Subject: [IGSREPORT-6936] Wk 1048 IGS Final Orbits
From: [email-masked]
To: [email-masked] (IGS Report Mailbox), [email-masked] (Tim Springer), [email-masked] (Heike Bock), [email-masked] (Rolf Dach)
Date: Fri, 25 Feb 2000 14:54:08 +0100 (MET)

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IGS Electronic Report   25 Feb 05:54:19 PST 2000      Message Number 6936
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Author:  AC Coordinator / AIUB/CODE

Final IGS Orbit Combination - Week 1048   (Feb 06, 2000 - Feb 12, 2000)

Contacts: T.A. Springer ([email-masked]),
          H. Bock ([email-masked]), R. Dach ([email-masked])

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS10487.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:

 IGS10480-6.SP3  IGS GPS ephemeris files for days 0-6, week 1048 in SP3 format.
 IGS10487.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS10487.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
                  ----+--------+---------------
                   2  |  GFZ   |  2

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
                  ----+--------+---------------
                   0-6|  NGS   |  ALL
                   3  |  ESA   |  19
                   4  |  EMR   |  15

     NOTE: NGS excluded on all days due to large orbit Y-rotation which 
           could not be corrected using SINEX. 

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 19 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 (IGS10487.SUM).

Table 1: Week 1048 summary.                       (Feb 06, 2000 - Feb 12, 2000)

Table 1.1048.a   GPS week: 1048   MJD: 51580.0-51586.0

         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  117|0.00 0.00-0.01  0.03  0.09  0.12 -0.3 0.03 0.03 |    0.2    0.6    0.4
        |0.00 0.00 0.00  0.07  0.04  0.08  0.1           |    6.1   10.5
emr  33 |0.00 0.00-0.03 -0.04 -0.05  0.14  0.3 0.08 0.08 | -769.6  -23.1    0.4
        |0.01 0.03 0.03  0.07  0.07  0.14  0.2           | 1922.1   11.8
esa  55 |0.00 0.00 0.00 -0.07  0.07 -0.10  0.2 0.09 0.08 |-1886.6  -31.5    0.4
        |0.00 0.01 0.01  0.12  0.10  0.10  0.1           |   71.0   10.3
gfz  53 |0.00 0.00 0.00 -0.01 -0.03  0.02 -0.2 0.03 0.03 |    0.4    0.5    0.3
        |0.00 0.00 0.00  0.05  0.04  0.10  0.0           |    3.8    8.7
igr  n/a|0.00 0.00 0.01 -0.08  0.15 -0.06  0.1 0.04 0.04 |    0.4   -0.5    0.4
        |0.00 0.01 0.01  0.07  0.05  0.13  0.0           |    0.6    1.2
jpl  42 |0.00 0.00 0.01  0.03 -0.09 -0.13  0.4 0.04 0.04 |    2.7   -1.6    0.4
        |0.01 0.01 0.01  0.12  0.13  0.16  0.1           |    5.1   11.4
ngs  70 |-.01 0.01 0.06  0.04 -0.55  0.13  0.2 0.10 0.10 |    0.5   -0.3   80.1
        |0.01 0.00 0.01  0.25  0.12  0.34  0.1           |    1.4    1.6
sio  92 |-.01 0.00 0.02 -0.05  0.02 -0.16 -0.1 0.06 0.05 |    0.0    0.0    0.0
        |0.01 0.01 0.00  0.06  0.08  0.19  0.1           |    0.0    0.0

Table 1.1048.b   GPS week : 1048   MJD: 51580.0-51586.0

         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   2   2   2   2   2 |
   2  |   2   2   2   2   2   2   2 |
   3  |   2   2   2   2   2   2   2 |
   4  |   1   2   2   2   1   2   1 |
   5  |   2   2   2   2   1   2   2 |
   6  |   2   2   3   2   2   1   1 |
   7  |   2   2   2   2   2   2   2 |
   8  |   2   2   2   2   1   1   1 |
   9  |   1   2   2   2   2   2   2 |
  10  |   3   2   3   2   2   2   2 |
  11E |   3   3   3   3   3   3   3 |
  13E |   2   3   3   3   2   3   2 |
  14  |   4   2   8   3   3   6   4 |
  15  |   3   2   2   3  10   3   0 |
  16  |   2   3   2   2   3   3   6 |
  17  |   2   2   2   2   1   2   2 |
  18E |   4   7   6   3   3   4   3 |
  19  |   2   2   5   3   1   2   2 |
  21  |   2   2   2   2   2   1   2 |
  22  |   2   1   2   2   2   2   2 |
  23  |   3   3   3   3   3   2   3 |
  24  |   2   2   2   2   2   2   1 |
  25  |   2   2   2   2   2   2   2 |
  26E |   3   3   3   2   2   2   2 |
  27  |   2   2   2   2   1   1   2 |
  29E |   3   2   2   2   2   2   2 |
  30  |   5   2   1   2   1   2   2 |
  31  |   2   2   2   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 2.1048.0   GPS week: 1048   Day: 0   MJD: 51580.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.01  0.13  0.00  0.18 -0.2 0.03 0.03 |    2.6   -5.3    0.4
emr  31 |0.00-0.03-0.03  0.05  0.01  0.33  0.6 0.09 0.08 |-1799.0  -42.8    0.4
esa  55 |0.00 0.00 0.01 -0.02  0.05 -0.07  0.3 0.10 0.07 |-1788.0  -42.5    0.4
gfz  54 |0.00 0.00 0.00  0.05 -0.07  0.02 -0.1 0.03 0.03 |    5.8  -10.1    0.1
igr  n/a|0.00 0.00 0.00 -0.02  0.08 -0.14  0.1 0.04 0.04 |    1.0   -1.6    0.3
jpl  41 |-.01 0.00 0.02 -0.22  0.12 -0.42  0.4 0.08 0.07 |   12.4  -21.3    0.3
ngs  70 |-.01 0.00 0.05 -0.13 -0.60 -0.16  0.1 0.09 0.09 |    1.2    2.1   79.9
sio  92 |0.00 0.01 0.02 -0.10  0.00 -0.09 -0.2 0.05 0.04 |    0.0    0.0    0.0

