[IGSREPORT-9252] Wk 1163 IGS Final Orbits

robert.weber at aiub.unibe.ch robert.weber at aiub.unibe.ch
Sat May 11 02:55:22 PDT 2002


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IGS Electronic Report   11 May 02:55:27 PDT 2002      Message Number 9252
******************************************************************************

Author:  AC Coordinator / AIUB/CODE

Final IGS Orbit Combination - Week 1163   (Apr 21, 2002 - Apr 27, 2002)

Contacts: R. Weber (rweber at luna.tuwien.ac.at),
          U. Hugentobler (urs.hugentobler at aiub.unibe.ch),
          H. Bock (bock at aiub.unibe.ch), R. Dach (dach at aiub.unibe.ch)

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS11637.SUM).


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:

 IGS11630-6.SP3  IGS GPS ephemeris files for days 0-6, week 1163 in SP3 format.
 IGS11637.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS11637.SUM    Complete report.


REMARKS on IGS Final Orbit Combination:

1. The centres used in the clock combination are COD, EMR, ESA, GFZ 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.

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.

                  Day | Centre | PRN/STA list
                  ----+--------+---------------
                   0  |  ESA   |  4 10 31 AUCK IISC TIDB YAR2
                   0  |  GFZ   |  MALI
                   0  |  JPL   |  YAR2
                   1  |  COD   |  GUAM
                   1  |  ESA   |  24 ALBH ALGO AUCK MCM4
                   1  |  GFZ   |  MAS1
                   2  |  ESA   |  18 20 21 23 ALBH AUCK TIDB TSKB
                   2  |  GFZ   |  MALI
                   2  |  JPL   |  MCM4 SYOG YAR2
                   3  |  COD   |  IISC
                   3  |  EMR   |  20 21
                   3  |  ESA   |  10 21 22 28 ALBH ALGO AUCK MALI
                   3  |  JPL   |  21
                   4  |  ESA   |  10 ALBH AUCK
                   5  |  COD   |  15 MCM4
                   5  |  EMR   |  FAIR
                   5  |  ESA   |  10 23 31 ALBH ALGO AUCK FORT IISC MDO1 YAR2
                   5  |  GFZ   |  MALI VILL
                   5  |  JPL   |  FAIR YAR2
                   6  |  EMR   |  10 23
                   6  |  ESA   |  2 18 ALGO IRKT TIDB
                   6  |  GFZ   |  BAHR IRKT

5. New clock offsets and drifts were estimated for centres showing reference
   clock resets.  Note that only the largest clock offset and drift are output
   to the summary file.  However, the clock combination and the listed RMS
   include all the clock segments.  In summary, the following clock
   shifts/resets were noticed and accounted for:

                  Day | Centre |  Time  |  Jump
                  ----+--------+--------+-------------
                   6  |  JPL   | ~10:00 | ~ 0.30 ns

6. The following orbit solutions were excluded from the combination because 
   they were biasing the weighted average (generally indicated by long arc RMS).
   They were still used for statistics computation.

                  Day | Centre | PRN list
                  ----+--------+---------------
                   3  |  ESA   |  2
                   4  |  NGS   |  21

7. Velocity changes were estimated for the following satellites to
   alleviate the effects of modeling problems, experienced by all centres,
   in the Long Arc (LA) process:

                  ---------+------------
                  PRN list | 2 17 21 
                  ---------+------------

8. Starting on 02-Dec-2001 (GPS Week 1143, day 0, MJD 52245) all IGS 
   products, including the IGS combined orbits, are based on the IGS
   realization of the ITRF2000 reference frame (IGS00). For more information
   see IGSMAIL #3605.

9. Small rotations were applied to the all AC orbit and ERP values in order
   to align them to the IGS00. 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 
   IGS01P37_RS54.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 |   (cm)   (cm)   (cm)   (mas)  (mas)  (mas)   (ppb) 
     -------+---------------------------------------------------
       COD  |  +0.99  +0.67  -0.04   +0.00  +0.01  -0.04   +1.57
       EMR  |  -1.27  +0.52  +0.10   +0.00  -0.01  -0.05   +0.81
       ESA  |  -1.22  +1.23  +0.99   +0.10  +0.01  -0.01   +0.60
       GFZ  |  -0.27  +0.04  +0.02   -0.08  +0.15  -0.04   +0.80
       JPL  |  +0.20  +0.42  +0.86   -0.01  +0.00  -0.03   +0.94
       NGS  |  -0.55  -1.50  -0.35   -0.14  +0.07  +0.02   +1.30
       SIO  |  +0.59  +0.36  +4.19   -0.06  +0.08  -0.05   +0.87

10.Starting on 22-Oct-2000 (GPS Week 1085, day 0; mjd=51839) all IGS clock
   products are based on the new clock combination scheme which uses the
   the clock RINEX files as input if available, otherwise SP3 clocks are used. 
   The navigation solution is still based on the SP3 clocks but this will
   soon adopt the clock RINEX files as well.

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

12.Starting on 29-Nov-1998 (GPS Week 986, day 0; MJD 51146) all IGS clock
   products reflect the use of the following antenna phase center offsets
   (satellite fixed reference frame):

     Block II/IIA: 0.279 0.000 1.023  X, Y, Z in meters
     Block IIR   : 0.000 0.000 0.000  X, Y, Z in meters

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS11637.SUM).


Table 1: Week 1163 summary.                       (Apr 21, 2002 - Apr 27, 2002)

Table 1.1163.a   GPS week: 1163   MJD: 52385.0-52391.0

         Mean and standard deviations of transformation parameters.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         STA  - Mean number of stations in the daily solutions.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00 0.00 -0.02  0.03 -0.09 -0.2 0.02 0.02 |   -0.1   -0.3   0.06
        |0.00 0.00 0.00  0.03  0.02  0.07  0.0           |    0.5    0.5
emr  37 |-.01 0.00 0.00 -0.05  0.12 -0.07  0.4 0.04 0.04 | 1532.1   23.4   0.11
        |0.01 0.01 0.03  0.04  0.08  0.09  0.0           |   49.8    3.1
esa  64 |0.00 0.00 0.00 -0.21  0.02  0.13  0.2 0.07 0.06 | 1528.7   23.0   0.08
        |0.00 0.00 0.01  0.09  0.09  0.10  0.1           |   52.1    3.4
gfz  79 |0.00 0.00 0.00  0.06 -0.06  0.07 -0.1 0.02 0.02 |   -0.2    0.1   0.05
        |0.00 0.00 0.00  0.02  0.02  0.05  0.1           |    0.3    0.5
igr  n/a|0.00 0.00 0.00 -0.08  0.03 -0.02  0.0 0.02 0.02 |   -0.2    0.1   0.06
        |0.00 0.00 0.00  0.03  0.04  0.06  0.1           |    0.2    0.4
jpl  60 |0.00 0.01 0.01 -0.02  0.01 -0.08  0.2 0.03 0.03 |   -6.4   -6.9   0.05
        |0.00 0.01 0.01  0.03  0.03  0.07  0.0           |   12.5   17.1
ngs  77 |0.00-0.01-0.01  0.27 -0.02  0.03  0.2 0.07 0.07 |    0.0   -0.1   4.85
        |0.00 0.00 0.01  0.05  0.06  0.21  0.2           |    0.3    0.7
sio  39 |0.00 0.00-0.01 -0.03 -0.06  0.18 -0.2 0.05 0.05 |    0.0    0.0   0.00
        |0.00 0.00 0.00  0.07  0.03  0.38  0.1           |    0.0    0.0

Table 1.1163.b   GPS week : 1163   MJD: 52385.0-52391.0

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: cm.

