Subject: [IGSREPORT-1161] Wk 0759 IGS Rapid Orbits
From: AC Coordinator / NRCan GSDivision
Date: Fri, 12 Aug 1994 13:10:36 PDT

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IGS Electronic Report    Fri Aug 12 13:10:36 PDT 1994      Message Number 1161
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0759 IGS Rapid Orbits

Rapid Service IGS Orbit Combination - Week 0759   (Jul 24, 1994 - Jul 30, 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 (IGS07597.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 Rapid Service Orbit files generated and uploaded into CDDIS @ NASA/GSFC
are:

 IGS07590-6.SP3  IGS GPS ephemeris files for days 0-6, week 0759 in SP3 format.
 IGS07597.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS07597.SUM    Complete report.

REMARKS on IGS Rapid Service Orbit Combination:

1. Starting with week 0730, the above satellite clock correction combination
   was put in place. The centres used in the 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. Starting with the GPS week 750 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) is 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. Starting with the GPS week 756, the IGS erp file is submitted in the new 
   IGS standard erp format (see IGS Mail #662).  Since then, all ACs have been 
   submitting their erp files in the new format.

5. Starting with the GPS week 757, pole rates (for centres submitting these 
   rates) are used in the orbit combination.  Sub-centimetre differences are 
   seen between using and not using the pole rates in the IGS combined orbits.
   Overall, only slight differences are seen between the two methods.
  
   Pole rates and LOD (LODR) have been used in the long arc evaluation for a 
   few weeks now (as soon as a centre submitted these values in their erp file).
   In most cases, smaller RMS (up to a few cm) are obtained when LOD (LODR)
   are taken into consideration.

6. PRN12 on day 209 (Jul 28) was set unhealthy starting at 23:25 
   (ref. NANU 193-94209) until day 211 (Jul 30) at 01:55 (ref. NANU 195-94211).

   Also, PRN21 on day 207 (Jul 26) was set unhealthy starting at 20:34 until
   day 208 (Jul 27) at 05:58 (ref. NANU 192-94208).

7. PRN12 on day 4 (Jul 28) was excluded from the clock weights determination
   since the broadcast clock corrections did not reflect what was observed by 
   the Analysis Centres.  

8. PRN28 (along with PRN 12,15 and 20) was included in the clock weights 
   determination for the whole week since its Selective Availability (SA) was 
   turned off.

9. Starting with the GPS week 759, a new clock strategy was implemented when 
   centre specific clock shifts, with respect to broadcast clock corrections,
   were noticed.  These shifts are due to resets at the clock reference station
   which is used as a time reference, rather than bad clock solutions.  A new 
   clock offset and drift are estimated when a centre shows such behavior.
   Note that only the first clock offset and drift are output to the summary 
   file.  However, the clock RMS includes all RMS from all offsets.  
   In summary, the following clock shifts/resets were noticed and 
   accounted for:

              Day (Date)  |   Centres     | Shifts/Resets
             -------------+---------------+-------------------
              3 (Jul 27)  | EMR,GFZ,JPL   | ~1 usec. (~19:30)

10.Some 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 | Shifts/Outliers
           -------------+-------------+---------+--------------------
            2 (Jul 26)  |   2,5,9     |   ESA   | up to ~ 350 nanosec.
            4 (Jul 28)  |  6,24,27    |   ESA   | up to ~ 80  nanosec.
            6 (Jul 30)  |    ALL      |   GFZ   | ~ a few nanosec.

11.Some orbit solutions were excluded from combination because they were
   biasing the weighted average (as indicated by long arc RMS). They were still
   used for statistics computation.  The following table lists the exclusion:

                     Day (Date)  | PRN  | Centres  
                    -------------+------+--------
                     3 (Jul 27)  |  21  | EMR,NGS

   Moreover, NGS solution for PRN21 was excluded from the long arc evaluation
   on day 3 due to unrealistic RMS caused by this solution.

12.Centre specific UT1-UTC values for ESA, NGS and SIO 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 (IGS07597.SUM).

