[IGSREPORT-24308] Wk 1886 IGS Final Orbits

IGS ACC acc at igs.org
Thu Mar 17 15:52:04 PDT 2016


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1886   (Feb 28, 2016 - Mar 05, 2016)

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:

igs1886[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1886[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1886[0-6].cls  IGS GPS clock combination summary report.
igs18867.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18867.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 POTS
                0  |  EMR   | YELL
                0  |  ESA   | KELY MAL2 KELY MAL2
                0  |  GFZ   | ALGO POHN TONG ALGO TONG
                0  |  GRG   | 10 10 DRAG
                1  |  ALL   | 13 13
                1  |  COD   | 32
                1  |  GFZ   | ALGO NYA1 TONG ALGO
                1  |  GRG   | 10 10 ALRT CAS1 RABT ALRT CAS1 RABT XMIS
                1  |  MIT   | NYA1
                2  |  COD   | ARTU
                2  |  ESA   | ARTU SYOG
                2  |  GFZ   | ALGO ARTU NICO POHN SYOG TONG ALGO NRMD POHN PRDS
                2  |  GRG   | 10 10 NICO POTS SYOG MAL2 NICO POTS SYOG
                2  |  JPL   | THTI
                3  |  COD   | SYOG HARB TLSE
                3  |  EMR   | 26 13 26 SYOG
                3  |  ESA   | TWTF POTS QAQ1 TWTF UFPR
                3  |  GFZ   | ALGO HARB KARR POTS SYOG ALGO
                3  |  GRG   | 10 10 KARR KARR
                3  |  JPL   | TIXI
                3  |  MIT   | 31 31
                4  |  COD   | KARR KARR
                4  |  EMR   | TWTF TWTF
                4  |  ESA   | TWTF TWTF
                4  |  GFZ   | ALGO BOGT MAL2 ONSA STHL TONG ALGO NICO ONSA TONG
                4  |  GRG   | 10 10 ARTU KARR REUN TLSE ARTU KARR REUN TLSE
                4  |  MIT   | NICO XMIS NICO XMIS
                5  |  COD   | 32 32 NICO
                5  |  ESA   | SCOR SCOR
                5  |  GFZ   | ALGO KOUR NANO POHN TONG ALGO KOUR REUN TONG
                5  |  GRG   | 10 10 MAL2 MAL2
                5  |  MIT   | NICO
                6  |  COD   | 32 32 POTS
                6  |  GFZ   | ALGO MAL2 NRIL POHN TONG ALGO HOB2 MAL2 POHN
                6  |  GRG   | 10 10 XMIS XMIS

 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 table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G15 | 2016_03_04 | 2016020 

 7. 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
               ----+--------+---------------
                0  |  COD   |  13
                0  |  GFZ   |  13
                0  |  GRG   |  13
                0  |  MIT   |  13
                1  |  COD   |  13
                2  |  COD   |  32
                2  |  GRG   |  10
                2  |  NGS   |  32
                3  |  GRG   |  10
                5  |  GRG   |  10
                6  |  GRG   |  10

 8. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G10 |    |    |    |    |    |    |  4 |
           PRN G13 |  4 |  4 |  4 |    |    |    |    |
           PRN G32 |    |    |  4 |  4 |  4 |  4 |  4 |

 9. 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.

10. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |   -1.4   -2.1   -1.8     -62    -11    -16     .71
       EMR  |   0 |    3.8   -1.9    8.2       5    -16     -5     .87
       ESA  |   0 |     .4   -1.7    -.4     -19    -27      8     .41
       GFZ  |   0 |    1.0   -1.2    -.6     -59   -109    -18     .83
       GRG  |   0 |    7.8    3.9  -19.0      23    -53     64     .65
       JPL  |   0 |   -3.7    4.4    6.2      16     25     36     .31
       MIT  |   0 |    5.8    1.5   14.3      16     -8    -35     .93
       NGS  |   0 |    3.5    -.6    5.9      -8    -26     23     .84
       SIO  |   0 |    8.0    1.4    5.8       1    -47     13     .27

       COD  |   1 |   -2.1   -1.9   -2.3     -72      0    -26     .74
       EMR  |   1 |    4.4   -3.6    6.8       9    -17    -13     .88
       ESA  |   1 |    -.2   -1.1    -.7     -26    -35     36     .46
       GFZ  |   1 |     .8    -.7   -1.3     -57   -119    -41     .90
       GRG  |   1 |   13.9    2.8  -28.8      36    -37     68     .50
       JPL  |   1 |    1.1    1.9    5.1      -5     19     27     .46
       MIT  |   1 |    6.6    -.3    5.4      22    -15    -33    1.06
       NGS  |   1 |    9.2   -1.2    8.1      -6    -76     76     .88
       SIO  |   1 |    8.0     .4   -5.6      -5    -35     22     .58

       COD  |   2 |   -1.7   -2.0    -.9     -59    -25     -5     .58
       EMR  |   2 |    4.6   -5.3   17.0      -6      7    -33     .79
       ESA  |   2 |    -.2   -1.8    -.0     -51    -43     25     .46
       GFZ  |   2 |     .3    -.8   -1.9     -43   -103    -24     .82
       GRG  |   2 |   12.8    -.2  -18.6      -7    -60     55     .73
       JPL  |   2 |    -.9   -2.1    8.5       1     61     -8     .83
       MIT  |   2 |    6.7   -2.6   14.4       1     -7    -41     .97
       NGS  |   2 |    4.1   -2.8    9.9     -62    -33     23     .87
       SIO  |   2 |    6.6   -5.3     .4     -44    -19     17     .45

       COD  |   3 |   -1.4   -1.2   -1.3     -26    -27     -2     .91
       EMR  |   3 |    4.1   -6.3   10.5      -2    -25     -9     .85
       ESA  |   3 |     .3   -2.9    -.6     -25    -45      8     .43
       GFZ  |   3 |     .6   -1.4    -.5     -56    -99    -38     .74
       GRG  |   3 |    6.2   -5.6  -21.0      10    -43     70     .77
       JPL  |   3 |    1.4   -4.9    2.3     -47     10     11     .99
       MIT  |   3 |     .9   -4.4   11.2      25     -8    -35     .86
       NGS  |   3 |    3.6   -4.5   13.3     -89    -46     -5     .98
       SIO  |   3 |    3.4    -.3   -4.5     -27     -6     23     .46

       COD  |   4 |    -.9    -.7    -.7     -39      5     -3     .94
       EMR  |   4 |    6.0    2.4    9.1     -14    -21     -1     .76
       ESA  |   4 |   -1.1   -1.8    -.2      -4    -29     19     .61
       GFZ  |   4 |    1.2   -2.1    -.7     -70   -110    -24     .69
       GRG  |   4 |    6.2    -.3  -11.9      25    -63     68    1.06
       JPL  |   4 |     .5    1.9    5.2     -71      3     62     .83
       MIT  |   4 |   -1.4   -1.8   15.1       9     20    -45     .94
       NGS  |   4 |     .2    1.9    7.5     -27    -14     -7     .80
       SIO  |   4 |   -2.6   -2.8   -3.7     -36    -30     12     .47

       COD  |   5 |     .1   -1.9   -1.2     -51    -34     -2     .68
       EMR  |   5 |    5.4    2.8    5.8      -1    -11     -1     .74
       ESA  |   5 |    -.7   -2.1   -1.0     -38    -27     22     .49
       GFZ  |   5 |    1.9   -1.9   -1.3     -79   -129    -57     .77
       GRG  |   5 |    6.1    -.0     .8      17    -72     56    1.16
       JPL  |   5 |   -2.2     .3    5.4     -40     27     54     .88
       MIT  |   5 |    -.7   -2.7   14.1      -7      2    -53     .77
       NGS  |   5 |    -.0   -2.2   18.2     -91    -31    -52     .68
       SIO  |   5 |    1.2     .6   -2.3     -19    -26     11     .45

       COD  |   6 |    -.3   -1.5    -.8     -61    -35     -4     .66
       EMR  |   6 |    2.1   -1.9    6.4      -1    -21     -3     .84
       ESA  |   6 |    -.5   -2.1    -.2     -13    -34     30     .46
       GFZ  |   6 |    1.4   -1.6   -1.8     -60   -103    -63     .84
       GRG  |   6 |    5.8   -4.0  -14.9       2    -80     70    1.19
       JPL  |   6 |   -8.0    1.9    2.0      15     37     69     .47
       MIT  |   6 |    3.4   -4.4    7.5     -11      2    -62     .86
       NGS  |   6 |    3.9   -7.1    8.4     -64    -26      5     .69
       SIO  |   6 |   -2.8     .7   -7.8     -24    -15    -19     .69


11. 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.