Table 2.1048.1   GPS week: 1048   Day: 1   MJD: 51581.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.01  0.06  0.10  0.17 -0.2 0.03 0.03 |   11.7  -17.8    0.3
emr  33 |0.01 0.02-0.06 -0.16 -0.09  0.05  0.2 0.08 0.08 | 2050.0  -10.7    0.4
esa  55 |0.00 0.00 0.02 -0.07  0.17 -0.06  0.3 0.09 0.07 |-1815.0  -41.5    0.4
gfz  56 |0.00 0.00 0.00 -0.03  0.01 -0.03 -0.2 0.03 0.03 |    4.9   -8.7    0.1
igr  n/a|0.00 0.00 0.00 -0.01  0.19  0.01  0.1 0.04 0.04 |    0.1   -0.2    0.3
jpl  42 |0.00 0.00 0.02  0.06 -0.21 -0.16  0.3 0.04 0.03 |    4.3   -2.8    0.6
ngs  70 |0.00 0.01 0.06 -0.27 -0.41 -0.26  0.1 0.10 0.10 |    0.7   -2.0   79.1
sio  91 |-.01 0.00 0.02 -0.08  0.03  0.00 -0.1 0.06 0.05 |    0.0    0.0    0.0

Table 2.1048.2   GPS week: 1048   Day: 2   MJD: 51582.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.02  0.05  0.11  0.01 -0.4 0.03 0.03 |   -1.0    8.7    0.4
emr  33 |-.02 0.03-0.03 -0.03 -0.01  0.07  0.2 0.08 0.08 |-1872.0  -16.3    0.4
esa  55 |0.00-0.02-0.01 -0.25 -0.05 -0.01  0.1 0.08 0.06 |-1857.9  -16.1    0.4
gfz  54 |-.01 0.00 0.00  0.02 -0.05 -0.13 -0.1 0.03 0.03 |   -4.0   11.8    0.6
igr  n/a|-.01-0.01 0.00 -0.17  0.17 -0.20  0.0 0.04 0.03 |    1.5   -2.4    0.2
jpl  42 |0.02 0.01 0.02  0.00 -0.11  0.10  0.4 0.03 0.03 |    3.2    1.3    0.3
ngs  70 |-.02 0.00 0.05 -0.10 -0.41 -0.23  0.3 0.09 0.09 |   -0.6   -2.0   79.0
sio  94 |-.01 0.00 0.01  0.00  0.11  0.02  0.0 0.07 0.05 |    0.0    0.0    0.0

Table 2.1048.3   GPS week: 1048   Day: 3   MJD: 51583.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.01 -0.02  0.09  0.01 -0.2 0.03 0.03 |    0.5   -1.7    0.5
emr  33 |-.01-0.02-0.03 -0.03 -0.07  0.25  0.2 0.08 0.07 |-1901.0  -29.2    0.4
esa  55 |0.00 0.00 0.00  0.11  0.22 -0.20  0.3 0.11 0.12 |-1883.9  -29.2    0.3
gfz  55 |0.00 0.01 0.01  0.04 -0.05 -0.02 -0.1 0.03 0.03 |   -0.3   -0.8    0.1
igr  n/a|0.00 0.01 0.01 -0.13  0.14 -0.05  0.1 0.04 0.03 |    0.3   -0.6    0.3
jpl  42 |0.00-0.01-0.01  0.13 -0.23 -0.05  0.3 0.05 0.04 |   -0.5    1.9    0.3
ngs  70 |-.01 0.01 0.07 -0.05 -0.49  0.23  0.2 0.10 0.10 |   -0.8   -0.6   79.8
sio  94 |-.01 0.01 0.02 -0.16  0.08  0.01 -0.1 0.06 0.04 |    0.0    0.0    0.0

Table 2.1048.4   GPS week: 1048   Day: 4   MJD: 51584.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.01 -0.06  0.11  0.14 -0.3 0.03 0.03 |   -6.2    6.3    0.4
emr  33 |-.01-0.01-0.02  0.03  0.04  0.24  0.3 0.08 0.09 |-1931.0  -30.4    0.3
esa  55 |0.01 0.00-0.01 -0.05  0.08 -0.03  0.2 0.08 0.06 |-1932.0  -28.7    0.4
gfz  52 |0.00 0.00 0.00 -0.01  0.00  0.01 -0.2 0.02 0.02 |   -1.7    1.6    0.1
igr  n/a|-.01 0.00 0.01 -0.17  0.14 -0.19  0.1 0.03 0.03 |    0.4   -0.2    0.5
jpl  42 |0.00 0.00 0.01  0.13 -0.15 -0.03  0.4 0.03 0.03 |    0.3   -9.1    0.3
ngs  70 |-.01 0.01 0.06  0.08 -0.67  0.29  0.2 0.11 0.11 |    3.1   -1.1   80.1
sio  90 |0.00 0.00 0.02 -0.03  0.09 -0.35  0.0 0.06 0.05 |    0.0    0.0    0.0

Table 2.1048.5   GPS week: 1048   Day: 5   MJD: 51585.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|0.00 0.00-0.01 -0.05  0.07  0.17 -0.3 0.02 0.02 |   -6.4   14.3    0.4
emr  32 |0.00 0.02 0.02 -0.01 -0.17 -0.06  0.5 0.08 0.08 |-1970.0  -21.9    0.4
esa  55 |0.01 0.00-0.01  0.00 -0.06 -0.06  0.2 0.08 0.07 |-1951.0  -21.9    0.3
gfz  50 |0.00 0.00 0.00 -0.08 -0.06  0.17 -0.2 0.03 0.03 |   -2.9   11.4    0.2
igr  n/a|0.00 0.01 0.01 -0.06  0.10  0.05  0.1 0.04 0.04 |   -0.1    0.2    0.7
jpl  42 |0.00-0.01 0.01  0.09  0.02 -0.19  0.4 0.03 0.03 |   -4.1   15.6    0.3
ngs  70 |0.00 0.00 0.05  0.31 -0.68  0.56  0.2 0.08 0.08 |    0.8    1.4   81.6
sio  89 |0.00-0.01 0.01  0.02 -0.03 -0.33  0.1 0.05 0.04 |    0.0    0.0    0.0

