[IGSREPORT-19211] Wk 1610 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Dec 2 06:21:53 PST 2010


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1610   (Nov 14, 2010 - Nov 20, 2010)

Contacts: J. Ray       (jim.ray at noaa.gov),
          J. Griffiths (jake.griffiths at noaa.gov)


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. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. 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
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. 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 Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data. 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  [distance unit],

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 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 (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

  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:

igs1610[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1610[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1610[0-6].cls  IGS GPS clock combination summary report.
igs16107.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16107.sum      Complete report.

    
REMARKS concerning the IGS Orbit Combination:                                  
---------------------------------------------

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, 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.
    Starting week 1582, a new solution from CNES/GRGS (GRG) is included with
    weight except for the clock and LOD combinations.

 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. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  ALL   | 1
                0  |  COD   | 22 WTZR DGAR
                0  |  EMR   | 3 WTZR
                0  |  ESA   | MATE WTZR
                0  |  GFZ   | 3 17 AUCK CAS1 DGAR KERG MDVJ SCUB UNSA
                0  |  GRG   | AMC2 DGAR POTS
                0  |  JPL   | 22 32
                0  |  MIT   | 3 3 22 USNO USNO
                1  |  ALL   | 1 1
                1  |  COD   | 22 22 ALGO
                1  |  EMR   | 32 21 32 WTZR WTZR
                1  |  ESA   | 21 KERG
                1  |  GFZ   | 22 MAC1 UNSA
                1  |  GRG   | AMC2 DGAR
                1  |  JPL   | 21 22 32
                1  |  MIT   | 22 21 22 ALGO DAV1 KHAJ MAW1 ALGO BRUS KHAJ MAW1
                1  |  MIT   | SYDN
                2  |  ALL   | 1
                2  |  COD   | 22 22 CONZ ALBH ALRT CONZ DGAR GUAT WILL XMIS
                2  |  EMR   | HARB WTZR HARB WTZR
                2  |  ESA   | UNSA
                2  |  GFZ   | CAS1 DGAR FAA1
                2  |  GRG   | ADIS DAV1 DGAR
                2  |  JPL   | 22 32
                2  |  MIT   | 22 22 DAV1 ALIC
                3  |  ALL   | 27
                3  |  COD   | 22 22 CHUR DGAR
                3  |  EMR   | 32 VILL WTZR VILL WTZR
                3  |  ESA   | SUTH UNSA
                3  |  GFZ   | BAKO CAS1 CRO1 DGAR MDVJ SCH2 SCUB SFER WHIT
                3  |  GRG   | AMC2 DGAR
                3  |  JPL   | 22 32 MCM4
                3  |  MIT   | 22 31 22 31 KELY TIDB
                4  |  COD   | 22 22 ALGO COCO DGAR
                4  |  EMR   | 32 10 32 WTZR WTZR
                4  |  ESA   | MCM4 SUTH
                4  |  GFZ   | CAS1 CRO1 MDVJ SCUB
                4  |  GRG   | ADIS DAV1 DGAR THTI
                4  |  JPL   | 32 ALGO
                4  |  MIT   | 22 9 22 ALGO ALGO
                5  |  ALL   | 1
                5  |  COD   | 22 32 22 DGAR
                5  |  EMR   | WTZR WTZR
                5  |  ESA   | 32 SUTH UNSA
                5  |  GFZ   | 17 CRO1 FAA1 MATE ONSA SCUB SFER THTI
                5  |  GRG   | ADIS DAV1 DGAR
                5  |  JPL   | 22 32 TIDB
                5  |  MIT   | 22 22 DAV1
                6  |  COD   | 22 22 DAV1 DGAR HOB2
                6  |  EMR   | 32 WTZR WTZR
                6  |  ESA   | KERG SUTH
                6  |  GFZ   | CAS1 DGAR HOB2 KARR MAW1 MDVJ SCUB UNSA
                6  |  GRG   | ADIS DGAR USNO
                6  |  JPL   | 22 32
                6  |  MIT   | 12 22 12 22 32 DAV1 MAW1 MAW1 NKLG

 5. The following table lists all maneuvered satellites for this week.
    The solutions from COD and ESA, which modeled the maneuver, are used
    that day for combination. An associated accuracy code of 0 (unknown) 
    is given if only one AC is left (no redundancy). For the long arc  
    evaluation the arc is split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G27 | 2010_11_16 | 2010141 
               G31 | 2010_11_19 | 2010142 

 6. 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  |  GFZ   |   1
                5  |  GFZ   |   1
                6  |  GRG   |  31

 7. Velocity changes were estimated to alleviate the effects of modeling
    problems, experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G08 |  2 |    |    |    |    |    |    |

 8. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) all IGS products,
    including the IGS combined orbits, are based on the IGS realization of the
    ITRF2005 reference frame (IGS05).   For more information see IGSMAIL #5447.

 9. Small rotations were applied to all the AC orbit and ERP values in order
    to align them to the IGS05 frame. These rotations were estimated in the IGS
    SINEX combination process, performed by the IGS Reference Frame Coordinator
    at the Institut Geographique National (IGN), and are based on the common
    stations between the individual AC SINEX solutions and the IGS05.snx SINEX
    frame. The estimated 7 transformations, from which only the 3 rotations are
    applied to the orbit and ERP values, are:
    
            |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |     .6    1.3     .7       0    -21    -14     .04
       EMR  |    4.3    6.9    3.2     -11    -21      9     .36
       ESA  |    8.3    4.7   -3.9      99   -159    -23    -.12
       GFZ  |     .6    1.0    -.4      23    -31    -21     .20
       GRG  |    3.0   11.0    1.1      40     45    -96     .28
       JPL  |   -3.7    8.2    7.2      15    -46     -5     .25
       MIT  |    -.5    -.8   -2.9       2     13    -31     .03
       NGS  |    2.2    2.7   -5.3      40    -75      4    -.06
       SIO  |    1.0    5.0   -4.9      69    -31    -61     .31


10. Starting on 22-Oct-2000 (GPS Week 1085-0; mjd=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. 
    The navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

11. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and
    ERPs as generated by IGN. For more information see IGSMAIL #2750.
    Because of this change in alignment Table 2 has been enhanced with one 
    additional line per AC. This additional line shows the X- and Y-rotations 
    which were applied to each of the AC orbits prior to the orbit combination. 
    These rotations are based on the difference between the individual AC ERP 
    estimates and the IGS reference frame ERP product. The total rotation of
    the individual AC orbits w.r.t. the IGS combined orbit is the sum of the
    values in the two lines of Table 2 plus the reference frame rotation.

12. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) the absolute antenna
    model is introduced (IGSMAIL #5272). The antenna phase center offsets and
    phase center variations are given in the file:
        ftp://igscb.jpl.nasa.gov/pub/station/general/igs05.atx

    
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 1.1610.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1610.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 2.1610.[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 3.1610.[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 4.1307). The fifth and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1610.0-6).

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 1610 summary.                       (Nov 14, 2010 - Nov 20, 2010)

Table 1.1610.a   GPS week: 1610   MJD: 55514.000-55520.000

         Mean and standard deviations of transformation parameters to the 
         combined IGS orbit.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         STA  - Mean number of stations in the daily solutions.
   
CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     2    61   -14   -12  -.24   10    9 |    -457     106     15     70
        |    0     0     1    14    18     5   .02           |     499     761
emr   89|    1     1     4    70   -33    22   .44   19   19 |    1723     -79     13    106
        |    1     1     3    21    28    15   .02           |     912    1289
esa  143|    1     0    -1  -109   113   -28   .22    9    9 |    -272     346     14    128
        |    0     1     1    13    18     7   .06           |     496    1693
gfz  189|   -1     0    -1    -9    18     0  -.15   12   11 |      11      81     23    110
        |    0     0     1    74    28    10   .04           |     225     185
grg  128|    2     2    -3   -30  -159   -26   .68   17   16 |   19027  -14273     50    285
        |    1     1     2    25    20    14   .03           |   53599   47569
igr  n/a|    0     0     0    64   -20    25  -.06    6    5 |   17931    -873     18     75
        |    0     0     0    32    25    19   .02           |    2391    1498
jpl  136|    0     0     2    15    47    43   .47   18   18 |    4584      96     18    122
        |    0     1     2    21    12    82   .03           |     985    1319
mit  266|    0    -2    -4    61  -142    33  -.41   14   12 |    -171      77     22    156
        |    0     0     0    19    27    15   .03           |     257     342
ngs  215|   -1     0     0     4    57    18  -.23   11    8 |  -23321   21456   1995   3609
        |    1     0     1    40    22    19   .03           |   60546   56897
sio  250|   -1     3     3   -53   -31   -54  -.16   20   19 |     ---     ---    ---    ---
        |    0     0     1    24    21    19   .04           |     ---     ---


Table 1.1610.b   GPS week : 1610   MJD: 55514.000-55520.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |   28   23    0   29    0   16    0 |
   2  |    5    5    7    5    5    6    6 |
   3  |    4    4    4    4    4    4    4 |
   4  |    4    4    6    4    5    4    4 |
   5  |    4    4    5    5    5    5    6 |
   6  |    4    4    3    3    3    4    4 |
   7  |    6    4    5    4    5    4    4 |
   8  |    8    7    6    6    6    6    6 |
   9  |    5    4    5    5    4    5    5 |
  10  |    6    6    6    7    7    7    8 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    4    4    5    5    4    5    5 |
  14  |    5    5    4    5    4    5    5 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    5    5    5    5    6 |
  17  |    6    5    4    6    5    7    6 |
  18  |    5    6    5    5    5    6    5 |
  19  |    4    4    4    4    4    4    4 |
  20  |    5    5    5    5    4    5    6 |
  21  |    5    5    5    4    5    5    5 |
  22  |    5    4    4    4    4    5    5 |
  23  |    5    5    5    5    5    5    5 |
  24  |    4    4    3    4    4    4    5 |
  25  |    5    5    5    5    5    6    7 |
  26  |    4    4    4    4    4    4    5 |
  27  |    5    4    0   10    5    5    4 |
  28  |    5    4    5    5    5    4    5 |
  29  |    4    4    4    5    4    4    4 |
  30  |    4    4    4    4    4    5    4 |
  31  |    6    5    5    4    5    9    6 |
  32  |    5    6    7    7    7    7    8 |



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1610.0   GPS week: 1610   Day: 0   MJD: 55514.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     3    88   -25   -18  -.23   10    8 |    -895     843     15     64
        |                     24   -80                       |
emr   89|    0     5     2    82   -16    -9   .46   20   20 |     719    2593     17    110
        |                     -6   -60                       |
esa  143|    1     0     0  -139   114   -40   .20    9    9 |    -431      15     17    130
        |                     23   -56                       |
gfz  189|    0     0     0   -61     0    -3  -.12   11   10 |      34     183     23    111
        |                    -79   -60                       |
grg  128|    0     1     0   -52  -136   -18   .67   16   15 |    -412     692     50    267
        |                     75   -90                       |
igr  n/a|    0     0     0    92   -32    14  -.04    5    5 |   19020    2160     19     75
        |                    -67   -41                       |
jpl  136|    1     1     0    32    47   145   .49   19   18 |    3037    2791     20    103
        |                     38   -55                       |
mit  266|    0    -2    -4    57  -164    14  -.44   13   12 |    -572     691     24    161
        |                      2    37                       |
ngs  215|    0     0     0    62    86    24  -.24   10    7 |    -815     694   1991   3659
        |                   -125    30                       |
sio  250|    0     3     3   -76   -42   -60  -.12   23   20 |     ---     ---    ---    ---
        |                     49    45                       |

Table 2.1610.1   GPS week: 1610   Day: 1   MJD: 55515.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     4    63   -29    -6  -.23   10    9 |    -650     391     14     67
        |                     73   -27                       |
emr   89|    2     1     1    78    -2    23   .43   20   19 |    2295     526     13    105
        |                      6   -19                       |
esa  143|    1     0     0  -102   108   -32   .21    9    8 |    -416    -665     15    125
        |                     49   -27                       |
gfz  189|   -1     0    -1  -119    -8    -8  -.18   11   11 |    -323     227     23    114
        |                    -15   -48                       |
grg  128|    4     4    -1    -8  -162   -30   .70   16   15 |     154    -215     61    302
        |                     35   -44                       |
igr  n/a|    0     0     0    88    -6    15  -.06    5    5 |   20212     -74     18     68
        |                    -25   -45                       |
jpl  136|    0     0     1    -2    40   173   .50   19   19 |    4871     688     19    121
        |                    108   -52                       |
mit  266|    0    -3    -5    93   -93     7  -.40   12   10 |     -65      22     21    172
        |                     -9     9                       |
ngs  215|   -1    -1     0    38    67   -14  -.23   10    7 |    -609     232   2254   3881
        |                    -90     3                       |
sio  250|    0     2     0   -20   -20   -80  -.16   21   17 |     ---     ---    ---    ---
        |                      8    64                       |

Table 2.1610.2   GPS week: 1610   Day: 2   MJD: 55516.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|   -1     0     3    62   -21   -22  -.22   10    9 |    -844     320     18     72
        |                     29   -19                       |
emr   89|    0     0     0    91   -23    37   .46   19   19 |    2852    -832     13     86
        |                    -21   -19                       |
esa  143|    1    -2    -1  -104   144   -24   .30   11   12 |    -918    2987     17    126
        |                     20    -6                       |
gfz  189|    0     0     0   -48    38    18  -.10   11   13 |     -62      34     24    114
        |                    -82   -24                       |
grg  128|    2     2    -4     0  -189   -56   .62   18   19 |   -6835   20225     41    288
        |                     12   -10                       |
igr  n/a|   -1     0     0   103   -18    19  -.04    6    6 |   20103   -1462     17     74
        |                    -67   -45                       |
jpl  136|    0     0     2    12    44    38   .51   18   18 |    5560    -355     17    127
        |                     39   -68                       |
mit  266|    0    -2    -4    36  -136    39  -.39   12   10 |    -225     185     23    153
        |                      5    30                       |
ngs  215|   -1     1     0     7    50     7  -.28   11    9 |    -660     -65   1827   3494
        |                    -75   -34                       |
sio  250|   -2     2     2   -73    -8   -59  -.11   19   18 |     ---     ---    ---    ---
        |                     23    36                       |

Table 2.1610.3   GPS week: 1610   Day: 3   MJD: 55517.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     3    44     0   -11  -.23    9    9 |    -539     413     16     85
        |                     74   -54                       |
emr   89|    2     0     4    85    -5    23   .44   19   19 |    2654    -999     15    130
        |                    -19   -34                       |
esa  143|    2     0     0   -99    86   -28   .23    9    9 |      -3    -560     12    133
        |                     30   -29                       |
gfz  189|    0     1    -1    40    10   -15  -.12   12   11 |     -84     161     23    106
        |                    -91   -23                       |
grg  128|    2     1    -3   -53  -144   -15   .69   17   15 |  140442 -120799     55    341
        |                     78   -46                       |
igr  n/a|    0     0     0    33   -20    56  -.07    6    5 |   19307   -2019     19     91
        |                    -58   -65                       |
jpl  136|    0    -1     1   -15    53     3   .51   19   19 |    5739    -880     19    126
        |                     37   -81                       |
mit  266|    0    -2    -3    70  -121    41  -.39   12   10 |     -25      67     21    142
        |                      4    25                       |
ngs  215|   -2     0    -1   -18    39    42  -.26   11    7 | -160624  150481   1798   3298
        |                     14   -17                       |
sio  250|   -1     3     4   -33   -31   -69  -.16   20   19 |     ---     ---    ---    ---
        |                     22    47                       |

Table 2.1610.4   GPS week: 1610   Day: 4   MJD: 55518.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    1     0     1    67    12   -10  -.26   10    9 |     423   -1047     17     73
        |                     17   -48                       |
emr   89|    3     2     1    65   -55    22   .43   18   18 |    1799    -817     11    101
        |                     -3    13                       |
esa  143|    0    -2    -4  -109   101   -32   .27   10   10 |     577   -2097     16    128
        |                     39     4                       |
gfz  189|   -2     0     0   -23    -5     0  -.19    9    9 |     232     -50     22    108
        |                    -47   -43                       |
grg  128|    1     3    -3   -27  -143   -24   .71   17   16 |     465    -613     46    242
        |                     39   -90                       |
igr  n/a|    0     0     0    43   -21     0  -.08    6    6 |   17466   -2136     17     77
        |                    -32   -71                       |
jpl  136|    1     0     3    38    64   -17   .42   18   18 |    4995   -1049     19    127
        |                    -19   -43                       |
mit  266|    0    -1    -3    42  -152    51  -.44   14   11 |     251    -366     21    154
        |                     -1    32                       |
ngs  215|    0     0     2    18    75    35  -.23   12   10 |     307    -990   2042   3537
        |                   -112     5                       |
sio  250|   -1     3     5   -72    -9   -53  -.19   20   18 |     ---     ---    ---    ---
        |                     29    18                       |

