[IGSREPORT-26454] Wk 2042 IGS Final Orbits

acc acc at igs.org
Thu Mar 14 22:52:36 PDT 2019


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2042   (Feb 24, 2019 - Mar 02, 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:

igs2042[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2042[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2042[0-6].cls  IGS GPS clock combination summary report.
igs20427.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20427.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   | BRMU LMMF MAR6 NAUR TIXI BRMU LMMF MAR6 NAUR TIXI
                0  |  EMR   | BJNM TLSE BJNM TLSE
                0  |  GFZ   | ALRT GODE POHN ALRT GODE POHN
                0  |  GRG   | 18 18 DARW GLSV KRGG LHAZ NRMD GLSV KRGG LHAZ STJO
                0  |  MIT   | HARB MAJU MBAR MDO1 PADO PIE1 HARB MAJU MBAR MDO1
                0  |  MIT   | PADO PIE1
                1  |  COD   | 18 18 MAR6 SEYG SOFI TIXI TLSE LHAZ MAR6 SOFI TIXI
                1  |  COD   | TLSE
                1  |  EMR   | BJNM
                1  |  ESA   | 18 18 MGUE REUN SEYG MGUE REUN SEYG TLSE
                1  |  GFZ   | ABMF BJNM GODE POHN ABMF GLPS GODE GUAT MAL2 POHN
                1  |  GRG   | GLSV LHAZ MAL2 RABT GLSV LHAZ RABT TLSE
                1  |  JPL   | SEYG
                1  |  MIT   | PALM BJNM PALM WAB2
                2  |  COD   | 18 18 BOR1 BRMU MAR6 MDO1 TASH TIXI TLSE BRMU MAR6
                2  |  COD   | MDO1 TIXI TLSE
                2  |  EMR   | AREQ CEDU GOL2 HARB HOB2 IENG JOZE KERG KIRU KOKB
                2  |  EMR   | MAS1 MATE NIST NNOR NYAL ONSA OPMT PERT PIE1 PTBB
                2  |  EMR   | SUWN THTI TIDB TLSE TSKB TWTF VILL
                2  |  ESA   | 18 18 BRMU MAL2 TLSE ANKR BRMU MAL2
                2  |  GFZ   | ABMF BJNM GODE POHN USN7 ABMF BJNM BOR1 GODE POHN
                2  |  GFZ   | TASH USN7
                2  |  GRG   | GLSV TLSE
                2  |  JPL   | 21 LAUT
                3  |  COD   | BOR1 PBRI TIXI YAR2 BOR1 PBRI TIXI
                3  |  EMR   | PIE1
                3  |  ESA   | 18 18
                3  |  GFZ   | BJNM GODE PIE1 POHN BJNM GODE PIE1 POHN
                3  |  GRG   | ABMF ADIS GLSV ADIS GLSV
                3  |  JPL   | BRMU
                3  |  MIT   | PALM PALM
                4  |  COD   | BRMU NIST TIXI WES2 BRMU NIST TIXI WES2
                4  |  EMR   | YELL FAIR YELL
                4  |  ESA   | TRO1 TRO1
                4  |  GFZ   | GODE POHN ANKR AUCK CHTI GODE MDVJ NYA1 POHN
                4  |  GRG   | CHTI GLSV KRGG GLSV
                4  |  MIT   | PALM ANKR NNOR PALM REYK SYOG
                5  |  COD   | KRGG NAUR TLSE CRO1 KRGG LHAZ NAUR
                5  |  EMR   | KERG
                5  |  ESA   | BRMU TLSE BRMU
                5  |  GFZ   | GODE POHN GODE POHN
                5  |  GRG   | ABMF ADIS GLSV LHAZ ABMF ADIS GLSV LHAZ
                5  |  JPL   | INVK MCM4
                6  |  COD   | 18 ANKR NAUR NRMD TIXI ANKR NAUR NRMD TIXI
                6  |  EMR   | PRDS
                6  |  GFZ   | GODE POHN STJO GODE POHN STJO
                6  |  GRG   | ABMF BAKE GLSV KRGG NNOR ABMF GLSV NNOR

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                2  |  EMR   | ~14:35 | ~ 1.56 ns
                2  |  GRG   | ~01:30 | ~ 0.10 ns

 6. 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.

 7. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                1  |  ESA   |  18
                2  |  GRG   |   4
                3  |  ESA   |  18

 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 |    -.5    -.6    -.8     -11      5      1     .15
       EMR  |   0 |    3.8   -7.0    7.5       1     33    -46     .47
       ESA  |   0 |    1.0     .4    1.6     -16     14     50     .11
       GFZ  |   0 |     .2    -.5    -.4     -19    -16      1     .27
       GRG  |   0 |    8.1   -3.4   21.8      27      7     89     .17
       JPL  |   0 |   10.7   -1.7    8.8       1     -1      2     .10
       MIT  |   0 |    5.3    -.9    2.7     -20     24    -14     .39
       NGS  |   0 |     .5   -6.3    8.3     -31    -14     -8     .39
       SIO  |   0 |    3.5   -1.9   -4.0     -26      2     -2     .38

       COD  |   1 |    -.7    -.4     .0     -10     17     -4     .05
       EMR  |   1 |    7.7   -9.9    6.3      10     13     21     .31
       ESA  |   1 |     .5    -.6    1.1      -6     16     23    -.01
       GFZ  |   1 |     .3    -.3    -.0     -19    -12     -9     .11
       GRG  |   1 |   10.4   -5.5   16.8      14      2     99     .05
       JPL  |   1 |   13.1   -7.9   11.2       0     -1      2     .02
       MIT  |   1 |    2.0   -4.8    4.1     -26     44     -2     .33
       NGS  |   1 |    2.3   -2.3    7.6     -49    -24     47     .16
       SIO  |   1 |    5.3   -4.0   -8.1     -29     -4      0     .30

       COD  |   2 |     .2    -.8     .1     -11     23     -5    -.06
       EMR  |   2 |    4.0   -8.7    5.3       2     38    -25     .12
       ESA  |   2 |     .7    -.9    1.1     -17     19     30    -.06
       GFZ  |   2 |     .5    -.2    -.1      -9    -22    -12     .14
       GRG  |   2 |    6.2   -7.1   15.5      33      2     94    -.25
       JPL  |   2 |    1.8   -2.9    5.0       5     -2    -11    -.0 
       MIT  |   2 |    2.1   -7.1    7.9     -61     48     -2     .17
       NGS  |   2 |    -.9   -9.9    8.5     -63      3    -25     .18
       SIO  |   2 |    4.2   -4.8   -3.4     -51     17      0     .14

       COD  |   3 |    -.3    -.6     .3     -10     14      2    -.14
       EMR  |   3 |    3.8   -9.9    5.8     -45     -9     27     .24
       ESA  |   3 |     .1    -.5    2.4     -21     19     53    -.35
       GFZ  |   3 |    -.1    -.1    -.1     -12    -10     -2    -.0 
       GRG  |   3 |    2.3  -10.8   21.3      23     -1    116    -.17
       JPL  |   3 |    1.8   -9.5    8.9      11     -9     -8    -.25
       MIT  |   3 |   -1.9   -9.2    4.4     -42     37     10    -.01
       NGS  |   3 |   -1.1   -8.3   18.9    -136    -20     24    -.08
       SIO  |   3 |    2.7   -6.9   -5.8     -49     16     -4     .04

       COD  |   4 |    -.2    -.1     .7      -3     24      1    -.18
       EMR  |   4 |    -.3  -13.4    7.2     -32    -10      7     .36
       ESA  |   4 |    -.6     .3    2.2     -24     14     46    -.23
       GFZ  |   4 |     .0    -.2     .3     -17    -22     -6     .06
       GRG  |   4 |    4.3  -13.2   14.6      21      0     95    -.15
       JPL  |   4 |    6.6  -14.4    9.1      12     -4    -16    -.36
       MIT  |   4 |    -.1   -9.9    3.5     -55     34     23    -.08
       NGS  |   4 |    3.0  -18.5   19.0    -200    -45      7    -.04
       SIO  |   4 |    4.2   -9.5   -3.2     -42     23      0     .07

