[IGSREPORT-6850] Wk 1044 IGS Final Orbits

tim.springer at aiub.unibe.ch tim.springer at aiub.unibe.ch
Fri Jan 28 06:23:07 PST 2000


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IGS Electronic Report   28 Jan 06:23:15 PST 2000      Message Number 6850
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Author:  AC Coordinator / AIUB/CODE

Final IGS Orbit Combination - Week 1044   (Jan 09, 2000 - Jan 15, 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 (IGS10447.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:

 IGS10440-6.SP3  IGS GPS ephemeris files for days 0-6, week 1044 in SP3 format.
 IGS10447.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS10447.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 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
               ----+-----+------------+-----------
                06 |  2  | 2000_01_11 | 2000008

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

                  Day | Centre | PRN list
                  ----+--------+---------------
                   4  |  NGS   |  16
                   4  |  ESA   |  18

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

                  ---------+------------------
                  PRN list | 14 15 16 18 23
                  ---------+------------------

8. Starting on 01 August 1999 (GPS Week 1021, day 0, MJD 51391) all IGS 
   products, including the IGS combined orbits, are based on ITRF97.

9. In this weeks 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. Some
   prelimanry 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

10.Starting on 1998-Nov-29 (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 (IGS10447.SUM).


Table 1: Week 1044 summary.                       (Jan 09, 2000 - Jan 15, 2000)

Table 1.1044.a   GPS week: 1044   MJD: 51552.0-51558.0

         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  120|0.00 0.00 0.00  0.09  0.04  0.05 -0.2 0.03 0.03 |    0.1   -0.8    0.7
        |0.00 0.00 0.00  0.04  0.03  0.04  0.0           |    4.1    7.2
emr  37 |0.00-0.01 0.01  0.10 -0.14  0.27  0.3 0.07 0.07 | -134.0  -23.9    0.3
        |0.01 0.02 0.02  0.07  0.08  0.18  0.2           | 1539.0   12.7
esa  58 |0.00 0.00 0.00  0.00  0.02  0.08  0.2 0.08 0.07 | -872.9  -26.0    0.3
        |0.00 0.01 0.01  0.14  0.13  0.13  0.1           |  387.9   12.3
gfz  54 |0.00 0.00-0.01  0.05  0.00 -0.20 -0.1 0.03 0.03 |   -0.2   -0.8    0.1
        |0.00 0.00 0.00  0.04  0.05  0.09  0.0           |    2.5    5.2
igr  n/a|0.00 0.00 0.00 -0.10  0.00 -0.18 -0.1 0.04 0.04 |    0.0   -0.3    0.3
        |0.00 0.01 0.00  0.15  0.13  0.13  0.0           |    0.7    1.4
jpl  42 |0.00 0.00-0.02 -0.11  0.15 -0.10  0.3 0.03 0.03 |    7.5  -13.5    0.3
        |0.01 0.01 0.01  0.15  0.06  0.06  0.1           |   28.7   15.6
ngs  70 |-.01 0.00 0.02 -0.08 -0.49  0.29  0.1 0.08 0.08 |  -15.0   27.9  521.3
        |0.00 0.00 0.01  0.23  0.11  0.32  0.1           |   35.6   66.5
sio  84 |-.01 0.00 0.02 -0.11  0.00  0.08 -0.2 0.05 0.04 |    0.0    0.0    0.0
        |0.00 0.00 0.00  0.04  0.09  0.22  0.1           |    0.0    0.0

Table 1.1044.b   GPS week : 1044   MJD: 51552.0-51558.0

         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
------|-----------------------------|------------------------------------------
   1E |   2   2   3   2   2   2   2 |
   2  |   2   2   2   2   2   2   2 |
   3E |   2   2   2   2   2   2   2 |
   4  |   2   2   2   2   1   2   2 |
   5  |   2   2   2   2   2   2   2 |
   6E |   2   2   0   2   2   1   2 |
   7E |   2   2   2   2   2   2   2 |
   8  |   2   2   2   2   2   2   2 |
   9  |   2   2   2   2   2   1   2 |
  10  |   2   2   2   1   2   2   2 |
  11  |   4   5   5   5   4   4   4 |
  13E |   2   2   2   2   2   2   2 |
  14  |   5   2   8   6   2   5   2 |
  15  |   3  11   3   3   2   3   3 |
  16  |   2   2   9   2  16   9   3 |
  17  |   2   1   2   1   1   2   2 |
  18E |   2   2   4   7   5   5   3 |
  19  |   2   2   2   2   2   2   2 |
  21  |   2   2   2   2   2   2   2 |
  22  |   2   2   2   2   2   2   2 |
  23  |   2   2   3   2   3   2   2 |
  24  |   2   2   2   2   2   2   2 |
  25  |   2   2   2   2   2   2   2 |
  26E |   1   2   1   1   1   2   2 |
  27  |   1   2   2   2   2   2   2 |
  29E |   1   2   2   2   2   2   2 |
  30  |   2   2   2   1   2   1   1 |
  31E |   2   2   3   2   2   2   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 2.1044.0   GPS week: 1044   Day: 0   MJD: 51552.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00 0.00  0.05  0.01  0.10 -0.3 0.03 0.02 |    6.4   -8.9    0.4
emr  34 |0.00-0.01 0.04  0.15 -0.08  0.15  0.1 0.07 0.07 | 2122.9  -13.7    0.4
esa  58 |0.00-0.01-0.01  0.13  0.00  0.12  0.3 0.07 0.06 |    0.0    0.0    0.0
gfz  52 |0.00 0.00-0.01  0.02 -0.04 -0.04 -0.1 0.03 0.03 |    2.9   -7.2    0.1
igr  n/a|0.00-0.01 0.00  0.04  0.16 -0.07  0.0 0.05 0.04 |    0.3   -1.7    0.4
jpl  41 |0.00 0.00-0.02  0.05  0.14 -0.05  0.4 0.03 0.03 |  -23.9  -19.2    0.2
ngs  70 |-.01 0.00 0.02 -0.34 -0.34 -0.18  0.1 0.08 0.08 |  -11.9   16.7   81.6
sio  86 |0.00 0.00 0.02 -0.13  0.02 -0.14 -0.3 0.05 0.05 |    0.0    0.0    0.0

