[IGSREPORT-18526] Wk 1579 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Apr 29 04:26:41 PDT 2010


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IGS Electronic Report   29 Apr 04:27:00 PDT 2010      Message Number 18526
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1579   (Apr 11, 2010 - Apr 17, 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 (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

  Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions.  AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 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:

igs1579[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1579[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1579[0-6].cls  IGS GPS clock combination summary report.
igs15797.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15797.sum      Complete report.

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

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

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1478, a new solution from CNES/GRGS (GRG) is included for
    evaluation and statistics only.

 3. The following centre clock solutions, which provide broadcast clock
    corrections, were excluded from the combination but kept in the combination
    statistics:
             -> Centre: NGS 

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  ALL   | 1
                0  |  COD   | 4 4 27
                0  |  EMR   | 21 24 21 24 WTZR
                0  |  ESA   | 4 4 27 DGAR
                0  |  GFZ   | 13 21 KARR MATE NTUS PERT SUTH YAR2
                0  |  GRG   | DGAR WTZR
                0  |  JPL   | 4 24
                0  |  MIT   | 9 24 9 24 PERT SHAO
                0  |  NGS   | 1
                1  |  ALL   | 1
                1  |  COD   | BRAZ DGAR
                1  |  EMR   | 4 8 24 27 4 8 24 27 HARB WTZR HARB WTZR
                1  |  ESA   | DGAR
                1  |  GFZ   | 8 BAKE GUAT METS MIZU SCUB SUTH UNSA
                1  |  GRG   | DGAR ONSA
                1  |  JPL   | 4 24 27 HARB
                1  |  MIT   | 4 24 27 4 24 27 IRKJ
                1  |  NGS   | 1
                2  |  ALL   | 1 1
                2  |  COD   | CAS1 DGAR KOUR
                2  |  EMR   | 4 9 24 27 4 9 24 27 WTZR MATE ONSA WTZR
                2  |  ESA   | CAS1 DGAR UNSA
                2  |  GFZ   | HARB IRKT KOUR MDVJ ONSA SUTH
                2  |  GRG   | DGAR WTZR
                2  |  JPL   | 4 9 24 27
                2  |  MIT   | 4 10 11 23 24 27 4 11 21 23 24 27 28 WTZR CAS1 HARB
                2  |  MIT   | NYA1 TRO1
                3  |  ALL   | 1
                3  |  COD   | DGAR
                3  |  EMR   | 4 4 WTZR
                3  |  ESA   | DGAR
                3  |  GFZ   | SUTH
                3  |  GRG   | DGAR ONSA
                3  |  JPL   | 4
                3  |  MIT   | 4 4
                3  |  NGS   | 1
                4  |  EMR   | 4 4 WTZR
                4  |  ESA   | METS YELL DGAR METS YELL
                4  |  GFZ   | 21 CRO1 RIOP SUTH UNSA
                4  |  GRG   | DGAR ONSA
                4  |  JPL   | 4 8 AREQ
                4  |  MIT   | 4 21 4 21 YELL YELL
                4  |  NGS   | 1
                5  |  COD   | ARTU DGAR PDEL
                5  |  EMR   | 4 4 WTZR
                5  |  ESA   | DGAR
                5  |  GFZ   | 27 SUTH UNSA
                5  |  GRG   | DGAR SPT0 ULAB
                5  |  JPL   | 4 9 27
                5  |  MIT   | 4 8 10 24 26 27 4 8 24 26 27 HARB HARB PDEL
                5  |  NGS   | 1
                6  |  ALL   | 1 1
                6  |  EMR   | 4 4 WTZR WTZR
                6  |  ESA   | DGAR
                6  |  GFZ   | SFER SUTH
                6  |  GRG   | DGAR SPT0 ULAB
                6  |  JPL   | 4 9 24 27
                6  |  MIT   | 4 8 24 4 8 24 DAEJ MAW1

 5. The following orbit solutions were excluded from the combination because 
    they were biasing the weighted average (generally indicated by long arc RMS).
    They were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                0  |  SIO   | ALL (high Transformation - See Table 2)
                1  |  SIO   | ALL (high Transformation - See Table 2)
                2  |  SIO   | ALL (high Transformation - See Table 2)
                3  |  SIO   | ALL (high Transformation - See Table 2)
                4  |  SIO   | ALL (high Transformation - See Table 2)
                5  |  SIO   | ALL (high Transformation - See Table 2)
                6  |  SIO   | ALL (high Transformation - See Table 2)

 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 G01 |    |    |    |  4 |    |    |    |

 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  |     .4     .9     .6     -15     -8     -6     .0 
       EMR  |    3.5   -2.2    2.6      13      7     -6     .20
       ESA  |    2.7    2.0   -1.8      51     14    -54     .17
       GFZ  |   -1.2     .9     .3     -12     42    -88     .29
       GRG  |    1.0    8.9    6.5      16     41     44     .73
       JPL  |    1.4    1.2     .6      -1    -26     -3     .50
       MIT  |    8.3   -7.3    6.2      -8     24    -34    -.01
       NGS  |    2.2   -7.9   -3.8    -127    -61     38     .20
       SIO  |    6.7    1.7   -7.7     -27    251   -590     .31


 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 1.1579.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1579.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 2.1579.[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 3.1579.[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 5.1579.0-6).

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 1579 summary.                       (Apr 11, 2010 - Apr 17, 2010)

Table 1.1579.a   GPS week: 1579   MJD: 55297.000-55303.000

         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|    0     0     0     1    18    11  -.24   10    8 |    -406    -262     21     72
        |    0     0     0    13    15    15   .01           |     381     484
emr   87|    0    -1     1   -47    15    11   .43   20   20 |    -106    -436     21     93
        |    2     1     1    17    22    20   .02           |    1857    1045
esa  131|    1     1    -1  -133   -43   -38   .24    9    9 |    -113    -708     16     91
        |    0     0     1    15    14    18   .03           |    1075    1497
gfz  197|    0     0     2   -16  -101     4  -.09   12   12 |     105     101     22    103
        |    0     0     2    38    56    12   .03           |     388     500
grg  107|   -1     1     2   -76   -49    44   .87   25   23 |    -119     131     67    213
        |    2     0     2    67    31     7   .04           |     261     466
igr  n/a|    0     0     0   -22    13     6   .01    6    5 |    5362   -1297     19     67
        |    0     0     0    18    22    17   .03           |    3495    1135
jpl  122|   -1     1    -1   -37    51    59   .47   21   21 |    1725    -418     20    120
        |    1     0     2    18    15    48   .03           |    1569    1130
mit  271|    1    -2     0    -8   -32     0  -.27   14   12 |  -14896     731     27    170
        |    0     0     1    21    19     8   .02           |    1830    1363
ngs  214|    0    -1     0   246   126    -8  -.20   15    8 |   14366   -1878   1991   3620
        |    1     1     1    26    29     8   .02           |    2242    2808
sio  261|    0     3     6    49  -503  -576  -.09   22   22 |     ---     ---    ---    ---
        |    1     0     1    19    24    10   .04           |     ---     ---


Table 1.1579.b   GPS week : 1579   MJD: 55297.000-55303.000   

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



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 2.1579.0   GPS week: 1579   Day: 0   MJD: 55297.000                            