       COD  |   5 |    -.3    -.3    -.1      -7     14     -9     .09
       EMR  |   5 |     .4   -5.6    3.9      -9      7    -43     .34
       ESA  |   5 |    -.3    -.2     .6     -22     17     31    -.13
       GFZ  |   5 |    -.1    -.0    -.3     -13    -22     -8     .18
       GRG  |   5 |    4.9   -6.5   14.0      18     -8    100     .11
       JPL  |   5 |   -1.8   -8.4    1.4       1      0      2    -.17
       MIT  |   5 |    1.0   -4.5    -.1     -47     40     19     .12
       NGS  |   5 |   -5.9  -12.6   11.6    -139     30    -17     .17
       SIO  |   5 |    2.1   -6.1   -8.6     -41     -4      5     .23

       COD  |   6 |    -.3    -.3    -.0     -12     18     -8     .06
       EMR  |   6 |    -.6   -8.8    1.0     -33     14    -46     .45
       ESA  |   6 |    -.5    -.5     .5     -15     12     22    -.14
       GFZ  |   6 |    -.1    -.3    -.1     -11    -23      3     .09
       GRG  |   6 |    7.6   -6.9    7.2      14    -17    101    -.04
       JPL  |   6 |    4.6  -11.3    8.5       1      0      1    -.01
       MIT  |   6 |    -.0   -5.2     .1     -25     27    -13     .17
       NGS  |   6 |   -1.8  -11.7   12.1    -145    -13     -3     .16
       SIO  |   6 |    3.7   -4.5   -9.9     -36     12      3     .34


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 1.2042.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2042.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 2.2042.[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 3.2042.[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 5.2042.0-6). 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 2042 summary.                       (Feb 24, 2019 - Mar 02, 2019)

Table 1.2042.a   GPS week: 2042   MJD: 58538.000-58544.000

         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  254|    0     0     0     0     5    11  -.03    8    8 |    -367    -273      9    138
        |    0     0     0    11     7    14   .02           |     235     323
emr   79|    1    -2     0     0   -18     3   .25   13   13 |  173714    -123     15    155
        |    1     0     0    12     9    10   .03           |   15133     719
esa  150|    0     0    -1   -14    -1    10  -.03   22    8 |    -144   -1338      7    229
        |    0     0     1     8     7    18   .02           |     613    1043
gfz  185|    0     1    -1    -9     4    -8   .07   10   10 |     -47     -80     12    162
        |    0     0     2    13     8     9   .02           |     269     602
grg  106|    0    -1     3    11    27   -20  -.10   13   13 |      61    -127     10    168
        |    1     0     2    21    14    48   .03           |     157     259
igr  n/a|   -1     1    -2    13   -12    -2  -.03    4    4 |    5001    -255     10     69
        |    0     0     0     9     7     8   .01           |     688     731
jpl   80|    0     0     3    29    -5     2   .22    8    8 |  215346    -109      9    140
        |    0     0     0    11    14    13   .02           |     712     728
mit  348|    0    -1    -7    -4   -10    -5  -.22   16   14 |      90    -135     86   1380
        |    0     0     1    41    26     8   .02           |     644     345
ngs  207|   -1     0     2    -2     1     5  -.08   11   11 |    -402    -232   1012   2278
        |    1     0     2    18    18    18   .02           |     175     242
sio  328|    0     1    -3   -22   -10    -8  -.13   13   13 |     ---     ---    ---    ---
        |    0     0     1    40    19    22   .06           |     ---     ---


Table 1.2042.b   GPS week : 2042   MJD: 58538.000-58544.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    3    3    3    3    3    3    3 |
   2  |    4    4    4    4    5    4    4 |
   3  |    4    4    4    4    4    4    3 |
   4  |   36   17    0   30   18   32   22 |
   5  |    4    4    5    5    4    5    4 |
   6  |    3    4    3    3    4    0    3 |
   7  |    4    4    4    3    4    4    4 |
   8  |    3    3    3    3    3    4    3 |
   9  |    3    3    3    3    3    4    3 |
  10  |    4    4    4    4    4    3    3 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    5    5    5    5    4    4    4 |
  14  |    5    5    5    5    5    5    5 |
  15  |    4    4    4    4    4    4    4 |
  16  |    5    5    5    5    5    5    5 |
  17  |    4    4    4    4    4    4    3 |
  18  |    3    3    3    3    3    3    3 |
  19  |    4    4    4    4    4    4    4 |
  20  |    4    4    4    4    4    4    4 |
  21  |    5    4    4    4    4    4    4 |
  22  |    5    4    4    4    4    4    4 |
  23  |    5    5    5    5    5    5    5 |
  24  |    4    4    4    3    4    3    3 |
  25  |    3    3    3    3    3    3    3 |
  26  |    4    4    4    4    4    3    4 |
  27  |    3    3    3    3    3    3    3 |
  28  |    3    4    4    4    4    4    3 |
  29  |    4    4    5    4    4    4    4 |
  30  |    3    3    3    3    3    3    3 |
  31  |    4    4    4    4    4    4    4 |
  32  |    3    3    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 2.2042.0   GPS week: 2042   Day: 0   MJD: 58538.000                            

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  254|    0    -1     0    10     3    15  -.06    9    9 |    -488     -90     11    129
emr   80|    2    -3     1    13   -19     6   .28   13   13 |  179154    -189     14    159
esa  150|    0     0    -1   -10    10    26  -.04    8    8 |    -791    -356      8    214
gfz  183|    0     0     2   -22    19    -3   .04   11   12 |      -7    -461     11    154
grg  105|    0    -1     4     5    29   -84  -.12   14   14 |     123    -332     13    191
igr  n/a|   -2     0    -3     0    -7     4  -.05    5    5 |    5055    -530     10     77
jpl   80|    0     2     3    17   -18    25   .22    9    8 |  215123    -383      9    139
mit  348|    0    -1    -6   -35   -32     8  -.21   16   14 |    -115      89     53    224
ngs  212|    0     0     0    28    25    -4  -.11   10   10 |    -505     -80    980   2570
sio  325|    0     1    -4   -44   -37   -13  -.04   13   14 |     ---     ---    ---    ---

Table 2.2042.1   GPS week: 2042   Day: 1   MJD: 58539.000                            

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  258|    0     0     0     1    13     6  -.03    7    7 |    -134    -633     10    132
emr   80|    0    -1     0    -8    -2    18   .25   13   13 |  139423    -381     14    140
esa  150|    0     1    -1   -10   -11     5  -.04   76   10 |    -456   -1424      8    223
gfz  188|    0     1     0    -6    10   -17   .05   11   12 |      82    -374     14    196
grg  105|   -2     0     1   -12    45   -58  -.03   14   14 |     283    -431     11    147
igr  n/a|   -1     0    -2    10    -2     9  -.03    5    5 |    4589     -75     11     74
jpl   80|    0     0     4    10    -7     7   .21    8    8 |  214764      63     10    147
mit  348|    0    -1    -7    47   -27   -19  -.23   16   15 |     195    -599     78   1572
ngs  213|   -1     0     1   -12    -4    20  -.04   10   10 |    -364    -329   1150   2265
sio  332|    0     0    -1    12   -27     0  -.13   13   14 |     ---     ---    ---    ---

Table 2.2042.2   GPS week: 2042   Day: 2   MJD: 58540.000                            

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  259|    1     0     0    14    18   -18  -.01    8    7 |    -537      11     10    140
emr   80|    1    -2    -1     0   -29    15   .26   14   14 |  178472     969     19    162
esa  150|    0     0     0    -2     2    29  -.07    8    8 |    -364    -570      7    216
gfz  189|    0     1     0    14    -3   -24   .06   10   10 |    -381     482     10    134
grg  109|    0    -1     3    33    41   -56  -.12   14   14 |      43    -228     12    169
igr  n/a|   -1     1    -2    30   -14    -6  -.01    4    4 |    4343     737      9     67
jpl   80|    0     1     2    35   -26    -3   .22    8    8 |  214612     801      7    142
mit  348|    0    -1    -6   -71     1    -6  -.19   16   14 |     455    -433    132   1610
ngs  206|   -2     0     0    -3    11    35  -.08   10   10 |    -571      80    984   2053
sio  333|    0     0    -3   -99    -7    19  -.08   15   14 |     ---     ---    ---    ---