Table 2.1044.1   GPS week: 1044   Day: 1   MJD: 51553.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00 0.01  0.09  0.01  0.03 -0.2 0.03 0.03 |    2.9   -7.1    0.6
emr  37 |0.00 0.00-0.02  0.15 -0.19  0.17  0.6 0.07 0.07 | -951.8  -36.5    0.3
esa  58 |0.01 0.00 0.00  0.16 -0.09  0.11  0.3 0.08 0.07 | -951.4  -36.5    0.3
gfz  56 |0.00 0.00 0.00  0.06  0.08 -0.17 -0.2 0.03 0.03 |   -1.8   -0.4    0.1
igr  n/a|0.00-0.01 0.00  0.16 -0.01 -0.20  0.0 0.04 0.03 |    0.5   -0.5    0.2
jpl  42 |0.00 0.02-0.01 -0.07  0.04 -0.13  0.3 0.03 0.03 |    3.7  -21.9    0.3
ngs  70 |-.01 0.00 0.03 -0.29 -0.36 -0.05 -0.2 0.08 0.08 |    2.0    0.4   79.5
sio  84 |-.01-0.01 0.02 -0.14  0.05  0.34  0.0 0.04 0.04 |    0.0    0.0    0.0

Table 2.1044.2   GPS week: 1044   Day: 2   MJD: 51554.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00 0.00  0.04  0.06 -0.01 -0.3 0.03 0.03 |    1.0   -4.0    0.5
emr  36 |0.00 0.01 0.02  0.14 -0.08  0.13  0.2 0.09 0.08 | 2113.0   -0.7    0.3
esa  58 |0.00-0.01-0.01 -0.15 -0.04  0.11  0.3 0.10 0.08 | -970.8  -30.8    0.5
gfz  54 |0.00 0.00-0.01  0.05 -0.01 -0.23 -0.1 0.03 0.03 |   -2.5    5.1    0.1
igr  n/a|0.00 0.00 0.00 -0.12  0.00 -0.32 -0.1 0.04 0.04 |   -0.2   -0.5    0.4
jpl  42 |0.01-0.01-0.02 -0.01  0.18 -0.10  0.5 0.04 0.04 |   67.3  -17.4    0.4
ngs  70 |-.01 0.01 0.02 -0.25 -0.49  0.16  0.0 0.08 0.08 |    0.9    1.5   81.0
sio  85 |-.01 0.00 0.02 -0.05 -0.03  0.30 -0.3 0.05 0.04 |    0.0    0.0    0.0

Table 2.1044.3   GPS week: 1044   Day: 3   MJD: 51555.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.01 0.00 0.00  0.10  0.10 -0.01 -0.2 0.03 0.03 |   -5.7   12.3    0.6
emr  38 |0.02-0.02 0.02  0.12 -0.10  0.17  0.2 0.07 0.07 |-1017.0  -26.5    0.3
esa  58 |0.00 0.00 0.00 -0.21 -0.19  0.31  0.3 0.10 0.08 |-1008.0  -26.4    0.4
gfz  58 |0.00 0.01-0.01  0.07 -0.05 -0.18 -0.2 0.03 0.02 |    0.0    0.4    0.1
igr  n/a|0.00 0.00 0.00 -0.26 -0.07 -0.35 -0.1 0.04 0.04 |   -0.5    0.3    0.4
jpl  42 |-.01 0.00-0.03 -0.09  0.21 -0.13  0.3 0.04 0.04 |   11.3  -38.4    0.4
ngs  70 |-.01 0.01 0.02 -0.08 -0.57  0.34  0.2 0.07 0.07 |  -95.1  177.9 1365.0
sio  85 |-.01 0.00 0.02 -0.13  0.10  0.22  0.0 0.04 0.04 |    0.0    0.0    0.0

Table 2.1044.4   GPS week: 1044   Day: 4   MJD: 51556.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00 0.00  0.11  0.05  0.10 -0.3 0.03 0.03 |    1.6   -2.8    0.7
emr  37 |-.01-0.04 0.00  0.15 -0.26  0.36  0.3 0.06 0.06 |-1039.0  -35.9    0.3
esa  58 |0.00 0.00 0.01 -0.05  0.15 -0.02  0.2 0.07 0.06 |-1030.0  -35.8    0.3
gfz  51 |0.00 0.00-0.01  0.02  0.00 -0.20 -0.1 0.03 0.03 |    3.2   -8.3    0.1
igr  n/a|-.01 0.00-0.01 -0.08 -0.18 -0.19  0.0 0.04 0.03 |   -1.4    2.4    0.3
jpl  42 |0.01 0.01-0.01 -0.09  0.16 -0.20  0.3 0.03 0.03 |    5.8   -6.4    0.4
ngs  70 |-.01 0.00 0.01 -0.04 -0.63  0.51  0.2 0.08 0.08 |    0.9    1.5   81.8
sio  86 |0.00 0.00 0.02 -0.14  0.01  0.13 -0.1 0.05 0.04 |    0.0    0.0    0.0

Table 2.1044.5   GPS week: 1044   Day: 5   MJD: 51557.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00 0.00  0.09  0.02  0.07 -0.3 0.03 0.03 |   -3.2    3.2    0.8
emr  37 |0.01 0.00 0.03  0.00 -0.08  0.29  0.2 0.07 0.07 |-1069.0  -27.3    0.3
esa  58 |-.01 0.01 0.01  0.04  0.10 -0.01  0.3 0.07 0.06 |-1061.0  -26.8    0.3
gfz  54 |0.00 0.00-0.01  0.03 -0.01 -0.30 -0.1 0.03 0.03 |    0.0    0.7    0.2
igr  n/a|0.00 0.00 0.00 -0.19 -0.06 -0.10  0.0 0.04 0.03 |    0.7   -0.8    0.3
jpl  42 |0.01 0.00-0.02 -0.12  0.10 -0.02  0.3 0.03 0.03 |   -3.9    8.5    0.3
ngs  70 |0.00 0.00 0.01  0.15 -0.55  0.64  0.2 0.08 0.08 |   -0.9   -1.6   81.2
sio  79 |0.00-0.01 0.02 -0.06  0.05 -0.19 -0.4 0.05 0.05 |    0.0    0.0    0.0

