Subject: [IGSREPORT-3205] Wk 0879 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Tue, 26 Nov 1996 6:30:54 PST

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IGS Electronic Report    Tue Nov 26  6:30:54 PST 1996      Message Number 3205
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0879 IGS Final Orbits

Final IGS Orbit Combination - Week 0879   (Nov 10, 1996 - Nov 16, 1996)

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 (IGS08797.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, Springer, 1993, Combining orbits of the IGS processing
   centres, in IGS Analysis Centre Workshop, October 12-14, Ottawa, pp 19-55.

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:

 IGS08790-6.SP3  IGS GPS ephemeris files for days 0-6, week 0879 in SP3 format.
 IGS08797.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08797.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
                  ----+--------+---------------
                   6  |  ESA   |  ALL

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
                  ----+--------+---------------
                   0  |  EMR   |  ALL (high X-Rotations)
                   6  |  SIO   |  ALL (high XYZ-Rotations)
                   6  |  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 (Nov 11) | 00:00:00 |  10   |   All    | Modeling problems
          1 (Nov 11) | 12:00:00 |  1,9  |   All    | Modeling problems
          2 (Nov 12) | 00:00:00 |  23   |   All    | Modeling problems
          6 (Nov 16) | 00:00:00 |  14   |   All    | Modeling problems

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 (IGS08797.SUM).

Table 1: Week 0879 summary.                       (Nov 10, 1996 - Nov 16, 1996)

Table 1.0879.a   GPS week: 0879   MJD: 50397.0-50403.0

         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  82 | .01  .02  .00  -.40  -.09   .14  -.2  .07  .06 |    5.4   -4.1    1.3
        | .00  .00  .00   .14   .11   .18   .1           |   12.9   21.0
emr  29 | .00 -.01  .00   .51  -.11   .25  -.2  .09  .09 |  559.7   17.2     .6
        | .00  .00  .01   .41   .35   .16   .1           |   52.7   19.9
esa  60 | .01  .00  .00   .25  -.02   .29   .1  .14  .08 |   11.1   13.5    1.8
        | .00  .01  .01   .16   .12   .16   .1           |   17.4   20.9
gfz  47 | .00 -.03 -.01   .11   .05  -.14  -.2  .08  .07 |  561.3   17.4     .6
        | .01  .00  .00   .12   .09   .17   .1           |   52.6   19.7
igr  n/a| .01 -.01  .00  -.12   .03   .01  -.1  .09  .08 |    1.5   -3.8     .8
        | .01  .01  .01   .26   .28   .19   .1           |    1.9    3.0
jpl  37 | .00  .01  .00  -.01  -.19   .02   .3  .06  .06 |  561.3   16.9     .6
        | .00  .01  .00   .14   .17   .14   .0           |   52.6   20.0
ngs  49 | .00 -.05 -.01   .22   .20  -.27   .0  .15  .14 |    7.6   -5.0   80.2
        | .01  .02  .02   .43   .19   .27   .1           |    7.4   16.5
sio  110|-.01  .02  .02  -.57   .81  -.12   .2  .09  .08 |     .0     .0     .0
        | .00  .00  .00   .57  1.21   .69   .2           |     .0     .0

Table 1.0879.b   GPS week : 0879   MJD: 50397.0-50403.0

         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  |   3   6   3   3   3   3   3 |
   2  |   3   3   3   3   3   3   3 |
   3  |   3   3   3   3   3   3   3 |
   4E |   4   4   4   5   4   4   5 |
   5  |   3   3   3   3   3   3   3 |
   6  |   3   3   3   3   3   3   3 |
   7  |   3   3   2   3   5   4   3 |
   9E |   4   5   3   3   3   3   3 |
  10  |   3   3   4   4   4   5   5 |
  14  |   3   2   2   2   3   3  18 | Modeling problems on day 6.
  15E |   4   3   4   4   4   4   4 |
  16  |   2   3   2   2   2   3   3 |
  17E |   4   3   5   3   3   3   4 |
  18  |   3   2   2   2   3   3   2 |
  19  |   8   3   3   3   3   3   3 |
  21  |   3   3   2   3   3   3   3 |
  22  |   3   3   3   3   4   3   4 |
  23  |   4   4   3   3   3   3   3 |
  24E |   5   4   4   4   4   5   6 |
  25E |   4   3   3   3   3   2   3 |
  26  |   3   2   3   3   3   3   4 |
  27E |   5   4   3   3   4   3   3 |
  29  |   3   3   3   3   3   3   4 |
  30  |   5   4   4   3   4   4   4 |
  31  |   3   3   3   3   3   3   3 |