              Day of GPS week
 PRN  |   0   1   2   3   4   5   6 |  Remarks
------|-----------------------------|------------------------------------------
   1  |   1   1   1   1   1   1   1 |
   2  |   2   1   1   3   2   2   1 |
   3  |   1   1   1   1   2   1   1 |
   4  |   1   1   1   1   1   1   1 |
   5  |   1   1   1   1   1   1   1 |
   6  |   1   1   1   1   1   1   1 |
   7  |   1   1   1   1   1   1   1 |
   8  |   1   1   1   1   1   1   1 |
   9  |   1   1   1   2   1   1   1 |
  10E |   2   2   1   1   1   1   1 |
  11  |   2   2   2   2   2   2   2 |
  13  |   2   2   2   2   2   2   2 |
  14  |   2   2   2   2   2   2   2 |
  15  |   1   2   1   1   2   1   1 |
  17  |   1 ---   2   2   7   2   1 |
  18E |   1   2   2   2   2   2   2 |
  20E |   2   2   2   2   2   2   2 |
  21E |   2   1   2   2  12   2   1 |
  22  |   1   1   1   1   1   1   1 |
  23E |   1   1   2   2   2   2   2 |
  24  |   2   1   1   1   1   1   1 |
  25  |   1   1   1   1   1   1   1 |
  26  |   1   1   1   1   1   1   1 |
  27  |   1   1   1   1   1   1   1 |
  28E |   2   2   2   2   2   2   2 |
  29  |   1   1   1   1   1   1   1 |
  30E |   1   1   1   1   1   1   1 |
  31  |   2   2   2   1   2   2   1 |

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.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

Table 2.1163.0   GPS week: 1163   Day: 0   MJD: 52385.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00 0.00 -0.06  0.04 -0.14 -0.2 0.02 0.02 |    0.1    0.1   0.05
        |                0.00  0.02                      |
emr  37 |0.00 0.00 0.00 -0.06  0.06 -0.08  0.4 0.04 0.04 | 1461.5   28.1   0.06
        |                0.05 -0.12                      |
esa  64 |0.01-0.01 0.01 -0.15  0.11  0.20  0.0 0.07 0.06 | 1461.9   28.6   0.09
        |                0.06  0.03                      |
gfz  75 |0.00-0.01 0.00  0.03 -0.07  0.04  0.0 0.02 0.02 |   -0.6    1.1   0.04
        |                0.02 -0.23                      |
igr  n/a|0.00 0.00 0.00 -0.09 -0.04 -0.12 -0.1 0.02 0.02 |    0.1   -0.1   0.04
        |                0.06  0.03                      |
jpl  60 |-.01 0.02 0.01  0.02  0.03 -0.11  0.1 0.03 0.03 |   -2.5   -4.3   0.04
        |               -0.04 -0.01                      |
ngs  77 |0.00-0.02-0.01  0.34 -0.09  0.21  0.0 0.07 0.07 |   -0.1    0.7   4.67
        |               -0.19 -0.28                      |
sio  39 |0.00 0.00-0.01  0.01 -0.13  0.52 -0.4 0.05 0.05 |    0.0    0.0   0.00
        |                0.07  0.06                      |

Table 2.1163.1   GPS week: 1163   Day: 1   MJD: 52386.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00-0.01 -0.01  0.05 -0.16 -0.2 0.02 0.02 |    0.4   -0.7   0.05
        |               -0.01 -0.02                      |
emr  36 |0.00 0.01 0.02 -0.03  0.04 -0.26  0.5 0.05 0.05 | 1485.6   25.4   0.07
        |                0.06  0.01                      |
esa  64 |0.01 0.00 0.00 -0.13  0.05  0.28  0.2 0.07 0.06 | 1473.2   25.2   0.08
        |               -0.06  0.01                      |
gfz  81 |0.00 0.00 0.00  0.07 -0.05  0.11 -0.1 0.02 0.02 |    0.3    0.2   0.05
        |                0.05 -0.22                      |
igr  n/a|0.00 0.00 0.00 -0.06  0.04 -0.06  0.0 0.02 0.02 |   -0.2    0.1   0.07
        |                0.03  0.02                      |
jpl  60 |0.00 0.00 0.01 -0.03  0.00 -0.17  0.2 0.03 0.03 |  -34.0  -44.8   0.04
        |                0.00  0.04                      |
ngs  77 |0.00-0.01-0.02  0.25 -0.02  0.17  0.1 0.07 0.07 |    0.6   -1.4   4.79
        |               -0.05 -0.29                      |
sio  40 |0.00 0.00-0.02 -0.08 -0.04  0.54 -0.3 0.05 0.05 |    0.0    0.0   0.00
        |                0.06  0.00                      |

Table 2.1163.2   GPS week: 1163   Day: 2   MJD: 52387.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00 0.00 -0.02  0.00 -0.14 -0.2 0.02 0.02 |    0.1   -0.6   0.06
        |               -0.03 -0.02                      |
emr  38 |-.01 0.00 0.00  0.02  0.15 -0.06  0.4 0.04 0.04 | 1511.5   21.9   0.06
        |               -0.15 -0.16                      |
esa  64 |0.01 0.00 0.00 -0.31  0.08  0.20  0.2 0.08 0.07 | 1511.4   21.7   0.09
        |               -0.01  0.09                      |
gfz  80 |0.00-0.01 0.00  0.07 -0.07  0.06 -0.1 0.02 0.02 |   -0.1   -0.5   0.04
        |               -0.01 -0.19                      |
igr  n/a|0.00-0.01 0.00 -0.03  0.01 -0.07 -0.1 0.03 0.03 |   -0.1   -0.3   0.07
        |               -0.05 -0.01                      |
jpl  59 |0.00 0.01 0.01 -0.06  0.06 -0.17  0.2 0.03 0.03 |   -3.4   -4.4   0.05
        |               -0.03 -0.03                      |
ngs  77 |0.00 0.00 0.00  0.24 -0.06  0.23  0.2 0.07 0.07 |   -0.3    0.3   4.97
        |               -0.12 -0.35                      |
sio  40 |0.00 0.00-0.01 -0.04 -0.06  0.48 -0.3 0.05 0.05 |    0.0    0.0   0.00
        |                0.03 -0.04                      |