Table 2.1044.6   GPS week: 1044   Day: 6   MJD: 51558.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  120|0.00 0.00-0.01  0.16  0.02  0.06 -0.2 0.03 0.03 |   -2.5    1.9    0.9
emr  38 |0.02-0.03 0.02  0.00 -0.21  0.62  0.3 0.08 0.08 |-1097.0  -26.8    0.3
esa  58 |-.01-0.01 0.01  0.07  0.18 -0.08  0.1 0.09 0.07 |-1089.0  -25.8    0.2
gfz  53 |0.00 0.00-0.01  0.13  0.05 -0.29 -0.1 0.03 0.03 |   -3.2    4.1    0.1
igr  n/a|0.00 0.00-0.01 -0.22  0.19  0.00 -0.1 0.04 0.04 |    0.4   -1.4    0.4
jpl  42 |0.01 0.00 0.00 -0.42  0.22 -0.07  0.3 0.04 0.04 |   -7.5    0.6    0.4
ngs  70 |-.01 0.00 0.01  0.26 -0.50  0.61  0.1 0.08 0.08 |   -0.8   -1.4   77.5
sio  85 |-.01 0.00 0.02 -0.10 -0.19 -0.08  0.0 0.05 0.05 |    0.0    0.0    0.0

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 3.1044.0   GPS week: 1044   Day: 0   MJD: 51552.0

               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  |   3   6   4   2   4   3   9   4    2 |    5   8   6   5   6   4  11   6    5
   2  |   1   7   6   2   4   3   6   5    2 |    5  11   6   5   5   5   8   7    4
   3E |   3   7  10   2   5   3   8   5    2 |    8   7  10   8   8   8   7  10    7
   4  |   3   8   5   6   4   4   8   4    2 |    5   8   7   6   7   6  12   5    5
   5  |   2   8   5   3   4   4   9   7    2 |    6  10   7   6   6   5  11  10    6
   6E |   3   5   6   4   4   3   6   4    2 |    2   5   3   3   3   3   6   3    2
   7E |   4   5   6   4   4   3   7   5    2 |    4   6   7   4   6   3   7   4    4
   8  |   1   5   6   2   3   3   9   3    2 |    4   8   6   4   5   2   9   7    4
   9  |   2   6   6   3   5   2   9   5    2 |    8   9  10   8  10   8  11  11    8
  10  |   2   8  11   2   4   3   7   3    2 |    4  10  13   5   6   6   9   6    5
 X11  |   7   9   8   3   7 ---  18  13    4 |    6   8  10   6  11 ---  15  16    7
  13  |   2  10   5   3   4   5   7   5    2 |    5   9   8   6   7   6  10   7    6
 X14  |  10   6 --- ---  44   9  11 ---    5 |    7   6 --- ---  11   6   8 ---    4
 X15  |   5   8   9   3   7 ---  11   8    3 |    6   3   3   2   4 ---   9   2    6
 X16  |   2   8 ---   3   7   2   8   5    2 |   10   7 ---   5  19   6   8   4    8
  17  |   2   8   6   2   4   2   6   4    2 |    5  10   6   4   4   6   8   7    5
  18  |   2   5   6   2   5   3  11   4    2 |   15  10  14  12  15   5  15   7   15
  19  |   3   8   8   2   3   2   8   6    2 |    7   9  10   6   7   7  12   9    7
  21  |   3   8   9   2   6   3   7   4    2 |    5   9   9   4   6   6   7   8    5
  22  |   2   7   6   2   3   3  10   4    2 |    7  10   7   6   6   6  11   9    6
 X23  |   3   7 ---   3   5   3   8   9    2 |    2   5 ---   2   3   3   4   3    2
  24  |   4   7   6   2   7   3   6   4    2 |    8  12   9   8   9   9  12   8    8
  25  |   3   7   5   2   6   4   6   6    2 |    4  10   8   4   8   7  10   9    6
  26  |   2   6   4   2   6   2   7   4    1 |    9  10  10   8  10   7  13   8    8
  27  |   2   6   5   2   3   2   9   3    1 |    4   6   7   4   5   6  10   6    5
  29  |   3   6   4   3   5   2   5   4    1 |    6   7   7   4   7   5   6   5    5
  30  |   2   5   7   2   4   4  10   6    2 |    5   7   7   5   4   6   9   7    5
  31E |   4   8   9   3   6   4   8   5    2 |    8   7  10   9   8   8   8   7    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   7   7   3   5   3   8   5      |T   6   8   8   5   8   5   9   7    6
 WRMS |   2   7   6   3   4   3   8   5      |NE  6   8   8   5   8   6  10   7    6
 MEDI |   3   7   6   2   5   3   8   5      |MD  6   8   7   5   7   6   9   7    6

Table 3.1044.1   GPS week: 1044   Day: 1   MJD: 51553.0

               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   6   2   4   2   8   5    2 |    5   7   8   4   7   5  10   5    4
   2  |   2  10   6   2   2   3   6   6    2 |    4   9   5   4   4   5   7   4    4
   3E |   5   5  11   2   4   3   8   4    2 |    8   9  10   8  10   8   8  10    8
   4  |   3   8  11   2   3   2   7   3    2 |    4   8   6   5   3   4   7   3    3
   5  |   2   8   7   3   3   3  10   5    2 |    5   9  10   4   5   5  10   7    5
  X6E |   4   5 ---   3   2   2   8   5    2 |    2   5 ---   3   2   3   5   3    2
   7E |   4   7   8   2   4   3  10   4    2 |    3   7   7   5   6   4   8   4    4
  X8  |   1   7   8   3   3 ---   5   3    2 |    3   6   7   3   5 ---   4   5    3
   9  |   1   5   7   2   3   2  10   4    2 |    6   6   7   5   6   5   8   8    5
  10  |   3   8  13   2   2   2   5   3    2 |    3  10  14   3   5   5   7   3    4
 X11  |   7   9  10   5  10 ---  21  14    5 |    6  11  10   5  10 ---  15  16    7
  13  |   3   7   6   2   5   5   6   6    2 |    4   9   7   5   8   7   8   9    6
  14  |   5   7   8   2   3   3   6   4    2 |    6   3   2   2  10   3   6   3    4
 X15  |   7 --- --- ---  56 ---  19 ---   11 |   19 --- --- ---  14 ---  20 ---   18
  16  |   3   5   8   2   4   2   7   3    2 |    6   5   4   4  13   4   5   3    4
  17  |   2   5   8   3   3   2   7   3    1 |    4   5   5   4   4   4   6   4    3
  18  |   6   8   9   5   4   3   9   5    2 |   15  11  12  11  15   4  15   8   14
  19  |   3  10  11   3   4   3  10   4    2 |    4  10   9   4   5   5  10   5    4
  21  |   4   9   5   2   3   3  10   4    2 |    4   9   6   4   4   4  10   4    3
  22  |   2   7   6   2   3   3   8   3    2 |    4   8   6   3   4   4   8   4    3
  23  |   4   8  12   4   7   3   7   5    2 |    3   6   5   3   4   3   4   3    3
  24  |   4   8   8   2   2   3   7   4    2 |    6   8   7   5   4   6   8   5    5
  25  |   2   9   5   2   3   3   7   6    2 |    4   8   5   3   4   5   8   6    3
  26  |   2   8   4   3   4   3   5   4    2 |    7  10  11   7   9   7  10   7    7
  27  |   3   8   7   2   3   3   7   4    2 |    3   8   4   4   3   6   5   6    3
  29  |   5   6   6   3   3   2   8   5    2 |    6   7   7   4   5   4   7   3    4
  30  |   2   6   8   2   3   2   8   4    2 |    5   8   6   4   4   5   9   5    5
  31E |   3   9  11   2   5   3   9   5    2 |    8  12  10   8   9   7   9   7    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   7   8   3   4   3   8   4      |T   6   8   7   4   7   5   9   6    6
 WRMS |   3   7   7   3   3   3   8   4      |NE  7   8   7   4   7   4   9   6    6
 MEDI |   3   8   8   2   3   3   8   4      |MD  5   8   7   4   5   5   8   5    4