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 2.0879.0   GPS week: 0879   Day: 0   MJD: 50397.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  84 | .00  .02  .00  -.19  -.21   .27  -.2  .06  .05 |   -6.5   15.7    1.4
emr  29 | .00  .00 -.01  1.43  -.88   .39  -.4  .10  .10 |  481.8   30.5     .5
esa  61 | .01 -.01  .00   .24  -.04   .42   .0  .11  .07 |    -.3   14.7    1.7
gfz  51 | .00 -.04 -.01   .26   .05  -.12  -.2  .07  .06 |  483.3   30.9     .5
igr  n/a| .02  .00  .01  -.48  -.16   .26   .0  .07  .07 |    1.1   -1.6    1.5
jpl  37 | .00  .01  .00  -.08  -.01   .11   .2  .06  .06 |  483.6   30.0     .6
ngs  49 | .01 -.02 -.03   .22   .15  -.10  -.2  .16  .16 |    1.9   11.4   79.9
sio  98 |-.01  .02  .02  -.32   .27  -.44   .2  .09  .08 |     .0     .0     .0

Table 2.0879.1   GPS week: 0879   Day: 1   MJD: 50398.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  85 | .01  .02  .00  -.24  -.08   .36  -.2  .08  .06 |   -7.5    9.5    1.2
emr  31 | .00  .00 -.02   .34  -.13   .09  -.3  .09  .08 |  500.1   39.4     .5
esa  61 | .00 -.01 -.01   .14  -.06   .20   .0  .09  .07 |   12.8   40.5     .9
gfz  50 |-.01 -.03 -.01   .24  -.09  -.26  -.3  .08  .07 |  502.0   39.2     .5
igr  n/a| .02 -.01  .01  -.05   .03  -.02   .0  .08  .08 |     .9   -1.9     .6
jpl  37 | .00  .01  .00  -.13   .02   .27   .3  .07  .07 |  501.7   39.1     .5
ngs  51 | .01 -.02 -.01  -.41   .40   .19   .1  .14  .14 |    2.2   11.2   79.4
sio  117|-.01  .02  .03  -.16   .25  -.79   .4  .07  .06 |     .0     .0     .0

Table 2.0879.2   GPS week: 0879   Day: 2   MJD: 50399.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  83 | .01  .02  .00  -.40   .05   .36  -.1  .06  .06 |   22.3  -35.7    1.2
emr  29 | .00 -.01 -.01   .40  -.09   .34  -.2  .08  .08 |  552.9   -8.4     .7
esa  62 | .00  .00  .00   .39  -.17   .19   .0  .07  .07 |   39.3   -5.1     .9
gfz  48 | .00 -.03 -.02   .10   .05   .02  -.3  .07  .07 |  554.5   -7.9     .6
igr  n/a| .00 -.02 -.01  -.08   .17  -.17  -.2  .06  .05 |   -1.4   -9.9     .5
jpl  37 | .00  .01  .00  -.04  -.15  -.08   .3  .06  .06 |  554.8   -9.2     .6
ngs  49 | .02 -.05  .01   .01   .47  -.34  -.2  .15  .15 |   15.9  -24.3   80.7
sio  112|-.01  .02  .03  -.39   .21  -.65   .2  .07  .07 |     .0     .0     .0

Table 2.0879.3   GPS week: 0879   Day: 3   MJD: 50400.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .01  .01  .00  -.43   .00   .08  -.3  .05  .06 |   17.8  -17.5    1.2
emr  29 |-.01  .00 -.01   .43   .06   .29  -.3  .10  .10 |  570.2   10.2     .6
esa  60 | .00  .00  .00   .29  -.02   .52   .2  .08  .08 |   -2.7    -.2    2.2
gfz  47 | .00 -.03 -.01   .14  -.05  -.24  -.2  .08  .07 |  571.8   10.5     .6
igr  n/a| .00 -.02  .01   .19   .05   .00  -.2  .05  .04 |    2.9   -2.2     .7
jpl  37 | .00  .01  .00   .04  -.18   .03   .2  .06  .06 |  571.6   10.3     .6
ngs  51 |-.01 -.05  .01   .05  -.01  -.33   .0  .13  .13 |   12.9  -13.4   79.6
sio  107|-.01  .02  .02  -.27   .22  -.37   .3  .08  .08 |     .0     .0     .0

