Subject: [IGSREPORT-1697] Wk 0795 IGS Rapid Orbits
From: AC Coordinator / NRCan GSDivision
Date: Thu, 20 Apr 1995 8:39:29 PDT

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IGS Electronic Report    Thu Apr 20  8:39:29 PDT 1995      Message Number 1697
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0795 IGS Rapid Orbits

Rapid Service IGS Orbit Combination - Week 0795   (Apr 02, 1995 - Apr 08, 1995)

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

COMBINATION STRATEGY:

  Each centre ephemeris and satellite clock corrections are first transformed
to common reference. The differences between each centre X and Y pole solutions
and the IERS Bulletin A corrected with ITRF inconsistency parameters (cf. IERS
1993 Annual Report,Table II-3,page II-19) are used to rotate the corresponding
ephemeris. If the pole solution is not available for a particular centre, no
such rotations are applied. For each centre, a clock offset and a drift are
estimated with respect to broadcast clock corrections using only non-SA
satellites. These offsets and drifts are used to align each centre satellite
clock corrections to GPS time. The resulting ephemerides and clock corrections
are then combined as weighted averages computed over all centres. Each centre 
is given a position weight and a clock weight. The position weights are 
computed from each centre's absolute deviation to the unweighted average orbit 
after the estimation of a 7-parameter Helmert transformation. The clock weights
are computed from the absolute deviation of the initial alignment to broadcast 
clock for the non-SA satellites, provided these satellites are representative 
of the clock solution quality of each centre. Finally, a 7-parameter Helmert 
transformation and clock offset and drift are estimated for each centre with 
respect to combined solutions and parameters and RMS of fit reported here. All
the above estimations are performed using the L1-norm robust scheme.
  Each centre ephemeris are also evaluated individually and independently from
the orbit combination by using week long arcs. The ERP used in this evaluation
are those submitted by the respective centres supplemented with IERS Bulletin A
UT1-UTC values when they are not supplied.
  Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c,

where X and V are the sv state and velocity vectors and c is the speed of
light. Also for compatibility, no satellite L1/L2 delay calibration should be
applied.

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

 IGS07950-6.SP3  IGS GPS ephemeris files for days 0-6, week 0795 in SP3 format.
 IGS07957.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS07957.SUM    Complete report.

REMARKS on IGS Rapid Service Orbit Combination:

1. The centres used in the clock combination are EMR, ESA, GFZ and JPL. The 
   other centres are excluded because they either provide broadcast clocks 
   (COD, 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:
   PRN12, PRN15 and PRN28. 

4. Some 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.  The following table 
   lists the exclusions:

                     Day (Date)  | PRN  | Centres  
                    -------------+------+--------
                     0 (Apr 02)  | 12   | NGS 

5. Centre specific UT1-UTC values for ESA and NGS were not used in
   the long arc evaluation.  Smaller RMS were obtained when UT1-UTC values 
   from Bulletin A were used.

ORBIT COMBINATION AND EVALUATION STATISTICS:

  Most combination statistics are with respect to the combined orbits and
consist of three parts. The first, Table 1, summarizes all statistics for the
week. It contains means and standard deviations over the week of satellite
ephemeris and clock correction transformation parameters for each centre
(table 1.0795.a). It also displays the computed satellite position sigmas for
the combined orbits (table 1.0795.b). The second part, Table 2, contains the
complete ephemeris and clock correction transformation parameters (includes
both the apriori and a posteriori values) for each centre and each day
(tables 2.0795.0-6). The third and final part, Table 3, contains two types of
daily RMS for each satellite and centre, along with the computed satellite
position sigmas for the combined orbits (tables 3.0795.0-6). The first type of
satellite RMS is based on orbit combination and the second RMS type is a result
of the 7-day arc evaluation of each centre ephemerides.
  In all tables, the most important statistic which is meaningful for intra
centre/satellite analysis is labeled WRMS. It is a weighted RMS where
normalized weights are based on accuracy codes given in the SP3 files, and
should not be affected by downweighted/problem satellites when acknowledged by
individual centres in their SP3 file.

