Subject: [IGSREPORT-3444] Wk 0890 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Tue, 11 Feb 1997 13:31:40 PST

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IGS Electronic Report    Tue Feb 11 13:31:40 PST 1997      Message Number 3444
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0890 IGS Final Orbits

Final IGS Orbit Combination - Week 0890   (Jan 26, 1997 - Feb 01, 1997)

Contacts: J. Kouba ([email-masked])
          Y. Mireault ([email-masked]), F. Lahaye ([email-masked])

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS08907.SUM).

SOFTWARE:

  The weighted average software used was developed by T. Springer and
G. Beutler during 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, Kouba and Springer, 1995, Combining the orbits of the IGS Analysis
   Centers, Bulletin Geodesique, 69, pp 200-222.

   Kouba, Mireault and 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.

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.
These values are supplemented with the current IERS Bulletin A UT1-UTC values. 

  The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

 IGS08900-6.SP3  IGS GPS ephemeris files for days 0-6, week 0890 in SP3 format.
 IGS08907.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08907.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. Only the GFZ "exact" clock corrections (one epoch out of two) are included
   in the combination and RMS computation (no "interpolation" values).

3. Rapid ("IGR") orbits/clocks are included in the combination for statistics
   only.

4. The following centre clock solutions, which provide broadcast clock
   corrections, were excluded from the combination but kept in the combination
   statistics:
            -> Centre: NGS 

5. Centre clock weights were determined using the following non-SA satellites:

                  Day | PRN list
                  ----+---------
                  0-6 |  15 

6. The following clock solutions were excluded from the combination because
   they were biasing the combined clock solutions (large clock shifts/outliers)
   but were kept for the RMS computation. Note that starting with week 860, 
   Centres with clock RMS higher than 2 ns are excluded from the clock 
   combination if they bias the combined clock solution. This will make IGS 
   clock precision more comparable to the best ACs.

                  Day | Centre | PRN list
                  ----+--------+---------------
                  1-6 |  ESA   |  ALL
                   2  |  GFZ   |  10 24

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

                  Day | Centre | PRN list
                  ----+--------+---------------
                   4  |  ESA   |  14

8. State vector resets were modeled for the following satellites to
   alleviate the effects of modeling problems, experienced by all centres,
   in the Long Arc (LA) process:

          Day (Date) |   TIME   |  PRN  | Centres  | Reason
         ------------+----------+-------+----------+-------------------
          1 (Jan 27) | 00:00:00 |  16   |   All    | Modeling problems
          2 (Jan 28) | 00:00:00 |  18   |   All    | Modeling problems
          3 (Jan 29) | 00:00:00 |  23   |   All    | Modeling problems
          5 (Jan 31) | 00:00:00 |  14   |   All    | Modeling problems (a)

  (a) Due to unrealistic long arc RMS, PRN14 was excluded from the long arc 
      evaluation on days 0-1 and 4 for ACs that submitted solutions for 
      this satellite;

9. Centre specific UT1-UTC values for NGS were not used in the long arc
   evaluation.  Smaller RMS were obtained when UT1-UTC values from Bulletin A
   were used.

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS08907.SUM).

Table 1: Week 0890 summary.                       (Jan 26, 1997 - Feb 01, 1997)

Table 1.0890.a   GPS week: 0890   MJD: 50474.0-50480.0

         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  85 | .00  .02  .00  -.11   .07   .13  -.5  .07  .05 |    3.0   -3.3     .5
        | .00  .00  .00   .18   .15   .23   .1           |    7.7   12.1
emr  31 |-.01  .00 -.01   .22  -.05   .30  -.3  .10  .10 |  466.1   50.6     .4
        | .01  .01  .01   .15   .12   .35   .1           |  195.2   15.1
esa  58 | .00  .00  .01   .22  -.07   .29  -.1  .23  .08 |   -9.1  -46.5    3.2
        | .00  .01  .01   .14   .16   .13   .1           |   29.7   18.5
gfz  53 | .00 -.03  .01   .03  -.01  -.55  -.3  .08  .07 |  467.0   51.4    1.1
        | .00  .00  .00   .12   .07   .15   .1           |  195.4   15.2
igr  n/a| .00  .00  .00  -.03   .03   .14  -.1  .10  .06 |     .8   -1.4     .8
        | .00  .01  .01   .16   .16   .22   .2           |    1.9    3.7
jpl  37 | .00  .02 -.01  -.16  -.07   .07   .3  .06  .06 |  734.6   52.7     .3
        | .01  .01  .00   .14   .12   .09   .1           |  390.9   15.6
ngs  54 | .00 -.05  .00   .17   .36  -.05   .0  .14  .14 |     .7    1.0   80.3
        | .01  .01  .01   .31   .31   .13   .1           |    8.9   15.4
sio  53 | .00  .01  .01  -.11  -.06   .01  1.5  .10  .09 |     .0     .0     .0
        | .01  .00  .01   .10   .07   .19   .1           |     .0     .0

