Subject: [IGSREPORT-3667] Wk 0900 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Wed, 23 Apr 1997 17:33:09 PDT

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IGS Electronic Report    Wed Apr 23 17:33:09 PDT 1997      Message Number 3667
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0900 IGS Final Orbits

Final IGS Orbit Combination - Week 0900   (Apr 06, 1997 - Apr 12, 1997)

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

COMBINATION STRATEGY:

  Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

  Each centre satellite clock corrections are first transformed to a common 
reference. 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 ephemerides 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. The IGS combined orbits/clocks and
all centres providing both orbit and clock solutions are further evaluated
by an independent point positioning (navigation) program developed at NRCan.
This is primarily intended for testing clock solution precision as well as the 
orbit/clock consistency.

  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 inertial 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 and Springer, 1995, Combining the orbits of the IGS Analysis
   Centers, Bulletin Geodesique, 69, pp 200-222.

   Kouba, Mireault and Lahaye, 1995, 1994 IGS Orbit/Clock Combination and 
   Evaluation, Appendix I of the Analysis Coordinator Report, International GPS 
   Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

PRODUCTS GENERATED:

  The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite. Note that each file contains all the
satellites that appear in any of the centre ephemeris files. If a satellite or
centre was excluded from combination, a note in the REMARKS section of this
report will identify the exclusion and the reason.

  The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.
These values are supplemented with the current IERS Bulletin A UT1-UTC values. 

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

 IGS09000-6.SP3  IGS GPS ephemeris files for days 0-6, week 0900 in SP3 format.
 IGS09007.ERP    Earth rotation parameters (ERP) associated with ephemerides.
 IGS09007.SUM    Complete report.

REMARKS on IGS Final Orbit Combination:

1. The centres used in the clock combination are COD, EMR, ESA, GFZ and JPL. The
   other centres are excluded because they either provide broadcast clocks (NGS)
   or clock corrections are not provided (SIO).  The clock information not
   used is still compared to combination for completeness.  
   The value of 999999.999999 microseconds, according to the sp3 format 
   convention, is used to signify that no clock solution is available and 
   therefore must not be used.

2. Only the GFZ "exact" clock corrections (one epoch out of two) are included
   in the combination and RMS computation (no "interpolation" values).

3. Rapid ("IGR") orbits/clocks are included in the combination for statistics
   only.

4. The following centre clock solutions, which provide broadcast clock
   corrections, were excluded from the combination but kept in the combination
   statistics:
            -> Centre: NGS 

5. Centre clock weights were determined using the following non-SA satellites:

                  Day | PRN list
                  ----+---------
                  0-6 |  15 

6. The following clock solutions were excluded from the combination because
   they were biasing the combined clock solutions (large clock shifts/outliers)
   but were kept for the RMS computation. Note that starting with week 860, 
   Centres with clock RMS higher than 2 ns are excluded from the clock 
   combination if they bias the combined clock solution. This will make IGS 
   clock precision more comparable to the best ACs.

                  Day | Centre | PRN list
                  ----+--------+---------------
                  1,3 |  ESA   |  ALL

7. The following table lists all maneuvered satellites for this week.
   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. These satellites were
   excluded from the long arc evaluation on these days due to unrealistic RMS
   caused by the maneuver.

               PRN | Day |    Date    | Ref. NANU
               ----+-----+------------+-----------
                06 |  1  | 1997_04_07 | 041-97097

8. The following 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.

                  Day | Centre | PRN list
                  ----+--------+---------------
                   2  |  ESA   |  14
                   4  |  ESA   |  18
                  0-1 |  EMR   |  ALL (High Rotations - see Table 2)
                  3-4 |  EMR   |  ALL (High Rotations - see Table 2)

9. State vector resets were modeled for the following satellites to
   alleviate the effects of modeling problems, experienced by all centres,
   in the Long Arc (LA) process:

          Day (Date) |   TIME   |  PRN  | Centres  | Reason
         ------------+----------+-------+----------+-------------------
          1 (Apr 07) | 00:00:00 | 07,24 |   All    | Modeling problems
          2 (Apr 08) | 00:00:00 |  04   |   All    | Modeling problems
          2 (Apr 08) | 00:00:00 |  06   |   All    | Maneuver (see Remark 7)
          2 (Apr 08) | 00:00:00 | 19,22 |   All    | Modeling problems
          3 (Apr 09) | 00:00:00 |  14   |   All    | Modeling problems (a)
          4 (Apr 10) | 00:00:00 |  16   |   All    | Modeling problems
          4 (Apr 10) | 00:00:00 |  18   |   All    | Modeling problems (b)

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

  (b) Due to unrealistic long arc RMS, PRN18 was excluded from the long arc 
      evaluation on day 4 for ACs that submitted solutions for this satellite;

10.Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
   Final IGS solutions. The LOD combination uses AC LOD and AC orbit weights
   (for the time being) to determine combined IGS LOD values together with 
   integrated UT1-UTC values starting from the most current (and non predicted)
   UT1-UTC value of Bulletin A.

   AC LOD biases with respect to Bulletin A are estimated using Bulletin A
   most recent 3 weeks (21 days), i.e. up to the most current (and non
   predicted) UT1-UTC value of Bulletin A.  AC LOD biases are removed and the
   new AC bias-free LODs are used to compute a weighted IGS LOD which in turn
   is used to integrate UT1-UTC.

ORBIT COMBINATION AND EVALUATION STATISTICS:

  Most combination statistics are with respect to the combined orbits and
consist of five 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 1.0900.a). It also displays the computed satellite position sigmas for
the combined orbits (table 1.0900.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 2.0900.0-6). The third 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 3.0900.0-6). 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. The fourth part, 
Table 4, is a weekly summary of the daily precise navigation summaries for
centres providing both orbit and clock solutions.  It contains weekly station
RMS w.r.t. the initial coordinates for the Latitude, Longitude and Height 
components for up to three IGS stations (table 4.0900). The fifth and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.0900.0-6).

  In tables 1-3, 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 0900 summary.                       (Apr 06, 1997 - Apr 12, 1997)

Table 1.0900.a   GPS week: 0900   MJD: 50544.0-50550.0

         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  81 | .00  .01 -.01  -.26   .11   .47  -.2  .05  .04 |    7.3   -2.2     .4
        | .00  .00  .00   .13   .10   .10   .1           |    7.8   10.2
emr  28 | .01 -.02 -.02   .42  -.11  1.11   .0  .13  .12 |  184.4   52.5     .4
        | .01  .01  .01   .12   .14   .44   .2           |  175.0   10.1
esa  52 | .00  .00  .00   .00  -.12   .22   .2  .13  .06 |   15.3     .9    2.1
        | .00  .00  .00   .17   .16   .16   .1           |   11.2   20.2
gfz  48 | .00  .00  .00   .32   .04  -.43   .0  .05  .05 |  185.5   53.7     .4
        | .00  .00  .00   .09   .10   .22   .0           |  174.9   10.1
igr  n/a| .01 -.01 -.01  -.05   .06   .00   .0  .07  .05 |    -.3    1.1    1.6
        | .00  .01  .00   .12   .13   .35   .1           |    2.3    3.0
jpl  37 | .02  .00  .02   .01  -.18   .21   .3  .08  .09 |  167.1   28.8     .4
        | .01  .01  .01   .33   .13   .24   .1           |  106.7   29.9
ngs  51 | .01 -.05  .00  -.19   .33   .16   .0  .17  .15 |    8.4   -6.6   79.6
        | .01  .01  .02   .35   .22   .16   .3           |    4.8    6.3
sio  116| .00  .00  .00  -.07  -.01  -.65  -.1  .07  .06 |     .0     .0     .0
        | .01  .00  .00   .05   .04   .17   .1           |     .0     .0

Table 1.0900.b   GPS week : 0900   MJD: 50544.0-50550.0

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: cm.

