Subject: [IGSREPORT-2267] Wk 0831 IGS Rapid Orbits
From: AC Coordinator / NRCan GSDivision
Date: Sat, 23 Dec 1995 12:33:34 PST

******************************************************************************
IGS Electronic Report    Sat Dec 23 12:33:34 PST 1995      Message Number 2267
******************************************************************************

Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0831 IGS Rapid Orbits

Rapid Service IGS Orbit Combination - Week 0831   (Dec 10, 1995 - Dec 16, 1995)

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 (IGS08317.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 are computed using a weighted average of all available centres 
(weights are those from the orbit combination). These values are supplemented 
with the current IERS Bulletin A UT1-UTC values. 

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

 IGS08310-6.SP3  IGS GPS ephemeris files for days 0-6, week 0831 in SP3 format.
 IGS08317.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS08317.SUM    Complete report.

REMARKS on IGS Rapid Service 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. 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 (Dec 12) | 00:00:00 |  23  |   ALL    | Modeling problems
       4 (Dec 14) | 00:00:00 |  17  |   ALL    | Modeling problems

5. 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 (IGS08317.SUM).

Table 1: Week 0831 summary.                       (Dec 10, 1995 - Dec 16, 1995)

Table 1.0831.a   GPS week: 0831   MJD: 50061.0-50067.0

         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  62 | .00  .02  .00  -.03  -.02  -.37   .1  .07  .06 |    8.2   -4.1    1.9
        | .01  .00  .01   .06   .17   .25   .1           |    8.2    9.3
emr  26 | .00 -.03 -.02   .54  -.04   .04  -.1  .10  .10 |  320.6    6.2    1.0
        | .00  .00  .01   .15   .17   .13   .1           |   20.4    8.8
esa  44 | .00 -.03 -.03   .07   .10   .09   .1  .15  .13 |    7.5    9.0    4.6
        | .01  .01  .01   .28   .27   .28   .1           |   22.7   14.6
gfz  42 |-.03 -.03  .00   .15  -.06   .05  -.4  .12  .11 |  328.6     .6    4.8
        | .01  .00  .01   .07   .18   .50   .1           |   21.5    9.3
jpl  37 | .01  .03  .00  -.32  -.15   .12   .1  .08  .08 |  323.2    5.8    1.0
        | .01  .01  .01   .07   .17   .15   .1           |   20.4    8.8
ngs  45 | .02 -.03  .01  -.09   .48   .23   .0  .14  .13 |    4.1   -1.1   78.9
        | .01  .01  .00   .14   .18   .21   .1           |    5.0    9.4
sio  102|-.01  .03  .02  -.26  -.01   .21   .2  .11  .10 |     .0     .0     .0
        | .01  .00  .00   .10   .13   .25   .1           |     .0     .0

Table 1.0831.b   GPS week : 0831   MJD: 50061.0-50067.0

         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   4   3   3   3   3 |
   2E |   4   5   5   4   5   5   4 |
   4E |   6   4   4   5   5   4   4 |
   5E |   3   4   4   4   4   4   4 |
   6  |   3   3   3   3   3   3   3 |
   7  |   4   4   3   3   3   4   3 |
   9  |   3   3   3   4   3   3   4 |
  14  |   2   3   2   3   2   2   3 |
  15E |   5   5   5   5   4   4   4 |
  16  |   3   3   4   4   3   4   2 |
  17E |   5   6   5   5   5   5   5 |
  18  |   3   2   2   2   2   2   3 |
  19  |   3   3   3   3   3   2   2 |
  20E |   3   4   3   4   4   4   5 |
  21  |   3   3   2   4   3   3   3 |
  22E |   5   4   4   4   4   5   5 |
  23  |   5   8   6   7   6   8   6 |
  24E |   6   5   5   4   4   5   5 |
  25  |   3   3   3   3   3   3   2 |
  26  |   3   3   4   3   3   2   3 |
  27  |   3   3   2   3   3   3   3 |
  28  |   4   3   3   3   3   3   3 |
  29  |   2   3   2   2   2   2   2 |
  31  |   3   3   3   3   3   3   3 |

