[IGSREPORT-18300] Wk 1569 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Feb 18 05:22:47 PST 2010


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IGS Electronic Report   18 Feb 05:23:11 PST 2010      Message Number 18300
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1569   (Jan 31, 2010 - Feb 06, 2010)

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:

igs1569[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1569[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1569[0-6].cls  IGS GPS clock combination summary report.
igs15697.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15697.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  |  EMR   | WTZR WTZR
                0  |  ESA   | UNSA
                0  |  GFZ   | 14 15 16 23 26 ABPO ALIC AREQ ASPA BJFS CAS1 CHAT
                0  |  GFZ   | CHUR DARW DAV1 DGAR GLSV GUAT HARB HOB2 HOLM KARR
                0  |  GFZ   | MAC1 MAL2 PDEL PERT RABT RESO REUN SUTM SYOG THU3
                0  |  GFZ   | TRO1 TWTF VILL WUHN YAR2 YELL
                0  |  GRG   | ONSA ULAB
                0  |  JPL   | 32
                0  |  MIT   | 7 25 7 25 26 HARB
                1  |  ALL   | 1
                1  |  COD   | WROC WROC
                1  |  EMR   | 26 12 15 16 19 25 26 28 29 WTZR WTZR
                1  |  GFZ   | 5 6 14 15 16 26 AMC2 AUCK BAKO BRUS BUE1 CAS1 CEDU
                1  |  GFZ   | COCO CONZ CRO1 DARW DAV1 GLSV GUAM GUAT HARB HOFN
                1  |  GFZ   | HOLM HYDE KIRU KIT3 KOUR MAS1 MAW1 MCM4 MDO1 MIZU
                1  |  GFZ   | NICO NRMD NTUS NYAL PERT PIE1 PIMO PRDS SANT SCUB
                1  |  GFZ   | SYOG TLSE TRO1 TSKB TWTF UNSA WAB2 WSRT WUHN YAKT
                1  |  GFZ   | YAR2 YELL
                1  |  GRG   | NRC1
                1  |  JPL   | 15 16 19 23 26 29 32
                1  |  MIT   | 25 26 25 26
                2  |  COD   | 25
                2  |  EMR   | 25 26 26 KHAJ WTZR KHAJ WTZR
                2  |  ESA   | 10 10 25 CEDU UNSA
                2  |  GFZ   | 5 15 23 29 31 ALGO ALIC ALRT AREQ BOR1 BRFT BRUS
                2  |  GFZ   | BUE1 CAS1 CEDU COCO CONZ DARW FAA1 GLSV GRAZ GUAM
                2  |  GFZ   | GUAT HARB HOB2 HRAO KIRU KIT3 LPGS NRC1 NYAL ONSA
                2  |  GFZ   | OUS2 PIMO PRDS QAQ1 RESO SUTH SUTM THTI THU3 TIDB
                2  |  GFZ   | TOW2 TWTF ULAB WSRT WTZR YAKT YELL YKRO
                2  |  GRG   | NRC1
                2  |  JPL   | 32 BAKO GUAT
                2  |  MIT   | 10 25 26 10 26 PTBB HARB PTBB TRO1
                3  |  COD   | 26
                3  |  EMR   | 26 HARB WTZR WTZR
                3  |  GFZ   | 9 13 17 21 29 ABPO ADE1 ALGO ALIC ALRT AMC2 AREQ
                3  |  GFZ   | ARTU ASPA AUCK BAKO BOGT BOR1 CAS1 CHUR COCO CONZ
                3  |  GFZ   | DGAR DUBO GLSV GRAZ GUAM GUAT HARB HOB2 HOFN HRAO
                3  |  GFZ   | HRM1 KIRU MAC1 MAL2 MAS1 MAW1 MCM4 MIZU NRC1 NTUS
                3  |  GFZ   | NYAL PIE1 PIMO PRDS RABT RAMO RESO SANT SEY1 SFER
                3  |  GFZ   | SHAO STJO SYOG THU3 TOW2 TSKB UNSA WAB2 WHIT WSRT
                3  |  GFZ   | WTZR WUHN YAKT YAR2 YELL ZIMM
                3  |  GRG   | ONSA
                3  |  JPL   | 15 23 32 DGAR
                3  |  MIT   | 25 25 CEDU CEDU
                3  |  NGS   | 1
                4  |  COD   | NRIL
                4  |  EMR   | 3 3 26 WTZR WTZR
                4  |  ESA   | MAL2
                4  |  GFZ   | 3 5 14 17 ALRT ARTU AUCK BOR1 BRUS CAS1 DGAR GUAM
                4  |  GFZ   | HARB MAC1 MAS1 NICO NRC1 NYA1 NYAL OHI2 OUS2 QIKI
                4  |  GFZ   | RAMO STJO TEHN TIDB TLSE TOW2 TSKB WAB2 YKRO YSSK
                4  |  GRG   | SPT0
                4  |  JPL   | 3 26 32 DGAR
                4  |  MIT   | 25 26 3 25 26 COCO HARB
                5  |  ALL   | 1 1
                5  |  EMR   | 3 25 26 3 25 26 WTZR WTZR
                5  |  GFZ   | 3 9 14 15 22 23 24 28 ADE1 AREQ ASPA BAKO BOR1 BUE1
                5  |  GFZ   | CEDU CHAT CHPI CONZ GRAZ GUAM HARB HOB2 HOLM HYDE
                5  |  GFZ   | KIRU LPGS MAC1 MAL2 MATE MCM4 MDO1 MIZU NTUS OHI2
                5  |  GFZ   | OUS2 PIMO QIKI RABT RAMO SCUB SHAO SUTH SUWN TSKB
                5  |  GFZ   | VILL WAB2
                5  |  GRG   | ONSA
                5  |  JPL   | 3 32 DGAR
                5  |  MIT   | 3 25 26 3 25 26
                6  |  ALL   | 1 1
                6  |  EMR   | 3 25 3 25 WTZR WTZR
                6  |  GFZ   | 5 15 23 26 28 ADE1 AMC2 AREQ ASPA AUCK CHAT EIL1
                6  |  GFZ   | FAA1 GLPS GOLD GUAT HARB KIT3 KOUC LPGS MCM4 MDO1
                6  |  GFZ   | METS NRC1 OUS2 RESO SANT SCUB SFER UNSA WES2 WUHN
                6  |  GFZ   | YAKT YELL YSSK
                6  |  GRG   | ONSA
                6  |  JPL   | 26 32 DGAR
                6  |  MIT   | 3 25 3 25 26 MAW1 MAW1

 5. 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
               ----+------------+----------
               G17 | 2010_02_02 | 2010017 

 6. 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 G03 |    |    |    |    |    |  1 |    |

 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 all the AC orbit and ERP values in order
    to align them to the IGS05 frame. These rotations were estimated in the IGS
    SINEX combination process, performed by the IGS Reference Frame Coordinator
    at the Institut Geographique National (IGN), and are based on the common
    stations between the individual AC SINEX solutions and the IGS05.snx SINEX
    frame. 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  |     .0    1.6     .5     -18     -1    -27    -.07
       EMR  |   -1.1   -3.4    5.8      24    -14     30     .47
       ESA  |    3.8    4.8    1.7      77    -25     15    -.04
       GFZ  |     .5    1.3    1.3       5      2    -13     .04
       GRG  |    1.5   12.2    6.8       3     19     78    1.03
       JPL  |    2.7   -3.2    9.1      13    -40    -77     .44
       MIT  |    4.7   -5.9   -3.0      22      4    -19     .25
       NGS  |    7.5   -1.6  -10.1     -30   -137     -9     .36
       SIO  |    2.2   -3.0    9.9     -87     24    -10     .47


 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 IGN. 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 1.1569.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1569.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 2.1569.[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 3.1569.[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 5.1569.0-6).

