[IGSREPORT-24440] Wk 1894 IGS Final Orbits

IGS ACC acc at igs.org
Fri May 13 05:55:42 PDT 2016


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1894   (Apr 24, 2016 - Apr 30, 2016)

Contacts: acc at igs.org


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

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

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

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

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

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

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


SOFTWARE:
---------

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

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

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

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

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


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

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

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

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



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

igs1894[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1894[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1894[0-6].cls  IGS GPS clock combination summary report.
igs18947.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18947.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   | REUN
                0  |  EMR   | YAKT
                0  |  ESA   | BJNM ARTU BJNM TIXI
                0  |  GFZ   | 18 32 18 32 BJNM SYOG BJNM POHN SYOG VILL
                0  |  GRG   | GLSV KARR SYOG ADIS GLSV HARB SYOG
                1  |  COD   | MDVJ
                1  |  EMR   | 8 8
                1  |  ESA   | REUN REUN
                1  |  GFZ   | 18 32 18 32 ARTU BAKE BRAZ CGGN CHTI DAV1 GLSV GMSD
                1  |  GFZ   | HRAO HYDE IRKJ ISPA KELY MAL2 MAS1 NLIB NRIL NTUS
                1  |  GFZ   | PDEL PIMO POHN REUN RIOP SFER STHL TRO1 TWTF XMIS
                1  |  GFZ   | YKRO ZAMB ZECK REUN SFER XMIS
                1  |  GRG   | 32 ADIS KELY
                1  |  JPL   | REUN
                1  |  MIT   | BOR1 BOR1 SFER
                2  |  COD   | ARTU
                2  |  EMR   | BJNM YAKT
                2  |  ESA   | SYOG ARTU BJNM NNOR SYOG
                2  |  GFZ   | 18 21 32 18 32 ARTU BOGT CGGN CRO1 DARW GMSD GODE
                2  |  GFZ   | GRAZ HRAO IRKJ KARR KERG KOUR MAL2 MCM4 NICO NIST
                2  |  GFZ   | NKLG NLIB REUN SSIA STHL SUWN VILL YAKT GRAZ MAL2
                2  |  GRG   | ARTU POHN POHN
                3  |  COD   | BJNM MAL2 YSSK
                3  |  ESA   | BRAZ MAL2 BAKE MAW1
                3  |  GFZ   | 18 32 18 32 ALGO MAL2 NRMD POHN KARR NRMD PIMO POHN
                3  |  GRG   | DARW SYOG DARW DRAG MAL2 SYOG XMIS
                3  |  MIT   | BRAZ INVK REUN INVK REUN
                4  |  COD   | ARTU KARR
                4  |  ESA   | 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                4  |  ESA   | 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 5 6 7 8
                4  |  ESA   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                4  |  ESA   | 26 27 28 29 30 31 32
                4  |  GFZ   | 18 21 32 18 32 ALGO BJNM SYOG BJNM HOB2
                4  |  GRG   | 7 18 7 GRAZ INVK NRMD INVK NRMD SYOG
                4  |  JPL   | 18
                4  |  MIT   | INVK TWTF INVK TWTF
                5  |  EMR   | SYOG
                5  |  ESA   | MAC1 MAL2 ARTU MAC1
                5  |  GFZ   | 13 18 32 13 32 ALGO ARTU BAKE BOGT BRFT CORD KARR
                5  |  GFZ   | MAC1 MAL2 NIST ONSA PIMO POHN REUN SSIA SYOG TWTF
                5  |  GFZ   | ULAB WTZR YAKT KARR POHN WTZR
                5  |  GRG   | 13 32 13 KARR NNOR RABT SYOG KARR NNOR RABT SYOG
                5  |  GRG   | ULAB
                5  |  MIT   | KARR KARR
                6  |  COD   | INVK HOB2 INVK MAL2 SPT0
                6  |  EMR   | MCM4 MCM4 SYOG
                6  |  ESA   | MAL2 SYOG WIND HOB2 MAL2 TIXI WIND
                6  |  GFZ   | 18 32 32 ALGO BJFS BJNM BOGT DRAG GMSD IRKJ ISPA
                6  |  GFZ   | KELY KIRU KOUR MAL2 MAS1 PIMO REUN SCOR SYOG ULAB
                6  |  GFZ   | XMIS BJNM
                6  |  GRG   | 32 NRMD SYOG HARB NRMD POTS SYOG

    
 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
               ----+--------+--------+-------------
                0  |  GFZ   | ~08:30 | ~ -0.10 ns
                1  |  EMR   | ~18:59 | ~ 0.37 ns
                3  |  GFZ   | ~18:30 | ~ -0.12 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
               ----+--------+---------------
                6  |  NGS   |  32

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

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

10. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.6   -1.2   -1.0     -50     -2    -27     .83
       EMR  |   0 |    8.2  -14.3     .7      41    -11    -22     .95
       ESA  |   0 |    -.7   -1.1    -.4       0    -35     48     .58
       GFZ  |   0 |     .9    -.2   -1.6     -51    -99    -37     .86
       GRG  |   0 |    6.6   -2.9    3.6      21    -13     81     .57
       JPL  |   0 |    5.3  -11.2   -5.9     -16    -12     -1     .82
       MIT  |   0 |     .9  -11.6   11.7       8     -9      9     .98
       NGS  |   0 |    7.5  -10.8   15.8    -103    -67     -8     .94
       SIO  |   0 |    1.9   -6.7  -25.7     -56    -19     24     .90

       COD  |   1 |    -.3   -1.0   -1.2     -30    -31     -3     .86
       EMR  |   1 |    5.2  -14.3   -3.3      46      0     -1    1.04
       ESA  |   1 |   -1.9    1.6    1.6     -15    -41     33     .68
       GFZ  |   1 |    1.0    -.5   -1.6     -54   -102    -32     .80
       GRG  |   1 |    6.5   -5.0    -.4     -12    -22     68     .85
       JPL  |   1 |    -.7  -16.0    1.3     -23      8     36     .93
       MIT  |   1 |    3.4  -10.4    9.8     -13    -17    -19    1.01
       NGS  |   1 |    3.3   -9.8   13.5     -92    -57    -24     .76
       SIO  |   1 |    6.4   -6.3  -22.6     -38    -48     29     .84

       COD  |   2 |    -.1   -1.5    -.9     -56    -32      0     .89
       EMR  |   2 |    4.4   -9.1    -.1      12    -18    -33     .94
       ESA  |   2 |   -2.2    -.3    2.5     -22    -60     34     .64
       GFZ  |   2 |     .7   -1.1   -2.4     -60   -100    -19     .90
       GRG  |   2 |    6.9   -2.9   11.7       0    -19     94     .60
       JPL  |   2 |    6.0   -6.5    6.6      24     17     40     .98
       MIT  |   2 |    4.3  -10.7   12.4       4     -6     -2    1.10
       NGS  |   2 |    2.7  -13.0   20.0    -121    -52    -49     .82
       SIO  |   2 |    3.8   -5.3  -23.8     -50    -56      7     .99

       COD  |   3 |    -.9   -1.4   -1.1     -37    -26      3     .89
       EMR  |   3 |    8.8  -14.4    1.5      29    -20     -6    1.21
       ESA  |   3 |    -.1   -2.7     .1     -25    -50     33     .88
       GFZ  |   3 |     .3   -1.1   -2.0     -61    -85    -19     .99
       GRG  |   3 |    6.4   -2.3   23.7     -13     -9    147     .79
       JPL  |   3 |    5.9  -11.8    7.2     -10     19     14     .95
       MIT  |   3 |    4.1  -13.0   12.0      10     -5    -31    1.39
       NGS  |   3 |    7.9   -6.6   11.9     -38    -55     16     .93
       SIO  |   3 |    4.3  -12.2  -24.6     -24    112     12    1.12

       COD  |   4 |    -.4   -1.1   -1.2     -36    -44     14     .88
       EMR  |   4 |    4.4  -15.2    1.3      25    -23     28     .97
       ESA  |   4 |    -.1   -4.1     .2     -14    -40     56     .62
       GFZ  |   4 |     .7    -.7   -1.4     -46   -103    -20     .76
       GRG  |   4 |    7.3   -1.9   17.1     -15    -43    122     .64
       JPL  |   4 |    8.5  -10.2   -2.9     -33     56    -14    1.11
       MIT  |   4 |    3.4  -11.4   10.6       9    -21    -24     .97
       NGS  |   4 |    7.0   -6.1   10.8     -45    -52     75     .80
       SIO  |   4 |    6.8   -7.2  -31.5       9    -43     -5     .78