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

Table 2.0831.0   GPS week: 0831   Day: 0   MJD: 50061.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  60 | .02  .02  .01   .03   .10  -.11   .2  .08  .06 |    5.2    2.0    1.9
emr  25 | .00 -.03 -.01   .47   .01   .04  -.2  .11  .11 |  298.9   10.6     .9
esa  46 | .01 -.04 -.04  -.52   .02  -.03   .2  .15  .12 |  -17.3   -6.4    1.8
gfz  43 |-.03 -.02  .01   .22  -.43  -.10  -.6  .12  .10 |  306.5    3.8    4.6
jpl  37 | .00  .03  .00  -.21  -.27   .13   .1  .08  .08 |  301.6   10.0     .8
ngs  42 | .01 -.03  .01  -.08   .81   .24   .2  .14  .13 |    1.9    5.3   80.3
sio  99 |-.02  .03  .01  -.39   .10   .11   .2  .11  .11 |     .0     .0     .0

Table 2.0831.1   GPS week: 0831   Day: 1   MJD: 50062.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  62 | .00  .02  .01  -.11   .00  -.51   .0  .08  .06 |    2.1     .9    2.1
emr  26 |-.01 -.03 -.01   .59   .03   .09   .0  .09  .09 |  300.3   11.5    1.1
esa  47 | .00 -.02 -.04   .05   .30   .57   .1  .15  .13 |    3.4    -.2    3.0
gfz  43 |-.03 -.03  .01   .12  -.10  -.19  -.4  .14  .11 |  304.9    9.5    4.2
jpl  37 | .00  .03 -.01  -.34  -.29   .04  -.1  .08  .08 |  302.9   11.1    1.0
ngs  45 | .02 -.03  .02  -.21   .29   .20   .1  .13  .14 |    7.0   -1.6   78.8
sio  100| .00  .03  .02  -.11   .21   .72   .4  .13  .13 |     .0     .0     .0

Table 2.0831.2   GPS week: 0831   Day: 2   MJD: 50063.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  63 | .00  .01  .01  -.05   .14  -.19   .1  .06  .05 |    7.0   -8.3    2.0
emr  26 | .00 -.02 -.03   .82  -.35  -.09  -.2  .11  .11 |  311.6   -2.0    1.1
esa  44 | .02 -.04 -.04   .21   .40   .19   .1  .17  .15 |   14.1   -4.7    3.8
gfz  44 |-.03 -.02  .00   .18   .04  -.03  -.4  .12  .11 |  321.9   -9.1    4.8
jpl  37 | .01  .02 -.01  -.38  -.22   .18   .2  .08  .08 |  314.2   -2.3    1.1
ngs  48 | .01 -.03  .02  -.33   .43   .16   .0  .13  .13 |    4.8   -5.1   77.6
sio  101|-.01  .04  .02  -.37  -.04   .03   .1  .09  .08 |     .0     .0     .0

Table 2.0831.3   GPS week: 0831   Day: 3   MJD: 50064.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  63 | .01  .02  .01  -.09   .09  -.08   .1  .08  .07 |    1.5    6.7    2.0
emr  26 | .00 -.03 -.01   .56  -.06   .12   .1  .10  .10 |  310.8   21.5    1.1
esa  44 | .00 -.03 -.04   .14  -.22   .10   .1  .14  .12 |   -5.8   31.8    5.3
gfz  44 |-.02 -.02  .00   .17   .04  -.64  -.5  .12  .11 |  316.3   15.3    4.6
jpl  37 | .01  .02  .01  -.41  -.17   .23   .1  .09  .09 |  313.4   21.3    1.1
ngs  47 | .01 -.02  .01   .05   .35   .23  -.1  .12  .12 |   -4.9   16.2   77.5
sio  103|-.02  .02  .02  -.22  -.12   .25   .3  .12  .11 |     .0     .0     .0

