Subject: [IGSREPORT-4757] Wk 0949 IGS Final Orbits
From: AC Coordinator / NRCan GSDivision
Date: Wed, 1 Apr 1998 7:57:29 PST

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IGS Electronic Report    Wed Apr  1  7:57:29 PST 1998      Message Number 4757
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Author: AC Coordinator / NRCan GSDivision
Subject: Wk 0949 IGS Final Orbits

Final IGS Orbit Combination - Week 0949   (Mar 15, 1998 - Mar 21, 1998)

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

COMBINATION STRATEGY:

For a complete description of combination strategy, please refer to the report
posted on CDDIS (IGS09497.SUM).

SOFTWARE:

  The weighted average software used was originally developed by T. Springer
and G. Beutler in 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 G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
   Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

   Kouba J., Mireault Y. and F. 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.

   Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
   International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
   pp. 45-76.

   Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
   International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
   pp. 55-100.

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.

  Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions.  AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 3 weeks (21 days), i.e. up to 5 days prior to
the last non-predicted day 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 integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as
Bulletin A fifth day prior to its last non-predicted day. Both IGS LOD and 
UT1-UTC values are printed in the IGS Final erp file.

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

 IGS09490-6.SP3  IGS GPS ephemeris files for days 0-6, week 0949 in SP3 format.
 IGS09497.ERP    Earth Rotation Parameters (ERP) and their rates as well as
                 Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                 with IGS ephemerides.
 IGS09497.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. Rapid ("IGR") orbits/clocks are included in the combination for statistics
   only.

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

4. Centre clock weights were determined using the following satellites:

         Day | PRN list | Ref. Centre 
        -----+----------+-----------------
         0-6 |    All   |    COD  (see note below)

     Note: A chosen reference centre is aligned to the broadcast GPS clocks
           using all satellites; all other centres are then aligned to that
           reference centre. The clock weights are computed from the absolute
           deviation of centre's aligned clock corrections with respect to the
           unweighted mean.

5. New clock offsets and drifts were estimated for centres showing reference
   clock resets.  Note that only the first clock offset and drift are output
   to the summary file.  However, the clock combination and the listed RMS
   include all the clock segments.  In summary, the following clock
   shifts/resets were noticed and accounted for:

                  Day | Centre |  Time  |  Jump
                  ----+--------+--------+-------------
                   4  |  EMR   | ~18:15 | ~ 89.1 ns
                   4  |  IGR   | ~18:15 | ~ 268.2 ns
                   5  |  IGR   | ~16:15 | ~ -273.1 ns
                   5  |  IGR   | ~17:30 | ~ -13 ns
                   5  |  IGR   | ~18:00 | ~ 0.7 ns

   Note: On days 4 and 5 IGR experienced clock drift changes around 18:00 UT
         caused by the clock reference station used in the AC Rapid submissions.
         All AC Rapid clock submissions were refered to the same reference 
         station which explains why it was not noticed at the time of the 
         IGS Rapid combination.

6. 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
               ----+-----+------------+-----------
                03 |  5  | 1998_03_20 | 1998040

7. 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
         ------------+----------+-------+----------+-------------------
          3 (Mar 18) | 00:00:00 |  19   |   All    | Modeling problems
          4 (Mar 19) | 00:00:00 |  14   |   All    | Modeling problems (a)
          4 (Mar 19) | 00:00:00 |  16   |   All    | Modeling problems
          6 (Mar 21) | 00:00:00 |  03   |   All    | Maneuver
          6 (Mar 21) | 00:00:00 |  24   |   All    | Modeling problems

   (a) Satellite PRN14 was excluded from long arc evaluation on days 1 and 4
       for all centres due to unrealistic RMS.

8. Starting on March 1, 1998 (GPS Wk 0947; MJD 50873) all IGS products,
   including the IGS Final combined orbits/EOP, are based on ITRF96. This
   change of reference frame from ITRF94 to ITRF96  will introduce only very
   small discontinuities, since ITRF96 reference frame is supposed to be
   (nominally) the same as that of ITRF94.  More specifically, the following
   changes were estimated, based on the ITRF94 and ITRF96 coordinates of the
   13 ITRF stations used for the ITRF realizations of IGS up to Feb 28, 1998
   (GPS Wk 0846; MJD 50872):

   (IGS(ITRF96)-IGS(ITRF94); epoch 1998.16 (March 1/98, Wk 0947, MJD 50873);
   (the transformation parameters are consistent with the IERS conventions) 

    IGS Orbits/EOP    T1(cm) T2(cm) T3(cm) D(ppb)  R1(mas) R2(mas) R3(mas)
                                                    PM y    PM x   (-dUT)

    Parameter          0.0   -.1     .1    -.4    -0.21    -.01    -.22
    Sigma               .3    .3     .3     .4      .10     .10     .10

    Rates per year      .02  -.09    .02   -.07    -.02     .01     .01
    sigma               .06   .06    .06    .09     .03     .02     .03 

   Also from March 1, the ITRF realization of IGS is based on a much larger set
   of up to 47 ITRF96 station positions and velocities provided by the ITRF 
   section of IERS. The new 47 ITRF96 station set, adopted by IGS for the 
   ITRF96 realization (of IGS), can be obtained from the IGS CB Archives:

     ftp://igscb.jpl.nasa/gov//igscb/station/coord/ITRF96_IGS_RS47.SNX.Z

   or the corresponding short SNX version (SSC) format (the same as the SNX
   but without the matrix, i.e. only the solution standard deviations are
   included):

     ftp://igscb.jpl.nasa/gov//igscb/station/coord/ITRF96_IGS_RS47.SSC.Z

9. Starting with GPS week 0948 (Mar 08,1998), the Weekly and Daily Precise
   Navigation Summaries found in Tables 4 and 5 respectively are now based 
   on receiver phase and pseudorange data. The estimated receiver positions
   (navigation mode, i.e. every 15 minutes) are modeled as a white noise 
   stochastic process with an apriori sigma of 10 m. Nominal yaw rates 
   are used together with fixed AC satellite orbits/clocks. The processing 
   is performed using JPL's new Gipsy-Oasis II point positioning capability 
   recently installed at NRCan by Ken Hurst. Special thanks to P. Tetreault
   (NRCan) for his precious help while experimenting with this new technique.

ORBIT COMBINATION AND EVALUATION STATISTICS:

For a complete description of tables and statistics, please refer to the report
posted on CDDIS (IGS09497.SUM).