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 1569 summary.                       (Jan 31, 2010 - Feb 06, 2010)

Table 1.1569.a   GPS week: 1569   MJD: 55227.000-55233.000

         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  242|    1     0     0    44   -34   -29  -.14    8    7 |    -524     -10     18     73
        |    0     0     1    18    13     8   .01           |     507     779
emr   91|   -2     1     7   -48   -50   -19   .43   19   19 |     761       0     25     91
        |    1     1     2    28    32    14   .03           |     827    1244
esa  130|    1     0    -1  -123    -7    32   .25    8    8 |    -560     391     15    101
        |    1     0     1    27    13    15   .02           |     871    1326
gfz  196|   -1    -1    -5   -26   -34     8  -.11   10   10 |      85    -676     34    137
        |    0     0     1    65    68    13   .03           |     315     867
grg  107|    0     0     6    36  -107    22  1.03   24   22 |   49197  -64135     65    229
        |    1     0     2    39    33    18   .05           |  130283  169372
igr  n/a|    0     0    -1    25   -36   -23   .04    5    5 |   -7119     -28     19     65
        |    0     0     0    22    20    15   .03           |     841    1388
jpl  130|    0     0     6   -46    42    -4   .44   19   18 |    2837     145     20     95
        |    0     1     1    23    23    36   .03           |    1306    1495
mit  256|    0     0    -2    -2   -69     4  -.27   13   11 |   -9200    1344     25    155
        |    0     0     0    40     9    11   .04           |    8590    2007
ngs  219|   -1     0    -4   100   213   -15  -.18   10    8 |   96252   -9069   2199   3689
        |    0     0     1    37    32    14   .04           |  339422  269641
sio  261|   -1     1    14   171  -100    21  -.08   19   18 |     ---     ---    ---    ---
        |    0     1     0    38    14    10   .03           |     ---     ---


Table 1.1569.b   GPS week : 1569   MJD: 55227.000-55233.000   

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



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 2.1569.0   GPS week: 1569   Day: 0   MJD: 55227.000                            

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  242|    0     0     0    70   -41   -35  -.14    8    8 |    -305    -360     22     75
        |                      1   -22                       |
emr   91|   -1    -1     7   -24    -2   -43   .38   19   19 |     670     100     19     78
        |                    -25   -51                       |
esa  130|    3     1     0  -162    15    38   .29    9    9 |   -1100    2427     13     90
        |                      6   -47                       |
gfz  196|   -2    -2    -5   -87  -131    35  -.12    9    9 |      42    -351     31    120
        |                    -83   -47                       |
grg  107|    0     0     7    96   -48    25   .99   25   21 |      70    -271     56    206
        |                   -154   -53                       |
igr  n/a|    0     0    -2    41   -44   -17   .05    5    5 |   -7513     274     18     66
        |                    -49   -51                       |
jpl  130|    0     0     7   -87    17     9   .47   18   18 |    1564     767     18    109
        |                     91   -58                       |
mit  256|    1     0    -2    -7   -79     1  -.25   14   12 |     -25     -63     23    159
        |                     -1     9                       |
ngs  219|   -2     0    -3   153   238   -18  -.13    9    7 |    -306    -407   1826   3724
        |                    -22   -42                       |
sio  261|    0     0    14   180   -99    15  -.09   20   19 |     ---     ---    ---    ---
        |                    -89    14                       |

Table 2.1569.1   GPS week: 1569   Day: 1   MJD: 55228.000                            

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  242|    0     0    -1    54   -36   -29  -.15    7    7 |    -239    -435     18     81
        |                      0    -7                       |
emr   91|   -2     0     8   -14   -32    -9   .43   20   20 |     -52     555     42    109
        |                    -25     5                       |
esa  130|    1     0     0   -93    -6    53   .26    7    7 |    -522     743     18    107
        |                    -22     1                       |
gfz  196|   -1     0    -5   -56   -51     8  -.09    9    9 |      83    -531     37    166
        |                    -60   -53                       |
grg  107|    0     0     4    59  -133    44   .96   24   21 |  344652 -448235     56    256
        |                    -81    63                       |
igr  n/a|    0     0     0    31   -41   -44   .04    4    4 |   -7968     593     22     69
        |                    -41   -31                       |
jpl  130|    0     1     6   -42    33     0   .42   18   17 |    1336     980     31     90
        |                     31   -26                       |
mit  256|    1     0    -1   -29   -50   -16  -.24   13   11 |  -15925     885     29    146
        |                      5    15                       |
ngs  219|    0     0    -4   118   231   -14  -.24   11    8 | -351840  502316   2654   4230
        |                      4    -3                       |
sio  261|   -1     0    14   155   -81     7  -.11   19   18 |     ---     ---    ---    ---
        |                    -65    27                       |

Table 2.1569.2   GPS week: 1569   Day: 2   MJD: 55229.000                            

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  242|    1    -1     0    18   -27   -14  -.14    7    7 |    -716     426     16     55
        |                     56     7                       |
emr   91|   -1     1     8   -69   -23     0   .40   18   18 |     289   -1161     17     94
        |                      3     7                       |
esa  130|    1     0    -2  -129   -12     5   .24    7    8 |     345    -869     12     99
        |                     26    -6                       |
gfz  196|   -2     0    -3    56   -42    10  -.11   10   10 |     383   -1747     33    138
        |                    -47   -41                       |
grg  107|    0     0    10    30   -95    34  1.02   21   21 |       4    -530     59    225
        |                      3    53                       |
igr  n/a|    0     1     0    -7   -14   -31   .05    5    5 |   -7479   -1270     16     72
        |                      0   -42                       |
jpl  130|    0     2     4   -62    53    -6   .41   18   17 |    2295    -936     15     81
        |                     53   -45                       |
mit  256|    0     0    -2    43   -65     9  -.25   12   11 |     251    -756     19    172
        |                    -16    15                       |
ngs  219|   -1     0    -4    44   227    -9  -.19   11    8 |    -741     416   2645   3850
        |                     89   -15                       |
sio  261|    0     0    15   215  -106    27  -.10   18   17 |     ---     ---    ---    ---
        |                    -72    27                       |

Table 2.1569.3   GPS week: 1569   Day: 3   MJD: 55230.000                            

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  242|    1     0     0    30   -16   -39  -.14    9    7 |     260   -1064     25     75
        |                     24   -17                       |
emr   91|   -4     2     3   -81   -50   -29   .43   19   19 |      57    1006     52    123
        |                     30    32                       |
esa  130|    1     0    -1  -133   -20    44   .22    8    8 |    -139     -10     27    113
        |                     51    11                       |
gfz  196|   -2    -1    -4     2   -43    -2  -.16   11   11 |     621   -2014     53    179
        |                    -45   -26                       |
grg  107|    3     1     2     3   -89     9  1.02   23   21 |     236    -555     90    238
        |                     37    86                       |
igr  n/a|    0     1    -1    14   -11     4   .03    6    5 |   -7683    1183     23     76
        |                    -48   -36                       |
jpl  130|    0     1     4   -47    88    16   .47   21   20 |    2547    1438     37    107
        |                     35   -54                       |
mit  256|    0    -1    -3    41   -71     4  -.23   12   10 |  -15938    1602     34    153
        |                    -19     7                       |
ngs  219|   -1     0    -1    68   241   -14  -.15   12    9 |   19119  -13156   2092   3423
        |                     79   -22                       |
sio  261|   -1     1    14   210   -87    18  -.10   18   18 |     ---     ---    ---    ---
        |                    -84    16                       |

Table 2.1569.4   GPS week: 1569   Day: 4   MJD: 55231.000                            

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  242|    1     0     1    63   -53   -20  -.14    7    7 |    -815     317     15     75
        |                     -7    -2                       |
emr   91|   -3     1     8   -17   -85   -26   .47   18   18 |     573    1778     18     74
        |                    -24    50                       |
esa  130|    2     0    -1   -86   -16    35   .27    8    8 |    -824    1625     13    106
        |                    -10     9                       |
gfz  196|   -1    -1    -7  -120    73     7  -.10    9    9 |    -219     244     31    115
        |                    -41   -59                       |
grg  107|    0     0     7    39  -149   -10  1.06   25   23 |    -340     216     72    253
        |                    -76   128                       |
igr  n/a|    0     0    -1    61   -69   -30   .09    5    5 |   -7182    1816     18     59
        |                    -49   -13                       |
jpl  130|    0    -1    10   -13    28    -8   .49   18   17 |    3073    1848     13     90
        |                     73   -78                       |
mit  256|    0    -1    -3   -50   -69     6  -.28   12   10 |    -282     158     26    155
        |                     14   -12                       |
ngs  219|    0     0    -5   131   164   -23  -.21   10    7 |  226966 -130675   1991   3538
        |                    -37    41                       |
sio  261|   -2     2    14   128  -114    15  -.09   17   17 |     ---     ---    ---    ---
        |                    -63    26                       |

