Subject: [IGSREPORT-3231] Wk 0880 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Tue, 3 Dec 1996 11:27:15 PST

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IGS Electronic Report    Tue Dec  3 11:27:15 PST 1996      Message Number 3231
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0880 IGS Final Orbits

Final IGS Orbit Combination - Week 0880   (Nov 17, 1996 - Nov 23, 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 (IGS08807.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:

 IGS08800-6.SP3  IGS GPS ephemeris files for days 0-6, week 0880 in SP3 format.
 IGS08807.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08807.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. Daily centre clock weights were determined using ALL SATELLITES since non-SA 
   satellites (PRN15 only) showed some small clock jumps that corrupted the 
   clock weights.

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

6. New clock offsets and drifts were estimated for centres showing reference
   clock resets.  Note that only the first clock offset and drift are output
   to the summary file.  However, the clock combination and the listed RMS
   include all the clock segments.  In summary, the following clock
   shifts/resets were noticed and accounted for:

                  Day | Centre |  Time  |  Jump
                  ----+--------+--------+-------------
                   2  |  GFZ   | ~19:00 | ~ -629.4 ns

                   3  |  GFZ   | ~18:30 | ~ 40.5 ns
                   3  |  IGR   | ~14:00 | ~ 19.2 ns
                   3  |  IGR   | ~16:30 | ~ -3.9 ns
                   3  |  IGR   | ~18:30 | ~ -9.8 ns

                   5  |  GFZ   | ~18:30 | ~ -149.6 ns
                   5  |  IGR   | ~18:30 | ~ -1.5 ns

7. 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 20) | 00:00:00 | 04,14 |   All    | Modeling problems
          3 (Nov 20) | 00:00:00 |  19   |   All    | Modeling problems (a)
          4 (Nov 21) | 00:00:00 | 15,17 |   All    | Modeling problems
          4 (Nov 21) | 00:00:00 |  24   |   All    | Modeling problems

  (a) Due to unrealistic long arc RMS, PRN19 was excluded from the long arc
      evaluation on day 2 for ACs that submitted solutions for this satellite;

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS08807.SUM).

Table 1: Week 0880 summary.                       (Nov 17, 1996 - Nov 23, 1996)

Table 1.0880.a   GPS week: 0880   MJD: 50404.0-50410.0

         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  .00  -.22  -.03   .15  -.3  .07  .05 |   -1.5    2.8    1.5
        | .00  .00  .00   .03   .08   .21   .1           |    4.4    8.5
emr  31 | .00 -.01  .00   .23  -.17   .25  -.1  .09  .09 |   25.7    7.0     .4
        | .00  .00  .00   .14   .07   .20   .2           |  438.0   19.5
esa  60 | .01 -.01  .00   .28  -.04   .12   .0  .09  .08 |    7.6   26.8    3.2
        | .01  .00  .00   .11   .12   .14   .1           |   12.9   37.2
gfz  47 | .00 -.03 -.01   .10  -.03  -.15  -.1  .08  .07 |  325.1   30.5     .4
        | .01  .01  .00   .12   .09   .13   .1           |  318.7    5.7
igr  n/a| .00  .00  .00   .03   .01  -.02  -.1  .09  .06 |   -3.7    9.4     .9
        | .00  .01  .01   .15   .13   .18   .1           |    9.7   18.6
jpl  37 | .00  .02  .00  -.10  -.02   .06   .3  .07  .07 | -207.1   -4.5     .4
        | .01  .00  .00   .09   .09   .18   .1           |  817.3   16.4
ngs  51 | .00 -.05 -.01   .22   .09  -.22  -.2  .16  .16 |    -.8    1.5   80.9
        | .01  .01  .01   .29   .15   .18   .2           |    2.5    3.9
sio  117|-.01  .02  .02  -.23   .28  -.29   .2  .08  .07 |     .0     .0     .0
        | .00  .00  .00   .06   .10   .28   .2           |     .0     .0

