Subject: [IGSREPORT-3178] Wk 0878 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Tue, 19 Nov 1996 8:03:29 PST

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IGS Electronic Report    Tue Nov 19  8:03:29 PST 1996      Message Number 3178
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0878 IGS Final Orbits

Final IGS Orbit Combination - Week 0878   (Nov 03, 1996 - Nov 09, 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 (IGS08787.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:

 IGS08780-6.SP3  IGS GPS ephemeris files for days 0-6, week 0878 in SP3 format.
 IGS08787.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08787.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
                  ----+---------
                  0-1 |  15 28 
                  2-6 |  15 

6. PRN28 was set unusable from wk878 day 1 (Nov 04, 1996) at 16:34 until 
   further notice (ref. NANU 179-96309).

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
                  ----+--------+---------------
                  0-3 |  SIO   |  ALL (High Z-Rotations)
                  4-6 |  SIO   |  ALL (High XYZ-Rotations)

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
         ------------+----------+-------+----------+-------------------
          3 (Nov 06) | 00:00:00 |  19   |   ALL    | Modeling problems (a)
          4 (Nov 07) | 00:00:00 |  14   |   ALL    | Modeling problems (b)
          4 (Nov 07) | 00:00:00 |  29   |   ALL    | Modeling problems

  (a) Due to unrealistic long arc RMS, PRN19 was excluded from the long arc
      evaluation on day 6 for ACs that submitted solutions for this satellite;

  (b) Due to unrealistic long arc RMS, PRN14 was excluded from the long arc
      evaluation on days 0 and 6 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 (IGS08787.SUM).

Table 1: Week 0878 summary.                       (Nov 03, 1996 - Nov 09, 1996)

Table 1.0878.a   GPS week: 0878   MJD: 50390.0-50396.0

         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  81 | .00  .02  .01  -.30   .08   .24   .0  .08  .06 |   -5.2    3.7    1.3
        | .01  .00  .01   .08   .10   .15   .1           |    4.3    7.9
emr  29 |-.01 -.01 -.01   .21  -.31   .28  -.1  .11  .10 |  377.7   28.9     .5
        | .01  .01  .00   .18   .11   .19   .1           |   55.3    7.3
esa  59 | .00  .00  .01   .07  -.08   .09   .2  .08  .07 |  -15.5   23.3     .8
        | .00  .00  .01   .12   .21   .25   .1           |    9.2   14.0
gfz  45 | .00 -.02 -.01   .00   .11  -.35  -.2  .08  .07 |  379.5   28.9     .5
        | .01  .01  .01   .13   .10   .12   .1           |   55.3    7.0
igr  n/a| .01 -.01  .00  -.14  -.06  -.16   .1  .08  .07 |    -.1     .3     .7
        | .01  .02  .01   .07   .21   .27   .1           |    2.0    2.6
jpl  37 | .00  .02  .01  -.14  -.05  -.02   .2  .08  .08 |  379.3   28.6     .5
        | .00  .01  .00   .16   .09   .11   .1           |   55.3    7.3
ngs  49 | .01 -.04 -.01   .42   .30  -.22   .0  .14  .14 |   -5.2    5.1   80.5
        | .01  .01  .01   .26   .26   .19   .1           |    6.6    8.0
sio  114|-.02  .02  .02 -1.23   .82 -6.11   .2  .15  .13 |     .0     .0     .0
        | .02  .00  .01  1.13   .58  5.98   .2           |     .0     .0