       COD  |   5 |    -.7   -1.2    -.8     -41     -3    -16     .61
       EMR  |   5 |    2.7  -19.0    4.9      34    -29     16    1.31
       ESA  |   5 |    -.4   -4.7     .9      -5    -45     54     .64
       GFZ  |   5 |     .7   -1.2   -1.2     -55    -87    -20     .81
       GRG  |   5 |   13.8    -.8   17.1      -7    -60    105     .63
       JPL  |   5 |    9.3  -12.5    1.3     -29     16     31    1.04
       MIT  |   5 |    3.7   -9.3   13.9       8    -19    -15    1.01
       NGS  |   5 |    7.1   -4.8   13.3     -33    -60     21     .98
       SIO  |   5 |    5.9   -6.5  -33.5      16    -10    -71     .90

       COD  |   6 |   -1.2    -.3   -1.7     -32     -7    -12     .91
       EMR  |   6 |    -.1  -12.5    2.4      18    -19     27    1.25
       ESA  |   6 |     .3   -3.0    -.8       7    -40     43     .86
       GFZ  |   6 |     .7   -2.0   -2.5     -63    -90    -35    1.07
       GRG  |   6 |   12.4   -5.2   23.9      15    -34    145     .77
       JPL  |   6 |   13.2   -8.7    7.4       3      9     73     .93
       MIT  |   6 |    3.8   -7.7   15.1      14    -21    -18    1.19
       NGS  |   6 |    8.2   -4.9   20.5     -71    -80     44    1.11
       SIO  |   6 |    6.4   -6.9  -28.1      41     13   -151     .96


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

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


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1894.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1894.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 2.1894.[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 3.1894.[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 5.1894.0-6). 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 1894 summary.                       (Apr 24, 2016 - Apr 30, 2016)

Table 1.1894.a   GPS week: 1894   MJD: 57502.000-57508.000

         Mean and standard deviations of transformation parameters to the 
         combined IGS orbit.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         STA  - Mean number of stations in the daily solutions.
   
CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  245|    0     1    -4    20    16   -11   .00   12   11 |   -1261     447     12    136
        |    0     0     1    16    17    17   .04           |     119     222
emr   80|    0    -4    -2     3   -13    12   .34   12   12 |    5061     -30     15    136
        |    1     0     0    12    13    13   .02           |     520     594
esa  149|    0     0    -6    -6    -8    18  -.54    8    8 |    -602     103     25    166
        |    0     0     0    12     9    17   .01           |     532    1180
gfz  206|    0     0     0    -9     1     8   .10   11   10 |    -384      26     10    167
        |    0     1     1    21    23    12   .02           |     295     336
grg  120|    1     1    14   -13    56    34   .09   16   15 |    -118      99     13    205
        |    1     1     3    17    21     9   .06           |     102     178
igr  n/a|    0     0    -4     9    35    -6  -.08    4    4 |    7499      13     18     98
        |    0     0     1    20    12    12   .02           |     394     622
jpl   80|    0    -1    -1     0    40     7   .39   10   10 |    3476     -34     14    124
        |    0     0     1    18    31    36   .02           |    1157     661
mit  349|    0    -1     3    -4   -17     5  -.11   12   12 |     -47    -131     38    372
        |    1     0     0    24    21    11   .03           |     156     251
ngs  224|    0     1     5    -7   -19    -7   .01   12    9 |   -1277     458    893   2255
        |    0     0     3    26    17    22   .05           |      90     202
sio  301|    0     1     0     3   -35   -53  -.02   12   12 |     ---     ---    ---    ---
        |    0     0     2    39    46    85   .04           |     ---     ---


Table 1.1894.b   GPS week : 1894   MJD: 57502.000-57508.000   

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



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 2.1894.0   GPS week: 1894   Day: 0   MJD: 57502.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|    0     2    -3    11    38   -38   .04   11   11 |   -1490     861     10    137
emr   80|    2    -4    -3     3   -13     5   .32   11   11 |    4287     811     15    146
esa  150|    0     0    -6     4   -16    25  -.54    8    8 |    -965     995      9    162
gfz  204|   -1     0    -1   -19    19    -3   .08   10   10 |       9    -130     10    210
grg  123|    1     0    12    -2    33    25   .06   15   14 |    -281     390     13    186
igr  n/a|   -1     1    -5    -5    28    -2  -.10    4    4 |    6978     868     16     85
jpl   80|    0    -1    -3    -7     0    32   .37   10   10 |    2580     820     14    108
mit  349|    0    -1     3    17   -25     2  -.09   12   11 |    -226     192     36    375
ngs  230|    0     1     8   -14   -22   -28   .05   10    9 |   -1477     855   1084   2346
sio  298|    0     0     0     0    18   -19  -.09   12   12 |     ---     ---    ---    ---

Table 2.1894.1   GPS week: 1894   Day: 1   MJD: 57503.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|    0     2    -4    30     0   -10   .03   12   12 |   -1272     526     13    121
emr   80|    1    -5    -4    14     8    12   .35   11   11 |    5254    -258     17    164
esa  150|    0     1    -7    -3     0     6  -.55    8    8 |     -77     562     14    170
gfz  207|    0     1     0   -38   -10    17   .09   12   11 |    -190    -440     11    133
grg  120|    3     1    12    -5    68    25   .05   16   14 |     -90     143     13    205
igr  n/a|    0     1    -3    32    40     8  -.08    4    4 |    7812    -342     18     92
jpl   80|   -1    -2    -2    -5     2    23   .37   10   10 |    3560    -567     14    108
mit  349|    0    -2     2     0   -29    -8  -.10   12   11 |     -78      48     35    386
ngs  229|   -1     1     5   -20    -2   -25   .05    9    8 |   -1271     533    691   2033
sio  298|   -1     2     2    10   -13   -17  -.00   12   12 |     ---     ---    ---    ---

Table 2.1894.2   GPS week: 1894   Day: 2   MJD: 57504.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|    0     1    -5    28    32    -7   .01   11   11 |   -1106     264     14    142
emr   80|    0    -2    -3    10   -20    -1   .34   12   12 |    4893     334     14    122
esa  150|    1     0    -6    -9   -21    -1  -.53    8    8 |   -1036     411     11    160
gfz  208|    0     1     0    11     1   -10   .09   10   10 |    -837     369     10    191
grg  119|    3     0    10   -45    69    29   .02   17   15 |      10    -197     13    227
igr  n/a|    0     0    -5    42    29     2  -.06    4    4 |    7351     227     20    110
jpl   80|   -1    -1    -2    38    53    20   .38   10   10 |    4954     325     15    131
mit  350|    0    -1     3   -29   -10     6  -.08   12   12 |     156    -482     38    376
ngs  227|   -1     1     7    -4   -14    -9   .07   10    8 |   -1238     296    885   2637
sio  301|    0     0     1   -27   -49    -9  -.02   12   13 |     ---     ---    ---    ---

Table 2.1894.3   GPS week: 1894   Day: 3   MJD: 57505.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|    0     1    -3     4    26   -28   .02   11   10 |   -1242     517     13    132
emr   80|    1    -4    -1    -3   -26    10   .35   11   11 |    5707    -814     15    132
esa  150|    0     0    -7   -27    -6     9  -.53    8    7 |    -932    -686      9    131
gfz  206|    0     2     1   -26    17     6   .15   11   11 |    -361    -291     10    152
grg  121|    1     2    19   -10    83    44   .05   17   16 |     -52      45     13    196
igr  n/a|    0     0    -4    -8    44   -22  -.06    4    4 |    7924    -685     17     95
jpl   80|    0    -1     1   -15    48     9   .39    9    9 |    3333    -891     14    125
mit  350|    0     0     4    30     8    -6  -.11   12   11 |      98    -358     37    378
ngs  223|    0     1     0     3   -42   -30  -.02    9    8 |   -1242     524   1002   2577
sio  294|    0     2    -1    87   -95    23   .03   13   13 |     ---     ---    ---    ---