Table 1.0880.b   GPS week : 0880   MJD: 50404.0-50410.0

         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   3   5   3   3   2   2 |
   2  |   3   3   3   3   2   2   3 |
   3  |   3   2   3   3   3   2   3 |
   4E |   3   4   4   4   3   3   4 |
   5  |   3   3   3   3   3   3   3 |
   6  |   3   3   3   2   2   3   3 |
   7  |   3   3   4   3   3   3   2 |
   9  |   3   3   3   3   3   3   2 |
  10  |   4   3   4   3   3   3   3 |
  14  |   3   3  16   6   2   3   2 | Modeling problems on day 2.
  15E |   4   3   4   4   3   3   4 |
  16  |   3   2   5   3   3   2   2 |
  17E |   3   4   4   4   3   3   3 |
  18  |   2   2   5   2   2   2   2 |
  19  |   3   3  26   2   3   3   2 | Modeling problems on day 2.
  21  |   2   2   3   3   3   2   2 |
  22  |   4   3   4   3   3   4   3 |
  23  |   3   3   3   3   3   3   3 |
  24E |   5   5   5   4   6   5   5 |
  25  |   3   2   3   2   3   3   2 |
  26  |   3   3   2   2   2   3   3 |
  27  |   3   3   6   3   3   3   3 |
  29  |   3   3   4   3   3   3   3 |
  30  |   4   4   4   4   3   4   4 |
  31  |   2   3   3   3   3   2   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 2.0880.0   GPS week: 0880   Day: 0   MJD: 50404.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .02  .00  -.26  -.14   .18  -.3  .06  .05 |    2.3    -.2    1.3
emr  30 | .00 -.02  .00   .33  -.07   .09   .0  .08  .08 |  640.5   25.5     .4
esa  61 | .00  .00  .00   .28   .04   .34  -.2  .08  .08 |   -4.8  -30.1    3.7
gfz  47 | .00 -.03 -.01   .30  -.07  -.18  -.2  .08  .07 |  642.3   25.3     .4
igr  n/a| .00  .01  .00  -.05   .00  -.07  -.1  .09  .08 |  -17.3   35.1     .4
jpl  37 | .00  .02  .00  -.05  -.05  -.05   .1  .06  .06 |  642.1   25.2     .4
ngs  53 |-.01 -.05  .00  -.23   .05  -.37  -.2  .13  .13 |   -6.2   10.2   81.8
sio  118| .00  .01  .02  -.26   .31  -.27   .4  .07  .06 |     .0     .0     .0

Table 2.0880.1   GPS week: 0880   Day: 1   MJD: 50405.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .01  .02  .00  -.19   .01   .20  -.1  .06  .05 |     .4   -3.0    1.7
emr  30 | .00  .00  .01   .14  -.13   .32  -.4  .09  .09 |  659.5   28.1     .3
esa  61 | .01  .00  .00   .26  -.11   .04   .2  .08  .07 |     .1    6.4    1.6
gfz  44 |-.01 -.04 -.02   .19  -.09  -.26  -.3  .08  .07 |  661.3   27.9     .3
igr  n/a| .00  .00 -.01  -.16   .01  -.06  -.1  .04  .04 |    9.6   -7.4     .3
jpl  37 | .00  .01  .00  -.10  -.08  -.21   .2  .06  .06 |-1048.0  -23.8     .3
ngs  50 | .02 -.06  .00   .03   .33   .02   .0  .15  .15 |     .9     .5   80.7
sio  112|-.01  .02  .02  -.13   .30   .10   .2  .07  .06 |     .0     .0     .0

Table 2.0880.2   GPS week: 0880   Day: 2   MJD: 50406.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 |-.01  .03  .00  -.26  -.03   .29  -.2  .10  .06 |   -5.3   10.7    1.6
emr  31 | .01 -.01  .00   .51  -.24   .59   .0  .13  .11 | -260.5   -6.4     .7
esa  60 | .01 -.01 -.01   .49   .13  -.10   .1  .11  .09 |   32.0    -.4    1.1
gfz  48 | .01 -.03  .00  -.03  -.05  -.35  -.2  .08  .08 |  683.6   31.6     .6
igr  n/a| .00 -.01 -.02   .32   .24  -.30  -.3  .18  .10 |    -.5   -1.3    1.9
jpl  37 | .01  .02  .00  -.28   .00  -.01   .2  .13  .14 |-1078.0  -20.3     .5
ngs  51 | .00 -.05  .01   .30  -.16  -.30   .1  .25  .25 |   -1.2     .1   81.5
sio  121| .00  .01  .02  -.27   .38  -.33   .5  .13  .09 |     .0     .0     .0