Table 1.0890.b   GPS week : 0890   MJD: 50474.0-50480.0

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

              Day of GPS week
 PRN  |   0   1   2   3   4   5   6 |  Remarks
------|-----------------------------|------------------------------------------
   1  |   4   3   3   3   3   3   3 |
   2  |   3   3   3   2   2   2   2 |
   3E |   4   4   4   3   4   4   4 |
   4  |   3   3   3   3   3   3   3 |
   5  |   3   2   3   3   3   2   2 |
   6E |   4   4   5   4   3   4   4 |
   7E |   4   4   4   4   4   4   4 |
   9  |   2   2   2   3   2   2   2 |
  10E |   3   4   3   3   3   3   3 |
  14E |   4  12   3   3  10   3   4 | Modeling problems on days 1,4.
  15  |   3   4   3   4   3   2   3 |
  16E |   6   6   4   4   4   3   3 |
  17  |   4   3   4   3   3   3   3 |
  18  |   5  10   4   3   3   2   3 | Modeling problems on day 1.
  19  |   2   4   2   2   3   2   2 |
  21E |   4   4   3   3   4   3   3 |
  22  |   4   5   4   4   3   3   3 |
  23E |   6   5   5   5   3   3   5 |
  24  |   4   3   3   3   3   3   2 |
  25  |   3   3   3   3   3   2   2 |
  26  |   4   4   3   3   3   2   3 |
  27  |   2   4   3   3   3   3   3 |
  29  |   3   4   3   3   3   3   2 |
  30  |   4   3   3   3   3   2   3 |
  31E |   3   3   4   4   4   3   4 |

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 2.0890.0   GPS week: 0890   Day: 0   MJD: 50474.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  86 | .00  .02  .00   .20   .29   .31  -.5  .08  .06 |   -4.3    4.9     .8
emr  34 |-.01  .01 -.01   .23  -.09  -.14  -.3  .09  .09 |  398.3   59.3     .7
esa  59 | .00  .01  .02   .24   .07   .45   .1  .09  .07 |  -46.3  -40.6    1.5
gfz  53 |-.01 -.02  .01  -.15  -.06  -.69  -.2  .08  .08 |  399.6   59.9     .6
igr  n/a| .00  .00  .01  -.13  -.03   .02  -.2  .06  .05 |    -.5     .3     .6
jpl  37 | .00  .01 -.01  -.35  -.15   .18   .5  .07  .07 |  399.6   59.3     .7
ngs  54 | .00 -.05  .01  -.27  -.22  -.17  -.1  .13  .13 |  -12.2   21.0   82.0
sio  53 |-.01  .02  .01   .05  -.01   .12  1.4  .12  .14 |     .0     .0     .0

Table 2.0890.1   GPS week: 0890   Day: 1   MJD: 50475.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  85 | .00  .02  .00   .00   .24   .46  -.3  .08  .06 |    9.4   10.2     .4
emr  34 | .01 -.01 -.01   .52   .08   .13  -.2  .12  .12 |  463.4   65.4     .5
esa  59 |-.01  .00  .02   .28  -.37   .46  -.2  .11  .08 |   -1.0  -32.5    3.4
gfz  54 | .00 -.03  .01  -.09  -.07  -.58  -.3  .07  .07 |  464.4   66.9     .3
igr  n/a| .01  .00 -.01  -.13   .07   .43  -.3  .22  .09 |    -.9    4.9     .5
jpl  37 |-.01  .03 -.01  -.28  -.18  -.08   .4  .08  .08 |  463.5   66.3     .3
ngs  54 | .00 -.04  .00   .19   .57  -.21  -.2  .15  .15 |    7.1   10.3   79.2
sio  55 | .00  .02  .01  -.16   .06   .15  1.4  .13  .10 |     .0     .0     .0

Table 2.0890.2   GPS week: 0890   Day: 2   MJD: 50476.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  86 |-.01  .02 -.01  -.18   .08  -.22  -.6  .07  .05 |   14.1  -24.2     .3
emr  34 |-.01  .00  .00   .11  -.21   .81  -.2  .11  .11 |  520.0   23.2     .3
esa  58 | .00  .01  .00   .48  -.14   .17   .0  .09  .08 |   32.8  -59.9    3.2
gfz  55 | .00 -.03  .00   .01   .04  -.27  -.4  .07  .06 |  521.5   23.7    2.7
igr  n/a| .01 -.01 -.01   .27   .09   .04  -.1  .06  .06 |    3.9   -6.6     .3
jpl  37 | .01  .02 -.01  -.11  -.09   .00   .3  .05  .05 |  521.4   23.5     .2
ngs  53 | .00 -.06  .01   .04   .51   .07  -.1  .12  .12 |   13.6  -27.7   80.3
sio  57 | .01  .02  .01  -.24  -.04  -.10  1.6  .09  .09 |     .0     .0     .0