Table 2.0831.4   GPS week: 0831   Day: 4   MJD: 50065.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  63 | .00  .01  .00   .07   .05  -.47   .2  .08  .07 |   20.9  -15.0    1.9
emr  26 | .00 -.03 -.01   .46  -.15   .09  -.1  .10  .10 |  335.9   -1.8    1.0
esa  45 | .00 -.04 -.03   .21   .28   .05   .0  .15  .14 |   43.3    8.0    7.7
gfz  42 |-.03 -.02 -.01   .18   .00   .19  -.4  .11  .11 |  345.4   -7.7    4.7
jpl  37 | .01  .03  .00  -.37  -.28   .00   .1  .08  .08 |  338.4   -1.9    1.0
ngs  46 | .03 -.04  .01  -.10   .61   .66  -.1  .14  .13 |    9.2   -9.2   78.5
sio  105|-.02  .03  .02  -.29  -.05   .08   .2  .09  .08 |     .0     .0     .0

Table 2.0831.5   GPS week: 0831   Day: 5   MJD: 50066.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  62 | .00  .01  .00  -.04  -.27  -.78   .1  .08  .06 |    1.8    1.9    1.7
emr  27 | .01 -.03 -.02   .51   .10   .21   .0  .11  .11 |  334.2    4.3     .9
esa  43 | .00 -.04 -.03   .33   .22   .13  -.1  .14  .12 |  -14.5   24.7    2.0
gfz  39 |-.03 -.03  .00   .02  -.05   .08  -.4  .13  .11 |  345.1   -6.4    5.2
jpl  37 | .02  .03  .00  -.24   .03   .35   .1  .07  .08 |  336.9    3.7     .8
ngs  45 | .02 -.02  .02  -.03   .45  -.01  -.1  .13  .13 |    1.7   -2.0   80.3
sio  103|-.02  .03  .02  -.24  -.16   .31   .2  .10  .08 |     .0     .0     .0

Table 2.0831.6   GPS week: 0831   Day: 6   MJD: 50067.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  61 | .00  .02  .00  -.04  -.25  -.47   .1  .07  .06 |   18.8  -16.9    1.9
emr  26 | .00 -.02 -.02   .35   .15  -.16  -.1  .10  .11 |  352.6    -.9    1.1
esa  42 | .01 -.04 -.01   .10  -.27  -.36   .2  .17  .14 |   29.5    9.5    5.8
gfz  40 |-.03 -.03  .00   .16   .08  1.02  -.3  .10  .10 |  360.0   -1.0    5.1
jpl  37 | .01  .03  .00  -.32   .14  -.07   .2  .09  .09 |  355.1   -1.3    1.0
ngs  44 | .03 -.03  .02   .04   .42   .16   .1  .15  .15 |    8.6  -11.4   79.6
sio  103|-.01  .03  .02  -.19  -.03  -.03   .2  .09  .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" flags eclipsing satellites.
         Units: cm.

Table 3.0831.0   GPS week: 0831   Day: 0   MJD: 50061.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   5   6  12   7   5  15  15    3 |    7   7  12  10   7  13  23    6
   2E |   9  15  16  10   9  13  12    4 |    8  18  19  15   7  19  21   10
   4E |  17   8  22  13  13  23  19    6 |   14  13  13  12   6  18  20    9
   5E |   5  11   8   9   6  10   8    3 |   18  20  21  21  19  20  26   17
   6  |   4   6  12   7   5  15   8    3 |    3  11  13  14   5  14  21    6
   7  |   4   8  11   9  11  19   6    4 |    7  10  16  12   9  15  20    7
   9  |   5   7  12  10   7  12   8    3 |    4   9  12  14   6  15  19    5
  14  |   5   7   8   7   3   6   5    2 |    6  12  11  11   9  10  23    8
  15E |   6  15  19  21   8  14  15    5 |   17  28  30  23  18  21  34   19
  16  |   3  10  13   9   5  14  11    3 |    5  14   9  11   8  15  21    6
  17E |   7  11  26  12   9  13   9    5 |    9  14  21  19   8  15  15   11
  18  |   4   7  10   5   6   5  12    3 |    8   9  11  10  10  11  19    7
  19  |   5  11  11   7   7  13  10    3 |    4  14  12  13   6  13  19    7
  20E |   5   6  15   7   7  17  10    3 |    5  12  14  14   7  20  20    8
  21  |   6   4  13  10   5   9   9    3 |    5   8   9   8   6  11  23    5
  22E |   9   9  18  14   8  23  13    5 |    7  15  25  12   7  20  25   10
  23  |  13  11  14  19  12  17  13    5 |   30  34  26  32  32  36  31   30
  24E |   9  24  25  19  13  10  10    6 |   11  24  24  19  10  13  21   10
  25  |   7   6   9  11   6   9   7    3 |    4  12  11  13   6  12  20    6
  26  |   3   7   6   9   7  10   8    3 |    7   9  10   9   7  13  19    5
  27  |   3   9   9   7   7  11  12    3 |    3  11  12  13   6  14  19    6
  28  |   6   7  11  11   9  16  12    4 |    5  12  12  14  10  17  18    6
  29  |   3   6  12   5   3   7   8    2 |    7  11  12  11   9  10  20    8
  31  |   7   7  11  12   7   8  12    3 |    6  10  12  13   6  13  18    4
------|----------------------------------|----------------------------------
 RMS  |   7  10  14  11   8  14  11      |   10  15  16  15  10  16  21   10
 WRMS |   6  10  12   9   8  13  11      |