Table 2.0880.3   GPS week: 0880   Day: 3   MJD: 50407.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .02  .01  -.19   .00   .29  -.4  .06  .06 |   -2.7    3.5    1.4
emr  31 |-.01 -.01  .00   .11  -.27   .26  -.2  .08  .07 | -271.5  -10.3     .3
esa  60 | .00 -.01  .00   .32  -.11   .18  -.1  .12  .08 |   15.3   31.2    2.2
gfz  46 |-.01 -.03 -.01   .02   .15  -.17   .0  .07  .07 |   56.5   29.2     .3
igr  n/a| .00  .01  .00   .05   .04   .25  -.1  .07  .06 |  -15.1   29.6     .4
jpl  37 | .01  .01  .00  -.12  -.08   .19   .4  .05  .05 |-1099.0   -9.0     .3
ngs  50 | .00 -.05 -.02   .65   .03  -.36  -.3  .14  .14 |    -.8    -.6   81.2
sio  117|-.01  .02  .02  -.22   .37  -.84   .2  .07  .07 |     .0     .0     .0

Table 2.0880.4   GPS week: 0880   Day: 4   MJD: 50408.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .02  .00  -.19  -.13  -.01  -.2  .05  .05 |   -8.3   17.5    1.3
emr  32 |-.01  .00  .00   .15  -.22   .13  -.2  .09  .09 | -286.3   -3.5     .6
esa  57 | .01  .00 -.01   .11  -.12   .14   .1  .08  .08 |   10.8   41.1    6.5
gfz  47 |-.01 -.03 -.01   .09  -.05  -.09  -.2  .08  .07 |   98.9   42.6     .6
igr  n/a| .01 -.01  .00   .04  -.19  -.08  -.1  .05  .04 |   -3.1   -3.3     .5
jpl  37 | .00  .02  .00  -.04   .10   .27   .4  .06  .06 |  379.8    4.1     .5
ngs  51 | .00 -.06 -.02   .13   .15  -.32  -.5  .14  .14 |    -.3   -1.6   80.2
sio  119| .00  .02  .02  -.15   .28  -.19   .2  .06  .06 |     .0     .0     .0

Table 2.0880.5   GPS week: 0880   Day: 5   MJD: 50409.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .02  .00  -.20  -.05  -.26  -.3  .06  .06 |    4.5   -6.6    1.4
emr  33 |-.01  .00 -.01   .20  -.13   .38   .0  .09  .09 | -294.9  -13.3     .3
esa  59 | .01 -.01  .00   .23  -.17   .17   .0  .08  .07 |    2.1   70.8    1.5
gfz  48 | .00 -.03 -.01   .01   .03  -.05  -.1  .07  .06 |  138.2   27.4     .3
igr  n/a| .01  .00  .00  -.04   .02   .00   .0  .04  .04 |   -3.6   21.3     .5
jpl  37 | .00  .02  .00  -.10   .12   .25   .3  .06  .06 |  379.7   -6.4     .3
ngs  51 | .00 -.05 -.01   .47   .14  -.27  -.2  .13  .13 |    1.2     .2   82.0
sio  114|-.01  .01  .02  -.30   .09  -.18   .0  .07  .07 |     .0     .0     .0

