[IGSREPORT-11449] Wk 1274 IGS Final Orbits

Gerd Gendt. igsacc at gfz-potsdam.de
Fri Jun 25 11:36:04 PDT 2004


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IGS Electronic Report   25 Jun 11:36:25 PDT 2004      Message Number 11449
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Author:  AC Coordinator / GFZ Potsdam

Final IGS Orbit Combination - Week 1274   (Jun 06, 2004 - Jun 12, 2004)

Contacts: G.  Gendt   (gendt at gfz-potsdam.de),
          Th. Nischan (nisn at gfz-potsdam.de)

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS12747.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:

 IGS12740-6.SP3  IGS GPS ephemeris files for days 0-6, week 1274 in SP3 format.
 IGS12747.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS12747.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  |  COD   |  26 29
                   0  |  ESA   |  1 26 29 AUCK MALI PERT
                   0  |  GFZ   |  BAN2 GUAM MCM4 ZWEN
                   0  |  JPL   |  GUAM SANT TNML
                   0  |  MIT   |  IRKT PIMO USNO
                   1  |  COD   |  ALGO NOT1
                   1  |  ESA   |  26 29 ALGO AUCK MIZU
                   1  |  GFZ   |  BAN2 IRKT KIT3 LPGS MCM4
                   1  |  JPL   |  SANT
                   1  |  MIT   |  IRKT ONSA SANT SUTM TIXI USNO
                   2  |  COD   |  26 29
                   2  |  EMR   |  24 MAS1
                   2  |  ESA   |  1 26 29 AUCK MAS1 MCM4 PERT
                   2  |  GFZ   |  LPGS MCM4 ZWEN
                   2  |  MIT   |  17 BILI JAB1 MALI USNO
                   3  |  EMR   |  YELL
                   3  |  ESA   |  1 AUCK
                   3  |  GFZ   |  ZWEN
                   3  |  JPL   |  TNML YELL
                   3  |  MIT   |  BOGT FAIR MAS1
                   4  |  COD   |  CEDU
                   4  |  ESA   |  1 ALGO AUCK COCO MCM4 SANT
                   4  |  GFZ   |  BAN2 LPGS
                   4  |  JPL   |  SANT
                   4  |  MIT   |  BOR1 LPGS PIMO SANT
                   5  |  COD   |  26
                   5  |  ESA   |  1 4 ALGO AUCK GUAM PERT
                   5  |  GFZ   |  BAN2 BILI
                   5  |  JPL   |  BOGT SANT
                   5  |  MIT   |  ONSA
                   6  |  MIT   |  ALL
                   6  |  ESA   |  ALGO AUCK PERT SANT
                   6  |  GFZ   |  LPGS SANT
                   6  |  JPL   |  ASC1 MCM4

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

                  Day | Centre | PRN list
                  ----+--------+---------------
                   0  |  SIO   |  28
                   1  |  SIO   |  28
                   1  |  MIT   |  28
                   2  |  SIO   |  28
                   2  |  MIT   |  28
                   3  |  SIO   |  28
                   4  |  SIO   |  28
                   5  |  SIO   |  28
                   5  |  MIT   |  28
                   6  |  SIO   |  28
                   6  |  MIT   |  28
                   6  |  NGS   |  ALL (high Transformation - See Table 2)

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

             Velocity changes per day and affected satellites:

                  Day  |  0 |  1 |  2 |  3 |  4 |  5 |  6  
               --------+----+----+----+----+----+----+-----


7. Starting on 11-Jan-2004 (GPS Week 1253, day 0, MJD 53015) all IGS 
   products, including the IGS combined orbits, are based on the IGS
   realization of the ITRF2000 reference frame (IGb00). For more information
   see IGSMAIL #4748.

8. Small rotations were applied to the all AC orbit and ERP values in order
   to align them to the IGb00. 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 
   IGS03P33_RS99.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  |  +0.74  +0.54  +2.92   -0.01  +0.02  -0.03   +2.94
       EMR  |  -0.79  +1.18  +2.75   -0.01  -0.02  -0.03   +3.83
       ESA  |  +0.52  +1.05  -0.01   +0.00  -0.04  +0.01   +2.50
       GFZ  |  -0.03  +0.11  -0.25   +0.03  -0.00  +0.00   +1.98
       JPL  |  -0.93  +0.78  +0.10   +0.11  -0.05  +0.08   +1.13
       MIT  |  -0.13  +0.32  +0.13   +0.14  -0.01  -0.07   +3.98
       NGS  |  -0.48  -0.05  +2.71   -0.11  +0.16  -0.03   +2.75
       SIO  |  +0.19  +0.15  +2.26   -0.03  +0.07  -0.03   +2.45

9. 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.

10.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.

11.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 (IGS12747.SUM).


Table 1: Week 1274 summary.                       (Jun 06, 2004 - Jun 12, 2004)

Table 1.1274.a   GPS week: 1274   MJD: 53162.000-53168.000

         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  168|0.00 0.00 0.01  0.04 -0.05  0.00 -0.4 0.02 0.02 |   -0.1   -0.4   0.05
        |0.00 0.00 0.00  0.01  0.01  0.02  0.0           |    0.2    0.3
emr  39 |0.00 0.00 0.01  0.04  0.01 -0.09  0.3 0.02 0.02 | 4496.1   28.6   0.05
        |0.00 0.00 0.00  0.01  0.02  0.04  0.0           |   63.4    1.5
esa  72 |0.00 0.00-0.01  0.04  0.06  0.00  0.1 0.03 0.03 | 4495.2   28.3   0.06
        |0.00 0.00 0.01  0.03  0.03  0.05  0.0           |   63.2    1.8
gfz  169|0.00 0.00 0.00  0.00  0.04  0.09 -0.3 0.02 0.02 |    0.0    0.2   0.03
        |0.00 0.00 0.00  0.01  0.02  0.05  0.0           |    0.2    0.4
igr  n/a|0.00 0.00-0.01  0.04  0.00 -0.03 -0.1 0.01 0.01 |    5.4   -0.4   0.03
        |0.00 0.00 0.00  0.01  0.03  0.03  0.0           |    1.0    1.2
jpl  80 |0.00 0.00-0.01 -0.17  0.09 -0.03  0.2 0.03 0.03 |   -3.1   -0.6   0.03
        |0.01 0.00 0.01  0.02  0.02  0.03  0.1           |    0.7    1.1
mit  144|0.00 0.00-0.01 -0.21  0.06 -0.08  0.3 0.05 0.05 |   -0.4    0.7   0.12
        |0.00 0.00 0.00  0.03  0.02  0.04  0.1           |    0.7    0.9
ngs  83 |0.00-0.01 0.01  0.32 -0.48  0.21  0.1 0.06 0.05 |    0.1    0.0   2.91
        |0.00 0.00 0.00  0.05  0.15  0.16  0.2           |    0.1    0.2
sio  143|0.00 0.00-0.02  0.10 -0.15 -0.04  0.4 0.06 0.05 |    0.0    0.0   0.00
        |0.00 0.00 0.00  0.01  0.02  0.08  0.1           |    0.0    0.0