Table 1: Week 0795 summary.                       (Apr 02, 1995 - Apr 08, 1995)

Table 1.0795.a   GPS week: 0795   MJD: 49809.0-49815.0

         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  54 | .00  .01  .00   .07  -.07   .20  -.1  .09  .09 |   -3.2    5.6   76.9
        | .01  .01  .01   .28   .18   .15   .1           |    3.3    6.3
emr  26 | .01 -.03  .01   .24  -.21  -.01  -.1  .11  .12 |-1068.9  -21.1    1.1
        | .01  .01  .00   .34   .21   .15   .1           |   43.8    7.8
esa  38 | .02  .00 -.03   .76   .08  -.19   .1  .18  .13 | 1501.3  -21.3    7.3
        | .00  .01  .01   .38   .31   .20   .2           | 1240.1   21.6
gfz  43 |-.04 -.01  .01   .22   .08  -.14  -.3  .09  .09 |-1062.6  -19.7   10.8
        | .01  .00  .00   .37   .16   .15   .1           |   49.8   22.8
jpl  34 | .01  .05  .01  -.24   .06   .01   .0  .11  .11 |-1065.6  -21.1    1.1
        | .01  .00  .01   .40   .19   .10   .1           |   43.9    7.6
ngs  36 | .00  .00  .00   .34   .37   .05  1.0  .26  .25 |  -90.4  166.712571.3
        | .01  .01  .01   .28   .27   .20   .2           |  231.3  428.2
sio  35 | .03 -.08  .02  -.21  -.10   .04  -.1  .23  .21 |     .0     .0     .0
        | .02  .01  .02   .24   .46   .28   .3           |     .0     .0

Table 1.0795.b   GPS week : 0795   MJD: 49809.0-49815.0

         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
------|-----------------------------|------------------------------------------
   1E |   5   5   6   6   5   5   6 |
   2  |   5   5   4   6   4   4   3 |
   4  |   4   6   4   5   6   3   4 |
   5  |   3   3   3   4   3   3   3 |
   6E |   6   6   7   5   5   6   6 |
   7E |  10   6   6   7   6   6   6 |
   9  |   5   7   5   4   4   4   4 |
  12  |   4   5   3   4   3   4   3 |
  14  |   5   5   5   5   4   3   3 |
  15  |   5   6   5   4   5   4   4 |
  16  |   4   4   7   4   5   4   4 |
  17  |   4   4   4   4   4   4   4 |
  18E |   6   5   5   6   6   4   4 |
  19  |   4   3   4   4   4   5   4 |
  20  |   5   4   3   3   4   4   3 |
  21  |   4   4   5   4   4   3   4 |
  22  |   4   3   4   4   3   4   4 |
  23  |   4   4   4   4   3   4   4 |
  24  |   4   4   4   4   4   4   4 |
  25  |   4   4   4   4   4   4   4 |
  26E |   5   4   5   4   5   5   5 |
  27  |   4   3   4   4   4   4   4 |
  28E |   7   7   8   7   6   8   6 |
  29E |   6   6   5   5   6   4   4 |
  31E |   6   8   7   6   9   5   6 |

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 2.0795.0   GPS week: 0795   Day: 0   MJD: 49809.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  54 | .00  .01 -.01  -.10  -.42   .21  -.2  .09  .09 |    2.0   -6.6   77.8
emr  25 | .00 -.03  .01   .28  -.49   .08  -.1  .11  .11 |-1008.4  -14.0     .8
esa  35 | .02 -.01 -.03   .33  -.27  -.50   .2  .18  .12 | 2032.5   22.0   15.1
gfz  42 |-.03 -.02  .01   .11  -.19   .08  -.5  .11  .10 | -998.3  -17.7    7.3
jpl  34 | .00  .06  .01  -.44  -.23  -.03  -.1  .11  .11 |-1005.5  -14.3     .7
ngs  35 | .01  .01  .02  -.07  -.01  -.02  1.1  .41  .39 | -615.0 1137.833260.0
sio  34 | .06 -.08  .01  -.64 -1.11   .24   .1  .24  .22 |     .0     .0     .0

Table 2.0795.1   GPS week: 0795   Day: 1   MJD: 49810.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  54 | .00  .02  .00   .06  -.19   .09  -.2  .10  .10 |   -5.8    7.9   77.2
emr  27 | .01 -.04  .01   .25  -.42  -.10   .1  .13  .13 |-1026.2  -29.3    1.6
esa  39 | .02 -.01 -.04   .58  -.44  -.13   .2  .18  .14 | 4003.8  -35.8    5.6
gfz  45 |-.03 -.01  .00   .10  -.08   .04  -.2  .09  .08 |-1018.7  -35.2    7.5
jpl  34 | .02  .06  .00  -.45  -.07  -.08  -.1  .11  .11 |-1022.7  -29.1    1.5
ngs  39 | .01  .00  .00   .04   .22  -.02   .8  .23  .21 |   -5.9    7.5   77.4
sio  36 | .03 -.07  .04  -.06   .17  -.17   .0  .23  .21 |     .0     .0     .0