              Day of GPS week
 PRN  |   0   1   2   3   4   5   6 |  Remarks
------|-----------------------------|------------------------------------------
   1  |   3   3   3   3   3   3   3 |
   2  |   3   3   3   3   3   2   3 |
   3  |   3   3   3   3   3   3   3 |
   4  |   3   4   2   3   3   3   2 |
   5  |   2   4   3   3   3   3   3 |
   6  |   3   0   3   3   3   3   3 | Maneuver on day 1.
   7  |   2   8   3   3   3   2   3 |
   9E |   3   3   3   3   3   3   4 |
  10  |   3   3   3   3   3   3   3 |
  14  |   2   3  12   3   4   2   3 | Modeling problems on day 2.
  15  |   3   4   3   3   4   4   4 |
  16  |   3   3   2   4   7   3   2 |
  17  |   3   3   3   2   3   3   3 |
  18  |   3   2   3   3  15   3   4 | Modeling problems on day 4.
  19E |   3   4   3   4   5   3   4 |
  21  |   3   3   3   3   3   3   2 |
  22  |   2   6   2   3   3   2   2 |
  23  |   3   3   3   3   2   3   2 |
  24  |   3   7   3   4   4   3   3 |
  25E |   2   3   3   2   3   3   4 |
  26  |   3   3   2   3   2   3   3 |
  27E |   3   3   3   3   3   4   3 |
  29  |   2   3   3   3   3   3   2 |
  30  |   3   5   2   3   3   2   2 |
  31  |   3   2   3   3   3   3   3 |

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

Table 2.0900.0   GPS week: 0900   Day: 0   MJD: 50544.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .01 -.01  -.14   .09   .52  -.3  .05  .04 |    4.5   13.2     .3
emr  29 | .01 -.03 -.01   .41  -.13  1.42  -.3  .11  .11 |  513.6   61.1     .3
esa  53 | .00  .00  .00   .30  -.08   .24   .1  .06  .06 |     .0     .0     .0
gfz  47 | .01  .00  .01   .34   .13  -.39  -.1  .05  .05 |  514.6   62.2     .3
igr  n/a| .01 -.02  .00  -.10   .11   .18   .1  .06  .05 |    1.6     .1     .3
jpl  37 | .00  .01  .01  -.54  -.33   .19   .3  .05  .05 |  211.6    4.8     .2
ngs  53 | .02 -.06  .00   .06   .50   .22  -.1  .15  .15 |   11.8    2.0   80.2
sio  115| .00  .00  .01  -.04   .01  -.51   .1  .06  .05 |     .0     .0     .0

Table 2.0900.1   GPS week: 0900   Day: 1   MJD: 50545.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .01 -.01  -.27   .26   .58  -.1  .08  .04 |   17.1   -7.8     .4
emr  28 | .01 -.02 -.04   .41  -.15  1.13   .0  .14  .14 |   -8.1   47.0     .3
esa  52 |-.01  .00  .00  -.10  -.10   .29   .2  .08  .08 |   18.8  -10.5    2.8
gfz  49 | .00 -.01  .00   .39   .07  -.21  -.1  .06  .06 |   -6.9   48.2     .3
igr  n/a| .01  .00 -.02  -.08   .01   .21   .1  .06  .06 |    1.1    -.6    1.0
jpl  37 | .01  .01  .01  -.17  -.38   .06   .4  .08  .09 |  219.6   -8.4     .3
ngs  53 | .00 -.05 -.02   .22   .06   .26  -.5  .19  .18 |   12.6  -11.9   79.7
sio  120| .00  .00  .00  -.01  -.01  -.78  -.1  .09  .07 |     .0     .0     .0

Table 2.0900.2   GPS week: 0900   Day: 2   MJD: 50546.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .01 -.01  -.23   .10   .46  -.3  .05  .04 |   10.1    3.6     .5
emr  27 | .01 -.03 -.01   .54  -.09   .89   .0  .13  .11 |   42.0   56.0     .5
esa  55 | .00  .01 -.01  -.19  -.06  -.11   .1  .18  .06 |   12.0   35.2    2.0
gfz  47 | .00  .00  .00   .34   .10  -.23  -.1  .05  .05 |   42.9   57.4     .5
igr  n/a| .01 -.01 -.01   .12  -.01   .11   .1  .09  .06 |     .0    1.2     .8
jpl  37 | .02  .00  .02   .02  -.21  -.06   .1  .10  .10 |  212.5    -.4     .5
ngs  51 | .02 -.04  .02  -.82   .11  -.14   .5  .17  .15 |   10.9   -5.7   79.7
sio  116|-.01  .01  .00  -.02  -.05  -.45   .0  .06  .06 |     .0     .0     .0

