[IGSREPORT-17989] Wk 1555 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Nov 12 09:16:03 PST 2009


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IGS Electronic Report   12 Nov 09:16:28 PST 2009      Message Number 17989
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1555   (Oct 25, 2009 - Oct 31, 2009)

Contacts: J. Ray       (jim.ray at noaa.gov),
          J. Griffiths (jake.griffiths at noaa.gov)


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. 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, no satellite L1/L2 delay calibration should be
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. 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 (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.

  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 3 weeks (21 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:

igs1555[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1555[0-6].clk  IGS GPS satellite and station clocks in SP3 format.
igs1555[0-6].cls  IGS GPS clock combination summary report.
igs15557.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15557.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and
    JPL. The other centres are excluded because they either provide broadcast
    clocks (NGS) or clock corrections are not provided (SIO).  The clock
    information not used is still compared to combination for completeness.  
    The value of 999999.999999 microseconds, according to the sp3 format 
    convention, is used to signify that no clock solution is available and 
    therefore must not be used.

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1478, a new solution from CNES/GRGS (GRG) is included for
    evaluation and statistics 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  |  ALL   | 1 1 24
                0  |  COD   | 24 4 9 25 27
                0  |  EMR   | SYOG
                0  |  ESA   | 4 8 9 25 27 SYOG
                0  |  GFZ   | 8 30 31 ABPO AUCK BJFS BOR1 BUE1 COCO CONZ DAEJ HARB
                0  |  GFZ   | HOLM HRAO HYDE JPLM KERG KOUR MBAR METS NICO NYA1
                0  |  GFZ   | ONSA OUS2 QAQ1 SANT SEY1 SFER SSIA SUTH WSRT WTZR
                0  |  GFZ   | YELL YKRO ZIMM
                0  |  GRG   | ONSA POTS
                0  |  JPL   | 32
                0  |  MIT   | 8 HARB
                1  |  ALL   | 1
                1  |  COD   | 24 4 9 27
                1  |  ESA   | 4 8 9 27 UNSA WTZR
                1  |  GFZ   | 2 4 7 8 9 21 27 31 ALGO AUCK BAKO BOR1 BRFT CHUR
                1  |  GFZ   | COCO DAEJ FAA1 GUAM HARB IRKT KIRU MAS1 MAW1 MIZU
                1  |  GFZ   | NYAL ONSA QAQ1 WHIT WSRT WTZR ZIMM
                1  |  GRG   | ONSA POTS
                1  |  JPL   | 32 DGAR
                1  |  MIT   | IRKT MIZU IRKT MIZU SYDN TRO1
                2  |  COD   | 9
                2  |  ESA   | 4 9 CEDU UNSA
                2  |  GFZ   | 2 5 19 CAS1 COCO DAEJ HARB HRAO HRM1 IRKT JPLM KARR
                2  |  GFZ   | KIT3 ONSA PDEL RABT TSKB VILL YKRO ZECK
                2  |  GRG   | ONSA
                2  |  JPL   | 32 DGAR
                2  |  MIT   | 24 24
                3  |  ALL   | 1 1
                3  |  COD   | 9
                3  |  EMR   | SUTM
                3  |  ESA   | 9 CEDU WTZR
                3  |  GFZ   | 5 8 12 19 24 ALRT AREQ ASPA AUCK BAKO BOR1 BRFT CAS1
                3  |  GFZ   | CHPI COCO CONZ FAA1 GODE GRAZ GUAM HRM1 KIT3 MAC1
                3  |  GFZ   | MAS1 MBAR MIZU NICO NYA1 NYAL OUS2 PIE1 PIMO RAMO
                3  |  GFZ   | RIOP SANT SFER SSIA STJO TRO1 UNSA WSRT YKRO
                3  |  GRG   | ONSA WROC
                3  |  JPL   | 4 32 DGAR
                3  |  MIT   | 24 MIZU
                4  |  ALL   | 1
                4  |  COD   | 27 4 8 27
                4  |  EMR   | 9
                4  |  ESA   | 4 8 9 27 CEDU UNSA WTZR
                4  |  GFZ   | 9 16 24 BAKO BRFT BUE1 CHPI CONZ DAV1 DGAR DUBO FLIN
                4  |  GFZ   | GUAT HRM1 HYDE ISPA KIRU KIT3 MAS1 MBAR MIZU NRC1
                4  |  GFZ   | NYA1 ONSA QAQ1 RESO SANT SEY1 WAB2 WHIT WSRT YELL
                4  |  GFZ   | YKRO ZECK
                4  |  GRG   | WTZR
                4  |  JPL   | 32 DGAR
                4  |  MIT   | 24 24
                5  |  ALL   | 1 1
                5  |  COD   | 9 9 YAKT
                5  |  EMR   | CHUR
                5  |  ESA   | 8 9 UNSA
                5  |  GFZ   | 5 9 11 17 AREQ BOGT COCO DAEJ FAA1 FLIN HOLM HRAO
                5  |  GFZ   | HYDE IISC ISPA KIRU KIT3 MAL2 MBAR MIZU RAMO RIOP
                5  |  GFZ   | SEY1 SFER STJO SUTH SYOG TEHN TOW2 TRO1 WHIT WSRT
                5  |  GFZ   | XMIS ZECK
                5  |  GRG   | ONSA
                5  |  JPL   | 32 DGAR
                5  |  MIT   | 24 32 24 IRKT
                6  |  ALL   | 1
                6  |  COD   | 9 4 8 9 24
                6  |  ESA   | 4 8 9 24 27 UNSA
                6  |  GFZ   | 1 2 4 9 21 24 ALGO AREQ AUCK CHAT CHUR GODE GUAM
                6  |  GFZ   | HRM1 IRKT KIRU MAL2 MAS1 MBAR NYA1 RABT RESO SANT
                6  |  GFZ   | SYOG TOW2 TSKB VILL WSRT YKRO
                6  |  GRG   | ONSA ULAB
                6  |  JPL   | 32 DGAR
                6  |  MIT   | 27
                6  |  NGS   | 1

    
 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
               ----+--------+--------+-------------
                3  |  GFZ   | ~21:30 | ~ -0.56 ns

 6. The following orbit solutions were excluded from the combination because 
    they were biasing the weighted average (generally indicated by long arc RMS).
    They were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                1  |  COD   |  25
                1  |  SIO   |  25

 7. Velocity changes were estimated to alleviate the effects of modeling
    problems, experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G09 |    |    |    |  1 |    |    |    |

 8. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) 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.

 9. Small rotations were applied to the all AC orbit and ERP values in order
    to align them to the IGS05. These rotations were estimated in the process
    of the IGS SINEX combination, performed at NRCan by Remi Ferland, are based 
    on the common stations between the individual AC SINEX solutions and the 
    IGS05.snx SINEX. 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 |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |     .4    1.1     .9      -8    -11     -1    -.28
       EMR  |    1.1    3.8   13.0      75    -15     43     .29
       ESA  |    7.5    5.8   12.8     107    -19     61    -.25
       GFZ  |     .3    1.4     .8      23    -13     -3    -.16
       JPL  |    5.8    5.9   18.6      17     15    -22     .25
       MIT  |    4.5    6.5   10.8       3     17    -46    -.23
       NGS  |    7.8    3.6   10.2      55    -60    -19    -.19
       SIO  |    7.9    9.5    5.4     174    -87      1     .15


10. 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 navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

11. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and
    ERPs as generated by NRCan. For more information see IGSMAIL #2750.
    Because of this  change in alignment Table 2 has been enhanced with one 
    additional line per AC. This additional line shows the X- and Y-rotations 
    which were applied to each of the AC orbits prior to the orbit combination. 
    These rotations are based on the difference between the individual AC ERP 
    estimates and the IGS reference frame ERP product. The total rotation of
    the individual AC orbits w.r.t. the IGS combined orbit is the sum of the
    values in the two lines of Table 2 plus the reference frame rotation.

12. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) the absolute antenna
    model is introduced (IGSMAIL #5272). The antenna phase center offsets and
    phase center variations are given in the file:
        ftp://igscb.jpl.nasa.gov/pub/station/general/igs05.atx

    
ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    
      
Most combination statistics are with respect to the  combined orbits and
consist of five 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 1.1555.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1555.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 2.1555.[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 3.1555.[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 and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1555.0-6).

