Subject: [IGSREPORT-2847] Wk 0862 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Wed, 31 Jul 1996 7:15:02 PDT

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IGS Electronic Report    Wed Jul 31  7:15:02 PDT 1996      Message Number 2847
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0862 IGS Final Orbits

Final IGS Orbit Combination - Week 0862   (Jul 14, 1996 - Jul 20, 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 (IGS08627.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:

 IGS08620-6.SP3  IGS GPS ephemeris files for days 0-6, week 0862 in SP3 format.
 IGS08627.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08627.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. Centre clock weights were determined using the following non-SA satellites:
   PRN15 and PRN28.

4. There was a maneuver of PRN14 on day 2 (Jul 16) (ref. NANU 117-96198).
   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. The ESA and the combined
   solutions for PRN14 were excluded from the long arc evaluation on 
   day 2 due to unrealistic RMS caused by the maneuver.

5. Higher clock RMS for NGS on day 4 (Jul 18) was caused by clock jumps
   on PRN26.

6. Some clock solutions were excluded from combination due to large clock
   shifts/outliers/rms that were biasing the combined clock solution, but were
   kept for the RMS computation. The following table lists the exclusions:

                 Day  (Date)   |   PRN    | Centres 
                ---------------+----------+---------
                  1   (Jul 15) |   ALL    |   ESA COD
                ---------------+----------+---------
                  3   (Jul 17) |   ALL    |   ESA   
                ---------------+----------+---------
                  5   (Jul 19) |   ALL    |   ESA COD  
                ---------------+----------+---------
                  6   (Jul 20) |   ALL    |   ESA COD  

   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.

7. State vector resets were modeled for the following satellites to
   alleviate the effects of modelling problems, experienced by all centres,
   in the long arc process:

          Day (Date) |   TIME   |  PRN  | Centres  | Reason
         ------------+----------+-------+------------------------------
          2 (Jul 16) | 00:00:00 |  14   |   ALL    | Manoeuvre         (a)
          3 (Jul 17) | 12:00:00 |  16   |   ALL    | Modeling problems
          6 (Jul 20) | 00:00:00 |  19   |   ALL    | Modeling problems

   (a) Due to unrealistic long arc RMS, PRN14 was excluded from the long arc 
       evaluation on day 2 for ACs that submitted solutions for this satellite
       (ESA,IGR,IGS);

8. Starting with GPS week 0860, several modifications have taken place in the
   IGS combination.  Please refer to the IGS Final Report for GPS week 0860
   (IGS Report #2817 and IGS Mail #1391) for a description of these changes.

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS08627.SUM).

Table 1: Week 0862 summary.                       (Jul 14, 1996 - Jul 20, 1996)

Table 1.0862.a   GPS week: 0862   MJD: 50278.0-50284.0

         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  70 | .01  .01  .01  -.39  -.04   .03  -.1  .07  .05 |   -1.6    2.5    1.7
        | .00  .00  .00   .07   .10   .02   .1           |    5.8    8.1
emr  29 |-.01 -.01 -.01   .30   .22   .72   .1  .16  .14 |  100.0   36.4     .5
        | .01  .01  .01   .18   .27   .29   .2           |   81.2    8.1
esa  52 | .00 -.01  .00   .16  -.11   .36   .1  .09  .08 |    5.8   16.4    2.4
        | .00  .00  .01   .17   .17   .18   .1           |   24.4   11.7
gfz  48 | .01 -.02  .00   .00  -.18  -.21  -.1  .11  .11 |  100.0   36.1     .4
        | .01  .00  .01   .14   .09   .09   .1           |   81.2    8.1
igr  n/a| .01 -.01 -.01   .01   .02   .01   .0  .12  .10 |    1.5   -1.6    1.5
        | .01  .01  .01   .12   .35   .10   .0           |    1.0    3.0
jpl  37 |-.01  .01  .01   .07   .09   .02   .0  .05  .05 |  100.0   32.2     .5
        | .01  .00  .00   .11   .10   .12   .1           |   95.8   17.6
ngs  46 | .00 -.06 -.01   .33   .07  -.21   .0  .18  .17 |   -3.5    6.1  179.5
        | .01  .01  .01   .35   .26   .38   .1           |    5.1    7.1
sio  110| .00  .01 -.01  -.02   .10  -.32   .2  .09  .09 |     .0     .0     .0
        | .00  .01  .00   .15   .08   .20   .1           |     .0     .0

Table 1.0862.b   GPS week : 0862   MJD: 50278.0-50284.0

         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   3   3   3   3   3 |
   2  |   3   3   3   3   3   3   3 |
   3  |   3   3   3   6   4   4   5 |
   4  |   3   2   3   3   3   2   3 |
   5  |   3   2   3   4   3   3   3 |
   6  |   2   3   2   4   3   3   3 |
   7  |   3   3   3   3   3   2   3 |
   9  |   3   3   3   4   3   3   4 |
  14E |   4  19   0   6   4   4   6 | Modelling problem day 1, manoeuvre day 2.
  15  |   3   4   4   4   4   4   5 |
  16E |   3   3   5  39   8   6   6 | Modelling problem day 3.
  17  |   3   3   2   3   2   2   2 |
  18  |   3   4   3   3   2   3   4 |
  19  |   2   3   3   3   3   3   9 |
  20  | --- ---   0 ---   0   0   0 | Satellite in end of life cycle.
  21E |   4   5   4   4   4   4   4 |
  22  |   3   3   3   3   3   3   3 |
  23E |   5   6   6   6   5   4   4 |
  24  |   3   3   3   4   3   2   3 |
  25  |   3   3   3   3   3   3   4 |
  26  |   3   3   3   4   2   2   3 |
  27  |   2   3   2   3   3   3   3 |
  28  |   3   3   3   3   3   3   3 |
  29  |   3   3   3   4   3   3   3 |
  31  |   3   3   3   6   3   3   4 |

Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

Table 2.0862.0   GPS week: 0862   Day: 0   MJD: 50278.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  68 | .01  .01  .00  -.39   .12   .07  -.1  .06  .06 |   -5.6    4.7    1.4
emr  31 |-.01  .00 -.02   .09   .12   .60   .2  .12  .11 | 1327.1   37.2     .6
esa  50 | .00 -.01 -.01  -.02  -.26   .22   .2  .08  .07 |    1.8    9.5     .8
gfz  50 | .00 -.01  .00  -.03  -.05  -.14  -.1  .07  .07 | 1328.8   37.0     .5
igr  n/a| .01 -.01  .00   .03  -.30  -.03   .0  .05  .05 |    1.3   -5.1     .5
jpl  37 |-.01  .01  .01   .08   .02  -.09   .1  .05  .05 | 1327.9   37.5     .5
ngs  47 | .01 -.05 -.02   .70  -.33   .34   .0  .16  .16 |   -2.4    2.9   78.8
sio  109| .00  .01 -.01   .11   .09  -.42   .1  .07  .07 |     .0     .0     .0

Table 2.0862.1   GPS week: 0862   Day: 1   MJD: 50279.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  73 | .01  .01  .00  -.44   .02   .05  -.1  .06  .05 |     .6   -4.1    2.0
emr  29 | .01 -.01 -.02   .50   .57  1.00   .1  .16  .13 | 1377.1   27.2     .3
esa  53 | .00 -.01  .01  -.02   .00   .17   .2  .10  .09 |   -2.0   25.5    2.4
gfz  50 | .00 -.02  .00   .00  -.14  -.17   .0  .07  .07 | 1378.0   27.2     .2
igr  n/a| .02 -.01 -.01   .15  -.03  -.10   .0  .08  .06 |    1.9   -2.1     .3
jpl  37 |-.01  .02  .01   .00   .03  -.05   .1  .05  .05 | 1377.9   27.4     .3
ngs  47 | .00 -.07  .01   .74   .08  -.54   .0  .15  .15 |   -1.3    2.1   75.7
sio  115| .00  .00 -.01   .16   .02   .00   .3  .09  .09 |     .0     .0     .0

Table 2.0862.2   GPS week: 0862   Day: 2   MJD: 50280.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  73 | .00  .02  .01  -.28  -.11   .04  -.3  .05  .05 |    3.3   -1.7    1.4
emr  28 | .00 -.01 -.02   .09   .20   .66   .3  .13  .11 | 1407.2   48.2     .6
esa  53 | .00  .00  .00   .16  -.13   .36   .3  .08  .07 |  -24.2   26.0    1.0
gfz  49 | .01 -.02 -.01   .06  -.17  -.26   .0  .08  .07 | 1410.2   47.2     .5
igr  n/a| .01  .00 -.02   .13   .14  -.08   .0  .06  .06 |     .0    -.2     .5
jpl  37 |-.01  .01  .01   .18   .06  -.03   .0  .04  .04 | 1409.1   48.4     .5
ngs  48 | .00 -.05 -.02  -.20   .22   .26   .0  .18  .17 |    3.6   -3.9   78.6
sio  114| .00  .01  .00  -.17   .23  -.52   .1  .07  .07 |     .0     .0     .0

Table 2.0862.3   GPS week: 0862   Day: 3   MJD: 50281.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  72 | .00  .02  .00  -.34  -.20   .04  -.1  .09  .05 |    3.5    -.7    1.4
emr  28 |-.02 -.01  .00   .15  -.24   .46   .0  .16  .14 | 1453.2   33.7     .6
esa  53 | .00  .00 -.01   .09   .22   .67   .0  .10  .08 |   54.5    7.2    3.4
gfz  50 | .03 -.01 -.02  -.26  -.23  -.06  -.2  .22  .22 | 1454.7   32.9     .5
igr  n/a| .01  .00  .00  -.18  -.07   .03   .0  .13  .07 |    2.8   -4.3     .7
jpl  37 | .00  .01  .02   .18   .02  -.10  -.1  .05  .05 | 1454.8   33.7     .6
ngs  45 |-.02 -.07 -.03   .54   .24  -.35  -.3  .24  .20 |     .0    2.9   80.0
sio  110| .00  .00 -.01  -.25   .17  -.55   .2  .16  .16 |     .0     .0     .0

