[IGSREPORT-7663] Wk 1082 IGS Final Orbits

tim.springer at aiub.unibe.ch tim.springer at aiub.unibe.ch
Fri Oct 20 01:17:23 PDT 2000


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IGS Electronic Report   20 Oct 01:17:32 PDT 2000      Message Number 7663
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Author:  AC Coordinator / AIUB/CODE

Final IGS Orbit Combination - Week 1082   (Oct 01, 2000 - Oct 07, 2000)

Contacts: T.A. Springer (springer 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 (IGS10827.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:

 IGS10820-6.SP3  IGS GPS ephemeris files for days 0-6, week 1082 in SP3 format.
 IGS10827.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS10827.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. Centre clock weights were determined using the following satellites:

         Day | PRN list | Ref. Centre 
        -----+----------+-----------------
          0  |    All   |    COD  (see note below)
          1  |    All   |    COD  (see note below)
          2  |    All   |    COD  (see note below)
          3  |    All   |    COD  (see note below)
          4  |    All   |    COD  (see note below)
          5  |    All   |    COD  (see note below)
          6  |    All   |    COD  (see note below)

     Note: A chosen reference centre is aligned to the broadcast GPS clocks
           using all satellites; all other centres are then aligned to that
           reference centre. The clock weights are computed from the absolute
           deviation of centre's aligned clock corrections with respect to the
           unweighted mean.

5. 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 list
                  ----+--------+---------------
                   1  |  COD   |  ALL
                   2  |  COD   |  ALL

6. The following table lists all maneuvered satellites for this week.
   The ESA solution which modeled the maneuver is provided for that satellite
   on that day as the combined solution. An associated accuracy code of 0
   (unknown) was given since there was no redundancy. These satellites were
   excluded from the long arc evaluation on these days due to unrealistic RMS
   caused by the maneuver.

               PRN | Day |    Date    | Ref. NANU
               ----+-----+------------+-----------
                25 |  0  | 2000_10_01 | 2000155
                25 |  1  | 2000_10_02 | 2000155

7. 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  |  NGS   |  15
                   4  |  NGS   |  11

8. 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 | 15 17 19 23 24
                  ---------+---------------

9. Starting on 04-June-2000 (GPS Week 1065, day 0, MJD 51699) all IGS 
   products, including the IGS combined orbits, are based on the IGS
   realization of the ITRF97 reference frame (IGS97). For more information
   see IGSMAILs #2899 and #2904.

10.Small rotations were applied to the all AC orbit and ERP values in order
   to align them to the IGS97. 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 
   IGS00P04_RS51.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  |  -0.23  +0.08  -1.55   +0.01  -0.03  +0.01   +2.35
       EMR  |  -1.62  -0.02  -0.69   +0.01  -0.01  +0.01   +1.60
       ESA  |  -0.59  +0.61  -1.12   +0.07  +0.04  -0.03   +1.47
       GFZ  |  -0.01  +0.07  -0.25   -0.06  +0.01  -0.06   +1.38
       JPL  |  -0.79  +0.60  -2.05   -0.01  -0.01  -0.02   +2.19
       NGS  |  +0.58  -0.72  +5.94   -0.24  +0.04  +0.10   +2.67
       SIO  |  -0.04  -0.28  +6.01   -0.17  +0.27  +0.05   +1.97

11.In the navigation solution there is an additional solution labeled "igc". 
   The orbit of this solution is the same as the orbit of the "igs" solution. 
   The clocks, however, are based on a new clock combination scheme which 
   uses the clock RINEX files as input. In the near future this "igc" solution 
   will replace the "igs" solution.  The "igc" solution is now included for 
   test purposes only. The preliminary results of the new clock combination 
   may be be found on 
     ftp://ftp.unibe.ch/aiub/springer/clock
       files: clk*.sum   = Summary of the new clock combination
              igc*.clk.Z = Clock RINEX file with combined clocks

12.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.

13.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 (IGS10827.SUM).


Table 1: Week 1082 summary.                       (Oct 01, 2000 - Oct 07, 2000)

Table 1.1082.a   GPS week: 1082   MJD: 51818.0-51824.0

         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  125|0.00 0.00-0.01 -0.06  0.09  0.04 -0.3 0.03 0.02 |    0.0    0.0    0.6
        |0.00 0.00 0.00  0.02  0.03  0.06  0.0           |    0.0    0.0
emr  36 |0.00 0.00 0.00 -0.07  0.00 -0.02  0.3 0.06 0.06 |    0.0    0.0    0.2
        |0.01 0.01 0.02  0.03  0.06  0.08  0.1           |    0.0    0.1
esa  55 |0.00 0.00 0.01 -0.22 -0.04  0.09  0.1 0.07 0.06 |    0.0    0.0    0.2
        |0.00 0.00 0.01  0.07  0.07  0.08  0.1           |    0.0    0.0
gfz  64 |0.00 0.00 0.00  0.02  0.02 -0.03 -0.2 0.02 0.02 |    0.0    0.0    0.1
        |0.00 0.00 0.00  0.03  0.03  0.09  0.0           |    0.0    0.0
igr  n/a|0.00 0.00 0.00 -0.08  0.00  0.04 -0.1 0.03 0.02 |    0.0    0.0    0.1
        |0.00 0.00 0.00  0.04  0.03  0.06  0.0           |    0.0    0.0
jpl  42 |0.00 0.00 0.00  0.01  0.07  0.03  0.3 0.03 0.03 |    0.0    0.0    0.1
        |0.01 0.01 0.01  0.03  0.03  0.06  0.0           |    0.0    0.0
ngs  78 |0.00 0.00 0.03  0.23 -0.01  0.10  0.2 0.11 0.09 | 2191.8-3427.036526.6
        |0.00 0.00 0.01  0.07  0.06  0.09  0.1           | 4487.7 6975.4
sio  106|0.00 0.00 0.01  0.13 -0.25 -0.08  0.2 0.05 0.04 |    0.0    0.0    0.0
        |0.00 0.00 0.00  0.08  0.05  0.24  0.1           |    0.0    0.0