Table 1.0878.b   GPS week : 0878   MJD: 50390.0-50396.0

         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   4   5   4   3 |
   2  |   3   3   3   4   3   3   3 |
   3  |   3   3   3   6   3   3   3 |
   4E |   4   4   4   4   4   4   4 |
   5  |   3   3   4   3   4   3   4 |
   6  |   4   3   4   5   3   3   3 |
   7  |   3   3   3   4   3   3   4 |
   9E |   5   4   4   6   5   4   4 |
  10  |   4   3   3   3   4   4   4 |
  14  |  12   3   3   7   2  16   2 | Modeling problems on days 0 and 5.
  15E |   5   4   3   5   4   3   4 |
  16  |   3   3   3   3   3   4   3 |
  17E |   3   3   3   5   3   4   3 |
  18  |   3   2   3   4   2   3   3 |
  19E |   5   7   6   8   6   8   6 |
  21  |   3   3   3   3   2   3   3 |
  22  |   3   3   4   5   3   4   3 |
  23  |   4   4   4   4   3   4   4 |
  24E |   3   4   3   3   4   4   4 |
  25E |   6   5   6   6   4   4   4 |
  26  |   3   4   3   3   4   3   3 |
  27E |   5   4   4   5   4   4   4 |
  28  |   3   7 --- --- --- --- --- | See Remark #6
  29  |   4   2   3  23   4   4   3 | Modeling problems on day 3.
  30  |   5   5   4   5   5   6   5 |
  31  |   3   3   3   4   4   4   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 2.0878.0   GPS week: 0878   Day: 0   MJD: 50390.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .02  .01  -.41  -.05   .43   .1  .08  .06 |   -9.3    4.1    1.3
emr  28 |-.01 -.02  .00   .47  -.33   .32  -.3  .11  .11 |  300.9   27.8     .6
esa  58 | .00  .01  .01   .05  -.15  -.20   .2  .08  .07 |  -15.3   25.8    1.0
gfz  45 | .00 -.02 -.01  -.12   .03  -.24  -.2  .08  .06 |  302.6   28.0     .5
igr  n/a| .01  .00  .00  -.27   .10  -.23   .0  .06  .04 |     .0     .4     .6
jpl  37 | .00  .03  .01  -.23   .00   .00   .1  .08  .08 |  302.5   27.4     .5
ngs  50 | .01 -.04 -.02   .86   .58  -.43  -.2  .16  .16 |  -11.5   11.7   78.5
sio  115|-.01  .02  .02  -.36   .49 -1.15   .3  .12  .11 |     .0     .0     .0

Table 2.0878.1   GPS week: 0878   Day: 1   MJD: 50391.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .01  .03  .01  -.20   .08   .48   .0  .07  .06 |   -3.8   -1.8    1.4
emr  31 |-.01 -.01 -.01   .29  -.20   .30  -.1  .08  .07 |  329.5   27.5     .5
esa  60 | .00  .00  .00  -.10  -.07  -.10   .3  .08  .08 |   -5.1   34.6     .6
gfz  45 | .00 -.03 -.01  -.01   .21  -.56  -.2  .09  .08 |  331.1   27.5     .5
igr  n/a| .01 -.04  .00  -.19  -.42  -.68   .2  .13  .12 |    -.9    1.5     .9
jpl  37 | .00  .01  .01  -.20  -.08  -.09   .2  .07  .07 |  331.1   27.1     .4
ngs  48 | .01 -.04 -.01   .43   .34  -.19   .0  .13  .13 |   -5.4    4.9   82.2
sio  113| .00  .03  .03  -.21   .45 -1.70   .2  .10  .11 |     .0     .0     .0

Table 2.0878.2   GPS week: 0878   Day: 2   MJD: 50392.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .02  .00  -.31   .09   .21   .0  .07  .06 |   -6.0     .4    1.3
emr  30 |-.01 -.02 -.01   .31  -.17   .58   .0  .09  .09 |  348.2   34.0     .5
esa  59 | .00  .00  .01   .24  -.04   .03   .3  .09  .08 |  -23.6   25.2     .8
gfz  46 | .00 -.02 -.01  -.19   .08  -.42  -.3  .08  .07 |  350.1   33.7     .4
igr  n/a| .01  .01  .00  -.06  -.02  -.01   .1  .06  .05 |   -3.7    4.4     .5
jpl  37 | .00  .03  .00  -.08   .01  -.03   .2  .07  .07 |  349.7   33.8     .5
ngs  51 | .01 -.04  .00   .26  -.07  -.19  -.1  .12  .12 |  -10.4   13.0   78.3
sio  116|-.01  .02  .02  -.44   .22 -1.20   .2  .09  .09 |     .0     .0     .0

Table 2.0878.3   GPS week: 0878   Day: 3   MJD: 50393.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .02  .01  -.35   .25   .15  -.1  .11  .07 |  -11.1   20.8    1.2
emr  29 |-.01 -.02 -.01  -.11  -.46   .01  -.3  .15  .15 |  372.5   39.3     .6
esa  57 | .00  .00  .02   .14  -.51  -.07   .1  .10  .08 |  -25.0   37.1    1.0
gfz  43 | .00 -.01 -.02   .11   .26  -.22  -.2  .08  .07 |  374.5   38.6     .5
igr  n/a| .01  .00  .00  -.15   .21  -.15   .1  .09  .07 |    2.0   -1.0     .7
jpl  37 | .01  .03  .01   .18   .07   .22   .4  .13  .14 |  374.3   38.8     .6
ngs  48 | .00 -.03  .00   .11   .09   .08   .1  .16  .16 |   -6.3   10.6   79.8
sio  114|-.02  .02  .03  -.51   .34 -1.40   .5  .22  .14 |     .0     .0     .0

