[IGSREPORT-26047] Wk 2010 IGS Final Orbits

acc acc at igs.org
Wed Aug 1 20:17:34 PDT 2018


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2010   (Jul 15, 2018 - Jul 21, 2018)

Contacts: acc at igs.org


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

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

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

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

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

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

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


SOFTWARE:
---------

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

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

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

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

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


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

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

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

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



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

igs2010[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2010[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2010[0-6].cls  IGS GPS clock combination summary report.
igs20107.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20107.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, GRG, MIT, and
    JPL. The other centres are excluded because of poorer consistency, they provide
    broadcast clocks, or clock corrections are not provided (SIO). The clock
    information not used is still compared to the combination for completeness. The
    value of 999999.999999 microseconds, according to the SP3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks
    contributed from that AC should not be included with weight in this
    combination. This is done to ensure a high level of consistency between the TRF
    and the orbital frame. However, there is an exception for the clocks if the AC
    is the reference center. In that case, only the clocks from that AC are
    included with weight.
    
    Starting week 1707:
      cod = cof${wwww}[0-6].[clk,snx,sp3] & cod = cof${wwww}7.[erp,sum]

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new orbit solution from CNES/GRGS (GRG) is included with
    weight. GRG clocks are included with weight starting 12-Aug-2012 (GPS Week
    1701, day 0, MJD 56151), after a procedural change to generate estimates in
    the center-of-figure frame instead of the center-of-mass frame. GRG LOD
    estimates are included for comparison only.

 3. The following centre clock solutions, which provide broadcast clock
    corrections, were excluded from the combination but kept in the combination
    statistics:
             -> Centre: NGS 

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation. Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | TIXI NAUR TIXI
                0  |  ESA   | 18 18 LHAZ LHAZ MAS1
                0  |  GFZ   | 18 18 ALIC GODE LHAZ MAS1 REUN SAVO VILL ALIC GODE
                0  |  GFZ   | LHAZ MAS1 REUN SAVO VILL
                0  |  GRG   | GLSV MAL2 MAS1 WIND GLSV MAL2 MAS1 WIND
                0  |  JPL   | ALIC ALIC
                0  |  MIT   | ALBH BAKE CHUR DARW FALK FLIN GRAZ HLFX SCH2 STR1
                0  |  MIT   | SUTH WHIT ALBH BAKE CHUR DARW FALK FLIN GRAZ HLFX
                0  |  MIT   | SCH2 STR1 SUTH WHIT
                1  |  COD   | 18 18 TIXI LHAZ NAUR TIXI
                1  |  ESA   | 18 18 BRST MAL2 BRST MAL2
                1  |  GFZ   | 18 18 HERS HYDE MAL2 REUN HERS HYDE MAL2 REUN
                1  |  GRG   | GLSV LPGS WIND GLSV HYDE LPGS MAL2 WIND
                1  |  JPL   | SAVO SAVO
                1  |  MIT   | ALBH BAKE CHPI CHUR DRAO FALK GRAZ HARB IISC STR1
                1  |  MIT   | SUTH TONG WAB2 WHIT ALBH BAKE CHPI CHUR DRAO FALK
                1  |  MIT   | GRAZ HARB IISC MAW1 STR1 SUTH TONG VILL WAB2 WHIT
                2  |  COD   | 18 TIXI WIND YAKT MAL2 NAUR NOVM TIXI TLSE WIND YAKT
                2  |  EMR   | 18
                2  |  ESA   | 18 18 LHAZ LHAZ MANA TLSE
                2  |  GFZ   | 18 18 GODE REUN YAKT GODE REUN YAKT
                2  |  GRG   | 17 17 GLSV ULAB GLSV ULAB
                2  |  JPL   | ADIS NOVM
                2  |  MIT   | ALBH BAKE BRST CHPI CHUR FLIN SCH2 SUTH ALBH BAKE
                2  |  MIT   | BRST CHPI CHUR FLIN SCH2 SUTH
                3  |  COD   | 21 21 CAS1 LHAZ SOFI WIND CAS1 LHAZ MAL2 NAUR SOFI
                3  |  COD   | THU2 WIND
                3  |  ESA   | 21 22 21 CAS1 CAS1
                3  |  GFZ   | 18 18 CEDU GODE REUN THU2 CEDU GODE REUN
                3  |  GRG   | GLSV GLSV MAL2
                3  |  JPL   | SAVO
                3  |  MIT   | BAKE BRST CHPI DUBO MAS1 NNOR SCH2 STJO TWTF BAKE
                3  |  MIT   | BRST CHPI DUBO MAS1 NNOR SCH2 STJO TWTF
                4  |  COD   | TIXI NAUR TIXI
                4  |  ESA   | MAL2 REUN MAL2 REUN
                4  |  GFZ   | 18 18 GODE REUN ZAMB ALBH GODE REUN ZAMB
                4  |  GRG   | MAL2 MAL2
                4  |  JPL   | SAVO SAVO ZAMB
                4  |  MIT   | BAKE BRST CHPI CHUR DARW DRAO DUBO FLIN NRC1 SUTH
                4  |  MIT   | VILL BAKE BRST CHPI CHUR DARW DRAO DUBO FLIN NRC1
                4  |  MIT   | SUTH VILL ZAMB
                5  |  COD   | LPGS TIXI ULAB LPGS NAUR SCH2 TIXI ULAB
                5  |  EMR   | 21
                5  |  ESA   | 21 MAL2 OUS2 MAL2 OUS2
                5  |  GFZ   | 18 18 GODE REUN GODE REUN
                5  |  GRG   | GLSV MAL2 TEHN WIND GLSV MAL2 RIO2 TEHN
                5  |  JPL   | SAVO SAVO SCH2
                5  |  MIT   | ALBH BAKE CHPI CHUR DUBO NRC1 SUTH WHIT ALBH BAKE
                5  |  MIT   | CHPI CHUR DUBO NRC1 OHI2 SUTH WHIT
                6  |  COD   | ZAMB NAUR RIO2 ZAMB
                6  |  ESA   | OUS2 OUS2
                6  |  GFZ   | 18 18 GODE REUN TIDB GODE REUN TIDB
                6  |  GRG   | BRST GLSV KRGG LHAZ LPGS MAC1 RABT WIND BRST GLSV
                6  |  GRG   | KRGG LHAZ LPGS MAC1 RABT REUN WIND
                6  |  MIT   | BAKE CHPI CHUR IISC MAS1 NNOR NRC1 STR1 SUTH BAKE
                6  |  MIT   | CHPI CHUR IISC MAS1 NNOR NRC1 STR1 SUTH

 5. Starting on 22-Oct-2000 (GPS Week 1085-0; MJD=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. The AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 6. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) all IGS products, including the IGS combined
    orbits, are based on the IGS realization of the ITRF2005 reference frame
    (IGS05). For more information see IGSMAIL #5447. The IGS05 frame is also the
    basis for the homogeneously reprocessed IGS products from GPS Weeks 730 to 1459
    (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products, are
    based on the IGS realization of the ITRF2008 reference frame (IGS08). For more
    information see IGSMAIL #6354.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.

 7. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .3     .2     .9       6     14     -4    -.56
       EMR  |   0 |    -.7   -3.5  -11.1      -3     16     17    -.37
       ESA  |   0 |     .5    -.9     .3     -10    -22     17    -.57
       GFZ  |   0 |     .2     .3     .7      12    -26     12    -.51
       GRG  |   0 |    -.3   -7.2    -.8      57      8     42    -.27
       JPL  |   0 |    1.0  -10.5   -7.3     -14      3      7    -.44
       MIT  |   0 |   -3.1  -13.0    5.7     -19     29     15    -.19
       NGS  |   0 |   -1.2  -10.6   -4.7      38    -43    -70    -.50
       SIO  |   0 |   -4.6   -7.1  -13.3      -1    -15     21    -.29

       COD  |   1 |    -.0     .2    1.5      14     22     -1    -.43
       EMR  |   1 |    3.5   -8.0  -15.1      -4      1     32    -.34
       ESA  |   1 |    -.1    -.5    -.1       4    -32      8    -.65
       GFZ  |   1 |     .6     .4    1.0      12    -24      4    -.56
       GRG  |   1 |    1.8   -8.0   -2.3      44     20     50    -.43
       JPL  |   1 |    5.8   -8.6   -9.4       1     -1      1    -.42
       MIT  |   1 |   -2.9   -8.8    -.3      -8     25     13    -.17
       NGS  |   1 |    2.8   -9.2   -6.8      46     24    -24    -.32
       SIO  |   1 |    2.5   -5.2  -10.6       6      0      0    -.27

