[IGSREPORT-18051] Wk 1558 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Dec 3 04:19:38 PST 2009


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IGS Electronic Report   03 Dec 04:20:02 PST 2009      Message Number 18051
******************************************************************************

Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1558   (Nov 15, 2009 - Nov 21, 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:

igs1558[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1558[0-6].clk  IGS GPS satellite and station clocks in SP3 format.
igs1558[0-6].cls  IGS GPS clock combination summary report.
igs15587.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15587.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  |  COD   | 9 27 27
                0  |  EMR   | KHAJ
                0  |  ESA   | 27 UNSA
                0  |  GFZ   | 7 9 21 25 27 28 29 31 ALIC AUCK BAKO BOGT CEDU CHAT
                0  |  GFZ   | DARW DAV1 GUAM GUAT HARB HYDE MBAR MCM4 MDO1 METS
                0  |  GFZ   | NICO NRIL ONSA PERT PRDS PRE1 RIOP STJO SYOG THU3
                0  |  GFZ   | TSKB YAKT YKRO
                0  |  GRG   | ONSA
                0  |  JPL   | 9 32 DGAR
                0  |  MIT   | 24 24 CHUR NYA1
                0  |  NGS   | 1
                1  |  COD   | 9 27 9 27
                1  |  ESA   | 9 27 UNSA
                1  |  GFZ   | 9 13 27 28 AREQ AUCK BAKO BRFT BRUS DAV1 GRAZ HARB
                1  |  GFZ   | HRM1 HYDE KERG LPGS MAS1 MBAR MDO1 MIZU NRIL NYAL
                1  |  GFZ   | ONSA PIMO QAQ1 REUN SFER SHAO SUTM TSKB TWTF VILL
                1  |  GFZ   | WSRT WTZR WUHN YELL YSSK
                1  |  GRG   | MCM4 ONSA
                1  |  JPL   | 9 27 32 DGAR GUAT
                1  |  MIT   | 24 24 MIZU GUAT HARB MIZU SFER
                1  |  NGS   | 1
                2  |  ALL   | 12
                2  |  COD   | 9 27 9 24 27 ALGO ALGO GUAT MCM4 NRIL
                2  |  ESA   | 9 27
                2  |  GFZ   | 7 COCO DARW FAA1 GRAZ MAS1 MDO1 NICO ONSA WAB2 YELL
                2  |  GFZ   | YKRO ZIMM
                2  |  GRG   | ONSA
                2  |  JPL   | 27 32 DGAR
                2  |  MIT   | MIZU GUAT MIZU
                2  |  NGS   | 1
                3  |  COD   | 9 24 27 GUAT
                3  |  ESA   | 4 8 UNSA
                3  |  GFZ   | 5 ALRT BAKO BJFS CHAT COCO CONZ DGAR FAIR HYDE KOUR
                3  |  GFZ   | MBAR MCM4 METS NYA1 ONSA PRDS RIOP SEY1 SFER TIXI
                3  |  GFZ   | TSKB YAKT
                3  |  GRG   | WTZR
                3  |  JPL   | 27 32 DGAR
                3  |  MIT   | GUAT
                3  |  NGS   | 1
                4  |  COD   | 9 GUAT WHIT
                4  |  EMR   | KERG
                4  |  ESA   | 9 UNSA
                4  |  GFZ   | 9 22 23 BAKO BOR1 BRFT BRUS BUE1 CHAT DARW EIL1 GLSV
                4  |  GFZ   | HOB2 HRAO HRM1 HYDE KIT3 LPGS MAL2 MBAR MIZU NICO
                4  |  GFZ   | NYA1 NYAL PRDS REUN SANT SEY1 SUTH SUTM TSKB WHIT
                4  |  GFZ   | YSSK
                4  |  GRG   | ALGO WTZR
                4  |  JPL   | 9 32 DGAR HOB2
                4  |  MIT   | 1 24 1 24 KHAJ
                5  |  ALL   | 8
                5  |  COD   | 1 9 1 9 NRIL
                5  |  EMR   | WTZR
                5  |  ESA   | 9 HOB2
                5  |  GFZ   | 5 9 22 ALRT AREQ ASPA BRFT CAS1 CHPI CONZ GLPS HOFN
                5  |  GFZ   | MAS1 MCM4 PETS PRDS REUN SANT SCH2 SYOG THU3 UNSA
                5  |  GFZ   | VILL WHIT WSRT WTZR
                5  |  GRG   | USUD
                5  |  JPL   | 9 32
                5  |  MIT   | 24 27 24 27 CEDU
                5  |  NGS   | 1
                6  |  EMR   | WTZR WTZR
                6  |  ESA   | KHAJ UNSA
                6  |  GFZ   | ALIC AREQ AUCK BRAZ CHAT EIL1 GODE GUAT HARB HYDE
                6  |  GFZ   | KIRU KOUR MDO1 NYAL PRDS RIOP VILL WHIT WSRT
                6  |  GRG   | ONSA
                6  |  JPL   | 8 9 32
                6  |  MIT   | 6 24 6 24 GUAT MIZU 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
               ----+--------+--------+-------------
                2  |  GFZ   | ~12:25 | ~ -1.68 ns

 6. The following table lists all maneuvered satellites for this week.
    The solutions from COD and ESA, which modeled the maneuver, are used
    that day for combination. An associated accuracy code of 0 (unknown) 
    is given if only one AC is left (no redundancy). For the long arc  
    evaluation the arc is split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G12 | 2009_11_17 | 2009118 

 7. 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.

 8. 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  |     .1    1.1     .7      -7     -5     -7    -.20
       EMR  |    5.1    4.5    3.1      47    -14     57     .29
       ESA  |    7.3    4.2   -3.9      69   -105     72    -.06
       GFZ  |     .4    1.2     .9      16    -17      0    -.10
       GRG  |    -.8   17.4   -1.7      64     40    147     .48
       JPL  |    2.6   10.0    8.3       3    -37    -21     .16
       MIT  |    3.3    2.2   -1.4       8      9    -39    -.19
       NGS  |    4.9   -1.3   -4.2     -23    -75     -5    -.22
       SIO  |    7.7    4.2   -2.0      74   -120     35     .15


 9. 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.

10. 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.

11. 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 1.1558.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1558.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 2.1558.[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 3.1558.[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 5.1558.0-6).

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 1558 summary.                       (Nov 15, 2009 - Nov 21, 2009)

Table 1.1558.a   GPS week: 1558   MJD: 55150.000-55156.000

         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  237|    1     1    -2    50   -45    -9  -.17   10    9 |    -220    -201     19     77
        |    0     0     0    16    17    25   .02           |     334     424
emr   91|    0     0     4   -70   -53    -8   .55   19   19 |     643     -85     20    106
        |    2     3     0    13    27    18   .04           |     318     300
esa  125|    1    -1     0   -60    43     0   .31   10   10 |    -674    -307     21    123
        |    0     1     1    13    17    17   .02           |    1394    1120
gfz  196|    0     0     0    -9   -12    12  -.13   10   10 |     259    -323     37    135
        |    1     1     1    21    34     8   .03           |     458    1317
grg  109|    0     4     7  -102  -148     4  1.06   25   22 |   -4259  -17415     70    218
        |    2     1     2    29    21    10   .05           |   11736   44876
igr  n/a|    0    -1     1    43   -50   -48   .04    5    5 |    4815    -318     22     76
        |    0     0     1    24    33    18   .02           |     574     488
jpl  124|    0    -1     2    38    32    14   .55   20   18 |    1379    -210     18     89
        |    1     1     1    14    12    39   .05           |     452     538
mit  258|    0     0    -2    -5  -112    -9  -.28   11   11 |  -15294    -888     23    118
        |    1     0     0    22    16     8   .04           |     659     617
ngs  211|   -1     0     0    81    76    -5  -.19   11    9 | -239801   39429   2459  15537
        |    1     0     1    20    18    27   .02           |  288449  347569
sio  263|    0     2     5  -126   172    16  -.12   21   18 |     ---     ---    ---    ---
        |    0     0     0    23    22    11   .02           |     ---     ---


