[IGSREPORT-23107] Wk 1814 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Thu Oct 30 08:52:12 PDT 2014


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1814   (Oct 12, 2014 - Oct 18, 2014)

Contacts: igs.acc at noaa.gov


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

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

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

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

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

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

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


SOFTWARE:
---------

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

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

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

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

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


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

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

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

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



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

igs1814[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1814[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1814[0-6].cls  IGS GPS clock combination summary report.
igs18147.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18147.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   | 32 32
                0  |  EMR   | 10
                0  |  ESA   | 32 32
                0  |  GFZ   | 1 2 6 30 1 6 30 IISC IISC
                0  |  GRG   | 10 BOR1 SOFI BOR1 GRAZ SOFI
                0  |  JPL   | 32
                0  |  MIT   | 4 11 21 25 4 10 11 21 25 27 FLIN MDVJ MONP
                1  |  COD   | 32 32
                1  |  EMR   | 10
                1  |  ESA   | 32 32
                1  |  GFZ   | 1 6 30 32 1 6 30 32 IISC RESO THU3 CUSV IISC RESO
                1  |  GFZ   | THU3
                1  |  GRG   | 10 TLSE KOUR TLSE
                1  |  JPL   | 8 18 32
                1  |  MIT   | 26 10 18 26 BAKO TLSE BAKO KOUR MDVJ TLSE
                2  |  COD   | 3 3 32 HOB2 HOB2
                2  |  EMR   | 10
                2  |  ESA   | 3 32 3 32 HOB2 KOUR NRIL HOB2 KOUR NRIL TIXI
                2  |  GFZ   | 1 2 6 30 1 6 30 32 FAIR MAC1 SCOR FAIR MAC1 SCOR
                2  |  GRG   | 10 DAV1 GRAZ HOB2 HYDE DAV1 GRAZ HOB2 HYDE KELY
                2  |  JPL   | 10 18 32 PIMO
                2  |  MIT   | 3 32 3 10 32 KOUR BAKO KOUR MDVJ
                3  |  COD   | 32 3 32 TLSE
                3  |  EMR   | 10 TLSE
                3  |  ESA   | 32 3 32 UNSA
                3  |  GFZ   | 1 3 6 30 32 1 6 13 30 32 CAS1 CAS1 IRKJ NYA1
                3  |  GRG   | 3 10 13 GRAZ GRAZ ONSA
                3  |  MIT   | 3 3 10 11 28 32
                4  |  COD   | 3 KARR TRO1 GUAM KARR TRO1
                4  |  EMR   | 10 32 10 32
                4  |  ESA   | 3 3 TRO1 UNSA
                4  |  GFZ   | 1 6 30 1 6 30 MCM4 NYA1 MCM4 NYA1
                4  |  GRG   | 3 32 3 10 32 GRAZ KARR SOFI USNO GRAZ KARR SOFI USNO
                4  |  JPL   | 10 32 HOFN
                4  |  MIT   | 1 2 3 4 6 8 12 18 19 22 23 27 30 32 1 2 3 4 6 8 10
                4  |  MIT   | 12 18 19 22 23 27 30 32 KOUR ALGO HNPT KOUR
                5  |  COD   | 10 KARR HOB2 KARR
                5  |  EMR   | 32 32 HOB2
                5  |  ESA   | 3 10 CHUR PIMO CHUR HOB2 PIMO
                5  |  GFZ   | 1 2 6 30 32 1 6 10 30 32 REUN BAKE REUN
                5  |  GRG   | 32 32 GRAZ MOBS REUN GRAZ MAL2 MOBS
                5  |  JPL   | 32
                5  |  MIT   | 3 32 32 TLSE KOUR MDVJ TLSE
                6  |  COD   | 32 3 10 32
                6  |  ESA   | 3 32 3 10 32
                6  |  GFZ   | 1 2 6 9 30 32 1 2 6 10 30 32 AREQ NRIL ALRT AREQ
                6  |  GFZ   | MAW1 NRIL
                6  |  GRG   | 3 3 GOPE GRAZ GOPE GRAZ
                6  |  JPL   | 32
                6  |  MIT   | 3 21 3 21

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

 6. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                1  |  COD   |   3
                2  |  GRG   |   3
                3  |  GRG   |   3
                4  |  GRG   |   3
                5  |  GRG   |   3
                6  |  GRG   |   3

 7. 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.

 8. 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 |    -.8     .0    -.2     -52      7      2     .05
       EMR  |   0 |   -1.0    5.0    2.6     -12     26    -14    -.18
       ESA  |   0 |     .1     .5   -1.9       0      8     64    -.21
       GFZ  |   0 |    -.2     .6   -2.2      -2    -69     18     .19
       GRG  |   0 |    5.1   13.4   -1.6     -18     36    -20     .34
       JPL  |   0 |    -.2    9.2   14.5     -63     15     35    -.55
       MIT  |   0 |    -.6    7.3   -6.6      -5      9    -27     .01
       NGS  |   0 |     .5    1.5    3.1      16    -10     10     .72
       SIO  |   0 |    1.5    6.1   -5.9      -7     16      6     .13

       COD  |   1 |     .2     .0    -.2     -55     -7    -22    -.03
       EMR  |   1 |    1.5    6.9    1.3     -17     25     -1    -.17
       ESA  |   1 |     .0     .4   -1.9       5     11     58    -.09
       GFZ  |   1 |     .5     .6   -1.3       2    -69     28     .06
       GRG  |   1 |    4.3     .7    -.6     -23     63    -12     .40
       JPL  |   1 |    1.0    9.5    9.7     -81     13     -6    -.08
       MIT  |   1 |   -4.0    5.9   -5.1      -2     10    -26     .10
       NGS  |   1 |    8.3    2.3    3.9      21    -41     56     .67
       SIO  |   1 |   -1.9     .7  -10.6      -2      3     21    -.03

       COD  |   2 |     .0     .0    -.4     -54     10     12    -.02
       EMR  |   2 |    -.9    8.5    2.5     -16     24      5     .01
       ESA  |   2 |    -.2    -.6   -1.6      33    -42     70     .08
       GFZ  |   2 |     .0     .3   -1.8       0    -12     24     .13
       GRG  |   2 |    3.1   14.7    6.9     -24     61    -13     .23
       JPL  |   2 |   -3.3    1.2    1.7     -73     15    -20    -.16
       MIT  |   2 |    -.2    7.1   -3.2       2      5    -27     .09
       NGS  |   2 |   -7.6   -4.3   -3.8      12     44    -53     .59
       SIO  |   2 |    1.2     .8  -17.1     -19      1      8    -.04

       COD  |   3 |    -.5     .2    -.5     -42      0     17     .17
       EMR  |   3 |    -.3     .3    -.8     -26     25     -5     .20
       ESA  |   3 |     .1     .2   -2.1     -10    -24     50     .07
       GFZ  |   3 |     .2     .7   -2.0     -14    -83     14     .03
       GRG  |   3 |    1.7    4.1     .8     -30     57      4     .67
       JPL  |   3 |    -.7    1.6    5.2     -82    -18    -18     .25
       MIT  |   3 |   -2.1    5.1   -5.5      -4      9    -34     .19
       NGS  |   3 |     .8   -8.9    4.8     -14     -7    -12     .79
       SIO  |   3 |    4.9    -.2  -17.3     -14    -14     24     .15

       COD  |   4 |    -.6     .1    -.2     -29      5      3     .29
       EMR  |   4 |    3.9    6.8    6.6     -28     27     -2    -.01
       ESA  |   4 |     .5     .5   -2.2       5    -12     57     .17
       GFZ  |   4 |    -.1     .5   -2.1      -3    -81     22     .31
       GRG  |   4 |    5.2    7.5   -6.0     -25     33      4     .65
       JPL  |   4 |    6.6    7.1   10.1     -69     14      9     .08
       MIT  |   4 |    -.1    2.4    -.6      -7      5    -26     .29
       NGS  |   4 |   -3.2   -4.1    3.3      -4      9    -29     .72
       SIO  |   4 |    2.6    1.6  -11.9      -3      1      4     .21