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 1555 summary.                       (Oct 25, 2009 - Oct 31, 2009)

Table 1.1555.a   GPS week: 1555   MJD: 55129.000-55135.000

         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  230|    0     0     1    98   -12    -4  -.17    9    8 |    -245    -293     22     79
        |    0     0     0    19    12    28   .01           |     296     664
emr   93|    0     1     4   -72   -11    37   .61   19   19 |     525    -906     16     79
        |    2     1     1    33    11    19   .03           |    2043     952
esa  129|    0    -1     0   -84    15    -3   .33   10   10 |    -351     138     21    124
        |    1     1     2    13    29    40   .03           |     596    1110
gfz  193|    1     0    -2    45   -34    -8  -.15   12   12 |     -44     228     35    126
        |    1     0     1    50    47    13   .03           |     442    1001
grg  107|    0     2     9    82   -62    18  1.02   27   25 |     321    -562     74    228
        |    1     0     2    29    14    15   .02           |     253     349
igr  n/a|    0     0     0    86   -31   -53   .05    5    5 |    1188    -565     24     82
        |    0     0     0    23    18    22   .02           |    1329    1043
jpl  130|    0     0     3    39   -72    38   .61   19   19 |    1585    -997     17     92
        |    1     1     1    26     8    32   .01           |    2040    1035
mit  263|    0     0    -4    95   -85   -21  -.31   13   10 |  -15099    -964     23    113
        |    0     0     1    28    16    11   .02           |     292    1060
ngs  222|    0     0     1   -37    97    -1  -.16   10    8 | -245108   73559   2094  15894
        |    0     0     1    38    40    32   .03           |  389266  197287
sio  260|    1     1     0  -249   106    -4  -.12   19   18 |     ---     ---    ---    ---
        |    1     0     1    21     9    15   .02           |     ---     ---


Table 1.1555.b   GPS week : 1555   MJD: 55129.000-55135.000   

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



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
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1555.0   GPS week: 1555   Day: 0   MJD: 55129.000                            

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  230|    0     0     1    71   -20    -4  -.17   10    8 |     -90    -611     13     64
        |                     38   -11                       |
emr   93|    0     2     4  -141    -2    76   .64   20   20 |    2370     236     17     86
        |                     58   -18                       |
esa  129|    0    -1    -2   -80     3   -57   .37   11   10 |    -705    1366     20    135
        |                    -19     7                       |
gfz  193|    0     0    -3   122    26     0  -.17   12   12 |     624   -1212     29    130
        |                     16   -39                       |
grg  107|   -3     2     7    39   -91     8  1.02   27   25 |     402    -298     71    210
        |                     43    65                       |
igr  n/a|    0    -1     0    53   -22   -74   .07    6    6 |    1666     708     26     72
        |                    -54   -49                       |
jpl  130|    0     1     1     1   -56    34   .63   19   19 |    2490     243     17     90
        |                     -3     6                       |
mit  263|    0     0    -3   149   -81   -12  -.33   15    9 |  -15507     114     19    102
        |                      0     7                       |
ngs  222|    0     0     1  -106    75    27  -.15   10    7 |    8810    9095   1889   3599
        |                     -7    23                       |
sio  260|    0     1     0  -209    95     1  -.12   19   18 |     ---     ---    ---    ---
        |                    111   -38                       |

Table 2.1555.1   GPS week: 1555   Day: 1   MJD: 55130.000                            

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  230|    0     0     1   121   -10    32  -.18    9    8 |    -463    -180     18     85
        |                    -32    21                       |
emr   93|    3     4     5   -43   -24    41   .64   20   20 |    2349   -1464     16     80
        |                      5    36                       |
esa  129|   -1    -2     1   -66   -14     8   .31   10    9 |      60    -635     16    106
        |                      6    19                       |
gfz  193|    1     0    -3    13   -37   -13  -.20   12   12 |     124     101     31    112
        |                      0   -47                       |
grg  107|    0     3     8   123   -64    43   .99   26   24 |     713   -1194     72    231
        |                    -34    65                       |
igr  n/a|    0     0     0   120   -13   -86   .05    5    5 |    2098   -1017     24     87
        |                    -44   -22                       |
jpl  130|    1     0     3    53   -70    67   .60   20   20 |    3639   -1580     19     95
        |                      1    40                       |
mit  263|   -1     0    -5    72   -71   -17  -.33   15   11 |  -15008     307     24    123
        |                     16    13                       |
ngs  222|    0     0     1     6   110   -63  -.16   12   10 | -999999  360077   2452   4126
        |                     29    38                       |
sio  260|    0     1    -1  -266   106    -9  -.13   17   18 |     ---     ---    ---    ---
        |                    109   -45                       |

Table 2.1555.2   GPS week: 1555   Day: 2   MJD: 55131.000                            

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  230|    0     0     1    93   -17    11  -.17    9    7 |     230   -1079     33    101
        |                    -17    -1                       |
emr   93|   -2     1     4   -75   -21    37   .63   19   19 |    1413    -184     20     89
        |                     -3    19                       |
esa  129|    0    -1     0  -105    12   -13   .32   11   11 |     144     -80     24    131
        |                     27     2                       |
gfz  193|    3     0    -2    63   -36    -9  -.10   13   13 |     -69     411     42    133
        |                    -19   -35                       |
grg  107|    0     3    10    96   -63    21  1.05   28   26 |     499    -240     72    246
        |                    -15    19                       |
igr  n/a|    0     0     0    71   -41   -61   .07    5    5 |    1744     236     22     73
        |                    -46    10                       |
jpl  130|    0     0     1    42   -76    84   .60   19   19 |    2864    -216     17     96
        |                     -3    50                       |
mit  263|    0     0    -4   110   -69   -23  -.33   13    9 |  -14804    -859     25    114
        |                     -1    10                       |
ngs  222|    0     0     1   -49    95   -20  -.14   10    9 |  -17886   25196   2100  88744
        |                     16    54                       |
sio  260|    0     1     0  -247   113   -15  -.12   18   18 |     ---     ---    ---    ---
        |                    103   -44                       |

Table 2.1555.3   GPS week: 1555   Day: 3   MJD: 55132.000                            

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  230|    0     0     0   106   -23     2  -.18    7    6 |    -275    -536     27     71
        |                    -15    36                       |
emr   93|    1     3     4   -78   -20    20   .57   18   18 |    1308   -1084     13     61
        |                     -9    17                       |
esa  129|    0    -1     1   -99    26    57   .35    9    9 |    -889    -157     25    128
        |                     -6   -44                       |
gfz  193|    0     0    -2    10   -12   -25  -.15   12   12 |     -10    -248     42    117
        |                      2   -29                       |
grg  107|    1     2    12    85   -57    17  1.02   26   22 |     260    -752     69    241
        |                     -7    27                       |
igr  n/a|    0    -1     0    71   -39   -38   .06    5    5 |    2045    -623     26     95
        |                    -22    -1                       |
jpl  130|    1     0     2    19   -79    27   .63   19   19 |    2525   -1141     15     92
        |                     12    75                       |
mit  263|   -1     0    -4    96   -66   -34  -.33   11   10 |  -15003   -1798     30    124
        |                     23    28                       |
ngs  222|    0    -1     1   -15    75   -10  -.18   11    9 | -541067  314744   1962   3539
        |                    -57    57                       |
sio  260|    0     1     0  -253   122   -29  -.14   19   18 |     ---     ---    ---    ---
        |                    117   -40                       |