Table 2.2042.3   GPS week: 2042   Day: 3   MJD: 58541.000                            

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  254|    0     0    -1   -18    -1    15  -.05    8    8 |    -695     173      9    137
emr   80|    3    -3    -1    -8   -26    -1   .25   13   13 |  179426     616     14    137
esa  150|    0     0    -2   -22    -3    28  -.00   36   10 |     186   -1143      9    236
gfz  189|    0     2    -1    -7    -3    -9   .07   10   11 |     333    -601     11    167
grg  109|   -1    -1     5    30    23     6  -.12   13   13 |    -163     192     10    155
igr  n/a|   -1     1    -4    21   -10    -3  -.02    4    4 |    5386     483     10     61
jpl   80|    0     1     1    34    -6    -9   .22    8    8 |  215655     666      9    138
mit  349|    0    -1    -8    34    12    -9  -.24   16   14 |    -130     371     79   1456
ngs  206|   -1     0     7    -5     5   -12  -.08   10   10 |    -556     -52    830   2318
sio  326|    2     1    -4   -13    21   -15  -.16   12   12 |     ---     ---    ---    ---

Table 2.2042.4   GPS week: 2042   Day: 4   MJD: 58542.000                            

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  239|    0     0     0   -10    -1    26  -.01    9    9 |    -239    -440      9    167
emr   80|    0    -2     0     7   -10    -3   .26   13   13 |  180230    -809     15    157
esa  150|    0     0     0   -25     3     9  -.02    8    8 |    -610   -1834      9    269
gfz  184|    0     1    -4   -25     3    -4   .09    9   10 |     192    -771     15    176
grg  108|   -1    -1     6    34    31   -20  -.07   13   13 |      71    -198      9    167
igr  n/a|   -1     2    -3    12   -15   -16  -.03    4    4 |    6090   -1185     10     66
jpl   80|    0     0     3    43    15   -13   .21    8    8 |  216397    -864     11    131
mit  348|    0    -2    -7    12   -11    -1  -.20   16   14 |     758    -219     50   1560
ngs  205|    0     0     3   -30   -27     4  -.09   11   11 |    -328    -347    980   2357
sio  328|    0     1    -4    15   -12   -27  -.20   13   13 |     ---     ---    ---    ---

Table 2.2042.5   GPS week: 2042   Day: 5   MJD: 58543.000                            

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  256|    0     0     0     8     1    16  -.03    8    8 |     -42    -671      8    123
emr   78|    0    -2    -1    15   -25     0   .20   13   13 |  180182   -1030     17    170
esa  150|    0     0     0   -20    -6   -10  -.02    8    8 |    1017   -3391      8    243
gfz  185|    1     1    -3   -10     5    -1   .11   10    9 |    -288     656     13    163
grg  103|    0     0     2     1    14    33  -.12   12   12 |     183    -159     10    169
igr  n/a|    0     1    -2     5   -24    -5  -.01    5    5 |    5404   -1089     10     62
jpl   80|    0     0     2    38     1     0   .22    8    8 |  216109   -1129      9    139
mit  348|    0    -1    -8   -17    29    -8  -.22   16   15 |     617    -296    149   1516
ngs  207|   -1     0     4    -5   -15   -16  -.06   10   10 |     -63    -653   1155   2172
sio  328|    0     1    -3   -34    -8    15  -.18   13   13 |     ---     ---    ---    ---

Table 2.2042.6   GPS week: 2042   Day: 6   MJD: 58544.000                            

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  258|    0     0     0    -1     2    16  -.04    8    8 |    -435    -265      8    138
emr   80|    0    -1     0   -18   -17   -11   .22   13   13 |  179117     -41     15    160
esa  150|    0     0    -1   -14    -5   -13  -.02    7    7 |       6    -648      6    202
gfz  183|    0     1     0    -8     1     1   .06    9    9 |    -266     503     11    147
grg  108|    0     0    -2   -15     3    36  -.09   12   11 |    -113     261     11    184
igr  n/a|   -1     1    -1    12   -13    -1  -.03    4    4 |    4141    -126     10     82
jpl   80|    1     1     3    28     4    12   .26    8    8 |  214763      83      9    146
mit  348|    0    -1    -5    -4   -46    -2  -.22   16   13 |   -1148     136     64   1727
ngs  204|   -2     0     3    14    14     9  -.10   11   11 |    -431    -248   1009   2216
sio  328|    0     0     0     4     0   -41  -.10   13   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 3.2042.0   GPS week: 2042   Day: 0   MJD: 58538.000                            

        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    6    7    8   10    5    7   10    7   12    2 |    20   26   21   19   20   19   25   19   19   25    20
   2  |    9   15   10    7   11    4    8   19   13   17    4 |    30   31   30   31   28   26   30   28   27   26    27
   3E |    9    8   10   23   16    6    9    9    8    9    4 |    26   29   28   24   30   25   27   25   26   27    25
  X4  |   24  ---  ---  ---   52   36  ---  ---  ---  ---   36 |    48  ---  ---  ---   99   48  ---  ---  ---  ---    64
   5E |    9   15    8    8   25    3    9   12   10    8    4 |    41   40   39   42   48   39   40   39   41   44    40
   6  |    9   11    9    5   10    3    8   13    6   10    3 |    20   26   21   19   16   18   25   19   17   24    20
   7  |    6   11    7    6   10    3    8   16   12   13    3 |    26   30   27   29   23   25   30   26   24   27    26
   8  |    6    6    7   11   13    4    8   10    7    8    3 |    23   28   24   23   21   21   24   23   22   22    22
   9  |    8    9    5    8   12    5   10    8    5    8    3 |    35   39   34   37   35   32   38   33   35   39    35
  10E |    7   13    9   12   18    3    9   12    7   12    3 |    26   29   30   22   32   25   29   28   28   30    27
  11  |    8   10   15    9   15    6    9    9    8    9    3 |    41   46   33   43   43   39   44   39   42   36    39
  12  |    9   25    5   10   22    5   10   19   14   15    5 |    28   45   31   35   33   29   36   25   29   26    30
  13  |    8   11   10   11    9    4   13   18   12   22    4 |    24   31   19   22   23   24   30   33   27   25    22
  14  |   11    8    7   10   11    7    8   36   14   19    5 |    32   37   35   35   35   36   36   46   39   37    34
  15  |    8   11    9    6   15    5    9   16   10   13    3 |    47   50   44   45   45   45   50   43   47   47    46
  16  |   10   25    8   15   14    7    7   17   14   18    5 |    41   46   37   44   36   34   37   32   35   32    36
  17  |    7   11    7    9   12    3   10   14   11   11    3 |    35   39   33   35   33   33   37   32   33   31    33
  18  |    5    9    9    7   11    3    8    7    7   12    3 |    27   30  122   30   29   28   31   28   28   35    29
  19  |    8   15    7    9   12    5    9   17   15   16    4 |    21   25   23   23   24   24   23   32   30   29    23
  20  |   12   12    5    8   17    3    9   16   10   14    4 |    27   22   23   25   26   24   25   25   24   24    23
  21  |   12    9   10   10   13    5    9   20   15   17    4 |    29   28   29   30   25   26   31   23   23   23    26
  22E |   14   11    5   24   20    7    6   12   12   12    4 |    86   87   89   84   84   85   88   87   93   90    87
  23  |    8   23    8   10   11    6    9   27   13   22    5 |    38   35   40   39   39   37   39   43   40   42    37
  24  |    5    9   10   12   16    3    7   15    9   13    3 |    20   26   21   23   15   18   28   18   21   29    21
  25  |   10   11    4   12   15    5    7    9    8    8    3 |    24   29   27   29   25   25   28   28   26   28    26
  26  |   10   16    9   12   16    4    9   11    8    8    3 |    31   30   31   29   32   26   31   28   27   26    28
  27  |   10    7    6    7   11    4    7   11    6    8    2 |    28   30   26   24   26   23   26   23   23   21    24
  28  |    7    9    5    6   15    5    8   13    9   12    3 |    34   37   33   36   32   37   34   40   37   37    34
  29  |    8   21    8    6   15    5    8   16   13   14    4 |    64   66   67   67   63   67   66   69   70   66    66
  30  |    6   10   10    7   11    3    8   11    7   11    3 |    26   39   32   29   28   29   36   28   27   35    30
  31  |    8   12    7    9   11    4    8   21   12   16    4 |    54   54   52   54   55   53   55   53   56   55    53
  32  |   10   10    4    7   11    4    9   10    7   10    3 |    35   38   36   37   38   35   39   29   36   35    35
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    8   11   14    5    9   16   10   13      |T   33   37   36   34   35   32   36   33   33   34    34
 WRMS |    9   13    8   12   14    5    8   14   10   14      |NE  32   35   35   33   33   31   34   32   32   32    32
 MEDI |    8   11    8    9   13    4    8   13   10   12      |MD  29   31   31   30   32   28   31   28   28   30    29