Table 2.1569.5   GPS week: 1569   Day: 5   MJD: 55232.000                            

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  242|    0     1     2    39   -45   -30  -.12    7    6 |   -1347    1349     15     73
        |                     38    -1                       |
emr   91|   -3     0     7   -62   -86   -11   .44   20   20 |    2129    -477     13     79
        |                    -26    43                       |
esa  130|    2     0    -1  -145     3    23   .24    8    8 |   -2075     151     12     93
        |                     23    12                       |
gfz  196|    0    -1    -6   -18    31     1  -.12    9    9 |    -231    -380     27    127
        |                    -16   -36                       |
grg  107|    0     1     9    51  -128    37  1.11   25   22 |    -377     907     60    242
        |                    -69   110                       |
igr  n/a|    0     0    -1    19   -46   -15   .01    6    5 |   -5535    -718     20     56
        |                    -30   -17                       |
jpl  130|    0     0     8   -40    28    39   .42   20   18 |    4875    -862     15     94
        |                     68   -12                       |
mit  256|    0     0    -4    26   -78     2  -.29   13   11 |  -16219    5225     23    144
        |                    -11   -14                       |
ngs  219|    0     0    -4    90   171   -37  -.18   11    8 |  761621 -408739   1999   3805
        |                     91    54                       |
sio  261|   -1     2    13   190  -122    30  -.02   18   16 |     ---     ---    ---    ---
        |                    -86    17                       |

Table 2.1569.6   GPS week: 1569   Day: 6   MJD: 55233.000                            

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  242|    0     0     4    35   -18   -34  -.14    9    8 |    -508    -303     18     78
        |                     -9     3                       |
emr   91|   -2     4     5   -68   -73   -15   .42   17   17 |    1666   -1795     19     81
        |                    -15    72                       |
esa  130|    0     0    -3  -115   -16    27   .25    9    9 |     392   -1328     13    101
        |                      4    44                       |
gfz  196|    0    -2    -5    40   -79    -3  -.08    9    9 |     -78      46     32    117
        |                    -25   -18                       |
grg  107|    0     0     5   -25  -109    19  1.03   24   22 |     137    -478     64    188
        |                     19    87                       |
igr  n/a|    0     1    -1    19   -24   -32  -.00    5    4 |   -6477   -2077     19     61
        |                    -53   -14                       |
jpl  130|    1     1     6   -31    45   -79   .41   19   18 |    4169   -2218     16    100
        |                     21    10                       |
mit  256|    0    -1    -3   -44   -73    23  -.33   13   12 |  -16263    2361     21    160
        |                     15   -22                       |
ngs  219|    0     0    -5    95   219    10  -.16   10    9 |   18947  -13238   2188   3253
        |                    -13    21                       |
sio  261|   -2     1    14   119   -92    38  -.06   19   18 |     ---     ---    ---    ---
        |                    -80    -2                       |

       
       
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 3.1569.0   GPS week: 1569   Day: 0   MJD: 55227.000                            

        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  |    5  ---  ---  ---  ---   26  ---  ---  ---  ---    0 |    22  ---  ---  ---  ---   21  ---  ---  ---  ---    22
   2  |    9   19   10   15   21    4   22    9    6   34    5 |    22   29   28   35   33   24   30   24   25   28    23
   3  |    8   26   10   13   24    7   16   20   11   18    5 |    37   51   38   46   40   38   39   40   44   42    40
   4  |    7   11    7    9   18    5   12   12    7   21    3 |    33   32   37   38   39   35   34   35   39   29    35
   5  |    5   20    8    8   35    4   24   11    7   32    5 |    24   35   28   30   47   27   35   23   31   31    26
   6  |    6   17   10   12   21    6   16   21   10   15    5 |    25   39   30   34   37   27   39   27   28   40    29
   7  |    8   21   11    7   26    4   22   22    9   17    5 |    26   34   29   31   42   25   31   29   25   28    25
   8  |    7   13    9    7   15    4   12   13    6   15    3 |    51   55   57   57   59   53   54   52   52   50    50
   9  |    6   12    9    5   17    3   10   12    8   11    3 |    27   31   26   32   35   28   30   32   29   25    27
  10  |    7   16    6    6   19    6   13   12    9   32    4 |    36   37   39   44   41   40   36   37   40   32    36
  11  |   14   19    7    6   29    6   18   17   13   22    5 |    39   42   42   40   46   41   43   46   45   40    41
  12  |    7   18    8    8   23    4   16   10    6   16    4 |    23   33   26   27   38   25   35   23   31   26    25
  13E |    6   17    9    9   25    5   20   14   11   17    4 |    20   31   23   18   41   19   28   19   22   19    20
  14E |    8   25    8    8   19    3   17    8    9   17    4 |    18   29   24   22   29   19   28   20   27   23    21
  15E |    9   19    5   10   28    6   26   11   11   20    4 |    70   74   74   83   71   75   75   74   76   78    73
  16  |    7   22   12    7   21    3   23   22   10   20    5 |    21   32   24   21   40   22   34   31   27   27    24
  17  |    7   18    9    9   40    4   16   10    9   10    4 |    12   20    8   13   28   11   18    9   18    9    12
  18  |    6   18    8    8   26    3   22    7    7   19    4 |    27   37   31   31   42   29   39   29   32   35    30
  19  |    8   24   10    9   31    5   21   12   10   13    4 |    24   35   29   22   42   22   33   21   27   28    24
  20  |    9   22    9   19   28    5   22   10    8   26    5 |    27   35   30   32   43   27   36   28   31   32    28
  21  |    7   12    7    8   21    4   20    7    7   32    4 |    24   30   26   28   34   24   29   26   29   27    26
  22  |    6   16    5    9   26    5   21    7    7   18    3 |    28   38   33   33   46   29   40   31   31   29    31
  23E |    6   17   10    7   17    6   22   10   10   16    4 |    25   33   32   25   36   24   30   22   29   26    27
  24  |   10   13    7    8   17    4   10   12    7   16    3 |    43   47   49   50   44   47   47   46   50   48    48
 X25  |   12   21   11  ---  ---   16  ---   13    7  ---    6 |    33   35   41  ---  ---   39  ---   34   34  ---    33
  26E |   10   24    9    9   33    4   20   29   18   11    6 |    23   30   25   27   43   24   33   40   37   25    26
  27  |    6   13    8    6   17    4    8    5    9   24    3 |    23   28   24   31   32   25   27   25   28   32    24
  28  |    8   25   13    9   30    6   15   10   10   16    4 |    20   37   27   23   44   23   31   22   25   18    21
 X29  |    9   27   10   10   24    4   22   14   10  ---    5 |    26   40   24   26   45   25   37   25   31  ---    26
  30  |    8   20    8    8   14    5   16   10    6   20    4 |    23   35   22   23   33   23   33   27   28   33    23
  31  |    9   20    7    9   25    4   20   16   10   16    4 |    24   38   31   28   43   27   33   28   29   31    27
  32  |    5   17    9    9   33    5   17   15    8   13    4 |    23   26   28   24   38   23   28   27   31   25    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    9    9   25    5   18   14    9   20      |T   28   36   31   32   41   29   35   30   33   31    29
 WRMS |    8   19    9    9   21    5   18   12    7   19      |NE  27   35   30   31   40   28   34   29   32   30    28
 MEDI |    7   19    9    8   24    4   18   12    9   17      |MD  24   35   29   30   41   25   33   28   31   29    26