Table 2.0878.4   GPS week: 0878   Day: 4   MJD: 50394.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  79 | .00  .02  .00  -.33   .15   .15  -.1  .07  .07 |    2.0    -.7    1.5
emr  28 | .01 -.01 -.01   .21  -.35   .33   .0  .10  .10 |  413.3   22.8     .6
esa  59 | .01  .00  .01   .10  -.02   .17   .1  .08  .07 |  -14.9   32.8    1.0
gfz  43 |-.01 -.02  .00   .21   .07  -.25  -.2  .08  .07 |  414.9   22.8     .6
igr  n/a| .01 -.02  .00  -.14  -.06  -.20   .0  .07  .06 |     .7   -1.2     .7
jpl  37 | .00  .02  .01  -.22  -.03  -.06   .1  .07  .06 |  414.8   22.5     .6
ngs  50 | .02 -.02 -.02   .19   .08  -.34   .0  .13  .13 |    8.4  -10.2   81.5
sio  108|-.01  .02  .01 -1.72  1.31-11.24   .1  .14  .13 |     .0     .0     .0

Table 2.0878.5   GPS week: 0878   Day: 5   MJD: 50395.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  79 | .00  .03  .00  -.32   .02   .19   .0  .08  .07 |   -4.9    -.9    1.3
emr  26 |-.01 -.01 -.01   .17  -.29   .34   .1  .11  .10 |  428.7   17.7     .5
esa  59 | .00  .00  .01   .11   .07   .36   .3  .08  .08 |   -1.6    2.0     .8
gfz  45 |-.01 -.01  .00   .01  -.04  -.39  -.3  .07  .07 |  430.2   18.2     .5
igr  n/a| .00  .00  .00  -.06  -.20  -.06   .3  .09  .07 |    2.1   -3.7     .6
jpl  37 | .00  .02  .01  -.28  -.22  -.05   .2  .08  .09 |  430.2   17.4     .5
ngs  48 | .01 -.05 -.02   .45   .49  -.44   .0  .14  .14 |   -7.6    4.3   81.5
sio  112|-.02  .01  .01 -2.40  1.22-12.18   .1  .18  .17 |     .0     .0     .0

Table 2.0878.6   GPS week: 0878   Day: 6   MJD: 50396.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .02  .01  -.20  -.01   .09  -.2  .06  .06 |   -3.2    4.3    1.3
emr  28 | .01  .00  .00   .13  -.41   .08   .0  .08  .08 |  451.1   33.5     .5
esa  60 | .00  .00  .00  -.08   .14   .47   .1  .08  .07 |  -23.1    6.0     .6
gfz  48 |-.01 -.03  .00   .01   .15  -.38  -.2  .07  .07 |  452.8   33.4     .4
igr  n/a| .02  .01  .01  -.13  -.03   .20   .1  .07  .06 |    -.6    2.0     .7
jpl  37 | .00  .02  .00  -.16  -.08  -.12   .3  .07  .07 |  452.6   33.4     .5
ngs  49 | .01 -.04 -.02   .60   .58  -.06   .0  .14  .14 |   -3.6    1.1   81.8
sio  117|-.05  .02  .02 -2.99  1.70-13.93  -.2  .19  .16 |     .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 3.0878.0   GPS week: 0878   Day: 0   MJD: 50390.0