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    -2     5     8  -.23    8    8 |    -279    -476     20     82
        |                     11     6                       |
emr   87|   -6     0     0   -68    44    37   .45   22   21 |    2668     -99     12     82
        |                     -5   -46                       |
esa  131|    2     1     0  -152   -38   -38   .22    8    8 |    -208   -2244     11     91
        |                     60    31                       |
gfz  197|    1     0     0    33  -134     1  -.13   12   12 |     329    -373     21     87
        |                    -42    49                       |
grg  107|    1     0     5  -149   -74    52   .91   26   25 |    -128     253     64    206
        |                    151    20                       |
igr  n/a|    0     0     0   -27    13    20   .05    8    7 |   10693    -977     22     68
        |                    -10    12                       |
jpl  122|   -2     2    -3   -37    66    -2   .49   21   20 |    3952     199     17    114
        |                     11     4                       |
mit  271|    1    -2     0     1   -29    16  -.26   14   13 |  -13492    1375     25    174
        |                    -14    15                       |
ngs  214|   -1    -2     1   233   133    -4  -.20   13    8 |   14430   -4994   1907   3519
        |                     27    28                       |
sio  261|    0     2     6    50  -475  -562  -.02   25   24 |     ---     ---    ---    ---
        |                   -120   263                       |

Table 2.1579.1   GPS week: 1579   Day: 1   MJD: 55298.000                            

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     5     9    11  -.24    8    7 |   -1173     778     20     80
        |                     33    31                       |
emr   87|    0     0     5   -63    17   -12   .44   19   19 |    2076   -1328     16     98
        |                    -11   -58                       |
esa  131|    2     1     0  -127   -29   -34   .28   10    9 |     957   -2496     11     72
        |                     48     8                       |
gfz  197|    0     0    -1   -25  -145     9  -.05   12   12 |    -707    1111     22    100
        |                    -17    21                       |
grg  107|    1     0     2   -88    -5    35   .90   24   22 |    -665     941     57    201
        |                     28  -161                       |
igr  n/a|    0     0     0   -45    14    27   .04    6    5 |    9226   -2512     18     62
        |                    -21   -28                       |
jpl  122|   -1     0     2   -62    35    55   .47   21   21 |    3687   -1382     19    116
        |                     27   -30                       |
mit  271|    0    -3     0    12   -56     0  -.27   13   12 |  -13801    2184     23    158
        |                    -10    30                       |
ngs  214|   -1     0    -2   213   150    -6  -.17   12    7 |   12276     659   1852   3845
        |                     46    20                       |
sio  261|    0     2     7    73  -501  -572  -.06   23   23 |     ---     ---    ---    ---
        |                   -128   262                       |

Table 2.1579.2   GPS week: 1579   Day: 2   MJD: 55299.000                            

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    19    45    28  -.24    8    7 |    -371    -522     21     64
        |                     49     8                       |
emr   87|    1    -2     2   -41    12    -6   .44   20   20 |     169    -319     19     93
        |                    -25    -8                       |
esa  131|    1     1    -1  -141   -46   -27   .28   10    9 |    1429     201     12     80
        |                     68    86                       |
gfz  197|    0     0     1   -59  -169     5  -.08   11   11 |     413     -80     22     97
        |                    -32    52                       |
grg  107|   -2     0     6   -20   -28    55   .90   26   22 |    -120     193     83    240
        |                    -46   -95                       |
igr  n/a|    0     0    -1   -26    47     0   .02    6    5 |    6284   -1425     18     69
        |                     -1    24                       |
jpl  122|    0     1    -2   -55    46    47   .50   21   21 |    1922    -323     17    118
        |                     40     7                       |
mit  271|    1    -2    -1    23   -14    -3  -.26   14   12 |  -11864   -2069     29    191
        |                    -16    18                       |
ngs  214|   -3     0     0   258   149   -20  -.20   15    8 |   10472    2967   1854   3817
        |                     28    14                       |
sio  261|    1     3     4    67  -478  -570  -.08   22   23 |     ---     ---    ---    ---
        |                   -110   256                       |

Table 2.1579.3   GPS week: 1579   Day: 3   MJD: 55300.000                            

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    -1    10     7     5  -.27   10    9 |    -113    -420     25     86
        |                     55    19                       |
emr   87|    0    -3    -1   -33   -12    38   .44   19   19 |   -1018    -432     30    101
        |                    -60    -8                       |
esa  131|    1     1     0  -139   -29   -65   .23    9    9 |   -1830    1604     22    102
        |                     27    65                       |
gfz  197|    0     0     4   -68   -44    22  -.08   12   12 |     319     -17     23     97
        |                    -61    46                       |
grg  107|    0     1     2   -28   -58    44   .82   23   22 |    -130     228     57    197
        |                    -47   -65                       |
igr  n/a|    0     0     0   -24     5    20  -.00    5    5 |    4206   -1116     19     71
        |                    -22    -5                       |
jpl  122|   -2     1    -2    -8    40    62   .48   22   22 |     846     -67     25    127
        |                    -21   -34                       |
mit  271|    1     0    -1   -31   -27    -5  -.32   15   13 |  -16193    1024     35    193
        |                      0    24                       |
ngs  214|    1     0    -1   293    89    -1  -.18   16    9 |   16315   -2742   2210   3816
        |                     48     9                       |
sio  261|   -1     2     4    47  -514  -590  -.10   21   20 |     ---     ---    ---    ---
        |                   -123   274                       |

Table 2.1579.4   GPS week: 1579   Day: 4   MJD: 55301.000                            

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     1    16    30  -.25   11   10 |     -25    -641     22     66
        |                     21    29                       |
emr   87|    0     0     2   -19     0     7   .44   19   19 |   -2382    1222     29     93
        |                    -66   -31                       |
esa  131|    1     1    -1  -140   -70   -29   .24   10   10 |      -4   -1700     23     95
        |                      2    55                       |
gfz  197|    0     0     3     7   -42   -18  -.13   13   13 |     -31     301     27    151
        |                    -92    33                       |
grg  107|   -1     2     0   -94   -71    44   .84   25   24 |      53    -155     76    206
        |                     32   -30                       |
igr  n/a|    0     0     0   -26   -19   -18  -.01    6    5 |    2405     529     21     63
        |                    -38    -3                       |
jpl  122|   -2     0    -1   -43    53    34   .46   21   21 |     -11    1267     26    134
        |                      9   -31                       |
mit  271|    0    -1     0   -29    -7     3  -.25   12   11 |  -16484    1310     29    154
        |                     -1    12                       |
ngs  214|   -1     0     0   252    86   -11  -.23   16   10 |   15394   -1833   2063   3268
        |                     87    57                       |
sio  261|   -1     4     7    33  -500  -588  -.14   21   21 |     ---     ---    ---    ---
        |                   -113   279                       |

Table 2.1579.5   GPS week: 1579   Day: 5   MJD: 55302.000                            

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   -25    35   -17  -.23   11    9 |    -311    -423     24     68
        |                     47   -28                       |
emr   87|    0    -1     1   -55    45    16   .41   19   19 |    -932     -18     22     99
        |                    -38   -32                       |
esa  131|    1     2    -1  -128   -36   -59   .24    9    9 |    -699     103     20    101
        |                     16    31                       |
gfz  197|    0     0     3    17  -135     6  -.06   10   10 |     303      84     21    102
        |                    -71    32                       |
grg  107|   -3     1     2  -165   -18    42   .84   26   25 |      33      57     65    234
        |                    132   -97                       |
igr  n/a|    0     0    -1   -19    32     9  -.03    5    5 |    3088    -721     21     74
        |                    -28    -4                       |
jpl  122|    1     0     0   -33    78   157   .45   20   20 |    1377    -363     19    118
        |                     38    15                       |
mit  271|    0    -1     0    -9   -59     0  -.28   14   12 |  -16099     231     21    155
        |                     -6    23                       |
ngs  214|    1    -1     0   224   157     1  -.21   16    6 |   16691   -2891   2016   3710
        |                     82   -91                       |
sio  261|   -2     4     6    52  -548  -569  -.14   20   22 |     ---     ---    ---    ---
        |                    -99   291                       |