12. 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 1.1886.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1886.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 2.1886.[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 3.1886.[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 5.1886.0-6). 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 1886 summary.                       (Feb 28, 2016 - Mar 05, 2016)

Table 1.1886.a   GPS week: 1886   MJD: 57446.000-57452.000

         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  245|    0     0     0     9    -6     0   .02   12   11 |    -959      14     15    143
        |    0     0     1    20    22    14   .06           |     162     292
emr   80|    0     0     2    -7    -7   -18   .19   11   11 |    3757     262     14    152
        |    0     1     1    15    13    14   .02           |     338     507
esa  150|    0     0    -1   -25   -22    34  -.32   12   12 |    -102     144      9    163
        |    0     0     1    16     6     8   .02           |     514     936
gfz  205|    0     0    -1     5   -13     7   .05   11   10 |    -451      81     11    147
        |    0     0     1    11     7    14   .03           |     254     324
grg  125|    0     2    -8     0    40    24   .13   17   16 |    -185      79     14    221
        |    1     1     3    13    34    14   .05           |     215     305
igr  n/a|    0     0    -3     6     6     4   .00    4    4 |   -1408     -74     14     87
        |    0     0     0    26    14    14   .01           |    1174     672
jpl   80|   -1     0     3    34    31    17   .28   10   10 |    1559     296     14    136
        |    1     1     1    26    18    34   .02           |     441     527
mit  349|    0    -1     1    -6    -2   -33  -.24   11   10 |     -36      10     41    426
        |    0     0     1    19    26    18   .02           |     397     353
ngs  226|    0     0     0   -23    -2    -8  -.06    9    8 |    -943      45   1018   2250
        |    0     0     3    24    21    22   .03           |     234     275
sio  305|    0     0    -1     4   -12     1  -.13   13   12 |     ---     ---    ---    ---
        |    0     0     4    25    36    31   .05           |     ---     ---


Table 1.1886.b   GPS week : 1886   MJD: 57446.000-57452.000   

         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  |    3    4    4    4    3    4    4 |
   2  |    5    4    4    5    5    4    4 |
   3  |    4    4    4    4    4    4    4 |
   4  |    0    0    0    0    0    0    0 |
   5  |    4    4    4    4    4    5    4 |
   6  |    3    4    4    4    4    4    4 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    3    4    3    4    3    3 |
   9  |    4    4    4    4    4    3    4 |
  10  |    8    9    7    7    9    6    6 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    0    0    4    5    5    4    4 |
  14  |    4    5    5    4    4    4    5 |
  15  |    4    4    5    5    5    0    5 |
  16  |    5    5    5    5    5    5    5 |
  17  |    4    4    4    4    4    4    4 |
  18  |    4    4    5    4    4    4    5 |
  19  |    5    4    4    5    5    5    5 |
  20  |    3    4    4    4    4    4    4 |
  21  |    4    4    4    4    4    4    5 |
  22  |    4    4    4    4    4    4    4 |
  23  |    5    5    5    5    5    5    5 |
  24  |    4    4    4    4    4    3    4 |
  25  |    3    4    4    4    4    4    4 |
  26  |    4    4    4    4    5    4    4 |
  27  |    3    3    4    3    3    3    3 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    5    5    5    5    5    5 |
  30  |    4    4    4    4    4    3    3 |
  31  |    5    4    5    4    4    4    5 |
  32  |    8   10   19    0   12    9   10 |



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 2.1886.0   GPS week: 1886   Day: 0   MJD: 57446.000                            

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|    0     0    -1    -9    -9   -11   .08   12   11 |    -946     240     14    132
emr   80|    0     0     3   -37   -13    -6   .18   11   11 |    3598     282     14    144
esa  150|    0     0     0   -35   -20    20  -.31   11   11 |      19     -14      8    166
gfz  206|    0     0     0     3   -16    26   .05   10   10 |    -163     -48     10    112
grg  127|    0     3    -8     4    44    15   .05   21   20 |     -25      12     15    233
igr  n/a|    0     0    -3     5    12    -2   .02    4    4 |    -192     257     14    116
jpl   80|   -1     0     5    71    24    14   .24    9    9 |    1206     814     15    156
mit  350|    1    -1     2   -20   -25    -9  -.21   11   10 |    -182     462     39    414
ngs  229|    0     0    -5   -18    30   -19  -.07    9    8 |    -657     -79   1119   2052
sio  305|    0     1    -2    29   -18   -15  -.10   13   13 |     ---     ---    ---    ---

Table 2.1886.1   GPS week: 1886   Day: 1   MJD: 57447.000                            

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  245|   -1     0     0    15    -8    -1   .01   13   12 |    -827    -282     15    136
emr   80|    1     0     1   -12   -10   -41   .21   11   11 |    3642     521     15    138
esa  150|    0     1    -2   -28   -17    37  -.29   12   12 |    -650    1103      9    145
gfz  204|    0    -1     0    15    -9     5   .05   10   10 |    -664     484     11    115
grg  127|    3     3   -14   -10    83    27   .10   18   16 |     -22    -200     16    232
igr  n/a|    0     0    -2     2    30    -9  -.00    4    4 |    -240     -24     15     77
jpl   80|    0     0     3    56    20     7   .27    9    9 |    1784     465     14    143
mit  350|    1    -2     0   -24    14   -12  -.21   11   10 |     398    -490     39    317
ngs  224|    0     0     5    -6   -33    -7  -.07    9    8 |   -1035      54    803   2183
sio  305|   -1     2    -6   -30    12    14  -.14   13   13 |     ---     ---    ---    ---

Table 2.1886.2   GPS week: 1886   Day: 2   MJD: 57448.000                            

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  246|    0     0    -1     0   -21    14   .10   13   12 |   -1131     362     17    161
emr   80|    1    -2     3     6    -4   -31   .22   13   13 |    3943     642     15    146
esa  150|    0     0    -1   -32   -32    34  -.32   12   12 |    -823     926      9    142
gfz  207|    0     0     0    22    -7     7   .10   10    9 |    -388     132     12    137
grg  125|    1     2   -10     6    76    34   .16   18   16 |    -612     677     15    246
igr  n/a|    0     0    -3    13     0     8   .01    5    5 |    -384    -272     15     89
jpl   80|   -2     2     5    34    32   -21   .29   11   11 |    2233     265     15    144
mit  350|    1    -1     1     4   -17   -48  -.22   11   10 |     599     227     53    375
ngs  227|    0     0     0   -48    11    20  -.09    9    8 |   -1262     466    969   2432
sio  302|    0     0    -7    -1   -24    35  -.22   13   13 |     ---     ---    ---    ---

Table 2.1886.3   GPS week: 1886   Day: 3   MJD: 57449.000                            

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  246|    0     1    -1    43    -9    15   .02   12   11 |   -1213     340     12    126
emr   80|    1    -1     2     1    -3    -6   .18   11   11 |    4067    -357     17    150
esa  150|    0     0    -1   -41   -28    30  -.35   12   12 |      96    -354      9    147
gfz  209|    1     0    -1   -14    -8    19   .03   10    9 |    -603      92     10    104
grg  123|    0     0    -9    -7    36    28   .18   17   16 |     -66    -243     13    190
igr  n/a|    0     0    -3   -30    10    26  -.02    4    4 |   -1536   -1000     14     65
jpl   80|   -1     0     2     7     0   -12   .27   11   11 |    1495    -261     14    129
mit  350|    0    -2     0    31    13   -40  -.24   12   10 |    -366    -440     36    369
ngs  226|    0     0     2   -37     4   -26  -.06   10    9 |   -1214     353   1029   2072
sio  309|   -1     0    -3    16     5    20  -.13   13   12 |     ---     ---    ---    ---

