[IGSREPORT-25102] Wk 1935 IGS Final Orbits

acc acc at igs.org
Mon Feb 27 13:18:42 PST 2017


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1935   (Feb 05, 2017 - Feb 11, 2017)

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:

igs1935[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1935[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1935[0-6].cls  IGS GPS clock combination summary report.
igs19357.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs19357.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   | ALRT OHI2 SYOG TIXI ALRT OHI2 SYOG TIXI
                0  |  EMR   | MCM4 MCM4
                0  |  ESA   | ALRT AUCK MAL2 ALRT AUCK MAL2 OUS2
                0  |  GFZ   | CEDU GMSD GODE MAL2 CEDU GMSD GODE MAL2 REUN
                0  |  GRG   | 18 18 ADIS GLSV LHAZ MAW1 RIO2 SYOG TRO1 ADIS GLSV
                0  |  GRG   | LHAZ MAW1 RIO2 SYOG TRO1
                0  |  JPL   | AUCK AUCK
                1  |  COD   | LPGS PTBB SYOG TIXI SYOG
                1  |  EMR   | SYOG SYOG
                1  |  ESA   | CHTI FAA1 MAL2 NKLG CHTI FAA1 MAL2
                1  |  GFZ   | FAA1 GMSD MAL2 FAA1 GMSD MAL2
                1  |  GRG   | 25 25 ADIS DAV1 GLSV KIT3 NNOR SYOG TLSE ADIS GLSV
                1  |  GRG   | KIT3 LPGS NNOR SYOG TLSE TUVA
                1  |  MIT   | 25 25 NKLG NKLG
                2  |  COD   | TIXI LPGS MAL2 TIXI
                2  |  EMR   | PTBB
                2  |  ESA   | FAA1 OHI3 SOFI FAA1
                2  |  GFZ   | 14 CEDU GMSD LHAZ WTZR ALRT CEDU GMSD LHAZ MDVJ SOFI
                2  |  GFZ   | SYOG WTZR
                2  |  GRG   | ADIS GLSV KIT3 KOUR LPGS NICO OUS2 REUN RIO2 SYOG
                2  |  GRG   | ADIS GLSV KIT3 KOUR LPGS NICO OUS2 POTS REUN RIO2
                2  |  GRG   | SYOG TUVA
                2  |  MIT   | REUN REUN
                3  |  COD   | GLSV REUN SYOG TIXI GLSV REUN SYOG TIXI
                3  |  EMR   | YAR2 YAR2
                3  |  ESA   | AUCK AUCK FAA1
                3  |  GFZ   | GMSD MAL2 SYOG GMSD MAL2 SYOG
                3  |  GRG   | 21 21 ALRT DAV1 GLSV GMSD KIT3 NICO REUN SYOG TUVA
                3  |  GRG   | ALRT DAV1 FAA1 GLSV GMSD KIT3 NICO REUN SEYG SYOG
                3  |  GRG   | TUVA
                4  |  COD   | LPGS TIXI LPGS TIXI
                4  |  ESA   | FAA1 MAL2 SYOG FAA1 MAL2 SYOG
                4  |  GFZ   | FAA1 GMSD GODE MAL2 FAA1 GMSD GODE MAL2 SYOG
                4  |  GRG   | GLSV KIRU KIT3 SYOG TUVA GLSV KIRU SYOG TUVA
                4  |  MIT   | AREG OHI3 AREG OHI3
                5  |  COD   | LHAZ TIXI SCH2 SYOG TIXI
                5  |  EMR   | CHUR
                5  |  GFZ   | BARH BJNM GMSD GODE MAL2 BARH BJNM FAA1 GMSD GODE
                5  |  GFZ   | LHAZ MAL2
                5  |  GRG   | HOLB KIT3 LHAZ SYOG TUVA VILL FAA1 GLSV KIT3 LHAZ
                5  |  GRG   | SYOG TUVA VILL
                5  |  MIT   | 22 22
                6  |  COD   | ALRT TIXI TIXI
                6  |  EMR   | MCM4 MCM4
                6  |  ESA   | AUCK SYOG AUCK FAA1 SYOG
                6  |  GFZ   | GMSD GODE MAL2 YKRO GMSD GODE MAL2 SYOG YKRO
                6  |  GRG   | GLSV KIRU KIT3 KOUR LHAZ LMMF MAL2 NICO NNOR RIO2
                6  |  GRG   | SYOG TUVA FAA1 GLSV KIRU KIT3 KOUR LHAZ LMMF MAL2
                6  |  GRG   | NICO NNOR RIO2 SEYG SYOG TUVA

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

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

 7. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.2     .5     .2       6      7     -3    -.11
       EMR  |   0 |    4.0    1.0   17.0      18     51    -40     .45
       ESA  |   0 |     .4     .4     .3       2     -4     -8     .01
       GFZ  |   0 |     .3     .3    -.5     -11    -31      7     .08
       GRG  |   0 |    4.5   -5.0   10.6      42     -3     69     .38
       JPL  |   0 |    1.1    2.1   11.1     -39    -39     45     .42
       MIT  |   0 |     .2   -4.5   11.9      -6      7      7     .15
       NGS  |   0 |   -1.6    -.4    3.4       3    -31     -8     .12
       SIO  |   0 |    1.3     .9    4.7      27      5     -6     .22

       COD  |   1 |    -.1     .5     .3       7      2     -3    -.24
       EMR  |   1 |   -3.6    -.9   16.9      13     58    -45     .41
       ESA  |   1 |     .6     .2    1.1       5    -13     -4    -.15
       GFZ  |   1 |     .7     .4    -.1     -12    -48      7    -.03
       GRG  |   1 |    3.4   -8.1   -6.9      67    -32     87     .08
       JPL  |   1 |    6.0   -5.3   11.0       1    -74     34     .24
       MIT  |   1 |    1.1   -2.1   11.8     -11     -6     -1     .49
       NGS  |   1 |    1.4     .2    1.7      11    -40     -2     .05
       SIO  |   1 |    1.7    1.8    4.7       6     15     24     .06

       COD  |   2 |    -.2     .7     .3      19      1     -4    -.09
       EMR  |   2 |     .9    4.2   14.2      10     41     -4     .19
       ESA  |   2 |     .7     .3     .8      23    -14    -10     .16
       GFZ  |   2 |     .1     .3    -.4     -13    -33      0     .13
       GRG  |   2 |    1.6    1.7    2.5      45    -25     83     .32
       JPL  |   2 |    1.7    1.9   17.5     -64    -89     71     .27
       MIT  |   2 |   -3.8    2.9   10.9     -17     18      1     .62
       NGS  |   2 |     .3    4.2    7.0       4    -24    -22     .20
       SIO  |   2 |   -1.8    8.1    9.7      22     15     27    -.09

       COD  |   3 |     .1     .3     .2      10      1     -3    -.15
       EMR  |   3 |    9.2   -1.7   16.3      39     51    -46     .35
       ESA  |   3 |    1.5     .8     .9      15      7    -27     .02
       GFZ  |   3 |     .1     .7    -.4     -13    -25     -7     .08
       GRG  |   3 |    2.9    1.3   11.2      63    -39    108     .33
       JPL  |   3 |    -.6    -.4   16.1       3    -54     45     .62
       MIT  |   3 |     .7     .7   11.7      -6      3      1     .78
       NGS  |   3 |    -.3    4.4   11.3      37    -39    -27     .02
       SIO  |   3 |     .1    3.0    6.1      11     35     39     .11

       COD  |   4 |     .2     .2     .3       8      1     -5    -.15
       EMR  |   4 |    7.5   -2.8   19.4      33     40    -43     .55
       ESA  |   4 |    1.3     .1    1.4       5     14    -18     .08
       GFZ  |   4 |     .6     .3    -.4     -17    -37      4     .14
       GRG  |   4 |    5.4   -1.3    1.4      41    -24     73    -.07
       JPL  |   4 |    4.7     .6   22.2     -63    -60     31     .12
       MIT  |   4 |     .3   -2.2   14.2     -19      8     -1     .78
       NGS  |   4 |     .2    2.2   15.2      29    -37    -17     .17
       SIO  |   4 |    4.1     .4   10.0      11      8     40    -.08