Table 1.1558.b   GPS week : 1558   MJD: 55150.000-55156.000   

         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  |   15    9   17   16   11   12   11 |
   2  |    5    6    5    5    5    5    5 |
   3  |    5    6    6    6    6    6    6 |
   4  |    5    5    4    4    4    5    4 |
   5  |    5    5    4    5    6    5    6 |
   6  |    4    4    4    4    4    4    4 |
   7  |    4    5    4    4    5    5    4 |
   8  |    0    0    0   19   17   15    8 |
   9  |    5    7    6    6    6    6    6 |
  10  |    5    5    4    4    5    5    5 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    8    6    6    6    5 |
  13  |    4    5    4    4    4    5    5 |
  14  |    5    5    5    5    5    5    4 |
  15  |    5    6    5    5    6    6    6 |
  16  |    7    7    6    6    6    6    6 |
  17  |    5    5    5    5    5    5    5 |
  18  |    5    5    5    5    5    5    5 |
  19  |    4    4    4    5    5    5    5 |
  20  |    5    5    5    5    5    6    5 |
  21  |    4    4    4    4    4    4    4 |
  22  |    5    4    5    4    4    4    4 |
  23  |    6    6    5    5    6    6    5 |
  24  |   10   10   13   11   12   13   13 |
  25  |   10   10    9    8    7    6    6 |
  26  |    5    5    5    5    5    5    5 |
  27  |    6    7    7    6    6    6    6 |
  28  |    6    5    5    6    6    5    6 |
  29  |    5    6    5    5    5    5    5 |
  30  |    4    4    4    4    4    4    4 |
  31  |    5    6    6    6    5    5    5 |
  32  |    7    5    5    5    6    6    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 2.1558.0   GPS week: 1558   Day: 0   MJD: 55150.000                            

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  237|    0     1    -1    27   -23   -18  -.18    9    8 |      53    -788     23     92
        |                      7   -36                       |
emr   91|    1     0     4   -68   -57    -5   .51   18   18 |     701    -474     20    108
        |                    -40     8                       |
esa  125|    1     0     0   -36    52    -3   .29    9    8 |   -1341   -1180     22    126
        |                    -69    20                       |
gfz  196|    2     0     0    20   -42    15  -.14   12   12 |     168     551     38    144
        |                    -25    13                       |
grg  109|    0     3     9  -133  -145     0  1.04   23   21 |     736    -717     66    202
        |                     22    74                       |
igr  n/a|    0     0     0    78   -28   -42   .01    5    4 |    5880    -664     23     70
        |                   -122   -14                       |
jpl  124|   -1    -3     2    33    40    49   .58   19   18 |    2261    -786     19     80
        |                    -30   -11                       |
mit  258|   -2     1    -3   -18   -99    -9  -.30   11   10 |  -15035   -1632     26    139
        |                      7    57                       |
ngs  211|    0     0     1    89    81   -25  -.22   14   10 | -546745  313061   1993   3818
        |                    -59   -64                       |
sio  263|    0     3     5  -142   199    16  -.14   24   16 |     ---     ---    ---    ---
        |                     30  -124                       |

Table 2.1558.1   GPS week: 1558   Day: 1   MJD: 55151.000                            

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  237|    2     1    -2    36   -74   -23  -.16   10    9 |      39    -312     17     69
        |                    -17    16                       |
emr   91|    0    -3     4   -66   -51    -8   .62   19   19 |      96     -70     18    101
        |                    -35    -1                       |
esa  125|    0     0     0   -80    35    23   .32   13   12 |     131      81     19    125
        |                    -51   -38                       |
gfz  196|    1     1    -1     0    47    10  -.14   11   11 |     714    -575     33    130
        |                    -32    15                       |
grg  109|   -1     5     4   -69  -149    21  1.10   23   23 |     226    -278     66    207
        |                    -55    59                       |
igr  n/a|    0     0     0    18   -82   -80   .05    5    5 |    5163    -828     23     75
        |                    -73   -16                       |
jpl  124|    0    -1     4    18    29    80   .64   19   18 |    1406    -768     18    100
        |                    -32     1                       |
mit  258|   -1     0    -3   -13   -87    -5  -.24   11   10 |  -16109    -116     19    105
        |                      6    58                       |
ngs  211|    0    -1     0   100    54   -37  -.16   10    8 | -546417  308867   2172   3812
        |                     -2  -107                       |
sio  263|    0     1     5  -124   186    25  -.10   20   17 |     ---     ---    ---    ---
        |                     14   -99                       |

Table 2.1558.2   GPS week: 1558   Day: 2   MJD: 55152.000                            

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  237|    1     0    -2    42   -30   -27  -.18   10    9 |    -470     127     17     72
        |                      3   -64                       |
emr   91|    2    -3     4   -50  -104    -6   .55   19   19 |     544    -312     18    104
        |                    -44    36                       |
esa  125|    1    -2     0   -67    60    15   .30   10   10 |   -3359    1047     20    129
        |                    -28   -27                       |
gfz  196|    0     2     1   -26    -9     4  -.10   11   11 |     609   -2944     35    131
        |                    -16    -1                       |
grg  109|    0     3     5  -100  -120    13  1.08   24   24 |  -30867 -119182     81    237
        |                    -32    -7                       |
igr  n/a|    0     0     0    63    13   -68   .07    5    5 |    4857    -957     22     81
        |                    -59   -51                       |
jpl  124|    1    -2     1    28    47   -31   .52   19   18 |    1218    -759     20     89
        |                    -13   -25                       |
mit  258|   -2     0    -2    -7  -136     0  -.27   10    9 |  -16080    -833     20    114
        |                     -1    57                       |
ngs  211|   -1    -1    -2   100   105     7  -.16   11    9 |   10477    8411   2085   3632
        |                    -28   -36                       |
sio  263|   -1     1     5  -135   134    32  -.10   20   18 |     ---     ---    ---    ---
        |                      1   -95                       |

Table 2.1558.3   GPS week: 1558   Day: 3   MJD: 55153.000                            

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  237|    1     1    -2    53   -38   -10  -.16   11   10 |    -239      53     26     89
        |                      4   -12                       |
emr   91|    0    -4     4   -69   -27   -19   .57   20   20 |     917     412     17     99
        |                     -4   -30                       |
esa  125|    1    -2    -1   -67     8     5   .35   10   10 |     205     526     25    130
        |                    -55     8                       |
gfz  196|    1     0     1   -34     9     0  -.09    8    8 |     137     286     42    138
        |                    -34    -8                       |
grg  109|    1     4     9   -98  -139    -4  1.14   27   24 |     250   -1069     68    214
        |                    -13     2                       |
igr  n/a|    0     0     1    54   -46   -44   .03    5    5 |    4542     169     24     88
        |                    -78   -38                       |
jpl  124|    2    -2     0    43    43     8   .52   20   18 |    1076     327     20     90
        |                     -6   -11                       |
mit  258|   -1     1    -3     5  -122    -8  -.23   10    9 |  -14745   -1783     20    120
        |                     -5    51                       |
ngs  211|   -2     0     0    80    83     3  -.19   11    8 |    8625    9086   2134   3724
        |                     53   -64                       |
sio  263|    0     3     6  -109   165     8  -.11   20   18 |     ---     ---    ---    ---
        |                     -5   -95                       |

Table 2.1558.4   GPS week: 1558   Day: 4   MJD: 55154.000                            

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  237|    1     1    -2    66   -40   -16  -.16   10   10 |     235    -695     16     88
        |                    -35   -31                       |
emr   91|    0     0     4   -63   -32    28   .57   18   18 |     940    -200     20    131
        |                    -22   -18                       |
esa  125|    1    -3    -2   -50    54     8   .31    9    9 |     343   -1969     21    126
        |                    -56     9                       |
gfz  196|    0     0     0     7   -23    10  -.17    9    9 |     685    -426     33    132
        |                    -66     9                       |
grg  109|    1     4     5   -79  -133     7  1.01   25   22 |     -59      24     66    228
        |                    -18     1                       |
igr  n/a|    0     0     2    47   -78   -32   .02    5    5 |    4506    -198     24     75
        |                    -49   -20                       |
jpl  124|    0    -2     3    52    34    10   .54   19   17 |    1178     -43     19     97
        |                    -54     3                       |
mit  258|    0     1    -2   -30  -115    -9  -.30   12   12 |  -15377    -893     24    112
        |                      2    43                       |
ngs  211|   -2     0     1    64    51   -35  -.22   12   11 | -547280  300535   4495  85762
        |                    104   -52                       |
sio  263|    0     3     5  -150   166    22  -.14   19   16 |     ---     ---    ---    ---
        |                      0  -104                       |