Table 1: Week 0949 summary.                       (Mar 15, 1998 - Mar 21, 1998)

Table 1.0949.a   GPS week: 0949   MJD: 50887.0-50893.0

         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  104|-.01  .01 -.01  -.08   .06  -.13  -.3  .05  .04 |     .6   -1.8     .5
        | .00  .00  .00   .09   .07   .04   .1           |    5.2   12.0
emr  30 | .02  .00  .00   .24  -.34   .46  -.1  .11  .11 |  497.0   71.3    1.1
        | .01  .01  .00   .11   .07   .29   .3           |  851.8   36.1
esa  51 | .00  .01  .01  -.11  -.03  -.15   .1  .07  .06 |   -2.7  -11.6    2.6
        | .00  .00  .01   .09   .12   .13   .1           |    7.4   12.1
gfz  59 | .01 -.01  .00   .10   .02  -.07  -.1  .06  .05 |    -.1     .2     .4
        | .00  .00  .00   .07   .05   .02   .1           |    2.4    5.4
igr  n/a| .00  .00 -.01   .06   .04   .02   .0  .05  .04 |    3.5  -12.9    1.2
        | .00  .01  .00   .04   .07   .13   .0           |   64.0  213.1
jpl  37 | .00  .01  .01  -.13   .06   .00   .2  .06  .05 | -243.7    -.1     .2
        | .00  .00  .00   .07   .05   .08   .0           |  271.9    4.7
ngs  60 | .00 -.04  .00   .24   .24   .02   .0  .14  .14 |    -.6   -1.0   80.3
        | .00  .01  .01   .16   .07   .11   .2           |    1.0    2.3
sio  183| .00  .00 -.01   .10  -.14   .17  -.1  .09  .06 |     .0     .0     .0
        | .00  .01  .01   .06   .05   .16   .1           |     .0     .0

Table 1.0949.b   GPS week : 0949   MJD: 50887.0-50893.0

         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  |   2   2   2   2   3   2   3 |
   2  |   2   3   3   2   2   3   2 |
   3  |   2   3   2   2   2   0   2 | Maneuver on day 5.
   4  |   3   3   3   3   3   3   3 |
   5  |   2   2   2   3   2   2   2 |
   6  |   3   2   3   3   2   3   2 |
   7  |   3   3   2   3   2   3   3 |
   8  |   4   4   4   5   4   5   4 |
   9  |   3   3   3   3   2   3   2 |
  10  |   3   3   3   3   3   3   3 |
  13  |   7   7   6   6   6   6   6 |
  14  |   3   8   2   3   6   2   2 |
  15  |   4   3   3   3   4   3   3 |
  16  |   3   3   2   3   5   2   2 |
  17  |   2   2   3   3   3   3   3 |
  18  |   3   3   3   3   4   3   3 |
  19  |   3   3   3   3   3   3   3 |
  21  |   3   2   2   2   2   2   3 |
  22  |   2   2   2   2   2   2   2 |
  23  |   2   3   3   3   3   3   3 |
  24  |   3   3   3   3   3   4   5 |
  25  |   2   2   3   2   2   3   3 |
  26  |   3   3   3   3   2   3   3 |
  27  |   3   3   3   3   2   3   3 |
  29  |   2   2   3   2   3   3   2 |
  30  |   2   2   2   2   2   3   2 |
  31  |   3   3   2   3   2   2   2 |

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 2.0949.0   GPS week: 0949   Day: 0   MJD: 50887.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  102|-.01  .00 -.01  -.18   .00  -.11  -.3  .05  .05 |   -6.9   12.9     .3
emr  32 | .02  .00  .00   .14  -.34   .11  -.4  .11  .10 |  785.8   85.1     .4
esa  55 | .00  .00  .02  -.01   .13  -.03   .2  .06  .06 |  -15.5  -28.9    2.1
gfz  57 | .00  .00  .00   .09  -.02  -.10   .0  .07  .06 |   -1.6    3.5     .4
igr  n/a| .01 -.01 -.01   .11   .15   .16   .0  .06  .05 |    -.6     .7     .2
jpl  37 |-.01  .01  .01  -.08   .03  -.05   .2  .05  .05 |  -38.6   -2.3     .1
ngs  61 | .00 -.05  .01   .21   .28  -.05  -.3  .14  .14 |     .4    2.3   81.5
sio  183|-.01 -.01 -.01   .19  -.10   .34   .0  .09  .06 |     .0     .0     .0

Table 2.0949.1   GPS week: 0949   Day: 1   MJD: 50888.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  103|-.01  .00 -.01  -.09   .07  -.08  -.3  .05  .04 |   -6.8   16.8     .4
emr  31 | .02  .00  .00   .11  -.32   .53  -.3  .12  .11 |  869.2   85.9     .4
esa  55 |-.01  .02  .02  -.14  -.08  -.05   .1  .10  .06 |    7.2  -19.7    3.0
gfz  58 | .00 -.01  .00   .00   .03  -.09   .0  .06  .05 |   -2.4    6.4     .4
igr  n/a| .00  .00 -.01   .06  -.03   .02   .0  .05  .04 |     .3    -.9     .2
jpl  37 | .00  .01  .00  -.14  -.03   .05   .2  .06  .05 | -213.4   -2.0     .1
ngs  62 | .01 -.04  .02   .39   .20   .07  -.2  .14  .15 |    1.0    1.3   80.5
sio  181| .00  .00 -.01   .15  -.11  -.03  -.2  .09  .06 |     .0     .0     .0

Table 2.0949.2   GPS week: 0949   Day: 2   MJD: 50889.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  105|-.01  .01 -.01  -.04   .03  -.18  -.3  .04  .04 |    2.0   -3.1     .4
emr  32 | .01  .00  .00   .16  -.44   .50  -.2  .10  .09 |  952.4   85.1     .3
esa  56 | .00  .01  .02  -.03   .03  -.12   .1  .07  .07 |    2.5   -6.2    2.4
gfz  60 | .00 -.01  .00   .07  -.05  -.06  -.1  .06  .05 |    2.6   -6.0     .4
igr  n/a| .00 -.01 -.01   .04  -.02  -.03   .1  .04  .04 |    -.7    1.4     .2
jpl  37 | .00  .01  .01  -.20   .14  -.10   .2  .05  .05 |  229.4    2.2     .1
ngs  60 | .00 -.05  .00   .30   .34  -.09   .1  .14  .14 |   -1.4   -2.7   80.1
sio  184| .00  .01 -.01   .14  -.08   .24   .1  .08  .05 |     .0     .0     .0