       COD  |   5 |    -.5    -.9    -.8     -56      3     -7     .18
       EMR  |   5 |    1.5    3.1   -1.3     -17     30    -13     .04
       ESA  |   5 |     .0    -.2   -2.1      -4     -9     38     .03
       GFZ  |   5 |    -.7     .4   -2.4     -15    -67     14     .30
       GRG  |   5 |    4.0    7.7    2.9     -37     42      7     .40
       JPL  |   5 |    8.4    3.4    8.9     -77    -56     33     .18
       MIT  |   5 |   -1.9    4.5   -3.9      -1      7    -25     .30
       NGS  |   5 |    -.7   -8.0   -9.4      26     29    -28     .85
       SIO  |   5 |    1.4     .1  -14.4      -1      2      1     .28

       COD  |   6 |   -1.6    -.5   -1.4     -53     13     14     .24
       EMR  |   6 |    5.0    2.9   -1.2     -11     26     -6     .01
       ESA  |   6 |     .7     .0   -1.9       8     -9     52     .12
       GFZ  |   6 |    -.4     .6   -2.2     -16    -83     -6     .33
       GRG  |   6 |    3.1   11.9   -1.3     -36     32    -30     .63
       JPL  |   6 |    1.8   10.8    6.8     -90      2     64     .19
       MIT  |   6 |   -2.1    5.7   -3.7       1      9    -32     .30
       NGS  |   6 |   -3.0   -4.6    2.0      -2     11    -32     .63
       SIO  |   6 |   -1.0    -.1  -12.4     -10     17      3     .39


 9. 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.

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


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1814.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1814.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 2.1814.[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 3.1814.[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 5.1814.0-6). 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 1814 summary.                       (Oct 12, 2014 - Oct 18, 2014)

Table 1.1814.a   GPS week: 1814   MJD: 56942.000-56948.000

         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  248|    1     0     0    22     9    13   .11   10   10 |    -692    -417     15    107
        |    0     0     1    16    12     8   .02           |     824    1262
emr   80|    0     0     2    -4   -18    27   .30   13   13 |    1681    -249     17    136
        |    1     1     1    11    12    13   .03           |    1281     998
esa  150|    0     0     2    -4    -9    -6  -.29   12   12 |    -995    -311     14    156
        |    0     0     1    15    14    14   .02           |     198    1751
gfz  199|    0     1     4     9   -33     7  -.07   15   14 |     195    -299     16    155
        |    1     0     1    15     8    14   .03           |     176     538
grg  173|    0     0     2    -4    16   -32   .27   16   15 |      88    -146     18    133
        |    0     0     2    10    13    21   .04           |     225     405
igr  n/a|    0     0     1     4     1    -1  -.18    6    5 |    2262    -430     16    103
        |    0     0     1     9    15    10   .02           |    1221     914
jpl   80|    0     0     1   -42    -3   -11   .12   13   12 |    1471    -224     17    126
        |    1     1     0    19    15    18   .02           |    1388    1060
mit  350|    0    -1    -3   -24   -23   -13  -.10   15   12 |      36       8     25    216
        |    0     0     1    22    24    11   .03           |    1001    2490
ngs  228|    0     0    -4    30    66     1  -.01   13   11 |    -423   -1214   1394   2969
        |    1     1     3    48    43    23   .05           |     475    1340
sio  476|    0     0    -4    -3    -9     0  -.43   14   13 |     ---     ---    ---    ---
        |    0     0     1    18    31    34   .04           |     ---     ---


Table 1.1814.b   GPS week : 1814   MJD: 56942.000-56948.000   

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

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



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 2.1814.0   GPS week: 1814   Day: 0   MJD: 56942.000                            

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  249|    2    -1     0    35    13     7   .09    9    9 |    -828     442     15    101
emr   80|   -1     0     2    10    -4    28   .26   12   12 |    2319   -1489     14    136
esa  150|    0     0     1    11   -32    -9  -.28   12   12 |    -864   -2138     12    163
gfz  201|   -2     1     4    -4   -34    21  -.02   14   13 |     343    -160     14    152
grg  174|    0     0     1     5    39   -57   .24   16   15 |     -77     388     16    121
igr  n/a|    0     0     0     4    -6   -13  -.16    6    5 |    3265   -1316     15     94
jpl   80|    0    -2     2   -14    -5    -4   .12   12   12 |    2124   -1255     16    132
mit  350|    0     0    -4   -21   -40     3  -.11   16   12 |    -518    3718     27    227
ngs  229|    1     1    -2   -56    87    22  -.02   13   11 |    -550   -2939   1485   3038
sio  473|   -1     1    -3     2    -1   -19  -.44   15   11 |     ---     ---    ---    ---

Table 2.1814.1   GPS week: 1814   Day: 1   MJD: 56943.000                            

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  248|    2    -1     0     0     4     4   .08   11   11 |     489   -2065     14    108
emr   80|   -2     1     3    -3   -20    40   .28   13   13 |    1152    -460     14    125
esa  150|    0     0     3    -9   -12   -15  -.27   12   12 |   -1202    1439     11    153
gfz  203|    0     1     6     1   -37    13  -.10   15   14 |    -109     -37     14    159
grg  172|    0     0     0     2    26   -30   .26   15   14 |      10      59     15    130
igr  n/a|    0     0     2   -10    12     0  -.21    6    6 |    2194    -949     17     95
jpl   80|   -1     0     1   -61   -16    -1   .10   13   12 |    1150    -750     17    137
mit  350|    0    -2    -3    -2   -33    -4  -.07   15   13 |    1681   -3216     29    241
ngs  230|    3     2    -4    67   112   -24  -.04   13   12 |     329   -1516   1121   2815
sio  477|    0     0    -4    18   -19    33  -.40   15   15 |     ---     ---    ---    ---

Table 2.1814.2   GPS week: 1814   Day: 2   MJD: 56944.000                            

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  249|    2    -1    -1    18     8     8   .12   10    9 |   -1958    1394     14    109
emr   80|   -1     3     1     0   -24    21   .30   14   14 |     755   -1636     15    142
esa  150|    1     0     2   -19     0    10  -.28   12   12 |   -1252     919     11    167
gfz  196|    0     0     5     9   -42   -22  -.04   15   14 |      66    -559     17    163
grg  172|    0     0     5   -11    22   -22   .30   18   16 |     163    -526     19    129
igr  n/a|    0     0     2    -4    -5    16  -.17    6    5 |    1318   -1656     17    105
jpl   80|    0     0     1   -56     4   -17   .10   13   12 |     420   -1576     17    143
mit  350|    1     0    -4   -13    -9   -10  -.06   16   14 |   -1020    1736     21    200
ngs  228|    0     0    -4    71    29   -31  -.01   13   11 |    -155   -2469   1459   2772
sio  475|    0     0    -4   -17     7    47  -.43   15   13 |     ---     ---    ---    ---

Table 2.1814.3   GPS week: 1814   Day: 3   MJD: 56945.000                            

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  247|    1     0    -1    18     6    18   .10    9    9 |    -405   -1330     12    107
emr   80|    0     0     0     0   -13    16   .34   13   13 |    -234     856     13    142
esa  150|    0     0     2    -1    12    -8  -.29   12   13 |   -1009     147     10    156
gfz  202|    2     1     4    29   -28     7  -.08   15   13 |     182   -1224     14    157
grg  174|    1     1     6    -2     6   -46   .34   17   16 |     131    -646     16    133
igr  n/a|    0     0     0    17    31   -13  -.17    6    6 |     297     622     16    107
jpl   80|   -2     1     0   -59    26   -41   .10   13   12 |    -678    1151     17    131
mit  350|    0    -1    -3   -26   -42   -26  -.09   15   12 |     275   -2341     21    214
ngs  230|    0    -1     0    22    56     2  -.05   12   11 |   -1190    1179   1206   3045
sio  475|    0     0    -6   -10   -56    28  -.42   14   14 |     ---     ---    ---    ---