Table 2.1558.5   GPS week: 1558   Day: 5   MJD: 55155.000                            

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  237|    1     0    -2    53   -51    46  -.18   11   11 |    -572     354     14     62
        |                      5    -9                       |
emr   91|    3     4     5   -88   -67   -19   .53   19   19 |     397    -145     21    112
        |                     25    19                       |
esa  125|    1    -2     0   -60    48   -17   .30    8    8 |   -1173     488     20    119
        |                    -67    -6                       |
gfz  196|   -1     0     0     0   -55    18  -.11   11   11 |      79    -362     34    120
        |                    -34    11                       |
grg  109|    3     3     9   -85  -169    -3  1.07   24   20 |     134    -556     77    234
        |                     29    30                       |
igr  n/a|    0    -1     1     9   -62   -27   .01    5    5 |    4082     132     20     75
        |                    -59   -35                       |
jpl  124|    0     0     1    35    17   -26   .50   21   19 |     896     258     18     93
        |                     -8  -101                       |
mit  258|    1     1    -3    39  -106   -25  -.30   13   12 |  -15390    -474     20    123
        |                    -10    35                       |
ngs  211|   -2     0     0    44    72    18  -.18   11    9 |  -66800 -672132   1958   3897
        |                     67   -62                       |
sio  263|    0     2     4   -82   193     4  -.12   21   21 |     ---     ---    ---    ---
        |                     -9  -110                       |

Table 2.1558.6   GPS week: 1558   Day: 6   MJD: 55156.000                            

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  237|    0     1    -1    74   -57   -13  -.13   10    9 |    -590    -152     24     70
        |                     -8   -50                       |
emr   91|   -3     1     2   -88   -31   -27   .51   18   18 |     909     188     26     92
        |                     21   -26                       |
esa  125|    2    -1     0   -58    45   -25   .31    9    9 |     473   -1147     23    106
        |                    -49    14                       |
gfz  196|    0     0     0   -32   -11    25  -.16    9    9 |    -574    1203     45    150
        |                    -40   -18                       |
grg  109|   -3     2     8  -148  -183    -4  1.01   26   23 |    -238    -128     71    204
        |                     89    66                       |
igr  n/a|    0    -2     3    36   -67   -41   .07    5    5 |    4681     117     24     74
        |                    -62   -16                       |
jpl  124|    0     0     2    60    15    13   .56   19   18 |    1620     298     18     80
        |                    -16   -56                       |
mit  258|    0     0    -2   -16  -120    -6  -.32   13   12 |  -14323    -485     32    117
        |                      3    40                       |
ngs  211|    0    -1     0    90    85    32  -.17   11    8 |    9528    8175   2379   4120
        |                    -48   -75                       |
sio  263|    0     2     4  -139   159     3  -.13   21   18 |     ---     ---    ---    ---
        |                      8   -91                       |

       
       
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 3.1558.0   GPS week: 1558   Day: 0   MJD: 55150.000                            

        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  |   14  ---  ---  ---  ---   29  ---   15   34  ---   14 |    19  ---  ---  ---  ---   41  ---   24   49  ---    24
   2  |    7   18    9   15   21    3   21   10   15   21    5 |    18   28   22   11   39   18   30   18   19   28    17
   3  |    8    9    6    7   15    4   12   10   13   47    5 |    20   24   27   19   29   21   29   19   23   44    21
   4  |   10   15    9   12   26    3   12   14   14   22    4 |     8   17   12    9   23    8   16   15   14   16     7
   5  |    9   23    8   12   25    4   21   10   11   17    5 |    21   30   21   24   44   20   29   24   21   21    20
   6  |    6    9    6   10   15    4   11    8   15   21    3 |    24   25   28   20   28   21   29   23   24   25    23
   7E |    7   16    9   10   17    4   17   11   12   13    4 |    14   23   16   15   25   13   21   20   16   19    13
  X8E |    3  ---  ---  ---  ---  209  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---  158  ---  ---  ---  ---    39
   9E |   12   18    9   10   23    6   19   11   21   16    5 |    33   34   36   29   36   31   33   30   43   29    31
  10  |   10   15    7   11   15    5   14   13   13   26    5 |    11   22   13   15   29   11   25   19   14   19    12
  11  |    7   13    7   13   28    5   16    5    9   10    3 |    14   25   17   15   40   13   26   14   15   12    13
  12  |    8   21   11   13   24    4   24   10    9   24    5 |     8   23   12   15   19    9   23   12   10   13    10
  13  |    6   19    9   11   26    3   19   10    9   15    4 |    17   30   23   23   39   21   26   19   23   17    18
  14  |    9   20   11   13   27    3   24    8   11   13    5 |    15   29   24   26   32   19   27   22   17   21    20
  15  |    9   22    8   14   24    5   23    9   10   27    5 |    14   27   22   22   36   18   27   20   13   24    17
  16  |   10   27   10   12   27    4   26   20   15   27    6 |    16   34   20   16   37   16   33   23   17   23    16
  17  |   10   13    4   17   30    3   13    8   14   20    4 |    29   31   28   32   35   28   30   29   30   33    28
  18  |    8   22    9   16   20    5   22    9   13   12    5 |    20   30   17   17   39   18   35   20   24   22    20
  19  |    6   12    6   10   22    5   12    8   14   30    4 |    29   33   32   29   38   29   34   27   29   30    29
  20  |    7   16    7   12   21    6   22   14   12   19    5 |    23   29   23   27   36   25   29   28   26   27    23
  21  |   12   15    8   10   32    6   16   10    8    8    4 |    22   24   16   18   38   17   26   19   21   17    19
  22  |    7   20    9   12   25    6   19   10   12   11    4 |    17   30   21   17   41   18   28   22   19   22    18
  23  |    8   22   11   16   24    4   24   10   12   23    5 |    14   31   23   25   32   17   28   13   19   15    16
 X24  |   17   25   20  ---  ---   12  ---   23   17  ---   10 |    17   29    6  ---  ---   17  ---   27   24  ---    18
 X25E |   17   21   15   20  ---    7   19   41   25  ---   10 |    27   33   27   24  ---   25   37   46   34  ---    26
  26  |    8   13    7   11   17    4   14   13   12   26    4 |    41   38   41   41   39   39   42   41   44   43    41
  27E |   12   20    9    9   22    5   19    9   28   17    5 |    75   80   74   72   82   76   79   75   80   80    75
  28  |   11   21   12   17   27    5   21   12   12   26    5 |    20   29   30   32   38   22   29   27   25   22    23
  29  |    8   13   10   10   20    6   17   12   11   32    5 |    35   35   33   32   34   32   34   33   35   25    32
  30  |    7   13    9   12   12    3   12    8    8   17    3 |    24   21   26   22   23   22   24   27   23   19    22
  31E |    6   16    9   14   22    5   23    9   14   13    4 |    11   26   18   18   27    9   23   12   12   11    13
  32  |    9   18   10   11   15    6   22   15   14   58    7 |    69   74   72   70   73   71   76   74   70   36    67
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18    9   12   23    5   19   11   14   24      |T   23   31   26   25   36   28   32   26   26   25    24
 WRMS |    8   18    8   12   21    4   18   10   10   16      |NE  21   29   24   23   35   22   30   24   25   23    22
 MEDI |    8   18    9   12   22    5   19   10   13   20      |MD  20   29   23   22   36   20   29   23   23   22    20