Table 2.1894.4   GPS week: 1894   Day: 4   MJD: 57506.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  244|    0     2    -2    46     1     6   .01   12   11 |   -1172     172     12    127
emr   80|    0    -4    -2    15    -3    11   .34   11   11 |    4599     513     14    103
esa  150|    0     0    -6     7     3    16  -.54    8    8 |    -776     766    116    228
gfz  208|    0     0     0    20    -2     8   .09   11   11 |    -418     253      9    124
grg  122|    1     1    17   -20    33    38   .11   17   15 |    -199     185     11    190
igr  n/a|    0     1    -4    -4    53   -23  -.07    4    4 |    7021     796     19    134
jpl   80|    0    -1    -2   -12    93   -61   .42   10   10 |    2036     697     15    141
mit  350|    1     0     3   -21   -23     6  -.12   12   11 |    -190     -27     35    397
ngs  220|   -1     2     4   -45   -40    28  -.01   11    9 |   -1242     388    973   2037
sio  303|   -1     2     0   -20   -68   -32  -.00   12   12 |     ---     ---    ---    ---

Table 2.1894.5   GPS week: 1894   Day: 5   MJD: 57507.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|    0     1    -7    21    -5   -13  -.01   11   11 |   -1261     383     12    144
emr   81|    0    -5    -2   -20   -28     9   .35   12   12 |    5637    -256     16    124
esa  150|    1     0    -5     0    -2    52  -.54    9    9 |    -792     925     11    158
gfz  209|    0     0     2   -14   -41    28   .10   11   10 |    -206     -13     11    166
grg  115|    0     4    14   -17    71    30   .11   16   16 |     -43      22     14    221
igr  n/a|    0     1    -3    12    34    -3  -.09    4    4 |    7859    -334     17     83
jpl   80|   -1    -1    -1    -9    40   -17   .39   11   11 |    2813    -140     15    115
mit  350|    1     0     3   -34    11    12  -.15   12   12 |      79    -315     39    318
ngs  222|    0     1     2    42   -23    -1  -.01   10    8 |   -1204     300    818   1974
sio  307|    0     0     0   -19    24   -91  -.03   13   13 |     ---     ---    ---    ---

Table 2.1894.6   GPS week: 1894   Day: 6   MJD: 57508.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  244|    0     1    -7    -2    19    12  -.08   14   11 |   -1290     410     15    152
emr   80|   -2    -4    -2     5   -15    42   .30   15   13 |    5056    -546     16    163
esa  149|    0     0    -7   -17   -16    24  -.52    9    9 |     362   -2246     10    158
gfz  205|    1    -1     0     0    26    14   .11   13   10 |    -691     435     14    199
grg  123|    2     1    17    10    37    47   .20   16   13 |    -172     111     14    212
igr  n/a|    0     0    -3    -6    15    -3  -.08    5    4 |    7548    -435     19     93
jpl   80|    0     0     0     7    43    46   .40   11   11 |    5062    -485     17    142
mit  350|    2    -1     3     9   -50    23  -.15   15   14 |    -173      20     50    377
ngs  223|   -1     2     7   -12     6    15  -.07   23   10 |   -1269     310    798   2184
sio  306|   -2     0    -4    -3   -65  -230   .00   14   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 3.1894.0   GPS week: 1894   Day: 0   MJD: 57502.000                            

        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    5    7   11    3    6    6    8    5    2 |    45   50   40   43   55   43   51   48   48   47    46
   2  |    8    8   13    9   10    4    9   15   11   14    4 |    26   31   24   29   29   24   28   37   32   28    27
   3  |    9    7    6    6   11    4    7    8    7    8    2 |    30   29   23   26   24   25   31   24   24   25    24
  X4  |    4  ---  ---  ---  ---   33  ---  ---  ---  ---    0 |    41  ---  ---  ---  ---   26  ---  ---  ---  ---    41
   5  |    8   13   11   12   18    5    9   17   10   12    4 |    31   41   28   28   29   27   36   22   24   26    27
   6  |    6    7    5    5    9    4    7    9    9   10    2 |    39   45   33   44   51   38   45   46   46   39    42
   7  |   11    9    9   10   14    4    8   11   12   15    3 |    29   33   26   30   30   27   31   27   30   22    26
   8  |    7    8    6    7   10    5    8    6    9   11    3 |    24   31   20   24   26   25   31   27   24   30    25
   9E |    8   12    6    8   15    3    9    9    8    7    3 |    18   19   14   20   22   15   20   17   17   16    16
  10  |    5    7    4    7   10    3    9   11    9   10    2 |    29   34   26   28   26   29   35   25   25   33    28
  11  |   10    7   15    9   16    5    7    6   11   11    3 |    41   46   40   41   54   40   46   41   46   45    42
  12  |    8   18    7   18   20    4   17   13   10   12    5 |    20   27   16   30   25   19   26   18   21   17    19
  13  |    8   13    7   11   22    5    7   13    7   10    4 |    33   37   31   38   45   33   38   39   36   35    35
  14  |   11    8    6    9   16    5    8   11    9    7    3 |    29   26   24   30   26   25   27   19   24   21    24
  15E |   10   12    6   14   15    4   14   10    9   13    4 |    23   29   19   29   24   22   27   23   25   32    24
  16  |   18   15    7   15   13    4   11   12   11   11    4 |    24   22   14   26   20   18   22   21   20   16    18
  17  |    8    9   10    8   15    4    9   10   11   14    3 |    24   24   15   22   29   19   25   16   24   16    19
  18  |   17   12    8   13   21    4   11   20   10   18    5 |    29   33   20   30   40   23   32   26   27   23    25
  19  |   13   13   10   10   16    5   10   12   13   18    4 |    21   23   14   16   26   15   25   20   20   10    16
  20  |    8   12   11   15   19    5   12   18   11   15    4 |    30   35   27   39   42   29   33   44   34   30    33
  21  |   10    8   10   10   14    5    9   14    9   13    3 |    34   35   29   33   42   28   36   37   34   34    33
  22  |   14    8   11    9   17    4    8   11    9   15    4 |    30   31   24   29   41   27   33   30   32   28    27
  23E |   14   10    8   14   15    3   11   12    8   13    4 |    21   23   17   24   23   18   25   19   18   23    18
  24  |    7   10    5    7   13    5    6    9    9   11    3 |    17   25   16   20   20   19   23   24   20   16    19
  25  |    8   10    5    9   19    2   12    8    8    8    3 |    22   24   14   26   27   18   24   18   17   19    19
  26  |   17   18    6   11   10    5    9    9    8    7    4 |    25   27   14   24   23   18   27   19   21   19    20
  27  |    5    8    5    7   12    3    9    7    8    7    2 |    20   26   15   22   25   19   26   22   19   20    20
  28  |   10    9    6    6   20    3    8    8    9   12    3 |    21   24   15   19   29   17   22   19   19   13    17
  29  |   16   14   10   13   18    3   14   16   14   12    5 |    29   28   19   23   26   19   26   20   20   19    20
  30  |    7   10    5    7   10    3    8   11    8    8    3 |    23   31   21   22   24   23   28   28   23   21    23
  31  |   11   10    7   13   15    5    9   10    9   14    3 |    28   31   26   31   29   26   32   24   25   21    25
  32E |   15   14    7   13   14    5    9   11   12    7    4 |   250  254  247  249  248  252  253  251  250  249   251
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11    8   10   15    4   10   12   10   12      |T   34   37   29   35   38   31   37   33   33   32    32
 WRMS |   11   11    8   10   14    4   10   11    9   12      |NE  28   31   22   28   31   24   30   27   27   24    26
 MEDI |    8   10    7    9   15    4    9   11    9   11      |MD  28   31   21   28   27   24   28   24   24   23    24