Table 2.1886.4   GPS week: 1886   Day: 4   MJD: 57450.000                            

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  246|    0     0    -1    -6    42     5   .03   11   10 |    -887    -306     19    181
emr   80|    0     0     4    -2    17   -25   .18   11   11 |    3927    -526     14    141
esa  150|    0     0    -1     9   -18    42  -.32   11   11 |     391      26     10    174
gfz  206|    0    -1    -2     0   -10    15   .03   12   11 |     -56    -541     16    225
grg  126|    0     2    -8    26    -9    23   .11   16   16 |    -118     102     12    206
igr  n/a|    0     0    -4   -19     9    22   .00    4    4 |   -1957    -821     15     91
jpl   80|    1     0     3     0    54     4   .29   10   10 |    1677    -569     15    122
mit  350|    0     0     4    -8   -40   -27  -.26   11   10 |    -495     218     39    375
ngs  229|    0     0    -2     2     7    -9  -.09   10    9 |    -826    -325   1105   2207
sio  311|    0     0     1   -21   -87   -23  -.07   15   13 |     ---     ---    ---    ---

Table 2.1886.5   GPS week: 1886   Day: 5   MJD: 57451.000                            

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  246|   -1    -1    -1    30   -27   -25  -.01   13   11 |    -756    -170     14    136
emr   80|    0     2     0   -10   -27   -11   .16   10   10 |    3108     785     13    183
esa  150|    0     0    -5   -31   -23    46  -.33   11   10 |    -302     884      9    162
gfz  204|    1     0    -2     5   -12   -14   .03   11   10 |    -616     126     10    158
grg  123|    1     2    -2   -10    47    -2   .10   16   15 |    -330     191     13    229
igr  n/a|    0     0    -3    37   -18    -5   .01    4    4 |   -3179     803     15    109
jpl   80|   -1     0     3    19    35    55   .28    9    9 |     845     779     14    134
mit  350|    0    -1     1   -15    32   -36  -.26   11   10 |    -167      60     45    556
ngs  225|    0     0     2    -1   -15   -38  -.04   10    8 |    -730     -75    969   2132
sio  300|    0     0     0     0     0    26  -.13   13   11 |     ---     ---    ---    ---

Table 2.1886.6   GPS week: 1886   Day: 6   MJD: 57452.000                            

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  242|    0     0     2    -7    -8     1  -.07   12   10 |    -957     -86     17    133
emr   80|    0     0     0     5   -11    -8   .20   11   11 |    4015     492     14    164
esa  150|    0     0     0   -19   -14    31  -.34   11   11 |     555   -1557     11    205
gfz  205|    0    -1    -4     5   -29    -5   .05   11   11 |    -673     326     13    181
grg  126|    0     0    -8   -10     5    42   .17   16   15 |    -126      16     15    211
igr  n/a|    0     0    -1    39     5    -5   .01    5    5 |   -2372     539     14     65
jpl   80|   -1     1     3    50    48    72   .31   11   11 |    1675     579     16    130
mit  349|    1    -1     0   -10     6   -61  -.25   11   11 |     -45      33     41    579
ngs  227|    0     0     0   -58   -19    21   .01   10    9 |    -879     -78   1136   2673
sio  307|    0     0     5    39    23   -50  -.10   12   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 3.1886.0   GPS week: 1886   Day: 0   MJD: 57446.000                            

        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    8   12    7   15    5    8    4    8   13    3 |    34   33   33   30   29   31   34   29   31   37    31
   2  |   13   12    9   17   19    4   10   12   10   15    4 |    33   32   28   38   30   30   35   31   29   30    30
   3  |   11    9   12    9   19    5   10   12   10   14    4 |    39   38   36   36   32   35   38   36   36   33    35
  X4E |    1  ---  ---  ---  ---   37  ---  ---  ---  ---    0 |    45  ---  ---  ---  ---   54  ---  ---  ---  ---    43
   5  |    8   13    7    9   26    5   12   13   10   11    4 |    34   35   32   34   33   31   33   30   33   32    31
   6  |    7   11   12    7   15    3    8    8    7    9    3 |    37   35   34   33   32   33   36   32   33   34    33
   7  |    8   11   13   11   21    5    9   17    8   14    4 |    50   47   44   49   47   46   46   47   42   46    45
   8  |   11    6   12    8   21    5    7    9    7    9    3 |    37   36   34   34   34   32   35   33   33   35    33
   9  |    9    9   14    7   16    5    6    9    9   11    3 |    81   76   78   76   79   77   76   73   73   75    76
 X10  |   16   17    9  ---   57   10    8   26   15  ---    8 |    63   71   66  ---   57   64   68   82   64  ---    67
  11  |    8   11   17    7   23    6    8    7    9   10    3 |    49   51   44   47   53   45   48   46   49   49    47
  12E |   17   14    7   15   26    4   13   12   10   14    5 |    41   36   31   33   34   32   36   31   29   35    32
 X13  |  203  ---  ---  233  136  308  ---  130    4  ---    0 |  9999  ---  ---  470  155  428  ---  249  225  ---   367
  14  |   11   10   12   13   21    4    9   11    9   16    4 |    39   39   37   38   45   38   38   43   37   44    38
  15  |    8   13   11   12   17    4   13   10   10   14    4 |    30   33   32   28   22   27   27   24   26   21    28
  16  |   27   11    8   15   22    7    9   13   10   16    5 |    99   94   97   91   91   92   92   94   93   96    93
  17  |   12   12   13   11   14    6    9   13   10   15    4 |    40   38   34   39   35   34   40   39   34   35    36
  18  |   11   11    8   12   25    5    9   11    7   11    4 |    37   38   33   37   45   34   37   38   35   35    36
 X19  |   11   12   11   13   15    8   10   16   11  ---    4 |    38   40   35   41   36   34   43   41   36  ---    37
  20  |    8    8    9    7   20    4    9    9    8    8    3 |    53   52   53   52   53   50   52   50   50   50    51
  21  |   11   11    7    9   24    2    9   11    8   12    3 |    32   32   30   34   30   30   32   30   30   30    30
  22  |   16   10    8    6   29    4    8   10   10   15    4 |    31   30   26   26   31   27   29   28   30   25    27
  23  |   12   10   12   10   24    4    9   18   13   18    4 |    45   43   42   42   42   41   44   37   39   38    40
  24  |   13    9   14    6   24    4   10   11    5   12    4 |    32   29   29   30   36   28   30   31   28   31    28
  25E |   11    7   11    8   14    4    9    8    7   11    3 |    38   36   36   36   34   34   36   34   33   36    34
  26E |   12   10   13    9   25    5    9   10   11   11    4 |    35   34   37   34   31   34   34   32   31   30    32
  27  |   10    7   13    7   20    4    6    7    5    8    3 |    35   38   34   34   36   33   38   34   33   33    34
  28  |   16   14   10   10   16    4    7   13    6   12    4 |    69   70   69   70   71   67   69   62   68   68    67
  29  |   15   12    9   17   20    4   10   13   11   22    5 |    38   36   31   42   35   33   37   33   34   41    34
  30  |    9   10   13    9   18    4    7   11    6   11    3 |    40   40   39   40   39   38   39   35   37   36    37
  31  |   10   13   11   12   23    4   11   13    8   16    4 |    38   42   35   40   39   37   43   38   35   37    37
 X32  |   17  ---   12   22  ---    8  ---   13   13  ---    8 |    30  ---   25   27  ---   24  ---   33   26  ---    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11   11   10   21    4    9   11    9   13      |T   43   43   40   55   45   52   42   47   45   40    50
 WRMS |   11   11   11   10   20    4    9   10    8   13      |NE  39   40   36   60   44   55   40   47   45   38    53
 MEDI |   11   11   11    9   21    4    9   11    9   12      |MD  38   38   34   37   36   34   38   35   34   35    35