Table 3.2042.1   GPS week: 2042   Day: 1   MJD: 58539.000                            

        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    6    9    8   13    5    6    8    5    9    2 |    23   30   25   23   24   24   27   26   26   29    24
   2  |    7    8   12    6   11    4    9   19   14   17    4 |    24   26   28   26   22   21   26   22   25   22    23
   3E |   10   11   10   16   17    6   10   10   14   12    4 |    30   32   30   26   35   29   31   29   33   30    29
  X4  |   10  ---  ---  ---   27   38  ---  ---  ---  ---   17 |    48  ---  ---  ---   48   37  ---  ---  ---  ---    47
   5E |    8   11    7   17   17    5   10   18   12   11    4 |    30   29   30   32   35   30   30   28   29   31    29
   6  |    7    9   12    7   11    4    8   13   10    9    3 |    17   25   23   18   17   17   25   19   22   24    19
   7  |    6   12    6    5   10    4   11   16   13   15    3 |    21   26   22   26   23   22   27   23   23   22    22
   8  |    7    8    7    9   13    5    8    9    6    6    2 |    19   22   23   19   21   18   21   20   19   18    19
   9  |    6   11    6   10   11    4    8    8    7    7    2 |    28   32   27   35   31   29   32   28   28   31    29
  10E |   10   13    9    9   17    4    8   12    7   12    3 |    28   27   28   25   33   25   26   27   27   28    26
  11  |    7    9   15   13   16    6   10    7    4    9    3 |    37   44   31   42   42   38   42   38   42   35    38
  12  |    8   26    5   11   20    6    8   22   13   15    5 |    26   37   26   32   31   25   31   19   24   22    26
  13  |    7   12   11   13    8    3   11   22   14   19    4 |    22   33   22   25   23   24   31   27   27   23    23
  14  |   10    8    8    9   12    6    8   33   13   17    4 |    25   28   25   31   29   29   28   36   31   25    25
  15  |    7   10    9    8   15    4    7   19   11   13    3 |    37   38   32   35   35   34   37   36   36   37    35
  16  |    7   20   10   25   16    6    8   16   13   17    5 |    25   32   24   37   25   24   26   18   26   21    24
  17  |    7   15    8   11   13    4    9   14    8   12    3 |    32   35   32   31   31   29   33   31   33   29    30
  18  |    6   11  421    9   12    6    7    9    8    9    3 |    21   23  274   23   20   21   22   19   22   25    21
  19  |    8   20    9   11   13    5    9   16   12   15    4 |    24   22   22   27   23   23   23   26   28   22    22
  20  |   10   14    6   11   19    3    8   16   10   14    4 |    29   24   24   27   30   24   25   25   25   24    25
  21  |    9    8    9    9   12    5    6   19   13   17    4 |    28   28   27   30   24   24   30   20   23   22    25
  22  |    7   12    6   18   19    6    8   12   16   11    4 |    48   52   53   49   47   50   51   49   53   53    50
  23  |    7   26   10   10   13    7    8   27   13   19    5 |    31   29   33   34   33   32   30   34   29   33    29
  24  |    5    9   11   10   15    3    7   18    7   10    3 |    21   29   23   24   16   20   28   17   21   28    22
  25  |    7   12    6   13   13    4    7   10    7    7    3 |    24   25   25   28   22   22   26   24   22   25    23
  26  |    8   18    7   13   17    3    8   10    9    7    3 |    19   24   20   22   26   18   22   22   22   21    19
  27  |    7    9    6    8   11    4    7   11    6    9    3 |    21   23   22   21   22   19   23   21   21   18    20
  28  |    6    8    6    8   18    6    9   13   11   13    3 |    26   26   25   27   27   25   24   29   26   27    24
  29  |    6   17    8    9   14    6    8   18   12   13    4 |    52   55   55   56   51   56   56   56   59   56    54
  30  |    6    9   10    5   10    4    7   12    7   11    3 |    25   32   28   27   25   24   32   20   25   30    27
  31  |    7   13    9    8   10    3    9   22   11   14    4 |    43   44   38   42   44   41   43   38   43   42    41
  32  |    7    8    5    8   11    3    7   10    6    7    2 |    27   30   26   26   30   27   31   22   30   26    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   13   76   11   14    5    8   16   10   13      |T   28   31   36   29   29   27   30   27   29   28    28
 WRMS |    7   13   10   12   14    5    8   15   10   14      |NE  27   30   36   29   28   26   29   26   28   27    27
 MEDI |    7   11    9    9   13    4    8   14   11   12      |MD  26   29   26   27   27   24   28   26   26   26    25

Table 3.2042.2   GPS week: 2042   Day: 2   MJD: 58540.000                            

        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    7    9    8   11    5    7    5    6    8    2 |    23   33   28   23   22   25   31   26   28   31    26
   2  |    7   11    9    8   12    4    7   20   12   19    4 |    21   24   24   27   22   21   24   24   23   28    22
   3E |   10    8   11   17   13    4   11   11    7   10    4 |    33   37   39   31   33   36   38   33   39   37    34
  X4  |    2  ---  ---  ---   81   63  ---  ---  ---  ---    0 |    78  ---  ---  ---   69   46  ---  ---  ---  ---    77
   5  |    9   19    6   15   25    6   10   16   11   25    5 |    22   28   23   27   26   23   24   24   26   35    23
   6  |    9    7   10    6   10    4    7   12   10   11    3 |    22   31   26   23   20   22   28   24   28   29    24
   7  |    6   11    6    5   12    3    9   16   13   16    3 |    37   41   37   39   35   35   38   35   41   35    36
   8  |    6    7    6    8   16    4    9    8    7    9    3 |    23   30   29   25   29   27   29   27   30   27    26
   9  |    6    9    6    7   12    3    8    7    5   13    2 |    38   41   38   40   38   37   39   36   39   44    38
  10E |   10   13    9    8   15    6   10   13    9   11    3 |    32   38   35   36   32   35   37   36   38   39    34
  11  |    7    9   15   10   17    5    9    7    5   11    3 |    32   37   27   33   32   30   38   31   30   29    31
  12  |   10   22    6   10   24    5   10   20   15   18    5 |    28   33   25   32   35   26   30   23   29   28    26
  13  |    7   13   11   10    8    4   10   21   15   21    4 |    23   33   21   23   23   22   30   31   27   28    23
  14  |    8   12    9   12   11    6    5   34   14   17    4 |    41   44   42   41   39   40   42   49   42   41    39
  15  |    8    9    7    9   13    5   10   21   12   18    4 |    51   55   49   52   47   49   51   51   53   53    50
  16  |    6   20    9   17   15    4    8   17   13   16    4 |    35   40   39   37   35   36   36   35   39   35    35
  17  |    7   15    7    8   12    3   11   15   10   14    3 |    29   31   27   26   27   27   33   26   26   25    27
  18  |    6   10   10    9   13    4    8    7    6   11    3 |    32   38  160   30   35   34   36   34   37   40    34
  19  |    9   21    8    9   12    5    8   16   12   17    4 |    19   25   24   24   24   22   23   26   28   27    22
  20  |   11   13    5    8   15    4    7   14   10   13    3 |    22   21   20   23   21   20   20   20   21   21    19
  21  |    9    9   10    7   11    5    7   19   12   19    4 |    23   25   21   24   21   21   26   17   19   20    20
  22  |    8    9    6   11   17    3    7   14   10   10    3 |    31   34   31   33   30   30   32   32   35   33    31
  23  |    9   26    9   10   12    5    7   27   13   23    5 |    46   46   48   50   47   47   47   48   50   49    45
  24  |    5    8   10   10   12    3    9   17   12   13    3 |    26   35   27   34   22   25   33   27   26   37    28
  25  |    8   12    6    8   13    3    7    9   10    9    3 |    23   25   25   24   24   22   24   24   22   25    23
  26  |    7   25    7   11   17    3    7   11    8   10    4 |    27   38   30   28   31   27   31   29   29   31    28
  27  |    6    8    6    9   12    3    9   11    6   11    3 |    23   30   27   24   24   24   29   23   26   25    24
  28  |    7   10    7    8   16    4    8   14    9   13    3 |    34   35   32   35   34   32   31   34   34   33    32
  29  |    8   22    7    8   18    6   10   19   12   16    4 |    54   50   49   55   53   52   49   54   52   53    51
  30  |    6    7    9    6   12    3    9   10    9   12    3 |    31   40   35   34   34   31   37   33   36   37    34
  31  |    4   13    9    7   11    4    8   23   13   16    4 |    59   63   59   60   59   60   64   59   64   61    60
  32  |    5   10    6    9   11    4    7   12    6    8    2 |    38   42   40   40   39   39   42   36   41   40    39
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    8   10   14    4    8   16   10   15      |T   33   36   36   33   33   31   34   32   34   34    33
 WRMS |    7   14    8   10   14    4    8   14   10   14      |NE  33   36   37   33   33   32   34   32   34   34    33
 MEDI |    7   11    8    9   12    4    8   14   10   13      |MD  31   35   30   32   32   30   33   31   30   33    31

