Subject: [IGSREPORT-1032] IGS Final Orbit Comb(742)
From: Analysis Centres Coordinator / Geodetic Survey of Canada
Date: Fri, 17 Jun 1994 13:17:48 PDT

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IGS Electronic Report    Fri Jun 17 13:17:48 PDT 1994      Message Number 1032
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Author: Analysis Centres Coordinator / Geodetic Survey of Canada
Subject: IGS Final Orbit Comb(742)

IGS Final Orbit Combination Week 0742             (Mar 27, 1994 - Apr 02, 1994)

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

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS07427.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 IGS Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

 IGS07420-6.SP3  IGS GPS ephemeris files for days 0-6, week 0742 in SP3 format.
 IGS07427.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS07427.SUM    Complete report.

  The old Rapid Service files have been renamed to:

 IGR07420-6.SP3  Rapid Service ephemeris files for days 0-6.
 IGR07427.ERP    Rapid Service earth rotation parameters (ERP).
 IGR07427.SUM    Rapid Service complete report.

REMARKS on IGS Final Orbit Combination:

1. 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. Starting with the GPS week 742 a new clock combination scheme was put in
   place. Now the clock solution alignments to the GPS time use only non-SA
   broadcast clock corrections (currently PRN 12, 15, 20) and the centre clock
   weights are determined from the fit RMS of this alignment. In this
   way the quality of the clock alignments (to the GPS time) are not affected
   by SA and more realistic and objective weights are determined and used in
   the clock combination, provided the non-SA satellites are representative of
   each centre clock solution quality.

4. Broadcast clock corrections show late acknowledgment of clock resets for
   PRN03 on day 0-2 (Mar 27-29), PRN13 on days 1-5 (Mar 28-Apr 01) and PRN07 on
   day 3 (Mar 30).

5. PRN20 on day 3 (Mar 30) was excluded from the clock weights determination
   since the broadcast clock corrections did not reflect what was observed by 
   the Analysis Centres.   

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

            Day (Date)  |  PRN   | Centres | Shift/Outliers
           -------------+--------+---------+---------------
           0 (March 27) |  20    |  ESA    | ~200 nanosec.
           1 (March 28) |  ALL   |  JPL    | Few usec.    
           1 (March 28) |  20    |  ESA    | Few usec.           
           3 (March 30) |  13    |  JPL    | Few usec.             
           3 (March 30) |  16    |  JPL    | ~120 usec.
           3 (March 30) |  16    |  EMR    | ~4000 usec.
           4 (March 31) |  20    |  ESA    | ~200 nanosec.
           5 (April 01) |  20    |  ESA    | ~200 nanosec.

7. There was a maneuver of PRN04 on day 1 (March 28) (ref. NANUs 092-94087 and
   107-94087). 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 NGS solution for 
   PRN04 on the day of maneuver was excluded from combination based on the 
   assumption that they are extrapolation instead of actual modeling.
   Moreover, ESA, NGS and the combined solutions for PRN04 were excluded from
   the long arc evaluation on day 1 due to unrealistic RMS caused by the
   maneuver.

8. Several orbit solutions were excluded from combination because they were
   biasing the weighted average (indicated by long arc RMS). These were still
   used for statistics computation. The following table lists the exclusions:

                Day (Date)  |  PRN  | Centres  
               -------------+-------+--------
               0 (March 27) |  13   | NGS
               1 (March 28) |  04   | NGS
               3 (March 30) |  07   | NGS
               4 (March 31) |  07   | NGS
               5 (April 01) |  07   | NGS

9. A state vector reset was modeled for PRN04 (day 2/March 29) in the long arc
   process to account for the orbit maneuver.

10.The SIO orbits were used with Bulletin B pole instead of its corresponding
   pole solution in the long arc process.

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS07427.SUM).