Table 2.1814.4   GPS week: 1814   Day: 4   MJD: 56946.000                            

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  249|    0     0     0    21   -13     7   .13    9    9 |   -1393     580     20    106
emr   80|    0     1     3   -12   -42    29   .32   13   13 |    1397     732     40    138
esa  150|    0     0     2   -10   -16    15  -.32   12   13 |    -950    1378     35    161
gfz  205|    2     2     3     8   -21    14  -.09   15   14 |     181     377     30    159
grg  178|    1     0    -1   -19     8   -36   .24   16   15 |    -265     288     34    159
igr  n/a|    0     0     1     8   -14     0  -.21    6    5 |    1802     671     17    102
jpl   80|   -1     0     1   -37    -9   -11   .13   12   12 |    1119    1029     26    117
mit  350|    0    -1    -1   -30    15    -9  -.12   15   11 |    -982    1599     37    242
ngs  231|    0     0    -4    60    65    14  -.02   13   12 |    -588   -1231   1484   3124
sio  489|    0     0    -7    -7    24   -35  -.39   15   14 |     ---     ---    ---    ---

Table 2.1814.5   GPS week: 1814   Day: 5   MJD: 56947.000                            

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  250|    1     0     2    11    23    26   .15   12   12 |       3   -1409     16    109
emr   80|    0     0     1   -24   -14     7   .31   12   12 |    3110     219     13    134
esa  150|    0     0     3   -22    -3   -24  -.30   12   13 |    -666   -2956     10    145
gfz  200|    1     1     2    -8   -27     9  -.10   14   13 |     399     120     14    167
grg  173|    0     0     3     7    11     8   .24   17   17 |     438    -173     15    145
igr  n/a|    0     0     0     1     2     0  -.18    6    6 |    3570     -70     16    118
jpl   80|    0    -1     1   -48   -17   -20   .16   13   12 |    3111     110     16    114
mit  350|    0    -2    -3    -8   -48   -20  -.11   14   11 |     921   -1412     20    203
ngs  228|    0     0   -11    61   118    30   .09   13   11 |    -197    -775   1707   3351
sio  475|    0     1    -3    19   -40   -22  -.47   13   13 |     ---     ---    ---    ---

Table 2.1814.6   GPS week: 1814   Day: 6   MJD: 56948.000                            

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  250|    0     0     1    52    21    19   .12   10    9 |    -752    -537     16    110
emr   80|    0    -1     1     0   -11    48   .29   13   13 |    3268      30     14    138
esa  150|    0     1     0    19   -11   -14  -.27   13   13 |   -1024    -969     11    147
gfz  186|    0     2     2    33   -43     7  -.05   16   15 |     309    -611     14    129
grg  173|    0     0     4   -13     2   -44   .26   16   15 |     216    -418     15    117
igr  n/a|    0     0     0    10    -7     4  -.16    5    5 |    3389    -317     17    100
jpl   80|    0    -2     1   -16    -3    19   .10   12   12 |    3051    -279     16    109
mit  350|    0    -1    -2   -70    -3   -25  -.11   15   12 |     -99     -22     20    187
ngs  224|    0     0    -2   -10    -2     0  -.01   11    9 |    -614    -753   1298   2643
sio  468|    0     0    -5   -30    23   -30  -.48   14   12 |     ---     ---    ---    ---

       
       
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 3.1814.0   GPS week: 1814   Day: 0   MJD: 56942.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7    8   13   11   10    4    8    8   12    9    3 |    31   35   27   31   35   26   33   29   29   29    30
   2  |   11   14   16   19   12    6   10   39   15   19    6 |    34   35   30   37   34   31   31   43   36   29    29
  X3E |   23   46   26   26  ---   22  ---   20   29  ---   13 |   105  101  101   94  ---   96  ---  101  115  ---   103
   4  |    7    8   12   11   12    4    9    9   11   10    3 |    36   38   33   38   39   33   34   38   36   34    35
   5E |    7   13    8   15   14    5   14   14   10    6    4 |    40   38   35   41   39   36   36   43   40   34    37
   6  |    9   10   12   12   10    5   10   15   11    8    3 |    32   38   32   32   35   30   38   31   33   32    32
   7  |   12   11   12   18   17    4   13   12    9   16    4 |    34   34   28   37   36   27   30   31   30   23    29
   8  |    8    7   12   11   16    6    9    9    8   23    4 |    43   42   40   39   41   39   39   41   38   49    40
   9  |   20   13   13   24   20   15   15   37   21   37    8 |    61   70   60   51   59   55   70   83   58   83    63
  10E |    9   19   12   16   13    6   13   19   16   11    5 |    88   96   89   82   88   84   89  100   88   84    89
  11  |    8    9   16   14   15    3   10    9   14    8    4 |    52   55   47   55   61   50   54   56   52   51    52
  12E |   11   20    7   15   14    5   20   18   13   13    5 |    25   30   21   26   26   20   27   21   28   20    21
  13  |    9   11   14   13   21    5   10   10   13   11    4 |    34   38   28   38   45   32   34   33   30   25    32
  14  |   10   12   14   14   14    5    9   11   15   17    4 |    32   36   28   36   39   30   33   30   32   21    30
  15  |    8   11   13   15   23    4   12   16   13   14    5 |    30   33   27   30   34   26   29   30   34   26    28
  16E |    9   13    8   17   22    6   10   15   21   14    5 |    25   27   23   29   28   23   23   30   31   22    23
  17  |    7   13   13   13   12    5   15   12   14   17    4 |    34   38   31   41   40   33   35   38   34   34    34
  18E |    9   10    6   12   13    4    8   12    7    9    3 |    35   36   32   38   37   32   33   39   36   30    34
  19  |   13   15   12   20   16    4   10   12   14   15    5 |    33   37   30   37   39   32   35   36   32   31    32
  20E |    9    9    9   11   14    6    9   12   15    8    3 |    32   32   27   30   29   26   27   29   32   22    28
  21  |    7    9   16   15   13    4   10   19    9   14    4 |    37   41   33   41   43   36   38   41   39   32    37
  22E |    8   10    7   12   11    4    7    8   11    8    3 |    40   38   33   38   40   35   38   34   39   31    36
  23  |   11   13   12   14   19    6   13   17   16   14    5 |    30   34   24   29   34   24   28   27   24   17    24
  24  |    7    7   13   11   18    6   12   10   11   16    4 |    24   30   26   23   32   23   30   25   24   18    24
  25E |    9   11   15   11   14    4   11   10   12   14    4 |    24   27   31   26   26   24   28   25   31   21    24
  26  |    6    7   13   10   17    4    9   12    8   11    3 |    30   32   29   33   34   27   28   36   29   29    29
  27  |    7    8   14   16   11    4   10   17   12   13    4 |    41   41   33   40   42   36   45   41   38   36    38
  28E |    7   12    9   10   16    4   12    6    9    8    3 |    28   27   24   26   26   22   27   27   25   19    24
  29  |   10   13   15   18   14    6   15   16   17   15    5 |    33   34   31   35   33   30   32   31   34   27    29
  30  |    7   10   11    9   11    5   13   10   10    9    3 |    30   30   30   26   30   26   36   29   27   27    29
  31  |   11   14   14   15   16    6    9   16   12   14    4 |    29   37   23   33   39   25   30   31   28   22    27
  32E |   11   20   14   10   23    6   19   20   23   17    6 |    56   56   55   55   58   55   58   67   57   65    56
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12   12   14   16    6   12   16   13   15      |T   38   41   35   38   39   35   37   40   38   33    36
 WRMS |    9   12   12   13   14    5   12   12   11   11      |NE  35   38   31   36   39   31   36   37   34   32    33
 MEDI |    9   11   13   14   14    5   10   12   12   14      |MD  33   36   30   37   37   30   33   33   33   29    30