Table 2.1555.4   GPS week: 1555   Day: 4   MJD: 55133.000                            

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  230|    0     0     1   102     2   -30  -.16    9    7 |    -125    -592     16     77
        |                    -24   -16                       |
emr   93|   -1     0     5   -58    -6    39   .64   19   19 |     615   -2157     15     78
        |                    -21    18                       |
esa  129|    0    -2    -1   -79    -4    35   .35    9    9 |    -205    -488     18    114
        |                     23     5                       |
gfz  193|    1     1    -2     8   -74   -22  -.14   11   11 |      50    -229     29    136
        |                     -3   -35                       |
grg  107|    0     2     4    98   -55     2  1.03   28   24 |     271    -613     80    209
        |                    -56    -8                       |
igr  n/a|    0     0     0    88   -14   -41   .05    5    4 |    1860   -1848     22     87
        |                    -75    -1                       |
jpl  130|    0    -1     4    74   -65    -8   .62   18   18 |    1861   -2273     16     95
        |                    -45   -53                       |
mit  263|   -1     0    -3    76  -105   -15  -.31   11    9 |  -14919   -2329     18    105
        |                      5    32                       |
ngs  222|    0     0     0   -10   145    13  -.20    9    7 | -190381 -204654   1952   3932
        |                     -6   -45                       |
sio  260|    2     0     2  -260   101     7  -.15   18   18 |     ---     ---    ---    ---
        |                    107   -48                       |

Table 2.1555.5   GPS week: 1555   Day: 5   MJD: 55134.000                            

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  230|    0     0     0    77     7    12  -.16    8    7 |    -287     -76     32     77
        |                     16   -16                       |
emr   93|   -1     0     4   -44     8    19   .59   20   20 |   -1143   -1770     17     76
        |                    -50   -20                       |
esa  129|    1    -3    -2   -84     8   -23   .35   10   10 |     367   -1022     26    126
        |                    -19    12                       |
gfz  193|    0     0    -2   100  -112    -2  -.15   12   12 |    -163     768     43    127
        |                      0   -16                       |
grg  107|    1     1    10    48   -58    33   .99   25   23 |     195    -618     89    223
        |                     36    -9                       |
igr  n/a|    0     0     0    91   -23   -51   .02    6    5 |     457   -1797     26     82
        |                   -119   -20                       |
jpl  130|    0     1     3    20   -79    11   .62   20   20 |     -22   -2078     23     97
        |                    -31   -65                       |
mit  263|    0     0    -3    97   -98   -38  -.29   11   10 |  -15524    -268     25    101
        |                     13    15                       |
ngs  222|    0     0     3   -66   144    28  -.13    9    7 |   15269     957   2117   3531
        |                     37   -23                       |
sio  260|    3     3     0  -234    94    -2  -.08   20   17 |     ---     ---    ---    ---
        |                    105   -48                       |

Table 2.1555.6   GPS week: 1555   Day: 6   MJD: 55135.000                            

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  230|    1     0     1   118   -24   -52  -.17    9    9 |    -708    1019     20     80
        |                    -49    15                       |
emr   93|   -3     0     1   -66   -13    24   .58   18   18 |   -3234      75     18     86
        |                     -9    30                       |
esa  129|    1     0    -4   -77    75   -33   .29   12   11 |   -1230    1987     20    129
        |                      8   -31                       |
gfz  193|    0     0     0    -3     6    11  -.13   13   13 |    -866    2009     35    128
        |                     15    20                       |
grg  107|   -1     3    12    84   -43     2  1.03   29   31 |     -92    -219     69    237
        |                     20    57                       |
igr  n/a|    0     0     1   112   -66   -21   .04    5    5 |   -1554     381     27     79
        |                    -81    29                       |
jpl  130|   -1    -2     5    61   -77    54   .61   20   19 |   -2259      63     17     81
        |                     -6   107                       |
mit  263|    0     0    -3    66  -102    -5  -.27   13   12 |  -14932   -1919     20    122
        |                     19    11                       |
ngs  222|    0     0     1   -20    31    12  -.13    9    7 |    9498    9503   2192   3787
        |                    -36   111                       |
sio  260|    3     2     1  -274   111    17  -.11   22   19 |     ---     ---    ---    ---
        |                     94   -71                       |

       
       
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 3.1555.0   GPS week: 1555   Day: 0   MJD: 55129.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   18  ---  ---   20  ---   23  ---   12   21  ---   10 |    20  ---  ---   27  ---   40  ---   26   38  ---    26
   2E |    9   27   12   11   19    5   23    9    7   15    5 |    20   31   18   17   24   19   26   18   19   24    18
   3  |    7   11   10    9   15    4    9    6    8   19    3 |    17   18   25   23   18   19   20   23   18   24    19
   4E |   21   24   20   17   30   11   22   59   24   29   11 |   136  145  144  137  147  142  148  151  144  148   142
   5  |    9   25   11   15   32    5   24   10   10   20    5 |    20   37   30   27   44   27   35   25   25   22    24
   6  |    7   13    9   11   16    6    9    9    8   15    3 |    21   21   26   27   18   21   21   27   20   23    22
   7E |   11   26    8   17   37    5   22   14    7   11    5 |    14   27   18   19   43   16   26   16   21   17    16
  X8E |   18   28   19   21  404    9  ---   13   23  ---    9 |    53   52   57   61  217   50  ---   53   49  ---    51
   9E |   17   19   13   17   18    8   18   12   14   15    6 |    66   67   69   65   68   67   65   68   66   63    66
  10  |    8   13   10    8   19    4   12   10   10   19    4 |    21   18   23   19   21   19   18   20   25   20    19
  11  |    8   13    7    9   26    5   13    7    6   14    3 |    12   19   18   15   36   17   19   18   20   22    16
  12  |    8   17    8    9   26    6   22    7    8   25    4 |    19   23   24   23   30   20   27   20   25   25    21
  13  |    9   22   12   12   33    5   23   15    8   15    5 |    17   32   24   20   40   20   31   20   25   19    20
  14  |    8   16    9   11   31    7   19   11    7   16    4 |    23   31   28   24   38   23   33   21   27   20    24
  15  |   10   20   13   13   27    7   26    8    8   15    5 |    18   25   25   19   29   18   25   15   20   19    18
  16  |    7   19    8   11   26    4   20   10    8   30    5 |    18   28   23   24   30   18   28   20   21   23    20
  17  |   10   20   11   10   30   10   21    8   10   24    5 |    12   33   17   13   40   17   32   17   19   19    15
  18  |    8   20   11   14   26    6   21    6    9   14    4 |    14   32   23   15   41   16   32   15   22   17    18
  19  |    8   23    9   10   25    4   22    8   10   24    5 |    19   35   19   14   38   21   33   18   21   24    20
  20  |    6   23    9   11   25    7   21   11   12   12    4 |    14   31   20   17   40   18   30   15   20   15    15
  21E |    7   14    7    9   44    4   18    7   11    9    3 |    14   23   16   16   36   16   23   17   21   16    16
  22  |    7   17   11   12   29    5   18   10   11   15    4 |    19   31   23   20   39   18   29   21   25   20    20
  23  |    8   26   13   11   27    4   24   10    8   16    5 |    15   33   23   20   36   18   32   17   21   16    17
 X24E |   23   26   24   27  ---   13  ---   28   31  ---   12 |    47   48   63   43  ---   43  ---   49   47  ---    48
 X25E |    9   18   12   13  ---    4  ---   15   13   23    5 |   150   16   20    7  ---   31  ---   19    9   25    20
  26  |    9   13    8    6   18    4   10   10   10   14    3 |    20   30   24   17   33   21   28   23   25   19    23
  27E |   13   19   12   14   20    7   17   10   10   17    5 |    20   27   25   22   28   22   27   18   23   16    20
  28  |    7   17    9   12   30    4   21    9   10   29    5 |    23   31   33   31   35   27   29   31   28   27    27
  29  |    8   19    9    8   36    5   22    6   13   33    5 |    18   33   25   13   45   21   34   17   23   23    20
 X30  |    8   13   10    9   17    6  ---   13   15  ---    5 |    28   28   34   27   34   27  ---   31   28  ---    29
  31E |    8   21   10   11   20    6   17   10    9   11    4 |    15   33   21   16   31   18   29   16   21   19    19
  32  |    8   20    9    9   12    7   17    9    7   14    4 |    19   26   19   17   25   18   24   19   20   18    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20   11   12   27    6   19   15   10   19      |T   29   34   30   26   44   27   33   27   29   26    27
 WRMS |    8   20   10   12   25    6   19    9    7   18      |NE  18   28   24   20   33   21   28   20   23   20    20
 MEDI |    8   19   10   11   26    5   21   10   10   15      |MD  19   31   24   20   36   20   29   20   22   20    20