Table 2.1610.5   GPS week: 1610   Day: 5   MJD: 55519.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     1    46    -2   -10  -.29    9    9 |      49    -896     15     63
        |                     41   -64                       |
emr   89|    2     0     7    25   -61    28   .43   18   18 |     682    -252     13    109
        |                     47    19                       |
esa  143|    0    -1     0  -103   115   -15   .17   10    9 |     -37    1692     12    118
        |                     37   -32                       |
gfz  189|    0     0    -4    61    22     4  -.16   12   11 |     361    -254     23    111
        |                    -41   -36                       |
grg  128|    1     3    -6   -10  -154   -19   .67   16   17 |    -179    -172     45    284
        |                     68   -94                       |
igr  n/a|   -1     0     0    71    20    45  -.09    6    6 |   15100   -1175     18     61
        |                    -76   -61                       |
jpl  136|    1    -2     6     2    57   -35   .44   17   17 |    3751     -25     18    124
        |                     13   -61                       |
mit  266|   -1    -3    -4    69  -174    41  -.43   18   14 |    -280    -244     22    156
        |                    -11    24                       |
ngs  215|   -2     0     1   -27    63    22  -.21   13    9 |    -109    -761   2043   3949
        |                     15   -14                       |
sio  250|   -1     4     2   -27   -70   -21  -.23   20   20 |     ---     ---    ---    ---
        |                     10    46                       |

Table 2.1610.6   GPS week: 1610   Day: 6   MJD: 55520.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  230|    0     0     1    59   -37    -9  -.24    9    9 |    -744     721     16     66
        |                     60   -21                       |
emr   89|    2     1    11    66   -72    31   .46   20   20 |    1064    -772     15    102
        |                      4    11                       |
esa  143|    2     0    -1  -106   123   -29   .14    9    9 |    -680    1051     14    138
        |                     29   -42                       |
gfz  189|   -2     0    -3    88    69     2  -.15   13   12 |     -81     271     25    111
        |                    -61   -28                       |
grg  128|    2     0    -3   -60  -184   -20   .68   19   17 |    -446     968     57    276
        |                     96   -46                       |
igr  n/a|    0     0     0    19   -64    28  -.07    6    6 |   14315   -1406     18     81
        |                    -17   -27                       |
jpl  136|    1     0     4    37    26     0   .44   18   17 |    4138    -496     19    126
        |                    -56   -73                       |
mit  266|    0    -2    -5    59  -152    35  -.37   18   14 |    -282     187     22    160
        |                    -11    14                       |
ngs  215|   -2     0     0   -54    21     8  -.18   12    7 |    -739     607   2016   3449
        |                    -22    64                       |
sio  250|   -2     5     3   -66   -34   -36  -.19   19   20 |     ---     ---    ---    ---
        |                     27    24                       |

       
       
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 (earth).
         "M"    stands for eclipsing satellites (moon).
         "X"    stands for excluded from the statistics but included in IGS orbit.
         "T"    stands for Total long arc orbit RMS for all satellites.
         "NE"   stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI" stands for median of the centre's satellite RMS.
         "MD"
         Units: mm.

Table 3.1610.0   GPS week: 1610   Day: 0   MJD: 55514.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   25  ---  ---   30  ---  135  ---  ---  ---  ---   27 |    82  ---  ---  101  ---   95  ---  ---  ---  ---    77
   2  |   11   23   10   10   12    4   24    8    9   24    4 |    23   31   21   22   32   19   33   22   16   22    19
   3  |    3   13    9    7    9    6   11   11   11   22    3 |    18   23   20   21   25   18   25   23   21   19    20
   4  |   13   11    7    4    9    3   10   15    9   28    4 |    23   25   29   27   31   25   30   32   22   34    24
   5E |    7   21    8    9   18    6   20   10    7   10    4 |    13   26   16   12   24   14   25   14   18   17    15
   6  |    4   12    8    7   10    6   11   14   11   17    3 |    23   29   25   24   30   23   28   30   25   25    24
   7E |   17   15    9   14   20    6   18   19   10   17    5 |    69   74   69   74   78   71   73   65   68   61    68
   8E |   20   19   15   18   17    5   21   26   19   62    8 |   123  124  130  126  126  125  125  126  122  132   124
   9  |   10   18    6    8   16    8   16   19    8   14    4 |    14   25   16   20   20   17   24   22   19   16    14
  10E |   17   18   10   15   25    5   16   16   14   21    5 |    33   34   31   33   32   31   32   43   33   28    31
  11  |    8   13    9   11   14    5   16    9    9   17    4 |    23   31   26   24   38   22   30   27   22   20    23
  12  |    8   22   12   12   16    6   25   15    9   17    5 |    18   30   23   27   27   20   31   23   22   22    19
  13  |    7   18    7    7   18    5   21   10   11   15    4 |    23   34   24   25   40   22   33   21   22   16    21
  14  |    6   19   10   11   14    5   23   11    9   22    4 |    18   29   26   27   32   19   28   20   22   19    21
  15  |    7   27    9    6   19    6   26   13   10   18    5 |    13   26   19   14   27   12   26   17   15   16    14
  16  |    6   29    8   10   16    6   26   13   10   17    5 |    22   36   25   21   32   20   32   20   22   21    20
  17  |   13   13    7   30   14    6   15    9   10   31    5 |    26   31   32   42   34   31   33   31   34   37    31
  18E |   10   26    9    9   12    6   24   14    9   29    5 |    23   31   23   19   33   19   29   23   20   34    19
  19  |    6   14    9   10    9    6   11    9    6   24    3 |    31   31   30   30   29   29   29   33   31   28    29
  20E |    8   30    7   13   15    5   21   13    6   19    5 |    15   32   20   18   30   15   24   21   12   21    15
  21  |    7   23    9    7   17    4   22   10    7   24    4 |    18   30   18   16   33   17   32   14   18   16    17
  22E |    8   23   13   10   15    5   22   16    6   21    5 |    16   27   23   12   34   17   30   21   20   22    18
  23  |    6   25    8   11   14    4   24   11    9   16    4 |    17   33   20   22   29   16   30   20   14   15    15
  24  |    9   17    6   11   12    3   13    7    9   18    3 |    19   24   17   16   19   16   22   20   15   18    14
 X25  |   15  ---    8    7   17    6  ---   12    8  ---    5 |    29  ---   21   24   34   23  ---   21   23  ---    23
  26  |    6   13    6    6   14    7   12   16   10   26    4 |    18   19   22   18   24   17   19   25   22   29    20
 X27  |   10   22    8    8   14    8  ---   16    9  ---    4 |     9   21   13   12   13   12  ---   15   13  ---    11
  28  |   12   21    9    8   19    6   21   11    6   18    4 |    17   31   25   23   35   18   31   23   20   23    20
 X29  |    7   11    9    8   13    4   14   11    8  ---    3 |    30   30   31   31   32   30   30   34   33  ---    31
  30  |    6   14    8    6   13    4   15    9    8   15    3 |    16   22   18   17   24   16   21   20   17   22    16
  31  |   19   18   10   11   23    6   25   10   12   16    5 |    78   92   85   82   87   79   87   77   89   74    84
  32E |   12   24   10   12   17    6   20   13    7   17    4 |   114  113  109  106  107  114  111  116  114  109   110
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    9   11   16    5   19   13   10   23      |T   31   38   32   33   38   31   38   32   31   32    31
 WRMS |    8   20    9   10   15    5   18   12    7   20      |NE  25   31   25   28   31   25   31   25   24   24    25
 MEDI |    8   18    9   10   15    6   20   12    9   18      |MD  22   30   23   23   32   19   30   23   22   22    20