       COD  |   2 |    -.0     .4    1.0      16     18    -11    -.50
       EMR  |   2 |    -.1   -7.2  -13.0       0      4     37    -.30
       ESA  |   2 |    -.3    -.2     .3       9    -23     14    -.57
       GFZ  |   2 |     .1     .5     .4       9    -25      4    -.49
       GRG  |   2 |    1.5  -10.1   -5.1      56     -7     72    -.30
       JPL  |   2 |    3.4  -12.8   -3.6       8     -3     15    -.39
       MIT  |   2 |   -2.4  -11.3   -1.3      13     17      9    -.19
       NGS  |   2 |     .1  -15.8   -8.3      66      9    -84    -.39
       SIO  |   2 |   -2.5   -8.7  -12.7       6     -2     26    -.26

       COD  |   3 |     .2     .3    1.2      16     25    -19    -.61
       EMR  |   3 |   -3.3   -3.0  -10.9      -6      0     27    -.25
       ESA  |   3 |     .5    -.6     .6       4    -13     15    -.57
       GFZ  |   3 |     .6     .4     .7       7    -28      1    -.54
       GRG  |   3 |    -.3   -8.3     .7      63      4     47    -.31
       JPL  |   3 |    2.8  -10.1   -3.8       9     -7    -10    -.51
       MIT  |   3 |   -4.8   -9.0    3.2      -3      6     -1    -.28
       NGS  |   3 |   -2.6   -8.9   -9.3      36     23    -64    -.49
       SIO  |   3 |   -3.5   -4.1  -15.0      11     11      4    -.27

       COD  |   4 |     .7     .1    1.7       7      8    -17    -.74
       EMR  |   4 |   -3.1   -1.9  -10.6      -3      1     11    -.49
       ESA  |   4 |     .1    -.1     .0       1      1      0    -.56
       GFZ  |   4 |     .2     .5     .7      -1    -22      2    -.46
       GRG  |   4 |   -1.6   -2.3    -.1      61     -7     27    -.51
       JPL  |   4 |   -1.8   -7.8   -3.8       9     -5      7    -.70
       MIT  |   4 |   -6.0   -7.0    5.2      -8     34     21    -.32
       NGS  |   4 |   -3.5   -4.9   -1.9       5      3    -12    -.44
       SIO  |   4 |   -6.3   -3.7  -15.2     -15      7     11    -.51

       COD  |   5 |     .4     .1    1.9      22     18     -2    -.66
       EMR  |   5 |    -.0   -4.1   -4.1     -21     -9     28    -.45
       ESA  |   5 |     .5    -.3    -.1       5     -4      7    -.62
       GFZ  |   5 |     .5     .4     .7       1    -32     -3    -.54
       GRG  |   5 |   -4.4   -3.6    3.1      36      8     56    -.60
       JPL  |   5 |     .4   -4.3    -.9      -6      9      2    -.70
       MIT  |   5 |   -5.9   -4.9    6.7     -14     33      8    -.28
       NGS  |   5 |   -2.1   -3.7   -2.0      26     13    -53    -.44
       SIO  |   5 |   -5.1   -2.8  -10.4      -8      2     -6    -.42

       COD  |   6 |     .2     .0    1.6       9     25    -10    -.61
       EMR  |   6 |    -.4   -4.6   -9.3      -8    -14     66    -.56
       ESA  |   6 |     .1    -.9    -.2       2     -9     10    -.73
       GFZ  |   6 |     .5     .3     .8       1    -26     -4    -.58
       GRG  |   6 |     .5    1.0    4.5      46     10     67    -.62
       JPL  |   6 |    -.9   -3.4   -6.3      -3      0      0    -.80
       MIT  |   6 |   -3.9   -5.1    4.3     -24     40      1    -.21
       NGS  |   6 |   -2.9   -6.8   -5.3      21     18    -26    -.47
       SIO  |   6 |   -5.9   -4.8  -12.7     -19     12      3    -.41


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

 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; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        ftp://igs.org/pub/station/general/igs14.atx


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.2010.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2010.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 2.2010.[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 3.2010.[0-6]). The first type of satellite RMS is
based on orbit combination and the second RMS type is a result of the 7-day
arc evaluation of each centre ephemerides. The fourth part, Table 4, is a
weekly summary of the daily precise navigation summaries for centres
providing both orbit and clock solutions. It contains weekly station RMS
w.r.t. the initial coordinates for the Latitude, Longitude and Height 
components for up to three IGS stations (Table 4.1307). The fifth part, 
Table 5, is similar to Table 4 and contains daily precise navigation
statistics (Tables 5.2010.0-6). The sixth part, Table 6, is a weekly
summary of daily ERP combination statistics. The seventh part, Table 7,
contains the daily ERP statistics. But this is not the IGS official ERP
combination products (which come from the accompanying SINEX combination)
but provided to check combination consistency, etc.

In Tables 1-3, the most important statistic which is meaningful for intra
centre/satellite analysis is labeled WRMS. It is a weighted RMS where
normalized weights are based on accuracy codes given in the SP3 files, and
should not be affected by downweighted/problem satellites when acknowledged
by individual centres in their SP3 file.
                                                                               

             
Table 1: Week 2010 summary.                       (Jul 15, 2018 - Jul 21, 2018)

Table 1.2010.a   GPS week: 2010   MJD: 58314.000-58320.000

         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  262|    1     0     4     9    12     7   .04   11   10 |    -619     -93      7     76
        |    0     0     0     6     8    12   .04           |     178     259
emr   80|   -1     1    -3     9     3    12   .10   12   12 |  136749     309     14    124
        |    0     1     0     9     8     9   .02           |     362     651
esa  150|    0     0    -4    -6   -10   -12  -.04    9    9 |   -1935     310     10    185
        |    0     0     0     6    15    11   .05           |    1049     651
gfz  184|   -1     0     0   -22   -10     0   .08   10    9 |    -246     149     12    121
        |    0     0     1     6    12     8   .03           |     307     286
grg  106|    2     0     1   -14    15    -6  -.14   13   13 |      24      27     11    146
        |    0     0     1     7    10    31   .02           |      56     159
igr  n/a|    0     0     1    -8    -4    -7  -.03    4    4 |    1581     -75     11     66
        |    0     0     0    10     7    13   .02           |     956     827
jpl   80|   -1     1     0     7     9    19   .11    9    9 |  138699     275      8     91
        |    0     1     1     9    13     6   .02           |     571     684
mit  349|    0    -1     2    -8   -10    -3  -.04    9    8 |    -472     142     38    461
        |    0     0     1    10    15    11   .01           |     405     219
ngs  206|    0     0     0    14     4     0  -.06    9    8 |    -625     -95    892   2063
        |    1     0     1    16    15    12   .04           |      87      75
sio  343|    0    -1     1     4   -12   -18  -.13   12   13 |     ---     ---    ---    ---
        |    0     0     1    12    21    22   .03           |     ---     ---


Table 1.2010.b   GPS week : 2010   MJD: 58314.000-58320.000   

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

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2010.0   GPS week: 2010   Day: 0   MJD: 58314.000                            

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  263|    1     0     3    16    28     5   .03   11   11 |    -486    -160      7     77
emr   80|   -1     1    -3    20    16    13   .10   12   12 |  137275    -240     16    117
esa  150|    0     0    -4   -11    -8   -18  -.10    9    9 |    -827     320     10    192
gfz  184|   -1     0     0   -25     6    -6   .05   11   10 |     311    -415     12    101
grg  110|    2     0     3   -13    16    16  -.12   13   13 |      97     228     12    151
igr  n/a|    0     0     0     9    -3   -21  -.03    4    4 |    3488    -834     11     79
jpl   80|   -1     1    -2    -6    24    14   .10    9    9 |  139666    -420      8     90
mit  349|    0    -1     3    -3   -18     4  -.03    9    8 |    -114     208     39    484
ngs  208|    0     0     0    11   -13   -12   .00    9    8 |    -495    -114   1202   2079
sio  342|    1    -2     1    15   -51    14  -.08   13   14 |     ---     ---    ---    ---