Table 2.0879.4   GPS week: 0879   Day: 4   MJD: 50401.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .01  .02  .00  -.46   .00   .00  -.2  .06  .06 |    5.3    8.2    1.4
emr  25 | .00  .00  .00   .40   .12  -.02   .0  .11  .11 |  579.4   27.5     .6
esa  59 | .01 -.01 -.01   .16   .21   .43   .1  .09  .08 |   19.4   12.3    1.1
gfz  42 | .00 -.02 -.01   .12   .10   .14  -.2  .08  .07 |  581.4   27.2     .6
igr  n/a| .01 -.01 -.02   .12   .54  -.15  -.1  .16  .13 |    2.4   -3.2     .7
jpl  37 | .00  .01  .00   .25  -.47  -.10   .3  .05  .05 |  580.9   27.6     .5
ngs  45 |-.01 -.09 -.02   .11   .07  -.67   .2  .16  .15 |    8.6   -4.2   80.2
sio  110|-.01  .02  .02  -.47   .40  -.03   .3  .07  .07 |     .0     .0     .0

Table 2.0879.5   GPS week: 0879   Day: 5   MJD: 50402.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  78 | .00  .02  .00  -.52  -.19  -.05  -.2  .07  .07 |   14.1  -23.5    1.3
emr  29 | .00  .00  .00   .32   .05   .27  -.2  .09  .09 |  616.3   -9.6     .8
esa  59 | .01  .00  .01   .02  -.05   .23   .3  .08  .08 |   21.0   -9.7    1.4
gfz  46 |-.01 -.03 -.01   .02   .08  -.13  -.1  .09  .08 |  617.8   -9.2     .7
igr  n/a| .01  .00 -.01  -.09  -.36  -.13  -.2  .07  .06 |    4.5   -5.8     .5
jpl  37 | .00  .01  .00   .05  -.34  -.13   .2  .06  .06 |  618.0  -10.0     .8
ngs  49 | .01 -.05 -.01   .90   .01  -.26   .0  .12  .12 |   14.9  -26.0   80.8
sio  112|-.01  .02  .02  -.55   .81   .20   .1  .10  .09 |     .0     .0     .0

Table 2.0879.6   GPS week: 0879   Day: 6   MJD: 50403.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  80 | .01  .02  .01  -.58  -.19  -.01  -.2  .07  .06 |   -7.7   14.9    1.1
emr  32 | .00 -.01  .01   .22   .09   .39  -.1  .07  .07 |  617.0   30.6     .5
esa  58 | .01  .01  .00   .50  -.04   .09   .2  .31  .08 |  -12.0   42.2    3.2
gfz  45 |-.02 -.02 -.02  -.07   .18  -.36  -.1  .08  .07 |  618.5   31.1     .5
igr  n/a| .01  .01  .00  -.44  -.07   .28  -.1  .08  .06 |     .2   -2.1     .6
jpl  37 | .00  .03  .00  -.19  -.18   .06   .3  .08  .08 |  618.7   30.2     .5
ngs  48 | .00 -.06  .01   .66   .30  -.39  -.1  .16  .16 |   -3.3    9.9   80.6
sio  112| .00  .02  .02 -1.82  3.51  1.22  -.1  .11  .11 |     .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 3.0879.0   GPS week: 0879   Day: 0   MJD: 50397.0