Table 3.1610.1   GPS week: 1610   Day: 1   MJD: 55515.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   34  ---  ---   54  ---   35  ---   31   40  ---   23 |    50  ---  ---   88  ---   54  ---   24   30  ---    30
   2  |    9   22    7   18   14    5   24   10    7   24    5 |    16   30   19   20   26   15   31   17   13   18    15
   3  |    6    9   10   10   11    5   11    8    9   21    3 |    15   18   15   12   23   15   22   18   16   18    14
   4  |   14   13    7    9    9    3   10   15   10   22    4 |    16   25   22   21   24   17   26   23   16   26    18
   5E |    7   20    7   10   10    5   17    9    8   17    3 |    13   23   15   18   21   11   24   12   15   17    13
   6  |    5   10   10   11    9    6    9   10   11   14    3 |    17   24   21   16   23   20   25   23   20   20    18
   7  |    9   19   10   10   17    7   17    7    7   15    4 |    32   35   32   35   39   33   37   27   33   30    32
   8E |   17   20   11   16   18    5   17   21   17   46    7 |   135  135  135  133  133  135  138  133  135  141   134
   9  |   11   17    7   12   16    6   14   16    8   14    4 |    14   21   15   20   19   14   21   20   17   14    14
  10E |   19   23   13   17   24    6   16   16   15   19    6 |    30   33   26   28   24   25   26   36   32   23    24
  11  |    8   16   10   10   14    4   17   10    7   18    4 |    19   29   17   18   30   17   29   20   17   18    16
  12  |   10   25    9   11   19    4   25   15   13   16    5 |    15   27   16   22   25   16   28   20   22   19    14
  13  |    7   18    9   11   19    4   19    8    9   14    4 |    20   30   25   23   35   18   31   18   18   15    18
  14  |    6   21    9   10   18    7   24    9   10   14    4 |    15   27   21   18   30   17   28   16   18   16    16
  15  |    8   28    8    6   20    6   25   12    7   17    5 |    16   27   17   17   29   13   28   17   14   17    14
  16  |    8   22    9   11   17    6   26   13    8   18    5 |    19   31   21   16   30   19   33   18   20   20    17
  17  |    8   14    9   11   13    6   12    9   13   32    4 |    16   19   24   29   20   20   24   16   23   27    19
  18E |    8   27   12   11   16    7   26   11    9   37    5 |    51   58   53   57   51   51   56   53   54   54    54
  19  |    8   12    9   10    9    5    9    9   12   22    3 |    19   18   12   14   16   15   18   20   18   15    14
  20E |    7   21    9   12   17    4   21   11    9   15    4 |    20   31   23   23   29   20   31   22   21   21    19
  21  |    8   21    6    9   18    5   24    8    4   21    4 |    16   29   16   12   30   14   31   13   13   17    14
  22E |    9   17    7   10   14    7   19   16    7   17    4 |    28   32   31   21   33   27   37   27   26   26    25
  23  |    6   22   11   14   14    4   22   12    8   16    4 |    15   28   20   20   23   12   28   17   10   14    12
 X24  |    9   15   12    8   14    5  ---   10    8   20    4 |    16   19   15   13   17   15  ---   17   18   18    12
 X25  |   14  ---    5    8   16    6  ---   10    7  ---    4 |    20  ---   18   21   29   18  ---   16   20  ---    17
  26  |    6   14    4    8   11    5    9   13    5   26    3 |    22   22   19   20   24   19   21   27   24   31    20
  27  |   10   17    9   11   14    7   14   16    7   15    4 |    11   15   12   11   12   11   10   16   10    7    10
  28  |   13   19    8    9   17    3   20    9    7   15    4 |    19   27   24   19   32   17   31   19   20   19    18
 X29  |   10   12    6   12   13    4   15   10    5  ---    3 |    19   16   16   19   13   14   17   18   16  ---    15
  30  |    7   13    7   10   12    4   12    9    7   14    3 |    16   21   18   15   25   13   23   17   13   20    14
  31  |   16   16   10   15   19    6   21   13    9   14    5 |    31   37   33   39   40   30   35   27   32   26    31
  32E |   15   33   10   13   19    5   19   15   12   17    5 |   116  122  116  123  121  119  116  121  115  117   117
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    9   11   16    5   19   12   10   21      |T   27   33   27   30   33   26   34   27   27   28    25
 WRMS |    9   19    8   11   15    5   19   10    7   17      |NE  18   24   18   21   25   18   25   19   18   18    16
 MEDI |    8   18    9   11   16    5   17   10    8   17      |MD  19   27   20   20   26   17   28   19   18   19    17

Table 3.1610.2   GPS week: 1610   Day: 2   MJD: 55516.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6  ---  ---  380  ---   57  ---  ---  ---  ---    0 |    27  ---  ---  314  ---  118  ---  ---  ---  ---    26
   2  |   13   26   13   25   14    7   26   15    9   26    6 |    16   31   23   24   28   16   32   23   15   17    16
   3  |    7   10    9    8   15    8    9   12    6   19    3 |    14   23   19   21   25   18   21   23   18   20    18
   4  |   14   13   13   26    9    6    8   18   11   22    5 |    22   26   31   32   31   24   29   32   25   31    24
   5E |    9   19   10   12   17    4   19   14   14   18    5 |    10   23   16   15   21   10   24   13   12   16     9
   6  |    5   11    8    7   11    7    9   11    6   11    3 |    19   29   28   27   30   23   27   28   24   24    25
   7  |   10   22   15   10   25    4   17    7    8   17    5 |    21   31   26   21   32   19   23   18   23   21    20
   8E |   15   17   11   11   20    6   16   22   12   33    6 |    85   88   81   87   80   87   85   96   83   93    86
   9  |   12   16   10   10   15    7   16   14   14   15    4 |    12   24   22   17   17   16   22   20   23   15    15
  10E |   16   20   18   11   23    6   16   17   22   19    6 |    22   23   25   22   28   19   24   31   30   15    18
  11  |    6   15    6    8   15    5   19    9    9   17    4 |    23   30   20   21   30   22   27   26   23   20    19
  12  |    9   21   13   12   16    4   22   11    9   14    4 |    17   28   28   25   23   18   27   21   19   20    18
  13  |    7   21   11   11   28    4   18    8    9   17    4 |    18   31   22   24   36   17   28   15   15   17    17
  14  |    6   22    7   11   19    5   21    8    7   14    4 |    17   28   22   23   31   18   29   19   19   16    19
  15  |    9   21   13    9   21    4   22   12   13   16    5 |    13   24   21   17   29   11   25   16   14   15    12
  16  |    7   28   10   11   14    5   26   13   10   16    5 |    18   31   21   17   30   17   33   19   20   21    18
  17  |    8   11   11    9   16    6   12    8    9   29    4 |    23   25   25   37   29   25   26   23   26   34    25
  18E |   10   20   10    8   16    5   22    9    9   13    4 |    30   38   38   34   39   34   38   30   35   42    34
  19  |    5   13    7   10   13    7   11    8    8   20    3 |    22   24   21   22   23   21   22   24   23   21    20
  20E |    8   26   11    8   20    4   21   10   10   17    4 |    24   37   24   21   30   25   31   26   20   26    21
  21  |    8   19   11    9   17    5   21    9    8   20    4 |    20   30   21   21   27   18   31   17   13   17    16
  22E |    7   19   11    8   15    5   18    9    6   15    4 |    22   32   29   23   31   22   34   25   25   25    24
  23  |    7   22   12   14   24    5   22   11    7   16    5 |    14   27   21   21   27   15   27   17   11   14    13
  24  |    7   11    4    5   14    6   11    9    8   17    3 |    13   17   15   13   17   16   18   16   12   19    12
 X25  |   12  ---    7    7   16    6  ---   10    8  ---    4 |    23  ---   22   23   27   22  ---   19   20  ---    19
  26  |    6   11    7    7   13    6    9   12   11   27    4 |    16   17   16   17   25   14   19   19   17   30    14
 X27  |    6  ---  ---  ---  ---   21  ---  ---  ---  ---    0 |    22  ---  ---  ---  ---   34  ---  ---  ---  ---    21
  28  |   12   19    7    9   19    6   19   11    9   16    4 |    15   29   20   25   33   18   28   25   18   22    19
 X29  |    6   11   12   13   15    5   14   12    6  ---    4 |    21   25   22   27   22   21   22   25   22  ---    21
  30  |    6   15   10    9   14    4   13   10    6   15    3 |    14   25   18   22   23   17   22   19   17   21    15
  31  |   10   19   16    9   25    5   17    8   11    5    4 |    23   30   28   17   37   18   26   20   21   18    19
  32E |   16   30    9    9   24    7   20   22   19   17    6 |    82   83   84   82   84   82   83   79   85   80    81
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19   11   11   18    6   18   12   11   19      |T   23   31   26   35   31   26   30   26   24   26    22
 WRMS |    9   19   12   13   19    6   18   10    9   18      |NE  18   26   22   35   27   23   25   21   18   20    18
 MEDI |    8   19   10    9   16    5   18   11    9   17      |MD  20   28   22   22   29   18   27   21   20   20    19