Table 2.1579.6   GPS week: 1579   Day: 6   MJD: 55303.000                            

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     4     7    11  -.24   10    9 |    -575    -132     20     63
        |                     24    29                       |
emr   87|    1     0     2   -51    -2    -1   .38   20   20 |   -1325   -2083     25     88
        |                    -22   -18                       |
esa  131|    1     3    -2  -105   -50   -12   .22    9    8 |    -442    -426     19     98
        |                     39    67                       |
gfz  197|   -1     0     2   -21   -38     2  -.10   12   12 |     109    -315     21     91
        |                    -35    51                       |
grg  107|   -4     2     2    11   -89    38   .90   27   22 |     122    -598     68    207
        |                   -105    22                       |
igr  n/a|    0     0    -1    14    -1   -13  -.02    6    5 |    1637   -2859     19     64
        |                    -16   -17                       |
jpl  122|    0     2    -1   -20    41    62   .42   22   21 |     305   -2258     19    118
        |                      2   -16                       |
mit  271|    1    -3     0   -24   -31    -7  -.25   13   12 |  -16341    1067     29    169
        |                    -18    14                       |
ngs  214|   -1    -3     0   249   119   -18  -.23   15    9 |   14984   -4313   2036   3366
        |                     18   -23                       |
sio  261|   -2     4     7    18  -509  -579  -.10   22   23 |     ---     ---    ---    ---
        |                    -90   284                       |

       
       
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 3.1579.0   GPS week: 1579   Day: 0   MJD: 55297.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   19  ---  ---  ---  ---   28  ---   19   35  ---   18 |    98  ---  ---  ---  ---  105  ---   98  109  ---   102
   2E |    9   19    6   10  ---    6   29   10    6   22    5 |    28   35   29   29  ---   26   34   24   25   29    27
   3  |    8   16    6    8   15    7   15    8   12   17    4 |    20   26   25   23   28   22   22   23   24   26    21
   4E |   12   15   12   16   21    6   19   23   17   22    6 |    21   29   24   21   32   23   29   25   25   22    22
   5  |    8   19    7   15   29    8   23   14   11   22    5 |    24   32   22   29   37   22   31   25   28   26    23
   6  |    7   16    6    8   16    7   16    9    7   17    3 |    20   23   26   25   28   22   19   24   24   26    22
   7E |    6   20    8   12   18    6   20    9   11   14    4 |    15   25   14   14   24   15   21   15   27   16    15
   8E |   12   27    7   13   25    8   19   19   15   17    6 |    21   34   19   24   24   20   23   21   28   19    20
  X9E |   25  ---   19  ---   28   21  ---   34  ---  ---   18 |    15  ---   45  ---   33   37  ---   38  ---  ---    29
  10  |    7   14    4   15   17    6   11   15    8   22    4 |    27   28   33   29   38   30   33   27   35   31    28
  11E |    6   20    8   12   19    8   18   16   10   26    5 |    19   31   25   22   38   24   28   25   27   18    22
  12  |    9   19    8    8   22    9   18   11   10   32    4 |    13   26   17   17   29   14   22   18   14   21    14
  13  |    6   20    7   11   41    9   24    9    7   19    4 |    13   26   17   15   45   13   28   17   17   13    13
  14  |    8   25    9   10   25    8   23   12   10   22    5 |    17   31   22   20   40   20   29   23   21   16    19
  15  |    6   18    9   11   34   11   25   19   14   36    5 |    13   26   22   19   36   16   27   24   23   28    16
  16  |   11   21    6    9   24    6   23   14   10   28    5 |    13   27   19   18   31   15   28   19   14   22    15
  17  |    8   21   11   12   28    8   22   11   12   36    5 |    21   33   18   22   37   23   36   23   22   33    21
  18  |    8   25    8   13   31    6   25   15    9   29    5 |    20   38   27   26   41   24   35   28   25   30    23
  19  |    9   29    9   10   26   10   27   10   16   26    6 |    29   41   25   23   36   28   40   28   29   30    27
  20  |    7   23   11   12   34    9   24   17    8   37    5 |    20   28   24   27   33   20   27   25   24   23    21
  21E |    7   23    9   11   25    5   25   16   12   23    5 |    39   41   33   38   37   35   39   38   34   39    35
  22  |    6   23    8    8   31    8   26   16    9   31    5 |    21   35   25   23   43   23   35   28   24   32    22
  23  |    7   23    7   13   38    9   26   12    9   24    5 |    16   27   15   18   41   14   27   18   19   13    13
  24E |   15   18   14   16   19   15   19   24   33   26    8 |   135  130  135  135  126  137  127  134  144  131   134
  26  |    6   15    6    7   25    6   12   15    8   19    3 |    10   18   14    8   20   10   15   18   15   11    10
  27E |    9   54   10   18   21   12   17   13   23   17    8 |    13   48   16   18   27   14   23   14   25   14    14
  28  |    5   20   10   11   28    8   21   16   10   32    5 |    18   32   28   25   35   21   32   24   16   23    21
  29  |    8   19    8   10   22    6   23   10   11  ---    5 |    29   38   26   27   36   30   40   32   32  ---    28
  30  |    7   14    6    8   16    6   12   12    9   21    3 |    27   26   27   26   30   24   23   28   26   23    26
  31E |    6   25    6    9   24    8   23   10   10   24    5 |    29   47   33   28   46   33   43   33   27   33    31
  32  |    7   18    5   11   21    6   17   10    8   24    4 |    19   20   21   25   26   18   18   24   22   15    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   22    8   12   26    8   21   14   13   25      |T   26   34   27   26   37   28   32   30   30   27    27
 WRMS |    8   21    8   12   25    7   20   13    8   24      |NE  23   29   22   22   34   24   28   27   26   23    24
 MEDI |    8   20    8   11   25    8   22   14   10   23      |MD  20   31   24   23   36   22   28   24   25   23    22