Table 2.0890.3   GPS week: 0890   Day: 3   MJD: 50477.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  84 | .00  .02 -.01  -.30   .07  -.07  -.5  .06  .05 |    -.6  -12.0     .4
emr  32 |-.01  .00 -.02   .27  -.19   .36  -.1  .09  .09 |  542.8   61.4     .3
esa  57 | .00  .00  .01   .20   .04   .20  -.3  .08  .08 |  -26.8  -38.0    3.8
gfz  53 | .00 -.03  .00   .03   .08  -.52  -.3  .07  .07 |  544.1   61.9     .3
igr  n/a| .00  .01  .00  -.04   .03   .15   .1  .05  .04 |    -.1   -1.9    1.1
jpl  37 |-.01  .02  .00  -.05  -.20   .15   .2  .05  .05 |  544.4   61.2     .2
ngs  53 | .02 -.04 -.01   .61   .41  -.11   .1  .14  .14 |   -7.5    9.3   80.9
sio  53 | .01  .01  .02  -.15  -.10   .22  1.5  .08  .08 |     .0     .0     .0

Table 2.0890.4   GPS week: 0890   Day: 4   MJD: 50478.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  84 | .00  .02  .00  -.01  -.08   .19  -.5  .06  .05 |    8.7   -4.1     .5
emr  27 |-.01  .01 -.02   .22  -.08   .47  -.4  .12  .11 |  617.1   39.7     .3
esa  58 | .00  .00 -.01   .08  -.14   .34  -.1  .57  .08 |   25.4  -79.9    3.9
gfz  54 | .00 -.02  .01   .17   .01  -.60  -.3  .08  .07 |  618.3   40.5     .3
igr  n/a| .01 -.02  .00  -.20  -.23   .46   .1  .09  .08 |    3.1   -2.5    1.4
jpl  36 | .00  .01 -.01  -.27   .02   .03   .2  .06  .06 |  617.9   40.1     .2
ngs  55 | .00 -.05  .01  -.11   .74  -.06  -.2  .14  .14 |    6.2   -4.1   80.5
sio  54 | .01  .01  .01   .00  -.10  -.23  1.5  .07  .07 |     .0     .0     .0

Table 2.0890.5   GPS week: 0890   Day: 5   MJD: 50479.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  86 | .00  .02 -.01  -.24  -.10   .02  -.4  .05  .04 |   -5.7    7.2     .3
emr  28 |-.01  .00  .00   .06   .08   .55  -.4  .09  .09 |  652.1   58.8     .2
esa  57 | .00  .00  .01   .16   .04   .22   .0  .08  .07 |  -32.7  -25.5    3.2
gfz  51 | .00 -.03  .01   .06  -.10  -.45  -.2  .07  .07 |  652.0   59.7     .3
igr  n/a| .01  .01  .00   .06   .30  -.10  -.1  .06  .05 |    -.3     .2     .3
jpl  37 | .00  .01 -.01   .04   .12   .08   .2  .04  .04 | 1269.1   64.5     .2
ngs  55 | .00 -.05 -.01   .28   .16   .02   .1  .13  .13 |   -1.1    1.4   81.5
sio  51 | .00  .02  .02  -.15  -.09  -.24  1.3  .08  .08 |     .0     .0     .0

Table 2.0890.6   GPS week: 0890   Day: 6   MJD: 50480.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .01  .02 -.01  -.26  -.02   .19  -.4  .07  .05 |    -.8   -4.9     .8
emr  28 |-.02  .01  .00   .15   .06  -.09  -.3  .08  .08 |   68.9   46.6     .4
esa  58 | .00  .00  .00   .06   .01   .19  -.1  .07  .07 |  -15.4  -49.4    2.5
gfz  49 | .00 -.03  .00   .18  -.01  -.72  -.3  .08  .08 |   68.9   47.5     .4
igr  n/a| .00  .01  .00  -.07  -.05  -.02  -.3  .07  .07 |     .8   -4.4     .6
jpl  37 | .00  .01 -.01  -.07   .01   .10   .2  .04  .04 | 1326.2   54.2     .3
ngs  55 | .01 -.04  .01   .47   .31   .13   .2  .14  .13 |    -.9   -3.4   77.9
sio  51 | .01  .01  .02  -.13  -.16   .13  1.4  .09  .08 |     .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.
         "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 3.0890.0   GPS week: 0890   Day: 0   MJD: 50474.0