               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  11   7   6   7   4  12   7    3 |   15  14  10  10  11   7  11   8    8
   2  |   5   5   4   6   4   5  13   8    3 |    6  12   5   9   9   4  14   8    5
   3  |   4  11  11   5   8   6  12   8    3 |    4  12  11   7  13   6  12  10    6
   4E |   7  10   9   7   8   6  19  10    4 |    6  17  11  14   9   6  20   7    7
   5  |   8   9   6   8   6   6  15   6    3 |   16  20  19  20  20  17  22  17   18
   6  |   4   7   6   6   3   4  10   7    3 |    5  13   7  10  10   4  11   9    6
   7  |   5   5   6   9   5   4  14   7    3 |    5  10   7   9   7   3  14   9    6
   9E |   9  11   7   8   9   5  22  11    4 |    9  14  15  16  12   9  20   8   11
  10  |   5  12   9   4   7   9  14   6    3 |    0   5   1   1   2   3   2   2    1
  14  |   3   7   6   5   6   4   8  10    3 |    4   8   6   7   7   5  10   9    4
  15E |   4  16   6   7  12   4  24   7    4 |    8  14  13  12  14   8  19  10    9
  16  |   4   9   4   6   5   4   7   7    2 |    4   8   7   7   7   6  10   8    6
  17E |   7   8   5   7   9   5  12  18    4 |   13  17  16  16  13  13  20  26   14
  18  |   4   7   6   6   5   4   9  11    3 |    5  14   8  10  10   5  12  14    8
  19  |   6 ---  34   9  11   8  15 ---    8 |    7 ---  19  12  14   6  17 ---    9
  21  |   5   9   5   5   6   4  11   8    3 |    6  16   8   8   6   7  11  11    7
  22  |   5   8  10   5   5   5  20   6    3 |    4  12   9  10   8   5  19   7    7
  23  |   9  14  10   6   7   7  21  13    4 |   14  21  12  13  14  13  11  18   13
  24E |   9  12   9   8   7   9  26  11    5 |    4  17   8  10   8   8  22   8    5
  25E |   5   9  17   8   8   5  15  12    4 |    6  12  10   9  10   7  12   6    6
  26  |   8   7   7   5   6   6  17   6    3 |   19  24  22  19  23  16  23  23   19
  27E |   6  11  20   9   8   7  13   9    5 |   10  13  13  18  19  11  19  10   11
  29  |   5   9   7   6   6   3  16   8    3 |    5  15   5  12   8   6  20  10    7
  30  |   8   9  10  10   9  10  24   8    5 |   13  17  16  16  17  15  23  14   13
  31  |   4   9   7   6  10   5  11   5    3 |    4   9   9   6  11   7  14   8    6
------|--------------------------------------|--------------------------------------
 RMS  |   6  10  11   7   7   6  16   9      |T   9  14  11  12  12   8  16  12    9
 WRMS |   5  10   7   6   7   6  16   8      |NE  9  14  11  11  12   8  15  11    9
 MEDI |   5   9   7   6   7   5  14   8      |MD  6  14  10  10  10   7  14   9    7

Table 3.0879.1   GPS week: 0879   Day: 1   MJD: 50398.0

               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  |  28  15   8  11  11  10  21  11    6 |   37  17  21  17  15  18  24  20   17
   2  |   5   7   5   7   6   7  14   4    3 |    5   8   5  10   7   7  13   6    5
   3  |   7  10  10   5   5   5  10   6    3 |    4  13   9   7   8   5  12   6    4
   4E |  10  11   7   9  11   7  13   7    4 |    4  14   9  14  11   5  17   6    7
   5  |   9   7   5   9   6   8  12   7    3 |   28  32  32  34  30  29  24  27   29
   6  |   4   6   5   7   5   7  16   7    3 |    3   9   9   9  11   5  17   7    5
   7  |   7   6   4  10   7   6   8   7    3 |    3   7   5  12   6   5  10   4    4
   9E |  12   9  15  11   8   8  16  10    5 |    8  12  16  19  11  14  19  17   13
  10  |   5   6  10   8   8  11  11   7    3 |    4   9  13   8   8  12  12   5    6
  14  |   4   7   6   5   5   6   7   6    2 |    3   7   6   7   7   5   8   5    3
  15E |   5  10   8   8  11   6  17   7    3 |    6  13  10  11  13   6  17   8    7
  16  |   5   6   5   7   7   5   9   8    3 |    5   9   6   7   8   4  10   8    4
  17E |   6   7   7   6   5   5  13   7    3 |   11  17  14  13  14   9  17   8   10
  18  |   5   4   9   5   6   4   6   6    2 |    5   7   8   7   9   4   7   9    4
  19  |   5   7  11   4  11   6  15 ---    3 |    6  10  15   8  10   5  17 ---    8
  21  |   5  12   5   7   6   7  15   5    3 |    5  13   7   9  10   7  17   6    7
  22  |   5   8   8   7   6   4  19   6    3 |    3   9   8  11  12   5  18   7    6
  23  |  10  12   9   7   8   8  14   8    4 |   16  16  15  16  18  17  13  12   14
  24E |   6   9   8   8  15   7  17  13    4 |    4  11   9  10  10   6  23  10    5
  25  |   6   9   9   9  11   6  15   4    3 |    5  14   9  10  14   8  21   9    8
  26  |   5   5   9   5   5   5   7   5    2 |   21  25  24  27  23  24  31  23   23
  27E |   6   8  17   6  11   6  15   7    4 |    6  10  14  13  13   8  17  10    8
  29  |   4   9   7   4   4   4  19   8    3 |    4   8   7   9   8   6  11   6    5
  30  |   6  11   6   8  11  10  13   9    4 |   26  31  30  32  32  27  30  26   27
  31  |   7   7   7   8  10   6  14   5    3 |    4  10   8   6  12   5  14   5    3
------|--------------------------------------|--------------------------------------
 RMS  |   8   9   9   8   8   7  14   7      |T  12  14  14  15  14  12  17  12   11
 WRMS |   6   8   7   7   8   7  14   6      |NE 14  15  14  15  15  13  17  12   12
 MEDI |   6   8   8   7   7   6  14   7      |MD  5  11   9  10  11   6  17   8    7

