   28   34   26   32   28    27

Table 3.1708.1   GPS week: 1708   Day: 1   MJD: 56201.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |   10   14   25    8   17   15    5   16    7   11   13    5 |    22   19   28   25   22   29   21   30   24   26   21    23
   2  |    7   12   18    7   16   18    6   14   10   10   23    4 |    20   21   25   19   23   20   17   21   20   19   26    17
   3  |    7   14   15    8   15   12    7   11    8   17   14    4 |    15   17   22   23   19   21   20   23   22   27   19    18
   4  |   10   12   15    8   14   13    6   12    9    8   20    4 |    18   21   18   18   26   17   17   16   19   20   14    16
   5  |   12    7   17    7   18   18    6   17   11   10   16    4 |    30   29   40   30   29   44   31   40   29   41   24    32
   6  |    9   12   13    9   16   10    5   11    9   16   15    4 |    22   23   23   29   22   23   23   24   26   25   24    21
   7E |   13   12   20   11   15   22    4   23   10   17   16    5 |    30   32   38   29   26   30   30   37   33   40   32    30
   8E |   17   17   26    9   17   18    6   19   14   18   22    6 |    20   24   34   20   25   28   21   26   28   33   29    23
   9E |   15   11   16    8   24   21    8   17   10   13   22    5 |    28   32   36   33   32   42   32   38   36   35   28    33
  10  |    7   10   17    5   16   15    4   13    8    9   18    4 |    16   20   24   16   20   20   14   20   18   16   19    15
  11  |    9   10   17    8   17   19    5   15    6   10   12    4 |    15   19   29   22   19   31   20   28   22   25   26    21
  12  |   13   12   23    7   20   14    7   19    9   12   22    5 |    21   30   32   30   34   28   28   31   29   38   24    31
  13  |    8    9   15    9   19   16    5   14    9   12   18    4 |    17   18   28   19   23   29   20   27   21   23   21    20
  14  |   13   16   19    7   22   15    5   18   11    8   21    5 |    18   21   27   22   29   24   23   29   26   27   16    23
  15  |   12   12   18    8   20   14    7   20    9   13   21    5 |    23   22   31   22   23   31   22   31   22   28   17    22
  16  |   10   13   22    7   18   17    5   17   12   15   21    5 |    15   20   26   21   24   27   19   23   22   20   19    18
  17  |   12   11   21    8   17   13    5   16    6   10   26    4 |    21   19   29   17   22   22   19   23   21   27   23    20
  18  |    9    9   18    8   24   19    5   19    7   13   16    5 |    24   25   27   22   21   20   22   33   21   28   19    19
  19  |    8   14   17    9   16   11    6   22    9   14   21    5 |    14   17   27   21   16   23   17   30   21   23   18    19
  20  |   10   12   20   10   18   14    6   20   12   10   18    5 |    20   24   31   21   21   30   21   32   23   27   27    24
  21  |   11   12   15   10   15   22    6   11    8   14   19    5 |    23   26   18   21   25   22   19   20   25   23   21    19
  22  |    9   12   18    9   20   17    7   18    9    8   13    5 |    19   18   24   17   17   24   16   26   17   20   16    15
  23  |   11   10   19    9   21   11    8   16    9   12   22    4 |    17   20   29   22   28   25   22   31   23   21   25    22
  25  |   11   16   27   10   18   16    7   15    9   14   14    5 |    19   18   27   20   21   28   23   31   24   30   21    22
  26  |   10   10   14    9   17   18    5   13    9    7   15    4 |    15   18   21   18   21   24   17   22   19   20   19    19
  27  |   14   12   14    8   21   19    8   19   11   11   19    5 |    14   17   28   23   21   24   21   31   23   23   27    22
  28  |   11    9   21    8   19   14    5   18    9   10   14    4 |    23   22   33   25   29   34   25   28   31   28   31    29
  29  |   17   12   16    7   15   14    7   18   10   11   29    4 |    20   22   26   16   23   22   19   28   24   23   23    19
  30  |   10   13   16    9   14   15    7   11   10   16   19    4 |    38   40   44   45   44   43   42   43   43   45   48    42
  31E |   14   12   20   12   18   15    6   23   10   10   15    5 |    35   34   38   36   37   40   36   41   36   38   33    34
  32  |   11   13   18    7   16   12    5   14   11    7   19    4 |    18   21   27   21   21   24   20   31   23   24   28    23
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   11   12   19    8   18   16    6   17   10   12   19      |T   20   22   28   23   24   27   22   28   24   27   23    22
 WRMS |   11   12   18    9   18   15    6   17    9   10   18      |NE  19   21   27   22   23   26   21   27   23   25   22    21
 MEDI |   11   12   18    8   17   15    6   17    9   11   19      |MD  20   21   28   22   23   25   21   29   23   26   23    22