Table 1: Week 0759 summary.                       (Jul 24, 1994 - Jul 30, 1994)

Table 1.0759.a   GPS week: 0759   MJD: 49557.0-49563.0

         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 |  .01  .02 -.01  -.15  -.11   .28  -.1   .12   .11 |   -1.0    1.1   75.3
    |  .01  .01  .01   .18   .21   .11   .1             |    5.9   12.1
emr |  .01  .01 -.02  -.42  -.06  -.08   .1   .24   .15 | -238.6  -21.6    1.4
    |  .01  .01  .00   .20   .31   .16   .1             |  458.7   13.4
esa |  .00  .01 -.01  -.22  -.13  -.19  -.1   .18   .16 |     .2    1.0   25.3
    |  .01  .01  .02   .19   .31   .28   .2             |    9.0   13.4
gfz | -.04  .01 -.02  -.36   .16  -.31  -.2   .11   .11 | -285.7  -25.1    8.9
    |  .01  .01  .01   .20   .18   .12   .1             |  452.8   23.6
jpl |  .00 -.02  .01  -.34  -.43  -.05   .0   .10   .10 |  379.2  -19.7    1.7
    |  .01  .01  .01   .12   .24   .06   .1             | 1801.1   25.7
ngs |  .02  .00 -.04  -.62   .23   .61   .6148.54   .24 |   -1.0     .8   75.3
    |  .01  .01  .02   .27   .32   .28   .3             |    5.9   11.9
sio |  .00 -.02  .15  -.51  -.19   .75  -.2   .23   .21 |     .0     .0     .0
    |  .01  .01  .05   .39   .27   .26   .2             |     .0     .0

Table 1.0759.b   GPS week : 0759   MJD: 49557.0-49563.0

         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  |   5   4   4   6   6   3   4 |
   2E |   8   7   8   6   6   6   7 |
   4  |   6   7   6   6   6   5   6 |
   5E |   6   5   6   8   6   5   5 |
   6  |   8   6   5   4   5   3   5 |
   7  |   6   7   5   6   5   5   4 |
   9  |   4   5   5   5   4   5   4 |
  12  |   3   4   4   4   4   3   6 | See REMARKS #6.
  14  |   5   5   4   6   4   5   6 |
  15  |   5   7   4   4   5   4   4 |
  16  |   7   5   5   5   4   4   8 |
  17  |   6   4   6   5   4   4   5 |
  18  |   4   5   6   4   3   3   3 |
  19  |   5   6   4   5   3   4   4 |
  20E |   7   6   6   6   6   6   6 |
  21  |   7   5   4  28   6   5   7 | Lack of data on day 3. See REMARKS #6.
  22E |   7   7   6   7   5   5   6 |
  23  |   6   5   5   5   5   5   4 |
  24  |   6   6   5   6   7   9   6 |
  25  |   7   7   4   5   4   4   4 |
  26  |   5   7   4   4   4   3   6 |
  27  |   5   4   5   5   4   4   3 |
  28  |   4   4   4   5   4   3   4 |
  29  |   5   5   4   4   3   3   5 |
  31  |   4   5   4   4   3   3   4 |

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

Table 2.0759.0   GPS week: 0759   Day: 0   MJD: 49557.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .02  .01 -.02  -.02  -.17   .17  -.2   .13   .11 |     .5    1.1   75.7
emr |  .01  .02 -.02  -.78   .25  -.14   .1   .11   .11 | -535.7  -23.7     .8
esa |  .01  .00  .00   .10   .36  -.67  -.2   .19   .18 |    5.4   13.4    1.2
gfz | -.03  .01 -.01  -.70   .34  -.10   .1   .13   .12 | -531.9  -18.7   10.0
jpl |  .00 -.02  .01  -.34  -.24   .00  -.1   .13   .13 | -530.4  -24.6     .8
ngs |  .00  .01 -.03  -.94   .05   .51   .6   .24   .23 |     .2     .6   75.5
sio |  .01 -.04  .10 -1.16   .17   .93  -.2   .23   .20 |     .0     .0     .0