Table 3.0879.2   GPS week: 0879   Day: 2   MJD: 50399.0

               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  |  10   6   7   6   6   3  11   6    3 |    5   8   5   8   6   4   9   4    3
   2  |   5   7   4   8   4   6  14   6    3 |    5   8   7  10   8   6  13   9    5
   3  |   6   7  11   4   4   5  11   5    3 |    4   9  12   8   9   5  13   7    6
   4E |   9  11   7   8  12   6  14   8    4 |    5  14  11  13  11   4  19   6    7
   5  |   6   8   6   9   8   6  12   7    3 |   11  17  12  14  11  12  13  11   12
   6  |   4   6   7   7   5   4  14   8    3 |    4   8  10   9   9   4  13   8    5
   7  |   5   5   4   7   5   4  10   8    2 |    5   6   6   9   8   4  12   7    4
   9  |   5   5   8   5   5   6  20   7    3 |    4   8  12   8   9   5  18   8    5
  10  |   8   7  10  11   5  10   9   8    4 |    3   6   7  12   6  13  12   6    6
  14  |   4   5   8   3   4   5  11   6    2 |    4   7   7   6   6   6  11   6    4
  15E |   7   9   7  13   5   8  19   7    4 |    6  11  14  16  12   7  22  10    8
  16  |   5   5   5   5   4   5  11   7    2 |    5   8   7   8   8   7  13   7    6
  17E |   8  22   6   8   6   7  15   8    5 |   10  24  15  12  13   7  16  13   10
  18  |   5   3   8   5   2   3   7   7    2 |    5   7   9   7   7   4   9   8    5
  19  |   6   9  10   5   6   4  17   6    3 |    7  12  10  10  12   7  18   7    8
  21  |   5   8   5   5   4   4   8   7    2 |    4   9   7   8   5   4   9   6    5
  22  |   7   6   6   8   5   5  23   9    3 |    4  10  10  16  12   5  23  10    8
  23  |   5   6   6   7   9   6  13   7    3 |   10   8  10   8   8   8   6   9    7
  24E |   8  10  10   7   7   7  27   9    4 |    4  15  10  12  11   5  33   7    7
  25  |   6   6   5   9   5   5  13   6    3 |    4  11   6  11  10   6  17   5    6
  26  |   7   6   8   6   3   6  17   7    3 |   12  14  14  14  12  14  18  13   13
  27  |   4   9   9   8   6   6  14   8    3 |    6  12   7  10   9   7  17  10    6
  29  |   4   4   5   5   5   3  18   9    3 |    5   7   5   5   6   4  14   8    3
  30  |   6  10   7   8  10  10  21   9    4 |   12  15  15  16  17  14  21  14   13
  31  |   6   7   7  10   6   5  14   5    3 |    4   9   9   6   9   4  15   7    5
------|--------------------------------------|--------------------------------------
 RMS  |   6   8   7   7   6   6  15   7      |T   6  11   9  10   9   7  16   8    7
 WRMS |   6   8   7   7   5   6  15   7      |NE  6   9   9  10   9   7  14   8    7
 MEDI |   6   7   7   7   5   5  14   7      |MD  5   9  10  10   9   6  14   8    6