Table 2.0795.2   GPS week: 0795   Day: 2   MJD: 49811.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  55 | .00  .03  .00   .06   .05   .15  -.1  .10  .10 |   -1.0    3.5   75.5
emr  23 | .00 -.03  .01   .20  -.20  -.02  -.1  .12  .13 |-1051.7  -17.1    1.1
esa  37 | .02 -.01 -.03   .70   .18  -.22   .0  .18  .13 | 1653.7   -8.0    2.4
gfz  44 |-.04 -.01  .01   .25   .09  -.16  -.3  .10  .09 |-1041.1  -18.2    9.5
jpl  34 | .01  .05  .01  -.08   .24   .11   .0  .10  .10 |-1047.7  -17.2    1.2
ngs  36 | .01 -.01 -.01   .56   .49  -.10   .6  .22  .21 |   -1.8    4.8   75.7
sio  34 | .05 -.08 -.02  -.12   .04   .54  -.1  .24  .21 |     .0     .0     .0

Table 2.0795.3   GPS week: 0795   Day: 3   MJD: 49812.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  55 | .01  .02  .00  -.24   .05   .32  -.1  .08  .08 |   -4.1    9.5   78.1
emr  26 | .00 -.03  .01   .04   .02  -.28   .0  .11  .12 |-1068.1  -16.8     .7
esa  39 | .03  .00 -.02   .54   .13  -.01  -.2  .16  .12 |  978.0  -28.4    3.6
gfz  45 |-.04 -.01  .01  -.11   .17  -.18  -.2  .09  .09 |-1072.7   -7.4   12.7
jpl  34 | .02  .05  .00  -.33   .15   .06  -.2  .11  .11 |-1064.3  -17.1     .7
ngs  34 | .00  .00 -.02   .56   .56   .23  1.2  .26  .24 |   -4.6    7.4   78.3
sio  35 | .02 -.08  .03  -.07  -.17  -.15  -.6  .21  .20 |     .0     .0     .0

Table 2.0795.4   GPS week: 0795   Day: 4   MJD: 49813.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  54 | .00  .01  .00  -.12   .02   .44   .1  .08  .08 |   -6.6   12.4   76.3
emr  27 | .02 -.03  .01  -.15  -.17   .02  -.1  .11  .12 |-1087.2  -21.3     .9
esa  38 | .02  .01 -.05   .85   .41  -.41   .0  .20  .14 |  725.4  -39.2    8.6
gfz  44 |-.04 -.01  .01  -.10   .18  -.26  -.3  .09  .08 |-1054.6  -48.6   11.3
jpl  34 | .01  .05  .01  -.68   .09   .08   .1  .11  .11 |-1084.1  -21.5     .8
ngs  36 | .00  .00 -.02   .39   .21  -.22  1.0  .21  .21 |    2.5   -5.1   76.7
sio  36 | .04 -.08  .03  -.46   .11  -.14   .0  .26  .25 |     .0     .0     .0

Table 2.0795.5   GPS week: 0795   Day: 5   MJD: 49814.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  55 | .01  .01  .00   .27   .04   .22  -.1  .08  .08 |   -6.2    9.1   75.7
emr  27 | .02 -.02  .01   .14   .09   .01  -.1  .09  .10 |-1113.7  -14.9    1.2
esa  38 | .02  .01 -.04   .81   .32   .04  -.2  .18  .14 |  598.1  -33.4    2.6
gfz  42 |-.03 -.01  .01   .30   .28  -.23  -.2  .09  .09 |-1131.7   21.8   15.0
jpl  34 | .00  .05  .00  -.30   .28  -.14   .1  .11  .12 |-1110.6  -14.8    1.2
ngs  36 | .01  .00  .01   .23   .83   .14  1.3  .21  .21 |   -6.0    9.5   76.0
sio  35 | .00 -.06 -.01  -.03   .12   .16   .0  .20  .19 |     .0     .0     .0

