[IGSREPORT-17945] Wk 1553 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Oct 29 11:39:01 PDT 2009


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IGS Electronic Report   29 Oct 11:39:25 PDT 2009      Message Number 17945
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1553   (Oct 11, 2009 - Oct 17, 2009)

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


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

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

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

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

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

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

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility, no satellite L1/L2 delay calibration should be
applied.


SOFTWARE:
---------

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

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

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

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

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


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

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

  The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.

  Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions.  AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 3 weeks (21 days), i.e. up to 5 days prior to
the last non-predicted day of Bulletin A.  AC LOD biases are removed and the
new AC bias-free LODs are used to compute a weighted IGS LOD which in turn
is integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as
Bulletin A fifth day prior to its last non-predicted day. Both IGS LOD and 
UT1-UTC values are printed in the IGS Final erp file.



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

igs1553[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1553[0-6].clk  IGS GPS satellite and station clocks in SP3 format.
igs1553[0-6].cls  IGS GPS clock combination summary report.
igs15537.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15537.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   | MIZU
                0  |  EMR   | 24 MIZU
                0  |  ESA   | 4 MAS1 UNSA WTZR
                0  |  GFZ   | 1 2 24 DARW DAV1 DGAR FAA1 FLIN KERG ONSA PERT SFER
                0  |  GRG   | ONSA TWTF
                0  |  JPL   | 32 DGAR KARR
                0  |  MIT   | 24 MAS1 MAS1 MIZU
                0  |  NGS   | 1
                1  |  ALL   | 1
                1  |  COD   | 4 4
                1  |  EMR   | 25 25 WTZR
                1  |  ESA   | 4 CEDU
                1  |  GFZ   | 2 5 8 11 24 25 AUCK CHAT DARW HOB2 IRKT KARR KIRU
                1  |  GFZ   | MCM4 NRMD OUS2 PERT PIMO SFER SYOG YAR2
                1  |  GRG   | ONSA TWTF
                1  |  JPL   | 4 25 32 DGAR
                1  |  MIT   | 24 24
                2  |  ALL   | 1
                2  |  COD   | 4 25 4 25 TOW2
                2  |  EMR   | 21 21
                2  |  ESA   | 4 25 ALGO TOW2 UNSA
                2  |  GFZ   | 2 8 11 21 24 25 ADE1 AMC2 AUCK CEDU CHAT DARW DAV1
                2  |  GFZ   | DUBO FAA1 GODE GUAT HOB2 KIRU KOUC MDO1 NRMD OUS2
                2  |  GFZ   | PIE1 STJO TIDB TOW2 TRO1 YAR2 YELL
                2  |  GRG   | ONSA
                2  |  JPL   | 32 DGAR
                2  |  MIT   | 24 24 ALGO ALGO
                3  |  COD   | 24 24
                3  |  EMR   | NRC1
                3  |  ESA   | NRC1 UNSA
                3  |  GFZ   | 27 KERG MAW1
                3  |  GRG   | ONSA TRO1 TWTF
                3  |  JPL   | 32 DGAR
                3  |  MIT   | HARB DAV1 HARB MATE
                4  |  COD   | 24 24
                4  |  EMR   | KHAJ
                4  |  ESA   | 27 KOKB UNSA
                4  |  GFZ   | 4 11 21 24 CEDU FAA1 HOB2 HRAO MAC1 MIZU ONSA TOW2
                4  |  GFZ   | TSKB TWTF WSRT
                4  |  JPL   | 32
                4  |  MIT   | MIZU KERG MIZU
                4  |  NGS   | 1
                5  |  ALL   | 1 24
                5  |  COD   | 4 25 MIZU
                5  |  EMR   | 9 9
                5  |  ESA   | 4 25 CEDU UNSA
                5  |  GFZ   | 2 4 9 11 21 27 BAKO DAV1 DUBO FLIN WTZR
                5  |  GRG   | KHAJ WTZR
                5  |  JPL   | 9 27 32 AREQ
                5  |  MIT   | 8 24 8 27
                6  |  ALL   | 1 1
                6  |  COD   | 4 9 25
                6  |  ESA   | 4 9 25
                6  |  GFZ   | 2 27 ALGO DUBO FAA1 GUAM HARB MAS1 MATE MAW1 ONSA
                6  |  GFZ   | ZECK ZIMM
                6  |  GRG   | WTZR
                6  |  JPL   | 27
                6  |  MIT   | 8 24 8 21 24 27 HARB KHAJ

 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
               ----+--------+---------------
                4  |  ALL   |   8
                5  |  MIT   |   8

 6. 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.

 7. Small rotations were applied to the all AC orbit and ERP values in order
    to align them to the IGS05. These rotations were estimated in the process
    of the IGS SINEX combination, performed at NRCan by Remi Ferland, are based 
    on the common stations between the individual AC SINEX solutions and the 
    IGS05.snx SINEX. The estimated 7 transformations, from which only 
    the 3 rotations are applied to the orbit and ERP values, are:
    
            |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |     .3    1.0    1.1      -4     -4     -5    -.12
       EMR  |     .2   -1.9    1.5      56     16     55     .45
       ESA  |    6.0    7.9    9.3     101    -24     50    -.09
       GFZ  |     .0    1.1    1.1      17    -10      6    -.02
       GRG  |    6.4    5.0    6.1     -13    -17     23    -.05
       JPL  |     .0    6.4    5.9       3     -9      3     .47
       MIT  |    3.4    1.5   15.5       4      7    -22    -.16
       NGS  |    4.3     .1   10.3      13      8    -13    -.06
       SIO  |    7.6    3.4    3.3      64    -89      8     .23


 8. 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.

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

10. 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 1.1553.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1553.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 2.1553.[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 3.1553.[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 5.1553.0-6).

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 1553 summary.                       (Oct 11, 2009 - Oct 17, 2009)

Table 1.1553.a   GPS week: 1553   MJD: 55115.000-55121.000

         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  226|    1     0     0    56    -5     0  -.14    8    7 |    -575     181     22     84
        |    0     0     0    20    17    25   .03           |     783     999
emr   86|   -1     0     0   -59   -95    31   .61   20   20 |     716    -969     19     87
        |    1     2     1    31    55    10   .02           |    3526    1557
esa  120|    0    -3     0  -114    47   -31   .33   10   10 |     201     -51     21    123
        |    1     1     0    28    41    13   .03           |    1949    1217
gfz  185|    0     0    -1    14     5   -12  -.18   11   11 |      51    -283     28    121
        |    0     0     1    61    98    17   .05           |     330     826
grg  112|    3     2     1    64    13    30  1.06   35   34 |  -78482  172087     82    233
        |    2     2     2    28    23    51   .03           |  167316  435629
igr  n/a|    0     0     0    49   -20   -24   .06    6    5 |   -6902    -499     19     68
        |    0     0     1    19    29    20   .04           |    2527    1600
jpl  120|   -1     0    -2    25   -12    42   .57   20   19 |    1571    -732     18     91
        |    2     1     1    22    18    14   .02           |    2791    1543
mit  266|   -1     0     0    69   -31    11  -.35   13   12 |  -14111    -368     23    131
        |    0     0     0    20    20    15   .02           |    2293    2090
ngs  219|    0     0     0    18   -23    -1  -.18   10    7 |    8900    5517   2233  15688
        |    0     0     1    42    65    20   .01           |    6085    2454
sio  252|    1     2     2   -91   142     6  -.07   22   22 |     ---     ---    ---    ---
        |    0     0     0    16    28    18   .04           |     ---     ---


Table 1.1553.b   GPS week : 1553   MJD: 55115.000-55121.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1553.0   GPS week: 1553   Day: 0   MJD: 55115.000                            