Table 3.0879.3   GPS week: 0879   Day: 3   MJD: 50400.0

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

Table 3.0879.4   GPS week: 0879   Day: 4   MJD: 50401.0

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

Table 3.0879.5   GPS week: 0879   Day: 5   MJD: 50402.0

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

Table 3.0879.6   GPS week: 0879   Day: 6   MJD: 50403.0

               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   4   8   7   5   3  11   8    3 |    3   7   8  10  10   5  10   7    6
   2  |   5   7   9   8   4   6   9   7    3 |    6  10   7  11   8   7  12   9    8
   3  |   6   6  11   6   9   7   7  14    3 |    5   7   9  10  11   5  15   8    8
   4E |   9   8  11  13   4   8  11  11    5 |    9  22  14  25  13  11  17  14   15
   5  |   7   8   6  10   6   6   8   9    3 |   14  17  15  20  19  13  21  13   16
   6  |   5   6   9   6   5   6  12  11    3 |    4   7   7  11  10   6  12   8    8
   7  |   5   5   9  10   7   5  13   7    3 |    4   9   8  11   9   4  14   8    7
   9  |   6   5   5   7   7   7  16  12    3 |    6   9   9  10   8   5  18   7    6
  10  |   5  10   8 ---   7  15  14   9    5 |    4  12   6 ---   8  15  11   6    4
  14  |  16 --- 150 ---  25  23  47  25   18 |   29 ---   3 ---  25  24  32  24   27
  15E |   6   9  15   6   3   9  15   8    4 |    8  12  17  16  12  10  22  12   10
  16  |   6   7   4   5   3   5  11   6    3 |    4  11   8   9   8   6  12   8    6
  17E |   6  10   8   8   7   7  14   9    4 |   13  19  14  19  15  11  22  13   14
  18  |   5   5   7   3   5   4   8   5    2 |    6   8   9   9   8   5  12   8    7
  19  |   5   6   8   6   7   5  16   9    3 |    6  11  10  11   8   7  15  11    8
  21  |   5   8   8   9   5   4  10   9    3 |    5   8   9   9   9   6  14  10    6
  22  |   7   6   6   7   5   7  21  11    4 |    4  10   9  12  10   5  20  11    9
  23  |   7   6   7   8   4   6  13  13    3 |   10   8   9  10  10   8   9  11    8
  24E |  11  12  10 ---   5   8  16  11    6 |    7  17   9 ---   9   7  19   9    8
  25  |   4   6  10   9   4   5  13   7    3 |    5   8   6  11   7   7  10   6    6
  26  |   9   5  10  12   3   8  10   7    4 |    9  14  12  13  14  12  16  14   13
  27  |   4   7  11   5   5   4  12  11    3 |    6  10   8  11   9   7  17   9    8
  29  |   7   7  12   6   5   3  24   9    4 |    6  11  13   9   9   5  28  10    7
  30  |   7   9   7  11   5  12  12  11    4 |   12  18  16  22  17  15  29  13   16
  31  |   7   7   6   7  17   7  13  14    3 |    4   9  10   8  20   5  16  10    8
------|--------------------------------------|--------------------------------------
 RMS  |   7   7  31   8   8   8  16  11      |T   9  12  10  13  12   9  17  10   10
 WRMS |   6   7   8   7   6   8  15  11      |NE  9  10   9  11  12   9  17  10   10
 MEDI |   6   7   8   7   5   6  13   9      |MD  6  10   9  11  10   7  16  10    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 4.0879   GPS week: 0879   MJD: 50397.0-50403.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2390 |U  46   31   78 |U  48   30   85 |   33   21   53 |
emr | emr 2290 |   38   24   71 |   32   21   54 |U  32   16   46 |
esa | esa 1794 |   39   25   73 |U  41   27   79 |   35   19   49 |
gfz | gfz 1167 |   37   25   77 |U  41   23   79 |   30   17   47 |
igr | igr 2201 |   38   24   74 |   45   22   81 |   30   17   45 |
igs | igs 2399 |   38   25   71 |   40   21   71 |   28   16   43 |
jpl | jpl 2381 |U  37   22   61 |U  39   21   70 |   28   15   44 |

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 5.0879.0   GPS week: 0879   Day: 0   MJD: 50397.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   42   30   70 |   46   26   69 |   28   21   47 |
emr | emr 2102 |   38   26   65 |   42   20   56 |   43   17   53 |
esa | esa 1511 |   34   22   70 |   28   18   65 |   47   18   51 |
gfz | gfz 1187 |   27   24   71 |   38   20   48 |   19   15   37 |
igr | igr 1644 |   37   20   70 |   36   19   54 |   22   14   40 |
igs | igs 2400 |   33   25   66 |   33   18   51 |   20   13   35 |
jpl | jpl 2382 |   35   22   61 |   33   17   50 |   20   13   35 |

