Subject: [IGSREPORT-3353] Wk 0886 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Tue, 14 Jan 1997 18:40:39 PST

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IGS Electronic Report    Tue Jan 14 18:40:39 PST 1997      Message Number 3353
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0886 IGS Final Orbits

Final IGS Orbit Combination - Week 0886   (Dec 29, 1996 - Jan 04, 1997)

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

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS08867.SUM).

SOFTWARE:

  The weighted average software used was developed by T. Springer and
G. Beutler during 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

   Beutler, Kouba and Springer, 1995, Combining the orbits of the IGS Analysis
   Centers, Bulletin Geodesique, 69, pp 200-222.

   Kouba, Mireault and Lahaye, 1995, 1994 IGS Orbit/Clock Combination and 
   Evaluation, Appendix I of the Analysis Coordinator Report, International GPS 
   Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

PRODUCTS GENERATED:

  The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite. Note that each file contains all the
satellites that appear in any of the centre ephemeris files. If a satellite or
centre was excluded from combination, a note in the REMARKS section of this
report will identify the exclusion and the reason.

  The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.
These values are supplemented with the current IERS Bulletin A UT1-UTC values. 

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

 IGS08860-6.SP3  IGS GPS ephemeris files for days 0-6, week 0886 in SP3 format.
 IGS08867.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08867.SUM    Complete report.

REMARKS on IGS Final Orbit Combination:

1. The centres used in the clock combination are COD, EMR, ESA, GFZ and JPL. The
   other centres are excluded because they either provide broadcast clocks (NGS)
   or clock corrections are not provided (SIO).  The clock information not
   used is still compared to combination for completeness.  
   The value of 999999.999999 microseconds, according to the sp3 format 
   convention, is used to signify that no clock solution is available and 
   therefore must not be used.

2. Only the GFZ "exact" clock corrections (one epoch out of two) are included
   in the combination and RMS computation (no "interpolation" values).

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

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

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

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

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

                  Day | Centre | PRN list
                  ----+--------+---------------
                   1  |  ESA   |  ALL
                  3-4 |  ESA   |  ALL
                   6  |  ESA   |  ALL

7. The following table lists all maneuvered satellites for this week.
   The ESA solution which modeled the maneuver is provided for that satellite
   on that day as the combined solution. An associated accuracy code of 0
   (unknown) was given since there was no redundancy. These satellites were
   excluded from the long arc evaluation on these days due to unrealistic RMS
   caused by the maneuver.

               PRN | Day |    Date    | Ref. NANU
               ----+-----+------------+-----------
                16 |  4  | 1997_01_02 | 001-97003
                16 |  5  | 1997_01_03 | 001-97003

   Note that COD solution for PRN 16 on day 5 was kept in the combination since
   the maneuver ended at 01:25 on day 5 and that COD and ESA solutions for 
   PRN16 on that day agreed fairly well.

8. 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 rotations - see Table 2)
                  5-6 |  SIO   |  ALL (High rotations - see Table 2)
                   4  |  SIO   |  16 (see Remark 7)

9. 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
         ------------+----------+-------+----------+-------------------
          2 (Dec 31) | 00:00:00 |  16   |   All    | Modeling problems (a)
          3 (Jan 01) | 00:00:00 |  10   |   All    | Modeling problems (b)
          3 (Jan 01) | 00:00:00 |  14   |   All    | Modeling problems (c)
          4 (Jan 02) | 00:00:00 |  23   |   All    | Modeling problems

  (a) Due to unrealistic long arc RMS, PRN16 was excluded from the long arc
      evaluation on days 1 and 4-6 for ACs that submitted solutions for 
      this satellite (see also Remark 7);

  (b) Due to unrealistic long arc RMS, PRN10 was excluded from the long arc
      evaluation on days 1-2 for ACs that submitted solutions for this 
      satellite;

  (c) Due to unrealistic long arc RMS, PRN14 was excluded from the long arc
      evaluation on day 1 for ACs that submitted solutions for this satellite;

10.Centre specific UT1-UTC values for ESA 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 (IGS08867.SUM).

