[IGSREPORT-20154] Wk 1652 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Sep 22 04:52:46 PDT 2011


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1652   (Sep 04, 2011 - Sep 10, 2011)

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:

igs1652[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1652[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1652[0-6].cls  IGS GPS clock combination summary report.
igs16527.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16527.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 of poorer consistency (GRG),
    they 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  |  COD   | 30 30 NRIL
                0  |  EMR   | 27
                0  |  ESA   | KOSG IRKJ KOSG NICO
                0  |  GFZ   | 30 MDVJ
                0  |  GRG   | IRKJ USN3
                0  |  JPL   | IRKJ
                0  |  MIT   | 18 27 30 18 21 27 30 MAW1
                1  |  COD   | 30 30 WILL
                1  |  EMR   | 9 9
                1  |  ESA   | 17 22 29 30 30 MDVJ REUN
                1  |  GFZ   | 30 DAV1 MDVJ
                1  |  GRG   | SANT
                1  |  JPL   | 9 27 28
                1  |  MIT   | 9 11 28 9 11 27 28 MAW1 MIZU CAS1 MIZU
                2  |  COD   | 30 SYDN WROC YELL COCO MDVJ MOBS WROC YELL
                2  |  EMR   | 9 9 YELL YELL
                2  |  ESA   | 30
                2  |  GFZ   | 30 BRUS MDVJ STJO YELL
                2  |  JPL   | 9 27
                2  |  MIT   | 9 26 27 9 26 27 BRUS BRUS HARB
                3  |  COD   | 27 30 27 30 DARW KOSG
                3  |  EMR   | 9 9 HARB HARB
                3  |  GFZ   | 9 25 27 30 KOSG MDVJ
                3  |  GRG   | SANT
                3  |  JPL   | 9
                3  |  MIT   | 9 27 9 27 BRMU
                4  |  COD   | KOSG
                4  |  EMR   | 9 27 9 27
                4  |  ESA   | IRKJ
                4  |  GFZ   | 27 30
                4  |  GRG   | IRKJ LHAZ SANT USN3
                4  |  JPL   | 9
                4  |  MIT   | 1 9 30 1 9 27 30 NICO BOR1 KOSG NICO
                5  |  ALL   | 27
                5  |  COD   | MOBS MOBS
                5  |  EMR   | 9 9
                5  |  ESA   | 30 30 HOFN IRKJ UNSA
                5  |  GFZ   | 30 MDVJ
                5  |  GRG   | IRKJ LHAZ SANT USN3
                5  |  JPL   | 9
                5  |  MIT   | 1 9 1 9 MAC1
                6  |  COD   | KOSG
                6  |  ESA   | 29 30 30 KOSG TIXI BAN2 IRKJ KOSG TIXI
                6  |  GFZ   | 7 8 27 30 ISPA QAQ1
                6  |  GRG   | IRKJ SANT
                6  |  JPL   | CHUR
                6  |  MIT   | 1 7 8 27 30 1 7 8 11 27 30 DAV1 HARB DAV1 HARB MAW1

 5. 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  |  GRG   |  27

 6. 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 G01 |    |    |  2 |  1 |    |    |  1 |

 7. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011
    (GPS Week 1631, day 6, MJD 55667) 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.  The IGS05 frame
    is also the basis for the homogeneously reprocessed IGS products from GPS
    Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products,
    are based on the IGS realization of the ITRF2008 reference frame (IGS08).
    For more information see IGSMAIL #6354.
    

 8. 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  |     .4     .4     .6     -19    -15     23    -.05
       EMR  |   -2.9    6.0   -2.6      19     15     10     .16
       ESA  |   -3.0    3.1   16.0      70     23     56    -.04
       GFZ  |    -.7     .7     .5     -40     13     14     .03
       GRG  |   -4.8    3.8   15.2      -3      5     13    -.13
       JPL  |   -5.3    5.7     .4     -12    -11     18    -.05
       MIT  |    1.7    1.0   14.2     -17      7    -16     .04
       NGS  |    1.8    -.6    8.4     -29      6      6     .05
       SIO  |    1.2    4.7   -8.9      82   -106     -6    -.04


 9. 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.

10. 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.

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011
    (GPS Week 1631, day 6, MJD 55667) the absolute antenna model is introduced
    (IGSMAIL #5438). The antenna phase center offsets and phase center
    variations are given in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed
    IGS products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which
    caused their RMS clock residuals to be higher during that period than for
    the other centres; since GPS Week 1632 the JPL solution is excluded from
    the weekly SINEX combination.

    
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 1.1652.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1652.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 2.1652.[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 3.1652.[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 5.1652.0-6).

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 1652 summary.                       (Sep 04, 2011 - Sep 10, 2011)

Table 1.1652.a   GPS week: 1652   MJD: 55808.000-55814.000

         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  252|    0     0     3    35     9    10  -.23    7    7 |    -420      63     19     88
        |    0     0     0     9    11    15   .02           |     758     493
emr   95|    0     3    -2   -22   -59     8   .46   20   20 |    1367     332     15     99
        |    1     1     0    14    18    11   .03           |    1250    1136
esa  142|    0     0     0   -95    12   -18   .25    7    7 |   -1304    1048     19    182
        |    0     0     0     9    23    14   .03           |    1811    1549
gfz  197|    0     1    -4    51    -5     3  -.21   12   11 |     188    -186     22    101
        |    1     0     2    23    78    13   .02           |     138     267
grg  129|    1     0     7   -11   -17    19   .56   15   14 |     119     139     54    238
        |    0     0     3    11    29    12   .04           |     212     436
igr  n/a|    0     0     0     5   -14   -23  -.06    5    4 |    2051     467     19     76
        |    0     0     1    14    22    10   .02           |    1527    1139
jpl  133|   -1     0    -5    39    10    60   .57   15   15 |     652     363     18    107
        |    1     0     0    10     6    38   .02           |    1790    1315
mit  276|    1    -1     0    27   -27   -11  -.41   11   10 |     -70     280     21    176
        |    0     1     0    19    14    17   .02           |    1486    1884
ngs  221|    0     0     0    58   -36    -5  -.25    9    7 |   36462 -129656   1886   3540
        |    0     1     0    24    47    13   .05           |   97523  343040
sio  250|    1     1    -3  -157   220   -36  -.14   22   21 |     ---     ---    ---    ---
        |    1     1     1    19    23    11   .03           |     ---     ---


Table 1.1652.b   GPS week : 1652   MJD: 55808.000-55814.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1652.0   GPS week: 1652   Day: 0   MJD: 55808.000                            

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  252|    0     0     3    33     0    11  -.24    7    7 |    -559    -148     18     84
        |                     30    11                       |
emr   95|    0     4    -2   -41   -38    -8   .42   20   20 |    -558     854     14    102
        |                    -13    -9                       |
esa  142|   -1     0     0   -88    18   -15   .26    6    6 |   -1396    1672     16    159
        |                     43    -3                       |
gfz  197|    0     2    -3    77   -59    -5  -.19   12   11 |     177    -343     26    101
        |                    -25    33                       |
grg  129|    2     0     3   -15   -75    17   .54   15   14 |      56     -71     47    246
        |                     70    49                       |
igr  n/a|    0     0     0   -11     7   -10  -.05    5    4 |     -53     606     18     60
        |                     -4     6                       |
jpl  133|    0     0    -6    57     4    71   .55   15   14 |   -1649     603     19    101
        |                    -19     0                       |
mit  276|    0     0     0    24   -30     6  -.38   11   11 |     -62     191     23    180
        |                    -20    -5                       |
ngs  221|    0     0     1    27    21   -10  -.29    9    8 |    -550    -153   1795   3888
        |                     13   -63                       |
sio  250|    0     0    -4  -143   214   -57  -.15   24   22 |     ---     ---    ---    ---
        |                     38  -107                       |