       COD  |   5 |    -.0     .4     .3       7      3     -6    -.09
       EMR  |   5 |    6.3   -1.9   20.5      44     46    -24     .36
       ESA  |   5 |    1.1     .2    1.1       5     12    -18     .04
       GFZ  |   5 |     .4     .6    -.2     -11    -29    -13     .14
       GRG  |   5 |    4.8   -1.1   17.3      24    -23     82     .28
       JPL  |   5 |   -5.5    3.9   16.1      28    -22     33     .64
       MIT  |   5 |   -1.8     .7   12.6     -37     20    -20     .70
       NGS  |   5 |   -2.5    3.9   12.4      34    -52    -11     .18
       SIO  |   5 |    -.4    3.6   12.3      -5    -12     36    -.01

       COD  |   6 |     .2     .3     .2       5      9     -9    -.11
       EMR  |   6 |    3.3    3.5   21.4      52     68    -58     .54
       ESA  |   6 |     .2    -.2    1.3       5      7    -14    -.03
       GFZ  |   6 |     .2     .1     .0     -19    -35      4     .09
       GRG  |   6 |    4.1   -1.6   -1.6      71    -58     91     .31
       JPL  |   6 |   -3.3     .6   15.4     -10    -29     26     .61
       MIT  |   6 |   -1.4    2.2   11.4     -19     35     -9     .80
       NGS  |   6 |   -4.6    4.5   11.7      25      8      3     .19
       SIO  |   6 |    1.0    4.9   18.5     -15     55     26     .16


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

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


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1935.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1935.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 2.1935.[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 3.1935.[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 5.1935.0-6). 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 1935 summary.                       (Feb 05, 2017 - Feb 11, 2017)

Table 1.1935.a   GPS week: 1935   MJD: 57789.000-57795.000

         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  260|    0     0    -3    -4   -17     3   .09   10    9 |    -474    -409     12    119
        |    0     0     1    14    20    13   .04           |      62     166
emr   79|    0    -1     8    19    35   -16   .26   15   15 |    1482     453     17    155
        |    1     1     1    21    11    14   .03           |    1542     947
esa  149|    0     0     1    -3     7     6  -.04    7    7 |    -154    -809      7    175
        |    0     0     0     7    13     8   .02           |     595    1176
gfz  190|   -1     1     0    14   -11     0   .14   10   10 |    -330      10     11    135
        |    0     0     2     8    14     9   .02           |     374     590
grg  103|    0     0    -1     2    29     3  -.32   15   13 |    4821  -14259     13    182
        |    0     0     5    18    18    29   .04           |   11471   35087
igr  n/a|    0     0    -1   -27    -5    -5   .06    5    4 |    3521     866     12     82
        |    0     0     0    10     8    14   .03           |    2395    1106
jpl   80|    0     0     9     5    11     5   .29   14   14 |    1362     540     46    226
        |    0     1     1    11    18     8   .02           |    1626    1041
mit  349|    1    -1     0   -32   -16    12  -.12   13   11 |    -212    -264     57    363
        |    0     0     1    24    24    11   .02           |     489     255
ngs  212|    0     1     1     5    -4   -12   .05    9    8 |    -485    -361   1003   2054
        |    0     0     2    13    17    17   .05           |      68     107
sio  314|    1    -2    -5   -11   -17    -9  -.11   13   12 |     ---     ---    ---    ---
        |    1     0     1    21    20    20   .05           |     ---     ---


Table 1.1935.b   GPS week : 1935   MJD: 57789.000-57795.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1935.0   GPS week: 1935   Day: 0   MJD: 57789.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  250|    0     0    -2   -13   -39    -5   .14    9    9 |    -555    -199     12    105
emr   80|    1     0    11    27    50     1   .27   15   15 |     275    -505     15    152
esa  150|    0     0     0    -3    24     4  -.05    7    7 |     -68   -1577      7    155
gfz  185|   -2     0    -3    15     0    14   .14    9   10 |     298    -881      8     98
grg  100|    1     2     7    33    69   -21  -.24   18   14 |    1002   -2982     13    154
igr  n/a|    0     0    -1   -17     4   -28  -.01    5    5 |    1573    -649     12     87
jpl   80|    0     1     7     3    34     4   .28   13   13 |    -172    -279     45    190
mit  350|    2    -2     2   -42   -55     2  -.14   14   12 |      19    -594    168    442
ngs  210|    0     0    -3    13    -5    14  -.05    9    8 |    -544    -189    933   1888
sio  290|    2    -1    -4   -28   -35   -31  -.13   14   14 |     ---     ---    ---    ---

Table 2.1935.1   GPS week: 1935   Day: 1   MJD: 57790.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  260|    0     0    -1   -17   -28    13   .10   10   10 |    -376    -495     13    122
emr   80|   -2    -2     9     2    40   -28   .28   16   16 |      88     -52     17    159
esa  150|    0     0     2    -4     4    18  -.03    8    8 |     -15   -1054      8    195
gfz  191|   -1     1     1    24     4     8   .17   10   10 |    -429     233     14    119
grg  101|    0     1   -11    16    27   -25  -.34   17   14 |     982   -2801     15    187
igr  n/a|    0     0     0   -12     3    -2   .06    5    5 |    1125     298     13     76
jpl   80|    0     0     9    20    27     0   .29   14   14 |    -141     129     50    227
mit  349|    1    -2     0   -23   -25    11  -.14   13   11 |     171    -380     36    372
ngs  213|   -1     0     0    11     5   -12   .02   10    8 |    -368    -461   1100   2029
sio  318|    2    -3    -2   -18   -24   -16  -.17   13   13 |     ---     ---    ---    ---

Table 2.1935.2   GPS week: 1935   Day: 2   MJD: 57791.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  262|    0     0    -5    18   -37    29   .13   11   10 |    -448    -491     12    123
emr   80|   -1     0     7   -15    13   -10   .25   15   15 |    -158    1798     18    173
esa  149|    0     0     1     4   -14     8  -.02    7    7 |    -184   -1046      7    195
gfz  189|   -1     0     4     7     2     3   .15    9    9 |    -408     403     12    140
grg  109|    0     1    -2   -21    23   -10  -.36   13   12 |    -258     370     13    168
igr  n/a|    0     0     0   -23    -5     2   .09    5    5 |    1207    2030     13     69
jpl   80|    0     0     8   -13    24    12   .30   13   13 |    -247    2030     41    227
mit  349|    0     0    -1   -43    17    23  -.11   13   10 |    -441     123     41    353
ngs  209|    0     0     0    14    10   -35   .05   10    9 |    -454    -462    807   1988
sio  319|    2    -2    -5   -27     3   -22  -.18   13   12 |     ---     ---    ---    ---

Table 2.1935.3   GPS week: 1935   Day: 3   MJD: 57792.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  263|   -2     0    -3   -11   -24    -3   .10   11   10 |    -450    -430     12    121
emr   80|    0    -2     6     9    30   -15   .29   15   15 |    1118    1329     18    159
esa  150|    0     0     1    -7    12     2  -.02    8    8 |    -691     325      8    160
gfz  190|   -1     1     1    11   -24    -6   .15   10    9 |    -656     784     12    155
grg  101|    1     0    -1    -1    18     5  -.31   12   10 |     438    -312     13    182
igr  n/a|    0     0     0   -35   -14     7   .08    5    4 |    2829    1874     13     86
jpl   80|    0    -1    11    11     6     0   .29   17   18 |    1315    1390     54    219
mit  350|    1    -2     0    -9   -24    15  -.11   14   11 |    -112    -428     51    347
ngs  213|    0     0     2     7    17   -24   .07    8    7 |    -458    -414    898   1775
sio  322|    0    -1    -6    -3   -30    16  -.12   12   10 |     ---     ---    ---    ---