Table 2.2010.1   GPS week: 2010   Day: 1   MJD: 58315.000                            

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  263|    1     0     5    12     9    -8   .02   12   11 |    -998     421      9     81
emr   80|   -1     0    -2     9    -6     2   .09   13   13 |  136563      33     17    114
esa  150|    0     0    -5    -7   -42   -34  -.09   12   10 |   -1031    -825     10    170
gfz  184|   -2     1    -1   -30    -1    -7   .06   10    9 |    -471     391     12    101
grg  109|    2     0     1    -8     8    42  -.14   13   13 |       3     -30     12    128
igr  n/a|    0     0     1    -9    -2     0  -.05    4    4 |    2132    -428     13     66
jpl   80|    0     1     0    19     7    11   .08    9    9 |  139243     -84     10     92
mit  349|   -1    -1     1   -17     9     7  -.05    9    8 |    -787     349     31    528
ngs  212|    1    -1     0    10    13     2  -.01    9    8 |    -788      21    890   2332
sio  341|    1     0     3     9     5     0  -.10   12   13 |     ---     ---    ---    ---

Table 2.2010.2   GPS week: 2010   Day: 2   MJD: 58316.000                            

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  261|    0     0     4    19     6    -1  -.00   10    9 |    -565     -11      7     78
emr   80|   -1     0    -3    -3     8     9   .14   13   13 |  136273     -80     15    108
esa  150|    0     0    -3    -1   -10   -11  -.09    9    9 |   -3242     219      9    169
gfz  183|   -1     0     1   -15    -2    -8   .14   10    9 |    -421     -11     11    118
grg  106|    3     0     1   -22     0    20  -.12   12   14 |      51    -164     11    153
igr  n/a|    0     1     2    -9     4   -23  -.05    4    4 |    1496    -499     10     58
jpl   80|   -1     1     0    11    11    20   .11    9    9 |  137992      62      9     92
mit  349|    0     0     1     5   -24     6  -.05   10    9 |    -272     155     37    511
ngs  204|    1     0    -2   -10    33   -10  -.06   10    9 |    -622     -18    697   2062
sio  342|    0     0     0    23   -23    -9  -.16   13   15 |     ---     ---    ---    ---

Table 2.2010.3   GPS week: 2010   Day: 3   MJD: 58317.000                            

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  264|    0     0     5     6     2    16   .01   11   10 |    -618    -205      8     69
emr   80|   -2     0    -5     2    10     2   .09   13   13 |  136376     272     14    143
esa  150|    0     0    -5     2    -6     1   .02    9    9 |    -830     349     14    212
gfz  185|   -1    -1     0   -29   -13    14   .11   10    9 |    -422     188     13    132
grg  108|    2     0     2   -13    22   -21  -.13   12   11 |      46    -105     11    148
igr  n/a|    0     0     1   -21     2    14   .01    4    4 |    1236    -320     12     70
jpl   80|    0     3     1     9    13    15   .11    9    9 |  138296     134      9     84
mit  349|   -1    -1     2     4   -23   -21  -.03    9    8 |    -550    -132     42    342
ngs  205|    2     0    -1    13    -2    11  -.07    9    7 |    -608    -202    734   1742
sio  343|    0    -2     1     1    -3   -24  -.14   13   12 |     ---     ---    ---    ---

Table 2.2010.4   GPS week: 2010   Day: 4   MJD: 58318.000                            

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  262|    0     0     4     2    12    13   .06   12   11 |    -627    -186      7     70
emr   80|   -2     2    -2    20    -4    20   .10   12   12 |  136787    -144     14    143
esa  150|    0     0    -3    -7     9   -12   .01    8    8 |   -2411    1268      9    196
gfz  185|    0     0     0   -18   -26     8   .10   10    9 |    -143     254     11    134
grg  104|    2     0     0   -10    10   -39  -.18   13   12 |      45     -41     11    153
igr  n/a|    0     0     0   -17   -19    -9  -.04    4    4 |    1080    -492     11     63
jpl   80|   -1     0     0    10    -7    29   .10    9    9 |  138514     -64      7     93
mit  349|    0    -1     3   -16     3     1  -.02    9    9 |     140    -123     35    488
ngs  207|    0     0     1    21    -3   -10  -.09    9    8 |    -648    -146    721   1850
sio  342|    1    -2     0    -6    14   -28  -.16   13   13 |     ---     ---    ---    ---

Table 2.2010.5   GPS week: 2010   Day: 5   MJD: 58319.000                            

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  266|    0     0     4     1     9    28   .08    9    9 |    -583     -91      7     82
emr   80|   -1     2    -2    14    -3     9   .10   12   12 |  136975     745     13    121
esa  150|    2     0    -2   -16    -4    -7  -.03    8    9 |   -2095      29      8    171
gfz  186|    0     0     0   -12   -16     5   .04   10   10 |     -34     218     13    151
grg   96|    3     0    -2   -26    30   -27  -.16   15   14 |      15     251     11    135
igr  n/a|    0     0     0   -10    -4    -9  -.03    4    4 |     905     484     10     66
jpl   80|   -2     0     0    -4    24    23   .15    8    8 |  138644     659      8     90
mit  349|   -1    -1     2   -16   -24   -14  -.03    9    8 |    -731     448     38    466
ngs  207|    0     0     0    44     5    -6  -.07    9    7 |    -582     -86   1215   2151
sio  347|    1    -2     0   -10   -17   -27  -.14   12   13 |     ---     ---    ---    ---

Table 2.2010.6   GPS week: 2010   Day: 6   MJD: 58320.000                            

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  261|    1     0     3     7    14    -4   .10    9    9 |    -461    -423      7     76
emr   80|   -1     0    -2     4     6    28   .06   12   12 |  136995    1582     14    124
esa  150|    0     0    -4    -3    -9    -1  -.02    8    8 |   -3109     812     10    185
gfz  182|    0     0     0   -23   -20     1   .09   11    9 |    -545     419     14    114
grg  109|    3     0     2    -6    17   -34  -.13   15   13 |     -84      53     10    158
igr  n/a|    0     0     0     0    -8    -2  -.04    4    4 |     733    1562     10     61
jpl   80|   -1     1     0    12    -7    22   .10    9    9 |  138538    1642      8    102
mit  349|    0     0     4   -16     4    -8  -.03   10    9 |    -995      93     47    412
ngs  204|   -1    -1    -2    13     1    21  -.11    9    8 |    -632    -120    789   2230
sio  346|    0    -1     1    -3    -9   -52  -.13   11   11 |     ---     ---    ---    ---

       
       
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 3.2010.0   GPS week: 2010   Day: 0   MJD: 58314.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8    9    9    8   16    4    7   11    8   10    3 |    36   38   39   37   37   36   35   38   39   36    36
   2E |   15   10    6   10   12    3   11   16    8    8    4 |    38   36   38   43   40   38   36   45   41   39    39
   3  |    7    8    7    8   12    4    7    6   10    8    3 |    30   34   29   31   38   27   32   31   27   32    30
  X4E |    3  ---  ---  ---  ---   28  ---  ---  ---  ---    0 |    40  ---  ---  ---  ---   34  ---  ---  ---  ---    40
   5  |   14    7   11   11   12    3   11   11   10   13    4 |    48   47   47   43   48   45   50   44   47   42    45
   6E |   12    9   10    7   14    3    7    9    8   12    3 |    33   38   37   36   34   35   36   38   35   36    35
   7  |   12   11   12   11   14    4    9   11   10   16    4 |    36   41   40   36   42   36   40   37   38   38    37
   8  |    7    7    7   11   11    3    8    6    5   13    3 |    23   25   24   26   26   22   24   22   25   26    23
   9  |   12   11    9   14    7    4   11    8    8    9    3 |    27   39   26   28   25   28   38   29   25   33    29
  10  |   10    7    7    6   12    3    7    5    6    7    2 |    35   34   33   33   39   33   33   32   32   34    33
  11  |   11   10   14    8   14    3    7    8    6   13    3 |    29   32   34   31   31   28   30   31   29   29    29
  12E |    9   22    7   11   16    4   13   13   10   12    4 |    36   27   32   38   29   33   29   39   38   34    33
  13  |   12    8    9    7    7    4   10    7    9   15    3 |    24   23   24   28   22   24   25   26   24   28    24
  14  |    9    5   10   15   10    3    7   10    7   12    3 |    21   20   22   18   22   18   18   21   20   18    18
  15  |   10   11    9    7    7    2   10    9    8   15    3 |   107  111  109  109  109  108  109  112  109  112   109
  16E |   13   25    7   13   18    5    9   13   13   15    5 |    37   36   35   43   39   37   34   45   41   42    37
  17  |    8   11    8   13   14    3    9   10    8   16    3 |    25   27   23   28   24   23   27   27   24   20    23
  18E |   14   15   11   12   15    4   12    8   10   17    4 |   102  104   99   98  101  102  102  100  101  100   100
  19  |   10   15    7   14   11    4   11   11   10   20    4 |    24   28   26   31   24   26   29   29   27   24    25
  20  |   12   14   10   14   16    5    9   11   10   15    4 |    37   33   33   39   39   33   33   39   37   36    34
  21E |   13    8    6   12   25    4    7   10    8   10    4 |    21   22   23   28   29   23   21   27   27   28    23
  22  |   12    8   10   11   15    3    9    8   11   16    4 |    32   31   27   32   37   27   29   28   28   25    28
  23  |    9   17   10    8    8    5    8    8    8    9    3 |    20   20   21   25   17   18   14   20   19   22    18
  24  |   10    7    8    7    8    3    7    4    9    7    2 |    27   32   34   27   29   30   32   29   33   32    30
  25E |   13    9    8    5   11    4    8    7    8   11    3 |    42   45   46   44   49   43   45   44   42   49    44
  26E |   15   10   10   10   17    4    7    9   10    8    3 |    38   37   37   34   37   33   35   34   35   34    35
  27  |    5    7    6    8   12    4    7    5    7    8    2 |    26   25   22   26   25   21   24   23   25   23    23
  28E |   11   11    6   12   15    6   13   12    6    9    3 |    63   62   59   61   57   59   59   64   59   62    60
  29  |   12   18   10   11   11    3    9   11   11   17    4 |    36   33   29   30   34   29   31   30   31   34    31
  30  |    9   10    5    6   12    2    8    8    6   10    3 |    36   35   34   31   39   32   34   30   34   30    33
  31  |   13   11   10   14   15    4   10   11   10   17    4 |    33   38   34   33   36   30   37   31   32   29    32
  32  |   16   13    9   11    8    5   11    9    8   11    3 |    29   40   27   31   32   31   38   28   31   36    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   12    9   11   13    4    9    9    9   13      |T   37   38   36   38   38   35   37   37   37   37    36
 WRMS |   11   12    9   10   13    4    9    8    8   14      |NE  33   35   33   34   35   31   34   33   33   33    32
 MEDI |   11   10    9   11   12    4    9    9    8   12      |MD  33   34   33   32   36   31   33   31   32   34    32