Table 2.0862.4   GPS week: 0862   Day: 4   MJD: 50282.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  71 | .01  .01  .00  -.47  -.03   .00   .0  .06  .05 |    4.1   -7.0    1.4
emr  30 |-.01 -.02  .00   .34   .25   .83   .4  .16  .14 | 1491.5   25.8     .8
esa  52 | .00  .00 -.01   .15  -.11   .27   .0  .09  .08 |   14.9     .2    1.4
gfz  48 | .00 -.02  .00   .16  -.15  -.26   .0  .07  .07 | 1493.4   25.3     .6
igr  n/a| .01 -.01 -.01   .10  -.21   .11   .1  .06  .06 |    2.2   -2.8     .7
jpl  37 |-.01  .02  .01   .13   .10   .08  -.2  .05  .05 | 1584.2   -4.8     .6
ngs  47 | .01 -.05 -.01   .04   .00  -.60  -.1  .16  .16 |   -6.2   16.8  434.7
sio  110| .00  .02 -.01   .03   .02  -.20   .1  .07  .07 |     .0     .0     .0

Table 2.0862.5   GPS week: 0862   Day: 5   MJD: 50283.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  69 | .00  .01  .01  -.36  -.05   .01   .0  .06  .05 |   -6.9   12.1    2.1
emr  28 |-.01 -.02  .02   .37   .16  1.14   .0  .17  .15 | 1517.1   42.4     .4
esa  51 | .00  .00 -.01   .31  -.19   .53   .1  .09  .07 |   -3.5   32.0    2.5
gfz  46 | .00 -.02 -.01   .14  -.22  -.34  -.1  .06  .06 | 1518.9   42.7     .2
igr  n/a| .00  .00 -.02  -.06  -.14   .17   .0  .08  .08 |     .6    -.7    2.4
jpl  37 | .00  .01  .01  -.11   .30   .13   .0  .05  .05 | 1519.0   42.6     .3
ngs  44 | .00 -.04  .00   .27  -.15  -.46   .1  .16  .16 |   -5.9    9.2   77.6
sio  109| .00  .01  .00   .02   .03  -.36   .2  .07  .07 |     .0     .0     .0

Table 2.0862.6   GPS week: 0862   Day: 6   MJD: 50284.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  65 | .01  .01  .01  -.48  -.03   .04  -.1  .08  .06 |  -10.2   14.0    2.0
emr  27 |-.02 -.01 -.01   .53   .51   .33   .0  .19  .16 | 1555.4   40.4     .4
esa  49 | .00 -.01  .00   .46  -.27   .26   .2  .10  .08 |   -1.0   14.5    3.4
gfz  46 | .00 -.01  .01  -.05  -.34  -.26  -.2  .10  .09 | 1556.9   40.4     .3
igr  n/a| .03 -.02 -.04  -.10   .76  -.01   .0  .25  .22 |    1.4    3.8    2.8
jpl  37 | .00  .01  .00   .01   .08   .23   .2  .08  .08 | 1556.6   40.6     .3
ngs  43 |-.02 -.05 -.02   .23   .42  -.15  -.1  .18  .18 |  -12.0   12.7   77.7
sio  106|-.01  .00 -.01  -.08   .11  -.21   .0  .08  .08 |     .0     .0     .0

Table 3: Daily fit for each satellite and each centre resulting from weighted
         average combination and from long arc orbit dynamics (7-day). The
         first IGS column gives resulting satellite accuracy measures found in
         SP3 header. The last IGS column gives the RMS fit of the IGS orbit
         when processed through the 7-day arc evaluation.

         "E" stands for  eclipsing satellites.
         "T" stands for Total long arc orbit RMS for all satellites.
         "NE" stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI","MD" stands for median of the centre's satellite RMS.

         Units: cm.

