[IGSREPORT-26991] Wk 2083 IGS Final Orbits

acc acc at igs.org
Fri Dec 27 14:44:54 PST 2019


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2083   (Dec 08, 2019 - Dec 14, 2019)

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:

igs2083[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2083[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2083[0-6].cls  IGS GPS clock combination summary report.
igs20837.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20837.sum      Complete report.

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

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

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

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

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation. Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | TIXI TIXI
                0  |  EMR   | 18 18 GRAZ GRAZ
                0  |  ESA   | OHI3 PTBB OHI3 PTBB
                0  |  GFZ   | 18 18 BJNM GODE POHN BJNM GODE POHN
                0  |  GRG   | 18 18 POHN
                0  |  JPL   | 31
                1  |  COD   | ASCG TIXI TLSE TIXI TLSE
                1  |  EMR   | 18 GRAZ GRAZ
                1  |  ESA   | 3 3 18 DAV1 PTBB SEYG TLSE DAV1 PTBB TLSE
                1  |  GFZ   | 18 BJNM GODE POHN BJNM CHTI GODE POHN
                1  |  GRG   | DAV1 MCM4 DAV1 MAW1 MCM4
                1  |  MIT   | BJNM BJNM
                2  |  COD   | TIXI SCOR TIXI
                2  |  EMR   | GRAZ
                2  |  ESA   | CHUR HOFN NYA1 PTBB SCOR ANKR CHUR PTBB
                2  |  GFZ   | 16 ANKR FLRS POHN YAR2 FLRS GODE HOFN POHN SCOR YAR2
                2  |  GRG   | CCJ2 HOFN SCOR CCJ2 HOFN
                2  |  JPL   | NYA1
                2  |  MIT   | CHUR
                3  |  COD   | 2 21 2 21 ASCG CPVG GUAT REUN TIXI ASCG GUAT TIXI
                3  |  EMR   | 21 21
                3  |  ESA   | 18 18 HOFN PTBB REUN HOFN PTBB
                3  |  GFZ   | BJNM GODE POHN SOFI BJNM GODE POHN SOFI
                3  |  GRG   | 18 26 1 18 26 FAA1 HOFN MCM4 STJO CKIS CPVG HOFN
                3  |  JPL   | DAEJ
                3  |  MIT   | 18
                4  |  COD   | 18 18 ASCG FLRS TIXI ASCG TIXI
                4  |  ESA   | 18 18 PTBB PTBB
                4  |  GFZ   | 21 21 BJNM BOR1 GLSV GODE POHN BJNM GLSV GODE POHN
                4  |  GRG   | 18 1 14 18 FAA1
                4  |  JPL   | FLRS
                5  |  COD   | ASCG BRFT LAUT NAUR TIXI ASCG BRFT LAUT NAUR TIXI
                5  |  EMR   | 6 6
                5  |  ESA   | 18 PTBB REUN TLSE PTBB REUN TLSE
                5  |  GFZ   | GODE POHN DGAR GODE POHN
                5  |  GRG   | 18 18 DARW
                5  |  JPL   | 6 6
                5  |  MIT   | MTKA
                6  |  COD   | 1 18 21 1 18 21 ASCG DAV1 LAUT NAUR TIXI ASCG DAV1
                6  |  COD   | LAUT NAUR TIXI
                6  |  EMR   | 18 21 PRDS
                6  |  ESA   | 1 1 DAV1 NANO PTBB SGOC DAV1 PTBB SGOC
                6  |  GFZ   | BJNM GODE POHN BJNM GODE NANO POHN
                6  |  GRG   | CKIS DARW

 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
               ----+--------+---------------
                0  |  SIO   |   4
                2  |  SIO   |   4
                3  |  GRG   |  26
                3  |  SIO   |   4
                4  |  SIO   |   4
                6  |  SIO   |   4

 7. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G04 |    |    |    |    |  4 |  4 |  4 |
           PRN G26 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |

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

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    1.0    -.3    1.0       2      5     -7    -.60
       EMR  |   0 |   -1.2    3.4    3.9     -42    -15    -12    -.18
       ESA  |   0 |     .1    -.5    -.3      -4     13     50    -.44
       GFZ  |   0 |     .5     .5     .9      37     13     37    -.45
       GRG  |   0 |    -.8    2.3    1.3      26     17     94    -.08
       JPL  |   0 |    6.6    3.4    2.9      11    -14     17    -.54
       MIT  |   0 |     .6    4.8    -.8       5     26     20    -.17
       NGS  |   0 |    2.4    4.6    -.9      48    -17     -2    -.17
       SIO  |   0 |     .4    5.6    1.6      -9    -35      9    -.27

       COD  |   1 |     .6     .4     .7       3      9     -7    -.49
       EMR  |   1 |    4.3    9.7    2.7     -40     19    -44    -.14
       ESA  |   1 |     .1     .1    -.1      -7     -2     62    -.35
       GFZ  |   1 |     .4     .9    -.0      40      0     22    -.20
       GRG  |   1 |   -2.7    5.7    8.2      -3      2     86    -.11
       JPL  |   1 |   10.6    3.4    2.8       5     -7      9    -.37
       MIT  |   1 |    2.7    5.8     .8       8      7      7    -.24
       NGS  |   1 |   -1.9    1.4   -1.1     -12     47    -25    -.30
       SIO  |   1 |    2.1    3.2   -5.4      21    -10     -7    -.15

       COD  |   2 |     .9    -.6     .4       1      9     15    -.41
       EMR  |   2 |    3.0    4.4    2.9     -53     17    -57     .07
       ESA  |   2 |     .1     .5    -.5      -5     10     68    -.28
       GFZ  |   2 |     .4    1.1    -.2      34      9     22    -.33
       GRG  |   2 |   -2.2    3.9    8.7      -6      8     80    -.13
       JPL  |   2 |   10.7    4.2    5.6      -9     -5     31    -.38
       MIT  |   2 |    5.5    3.8   -1.5     -21     37    -19    -.24
       NGS  |   2 |    3.8     .3     .4      13     15    -44     .03
       SIO  |   2 |    3.9    1.1    -.3       6    -13      6    -.21

       COD  |   3 |    1.2    -.7    1.0      -6     10      2    -.50
       EMR  |   3 |    1.3    6.1     .4     -63     17    -67     .15
       ESA  |   3 |     .4    -.2    -.2       0     17     59    -.33
       GFZ  |   3 |     .7     .4    -.0      41      1     54    -.22
       GRG  |   3 |   -7.7    1.3   12.7       6     -1     95    -.13
       JPL  |   3 |   10.8    6.3    6.7       6     -2      4    -.43
       MIT  |   3 |     .0    7.1    -.5     -22     51     10    -.20
       NGS  |   3 |   -2.1    2.6   -1.8      15     15    -24    -.19
       SIO  |   3 |   -3.6    2.2   15.3      10    -13      8    -.24

       COD  |   4 |     .4    -.1    1.1       3     18      1    -.49
       EMR  |   4 |    5.0    2.4    5.1     -62     22    -76     .06
       ESA  |   4 |    -.2    -.2    -.9      12     16     57    -.45
       GFZ  |   4 |     .3     .9     .1      39     16     31    -.31
       GRG  |   4 |     .6    3.6   -1.1      21     18     74     .05
       JPL  |   4 |    -.3    4.1     .9       5     -1     21    -.15
       MIT  |   4 |    2.9    5.4    2.9     -10     26    -24    -.16
       NGS  |   4 |    1.9    2.8    2.5       9     -1    -26    -.07
       SIO  |   4 |    1.1     .8   12.0      -1     -9     -4    -.14

       COD  |   5 |     .5     .1    1.3       5     16      3    -.62
       EMR  |   5 |    7.5   16.1    3.2     -42      9    -33     .02
       ESA  |   5 |    -.5     .5    -.3       5     24     55    -.31
       GFZ  |   5 |     .3    1.1     .7      44     10     41    -.37
       GRG  |   5 |     .3    1.2    4.9      20     -6     93    -.04
       JPL  |   5 |   17.5    5.2    3.4      -3     -3     24    -.58
       MIT  |   5 |    1.8    6.7    5.8     -28     16    -11    -.26
       NGS  |   5 |    3.0    1.4     .9      10     -1    -12    -.19
       SIO  |   5 |     .3    5.8     .7      -2     -6     12    -.30