Table 2.0795.6   GPS week: 0795   Day: 6   MJD: 49815.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  54 | .00  .01  .00   .60  -.02  -.01   .1  .09  .09 |    -.5    3.3   77.4
emr  27 | .01 -.02  .01   .93  -.27   .20  -.2  .08  .08 |-1127.3  -34.3    1.0
esa  37 | .02  .02 -.02  1.53   .22  -.10   .3  .17  .13 |  517.8  -26.2    3.9
gfz  42 |-.05 -.01  .00   .98   .07  -.29  -.2  .10  .10 |-1121.0  -32.9    9.9
jpl  34 | .01  .05  .00   .58  -.06   .09  -.1  .10  .10 |-1124.3  -34.1    1.0
ngs  35 |-.01  .00  .00   .66   .29   .35  1.1  .19  .19 |   -2.3    5.3   78.0
sio  35 | .05 -.08  .04  -.12   .15  -.20   .1  .23  .21 |     .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 3.0795.0   GPS week: 0795   Day: 0   MJD: 49809.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  10  10  12  15  11  26  17    5 |   17  17  20  22   6  23  26   14
   2  |   6  11   7   5  12  38  25    5 |    7  13  11  12  10  18  26    8
   4  |   7  13  10   4   6  14  28    4 |   10  11  14   9   5  12  25    8
   5  |   7   7   8   5  10   9  14    3 |    7  11  14   9   6  14  18    7
   6E |   7  11  16  16  10  26  39    6 |   10  17  20  20   7  24  33   12
   7E |  15  13  57  15  11  34  40   10 |    7  22  34  17   8  32  31   15
   9  |   7   8   9   7   9  34  17    5 |   11  10  11  11   6  27  18    7
  12  |   8   9  12   6   7 170  16    4 |    6   9   8  11   6  55  24    5
  14  |   6  10  15  12  12  27  20    5 |   11  14  13  10  11  28  29   10
  15  |  12  10  12  14  10  18  21    5 |   11  10  15  11   7  13  18    8
  16  |   8  12  11   9  10  22  16    4 |   11  11  14  13   9  20  13    9
  17  |   7   9  18   8   9  14  25    4 |   11  10  12  11   6  11  23    8
  18E |  11  14  11  10  15  28  19    6 |   24  26  24  24  18  35  26   21
  19  |   9   7  12   7  10  16  14    4 |    9  10  11  12   7  17  20    9
  20  |  11  13   7  10   8  16  24    5 |    7  10  14  10   7  23  28    8
  21  |  10   5  11   9  10  14  21    4 |    9  11  11  14   8  15  33    9
  22  |   9  10  12   6  10  15  22    4 |   10  15  12   8   7  18  27    8
  23  |   7   5  10  12   9  24  22    4 |   14  18  15  15  15  21  32   15
  24  |   7   7  12   5   6  24  15    4 |   10  10   9  11   5  15  20    8
  25  |   8   9   9   7   9  12  18    4 |   10  11  11  11   6  16  18    8
  26E |  11   8  19  10  11  22  18    5 |   13  15  22  16  10  23  22   12
  27  |   5  11  10   5   9  10  21    4 |    8  11  12  10  10  13  18    8
  28E |   8  14  28  17  16  27  32    7 |   13  19  37  22   5  21  29   13
  29E |  10  15  11  11  14  26  36    6 |   17  24  16  17   7  28  27   14
  31E |   8  12  20  12  15  23  27    6 |   18  18  26  26   9  18  22   16
------|----------------------------------|----------------------------------
 RMS  |   9  10  17  10  11  41  24      |   11  14  17  14   8  23  24   11
 WRMS |   9  11  12   9  11  39  21      |