Table 2.0880.6   GPS week: 0880   Day: 6   MJD: 50410.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  80 | .00  .02  .00  -.24   .11   .35  -.4  .06  .05 |   -1.5   -2.1    1.3
emr  32 |-.01 -.01  .00   .16  -.12  -.01  -.1  .07  .08 |   -6.5   29.3     .3
esa  59 | .01  .00 -.01   .28   .07   .06   .0  .09  .08 |   -2.5   68.8    2.4
gfz  48 | .00 -.03 -.01   .17  -.13   .03   .0  .07  .06 |   -5.1   29.3     .3
igr  n/a| .01 -.01  .00   .02  -.06   .15  -.2  .04  .04 |    4.1   -8.2     .9
jpl  37 | .00  .02  .00   .00  -.11   .01   .3  .05  .05 |  373.7   -1.3     .3
ngs  52 |-.01 -.04 -.01   .15   .10   .04   .0  .11  .11 |     .7    1.6   78.8
sio  117|-.01  .02  .02  -.24   .19  -.31   .1  .06  .07 |     .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 3.0880.0   GPS week: 0880   Day: 0   MJD: 50404.0

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

Table 3.0880.1   GPS week: 0880   Day: 1   MJD: 50405.0

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

Table 3.0880.2   GPS week: 0880   Day: 2   MJD: 50406.0

               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  16  11  20   8   5  14   6    5 |    3  14   9  15  13   5  10   6    7
   2  |   5  11   6   6  12   6  14   8    3 |    7  12   9  12  15  10  19  14   10
   3  |   5   8  13   4   7   3   7  14    3 |    4   9  10   9  11   5  12  10    5
   4E |   8  11  13   9  10   7  12   9    4 |    4  11  17  12   9   4  17   7    7
   5  |   7   9   6   7   9   6  11   7    3 |    6  12  10  13  17   9  17   8   10
   6  |   3   9   9   6   8   5   9   8    3 |    3   8   9   9  12   5  15   9    6
   7  |   7   8   5  13   6   5  15   8    4 |    3   8   8  16  10   4  14   7    7
   9  |   4  12   5   4   9   5  15   6    3 |    5  13  10  10  16   8  17   7    9
  10  |   6   7  10   7   7  12  12   9    4 |    4   9   9   6  11  10  12   7    9
  14  |  27  35 --- ---  34  36  41  22   16 |   30  57 --- ---  28  79  27  50   46
  15E |   6  11  14   8   9   6  14   8    4 |    6  17  15  13  12   6  17  10    9
  16  |   7  11  15   8   9   6  21  17    5 |   26  26  19  23  27  24  27  37   24
  17E |   6   9   8   9   7   6  22   6    4 |    5   9   8  11  12   7  19   9    6
  18  |  10  11  14   7  12   6  29  21    5 |   22  17  15  21  30  20  26  29   19
  19  |  30 --- --- ---  68  45  92  29   26 |    0 --- --- ---   0   0   0   0  ---
  21  |   4   9   6   8   5   5   8   8    3 |    5   7  10   6  13   8  10   9    8
  22  |  10  12  13   7  11   4  13   8    4 |    8  15  12  12  18   7  16   9   10
  23  |   5   8   9   6   5   6  16  10    3 |   13  13  14  14  17  15  12  14   14
  24E |   9  11  18   8  12   9  18  12    5 |   14  16  16  13  15  14  26  13   12
  25  |   6   9   9   5  11   6  10   6    3 |    5  11  15  10  21   8  12   7   10
  26  |   5  12   4   4   7   4   8   4    2 |    4  11   6   5  13   6   9   4    6
  27  |   6  20 ---   7  11   8  23  16    6 |    8  14 ---  16  14   8  29  24   11
  29  |   5  13   9   5   7   5  23  12    4 |    5  17   8   6  15   6  16  12    7
  30  |   7  14   9   8  21   9  14   8    4 |    8  13  16  15  22  10  22  10   12
  31  |   3   8  12   5   7   4  13  16    3 |    4  10  11   6  10   7  15  13    6
------|--------------------------------------|--------------------------------------
 RMS  |  10  13  11   8  18  13  25  13      |T  11  17  12  12  16  18  18  17   14
 WRMS |   6  11   9   8  10  14  25   9      |NE 11  18  11  12  17  19  17  17   14
 MEDI |   6  11   9   7   9   6  14   8      |MD  5  13  10  12  15   8  17  10    9