Table 1: Week 0886 summary.                       (Dec 29, 1996 - Jan 04, 1997)

Table 1.0886.a   GPS week: 0886   MJD: 50446.0-50452.0

         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  80 | .00  .03  .01  -.32  -.01   .13  -.2  .09  .06 |   -1.1    9.6    1.1
        | .01  .01  .01   .10   .07   .16   .1           |    8.4   14.4
emr  28 |-.01  .01 -.01   .23   .05   .30  -.3  .10  .10 |  277.6   46.2     .6
        | .00  .01  .01   .13   .09   .40   .1           |  116.0   13.2
esa  56 | .01  .00  .00   .09  -.05  -.09   .1  .10  .07 |    2.2   -5.4    3.4
        | .00  .00  .01   .13   .13   .12   .2           |   29.8   28.4
gfz  48 | .00 -.02 -.01   .20   .06  -.20  -.2  .06  .05 |  279.2   46.6     .5
        | .00  .00  .00   .10   .08   .06   .1           |  116.1   13.3
igr  n/a| .00  .00  .00   .10   .06   .17   .0  .15  .05 |     .1     .6     .8
        | .00  .00  .00   .16   .12   .14   .1           |    3.1    7.3
jpl  37 | .00  .01  .00  -.11  -.12   .06   .5  .07  .07 |  279.0   46.4     .6
        | .00  .00  .00   .08   .12   .15   .1           |  116.1   13.2
ngs  49 | .01 -.04 -.01  -.02   .04  -.06  -.2  .13  .13 |   -2.3   11.9   80.1
        | .01  .01  .00   .21   .30   .32   .1           |    6.1   13.7
sio  124| .01  .02  .03   .02  1.22  -.07   .7  453 6.97 |     .0     .0     .0
        | .01  .01  .00   .28   .38   .24   .4           |     .0     .0

Table 1.0886.b   GPS week : 0886   MJD: 50446.0-50452.0

         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   2   3   3   2   2   2 |
   2E |   4   3   3   3   3   3   3 |
   3  |   2   3   3   3   3   3   3 |
   4  |   4   3   4   3   3   4   3 |
   5E |   3   4   3   3   3   3   3 |
   6  |   3   4   3   3   3   3   3 |
   7  |   3   3   5   4   3   3   4 |
   9  |   3   3   3   3   2   2   3 |
  10E |   5  23   0   7   6   6   6 | Modeling problems on days 112.
  14E |   6   7  22   5   4   4   3 | Modeling problems on day 2.
  15  |   3   3   4   2   3   3   2 |
  16E |   3  56   4   4   0  11   5 | Modeling problems(1)/Maneuver(4-5).
  17  |   3   3   4   3   3   3   2 |
  18  |   3   2   3   3   3   3   3 |
  19  |   2   2   3   2   4   3   2 |
  21E |   3   4   3   3   3   3   3 |
  22E |   4   5   4   4   3   3   4 |
  23E |   4   3   4   5   5   5   3 |
  24  |   3   4   4   3   3   3   3 |
  25  |   3   3   4   3   3   2   2 |
  26  |   2   3   3   2   3   2   2 |
  27  |   3   3   4   3   3   3   3 |
  29  |   3   3   3   3   2   3   3 |
  30E |   4   4   4   4   4   4   4 |
  31  |   2   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 2.0886.0   GPS week: 0886   Day: 0   MJD: 50446.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .01  .03  .01  -.28  -.16   .29  -.2  .06  .05 |   -5.2   17.5    1.3
emr  30 |-.01  .01 -.02   .16   .10   .04  -.4  .09  .08 |  225.8   46.4     .8
esa  57 | .00 -.01  .01  -.05   .19  -.03   .2  .09  .07 |  -35.8  -16.8    1.7
gfz  50 | .00 -.02  .00   .33  -.05  -.12  -.1  .06  .05 |  227.6   46.4     .7
igr  n/a| .01  .00  .00   .07   .03   .06  -.1  .05  .04 |    2.4   -3.4     .8
jpl  37 |-.01  .01  .01  -.23   .01   .02   .5  .05  .05 |  227.4   46.4     .8
ngs  53 | .00 -.04 -.01   .29   .13  -.14  -.1  .11  .13 |   -4.8   20.4   77.9
sio  134| .00  .02  .04  -.23  1.00  -.14  1.2  .09  .09 |     .0     .0     .0