Table 2.1048.6   GPS week: 1048   Day: 6   MJD: 51586.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  117|-.01 0.00-0.01  0.08  0.12  0.16 -0.3 0.03 0.03 |    0.3   -0.2    0.4
emr  33 |0.00 0.02-0.06 -0.10 -0.07  0.12  0.4 0.07 0.07 | 2036.0  -10.4    0.4
esa  55 |0.00-0.01 0.01 -0.17  0.11 -0.27  0.2 0.08 0.07 |-1978.0  -40.3    0.3
gfz  52 |-.01 0.01 0.00 -0.06  0.01  0.14 -0.2 0.03 0.03 |    1.3   -1.5    0.2
igr  n/a|-.01 0.00 0.01 -0.02  0.19  0.13  0.0 0.04 0.04 |   -0.1    1.1    0.4
jpl  42 |0.02-0.01 0.01 -0.01 -0.07 -0.12  0.4 0.03 0.03 |    3.2    3.2    0.3
ngs  70 |-.01 0.01 0.06  0.43 -0.62  0.46  0.5 0.10 0.10 |   -0.7    0.1   81.4
sio  92 |-.01 0.00 0.03 -0.01 -0.13 -0.40 -0.1 0.06 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 3.1048.0   GPS week: 1048   Day: 0   MJD: 51580.0

               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   6  11   2   5   5   6   6    2 |    8  10  11   8  10   8   9  10    9
   2  |   2   9   7   2   4   4   9   4    2 |    3  10   6   4   6   6   6   5    6
   3  |   3   7   6   4   3   4   9   4    2 |    4   8   9   4   7   5   9   6    8
   4  |   2   6   5   2   6   4   7   4    1 |    4  10   5   4   6   8  10   5    7
   5  |   3  11   6   3   3   6  10   3    2 |    5  12   8   5   9  11  11   7    8
   6  |   3   8   7   3   4   8   9   5    2 |    4   9   7   4   7  12  11   6    7
   7  |   4   6  14   2   3   3   7   5    2 |    4  11  12   5   6   9  10  10    9
   8  |   2  11   7   2   3   6   8   3    2 |    4  12   5   3   5   5   7   5    5
   9  |   2   8   5   2   4   3  11   3    1 |    4  10   7   4   7   6   9   5    6
 X10  |   2   7  14   3   4 ---   7   5    3 |    4  11  14   5   9 ---  10   7    8
  11  |   4   8   7   4   6   8  17  14    3 |    4  10   9   5   7   6  13  14    7
  13E |   2  11   8   2   5   8   8   5    2 |    3  12  10   4   6   5   8   7    7
  14  |   3   9  29   5   5   4  10   4    4 |    4   7  13   5   6   5   6   4    5
 X15  |   4   7   8   3   6 ---  13   7    3 |    5   6   3   3   9 ---   9   5    5
 X16  |   3   9 ---   2   9   3  11   4    2 |    9  16 ---   9  11  11  14  10   11
  17  |   2  11   3   3   3   5  10   3    2 |    5  10   5   7   6   5  10   5    6
 X18E |   4  14  17   4   8 ---   9   6    4 |   20  25  24  17  20 ---  18  19   22
  19  |   3   8   7   3   3   3   7   3    2 |   12  15   7   3  14  12  12  13   13
  21  |   3   8   6   2   3   3   9   6    2 |    5  10   9   6   8   7   9   8    8
  22  |   3  10   6   2   3   3   6   5    2 |    5  11   7   5   6   6   9   7    8
 X23  |   5  13 ---   5  11   5  10   7    3 |    3   7 ---   3   4   4   5   4    4
  24  |   2   8   5   3   7   4   6   5    2 |    4  11   6   4   7   7   8   4    5
  25  |   2   9   6   3   2   5   7   4    2 |    4   8   7   3   6   5   7   5    5
  26E |   3   8  16   5   6   6   8   3    3 |   10  14  23  15  17  15  19  14   14
  27  |   2   8   6   2   3   5   9   3    2 |    4  11   6   4   6   6   8   4    6
  29E |   2   7  19   5   5   5  11   5    3 |   10  12  16   7   9  12  11  12   10
  30  |   4   9   9   4   5  27   8   5    5 |    7  11   9   5   7  21  11   8    9
  31  |   3   8   5   3   4   4   9   3    2 |    5  10   8   6   8   5  10   7    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   9  10   3   4   8   9   5      |T   6  11  10   6   8   8  10   8    8
 WRMS |   3   8   7   3   4   7   9   4      |NE  5  10   8   5   7   8   9   7    7
 MEDI |   3   8   7   3   4   5   9   5      |MD  4  11   8   5   7   6  10   7    7