Table 2.0900.3   GPS week: 0900   Day: 3   MJD: 50547.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .01 -.01  -.21   .05   .58  -.3  .04  .05 |   17.4  -15.1     .3
emr  28 | .02 -.03 -.02   .62  -.01  1.87   .2  .15  .15 |  104.9   39.6     .3
esa  51 | .00  .00 -.01   .16  -.10   .32   .3  .06  .06 |   30.8   17.6    3.3
gfz  48 | .01  .00  .00   .26   .12  -.28   .0  .05  .05 |  106.2   40.6     .3
igr  n/a| .01 -.01 -.01   .06   .01   .26   .1  .06  .06 |   -5.3    7.7    4.0
jpl  37 | .03  .01  .02  -.09  -.14   .32   .3  .09  .09 |   -4.1   39.1     .3
ngs  50 | .01 -.03  .01  -.22   .34   .17  -.3  .15  .15 |   13.2  -17.5   78.0
sio  116| .00  .00  .00  -.07  -.09  -.78   .1  .06  .05 |     .0     .0     .0

Table 2.0900.4   GPS week: 0900   Day: 4   MJD: 50548.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  82 | .00  .01 -.02  -.14   .22   .48  -.2  .05  .04 |     .1   -6.0     .4
emr  30 | .02 -.02  .00   .32  -.39  1.15   .1  .16  .13 |  148.1   55.8     .4
esa  52 |-.01  .00 -.01  -.07  -.46   .21   .1  .24  .07 |   14.2   -9.1    1.7
gfz  46 | .00  .00  .01   .17   .01  -.74   .0  .06  .06 |  149.4   56.9     .4
igr  n/a| .01 -.01 -.01   .04  -.11   .16   .0  .11  .06 |     .5    -.4     .4
jpl  37 | .02 -.01  .02   .28  -.10   .67   .2  .09  .09 |   37.9   56.3     .4
ngs  47 | .02 -.05 -.01   .11   .68   .33   .1  .22  .15 |    1.4   -4.5   79.1
sio  114| .00  .00  .00  -.06   .03  -.67  -.1  .08  .07 |     .0     .0     .0

Table 2.0900.5   GPS week: 0900   Day: 5   MJD: 50549.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  81 | .00  .01 -.01  -.32   .10   .31  -.2  .04  .04 |   -2.2    6.6     .4
emr  28 | .00 -.01 -.02   .28   .01   .51   .1  .11  .11 |  206.3   66.5     .4
esa  49 | .00  .00  .00  -.07  -.12   .22   .3  .06  .06 |   27.0    -.4    1.7
gfz  49 |-.01  .00  .00   .44  -.10  -.49   .0  .05  .05 |  207.4   67.7     .4
igr  n/a| .00  .00 -.01  -.20   .06  -.71   .0  .04  .05 |     .6    -.5     .5
jpl  37 | .02  .01  .03   .08  -.11   .06   .3  .09  .09 |  207.3   67.5     .4
ngs  49 | .00 -.06 -.01  -.36   .42   .07   .0  .15  .14 |    4.1   -5.4   79.5
sio  113|-.01  .01  .00  -.10   .03  -.47  -.2  .07  .07 |     .0     .0     .0

Table 2.0900.6   GPS week: 0900   Day: 6   MJD: 50550.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  79 | .00  .01 -.02  -.52  -.04   .37  -.2  .04  .05 |    3.8   -9.9     .5
emr  28 | .01 -.02 -.01   .35  -.01   .81  -.2  .11  .11 |  283.7   41.7     .5
esa  54 | .00  .00  .00  -.02   .08   .38   .1  .05  .05 |    4.5  -26.7    1.2
gfz  50 | .00 -.01  .01   .33  -.09  -.70  -.1  .05  .05 |  284.9   42.8     .5
igr  n/a| .00 -.01 -.01  -.14   .31  -.19  -.1  .05  .04 |    -.3     .0     .5
jpl  36 | .01  .01  .03   .48  -.03   .23   .3  .08  .08 |  284.8   42.7     .5
ngs  52 | .01 -.05  .00  -.32   .22   .22   .2  .14  .14 |    4.8   -3.3   81.3
sio  117|-.01  .01  .00  -.16  -.02  -.87  -.1  .09  .08 |     .0     .0     .0

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

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

         Units: cm.