Table 3.0862.0   GPS week: 0862   Day: 0   MJD: 50278.0

               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   8   7   6   5  21   8    3 |    7  10   8   9  14   6  11   8    7
   2  |   2   9   8   9   4   4  11   6    3 |    5  12  11   7   8   6  14   5    5
   3  |   5   9   9  11   4   8  14   5    3 |    6  13   7  12   5   8  12   4    6
   4  |   5  10   9   6   7   3  16   7    3 |    7   9   6  10   9   5  15   4    6
   5  |   6  10   7  10   3   5  13   7    3 |    7  12  10  11   9   7  15   6    6
   6  |   4   9   6   7   4   5   8   7    2 |    8  14   8  11   9   7  11   5    6
   7  |   6   9   8   6   8   5  11   6    3 |    5  12  11  10  12   6  13   7    5
   9  |   8  10   6   4   4   4  10   7    3 |    8  14  11  10  10   9  10  11    9
  14E |   7  17  11   8   4   6  17  10    4 |  158  11   3   2 159   4   2 155  158
  15  |   8  15   6   6   4   4  12   4    3 |   11  18   6   6   6   5  11   5    5
  16E |   6  14   8   7   7   6  16   9    3 |   20  14  10  13  22   8  28  12   16
  17  |   6  13   6   7   5   3  10   6    3 |    5  16   6   7   7   6   9   5    4
  18  |   6  13   6   7   5   5   6   5    3 |   10  17  12  11  10   9  17   8   11
  19  |   6   6   6   3   4   4  12   7    2 |   10  11   9  10   9   9  10   8    7
  21E |   5  20   7  12   4   5  17   6    4 |    9  16   9  11   7   8  14   6    6
  22  |   4   7  14   9   7   5  13   6    3 |    6  12   9  12   9   7  11   4    6
  23E |   7  19   9  10   6   8  43   8    5 |   38  40  38  39  37  33  52  35   38
  24  |   5   6   8   7   6   4  13   6    3 |    7   8   5   9   9   5  13   4    5
  25  |   7   8   5   4   4   4  16   7    3 |   10   7   9   9   8   9  13   6    8
  26  |   3   8   6   5   3   3  16   7    3 |    9  11  13  11  14   6  18   9   11
  27  |   4   9   6   5   4   4  11   7    2 |    7  10   9  11   8   6  18   8    7
  28  |   5   8   6   7   4   6  11   5    3 |    6  12   7  10   9   8  15   5    6
  29  |   4  15   9   6   4   4  18   5    3 |    6  13   9   9   9   8  17   6    7
  31  |   4   8   6   6   3   5  15   7    3 |    5  10   6   7   4   7  12   4    4
------|--------------------------------------|--------------------------------------
 RMS  |   6  12   8   7   5   5  16   7      |T  34  14  11  12  34   9  17  33   33
 WRMS |   6  11   7   7   5   5  16   7      |NE  7  12   8   9   9   7  13   6    6
 MEDI |   6  10   7   7   4   5  13   7      |MD  7  12   9  10   9   7  13   6    6

Table 3.0862.1   GPS week: 0862   Day: 1   MJD: 50279.0

               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   8   5   7   4  17   8    3 |    6  13   7   9  12   5  21   8    6
   2  |   4  10   7   7   8   4  16   8    3 |    5  12   7  10   6   5  21   7    5
   3  |   5  13  11   6   4   6  11   8    3 |    5   9   7  11   5   7  11  10    5
   4  |   4  11   8   7   6   4   9   5    2 |    6  10   7   9  10   5  13   6    5
   5  |   5  11   7   5   3   4   9   6    2 |    5  10  11   9   8   5  11   8    5
   6  |   5   8  14   6   6   5   8   5    3 |   10  16   8  13  13   6  15  10    9
   7  |   5   9   5   9   8   5  12  11    3 |    6  11   8  10  11   5  13   9    5
   9  |   4  18   6   5   6   5  14  10    3 |    5  14   7   6   7   5  12   7    5
  14E |  15 --- --- ---  25 --- ---  23   19 |  189 --- --- --- 180 --- --- 172  182
  15  |   6  19  11   9   6   6  10  11    4 |    9  14   8   9   7   5  11  14    6
  16E |   7  14   7  10   8   6  14   7    3 |   19  18  14  18  25   9  27  14   18
  17  |   3  11   8   6   4   4  11   6    3 |    5  13   7  12   7   4  16   6    6
  18  |   8  27   8   4   5   5  10   9    4 |   10  24  12  14  10   9  12  13   10
  19  |   6  13   7   5   8   5  10   8    3 |   12  24  10  17  16  14  16  17   14
  21E |   5  37   8  12   7   6  21   6    5 |    8  28   9  11  10   8  30   9    8
  22  |   4  22  11   6   6   5  12   8    3 |    6  22  10  11   7   6  12   9    7
  23E |   9  22  23   7   8  10  37  13    6 |   36  41  42  40  38  36  75  33   37
  24  |   5   8  11   9   5   4   8   6    3 |    6  12   6  10   7   5  10   6    5
  25  |   6   8   7   5   3   4  17   8    3 |    8   9   6   6   5   5  11   5    5
  26  |   3  12   6   5   7   4  14   8    3 |    7   9  12   9   9   5  12   8    8
  27  |   5  14   8   6   6   4  14   6    3 |    7  16   6   8   8   5  13   9    6
  28  |   7   9  10   4   3   4  15   8    3 |    5  12   7  10   5   7  14   9    6
  29  |   3  15   9   4   9   4  18  13    3 |    4  12   7   7   9   6  15  13    5
  31  |   4  12  11   5   4   5  15   6    3 |    5   9   6   7   5   7  12   8    5
------|--------------------------------------|--------------------------------------
 RMS  |   6  16  10   7   8   5  15   9      |T  40  17  12  13  38   9  21  36   38
 WRMS |   5  13   9   7   6   5  15   9      |NE  6  14   8  10   8   6  13   9    6
 MEDI |   5  12   8   6   6   5  14   8      |MD  6  13   7  10   9   5  13   9    6