Table 2.1652.1   GPS week: 1652   Day: 1   MJD: 55809.000                            

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  252|    0     0     3    26     0    11  -.23    8    8 |    -489     312     18     81
        |                     32    -7                       |
emr   95|    1     3    -3   -32   -52     9   .46   20   20 |     610    1501     14    106
        |                    -27    30                       |
esa  142|    0     0     1  -105    43   -31   .27    7    7 |   -1033    1852     18    220
        |                     47   -10                       |
gfz  197|   -1     1    -6    93   -26    27  -.21   13   14 |     299    -383     21    106
        |                    -42    37                       |
grg  129|    1     0     4    -5   -34    20   .58   13   12 |      -1     548     48    244
        |                     67     8                       |
igr  n/a|    0     0     0    -5   -16   -25  -.05    5    5 |     739    1455     23     72
        |                      3    32                       |
jpl  133|    0    -1    -5    33    19    37   .56   15   15 |    -782    1315     17    107
        |                      3   -11                       |
mit  276|    2     0     0    40   -31    14  -.41   11   10 |    -159     610     18    167
        |                    -28    -2                       |
ngs  221|    0     1     0    26   -25   -12  -.31    8    6 |    -465     227   1788   3684
        |                     60    50                       |
sio  250|    0     0    -4  -142   210   -42  -.17   22   21 |     ---     ---    ---    ---
        |                     32  -131                       |

Table 2.1652.2   GPS week: 1652   Day: 2   MJD: 55810.000                            

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  252|    0     0     2    29    15    33  -.21    7    7 |    -465     249     18     85
        |                     35    -3                       |
emr   95|    0     4    -2    -6   -85    22   .47   20   20 |    1227    1499     18    108
        |                    -27    47                       |
esa  142|   -1     0     0   -97   -20    -9   .25    7    7 |    -825     957     20    194
        |                     77    23                       |
gfz  197|    1     2    -8    35    75     9  -.22   12   11 |      93    -252     22    106
        |                    -44    56                       |
grg  129|    2     1     7   -26     4    20   .63   14   13 |     174     274     43    243
        |                     47   -10                       |
igr  n/a|    0     0    -2    -6   -20   -29  -.04    4    4 |    1417    1757     21     97
        |                     -5    28                       |
jpl  133|    0    -1    -3    49    10    -5   .56   16   16 |    -370    2179     22    165
        |                    -14   -49                       |
mit  276|    1    -1     0    54   -14    -1  -.43    9    9 |     -66     345     21    191
        |                    -21   -16                       |
ngs  221|    0    -1    -1    64   -86   -23  -.24    8    7 |  257617 -907599   2011   3755
        |                     36    43                       |
sio  250|    0     0    -2  -140   235   -24  -.15   21   22 |     ---     ---    ---    ---
        |                     41  -148                       |

Table 2.1652.3   GPS week: 1652   Day: 3   MJD: 55811.000                            

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  252|    0     0     2    39     8     5  -.22    7    7 |    -172    -241     16     70
        |                     24   -24                       |
emr   95|    0     4     0    -9   -71     3   .42   19   19 |    1587     927     15     95
        |                    -23    14                       |
esa  142|    0     0     0  -101   -11     0   .28    6    6 |    1025    -589     17    156
        |                     41    27                       |
gfz  197|    0     1    -4    30    97     2  -.23   11   12 |     -74     257     22    105
        |                    -32    33                       |
grg  129|    1     0     7     4     6     5   .57   15   14 |      94    -127     49    251
        |                     -5   -26                       |
igr  n/a|    0    -1     0    23   -27   -33  -.07    4    4 |    2107    1432     18     71
        |                     -5    20                       |
jpl  133|    0     0    -5    42    13    58   .56   14   15 |     753    1221     16    115
        |                    -15    -6                       |
mit  276|    1    -1     0    22   -30   -27  -.43    9    9 |     399    -501     18    185
        |                      1   -15                       |
ngs  221|    0    -1     0    88   -90    -2  -.28    9    8 |    -128    -336   2162   3340
        |                    -42    37                       |
sio  250|    1     1    -3  -164   210   -35  -.15   21   21 |     ---     ---    ---    ---
        |                     58  -125                       |

Table 2.1652.4   GPS week: 1652   Day: 4   MJD: 55812.000                            

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  252|    0     0     3    31     0    12  -.20    7    7 |    1070    -813     18    120
        |                     31    16                       |
emr   95|   -2     3    -2   -30   -78     5   .52   19   19 |    3317   -1344     15     93
        |                      0    12                       |
esa  142|    0     1     0  -105     0   -20   .24    8    8 |     219   -1074     22    171
        |                     41    17                       |
gfz  197|    1     1    -5    39    35   -12  -.20   12   11 |     306    -285     22     95
        |                    -21    89                       |
grg  129|    0     0     5   -25   -19    22   .52   16   15 |     568    -632     61    235
        |                     34    -6                       |
igr  n/a|    0     0     0    22   -52   -10  -.04    5    5 |    4342   -1147     18     76
        |                    -29    24                       |
jpl  133|   -2    -1    -4    31     5   118   .58   16   15 |    3416   -1408     18     92
        |                      3     4                       |
mit  276|    0    -2     0    39    -3   -30  -.39   10    9 |    2608   -3031     23    171
        |                    -12   -16                       |
ngs  221|    0     0    -1    56   -64   -14  -.16    9    7 |    1254   -1060   2067   3364
        |                    -21    55                       |
sio  250|    1     0    -2  -147   265   -35  -.12   22   21 |     ---     ---    ---    ---
        |                     53  -154                       |

Table 2.1652.5   GPS week: 1652   Day: 5   MJD: 55813.000                            

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  252|    0     0     2    54    12   -18  -.28    7    7 |   -1286     497     21     94
        |                     -8   -35                       |
emr   95|   -1     1    -2    -7   -50     0   .45   19   19 |    2409    -483     13     96
        |                    -43     0                       |
esa  142|    0     0     0   -90    21    -9   .24    7    6 |   -2709     987     20    172
        |                     54    13                       |
gfz  197|    1     2    -2    46   -34     5  -.21   11   11 |     248     128     22     99
        |                    -34    41                       |
grg  129|    1     0    10    -1     0     7   .51   14   14 |      13     475     54    226
        |                     39   -53                       |
igr  n/a|    0     0     1    14   -13   -17  -.08    4    4 |    3512    -280     20     75
        |                    -21     9                       |
jpl  133|   -1    -1    -5    34    14    82   .58   14   14 |    2432    -502     18     86
        |                     20    -9                       |
mit  276|    0    -2    -1    -4   -39   -17  -.43   11   10 |   -2358    3278     21    161
        |                    -10    -6                       |
ngs  221|   -2    -1     0    84   -35     5  -.25    9    7 |   -1301     517   1741   3605
        |                    -48   -48                       |
sio  250|    2     1    -5  -183   211   -23  -.12   21   21 |     ---     ---    ---    ---
        |                     63  -127                       |

Table 2.1652.6   GPS week: 1652   Day: 6   MJD: 55814.000                            

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  252|    0     0     3    34    30    20  -.23    8    8 |   -1045     586     25     84
        |                     27   -22                       |
emr   95|    0     0    -2   -29   -42    25   .46   19   19 |     979    -628     16     96
        |                    -48    -1                       |
esa  142|    0    -1     0   -80    34   -44   .19    7    7 |   -4413    3534     23    204
        |                     58     1                       |
gfz  197|    0     1    -4    40  -124    -4  -.19    9    9 |     271    -427     22     97
        |                    -43    31                       |
grg  129|    2     0    14    -9    -6    44   .55   18   17 |     -70     508     76    221
        |                      8   -99                       |
igr  n/a|    0     0     0     1    17   -34  -.09    4    4 |    2295    -551     20     83
        |                    -24   -16                       |
jpl  133|   -2     0    -5    26     1    62   .60   14   14 |     769    -864     18     86
        |                    -56     6                       |
mit  276|    1    -1     0    14   -46   -22  -.42   13   12 |    -857    1073     24    181
        |                    -21   -11                       |
ngs  221|    0     0    -1    65    24    17  -.24    9    7 |   -1189     808   1639   3144
        |                    -48   -34                       |
sio  250|    3     2    -4  -184   195   -37  -.09   21   20 |     ---     ---    ---    ---
        |                     69  -120                       |