Table 3.0880.3   GPS week: 0880   Day: 3   MJD: 50407.0

               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   6   9  11   6   4   8   8    3 |    4   6   7   7   9   6  13  10    6
   2  |   6   9   8   7   3   5  17   6    3 |    8  14  13  13  11  11  19  11   12
   3  |   5   5   9   5   4   5   8  10    3 |    6   7  11   9   7   7  12  15    7
   4E |   7   9  14  12   6   5  20   9    4 |   15  20  23  22  16  15  23  15   16
   5  |   7   7   9  11   4   5  11   8    3 |    5  10  15  13   8   7  16  13   10
   6  |   4   6  10   5   5   3  11   6    2 |    3  10  12   8   9   5  16  10    7
   7  |   6   5   6   6   4   4  18   8    3 |    4   8   7   9   8   6  23   8    7
   9  |   4   8   6   6   5   4  19   9    3 |    5  11  15   9   9   8  16   8    9
  10  |   4   5   8   9   7 ---   8   5    3 |    5   8  15   8  10 ---  11  10    9
  14  |   6  13  40   5  15   6   8   6    6 |    4  12  27   7  10   6  13   7    6
  15E |   7   6  21   8   4   5  15  12    4 |    6  12  22  15  11   8  20   8    9
  16  |   9   5   5   7   4   2  11   6    3 |   11  12  16  14  13  12  19  12   14
  17E |   6  11  12   5  10   5  23   9    4 |    7  11  10  10  10   7  19  10    8
  18  |   5   4   9   5   4   3   8   5    2 |   16  16  19  18  16  14  21  19   16
  19  |   4   6   4   4  11   4  12   5    2 |    3   7   6   6  11   4  14   4    5
  21  |   5  11   5   6   6   4   7   5    3 |    6  14   9   8  11   8  11  10   10
  22  |  10   8   7  10   5   3  17   6    3 |    8  14  12  14  14  11  18  11   12
  23  |   4   5   5   8   6   4  14   6    3 |   15  14  17  15  16  15  12  13   15
  24E |  11  12  12  11   6   8  14  10    4 |   14  23  25  23  18  17  29  20   19
  25  |   6   6   6   7   5   4  11   5    2 |    5  11   9  12   9   9  18   7    9
  26  |   5   7   4   6   5   4   7   6    2 |    5  10  10   7   8   6  11   9    7
  27  |   6   7   9   6  13   4  14   9    3 |    6  12  13  12  13   7  19  15   10
  29  |   4   8   9   4   4   3  16   7    3 |    4  12  12   8   9   7  18   7    8
  30  |   6  11   8   8   7   8  16   7    4 |    8  15  15  18  12  11  26  14   13
  31  |   6   5   8   6   6   4  14   8    3 |    5   8  13   6   9   6  16  10    7
------|--------------------------------------|--------------------------------------
 RMS  |   6   8  12   7   7   5  14   7      |T   8  12  15  12  11   9  17  11   10
 WRMS |   6   7   8   7   6   5  14   7      |NE  7  11  13  11  10   8  16  11    9
 MEDI |   6   7   8   6   5   4  14   7      |MD  6  12  13  10  10   8  18  10    9