Table 1.1082.b   GPS week : 1082   MJD: 51818.0-51824.0

         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  |   1   2   1   2   1   2   1 |
   3  |   2   2   1   2   2   2   2 |
   4  |   2   2   1   2   1   1   1 |
   5  |   1   1   1   1   2   1   1 |
   6  |   2   2   1   1   1   1   1 |
   7  |   2   2   1   1   2   1   1 |
   8  |   1   2   1   1   1   1   1 |
   9  |   1   1   1   2   1   1   1 |
  10  |   1   2   2   2   1   1   1 |
  11  |   2   2   3   3   9   2   2 |
  13  |   2   2   2   2   2   2   2 |
  15E |   2   2   2  13   2   2   2 |
  17E |   2   2   2   2   1   1   1 |
  19  |   1   1   1   2   1   2   2 |
  20  |   3   3   3   2   2   3   2 |
  21  |   1   1   1   1   1   1   1 |
  22  |   2   2   2   2   2   2   2 |
  23  |   2   2   2   2   2   2   3 |
  24  |   1   2   1   2   2   1   1 |
  25  |   0   0   2   2   1   1   1 |
  26  |   1   1   1   1   2   1   1 |
  27  |   1   1   2   1   1   1   1 |
  28  |   2   3   3   2   3   2   2 |
  29  |   2   1   1   2   1   1   1 |
  30  |   1   1   1   1   1   1   1 |
  31  |   2   2   1   2   1   1   2 |

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 2.1082.0   GPS week: 1082   Day: 0   MJD: 51818.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|0.00 0.00 0.00 -0.08  0.15  0.10 -0.3 0.03 0.03 |   -1.4    1.9    0.2
        |               -0.03  0.06                      |
emr  36 |0.01 0.00-0.01 -0.10 -0.03  0.08  0.3 0.06 0.06 | 1631.0   -1.6    0.2
        |               -0.24  0.17                      |
esa  55 |0.00-0.01 0.01 -0.12 -0.05  0.08  0.2 0.07 0.06 | 1617.0   -1.5    0.2
        |                0.13  0.01                      |
gfz  66 |0.00 0.00 0.00 -0.05  0.06 -0.01 -0.2 0.02 0.02 |   -0.1    0.4    0.1
        |                0.06  0.00                      |
igr  n/a|0.00 0.00 0.00 -0.15 -0.03  0.04  0.0 0.03 0.03 |    0.1   -0.2    0.1
        |               -0.03 -0.01                      |
jpl  42 |-.01 0.00-0.02  0.05  0.11  0.02  0.3 0.03 0.03 |  -19.8    2.0    0.1
        |               -0.04 -0.02                      |
ngs  78 |0.00 0.00 0.04  0.18 -0.06 -0.01  0.2 0.09 0.09 |    0.1    0.2    6.2
        |                0.03 -0.06                      |
sio  105|0.00 0.00 0.01  0.22 -0.34 -0.27  0.2 0.04 0.04 |    0.0    0.0    0.0
        |               -0.04  0.00                      |

Table 2.1082.1   GPS week: 1082   Day: 1   MJD: 51819.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|-.01 0.00 0.00 -0.05  0.06  0.10 -0.2 0.03 0.03 |    2.5   -3.3    1.2
        |                0.05  0.17                      |
emr  36 |0.01-0.01-0.04 -0.09  0.08 -0.12  0.2 0.07 0.07 | 1627.9    1.2    0.2
        |               -0.10  0.13                      |
esa  55 |0.01 0.00 0.01 -0.14  0.01  0.24  0.1 0.07 0.06 | 1613.0    1.1    0.3
        |                0.15  0.05                      |
gfz  65 |0.00 0.00 0.00  0.00  0.02  0.06 -0.3 0.02 0.02 |   -0.1    0.1    0.1
        |                0.07  0.00                      |
igr  n/a|-.01 0.00 0.00 -0.11  0.04  0.10 -0.1 0.03 0.03 |    0.5   -0.5    0.2
        |                0.04  0.12                      |
jpl  42 |0.00 0.00 0.00 -0.02  0.08  0.06  0.2 0.03 0.03 |    2.2   -2.6    0.1
        |               -0.06  0.02                      |
ngs  78 |0.00 0.00 0.03  0.23  0.10 -0.01  0.2 0.10 0.10 |    0.3    0.1    6.8
        |                0.00  0.12                      |
sio  108|0.00 0.00 0.01  0.10 -0.23 -0.36  0.3 0.04 0.04 |    0.0    0.0    0.0
        |               -0.03  0.02                      |

Table 2.1082.2   GPS week: 1082   Day: 2   MJD: 51820.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|0.00 0.00-0.01 -0.03  0.07  0.01 -0.2 0.02 0.02 |   -1.4    3.3    0.8
        |                0.09  0.15                      |
emr  36 |0.00-0.01 0.01 -0.03 -0.04 -0.07  0.4 0.05 0.05 | 1629.0   -3.3    0.1
        |               -0.06  0.12                      |
esa  55 |0.00 0.00 0.00 -0.22 -0.17  0.01  0.3 0.07 0.06 | 1617.0   -3.3    0.2
        |                0.16  0.00                      |
gfz  68 |0.00 0.00 0.00  0.03  0.00  0.08 -0.2 0.02 0.02 |   -0.1   -0.1    0.1
        |                0.05 -0.02                      |
igr  n/a|0.00 0.01 0.00 -0.08 -0.04  0.14 -0.1 0.03 0.03 |   -0.2    0.4    0.2
        |               -0.04  0.14                      |
jpl  42 |0.00-0.01 0.00  0.00  0.07  0.10  0.3 0.03 0.03 |    1.3   -0.6    0.1
        |                0.01 -0.07                      |
ngs  78 |0.00 0.00 0.02  0.19  0.02  0.15  0.1 0.09 0.09 |   -0.6   -1.4    9.4
        |                0.07  0.11                      |
sio  109|0.00 0.00 0.01  0.06 -0.22 -0.30  0.1 0.05 0.04 |    0.0    0.0    0.0
        |                0.01  0.04                      |

Table 2.1082.3   GPS week: 1082   Day: 3   MJD: 51821.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|-.01 0.00 0.00 -0.06  0.08  0.01 -0.3 0.03 0.02 |    0.5   -1.5    0.3
        |                0.06  0.10                      |
emr  36 |0.01 0.01 0.01 -0.06 -0.01 -0.04  0.3 0.06 0.06 |  -60.3   -4.9    0.2
        |               -0.07  0.14                      |
esa  55 |0.00 0.00 0.01 -0.26  0.03  0.08  0.1 0.06 0.06 | 1615.0   -5.0    0.2
        |                0.14 -0.01                      |
gfz  63 |0.00 0.00 0.00  0.05  0.00 -0.01 -0.3 0.02 0.02 |   -0.2    0.1    0.1
        |                0.05  0.02                      |
igr  n/a|0.00 0.00 0.00 -0.04  0.02 -0.02 -0.1 0.02 0.02 |    0.1   -0.3    0.1
        |                0.04  0.04                      |
jpl  42 |0.01-0.01-0.01  0.00  0.05  0.00  0.3 0.03 0.03 |   25.4   -0.2    0.1
        |               -0.04 -0.04                      |
ngs  78 |0.01-0.01 0.02  0.32  0.04  0.11  0.1 0.10 0.09 | 3380.0-5413.059000.0
        |                0.12  0.11                      |
sio  105|-.01 0.00 0.01  0.11 -0.20 -0.09  0.2 0.05 0.04 |    0.0    0.0    0.0
        |                0.03 -0.01                      |