Table 1.1274.b   GPS week : 1274   MJD: 53162.000-53168.000

         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
------|-----------------------------|------------------------------------------
   1E |   1   1   1   1   1   1   1 |
   3  |   1   1   1   1   1   1   1 |
   4E |   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   1   1   1   1 |
  10  |   1   1   1   1   1   1   1 |
  11E |   1   1   1   1   1   1   1 |
  13E |   1   1   1   1   1   1   1 |
  14E |   1   1   1   1   1   1   1 |
  15E |   1   1   1   1   1   1   1 |
  16  |   1   1   1   1   1   1   1 |
  17E |   1   1   1   1   1   1   1 |
  18  |   1   1   1   1   1   1   1 |
  19  |   2   2   1   1   2   1   1 |
  20  |   1   1   1   1   1   1   1 |
  21E |   1   1   1   1   1   1   1 |
  22  |   1   1   1   1   1   1   1 |
  24E |   1   1   1   2   4   1   1 |
  25  |   1   1   1   1   1   1   1 |
  26E |   1   1   1   1   1   1   1 |
  27  |   1   1   1   1   1   1   1 |
  28  |   3   1   1   3   3   1   1 |
  29E |   1   1   1   1   1   1   1 |
  30  |   1   1   1   1   1   1   1 |
  31  |   1   1   1   1   1   1   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 2.1274.0   GPS week: 1274   Day: 0   MJD: 53162.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.04 -0.05 -0.02 -0.4 0.02 0.02 |    0.0   -0.5   0.04
        |                0.06  0.00                      |
emr  40 |0.00 0.00 0.01  0.05  0.01 -0.12  0.3 0.02 0.02 | 4410.0   27.4   0.06
        |                0.02  0.04                      |
esa  72 |0.00 0.00-0.02  0.02  0.11  0.03  0.1 0.03 0.03 | 4409.1   27.3   0.05
        |               -0.08 -0.09                      |
gfz  173|0.00 0.00 0.00  0.01  0.01  0.11 -0.3 0.02 0.02 |    0.2   -0.1   0.03
        |               -0.07  0.00                      |
igr  n/a|0.00 0.00 0.00  0.04 -0.04 -0.02 -0.1 0.01 0.01 |    5.0   -1.2   0.03
        |               -0.06 -0.01                      |
jpl  80 |0.01 0.00-0.01 -0.15  0.12 -0.05  0.3 0.03 0.03 |   -3.3   -1.4   0.03
        |                0.02 -0.01                      |
mit  151|-.01 0.00-0.01 -0.23  0.02 -0.12  0.4 0.05 0.04 |    0.1   -0.2   0.04
        |                0.14  0.04                      |
ngs  83 |0.00-0.01 0.01  0.39 -0.35  0.28 -0.1 0.07 0.05 |    0.2   -0.2   2.76
        |               -0.33  0.01                      |
sio  141|0.00 0.00-0.02  0.12 -0.19  0.11  0.3 0.06 0.06 |    0.0    0.0   0.00
        |               -0.07  0.05                      |

Table 2.1274.1   GPS week: 1274   Day: 1   MJD: 53163.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.04 -0.04 -0.03 -0.5 0.02 0.02 |   -0.2    0.1   0.05
        |                0.08  0.02                      |
emr  40 |0.00 0.00 0.01  0.04  0.01 -0.09  0.3 0.02 0.02 | 4437.5   26.9   0.06
        |               -0.03  0.00                      |
esa  72 |0.00 0.00-0.01  0.04  0.07 -0.02  0.1 0.03 0.03 | 4437.1   25.8   0.06
        |               -0.13 -0.08                      |
gfz  174|0.00 0.00 0.00  0.01  0.05  0.10 -0.3 0.02 0.01 |    0.0   -0.1   0.03
        |               -0.05 -0.03                      |
igr  n/a|0.00 0.00 0.00  0.05  0.02 -0.05 -0.1 0.01 0.01 |    4.4   -1.4   0.03
        |               -0.05 -0.12                      |
jpl  79 |0.00 0.00-0.02 -0.19  0.08 -0.02  0.2 0.03 0.03 |   -4.0   -1.4   0.03
        |               -0.01 -0.02                      |
mit  148|-.01 0.00-0.01 -0.23  0.08 -0.11  0.4 0.05 0.05 |   -1.9    2.1   0.05
        |                0.16 -0.03                      |
ngs  83 |-.01-0.01 0.02  0.31 -0.38  0.34  0.1 0.06 0.05 |    0.0    0.1   3.18
        |               -0.21  0.03                      |
sio  151|0.00 0.00-0.02  0.10 -0.17 -0.02  0.5 0.06 0.04 |    0.0    0.0   0.00
        |               -0.04 -0.01                      |

Table 2.1274.2   GPS week: 1274   Day: 2   MJD: 53164.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.05 -0.05 -0.03 -0.5 0.02 0.02 |   -0.2   -0.4   0.04
        |                0.12  0.04                      |
emr  39 |0.00 0.00 0.01  0.05 -0.02 -0.15  0.4 0.03 0.02 | 4465.6   28.6   0.05
        |                0.06  0.10                      |
esa  72 |0.00 0.01-0.01  0.01  0.09 -0.08  0.2 0.03 0.03 | 4464.9   28.5   0.06
        |               -0.03 -0.06                      |
gfz  177|0.00 0.00 0.00  0.00  0.02  0.17 -0.2 0.02 0.01 |   -0.2    0.2   0.03
        |               -0.08  0.00                      |
igr  n/a|0.00 0.00-0.01  0.03  0.01 -0.03 -0.1 0.02 0.01 |    4.4   -0.1   0.03
        |               -0.05 -0.01                      |
jpl  79 |0.00 0.00 0.00 -0.22  0.11 -0.05  0.3 0.03 0.03 |   -3.9    0.0   0.03
        |                0.04  0.04                      |
mit  148|0.00 0.00-0.01 -0.17  0.10 -0.09  0.4 0.05 0.05 |   -0.6    1.6   0.03
        |                0.11 -0.06                      |
ngs  83 |0.00-0.01 0.01  0.34 -0.35  0.41  0.0 0.05 0.05 |    0.0    0.1   3.15
        |               -0.32  0.12                      |
sio  146|0.00 0.00-0.02  0.11 -0.14 -0.10  0.4 0.06 0.05 |    0.0    0.0   0.00
        |               -0.04  0.07                      |