Table 3.0795.1   GPS week: 0795   Day: 1   MJD: 49810.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |   8  10  23  12   9  20  13    5 |    8  14  17  22   7  22  24   12
   2  |   5  10  11   5  13  35  22    5 |    7  11  12  10   8  23  18    8
   4  |   6  13  24   4  12  24  34    6 |   11  10  19   9   5  22  21    9
   5  |   5   6  13   8   9  13  16    3 |    7   9  12  12   6  16  15    7
   6E |   7  14  28  10  11  24  32    6 |    9  15  20  17  13  24  38   11
   7E |   7  14  17   8  13  26  32    6 |   12  25  31  18   8  30  29   17
   9  |   7  14   9   8  12  54  15    7 |   11   9  14  10   4  41  15    9
  12  |   6  10  11   8   6  28  30    5 |    6   6  12   7   5  62  24    6
  14  |  13  15  18  10   9  14  22    5 |   10  18  14  10   6  15  27    9
  15  |  18  17  15   5   8  22  30    6 |   11  12  16  10   9  12  14    9
  16  |   8   7  20   6   8  17  19    4 |   13   8  13  11   5  20  21    7
  17  |   7   9  19   7   8  11  27    4 |   14  10  15  13   7  18  19   11
  18E |  10  12   9  10  12  19  17    5 |   11  20  19  20  14  25  22   13
  19  |   8   8   9   9   7  15  13    3 |    8   8  13  12   7  12  13    9
  20  |   6  11  15   8   9   8  23    4 |    7   7  11  10   8  12  22    6
  21  |   9   8  12   9   6  17  16    4 |    8  12  14  12   6  22  21    9
  22  |   6  11  13   4   7  15  15    3 |    8  16  12  10   4  18  21    8
  23  |   8   6   9   9   9  13  21    4 |    8  13  14  11  10  14  22    9
  24  |   5   6  20   4   7  14  20    4 |   12  11  12  11   5  11  22    9
  25  |  13   9  24   4   7  10  13    4 |    9  13  13  12  10  19  12    9
  26E |   9  10  10   8  12  21  15    4 |   10  15  17  13   8  23  14    9
  27  |   7   9   8   5   7  11  17    3 |    8  10  15  10   8  13  13    9
  28E |  10  14  22  13  16  28  30    7 |   10  20  28  19   5  24  23   12
  29E |   9  17  25  11  13  23  12    6 |    7  22  19  13  14  22  20    9
  31E |  17  26  29  13  13  27  29    8 |   12  22  39  21   8  19  22   15
------|----------------------------------|----------------------------------
 RMS  |   9  12  18   8  10  22  22      |    9  14  18  13   8  23  21    9
 WRMS |   9  13  14   8  10  20  20      |

Table 3.0795.2   GPS week: 0795   Day: 2   MJD: 49811.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |   9  10  19  13  10  22  27    6 |    8  13  19  19   5  26  32   10
   2  |   7   8  12   5  10  14  30    4 |    8  12  13  11  11  12  17   10
   4  |   7   8  12   5   9  13  30    4 |   10  10  15   9   7  18  23    9
   5  |   3   7   8   5   9  15  14    3 |    9  14  13  12   5  10  16   10
   6E |   6  11  29  11  10  33  35    7 |    7  15  25  17   6  31  31    9
   7E |  13  12  23  12  10  20  19    6 |   10  24  23  21  11  26  31   17
   9  |   8  10  10   7  10  33  14    5 |    9  10  13   9   4  23  16    7
  12  |   7   6  11   8   5  12  22    3 |    5   7   9   9   4  21  23    6
  14  |  10  12  12  13   9  14  32    5 |   10  15  17  12   5  12  31    9
  15  |  15  17   9   7   7  18  25    5 |   10  18  17  10  10  11  19   11
  16  |   9  15  18  10  10  43  18    7 |   10  10  15  12   6  39  15    8
  17  |   8   9  19   4   8  15  21    4 |   12  10  14  12   6  15  21    9
  18E |  12  20  12  12  11  13  12    5 |   26  28  28  28  18  29  25   23
  19  |   9   9   9  11   6  13  15    4 |    9   9  10  11   6  12  19    8
  20  |   6   6   6   6   8  11  23    3 |    7   8   9  10   6  13  20    7
  21  |  13   7  14   9   8  22  29    5 |    8  12  15  12   5  26  29    9
  22  |   9  10  12   8   7  18  18    4 |   11  12  14   8   7  18  18    7
  23  |   6   6   8   8   9  17  17    4 |   11  12  16  12  13  23  25   12
  24  |  12  11  19   5   5  18  18    4 |   11   9  14  11   6  13  19    9
  25  |  14  13  10   5   8  11  18    4 |   10  16  10  11   9  17  16    9
  26E |   9  11  14   9  10  23  20    5 |    9  13  16  13   8  25  23    9
  27  |   7  11  16   7   9  12  20    4 |    7  12  13  11  11  10  16    9
  28E |  10  15  38  13  14  32  34    8 |    9  20  45  20   7  23  25   13
  29E |  10  10  18  13  13  23  12    5 |   13  21  19  18  13  28  23   14
  31E |  16  15  28  14  12  25  32    7 |   10  19  36  19   7  17  22   13
------|----------------------------------|----------------------------------
 RMS  |  10  11  17   9   9  21  23      |   10  14  19  14   8  21  22   10
 WRMS |  10  13  13   9   9  20  20      |

