[IGSREPORT-20496] Wk 1669 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Jan 20 06:43:06 PST 2012


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1669   (Jan 01, 2012 - Jan 07, 2012)

Contacts: J. Griffiths (jake.griffiths at noaa.gov)
          K. Choi (kevin.choi 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:

igs1669[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1669[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1669[0-6].cls  IGS GPS clock combination summary report.
igs16697.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16697.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   | 15 15 WROC WROC
                0  |  EMR   | WUHN WUHN
                0  |  ESA   | UNSA
                0  |  GFZ   | KOUR MDVJ SYOG
                0  |  GRG   | AMC2
                0  |  JPL   | AREQ
                0  |  MIT   | 15 21 26 30 15 21 26 30 DAV1 KOUR KHAJ KOUR
                1  |  EMR   | 26 26
                1  |  ESA   | UNSA
                1  |  GFZ   | 15 MATE MDVJ YAKT
                1  |  GRG   | HYDE USN3
                1  |  JPL   | 26
                1  |  MIT   | 26 26 CAS1 MAW1 TIDB
                2  |  COD   | CHUR CHUR XMIS
                2  |  EMR   | 26 26 WUHN WUHN
                2  |  ESA   | KERG KOUR UNSA
                2  |  GFZ   | 15 DUBO MDVJ
                2  |  GRG   | AMC2 KOUR
                2  |  JPL   | 26 AREQ
                2  |  MIT   | 26 26 CAS1 NICO CAS1 NICO
                3  |  GFZ   | 15 23 KERG
                3  |  JPL   | 26 AREQ CAS1 HOLB
                3  |  MIT   | 21 26 21 26 CAS1
                4  |  COD   | HNPT
                4  |  EMR   | 26 FAIR THTI
                4  |  GFZ   | 15 23 MATE WSRT
                4  |  GRG   | KERG NKLG
                4  |  JPL   | 26 AREQ
                4  |  MIT   | 3 23 26 32 3 23 26 32 CAS1 HYDE
                5  |  COD   | NKLG
                5  |  ESA   | DAV1 UNSA
                5  |  GFZ   | 15 23
                5  |  GRG   | LPGS
                5  |  MIT   | 14 18 22 26 29 10 14 18 19 22 26 29
                6  |  COD   | 14 WROC WROC YAKT
                6  |  EMR   | 26 YAKT
                6  |  ESA   | KOUR UNSA
                6  |  GFZ   | 14 15 23 DAV1 MKEA NKLG
                6  |  GRG   | KOUR
                6  |  JPL   | 26 AREQ
                6  |  MIT   | 7 7 19 26 DAV1 DAV1

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets.  Note that only the largest clock offset and drift are output
    to the summary file.  However, the clock combination and the listed RMS
    include all the clock segments.  In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                1  |  MIT   | ~00:00 | ~ -0.71 ns

 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
               ----+--------+---------------
                1  |  SIO   | ALL (high Transformation - See Table 2)
                6  |  SIO   | ALL (high Transformation - See Table 2)

 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 current IGS reference frame. These rotations were
    estimated in the IGS SINEX combination process, performed by the IGS Reference
    Frame Coordinator at the Institut Geographique National (IGN). 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  |    -.1     .2    -.6     -41     -3      8     .05
       EMR  |    2.5    4.9   14.2       9     13    -11     .26
       ESA  |    5.7    3.3    4.4      74   -151    112    -.04
       GFZ  |    -.8     .8    -.6     -44     17    -10     .10
       GRG  |    4.6     .7   -9.1     -27     36    -31     .01
       JPL  |    4.6    1.6    9.6     -59    -51      1     .17
       MIT  |    4.4    2.3    -.7     -27     22    -46     .17
       NGS  |    4.8    2.7   -5.2      30    -39     34     .30
       SIO  |    1.7    8.9     .0     133    -71     -1     .11


 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 1.1669.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1669.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 2.1669.[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 3.1669.[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 5.1669.0-6).

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 1669 summary.                       (Jan 01, 2012 - Jan 07, 2012)

Table 1.1669.a   GPS week: 1669   MJD: 55927.000-55933.000

         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  253|    0     0     5    72   -34   -18  -.32    9    9 |    -344    -385     19     77
        |    0     0     1     3    24    10   .03           |     321     679
emr   91|    0     2    12   -20  -104   -36   .36   18   18 |     741     -99     15    100
        |    1     1     0    17    23    12   .05           |    1000     841
esa  131|    0     0     0   -90   167    53   .07    7    7 |    -119    -194     13    123
        |    1     0     1    21    20     8   .02           |    1567    2392
gfz  194|   -1    -1    -3    72  -104    -4   .47   11   11 |      -8     -36     29    108
        |    0     1     1    72    89    19   .03           |     382     697
grg  124|    1     0   -10    50  -112   -22   .59   15   14 |      86    -212     50    219
        |    0     0     2    10    19    10   .05           |     179     389
igr  n/a|    0     0     0     1   -51   -28  -.10    5    5 |   -3003    -134     18     73
        |    0     0     0     8    26    12   .02           |    1016     963
jpl  137|    0    -1     5    92    63    21   .44   14   14 |    2438    -147     17     79
        |    0     1     1     9    17    35   .04           |    1035     738
mit  273|    0     0    -4    40  -126   -25  -.50   11   10 |       3    -323     23    169
        |    0     0     0    37    36    16   .02           |     238     524
ngs  221|    0     0    -1   -51    21   -27  -.33   10    7 |    -385    -338   2155   3613
        |    0     0     1    35    52    11   .04           |     288     503
sio  246|    0     1     0  -283    85    23  -.25   18   17 |     ---     ---    ---    ---
        |    1     1     0    37    40    14   .02           |     ---     ---