Table 2.1935.4   GPS week: 1935   Day: 4   MJD: 57793.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  262|   -1     0    -6    13     4    -2   .07   11   10 |    -502    -375     12    122
emr   79|    1    -4     8    45    33    -6   .23   15   15 |    2865     574     16    157
esa  150|    0     0     2     7     0     0  -.05    7    7 |    1029   -2822      8    202
gfz  194|   -1     1     1    25    -6    -5   .10   10    9 |    -191     -17     13    171
grg  106|    1     0    -5     1    11    -8  -.34   14   13 |     347      70     14    214
igr  n/a|    0     0    -2   -27    -1   -23   .06    4    4 |    5270     940     13     77
jpl   80|    0    -2     9     0    -6    14   .32   13   13 |    2910     581     43    242
mit  350|    1    -1    -1   -54    10    27  -.15   13   11 |    -274    -184     36    368
ngs  217|    0     1     3   -18   -29   -21   .07    8    7 |    -502    -428    757   1796
sio  319|    0    -2    -7   -33    -3    21  -.10   13   12 |     ---     ---    ---    ---

Table 2.1935.5   GPS week: 1935   Day: 5   MJD: 57794.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  262|   -1     0    -1   -13    10     4   .04   10    9 |    -446    -665     12    122
emr   80|    0     0     6    28    35   -16   .22   15   15 |    3777    -771     19    148
esa  150|    0     0     0    -5    23    -4  -.06    7    7 |    -415     294      8    164
gfz  193|    0     0     0     0   -28   -11   .11   11   10 |     -96    -663     12    136
grg   94|    1     1     1   -12    31    52  -.31   14   12 |     422    -393     12    201
igr  n/a|    0     0    -1   -39    -9    -2   .09    4    4 |    6697    -296     12     98
jpl   80|    0     1     8    16     7    -6   .29   15   15 |    3750   -1049     51    235
mit  350|    1     0    -2     6   -16    -6  -.10   13   11 |     308    -391     37    331
ngs  215|    0     1     3    -8   -22     1   .10   10    9 |    -579    -318   1262   2619
sio  319|    1    -1    -5    23   -42   -13  -.05   12   12 |     ---     ---    ---    ---

Table 2.1935.6   GPS week: 1935   Day: 6   MJD: 57795.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  262|    0     0    -4    -5    -5    -9   .05   10    9 |    -543    -209     12    124
emr   80|    1    -2     8    35    43   -43   .25   15   15 |    2415     799     18    138
esa  150|    0     0     1   -15     2    14  -.05    8    8 |    -740     216      7    155
gfz  192|   -1     1     1    15   -25    -1   .13   11   10 |    -832     214     12    126
grg  115|    1     0    -2     3    22    33  -.32   14   13 |   30819  -93771     12    174
igr  n/a|    0     0    -1   -36   -17     8   .04    5    5 |    5952    1869     11     83
jpl   80|    0    -1     8    -1   -14    16   .28   13   13 |    2119     980     42    245
mit  350|    1    -1     0   -61   -23    14  -.11   14   12 |   -1160       1     36    334
ngs  210|   -1     1     4    17    -9    -7   .08   10    8 |    -490    -259   1264   2285
sio  316|    0    -1    -4     6    11   -18  -.05   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 3.1935.0   GPS week: 1935   Day: 0   MJD: 57789.000                            

        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   13    4    8   11    5   15   14    7   15    3 |     4    5    3    4    3    3    4    3    3    5     3
   2  |   11   15    5   13   15    4   14   16    9   13    4 |     3    4    2    2    3    2    2    2    2    6     2
   3  |    8   12    4    7   11    4   11   10    6   14    3 |     3    5    2    2    2    2    2    3    3    3     2
  X4E |    3  ---  ---  ---  ---   66  ---  ---  ---  ---    0 |     4  ---  ---  ---  ---    3  ---  ---  ---  ---     4
   5  |    8    9   10    9   13    5   13   15    9   14    4 |     2    3    2  260    2    2    3    4    3   16     2
   6  |    6   17    5    6   14    3   11    9    6   12    3 |     3    5    2    2    3    2    3    2    3    3     2
   7  |    7   13   10   10   15    5   13   12   10   13    4 |     2    2    3    4    2    2    2    4    2    5     2
   8  |    7    9    4    7   12    3   12   11    7   11    3 |     3    3    2    2    3    2    2    2    2    3     2
   9  |    9   12    4    7   12    3   12    5    6    7    2 |     2    3    1    3    2    1    2    2    2    2     1
  10  |    7   12    6    5   15    5   11   10    9   10    3 |     3    4    3    2    2    2    3    2    2    4     2
  11  |    8   14   10    8   10    5   12   12    6   11    3 |     2    3    2    3    4    2    2    2    2    3     2
  12  |   13   25    4   11   20    5   20   14   13   12    5 |     4    4    2  249    3    3    3    5    5 9999     3
  13  |    6    9    9    8   11    3   10   10    8   13    3 |     3    3    1    2    1    1    1    3    2    3     1
  14  |    9   10    8   13   12    5   11   12    9   15    4 |     2    2    1    2    1    1    2    3    1    3     1
  15  |    9   14    9   10   10    5   17   14    9   16    4 |     2    2    1   85    2    2    1    3    2    3     1
  16  |   14   23    6   13   28    5   17   14   12   21    5 |     3    2    2    2    3    2    2    2    2    3     2
  17  |    7   14   11    9   12    7   14   23   11   11    4 |     3    4    2    4    2    2    3    4    2    5     2
  18  |    8   28    9   12   40    5   21   12    9   16    6 |     2    4    3    2    3    2    2    2    2    3     2
  19  |    7   21   11   13   12    7   17   32   10   15    5 |     2    5    2    3    2    1    3    5    2    5     2
  20  |    9   14    7    9   14    3   12   10    8   10    3 |     2    2    2    2    2    1    2    2    2    3     2
  21  |   11    9    7   10   12    3    8    9    8   13    3 |     2    4    2    3    2    2    2    3    2    2     2
  22  |   10   13   10    9   55    7   12   21   10   18    7 |     2    4    3    2   20    2    2    4    2    3     2
  23  |   10   21    8   12   13    6   11   18    9   14    4 |     2    3    2    2    3    1    1    5    1    4     1
  24  |    7   11    7    6   10    3   14    7    6   12    3 |     2    4    1    3    2    2    2    3    2    4     2
  25E |    8   12    5    7   15    8   13    7    6   16    3 |     3    5    3    4    4    2    3    3    3    2     3
  26E |    9   17    4    9   14    3   14   14    7   13    4 |     3    4    3    4    4    2    4    4    3    5     3
  27  |    6   10    3    7   12    4   10    8    9   10    3 |     2    3    2    2    3    2    3    2    2    3     2
  28  |    9   20    7    8   16    4   11   11   10   11    4 |     3    6    3    2    3    2    3    2    3    5     2
  29  |   12   19    8   13   13    4   17   15   10   16    4 |     2    2    1    7    2    2    2    2    3   85     2
  30  |    7   11    4    5   13    5   11   15    8    9    3 |     2    6    3    3    2    2    3    3    4    3     3
  31  |   11   16    9   11   13    5   14   15   11   19    4 |     3    4    2  657    3    2    2    4    2   57     1
  32  |    8   10    4    9   12    5   11   12    6    9    3 |     2    3    1    2    1    2    2    3    3    3     1
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   15    7    9   18    5   13   14    9   14      |T    2    3    2   42    3    1    2    3    2    8     2
 WRMS |    9   15    7   10   14    5   13   12    8   14      |NE   2    3    1   40    2    1    2    2    2    9     1
 MEDI |    8   13    7    9   13    5   12   12    9   13      |MD   2    4    2    3    2    2    2    3    2    3     2