Table 2.0949.3   GPS week: 0949   Day: 3   MJD: 50890.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  105|-.01  .01  .00  -.04   .13  -.20  -.3  .05  .05 |    1.7   -7.2     .4
emr  32 | .02 -.02  .00   .30  -.22   .29   .1  .11  .11 | 1038.0   85.4     .5
esa  55 | .00  .01  .00  -.16  -.23  -.15   .1  .07  .06 |    -.7    5.4    1.4
gfz  61 | .01 -.01  .00   .09   .07  -.05  -.1  .06  .06 |    1.1   -3.2     .4
igr  n/a| .00  .00 -.01   .00  -.06   .23   .1  .04  .04 |    -.3     .0     .3
jpl  37 | .00  .00  .00  -.23   .05   .02   .2  .05  .04 | -488.4    1.5     .1
ngs  61 | .00 -.05  .02   .47   .13   .01   .0  .13  .13 |   -1.4   -2.7   80.6
sio  182| .00  .01 -.01   .10  -.18   .14  -.1  .09  .06 |     .0     .0     .0

Table 2.0949.4   GPS week: 0949   Day: 4   MJD: 50891.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  104|-.01  .00  .00   .05   .07  -.12  -.2  .05  .04 |    4.0  -10.2     .5
emr  29 | .01  .00  .00   .40  -.30   .66   .0  .11  .11 | 1125.0   85.6    2.7
esa  49 | .00  .00  .01  -.25  -.03  -.32   .1  .06  .06 |   -5.8  -19.4    4.7
gfz  60 | .01  .00 -.01   .07   .04  -.06  -.1  .07  .05 |     .2    -.3     .4
igr  n/a| .00 -.01  .00   .03   .05  -.02   .0  .05  .04 |  -97.3  320.9    2.7
jpl  37 | .00  .00  .01  -.11   .06  -.04   .2  .06  .06 | -485.7     .7     .3
ngs  62 | .00 -.03  .00   .00   .29   .25  -.1  .14  .15 |    -.4   -1.5   79.1
sio  184| .00  .00 -.01   .06  -.17   .14   .0  .09  .07 |     .0     .0     .0

Table 2.0949.5   GPS week: 0949   Day: 5   MJD: 50892.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  104|-.01  .01 -.01  -.08  -.04  -.13  -.4  .04  .04 |    5.2  -15.0     .5
emr  30 | .03  .01  .00   .30  -.36   .93   .3  .13  .13 |  -86.2  -10.6     .4
esa  42 |-.01  .01  .00  -.07   .09  -.34   .1  .08  .07 |     .0     .0     .0
gfz  59 | .01 -.01  .00   .14   .01  -.08   .0  .06  .05 |    2.7   -5.6     .5
igr  n/a| .00  .00 -.01   .06   .05  -.12   .0  .05  .05 |  123.2 -413.3    1.4
jpl  37 | .00  .00  .01  -.08   .10  -.03   .2  .05  .04 | -224.7   -7.9     .2
ngs  57 | .00 -.04  .00   .11   .24  -.03   .3  .15  .15 |   -1.4   -3.8   80.3
sio  183| .00  .01  .00   .02  -.21   .38   .0  .10  .07 |     .0     .0     .0

Table 2.0949.6   GPS week: 0949   Day: 6   MJD: 50893.0

CENT STA|  DX   DY   DZ    RX    RY    RZ  SCL  RMS WRMS |   TOFT  TDRFT    RMS
--------|------------------------------------------------|---------------------
cod  104|-.01  .01  .00  -.20   .14  -.11  -.2  .05  .04 |    4.8   -7.1     .7
emr  27 | .01 -.01  .00   .31  -.40   .20   .0  .09  .09 |-1205.0   82.4     .4
esa  42 | .00  .01  .01  -.11  -.10  -.04   .3  .06  .06 |   -6.6  -12.1    1.9
gfz  61 | .01 -.01  .00   .21   .07  -.07  -.1  .07  .06 |   -3.1    6.8     .4
igr  n/a| .00 -.01 -.01   .11   .10  -.11   .0  .05  .04 |    -.5     .7     .6
jpl  37 | .00  .01  .01  -.04   .03   .15   .2  .05  .05 | -484.2    7.3     .2
ngs  58 | .00 -.03 -.01   .20   .22   .03   .3  .14  .14 |   -1.1    -.2   80.0
sio  181| .00 -.01  .00   .05  -.13  -.01  -.1  .11  .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 3.0949.0   GPS week: 0949   Day: 0   MJD: 50887.0

               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   4   5   5   4  13   6    2 |    4  11   5   5   7   6  10   6    4
   2  |   4   8   6   5   4   6  12   5    2 |    6   8   9   7   8   6   7   7    5
   3  |   2   8   4   3   5   3  16   6    2 |    4   7   5   5   6   3  12   5    3
   4  |   3   9   5   7   3   5  18   7    3 |    4   9   5   9   6   4  14   6    4
   5  |   3   6   4   3   4   4  12   5    2 |    3  11   4   6   6   5  13   7    4
   6  |   4   7   5   9   6   4  12   9    3 |    4   9   5   9   6   3  13   8    3
   7  |   4  13   6   6   5   3   9   9    3 |    5  11   5   7   5   3  10   8    4
   8  |   7   8   6  14   4  13  15   5    4 |    3  11   3   9   7  15  15   6    5
   9  |   4  10   5   7   4   4  13   5    3 |    5   8   4   7   7   4  15   5    4
  10  |   4  13   7   9   7   3  13   6    3 |    5  11   4   7   8   5  13   6    4
  13  |  12  16  10   9   8  10  19  35    7 |    5  16   7   8  13  18  13  36   12
  14  |   4  10   8   4   7   4  11   5    3 |   30  36  33  29  28  32  29  29   31
  15  |   4  21  13   6   7   4  12   8    4 |    3  12   5   8   6   6  12   5    4
  16  |   4  10   5   4   7   5  21   4    3 |    3   8   6   5   6   5  14   4    3
  17  |   4   7   5   7   4   3  13   5    2 |    3   8   4   7   6   2  13   4    3
  18  |   6  12   8   6   5   6  17   5    3 |    7   8   9   7   8   8  17   7    6
  19  |   5   9   9   5  11   6  18  10    3 |    5  11   4   8  11   9  14  10    5
  21  |   4  17   3   6   4   6  11   4    3 |    4  14   4   8   7   5  10   7    5
  22  |   5   7   8   4   3   5  10   4    2 |    5   9   8   6   7   6   8   7    5
  23  |   4   9   6   4   6   5  12   5    2 |   10  10  13   8  12  11  11  11    9
  24  |   5  11   6   9   5   4  14   6    3 |    5  12   5   8   8   5  13   4    4
  25  |   4  10   4   4   5   3  13   5    2 |    4   8   4   5   7   4  14   5    3
  26  |   4  11   5   4   4   4  20   7    3 |    7  12   7   7   8   8  19   9    6
  27  |   3  10   6   4   5   7  16   8    3 |    5  12   7   5   8   7  12  12    4
  29  |   3  10   4   6   6   3  14   5    2 |    4  12   7   7   9   7  12   7    5
  30  |   3   8   4   6   4   4   8   4    2 |    5   8   6   7   7   5   7   6    4
  31  |   6   7   7   7   6   3  14   7    3 |    7   8   4   7   7   4  12   6    4
------|--------------------------------------|--------------------------------------
 RMS  |   5  11   6   7   6   5  14   9      |T   7  12   8   8   9   9  13  11    7
 WRMS |   5  10   6   6   5   5  14   6      |NE  7  12   8   8   9   9  13  11    7
 MEDI |   4  10   6   6   5   4  13   5      |MD  5  11   5   7   7   5  13   7    4