Table 2.0759.1   GPS week: 0759   Day: 1   MJD: 49558.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .02 -.02  -.07   .12   .26  -.1   .13   .12 |    4.1  -11.0   75.3
emr |  .03  .00 -.01  -.44   .32  -.07   .1   .10   .10 | -555.5  -42.2    1.3
esa |  .00  .00 -.04  -.27   .17  -.12  -.1   .18   .17 |  -10.3    1.6    1.3
gfz | -.05  .02 -.03  -.44   .41  -.32  -.3   .14   .14 | -551.5  -35.2    8.7
jpl |  .01 -.01  .02  -.38  -.18  -.09  -.1   .11   .11 | -547.1  -47.7     .7
ngs |  .03  .00 -.07  -.49   .38   .95   .8   .30   .28 |    4.1  -11.0   75.2
sio | -.01 -.02  .21  -.73   .17   .83  -.3   .23   .23 |     .0     .0     .0

Table 2.0759.2   GPS week: 0759   Day: 2   MJD: 49559.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .02  .02 -.02  -.12   .19   .16   .0   .11   .11 |   -2.9    7.9   76.0
emr |  .01  .00 -.01  -.52  -.01   .05   .1   .11   .11 | -594.6  -20.8    2.1
esa |  .00  .02 -.03  -.37  -.08  -.21  -.2   .16   .15 |    7.7   12.7   17.3
gfz | -.04  .01 -.01  -.48   .30  -.36  -.2   .09   .09 | -589.9  -11.6    7.9
jpl |  .00 -.02  .02  -.48  -.13  -.03   .0   .08   .09 | -589.9  -20.7    2.6
ngs |  .02 -.01 -.07  -.54   .46   .45   .8   .29   .27 |   -3.0    9.0   76.0
sio | -.02 -.03  .17  -.26  -.23  1.16  -.2   .25   .23 |     .0     .0     .0

Table 2.0759.3   GPS week: 0759   Day: 3   MJD: 49560.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .03  .00  -.42  -.14   .33  -.2   .15   .14 |   -2.5    8.9   75.6
emr |  .02  .00 -.01  -.33  -.46   .07   .2   .58   .30 |  717.1   -2.2    1.2
esa | -.01  .01 -.01  -.31  -.39  -.19  -.2   .21   .17 |    8.8   -4.4   14.3
gfz | -.02  .02 -.02  -.39   .02  -.50  -.3   .11   .10 |  711.1   18.6   10.1
jpl |  .00 -.02  .01  -.50  -.67   .00  -.2   .13   .10 |  717.2   -1.9    1.2
ngs |  .02 -.02 -.06  -.73  -.17   .16   .8393.00   .21 |   -2.5    9.1   75.6
sio | -.01 -.02  .13  -.62  -.40   .71   .1   .21   .19 |     .0     .0     .0

Table 2.0759.4   GPS week: 0759   Day: 4   MJD: 49561.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .02 -.03   .00  -.09   .50   .1   .12   .10 |   -5.3    5.8   74.3
emr |  .01  .00 -.02  -.41  -.33  -.39   .1   .12   .12 | -159.2   -7.4    1.2
esa |  .00  .01 -.01  -.07  -.42   .30   .2   .16   .14 |    7.1   12.1    9.0
gfz | -.03  .01 -.01  -.18  -.04  -.29  -.1   .10   .09 | -319.4  -36.0    5.1
jpl | -.01 -.02  .01  -.22  -.68  -.15   .0   .08   .08 | 4331.6   27.7    1.2
ngs |  .03  .00 -.04  -.98  -.14   .74   .6   .25   .21 |   -4.9    5.0   74.2
sio |  .01 -.02  .16  -.37  -.34   .68  -.2   .21   .19 |     .0     .0     .0

Table 2.0759.5   GPS week: 0759   Day: 5   MJD: 49562.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .02  .02 -.01  -.01  -.41   .30  -.1   .09   .08 |    8.4  -19.5   74.5
emr | -.01  .01 -.02  -.37  -.32   .00  -.1   .12   .10 | -159.1  -25.6    1.2
esa |  .01  .01 -.01  -.16  -.10  -.21   .0   .17   .16 |   -5.8   -5.0    1.8
gfz | -.03  .00 -.02  -.14   .02  -.36  -.1   .10   .10 | -337.7  -53.4    3.5
jpl |  .01 -.02  .00  -.29  -.61   .00   .0   .08   .08 | -346.2  -41.8    1.1
ngs |  .04  .00 -.03  -.21   .65   .54   .8   .20   .21 |    8.4  -19.6   74.5
sio | -.01 -.02  .17   .07  -.54   .58  -.4   .21   .18 |     .0     .0     .0