Table 2.1082.4   GPS week: 1082   Day: 4   MJD: 51822.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|-.01 0.00-0.01 -0.06  0.11  0.03 -0.3 0.03 0.02 |    1.9   -2.9    0.2
        |                0.06  0.11                      |
emr  36 |0.00 0.00 0.02 -0.07 -0.07 -0.01  0.2 0.05 0.05 | 1624.0    4.5    0.2
        |               -0.03  0.03                      |
esa  55 |0.00 0.00 0.02 -0.31 -0.07  0.04  0.1 0.06 0.06 |  -24.5    0.5    0.2
        |                0.11  0.05                      |
gfz  66 |0.00 0.00-0.01  0.03  0.01 -0.04 -0.3 0.02 0.02 |    0.8    1.6    0.1
        |                0.01  0.04                      |
igr  n/a|0.00 0.00 0.00 -0.08 -0.01  0.03 -0.1 0.02 0.02 |   -0.3    0.4    0.1
        |                0.07  0.02                      |
jpl  42 |0.02 0.00-0.01  0.07  0.06 -0.06  0.2 0.03 0.03 |    6.0   -6.4    0.1
        |               -0.03 -0.04                      |
ngs  78 |-.01 0.00 0.04  0.15 -0.05  0.21  0.3 0.18 0.08 |11960.0 9999.976540.0
        |                0.24  0.04                      |
sio  108|-.01 0.00 0.00  0.06 -0.23  0.07  0.3 0.05 0.04 |    0.0    0.0    0.0
        |                0.03 -0.02                      |

Table 2.1082.5   GPS week: 1082   Day: 5   MJD: 51823.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|0.00 0.00-0.01 -0.08  0.10 -0.07 -0.3 0.03 0.02 |    0.8   -2.4    0.3
        |                0.10  0.19                      |
emr  36 |0.01 0.00 0.02 -0.09  0.02  0.08  0.3 0.05 0.05 | 1628.0    0.7    0.1
        |               -0.07  0.11                      |
esa  55 |0.00-0.01 0.01 -0.24  0.00  0.05  0.2 0.06 0.05 | 1614.9    0.7    0.2
        |                0.14  0.01                      |
gfz  61 |0.00 0.00-0.01  0.03 -0.01 -0.13 -0.2 0.02 0.02 |   -0.5    0.1    0.1
        |                0.05  0.01                      |
igr  n/a|0.00-0.01 0.00 -0.07 -0.03 -0.04 -0.1 0.02 0.02 |    0.1   -0.3    0.1
        |                0.07  0.10                      |
jpl  42 |0.00 0.01 0.00  0.01  0.05  0.10  0.3 0.03 0.03 |    1.8   -1.3    0.1
        |               -0.10  0.00                      |
ngs  78 |0.00-0.01 0.03  0.32 -0.06  0.19  0.2 0.08 0.08 |    0.0   -0.2    7.5
        |                0.07  0.20                      |
sio  106|0.00-0.01 0.01  0.13 -0.23  0.20  0.2 0.05 0.04 |    0.0    0.0    0.0
        |               -0.02  0.01                      |

Table 2.1082.6   GPS week: 1082   Day: 6   MJD: 51824.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  125|0.00 0.00-0.01 -0.09  0.08  0.06 -0.2 0.02 0.02 |   -3.3    4.6    0.3
        |                0.13  0.20                      |
emr  36 |-.01 0.00 0.00 -0.03  0.07 -0.07  0.2 0.05 0.05 | 1625.9    2.2    0.2
        |               -0.10 -0.02                      |
esa  55 |0.01 0.00 0.02 -0.27 -0.05  0.14  0.0 0.07 0.06 | 1613.0    1.9    0.2
        |                0.12  0.02                      |
gfz  60 |0.00 0.00-0.01  0.02  0.04 -0.16 -0.2 0.02 0.02 |   -0.3    0.8    0.1
        |                0.03  0.01                      |
igr  n/a|0.00 0.00 0.00 -0.03  0.02  0.03 -0.1 0.02 0.02 |   -0.3    0.8    0.1
        |                0.02 -0.02                      |
jpl  42 |0.00 0.00 0.01 -0.01  0.03  0.02  0.3 0.03 0.03 |   -3.6    6.3    0.1
        |               -0.10 -0.05                      |
ngs  78 |0.00 0.00 0.03  0.21 -0.05  0.03  0.2 0.08 0.09 |    2.7   -4.4    7.5
        |                0.18  0.11                      |
sio  104|0.00 0.00 0.01  0.26 -0.29  0.21  0.3 0.05 0.04 |    0.0    0.0    0.0
        |                0.00 -0.02                      |

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 3.1082.0   GPS week: 1082   Day: 0   MJD: 51818.0

        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   3   2   3   2   5   2    1 |    4   7   7   3   6   6  10   6    7
   2  |   2   4   5   3   3   3   7   3    1 |    8  10  10   9   9  10  14   9    9
   3  |   3   6  11   1   3   3   9   5    2 |    6   7   8   4   7   7  13   8    7
   4  |   3   6   6   2   3   3   8   3    2 |    4   6   4   4   5   5  11   4    4
   5  |   2   6   7   2   2   2   5   4    1 |    5   8   9   5   7   8  10   9    7
   6  |   3   6   7   2   3   3   6   4    2 |    5   7  11   5   8   7  12   8    8
   7  |   2   6   5   3   2   3   8   4    2 |    6   6   7   5   6   8  13   7    7
   8  |   2   5   5   2   3   2   6   3    1 |    8   9   9   8   8   8  15   7    8
   9  |   3   5   4   2   2   2   9   3    1 |    7  10   9   6   8   8  12   7    8
  10  |   2   6   7   2   3   3   7   3    1 |    3   6   6   3   5   6  12   5    5
  11  |   4  10   6   2   4   6  15   5    2 |    3  10   8   3   6   7  13   4    6
  13  |   2   5   7   3   3   4   8  10    2 |    5   7  10   4   7   7  11  11    7
 X15E |   3   6 ---   2   4 ---   6   3    2 |    4   5 ---   4   6 ---  12   6    6
  17E |   3   5  12   3   4   3  10   4    2 |    2   3   3   2   2   2   3   3    2
  19  |   4   4   3   2   3   2   5   4    1 |    4   4   4   3   4   4   4   3    4
  20  |   3   9   7   3   4   6  19   5    3 |    4   7   8   6   5   5  13   6    5
  21  |   2   6   4   2   4   3   9   4    1 |    4   7   5   4   5   7  10   6    6
  22  |   3   7   9   2   3   3  15   3    2 |    4   8   9   4   5   7  13   7    6
  23  |   4   9  12   4   5   4   6   5    2 |    3   4   6   3   5   5   7   4    5
  24  |   3   6   5   1   3   3   6   4    1 |    3   6   3   3   5   5   9   5    5
 X25  | --- ---   1 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
  26  |   3   6   4   2   2   2   9   3    1 |    5   6   7   3   6   5  14   7    6
  27  |   2   5   4   2   2   2   6   3    1 |   10   9  11   9   9   9  17   9    9
 X28  |   3   6   7   2   3 ---  14   6    2 |   10  10   9   9   7 ---  14  10    8
  29  |   1   8   8   2   4   3  10   4    2 |    5  10   7   4   7   8  12   7    8
  30  |   2   4   8   2   2   2   6   4    1 |    9   9   9  10   8   8  14   8    8
  31  |   2   8   5   2   3   2   9   4    2 |    6   7   7   4   6   7  14   6    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   6   7   2   3   3   9   4      |T   5   7   7   5   6   6  12   6    6
 WRMS |   3   6   6   2   3   3   9   4      |NE  5   7   7   5   6   6  12   6    6
 MEDI |   3   6   6   2   3   3   8   4      |MD  5   7   8   4   6   7  12   7    7