Table 3.1886.1   GPS week: 1886   Day: 1   MJD: 57447.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   10   12    9   12    5   10    5    7   12    3 |    28   28   32   23   30   26   31   23   25   29    26
   2  |   11   11    7   13   14    5   10   13    8   16    4 |    29   32   26   30   23   26   29   29   29   26    27
   3  |   13   10   11    8   13    4    9    9    7   10    3 |    31   35   35   29   33   31   37   25   32   34    31
  X4E |    1  ---  ---  ---  ---   31  ---  ---  ---  ---    0 |    48  ---  ---  ---  ---   39  ---  ---  ---  ---    48
   5  |   12   11    9    9   22    5   12   12    7   11    4 |    32   30   25   26   29   25   30   25   28   28    26
   6  |    9   17   12    6   15    4    8    7    7    9    3 |    24   28   27   22   23   23   26   22   24   25    23
   7  |    7    8   13    8   16    6    7   16    7   15    4 |    37   37   35   33   37   33   36   32   32   36    33
   8  |   11    7   14    9   14    5    7    8    7    8    3 |    28   30   29   24   28   24   30   25   26   26    26
   9  |    7    7   13    7   14    5    6   14    6   15    3 |    44   45   44   41   47   43   45   40   44   46    42
 X10  |   18   13    9  ---   57   11    9   27   16  ---    8 |    64   71   64  ---   55   62   67   76   60  ---    65
  11  |   10   10   18    8   22    5    8    7   10   11    4 |    31   35   33   30   39   30   34   30   35   32    32
  12E |   19   15    6   14   24    4   14   12   13   13    5 |    38   33   30   31   29   30   35   26   32   28    29
 X13  | >>>>  ---  ---    1  ---  612  ---  ---  ---  ---    0 |  9999  ---  ---  764  ---  516  ---  ---  ---  ---   741
  14  |   11   11   11   16   19    5    9   12    9   16    4 |    36   37   35   39   38   36   36   34   31   36    34
  15  |    9   13    9   15   14    4   12   10   10   16    4 |    24   27   25   22   15   20   25   19   23   18    21
  16E |   22   10    9   15   31    6    9   13   10   16    5 |    46   42   40   39   51   40   41   41   41   42    40
  17  |   15   12   12    9   13    4    9   12    8   12    4 |    28   28   26   27   24   24   28   23   25   24    24
  18  |   17    8    8   10   21    5   11   12    9   11    4 |    37   31   28   31   33   29   33   31   28   27    29
  19  |   13   11   12   11   13    5   10   15    8   17    4 |    26   31   26   28   24   26   30   31   28   36    26
  20  |   13    7    5    9   19    4   10    9    7    8    3 |    62   62   59   60   59   59   61   61   61   57    60
  21  |   13   11   10   12   18    4    8   10   10   11    4 |    29   28   22   27   25   23   29   25   25   22    24
  22  |   15   10    8    9   25    4    8    9    8   11    4 |    31   27   25   25   34   25   26   24   24   27    25
  23  |   10   10   11   11   17    5    9   16   12   20    4 |    31   34   33   29   35   29   36   28   30   34    30
  24  |    9   10   14    9   17    4    8   10    6   10    3 |    28   30   26   28   26   27   28   24   27   26    26
  25E |   12    9   12    7   16    4    9    8    8   10    3 |    33   32   32   32   27   30   31   28   32   27    30
  26E |   16   10   16   10   17    4    8    8    9   11    4 |    29   29   31   25   25   26   29   23   27   24    26
  27  |    9    7   16    7   12    4    6    7    6    6    3 |    29   31   30   28   28   28   31   26   32   26    28
  28E |   12   14    8    8   16    4    7    9    8   10    3 |    35   37   32   36   40   36   37   36   36   38    35
  29  |   17   13   12   13   15    3   12   15   11   22    5 |    40   37   33   37   28   32   37   36   33   41    34
  30  |   11   10   12   10   17    4   10   12    7   10    3 |    32   30   31   28   30   29   31   27   28   29    28
  31  |   11   11   13   10   21    3   11   10    9   14    4 |    35   39   31   33   38   33   38   28   34   29    32
 X32  |   17  ---   16   27  ---   11  ---   15   19  ---    9 |    32  ---   29   39  ---   26  ---   28   19  ---    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   11   12   10   18    4    9   11    9   13      |T   34   35   32   55   32   46   34   30   31   31    53
 WRMS |   12   11   12   10   16    4    9   10    8   13      |NE  31   32   30   66   29   52   32   27   28   30    64
 MEDI |   12   10   12    9   17    4    9   10    8   11      |MD  32   32   31   29   30   29   31   28   29   28    29

Table 3.1886.2   GPS week: 1886   Day: 2   MJD: 57448.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   10   12    8   11    3   12    6    8   12    3 |    27   29   30   22   27   26   34   24   26   29    26
   2  |   12   14    9   14   14    4   10   11    9   13    4 |    29   32   25   29   27   26   31   27   29   26    27
   3  |   11   20   12    7   19    5   12    7    6    9    4 |    35   39   37   32   40   33   39   33   34   36    35
  X4E |    2  ---  ---  ---  ---   28  ---  ---  ---  ---    0 |    39  ---  ---  ---  ---   43  ---  ---  ---  ---    39
   5  |    9   14   10    8   25    3   15   11    8   10    4 |    32   31   26   30   33   28   32   25   29   32    28
   6  |    8   20   13    8   16    4    9    6    6   12    4 |    30   34   29   23   29   28   32   25   27   32    27
   7  |    9    9   14    7   18    6    8   13   11   13    4 |    33   33   30   30   41   30   35   27   26   29    29
   8  |   12    9   14    8   13    5    7   10    6    9    3 |    30   35   30   29   32   29   33   32   27   31    30
   9  |    6    9   14    6   15    4    8   11    8   15    3 |    42   44   41   43   48   40   45   39   39   44    41
 X10  |   21   11   10  ---  101    9   11   23   15  ---    7 |    62   68   61  ---   84   59   65   76   60  ---    64
  11  |   11   13   19    8   17    6    9    8   12   10    4 |    41   43   35   39   43   38   46   38   42   35    39
  12E |   23   15    7   12   29    5   13   12   11   13    5 |    42   39   32   31   36   34   36   30   29   34    32
 X13  |    9   13   10   10  ---    6   10   11    8  ---    4 |  9999   35   33  198  ---  159   35  182  169  ---   207
  14  |   13   17   12   15   17    5   12   10    8   16    4 |    37   34   32   35   36   33   31   28   30   35    31
  15  |   11   15   12   11   13    3   15   12    9   17    4 |    28   33   30   27   16   27   26   25   29   19    28
  16E |   19   12    8   15   17    4   12   10    9   15    4 |    52   48   47   45   46   46   50   46   45   48    47
  17  |   12   12   13   12   10    5    9   13   10   13    4 |    27   32   26   29   27   24   31   28   27   28    26
  18  |   13   13    8    9   23    5   15   11    9   11    4 |    48   46   42   42   46   44   46   45   46   44    44
  19  |   13   12   11   12   11    5   11   14    9   17    4 |    29   32   27   26   29   26   34   31   28   19    27
  20E |   16    9   10    8   20    6   13    9    8    8    4 |    85   81   79   85   81   80   80   81   82   83    80
  21  |   13   12    9   11   15    2   11    9    7   12    3 |    30   29   24   28   27   25   28   25   27   25    26
  22  |   13   12    9    9   20    4   10   10    8   12    4 |    34   37   28   27   34   29   35   29   32   31    31
  23  |   11   13   13   10   23    6    9   17   11   20    5 |    32   36   34   34   39   30   35   27   27   33    31
  24  |   11   10   15    8   16    4    9    9    6   10    3 |    28   29   24   26   32   27   28   26   25   29    25
  25E |   16   11   14    6   20    6   10    6    5   10    3 |    34   34   31   28   29   31   31   26   28   29    29
  26E |   14   12   14   11   16    4   10   10    9   14    4 |    27   29   30   25   24   27   28   26   27   27    26
  27  |   10    8   15   10   13    4    6    8   12   10    3 |    31   37   31   32   34   31   37   32   38   32    33
  28E |   15    9    8   10   18    3   10    9    6   12    3 |    49   51   46   46   58   48   52   51   50   55    50
  29  |   14   13   12   11   15    5   13   13   11   20    4 |    38   36   30   34   26   30   36   32   31   38    32
  30  |   14    9   13    8   15    5   10   11    8    9    3 |    30   31   29   26   35   28   34   28   27   28    28
  31  |   14   12   12   10   20    5   12   10    9   17    4 |    34   35   27   31   41   30   36   25   29   30    29
 X32  | >>>>  ---  ---   19  ---   33  ---   18  151  ---   18 |     1  ---  ---    1  ---    1  ---    1    1  ---  9999
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   13   12   10   18    5   11   11    9   13      |T   36   38   34   37   37   37   38   37   37   34    40
 WRMS |   12   13   12    9   16    5   11   10    8   13      |NE  30   34   29   37   32   34   34   35   35   30    39
 MEDI |   12   12   12   10   17    5   10   10    9   12      |MD  33   35   30   30   34   30   35   28   29   31    31