Table 3.1579.1   GPS week: 1579   Day: 1   MJD: 55298.000                            

        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  ---   18   29  ---   15 |    95  ---  ---  ---  ---  104  ---  100  105  ---   101
   2E |    7   18    7    9   18    4   24   12    8   17    4 |    25   28   26   24   28   21   27   25   25   23    22
   3  |    6   10    8   10   13    4   13    8   10   18    3 |    15   23   22   19   27   16   22   16   27   22    17
   4E |   10   23   14   19   17    7   18   15   19   19    6 |    24   33   25   27   35   22   27   25   29   19    21
   5  |    6   19    8   14   26    5   22   14   11   22    5 |    30   36   30   36   42   28   35   32   31   30    29
   6  |    6   12    7   10   13    4   14    9    9   16    3 |    15   22   21   20   28   15   20   17   25   21    16
   7E |    7   18    7   13   18    4   19    7    7   13    4 |    16   23   17   18   25   14   20   14   22   13    15
   8E |   14   24   12   12   14    6   15   19   10   19    6 |    21   31   21   24   22   21   22   20   28   17    20
  X9E |   21  ---   20  ---   24   15  ---   26  ---  ---   15 |    14  ---   37  ---   37   24  ---   34  ---  ---    23
  10  |    7   13    4   10   20    3   13   11    7   21    3 |    19   23   25   26   30   24   26   24   27   26    22
  11E |    7   18    8    8   38    6   16   13   10   22    4 |    14   26   20   17   37   17   22   21   22   13    16
  12  |    7   20    9   12   21    5   19   13    9   31    5 |    13   27   17   19   29   15   23   17   17   16    13
  13  |    8   20   11   15   37    5   26   12    8   20    5 |    15   25   18   20   41   15   26   16   20   10    14
  14  |    7   16   10   11   28    5   23   15   12   18    5 |    15   24   20   20   38   16   26   17   20   14    15
  15  |    7   21    8   14   30    6   24   15   10   31    5 |    16   28   19   22   36   18   26   21   22   25    16
  16  |    7   21    8    9   22    5   25   15    8   28    5 |    12   24   17   12   33   10   27   13   19   15    12
  17  |    7   17   11   13   25    4   23    8   12   34    5 |    16   25   15   19   31   15   28   14   18   29    14
  18  |    9   22   11   15   28    5   26   14   10   27    5 |    16   30   20   26   34   17   28   18   22   24    17
  19  |    7   22   10   11   23    6   25   10    9   25    5 |    23   31   21   20   30   19   31   24   30   25    21
  20  |    9   24   12   11   31    4   24   16   12   28    6 |    19   29   21   25   32   18   26   23   28   19    19
  21E |    7   19    9   11   19    4   27   12    9   22    5 |    32   32   27   30   37   28   34   31   32   34    28
  22  |    5   18   11    8   32    6   22   14   11   29    5 |    17   29   23   19   38   16   27   20   22   23    17
  23  |    8   22    9   12   31    5   27   14    6   24    5 |    19   25   19   22   40   16   27   19   23   13    17
  24E |   10   18   23   15   21   15   21   21   37   30    9 |    88   81   87   81   77   84   79   83   91   76    83
  26  |    4   13    5    7   18    4   12   11    5   18    3 |    11   16   13   14   21    9   17   15   18   12    11
  27E |    7   19   11   14   32    6   15   11   19    9    5 |    11   26   15   14   35   12   22   14   29   10    11
  28  |    5   20   10   10   24    5   24   13    8   30    5 |    15   28   18   14   32   14   28   19   21   19    15
  29  |    6   19    8   11   22    4   22   16   10  ---    5 |    20   26   16   16   26   17   26   22   26  ---    17
  30  |    6   12    7    9   17    5   14   13    7   21    3 |    20   18   20   18   23   17   16   21   24   16    18
  31E |    6   22   12   10   19    5   17   11    8   17    4 |    36   48   42   38   47   41   45   40   41   43    38
  32  |    9   16   11   10   21    7   20   11   11   23    4 |    16   19   21   23   24   15   17   23   21   17    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19   10   12   24    6   21   13   12   23      |T   23   28   23   23   33   23   27   25   29   22    23
 WRMS |    7   19    9   12   22    5   21   12    7   23      |NE  20   25   19   20   31   20   25   23   26   19    20
 MEDI |    7   19    9   11   22    5   22   13   10   22      |MD  16   26   20   20   32   17   26   21   24   19    17

Table 3.1579.2   GPS week: 1579   Day: 2   MJD: 55299.000                            

        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  ---  ---  ---  ---   18  ---   22   14  ---   11 |    99  ---  ---  ---  ---  102  ---   98  103  ---    99
   2E |    7   18    9   10   22    4   24   17   11   19    5 |    25   30   28   22   28   22   28   22   29   23    22
   3  |    8   11    8   10   14    4   15    8    9   16    4 |    15   20   25   22   30   18   20   15   26   22    18
   4E |   10   17   11   16   20    4   16   15   22   23    6 |    20   28   21   20   34   17   26   21   31   20    18
   5  |    7   19   10   11   30   10   22   10    6   22    5 |    22   31   28   22   39   22   31   26   27   24    21
   6  |    7   12    9    9   14    3   15    8    8   14    4 |    15   18   24   23   30   16   18   15   26   19    18
   7E |    5   24    8   12   14    6   20    9   10   14    5 |    25   29   22   25   27   23   27   24   32   22    23
   8E |   15   23    9   16   20    8   16   20   16   20    6 |    22   30   22   25   22   21   24   21   35   19    21
  X9E |   12   36   14  ---   28   11   17   16   19   18    8 |    16   43   31  ---   46   24   31   32   34   17    23
  10  |    6   11    6    8   22    4   10    9    7   19    3 |    17   17   21   18   28   16   20   18   23   22    16
  11E |    7   18    7   10   39    7   17   11   13   19    4 |    15   25   21   19   42   21   23   24   27   20    18
  12  |    8   21    7   10   21    5   22   16   10   30    5 |    11   27   18   22   29   16   26   19   19   18    15
  13  |    8   22   10   13   43    7   27   12    9   18    5 |    15   25   21   16   43   13   25   17   23   10    13
  14  |    8   20   12   11   29    8   24   19   13   17    6 |    16   24   20   22   35   19   29   22   27   17    18
  15  |    8   19   10    8   29    4   21   12    8   30    5 |    16   27   22   19   36   17   27   21   21   22    17
  16  |    8   21    8   11   19    6   22   14    7   24    5 |    14   24   18   20   33   15   26   19   17   16    13
  17  |    6   22   10   11   26    5   24   10   10   35    5 |    17   31   14   19   33   16   32   16   18   28    15
  18  |    7   23   10   11   29    4   23   12   10   27    5 |    16   32   20   23   35   17   29   19   24   24    17
  19  |    8   22   11   11   23    8   27    9   13   25    5 |    20   28   15   13   26   16   30   21   23   21    16
  20  |    6   25   10   13   51    6   25   14    9   24    5 |    19   29   24   22   46   18   25   25   24   21    18
  21E |    8   20    9    6   21    4   25   13   18   12    5 |    25   27   24   24   29   22   30   24   31   22    22
  22  |    6   22    8    9   32    4   24   12    9   21    5 |    16   28   20   19   37   17   29   22   26   22    18
  23  |    9   25   11   12   31    6   30   14   11   24    6 |    16   26   21   14   36   12   27   16   23   12    13
  24E |   16   23   25   16   21   12   26   29   53   22   11 |   115  110  110  111  104  115  112  113  134  109   112
  26  |    6   12    8    8   17    4   11   12    8   16    3 |    14   14   16   13   23   12   18   15   18   13    11
  27E |    7   21   12   16   23    6   16   11   22   13    6 |    12   26   19   15   33   14   23   17   31   11    12
  28  |    7   21    7    8   27    6   24   13   10   29    5 |    13   25   17   16   32   12   26   16   19   15    13
  29  |    6   20   10    7   19    6   23   15   10  ---    5 |    22   29   19   21   26   21   31   27   28  ---    21
  30  |    7   13    6    7   15    4   13   15   10   19    4 |    22   18   24   23   24   19   16   23   26   19    19
  31E |    8   21    9   10   23    5   20   17   10   14    5 |    31   37   31   22   40   28   30   24   35   22    27
  32  |    8   21    7   14   18    4   19   13    8   23    5 |    15   17   20   22   21   14   16   20   22   13    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20   10   11   26    6   21   14   15   22      |T   23   29   24   23   34   23   28   26   31   22    23
 WRMS |    7   20    9   11   22    5   21   12    8   23      |NE  20   24   20   19   32   20   25   23   26   18    20
 MEDI |    8   21    9   11   22    6   22   13   10   20      |MD  16   27   21   22   33   17   26   21   26   20    18