Table 2.0759.6   GPS week: 0759   Day: 6   MJD: 49563.0

CENT|   DX   DY   DZ    RX    RY    RZ  SCL   RMS  WRMS |   TOFT  TDRFT    RMS
----|---------------------------------------------------|---------------------
cod |  .01  .01 -.01  -.38  -.25   .27  -.1   .11   .10 |   -9.3   14.2   76.0
emr |  .01  .00 -.02  -.11   .13  -.11   .2   .10   .10 | -383.5  -29.0    1.9
esa |  .01  .01  .02  -.45  -.43  -.22   .1   .19   .18 |  -11.7  -23.4   62.3
gfz | -.04  .01 -.02  -.17   .06  -.26  -.3   .12   .11 | -380.7  -39.1   13.2
jpl |  .01 -.01  .03  -.18  -.54  -.07   .1   .10   .10 | -381.0  -28.8    2.6
ngs |  .04  .02 -.01  -.48   .38   .93   .1   .25   .25 |   -9.6   12.6   75.9
sio | -.01 -.03  .08  -.52  -.17   .35   .0   .27   .26 |     .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 3.0759.0   GPS week: 0759   Day: 0   MJD: 49557.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   8  11  11   5   9  30  19    5 |    8   7   7   9   9  31  18    6
   2E |  25  10  30  17  18  30  20    8 |   18  22  35  22  24  28  24   19
   4  |   9  14  29  21  10  13  16    6 |   14  13  13  19  16  17  20   11
   5E |  15  13  12  15   9  18  25    6 |   15  17  18  22  18  28  19   16
   6  |  15   9  21  16  33  16  21    8 |   12  11  23  15  23  20  16   11
   7  |  14  16  11  11  12  18  26    6 |   10  12  21  13  15  12  24    9
   9  |   5  10  12   9   7  13  14    4 |   11  12  12  13  12  17  12    9
  12  |   6   5   5   9   7  17  15    3 |   11  10  12  12  14  14  13    9
  14  |   8  12  12  11   8  16  33    5 |   13  17  17  13  14  23  20   12
  15  |  13   8  17  12  12  19  22    5 |   12  14  13  12  13  14  22   11
  16  |  14   8  23  12  18  43  14    7 |   14  10  18  19  12  31  17   10
  17  |   8   5  20  11  12  39  21    6 |   20  14  21  15  18  15  12   14
  18  |   4  10  11   8   7  18  24    4 |    8  10   8  12  10  21  20    7
  19  |   7   7  13   6   9  38  11    5 |   12  14  21  16  12  30  15   11
  20E |  17  12  16  23  11  24  12    7 |   23  32  32  37  28  41  33   28
  21  |  14  11  35  16   7  28  28    7 |   13  34  25  24  18  15  23   13
  22E |  21  10  22  10   8  22  30    7 |   25  18  22  17  15  25  24   15
  23  |   5  14  28  14   8  17  16    6 |   22  23  39  22  23  21  23   23
  24  |   8   8  13  19   8  22  35    6 |   12  17  12  15  16  24  27   11
  25  |  14  16  14  15  24  14  18    7 |    9  17  10  11  24  11  18   10
  26  |  11  11  16  10  13  11  27    5 |    7   8  16  14   9  14  14    6
  27  |  10   5  15   8  10  34  10    5 |    9  12  18  13  11  36  18   11
  28  |  14   8   9   6   7  17  17    4 |   12   9  10  11  11  18  12    8
  29  |   3   8  20   6   8  19  30    5 |    6   8  13  12  10  16  24    6
  31  |  10   7   7   6   6  18  24    4 |   11  12  10  12   9  18  19    8
------|----------------------------------|----------------------------------
 RMS  |  12  10  19  13  13  24  22      |   13  16  19  17  16  22  20   12
 WRMS |  11  10  17  12  13  22  19      |