Table 3.1814.1   GPS week: 1814   Day: 1   MJD: 56943.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7    9   14   10    9    3   10    7    9   13    3 |    21   29   20   20   28   18   29   21   23   26    22
   2  |   10   12   14   21   12    7   11   37   14   20    6 |    17   23   21   23   21   16   21   36   21   20    16
  X3E |  117   25   21   32  ---   15  ---   19   29  ---   12 |   136   90   80   73  ---   88  ---   86   76  ---    83
   4  |    9    8   13    9   12    4    7    8   12   11    3 |    21   26   23   22   28   22   26   26   27   23    23
   5E |    9   14    7   19   11    4   17   15   12    8    4 |    27   29   22   28   27   23   27   26   27   24    24
   6  |    6    8   13   12    9    4   11   13    9   10    3 |    22   27   21   21   26   19   30   20   21   21    22
   7  |   11   12   13   16   16    6   13   10   10   15    4 |    26   29   21   26   30   20   22   22   22   15    21
   8  |    7    7   10   13   15    5   10   10    9   24    4 |    37   39   38   39   38   37   36   36   38   44    37
   9  |   20   14   13   21   18   15   15   34   17   34    7 |    68   75   68   63   66   64   77   90   66   86    71
  10E |   10   19   12   16   12    7   16   19    9   10    5 |    66   76   69   65   69   65   74   81   66   66    69
  11  |   10   10   16   11   14    5   10    9   12   13    4 |    29   40   31   30   44   30   39   35   37   33    34
  12E |   11   21    7   19   13    7   23   18   16   17    6 |    18   26   14   24   22   13   25   15   21   18    14
  13  |   11   12   13   12   22    5   12   10   13   13    4 |    25   33   21   28   38   22   28   24   21   19    24
  14  |   13   12   11   16   15    6   10   13   18   16    5 |    24   29   23   27   29   20   26   20   21   14    21
  15  |    8   11   14   17   16    6   12   15   11   12    4 |    22   26   21   20   26   17   22   23   20   19    19
  16E |   11   15    9   19   18    7   10   16   13   13    5 |    23   24   18   26   25   17   19   29   27   20    20
  17  |    9   14   13   16   13    4   15   12   14   18    4 |    19   28   21   26   29   19   26   25   24   21    21
  18E |    8   11    7   11   23    5   10   12    9    8    4 |    30   28   26   28   29   25   29   28   26   25    26
  19  |   13   12   14   17   15    5   10   13    9   16    4 |    21   30   21   19   28   19   26   23   24   19    20
  20E |    9    7    9   12   14    7    9   10   12   11    3 |    23   24   19   22   23   17   21   20   22   15    19
  21  |    8   12   16   15   11    5   12   16   11   18    4 |    27   29   24   29   29   23   29   26   26   26    25
  22E |   11   16    5   13   13    5    8    9   13    7    4 |    32   29   27   29   30   26   29   29   36   24    28
  23  |   14   15   13   16   19    7   14   17   13   18    5 |    23   32   19   25   29   19   26   21   17   13    19
  24  |    8    8   13   12   11    4   13   12   10   16    4 |    15   23   18   16   22   14   24   19   17   14    16
  25E |   10   11   15    9   18    6   14   11   16   12    4 |    18   21   26   19   24   17   25   19   21   14    18
  26  |    8    6   12   15   12    5    9   14   14   10    4 |    20   23   21   23   21   18   20   22   20   19    18
  27  |   12    9   13   20   15    5   13   13   16   15    5 |    23   29   22   23   34   22   34   25   32   27    26
  28E |    7   12   10   16   13    6    9    7   11   10    3 |    19   22   18   21   23   15   19   21   22   12    17
  29  |   10   13   14   15   15    8   14   15   19   15    5 |    24   24   22   23   21   19   22   20   24   16    19
  30  |    7   13   11   10   10    6   11    7    6   11    3 |    21   25   24   21   27   19   26   21   22   23    22
  31  |   12   12   12   14   18    4   11   12   20   14    5 |    21   32   19   22   32   17   25   20   24   15    20
  32E |   16   23   13   11   18    8   22   17   18   15    6 |    42   45   39   38   42   41   47   38   50   43    39
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   13   12   15   15    6   13   15   13   15      |T   30   33   27   28   30   25   29   30   29   24    27
 WRMS |   11   13   12   14   14    6   12   13   12   15      |NE  25   31   24   26   30   22   29   27   26   24    24
 MEDI |   10   12   13   15   14    5   11   13   12   13      |MD  23   29   21   24   28   19   26   23   24   20    21

Table 3.1814.2   GPS week: 1814   Day: 2   MJD: 56944.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   10   13   12   12    5   11    7    9    9    3 |    28   31   25   25   27   21   30   22   27   21    25
   2  |   12   13   14   19   15    8   10   37   11   20    6 |    29   33   27   30   26   25   28   45   29   28    26
  X3E |   43   31   24  --- 1530   20  ---   25   26  ---   16 |    95   72   54  ---   57   62  ---   57   53  ---    59
   4  |    5    7   12   11   10    5    7   10    7   11    3 |    32   31   28   33   31   27   30   33   33   30    30
   5E |    7   16    8   17   15    5   19   14   12    8    4 |    26   26   21   26   23   21   25   24   26   21    22
   6  |    6   10   13   13   10    6   11   16   12   10    4 |    30   34   28   29   32   27   35   28   30   27    29
   7  |   10   13   13   17   20    4   12   12    8   15    4 |    30   32   25   32   34   24   28   26   25   23    26
   8  |    7    8   11   13   19    4   11   12    9   23    4 |    21   25   25   24   25   20   23   21   21   28    22
   9  |   21   18   11   25   19   13   16   34   22   33    8 |    63   77   63   54   60   60   72   87   60   81    66
  10E |   11   26   11   17   15    6   16   17   14   10    5 |    65   78   68   63   70   65   73   77   68   66    68
  11  |    6    9   15   12   11    3   10   11   11   12    4 |    41   44   38   41   46   37   43   43   37   40    40
  12E |    9   20    7   18   23    5   26   15   13   13    5 |    25   29   19   26   24   18   29   22   22   21    19
  13  |    9   11   13   16   22    5   14   12   12   12    4 |    29   37   26   35   44   25   30   28   23   23    27
  14  |   10   11   14   13   18    5   11   14   15   14    4 |    27   32   28   30   35   25   30   26   25   21    25
  15  |    7   12   11   14   21    7   14   15   17   12    5 |    24   28   23   27   27   19   25   28   30   24    23
  16E |    8   14   10   18   21    5   12   13   10   11    4 |    34   38   34   36   33   32   33   35   33   31    33
  17  |    8   14   12   13   13    7   15   11   12   21    4 |    30   34   29   34   32   29   35   32   33   27    29
  18E |    9   12    7   14   34    4   10   12   14    7    5 |    31   31   29   31   38   26   30   29   27   27    28
  19  |   12   14   14   18   18    5   11   13   12   18    5 |    24   31   27   30   31   23   28   28   24   24    24
  20E |    8    9    7   11   19    5   10   13   11   10    3 |    26   27   22   27   23   21   23   24   27   22    23
  21  |    9   11   15   18   13    6   13   15   16   16    5 |    28   34   29   33   31   27   31   31   25   27    27
  22E |    9   23    6   12   16    6    8    8   12    8    4 |    31   31   29   29   33   28   30   31   30   25    28
  23  |   11   13   13   16   21    7   15   18   13   15    5 |    23   29   23   25   29   18   26   23   18   17    20
  24  |    7   10   12   12   16    4   11   10   11   14    4 |    22   27   25   25   29   19   28   23   20   18    21
  25E |    8   11   15   10   17    4   12   11    8   14    4 |    24   27   29   25   24   21   27   23   21   23    23
  26  |    6    8   11   13   13    4   10   14   18   12    4 |    24   25   24   29   27   22   23   28   19   23    22
  27  |   12   12   13   19   18    5   10   13    9   14    4 |    29   35   27   32   36   27   36   32   29   31    30
  28E |    7   11    7   11   14    5   10    9    9    9    3 |    26   26   19   24   23   19   21   24   23   19    21
  29  |   10   15   15   17   16    7   14   15   16   16    5 |    28   32   28   32   28   26   28   29   26   25    25
 X30  |    5   10   11   15  ---    4   10   11   12   11    4 |    24   27   26   25  ---   22   29   22   24   22    24
  31  |    9   16   13   14   19    5   10   12   15   13    4 |    25   36   23   26   36   23   28   25   27   21    24
  32E |   16   26   15   12   18    8   20   25   15   14    6 |    40   45   40   44   40   39   40   40   42   44    38
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   14   12   15   18    6   13   16   13   15      |T   32   35   30   31   34   28   32   32   29   28    29
 WRMS |    9   14   12   14   16    5   12   14   11   13      |NE  29   34   28   31   33   26   31   31   27   27    27
 MEDI |    9   12   12   14   18    5   11   13   12   13      |MD  28   31   27   30   31   25   29   28   27   24    25