Table 2.0886.1   GPS week: 0886   Day: 1   MJD: 50447.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  85 | .01  .03  .02  -.45   .01  -.06  -.2  .17  .07 |   -2.0    2.4    1.0
emr  31 |-.02  .01  .00   .34   .13   .76  -.1  .09  .08 |  265.0   33.9     .5
esa  59 | .00  .00  .00   .01  -.09  -.27   .4  .17  .09 |  -10.2  -21.4    4.9
gfz  51 | .01 -.01 -.01   .06   .06  -.23  -.2  .04  .04 |  266.5   34.5     .4
igr  n/a| .00  .00  .00   .22   .16   .03   .0  .30  .04 |    3.6   -7.2    1.1
jpl  37 | .00  .01  .00  -.03  -.26  -.09   .7  .11  .11 |  266.3   34.1     .6
ngs  51 | .02 -.03 -.01  -.34   .07   .17  -.2  .14  .14 |     .6    3.0   81.8
sio  129| .02  .01  .04  -.39  1.35   .06  1.1  .17  .14 |     .0     .0     .0

Table 2.0886.2   GPS week: 0886   Day: 2   MJD: 50448.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  85 | .00  .02  .01  -.14  -.03   .04  -.1  .07  .05 |    1.9    4.6    1.0
emr  28 |-.01  .00 -.01   .18   .09   .76  -.3  .11  .11 |  306.1   29.3     .5
esa  57 | .01 -.01  .00   .19  -.18  -.02   .1  .09  .08 |   33.1  -26.5    1.7
gfz  45 | .01 -.02  .00   .07   .01  -.28  -.3  .06  .06 |  307.7   29.3     .4
igr  n/a| .01  .01 -.01   .12   .01   .03   .1  .22  .06 |     .0     .6    1.0
jpl  37 | .00  .01  .01  -.08  -.09  -.15   .5  .07  .06 |  307.5   29.3     .5
ngs  48 | .01 -.04 -.01   .08   .57   .32  -.4  .14  .14 |    9.9  -11.8   78.6
sio  117| .01  .01  .03   .02  1.04   .39   .9  .15  .10 |     .0     .0     .0

Table 2.0886.3   GPS week: 0886   Day: 3   MJD: 50449.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 |-.01  .02  .02  -.33  -.02   .11  -.2  .06  .05 |    5.6    5.2    1.2
emr  27 |-.02  .02 -.01   .09  -.10  -.16  -.3  .10  .10 |  330.7   48.2     .5
esa  57 | .01  .00  .00   .25   .08   .06   .1  .09  .06 |  -12.8  -19.9    3.3
gfz  48 | .01 -.03 -.01   .18   .17  -.23  -.1  .06  .06 |  332.1   48.9     .5
igr  n/a| .00  .01  .00   .37  -.15   .25  -.1  .07  .07 |   -1.6    4.3     .6
jpl  36 | .00  .01  .00  -.09  -.15   .29   .4  .05  .05 |  332.0   48.7     .5
ngs  44 | .01 -.05  .00   .01   .20  -.06  -.3  .13  .13 |   -5.1   16.4   80.3
sio  114| .00  .03  .03   .12  1.05  -.27   .9  .10  .08 |     .0     .0     .0

Table 2.0886.4   GPS week: 0886   Day: 4   MJD: 50450.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  74 | .00  .02  .01  -.31   .01   .17  -.3  .07  .05 |  -15.1   24.0    1.1
emr  26 |-.02  .02 -.03   .13  -.04  -.15  -.5  .11  .11 |  357.5   63.5     .5
esa  55 | .01  .00  .00   .02  -.08  -.07  -.1  .07  .06 |   -8.3  -20.4    5.7
gfz  45 | .00 -.02 -.01   .27   .02  -.15  -.2  .08  .06 |  359.1   63.7     .5
igr  n/a| .01  .00 -.01   .08   .00   .37  -.2  .05  .05 |   -3.0    7.0     .5
jpl  37 | .00  .01  .00  -.06  -.29   .15   .5  .05  .05 |  359.0   63.4     .5
ngs  47 | .01 -.03 -.01   .03  -.16   .20  -.2  .13  .14 |   -8.5   21.7   80.7
sio  127| .00  .01  .03  -.03   .86  -.02   .7 119918.43 |     .0     .0     .0