Table 3.0900.0   GPS week: 0900   Day: 0   MJD: 50544.0

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

Table 3.0900.1   GPS week: 0900   Day: 1   MJD: 50545.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   6  11   5   5   3  11  11   5    3 |    4  12   9   7   5  11  11   6    5
   2  |   5  16   7   5   5   5   9   7    3 |    4   6   8   5   6   5   9   8    4
   3  |   4   8   7   5   5  10  15   6    3 |    3   8   5   5   5   9  13   6    4
   4  |  11  19   7   4   4   7  19   8    4 |   11  22  17  19  18  18  27  14   16
   5  |   7   9   8   6   4  10  12  12    4 |   19  20  25  18  19  19  25  13   17
   6  | --- ---   2 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
   7  |  23  18  13  15  10  13  27  17    8 |   17  29  28  26  23  27  25  17   20
   9E |   4  13   6   6   4   5  22   7    3 |   11  14  16  11  11  12  17  10   10
  10  |   4  13   9   7   7   4  15   5    3 |    6   8   8   7   8   6  14   8    5
  14  |   3  13   8   3   7  10  10   9    3 |    1   8   4   2   7   6  10   5    2
  15  |   4  19   6   4   5   8  26   5    4 |    3  13   8   6   6   5  16   6    3
  16  |   9  14   9   4   5   8  13   6    3 |   36  42  37  36  34  39  39  36   36
  17  |   7  14   8   5   5   6  13   9    3 |   33  37  35  35  30  29  31  33   32
  18  |   3  13   5   4   9   4  13   6    2 |    5  12   6   7   6   4  14   7    6
  19E |   6  15  10   5   6   5  21   8    4 |   31  32  35  32  32  33  30  30   31
  21  |   3  20   6   6   5   8  11   4    3 |    4  14   9   6   6   8   9   7    4
  22  |  11   9   8   9   9   9  38  11    6 |   34  36  37  37  30  39  28  35   35
  23  |   3  17   7   4   5   7  15   6    3 |    7  12  10   5   8   7  16   8    5
  24  |  14  19  18  10   6  10  37  14    7 |   47  44  42  44  43  44  45  45   42
  25E |   4  11   5   6   6  12  15   4    3 |    7  15   8   9   7  10  15   6    5
  26  |   5  22   6   5   5   5  13   6    3 |    5  20   9   5   6   4  18   6    4
  27E |   3  17   7   4   5   6  15   6    3 |    5  11   8   7   8   6  13   5    3
  29  |   4   7   6   4   7  11  18   5    3 |    3   6  10   6   8  11  18   6    4
  30  |   8   6  11   7   3   9  11  16    5 |   33  34  38  34  32  33  35  30   31
  31  |   3   8   4   5   7   8  11   5    2 |    4   9   7   5   4   7  11   6    3
------|--------------------------------------|--------------------------------------
 RMS  |   8  14   8   6   6   8  19   9      |T  19  22  21  20  19  20  22  19   18
 WRMS |   4  14   8   6   6   9  18   7      |NE 19  23  21  20  19  21  23  19   19
 MEDI |   5  14   7   5   5   8  15   6      |MD  7  14  10   7   8  11  17   8    5