Table 1.1669.b   GPS week : 1669   MJD: 55927.000-55933.000   

         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  |    5    5    5    5    5    5    5 |
   2  |    5    4    5    5    5    5    4 |
   3  |    6    6    5    5    5    4    4 |
   4  |    4    3    3    3    3    4    3 |
   5  |    5    4    4    4    4    4    4 |
   6  |    4    4    4    4    5    4    5 |
   7  |    4    4    4    4    4    5    5 |
   8  |    4    4    4    4    4    4    4 |
   9  |    3    3    3    3    4    3    3 |
  10  |    4    4    4    4    4    4    4 |
  11  |    4    4    5    4    4    4    4 |
  12  |    5    6    5    5    5    5    5 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    4    3    4    4    4    5 |
  15  |    4    4    4    3    4    4    4 |
  16  |    6    5    5    5    5    5    5 |
  17  |    4    4    4    4    4    4    4 |
  18  |    5    5    4    4    5    5    4 |
  19  |    5    5    5    5    5    4    4 |
  20  |    5    4    4    5    5    5    4 |
  21  |    5    4    4    4    4    5    4 |
  22  |    4    4    4    4    4    4    4 |
  23  |    4    4    4    4    4    4    4 |
  25  |    4    4    4    4    4    4    4 |
  26  |    5    6    5    6    6    5    6 |
  27  |    4    4    4    4    4    4    4 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    5    4    5    5    4    5 |
  30  |    4    5    5    4    5    4    4 |
  31  |    4    4    4    4    4    4    4 |
  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 2.1669.0   GPS week: 1669   Day: 0   MJD: 55927.000                            

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  253|    0     0     4    68   -67   -25  -.30   10   10 |      77   -1837     22     76
        |                     53     3                       |
emr   91|    0     2    13   -30   -95   -45   .43   18   18 |    1192     515     20    125
        |                    -16   -24                       |
esa  131|    0     0     0   -97   162    56   .08    7    7 |    -317     377     16    127
        |                     15   -25                       |
gfz  194|    0     0    -2   149   -44    11   .48   11   11 |       6    -291     28    101
        |                    -16     6                       |
grg  124|    1     0   -10    41  -139   -21   .50   18   18 |     112    -377     50    200
        |                     33    -4                       |
igr  n/a|    0     0     1   -10   -57   -52  -.08    6    6 |   -2250     242     22     67
        |                    -10   -19                       |
jpl  137|    0     0     6    77    56   -13   .49   15   15 |    3234     267     19     80
        |                     -8   -86                       |
mit  273|    0    -2    -4    90  -121   -13  -.51   12   10 |      58    -781     21    160
        |                    -14    38                       |
ngs  221|    0     0     0  -100   -30   -26  -.41   12    8 |     -72   -1356   1966   3428
        |                     48   -27                       |
sio  246|    0    -1    -1  -245    79    14  -.24   18   17 |     ---     ---    ---    ---
        |                    141   -33                       |

Table 2.1669.1   GPS week: 1669   Day: 1   MJD: 55928.000                            

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  253|    0     0     3    72     0   -15  -.30    9    9 |    -125    -262     22     92
        |                     -2   -43                       |
emr   91|    0     2    12   -34   -97   -48   .39   18   18 |    2230    -863     11    102
        |                    -13    27                       |
esa  131|    0     0     1  -100   198    47   .05    8    8 |    -109   -1634     14    137
        |                     35   -32                       |
gfz  194|   -1     0    -1    23  -124    11   .46   10   10 |     310    -695     25     98
        |                    -36     4                       |
grg  124|    0     0   -13    44   -87   -31   .56   15   14 |     342    -579     48    204
        |                      8   -64                       |
igr  n/a|    0     0     0     4   -21   -27  -.09    5    5 |   -1424   -1396     20     79
        |                     -1    -6                       |
jpl  137|    0    -1     2    93    91     7   .43   13   14 |    3970   -1039     18     96
        |                    -13  -106                       |
mit  273|    0    -1    -3   -11  -150   -12  -.50   10    9 |     317    -463     22    183
        |                      4    59                       |
ngs  221|    0     0    -1   -49    41    -6  -.34    9    7 |    -139    -335   2213   3927
        |                    -60   -30                       |
sio  246|    0     0     0  -348    56    44  -.25   18   16 |     ---     ---    ---    ---
        |                    151   -14                       |

Table 2.1669.2   GPS week: 1669   Day: 2   MJD: 55929.000                            

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  253|    0     0     4    75   -50   -26  -.28    9    9 |    -500    -351     17     71
        |                     33     4                       |
emr   91|   -2     2    12   -33  -148   -21   .38   19   19 |    1460   -1335     15    101
        |                     -8    32                       |
esa  131|    2     0     1  -103   161    43   .09    8    8 |   -2180    1341     11    108
        |                     32    -7                       |
gfz  194|   -2    -1    -3   103     4     6   .52   11   11 |    -281      38     27    117
        |                     22   -25                       |
grg  124|    1     1    -8    70  -125   -13   .59   15   14 |      59    -816     54    218
        |                     15   -10                       |
igr  n/a|    0     0    -1     6   -81   -27  -.07    4    4 |   -2678   -1313     18     76
        |                      8    11                       |
jpl  137|    0     0     4    87    49    -8   .49   14   14 |    3045   -1098     17     83
        |                     -5   -95                       |
mit  273|    0    -1    -3    59   -86    -9  -.49   10    9 |     216   -1190     20    125
        |                    -16    42                       |
ngs  221|    0     0    -4   -62   -22   -23  -.31   10    8 |    -524    -355   2590   3640
        |                    -17   -12                       |
sio  246|    0     1    -1  -265   111    34  -.24   16   16 |     ---     ---    ---    ---
        |                    126   -30                       |