Table 3.1558.1   GPS week: 1558   Day: 1   MJD: 55151.000                            

        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  |   13  ---  ---  ---  ---   15  ---   14    7  ---    8 |    14  ---  ---  ---  ---   24  ---   21   22  ---    16
   2  |    7   22   15   14   25    4   24    9    9   21    5 |    14   28   21   11   33   16   28   15   20   24    14
   3  |    9   11   10    8   12    5   11    8    8   45    5 |    15   17   17   15   24   16   21   15   17   41    13
   4  |    9   13   12   12   25    5    9   11   11   18    4 |    13   21   17    9   23   15   18   20   19   18    13
   5  |    8   19    8   11   24    4   21    8    5   16    4 |    14   26   21   17   42   15   23   16   17   14    14
   6  |    7   12   10   10   13    6    9    7    6   19    3 |    16   19   18   16   24   16   21   16   18   16    14
   7E |    9   17   14   13   19    6   19   11    9   15    4 |    14   21   14   15   30   13   23   14   20   14    12
  X8E |    6  ---  ---  ---  ---  369  ---  ---  ---  ---    0 |    43  ---  ---  ---  ---  330  ---  ---  ---  ---    45
   9E |   16   25    9   18   18    5   21   11   21   13    6 |    20   30   23   25   26   23   22   19   37   17    20
  10  |   10   14   10   10   17    6   14   12    7   21    4 |    15   25   18   16   32   17   22   22   18   21    15
  11  |    8   16   10   12   27    7   15    7    8    9    4 |    12   30   21   14   39   18   25   14   21   12    14
  12  |    8   19   15   11   24    4   23    8    9   19    5 |    12   23   19   14   19   17   23   11   12   12    14
  13  |    8   20   17   12   29    5   20    9   11   11    5 |    15   29   21   17   40   18   27   15   21   12    13
  14  |    8   20   13    9   27    3   24   11   10   15    5 |    15   29   23   18   32   17   25   18   15   16    15
  15  |   12   20   12   11   25    5   25   11    9   26    5 |    14   26   21   17   34   14   25   17   18   22    13
  16  |   13   27   13   10   21    5   26   17    9   26    6 |    13   30   20   14   32   15   29   21   16   20    14
  17  |    9   16   10   15   27    6   14    8    9   17    4 |    21   22   20   18   21   20   17   16   18   18    14
  18  |    8   23   11   11   41    3   23   12    9   12    5 |    11   27   12   14   47   13   28   16   19   15    14
  19  |    9   12    8    6   20    5   13   11    8   26    4 |    16   25   17   18   28   16   23   15   21   16    16
  20  |    5   22   16    8   21    6   20   12   12   17    5 |    18   26   22   17   30   20   22   20   23   19    16
  21  |   10   14   12    8   22    4   17   10   10    9    4 |    17   22   20   19   29   19   24   20   24   19    18
  22  |    8   16    9    9   24    5   19   12    8   14    4 |    13   20   13   11   35   11   21   17   18   14    12
  23  |    8   26   20   14   25    4   25    7   11   20    6 |    16   34   27   19   36   20   30   14   24   16    16
 X24  |   18   28  ---  ---  ---   25  ---   16   10  ---   10 |    20   34  ---  ---  ---   18  ---   22   33  ---    22
 X25E |   20   20   19   20  ---    8   19   35   21  ---    9 |    21   32   25   22  ---   24   35   41   38  ---    23
  26  |    9   12   12    8   16    3   13   14   10   27    5 |    46   48   47   46   46   46   44   50   46   55    45
  27E |   16   24    9   13   25    5   22   11   25   19    6 |    62   72   67   68   75   68   69   69   76   69    67
  28  |   12   15    7   13   27    5   20   13    7   25    5 |    15   26   18   21   34   17   25   24   20   22    16
  29  |    8   18   16    9   19    8   18    9    8   33    5 |    21   27   21   22   22   22   25   24   28   18    21
  30  |    8   14   12    8   17    4   15    7    8   12    3 |    19   23   24   22   21   22   19   22   24   19    19
  31E |   14   26   20   13   16    7   22   12    8   10    6 |    21   29   21   13   28   15   21   13   18   12    13
  32  |   10   20   17    8   15    6   18   13    8   14    5 |    25   31   21   24   33   25   33   27   28   22    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19   13   11   23    5   19   11   10   20      |T   19   28   22   19   32   30   26   21   24   21    19
 WRMS |    9   19   12   11   23    5   18   10    8   17      |NE  17   26   20   17   31   18   25   19   21   20    16
 MEDI |    9   19   12   11   22    5   19   11    9   17      |MD  15   26   21   17   32   17   24   18   20   18    15

Table 3.1558.2   GPS week: 1558   Day: 2   MJD: 55152.000                            

        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  |   13  ---  ---  ---  ---   27  ---   24   29  ---   16 |    17  ---  ---  ---  ---   34  ---   22   38  ---    19
   2  |    7   20    9   10   27    5   23    9   11   21    4 |    14   29   20   16   38   16   30   15   22   26    17
   3  |    8   10    8    9   11    6   13    9    8   47    5 |    18   20   24   17   24   16   24   16   22   40    17
   4  |    9   14   10    9   29    4   10    8    6   17    3 |     9   16   13   13   29    9   13   14   13   13    10
   5  |    8   22    6   10   20    6   20    9    6   15    4 |    16   30   21   22   42   15   28   20   14   18    17
   6  |    7   10    7    9   12    5   13    6    8   16    3 |    19   19   22   17   24   17   23   18   22   16    18
   7E |    7   21    9   10   16    5   18    9    9   11    4 |     9   23   15   11   24   11   21   16   13   16    10
  X8E |    4  ---  ---  ---   39   91  ---  ---  ---  ---    0 |    22  ---  ---  ---   34  107  ---  ---  ---  ---    20
   9E |   12   25   12   11   27    7   20   12   23   14    6 |    19   28   20   19   24   20   22   18   34   19    18
  10  |    9   17    8   11   14    6   14   11    7   12    4 |    12   24   14   21   26   11   21   17   16   13    14
  11  |    7   15    9   11   29    5   17    6    8    8    3 |    13   29   19   19   42   14   30   13   14   18    15
 X12  |    6  ---    9  ---  ---   23  ---  ---  ---  ---    8 |    24  ---   13  ---  ---   44  ---  ---  ---  ---    24
  13  |    8   20    9    9   26    6   19   10    9   11    4 |    20   31   21   22   41   17   29   15   19   13    16
  14  |   10   21    9   12   26    4   25   11    7   14    4 |    11   26   18   20   31   14   26   16   14   13    15
  15  |    7   20    8   13   21    6   22    8   12   27    5 |    15   27   23   24   36   18   25   18   18   22    16
  16  |   10   28   13   11   25    5   27   16    8   25    6 |    14   32   20   14   32   14   29   18   17   17    14
  17  |   11   17   11   14   25    5   17    8    7   16    4 |    22   26   20   26   28   20   26   21   22   24    20
  18  |    6   23    9   17   34    6   23   11    8   14    5 |    15   29   16   19   46   18   30   16   22   19    17
  19  |    8   12    8    8   19    4   14   12    8   24    4 |    20   24   23   18   28   20   26   21   23   18    20
  20  |    8   19   13    7   22    6   21   11   10   17    4 |    17   26   24   20   31   18   26   19   21   21    17
  21  |    9   20    9   11   34    5   18    8    6   10    4 |    14   28   15   23   35   15   25   18   17   15    17
  22  |    7   15   10   12   29    7   20   10    8   14    4 |    14   21   16   14   39   15   25   16   20   16    15
  23  |    9   26   12   10   25    5   26    7   11   19    5 |    19   35   26   20   38   17   33   13   17   18    16
 X24  |   22   28  ---  ---  ---   10  ---   16   26  ---   13 |    12   32  ---  ---  ---   21  ---   19   35  ---    16
 X25E |   18   22   13   17  ---    7   19   32   19  ---    8 |    26   32   27   21  ---   21   36   35   31  ---    22
  26  |    8   14   10   10   17    4   15   12    8   26    4 |    22   26   25   28   28   24   24   25   25   34    23
  27E |   15   23   10   12   27    6   22   11   26   20    6 |    48   57   51   54   62   49   56   49   57   49    49
  28  |   10   18    7   12   26    5   25   14    9   23    5 |    18   26   19   25   34   17   27   24   17   21    18
  29  |    8   15    9    9   20    6   15    6    8   33    4 |    27   27   24   28   27   22   25   24   24   18    24
  30  |    8   12   10    9   16    3   13    7   11   11    3 |    21   17   21   20   21   19   21   21   21   17    18
  31E |   20   20   13   13   21    6   21   10   12    8    5 |    23   25   20   18   36   16   23   16   22   21    16
  32  |   10   23   13    9   19    7   20   15    7   18    5 |    25   34   27   27   35   25   36   30   25   30    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19   10   11   24    5   19   10   11   20      |T   18   27   21   21   33   22   27   20   22   20    18
 WRMS |    9   19   10   11   24    5   18    9    9   18      |NE  17   26   19   20   32   19   26   18   21   20    17
 MEDI |    8   20    9   10   25    6   19   10    8   16      |MD  18   27   20   20   32   17   26   18   21   18    17