Table 3.1048.1   GPS week: 1048   Day: 1   MJD: 51581.0

               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
------|--------------------------------------|--------------------------------------
  X1E |   2   7 ---   3   4   3  12   7    2 |    5   9 ---   5   6   6  10   8    5
   2  |   2   8   7   2   3   1  10   6    2 |    4   8   7   4   5   3   9   5    3
   3  |   2   7   8   3   5   2   9   4    2 |    4   8   8   3   4   3   7   5    4
   4  |   3  10   8   2   4   4   8   5    2 |    3  13   6   5   7   8   7   8    6
   5  |   2   7   5   3   2   3   8   4    2 |    4   9   5   4   5   5   9   3    4
  X6  |   2   7 ---   2   3   2  10   5    2 |    3  10 ---   4   3   4   9   5    3
   7  |   3   9   8   4   3   2  11   6    2 |    3   8   7   3   5   4   9   5    3
   8  |   3   7   8   3   3   7   9   4    2 |    5   9   6   4   5   8   8   4    4
   9  |   2   7   7   2   3   2   8   4    2 |    3   8   6   5   5   5   8   4    5
  10  |   2   8  12   2   3   3   7   6    2 |    3   9  11   4   6   4  10   6    4
  11  |   4   8   6   4   3   6  18  16    3 |    5   9  10   5   7   5  12  14    5
  13E |   4   9   9   4   5   7  10   5    3 |    3  10   9   4   6   4   8   5    3
  14  |   2  12  10   3   5   2  14   4    2 |    9   9   5   9   9   7  10   7    8
 X15  |   4   7   9   3   5 ---  11   5    2 |    7   5   3   4  11 ---  11   6    6
  16  |   3   9  18   5   7   3  11   6    3 |    6   8  12   6   7   7   9   6    6
  17  |   3   7   7   6   4   3   9   5    2 |    4  10   7  10   6   4   9   4    5
 X18E |   4  16  23 ---  24 ---  23  10    7 |   16  11  31 ---  17 ---  12  16   16
 X19  |   3   7 ---   3   4   4   9   6    2 |   10  10 ---   3  14  11  13  13   11
  21  |   3   7   9   2   4   2   8   4    2 |    4   8   7   4   6   4   9   5    4
  22  |   1   7   4   3   4   2   9   5    1 |    3   6   6   3   6   3   8   5    4
 X23  |   5   7 ---   9  10   4  10   7    3 |    3   4 ---   3   2   2   4   3    2
  24  |   2   8   6   3   3   4   6   5    2 |    3   9   7   4   4   4   7   7    3
  25  |   3   8   7   3   2   2   7   5    2 |    4   6   4   3   4   4   9   5    3
 X26E |   3   8  12   3   3 ---   9   3    3 |   10  16  13  11  11 ---  11   9   11
  27  |   2   7   7   3   4   3   8   4    2 |    4  10   8   4   5   5   8   4    5
  29E |   3   5  12   3   3   4   7   3    2 |    7  11  12   8   9   9  10   9    8
 X30  |   2   7   6   3   9 ---   8   4    2 |    5   9   8   5   8 ---   9   6    6
  31  |   3   8   6   2   4   3   8   6    2 |    4   8   7   3   5   4   9   5    4
------|--------------------------------------|--------------------------------------
 RMS  |   3   8   9   3   4   4  10   6      |T   5   9  10   5   7   5   9   7    6
 WRMS |   3   8   7   3   4   3  10   5      |NE  5   8   7   5   7   5   9   7    5
 MEDI |   3   7   8   3   4   3   9   5      |MD  4   9   7   4   6   4   9   5    5

Table 3.1048.2   GPS week: 1048   Day: 2   MJD: 51582.0

               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
------|--------------------------------------|--------------------------------------
  X1E |   3   7 ---   3   4   3  12   6    2 |    8  12 ---   9   9   8  12   9    9
   2  |   3   7   6   3   3   4  13   5    2 |    4  11   8   5   6   7  12   7    6
   3  |   4   6   6   3   4   3   7   4    2 |    4   8   8   4   5   5   7   5    6
  X4  |   3   9 ---   3   4   5   9   5    2 |    4   8 ---   4   4   9   7   8    5
   5  |   2   6   6   2   3   3   7   4    2 |    5   8   8   5   5   6   6   5    6
   6  |   3  10   9   4   3   3   8  10    3 |    4   9   7   5   4   5   8   9    5
   7  |   4   9   8   2   4   2  10   4    2 |    4  10   7   4   5   6   8   5    5
   8  |   4  10   5   2   3   4   8   4    2 |    3  12   5   3   3   8   6   5    4
   9  |   2   8   6   2   4   2   7   4    2 |    4  10   7   5   6   5   7   6    5
  10  |   4   6  11   4   3   3   9  14    3 |    4   8  12   5   6   3  11  16    6
  11  |   4  10   8   4   4   5  16  15    3 |    5  10  11   6   6   5  12  12    5
 X13E |   4  12   8   4   3 ---   9   7    3 |    6  10  10   4   5 ---   7   8    6
 X14  |  15  11 ---  20  11  11  17  11    8 |   10  13 ---   8   9  12  14  12    8
 X15  |   4   5   8   3   4 ---   9   6    2 |    7   4   3   3  11 ---  11   7    7
  16  |   3   9  10   3   6   3   9   4    2 |    5  11  10   8   8   7   8   6    6
  17  |   3   7   4   4   3   3  10   6    2 |    3   9   5   6   5   4   9   4    4
 X18E |  11   9  23   8   7 ---  15   9    6 |   13  12  18  11  16 ---  13  14   11
 X19  |  10   9 --- ---  20   9   6  11    5 |   22  22 --- ---  24  22  22  23   21
  21  |   2   8   7   2   2   2   8   4    2 |    4   7   7   5   5   4   9   6    6
  22  |   3   7   7   2   2   3   7   5    2 |    4   8   8   5   5   5   7   7    5
 X23  |   5  11 ---   4  11   4  11   7    3 |    3   6 ---   4   4   4   4   3    4
  24  |   2   6   6   2   2   3   8   9    2 |    3   8   6   3   3   4   7   7    3
  25  |   3   9   4   4   3   3   7   4    2 |    4   5   6   3   5   3   6   5    4
 X26E |   3   4  12   3   4 ---  10   5    3 |    9  10  15  10   8 ---  10   8   10
  27  |   3   9   5   2   5   3   9   5    2 |    3  11   5   5   5   4   8   6    5
  29E |   3   7  14   4   2   3   8   4    2 |    9  10  12   9  10  12  11  11   10
  30  |   2   7   6   1   4   2   6   4    1 |    5   7   7   6   6   9   8   6    6
  31  |   3   8   7   4   3   3   9   6    2 |    5   9  10   5   6   4   9   7    6
------|--------------------------------------|--------------------------------------
 RMS  |   3   8   8   3   4   3   9   7      |T   7  10   9   5   8   7   9   9    7
 WRMS |   3   8   6   3   3   3   9   5      |NE  7  10   7   5   8   8  10   9    7
 MEDI |   3   8   7   3   4   3   9   5      |MD  4  10   8   5   6   5   8   7    6