Table 3.1555.1   GPS week: 1555   Day: 1   MJD: 55130.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   17  ---  ---   21  ---   16  ---   18   19  ---   10 |    17  ---  ---   23  ---   21  ---   24   28  ---    17
   2E |    8   25    7   10   21    5   21   13    9   13    4 |    17   29   17   19   27   18   23   22   27   23    18
   3  |    6   14   11   13   16    4   12    8   12   17    4 |    13   19   16   22   18   15   16   18   17   21    13
   4E |   23   20   26   15   21    5   21   58   21   19   11 |   116  126  120  114  131  116  130  119  115  125   118
   5  |    9   27    8   19   28    5   26   13   14   19    6 |    18   32   19   22   38   15   29   19   18   18    16
   6  |    5   14   10   11   15    5   11   11   12   13    4 |    16   22   16   24   21   18   19   22   20   18    15
   7E |   11   24    8   14   41    5   23   12   11    9    5 |    15   26   18   21   45   15   27   11   23   13    13
  X8E |   23  ---   20   58  ---   17  ---   17   25  ---   15 |    43  ---   42   77  ---   44  ---   43   51  ---    44
   9E |   20   21    9   14   18    8   20   20   20   14    6 |    40   51   43   47   49   45   50   52   51   46    44
  10  |    8   16    7   11   15    5   16   12   14   17    4 |    19   26   17   23   26   22   24   26   30   24    21
  11  |   10   17    7    6   23    4   17    8    9   14    4 |    16   22   15   15   28   14   20   17   18   21    11
  12  |    8   17   11   11   24    6   19   11    8   24    5 |    15   21   18   17   26   15   22   16   18   20    14
  13  |   11   23    8   12   32    3   25   13   15   13    5 |    14   31   18   16   44   18   31   16   25   18    15
  14  |    4   11   10   12   27    5   18    9    9   16    4 |    20   26   21   21   34   20   28   20   23   21    19
  15  |    7   21    8    8   26    5   28   10    9   12    4 |    16   25   19   16   29   16   28   15   16   20    15
  16  |    6   21    9   11   28    6   21    8   12   29    5 |    13   26   14   17   27   14   24   15   17   17    12
  17  |    8   18   10   13   30    9   25    9   12   19    5 |    12   29   21   18   38   18   30   18   21   17    15
  18  |    6   21    6   12   25    5   21    8   10   15    4 |    13   30   19   14   38   15   29   13   20   19    15
  19  |    7   22    8   14   23    6   23   11   12   25    5 |    15   29   14   13   30   12   28   14   17   17    12
  20  |    9   25    9   12   25    7   24   11   11   11    5 |    16   30   20   14   42   15   29   14   18   13    14
  21E |    5   18    8    9   50    6   23    9    8   12    4 |    21   27   20   23   48   21   33   21   30   19    20
  22  |    6   18    7    9   27    5   17   11    7   15    4 |    17   31   23   16   37   18   27   14   22   20    18
  23  |    9   26   10   17   30    4   25   11   13   13    5 |    14   32   21   19   38   18   32   16   22   16    16
 X24E |   22   21   20   23  ---   17  ---   40   26  ---   11 |    38   36   44   40  ---   32  ---   50   38  ---    35
 X25E |  747  ---   15  ---  ---  132  ---   16  ---  129   15 |   291  ---   46  ---  ---   60  ---   36  ---   30    40
  26  |    8   12   11   12   17    4   10   12    6   15    4 |    16   24   17   15   26   13   22   16   17   16    13
  27E |   13   20    7   11   19    6   20   10   14   16    5 |    14   25   16   23   27   17   26   21   24   17    17
  28  |    6   18   11   12   24    5   23   12   10   28    5 |    21   28   24   23   35   21   28   25   27   23    21
  29  |    9   18    8   10   34    5   20    8   10   28    5 |    15   28   20   11   38   16   29   12   20   18    14
  30  |    4   13    9    9   17    5   10    9   10   13    3 |    22   26   25   24   31   24   24   24   24   21    21
  31E |    5   20    9   13   19    4   21   11    8   15    4 |    16   27   20   19   30   17   27   17   20   25    16
  32  |    9   18    6   10   16    6   14   10    6   11    3 |    21   29   23   19   31   21   26   27   22   27    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   20   10   12   26    5   20   15   12   17      |T   30   31   25   25   36   23   30   24   27   24    22
 WRMS |    8   20    9   12   24    5   20   11   10   18      |NE  16   26   19   18   32   17   25   18   20   19    15
 MEDI |    8   20    9   12   24    5   21   11   11   15      |MD  16   28   20   19   31   18   27   18   22   20    16

Table 3.1555.2   GPS week: 1555   Day: 2   MJD: 55131.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   24  ---  ---   22  ---   26  ---   17   23  ---   12 |    16  ---  ---   37  ---   38  ---   19   36  ---    21
   2E |    9   24   10   15   24    4   24   15   12   13    5 |    14   27   16   15   29   13   24   16   17   21    15
   3  |    7   10   13    8   17    5    7    7    9   15    3 |    15   19   21   18   17   17   18   18   19   19    17
   4E |   17   21   16   14   23    5   19   36   17   29    8 |   123  134  128  125  140  128  138  129  125  137   127
   5  |    8   25   17   13   26    4   26   13   10   21    6 |    12   28   20   16   34   13   25   14   21   18    13
   6  |    5   12   12    7   17    4    8    8    9   11    3 |    17   20   23   17   17   18   20   21   19   17    18
   7E |    9   26   10   12   39    4   20   11    9   10    5 |    13   30   21   20   35   18   27   18   20   19    19
  X8E |   14   32    8   21   40    7  ---   10   12  ---    7 |    26   48   31   34   51   32  ---   29   34  ---    29
   9E |   18   21   15   15   17    9   21   33   22   22    8 |    71   76   75   75   74   74   74   82   75   70    73
  10  |    9   13   14   15   13    5   13    7    8   19    4 |    15   21   20   19   27   16   21   18   23   22    17
  11  |    7   11    8   12   23    4   11    8    8   11    3 |    13   19   14   13   31   11   16   16   14   17    12
  12  |    8   18    9   13   27    6   20   10    5   21    4 |    12   24   18   21   27   16   25   16   18   18    15
  13  |    8   21   12   14   33    4   25   10    9   16    5 |    13   30   20   18   42   16   29   14   18   17    15
  14  |    5   13    8   14   26    3   17    7   10   11    3 |    17   27   23   23   33   18   25   16   22   16    19
  15  |    8   23   11   10   23    4   21   10    9   16    5 |    15   25   24   18   29   15   24   16   21   20    18
  16  |    7   19   11   12   28    5   20    8    8   29    5 |    15   26   16   20   26   16   26   17   16   19    16
  17  |    9   19    9   15   25    4   19   12   11   21    5 |     8   31   19   16   37   15   28   13   15   13    13
  18  |    7   20   10   13   31    4   21    7    8   15    4 |    13   31   20   17   43   15   30   13   20   18    17
  19  |    8   18   12    9   22    5   18    8    9   23    4 |    13   26   15   10   31   14   25   14   17   17    13
  20  |    5   21   13   14   26    6   24    8    9   12    4 |    14   29   21   17   39   16   28   13   16   15    15
  21E |    6   15    8    9   66    5   16    5    8   10    3 |    16   22   18   20   50   17   23   14   24   20    18
  22  |    5   18    9   14   26    3   22   10    8   15    4 |    13   31   18   18   40   14   26   12   19   16    16
  23  |    8   27   13   19   28    3   27    9   10   15    5 |    13   32   22   20   34   16   30   12   18   14    16
 X24E |   22   23   23   25  ---   13  ---   34   31  ---   12 |    32   36   48   35  ---   32  ---   30   40  ---    31
  26  |    7   13    5   12   18    3   11   13   10   16    4 |    15   26   19   15   26   16   25   18   17   15    17
  27E |   11   19   14   12   18    5   19   10   11   19    5 |    11   21   17   17   24   12   23   15   17   14    13
  28  |    7   19   12   13   30    4   20   12    7   32    5 |    23   32   31   30   35   23   29   27   24   26    25
  29  |    7   17    8   10   27    5   21    7   11   27    5 |    15   30   19   12   38   17   29   13   18   15    15
  30  |    6    9    5   12   19    5   11    7    6    9    3 |    19   27   23   28   27   21   23   23   19   17    21
  31E |    5   20   12   21   48    6   19   11   13   11    5 |    12   24   17   21   39   15   23   14   20   19    15
  32  |    9   18   10   14   14    4   17   10    8   12    4 |    23   31   26   30   35   27   29   26   25   27    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19   11   13   28    5   19   13   10   18      |T   20   32   26   25   38   23   30   23   26   24    23
 WRMS |    7   19   11   13   26    5   19    9    9   18      |NE  14   26   20   19   31   17   25   16   19   17    16
 MEDI |    8   19   11   13   26    5   19   10    9   15      |MD  15   27   20   19   34   16   25   16   19   18    17