Table 3.2042.3   GPS week: 2042   Day: 3   MJD: 58541.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    8   13    8   12    3    6    7    8    8    3 |    18   29   25   21   18   20   26   21   23   24    21
   2  |    8    9   11    8   10    4    9   18   11   14    3 |    37   38   37   36   32   33   34   35   34   35    34
   3  |    8   11   10   13   22    5    8    9    7    6    3 |    25   30   25   22   26   24   27   25   30   25    24
  X4  |   21  ---  ---  ---   42   33  ---  ---  ---  ---   30 |    63  ---  ---  ---   80   54  ---  ---  ---  ---    65
   5  |   11   20    8   12   19    4   11   18   12   11    4 |    39   41   38   39   39   38   36   41   43   37    37
   6  |    8    9   10    8    9    3    6   12    8    9    3 |    24   29   25   22   20   23   29   24   27   28    24
   7  |    5   11    8    5    8    4    9   14   10   13    3 |    24   26   25   24   21   24   25   25   25   22    23
   8  |    9    7   10   10   14    4    5   10    8    6    3 |    18   26   24   20   21   19   23   21   25   18    20
   9  |    6   12    7   10    7    6    8    9    9   10    3 |    22   27   20   24   19   21   24   24   24   27    22
  10  |    7   13   10   11   12    5    8   12    6    7    3 |    19   25   25   21   26   21   25   24   24   23    22
  11  |    9   11   16   11   18    3    8    8    7    8    4 |    26   38   29   32   30   28   35   29   32   26    29
  12  |    9   24    7   14   23    6    9   22   15   17    5 |    25   35   21   32   32   21   27   17   26   21    23
  13  |    9   11   12   11   10    3   10   20   12   19    4 |    24   32   18   20   17   22   27   31   23   27    22
  14  |    8    7    9   11    8    6    6   34   14   16    4 |    21   24   23   22   21   24   24   39   21   28    21
  15  |    9    9   10    7   12    4    8   19   10   14    3 |    29   31   24   28   25   25   28   24   28   27    26
  16  |   10   22    8   15   17    6    6   18   15   19    5 |    26   32   23   32   28   22   24   20   27   21    23
  17  |    8   11    7    7   12    3    9   14   10   11    3 |    34   35   30   32   32   30   33   30   31   28    31
  18  |    7    9  198    9   10    4    8   11    6    7    3 |    22   26  159   22   23   21   24   23   26   24    22
  19  |    7   17    7    8   13    4    8   15   10   14    3 |    26   26   24   26   26   24   24   25   28   25    24
  20  |   10   15    6   10   12    4    6   18   11   13    3 |    25   24   21   24   21   22   23   25   23   24    21
  21  |    9    9   10    9    9    5    7   18   13   14    4 |    27   30   27   29   24   24   31   24   24   24    25
  22  |    9   10    7   16   15    5    8   15   12   12    4 |    36   44   43   41   40   41   43   38   43   42    40
  23  |    9   24    7   10   10    6    7   29   14   20    5 |    28   26   29   34   27   30   28   36   29   31    27
  24  |    7    8   10   10    8    4    7   15    9   13    3 |    21   28   22   22   16   20   27   20   20   31    21
  25  |    8   11    6   14    9    4    7   10    7    7    3 |    26   30   26   33   26   25   29   24   25   27    26
  26  |    9   14    7    9   18    3    6   12    9    6    3 |    24   30   27   28   32   23   27   24   27   23    25
  27  |    6    6    8   12   12    4    7   10    5    5    2 |    22   25   25   23   22   21   24   20   25   17    21
  28  |    7   10    9   10   13    4    8   13   10   13    3 |    30   33   28   31   29   29   28   30   34   26    28
  29  |    6   16    9   10   15    5    9   19   13   15    4 |    40   43   38   42   48   38   40   33   40   45    40
  30  |    4    9   10    6    8    3    6   11    7    9    2 |    22   32   26   23   22   22   27   21   24   26    23
  31  |    7   11   10    8    9    5    8   25   13   17    4 |    28   31   26   29   24   27   31   31   28   31    27
  32  |    5    9    6    9    7    3    6   12    6   10    2 |    24   27   24   26   23   23   26   18   24   26    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13   36   10   13    4    8   16   10   12      |T   27   30   30   27   27   26   28   26   27   27    26
 WRMS |    8   13   10   11   13    4    8   14   10   12      |NE  27   30   30   27   27   25   27   25   26   26    26
 MEDI |    8   11    9   10   12    4    8   14   10   12      |MD  25   30   25   26   25   24   27   24   26   26    24

Table 3.2042.4   GPS week: 2042   Day: 4   MJD: 58542.000                            

        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    7   10    6   12    4    6    7    9   14    3 |    21   27   22   19   18   21   26   21   22   29    21
   2  |   18   11    8    6    9    4    8   20   15   17    4 |    41   43   43   39   36   38   40   40   36   40    38
   3  |    7    9    8   11   20    5   10    7   12   10    3 |    21   26   25   21   24   21   24   21   29   21    22
  X4  |   13  ---  ---  ---   25   30  ---  ---  ---  ---   18 |    46  ---  ---  ---   66   57  ---  ---  ---  ---    50
   5  |    9    8    8   16   17    3   10   16   13   10    4 |    34   36   32   32   41   32   34   41   42   35    33
  X6  |    9    7    9    8  ---    5    7   13   12    8    3 |    20   27   22   19  ---   19   28   24   23   26    21
   7  |    6   10    6    6   12    3    8   15   12   18    3 |    43   44   45   43   36   41   44   41   41   43    41
   8  |    7    6    7    9   16    4    9    8    9    5    3 |    20   24   23   20   20   20   22   21   21   20    19
   9  |    6    8    6    9    9    4    7   10   10   13    3 |    31   34   33   32   30   28   33   32   31   35    31
  10  |    7   15    9   14    7    3   10   12    9   11    3 |    21   24   23   24   25   20   25   22   23   25    21
  11  |    6    9   16    7   16    5    9    7   10    9    3 |    44   47   35   44   45   41   48   43   45   39    42
  12  |    9   24    8    9   23    4    8   19   15   15    5 |    26   35   24   29   30   25   29   21   28   25    24
  13  |    8   10    8   12   10    3   10   21   12   17    4 |    22   27   20   24   19   21   29   28   26   24    21
  14  |   11   12    8    8   10    8    7   33   13   16    4 |    43   43   39   43   43   42   44   54   45   45    42
  15  |    8   10    8    9   13    3    7   20   11   15    4 |    44   47   45   46   43   45   45   46   45   48    44
  16  |   10   22    6   12   19    5    6   16   12   17    4 |    33   39   35   35   34   34   34   36   39   38    33
  17  |    9   12    8    6   12    4    8   16   11   13    3 |    43   43   41   42   41   40   43   40   39   38    41
  18  |    5    8    9    7   10    3    5    6    8   10    2 |    21   28   49   25   25   24   28   25   27   29    24
  19  |   10   19    7    8   11    4    8   16   12   14    4 |    25   24   25   26   26   24   25   30   30   26    24
  20  |   10   10    6   10   13    3    8   15   12   14    3 |    26   22   22   30   25   24   23   24   23   19    22
  21  |    7   10    9   10    9    4    8   18   16   16    4 |    32   34   32   35   30   30   34   23   21   24    29
  22  |    6   11    6   12   12    4    6   14   12   12    3 |    29   31   30   32   30   29   29   29   33   30    28
  23  |    8   25    7    9    9    6    7   27   13   20    5 |    44   45   45   48   45   45   46   53   44   49    44
  24  |   11   11   11    9   11    3    7   13    7   12    3 |    26   31   23   22   19   21   28   21   24   26    23
  25  |   11   11    6    7   11    4    6    9   11    8    3 |    26   28   26   28   26   25   26   26   24   25    25
  26  |    9   14    5   10   19    5    5   12   10    8    3 |    22   30   26   26   28   24   27   27   29   28    24
  27  |    5    9    5    8   10    4    9    9    8    8    2 |    21   25   22   24   22   21   24   22   25   20    20
  28  |    5    9    6    8   15    5    7   14   15   14    3 |    35   39   35   38   35   36   37   39   39   37    35
  29  |    9   16    5   11   14    4    6   19   14   13    4 |    75   71   72   73   74   72   72   72   70   71    72
  30  |    7    8    9    7   10    3    8    8    8    9    3 |    33   38   35   32   29   32   38   32   30   35    33
  31  |    8   10    7    7   11    5    8   22   13   16    4 |    66   67   65   67   66   67   69   70   70   72    67
  32  |    9    9    5    6    6    6    9   14    5   10    2 |    33   34   33   34   36   33   37   34   35   37    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    8    9   13    4    8   16   11   13      |T   33   35   33   33   34   32   35   34   34   34    32
 WRMS |    9   13    8   10   13    4    8   14   11   13      |NE  34   36   34   34   35   33   36   35   34   35    33
 MEDI |    8   10    8    9   12    4    8   14   12   13      |MD  31   34   32   32   30   29   33   30   30   30    29