               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  |   7  15   7   7   3   5  17  15    4 |    4  18  13  10   8   5  19  11    8
   2  |   4  10   6   7   4   4   8   8    3 |    6  12  12  10  10   6  12   9    8
   3  |   6  10   6   4   4   6  14   8    3 |    4  10   8   8   8   5  11  10    6
   4E |   6  14   9   7   3   6  14   7    4 |    7  13  12   8  11   7  20   7    8
   5  |   5   8   5   9   5   6  10  10    3 |    5  10   9  10   9   6  14   7    7
   6  |   5  18   6   6   3   7   6  10    4 |    3  16   7  10   8   4  11   9    6
   7  |   6   8   7   7   3   6  13   6    3 |    5   8   8   8   6   6  13   8    5
   9E |   9  11   6  10   3   9  21  14    5 |    9  16  11  17  12   9  21  11   11
  10  |   8   6   5   4   4  16   8  12    4 |    4   6   8   5   7  18   7   9    6
  14  |  19 --- --- ---  25  21  36  27   12 |    0 --- --- ---   0   0   0   0  ---
  15E |   4   8  17  10   4   8  22   8    5 |   10  14  11  19  11   8  27   6   13
  16  |   4   9   5   4   3   4  11  13    3 |    7  10  11   9   9   7  14  11    7
  17  |   5  12   7   6   4   4   8   6    3 |    8  13   9  10  11   8  13   9    8
  18  |   5  11  10   4   3   2  10   5    3 |   10  11   9  10   9  12  14  15    9
  19E |  11  17  10  12   7   9  16  10    5 |   16  16  19  23  23  18  26  21   17
  21  |   4   8   4   6   4   4   9   9    3 |    4   9   9   7  10   5  13   9    6
  22  |   5   8   7   6   4   5  14  11    3 |    5  12   9  12  11   7  14   9    8
  23  |  10  10   4   9   4   9  17  15    4 |   14  10  12  10  12   9  15  16   10
  24E |   6  11   7   4   6   5  17   6    3 |    7  10  13   8  10   6  17   6    8
  25E |  12  11  13  14   6   9  31  14    6 |    7  11  11  16  14   7  29   7   10
  26  |   5   6   7   6   4   4  11  12    3 |    5   8  11   7   7   5  11   7    6
  27E |   7  15  18   9   3   8  11   9    5 |   10  15  11  16  13  11  17  13   12
  28  |   5  10   5   5   5   4  12   7    3 |    2  12   4   2   4   6   6   5    5
  29  |   5  19   8   5   6   4  21  10    4 |   13  22   5   6   7  13  22  12   11
  30  |   9  12   7  12   3  14  20  20    5 |   17  18  23  28  21  17  32  15   21
  31  |   6   9   3   6   4   6   9  11    3 |    5   9   8   7   7   5  10  11    5
------|--------------------------------------|--------------------------------------
 RMS  |   8  11   8   8   6   8  16  12      |T   8  12  11  12  11   9  17  10    9
 WRMS |   6  11   7   6   4   8  16  11      |NE  7  12  10  10   9   8  14  10    8
 MEDI |   6  10   7   6   4   6  14  10      |MD  7  12  11  10  10   7  14   9    8

Table 3.0878.1   GPS week: 0878   Day: 1   MJD: 50391.0

               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  10   5   7   5   5  11  10    3 |    4  12  12  10  12   6  12  10    6
   2  |   5   6   5  11  10   6  11  12    3 |    5   8  12   9  14   4  12  13    5
   3  |   4   6   7   9  16   5   9   7    3 |    3  10  11  11  17   5  12  11    4
   4E |   6  11  10   6  10   6  13  10    4 |    6  10  16   9  13   5  18   9    7
   5  |   5   7   7   9  11   6   6  10    3 |    5   7  12  12  13   5  12  12    5
   6  |   5   5   5   7  11   5  12   9    3 |    3  10   9  11  19   6  10  14    6
   7  |   4   5   4   7   9   4  10   8    3 |    4   7  10   8  12   3  13  12    5
   9E |   8  10   5  10  14   7  18  11    4 |    7  12  12  14  20   7  20  12    9
  10  |   6   6   6   4  14  12   7  14    3 |    4   6  11   6  14  14   5  10    5
  14  |   7   5 ---   5  30   4   9   7    3 |    4   5 ---   5  28   6  10   9    5
  15E |   6   7   9  10  16   7  13  10    4 |    9  12  14  16  16   9  21  10   10
  16  |   6   5   7   4   7   3  11  12    3 |   11  12  14  13  12  12  17  17   10
  17  |   4   6   4   9  10   6   9   5    3 |    6   8   9  10  16   5  11   8    5
  18  |   5   5   6   4  16   5   7   5    2 |    7   8  12   7  19  10  10  12    6
  19E |  12  18  15  21  16   9  21   6    7 |   30  41  20  41  27  34  42  34   32
  21  |   5   6   4  10  10   5  11   9    3 |    3   6  10   5  15   4  10  15    3
  22  |   7   6   5   5   9   6  15   8    3 |    4  13  12  14  14   4  22  15    7
  23  |   9   8   6   9   8   7  15  12    4 |   10  11  14   9  11   7   9  17    6
  24E |   8  10   6   5  11   6  13   9    4 |    6  12  14  10  13   4  18   9    8
  25E |   6   7   8  14  13   7  24  11    5 |    6   9  14  15  17   4  27   8    8
  26  |   5   6   8  13   5   4  17   8    4 |    4   8  13  14  10   5  17   9    5
  27E |   6   6  13  12  10   6  13   9    4 |    8  13  10  16  15   9  17  11   10
  28  |  15   5   9 ---  11  15 ---  14    7 |    3   7   6 ---  10  11 ---   4    5
  29  |   5   6   6   4  12   3   5   5    2 |   12  10   9   5   7  12  12   8   10
  30  |   8  12  15   9  11  10  21  12    5 |   14  19  26  27  22  17  22  24   17
  31  |   7   4   5  10  11   5  10   7    3 |    4   6  11   7  13   4  11  10    3
------|--------------------------------------|--------------------------------------
 RMS  |   7   8   8   9  13   7  13  10      |T   8  12  13  14  16  10  17  13    9
 WRMS |   6   7   8   8  11   7  13  11      |NE  6   9  12  11  15   8  13  12    6
 MEDI |   6   6   6   9  11   6  11   9      |MD  6  10  12  10  14   6  12  11    6