Table 3.2010.1   GPS week: 2010   Day: 1   MJD: 58315.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8   11    9    6   13    4    9   11    8   10    3 |    35   37   37   35   36   34   34   34   35   37    35
   2E |   14   11    5    8   15    5   10   10    7    6    3 |    37   37   39   37   39   38   37   39   41   37    38
   3  |    9    8    7    7   12    4    8    4    7    8    2 |    19   21   17   19   21   16   21   16   14   16    17
  X4E |    3  ---  ---  ---  ---   25  ---  ---  ---  ---    0 |    49  ---  ---  ---  ---   38  ---  ---  ---  ---    48
   5  |   11    8   10   13   13    3   11   10    9   10    3 |    38   38   36   35   39   36   39   36   38   32    36
   6E |   12   12   10    9   15    5    7    9    8   10    3 |    36   37   37   37   33   34   36   35   35   36    35
   7  |   12   12   11   11   12    4    9   11   11   16    4 |    28   30   25   28   28   25   29   27   29   27    26
   8  |   10    8   10   10   11    2    8    5    9    8    3 |    22   22   21   22   20   18   21   18   19   18    19
   9  |   11   12    8    8    6    6   11    5    8   10    3 |    20   34   19   23   17   22   33   21   21   24    23
  10  |   10    6    7    6   13    3    7    6    7    8    2 |    20   20   17   20   22   16   20   17   16   22    18
  11  |    7    9   14    6   13    3    7    8    7   11    3 |    24   28   28   24   23   23   26   23   24   21    23
  12E |   13   20    8   11   14    4   13   12   13    8    4 |    33   29   35   38   31   33   29   38   40   35    33
  13  |    7    7    9   10    7    4    9    8    8    9    3 |    22   22   22   29   21   20   24   24   23   22    22
  14  |   13    7   12   11   10    3    5    9    7   11    3 |    26   24   26   24   25   21   23   23   24   22    22
  15  |   10   15    9    9   16    5   12   15    8   12    4 |   122  123  122  124  120  123  123  125  121  124   122
  16E |   14   23    7   14   17    6    7   13   12   15    4 |    25   30   28   34   23   29   25   35   34   31    28
  17  |    9   10   10   13   14    6    9   11    8   15    4 |    22   27   22   27   23   23   27   27   25   20    23
  18E |   14   16   41   13   18    6   14    9   10   17    6 |   106  106  110  104  108  104  105  104  106  110   105
  19  |   11   14    7   14   14    5   11   11    9   18    4 |    23   28   24   30   22   23   27   26   25   21    24
  20  |    9   11    9   11   17    4   10   11    9   17    4 |    16   20   18   20   24   18   18   20   18   18    17
  21E |    9   12    8   13   22    6    6    9    8    8    3 |    27   25   25   31   26   24   25   28   27   28    26
  22  |   13   10   13   10   16    4   10    8   11   15    4 |    19   19   17   21   22   16   18   17   18   14    15
  23  |    9   17   12    7    6    6    8    7   11    9    3 |    17   16   19   19   14   14   14   18   15   18    15
  24  |   10   11   12    8    8    6    7    5    6    7    3 |    20   25   24   22   20   22   25   21   26   21    21
  25E |   13   14   10    6   12    4    8    5    8    9    3 |    28   33   29   28   27   26   30   27   26   29    27
  26E |   26   12   11   15   13    4    7    9   10    6    4 |    31   25   24   29   21   20   22   23   21   22    22
  27  |    9    8    8    6   10    3    7    6    6    5    2 |    25   23   23   24   20   19   23   20   21   23    21
  28E |    9   11    5   12   17    4   11   11    8   10    3 |    30   30   28   27   33   30   30   32   28   28    28
  29  |   13   19   11   10   11    3    9    9   11   16    4 |    30   25   20   25   24   22   24   24   24   26    23
  30  |    6   12    6    8   11    3    9    8    7    8    3 |    28   30   28   26   31   27   30   28   27   26    27
  31  |   18   13   11   12   14    4    9   11   10   15    4 |    21   30   25   29   27   23   27   26   26   24    24
  32  |   11   11   12    5    7    5    9    9    8   13    3 |    31   39   29   33   28   28   37   27   32   35    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   13   12   10   13    4    9    9    9   12      |T   32   33   31   33   31   30   32   31   31   31    31
 WRMS |   11   13   10    9   13    4    9    8    8   13      |NE  28   30   27   29   28   26   29   27   27   27    27
 MEDI |   10   11   10   10   13    4    9    9    8   10      |MD  26   28   25   28   24   23   27   26   26   24    24