Table 3.1048.3   GPS week: 1048   Day: 3   MJD: 51583.0

               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 |   3   8  11   2   3   3  11   6    2 |    7  10  13   8   8   7  12   7    7
  X2  |   3   9 ---   3   4   3   9   6    2 |    3  10 ---   6   7   7   8   5    4
   3  |   3   5   7   2   3   3   8   4    2 |    4   7   6   4   5   5   6   5    5
   4  |   2   8   5   2   4   6   7   4    2 |    4   7   7   4   5   6   8   3    4
   5  |   2   6   6   2   3   4   9   4    2 |    4   7   5   4   5   6   7   4    4
   6  |   2   5   9   4   5   4   8   6    2 |    3   7   5   5   5   5   8   4    4
   7  |   2   8   7   2   4   7   9   6    2 |    3   6   6   4   4   7   9   4    4
   8  |   2   8   6   2   3   3   8   4    2 |    4  10   6   4   4   6   8   3    4
   9  |   2   7   6   2   3   4   7   7    2 |    4   8   8   5   6   6   8   7    5
  10  |   3   8  12   3   3   4   7   6    2 |    4   8  12   4   6   6  12   9    4
  11  |   4  10   9   2   5   6  18  15    3 |    7  14  15   8   9  10  16  14    9
  13E |   3  10   7   3   3   7   9   7    3 |    3  10  10   4   4   5   8   6    5
 X14  |   3  10  10   2   3 ---  10   5    3 |   10   6   7   9   9 ---   9  11    8
 X15  |   4   8  10   3   3 ---  11   6    3 |    5   4   3   4   8 ---   8   6    5
 X16  |   3   6 ---   2   5   4  10   5    2 |    7   8 ---   7   7   7   7   7    8
  17  |   4   7   5   7   4   4   7   4    2 |    5   7   4   9   6   6   7   5    5
 X18E |   4   7  12   3   4 ---   7   6    3 |    9   9  12   8   8 ---   9   9   10
  19  |   5  11  39   5   8   9  16   7    3 |   24  20  13   4  24  22  26  22   22
  21  |   3  10   5   2   2   4   7   4    2 |    4  12   6   5   6   6  10   6    5
  22  |   2   6   3   2   5   4  12   5    2 |    4  10   6   5   6   8  11   6    5
 X23  |   4   8 ---   5   9   4   7   8    3 |    3   7 ---   3   3   3   4   3    3
  24  |   1   7   6   2   2   4   6   3    2 |    3   5   5   3   5   5   9   4    3
  25  |   2   9   4   4   4   6   8   4    2 |    3   9   5   4   5   5   8   4    4
  26E |   4   4  10   4   4   3  14   4    2 |   13  18  16  16  17  14  19  16   15
  27  |   2   5   6   2   3   3   7   5    2 |    4   8   7   6   7   6   7   4    5
  29E |   3  10  11   3   3   3   7   5    2 |    9  11  11   9  10   8  11   9    8
  30  |   1   5   8   2   3   4   6   3    2 |    6   7   8   5   6   8   6   6    6
  31  |   3   7   5   2   3   4   9   5    2 |    6  12   8   6   6   6   8   7    7
------|--------------------------------------|--------------------------------------
 RMS  |   3   8  11   3   4   5  10   6      |T   7   9   8   6   8   8  10   8    7
 WRMS |   3   7  12   3   3   4  10   4      |NE  8   9   8   5   8   8  11   8    7
 MEDI |   3   8   7   2   3   4   8   5      |MD  4   8   7   5   6   6   8   6    5

Table 3.1048.4   GPS week: 1048   Day: 4   MJD: 51584.0

               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 |   3   5   8   2   6   2   7   6    2 |    8  10  12   9  12   9  12   9    8
   2  |   3   9   4   2   4   3   8   8    2 |    5  10   4   4   6   5  10   8    4
   3  |   4   9   7   2   4   3   7   8    2 |    3  10   5   3   4   3   8   6    2
   4  |   2   5   7   2   3   3   7   4    1 |    4   7   5   4   5   4   9   5    4
   5  |   2   8   4   2   3   2   9   4    1 |    5   7   5   3   5   4   9   5    4
   6  |   2   8   7   2   4   3   9   4    2 |    3   7   4   3   4   4  11   5    2
   7  |   2   7   8   3   3   2  10   7    2 |    2   7   5   5   3   3  11   7    2
   8  |   2   8   4   1   3   2   9   4    1 |    4   7   4   3   5   4  11   6    3
   9  |   3   8   4   4   2   3   6   4    2 |    4   8   6   6   6   4  10   4    5
  10  |   3   6  10   3   2   3   7   5    2 |    3   7  12   5   6   3  11   4    4
  11E |   4  13   6   3   4   4  22  16    3 |    8  16  12   8  10   8  23  17    9
  13E |   3  10   8   2   3   4  12   8    2 |    4  10  10   5   7   5  12   8    4
  14  |   4  14  17   2   3   2  10   5    3 |    9  10   9  10  10   9  12  11    9
 X15  |   6  34 --- ---  28 ---  27  15   10 |   27   7 --- ---  30 ---  34  24   26
  16  |   4   9  16   2   3   3   8   6    3 |    4   7   4   5   4   5   6   4    5
  17  |   2   6   6   2   2   3   7   5    1 |    4   6   7   5   5   5   8   5    4
 X18  |   4   6  13   3   4 ---   6   6    3 |    8  10  10   9   7 ---   9   8    9
  19  |   3   6   7   2   3   1  12   4    1 |   13  14   9   3  15  12  14  14   14
  21  |   3   9   6   3   2   3  12   5    2 |    5  10   7   5   6   5  12   6    4
  22  |   2   9   5   3   4   2   7   6    2 |    4  11   5   4   6   4  12   6    4
 X23  |   5  11 ---   4   6   3  12   8    3 |    2   5 ---   3   2   2   5   3    2
  24  |   3   9   7   1   4   3   6   3    2 |    5   8   5   5   6   4  10   5    5
  25  |   3  10   3   3   4   2   9   4    2 |    4   8   4   3   5   3  12   4    3
  26E |   3   5   8   2   4   2   8   4    2 |   14  17  12  15  17  15  20  14   14
  27  |   2   7   5   1   2   2   8   5    1 |    4  10   7   4   6   4  10   5    5
  29  |   4   7   8   2   3   3  13   5    2 |   10  11  10  11  10  12  13  12   10
  30  |   2   9   4   1   3   2  11   3    1 |    6   9   6   5   7   7  12   7    5
  31  |   4   9   4   2   4   3  21  10    2 |    6  11   6   5   5   4  24   9    5
------|--------------------------------------|--------------------------------------
 RMS  |   3   8   8   2   3   3  11   6      |T   8   9   7   6   9   6  13   9    7
 WRMS |   3   9   6   2   3   3  11   5      |NE  9   9   7   5  10   6  14   9    9
 MEDI |   3   9   7   2   3   3   9   5      |MD  5  10   6   5   6   4  11   6    5