Table 3.1044.2   GPS week: 1044   Day: 2   MJD: 51554.0

               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  |   4   6  18   3   3   3  10   6    3 |    5   7  18   4   6   5  14   6    4
   2  |   3  12  10   2   4   5   7   3    2 |    4  10   6   5   5   5   8   5    4
   3E |   4   9   9   3   4   3   9   5    2 |    6  11   8   7   7   6   7   7    5
   4  |   3   5  10   2   3   3   9   4    2 |    4   6   5   4   4   4   9   3    3
   5  |   2   7   5   3   6   5  10   6    2 |    5   9   6   4   5   5   9   8    4
  X6E | --- ---   2 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
   7E |   3   9  13   3   3   3   9   4    2 |    3   8   6   4   4   4   8   5    3
  X8  |   3   9   6   2   3 ---   7   3    2 |    4   8   6   4   4 ---   7   5    3
   9  |   3  10   7   3   3   4  11   3    2 |    7  10  10   6   7   6  11  10    7
  10  |   2   8  10   3   4   4   8   3    2 |    4  10  12   4   5   6   8   5    4
 X11  |   7  14  20   6   7 ---  18  14    5 |    7  10  17   7   9 ---  12  13    6
  13  |   3   9   7   3   5   7   7   6    2 |    6  10  12   6   8   7  12   9    7
 X14  |  16 --- ---  12  66  15  15 ---    8 |   12 --- ---   5  15   5   7 ---    7
 X15  |   4  11  12   5   5 ---  10   7    3 |    7   5   5   3  12 ---   9   4    7
 X16  |   9 --- --- --- 121  15  17 ---    9 |   19 --- --- ---  57   5  22 ---   13
  17  |   2   8   5   3   4   4   5   5    2 |    5  10   6   5   4   6   6   5    4
 X18E |   6 ---  19   6  17 ---  13   5    4 |   15 ---  14  12  16 ---  17   8   15
  19  |   5   6   9   4   6   7   7   7    2 |    7  11  12   7   8  10  10   7    6
  21  |   3   9   8   2   3   3   6   4    2 |    4  12   9   4   4   5   9   6    4
  22  |   3   8   8   2   4   3  10   3    2 |    3   8   9   4   5   5  11   6    4
  23  |   5  10  16   4   4   5  10   7    3 |    4   4   7   4   4   4   6   4    3
  24  |   3  10  10   3   4   3   7   4    2 |    6  10   7   5   6   5   9   6    5
  25  |   3  12   7   2   4   3   7   4    2 |    4  11   8   4   5   6   9   6    4
  26  |   3   6   4   2   2   5   4   4    1 |    7   7   7   7   8   6   9   6    6
  27  |   3   7   7   3   3   6   8   3    2 |    4  10   7   3   4   7   7   5    3
  29  |   3   8   7   4   4   3   5   4    2 |    6   8   9   5   7   7   9   6    5
  30  |   2   9   7   2   3   3   8   3    2 |    4  10   8   4   5   5   8   6    4
  31E |   5  10  14   3   2   3   8   7    3 |    7   9  11   8   7   9   8   9    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   9  10   3   4   4   8   5      |T   7   9   9   5  13   5  10   6    6
 WRMS |   3   8   8   3   4   4   8   4      |NE  7   9   9   4  15   6  10   6    5
 MEDI |   3   9   9   3   4   4   8   4      |MD  5  10   8   5   6   5   9   6    4