Table 3.0878.2   GPS week: 0878   Day: 2   MJD: 50392.0

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

Table 3.0878.3   GPS week: 0878   Day: 3   MJD: 50393.0

               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  |   7  17   5   3   3   5  17  12    4 |    5  22  11  10   7   6  13  21    7
   2  |   5  12   6   7   4   8  16   9    4 |    5  14  11   8   6   7  14  21    6
   3  |  11  31   8  10  13   8  14  11    6 |    5  36  11   8  20   8  16  26    9
   4E |   9   6   7   7   8   8  16  16    4 |    7  13  13  12  13   6  18  19    8
   5  |   9   9   6   7   4   5   9  14    3 |    5  11  16  12   8   8  13  22    9
   6  |   5  19   8   7   6   7  14  12    5 |    3  20  10  10   8   4  15  27    6
   7  |   5   7   7  10   6   7  16  10    4 |    4  11  11  10   9   8  16  19    6
   9E |   9  10  15  13   4   8  19  13    6 |   11  15  13  20  13   9  15  21   12
  10  |   5  11   4   6   4 ---   9  14    3 |    4  14  10   8   7 ---  11  16    5
  14  |  21 ---   9   9   9  15  14  35    7 |   23 ---   6   5  14  15   8  30    8
  15E |   9  10  12   6   4   9  18  13    5 |    7  14  20  11   8  11  20  28   10
  16  |   5   7   7   6   7   6   9  11    3 |   10  14  12  10  12   8  16  21    9
  17E |   8  18   9   8   7   8  13   8    5 |    6  17  12  12   8   8  14  27    6
  18  |   4  13  11   5  14  10   9  20    4 |   13  22  15  12  18  14  16  33   12
  19E |  12  21  12 ---   8  16  21  14    8 |   13  25  11 ---  15  19  17  19   12
  21  |   6  11   4   6   7   7   9  16    3 |    5  10  10   9  12   7  12  30    5
  22  |   7  11  13  12   7   9  14  51    5 |    6  17  11  17  12   6  19  59    8
  23  |   8   8   7   7   5   8  11  26    4 |    9  11  12   8   9  10   8  36    7
  24E |   7   6   7   4   5   6  11   6    3 |    8  17  16   9  11   7  14  18    9
  25E |  11  12  21  11   5   8  15  25    6 |   10  19  33  13  18  12  25  33   16
  26  |   6   8   7   6   6   7  12  13    3 |    5  13  10   9   9   8  11  19    6
  27E |  11  10  13  10   4   8  14  11    5 |   11  12  21  15  11  11  18  24   10
  29  |  33  35 --- ---  32  47  44  55   23 |   53  49 --- ---  33  97  53  59   57
  30  |   9   9  11  12  10  12  11  22    5 |   17  17  21  24  24  18  24  34   18
  31  |   7  12  12   8   3   8   9  15    4 |    7  14  13   7   8   7  13  26    6
------|--------------------------------------|--------------------------------------
 RMS  |  11  15  10   8   9  13  16  22      |T  14  19  14  12  13  22  18  29   14
 WRMS |   7  15   8   7   7  14  16  14      |NE 15  21  12  11  14  25  19  31   16
 MEDI |   8  11   8   7   6   8  14  14      |MD  7  15  12  10  11   8  15  26    8