Table 3.1935.1   GPS week: 1935   Day: 1   MJD: 57790.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   11    5    6   16    7   16   10    8   11    3 |     4    4    3    4    3    3    5    4    3    6     3
   2  |   12   13    7   11   20    5   14   17   11   15    5 |     4    5    3    3    3    2    3    2    3    5     2
   3  |    7   13    6   10    9    5   11   10    8   10    3 |     4    4    3    2    2    2    3    4    3    6     2
  X4E |    2  ---  ---  ---  ---   35  ---  ---  ---  ---    0 |     4  ---  ---  ---  ---    3  ---  ---  ---  ---     4
   5  |    9   11   10    9   13    4   11   13    8   13    4 |     3    4    2  261    2    2    3    5    5   16     3
   6  |   10   20    6    6   22    4   15    8    7    7    4 |     4    6    4    3    3    2    4    2    4    3     3
   7  |    9   15   10   10   13    6   15    9    9   14    4 |     3    3    3    5    2    2    2    5    3    4     2
   8  |    8    9    4   10   15    3   16    8   11   12    3 |     3    3    2    2    3    2    3    3    2    3     2
   9  |    9   12    4    8   13    4   11    7    5   12    3 |     3    3    2    3    2    1    2    2    2    2     1
  10  |    8   12    7    8   13    4    9   10    6   13    3 |     3    4    3    2    3    2    3    2    2    4     2
  11  |   15   14   13   11   15    5   15    9   10   13    4 |     3    4    4    3    4    2    3    3    3    4     2
  12E |   20   27    6   14   29    9   18    9   14   11    6 |     7    5    3  246    4    3    4    4    5 9999     3
  13  |    6    9    9    7   11    6   10   12   11   14    3 |     2    3    1    2    1    1    2    5    3    5     2
  14  |    7   12    8   14   10    5   17   12    8   17    4 |     2    2    2    3    2    2    2    3    2    3     1
  15  |    9   14   11    9   10    3   11   16   11   16    4 |     4    2    1   84    2    2    2    4    2    4     2
  16  |   14   23    7   11   16    5   16   11   13   16    5 |     3    3    3    3    3    2    2    4    3    3     2
  17  |    7   13   10   15   15    4   17   23   11   13    5 |     3    6    3    3    2    2    3    6    4    5     3
  18  |   14   24    8   11   13    5   16   11   10   18    5 |     3    5    3    3    3    2    3    2    3    3     2
  19  |    7   22   13   15   16    5   19   32   13   15    6 |     3    5    2    3    2    2    3    7    4    6     2
  20  |    9   14    6   10   10    3   11    9    9   10    3 |     3    3    2    3    2    2    2    3    2    2     2
  21  |   11   14    7   10   11    5    9   10    7   13    3 |     3    4    2    3    2    2    3    4    2    2     2
  22  |   11   13    9    8   12    6   12   17   10   15    4 |     3    3    4    2   16    2    2    5    4    5     2
  23  |   13   21    9   14    9    6   15   22   12   20    5 |     2    3    2    2    3    1    1    7    2    5     1
  24  |    6   10    7   13   14    3   11   10    9   11    3 |     2    4    2    3    3    2    3    5    2    5     2
  25E |   10   17    5   10   47    3   21    9    7   11    6 |     4    5    3    4    6    2    4    3    3    4     3
  26E |    9   13    5    6   17    5   16   10    8   11    3 |     3    5    3    4    4    2    4    4    3    6     3
  27  |    6   12    5    8   16    3   13    5   10   11    3 |     2    3    2    3    3    2    3    3    4    4     2
  28  |   11   23    8   12   15    3   14   11   10   10    4 |     3   10    4    3    3    2    3    3    3    4     2
  29  |   12   18    7   13   11    2   11   12   11   19    4 |     2    3    2    7    2    2    2    2    3   82     2
  30  |    6   12    3    9   13    5   11   12    8    8    3 |     4    6    4    4    2    2    3    4    4    3     3
  31  |    8   15   11   10   12    4   15   14   10   15    4 |     4    5    2  655    2    2    3    4    3   57     2
  32  |    7   11    5    7   11    3   10   15    9   11    3 |     2    3    2    2    1    2    2    3    3    4     1
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   16    8   10   17    5   14   13   10   13      |T    3    4    2   42    3    2    2    3    3    8     2
 WRMS |   10   16    8   10   14    5   14   11    8   13      |NE   3    3    2   41    2    1    2    3    2    9     2
 MEDI |    9   13    7   10   13    5   14   11   10   13      |MD   3    4    3    3    3    2    3    4    3    4     2

Table 3.1935.2   GPS week: 1935   Day: 2   MJD: 57791.000                            

        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  |   11   11    5    6   11    5   16    7    9   11    3 |     4    5    3    3    2    2    5    3    3    5     3
   2  |   14   12    5   12   23    5   12   21   10   14    5 |     4    4    3    4    3    3    3    2    3    3     3
   3  |   12   10    5    9   10    5   11    8   11   13    3 |     3    4    3    2    2    2    3    3    2    5     2
  X4E |    4  ---  ---  ---  ---   40  ---  ---  ---  ---    0 |     6  ---  ---  ---  ---    3  ---  ---  ---  ---     6
  X5  |    8   10    8  ---   13    4   12   15   11  ---    4 |     3    4    2  ---    2    2    3    6    5  ---     3
   6  |    9   13    5    6   18    4   12    8   10    8    3 |     4    6    3    2    3    2    3    3    4    4     2
  X7  |    8   12    7  ---   11    4   13   13   11  ---    4 |     3    3    3  ---    2    2    2    5    2  ---     2
   8  |    8   12    5    7   10    4   10    9    9    9    3 |     2    4    2    2    2    2    2    3    3    2     2
   9  |    9   13    5    7   13    4   11    8   10   11    3 |     3    4    2    2    2    2    2    3    3    2     2
  10  |    8   10    6    6   11    5   10    9   10   10    3 |     3    3    2    2    2    2    3    2    2    5     2
  11  |    8   15   11    6   16    3   11    9    9   12    4 |     2    4    4    2    3    2    3    2    3    3     2
 X12E |   17   21    6  ---   18    7   14   13   13  ---    6 |     6    4    3  ---    4    3    4    3    4  ---     3
  13  |    9   10    9   10    8    3   10   14    9   13    4 |     1    4    1    3    1    1    2    5    2    5     2
  14  |   11   11    9   15    9    6   12   11   13   16    4 |     2    2    2    2    2    1    1    3    2    4     1
 X15  |   10   12    9  ---   10    5   12   15   10   15    4 |     3    2    2  ---    1    2    2    4    1    3     2
  16  |   22   25    5   13   19    5   16   11   12   16    5 |     5    3    2    4    6    2    2    4    3    4     2
 X17  |   10   13    7  ---   16    8   14   24   13  ---    6 |     4    6    3  ---    2    3    3    8    4  ---     4
  18  |    9   25    9   10   13    6   17   10   12   15    4 |     3    5    3    3    3    3    2    3    3    3     2
  19  |   14   17   10   12   16    7   17   35   13   15    6 |     4    4    2    3    2    2    2    8    4    6     3
  20  |   11   15    7    8   10    3   10   11    8   12    3 |     3    4    2    3    2    2    2    3    2    2     2
  21  |   13   14    8   10   10    5   10   11    8   13    4 |     3    5    2    2    2    2    2    4    2    2     2
  22  |   10   12    9    8   12    5   11   15   12   17    4 |     3    5    5    2    2    2    2    4    3    5     2
  23  |   10   22    9   10   12    7   14   22   12   15    5 |     2    2    2    1    2    1    1    6    2    4     2
  24  |    9   11    7    6    7    3   11    9    9   11    3 |     2    5    2    3    2    2    3    5    2    4     2
  25E |   10   16    5    6   19    2   16    8    6    8    3 |     3    4    2    3    4    2    4    3    2    5     2
  26E |   10   11    6    8   17    4   14    7    7   14    3 |     3    5    3    4    3    2    3    5    3    6     3
  27  |    7   12    5    6   11    4   12    6    9   12    3 |     2    3    2    2    2    2    3    4    4    3     2
  28  |   11   27    4   10   13    6   14   12   13   11    4 |     3   10    3    3    4    2    3    5    3    3     2
  29  |   13   18    7   13   11    4   10   11   11   16    4 |     2    3    2    7    2    2    2    2    3   78     2
  30  |    7   10    5    7   12    4   15   12    9    8    3 |     4    5    3    3    2    2    3    4    3    2     3
 X31  |    9   12    8  ---   10    4   11   15    9  ---    4 |     4    5    2  ---    1    2    3    2    2  ---     2
  32  |    6   11    3    6    9    4   14   10    5    7    2 |     2    4    1    1    1    1    2    2    2    2     1
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    7    9   13    5   13   13   10   13      |T    3    4    2    2    2    2    2    3    2    6     2
 WRMS |   10   15    7    9   12    5   13   10    9   12      |NE   2    4    2    2    2    1    2    3    2    6     2
 MEDI |   10   12    7    8   12    4   12   11   10   12      |MD   3    4    2    3    2    2    3    3    3    4     2