               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  |   5   7   8   6   5   6   9  23    4 |    6  11  12  11   9   7  12  22    8
   2  |   6   6   8   5   3   6  10  11    3 |    7   8  10  10  10   8  15   8    8
   3E |   5   8  11   9   8   7  19   8    4 |    9  11  11  15  12   9  17  10    9
   4  |   6   8   5   7   4   6   9   9    3 |    4   9  11   9   8   6  13   7    5
   5  |   7   8   9   6   4   5  11   9    3 |    6   6  12   8   6   5  10  11    6
   6E |   5   9  10   8   5   6  11  14    4 |   11  14  19  12  13   9  16  15   12
   7E |   9  12  14   8   6   7  13   9    4 |    6  11  14  12  10   5  16   7    6
   9  |   5   6   5   8   3   3   8   9    2 |    8   9  12   7   8   8  10  11    7
  10E |   5   6   8   7   4 ---  14   7    3 |   12  16  15  17  14 ---  16  12   13
  14E |   5  14  12   6   5   7  13   8    4 |    0   0   0   0   0   0   0   0  ---
  15  |   5   7   6   9   4   4  10   8    3 |    5   6  13  10   8   6  14   9    6
  16E |   8  17  19  11  11  13  20  13    6 |    2   8   3   2   2   4   2   3    3
  17  |   6   8  15   8   4   5  12   8    4 |    5  12  11   8   6   6  12   8    6
  18  |  19   7   6   6   5   9  16  10    5 |   20  22  27   2  24  27  28  29   23
  19  |   6   5   5   8   6   6   6   5    2 |    6  10  10  13  10   7  10  12    7
  21E |   5  18   7   9   5   7  11   8    4 |   11  19  16  18  13  13  20  12   13
  22  |   4  11   7  12   9   5  15  15    4 |    7  11  11   9   9   5  14  10    6
  23E |  18  13  11  16  10   8  13  12    6 |   21  21  20  24  26  22  31  21   21
  24  |   6  10   5   6   5   5   9  20    4 |    6  10  10  11   9   6  11  16    6
  25  |   6   6   5   5   4   4   9  10    3 |    5   8  12   7   6   7   9  11    6
  26  |   5   6  16   8   3   6  15  16    4 |    5   7   8  10   8   6  12  15    7
  27  |   4   4   4   5   4   5  15   5    2 |    7   8  10   8   7   6  21   8    7
  29  |   5   7   5   6   4   7  17   7    3 |    5   8   8   7   8   8  16   7    6
  30  |   5   8   9   9   3   9  14  17    4 |    7   8  11  10   8   8  10  15    7
  31E |   7   8   4   9   7   6  14  10    3 |    7  12  12  15  11   7  16  12   10
------|--------------------------------------|--------------------------------------
 RMS  |   8   9   9   8   6   7  13  12      |T   8  11  13  11  11  10  15  13    9
 WRMS |   6   9   7   8   5   7  13  14      |NE  7  10  12   9   9   9  14  13    8
 MEDI |   5   8   8   8   5   6  13   9      |MD  7  10  12  10   9   7  14  11    7

Table 3.0890.1   GPS week: 0890   Day: 1   MJD: 50475.0

               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  |   5   9   6   8   6   6   8  10    3 |    5  14   8  13  10   7  14  10    7
   2  |   6  10  10   4   6   4   9   9    3 |    5   9   9  10  10   6  13  11    8
   3E |   7   8  12   8  11   7  14   8    4 |    7  14  13  17  13  12  22  11   11
   4  |   6   9   6   6   9   6  11  10    3 |    5   9   9   9   8   8  14  10    6
   5  |   6   4   6   6   3   5   9   6    2 |    6   8   8   9   8   6  12   7    6
   6E |   4  12   9   8   6   6  15  10    4 |    8  14   7  16  13  11  23  14   10
   7E |   7  11  16   5   7   7  14  11    4 |    9  19  16  13  17  14  26  15   14
   9  |   3   7   7   5   6   5   9   8    2 |    9  10   8   8  11   6  15  12    8
  10E |   9   6  11   4   9 ---  11   7    4 |    8  13  13  11  11 ---  14   7    9
  14E |  14 --- --- --- 101  12 ---  27   12 |    0 --- --- ---   0   0 ---   0  ---
  15  |   6  14  10   9   8   5  12  17    4 |    5  13  12   9  10   6  16  15    6
  16E |  10  14  15   5  13  10  32  17    6 |   11  17  15  14  21  12  38  16   12
  17  |   8   6   6   6   4   5   8   7    3 |    5  11   8   9   8   5  14   8    6
  18  |  14  29  23 ---  16  19  32  23   10 |   27  36  26 ---  29  34  27  33   25
  19  |  11  14  12   6  12   7  15  10    4 |    6  24  19  11  19  10  23  14   12
  21E |   8  14   7  10   4   7  16   8    4 |    8  16  11  13  10   8  19   9    9
  22  |   6  22  19   8   6   6   9  16    5 |    4  26  10   8   8   7  11  12    6
  23E |  13  17   7  10   7  12  13  10    5 |   25  27  27  26  23  23  26  21   24
  24  |   6   6   8   6   6   9  13  10    3 |    5  10   6   9   8   7  14   8    6
  25  |   4   6   9   9   3   6   7   9    3 |    4   8  10   6   7   6   9   8    5
  26  |   5   6  14   7   4   8  10  13    4 |    5   8   8  11   8   8  13  12    6
  27  |   7  12   7   6   9   6  22  15    4 |    6  13   9   7  13   6  19  11    7
  29  |   4  11   5   6   7   6  19  11    4 |    5  10   8   7  11   5  23  12    6
  30  |   6   8   7   6   3   6  15  10    3 |    5  10   9  10   8   5  13   9    7
  31E |   7  11   3  10   5   5  12   8    3 |    5  12  13  12   8   7  17   6    7
------|--------------------------------------|--------------------------------------
 RMS  |   8  12  11   7  22   8  15  13      |T   9  16  12  11  13  11  19  13   10
 WRMS |   6  12   8   7   9   8  15  10      |NE  8  15  11   9  12  10  16  13    9
 MEDI |   6  11   9   6   6   6  13  10      |MD  6  13  10  10  10   7  16  11    7