Table 2.1274.3   GPS week: 1274   Day: 3   MJD: 53165.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.02 -0.03 -0.01 -0.5 0.02 0.02 |   -0.2   -0.1   0.05
        |                0.13  0.04                      |
emr  40 |0.00 0.00 0.01  0.03  0.02 -0.12  0.3 0.03 0.03 | 4494.3   29.7   0.07
        |                0.07  0.01                      |
esa  72 |0.00 0.00 0.00  0.05  0.02 -0.02  0.2 0.03 0.03 | 4493.7   29.2   0.07
        |                0.01 -0.04                      |
gfz  169|0.00 0.00 0.00  0.01  0.06  0.15 -0.3 0.02 0.02 |    0.2    0.9   0.04
        |               -0.10 -0.06                      |
igr  n/a|0.00 0.00-0.01  0.06  0.02 -0.06 -0.1 0.02 0.02 |    4.8    0.6   0.04
        |               -0.01 -0.06                      |
jpl  80 |0.00 0.00-0.01 -0.17  0.09 -0.06  0.3 0.04 0.04 |   -3.3    0.5   0.04
        |                0.05 -0.03                      |
mit  147|0.00 0.00-0.01 -0.24  0.05 -0.01  0.2 0.04 0.04 |   -0.3    0.4   0.04
        |                0.13 -0.04                      |
ngs  83 |0.00-0.01 0.01  0.34 -0.41  0.31  0.1 0.06 0.05 |    0.1    0.2   3.12
        |               -0.43  0.09                      |
sio  143|0.01 0.00-0.02  0.10 -0.13 -0.13  0.4 0.06 0.04 |    0.0    0.0   0.00
        |               -0.08  0.04                      |

Table 2.1274.4   GPS week: 1274   Day: 4   MJD: 53166.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.06 -0.05  0.01 -0.4 0.02 0.02 |   -0.1   -0.4   0.05
        |                0.06  0.04                      |
emr  37 |0.00 0.00 0.01  0.05  0.04 -0.08  0.3 0.02 0.02 | 4524.6   29.2   0.05
        |                0.03  0.01                      |
esa  72 |0.00 0.00-0.01  0.02  0.05  0.05  0.1 0.03 0.03 | 4522.9   29.1   0.06
        |               -0.03 -0.03                      |
gfz  168|0.00 0.01 0.00 -0.03  0.05  0.07 -0.3 0.02 0.02 |    0.0    0.0   0.04
        |               -0.02 -0.03                      |
igr  n/a|0.00 0.00-0.01  0.02  0.04 -0.06 -0.1 0.01 0.01 |    5.6   -0.4   0.04
        |               -0.01 -0.06                      |
jpl  80 |0.00 0.00 0.00 -0.17  0.12 -0.01  0.1 0.04 0.04 |   -2.6   -0.8   0.03
        |                0.02 -0.02                      |
mit  151|-.01 0.00-0.01 -0.19  0.04 -0.06  0.3 0.04 0.04 |   -0.3    0.3   0.04
        |                0.12 -0.04                      |
ngs  83 |-.01-0.01 0.01  0.30 -0.51  0.14  0.1 0.07 0.06 |    0.1   -0.3   2.34
        |               -0.44  0.17                      |
sio  136|0.00 0.00-0.02  0.09 -0.16 -0.04  0.4 0.06 0.05 |    0.0    0.0   0.00
        |               -0.06  0.07                      |

Table 2.1274.5   GPS week: 1274   Day: 5   MJD: 53167.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.04 -0.04  0.02 -0.5 0.02 0.02 |    0.0   -0.6   0.04
        |                0.07  0.04                      |
emr  40 |0.00 0.00 0.00  0.02  0.01 -0.03  0.3 0.02 0.02 | 4554.8   31.2   0.03
        |                0.05  0.01                      |
esa  72 |0.00 0.00 0.00  0.05  0.08  0.03  0.0 0.03 0.03 | 4553.5   31.1   0.07
        |               -0.05 -0.03                      |
gfz  164|0.00 0.00 0.00  0.01  0.06  0.04 -0.2 0.02 0.02 |   -0.3    0.6   0.03
        |               -0.05 -0.06                      |
igr  n/a|0.00 0.00 0.00  0.04  0.00  0.00 -0.1 0.01 0.01 |    5.9    1.3   0.03
        |               -0.03 -0.09                      |
jpl  80 |0.01 0.00 0.00 -0.17  0.09  0.01  0.2 0.03 0.03 |   -2.8    1.0   0.03
        |                0.00 -0.01                      |
mit  147|0.00 0.00-0.01 -0.18  0.06 -0.07  0.3 0.05 0.05 |   -0.3    0.5   0.04
        |                0.10 -0.04                      |
ngs  83 |0.00 0.00 0.01  0.34 -0.60 -0.03  0.2 0.06 0.05 |   -0.1    0.3   2.34
        |               -0.44  0.37                      |
sio  142|0.00 0.00-0.02  0.09 -0.14 -0.02  0.4 0.06 0.06 |    0.0    0.0   0.00
        |               -0.07  0.05                      |

Table 2.1274.6   GPS week: 1274   Day: 6   MJD: 53168.000

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  168|0.00 0.00 0.01  0.05 -0.07  0.02 -0.4 0.01 0.01 |    0.2   -0.9   0.05
        |                0.07  0.01                      |
emr  40 |0.01 0.00 0.00  0.04  0.01 -0.05  0.3 0.02 0.02 | 4585.8   27.4   0.04
        |                0.03 -0.02                      |
esa  72 |0.00 0.00-0.01  0.10  0.03  0.04  0.1 0.03 0.03 | 4585.0   27.1   0.07
        |               -0.05 -0.07                      |
gfz  156|0.00 0.00 0.00  0.00  0.04  0.03 -0.2 0.01 0.01 |    0.1    0.1   0.03
        |               -0.04 -0.06                      |
igr  n/a|0.00 0.00-0.01  0.03 -0.02  0.00 -0.1 0.01 0.01 |    7.3   -2.0   0.03
        |               -0.01 -0.06                      |
jpl  80 |-.01 0.00 0.00 -0.16  0.05 -0.02  0.2 0.03 0.03 |   -1.9   -2.2   0.04
        |                0.01  0.00                      |
mit  113|-.01 0.00-0.01 -0.20  0.04 -0.07  0.4 0.05 0.05 |    0.3   -0.1   0.30
        |                0.11 -0.06                      |
ngs  83 |0.00 0.00 0.01  0.23 -0.75  0.03  0.4 0.07 0.06 |    0.2    0.0   3.30
        |               -0.20  0.44                      |
sio  140|0.00 0.00-0.02  0.12 -0.12 -0.08  0.5 0.07 0.05 |    0.0    0.0   0.00
        |               -0.05  0.08                      |

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","MD" stands for median of the centre's satellite RMS.

         Units: cm.