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  226|    1     0     0    50     0    -9  -.11    8    7 |    -526     458     23     99
        |                      6    33                       |
emr   86|    0     0    -3   -54   -44    37   .62   19   19 |    4118    1381     19     87
        |                    -22   -11                       |
esa  120|    0    -1     0  -126    15   -46   .32    9    9 |    -176     484     19    114
        |                     26    33                       |
gfz  185|    0     1     0    62   -47   -14  -.18   10   10 |     299    -213     27    117
        |                    -26   -65                       |
grg  112|    4     2    -1    64    11    35  1.12   33   30 |     616     -48     81    237
        |                     93    41                       |
igr  n/a|    0     1    -1    39    -7     1   .06    5    5 |   -4706    1321     18     67
        |                    -13    18                       |
jpl  120|    1     1    -4    15   -20    59   .60   19   18 |    4233    1141     17     74
        |                     20     1                       |
mit  266|    0    -1     2    85   -39   -16  -.39   12   11 |  -15017    -692     21    123
        |                    -24   -14                       |
ngs  219|   -1     0     0    -7    25    28  -.18    8    6 |   11013    5636   1846   3650
        |                     50   -76                       |
sio  252|    1     1     2   -79   123     5  -.13   22   20 |     ---     ---    ---    ---
        |                      5   -52                       |

Table 2.1553.1   GPS week: 1553   Day: 1   MJD: 55116.000                            

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  226|    0     1     0    57    -8    44  -.14    8    7 |    -692     283     16     69
        |                    -24    40                       |
emr   86|   -2     0    -2   -63   -40    12   .60   20   20 |    5347   -2769     15     77
        |                      6   -16                       |
esa  120|    0    -1     0  -116     6   -49   .33    8    8 |    3635   -1554     21    130
        |                     47    52                       |
gfz  185|    0     0     0    34   -66   -33  -.16   11   11 |     122    -352     27    117
        |                    -37   -36                       |
grg  112|    2     0     2    91   -13     0  1.05   33   31 |     683    -895     78    222
        |                     59    52                       |
igr  n/a|    0     0     0    37    -2    -7   .04    5    5 |   -3282   -2595     20     71
        |                     30    29                       |
jpl  120|   -4     0    -3     6   -26    28   .56   20   19 |    5554   -2934     17     95
        |                     20    58                       |
mit  266|    0    -1     0    78    -6     0  -.38   13   12 |  -13855   -2490     17    111
        |                    -32   -18                       |
ngs  219|    0     0     0    22    31    13  -.21   10    7 |    7985    8887   2211   3986
        |                     39   -25                       |
sio  252|    2     2     2   -91   147   -14  -.09   21   21 |     ---     ---    ---    ---
        |                      6   -67                       |

Table 2.1553.2   GPS week: 1553   Day: 2   MJD: 55117.000                            

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  226|    1     1     0    61    13    -5  -.10    9    8 |    -388     543     18     83
        |                      7    -2                       |
emr   86|   -1     2     0   -50   -52    42   .64   21   21 |    3289   -2066     14    105
        |                    -15    10                       |
esa  120|    0    -3     0  -167    51   -25   .36    9    9 |     686    -535     21    124
        |                     83    20                       |
gfz  185|    0     0    -1   -37   -95    -9  -.15   10   10 |      79    -688     28    120
        |                    -21   -52                       |
grg  112|    6     0     4    50    21   114  1.05   34   33 |     131     778     84    240
        |                     24    36                       |
igr  n/a|    0     0     0    65    -4   -23   .10    5    5 |   -4984   -1717     19     71
        |                    -16    31                       |
jpl  120|   -4     0    -3    10    13    46   .59   20   19 |    3516   -2039     17     85
        |                     48    22                       |
mit  266|   -1     0     1    91   -56     7  -.34   10    9 |  -15479     149     22    152
        |                    -19    10                       |
ngs  219|    0     0    -1    52    45   -12  -.18    8    6 |   11408    5562   2234   4216
        |                    -39   -94                       |
sio  252|    1     2     3   -69   103     9  -.07   21   19 |     ---     ---    ---    ---
        |                     -2   -55                       |

Table 2.1553.3   GPS week: 1553   Day: 3   MJD: 55118.000                            

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  226|    1     0     0    96   -16   -28  -.14    9    8 |   -1552    1655     34    104
        |                    -58    -4                       |
emr   86|   -1     0     0    -3  -124    25   .59   20   20 |      20   -1191     27     94
        |                    -33    67                       |
esa  120|    1    -3     1  -119   127   -21   .36   10    9 |   -1424    1682     26    123
        |                     87   -75                       |
gfz  185|    0     1     0  -101    -1     9  -.13   10   10 |    -606     947     34    119
        |                    -28    14                       |
grg  112|    3     3     2   108     6    64  1.01   37   37 |     -34     389     82    213
        |                    -97   110                       |
igr  n/a|    0     0    -1    74   -56   -47   .07    6    6 |   -7835    -878     21     71
        |                    -22    98                       |
jpl  120|   -2     1    -3    60    -7    34   .56   20   20 |     370    -865     22     84
        |                     25    16                       |
mit  266|   -1     0     0    35   -49    24  -.35   11   11 |  -15963     285     34    154
        |                     -8     6                       |
ngs  219|    0     0     0    91   -51    14  -.19   10    7 |   -3977    5030   2987  86805
        |                    -62    20                       |
sio  252|    2     1     1  -116   134   -13  -.06   21   19 |     ---     ---    ---    ---
        |                      4   -81                       |

Table 2.1553.4   GPS week: 1553   Day: 4   MJD: 55119.000                            

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  226|    1     0     0    34   -36     4  -.14    9    8 |   -1401     379     34    102
        |                     27    50                       |
emr   86|    0    -1     0  -102  -192    42   .64   21   21 |   -1499   -2161     22     89
        |                     23   126                       |
esa  120|    2    -3     1   -75    59   -38   .34   13   13 |   -2374     907     25    133
        |                     31   -71                       |
gfz  185|    0     0    -4    46   198   -27  -.15   12   12 |     365   -1669     32    111
        |                     26    -4                       |
grg  112|    3     6     1    68    -9    41  1.05   36   38 | -447419 1159656     92    251
        |                     90   200                       |
igr  n/a|    0    -1     0    25   -68   -45   .06    6    6 |   -8852   -1406     21     61
        |                    -19    26                       |
jpl  120|    0    -2    -1     2   -40    61   .54   20   20 |    -524   -1458     22     91
        |                     66    54                       |
mit  266|   -1     0     1    79    -2    24  -.35   13   11 |  -14627   -2002     31    126
        |                     -8    -5                       |
ngs  219|   -1     1     0   -26  -132   -14  -.18   11    8 |   10548    5504   2406   3629
        |                    -50    39                       |
sio  252|    2     2     1   -78   195     3  -.01   22   21 |     ---     ---    ---    ---
        |                      5  -102                       |

Table 2.1553.5   GPS week: 1553   Day: 5   MJD: 55120.000                            

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  226|    1     0     0    35     4    16  -.15    8    7 |     807   -1602     18     66
        |                      1   -18                       |
emr   86|   -4    -1     0   -85  -120    24   .59   20   20 |   -3059    -762     16     76
        |                      4    70                       |
esa  120|    3    -4     0   -97    58   -22   .33   11   11 |    1290   -1516     19    122
        |                     26   -17                       |
gfz  185|    0     0    -2    69    54   -25  -.19   11   11 |     224    -412     29    164
        |                     10   -27                       |
grg  112|    0     2     2    34    55     0  1.08   36   33 | -104402   30549     73    236
        |                     45    42                       |
igr  n/a|    0     0     0    35     1   -43   .11    6    6 |   -9685      67     17     68
        |                     -8   -13                       |
jpl  120|    0     0    -1    35     3    44   .55   20   19 |   -1384     -22     16     87
        |                    -19     1                       |
mit  266|    0     0     1    62   -40    16  -.33   14   13 |  -14705   -1562     17    108
        |                    -25   -27                       |
ngs  219|   -1     0     3   -22   -77   -15  -.18   10    7 |   15285     844   1905   3854
        |                     87    91                       |
sio  252|    0     3     2   -99   142    18  -.04   24   25 |     ---     ---    ---    ---
        |                    -23   -96                       |