Table 3.0831.1   GPS week: 0831   Day: 1   MJD: 50062.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   5   5  24   7   4   7  11    3 |    3   9  17   9   7  10  12    4
   2E |  11  16  20  12   8  11  16    5 |   10  18  21  18   7  18  13   10
   4E |   8   7  17  12   8  20  16    4 |    9  14  15  11   4  16  13    8
   5E |   6  13  14  13   7  16   8    4 |   14  24  19  20  16  24  12   16
   6  |   6   7  13   9   5   9   8    3 |    3  13  15  14   5  14   6    6
   7  |   5   7  15   8   7  22  19    4 |    4   9  15  11   5  13  18    7
   9  |   6   8  15   8   9   7   7    3 |    5  10  13  12   5  14  11    6
  14  |   6   5  11   6   3  11  20    3 |    3   8   8  10   7  14  17    5
  15E |   8   9  16  23   7  11  16    5 |   11  23  20  28  14  19  12   16
  16  |   4   7  17   9   8  11  11    3 |    6   8  10   8   5  16  13    6
  17E |  10  13  17  24  13  15  12    6 |   11  17  18  22   9  16  14   10
  18  |   3   5  10   6   3   9  10    2 |    5   7  10   6   6  14  10    5
  19  |   5   7  11   5   5   7  10    3 |    3  12  12  11   5  12  10    6
  20E |   4   7   9  16   7  19   9    4 |    6  14  17  17   7  16   8    8
  21  |   4   7   8  15   5   6   8    3 |    4   8  10   9   4   9  12    5
  22E |   7   9  14  16   8  10   7    4 |    7  15  21  14   7  22  15    9
  23  |  22   9  21  32  19  17  23    8 |   28  33  20  38  37  36  36   31
  24E |   6  14  18  14  11  19  14    5 |    9  23  21  19   8  22  14   11
  25  |   8   7  11  12   5  11  12    3 |    4  12  12  12   7  15  18    8
  26  |   5  10  10   6   6  11   7    3 |    5   9  12   7   6  12   9    4
  27  |   4   8  13   5   6   5  11    3 |    3  11  13  11   5  11   9    6
  28  |   5   5   9   8   9   8   7    3 |    4  11  13  11   8  15  10    5
  29  |   4   4  12   7   4  11  13    3 |    4   8  13  11   6  11  17    5
  31  |   6   9  11  13   6   7  16    3 |    4  11  13  12   4  12  20    5
------|----------------------------------|----------------------------------
 RMS  |   8   9  14  14   8  13  13      |    8  15  15  15  10  16  14   10
 WRMS |   6   9  13  11   8  13  12      |