       
       
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 3.1652.0   GPS week: 1652   Day: 0   MJD: 55808.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    5   26    6   11   16    4   13   11    7   14    3 |    19   34   19   19   25   19   26   23   19   25    20
   3  |    5   14    6   13   13    4   11    8    7   17    3 |    11   17   14   16   16   12   19   13   14   15    12
   4  |    9   13    6    8   10    5   12   20   11   20    4 |    14   23   16   15   12   14   19   23   14   22    14
   5  |    5   18    6    8    8    4   14   15    8   20    3 |    18   25   26   21   28   22   28   27   21   22    21
   6  |    6   17    5   11   12    4   10    9    6   16    3 |    10   20   16   17   18   13   20   14   14   16    13
   7  |    3   21    7    8   21    5   20   11   10   24    4 |    36   42   37   33   46   38   39   35   38   41    36
   8  |    9   13    7   11   10    4   11    8    9   14    3 |    17   21   16   13   21   15   21   15   16   18    14
   9E |   21   22    9   14   23   11   19   11   11   32    6 |    88   88   94   87   91   94   91   85   93  101    89
  10  |    6   11    5    9    9    4    8   11    8   13    3 |    22   26   23   25   28   24   28   30   28   23    24
  11E |    5   16    4    7   12    3   13   10   11   13    3 |    26   36   30   26   32   29   31   27   28   31    28
  12  |    7   22    8   16   15    6   14   11    9   38    4 |    15   29   23   26   27   22   29   22   20   33    21
  13  |    5   24    5    9   21    4   16   10    8   21    4 |    15   31   18   16   35   17   30   16   18   17    17
  14  |    6   24    8   12   18    5   17   15    9   26    4 |    17   30   21   23   25   18   26   21   16   20    17
  15  |    7   30    8   13   18    5   15   10   12   21    4 |    18   29   22   23   28   19   25   21   21   19    18
  16  |    8   22    8   21   15    7   16    7   10   54    5 |    15   27   20   27   22   18   27   18   16   47    16
  17  |    7   27    8    8   17    5   14   16    8   16    4 |    18   37   22   15   26   18   29   23   23   23    20
  18  |    6   18    4   13    9    4   14   14    7   28    4 |    16   29   22   19   25   18   26   21   19   21    18
  19  |    6   22    4   10   16    3   15    9    8   19    3 |    23   37   22   21   29   22   29   20   18   30    22
  20  |    8   18    5   11   12    3   17    8    6   23    3 |    21   30   28   25   30   23   29   23   22   36    24
  21  |    5   23    6   10   18    4   14   10   10   22    4 |    15   31   22   16   29   16   26   19   20   23    19
  22  |    6   17    6   10   13    3   14   13    7   23    3 |    20   27   24   24   31   22   26   26   19   25    21
  23  |    5   28    5   10   18    5   18   11   10   23    4 |    17   36   22   18   29   18   32   18   20   17    19
  24  |    7   17    6    9   14    5   13   11   11   21    3 |    14   23   21   15   18   16   24   17   18   27    16
  25  |    8   13    8   18   14    3   14    9    9   23    4 |    21   31   28   30   34   24   38   28   25   20    25
  26  |    5   15    7    8   11    3    8    9   11   14    3 |    14   21   17   16   20   15   20   17   14   16    14
 X27E |   18   33   14   16   23   10  ---   18  ---  ---    8 |    34   37   31   33   20   29  ---   35  ---  ---    31
  28  |    6   21    6   10   16    5   15   11   10   37    4 |    15   31   23   24   27   18   29   23   18   36    18
  29  |    6   22    6   15   16    4   15   10   13   20    4 |    21   31   19   17   27   19   26   17   17   25    18
 X30  |    7   12    8   13   16    4  ---   13    7   18    4 |    12   19   23   19   22   17  ---   22    6   19    17
  31  |    8   23    6   12   20    5   17   16    9   19    4 |    19   33   21   24   31   20   27   20   20   21    19
  32  |    8   18    4   10   14    3   16    8    9   17    3 |    22   26   25   24   30   24   27   28   25   30    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    6   12   15    5   15   11    9   24      |T   20   30   24   23   28   22   29   24   22   27    22
 WRMS |    7   20    6   11   14    4   14   11    8   22      |NE  16   27   21   20   25   18   26   20   18   24    18
 MEDI |    6   21    6   11   15    4   14   11    9   20      |MD  18   30   22   21   27   19   27   22   19   23    19

Table 3.1652.1   GPS week: 1652   Day: 1   MJD: 55809.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    7   27    7   13   14    4   15   13    8   14    4 |    17   32   18   17   15   15   21   17   19   18    15
   3  |    5   17    5   10   10    4    9    8    7   16    3 |    12   19   14   13   14   12   17   13   15   11    12
   4  |   10   16    8   12   11    5   14   15   13   22    4 |    14   18   11   16    7   11   14   18   15   16    10
   5  |    6   16    6   12    8    3   15   14    7   21    3 |    15   26   22   18   22   19   28   18   21   19    19
   6  |    6   18    4   10   10    4   10    7    6   16    3 |    11   19   12   13   16   11   17   13   14   11    11
   7E |    8   19    9   12   15    9   17   10   12   16    4 |    59   62   62   64   61   57   68   63   64   61    61
   8  |   11   14    6   12    8    5   14    6    8   15    3 |    16   23   15   15   19   13   21   12   15   16    13
   9E |   17   22    7   12   20   11   20    9   12   24    5 |    77   69   69   70   72   72   67   70   72   74    70
  10  |    9   12    6   10   13    2   10   11    7   13    3 |    18   21   21   20   20   19   19   21   22   19    19
  11E |    6   20    6   10   15    3   14    9    6   12    3 |    29   37   31   33   37   27   32   31   29   28    29
  12  |    7   20    6   16   12    5   16   12   12   33    4 |    13   27   17   18   23   16   26   21   18   29    15
  13  |    5   24    8   10   18    4   16    8    9   21    4 |    15   32   19   17   32   15   28   14   12   16    15
  14  |    6   22    7   15   13    5   20   12    6   17    4 |    16   26   20   21   23   17   24   17   15   16    15
  15  |    7   28   10   12   13    4   13   10    8   23    4 |    17   28   24   19   24   17   24   19   19   18    18
  16  |    8   24    7   16   13    4   15    8    9   51    5 |    12   30   17   18   20   12   25   15   13   42    13
  17  |    7   22    8   10   15    4   15   12    7   14    4 |    18   30   17   11   21   16   24   21   17   20    17
  18  |    7   20    7   13    9    3   16   10    8   24    4 |    12   26   20   15   20   15   26   14   17   16    15
  19  |    7   24    5   14   14    3   13   10    6   20    4 |    17   30   15   16   24   15   21   15   17   21    15
  20  |    8   19    6   10    9    5   18   10    6   22    3 |    15   28   23   19   24   17   26   16   15   33    18
  21  |    6   25    6   13   16    4   14    7    9   16    4 |    12   27   17   12   27   11   24   13   17   18    14
  22  |    6   16    6    9    8    5   14   10    7   22    3 |    13   24   19   16   19   16   23   15   16   20    14
  23  |    5   27    8   12   12    3   21   10    7   21    4 |    16   33   19   19   25   17   30   15   14   15    17
  24  |    7   19    7   11   12    4   15   12    6   20    3 |    13   21   16   17   17   11   20   14   14   21    12
  25  |    9   15    8   34   12    4   16    8   10   18    5 |    16   28   23   28   30   19   33   18   19   18    19
  26  |    8   16    8    9    9    3    9   10    7   18    3 |    17   24   21   17   19   17   24   17   16   20    18
 X27E |   17   20   12   15   23   11   17   12  ---  ---    6 |    27   32   25   31   27   26   16   30  ---  ---    27
  28  |   12   19    9   15   13    5   15   11    9   36    5 |    14   30   21   23   23   15   27   17   16   33    15
  29  |    9   20   10   14   14    5   17   10   11   18    4 |    15   24   16   15   23   14   23   13   16   19    13
 X30  |    8   14    9   11    9    3  ---    6    5   16    3 |    12   20   18   17   19   14  ---   16    7   14    14
  31E |   10   22    9   12   16    7   18   16    9   21    4 |    27   33   34   30   36   28   34   31   30   38    29
  32  |    6   17    4   11   10    4   16   13    6   16    3 |    22   26   22   22   22   21   26   23   22   24    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    7   13   13    5   15   11    8   22      |T   19   29   22   21   25   19   26   20   20   24    19
 WRMS |    8   20    7   14   12    5   15   10    6   21      |NE  14   25   18   17   21   15   23   16   16   20    15
 MEDI |    7   20    7   12   13    4   15   10    7   18      |MD  16   27   19   18   23   16   24   17   16   19    15