Table 3.0890.2   GPS week: 0890   Day: 2   MJD: 50476.0

               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   6   6   6   6  14  10    3 |    7  11  11  10   8   5  18   6    7
   2  |   4  10   9   7   4   4   7   6    3 |    7   9   6  11   8   6  10   7    7
   3E |   6  11  11   9   6   5  14   8    4 |    8  10  13  15  11   8  26  12    9
   4  |   5   6   8   7   7   5  10  11    3 |    4  10   9  12  10   4  12  10    5
   5  |   5   7  10   5   3   5   8   7    3 |    6   9   8   8   7   6  10   7    6
   6E |   8  25  10   8   7   8  11  12    5 |    8  26   8  19  10   9  20  13   12
   7E |   7  10  10  10   5   8  14   8    4 |    7  12  11  15  10   5  19  10    8
   9  |   3   6   4   6   5   4   7   8    2 |    7   8   8   7  10   6  11  10    7
  10E |   5   7   7   6   7   4  11   6    3 |   11  15  11  15  14   7  17  10   11
  14E |   8  10   9   5   7   6  15  12    3 |    3  10   7   7   9   4  16   5    5
  15  |   4   6   8   7   5   5  10  11    3 |    5   8  10  11   8   4  14  11    5
  16E |   7  11   5   5  14   6  16  14    4 |    6  16  11  13  18  10  19  15   10
  17  |   8  25   7   5   5   4  11   8    4 |    4  23   9   8   8   5  15   7    5
  18  |  12   8   7   6   8   5  14  13    4 |   10   9  13   8  12   6  18   9    7
  19  |   6   6   5   6   5   3   9   5    2 |    6   9  11   9   9   7  11   9    7
  21E |   5   8   5   7   5   4  14   8    3 |   10  18  14  16  15  11  22  13   12
  22  |   6  19  11   8   4   4  12  11    4 |    7  24  10  10   8   5  13   9    7
  23E |  17  15  14   7   8  10  17  10    5 |   31  41  39  36  34  31  43  31   34
  24  |   5   6   9   8   7   6  10   9    3 |    5   9   8  11   8   6  11   7    5
  25  |   5   7   7   3   5   4   9  10    3 |    5  10  10   6   6   7   9   9    5
  26  |   5   8   9   8   8   5   8  10    3 |    6  10   7  10   9   7  10   8    6
  27  |   3   6   6   4   4   3  17   5    3 |    5   6   8   8   6   5  14   5    6
  29  |   3   7   5   6   3   5  15  12    3 |    7   7   7   8   8   5  15  14    6
  30  |   4  10   8   6   3   5   9   7    3 |    6  12  10   9   7   5  10   8    6
  31E |   5  15  17   9  11   4  15   8    4 |    6  12  13  12  11   5  20   8    7
------|--------------------------------------|--------------------------------------
 RMS  |   7  11   9   7   6   5  12   9      |T   9  15  12  13  11   8  17  11    9
 WRMS |   5  11   8   6   6   5  12   9      |NE  6  11   9   9   8   5  12   8    6
 MEDI |   5   8   8   6   5   5  11   9      |MD  6  10  10  10   9   6  15   9    7