Table 1: Week 0742 summary.                       (Mar 27, 1994 - Apr 02, 1994)

Table 1.0742.a   GPS week: 0742   MJD: 49438.0-49444.0

         Mean and standard deviations of transformation parameters.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .03  .02   .45  -.26 -2.10  -.1   .14   .13 |  130.8 -246.116029.2
    |  .01  .01  .01   .35   .63  1.70   .2             |  357.9  658.9
emr |  .01  .02  .00   .24   .20 -2.69  -.3   .19   .16 | -623.0  -19.730184.2
    |  .01  .01  .01   .40   .48  1.58   .1             |   33.9   11.2
esa |  .01  .01  .01   .80   .04 -2.74  -.2   .30   .20 |     .9  -11.0   12.4
    |  .01  .01  .01   .35   .54  1.62   .3             |   21.6   15.0
gfz | -.05  .01  .02  -.04   .98 -3.30  -.3   .16   .15 | -604.2  -23.4   20.0
    |  .01  .01  .01   .38   .26  1.76   .1             |   51.5   27.0
jpl |  .00 -.02  .03   .70   .02 -2.55   .1   .16   .13 |-1025.7  789.310975.2
    |  .01  .01  .01   .36   .55  1.43   .2             | 1433.8 2870.9
ngs |  .04 -.02 -.05  1.05   .72 -1.47   .0944.26 24.63 |     .0     .0     .0
    |  .03  .02  .01   .45   .97  1.92   .4             |     .0     .0
sio |  .03 -.02 -.09  1.28   .71 18.80  1.0   .21   .21 |     .0     .0     .0
    |  .01  .01  .01   .66   .31 11.00   .1             |     .0     .0

Table 1.0742.b   GPS week : 0742   MJD: 49438.0-49444.0

         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 |  11  12   9   9   7   7   6 |
   2  |   4   5   5   6   5   5   4 |
   3  |   4   5   4   7   5   5   7 |
   4  |   9   0  12   6   5   6   5 | Maneuver on day 1.
   5  |   6   7   5   6   5   5   4 |
   6E |  10  10   6   8   9   9  12 |
   7E |   6   6   9  15 148  86   8 | Sparse tracking on days 3, 4 and 5.
   9  |   6   4   5   6   4   5   5 |
  12  |   5   4   4   5   4   5   5 |
  13  |  15   9   7   6   5   4   4 |
  14  |   6   6   5   6   5   5   6 |
  15  |   6   4   7   6   7   8   5 |
  16  |   8  10   7   9   5   8   8 |
  17  |   6   7   4   4   5   5   5 |
  18E |   6   7   7   6   6   6   7 |
  19  |   4   4   4   5   4   4   4 |
  20  |   5   6   6   7   5   6   6 |
  21  |   6   6   5   5   5   5   6 |
  22  |   9   7   8   7   7  11   9 |
  23  |  11   9   7  10   7   9   8 |
  24  |  10   6  13  10   4   8   6 |
  25  |   7   6  12  10   7   8   8 |
  26E |   8  10   8  10   7   8   8 |
  27  |   4   6   4   5   4   4   5 |
  28E |   5   6   6   7   7   8   8 |
  29E |  10   6   6   5   5   6   5 |
  31E |   6   6   8   9   6   9   8 |

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.
         Units: meters, mas, ppb, nano-sec, nano-sec/day.

Table 2.0742.0   GPS week: 0742   Day: 0   MJD: 49438.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .04  .00   .09   .52 -3.59  -.2   .14   .13 |  -32.0   35.3 1260.0
emr | -.01  .02  .02  -.08   .74 -4.41  -.4   .17   .17 | -634.4  -36.1   10.9
esa |  .00  .01  .02  1.29  -.14 -4.36  -.5   .25   .20 |    6.8  -16.7   13.4
gfz | -.06  .00  .03  -.39  1.29 -5.21  -.6   .19   .19 | -543.0  -40.1   21.0
jpl | -.01 -.02  .03   .82   .60 -3.87  -.1   .13   .13 | -541.0  -46.8   17.4
ngs |  .04 -.02 -.08  1.20   .50 -3.97   .4   .99   .48 |     .0     .0     .0
sio |  .03 -.02 -.09  2.57   .86 32.60  1.0   .23   .26 |     .0     .0     .0

Table 2.0742.1   GPS week: 0742   Day: 1   MJD: 49439.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .01  .03   .28  -.07 -4.78  -.2   .15   .14 |    1.9   -6.0  101.4
emr |  .01  .01  .00  -.09   .71 -4.86  -.5   .14   .14 | -575.0  -21.1    4.7
esa |  .01  .00  .01   .61   .62 -5.10  -.2   .22   .18 |    -.4    8.6   11.3
gfz | -.07  .00  .02  -.08  1.03 -5.81  -.2   .22   .18 | -555.0  -47.3   22.5
jpl |  .02 -.03  .02   .71   .60 -4.55   .1   .11   .11 |-4221.0 7170.025340.0
ngs | -.02  .01 -.07   .79  1.61 -4.09   .4****** 65.16 |     .0     .0     .0
sio |  .01 -.02 -.08  1.37   .30 31.15   .7   .20   .22 |     .0     .0     .0