Table 3.1652.2   GPS week: 1652   Day: 2   MJD: 55810.000                            

        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  |    4  ---  ---  ---  --- 4679  ---  ---  ---  ---    0 |    25  ---  ---  ---  --- 9999  ---  ---  ---  ---    23
   2  |    8   27    8   19   16    2   13   11    9   15    4 |    17   30   18   16   15   16   22   21   21   20    16
   3  |    6   13    5   12   10    4   11    7    7   15    3 |    12   16   13   15   13   11   20   14   16   14    11
   4  |   10   16    6    8   10    4   13   12    9   19    3 |    15   21   16   18   12   16   18   25   22   19    15
   5  |    7   19   10   11   11    3   16   13    8   20    4 |    14   24   19   17   22   15   25   22   17   15    16
   6  |    5   15    5   11   10    4   12    8    8   15    3 |    12   18   14   15   14   12   22   15   17   12    12
   7E |    6   17    8   12   16    4   18    8    7   16    4 |    29   36   32   27   42   30   37   30   36   32    31
   8  |    9   15    7   10    9    3   11    8    8   14    3 |    15   23   19   15   20   13   22   16   16   18    14
   9E |   13   19    9   14   18    8   23   12   14   24    5 |    54   52   53   53   54   55   57   50   57   65    53
  10  |    7   14    7    8   15    3    9    9   10   13    3 |    17   19   17   18   23   17   22   26   23   21    18
  11E |    8   17    4    9   14    4   14    8    7   10    3 |    30   31   27   32   32   28   31   30   30   27    27
  12  |    7   22   10   16   10    5   16   13   11   31    4 |    15   26   18   22   24   19   27   21   24   27    17
  13  |    6   23    7    9   18    5   16    9    7   20    4 |    18   31   20   17   34   18   29   20   21   20    18
  14  |    7   24    6   14   15    3   18    8    7   17    4 |    16   24   18   18   24   14   24   17   15   15    14
  15  |    6   27    9   14   13    7   19   12    9   20    4 |    15   26   20   21   27   17   26   21   19   18    16
  16  |    8   23    9   18   12    6   16    8    7   46    5 |    14   28   18   21   21   16   26   15   17   36    14
  17  |    8   23    9   11   16    4   17   10    6   13    4 |    16   31   19   15   22   16   29   24   21   22    18
  18  |    5   20    9   13    8    5   17    7    6   25    3 |    15   28   19   16   25   15   27   16   14   18    16
  19  |    7   22    6   10   12    3   14    9    5   20    3 |    18   32   15   14   24   14   26   18   18   24    15
  20  |    7   20    5   11   11    4   18    8    8   23    4 |    18   29   27   22   26   21   28   21   21   31    21
  21  |    8   24    9   13   18    5   18   10    6   16    4 |    14   29   21   20   27   15   28   17   21   20    16
  22  |    4   19    5   12    9    4   16    7   10   22    3 |    16   24   15   18   23   16   24   19   17   20    16
  23  |    5   27    7   10   14    5   20    7    8   21    4 |    18   34   21   18   28   18   30   20   18   21    18
  24  |    9   17    5    9   13    3   14    9   10   21    3 |    13   20   14   17   14   12   18   18   18   19    12
  25  |    8   14    7   13   11    4   16    7    8   15    3 |    19   29   25   26   32   23   36   26   25   21    22
  26  |    6   16    6    9   10    4   11   11   11   16    3 |    15   20   15   13   19   16   22   20   20   18    15
 X27E |   11   24   18   14   81    9   22   19  ---  ---    7 |    17   30   27   18   62   21   17   23  ---  ---    19
  28  |    9   21    8   16   11    5   14   10    9   37    4 |    14   29   25   26   24   19   28   24   24   34    19
  29  |    8   24   10   13   11    4   15   10    7   17    4 |    20   27   19   16   24   16   26   18   22   20    18
 X30  |    7   14    6   12   12    2  ---    6    6   12    3 |    14   20   14   18   17   13  ---   16    9   22    14
  31E |    6   19    7   14   24    4   20    8    8   10    4 |    19   29   26   27   35   21   30   24   25   27    24
  32  |    7   17    5    9   12    3   17    9    6   16    3 |    14   17   17   17   18   13   18   19   18   16    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    7   12   14    4   16    9    8   21      |T   18   26   20   20   25   18   26   21   21   23    18
 WRMS |    7   20    7   11   13    4   16    9    7   22      |NE  15   25   18   18   22   15   24   19   19   20    16
 MEDI |    7   19    7   12   12    4   16    9    8   17      |MD  16   28   19   18   24   16   26   20   20   20    16