Table 3.0759.1   GPS week: 0759   Day: 1   MJD: 49558.0

               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   7  10   5  11  21  22    4 |    7   8  10   8  12  19  15    6
   2E |  17   8  18  13  12  35  28    7 |   11  25  29  20  21  29  33   18
   4  |  15  16  21  18  13  39  22    7 |   13  13  12  20  17  31  20   10
   5E |  10   9  16  13   8  31  20    5 |   13  20  26  24  20  33  21   17
   6  |   8  10  19  16  17  24  22    6 |   11  13  16  14  18  19  15   11
   7  |   9  14  29  18  12  36  31    7 |   10  12  11  13  13  36  28   10
   9  |  12   7  10   9  12  23  20    5 |   13  10  10  13  10  16  16    9
  12  |   8   4  14   8   8  28  20    4 |   10  11  14  12  13  27  14    9
  14  |   9   7  15  11  15  19  28    5 |   15  15  13  17  16  24  21   13
  15  |  21  13  19  14  10  33  28    7 |   13  17  16  13  12  26  25   11
  16  |  11   7  19  10  10  24  21    5 |   15  12  15  16  14  28  24   11
  17  |   6  10   8   7   8  27  21    4 |   13  14  18  12  17  27  18   14
  18  |   6  11  14   8   9  39  20    5 |    9  16  12  15   8  32  16    9
  19  |   9   5  12   5   7  54  19    6 |   12  12  17  14   9  41  17   11
  20E |  15   8  15  24  13  24  19    6 |   17  27  29  34  27  34  32   25
  21  |  10   7  11  15   9  37  14    5 |   14  38  18  21  21  22  19   12
  22E |  22  11  23  13   8  24  23    7 |   27  17  19  16  15  24  20   15
  23  |   9   7  21   9  12  17  19    5 |   14  21  21  23  21  26  18   17
  24  |  18   7  22  13   9  19  32    6 |   14  13  15  14  16  19  29   11
  25  |  14  15  25  23  13  20  27    7 |   10  12  19  13  17  23  20    9
  26  |  19   6  22  17   9  31  25    7 |   10  10  12  12   6  29  15    7
  27  |   4   5  12   6  10  29  22    4 |    8  11  15  13  11  30  15    9
  28  |  14   5  11   7  11  24  17    4 |   12   8  13  11  13  19  13    9
  29  |   9   5  14  22   7  23  24    5 |    6   8  14  21   9  25  19    9
  31  |  12  10  10   9  14  27  23    5 |   11  12   8  13  12  31  22    9
------|----------------------------------|----------------------------------
 RMS  |  13   9  17  14  11  29  23      |   12  16  16  16  15  27  20   12
 WRMS |  11   9  16  13  11  28  22      |