       COD  |   6 |     .8     .5    1.5      13     15      1    -.71
       EMR  |   6 |    2.0   17.3   11.4     -33      9     -1    -.15
       ESA  |   6 |     .3     .3    -.3      10      8     75    -.37
       GFZ  |   6 |     .3    1.2     .8      50     19     49    -.39
       GRG  |   6 |    -.5    6.0   -1.1      23     -8    101    -.08
       JPL  |   6 |   12.2    3.1    6.2       1     -5     13    -.62
       MIT  |   6 |    1.7    7.4    5.6      -9     10      9    -.30
       NGS  |   6 |     .4    4.9    2.9      29     -2     -2    -.19
       SIO  |   6 |    2.1    7.1    5.8      20      5     -1    -.18


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

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        ftp://igs.org/pub/station/general/igs14.atx


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.2083.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2083.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 2.2083.[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 3.2083.[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 5.2083.0-6). 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 2083 summary.                       (Dec 08, 2019 - Dec 14, 2019)

Table 1.2083.a   GPS week: 2083   MJD: 58825.000-58831.000

         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|   -1     0     0    17     4    21  -.03    8    8 |    -460    -185      6     94
        |    0     0     0     9     8     9   .02           |      69     208
emr   79|    0     2     2   -16     0     7   .16   13   13 |  142651     323     16     93
        |    2     3     1    17    16     7   .02           |     378    1060
esa  150|    0     0     1   -14   -18     3  -.04   10   10 |     295   -1975      7     76
        |    0     0     1     7    22    20   .02           |     561     825
gfz  178|    0     0     1     8     1     6   .12   10   10 |    -154     -45     10    111
        |    0     0     1    15    11    13   .03           |     373     370
grg   98|    0     0    -1   -21    -9    -2  -.14   16   10 |     146    -163     10    130
        |    0     0     3     8    13    28   .04           |     219     397
igr  n/a|    0     0     0   -12     1   -16   .04    4    4 |    5139     312     10     62
        |    0     0     0    12     8     5   .01           |     358     974
jpl   80|    0     0     1     6    19   -19   .12    9    9 |  213509     160      7     67
        |    2     1     1    11    18    14   .04           |     301     884
mit  349|    0     0    -5   -10    -6    12  -.09   14   13 |    3983    -406     83   1705
        |    0     0     0    22    18    15   .01           |    3048    1284
ngs  201|    0     0     0     3     0    -9  -.04    8    7 |    -465    -188   1008   2054
        |    0     0     1    20    17    11   .02           |      83     224
sio  315|    1    -1    -3     7     0    -4  -.04   15   14 |     ---     ---    ---    ---
        |    0     0     1    31    33    40   .06           |     ---     ---


Table 1.2083.b   GPS week : 2083   MJD: 58825.000-58831.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2083.0   GPS week: 2083   Day: 0   MJD: 58825.000                            

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    14    -5    11  -.04    8    8 |    -393    -383      7     92
emr   80|    0     0     2    -6   -13    10   .15   13   13 |  142293     438     13     87
esa  150|    0     0     1    -5    -4    13  -.04   10   10 |     166   -1807      7     77
gfz  177|    0     0     0    15     9    13   .16   10   10 |    -172     465     10    104
grg   94|    0     0     0   -27    10    -4  -.09    9    9 |     100     247      9    123
igr  n/a|    0     0     0    -2    -4   -17   .03    4    4 |    4596     576     10     56
jpl   80|   -2     2     1    18     0    -2   .17   10   10 |  213551     328      8     66
mit  349|    0     0    -7    20   -20    32  -.09   14   13 |    4897     462    110   1839
ngs  210|    0     0     0   -24    17   -24  -.05    6    6 |    -363    -364   1097   2205
sio  315|    2     0    -2    14   -42    -3  -.12   15   14 |     ---     ---    ---    ---

Table 2.2083.1   GPS week: 2083   Day: 1   MJD: 58826.000                            

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    10    16    17  -.02    8    8 |    -538    -113      7     86
emr   80|    0     3     1     0    11    18   .13   13   13 |  142454    1050     14     89
esa  150|    0     0     3   -20   -67   -11  -.09   14   12 |     641   -2264     11     81
gfz  184|    0     0     0    16     3     0   .10   10    9 |     -90      86     10    109
grg  100|    1     0     0   -26    10   -29  -.11   12   11 |      86      99     11    133
igr  n/a|    0     0     0   -21     0    -8   .03    4    4 |    4937     967     11     74
jpl   80|    0     0     0     0    32    -8   .14    8    8 |  213613     642      7     62
mit  350|    0     1    -6   -19   -11    33  -.09   14   14 |    5427     207     80   1512
ngs  210|    0    -1     0     0    -6   -17  -.04    7    6 |    -531    -101   1046   1795
sio  316|    3    -1    -3    -4     0    25  -.07   17   16 |     ---     ---    ---    ---

Table 2.2083.2   GPS week: 2083   Day: 2   MJD: 58827.000                            

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|    0     0     1     3    -1    30  -.01    8    8 |    -568     178      7     98
emr   80|    0     0     2   -13    14    -2   .14   12   12 |  143060      52     14     97
esa  150|   -1     0     1   -20   -19    38  -.04   10   10 |    -119   -1610      8     84
gfz  182|    0     0     0    20    -4   -15   .10   10   11 |    -767     169     11    122
grg  100|    0     0     2   -26   -16   -25  -.15   11   10 |     178    -251     10    112
igr  n/a|    0     0    -1   -17     3   -19   .05    3    3 |    5358      44     10     61
jpl   80|    0     1     0    25    26   -22   .11    8    8 |  213846     -80      8     70
mit  350|    0     0    -6   -14   -18     7  -.08   14   13 |    5366     375    106   1448
ngs  209|    1    -1    -1     0     7    -5  -.03    7    6 |    -540     213   1070   2475
sio  322|    1    -2    -2     9   -19    -8  -.07   16   15 |     ---     ---    ---    ---

Table 2.2083.3   GPS week: 2083   Day: 3   MJD: 58828.000                            

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     0    23     8    36  -.03    8    8 |    -423    -329      7     93
emr   80|    2    -1     1   -24   -15     6   .14   13   12 |  142978     172     17     93
esa  150|   -1     0     0   -13    -6    11  -.03   11   10 |    -708    -383      7     71
gfz  183|    0     0     4    25    -8     2   .10   12   12 |    -389     129     12    125
grg   99|    1     0     0    -9   -17   -30  -.12   51   12 |      -7     -48     10    130
igr  n/a|    0     0     0    11   -10   -14   .04    4    4 |    5252     372     11     64
jpl   80|    0     0     1    -3    -4   -30   .13    9    9 |  213617     107      7     69
mit  349|    0     0    -5   -20    32    15  -.11   15   13 |    5846      56     78   1831
ngs  209|    0     0    -2     0    -1     8  -.01    9    8 |    -459    -298    893   2006
sio  320|    0    -2    -3   -15    37   -11  -.08   15   14 |     ---     ---    ---    ---

Table 2.2083.4   GPS week: 2083   Day: 4   MJD: 58829.000                            

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  244|   -1     0     0    20    -4    26   .00    8    8 |    -390    -361      6     93
emr   80|    0    -2     3   -52    22     7   .16   13   13 |  143100    -964     17     98
esa  150|    0     0     0   -14   -13    -6  -.02   10   10 |     470   -2933      7     72
gfz  176|    0     2     2     6    23     6   .09   10   11 |    -227    -249     10    124
grg   97|    1     1    -4   -19   -13    11  -.10   11   10 |     297    -405     10    149
igr  n/a|    0     0     0   -15     8   -11   .02    4    4 |    5697    -798     11     65
jpl   80|   -1    -1     0     4     3   -42   .03    8    8 |  213667    -586      6     69
mit  349|    0     0    -4    22   -17     3  -.10   13   12 |    7083   -3193     78   1771
ngs  192|    0     0     1    -8     6     0  -.04    8    7 |    -524    -288    905   2096
sio  313|    1     0    -2    38   -10    16  -.02   15   14 |     ---     ---    ---    ---