Table 3.1048.5   GPS week: 1048   Day: 5   MJD: 51585.0

               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 |   2   4   8   3   4   3   9   7    2 |   11  11  16  12  13  12  14   8   11
   2  |   2   6   9   3   4   3   7   5    2 |    5   6   6   7   9   5  10   6    5
   3  |   4   9   5   3   5   3   6   3    2 |    5  11   7   6   7   6   8   5    5
   4  |   2   9   5   3   3   3   8   4    2 |    4  11   7   5   5   5   9   4    5
   5  |   2  10   7   2   3   2   9   4    2 |    5  12   9   5   7   6  13   4    5
   6  |   2   7   6   1   4   3  10   3    1 |    5  10   5   6   6   6  10   5    5
   7  |   2   7  11   3   5   3   9   6    2 |    5   7   9   4   7   5   9   7    4
   8  |   2   6   4   3   5   2   7   4    1 |    4   6   5   6   8   3  10   5    4
   9  |   3  10  10   2   3   2   7   4    2 |    5  10   7   5   6   5   9   5    5
  10  |   3   8  12   3   3   3   7   4    2 |    4  10  12   5   5   5   8   4    4
  11E |   2   8  10   4   5   4  15  14    3 |    5   7  11   6   7   6  11  10    5
 X13  |   3  11 ---   3   6   6   8   8    3 |    5  13 ---   5   7   6   9   7    5
 X14  |   9  14 ---  12  12  14  15  10    6 |   15  12 ---  13  12  11  11  14   13
 X15  |   3  14 ---   4   4 ---   9   7    3 |   29   4 ---   3  36 ---  37  25   28
  16  |   2   8  15   4   4   3   9   7    3 |    5   5   3   6   6   4   7   5    4
  17  |   3   7   7   6   6   3   7   4    2 |    6  11   8   9   8   5   8   5    5
 X18  |   4   9  24   5   6 ---   5   6    4 |   11  13  13  11  11 ---  12  10   11
  19  |   3   7   8   3   6   2   8   4    2 |    6   6   5   5   8   6  11   8    6
  21  |   2   7   5   2   4   3   7   3    1 |    5   9   6   5   6   5   9   6    5
  22  |   2   9   6   3   3   2   9   4    2 |    6  11   7   6   6   7  11   8    6
 X23  |   4   6 ---   5  13   4   8   7    2 |    4   5 ---   5   5   4   6   5    4
  24  |   2  11   6   3   3   3  10   3    2 |    4  13   7   6   5   6   9   5    5
  25  |   2  10   5   3   3   2   7   4    2 |    4   8   6   4   5   4   7   5    4
  26  |   2   7   9   3   4   4   9   5    2 |   11  15  12  12  10  13  13  11   11
  27  |   2   5   5   3   4   2   7   4    1 |    5   9   6   7   7   5  10   4    6
  29  |   3   9  10   3   5   5   9   4    2 |    7  11   7   8   8   9  12   8    7
  30  |   1   9   6   2   4   2   9   5    2 |    6  11   9   7   7   6  12   8    6
  31  |   3  10  10   4   5   4   6   5    2 |    7  13  14   7   6   6  10   5    7
------|--------------------------------------|--------------------------------------
 RMS  |   2   8   8   3   4   3   8   5      |T   8  10   8   7  10   6  12   8    8
 WRMS |   2   8   7   3   4   3   8   4      |NE  9  10   8   7  11   6  12   9    9
 MEDI |   2   9   8   3   4   3   8   4      |MD  5  11   7   6   7   6  10   6    5

Table 3.1048.6   GPS week: 1048   Day: 6   MJD: 51586.0

               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   9   3   5   3  12   8    2 |   14  17  13  14  13  14  17  16   13
   2  |   2   6   5   2   3   3  12   7    2 |   10   7   8  10   8   9  12   8    7
   3  |   3   7   7   3   6   3  11   6    2 |    7   9   8   8   7   7  10   7    5
   4  |   2   5   7   2   3   2  12   5    1 |    8  10   8   9   8   9  15   6    7
   5  |   2  11   6   2   2   3   9   5    2 |   10  10   8   9   7   9  11   6    7
   6  |   2   7   6   2   3   2  11   5    1 |   10   7   6   8   7   7  13   6    5
   7  |   2   9   7   2   4   2  11   5    2 |    8   7   9   9   8   7  11   7    6
   8  |   2   8   5   2   2   2   8   4    1 |    9   7   8   9   8   7  10   7    7
   9  |   3   6   8   1   6   3   9   4    2 |    9   8  10   9   9   8  14   8    7
  10  |   3   7  12   2   2   2   8   4    2 |    9   8  12   8   7   7  13   6    6
  11E |   3   9  11   3   9   4  13  13    3 |    8  11  13   8  10   7  16  14    7
  13  |   4   8   8   3   5   4   9   7    2 |    9   6   7   8   8   8  12  10    6
 X14  |   8  10 ---   5  10  12  20   7    4 |   10   5 ---   8   7  11  12  10    9
 X15  | --- --- --- --- --- --- --- ---    0 |  --- --- --- ---  31 ---  24 ---  ---
 X16  |  13  18 ---  12  19  13  14  10    6 |   12  10 ---  12  10  10  10  13   10
  17  |   4   6   7   4   3   2   7   3    2 |   10   8   8   8   7   6  13   7    6
 X18  |   4   6  15   3   7 ---   9   8    3 |   12  10  12  12  12 ---  14  13   11
  19  |   3   8   8   1   4   2   8   6    2 |   11  10   6   6  11  10  12  10   10
  21  |   3   6   9   2   3   2   8   4    2 |   10  10  10  11   9   9  14   8    8
  22  |   3   5   7   2   3   2  15   6    2 |    9   9   8  11   8   8  13   8    7
 X23  |   5   9 ---   5  15   3   9   8    3 |    6   6 ---   5   5   5   6   5    5
  24  |   2   6   6   2   6   2   8   4    1 |    9  10   7   8   8   9  14   7    6
  25  |   2   8   8   2   3   2   8   5    2 |    9   6  11   9   7   7  11   6    7
  26  |   3   7  11   4   6   2  10   4    2 |   14  15  13  15  14  15  19  15   13
  27  |   2   5   7   1   3   2   9   6    2 |    9   9   8  10   8   8  10   8    8
  29  |   3   8  13   3   4   3   9   4    2 |   13  13  11  13  12  13  16  13   11
  30  |   3   9   8   2   2   3  11   3    2 |   13   8  12  12   9  10  11  10    9
  31  |   3   5   8   4   8   2  13   6    2 |    8   8  12   7   8   6  11   8    6
------|--------------------------------------|--------------------------------------
 RMS  |   3   7   8   3   4   3  10   6      |T  10   9   9   9  10   9  13   9    8
 WRMS |   3   7   7   3   4   3  10   5      |NE 10   9  10   9  11   9  13   9    8
 MEDI |   3   7   8   2   4   2   9   5      |MD  9   9   9   9   8   8  13   8    7