Table 3.2042.5   GPS week: 2042   Day: 5   MJD: 58543.000                            

        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    8    9    8   10    5    6    7    6   12    3 |    18   24   18   19   17   17   24   17   21   24    18
   2  |    8    7    8    9   10    4    8   19   13   19    4 |    39   43   43   44   41   39   43   33   37   34    39
   3  |    8   11    7   12   13    5   12    8    4    8    3 |    22   26   26   21   23   22   25   22   24   24    22
  X4  |   26  ---  ---  ---   39   29  ---  ---  ---  ---   31 |    45  ---  ---  ---   53   45  ---  ---  ---  ---    42
   5  |    7   11    8   21   20    6    9   18   16   17    5 |    28   28   25   32   30   27   28   26   29   27    26
  X6  |    1  ---  ---  ---  ---   40  ---  ---  ---  ---    0 |    20  ---  ---  ---  ---   16  ---  ---  ---  ---    20
   7  |    7   12    8    6    8    2    9   15   11   15    3 |    36   38   39   41   36   37   41   39   35   38    38
   8  |    8    9    6   14   15    5    7   10    9   10    3 |    17   20   19   20   19   17   21   18   20   16    17
   9  |    9   11    7    8    8    4    7   11   13   11    3 |    35   37   36   36   36   35   40   34   43   39    36
  10  |    8   10    9   11    8    4    8   12    7    9    3 |    19   22   22   21   23   19   24   22   22   22    20
  11  |    7    9   15    8   17    7    8    7    6   10    3 |    35   42   30   35   39   35   41   34   40   34    36
  12  |    9   22    7   10   21    6    9   21   13   17    5 |    28   35   24   31   31   24   30   17   27   22    25
  13  |    6   13    8   11   10    3   11   21   11   19    4 |    19   31   17   22   20   21   27   27   22   25    20
  14  |   13   11    8    9    8    8    6   32   13   16    4 |    34   34   34   35   32   31   34   36   34   29    31
  15  |    9   11    8    9   12    5    9   18   10   13    3 |    43   45   42   42   44   42   45   41   48   45    43
  16  |    9   24    6   10   15    5    7   18   13   18    4 |    28   36   29   29   32   28   28   26   30   28    28
  17  |   11   10    6    8   11    4   10   16   10   12    3 |    43   46   40   39   39   41   46   39   42   39    40
  18  |    7    9   10    7   10    4    7    9    5    9    2 |    26   26   28   26   25   25   26   27   24   27    25
  19  |    8   17    6   10   11    5    8   17   14   15    4 |    25   24   24   25   22   25   25   28   32   26    24
  20  |   10   12    6    9   12    3    7   14   13   14    3 |    27   22   22   28   26   24   22   24   28   25    23
  21  |   11    9    9    8    8    5   10   19   14   15    4 |    33   30   29   32   27   27   30   24   28   26    28
  22  |    8   12    7    9   14    5    8   15   10   13    3 |    18   23   20   21   22   20   21   19   24   20    19
  23  |   11   22    9    8   12    6    9   27   14   21    5 |    47   46   49   48   47   46   47   46   52   48    46
  24  |    8    7   10    7    9    3    8   13    8   10    3 |    21   28   24   27   17   21   29   21   19   28    23
  25  |    6   12    6    8    9    4    8    9    6   10    2 |    24   27   24   28   22   23   25   25   26   24    23
  26  |    9   14    5    7   17    4    7   11    5    8    3 |    18   23   20   19   26   18   23   21   20   22    20
  27  |    6   10    5   12   11    5    7    9    5    8    3 |    17   21   21   22   18   18   21   18   21   16    18
  28  |    8   12    7    7   12    5    8   15    9   14    3 |    26   27   23   28   25   25   24   27   29   24    24
  29  |    9   20    6    9   17    5    8   18   12   11    4 |    70   68   68   69   64   70   68   70   77   70    69
  30  |    6   11   10    7    8    5    7   11    4   11    3 |    26   30   29   28   23   24   31   25   27   33    28
  31  |    8   11    8    9    9    5    8   23   12   15    4 |    57   60   56   59   57   57   60   54   59   56    57
  32  |    7   10    6    7    8    4    6   10    6    7    2 |    33   34   33   31   33   31   35   26   33   32    32
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    8   10   12    5    8   16   10   13      |T   30   33   30   31   31   29   32   29   32   30    30
 WRMS |    8   13    8    9   12    5    8   14   10   13      |NE  31   34   31   33   32   30   34   30   33   31    31
 MEDI |    8   11    7    9   11    5    8   15   10   12      |MD  27   30   26   28   27   25   28   26   28   27    25