Table 2.2083.5   GPS week: 2083   Day: 5   MJD: 58830.000                            

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  243|    0     0     0    31     9     9  -.03    9    8 |    -439    -268      7    103
emr   79|    3     8     0    -5   -18    12   .17   15   15 |  142443    -668     18     92
esa  150|    0    -1     0    -5    -6   -22  -.03   10    9 |     900   -2398      7     66
gfz  171|   -2     0     2   -16    -4     7   .15    9    8 |     382    -667     10     99
grg   96|    0     0     0   -10   -18    21  -.18    9    9 |     528    -905     10    128
igr  n/a|    0     0    -1   -14    -3   -16   .04    4    4 |    5230    -870     10     60
jpl   80|    5     0     0    -5    36   -26   .15   11   10 |  213366   -1013      8     68
mit  350|    0     0    -5   -31    -6     0  -.08   15   14 |    -362    -679     77   1690
ngs  192|   -1     0     0    37    11   -16  -.06    9    7 |    -337    -434    929   1982
sio  312|    0    -1    -5   -40   -18    35   .07   15   14 |     ---     ---    ---    ---

Table 2.2083.6   GPS week: 2083   Day: 6   MJD: 58831.000                            

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    -1     1    15    11    19  -.05    8    8 |    -474     -20      5     96
emr   80|   -2     6     3   -10     0    -3   .19   14   14 |  142233    2185     19    101
esa  150|    0     0     1   -22   -10    -1  -.03    8    9 |     718   -2431      8     81
gfz  173|    0     0     0    -7    -5    29   .16   10    9 |     179    -251     11     97
grg  101|    1     0    -6   -31   -20    41  -.20   10    9 |    -154     119     11    135
igr  n/a|    0     0    -2   -23    15   -23   .06    3    3 |    4908    1893     10     58
jpl   80|    0     0     2     3    39    -6   .13    8    8 |  212907    1722      8     70
mit  350|    0     0    -5   -30    -5    -4  -.11   15   13 |    -371     -72     58   1844
ngs  188|    0     0     0    22   -35   -12  -.05    7    6 |    -506     -49   1118   1819
sio  311|    2    -3    -4    51    52   -87   .03   15   13 |     ---     ---    ---    ---

       
       
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 3.2083.0   GPS week: 2083   Day: 0   MJD: 58825.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    6   12   17   13    7    4    9   10    6   11    3 |    39   40   43   43   38   42   41   41   43   43    41
   2E |    7   14    6    9    8    3   14   15    8   13    3 |    65   67   64   68   63   65   61   63   65   64    64
   3  |   11   10    7    9    8    3    7   11    6   14    3 |    28   30   31   27   26   24   27   28   28   30    26
  X4  |   11  ---    9  ---  ---   18  ---   26  --- 1281   10 |    38  ---   38  ---  ---   40  ---   44  ---  634    37
   5  |    6    7   12   10    8    4   10   28    4   19    4 |    43   46   43   46   45   44   50   39   44   40    43
  X6E |    7  ---   19   16   14    3   10   11    6   13    4 |    40  ---   42   47   40   42   26   41   41   44    42
   7  |    8   12    7   14   12    3   11   11    5   18    3 |    31   25   25   37   25   27   23   30   25   27    26
   8  |    8   12   12   10   10    4    9    9    5   15    3 |    22   23   23   22   19   20   23   19   19   26    20
   9  |    9    9    7    6    7    3   10   10    6   12    3 |    35   39   33   36   32   33   38   36   33   35    34
  10  |    5    8    6    9    5    5    7   11    5   13    2 |    19   24   22   22   22   21   25   25   21   27    21
  11E |   10    9   13    8   11    4    7   12    6   14    3 |    36   34   36   36   35   34   35   33   31   37    34
  12  |   10   18    6    8    9    3    7   16    6   14    3 |    27   27   25   25   23   25   26   31   24   26    24
  13  |    7   10    8    7    6    3    9   13    8   16    3 |    23   30   23   26   25   24   30   29   26   28    25
  14  |    7    6    8    7    7    3    5   13    6   14    2 |    35   35   35   37   36   35   37   36   37   35    35
  15  |    5   10    6   11    6    3    8   12    7   13    3 |    36   41   40   40   38   38   39   37   37   35    38
  16  |    8   19    6   16   12    3   14   15    6   18    4 |    25   21   24   27   21   22   23   28   23   24    21
  17  |    5   10    8    7    7    3    7   14    7   12    3 |    20   24   20   23   21   22   25   26   22   24    21
 X18E |   13   17   16   16   13    6  ---   17   17   24    6 |    87   80   94   97   92   92  ---   93   86  103    90
  19  |    5   21    9    9    9    3    7   16    7   15    3 |    23   29   25   27   24   24   25   21   23   20    23
  20  |    9    6    7   12   10    6    6   24    6   23    4 |    27   28   26   29   30   26   28   40   30   39    28
  21E |    7   12    7    7    7    4    7   14    4   13    3 |    49   49   49   50   51   50   50   51   49   53    49
  22  |    6   10   10    8    6    4    9   15    6   21    3 |    31   33   28   32   30   31   31   38   33   35    30
  23  |    8   19    9    9    9    3    7   11    7   15    3 |    30   24   27   32   27   29   27   36   30   29    28
  24  |   10   10   14    9    9    3    9    9    9   14    3 |    25   27   31   24   26   24   26   27   23   25    24
  25  |    7   15   13   10   10    5   11    8    5    7    3 |    17   23   21   20   18   18   20   19   16   19    17
  26  |    9   11   13   11   11    2   12   11    7   12    3 |   797  793  797  795  785  794  794  796  791  794   794
  27  |   10   12   13   11   13    5   11    9    7   14    4 |    31   29   32   31   22   30   32   30   31   30    29
  28  |    8   15    8    9    9    3    8   11    8   13    3 |    18   25   20   22   16   18   21   19   18   15    17
  29  |   10   17    6   10   10    4    8   19    7   19    4 |    26   28   25   27   24   24   25   26   28   25    25
  30  |    8   15   17   13   11    3   10    8    6    9    4 |    24   20   24   27   25   22   23   23   21   19    21
  31  |    9   13    7   12   10    5   19   13    8   15    4 |    23   27   23   28   27   23   31   28   23   23    24
  32  |    8   12    4    7    9    5   11    7    6   14    3 |    24   34   27   25   28   26   35   29   29   33    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13   10   10    9    4   10   14    6   15      |T   56   58   56   58   55   55   56   58   56   76    55
 WRMS |    8   13   10   10    9    4   10   13    6   14      |NE  56   59   57   59   56   56   59   59   57   80    56
 MEDI |    8   12    8    9    9    3    9   12    6   14      |MD  28   29   27   29   27   26   27   30   29   30    27