Table 3.1610.3   GPS week: 1610   Day: 3   MJD: 55517.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   24  ---  ---   35  ---  391  ---  ---  ---  ---   29 |    23  ---  ---   85  ---  286  ---  ---  ---  ---    35
   2  |   10   23   10   14   15    7   22   11   10   25    5 |    15   28   21   17   29   14   30   18   13   18    15
   3  |    7   12    7    9   12    6   12   10    8   21    3 |    16   25   21   21   26   18   28   23   20   20    20
   4  |   12   12    7    8   12    6   10   17   11   19    4 |    23   25   30   28   33   24   28   29   26   27    25
   5E |    8   17    9   11   18    6   19   11    9   17    4 |    12   23   16   14   23   15   28   16   12   20    13
   6  |    7   10    6   10   10    5   11   10    9   14    3 |    20   29   25   24   30   23   31   27   26   23    25
   7  |    9   17    8   11   16    5   15    7    8   17    4 |    28   37   31   33   36   28   32   27   23   30    28
   8E |   15   24    8   14   17    5   18   17   11   29    5 |   127  132  130  131  128  127  133  132  124  133   128
   9  |   11   19    5   10   13    6   17   14   13   14    4 |    14   27   16   17   20   16   25   22   21   19    15
  10E |   15   24   15   15   25    7   17   22   22   21    6 |    27   33   28   29   30   25   25   36   32   22    22
  11  |    8   15    9   11   15    5   18    8    7   18    4 |    26   33   31   28   36   25   33   29   28   23    27
  12  |    9   21    7   11   17    7   28   10   14   13    4 |    18   31   24   21   26   19   32   23   21   22    20
  13  |    7   21    9    9   23    7   19   10   11   17    4 |    28   39   31   30   41   27   38   25   23   27    28
  14  |    9   20   12   10   18    6   23    8   10   15    4 |    15   29   26   22   29   16   29   18   24   18    20
  15  |    7   22    7    7   19    7   24   12   13   18    4 |    14   24   16   16   31   12   26   17   11   17    14
  16  |    5   27   11    9   15    7   24   13    8   19    4 |    19   31   22   17   29   19   30   20   18   23    19
  17  |   13   11    4   30   17    7   17    9    9   28    5 |    25   29   31   45   33   30   30   30   32   35    30
  18E |    7   20   10   14   15    4   25   12   10   31    5 |    36   45   36   40   38   36   45   38   44   30    40
  19  |    7   11    8    9   10    3   12   10    7   21    3 |    25   27   28   29   27   28   29   31   32   26    27
  20E |    7   18   13   11   20    5   23    9    7   20    4 |    16   29   19   21   30   16   29   22   15   22    18
  21  |    8   18    6   13   16    6   19   10    6   20    4 |    18   28   20   19   28   15   31   17   15   19    18
  22E |    7   15    7   12   17    4   20   10    7   13    4 |    19   24   24   15   34   16   30   17   16   17    18
  23  |    7   23   11   10   18    6   21   12   10   17    4 |    17   32   21   22   26   16   30   19   14   18    17
  24  |    9   13    6    9   13    3   13   11    9   20    3 |    14   21   19   18   22   16   20   19   20   19    15
 X25  |   14  ---   10   11   17    7  ---   10   10  ---    5 |    24  ---   21   23   27   22  ---   23   23  ---    22
  26  |    7   12    9   10   11    7    8   12   12   27    4 |    17   20   21   17   23   16   21   24   16   29    18
 X27  |    8  ---  ---   11  ---   12  ---  ---  ---  ---   10 |    13  ---  ---   17  ---   16  ---  ---  ---  ---    14
  28  |   12   20    7   15   18    4   22   10    6   18    4 |    19   31   22   28   35   19   33   22   21   27    21
 X29  |    5   12   11   25   17   13   17   10    9  ---    5 |    25   28   29   32   31   29   27   28   29  ---    26
  30  |    7   14    9    8   16    5   11    9    8   19    3 |    18   22   21   19   28   17   23   20   16   24    18
  31  |    8   15   13   11   21    5   21    8    7    8    4 |    17   26   26   20   33   17   27   20   20   18    19
  32E |   14   29    9   13   23    6   19   27   20   17    6 |    97   99   95   97  100   98   96  101  100   96    97
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    9   12   17    6   19   12   11   20      |T   25   34   30   31   35   34   35   29   27   29    27
 WRMS |    9   19    9   11   15    5   19   10    7   19      |NE  19   27   23   25   29   30   28   22   21   22    21
 MEDI |    8   18    9   11   17    6   19   10    9   18      |MD  19   29   24   22   30   19   30   23   21   22    20

Table 3.1610.4   GPS week: 1610   Day: 4   MJD: 55518.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    5  ---  ---  ---  ---   82  ---  ---  ---  ---    0 |    27  ---  ---  ---  ---  119  ---  ---  ---  ---    24
   2  |   10   23   12   10   14    4   22   14   11   27    5 |    12   27   21   14   29   14   28   18   13   18    13
   3  |    7   10    7    8   13    6   11    9   10   21    3 |    12   21   21   16   25   15   21   18   18   18    17
   4  |   13   10    8   12   11    6   10   18   13   19    4 |    24   27   32   28   32   26   28   27   23   24    25
   5E |    8   17    8    9   24    6   19   15   14   16    4 |    12   22   17   12   23   12   23   14   13   15    12
   6  |    7    8    7    9   14    5   12    9   10   13    3 |    17   26   26   20   31   19   27   22   23   22    22
   7  |   10   16   13    9   17    5   19    8   11   20    4 |    20   28   25   18   29   17   25   16   20   14    17
   8  |   14   20    6    9   18    6   17   17   16   28    5 |    76   80   79   77   81   79   82   75   77   73    76
   9  |    9   18    9    8   15    7   14   16    7   15    4 |    14   24   19   17   17   16   21   19   20   14    16
  10E |   20   20   12   11   27    6   17   26   27   25    7 |    23   32   21   26   28   24   26   41   34   28    23
  11  |    9   14    8    8   15    4   16   10   10   15    3 |    22   32   27   24   31   22   28   24   23   18    23
  12  |   11   19    9   11   16    3   23   12    7   16    4 |    17   26   20   25   26   20   29   23   23   23    20
  13  |    7   17    8    7   22    8   19   10   11   16    4 |    19   30   22   23   36   22   28   16   25   13    18
  14  |    8   15    9    7   16    4   20    9    9   15    4 |    16   28   26   19   31   18   27   20   21   19    20
  15  |   11   22   11    7   22    5   24   15   11   20    5 |    18   25   19   14   33   14   26   20   15   20    16
  16  |    8   25   13    8   17    6   28   13    6   21    5 |    18   31   23   20   30   19   32   19   18   23    19
  17  |   11   10   10   14   18    6   14    9   14   29    5 |    25   30   30   40   29   29   30   28   32   32    30
  18E |    9   25   11   10   14    4   22   10   10   20    5 |    28   37   32   27   38   27   36   29   29   41    29
  19  |    8   10    7    6   10    4   10   10   10   24    3 |    22   22   28   27   23   22   20   28   28   21    24
  20E |    8   20    8   12   15    6   20   10    7   16    4 |    15   29   20   20   27   18   28   19   16   18    17
  21  |    8   18    7    8   17    5   23   10   11   21    4 |    15   29   18   12   29   15   30   12   13   18    15
  22E |    8   16   11    7   16    3   19   10    9   13    4 |    17   26   23   16   33   17   30   19   22   22    20
  23  |    7   20    9   10   15    8   22   11    9   18    4 |    15   29   19   20   25   17   26   15   15   13    14
  24  |   10   13   10    8   13    4    9   12   10   18    4 |    14   21   22   17   20   17   17   18   17   19    15
 X25  |   14  ---    9    7   14    5  ---    9    6  ---    4 |    30  ---   25   23   30   25  ---   24   26  ---    25
  26  |    7   13    7    7   13    6   12   12    9   26    4 |    13   18   15   14   24   12   20   20   15   29    15
 X27  |   10   17    7    8   10    8   14   18   11  ---    4 |    12   20   10   11   16   11   16   18   15  ---    13
 X28  |   11   19    5   10   18    5   19    9   11  ---    4 |    17   31   23   22   35   20   30   20   22  ---    21
 X29  |    7   11   11    6   13    6   14   11    9  ---    3 |    20   26   25   25   26   23   20   25   23  ---    22
  30  |    9   13    7    8   12    4   13   11    8   16    3 |    16   26   19   17   25   17   24   18   20   24    18
  31  |   13   17   13    8   17    5   21    9    8    9    4 |    18   30   25   19   30   14   26   15   23   20    19
  32E |   18   26   12   10   21    8   23   30   23   15    7 |    64   73   66   68   66   69   69   83   72   70    68
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18   10    9   17    6   18   14   12   20      |T   21   30   25   23   30   25   29   24   24   24    22
 WRMS |    9   18   10    9   16    6   18   11   10   18      |NE  18   26   22   20   27   22   25   20   20   20    19
 MEDI |    9   17    9    8   15    5   19   11   10   18      |MD  17   27   23   20   29   18   27   20   22   20    19