Table 3.1708.2   GPS week: 1708   Day: 2   MJD: 56202.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |   11   13   24   11   12   14    7   17    5   15   12    4 |    27   31   30   28   28   32   25   34   30   23   24    26
   2  |   10   11   16    7   13   15    5   16    4    8   18    3 |    15   19   23   17   20   23   17   21   19   22   26    17
   3  |   12   15   15    6   10    9    5   12    3    8   12    3 |    17   18   24   18   19   24   17   24   18   21   18    17
   4  |    9   13   17    9   10   14    4   13    7    9   20    4 |    19   20   22   18   23   18   18   19   20   14   17    15
   5  |   14    8   18    7   12   16    6   18    5   10   15    4 |    21   25   33   23   24   38   23   33   22   33   20    25
   6  |   11   13   13    5   12   10    5   14    3   10   14    3 |    22   22   26   22   24   25   20   27   21   18   24    19
   7E |   12   15   21    9   13   15    5   24    5   14   13    5 |    31   32   41   36   33   38   33   39   34   34   36    33
   8E |   17   16   24   14   17   14    8   22   10   23   24    6 |    22   25   29   23   30   26   19   28   21   30   25    20
   9  |   22   13   15    7   17   19    8   18    6   12   20    4 |    39   49   51   46   41   51   45   51   46   50   44    46
  10  |    9   10   16    8   12   15    4   12    5    9   21    3 |    20   22   22   19   25   20   19   21   18   21   21    17
  11  |   13   15   14    8   13   17    7   14    6   11    8    4 |    19   24   29   25   24   34   22   27   26   23   24    23
  12  |   15   15   20    9   17   13    5   22    6   10   20    4 |    22   24   27   23   27   28   22   27   23   26   23    22
  13  |    9   12   17   10   14   18    5   16    4   11   17    4 |    27   30   31   28   32   35   27   33   27   24   23    26
  14  |   16   15   15    7   18   13    5   18    5   10   17    4 |    23   27   32   25   34   33   25   29   25   25   22    25
  15  |   16   11   18    7   14    9    5   21    4    8   17    4 |    25   33   36   29   30   37   26   30   29   34   25    29
  16  |   13   15   24    8   14   12    6   20    5   11   19    4 |    19   23   29   21   22   27   20   26   20   18   19    18
  17  |   15   10   21   11   11   13    6   18    4    9   25    4 |    24   25   27   24   23   25   24   27   22   20   22    21
  18  |   16   14   18   11   18   19    6   22    4   13   14    5 |    27   27   34   24   27   26   22   31   24   23   26    23
  19  |   13   16   20    8   10    9    6   19    4   11   21    4 |    21   21   32   21   21   26   21   31   20   25   20    20
  20  |   10   15   16   10   13   17    7   19    7   10   15    4 |    27   29   34   28   27   33   29   36   32   31   31    29
  21  |   13   10   11    9   14   18    7   13    4   12    8    4 |    19   21   26   20   28   25   18   19   20   23   21    19
  22  |   13   12   17   10   17   17    7   18    5   12   10    4 |    21   21   27   16   18   25   16   26   21   19   22    17
  23  |   11   14   20    9   12   12    8   18    4   11   23    4 |    25   27   33   26   28   31   26   33   28   26   26    26
  25  |   14   20   25    9   16   15    5   14    7   12   15    5 |    20   24   27   21   19   28   22   28   21   24   19    19
  26  |   14   14   15    9   12   16    6   15    4   10   12    4 |    22   24   29   25   29   30   22   25   25   23   21    24
  27  |   15   12   13    7   17   18    7   14    4    9   16    4 |    18   19   28   18   20   26   16   24   19   18   24    17
  28  |   15   10   21   11   15   16    4   21    4   10   16    4 |    26   26   28   29   32   32   27   28   26   28   28    26
  29  |   16   14   18    7   14   11    6   21    7   14   25    4 |    19   21   30   20   23   23   18   28   17   29   20    18
  30  |   12   13   14    8   12   11    7   12    3   14   20    3 |    25   25   29   26   18   29   24   29   21   27   19    22
  31E |   14   11   17   11   15   17    5   25    5   16   11    5 |    28   30   35   24   26   33   25   34   27   35   31    26
  32  |   14   14   19   10   12   13    6   12    7   10   17    4 |    26   30   31   28   26   29   27   34   29   29   30    27
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   14   14   18    9   14   15    6   18    5   12   17      |T   23   25   30   24   25   29   23   29   24   25   24    22
 WRMS |   13   13   18    9   13   14    6   17    5   10   18      |NE  22   24   28   23   24   28   21   27   23   23   22    21
 MEDI |   13   13   17    9   13   15    6   18    5   11   17      |MD  22   25   29   24   26   28   22   28   22   24   23    22