Table 3.1082.1   GPS week: 1082   Day: 1   MJD: 51819.0

        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   3   2   4   3   6   2    1 |    3   6   3   3   4   3   5   2    2
   2  |   4   6   7   3   3   3   9   4    2 |    7   9   7   8   7   6  12   8    6
   3  |   3   6  14   1   3   3   8   5    2 |    3   7   8   3   4   4   8   4    3
   4  |   4   4   8   2   2   2  10   5    2 |    4   6   7   3   3   3   6   3    3
   5  |   2   5   3   1   3   2   6   3    1 |    6   6   7   6   7   6   7   6    5
   6  |   2   6   9   1   2   3   7   4    2 |    3   7   7   4   4   5   7   5    4
   7  |   2  10   3   2   3   2   7   3    2 |    4   8   4   3   5   4   7   5    3
   8  |   2   5   7   2   3   2  10   4    2 |    6   7   4   5   4   5  10   5    4
   9  |   3   6   4   1   3   2   8   3    1 |    5   6   3   4   5   3   6   3    3
  10  |   1   5  10   2   3   4   9   3    2 |    3   6   7   3   5   4   7   4    3
  11  |   3  10   5   2   4   7  19   4    2 |    3   9   7   3   5   5  14   4    4
  13  |   2   7   6   2   4   3   8  10    2 |    4   7   6   3   5   4   6   9    4
 X15E |   3   4 ---   2   4 ---   9   3    2 |    2   3 ---   2   3 ---   5   2    2
  17E |   4   9   4   2   3   2   6   3    2 |    2   3   3   2   2   2   4   2    2
  19  |   3   5   5   3   3   2   8   3    1 |    3   5   2   3   3   3   5   3    3
  20  |   3   6   5   3   4   6  21   5    3 |    3   7   6   4   4   5   8   4    3
  21  |   2   6   4   1   3   2   8   4    1 |    3   5   5   3   4   4   5   4    3
  22  |   4   6  11   2   4   4  11   6    2 |    6  10   8   5   7   8  11   6    6
  23  |   3   6   6   3   3   3   5   4    2 |    3   3   3   2   2   3   4   2    3
  24  |   3   4   9   2   3   2   9   3    2 |    3   3   4   3   4   3   4   3    3
 X25  | --- ---   2 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
  26  |   1   4   2   2   2   2   8   3    1 |    3   4   4   3   3   3   8   3    3
  27  |   2   7   3   3   2   2   7   4    1 |    6   7   7   7   4   5   7   6    4
 X28  |   4  11   6   2   3 ---  13   6    3 |    7  15  10   9   8 ---  13  11    9
  29  |   1   6   5   2   1   4   7   4    1 |    4   6   4   4   4   6   7   5    4
  30  |   2   8   3   2   2   2   7   3    1 |   10   7   8  10   9  10  12  10    9
  31  |   2  11   8   2   3   2   9   4    2 |    3  11   6   3   5   3   7   4    3
------|--------------------------------------|--------------------------------------
 RMS  |   3   7   7   2   3   3  10   4      |T   4   7   5   4   4   4   8   5    4
 WRMS |   3   7   6   2   3   3  10   4      |NE  4   7   5   4   5   5   8   5    4
 MEDI |   3   6   5   2   3   2   8   4      |MD  3   7   6   3   4   4   7   4    3

Table 3.1082.2   GPS week: 1082   Day: 2   MJD: 51820.0

        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   4   2   3   2   9   3    1 |    4   6   5   3   5   4  10   4    5
   2  |   2   5   8   1   2   3   7   4    1 |    7   8  10   7   7   6   9   7    6
   3  |   2   3   7   2   3   3   6   6    1 |    4   6   5   4   4   4   9   5    5
   4  |   2   5   4   2   2   2   8   4    1 |    3   6   4   3   4   3   9   3    4
   5  |   2   3   6   2   3   3   5   3    1 |    8   9   8   9  10   9  10   8    8
   6  |   2   4   4   2   2   2   7   5    1 |    4   5   6   3   5   5  10   6    5
   7  |   2   8   3   2   1   2   6   4    1 |    5   6   6   4   5   4  10   6    5
   8  |   2   5   7   1   2   2   6   4    1 |    5   7   6   5   6   5  11   5    5
   9  |   2   4   7   2   2   2   5   4    1 |    5   6   6   6   5   4   8   5    6
  10  |   2   6   8   2   2   3   9   4    2 |    3   8   7   3   5   3  11   4    4
  11  |   3  10   5   2   4   6  17   5    3 |    4  10   6   4   4   4  14   3    5
  13  |   2   4   6   3   3   4   8  11    2 |    4   5   6   3   4   5  12  11    5
 X15  |   2   5 ---   2   3 ---  10   4    2 |    2   4 ---   2   3 ---   7   2    4
  17E |   4   5   5   3   4   2  10   4    2 |    2   3   2   3   3   2   5   3    2
  19  |   3   5   6   1   4   2   5   6    1 |    3   4   4   3   3   3   5   3    3
  20  |   3   5   7   2   3   5  21   6    3 |    4   5   7   4   4   5  12   6    4
  21  |   2   4   4   2   2   3   9   4    1 |    3   5   4   3   4   3  10   4    4
  22  |   3   6  13   3   4   4   9   5    2 |    4   8  10   4   6   5  10   5    4
  23  |   3   8  11   2   5   3   7   5    2 |    3   3   8   3   5   4   8   4    4
  24  |   3   4   7   2   2   3   8   4    1 |    3   4   2   4   4   4   8   4    4
 X25  |   3 ---   4 ---   6 ---   8   5    2 |    5 ---   5 ---   6 ---   9   6    4
  26  |   2   4   3   2   4   3   5   4    1 |    3   4   5   4   6   3   9   5    5
  27  |   2   6  10   3   2   2   8   4    2 |    6   9  13   7   7   7  11   8    6
 X28  |   3  11   8   2   3 ---  16   5    3 |    4  12   7   4   4 ---  12   7    4
  29  |   1   6   7   2   2   2   7   4    1 |    4   5   3   3   4   4   9   5    4
  30  |   2   4   6   1   3   2   6   4    1 |    7   9   7   8   7   8  10   8    8
  31  |   2   6   6   2   2   3   6   4    1 |    4   8   6   5   4   4   9   4    5
------|--------------------------------------|--------------------------------------
 RMS  |   2   5   7   2   3   3   9   5      |T   4   6   6   4   5   4   9   5    4
 WRMS |   2   5   6   2   3   3   9   4      |NE  4   6   6   4   4   4   9   5    4
 MEDI |   2   5   6   2   3   3   8   4      |MD  4   6   6   4   5   4  10   5    5