Table 3.1274.0   GPS week: 1274   Day: 0   MJD: 53162.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   1   3   3   3   2   2   3   7   4    1 |    6   8   7   6   7   6   7   6   7    6
   3  |   2   3   6   1   1   2   4   7   4    1 |    4   6   5   5   5   5   7   8   9    5
   4  |   2   1   3   1   1   2   2   6   5    1 |   11  12  11  12  12  12  11  11  12   11
   5  |   1   2   3   2   1   2   4   5   4    1 |    6   6   6   5   5   6   6   7   7    5
   6  |   2   2   2   2   1   2   3   8   6    1 |    4   4   5   4   4   4   5   8   8    4
   7  |   2   3   2   1   1   2   2   5   3    1 |    4   4   5   4   4   5   5   6   6    4
   8  |   1   2   3   1   1   2   4   5   6    1 |    5   4   5   4   4   4   7   5   7    4
   9  |   2   2   3   1   1   2   3   7   3    1 |    4   3   4   3   3   4   4   4   4    3
  10  |   1   2   3   1   1   1   3   8   4    1 |    6   6   6   6   6   6   7   6   6    6
  11E |   2   2   3   1   1   5   2   6   6    1 |    4   4   4   3   3   4   4   5   5    3
  13E |   1   3   3   1   2   5   2   8   6    1 |    4   4   4   4   4   4   4   7   7    3
  14E |   2   2   2   2   1   4   3  12   5    1 |    3   3   3   3   3   3   3   4   5    3
  15  |   1   2   2   1   2   2   3   4   3    1 |    8   9   8   9   8   9   9   9  10    8
  16  |   1   2   3   1   1   4   4   6   5    1 |    4   4   4   4   3   4   3   5   6    4
  17  |   1   1   3   1   1   2   4   7   7    1 |    4   4   3   3   4   4   6   7   7    4
  18  |   1   2   3   2   1   5   3   4   7    1 |    3   3   4   3   2   4   3   4   5    2
 X19  |   2   5   6   2   2 ---   4   8   6    2 |    6   7   8   6   6 ---   5   8   8    6
  20  |   1   2   4   1   1   5   4   6   6    1 |    5   5   4   4   4   4   6   8   8    4
  21  |   2   3   3   1   1   6   3   4   5    1 |    4   6   5   5   4   5   5   4   6    4
  22  |   2   2   4   2   1   5   4   6   5    1 |    5   5   7   5   4   6   4   6   6    5
  24  |   2   2   4   2   1   2   3   8   6    1 |    4   5   4   3   4   4   5   7   6    4
  25  |   1   2   2   1   1   2   2   5   3    1 |    4   4   4   4   4   4   5   7   5    4
  26E |   2   2   3   3   2   3   2   5   4    1 |   12  12  11  12  12  11  12  11  12   11
  27  |   1   2   2   1   1   3   3   7   7    1 |    5   4   5   5   4   4   6   6   7    5
  28  |   3   3   4   3   3   6  18   7  21    3 |    4   4   3   3   4   4  19   6  22    4
  29E |   1   3   3   2   2   2   2   7   5    1 |    4   4   4   4   4   4   4   8   7    4
  30  |   1   2   2   2   1   2   3   7   5    1 |    6   6   6   5   5   6   4   6   6    5
  31  |   2   3   3   1   2   2   4   6   6    1 |    4   5   5   4   4   4   5   7   7    4
------|------------------------------------------|------------------------------------------
 RMS  |   2   2   3   2   1   3   5   7   6      |T   5   5   5   5   5   5   6   6   8    5
 WRMS |   2   2   3   2   1   3   4   5   6      |NE  4   5   5   4   4   5   7   6   8    4
 MEDI |   2   2   3   1   1   2   3   7   5      |MD  4   5   5   4   4   4   5   7   7    4

Table 3.1274.1   GPS week: 1274   Day: 1   MJD: 53163.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   2   1   4   2   1   3   4   6   2    1 |    4   4   5   5   5   4   5   6   5    4
   3  |   2   3   4   1   1   2   3   7   4    1 |    3   4   4   4   4   4   5   7   6    4
   4E |   2   2   3   5   2   2   3   6   2    1 |    5   5   5  10   5   5   6   7   6    6
   5  |   1   1   2   1   1   2   4   4   2    1 |    3   3   3   3   3   3   5   5   4    3
   6  |   2   2   3   2   1   2   2  11   4    1 |    3   3   3   3   3   3   4  10   5    3
   7  |   2   2   2   1   1   2   2   7   2    1 |    3   4   4   4   3   4   5   5   5    3
   8  |   1   2   3   1   1   2   3   4   3    1 |    4   4   4   4   3   3   6   5   5    3
   9  |   2   2   2   1   1   2   3   5   2    1 |    4   4   2   3   4   4   5   5   4    3
  10  |   1   1   3   1   1   1   2   5   3    1 |    6   6   5   6   6   5   7   9   7    6
 X11E |   2   3   3   3   1 ---   2   6   4    1 |    4   4   4   4   4 ---   4   7   5    3
  13E |   2   2   6   1   1   5   2   7   5    1 |    4   4   6   4   5   3   4   7   8    4
  14E |   2   2   3   1   1   4   2   7   6    1 |    3   3   3   3   3   3   3   4   4    3
  15  |   2   2   4   1   2   2   3   5   3    1 |    7   7   8   7   7   8   8   7   7    7
  16  |   1   2   4   1   1   4   3   4   5    1 |    3   3   3   2   2   3   3   5   5    2
  17  |   1   1   3   1   1   1   4   6   4    1 |    3   3   3   3   3   3   4   5   5    3
  18  |   2   2   3   2   1   5   3   4   5    1 |    3   4   4   3   3   3   3   4   6    3
  19  |   3   4   8   2   2   5   5   8   5    2 |    5   6   8   5   5   7   5   9   6    5
  20  |   1   2   3   1   1   5   4   4   5    1 |    4   4   4   4   4   4   5   6   5    4
  21  |   2   2   4   1   1   6   3   6   4    1 |    8   9   9   9   8   9   8   8  10    8
  22  |   2   2   4   2   2   5   4   7   6    1 |    4   5   6   5   4   6   4   6   5    4
  24  |   2   1   3   1   1   1   3   7   3    1 |    5   7   6   6   5   6   6   5   5    6
  25  |   2   1   2   1   1   3   2   6   3    1 |    3   3   3   3   2   3   3   6   4    2
  26E |   2   2   2   2   2   2   3   5   2    1 |    7   7   7   8   7   8   7   9   8    7
  27  |   2   2   3   2   1   3   4   6   5    1 |    3   3   5   3   4   3   5   4   4    3
  28  |   2   2   3   1   1   5  20   7  23    1 |    3   3   3   2   3   3  19   6  21    2
  29E |   2   2   3   1   1   1   3   7   3    1 |    4   5   4   4   5   4   6   7   5    4
  30  |   1   1   3   1   1   2   3   4   3    1 |    4   3   4   3   4   3   3   4   3    3
  31  |   2   2   3   1   1   2   2   5   4    1 |    3   4   4   4   4   4   4   6   5    4
------|------------------------------------------|------------------------------------------
 RMS  |   2   2   3   2   1   3   5   6   6      |T   4   4   4   4   4   4   6   6   6    4
 WRMS |   2   2   3   1   1   3   5   5   4      |NE  4   5   5   4   4   5   6   6   7    4
 MEDI |   2   2   3   1   1   2   3   6   4      |MD  4   4   4   4   4   4   5   6   5    4