Table 2.1163.3   GPS week: 1163   Day: 3   MJD: 52388.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00-0.01 -0.06  0.05 -0.16 -0.2 0.02 0.02 |   -0.4    0.2   0.06
        |               -0.01 -0.04                      |
emr  37 |-.01 0.00 0.05 -0.04  0.10  0.02  0.4 0.05 0.05 | 1533.9   18.2   0.15
        |                0.00 -0.07                      |
esa  64 |0.00 0.00 0.00 -0.15 -0.13  0.10  0.2 0.08 0.06 | 1521.1   18.1   0.07
        |               -0.07  0.20                      |
gfz  79 |0.00 0.00 0.00  0.05 -0.06  0.00 -0.1 0.02 0.02 |   -0.4    0.4   0.05
        |                0.04 -0.19                      |
igr  n/a|0.00 0.00 0.00 -0.12  0.04  0.01  0.1 0.02 0.02 |   -0.3    0.2   0.05
        |                0.02  0.00                      |
jpl  60 |0.01 0.01 0.00  0.01  0.04 -0.07  0.2 0.03 0.03 |    2.8    1.4   0.05
        |                0.04 -0.04                      |
ngs  77 |0.00-0.01-0.01  0.30  0.07  0.14  0.4 0.07 0.07 |   -0.2   -0.1   4.76
        |               -0.17 -0.27                      |
sio  40 |0.00 0.00-0.02 -0.04 -0.05  0.34 -0.2 0.04 0.04 |    0.0    0.0   0.00
        |                0.13 -0.01                      |

Table 2.1163.4   GPS week: 1163   Day: 4   MJD: 52389.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00 0.00  0.01  0.01 -0.02 -0.3 0.02 0.02 |   -1.0   -1.0   0.06
        |                0.00 -0.03                      |
emr  38 |-.01 0.00 0.00 -0.09  0.28  0.01  0.4 0.04 0.04 | 1553.7   23.3   0.08
        |                0.09 -0.23                      |
esa  64 |0.00 0.00 0.00 -0.14 -0.09  0.09  0.3 0.07 0.06 | 1553.2   23.3   0.08
        |               -0.01  0.14                      |
gfz  77 |0.00 0.00 0.01  0.07 -0.09  0.02 -0.1 0.02 0.02 |    0.0   -0.4   0.06
        |                0.08 -0.18                      |
igr  n/a|0.00 0.00 0.00 -0.11  0.09  0.00  0.0 0.02 0.02 |   -0.6    0.9   0.07
        |                0.02 -0.10                      |
jpl  60 |0.00 0.00 0.00 -0.03 -0.01 -0.03  0.1 0.03 0.03 |   -6.3    5.5   0.05
        |               -0.01 -0.01                      |
ngs  77 |0.00-0.01-0.03  0.19  0.03 -0.05  0.7 0.08 0.08 |   -0.3    0.2   4.97
        |               -0.06 -0.26                      |
sio  33 |0.00 0.00-0.02 -0.06 -0.07 -0.03 -0.1 0.07 0.07 |    0.0    0.0   0.00
        |                0.16 -0.02                      |

Table 2.1163.5   GPS week: 1163   Day: 5   MJD: 52390.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.01 0.00 0.00  0.00  0.04 -0.01 -0.3 0.02 0.02 |    0.1   -0.2   0.06
        |               -0.02 -0.02                      |
emr  38 |-.01 0.00-0.01 -0.08  0.08 -0.07  0.4 0.04 0.04 | 1577.6   24.6   0.08
        |                0.03 -0.10                      |
esa  64 |0.01-0.01 0.00 -0.33  0.01  0.00  0.2 0.08 0.06 | 1578.3   23.7   0.08
        |                0.05  0.14                      |
gfz  81 |0.00 0.00 0.00  0.07 -0.04  0.13 -0.1 0.02 0.02 |   -0.2    0.1   0.05
        |                0.04 -0.23                      |
igr  n/a|0.00 0.00 0.00 -0.06  0.02  0.06  0.0 0.02 0.02 |   -0.1    0.0   0.05
        |                0.01 -0.08                      |
jpl  60 |0.00 0.00 0.01 -0.01 -0.01 -0.04  0.2 0.03 0.03 |   -1.7   -1.2   0.04
        |               -0.01  0.05                      |
ngs  77 |0.00-0.01 0.00  0.32 -0.10 -0.29  0.0 0.08 0.08 |    0.0    0.2   4.88
        |               -0.02 -0.17                      |
sio  40 |0.00 0.00-0.01 -0.10 -0.05 -0.22 -0.1 0.05 0.05 |    0.0    0.0   0.00
        |                0.15 -0.04                      |

Table 2.1163.6   GPS week: 1163   Day: 6   MJD: 52391.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  137|0.00 0.00 0.00 -0.02  0.04 -0.01 -0.2 0.02 0.02 |    0.0    0.0   0.05
        |               -0.05 -0.01                      |
emr  37 |-.01-0.01-0.05 -0.08  0.10 -0.02  0.4 0.05 0.05 | 1601.2   22.7   0.18
        |                0.07 -0.06                      |
esa  64 |0.00 0.00 0.00 -0.29  0.09  0.03  0.3 0.07 0.06 | 1601.7   20.6   0.09
        |               -0.01  0.13                      |
gfz  82 |0.00 0.00 0.00  0.06 -0.04  0.13 -0.1 0.02 0.02 |   -0.1   -0.1   0.05
        |                0.03 -0.24                      |
igr  n/a|0.00 0.00 0.00 -0.10  0.06  0.04  0.0 0.02 0.02 |    0.0    0.0   0.06
        |               -0.01 -0.04                      |
jpl  60 |0.00 0.00 0.02 -0.04 -0.01  0.02  0.2 0.03 0.03 |    0.0   -0.2   0.07
        |                0.00  0.01                      |
ngs  77 |-.01-0.01 0.00  0.27  0.01 -0.19  0.2 0.08 0.08 |    0.1   -0.3   4.92
        |               -0.01 -0.26                      |
sio  41 |0.00 0.01-0.01  0.11 -0.03 -0.37 -0.2 0.05 0.05 |    0.0    0.0   0.00
        |                0.10 -0.04                      |

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.
         "X" stands for excluded from the combination 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","MD" stands for median of the centre's satellite RMS.

         Units: cm.