Table 3.1555.3   GPS week: 1555   Day: 3   MJD: 55132.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   19  ---  ---   27  ---   24  ---   10   27  ---   12 |    16  ---  ---   40  ---   41  ---   24   38  ---    24
   2E |    7   22    9   12   24    4   22   11    6   13    4 |    18   30   24   20   35   20   28   19   21   23    20
   3  |    6    9    9   11   14    4   10    8   12   15    3 |    15   18   20   24   18   18   20   20   19   20    17
   4E |   13   15   11   12   25    7   17   17   13   23    5 |   125  131  133  128  143  130  139  127  125  137   129
   5  |    7   22    9   14   26    7   22   11    9   20    5 |    17   30   19   21   37   16   29   19   17   18    17
   6  |    4   10    7   11   15    5    8    7   11   10    3 |    18   19   21   25   19   20   20   23   21   19    19
   7E |    7   20   11   10   42    4   21   16   11   13    5 |    13   31   25   20   48   19   27   19   26   20    19
  X8E |   10   25   14   13   37    6  ---   14    8   33    6 |    43   48   50   43   55   43  ---   45   46   18    45
   9E |   17   22   14   19   17    9   22   31   23   28    8 |   112  113  111  109  120  112  115  105  112  112   108
  10  |    4   10    6    8   13    5   10    7    6   20    3 |    12   16   17   13   20   13   14   14   14   18    12
  11  |    6   11    8   10   26    4   14    8    7   11    3 |    11   18   16   15   33   13   18   15   12   17    11
  12  |    6   16    9   10   21    6   21   11    8   22    4 |    18   25   23   23   28   19   27   21   22   22    20
  13  |    6   21   10   14   30    4   22    9   10   17    4 |    16   30   23   21   43   20   29   17   21   18    18
  14  |    5   14    9   12   26    4   22    9   11   13    4 |    16   27   24   21   31   17   27   16   20   15    18
  15  |    6   23    8   10   27    6   26   10   12   17    5 |    16   27   21   19   29   16   26   16   16   21    15
  16  |    5   21   10   11   26    4   22    7   10   28    5 |    16   25   22   21   28   16   26   19   20   20    17
  17  |    8   17    9   11   34    7   19   10   11   20    4 |    14   29   26   20   40   19   31   17   23   18    17
  18  |    6   22    9   14   23    5   25    7    8   18    4 |    13   30   20   15   37   15   33   14   17   18    15
  19  |    7   17   10   10   24    4   20   11   10   23    4 |    19   28   18   16   33   18   27   20   22   19    17
  20  |    6   23   10   11   29    6   23    9    8   11    4 |    15   30   20   16   40   16   29   13   16   15    15
  21E |    5   14    8    7   54    5   17    6    6   11    3 |    17   24   21   20   51   19   23   20   19   16    17
  22  |    4   18    9   14   30    4   20   12    8   18    4 |    16   29   22   20   37   17   28   17   18   19    17
  23  |    7   26   11   19   25    3   24    8    9   16    5 |    17   33   26   25   37   20   30   17   23   19    19
 X24E |   21   21   24   27  ---   14  ---   30   46  ---   13 |    40   38   44   42  ---   38  ---   38   53  ---    37
  26  |    6   15   12    8   17    4   12   11   10   16    4 |    13   25   21   14   23   13   23   16   16   13    15
  27E |   11   19    9   17   17    6   20   11   13   20    5 |    15   23   21   23   25   16   25   18   22   15    16
  28  |    8   19   12   11   27    3   24   10    7   35    5 |    23   35   31   31   36   24   32   29   24   25    25
  29  |    6   16    8   10   28    6   18    7   13   28    4 |    13   28   19   13   38   16   29   13   16   14    13
  30  |    5   10    7   10   13    4   12    8    8   13    3 |    29   29   29   32   33   28   22   31   27   20    28
  31E |    6   24   10   17   21    6   19   11   11   12    5 |    14   34   23   21   32   18   28   15   18   22    17
  32  |    8   18    9   10   12    3   14    8    9   12    4 |    16   20   19   15   25   15   21   16   15   17    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   18    9   12   26    5   19   11   11   19      |T   24   34   30   28   40   26   33   26   28   25    25
 WRMS |    6   18    9   12   22    5   19   10    9   18      |NE  16   26   21   20   31   18   25   18   19   18    17
 MEDI |    6   18    9   11   25    5   20   10   10   17      |MD  16   29   22   21   35   18   27   19   21   19    17

Table 3.1555.4   GPS week: 1555   Day: 4   MJD: 55133.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   24  ---  ---   15  ---   28  ---   14   32  ---   13 |    20  ---  ---   31  ---   46  ---   29   44  ---    27
   2E |    8   27    7   16   24    3   21   10   10   17    5 |    37   38   33   38   34   32   39   36   31   41    32
   3  |    6   11   10   11   17    3   10    7    7   16    3 |    15   17   21   25   22   17   18   20   20   23    18
   4E |   13   22   11   12   21    4   18   12    9   18    5 |   129  132  134  128  143  130  143  127  130  137   130
   5  |    9   22    9   11   29    4   23   10    9   20    5 |    11   28   11   15   39    9   27   11   12   11     9
   6  |    5    9   10    8   18    4    9    6    6   11    3 |    19   19   26   25   24   20   21   23   23   22    21
   7E |    9   21    7   10   40    4   22   11    7   10    4 |    14   25   19   17   50   13   25   13   14   15    14
  X8E |   11   31   13   13   44    5  ---    9    8   32    6 |    35   41   34   38   59   35  ---   38   39   20    35
   9E |   23   20   18   16   18    9   20   32   23   12    8 |    96  108  107  108  108  107  107  117  105  108   106
  10  |    7   10    9    8   15    3   11    7   11   18    3 |    12   18   18   14   20   14   14   15   21   19    13
  11  |    9   13    7   10   25    2   11    9    8   10    3 |    14   21   14   14   34   10   19   17   14   16    11
  12  |    5   16    9   10   25    5   19    9    6   25    4 |    20   24   22   19   28   18   26   20   21   21    19
  13  |    7   17    6   10   30    3   19    8    6   15    4 |    15   30   18   17   41   16   29   16   15   19    15
  14  |    5   17    7   11   31    5   19   10    7   11    4 |    15   28   22   20   35   18   26   18   20   16    19
  15  |    7   24    8    9   31    4   26    9    7   17    4 |    17   28   21   18   32   16   27   19   19   20    17
  16  |    7   22   11   11   26    5   19   10    7   29    5 |    18   28   18   23   29   18   24   22   22   23    18
  17  |    7   18   12   12   39    7   18   10   12   21    5 |    13   26   17   16   36   12   29   17   14   18    12
  18  |    6   22    7   11   39    2   21    6    5   18    4 |    15   30   21   14   46   17   29   14   17   17    16
  19  |    9   20   11    9   27    4   20    8    7   23    4 |    15   29   17   16   33   16   29   18   18   15    15
  20  |    7   18    8   10   27    5   19    7    7   13    4 |    16   28   21   17   42   16   29   15   16   14    15
  21E |    6   15    8   11   55    8   12    9    9   11    3 |    22   28   24   25   52   23   25   23   27   22    22
  22  |    6   21    7   10   29    5   20   11    7   17    4 |    15   29   19   12   39   16   25   19   18   17    16
  23  |    7   22   10   12   29    3   24    7    7   18    4 |    15   29   21   19   37   16   31   16   17   17    16
 X24E |   19   23   31   22  ---   19  ---   23   28  ---   11 |    43   46   56   45  ---   41  ---   36   45  ---    41
  26  |    6   13    7    5   18    2   11   14    8   13    3 |    14   25   19   12   23   15   20   20   15   13    15
  27E |   11   19   14   12   11    6   22   16   13   16    5 |    12   23   17   20   20   16   22   21   20   16    15
  28  |    8   18    8   10   26    4   20    9    8   36    5 |    22   30   26   27   34   23   31   27   26   28    24
  29  |    8   16    9   11   28    4   18    6   10   29    5 |    17   29   22   15   35   16   29   13   15   15    15
  30  |    4   10    8    9   20    5   10    9    6    8    3 |    26   28   29   28   36   26   23   30   27   15    26
  31E |    6   20    8    7   27    4   21   12    9   14    4 |    13   26   16   12   39   12   24   14   15   18    13
  32  |    9   20    7   10   16    3   15    7    9   14    4 |    16   22   16   15   29   14   24   17   15   19    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    9   11   28    5   18   11    9   18      |T   24   33   28   27   41   25   32   27   27   26    25
 WRMS |    7   19    9   11   24    4   18    9    7   18      |NE  16   26   19   18   33   17   25   18   19   18    16
 MEDI |    7   19    8   11   27    4   19    9    8   17      |MD  16   28   21   19   35   16   26   19   20   18    16