Table 3.1274.2   GPS week: 1274   Day: 2   MJD: 53164.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   2   2   3   2   1   2   5   6   3    1 |    6   6   6   6   6   6   7   7   6    5
   3  |   2   3   3   2   1   2   2   4   4    1 |    4   4   4   4   4   4   5   5   6    4
   4E |   2   2   2   2   1   2   2   4   2    1 |    8   8   8   8   8   8   8   7   7    8
   5  |   1   2   2   2   1   2   3   4   3    1 |    4   4   4   4   4   4   4   6   5    4
   6  |   2   2   3   2   1   2   2   5   4    1 |    4   4   4   4   4   4   5   9   7    4
   7  |   2   2   2   1   3   1   3   5   3    1 |    4   4   4   4   3   4   5   5   5    3
   8  |   2   2   2   1   1   2   4   4   4    1 |    4   3   4   4   3   3   6   6   5    3
   9  |   2   2   2   1   1   2   2   6   3    1 |    3   3   3   3   3   3   4   4   4    3
  10  |   2   2   2   1   1   1   3   4   3    1 |    7   7   6   8   7   8   7   7   7    7
  11E |   1   3   4   2   2   5   4   7   4    1 |    5   5   5   5   5   4   5   5   5    4
  13E |   2   2   4   2   2   5   3   7   6    1 |    4   4   5   5   5   4   4   6   7    4
  14E |   2   3   2   2   1   4   3   7   7    1 |    3   3   3   3   2   3   3   3   3    2
  15  |   2   2   4   2   1   2   2   5   3    1 |    6   6   5   5   6   6   5   7   7    5
  16  |   1   2   3   1   1   4   3   6   5    1 |    4   3   4   3   3   3   4   5   6    3
  17  |   2   1   2   1   2   1   3   4   5    1 |    4   4   3   3   3   3   5   5   6    3
  18  |   2   2   3   2   2   5   3   4   5    1 |    4   4   5   4   3   4   5   5   5    3
  19  |   2   3   4   2   2   6   4   5   5    1 |    6   6   7   6   5   6   4   6   6    5
  20  |   1   2   3   1   1   5   3   7   5    1 |    4   5   5   4   4   4   4   7   5    4
  21E |   2   2   2   2   1   6   3   5   5    1 |    7   7   7   7   7   7   7   7   8    7
  22  |   2   3   4   2   2   5   4   4   6    1 |    5   5   8   6   5   5   6   6   6    5
  24E |   2   8   3   3   2   3   2   5   3    1 |    5  11   4   5   5   5   8   8   6    6
  25  |   2   2   2   1   1   2   2   5   3    1 |    4   4   4   4   3   3   4   7   4    3
 X26E |   2   3   2   3   2 ---   2   7   3    1 |    7   7   6   7   6 ---   7  10   8    6
  27  |   1   2   3   1   1   3   3   5   5    1 |    4   3   4   3   4   3   5   5   5    3
  28  |   2   2   3   1   2   5  20   7  24    1 |    3   4   3   3   3   3  18   5  21    3
  29E |   1   2   4   1   2   2   2   5   4    1 |    4   4   5   4   4   4   4   6   6    4
  30  |   1   1   2   1   1   2   3   8   3    1 |    4   3   4   4   3   3   3   5   4    3
  31  |   2   2   3   1   1   1   4   5   4    1 |    4   4   5   4   4   4   5   5   6    4
------|------------------------------------------|------------------------------------------
 RMS  |   2   3   3   2   2   3   5   5   6      |T   4   5   5   4   4   4   6   6   6    4
 WRMS |   2   2   3   1   1   3   5   5   5      |NE  4   4   5   4   4   4   6   5   7    4
 MEDI |   2   2   3   2   1   2   3   5   4      |MD  4   4   5   4   4   4   5   6   6    4

Table 3.1274.3   GPS week: 1274   Day: 3   MJD: 53165.000

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

Table 3.1274.4   GPS week: 1274   Day: 4   MJD: 53166.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   2   2   2   1   1   2   4   9   3    1 |    4   5   5   5   5   5   5   7   5    4
   3  |   2   3   3   2   1   2   3   5   4    1 |    3   5   4   4   4   4   6   6   7    4
   4E |   1   2   2   2   1   2   2   8   2    1 |    6   7   6   7   6   6   7   6   7    6
   5  |   1   2   2   1   1   2   4   8   3    1 |    4   5   5   4   4   4   5   7   4    4
   6  |   2   2   2   1   1   2   2   8   6    1 |    3   3   4   3   3   3   4   7   6    3
   7  |   1   2   3   1   1   2   2   4   3    1 |    3   3   4   3   3   3   4   5   4    3
   8  |   2   2   2   1   1   2   3   5   3    1 |    3   3   4   3   3   3   5   7   4    3
   9  |   2   1   2   1   1   2   3   7   4    1 |    4   4   4   3   3   3   4   4   4    3
  10  |   1   2   3   1   1   1   2   5   3    1 |    4   4   3   4   3   4   4   6   5    4
  11E |   1   2   3   2   1   5   2   7   5    1 |    4   4   4   4   3   4   4   7   4    3
  13E |   1   2   2   2   2   6   2   9   5    1 |    3   3   3   3   3   3   4   7   5    2
  14E |   1   2   3   2   1   4   2   8   4    1 |    3   3   4   3   3   3   3   5   3    2
  15E |   2   2   3   3   2   2   3   4   3    1 |   10  10  11  11  10  10  10   9  11   10
  16  |   1   2   3   2   1   4   3   5   5    1 |    3   4   3   3   2   3   3   3   6    2
  17  |   1   1   1   1   1   2   3   8   4    1 |    3   3   3   3   2   2   4   5   4    2
  18  |   1   2   4   2   2   5   3   7   5    1 |    3   4   4   3   3   3   3   7   4    2
  19  |   2   3   7   2   2   6   4   6   6    2 |    5   5   7   6   5   7   5   6   7    5
  20  |   1   2   3   2   1   5   3   8   5    1 |    3   4   4   3   3   3   4   7   4    3
  21E |   1   2   2   2   2   6   2   5   4    1 |    5   5   5   5   5   6   5   7   6    5
  22  |   2   3   5   2   2   5   4   6   7    1 |    4   5   8   5   4   5   5   4   6    4
 X24E | ---   6 ---   6   7   8   9  10 ---    4 |  --- --- --- --- --- --- --- --- ---  ---
  25  |   2   1   3   2   1   2   2  11   3    1 |    3   3   3   3   2   3   3   7   3    2
  26E |   2   2   2   2   1   2   2   8   3    1 |    6   7   6   6   6   6   6   9   7    6
  27  |   2   2   3   2   1   2   3   7   3    1 |    3   3   3   3   3   3   4   6   4    3
  28  |   2   4   4   3   2   6  17   8  22    3 |    3   4   3   2   3   3  18   6  22    4
  29E |   1   2   3   2   1   2   2   6   3    1 |    3   3   4   3   3   3   3   6   4    3
  30  |   1   2   1   1   1   2   3   7   3    1 |    5   4   4   4   4   3   3   4   4    4
  31  |   1   2   3   1   1   2   3   6   4    1 |    3   4   4   3   3   3   4   6   5    3
------|------------------------------------------|------------------------------------------
 RMS  |   2   2   3   2   1   4   4   7   6      |T   4   4   4   4   4   4   5   6   6    4
 WRMS |   2   2   3   2   1   4   4   6   5      |NE  3   3   4   3   3   3   6   5   7    3
 MEDI |   1   2   3   2   1   2   3   7   4      |MD  3   4   4   3   3   3   4   6   5    3