Table 3.1569.1   GPS week: 1569   Day: 1   MJD: 55228.000                            

        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  ---  ---  ---  ---   53  ---   17   26  ---   13 |    21  ---  ---  ---  ---   40  ---   20   27  ---    19
   2  |    9   21    8   20   23    6   18    9   11   33    5 |    19   30   25   33   30   22   26   20   25   25    22
   3  |    7   26    9   12   19    4   16   19   11   20    5 |    50   59   51   54   51   50   51   51   54   52    50
   4  |    5   11    5   10   18    2    8    8    9   21    3 |    20   21   22   25   26   21   22   21   22   22    20
   5  |    6   20    8   12   36    5   21    9   11   25    4 |    13   28   17   15   39   14   30   13   18   23    15
   6  |    7   17    8   12   14    4   16   22   12   15    4 |    22   38   30   30   34   27   36   26   31   34    26
   7  |    7   25    7    6   27    4   24   16    6   15    4 |    19   31   26   20   38   19   28   24   21   24    20
   8  |    7   14    3    8   14    3   10   11    9   12    3 |    53   56   57   52   62   54   56   55   56   56    54
   9  |    4   13    6    8   18    4    8   11    9   11    3 |    20   19   20   19   31   18   19   18   23   18    18
  10  |    7   18    6   10   22    6   12   27   14   38    6 |    62   61   60   57   54   59   60   63   59   60    59
  11  |    8   18    6    7   28    5   17   12    7   16    4 |    28   35   25   28   41   28   32   32   33   27    28
  12  |    6   26    6    6   28    4   19    9    6   16    4 |    20   31   18   16   37   15   26   16   20   18    17
  13E |    5   18    6    8   22    3   20    9    9   12    3 |    14   27   18   15   33   14   24   13   19   14    14
  14E |    6   18    7    8   29    3   18   10   13   10    4 |    19   27   24   22   42   20   28   19   30   19    21
  15E |    7   20    6    7   25    5   25   12    9   17    4 |    66   64   64   60   64   62   63   66   65   69    64
  16  |    7   27    8   14   24    5   24   16    9   18    5 |    16   30   16   22   32   16   29   22   24   18    17
  17  |    7   19    7    7   24    5   15    7    8    9    3 |    13   20    9    8   25   11   17   10   19   11    11
  18  |    7   23    7    6   22    4   22    9    9   16    4 |    17   28   19   18   34   16   29   16   15   18    16
  19  |    8   26    7    8   24    5   22   11   13   12    4 |    20   34   24   18   34   20   30   19   30   25    22
  20  |    8   21    9   13   29    6   22    7   10   23    4 |    20   31   23   23   36   21   31   21   27   21    21
  21  |    6   15    5    7   19    4   15    9   10   32    4 |    20   26   23   21   30   17   22   18   18   23    18
  22  |    6   16    6    7   26    5   18   10   10   14    3 |    20   29   24   23   39   20   31   22   23   16    21
  23E |    5   14    6    8   23    5   23    9   10   12    3 |    23   33   29   25   35   24   31   22   29   23    25
  24  |    8   15    5    5   20    4    9    8   11   19    3 |    33   33   35   35   34   31   33   32   31   31    32
 X25  |   11   20    9  ---  ---   25  ---   14   20  ---    7 |    29   44   42  ---  ---   40  ---   39   43  ---    36
  26E |    9   24   10    7   29    3   20   26   21   15    6 |    20   31   23   21   40   19   31   29   31   18    21
  27  |    4   13    6    8   18    4    8    8   10   25    3 |    19   21   20   18   32   17   18   16   21   30    17
  28  |    4   24    7    9   30    5   18   11    9   16    4 |    20   31   23   20   44   21   29   16   20   14    19
 X29  |    9   31    6    8   20    4   23    9   12  ---    5 |    23   38   25   23   37   23   33   20   26  ---    24
  30  |    7   19    5    5   18    4   13    8   11   22    4 |    16   27   19   19   29   19   22   17   21   24    17
  31  |    6   18    7    7   29    5   21   11   11   15    4 |    19   30   23   22   42   21   31   18   23   20    21
  32  |    6   18    8    8   29    6   15   15   11   13    4 |    17   24   22   18   36   17   23   18   27   17    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    7    9   24    4   18   13   11   19      |T   24   33   27   26   38   25   31   25   29   26    25
 WRMS |    7   20    7    9   21    4   17   11    8   18      |NE  23   31   25   24   36   24   29   23   26   24    23
 MEDI |    7   19    7    8   23    4   18   10   10   16      |MD  20   31   23   22   36   20   29   20   25   23    21

Table 3.1569.2   GPS week: 1569   Day: 2   MJD: 55229.000                            

        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  |    3  ---  ---  ---  ---  131  ---  ---  ---  ---    0 |    17  ---  ---  ---  ---   97  ---  ---  ---  ---    18
   2  |    6   16    6   15   21   10   18    8   10   29    4 |    20   28   27   29   33   23   26   20   26   20    22
   3  |    9   19    9   13   24    6   15   13   10   16    4 |    55   64   59   60   63   59   66   60   60   65    59
   4  |    7   11    4   12   18    6    8    7   10   19    3 |    30   30   31   33   32   32   29   31   34   30    31
   5  |    6   22   10   11   21    6   23   10   14   23    5 |    21   34   27   25   38   24   33   19   27   23    23
   6  |    7   14    6   10   16    7   16   14   10   16    4 |    23   34   27   28   36   25   35   25   27   34    26
   7  |    6   21    6    9   23    4   22   13    9   15    4 |    20   30   24   23   39   21   28   25   21   23    21
   8  |    7   10    6    8   16    4   11   11    6   11    3 |    24   27   29   28   36   27   31   26   32   28    28
   9  |    6   13    7    9   13    5    9    9    7   12    3 |    17   23   20   21   29   19   20   20   23   19    19
  10  |    7   16    6    8   19    5   12   10   10   28    4 |    29   35   33   34   32   31   30   27   30   30    30
  11  |   10   17    6    9   28    6   17   13   11   14    4 |    30   35   34   36   40   32   34   38   32   32    32
  12  |    7   21    5    8   23    4   20   13   11   15    4 |    21   31   26   22   37   22   33   20   32   21    23
  13E |    6   17    6    9   21    5   20   10   12   14    4 |    13   26   19   14   35   15   25   15   14   16    14
  14E |    6   19    8    8   22    4   18   11    9   11    4 |    16   25   23   19   35   19   25   19   21   20    18
  15E |    8   21    8    9   20    7   27   16   10   14    5 |    59   64   63   63   61   62   64   62   66   64    62
  16  |    6   20    8    8   22    5   21   13    9   15    4 |    17   26   19   17   33   18   28   21   22   20    18
 X17  |    3  ---  ---  ---  ---   23  ---  ---  ---  ---    0 |    23  ---  ---  ---  ---   24  ---  ---  ---  ---    25
  18  |    6   22    8   10   22    5   21   11   10   19    4 |    21   34   23   25   36   24   33   23   24   27    23
  19  |    6   24    8    9   22    5   19   15   12   12    4 |    22   34   23   23   37   23   28   19   29   25    22
  20  |    8   21    9   16   27    7   22    8   11   19    5 |    20   32   24   30   37   23   32   24   25   24    22
  21  |    7   17    8    9   22    6   16   11    7   32    4 |    19   27   21   21   31   21   23   22   20   26    19
  22  |    5   18    7    7   26    7   20   11   13   13    4 |    23   34   25   27   41   25   34   27   23   23    24
  23E |    5   15    6    8   20    6   25   14    9   10    4 |    25   30   27   27   33   25   31   28   30   27    26
  24  |    6   14    6    5   17    5    8    9    8   18    3 |    43   45   45   47   39   44   42   43   45   44    44
 X25  |   12   29   11  ---  ---   17  ---   15   15  ---    7 |    22   33   22  ---  ---   28  ---   25   28  ---    22
  26E |    9   25   11    9   18    5   20   27   21   14    6 |    21   34   28   25   39   25   33   33   31   26    24
  27  |    6   14    8    8   13    4    8    8   11   25    4 |    17   22   20   20   27   17   19   17   21   29    18
  28  |    4   22   11   11   24    4   20   10   11   16    4 |    18   34   24   18   39   21   31   20   25   18    20
 X29  |    9   26    6    7   21    6   20   11   12  ---    5 |    18   35   21   17   35   21   28   24   22  ---    20
  30  |    7   17    4    7   15    3   12   12   12   21    4 |    15   25   20   21   29   18   23   24   23   26    18
  31  |    7   21    9   10   25    5   20    9   17   14    4 |    21   31   27   27   41   24   29   22   28   26    24
  32  |    8   19    8    9   30    4   16   11    9   10    4 |    17   24   25   24   35   20   25   23   23   19    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   18    7   10   21    5   18   12   11   18      |T   23   32   27   27   37   28   31   26   28   28    25
 WRMS |    7   18    8   10   21    5   17   11    8   17      |NE  21   30   25   25   35   27   29   24   26   25    23
 MEDI |    6   19    7    9   21    5   19   11   10   15      |MD  21   31   25   25   36   24   30   24   26   26    22