Table 3.1708.3   GPS week: 1708   Day: 3   MJD: 56203.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |   13   10   24   13   15   13    7   16    6   12   12    4 |    28   25   30   28   27   36   25   34   28   29   24    27
   2  |    8   12   17    8   18   14    3   17    6   10   21    4 |    14   15   22   16   14   20   12   21   13   17   23    13
   3  |   10   14   14    7   15   12    5   10    5   13   15    4 |    17   19   23   19   22   24   18   22   19   19   17    18
   4  |    7   12   14   10   14   14    4   14    8   11   20    4 |    17   20   21   18   21   16   15   18   17   22   15    15
   5  |   15   11   18    8   16   16    7   19    6    8   20    4 |    23   26   37   29   28   40   28   36   28   38   30    31
   6  |   11   13   11    8   16   11    4   10    4   13   11    3 |    22   24   26   24   27   26   23   25   24   24   23    22
   7E |   26   17   21    9   17   15    5   21    8   10   18    5 |    60   65   65   61   60   60   62   65   61   63   63    61
   8E |   17   19   22   11   15   14    7   20   11   20   19    6 |    20   23   31   23   25   22   22   28   24   30   28    22
   9  |   15   11   18   13   23   17    8   16    6    9   17    5 |    27   29   34   31   30   37   27   36   26   33   26    29
  10  |    9   12   16    7   17   13    4   17    6    9   20    4 |    13   15   20   15   24   17   11   18   14   17   17    14
  11  |   12   13   16   10   16   19    6   12    5   12   10    4 |    15   17   23   19   19   30   15   22   17   18   19    17
  12  |   10   12   25   11   19   16    5   22    6    7   19    5 |    20   24   34   26   29   29   27   30   24   28   26    24
  13  |    9   13   17   10   18   16    5   13    6    9   19    4 |    23   23   28   26   30   34   21   28   20   23   19    22
  14  |   12   14   17    8   20   12    5   17    6   11   16    4 |    15   18   27   21   32   28   19   25   18   22   17    20
  15  |   12   12   20   11   18   11    7   19    7   12   17    4 |    24   28   32   31   28   34   24   31   22   30   22    26
  16  |   11   15   19    6   18   12    4   17    5   10   19    4 |    18   21   27   19   23   25   17   26   17   20   19    17
  17  |   16   12   22   11   20   11    6   18    6   10   23    4 |    18   21   29   19   26   20   19   25   19   29   20    20
  18  |    9   12   18   11   19   17    6   18    5    9   14    4 |    23   24   28   18   17   24   20   30   22   26   25    19
  19  |   11   13   19   10   15    8    6   17    4   13   21    4 |    19   21   29   20   20   24   18   28   20   20   18    20
  20  |   12   18   19    9   15   14    6   16    7   10   17    4 |    17   24   30   23   19   30   19   27   19   24   27    21
  21  |    9    9   13    7   16   19    6   13    4    9   11    4 |    15   16   17   16   21   22   12   15   13   13   16    12
  22  |   12   11   17    9   19   15    6   15    7    8   11    4 |    17   18   23   14   14   24   13   21   15   17   19    13
  23  |   11   16   19    9   17   14    6   16    5   12   24    4 |    20   21   30   28   28   27   20   29   19   25   21    22
  25  |   12   22   26   11   17   15    5   13    8   11   13    5 |    21   27   27   23   24   29   22   27   18   28   18    20
  26  |    8   12   13    9   17   14    4   11    5   10   10    4 |    17   17   23   24   20   25   18   20   17   26   17    19
  27  |   16   10   15   12   19   13    8   13    4    8   15    4 |    14   18   26   16   17   25   16   22   15   22   21    16
  28  |   14   12   23   11   20   17    6   19    6   12   17    5 |    16   19   25   21   27   28   19   22   19   24   24    19
  29  |   15   18   17    6   17   13    5   19    7    8   27    4 |    24   28   29   21   24   23   21   27   22   25   18    21
  30  |   11   13   12    6   16   13    6    9    5   10   16    3 |    39   39   42   44   40   42   40   43   40   44   39    41
  31E |   14   12   19    8   18   13    4   20    7   10   16    4 |    54   56   58   55   57   56   56   58   56   59   57    56
  32  |   13   15   18    7   15   12    6   12    8    9   19    4 |    15   20   24   21   20   22   17   25   19   20   26    19
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   13   14   18    9   17   14    6   16    6   11   17      |T   22   24   29   24   26   29   22   28   22   26   24    23
 WRMS |   12   13   18   10   17   14    6   16    6   10   18      |NE  19   21   27   22   23   26   19   25   19   24   21    20
 MEDI |   12   12   18    9   17   14    6   16    6   10   17      |MD  19   21   28   21   24   26   19   27   19   24   21    20