Table 3.1935.3   GPS week: 1935   Day: 3   MJD: 57792.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6   11    5    5    8    4   21    8    5   10    2 |     3    5    3    3    2    2    4    3    3    5     3
   2  |   16   11    6   12   14    3   11   17    9   10    4 |     3    5    3    3    3    2    3    3    3    3     2
   3  |    9   14    4    7    9    5   13    8    3   10    3 |     3    4    2    2    2    2    3    2    2    4     2
  X4E |    3  ---  ---  ---  ---   34  ---  ---  ---  ---    0 |     5  ---  ---  ---  ---    3  ---  ---  ---  ---     5
   5  |    8   11    9   10   14    4   13   13    7   10    3 |     4    4    3 9999    2    2    3    6    4 9999     3
   6  |   10   16    7    8   14    5   11    9    6    7    3 |     4    8    3    3    4    2    3    4    3    4     2
   7  |    9   13   14   11   11    4   15   12   11   15    4 |     2    2    3 9999    2    2    3    6    3 9999     2
   8  |    9   11    4    7    8    3   12    8    6   10    3 |     3    3    2    2    2    2    2    2    2    3     2
   9  |    8   12    4    7    9    4   10    9    7    6    2 |     2    3    2    2    1    2    2    3    3    2     2
  10  |    8   11    6    9    7    4   10   10    5   14    3 |     3    6    3    3    2    2    3    3    3    6     3
  11  |    8   13   13    8   12    3   11    9    7   10    3 |     2    4    4    2    3    2    3    2    3    1     2
  12E |   18   24    6   12   19    5   16   10   11   12    5 |     3    5    4 9999    4    3    5    4    5    1     3
  13  |   16   11   12    8   11    7   10   14    9   13    4 |     8    5    2    3    1    1    1    5    2    4     3
  14  |   10   12    8   14    5    5   14   13    8   18    4 |     2    2    2    3    2    1    1    3    1    4     1
 X15  |    9   12    9   10   11    4   14   15    9  ---    4 |     2    2    1 9999    2    2    2    4    2  ---     2
  16E |   15   23    8   15   18    7   18   19   10   27    6 |     4    3    3    3    4    2    2    3    3    6     2
  17  |   10   12   11   13   13    5   11   23    9    7    4 |     4    6    4 9999    2    3    3    7    3 9999     4
  18  |    9   26    8   11   11    4   19    9    7   14    4 |     3    6    3    3    3    2    2    3    2    3     2
  19  |   10   17   12   14   13    5   60   32    8   10    5 |     3    4    3    4    3    3    4    7    4    5     3
  20  |    7   14    7    9   12    3   13    9    7    9    3 |     4    3    2    4    2    2    2    3    2    2     2
  21  |   13   18    8    9    9    3   10   12    9   14    4 |     3    5    2    2    2    2    2    3    2    2     2
  22  |    9   15   13    9    9    4   11   11    6   13    4 |     3    5    4    3    2    2    3    3    2    5     2
  23  |    8   23   10   12    9    7   13   24   10   13    5 |     2    3    2    1    2    1    1    5    2    4     2
  24  |    9   12    5    8    8    3   23   10    5    9    3 |     2    5    1    3    3    2    3    5    2    4     2
  25E |   12   16    5    6   14    4   14    9    7    6    3 |     3    4    3    3    3    2    3    4    3    5     3
  26E |   12   14    5    8   15    3   14    9    6   10    3 |     4    6    3    4    5    2    3    6    3    6     3
  27  |   10   14    5    6   10    3   14    7    9    6    3 |     3    3    3    2    2    2    3    4    3    3     2
  28E |   13   21    6   10   12    7   11   15    7    7    4 |     4    8    3    3    5    3    3    5    3    3     2
 X29  |   10   15    6  ---   10    3   11   14   13  ---    5 |     2    3    2  ---    2    2    2    3    4  ---     2
  30  |    8   10    4    8   12    4    9   11    5    6    3 |     3    5    4    3    2    2    3    4    4    2     3
 X31  |   13   16   10   10    9    3   11   15    9  ---    4 |     3    4    2    1    1    2    3    2    3  ---     2
  32  |    5    8    4    5    7    3   10   12    5    9    2 |     3    3    2    2    2    1    2    3    2    3     2
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    8   10   12    5   17   14    8   12      |T    3    4    2    2    2    2    2    3    2    3     2
 WRMS |   10   15    8    9   10    4   18   11    7   10      |NE   3    4    2    2    2    1    2    3    2    3     2
 MEDI |    9   14    7    9   11    4   13   11    7   10      |MD   3    4    3    3    2    2    3    3    3    4     2

Table 3.1935.4   GPS week: 1935   Day: 4   MJD: 57793.000                            

        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   11    6    7   14    3   15    8    5   12    3 |     5    5    4    3    2    3    4    3    3    6     4
   2  |   15   15    6   15   20    4   13   15   10   13    5 |     3    7    4    3    2    2    3    3    4    3     3
   3  |    8   10    3    5    8    4   12    6    4   12    2 |     3    4    2    3    2    2    3    3    2    4     2
  X4E |    3  ---  ---  ---  ---   29  ---  ---  ---  ---    0 |     6  ---  ---  ---  ---    3  ---  ---  ---  ---     6
   5  |   10   11    8   10   17    4   15   15    8    9    4 |     3    4    3 9999    2    2    3    6    5 9999     3
   6  |    9   12    6    9   17    3   11    8    7    6    3 |     3    6    3    3    2    2    4    5    3    4     3
   7  |   13   13   11   10   11    3   13   11   10   15    4 |     3    3    3 9999    2    2    2    6    4 9999     3
   8  |   11   11    5    6   11    4   13    7    6    8    3 |     4    3    2    2    1    2    2    2    2    3     2
   9  |    9    9    4    9   10    5   10    5    2   13    3 |     3    3    2    3    1    2    2    3    3    3     2
  10  |    6   10    3    6   14    3   12    8    6   12    3 |     3    5    3    2    2    2    3    3    2    4     2
  11  |    7   15   12    6   11    4   12    8    9   11    3 |     4    3    4    3    2    2    3    2    3    3     3
  12E |   13   23    5   15   29    4   18   11   13   13    5 |     3    6    5 9999    4    3    5    5    5    1     4
  13  |    6   10    9    6   10    3   10   14    7   13    3 |     6    4    2    2    1    1    1    5    2    3     2
  14  |    9   11    9   11   13    4   13   12   10   21    4 |     2    3    2    3    2    1    3    3    2    4     2
  15  |    9   15    9   10   13    4   15   12   10   14    4 |     2    1    2 9999    2    2    2    5    3 9999     2
  16E |   18   23    7   14   18    6   17   16   13   24    6 |     3    3    3    3    4    2    3    5    4    6     3
  17  |   12   13    9   12   15    4   12   24    9   11    5 |     5    6    3 9999    3    2    3    7    4 9999     3
  18  |    8   28    7   11   11    4   18    9    8   16    4 |     3    5    3    3    2    3    2    3    3    3     3
  19  |   13   18   11   16   12    5   16   32   12   13    6 |     3    4    4    4    3    2    3    7    4    4     3
  20  |    9   14    6    7   13    4   12   11    9   10    3 |     3    3    2    3    2    2    2    3    2    2     2
  21  |   11   13    8    9   11    3    9   11    9   15    4 |     2    4    2    3    2    2    2    4    3    4     2
  22  |   12   13    7    7    8    4   12    9    8   16    3 |     4    4    4    3    2    2    2    4    2    4     2
  23  |   10   20    9   12    8    6   12   20   10   14    4 |     3    3    2    2    2    2    1    4    2    3     2
  24  |    9    9    5    8   11    3   16    8    6   10    3 |     2    6    1    2    2    2    3    5    2    6     2
  25E |   10   14    5    7   16    3   13   10    5   10    3 |     3    4    3    4    4    2    3    4    3    4     3
  26E |   11   12    5    9   23    5   14   13    8   13    4 |     3    6    3    4    4    2    4    6    3    6     3
  27  |    9   12    5    6   13    2   12    7    7    7    3 |     3    3    2    2    1    2    3    5    3    3     2
  28E |   19   19    6   12   20    5    9   16    9    8    5 |     5    7    3    3    5    3    3    5    3    4     3
 X29  |   13   18    7   12   11    4   13   14   13  ---    5 |     3    4    2 9999    2    2    2    3    4  ---     2
  30  |    8   10    3    5   11    3   12   11    6    8    2 |     4    5    3    3    2    2    3    4    4    2     3
  31  |    9   12   12    9   10    3   12   14    8   14    4 |     3    4    3 9999    2    2    3    3    3    1     2
  32  |    7   10    5    4   10    3    9   11    8   10    3 |     3    3    2    2    1    1    2    3    2    3     1
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    7   10   14    4   13   13    8   13      |T    3    4    2    2    2    2    2    4    3    3     2
 WRMS |   10   15    7    9   13    4   13   11    7   12      |NE   3    4    2    2    1    1    2    4    2    3     2
 MEDI |    9   13    6    9   12    4   12   11    8   12      |MD   3    4    3    3    2    2    3    4    3    3     2