Table 3.1044.3   GPS week: 1044   Day: 3   MJD: 51555.0

               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  |   3   7  13   2   5   2   9   4    2 |    5   9  12   5   8   6   9   6    5
   2  |   3   5   9   2   3   4   4   3    2 |    6   7   8   5   5   5   6   6    4
   3E |   3   5  12   2   3   3  10   4    2 |   10   8  13  10   9   7  11  10    9
   4  |   2  10  11   2   4   3   6   5    2 |    6  11  10   5   7   6  10   5    5
   5  |   2   6   5   2   2   3   7   5    2 |    6   8   7   5   5   6   9   8    5
  X6E |   2   7 ---   3   2   2   5   4    2 |    4   7 ---   2   2   4   5   5    3
   7E |   4   5  12   2   5   3  10   5    2 |    4   6   7   4   4   4   9   5    3
  X8  |   3   9   6   2   3 ---   8   4    2 |    5  10   7   5   5 ---   8   6    5
   9  |   3   5   8   3   3   8   9   4    2 |    7   7  10   8   8  10  11   9    7
  10  |   2   5  10   2   3   2   6   3    1 |    5   6  13   4   5   7   6   5    4
 X11  |   6  11  20   4   4 ---  15  15    5 |    6   8  13   5   7 ---  12  16    7
  13  |   4   8   7   2   4   7   8   7    2 |    6   9   8   7   9   8  13  11    7
 X14  |   7 --- --- ---  42   8   9 ---    6 |   10 --- --- ---  17   5   7 ---    5
 X15  |   4   6  14   3   3 ---   8   7    3 |    3   4   4   1   3 ---   4   2    3
  16  |   3   8  20   4   8   3   7   5    2 |   11   3   4   3  44   3  14   2    7
  17  |   2   6   6   2   3   2   6   3    1 |    5   8   5   6   6   6   7   5    5
 X18E |   4 --- --- --- 131 ---  12 ---    7 |   21 --- --- ---  69 ---  21 ---   20
  19  |   4   9   5   3   7   3   8   5    2 |    9   9   9   8  11   7  10   9    8
  21  |   3   6  11   3   6   3   5   6    2 |    5   7  12   6   6   6   7   8    5
  22  |   2   6   6   3   2   3   9   3    2 |    7  10   9   5   6   8  10   8    6
  23  |   3   7  15   3   6   3   5   6    2 |    3   5   6   4   4   4   4   5    3
  24  |   3   6  10   2   4   3   8   4    2 |   10  11  14   8   8  10  10   8    9
  25  |   2   9   7   2   2   2   5   5    2 |    5  11   7   6   6   7   8   8    6
  26  |   2   7   7   2   2   2   5   3    1 |    8  10  12   8   9   9  10   7    8
  27  |   3   7   4   2   4   3   7   4    2 |    5   9   6   4   5   6  10   6    5
  29E |   3   5   9   3   2   3   6   3    2 |    6   5   9   5   7   8   8   5    5
  30  |   1   6   8   1   2   3   5   3    1 |    5   9   7   5   4   6   7   7    5
  31E |   4   5  15   3   3   2   7   4    2 |    9   7  10   8   7   6   9   6    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   7  10   3   4   4   7   4      |T   7   8   9   5  16   6   9   7    6
 WRMS |   3   7   8   2   4   4   7   4      |NE  6   8   9   5  13   6   9   7    6
 MEDI |   3   6   9   2   3   3   7   4      |MD  6   8   9   5   7   6   9   6    5

Table 3.1044.4   GPS week: 1044   Day: 4   MJD: 51556.0

               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  |   4   6   5   4   5   3  10   5    2 |    4   5   7   3   5   4   6   3    3
   2  |   2   9   7   2   3   3   5   4    2 |    5  10   6   5   4   4   8   5    4
   3E |   3   7   7   3   3   2   9   3    2 |    8  11  11   8   9   8  11  12    9
   4  |   2   4   6   2   4   3   6   4    1 |    4   6   9   4   5   4   8   4    4
   5  |   2   5   3   2   4   4   9   5    2 |    5   7   7   5   4   5  11   8    5
   6E |   3   7   5   2   4   2   6   5    2 |    2   7   5   3   3   2   5   2    2
  X7E |   3   6 ---   2   4   4   6   6    2 |    3   7 ---   4   5   4   7   6    4
   8  |   2   8   5   2   3   2   8   5    2 |    4  11   5   4   5   3   7   5    4
   9  |   3   7   4   2   2   3   9   5    2 |    7  10   8   7   7   7  12  12    7
  10  |   3   6  10   2   3   2   6   3    2 |    5   9  13   5   6   5   7   6    4
 X11  |   6   9  11   5   6 ---  18  15    4 |    4   6  10   5   8 ---  14  14    5
  13E |   3   6   7   2   3   7  11   7    2 |    4   8   8   5   6   7  14   7    5
  14  |   4   6   8   3   4   3  10   5    2 |    5   5   2   1   8   4   7   2    4
 X15  |   4   6   7   2   5 ---   7   6    2 |    4   4   2   2   3 ---   6   2    4
 X16  |  17 --- --- --- 177  16  69 ---   16 |   22 --- --- ---  73   6  11 ---   12
  17  |   2   5   6   2   4   2   7   4    1 |    4   6   5   4   5   4   7   5    4
 X18E |   6  14  33   7  30 ---  13 ---    5 |   14  11  17  15  56 ---  14 ---   14
  19  |   3   8   6   3   4   2   8   5    2 |    8  11  10   9  11   8  12   9    8
  21  |   3   4   5   2   4   3   8   5    2 |    6   8   7   6   5   6   7   7    5
  22  |   3   8   5   2   3   2   7   3    2 |    7  11   7   6   6   6   7   9    6
  23  |   7   7  13   4   5   3   6   6    3 |    3   6   5   3   5   3   5   3    3
  24  |   3   7   5   2   4   3  11   6    2 |    6   9   8   4   5   5   7   6    5
  25  |   3   5   3   3   2   3   9   4    2 |    5   7   5   4   4   3   9   6    4
  26E |   2   5   5   3   5   3   6   4    1 |    7  10  10   9   9   7  10   7    8
  27  |   2   8   5   2   3   3   6   4    2 |    4  10   6   5   6   5   9   5    4
  29E |   4   5   4   3   3   3  11   5    2 |    3   4   5   5   4   5   7   4    3
  30  |   2   7   5   2   3   2   5   5    2 |    5   7   6   4   4   5   8   6    4
  31E |   4   6  14   3   4   3   7   4    2 |    8   8  12   8   7   8  10   8    8
------|--------------------------------------|--------------------------------------
 RMS  |   3   6   7   3   4   3   8   5      |T   7   8   8   5  18   5   9   6    6
 WRMS |   3   6   6   3   3   3   8   4      |NE  7   7   7   4  20   5   8   6    5
 MEDI |   3   6   6   2   4   3   8   5      |MD  5   8   7   5   5   5   8   6    4