Table 3.1814.3   GPS week: 1814   Day: 3   MJD: 56945.000                            

        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    8   14    9   12    4   10    8    8   10    3 |    20   27   19   22   25   18   27   20   18   22    20
   2  |    9   14   13   21   13    7   11   36   13   18    6 |    27   29   26   32   28   27   23   41   27   27    24
  X3E |   28   27   34   19 1450   34  ---   22   46  ---   14 |    80   79   87   94  166   87  ---   80   91  ---    77
   4  |    8    8   12    9   12    6    8   11   12   12    3 |    25   25   22   24   25   22   26   28   19   29    23
   5E |    7   14    6   20   16    6   20   12   13   11    4 |    25   26   19   29   26   22   26   25   25   22    22
   6  |    6    8   14   10   10    6   11   14    7   11    3 |    22   29   24   24   28   21   30   26   21   26    23
   7  |    9   12   12   15   15    5   12   10   11   14    4 |    26   28   20   27   31   20   25   22   23   19    21
   8  |    9    8   12   12   19    6   10   13    8   26    4 |    33   35   32   35   39   33   37   33   32   40    33
   9  |   19   16   12   26   18   15   21   33   18   30    7 |    79   84   76   67   75   74   92   94   78   93    80
  10E |    9   24   11   17   16    7   14   19   17   13    5 |    68   77   68   62   71   66   75   80   71   67    70
  11  |    7    9   16   12   14    4   10   10   13   10    4 |    41   44   37   44   46   39   44   44   34   43    40
  12E |   10   19    7   15   25    5   21   11   13   15    5 |    18   21   12   20   19   13   19   17   21   20    14
  13  |    8   12   14   21   28    5   12    9   11   13    5 |    26   31   21   33   38   21   26   23   20   19    22
  14  |    9   12   15   11   18    5   13   10   13   13    4 |    22   26   21   25   32   18   23   21   25   14    20
  15  |    7   14   11   16   19    5   15   12   15   11    4 |    23   28   22   23   26   18   27   22   21   24    20
  16E |    9   12   10   18   22    6   12   15   10   11    4 |    36   40   34   39   44   34   35   41   37   37    36
  17  |    8   13   14   12   13    4   13   13   13   16    4 |    28   30   25   31   31   25   28   33   20   29    26
  18E |    7    9    8   11   18    4    9   10    9    9    3 |    22   21   17   24   25   19   22   24   24   20    20
  19  |   10   15   15   17   16    5   10   16   11   16    5 |    22   30   22   29   25   21   25   25   19   26    21
  20E |    7   10    9   10   16    6    9    9   11    9    3 |    23   24   16   22   23   18   23   22   23   17    19
  21  |    8   10   15   12   14    6   13   14   15   16    4 |    30   32   27   31   29   29   32   31   31   28    28
  22E |    7   12    9   12   16    5    9    9    9    7    3 |    42   44   37   38   42   40   44   43   43   39    41
  23  |   11   12   14   15   18    8   13   16   14   15    5 |    25   29   19   24   30   18   24   20   19   13    18
  24  |    5    9   12   12   17    4   10    8   11   13    3 |    16   23   19   15   28   13   24   19   16   14    16
  25E |    8   13   15   10   19    4   13    8   13   13    4 |    20   23   25   21   23   17   21   19   20   15    18
  26  |    6    7   11   14   16    5    9   12   11   13    3 |    17   21   18   22   24   18   18   23   21   20    18
  27  |   12   13   14   18   15    8    9   11    8   13    4 |    29   31   23   29   32   26   33   28   25   28    27
  28E |    6   11    8    9   16    4    9    7    9   11    3 |    19   20   14   16   22   15   19   20   21   14    16
  29  |    9   14   15   16   14    7   17   13   21   16    5 |    26   27   24   30   25   22   26   26   27   23    22
 X30  |    5   10   11   10  ---    3   12   10    9   13    3 |    18   21   19   16  ---   15   25   17   18   20    17
  31  |    9   12   16   18   16    4    9   10   12   12    4 |    24   32   20   29   36   20   26   20   27   20    23
  32E |   13   17   12   13   16    8   18   20   13   14    5 |    36   34   32   36   30   32   32   29   39   33    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13   12   15   17    6   13   15   12   14      |T   30   33   28   31   36   27   30   31   29   27    28
 WRMS |    9   13   13   13   16    6   12   12   11   14      |NE  27   31   25   29   32   24   30   29   25   27    25
 MEDI |    8   12   12   13   16    5   12   11   12   13      |MD  25   29   22   29   29   21   26   25   23   23    22

Table 3.1814.4   GPS week: 1814   Day: 4   MJD: 56946.000                            

        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    8   14   11   12    4   10    6    8    9    3 |    20   27   18   19   25   18   26   19   20   17    19
   2  |   11   13   14   20   12    8    9   37   11   19    6 |    27   31   25   31   31   27   28   44   25   28    25
  X3E |   30   19   17   18 1894   29  ---   19   32  ---   11 |    76   66   54   56  232   57  ---   55   61  ---    58
   4  |    5    7   12   13   14    4    8    8   11   12    3 |    23   25   23   26   28   23   25   25   26   25    23
   5E |    9   14    7   18   17    5   18   13   13    6    4 |    23   25   18   26   27   19   22   24   24   23    21
   6  |    6    9   13   11   10    5   10   12   12    9    3 |    23   32   22   20   28   21   29   25   23   22    23
   7  |   10   11   14   15   17    5   12   10   11   16    4 |    23   27   18   25   27   16   21   18   21   13    18
   8  |    7    8   12   13   14    5    9   10    7   28    4 |    34   33   30   31   29   30   31   30   32   45    31
   9  |   18   14   12   25   16   12   16   32   20   27    7 |    67   75   66   61   66   61   78   79   70   78    69
  10E |   11   22   12   16   14    5   15   20   10    9    5 |    66   79   69   64   68   66   74   80   68   68    70
  11  |    7    9   16   14   16    4   10    9   13   12    4 |    37   40   37   41   44   37   41   40   40   42    38
  12E |    9   19    6   14   22    5   24   13   12   14    5 |    20   26   14   21   19   15   24   17   20   17    16
  13  |    7   11   15   15   20    5   13   10   15   16    4 |    22   29   17   25   33   17   24   18   17   14    18
  14  |   11   14   13   13   18    6   10   13   15   15    4 |    22   29   20   23   27   17   23   22   22   15    19
  15  |    8   13   14   19   19    5   15   14   18   14    5 |    23   29   23   23   26   18   24   21   28   24    21
  16E |    7   16    7   19   16    5   11   14   13   12    4 |    23   23   18   26   25   19   21   22   22   18    19
  17  |   11   15   14   11   13    4   14   11   15   18    4 |    30   32   25   29   34   25   27   31   28   31    27
  18E |    8   10    7   13   18    6   10   12   13   10    4 |    26   25   23   27   19   20   25   28   23   25    23
  19  |   11   14   12   16   16    4    9   15   13   17    4 |    19   27   21   21   25   17   21   21   18   22    18
  20E |    7    8    8   11   14    5    9    8   12   12    3 |    23   22   16   23   23   18   19   21   20   20    19
  21  |    8   11   14   12   13    6   11   12   11   17    4 |    28   29   24   28   30   22   26   25   27   24    24
  22E |    9   12    6   10   20    5    6    8   15    9    4 |    40   39   34   36   37   36   39   33   35   33    35
  23  |   11   13   14   18   20    6   13   18   18   17    5 |    22   27   16   20   24   13   22   18   18    9    14
  24  |    6    8   15   10   15    4   11    7   13   15    4 |    18   24   18   16   24   13   24   17   19   14    17
  25E |    7   12   15   11   16    6   12    9   10   12    4 |    20   21   26   18   16   18   20   18   18   14    18
  26  |    6    8   12   15   16    6    9   13   14   13    4 |    17   22   17   20   22   15   15   21   18   18    16
  27  |    9   12   14   18   14    4   10   10   11   11    4 |    25   26   23   25   28   21   28   23   24   23    23
  28E |    8   13   10   10   17    5   10    8   10   12    3 |    22   23   17   18   22   16   18   19   25   17    18
  29  |   10   15   14   16   14    7   15   14   19   16    5 |    28   31   28   30   26   25   29   26   27   23    24
  30  |    7    9   11    9   11    3   13   11   11   10    3 |    18   22   19   18   27   16   28   15   20   17    18
  31  |    9   12   14   15   17    7    9    9   14   13    4 |    24   30   19   25   33   19   24   19   23   17    21
  32E |   14   19   11   18   17    7   19   17   16   15    5 |    32   36   33   41   34   32   34   31   36   32    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13   12   15   16    6   12   15   13   15      |T   28   32   25   28   36   24   28   28   28   25    26
 WRMS |    9   13   13   14   15    5   12   11   12   14      |NE  26   30   24   26   30   22   28   26   26   24    24
 MEDI |    8   12   13   14   16    5   11   12   13   13      |MD  23   27   22   25   27   19   25   22   23   22    21