Table 3.1579.3   GPS week: 1579   Day: 3   MJD: 55300.000                            

        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  |   27  ---  ---  ---  ---   37  ---   37   26  ---   21 |   122  ---  ---  ---  ---  127  ---  131  128  ---   129
   2E |    8   21    9   10   20    2   24   18   11   14    5 |    17   30   19   21   33   20   29   22   24   23    18
   3  |    8   11    6   11   11    6   13    9   10   15    4 |    19   25   27   26   29   23   24   20   31   24    23
   4E |   14   15   11   13   19    7   15   18   23   20    6 |    21   27   20   21   31   26   28   26   38   19    21
   5  |   12   16    8   10   28    5   20   10   10   13    5 |    30   37   26   31   42   30   37   29   36   29    29
   6  |    9   11    5    9   10    6   14    8    9   13    3 |    19   26   28   28   30   23   22   21   31   24    24
   7E |    7   21    9   13   16    3   22   11   11   15    5 |    29   31   23   22   32   25   32   25   37   24    26
   8E |   18   23    9   18   17    9   17   19   17   20    7 |    23   31   22   29   24   21   28   23   35   20    23
  X9E |   10   18   11  ---   23    7   16   23   16   14    6 |    17   28   25  ---   41   19   29   27   30   14    21
  10  |    7   10    6    6   18    4   11   10    8   17    3 |    20   20   24   18   31   20   23   20   30   25    21
  11E |    6   13    8   12   19    4   14   20   10   19    4 |    19   23   20   18   26   19   23   29   25   18    19
  12  |    9   22    8    8   22    3   22   16    8   29    5 |    16   26   17   21   30   14   24   16   20   17    14
  13  |    8   20    6   13   34    6   26   13   12   16    5 |    17   27   14   18   41   17   29   18   26   12    16
 X14  |   13   29    9   12   29    8  ---   20   12  ---    7 |    15   32   25   25   34   22  ---   20   27  ---    18
  15  |   11   18    7    9   29    6   21   14    7   27    5 |    17   26   21   22   34   23   26   20   22   26    18
  16  |   11   18    9    9   22    6   23   15    9   25    5 |    14   24   20   19   33   15   25   18   22   15    15
  17  |    6   18   14   11   26    4   23   11   10   34    5 |    19   32   17   17   38   21   34   18   25   29    18
  18  |    9   21    9   12   28    4   26   13   10   25    5 |    17   30   21   21   35   17   32   18   25   23    18
  19  |    8   22   12   14   23    7   29   10   11   26    6 |    27   35   18   22   30   23   36   25   32   25    23
  20  |    9   24    8   13   34    5   25   12   11   18    5 |    22   33   23   28   31   21   29   25   24   20    22
  21E |    6   21    8    8   19    6   24   13   10   13    5 |    29   33   29   30   32   29   32   28   34   28    28
  22  |    7   19    9    9   38    6   26   13    8   18    5 |    20   30   23   22   39   18   30   20   27   18    20
  23  |    9   26    9   13   36    5   30   10   11   21    6 |    17   31   19   24   43   20   31   21   29   18    19
  24E |   23   24   20   16   16   11   25   26   58   32   12 |    94   88   95   94   90   91   86   91  113   93    92
  26  |    7   12    7    8   17    3   13   13    9   15    3 |    11   17   16    8   22   11   19   14   22   13    13
  27E |    8   17   10   25   21    7   14   13   20   11    6 |    13   21   20   25   30   11   21   13   29   13    13
  28  |    8   24   13   10   23    5   23   12   13   29    5 |    18   29   25   24   36   20   29   21   24   19    20
  29  |   12   21   10    8   22    4   26   14   10  ---    5 |    28   34   22   24   38   25   40   28   33  ---    27
  30  |    7   16    5    9   15    3   15   15    7   16    4 |    24   19   24   23   26   20   19   23   27   21    20
  31E |    7   20    9    8   20    3   20   24   12   18    5 |    37   46   42   41   45   40   48   44   38   47    39
  32  |   10   18    6   12   20    5   21   16    8   19    5 |    20   22   19   23   23   19   18   27   24   17    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19    9   12   23    5   22   15   16   21      |T   26   30   24   25   34   26   30   28   34   24    26
 WRMS |    9   19    9   12   22    5   22   13    9   20      |NE  24   27   21   22   33   25   27   26   31   20    25
 MEDI |    9   19    9   11   21    5   22   13   10   18      |MD  19   29   22   23   32   21   29   22   29   20    20

Table 3.1579.4   GPS week: 1579   Day: 4   MJD: 55301.000                            

        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  |   15  ---  ---  ---  ---   33  ---   20   25  ---   14 |   108  ---  ---  ---  ---  114  ---  105  106  ---   108
   2E |    8   21    9   13   21    6   23   16    6   17    5 |    14   30   19   18   27   16   25   18   22   22    16
   3  |   10   11    8   12   13    3   13   10   10   16    4 |    14   24   22   26   28   20   23   17   27   25    19
   4E |   11   17   13   16   20    6   14   14   24   16    6 |    18   31   25   25   30   24   28   24   34   25    22
   5  |   11   19    9   14   32    6   27    9    9   19    5 |    23   35   24   28   41   25   36   23   29   25    24
   6  |    9   13    6   11   12    3   13   10   10   16    4 |    12   23   20   24   24   18   19   16   26   23    17
   7E |    9   22   11   13   28    6   22    9    8   15    5 |    21   29   22   25   35   24   30   21   32   20    21
   8E |   19   23   11   16   19    6   18   18   20   19    7 |    20   31   24   28   24   23   27   22   39   22    23
  X9E |   13   18   17  ---   23    8   15   17   14   19    7 |    17   28   32  ---   40   21   29   27   31   16    22
  10  |    8   14    9   12   17    5   14   11    7   20    4 |    19   25   30   26   32   24   28   20   27   26    23
  11  |   11   13    7   14   29    4   14   14   12   17    5 |    13   23   17   19   30   17   21   24   25   20    17
  12  |   10   20    8   10   20    7   22   12    8   30    5 |    13   24   15   17   28   12   25   16   22   15    13
  13  |    8   18    9   13   44    8   25   14    7   20    5 |    16   26   20   21   49   17   30   21   30   16    18
 X14  |    7   18    8   14   28    7  ---   12   12  ---    5 |    18   28   24   27   36   20  ---   19   28  ---    20
  15  |   10   20    9   13   26    4   27   10   11   27    5 |    13   26   21   22   33   19   29   20   25   23    17
  16  |   10   19    9   10   21    5   23   15    8   26    5 |    11   23   19   17   34   15   27   19   19   20    14
  17  |    7   19   13   13   28    3   22    8   10   35    5 |    16   33   21   20   38   22   35   19   23   29    19
  18  |   10   22   13   11   29    3   25   13    9   24    6 |    18   32   22   21   37   19   31   19   27   24    19
  19  |    9   21   13   13   22    3   24   10   12   26    5 |    24   32   19   24   33   22   36   21   28   23    21
  20  |    9   24   11   16   31    7   24   13   11   18    6 |    17   31   22   24   29   20   29   24   21   18    19
  21E |    7   18    7   10   23    8   23   11    9   14    4 |    18   30   20   21   37   24   29   21   27   25    20
  22  |    8   17    8    9   31    5   21   12   10   18    5 |    22   30   26   21   38   21   29   22   26   22    21
  23  |   10   21    9   15   33    7   25    9    7   22    5 |    18   27   20   20   38   18   29   19   27   17    19
  24E |   23   33   20   24   28   11   35   20   61   28   13 |    89   70   77   83   82   75   72   75  110   80    80
  26  |    6   12    9    9   16    3   12   10    7   17    3 |    12   15   14   11   20   11   16   14   23   16    11
  27E |   12   17   11   15   20    8   13   11   21   14    6 |    13   23   22   18   28   17   24   14   34   13    14
  28  |    7   21   10   12   22    4   24   10    9   30    5 |    20   29   24   22   35   21   30   23   28   20    21
  29  |   15   19    6   12   23    7   26   14   15  ---    6 |    25   31   20   21   36   24   37   28   34  ---    25
  30  |    7   13    6    7   14    5   15   10   10   18    4 |    20   21   22   21   22   18   20   21   27   21    19
  31E |    7   22   11   10   19    6   21   15   10   11    5 |    22   36   25   20   41   23   31   27   28   28    23
  32  |   11   18    9   14   20    7   16   13   11   20    5 |    20   24   26   25   23   21   25   28   25   18    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19   10   13   25    6   21   12   16   21      |T   22   29   23   23   34   24   29   25   32   23    24
 WRMS |   10   19   10   13   24    5   21   11   10   21      |NE  21   26   21   21   32   23   28   24   29   21    23
 MEDI |   10   19    9   13   22    6   22   12   10   19      |MD  18   28   22   21   33   21   29   21   27   22    20