Table 3.1082.3   GPS week: 1082   Day: 3   MJD: 51821.0

        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   4   4   1   2   2   8   2    1 |    4   6   4   2   3   4   8   3    3
   2  |   2   5   8   2   2   3   9   3    2 |    5   7   7   6   4   5  10   5    4
   3  |   2   4   7   2   2   3  12   7    2 |    5   6   5   4   4   4  11   6    4
   4  |   3   5   7   2   2   2   9   4    2 |    4   7   5   4   3   3   8   3    3
   5  |   3   4   4   1   2   2   5   4    1 |    5   6   6   5   5   5   9   5    4
   6  |   2   3   3   2   2   3   7   5    1 |    5   6   5   4   4   5  10   7    5
   7  |   2   5   6   1   2   2   5   5    1 |    6   8   5   5   4   4   9   7    5
   8  |   2   3   2   1   2   2   7   4    1 |    6   6   5   6   5   6  10   5    5
   9  |   3  10   3   2   2   2   4   4    2 |    7  12   6   5   5   6   9   6    6
  10  |   2   7   6   2   2   2   9   3    2 |    4   9   8   3   5   2   9   3    3
  11  |   4   9   7   3   3   6  19   6    3 |    5   8   6   3   4   4  23   5    3
  13  |   2   7   6   3   3   4   7  10    2 |    4   7   7   3   3   5   9  10    4
 X15  |   4  11 ---   2   3 ---  97   4   13 |    3   2 ---   1   2 ---  26   2    2
  17E |   4   4   8   2   4   2   9   3    2 |    2   2   4   2   2   2   3   2    2
  19  |   3   4   9   2   2   3   7   5    2 |    4   4   4   3   3   3   3   3    3
  20  |   2   6   5   3   3   5  18   7    2 |    3   6   6   4   4   5   8   6    3
  21  |   2   5   3   2   2   3  11   4    1 |    4   7   5   5   4   3   9   4    3
  22  |   3   7  12   2   2   4  10   4    2 |    4   8  11   4   4   3  10   4    3
  23  |   5   6  11   4   2   3   9   6    2 |    2   3   4   3   2   3   5   3    3
  24  |   3   6   7   1   2   3   9   4    2 |    4   4   3   3   3   3   8   3    4
  25  |   3   4   3   3   2   3  14   3    2 |    6   5   4   5   4   3  13   5    4
  26  |   2   4   5   3   3   2   6   4    1 |    4   5   4   4   4   3   8   4    3
  27  |   2   4   3   2   2   2   8   4    1 |    8   8   9   7   6   7  12   8    7
 X28  |   3   8   5   2   3 ---  15   6    2 |    7  11   9   8   6 ---  12   8    7
  29  |   2   7   6   2   1   2   8   5    2 |    5   7   4   4   3   3   9   5    4
  30  |   3   5   5   2   2   2   6   4    1 |    9  10   8  10   8   9  15  10    9
  31  |   2   6   4   2   2   3  13   4    2 |    5   6   5   4   4   4  13   4    4
------|--------------------------------------|--------------------------------------
 RMS  |   3   6   6   2   2   3  10   5      |T   5   6   6   4   4   4  11   5    4
 WRMS |   2   6   6   2   2   3   9   4      |NE  5   6   6   4   4   4  12   5    4
 MEDI |   2   5   6   2   2   3   9   4      |MD  5   6   5   4   4   4   9   5    4

Table 3.1082.4   GPS week: 1082   Day: 4   MJD: 51822.0

        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   3   1   2   2   8   3    1 |    4   7   3   3   4   4   7   3    3
   2  |   2   6   7   2   1   3   6   4    1 |    6   8   9   7   5   5   8   7    5
   3  |   3   5   5   2   2   2   8   7    2 |    4   5   3   3   4   3   6   6    3
   4  |   3   6   6   2   2   2   5   4    1 |    5   6   6   4   3   3   7   4    3
   5  |   2   3  10   2   3   2   7   4    2 |    5   6   8   6   4   5   8   5    4
   6  |   2   4   5   2   1   2   9   5    1 |    4   6   7   4   3   4   7   6    4
   7  |   2  10   5   2   1   2   4   4    2 |    5   8   4   5   4   4   5   7    4
   8  |   2   3   3   1   2   2   4   4    1 |    5   7   4   5   4   4   7   5    4
   9  |   4   4   3   2   2   2   4   4    1 |    6   5   6   6   4   5   7   5    4
  10  |   2   4   4   1   1   2   6   5    1 |    3   5   6   3   3   3   5   4    3
  11  |   5   6   8   2   3   6  79   5    9 |    4   6   6   4   3   4  60   3    3
  13  |   2   5   8   3   2   4  10  11    2 |    5   7   8   4   3   5  11  12    4
 X15  |   3   5 ---   2   3 ---   6   4    2 |    2   3 ---   3   2 ---  23   2    2
  17E |   3   4   6   2   4   2   7   4    1 |    2   3   4   2   2   2   3   3    2
  19  |   4   4   3   1   2   1  10   4    1 |    4   4   3   3   3   3   5   3    3
  20  |   2   6   8   2   2   6  19   6    2 |    3   6   8   5   4   5  11   6    4
  21  |   2   5   3   2   2   4   6   4    1 |    3   5   6   4   4   6   6   4    4
  22  |   4   7  11   3   2   3   7   5    2 |    3   8   9   5   5   4   6   4    4
  23  |   4   4   8   3   2   5   7   5    2 |    4   3   4   4   3   4   7   4    3
 X24  |   4  10 ---   3   3   7   6   5    2 |    9   8 ---   9   9   9  11   9    8
  25  |   3   5   6   1   2   3   5   3    1 |    4   6   6   3   4   3   5   4    3
  26  |   3   6  11   3   2   2   6   5    2 |    3   6   9   5   4   4   7   5    3
  27  |   2   3   3   1   2   2   4   3    1 |    8   9   8   7   5   6  11   9    6
 X28  |   3  10   5   2   3 ---  15   5    3 |    7   9   7   8   6 ---   8   9    6
  29  |   2   5   7   1   3   3   5   5    1 |    5   5   5   4   4   5   9   6    3
  30  |   2   5   3   2   2   2   6   3    1 |    5   4   5   5   4   5   7   5    5
  31  |   3   4   4   2   2   2   7   4    1 |    4   6   6   3   4   3   6   4    3
------|--------------------------------------|--------------------------------------
 RMS  |   3   5   6   2   2   3  18   5      |T   4   6   6   4   4   4  14   5    4
 WRMS |   2   5   6   2   2   3   8   4      |NE  4   6   6   4   4   4  17   6    4
 MEDI |   3   5   5   2   2   2   6   4      |MD  4   6   6   4   4   4   7   5    4