Table 3.2010.2   GPS week: 2010   Day: 2   MJD: 58316.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    5   13    7    6   13    4    8   11    7   10    3 |    33   39   36   35   38   34   35   33   36   35    35
   2E |   14   11    6   10   14    5   10    9   10   10    3 |    49   53   51   55   50   52   50   54   56   54    52
   3  |    6    8    6    6   10    3    8    7    7    7    2 |    21   24   20   18   20   18   24   18   19   19    19
  X4E |    2  ---  ---  ---  ---   20  ---  ---  ---  ---    0 |    28  ---  ---  ---  ---   25  ---  ---  ---  ---    29
   5  |   11    8   10   10   10    3    9    9   10   15    3 |    36   38   35   34   36   33   38   35   34   31    34
   6E |   10   12   10    9   22    5    7    9    8   10    4 |    34   35   36   35   37   34   35   34   36   35    34
   7  |   10   10    9   11   12    4    9   11   11   16    4 |    32   34   29   29   32   27   33   31   31   29    30
   8  |    7    9   10    8    9    3    7    7   10    9    3 |    19   22   19   20   18   17   21   17   19   18    18
   9  |    9   10    8    9    9    5   10    4    8    7    3 |    21   33   21   25   15   20   32   20   17   24    23
  10  |    6    7    8    6   10    2    6    8    7    9    2 |    21   24   24   25   22   21   23   23   20   24    22
  11  |    7    8   14    6   12    3    7    9    7   10    3 |    21   26   25   24   21   22   25   24   22   21    22
  12E |    9   22    7   10   12    5   13   13   11   12    4 |    25   24   24   30   23   26   25   29   28   25    25
  13  |    7    8    9    9    5    3    7    7   10   10    3 |    22   21   18   28   17   22   21   22   21   23    21
  14  |    8    9   10    7    7    2    6   10    8   12    3 |    17   16   17   18   19   15   13   18   15   15    15
  15  |    7   11   10    8    6    3    9   10   11   17    3 |    37   38   37   40   37   36   38   35   39   37    36
  16E |   13   24    8   14   14    5    8   16   10   15    4 |    27   29   27   33   27   30   27   34   32   30    28
  17  |    8   12    8   14   16    5    8   12   10   18    4 |    19   24   18   24   18   19   23   21   20   17    19
  18E |   12   15   13   13   13    6   14   11   11   23    5 |   133  134  138  127  136  131  134  129  134  135   132
  19  |   11   18    6   13   13    5    9   12   11   22    4 |    19   24   17   23   16   17   20   20   19   17    16
  20  |    8   13   10   13   16    3    9   12   13   17    4 |    27   27   28   28   25   24   25   29   24   27    25
  21E |   14   10    8   13   24    5    8    9   11   12    4 |    29   33   30   37   32   29   29   34   33   35    31
  22  |   10    9   10   11   13    4    9   10   12   18    4 |    17   19   17   21   18   18   21   18   20   15    16
  23  |    8   19   10    9    7    5    7    7    7    9    3 |    14   16   18   20   12   14   12   15   17   16    14
  24  |   11    8    6    6    7    4    5    6    7   10    2 |    19   24   22   19   19   19   23   21   21   25    21
  25E |    8    9   10    7   11    4    7    7   11    7    3 |    28   29   32   28   29   27   28   29   27   27    28
  26E |   19   16   11   14   15    3    7    9   10    9    4 |    26   28   27   30   21   23   24   26   24   25    24
  27  |    8   11    9    6    6    2    7    6    6    9    2 |    20   23   20   20   21   19   23   19   21   18    20
  28E |    8   16    6   11   15    5   10   11    9   11    3 |    27   27   28   26   29   26   28   31   25   30    27
  29  |   11   16   10   11    9    5    9   11   12   17    4 |    27   24   21   24   22   21   24   23   24   23    22
  30  |    6    9    4    7    8    3    8    7    6    9    2 |    23   27   25   23   25   22   26   24   24   26    24
  31  |   13   12   11   13   14    3    9   13   11   16    4 |    23   28   22   23   25   20   25   23   20   19    21
  32  |    9    9   11    8    6    4    9   10   10   13    3 |    19   31   17   28   20   20   31   20   21   30    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    9   10   12    4    9   10   10   13      |T   28   31   29   30   28   27   30   29   29   29    28
 WRMS |    9   13    9    9   14    4    9    9    9   15      |NE  22   25   22   24   21   21   24   22   22   22    21
 MEDI |    8   11    9    9   12    4    8    9   10   11      |MD  23   27   24   26   22   22   25   24   24   25    23

Table 3.2010.3   GPS week: 2010   Day: 3   MJD: 58317.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   17   11    9    7   15    4    9    8    9    7    3 |    37   36   38   35   37   35   35   35   34   36    35
   2E |   17   10    7   15   15    7   11    8   11   10    4 |   106  106  103  112  104  106  106  107  109  106   106
   3  |    9    7    7    7   11    2    8    5    7    8    2 |    18   22   19   18   19   17   22   17   16   18    18
  X4E |    3  ---  ---  ---  ---   19  ---  ---  ---  ---    0 |    31  ---  ---  ---  ---   25  ---  ---  ---  ---    30
   5  |   11    9    9    8    9    4    9    9    9   17    3 |    28   27   27   27   29   26   31   27   26   22    26
   6E |   10   11   11   11   19    3    7    8    8    9    3 |    37   39   40   38   38   37   37   38   38   38    37
   7  |   11   12   11   11   10    2   10   11    9   15    4 |    28   30   30   24   28   25   29   23   25   22    25
   8  |    9    8    8    7    8    3    7    6    7    7    2 |    21   24   21   22   21   19   23   18   17   17    19
   9  |   10   12    9    7    9    4   10    4   10    8    3 |    21   34   22   27   18   22   34   23   21   23    24
  10  |    9    8    9    6   10    4    7    8    5   10    3 |    24   25   24   26   21   23   24   21   22   27    22
  11  |   10    8   13    6   11    4    7    9    5   12    3 |    23   27   26   25   22   23   26   23   22   21    23
  12E |   11   21    7   10   12    3   13   12   14   12    4 |    24   22   23   29   26   24   21   28   33   23    24
  13  |    8    6    7   13    9    4    6    6   10   10    3 |    21   19   21   32   15   22   21   21   20   24    20
  14  |    8    8   11    8    5    4    6    7    5   12    3 |    16   15   20   16   15   16   13   16   16   14    14
  15  |    7   11    8    8    5    4    9    9    7   13    3 |    48   52   50   49   50   47   50   50   50   50    49
  16E |   15   24    8   13   16    4    9   15   11   14    5 |    19   19   20   25   17   20   18   23   25   20    18
  17  |    7   11    6   12   12    3    7   11    8   18    3 |    20   24   19   24   21   20   25   23   22   15    20
  18E |   12   16   12    9   16    6   12   14   11   18    4 |   125  130  128  127  129  125  128  127  129  127   127
  19  |    8   16    8   13   13    5    8   11    9   27    4 |    20   24   23   26   20   22   23   23   23   20    20
  20  |    9   14   10   11   15    4    9   11    9   17    4 |    23   22   21   24   18   19   20   23   20   22    19
  21E |   12   10    8   12   18    7   13   10    8   13    4 |    38   37   37   44   37   39   38   40   37   42    38
  22  |   12   11   10    9   13    3    9    9   12   21    4 |    19   18   16   22   18   17   20   19   18   17    16
  23  |   10   20   12    8    6    5    8    6    7   10    3 |    16   14   19   21   13   16   14   14   16   15    14
  24  |   10    8    8    7    5    5    5    6    9   11    2 |    22   27   25   20   24   20   23   22   27   25    23
  25E |   10    9   10    6   15    4    7    7    8   10    3 |    35   35   37   36   31   34   36   35   39   31    34
  26E |   15   11   11    9   13    4    9   11    9    8    4 |    24   26   27   27   20   25   23   26   24   23    23
  27  |    6   10    6    6    7    3    7    5    5    9    2 |    21   24   22   21   22   20   24   19   19   17    20
  28E |   15   14    7   10   13    4   10    9    6   15    4 |    27   30   31   28   28   29   32   30   29   30    28
  29  |   13   18    9   11   10    3    9   11   10   16    4 |    30   23   21   26   24   23   24   24   22   22    22
  30  |    6   10    6    5    7    3    8    6    7    9    2 |    24   28   29   25   26   25   29   24   26   27    26
  31  |   12   11   12   12   11    4   11   12    8   15    4 |    29   34   29   27   26   26   32   25   26   24    26
  32  |    8   10   10    8    7    4   10    9    7   14    3 |    20   32   22   25   18   23   32   20   21   32    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   13    9   10   12    4    9    9    9   13      |T   31   33   31   33   30   30   32   31   31   30    30
 WRMS |   10   13    9    9   11    4    9    8    7   12      |NE  23   25   24   25   22   22   25   22   22   22    22
 MEDI |   10   11    9    9   11    4    9    9    8   12      |MD  24   27   24   26   22   23   25   23   24   23    23