Table 3.1569.3   GPS week: 1569   Day: 3   MJD: 55230.000                            

        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  ---   21   15  ---   11 |    26  ---  ---  ---  ---   39  ---   20   32  ---    21
   2  |    7   17    8   13   19    7   20    6   14   28    5 |    24   30   27   30   35   28   31   24   31   27    25
   3E |   28   26   12   18   36    9   22   14   15   16    7 |   110  118  118  109  121  114  119  113  112  115   112
   4  |    4   10    5   10   12    5    8    6    5   17    3 |    30   30   32   33   37   32   27   31   36   28    30
   5  |    6   19    5   13   34    5   25   11   12   23    5 |    20   32   23   24   44   21   31   18   24   26    21
   6  |   12   18    9   13   26    5   17   13   12   16    5 |    27   40   35   31   39   33   39   29   36   42    31
   7  |    8   26    9   10   22    8   24   18    9   18    5 |    23   33   26   25   40   22   29   26   28   28    22
   8  |   13   11    8    9   17    8   17   17    9   19    4 |    87   93   93   92   96   91   96   94  102   93    93
   9  |    4   12   10    9   15    4   12    6   12   12    3 |    21   23   22   26   27   18   22   21   21   21    19
  10  |    5   14    5   10   19    6   16   10   12   24    4 |    41   40   38   41   41   41   37   42   44   41    40
  11  |    7   19    8    7   27    6   21   14   13   15    4 |    34   39   33   34   46   31   37   38   34   33    32
  12  |    8   21   10    9   24    3   22   10   11   13    4 |    19   33   18   19   36   16   31   18   27   19    18
  13E |    6   17    6   10   27    7   23   10    9   15    4 |    18   28   21   17   40   16   26   21   22   23    17
  14E |    6   17    9   10   16    4   18    6   11   13    4 |    18   28   20   24   34   19   26   19   24   21    19
  15E |    7   21    9   11   31    5   29    9   24   14    5 |    30   36   35   36   32   33   35   34   36   34    32
  16  |    5   24    9   10   22    3   24   15    7   14    4 |    19   30   18   13   36   16   29   23   21   21    17
 X17  |    7  ---    6    7  ---    6   19    8    9  ---    4 |    14  ---   17   14  ---   13   23   13   20  ---    14
  18  |    6   23    9   10   20    4   27    7    7   16    4 |    22   36   25   24   37   23   35   22   23   22    22
  19  |    6   24    8    8   24    4   22   12    9   12    4 |    26   38   25   24   43   24   33   22   30   26    25
  20  |    8   21    7   14   25    5   22   10   15   20    5 |    24   29   22   25   34   21   30   27   32   25    22
  21  |    7   14    9   10   21    6   24   12   10   31    5 |    19   25   25   21   32   17   25   22   22   26    19
  22  |    4   14    7   10   26    4   21    9    8   13    3 |    24   33   28   28   44   25   34   26   26   22    25
  23E |    6   16    6   10   30    7   26   16    6   13    4 |    30   39   31   29   41   31   39   34   36   34    30
  24  |    8   13    7    9   13    4   15   10    9   19    4 |    37   39   38   41   39   37   42   41   44   40    39
 X25  |   20   23   23  ---  ---   10  ---   20   13  ---   10 |    31   36   45  ---  ---   36  ---   35   45  ---    35
  26E |    9   24   10    8   23    5   21   23   21   14    6 |    22   33   22   24   47   23   33   33   34   24    23
  27  |    5   12    9   11   16    3   13    7   16   27    4 |    19   20   21   24   28   17   21   20   22   31    18
  28  |    7   23   10   14   21    5   21   11    9   19    5 |    17   33   22   16   39   17   27   17   19   17    16
 X29  |    7   21    7    9   19    4   25   14    9  ---    5 |    26   36   22   24   38   25   32   31   28  ---    25
  30  |    6   15    6    9   17    5   12   12   12   23    4 |    20   26   21   19   29   19   22   26   26   31    20
  31  |    5   20    9    9   24    5   26   10   12   14    4 |    21   33   25   24   39   22   31   22   22   26    22
  32  |    4   16    8    7   28    5   19   11   11   12    4 |    21   25   20   20   35   17   23   23   23   21    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    8   11   23    6   21   12   12   18      |T   28   37   31   30   42   29   35   30   33   32    28
 WRMS |    7   19    8   11   21    5   20   10    9   18      |NE  26   34   28   27   39   26   32   28   31   29    26
 MEDI |    7   18    8   10   22    5   21   11   11   16      |MD  23   33   25   24   39   23   31   24   28   26    22

Table 3.1569.4   GPS week: 1569   Day: 4   MJD: 55231.000                            

        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  |    5  ---  ---  ---  ---   41  ---  ---  ---  ---    0 |    29  ---  ---  ---  ---   34  ---  ---  ---  ---    29
   2  |    5   12    8   11   22    8   18    5   10   27    4 |    19   25   24   26   31   22   27   20   23   22    19
   3E |   20   19    9   15   32   10   16   13   15   26    6 |   114  125  117  125  132  116  120  122  117  130   119
   4  |    6   10    7    9   19    6   10    8   11   17    3 |    24   24   30   28   29   27   24   26   29   24    25
   5  |    6   19   12   11   33    4   22   15   11   23    5 |    20   30   24   23   40   22   31   21   25   24    20
   6  |    8   17    6   10   25    6   15   14   10   15    4 |    24   39   26   31   36   26   37   24   27   37    27
   7  |    6   25    7   10   24    3   23   10    9   16    4 |    20   32   23   22   38   20   30   22   20   25    19
   8  |   10    9    7    9   15    4   10    7    8   11    3 |    40   43   43   39   53   43   46   44   41   45    40
   9  |    5   13    8    6   20    6    8    7    9   12    3 |    18   21   18   17   29   17   20   19   22   20    17
  10  |    5   13    9    9   18    5   11   14    8   23    4 |    31   25   29   28   25   29   27   35   33   28    28
  11  |    8   18    9    7   27    4   19   10    9   15    4 |    27   32   31   30   40   28   33   32   31   29    27
  12  |    7   22    8    8   28    3   20   11    7   12    4 |    18   30   19   17   37   19   31   19   20   19    18
  13E |    6   16    6   10   23    4   18   10   12   11    4 |    26   30   24   20   41   26   32   27   30   28    24
  14E |    6   19    8    9   25    5   22   10    5   13    4 |    21   25   23   21   34   22   33   21   23   19    20
  15E |    8   15    7    9   23    6   24   13    8   21    4 |    36   35   34   32   37   34   35   36   33   37    32
  16  |    6   24    6   10   25    4   21   13    7   14    4 |    19   33   20   19   34   21   32   22   20   21    20
  17  |    5   19    7    6   25    4   18    7    9    7    3 |    16   19   15   13   21   17   25   12   18   12    16
  18  |    6   23    9    9   27    6   23    8    9   17    4 |    22   31   23   21   39   21   33   21   22   19    20
  19  |    8   25   11    9   24    6   23   13    8   11    5 |    25   36   23   23   43   24   39   23   26   25    24
  20  |    7   18    9   13   25    5   19    9   12   20    4 |    21   28   20   24   32   24   31   25   18   23    19
 X21  |    6   18    7    8   23    7  ---   11    8  ---    4 |    20   25   21   20   30   18  ---   20   19  ---    18
  22  |    5   20    7   11   30    6   21    9    8   15    4 |    25   33   27   27   43   26   38   25   27   19    24
  23E |    8   16    7    9   33    5   26   20    8   12    5 |    46   48   49   49   61   48   51   54   46   46    47
  24  |    6   11    6    7   17    5   12    7    6   19    3 |    37   36   35   40   36   35   34   39   40   37    37
 X25  |   12   23   16  ---  ---    6  ---   17   21  ---    8 |    22   29   31  ---  ---   22  ---   25   35  ---    23
  26E |    8   26    9    5   27    6   20   23   20   13    6 |    22   33   25   23   44   25   37   33   32   19    24
  27  |    5   13    8    8   21    6    9   11   11   28    4 |    18   20   17   18   30   17   20   20   20   32    16
  28  |    7   23   11   14   27    4   17    9    8   15    4 |    17   33   18   18   40   19   28   17   15   16    15
 X29  |    7   21   12    7   22    4   18   12    8  ---    4 |    23   33   25   21   36   23   32   26   25  ---    23
  30  |    6   14    6    8   19    5   10   10    8   23    4 |    20   27   21   17   30   21   26   25   21   32    20
  31  |    5   20   10    5   27    4   19   10    8   13    4 |    20   31   24   19   41   23   33   23   26   25    22
  32  |    6   19    9    8   28    3   16    8   11   11    4 |    20   22   21   21   35   21   27   22   20   20    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   18    8    9   25    5   18   12   10   17      |T   26   33   28   27   39   27   34   29   29   29    26
 WRMS |    7   18    8    9   23    5   17   10    7   17      |NE  22   29   24   23   35   23   30   24   24   24    22
 MEDI |    6   19    8    9   25    5   18   10    9   15      |MD  22   31   24   22   36   23   32   24   25   24    22