Table 3.1558.3   GPS week: 1558   Day: 3   MJD: 55153.000                            

        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  |   12  ---  ---  ---  ---   25  ---   24   29  ---   16 |    19  ---  ---  ---  ---   33  ---   23   41  ---    22
   2  |    8   25   10   10   26    5   25    7    9   22    5 |    13   28   15   11   36   15   27   14   18   26    14
   3  |   13   10    8    6   14    4   14    8   12   45    5 |    17   20   19   15   23   16   22   19   22   39    16
   4  |   10   20    8   10   23    7   10    8    7   16    4 |    10   21   16   13   22   14   15   16   16   15    11
   5  |   10   26   10   10   22    5   23   12    7   18    5 |    14   30   20   19   41   15   27   22   13   22    16
   6  |   12   10    9    6   17    4   10    8   14   14    4 |    20   22   20   16   24   17   22   21   25   17    17
   7E |    7   22    9    9   13    6   21    7    9   10    4 |    19   29   23   19   29   17   26   19   29   19    19
  X8E |   29  ---   40  ---   39   22  ---   31   31  ---   19 |    16  ---   36  ---   33   61  ---   37   42  ---    26
   9E |   14   25   11   11   28    5   21   12   20   12    6 |    22   31   24   25   26   22   25   21   34   19    22
  10  |   11   14   10    7   17    6   15   11    8   10    4 |    13   25   19   17   27   13   21   18   14   16    15
  11  |   10   19   13    7   27    5   21    8   10    7    4 |    19   31   24   18   42   20   29   18   20   18    18
 X12  |   11  ---   13    9  ---    6   27    7   10  ---    5 |    15  ---   19   13  ---   15   25   13   14  ---    16
  13  |    7   19   10    9   26    6   21    8    9   12    4 |    19   31   25   23   41   19   28   17   27   13    19
  14  |   11   20   10   10   28    5   25   12   10   14    5 |    12   26   20   24   32   16   25   19   19   14    17
  15  |   12   23   10    9   23    6   23   10    8   26    5 |    17   30   24   20   38   18   26   21   16   25    17
  16  |   11   26   10    9   25    4   26   12   10   26    5 |    14   31   21   16   33   16   30   17   16   19    15
  17  |   11   15   10    8   30    4   15   12   13   17    4 |    25   26   26   27   35   24   24   26   28   30    24
  18  |    9   27    8    9   38    4   21    8    9   12    4 |    15   32   15   17   49   15   27   18   21   21    17
  19  |   11   17    8    5   21    6   15   17   11   23    5 |    23   28   26   24   32   23   30   25   24   21    22
  20  |    7   20   11    7   32    6   23    8    9   14    4 |    17   26   22   20   41   21   22   18   22   16    17
  21  |   11   19   11    6   34    4   19    8    8   10    4 |    21   31   22   21   39   20   29   23   26   22    22
  22  |    8   17   10    7   34    6   17    8    7   11    3 |    12   21   13   10   44    9   22   13   16   14    11
  23  |    9   27   13    8   26    5   28    8    9   20    5 |    17   35   27   20   37   19   30   14   20   18    17
 X24  |   14   26  ---  ---  ---   12  ---   15   24  ---   11 |    24   31  ---  ---  ---   22  ---   26   38  ---    27
 X25E |   18   20   14   15  ---    8   19   25   16  ---    7 |    25   33   25   22  ---   23   35   32   34  ---    23
  26  |   10   16    9    6   19    4   14   13    8   26    4 |    26   29   24   27   27   24   27   27   28   33    25
  27E |   14   25    9    9   30    4   22   10   24   18    6 |    75   83   74   76   85   75   81   78   81   78    76
  28  |   13   19   11   11   29    5   24   11   10   23    5 |    20   27   24   26   35   19   28   26   22   22    21
  29  |    8   15    7    6   21    7   15    6   10   33    4 |    30   30   26   27   31   25   29   26   31   20    26
  30  |    8   15   10    8   19    5   12    5   10   12    3 |    22   22   23   22   22   19   21   22   19   15    19
  31E |   20   23   13   11   60    6   25   14    8   24    6 |    29   41   29   26   57   24   31   26   27   29    25
  32  |   10   22   10    7   12    6   24   14   11   14    5 |    20   31   26   22   34   23   32   24   26   26    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   20   10    8   27    5   20   10   11   20      |T   20   30   24   21   36   22   28   23   25   23    21
 WRMS |   10   20   10    8   24    5   18    9    8   18      |NE  18   27   21   19   33   18   25   20   22   21    18
 MEDI |   11   20   10    9   26    5   21   10   10   16      |MD  19   30   23   20   34   19   27   21   22   20    19

Table 3.1558.4   GPS week: 1558   Day: 4   MJD: 55154.000                            

        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  |   12   25  ---  ---  ---   11  ---   18   21  ---   10 |    19   29  ---  ---  ---   18  ---   22   27  ---    19
   2  |    9   22    7   10   23    5   23    8   10   22    5 |    14   29   21   11   34   18   28   15   20   26    15
   3  |    9    9    9    6   13    5   10   10   11   46    5 |    18   21   24   19   26   17   22   15   26   39    17
   4  |    9   12    9    6   24    6    9   12    7   15    3 |    12   17   15   14   22   12   13   14   15   15    10
   5  |   10   24   10   15   26    5   23   14   15   16    5 |    17   28   21   25   43   18   26   22   17   20    17
   6  |    8    9   10    8   13    3    8    9   11   16    3 |    21   21   25   18   27   19   23   19   26   15    19
   7E |    9   22    7    8   15    5   19    7   11   13    4 |    18   31   24   20   29   21   26   21   26   23    19
  X8E |   26  ---   30  ---   72   20  ---   31   31  ---   17 |    21  ---   33  ---   66   48  ---   37   45  ---    24
   9E |   13   24   11    9   25    3   21   13   19   14    5 |    21   26   26   19   24   18   25   23   31   20    19
  10  |   12   14    8    8   19    6   13   15   13    9    4 |    15   21   17   17   29   13   22   16   18   15    14
  11  |    9   13    7    8   27    5   19    9   11    7    4 |    16   28   17   16   41   13   26   13   21   11    13
  12  |   10   20   10    9   25    5   26   14   15   15    5 |    13   24   20   17   26   15   28   14   14   12    15
  13  |    8   16   10    8   29    5   21    9   11   10    4 |    16   28   25   20   40   20   26   17   22   15    17
  14  |   13   20    9   10   28    6   23   13   10   14    5 |    11   27   19   22   31   14   26   19   20   14    16
  15  |   12   23   11   15   23    5   24   10   13   26    6 |    11   25   23   21   35   13   25   15   18   22    14
  16  |   10   25   11    6   27    5   23   10   12   26    5 |    14   30   21   14   33   15   31   14   19   17    15
  17  |   10   15    6   13   29    8   12   15   12   17    4 |    21   24   22   21   30   22   22   24   25   27    20
  18  |    9   23    9   10   23    4   22   11    9   11    4 |    11   26   14   14   30   14   30   13   22   17    15
  19  |    9   11    7    7   17    5   14   13   12   24    4 |    19   23   20   20   29   20   26   18   24   17    19
  20E |    8   13    9    8   22    6   20   16   10   14    4 |    30   33   35   33   39   36   31   26   34   29    28
  21  |   10   16    7    6   31    7   19   12   10   12    4 |    17   27   18   20   35   20   27   21   23   20    19
  22  |    7   18    7    8   23    4   19   10   11   10    4 |    12   21   15   13   32   12   24   13   21   15    14
  23  |   10   23   12   11   23    5   26    9   11   19    5 |    13   33   23   19   34   16   29   12   18   15    14
 X24  |   17   25  ---  ---  ---   21  ---   16   27  ---   12 |    15   32  ---  ---  ---   15  ---   14   36  ---    18
 X25E |   13   21   12   13  ---    6   19   22   15  ---    6 |    24   35   28   22  ---   27   36   31   33  ---    23
  26  |   11   13    8    7   18    4   13   13    9   26    4 |    17   21   19   18   20   16   23   19   22   26    18
  27E |   13   22   11   16   26    6   19   12   20   15    6 |    36   50   44   46   52   42   48   38   45   39    41
  28  |   12   21    9   13   27    7   24   16   14   21    5 |    15   28   19   17   32   14   27   23   23   20    15
  29  |   12   12    9    7   19    8   16   10   13   33    5 |    21   24   27   23   26   25   25   22   27   16    22
  30  |   11   11    4    7   13    5   12    8   12    9    3 |    20   17   21   16   22   17   20   18   17   14    16
  31E |    9   18   11    8   59    5   21   11   12   13    4 |    10   28   18   15   51   13   24   13   19   16    13
  32  |   12   22   12    5   14    6   24   20   13   15    5 |    16   29   23   19   29   20   33   21   23   23    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18    9    9   25    5   19   12   12   19      |T   17   26   22   19   33   19   26   19   24   19    18
 WRMS |   10   18    9    9   22    5   17   12   11   16      |NE  15   25   20   17   30   16   25   17   21   18    16
 MEDI |   10   20    9    8   23    5   19   12   12   15      |MD  16   27   21   19   31   17   26   18   22   17    17