Table 3.2010.4   GPS week: 2010   Day: 4   MJD: 58318.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   11   11    7    7   15    4    7    7    7    8    3 |    34   34   34   33   34   32   32   31   33   34    32
   2  |   13   10    6   12   18    6   11   11    9   11    4 |    66   66   66   70   64   67   64   68   68   69    66
   3  |    9    6    6    8   13    5    6    5    8    8    2 |    20   22   19   18   21   17   21   17   19   19    18
  X4E |    2  ---  ---  ---  ---   23  ---  ---  ---  ---    0 |    35  ---  ---  ---  ---   30  ---  ---  ---  ---    35
   5  |   11   10    8    9   12    3    8    8    9   15    3 |    37   36   34   38   38   34   36   35   33   33    35
   6E |   13    8   11   12   21    2    8    8    7   10    4 |    40   41   41   39   36   38   39   39   41   40    39
   7  |   11   11   10   12   13    4    8   11   10   17    4 |    33   34   31   30   34   29   33   30   29   33    30
   8  |    8    7    4    8    8    2    5    5    6   12    2 |    25   25   24   23   24   21   24   22   19   21    22
   9  |   10   11    9    8    9    4   10    5   11   10    3 |    21   33   22   26   19   21   33   21   17   23    23
  10  |    8    8    4    6   12    2    6    7    8    6    2 |    22   23   21   23   22   20   23   20   23   21    21
  11  |    8    7   11    6   11    2    5    9    7   10    3 |    23   27   27   25   23   23   26   23   21   23    23
  12E |   16   19    6    9   13    3   12   12   15   12    4 |    29   23   27   32   23   27   24   30   32   26    26
  13  |    5    7    7    8    6    3    8    9    8   10    2 |    21   22   20   25   17   18   21   22   18   20    20
  14  |   11    6   10    5    8    3    7    9    7   11    3 |    23   18   23   18   20   16   15   18   15   18    17
  15  |    9    9    8    6    7    3   12   10   11   15    3 |    50   48   48   47   47   48   49   49   46   51    48
  16E |   14   26    8   14   19    5    8   13   13   14    5 |    20   27   25   28   20   24   20   28   26   24    22
  17  |   11   11    9   13   14    3    7   13    8   17    4 |    20   24   19   22   20   19   23   22   20   14    19
  18  |   10   13   11    9   22    6   13    9    9   18    4 |    92   94   89   92   93   91   94   92   94   94    92
  19  |   11   15    7   14   15    4    8   13    8   22    4 |    22   22   20   23   17   19   20   21   20   18    18
  20  |   11   12    7   12   16    3    9   12   11   16    4 |    26   23   24   25   23   23   24   27   27   25    23
  21  |   16    9    6   10   20    8    9    8   10   10    4 |    83   83   85   89   81   85   83   85   82   86    84
  22  |   11    9    8   11   15    4    9    9   11   20    4 |    17   18   14   19   21   16   18   19   16   17    15
  23  |   10   21    9    9    9    5    8    7   10   11    3 |    20   15   17   20   13   14   12   14   14   18    14
  24  |   22    7    8    8   10    3    6    6    9   13    3 |    23   23   21   22   23   19   22   19   19   26    20
  25E |   12    9   10    7   16    4    6    8    9    6    3 |    33   33   35   33   30   32   33   32   33   33    32
  26E |   17   10   11   14   15    4   10    9   10    9    4 |    22   26   27   28   19   23   24   24   21   22    22
  27  |    7   10    7    6    9    2    8    4    7   11    2 |    24   26   25   24   25   22   26   23   21   19    23
  28E |   13   12    5   11    8    3   11   10    8   12    3 |    27   26   25   25   25   23   25   26   24   24    24
  29  |   10   17    8   12   11    3    9   11   11   15    4 |    29   23   22   26   24   21   23   21   21   23    22
  30  |    6    9    5    7   10    3    7    6    6    8    2 |    22   24   23   22   24   19   24   20   19   23    21
  31  |   14   12    9   13   12    4   10   12   12   15    4 |    29   33   27   26   26   25   30   24   23   23    25
  32  |   10   10    8    6    9    3    9   11    9   13    3 |    22   33   27   24   20   22   33   22   23   31    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   12    8   10   13    4    9    9    9   13      |T   31   32   31   32   29   29   31   30   29   30    29
 WRMS |   11   12    8    9   12    4    9    9    8   13      |NE  25   26   24   25   23   22   25   23   22   23    22
 MEDI |   11   10    8    9   12    3    8    9    9   12      |MD  24   26   25   25   23   23   24   23   23   23    23

Table 3.2010.5   GPS week: 2010   Day: 5   MJD: 58319.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    9    6    9   14    4    7    7    7    7    2 |    41   43   43   41   44   40   44   41   40   42    41
   2  |   11   10    6   12   21    4    9   13    9   11    4 |    54   52   52   57   53   53   51   56   53   53    53
   3  |    9    7    7    6   13    3    7    5    7    5    2 |    25   27   22   23   28   21   25   22   22   23    23
  X4E |    3  ---  ---  ---  ---   25  ---  ---  ---  ---    0 |    34  ---  ---  ---  ---   25  ---  ---  ---  ---    33
   5  |    9    9    8   10   13    3    7    8    9   14    3 |    33   32   31   31   31   30   33   31   32   29    31
   6  |   11   12    9   10   23    3    6    7    6    8    3 |    45   49   47   47   47   45   46   45   44   48    46
   7  |   13   12    9   12   14    5   10   12   11   16    4 |    31   33   30   29   34   28   33   32   28   30    30
   8  |    5    6    8   13   10    3    7    5    6   10    2 |    19   23   20   17   21   17   22   20   17   18    18
   9  |    9   11   10    7    9    5   10    6    6    9    3 |    22   34   21   23   20   22   34   23   21   24    24
  10  |    8    8    7    5   12    3    6    7    6    9    2 |    29   31   29   28   33   28   31   26   27   27    28
  11  |    7    6   13   11   13    2    6    9    6   10    3 |    22   25   27   25   23   23   27   24   21   20    23
  12E |    9   21    6   10   11    3   12   11   11   11    4 |    23   24   25   30   24   25   22   30   30   28    25
  13  |    6    7    7    9    9    3    9    7    6    7    2 |    22   17   18   22   15   18   18   20   19   20    18
  14  |   10    7   10    8    7    2    8    7    6   12    3 |    20   12   17   12   12   11   12   15   11   13    12
  15  |    7   11    6    7    8    3    9    8    9   11    3 |    32   27   30   30   28   29   28   32   29   33    29
  16E |   11   22    7   14   25    5   11   15   15   13    5 |    19   17   20   26   17   19   14   24   24   20    17
  17  |    8   12    9   13   15    2    8   13   11   18    4 |    19   23   17   22   22   18   25   22   20   12    18
  18  |   10   12   10   11   24    5    8    9    7   15    4 |   115  119  115  111  123  114  116  112  117  116   115
  19  |    9   17    7   14   15    4   10   14   10   23    4 |    17   24   21   28   20   21   23   26   23   20    20
  20  |    7   10    9   12   19    4    8   11   10   16    4 |    36   33   35   34   36   33   33   35   32   32    33
  21  |    8    9    6   14   27    4    7   11   10   10    4 |    31   30   31   35   34   32   30   32   34   33    30
  22  |   13    6   10   11   16    4    8   10   12   16    4 |    22   22   17   21   23   18   21   19   19   15    18
  23  |    9   19    9    7   12    4    7    8    7   10    3 |    17   13   15   18   15   15   12   17   15   14    14
  24  |    8    8    7    8   10    3    6    6    6    9    2 |    22   26   23   22   25   22   24   24   24   24    23
  25E |    9    9    9   11   19    4    7    5    7   10    3 |    36   34   34   35   33   34   34   34   34   34    33
  26E |   12   11   12   11   17    3   10    9   10    8    4 |    33   31   31   31   29   30   31   29   29   28    29
  27  |    8    8    7    8    9    3    8    5    6    7    2 |    20   20   21   16   21   17   21   17   18   14    18
  28E |   12   11    5   12    9    3    8    9    7    9    3 |    19   21   18   21   19   18   21   23   21   22    19
  29  |   11   20    7   14   12    4    8   12   10   12    4 |    27   23   20   29   23   23   23   24   25   20    23
  30  |    6    9    6    7   10    3   11    6    8    7    2 |    25   29   27   26   30   25   29   27   29   27    27
  31  |   10   13    9   12   13    4   11   12   14   15    4 |    23   29   23   23   27   23   30   24   23   22    23
  32  |    8    9   10    5    9    4    8    9    8   12    3 |    25   31   23   25   17   20   32   18   18   31    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    8   10   15    4    8    9    9   12      |T   29   30   29   30   29   28   30   29   29   28    28
 WRMS |    9   12    9   10   13    4    8    8    7   13      |NE  24   25   23   24   24   22   25   23   22   22    22
 MEDI |    9   10    8   11   13    3    8    9    8   10      |MD  25   27   23   26   25   23   28   24   24   24    23