Table 3.2083.1   GPS week: 2083   Day: 1   MJD: 58826.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    5   11   20   11   26    4    8   12    7   13    4 |    43   44   45   46   56   45   43   45   43   47    44
   2E |    6   12    8    7    8    3   11   13   10   16    3 |    44   42   45   46   44   43   43   42   42   39    43
   3  |    7   10   44    9   13    4    9   11    7   13    5 |    21   28   44   20   20   21   29   22   21   27    22
  X4  |   10  ---   14  ---  ---   15  ---   32  ---  ---   13 |    26  ---   30  ---  ---   26  ---   40  ---  ---    28
   5  |    6    7   12    8    7    4    9   29    5   22    4 |    32   35   29   31   29   33   38   33   33   37    32
   6E |   10    6   22   28   16    5    8    9    5   16    5 |    44   34   44   50   41   45   34   45   45   50    44
   7  |    8   13    7    7   13    4   11   14    9   22    4 |    27   24   23   27   23   25   26   28   26   26    24
   8  |   10   12   13    9   12    5    9   11    5   14    3 |    21   24   23   24   19   21   24   21   19   24    20
   9  |    7    9    7    6   10    4   10    8    6   12    3 |    26   34   29   27   23   25   34   26   26   32    27
  10  |    8    8    7   11    6    5    7   11    6   13    3 |    21   26   21   19   20   20   25   20   18   27    20
  11E |    7   11   16    8   17    4    6    9    9   14    3 |    32   33   31   34   34   32   32   29   28   31    30
  12  |    9   19    9    8   12    4    7   15    7   16    4 |    21   24   24   23   19   22   24   25   22   25    21
  13  |    9   12    9    7    9    3   10   14    4   16    3 |    24   33   23   27   21   25   31   25   23   29    25
  14  |    7    6    6    7    8    3    4   13    6   17    2 |    32   34   31   33   33   33   35   34   30   37    32
  15  |   10    8    5    9   10    3    8   13    5   17    3 |    32   31   32   35   30   30   30   28   29   30    30
  16  |   14   18    7   11   13    5    9   15    9   20    4 |    26   22   25   25   24   23   24   31   24   29    23
  17  |    5   11    7   11   10    3    6   16    8   21    3 |    26   30   25   31   26   28   31   31   30   32    28
 X18E |   15   18   24   19   21    8  ---   19   22  ---    8 |    69   67   82   76   76   73  ---   77   72  ---    73
  19  |    7   19    8    9   12    3    8   18    7   19    4 |    26   33   28   32   29   28   31   25   31   27    28
  20  |    7    9    8   10   10    4    7   24    6   21    4 |    23   25   24   24   23   22   26   29   24   31    23
  21E |    7    9    8    6   19    3    8   14    8   16    3 |    42   41   42   44   39   43   43   45   44   44    42
  22  |    7    9    9    9   13    3    8   18    7   25    4 |    22   25   19   21   20   21   25   27   19   29    20
  23  |    7   21   11    6   11    2    7   11    6   16    3 |    26   18   25   26   20   22   21   27   24   24    22
  24  |    8    7   16    9   10    5    8    8    5   13    3 |    24   26   31   21   23   22   25   23   23   25    23
  25  |    7   24   15    8    9    4    9   12    7   13    4 |    19   29   21   19   17   18   21   17   18   20    17
  26  |   10   13   14   19   12    5   11   11    8   13    4 |   819  815  818  817  812  816  816  818  812  818   816
  27  |    8   12   13    8   12    5    9    9    7   16    3 |    26   28   30   29   24   28   27   28   26   32    26
  28  |    7   12    9    8   10    3    6   12    6   16    3 |    24   28   24   29   22   25   27   24   26   27    24
  29  |   10   16    6   10   12    3    7   20    6   17    4 |    24   25   22   27   20   24   24   24   26   25    23
  30  |    7   10   16    8   12    3    8    8    8   14    3 |    25   26   25   25   23   23   24   23   24   20    22
  31  |    8   14    7   13   12    3    8   14    6   19    3 |    28   28   24   33   26   27   29   28   27   28    26
  32  |    9   11    5    7    8    4   10    6    6   13    3 |    21   34   23   22   22   23   34   24   23   31    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13   14   10   12    4    8   14    7   17      |T   53   56   55   56   53   53   55   55   54   56    53
 WRMS |    8   13   12    9   11    4    8   14    6   16      |NE  55   59   56   57   54   55   59   56   56   59    54
 MEDI |    7   11    9    9   12    4    8   13    7   16      |MD  26   29   25   27   23   25   29   28   26   29    25

Table 3.2083.2   GPS week: 2083   Day: 2   MJD: 58827.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    5   12   17   16   14    3    8   10    7   11    4 |    22   22   25   27   23   22   25   21   22   21    21
   2E |   16    9    8    9   15    5    7   17    9   17    4 |    68   68   66   65   64   65   67   66   65   68    66
   3  |    7    9    8    8    9    5    8   10    7   13    3 |    29   33   28   31   30   32   35   28   31   38    30
  X4  |   15  ---   14  ---  ---   10  ---   33  ---  941   14 |    40  ---   38  ---  ---   39  ---   59  ---  571    42
   5  |    7    7   11    9    9    4    8   29    6   22    4 |    42   41   35   39   37   38   43   38   38   37    38
   6E |    8    9   19   21   14    3    7   10    8   12    4 |    19   21   21   24   18   17   24   17   18   16    17
   7  |    9   11    6    8   14    3    7   13    6   23    3 |    44   39   38   43   40   40   40   43   38   40    39
   8  |    4   12   11    8    9    4    7    8    6   15    3 |    28   29   28   31   28   29   31   27   26   33    28
   9  |    8   10    5    8    8    3   10    8    7   12    3 |    41   48   41   41   42   42   49   40   40   45    42
  10  |    7    6    6    8    6    3    6   10    4   16    2 |    19   24   20   19   23   22   26   22   20   29    21
  11E |    8   11   12    8   14    4    7    8    8   14    3 |    40   38   39   42   41   40   41   40   39   39    39
  12  |    8   17    6    9   11    4    8   16    8   15    3 |    37   38   32   34   35   34   35   37   36   36    35
  13  |    7    8    5    6    9    2    8   17    4   18    3 |    21   25   17   23   19   20   26   25   19   27    21
  14  |    7    8    8    7    8    3    4   13    5   14    2 |    24   22   23   21   23   22   22   28   22   27    22
  15  |    6   11    5    7    8    2    6   11    6   16    2 |    42   44   43   43   40   42   42   39   39   44    41
  16  |   10   21    6   14   13    3    9   17    6   18    4 |    22   23   22   26   22   22   21   24   20   23    20
  17  |    6   10    8   10   10    3    6   13    5   13    3 |    25   28   24   29   25   26   28   25   27   24    25
 X18E |   12   18   26   22   18    7  ---   14   23   16    7 |    42   46   53   49   50   45  ---   51   41   47    44
  19  |    6   20    9    9   10    4    7   15    7   15    3 |    22   26   23   28   23   24   25   24   25   26    23
  20  |    7    8    5    9   10    4    5   24    7   25    4 |    33   35   32   35   34   35   35   39   35   43    34
  21E |    7   13    6    7    7    2    8    8    8   11    3 |    52   48   48   51   48   51   49   51   51   52    50
  22  |    6   12   10    6   10    4    7   15    7   21    3 |    39   38   37   41   36   39   40   41   38   44    38
  23  |    8   19    8    6    9    2    6   10    6   15    3 |    43   37   38   42   40   41   42   44   39   41    40
  24  |    6    8   13   10    9    2    7    8    6   11    3 |    36   36   36   35   35   35   37   34   36   34    35
  25  |    9   15   13   13    7    2    9   10    7   10    3 |    28   32   28   31   29   27   30   27   26   31    27
  26  |    8   10   14   16   10    3   12   11    8   12    4 |   704  706  705  704  699  705  706  703  708  704   705
  27  |    6   14   13    8   10    3    9    9    7   14    3 |    20   24   22   23   22   22   24   23   21   25    21
  28  |    7    9    4    9   11    4    5   12    7   12    3 |    27   29   24   30   23   25   28   23   27   25    26
  29  |   14   19    4    9   12    3    7   19    8   18    4 |    33   31   29   32   31   31   30   29   29   33    29
  30  |    9   10   16    7   24    3   10    9    7   10    4 |    36   33   33   35   34   34   36   33   34   32    33
  31  |    9   17    6   13   12    3    8   14   11   21    4 |    31   32   28   33   31   31   32   32   34   33    30
  32  |    7   11    5   11    9    4   11    7    7   14    3 |    27   35   27   26   27   29   36   28   27   36    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12   10   10   11    3    8   14    7   16      |T   54   55   53   55   53   53   56   55   53   72    53
 WRMS |    8   12   10   11   10    3    8   13    6   15      |NE  57   59   55   59   57   57   59   58   57   80    56
 MEDI |    7   11    8    9   10    3    7   11    7   15      |MD  33   33   29   33   31   32   35   32   34   34    30