Table 2.0886.5   GPS week: 0886   Day: 5   MJD: 50451.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  75 | .00  .03  .00  -.44   .05  -.03  -.2  .07  .05 |   11.2  -14.0    1.1
emr  27 |-.01 -.01 -.02   .39   .11   .34  -.3  .10  .10 |  406.8   39.8     .7
esa  55 | .01  .00  .01   .21  -.07  -.07   .0  .07  .06 |   -2.2   17.5    1.4
gfz  48 | .00 -.02 -.01   .25   .15  -.12  -.2  .06  .06 |  408.4   40.0     .6
igr  n/a| .01  .01  .00  -.02   .16   .26   .0  .05  .05 |    3.3   -8.2     .6
jpl  37 | .00  .01  .01  -.07  -.07   .12   .5  .05  .05 |  408.1   40.1     .6
ngs  51 | .03 -.03 -.01  -.23  -.25  -.34  -.2  .12  .13 |   -2.1    5.5   79.2
sio  124| .00  .01  .03   .25  1.25  -.23   .6  .08  .08 |     .0     .0     .0

Table 2.0886.6   GPS week: 0886   Day: 6   MJD: 50452.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  77 | .00  .04  .01  -.32   .06   .36  -.2  .06  .06 |   -4.0   27.7    1.0
emr  29 |-.01  .00  .00   .37   .09   .52  -.4  .08  .08 |   51.4   62.4     .5
esa  53 | .00  .00  .00  -.02  -.18  -.24  -.1  .07  .07 |   51.4   49.8    2.4
gfz  47 | .00 -.02 -.01   .24   .08  -.24  -.1  .05  .05 |   52.6   63.1     .5
igr  n/a| .00  .01  .00  -.11   .19   .20   .0  .05  .05 |   -3.8   11.1     .5
jpl  37 | .00  .02  .00  -.24  -.01   .09   .4  .05  .05 |   52.6   62.9     .5
ngs  52 | .00 -.04 -.01  -.01  -.28  -.57   .1  .12  .13 |   -5.8   27.9   82.0
sio  124| .01  .01  .02   .42  1.99  -.26  -.2  .09  .09 |     .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 3.0886.0   GPS week: 0886   Day: 0   MJD: 50446.0

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

Table 3.0886.1   GPS week: 0886   Day: 1   MJD: 50447.0

               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   5   4   3   5   5   9    2 |    3   9  11   6   7   7  10   9    4
   2  |   8   8  11   3   4   9  13  14    3 |    5  11  14   9   9   7  18  12    8
   3  |   6   9  10   5   3   6   8  13    3 |    4   7  16  11   6   3  11  10    6
   4  |   7   8   7   4   5   6  12  12    3 |    6  10  13   9   9   6  16   8    7
   5E |   8   7  13   6   2   8  11  12    4 |    7  12  19  11  10   7  15  10    9
   6  |   6  11  23   4   2   7  11   8    4 |    4  13  16  11   8   5  16   8    7
   7  |   7  10  10   3   6   7   7  12    3 |    4  10  14   9   7   5  12   9    6
   9  |   6   6  16   4   2   5   9  11    3 |    5   8  19   6   6   5   9  12    5
  10E |  45  27  48 ---  23 ---  40  59   23 |    0   0   0 ---   0 ---   0   0  ---
  14  |   8   8  46   6   3   9   9  11    7 |    9  16  19  11  11   9  15   7    9
  15  |   6   7  10   3   3   5  10  11    3 |    3  11  15   7   9   6  16   9    6
  16  |  66 --- --- --- 147  48 --- ---   56 |    0 --- --- ---   0   0 --- ---  ---
  17  |   7   6   5   3   4   5  13   8    3 |    3  10  12   9   9   3  18   9    7
  18  |   5   7   3   3   5   4   5  17    2 |    4   9  11   6   7   5  10  15    5
  19  |   4   6   5   3   3   5   8  10    2 |   11  14  14  11  13  12  18  11   12
  21E |   6  11  16   5   3   6   8  10    4 |   11  20  14  17  14  16  16  15   14
  22  |   5  10  12 ---   4   6  15  10    5 |    7  16  20 ---  12   9  15  11   11
  23  |   9   5   9   3   2   3   9  10    3 |   20  25  26  25  22  23  25  28   23
  24  |   8   6   6   7   5   7  18  16    4 |    6  10  12  11   9   5  18  14    8
  25  |   6   5   5   5   3   4  16   8    3 |    3   8  12   9   7   6  12   9    6
  26  |   8   5   9   3   5   6  15  19    3 |    2   9  14   8  11   8  18  24    7
  27  |   3   8   9   2   3   5  16  13    3 |    5  10  11   7   8   5  19  10    7
  29  |   6   4   6   4   5   5  19   9    3 |    3   6   9   6   8   5  16   8    4
  30E |   9  12  10   6   3   9  17  11    4 |    8  16  16  15  12   9  25   9   12
  31  |   7   5   9   4   2   6   9  11    3 |    4   9  12   8   7   5  13  10    5
------|--------------------------------------|--------------------------------------
 RMS  |  17   9  17   4  30  11  14  17      |T   7  12  15  10  10   8  16  12    9
 WRMS |   7   8   9   4   4  11  14  14      |NE  6  11  15  10   9   7  15  12    8
 MEDI |   7   7  10   4   3   6  11  11      |MD  5  10  14   9   9   6  16  10    7