Table 3.0862.2   GPS week: 0862   Day: 2   MJD: 50280.0

               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  |   3  12   9   8   5   3  13   7    3 |    6  14   9  10   8   8  13   7    6
   2  |   3  10   6   8   6   4  12   8    3 |    5  11   7   8   5   4  16   7    4
   3  |   6  16   9  10   8   5  13   4    3 |    7  13   8  14   7   7  13   5    4
   4  |   5   8   6   6   6   3  17   5    3 |    6   8   4   9   8   5  12   6    4
   5  |   6  15   7   6   5   3  11  10    3 |    4  14   9  10   5   5  11   8    4
   6  |   6   8   5   8   6   3  10   5    2 |    8  13   7  11   7   7  11   4    6
   7  |   5  13   4   8   8   4  11   5    3 |    6  12   7  12  10   5  13   6    5
   9  |   6  13   8   4   4   4   9  11    3 |    6  12   9   7   7   6  11   8    6
  14E | --- ---   3 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
  15  |   4  22  12   7   4   3  12   8    4 |    6  16   9   9   6   6  12   9    4
  16E |   9  16  11  17   9   8  18  10    5 |   41  14  15  17  36  10  54  15   31
  17  |   3   8   8   7   7   4  12   6    2 |    5  13   8  11   9   6  14   5    5
  18  |   5  10   8  10   6   5   9   8    3 |   15  11  15  15  14  13  15  15   15
  19  |   6  11   6   4   5   3  14   6    3 |   15  16  16  11  15  13   8  11   13
  20  | --- --- --- --- --- --- --- ---    0 |  --- --- --- --- --- --- --- ---
  21E |   5  22   8  11   4   5  26   7    4 |    9  19   9  13   8   8  27   6    7
  22  |   7   9  12   7   7   4  16   5    3 |    9  11   9  11   6   6  15   5    4
  23E |   4  21   8   6   6   8  54   9    6 |   19  19  20  23  17  17  45  18   17
  24  |   4   7  10   8   7   4  12   7    3 |    6   7   5   9   8   6  13   6    4
  25  |   7   8   6   8   6   6   9  11    3 |    9   9   7   9   7  10  11  11    6
  26  |   3  11   6   7  10   4  17   4    3 |   11  11  12  11  14   6  15   8   11
  27  |   5  11   6   6   4   3  11   5    2 |    6  12   8   8   6   5  13   5    5
  28  |   6   9   7   7   5   4  16   7    3 |    7  10   7  10   6   7  17   5    5
  29  |   4  11   5   6   5   5  19   7    3 |    8  10   9  10   8   7  15   8    8
  31  |   4  11   8   6   7   3  12   4    3 |    5  12   6   9   5   7  12   5    4
------|--------------------------------------|--------------------------------------
 RMS  |   5  13   8   8   6   4  18   7      |T  12  12  10  11  11   8  19   8    9
 WRMS |   5  11   7   7   6   4  17   7      |NE  8  11   9  10   8   7  13   7    6
 MEDI |   5  11   8   7   6   4  12   7      |MD  7  12   9  10   8   7  13   7    5

Table 3.0862.3   GPS week: 0862   Day: 3   MJD: 50281.0

               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  10   6  16   6   4  15   8    3 |    7  13  10  18   9   6  16   8    7
   2  |   4  10   8  13   9   4  16   7    3 |    6  15  10  13   8   6  18   6    5
   3  |   7  19   9  46   5   6  19   6    6 |    8  18  10  44   5   5  16   8    5
   4  |   6   7   7  16  10   5  12   8    3 |    7  10   8  13  12   6  10   9    4
   5  |   3  20   7  32   7   3  12   9    4 |    5  17  10  28   9   7  11   7    5
   6  |   7  21  14  11   4   5  10   7    4 |    9  21  14  13  10   6  12   8    7
   7  |   5  10   6  16   8   3  19   9    3 |    5  14  10  15  10   5  18   6    4
   9  |   5  19   7  21   8   6  15   6    4 |    5  19  10  19  10   7  15   5    6
  14E |  10  15  22  30   8   5  17   8    6 |    7  15  14  24   8   4  15   5    5
  15  |   6  28  11   9   5   5  13   6    4 |    9  25  11  11   9   8  13   7    7
  16E |  32 --- --- ---  52 ---  81  70   39 |  108 --- --- ---  89 --- 109  70   83
  17  |   4  12   7  15  10   3  13   5    3 |    6  12   6  15  12   6  15   5    5
  18  |   5  13   7  23   6   4  10   6    3 |    9  13  13  16  12  10  15  10   10
  19  |   7   7   6  15   5   3   9   7    3 |   18  21  12  22  21  16  24  19   17
  21E |   4  17   9  27   8   4  19   6    4 |    9  19  12  18  10   7  24   7    7
  22  |   7  15  10  16  10   4  11   5    3 |    7  17  10  19   8   6  14   8    5
  23E |   5  18   9  26   6   8  42  12    6 |   21  24  22  36  20  23  42  26   21
  24  |   5  13   8  15   8   4  21   9    4 |    7  17   7  16   8   7  20  10    6
  25  |   5   8   8  14   4   3  11   7    3 |    8  14   7  15   7   8  11   7    7
  26  |   8  14  12  22   8   6  19   7    4 |    9  16  13  20  12  11  18  10   10
  27  |   8  11   8  14   3   4  11   7    3 |    6   9   9  15   6   6  14   8    6
  28  |   5  14  10  11   4   3  19   4    3 |    5  15   9  12   6   4  20   6    4
  29  |   4  11   6  15   6   6  22   8    4 |    5  10   8  11   9   8  21   8    6
  31  |   5  28  10  41   7   6  18   8    6 |    6  24   7  40   6   7  15   8    3
------|--------------------------------------|--------------------------------------
 RMS  |   9  16  10  22  13   5  24  16      |T  23  17  11  21  20   8  28  17   18
 WRMS |   5  14   8  22   7   5  20  16      |NE  7  16   9  20  10   7  16   8    7
 MEDI |   5  14   8  16   7   4  16   7      |MD  7  16  10  16   9   7  16   8    6