Table 3.1082.5   GPS week: 1082   Day: 5   MJD: 51823.0

        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   1   1   3   4   4    1 |    3   5   8   4   3   3   7   3    4
   2  |   2   7   4   2   2   3   7   4    2 |    6   7   7   7   6   6   7   8    6
   3  |   2   4   7   2   3   3  11   6    2 |    3   6   4   3   3   4   7   6    4
   4  |   3   3   6   1   3   2   8   5    1 |    4   4   5   4   5   4   5   4    4
   5  |   2   3   7   2   3   2   6   4    1 |    4   4   8   4   4   4   6   4    4
   6  |   2   3   3   2   3   2   8   6    1 |    2   5   4   4   3   4   8   7    4
   7  |   2   5   4   2   2   3   5   5    1 |    4   6   4   5   5   4   7   8    5
   8  |   2   4   4   1   2   2   6   5    1 |    5   6   8   5   5   5   9   6    5
   9  |   2   4   3   1   2   3   6   4    1 |    6   6   6   6   5   5   7   6    5
  10  |   2   3   6   1   2   3   5   3    1 |    3   5   7   3   3   3   6   3    3
  11  |   4   7   7   2   2   5  17   6    2 |    3   6   7   4   4   5  24   5    4
  13  |   2   6   4   2   2   4   9  10    2 |    3   5   4   4   4   4  10  10    4
 X15  |   3   4 ---   1   2 ---   6   4    2 |    2   3 ---   3   3 ---   5   2    3
  17  |   3   5   4   2   2   3   6   3    1 |    2   3   4   3   3   3   3   3    3
 X19  |   2   5 ---   2   4   4   6   5    2 |    6   5 ---   6   6   6   7   7    5
  20  |   2   8   5   3   3   6  17   8    3 |    3   6   7   5   5   5   8   6    4
  21  |   3   5   3   2   2   2   5   4    1 |    4   6   5   4   4   4   5   4    4
  22  |   3   4  12   2   3   3  10   4    2 |    3   8   8   4   5   4   9   5    4
  23  |   4   5  15   3   4   5   7   6    2 |    5   5   7   6   6   5   6   6    6
 X24  |   2   3 ---   2   2   2   7   4    1 |    8   7 ---   8   8   6   9   8    8
  25  |   2   4   4   1   3   2   7   3    1 |    3   6   5   4   4   4   8   4    4
  26  |   2   6   4   2   2   1   4   4    1 |    3   7   4   5   4   4   7   4    4
  27  |   2   4   6   1   1   2   5   5    1 |    8   8  11   8   6   7   9   9    6
 X28  |   3   7   5   2   2 ---  16   5    2 |    8   8   7   9   6 ---  14   9    8
  29  |   2   5   7   1   3   2   3   4    1 |    3   5   6   4   3   4   5   5    4
  30  |   3   3   4   2   2   3   6   3    1 |    6   5   6   6   6   5   9   6    6
  31  |   2   4   4   2   2   3   8   5    1 |    3   5   3   4   4   4   6   4    4
------|--------------------------------------|--------------------------------------
 RMS  |   3   5   6   2   2   3   8   5      |T   4   5   6   5   4   4   8   5    4
 WRMS |   2   5   5   2   2   3   8   4      |NE  4   5   6   5   4   4   9   5    4
 MEDI |   2   4   5   2   2   3   6   4      |MD  3   6   6   4   4   4   7   6    4

Table 3.1082.6   GPS week: 1082   Day: 6   MJD: 51824.0

        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   3   1   2   2   5   3    1 |    4   9   8   8   7   7   9   7    6
   2  |   2   4  10   1   3   3   5   4    1 |    9  12  11  12   9  10  10  10    9
   3  |   2   4   6   2   1   3   8   6    2 |    5   9   8   8   6   8  10   8    6
   4  |   3   5   5   2   2   3   8   5    1 |    4   6   6   8   6   6   6   6    5
   5  |   2   5   6   1   3   1   8   4    1 |    4   8  10   9   6   7   7   7    6
   6  |   2   5   3   2   1   3   6   6    1 |    5  10   9   9   6   7   7  10    7
   7  |   2   6   6   2   3   2   6   4    1 |    5   7   8   7   5   6   7   8    5
   8  |   2   3   6   2   2   4   3   4    1 |    5   7   7   9   6   8   7   7    6
   9  |   2   6   4   1   2   2   8   4    1 |    7   8   6   9   7   7  11   7    7
  10  |   2   8   5   1   4   4   4   4    1 |    3   8   8   7   7   5   6   6    5
  11  |   3   7  10   1   3   6  18   6    2 |    4   8  10   7   5   7  10   6    5
  13  |   2   7   7   2   2   4   6  10    2 |    4  10  12   9   7   7   7  12    7
 X15  |   4   4 ---   2   3 ---   6   4    2 |    2   5 ---   7   5 ---   6   5    5
  17  |   2   4   4   2   3   2  10   3    1 |    3   4   4   4   3   4   4   4    4
 X19  |   3   6 ---   4   2   6   6   5    2 |    8   7 ---   9   8   7   9   7    8
  20  |   2   5   7   1   3   6  16   8    2 |    4  10  11  10   6   8   7   7    7
  21  |   3   4   3   1   2   2   9   3    1 |    4   7   8   9   7   7   7   8    7
  22  |   3   5  12   2   2   4   6   6    2 |    4   7  10   9   5   7   8   7    5
  23  |   4  10  18   4   2   4   6   6    3 |    4   6   8   7   6   6   6   7    7
 X24  |   2   4 ---   2   3   3   5   5    1 |    4   6 ---   6   5   6   7   6    5
  25  |   2   4   4   2   2   3   9   3    1 |    4   5   7   7   6   6   7   6    6
  26  |   2   4   6   3   3   2   5   4    1 |    4   5   8   8   5   6   6   7    5
  27  |   2   3   7   2   3   2   5   4    1 |    9  10  12  11   8   9  10  12    8
 X28  |   2   8   6   2   3 ---  15   5    2 |    8  14  14  13  10 ---   8  10   10
  29  |   2   6   6   1   1   2   4   4    1 |    5   7   8   8   6   7   8   8    6
  30  |   2   2   4   2   2   1   7   4    1 |    4   7  10  10   7   8   7   9    7
  31  |   2   4   5   3   3   4  12   4    2 |    5  10  10  10   7   9   7   7    7
------|--------------------------------------|--------------------------------------
 RMS  |   2   5   7   2   2   3   8   5      |T   5   8   9   8   6   7   7   7    6
 WRMS |   2   5   6   2   2   3   9   4      |NE  4   7   9   8   6   6   7   7    6
 MEDI |   2   5   6   2   2   3   6   4      |MD  4   7   8   9   6   7   7   7    6