Table 3.2042.6   GPS week: 2042   Day: 6   MJD: 58544.000                            

        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    7    9    7   10    4    7    7    6    9    2 |    20   25   21   18   17   19   25   20   20   24    20
   2  |    6   10    9   10   12    4    9   17   16   16    4 |    35   38   38   38   37   34   38   32   32   32    34
   3  |    7   10    7    9   14    5    9    8   10    9    3 |    25   27   26   24   22   23   27   23   31   29    24
  X4  |   15  ---  ---  ---   29   34  ---  ---  ---  ---   21 |    71  ---  ---  ---   68   51  ---  ---  ---  ---    65
   5  |    7   11    6    7   19    5    8   15   15   12    4 |    24   26   23   26   29   22   26   25   29   22    23
   6  |    8   11   11    8   10    4    7   12    9    9    3 |    17   23   16   13   13   16   22   15   16   21    19
   7  |    7   12    8    7    8    3    8   15   12   15    3 |    32   34   33   32   29   31   35   32   35   32    31
   8  |    8    8    6   10   12    4    8   10    7    7    3 |    24   26   25   22   23   22   24   21   23   24    23
   9  |    8    9    6   10   10    3    8   10    8   12    3 |    42   45   43   47   47   43   47   42   46   51    44
  10  |    8   11    6   12    7    4    7   13    7    8    3 |    20   24   23   22   24   20   26   23   23   21    21
  11  |    6    9   15    9   14    5   10    7    6    8    3 |    35   40   29   37   37   34   41   34   37   34    35
  12  |    9   21    6    9   22    5    8   19   12   14    4 |    30   39   29   32   29   29   34   26   32   24    28
  13  |    6   13    9   10   10    3   10   23   12   17    4 |    19   30   18   20   21   21   26   34   26   23    20
  14  |   11   11    9   12    7    6    7   34   15   16    4 |    33   35   34   35   33   36   36   45   39   36    33
  15  |   12   16    8   10   15    4   10   20    9   13    4 |    48   49   47   49   46   47   47   44   50   49    46
  16  |    9   24    6   13   13    5    6   18   14   20    4 |    37   45   38   41   37   36   39   32   36   34    36
  17  |    7   11    5    6    9    3    9   14   11   14    3 |    39   42   38   37   38   37   42   36   40   36    38
  18  |    6    8   11    8    7    3    7   10    5    8    2 |    33   35   28   36   35   35   35   39   35   36    35
  19  |    7   18    5    8   11    5    8   16   13   16    4 |    23   22   24   24   25   26   25   29   35   29    24
  20  |   10   12    6   12   11    4    7   18   12   15    4 |    25   24   23   30   26   24   23   24   25   24    23
  21  |    9    8    7   11    8    6    7   18   14   17    4 |    30   31   28   30   26   26   30   25   24   25    26
  22  |    9   11    6    9   12    4    7   16   11   14    3 |    28   28   28   33   26   28   27   28   31   28    26
  23  |    8   22    7   11   13    5    9   29   16   18    5 |    47   44   48   48   49   47   47   47   50   47    46
  24  |    7    9    7    8    9    4    7   13    6    9    3 |    24   26   26   25   17   22   28   21   24   26    23
  25  |    7   10    4    8    8    3    7   10    8    7    2 |    24   29   26   27   23   24   27   27   26   25    25
  26  |   11   15    5   10   14    4    8   14    8    7    3 |    25   29   24   23   26   22   29   24   27   25    24
  27  |    8    9    7    7    8    4    8    8    7    6    2 |    24   27   25   25   23   22   26   21   24   24    23
  28  |    5   11    5   10   12    4    7   12    9   14    3 |    35   36   35   36   37   34   35   36   41   35    34
  29  |    8   21    5    8   15    4    8   20   13   14    4 |    72   71   72   73   69   73   71   73   79   73    72
  30  |    7   11    9    7    9    2    7   10    7   14    3 |    25   31   27   25   24   25   31   27   26   31    26
  31  |    6   11    6    8    7    4    8   23   13   17    3 |    56   60   58   59   57   58   60   56   61   59    58
  32  |    7    9    4    8    6    3    8   10    6    7    2 |    37   39   38   38   37   37   41   32   41   39    37
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   13    7    9   12    4    8   16   11   13      |T   33   34   31   33   32   32   34   32   34   32    32
 WRMS |    8   13    7    9   11    4    8   13   11   13      |NE  34   36   33   34   33   33   35   33   35   34    33
 MEDI |    7   11    6    9   10    4    8   14   10   14      |MD  30   31   28   32   29   28   31   29   32   29    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 4.2042   GPS week: 2042   MJD: 58538.0-58544.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3057 |U    8    10    22 |U   10    13    33 |U    8    10    15 |
emr | emr 2962 |U   16    15    46 |U   15    18    43 |U   16    19    38 |
esa | esa 2962 |     8    14    23 |U    9    13    31 |     9    10    20 |
gfz | gfz 2961 |U    9    11    21 |U   10    13    32 |U    8     9    20 |
grg | grg 3043 |U    9    14    24 |U   10    15    33 |     8    11    19 |
igr | igr 2954 |     8    10    22 |     9    12    31 |     8     9    16 |
igs | igs 3037 |     9    10    23 |    10    13    33 |     8    10    19 |
jpl | jpl 2962 |U   14    14    37 |U   11    15    42 |U   12    15    32 |
mit | mit 2962 |U   17    16    39 |U   22    35    79 |U   28    29    54 |



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 5.2042.0   GPS week: 2042   Day: 0   MJD: 58538.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10     9    19 |    11    15    36 |     8    10    13 |
emr | emr 2975 |    18    12    44 |    15    17    41 |    15    20    34 |
esa | esa 2976 |    10    13    24 |    11    15    36 |    10     9    17 |
gfz | gfz 2975 |    10     8    20 |    11    16    37 |    10     9    17 |
grg | grg 3070 |    11    14    23 |    10    15    36 |    11    14    21 |
igr | igr 2975 |    10     8    21 |    11    14    34 |     9     9    15 |
igs | igs 3031 |    11     9    24 |    11    14    36 |    10    11    17 |
jpl | jpl 2976 |    15    13    37 |    13    14    43 |    12    14    26 |
mit | mit 2976 |    12     9    28 |    15    18    75 |    10     6    21 |

Table 5.2042.1   GPS week: 2042   Day: 1   MJD: 58539.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     8    11    22 |    15    18    44 |     9     8    14 |
emr | emr 2976 |    15    15    45 |    18    26    56 |    16    19    35 |
esa | esa 2976 |     8    15    30 |    10    16    33 |    12     8    22 |
gfz | gfz 2975 |     9     9    20 |    15    16    43 |    10     7    22 |
grg | grg 3070 |     9    13    24 |    14    22    40 |    11     8    17 |
igr | igr 2946 |     8    10    23 |     8    15    34 |     9     8    15 |
igs | igs 3060 |     9    10    25 |    14    18    43 |    10     9    17 |
jpl | jpl 2976 |    13    16    36 |    12    16    43 |    12    15    31 |
mit | mit 2976 |    19    10    34 |    27    83   117 |    14    15    33 |

Table 5.2042.2   GPS week: 2042   Day: 2   MJD: 58540.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7     8    23 |    10    12    29 |     7    10    14 |
emr | emr 2976 |    14    21    57 |    11    13    41 |    19    20    38 |
esa | esa 2976 |     8    15    26 |     9    13    30 |     8    11    17 |
gfz | gfz 2976 |    10    12    24 |     9     9    28 |     7     9    17 |
grg | grg 3072 |     8     9    26 |    10    13    29 |     7    11    18 |
igr | igr 2976 |     8     8    24 |     9    12    30 |     8     8    13 |
igs | igs 3044 |     9    10    28 |     9    12    29 |     8    10    16 |
jpl | jpl 2976 |    16    14    47 |     9    16    35 |  ----  ----  ---- |
mit | mit 2976 |    23    20    57 |    34    32   136 |    56    89    83 |

Table 5.2042.3   GPS week: 2042   Day: 3   MJD: 58541.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     7     8    20 |    10    11    32 |     8     8    16 |
emr | emr 2976 |    15    11    44 |    14    18    42 |    16    17    42 |
esa | esa 2976 |     8    12    19 |     8    12    31 |    12    10    23 |
gfz | gfz 2975 |     8     9    17 |    10    10    34 |     9     8    23 |
grg | grg 3071 |     8    14    23 |    10    12    33 |     8     9    20 |
igr | igr 2958 |     8    10    20 |     9    11    32 |     9     8    19 |
igs | igs 3060 |     8     8    21 |     9    11    34 |     9     8    21 |
jpl | jpl 2976 |    12    11    35 |    10    14    42 |    12    14    35 |
mit | mit 2976 |     9     9    28 |    14    16    53 |    18    13    43 |

Table 5.2042.4   GPS week: 2042   Day: 4   MJD: 58542.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     8    13    25 |     8    11    32 |     7    10    13 |
emr | emr 2975 |    16    15    47 |    14    14    44 |    15    17    35 |
esa | esa 2976 |     8    15    20 |     8    12    34 |     8     8    19 |
gfz | gfz 2975 |     9    13    24 |    10    12    29 |     7     9    17 |
grg | grg 2975 |     9    15    23 |     8    13    35 |     7    13    16 |
igr | igr 2975 |     9    10    23 |     8    11    33 |     7     8    16 |
igs | igs 3070 |    10    13    22 |     8    11    34 |     7     9    18 |
jpl | jpl 2976 |    14    14    31 |    11    14    44 |    10    15    32 |
mit | mit 2976 |    10     9    24 |    11    15    42 |    10    10    22 |

Table 5.2042.5   GPS week: 2042   Day: 5   MJD: 58543.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    11    22 |     8    10    23 |     7    11    19 |
emr | emr 2880 |    17    14    43 |    15    21    44 |    16    21    44 |
esa | esa 2880 |     9    15    22 |     8    12    21 |     8    10    21 |
gfz | gfz 2880 |     8    13    21 |     9    12    19 |     7    10    22 |
grg | grg 2976 |     9    16    25 |     8    14    25 |     7    11    20 |
igr | igr 2880 |     9    12    23 |     8    11    22 |     7     9    19 |
igs | igs 2956 |    10    11    23 |     8    12    24 |     7    10    20 |
jpl | jpl 2880 |    15    13    37 |    10    12    35 |    12    14    36 |
mit | mit 2880 |    41    40    75 |    36    65    85 |    62    35   141 |