Table 3.1555.5   GPS week: 1555   Day: 5   MJD: 55134.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   17  ---  ---   40  ---   25  ---   15   29  ---   15 |    24  ---  ---   49  ---   31  ---   24   34  ---    27
   2E |   11   28   10   11   26    3   23   10    9   13    5 |    23   36   28   20   34   26   31   23   30   27    25
   3  |    7   11    7    8   19    4   11    9   10   17    3 |    11   15   17   18   17   15   15   19   17   23    15
   4E |   10   22   13   14   22    6   18   11    9   16    5 |   130  139  139  132  145  132  143  128  131  142   134
   5  |    8   23   13   11   27    6   23    8    9   20    5 |    20   29   19   21   36   17   27   17   17   19    17
   6  |    5   13    8    7   20    4   10    7    8   13    3 |    12   17   19   18   17   16   16   19   13   21    15
   7E |    8   25    8    8   37    7   23   12    8   10    4 |    13   29   19   15   40   15   26   14   16   15    14
  X8E |   10   27    8   13   52    8  ---   11   13   32    6 |    50   48   49   44   89   44  ---   48   52   23    47
   9E |   11   18   10   18   16    7   20   20   18   18    6 |    91   95   93   91   95   92   96   94   90   93    91
  10  |    6   12    9    7   14    5    9    7   10   18    3 |    14   20   20   16   24   15   18   18   21   22    16
  11  |    9   15   10    9   29    7   17   11    7   13    4 |    12   18   17   16   35   15   26   17   14   16    11
  12  |    7   17    9   14   26    6   19    8    8   30    5 |    17   24   24   22   28   16   26   18   19   19    18
 X13  |    8  ---    9   10   30    6   22    9    7   16    4 |    14  ---   18   18   42   15   29   15   16   17    15
  14  |    5   18   10   12   26    4   23   15    8    9    4 |    18   32   30   24   38   24   32   23   25   21    23
  15  |    6   24    8   13   24    7   26   10    7   18    5 |    16   32   20   20   30   18   29   18   17   21    18
  16  |    8   22   11   12   26    6   22   16    7   30    5 |    13   28   21   18   26   15   26   22   16   21    16
  17  |    6   18    7   15   32    6   17   14   12   22    5 |    14   31   24   21   38   19   30   19   23   18    18
  18  |    7   20    8   14   24    4   21    6    7   16    4 |    18   31   25   15   42   18   31   16   21   19    19
  19  |    7   20    8   10   27    5   19    8    8   22    4 |    18   30   22   19   35   21   28   18   22   17    19
  20  |    7   26   11    9   28    5   22    7    9   14    4 |    19   33   23   19   44   20   30   17   23   17    19
  21E |    7   15    9    9   43    6   15    9    8   10    3 |    19   22   21   22   37   17   20   19   19   14    16
  22  |    5   20    8   12   27    5   22   14    6   16    4 |    17   32   27   22   41   22   29   24   24   22    22
  23  |    9   26   11   14   26    4   25    7    6   19    5 |    15   32   19   23   37   17   29   14   17   18    16
 X24E |   21   28   20   32  ---   19  ---   27   22  ---   11 |    42   51   55   43  ---   36  ---   42   36  ---    40
  26  |    6   14    8    9   14    5   10   14    6   13    3 |    14   30   26   19   30   20   26   22   17   17    19
  27E |   11   21   12   15   13    6   21   15   13   18    5 |    13   27   19   22   23   20   29   23   19   20    18
  28  |    9   18    8   13   29    8   22    8    8   37    5 |    21   34   32   28   35   23   34   28   24   31    24
  29  |    8   20   10   12   26    8   20    6   12   34    5 |    17   32   20   19   35   18   30   18   15   20    15
 X30  |    6   12    9    9   17    4  ---    9    7   11    3 |    21   26   30   22   31   22  ---   24   25   17    23
  31E |    5   21    9   11   22    7   21   13    7   12    4 |    13   29   25   16   36   18   29   18   19   20    19
  32  |    7   21   10   10   17    7   17   11    8   14    4 |    16   22   23   18   31   21   24   17   16   22    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20   10   12   25    6   20   11    9   20      |T   24   35   30   28   41   26   33   26   27   26    25
 WRMS |    7   20   10   12   23    5   20   10    7   17      |NE  16   27   22   21   32   19   26   19   19   19    18
 MEDI |    7   20    9   12   26    6   21   10    8   16      |MD  17   30   23   20   35   19   29   19   19   20    18