Table 2.1669.3   GPS week: 1669   Day: 3   MJD: 55930.000                            

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  253|    0     0     4    66   -16   -34  -.34    9    9 |    -283    -199     18     79
        |                      4   -38                       |
emr   91|    0     1    11     9  -120   -27   .31   18   19 |     667    -517     14     89
        |                    -54    46                       |
esa  131|    0     0     0  -121   170    53   .07    7    7 |    2694   -3277     12    124
        |                     26   -17                       |
gfz  194|   -1     0    -1   162  -144     4   .45   10   11 |     403    -398     28     96
        |                     13    13                       |
grg  124|    0     0    -8    41   -86   -25   .62   14   13 |     285    -110     54    231
        |                     38   -58                       |
igr  n/a|    1     0     0    -4   -30   -29  -.13    5    5 |   -3609     -14     16     76
        |                     -9    -4                       |
jpl  137|    1    -2     5    95    73    71   .40   14   14 |    2194    -113     15     75
        |                    -47   -83                       |
mit  273|    1    -1    -4    66  -139   -36  -.49   12   11 |    -142     -57     25    217
        |                    -22    54                       |
ngs  221|    0     1    -1   -86    46   -27  -.31   10    7 |    -334    -186   2304   3410
        |                     11   -44                       |
sio  246|    0     1    -2  -249    63    22  -.26   16   18 |     ---     ---    ---    ---
        |                    115   -25                       |

Table 2.1669.4   GPS week: 1669   Day: 4   MJD: 55931.000                            

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  253|    0     0     6    74   -21   -10  -.32    9    9 |    -175    -388     19     72
        |                     19     4                       |
emr   91|    0     4    10    -2   -85   -53   .36   19   19 |    -866    1047     14    102
        |                    -22    13                       |
esa  131|    0     0     0   -72   165    62   .08    7    7 |     350   -2220     13    117
        |                     42    -4                       |
gfz  194|   -1    -1    -2    83  -227   -25   .46   12   10 |     143    -105     30    116
        |                      5    -4                       |
grg  124|    0     0    -9    44  -110   -21   .65   15   14 |     -30      54     45    240
        |                     21   -62                       |
igr  n/a|    0    -1     0     0   -31   -10  -.09    5    5 |   -4576    1388     18     75
        |                    -10    10                       |
jpl  137|    0     0     5    96    55    61   .45   14   14 |     973     998     17     81
        |                    -47   -63                       |
mit  273|    0     0    -4    32  -169   -54  -.47   12   11 |    -119     -66     27    185
        |                     -4    67                       |
ngs  221|    0     0    -1   -40   103   -42  -.33   10    7 |    -201    -413   2254   3680
        |                    -29   -99                       |
sio  246|   -1     1     0  -272    43    26  -.26   17   16 |     ---     ---    ---    ---
        |                    119   -21                       |

Table 2.1669.5   GPS week: 1669   Day: 5   MJD: 55932.000                            

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  253|    0     0     7    73   -25    -4  -.32    9    9 |    -907     207     20     81
        |                     15   -26                       |
emr   91|    0     1    12   -20   -79   -26   .37   19   19 |     325      51     19     98
        |                     -9     9                       |
esa  131|    1     0     0   -67   182    44   .09    7    7 |     304     275     14    131
        |                     55    28                       |
gfz  194|   -1    -2    -3    13  -184     1   .48   12   11 |    -718    -260     33    107
        |                     -3    20                       |
grg  124|    0     0    -8    56  -108    -4   .61   15   14 |    -176     231     53    218
        |                      4   -53                       |
igr  n/a|    0     0     0    16   -45   -21  -.08    4    4 |   -3052     -53     17     70
        |                     19    26                       |
jpl  137|    0    -2     4   107    76    -4   .42   15   15 |    2086    -197     19     77
        |                     -2   -92                       |
mit  273|    0     0    -4    48  -151   -19  -.49   10   10 |    -387     362     27    174
        |                     -5    51                       |
ngs  221|    0     1    -3   -14    49   -35  -.29   10    7 |    -901     161   1861   3952
        |                    -70   -67                       |
sio  246|    0     3     0  -289    79    23  -.23   18   18 |     ---     ---    ---    ---
        |                    142   -50                       |

Table 2.1669.6   GPS week: 1669   Day: 6   MJD: 55933.000                            

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  253|    0     0     6    74   -59   -14  -.37    9    9 |    -496     129     20     70
        |                    -13    19                       |
emr   91|    1    -1    10   -29  -104   -31   .27   18   18 |     183     404     15     86
        |                    -21   -10                       |
esa  131|    0     0     0   -67   132    64   .04    6    6 |   -1581    3774     16    117
        |                     42    20                       |
gfz  194|    0     0    -4   -29    -9   -37   .43   11   11 |      78    1458     34    121
        |                     -4    11                       |
grg  124|    1     0   -11    57  -125   -37   .58   15   14 |      16     113     51    222
        |                     -6    13                       |
igr  n/a|    0     0     0    -4   -91   -35  -.12    5    5 |   -3432     204     19     69
        |                     18    38                       |
jpl  137|    0    -1     6    90    40    39   .38   14   14 |    1566     148     15     66
        |                    -34   -70                       |
mit  273|    2     0    -4    -2   -70   -28  -.52   14   12 |      82     -66     24    144
        |                      4     8                       |
ngs  221|    0     0    -1    -4   -35   -31  -.33    9    6 |    -524     118   1898   3258
        |                    -63    34                       |
sio  246|    3     3     0  -317   163     0  -.27   23   18 |     ---     ---    ---    ---
        |                    141   -85                       |