Table 3.1163.0   GPS week: 1163   Day: 0   MJD: 52385.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   2   3   6   2   2   2   7   3    1 |    4   5   6   3   5   7  14   7    6
  X2  |   4   5 ---   4   2   6   7   5    2 |   15  14 ---  13  13  16  21  15   14
   3  |   2   3   7   2   2   2  10   3    1 |    2   6   7   3   7   7  17   8    7
   4  |   2   5   8   2   1   3   4   6    1 |    2   8   7   3   7   6  16   7    6
   5  |   2   3   7   3   1   2   5   5    1 |    3   6   8   3   7   7  16   8    6
   6  |   1   4   4   2   1   2   8   5    1 |    2   5   5   2   6   5  16   7    5
   7  |   2   5   7   2   4   3   6   4    1 |    2   7   7   3   7   5  15   5    5
   8  |   2   3   7   1   2   2   6   3    1 |    6   6   7   5   7   8  14   9    8
   9  |   2   4   4   2   2   1   7   7    1 |    6   6  10   5   8   8  15  12    8
  10E |   2   5   7   3   2   2  11   4    2 |    3   7   6   5   5   6  14   6    5
  11  |   2   7  10   2   2   4   9   6    2 |    3   6   5   3   6   8  17   9    6
  13  |   2   5   8   2   2   5  10   6    2 |    3   6   8   4   6   7  14   8    6
  14  |   2   4   7   2   1   4   8   5    2 |    3   6  11   4   7   6  16   7    7
 X15  |   2   3 ---   2   2 ---   5   2    1 |    9  10 ---   9  10 ---  16  10   10
 X17  |   2   2 ---   2   2 ---   5   4    1 |    5   6 ---   8  12 ---   7   6    6
  18E |   2   5   4   3   1   3   6   5    1 |    1   6   5   3   6   5  15   7    6
  20E |   2   4  13   3   1   3   5   4    2 |    2   5   9   5   6   7  16   7    6
  21E |   2   4   4   3   3   2  10   5    2 |    6   8   2   6   9   9   9   6    9
  22  |   2   3   6   2   2   1   5   4    1 |    2   5   7   3   5   7  14   9    6
  23E |   2   4   8   3   2   3   6   4    1 |    5   8  10   7   8   8  16   9    8
  24  |   2   5   6   4   2   2   7   5    2 |    4   6   8   5   7   7  15   6    6
  25  |   1   3   4   1   2   2   4   4    1 |    6   4   6   6   5   7  14   7    6
  26  |   2   4   3   2   2   1   7   4    1 |    4   6   8   3   7   6  16  10    7
  27  |   2   3   6   1   1   2   6   2    1 |    5   8   8   5   7   8  14   8    8
  28E |   2   6   9   2   2   4   8  10    2 |    2   4   9   3   6   5  14   8    5
  29  |   2   4   3   2   1   1   9   3    1 |    4   6   7   4   6   6  15   7    7
  30E |   2   2   7   2   1   2   6   6    1 |    4   6   9   5   8   7  16   9    7
  31  |   2   5   9   2   2   2   5   5    2 |    3   6   7   3   8   8  17   9    7
------|--------------------------------------|--------------------------------------
 RMS  |   2   4   7   2   2   3   7   5      |T   4   6   7   5   7   7  15   8    7
 WRMS |   2   4   6   2   2   3   7   5      |NE  4   6   7   5   7   7  14   8    6
 MEDI |   2   4   7   2   2   2   7   5      |MD  4   6   7   4   7   7  15   8    6

Table 3.1163.1   GPS week: 1163   Day: 1   MJD: 52386.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   2   3   4   1   2   2   4   3    1 |    3   4   3   3   4   4   6   4    3
   2  |   2   3   7   2   2   2   4   6    1 |    5   7   5   6   7   5   9   6    6
   3  |   2   4   5   1   2   2   6   4    1 |    2   3   5   3   4   4   6   5    2
   4  |   1   5   3   2   1   2   5   4    1 |    1   4   3   3   3   3   5   4    2
   5  |   2   3   4   2   2   2   7   4    1 |    2   5   4   2   3   4   6   5    3
   6  |   1   3   4   2   2   3   9   5    1 |    1   3   3   3   3   3   6   4    2
   7  |   2   5   4   1   1   3   7   3    1 |    1   4   5   3   3   3   7   3    2
   8  |   2   4   8   2   2   2   8   4    1 |    3   3   4   3   4   4   9   5    3
   9  |   1   3   7   2   2   1   6   5    1 |    4   5   8   3   4   5   8   5    4
  10E |   2   5  11   2   3   2   8   3    2 |    3   7   7   4   4   3   6   3    4
  11  |   2   4  11   2   2   4  10   8    2 |    2   5   9   3   3   4   6   7    3
  13  |   2   7   8   2   2   4   8   5    2 |    2   6   5   3   3   4   5   5    3
  14  |   3   7   8   2   2   4   8   7    2 |    2   6   4   2   3   3   6   7    3
 X15  |   3   7 ---   3   4 ---   8   4    2 |   16  17 ---  15  16 ---  17  15   15
  18E |   2   5   6   2   3   4   8   6    2 |    1   4   8   2   4   3   9   5    2
  20E |   2   8  10   2   2   6   6   5    2 |    2   7  10   3   4   5   6   4    3
  21E |   2   5   6   1   2   2   7   5    1 |    6   8   4   6   9   9   8   7    9
  22  |   2   3   5   2   3   2   7   7    1 |    1   4   4   4   5   3   9   6    3
  23E |   2   5   6   3   4   3   7   4    1 |    4   6   7   5   5   5   7   5    4
  24  |   2   4   8   2   2   2   5   4    1 |    6   6  10   7   7   7   6   6    6
  25  |   2   5   2   1   1   2   5   3    1 |    3   3   4   4   3   5   8   5    3
  26  |   2   5   2   2   3   2   3   3    1 |    3   4   3   2   4   3   6   5    3
  27  |   2   3   4   1   1   2   7   4    1 |    3   3   4   3   3   4   9   5    3
  28E |   2   5  13   3   3   3   6   9    2 |    2   4  12   4   5   3   7   8    3
  29  |   1   4   3   1   2   2   7   3    1 |    4   7   3   4   4   5   7   6    5
  30E |   2   3   8   1   2   2   4   3    1 |    3   5   7   4   4   5   6   6    4
 X31  |   2   6 ---   2   4   2   8 ---    2 |    3   5 ---   3   5   4  10 ---    3
------|--------------------------------------|--------------------------------------
 RMS  |   2   5   7   2   2   3   7   5      |T   4   6   6   4   5   4   7   6    4
 WRMS |   2   5   6   2   2   3   7   5      |NE  5   7   5   5   6   4   8   7    5
 MEDI |   2   5   6   2   2   2   7   4      |MD  3   5   5   3   4   4   7   5    3