Table 3.1708.4   GPS week: 1708   Day: 4   MJD: 56204.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |    9   12   24   12   10   18    6   17    6   15   13    5 |    27   29   25   26   23   28   23   27   23   30   19    24
   2  |    8   11   18   10   15   16    4   14    6    9   19    4 |    14   18   20   14   15   19   12   19   13   17   20    13
   3  |    9   12   14   11   13   16    4   11    5   12   14    4 |    17   20   19   19   19   25   16   23   15   21   17    16
   4  |    9   13   14   14   10   13    4   13    7   13   19    4 |    16   20   15   16   22   15   13   15   15   16   12    13
   5  |   13   10   17    9   16   21    6   19    7   10   16    4 |    19   23   32   27   26   39   24   33   26   28   21    26
   6  |    9   11   12   10   16   14    4   12    4   10   11    4 |    19   20   21   21   24   25   19   26   19   18   19    18
   7  |   34   11   21   11   13   20   10   25    8   12   13    5 |    80  101  101  100   99  103   97   98   98  103   97   100
   8E |   19   15   22   12   16   16    8   18   12   19   20    6 |    15   20   27   16   20   17   16   25   21   23   25    16
   9  |   12    8   12   10   21   15    5   13    5    8   20    4 |    21   23   26   25   23   28   20   27   20   23   19    20
  10  |    7   12   13   10   12   15    4   12    6   10   19    4 |    14   17   15   11   21   15   10   16   12   15   15    11
  11  |   11   10   15   10   14   22    5   14    6   13   10    4 |    14   19   22   15   20   31   13   22   15   17   15    14
  12  |   10   13   22   12   16   16    6   19    4   13   20    5 |    16   21   26   22   28   25   18   24   20   22   23    19
  13  |    7   10   17   13   14   20    5   14    6   11   20    4 |    21   24   29   25   25   30   19   27   18   21   17    21
  14  |   11   14   14   13   15   15    5   14    7   11   18    4 |    15   22   24   23   24   24   17   23   15   20   13    18
  15  |    9   15   18   12   19   15    4   18    7   11   17    5 |    17   26   29   26   27   30   19   27   17   25   17    22
  16  |   12   14   22   11   14   16    5   17    7   10   18    5 |    16   20   26   22   20   22   17   25   14   18   16    16
  17  |   13    9   20   12   12   14    6   18    6   15   23    4 |    17   17   23   16   21   19   15   25   16   16   19    14
  18  |    9   11   17   14   19   19    5   19    4   11   14    5 |    25   26   25   21   19   26   22   30   20   24   22    21
  19  |    9   14   18    9   13   13    5   16    5   11   22    4 |    17   19   27   19   19   21   15   27   17   19   13    16
  20  |    9   11   16   15   14   17    4   16    6   13   17    4 |    17   20   21   19   13   26   15   23   15   23   21    16
  21  |    8    7   14    8   15   17    7   11    6   10   22    4 |    18   19   21   15   24   19   16   18   14   17   25    14
  22  |    8   10   13   13   16   20    5   13    5   10    8    4 |    19   20   20   21   13   26   18   24   15   20   17    16
  23  |    8   11   19   14   13   14    6   17    5   10   24    4 |    17   24   29   24   21   22   16   27   16   18   15    19
  25  |   11   13   29   11   12   17    6   14    7   10   12    5 |    14   13   25   17   20   23   13   23   17   18   14    14
  26  |    7   10   10   13   16   16    6   12    5   10   10    4 |    15   18   19   22   23   21   16   18   14   21   13    16
  27  |   12    9   13    8   18   13    5   13    5    9   20    4 |    11   14   21   17   17   16   12   20   14   18   16    13
  28  |   12   11   22   11   18   20    6   16    7   11   16    5 |    18   21   25   20   24   27   18   22   17   20   22    18
  29  |   18   19   17    8   16   15    6   18    9   15   26    5 |    20   26   24   19   21   18   17   27   21   22   18    18
  30  |   11   11   15   10   13   17    6   10    7   12   20    4 |    34   37   38   35   36   34   32   36   35   34   43    34
  31E |   13   11   19   13   14   18    9   22   11   15   24    5 |    69   70   71   70   67   72   69   74   64   78   57    69
  32  |   10   12   16   11   12   14    4   12    8    9   17    4 |    16   20   24   22   15   19   17   25   16   21   23    17
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   12   12   18   11   15   17    6   16    7   12   18      |T   21   25   28   24   25   27   21   28   21   25   22    22
 WRMS |   10   12   17   11   14   16    5   16    6   10   16      |NE  17   21   23   20   21   23   17   24   17   20   18    17
 MEDI |   10   11   17   11   14   16    5   14    6   11   18      |MD  17   20   25   21   21   25   17   25   17   21   19    17

Table 3.1708.5   GPS week: 1708   Day: 5   MJD: 56205.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |   12   12   22    8   10   21    4   14    6   13   10    4 |    24   23   26   29   27   32   24   31   27   27   22    26
   2  |   10    8   18    6   11   18    5   17    4    9   19    3 |    12   13   23   14   15   19   10   18   13   17   22    14
   3  |   11   12   13    5   12   18    4    9    5   11   14    3 |    13   13   17   13   18   17   11   18   12   18   15    12
   4  |   10   13   13    7    9   16    5   11    4   10   19    3 |    19   21   15   16   22   18   13   13   17   19   13    15
   5  |   13    7   14    7   13   25    6   17    4   13   16    4 |    22   25   33   27   27   42   24   33   27   35   24    29
   6  |   11   10   12    6   13   16    3    9    5   10   12    3 |    16   17   20   15   21   19   14   18   15   17   17    14
   7  |   11   14   20    6   11   21    5   25    8   11   16    5 |    34   33   38   34   34   41   31   35   31   38   25    33
   8E |   19   16   23    9   13   15    7   20    9   17   22    5 |    25   28   32   23   27   26   24   28   27   35   32    25
   9  |   11   10   12    8   16   20    6   13    6    9   17    4 |    22   24   27   23   27   32   20   26   23   24   25    22
  10  |    9    9   13    5   10   18    3   13    4    7   19    3 |    17   18   20   11   22   22   13   16   16   21   17    15
  11  |   10   10   14    6   11   25    4   11    6   15    9    4 |    14   19   23   17   20   31   15   22   18   19   15    17
  12  |   11   14   19    8   12   18    5   22    6   14   21    5 |    19   27   28   24   25   25   22   26   23   25   22    24
  13  |    7   10   17    7   12   21    3   16    6   11   18    4 |    19   19   28   23   23   29   18   25   19   24   15    20
  14  |    9   12   14    7    9   20    3   14    7    9   18    4 |    16   16   23   18   17   24   15   21   15   18   14    15
  15  |   13   10   18   12   15   19    6   19    6   12   19    4 |    17   16   28   26   21   31   16   25   14   22   18    19
  16  |   13   15   21    7   15   17    4   18    5    7   19    4 |    13   17   24   15   20   22   12   22   12   17   13    13
  17  |   12    8   20    7   10   15    4   19    5   10   26    4 |    18   19   23   16   22   19   16   22   16   20   18    17
  18  |   12    9   16    9   14   24    5   15    5    7   15    4 |    18   16   21   17   16   25   13   21   13   19   18    13
  19  |   11   11   17    7   11   18    3   14    5   10   22    4 |    16   16   25   18   17   21   15   25   17   19   13    17
  20  |    8   13   19   10   12   20    3   18    5    8   17    4 |    14   21   23   23   16   31   16   23   17   22   18    18
  21  |   12    7   13    6   10   20    5   13    6    6   18    3 |    19   18   19   15   23   24   13   19   16   16   26    15
  22  |   12   11   17    7   10   23    3   13    5    9   11    4 |    13   15   20   12   13   26   10   17   10   17   15    10
  23  |    8   13   17    7   12   18    4   17    5    8   23    4 |    17   22   27   21   24   24   19   27   20   22   18    20
  25  |    8   12   24   10    8   20    3   14    5    9   13    4 |    15   16   25   22   19   24   16   24   17   18   17    18
  26  |    9   10   10    8   12   19    3   12    5   12   10    3 |    12   12   20   18   19   23   13   18   12   22   13    15
  27  |   13   12   12    6   17   21    6   13    6   11   18    4 |    11   16   21   16   21   22   13   19   15   18   19    15
  28  |   13    8   19    5   12   18    4   17    5   11   16    4 |    18   17   24   17   22   25   17   21   17   19   21    17
  29  |   17   15   16    6   13   16    5   17    6   12   25    4 |    17   22   26   16   21   21   15   24   20   19   18    18
  30  |   11   11   13    5   13   17    3   10    5    7   15    3 |    62   61   64   62   65   61   63   62   64   61   62    63
  31  |   16   12   21   10   15   19    4   23    7   14   17    5 |    43   38   42   38   41   44   37   45   35   45   32    37
  32  |   11   11   18    9   11   17    4   13    5    7   17    3 |    15   20   25   22   21   27   18   27   20   21   26    20
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   12   11   17    8   12   19    4   16    6   11   18      |T   19   21   26   21   23   27   18   24   19   23   20    20
 WRMS |   11   11   17    7   12   18    4   15    6    9   17      |NE  18   19   24   20   22   26   17   23   18   21   19    18
 MEDI |   11   11   17    7   12   19    4   14    5   10   17      |MD  17   19   24   18   21   25   16   23   17   20   18    17