Table 3.1886.3   GPS week: 1886   Day: 3   MJD: 57449.000                            

        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   12   11    8   14    3   10    5    8   11    3 |    42   43   42   39   43   41   42   39   39   42    40
   2  |   12   12   11   15   17    3   12   12   11   15    4 |    41   42   40   43   40   39   41   37   40   36    38
   3  |    9   14   12    8   12    3   10    7    9    7    3 |    46   49   48   46   45   47   44   45   48   48    46
  X4E |    3  ---  ---  ---  ---   24  ---  ---  ---  ---    0 |    49  ---  ---  ---  ---   54  ---  ---  ---  ---    49
   5  |    8   12   11    8   18    4   15   11    9   12    4 |    42   43   39   39   39   40   43   39   39   40    39
   6  |    9   13   13    8   17    5    8   13    9   13    4 |    42   44   42   40   38   41   42   40   43   41    40
   7  |    8   10   14    8   15    4    9   14   10   13    4 |    49   52   47   49   47   48   48   45   46   46    47
   8  |    9    8   14    6   14    4    7    7    7    8    3 |    42   45   42   41   41   41   43   40   40   40    41
   9  |    8    9   12    5   14    4    8   13    8   11    3 |    53   54   50   52   53   53   52   52   51   52    51
 X10  |   13   11    7  ---  122    9   11   23   14  ---    6 |    80   81   79  ---  105   79   84   89   75  ---    81
  11  |    8   13   17    8   18    5    9    7   11    8    4 |    50   54   47   50   53   50   50   47   51   47    49
  12E |   23   15    9   12   20    4   12   14   12   12    5 |    46   43   40   42   42   42   40   39   40   42    40
  13  |    8   12   14   13   22    5   10   12   11   14    4 |   844   33   26  132  124  111   33   86   84   17   138
  14  |   10   13   11   10   16    4   10   11   10   15    4 |    44   46   43   46   51   45   47   47   45   46    45
  15  |    8   13   15   10   14    4   12   12   12   18    4 |    24   28   29   24   18   24   24   21   23   16    23
  16E |   23   12    9   15   19    4   12   14   11   17    5 |    53   50   48   45   52   48   51   47   43   47    46
  17  |   12    9   12   11   12    6   11   12   10   14    4 |    43   46   43   47   42   43   47   42   44   42    43
  18  |   11   11    9    9   23    6   13   11   10   11    4 |    50   47   46   48   57   48   49   47   48   46    48
  19  |   12   10   11   12   14    5   12   13   12   16    4 |    42   45   41   45   41   41   47   42   41   34    41
  20E |    9    9    9    8   15    4   11   12    7    8    3 |    61   62   60   60   58   61   59   60   62   58    60
  21  |   12   10   11   10   19    4   14   11   11   15    4 |    42   42   40   42   45   40   44   37   39   38    39
  22  |   17   10    7    9   22    4    9    9   10   10    4 |    39   39   35   37   45   38   37   36   39   37    37
  23  |   12   10   11   10   17    4    9   20   13   19    4 |    48   50   46   47   48   47   48   42   46   43    45
  24  |   11    7   16    6   16    4    7   12    8    9    3 |    35   36   35   35   38   36   35   37   36   37    35
  25E |    9    8   14    7   15    5    9   12    9   12    3 |    40   40   42   43   43   42   42   41   41   41    40
  26E |   16    9   16   11   16    5   10    9   10   12    4 |    43   42   44   40   38   41   41   37   36   37    39
  27  |    7    6   14    5   14    4    7    6    8    4    2 |    44   44   41   44   43   42   43   40   39   40    41
  28E |   13   10    7    8   19    4    9    9    9    8    3 |    50   50   49   49   50   49   52   46   49   48    48
  29  |   13   12   14   12   16    5   13   14   11   21    5 |    42   44   41   46   44   42   44   42   44   47    42
  30  |    9   10   14    8   15    3   10   11    7    7    3 |    37   42   40   38   40   38   40   36   39   36    38
  31  |   13   11   14    9   20    4    9   11    9   13    4 |    44   45   39   43   50   43   47   38   41   39    41
 X32  |    3  ---  ---  ---  ---   40  ---  ---  ---  ---    0 |     1  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11   12   10   17    4   11   12   10   13      |T   69   46   43   46   49   46   45   44   45   40    46
 WRMS |   11   11   12    9   16    4   11   10    9   12      |NE  80   43   40   47   47   45   43   42   43   38    46
 MEDI |    9   10   12    9   16    4   10   12   10   12      |MD  43   44   42   44   44   42   44   41   41   41    41

Table 3.1886.4   GPS week: 1886   Day: 4   MJD: 57450.000                            

        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  |    8   10   10   10   12    4    9    5    8   13    3 |    38   36   37   38   36   35   38   32   35   38    35
   2  |    9   13    8   18   14    4   11   11   10   18    4 |    30   33   30   37   27   29   33   29   25   25    28
   3  |    9   10   10   10   12    4    9    9    8   13    3 |    38   39   41   38   37   38   39   36   39   38    37
  X4E |    2  ---  ---  ---  ---   27  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---   36  ---  ---  ---  ---    37
   5  |    9   14    9   10   18    5   14   10    8   16    4 |    42   38   36   40   41   39   36   38   39   35    37
   6  |   11    9   12   10   13    4    6    7   10   11    3 |    32   32   34   32   27   31   32   28   29   30    30
   7  |    9   11   13   12   15    2    9   12   13   15    4 |    40   41   36   38   41   36   40   34   35   32    36
   8  |    8    8   11    7   20    5    7    9   12   12    3 |    33   37   33   34   34   33   36   32   38   34    33
   9  |    8   13   12   11    9    5    7    9    9   17    3 |    39   37   35   38   39   36   36   33   37   36    35
 X10  |   19   15   10  ---   58   11    8   22   13  ---    9 |    70   79   75  ---   82   74   76   82   72  ---    74
  11  |    9   10   16    8   19    5    8    6    7   10    3 |    45   46   40   43   49   40   46   40   43   42    42
  12E |   17   13    7   15   20    3   13   12   11   16    5 |    41   38   31   35   32   33   35   33   33   32    33
  13  |    9   12   10   16   15    3   11   13   12   15    4 |   676   34   31   82   67   86   33   78   75   19    77
  14  |   10    9   11   15   17    4   10   11   10   15    4 |    39   36   37   44   37   38   36   35   36   38    36
 X15  |    9   11   13   12  ---    5  ---   12   10  ---    5 |    37   39   37   40  ---   33  ---   30   33  ---    34
  16E |   20   11    9   16   20    4   10   14   11   17    5 |    46   40   41   40   44   40   38   36   38   37    39
  17  |   10   12   12   12   12    5   10   14   10   14    4 |    37   37   35   38   34   35   39   36   35   33    34
  18E |   12   11    8   13   22    4   11   12    9   12    4 |    64   62   60   67   71   65   63   66   68   63    64
  19  |    9   11   13   13   13    6   11   14   12   17    4 |    33   36   34   35   29   33   36   34   32   27    31
  20E |    8    9    8    9   21    5   12   13    9   11    4 |    39   38   36   39   36   35   36   37   35   32    36
  21  |   15    8   10   13   17    4    8   10   11   14    4 |    38   34   31   34   30   31   34   31   30   29    31
  22  |   10   15    8    9   19    4    8   10    9   12    4 |    42   43   40   45   48   42   43   44   41   41    42
  23  |    9   10   12   14   19    5   10   22   12   20    5 |    39   41   38   37   39   36   40   31   34   30    35
  24  |    9    8   16    9   12    3    8   10    6   11    3 |    33   33   32   34   35   31   33   31   28   29    31
  25E |   11   10   14    7   14    5   11    8    9   13    3 |    31   34   34   33   32   30   32   30   31   28    30
  26E |   17   11   15   12   15    4    9    7   10   13    4 |    34   35   39   35   33   34   31   32   33   29    32
  27  |    8   10   13    8   14    3    7    8    9    7    3 |    33   38   34   37   35   33   35   35   35   29    34
  28E |    9   13    6    9   18    4    5    9    9   10    3 |    39   39   35   36   45   38   39   33   40   31    36
  29  |   12   14   11   14   15    4   10   13   12   27    5 |    36   38   30   37   29   31   35   32   31   39    31
  30  |    9   10   14    6   10    3    7   11    8    9    3 |    34   35   33   34   36   33   35   31   33   28    32
  31  |   12   10   11   11   19    4   10   12   10   14    4 |    36   38   31   35   35   32   38   29   33   26    31
 X32  |   19  ---  ---   29  ---   27  ---   12   19  ---   11 |  9999  ---  ---    1  ---    1  ---    1    1  ---  9999
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11   11   12   16    4   10   11   10   15      |T   59   39   37   38   40   37   38   36   37   33    37
 WRMS |   10   11   11   11   16    4   10   10    9   13      |NE  69   36   34   37   36   34   36   33   33   31    35
 MEDI |    9   11   11   11   15    4    9   11   10   13      |MD  38   38   35   37   36   35   36   33   35   32    35