Table 3.1555.6   GPS week: 1555   Day: 6   MJD: 55135.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   25  ---  ---   22  ---   32  ---   22   36  ---   16 |    22  ---  ---   49  ---   57  ---   30   60  ---    35
   2E |    8   21   13   15   22    3   20   12    7   25    5 |    29   35   26   26   34   28   35   34   28   44    27
   3  |    8   10   11    5   18    4   10   12    7   20    3 |    20   20   27   25   25   21   21   29   19   28    21
   4E |   10   17   16   13   18    4   16    9   11   18    5 |   146  154  153  144  160  147  157  143  146  157   148
   5  |    9   20    8   12   30    7   23   12    8   20    5 |    20   26   19   22   33   14   27   23   19   22    17
   6  |    5   10    8    4   20    4   11   11    9   18    3 |    23   22   28   27   25   24   22   32   22   29    23
   7E |    9   21    9    9   34    5   22   14    9   10    4 |    12   26   19   17   36   14   26   20   14   19    15
  X8E |   12   21    8   14   41    4  ---   12    8   36    6 |    63   60   64   64   81   59  ---   62   63   20    63
   9E |    9   20   12   17   25    9   20   18   18   19    6 |    76   79   82   72   89   77   81   77   80   76    76
  10  |   10   13    8    9   17    4   11   12    9   19    4 |    14   21   17   16   26   13   16   19   19   19    13
  11  |    9   16   13   12   29    5   14   16    8   14    4 |    21   26   20   19   39   21   25   31   22   27    20
  12  |    9   16    8   14   26    6   21    9    5   36    5 |    22   27   25   30   28   20   27   26   23   35    23
  13  |    7   18   13   14   26    4   22   11    7   20    5 |    23   29   27   22   41   23   31   21   23   26    21
  14  |    8   17   13   14   27    4   22   22   10   11    5 |    19   29   27   23   35   20   29   23   18   19    19
  15  |    8   21   12    7   19    7   22   10   10   18    4 |    18   27   20   21   34   18   26   22   24   25    19
  16  |   10   21   14   10   28    7   24   19    8   31    6 |    22   31   27   28   30   23   29   36   24   32    24
  17  |    9   16   10   13   31    4   20   13   11   22    5 |    12   32   19   21   43   18   32   15   25   20    17
  18  |   10   18   10   14   23    4   24    9    7   17    4 |    16   28   19   18   41   17   31   19   20   18    16
  19  |    9   19   10    8   28    6   19   10    8   24    4 |    23   30   14   20   38   21   30   30   22   20    21
  20  |    8   23   16   12   24    5   23    8   11   19    5 |    19   27   24   17   40   19   28   21   22   22    17
  21E |   13   15    9   21   89    5   15   11    7   10    4 |    23   23   19   31   38   22   27   26   20   19    19
  22  |    5   19   11   11   26    5   21   16    6   16    4 |    16   28   24   21   39   16   26   20   17   20    17
  23  |    6   24   13   18   22    3   23   11    9   25    5 |    24   32   28   29   37   25   34   26   26   24    24
 X24E |   33   25   43   28  ---   15  ---   27   24  ---   13 |    40   47   54   44  ---   41  ---   49   48  ---    42
  26  |    9   14    9   11   17    4   13   18    8   14    4 |    14   28   20   16   26   16   25   23   16   13    16
  27E |   13   20   10   14   22    7   20   16   12   19    5 |    14   25   20   21   28   18   27   25   22   19    18
  28  |   10   17   11   10   26    6   20   11    8   40    5 |    28   36   35   30   43   28   32   31   31   32    28
  29  |   11   18   12   14   34    6   23    8   10   39    6 |    19   32   22   17   41   19   35   19   18   24    16
 X30  |    9   13   11   16   25    9  ---   13    6  ---    5 |    30   30   33   36   31   29  ---   38   29  ---    31
  31E |    8   20   15   15   20    5   26   14   11   15    5 |    12   24   21   17   29   14   27   17   18   18    14
  32  |    8   19   12   15   11    3   19   13    8   18    5 |    15   19   18   16   25   16   22   19   15   20    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18   12   13   29    5   20   13    9   22      |T   27   35   31   30   41   28   34   32   30   30    28
 WRMS |    9   18   11   13   31    5   19   12    7   19      |NE  20   27   23   23   34   21   27   25   23   23    20
 MEDI |    9   18   11   14   25    5   20   12    8   19      |MD  21   28   24   22   36   21   27   26   22   22    20



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 4.1555   GPS week: 1555   MJD: 55129.0-55135.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |U    8    10    22 |U    8    10    28 |U    7     7    20 |
emr | emr 2830 |    21    20    73 |U   11    14    39 |     8     9    23 |
esa | esa 2907 |     9    12    26 |U    8     9    27 |     7     7    20 |
gfz | gfz 2921 |U   22    20    42 |U   15    19    39 |    11    12    31 |
grg | grg 2770 |    10    14    29 |U   10    12    33 |     9    10    25 |
igr | igr 2922 |    13    12    37 |    10    13    32 |     8     9    21 |
igs | igs 2861 |    13    15    33 |    11    14    36 |     7     7    18 |
jpl | jpl 2632 |    17    28    37 |U   13    13    43 |U    9     9    23 |
mit | mit 3003 |U   37    55   116 |U   16    18    48 |U    8     9    22 |



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 5.1555.0   GPS week: 1555   Day: 0   MJD: 55129.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3055 |    11    13    20 |     7     9    26 |     7     5    20 |
emr | emr 2935 |    18    21    45 |    12    14    43 |     9    10    24 |
esa | esa 2976 |    12    16    24 |     6     8    27 |     7     8    22 |
gfz | gfz 3002 |    26    32    47 |    13    15    32 |    13    13    58 |
grg | grg 2784 |    12    18    21 |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 3029 |    12    15    34 |     8     7    34 |     7     9    19 |
igs | igs 2823 |    13    14    34 |    12    13    38 |     7     7    17 |
jpl | jpl 2580 |    17    27    38 |    15    14    60 |    12    10    31 |
mit | mit 3072 |    17    26    30 |    14    15    46 |     8    11    28 |

Table 5.1555.1   GPS week: 1555   Day: 1   MJD: 55130.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3001 |     9     8    23 |     7     8    28 |     8    10    18 |
emr | emr 2757 |    26    43    57 |    11    12    45 |    12    12    24 |
esa | esa 2976 |    10    11    22 |     7     8    28 |     8     9    20 |
gfz | gfz 2903 |    24    22    33 |    19    22    49 |    10    11    27 |
grg | grg 2688 |    12    16    24 |     8    13    34 |    10    10    24 |
igr | igr 2932 |    14    14    43 |     8    10    26 |     8     9    20 |
igs | igs 2779 |    16    22    37 |    10    13    38 |     9    10    20 |
jpl | jpl 2673 |    21    35    44 |    10     9    31 |    10     9    22 |
mit | mit 3072 |     9     7    23 |    14    15    57 |     7     9    17 |

Table 5.1555.2   GPS week: 1555   Day: 2   MJD: 55131.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2959 |     7     9    21 |    10    10    27 |     7     6    24 |
emr | emr 2844 |    31    11    76 |    12    18    37 |     8     9    25 |
esa | esa 2880 |     8    10    28 |    10    10    24 |     7     6    22 |
gfz | gfz 2898 |    28    19    49 |    15    19    40 |    10     9    26 |
grg | grg 2784 |    12    14    24 |    10    14    29 |     8     8    30 |
igr | igr 2963 |    25    12    60 |    10    16    29 |     7     6    22 |
igs | igs 2968 |    22    13    60 |    12    19    40 |     6     5    19 |
jpl | jpl 2675 |    27    49    40 |    12    19    45 |     8     8    21 |
mit | mit 2976 |   192   303   649 |    17    21    55 |     7     8    22 |

Table 5.1555.3   GPS week: 1555   Day: 3   MJD: 55132.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2950 |     9     5    25 |    11    11    40 |     7     8    17 |
emr | emr 2849 |    18    13    63 |    12    13    43 |     8     8    14 |
esa | esa 2880 |    10     8    25 |    11    11    41 |     8     9    14 |
gfz | gfz 2909 |    41    31    80 |    16    21    38 |    14    19    29 |
grg | grg 2784 |     9    12    32 |    12    11    40 |    11    13    20 |
igr | igr 2750 |    11    10    44 |    12    18    45 |    13    20    25 |
igs | igs 2865 |    13    13    27 |    12    12    37 |     8     8    16 |
jpl | jpl 2673 |    11     9    32 |    16    16    40 |     8     9    16 |
mit | mit 2976 |    14     6    42 |    18    17    45 |     9    10    20 |

Table 5.1555.4   GPS week: 1555   Day: 4   MJD: 55133.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2940 |     8    13    25 |     6     8    19 |     6     8    19 |
emr | emr 2842 |    17    19    63 |    11    12    28 |     7     6    23 |
esa | esa 2879 |     9    14    28 |     6     8    19 |     6     7    18 |
gfz | gfz 2909 |    14    16    28 |    12    19    32 |     8    11    22 |
grg | grg 2784 |    10    12    38 |     9    10    30 |     7     8    25 |
igr | igr 2905 |     8    11    24 |    10    10    23 |     5     6    18 |
igs | igs 2832 |    12    20    29 |    12    13    27 |     5     7    18 |
jpl | jpl 2672 |    13    23    44 |    16    10    32 |     7     8    20 |
mit | mit 2976 |    11    18    27 |    16    18    38 |     7    10    19 |

Table 5.1555.5   GPS week: 1555   Day: 5   MJD: 55134.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |     8    13    21 |     7     8    21 |     6     5    18 |
emr | emr 2744 |    25    18   116 |    10    11    47 |     8     8    26 |
esa | esa 2880 |     9    12    30 |     7     9    24 |     7     6    17 |
gfz | gfz 2909 |    13    11    34 |    16    13    50 |    12    12    27 |
grg | grg 2784 |     9    14    33 |     8    10    34 |     7     9    21 |
igr | igr 2963 |    10    12    24 |     9    15    33 |     7     6    17 |
igs | igs 2852 |    10    11    24 |    10    12    42 |     6     6    18 |
jpl | jpl 2578 |    11    16    36 |    14    13    52 |     8     7    20 |
mit | mit 2976 |     9     7    18 |    14    16    55 |     6     7    22 |