Table 2.0742.2   GPS week: 0742   Day: 2   MJD: 49440.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .03  .01   .68  -.29 -2.12   .3   .12   .11 |    3.6   -3.0   87.5
emr |  .01  .02  .01   .79  -.05 -2.68  -.4   .19   .19 | -593.8  -14.0    5.3
esa |  .02  .02  .02  1.00   .17 -2.64   .2   .20   .17 |   -6.5   -5.6   13.4
gfz | -.04  .01  .01   .03   .70 -3.42  -.4   .14   .13 | -580.6  -26.9   19.9
jpl |  .00 -.02  .02  1.14   .11 -2.69  -.2   .14   .13 | -583.8  -11.9   19.9
ngs |  .05 -.06 -.04  1.15  1.51 -1.18   .2   .48   .34 |     .0     .0     .0
sio |  .03 -.03 -.10  1.48   .31 19.02   .9   .21   .23 |     .0     .0     .0

Table 2.0742.3   GPS week: 0742   Day: 3   MJD: 49441.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod | -.01  .02  .03   .23  -.98 -1.88   .1   .17   .16 |  942.0-1740.042390.0
emr |  .02  .03  .01   .12  -.53 -2.41  -.3   .18   .18 | -606.5  -21.879860.0
esa | -.01  .00  .01   .42  -.74 -2.97  -.2   .22   .21 |  -30.6  -27.1   11.4
gfz | -.04  .02  .02  -.37   .69 -3.18  -.5   .13   .13 | -598.9  -24.0   22.9
jpl | -.01 -.03  .04   .18  -.76 -2.58   .0   .18   .16 |   94.0-1549.614180.0
ngs |  .08 -.01 -.05  1.06   .13 -1.00  -.7  1.39   .89 |     .0     .0     .0
sio |  .03 -.03 -.11   .98   .63 17.49  1.0   .21   .19 |     .0     .0     .0

Table 2.0742.4   GPS week: 0742   Day: 4   MJD: 49442.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .02  .02   .38  -.51 -1.46  -.3   .12   .11 |   -3.5    1.9   78.6
emr |  .02  .02  .00  -.23   .12 -1.92  -.3   .28   .15 | -629.5  -22.4    7.0
esa |  .01  .01 -.01   .33  -.38 -1.40   .2   .39   .14 |   34.8  -24.4   14.9
gfz | -.04  .01  .01  -.34   .80 -2.43  -.3   .12   .11 | -623.3  -28.8   15.5
jpl |  .00 -.02  .03   .30  -.24 -1.81   .3   .09   .09 | -625.0  -19.5   15.0
ngs |  .05 -.04 -.04   .20  -.10  -.96  -.4 14.76   .31 |     .0     .0     .0
sio |  .01 -.01 -.09   .59   .85 16.32   .9   .21   .21 |     .0     .0     .0

Table 2.0742.5   GPS week: 0742   Day: 5   MJD: 49443.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .03  .02   .35 -1.01   .56  -.2   .14   .12 |    4.1  -11.1   84.1
emr |  .02  .01 -.01   .55  -.16  -.14  -.2   .20   .16 | -646.7  -23.2    6.2
esa |  .01  .01  .00   .92  -.05  -.38  -.4   .44   .25 |   17.8  -20.4   11.2
gfz | -.05  .01  .02   .25  1.02  -.62  -.3   .14   .13 | -636.7  -31.7   17.0
jpl | -.01 -.02  .04   .71  -.53  -.12   .3   .30   .13 | -639.6  -19.6   17.0
ngs |  .06 -.02 -.05  1.38  -.55  1.17  -.1 33.67   .52 |     .0     .0     .0
sio |  .03 -.03 -.07   .67   .90  -.24  1.2   .19   .18 |     .0     .0     .0