Table 3.0900.2   GPS week: 0900   Day: 2   MJD: 50546.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   5   9   5   4   2   8  13   6    3 |    4  11   7   6   5   7  10  10    8
   2  |   4  12   5   5   4   8   8   6    3 |    3   6   7   5   5   8   9  10    8
   3  |   4   6   5   9   4  14  16   6    3 |    4   7   7   6   7  12  19   7    6
   4  |   4   8   5   4   4   9  14   5    2 |    4   9   8   5   5   8  14   6    5
   5  |   4   9   5   5   2  10  13   4    3 |    7   9  13   8   9  13  20   7    9
   6  |   4  12   5 ---   4   6 ---   5    3 |    4  10   7 ---   4   5 ---   7    5
   7  |   3  10   5   7   6   7  14   6    3 |    6  10   8   7   9   9  15  10    8
   9E |   5  13   5   5   5   7  18   5    3 |    8  14   9  10   8  11  15  10    9
  10  |   3  11   6   5   5   9  10   5    3 |    5   8   8   7   7   9  13   8    7
  14  |  15  38  85 ---  33  24  37  17   12 |    0   0   0 ---   0   0   0   0  ---
  15  |   4  12   5   3   7   8  17   6    3 |    4  10   6   6   9   4  15   9    7
  16  |   4  12   4   3   8   6  12   4    2 |   26  29  28  25  28  26  29  25   24
  17  |   6  10   6   5   5   9  18   6    3 |   18  20  17  15  17  18  22  16   16
  18  |   4  14   9   5  11   6  13   6    3 |    4  14   8   4  10   5  12   6    6
  19E |   5  13   8   4  11   9  23   5    3 |   22  24  26  24  25  23  35  25   25
  21  |   4  10   5   7   3   6  10   7    3 |    4   7   5   8   6   5  11  12    9
  22  |   3   9   6   5   6   7  10   4    2 |    3   9   7   4   6   4  13   6    5
  23  |   3  11   6   5   4  10  12   8    3 |    8   9   8   6   6  10  12  12    9
  24  |   5   7   5   5   8  19  16   5    3 |    9  11   7  10  11  21  18  10   10
  25E |   4  12   6   6   5   8  17   5    3 |    7  14   6   9   9   8  19  10    9
  26  |   4   8   5   4   4   6  16   5    2 |    5  11   7   5   6   6  15   7    8
  27E |   3  17   6   8   7   6  17   7    3 |    5  12   8   8   6   5  13  10    7
  29  |   3  10   4   5   5   5  19   5    3 |    5  10   7   5   6   8  13   9    7
  30  |   6   6   5   5   4   7  13   5    2 |   14  15  15  16  14  18  21  13   14
  31  |   3   8   4   7   7   5  18   6    3 |    3   9   7   6   5   6  18   5    5
------|--------------------------------------|--------------------------------------
 RMS  |   5  13  18   5   9  10  17   6      |T   9  13  11  10  11  12  17  11   10
 WRMS |   4  11   6   5   6  10  15   6      |NE  8  12  10   9  10  11  16  10    9
 MEDI |   4  10   5   5   5   8  15   5      |MD  5  10   8   7   7   8  15  10    8