Table 3.2083.3   GPS week: 2083   Day: 3   MJD: 58828.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   10   12   16   24   17    6    8   15    9   10    5 |    23   26   30   32   23   26   25   26   26   28    24
   2E |    9   12    9   11   10    4    9   18   12   20    4 |    49   51   48   49   48   48   47   43   48   53    47
   3  |    5   10    8    7    9    3    6    9    6    9    2 |    24   31   26   28   23   26   31   24   27   27    26
  X4  |   11  ---   11  ---  ---   10  ---   27  ---  731   11 |    40  ---   36  ---  ---   33  ---   44  ---  406    38
   5  |    6   10   12    9   10    4   10   27    6   21    4 |    43   40   40   39   39   39   46   36   39   37    39
   6E |    7    7   22   27   18    3    8   10    9   15    5 |    27   23   28   32   22   23   22   24   25   24    23
   7  |    8   10    7    8   13    4    9   17    8   21    4 |    31   26   23   30   27   27   25   28   28   22    25
   8  |    6   10   12    9   12    4    8   11    6   14    3 |    25   30   26   26   23   26   28   26   25   30    25
   9  |    7   10    7   10    7    4    9   10    8   10    3 |    32   42   32   34   30   34   41   32   36   36    34
  10  |    8    7    7   10    5    3    6    9    7   10    2 |    21   26   23   26   23   23   25   20   22   26    22
  11E |    7   10   12    8   16    5    8   10   13   14    4 |    34   33   32   33   36   32   33   32   32   33    32
  12  |    8   19    6    8   13    4    7   17   10   14    4 |    26   26   24   20   24   22   26   24   21   23    22
  13  |    7    7    7    8   10    3    8   16    8   17    3 |    24   29   23   23   22   23   29   27   27   28    24
  14  |    9    5    7    8    8    3    5   15    5   14    3 |    23   24   23   21   21   23   23   30   25   28    22
  15  |    5   11    6    7    8    2    6   13    9   16    3 |    32   32   35   32   27   30   31   26   30   32    30
  16  |   11   19    5   10   11    4    9   15    6   15    4 |    24   24   25   27   20   25   23   27   28   24    23
  17  |    4    8    6   10   14    3    6   15    6   15    3 |    22   28   21   29   21   23   25   24   25   22    23
 X18E |   19   18   18   48   18   10  ---   14   27   14    9 |    60   66   66   89   63   67  ---   69   68   69    66
  19  |    8   15    7   10   14    3    6   17    7   17    4 |    22   24   22   24   19   22   22   23   24   21    21
  20  |    9    7    6   12   10    3    6   25    7   24    4 |    21   24   23   25   21   22   22   28   23   28    21
  21E |   17    8    7   12    9    5    9   11    7   11    3 |    47   50   49   51   52   51   52   55   52   52    50
  22  |    6   10    8    7    7    3    8   16    6   19    3 |    28   31   23   28   26   28   29   31   26   32    27
  23  |    6   19   10   10    8    3    8   11    8   13    3 |    28   20   26   30   24   27   25   29   32   24    26
  24  |    6    8   14    9   10    3    6    7    9    8    3 |    24   25   29   22   23   23   26   23   21   24    23
  25  |    9   19   14   12    8    4   12   11    8   11    4 |    21   27   25   23   22   22   25   23   18   24    21
  26  |   15   28   21   17  275    9   30   17   15   17    8 |  9999 9999 9999 9999 9999 9999 9999 9999 9999 9999  9999
  27  |    8   12   13    7   13    4   10   11    7   14    3 |    22   27   26   24   20   24   26   23   25   28    23
  28  |    8   12    6    9   12    4    6   15    9   14    3 |    22   24   22   26   19   22   21   18   26   20    21
  29  |   10   18    6    6   11    3    6   17    9   18    4 |    33   32   30   30   26   28   29   29   27   32    29
  30  |    8    9   16    8   10    4    8   11    8    9    3 |    28   26   27   25   26   26   27   24   29   22    25
  31  |    9   16    5   12   12    4    7   15    9   19    4 |    28   28   26   29   26   25   28   30   29   25    26
  32  |    6   11    5   14    8    4   10    9    7   11    3 |    23   36   28   21   27   26   35   28   26   30    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13   11   11   51    4    9   15    9   15      |T   29   31   29   30   27   28   29   29   29   42    28
 WRMS |    8   12   10   12   11    4    9   13    8   14      |NE  26   28   26   26   24   25   27   27   26   42    25
 MEDI |    8   10    7   10   10    4    8   15    8   14      |MD  26   27   26   28   23   26   26   27   26   28    25

Table 3.2083.4   GPS week: 2083   Day: 4   MJD: 58829.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   12   11   18   14   21    6    8   10   13   10    4 |    30   31   34   35   29   32   29   31   35   31    31
   2E |    9   12    8   13    9    5    9   14   13   18    4 |    51   53   49   51   49   50   47   48   55   53    50
   3  |    7    7    7    7    7    3    6    6    8   11    2 |    23   26   24   24   21   24   27   21   23   27    23
  X4  |   11  ---   10  ---  ---   19  ---   28  --- 1156   11 |    43  --- 9999  ---  --- 9999  --- 9999  --- 9999  9999
   5  |    9    7   11    8   10    3    7   27    8   20    4 |    35   36   33   38   30   34   36   36   37   35    34
   6E |   10    8   21   21   17    3   11   11    9   13    5 |    30   29   31   34   27   28   26   30   28   33    29
   7  |    6   10    7    7   12    4    7   15    6   19    3 |    30   29   27   29   31   28   27   33   26   28    27
   8  |    7   10   11    7    7    6    8   10    7   11    3 |    18   23   19   22   17   18   19   19   18   25    18
   9  |    7   10    5    9    6    3   11    7    7   11    3 |    29   40   31   32   32   31   40   30   29   33    32
  10  |    7    8    6    6    7    4    8    7    9   14    3 |    18   23   20   21   21   20   21   19   20   23    19
  11E |    8   11   12   12    9    5    8   12   10   10    3 |    22   26   23   26   25   24   23   21   25   21    22
  12  |    8   16    6   12   12    3    6   15    8   14    3 |    29   26   25   28   26   26   25   27   26   29    25
  13  |    7    9    7    7    7    2    9   15    6   16    3 |    20   27   23   21   21   21   27   27   23   27    22
  14  |    8    7    8    6   18    4    6   11    6   12    3 |    28   24   28   23   19   24   26   30   23   25    24
  15  |    7   11    7    7    6    2    7   11    8   14    3 |    39   37   37   39   32   36   34   32   35   36    35
  16  |    9   21    5   10   13    4    8   16    8   17    4 |    21   21   21   21   20   19   19   23   17   20    18
  17  |    8   10    9   12   11    3    5   12    9   13    3 |    21   27   22   30   21   23   24   25   24   26    23
 X18E |   27   22   15   22   19   15  ---   18   30   18    8 |    83   79   68   67   71   61  ---   62   62   54    66
  19  |    8   23    9   11   12    4    6   16    9   15    4 |    21   27   23   25   21   21   21   20   23   21    20
  20  |   11    9    6   11   10    5    7   24    6   24    4 |    22   23   21   26   23   22   24   29   23   31    22
  21E |   10   10    8    7   15    5    7   12    6   13    3 |    41   40   39   40   41   40   41   38   39   41    39
  22  |    7   10    9    7    5    3    9   17    8   21    3 |    28   28   23   28   26   25   29   31   26   31    26
  23  |    7   20    8    5    7    3    7   10    5   14    3 |    31   26   29   31   30   30   29   33   30   28    29
  24  |    6    8   13   10    9    4    7    6    9    9    3 |    28   27   31   26   28   25   28   26   27   29    26
  25  |   11   18   14   11    7    4    9   10    7   11    4 |    22   24   22   23   18   19   21   20   20   25    19
  26  |    8   11   12   10   15    5   10   12    7   11    3 |   825  821  827  824  829  823  823  827  822  824   824
  27  |    9   10   13    7   10    5    8    9    7   11    3 |    19   22   23   22   20   20   19   21   19   22    19
  28  |    7   12    6   10   10    4    5   11    6   12    3 |    19   22   22   24   20   19   21   19   22   19    19
  29  |   14   20    6    8   11    5    7   19   10   23    4 |    23   21   18   20   17   18   18   19   21   28    18
  30  |    5   11   14    6   12    3    7   10    8    9    3 |    25   26   25   23   28   24   26   24   23   22    23
  31  |    9   16    6   14   14    5    8   14   11   17    4 |    25   27   23   29   24   23   24   24   25   20    22
  32  |    5   13    4   12    7    4   12    6    7   16    3 |    20   32   24   16   23   21   30   21   17   28    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13   10   10   11    4    8   13    8   15      |T   53   55   53   54   52   52   53   53   53   54    52
 WRMS |    8   13   10   11   10    4    8   12    7   14      |NE  56   58   56   57   55   55   57   57   55   58    55
 MEDI |    8   11    8   10   10    4    7   12    8   14      |MD  25   27   24   26   25   24   26   27   25   28    23