Table 3.1652.3   GPS week: 1652   Day: 3   MJD: 55811.000                            

        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  |   20  ---   22  ---  ---   11  ---   16  ---  ---   14 |    45  --- 9999  ---  --- 9999  --- 9999  ---  ---    49
   2  |    7   21    6   13   17    3   14    8   10   14    4 |    18   28   17   18   18   19   26   20   24   25    18
   3  |    5   10    6   10   14    3   11    7   10   17    3 |    12   12   10   13   15    9   15   13   18   11     9
   4  |    8   15    6    6    9    5   12    9    9   21    3 |    16   19   13   13   13   15   19   19   19   16    13
   5  |    7   16    7   11   14    5   17   11    9   19    4 |    16   25   20   22   26   18   27   22   20   18    18
   6  |    4   11    5    7   15    4   10    7   11   16    3 |    11   14    9   13   17    9   15   13   18   11     9
   7E |    7   23    6   11   14    3   16    8    7   18    3 |    26   39   31   23   35   26   30   29   29   32    27
   8  |    8   13    5   10   12    4   11    8    9   16    3 |    17   22   16   14   19   13   20   16   14   19    13
   9E |   10   20    6   11   17    5   20   15   12   28    4 |    66   63   61   61   68   60   65   61   62   71    62
  10  |    7   12    4    6   12    6   11    9   10   14    3 |    24   26   20   23   29   22   28   31   23   24    23
  11E |    5   17    5    8   13    2   13    9    9   11    3 |    28   37   32   32   33   30   31   32   29   32    29
  12  |    6   19    6   12   15    4   14   14    9   31    4 |    16   29   19   20   23   17   27   22   22   28    17
  13  |    6   21    5    8   19    3   16    9   10   20    4 |    15   30   18   16   33   15   27   17   16   17    15
  14  |    6   24    7   11   15    3   14    7    9   18    3 |    14   25   17   18   22   13   20   14   13   13    13
  15  |    8   26    7   14   17    5   19   15   13   21    5 |    16   27   18   20   25   14   26   20   15   18    15
  16  |    6   22    6   15   17    5   16    9   11   39    5 |    13   28   17   19   20   13   23   15   16   27    13
  17  |    6   19    5    8   16    3   13    8    9   15    3 |    18   28   18   15   24   16   25   22   23   23    17
  18  |    7   18    6   12   14    5   15    7   10   24    4 |    11   26   18   16   22   14   25   14   16   14    14
  19  |    5   21    6    8   18    3   12   10    8   19    3 |    21   32   18   16   25   18   23   19   17   25    17
  20  |    7   17    4    9   13    3   16    9    8   29    3 |    18   28   26   24   29   21   28   21   25   35    22
  21  |    6   24    8   10   17    4   11    9   10   17    4 |    12   27   18   12   24   14   23   15   17   16    13
  22  |    5   17    4   10   13    4   13    7    8   22    3 |    16   23   19   22   25   17   22   20   19   20    17
  23  |    6   25    6   10   13    3   17    9    8   21    4 |    16   31   19   17   25   16   26   17   15   15    15
  24  |    7   20    8    6   12    3   13   10    7   23    3 |    11   24   14   13   15   12   20   17   14   20    11
  25  |    8   12    7   27   13    5   14    8    8   15    4 |    22   29   23   33   31   22   33   24   20   20    22
  26  |    7   15    6    8   14    4   12   10    8   16    3 |    16   19   15   15   21   13   21   20   12   19    14
 X27E |   16   30   18   19  ---   15  ---   14  ---  ---    9 |    26   33   33   25  ---   26  ---   24  ---  ---    28
  28  |   10   20    8   11   11    5   13   10    5   39    4 |    18   31   26   27   27   20   31   25   23   36    22
  29  |    8   21    8   15   13    3   15    8    6   16    4 |    19   27   21   16   25   18   24   18   20   22    17
 X30  |    9   15    4    9   13    4  ---    6  ---  ---    4 |    16   21   16   21   22   16  ---   22  ---  ---    17
  31E |    6   24    6   11   19    5   16    7    6   10    3 |    21   33   26   22   33   22   28   24   24   22    23
  32  |    8   15    3    9   15    3   15   10    7   19    3 |    23   26   23   27   28   23   24   27   24   24    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   19    6   11   15    4   14    9    9   21      |T   19   27   21   20   25   18   25   21   20   23    19
 WRMS |    7   19    6   12   14    4   15    9    8   21      |NE  17   25   18   18   23   16   23   19   18   20    17
 MEDI |    7   19    6   10   14    4   14    9    9   19      |MD  16   27   18   19   25   17   25   20   19   20    17

Table 3.1652.4   GPS week: 1652   Day: 4   MJD: 55812.000                            

        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  |   20  ---   21  ---  ---   16  ---   14  ---   49   13 |    34  --- 9999  ---  --- 9999  --- 9999  ---   31    28
   2  |    5   21   10   12   18    4   16    8   12   15    4 |    12   24   10   13   17   12   18   14   18   15    11
   3  |    5   12    8   12   13    5   12    9    6   19    3 |    11   16   12   15   15   12   17   16   10   11     9
   4  |    8   17    8    7   11    3   14   11   14   22    4 |    15   24   15   15   16   17   19   20   23   14    15
   5  |    7   18    8   11   12    6   19    9   11   21    4 |    18   26   23   24   25   21   27   23   23   19    20
   6  |    5   15    7   11   12    5   12    9    7   16    3 |    12   19   12   15   16   12   18   15   11    9    10
   7E |    6   21    8   12   16    6   21    6    8   17    4 |    17   29   20   18   29   18   27   19   20   21    18
   8  |   10   18    6   14   11    6   12    8    8   16    3 |    19   29   16   19   20   18   27   20   15   23    18
   9E |   11   18    9   12   17    6   19   20   17   24    5 |    30   38   37   32   39   31   41   37   31   42    32
  10  |    5   15    5    9   13    6   12    9   11   16    3 |    22   29   23   23   26   24   25   27   24   22    23
  11E |    7   15    7    9   12    6   13    7    8   16    3 |    20   29   18   23   24   22   25   21   20   20    19
  12  |    7   21    9   12   15    4   16   17    9   31    5 |    16   32   23   20   26   20   28   26   17   26    19
  13  |    6   21    5   10   20    5   14    6    8   19    4 |    15   31   18   17   34   18   28   15   17   17    16
  14  |    6   19   10   11   18    6   15    7   10   20    4 |    18   25   19   20   25   16   23   18   18   15    16
  15  |    8   27   10   11   17    6   21   18    8   21    5 |    17   28   19   22   25   19   28   25   19   19    18
  16  |    9   23    9   14   16    5   18    7    9   33    5 |    13   29   20   21   22   18   26   16   16   21    15
  17  |    6   19    8    8   16    3   15    8   10   16    3 |    17   28   15   13   21   18   26   20   22   23    17
  18  |    6   19    7   10   12    6   15    8    7   23    3 |    16   28   17   17   23   18   26   18   17   17    16
  19  |    6   22    8   11   20    5   14    9    7   19    4 |    20   32   21   17   26   19   25   17   20   24    18
  20  |    7   19    5   12   15    5   16    7    6   29    4 |    15   28   23   22   28   19   27   18   17   32    19
 X21  |    6   26    8   13   19    6   15    9    7  ---    4 |    10   24   14   12   25    9   21   10   11  ---     9
  22  |    7   18    8    9   14    5   16   12    6   23    4 |    19   25   21   20   26   18   23   22   19   21    18
  23  |    7   24    6   14   17    4   16    5   10   20    4 |    15   32   17   19   25   17   27   15   17   16    15
  24  |    8   18   10   16   15    5   12   10    8   25    4 |    11   23   15   19   17   13   19   16   14   19    11
  25  |    7   12    7    8   14    6   15    7    8   15    3 |    18   27   26   20   32   20   34   23   21   18    21
  26  |    5   15    8    9   13    8   12   12    8   15    3 |    16   21   18   15   21   17   23   22   18   18    17
 X27E |   17   25   17   19  ---   10  ---   17  ---   25    8 |    26   24   24   25  ---   27  ---   24  ---   16    24
  28  |    9   20    8   20   13    5   17    8   10   39    5 |    17   32   23   33   28   21   30   26   25   36    22
  29  |    9   20   10   14   15    6   14    9    7   17    4 |    22   30   18   18   26   19   26   22   22   26    20
 X30  |   11   16   16   15   10    6  ---    8  ---  ---    5 |    15   21   28   24   19   18  ---   21  ---  ---    18
  31E |    7   23    6    8   23    5   19   15    9   16    4 |    13   24   14   16   23   13   22   19   15   19    13
  32  |    9   15    7   11   16    5   13   10    4   20    3 |    20   25   20   21   26   23   25   25   23   19    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   19    8   12   16    5   16   10    9   22      |T   17   26   19   19   24   18   25   20   18   20    17
 WRMS |    7   19    8   11   15    5   15    9    7   21      |NE  16   26   18   19   23   17   24   19   18   20    17
 MEDI |    7   19    8   11   15    5   15    9    8   20      |MD  17   28   19   19   25   18   26   20   18   19    18