Table 5.2042.6   GPS week: 2042   Day: 6   MJD: 58544.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     6    11    21 |    11    14    32 |     7    12    20 |
emr | emr 2976 |    16    19    41 |    16    17    35 |    15    20    42 |
esa | esa 2976 |     7    13    21 |    10    15    32 |     8    11    22 |
gfz | gfz 2976 |     6    12    22 |    10    18    33 |     8    14    24 |
grg | grg 3072 |     6    14    23 |    12    17    32 |     7    14    23 |
igr | igr 2968 |     6    12    21 |    10    14    31 |     7    10    19 |
igs | igs 3041 |     7    12    22 |    11    14    34 |     8    12    22 |
jpl | jpl 2976 |    12    19    34 |    13    15    50 |    13    16    33 |
mit | mit 2976 |     9    14    28 |    14    19    44 |    25    33    38 |


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 6.2042   GPS week: 2042   MJD: 58538.500-58544.500

                                                         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 |     -10     -13      17      70     -1 |       9     22
            |      16      11      63      93      3 |       3
emr   uuuuu |      26     -10      23     -77     -9 |      58     61
            |      20       9      78      44     10 |       1
esa   uuuuu |      11      -1     161     142     -2 |      31     37
            |       8      10      59      83      4 |       3
gfz   uuuuu |       1       1      34      90     -2 |      17     25
            |      27      20      42     165      4 |       2
grg   uuuuu |     -18     -26     -80       9     -3 |      -6     18
            |      17      18      41      54      3 |       2
igr   xxxxx |      19     -13      51      50     -2 |       0     19
            |       8       8      48      42      4 |       2
irf   xxxxx |      -5     -16      -6     -30      8 |      -3     23
            |      11       7      15      23      5 |       5
jpl   uuuuu |      14     -15     -52     -60     -7 |      42     47
            |      21      13      60      43      5 |       1
mit   uuuuu |       9      16     -11    -102     11 |       8     24
            |      16      14      31      50      4 |       4
ngs   uuuuu |     -36      20    -129     -44      0 |       6     19
            |      28      23      60     110      3 |       2
sio   uuuux |      11      45     -23    -180     -3 |      52     56
            |      12      17      48      77      6 |       1


Table 7.2042.0   GPS week: 2042   Day: 0   MJD: 58538.500

                                                         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      52      37     -1 |       5     20
emr   uuuuu |      41     -13      27     -62      6 |      57     59
esa   uuuuu |       2      -5     248     144      6 |      27     33
gfz   uuuuu |     -28      36     -45     -94     -5 |      17     25
grg   uuuuu |     -30       0     -60     -57     -4 |      -8     19
igr   xxxxx |      13       4     144     -38     -3 |      -1     19
irf   xxxxx |     -15      -7      17     -15     16 |     -10     21
jpl   uuuuu |      44       4    -161     -34     -7 |      42     46
mit   uuuuu |      36      12       3     -15     11 |       3     20
ngs   uuuuu |     -55     -25     -87     119     -4 |       4     18
sio   uuuux |      22      40     -78    -215     -2 |      53     56

Table 7.2042.1   GPS week: 2042   Day: 1   MJD: 58539.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -19     -22       0      81     -1 |       5     21
emr   uuuuu |       6     -13     125    -127    -10 |      58     61
esa   uuuuu |      15     -18     209      35     -3 |      29     35
gfz   uuuuu |      26       6      66     211     -3 |      16     24
grg   uuuuu |     -30     -19    -138      84      0 |      -8     19
igr   xxxxx |       3     -18      33      43     -6 |      -1     19
irf   xxxxx |      -7     -14     -30     -20     11 |      -8     22
jpl   uuuuu |      16       3     -25     -63    -18 |      42     46
mit   uuuuu |      -4      18     -46     -95      6 |       4     21
ngs   uuuuu |     -40      12    -196     -73      3 |       4     18
sio   uuuux |      31      61     -83    -127     -9 |      52     54

Table 7.2042.2   GPS week: 2042   Day: 2   MJD: 58540.500

                                                         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 |     -39     -12      -6     -67      4 |       6     21
emr   uuuuu |      45     -24      34     -63     -6 |      56     59
esa   uuuuu |      10       0     150     195     -8 |      30     36
gfz   uuuuu |      44     -25      41     360     -5 |      15     24
grg   uuuuu |     -32     -33     -67     -10     -6 |      -7     18
igr   xxxxx |      22     -20       5      63     -7 |      -2     19
irf   xxxxx |      12     -14     -10     -21     13 |      -6     21
jpl   uuuuu |      40     -23      30     -40     -4 |      41     46
mit   uuuuu |      24      42     -43    -123     15 |       5     21
ngs   uuuuu |     -76      38    -209    -163     -2 |       5     18
sio   uuuux |       5      71       5    -286      6 |      51     54

Table 7.2042.3   GPS week: 2042   Day: 3   MJD: 58541.500

                                                         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 |     -15       4     -30      21     -3 |       9     24
emr   uuuuu |      30     -10      21     -74     -6 |      59     62
esa   uuuuu |      25      11     201     283      0 |      32     38
gfz   uuuuu |       7      -8      74     107     -2 |      16     25
grg   uuuuu |     -21     -36     -87      22     -4 |      -5     19
igr   xxxxx |      20     -17      47      79      0 |      -1     20
irf   xxxxx |       2     -26     -15      -8      9 |      -3     24
jpl   uuuuu |      13     -18     -55     -32     -6 |      42     47
mit   uuuuu |      13      21     -38     -68     11 |       8     25
ngs   uuuuu |     -54      12    -127    -179      2 |       6     20
sio   uuuux |      12      29      31    -162     -1 |      53     56

Table 7.2042.4   GPS week: 2042   Day: 4   MJD: 58542.500

                                                         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      -4     -76      51     -2 |      13     24
emr   uuuuu |      10     -10      69     -95    -12 |      60     63
esa   uuuuu |       0      10     108      89     -4 |      35     40
gfz   uuuuu |      -4      13      17      68      3 |      19     27
grg   uuuuu |      -5     -57    -122      75     -3 |      -2     17
igr   xxxxx |      23     -17       7      90     -2 |       2     19
irf   xxxxx |     -17     -10      -6     -25      6 |       2     23
jpl   uuuuu |      -1     -15     -23     -12     -9 |      44     48
mit   uuuuu |       1      -5       7    -100     15 |      12     27
ngs   uuuuu |      -9      35     -38     -56      0 |       9     20
sio   uuuux |       2      23      23    -167    -11 |      55     59

Table 7.2042.5   GPS week: 2042   Day: 5   MJD: 58543.500

                                                         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 |       8     -16     103     225      1 |      10     23
emr   uuuuu |      48      -6    -132       2    -26 |      58     62
esa   uuuuu |      12       1      99     165     -1 |      33     38
gfz   uuuuu |     -28      -2      63    -111      4 |      17     25
grg   uuuuu |     -24     -20     -71     -28     -7 |      -5     18
igr   xxxxx |      27     -10      43      61      5 |       0     19
irf   xxxxx |     -13     -14      -1     -60      6 |       0     23
jpl   uuuuu |      -7     -30     -46    -127     -1 |      41     46
mit   uuuuu |      -1      14      13    -156     13 |      11     26
ngs   uuuuu |     -10      36    -108      63      2 |       7     19
sio   uuuux |      10      39      -5    -250      0 |      51     55

Table 7.2042.6   GPS week: 2042   Day: 6   MJD: 58544.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       2     -15      77     142     -4 |      13     24
emr   uuuuu |      -1       4      14    -122    -12 |      57     61
esa   uuuuu |      12      -4     109      79     -2 |      34     39
gfz   uuuuu |      -8     -11      17      88     -4 |      20     27
grg   uuuuu |      15     -16     -15     -25      3 |      -4     18
igr   xxxxx |      21     -14      74      49      2 |       2     19
irf   xxxxx |       2     -24       4     -65     -1 |       4     23
jpl   uuuuu |      -9     -25     -85    -110     -4 |      42     47
mit   uuuuu |      -7      11      28    -156      5 |      15     28
ngs   uuuuu |      -8      34    -139     -18      2 |       8     20
sio   uuuux |      -3      51     -55     -57     -3 |      53     57


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