Table 5.0879.1   GPS week: 0879   Day: 1   MJD: 50398.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   47   27   73 |   39   36  108 |   39   20   59 |
emr | emr 2300 |   40   20   75 |   35   25   56 |   25   15   51 |
esa | esa 2065 |   45   25   68 |   37   31   96 |   40   20   54 |
gfz | gfz 1190 |   43   25   65 |   30   23  120 |   45   19   65 |
igr | igr 2380 |   42   23   75 |   33   28   88 |   38   18   56 |
igs | igs 2400 |   43   23   69 |   31   26   94 |   37   17   52 |
jpl | jpl 2381 |   41   19   66 |   30   25   94 |   36   15   51 |

Table 5.0879.2   GPS week: 0879   Day: 2   MJD: 50399.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |   47   32   85 |    0    0    0 |   37   19   52 |
emr | emr 2397 |   35   28   72 |    0    0    0 |   37   16   44 |
esa | esa 1674 |   35   25   63 |    0    0    0 |   37   19   48 |
gfz | gfz 1190 |   37   30   90 |    0    0    0 |   44   18   42 |
igr | igr 2369 |   36   27   73 |    0    0    0 |   37   18   42 |
igs | igs 2400 |   36   27   75 |    0    0    0 |   35   16   42 |
jpl | jpl 2384 |   34   25   51 |    0    0    0 |   35   18   43 |

Table 5.0879.3   GPS week: 0879   Day: 3   MJD: 50400.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2375 |    0    0    0 |    0    0    0 |   28   19   49 |
emr | emr 2301 |    0    0    0 |    0    0    0 |   27   14   40 |
esa | esa 1903 |    0    0    0 |    0    0    0 |   21   17   34 |
gfz | gfz 1188 |    0    0    0 |    0    0    0 |   20   18   31 |
igr | igr 2400 |    0    0    0 |    0    0    0 |   21   15   39 |
igs | igs 2400 |    0    0    0 |    0    0    0 |   21   14   34 |
jpl | jpl 2383 |    0    0    0 |    0    0    0 |   21   14   37 |

Table 5.0879.4   GPS week: 0879   Day: 4   MJD: 50401.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2366 |   49   33   84 |   63   11   62 |   26   20   48 |
emr | emr 2387 |   40   22   73 |    7    2   28 |   19   14   38 |
esa | esa 1750 |   41   26   87 |   61   16   88 |   23   18   40 |
gfz | gfz 1188 |   39   22   80 |   56   14   74 |   17   12   44 |
igr | igr 1850 |   36   24   77 |   76    8  124 |   24   20   42 |
igs | igs 2397 |   39   24   75 |   62   11   81 |   18   14   39 |
jpl | jpl 2379 |   38   23   64 |   60   12   78 |   17   14   40 |

Table 5.0879.5   GPS week: 0879   Day: 5   MJD: 50402.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |    0    0    0 |   47   37   91 |   31   23   57 |
emr | emr 2359 |    0    0    0 |   31   25   55 |   28   15   47 |
esa | esa 1740 |    0    0    0 |   36   32   66 |   32   21   55 |
gfz | gfz 1176 |    0    0    0 |   43   28   67 |   20   21   59 |
igr | igr 2391 |    0    0    0 |   34   25   55 |   28   18   49 |
igs | igs 2399 |    0    0    0 |   34   25   56 |   27   18   48 |
jpl | jpl 2383 |    0    0    0 |   35   25   56 |   27   15   46 |

Table 5.0879.6   GPS week: 0879   Day: 6   MJD: 50403.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2394 |    0    0    0 |   41   30   85 |   36   22   56 |
emr | emr 2185 |    0    0    0 |   33   24   64 |   40   20   48 |
esa | esa 1914 |    0    0    0 |   34   33   73 |   36   20   55 |
gfz | gfz 1051 |    0    0    0 |   32   25   69 |   31   14   45 |
igr | igr 2376 |    0    0    0 |   27   22   61 |   32   15   48 |
igs | igs 2394 |    0    0    0 |   28   23   63 |   31   18   50 |
jpl | jpl 2374 |    0    0    0 |   27   22   61 |   32   16   50 |

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