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 4.1048   GPS week: 1048   MJD: 51580.0-51586.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2637 |U  11   12   20 |U   8    8   12 |
emr | emr 2598 |   11    6   18 |U   2    2    2 |
esa | esa 2328 |    8   12   16 |    5    5   10 |
gfz | gfz 2605 |    6    6   13 |    2    1    3 |
igc | igc 2641 |    7    8   14 |    3    2    5 |
igr | igr 2680 |    5    6   11 |    2    2    3 |
igs | igs 2660 |    5    7   12 |    2    2    4 |
jpl | jpl 2387 |   10   16   13 |U   4    4    8 |

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 5.1048.0   GPS week: 1048   Day: 0   MJD: 51580.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2659 |   19   20   37 |    8    8   10 |
emr | emr 2671 |   19   10   27 |    2    2    2 |
esa | esa 2457 |   14   18   18 |    3    3    7 |
gfz | gfz 2668 |    3    4    8 |    3    2    4 |
igc | igc 2677 |    8   12   20 |    3    2    5 |
igr | igr 2673 |    4    7    8 |    2    3    4 |
igs | igs 2686 |    8   10   19 |    2    3    5 |
jpl | jpl 2386 |   21   19   18 |    3    4    5 |

Table 5.1048.1   GPS week: 1048   Day: 1   MJD: 51581.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2660 |    6   10   15 |   11    7   17 |
emr | emr 2671 |    3    2    6 |    2    2    3 |
esa | esa 2281 |    7   11   19 |    7    8   11 |
gfz | gfz 2576 |    2    4    6 |    3    1    5 |
igc | igc 2674 |    9    7   13 |    4    2    7 |
igr | igr 2673 |    6    3   10 |    2    2    4 |
igs | igs 2687 |    4    6    8 |    3    2    5 |
jpl | jpl 2154 |    5    6    7 |    6    5   14 |

Table 5.1048.2   GPS week: 1048   Day: 2   MJD: 51582.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2660 |    9   12   16 |    9    6   13 |
emr | emr 2580 |   13    9   26 |    2    2    3 |
esa | esa 2187 |    4   12    7 |    7    4   13 |
gfz | gfz 2572 |    9    9   21 |    1    1    4 |
igc | igc 2675 |    9   10   12 |    4    3    6 |
igr | igr 2676 |    4    8   11 |    2    2    3 |
igs | igs 2687 |    3    5    5 |    3    2    5 |
jpl | jpl 2294 |    5   35   11 |    5    6    8 |

Table 5.1048.3   GPS week: 1048   Day: 3   MJD: 51583.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2688 |   11   10   16 |    8   10   12 |
emr | emr 2680 |    8    6   14 |    2    2    2 |
esa | esa 2378 |   10    9   20 |    2    4    6 |
gfz | gfz 2670 |    9    5   15 |    1    1    3 |
igc | igc 2687 |    6    6    9 |    1    3    3 |
igr | igr 2680 |    9    6   15 |    2    1    2 |
igs | igs 2688 |    6    5    8 |    1    2    3 |
jpl | jpl 2391 |    9    6   16 |    2    2    4 |

Table 5.1048.4   GPS week: 1048   Day: 4   MJD: 51584.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2660 |    7    7   17 |    6    5   11 |
emr | emr 2589 |    5    3   11 |    2    2    2 |
esa | esa 2388 |    5    4   10 |    3    5    8 |
gfz | gfz 2576 |    6    7   15 |    1    1    2 |
igc | igc 2592 |    7    7   15 |    2    2    3 |
igr | igr 2686 |    3    5    9 |    2    1    2 |
igs | igs 2688 |    4    6   13 |    1    1    3 |
jpl | jpl 2493 |    7    7   17 |    1    1    2 |

Table 5.1048.5   GPS week: 1048   Day: 5   MJD: 51585.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2565 |    3   10   10 |    9    8   10 |
emr | emr 2496 |    8    4   14 |    1    1    2 |
esa | esa 2304 |    7   16   21 |    5    4   14 |
gfz | gfz 2586 |    4    4    9 |    2    1    2 |
igc | igc 2592 |    3    5    9 |    3    3    4 |
igr | igr 2685 |    5    5    9 |    4    2    4 |
igs | igs 2592 |    3    6   11 |    2    2    4 |
jpl | jpl 2496 |    5    3    9 |    3    3    4 |