Table 3.0900.3   GPS week: 0900   Day: 3   MJD: 50547.0

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

Table 3.0900.4   GPS week: 0900   Day: 4   MJD: 50548.0

               Weighted Average                Orbit Dynamics (7 days)
 PRN  | cod emr esa gfz igr jpl ngs sio  IGS |  cod emr esa gfz igr jpl ngs sio  IGS
------|--------------------------------------|--------------------------------------
   1  |   3   9   6   7   4  10  12   8    3 |    5  13  11   8   6  10  12   8    7
   2  |   6  19   6   3   3   7  11  14    3 |    4   6   9   4   5   8  14  15    7
   3  |   3   7   6   7   5   7  15  11    3 |    3   9   8   6   6   7  22   8    4
   4  |   4  10   6   5   4   7  18   8    3 |    8  18  10   8   9   8  25  11    7
   5  |   3  11   4   6   4  10  11   4    3 |    6  13   8   6   7   7  16   7    6
   6  |   4  12   7   6   3  10  21   6    3 |    3   9   6   5   4  12  11   7    5
   7  |   3  14   5   6   5   7  13   8    3 |    5   8  11   7   6   7  12   9    6
   9E |   3  18   6   7   6   5  17   7    3 |    8  16  14  12  12   8  23  11   10
  10  |   5  13   9   7   6   8  11   5    3 |    5  11  12   5   7   9  22   7    4
  14  |   2  14  10   8   5   7  18  11    4 |    3  12   6   4   4   5  11  11    3
  15  |   5  14   7   8   7  10  17   6    4 |    4   8  11   7   5   8  15   7    5
  16  |   9  16  30   8   8  15  21  10    7 |   11  14  36  14  15  15  10  16   14
  17  |   4  11   7   4   6   7  18   7    3 |    7  12  11   8  11  12  18   9    8
  18  |  12  43 111 ---  50  17  78  11   15 |    0   0   0 ---   0   0   0   0  ---
  19E |   4  15   5   8   9   8  32  11    5 |   13  22  18  18  17  14  36  18   16
  21  |   4  14   6   7   4   8   9   6    3 |    4  11   8   8   6  11   9   7    5
  22  |   3   9   6   6   4   7  12   4    3 |    2   9   8   6   4   7  18   5    4
  23  |   3  19   4   6   6   5  11   6    2 |    6  16   9   5   6   7  14   9    6
  24  |   5   9   5   7   5  15  14   7    4 |    8  12  12   9   9  14  18   8    8
  25E |   6  13   6   7   5   6  16   8    3 |    7  16  12   8   8   7  24  11    8
  26  |   3   9   5   5   5   6  12   6    2 |    5   8  12   5   8   9  18   9    7
  27E |   3  19   4   7   9   6  14  10    3 |    4  12  10   7   6   6  14  10    6
  29  |   5  10   8   5   6   8  11   7    3 |    4  10  10   6   8   9  13   9    5
  30  |   4  12   9   5   4   7  11   4    3 |    8  12  12   9  11   8  19  11   10
  31  |   3  13   6   6   8   7  15   6    3 |    4  10  10   7   7   8  21   7    4
------|--------------------------------------|--------------------------------------
 RMS  |   5  16  24   6  11   9  22   8      |T   6  12  12   8   8   9  18  10    7
 WRMS |   4  13   7   6   6   9  15   7      |NE  5  11  12   7   7   9  16   9    6
 MEDI |   4  13   6   7   5   7  14   7      |MD  5  12  11   7   7   8  17   9    6

Table 3.0900.5   GPS week: 0900   Day: 5   MJD: 50549.0

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

Table 3.0900.6   GPS week: 0900   Day: 6   MJD: 50550.0

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

Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the initial coordinates for the Latitude,
         Longitude and Height components.  See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
	 U    - Station Used in centre's solution (at least one day).
         Units: centimetres.

Table 4.0900   GPS week: 0900   MJD: 50544.0-50550.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2384 |U  50   35   81 |U  38   34   78 |   22   15   41 |
emr | emr 2269 |   51   33   82 |   40   36   79 |U  22   17   41 |
esa | esa 2064 |  124   74  158 |U  63   67  148 |   27   19   52 |
gfz | gfz 1158 |   55   36   89 |U  40   41   91 |   22   21   42 |
igr | igr 2372 |   49   35   82 |   39   39   80 |   22   15   41 |
igs | igs 2386 |   50   35   79 |   37   34   77 |   22   15   40 |
jpl | jpl 2356 |U  46   33   79 |U  37   36   76 |   21   15   38 |

Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit 
         positions and satellite clock corrections at 15 min intervals.

         Each line gives the daily station RMS w.r.t. the initial coordinates 
         for the Latitude, Longitude and Height components.
         
         CLK  - Satellite clocks used.
         EPO  - Number of satellite clock epochs available for that day.
         Units: centimetres.

Table 5.0900.0   GPS week: 0900   Day: 0   MJD: 50544.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2399 |   59   32   83 |   39   23   92 |   15   18   42 |
emr | emr 2388 |   61   31   84 |   40   24   93 |   14   22   37 |
esa | esa    0 |    0    0    0 |    0    0    0 |    0    0    0 |
gfz | gfz 1186 |   57   36   87 |   26   19   96 |   10   27   41 |
igr | igr 2398 |   57   33   84 |   39   23   90 |   15   17   36 |
igs | igs 2400 |   59   31   81 |   39   23   90 |   14   20   38 |
jpl | jpl 2289 |   57   32   88 |   35   23   74 |   17   23   39 |