Table 3.1708.6   GPS week: 1708   Day: 6   MJD: 56206.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  cof  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   1  |   10   12   22   11    9   20    5   15    8   10   13    4 |    30   30   30   33   31   37   28   36   28   33   32    30
   2  |    8   12   17    9   11   18    4   15    4    8   21    4 |    20   22   26   16   13   23   15   21   17   18   28    14
   3  |    9   12   13    7   13   15    4    8    4   12   16    3 |    17   17   21   21   28   25   18   23   20   20   21    18
   4  |    8   14   13   10    8   16    4   10    6    7   15    3 |    22   24   22   23   25   23   21   20   22   19   21    19
   5  |    9    8   14    7   12   23    5   20    4   12   15    4 |    21   22   33   25   23   38   25   33   26   31   25    26
   6  |    8   12   11    8   14   13    3    8    4   11   19    3 |    22   22   25   27   30   29   23   27   25   20   29    22
   7  |   10   10   19    7   12   19    5   20    6   11   17    4 |    47   49   51   49   47   55   48   49   47   55   40    47
   8E |   18   22   21   17   17   21    9   16   10   25   23    6 |    27   30   37   32   35   33   29   34   34   40   34    33
   9  |   12   12   11    9   12   17    6   15    5   11   23    4 |    24   25   30   27   23   35   25   32   23   28   26    24
  10  |    9   13   16    9   12   14    5   12    6    8   17    4 |    18   20   24   16   22   22   14   19   16   17   16    14
  11  |    9   11   14   11   14   25    4   11    6   10   12    4 |    13   16   26   18   21   34   15   26   16   18   21    16
  12  |   16   12   18   14   13   19    4   18    7   11   22    5 |    17   23   24   23   25   30   20   25   20   22   22    20
  13  |    7   12   16   15   13   22    4   14    6   12   21    4 |    25   25   33   29   32   39   26   32   26   25   20    26
  14  |   10   14   15    9   15   17    2   15    7    7   20    4 |    18   19   29   27   33   31   21   24   22   25   19    23
  15  |   10   16   18    9   15   16    5   19    7   15   22    5 |    20   23   31   28   27   38   22   29   22   25   25    23
  16  |   12   13   21    8   14   17    3   17    7   13   21    4 |    16   17   26   20   23   26   17   25   17   21   21    16
  17  |   11   12   17   10   13   16    4   16    7   13   29    4 |    23   25   28   23   27   25   23   27   23   22   31    22
  18  |    8   14   16    9   16   21    5   21    5   11   17    5 |    24   27   28   19   19   31   21   34   22   24   29    21
  19  |    8   13   17    9   12   15    4   14    6   13   23    4 |    19   19   29   22   22   24   18   29   20   24   18    20
  20  |    8   14   17   10   12   19    4   18    6    9   16    4 |    21   22   29   20   22   34   19   29   21   25   27    21
  21  |   11   10   12    8   11   19    5   13    6   13   25    4 |    17   17   22   16   23   27   14   17   15   19   25    15
  22  |    9   12   15    8   15   23    4   17    5    7   13    4 |    17   19   20   13   15   29   12   23   15   15   21    12
  23  |   10   14   17   12   15   16    4   17    5   13   27    4 |    22   25   31   28   32   30   24   30   24   21   23    24
  25  |   10   17   22    9   12   20    4   15    5   10   12    4 |    15   19   20   18   16   29   15   26   15   17   17    15
  26  |    9   16   11    8   15   16    3    9    5   13   13    4 |    16   19   26   23   22   30   17   21   17   19   17    18
 X27  |   13   14   13    8   12   20    9   14    6  ---  ---    4 |    12   17   25   15   17   25   11   25   13  ---  ---    14
  28  |   11   12   19   13   14   17    4   15    5   11   19    4 |    19   21   27   27   30   29   21   23   20   23   26    22
  29  |   14   16   15    9   14   16    4   20    7   17   30    5 |    24   23   29   23   20   26   22   31   22   31   22    22
  30  |   10   12   12    7   10   16    4   10    6   13   20    3 |    70   68   73   71   62   72   68   75   69   78   72    70
  31  |   13    9   22   10   11   21    4   22    8   12   18    5 |    42   38   45   40   45   48   40   45   40   41   39    40
  32  |   10   12   17    9   11   15    4   11    7   11   18    4 |    16   18   25   20   19   26   16   28   18   21   30    18
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |   10   13   17   10   13   18    4   15    6   12   20      |T   23   24   29   25   26   32   22   29   23   26   26    23
 WRMS |   10   13   17   10   13   16    4   15    6   11   18      |NE  21   22   28   23   25   30   20   28   21   24   25    21
 MEDI |   10   12   16    9   13   17    4   15    6   11   19      |MD  20   22   28   23   23   30   21   27   22   22   25    21