Table 3.1652.5   GPS week: 1652   Day: 5   MJD: 55813.000                            

        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  |   26  ---   24  ---  ---   19  ---   17  ---   36   14 |    39  --- 9999  ---  --- 9999  --- 9999  ---   25    42
   2  |    9   24    9   12   17    4   12   10   11   23    4 |    17   29   19   21   16   19   21   25   22   29    18
   3  |    4   11    6   11   14    6   11   13    9   15    3 |    12   16   12   14   16   11   18   17   14   13    11
   4  |   10   17    7   11    9    4   15   11   12   21    4 |    15   20   16   21   12   15   19   23   22   18    14
   5  |    8   16    9   10   12    3   17    8    6   21    3 |    18   27   26   27   26   22   29   26   24   23    22
   6  |    5   12    5    8   13    4   11   11    7   13    3 |    12   16   13   17   17   11   17   16   14   12    11
   7E |    7   19    5   12   14    3   15   10    8   18    3 |    16   28   23   19   25   18   27   21   23   27    19
   8  |    9   16    6   13   11    3   14    7    6   12    3 |    19   26   21   20   22   19   23   20   20   23    18
   9E |   11   14    6    9   12    5   20   21   12   24    5 |    56   53   53   51   57   54   54   53   59   62    54
  10  |    7   10    4   10   13    4    8    9    9   16    3 |    21   22   21   26   25   22   22   27   25   24    22
  11E |    5   17    6    7   15    4   14    9    8   13    3 |    20   28   24   22   24   19   25   23   25   22    21
  12  |    9   21    9   10   15    7   16   13    8   33    4 |    19   29   28   22   26   21   30   29   23   29    23
  13  |    7   21    6   10   19    3   13    6   11   21    4 |    15   31   19   19   32   15   28   15   20   17    16
  14  |    6   22    5   10   17    4   13    8   12   17    4 |    15   26   17   20   23   16   22   18   18   18    15
  15  |    7   22    6   15   15    3   19   16   16   21    5 |    16   26   21   24   25   17   26   23   20   19    18
  16  |    8   21    8   15   17    5   17    8   13   30    4 |    12   28   21   21   21   16   26   16   19   18    15
  17  |    4   20    7   11   15    3   17    8    9   17    3 |    16   25   14   18   24   17   27   19   17   22    15
  18  |    6   17    7   12   11    4   13   12    8   21    3 |    13   25   16   17   21   13   25   18   15   16    14
  19  |    6   21    7   12   18    3   14    9    6   19    4 |    17   29   19   16   26   18   24   17   19   24    17
  20  |   10   19    7   13   13    3   14    8    9   29    4 |    17   29   25   25   28   20   27   18   24   33    21
  21  |    5   20    5   12   20    5   14    8    9   13    3 |    14   24   19   17   26   15   21   18   19   20    16
  22  |    6   16    5   11   12    5   13   15    7   21    3 |    15   23   17   21   24   14   23   23   18   20    16
  23  |    7   24    7   11   15    3   15    7    8   21    4 |    15   32   22   20   25   16   26   16   20   17    17
  24  |    7   17    6    8   14    4   12   13    9   25    4 |    14   22   16   16   19   12   17   17   19   21    13
  25  |    8   12    6   14   13    3   13   10    8   15    3 |    19   25   22   20   27   18   32   23   19   19    20
  26  |    6   14    5   10   11    6   11   11   10   13    3 |    14   19   18   20   19   16   21   23   17   17    15
 X27E |   11  ---  ---   17  ---   19  ---  ---  ---  ---   13 |    34  ---  ---   38  ---   43  ---  ---  ---  ---    37
  28  |    8   16    6   15   14    7   14   10    8   39    4 |    13   28   20   23   24   15   26   18   20   33    16
  29  |    7   22    8   14   17    4   14    9   10   18    4 |    25   33   25   29   27   24   30   24   29   30    23
 X30  |   12   23   14   16   15    7  ---   23  ---   21    7 |    25   29   33   31   24   25  ---   35  ---   21    27
  31E |    8   30    7   10   15    4   17   12   11   11    4 |    17   33   20   19   29   18   25   26   21   22    19
  32  |   10   17    6   10   13    3   11    9    8   20    3 |    18   20   19   21   21   17   17   19   18   21    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   19    7   11   14    4   14   11    9   21      |T   19   26   21   22   24   19   25   22   21   23    20
 WRMS |    7   19    6   11   14    4   14   10    7   21      |NE  17   25   19   21   22   17   23   20   19   21    18
 MEDI |    7   17    6   11   14    4   14   10    9   21      |MD  16   26   20   21   24   17   25   20   20   21    17

Table 3.1652.6   GPS week: 1652   Day: 6   MJD: 55814.000                            

        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  |   20  ---   18  ---  ---   12  ---   18  ---   47   13 |    31  --- 9999  ---  --- 9999  --- 9999  ---   21    30
   2  |    6   22    7   13   21    3   14    9    9   21    4 |    21   28   24   19   15   20   22   24   21   31    19
   3  |    7   14    5   11   13    5   11   18   11   15    4 |    14   14   18   14   14   17   17   19   18   22    15
   4  |   10   18    8    8   16    4   12   14   12   20    4 |    13   23   11   14   13   11   19   20   16   20    11
   5  |    7   17    7    8   19    5   15   10   12   22    4 |    25   32   32   32   38   28   35   32   29   24    28
   6  |    6   13    5    9   13    5    9   18   10   11    3 |    13   15   19   16   16   15   19   20   17   16    15
   7E |    8   22    8   10   18    4   19   10    7   13    4 |    18   28   22   21   26   17   24   17   16   21    17
   8  |   10   18    5   12   12    4   13   10    9   14    3 |    21   30   25   23   24   19   27   20   16   24    20
   9E |   13   16    6    8   22    6   15   17   10   24    4 |    75   74   73   70   71   72   72   71   77   77    73
  10  |    6   11   10    7   19    4    8   10   10   15    3 |    24   28   26   31   37   25   29   32   26   26    26
  11E |    7   17    8    6   15    4   11   11    8   13    3 |    18   25   22   17   21   16   21   20   22   20    18
  12  |    9   20    9   12   19    5   14   13   12   38    5 |    20   34   26   32   25   25   32   28   26   37    24
  13  |    6   22    5    9   21    3   14   11    9   21    4 |    17   33   22   20   35   17   31   17   17   18    18
  14  |    6   20    8   10   21    3   16    8   13   16    4 |    20   29   24   26   31   21   30   20   25   19    21
  15  |    8   25   10   10   17    4   19   23   11   22    5 |    21   31   24   26   29   22   32   28   20   21    21
  16  |    8   22    6   12   15    6   16    9   11   30    4 |    15   30   21   22   21   18   27   18   18   16    17
  17  |    6   18    9    6   19    3   16   10    6   16    3 |    22   32   22   17   28   21   32   22   21   26    22
  18  |    6   21    7    8   17    4   15   11    9   19    4 |    19   30   23   23   33   19   30   25   22   19    21
  19  |    7   20   10    8   18    6   12   11    9   19    4 |    27   36   25   22   31   26   32   20   28   31    25
  20  |    9   22    7   10   16    3   17   14    7   27    4 |    19   31   27   25   34   24   30   24   23   36    24
  21  |    5   19    8   10   20    3   14    7    5   16    3 |    17   24   22   18   28   14   23   14   17   16    16
  22  |    5   19    6    6   19    4   15   15    8   23    4 |    23   29   27   28   39   24   30   30   24   25    24
  23  |    7   25    7   11   18    3   16   10    9   22    4 |    19   35   25   21   29   20   32   18   20   20    20
  24  |    9   18    7    7   14    5   11   14   13   22    4 |    14   21   16   14   12   11   18   18   18   23    13
  25  |    6   12    7    8   18    5   13    8    7   20    3 |    25   29   29   30   36   25   39   29   24   21    27
  26  |    7   13    5    8   15    5   10   13    7   12    3 |    17   19   19   17   25   18   22   24   17   18    17
 X27E |   11   20   11   11  ---   15  ---   13  ---   21    6 |    40   49   57   41  ---   42  ---   50  ---   13    44
  28  |   11   18    8   13   15    4   14   11    7   39    5 |    18   30   27   32   30   21   31   27   21   37    22
  29  |    8   23    8   10   16    4   15   13   10   19    4 |    34   42   34   29   37   31   39   27   34   35    32
 X30  |    9   17   13   14   22    8  ---   14  ---   17    5 |    15   27   23   27   24   16  ---   21  ---   14    19
  31E |    5   21    8    8   21    6   20   20    8   15    4 |    16   21   23   14   28   16   26   22   19   20    16
  32  |    9   16    7    7   17    3   12    9    6   18    3 |    17   19   18   18   26   16   18   18   18   20    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    7    9   18    4   14   13    9   21      |T   22   29   26   24   28   22   28   25   23   24    22
 WRMS |    8   19    7    9   17    4   14   12    7   20      |NE  20   28   23   22   27   20   27   22   21   23    20
 MEDI |    7   19    7    9   18    4   14   11    9   19      |MD  19   29   24   22   28   20   30   22   21   21    20