Table 3.1579.5   GPS week: 1579   Day: 5   MJD: 55302.000                            

        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  ---  ---  ---  ---   19  ---   23   23  ---   14 |    95  ---  ---  ---  ---  101  ---  106   99  ---   102
   2E |   10   24    9    9   19    4   21   15    6   14    5 |    12   30   20   14   20   13   22   13   18   17    14
   3  |   10   13    7    9   15    3   11    7    5   16    3 |    16   24   19   18   25   16   23   16   23   23    18
   4E |   12   17   10   12   14    4   14   13   22   16    6 |    14   23   16   16   24   14   24   15   30   15    14
   5  |    9   19    9    9   28    5   23   13    8   14    5 |    23   30   24   22   36   21   30   22   26   19    21
   6  |   10   13    7    8   17    4   13    7    5   16    3 |    18   25   22   19   26   17   22   19   24   25    20
   7E |    8   20   10   10   25    6   18   11    9   11    4 |    21   29   20   22   32   21   30   20   28   20    21
   8E |   20   24   10   17   22    5   17   19   20   20    7 |    18   29   20   24   22   21   23   16   33   17    19
  X9E |   11   20   10  ---   23    6   16   21   13   16    6 |    14   29   25  ---   42   20   31   26   28   14    20
  10  |    8   12    9    5   17    3   11   11    8   17    3 |    17   20   23   16   30   18   25   18   20   23    18
  11  |    8   14    8    7   32    7   14   10    9   16    4 |    14   23   18   20   37   18   26   24   22   17    17
  12  |   10   22   10   11   21    6   22   12   10   30    5 |    13   25   20   20   27   13   26   18   13   10    14
  13  |    8   16    6    9   36    5   22    9   10   17    4 |    11   24   16   14   41   11   26   13   21   12    12
  14  |   10   20   10   14   28    5   25   13    9   18    5 |    14   24   19   24   34   16   28   16   21   16    16
  15  |    8   21    9    8   28    5   23   12    8   28    5 |    13   26   18   14   33   15   25   19   18   21    13
  16  |   10   18   11    7   25    5   24   14    8   26    5 |    17   23   18   13   30   15   28   17   18   14    15
  17  |    8   16    7   10   26    4   20   12   11   36    4 |    17   26   18   17   34   16   30   18   23   31    17
  18  |    8   24    9   12   31    3   25   10    9   24    5 |    21   35   24   27   40   23   34   21   26   29    22
  19  |    8   17   12   10   27    5   24    8    9   25    5 |    18   23   15   16   30   16   26   18   22   17    14
  20  |    9   23    9   10   33    5   22   14    8   19    5 |    16   25   18   22   28   15   24   21   16   15    15
  21E |   11   17    7   10   29    5   20   13   11   14    5 |    21   25   21   17   31   15   24   18   22   17    17
  22  |    9   19    8   10   38    5   23   10    9   17    5 |    16   29   24   24   41   20   30   17   22   17    19
  23  |    9   19    7   10   35    3   28   10   11   20    5 |    15   25   17   16   41   13   28   18   23   15    15
  24E |   31   30   20   14   36   11   32   35   69   22   15 |   111  107  109  110  106  109  107  109  135  110   108
  26  |    6   16    6    8   20    5   10   15    6   16    4 |    12   17   13   12   23   12   17   18   18   15    10
  27E |   10   18   10   15   24    5   15   12   19   12    5 |    10   22   15   20   30   14   24   13   30   10    13
  28  |    8   20    8    8   25    6   22   12   11   29    5 |    12   24   17   16   32   14   28   17   18   16    13
  29  |   17   18   10   11   21    6   23   12    8  ---    5 |    24   27   20   21   27   21   33   22   27  ---    21
  30  |    7   15    6    9   14    4   10    7    9   20    3 |    19   16   22   22   19   16   19   19   21   16    18
  31E |    8   20   10    9   20    5   19   21   12   13    5 |    22   30   22   20   36   22   28   21   25   21    20
  32  |   11   22    7   10   23    4   18   18    5   18    5 |    13   19   19   17   23   13   16   24   19   13    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19    9   10   26    5   20   14   16   20      |T   21   27   22   21   33   22   28   24   28   20    22
 WRMS |    9   19    9   10   25    5   20   12    6   22      |NE  20   24   19   18   31   20   25   22   24   18    20
 MEDI |    9   19    9   10   25    5   20   12    9   17      |MD  16   25   19   19   30   16   26   18   22   17    17

Table 3.1579.6   GPS week: 1579   Day: 6   MJD: 55303.000                            

        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  |    9  ---  ---  ---  ---   21  ---   17   17  ---   10 |   106  ---  ---  ---  ---  111  ---  104  108  ---   107
   2E |    7   24    7   12   24    3   24   15   10   13    5 |    18   30   21   15   27   19   26   20   21   20    18
   3  |    9   12    6   12   14    5   13    9    9   16    4 |    18   28   23   27   29   20   23   21   24   28    21
   4E |   12   17    9   14   23    6   15   15   21   17    6 |    19   27   21   19   28   23   26   23   33   25    20
   5  |    8   19    8   14   28    7   22   10    6   18    5 |    26   37   29   28   42   28   34   29   30   28    27
   6  |    8   13    7   11   13    5   15    9    9   17    4 |    20   29   28   29   30   23   24   25   26   32    25
   7E |   10   22    9   12   16    4   20    9   10   13    5 |    22   29   20   19   26   21   28   22   31   22    21
   8E |   19   22    8   19   14    6   17   19   23   23    7 |    25   33   28   34   20   28   27   23   42   24    27
  X9E |   11   21   12  ---   20    8   17   17   14   14    6 |    15   28   23  ---   42   19   26   24   24   13    18
  10  |    9   13    7    8   18    5   11    9    7   16    3 |    22   26   29   27   31   26   28   24   28   29    25
  11  |   12   19    8    9   32    8   17   14    9   18    5 |    14   25   17   18   32   15   19   23   21   20    16
  12  |    8   22    9   14   23    5   23   11    7   31    5 |    15   27   17   25   32   15   23   21   16   17    16
  13  |    8   18    7    9   37    4   23   12    9   20    4 |    21   27   21   21   39   20   29   24   28   20    21
  14  |    8   20   10   14   29    6   28   11   13   21    5 |    18   25   22   24   32   18   26   19   23   15    18
  15  |    9   23    7   10   25    4   28   13    9   26    5 |    13   25   18   20   31   14   26   23   17   23    15
  16  |   10   22   10   10   24    7   25   17   10   26    5 |    14   24   19   19   32   13   27   22   16   19    16
  17  |   10   19    9   12   28    5   20   11   14   39    5 |    20   32   22   19   36   21   35   22   23   38    21
  18  |    8   23    8   10   24    5   26   13   10   24    5 |    22   33   24   22   35   22   31   25   22   30    21
  19  |    8   20    8   13   27    8   28    9    7   25    5 |    26   33   23   22   39   24   39   23   30   25    24
  20  |    9   22    9    9   33    6   26   14   13   20    5 |    18   27   23   24   30   18   24   26   20   19    19
  21E |    7   17    8    8   44    3   22    9   12   16    4 |    25   25   23   21   40   22   27   24   28   23    22
  22  |    7   19    7    8   34    6   27   11    9   17    5 |    21   30   25   23   39   20   27   25   23   23    21
  23  |    9   22    8   10   35    5   30   15    8   24    5 |    17   29   20   20   38   16   29   20   21   16    17
  24E |   24   26   14   19   22   18   25   29   54   25   11 |   108  103  103  108  100  104   98  106  131  104   106
  26  |    6   16    8   11   17    5   15   13    8   18    4 |    13   17   13   13   20   12   17   18   18   13    12
  27E |   12   19   11   18   32    6   16    9   24   12    6 |    12   22   14   16   37   12   23   13   30   14    12
  28  |   12   29    8   13   26    3   24   13   13   31    6 |    22   33   25   31   37   25   29   29   32   25    25
  29  |   12   19   10   11   24    5   22    9   11  ---    5 |    32   38   30   29   38   32   41   32   36  ---    31
  30  |    7   14    7    8   18    5   12    7   10   22    3 |    25   25   28   30   29   23   20   28   26   21    24
  31E |    7   18    8   13   43    7   23   14    6   11    5 |    17   27   21   16   32   19   26   18   23   16    18
  32  |   10   18    9    9   27    7   18   21   11   20    5 |    19   23   25   24   23   20   21   32   24   18    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    9   12   27    6   22   13   15   22      |T   25   30   25   25   34   25   29   28   31   24    26
 WRMS |    9   20    8   12   22    5   21   12    9   23      |NE  24   28   23   23   33   24   27   28   28   23    25
 MEDI |    9   19    8   11   24    5   22   13   10   20      |MD  20   27   23   22   32   20   26   23   24   22    21