Table 3.1886.5   GPS week: 1886   Day: 5   MJD: 57451.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   12   15   11    9   13    3    9    7    9   11    3 |    31   34   29   28   31   27   33   23   26   30    28
   2  |   11   12    8   15   12    5   10   11   11   16    4 |    29   28   24   28   25   25   29   24   26   21    24
   3  |    6   12   11    9   23    4    9    9    7   10    3 |    65   65   64   60   64   63   63   59   61   63    62
  X4E |    3  ---  ---  ---  ---   50  ---  ---  ---  ---    0 |    32  ---  ---  ---  ---   56  ---  ---  ---  ---    30
   5E |   10   12    8   10   26    7   12   14   10   10    4 |    47   46   42   46   47   47   45   48   46   45    45
   6  |    8   11   12    9   12    5    7    8    6   12    3 |    28   26   29   26   25   27   29   22   27   27    26
   7  |    9   10   11   10   13    4    9   11    9   15    3 |    45   41   37   41   41   41   43   34   40   34    38
   8  |    9    7   11    6   16    4    7    9    8    9    3 |    28   32   27   28   32   28   31   26   28   27    28
   9  |    7    8   12    7   10    5    7    7   10   14    3 |    42   44   40   42   45   43   46   39   43   44    42
 X10  |   15   13    7  ---   66   10    8   20   15  ---    6 |   135  140  137  ---  124  138  136  143  131  ---   137
  11  |   11    9   17   10   18    3    8    7   10   10    4 |    40   41   35   41   47   36   43   32   37   34    37
  12E |   20   15    7   16   20    5   13   12   13   14    5 |    35   33   26   35   30   29   32   28   32   30    29
  13  |    9   11   11   11   13    4   10   11   13   12    4 |   863   32   26   82   60   73   31   57   57   18    85
  14  |   11    9   11   12   15    4    8   11   11   14    4 |    30   29   27   33   29   27   28   26   27   28    27
 X15  |    3  ---  ---  ---  ---   47  ---  ---  ---  ---    0 |    13  ---  ---  ---  ---   15  ---  ---  ---  ---    12
  16E |   23    9    6   17   18    6    9   16   11   15    5 |    41   34   32   34   36   34   35   34   35   33    32
  17  |   11   12   12   13   13    3   10   13    9   14    4 |    32   34   27   34   34   30   36   29   32   27    30
  18E |   17   11    6   12   14    5    8   11    9    9    4 |    46   41   35   43   37   39   40   38   39   37    38
  19  |   13   11   13   13   12    4   11   14   13   19    4 |    30   33   27   29   29   28   36   29   32   25    28
  20E |   11    8    7    9   16    4    9   11    8    7    3 |    43   43   38   41   39   42   40   40   43   37    40
  21  |   14    9   10   10   17    4    8   11    9   14    4 |    30   27   23   28   30   25   28   23   23   22    24
  22E |   15    8    7   10   18    4    8   12    8    9    3 |    32   23   22   32   29   26   28   25   27   26    24
  23  |   12   10   11   13   15    5   10   21   10   19    5 |    34   35   29   31   32   31   36   24   31   25    29
  24  |   10    8   13    8   11    4    7    7    5    9    3 |    28   27   25   28   26   26   27   24   25   21    25
  25E |   15    9   14    8   19    5   11    7    9   10    4 |    28   29   30   29   25   27   30   25   26   22    26
  26E |   15    9   14    9   18    5    8    7    7   10    3 |    30   29   34   31   30   30   29   26   27   24    28
  27  |    9    8   12    5   14    4    6    6    8    9    3 |    28   31   27   29   32   29   32   27   29   26    28
  28E |   13    9    6    9   14    4    7   12    8   11    3 |    30   31   25   28   36   29   32   29   32   25    29
  29  |   13   14   13   12   16    4   11   15   12   22    5 |    32   32   24   29   26   26   29   24   26   32    26
  30  |   10   10   12    7    9    4    7   12    9    8    3 |    37   36   35   35   34   36   37   30   36   30    34
  31  |   12   11   12    8   21    4   11   12    9   16    4 |    35   36   28   34   36   31   37   26   29   28    30
 X32  |   18  ---   14   25  ---   15  ---   11   16  ---    8 |     1  ---   57 9999  ---    1  ---    1    1  ---  9999
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   10   11   11   16    4    9   11   10   13      |T   62   38   35   35   38   36   38   33   35   30    36
 WRMS |   11   10   10   10   15    4    9   10    8   11      |NE  71   33   30   34   34   30   33   27   30   27    31
 MEDI |   11   10   11   10   15    4    9   11    9   11      |MD  32   33   29   32   32   29   33   27   31   27    29