Table 3.1814.5   GPS week: 1814   Day: 5   MJD: 56947.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7    8   13   10   12    4   10    5   13    5    3 |    21   26   18   18   25   16   27   20   25   15    19
   2  |   11   11   15   18   12    9   11   36   12   19    6 |    23   26   23   25   23   22   22   41   29   22    21
  X3E |   25   17   16   24 1884   18  ---   16   48  ---   11 |    80   64   70   72  188   59  ---   63   67  ---    65
   4  |   10    7   12    8   15    6    7    7    9   11    3 |    25   20   19   21   25   19   20   20   26   21    20
   5E |    8   14    7   18   17    4   18   12   12   14    4 |    22   27   22   27   23   22   24   26   27   23    22
   6  |   12    7   14   14   12    6   15   12   12    8    4 |    22   28   21   20   28   19   34   23   21   20    21
   7  |   12   11   12   14   18    4   11   10    9   12    4 |    26   27   20   24   31   17   24   20   18   15    20
   8  |    8    7    9   12   16    7   10   10   11   24    4 |    50   48   46   47   50   46   46   47   45   54    47
   9  |   21   14   12   26   24   15   18   29   21   27    7 |   103  114  105  101   99   99  117  125  105  119   109
  10E |   14   20   12   13   15    5   15   21    8   10    5 |    63   74   68   64   69   64   74   81   66   65    68
  11  |   10    9   15   11   14    6   10    8   15   12    4 |    36   34   32   33   38   31   35   32   38   32    32
  12E |   10   18    7   12   22    6   21   12   13   10    5 |    20   21   13   19   16   12   18   18   23   16    14
  13  |   11   12   14   17   27    6   13   10   14   12    5 |    27   30   20   28   41   20   26   23   22   16    22
  14  |   10   12   12   14   19    7   10   15   13   14    4 |    19   26   19   21   28   14   23   22   18   14    17
  15  |    7   12   11   13   21    6   14   12   11   11    4 |    24   28   22   24   26   18   23   24   22   22    21
  16E |    8   13    7   14   19    5   15   15   15   13    4 |    31   29   27   33   31   27   30   29   32   27    28
  17  |   23   15   16   14   13    6   14   13   12   15    5 |    29   28   22   28   28   21   25   29   27   22    22
  18E |   10   11    8   12   17    5   13   12    9   10    4 |    22   20   15   20   18   15   23   20   21   16    17
  19  |   10   15   13   14   18    4   10   13   11   16    4 |    18   25   20   21   21   17   22   19   22   19    17
  20E |    9   10    8   13   17    6    9    9   13    9    3 |    24   19   17   21   24   18   20   22   29   18    19
  21  |   10   11   15   14   14    5   12   12   15   15    4 |    27   29   25   26   26   21   27   22   28   21    23
  22E |   10   11    7    9   15    5   10   12    8    8    3 |    47   46   43   44   43   42   48   48   49   42    45
  23  |   11   13   13   17   21    6   13   15   17   15    5 |    22   26   16   18   25   12   21   16   17   10    14
  24  |    6    8   14   11   14    6   11    5    9   13    3 |    18   22   20   17   24   14   22   17   17   11    16
  25E |    9   10   15   11   15    4   10    8   12   12    4 |    19   21   26   20   16   16   19   20   21   16    18
  26  |    6    9   11   11   19    5    8   13   13   13    4 |    16   21   17   20   27   14   16   22   17   16    16
  27  |   11    9   14   14   12    4   10   10   10   13    4 |    24   25   21   20   24   19   28   22   29   22    22
  28E |   12   13   10   10   15    4   10    7   12    7    3 |    24   19   16   18   23   15   19   19   23   13    17
  29  |   12   14   14   17   14    6   17   12   14   16    5 |    25   27   24   30   27   22   24   26   30   22    23
  30  |   18   13   10   12   12    5   13    8   11    7    4 |    28   23   21   20   27   17   31   17   17   17    20
  31  |   10   12   15   16   20    6   10    9   14   12    4 |    24   30   18   21   32   16   24   19   23   18    20
  32E |   16   17   12   16   21    8   16   17   20   15    6 |    32   30   30   35   33   32   32   27   36   31    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   12   12   14   17    6   13   14   13   13      |T   30   32   28   29   36   25   30   30   30   25    27
 WRMS |   12   12   13   13   17    6   12   11   11   13      |NE  28   31   26   27   32   23   30   28   28   25    25
 MEDI |   10   12   12   14   16    6   11   12   12   12      |MD  24   27   21   21   27   19   24   22   25   20    21

Table 3.1814.6   GPS week: 1814   Day: 6   MJD: 56948.000                            

        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   13   12   11    4   10    8    7    8    3 |    25   28   20   22   26   21   30   22   25   19    22
   2  |   11   13   13   17   14    7   12   37   13   17    6 |    28   32   28   34   33   30   32   45   32   28    28
  X3E |   34   18   22   15 2044   16  ---   19   44  ---   13 |    82   65   66   70   65   69  ---   70   79  ---    68
   4  |    7    9   11   12   12    3    7   11    9   11    3 |    31   29   27   31   30   30   31   33   32   30    29
   5E |   10   13    7   19   14    4   15   14   11   10    4 |    32   32   27   37   28   27   33   31   31   28    28
   6  |    5   10   13   12   10    5   12   11   10    9    3 |    27   30   24   23   30   22   33   24   21   26    24
   7  |    8   14   14   19   15    3   11    8    9   14    4 |    30   29   21   32   31   21   27   22   20   19    22
   8  |    8   10   12   16   13    4    8   15    8   22    4 |    65   66   66   71   65   67   67   69   67   63    66
   9  |   20   17   12   24   12   13   18   33   17   26    7 |    73   80   72   58   66   67   84   83   74   82    73
  10E |   20   20   11   14   13    6   16   22    9   10    5 |    73   80   74   67   71   71   80   87   73   72    74
  11  |    8   10   14   12   14    4   10    9   10   10    3 |    49   50   46   53   53   49   53   53   50   50    49
  12E |    9   17    8   13   26    4   18   13   14   11    5 |    23   25   16   23   19   15   21   18   21   17    16
  13  |    9   13   15   17   20    4   12   11   11   13    4 |    29   32   20   33   39   23   29   23   19   17    23
  14  |    9   12   11   11   16    5   10   15   13   14    4 |    25   29   20   26   30   18   25   25   20   15    21
  15  |    9   13   12   16   20    5   15   14    8   11    4 |    24   30   24   27   26   21   27   22   26   24    21
  16E |    7   21    8   20   20    5   14   13   13   14    5 |    21   29   21   30   27   22   23   25   24   27    22
  17  |   10   13   16   12   11    6   14   15    9   16    4 |    27   30   24   32   34   27   30   36   32   32    28
  18E |   10   11    9   15   16    5   11   11    9   10    4 |    25   24   21   26   23   19   24   25   22   20    21
  19  |   12   17   14   17   16    4   11   16   10   14    5 |    24   31   22   31   28   24   27   31   25   27    24
  20E |    9    9    8   12   14    4    7    9    9   12    3 |    28   27   25   32   30   26   29   25   27   27    25
  21  |    7   11   15   16   13    5   10   10    8   14    4 |    32   36   28   38   33   30   33   33   32   30    31
  22E |    7   12    9   11   15    6    9   10   13    7    3 |    37   34   30   35   38   32   36   36   35   26    33
  23  |   10   15   14   17   21    6   12   17   14   15    5 |    25   28   18   26   27   17   24   23   21   19    18
  24  |    7   11   14    7   15    4   13    7    9   14    4 |    17   26   19   18   27   14   28   17   19   15    17
  25E |    8   11   15   13   15    4   11   10    7   13    4 |    24   24   29   21   20   18   22   20   20   12    19
  26  |    6    9   13   16   18    5   11   11    5   10    4 |    16   21   14   20   23   14   19   21   12   15    14
  27  |    7   10   19   17   10    4   10    9   11   14    4 |    31   31   26   35   33   29   37   32   31   30    30
  28E |    7   14   10   10   13    4   12    8    7   10    3 |    23   23   14   19   20   15   20   17   20   13    16
  29  |   11   16   15   18   14    8   17   14   14   16    5 |    31   32   29   33   29   27   31   29   30   25    27
  30  |    8   10   12   27   13    6   13    9    9   11    4 |    24   24   21   28   25   18   32   18   20   18    21
  31  |   13   16   14   16   19    3   10   14    9   13    4 |    28   31   19   28   36   21   27   23   24   21    23
  32E |   16   15   12   10   19    6   18   17   14   15    5 |    44   41   41   47   47   43   43   39   46   43    41
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13   13   16   16    5   12   15   11   14      |T   33   35   29   34   34   29   34   33   32   28    30
 WRMS |    9   13   13   15   15    5   12   12    9   12      |NE  31   34   28   33   34   28   34   32   30   28    29
 MEDI |    9   13   13   15   14    5   12   11    9   13      |MD  28   30   24   31   30   23   30   25   25   26    24