Table 3.1163.2   GPS week: 1163   Day: 2   MJD: 52387.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   1   4   5   1   2   2   8   3    1 |    3   4   3   3   4   3  11   5    2
  X2  |   2   4 ---   2   4   2   5   4    1 |    6   5 ---   6   6   5  10   5    5
   3  |   2   4   6   2   2   2   6   5    1 |    2   4   6   3   4   4  12   5    3
   4  |   1   2   3   2   3   2   7   2    1 |    2   5   5   2   4   3  11   3    3
   5  |   1   2   4   1   3   2   6   3    1 |    3   4   6   3   4   5  10   6    3
   6  |   1   3   3   1   2   2  10   4    1 |    1   3   3   2   4   3  11   5    2
   7  |   1   3   6   1   3   3   6   4    1 |    2   5   5   3   4   4   9   4    3
   8  |   2   4   3   1   2   2   6   3    1 |    4   6   4   4   5   5  10   5    4
   9  |   1   3   7   2   3   1   8   5    1 |    5   5   7   5   6   6   9   7    5
  10E |   2   4   6   2   2   2   7   2    1 |    2   5   6   4   4   3  10   3    3
  11  |   3   5  10   2   4   4   8   9    2 |    2   5  11   3   5   5  10   7    3
  13  |   2   5  12   2   2   4   6   5    2 |    3   4  10   4   6   4  11   6    3
  14  |   2   4   9   2   3   5   9   7    2 |    2   5   7   3   4   4   9   6    2
 X15  |   1   3 ---   2   3 ---   6   4    1 |   15  13 ---  15  15 ---  17  15   15
 X17  |   2   3 ---   2   2 ---  12   3    2 |    3  10 ---  11   7 ---  10   3   11
  18E |   2   3  14   2   3   4   8   6    2 |    1   4  13   2   5   3  11   5    3
  20E |   3   6  13   3   2   5   7   4    2 |    3   7  13   4   5   5  10   4    4
  21E |   2   4  13   2   3   2   7   4    2 |    6   7   4   6  10   9   9   6    9
  22  |   1   3  10   1   3   2   7   5    1 |    2   5   7   3   4   4  10   4    2
  23E |   1   4   8   3   3   3   8   5    2 |    5   6   7   6   6   6  11   6    5
  24  |   1   2   6   2   2   2   5   3    1 |    4   4   6   5   6   5   9   6    5
  25  |   2   3   4   2   3   2   8   6    1 |    4   6   3   5   3   5   8   7    4
  26  |   1   4   4   2   3   1   6   4    1 |    4   4   5   4   5   4   9   5    3
  27  |   2   5  11   2   3   2   5   3    1 |    4   6  12   4   4   4   8   5    4
  28E |   2   5   9   3   2   3   7  10    2 |    2   7   8   3   3   3   9   7    3
  29  |   1   3   6   1   3   2   7   3    1 |    4   5   7   4   6   5  11   5    4
  30  |   1   3   8   1   3   2   8   3    1 |    2   3   7   3   4   4  12   5    3
 X31  |   3   4 ---   3   5   3  10 ---    2 |    4   5 ---   4   5   4  10 ---    3
------|--------------------------------------|--------------------------------------
 RMS  |   2   4   8   2   3   3   7   5      |T   4   5   7   5   5   4  10   5    5
 WRMS |   2   4   7   2   3   3   7   5      |NE  5   6   7   6   6   4  10   6    6
 MEDI |   2   4   7   2   3   2   7   4      |MD  3   5   7   4   5   4  10   5    3

Table 3.1163.3   GPS week: 1163   Day: 3   MJD: 52388.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   1   4   8   1   2   2   6   3    1 |    3   6   5   2   2   4   9   4    3
  X2  |   2   5  26   1   2 ---   4   3    3 |    6   6  15   6   6 ---  10   6    6
   3  |   2   4   5   1   2   2   7   3    1 |    2   4   4   2   3   4  10   4    2
   4  |   2   5   3   1   2   2   4   4    1 |    2   5   5   2   4   3  10   3    2
   5  |   2   3   6   2   2   3   8   3    1 |    3   5   5   4   5   6  12   7    4
   6  |   2   4   8   1   1   3   4   3    1 |    2   4   8   2   3   4   9   4    2
   7  |   2   4   6   1   1   2   5   3    1 |    2   5   6   3   4   4  11   5    3
   8  |   2   4  10   2   2   2   6   3    1 |    6   5   7   5   5   5  11   8    6
   9  |   2   4   6   1   3   5  10   7    2 |    7   8   9   6  10  10  13   7    7
  10E |   2   4   4   2   2   3   8   3    1 |    2   5   3   2   3   4   9   5    2
  11  |   3   5  11   2   2   4   9   4    2 |    2   7   8   2   5   4  10   7    3
  13  |   2   6   9   2   2   4   6   5    2 |    2   5   9   4   4   4  10   7    3
  14  |   2   6   6   1   2   4   8   7    2 |    3   6   6   3   5   4  11   6    4
 X15  |   1   4 ---   1   2 ---   6   3    1 |   11  13 ---  12  12 ---  14  11   12
 X17  |   2   4   7   2   1 ---  10   4    2 |    3  14   1  13  17 ---  16   3   14
  18E |   2   7   8   1   2   4   8   4    2 |    1   5   9   1   2   3  11   4    2
  20E |   2  10  16   2   1   5   5   4    2 |    3  10  14   4   3   4  10   4    3
  21E |   2   5  12   1   2   2   9   4    2 |    7   7   4   6   9   9   8   7    9
  22  |   1   3  10   2   2   2   5   4    1 |    2   4   7   3   2   4   9   5    2
  23E |   2   5   9   3   3   4   9   5    2 |    5   5   7   5   5   5  10   7    4
  24  |   2   4   4   2   2   2   4   3    1 |    3   4   6   3   4   4   9   4    3
  25  |   2   3   3   1   2   2   7   4    1 |    5   4   4   5   4   5   8   7    4
  26  |   2   5   2   2   2   2   6   5    1 |    5   4   6   4   5   6  12   8    6
  27  |   1   4   2   2   1   2   6   3    1 |    4   4   5   4   4   5   9   5    4
  28  |   2   6  14   3   2   4   6   7    2 |    4   8  10   4   6   5   9  10    5
  29  |   1   4   2   1   1   2   6   3    1 |    7   9   8   6   8   7  12   9    8
  30  |   2   4   5   1   2   3   7   4    1 |    2   4   5   3   3   5   9   5    3
  31  |   2   5   8   2   3   2   7   4    1 |    2   7   5   2   5   4  10   7    3
------|--------------------------------------|--------------------------------------
 RMS  |   2   5   8   2   2   3   7   4      |T   4   6   7   5   6   5  10   6    5
 WRMS |   2   5   6   2   2   3   7   4      |NE  4   7   6   5   7   4  10   7    6
 MEDI |   2   4   7   2   2   2   6   4      |MD  3   5   6   4   5   4  10   6    4