Table 3.1610.5   GPS week: 1610   Day: 5   MJD: 55519.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   18  ---  ---  101  ---   39  ---   26   26  ---   16 |    31  ---  ---  100  ---   61  ---   20   26  ---    25
   2  |    9   21   11   12   13    4   22   19   12   27    5 |     9   27   19   15   26   12   27   15   14   17    13
   3  |    6   13    4    9   13    4   10   10    8   23    3 |    13   18   13   14   22   14   17   13   16   14    14
   4  |   11   11    9    8    9    4    7   20   13   16    4 |    19   22   25   18   29   21   22   22   20   20    20
   5E |   10   18   10   11   17    5   19   17   12   16    4 |     7   20   18    9   23   10   20   18   12   19    12
   6  |    6   12    6    8   12    5    9   11   10   18    3 |    17   23   19   18   27   18   23   17   20   16    18
   7  |    6   14   14    8   15    6   14   12   13   16    4 |    21   31   27   28   33   25   24   23   21   25    23
   8  |   13   23    8   11   18    4   17   18   11   26    5 |    69   72   68   71   65   70   69   73   70   79    69
   9  |    9   18   10    8   14    6   15   16   13   15    4 |    11   22   16   12   20   12   21   16   16   16    13
  10E |   15   22   15   16   21    6   15   34   23   22    7 |    24   30   26   26   29   23   23   43   36   22    21
  11  |    5   15    9    8   14    8   16   14   11   12    4 |    23   29   27   24   32   21   25   28   22   21    22
  12  |    8   20   13   11   17    5   20   14   12   14    5 |    12   24   22   15   27   14   24   17   15   14    15
  13  |    9   16   13    7   21    8   18   12   12   16    4 |    22   32   24   22   35   23   31   21   22   20    21
  14  |    6   16    6    9   15    4   19   18   12   15    4 |    11   27   16   13   28   14   25   20   16   16    15
  15  |    5   23   10    7   18    5   23   19   12   20    5 |    12   26   16   12   27   11   24   18   11   18    12
  16  |    8   25    7   10   17    8   27   13    9   23    5 |    14   30   18   13   28   14   31   15   18   19    16
  17  |   12   12    9   36   16    6   14   15    7   26    6 |    19   22   23   42   25   25   23   25   21   29    23
  18E |    9   21    9   14   19    6   24   13   17   38    6 |    50   54   52   55   52   49   54   48   53   53    53
  19  |    6   11    4    8   11    5   12   18   10   21    3 |    18   19   18   15   18   18   17   27   20   17    17
  20E |    8   18    8    9   17    6   20   15   11   14    4 |    13   26   18   12   25   13   24   18   16   19    13
  21  |    9   19    9   13   17    5   21   13   11   21    5 |    13   30   16   13   28   12   29   10   12   19    14
  22E |    9   20    9    9   16    5   18   17   11   14    4 |    14   26   22   17   27   16   26   18   22   15    17
  23  |    8   19   12   10   17    7   21   13   11   17    4 |    12   29   20   16   25   14   26   13   14   12    12
  24  |    8   12    8   10   17    5   11   14   10   17    4 |    12   18   19   16   23   14   17   16   14   18    12
 X25  |   15  ---    9   14   18    7  ---   13   11  ---    6 |    24  ---   24   21   29   22  ---   20   21  ---    22
  26  |    5   14    7    9   12    5    8   14    9   26    4 |    13   18   17   14   20   14   17   18   16   28    15
 X27  |    8   20    9    7   13    5  ---   17   10   15    4 |     7   20   12   11   14   11  ---   17    9   14    10
  28  |   11   17    6   12   18    4   17   10    7   17    4 |    19   30   23   26   34   21   29   22   22   20    21
 X29  |    6   12   10   11   15    8   12   14   13  ---    4 |    20   22   23   23   24   21   21   22   24  ---    21
  30  |   10   15    8   13   14    7   13   15   14   17    4 |    15   22   16   15   25   15   23   15   21   23    17
 X31  |    8  ---  ---   10  ---   14  ---  ---  ---  ---    9 |     8  ---  ---   26  ---    8  ---  ---  ---  ---    10
  32E |   13   20   11   13   18    6   19   41   26   16    7 |    89   95   91   92   94   93   95  105   96   93    91
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18   10   12   16    6   17   18   13   20      |T   20   29   24   25   30   22   28   24   23   24    21
 WRMS |    9   18    9   11   17    6   17   14    9   20      |NE  15   24   19   21   25   17   23   18   17   18    16
 MEDI |    8   18    9   10   16    5   17   15   11   17      |MD  14   26   19   16   27   15   24   18   20   19    17

Table 3.1610.6   GPS week: 1610   Day: 6   MJD: 55520.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    5  ---  ---  ---  ---   38  ---  ---  ---  ---    0 |    29  ---  ---  ---  ---   63  ---  ---  ---  ---    26
   2  |    9   23   12   16   16    7   21   18   12   27    5 |    11   28   23   22   27   14   28   15   16   18    15
   3  |    7   16    8   11   13    5   13   12    8   21    4 |    16   23   23   17   30   17   26   21   18   18    19
   4  |   12   13    4   13   16    5    9   18   11   12    4 |    27   28   32   26   36   30   33   29   28   24    27
   5E |   10   20    9   12   16    4   23   22   10   28    5 |    13   25   18   14   23   15   27   28   17   32    16
   6  |    6   13    6   10   14    5   11   11    9   17    3 |    22   28   30   23   37   24   30   28   23   23    26
   7  |    6   16   10   11   20    6   15   11    6   15    4 |    21   31   24   26   30   22   27   21   24   24    24
   8  |   14   25    7   14   21    4   17   15   11   27    5 |    77   81   77   74   70   76   79   77   73   87    76
   9  |   11   20    7   12   14    7   15   16    9   14    4 |    18   26   14   20   23   16   25   20   16   20    15
  10E |   16   26   15   22   28    6   17   35   27   17    8 |    26   33   25   30   31   27   29   45   40   23    24
  11  |    5   14    8   12   17    6   18   16    8   12    4 |    31   33   36   32   37   30   31   39   32   27    29
  12  |    8   22    9   11   17    7   23   12    9   13    4 |    19   29   25   20   30   19   32   23   19   21    19
  13  |    9   16   10    8   22    6   18   10   12   15    4 |    23   29   25   23   34   22   29   17   23   16    21
  14  |    8   19   10    9   19    6   21   17    7   16    4 |    16   27   24   20   31   17   27   24   21   20    19
  15  |    7   22    8    9   19    7   23   17    7   20    4 |    17   27   20   16   33   18   27   24   19   25    17
  16  |    6   33   10   13   19    5   27   12   12   20    5 |    21   38   21   19   33   20   35   20   19   23    19
  17  |   14   15    7   31   19    6   16   12   11   27    6 |    32   34   38   50   40   38   34   40   40   38    36
  18E |    8   22   12   10   16    9   24   12   10   20    5 |    24   33   24   23   30   21   34   23   24   35    23
  19  |    9   13    9    7   12    5   14   17    9   24    4 |    31   31   34   32   32   32   31   37   33   30    31
  20E |    7   23   12   12   31    5   20   17   12   16    5 |    14   27   16   13   27   15   26   19   16   18    12
  21  |   10   21    9   10   17    5   22   13   13   22    5 |    16   30   14   17   28   15   30   17   15   21    13
  22E |    7   16   14   11   16    7   22   16    8   13    4 |    15   25   21   16   29   15   29   21   15   18    16
  23  |    7   22    9   11   22    6   24   13    9   19    5 |    15   29   21   19   27   17   27   13   14   13    14
  24  |   10   15    8   15   16    4    9   17    8   18    4 |    16   21   22   20   23   18   20   22   16   20    16
 X25  |   19  ---   10   14   20    6  ---   13   12  ---    6 |    38  ---   28   27   36   31  ---   32   28  ---    30
  26  |    7   14   10    9   15    7    9   13   12   27    4 |    19   26   26   21   33   21   25   26   28   36    22
  27  |    8   22    6   11   12    5   13   16    8   13    4 |    12   25   10   13   21   14   19   16   11   15    11
  28  |   11   25    7   15   19    6   19   10   10   16    4 |    23   35   26   28   36   24   34   26   27   27    25
 X29  |    6   14    7   11   21    6   14   11   11  ---    4 |    30   34   36   34   41   34   34   37   33  ---    34
  30  |    6   13    7   11   17    5   12   16   11   17    4 |    17   22   18   18   29   19   25   19   17   27    18
 X31  |    9  ---   10  --- 3216    7   21   11    9  ---    5 |     8  ---    5  ---    7    7   18    5    6  ---     8
  32E |   14   24   11   14   25    6   20   40   25   16    7 |   104  109  105  107  111  110  108  113  112  107   107
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   20    9   13   19    6   18   18   12   19      |T   25   33   27   27   34   26   32   28   26   28    25
 WRMS |    9   20    9   12   17    6   17   14    7   20      |NE  21   28   23   23   30   23   28   23   21   23    21
 MEDI |    8   20    9   11   17    6   18   15   10   17      |MD  19   29   24   21   31   20   29   23   21   23    19