Table 3.0759.2   GPS week: 0759   Day: 2   MJD: 49559.0

               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  11  12   6   8  15  23    4 |    7  10  13   9  14  18  14    7
   2E |  19  15  16   9  15  65  24    8 |   15  18  22  18  20  52  24   15
   4  |  15  11  12  17  11  30  13    6 |   14  13  13  16  20  26  18   12
   5E |   6  13  22  13   8  33  25    6 |   14  20  19  28  20  33  22   19
   6  |   4  19   6   7   9  41  19    5 |   11  13  13  15  13  30  16   10
   7  |   7  11  24  10   8  16  23    5 |   11  10  11  13  18  13  24   10
   9  |   9   7  17   5  12  24  22    5 |   12   8  10  17  10  20  15   10
  12  |   8   6  12   5   7  15  26    4 |   10  11  13  14  10  14  17   10
  14  |   8   8  10   7   7  14  29    4 |   15  15  13  16  13  20  30   13
  15  |   7   7  16   6   5  12  30    4 |   12  13  22  15  11  15  27   12
  16  |  14   9  14  11   8  35  17    5 |   15  12  17  21  14  29  21   11
  17  |   9  11  10   7   5  55  18    6 |   12  17  15  14  14  39  19   13
  18  |   7   9  13  12   6  20  44    6 |    9  11   8  18  11  16  42    9
  19  |   8   8  12   6   6  29  18    4 |    9  14  13  13  10  30  23   10
  20E |  15  11  20  13   6  31  24    6 |   16  24  30  32  26  37  29   25
  21  |  11  15  15   8   4  15  17    4 |   33  87  39  31  23  28  22   26
  22E |  16  11  27   9   8  25  20    6 |   26  18  17  17  18  24  19   16
  23  |  20  11  16   7   6  20  18    5 |   14  33  33  31  30  24  26   26
  24  |   8  10  13   8   6  17  37    5 |   14  15  14  15  17  16  34   14
  25  |  11  12   8   7   6  24  22    4 |   12  10  14  10  13  27  13    8
  26  |   9   5  14   7   5  23  19    4 |    9   7  10  16   7  19  21    5
  27  |  13   7  19   5   8  32  20    5 |    9  14  17  14  12  30  16   10
  28  |   7   8  15   5   6  21  18    4 |   10  10  11   9   9  17  14    7
  29  |   6   8  16   5   8  19  28    4 |    7  10   9  12   9  19  27    6
  31  |  10   8  13  11  10  17  23    4 |   11  12  11  14   8  19  18    8
------|----------------------------------|----------------------------------
 RMS  |  11  10  16   9   8  29  24      |   14  22  17  18  15  26  23   13
 WRMS |  10  10  14   8   8  26  23      |

Table 3.0759.3   GPS week: 0759   Day: 3   MJD: 49560.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |  12  10  28  11   8  17  25    6 |   10  11  18  11  15  20  14    9
   2E |  22  10  12  14   7  28  25    6 |   18  20  25  22  19  36  26   17
   4  |  15  11  17  11  15  21  17    6 |   13  12  15  15  21  20  21   12
   5E |   9  12  40  18  11  23  27    8 |   15  16  26  29  17  28  20   16
   6  |   8  11   9  11   9  14  17    4 |   13  11  19  18  14  16  14   10
   7  |   7  14  22  12   9  23  26    6 |   11  12  15  13  14  14  24    9
   9  |  15  10  14   9  14  20  17    5 |   13  10  13  18  12  22  18   11
  12  |  14   8  11   8  11  16  15    4 |   10  15  14  15  14  16  17   10
  14  |  11   6  20   9  14  28  32    6 |   15  14  17  15  15  31  27   13
  15  |  12   6   5   9   8  22  22    4 |   14  13  14  14  11  21  25   11
  16  |  19  11  12   9   7  25   9    5 |   19  14  18  18  15  22  15   12
  17  |  13   6  25  10   6  13  14    5 |   14  16  20  15  16  20  17   12
  18  |   7   9   8   8   7  21  20    4 |    8   9  10  16  12  17  21    8
  19  |  13   8  11   8   8  31  15    5 |   12  16  15  13  10  36  18   12
  20E |  17  12  14  14  17  23  20    6 |   19  22  29  25  25  34  26   21
  21  |  27 284  51 ---  41 >>> ---   28 |   37 203  55 ---  27   0 ---   22
  22E |  23  12  16  11  13  28  21    7 |   27  17  24  16  21  24  23   17
  23  |  13   5  33   7   8  19  13    5 |   20  19  19  23  21  26  23   18
  24  |  11   8  18  16   7  21  26    6 |   11  16  17  15  18  18  25   11
  25  |  11  10  18   8   8  15  20    5 |   11  13  16  12  13  20  11   11
  26  |  15   6   9   7   7  17  17    4 |    7   6  12  12  10  13  17    8
  27  |   7   9  10  10   7  33  20    5 |    9  14  12  12  13  35  14   11
  28  |  21   7  19   7   5  15  23    5 |   16   8  11   9  11  20  15    8
  29  |   4   5  16   6   6  22  21    4 |    7   8  12  12   9  18  19    7
  31  |  10   8   9  10   6  11  14    4 |   12  12  11  11  10  15  15    8
------|----------------------------------|----------------------------------
 RMS  |  15  57  21  10  12 >>>  21      |   15  42  20  16  16  23  19   12
 WRMS |  13  30  16  10  10  20  19      |