Table 3.1558.5   GPS week: 1558   Day: 5   MJD: 55155.000                            

        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  |   16   29  ---  ---  ---   21  ---   24   16  ---   12 |    17   27  ---  ---  ---   26  ---   26   26  ---    19
   2  |    9   21    7   13   25    5   24   10    8   25    5 |    14   30   21   15   36   16   28   19   17   28    17
   3  |    9   12    6    9   13    6   13   14   16   48    6 |    14   21   20   19   26   17   23   16   18   38    15
   4  |   15   17    8    9   22    5   12   10   10   16    4 |    11   20   14   18   23   13   18   14   17   15    13
   5  |   12   24    7   10   33    6   26   13    8   15    5 |    24   35   27   27   52   24   33   29   24   28    25
   6  |    8   10    5    8   13    4   12   13   13   17    4 |    13   20   20   17   24   16   20   16   16   15    15
   7E |    9   22    8   10   16    4   19    8   11   11    4 |    10   26   21   18   26   16   24   15   15   15    13
  X8E |   25  ---   19   22   45   40  ---   26   47  ---   14 |    18  ---   20   12   41   43  ---   34   44  ---    19
   9E |   14   26    6   10   27    5   23   13   18   15    5 |    18   29   22   23   31   22   28   22   32   19    20
  10  |   12   17    9   11   14    4   17   15    9   10    4 |    14   26   19   23   29   16   26   18   20   19    16
  11  |   10   14    8   10   27    4   19   12   10   10    4 |    17   29   20   22   45   17   31   18   16   18    18
  12  |   12   21    9   11   26    5   28   17   12   18    5 |    10   24   19   15   20   17   30   16   15   15    14
  13  |    9   18   14   11   29    6   22   13   10   11    5 |    17   30   31   26   43   22   30   20   23   18    21
  14  |   11   20   10   11   23    6   28   13   10   16    5 |    10   28   24   20   31   16   27   17   17   14    17
  15  |   13   24   12   11   24    5   27   13   11   27    6 |    13   32   28   24   40   20   31   19   22   25    19
  16  |    8   25   11   10   28    5   24   13   16   26    5 |    12   30   21   16   35   15   30   15   18   16    15
  17  |   10   14    5   12   25    7   16   16   14   19    4 |    15   19   19   20   25   17   21   22   24   21    18
  18  |    8   23    8   13   19    4   25   11   10   11    5 |    15   32   20   19   38   17   30   18   18   25    20
  19  |    9   13    5    8   17    4   14   10   15   26    4 |    15   23   21   19   26   18   22   15   17   16    17
  20E |   11   19    9   20   21    6   23   15    8   17    5 |    20   26   26   27   33   23   28   23   25   24    22
  21  |   11   16    7    6   22    4   21   12   10   13    4 |    18   27   17   20   33   16   29   23   18   24    20
  22  |    6   17    7    9   20    6   18    9   12   11    4 |    12   25   19   17   33   15   20   15   15   18    17
  23  |    9   25   11   11   23    5   25    9   11   21    5 |    16   35   27   23   37   21   33   19   14   18    19
 X24  |   13   35  ---  ---  ---   15  ---   13   24  ---   12 |    19   33  ---  ---  ---   23  ---   21   28  ---    20
 X25E |   15   19    8   11  ---    5   16   19   13  ---    5 |    23   34   31   26  ---   26   38   27   30  ---    24
  26  |   10   14    5   10   14    3   16   14    8   27    4 |    25   33   29   30   31   28   31   32   28   37    29
  27E |   15   24    7   14   29    7   22   14   17   20    6 |    55   66   60   57   74   58   66   56   62   58    57
  28  |   14   18    8   12   25    6   27   12    7   21    5 |    17   25   18   22   33   16   29   23   20   21    17
  29  |    8   14    8    8   21    6   19    9    8   33    5 |    18   20   17   18   20   16   23   18   20   13    16
  30  |   10   11    8   10   14    5   14    7   10   12    3 |    15   17   19   15   24   16   22   17   16   16    15
  31E |    9   19    9   10   51    4   23   11   10   23    5 |    11   27   16   13   48   11   22   11   13   16    11
  32  |   13   22   10    7   18    5   22   20    8   18    5 |    17   32   23   21   30   19   33   21   21   27    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19    8   11   24    5   21   13   11   21      |T   16   28   22   21   34   20   28   21   22   22    19
 WRMS |   11   19    8   11   20    5   19   12    9   21      |NE  15   26   21   19   31   18   26   19   19   20    17
 MEDI |   10   19    8   10   23    5   22   13   10   17      |MD  15   27   20   20   33   17   28   19   18   18    18