 
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 4.1082   GPS week: 1082   MJD: 51818.0-51824.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2428 |U   3    4    6 |U   5    6   10 |U   6    8   16 |
emr | emr 2522 |    2    2    4 |U   2    2    5 |    5    7   14 |
esa | esa 2415 |    5    3    8 |    2    3    5 |    8    8   17 |
gfz | gfz 2537 |    2    2    4 |U   1    2    5 |    7    7   15 |
igc | igc 2545 |    2    2    4 |    1    2    5 |    7    8   16 |
igr | igr 2561 |    3    2    6 |    1    3    5 |    7    7   16 |
igs | igs 2583 |    2    2    4 |    1    2    5 |    7    8   16 |
jpl | jpl 2350 |    2    3    4 |U   2    2    5 |    9    8   17 |


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 5.1082.0   GPS week: 1082   Day: 0   MJD: 51818.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2470 |    4    7    8 |    3    5    8 |    5    4   13 |
emr | emr 2455 |    2    3    5 |    2    3    5 |    5    3    6 |
esa | esa 2465 |   12    5   17 |    2    2    6 |    4    4    6 |
gfz | gfz 2489 |    2    2    5 |    1    2    5 |    4    3    5 |
igc | igc 2492 |    3    3    6 |    1    1    5 |    3    3    4 |
igr | igr 2496 |    4    3    6 |    2    3    6 |    4    3    4 |
igs | igs 2569 |    3    3    6 |    1    2    5 |    4    3    5 |
jpl | jpl 2300 |    2    3    5 |    1    1    6 |    4    4    6 |

Table 5.1082.1   GPS week: 1082   Day: 1   MJD: 51819.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2452 |    3    4    6 |    4    6   10 |    6    9    8 |
emr | emr 2491 |    2    3    5 |    2    2    5 |    3    3    4 |
esa | esa 2479 |    2    3    7 |    2    3    6 |    5    5    7 |
gfz | gfz 2488 |    2    3    4 |    2    2    4 |    2    2    4 |
igc | igc 2486 |    3    3    4 |    2    2    5 |    3    2    4 |
igr | igr 2496 |    6    4   12 |    2    2    3 |    3    2    3 |
igs | igs 2579 |    2    3    5 |    2    2    4 |    3    2    4 |
jpl | jpl 2299 |    2    4    5 |    2    2    6 |    3    2    5 |

Table 5.1082.2   GPS week: 1082   Day: 2   MJD: 51820.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2549 |    2    3    4 |    3    6    6 |    5   12   14 |
emr | emr 2490 |    1    2    4 |    1    2    6 |    6   10   15 |
esa | esa 2488 |    2    2    3 |    2    4    5 |    6   10   16 |
gfz | gfz 2492 |    1    1    2 |    1    2    5 |    6    9   12 |
igc | igc 2495 |    1    3    3 |    1    3    5 |    5   10   15 |
igr | igr 2592 |    1    2    2 |    1    3    5 |    6    9   13 |
igs | igs 2590 |    1    2    3 |    1    3    5 |    6    9   13 |
jpl | jpl 2300 |    2    3    4 |    2    3    6 |    5   12   17 |

Table 5.1082.3   GPS week: 1082   Day: 3   MJD: 51821.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2557 |    4    4    8 |    4    4   11 |    6    8   16 |
emr | emr 2557 |    1    1    4 |    1    1    6 |    4    8   15 |
esa | esa 2489 |    2    1    4 |    2    2    6 |    4   10   14 |
gfz | gfz 2572 |    1    1    4 |    1    2    6 |    3    5   11 |
igc | igc 2589 |    2    2    4 |    1    2    6 |    4   10   16 |
igr | igr 2590 |    1    1    4 |    1    2    6 |    5    8   16 |
igs | igs 2590 |    1    2    4 |    1    2    6 |    4   10   17 |
jpl | jpl 2374 |    2    3    4 |    2    2    5 |    5    9   18 |

Table 5.1082.4   GPS week: 1082   Day: 4   MJD: 51822.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2091 |    3    4    6 |    9    9   14 |    8   10   31 |
emr | emr 2479 |    2    2    4 |    1    3    6 |    9   12   30 |
esa | esa 2376 |    2    2    6 |    2    2    6 |   19   16   38 |
gfz | gfz 2566 |    1    1    3 |    1    2    6 |   18   15   36 |
igc | igc 2569 |    1    2    3 |    1    3    6 |   17   16   36 |
igr | igr 2570 |    2    1    4 |    1    3    6 |   17   15   35 |
igs | igs 2570 |    1    2    3 |    1    3    6 |   17   15   36 |
jpl | jpl 2378 |    2    3    5 |    1    2    5 |   21   13   36 |

Table 5.1082.5   GPS week: 1082   Day: 5   MJD: 51823.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2469 |    3    2    5 |    2    2    6 |    4    5    5 |
emr | emr 2590 |    2    2    4 |    1    2    4 |    2    2    4 |
esa | esa 2304 |    2    2    5 |    2    2    5 |    3    2    5 |
gfz | gfz 2579 |    2    2    4 |    1    2    4 |    2    1    3 |
igc | igc 2592 |    2    2    3 |    1    2    4 |    2    2    3 |
igr | igr 2592 |    2    2    4 |    2    3    5 |    2    1    4 |
igs | igs 2592 |    2    2    4 |    1    2    4 |    2    1    3 |
jpl | jpl 2399 |    2    2    4 |    1    2    4 |    2    2    3 |