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.
         Units: mm.

Table 4.1610   GPS week: 1610   MJD: 55514.0-55520.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3037 |U   10    19    33 |U    8     9    26 |U    7     8    18 |
emr | emr 2816 |U   14    23    38 |U    9    10    30 |    10    10    24 |
esa | esa 2934 |    10    18    31 |U    8     9    25 |     8     9    21 |
gfz | gfz 2976 |U   12    19    37 |U    8    10    28 |U    8    10    22 |
grg | grg 2934 |    13    23    37 |U    9    11    31 |    10    12    26 |
igr | igr 2945 |    10    18    29 |     8    10    26 |     8     9    19 |
igs | igs 2925 |    11    20    34 |     9    10    26 |     8     9    20 |
jpl | jpl 2787 |U   14    22    35 |    11    10    31 |U    9    10    22 |
mit | mit 2962 |U   15    21    38 |U    8    10    26 |U    9    10    23 |



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: mm.

Table 5.1610.0   GPS week: 1610   Day: 0   MJD: 55514.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3047 |    13    19    32 |     9     9    23 |     7     9    23 |
emr | emr 2872 |    16    14    38 |    10    10    23 |    10    11    23 |
esa | esa 2976 |     7     7    29 |     8     9    21 |     8    11    24 |
gfz | gfz 3037 |    15    18    40 |     8    11    22 |     9    13    24 |
grg | grg 2976 |    11    12    30 |     9    12    27 |    11    14    28 |
igr | igr 3010 |    13    12    22 |     8    11    25 |     8    12    22 |
igs | igs 2970 |    16    24    37 |     9    12    20 |     9    12    23 |
jpl | jpl 2775 |    23    20    43 |    10     9    25 |     9    11    23 |
mit | mit 2976 |    12    19    32 |     9    11    21 |     8    11    25 |

Table 5.1610.1   GPS week: 1610   Day: 1   MJD: 55515.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3050 |     8     6    20 |     8    12    22 |     7    10    19 |
emr | emr 2870 |     9    10    32 |    11    12    27 |    15    15    23 |
esa | esa 2976 |     8     5    21 |     8    11    20 |     8     9    22 |
gfz | gfz 3033 |     9     5    24 |     8    12    22 |     8    11    21 |
grg | grg 2976 |    26    24    36 |     8    12    25 |    10    12    25 |
igr | igr 3017 |     7     4    20 |     8    12    18 |     9    12    22 |
igs | igs 2917 |     8     6    21 |    11    14    26 |     8    10    22 |
jpl | jpl 2774 |     8     8    26 |    13    12    30 |     9    12    26 |
mit | mit 3072 |     8     6    22 |     9    11    23 |    10    15    23 |

Table 5.1610.2   GPS week: 1610   Day: 2   MJD: 55516.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |    22    88   112 |     9     8    27 |    10     9    19 |
emr | emr 2776 |    25    90    94 |    10     7    36 |    13    13    28 |
esa | esa 2880 |    20    89    85 |     9     7    26 |    10    11    22 |
gfz | gfz 2938 |    21    86    94 |    10     7    25 |    11    14    27 |
grg | grg 2880 |    20    85   102 |    10     8    33 |    11    15    28 |
igr | igr 2945 |    20    89    80 |     8     7    24 |    10    13    21 |
igs | igs 2880 |    21    88   100 |     9     7    25 |    10    12    21 |
jpl | jpl 2775 |    25    87    84 |    12     8    36 |    12    13    26 |
mit | mit 2880 |    21    86   102 |     9     9    31 |    11    10    22 |

Table 5.1610.3   GPS week: 1610   Day: 3   MJD: 55517.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3023 |     6     8    15 |     7     8    22 |     7     7    18 |
emr | emr 2776 |    12    16    26 |     8     9    35 |     9    10    23 |
esa | esa 2880 |     8     7    19 |     7     9    24 |     7     8    19 |
gfz | gfz 3043 |     7     6    18 |     6     9    21 |     7     7    19 |
grg | grg 2880 |     8     7    18 |     7    11    29 |     9    11    24 |
igr | igr 2814 |     7     7    21 |     8    12    27 |     7     7    19 |
igs | igs 2880 |    12     7    21 |     7     9    25 |     7     7    19 |
jpl | jpl 2776 |    11    11    22 |     9    10    35 |    10    10    19 |
mit | mit 2880 |    41    17    53 |     8    10    22 |    11    10    23 |

Table 5.1610.4   GPS week: 1610   Day: 4   MJD: 55518.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |     8     6    21 |     9     9    37 |     6     6    14 |
emr | emr 2871 |     9     7    26 |     9     9    36 |     9     8    23 |
esa | esa 2976 |     8     5    19 |     8     9    35 |     7     6    20 |
gfz | gfz 2964 |     9     7    21 |     8     8    39 |     7     7    19 |
grg | grg 2976 |     8     6    20 |     8     9    40 |     8    10    21 |
igr | igr 2936 |     8     5    19 |     8    11    36 |     7     6    16 |
igs | igs 2976 |     8     5    19 |     8     8    35 |     7     6    16 |
jpl | jpl 2863 |     9     6    22 |    10    10    37 |     8     8    19 |
mit | mit 2976 |     9     9    21 |     9     9    34 |     8     7    19 |

Table 5.1610.5   GPS week: 1610   Day: 5   MJD: 55519.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3042 |     6     4    13 |     8    12    29 |     7     6    20 |
emr | emr 2776 |    12    12    29 |     8    12    32 |     9     8    24 |
esa | esa 2880 |     8     8    20 |     9    12    31 |     8     8    21 |
gfz | gfz 2951 |     8     8    22 |     9    12    40 |     7     8    22 |
grg | grg 2880 |     8     8    19 |    10    15    32 |     7     8    22 |
igr | igr 2917 |     7     5    18 |     7    12    30 |     7     8    18 |
igs | igs 2879 |     9     8    19 |     7    11    29 |     7     8    21 |
jpl | jpl 2680 |    14    17    27 |     9    12    35 |     8     6    21 |
mit | mit 2976 |     8     8    20 |     6    12    28 |     9     8    27 |