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 4.1708   GPS week: 1708   MJD: 56200.0-56206.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2974 |U    5     5    14 |U    7     9    24 |U   29    30    79 |
cof | cof 2974 |U    6     5    18 |U    6     8    24 |U   46    35   105 |
emr | emr 2971 |     8     6    23 |U    7     7    27 |    48    41   110 |
esa | esa 2976 |     7     6    18 |U    5     7    23 |    60    46   126 |
gfz | gfz 2970 |U    7     5    18 |U    6     7    21 |U   53    39   116 |
grg | grg 2975 |    34    26    51 |    28    43   109 |    75    87   158 |
igr | igr 2975 |     7     5    19 |     6     7    23 |    53    38   115 |
igs | igs 2975 |     7     5    18 |     6     7    23 |    47    37   104 |
jpl | jpl 2971 |     7     6    21 |U    6     7    22 |    47    37    99 |
mit | mit 2976 |    10     7    22 |U   11    16    47 |U   49    38   115 |



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 5.1708.0   GPS week: 1708   Day: 0   MJD: 56200.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     4    10 |     6     8    25 |  ----  ----  ---- |
cof | cof 2976 |     4     4    10 |     6     7    26 |  ----  ----  ---- |
emr | emr 2972 |     5     7    18 |     6     7    23 |  ----  ----  ---- |
esa | esa 2976 |     4     4    10 |     5     7    23 |  ----  ----  ---- |
gfz | gfz 2968 |     4     3    12 |     5     7    23 |  ----  ----  ---- |
grg | grg 2976 |     6     7    21 |     7     9    25 |  ----  ----  ---- |
igr | igr 2976 |     5     4    11 |     5     7    23 |  ----  ----  ---- |
igs | igs 2975 |     4     4    12 |     5     7    22 |  ----  ----  ---- |
jpl | jpl 2972 |     5     4    15 |     7     8    21 |  ----  ----  ---- |
mit | mit 2976 |     6     5    14 |     7    10    45 |  ----  ----  ---- |

Table 5.1708.1   GPS week: 1708   Day: 1   MJD: 56201.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     6    14 |     6     8    23 |    46    53   170 |
cof | cof 2976 |     5     5    14 |     5     7    23 |    46    54   169 |
emr | emr 2972 |     7     7    20 |     7     7    27 |    49    52   151 |
esa | esa 2976 |     5     6    14 |     5     6    25 |    50    60   157 |
gfz | gfz 2968 |     5     7    15 |     5     6    21 |    49    53   160 |
grg | grg 2976 |     0     0     0 |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2976 |     5     7    14 |     5     7    23 |    49    53   165 |
igs | igs 2975 |     5     7    15 |     6     7    23 |    48    55   159 |
jpl | jpl 2972 |     6     8    17 |     6     7    25 |    52    54   147 |
mit | mit 2976 |    19    15    43 |     7     9    25 |    45    59   197 |

Table 5.1708.2   GPS week: 1708   Day: 2   MJD: 56202.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     4    14 |     7     9    18 |     9    18    21 |
cof | cof 2976 |     4     4    15 |     6     8    17 |     9    18    21 |
emr | emr 2971 |     7     4    21 |     8     7    17 |    11    23    26 |
esa | esa 2976 |     5     4    14 |     7     6    13 |    11    21    23 |
gfz | gfz 2971 |     4     4    16 |     7     7    16 |    11    20    22 |
grg | grg 2976 |   156   119   206 |   105   174   401 |   133   207   250 |
igr | igr 2976 |     5     4    16 |     7     6    16 |    10    17    24 |
igs | igs 2976 |     5     4    15 |     7     7    15 |    10    19    22 |
jpl | jpl 2971 |     5     5    15 |     7     6    17 |    11    15    26 |
mit | mit 2976 |     5     4    14 |     7     8    19 |    12    22    26 |

Table 5.1708.3   GPS week: 1708   Day: 3   MJD: 56203.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     4    16 |     6     9    21 |    43    35    75 |
cof | cof 2976 |     5     4    16 |     6     8    21 |    44    36    76 |
emr | emr 2972 |     6     5    20 |     7     8    28 |    45    43    72 |
esa | esa 2976 |     5     5    15 |     6     7    21 |    43    36    76 |
gfz | gfz 2971 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
grg | grg 2976 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2976 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
igs | igs 2975 |     5     4    15 |     6     7    20 |    44    38    76 |
jpl | jpl 2971 |     5     5    18 |     6     6    22 |    43    40    76 |
mit | mit 2976 |     5     5    15 |     6     8    22 |    46    34    76 |