Table 3.1558.6   GPS week: 1558   Day: 6   MJD: 55156.000                            

        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  |   12   31  ---  ---  ---   16  ---   21   14  ---   10 |    18   26  ---  ---  ---   26  ---   26   27  ---    20
   2  |    9   18   11   12   24    5   23   11    7   27    5 |    20   30   23   12   37   21   32   20   24   36    19
   3  |    9   11    7    9   14    5   13   13   13   47    5 |    20   27   25   23   29   22   29   20   28   43    22
   4  |   10   11    7    7   22    5    8   12    6   16    3 |    15   15   14   12   19   13   16   21   19   18    13
   5E |   22   23    9    8   18    9   22    9   13   14    5 |    61   59   63   67   64   55   56   62   57   61    60
   6  |    7    9    6    8   14    4   11   12   10   18    3 |    24   27   27   25   30   23   29   24   28   20    24
   7E |    9   24    9    6   20    4   17    8    6   10    4 |    15   30   23   18   30   18   27   17   19   16    16
  X8E |   18  ---   15   13   26    7   20   29   21   20    8 |    17  ---   12   16   29   40   14   37   35    8    18
   9E |   13   24   10   12   16    5   23   17   19   18    6 |    28   33   27   27   32   26   30   27   38   23    25
  10  |   10   17    7    8   31    6   14   14   11   18    4 |    18   24   17   20   29   15   24   17   21   20    16
  11  |    7   13    7    7   26    4   18   11    8   14    3 |    19   30   23   17   43   17   30   17   20   11    18
  12  |   10   21   11   10   26    4   25   14   11   19    5 |    12   23   14   17   23   17   25   15   15   17    15
  13  |    6   19   10   11   29    4   20   13   10    8    4 |    18   28   23   21   43   19   28   21   18   16    17
  14  |    9   17   10   11   24    4   22    8    8   12    4 |    14   28   23   26   33   17   26   20   21   19    21
  15  |    9   23   11    9   42    5   25   12   12   29    5 |    16   28   19   18   38   18   26   19   18   25    15
  16  |    9   23   10   10   22    4   23    9   11   30    5 |    16   32   21   19   36   18   30   17   19   25    17
  17  |    8   14    6   13   27    6   19   17   12   17    5 |    31   33   31   31   34   30   32   35   32   35    30
  18  |   11   21    9   13   47    5   20    7    8    9    4 |    20   37   27   27   58   23   36   26   25   29    27
  19  |    7   11    7    6   18    4   15   11   12   29    4 |    27   31   26   29   34   27   32   28   32   26    27
  20E |    9   19    7    9   29    6   19   18    9   14    4 |    25   29   27   25   30   24   29   33   28   25    25
  21  |   10   17    8    7   31    4   19   12    7   15    4 |    17   27   18   18   33   16   27   23   18   25    20
  22  |    6   17    6    9   38    4   14    9   10   11    3 |    26   32   24   22   43   24   31   30   31   31    27
  23  |    7   25   13   10   25    4   23    8   11   18    5 |    15   33   26   18   36   17   29   14   14   16    15
 X24  |   13   28  ---  ---  ---   18  ---   17  ---  ---   13 |    20   36  ---  ---  ---   14  ---   15  ---  ---    20
 X25E |   12   18    9   11  ---    5   17   19   11  ---    5 |    25   34   28   23  ---   25   36   28   26  ---    24
  26  |   10   12    8    8   15    4   14   12    8   25    4 |    18   26   21   23   24   18   22   26   20   29    20
  27E |   14   24   12    8   20    8   21   19   16   24    6 |    52   60   52   51   66   52   60   54   56   56    52
  28  |   10   19    9   13   30    4   25   16   10   20    5 |    21   26   22   27   34   19   28   31   21   26    20
  29  |   10   11    9    9   21    5   17   10    8   34    5 |    33   34   34   31   34   32   35   31   31   22    31
  30  |    7   12    9    9   18    5   14    8    9   10    3 |    19   21   22   19   24   19   21   23   19   15    18
  31E |    8   18   12   10   22    5   23   14   14   22    5 |    13   26   21   18   37   15   24   12   21   17    16
  32  |   11   20    8    8   21    7   19   19   11   20    5 |    18   25   19   19   30   17   33   21   19   27    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18    9    9   26    5   19   13   11   21      |T   22   30   25   23   35   23   29   25   25   25    22
 WRMS |    9   18    9    9   23    5   18   12    8   18      |NE  19   28   22   21   33   20   28   22   22   24    20
 MEDI |    9   18    9    9   24    5   19   12   11   18      |MD  19   29   23   21   34   19   29   23   21   25    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 4.1558   GPS week: 1558   MJD: 55150.0-55156.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3039 |U   14    12    32 |U    7     9    31 |U   11    21    63 |
emr | emr 2858 |    31    29    49 |U   10     8    31 |    10    21    61 |
esa | esa 2838 |    15    14    39 |U    7    10    31 |     9    18    58 |
gfz | gfz 2750 |U   24    20    50 |U   11    16    47 |    15    24    84 |
grg | grg 2729 |    13    13    38 |U   10    10    34 |    11    22    71 |
igr | igr 2963 |    16    14    34 |     7     9    33 |    11    22    71 |
igs | igs 2905 |    19    19    37 |     8     8    31 |    10    19    52 |
jpl | jpl 2770 |    16    20    46 |U    8     9    27 |U   10    20    45 |
mit | mit 3017 |U   22    22    36 |U   10    10    35 |U   11    23    60 |



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 5.1558.0   GPS week: 1558   Day: 0   MJD: 55150.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3042 |    12    12    33 |     7     7    24 |    11    10    26 |
emr | emr 2848 |    23    22    36 |     8     6    26 |     9    13    26 |
esa | esa 2880 |    12    14    45 |     6     7    22 |     7     6    19 |
gfz | gfz 2736 |    17    12    49 |    15    16    50 |    12     7    33 |
grg | grg 2688 |    11    12    34 |     7     9    27 |    10    10    18 |
igr | igr 2878 |    16    12    32 |     8    11    41 |    11    18    31 |
igs | igs 2944 |    20    19    36 |     6     6    21 |     9     9    23 |
jpl | jpl 2770 |    18    19    33 |     7     7    22 |    10    11    15 |
mit | mit 2976 |    20    22    29 |     9     6    27 |    11    12    26 |

Table 5.1558.1   GPS week: 1558   Day: 1   MJD: 55151.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3019 |    19    16    38 |     7     7    28 |     9     7    24 |
emr | emr 2819 |    20    22    52 |    11     7    28 |     9    12    31 |
esa | esa 2784 |    22    18    42 |     6     7    25 |     7     6    22 |
gfz | gfz 2733 |    25    24    52 |     8    13    44 |    13     9    47 |
grg | grg 2688 |    14    13    45 |     7     9    28 |     7     7    29 |
igr | igr 2971 |    20    18    30 |     7     6    27 |     8     9    28 |
igs | igs 2873 |    14    17    46 |     7     6    26 |     8     9    26 |
jpl | jpl 2771 |    16    23    42 |     9     8    27 |     7    12    17 |
mit | mit 2976 |    18    17    44 |    11     9    35 |     9     9    31 |

Table 5.1558.2   GPS week: 1558   Day: 2   MJD: 55152.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3051 |    27    17    37 |     6    11    32 |    29    90   311 |
emr | emr 2747 |    61    59    56 |    10    10    30 |    23    74   272 |
esa | esa 2688 |    13    14    35 |     7    12    32 |    27    84   298 |
gfz | gfz 2641 |    36    22    62 |    12    22    46 |    31   102   336 |
grg | grg 2688 |    23    19    54 |    10    11    25 |    23    90   308 |
igr | igr 2864 |    21    17    39 |     7    11    31 |    29    93   348 |
igs | igs 2782 |    39    48    41 |     8     9    34 |    23    76   231 |
jpl | jpl 2675 |    21    32    49 |    10    12    22 |    18    67   188 |
mit | mit 2880 |    37    45    43 |     9     9    36 |    26   107   266 |

Table 5.1558.3   GPS week: 1558   Day: 3   MJD: 55153.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3039 |    12    12    31 |     8    14    34 |     7     7    20 |
emr | emr 2758 |    41    37    55 |     9     8    37 |     9    10    25 |
esa | esa 2880 |    21    19    48 |     7    12    30 |     6     5    20 |
gfz | gfz 2738 |    54    42    94 |     7    11    39 |    10     8    40 |
grg | grg 2688 |    12    10    34 |    10    11    33 |     8     7    22 |
igr | igr 3003 |    21    22    47 |     6     8    31 |     7     6    23 |
igs | igs 2948 |    23    17    31 |     7     8    28 |     7     6    24 |
jpl | jpl 2770 |    17    19    57 |     7    10    30 |    10    11    23 |
mit | mit 3072 |    31    24    39 |     8     8    30 |     7     6    23 |

Table 5.1558.4   GPS week: 1558   Day: 4   MJD: 55154.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |     8     8    28 |     7    10    26 |     7    10    18 |
emr | emr 2946 |    26    25    37 |    12    10    35 |     7    13    23 |
esa | esa 2880 |    12    10    42 |     9    12    42 |     6    10    14 |
gfz | gfz 2745 |    13    12    27 |    15    27    51 |     9    13    39 |
grg | grg 2784 |    11    12    43 |    12    12    44 |     8    12    25 |
igr | igr 3035 |    13     9    32 |     7    10    34 |     7    12    25 |
igs | igs 3001 |    11     9    32 |    10    11    40 |     6    11    18 |
jpl | jpl 2768 |    15    16    37 |     9    12    36 |     9    13    25 |
mit | mit 3072 |    27    20    33 |    12    12    41 |     9    10    25 |

Table 5.1558.5   GPS week: 1558   Day: 5   MJD: 55155.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3032 |    11    11    27 |     6     7    30 |    10    14    24 |
emr | emr 2947 |    22    16    42 |     8     7    24 |    10    12    26 |
esa | esa 2880 |    12    11    28 |     6     9    29 |     7     8    19 |
gfz | gfz 2836 |    12    13    29 |     8    12    49 |    16    16    32 |
grg | grg 2784 |    13    12    27 |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2955 |    10     9    28 |     6     6    29 |     7     8    22 |
igs | igs 2859 |    13    10    34 |     7     6    28 |     8     9    21 |
jpl | jpl 2772 |    11    12    51 |     6     8    18 |     9    11    24 |
mit | mit 3072 |    12    15    34 |    10    10    29 |     8     9    24 |