Table 3.1894.1   GPS week: 1894   Day: 1   MJD: 57503.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10    7    5    9   11    4    7    7    7    9    2 |    30   39   24   28   38   29   38   31   32   33    31
   2  |   10   10   13   11   14    4    7   15   10   13    4 |    26   25   24   27   24   22   25   27   25   24    23
   3  |   11   10    6    7   13    4    7    9    7    8    3 |    23   27   19   24   23   21   27   23   25   24    22
  X4  |    3  ---  ---  ---  ---   63  ---  ---  ---  ---    0 |    70  ---  ---  ---  ---   28  ---  ---  ---  ---    71
   5  |   10   14   12   12   18    6   10   17   11   12    4 |    24   34   21   27   24   24   32   17   23   23    22
   6  |    9   10    6    9   12    4    8    9    8   10    3 |    29   35   23   33   37   28   37   30   32   32    31
   7  |   14   10   10   13   16    5    8   10   11   17    4 |    27   31   20   27   26   22   28   21   27   17    22
   8  |   10   10    6    7   12    4    9    8    8   10    3 |    21   27   14   22   24   19   26   24   23   25    21
   9E |   10    9    6    8   13    4    9   10    8    7    3 |    17   21   10   19   19   14   21   16   16   18    15
  10  |    8    8    6    9    9    4    8    9    6    9    2 |    25   31   23   24   24   24   30   22   27   28    25
  11  |    9    8   15   12   16    4    6    7    8   11    3 |    26   36   26   25   39   26   35   26   28   34    28
  12  |   11   16    7   19   18    4   18   13   12   13    5 |    24   26   16   30   22   19   27   18   24   16    19
  13  |   11   14    5   12   25    4    7    9    9   10    4 |    34   39   33   38   46   35   39   35   33   33    35
  14E |   15    8    7   12   17    6   10    9    7    7    3 |    30   26   23   29   24   23   26   22   27   25    25
  15E |   11   11    7   14   16    4   12    9    9   14    4 |    27   29   22   31   23   24   27   24   24   28    25
  16  |   19   17    8   14   15    4   11   15    9   12    4 |    25   23   17   25   22   19   23   20   22   19    19
  17  |    8    8   10    9   14    4    9   12   10   12    3 |    25   27   18   24   25   20   26   17   20   16    19
  18  |   17   14   10   15   19    5   13   19   10   19    5 |    29   31   21   28   27   22   29   19   24   19    21
  19  |   13   11   10   12   17    5    9   11   12   16    4 |    24   26   19   18   25   18   26   17   16   13    17
  20  |   13   13   11   16   18    5   12   19   10   15    5 |    25   30   23   32   28   24   26   33   26   22    25
  21  |    8    9   11   12   13    4   10   12    8   15    4 |    26   28   22   28   28   23   27   26   25   30    24
  22  |   16    9   10   11   18    4    8   14    9   13    4 |    22   27   19   25   33   21   26   23   24   21    21
  23E |   16   11    6   12   13    4   10   12    9   14    4 |    28   29   25   30   33   25   28   27   27   29    26
  24  |    8    7    5    7   12    4    7    8   10   10    3 |    19   25   17   24   22   19   25   23   22   19    20
  25  |    7   13    5   10   19    3   11    7    8    7    3 |    20   24   14   24   23   18   22   19   19   19    18
  26  |   15   14    5   10   11    3    8   12    7    7    3 |    26   23   15   26   25   21   24   21   26   22    21
  27  |   11    7    5    7   11    4   10    8    7    8    3 |    18   24   11   22   21   17   22   21   20   18    18
  28  |    7    9    8    7   20    4    8    9    7   13    3 |    22   27   16   20   30   19   25   20   21   17    20
  29  |   16   15   10   16   20    4   13   15   12   13    5 |    27   23   18   27   20   19   23   16   18   18    18
  30  |    9    9    8    8   10    7    7   12    8    8    3 |    21   30   16   24   24   22   28   24   24   21    22
  31  |   10   10    9   13   16    4   10   10    9   14    4 |    25   29   22   29   31   23   31   20   24   16    23
  32E |   18   11    7   13   10    5   11    8   10    8    4 |   256  259  251  254  255  255  258  254  256  256   255
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11    8   12   16    4   10   12    9   12      |T   33   35   27   33   34   29   35   30   31   30    31
 WRMS |   12   11    8   11   14    4   10   11    8   12      |NE  26   28   19   25   26   21   27   22   23   21    23
 MEDI |   10   10    7   12   15    4    9   10    9   12      |MD  25   27   20   27   25   22   27   22   24   22    22

Table 3.1894.2   GPS week: 1894   Day: 2   MJD: 57504.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7    8    6    9   13    4    6   10    7    9    3 |    33   41   28   34   41   33   40   37   37   38    34
   2  |    7   10   12   10   11    4    7   14   10   14    3 |    25   25   22   24   20   20   26   29   25   22    22
   3  |   10    6    6    7   14    4    7   10    7    7    3 |    24   23   16   18   17   18   23   20   23   18    18
  X4  |    4  ---  ---  ---  ---   53  ---  ---  ---  ---    0 |    51  ---  ---  ---  ---   27  ---  ---  ---  ---    49
   5  |   13   12   10   12   18    4    8   18   14   13    4 |    27   31   22   24   21   21   28   14   21   17    20
   6  |    8    9    6    9    9    5    7   10    5   10    3 |    31   39   27   34   39   31   39   36   39   34    34
   7  |   11    9   10   10   14    5    7   10    9   19    4 |    26   28   22   28   27   24   29   22   27   19    22
   8  |    9    7    5    7   15    4   10    9    7   12    3 |    23   27   16   22   26   20   26   24   22   26    21
   9E |    7   12    4    8   12    4    9   10    9    7    3 |    18   19    9   17   14   15   20   15   22   18    14
  10  |    9    7    5    5   13    4    8    9    6    8    2 |    28   31   22   26   23   26   31   25   27   27    25
  11  |   11    9   15   10   17    5    7    8    9   15    4 |    32   38   29   30   39   29   37   30   34   39    31
  12  |   13   12    8   15   22    5   16   13   10   12    4 |    23   24   14   27   23   19   24   16   22   17    17
  13  |   11   13    6   11   28    4    9   12    9   10    4 |    31   32   27   32   42   31   35   28   28   27    30
  14E |   12   11    6    8   18    6    9    9   10    7    3 |    31   27   25   34   25   27   29   25   29   30    26
  15E |    9   10    7   12   17    4   12   12    8   13    4 |    18   22   14   22   15   16   21   18   17   24    17
  16  |   17   27    8   14   15    4   11   12    9   11    5 |    23   30   13   23   19   16   22   18   20   16    16
  17  |   10    8    9   10   16    4    9   13   10   16    4 |    23   25   13   21   25   18   25   15   22   16    17
  18  |   19   10   10   12   23    4   13   19   10   16    5 |    28   28   20   27   30   21   28   23   27   21    22
  19  |   13   14   11   11   18    6   11   13   11   20    4 |    23   26   17   16   23   17   27   17   19   12    16
  20  |   13   12   11   14   20    4   11   21   12   13    5 |    23   26   23   32   32   22   26   36   28   24    25
  21  |   11    8    9   11   15    4    8   11   11   15    4 |    27   28   23   29   30   22   29   29   29   28    26
  22  |   13    9   11   10   18    4    7   13   11   15    4 |    23   25   18   26   30   20   25   23   27   20    20
  23E |   15   10    5   15   19    5   10   13    8   12    4 |    20   22   15   22   25   16   20   19   21   19    17
  24  |    8    8    7    8   15    4    9    7   10    9    3 |    19   22   13   21   22   18   22   20   22   14    17
  25  |    7   12    4    6   20    3   11    8   10   11    3 |    20   21    9   20   22   16   20   17   19   18    15
  26  |   12   23    4    9   11    5   10   11   10    8    4 |    21   26    9   24   21   17   22   17   22   19    16
  27  |    7    8    4    8   13    3    8    5    7   10    2 |    18   20   12   20   20   15   19   17   19   17    16
  28  |    7    9    7    8   19    3    6    8    8   11    3 |    21   24   15   21   27   18   24   19   22   16    19
  29  |   20   13    7   12   20    5   13   18   11   15    5 |    29   22   16   21   19   16   22   16   19   15    15
  30  |    6   10    6    5   11    4    7   11    6   11    3 |    23   28   15   21   24   20   27   24   21   22    20
  31  |    9   11    7   10   19    4   10    9   13   11    3 |    26   28   20   26   29   22   30   20   24   17    21
  32E |   15   12    7    9   15    6   10    9   15    8    4 |   243  249  242  249  241  246  246  245  246  247   244
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   12    8   10   17    4   10   12   10   12      |T   32   34   25   31   32   28   33   29   31   28    28
 WRMS |   11   12    8   10   15    4   10   12    8   13      |NE  25   27   18   24   25   21   26   22   24   21    22
 MEDI |   10   10    7   10   16    4    9   11   10   11      |MD  23   26   17   24   25   20   26   20   22   19    20