Table 2.0742.6   GPS week: 0742   Day: 6   MJD: 49444.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .00  .03  .01  1.14   .52 -1.45   .0   .15   .13 |    -.4     .4   75.0
emr |  .01  .02  .00   .62   .55 -2.36  -.2   .14   .14 | -675.2    1.0    7.8
esa |  .02  .01  .00  1.02   .80 -2.33  -.1   .27   .22 |  -15.7    8.4   10.9
gfz | -.04  .00  .02   .63  1.33 -2.45  -.2   .16   .15 | -692.2   35.2   20.4
jpl | -.01 -.01  .04  1.06   .40 -2.24   .0   .11   .11 | -663.4    2.6   20.4
ngs |  .01 -.02 -.05  1.59  1.97  -.29   .1   .41   .36 |     .0     .0     .0
sio |  .03 -.02 -.09  1.32  1.12 15.29  1.0   .20   .18 |     .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 3.0742.0   GPS week: 0742   Day: 0   MJD: 49438.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  19  25  46  34  11  36  37   11 |   39  34  64  45  61  43  80   45
   2  |   5   6  19   8   6  20  19    4 |    9  12  14  11  11  17  29    9
   3  |   9  13  13   6  10  22  11    4 |   13  10  19  12  13  15  30    9
   4  |  15  13  15  16  20  49  35    9 |    2   2   2   3   1   2  11    1
   5  |  10  23  11  10   8  35  17    6 |   11  22  14  14  12  25  24   10
   6E |  23  27  23  26 ---  23  14   10 |   96  93 105  92 ---  97  97   95
   7E |   9  22  25  15  16  18  12    6 |   14  25  48  21  30 999  36   31
   9  |   8  15  27   9   8  37  16    6 |    8  18  11  10  10  22  28    8
  12  |   9  11  18   9   8  37  15    5 |    7  18   9  12   5  28  29    8
  13  |  24  20  56 ---  22 482  39   15 |   13   9  27 ---  13 362  33    9
  14  |   8  19  17  16  15  29  22    6 |   14  13  15  21  17  31  31   14
  15  |  16  15   9  10  12  21  22    6 |   10  14  15  13  13  25  28   12
  16  |  11  20  16  26  16  34  24    8 |   14  15  17  29  24  24  48   13
  17  |   9   8  15   8   8  52  14    6 |   11  10  20  21  17  55  30   14
  18E |  12  19  15  20  15  20  11    6 |   11  28  20  35  23  35  42   17
  19  |   6   8  13   9   6  22  17    4 |    9   9  10   9  11  16  26    9
  20  |   7  14  14  10   6  21  20    5 |   13  12  18  14  10  16  29    9
  21  |  11  13   9  19   9  16  24    6 |   11  14  15  13  16  21  33   12
  22  |  18  28  36  14  13  30  35    9 |   13  16  13  20  13  27  30   10
  23  |  32  21  44  18  18  54  20   11 |   24  40  29  28  40  47  57   29
  24  |  18  19  17  14   8  77  35   10 |   11  17  10  23  13  39  43   10
  25  |  14  10  18  15  19  40  22    7 |    8  14  13  16  13  33  39    8
  26E |  12   9  22  21  14  37  31    8 |   23  24  43  21  28  43  33   22
  27  |   7   5  24   9   9  23  10    4 |    9   8  16   9   9  25  25    8
  28E |   8  12  16  19  14  22  12    5 |   13  18  18  17  16  17  29   12
  29E |   7   8  20  49   9  54  13   10 |   21  20  24  58  21  36  33   23
  31E |   8   9  22  12  11  24  27    6 |    8  11  21  18  20  20  29   11
------|----------------------------------|----------------------------------
 RMS  |  14  16  24  19  13  99  23      |   23  25  31  28  21 207  40   24
 WRMS |  13  16  19  19  12  48  26      |