Table 3.0759.4   GPS week: 0759   Day: 4   MJD: 49561.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |  12  13  29  12   6  20  15    6 |    8  14   9  12  12  22  12    9
   2E |  16  14  14   9  10  45  16    6 |   13  21  30  19  20  33  22   18
   4  |  18  19  13  16  11  19  26    6 |   14  12  10  19  17  24  23   10
   5E |   9   9  16  11   7  40  21    6 |   10  14  15  22  16  42  17   13
   6  |   7   5  21  12   6  26  19    5 |   11  11  22  15  12  30  12   10
   7  |   5   9  12   9   8  39  23    5 |   11  11  15  13  10  47  21   11
   9  |   8   9   8   8   7  22  14    4 |   12  12  10  17  11  14  14   11
  12  |   5   6   9   5   4  40  16    4 |   11   8  12  12  11  43  12    9
  14  |   9   9   8   8   9  18  26    4 |   14  13  16  16  14  21  22   13
  15  |  10  17   9   8   7  25  18    5 |   12  17  16  12  12  16  21    9
  16  |  11  17  10   5  11  19  11    4 |   13  15  13  16  16  16  15   12
  17  |   9  10  19   6   4  15  18    4 |   13  18  17  15  16  19  18   13
  18  |   8   8   7   6   7  11  20    3 |    9  11  12  13  10  12  16    9
  19  |   9   7  11   6   5  10  20    3 |    9  13  17  17   9  13  17   11
  20E |  17  15  20  13  11  30  18    6 |   14  22  29  31  25  34  26   21
  21  |  22  17  12   9   6  24  16    6 |   31  79  23  17  18  24  15   14
  22E |  15  10  16  11   6  18  23    5 |   18  18  16  16  16  25  26   14
  23  |  12   6  29   6   8  19  13    5 |   16  19  20  21  20  18  22   18
  24  |  10  23  13  14   8  18  45    7 |   11  19  11  14  17  15  35   10
  25  |  11  13  16   7   5  21  16    4 |   13  10  12  12  12  23  10    9
  26  |  10   9  15   6   5  20  26    4 |    8   9  16  12   8  17  17    7
  27  |   9  10   9   5   8  19  19    4 |   10  12  11  12   9  23  17   10
  28  |  12  10  19   8   5  18  13    4 |   10   8  10  10  11  13  11    8
  29  |   4   4   7   4   8  17  23    3 |    7   9  10  12  10  14  17    8
  31  |   5   9   6   8   9  17  16    3 |   11  12  12  11  13  15  16    9
------|----------------------------------|----------------------------------
 RMS  |  11  12  15   9   7  25  21      |   13  21  16  16  14  24  18   11
 WRMS |   9  11  13   9   8  21  19      |

Table 3.0759.5   GPS week: 0759   Day: 5   MJD: 49562.0

               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  11   7   5   6  14  19    3 |    7  11  17  14  10  12  20    7
   2E |  11   9  17   9  10  37  20    6 |   11  20  25  19  20  25  25   17
   4  |   9  10  16  15   9  14  20    5 |   11  11  11  17  14  17  18   10
   5E |   9   7  26   9   7  31  24    5 |    9  15  13  21  16  29  18   13
   6  |   6   7   9   9   5  10  15    3 |   11  10  13  14  10  14  13   10
   7  |  10  11  18   7   8  20  24    5 |   12  14  12  15  11  16  22   10
   9  |   6   5  13   8   6  35  17    5 |   11  12  11  18  11  36  15   13
  12  |   6   4  11   6   5   8  18    3 |    9  12  12  14  11  15  16   10
  14  |   9   9  19   8   8  20  29    5 |   13  14  19  17  13  24  26   13
  15  |   9   7  15   9   4  18  25    4 |   11  13  17  14  11  10  23   10
  16  |   7   5  18   7   9  24  11    4 |   14  16  14  17  18  20  22   13
  17  |   5   4  26   6   4  23  14    4 |   11  16  16  12  14  25  16   11
  18  |   6   5  11   5   6  14  22    3 |    8   9  12  13  12  15  16    9
  19  |   6   7   9   7   5  22  21    4 |   10  11  14  15   9  23  21   10
  20E |  17  14  15  17  11  17  23    6 |   12  25  30  34  25  32  28   23
  21  |  14  11  17  16  10  13  17    5 |   12  43  19  22  15  13  19   12
  22E |  15  14  28  10   6  15  17    5 |   24  24  16  17  20  27  13   18
  23  |   8   8  28   7   8  20  12    5 |   16  17  17  21  18  17  16   16
  24  |   9  40  16  23  10  18  34    9 |    8  51  12  15  16  11  36   15
  25  |   6  20  13   6   4  10  24    4 |   10  16  11  12  10  17  13    9
  26  |   4   7  10   7   6  18  15    3 |    7   6  10  17   8  15  23    6
  27  |   5   9   8   6   7  20  18    4 |    8  11  10  14  10  17  13    9
  28  |   8   5  17   5   6  11  20    3 |   12   9  12  11  11   9  15    8
  29  |   5   8   7   6   5  15  24    3 |    6  10  11  12   8  16  12    7
  31  |   9   4   8   7   8  16  14    3 |   11   8  12  11  11  10  11    9
------|----------------------------------|----------------------------------
 RMS  |   9  12  16  10   7  20  20      |   11  19  15  16  13  19  19   12
 WRMS |   7  10  16   9   7  20  18      |