       
       
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 3.1669.0   GPS week: 1669   Day: 0   MJD: 55927.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   14    8   12   14    5   22   16   12   25    5 |    67   69   74   73   82   71   76   78   72   63    71
   2  |   11   13    4   22   17    7   14    8    9   30    5 |    22   29   32   52   35   30   29   25   28   26    29
   3  |   13   17    6   12   15    8   13   30   18   10    5 |    22   32   24   28   23   22   28   21   27   19    21
   4  |   10    9    5   12   18    6    9   10    6   22    3 |    28   34   35   44   49   36   33   35   35   30    35
   5  |   10   18    9    8   17    6   17    9    9   25    4 |    18   35   22   25   34   20   34   14   17   27    21
   6  |    8   17    7   11   13    7   12    7   16   13    4 |    26   32   29   29   28   28   30   29   33   28    28
   7  |    7   20    7   10   22    5   13   10   11   13    4 |    14   30   22   24   26   18   21   16   20   17    17
   8  |   10   12    6   10   22    6   11    9    8   22    4 |    16   23   18   23   25   17   20   18   18   27    16
   9  |    8   14    5    9   13    7   11    9    7   12    3 |    13   21   18   20   20   15   20   16   14   16    15
  10  |   12   11    6   13   17    6   11    8    7   22    4 |    24   28   29   32   37   29   28   28   30   29    28
  11  |    6   15    6    9   13    4   14   15   12   15    4 |    41   49   45   48   58   44   50   49   46   43    45
  12  |    8   24    6   15   23    6   26   12   12   13    5 |    16   32   22   28   34   20   32   19   20   20    19
  13E |    6   17    6   10   25    5   15    8   14   10    4 |    11   25   15   20   18   13   20   13   16   15    12
  14E |    8   17    6    7   22    4   10    9    9   13    3 |    18   27   24   24   23   21   24   22   24   23    22
  15E |   10   16    8    9   20    5   14   14   10   14    4 |    38   41   42   43   41   40   41   34   45   38    38
  16  |   12   27    7   13   23    7   18   20   13   18    5 |    24   36   21   25   28   23   29   15   28   19    21
  17  |   10   18    7   12   18    7   15    6    9    7    3 |    20   29   19   21   25   16   24   14   15   16    16
  18  |    9   25    6   10   14    7   17    9   11   32    5 |    19   38   23   22   23   19   30   22   22   21    20
  19  |    6   23    6   11   17    5   15   13   14   17    4 |    18   37   23   24   30   20   30   19   25   24    21
  20  |    9   19   13   13   11    6   18   11   10   20    4 |    16   31   25   16   26   18   29   14   16   17    17
  21  |    9   14    4    6   12    6   13   12   13   34    4 |    29   29   32   31   38   31   32   38   34   43    32
  22  |   15   23    6   10   15    6   10    6    7   15    4 |    18   34   26   26   32   20   30   22   20   23    23
  23E |    6   16    7   11   21    4   16    7   12   10    4 |    44   50   49   51   51   48   48   45   47   48    46
  25  |    9   15    7   11   19    5   14    9   13    9    4 |    25   29   23   25   28   25   27   21   32   25    23
  26E |   19   22    8    9   21    8   19    9   21   10    5 |    24   37   22   29   37   21   35   18   26   22    21
 X27  |   10   15    6   10   15    7  ---   14    9  ---    4 |    13   23   17   21   21   16  ---   19   16  ---    14
  28  |   12   15    7    9   29    6   11   13    6   12    4 |    18   27   18   19   27   17   22   18   17   16    16
  29  |    8   25    7    8   12    6   19   13   15   14    4 |    23   39   23   27   26   23   26   23   28   26    23
  30  |   13   21    6   11   16    6   14   10    8   15    4 |    11   29   16   19   22   14   22   16   11   21    14
  31  |   10   18    8    9   22    6   15   12   10   12    4 |    14   27   22   23   35   19   24   17   16   14    18
  32  |    9   16   12    8   15    6   15    8   10   14    4 |    15   22   28   27   30   19   25   18   15   20    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18    7   11   18    6   15   12   12   18      |T   22   33   27   29   32   24   30   24   26   25    24
 WRMS |   10   18    7   11   18    6   15   10    8   17      |NE  21   32   26   28   32   24   30   24   25   25    24
 MEDI |    9   17    6   10   17    6   14   10   10   14      |MD  19   31   23   25   28   20   29   19   24   23    21