Table 3.0886.2   GPS week: 0886   Day: 2   MJD: 50448.0

               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   7  11   7   9   9    3 |    3   6   6   6  10   5   8   9    3
   2  |   5  13   9   4   4   5  10  11    3 |    6  13   7   8   9   4  15   9    6
   3  |   4   8   6   7   3   5  10   8    3 |    3   8   5  10   7   5  11   9    5
   4  |   7   8  10   9   5   5  14   9    4 |    3  12   9  11   9   5  16  12    6
   5  |   6  11   9   6   5   5   9   9    3 |    9  14  11  12  10  10  18  12   11
   6  |   6  10   4   8   6   6   9   9    3 |    6  12  11   8   8   5  11   9    5
   7  |   7  21  10   8   5   7  11  10    5 |    4  20   9  11   8   5  15   8    6
   9  |   5  11   8   3   5   5  16  10    3 |    5  11  12   7   7   6  13  12    6
  10E |   2 --- --- ---  72 --- ---  41    0 |    0 --- --- ---   0 --- ---   0  ---
  14  |  21 --- --- ---  77  24 ---  28   22 |    0 --- --- ---   0   0 ---   0  ---
  15  |   6   7  10   4   3   5  20  10    4 |    4  10  10   9   5   4  17  11    4
  16  |   7 --- ---   5   4   3  13  27    4 |    8 --- ---   9   9  10  14  13    8
  17  |   4  19   4   6   4   5   9  11    4 |    4  20   7   9   7   3  15  10    6
  18  |   5   7  15   7   3   3   8  12    3 |    3  10  13   7   6   4  11  12    4
  19  |   5   8   3   5   4   6   9   8    3 |    9  14  10   9  12   9  17  11    9
  21E |   5   9   7   6   7   7  10  11    3 |   11  12  10  11  12  12  14  12    9
  22  |   5  10  11   6   6   6  23  13    4 |    7  14  12  12   9   8  16   7    8
  23  |   6  10  17   6   4   3  12   8    4 |   26  25  17  26  27  25  30  30   25
  24  |   6  13  13   9   9   7  17  13    4 |    5  13   8  11  10   4  20  13    6
  25  |   5  11   6   5   7   9  25  10    4 |    5  12   9   7   9   7  20   9    6
  26  |   5  11   8   3   3   5  13  13    3 |    5  11   9   6   6   5  12  15    4
  27  |   5  11  11   4   4   4  18  12    4 |    5  11   6   8   8   4  18  12    5
  29  |   4   6   8   6   7   4  21  10    3 |    5   8   7  11   8   5  19  11    5
  30E |   6  14  11   7   6   7  16   8    4 |   13  19  14  17  12  11  22  12   13
  31  |   4  10   8   5   6   7   9   7    3 |    4   8   6   8   9   6  11   6    5
------|--------------------------------------|--------------------------------------
 RMS  |   7  11   9   6  22   7  14  15      |T   8  13   9  10  10   8  16  12    8
 WRMS |   5  11   8   6   6   6  14  10      |NE  7  13   9  10   9   7  16  12    8
 MEDI |   5  10   9   6   5   5  12  10      |MD  5  12   9   9   9   5  15  11    6