Table 3.1163.4   GPS week: 1163   Day: 4   MJD: 52389.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   2   5   7   2   2   2   5   4    1 |    2   5   3   2   3   3   7   5    2
   2  |   2   2  11   2   2   2   7   5    2 |    6   6   7   5   6   4   9   6    5
   3  |   3   2   6   3   3   4   7   7    2 |    2   3   4   5   3   3   8   8    3
   4  |   1   5   3   2   2   2   8   5    1 |    2   4   3   3   3   3   9   6    2
   5  |   2   4   8   1   2   2   9   4    1 |    2   5   7   2   3   5  10   5    3
   6  |   2   5   4   2   1   3   9   6    1 |    1   4   5   3   3   3   8   7    2
   7  |   1   3   3   2   2   2   6   9    1 |    1   3   4   3   3   3   8   5    2
   8  |   2   4   5   2   2   2   9   7    1 |    4   6   4   4   4   4   9   6    4
   9  |   2   3   5   2   4   1   6   7    1 |    5   4   7   3   5   6  10   9    5
  10E |   1   4   8   2   2   2  10   6    1 |    2   5   5   3   3   3  11   6    3
  11  |   3   6  10   2   2   4   9   7    2 |    2   4  10   3   3   4   9   6    3
  13  |   2   4   9   2   3   5   8   5    2 |    2   3   5   3   3   3   8   6    3
  14  |   2   7   6   2   3   4   7   5    2 |    3   4   5   3   5   3   8   4    3
 X15  |   2   6 ---   2   4 ---   9   5    2 |    5   7 ---   5   6 ---  10   7    5
 X17  | ---  11 ---   5   8 ---  22 ---    7 |  ---  18 ---  21  19 ---  26 ---   21
  18E |   2   4   9   2   3   3   8   8    2 |    1   4   8   3   3   4  11   4    3
 X20E |   2   5   9   2   2 ---   5   6    2 |    3   7  10   4   3 ---   7   4    3
 X21E | ---   5 --- ---  19   3  32 ---   12 |  ---   8 --- ---  18  12  24 ---   12
  22  |   2   4   7   1   2   2   5   7    1 |    2   4   5   2   3   4   7   5    2
  23E |   2   5   7   3   3   4  11   7    2 |    6   8   9   7   5   6  14   6    6
  24  |   2   4   6   3   3   2   7   4    1 |    4   8   4   5   4   4  10   8    4
  25  |   2   3   5   2   2   1   7   8    1 |    3   3   3   4   3   5   8   6    3
  26  |   2   5   4   2   2   2   8   6    1 |    4   6   4   3   5   4  11   5    4
  27  |   2   4   5   2   2   2  10   6    1 |    3   6   4   3   4   4   7   5    3
  28  |   2   5   4   2   3   4   9   9    2 |    2   5   6   3   4   3   9   7    3
  29  |   2   5   5   2   2   2   8   7    1 |    5   6   8   4   5   5   9   6    5
  30  |   2   4   6   1   2   2   6   4    1 |    2   4   4   2   2   5   7   4    2
  31  |   3   5   8   2   3   3   8   9    2 |    2   6   6   2   4   4   9   7    3
------|--------------------------------------|--------------------------------------
 RMS  |   2   4   7   2   2   3   8   7      |T   3   6   5   5   6   4  11   6    5
 WRMS |   2   4   6   2   2   3   8   7      |NE  3   7   5   6   6   4  10   5    6
 MEDI |   2   5   6   2   2   2   8   6      |MD  2   5   5   3   4   4   9   6    3

Table 3.1163.5   GPS week: 1163   Day: 5   MJD: 52390.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   2   6   9   2   2   2   6   3    1 |    2   5   4   2   4   4   6   5    3
   2  |   3   2  13   1   2   2   7   4    2 |    8   7   9   7   7   5  10   6    7
   3  |   3   2   7   2   2   3  10   3    1 |    2   3   5   4   2   4   7   5    2
   4  |   2   4   5   1   1   2   8   7    1 |    2   5   4   3   3   3   8   3    3
   5  |   2   3  10   2   2   2   9   5    1 |    2   3   7   3   3   6   9   7    3
   6  |   1   2   4   1   2   3   9   4    1 |    1   4   3   2   3   4   7   4    2
   7  |   1   2   4   1   1   2   7   5    1 |    1   3   3   3   3   3   7   4    2
   8  |   3   3   5   1   1   1   7   3    1 |    4   5   6   3   4   5   9   5    4
   9  |   1   3   5   2   3   1   9   5    1 |    6   6   8   5   6   8  10   8    6
  10E |   2   4   5   1   2   2  10   3    1 |    3   6   7   4   4   2  10   3    4
  11  |   3   4   9   2   1   4  11   6    2 |    1   4   9   3   3   4  10   6    3
  13  |   2   4   9   2   2   4   7   6    2 |    2   4   5   3   4   4   9   6    3
  14  |   2   7   5   2   2   4   9  10    2 |    3   6   3   3   4   5   9   8    4
 X15  |   2   4 ---   1   2 ---   8   4    1 |    5   7 ---   5   5 ---   9   7    6
 X17  |   2   3  11   2   4 ---   9   3    2 |    3  18   2  19  20 ---  21   3   19
  18E |   2   5  10   2   2   4   6   4    2 |    1   4  10   3   4   5   8   3    2
 X20E |   2   5  17   2   2 ---   7   4    2 |    3   7  15   4   4 ---   7   5    3
 X21E |   2   4 ---   2   3   3  12   4    2 |    8   9 ---   8  13  10  16   9   10
  22  |   2   4   8   1   2   2   6   4    1 |    2   3   5   3   3   4   7   4    2
  23E |   3   5   8   3   2   3  11   5    2 |    8  11  10  10   9   9  16   8    9
  24  |   2   3   7   2   1   1   7   3    1 |    4   4   6   5   4   4   6   4    4
  25  |   2   5   4   1   1   1   9   6    1 |    3   4   4   4   3   4  12   4    3
  26  |   1   4   5   2   1   1  10   4    1 |    5   5   8   4   6   6  13   6    6
  27  |   2   3   5   1   1   2  11   4    1 |    3   3   3   3   3   5   9   4    3
  28  |   2   5   8   2   2   3   7   7    2 |    2   3   7   3   3   3   6   6    2
  29  |   1   4   4   1   2   2   8   2    1 |    6  10  11   6   8   8  12   6    8
  30  |   1   3  10   1   1   2   6   3    1 |    2   4   7   2   3   5   7   4    3
  31  |   3   6  12   3   3   3   6   5    2 |    1   7   7   3   4   4   6   4    2
------|--------------------------------------|--------------------------------------
 RMS  |   2   4   8   2   2   3   8   5      |T   3   6   7   5   6   5  10   5    5
 WRMS |   2   4   6   2   2   3   8   5      |NE  3   7   6   6   6   4  10   5    6
 MEDI |   2   4   8   2   2   2   8   4      |MD  3   5   7   3   4   4   9   5    3

Table 3.1163.6   GPS week: 1163   Day: 6   MJD: 52391.0

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   1   6   6   1   1   2   7   3    1 |    3   5   5   3   4   4  12   4    3
   2  |   2   4   8   2   2   2   6   3    1 |    6   6   6   6   6   5  11   6    6
   3  |   2   5   5   1   2   2   6   4    1 |    3   4   7   4   4   5  13   4    4
   4  |   1   4   3   2   2   2  10   4    1 |    2   6   4   3   3   5  14   4    3
   5  |   2   4  11   1   2   2   6   3    1 |    3   4   9   2   2   6  12   6    3
   6  |   1   3   3   1   2   3   8   5    1 |    1   4   4   3   3   4  12   4    3
   7  |   1   6   3   2   3   3   9   5    1 |    1   5   3   3   3   5  15   3    4
   8  |   3   5   6   1   2   2   9   4    1 |    6   6   3   4   5   6  15   7    5
   9  |   2   5   6   2   3   1   7   6    1 |    6   6   9   5   6   8  14   9    6
  10E |   1   5   4   2   2   2   6   3    1 |    4   6   6   5   5   5  15   4    5
  11  |   3   5   8   2   2   4   9   7    2 |    2   6   8   3   4   5  12   6    3
  13  |   2   4  11   2   2   4   5   5    2 |    3   6  11   3   5   5  13   6    4
  14  |   2   5   6   1   2   4   9   5    2 |    3   5   7   3   4   5  13   4    3
 X15  |   2   3 ---   1   2 ---   6   3    1 |    8   9 ---   8   8 ---  12   9    8
 X17  |   2   4   4   2   4 ---   6   4    1 |    3   7   2   9   9 ---  11   3    8
  18E |   1   5  13   2   4   4   6   4    2 |    2   5  10   3   4   4  13   4    3
  20E |   2   5   5   2   2   7   8   6    2 |    2   5   7   3   4   8  14   6    4
  21E |   3   4   6   2   2   2   7   4    1 |    8  11   4   8  12  12  13   9   12
  22  |   2   4   7   2   2   2   8   5    1 |    1   5   6   3   3   5  12   6    3
  23E |   2   3   9   3   3   2   9   5    2 |   10  11  12  11  10  10  16   9   10
  24  |   2   5   6   2   2   2   6   5    1 |    5   5   8   5   5   7  13   5    5
  25  |   2   5   6   2   2   2   6   4    1 |    4   5   6   5   4   6  12   6    4
  26  |   2   6   4   2   2   2   9   4    1 |    4   6   7   4   5   5  13   6    5
  27  |   2   5   7   2   2   1   6   3    1 |    5   5   4   5   4   6  11   5    4
  28  |   2   7   4   2   2   4   9   6    2 |    2   6   7   4   5   6  14   5    4
  29  |   1   5   3   1   1   2   8   3    1 |    6   8   9   5   6   7  13   8    7
  30  |   2   6  10   1   1   2   5   3    1 |    2   4   8   3   3   6  12   4    3
  31  |   2   4   7   1   2   2   8   4    1 |    1   7   7   3   5   5  14   4    4
------|--------------------------------------|--------------------------------------
 RMS  |   2   5   7   2   2   3   8   5      |T   4   6   7   4   5   6  13   5    5
 WRMS |   2   5   6   2   2   3   8   5      |NE  3   6   7   4   5   5  12   5    4
 MEDI |   2   5   6   2   2   2   7   4      |MD  3   6   7   4   5   5  13   6    4