Table 3.1569.5   GPS week: 1569   Day: 5   MJD: 55232.000                            

        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  |   26  ---  ---  ---  ---   48  ---   23   32  ---   19 |    41  ---  ---  ---  ---   46  ---   22   27  ---    26
   2  |    6   16    9   18   21    7   18    8   10   28    5 |    18   27   23   30   32   20   26   19   22   19    19
   3E |   14   19   10   14   28   10   18   17   19   16    5 |    92  105  103  105  111  103  100  103   95  108   100
   4  |    6   10    7   11   17    5   13    8    7   17    3 |    21   22   24   27   28   25   19   25   24   25    21
   5  |    6   21    8    8   23    5   24   15   13   25    5 |    16   28   16   16   37   16   28   15   21   24    14
   6  |   10   20    8    8   23    6   16   12    8   14    4 |    37   49   42   41   48   38   44   36   39   46    39
   7  |    7   23   10    8   23    6   25   10   11   18    4 |    15   26   16   16   35   14   25   16   20   18    13
   8  |    6   11    7    5   14    6   12    9   10   11    3 |    68   67   67   69   72   69   70   69   73   67    68
   9  |    6   12    8    6   18    4    8    9   12   12    3 |    21   21   17   19   27   18   20   18   21   18    17
  10  |    7   15    7    9   16    5   12   16   13   23    4 |    30   30   26   31   31   30   26   35   31   33    28
  11  |    9   18    7    4   30    6   22   12   10   22    4 |    21   28   22   22   33   19   26   24   23   27    19
  12  |    5   24    8   12   30    5   22   12    9   13    4 |    14   25   15   11   35   12   26   14   20   14    12
  13E |    7   15    4    7   20    5   21    7   10   12    3 |    12   23   16   10   35   12   25   16   17   16    11
  14E |    7   21    7    9   19    6   24   14    8   10    4 |    17   22   21   20   30   15   23   22   20   16    16
  15E |    7   27   12    9   18    4   23   13   11   17    5 |    28   34   31   36   36   31   32   32   32   32    29
  16  |    6   25   10    9   23    8   26   14    7   15    5 |    14   29   21   15   33   14   28   17   21   17    14
  17  |    5   22    9    7   25    6   18   10    8    9    4 |    15   22   15   11   16   13   20   11   15   10    13
  18  |    8   23    8   11   24    4   23    8    8   19    4 |    16   30   19   19   36   17   31   15   22   18    16
  19  |    8   30    9   10   28    7   24   13   10   13    5 |    21   34   18   14   36   16   30   16   27   17    17
  20  |    7   22   10   11   27    6   23   13   10   24    5 |    17   26   19   19   30   16   26   20   18   15    13
 X21  |    6   22   10    7   22    5  ---   15    7  ---    4 |    19   26   20   16   27   17  ---   18   21  ---    17
  22  |    6   21    7    8   27    6   21    8   11   17    4 |    20   32   23   20   41   19   32   21   25   17    20
  23E |    7   19    7   10   20    4   27   14    6   12    4 |    42   53   46   44   62   45   51   50   43   46    44
  24  |    5   15    7    7   16    5   10   10    8   19    3 |    26   26   26   26   21   25   21   27   30   20    24
 X25  |   13   19   17  ---  ---   14  ---   15   15  ---    7 |    28   42   34  ---  ---   36  ---   33   37  ---    31
  26E |    8   24   10    7   51    4   20   24   19   14    5 |    18   28   17   21   57   18   31   32   32   23    19
  27  |    6   13    9    7   20    5   10   16   14   27    4 |    21   23   16   20   27   18   21   20   22   29    17
  28  |    6   21   10   10   27    5   17   13    7   17    4 |     9   25   11   15   38   10   21   12   14   12     9
 X29  |    7   23   11    8   18    4   18   15    8  ---    5 |    14   26   14   18   31   12   22   17   17  ---    13
  30  |    6   16    7    6   23    4   12   12   10   26    4 |    14   17   12   16   26   11   18   17   18   30    12
  31  |    7   24    8    8   27    5   22   12   10   13    4 |    15   29   21   15   40   15   26   19   21   23    16
  32  |    4   18    9    7   31    6   15   11    9   11    3 |    13   17   18   14   29   11   16   14   16   15    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    8    9   25    6   20   13   11   18      |T   24   32   25   25   38   24   30   25   27   26    23
 WRMS |    6   20    8    9   22    5   18   11    8   16      |NE  21   28   21   20   33   20   26   21   24   22    19
 MEDI |    7   21    8    8   23    5   20   12   10   16      |MD  18   27   20   19   33   17   26   19   22   19    17