Table 3.1044.5   GPS week: 1044   Day: 5   MJD: 51557.0

               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
------|--------------------------------------|--------------------------------------
   1E |   4   7  11   4   5   3   9   8    2 |    3   6   8   3   5   4   8   6    4
   2  |   3  11   7   2   2   2   6   4    2 |    5  10   5   4   5   4   7   4    4
   3E |   5   7  11   5   4   4  12   3    2 |    9   7  12   9  10   9   7   7    8
   4  |   3   5   5   2   2   3   7   4    2 |    4   5   7   5   4   5   8   5    4
   5  |   3   6   5   4   3   3  10   6    2 |    6   8   6   4   6   4  11   6    5
   6E |   3   6   4   3   3   2   6   4    1 |    2   8   5   3   4   3   6   3    3
  X7E |   4   8   7   3   3 ---   6   7    2 |    3   6   6   4   4 ---   8   5    4
   8  |   2   8   6   3   2   2  10   3    2 |    3   9   4   4   3   4   8   5    3
   9  |   2   5   5   2   3   3   8   4    1 |    5   5   6   5   7   5  11   8    6
  10  |   2   6  11   3   3   2   4   4    2 |    4   6  13   4   5   3   6   4    3
 X11  |   6  10  10   5   4 ---  17  12    4 |    6   9  10   5   6 ---  10  13    5
  13E |   3   8  12   2   4   4   7   8    2 |    5   8  11   5   6   4  10   7    5
 X14  |   8 --- --- ---  35   8  13   7    5 |    6 --- --- ---  10   6   8   9    5
 X15  |   4   7   5   5   5 ---  11   7    3 |    3   3   4   2   3 ---   5   2    3
 X16  |  17 --- ---  18  24  11  22 ---    9 |   15 --- ---   6  58   6  14 ---    8
  17  |   2   6   8   3   4   2   8   5    2 |    3   7   7   4   4   4   7   4    3
 X18E |   5  10  23   6   6 ---   7 ---    5 |   16   8  13  11  21 ---  16 ---   15
 X19  |   2   8   6   4   5 ---  11   3    2 |    8   9  11   7  10 ---  12   8    8
  21  |   3   5   5   3   3   3   6   7    2 |    5   5   7   4   5   4   6   7    4
  22  |   3   6   3   2   4   3   7   5    2 |    4   6   5   4   6   5   7   7    5
  23  |   3   8   8   4   6   3   8   6    2 |    2   6   6   3   3   3   4   3    2
  24  |   3   8   5   3   3   4  10   6    2 |    5   9   7   5   4   7   8   5    5
  25  |   3   6   3   3   5   2   8   5    2 |    3   7   7   4   6   4   7   7    3
  26E |   3   6   5   5   3   3   7   4    2 |    6   9   9   7   8   6   8   6    6
  27  |   2   9   5   2   3   2   8   3    2 |    3   9   4   3   4   2   9   4    3
  29E |   5   6   8   7   4   3   6   3    2 |    5   6   7   6   4   5   7   5    4
  30  |   2   7   5   2   2   1   6   3    1 |    5   8   7   5   5   4   8   4    5
  31E |   4   7   8   3   4   4   9   5    2 |    8   7  13   9   9   8   9   5    8
------|--------------------------------------|--------------------------------------
 RMS  |   3   7   7   3   4   3   8   5      |T   6   7   8   5  13   5   8   6    5
 WRMS |   3   7   6   3   3   3   8   5      |NE  6   7   7   4  16   4   8   6    4
 MEDI |   3   7   6   3   4   3   8   5      |MD  5   7   7   4   5   4   8   5    5

Table 3.1044.6   GPS week: 1044   Day: 6   MJD: 51558.0

               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
------|--------------------------------------|--------------------------------------
   1E |   4   7  11   3   7   3   6   5    2 |    4   4  11   4   5   5   4   5    3
   2  |   3  12   6   2   3   3   7   4    2 |    7  11   9   6   5   7   7   8    6
   3  |   5   8   6   4   6   3  11   4    2 |    9  11  13   9  10  10  13  11    9
   4  |   3  10   6   2   6   3   5   3    2 |    5   8   5   5   5   6   8   6    4
   5  |   2   7   6   3   4   5   7   6    2 |    8   8   9   7   7   7  10  10    6
   6E |   3   8   4   4   4   3   6   4    2 |    4   5   4   6   6   3   6   4    3
   7E |   3   7   9   5   3   4   8   6    2 |    4   7   6   6   5   6   4   5    5
  X8  |   2   7   4   2   3 ---   9   5    2 |    6  10   6   7   6 ---  10   7    6
   9  |   2   5   5   2   3   5   7   5    2 |    8   9   9   9  10  10  13  10    9
  10  |   2   6  11   2   2   3   7   4    2 |    6  11  13   5   6   7   8   7    6
 X11  |   5  11  11   4   6 ---  16  12    4 |    4   6  11   4   5 ---   7  11    5
  13E |   4   9  12   2   6   5   7   6    2 |    5   9  12   6  11   8  13   9    7
 X14  |   3   7 ---   4   4   4   6   6    2 |    4   4 ---   3   5   4   5   4    3
 X15  |   4   7  10   3   3 ---   9   7    3 |    4   3   4   2   4 ---   4   3    3
  16  |   6   7  11   9   4   4   7   4    3 |    8   4   2   4  13   5   8   4    6
  17  |   2   8   8   3   3   5   8   4    2 |    6   9   9   6   6   8   9   7    6
  18E |   3  10  19   3   7   5   5   5    3 |   10   8  11   8  11   6  11   7   10
  19  |   3   8   5   3   4   3   8   4    2 |    9  10  11   8  10   8  14   8    9
  21  |   3   6   9   2   2   2   7   4    2 |    8   8  12   7   7   8   6  10    7
  22  |   3   6   7   3   3   3   8   4    2 |    8   8  10   6   7   9   8   9    7
  23  |   4  10   8   3   6   3  11   5    2 |    4   5   4   3   2   4   3   3    3
  24  |   3   7   5   4   3   3   7   5    2 |    7   9   6   5   6   8   9   7    6
  25  |   2   9  10   2   3   3   8   5    2 |    6  10   6   6   7   7   9   7    6
  26E |   4   5   4   4   3   6   6   5    2 |    7   7   9   8   8   6  10   7    7
  27  |   2   9   5   1   4   3   7   3    2 |    7  11   6   6   8   8  12   8    7
  29E |   3   7   7   4   3   4   7   4    2 |    4   5   4   4   3   3   6   4    3
  30  |   2   7   6   2   3   2   6   3    1 |    8   8   8   8   7   7   7   8    7
  31E |   3   8   8   4   4   4   9   5    2 |    8  10  11   9   9   8   9   7    8
------|--------------------------------------|--------------------------------------
 RMS  |   3   8   9   3   4   4   8   5      |T   6   8   8   6   7   6   8   7    6
 WRMS |   3   8   7   3   4   4   8   5      |NE  6   8   8   5   7   7   8   7    6
 MEDI |   3   7   7   3   4   3   7   5      |MD  7   8   9   6   7   7   8   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 4.1044   GPS week: 1044   MJD: 51552.0-51558.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2672 |U   8   12   17 |U   7   11   21 |U   6    7   13 |
emr | emr 2504 |    7    7   10 |    6    8   11 |U   2    2    4 |
esa | esa 2219 |    7    6    7 |U  11   10   21 |    3    4    5 |
gfz | gfz 2554 |    5    4   14 |U   3    5    6 |    2    2    4 |
igc | igc 2632 |    7    7   10 |    3    4    7 |    2    3    5 |
igr | igr 2661 |    6    9   11 |    3    4    7 |    2    3    4 |
igs | igs 2679 |    6    7    9 |    3    4    7 |    2    3    4 |
jpl | jpl 2326 |    6    8   10 |U   5    6   12 |    3    3    5 |