Table 3.1935.5   GPS week: 1935   Day: 5   MJD: 57794.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6   12    4    8    9    4   17    7    7    9    2 |     4    4    3    3    3    3    5    4    3    6     3
   2  |   17   12    6   14   17    3   13   15   10   15    5 |     3    7    3    3    2    2    3    3    4    3     3
   3  |   11   11    4    8   12    3   12    8    6    8    3 |     3    6    3    3    2    2    3    4    2    4     2
  X4E |    1  ---  ---  ---  ---   28  ---  ---  ---  ---    0 |     6  ---  ---  ---  ---    4  ---  ---  ---  ---     6
   5  |    9    8    8   10   15    4   12   14    8   10    3 |     3    4    3 9999    2    3    3    6    5 9999     3
   6  |    9   14    5   13   11    4   11   11    6    8    3 |     4    5    3    5    3    2    3    4    2    4     2
   7  |    6   13   11    9    9    3   11   10   13   15    4 |     3    2    3 9999    2    2    2    8    4 9999     3
   8  |    5    9    3    5    9    3   12    7    9    6    2 |     2    3    2    2    1    2    2    2    2    3     2
   9  |    8   11    4    8   12    3   11    9   10   11    3 |     4    4    2    2    2    2    2    3    3    3     2
  10  |    6   10    5    8   12    3   10    9    5   12    3 |     2    3    3    2    3    2    3    3    2    4     2
  11  |    8   17   13   10   10    3   13    8    8   12    4 |     4    5    4    3    2    2    3    2    3    3     2
  12E |   18   22    5   15   22    6   18   13   15   12    5 |     3    5    4 9999    4    3    5    6    5    1     4
  13  |    5   10    9   10   11    2    9   14    7   12    3 |     2    3    2    3    1    2    2    5    2    3     2
  14  |    8   14    8   11   11    4   16   11    8   18    4 |     2    4    2    2    2    2    3    3    2    3     2
  15  |    6   14    9    9   14    4   18   12   10   13    4 |     2    1    2 9999    2    2    2    4    3 9999     2
  16E |   14   21    6   15   24    7   17   13   15   22    6 |     4    3    4    4    6    3    3    4    4    7     3
  17  |    8   12   10   15   12    5   14   22   12   13    5 |     4    4    2 9999    2    2    2    7    4 9999     3
  18  |   11   28    6   14   12    5   21   10    8   14    4 |     3    3    3    3    3    2    2    3    3    3     2
  19  |   10   16   13   15   12    6   42   31   13   13    6 |     4    5    4    6    3    3    3    7    4    5     4
  20  |    9   12    4   11   15    4   13   13   11    8    3 |     3    3    2    3    2    2    2    4    2    2     2
  21  |   15   13    7   10   12    3   11   12   10   16    4 |     3    3    2    2    2    2    2    4    2    3     2
 X22  |   11   19    7   12   12    2   12   11    6  ---    4 |     4    6    4    3    3    3    3    4    3  ---     2
  23  |    9   22    8   11   10    5   13   17   13   16    5 |     3    2    2    3    2    2    2    3    2    4     2
  24  |    7   13    5    8    8    2   12    7    8   13    3 |     2    6    2    2    2    2    3    5    4    6     2
  25E |   11   17    5    7   12    3   14    9    8    8    3 |     3    5    3    4    4    3    3    4    3    3     3
  26E |   11   11    5   11   22    5   14    9   12   11    4 |     4    6    3    4    4    2    4    6    3    5     3
  27  |    6   12    4    7   11    5   12    6    8    6    2 |     3    3    2    3    2    2    3    5    4    3     2
  28E |    9   18    5    9   30    4    9   13   10    7    4 |     3    5    3    4    9    3    3    6    4    4     3
  29  |   11   21    7   12   13    3   16   13   13   14    4 |     3    3    2 9999    2    2    2    3    3    1     2
  30  |    9   10    5    7   12    3   13   11    9    7    3 |     3    5    2    3    2    3    3    4    3    2     2
  31  |    7   12   10   10   10    5   11   12   10   14    4 |     2    6    2 9999    2    2    3    3    3    1     2
  32  |    7   16    3    6    7    2   10    8    6    6    2 |     2    7    1    2    2    1    3    4    2    2     1
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    7   11   14    4   15   13   10   12      |T    3    4    2    3    2    2    2    4    3    3     2
 WRMS |    9   15    7   10   12    4   15   11    9   12      |NE   2    4    2    2    2    2    2    4    2    3     2
 MEDI |    9   13    6   10   12    4   13   11    9   12      |MD   3    4    3    3    2    2    3    4    3    3     2

Table 3.1935.6   GPS week: 1935   Day: 6   MJD: 57795.000                            

        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  |    5   11    5    8   13    5   16    7    9   10    3 |     3    4    2    2    3    2    4    3    3    4     2
   2  |   15   11    6   14   18    5   13   15   12   12    4 |     2    4    2    2    2    2    2    3    3    3     2
   3  |    8   15    6    5   10    4   10   14    8    9    3 |     3    5    2    2    2    2    3    3    2    3     2
  X4E |    3  ---  ---  ---  ---   43  ---  ---  ---  ---    0 |     4  ---  ---  ---  ---    3  ---  ---  ---  ---     4
   5  |    8   11    7    8   14    4   13   11    8    9    3 |     3    3    2 9999    2    2    2    4    3 9999     3
   6  |    9   14    4    9   13    4   10    8    7    7    3 |     3    4    2    3    3    2    3    2    2    3     2
   7  |    7   12   12    8    8    6   10   17   10   14    4 |     2    3    2    1    2    2    3    6    3 9999     2
   8  |    8   10    4    9   10    4   10    8    6    9    3 |     2    2    2    2    2    2    2    2    2    3     2
   9  |    7   13    7    7   12    3    9    7    8    6    3 |     3    3    2    2    2    2    2    2    2    2     1
  10  |    9   10    6    7    9    5   12   11    9   13    3 |     3    3    3    2    2    2    3    3    2    4     2
  11  |    8   14   14    9   10    5   12    9   10   13    4 |     2    4    3    2    2    2    2    2    2    2     2
  12E |   16   24    7   15   27    4   19   15   15   12    6 |     2    5    4 9999    4    3    5    5    5    1     3
  13  |    5   12   11    8    8    5   15   14   10   12    3 |     2    2    1    3    2    2    1    3    2    2     2
  14  |    9   13    9   11    9    4   12   14    9   16    4 |     2    3    2    2    2    2    1    3    1    3     1
  15  |    7   15    9   10   11    4   16   14   10   14    4 |     2    1    1 9999    2    2    1    3    2 9999     1
  16E |   20   23    7   15   20    9   13   13   14   28    6 |     3    3    4    4    4    3    3    3    3    5     3
  17  |    7   12   11   19   14    6   11   22   10   14    5 |     2    3    2 9999    2    2    2    5    3 9999     3
  18  |    9   27    8   11   12    6   18    8   11   14    4 |     3    3    2    2    3    2    2    2    2    2     2
  19  |    7   18   12   18   16    6   14   32   12   17    6 |     3    4    3    4    3    3    2    5    4    4     3
  20  |    8   13    6    7   12    3   14   16    8    9    3 |     3    2    2    2    2    2    2    3    2    2     2
  21  |   12   11    6   10   10    5    9   13    8   12    4 |     2    3    2    2    2    2    2    3    2    2     1
  22  |    8   13   10    7   12    4   10   10    8   10    3 |     3    5    3    3    3    2    3    3    2 9999     2
  23  |    9   20    9   10   12    6   11   16   14   16    5 |     3    2    2    2    2    1    2    2    2    3     2
  24  |    7   10    6    9    9    3   11   11    6    6    3 |     2    5    2    2    2    2    2    4    3    4     2
  25E |    8   14    5    7   18    3   13   12    8    7    3 |     3    4    3    3    3    3    3    3    2    3     2
  26E |   14   12    5   11   20    6   13   10   10    9    4 |     4    5    3    4    4    3    4    5    3    4     3
  27  |    6   12    5    8   10    4   11   10   10    6    3 |     2    3    2    2    2    2    3    3    3    2     2
  28E |   13   16    9   14   27    5   10   16   11   10    5 |     3    4    3    4    8    3    3    5    3    4     3
  29  |   12   24    7   12   12    3   15   12   14   13    5 |     2    2    2 9999    2    2    2    2    2    1     2
  30  |    6   11    5    7   10    4   10   11    8    7    3 |     2    4    2    2    3    2    2    3    2    2     2
  31  |    8   17   12   10    9    3   13   12   10   14    4 |     2    5    2    1    2    2    2    2    2    1     2
  32  |    8   10    4    6    7    4   16   12    9    5    3 |     2    5    1    2    2    1    2    3    2    2     2
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    8   11   14    5   13   14   10   12      |T    2    3    2    2    2    2    2    3    2    2     2
 WRMS |    9   15    8   10   13    5   13   12    8   11      |NE   2    3    2    2    2    1    2    3    2    2     1
 MEDI |    8   13    7    9   12    4   12   12   10   12      |MD   2    3    2    2    2    2    2    3    2    3     2