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 4.1814   GPS week: 1814   MJD: 56942.0-56948.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3053 |U    6     6    17 |U    7     9    26 |U    8     9    17 |
emr | emr 3057 |     9     8    19 |U    9    11    31 |    10    13    21 |
esa | esa 3072 |     7     7    18 |U    7     8    28 |    10    12    21 |
gfz | gfz 3045 |U    7     7    18 |U    8     8    29 |U    9    11    20 |
grg | grg 3010 |    12     9    27 |U   10    11    34 |U    9    12    20 |
igr | igr 3007 |     6     6    18 |     7     8    27 |     9    11    18 |
igs | igs 2993 |     7     6    18 |     8    11    29 |     9    11    19 |
jpl | jpl 2968 |     8     8    20 |    10    15    38 |U   10    11    20 |
mit | mit 3072 |    10     8    23 |U    9    13    34 |U    9    11    20 |



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 5.1814.0   GPS week: 1814   Day: 0   MJD: 56942.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |     6     5    18 |     5     9    28 |     8     7    15 |
emr | emr 3056 |    10     7    25 |     9    11    37 |    10    13    21 |
esa | esa 3072 |     7     5    21 |     6    10    32 |    10    11    19 |
gfz | gfz 3060 |     6     5    21 |     6    10    30 |     8     8    15 |
grg | grg 2976 |    11     9    24 |    10     9    35 |    11    15    16 |
igr | igr 3043 |     7     5    20 |     5     8    32 |     9     9    15 |
igs | igs 2931 |     7     5    21 |     6     9    33 |     8    10    16 |
jpl | jpl 2968 |     8     6    24 |     7    11    37 |    10    11    18 |
mit | mit 3072 |    10     7    21 |     7    10    37 |     9    12    15 |

Table 5.1814.1   GPS week: 1814   Day: 1   MJD: 56943.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3043 |     5     7    21 |     9    11    37 |     8    10    18 |
emr | emr 3057 |     9     8    25 |    11    15    49 |    10    12    18 |
esa | esa 3072 |     6     8    20 |     9    11    39 |     8    11    17 |
gfz | gfz 3060 |     6     8    20 |     9    11    39 |     7    10    18 |
grg | grg 2976 |    10     8    25 |    12    16    46 |     8    13    18 |
igr | igr 2880 |     6     6    22 |     9    11    36 |     8    11    18 |
igs | igs 2927 |     6     7    21 |     9    12    40 |     7    10    16 |
jpl | jpl 2968 |     7     8    26 |    19    28    72 |    12     9    22 |
mit | mit 3072 |     9     9    24 |    11    25    48 |     7     8    18 |

Table 5.1814.2   GPS week: 1814   Day: 2   MJD: 56944.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3062 |     4     3    11 |     7     9    31 |     9    12    18 |
emr | emr 3060 |     9     6    13 |    11    12    36 |    10    14    23 |
esa | esa 3072 |     5     5    13 |     7     8    29 |    10    13    22 |
gfz | gfz 2967 |     7     6    15 |     8     8    26 |     8    11    20 |
grg | grg 2974 |    15     8    38 |    11    15    44 |     9    13    22 |
igr | igr 3010 |     4     4    13 |     7     8    26 |     9    12    19 |
igs | igs 3012 |     5     5    13 |     9    15    38 |     8    12    19 |
jpl | jpl 2968 |     7     8    16 |    11    18    37 |    10    11    20 |
mit | mit 3072 |    10     6    21 |     9    14    33 |     9    12    21 |

Table 5.1814.3   GPS week: 1814   Day: 3   MJD: 56945.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3060 |     7     5    15 |     5     9    18 |     9     8    17 |
emr | emr 3057 |     9     7    17 |     7     8    19 |    11    13    22 |
esa | esa 3072 |     8     6    15 |     7     7    24 |    10    12    22 |
gfz | gfz 3057 |     9     6    14 |     7     8    27 |    10    10    21 |
grg | grg 2934 |    16     7    38 |     9     8    26 |    10    11    21 |
igr | igr 3050 |     7     6    16 |     7     8    26 |     9    11    18 |
igs | igs 2991 |     8     6    15 |     6     7    18 |     9    10    19 |
jpl | jpl 2968 |     9     9    17 |     8     8    34 |    12    12    20 |
mit | mit 3072 |    10     6    20 |     7     7    26 |    10     9    19 |

Table 5.1814.4   GPS week: 1814   Day: 4   MJD: 56946.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3054 |     8    10    25 |     6     8    19 |     7     9    12 |
emr | emr 3060 |     9    13    25 |     7     8    25 |     8    12    16 |
esa | esa 3072 |     9    11    26 |     5     7    23 |     9    11    17 |
gfz | gfz 3060 |     9    11    25 |     7     7    22 |     7    11    14 |
grg | grg 3072 |    10    10    25 |     8     7    26 |     8     9    14 |
igr | igr 3050 |     8    11    25 |     5     7    22 |     8    10    13 |
igs | igs 3062 |     8    10    21 |     6     8    24 |     9    14    17 |
jpl | jpl 2968 |     8    13    24 |     7    10    26 |     8    10    15 |
mit | mit 3072 |     9    10    26 |    10    11    42 |    11    13    24 |

Table 5.1814.5   GPS week: 1814   Day: 5   MJD: 56947.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3042 |     5     6    17 |     6     9    22 |     7     9    16 |
emr | emr 3055 |     7     9    16 |     9    14    24 |     8    11    20 |
esa | esa 3072 |     6     7    18 |     6     8    21 |    11    12    22 |
gfz | gfz 3055 |     6     7    16 |     8     8    30 |     9    11    22 |
grg | grg 3069 |    12     8    23 |    10    15    27 |     8    11    18 |
igr | igr 2976 |     5     7    18 |     6     9    18 |    10    12    17 |
igs | igs 2967 |     6     8    18 |     8    15    26 |     9    11    19 |
jpl | jpl 2968 |     8    10    18 |    10    18    31 |     9    10    19 |
mit | mit 3072 |     6     6    17 |    10    17    25 |     8    11    19 |