Table 2.1553.6   GPS week: 1553   Day: 6   MJD: 55121.000                            

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  226|    1     1     0    59     6   -24  -.20    8    7 |    -277    -444     17     65
        |                     13    16                       |
emr   86|   -3    -5     0   -54   -93    33   .59   19   19 |   -3201     785     20     85
        |                      0    43                       |
esa  120|    0    -2     0   -99    13   -16   .28    9    8 |    -224     172     20    115
        |                     35     1                       |
gfz  185|    1     2    -1    23    -5    11  -.29   11   11 |    -121     405     22    104
        |                    -17   -22                       |
grg  112|    0     1    -2    33    23   -46  1.04   36   34 |    1049   14185     84    234
        |                     16    57                       |
igr  n/a|    0     0     1    66    -3    -6   .00    5    5 |   -8975    1713     19     72
        |                    -59     9                       |
jpl  120|    1     0    -1    48    -7    23   .57   19   18 |    -767    1049     20    123
        |                     11    32                       |
mit  266|   -1     0     0    50   -24    23  -.34   17   15 |   -9136    3734     22    144
        |                     -6   -23                       |
ngs  219|   -1     0     0    19    -7   -25  -.19   10    7 |   10039    7156   2046   3681
        |                      8     9                       |
sio  252|    0     2     1  -105   152    39  -.07   25   25 |     ---     ---    ---    ---
        |                    -22   -78                       |

       
       
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 3.1553.0   GPS week: 1553   Day: 0   MJD: 55115.000                            

        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  ---  ---   17  ---   21  ---   14   14  ---   10 |    19  ---  ---   33  ---   36  ---   21   31  ---    23
   2E |    7   17    8    9   29    4   17   13    8   14    4 |    15   24   18   16   31   16   22   13   17   21    15
   3  |    6   12    9   11   23    4   14   12    7   24    4 |    19   22   25   30   18   21   22   21   20   25    20
   4E |   11   21   13   10   69    7   18   20   20   19    6 |    34   48   39   34   58   36   45   36   41   37    36
   5  |    7   22    8   14   32    5   26   14   10   33    5 |    28   41   29   29   44   28   39   25   29   36    28
   6  |    5   11    8    9   21    4   12   13    5   25    3 |    20   22   23   29   23   22   21   23   23   24    20
   7  |    8   16   11   10   41    5   16    9    6   14    4 |    18   28   23   16   41   18   25   16   19   17    18
   8  |   13   13    8   12   20    5   13   11    5   25    4 |    43   42   42   39   48   49   36   75   40   40    41
   9  |    8   21    9   12   28    4   17   13    8   18    4 |    40   54   45   40   55   43   56   45   41   40    42
  10  |    7   10    9   12   29    5   11   13    8   11    3 |    21   22   21   24   21   18   17   22   18   20    19
  11E |    9   15    7    5   30    5   22   10    7   14    4 |    25   38   34   31   35   31   37   29   31   32    30
  12  |    4   12    5    7   39    5   14   10    7   21    3 |    21   26   21   22   38   19   26   20   19   24    21
  13  |    9   20    7    9   37    5   22   11    7   19    4 |    15   29   23   19   43   17   27   19   19   19    17
  14  |    6   17    9    9   24    3   20   16    6   18    4 |    19   27   25   22   34   20   25   14   18   22    19
  15  |    8   21   13   12   26    6   25   14   10   10    5 |    16   26   21   20   30   16   24   17   16   17    15
  16  |    5   18    9   10   41    4   16    9    7   32    4 |    14   24   18   20   32   14   21   14   17   14    14
  17  |    9   18    6    8   28    5   21    9   10   25    4 |    18   37   29   27   51   25   38   20   24   18    23
  18  |    5   21    9   10   38    6   23    8    7   21    4 |    24   37   33   24   42   25   36   23   22   25    25
  19  |    5   20   11   12   40    4   23    9    6   21    4 |    14   28   13   16   39   12   28   17   14   21    14
  20  |    7   22    6   12   32    5   24   13    7   21    4 |    26   37   32   31   40   28   36   27   30   27    28
  21E |    6   22    9   13   44    4   25    8    7    9    4 |    18   29   25   17   40   20   29   17   17   20    18
  22  |    6   21    9    9   30    4   22    9    5   28    4 |    24   35   31   25   42   25   33   24   25   31    25
  23  |    8   24    8   12   32    5   23   12    6   18    4 |    17   34   29   26   38   21   31   21   23   24    21
 X24E |   19   26   17   29  ---   17  ---   22   20  ---    9 |    44   43   35   48  ---   40  ---   39   48  ---    39
  25E |   17   26   13   14  ---    9   22   14   17   25    6 |    53   58   57   60  ---   54   59   57   58   66    55
  26  |    9   20    8   11   25    3   12   13    7   19    4 |    20   30   21   17   27   18   21   21   14   29    18
  27  |    7   21    9   10   22    5   19   13    9   17    4 |    92   96   95   95   97   93   94   94   92   92    94
  28  |    7   14   10    7   33    4   16    6    6   30    4 |    29   36   34   33   31   29   34   29   27   29    30
  29  |    6   19    8    7   32    3   22   13    6   19    4 |    20   36   30   21   50   24   37   23   23   19    23
  30  |    6   11    8    7   22    5    9   14    4   18    3 |    25   27   25   25   33   23   25   24   25   17    23
  31  |    5   18    7    7   29    5   16    9    7   16    3 |    22   32   25   22   44   23   28   22   25   27    24
  32  |    7   19    7   11   24    5   15    8    6   38    4 |    14   19   21   23   24   16   18   14   15   41    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    9   10   33    5   19   12    8   22      |T   25   35   30   29   39   27   33   27   27   29    26
 WRMS |    7   19    9   10   30    5   18   11    6   20      |NE  21   30   25   24   35   22   28   23   22   24    21
 MEDI |    7   19    9   10   30    5   18   12    7   19      |MD  20   32   25   25   39   23   28   22   23   24    23