Table 3.0795.3   GPS week: 0795   Day: 3   MJD: 49812.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |   6   8  18  13  11  24  34    6 |    7  12  17  19   7  28  36   10
   2  |   6  11   7   7  10  50  23    6 |    9  15  12  12  12  33  17    9
   4  |   7  11  12   5   9  28  26    5 |   11  10  22   9   6  17  19    8
   5  |   9   7   7   6   8  28  17    4 |    9  11  12  13   7  22  25   10
   6E |   8   9  19  11  10  26  22    5 |    7  15  18  17  10  29  27   11
   7E |  12  10  38   7   9  21  32    7 |   10  25  33  22   9  27  27   17
   9  |   5   7   6   7  16  32  15    4 |    9  10  13  11   8  22  15    8
  12  |   8   8  11  10   6  14  20    4 |    6  10  10  11   7  19  29    7
  14  |   8  10  12  10  15  20  17    5 |   11  15  19  14  10  22  24   10
  15  |   5  18  11   6  12  16  17    4 |   10  14  15   9  10  13  21    8
  16  |   8  13  12   9  10  23  17    4 |   15  11  17  12   8  18  18    8
  17  |   6  10  14   6   7  13  23    4 |   11  12  16  13   8  16  16   10
  18E |  11  16  18  14  12  20  16    6 |   20  24  35  22  16  26  27   20
  19  |   5   9   8   9   9  26  13    4 |   10   9  10  12   7  27  18    9
  20  |   6   7   7   8   7  18  18    3 |    7   9  13  10   5  19  17    7
  21  |   8   7  11   7   8  22  18    4 |    9  12  12  12   8  29  24   10
  22  |   7   9  14   3   7  24  17    4 |    9  11  13   7   4  24  20    7
  23  |   5   8  12   9  10  26  19    4 |   11  14  14  14  14  26  26   12
  24  |   7  11  17   4   7  15  18    4 |   10  11  12  11   6  12  17    9
  25  |   9   8  11   5   7  18  22    4 |   10  13  14  12   6  12  23    9
  26E |   8  11  17   8  10  22  14    4 |   11  15  25  17  10  19  20   12
  27  |   5  12   8   8  10  17  25    4 |    9  11  11  11  10  20  20    8
  28E |   8  16  26  13  17  37  24    7 |    8  21  37  21   6  25  27   13
  29E |   9  10  21  12  12  21  20    5 |   12  15  25  16   6  28  32   12
  31E |   8  14  22  11  12  36  11    6 |   11  18  35  16   9  26  26   13
------|----------------------------------|----------------------------------
 RMS  |   8  11  16   9  10  25  21      |   10  14  20  14   8  23  23   10
 WRMS |   7  12  12   8  10  24  20      |