Table 3.0949.1   GPS week: 0949   Day: 1   MJD: 50888.0

               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   9   4   5   5   4  11   5    2 |    3   8   5   5   7   6  11   5    4
   2  |   4  14   8   6   3   3  10   6    3 |    3  11   5   6   5   4  10   7    4
   3  |   4  12   5   5   3   4  13   8    3 |    3   6   6   5   5   3  12   6    3
   4  |   2  14   6   3   3   3  15   7    3 |    5   9   7   5   5   5  18   6    4
   5  |   4   7   4   3   2   3  13   5    2 |    2  10   4   4   5   3   8   5    3
   6  |   4   7   5   5   3   4  13   8    2 |    3  10   4   7   5   3  12   8    4
   7  |   3  15   8   4   3   3  14   6    3 |    4  11   5   6   6   4  12   6    4
   8  |   7   7   6  14   3  13  10   8    4 |    3  11   4  10   6  14  12   6    5
   9  |   4  16   4   6   4   4  12   5    3 |    4   9   4   7   7   5  14   4    4
  10  |   5  10   8   7   5   3  17  10    3 |    4   9   5   6   5   4  18   6    4
  13  |  10  18   9  12  10  16  22  32    7 |    5  10   7  10  13  18  15  33    9
  14  |  15  13  42  11  13  15  21  13    8 |    0   0   0   0   0   0   0   0  ---
  15  |   4  18   8   4   3   4  14   6    3 |    3  14   7   7   4   4  13   5    4
  16  |   6  13   7   5   7   5  21   6    3 |    4  11   7   4   6   4  21   5    3
  17  |   4   8   5   7   4   3  10   7    2 |    3   6   4   7   5   3  12   6    3
  18  |   4  10   6   6   3   5  19   6    3 |    5   5   6   7   8   5  20   8    5
  19  |   4  12   5   7   5   5  13   7    3 |    5   8   3   8   9   5  13   7    5
  21  |   3  11   5   5   2   4   8   6    2 |    3  10   5   6   6   5  10   5    4
  22  |   4   7   4   3   4   3   9   4    2 |    3   8   5   3   5   3   7   5    2
  23  |   5   9   7   7   4   5  13   5    3 |    7  10  12   8   8  10  16   8    7
  24  |   4  13   4   5   4   4  15   7    3 |    4  13   4   5   7   5  18   5    4
  25  |   3   9   5   4   4   3  13   6    2 |    3   8   3   5   6   3  14   6    3
  26  |   4  10  10   3   5   4  19   6    3 |    5   8   7   7   8   7  18   6    5
  27  |   4  11   9   4   3   5  14   7    3 |    3  11   4   5   5   6  12   8    3
  29  |   3   9   5   5   3   3  12   6    2 |    5   9   6   6   7   6  14   7    4
  30  |   4  11   4   3   2   4   8   6    2 |    4   9   5   6   5   3   6   8    3
  31  |   3  14   5   6   4   5  16   6    3 |    4  10   5   5   5   5  15   6    3
------|--------------------------------------|--------------------------------------
 RMS  |   5  12  10   6   5   6  14   9      |T   3   9   5   6   6   6  14   8    4
 WRMS |   4  11   6   5   4   5  15   6      |NE  3   9   5   6   6   6  13   8    4
 MEDI |   4  11   5   5   4   4  13   6      |MD  4  10   5   6   6   5  13   6    4

Table 3.0949.2   GPS week: 0949   Day: 2   MJD: 50889.0

               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   5   4   5  10   6    2 |    4   8   5   5   6   6  12   8    4
   2  |   4   9  10   4   2   6  13   3    3 |    4   8   6   5   4   4  10   6    3
   3  |   3   7   5   5   3   4  17   6    2 |    4   8   6   5   5   4  17   5    4
   4  |   3   9   4   3   4   3  20   6    3 |    4   9   4   5   5   2  17   5    3
   5  |   3   6   7   3   4   4  11   5    2 |    3   9   6   5   5   3  11   7    4
   6  |   4   7   8   4   3   3  18   7    3 |    3   9   5   6   5   2  13   7    3
   7  |   4   8   7   6   2   4  13   5    2 |    4   8   6   8   5   3  10   5    4
   8  |   6  10   6  15   3  12  13   5    4 |    4  10   4  10   7  14  16   7    5
   9  |   3  17   5   7   4   4  14   4    3 |    4  10   5   9   8   4  16   6    5
  10  |   4  12   8   5   3   4   9   9    3 |    3   9   7   5   5   4  10   8    3
  13  |  10  14   9  12  11  10  14  31    6 |    5  14   8   9  14  14  14  35   10
  14  |   4   7   7   7   5   6   9   4    2 |   27  28  27  26  27  27  26  27   26
  15  |   5  11  11   7   4   3  12   5    3 |    3   8   8   9   5   2  13   4    4
  16  |   3   6   5   4   3   4  16   4    2 |    3  10   7   6   6   4  14   5    4
  17  |   5   9   5   8   4   5  19   5    3 |    3   9   3   8   5   3  14   5    3
  18  |   4   9   9   5   6   5  20   6    3 |   10  14   9  10  12  12  17  12   10
  19  |   4   8 ---   9   5   6  16   5    3 |    3   8 ---   5   6   6  13   7    4
  21  |   3   7   6   5   3   4  10   4    2 |    3   6   5   7   4   4  12   6    4
  22  |   3   7   4   5   4   4   6   4    2 |    4  10   8   6   5   5   9   7    5
  23  |   5  10   9   5   4   5  12   6    3 |    8  11  12   7   8   8  13   9    7
  24  |   5   9   4   5   3   5  13   8    3 |    4   8   6   6   7   5  14   5    4
  25  |   3   9   7   7   3   4  15   5    3 |    3   8   5   6   6   3  13   6    3
  26  |   4  12   5   3   4   6  20   9    3 |    7  12   9   6   9   9  22  10    7
  27  |   4  13  11   4   3   5  12   7    3 |    3  14  13   6   5   5  11  10    4
  29  |   4   9   6   5   4   6  15   4    3 |    5   9   6   7   8  10  15   9    6
  30  |   4   7   4   3   2   5   9   5    2 |    4   9   5   5   4   7  10   7    4
  31  |   4   9   6   4   3   4  14   7    2 |    5   8   7   6   5   4  14   5    4
------|--------------------------------------|--------------------------------------
 RMS  |   4  10   7   6   4   5  14   8      |T   6  10   8   8   8   8  14  10    7
 WRMS |   4   9   7   5   4   5  14   5      |NE  6  10   8   8   8   8  14  10    7
 MEDI |   4   9   6   5   4   5  13   5      |MD  4   9   6   6   5   4  13   7    4