Table 3.2010.6   GPS week: 2010   Day: 6   MJD: 58320.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9   15    6    8   17    3    8   11    6    7    3 |    45   48   46   45   52   45   46   45   44   47    45
   2  |   12   10    5   15   16    4   10   12    9   13    4 |    57   60   57   62   61   59   57   63   60   59    59
   3  |    6    8    6   10   13    4    6    6    8    6    2 |    27   30   27   26   33   26   30   25   28   28    27
  X4E |    3  ---  ---  ---  ---   27  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---   33  ---  ---  ---  ---    41
   5  |    9    9    7   13   14    3    9    8    9   16    3 |    44   40   40   38   41   39   41   38   41   35    39
   6  |   12    9    8    7   18    3    7    8    5    8    3 |    46   47   46   47   49   46   47   45   43   49    46
   7  |   11   11   11   11   12    3    8   11   10   14    4 |    41   43   43   38   43   37   44   39   37   39    40
   8  |    7    8    7   10   10    4    7    7    6    9    2 |    25   25   22   22   23   21   24   21   20   19    21
   9  |    4    9    9    6   11    5   10    6    7    7    3 |    28   37   24   30   25   27   38   26   25   28    28
  10  |    7    8    4    8   11    3    7    7    6   10    2 |    35   34   32   34   37   32   33   32   32   37    33
  11  |    9    9   11    7   13    2    6    9    6    8    3 |    27   32   32   28   24   28   31   27   27   26    27
  12E |    9   20    5   10   16    3   12   10    9   10    4 |    27   23   28   34   25   27   22   33   34   31    28
  13  |    8    7    9   10    8    2    7    6    6    8    2 |    22   21   19   25   17   19   20   22   19   22    20
  14  |    7    6   10    8    9    3    7   10    9    9    3 |    23   16   21   17   17   15   16   17   14   17    16
  15  |    8   12    7    8    9    3   10    9    9   13    3 |    44   47   46   45   44   44   45   45   41   47    44
  16E |    8   21    9   15   25    6    9   15   14   11    5 |    21   19   25   29   17   23   17   27   28   26    21
  17  |    9   10   10   14   14    3    8   15   10   17    4 |    25   23   21   24   23   20   26   24   21   15    21
  18  |    9    9    9    9   16    5    9    8    6   14    3 |   112  111  109  109  118  109  109  108  108  113   110
  19  |   11   14    6   18   13    4   10   16   12   21    4 |    23   25   23   30   19   24   25   27   23   21    22
  20  |   11   13    8   14   17    5   10   11    9   16    4 |    40   37   37   42   39   37   33   42   37   41    37
  21  |   10   12    6   15   28    5   14   14   10    9    4 |    39   36   37   43   41   39   42   35   39   39    37
  22  |   10   10   10   11   15    3    9   12    9   15    3 |    30   29   24   27   31   25   28   26   26   22    25
  23  |    5   19    9    7    9    4    7    8    8    9    3 |    17   16   16   18   13   13   13   15   15   13    13
  24  |    8    7    8    8    9    4    6    8    5    7    2 |    27   31   27   25   30   26   28   26   28   29    27
  25E |   11    7    9    7   23    2    6    7    9    8    3 |    49   46   50   50   46   49   49   47   50   49    48
  26E |   12   11   11    9   20    5    9   10   10    9    4 |    40   42   40   39   41   36   39   36   37   37    38
  27  |    8    9    7    6   11    3    8    7    7    8    2 |    23   23   22   21   23   20   22   21   20   18    21
  28E |   15   13    4   12   11    3    8    9    9   10    3 |    26   27   28   28   28   25   26   28   28   28    26
  29  |   10   17    8   15   15    3   10   13   10   11    4 |    33   30   28   31   34   28   28   27   28   28    28
  30  |    9   10    6    6   10    3    7    6    6    9    2 |    34   34   34   31   38   31   36   32   32   35    33
  31  |   10   12   10   17   10    5   10   11   11   14    4 |    34   40   35   29   35   30   36   29   28   28    31
  32  |    6   11    9    7    9    4    9   10   11   11    3 |    26   37   28   28   24   26   36   26   26   34    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    8   11   15    4    9   10    9   11      |T   35   35   34   35   35   33   35   34   33   34    33
 WRMS |    9   12    8    9   13    4    9    9    8   11      |NE  29   30   28   29   29   27   30   27   27   27    27
 MEDI |    9   10    8   10   13    3    8    9    9   10      |MD  30   34   28   30   33   28   33   28   28   29    28



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components. See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.2010   GPS week: 2010   MJD: 58314.0-58320.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |U   13    16    43 |U    8    12    27 |U   12    11    31 |
emr | emr 2974 |U   23    17    57 |U   11    17    36 |    12    16    38 |
esa | esa 2976 |    17    14    43 |U    8    12    23 |    12    12    30 |
gfz | gfz 2973 |U   15    15    41 |U    8    12    28 |U   13    12    35 |
grg | grg 2976 |U   14    16    41 |U    9    17    35 |    13    12    36 |
igr | igr 2955 |    11    12    31 |     8    11    22 |    11    11    30 |
igs | igs 2972 |    16    14    43 |     8    12    24 |    12    12    31 |
jpl | jpl 2976 |    21    20    63 |     8    16    34 |U   11    17    35 |
mit | mit 2976 |    19    21    65 |U    9    13    30 |U   14    13    33 |



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 5.2010.0   GPS week: 2010   Day: 0   MJD: 58314.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10    12    23 |     8    12    27 |    10     8    26 |
emr | emr 2972 |    21    14    39 |    11    15    39 |    13    14    37 |
esa | esa 2976 |    13     8    24 |     6    12    23 |    11     7    23 |
gfz | gfz 2973 |    10    10    23 |     8    12    30 |    10     8    28 |
grg | grg 2976 |    12    12    25 |     9    23    34 |    12     8    32 |
igr | igr 2954 |    10     9    22 |     6    11    24 |     9     8    25 |
igs | igs 2975 |    11     9    25 |     6    12    25 |    10     7    25 |
jpl | jpl 2976 |    16    12    42 |     8    15    37 |    11    12    28 |
mit | mit 2976 |     9     9    24 |     8    14    28 |    11     9    26 |

Table 5.2010.1   GPS week: 2010   Day: 1   MJD: 58315.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    12    18    37 |     9    12    29 |    11    10    32 |
emr | emr 2972 |    24    17    68 |    11    18    36 |    10    18    31 |
esa | esa 2976 |    13    16    46 |     8    12    22 |    12    11    29 |
gfz | gfz 2972 |    12    16    44 |     8    13    27 |    15    13    45 |
grg | grg 2976 |    12    19    43 |     9    20    29 |    15    13    50 |
igr | igr 2957 |    11    16    44 |     8    12    22 |    11    10    30 |
igs | igs 2972 |    12    16    49 |     8    13    24 |    11    12    31 |
jpl | jpl 2976 |    17    23    65 |     8    14    38 |    11    17    38 |
mit | mit 2976 |    11    16    44 |    10    14    39 |    15    10    33 |

Table 5.2010.2   GPS week: 2010   Day: 2   MJD: 58316.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    28    30   118 |     7    11    27 |    13    12    32 |
emr | emr 2974 |    55    35   126 |    11    17    37 |    11    17    40 |
esa | esa 2976 |    43    26    96 |     7    10    24 |    12    12    26 |
gfz | gfz 2972 |    34    29    98 |     8    10    29 |    14    11    29 |
grg | grg 2976 |    25    29   111 |     8    17    33 |    12    12    33 |
igr | igr 2880 |    11    13    29 |     7    11    24 |    12    11    29 |
igs | igs 2954 |    42    27    97 |     7    11    26 |    12    12    28 |
jpl | jpl 2976 |    48    36   138 |     6    14    35 |    11    16    31 |
mit | mit 2976 |    60    68   259 |     9    10    27 |    12    12    26 |

Table 5.2010.3   GPS week: 2010   Day: 3   MJD: 58317.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10    10    32 |     8    12    28 |    14    14    31 |
emr | emr 2976 |    20    15    45 |    11    18    37 |    15    20    48 |
esa | esa 2976 |    13     9    38 |     9    13    24 |    14    16    29 |
gfz | gfz 2971 |    12    10    34 |    10    13    33 |    16    17    33 |
grg | grg 2976 |    12    12    31 |    11    17    41 |    14    15    30 |
igr | igr 2969 |    12    10    35 |     9    12    24 |    14    15    31 |
igs | igs 2975 |    12    10    34 |     9    13    28 |    14    16    29 |
jpl | jpl 2976 |    18    17    50 |    11    17    42 |    14    19    29 |
mit | mit 2976 |    12    15    43 |    10    15    35 |    15    17    32 |

Table 5.2010.4   GPS week: 2010   Day: 4   MJD: 58318.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    11    15    26 |     7    12    26 |    12    11    34 |
emr | emr 2976 |    16    17    41 |    10    17    30 |    13    17    45 |
esa | esa 2976 |    14    14    31 |     8    13    20 |    14    17    53 |
gfz | gfz 2973 |    13    14    25 |     8    12    23 |    15    18    59 |
grg | grg 2976 |    13    16    21 |     7    15    29 |    13    16    49 |
igr | igr 2976 |    13    15    25 |     7    12    19 |    12    14    44 |
igs | igs 2976 |    12    14    28 |     7    13    19 |    12    17    50 |
jpl | jpl 2976 |    16    17    45 |     7    19    26 |    11    20    51 |
mit | mit 2976 |    11    15    27 |     8    12    21 |    14    16    50 |