Table 3.0742.1   GPS week: 0742   Day: 1   MJD: 49439.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  26  20  37  59  10  49  17   12 |   19  26  41  47  38  55  52   30
   2  |  10  10  13  19   8  31  13    5 |   11  14  19  18  14  24  36   12
   3  |  12  11  16   8  15  26  13    5 |    9  12  19  12  11  22  36   11
   4  | --- ---  31 --- --- >>> ---    0 |  --- ---   0 --- ---   0 ---  ---
   5  |  18  19  27  14   8  38  22    7 |   13  22  21  15  17  27  35   14
   6E |  21  16  38  24 ---  46  11   10 |   50  56  61  48 ---  59  63   52
   7E |  12  10  24  22  10  27  15    6 |   18  29  37  33  40 835  43   29
   9  |  11   8  10  12   5  25  12    4 |    7  11  12  12  12  27  36   10
  12  |   5   7  21  10   7  23  12    4 |    5   8  17  14  10  17  36    7
  13  |  12  13  14  11  22  45  41    9 |    9  11  32  12  15 101  36   13
  14  |  10  21  22   7  10  33  15    6 |   14  13  16  18  18  34  34   14
  15  |   5  11  15  11  11  21   8    4 |   10  16  23  13  13  24  39   14
  16  |  14  18  16  28  12  79  25   10 |   11  23  19  27  18  53  49   16
  17  |  15  16  21   9  12  24  25    7 |   13  22  20  13  11  30  38   13
  18E |  13   7  13  22   7  60  12    7 |   11  16  19  29  16  55  42   17
  19  |   5   8   9  10   7  34  10    4 |   11  10  10   9  12  28  35   12
  20  |  14   8  17  15  10  35  22    6 |   12  17  13  14  20  26  31   13
  21  |  20   8  32  20   7  13  15    6 |   14  17  23  16  17  16  38   13
  22  |  15   9  15  13  14  36  27    7 |   15  13  19  19  16  34  43   11
  23  |  28  18  31  31  10  30  26    9 |   43  55  64  62  55  49  64   50
  24  |  15  10  18  15  13  37  19    6 |    9  13  12  11  13  65  34    9
  25  |   7  10  19  13   7  51  21    6 |    8  16  18  14  12  47  35   10
  26E |  20  22  22  40  16  36  30   10 |   14  24  25  44  27  40  41   14
  27  |  10   9  20   9   8  52  11    6 |   12   8  21   9  10  43  37   11
  28E |  15  15  19  17   5  30  13    6 |   16  27  29  20  20  15  36   18
  29E |  16   7  12  15  12  49   8    6 |   15  17  21  24  16  38  35   15
  31E |   8  15  20  24  10  36  13    6 |   10  12  27  14  19  30  34   11
------|----------------------------------|----------------------------------
 RMS  |  15  13  22  22  11 >>>  19      |   17  22  27  25  21 169  40   20
 WRMS |  14  13  18  18  11 >>>  21      |

Table 3.0742.2   GPS week: 0742   Day: 2   MJD: 49440.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  13  10  40  26  10  40  21    9 |   30  30  60  26  46  33  54   33
   2  |   9  10  14   8  13  22  16    5 |    9  16  15  17  20  22  34   13
   3  |   9  12   9   8   8  30  11    4 |   13  10  16  13  11  26  31    9
   4  | ---  29  23  14 ---  55  23   12 |  ---  20   6  14 ---  35  18    8
   5  |   6  16  10  11   7  22  19    5 |   12  17  19  16  15  26  37   15
   6E |  11  10  17  14 ---  32  11    6 |   66  69  84  73 ---  84  77   72
   7E |  14  11  17  27  29  29  31    9 |   19  30  68  30  39 999  37   38
   9  |  11  12  14  11   8  40  15    5 |   10  12  15  15  12  33  42   10
  12  |   9   9  10   4  13  32  13    4 |    7  12  17  12  13  30  38   10
  13  |  11  16  15   5  11  53  34    7 |   12  17  13  11  12  49  34    8
  14  |  11  12  14  12  13  20  18    5 |   16  16  18  17  17  25  45   15
  15  |   9  14  21  10  20  27  26    7 |   10  16  19  13  16  25  46   12
  16  |  16  13  17  13  17  61  12    7 |   14  24  16  20  22  58  42   15
  17  |   8   7  10  11   6  23  21    4 |   15  12  13  18  15  17  36   10
  18E |  13  25  13  22  12  39  14    7 |   18  18  18  32  23  51  46   22
  19  |   9  13   5   9   9  17  11    4 |    7  10  10  13  17  13  39   10
  20  |   7  16  26   7  16  21  23    6 |   10  18  19  14  16  27  41   13
  21  |  10   8  13  10   8  29  23    5 |   12  12  16  13  17  28  39   12
  22  |  10  12  25  11  10  73  20    8 |   13  13  18  20  16  58  43   14
  23  |  22  18  19   7   8  37  18    7 |   44  51  63  61  55  61  56   48
  24  |  10  18  11  14  10 155  23   13 |   12  19   8  13  20 134  36    9
  25  |  17  57  30  12  12  27  39   12 |   11  64  15  18  15  25  44   13
  26E |  13  12  14  11  15  70  31    8 |   21  16  16  22  17  48  48   16
  27  |  11  12   9   7   4  26  18    4 |    9  11  14  13  12  29  41   11
  28E |  13  11  22  15  12  25  11    6 |   11  24  29  25  21  35  35   17
  29E |  12  10  19  18  14  36  13    6 |   19  21  23  31  25  30  41   21
  31E |  10  23  32  24  18  32  15    8 |   12  16  40  26  21  42  32   13
------|----------------------------------|----------------------------------
 RMS  |  12  18  19  14  13  48  21      |   20  26  31  26  23 197  42   22
 WRMS |  11  18  17  13  13  33  22      |