Table 3.2083.5   GPS week: 2083   Day: 5   MJD: 58830.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   11   22   12   17   16    5   19   17   17   15    5 |    38   43   34   40   40   33   36   33   37   35    35
   2E |   14   14    7   10    7    3    9   18   15   16    4 |    49   47   50   53   48   50   50   50   51   55    49
   3  |    8    9    8    7    9    3    9    9    9   10    3 |    21   25   22   22   19   20   29   20   20   27    21
  X4  |   14  ---  ---   12  ---   14  ---  ---  ---  ---   13 |    17  ---  ---   12  --- 9999  ---  ---  ---  ---  9999
   5  |    9   11    9    7    8    3    9   27    7   22    4 |    37   36   30   34   35   32   38   35   33   35    33
   6E |   22   20   20   14   14    7   21   14   17   14    6 |    44   37   39   38   39   36   42   37   42   35    37
   7  |    9   14    7    8   10    3    8   17    6   18    3 |    31   28   24   30   26   27   27   32   27   27    26
   8  |    9   11   14    6    7    5    9    9    5   12    3 |    20   24   22   25   18   19   24   21   20   30    20
   9  |    7   13    7    7    9    4   13   11    7   12    3 |    26   38   27   26   25   25   37   25   26   31    27
  10  |    6    9    6    9    4    4    8   10    6    9    2 |    20   26   20   22   19   20   25   21   19   24    20
  11  |    7   11   13    8   10    5    9   12    7   11    3 |    33   34   32   36   29   32   34   31   35   31    32
  12  |   11   20    6    7   11    2    9   16    5   15    4 |    26   28   25   27   24   26   27   30   26   32    25
  13  |    6    9    7    8    6    4    8   19    7   18    3 |    27   34   29   27   26   29   32   28   29   30    27
  14  |    8    9    7    7    6    5    7   14    7   13    3 |    36   35   35   39   38   35   36   36   37   35    35
  15  |    7   12    5    5    5    4    9   11    6   15    2 |    27   30   28   31   23   24   27   25   24   27    26
  16  |   10   25    7    6   10    3   11   14    9   19    4 |    24   22   24   26   21   21   22   27   25   25    21
  17  |    8   10    7   10   11    5    9   15    9   16    3 |    23   30   23   28   19   23   30   22   24   28    23
 X18E |   13  ---   21   24   14   16  ---   22   19   21    8 |    84  ---   79   85   78   85  ---   78   79   76    80
  19  |    8   19    8    9   11    5    9   16    9   16    4 |    22   26   25   27   19   22   27   19   23   24    21
  20  |    8    9    6   10   10    5    8   25    6   23    4 |    21   22   20   25   22   21   22   25   22   28    20
  21E |    8    9    6    6    9    5   11   12    6   12    3 |    62   66   63   66   66   66   65   67   64   69    65
  22  |    7   10   10    9    8    3    8   15    8   21    3 |    18   24   18   22   18   20   23   24   20   25    19
  23  |    6   19   10    5    9    4    6   14    7   12    3 |    23   19   22   22   21   21   21   28   23   25    21
  24  |   10   11   12    9    9    6    9   10    8   11    3 |    23   30   28   23   21   21   25   23   21   27    22
  25  |    9   18   15   10    8    4   12   10    7   14    4 |    18   24   21   21   18   18   21   18   16   24    17
  26  |    9   12   16    9    8    4   13   13    8   12    4 |   476  476  475  473  466  475  475  477  474  480   476
  27  |    7   11   12    8    9    5   10    9    7   15    3 |    22   26   25   24   20   23   25   24   24   29    22
  28  |    9   17    8    9   10    3    9   14   10   15    4 |    24   27   22   25   17   20   24   18   21   25    20
  29  |   11   19    5    7   10    4    8   18   10   16    4 |    19   19   18   21   17   18   19   19   19   27    18
  30  |    7   12   16    7   10    3    8   13    6   10    3 |    25   25   24   24   25   23   26   22   23   25    23
  31  |   10   13    6    7   11    3    9   17    9   21    4 |    23   28   22   26   23   22   28   26   24   23    22
  32  |    6   16    5   11    7    5   12    9    7   13    3 |    15   34   21   16   15   18   29   18   15   24    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   14   10    9    9    4   11   15    9   15      |T   42   45   43   44   41   42   44   43   43   46    42
 WRMS |    8   14    9    8    9    4   10   14    7   14      |NE  40   45   42   42   39   40   44   42   41   45    40
 MEDI |    8   12    8    8    9    4    9   14    7   15      |MD  24   28   25   26   23   23   27   25   24   28    23

Table 3.2083.6   GPS week: 2083   Day: 6   MJD: 58831.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   10   28   17   12   11    7  ---   11   13    9    5 |    35   42   37   41   32   34  ---   30   29   31    31
   2E |   10   10    6    8    9    4   10   17    9   16    3 |    74   74   75   79   75   76   74   75   75   76    75
   3  |    8   12    8    7   11    2    8   10   10   10    3 |    28   30   28   30   23   26   30   23   26   31    26
  X4  |    8  ---    9   12  ---    9  ---   25  --- 1332    7 |    11  --- 9999   13  --- 9999  --- 9999  --- 9999  9999
   5  |    6    9    9   12   10    4    9   27    9   19    4 |    48   46   45   48   45   46   52   43   50   43    47
  X6E |   10   13   16   26   13   10  ---   12   14   12    6 |    55   39   59   60   51   54  ---   54   50   59    54
   7  |    6   15    7   12   11    5    7   17    6   20    3 |    29   29   26   28   28   28   29   34   28   31    27
   8  |    6   12   10    9    8    4    7   10    7   10    3 |    19   23   24   23   20   20   22   18   20   27    20
   9  |    9   13    4    8    9    4   11   12    6   10    3 |    33   43   36   33   36   34   43   37   32   38    35
  10  |    6   10    7   10    7    4    6    8    6    7    2 |    17   27   21   20   20   20   21   17   21   21    19
  11  |    7   13   13   10   11    4    7   12    9   11    3 |    34   36   35   36   34   33   34   32   34   31    33
  12  |    7   19    6    7   11    3    7   15    6   14    3 |    29   32   28   29   27   29   30   32   30   32    29
  13  |    6    9    7    7    6    3    8   15    6   14    3 |    28   33   28   29   29   30   34   32   30   37    29
  14  |    7    9    7    7    9    3    5   12    5   13    2 |    39   43   40   42   43   40   41   41   39   40    40
  15  |    6   12    5    9    6    2    9   11    4   16    3 |    32   38   35   35   29   33   35   30   32   32    32
  16  |   10   22    6    8   12    5    9   17    6   18    4 |    25   27   27   23   23   24   23   29   26   27    23
  17  |    8   13    6   13   10    3    5   14    6   13    3 |    19   25   19   25   19   22   24   22   21   22    20
 X18E |   12   22   16   21   11   11  ---   18   23   16    6 |   103  102  100  109  105  106  ---  106  101   98   103
  19  |    9   18    7   11   10    3    7   15    7   15    3 |    20   25   22   28   21   22   22   19   22   17    20
  20  |    8    8    5   16   10    4    5   25    7   24    4 |    26   29   25   32   28   28   27   38   27   36    26
  21E |    7    9    7   12   12    4    8   12    5   11    3 |    75   73   74   77   80   78   77   79   79   76    77
  22  |    7   12    9    9    8    4    7   19    8   23    4 |    26   30   27   29   27   27   27   33   26   32    25
  23  |    7   18    7    8    9    3    6   14    6   12    3 |    28   24   26   29   29   28   27   33   28   27    27
  24  |    5   10   10    8    8    3    5    8    8    9    2 |    25   29   28   26   24   24   27   24   24   28    25
  25  |    9   19   15   12    9    3    9    8    7    9    4 |    21   25   25   24   21   20   22   18   18   21    20
  26  |    9   12   13   12   11    4   10   12    7   11    3 |   315  310  313  313  314  314  314  310  313  312   314
  27  |    7   12   13    8    8    4    9   12    7   11    3 |    22   28   27   26   21   24   25   27   27   29    24
  28  |    9   14    5   10   11    4    5   10    8   15    3 |    21   25   20   24   18   20   23   17   19   20    19
  29  |   10   20    5    8   11    3    7   16    8   17    3 |    27   27   23   26   22   23   25   20   25   30    24
  30  |    6   14   13    9    9    2    7   12    6   13    3 |    22   26   22   21   24   22   24   21   21   21    21
  31  |    8   13    7   11   14    4    6   16   12   20    4 |    22   27   19   29   24   22   24   26   24   23    21
  32  |    6   13    5    9    9    3   11    9    7   10    3 |    20   34   25   21   24   22   31   24   22   28    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    8   10   10    3    8   15    7   15      |T   41   45   43   44   42   42   42   43   42   44    42
 WRMS |    8   14    9    9    9    3    8   13    6   13      |NE  36   41   38   38   37   37   40   38   38   40    37
 MEDI |    7   13    7    9   10    4    7   12    7   13      |MD  27   30   27   29   27   28   27   30   27   31    26