Table 5.1558.6   GPS week: 1558   Day: 6   MJD: 55156.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3046 |    12    11    31 |     9    10    40 |     6     8    16 |
emr | emr 2946 |    23    26    62 |    10    10    37 |     8    15    24 |
esa | esa 2879 |    11    11    34 |     8     9    38 |     6     8    16 |
gfz | gfz 2823 |    13    12    35 |     9    13    53 |    13    12    60 |
grg | grg 2784 |    10     9    33 |    11     9    44 |     8     9    22 |
igr | igr 3039 |    11    11    28 |     9     9    40 |     6     9    19 |
igs | igs 2934 |    11    14    38 |     9     9    41 |     6    10    18 |
jpl | jpl 2864 |    12    22    50 |     9    11    36 |     8    15    22 |
mit | mit 3072 |     9     9    29 |     9    18    45 |     8    10    25 |


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 6.1558   GPS week: 1558   MJD: 55150.500-55156.500

                                                         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 |      14     -13     -46     307      1 |      -9     19
            |      32      18      45      90      7 |       1
emr   uuuuu |     -11      -4    -114      51      6 |      39     45
            |      24      27      78      46      9 |       1
esa   uuuuu |      -9      35     167    -104      3 |       1     20
            |      21      15     111      97     14 |       3
gfz   uuuuu |     -15      17     -65      33     -3 |     -10     19
            |      13      18      49      79      7 |       1
grg   --xxx |      --      --      -2     213      3 |      14     23
            |      --      --     104     159     20 |       2
igr   xxxxx |      15      53      87      81     13 |     -10     22
            |      18      21      60      65      7 |       5
irf   xxxxx |     -12     -18       7      88      0 |      -9     19
            |       9       8      27      15      3 |       3
jpl   uuuxu |      16       4    -171     360     12 |      -5     26
            |      34      16      60      95      8 |       1
mit   uuuuu |     -61     -19     -91    -150     -6 |       5     18
            |      10      13      77      50      5 |       2
ngs   uuuuu |      53     -31     160     199     -2 |     -12     21
            |      18      57     110      66      5 |       1
sio   uuuuu |      90     -24     -38      -5     -1 |      11     21
            |      18      20      73      63      6 |       2


Table 7.1558.0   GPS week: 1558   Day: 0   MJD: 55150.500

                                                         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 |      38     -38      10     190     -2 |      -9     20
emr   uuuuu |      -6       9    -135      27    -12 |      42     48
esa   uuuuu |     -18      38      87      62     17 |      -5     21
gfz   uuuuu |     -11      -6     -34    -103     -4 |      -9     19
grg   --xxx |      --      --     197      59     15 |      14     23
igr   xxxxx |      16      91      48      35      0 |     -15     24
irf   xxxxx |       2     -31      36      83      4 |     -13     21
jpl   uuuxu |      13      -1    -279     201      3 |      -4     26
mit   uuuuu |     -55     -38      10    -141     -4 |       3     18
ngs   uuuuu |      66      28     177     189     -6 |     -11     21
sio   uuuuu |     126     -61       2      42     -3 |      13     24

Table 7.1558.1   GPS week: 1558   Day: 1   MJD: 55151.500

                                                         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 |     -37       0     -64     249     -6 |     -10     19
emr   uuuuu |     -20      18    -158      80      4 |      38     43
esa   uuuuu |      17      34     411    -150      3 |      -3     22
gfz   uuuuu |     -36      15     -51     -26    -15 |     -10     19
grg   --xxx |      --      --     -19     115    -29 |      17     27
igr   xxxxx |      -5      56     178       7     17 |     -17     23
irf   xxxxx |     -21     -17      45      71      2 |     -12     21
jpl   uuuxu |     -22      15    -102     274     26 |      -7     24
mit   uuuuu |     -79     -23     -60    -100     -3 |       4     18
ngs   uuuuu |      86     -15     -48     152     -1 |     -12     21
sio   uuuuu |      78     -31     -28      89     -1 |      11     20

Table 7.1558.2   GPS week: 1558   Day: 2   MJD: 55152.500

                                                         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 |      58     -21    -111     278      1 |      -7     18
emr   uuuuu |     -42      26    -223     -33     16 |      40     46
esa   uuuuu |      21      10     174     -76     -3 |       2     21
gfz   uuuuu |      -5      -2    -125      70     -5 |      -8     18
grg   --xxx |      --      --    -126     329    -10 |      16     26
igr   xxxxx |      45      41     137       6     18 |     -12     22
irf   xxxxx |      -6     -18     -21      95      1 |      -7     18
jpl   uuuxu |      19      -5    -121     410     11 |      -2     27
mit   uuuuu |     -63     -17     -54     -92     -3 |       8     18
ngs   uuuuu |      30      10     174     120      1 |     -10     21
sio   uuuuu |      89     -19     -54      28      2 |      13     22

Table 7.1558.3   GPS week: 1558   Day: 3   MJD: 55153.500

                                                         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     -13     -54     359      3 |     -10     19
emr   uuuuu |      18      -5    -165      94     12 |      40     45
esa   uuuuu |     -20      46     138    -223    -18 |       3     20
gfz   uuuuu |      -4      25      -7      48      4 |     -11     20
grg   --xxx |      --      --      32     206     -3 |      11     21
igr   xxxxx |      26      69     118     138     12 |     -10     21
irf   xxxxx |     -12      -9      20     112      0 |      -8     18
jpl   uuuxu |      -1      -3    -172     426     13 |      -4     26
mit   uuuuu |     -63      -4     -59    -129     -4 |       7     18
ngs   uuuuu |      52     -62     104     270      4 |     -12     22
sio   uuuuu |      83      -4       0     -27      5 |      10     19

Table 7.1558.4   GPS week: 1558   Day: 4   MJD: 55154.500

                                                         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 |      24      18     -44     459     12 |     -11     19
emr   uuuuu |      11       5     -15      70     12 |      39     44
esa   uuuuu |     -16      39     119    -109     -9 |       3     20
gfz   uuuuu |     -16      49     -89     117      3 |     -11     20
grg   --xxx |      --      --     -29     451      2 |      12     21
igr   xxxxx |      13      32      15     161     10 |      -8     20
irf   xxxxx |      -7     -17      -3     101      2 |      -8     18
jpl   uuuxu |     -10      37    -210     331     12 |      -5     26
mit   uuuuu |     -50     -19    -117    -174     -2 |       5     18
ngs   uuuuu |      45    -121     274     149    -10 |     -13     22
sio   uuuuu |      97     -17     -59     -18      6 |      10     19

Table 7.1558.5   GPS week: 1558   Day: 5   MJD: 55155.500

                                                         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 |     -10     -16     -74     355      9 |      -9     19
emr   uuuuu |     -38     -36     -80      26      2 |      40     46
esa   uuuuu |     -13      56     115     -42      8 |       4     20
gfz   uuuuu |     -30      23     -23      10      3 |      -9     19
grg   --xxx |      --      --     -90     314     15 |      15     22
igr   xxxxx |      16      48      77     132     20 |      -5     20
irf   xxxxx |     -19     -11     -20      81     -2 |      -6     18
jpl   uuuxu |      82      -3    -144     465      2 |      -5     26
mit   uuuuu |     -54      -1    -232    -233    -11 |       6     18
ngs   uuuuu |      43     -78     275     297      4 |     -11     20
sio   uuuuu |      91      -2    -178    -104     -6 |      12     21

Table 7.1558.6   GPS week: 1558   Day: 6   MJD: 55156.500

                                                         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     -17      14     258     -7 |     -10     20
emr   uuuuu |       4     -46     -21      92      4 |      38     44
esa   uuuuu |     -36      24     125    -193     22 |       2     19
gfz   uuuuu |      -4      15    -128     116     -5 |     -11     20
grg   --xxx |      --      --      22      20     31 |      14     21
igr   xxxxx |      -6      37      35      89     14 |      -5     20
irf   xxxxx |     -22     -25     -10      76     -6 |      -8     19
jpl   uuuxu |      34      -9    -169     412     18 |      -6     27
mit   uuuuu |     -62     -28    -128    -183    -17 |       2     19
ngs   uuuuu |      53      23     166     217     -6 |     -14     22
sio   uuuuu |      69     -33      52     -42    -10 |       9     21



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