Table 3.1274.5   GPS week: 1274   Day: 5   MJD: 53167.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   2   2   3   1   1   2   3   5   3    1 |    4   5   5   4   4   4   4   7   5    4
   3  |   2   2   3   1   1   2   3   6   5    1 |    3   4   4   3   4   3   5   6   6    3
   4E |   1   1   2   4   2   2   3   6   2    1 |    5   5   4   6   5   4   5   7   5    4
   5  |   1   1   2   1   1   2   4   6   4    1 |    4   4   3   3   3   3   5   6   5    3
   6  |   2   2   2   2   1   1   2   8   5    1 |    3   3   3   3   3   3   5   6   6    3
   7  |   1   2   1   1   1   1   2   5   3    1 |    3   3   3   3   3   3   4   5   4    3
   8  |   1   2   2   1   1   2   3   7   4    1 |    3   2   3   3   2   2   5   5   4    2
   9  |   2   1   2   2   1   2   2   5   3    1 |    3   3   4   3   3   3   3   4   4    3
  10  |   1   1   2   1   1   1   2   5   2    1 |    3   3   3   3   3   3   4   6   4    3
  11E |   2   2   3   2   1   5   2   8   4    1 |    3   3   4   3   3   3   2   7   3    2
  13E |   1   3   3   3   1   5   3   6   4    1 |    3   3   2   5   3   3   3   6   5    3
  14E |   2   3   3   2   1   4   3  10   5    1 |    2   3   4   3   2   3   4   4   3    2
  15E |   2   2   4   2   1   2   3   5   4    1 |    6   6   8   6   7   7   7   9   8    6
  16  |   1   2   3   2   1   4   3   5   5    1 |    3   3   3   2   2   2   3   4   5    2
  17  |   1   1   2   1   1   1   3   3   4    1 |    3   3   3   3   3   2   3   4   5    3
  18  |   1   2   5   1   2   5   4   7   4    1 |    3   3   5   2   2   3   3   7   4    2
  19  |   3   2   6   2   2   5   4   6   5    1 |    5   6   5   6   6   5   5   6   6    5
  20  |   1   2   2   1   1   5   3   7   4    1 |    3   4   4   2   3   3   3   6   4    2
  21E |   2   2   2   1   1   5   3   7   5    1 |    4   4   4   3   3   4   4   7   4    3
  22  |   2   2   4   2   1   5   4   5   6    1 |    4   5   6   5   4   5   5   6   5    4
 X24E |   1   1   3   3   1   2   3   7 ---    1 |  --- --- --- --- --- --- --- --- ---  ---
  25  |   2   1   3   1   1   2   3   8   3    1 |    2   3   3   2   2   2   3   5   3    2
  26E |   2   2   3   2   1   2   2   4   3    1 |    6   6   7   7   6   6   7   8   6    6
  27  |   1   1   3   2   1   2   2   7   5    1 |    2   2   3   3   2   2   4   5   3    2
  28  |   1   2   2   1   1   5  20   6  25    1 |    3   3   3   2   3   2  18   5  23    2
  29E |   2   2   3   2   1   1   2   5   3    1 |    2   3   4   3   3   2   4   6   5    3
  30  |   1   2   2   1   1   2   3   6   3    1 |    4   5   4   4   4   4   4   5   4    4
  31  |   2   1   3   1   1   2   2   8   4    1 |    3   3   4   3   3   3   4   7   5    3
------|------------------------------------------|------------------------------------------
 RMS  |   2   2   3   2   1   3   5   6   6      |T   3   3   4   3   3   3   5   6   6    3
 WRMS |   2   2   3   2   1   3   5   5   6      |NE  3   3   3   3   3   3   6   5   7    3
 MEDI |   2   2   3   2   1   2   3   6   4      |MD  3   3   4   3   3   3   4   6   5    3