Table 3.0880.4   GPS week: 0880   Day: 4   MJD: 50408.0

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

Table 3.0880.5   GPS week: 0880   Day: 5   MJD: 50409.0

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

Table 3.0880.6   GPS week: 0880   Day: 6   MJD: 50410.0

               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   5   5   6   5   3   8   5    2 |    6   8   8   9  10   8  13   7    8
   2  |   6   7   7   6   4   5  11   5    3 |    9  13   7  13  10  10  17  11   11
   3  |   5   4  13   5   5   4   7   4    3 |   10  13  10  12  12  11  17  10   12
   4E |   7  12  10   9   4   7  11   6    4 |   17  22  27  21  18  19  24  19   19
   5  |   7   7   8   7   3   6  10   7    3 |    5   8  10  10   8   7  15   6    8
   6  |   4   6  12   7   4   4   8  11    3 |    2   8   8  11   9   4  16  10    6
   7  |   5   6   5   6   7   5  11   6    2 |    4   7   8  10   9   5  15   7    7
   9  |   5   6   6   5   5   5  10   5    2 |    6  10  10  11   9   6  13   6    9
  10  |   3   6   5   6   3 ---  11   5    3 |    4   8   8   7   6 ---  10   6    8
  14  |   5   6   5   6   3   4   8   6    2 |    5  10   8   9   8   6  10   7    6
  15E |   5  12  19   6   7   6  11  10    4 |    5  11  17  11   9   6  18   9    8
  16  |   4   5   7   5   2   4   8   6    2 |    9  11  11  14  11  11  13  11   13
  17E |   6   7  10   7   4   5  12   8    3 |   13  14  16  15  13  12  21  13   12
  18  |   4   4   8   5   3   3   5   7    2 |   10  10  11  11  12  11  16  13   11
  19  |   4   5   8   4   3   4  10   4    2 |    3   9   8   8   8   6  14   7    7
  21  |   4   6   6   5   4   6   7   6    2 |    5   8   7   8   7   8  11   8    8
  22  |   9   5  11   6   4   5  18   4    3 |    7  11  11  15  12   9  16   6   11
  23  |   3   6   7   5   3   4  14   7    3 |   17  17  16  16  16  16  13  16   16
  24E |  11  14   9  20   7  10  13   7    5 |   10  17  17  17  13   9  21  10   11
  25  |   4   5   4   6   2   5  12   5    2 |    5   9   7   9   7   6  15   5    7
  26  |   6   9   6   7   6   5  10   6    3 |    4   9   8   9   9   6  11   6    7
  27  |   5   6  10   4   5   4  12   5    3 |    6  10   9   9   7   6  20   7    8
  29  |   4   6   8   4   3   3  18   7    3 |    5  10   9   9   8   8  21   7    8
  30  |   6  11  14  10   4   9  16   7    4 |    9  15  15  16  12  10  24   9   11
  31  |   6   5   8   9   5   3   9   5    3 |    5   7   8   6   7   5  15   6    7
------|--------------------------------------|--------------------------------------
 RMS  |   6   7   9   7   4   5  11   6      |T   8  11  11  11  10   9  16   9   10
 WRMS |   5   8   8   6   4   5  11   7      |NE  7  10   9  10   9   8  15   8    9
 MEDI |   5   6   8   6   4   5  11   6      |MD  6  10   9  11   9   8  15   7    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 4.0880   GPS week: 0880   MJD: 50404.0-50410.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2398 |U  56   35   94 |U  39   30   79 |   32   22   56 |
emr | emr 2368 |   49   30   93 |   29   20   56 |U  29   15   48 |
esa | esa 2076 |   44   30   94 |U  31   25   65 |   34   21   52 |
gfz | gfz 1075 |   58   31   80 |U  28   20   64 |   33   17   47 |
igr | igr 2375 |   49   30   91 |   28   20   59 |   30   16   52 |
igs | igs 2399 |   49   30   90 |   27   21   56 |   28   15   48 |
jpl | jpl 2328 |U  45   29   89 |U  28   21   57 |   30   17   51 |

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 5.0880.0   GPS week: 0880   Day: 0   MJD: 50404.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2396 |   45   33   71 |   40   27   86 |   27   23   50 |
emr | emr 2299 |   28   26   56 |   26   14   62 |   23   15   38 |
esa | esa 2261 |   35   27   59 |   26   17   61 |   24   15   38 |
gfz | gfz 1185 |   39   24   62 |   32   19   78 |   28   19   48 |
igr | igr 2397 |   35   25   56 |   25   14   59 |   21   14   37 |
igs | igs 2397 |   36   25   56 |   26   16   61 |   22   14   38 |
jpl | jpl 2380 |   32   23   56 |   26   16   62 |   22   14   40 |