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 5.1044.0   GPS week: 1044   Day: 0   MJD: 51552.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2688 |    8   15   22 |    0    0    0 |    5    5   11 |
emr | emr 2575 |   14   16   21 |    0    0    0 |    2    3    5 |
gfz | gfz 2576 |    4    6   31 |    0    0    0 |    2    1    3 |
igc | igc 2685 |   13   15   18 |    0    0    0 |    2    3    5 |
igr | igr 2675 |    9   19   22 |    0    0    0 |    2    3    5 |
igs | igs 2688 |   11   18   18 |    0    0    0 |    2    3    5 |
jpl | jpl 2480 |   10   11   17 |    0    0    0 |    1    2    3 |

Table 5.1044.1   GPS week: 1044   Day: 1   MJD: 51553.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2687 |    7   11   14 |    7   11   27 |    4    7   11 |
emr | emr 2575 |    2    2    5 |    2    3    6 |    2    2    2 |
esa | esa 2378 |    9    6    7 |    5    5   10 |    2    2    3 |
gfz | gfz 2575 |    1    2    5 |    2    2    4 |    2    1    2 |
igc | igc 2589 |    2    2    5 |    2    3    5 |    2    2    4 |
igr | igr 2680 |    2    7    9 |    2    3    7 |    2    2    2 |
igs | igs 2687 |    2    2    5 |    2    3    7 |    2    3    3 |
jpl | jpl 2382 |    2    2    5 |    2    2    5 |    2    2    3 |

Table 5.1044.2   GPS week: 1044   Day: 2   MJD: 51554.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2592 |    7   13   15 |    7   10   24 |    9    9   19 |
emr | emr 2292 |    2    2    4 |    8   16   18 |    2    4    6 |
esa | esa 2050 |    5    3    7 |   18   15   24 |    4    4    7 |
gfz | gfz 2484 |    2    1    4 |    3    2    5 |    2    4    6 |
igc | igc 2583 |    2    3    4 |    3    3   10 |    2    4    6 |
igr | igr 2586 |    3    4    7 |    2    3    3 |    2    5    7 |
igs | igs 2639 |    2    2    4 |    2    2    5 |    2    4    6 |
jpl | jpl 2196 |    2    1    4 |    4    3    8 |    4    4    6 |

Table 5.1044.3   GPS week: 1044   Day: 3   MJD: 51555.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2677 |    6    8   12 |    6   14   24 |    6    7   16 |
emr | emr 2469 |    2    2    3 |    3    4    7 |    2    2    2 |
esa | esa 2175 |    3    2    4 |    8   11   10 |    6    6    9 |
gfz | gfz 2467 |    2    2    3 |    2    3    7 |    2    2    2 |
igc | igc 2561 |    3    3    6 |    2    5    7 |    2    2    6 |
igr | igr 2669 |    3    2    5 |    3    4    9 |    3    3    5 |
igs | igs 2677 |    2    2    4 |    4    7   12 |    3    2    4 |
jpl | jpl 2274 |    2    3    4 |    2    3    6 |    2    2    4 |

Table 5.1044.4   GPS week: 1044   Day: 4   MJD: 51556.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2687 |    5    9   10 |    5    7   18 |    6    6   12 |
emr | emr 2475 |    2    2    4 |    8    3   13 |    3    2    4 |
esa | esa 2097 |    5    2    4 |   13   10   37 |    2    3    5 |
gfz | gfz 2564 |    2    1    5 |    2    2    5 |    3    3    6 |
igc | igc 2669 |    3    7    5 |    3    5    7 |    2    3    6 |
igr | igr 2675 |    4    4    5 |    3    4    5 |    3    3    4 |
igs | igs 2687 |    3    3    5 |    2    2    5 |    3    3    4 |
jpl | jpl 2378 |    2    2    5 |    4    8   15 |    3    2    6 |

Table 5.1044.5   GPS week: 1044   Day: 5   MJD: 51557.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2687 |    8   14   18 |    8   13   13 |    6    6   11 |
emr | emr 2473 |    3    3    7 |    5    6    8 |    3    1    4 |
esa | esa 2253 |    3    5    4 |    3    6    8 |    2    2    3 |
gfz | gfz 2557 |    3    3    8 |    3   11    6 |    2    1    4 |
igc | igc 2648 |    3    4    8 |    5    5    7 |    2    3    6 |
igr | igr 2671 |    4    2    6 |    4    4    9 |    2    2    3 |
igs | igs 2687 |    3    2    6 |    3    4    5 |    2    2    4 |
jpl | jpl 2192 |    4    6   12 |    7   10   19 |    2    2    4 |

Table 5.1044.6   GPS week: 1044   Day: 6   MJD: 51558.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2688 |   10   10   23 |    7   12   19 |    5    7   10 |
emr | emr 2669 |    9    7   11 |    4    7    9 |    2    1    3 |
esa | esa 2358 |   12   11   13 |   10    7   20 |    2    2    3 |
gfz | gfz 2654 |   11    6   16 |    2    3    7 |    2    1    3 |
igc | igc 2686 |   11    9   14 |    3    4    5 |    2    1    3 |
igr | igr 2674 |   11    9   11 |    2    7    7 |    2    1    3 |
igs | igs 2688 |   10    7   11 |    3    4    8 |    2    1    3 |
jpl | jpl 2382 |   11    8    8 |    5    6   11 |    2    2    5 |