Table 3.0795.4   GPS week: 0795   Day: 4   MJD: 49813.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |   7   6  12  12  12  21  34    5 |   10  17  20  17   5  29  40   12
   2  |   5   7   5   5  10  19  35    4 |    9  11  16  11   8  20  26    8
   4  |   7  13  26   5  13  29  27    6 |   11  10  23   9   6  18  21    8
   5  |   5   5   7   6  12  16  19    3 |    8  10  16  13   5  18  27    8
   6E |   8   7  22  10   9  20  29    5 |    7  16  25  19   7  26  30   11
   7E |  13  13  24   8  12  22  29    6 |   12  28  23  25  13  32  27   18
   9  |   6   5  11   7   8  22  16    4 |   10   8  15  10   5  18  20    7
  12  |   5   4  10   8   5  14  23    3 |    6   6  14  10   6  16  30    5
  14  |   4   7  14  11  10  17  15    4 |   11  11  16  12   6  22  22    9
  15  |   6  11  32   9   9  20  24    5 |   10  12  18  10   7  17  29    8
  16  |   5   9  15   8  12  27  26    5 |    9  11  14  11   8  24  22    7
  17  |   8   8  12   7  10  11  21    4 |   10  13  15  12  11  19  21    8
  18E |  11  18  14  13  16  19  11    6 |   21  24  25  23  20  27  29   19
  19  |   6   6   8   6  10  21  20    4 |    9   8  13  12   6  27  16    8
  20  |   3   7  14   3  10  22  24    4 |    7   8  19  13  10  25  25    7
  21  |   9   9  11   6   8  20  16    4 |    8  12  12  14   7  28  21   11
  22  |   7  10  12   5   8  14  18    3 |    8  12  13   7   6  16  21    7
  23  |   5   8  11   7   8  13  17    3 |   10  16  16  15  13  21  23   13
  24  |   5   5  16   5   5  16  31    4 |    9  11  14  12   5  17  23    8
  25  |   5   7  18   6   7  23  19    4 |   10  12  16  10   7  18  21    9
  26E |  11  12  16   9  10  23  20    5 |   10  18  25  15  10  28  25   11
  27  |   9   8  10   8   9  10  19    4 |    9   9  16  11   6  17  12    7
  28E |  12  14  28  11  13  20  32    6 |    8  18  34  21   6  21  25   12
  29E |   9  11  18  14  13  31  34    6 |   13  20  26  17  13  38  39   15
  31E |  11  21  57   8   9  20  41    9 |    9  23  51  15   9  21  31   14
------|----------------------------------|----------------------------------
 RMS  |   8  10  20   8  10  20  25      |   10  14  21  14   8  23  25   10
 WRMS |   8  12  13   8  11  20  25      |

Table 3.0795.5   GPS week: 0795   Day: 5   MJD: 49814.0

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

Table 3.0795.6   GPS week: 0795   Day: 6   MJD: 49815.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |   9   6  20  14  11  33  28    6 |    9  15  20  20  11  30  31   11
   2  |   4   5  12   6   8  23  13    3 |    9   9  19  11  10  18  16    9
   4  |   4   7  14   7   9  15  22    4 |   11  12  15  10   7  18  20    9
   5  |   7   6   6   6   6  12  19    3 |   10  12  17  16   6  14  32   11
   6E |  13   9  20  16  11  23  21    6 |   10  17  24  21   9  31  25   12
   7E |  17  10  25  11  12  25  19    6 |   14  29  35  27  19  37  37   21
   9  |   7   5  15   9   7  24  18    4 |   10   8  18  12   6  23  25    8
  12  |   6   3   7  12   7   7  24    3 |    7   6  17   8   5  14  30    5
  14  |   6   5   7   8  10  15  17    3 |   11  11  16  12   6  13  20    9
  15  |  10  10  12   6   7  21  26    4 |   12  13  17   9  10  18  34   11
  16  |   8   7  12   9   6  12  34    4 |   12  11  16  11   7  17  25    9
  17  |   8   6  14   9  10  16  26    4 |   11  11  16  15   7  17  20   10
  18E |  11   6  10   9   9  13  19    4 |   24  26  30  28  17  26  35   24
  19  |   8   6  13   8  10  28  18    4 |   11   9  18  12   6  31  23    9
  20  |   5   3   9   9   7  10  20    3 |    9   8  16  15   7  17  23    8
  21  |   9   6  14   5   9  17  22    4 |    9  15  11  13   8  20  25   10
  22  |   8  12  12   5   7  18  18    4 |    8  12  14  10   8  17  22    8
  23  |   7   6  10   7   8  15  22    4 |   12  16  16  15  18  22  18   15
  24  |   6   5  22   5   7  15  22    4 |   10  11  17  12   5  19  21    9
  25  |   5   4  24   7   8  13  19    4 |   10  10  17  11   8  21  22    9
  26E |  10   9  21  12  10  18  32    5 |   13  19  33  25  15  22  31   15
  27  |   8   8   8   8  10  19  14    4 |   10   9  18  11   8  23  20    8
  28E |   8  14  28  16  15  23  23    6 |    6  21  36  24   4  26  28   12
  29E |   9   8  12   8   8   8  20    4 |   14  17  24  15  12  24  23   15
  31E |   7   6  27  12  14  19  31    6 |   12  20  25  18  10  22  30   14
------|----------------------------------|----------------------------------
 RMS  |   8   7  16  10   9  19  23      |   11  14  21  16  10  22  26   11
 WRMS |   8   8  13   9   9  19  20      |

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