Table 5.1610.6   GPS week: 1610   Day: 6   MJD: 55520.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3029 |     7     4    18 |    10     8    21 |     7     7    17 |
emr | emr 2776 |    13    10    22 |    10     7    25 |     8     7    24 |
esa | esa 2976 |     7     6    22 |     9     9    20 |     7     7    20 |
gfz | gfz 2866 |    13     4    38 |    10    10    25 |     8     9    24 |
grg | grg 2976 |    11    21    32 |     9     8    29 |    12    16    37 |
igr | igr 2976 |     8     5    20 |     9     8    23 |     7     7    17 |
igs | igs 2975 |     8     5    21 |     9     7    19 |     6     7    19 |
jpl | jpl 2872 |     9     7    22 |    10     8    22 |     8     7    21 |
mit | mit 2976 |     8     4    18 |     9     8    21 |     7     8    23 |


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                          
        Ypole,Yrt: y pole and y pole rate                       
        LOD      : Length Of Day                                               
                                                                              
        AC LOD BIAS    : 21-day mean LOD bias with respect to Bulletin A     
        AC LOD BIAS RMS: RMS of AC LOD BIAS                              
                                                                              
        FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
              for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1610   GPS week: 1610   MJD: 55514.500-55520.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      29     -50     -21     266     -5 |      -1     15
            |      18      18      26      41      6 |       3
emr   uuuuu |      -3      -6     -18     106     -1 |      44     46
            |      26      17     124      80      4 |       2
esa   uuuuu |      11     -37      21    -129     -5 |      -1     16
            |      18      12      71     124      6 |       3
gfz   uuuuu |      21      55     -53       2      8 |      -3     17
            |      12      25      65      58      3 |       5
grg   uuuux |      44     -62      58     181      0 |       0     26
            |      29      27     105      65     30 |       2
igr   xxxxx |      35      44      85      81      2 |      -2     15
            |      15      27      64      96      4 |       3
irf   xxxxx |     -16      -4     -47       3      3 |       7     19
            |       6      14      71      36      7 |       5
jpl   uuuuu |      46     -27     -55     199    -10 |      10     19
            |      15      52      63     120      6 |       5
mit   uuuuu |     -40      -1    -179     -35     10 |      16     24
            |      13      19     118      55      6 |       7
ngs   uuuuu |     -21      52      83    -126     -1 |      -4     14
            |      32      48      61     111      9 |       3
sio   uuuuu |     -56     -28     199     109      1 |      20     26
            |      20      25      96      66     10 |       5


Table 7.1610.0   GPS week: 1610   Day: 0   MJD: 55514.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      56     -44      -8     289     -5 |       2     15
emr   uuuuu |      36     -14     -97     161     -3 |      44     47
esa   uuuuu |      32     -43     -24    -323    -10 |       2     18
gfz   uuuuu |      36      59      20      63     12 |      -8     18
grg   uuuux |      66     -95     125     134    -10 |       0     30
igr   xxxxx |      17      47      63      81      6 |      -3     16
irf   xxxxx |     -24     -20      11     -20     10 |       3     18
jpl   uuuuu |      31     -58     -83     423    -15 |      17     26
mit   uuuuu |     -61     -22     -82     -56     11 |       9     20
ngs   uuuuu |     -54     105     -12      15     -7 |       0     14
sio   uuuuu |     -69     -69     290      47     11 |      15     23

Table 7.1610.1   GPS week: 1610   Day: 1   MJD: 55515.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      11     -71     -27     221    -13 |       0     13
emr   uuuuu |       3      -4     -17     211     -5 |      43     45
esa   uuuuu |      11     -47     -63    -228     -1 |      -1     16
gfz   uuuuu |      32      17      30     -46      7 |      -8     18
grg   uuuux |      28     -33     -80     173      1 |       1     30
igr   xxxxx |      29      27     108      42      6 |      -4     16
irf   xxxxx |     -16       2       9      -4      6 |       3     18
jpl   uuuuu |      36    -106     -60     278     -9 |      14     23
mit   uuuuu |     -25      11    -125     -24     12 |       9     20
ngs   uuuuu |     -19      92     108     -16     -7 |      -1     14
sio   uuuuu |     -80      -6     309      60      7 |      15     24

Table 7.1610.2   GPS week: 1610   Day: 2   MJD: 55516.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       7     -48      29     326     -7 |      -4     16
emr   uuuuu |       7       2    -225     167     -3 |      40     43
esa   uuuuu |      -6     -39      15    -149      0 |      -5     16
gfz   uuuuu |      12      63     -16      79     13 |      -9     19
grg   uuuux |      -2     -31     -54     240    -45 |      -1     30
igr   xxxxx |      33      48      83    -105      3 |      -6     16
irf   xxxxx |     -12     -19      11      42     10 |       2     18
jpl   uuuuu |      56     -58     -40      68    -12 |       8     17
mit   uuuuu |     -42     -24     -76      22     18 |       9     19
ngs   uuuuu |      22      56     114    -207    -12 |      -5     16
sio   uuuuu |     -48     -42     250     104      7 |      15     24

Table 7.1610.3   GPS week: 1610   Day: 3   MJD: 55517.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      36     -68     -37     233     -6 |      -1     17
emr   uuuuu |      16      25     -41      31     -2 |      43     46
esa   uuuuu |      11     -24     -47     -55     -4 |      -1     18
gfz   uuuuu |       5      97     -91     -75      9 |      -3     21
grg   uuuux |      28     -72      61     181    -18 |       3     26
igr   xxxxx |      47      64      64     203      3 |      -3     18
irf   xxxxx |     -18       6     -37     -11      5 |       8     22
jpl   uuuuu |      63     -31      50     127     -4 |       9     18
mit   uuuuu |     -43       2    -147       7     17 |      15     27
ngs   uuuuu |      -1      -8     159     -79     -5 |      -4     16
sio   uuuuu |     -65     -16     215     107      2 |      21     29

Table 7.1610.4   GPS week: 1610   Day: 4   MJD: 55518.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      37     -31     -43     306     -8 |       3     14
emr   uuuuu |     -24     -11      47     125      1 |      48     49
esa   uuuuu |     -15     -53      48    -122      2 |       3     15
gfz   uuuuu |      32      33     -71      28      6 |       3     15
grg   uuuux |      79     -53      29     227     40 |      -2     23
igr   xxxxx |      60      18      23     116      3 |       2     13
irf   xxxxx |     -11     -14     -26      25      1 |      14     19
jpl   uuuuu |      32       5      -8     217    -20 |      12     18
mit   uuuuu |     -43     -13    -128     -10      8 |      23     28
ngs   uuuuu |     -16      98      29    -273      3 |      -2     15
sio   uuuuu |     -29     -43     186     153      1 |      27     30

Table 7.1610.5   GPS week: 1610   Day: 5   MJD: 55519.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      42     -25     -16     240      3 |      -1     13
emr   uuuuu |     -41     -31     170      34      7 |      46     47
esa   uuuuu |      10     -21     129     -91    -12 |      -1     13
gfz   uuuuu |      14      57    -126       5      5 |       3     15
grg   uuuux |      72     -52     104     245     38 |      -3     21
igr   xxxxx |      39      92      39     103     -2 |       0     13
irf   xxxxx |     -22      16    -149      42     -4 |      13     19
jpl   uuuuu |      39       3    -104     130     -5 |       7     15
mit   uuuuu |     -46      27    -337     -38      5 |      23     28
ngs   uuuuu |      -8       1      54    -227     12 |      -6     13
sio   uuuuu |     -68       6      67     234     -9 |      25     29

Table 7.1610.6   GPS week: 1610   Day: 6   MJD: 55520.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      13     -62     -43     244      3 |      -4     14
emr   uuuuu |     -19      -6      34      12     -3 |      44     46
esa   uuuuu |      34     -31      86      66     -9 |      -5     16
gfz   uuuuu |      20      59    -119     -39      8 |       1     15
grg   uuuux |      38     -98     222      66     -9 |       0     20
igr   xxxxx |      19      15     216     127     -4 |      -2     14
irf   xxxxx |      -8      -2    -146     -55     -7 |      10     18
jpl   uuuuu |      65      54    -140     153     -7 |       3     15
mit   uuuuu |     -22       9    -358    -145      0 |      22     27
ngs   uuuuu |     -72      20     127     -96     10 |      -8     13
sio   uuuuu |     -32     -29      77      56    -15 |      22     27



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