Table 3.0890.3   GPS week: 0890   Day: 3   MJD: 50477.0

               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  |   6   7   6   4   5   6   8   8    3 |   12  11  13  14  11  10  15  11   10
   2  |   3   7   4   3   4   4   9   6    2 |    7  15  12  10   8   8  14   8    8
   3E |   5   7   8   9   5   5  22   7    3 |    8  12   9  15   9   8  16  10    8
   4  |   5   7   8   5   7   5  15   7    3 |    5  12  12  10  12   8  17   9    7
   5  |   5   4   7   6   4   4  15   6    3 |    5   7  12   7   9   5  12   9    5
   6E |   6  13  10   8   6   8  13  12    4 |   11  20  12  15  14  14  19  17   11
   7E |   5  16   7   6   5   5  28   7    4 |    9  13  17  15  11   8  25  11   10
   9  |   4   8   5  10   3   5   9   8    3 |    8  12  13   9  11   9  13  11    9
  10  |   6   7   8   6   7   6  11   9    3 |    9  14  20  12  11   5  15  12   10
  14E |   4   7   6   7   7   5  13   7    3 |    3   9   8   8   8   4  16   7    6
  15  |   6   9  10  12   4   5  10   9    4 |    5  10  16  13   9   6  12  12    6
  16E |   4  13   9   6   5   7  12  14    4 |   11  19  14  13  16  10  22  16   11
  17  |   6   7  10   6   3   4  14   7    3 |    6  11  15   9   7   7  15   8    7
  18  |   5   5   9   5   6   5   8  10    3 |    7   8  13   8   7   5  11   8    5
  19  |   5   4   5   5   3   4  12   6    2 |    6  11  11  10  11   9  14  11    8
  21  |   8  10  12   6   4   7  13   7    3 |    9  15  21  13  11  10  21  11   10
  22  |   7  13   5  11   5   4  15   9    4 |    7  13  10   9   7   6  11   8    6
  23E |  19  13   9  11   7   6  14   8    5 |   18  25  20  20  19  18  23  20   18
  24  |   5   7   9   6   5   5  14   7    3 |    5  11  11  10   9   7  14   8    7
  25  |   4  12  10   6   4   3  11   7    3 |    6  11  12   9   8   8  11   9    7
  26  |   5   9   9   7   4   6  11   9    3 |    5   9  10  10   7   9  15   8    6
  27  |   4   5   8   4   3   4  19   9    3 |    6  11   9   9   9   9  18   8    7
  29  |   4   6   8   8   3   3  15   9    3 |    6   7  11   8   8   5  17   9    5
  30  |   5   6   6   6   5   5  12   7    3 |    5  10  12   9   9   7  11  10    6
  31E |   7   6  10  12   5   6  14   7    4 |    7  10  12  14   9   6  12   9    6
------|--------------------------------------|--------------------------------------
 RMS  |   6   9   8   7   5   5  14   8      |T   8  12  13  11  10   8  16  10    8
 WRMS |   5   9   8   7   4   5  14   8      |NE  6  11  13  10   9   7  14   9    7
 MEDI |   5   7   8   6   5   5  13   7      |MD  7  11  12  10   9   8  15   9    7

Table 3.0890.4   GPS week: 0890   Day: 4   MJD: 50478.0

               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  14   6   4   6   7  11   7    3 |    5  16  11   9   8   7  11  10    7
   2  |   4  11   5   4   4   4   9   4    2 |    6  13  12   9  10   8  16   9    8
   3E |   5  12  13  10   8   6  24   9    4 |    7  12  12  15  12   9  17   9    8
   4  |   4   8   6   6  12   5  12   6    3 |    5  11  12  11  15   6  16   6    7
   5  |   4   8   6   5   6   4  14   6    3 |    5  10  12   9  10   6  15   8    7
   6E |   6  14  10   7  11   5  13   8    3 |    7  17  11  14  15   9  18  11    9
   7E |   6  15  10  10   8   8  25   6    4 |    7  13  15  15  14   6  24   8    8
   9  |   3   7   5   7   8   3   8   8    2 |    8  13  12   9  14   8  13  13    9
  10  |   6  12   4   7  12   6  17   6    3 |    7  16  13  13  16   7  20   8    9
  14E |  16 --- 285 --- ---  15 ---  13   10 |    0 ---   0 --- ---   0 ---   0  ---
  15  |   5  11   7   8   8   6  14   9    3 |    5  14  14   9   9   6  14  11    7
  16E |   6  20  13   4  14   8   9   8    4 |   12  19  13  12  19  11  16  12   11
  17  |   6   9   6   6  12   6  13   6    3 |    6  11  13   8  11   7  15   7    6
  18  |   5  11   5   6  13   5  10   8    3 |    5  10   9   9  12   6  14   7    6
  19  |   8   7   4   7   7   5   6   7    3 |    4  11  12  12  13   7  11  11    7
  21  |   6  15   6  15   7   5  10   6    4 |    8  13  15  14  11   9  15  11    9
  22  |   4   8  11   8   6   4  16  10    3 |    6  14  15  10  13   6  16   8    7
  23E |   7  13   6  13   6   6  10   5    3 |   16  17  19  17  17  15  19  15   15
  24  |   5   9  11   8  10   7  13   5    3 |    6  12  11  11  12   9  16   7    7
  25  |   4   9   4   6   6   5  11   9    3 |    4  12  12   9  11   7  12   9    7
  26  |   5  14   6   9   6   6  13   5    3 |    6  11  10  12   9   5  10   9    6
  27  |   5  10  12   6   9   2  17   5    3 |    5  12  12   8  14   5  16   6    6
  29  |   5   8   8   7  12   5  14   8    3 |    6  12   9   8  10   8  16   8    6
  30  |   4   9   8   6   4   5  18   6    3 |    5  11  12  11  11   7  14  11    7
  31E |   7  13  11  15  15   5  16   8    4 |    5  15   9  14  13   4  14   9    7
------|--------------------------------------|--------------------------------------
 RMS  |   6  12  58   8   9   6  14   7      |T   6  13  12  11  12   7  15   9    7
 WRMS |   5  11   8   7   8   6  14   7      |NE  5  12  12  10  11   6  14   9    7
 MEDI |   5  11   6   7   8   5  13   7      |MD  6  13  12  11  12   7  16   9    7