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 4.1652   GPS week: 1652   MJD: 55808.0-55814.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3023 |U   27    16    41 |U    6     8    25 |U   13    15    22 |
emr | emr 2955 |U   25    18    44 |U   17    10    37 |    16    16    25 |
esa | esa 3017 |    27    17    41 |U    8     9    23 |    11    15    21 |
gfz | gfz 2963 |U   26    17    43 |U    7     9    33 |U   12    16    22 |
grg | grg 2920 |    26    16    41 |U    6     8    24 |    13    16    24 |
igr | igr 2998 |    26    18    38 |     6     8    27 |    12    15    21 |
igs | igs 2988 |    29    16    46 |     9     9    25 |    13    16    22 |
jpl | jpl 2805 |U   28    20    50 |U   19    15    74 |    14    15    25 |
mit | mit 3017 |U   26    18    38 |U   16    13    34 |U   18    17    27 |



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 5.1652.0   GPS week: 1652   Day: 0   MJD: 55808.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |    11    10    32 |     7     7    43 |     7     7    16 |
emr | emr 2972 |    12    11    32 |    14     8    31 |    11    10    17 |
esa | esa 2976 |    11    10    31 |    23    14    28 |     7     8    17 |
gfz | gfz 2969 |    11    10    30 |     7     7    64 |     6     6    17 |
grg | grg 2976 |    11    10    32 |     7     7    25 |     8     9    21 |
igr | igr 2974 |    11    10    33 |     8     7    62 |     7     7    16 |
igs | igs 2951 |    37    11    74 |    21    13    25 |     8     7    16 |
jpl | jpl 2784 |    32    13    70 |    31    39   253 |     8     8    19 |
mit | mit 2976 |    10    10    31 |    30    18    38 |     7     8    22 |

Table 5.1652.1   GPS week: 1652   Day: 1   MJD: 55809.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2974 |    15    10    34 |     6     8    19 |    42    48    35 |
emr | emr 2970 |    16    14    38 |    17     7    32 |    41    49    42 |
esa | esa 2976 |    15    10    33 |     5     7    20 |    27    49    26 |
gfz | gfz 2968 |    14     9    30 |     5     7    19 |    39    57    36 |
grg | grg 2976 |    15    10    33 |     5     9    22 |    35    49    30 |
igr | igr 2973 |    15    10    30 |     5     9    19 |    38    49    25 |
igs | igs 2956 |    15    10    33 |     5     7    19 |    39    50    32 |
jpl | jpl 2870 |    13     9    30 |    20    11    51 |    40    46    38 |
mit | mit 2976 |    14     9    28 |    14    11    33 |    53    53    38 |

Table 5.1652.2   GPS week: 1652   Day: 2   MJD: 55810.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2990 |    61    29    89 |     5     7    20 |    10    15    22 |
emr | emr 2968 |    63    32    95 |    13    11    27 |    12    13    17 |
esa | esa 2976 |    63    31    88 |     5     7    17 |     9    13    18 |
gfz | gfz 2967 |    65    32   100 |     5     5    18 |    12    14    17 |
grg | grg 2970 |    65    33    92 |     5     8    22 |    10    14    21 |
igr | igr 2974 |    63    31    95 |     5     7    17 |     9    13    17 |
igs | igs 2938 |    61    29    91 |     5     8    19 |    12    20    24 |
jpl | jpl 2870 |    55    48    97 |    21    11    49 |    12    13    23 |
mit | mit 2976 |    63    31    88 |    14    14    32 |    11    11    20 |

Table 5.1652.3   GPS week: 1652   Day: 3   MJD: 55811.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3066 |    18     9    26 |     7     6    23 |     8     8    18 |
emr | emr 2968 |    16     9    29 |    18    11    43 |    10     9    21 |
esa | esa 3072 |    17     8    25 |     8     9    25 |     8     6    21 |
gfz | gfz 2968 |    17     9    28 |     6     8    23 |     7     7    19 |
grg | grg 2880 |    18    11    26 |     7     9    22 |     8     8    21 |
igr | igr 3065 |    17     9    27 |     7     8    24 |     8     6    19 |
igs | igs 3029 |    17     8    26 |     7     8    22 |     7     6    18 |
jpl | jpl 2776 |    19    10    31 |    19    11    50 |     9     8    18 |
mit | mit 3072 |    18     9    26 |    14    12    32 |    18    15    22 |

Table 5.1652.4   GPS week: 1652   Day: 4   MJD: 55812.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3067 |    61    38    58 |     7     8    23 |     6     9    21 |
emr | emr 2968 |    47    38    49 |    20    10    42 |    11     9    24 |
esa | esa 3072 |    62    39    59 |     6     9    23 |     8     9    20 |
gfz | gfz 2967 |    57    39    56 |     6     7    22 |     8     9    23 |
grg | grg 2880 |    49    33    49 |     7     8    26 |     8     9    23 |
igr | igr 3060 |    58    46    34 |     6     9    23 |     7     9    24 |
igs | igs 3037 |    55    38    55 |     6     8    23 |     7     7    20 |
jpl | jpl 2780 |    48    41    50 |    12     9    35 |    12     7    22 |
mit | mit 3072 |    57    47    35 |    13    12    34 |    18    13    39 |

Table 5.1652.5   GPS week: 1652   Day: 5   MJD: 55813.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |    11    10    26 |     6    11    28 |     9     9    20 |
emr | emr 2876 |    13    12    30 |    19    13    43 |    13    16    36 |
esa | esa 2976 |    11    11    28 |     7     9    28 |    10    14    25 |
gfz | gfz 2937 |    11    10    28 |     6     8    27 |     9    14    23 |
grg | grg 2880 |    12    11    30 |     7     9    28 |    10    14    26 |
igr | igr 2902 |    12    10    28 |     6     9    28 |     9    12    25 |
igs | igs 2953 |    11    11    26 |     6     8    28 |    10    13    25 |
jpl | jpl 2779 |    16    13    40 |    11    13    36 |    11    15    31 |
mit | mit 2976 |    11     9    26 |    12    16    32 |    10    11    26 |

Table 5.1652.6   GPS week: 1652   Day: 6   MJD: 55814.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3059 |     9     7    22 |     6     8    20 |     8    12    21 |
emr | emr 2968 |    12     9    33 |    16    11    43 |    15     9    18 |
esa | esa 3072 |    11     8    23 |     5     9    23 |     6     9    23 |
gfz | gfz 2967 |    10     8    28 |    16    21    61 |     6     8    22 |
grg | grg 2880 |    11     8    24 |     6     7    24 |    11    12    24 |
igr | igr 3044 |    10     7    20 |     5    10    19 |     7     8    21 |
igs | igs 3054 |    10     7    22 |    14    10    41 |     7     8    19 |
jpl | jpl 2780 |    12    10    33 |    17    12    47 |     8     8    23 |
mit | mit 3072 |    10    10    29 |    12    11    33 |     8     9    24 |