Table 3.1886.6   GPS week: 1886   Day: 6   MJD: 57452.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   12   10   11    9   10    6   10    6    9   10    3 |    38   37   38   34   36   36   38   34   37   38    36
   2  |   10   15    8   15   16    5    9   10    8   13    4 |    33   36   32   37   30   31   36   33   31   31    32
   3E |   11   10   11    9   15    5   10    8    9    7    3 |    58   63   66   60   58   61   60   58   61   64    61
  X4E |    2  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---   48  ---  ---  ---  ---    43
   5E |   13   13    8   11   17    5   15   14    9   10    4 |    53   50   46   52   50   49   50   47   47   51    48
   6  |    6   12   12   11   12    4   10    7    7   11    3 |    34   35   38   31   35   34   38   33   32   38    34
   7  |   11    9   11    9   14    4    9   11    8   13    3 |    48   50   48   50   54   48   52   46   47   44    47
   8  |    7    7   12    6   14    5    8    7   12    7    3 |    35   41   37   38   42   36   40   39   39   37    38
   9  |    8   10   13    9   12    5    8    6   10   10    3 |    49   50   47   54   54   50   52   47   49   49    49
 X10E |   16    8   10  ---  135    6   11   14    9  ---    5 |   151  158  158  ---  166  157  158  166  152  ---   157
  11  |    9   11   18    7   18    4    8    7   10    7    3 |    52   56   47   51   60   51   55   49   57   50    52
  12E |   15   15    6   13   31    3   14   12   11   12    5 |    46   48   41   45   45   43   48   39   42   43    43
  13  |    7   11   10   13   17    4   12   11   11   11    4 |   786   32   26   86   70   81   32   74   72   18    93
  14  |   12   10   12   12   14    2   11   13   11   17    4 |    44   45   43   52   49   47   46   46   45   45    45
 X15  |    9   13   12   18   13    6   12   15   12  ---    5 |    15   17   15    5    3   14   16    3    4  ---    11
  16E |   18   12    6   16   16    6   13   13   11   16    4 |    53   50   48   46   50   46   48   46   44   46    47
  17  |    7   13   13   11   11    6   10   12    8   12    4 |    39   44   40   42   41   40   45   44   43   42    42
  18E |   18   12    5   14   17    5   13   14   10   10    4 |    57   53   51   58   59   56   53   58   54   55    54
  19  |    8   11   12   15   12    5   14   13   10   15    4 |    34   38   33   37   34   34   39   39   35   29    35
  20E |   10    9    7   11   20    4   12   10    7    6    3 |    48   48   43   49   46   48   48   47   47   49    47
  21  |   16   11   10   13   16    4   13   13   10   15    4 |    41   39   33   39   40   36   38   39   37   34    36
  22E |   18    9    7   11   17    5    9   10   10    8    4 |    41   40   37   39   46   39   38   40   40   41    39
  23  |   13   11   11   13   17    5   12   22   13   16    5 |    43   45   42   44   44   42   44   38   42   38    41
  24  |   10    9   15   11   16    3    9    7   10    7    3 |    32   35   34   38   40   33   38   33   33   33    34
  25E |   10    9   17   14   15    4   10    7   10    8    4 |    37   37   44   38   39   36   38   33   35   33    36
  26E |   16   14   15   11   17    6    9    9    8    9    4 |    38   41   42   34   33   36   37   36   37   32    36
  27  |    5    7   13    7   13    5    7    6    7    6    3 |    40   43   41   43   45   41   42   42   42   41    42
  28E |   10   12    6   11   19    6   10   13    9    8    4 |    40   40   39   39   49   41   42   40   40   40    39
  29  |   14   13   11   10   15    5   16   16   11   20    5 |    42   42   38   42   38   41   43   42   41   46    40
  30  |    8    9   12    6   12    4    8   10    7    7    3 |    36   43   40   39   44   38   43   38   38   37    39
  31  |   10   15   13    9   20    4   11   11   12   15    4 |    41   46   37   41   48   39   46   35   42   35    39
 X32  |   22  ---   15   29  ---    7  ---   12   15  ---    9 |  9999  ---   60    1  --- 9999  --- 9999    1  ---  9999
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11   11   11   16    5   11   11   10   12      |T   69   46   44   42   48   46   46   45   44   40    46
 WRMS |   10   11   11   11   15    5   11   11    9   11      |NE  78   40   38   40   42   40   41   39   38   38    41
 MEDI |   10   11   11   11   16    5   10   11   10   10      |MD  41   43   41   41   45   41   43   40   42   40    41



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 4.1886   GPS week: 1886   MJD: 57446.0-57452.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2984 |U    4     5    12 |U   15    16    39 |U    6     6    16 |
emr | emr 2837 |     6     6    14 |U   15    16    41 |     8     8    20 |
esa | esa 2893 |     5     5    14 |U   15    15    42 |     8     8    19 |
gfz | gfz 2833 |U    4     5    12 |U   15    15    42 |U    7     8    17 |
grg | grg 2819 |U    7     7    16 |U   15    16    44 |    10    11    20 |
igr | igr 2895 |     4     5    11 |    15    15    40 |     7     7    16 |
igs | igs 2919 |     4     5    11 |    15    15    41 |     7     8    17 |
jpl | jpl 2825 |     6     7    15 |U   15    15    41 |     9     7    21 |
mit | mit 2934 |     5     6    14 |U   17    17    47 |U    7     8    17 |



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 5.1886.0   GPS week: 1886   Day: 0   MJD: 57446.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3001 |     3     5    11 |     7    14    24 |     6     8    15 |
emr | emr 2784 |     4     6    13 |     7    16    29 |     9     9    21 |
esa | esa 2880 |     4     5    14 |     7    15    27 |     9     9    21 |
gfz | gfz 2843 |     4     4    12 |     8    14    27 |     8    11    17 |
grg | grg 2843 |     9     7    14 |     9    15    28 |    11    11    20 |
igr | igr 2939 |     4     5    11 |     7    14    26 |     8     8    15 |
igs | igs 2939 |     4     5    11 |     7    15    26 |     8     9    17 |
jpl | jpl 2784 |     6     9    17 |     8    18    33 |    11     7    22 |
mit | mit 2976 |     4     4    12 |     9    19    27 |     7     8    16 |

Table 5.1886.1   GPS week: 1886   Day: 1   MJD: 57447.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2962 |     3     4    10 |    12    19    49 |     6     5    16 |
emr | emr 2784 |     5     4    12 |    14    20    55 |    10     8    28 |
esa | esa 2880 |     4     4    11 |    15    20    58 |     8     7    23 |
gfz | gfz 2807 |     4     4     8 |    14    18    59 |     8     7    20 |
grg | grg 2784 |     7     5    16 |    15    22    60 |     9    10    21 |
igr | igr 2880 |     3     3    10 |    15    19    55 |     7     6    19 |
igs | igs 2880 |     3     3     8 |    15    19    55 |     8     6    21 |
jpl | jpl 2784 |     4     5    13 |    15    20    53 |    10     7    27 |
mit | mit 2880 |     9    11    16 |    15    22    59 |     9    11    21 |

Table 5.1886.2   GPS week: 1886   Day: 2   MJD: 57448.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2938 |     5     6    14 |    11    10    37 |     5     5    15 |
emr | emr 2880 |     7     6    15 |    13    12    44 |     8     8    20 |
esa | esa 2880 |     6     5    14 |    11    10    41 |     7     7    20 |
gfz | gfz 2856 |     5     7    12 |    12    10    48 |     6     8    15 |
grg | grg 2784 |     7     6    15 |    14    15    42 |     9    10    23 |
igr | igr 2880 |     6     5    12 |    12     9    40 |     5     6    17 |
igs | igs 2930 |     6     5    12 |    12    10    42 |     6     7    17 |
jpl | jpl 2880 |     6     6    15 |    13     9    47 |     8     8    21 |
mit | mit 2976 |     6     5    15 |    21    19    63 |     7    10    17 |

Table 5.1886.3   GPS week: 1886   Day: 3   MJD: 57449.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3053 |     5     5    16 |    18    16    43 |     6     6    11 |
emr | emr 2872 |     7     7    18 |    18    16    44 |     7     7    16 |
esa | esa 2880 |     6     6    18 |    18    17    48 |     7     8    15 |
gfz | gfz 2784 |     5     5    14 |    18    16    46 |     7     8    14 |
grg | grg 2880 |     6     8    18 |    16    14    54 |     9     8    15 |
igr | igr 2880 |     5     6    14 |    18    15    47 |     6     6    11 |
igs | igs 2880 |     5     6    15 |    17    15    47 |     6     7    12 |
jpl | jpl 2880 |     6     7    18 |    17    16    45 |     9     8    17 |
mit | mit 2880 |     4     5    14 |    18    18    51 |     6     6    11 |

Table 5.1886.4   GPS week: 1886   Day: 4   MJD: 57450.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     4     5    11 |    23    18    49 |     7     7    20 |
emr | emr 2879 |     6     5    14 |    21    21    48 |     9     8    22 |
esa | esa 2880 |     4     5    13 |    22    18    50 |     8     7    22 |
gfz | gfz 2880 |     5     5    11 |    20    18    45 |     7     7    21 |
grg | grg 2784 |     7     7    15 |    20    17    49 |    10    11    22 |
igr | igr 2880 |     4     5    10 |    21    19    46 |     7     7    19 |
igs | igs 2954 |     4     5    10 |    22    19    50 |     8     8    20 |
jpl | jpl 2784 |     6     7    13 |    22    16    49 |     9     7    20 |
mit | mit 2976 |     4     4    12 |    22    19    50 |     7     9    20 |

Table 5.1886.5   GPS week: 1886   Day: 5   MJD: 57451.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2937 |     4     4    11 |    13    15    31 |     6     6    14 |
emr | emr 2784 |     6     7    14 |    13    15    31 |     7     5    16 |
esa | esa 2880 |     5     5    14 |    12    13    32 |     7     6    14 |
gfz | gfz 2784 |     4     4    11 |    12    15    31 |     6     5    13 |
grg | grg 2784 |     5     8    15 |    13    14    38 |     9     9    17 |
igr | igr 2836 |     4     5    11 |    12    13    31 |     6     5    13 |
igs | igs 2880 |     4     5    11 |    12    14    31 |     5     5    12 |
jpl | jpl 2784 |     5     8    14 |    11    13    28 |     8     5    17 |
mit | mit 2880 |     4     6    14 |    12    13    35 |     5     6    12 |