Table 3.1669.1   GPS week: 1669   Day: 1   MJD: 55928.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   13   14    9   11   11    6   22   13    7   16    4 |    43   40   43   43   51   41   50   47   41   37    43
   2  |    7   13    6   21   15    4   13    6    7   31    4 |    15   18   19   41   22   19   20   13   18   18    18
   3  |   12   16    8   12   12    8   11   25   10   10    5 |    18   26   20   25   24   16   27   21   14   16    19
   4  |    7    9    6    8   13    5    7    8    6   17    3 |    24   23   25   28   33   25   24   27   28   27    25
   5  |    8   18    5    7   14    5   14    9    9   24    3 |    13   27   18   22   30   15   28   10   13   22    17
   6  |    8   14    7   10   12    7   12   10    9   12    3 |    27   31   30   31   31   30   32   29   27   28    28
   7  |    7   21   13    6   22    3   11    7    6   11    4 |    14   26   21   20   27   15   21   15   13   14    15
   8  |    9   15    6    6   18    5   10    8    7   24    3 |    15   19   16   18   17   14   17   15   13   26    14
   9  |    7   13    6   10   12    4    9    7    5   14    3 |    18   20   22   25   23   17   24   18   16   16    19
  10  |   12   11    9    7   15    6    7    9    5   23    3 |    20   18   18   19   28   19   19   18   21   19    18
  11  |    7   16    7    8   14    5   15   13    9   14    4 |    27   33   25   27   41   26   37   31   24   29    28
  12  |    7   25    7   15   19    3   27    7    8   15    5 |    13   29   20   25   27   16   31   16   21   17    18
  13E |    6   16    8    7   22    3   10    7    7   12    3 |    15   21   18   20   22   17   23   17   13   16    15
  14E |    7   17    7    7   16    3   13    6   10   10    3 |    19   23   22   19   20   18   21   20   25   22    20
  15E |    9   19    6   11   14    6   15    7   12   13    4 |    34   35   37   43   38   35   36   32   37   32    34
  16  |    9   21    9   13   17    6   14    9    7   12    4 |    19   25   20   19   26   15   22   15   19   16    18
  17  |    7   17    8    8   17    4   10    8    9    8    3 |    16   25   17   17   23   16   20   15   17   14    15
  18  |    7   26    7   11   13    5   16   10    8   28    4 |    17   29   17   18   18   14   22   17   17   15    15
  19  |    8   25   10   11   15    7   14    8    9   19    4 |    17   31   18   24   29   16   25   16   19   17    18
  20  |    9   19    9    9   11    4   15   10    8   22    4 |    14   26   19   15   23   14   25   12   13   12    15
  21  |    8   16    6    9    9    3    9   10    9   37    3 |    22   24   22   16   19   21   21   27   27   30    21
  22  |   13   21    7    8   11    6   12    6    9   15    4 |    15   24   17   15   23   13   22   11   11   13    13
  23E |    7   19    8    7   15    4   12    7   10   11    3 |    49   54   52   52   51   51   53   51   50   50    50
  25  |   10   17    8   14   15    2   12   10   10   10    4 |    19   27   25   26   26   18   26   17   21   18    20
  26E |   17   20    8    8   19    5   16   12   20   14    5 |    18   31   23   26   33   19   31   18   28   20    21
  27  |    9   13    6   13   12    5   10   15    8   23    4 |    17   20   23   24   23   18   21   22   16    4    19
  28  |    8   16    8    9   20    4   10   10    5   15    4 |    16   26   22   22   25   18   21   20   18   19    18
  29  |   10   27    8   10   14    4   14   10    6   16    4 |    21   33   23   22   25   18   24   20   19   20    20
 X30  |   13   24    6    8   13    4  ---    9    7  ---    4 |    16   34   21   20   21   17  ---   19   18  ---    18
  31  |    7   18    7    9   19    4   11    9   11   13    4 |    17   27   24   22   32   17   24   18   20   15    19
  32  |    7   17    9    6   15    5   14    9   11   12    4 |    15   23   21   23   27   18   24   16   15   17    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18    8   10   15    5   13   10    9   18      |T   20   27   23   24   27   20   26   20   21   20    20
 WRMS |    9   18    8   10   14    5   14    9    7   16      |NE  18   26   21   23   26   18   25   19   19   19    19
 MEDI |    8   17    7    9   15    5   12    9    8   14      |MD  17   26   21   22   26   18   24   18   19   18    19

Table 3.1669.2   GPS week: 1669   Day: 2   MJD: 55929.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8   14    8   17   11    5   23   13   13   17    4 |    48   52   53   61   59   54   58   57   52   48    52
   2  |    9   14    5   21   12    5   14    7    9   29    4 |    21   29   26   44   27   28   29   25   30   25    25
   3  |    8   15   10   11   13    3   10   20   11   12    4 |    19   29   18   24   23   15   28   14   17   16    16
   4  |   10   10    4   13   11    5    7    7    8   14    3 |    30   35   32   37   34   35   32   34   33   35    31
   5  |    9   17    6   12   13    5   14    7    9   21    4 |    16   31   21   21   33   19   31   14   21   25    18
   6  |    6   15    9    9   12    3   11   12   11   11    3 |    26   32   23   29   31   24   34   25   28   26    25
   7  |    7   21    9   10   21    4   13    6    9   11    4 |    16   27   19   19   26   16   21   16   17   14    14
   8  |    9   12    9    6   18    4   10    7    6   22    3 |    15   19   15   17   16   15   19   16   18   24    12
   9  |    8   14    5    8   11    2   11    9    9    8    3 |    14   23   18   19   23   16   24   19   19   16    15
  10  |   11   11    9   10   13    4    9    8    7   18    3 |    20   25   22   26   30   24   25   24   25   24    22
  11  |    9   18   13   19   11    5   14   13   13   16    4 |    27   40   34   44   45   35   41   36   37   32    34
  12  |   11   25    8   13   18    4   23    8    9   13    4 |    15   32   17   22   28   16   30   15   17   16    15
  13E |    6   24    6   11   14    4   10    9    9   15    3 |    11   30   14   21   28   16   25   16   17   19    13
  14E |    7   15    8    7   12    3   10    7    6   10    3 |    16   22   16   20   20   17   20   19   17   21    16
  15E |    8   14   10   10   13    3   12    8   12   17    4 |    36   42   40   42   44   38   38   32   40   37    36
  16  |    7   25   12   11   17    6   20   13    9   13    4 |    12   29   16   20   23   13   26   12   17   12    12
  17  |    9   18    5    8   17    3   14    8    7    8    3 |    17   30   16   17   24   15   24   14   21   14    15
  18  |   10   24    8   11   11    5   16    9    8   23    4 |    15   31   16   21   19   14   25   18   15   15    14
  19  |    6   26    7    9   18    5   15    9   13   20    4 |    19   32   17   22   29   17   25   16   23   21    17
  20  |    9   17    7   13   12    5   17   10    8   22    4 |    19   30   20   20   26   21   31   18   19   21    17
  21  |    6   13    5    8    8    5   10    9   11   31    4 |    24   24   24   23   28   25   25   31   30   31    24
  22  |   13   23    8   11   11    5   13    6    5   14    4 |    13   29   13   18   22   11   24   12   13   14    10
  23E |    6   18    6    8   16    5   14    7   10   11    3 |    29   36   32   35   37   30   37   28   31   30    30
  25  |   11   19    6   11   15    3   14    7    6    9    3 |    21   31   18   17   27   18   26   17   22   19    17
  26E |   15   21    7   10   22    6   16    7   23   13    5 |    21   35   21   30   40   20   34   18   31   21    22
 X27  |   10   13    6    9   14    3   12    9   10  ---    3 |    11   21   15   19   22   14   20   17   16  ---    13
  28  |    9   14    7   13   21    3   11   11    9   12    4 |    14   24   13   18   24   15   21   17   20   14    12
  29  |    9   24    7   13   13    5   12    8    7   13    4 |    20   35   21   23   26   19   24   19   21   18    19
  30  |   11   21   14    9   18    4   12    9   10   12    4 |    10   28   21   17   16   12   24   13   19   17    13
  31  |    7   20    7   11   20    6   12   12    7   10    4 |    13   28   18   18   33   13   25   17   16   13    15
  32  |    8   17    7    7   13    5   15    8   12   13    3 |    16   22   21   26   26   19   24   19   19   17    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    8   11   15    4   14   10   10   16      |T   19   30   21   25   28   20   28   20   23   21    19
 WRMS |    9   19    8   11   14    4   14    9    8   16      |NE  18   29   21   24   27   20   27   20   22   21    19
 MEDI |    9   17    7   11   13    5   13    8    9   13      |MD  17   30   19   21   27   17   25   18   20   19    17