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 4.1935   GPS week: 1935   MJD: 57789.0-57795.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |U    4     4     9 |U   10    12    37 |U    5     6    14 |
emr | emr 2976 |     7     4    17 |    11    14    41 |     8     6    16 |
esa | esa 2976 |     5     4    11 |U   10    13    38 |     6     6    15 |
gfz | gfz 2880 |U    5     5    12 |U   23    30    82 |U    9     8    25 |
grg | grg 2975 |U    5     5    13 |U   11    15    48 |     7     7    18 |
igr | igr 2962 |     5     4    11 |    11    13    39 |     6     6    16 |
igs | igs 2976 |     4     4    11 |    10    12    38 |     5     6    15 |
jpl | jpl 2976 |     6     4    15 |    11    14    40 |U    8     6    16 |
mit | mit 2976 |     8    13    42 |U   12    14    43 |U   16    16    40 |



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 5.1935.0   GPS week: 1935   Day: 0   MJD: 57789.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     4     4    11 |  ----  ----  ---- |     6     5    15 |
emr | emr 2976 |     6     4    18 |  ----  ----  ---- |     8     7    20 |
esa | esa 2976 |     4     4    11 |  ----  ----  ---- |     6     5    17 |
gfz | gfz 2976 |     4     5    11 |  ----  ----  ---- |     7     6    18 |
grg | grg 2976 |     4     4    12 |  ----  ----  ---- |     7     5    18 |
igr | igr 2976 |     4     4    11 |  ----  ----  ---- |     6     6    17 |
igs | igs 2976 |     4     4    11 |  ----  ----  ---- |     6     5    16 |
jpl | jpl 2976 |     5     4    14 |  ----  ----  ---- |     8     6    18 |
mit | mit 2976 |    12    15    61 |  ----  ----  ---- |    28    25    44 |

Table 5.1935.1   GPS week: 1935   Day: 1   MJD: 57790.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     4     5    12 |     8    10    28 |     4     3    12 |
emr | emr 2976 |     5     4    18 |    11    15    35 |     7     5    16 |
esa | esa 2976 |     4     5    14 |     8    11    28 |     4     4    12 |
gfz | gfz 2976 |     4     5    15 |     8    10    32 |     4     4    14 |
grg | grg 2976 |     5     5    14 |     8     9    31 |     6     5    15 |
igr | igr 2976 |     5     4    14 |     8    10    29 |     4     4    13 |
igs | igs 2976 |     4     5    14 |     8    11    30 |     4     3    12 |
jpl | jpl 2976 |     6     5    16 |     8    11    33 |     7     6    13 |
mit | mit 2976 |    10    35   115 |    10    12    39 |    20    12    27 |

Table 5.1935.2   GPS week: 1935   Day: 2   MJD: 57791.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     5     8 |    12    19    46 |     5     7    15 |
emr | emr 2976 |     8     4    13 |    13    18    46 |     8     7    13 |
esa | esa 2976 |     5     5    11 |    11    19    47 |     5     6    15 |
gfz | gfz 2400 |     6     7    13 |    24    25    79 |    11    13    27 |
grg | grg 2975 |     7     6    16 |    11    18    47 |     8     8    21 |
igr | igr 2976 |     5     5     9 |    11    18    48 |     6     6    15 |
igs | igs 2976 |     5     5    10 |    12    18    48 |     5     6    15 |
jpl | jpl 2976 |     7     4    15 |    13    20    45 |     8     7    17 |
mit | mit 2976 |     5     6    12 |    13    19    46 |     9    12    23 |

Table 5.1935.3   GPS week: 1935   Day: 3   MJD: 57792.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     3     8 |     9     8    38 |     4     5    11 |
emr | emr 2976 |     7     4    19 |    10    11    41 |     7     5    14 |
esa | esa 2976 |     4     3    11 |    10     8    39 |     5     5    13 |
gfz | gfz 2880 |     6     4    15 |    36    53   137 |    17    11    59 |
grg | grg 2976 |     5     5    13 |    15    17    66 |     6     6    16 |
igr | igr 2880 |     5     4    10 |    13    10    42 |     5     6    16 |
igs | igs 2976 |     4     3    10 |    10     8    36 |     4     5    12 |
jpl | jpl 2976 |     6     5    17 |    11    10    41 |     7     5    15 |
mit | mit 2976 |    13    16    36 |    15    11    44 |     7     9    22 |

Table 5.1935.4   GPS week: 1935   Day: 4   MJD: 57793.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     4     8 |  ----  ----  ---- |     7     9    19 |
emr | emr 2976 |     7     5    15 |  ----  ----  ---- |     8     7    19 |
esa | esa 2976 |     5     4     8 |  ----  ----  ---- |     6     8    18 |
gfz | gfz 2976 |     5     4     9 |  ----  ----  ---- |     7     9    25 |
grg | grg 2976 |     6     5    10 |  ----  ----  ---- |     7     8    19 |
igr | igr 2976 |     5     4     7 |  ----  ----  ---- |     6     9    20 |
igs | igs 2976 |     5     4     8 |  ----  ----  ---- |     6     8    19 |
jpl | jpl 2976 |     7     4    15 |  ----  ----  ---- |     9     7    21 |
mit | mit 2976 |     6     4    12 |  ----  ----  ---- |    34    43   128 |

Table 5.1935.5   GPS week: 1935   Day: 5   MJD: 57794.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |  ----  ----  ---- |     6     5    14 |
emr | emr 2976 |  ----  ----  ---- |  ----  ----  ---- |     9     5    17 |
esa | esa 2976 |  ----  ----  ---- |  ----  ----  ---- |     6     6    14 |
gfz | gfz 2976 |  ----  ----  ---- |  ----  ----  ---- |     7     6    16 |
grg | grg 2976 |  ----  ----  ---- |  ----  ----  ---- |     8     7    16 |
igr | igr 2976 |  ----  ----  ---- |  ----  ----  ---- |     7     6    16 |
igs | igs 2976 |  ----  ----  ---- |  ----  ----  ---- |     6     6    14 |
jpl | jpl 2976 |  ----  ----  ---- |  ----  ----  ---- |     9     5    16 |
mit | mit 2976 |  ----  ----  ---- |  ----  ----  ---- |     6     7    19 |