Table 3.0890.5   GPS week: 0890   Day: 5   MJD: 50479.0

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

Table 3.0890.6   GPS week: 0890   Day: 6   MJD: 50480.0

               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  |   6   7   8   5  11   5  12  15    3 |    7  12  16  13  11  10  14  11    9
   2  |   4   5   5   7   6   4   6   4    2 |    7  11  15  10  11   7  13   8    9
   3E |   5   6   8  10  13   4  24  12    4 |    7  11  15  16  12   8  20  10    9
   4  |   5   4   6   7   7   4  15   9    3 |    6  10  14   9  11   7  16   7    7
   5  |   4   8   4   5   4   3  12   9    2 |    6  10  15   9  11   6  14   8    8
   6E |   4  15   8  10   9   6  16  11    4 |    5  15  12  11  11   7  18  11    6
   7E |   6  14   7   6   9   5  21   5    4 |    8  16  17  12  16   9  20  11   11
   9  |   4   8   3   5   4   4   7   8    2 |    9  13  14   9  11   9  12  12   10
  10  |   7   9   7   7   9   5  11   6    3 |    9  15  17  13  16   8  16  11   12
  14  |   6   8  12  10   5   4  19  14    4 |    4   7  11  11   7   4  14   8    6
  15  |   6   7   9  10   5   4  10   6    3 |    6   9  19  11   9   7  14  12    8
  16  |   7   8   8   9   4   3  18   7    3 |   10  15  16  14  15   9  18  12   12
  17  |   6   7   4   6   5   4  14   9    3 |    6  11  15   9  10   6  15   8    7
  18  |   6   6   7   5  11   6  17  10    3 |    4   9  14   8  11   8  17   9    7
  19  |   6   9   5   5   8   3   7   6    2 |    6  14  13   9  10   9  12   8    8
  21  |   4   8   4   9   6   5  12   7    3 |    9  15  19  13  13  11  16  12   11
  22  |   3   7   5  11   6   5  10  10    3 |    6  10  14  11  11   8  13   9    8
  23  |  21   9   7  10   6   6  11   7    5 |   26  29  34  31  26  28  31  27   28
  24  |   6   7   6   7   5   5   8   5    2 |    7  12  13  12  12   7  14   7    8
  25  |   4   5   7   7   3   5   5   7    2 |    5  11  16   8   9   8  10   8    8
  26  |   5  12   5  12   4   5  12   7    3 |    5  12  11  10   7   6  14   7    6
  27  |   5   6   6   6   5   3  21   7    3 |    6   9  12   6   7   7  21   6    6
  29  |   4   8   3   5   4   2  14   6    2 |    6   9  14   8   7   6  19   6    6
  30  |   4  10   6   9   5   4  12   7    3 |    6  10  15  11  10   7  13   9    9
  31E |   5   8  16  14  13   4  17  14    4 |    6  10  14  13   9   6  17  14    8
------|--------------------------------------|--------------------------------------
 RMS  |   7   8   7   8   7   4  14   9      |T   8  12  15  12  11   9  16  10   10
 WRMS |   5   8   7   8   7   4  13   8      |NE  8  12  16  12  11   9  16  10   10
 MEDI |   5   8   6   7   6   4  12   7      |MD  6  11  15  11  11   7  15   9    8

Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the initial 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 4.0890   GPS week: 0890   MJD: 50474.0-50480.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2396 |U  44   27   74 |U  28   26   68 |   26   14   38 |
emr | emr 2348 |   45   27   80 |   29   27   70 |U  29   15   42 |
esa | esa 2190 |   48   32   88 |U  32   28   67 |   32   17   44 |
gfz | gfz 1159 |   45   32   84 |U  33   29   79 |   32   16   42 |
igr | igr 2322 |   50   27   80 |   29   27   65 |   29   15   45 |
igs | igs 2400 |   45   27   75 |   29   25   67 |   27   14   39 |
jpl | jpl 2346 |U  47   27   75 |U  29   25   66 |   29   15   41 |