Table 3.1669.3   GPS week: 1669   Day: 3   MJD: 55930.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8   13   10   11   10    5   21   15    9   18    4 |    57   56   61   59   64   57   61   64   63   54    58
   2  |    9   11    5   17   12    5   14    9    6   29    4 |    18   20   23   37   23   21   21   23   21   23    21
   3  |   11   19    7   13   16    6   15   23   16   12    5 |    23   36   26   28   28   23   32   25   31   28    26
   4  |    9    8    5   10    9    6    9   10    8   13    3 |    20   22   25   30   29   24   23   31   25   30    25
   5  |    8   17    5    9   12    4   16    8    7   20    3 |    15   27   18   22   31   14   29   12   14   22    18
   6  |   12   17    6   11   15    4   13   16    9   11    4 |    68   71   69   69   66   67   72   73   67   71    68
   7  |    5   21   10    7   16    5   13   11    8    9    3 |    14   25   19   20   24   17   21   17   17   14    15
   8  |    8   15    8    4   14    7   12   10   12   21    4 |    15   19   15   17   17   16   20   15   19   24    13
   9  |    7   13    5    7   10    4    9    9    8   10    3 |    16   23   18   24   20   17   21   17   20   17    16
  10  |   12   12    7    9   11    7    9   11    6   20    3 |    21   23   25   26   29   22   22   26   21   27    22
  11  |    7   16    8    8   11    5   13   13   10   13    3 |    34   39   38   39   46   35   41   39   37   33    36
  12  |    9   25    7   15   15    5   24   11    7   15    4 |    17   33   19   29   27   18   30   16   19   18    18
  13E |    6   16    9   11   18    5   15   11   11   12    4 |    15   24   20   25   21   17   27   15   22   18    17
  14E |    5   15    7    9   15    4   11    7   10   15    3 |    21   28   24   25   25   24   26   24   24   26    24
  15E |    6   16    5    9   13    4   13    8   10    9    3 |    25   30   27   34   30   25   28   25   24   28    26
  16  |    9   25    9   11   16    5   18   14   10   11    4 |    17   30   20   20   23   16   26   17   21   18    18
  17  |    8   20    8    9   17    5   14   13   12    9    4 |    21   30   22   19   25   19   24   15   24   15    18
  18  |    8   24    6   11   10    4   14    9    7   24    4 |    18   32   20   22   20   19   27   20   24   24    19
  19  |    8   25    8    9   16    4   14   10   10   19    4 |    18   33   24   25   29   20   28   16   24   21    20
  20  |    8   19    9    9   11    7   18   13    9   24    4 |    19   33   26   21   27   20   32   15   21   17    20
  21  |    7   13    6   11    8    5   10   10   10   29    4 |    28   26   26   29   32   29   28   34   33   33    28
  22  |   13   21    8   11   12    4   13    8    7   14    4 |    16   31   22   21   26   17   25   21   18   24    19
  23E |    8   15    6    7   19    6   15    9   11   10    3 |    61   61   63   62   63   62   60   64   62   63    61
  25  |   11   19    8    8   15    5   14    9    5   10    3 |    23   32   24   21   23   22   27   22   23   23    21
  26E |   17   22    8   11   23    7   19   11   22   10    5 |    20   32   23   29   39   19   33   19   27   20    21
 X27  |    9   15    6    8   12    4   11   12    9  ---    3 |    17   25   21   24   23   20   23   18   21  ---    19
  28  |    7   17    7   11   13    3   11   14    6   13    3 |    17   27   17   21   23   15   21   18   18   17    15
  29  |    8   26    8   12   15    5   15   10    9   14    4 |    22   34   19   24   26   19   21   20   21   21    19
  30  |   12   21    7   12   15    3   15   12    8   11    4 |    11   30   15   15   15   14   24   14   18   17    14
  31  |    7   19    8    8   19    5   13   14    9   10    4 |    15   27   18   23   32   17   24   17   21   15    18
  32  |    7   17    8    5   13    4   13    9   13   15    3 |    13   24   21   26   27   17   27   16   22   17    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18    7   10   14    5   14   12   10   16      |T   23   31   26   28   30   23   29   24   26   25    24
 WRMS |    9   19    7   11   13    5   14   11    7   18      |NE  22   31   25   27   29   22   28   23   25   24    23
 MEDI |    8   17    7    9   14    5   14   11    9   13      |MD  18   30   22   25   27   19   27   19   22   22    19