Table 3.0742.3   GPS week: 0742   Day: 3   MJD: 49441.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  18  16  25  15  29  32  29    9 |   28  35  46  33  52  44  50   34
   2  |  10   8  17  16  11  37  17    6 |   10  16  13  17  15  26  29   12
   3  |   8  29  18   8  15  24  19    7 |    8  19  20  14  13  25  22    8
   4  |  11  14  15   8   6  55  18    6 |    8  15  10  15   8  30  25    6
   5  |  21  12  10   5  13  29  24    6 |   15  24  15  16  20  29  20   13
   6E |  14  13  29  15 ---  23  18    8 |   73  71  82  71 ---  69  74   72
   7E |  30  20  28  33  56 690  29   15 |   33  27  66  39 104 999  36   29
   9  |  15  11   9  12  17  36  19    6 |    9  12   9  18  21  33  30    9
  12  |  11  11  10  10   7  27  16    5 |    7  17  10  15   8  26  22    7
  13  |  10  10  24   5   8  27  27    6 |   11   9  27  15  11  38  24    9
  14  |  13  16  22  12  15  16  16    6 |   13  16  20  15  23  22  35   15
  15  |  19  17  11  14   9  24  11    6 |    8  14  15  17  17  15  26   10
  16  |  12  20  17  10  20  68  24    9 |   12  28  23  19  19  65  43   16
  17  |  11  11  13   8   9  19  10    4 |   11  15  23  21  14  27  21   12
  18E |  14  18  19  13  12  29  10    6 |    8  20  18  23  23  36  27   14
  19  |  10   5  17   8  16  22  15    5 |   11  12  11  11  14  14  21    8
  20  |  12  18  17  11  13  42  27    7 |   12  19  15  15  17  32  31   10
  21  |  12   9  18   9   5  19  19    5 |   14  18  19  18  15  32  30   14
  22  |  22  16  27   7  14  36  20    7 |   21  15  15  16  16  40  28   10
  23  |  33  28  20  18   9  31  29   10 |   40  54  54  43  49  48  55   44
  24  |  13  49  17  13  19  40  22   10 |    9  47  10  17  16  31  29    8
  25  |  20  14  26  15  16  81  33   10 |    7  19  15  25  20  88  28   14
  26E |  20   9  35  13  15  76  17   10 |   24  15  27  22  23  55  24   14
  27  |   9   8   8   6  18  28  14    5 |   11  13  14  10  15  21  22    8
  28E |  12  13  24  15  18  30  19    7 |   15  17  35  26  29  37  33   20
  29E |  13   9  17   9  12  26  10    5 |   15  23  25  25  27  24  32   18
  31E |  14  16  40  13  15  48  20    9 |    9  14  41  19  22  39  25   12
------|----------------------------------|----------------------------------
 RMS  |  16  18  21  13  18 138  21      |   21  26  30  25  30 196  33   21
 WRMS |  16  18  20  13  16  88  19      |