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 initial 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 5.0890.0   GPS week: 0890   Day: 0   MJD: 50474.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2391 |   44   23   71 |   26   23   50 |   18   15   38 |
emr | emr 2399 |   44   24   73 |   30   28   70 |   28   15   56 |
esa | esa 2215 |   49   28   81 |   31   26   52 |   25   16   42 |
gfz | gfz 1181 |   39   24   79 |   34   21   47 |   19   15   44 |
igr | igr 2397 |   43   22   71 |   28   25   50 |   20   16   38 |
igs | igs 2400 |   44   24   73 |   28   24   51 |   21   14   39 |
jpl | jpl 2273 |   49   24   73 |   28   22   46 |   26   18   42 |

Table 5.0890.1   GPS week: 0890   Day: 1   MJD: 50475.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2393 |   52   26   73 |   28   22   51 |   19   11   25 |
emr | emr 2302 |   54   22   78 |   28   23   55 |   24   11   28 |
esa | esa 2138 |   55   31   79 |   31   25   49 |   21   16   38 |
gfz | gfz 1085 |   48   30   84 |   32   21   51 |   24   12   28 |
igr | igr 2381 |   53   26   77 |   30   24   53 |   23   16   33 |
igs | igs 2400 |   52   25   74 |   28   22   51 |   21   11   27 |
jpl | jpl 2271 |   56   27   72 |   30   21   51 |   23   14   35 |

Table 5.0890.2   GPS week: 0890   Day: 2   MJD: 50476.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2395 |   35   27   68 |   34   28   70 |   40   11   30 |
emr | emr 2398 |   38   28   80 |   33   30   71 |   41   11   28 |
esa | esa 2191 |   46   27   85 |   36   28   63 |   45   19   36 |
gfz | gfz 1176 |   40   33   75 |   36   35   80 |   54   10   30 |
igr | igr 2389 |   38   27   72 |   33   30   69 |   41   11   32 |
igs | igs 2400 |   37   27   72 |   33   28   69 |   40   11   28 |
jpl | jpl 2372 |   38   27   72 |   33   28   69 |   42   12   32 |

Table 5.0890.3   GPS week: 0890   Day: 3   MJD: 50477.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2397 |   51   28   78 |   27   20   61 |   30   17   46 |
emr | emr 2374 |   52   28   88 |   30   19   59 |   28   16   46 |
esa | esa 2201 |   56   43  107 |   34   25   62 |   32   18   48 |
gfz | gfz 1180 |   56   34   91 |   28   20   68 |   31   23   55 |
igr | igr 2284 |   75   30   93 |   28   24   53 |   31   17   52 |
igs | igs 2399 |   51   28   81 |   28   19   59 |   28   16   46 |
jpl | jpl 2359 |   50   28   80 |   30   20   55 |   31   18   48 |

Table 5.0890.4   GPS week: 0890   Day: 4   MJD: 50478.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |   44   22   71 |   23   12   41 |   25   14   43 |
emr | emr 2282 |   40   24   77 |   24   13   39 |   26   19   44 |
esa | esa 2140 |   49   27   81 |   28   19   43 |   38   18   56 |
gfz | gfz 1137 |   45   32   79 |   23   11   39 |   21   20   40 |
igr | igr 2061 |   43   25   83 |   20   13   35 |   30   19   65 |
igs | igs 2400 |   43   20   70 |   24   12   39 |   26   16   45 |
jpl | jpl 2382 |   45   21   71 |   24   13   40 |   27   16   45 |

Table 5.0890.5   GPS week: 0890   Day: 5   MJD: 50479.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |    0    0    0 |   28   27   81 |   23   14   39 |
emr | emr 2291 |    0    0    0 |   27   28   82 |   23   15   44 |
esa | esa 2233 |    0    0    0 |   28   28   79 |   30   15   42 |
gfz | gfz 1172 |    0    0    0 |   34   28   99 |   28   14   49 |
igr | igr 2369 |    0    0    0 |   27   27   81 |   26   14   43 |
igs | igs 2399 |    0    0    0 |   27   27   81 |   24   13   41 |
jpl | jpl 2383 |    0    0    0 |   27   27   82 |   24   13   40 |

Table 5.0890.6   GPS week: 0890   Day: 6   MJD: 50480.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   37   33   80 |   31   38  100 |   24   14   39 |
emr | emr 2390 |   37   34   84 |   32   38   99 |   25   14   41 |
esa | esa 2209 |   30   33   90 |   35   41  100 |   30   18   43 |
gfz | gfz 1180 |   41   39   93 |   42   50  127 |   30   14   43 |
igr | igr 2372 |   39   31   84 |   33   37   96 |   26   14   41 |
igs | igs 2400 |   38   34   81 |   32   38   98 |   25   13   40 |
jpl | jpl 2384 |   38   34   82 |   32   39   97 |   26   14   41 |

[Mailed From: Yves Mireault <[email-masked]>]