Table 3.1669.4   GPS week: 1669   Day: 4   MJD: 55931.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   15   16    8   16   12    6   22   17    8   25    5 |    49   51   54   51   58   48   54   52   50   46    50
   2  |    9   17    5   21   15    5   13   11    8   32    5 |    17   24   23   40   23   20   23   23   20   23    21
   3  |   10   16    5   13   16    5   13   19    8   19    4 |    21   26   22   25   24   20   27   17   20   21    21
   4  |   10   11    6    9   13    6    8   10    8   13    3 |    19   21   21   23   25   22   20   27   24   28    22
   5  |    8   17    5    9   13    5   15    8    6   19    3 |    14   28   20   23   31   16   30   11   15   21    18
   6  |    9   16    7   15   16    4   14   18   12   13    4 |    41   45   43   47   44   44   47   37   49   43    43
   7  |    6   21    8    9   16    4   12    8   10   11    3 |    13   24   18   20   23   13   21   18   14   15    15
   8  |    9   16    4    5   16    4   13   10    8   22    3 |    16   17   14   21   16   14   23   16   17   25    15
   9  |    8   13    6   10   12    7    9   11    9   12    3 |    22   25   24   28   26   22   26   22   19   28    22
  10  |   10   12    5    9   12    5    7   13   10   19    3 |    16   19   21   22   26   22   20   23   23   23    19
  11  |    7   16    7   12   12    5   13   12    7   14    3 |    26   37   33   32   43   30   38   32   30   27    31
  12  |   11   27    7   14   19    5   23   13    5   15    5 |    16   31   16   25   25   15   29   14   16   18    16
  13E |    5   22    7    7   16    4   14   10   12   14    4 |    13   27   17   18   24   13   23   11   14   15    14
  14E |    8   15    6   10   17    4   10    9    7   15    3 |    21   23   24   23   21   21   21   20   21   26    21
  15E |    6   17    5   14   13    4   13    8    8    8    3 |    24   26   28   33   26   25   27   21   28   24    25
  16  |    5   26    7   10   20    4   18   17    8   15    4 |    17   29   19   17   22   17   24   19   17   18    17
  17  |    8   19    7    8   17    5   14   12    7    9    3 |    17   26   17   18   24   14   21   13   17   14    15
  18  |    8   24    7   13   12    4   14    9   10   26    4 |    18   30   18   23   19   17   24   18   19   22    17
  19  |    7   29    9   18   19    5   14   10    9   16    4 |    17   32   20   23   29   17   23   15   15   19    17
  20  |    8   19    9    8   11    3   17   14    7   26    4 |    16   27   19   20   25   17   28   16   19   21    17
  21  |    6   14    7   10    9    6   12    8   10   29    4 |    26   24   27   27   23   25   26   30   25   28    26
  22  |   13   22    9   13   12    6   13    8    7   14    4 |    15   29   19   20   23   16   24   15   15   20    17
  23E |    5   17    6    8   14    3   15    7   10    8    3 |    29   34   33   37   39   31   33   33   36   30    33
  25  |   13   18    6   12   15    4   14   10    5    8    3 |    25   29   22   21   22   21   25   20   22   20    20
  26E |   17   18   13   10   21    5   17   12   26    9    6 |    19   28   24   25   34   21   31   20   30   21    21
 X27  |   12   14    5   12   14    8   13   12    9  ---    4 |    17   24   22   30   25   18   24   18   19  ---    19
  28  |    7   16    6   11   17    3   12   15    6   15    4 |    16   24   16   20   23   15   22   16   19   16    15
  29  |    8   28    9   12   15    4   18    9   11   13    4 |    18   31   15   23   25   17   23   18   22   19    17
 X30  |   11   18    6   11   17    5  ---   15    5  ---    4 |    14   26   17   17   19   13  ---   18   13  ---    15
  31  |    8   20    6    9   19    5   14   13    7    9    4 |    16   27   20   25   33   16   24   18   15   14    18
  32  |    8   18    7    6   12    4   15    8    8   17    3 |    14   23   21   24   27   18   24   16   18   18    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    7   12   15    5   14   12   10   17      |T   20   27   22   25   27   20   26   20   21   22    21
 WRMS |    9   19    7   10   14    5   14   11    7   16      |NE  19   28   22   25   27   20   26   20   21   22    20
 MEDI |    8   17    7   10   15    5   14   11    8   15      |MD  17   27   21   23   25   18   24   18   19   21    19