Table 3.1569.6   GPS week: 1569   Day: 6   MJD: 55233.000                            

        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  |   21  ---  ---  ---  ---   28  ---   30   21  ---   17 |    38  ---  ---  ---  ---   29  ---   16   39  ---    30
   2  |    7   15    8   14   21    5   18   10    7   27    4 |    24   31   31   34   36   27   33   26   31   28    27
   3E |    9   14    8   13   34    4   14   13   13   15    4 |    99  102  105  102  110  103  108  105  104  100   102
   4  |    8   11    8   10   14    5   10   14    9   18    4 |    28   32   37   36   35   33   32   38   35   32    32
   5  |    6   19   11    9   35    3   23   15    7   29    5 |    24   32   31   29   43   25   34   24   27   35    26
   6E |   30   18   13   17   26   12   18   15   12   23    7 |    37   42   43   42   47   35   41   30   38   42    36
   7  |   10   25    9   11   22    4   21   12    9   18    5 |    25   35   31   30   39   26   29   29   30   35    27
   8  |    7   11    5    9   12    5   11    6    8   10    3 |    63   64   64   63   62   62   62   62   69   64    63
   9  |    6   11    7    4   17    3    8   15    8   15    3 |    31   31   29   30   35   29   28   35   38   30    30
  10  |    5    9    7   10   16    3   12   13    4   23    3 |    39   37   40   42   41   38   38   39   41   45    39
  11  |    9   17    6    7   29    3   20   10    9   20    4 |    35   35   36   37   41   35   34   40   37   36    34
  12  |    9   20   10    9   27    4   22   16    8   12    4 |    25   33   24   22   38   23   33   24   33   23    25
  13E |    7   16    9   11   22    6   20    9   11   12    4 |    23   32   27   23   39   23   30   25   23   25    23
  14E |    7   16    8    9   14    4   20   19   10   12    4 |    24   31   26   28   31   27   30   29   29   24    26
  15E |    7   21    8   12   26    4   27   14   11   14    5 |    35   37   38   42   40   38   38   41   38   38    36
  16  |    8   17    7   10   23    5   24   16    9   15    4 |    21   29   25   22   36   23   31   27   27   26    23
  17  |    6   18    7    9   28    4   17   12    9    9    4 |    14   22   13   10   20   13   19   12   15   11    14
  18  |    6   18   10    8   22    3   22    8    8   21    4 |    25   35   27   29   39   26   35   26   30   28    26
  19  |    9   24   12   12   29    5   24   11   10   13    5 |    30   43   31   30   46   29   41   28   35   31    31
  20  |    7   19    9   10   27    5   23   14   11   26    5 |    25   31   27   31   33   28   30   33   31   28    26
  21  |    8   16    7    8   22    3   18   15    9   30    5 |    24   27   27   25   32   23   26   28   27   29    25
  22  |    6   16    9    7   26    4   20    9    9   18    4 |    26   37   32   33   43   28   36   31   31   28    29
  23E |    9   13    9   11   27    6   27   11   13   14    4 |    51   57   55   58   55   54   57   55   60   50    53
  24  |    8   11    8    5   17    4   12    9   10   19    3 |    31   32   35   36   30   32   28   35   37   29    33
 X25  |   23   25   19  ---  ---   16  ---   13   23  ---   10 |    39   41   50  ---  ---   39  ---   44   45  ---    41
  26E |    9   25    9    9   14    3   23   21   19   15    6 |    28   34   29   29   37   27   36   31   35   27    28
  27  |    7   12    7    6   18    3    9   19    9   28    4 |    27   28   26   27   33   25   25   33   34   35    26
  28  |    7   17    9    8   24    4   17   12    9   17    4 |    20   31   24   16   39   20   27   20   24   23    20
 X29  |   10   21   10    6   21    4   21   13   11  ---    5 |    28   37   25   25   35   27   35   30   35  ---    28
  30  |    7   14    9    6   18    3   15   11    8   26    4 |    25   28   27   23   30   23   26   27   33   35    25
  31  |    8   17    9    6   27    6   20   12   11   15    4 |    25   36   29   26   42   26   31   28   31   31    26
  32  |    8   17    9    5   31    4   18   12    7   16    4 |    24   26   25   29   35   25   23   30   29   28    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   17    9    9   24    5   19   13   10   19      |T   31   37   34   33   40   31   35   33   36   34    32
 WRMS |    8   17    9    9   22    4   18   12    9   18      |NE  28   33   31   29   37   28   32   30   33   31    29
 MEDI |    8   17    9    9   22    4   20   13    9   17      |MD  26   33   29   29   38   27   32   30   33   30    27



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 4.1569   GPS week: 1569   MJD: 55227.0-55233.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3054 |U    7     9    23 |U   15    17    52 |U    7     8    16 |
emr | emr 2926 |    12    12    31 |U   14    17    47 |     9     9    19 |
esa | esa 2962 |     9     9    27 |U   13    16    46 |     7     7    18 |
gfz | gfz 2817 |U   12    14    40 |U   15    17    65 |    11    13    29 |
grg | grg 2852 |    10     9    31 |U   14    17    48 |     9    12    21 |
igr | igr 2943 |     9    10    28 |    15    16    52 |     9     9    22 |
igs | igs 2944 |     9    11    30 |    14    17    51 |     8     8    18 |
jpl | jpl 2832 |U   10    12    32 |U   14    17    49 |U    8     7    19 |
mit | mit 3017 |U    9    11    32 |U   14    15    48 |U    8     8    20 |



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 5.1569.0   GPS week: 1569   Day: 0   MJD: 55227.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3057 |     6     8    18 |    10     9    41 |     8    10    14 |
emr | emr 2958 |     9     9    24 |     7    10    46 |    10    11    18 |
esa | esa 2976 |     7     7    22 |     7     8    35 |     7     7    15 |
gfz | gfz 2836 |     8    11    25 |     9    10    51 |    10     8    22 |
grg | grg 2880 |     6     7    14 |    12    14    52 |     9    14    15 |
igr | igr 2976 |     7     7    22 |     7    10    33 |     7     8    15 |
igs | igs 2974 |     7     7    19 |     8     9    38 |     7     8    14 |
jpl | jpl 2876 |     7     8    19 |     8     9    37 |     8     8    16 |
mit | mit 2976 |     8     8    26 |     8     8    34 |     6     6    18 |

Table 5.1569.1   GPS week: 1569   Day: 1   MJD: 55228.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3067 |     6    12    19 |     8    11    29 |     6     6    13 |
emr | emr 2957 |     9    14    26 |     9     9    26 |     9    11    20 |
esa | esa 2976 |     6     9    19 |     7     9    27 |     7     7    16 |
gfz | gfz 2829 |    13    15    35 |    10    16    46 |    10    14    26 |
grg | grg 2880 |     6     6    21 |     9    12    30 |     7    11    16 |
igr | igr 2972 |     8    11    28 |     9    13    33 |    11    14    23 |
igs | igs 2946 |     8    12    21 |     8    10    26 |     9     9    21 |
jpl | jpl 2876 |    10    13    31 |     8    10    28 |     7     8    17 |
mit | mit 3072 |    17    23    62 |     9     9    42 |     9    10    18 |

Table 5.1569.2   GPS week: 1569   Day: 2   MJD: 55229.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
emr | emr 2859 |     9    15    28 |     8    10    31 |    11     9    17 |
esa | esa 2880 |     8    11    24 |     8    10    24 |     8     6    15 |
gfz | gfz 2735 |     7    16    45 |    11    10    67 |    11    13    36 |
grg | grg 2784 |     9    11    30 |     7    10    31 |    12    12    15 |
igr | igr 2858 |     8    12    24 |     7    10    25 |     8     7    15 |
igs | igs 2849 |     8    13    31 |     8    10    32 |    10     7    15 |
jpl | jpl 2779 |     8    13    26 |     7    10    30 |    10     7    15 |
mit | mit 2880 |     8    12    28 |     7     8    28 |     9     8    16 |

Table 5.1569.3   GPS week: 1569   Day: 3   MJD: 55230.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3051 |     7    10    23 |    13    13    35 |     6     7    17 |
emr | emr 2861 |    19    21    37 |    14    15    44 |    10    10    20 |
esa | esa 2976 |     9    11    26 |    12    13    34 |     7     8    17 |
gfz | gfz 2825 |    14    11    42 |    14    16    70 |    14    21    40 |
grg | grg 2784 |    14    11    31 |    13    14    41 |     8    11    25 |
igr | igr 2961 |    10    15    23 |    16    12    57 |    15    18    39 |
igs | igs 3021 |    10    14    30 |    12    15    42 |     7     9    24 |
jpl | jpl 2875 |     9    15    27 |    13    15    42 |     9    10    19 |
mit | mit 3072 |     8    10    22 |    13    14    33 |     8     6    26 |

Table 5.1569.4   GPS week: 1569   Day: 4   MJD: 55231.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |     5     6    18 |    16    23    52 |     7    11    17 |
emr | emr 2945 |     8     8    24 |    17    29    58 |     8     8    21 |
esa | esa 2976 |     6     4    21 |    18    25    56 |     8     8    20 |
gfz | gfz 2828 |    10     8    29 |    16    27    62 |    10    11    23 |
grg | grg 2880 |     8     6    29 |    16    21    53 |     9    10    24 |
igr | igr 2954 |     5     5    18 |    18    27    58 |     7     7    20 |
igs | igs 2947 |     6     5    22 |    17    25    54 |     8     8    18 |
jpl | jpl 2775 |     7     7    21 |    18    28    61 |     7     8    21 |
mit | mit 2976 |     6     5    22 |    17    24    58 |     7     9    20 |

Table 5.1569.5   GPS week: 1569   Day: 5   MJD: 55232.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3059 |     8     5    22 |    24    26   106 |     9    10    17 |
emr | emr 2952 |    10     8    32 |    24    27    71 |    10     8    20 |
esa | esa 2976 |     9     7    28 |    23    27    98 |     8     9    22 |
gfz | gfz 2824 |    12    14    37 |    22    24    93 |    14    13    31 |
grg | grg 2880 |    11     7    36 |    22    28    81 |    11    13    29 |
igr | igr 2946 |     9     6    30 |    26    24    94 |     9     8    23 |
igs | igs 2943 |     9     8    32 |    26    27   112 |     8     8    18 |
jpl | jpl 2773 |     9     8    34 |    27    26    82 |     8     7    23 |
mit | mit 3072 |     8     7    27 |    23    21    76 |    10    10    19 |