                                                                               
Table 6: Earth Orientation Parameters weekly summary.                          
                                                                               
         Weekly mean and standard deviation of Centre ERP, ERP rates and       
         LOD differences with respect to IGS combined values. See Table 7 for  
         the daily summaries.                                                  
                                                                               
         Xpole,Xrt: x pole and x pole rate (10**-5")                           
         Ypole,Yrt: y pole and y pole rate (10**-5"/day)                       
         LOD: Length Of Day (us)                                               
                                                                               
         AC LOD BIAS: 21-day mean LOD bias with respect to Bulletin A (us)     
         AC LOD BIAS RMS: RMS of AC LOD BIAS (us)                              
                                                                               
         FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
               for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1044   GPS week: 1044   MJD: 51552.5-51558.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -7     -9     -3    -10    -18 |      -9     32
            |      4      3     17     19     19 |       4
emr   uuuuu |     34     -3    -14     50    -21 |     -12     32
            |     10     12     29     42     21 |       7
esa   uuuuu |     -1     -3     -7    -21      7 |      12     27
            |     11     13     18     48     15 |       2
gfz   uuuuu |     -2      0     -2    -10      3 |     -16     29
            |      4      4     10      9     11 |       3
igr   xxxxx |      1      9     11     -8     18 |      -2     23
            |     12     16     26     16     11 |       2
jpl   uuuuu |    -17     11      4      1     -2 |      -5     33
            |      5      9     15     17     26 |       2
ngs   uuuuu |     52     -4     28     66     28 |    -112    124
            |     14     14     42     24     31 |       7
sio   uuuuu |     -3      5      0    -12     19 |      -8     26
            |      3      3      9     13     15 |       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 7.1044.0   GPS week: 1044   Day: 0   MJD: 51552.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -2     -7     -3    -29    -25 |      -4     31
emr   uuuuu |     27      1    -12     58    -49 |      -2     32
esa   uuuuu |     -4     -6    -13    -42      0 |       9     27
gfz   uuuuu |      4     -3      2     -1     -1 |     -13     30
igr   xxxxx |    -17     -6      0    -33     25 |      -4     23
jpl   uuuuu |    -19      4     -4     15     12 |      -4     31
ngs   uuuuu |     39     13     45     72     78 |    -121    131
sio   uuuuu |     -6     10      2     -8     45 |     -14     27

Table 7.1044.1   GPS week: 1044   Day: 1   MJD: 51553.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -6     -7      3     15    -34 |      -5     32
emr   uuuuu |     41     -6     47    -37    -18 |      -6     33
esa   uuuuu |     -1     -8     30     23     14 |      10     26
gfz   uuuuu |     -4     -2    -15    -11      9 |     -13     30
igr   xxxxx |      7    -14     22     -2     16 |      -3     23
jpl   uuuuu |    -13      6    -15      2    -23 |      -3     31
ngs   uuuuu |     44     13      3     63     15 |    -117    129
sio   uuuuu |     -1      4     11    -22     29 |     -11     26

Table 7.1044.2   GPS week: 1044   Day: 2   MJD: 51554.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -10     -3    -24    -29    -43 |      -7     32
emr   uuuuu |     50    -17    -28     61     -6 |      -8     32
esa   uuuuu |     19     10     -3     -9      5 |      11     27
gfz   uuuuu |     -7      3     13     -6    -11 |     -14     29
igr   xxxxx |      2     17     18     -5     15 |      -2     24
jpl   uuuuu |    -21      2     -4     20     36 |      -5     31
ngs   uuuuu |     50     -8     63     34     53 |    -117    129
sio   uuuuu |      2      3      0     -7     11 |      -8     27

Table 7.1044.3   GPS week: 1044   Day: 3   MJD: 51555.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12     -9     24    -10    -27 |     -10     32
emr   uuuuu |     32    -16    -21     94    -45 |     -10     32
esa   uuuuu |      4     11    -22    -18     32 |      13     28
gfz   uuuuu |     -2      0     -4    -27     -3 |     -16     29
igr   xxxxx |      9     11     20    -26     -4 |       0     24
jpl   uuuuu |    -23     10     -5     -6      8 |      -4     32
ngs   uuuuu |     69     -6      3     62     33 |    -114    127
sio   uuuuu |     -2      9     -9     -6     17 |      -7     27

Table 7.1044.4   GPS week: 1044   Day: 4   MJD: 51556.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -5    -12    -25    -15     -5 |     -12     33
emr   uuuuu |     29     -2    -46     67    -26 |     -15     32
esa   uuuuu |     -1    -11     -2    -43     15 |      14     28
gfz   uuuuu |     -3     -3     -3     -1     23 |     -18     28
igr   xxxxx |     13      7     45      0     33 |      -3     22
jpl   uuuuu |    -20     18     18     -6    -47 |      -5     32
ngs   uuuuu |     72     -2     68    109     -9 |    -109    122
sio   uuuuu |     -3      1     12    -30     22 |      -7     27

Table 7.1044.5   GPS week: 1044   Day: 5   MJD: 51557.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -7    -12      0    -17     -4 |     -13     33
emr   uuuuu |     22      0     -9     40      9 |     -20     33
esa   uuuuu |     -4      6    -24     44     -5 |      14     28
gfz   uuuuu |     -2      7    -11     -9     -2 |     -19     28
igr   xxxxx |      5     16      8     14     23 |      -2     22
jpl   uuuuu |    -10      7      9    -30     -1 |      -8     35
ngs   uuuuu |     50    -19     59     75     31 |    -106    118
sio   uuuuu |     -2      4     -9      8      2 |      -6     27

Table 7.1044.6   GPS week: 1044   Day: 6   MJD: 51558.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -3    -11      0     17     10 |     -12     32
emr   uuuuu |     39     19    -29     70    -15 |     -21     33
esa   uuuuu |    -18    -23    -11   -104    -12 |      14     28
gfz   uuuuu |      2     -5      8    -18      4 |     -19     28
igr   xxxxx |    -16     33    -38     -7     16 |       1     20
jpl   uuuuu |    -15     27     28     10      2 |      -7     35
ngs   uuuuu |     37    -22    -43     44     -7 |    -100    110
sio   uuuuu |     -8      2     -9    -22      7 |      -3     23



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