Table 3.1553.1   GPS week: 1553   Day: 1   MJD: 55116.000                            

        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  ---   15  ---   14   16  ---    8 |    15  ---  ---   16  ---   22  ---   17   21  ---    13
   2E |    7   19    7    9   34    3   20   16    7   11    4 |    11   24   17   16   28   12   20   14   13   19    14
   3  |    7   13    9   12   23    3   15   11    6   22    4 |    11   16   15   20   15   11   14   18   17   17    12
   4E |    9   24   13   10   44    6   17   15   25   14    6 |    30   46   36   32   56   31   42   29   32   33    31
   5  |    7   23   10   12   27    6   26   15    9   31    5 |    24   39   24   26   41   24   38   23   25   32    23
   6  |    5   11    7   10   23    4   14   12    7   23    4 |    14   18   15   19   18   13   18   21   17   20    14
   7  |    7   21    9   10   44    5   20    9    8   11    4 |    13   26   18   16   39   13   23   14   12   16    13
   8  |   10   18    6   14   48   10   20   14   11   34    5 |    84   90   60   76   62   57   51  138   62   54    83
   9  |    6   24    6   12   26    5   17   16    8   15    4 |    38   51   37   40   41   39   49   42   37   41    39
  10  |    6   11    8    8   26    5   12   15    8   11    3 |    17   21   17   23   21   16   20   20   19   20    18
  11E |    8   17    6    5   47    4   22   11    7   13    4 |    21   27   20   20   37   21   25   20   20   20    19
  12  |    7   13    6    7   36    5   15   11    6   21    3 |    12   23   15   18   27   14   22   14   14   17    13
  13  |    6   21    7   12   41    6   24   11    6   19    4 |    12   28   17   17   42   13   26   14   13   18    13
  14  |    4   16   11    6   25    2   19   11   10   17    4 |    18   27   24   19   35   16   25   14   21   17    19
  15  |    8   21    8    9   29    5   25   15   11   11    5 |    16   30   18   23   32   18   29   15   22   17    18
  16  |    7   20    9   12   32    4   19   10    8   31    5 |     9   23   15   17   26   10   20    9   12    8     9
  17  |    8   24    8   10   30    5   22   10    9   25    5 |    20   42   31   27   52   25   39   20   22   13    24
  18  |    6   23   10   12   29    4   26   12   10   20    5 |    20   36   29   21   39   21   36   20   22   21    22
  19  |    7   19    8   12   38    3   26    9    7   20    4 |    12   23   13   12   33   10   25   16   15   16    11
  20  |    7   23    9   13   28    6   24   13   10   21    5 |    16   31   23   20   36   19   30   17   20   19    18
  21E |    6   29   10   14   38    7   29   21    8   10    5 |    20   35   25   26   48   24   32   24   21   19    19
  22  |    6   19    8    8   22    4   22   11    7   25    4 |    21   31   26   21   41   21   33   20   22   23    22
  23  |    8   27    9   15   33    6   25   10    7   20    5 |    16   31   23   21   34   17   26   14   18   18    16
 X24E |   18   27   26   15  ---   10  ---   21   19  ---    9 |    41   42   46   50  ---   41  ---   34   46  ---    38
  25E |   18   20   10   15  ---    6   20   14   16   24    6 |    56   54   58   55  ---   54   53   53   56   64    55
  26  |    9   15    8    8   28    5   11   13   10   17    4 |    18   25   20   18   29   15   22   21   19   26    18
  27  |   12   26    7   10   21    7   19   15   11   16    5 |   104  118  112  109  120  108  113  108  110  110   109
  28  |    7   17    8   12   44    5   19    7   14   31    5 |    17   30   23   27   31   19   27   19   22   23    20
  29  |    8   20    9   11   43    6   24   10   11   19    4 |    18   31   24   18   47   19   34   17   16   14    18
  30  |    8   10    4    5   22    4    9   13    8   14    3 |    14   20   17   19   31   16   21   20   17   12    15
  31  |    6   25    7    8   32    6   20   10   11   14    4 |    21   37   25   21   43   20   31   20   27   23    23
  32  |    9   22    9   11   18    5   13    8    7   37    5 |     9   18   16   15   22   11   17   10   10   39    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    8   11   33    5   20   13   10   21      |T   24   35   27   27   38   24   32   26   25   26    24
 WRMS |    7   20    8   11   31    5   19   12    7   21      |NE  18   29   21   22   34   18   27   22   19   20    19
 MEDI |    7   20    8   11   30    5   20   12    8   19      |MD  17   30   23   20   36   19   26   20   20   19    18

Table 3.1553.2   GPS week: 1553   Day: 2   MJD: 55117.000                            

        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  |   20  ---  ---   25  ---   16  ---   14   24  ---   12 |    14  ---  ---   31  ---   26  ---   20   27  ---    19
   2E |    7   21    7    8   32    3   21    9    8   14    4 |    13   24   20   15   30   15   22   13   15   16    13
   3  |    7   16    9   14   26    5   13    8    6   23    4 |    15   19   18   24   15   17   19   18   19   17    16
   4E |   10   23   12   10   48    7   18    9   23   15    5 |    31   47   36   36   54   33   45   32   31   36    32
   5  |    7   23    8   12   36    7   26   10    9   29    5 |    20   40   25   27   44   22   37   22   23   27    22
   6  |    6   14    9   10   28    4   13    7    4   24    3 |    16   19   22   22   25   18   20   17   19   21    17
   7  |    7   18    8   11   48    7   17    8    8   12    4 |    15   29   18   16   41   16   24   15   16   18    15
  X8  |   10   18    7   15   32    7  ---    8    6   27    5 |    49   50   35   48   61   54  ---   62   35   27    48
   9  |    7   22    7   12   25    4   19   14    7   17    4 |    37   43   37   37   45   35   45   37   36   37    36
  10  |    5   13    6    9   28    7   13   11    8    9    3 |    12   23   17   21   19   16   16   17   18   16    15
  11E |    8   15    8   10   41    6   17    6    6   12    3 |    18   26   20   19   40   19   23   18   20   19    17
  12  |   10   15    9    8   45    4   15    8    6   20    4 |    15   24   20   24   28   16   23   14   20   16    16
  13  |    6   21    8   10   39    5   22    8    5   19    4 |    13   28   19   20   40   15   25   15   12   20    13
  14  |    6   18   10    9   27    5   22    9    9   16    4 |    13   25   18   20   36   15   24   14   18   17    16
  15  |   12   24    7   10   39    8   26   10    6    9    4 |    18   27   20   22   32   19   26   17   16   18    17
  16  |    8   21   11   12   27    4   17    9    7   29    4 |    12   25   17   20   27   11   20   13   14   14    12
  17  |    8   20    8    8   38    4   22   11   10   26    5 |    22   42   30   30   55   28   40   25   25   19    25
  18  |    6   22    9   12   24    5   25    7    7   19    4 |    20   38   27   25   44   21   35   20   18   16    21
  19  |    6   23   10   14   40    3   24    9    7   20    4 |    12   27   12   11   34   11   26   17   12   14    10
  20  |    7   21    8   11   26    7   22    9    7   21    4 |    19   32   26   22   38   22   29   20   21   23    21
  21E |    7   24   12    9   38    6   23    6    6    8    4 |    18   29   28   19   49   20   30   16   19   20    19
  22  |    7   22    9    6   24    5   21    9    6   21    4 |    20   36   26   23   45   21   34   22   22   20    22
  23  |    7   30   11   11   31    6   26    8    7   19    5 |    15   32   22   20   34   16   26   16   18   19    16
 X24E |   16   36   14   23  ---   16  ---   24   23  ---    9 |    39   42   37   50  ---   38  ---   31   54  ---    37
  25E |   13   23   10   13  ---    4   18   12   12   25    5 |    41   53   45   48  ---   43   47   42   43   56    44
  26  |   11   14    8    9   25    6   12   13    6   16    4 |    17   21   19   17   26   17   22   22   15   25    17
  27E |   19   29    8   11   28    7   26   18    7   20    6 |    64   77   67   65   80   70   75   74   67   64    66
  28  |    7   17   10   10   37    4   18    9   10   35    5 |    19   30   29   29   32   21   31   23   16   23    21
  29  |   10   19   11    9   33    4   21    8    7   19    4 |    18   31   24   24   46   20   34   20   18   16    19
  30  |    9   13    7    7   22    4    9   11    7   18    3 |    19   21   24   26   33   21   22   23   23   19    20
  31  |    7   23   11    7   35    5   17    9    8   13    4 |    15   31   16   17   40   16   25   15   19   17    15
  32  |    8   21    9    8   23    7   13    5    8   37    4 |     9   19   20   18   29   13   16   12   14   39    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   21    9   10   34    5   20   10    8   21      |T   21   32   25   26   38   23   29   23   23   23    22
 WRMS |    8   21    9   10   33    5   19    9    6   19      |NE  17   29   22   23   35   19   26   20   19   20    18
 MEDI |    7   21    9   10   32    5   19    9    7   19      |MD  18   29   22   22   38   19   26   18   19   19    17