Table 5.1082.6   GPS week: 1082   Day: 6   MJD: 51824.0

CENT| CLK EPO  |      BRUS      |      TOW2      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2407 |    4    3    5 |    4    5    9 |    5    4   11 |
emr | emr 2592 |    2    2    4 |    1    2    3 |    1    2    3 |
esa | esa 2304 |    2    3    5 |    2    2    5 |    3    2    5 |
gfz | gfz 2570 |    2    2    4 |    1    2    4 |    2    1    3 |
igc | igc 2592 |    2    3    4 |    1    2    4 |    1    1    3 |
igr | igr 2592 |    2    2    4 |    1    2    4 |    2    1    3 |
igs | igs 2592 |    2    3    4 |    1    2    5 |    1    1    3 |
jpl | jpl 2400 |    2    3    4 |    1    2    3 |    2    2    3 |

                                                                               
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 6.1082   GPS week: 1082   MJD: 51818.5-51824.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -15      1     -4     -7      0 |     -11     21
            |      4      4     11      7      8 |       3
emr   uuuuu |    -10     17     -6     18    -12 |      23     32
            |      8      6     12     16     10 |       2
esa   uuuuu |      4      0     -2     -4    -12 |      43     47
            |      3      2     13      7     12 |       1
gfz   uuuuu |      1     -4      3     -3     15 |      -9     27
            |      2      3     10     10      8 |       5
igr   xxxxx |     -4      4     -8     -7     13 |      -9     25
            |      6      4     16     12      9 |       5
irf   xxxxx |      1      7      0     -4     12 |      -6     21
            |      2      2      4      5      8 |       4
jpl   uuuuu |      3     11     -2      9    -11 |      -9     24
            |      3      4     15     16     10 |       2
ngs   uuuuu |     -4    -27      8      4    -31 |      21     56
            |      6      8     24     51     16 |       6
sio   uuuuu |     28    -10      3     -5     31 |     -28     36
            |      3      2     11      8     10 |       6

                                                                               
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 7.1082.0   GPS week: 1082   Day: 0   MJD: 51818.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -10      8    -22    -11     -6 |     -15     21
emr   uuuuu |    -20     28     12     23    -11 |      26     34
esa   uuuuu |      1     -2     -7    -10    -33 |      43     45
gfz   uuuuu |     -1     -8     -3     -3     21 |     -13     26
igr   xxxxx |     -1      6      5     -6     24 |     -15     26
irf   xxxxx |     -2      4      7     -9      9 |     -10     18
jpl   uuuuu |     -2      6      5     20     -3 |     -11     26
ngs   uuuuu |      7    -23     10      5    -17 |      30     66
sio   uuuuu |     25    -10     23    -10     25 |     -35     38

Table 7.1082.1   GPS week: 1082   Day: 1   MJD: 51819.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -17      3      7    -20      2 |     -14     20
emr   uuuuu |    -12     18    -19     40    -24 |      25     34
esa   uuuuu |      2     -1      6     -9     -8 |      43     45
gfz   uuuuu |      2     -6     11    -18     17 |     -13     26
igr   xxxxx |    -10      3    -39     12     25 |     -14     26
irf   xxxxx |      2      7      1     -7     21 |     -10     18
jpl   uuuuu |     -2     11    -17     30    -16 |      -9     24
ngs   uuuuu |     -7    -17      4     50    -32 |      28     65
sio   uuuuu |     27     -8     -7      0     41 |     -34     37

Table 7.1082.2   GPS week: 1082   Day: 2   MJD: 51820.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -17      1     -4     -7      0 |     -14     20
emr   uuuuu |    -12     16     -2     -5    -15 |      23     33
esa   uuuuu |      5      0      3    -13     -9 |      41     44
gfz   uuuuu |      4     -2     -4     -1      5 |     -12     25
igr   xxxxx |    -13     12    -19    -10      2 |     -14     26
irf   xxxxx |      1      9     -1    -12     16 |     -10     18
jpl   uuuuu |      7      7      4     14      0 |     -10     24
ngs   uuuuu |     -7    -22     51     54    -37 |      20     54
sio   uuuuu |     24     -9     -9    -18     29 |     -32     36

Table 7.1082.3   GPS week: 1082   Day: 3   MJD: 51821.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12      2      7      0      4 |     -12     20
emr   uuuuu |    -15     15    -10      7    -20 |      23     33
esa   uuuuu |      6      0     -9      3      3 |      42     45
gfz   uuuuu |      0     -4    -10     -8     17 |     -10     26
igr   xxxxx |     -3      3      2    -10      6 |     -10     24
irf   xxxxx |      1      7     -6     -1     13 |      -7     20
jpl   uuuuu |      3     10     18      0    -18 |      -7     24
ngs   uuuuu |     -7    -28    -28     51    -10 |      18     53
sio   uuuuu |     29    -13      4     -5     18 |     -29     36

Table 7.1082.4   GPS week: 1082   Day: 4   MJD: 51822.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -13      3    -17      0     14 |     -10     21
emr   uuuuu |     -3     11    -18     15    -15 |      21     31
esa   uuuuu |     -1      3    -12      2    -11 |      44     48
gfz   uuuuu |     -3      0     11      9     22 |      -7     27
igr   xxxxx |     -2      1     -7      6     20 |      -6     24
irf   xxxxx |      0      7     -3      0     -3 |      -3     23
jpl   uuuuu |      4      9     11    -18    -28 |      -7     24
ngs   uuuuu |      0    -41     12    -24    -22 |      20     54
sio   uuuuu |     30    -13     -3      8     22 |     -26     36

Table 7.1082.5   GPS week: 1082   Day: 5   MJD: 51823.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -17     -3      1     -6     -2 |      -8     23
emr   uuuuu |     -8     15      8     35      5 |      21     30
esa   uuuuu |      8     -1     20     -4     -5 |      45     49
gfz   uuuuu |      3     -5     -2     -9      4 |      -4     29
igr   xxxxx |     -6     -1      4    -24      5 |      -3     26
irf   xxxxx |      4      6      2      3     22 |      -2     23
jpl   uuuuu |      3     15    -16     16     -7 |      -7     24
ngs   uuuuu |    -13    -24      9    -30    -60 |      18     52
sio   uuuuu |     31     -9      5     -3     40 |     -23     36

Table 7.1082.6   GPS week: 1082   Day: 6   MJD: 51824.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -21     -5     -1     -1    -10 |      -7     22
emr   uuuuu |      3     19    -12     12     -3 |      20     29
esa   uuuuu |      5      2    -18      7    -21 |      45     49
gfz   uuuuu |      2     -2     16     12     21 |      -2     28
igr   xxxxx |      5      5      0    -14     13 |      -3     26
irf   xxxxx |      2      7      2     -5      8 |       1     23
jpl   uuuuu |      6     16    -20      0     -7 |      -9     24
ngs   uuuuu |     -5    -34     -4    -79    -38 |      13     51
sio   uuuuu |     31    -10     12     -9     42 |     -21     35



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