Table 5.0900.1   GPS week: 0900   Day: 1   MJD: 50545.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2301 |   39   37   78 |   50   48   60 |   21   11   37 |
emr | emr 2071 |   56   21   86 |   62   55   71 |   21   17   46 |
esa | esa 2087 |   43   38   73 |   48   44   69 |   31   21   70 |
gfz | gfz 1129 |   43   42   75 |   56   56   68 |   27   17   43 |
igr | igr 2290 |   43   39   83 |   61   71   81 |   21   14   42 |
igs | igs 2303 |   39   38   79 |   51   51   61 |   21   13   38 |
jpl | jpl 2287 |   37   38   80 |   50   51   57 |   21   11   37 |

Table 5.0900.2   GPS week: 0900   Day: 2   MJD: 50546.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2398 |   48   35   83 |   32   35   71 |   25   15   43 |
emr | emr 2369 |   48   35   85 |   30   31   73 |   24   16   43 |
esa | esa 2072 |   52   33   81 |   36   33   83 |   28   15   56 |
gfz | gfz 1095 |   61   25  100 |   30   48   90 |   22   22   39 |
igr | igr 2364 |   45   35   82 |   28   31   71 |   28   16   49 |
igs | igs 2400 |   47   33   81 |   30   31   74 |   24   15   43 |
jpl | jpl 2381 |   44   34   83 |   30   32   77 |   24   14   39 |

Table 5.0900.3   GPS week: 0900   Day: 3   MJD: 50547.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2400 |   54   40   83 |   31   23   50 |   22   12   40 |
emr | emr 2073 |   41   43   78 |   30   24   59 |   25   15   38 |
esa | esa 2117 |  278  165  345 |  123  141  311 |   26   16   43 |
gfz | gfz 1194 |   64   39   93 |   33   23   51 |   20   20   37 |
igr | igr 2397 |   53   38   84 |   30   22   50 |   22   13   38 |
igs | igs 2400 |   54   40   81 |   30   23   48 |   22   13   39 |
jpl | jpl 2383 |   51   35   76 |   30   27   51 |   20   11   39 |

Table 5.0900.4   GPS week: 0900   Day: 4   MJD: 50548.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2397 |   40   35   69 |   26   26   67 |   23   15   34 |
emr | emr 2298 |   40   33   68 |   20   28   65 |   25   16   36 |
esa | esa 1995 |   46   34   71 |   32   28   69 |   26   18   40 |
gfz | gfz 1141 |   45   35   77 |   21   34   81 |   27   19   34 |
igr | igr 2399 |   41   33   66 |   23   28   68 |   25   14   33 |
igs | igs 2400 |   38   34   65 |   24   27   66 |   24   13   33 |
jpl | jpl 2383 |   35   28   64 |   23   30   67 |   22   13   28 |

Table 5.0900.5   GPS week: 0900   Day: 5   MJD: 50549.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2396 |   56   36   92 |   43   48  105 |   23   16   45 |
emr | emr 2347 |   56   34   96 |   45   47  103 |   24   14   47 |
esa | esa 1989 |   77   37   94 |   48   48  105 |   28   25   49 |
gfz | gfz 1177 |   55   44  110 |   56   61  132 |   21   17   52 |
igr | igr 2377 |   56   37   94 |   44   46  101 |   22   14   43 |
igs | igs 2400 |   57   35   91 |   43   47  103 |   22   14   45 |
jpl | jpl 2383 |   55   33   92 |   44   47  105 |   21   14   42 |

Table 5.0900.6   GPS week: 0900   Day: 6   MJD: 50550.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2397 |   50   32   79 |   37   25   85 |   22   18   42 |
emr | emr 2340 |   47   30   74 |   36   27   83 |   22   18   41 |
esa | esa 2123 |   51   31   75 |   43   28   87 |   24   19   47 |
gfz | gfz 1186 |   54   28   75 |   44   26   98 |   23   22   44 |
igr | igr 2379 |   44   31   75 |   37   27   86 |   22   17   42 |
igs | igs 2400 |   48   30   73 |   37   26   84 |   22   17   41 |
jpl | jpl 2384 |   38   28   69 |   37   28   88 |   21   16   38 |

-- 
==============================================================================
#  Yves Mireault                        /\       Geodetic Survey of Canada   #
#  Internet: [email-masked]       \/       Ottawa, Ontario, Canada     #
==============================================================================

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