Table 3.1553.3   GPS week: 1553   Day: 3   MJD: 55118.000                            

        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  ---  ---   14  ---   28  ---   12   30  ---   12 |    16  ---  ---   19  ---   43  ---   21   44  ---    21
   2E |    9   17    8    9   41    5   19   11   10   14    4 |    18   28   24   25   40   20   27   19   22   26    20
   3  |    5   13    6   10   28    5   12    8    7   21    3 |    18   19   16   19   18   15   20   18   20   17    14
   4E |    9   22   15    9   62    5   17   11   22   14    5 |    32   41   38   31   52   32   43   31   34   36    32
   5  |    6   24    6    7   43    5   22   13   10   28    5 |    28   41   34   31   44   28   39   29   28   32    28
   6  |    7   12    6    9   29    5   11    7    8   23    3 |    21   20   19   22   16   18   23   20   24   22    18
   7  |    7   21    8    9   48    3   16    8    9   14    4 |    14   28   22   20   41   18   26   16   19   21    16
  X8  |    8   25    7   14   28    7  ---   10   16  ---    5 |    39   43   20   49   29   79  ---  140   25  ---    38
   9  |   20   26    9   11   29    9   18   17   11   19    6 |    62   83   70   72   77   72   84   73   72   75    70
  10  |    6   12    8    4   34    3    9   10   12    8    3 |    22   24   26   23   22   20   23   24   22   19    21
  11E |    9   17   11    7   48    4   19    8    6   10    4 |    17   24   22   18   47   18   23   16   17   17    16
  12  |    7   16   12   10   50    6   17   15    8   20    4 |    17   27   21   22   39   18   28   23   18   20    18
  13  |    7   18    7   10   44    3   22   10    8   20    4 |    13   27   19   20   45   15   26   13   17   18    13
  14  |    6   13   10   12   37    4   21   12   11   21    4 |    16   24   23   21   40   17   25   18   19   15    16
  15  |   10   24    9    8   35    6   23   11    7   13    4 |    16   27   18   20   31   16   26   17   13   19    15
  16  |    8   21    9   12   23    6   22    8    8   30    5 |    13   24   22   17   32   15   24   16   18   15    14
  17  |    7   25   14   10   43    6   26    9    7   23    5 |    24   41   34   28   58   27   38   23   23   19    25
  18  |    6   20   12   13   25    6   24    8   11   20    5 |    21   38   31   25   44   25   37   24   26   23    24
  19  |    5   20    8   11   39    8   22   10    9   18    4 |    13   29   14   14   39   11   29   18   15   16    12
  20  |    8   18    8   11   30    5   25   12    7   18    4 |    20   30   26   24   40   21   30   18   21   19    19
  21E |    6   22    9   11   34    6   22    7   10    9    4 |    14   27   23   15   41   20   28   15   21   19    16
  22  |    8   20    9    8   26    5   23   15    8   21    5 |    22   36   30   27   46   25   33   26   25   21    24
  23  |    7   24   10   11   35    4   27   11    7   19    5 |    13   30   22   22   34   15   28   13   13   16    13
 X24E |   20   32   13   23  ---    8  ---   18   21  ---    9 |    38   38   36   42  ---   38  ---   33   47  ---    35
  25E |   14   21    9   13  ---    6   18   16    9   24    5 |    52   58   57   54  ---   53   56   53   53   65    54
  26  |   11   16    8   12   29    6   14   17   12   17    5 |    19   25   21   20   34   17   21   26   17   25    17
  27E |   11   31   12   12   32    8   25   14   15   23    6 |   134  146  140  135  158  138  145  138  136  135   137
  28  |    5   15   10    9   43    7   19    9   12   34    5 |    21   33   27   27   33   24   31   26   18   26    23
  29  |   11   21   13   13   41    6   25    8   14   20    5 |    20   36   31   22   43   24   40   27   26   19    24
  30  |    8   11    7    8   25    6   11    9    9   15    3 |    20   25   25   23   30   21   26   26   22   23    21
  31  |    5   23    5   11   38    5   21   11    9   12    4 |    18   32   21   22   44   19   31   18   23   20    19
  32  |   11   18   11   11   18    6   20    7    6   36    5 |    14   19   21   16   23   12   20   15   15   39    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   20   10   10   37    6   20   11   10   20      |T   25   36   30   29   42   29   35   31   28   28    26
 WRMS |    8   20    9   10   37    6   20   11    7   19      |NE  19   29   23   23   35   22   28   25   21   21    19
 MEDI |    8   20    9   11   35    6   21   10    9   20      |MD  19   29   23   22   40   20   28   21   22   20    19

Table 3.1553.4   GPS week: 1553   Day: 4   MJD: 55119.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   12  ---  ---   18  ---   20  ---   16   17  ---    9 |    15  ---  ---   27  ---   31  ---   22   27  ---    19
   2E |    8   18   15   10   31    6   20   16   15   14    5 |    16   27   21   21   29   23   23   21   28   23    19
   3  |    7   16    9   15   29    5   14    8    9   23    4 |    16   21   20   24   18   22   17   19   29   19    19
   4E |   13   23   14   10   45    5   16   20   27   12    6 |    33   48   37   35   57   37   43   34   38   37    34
   5  |    8   25   10   13   40    6   25   12   14   29    6 |    18   37   24   21   44   22   34   19   26   26    20
   6  |    6   14   11   12   27    5   12    7    6   23    4 |    19   23   25   25   20   24   20   21   28   23    21
   7  |    7   25   11    8   50    5   16   13    7   14    4 |    20   38   26   20   42   26   28   20   27   26    22
   9E |   23   27   15   20   27   10   24   19    9   25    7 |    65   75   74   71   80   72   77   75   74   71    69
  10  |    6   13   12    8   27    7   11   10   14   12    4 |    15   21   22   18   17   21   19   19   25   20    19
  11E |    7   18   13    9   32    6   16   12    8   16    4 |    17   29   20   17   35   23   24   17   27   22    19
  12  |    7   18   11    9   49    8   20   12    7   24    4 |    15   28   26   22   35   20   26   20   29   15    20
  13  |    5   21   13   15   48    4   24   12    9   20    5 |    15   31   22   16   46   21   26   12   25   23    17
  14  |    8   20   16    9   37    7   22   13    7   20    5 |    14   29   19   20   40   18   26   21   23   16    18
  15  |   10   20   14   12   36    7   24   12    9   14    5 |    22   31   26   25   33   25   29   20   29   25    23
  16  |    8   21   14   18   32    5   20   10   12   32    6 |    13   27   17   24   26   19   22   21   27   16    17
  17  |    8   20   11   11   31    6   21   11   14   25    5 |    24   42   34   30   47   31   40   23   34   18    27
  18  |    6   24   13   14   25    7   23    9    7   23    5 |    17   36   26   21   40   22   33   20   23   17    20
  19  |    6   23   10   11   44    5   23    9    6   20    4 |    17   30   19   10   40   21   28   20   26   19    18
  20  |    7   24   13   14   25    6   24   12    8   21    5 |    21   37   28   21   37   26   31   21   28   23    23
  21E |    7   23   13   12   29    9   21   10   12    9    5 |    18   30   26   22   33   25   29   18   25   20    18
  22  |    7   21   14   10   36    6   22   18    8   25    5 |    18   34   25   21   44   22   30   26   26   16    21
  23  |    7   29   15   14   40    5   28   12    7   20    6 |    13   35   22   15   37   19   29   12   20   18    15
 X24E |   21   29   11   18  ---   11  ---   22   27  ---    9 |    34   36   31   44  ---   37  ---   32   49  ---    32
  25E |   13   23   11   16  ---    5   19   18   12   25    6 |    45   56   53   51  ---   50   53   46   50   61    49
  26  |   10   17   14   10   30    6   14   15    6   18    4 |    19   29   22   20   32   22   23   26   26   26    21
  27E |   12   29   11   13   51    8   24   15   11   19    6 |    81   94   86   85   90   86   91   84   88   89    86
  28  |    8   13   14   10   56    6   17   10   13   36    5 |    22   33   26   25   37   26   32   25   30   27    24
  29  |    8   22   17   14   37    6   22    9   13   25    5 |    22   37   30   24   47   28   38   25   30   22    24
  30  |    7   16   12    7   27    5   12    9   10   21    4 |    20   32   31   25   29   26   27   27   30   24    25
  31  |    7   26   15   11   23    5   20   10    8   17    5 |    20   38   26   18   40   21   29   22   32   21    23
  32  |   10   23   14   10   21    5   17    9    7   37    5 |    19   29   25   16   23   22   24   19   25   43    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   21   13   12   36    6   20   13   11   22      |T   23   36   29   26   39   41   32   26   32   27    25
 WRMS |    8   21   13   12   38    6   20   11    8   21      |NE  17   31   24   21   35   41   27   20   26   22    20
 MEDI |    8   21   13   12   32    6   20   12    9   21      |MD  19   32   26   22   37   23   29   21   28   23    21