Table 3.0831.2   GPS week: 0831   Day: 2   MJD: 50063.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   4   4  10  13   6   6  21    4 |    4   8   9   9   7   8  23    6
   2E |   5 ---  23  13   6  16   9    5 |    9 ---  19  21   6  19  12    9
   4E |   8   8  11  11  10  12   9    4 |   12  14  16  11   8  18  13    8
   5E |   5  13  25  12   8  18   7    4 |   14  19  25  19  13  22  18   15
   6  |   3   8  11   8   8  11   8    3 |    4  13  13  11   8  15  12    7
   7  |   4  11  15   9   5  17   6    3 |    4   9  14  10   4  13  12    5
   9  |   5   7  18   7   6  12   4    3 |    4  11  14  12   7  14  12    6
  14  |   4   6  11   6   3   7   8    2 |    5  10  10   7   7  10  14    5
  15E |   5  16  22  20   8  16   9    5 |   11  26  20  24  12  22  12   14
  16  |   5  17  12   8   8  14   6    4 |    7  14  11  11   7  14  15    5
  17E |  10  17  23  13  12  16   8    5 |   13  18  28  20  11  17  13   13
  18  |   3   5  13   9   4   6   9    2 |    7  10  10   6  10  12  12    7
  19  |   5   9  10   9   4   8   6    3 |    4  13  12  12   4  11  10    6
  20E |   6   8  12  12   6  15   8    3 |    9  15  16  17   7  19  15   10
  21  |   5   6  13   8   3   7   7    2 |    4   7  11   9   5   9  13    4
  22E |   7  10  17  15   8  15   9    4 |    7  15  22  17   7  19  11    7
  23  |   8   8  41  16  12  19  10    6 |   33  29  20  28  32  32  28   28
  24E |   4  12  21  14  13  17  11    5 |   10  19  29  20  14  24  15   13
  25  |   5   8  12  12   6  15   8    3 |    4  12  11  13   6  16  12    5
  26  |   7  18   9   8   6   8   7    4 |    8  16   9   9   6  11  13    5
  27  |   3   8  11   6   6   8   8    2 |    4  11  13  12   8  14  12    6
  28  |   5   9  10  13  11  11   6    3 |    4  12  12  17   8  17  11    6
  29  |   3   6   9   7   3   5   9    2 |    5  11   8   6   7   7  13    5
  31  |   5   8  12  11   5   9   7    3 |    4  12  13  14   4  15  12    5
------|----------------------------------|----------------------------------
 RMS  |   5  10  17  11   7  13   9      |   10  15  16  15  10  16  14    9
 WRMS |   5  11  14  11   7  13   8      |

Table 3.0831.3   GPS week: 0831   Day: 3   MJD: 50064.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   5   9  11  10   5  10  12    3 |    6   6  15  18   5  13  16    6
   2E |   9  12  15  10   8  14  11    4 |    9  22  16  23   7  22  14   11
   4E |  11   9  10  13   7  18  14    5 |   12  13  13  18   6  19  19    9
   5E |   7  12  11  12   7  10   7    4 |   14  20  19  20  12  18  16   13
   6  |   4   7   8   7   7  12   8    3 |    4  12  13  18   6  20  13    7
   7  |   4   8  13   7   8  11   8    3 |    6   9  15  19   3  16  15    7
   9  |   6  13  15   8   5  16   8    4 |    4  12  13  15   5  20  15    7
  14  |   6   6   5   7   5   7  11    3 |    4  13  10  13   8  10  17    7
  15E |   8  12  17  15   9  11  14    5 |   12  18  21  23  12  21  23   14
  16  |   7   9  18  10   8  10  13    4 |    7  13  11  13   8  14  20    8
  17E |   6  11  11  23  12  12  13    5 |   14  14  18  21  13  15  17   12
  18  |   4   6   7   7   6   8   8    2 |    6   7   9  14   9  16  12    6
  19  |   5   8  10  13   7   8  12    3 |    4  11  12  15   4  16  11    6
  20E |   6   9  14  11   9  17   7    4 |    8  18  18  22   4  24  15   11
  21  |   9   6  22  10   6  13   7    4 |    5  10  13  14   7  14  14    6
  22E |   7  10  11   9   8  11  13    4 |   10  17  23  19   6  20  13   10
  23  |  17   8  26  27  16  19  21    7 |   51  44  21  61  39  39  37   40
  24E |   8  11  15  10  15   7  11    4 |    8  17  20  20  12  19  15   11
  25  |   4  14   7   6   5   9  14    3 |    4  13  14  19   7  13  14    6
  26  |   6   9  13   5   7   6   6    3 |    6  11  11  15   5  11  13    4
  27  |   4   8  15  11   8  10  12    3 |    3  10  13  13   7  13  12    6
  28  |   5   6   8  12   9   9   7    3 |    5  13  10  23   8  17  13    8
  29  |   5   4   8   9   3   7   6    2 |    7  11  12  13   9  13  14    7
  31  |   7   9  10  12   6  10   6    3 |    6  13  11  18   4  15  14    6
------|----------------------------------|----------------------------------
 RMS  |   7   9  13  12   8  12  11      |   12  16  15  21  11  18  16   11
 WRMS |   6   9  12  10   8  12  11      |