Table 3.1274.6   GPS week: 1274   Day: 6   MJD: 53168.000

        Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl mit ngs sio  IGS |  cod emr esa gfz igr jpl mit ngs sio  IGS
------|------------------------------------------|------------------------------------------
   1E |   2   1   2   1   2   2   4   8   3    1 |    5   6   6   5   5   5   6   8   7    5
   3  |   2   2   4   1   1   2   3   6   5    1 |    4   5   4   4   4   4   6   6   8    4
   4E |   1   1   2   1   1   2   2  10   2    1 |    5   5   5   5   5   5   6   9   5    5
   5  |   1   1   2   1   1   2   4   7   4    1 |    5   6   6   5   5   5   7   9   7    5
   6  |   1   2   2   1   1   2   2  10   5    1 |    4   4   5   4   4   4   6   8   8    4
   7  |   1   2   3   1   1   2   2   6   3    1 |    4   4   5   4   4   4   5   6   5    4
   8  |   1   1   3   1   1   2   3   5   4    1 |    4   4   4   4   4   4   6   6   6    4
   9  |   1   1   2   1   1   2   2   5   2    1 |    3   4   4   3   3   4   4   5   4    3
  10  |   1   1   2   1   1   1   2   6   3    1 |    3   3   3   3   3   3   4   5   5    3
  11E |   1   2   2   1   1   6   3   9   5    1 |    3   3   3   3   3   3   3   8   4    2
  13E |   1   2   4   2   1   5   3   7   5    1 |    3   3   4   3   3   3   4   6   4    3
  14E |   1   2   2   2   1   4   3   9   6    1 |    3   3   3   3   3   4   4   6   4    3
  15E |   1   1   4   1   2   2   3   7   3    1 |    9   9   9   9   9   9   9   8  10    9
  16  |   1   2   3   1   1   4   3   6   5    1 |    4   4   4   3   3   4   4   4   5    3
  17E |   1   1   2   2   2   2   4   5   4    1 |    4   3   3   4   3   4   4   4   5    3
  18  |   1   2   4   2   2   5   4   7   6    1 |    3   3   5   2   3   4   4   6   4    2
 X19  |   2   2 ---   1   2   6   4   7   6    1 |    6   7 ---   7   6   8   6   7   9    7
  20  |   1   2   3   1   1   5   3   8   5    1 |    3   4   4   3   3   4   3   9   4    3
  21E |   1   2   2   1   1   5   2   6   5    1 |    5   5   6   4   5   6   6   6   5    5
  22  |   2   2   4   2   2   5   5   7   6    1 |    5   5   7   5   5   5   5   7   6    4
 X24E |   2   1   2   2   2   2   3   5 ---    1 |  --- --- --- --- --- --- --- --- ---  ---
  25  |   2   1   3   1   1   2   3   7   3    1 |    3   3   4   3   3   3   4   4   3    3
  26E |   1   2   3   1   1   2   2   5   3    1 |    8   8   8   8   8   8   8  10  10    8
  27  |   1   1   4   1   1   2   3   8   5    1 |    3   3   4   3   3   3   5   8   5    3
  28  |   2   2   3   1   1   5  21   7  26    1 |    3   4   3   3   3   3  19   5  24    2
  29E |   1   2   4   1   1   2   2   5   3    1 |    3   3   4   4   3   3   4   5   5    3
  30  |   1   1   2   1   1   2   4   5   3    1 |    5   6   5   5   5   5   6   6   6    5
  31  |   1   1   3   1   1   2   4   8   4    1 |    4   4   5   4   4   4   5   7   7    4
------|------------------------------------------|------------------------------------------
 RMS  |   1   2   3   1   1   3   5   7   7      |T   4   4   4   4   4   4   6   6   7    4
 WRMS |   1   2   3   1   1   3   5   6   5      |NE  3   4   4   3   3   4   7   6   9    3
 MEDI |   1   2   3   1   1   2   3   7   4      |MD  4   4   4   4   4   4   5   6   5    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 4.1274   GPS week: 1274   MJD: 53162.0-53168.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2674 |U   2    1    4 |U   1    1    3 |
emr | emr 2670 |    2    2    5 |    2    2    6 |
esa | esa 2660 |    3    3    6 |U   1    2    7 |
gfz | gfz 2655 |U   2    2    5 |U   2    2    6 |
igr | igr 2640 |    2    3    5 |    1    2    5 |
igs | igs 2686 |    2    2    5 |    1    2    5 |
jpl | jpl 2599 |    3    3    6 |U   2    2    6 |
mit | mit 2688 |U   2    3    9 |U   3    3    7 |


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 5.1274.0   GPS week: 1274   Day: 0   MJD: 53162.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    1    1    4 |    1    1    3 |
emr | emr 2673 |    2    2    5 |    2    4    7 |
esa | esa 2688 |    2    3    6 |    1    2    5 |
gfz | gfz 2665 |    2    2    4 |    1    2    5 |
igr | igr 2675 |    2    2    4 |    1    2    5 |
igs | igs 2683 |    2    2    5 |    1    2    4 |
jpl | jpl 2565 |    2    2    6 |    1    2    5 |
mit | mit 2688 |    2    2    5 |    2    2    6 |

Table 5.1274.1   GPS week: 1274   Day: 1   MJD: 53163.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    2    1    4 |    1    1    3 |
emr | emr 2676 |    2    2    5 |    2    2    5 |
esa | esa 2688 |    2    3    5 |    2    3   11 |
gfz | gfz 2663 |    3    2    5 |    1    2    5 |
igr | igr 2688 |    2    2    4 |    1    2    5 |
igs | igs 2687 |    2    2    4 |    1    2    5 |
jpl | jpl 2500 |    3    3    7 |    2    2    7 |
mit | mit 2688 |    3    5   19 |    3    2   10 |

Table 5.1274.2   GPS week: 1274   Day: 2   MJD: 53164.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    1    1    5 |    1    1    2 |
emr | emr 2672 |    2    2    8 |    1    2    5 |
esa | esa 2685 |    3    2    7 |    1    2    5 |
gfz | gfz 2657 |    2    2    6 |    2    2    4 |
igr | igr 2686 |    2    2    6 |    1    1    4 |
igs | igs 2685 |    2    2    6 |    1    2    4 |
jpl | jpl 2580 |    3    2    7 |    2    2    5 |
mit | mit 2688 |    2    2    7 |    1    2    5 |

Table 5.1274.3   GPS week: 1274   Day: 3   MJD: 53165.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    1    1    3 |    1    1    3 |
emr | emr 2672 |    2    2    5 |    2    1    6 |
esa | esa 2688 |    2    2    5 |    1    2    5 |
gfz | gfz 2653 |    2    2    5 |    1    2    5 |
igr | igr 2674 |    2    3    5 |    1    2    4 |
igs | igs 2688 |    2    2    4 |    1    2    4 |
jpl | jpl 2672 |    2    4    7 |    2    2    6 |
mit | mit 2688 |    2    2    5 |    1    2    6 |

Table 5.1274.4   GPS week: 1274   Day: 4   MJD: 53166.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2592 |    2    2    5 |    1    1    3 |
emr | emr 2668 |    2    3    6 |    2    2    6 |
esa | esa 2592 |    3    3    6 |    1    2    6 |
gfz | gfz 2650 |    2    2    5 |    2    2    5 |
igr | igr 2548 |    2    4    5 |    1    1    5 |
igs | igs 2684 |    2    3    5 |    1    2    5 |
jpl | jpl 2668 |    2    3    8 |    2    2    7 |
mit | mit 2688 |    2    3    5 |    2    3    5 |

Table 5.1274.5   GPS week: 1274   Day: 5   MJD: 53167.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    2    2    4 |    1    1    3 |
emr | emr 2666 |    2    2    4 |    3    2    6 |
esa | esa 2688 |    3    2    5 |    1    2    6 |
gfz | gfz 2649 |    2    2    5 |    2    2   11 |
igr | igr 2522 |    3    3    6 |    2    2    5 |
igs | igs 2686 |    2    2    4 |    2    1    4 |
jpl | jpl 2559 |    3    3    5 |    3    2    7 |
mit | mit 2688 |    2    3    4 |    2    2    6 |

Table 5.1274.6   GPS week: 1274   Day: 6   MJD: 53168.0

CENT| CLK EPO  |      BRUS      |      TOW2      |
----|----------|----------------|----------------|
cod | cod 2688 |    2    2    4 |    1    1    4 |
emr | emr 2664 |    3    3    5 |    2    2    6 |
esa | esa 2592 |    3    3    5 |    1    2    7 |
gfz | gfz 2645 |    2    3    5 |    2    2    6 |
igr | igr 2686 |    3    3    4 |    2    2    4 |
igs | igs 2688 |    3    3    4 |    1    1    5 |
jpl | jpl 2651 |    3    4    5 |    2    2    6 |
mit | mit 2688 |    3    4    6 |    5    4   10 |