Table 3.1553.5   GPS week: 1553   Day: 5   MJD: 55120.000                            

        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  ---   20  ---   12   14  ---    8 |    20  ---  ---   23  ---   26  ---   23   25  ---    20
   2E |    7   19   13   11   25    8   21   19   12   19    5 |    21   28   26   23   34   23   26   31   28   27    22
   3  |    6   13    9   11   22    5   13    8    8   26    4 |    15   15   13   20   19   15   17   20   16   22    14
   4E |   10   21   13   11   55    7   15   18   23   15    6 |    32   46   37   32   60   34   43   34   36   39    33
   5  |    9   26   11   12   34    8   25   12   11   31    6 |    27   43   31   27   46   27   39   26   29   31    27
   6  |    5   13    9   10   21    5   13   10    8   26    4 |    16   18   14   21   19   16   19   20   18   28    15
   7  |    9   24    9   13   47    5   22   13    6   14    5 |    17   33   21   19   42   19   29   17   18   24    18
  X8  |   10   26  ---  ---   73   56  ---  389  ---  ---   16 |    39   51  ---  ---   47  129  ---  217  ---  ---    42
   9E |   11   23   11   21   34    6   21   18   15   24    6 |    58   71   60   62   63   58   70   61   55   66    61
  10  |    6   14    8    9   22    8   10   14   11   12    4 |    19   24   23   20   29   18   20   23   20   24    19
  11E |    7   17   12   11   36    5   17   10    6   17    4 |    18   25   19   21   30   18   23   21   16   19    17
  12  |    7   15   11    9   52    7   15   17    7   26    4 |    20   26   24   18   35   19   25   22   19   19    19
  13  |    7   21   13   10   48    4   21   14    7   23    5 |    14   31   23   17   44   17   27   14   16   25    16
  14  |    5   18   14   10   28    6   22   15   10   22    5 |    16   30   21   19   33   18   28   23   14   19    18
  15  |    8   21   12    9   39    9   23   15   12   14    5 |    18   28   20   17   32   18   26   23   19   26    19
  16  |    8   20   14   13   36    5   22   14    7   29    5 |    14   25   16   18   29   14   23   21   12   17    14
  17  |    8   22   12   11   27    5   22   13   13   29    5 |    21   44   31   29   49   27   40   22   27   15    26
  18  |    6   19   11   13   21    5   22    8    7   27    5 |    20   37   28   23   41   23   35   22   20   26    22
  19  |    6   21    9   13   43    4   25   10    9   22    5 |    12   26   11   12   38   13   28   17   16   16    12
  20  |    7   24   11   11   26    6   26   11    7   23    5 |    19   33   26   24   38   22   30   20   25   22    22
  21E |    7   26   12   12   24    6   21   10   10   12    5 |    17   33   22   21   36   19   27   18   18   22    17
  22  |    7   22   12   10   23    6   23   19    8   29    5 |    18   36   26   21   40   23   33   26   21   21    21
  23  |    6   28   14   12   35    4   26   12    6   22    5 |    15   31   23   18   35   17   27   15   17   21    17
 X24E |   15   27   20   25  149   22  ---   20   42  ---   11 |    35   35   28   48 9999   33  ---   30   63  ---    34
  25E |   11   22   10   13  ---    5   19   20   11   26    5 |    53   57   58   56  ---   53   55   54   54   63    54
  26  |    8   17   11    7   27    8   11   12    8   25    4 |    15   31   19   17   27   19   23   23   13   27    17
  27E |    9   24    9   16   54   10   23   18   11   21    5 |   124  136  130  125  136  127  134  127  125  131   127
  28  |    7   16    8    9   43    6   17   10   11   36    5 |    19   31   25   26   35   23   30   22   22   23    21
  29  |    9   19    9   12   49    6   22   11    8   22    5 |    20   35   27   21   51   24   38   24   21   18    22
  30  |    8   12    8   10   33    5   10   12    7   19    3 |    21   24   22   19   27   18   22   23   20   18    19
  31  |    9   25   13    8   32    7   24   14    9   15    5 |    23   37   22   22   45   22   32   24   23   25    23
  32  |    9   21   12   10   20    5   12   10    6   37    5 |    12   18   18   16   24   14   18   14   15   41    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20   11   11   36    6   20   14   10   24      |T   25   36   28   27   40   29   34   33   27   30    26
 WRMS |    7   20   11   11   33    6   19   13    7   25      |NE  18   30   22   20   35   24   27   29   19   23    19
 MEDI |    8   21   11   11   34    6   21   13    9   23      |MD  19   31   23   21   36   19   28   23   20   24    19

Table 3.1553.6   GPS week: 1553   Day: 6   MJD: 55121.000                            

        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  ---  ---   23  ---   23  ---   16   22  ---   11 |    20  ---  ---   23  ---   34  ---   27   34  ---    23
   2E |    7   19    7    9   29    5   23   27    9   15    5 |    18   29   22   21   32   21   27   28   23   23    20
   3  |    7   13    8   10   18    3   12   15   11   29    4 |    18   18   18   26   19   20   17   26   23   24    17
   4E |   11   22    9   11   49    5   15   24   21   14    6 |    30   43   34   33   53   31   42   31   37   36    32
   5  |    6   24    9   17   30    7   24   14    9   33    6 |    23   39   27   28   45   24   38   23   26   30    24
   6  |    6   14    6   10   18    3   12   16    9   28    4 |    20   18   18   26   21   20   18   26   22   27    18
   7  |   11   20    9   11   42    4   17   18    7   16    5 |    23   30   22   18   35   19   29   19   23   22    20
  X8  |   29   55  ---   65   31   43  ---   27  ---  ---   26 |    44   58  ---   51   40   82  ---  103  ---  ---    35
   9E |   13   24    9   14   54   11   20   19   14   21    6 |    83   91   82   81   89   78   91   84   80   84    81
  10  |    8   11    5    8   22    6   11   25    9   17    4 |    18   19   18   19   22   15   17   26   18   19    15
  11E |    9   15    5   12   40    5   14   13    7   18    4 |    23   25   22   28   38   22   23   26   23   21    20
  12  |    7   16    9   10   41    6   17   12    8   28    4 |    20   27   24   25   32   20   26   27   19   24    22
  13  |    7   18    9   13   46    3   20   13    7   26    4 |    14   29   21   19   46   16   26   16   16   27    16
  14  |    5   17    9   11   28    4   22   17    7   23    4 |    17   28   21   22   36   17   27   19   16   19    18
  15  |    6   21   10   10   47    5   24   17    8   16    5 |    16   25   19   22   39   18   24   23   18   25    17
  16  |    8   18   10   14   38    5   21   19   12   30    5 |    15   21   17   20   30   14   23   25   14   17    13
  17  |    7   22    9   11   34    6   22   15    7   26    5 |    21   40   28   27   51   25   39   21   22   18    24
  18  |    6   20    7   10   24    2   22    8   10   29    5 |    19   33   26   22   40   21   33   22   22   25    21
  19  |    7   20    7   11   37    4   26   12   10   29    5 |    17   28   14   13   42   15   30   23   20   19    15
  20  |    7   21   10   12   29    5   25   12    7   22    5 |    21   29   24   23   37   21   31   21   22   22    20
  21E |    7   18    9   10   44    6   23    8    8   12    4 |    19   27   22   20   56   18   28   17   17   20    17
  22  |    6   19    8   10   23    3   22   16    8   30    5 |    20   32   27   23   40   21   32   24   20   21    22
  23  |    7   24   12   12   41    4   23   13    8   25    5 |    14   29   22   19   35   17   28   14   19   21    16
 X24E |   19   32   19   26 >>>>   16  ---   21   31  ---   11 |    42   53   45   49  912   46  ---   40   62  ---    43
  25E |   12   19    9   15  ---    4   14   24   10   27    5 |    67   67   68   73  ---   70   67   69   67   77    69
  26  |    8   14    8    6   23    3   10   12    8   32    4 |    18   26   21   18   26   18   22   20   17   28    18
  27E |    8   19    7   14   60    6   18   20   13   19    5 |   123  132  125  116  130  122  133  125  124  120   122
  28  |    8   17    8   10   30    5   17   11    6   36    5 |    24   32   31   32   37   25   29   25   24   27    26
  29  |    8   18    9    8   30    7   22   11   10   25    5 |    24   36   28   22   46   27   41   27   25   25    25
  30  |    8   16    8    8   33    6   11   14    6   21    4 |    25   26   24   26   28   22   25   30   25   23    24
  31E |   15   19   12    9   33    7   20   20   10   15    5 |    46   48   49   42   61   39   48   38   39   39    41
  32  |    7   18    8    8   22    5   14   13    8   39    5 |    11   18   16   14   20   12   19   12   12   40    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    9   11   36    5   19   17   10   25      |T   28   37   31   31   71   30   35   33   29   31    28
 WRMS |    7   19    8   11   34    5   18   15    7   25      |NE  20   29   22   23   34   22   27   26   20   23    20
 MEDI |    7   19    9   11   33    5   20   15    9   25      |MD  20   29   22   23   38   21   28   25   22   24    20