Table 3.1894.3   GPS week: 1894   Day: 3   MJD: 57505.000                            

        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    3   10    9    3    9    8    6    9    2 |    38   45   33   37   52   37   46   41   36   39    39
   2  |    9    9   13   13   15    4    8   16    9   14    4 |    24   25   23   29   28   21   28   32   27   23    24
   3  |   11    7    5   10   14    5    6    9    6   10    3 |    23   26   18   21   20   20   25   21   24   24    20
  X4  |    3  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    42  ---  ---  ---  ---   27  ---  ---  ---  ---    42
   5  |   11   12   10   14   19    5   10   18   12   13    4 |    33   38   30   29   23   29   34   19   27   25    27
   6  |    8    7    5   10   11    5    7   10    7    8    2 |    36   42   30   41   47   34   43   41   36   37    37
   7  |   10    9    9   11   17    5    8    9    8   16    3 |    28   34   25   32   31   26   29   25   30   23    26
   8  |    9    9    4    7   15    3    7    8    9   12    3 |    20   27   17   22   22   20   26   23   25   28    21
   9E |    8   12    6    8   16    5    9   11    8   12    3 |    16   23   13   19   18   16   21   18   22   22    16
  10  |    5    6    4    8   13    3    6    8    7   10    2 |    24   29   21   25   19   23   28   24   26   28    24
  11  |    8    6   14   11   14    4    9    7    9   14    3 |    30   40   32   33   50   31   42   33   32   40    34
  12  |   10   13    6   16   20    4   14   13   13   15    4 |    22   26   16   27   21   19   26   18   22   20    19
  13E |   10   10    6   13   18    5    9   14    9   10    3 |    45   47   43   47   44   44   44   47   49   47    45
  14E |   13    7    6   11   19    5    8    9    8   10    3 |    26   27   21   25   23   23   25   19   24   23    22
  15E |    8   10    7   14   22    3   11   11   10   11    4 |    21   24   18   27   21   21   23   19   24   25    21
  16  |   11   22    8   15   17    4   12   14   10   14    4 |    21   27   15   25   22   18   21   19   21   18    17
  17  |   10   10    7   10   17    5    8   14    9   12    3 |    26   26   17   21   27   21   26   20   20   17    19
  18  |   18   10   11   14   21    4    9   18   10   19    5 |    31   30   22   27   36   22   29   23   23   19    23
  19  |   15   11    9   12   18    6    9   12   11   18    4 |    26   25   17   16   24   18   26   17   17   12    17
  20  |   12   12   11   15   19    4   11   20   11   16    5 |    24   28   24   35   37   23   28   34   27   21    26
  21  |   10    7   10   10   15    4    6   11    9   13    3 |    27   29   24   31   37   23   30   31   24   30    27
  22  |   11    8   10   12   17    4    8   13   10   13    3 |    28   29   21   27   40   23   30   26   26   24    25
  23E |   16   12    6   15   19    5    9   12    8   13    4 |    25   24   17   23   26   19   23   21   22   26    19
  24  |    6    7    6    6   15    4    7    6    9   15    3 |    21   25   18   24   22   22   24   22   24   21    21
  25  |    7   12    5    9   20    3   10    9    6   10    3 |    19   20   12   21   23   16   22   18   21   18    17
  26  |   11   17    5   10   14    4    9   13    9    8    3 |    23   26   12   23   26   18   23   19   21   20    18
  27  |    8   12    4    8   14    3    7    7   10   10    3 |    18   24   13   23   21   17   22   19   21   20    18
  28  |   10    7    6    9   21    4   10    9    7   13    3 |    24   27   18   21   30   21   23   20   22   19    20
  29  |   18   16    8   15   20    4   12   19   12   14    5 |    26   22   15   22   20   16   20   16   16   17    15
  30  |    6    9    4    5   14    3    8   10    6   14    3 |    24   33   21   27   24   25   30   28   28   27    26
  31  |    8   12    7   12   17    3    8   10   10   13    3 |    24   30   23   29   28   24   30   21   26   17    23
  32E |   17   15    7   12   19    5    9    9   12   10    4 |   282  286  279  284  277  282  282  280  280  283   281
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11    8   11   17    4    9   12    9   13      |T   34   37   29   35   36   31   36   32   33   32    32
 WRMS |   10   11    7   11   16    4    9   11    8   13      |NE  26   29   20   26   29   22   28   24   24   23    24
 MEDI |   10   10    6   11   17    4    9   11    9   13      |MD  24   27   21   27   26   22   26   21   24   23    22

Table 3.1894.4   GPS week: 1894   Day: 4   MJD: 57506.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9    8    5   10   11    5    7    5    6    8    2 |    37   44   32   36   48   34   44   38   42   38    38
   2  |    9    7   14   11   12    5    7   17    9   13    4 |    25   28   24   27   24   21   27   29   26   24    23
   3  |    9    7    5    6   10    3    5    8    8    7    2 |    23   26   18   21   20   18   26   18   21   21    19
  X4  |    3  ---  ---  ---  ---   45  ---  ---  ---  ---    0 |    40  ---  ---  ---  ---   30  ---  ---  ---  ---    38
   5  |   12   12   11   13   17    4   10   17   12   13    4 |    31   36   27   29   25   25   33   21   21   27    25
   6  |    8    7    5    7    8    4    9   11    8    9    3 |    36   42   30   37   44   33   45   37   38   35    37
   7  |    8   10    9   11   48    4    9   11   13   17    5 |    27   31   25   32   55   25   31   23   28   20    25
   8  |   10    7    7    9   12    4   11    7    9   14    3 |    25   26   19   26   25   20   27   23   24   31    22
   9E |    9   12    5    8   22    4    9    9    8    7    3 |    21   21   13   20   19   14   21   18   19   19    16
  10  |    6    6    5    6   15    3    6    9    8    9    2 |    25   28   21   25   20   23   30   23   25   26    23
  11  |    8    8   14   11   14    6    8    8   10   12    3 |    32   38   31   33   46   31   39   30   37   35    33
  12  |   12   15    7   17   18    3   16   14   13   14    5 |    26   29   19   29   19   20   28   20   24   20    21
  13E |   11   10    8   10   14    4    8    9    7   11    3 |    26   28   26   26   29   23   27   26   28   29    26
  14E |   14    9    5   10   11    4    9    9    8    9    3 |    25   23   18   24   21   20   24   19   22   23    20
  15E |   10   12    7   14   19    3   12   16    8   12    4 |    24   25   23   28   20   23   27   26   26   30    24
  16  |   16   20    7   13   13    3   11   16   13   14    5 |    24   24   15   21   19   16   20   21   21   17    16
  17  |    8    9   10   10   13    4   10   14   11   11    3 |    25   27   19   24   28   19   28   17   23   18    20
  18  |   14   13   10   14   23    4   11   18   10   18    5 |    27   31   21   26   33   21   28   23   24   18    22
  19  |   16   14   10   11   16    5   11   13   12   19    4 |    27   32   22   21   25   19   30   19   22   13    20
  20  |   13   11   11   14   19    4   11   19   11   16    4 |    26   26   23   30   32   22   26   30   26   20    23
  21  |    9    8   10   10   12    4    7   11   10   11    3 |    28   27   25   29   31   23   28   28   26   26    25
  22  |   12    8   10    9   15    4    8   11   12   14    3 |    30   31   25   31   37   25   32   28   28   25    27
  23E |   16   12    7   14   16    3   11   13   10   10    4 |    27   25   18   25   26   19   24   21   23   22    20
  24  |    9    7    6    9   14    4    8    6    9   11    3 |    20   24   16   24   21   18   26   21   24   17    20
  25  |   10   11    8    8   16    3   11   10   13   11    3 |    21   24   14   22   20   17   24   20   20   21    18
  26  |   13   17    6   10   11    4    8   13   11    7    4 |    24   23   13   19   21   16   23   18   21   19    17
  27  |    9   11    4    6   14    3    8   10   13    8    3 |    22   21   13   21   21   16   22   18   22   20    17
  28  |    9    8    7    9   16    4    8    8   10   13    3 |    25   25   17   22   27   19   28   21   23   20    21
  29  |   12   14    7   13   19    4   16   16   15   14    5 |    26   23   19   25   19   19   26   17   20   19    18
  30  |    5   10    4    6   11    3    8   10    9   10    3 |    23   30   18   26   23   21   30   26   23   25    23
  31  |   13   10    7   12   16    4    9   10   11   14    4 |    26   29   22   25   27   22   31   20   24   17    22
  32E |   25   20    9   17   20    5   11   12   17   12    5 |   244  250  241  242  247  245  248  245  247  245   245
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11    8   11   17    4   10   12   11   12      |T   33   35   27   33   34   28   35   30   32   30    30
 WRMS |   11   11    8   11   15    4   10   11    9   12      |NE  26   29   21   26   28   22   29   23   25   22    23
 MEDI |   10   10    7   10   15    4    9   11   10   12      |MD  26   27   21   26   25   21   28   21   24   21    22