                                                                               
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 6.1274   GPS week: 1274   MJD: 53162.500-53168.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -3     -7      4     -4    -11 |     -16     24
            |      2      2      5      8      7 |       5
emr   uuuuu |     -3     -2     -3     10     18 |      15     37
            |      3      2      5     16     10 |       7
esa   uuuuu |      5      7      5     -2     -2 |       9     21
            |      3      3      4     14      6 |       3
gfz   uuuuu |      3      7     -3     -6      7 |       0     25
            |      2      3      9      6     10 |       4
igr   xxxxx |      5      5     -9     -7      3 |      -3     23
            |      3      2     15      9     12 |       3
irf   xxxxx |     -1      2      4     -3      2 |      -9     25
            |      1      1      3      7     10 |       4
jpl   uuuux |      0      0    -13     13     -5 |      30     53
            |      2      1     14     15     49 |       5
mit   uuuuu |      3    -11      5     -3     -1 |      44     50
            |      3      3      8      8     12 |       3
ngs   xxxxx |    -18     36      1    -10    -32 |     -17     65
            |     17     11     23     23     78 |      17
sio   uuuuu |     -5      8      2     -4     -1 |      46     52
            |      3      2      3     11     13 |       3

                                                                               
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 7.1274.0   GPS week: 1274   Day: 0   MJD: 53162.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |      0     -5     10     -4    -18 |     -11     22
emr   uuuuu |     -3     -2    -12    -16     29 |      13     38
esa   uuuuu |      9      8      9     28     -9 |      10     23
gfz   uuuuu |      0      8      7    -15     13 |      -1     26
igr   xxxxx |      2      6    -11    -18     -1 |      -3     25
irf   xxxxx |      0      0      3     10     19 |     -11     26
jpl   uuuux |      1     -2    -34     32     86 |      20     41
mit   uuuuu |     -4    -13      3      0     19 |      43     49
ngs   xxxxx |     -1     34     37    -18     97 |     -45     95
sio   uuuuu |     -4      8      3     10     19 |      41     48

Table 7.1274.1   GPS week: 1274   Day: 1   MJD: 53163.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -4     -8     -6      2    -17 |     -11     22
emr   uuuuu |     -1      3     -3     14     17 |      13     38
esa   uuuuu |      7     13     -1    -15     -6 |      11     24
gfz   uuuuu |      1      5      8     -9     19 |      -1     26
igr   xxxxx |     10      5     14    -10     13 |      -3     25
irf   xxxxx |     -2      0      2    -10      9 |      -9     26
jpl   uuuux |      0      1    -26     21     13 |      27     54
mit   uuuuu |      1    -16     15     -4      8 |      46     52
ngs   xxxxx |     -5     21    -31     -4     48 |     -28     92
sio   uuuuu |     -1      4      8    -12      8 |      45     52

Table 7.1274.2   GPS week: 1274   Day: 2   MJD: 53164.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -2    -10      6    -17    -13 |     -12     22
emr   uuuuu |     -8     -4      0      8     23 |      13     38
esa   uuuuu |      8      6      0    -11      3 |      12     24
gfz   uuuuu |      2     11     -2      1      2 |       1     27
igr   xxxxx |      3      7    -16     -6     11 |       0     25
irf   xxxxx |      2      2      6      2      4 |      -7     26
jpl   uuuux |     -2     -2     -8     17      0 |      32     56
mit   uuuuu |      7     -9     -2      7     -4 |      47     54
ngs   xxxxx |    -10     34     15     18    -16 |      -7     71
sio   uuuuu |     -5      6      3     13     10 |      48     54

Table 7.1274.3   GPS week: 1274   Day: 3   MJD: 53165.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -5    -10      6      8    -13 |     -21     27
emr   uuuuu |     -2     -3      5      1     22 |       9     35
esa   uuuuu |      3      2      8     -5     -8 |       7     21
gfz   uuuuu |      5     13    -15     -6     16 |      -4     27
igr   xxxxx |      5      4    -37      8     11 |      -5     24
irf   xxxxx |     -1      3      9     -6      3 |     -12     28
jpl   uuuux |      1     -1    -19     27      0 |      29     55
mit   uuuuu |      3     -9     14    -15      2 |      41     48
ngs   xxxxx |    -10     47      5     -2    -95 |       7     39
sio   uuuuu |     -5     11     -1     -7     -7 |      44     51

Table 7.1274.4   GPS week: 1274   Day: 4   MJD: 53166.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -5     -3      7     -9     -3 |     -23     29
emr   uuuuu |     -1      0     -2     22     21 |      10     36
esa   uuuuu |      3      5      5     -3      5 |       5     19
gfz   uuuuu |      3      4    -11     -2    -11 |      -3     27
igr   xxxxx |      6      3     -6    -17    -17 |      -6     24
irf   xxxxx |      0      2      2     -9     -7 |     -12     28
jpl   uuuux |      2      0      4     -1    -68 |      30     55
mit   uuuuu |      4     -9     -3      2    -17 |      41     48
ngs   xxxxx |    -18     46     -8    -12    -83 |      -6     46
sio   uuuuu |     -7      8      2    -11    -14 |      43     50

Table 7.1274.5   GPS week: 1274   Day: 5   MJD: 53167.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -4     -5      3     -5     -2 |     -20     27
emr   uuuuu |     -2     -4     -6     33     20 |      17     37
esa   uuuuu |      2      6      3     -4     -6 |       8     20
gfz   uuuuu |      6      6     -5    -13      5 |       1     25
igr   xxxxx |      8      5     -5     -7     10 |      -4     22
irf   xxxxx |     -1      1      4     -3     -2 |      -8     24
jpl   uuuux |      0      2     -2     -3    -26 |      31     55
mit   uuuuu |      3     -9      8    -11     -3 |      42     49
ngs   xxxxx |    -38     45    -21      1   -107 |     -15     52
sio   uuuuu |     -6      9      3     -1    -12 |      46     52

Table 7.1274.6   GPS week: 1274   Day: 6   MJD: 53168.500
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -4     -5      5     -3     -9 |     -17     23
emr   uuuuu |     -1     -1     -3     10     -2 |      29     36
esa   uuuuu |      5      6     10     -4      3 |      13     19
gfz   uuuuu |      4      5     -2      0      6 |       8     18
igr   xxxxx |      3      2     -5     -2     -8 |       4     15
irf   xxxxx |     -3      2     -1     -5    -10 |      -2     16
jpl   uuuux |     -3      0     -7     -3    -42 |      36     54
mit   uuuuu |      3    -10     -1      1    -12 |      48     52
ngs   xxxxx |    -47     22     10    -56    -71 |     -26     62
sio   uuuuu |    -10      7     -2    -17     -9 |      52     54




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