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components.  See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.1553   GPS week: 1553   MJD: 55115.0-55121.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3041 |U    9     9    25 |U    7    10    24 |U    7     8    19 |
emr | emr 2934 |    16    15    39 |U   11    11    35 |     8     9    21 |
esa | esa 2934 |    12    12    32 |U    7     9    24 |     6     6    18 |
gfz | gfz 2984 |U   18    18    38 |U   16    21    40 |     9     9    23 |
grg | grg 2811 |    14    13    38 |U   10    12    31 |     8     7    21 |
igr | igr 3000 |    12    12    36 |     9    10    26 |     7     8    19 |
igs | igs 2957 |    13    13    33 |    10    12    29 |     7     8    19 |
jpl | jpl 2799 |    15    16    40 |U   12    12    31 |U    8     8    21 |
mit | mit 3058 |U   12    12    37 |U   12    12    38 |U   16    12    35 |



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 5.1553.0   GPS week: 1553   Day: 0   MJD: 55115.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3059 |    10     9    31 |     8    12    32 |     6     8    21 |
emr | emr 2954 |    14    12    40 |    11     9    35 |     7     9    22 |
esa | esa 2976 |    11    10    35 |     8    11    30 |     8     8    23 |
gfz | gfz 3047 |    11    11    29 |    14    11    30 |     9    17    37 |
grg | grg 2784 |    10    12    36 |     9    12    34 |     7    10    27 |
igr | igr 3032 |    11    10    33 |    11    10    31 |     6     7    20 |
igs | igs 3023 |    12    10    33 |    11    12    31 |     6     7    20 |
jpl | jpl 2875 |    12    11    39 |    13    11    36 |     7     7    23 |
mit | mit 3072 |    10    10    41 |    11    12    43 |     7     8    18 |

Table 5.1553.1   GPS week: 1553   Day: 1   MJD: 55116.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |     8     6    26 |     5     9    23 |     6     7    20 |
emr | emr 2953 |     9     9    30 |     9     7    34 |     7     7    22 |
esa | esa 2976 |     8     7    26 |     5     8    23 |     5     5    16 |
gfz | gfz 3044 |    11    10    35 |    13    18    32 |     7     6    16 |
grg | grg 2784 |     9     9    32 |    12    11    32 |     7     5    20 |
igr | igr 3057 |     8     9    26 |     5     7    19 |     5     6    16 |
igs | igs 2959 |     8     6    27 |    10    10    33 |     6     7    17 |
jpl | jpl 2872 |     9    10    27 |     7     9    34 |     7     6    18 |
mit | mit 3072 |    10     9    34 |    10    10    40 |     8     6    15 |

Table 5.1553.2   GPS week: 1553   Day: 2   MJD: 55117.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3064 |     9    12    18 |     9     8    26 |     6     9    18 |
emr | emr 2951 |    14    15    33 |    11    14    39 |     9     9    21 |
esa | esa 2976 |    11    15    25 |     9     7    25 |     6     6    17 |
gfz | gfz 2846 |    24    26    47 |    22    46    65 |     8     6    17 |
grg | grg 2784 |    14    14    53 |    12    19    37 |     8     5    19 |
igr | igr 3025 |    11    12    48 |    10    11    31 |     5     6    16 |
igs | igs 2959 |     8    12    30 |    10    14    31 |     7     7    18 |
jpl | jpl 2775 |    14    22    43 |    10    11    28 |     8     8    22 |
mit | mit 3072 |    12    17    38 |    10    14    33 |     8     9    14 |

Table 5.1553.3   GPS week: 1553   Day: 3   MJD: 55118.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3060 |     9    10    25 |     9    11    25 |     7     7    19 |
emr | emr 2962 |    15    12    33 |    10    13    35 |     9    14    20 |
esa | esa 2976 |    10    12    27 |     9    13    26 |     6     7    15 |
gfz | gfz 3031 |    17    18    39 |    16    17    38 |     9     8    19 |
grg | grg 2784 |     9     9    32 |    12    16    33 |     8     9    19 |
igr | igr 2966 |    11    15    39 |    13    14    30 |     7     8    16 |
igs | igs 3067 |    10    10    37 |    11    13    26 |     7     8    16 |
jpl | jpl 2772 |    15    16    48 |    14    15    33 |     9    10    20 |
mit | mit 3072 |    15    13    47 |    14    17    34 |     7     8    16 |

Table 5.1553.4   GPS week: 1553   Day: 4   MJD: 55119.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2943 |     8     6    16 |     6    10    18 |     6     4    16 |
emr | emr 2850 |    16    14    36 |    10    12    33 |     8     8    18 |
esa | esa 2880 |    10    10    25 |     5     9    15 |     6     4    19 |
gfz | gfz 2954 |    16    19    35 |    14    10    24 |     8     8    26 |
grg | grg 2784 |    13    14    23 |     8     8    20 |  ----  ----  ---- |
igr | igr 2957 |     9     8    21 |     5     8    12 |     7    10    20 |
igs | igs 2930 |    13    15    22 |     8    10    18 |     8    11    24 |
jpl | jpl 2769 |    12    13    27 |    11    10    17 |     6     7    18 |
mit | mit 2976 |    14    14    33 |    12    10    34 |     8    10    23 |

Table 5.1553.5   GPS week: 1553   Day: 5   MJD: 55120.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3068 |    10     7    30 |     5     7    17 |     7     9    21 |
emr | emr 2941 |    16    15    42 |    10     9    30 |     9     9    24 |
esa | esa 2880 |    12    11    40 |     5     6    16 |     7     9    24 |
gfz | gfz 2949 |    20    19    37 |    17    13    33 |    10    11    29 |
grg | grg 2880 |    12    11    39 |     6     8    23 |  ----  ----  ---- |
igr | igr 2949 |    11     9    39 |     8     8    25 |     8     7    22 |
igs | igs 2842 |    12    11    35 |     9     8    24 |     8    10    23 |
jpl | jpl 2770 |    14    12    43 |    13    12    34 |     8     9    23 |
mit | mit 3072 |    13     8    37 |     9     9    32 |    62    33   139 |