 
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.
	 U    - Station Used in centre's solution (at least one day).
         Units: centimetres.


Table 4.1163   GPS week: 1163   MJD: 52385.0-52391.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2600 |U   1    1    4 |U   1    2    5 |U   1    1    3 |
emr | emr 2656 |    2    2    6 |U   2    2    9 |    2    2    5 |
esa | esa 2426 |    3    3    7 |    4    6   13 |    3    4    7 |
gfz | gfz 2636 |    2    2    6 |U   2    3    6 |    3    4    7 |
igr | igr 2674 |    2    2    5 |    2    2    7 |    2    2    5 |
igs | igs 2658 |    2    2    5 |    1    2    7 |    2    2    4 |
jpl | jpl 2429 |    4    3    7 |U   2    3   11 |    3    4    6 |


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: centimetres.

Table 5.1163.0   GPS week: 1163   Day: 0   MJD: 52385.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2630 |    1    1    2 |    1    1    3 |    1    1    2 |
emr | emr 2672 |    2    3    5 |    2    2    7 |    1    2    3 |
esa | esa 2366 |    3    4    5 |    5    7   16 |    3    4    8 |
gfz | gfz 2660 |    2    2    5 |    1    3    6 |    1    3    4 |
igr | igr 2681 |    1    2    4 |    2    3    8 |    2    3    5 |
igs | igs 2682 |    2    2    4 |    1    2    8 |    1    2    4 |
jpl | jpl 2482 |    2    3    6 |    2    3   10 |    3    4    5 |

Table 5.1163.1   GPS week: 1163   Day: 1   MJD: 52386.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2498 |    1    1    3 |    1    3    6 |    1    2    3 |
emr | emr 2573 |    2    3    5 |    2    3   10 |    2    3    5 |
esa | esa 2368 |    2    2    7 |    4    7   13 |    5    6    8 |
gfz | gfz 2563 |    2    3    6 |    1    3    6 |    2    3    5 |
igr | igr 2648 |    1    2    5 |    2    3    7 |    2    2    5 |
igs | igs 2581 |    1    2    5 |    2    3    7 |    2    2    4 |
jpl | jpl 2481 |    2    3    7 |    2    4   10 |    3    3    6 |

Table 5.1163.2   GPS week: 1163   Day: 2   MJD: 52387.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2615 |    1    1    2 |    1    3    6 |    1    1    3 |
emr | emr 2675 |    2    2    5 |    2    2   10 |    2    2    4 |
esa | esa 2276 |    3    4    5 |    4    6   16 |    5    5    9 |
gfz | gfz 2660 |    2    2    5 |    2    3    6 |    8    6   16 |
igr | igr 2679 |    1    2    4 |    2    3    8 |    2    2    5 |
igs | igs 2683 |    1    2    4 |    2    2    8 |    2    2    4 |
jpl | jpl 2483 |    2    3    6 |    2    3   12 |    3    3    5 |

Table 5.1163.3   GPS week: 1163   Day: 3   MJD: 52388.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2667 |    1    1    2 |    1    2    5 |    1    1    4 |
emr | emr 2675 |    1    2    5 |    1    2    9 |    2    2    6 |
esa | esa 2566 |    3    2    6 |    5    7   16 |    3    3    8 |
gfz | gfz 2662 |    2    3    5 |    2    3    6 |    2    2    5 |
igr | igr 2684 |    1    2    4 |    1    2    6 |    1    2    5 |
igs | igs 2673 |    1    2    5 |    1    2    5 |    2    2    5 |
jpl | jpl 2387 |    2    2    5 |    2    3   13 |    3    3    8 |

Table 5.1163.4   GPS week: 1163   Day: 4   MJD: 52389.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2465 |    2    1    4 |    1    2    3 |    1    3    3 |
emr | emr 2650 |    3    3    8 |    2    2    7 |    2    3    5 |
esa | esa 2371 |    4    2    8 |    2    4   10 |    3    5    5 |
gfz | gfz 2567 |    2    2    6 |    2    2    6 |    2    2    5 |
igr | igr 2669 |    3    2    6 |    2    2    6 |    2    3    5 |
igs | igs 2645 |    2    2    5 |    1    2    5 |    1    2    4 |
jpl | jpl 2378 |    5    3    8 |    2    4   10 |    3    6    7 |

Table 5.1163.5   GPS week: 1163   Day: 5   MJD: 52390.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2651 |    2    2    7 |    1    1    2 |    1    1    2 |
emr | emr 2675 |    2    3    9 |    1    2    9 |    2    3    4 |
esa | esa 2476 |    3    3   10 |    4    6    7 |    2    3    7 |
gfz | gfz 2669 |    2    3    8 |    1    2    5 |    1    3    5 |
igr | igr 2680 |    2    3    8 |    1    2    5 |    1    2    4 |
igs | igs 2667 |    2    3    8 |    1    1    6 |    1    2    5 |
jpl | jpl 2387 |    8    4   10 |    2    3    9 |    2    4    6 |

Table 5.1163.6   GPS week: 1163   Day: 6   MJD: 52391.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2676 |    1    1    3 |    1    1    4 |    1    1    2 |
emr | emr 2675 |    1    2    4 |    2    2    9 |    2    2    5 |
esa | esa 2561 |    2    2    5 |    2    3   10 |    2    3    6 |
gfz | gfz 2668 |    1    2    4 |    2    3    6 |    2    4    5 |
igr | igr 2677 |    1    1    4 |    2    2    9 |    1    2    3 |
igs | igs 2677 |    1    2    3 |    2    2    7 |    1    3    4 |
jpl | jpl 2405 |    1    2    4 |    2    4   15 |    2    4    5 |