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 4.1579   GPS week: 1579   MJD: 55297.0-55303.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2964 |U    8     7    22 |U    9    10    22 |U    8     8    20 |
emr | emr 2832 |    12    10    32 |U   10    11    28 |    12    10    25 |
esa | esa 2880 |     9     8    27 |U    9    10    25 |    10     8    19 |
gfz | gfz 2766 |U   14     8    36 |U    9    11    27 |U    8     7    19 |
grg | grg 2866 |    10     9    26 |U   10    12    29 |    11     8    24 |
igr | igr 2891 |     9     7    26 |     9    11    24 |    10     7    19 |
igs | igs 2879 |     9     8    25 |     9    11    25 |     9     8    20 |
jpl | jpl 2804 |U   11    11    29 |    10    11    30 |U   11     8    21 |
mit | mit 2976 |U   10     8    28 |U    9    11    25 |U   11     8    28 |



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 5.1579.0   GPS week: 1579   Day: 0   MJD: 55297.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2960 |     8     7    21 |     7     9    22 |     9    10    24 |
emr | emr 2769 |     9     6    24 |     9    10    24 |    11     8    24 |
esa | esa 2880 |     8     6    21 |     8     7    22 |     9     8    19 |
gfz | gfz 2768 |     8     5    20 |     9     8    29 |     6     5    17 |
grg | grg 2784 |    10     8    25 |     6     9    25 |    10     7    22 |
igr | igr 2803 |     7     5    20 |     8    13    20 |     8     5    18 |
igs | igs 2853 |     8     5    22 |     9    13    33 |     9     8    19 |
jpl | jpl 2768 |     8     6    24 |     8     8    24 |    13     9    22 |
mit | mit 2976 |     7     6    20 |     8     9    26 |    10     7    26 |

Table 5.1579.1   GPS week: 1579   Day: 1   MJD: 55298.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     6    23 |     7     7    15 |     8     7    18 |
emr | emr 2767 |     8    10    34 |     8     8    21 |     9     9    21 |
esa | esa 2880 |     9     9    35 |     7     8    17 |     9     8    19 |
gfz | gfz 2768 |     9    10    44 |     6     9    19 |     6     5    22 |
grg | grg 2880 |     8     9    27 |     9     9    26 |     8     7    21 |
igr | igr 2880 |     8     9    35 |     6     9    18 |     7     7    17 |
igs | igs 2818 |     7     8    25 |     6     8    17 |     8     8    19 |
jpl | jpl 2768 |     8     9    28 |     8     9    20 |     8     7    21 |
mit | mit 2976 |    16    10    38 |     7     9    18 |     9     7    22 |

Table 5.1579.2   GPS week: 1579   Day: 2   MJD: 55299.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2968 |     8     6    16 |    14    12    23 |     8     6    15 |
emr | emr 2860 |     8     8    25 |    15    11    39 |    12     7    22 |
esa | esa 2880 |     9     7    28 |    13    12    34 |     9     6    18 |
gfz | gfz 2768 |     8     6    24 |    14    13    40 |     8     6    17 |
grg | grg 2880 |     8     7    21 |    16    13    40 |    11     7    22 |
igr | igr 2936 |     9     7    21 |    14    12    29 |     9     6    16 |
igs | igs 2870 |     9     7    23 |    14    12    32 |     8     6    18 |
jpl | jpl 2852 |    10     8    22 |    15    12    35 |     9     6    19 |
mit | mit 2976 |    11     9    28 |    16    12    36 |    11     6    18 |

Table 5.1579.3   GPS week: 1579   Day: 3   MJD: 55300.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2963 |     8     7    20 |     6     8    21 |     8     7    19 |
emr | emr 2851 |     8    11    23 |     8     9    24 |    13    13    31 |
esa | esa 2880 |     9     8    21 |     7     7    21 |    10    10    21 |
gfz | gfz 2759 |     8     8    21 |     6     8    20 |     9     9    22 |
grg | grg 2880 |     9     9    26 |     6     9    23 |    14    11    29 |
igr | igr 2898 |     9     7    21 |     7     7    21 |    11    10    23 |
igs | igs 2909 |     8     8    20 |     6     7    21 |     9     8    21 |
jpl | jpl 2763 |    10    14    32 |     8     9    33 |    11    12    26 |
mit | mit 2976 |     8     8    21 |     7     8    20 |    10     9    22 |

Table 5.1579.4   GPS week: 1579   Day: 4   MJD: 55301.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2967 |    10    11    25 |     9    12    32 |     8     7    21 |
emr | emr 2858 |    26    15    64 |     9    10    36 |    13    13    29 |
esa | esa 2880 |    15    12    43 |    10    11    34 |    10     9    18 |
gfz | gfz 2767 |    47    18   100 |    11    13    35 |     7     7    15 |
grg | grg 2880 |    15    13    39 |    20    15    36 |    10     9    22 |
igr | igr 2941 |    15    10    42 |    10    11    35 |     9     7    20 |
igs | igs 2909 |    15    12    40 |    10    10    35 |    10     8    19 |
jpl | jpl 2763 |    19    21    49 |    11    11    53 |    12    11    23 |
mit | mit 2976 |    14    11    40 |    11    11    32 |    14    10    57 |

Table 5.1579.5   GPS week: 1579   Day: 5   MJD: 55302.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2956 |     9     7    16 |    10    14    20 |    10     9    23 |
emr | emr 2860 |    10     8    19 |    10    17    18 |    12    12    26 |
esa | esa 2880 |     8     8    17 |    10    14    20 |    10     9    20 |
gfz | gfz 2769 |     8     6    18 |    10    15    21 |    10     9    22 |
grg | grg 2880 |     9    10    21 |     8    15    19 |    12     9    22 |
igr | igr 2943 |     8     8    17 |    10    16    20 |    13     9    22 |
igs | igs 2918 |     8     8    19 |     9    15    16 |    10    10    22 |
jpl | jpl 2857 |     9     9    20 |     9    16    19 |     8     8    20 |
mit | mit 2976 |     8     7    22 |    10    14    15 |    10    10    23 |

Table 5.1579.6   GPS week: 1579   Day: 6   MJD: 55303.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2960 |     9     8    32 |     8    11    24 |     9     7    20 |
emr | emr 2860 |    13    10    33 |     8    13    32 |    14    10    21 |
esa | esa 2880 |     8     6    25 |     7    10    25 |    12     9    21 |
gfz | gfz 2769 |     8     6    24 |     7    11    28 |    10     7    19 |
grg | grg 2880 |     8     7    23 |     8    14    31 |    11     9    30 |
igr | igr 2842 |     7     6    24 |     7    12    27 |    10     8    20 |
igs | igs 2878 |     8     7    25 |     7    10    25 |    10     9    20 |
jpl | jpl 2860 |    10     7    31 |     8    12    29 |    12     7    18 |
mit | mit 2976 |     7     6    26 |     8    12    28 |    14    10    26 |