Table 3.0831.4   GPS week: 0831   Day: 4   MJD: 50065.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   4   4  15   7   6  14   6    3 |    6   7  21  10   5  13  10    5
   2E |   9  14  17  19   9  22   9    5 |    9  22  20  21   5  26  15   12
   4E |  11  14  14  16   8  19  11    5 |   15  14  18  13   7  18  14    9
   5E |   6  13  12  11   8  12   7    4 |   10  15  18  19   9  21  12   11
   6  |   5   6  15   7   5   7   6    3 |    4  11  10  12   4  13   8    5
   7  |   6   5  12   9   8  13   4    3 |    6  10  13  13   7  15  12    7
   9  |   6  10  12   7   7  17   6    3 |    4  12  10  13   8  21  12    7
  14  |   5   7   6   8   4  12   6    2 |    6  12  10  14   7  11  11    8
  15E |   6  10  17  12  10  12  12    4 |    7  15  20  18   9  18  15   10
  16  |   8   6  10  13   6   9   7    3 |    6   9  10  15   6  10  12    6
  17E |  13  15  24  11  11  18   8    5 |   10  12  19  16   4  15   6    8
  18  |   3   6   9   5   5   6   9    2 |    6   8   9   9   6  11   9    5
  19  |   6   7  10  13   5   9   7    3 |    4  11  11  13   5  12  10    6
  20E |   7  12  10  11   9  13   9    4 |   10  18  17  20   7  20  11   10
  21  |   8   7  18   9   7   8   4    3 |    5   8  12  12   7  12  10    5
  22E |  11   9  13  11   6  18  13    4 |   10  16  18  15   7  25  13   10
  23  |   7  18  25  16  11  19  11    6 |   58  48  40  61  61  53  57   54
  24E |   7  14  13  12  13  11  11    4 |   12  20  20  18   8  19  10   11
  25  |   5   9  11   7   6   9   8    3 |    5   9  12  10   6  12   9    6
  26  |   8   7  17   7   6   9   5    3 |    7   7  10   7   6  14  10    5
  27  |   4   7  18   7   5  15  10    3 |    4  10  11  12   5  14  11    6
  28  |   5   8  10  14  10   9   6    3 |    4  13  13  15   7  12  12    6
  29  |   4   6   9   4   5  11   5    2 |    6  10  10   7   5   8   8    5
  31  |   5   9   9  12   7  13  10    3 |    4  12  12  13   3  20  10    6
------|----------------------------------|----------------------------------
 RMS  |   7  10  14  11   8  13   8      |   13  15  16  18  13  19  15   13
 WRMS |   6  10  14  11   8  13   8      |