Table 3.1894.5   GPS week: 1894   Day: 5   MJD: 57507.000                            

        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    8    6    8   13    3    7    7    7    6    2 |    38   44   32   38   44   36   43   35   39   39    38
   2  |    8    7   13   11   12    5    8   16   11   13    4 |    26   28   25   26   24   24   28   31   28   26    26
   3  |    8    7    7    6   10    3    6    8    4    6    2 |    23   26   18   18   21   17   26   19   20   19    20
  X4  |    4  ---  ---  ---  ---   35  ---  ---  ---  ---    0 |    34  ---  ---  ---  ---   33  ---  ---  ---  ---    33
   5  |   14   11   11   14   19    5    8   19   12   15    4 |    32   37   27   26   24   26   31   17   25   27    26
   6  |    8   10    6    9   11    4    8   10    6    7    3 |    35   40   30   39   41   34   40   36   32   36    36
   7  |   12   10   10   10   13    4    8   10   11   17    4 |    31   33   25   31   28   26   30   26   31   23    27
   8  |   11    7    7    8   17    6   10   10   10   16    3 |    31   36   22   27   27   25   34   29   26   40    30
   9E |    7   14    7    6   14    3    9   11    9    8    3 |    23   26   17   22   19   19   25   21   25   22    22
  10  |    7    7    5    7   13    2    7   10    7   11    2 |    29   34   23   28   24   26   34   25   25   30    28
  11  |   10    8   15   10   19    4    9   11    8   11    4 |    30   38   30   33   43   30   39   26   33   36    32
  12  |    9   19    8   13   19    5   16   14   11   12    5 |    27   33   21   26   21   23   30   24   28   24    24
  13E |    9   16    9   11   17    5   10   11   10   11    4 |    30   31   27   30   30   26   30   26   29   28    28
  14E |   10   10    6   10   14    4   11    6    8   12    3 |    30   30   24   30   24   27   31   25   30   30    28
  15E |    9   11    8   13   20    3   11   13    6   14    4 |    29   27   24   32   20   23   29   22   25   34    26
  16  |   13   20    9   14   14    4   13   16   10   14    5 |    26   28   18   24   20   20   25   23   21   22    21
  17  |    9    8    9   10   15    4   11   13    8   11    3 |    28   28   20   27   31   24   29   18   24   20    24
  18  |   15   12   11   14   25    3   13   18   11   19    5 |    31   34   23   27   35   24   33   22   23   23    26
  19  |   15   11    9   10   17    5   10   14    9   19    4 |    26   28   20   23   29   22   29   22   23   17    22
  20  |   12   10   13   16   20    5   12   16   10   17    5 |    22   28   20   25   29   18   27   27   20   20    22
  21  |    9    7   12   10   18    4    9   13   11   13    4 |    28   31   25   24   28   23   28   27   26   29    26
  22  |   13    7   12    9   18    5    9   13   12   14    4 |    31   33   26   32   35   29   33   26   28   28    29
  23E |   16   14    8   13   15    3   11   13    8   11    4 |    24   27   19   23   20   19   24   23   21   21    21
  24  |    8   11    8    7   15    3    7   10   10   10    3 |    22   27   16   22   19   20   26   24   23   22    22
  25  |    9   10    7   16   16    5   12   10    9   13    4 |    24   27   16   30   21   20   25   24   23   26    22
  26  |   10   17    5   10   10    4    9   15    8    7    3 |    26   27   17   24   19   20   25   21   22   23    22
  27  |    8    9    5    7   14    4   11   11    7   10    3 |    27   27   21   25   25   22   28   20   22   28    24
  28  |    8    9    7    8   13    3    7   10    8   13    3 |    28   30   23   27   27   25   30   26   28   23    26
  29  |   19   14    8   14   20    4   13   17   13   15    5 |    29   25   17   20   16   18   25   17   19   19    19
  30  |    7   10    7    5   11    4    9    8    8   12    3 |    27   33   18   26   23   23   30   26   29   28    26
  31  |   10   12    7   10   15    5   10   10   11   13    3 |    29   31   23   27   26   25   32   24   27   21    26
  32E |   15   23    8   12   26   10   20   12   15   10    5 |   304  314  302  310  301  305  307  302  307  305   306
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   12    9   11   16    4   11   12   10   13      |T   36   40   31   36   35   32   38   33   34   35    34
 WRMS |   11   12    9   10   16    4   11   12    8   13      |NE  28   31   22   27   27   24   30   24   25   25    26
 MEDI |    9   10    8   10   15    4   10   11    9   12      |MD  28   30   23   27   25   24   30   24   25   26    26

Table 3.1894.6   GPS week: 1894   Day: 6   MJD: 57508.000                            

        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    9    6    8    9    2    6   11    8    7    2 |    42   49   40   47   55   43   50   47   46   45    45
   2  |   10    9   13   14   11    5    7   19   13   11    4 |    27   28   27   33   30   26   31   38   30   26    28
   3  |    8    8    7    5   10    3    8   12    8    9    3 |    21   25   20   20   18   19   26   21   19   25    20
  X4  |    4  ---  ---  ---  ---   42  ---  ---  ---  ---    0 |    47  ---  ---  ---  ---   32  ---  ---  ---  ---    48
   5  |   12   15   10   14   15    5    9   19   11   13    4 |    34   42   31   26   26   29   36   19   22   30    28
   6  |    6   10    5   10    8    5    9   13    9    8    3 |    36   44   35   46   52   38   46   47   43   40    42
   7  |   11   10    9   11   13    4    9   13   14   16    4 |    27   31   23   29   28   25   29   25   26   24    25
   8  |    9    8    7    9   15    4    9    9    7   13    3 |    24   28   22   25   25   23   30   24   24   34    25
   9E |    9   12    5    7   13    4    7   14   10   10    3 |    18   25   13   18   22   14   20   18   18   25    17
  10  |    9    8    8    7   13    5    9   12    6   11    3 |    29   32   29   27   24   28   33   27   29   33    28
  11  |    9    8   15    9   15    4    7   12   10    9    4 |    34   44   37   40   52   38   45   38   41   41    39
  12  |   10   13    7   16   17    3   15   16   18   14    5 |    23   25   20   29   23   22   26   20   24   22    21
  13E |    9   13    8   10   12    4    8   12    8    9    3 |    28   30   24   27   29   25   29   25   25   32    26
  14E |   15   13    6   10   16    3    9   10    8   14    4 |    28   29   25   31   29   27   30   27   29   35    27
  15E |    9   13    7   11   12    3    9   14    8   10    3 |    29   34   27   29   28   27   31   28   26   33    28
  16  |   15   22    9   13   13    5   10   16   14   13    5 |    24   30   18   23   19   20   23   22   24   20    19
  17  |    9   10    8   12   14    4   10   13    9   13    3 |    23   27   18   24   30   20   26   19   21   22    21
  18  |   16   12   11   13   22    5   11   20   11   17    5 |    31   34   25   29   39   25   32   31   24   27    27
  19  |   13   11    8   13   16    7    9   14   11   18    4 |    24   27   19   20   29   18   26   20   18   17    19
  20  |   10   12   12   15   17    5   10   17   11   14    4 |    31   36   32   41   43   32   33   39   35   30    33
  21  |   12    9   13   10   13    4    7   16   13   10    4 |    30   33   27   33   39   28   33   40   33   33    31
  22  |   10    8   12    9   15    3    7   14   11   11    3 |    30   34   29   35   41   31   35   30   33   30    31
  23E |   16   13    8   13   20    4    8   15   11   12    4 |    19   22   16   22   21   16   21   19   20   26    17
  24  |   10    9    6    9   10    6    7   10   11    9    3 |    23   25   18   25   20   21   26   24   21   24    21
  25  |    9   11    8   17   15    6   10   13   16   10    4 |    22   24   17   27   22   20   23   24   19   25    20
  26  |   18   18    5    8   12    5    9   19   14   10    4 |    27   27   17   22   24   20   24   20   26   21    20
  27  |   10   15    5    6   11    4    9   14    9    7    3 |    19   23   18   21   23   19   25   20   23   23    20
  28  |    7    9    7   10   15    4    8   10   10   12    3 |    21   29   21   25   28   22   27   24   20   23    22
  29  |   18   17    8   15   18    5   10   18   14   13    5 |    28   25   17   22   23   19   23   19   20   22    19
  30  |    7   10    5    5   12    4    7   10   10    8    3 |    24   32   19   26   25   24   28   26   25   25    24
  31  |   16   10    8   10   15    4    9   17   14   15    4 |    28   30   25   30   30   25   33   26   24   22    25
  32E |   50   49   23   44   47   12   34   35  115   40   15 |   581  598  593  580  570  592  590  603  582  603   589
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   14   15    9   13   16    5   11   15   23   14      |T   44   49   42   46   47   42   48   45   44   46    43
 WRMS |   11   13    9   10   13    4   11   14   10   11      |NE  28   31   24   29   30   25   30   27   26   27    26
 MEDI |   10   11    8   10   14    4    9   14   11   11      |MD  27   30   23   27   28   25   29   25   24   26    25