Table 5.1814.6   GPS week: 1814   Day: 6   MJD: 56948.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |     5     4    14 |     8    10    29 |    11    12    22 |
emr | emr 3059 |     8     6    15 |     9     9    27 |    12    13    26 |
esa | esa 3072 |     7     4    14 |     9     8    28 |    13    14    26 |
gfz | gfz 3060 |     7     5    14 |     9     9    29 |    13    14    28 |
grg | grg 3072 |     8    14    19 |    10     9    31 |    11    13    27 |
igr | igr 3045 |     5     4    14 |     8     8    30 |    12    13    23 |
igs | igs 3062 |     6     4    15 |     9     9    26 |    12    13    26 |
jpl | jpl 2968 |     8     5    15 |    10    11    27 |    11    13    23 |
mit | mit 3072 |    14    15    28 |     9     9    27 |    12    12    26 |


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

Table 6.1814   GPS week: 1814   MJD: 56942.500-56948.500

                                                         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 |     -37     -11      11     -70     -8 |      20     28
            |      12      21     111      68      5 |       7
emr   uuuuu |       9       1      -2     -42     18 |      12     24
            |       9      17     111      46      3 |       4
esa   uuuuu |       7       8      47      38     -5 |      21     27
            |      14      15      58      62      6 |       6
gfz   uuuuu |      11     -18      51    -180    -10 |     -54     62
            |      22      18      70      77     12 |      13
grg   uuuuu |      13       9      -5     113      6 |      31     35
            |      17      18      55     100      8 |       3
igr   xxxxx |      13      13       6     111     -4 |       0     17
            |      16      11      60      25      6 |       5
irf   xxxxx |      27      12     -17      50     -2 |       0     14
            |      11      11      19      24      3 |       4
jpl   uuuuu |      11      33      20      75      1 |      16     25
            |      17      17      63      37      5 |       4
mit   uuuuu |      30      12     -65      83     -3 |      21     25
            |      25      14      52      49      4 |       4
ngs   uuuxu |     -49     -38     -72     346     -4 |      11     16
            |      55      59      77     154      5 |       3
sio   uuxxx |      33      10     -64     236      5 |      42     44
            |      14      12      69      48     10 |       2


Table 7.1814.0   GPS week: 1814   Day: 0   MJD: 56942.500

                                                         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 |     -40     -31      82    -102    -11 |      25     34
emr   uuuuu |      -4     -14      95      45     18 |       4     20
esa   uuuuu |      27      -8      45     -26     -3 |      24     31
gfz   uuuuu |      25     -16      81    -190    -27 |     -36     56
grg   uuuuu |      -6      -1     -15     118      2 |      28     33
igr   xxxxx |      15      12      81     110     -3 |       2     19
irf   xxxxx |      40      10     -31      62     -3 |       0     16
jpl   uuuuu |      35      15     -68      84      8 |      17     27
mit   uuuuu |      60       9     -94     123     -1 |      19     25
ngs   uuuxu |    -102      67    -193     450    -10 |      11     17
sio   uuxxx |      34       0     -66     289     -7 |      41     45

Table 7.1814.1   GPS week: 1814   Day: 1   MJD: 56943.500

                                                         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      15    -121     -72    -16 |      29     36
emr   uuuuu |       3     -10      -7     -46     14 |      11     23
esa   uuuuu |       8      -4      17     -25     -7 |      29     34
gfz   uuuuu |      -9     -26     146    -218    -21 |     -39     57
grg   uuuuu |      12      -1      29     168     13 |      33     37
igr   xxxxx |      23       5      96     141    -13 |       7     18
irf   xxxxx |      45      17      -7      52      3 |       5     14
jpl   uuuuu |      25      52     105      93     -4 |      21     31
mit   uuuuu |      63      22     -41     107      5 |      25     28
ngs   uuuxu |    -103     -79     -57     384     -5 |      15     19
sio   uuxxx |      51      25      11     271      6 |      45     48

Table 7.1814.2   GPS week: 1814   Day: 2   MJD: 56944.500

                                                         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 |     -48     -24      60     -11     -8 |      26     33
emr   uuuuu |      20       6     -41     -78     18 |      13     24
esa   uuuuu |     -15      18     113      34     -9 |      26     31
gfz   uuuuu |     -18     -21     -16    -306    -11 |     -48     59
grg   uuuuu |       7      21     -20      53     18 |      34     37
igr   xxxxx |      -1      24     -22     133    -11 |       4     17
irf   xxxxx |      20      25     -46      92     -3 |       4     14
jpl   uuuuu |       6      58      11     130     -3 |      18     28
mit   uuuuu |      36      23    -148     140     -4 |      25     28
ngs   uuuxu |       4     -83     -40     581     -5 |      13     17
sio   uuxxx |      44      21    -138     262      0 |      44     46

Table 7.1814.3   GPS week: 1814   Day: 3   MJD: 56945.500

                                                         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      -4     -11     -20     -9 |      22     29
emr   uuuuu |      21       0     -77     -41     20 |      14     25
esa   uuuuu |      -4      13     -65     101    -11 |      22     27
gfz   uuuuu |       5     -27       7    -166     -8 |     -59     60
grg   uuuuu |       5     -14      96      89     -2 |      34     37
igr   xxxxx |     -15       6     -55      66     -6 |       1     15
irf   xxxxx |      18       0       0      14     -5 |       2     13
jpl   uuuuu |     -10      39      50      48      6 |      15     24
mit   uuuuu |      -2       4       1      -9     -4 |      24     27
ngs   uuuxu |      17     -19      42     319     -2 |      12     16
sio   uuxxx |      10       3      38     166     25 |      42     44

Table 7.1814.4   GPS week: 1814   Day: 4   MJD: 56946.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -24     -10      48     -18      1 |      17     24
emr   uuuuu |      14       1      82     -21     21 |      15     25
esa   uuuuu |      16      25      52     117     -3 |      17     23
gfz   uuuuu |       2      -3      54    -157      3 |     -63     65
grg   uuuuu |       4      30      -3     -64     11 |      30     34
igr   xxxxx |      12      -4     -17      99     -1 |      -3     16
irf   xxxxx |      24      19     -28      51     -3 |      -1     13
jpl   uuuuu |       3      21     -13      12      3 |      13     23
mit   uuuuu |      26      21    -107      80     -6 |      20     24
ngs   uuuxu |     -54     -76    -147     378     -8 |       9     15
sio   uuxxx |      30      -8    -140     186     12 |      40     42

Table 7.1814.5   GPS week: 1814   Day: 5   MJD: 56947.500

                                                         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 |     -47      14    -145    -204     -6 |      16     23
emr   uuuuu |       5     -12     121     -58     13 |      16     26
esa   uuuuu |      12      21      93      80     -9 |      16     22
gfz   uuuuu |      35      10     -37     -49    -11 |     -63     65
grg   uuuuu |      47      -3     -50     192     -5 |      32     36
igr   xxxxx |      26      22     -44     124      5 |      -3     16
irf   xxxxx |      19      17       6      38     -4 |      -2     14
jpl   uuuuu |      22      23      85      73      3 |      15     24
mit   uuuuu |      19      17     -23      68     -7 |      20     24
ngs   uuuxu |    -104     -86     -45     143      6 |       9     15
sio   uuxxx |      42      11     -56     208      1 |      42     44

Table 7.1814.6   GPS week: 1814   Day: 6   MJD: 56948.500

                                                         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 |     -52     -39     163     -64     -3 |       9     17
emr   uuuuu |       7      35    -190     -99     19 |      14     26
esa   uuuuu |       8     -11      71     -18      5 |      10     19
gfz   uuuuu |      39     -45     124    -174      5 |     -69     71
grg   uuuuu |      24      31     -73     235      7 |      28     33
igr   xxxxx |      29      24       0     106     -2 |      -8     15
irf   xxxxx |      22      -4     -11      37     -1 |      -7     15
jpl   uuuuu |      -4      25     -30      85     -4 |      10     20
mit   uuuuu |       8     -14     -47      70     -6 |      14     20
ngs   uuuxu |      -3      12     -66     166     -3 |       5     13
sio   uuxxx |      23      19    -101     269      1 |      38     41



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