Table 3.0742.4   GPS week: 0742   Day: 4   MJD: 49442.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  18  12  33  18  10  45  16    7 |   37  52  39  54  54  67  52   47
   2  |   6  16  19   7   8  31  14    5 |    9  18  14  13  13  25  37   10
   3  |   8  19  18   9   6  28  11    5 |   10  13  19  15  11  27  29    9
   4  |   5  11   9   9   6  35  29    5 |    8  10  14  14  12  31  40    9
   5  |   6  15   8   8   9  31  23    5 |    8  13  11  13  13  25  34   10
   6E |  16  17  39  18 ---  37  15    9 |   57  61  65  60 ---  74  66   58
   7E | --- 124 177 --- --- >>> ---  148 |  ---  82 273 --- --- 999 ---  170
   9  |   7   8  11   8   6  27  20    4 |    9  12  16  14  13  24  34   10
  12  |   7  15   9   7   5  25  17    4 |    6  11  16  11   8  21  30    6
  13  |   8  12  14   8   4  25  27    5 |   10  16  12  14  12  25  30    9
  14  |  12  17  16   8  12  25  21    5 |   13  19  17  16  16  22  26   14
  15  |  17  19  13  13  13  42  20    7 |    8  17  12  18  13  27  31   10
  16  |  12  14  13   8   5  38  12    5 |   12  16  17  19  17  49  37   11
  17  |  13   6  31   9   6  25  19    5 |   15  12  19  15  12  20  31   10
  18E |  15  16  22  12  10  31  11    6 |    7  16  18  20  19  34  40   14
  19  |  11   4  10   8   9  21  10    4 |    8   8  13  10  12  20  35    8
  20  |   6   9  13  11   6  27  26    5 |   10  13  13  13  11  28  42    9
  21  |  15  14  17  16   5  20  17    5 |   12  21  14  25  18  22  26   14
  22  |   8  25   8   9   9  59  15    7 |   13  29  24  14  16  56  38   12
  23  |  22  15  23  13  15  41  19    7 |   57  56  71  62  67  59  82   59
  24  |   6  10  14   8   5  18  21    4 |    9  17  13  14  11  44  38    9
  25  |  14  18  16  14   7  50  31    7 |   11  15  24  16  17  57  42   14
  26E |  10   9  18   8  11  50  29    7 |   17  14  17  23  23  34  32   17
  27  |  12   7  17   7   6  30  11    4 |   10   9  15  10  11  22  36    7
  28E |  13  15  23  23   6  26  34    7 |   12  23  21  23  22  32  48   15
  29E |  10  12  21  11   6  24  14    5 |   15  19  22  22  20  24  42   16
  31E |  10  15  23   9   9  35  20    6 |    8  12  18  19  19  33  29   12
------|----------------------------------|----------------------------------
 RMS  |  12  28  39  11   8 >>>  20      |   20  28  58  25  22 195  40   38
 WRMS |  10  15  13  11   8  30  21      |

Table 3.0742.5   GPS week: 0742   Day: 5   MJD: 49443.0

               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  11  46  10  20  42  16    7 |   39  40  40  32  58  41  95   43
   2  |  11  15   9  15   9  21  15    5 |   10  16  17  15  12  24  69   11
   3  |  10  20  18  10  13  21  10    5 |   10  12  19  19  17  25  70   12
   4  |  10  15  18  11   9  38  13    6 |    9  15   8  20  12  29  71   11
   5  |   7  17  11  11   7  28  17    5 |    9  13  16  11  14  28  63   10
   6E |  13  18  44  20 ---  28  13    9 |   48  49  67  57 ---  58  80   50
   7E | ---  66 182 --- 139 >>> ---   86 |  --- 131 115 --- 233 999 ---  180
   9  |  15   8  18   5   5  21  17    5 |   11  12  22  13  12  22  70   11
  12  |   8  12  19   6   6  33  17    5 |    6  11  23  12   6  23  69   10
  13  |   8   9  25   6   9  18  15    4 |   11   9  23  17  11  34  67   10
  14  |  14  13  17  11   7  14  13    5 |   13  16  17  15  20  20  67   16
  15  |  26  12  24  10  11  51  16    8 |   11  11  19  12  12  29  70    9
  16  |  21  18  26  11   7  50  20    8 |   16  17  22  16  17  44  71   13
  17  |   8  11  30  11  11  20  15    5 |   12  15  16  17  14  22  69   12
  18E |  12  19  16  13   9  35  16    6 |   12  17  19  14  23  35  79   16
  19  |  11   8  20   8   8  19  11    4 |    8  10  12  13  11  18  65    9
  20  |   7  11  26   6  10  40  24    6 |   11  16  18  11  13  26  71   12
  21  |  11   8  26  10   7  19  15    5 |   11  16  16  18  16  26  69   11
  22  |  14  29  50   8  12  87  17   11 |   21  17  18  13  14  74  70   14
  23  |  24  23  26  19  10  23  31    9 |   58  70  78  70  67  58 113   66
  24  |  11  15  11  11   9  80  18    8 |    9  16  11  20  14  53  73   10
  25  |  14  17  40  20   7  35  18    8 |   12  17  31  23  11  41  73   13
  26E |  22  10  20  11  12  48  32    8 |   29  22  23  21  23  55  74   17
  27  |  11   9  14  10   7  22  11    4 |    8  11  14  14  11  20  65   10
  28E |  10  18  13  23  14  28  31    8 |   20  31  26  21  21  32  82   23
  29E |  16  11  25  12  18  25  11    6 |   18  21  19  22  29  28  72   18
  31E |   9  12  36  29  19  44  18    9 |   13  13  28  22  20  39  73   14
------|----------------------------------|----------------------------------
 RMS  |  14  19  44  13  29 >>>  18      |   20  34  35  24  51 195  74   40
 WRMS |  12  15  25  13  13  51  18      |