Table 5.2010.5   GPS week: 2010   Day: 5   MJD: 58319.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10    14    33 |    11    13    29 |    11    11    33 |
emr | emr 2976 |    14    14    39 |    11    22    40 |    10    17    28 |
esa | esa 2976 |    11    14    39 |    11    14    27 |    10    13    27 |
gfz | gfz 2976 |    10    13    35 |    11    15    30 |    12    11    31 |
grg | grg 2976 |    11    15    28 |    13    16    49 |    11    12    31 |
igr | igr 2976 |    10    14    36 |    10    14    27 |    11    11    28 |
igs | igs 2976 |    10    13    36 |    11    15    28 |    11    13    28 |
jpl | jpl 2976 |    16    18    50 |     9    20    35 |    10    19    31 |
mit | mit 2976 |    11    13    33 |    13    13    27 |    11    11    29 |

Table 5.2010.6   GPS week: 2010   Day: 6   MJD: 58320.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    11    10    30 |     9    11    23 |    12     9    27 |
emr | emr 2976 |    11    11    42 |    10    11    30 |     9    11    38 |
esa | esa 2976 |    13    10    30 |     6    10    19 |    11     9    26 |
gfz | gfz 2976 |    13    10    27 |     6    10    22 |    12    10    25 |
grg | grg 2976 |    14    13    23 |     8    10    33 |    12     9    30 |
igr | igr 2976 |    12    11    28 |     6     8    18 |    10     7    24 |
igs | igs 2976 |    12    11    30 |     6     9    20 |    11     9    26 |
jpl | jpl 2976 |    15    14    50 |     7    13    26 |    11    15    35 |
mit | mit 2976 |    16    11    27 |     8    16    36 |    18    13    35 |


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 6.2010   GPS week: 2010   MJD: 58314.500-58320.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -18     -17      61      96      5 |      28     30
            |       9      18      82      68      4 |       2
emr   uuuuu |      21      12     -57      36      6 |      34     37
            |      13      18      58      59     16 |       4
esa   uuuuu |       7       9      32      23      5 |      25     27
            |      10      10      39      75      7 |       2
gfz   uuuuu |      -8      21      69    -211      3 |      34     36
            |      17      11     101      89      4 |       3
grg   uuuuu |      -1      -4     -21      81     -2 |       5     11
            |      11      18      36      59      2 |       1
igr   xxxxx |      -6       9      43     -13     -7 |      14     18
            |      10      14      33      37      5 |       2
irf   xxxxx |      -4     -20     -19     -19     -6 |       5     11
            |       9       7      30      10      3 |       1
jpl   uuuuu |       2       4      55     144      4 |      26     28
            |      13      14      34      36      5 |       1
mit   uuuuu |       8      -2     -57     -80     -3 |      28     30
            |      10      14      62      26      3 |       2
ngs   uuuuu |     -23     -15     -12    -117     -4 |      27     29
            |      23      37     108      73      5 |       2
sio   uuuux |      23      -8    -145      60      4 |      53     54
            |      14      17     100      54      5 |       2


Table 7.2010.0   GPS week: 2010   Day: 0   MJD: 58314.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -28     -34     122      58      4 |      25     27
emr   uuuuu |      16      -2     -35      88     20 |      28     29
esa   uuuuu |      -7      18      86     -43     -3 |      22     24
gfz   uuuuu |      -9      27       8     -76      8 |      29     31
grg   uuuuu |       9     -27     -50      18     -4 |       6     10
igr   xxxxx |       0     -19      12      33     -2 |      15     18
irf   xxxxx |       2      -9     -13     -15     -2 |       4     11
jpl   uuuuu |      -9      24      39     107      4 |      26     29
mit   uuuuu |      -7       8     -17     -77      2 |      25     27
ngs   uuuuu |      22     -35      13     -43      4 |      23     26
sio   uuuux |      15       5    -275      13      4 |      49     50

Table 7.2010.1   GPS week: 2010   Day: 1   MJD: 58315.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -22     -29     108     102      6 |      26     29
emr   uuuuu |      25      33     -69      52     13 |      30     33
esa   uuuuu |      25      17     -19     -89      4 |      23     26
gfz   uuuuu |     -39      38     112    -332      1 |      32     35
grg   uuuuu |      -7     -22      36      68     -2 |       7     11
igr   xxxxx |     -16      16      72      22    -15 |      16     19
irf   xxxxx |      -8     -25      22     -11     -9 |       6     13
jpl   uuuuu |       9      -1       8     198     -1 |      25     28
mit   uuuuu |       3     -14      31     -39     -6 |      27     30
ngs   uuuuu |     -21      -6       7     -51     -2 |      26     29
sio   uuuux |      27     -18    -243     134      0 |      51     52

Table 7.2010.2   GPS week: 2010   Day: 2   MJD: 58316.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -17     -38       3      10      8 |      28     31
emr   uuuuu |      42      36    -155     100     26 |      32     35
esa   uuuuu |       2       3       6      23      1 |      25     27
gfz   uuuuu |     -17      10     181    -289      6 |      35     36
grg   uuuuu |      16       1      19     118     -5 |       7     11
igr   xxxxx |     -19       9      29     -28     -8 |      16     19
irf   xxxxx |      -1     -19       3      -5     -5 |       6     12
jpl   uuuuu |      11     -11      85     150      5 |      26     28
mit   uuuuu |      19     -23     -37     -75      2 |      28     31
ngs   uuuuu |     -51      43     -47     -76     -2 |      28     30
sio   uuuux |      12     -11    -164     106      7 |      53     54

Table 7.2010.3   GPS week: 2010   Day: 3   MJD: 58317.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -25     -23     186      45      1 |      29     31
emr   uuuuu |      25       8     -87      41      3 |      35     37
esa   uuuuu |       7       1      12      62     14 |      25     27
gfz   uuuuu |     -11       8     203    -260      4 |      36     37
grg   uuuuu |      -8      12     -19     184     -1 |       5     12
igr   xxxxx |     -14      16     103     -30      1 |      15     19
irf   xxxxx |     -22     -28      -6     -19     -9 |       6     12
jpl   uuuuu |      12      -1      63     177      0 |      26     29
mit   uuuuu |      19     -10     -37    -120     -6 |      29     31
ngs   uuuuu |     -25      21    -223    -129     -8 |      29     30
sio   uuuux |      16     -28    -123      95      7 |      53     54

Table 7.2010.4   GPS week: 2010   Day: 4   MJD: 58318.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -2      -5       7     193      4 |      30     31
emr   uuuuu |      19      -9     -40      14      4 |      37     39
esa   uuuuu |      -1       0      79     131     13 |      26     28
gfz   uuuuu |      10      16      37    -190      3 |      36     37
grg   uuuuu |     -17      11     -25      55     -2 |       4     11
igr   xxxxx |       3      21      30     -77     -4 |      14     18
irf   xxxxx |      -8     -20     -30     -18     -8 |       5     12
jpl   uuuuu |       5      -9     102     132      1 |      25     28
mit   uuuuu |      -1       5     -84     -79     -5 |      29     31
ngs   uuuuu |     -43     -19     -17    -249     -4 |      28     30
sio   uuuux |      42      23    -175     -14     10 |      54     55

Table 7.2010.5   GPS week: 2010   Day: 5   MJD: 58319.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -9      10     -50      85      0 |      29     31
emr   uuuuu |      23      -5      38      37    -11 |      38     40
esa   uuuuu |      14      23      24      77     -1 |      27     29
gfz   uuuuu |       8      18     -78    -189     -5 |      37     38
grg   uuuuu |       3      16     -53     101      0 |       4     10
igr   xxxxx |       5      18      14     -13    -10 |      13     17
irf   xxxxx |       5     -14     -40     -31     -6 |       3     10
jpl   uuuuu |     -24       5      67     147     14 |      25     27
mit   uuuuu |      13      15     -92    -103     -4 |      28     29
ngs   uuuuu |     -17     -63     119    -172     -7 |      28     30
sio   uuuux |       7     -18     -30      30     -5 |      55     56

Table 7.2010.6   GPS week: 2010   Day: 6   MJD: 58320.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -21      -2      55     176     11 |      30     32
emr   uuuuu |       0      22     -50     -80    -18 |      39     41
esa   uuuuu |       6       4      40      -2      7 |      27     29
gfz   uuuuu |       0      27      21    -141      4 |      37     38
grg   uuuuu |      -1     -19     -52      19      0 |       4     10
igr   xxxxx |       0       2      39       3    -11 |      11     16
irf   xxxxx |       1     -23     -69     -33     -4 |       3     10
jpl   uuuuu |       7      20      21      96      5 |      28     30
mit   uuuuu |       9       4    -163     -66     -3 |      28     29
ngs   uuuuu |     -25     -43      65     -99    -12 |      28     29
sio   uuuux |      39     -10      -7      57      7 |      55     56


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