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 6.1579   GPS week: 1579   MJD: 55297.500-55303.500

                                                         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 |       6     -29      71       7     -5 |       8     15
            |      20      20      97     101      8 |       2
emr   uuuuu |      48      38     -22     191     -5 |      60     63
            |      14      15     112      60      4 |       3
esa   uuuuu |     -30     -32      -4    -177     -1 |      15     21
            |      17      17      76      16      4 |       1
gfz   uuuuu |     -21      55     -17     -48     -4 |      30     32
            |       9      19      51      29      7 |       1
grg   --xxx |      --      --      32    -165     -5 |      14     18
            |      --      --     259     149     14 |       1
igr   xxxxx |      22      25     -49     -24     -4 |       4     14
            |      14       9      55      56      7 |       2
irf   xxxxx |      19       5      33      30      6 |      -4     16
            |      13       9      91      47      6 |       2
jpl   uuuuu |      31     -10      46      26     -2 |      22     28
            |      26      17     118      77      8 |       1
mit   uuuuu |       0      15     189      55      7 |       2     17
            |      17      15     135      89      9 |       3
ngs   uuuuu |      17     -43    -154     105     -3 |       9     15
            |      41      33      81      82      4 |       1
sio   xxxxx |    -254     117    -272     -26      1 |      38     41
            |      22      18     152     113      8 |       1


Table 7.1579.0   GPS week: 1579   Day: 0   MJD: 55297.500

                                                         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 |      15       2       9    -120     10 |       6     11
emr   uuuuu |      67      18      97     216     -2 |      63     64
esa   uuuuu |     -10     -47      70    -162     -1 |      16     21
gfz   uuuuu |     -28      55     -40     -65      4 |      28     30
grg   --xxx |      --      --     455    -324    -11 |      15     18
igr   xxxxx |       9      23     -67      59     -2 |       4     14
irf   xxxxx |      21      13    -132     -46     -2 |      -2     13
jpl   uuuuu |      17       2     146      23     11 |      20     25
mit   uuuuu |       6      27     -50     -60     -4 |       7     16
ngs   uuuuu |      -7     -14    -143     206     -1 |       7     14
sio   xxxxx |    -242     133    -543    -200     -4 |      39     41

Table 7.1579.1   GPS week: 1579   Day: 1   MJD: 55298.500

                                                         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 |     -26     -16     -23     -82     -5 |      10     14
emr   uuuuu |      63      28      33     166    -15 |      65     66
esa   uuuuu |      -3     -31     -15    -165      3 |      17     22
gfz   uuuuu |     -16      34     -23     -47      4 |      30     32
grg   --xxx |      --      --     -20    -223     -3 |      15     18
igr   xxxxx |      33      38    -120     -61      1 |       6     13
irf   xxxxx |       5      17     -38      -9     -2 |      -2     12
jpl   uuuuu |      35     -10     135     153      0 |      24     28
mit   uuuuu |     -25      27      73      -7     -4 |       5     15
ngs   uuuuu |     -15     -29    -102      61      3 |       9     14
sio   xxxxx |    -257     145    -340    -175     -8 |      39     41

Table 7.1579.2   GPS week: 1579   Day: 2   MJD: 55299.500

                                                         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     -36      22     -38     -3 |       9     15
emr   uuuuu |      44      38      32      82     -5 |      63     65
esa   uuuuu |     -50     -55     -30    -177      1 |      16     22
gfz   uuuuu |     -16      45     -53     -28      0 |      31     32
grg   --xxx |      --      --    -113    -200     22 |      13     18
igr   xxxxx |      12      14     -92     -33      0 |       5     14
irf   xxxxx |      36      13      19      89      5 |      -5     15
jpl   uuuuu |      29     -27      43     -80      5 |      23     28
mit   uuuuu |      18      29     194     172      6 |       2     16
ngs   uuuuu |      22     -15    -127      98     -5 |      10     13
sio   xxxxx |    -220     123    -346      35     -3 |      38     41

Table 7.1579.3   GPS week: 1579   Day: 3   MJD: 55300.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       8     -61      89      66     -7 |       7     15
emr   uuuuu |      35      54    -198     162     -4 |      59     62
esa   uuuuu |     -38     -33     130    -184     -8 |      14     20
gfz   uuuuu |     -19      55     -84     -30     -9 |      29     32
grg   --xxx |      --      --      14    -322    -22 |      12     17
igr   xxxxx |      32      16      46     -11    -18 |       4     14
irf   xxxxx |      27      -6     116      53      6 |      -8     15
jpl   uuuuu |      61      15    -161     -27     -4 |      21     27
mit   uuuuu |       3      -6     349     123      7 |      -1     14
ngs   uuuuu |      18     -54    -150     100      0 |       8     13
sio   xxxxx |    -247     117    -187      13     -2 |      36     39

Table 7.1579.4   GPS week: 1579   Day: 4   MJD: 55301.500

                                                         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 |      -4     -27      49     173     -8 |      10     19
emr   uuuuu |      56      60     -78     264     -5 |      60     64
esa   uuuuu |     -30      -8     -44    -188      3 |      15     23
gfz   uuuuu |      -8      86      74     -19     -8 |      31     34
grg   --xxx |      --      --     217    -131     -9 |      14     18
igr   xxxxx |      28      32     -42    -117      4 |       3     14
irf   xxxxx |      25      -6      82      73     10 |      -5     19
jpl   uuuuu |      56     -15     175     -19    -11 |      23     30
mit   uuuuu |      13      -5     254     131     13 |       1     18
ngs   uuuuu |     -32     -93    -315     -26     -8 |      10     18
sio   xxxxx |    -254     107    -251      49      5 |      38     42

Table 7.1579.5   GPS week: 1579   Day: 5   MJD: 55302.500

                                                         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 |      27     -44      80     -16    -15 |       9     17
emr   uuuuu |      31      41    -123     230     -5 |      58     60
esa   uuuuu |     -32     -13     -72    -202      0 |      14     20
gfz   uuuuu |     -33      74       0     -45     -6 |      31     34
grg   --xxx |      --      --      46     -37      2 |      15     19
igr   xxxxx |       3      31     -57     -23     -6 |       3     13
irf   xxxxx |      -1       3     103      26     11 |      -5     19
jpl   uuuuu |     -16     -35     -10      75     -9 |      21     28
mit   uuuuu |     -24       9     271      53     13 |       2     19
ngs   uuuuu |      90     -79     -56      90     -5 |      10     17
sio   xxxxx |    -292     102    -106      13      9 |      37     41

Table 7.1579.6   GPS week: 1579   Day: 6   MJD: 55303.500

                                                         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     -22     273      69     -6 |       6     18
emr   uuuuu |      40      24      84     219     -2 |      55     58
esa   uuuuu |     -45     -37     -70    -160     -2 |      13     20
gfz   uuuuu |     -29      37       8    -104    -13 |      28     31
grg   --xxx |      --      --    -375      83    -15 |      15     19
igr   xxxxx |      39      18     -11      17     -8 |       1     14
irf   xxxxx |      22       2      83      22     14 |      -5     19
jpl   uuuuu |      38       0      -4      58     -7 |      20     28
mit   uuuuu |       8      20     234     -29     18 |       2     19
ngs   uuuuu |      45     -16    -185     208     -6 |       8     17
sio   xxxxx |    -262      92    -132      80     14 |      36     40



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