Table 3.0949.3   GPS week: 0949   Day: 3   MJD: 50890.0

               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   9   6   6   2   4  11   6    2 |    4   8   6   5   5   6  11   7    4
   2  |   4  10   5   4   4   2  13   6    2 |    4   7   6   6   6   5   9   6    4
   3  |   3   8   3   4   2   4  16   4    2 |    3   7   5   4   4   3  14   4    3
   4  |   3  11   6   2   2   4  12   8    3 |    4  11   8   5   4   4  16   6    4
   5  |   4  15   5   4   3   3  11   6    3 |    2  15   5   6   6   5   8   7    4
   6  |   5   7   4   6   2   5  10   8    3 |    4   8   5   8   5   4  13   6    4
   7  |   4  10   5   6   3   2  14   7    3 |    4   8   5   6   5   4  12   8    4
   8  |   7  16   7  16   5  12  11   7    5 |    3  19   4  10   7  15  17   7    6
   9  |   4  18   6   6   3   3  14   9    3 |    5  18   5   8   7   5  19   6    6
  10  |   4  12   7   7   7   5  10   9    3 |    4  14   6   9   6   6  13   6    5
  13  |  11  19   8  10   7   9  17  29    6 |    4  16   9  11  13  17  14  34   11
  14  |   3   9  11   5   6   4  10   6    3 |   22  23  26  24  22  21  24  20   23
  15  |   5  12   7   6   4   5  14   6    3 |    4   9   5   6   5   4  14   4    3
  16  |   4   6  12   5   6   4  12   6    3 |    4   7   8   6   4   3  10   4    3
  17  |   5  13   5   6   3   3  15   8    3 |    3  13   5   9   6   3  11   7    4
  18  |   4   8   6   5   3   5  16   8    3 |    7  14   6   8   7   7  18  11    6
  19  |   3   8 ---  10   4   4  10   9    3 |    7   9 ---  12   7   5  14  10    7
  21  |   4   8   6   6   3   4  10   6    2 |    4   7   5   8   4   4  10   5    4
  22  |   4   5   9   4   3   3  10   4    2 |    3  10  10   7   6   6  13   6    5
  23  |   5  11   7   8   4   6  13   6    3 |   10  14  11   9  10  11  15   9    9
  24  |   5  10   5   5   4   7  16  12    3 |    4  10   6   7   6   5  18   8    5
  25  |   3   8   4   6   3   4  13   4    2 |    3  10   5   6   5   4  15   7    4
  26  |   3  11   5   4   3   6  16   9    3 |    5  10   9   9   7   8  18  10    7
  27  |   4  16   9   5   7   5  12   7    3 |    4  17   9   5   7   5  12   8    4
  29  |   4   9   5   5   3   5  14   5    2 |    5  10   9   6   6   7  15   9    6
  30  |   4   8   5   5   3   5  12   4    2 |    4  11   7   9   6   4  12   6    5
  31  |   4  10   6   7   5   3  14   7    3 |    4   7   7   8   6   4  15   6    4
------|--------------------------------------|--------------------------------------
 RMS  |   5  11   7   6   4   5  13   9      |T   6  12   8   8   7   7  14  10    6
 WRMS |   5  11   6   6   4   4  13   6      |NE  6  12   8   8   7   7  14  10    6
 MEDI |   4  10   6   6   3   4  13   7      |MD  4  10   6   8   6   5  14   7    4

Table 3.0949.4   GPS week: 0949   Day: 4   MJD: 50891.0

               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   9   4   8   4   4  13   5    3 |    5   9   6   6   5   6  12   7    5
   2  |   4   6   5   4   2   4  11   6    2 |    4   8   7   5   5   4   7   7    4
   3  |   5   7   8   3   4   5  14   5    2 |    4   7   6   5   5   3  12   5    4
   4  |   2  12   4   4   5   4  16   8    3 |    5  11   5   7   7   4  17  11    5
   5  |   4  12   3   3   2   2  12   6    2 |    3  12   6   4   5   4   8   4    3
   6  |   4   6   4   5   4   4  13   9    2 |    5   8   7   8   6   5  14   8    6
   7  |   3   9   4   4   4   3  14   6    2 |    5   9   9   7   7   4  18   7    7
   8  |   6  14   6  15   5  12  11   7    4 |    5  13   6  12   7  13  16   8    6
   9  |   4  11   4   4   3   4  14   7    2 |    5   8   5   6   6   5  13   9    5
  10  |   3  12   6   5   3   4   9   9    3 |    3  10   6   6   7   3  11   6    4
  13  |   9  18  10  11   6   8  17  30    6 |    6  12   9  11  13  16  15  37   11
  14  |  12  17 ---  13  13  14  26  10    6 |    0   0 ---   0   0   0   0   0  ---
  15  |   6  23   8   7   6   5  13   8    4 |    5  13   6   8   5   3  16   7    4
  16  |   9   7 ---   9   4  16  16   7    5 |   11  15 ---  14  14  19  15  16   13
  17  |   4  15   4   6   6   3  15   7    3 |    5  10   4   9   6   3  14   7    5
  18  |   6  10  11   5   4   7  21   7    4 |    8  13  11  10  10   8  22  14    9
  19  |   3  10   5   8   3   6  13   6    3 |    6  10   7   9   8   8  14   6    6
  21  |   3   9   5   6   3   3   9   5    2 |    3   9   6   8   5   4  10   4    4
  22  |   3   7   4   8   3   5   7   6    2 |    4  11   4   7   6   5  10   8    4
  23  |   4   9   7   5   3   6  11   5    3 |    7  11  12   8   8   9  14   8    8
  24  |   5  13   5   3   4   6  16  10    3 |    2  11   7   5   5   3  16   7    2
  25  |   4   8   5   6   4   3  13   7    2 |    5  10   6   7   7   5  14   9    4
  26  |   4   9   5   3   4   3  11   7    2 |    7  11  12   9   9  10  16  12    8
  27  |   4   9   5   5   3   5  11   9    2 |    5   9   8   7   6   7  11  11    5
  29  |   3   8   9   7   3   3  16   5    3 |    7  10  11   7   8   9  13   9    7
  30  |   4  10   4   4   2   4  13   6    2 |    4  15   7   9   7   3  10   8    6
  31  |   4   6   3   5   6   4  18   6    2 |    6   8   5   8   7   5  20   8    6
------|--------------------------------------|--------------------------------------
 RMS  |   5  11   6   7   5   6  14   9      |T   5  10   7   8   7   7  14  11    6
 WRMS |   4  11   6   5   4   6  15   7      |NE  5  10   7   7   7   7  13  10    6
 MEDI |   4   9   5   5   4   4  13   7      |MD  5  10   6   8   7   5  14   8    5