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 4.2083   GPS week: 2083   MJD: 58825.0-58831.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3029 |U   11    10    20 |U    0     0     0 |U   11    10    31 |
emr | emr 2945 |U   18    16    55 |U    0     0     0 |U   21    12    45 |
esa | esa 3058 |    11    12    23 |U    0     0     0 |    16    11    37 |
gfz | gfz 2999 |U   12    11    22 |U    0     0     0 |U   11    10    33 |
grg | grg 2975 |U   11    12    21 |U    0     0     0 |    12    10    33 |
igr | igr 3011 |    10    11    20 |     0     0     0 |    12    10    34 |
igs | igs 3004 |    10    11    20 |     0     0     0 |    13     9    33 |
jpl | jpl 2852 |U   15    12    46 |U    0     0     0 |U   18    12    43 |
mit | mit 3058 |U   19    16    33 |U    0     0     0 |U   20    16    51 |



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 5.2083.0   GPS week: 2083   Day: 0   MJD: 58825.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    11     6    23 |  ----  ----  ---- |     9     8    30 |
emr | emr 2876 |    15    14    29 |  ----  ----  ---- |    19    12    42 |
esa | esa 3072 |    12     9    23 |  ----  ----  ---- |    13     7    31 |
gfz | gfz 2972 |    13     9    23 |  ----  ----  ---- |    10     9    30 |
grg | grg 2976 |    11     9    22 |  ----  ----  ---- |    11    10    34 |
igr | igr 3021 |    11     6    18 |  ----  ----  ---- |    11     8    32 |
igs | igs 3028 |    11     7    18 |  ----  ----  ---- |    11     8    32 |
jpl | jpl 2880 |    14     8    23 |  ----  ----  ---- |    16    10    39 |
mit | mit 3072 |    21    23    34 |  ----  ----  ---- |    32    31    75 |

Table 5.2083.1   GPS week: 2083   Day: 1   MJD: 58826.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    11    10    24 |  ----  ----  ---- |    11     9    35 |
emr | emr 2972 |     9    15    30 |  ----  ----  ---- |    19     9    43 |
esa | esa 3072 |    12    14    24 |  ----  ----  ---- |    16     9    37 |
gfz | gfz 2972 |    14    12    31 |  ----  ----  ---- |    12    10    34 |
grg | grg 2976 |    13    13    23 |  ----  ----  ---- |     9    10    35 |
igr | igr 2975 |    11    13    22 |  ----  ----  ---- |    13     9    38 |
igs | igs 3047 |    10    12    20 |  ----  ----  ---- |    13     8    36 |
jpl | jpl 2880 |    11    15    24 |  ----  ----  ---- |    18    11    44 |
mit | mit 3072 |    17    15    27 |  ----  ----  ---- |    15    11    37 |

Table 5.2083.2   GPS week: 2083   Day: 2   MJD: 58827.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     8     8    19 |  ----  ----  ---- |     9     9    29 |
emr | emr 2972 |    13    12    27 |  ----  ----  ---- |    21    11    41 |
esa | esa 3072 |     8    11    23 |  ----  ----  ---- |    14     9    33 |
gfz | gfz 2972 |    10     9    23 |  ----  ----  ---- |    10     8    31 |
grg | grg 2976 |     9    12    19 |  ----  ----  ---- |    10     8    31 |
igr | igr 2990 |     8     9    17 |  ----  ----  ---- |    11     9    35 |
igs | igs 2973 |     7     9    17 |  ----  ----  ---- |    12     8    33 |
jpl | jpl 2880 |    10    11    23 |  ----  ----  ---- |    17    10    42 |
mit | mit 3072 |    16    15    30 |  ----  ----  ---- |    29    20    64 |

Table 5.2083.3   GPS week: 2083   Day: 3   MJD: 58828.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    10     8    19 |  ----  ----  ---- |    10     8    22 |
emr | emr 2972 |    42    21   188 |  ----  ----  ---- |    25    16    45 |
esa | esa 3072 |    12    11    17 |  ----  ----  ---- |    15     7    29 |
gfz | gfz 2971 |    12    12    20 |  ----  ----  ---- |    11     9    25 |
grg | grg 2975 |    13    11    20 |  ----  ----  ---- |    12     8    23 |
igr | igr 3057 |    12    10    25 |  ----  ----  ---- |    13    10    28 |
igs | igs 3055 |    12    12    27 |  ----  ----  ---- |    16    12    30 |
jpl | jpl 2880 |    39    17   180 |  ----  ----  ---- |    22    19    47 |
mit | mit 3072 |    11     8    20 |  ----  ----  ---- |    15    11    32 |

Table 5.2083.4   GPS week: 2083   Day: 4   MJD: 58829.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |     9    11    15 |  ----  ----  ---- |    10     8    29 |
emr | emr 2972 |    14    14    33 |  ----  ----  ---- |    18     9    46 |
esa | esa 3072 |    11    12    26 |  ----  ----  ---- |    15    10    38 |
gfz | gfz 2972 |    12    12    17 |  ----  ----  ---- |    12    12    45 |
grg | grg 2970 |    10    13    22 |  ----  ----  ---- |    12     9    36 |
igr | igr 3031 |    10    13    14 |  ----  ----  ---- |    11     8    35 |
igs | igs 3022 |    10    12    14 |  ----  ----  ---- |    12     8    35 |
jpl | jpl 2880 |    11    11    20 |  ----  ----  ---- |    16     9    39 |
mit | mit 3072 |    15    14    24 |  ----  ----  ---- |    21    12    59 |

Table 5.2083.5   GPS week: 2083   Day: 5   MJD: 58830.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |    12    11    20 |  ----  ----  ---- |    11    11    32 |
emr | emr 2880 |    13    18    31 |  ----  ----  ---- |    19    12    48 |
esa | esa 2976 |    12    14    22 |  ----  ----  ---- |    16    12    37 |
gfz | gfz 3068 |    12    12    24 |  ----  ----  ---- |    12    11    35 |
grg | grg 2976 |    12    14    21 |  ----  ----  ---- |    10    12    30 |
igr | igr 2969 |    11    13    19 |  ----  ----  ---- |    12    12    36 |
igs | igs 2937 |    10    12    26 |  ----  ----  ---- |    12    10    35 |
jpl | jpl 2880 |    10    15    25 |  ----  ----  ---- |    18    12    49 |
mit | mit 2976 |    44    25    74 |  ----  ----  ---- |    14    14    45 |