Table 5.0880.1   GPS week: 0880   Day: 1   MJD: 50405.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2398 |   66   28   79 |    0    0    0 |   30   21   60 |
emr | emr 2400 |   56   24   72 |    0    0    0 |   27   15   53 |
esa | esa 2340 |   60   24   67 |    0    0    0 |   28   15   52 |
gfz | gfz 1190 |   83   22   85 |    0    0    0 |   28   16   51 |
igr | igr 2400 |   60   23   74 |    0    0    0 |   27   14   54 |
igs | igs 2400 |   59   23   73 |    0    0    0 |   27   14   54 |
jpl | jpl 2383 |   24   21   61 |    0    0    0 |   28   14   55 |

Table 5.0880.2   GPS week: 0880   Day: 2   MJD: 50406.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2398 |   81   43  164 |   41   32   80 |   34   21   61 |
emr | emr 2302 |   77   41  176 |   30   24   60 |   33   16   56 |
esa | esa 1756 |   53   48  181 |   27   23   63 |   46   23   56 |
gfz | gfz  913 |   69   28   99 |   33   31   87 |   56   24   59 |
igr | igr 2258 |   69   40  172 |   31   26   72 |   40   22   74 |
igs | igs 2399 |   72   39  166 |   28   26   65 |   33   17   60 |
jpl | jpl 2383 |   70   38  170 |   27   26   59 |   33   15   56 |

Table 5.0880.3   GPS week: 0880   Day: 3   MJD: 50407.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   57   34   81 |   35   27   80 |   31   22   60 |
emr | emr 2393 |   48   27   80 |   20   18   60 |   27   13   47 |
esa | esa 2301 |   40   25   77 |   27   20   64 |   26   16   51 |
gfz | gfz  868 |   71   27   90 |   19   16   61 |   19   13   37 |
igr | igr 2395 |   47   28   79 |   20   18   57 |   26   15   48 |
igs | igs 2400 |   49   27   79 |   19   18   60 |   26   14   48 |
jpl | jpl 2287 |   48   28   81 |   20   20   60 |   28   16   53 |

Table 5.0880.4   GPS week: 0880   Day: 4   MJD: 50408.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2394 |   38   40   73 |   34   30   64 |   30   23   56 |
emr | emr 2398 |   28   38   63 |   23   15   45 |   26   15   49 |
esa | esa 1907 |   34   28   59 |   25   35   65 |   28   28   57 |
gfz | gfz 1088 |   32   52   64 |   19   15   47 |   24   16   48 |
igr | igr 2400 |   28   38   61 |   21   16   44 |   25   14   49 |
igs | igs 2400 |   28   38   63 |   21   16   42 |   25   15   47 |
jpl | jpl 2288 |   35   39   64 |   22   18   43 |   28   18   50 |

Table 5.0880.5   GPS week: 0880   Day: 5   MJD: 50409.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   41   28   70 |   41   34   82 |   31   22   51 |
emr | emr 2399 |   34   22   66 |   38   26   52 |   30   14   45 |
esa | esa 2003 |   38   23   79 |   40   31   60 |   35   20   46 |
gfz | gfz 1092 |   27   20   71 |   31   16   44 |   20   13   45 |
igr | igr 2379 |   37   20   64 |   36   27   59 |   27   14   44 |
igs | igs 2400 |   35   22   65 |   36   26   52 |   28   13   42 |
jpl | jpl 2288 |   40   20   59 |   38   27   56 |   28   18   48 |

Table 5.0880.6   GPS week: 0880   Day: 6   MJD: 50410.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   47   35   84 |   42   32   79 |   40   25   50 |
emr | emr 2386 |   52   30   83 |   32   19   56 |   37   19   48 |
esa | esa 1961 |   38   28   70 |   39   19   74 |   45   25   60 |
gfz | gfz 1192 |   59   28   82 |   28   18   55 |   37   16   40 |
igr | igr 2394 |   50   28   73 |   30   18   59 |   37   17   49 |
igs | igs 2400 |   51   28   78 |   28   19   55 |   36   18   46 |
jpl | jpl 2288 |   53   25   71 |   28   19   56 |   40   20   51 |

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