Table 3.0878.4   GPS week: 0878   Day: 4   MJD: 50394.0

               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  24   5   7   6   5   9  26    5 |    4  20  11   8  10   5  10  12    6
   2  |   5   6   4   7   5   6  12  15    3 |    4   7  10   9   7   5  10  18    4
   3  |   5  10  10   4   7   7   6   7    3 |    5  10  10   9  11   4  13  19    6
   4E |   8  10   9   7   6   5  15  16    4 |    5  12  14  10  10   4  18  18    7
   5  |   8   7   8  13   7   8  10  11    4 |    5   8  12  14  11   5  13  28    6
   6  |   5   7   5   8   4   5  11  13    3 |    3   8   9  10  10   6  11  23    5
   7  |   6   7   4   7   4   5   8  18    3 |    4   6   9   9   7   4  10  17    4
   9E |   9   7   9  11   9   8  25   8    5 |    8  11  10  17  13   9  21  28    9
  10  |   6   5   8   7   7  11   8  10    4 |    4   9   8   8   8  15  10  18    6
  14  |   5   5   7   3   7   4   8  15    2 |   10  10  10  10  15  12  10  13    9
  15E |   7  11  11   7   4   8  16  10    4 |    6  10  13  13  10   7  18  23    8
  16  |   6   8   4   6   7   5   8  13    3 |    9  16  12  15  13  12  19  16   12
  17E |   6   5   8   7   7   5  14  19    3 |    7   8  10  12   8   5  15  23    7
  18  |   5   8   6   4   6   3   8  14    2 |   19  24  18  22  20  22  21  39   20
  19E |   7  17  10 ---  15   7  22  13    6 |   17  23   8 ---  26  17  30  12   17
  21  |   5   6   4   6   3   5   7  19    2 |    4   8   8   6   8   5  11  18    5
  22  |   7   7   7   7   6   4  11   9    3 |    4  12  10  16  13   6  18  28    8
  23  |   6   6   5   8   5   6  15  15    3 |   10   9   9  10   6   7  12  19    7
  24E |  10  14   6   5   5   9  12  12    4 |    7  16  13   9  10   7  18  18    7
  25E |   8  11  11  11   9   7  12   7    4 |   11  12  16  15  12   8  19  20   10
  26  |   5  12   9   7   6   5  16   7    4 |    5  13  12   9   9   6  15  20    5
  27E |   6   8   9   6   7   6  19  17    4 |   10  14  10  13  15  11  18  25   11
  29  |   6  14 ---   5   5   5  16  14    4 |    3   9 ---   7   5   4   8   9    4
  30  |   7  14   6  14   9  11  12  11    5 |   16  24  22  24  21  19  23  20   19
  31  |   8   7   9   9   6   8  11   9    4 |    6   7  12   7   9   5  14  22    5
------|--------------------------------------|--------------------------------------
 RMS  |   7  10   8   8   7   7  13  14      |T   8  13  11  12  12   9  16  21    9
 WRMS |   7  10   7   7   6   6  13  13      |NE  8  13  11  12  11   9  14  21    9
 MEDI |   6   8   8   7   6   6  12  13      |MD  6  10  10  10  10   6  15  19    7

Table 3.0878.5   GPS week: 0878   Day: 5   MJD: 50395.0

               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  14   7   7   5   6  12  21    4 |    4  14  12  12  12   8  18  19    9
   2  |   5   8   4   5   3   7  10  13    3 |    5  11   8   9   8   7  13  11    6
   3  |   5   5   9   7   9   5   8  14    3 |    4  10   9   9  11   5  11  12    6
   4E |   9  10   6   9  11   7  16  11    4 |    7  15  12  12  17   6  18   9    9
   5  |   6   8   4   5   4   7  10  16    3 |    4   9   9  12   9   5  14  14    7
   6  |   6  10   4   8   5   8   7  12    3 |    2  10   8  11   9   5  13  11    6
   7  |   6   5   6   7   4   7  14  19    3 |    4   9   7   9   7   7  15  12    6
   9E |   7   9   9   4   7   6  18  25    4 |   11  14  12  14  15  10  25  22   12
  10  |   7   7  12   8   9  11  12  22    4 |    3   7   9  11   8  14  11   8    6
  14  |  18 --- --- ---  31  22  29  26   16 |   22 --- --- ---  14  40   9  24   22
  15E |   6   6  10   4   8   7  11  15    3 |    6  11  13  11  14   7  17  22   10
  16  |   6  10   9   4   4   3  19   9    4 |    8   9  15  15  11  13  24   9   11
  17E |   6  14   6   6   9   6   9  14    4 |    6  21  12  12  16   8  12  12    9
  18  |   9   6   8   5   4   4   7  12    3 |   13  13   9  11  13  12  15  23   10
  19E |   9  17 --- ---   7  10  18 ---    8 |   14  30 --- ---  21  15  27 ---   18
  21  |   6  13   6   6   7   6   6  22    3 |    4  14   8   7  12   4  10  17    6
  22  |   9  11  10  12   5   7  12  14    4 |    4  13  10  15   9   3  17  12    7
  23  |   9  11   7   6   5   8  14  21    4 |   10  10   9  12   9   6  12  16    7
  24E |   9   9   6   7  10   8  17  11    4 |    8  10  15  13  16   7  23   9   10
  25E |   7  12   5   8   6   8  16  28    4 |   12  15  13  15  14  11  21  25   12
  26  |   8   8   6   5   4   6   8  19    3 |    6   8  10   9   8   5   8  13    6
  27E |   7  13  12   6   3   7  10  19    4 |   12  17   9  13  13  10  16  17   10
  29  |   6  13   7   6  10   4  24  13    4 |    3  14   9   7  10   4  17  10    5
  30  |  15  16  11  10   6  11  17  14    6 |   31  29  36  37  34  32  42  32   32
  31  |   9   8   7   8   8  10  13  13    4 |    4  11   9   7  10   7  15   8    6
------|--------------------------------------|--------------------------------------
 RMS  |   8  11   8   7   9   8  14  18      |T  10  14  12  13  13  13  18  16   11
 WRMS |   7  10   8   7   7   9  14  17      |NE 10  12  12  13  12  14  17  16   11
 MEDI |   7  10   7   6   6   7  12  15      |MD  6  12   9  12  12   7  15  13    9