Table 5.1935.6   GPS week: 1935   Day: 6   MJD: 57795.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     4     5    10 |  ----  ----  ---- |     5     8    14 |
emr | emr 2976 |     7     5    18 |  ----  ----  ---- |     9     9    15 |
esa | esa 2976 |     5     5    13 |  ----  ----  ---- |     7     9    15 |
gfz | gfz 2976 |     4     4    12 |  ----  ----  ---- |     8     9    17 |
grg | grg 2976 |     5     5    14 |  ----  ----  ---- |     9    12    19 |
igr | igr 2976 |     5     4    12 |  ----  ----  ---- |     7     8    16 |
igs | igs 2976 |     4     5    13 |  ----  ----  ---- |     7     8    15 |
jpl | jpl 2976 |     5     4    16 |  ----  ----  ---- |     8     7    14 |
mit | mit 2976 |     4     4    16 |  ----  ----  ---- |     7     8    16 |


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 6.1935   GPS week: 1935   MJD: 57789.500-57795.500

                                                         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 |      23      10      21     188     -2 |      15     42
            |      32      15      25      95      8 |       2
emr   uuuuu |     -37     -60      83      83     -3 |      38     60
            |      38      30      91      93      7 |       4
esa   uuuuu |      -2       0     -18      76      1 |      26     46
            |      11       6      36      37      3 |       2
gfz   uuuuu |      -9     -34      92     -42      3 |      11     40
            |      21      19      46     125      5 |       3
grg   uuuuu |     -12      16      59       3     -6 |       1     38
            |      13      12      41     134      8 |       2
igr   xxxxx |      16      28      14      76      3 |      -4     39
            |      14       7      59      50      7 |       3
irf   xxxxx |       9       1      18     -70      4 |      -4     38
            |      16       6      37      22      3 |       3
jpl   xxxxx |     -10     -17     106      32     -1 |      18     40
            |      31      17      49      53     12 |       4
mit   uuuuu |       9      22     -17    -205      1 |      13     38
            |      24      15      63      59      2 |       2
ngs   uuuuu |      -1      19    -138    -101      4 |       2     41
            |      22      12     103     134      6 |       3
sio   uuuux |      13       8     -13     -87      2 |      39     53
            |      28      16      73     108      7 |       2


Table 7.1935.0   GPS week: 1935   Day: 0   MJD: 57789.500

                                                         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 |      59      22      33     173      8 |      15     43
emr   uuuuu |     -96     -63      77      12     -5 |      44     67
esa   uuuuu |      -9       4       2     114     -3 |      27     48
gfz   uuuuu |      24     -18      51      56     -6 |      14     43
grg   uuuuu |     -17       6       8     240      7 |       4     40
igr   xxxxx |     -10      21     -24       7    -10 |       1     43
irf   xxxxx |     -15       5     -54    -115      5 |      -4     41
jpl   xxxxx |     -51      -1      20     112    -16 |      27     49
mit   uuuuu |     -30      17    -112    -285      1 |      16     42
ngs   uuuuu |      21      12      -9    -190     -7 |       6     45
sio   uuuux |     -39     -18     -74    -228      2 |      40     55

Table 7.1935.1   GPS week: 1935   Day: 1   MJD: 57790.500

                                                         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 |      46      24      45     329      0 |      12     41
emr   uuuuu |     -78     -40     167     -12      5 |      39     62
esa   uuuuu |      -6       1     -38      77      3 |      23     44
gfz   uuuuu |      -4     -70      91     174      3 |       8     39
grg   uuuuu |      -6       9      36      83     -8 |       1     38
igr   xxxxx |      11      26     -75      18      0 |      -5     39
irf   xxxxx |       0      -7      10     -73      7 |      -8     39
jpl   xxxxx |     -41     -34      82     -45    -13 |      19     42
mit   uuuuu |      10      28     -43    -293     -1 |      11     38
ngs   uuuuu |       9      20    -118    -268      2 |       0     41
sio   uuuux |      -7      21     -44    -246     11 |      36     51

Table 7.1935.2   GPS week: 1935   Day: 2   MJD: 57791.500

                                                         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 |      55     -17       8     188      6 |      15     43
emr   uuuuu |      -9      -9     -67     156     -7 |      41     64
esa   uuuuu |      19      -5     -39      19      2 |      26     47
gfz   uuuuu |     -33     -18     124     -48      8 |      11     41
grg   uuuuu |     -21      40     110     -34    -15 |       3     39
igr   xxxxx |      10      21      68      85      6 |      -3     40
irf   xxxxx |      -4       1      37     -68      4 |      -5     40
jpl   xxxxx |     -35      14     156      20      8 |      19     42
mit   uuuuu |     -18       4     -22    -197      1 |      13     39
ngs   uuuuu |     -27      15    -140     -44      3 |       1     42
sio   uuuux |      18       8      62     -22     -4 |      39     55

Table 7.1935.3   GPS week: 1935   Day: 3   MJD: 57792.500

                                                         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      24     -18     156     -8 |      16     43
emr   uuuuu |     -35     -55     178      57      2 |      38     61
esa   uuuuu |       1      -4      21      84      3 |      26     47
gfz   uuuuu |      -9     -29      28    -103      4 |      11     41
grg   uuuuu |      -7      19     106      -2    -11 |       2     39
igr   xxxxx |      32      25      86     102      3 |      -4     40
irf   xxxxx |      17       8      31     -56      5 |      -5     40
jpl   xxxxx |      12     -24      80      15     -7 |      18     41
mit   uuuuu |      15       6     -12    -173      2 |      12     39
ngs   uuuuu |     -13      10    -198       6     10 |       1     42
sio   uuuux |      28       7      80     -85     -5 |      39     54

Table 7.1935.4   GPS week: 1935   Day: 4   MJD: 57793.500

                                                         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 |     -26       2      -1      71      0 |      13     41
emr   uuuuu |       9     -66      -2      78     -4 |      32     54
esa   uuuuu |      -9      -4      34      41      4 |      23     44
gfz   uuuuu |     -37     -25      66    -163      6 |       7     39
grg   uuuuu |       6      12      34      11    -11 |      -3     38
igr   xxxxx |      23      39      42     154      4 |      -8     38
irf   xxxxx |      22      -6      11     -45      8 |      -7     40
jpl   xxxxx |      20     -22     127      17     18 |      12     35
mit   uuuuu |      30      19     -49    -150      2 |       9     37
ngs   uuuuu |      13      44     -15      59      3 |      -2     40
sio   uuuux |      47      -7    -121      24      6 |      35     51

Table 7.1935.5   GPS week: 1935   Day: 5   MJD: 57794.500

                                                         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 |      -6       2      35     103     -2 |      19     40
emr   uuuuu |      -9     -96     146     254    -15 |      40     55
esa   uuuuu |     -13      -1     -54     123      0 |      30     45
gfz   uuuuu |       1     -31     131    -179      0 |      14     37
grg   uuuuu |     -33      20      33    -181     -3 |       3     34
igr   xxxxx |      21      37      36      86      9 |      -2     35
irf   xxxxx |      23       3      26     -75      3 |       1     34
jpl   xxxxx |      10     -28     156      91      5 |      18     37
mit   uuuuu |      25      41      39    -176      3 |      15     35
ngs   uuuuu |      19      20    -184     -14      9 |       4     37
sio   uuuux |      22      20     -10     -46      8 |      42     54

Table 7.1935.6   GPS week: 1935   Day: 6   MJD: 57795.500

                                                         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      45     297    -16 |      16     41
emr   uuuuu |     -38     -90      85      35      5 |      34     53
esa   uuuuu |       2      12     -49      72     -1 |      27     45
gfz   uuuuu |      -6     -46     152     -29      7 |      11     38
grg   uuuuu |      -6       7      89     -97     -1 |      -2     37
igr   xxxxx |      24      26     -33      82     11 |      -5     37
irf   xxxxx |      25       2      67     -60      0 |      -1     36
jpl   xxxxx |      19     -23     122      15      0 |      15     37
mit   uuuuu |      30      40      83    -159     -2 |      13     36
ngs   uuuuu |     -29      10    -300    -256      7 |       2     38
sio   uuuux |      22      26      19      -3     -5 |      41     53



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