Table 3.0759.6   GPS week: 0759   Day: 6   MJD: 49563.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz jpl ngs sio  IGS |  cod emr esa gfz jpl ngs sio  IGS
------|----------------------------------|----------------------------------
   1  |   7  14  18   7   7  13  20    4 |    8  11  10   9  10  12  18    9
   2E |  11  10  33  11  16  32  22    7 |   18  21  30  20  26  26  22   19
   4  |   9  13  15  21  15  15  16    6 |   12   9  13  17  17  17  15   10
   5E |   9  12  13   8   8  37  17    5 |   17  20  21  25  20  33  23   20
   6  |  15   8  17  18  10  11  17    5 |    9  11  18  19  10  18  16   10
   7  |   7   9  19   6   7  21  25    4 |   11  12  15  11  12  25  24   11
   9  |   5   8  14  13   6  22  24    4 |    9  11  11  12  12  28  12   11
  12  |   8  11  13   9   7  45  27    6 |   11  12  11  14  14  27  15   10
  14  |   9   9  13  11  11  41  24    6 |   16  14  18  15  14  20  28   14
  15  |   7   8  10  12   6  26  21    4 |   14  13  16  13  12  23  22   11
  16  |  11  10  21  14  14  39  58    8 |   15  14  12  18  16  28  42   12
  17  |   5   6  28   6   5  21  29    5 |   11  12  14  13  14  17  26   11
  18  |   6   6  12   9   5   7  26    3 |    7   9  13  12  10   9  16    9
  19  |   7   7  11   7  12  13  15    4 |    9  12  16  14  10  19  22   11
  20E |  15  14  14  16  11  32  15    6 |   15  24  23  27  25  40  27   21
  21  |  24  12  28  14  12  17  23    7 |   11  34  16  21  17  15  18   13
  22E |  16  11  26   7   7  28  33    6 |   23  16  17  15  17  24  23   15
  23  |  14   9  17   6   4  14  18    4 |   21  15  18  22  21  16  24   19
  24  |   9  13  26  15  16  12  34    6 |   10  15  15  12  19  17  29   10
  25  |   9  11  15   5   5  21  20    4 |    9  13  10  11  13  25  13   10
  26  |   7   9  25   9   8   9  53    6 |    7  12  15  13  12  10  32    9
  27  |   6   9   5   6   7  15  15    3 |    9  15  15  13  12  16  17   12
  28  |  11   4  10  12   6  15  20    4 |   10   9  14  14  13  15  20    9
  29  |   8   8  22   9   6  25  26    5 |    8   8  14  12   9  15  20    7
  31  |   9   9   9   7   8  24  17    4 |   10  11  11  11  13  17  16    9
------|----------------------------------|----------------------------------
 RMS  |  11  10  19  11   9  25  27      |   12  15  16  15  15  21  22   12
 WRMS |  10  10  18  11   9  25  25      |

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