Table 5.2083.6   GPS week: 2083   Day: 6   MJD: 58831.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    17    19    24 |  ----  ----  ---- |    18    16    42 |
emr | emr 2972 |    18    16    44 |  ----  ----  ---- |    24    13    47 |
esa | esa 3072 |    13    14    28 |  ----  ----  ---- |    22    20    54 |
gfz | gfz 3068 |    11    13    19 |  ----  ----  ---- |    12    11    34 |
grg | grg 2976 |    12    13    21 |  ----  ----  ---- |    17    16    40 |
igr | igr 3039 |    11    13    23 |  ----  ----  ---- |    13    12    35 |
igs | igs 2968 |    11    11    19 |  ----  ----  ---- |    13    10    34 |
jpl | jpl 2688 |    14    11    24 |  ----  ----  ---- |    17    12    40 |
mit | mit 3072 |    13    14    21 |  ----  ----  ---- |    15    12    41 |


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 6.2083   GPS week: 2083   MJD: 58825.500-58831.500

                                                         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     -19      51      85     -1 |       7     17
            |      15      15      65      97      2 |       2
emr   uuuuu |      -8      30      29     -54      6 |      29     33
            |      24      31      96      60     10 |       2
esa   uuuuu |       8      -2     114     -58      5 |      16     21
            |      23      16      49      70      3 |       4
gfz   uuuuu |      -9     -23      86     -13      5 |      15     20
            |      18      22     135      42      3 |       3
grg   uuuuu |      23       9     -65      16     -2 |      -1     11
            |      22      24      53      33      3 |       1
igr   xxxxx |       6      11     -17      40      3 |       1     14
            |      10      14      58      36      3 |       3
irf   xxxxx |     -16     -28      -1     -55      0 |       0     14
            |      13      14      25      39      3 |       2
jpl   uuuuu |     -23       9     -73     -38     -5 |      28     31
            |      39      39      98      96     13 |       3
mit   uuuuu |      -1      -1      32     -90     -1 |      11     18
            |      24      16      49      86      4 |       1
ngs   uuxuu |      20      -7     -54     145     -1 |       9     16
            |      57      25     286      90      3 |       2
sio   uuuux |     -19      41    -299    -197      2 |      41     44
            |      36      22      86      56     10 |       2


Table 7.2083.0   GPS week: 2083   Day: 0   MJD: 58825.500

                                                         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 |      27       1      37     101     -3 |       4     14
emr   uuuuu |       7      -4     148     -23     -1 |      27     29
esa   uuuuu |      -9      -3     162    -135      4 |      12     16
gfz   uuuuu |     -12       3    -106      -8      2 |      12     16
grg   uuuuu |       3      20     -88      54      3 |      -1      9
igr   xxxxx |       9      -1      16      22      2 |      -2     12
irf   xxxxx |     -12     -11     -18     -16     -3 |      -1     10
jpl   uuuuu |      25      -9      76      98    -13 |      33     35
mit   uuuuu |      21       1     -21       3     -7 |      12     15
ngs   uuxuu |     -47     -19     300     -15      0 |       7     14
sio   uuuux |      40      47    -359    -186    -14 |      41     42

Table 7.2083.1   GPS week: 2083   Day: 1   MJD: 58826.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -17     -11      73     -88      3 |       4     14
emr   uuuuu |      -7      23      -3     -19      1 |      27     29
esa   uuuuu |      58      28     133    -118      3 |      12     16
gfz   uuuuu |       0     -15     -65      38      6 |      11     16
grg   uuuuu |      -2      17      33      47     -6 |      -1      9
igr   xxxxx |      16      15      77      23      4 |      -3     12
irf   xxxxx |      -3     -34      33     -11      5 |      -2     11
jpl   uuuuu |     -10       3     -57      46    -13 |      29     32
mit   uuuuu |      17     -10      56      17      4 |      10     15
ngs   uuxuu |      -3     -26     240      97      1 |       7     13
sio   uuuux |     -17      43    -265    -181      6 |      38     40

Table 7.2083.2   GPS week: 2083   Day: 2   MJD: 58827.500

                                                         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 |      13     -12      -4     120     -2 |       8     17
emr   uuuuu |     -16     -12     146     -42     -9 |      30     33
esa   uuuuu |      11       6      37    -137      9 |      16     21
gfz   uuuuu |      13     -39     221     -30      4 |      15     21
grg   uuuuu |      25      26    -109      30      2 |       1     11
igr   xxxxx |       0      21     -47      -3      6 |       1     15
irf   xxxxx |      -9     -33      -4     -37     -3 |       2     14
jpl   uuuuu |      -8     -24     -54     -16     -5 |      31     33
mit   uuuuu |       2     -10      59     -56     -5 |      13     19
ngs   uuxuu |     -23      24    -206      92     -3 |      10     17
sio   uuuux |     -11      69    -440    -140      4 |      42     45

Table 7.2083.3   GPS week: 2083   Day: 3   MJD: 58828.500

                                                         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 |     -11     -23     -57      -2      0 |       7     18
emr   uuuuu |      -9      64     -58    -139     10 |      28     32
esa   uuuuu |      -2     -12     157     -42      8 |      16     21
gfz   uuuuu |      12     -62     189      36      2 |      14     21
grg   uuuuu |       5     -33     -25     -20     -5 |       0     13
igr   xxxxx |      18     -12     -13      55      3 |       1     15
irf   xxxxx |      -2     -47       6     -39      1 |       0     17
jpl   uuuuu |       3      26     -68       7     -4 |      27     31
mit   uuuuu |      20       1       9     -72      1 |      11     20
ngs   uuxuu |      -7      23    -388     192      2 |       9     18
sio   uuuux |       1      26    -192    -137     -8 |      41     44

Table 7.2083.4   GPS week: 2083   Day: 4   MJD: 58829.500

                                                         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     -28      70     142      0 |       7     18
emr   uuuuu |     -55      48      79     -65      8 |      28     33
esa   uuuuu |      13     -15     139      21      6 |      17     23
gfz   uuuuu |     -26     -27     138      -7      5 |      15     22
grg   uuuuu |      41      -9    -106      -6     -1 |      -1     12
igr   xxxxx |       5      12    -114     112      6 |       1     16
irf   xxxxx |     -31      -8     -35     -80      1 |      -1     16
jpl   uuuuu |     -24     -16     -98    -124    -19 |      26     29
mit   uuuuu |      -4      34     -12    -141      0 |      10     19
ngs   uuxuu |      39       9    -353     206      1 |       8     18
sio   uuuux |     -24      65    -340    -230      4 |      40     43

Table 7.2083.5   GPS week: 2083   Day: 5   MJD: 58830.500

                                                         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 |       1     -45     101     125     -3 |      11     18
emr   uuuuu |      24      67     -22      32      7 |      32     36
esa   uuuuu |      -7     -19     114     -15     -1 |      21     25
gfz   uuuuu |     -33      -8     203     -78      4 |      19     23
grg   uuuuu |      51       4    -102      32     -1 |       1     11
igr   xxxxx |       8      27     -29      38     -2 |       6     14
irf   xxxxx |     -22     -32     -15     -85     -3 |       3     15
jpl   uuuuu |     -56      90    -256    -143     20 |      27     29
mit   uuuuu |     -21      -8      17    -188      0 |      13     20
ngs   uuxuu |      59     -37    -137     223     -6 |      12     18
sio   uuuux |     -51       8    -221    -208     18 |      43     46

Table 7.2083.6   GPS week: 2083   Day: 6   MJD: 58831.500

                                                         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 |       3     -15     135     200     -2 |       8     16
emr   uuuuu |       1      26     -87    -120     23 |      31     35
esa   uuuuu |      -4       5      59      18      6 |      20     23
gfz   uuuuu |     -18      -9      21     -44     11 |      18     22
grg   uuuuu |      42      37     -58     -26     -3 |      -2     11
igr   xxxxx |     -11      18     -11      33      4 |       4     13
irf   xxxxx |     -34     -30      28    -115      0 |       1     15
jpl   uuuuu |     -92      -7     -50    -134      1 |      27     30
mit   uuuuu |     -43     -12     120    -192     -1 |      11     19
ngs   uuxuu |     121     -19     165     223     -5 |      10     17
sio   uuuux |     -73      27    -276    -300      5 |      43     46


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