Table 5.1048.6   GPS week: 1048   Day: 6   MJD: 51586.0

CENT| CLK EPO  |      BRUS      |      WILL      |
----|----------|----------------|----------------|
cod | cod 2565 |    0    0    0 |    0    0    0 |
emr | emr 2496 |    0    0    0 |    0    0    0 |
esa | esa 2304 |    0    0    0 |    0    0    0 |
gfz | gfz 2586 |    0    0    0 |    0    0    0 |
igc | igc 2592 |    0    0    0 |    0    0    0 |
igr | igr 2685 |    0    0    0 |    0    0    0 |
igs | igs 2592 |    0    0    0 |    0    0    0 |
jpl | jpl 2496 |    0    0    0 |    0    0    0 |

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 6.1048   GPS week: 1048   MJD: 51580.5-51586.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -11     -1      1     -3    -24 |      -3     38
            |      4      6      7     16     25 |       8
emr   uuuuu |     10      1      3     23      5 |     -17     37
            |     12      7     20     39     16 |       1
esa   uuuuu |     -9     -1      2     -7     11 |      16     29
            |      7     12     16     32      9 |       2
gfz   uuuuu |      3      4      2     -5      2 |      -3     23
            |      2      4      5     17      8 |       5
igr   xxxxx |     -8      2     -7     13      9 |       4     21
            |      7     12     20     30     31 |       2
jpl   uuuuu |      8     -2     -5     13      4 |      -4     32
            |      6     14     17     21     24 |       4
ngs   xxxxx |     64      0    -49     80     61 |     -89     99
            |     12     27    107     62     44 |       9
sio   uuuuu |     -1      1      0     -5     -2 |     -36     42
            |      8      8     14     10     16 |       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 7.1048.0   GPS week: 1048   Day: 0   MJD: 51580.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -6     -7      3    -24    -58 |      10     34
emr   uuuuu |     -7      3      6    102     12 |     -16     36
esa   uuuuu |     -7    -18     -5    -17     15 |      19     32
gfz   uuuuu |      2     -2      0    -16     -1 |       4     25
igr   xxxxx |    -13     11     -7     50      8 |       7     23
jpl   uuuuu |     -1     25     18     54     40 |      -3     33
ngs   xxxxx |     69     25    -65     65     28 |     -98    109
sio   uuuuu |     12      3    -17     -7    -12 |     -26     38

Table 7.1048.1   GPS week: 1048   Day: 1   MJD: 51581.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -9     -5     -3     -4    -42 |       5     34
emr   uuuuu |     22      5     27     15      4 |     -16     36
esa   uuuuu |    -13     -3     -2     14     18 |      18     32
gfz   uuuuu |     -1      7      4      1      3 |       2     22
igr   xxxxx |     -8     -4     -3    -18     43 |       6     22
jpl   uuuuu |      7     -4     -8     -1     19 |      -2     33
ngs   xxxxx |     60     28    -53     25     25 |     -98    108
sio   uuuuu |      0      6      1     -5    -11 |     -30     38

Table 7.1048.2   GPS week: 1048   Day: 2   MJD: 51582.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -16     -5     -1      0    -41 |       0     34
emr   uuuuu |      8     -2    -18     45     34 |     -16     36
esa   uuuuu |     -4      0     33    -13      2 |      16     29
gfz   uuuuu |      5      3     12    -16    -12 |      -1     20
igr   xxxxx |    -10     17     18     22     36 |       5     20
jpl   uuuuu |     14      3    -13     10     25 |      -1     33
ngs   xxxxx |     55     23    -45     37    138 |     -97    107
sio   uuuuu |    -11     -2     -9     -6     24 |     -34     40

Table 7.1048.3   GPS week: 1048   Day: 3   MJD: 51583.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -10      4     17     -7    -27 |      -4     37
emr   uuuuu |     27      0      2     12     -3 |     -14     35
esa   uuuuu |      2     -4    -19    -19     24 |      16     29
gfz   uuuuu |      6      7     -1     -2      0 |      -3     21
igr   xxxxx |    -16      3      6     18     36 |       6     21
jpl   uuuuu |      0    -20    -34     12    -15 |       1     32
ngs   xxxxx |     50      5    -12     50     42 |     -86     98
sio   uuuuu |     -8      7     20      9     15 |     -35     40

Table 7.1048.4   GPS week: 1048   Day: 4   MJD: 51584.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -13      8     -2     13    -10 |     -10     41
emr   uuuuu |     10    -10    -19    -14      2 |     -18     39
esa   uuuuu |    -18     -1      0     21      6 |      12     27
gfz   uuuuu |      2     -3      4    -12      8 |      -8     24
igr   xxxxx |      1      5      5    -26      1 |       3     19
jpl   uuuuu |     13     -6     -6      9    -13 |      -7     31
ngs   xxxxx |     66    -23    134    139     31 |     -84     96
sio   uuuuu |     -2     11     17    -23     -7 |     -39     44

Table 7.1048.5   GPS week: 1048   Day: 5   MJD: 51585.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -13      3     -4    -20     -5 |     -10     41
emr   uuuuu |      1     -2     30     -1    -17 |     -18     39
esa   uuuuu |    -14     22      3     30     11 |      14     27
gfz   uuuuu |      5      8     -3     28     14 |      -8     24
igr   xxxxx |      1      3    -38     48    -32 |       3     19
jpl   uuuuu |     14    -14      1    -12    -21 |      -7     30
ngs   xxxxx |     64    -26    -70     52     60 |     -81     92
sio   uuuuu |      2     -5     -2      5     -5 |     -41     46

Table 7.1048.6   GPS week: 1048   Day: 6   MJD: 51586.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -14     -3      1     20     12 |     -10     42
emr   uuuuu |     10     11     -8      5      3 |     -19     40
esa   uuuuu |    -10     -1      4    -64     -2 |      14     27
gfz   uuuuu |      2      5     -3    -20      5 |      -8     24
igr   xxxxx |     -8    -21    -27     -2    -29 |       1     21
jpl   uuuuu |     12      0     10     17     -6 |      -9     32
ngs   xxxxx |     86    -34   -231    193    104 |     -76     87
sio   uuuuu |      0    -11    -11     -7    -19 |     -43     47