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 6.1652   GPS week: 1652   MJD: 55808.500-55814.500

                                                         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 |       9     -16      28      19      6 |      16     21
            |      17      16      79      52      8 |       1
emr   uuuuu |     -13      34      -8      62     -2 |      65     67
            |      15      16      77      60      3 |       2
esa   uuuuu |     -10     -44       8      88     -1 |      20     27
            |      14      15      39      39      7 |       2
gfz   uuuuu |     -46      42     -80     -22     -1 |      13     19
            |      16      15      78      43      4 |       3
grg   uuuux |      19     -29       6       0      9 |       5     24
            |      44      20      70      95     30 |       2
igr   xxxxx |     -15      20      29     -13     -1 |       6     16
            |      10      10      62      61     10 |       1
irf   xxxxx |       0       8     -23     -44     -5 |      10     20
            |      11      11      28      56      2 |       3
jpl   uuuuu |       9      19     -23      65      8 |      42     45
            |      24      20     109      79      8 |       2
mit   uuuuu |      10      24     -65    -121     -8 |      24     31
            |      15      18      70      93      4 |       4
ngs   uuuuu |      -6      15      74     -66     -1 |      12     21
            |      41      34      61      74      7 |       3
sio   uuuuu |     130     -43     114       7     17 |      38     41
            |      26      24      82     124     10 |       3


Table 7.1652.0   GPS week: 1652   Day: 0   MJD: 55808.500

                                                         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 |     -20     -17     -88      40     17 |      15     20
emr   uuuuu |       0      26      35     111     -3 |      68     69
esa   uuuuu |      -6     -30      63     143      5 |      24     27
gfz   uuuuu |     -42      38    -141      18      2 |      17     20
grg   uuuux |     -58     -57     117    -126     24 |       2     24
igr   xxxxx |     -15      17     -34      44     12 |       8     16
irf   xxxxx |      -9      13     -51     -89     -3 |      15     20
jpl   uuuuu |      -9      32    -183      78      6 |      43     46
mit   uuuuu |      -4      33    -151    -179     -3 |      29     32
ngs   uuuuu |      54       0     156     -73     -9 |      17     21
sio   uuuuu |      98     -25      67    -152     15 |      38     41

Table 7.1652.1   GPS week: 1652   Day: 1   MJD: 55809.500

                                                         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     -10     104     -69     14 |      14     19
emr   uuuuu |     -24      49      59     169      4 |      66     67
esa   uuuuu |      16     -25     -26     108      0 |      22     25
gfz   uuuuu |     -31      64    -222     -36     -1 |      15     18
grg   uuuux |      -2     -45      21      -6      9 |       4     25
igr   xxxxx |     -26      19      34      64      6 |       7     14
irf   xxxxx |       6      22      11    -115     -3 |      13     17
jpl   uuuuu |      17      19     -10     170     17 |      42     44
mit   uuuuu |       8      50      45    -271     -6 |      27     30
ngs   uuuuu |     -44     -38      19       9     -6 |      14     19
sio   uuuuu |     137     -10     283    -150     27 |      35     37

Table 7.1652.2   GPS week: 1652   Day: 2   MJD: 55810.500

                                                         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 |       9     -15     119      84     10 |      16     20
emr   uuuuu |     -41      47      29      23     -5 |      67     68
esa   uuuuu |     -17     -57      -5     113     -9 |      22     25
gfz   uuuuu |     -50      64     -84     -55      0 |      15     17
grg   uuuux |      16     -27      10      76     66 |       4     25
igr   xxxxx |     -22      25      86      25      7 |       7     14
irf   xxxxx |       6      20       2      26     -7 |      13     17
jpl   uuuuu |      55      34    -131     150     13 |      42     44
mit   uuuuu |      22      41     -31     -56    -11 |      27     30
ngs   uuuuu |     -37     -16      89    -199      0 |      13     19
sio   uuuuu |     154     -21     134     117     29 |      36     39

Table 7.1652.3   GPS week: 1652   Day: 3   MJD: 55811.500

                                                         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 |      31     -25      83      23      2 |      14     21
emr   uuuuu |      -7      22     -68      12     -1 |      63     66
esa   uuuuu |     -20     -42     -14      70      8 |      17     27
gfz   uuuuu |     -26      31     -18      52     -7 |      11     20
grg   uuuux |      33       4      34     -37     11 |       3     24
igr   xxxxx |     -13       4      47     -51     -1 |       5     18
irf   xxxxx |       7      -1     -10      -2     -5 |       8     22
jpl   uuuuu |      13      14     -10     -17     11 |      40     43
mit   uuuuu |      22      -2     -44     -42    -12 |      22     31
ngs   uuuuu |     -30      41      56    -118     -2 |       9     22
sio   uuuuu |     132     -59     129      89     24 |      34     37

Table 7.1652.4   GPS week: 1652   Day: 4   MJD: 55812.500

                                                         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 |      -1     -25      38      36     -1 |      16     22
emr   uuuuu |       3       6      53      67     -3 |      64     67
esa   uuuuu |      -2     -35     -30      26     -5 |      20     29
gfz   uuuuu |     -74      27     -15     -57     -5 |      11     21
grg   uuuux |      21     -28     -31     -87    -20 |       8     24
igr   xxxxx |      -9      35     122     -45    -12 |       7     18
irf   xxxxx |      15       6      -5      15     -6 |       9     22
jpl   uuuuu |      11       3     134      78     -8 |      43     46
mit   uuuuu |      31      18     -30      -5    -10 |      22     32
ngs   uuuuu |     -40      27     -22     -56     12 |      10     22
sio   uuuuu |     169     -47      70     150     16 |      39     42

Table 7.1652.5   GPS week: 1652   Day: 5   MJD: 55813.500

                                                         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 |      23      14     -17     -29     -2 |      16     23
emr   uuuuu |     -12      49    -153       3     -4 |      63     66
esa   uuuuu |     -25     -48      62      97      4 |      18     27
gfz   uuuuu |     -53      40     -64     -61      1 |      10     20
grg   uuuux |      41     -33    -115      30    -19 |       6     23
igr   xxxxx |     -21      27      -7    -112    -15 |       5     16
irf   xxxxx |     -12       6     -59     -73     -6 |       7     20
jpl   uuuuu |      -3     -14      70      39     10 |      42     45
mit   uuuuu |      -6      16    -120    -144     -8 |      20     29
ngs   uuuuu |      36      54     120     -33     -3 |      11     23
sio   uuuuu |     115     -57      47      31      6 |      41     45

Table 7.1652.6   GPS week: 1652   Day: 6   MJD: 55814.500

                                                         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 |       8     -37     -42      51      3 |      18     24
emr   uuuuu |     -13      38      -7      48      0 |      64     67
esa   uuuuu |     -15     -68       5      56     -9 |      20     28
gfz   uuuuu |     -45      33     -17     -13      4 |      12     21
grg   uuuux |      85     -18       4     152     -6 |       6     23
igr   xxxxx |       2      14     -47     -18     -7 |       5     16
irf   xxxxx |     -14     -10     -45     -71     -6 |       7     21
jpl   uuuuu |     -20      46     -29     -41      5 |      45     49
mit   uuuuu |      -3      11    -125    -150     -3 |      21     30
ngs   uuuuu |      20      38      98       7      0 |      11     24
sio   uuuuu |     106     -79      69     -34      6 |      44     48



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