Table 3.0742.6   GPS week: 0742   Day: 6   MJD: 49444.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1E |  13   9  17  11  13  34  20    6 |   38  42  53  40  50  59  77   45
   2  |  10   8  17  10   7  26  13    4 |   11  15   9  15  11  20  55   13
   3  |   9  10  49   9   8  38  11    7 |   12  13  15  18  11  26  57   12
   4  |   7   6  21   9   9  43  21    5 |   10  15   8  19  12  41  46   10
   5  |   6  10   7   8   8  29  17    4 |    9  11  14  15  14  25  53   14
   6E |  23  21  54  34 ---  27  12   12 |   72  77  82  86 ---  77  98   78
   7E |  24  11  20  21   8  42  30    8 |   29  61  73  27 116 999  37   56
   9  |   6   4  21  11   7  44  13    5 |   12  12  14  15  13  39  49   12
  12  |  14   8  13   9   6  40  16    5 |   10  11  16  17  10  37  54   12
  13  |   9   3  15   8   6  27  19    4 |   11  10  14  17  11  27  59   12
  14  |  16  15  20  11   9  28  25    6 |   13  25  22  24  19  28  52   20
  15  |   4  10  15  11  14  43  16    5 |   12  15  15  14  15  49  48   13
  16  |  15   9  22  22   9  61  23    8 |   20  17  17  18  26  43  47   13
  17  |   9   6  22  14  10  24  14    5 |   12  13  19  23  13  19  52   15
  18E |  10  21  36  12  12  39  13    7 |   12  19  18  33  27  38  53   19
  19  |   9  10  12  16   7  19  13    4 |    8  11   9  20   9  17  47   11
  20  |  20   9  18   6   7  38  23    6 |   12  12  11  17  13  33  50   13
  21  |  11  12  20  14   8  47  16    6 |   15  21  16  16  18  43  50   15
  22  |  12  24  51  18   6  46  20    9 |   14  15  16  20  11  48  56   12
  23  |  23  21  31  18  10  40  16    8 |   35  52  47  54  46  54  81   48
  24  |   9  11  19  13  18  40  16    6 |    9  18  12  20  13  26  57   12
  25  |  22  19  26  14   7  43  28    8 |   13  19  15  22   9  43  56   13
  26E |  24   9  29  16  11  44  32    8 |   31  18  21  30  24  35  49   16
  27  |  12  12  14  16   7  29  11    5 |   10  13  11  21  10  21  50   13
  28E |  17  12  29  18  10  73  23    8 |   12  25  21  23  22  71  66   20
  29E |  12   8  16  14  10  34  11    5 |   17  29  30  36  31  28  52   26
  31E |  11  21  22  19  22  41  24    8 |   10  14  23  16  23  35  68   17
------|----------------------------------|----------------------------------
 RMS  |  14  13  26  15  10  40  19      |   21  27  29  29  30 196  57   26
 WRMS |  12  13  21  14  10  35  17      |