Table 3.0886.3   GPS week: 0886   Day: 3   MJD: 50449.0

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

Table 3.0886.4   GPS week: 0886   Day: 4   MJD: 50450.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   5   7   3   4   8   4  11   5    2 |    3  11   6   7  10   3  14   9    5
   2  |   5  14   7   7   5   6  13   7    3 |    6  11   9  12   8   6  16  10    8
   3  |   4  10   6   7   6   4  11   6    3 |    4   8   6   9   7   4  11   6    5
   4  |   6   9   6   6   5   6  13   5    3 |    4  13   8   9   8   7  15   6    6
   5  |   7   9   5   7   4   4  12   6    3 |    7   9   7   9   7   5  13   7    6
   6  |   7   8   6  12   3   5  10   7    3 |    5   8   6  11   6   4  13  10    5
   7  |   5   9   7   6   4   5  10   7    3 |    3  11   6   9   6   3  12   5    5
   9  |   4   5   6   4   4   3   9   6    2 |    4   6  11   7   6   5   8   6    5
  10E |  10  19   9  10   5 ---  20  15    6 |   12  17  17  16  12 ---  20  10   13
  14E |   7   8   9   7  10   9  15  10    4 |   18  19  26  21  25  20  23  19   20
  15  |   5   8   5   6   2   3  12  10    3 |    4   9   9   8   5   5  11  11    6
  16E | --- ---   1 --- --- --- --- >>>    0 |  --- ---   0 --- --- --- ---   0  ---
  17  |   5  10   5   6   6   3  20   6    3 |    5  10   5  10   5   5  22   5    5
  18  |   3   9  10   9   4   3   6  13    3 |    4   9   8   8   6   5   8  13    6
  19  |  12  14  12   8   6   4   6   8    4 |   24  23  19  30  24  22  20  24   22
  21E |   7   9   5   9   3   5  12   9    3 |    9  13  11  12   8   8  15  11    8
  22  |   5  11   7   7   7   4  14  10    3 |    6  11  10  11  10   6  16   6    7
  23E |  16  12  12  12   8   9  14  10    5 |   23  28  27  29  24  26  30  23   25
  24  |   6  13   5   7   6   7  15   6    3 |    5  12   8   9   8   9  17   6    7
  25  |   6  13   5   6   8   4  18   5    3 |    7  15   7   9   9   9  21   6    8
  26  |   5  12   6   5   4   4   9   5    3 |    4  10  10   6   5   5   7   6    4
  27  |   6   9   5   4   5   3  21   7    3 |    3   7   9   6   6   4  19   7    5
  29  |   4   5   4   5   4   3  17   7    2 |    5   9   8   9   7   6  17  11    7
  30E |   5  18   5   9   4   6  13   8    4 |    9  15  12  13   8  10  18  12    9
  31  |   4   8   8   9   4   6   9   5    3 |    3   9   8  13   6   4  14   4    5
------|--------------------------------------|--------------------------------------
 RMS  |   7  11   7   8   5   5  13 >>>      |T   9  13  12  13  11   9  16  11   10
 WRMS |   5  11   6   6   5   5  14 >>>      |NE  7  11   8  11   8   7  15   9    7
 MEDI |   5   9   6   7   5   4  13   7      |MD  5  11   9   9   8   5  16   8    6

Table 3.0886.5   GPS week: 0886   Day: 5   MJD: 50451.0

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

Table 3.0886.6   GPS week: 0886   Day: 6   MJD: 50452.0

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

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 4.0886   GPS week: 0886   MJD: 50446.0-50452.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2379 |U  48   35   80 |U  38   30   80 |   31   22   51 |
emr | emr 2238 |   42   29   78 |   32   23   71 |U  27   15   43 |
esa | esa 1938 |   40   30   82 |U  38   27   80 |   33   22   46 |
gfz | gfz 1133 |   37   31   80 |U  31   24   73 |   29   16   47 |
igr | igr 2355 |   38   30   76 |   30   24   68 |   26   15   39 |
igs | igs 2386 |   37   30   74 |   29   23   68 |   24   15   38 |
jpl | jpl 2268 |U  45   29   75 |U  29   22   66 |   25   15   40 |

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 5.0886.0   GPS week: 0886   Day: 0   MJD: 50446.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2391 |   53   35   71 |   40   28   81 |   28   21   55 |
emr | emr 2373 |   32   24   60 |   30   23   73 |   24   13   40 |
esa | esa 2098 |   32   23   69 |   33   28   73 |   27   20   46 |
gfz | gfz 1192 |   35   28   66 |   30   28   79 |   20   15   35 |
igr | igr 2381 |   35   27   60 |   30   25   75 |   25   14   42 |
igs | igs 2400 |   33   25   63 |   30   22   70 |   23   14   42 |
jpl | jpl 2298 |   45   25   63 |   26   24   73 |   25   13   41 |