Table 3.0831.5   GPS week: 0831   Day: 5   MJD: 50066.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   4   5  14   8   5  14   5    3 |    5   6  16  14   9  13   7    6
   2E |  13  15  17  19   7  14  13    5 |   11  18  18  20   7  15   6    8
   4E |   9  10   8  13   8  13  11    4 |   13  17  18  15   8  17   8    9
   5E |   7  13   9  12   8  16   7    4 |   19  20  20  23  20  27  16   18
   6  |   4   7  11   8   5   8   9    3 |    4  11  14  12   6  11   7    5
   7  |   4   6  16  14   5  16  11    4 |    5   9  22  12   6  16  12    7
   9  |   5  11  13   7   5   8   8    3 |    4  10  14  14   8  12   8    6
  14  |   5   7   7   7   4   9   8    2 |    4  10   9  12   7  15   6    5
  15E |   9  10  19  13   7  11  11    4 |    9  16  20  19  11  22  10   12
  16  |   9   9   8  10   7  18   7    4 |    7  10  10  12   5  15   6    4
  17E |   8  18  18  21  10  14   9    5 |    9  14  18  20   6  15   7    6
  18  |   4   6   8   7   4   8   7    2 |    7   7   8   7   6  10   4    5
  19  |   2   9  10   9   5   7   7    2 |    4  11  12  11   6  11   9    5
  20E |   5  12  13  13   9  20  10    4 |    8  20  20  20   5  23   7   10
  21  |   5   7  15  10   4  10   6    3 |    4   9  12  10   7  11   4    5
  22E |   9  15  22  13   7  14  13    5 |    7  18  27  13   7  20  12   10
  23  |  17  19  27  30  12  22  18    8 |   57  57  35  74  53  46  49   51
  24E |   7  15  15  13  11  14  11    5 |   11  21  23  18  10  18   8   11
  25  |   7   6   8  10   4  10   7    3 |    7  11  14  14   6  13   6    6
  26  |   4   6   9   6   5   9   5    2 |    4   8   9  11   7  13   7    4
  27  |   5  10  15   9   7  11  10    3 |    4  10  11  11   9  13   9    5
  28  |   7   6   9  12  10   7   7    3 |    5  10  12  11   9  10   9    5
  29  |   3   6   6   4   3   7   7    2 |    5   6   9   7   5   9   6    4
  31  |   5   7  12  10   5   8   7    3 |    8  10  11  12   8  14   6    6
------|----------------------------------|----------------------------------
 RMS  |   7  11  14  13   7  13   9      |   14  17  17  20  13  17  12   12
 WRMS |   6  11  12  11   7  13   8      |

Table 3.0831.6   GPS week: 0831   Day: 6   MJD: 50067.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   4   8   9   8   7  16   5    3 |    8   9  12  12   8  10  19    7
   2E |   7  15  15  11   7  16  15    4 |   11  14  19  17   9  15  20   10
   4E |   7  11  10  12   7  17  10    4 |   11  13  17  16   7  13  17    9
   5E |   5  15  14  10   8  14   8    4 |   15  24  22  22  19  22  28   19
   6  |   3   8  17   7   8   8   8    3 |    4  10  14  13   5  11  16    6
   7  |   5   7  18  10   5  10   5    3 |    6  10  17  15   4  10  15    6
   9  |   6   7  19   7   8  22   6    4 |    6  13  16  13   9  16  17    9
  14  |   4  11   7   6   4  20   6    3 |    5  11  13   9  10  14  18    9
  15E |   6  13  21   9   9  15  10    4 |   20  24  30  28  21  26  21   21
  16  |   4   6  11   8   6   8   4    2 |    6   9   9  11  10  10  19    8
  17E |  14  15  13  10  14  18  11    5 |    9  12  16  13   5  14   6    7
  18  |   5   5  12   9   6   9   6    3 |    8   8  10  10  10  13  18    8
  19  |   5   8  11   7   5   6   8    2 |    4  11  14  11   8  11  18    7
  20E |   7  13  18  17  10  12   9    5 |    9  20  23  23   8  20  20   13
  21  |   6  10  12   8   7  12   3    3 |    6  12  10  10   8  15  19    7
  22E |   6   7  30  10  10  19  13    5 |   11  19  29  18  11  20  19   13
  23  |  10  12  34  15  15  19  12    6 |   42  35  32  50  50  47  53   43
  24E |   8  16  17  11  13  13  12    5 |    9  20  24  17   8  15  16   10
  25  |   4   4  12   9   6  10   6    2 |    6  12  15  15   6  14  17    8
  26  |   6   7   9   5   6  21   7    3 |    6   8   8   8   6  21  17    6
  27  |   6   6  10   7   5  11  12    3 |    6  11  14  11  10  11  19   10
  28  |   5  10   6   9   8  10   5    3 |    7  13  16  21   7  20  15   10
  29  |   4   6   8   8   4  13   5    2 |    7   9  12  10   9  10  18    8
  31  |   6   7  19  11   5  12   6    3 |    5   9  11  14   4  13  16    5
------|----------------------------------|----------------------------------
 RMS  |   6  10  16  10   8  14   9      |   12  15  18  18  13  18  20   13
 WRMS |   5  10  14   9   8  14   7      |

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