Table 5.1708.4   GPS week: 1708   Day: 4   MJD: 56204.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2963 |     6     5    17 |     8    10    32 |    29    29    71 |
cof | cof 2963 |     6     6    17 |     9     9    33 |    29    28    71 |
emr | emr 2971 |     7     7    19 |    10     6    34 |    31    29    81 |
esa | esa 2976 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
gfz | gfz 2971 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
grg | grg 2975 |    13    10    20 |    11    11    38 |    24    41    66 |
igr | igr 2975 |     6     4    17 |     8     8    29 |  ----  ----  ---- |
igs | igs 2973 |     6     5    17 |     8     8    31 |    28    28    70 |
jpl | jpl 2971 |     7     5    17 |     8     7    27 |    28    28    72 |
mit | mit 2976 |     6     5    16 |     9     8    32 |    24    28    71 |

Table 5.1708.5   GPS week: 1708   Day: 5   MJD: 56205.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     4    16 |     6    12    25 |    17    17    56 |
cof | cof 2976 |     5     4    16 |     6    11    25 |    17    17    54 |
emr | emr 2972 |     8     5    19 |     8    10    31 |    21    25    92 |
esa | esa 2976 |     6     4    16 |     5    10    28 |  ----  ----  ---- |
gfz | gfz 2972 |     6     4    16 |     5    10    24 |    16    19    35 |
grg | grg 2976 |    10     8    22 |     9    14    49 |    15    19    72 |
igr | igr 2976 |     6     4    16 |     5    10    26 |    15    17    25 |
igs | igs 2976 |     6     4    16 |     6    10    27 |    18    19    51 |
jpl | jpl 2971 |     6     5    18 |     5     9    24 |    19    20    29 |
mit | mit 2976 |     7     5    16 |     6    11    31 |    28    20    59 |

Table 5.1708.6   GPS week: 1708   Day: 6   MJD: 56206.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
cof | cof 2976 |    16    10    41 |     5     7    23 |   130    60   239 |
emr | emr 2971 |    19     9    43 |     6     7    28 |   131    73   239 |
esa | esa 2976 |    16    10    41 |     5     8    25 |   137    66   247 |
gfz | gfz 2972 |    16     8    35 |     5     5    20 |   137    63   246 |
grg | grg 2976 |    17    11    38 |     7     7    32 |   128    81   244 |
igr | igr 2976 |    16    10    41 |     5     6    24 |   137    65   247 |
igs | igs 2976 |    15    10    41 |     4     7    23 |   132    63   243 |
jpl | jpl 2972 |    18    13    49 |     5     7    20 |   129    66   243 |
mit | mit 2976 |    26    12    39 |    35    56   152 |   139    65   262 |


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 6.1708   GPS week: 1708   MJD: 56200.500-56206.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      27     -25    -103     171      1 |       6     17
            |      12      20      58     125      7 |       2
cof   uuuxu |     -70     -47     216    -530     -9 |      17     23
            |      23      31      57     152      7 |       3
emr   uuuxu |      61       0      57     178    -14 |      55     57
            |      32      19      50      61      6 |       6
esa   uuuxu |     -50     -40     -38    -514     -8 |      20     25
            |      34      35      75     169      6 |       3
gfz   uuuuu |      24      62    -137    -179     -2 |       1     13
            |      18      22      58      75      7 |       2
grg   uuuux |      41      -2      46      66    -46 |      15     38
            |      18      26      50     130     38 |       6
igr   xxxxx |     -53      17     -98     -88      0 |      -4     14
            |      30      16      67      63      6 |       2
irf   xxxxx |      20      10     -38     -16      3 |       1      9
            |      24      13      46      49      6 |       1
jpl   uuuuu |       8       5     -25     139    -11 |      60     62
            |      30      30      67      60      8 |       6
mit   uuuuu |      24      10      -3     -21      7 |      -5     12
            |      29      25      72      61     12 |       1
ngs   uuuuu |      10      37     -72      63      1 |       9     16
            |      63      42     117      74      6 |       3
sio   xxxxx |      -9       5     -48    -209    -15 |      38     41
            |      26      18      57     111     10 |       7


Table 7.1708.0   GPS week: 1708   Day: 0   MJD: 56200.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      13     -48    -155     281     -4 |       7     17
cof   uuuxu |     -29     -27     136    -336     -8 |      19     24
emr   uuuxu |      98     -10      29     256     -7 |      59     62
esa   uuuxu |     -93     -23     -48    -350    -10 |      21     26
gfz   uuuuu |      35      66     -58    -130     -7 |       1     13
grg   uuuux |      50      -3      61      61    -27 |      18     36
igr   xxxxx |      -6      -4       6     -64     -1 |      -6     16
irf   xxxxx |      49       1      46      12      4 |      -1      9
jpl   uuuuu |      38     -21      83      70    -23 |      67     69
mit   uuuuu |      55      -7      61      11      9 |      -7     13
ngs   uuuuu |     -56      35    -251      36      4 |       5     14
sio   xxxxx |      24      -9     -93    -132    -31 |      46     48