Table 3.0949.5   GPS week: 0949   Day: 5   MJD: 50892.0

               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   8   7   6   3   3  14   5    2 |    5   8   5   7   7   6  12   7    5
   2  |   3  16  10   4   4   4  13   6    3 |    4  14   5   6   6   5   9   5    4
   3  | --- ---   2 --- --- --- --- ---    0 |  --- ---   0 --- --- --- --- ---  ---
   4  |   5  16   8   3   6   4  19   9    3 |    5  15  13   7   8   6  16   9    6
   5  |   2  14   3   2   5   3  10   5    2 |    2  15   4   3   4   3   7   4    2
   6  |   4   9   8   5   3   5  12   6    3 |    4  13   6   8   5   5  10   6    5
   7  |   5   9  12   6   8   3  11   7    3 |    6   9   5   9   9   7  10   8    5
   8  |   7  15   7  15   5  17  17   9    5 |    5  13   5  11   8  19  19   6    6
   9  |   4  19   5   5   5   4  20   9    3 |    6  13   6   7   8   6  21   8    6
  10  |   3  17   7   4   7   6  11   9    3 |    3  13   7   6   8   5  11   5    4
  13  |   9  21   9   9   6   6  12  34    6 |    5  11   7   6   7  12  11  32    7
  14  |   4  12   7   5   5   4  10   5    2 |    3   6   4   4   4   3   8   4    2
  15  |   4  16   8   6   4   3  13   8    3 |    4  11   6   8   6   5  15   6    4
  16  |   4  11   8   4   6   4  12   6    2 |    7   6   5   7   6   5  12   4    5
  17  |   3  12   4   6   5   3  15   8    3 |    4  10   5   9   5   4  12   7    4
  18  |   5  13  14   5   4   5  19   6    3 |   10  16   6  11  11   8  21  13    9
  19  |   4  15  12   8   4   5  17   7    3 |    6  10   6  11   7   6  17   7    6
  21  |   3  11   5   4   2   4   9   5    2 |    3   8   4   6   5   5  10   6    4
  22  |   3  10   5   4   5   3  10   5    2 |    3  10   7   4   6   4  11   6    4
  23  |   6  12   6   5   4   4  11   5    3 |    7  11   9   7   7   8  10  10    6
  24  |   4  14  16   4   6   5  16  11    4 |    2  11  17   4   5   4  15   4    5
  25  |   5  11   7   6   6   4  17   5    3 |    4  10   5   5   8   4  15   5    4
  26  |   4   9   7   4   3   3  13  12    3 |    9  12   7   9  10  11  19  13    8
  27  |   3  12   5   5   3   5  15   6    3 |    6  11   7   6   7   8  13   9    5
  29  |   5   9   6   7   3   4  22   4    3 |    6   9   6   7   8   8  15   8    6
  30  |   4  15   7   3   3   5  16   6    3 |    3  16   7   5   5   4  11   5    4
  31  |   4  13   5   3   7   3  11   7    2 |    6  11   6   6  10   5  13   6    5
------|--------------------------------------|--------------------------------------
 RMS  |   4  13   8   6   5   5  15  10      |T   5  11   7   7   7   7  13   9    5
 WRMS |   4  13   7   5   5   4  15   7      |NE  5  11   6   7   7   7  13   9    5
 MEDI |   4  13   7   5   5   4  13   6      |MD  5  11   6   7   7   5  12   6    5

Table 3.0949.6   GPS week: 0949   Day: 6   MJD: 50893.0

               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   7   8   5   4   4  13   8    3 |    6   9   6   7   7   7  15   9    6
   2  |   4   8   8   5   3   4   8   7    2 |    6  12   6   8   7   5  13   7    6
   3  |   3  10   7   5   3   3  13   5    2 |   11   9  11  10  10   9  11   9   10
   4  |   3  11   6   5   4   4  14  12    3 |   10  11   8  10  10   9  18  11    9
   5  |   3  10   4   3   3   4   8   4    2 |    4  14   4   5   6   4   7   6    4
   6  |   4   7   5   5   4   6  11   9    2 |    7   9   6   8   7   6  16   8    7
   7  |   5  11  13   6   3   5  11  10    3 |    7   9   6   8   7   7  13   8    7
   8  |   6   9   7  14   3  10  10   9    4 |    7  15   6  12   9  13  18   9    8
   9  |   3   9   6   4   5   4  12   7    2 |    7  13   5  10   9   6  18   8    7
  10  |   3   9   6   5   3   5  13  11    3 |    4   9   6   8   7   6  15  10    5
  13  |   9  17   9   9   9   8  17  35    6 |    7  12  11  12  13  15  15  36   11
  14  |   3   6   7   4   4   4   7   7    2 |    3   6   4   6   5   4  10   6    4
  15  |   6   8   5   9   5   4  18   7    3 |    7   9   5  11   8   6  19  10    7
  16  |   2   6   5   4   7   4  11   8    2 |    5   6   6   8   6   5  10   8    5
  17  |   3  10   7   8   5   3  12  11    3 |    6  13   6  10   7   6  16   9    7
  18  |   2   8   4  12   6   7  18   6    3 |    8  11  11  11   9  11  17  10    9
  19  |   3   6   6   9   4   5  24   6    3 |    6  10   4  12   8   5  22   7    6
  21  |   4   8   5   6   3   4  14   8    3 |    5   8   6   9   7   5  10   6    5
  22  |   2   7   5   5   2   4  13   7    2 |    5  11   8   7   7   6  16   5    6
  23  |   6   9   7   9   7   4  14   7    3 |   10  13  11   8   8  11  14  11    9
  24  |  10  12 ---   8  13  12  18  13    5 |    2   8 ---   2   5   9   3   2    3
  25  |   4  11   7   5   5   7  12  10    3 |    5  10   4   6   7   5  18   8    5
  26  |   3  11   4   4   4   3  18  10    3 |   11  11  10  10  12  13  26  15   10
  27  |   4  13   6   4   3   5  12  10    3 |    9  13   9   9   9  10  21  14    8
  29  |   3   8   5   3   5   4  17   6    2 |    7  11   8   7   9  10  20  13    8
  30  |   3   9   4   4   2   4   9   5    2 |    4  12   6   6   6   5   9   6    5
  31  |   5   6   5   6   7   3  15   6    2 |    8   8   7   9   9   7  19   8    7
------|--------------------------------------|--------------------------------------
 RMS  |   5   9   6   7   5   5  14  11      |T   6  10   7   8   8   8  15  11    7
 WRMS |   4   9   6   6   4   5  14   8      |NE  6  10   7   8   8   8  15  11    7
 MEDI |   3   9   6   5   4   4  13   8      |MD  7  11   6   8   7   6  16   8    7

Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated 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 4.0949   GPS week: 0949   MJD: 50887.0-50893.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2578 |U   7    8   18 |U  16   14   31 |    7    8   12 |
emr | emr 2564 |    2    3    5 |    4    5    8 |U   3    3    6 |
esa | esa 2442 |   26   36   45 |U  23   33   55 |   35   27   51 |
gfz | gfz 2575 |    2    3    5 |U   3    3    6 |    3    3    5 |
igr | igr 2577 |    2    3    6 |    4    4    9 |    3    3    5 |
igs | igs 2578 |    3    5    7 |    5    6    9 |    3    4    6 |
jpl | jpl 2385 |U   2    1    4 |U   4    4    7 |    4    4    4 |

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 estimated 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 5.0949.0   GPS week: 0949   Day: 0   MJD: 50887.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2592 |    6   10   12 |   15   15   34 |    7    7   14 |
emr | emr 2566 |    3    6    8 |    3    3    5 |    2    2    3 |
esa | esa 2523 |   22   24   40 |   20   23   58 |   22   22   32 |
gfz | gfz 2590 |    4    6    8 |    2    2    5 |    2    3    3 |
igr | igr 2592 |    3    5    8 |    3    1    6 |    3    3    5 |
igs | igs 2592 |    3    7    9 |    3    3    5 |    2    3    5 |
jpl | jpl 2400 |    2    2    3 |    2    3    4 |    2    2    3 |

Table 5.0949.1   GPS week: 0949   Day: 1   MJD: 50888.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2591 |    7    7   12 |   11   10   21 |   10    8   13 |
emr | emr 2554 |    2    2    4 |    2    3    3 |    5    4   10 |
esa | esa 2535 |   20   24   26 |   19   35   52 |   29   31   37 |
gfz | gfz 2590 |    2    2    4 |    2    2    4 |    3    3    5 |
igr | igr 2592 |    2    2    3 |    3    3    7 |    3    2    5 |
igs | igs 2592 |    2    4    5 |    2    4    5 |    4    3    6 |
jpl | jpl 2397 |    2    1    3 |    2    2    4 |    1    2    3 |

Table 5.0949.2   GPS week: 0949   Day: 2   MJD: 50889.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2592 |    8    8   13 |    7   11   19 |    6    6    8 |
emr | emr 2584 |    2    3    5 |    4    3    6 |    3    2    5 |
esa | esa 2459 |   16   19   26 |   20   22   44 |   23   27   35 |
gfz | gfz 2591 |    2    1    3 |    2    2    4 |    2    3    4 |
igr | igr 2592 |    2    2    4 |    2    3    6 |    4    4    7 |
igs | igs 2592 |    2    3    4 |    2    3    6 |    3    3    5 |
jpl | jpl 2399 |    2    1    3 |    1    1    3 |    5    3    7 |

Table 5.0949.3   GPS week: 0949   Day: 3   MJD: 50890.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2592 |    7    7   36 |   10    8   19 |    6    6    9 |
emr | emr 2590 |    2    4    5 |    3    4    6 |    2    3    6 |
esa | esa 2406 |   32   41   54 |   22   41   59 |   26   20   37 |
gfz | gfz 2583 |    3    3    6 |    2    2    4 |    5    3    8 |
igr | igr 2585 |    3    3    7 |    2    4    7 |    3    2    6 |
igs | igs 2592 |    2    5    7 |    2    3    4 |    3    3    5 |
jpl | jpl 2398 |    1    1    3 |    1    2    3 |    1    2    3 |

Table 5.0949.4   GPS week: 0949   Day: 4   MJD: 50891.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2591 |    6    6   12 |   11   14   27 |    8    8   15 |
emr | emr 2583 |    1    2    3 |    2    3    5 |    3    4    6 |
esa | esa 2291 |   35   51   34 |   35   44   77 |   57   32   93 |
gfz | gfz 2590 |    2    3    4 |    2    2    6 |    3    6    7 |
igr | igr 2587 |    2    2    4 |    3    3    7 |    3    4    7 |
igs | igs 2592 |    3    6    9 |    4    8   12 |    4    4    9 |
jpl | jpl 2400 |    1    2    2 |    2    3    6 |    1    2    2 |

Table 5.0949.5   GPS week: 0949   Day: 5   MJD: 50892.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2496 |    8    9   14 |   32   23   57 |    6    6   13 |
emr | emr 2486 |    2    3    5 |   10   12   16 |    2    2    4 |
esa | esa    0 |    0    0    0 |    0    0    0 |    0    0    0 |
gfz | gfz 2494 |    2    2    3 |    7    7   12 |    2    3    4 |
igr | igr 2496 |    2    3    6 |   10    8   19 |    2    3    3 |
igs | igs 2496 |    2    5    5 |   12   11   19 |    2    3    4 |
jpl | jpl 2300 |    1    1    2 |   10    9   15 |    1    2    3 |

Table 5.0949.6   GPS week: 0949   Day: 6   MJD: 50893.0

CENT| CLK EPO  |      BRUS      |      USUD      |      WILL      |
----|----------|----------------|----------------|----------------|
cod | cod 2591 |    8    9   14 |    9    8   16 |    8   11    9 |
emr | emr 2588 |    2    2    4 |    2    2    4 |    1    2    2 |
esa | esa 2435 |   28   44   72 |   19   24   28 |   42   27   44 |
gfz | gfz 2588 |    2    2    5 |    3    2    3 |    2    3    3 |
igr | igr 2592 |    3    2    7 |    2    2    3 |    1    2    2 |
igs | igs 2592 |    3    3    6 |    2    3    3 |    3    6    5 |
jpl | jpl 2398 |    4    2    7 |    2    2    4 |    8   10    6 |

Table 6: Earth Orientation Parameters weekly summary.                          
                                                                               
         Weekly mean and standard deviation of Centre ERP, ERP rates and       
         LOD differences with respect to IGS combined values. See Table 7 for  
         the daily summaries.                                                  
                                                                               