Table 5.1886.6   GPS week: 1886   Day: 6   MJD: 57452.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     5     6    12 |    20    19    43 |     7    10    19 |
emr | emr 2879 |     7     8    13 |    19    16    37 |     9    10    20 |
esa | esa 2976 |     5     6    13 |    20    15    36 |     9    12    19 |
gfz | gfz 2880 |     5     6    13 |    19    13    37 |     8    11    21 |
grg | grg 2880 |     8     8    21 |    17    16    35 |    13    16    26 |
igr | igr 2976 |     5     6    11 |    19    17    35 |     8    10    20 |
igs | igs 2976 |     5     6    12 |    19    14    34 |     8    11    20 |
jpl | jpl 2880 |     6     8    16 |    18    12    36 |    10    10    22 |
mit | mit 2976 |     8     9    16 |    20    13    40 |     8    10    23 |


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 6.1886   GPS week: 1886   MJD: 57446.500-57452.500

                                                         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 |       4      -4     -29      61     -1 |      24     46
            |      24      17      72      99      7 |       6
emr   uuuuu |      31     -24      68     189     -2 |      30     47
            |      25      23     123      45      5 |       7
esa   uuuuu |      19      26      52      54     -2 |      37     52
            |      11      19      31      59      4 |       6
gfz   uuuuu |     -12     -31     205    -108      4 |      18     40
            |      21      14      56     137      3 |       5
grg   uuuux |     -28      -1      31    -136     25 |      47     58
            |      32       9      90      69     33 |       4
igr   xxxxx |      -3      -1      57      63      0 |       2     38
            |      29      24      82      79      4 |       5
irf   xxxxx |      19      -1     -16     -21     -1 |       1     38
            |       7       9      35      29      5 |       6
jpl   uuuuu |     -16     -32      50     103      8 |      38     53
            |      28      35     131      73      7 |       4
mit   uuuuu |      11      19     -81     -67     -1 |      18     41
            |      20      12      74      54      4 |       5
ngs   uuuuu |     -12      25    -117     -76     -3 |      11     38
            |      49      28     116     154      5 |       6
sio   uuuux |       2      27    -190     -75      9 |      56     66
            |      14      18      85      51      9 |       3


Table 7.1886.0   GPS week: 1886   Day: 0   MJD: 57446.500

                                                         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      20     -76      82      4 |      29     45
emr   uuuuu |      57     -26      62     165     -1 |      39     50
esa   uuuuu |      22      55      23     138      2 |      42     53
gfz   uuuuu |     -19     -10     160     -13      6 |      23     38
grg   uuuux |     -21     -10     -31    -213    -20 |      47     56
igr   xxxxx |     -25      14      65      15      6 |       6     33
irf   xxxxx |      22       6      20     -67     -9 |       7     34
jpl   uuuuu |       9     -81     -75     178      6 |      40     52
mit   uuuuu |      18       4       2    -140     -2 |      23     40
ngs   uuuuu |     -65      49     -12    -208     -9 |      18     36
sio   uuuux |      -9      14    -115    -103     -2 |      59     67

Table 7.1886.1   GPS week: 1886   Day: 1   MJD: 57447.500

                                                         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 |      19     -11      84     192    -12 |      33     48
emr   uuuuu |      61       8    -154     236     -2 |      42     53
esa   uuuuu |       2      33      89      42      4 |      46     56
gfz   uuuuu |     -23     -35     184     -53      1 |      27     41
grg   uuuux |     -76       8    -133    -197      1 |      50     58
igr   xxxxx |     -54      10     139     -35     -5 |      10     35
irf   xxxxx |      16       5      36      -4     -7 |      10     35
jpl   uuuuu |      -6     -44     -98      33     10 |      45     56
mit   uuuuu |      32      16      21      -1      5 |      26     43
ngs   uuuuu |     -35      26      15    -235     -3 |      21     37
sio   uuuux |      -3       7     -58       2     14 |      61     70

Table 7.1886.2   GPS week: 1886   Day: 2   MJD: 57448.500

                                                         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 |      12      -6       1     112      7 |      22     50
emr   uuuuu |      46     -23     -38     140      4 |      29     49
esa   uuuuu |      29      21      49     115     -1 |      36     54
gfz   uuuuu |       2     -48     159      34      0 |      16     43
grg   uuuux |     -51     -13      40     -54     46 |      40     55
igr   xxxxx |       8     -16     182     138      2 |       1     43
irf   xxxxx |      22     -17     -34      -1      3 |       0     43
jpl   uuuuu |       0     -45     107      35     -4 |      36     53
mit   uuuuu |      32      27    -144    -101      1 |      17     44
ngs   uuuuu |     -75      36       4    -134     -6 |      11     41
sio   uuuux |      25      42    -210     -75     17 |      52     65

Table 7.1886.3   GPS week: 1886   Day: 3   MJD: 57449.500

                                                         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     -25     -95      94     -1 |      24     48
emr   uuuuu |      25     -26     112     176      1 |      29     49
esa   uuuuu |      20      33      12      60     -6 |      37     54
gfz   uuuuu |     -38     -14     202    -245      0 |      18     42
grg   uuuux |     -42       1      88    -134     64 |      44     56
igr   xxxxx |      -1      18      67     141     -4 |       3     40
irf   xxxxx |      12       4     -65     -15      1 |       1     41
jpl   uuuuu |      16     -10     255      89     10 |      36     53
mit   uuuuu |      17      17    -185     -51      0 |      19     43
ngs   uuuuu |     -10       8    -181      49     -3 |      11     41
sio   uuuux |      -3      31    -267     -65     22 |      55     65

Table 7.1886.4   GPS week: 1886   Day: 4   MJD: 57450.500

                                                         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       6     -46    -106      3 |      18     44
emr   uuuuu |     -10       3     144     266     -5 |      23     43
esa   uuuuu |      35     -10      85     -38     -1 |      31     48
gfz   uuuuu |     -10     -39     253    -267      6 |      13     38
grg   uuuux |       6      -8      85    -193     16 |      45     58
igr   xxxxx |      33      26     -11     154      1 |      -3     37
irf   xxxxx |      31      -9      -8     -57      7 |      -5     37
jpl   uuuuu |     -29      24      83     184      5 |      32     49
mit   uuuuu |      -4       9     -75    -122      0 |      14     38
ngs   uuuuu |      48     -19    -268     147     -7 |       5     37
sio   uuuux |      19      43    -241     -69      7 |      52     62

Table 7.1886.5   GPS week: 1886   Day: 5   MJD: 57451.500

                                                         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     -22      38     -33     -1 |      20     45
emr   uuuuu |      23     -43     159     182    -10 |      25     45
esa   uuuuu |      10      25      72      37     -4 |      33     50
gfz   uuuuu |     -25     -37     307    -240      5 |      16     40
grg   uuuux |     -26      11      27    -118      6 |      50     63
igr   xxxxx |      18     -32     -41      35     -1 |      -1     38
irf   xxxxx |      11       7     -34     -12      0 |      -2     39
jpl   uuuuu |     -43     -12     -62     172     18 |      36     52
mit   uuuuu |       9      39    -100     -40     -4 |      16     40
ngs   uuuuu |      38      11    -173      49      1 |       6     37
sio   uuuux |      -2      48    -290    -165     -1 |      56     66

Table 7.1886.6   GPS week: 1886   Day: 6   MJD: 57452.500

                                                         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 |      16       9    -109      84    -10 |      19     44
emr   uuuuu |      16     -58     190     162     -4 |      23     42
esa   uuuuu |      17      25      33      24     -5 |      31     48
gfz   uuuuu |      28     -32     169      27      7 |      16     40
grg   uuuux |      14       5     138     -41     63 |      51     64
igr   xxxxx |       2     -28      -3      -3     -2 |      -2     37
irf   xxxxx |      21      -5     -25       7      0 |      -3     37
jpl   uuuuu |     -57     -56     136      30     12 |      37     54
mit   uuuuu |     -23      22     -86     -16     -7 |      14     38
ngs   uuuuu |      15      65    -207    -197      7 |       5     36
sio   uuuux |     -13       5    -148     -46      3 |      55     65



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