                                                                               
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 (10**-5")                           
         Ypole,Yrt: y pole and y pole rate (10**-5"/day)                       
         LOD: Length Of Day (us)                                               
                                                                               
         AC LOD BIAS: 21-day mean LOD bias with respect to Bulletin A (us)     
         AC LOD BIAS RMS: RMS of AC LOD BIAS (us)                              
                                                                               
         FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
               for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1163   GPS week: 1163   MJD: 52385.5-52391.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -11      5     -2     -3      7 |     -16     25
            |      1      2      9      6      9 |       2
emr   uuuuu |     -4      2      6     22    -15 |      39     44
            |      8      6     18     13     14 |       1
esa   uuuuu |    -23     15     -4      0    -14 |      39     44
            |      8      6     14     19     12 |       2
gfz   uuuuu |     23     -7     -1     -1      7 |      18     33
            |      3      1      8      8     14 |       1
igr   xxxxx |    -10      3      4      7     16 |       5     25
            |      5      3     12     13     19 |       3
irf   xxxxx |    -13      4     -2     -4    -15 |       1     16
            |      1      2      8      6      6 |       2
jpl   uuuux |    -13      4      3     -3    -96 |     -11     50
            |      3      2     16     14     36 |      13
ngs   uuxxx |     21     -2    -86     12      1 |      44     77
            |      6      7     40     58     67 |       5
sio   uuuuu |     -4    -12     -1     -6     -4 |     -25     31
            |      3      3      9     10     13 |       1

                                                                               
Table 7: Earth Orientation Parameters daily summary.                           
                                                                               
         Daily Centre ERP, ERP Rates and LOD differences with respect to       
         IGS combined values.                                                  
                                                                               
         Xpole,Xrt: x pole and x pole rate (10**-5")                           
         Ypole,Yrt: y pole and y pole rate (10**-5"/day)                       
         LOD: Length Of Day (us)                                               
                                                                               
         AC LOD BIAS: 21-day mean LOD bias with respect to Bulletin A (us)     
         AC LOD BIAS RMS: RMS of AC LOD BIAS (us)                              
                                                                               
         FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
               for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 7.1163.0   GPS week: 1163   Day: 0   MJD: 52385.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12      3      3     -7    -13 |     -20     28
emr   uuuuu |     -1     -2      6     31    -23 |      37     43
esa   uuuuu |    -14      7     -9     27    -34 |      41     46
gfz   uuuuu |     26     -7      7    -14     33 |      16     31
igr   xxxxx |    -14     -3      3     -2     -8 |       1     24
irf   xxxxx |    -12      3     -2    -13    -22 |       2     16
jpl   uuuux |    -11      6    -15     13   -123 |       6     27
ngs   uuxxx |     23      8    -87    -58    -74 |      51     82
sio   uuuuu |     -9    -10      7    -22     11 |     -27     31

Table 7.1163.1   GPS week: 1163   Day: 1   MJD: 52386.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -10      5      7     -3      5 |     -19     27
emr   uuuuu |    -14     -2     -5     34      1 |      38     44
esa   uuuuu |    -12     21     18    -14    -18 |      40     45
gfz   uuuuu |     24     -8     -6      4     -1 |      18     33
igr   xxxxx |    -14      1      7     -2     38 |       2     24
irf   xxxxx |    -12      4      6      1    -23 |       2     16
jpl   uuuux |    -16      4     -4    -18   -112 |       1     36
ngs   uuxxx |     25     -5    -92    -63    -56 |      45     79
sio   uuuuu |     -3     -8      1      8      3 |     -25     30

Table 7.1163.2   GPS week: 1163   Day: 2   MJD: 52387.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -11      2      7      2      9 |     -16     24
emr   uuuuu |      1     15     -1      6    -19 |      41     45
esa   uuuuu |    -22     10    -22     -1    -18 |      41     46
gfz   uuuuu |     20     -7      2      4     -4 |      19     34
igr   xxxxx |    -12      4     -3     26      7 |       6     26
irf   xxxxx |    -14     -1      7     -6    -20 |       3     15
jpl   uuuux |    -11      1    -17     -3   -141 |      -3     42
ngs   uuxxx |     29     -4   -150     23    -27 |      44     79
sio   uuuuu |     -2    -10     13    -17      5 |     -24     29

Table 7.1163.3   GPS week: 1163   Day: 3   MJD: 52388.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -9      6      1    -11     14 |     -16     24
emr   uuuuu |     -9      5      7     39    -11 |      38     42
esa   uuuuu |    -33     23      5      9    -14 |      39     44
gfz   uuuuu |     19     -6     -2    -10      5 |      18     33
igr   xxxxx |    -14      3     -5     13     16 |       4     23
irf   xxxxx |    -15      5     -5      1    -13 |       1     16
jpl   uuuux |    -10      1      3     19    -77 |     -11     54
ngs   uuxxx |     20      8    -97     93     26 |      37     70
sio   uuuuu |     -5    -14     -9     -5    -13 |     -25     29

Table 7.1163.4   GPS week: 1163   Day: 4   MJD: 52389.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -10      5    -17     -2     12 |     -14     23
emr   uuuuu |      9     -2     27     26      4 |      39     43
esa   uuuuu |    -26     17     -5    -33    -17 |      38     43
gfz   uuuuu |     19     -9     -2      5     18 |      17     32
igr   xxxxx |     -4      4     26    -13     45 |       5     24
irf   xxxxx |    -13      6     -7    -13    -11 |       1     16
jpl   uuuux |    -13      7     15     -5   -115 |     -16     56
ngs   uuxxx |     20     -3    -41      5    128 |      39     72
sio   uuuuu |     -3    -16      1     -8    -28 |     -24     29

Table 7.1163.5   GPS week: 1163   Day: 5   MJD: 52390.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -11      8     -6     -5      9 |     -13     22
emr   uuuuu |     -5      2     29     10    -24 |      39     43
esa   uuuuu |    -27     11    -18      9      4 |      37     43
gfz   uuuuu |     24     -6    -15      2     -7 |      19     33
igr   xxxxx |     -5      4    -10     14      5 |       8     26
irf   xxxxx |    -13      5    -14      0     -9 |       0     16
jpl   uuuux |    -18      6     25     -5    -56 |     -23     63
ngs   uuxxx |     11     -7   -105     23     -5 |      48     80
sio   uuuuu |     -1    -16    -14      0     -1 |     -25     31

Table 7.1163.6   GPS week: 1163   Day: 6   MJD: 52391.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12      9     -8      7     12 |     -14     25
emr   uuuuu |     -9     -2    -22     11    -32 |      37     44
esa   uuuuu |    -26     15      8      1     -3 |      34     42
gfz   uuuuu |     25     -7      8      1      2 |      17     34
igr   xxxxx |     -9      5     11     11      6 |       7     27
irf   xxxxx |    -14      4      2     -2     -7 |      -2     21
jpl   uuuux |    -15      4     12    -19    -47 |     -28     69
ngs   uuxxx |     20     -9    -31     64     11 |      47     80
sio   uuuuu |     -2    -12     -6      1     -2 |     -27     34



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