Table 3.0878.6   GPS week: 0878   Day: 6   MJD: 50396.0

               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   7   7   6   6   8  25    3 |    6  12  10   9   8   5   9  15    7
   2  |   4   6   5   6   4   5  14  11    3 |    5   8   8  10   6   4  15  11    6
   3  |   4   8  11   5  11   5   9  14    3 |    4   8  10   6   9   4  13  10    6
   4E |   9   9   7   6   4   6  11  16    4 |    8  11  14  10  11   5  14  10    8
   5  |   8   7   8   7   6   8  14  17    4 |    4   9   9  10  10   5  17  16    7
   6  |   5   7   6   7   4   7   9  11    3 |    3   8   8  10   8   5  12   8    6
   7  |   6   6  11   9   4   5  12  18    4 |    5   9   8  10   7   5  13  14    6
   9E |   6   5   6   8   6   7  20  25    4 |   12  12  15  13  13  11  19  18   12
  10  |   5   5   7   9   5  11  13  33    4 |    3   7   8   7   8  14  11  12    8
  14  |   5   4 ---   5  26   4   8  23    2 |    0   0 ---   0   0   0   0   0  ---
  15E |   7  10   7   5   5   5  17  20    4 |    9   9  17  11  10   6  16  11   10
  16  |   5   6   9   4   2   6   7  11    3 |   11  17  18  17  12  13  16  11   14
  17E |   6   4   7   6   5   7  12  22    3 |    6  10  11  11  10   7  15  12    8
  18  |   5   5   7   5   5   3  11  12    3 |   12  15  13  12  13  15  15  22   13
  19E |   7  10 --- ---   4   6  23 ---    6 |    0   0 --- ---   0   0   0 ---  ---
  21  |   5   9   4 ---   4   5  11  19    3 |    5   9   6 ---   8   7  11  13    5
  22  |   8   6   9   7   5   4  14  14    3 |    4  10   8  13   9   5  20   7    8
  23  |  10   7   4   9  10   9  18  21    4 |   14  12  10  10  12  11  15  12   10
  24E |  10  15   7   7   4   8  10  15    4 |   10  11  15  12  13   8  16  10   10
  25E |   6   7   7   6   3   7  22  14    4 |   14  19  20  19  18  14  31  17   18
  26  |   4   6   8   4   6   5  10  25    3 |    6   7  11   8  10   9  10  14    7
  27E |   5   9 ---   6   7   8  18  21    4 |   13  17 ---  16  14  13  17  21   15
  29  |   6   6   5   4   3   4  16  14    3 |    3   7   8   5   6   3  10   9    5
  30  |   8  10  13   7   5  10  20  16    5 |   33  36  36  39  32  33  36  27   34
  31  |   5   6  10  10   3   5   8  14    3 |    4   6  10   5   6   4  12  11    5
------|--------------------------------------|--------------------------------------
 RMS  |   6   8   8   7   7   7  14  19      |T  10  13  13  13  12  10  16  14   11
 WRMS |   6   8   7   7   6   7  14  16      |NE 10  12  13  13  11  11  15  13   11
 MEDI |   6   7   7   6   5   6  12  17      |MD  6  10  10  10  10   7  15  12    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 4.0878   GPS week: 0878   MJD: 50390.0-50396.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2413 |U  45   28   73 |U  43   31   72 |   31   21   56 |
emr | emr 2295 |   34   24   66 |   35   22   62 |U  26   14   46 |
esa | esa 1799 |   37   24   62 |U  35   23   63 |   33   17   48 |
gfz | gfz 1129 |   37   24   65 |U  36   25   62 |   26   15   46 |
igr | igr 2296 |   38   23   66 |   35   23   61 |   28   15   49 |
igs | igs 2423 |   36   23   64 |   32   22   59 |   26   13   46 |
jpl | jpl 2382 |U  36   23   62 |U  31   21   57 |   25   12   47 |