Table 7.1708.1   GPS week: 1708   Day: 1   MJD: 56201.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      50      -4    -108      58     12 |       5     15
cof   uuuxu |     -83     -48     240    -580      2 |      17     22
emr   uuuxu |      95      18      64      66     -5 |      57     59
esa   uuuxu |     -68     -76    -106    -602     -1 |      20     24
gfz   uuuuu |      41      91    -129    -281      1 |       0     13
grg   uuuux |      73     -24      50     -49    -25 |      15     35
igr   xxxxx |     -21      45     -84     -90     10 |      -7     16
irf   xxxxx |      58      30     -70      21     -7 |      -1      9
jpl   uuuuu |      45      47     -11      95    -18 |      63     65
mit   uuuuu |      54      46      32      83     -9 |      -7     13
ngs   uuuuu |     -35      38    -111      -7     11 |       5     14
sio   xxxxx |      16      30     -38    -224    -18 |      41     43

Table 7.1708.2   GPS week: 1708   Day: 2   MJD: 56202.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      21     -33    -103     289     -8 |      10     17
cof   uuuxu |     -94     -62     200    -668    -18 |      22     25
emr   uuuxu |      69       2      61     157    -20 |      62     62
esa   uuuxu |     -15     -45     -44    -596    -20 |      25     27
gfz   uuuuu |       4      86    -106    -185    -14 |       5     11
grg   uuuux |      28     -33      94      -2      5 |      18     34
igr   xxxxx |     -71      21    -116     -48     -7 |      -1     11
irf   xxxxx |       2      -2     -12     -29     13 |       2      9
jpl   uuuuu |      30      43     -62     232    -14 |      65     66
mit   uuuuu |      27       5      -3     -36     29 |      -6     13
ngs   uuuuu |     -55      36     -80      96      5 |      11     17
sio   xxxxx |      -3      -7       3    -191    -22 |      43     44

Table 7.1708.3   GPS week: 1708   Day: 3   MJD: 56203.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      17     -42    -174      64      7 |       6     18
cof   uuuxu |     -78     -51     165    -718    -11 |      19     25
emr   uuuxu |      75     -16     105     163    -19 |      57     59
esa   uuuxu |     -45      14     -37    -625     -5 |      20     26
gfz   uuuuu |      -3      38     -90    -260     -1 |       1     15
grg   uuuux |      16      -6      52     -91    -22 |      20     34
igr   xxxxx |     -65      21    -127    -157      4 |      -3     15
irf   xxxxx |      20       6     -14     -46      1 |       1      9
jpl   uuuuu |      -8     -28      45     189     -8 |      61     63
mit   uuuuu |      34     -14       0      11      5 |      -5     13
ngs   uuuuu |      11      60    -142      51      1 |      11     17
sio   xxxxx |     -19     -12    -143    -302    -13 |      37     41

Table 7.1708.4   GPS week: 1708   Day: 4   MJD: 56204.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      30     -39    -129      89     -5 |       7     18
cof   uuuxu |     -91    -102     261    -552    -15 |      19     25
emr   uuuxu |      42      10     -29     177    -13 |      54     56
esa   uuuxu |     -42     -13    -123    -716     -7 |      21     26
gfz   uuuuu |      16      35    -220    -187     -4 |       2     15
grg   uuuux |      45      16     -61      75    -79 |      18     34
igr   xxxxx |     -90       4    -210    -171     -5 |      -2     14
irf   xxxxx |       2      -4     -78    -108      5 |       2      9
jpl   uuuuu |     -13     -15     -63     126    -10 |      59     61
mit   uuuuu |     -19     -18      81     -50     11 |      -4     12
ngs   uuuuu |     112     112     -46     103     -5 |      12     17
sio   xxxxx |     -42      -5     -61    -330    -16 |      36     40

Table 7.1708.5   GPS week: 1708   Day: 5   MJD: 56205.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      28      -4     -34     339      1 |       4     16
cof   uuuxu |     -53     -38     208    -323     -8 |      15     23
emr   uuuxu |      24      25      48     228    -15 |      50     53
esa   uuuxu |     -84     -55     -14    -241    -11 |      18     24
gfz   uuuuu |      31      52    -186     -66      7 |      -1     14
grg   uuuux |      34      44      79     272    -95 |      11     40
igr   xxxxx |     -49      27     -99      10     -1 |      -3     14
irf   xxxxx |      12      25     -56      29      2 |       1      8
jpl   uuuuu |       0       7     -72     174     -8 |      54     56
mit   uuuuu |      29      28     -73     -64      4 |      -4     12
ngs   uuuuu |      58     -18     120     -29     -6 |      11     17
sio   xxxxx |       5      32      19     -11     -8 |      32     36

Table 7.1708.6   GPS week: 1708   Day: 6   MJD: 56206.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      29      -3     -21      79      5 |       2     16
cof   uuuxu |     -63       0     303    -537     -2 |      12     20
emr   uuuxu |      21     -29     124     198    -18 |      45     48
esa   uuuxu |      -4     -83     107    -470     -3 |      14     22
gfz   uuuuu |      41      63    -172    -147      6 |      -3     13
grg   uuuux |      43      -5      47     195    -82 |       2     50
igr   xxxxx |     -68       7     -54     -94      1 |      -5     15
irf   xxxxx |      -4      11     -79       5      0 |       1      9
jpl   uuuuu |     -35       2     -95      87      1 |      50     52
mit   uuuuu |      -9      32    -121    -102      0 |      -3     11
ngs   uuuuu |      35      -1       6     189     -3 |      10     16
sio   xxxxx |     -42       3     -20    -276      1 |      28     32



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