Table 3.0862.4   GPS week: 0862   Day: 4   MJD: 50282.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   5   9   7   4   5   4  16   6    3 |    7  10  10   9  14   7  15   8    8
   2  |   4  13   7   7   5   4  10   7    3 |    5  12  12  11  10   6  13   7    6
   3  |   5  23   9   5   4   6  17   5    4 |    7  18  11  11   6   7  20   6    6
   4  |   4   9   4  10   5   5  13   8    3 |    4   9   5  10   8   5  15   6    6
   5  |   7  19  10   6  10   3   8   6    3 |    5  14  11  11   9   5  13   4    6
   6  |   7  10   8   5   7   4  11   4    3 |    9  12  10  10   8   6  12   6    7
   7  |   6   9   7  12   5   5  13   7    3 |    4   9  10  11   8   6  14   5    6
   9  |   6  17   5   5   5   3   9   5    3 |    4  17   7   8   7   6  11   6    6
  14E |   5  24  14   9   6   4  19   8    4 |    7  21  15  16   6   7  16  10    6
  15  |   5  32  10   7   5   6  10   5    4 |    6  23   9   9   8   4  11   6    6
  16E |  15  26  11 ---  12 ---  32  11    8 |   51  32  16 ---  48 ---  53  41   45
  17  |   3   9   4   6   7   6  12   7    2 |    5  11   8   8  10   5  11   7    6
  18  |   5   8  10   4   5   4   8   6    2 |    9  10  10  16  11   7  13  11   10
  19  |   3   9  10   6   5   4   6   7    3 |   15  17  14  18  16  15  17  13   14
  20  | --- --- --- --- --- --- --- ---    0 |  --- --- --- --- --- --- --- ---
  21E |   5  21   9  10   8   5  16   6    4 |    9  20  16  10  10   9  24   8    9
  22  |   5   7  10   5   4   5  12   4    3 |    6  10   9  11   8   7  15   5    7
  23E |   4  23  10   7   3   8  38   9    5 |   29  31  32  28  28  25  49  27   28
  24  |   4   7   8   9   7   6  14   9    3 |    5   9   6  10   9   6  15   8    6
  25  |   7   8   7   4   5   4   8   7    3 |    9   9   9   9   6   8  14   6    8
  26  |   5   8   8   5   6   4  10   5    2 |    9  11  12  11  14   7  15   8   10
  27  |   4  17   8   6   4   5   7   5    3 |    6  20   8   9   8   6  10   7    7
  28  |   3  10   7   8   6   6  13   5    3 |    5  10   7  10   6   7  13   3    5
  29  |   4  10   8   6   5   4  17   8    3 |    5   6   8  10   8   6  17   7    6
  31  |   5  17  11   6   4   6  11   6    3 |    4  15   8   9   7   7  14   3    6
------|--------------------------------------|--------------------------------------
 RMS  |   6  16   9   7   6   5  16   7      |T  13  16  12  12  14   8  20  12   12
 WRMS |   5  14   8   7   6   5  16   7      |NE  6  13   9  10   9   6  14   6    7
 MEDI |   5  10   8   6   5   5  12   6      |MD  6  12  10  10   8   7  15   7    6