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 5.0878.0   GPS week: 0878   Day: 0   MJD: 50390.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2492 |   53   30   81 |   38   31   68 |   31   22   62 |
emr | emr 2390 |   39   23   74 |   28   24   67 |   20   12   46 |
esa | esa 1962 |   40   23   77 |   35   25   75 |   30   16   51 |
gfz | gfz 1178 |   34   23   75 |   25   23   63 |   23   13   51 |
igr | igr 2484 |   38   24   74 |   27   22   65 |   28   11   51 |
igs | igs 2496 |   40   23   73 |   26   23   63 |   26   12   49 |
jpl | jpl 2472 |   40   24   75 |   24   21   61 |   23   11   48 |

Table 5.0878.1   GPS week: 0878   Day: 1   MJD: 50391.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2463 |   39   22   57 |   40   27   64 |   35   22   56 |
emr | emr 2399 |   32   20   54 |   25   16   53 |   25   13   48 |
esa | esa 1928 |   34   19   53 |   32   18   61 |   28   15   44 |
gfz | gfz 1181 |   32   17   51 |   24   19   59 |   28   14   46 |
igr | igr 1594 |   47   20   67 |   30   23   56 |   31   18   55 |
igs | igs 2467 |   33   18   53 |   26   17   52 |   26   12   49 |
jpl | jpl 2442 |   33   18   53 |   24   18   52 |   24   11   53 |

Table 5.0878.2   GPS week: 0878   Day: 2   MJD: 50392.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2396 |   45   28   68 |   45   31   73 |   30   21   54 |
emr | emr 2315 |   35   21   61 |   28   23   62 |   30   15   45 |
esa | esa 1956 |   43   23   60 |   28   24   72 |   32   19   41 |
gfz | gfz 1185 |   41   24   63 |   32   25   74 |   37   17   49 |
igr | igr 2397 |   38   23   56 |   31   24   66 |   28   15   45 |
igs | igs 2400 |   38   23   59 |   30   23   63 |   28   15   44 |
jpl | jpl 2372 |   39   24   56 |   30   23   60 |   28   15   46 |

Table 5.0878.3   GPS week: 0878   Day: 3   MJD: 50393.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2397 |   48   28   61 |   38   30   83 |   31   20   61 |
emr | emr 2203 |   30   27   51 |   42   20   71 |   28   17   47 |
esa | esa 1883 |   36   22   53 |   26   20   59 |   25   15   54 |
gfz | gfz 1072 |   39   27   47 |   26   21   56 |   18   12   36 |
igr | igr 2400 |   37   25   47 |   34   20   65 |   25   12   49 |
igs | igs 2400 |   38   24   48 |   32   20   65 |   25   13   47 |
jpl | jpl 2276 |   37   20   50 |   27   16   52 |   26   12   48 |

Table 5.0878.4   GPS week: 0878   Day: 4   MJD: 50394.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2344 |   41   25   79 |   43   37   76 |   33   19   63 |
emr | emr 2253 |   28   23   75 |   34   28   60 |   32   14   59 |
esa | esa 1785 |   33   22   51 |   39   28   60 |   30   19   52 |
gfz | gfz 1109 |   32   25   82 |   39   37   71 |   25   16   57 |
igr | igr 2398 |   28   19   72 |   33   28   60 |   31   14   57 |
igs | igs 2400 |   30   21   74 |   34   27   56 |   28   13   56 |
jpl | jpl 2371 |   31   20   72 |   36   27   62 |   30   12   56 |

Table 5.0878.5   GPS week: 0878   Day: 5   MJD: 50395.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   40   35   88 |   54   30   77 |   26   22   42 |
emr | emr 2203 |   34   28   83 |   51   21   63 |   18   14   39 |
esa | esa 1634 |   32   30   74 |   46   23   57 |   28   19   47 |
gfz | gfz 1090 |   40   28   56 |   61   27   63 |   22   15   42 |
igr | igr 2397 |   32   28   75 |   45   21   53 |   24   14   41 |
igs | igs 2400 |   32   28   76 |   46   22   57 |   23   15   38 |
jpl | jpl 2370 |   28   28   68 |   46   22   55 |   19   13   39 |

Table 5.0878.6   GPS week: 0878   Day: 6   MJD: 50396.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |   46   27   69 |   37   27   63 |   27   20   49 |
emr | emr 2303 |   39   24   56 |   30   18   56 |   26   13   34 |
esa | esa 1446 |   40   30   61 |   37   19   56 |   48   17   45 |
gfz | gfz 1091 |   41   23   72 |   32   17   43 |   21   15   39 |
igr | igr 2400 |   41   23   63 |   41   19   63 |   28   17   37 |
igs | igs 2400 |   40   23   59 |   27   17   51 |   23   13   33 |
jpl | jpl 2373 |   40   22   53 |   27   19   54 |   22   12   33 |

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