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 4.1894   GPS week: 1894   MJD: 57502.0-57508.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |U    5     5    13 |U    7     9    26 |U    6     7    16 |
emr | emr 2975 |     7     6    16 |U    7     8    29 |     9     8    19 |
esa | esa 2976 |     6     6    14 |U    7    10    29 |     7     8    18 |
gfz | gfz 2976 |U    5     5    14 |U    7     9    25 |U    6     6    16 |
grg | grg 2975 |U    6     7    18 |U    7     9    36 |    10     8    21 |
igr | igr 2975 |     5     5    14 |     6     9    26 |     7     7    17 |
igs | igs 2976 |     5     5    13 |     6     8    26 |     7     7    17 |
jpl | jpl 2976 |     6     5    15 |U    7     9    28 |     8     8    21 |
mit | mit 2976 |     5     6    14 |U    7    10    29 |U    7     7    17 |



Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit 
         positions and satellite clock corrections at 15 min intervals.

         Each line gives the daily station RMS w.r.t. the estimated coordinates 
         for the Latitude, Longitude and Height components.
        
         CLK  - Satellite clocks used.
         EPO  - Number of satellite clock epochs available for that day.
         Units: mm.

Table 5.1894.0   GPS week: 1894   Day: 0   MJD: 57502.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     4    11 |     9    11    31 |     5     6    18 |
emr | emr 2976 |     6     6    16 |     7     9    29 |     8     9    20 |
esa | esa 2976 |     6     5    14 |     9    10    30 |     6     7    19 |
gfz | gfz 2976 |     5     5    12 |     8    11    28 |     5     5    18 |
grg | grg 2976 |     6     7    17 |     8    10    44 |     8     8    21 |
igr | igr 2976 |     5     4    12 |     8    11    29 |     5     6    19 |
igs | igs 2976 |     5     4    12 |     8    10    28 |     6     6    18 |
jpl | jpl 2976 |     6     6    15 |    10     8    31 |     7     7    22 |
mit | mit 2976 |     5     6    13 |     8    12    29 |     6     8    17 |

Table 5.1894.1   GPS week: 1894   Day: 1   MJD: 57503.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     6    14 |     8    14    31 |     6     7    19 |
emr | emr 2975 |     6     7    16 |     9    10    30 |    10    10    21 |
esa | esa 2976 |     5     7    14 |     7    12    33 |     7     8    20 |
gfz | gfz 2976 |     5     5    13 |     7    13    28 |     7     5    17 |
grg | grg 2976 |     6     8    19 |     7    11    37 |    10     9    23 |
igr | igr 2976 |     5     6    13 |     7    12    31 |     7     7    19 |
igs | igs 2976 |     5     6    13 |     7    11    29 |     8     7    19 |
jpl | jpl 2976 |     5     5    16 |     7     9    29 |     8     9    23 |
mit | mit 2976 |     5     5    12 |     8    12    32 |     7     7    17 |

Table 5.1894.2   GPS week: 1894   Day: 2   MJD: 57504.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     6    16 |     5     8    23 |     6     8    17 |
emr | emr 2976 |     9     6    19 |     7     8    32 |    10    10    21 |
esa | esa 2976 |     8     7    18 |     5    11    29 |     8    10    22 |
gfz | gfz 2976 |     7     6    15 |     5     9    24 |     7     7    17 |
grg | grg 2976 |     8     9    23 |     6    11    29 |     9     9    24 |
igr | igr 2976 |     7     6    16 |     4     9    25 |     7     8    19 |
igs | igs 2976 |     7     6    16 |     4     9    26 |     7     8    19 |
jpl | jpl 2976 |     8     5    16 |     4    10    27 |     8    10    24 |
mit | mit 2976 |     7     7    16 |     7    11    26 |     7     8    18 |

Table 5.1894.3   GPS week: 1894   Day: 3   MJD: 57505.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     5    13 |     6     9    27 |     6     7    12 |
emr | emr 2976 |     8     6    16 |     7     9    35 |     8     7    14 |
esa | esa 2976 |     6     5    15 |     6     9    33 |     7     8    15 |
gfz | gfz 2976 |     6     5    15 |     6     9    28 |     6     6    13 |
grg | grg 2976 |     7     7    18 |     6     7    40 |    12     8    21 |
igr | igr 2976 |     6     4    14 |     6     8    30 |     6     7    13 |
igs | igs 2976 |     6     4    14 |     6     7    29 |     6     7    13 |
jpl | jpl 2976 |     6     5    15 |     7     8    34 |     7     7    15 |
mit | mit 2976 |     6     5    15 |     7     9    38 |     7     7    15 |

Table 5.1894.4   GPS week: 1894   Day: 4   MJD: 57506.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     5     5    12 |    10     8    27 |     5     6    17 |
emr | emr 2976 |     7     7    15 |     8     8    27 |     7     6    18 |
esa | esa 2976 |     6     5    13 |    10     9    30 |     6     7    17 |
gfz | gfz 2976 |     5     5    15 |    10     8    29 |     6     6    16 |
grg | grg 2974 |     7     4    18 |     8    10    36 |    10     9    20 |
igr | igr 2976 |     5     6    15 |    10     8    26 |     6     7    18 |
igs | igs 2976 |     6     5    14 |    10     8    27 |     6     6    17 |
jpl | jpl 2976 |     6     7    15 |    10     8    28 |     8     6    18 |
mit | mit 2976 |     5     6    14 |    11     8    31 |     6     5    18 |

Table 5.1894.5   GPS week: 1894   Day: 5   MJD: 57507.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     5     9 |     6     8    21 |     6     9    17 |
emr | emr 2976 |     5     7    14 |     8     9    29 |     7     6    21 |
esa | esa 2976 |     5     5    10 |     6    10    26 |     7    10    19 |
gfz | gfz 2976 |     4     6    10 |     5     9    22 |     6     8    17 |
grg | grg 2976 |     5     5    14 |     6     8    30 |    11    10    20 |
igr | igr 2976 |     4     6    11 |     6     9    24 |     7     9    19 |
igs | igs 2976 |     4     5    10 |     5     8    22 |     7     9    19 |
jpl | jpl 2976 |     5     4    11 |     6    10    25 |     8     9    23 |
mit | mit 2976 |     4     7    14 |     6    11    26 |     7     9    17 |