Table 3.0862.5   GPS week: 0862   Day: 5   MJD: 50283.0

               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  14   9   6  10   3  18   7    3 |    6  16   8   9  19   5  16   8    7
   2  |   5   8   5   6  14   5  19   5    3 |    5  11   8   9  11   6  18   6    6
   3  |   6  25   7   7   8   5  23   7    4 |    6  22   8  13   7   6  16   7    4
   4  |   4   7   8   6   8   3   8   5    2 |    4   9   8  13   9   5  11   4    5
   5  |   8  20   5   8   7   2  13   7    3 |    4  14   6   9  10   7  13   6    5
   6  |   6  10  10   5   7   5  13   7    3 |    7   9   8   9  12   6  12   8    6
   7  |   5   6   5   4   7   4  12   7    2 |    4   9   9   9   7   6  13   6    5
   9  |   4  19   9   4   4   4   9   6    3 |    5  17   7   6   6   5  12   7    5
  14E |   4  22  19  10   8   4  18  10    4 |   10  21  23  16   9   8  22  10    7
  15  |   9  33  10   7  12   5  16   5    4 |    8  23   9   8   9   6  14   5    3
  16E |  15  12  11 ---  10  10  29  10    6 |   28  18  12 ---  24  12  35  28   25
  17  |   5   9   5   6   5   3   8   5    2 |    5  12   9   9  10   4  10   4    5
  18  |   7  23   7   5   9   4  14   7    3 |    9  21   9  12  12   6  16   7    8
  19  |   5  19   5   5   5   4  12   6    3 |    9  17  10  14  14  13  14  13   11
  20  | --- --- --- --- --- --- --- ---    0 |  --- --- --- --- --- --- --- ---
  21E |   5  26   8  10  15   7  20   5    4 |    8  18  14  13  12   7  19   8    9
  22  |   4  12  11   8   9   4  14   6    3 |    5  13   8  10  10   6  14   6    5
  23E |   6  23  12   4   9   4  27  10    4 |   27  28  22  27  28  26  38  29   25
  24  |   3   7   6   6   5   4   8   7    2 |    5  11   6  10   9   6   9   5    5
  25  |   6  12  10   7   7   4  11   8    3 |    7  13   6   7   7   5  12   5    5
  26  |   5   5   6   5   8   4  13   4    2 |   10  18  16  15  18   7  15  13   14
  27  |   3  11   4   5   3   4  20   4    3 |    5  18   8   8   9   6  20   5    7
  28  |   4  12   7   6   7   5  13   7    3 |    5  13   8   9   8   7  15   5    5
  29  |   4  18   6   7   6   4  18   7    3 |    5  13   9   8   7   6  16   5    5
  31  |   4  21   7   5   7   3  16   5    3 |    5  16   7  10   3   5  13   3    3
------|--------------------------------------|--------------------------------------
 RMS  |   6  17   9   6   8   5  16   7      |T  10  16  10  11  12   8  17  10    9
 WRMS |   5  15   7   6   8   5  16   7      |NE  6  15   8  10  10   6  14   6    6
 MEDI |   5  13   7   6   8   4  14   7      |MD  6  16   8   9  10   6  15   6    5

Table 3.0862.6   GPS week: 0862   Day: 6   MJD: 50284.0

               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  11   6   6  53   5  18   6    3 |    7  15  11   9  26   8  16   9    9
   2  |   5   9   7   6  28   6  14   7    3 |    7  11  10  10  17   7  16   6    7
   3  |   7  29   9   7  14   4  31   9    5 |    5  25  11   9  11   7  19   4    7
   4  |   4  10   5   8  28   5  19   8    3 |    4   8   7   9  14   6  13   5    6
   5  |   7  22   6   6  29   3  12   8    3 |    5  19   9   9   9   5  11   6    5
   6  |   5  10   6   5  13   6  22   6    3 |    6  15   9   9  10   6  20   4    9
   7  |   7   8   8  10  24   7  11   6    3 |    4   9   6   9  22   5  13   5    7
   9  |   6  22   9   6  19   3  11  11    4 |    5  16   8   8  14   6  11   8    7
  14E |  12  27  25   8  56  11  23  10    6 |   12  24  19  12  22  14  19  12    9
  15  |  11  38  11   6   9   7  10   7    5 |   14  31  10   5   7   5  11   5    7
  16E |  15  32   7  17  21   6  20   8    6 |   27  28  18   8  27  14  32  24   24
  17  |   4  10   7   4   7   5  10   7    2 |    5  11   8   8   8   5  12   8    7
  18  |   5  14   9   8  20   5  21   8    4 |    8  16  17  12  15   8  22   8    9
  19  |  17  29  20  29  27  25  26  17    9 |    9   8   5   7   4   8   5   3    4
  20  | --- --- --- --- --- --- --- ---    0 |  --- --- --- --- --- --- --- ---
  21E |   5  23   8  12  31   8  18   6    4 |    8  18  13  11  12   9  15   6    7
  22  |   5  13   8   9  26   4   8   8    3 |    6  12   9  10  18   6  12   6    6
  23E |   7  20   7   9  16   8  28   5    4 |   29  39  36  37  32  29  52  34   32
  24  |   4   7   8   6  28   8  13   7    3 |    5   8   6   8  13   7  11   5    6
  25  |   5  10  11  11  22   5   8   9    4 |   10  10   9   9  10   7  11   9    8
  26  |   6   7   7   7  24   3  15   4    3 |   12  13  15  16  20   7  20  11   13
  27  |   5  15   4   9  14   6  12   8    3 |   10  20  13  11  17   6  17   7   10
  28  |   7  16   5   6   6   5  12   6    3 |    6  12   9   8   6   5  16   5    6
  29  |   3   9   7   6  16   7  18   6    3 |    7  11  14  10  17   7  20   8    8
  31  |   6  21   6  10  12   7  16  10    4 |    6  17   7   9   9   5  12   9    6
------|--------------------------------------|--------------------------------------
 RMS  |   8  19  10  10  25   8  18   8      |T  11  18  13  12  16   9  19  10   10
 WRMS |   6  16   8   9  22   8  18   8      |NE  7  15  10   9  14   6  15   6    7
 MEDI |   6  15   7   8  22   6  16   8      |MD  7  15  10   9  14   7  16   7    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 4.0862   GPS week: 0862   MJD: 50278.0-50284.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2281 |U  50   32   79 |U  48   35   98 |   41   29   69 |
emr | emr 2256 |   41   29   73 |   34   25   73 |U  26   14   43 |
esa | esa 1987 |   95   56  131 |U  66   57  150 |  105   59  169 |
gfz | gfz 1118 |   44   28   76 |U  33   30   79 |   28   16   44 |
igr | igr 2163 |   41   30   73 |   35   27   77 |   43   21   68 |
igs | igs 2283 |   38   26   68 |   35   26   74 |   32   17   51 |
jpl | jpl 2233 |U  40   26   69 |U  31   25   69 |   26   15   43 |