Table 5.0886.1   GPS week: 0886   Day: 1   MJD: 50447.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   47   34   79 |   35   26   78 |   33   22   49 |
emr | emr 2208 |   44   31   75 |   28   21   77 |   37   17   60 |
esa | esa 1819 |   44   33   80 |   40   24   87 |   54   28   56 |
gfz | gfz 1049 |   43   35   79 |   32   24   81 |   47   18   81 |
igr | igr 2400 |   38   30   80 |   30   24   75 |   32   17   45 |
igs | igs 2400 |   38   31   76 |   26   21   69 |   30   17   38 |
jpl | jpl 2299 |   44   28   75 |   26   20   69 |   28   18   37 |

Table 5.0886.2   GPS week: 0886   Day: 2   MJD: 50448.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |    0    0    0 |   31   28   67 |   33   21   51 |
emr | emr 2106 |    0    0    0 |   28   18   49 |   32   17   43 |
esa | esa 1824 |    0    0    0 |   28   25   71 |   33   23   46 |
gfz | gfz 1099 |    0    0    0 |   27   22   49 |   31   14   38 |
igr | igr 2381 |    0    0    0 |   23   20   50 |   32   18   41 |
igs | igs 2400 |    0    0    0 |   24   21   53 |   26   15   35 |
jpl | jpl 2302 |    0    0    0 |   22   18   42 |   24   14   35 |

Table 5.0886.3   GPS week: 0886   Day: 3   MJD: 50449.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2381 |   49   34   82 |   44   31  106 |   33   20   52 |
emr | emr 2176 |   50   28   84 |   40   23   95 |   26   13   38 |
esa | esa 2068 |   46   28   86 |   41   28   94 |   28   25   44 |
gfz | gfz 1189 |   37   30   72 |   43   28  105 |   25   12   38 |
igr | igr 2355 |   46   30   80 |   37   26   91 |   23   11   37 |
igs | igs 2400 |   44   30   77 |   37   24   89 |   24   12   38 |
jpl | jpl 2298 |   49   28   82 |   38   22   86 |   26   12   39 |

Table 5.0886.4   GPS week: 0886   Day: 4   MJD: 50450.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2283 |   43   36   84 |   39   28   73 |   28   26   56 |
emr | emr 2245 |   41   27   81 |   28   22   65 |   21   14   37 |
esa | esa 1909 |   32   33   78 |   27   24   76 |   25   14   40 |
gfz | gfz 1140 |   32   28   76 |   26   20   47 |   21   16   41 |
igr | igr 2296 |   31   28   73 |   24   22   56 |   21   14   36 |
igs | igs 2304 |   32   30   74 |   26   22   61 |   21   16   39 |
jpl | jpl 2196 |   42   28   71 |   25   18   60 |   22   15   41 |

Table 5.0886.5   GPS week: 0886   Day: 5   MJD: 50451.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |   48   37   83 |   40   35   79 |   32   25   53 |
emr | emr 2255 |   37   34   86 |   30   27   69 |   27   20   43 |
esa | esa 2035 |   39   32   84 |   37   28   79 |   28   21   44 |
gfz | gfz 1117 |   33   33   99 |   25   27   75 |   30   22   48 |
igr | igr 2284 |   36   33   88 |   28   26   67 |   27   18   41 |
igs | igs 2399 |   35   32   79 |   28   27   70 |   25   19   39 |
jpl | jpl 2195 |   47   33   83 |   28   25   66 |   28   20   46 |

Table 5.0886.6   GPS week: 0886   Day: 6   MJD: 50452.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   45   34   81 |   37   28   72 |   28   20   42 |
emr | emr 2301 |   43   30   82 |   38   25   64 |   19   12   36 |
esa | esa 1816 |   47   30   92 |   51   30   78 |   24   19   45 |
gfz | gfz 1144 |   39   31   86 |   28   20   53 |   19   15   28 |
igr | igr 2390 |   42   28   70 |   33   26   54 |   21   12   33 |
igs | igs 2400 |   41   30   72 |   32   25   59 |   20   13   31 |
jpl | jpl 2287 |   45   28   74 |   35   25   56 |   18   13   37 |

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