Table 5.1894.6   GPS week: 1894   Day: 6   MJD: 57508.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     5    14 |     5     6    20 |     7     5    12 |
emr | emr 2976 |     6     5    15 |     6     7    21 |     9     6    19 |
esa | esa 2976 |     6     5    13 |     5     8    21 |     8     7    17 |
gfz | gfz 2976 |     4     5    15 |     5     5    18 |     8     5    14 |
grg | grg 2976 |     6     6    18 |     6     6    34 |    12     7    20 |
igr | igr 2974 |     5     5    15 |     5     6    19 |     8     6    16 |
igs | igs 2976 |     5     5    14 |     5     6    18 |     8     6    16 |
jpl | jpl 2976 |     6     6    15 |     6     8    21 |    10     9    23 |
mit | mit 2976 |     4     5    14 |     5     6    20 |     8     6    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 6.1894   GPS week: 1894   MJD: 57502.500-57508.500

                                                         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 |     -14     -32     112      81     -2 |       9     18
            |      20      15      66      82      2 |       3
emr   uuuuu |       7      28    -170      61     -6 |      40     43
            |      19      20      29      43      3 |       3
esa   uuuuu |       6      -5      75      -9      1 |      16     23
            |      13       8      41      30      5 |       3
gfz   uuuuu |       0      -6      75     -27      1 |      16     24
            |      22      28     142      52      4 |       4
grg   uuuux |     -38     -10      65      33     20 |      34     39
            |      19      14      53     124     30 |       5
igr   xxxxx |     -33      -9      37       2      8 |      -9     21
            |       8      20      60      46      5 |       4
irf   xxxxx |      16     -10      -3     -76     12 |      -9     23
            |       7      11      25      29      6 |       7
jpl   uuuuu |     -21       9     -38      85      8 |      38     43
            |      14      21      79      63     10 |       5
mit   uuuuu |      19      -9     -73    -227      4 |      25     31
            |      14      14      75      54      2 |       3
ngs   uuuuu |      -6      10     -64    -109     -1 |      10     20
            |      36      28     192     121      2 |       4
sio   uuuux |      40      11      19     138     14 |      67     70
            |      34       9      56      57      7 |       6


Table 7.1894.0   GPS week: 1894   Day: 0   MJD: 57502.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -28     -22     114     169     -1 |       8     17
emr   uuuuu |       4      15    -149      83     -9 |      40     43
esa   uuuuu |       2      -8      54      38      0 |      15     23
gfz   uuuuu |     -22      23     -30     -13      0 |      13     21
grg   uuuux |     -36     -18      22    -161     21 |      25     32
igr   xxxxx |     -36      13     -61     -64      3 |     -13     23
irf   xxxxx |      13     -16       3    -126     18 |     -17     25
jpl   uuuuu |     -19       7     -72     -12      2 |      34     39
mit   uuuuu |      14      -8     -39    -279      2 |      24     30
ngs   uuuuu |      56      -1      51       9      2 |       6     20
sio   uuuux |       6      11      48      85      8 |      61     63

Table 7.1894.1   GPS week: 1894   Day: 1   MJD: 57503.500

                                                         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 |      -5     -44     193     130     -2 |       6     16
emr   uuuuu |     -19      21    -195      14    -10 |      37     41
esa   uuuuu |      -4      -6      58      13     -4 |      12     21
gfz   uuuuu |      16      24      99     -69      9 |      11     20
grg   uuuux |     -58     -15      33    -106     -2 |      29     34
igr   xxxxx |     -33     -25       0       4      2 |     -15     24
irf   xxxxx |       7     -26      16     -93     20 |     -17     25
jpl   uuuuu |     -12      36    -108      56      1 |      32     38
mit   uuuuu |      16     -26     -35    -215      3 |      21     27
ngs   uuuuu |       8      -6      18      24     -2 |       5     20
sio   uuuux |      40       3     -22     111     10 |      60     63

Table 7.1894.2   GPS week: 1894   Day: 2   MJD: 57504.500

                                                         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 |     -29     -45     145      68      0 |       8     19
emr   uuuuu |      14      53    -157      38     -7 |      40     43
esa   uuuuu |      33       7      26      -3     -4 |      15     24
gfz   uuuuu |      -5      -1    -112      34     -1 |      15     25
grg   uuuux |     -54      17      13      33      9 |      33     38
igr   xxxxx |     -28     -39      41     -33      8 |     -11     24
irf   xxxxx |      27      -7      -2     -65     15 |     -12     26
jpl   uuuuu |     -25     -30     -65     149      4 |      35     41
mit   uuuuu |       4      -4     -26    -223      5 |      23     30
ngs   uuuuu |       3      -4     195    -170      1 |       8     22
sio   uuuux |      17      16     -28     115      9 |      65     68

Table 7.1894.3   GPS week: 1894   Day: 3   MJD: 57505.500

                                                         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     -28     111     121     -1 |       9     20
emr   uuuuu |      42       2    -146     139     -2 |      41     44
esa   uuuuu |       6       2      48     -20      1 |      16     24
gfz   uuuuu |       2       5      -5      23      1 |      16     26
grg   uuuux |     -56     -15     129      88    -21 |      34     40
igr   xxxxx |     -35      -4      48      11      8 |      -9     24
irf   xxxxx |       9      -6     -16     -40     12 |      -9     26
jpl   uuuuu |     -24       3     -38      73      1 |      37     43
mit   uuuuu |       4      -1     -72    -195      3 |      23     31
ngs   uuuuu |       4       0      54    -249     -3 |      10     23
sio   uuuux |      16      28     -64     172     13 |      67     70

Table 7.1894.4   GPS week: 1894   Day: 4   MJD: 57506.500

                                                         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     -51     109     136     -4 |      14     21
emr   uuuuu |      -4      17    -150      50     -5 |      44     47
esa   uuuuu |       7     -17      86     -28      4 |      21     27
gfz   uuuuu |      14     -27     155       1     -5 |      22     28
grg   uuuux |     -14     -11      33     136     26 |      36     41
igr   xxxxx |     -45      17      25       4     10 |      -3     20
irf   xxxxx |      21      -2      -3     -56      6 |      -1     20
jpl   uuuuu |     -46      23     -46     142     25 |      44     47
mit   uuuuu |      21     -24     -69    -215      6 |      29     34
ngs   uuuuu |     -24      72    -185    -269     -1 |      16     22
sio   uuuux |      32       4      69     120     17 |      74     77

Table 7.1894.5   GPS week: 1894   Day: 5   MJD: 57507.500

                                                         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     -29     137      -8     -1 |      12     18
emr   uuuuu |      15      53    -224      82     -8 |      41     44
esa   uuuuu |      -5     -11     146      -8      1 |      19     24
gfz   uuuuu |      27     -11     320    -102      4 |      19     25
grg   uuuux |     -29      -1      78      67     40 |      38     43
igr   xxxxx |     -34     -19     133       8     12 |      -5     18
irf   xxxxx |      19     -16      30     -64      8 |      -1     20
jpl   uuuuu |     -20       1     -71      40      1 |      43     47
mit   uuuuu |      25     -16     -33    -150      8 |      28     32
ngs   uuuuu |     -50       5    -331     -82     -4 |      13     18
sio   uuuux |      61       5      65     254     27 |      73     76

Table 7.1894.6   GPS week: 1894   Day: 6   MJD: 57508.500

                                                         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 |     -36      -7     -22     -52     -6 |       9     18
emr   uuuuu |      -5      34    -168      23     -5 |      37     40
esa   uuuuu |       4      -2     105     -57     10 |      16     22
gfz   uuuuu |     -36     -55     101     -62      1 |      17     23
grg   uuuux |     -17     -24     145     176     70 |      40     45
igr   xxxxx |     -18      -5      75      84     15 |      -6     18
irf   xxxxx |      15       6     -48     -86      5 |      -2     20
jpl   uuuuu |       0      21     134     145     21 |      42     45
mit   uuuuu |      45      14    -239    -316      1 |      26     31
ngs   uuuuu |     -43       4    -252     -28     -3 |      10     17
sio   uuuux |     106       9      68     111     16 |      73     76



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