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 5.0862.0   GPS week: 0862   Day: 0   MJD: 50278.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2301 |   48   28   94 |   48   36  106 |   35   26   66 |
emr | emr 2304 |   37   26   91 |   37   28   82 |   27   15   45 |
esa | esa 2077 |   36   26   87 |   41   31   90 |   31   15   44 |
gfz | gfz 1152 |   38   27  110 |   39   37  103 |   30   16   46 |
igr | igr 2302 |   33   25   89 |   33   28   81 |   25   15   40 |
igs | igs 2304 |   34   24   87 |   36   28   83 |   27   15   42 |
jpl | jpl 2288 |   33   24   88 |   35   28   81 |   25   15   41 |

Table 5.0862.1   GPS week: 0862   Day: 1   MJD: 50279.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2301 |   51   28   84 |   42   31   86 |   43   28   69 |
emr | emr 2205 |   40   27   89 |   32   20   70 |   28   11   35 |
esa | esa 1988 |   95   50  145 |   86   63  168 |  117   53  163 |
gfz | gfz 1104 |   43   23   86 |   30   19   82 |   33   13   41 |
igr | igr 2301 |   39   24   75 |   28   17   64 |   28   11   38 |
igs | igs 2208 |   39   24   76 |   28   17   65 |   28   13   39 |
jpl | jpl 2196 |   35   23   72 |   26   15   64 |   28   12   40 |

Table 5.0862.2   GPS week: 0862   Day: 2   MJD: 50280.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2205 |   55   39   67 |   45   37   88 |   43   22   69 |
emr | emr 2204 |   49   33   55 |   36   26   70 |   26   12   47 |
esa | esa 2017 |   46   31   60 |   51   31   98 |   53   24   80 |
gfz | gfz 1104 |   54   32   49 |   28   19   48 |   33   14   56 |
igr | igr 2204 |   47   33   57 |   30   25   71 |   27   11   49 |
igs | igs 2250 |   46   31   55 |   48   31   89 |   54   22   83 |
jpl | jpl 2196 |   46   30   59 |   30   23   68 |   27   12   49 |

Table 5.0862.3   GPS week: 0862   Day: 3   MJD: 50281.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2301 |   40   32   71 |   49   30   90 |   41   31   66 |
emr | emr 2183 |   46   28   61 |   31   18   69 |   28   21   40 |
esa | esa 2009 |  153   61  147 |   89   86  204 |  190  114  262 |
gfz | gfz 1104 |   48   32   61 |   36   24   78 |   28   21   40 |
igr | igr 2294 |   35   30   60 |   31   19   65 |   26   18   43 |
igs | igs 2304 |   32   27   57 |   33   20   67 |   28   21   46 |
jpl | jpl 2196 |   42   28   61 |   28   20   64 |   30   20   38 |

Table 5.0862.4   GPS week: 0862   Day: 4   MJD: 50282.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2289 |   52   32   69 |   39   34   89 |   36   27   63 |
emr | emr 2301 |   38   28   62 |   26   24   57 |   21   12   38 |
esa | esa 1981 |   37   25   59 |   39   32   74 |   26   20   46 |
gfz | gfz 1104 |   43   26   49 |   26   26   63 |   15   14   35 |
igr | igr 2225 |   41   28   65 |   28   26   65 |   20   12   41 |
igs | igs 2304 |   38   25   57 |   27   26   57 |   21   15   39 |
jpl | jpl 2194 |   43   24   56 |   24   28   51 |   19   14   35 |

Table 5.0862.5   GPS week: 0862   Day: 5   MJD: 50283.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2289 |   51   34   74 |   56   38  124 |   46   34   78 |
emr | emr 2293 |   41   30   71 |   38   26   92 |   26   14   47 |
esa | esa 1923 |  109   93  195 |   67   51  157 |   87   45  136 |
gfz | gfz 1104 |   43   21   71 |   38   36  102 |   22   18   30 |
igr | igr 2235 |   41   28   78 |   41   28   99 |   94   43  138 |
igs | igs 2304 |   40   27   68 |   36   26   90 |   25   16   43 |
jpl | jpl 2272 |   42   25   67 |   36   25   88 |   27   15   45 |

Table 5.0862.6   GPS week: 0862   Day: 6   MJD: 50284.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2282 |   50   28   89 |   54   40   98 |   44   30   73 |
emr | emr 2299 |   35   28   72 |   33   31   67 |   24   13   50 |
esa | esa 1911 |  119   69  160 |   72   78  200 |  121   70  277 |
gfz | gfz 1152 |   38   32   83 |   27   39   61 |   28   13   54 |
igr | igr 1582 |   50   39   81 |   50   37   86 |   32   17   63 |
igs | igs 2304 |   32   25   67 |   31   31   59 |   25   15   48 |
jpl | jpl 2287 |   35   25   71 |   32   30   56 |   24   14   50 |

[Mailed From: Francois Lahaye <[email-masked]>]