Table 5.1569.6   GPS week: 1569   Day: 6   MJD: 55233.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3041 |    11    14    40 |    20    20    51 |     6     6    18 |
emr | emr 2953 |    19    14    46 |    19    20    53 |     8     7    20 |
esa | esa 2976 |    18    17    50 |    18    20    53 |     7     5    21 |
gfz | gfz 2843 |    17    23    67 |    23    16    67 |    10    11    27 |
grg | grg 2880 |    17    15    55 |    17    21    51 |    10    11    21 |
igr | igr 2937 |    18    17    52 |    19    20    62 |     7     6    18 |
igs | igs 2929 |    17    17    57 |    19    21    57 |     7     5    17 |
jpl | jpl 2870 |    18    18    63 |    19    22    67 |     7     5    19 |
mit | mit 3072 |    10    13    41 |    18    19    63 |     9     9    20 |


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 6.1569   GPS week: 1569   MJD: 55227.500-55233.500

                                                         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     -19      -3      66     -3 |       2     18
            |      12      15      64      91      7 |       4
emr   uuuuu |     -28       7     -94       1     -3 |      21     29
            |      25      16      90     108      8 |       2
esa   uuuuu |      -9     -16     130      39      0 |      -6     20
            |      12      14      76      42      4 |       3
gfz   uuuuu |      34      41     -29     -57      1 |       6     21
            |      15      18      44      57      8 |       3
grg   --xxx |      --      --      96     -25    -15 |      14     30
            |      --      --     151     109     23 |       3
igr   xxxxx |      23      34      -5     -48     -3 |       0     16
            |       9      16      67      63      6 |       2
irf   xxxxx |      -6      -4     -24       4      6 |       6     24
            |      16      15      56      70      9 |       4
jpl   uuuuu |      32     -58       8     106     -8 |     -14     22
            |      24      31     108     136     11 |       3
mit   uuuuu |      -5      -3     -83      26     14 |       7     26
            |      28      27     125     144     14 |       7
ngs   uuuuu |     -11     -32     -33     -99     -5 |      -7     16
            |      26      43      40     125      9 |       2
sio   uuuuu |     -24      73      17      49     17 |      24     36
            |      22      21     122     145     14 |       7


Table 7.1569.0   GPS week: 1569   Day: 0   MJD: 55227.500

                                                         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     -21       7      79      9 |      -2     16
emr   uuuuu |      16       5    -135     181    -14 |      24     30
esa   uuuuu |      12     -26     201     -35      4 |      -9     18
gfz   uuuuu |      12      63      27      -8      0 |       4     17
grg   --xxx |      --      --    -214     160    -38 |      15     26
igr   xxxxx |      16      29       5     -41      8 |      -1     14
irf   xxxxx |     -35     -20     -61     -99     -7 |       4     19
jpl   uuuuu |      23    -111       0     222      8 |     -16     24
mit   uuuuu |     -44     -19    -183    -179     -6 |       2     17
ngs   uuuuu |       7       2     -18      76      3 |      -7     16
sio   uuuuu |     -49      69    -111    -227     -3 |      18     27

Table 7.1569.1   GPS week: 1569   Day: 1   MJD: 55228.500

                                                         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     -20     -14     107      4 |      -4     17
emr   uuuuu |     -13       5    -248      48     -9 |      18     27
esa   uuuuu |      -9       2      80      65      4 |     -12     19
gfz   uuuuu |      45      40     -35     -22      7 |       1     17
grg   --xxx |      --      --     140     -45    -22 |       9     29
igr   xxxxx |      23      21     -10     -89     -3 |      -4     13
irf   xxxxx |      -8     -20      66     -17      8 |      -1     19
jpl   uuuuu |      18     -51     -18     125    -13 |     -19     26
mit   uuuuu |     -23     -25      64     -35     12 |      -3     18
ngs   uuuuu |      -5     -24    -104    -139    -19 |     -10     18
sio   uuuuu |     -35      45     188      -4     11 |      14     25

Table 7.1569.2   GPS week: 1569   Day: 2   MJD: 55229.500

                                                         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 |     -17     -47     -29     171     -2 |       2     20
emr   uuuuu |     -17       6     -55      -4    -11 |      21     30
esa   uuuuu |      -4     -17     -10      77     -4 |      -6     21
gfz   uuuuu |      31      56     -97     -69      1 |       6     23
grg   --xxx |      --      --     206     -52      9 |      11     30
igr   xxxxx |      32       9     -80     -15     -2 |       1     17
irf   xxxxx |     -10       9      35     -17     14 |       4     24
jpl   uuuuu |      35     -44     -43      95    -22 |     -15     24
mit   uuuuu |     -25      25      91     -59     26 |       2     24
ngs   uuuuu |       5     -80      13     -73     -4 |      -8     18
sio   uuuuu |     -37      81     162      55     24 |      20     33

Table 7.1569.3   GPS week: 1569   Day: 3   MJD: 55230.500

                                                         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     -12     -20    -103     -9 |       7     18
emr   uuuuu |     -35     -18      47      61     -3 |      23     31
esa   uuuuu |     -14     -39     116      27     -8 |      -2     19
gfz   uuuuu |      23      57     -61     -68    -15 |      11     23
grg   --xxx |      --      --      98      19     14 |      16     32
igr   xxxxx |      33      60     -34      33    -12 |       4     16
irf   xxxxx |      -3      12     -43     -17     15 |       9     26
jpl   uuuuu |      51     -23    -113     328     -6 |     -11     17
mit   uuuuu |     -10      31     -70     -12     30 |       9     27
ngs   uuuuu |      19     -67     -32    -170      2 |      -5     15
sio   uuuuu |     -19      96      26      22     34 |      26     38

Table 7.1569.4   GPS week: 1569   Day: 4   MJD: 55231.500

                                                         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      -8      86      32     -8 |       5     18
emr   uuuuu |     -53       9    -107     -59      6 |      20     28
esa   uuuuu |     -12      -5     153      85      0 |      -4     19
gfz   uuuuu |      56      26     -44    -118     -1 |       8     22
grg   --xxx |      --      --      35    -172    -36 |      16     32
igr   xxxxx |      10      34     -38    -103     -4 |       2     16
irf   xxxxx |      -3     -15     -18       5     13 |       8     25
jpl   uuuuu |      75     -88     -80      53      6 |     -12     18
mit   uuuuu |       9     -29     -66      91     25 |      10     29
ngs   uuuuu |     -44      22       6    -118    -16 |      -6     15
sio   uuuuu |     -29      48      17     113     30 |      28     40

Table 7.1569.5   GPS week: 1569   Day: 5   MJD: 55232.500

                                                         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 |       7     -26    -110     140     -6 |       5     18
emr   uuuuu |     -37      38    -106    -155      7 |      20     28
esa   uuuuu |      -6     -11     209      41      0 |      -4     20
gfz   uuuuu |      42      28       1    -133      5 |       8     22
grg   --xxx |      --      --     202    -118      3 |      16     32
igr   xxxxx |      23      42     134    -135     -3 |       1     16
irf   xxxxx |       6      12     -86      43      6 |      11     27
jpl   uuuuu |      18     -56     143     -72    -17 |     -12     18
mit   uuuuu |      20      23    -196     111     14 |      14     33
ngs   uuuuu |     -48     -79     -57      30      2 |      -6     15
sio   uuuuu |     -11      98    -123     162     19 |      32     44

Table 7.1569.6   GPS week: 1569   Day: 6   MJD: 55233.500

                                                         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      -1      61      36     -7 |       2     20
emr   uuuuu |     -57       5     -55     -65      1 |      18     28
esa   uuuuu |     -29     -14     161      14      3 |      -6     22
gfz   uuuuu |      33      15      10      21     11 |       5     22
grg   --xxx |      --      --     203      32    -34 |      14     32
igr   xxxxx |      29      43      -8      14     -6 |      -1     18
irf   xxxxx |      15     -10     -61     131     -7 |       9     28
jpl   uuuuu |       5     -31     169      -9    -13 |     -16     25
mit   uuuuu |      37     -25    -217     267     -4 |      14     33
ngs   uuuuu |      -6       3     -41    -297     -2 |      -9     18
sio   uuuuu |      17      70     -42     221      4 |      31     44



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