Table 5.1555.6   GPS week: 1555   Day: 6   MJD: 55135.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2954 |     8    10    22 |     8    13    32 |     8     6    26 |
emr | emr 2839 |    16    17    88 |    11    15    28 |     8     9    24 |
esa | esa 2880 |     7    12    23 |     9    12    26 |     8     7    26 |
gfz | gfz 2919 |     9    10    24 |    12    25    35 |    10    13    27 |
grg | grg 2784 |     9    13    32 |    10    13    29 |     9    12    27 |
igr | igr 2918 |    10    12    28 |    10    18    31 |     8     7    23 |
igs | igs 2912 |     8    14    23 |    11    16    32 |     6     7    21 |
jpl | jpl 2579 |    21    35    24 |    11    10    46 |     9     9    28 |
mit | mit 2976 |     9    17    20 |    21    22    39 |    11     9    27 |


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    : 21-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 6.1555   GPS week: 1555   MJD: 55129.500-55135.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       0      22      20    -135     -5 |       5     12
            |      16      30     107     109      7 |       1
emr   uuuuu |      -8      14      27    -141     -1 |      77     78
            |      18      31     130      68      9 |       2
esa   uuuuu |       8       7     -44     163     -4 |      18     22
            |      36      19      91      85     12 |       3
gfz   uuuuu |      30       9      50     -56      0 |      -8     14
            |      19      15      65      43      3 |       2
grg   --xxx |      --      --     130    -170      1 |       4     26
            |      --      --     100      87     16 |       3
igr   xxxxx |      12      73      -8     -62     -7 |       0     12
            |      20      31      56      70      8 |       3
irf   xxxxx |       4      10      36     -11      2 |       0     11
            |      16       6      30      20      3 |       1
jpl   uuuuu |     -19      21     -34     -27     -6 |      32     35
            |      49      20     119      64     12 |       3
mit   uuuuu |     -13      -1      30     158      5 |      15     19
            |      22      13      62      68      5 |       2
ngs   uuuuu |     -27      14       4    -148      1 |      -1     11
            |      36      30      93     114      3 |       1
sio   uuuuu |      52     -96     -56     -71     -1 |      40     42
            |      25       9      64      91      4 |       1


Table 7.1555.0   GPS week: 1555   Day: 0   MJD: 55129.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       8     -26    -154    -336     -1 |       8     15
emr   uuuuu |      15     -46     110    -209      9 |      75     77
esa   uuuuu |     -10      31      -1     141      5 |      22     28
gfz   uuuuu |      36      -4     -16     -65     -5 |      -5     15
grg   --xxx |      --      --     133    -206    -30 |       9     32
igr   xxxxx |      46      66      50      83     -2 |       3     13
irf   xxxxx |      -3      12       3     -49      2 |       0     12
jpl   uuuuu |      -9      15     -22       7     12 |      31     35
mit   uuuuu |     -10      12     -47      84     -1 |      14     19
ngs   uuuuu |     -26      19      58      13      2 |       2     11
sio   uuuuu |      35     -99     -82    -189     -6 |      43     44

Table 7.1555.1   GPS week: 1555   Day: 1   MJD: 55130.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -13      53       7    -108      3 |       6     12
emr   uuuuu |     -28      16      76    -110      9 |      75     77
esa   uuuuu |     -11      15    -137       4     16 |      20     24
gfz   uuuuu |      55      21       7     -24      2 |      -8     12
grg   --xxx |      --      --     250    -157    -10 |       4     31
igr   xxxxx |      30      65     -58    -118      6 |       1     12
irf   xxxxx |       8      21      22       1      4 |      -1     10
jpl   uuuuu |     -32      20      93      45      1 |      33     37
mit   uuuuu |      -5       5      28     232      0 |      13     18
ngs   uuuuu |     -30      -8      73    -180     -3 |       0      8
sio   uuuuu |      53     -88     -27      -5     -2 |      41     42

Table 7.1555.2   GPS week: 1555   Day: 2   MJD: 55131.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      12      31      27     -70     -8 |       5     13
emr   uuuuu |      -8      17     193    -181     -4 |      75     77
esa   uuuuu |       9     -13     -13     217    -11 |      19     23
gfz   uuuuu |      46      33      41     -54      2 |     -10     15
grg   --xxx |      --      --      23     -63     15 |      -1     32
igr   xxxxx |       1      60     -50     -82     -4 |      -1     13
irf   xxxxx |      11      14      82       4      1 |      -2     12
jpl   uuuuu |     -39      17     -48     -66    -15 |      34     37
mit   uuuuu |       1      15     100     157      1 |      12     18
ngs   uuuuu |     -43      -2    -186    -162      3 |      -3     12
sio   uuuuu |      55     -89       1     -25     -1 |      39     41

Table 7.1555.3   GPS week: 1555   Day: 3   MJD: 55132.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -28      18     -67     -88     -6 |       6     12
emr   uuuuu |      -9      12      20    -143      2 |      78     79
esa   uuuuu |      52       9     -52     116    -18 |      19     23
gfz   uuuuu |      37       1     110      -1     -2 |      -8     13
grg   --xxx |      --      --     109    -160     12 |       5     29
igr   xxxxx |       9      25     -54    -123    -14 |       1     12
irf   xxxxx |       8       3      16       3      4 |       0     10
jpl   uuuuu |     -67      -9      28       8      4 |      35     38
mit   uuuuu |     -20     -20      20     255      8 |      15     19
ngs   uuuuu |     -49      60     -29    -341      2 |      -1     12
sio   uuuuu |      48    -114     -94      28      0 |      40     42

Table 7.1555.4   GPS week: 1555   Day: 4   MJD: 55133.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       1      31      45     -91      2 |       4     11
emr   uuuuu |     -33      28     -49    -145      2 |      78     79
esa   uuuuu |     -20     -16    -119     187     -3 |      16     20
gfz   uuuuu |      20      10      47     -95      3 |     -10     14
grg   --xxx |      --      --     -17    -130      2 |       0     19
igr   xxxxx |     -14      82     -38     -76    -12 |       0     12
irf   xxxxx |     -15       7      45       5      8 |       0     10
jpl   uuuuu |      38      52      76    -145    -22 |      34     37
mit   uuuuu |     -47       2      78     172     11 |      15     19
ngs   uuuuu |      30      13      -2    -110     -4 |      -2     11
sio   uuuuu |      33    -100     -10     -59      7 |      39     41

Table 7.1555.5   GPS week: 1555   Day: 5   MJD: 55134.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       3      -7     156     -22     -8 |       5     12
emr   uuuuu |       7      59    -214      -8    -14 |      80     81
esa   uuuuu |     -25      28    -108     215      1 |      15     19
gfz   uuuuu |       3       9     163    -124     -1 |      -8     13
grg   --xxx |      --      --     230    -134     10 |       4     18
igr   xxxxx |       7     128      79     -76    -16 |      -2     11
irf   xxxxx |     -13       9      68     -22     -1 |       2     11
jpl   uuuuu |      52      40    -112       7    -16 |      30     33
mit   uuuuu |     -28      -4      82     121      6 |      17     21
ngs   uuuuu |      10     -28      37    -201      1 |      -1     11
sio   uuuuu |      35     -96      -5     -44     -4 |      41     43

Table 7.1555.6   GPS week: 1555   Day: 6   MJD: 55135.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      18      53     126    -231    -17 |       4     11
emr   uuuuu |       3      13      53    -193    -13 |      77     78
esa   uuuuu |      64      -4     124     258    -16 |      14     18
gfz   uuuuu |      13     -11      -1     -32      1 |      -9     13
grg   --xxx |      --      --     181    -341      7 |       5     19
igr   xxxxx |       4      85      18     -39     -8 |      -5     12
irf   xxxxx |      33       4      17     -21     -2 |       1     11
jpl   uuuuu |     -74      10    -252     -46     -9 |      27     29
mit   uuuuu |      22     -15     -53      84      8 |      17     21
ngs   uuuuu |     -78      40      79     -54      5 |      -1     11
sio   uuuuu |     104     -90    -174    -206     -2 |      40     42



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