Table 5.1553.6   GPS week: 1553   Day: 6   MJD: 55121.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |    12    13    28 |     9    15    29 |    11    12    17 |
emr | emr 2927 |    29    29    58 |    16    16    39 |    10    10    21 |
esa | esa 2880 |    26    21    49 |    10    12    32 |     6     6    16 |
gfz | gfz 3020 |    27    26    47 |    17    32    55 |    10     8    20 |
grg | grg 2880 |    32    24    52 |    11    11    40 |  ----  ----  ---- |
igr | igr 3016 |    25    22    47 |    12    13    35 |    12    15    24 |
igs | igs 2920 |    27    23    51 |    14    16    40 |     8     7    16 |
jpl | jpl 2760 |    28    25    51 |    14    14    35 |     9     9    21 |
mit | mit 3072 |    11    10    32 |    15    13    48 |    12     9    22 |


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 6.1553   GPS week: 1553   MJD: 55115.500-55121.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -24      11      67     -62     -6 |      13     18
            |      29      27      91     115      3 |       2
emr   uuuuu |     -48      12      89    -252      8 |      59     61
            |      43      17      63     136      7 |       4
esa   uuuuu |       1     -41      70     178     15 |      10     25
            |      58      32     171     128      9 |       3
gfz   uuuuu |      20      20     -43      12     -1 |       2     12
            |      20      21      38      48      6 |       2
grg   xxxxx |     -84     -26      93     -58    -10 |       1     26
            |      55      61     112     116     27 |       7
igr   xxxxx |     -35      22      90     -19     -2 |      -3     12
            |      39      25     105      86      9 |       1
irf   xxxxx |      -7       7     -25      35      1 |      -5     14
            |      14       6      31      27      2 |       2
jpl   uuuuu |     -33     -18     164    -114    -11 |      23     26
            |      22      32     167     169     11 |       2
mit   uuuuu |       3      24    -228     181     -6 |      10     16
            |      24      15      88      79      4 |       3
ngs   uuuuu |      -2       2     135     -56      0 |       1     11
            |      52      51      60      37      4 |       1
sio   uuuuu |      69      11    -242    -292     11 |      28     33
            |      32      17      97      78      3 |       3


Table 7.1553.0   GPS week: 1553   Day: 0   MJD: 55115.500

                                                         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 |     -61       3      78    -230     -2 |      16     20
emr   uuuuu |     -17      31      65     -96     16 |      58     60
esa   uuuuu |     -61     -17     -27     140     -3 |       9     24
gfz   uuuuu |      37      35      -8     -17      2 |       0     10
grg   xxxxx |     -69     -84     169    -159    -42 |      12     29
igr   xxxxx |     -46      22      15      23     -8 |      -1     10
irf   xxxxx |     -28       9     -32      -8     -1 |      -3     13
jpl   uuuuu |     -29     -11     200      24     -2 |      26     28
mit   uuuuu |     -14      33    -230      55     -5 |      15     20
ngs   uuuuu |      48     -41     139     -17     -1 |       3     11
sio   uuuuu |      24       4    -188    -392     10 |      30     35

Table 7.1553.1   GPS week: 1553   Day: 1   MJD: 55116.500

                                                         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 |     -43      34     125     -93     -4 |      13     19
emr   uuuuu |      13       4     108    -122     15 |      55     57
esa   uuuuu |     -55     -37     -55      54     15 |       8     24
gfz   uuuuu |      33      47       7     -71      5 |      -1     11
grg   xxxxx |     -55     -49     149    -153     -7 |       6     32
igr   xxxxx |     -32     -20      75     -16     -6 |      -3     12
irf   xxxxx |      -3      10     -24      52     -2 |      -6     14
jpl   uuuuu |     -61     -10     365      64     -8 |      25     27
mit   uuuuu |      15      42    -214     167    -12 |      12     18
ngs   uuuuu |      22     -29     102     -32     -3 |       1     11
sio   uuuuu |      64       4    -226    -224      7 |      27     31

Table 7.1553.2   GPS week: 1553   Day: 2   MJD: 55117.500

                                                         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 |     -23      -5      87    -165     -7 |      13     19
emr   uuuuu |     -35      17     200    -200     12 |      56     58
esa   uuuuu |     -45     -81    -106      38     19 |       8     25
gfz   uuuuu |      27      23     -78      61      4 |       1     11
grg   xxxxx |     -61     -22     111      27    -24 |       4     31
igr   xxxxx |     -56      18      38      39    -16 |      -3     12
irf   xxxxx |     -25       2      -4       3      3 |      -6     14
jpl   uuuuu |     -47     -46     304      33    -23 |      26     27
mit   uuuuu |     -35      21     -93     105     -7 |      10     17
ngs   uuuuu |      69      41      75     -22     -3 |       1     11
sio   uuuuu |      30       4     -95    -321     13 |      26     30

Table 7.1553.3   GPS week: 1553   Day: 3   MJD: 55118.500

                                                         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 |      -2      56     140     -20     -2 |      11     16
emr   uuuuu |     -73      31     107    -366     11 |      57     58
esa   uuuuu |      69     -89     195     189     24 |       6     21
gfz   uuuuu |     -20      26     -50      39      0 |       1     11
grg   xxxxx |    -116      95    -136     -97    -11 |      -2     27
igr   xxxxx |    -104      20      -6    -194     -2 |      -6     12
irf   xxxxx |      -6      -2      19      56      4 |      -8     14
jpl   uuuuu |     -22     -27    -147    -302    -17 |      23     25
mit   uuuuu |     -12       6    -135     264     -4 |       8     14
ngs   uuuuu |     -26      60      68     -97     -3 |       0     10
sio   uuuuu |      75      -6    -180    -213     15 |      25     29

Table 7.1553.4   GPS week: 1553   Day: 4   MJD: 55119.500

                                                         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 |     -45     -21     -92     126     -8 |      13     18
emr   uuuuu |    -121     -17      76    -430      6 |      60     62
esa   uuuuu |      76     -25     366     391     21 |      10     25
gfz   uuuuu |       9     -20     -92      37      1 |       3     12
grg   xxxxx |    -195     -84      36     -77     14 |      -8     20
igr   xxxxx |     -21      25     234     -60      1 |      -4     12
irf   xxxxx |       5       6     -24      57      1 |      -5     14
jpl   uuuuu |     -49     -60      88    -357    -24 |      23     25
mit   uuuuu |      10      14    -289     268     -7 |       9     15
ngs   uuuuu |     -34      56     140    -108      2 |       1     11
sio   uuuuu |     107       1    -353    -202      8 |      28     33

Table 7.1553.5   GPS week: 1553   Day: 5   MJD: 55120.500

                                                         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      17     -22     -44     -7 |      14     18
emr   uuuuu |     -62      14      -9    -378     -1 |      64     66
esa   uuuuu |      25      -8     146     299     19 |      15     29
gfz   uuuuu |      35       8     -64      50     -5 |       5     13
grg   xxxxx |     -34     -27     136     166     34 |      -4     21
igr   xxxxx |      21      26     246      45     15 |      -2     12
irf   xxxxx |       8      18     -32      31      1 |      -3     14
jpl   uuuuu |       7      37     213    -171    -12 |      22     25
mit   uuuuu |      35      43    -310     190     -4 |      10     16
ngs   uuuuu |     -83     -69     185     -76      4 |       3     12
sio   uuuuu |     104      41    -350    -321     10 |      31     36

Table 7.1553.6   GPS week: 1553   Day: 6   MJD: 55121.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -18      -7     155      -9    -10 |      11     16
emr   uuuuu |     -45       6      77    -172     -2 |      64     66
esa   uuuuu |      -3     -29     -33     135      8 |      14     28
gfz   uuuuu |      20      23     -17     -16    -13 |       4     13
grg   xxxxx |     -59     -10     184    -110    -33 |       0     21
igr   xxxxx |     -11      65      28      31     -1 |      -3     12
irf   xxxxx |      -2       6     -81      51      1 |      -5     14
jpl   uuuuu |     -34      -5     125     -89      7 |      19     23
mit   uuuuu |      21      12    -324     218     -1 |       7     14
ngs   uuuuu |     -11      -2     236     -42      5 |       1     10
sio   uuuuu |      76      28    -305    -369     12 |      32     36



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