         Xpole,Xrt: x pole and x pole rate (10**-5")                           
         Ypole,Yrt: y pole and y pole rate (10**-5"/day)                       
         LOD: Length Of Day (us)                                               
                                                                               
         AC LOD BIAS: 21-day mean LOD bias with respect to Bulletin A (us)     
         AC LOD BIAS RMS: RMS of AC LOD BIAS (us)                              
                                                                               
         FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
               for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.0949   GPS week: 0949   MJD: 50887.5-50893.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12     12     -1     -6     -9 |     -22     33
            |      9     10     10     15      6 |       3
emr   uuuuu |     47    -26     49     39     15 |       0     36
            |      8      6     48     32     11 |       1
esa   uuuuu |     -3      4    -18     26     16 |       8     38
            |     15      7     41     21     14 |       1
gfz   uuuuu |     -6     -9     -2     -2      9 |      10     32
            |      1      6     11     15     11 |       1
igr   xxxxx |     -3     -3      7      3     -7 |       9     36
            |      7      5     12     40     11 |       3
jpl   uuuuu |     -1     15      1      7    -17 |     -29     54
            |      5      9     25     15     18 |       4
ngs   uuuuu |    -26    -13     -5   -117     -8 |      18     58
            |     11     12     40     41     31 |       3
sio   uuuuu |     15    -12      1     -6    -33 |     -33     46
            |      7      6      5     11     22 |       4
                                                                               
Table 7: Earth Orientation Parameters daily summary.                           
                                                                               
         Daily Centre ERP, ERP Rates and LOD differences with respect to       
         IGS combined values.                                                  
                                                                               
         Xpole,Xrt: x pole and x pole rate (10**-5")                           
         Ypole,Yrt: y pole and y pole rate (10**-5"/day)                       
         LOD: Length Of Day (us)                                               
                                                                               
         AC LOD BIAS: 21-day mean LOD bias with respect to Bulletin A (us)     
         AC LOD BIAS RMS: RMS of AC LOD BIAS (us)                              
                                                                               
         FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
               for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 7.0949.0   GPS week: 0949   Day: 0   MJD: 50887.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -3     22    -14      0     -7 |     -18     30
emr   uuuuu |     58    -28     78    -27      6 |       1     37
esa   uuuuu |    -17     -4    -13     31     21 |       7     39
gfz   uuuuu |     -6     -1      6     -3    -12 |       9     32
igr   xxxxx |    -18    -10     10    -47    -20 |      12     36
jpl   uuuuu |      2      9    -28     30     11 |     -25     52
ngs   uuuuu |    -40    -20     75   -151     14 |      23     59
sio   uuuuu |      7    -18     -7      1    -12 |     -29     42

Table 7.0949.1   GPS week: 0949   Day: 1   MJD: 50888.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -17     12      9    -13     -6 |     -20     31
emr   uuuuu |     54    -21    105     37     14 |       2     37
esa   uuuuu |      2      2    -23     24     28 |       7     39
gfz   uuuuu |     -6     -8      1     -1     14 |       9     32
igr   xxxxx |      3     -4     16     -6      1 |      10     37
jpl   uuuuu |     10     19    -27      8    -28 |     -26     52
ngs   uuuuu |    -30    -16    -47    -71    -37 |      22     58
sio   uuuuu |      7    -20      6     -5    -26 |     -29     42

Table 7.0949.2   GPS week: 0949   Day: 2   MJD: 50889.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |     -8     11    -11     -1     -7 |     -21     32
emr   uuuuu |     42    -19     36     58     -4 |       3     37
esa   uuuuu |     -9      2     40      7     33 |       7     39
gfz   uuuuu |     -8     -6     -7     -5      7 |       9     32
igr   xxxxx |      1     -3      2    -15    -18 |      10     37
jpl   uuuuu |     -6     22    -12     15    -20 |     -28     54
ngs   uuuuu |    -36    -22    -32   -166    -12 |      17     57
sio   uuuuu |     21    -15     -5      2    -17 |     -31     45

Table 7.0949.3   GPS week: 0949   Day: 3   MJD: 50890.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -24      9      0    -16     -2 |     -23     33
emr   uuuuu |     35    -29     66     35     26 |       0     36
esa   uuuuu |     20      5    -78     69      0 |       9     39
gfz   uuuuu |     -6    -17     14     14     17 |      10     32
igr   xxxxx |      1     -2     27    -24    -20 |      10     36
jpl   uuuuu |     -1     28     12    -19    -28 |     -29     55
ngs   uuuuu |    -12    -29      8   -127    -58 |      17     57
sio   uuuuu |     12    -11      6     -7    -16 |     -32     46

Table 7.0949.4   GPS week: 0949   Day: 4   MJD: 50891.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -12     -6     15     -3    -13 |     -24     34
emr   uuuuu |     50    -28     -7     63     22 |       0     36
esa   uuuuu |     -1     18    -40     11      5 |       9     39
gfz   uuuuu |     -4     -6    -12     -7     25 |      11     32
igr   xxxxx |     -3      2     -5     74      2 |       7     36
jpl   uuuuu |     -6     13     41      5    -23 |     -31     56
ngs   uuuuu |    -24      2    -18   -131     22 |      15     58
sio   uuuuu |     18    -11      4      5    -70 |     -33     46

Table 7.0949.5   GPS week: 0949   Day: 5   MJD: 50892.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |      0     12     -2     21    -20 |     -25     34
emr   uuuuu |     42    -18     86     42     22 |      -1     34
esa   uuuuu |    -24      4    -42     22     -2 |       8     37
gfz   uuuuu |     -7    -18      2    -28      5 |      11     32
igr   xxxxx |     -7      5      5     34      1 |       6     34
jpl   uuuuu |     -2     13      4     14      4 |     -35     56
ngs   uuuuu |    -13     -6     -5   -118     25 |      16     59
sio   uuuuu |     26     -2      0     -6    -33 |     -36     49

Table 7.0949.6   GPS week: 0949   Day: 6   MJD: 50893.5
                                                     AC LOD   AC LOD
CENT  FLAG  |  Xpole  Ypole    Xrt    Yrt    LOD |    BIAS  BIAS RMS  
------------------------------------------------------------------------
cod   uuuuu |    -21     24     -6    -27    -10 |     -25     35
emr   uuuuu |     46    -36    -21     65     21 |      -1     33
esa   uuuuu |      9      1     27     18     25 |       8     37
gfz   uuuuu |     -4     -9    -16     19      9 |      12     32
igr   xxxxx |     -1     -8     -5      4      2 |       4     32
jpl   uuuuu |     -1      1     14     -3    -37 |     -32     53
ngs   uuuuu |    -24     -2    -16    -53     -5 |      18     60
sio   uuuuu |     17     -6      0    -29    -58 |     -38     51

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