Table 3.1669.5   GPS week: 1669   Day: 5   MJD: 55932.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   14    6   15   11    5   24   13    7   29    5 |    40   41   43   41   48   39   52   43   40   38    40
   2  |    8   18    4   20   12    3   14   11   10   33    5 |    15   24   22   37   21   19   22   23   20   20    19
   3  |    9   15    7   18   13    4   11   12    8   19    4 |    23   26   25   30   26   20   29   18   21   23    22
   4  |   11   10    5    8   12    4   10   11    9   14    3 |    20   21   20   24   25   20   20   29   25   26    21
   5  |    8   17    5   10   12    3   14    9   12   23    4 |    13   27   19   26   30   14   27   12   16   27    17
   6  |    9   17    6   14   11    5   12   16    8   12    4 |    51   54   53   52   53   51   57   49   53   50    52
   7  |    6   21   11   14   19    4   13   10    9   13    4 |    12   26   21   23   24   13   20   18   19   12    14
   8  |    8   13    6   10   18    3   12    9    8   24    4 |    12   17   17   15   16   12   16   16   19   22    13
   9  |    8   13    7    7   15    5   10    9    8   10    3 |    16   20   21   22   22   15   20   17   13   14    16
  10  |    8   15    5    8   14    4    9   11    8   20    3 |    15   21   18   22   26   18   19   22   19   25    18
  11  |    8   20    7   15   12    3   15   10   12   15    4 |    26   35   34   30   41   27   39   28   28   26    30
  12  |   10   26    6   14   19    5   21    9   10   15    4 |    11   28   16   28   27   13   24   11   16   16    13
  13E |    6   17    7   10   20    3   13   10   12   15    4 |    11   23   17   18   18   12   22   15   15   16    12
  14E |    8   14    8    9   12    3   11   10   11   12    3 |    21   24   25   23   22   22   24   24   24   26    21
  15E |   10   14    5   13   12    5   16   12   14   14    4 |    27   34   31   37   31   30   31   28   30   32    28
  16  |    7   26    7   13   17    5   18   15    6   13    4 |    11   28   19   17   23   12   23   20   13   17    14
  17  |    8   21    7    8   17    3   16   11    7    9    4 |    19   27   16   19   24   15   22   16   17   16    14
  18  |    8   19    9   17   13    5   14    7    7   33    4 |    15   24   18   24   20   14   20   14   15   27    13
  19  |    6   25    8   11   15    3   14    8    9   15    4 |    17   29   24   21   31   17   26   16   17   19    18
  20  |    8   18    8   11   10    5   18   12    9   28    4 |    16   28   22   21   26   17   30   17   17   21    17
  21  |    7   25    7   12   10    5   12    7    9   30    4 |    22   31   24   26   25   22   22   29   24   23    23
  22  |   11   20   10   13    8    3   12    8    8   18    4 |    14   26   19   19   21   12   22   14   11   18    14
  23E |    6   18    5   11   18    3   13    6   13   11    3 |    38   41   38   41   32   39   37   41   37   40    37
  25  |   11   15    5   11   16    3   15    7    6    9    3 |    17   22   20   25   23   15   23   17   19   17    16
  26E |   18   24    8   13   16    6   19   11   18    7    5 |    17   32   22   23   30   18   32   18   22   20    18
 X27  |   11   13    5    8   16    4   11    6    8  ---    3 |    14   18   17   19   18   13   19   14   13  ---    14
  28  |    7   13    7   14   20    6   14   14    7   14    4 |    14   19   14   18   26   12   18   17   14   14    11
  29  |    8   23    6   12   14    4   15   10   10   13    4 |    20   27   21   24   29   16   22   17   21   15    18
  30  |   10   18    8   11   15    3   16   11    9   16    4 |    12   27   20   18   17   14   20   20   14   21    15
  31  |   10   22    7   10   15    3   12   10    9   12    4 |    15   26   21   22   30   16   22   17   15   12    16
  32  |    9   16    6    8   12    3   18    8    7   14    3 |    13   21   20   22   22   16   23   15   17   15    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    7   12   15    4   15   10   10   18      |T   18   27   23   25   26   19   25   21   20   22    19
 WRMS |    9   19    7   11   14    4   15   10    7   18      |NE  18   26   22   24   26   18   25   20   19   21    19
 MEDI |    8   18    7   11   14    4   14   10    9   14      |MD  16   26   21   23   25   16   22   17   19   20    17

Table 3.1669.6   GPS week: 1669   Day: 6   MJD: 55933.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   14   15    5   14   11    7   20   13    7   38    4 |    63   68   69   70   77   66   75   70   69   62    68
   2  |    8   16    4   19   13    3   14   16    5   41    4 |    27   31   29   44   32   29   27   34   27   34    27
   3  |    9   15    5   11   13    5   13   16    9   28    4 |    24   31   23   30   31   22   33   19   17   25    22
   4  |    7    7    3   11   13    3   12   12    5   20    3 |    33   33   32   36   42   34   31   43   36   35    33
   5  |    8   13    4   12   13    5   14    9    6   27    3 |    19   33   21   26   34   20   33   18   19   30    21
   6  |    7   15    6   11   13    4   15   25   11   22    4 |    41   47   42   43   47   42   50   46   35   45    41
   7  |    8   22    7    9   19    5   13   18    8   15    4 |    20   36   26   25   34   24   29   24   22   20    21
   8  |   10   14    4    6   16    5   11   13    8   25    3 |    23   28   21   21   28   23   28   22   20   31    19
   9  |    8   14    4    7   11    4    9   12    9   13    3 |    26   32   29   31   32   27   32   27   30   31    27
  10  |    8   11    5    9   16    4    7   15    7   23    3 |    21   26   24   30   35   27   26   30   28   29    24
  11  |    9   22    5   11   16    7   13   10    8   21    4 |    40   49   45   47   59   42   51   46   45   41    45
  12  |   10   22    7   12   20    5   19   16    6   18    4 |    21   35   24   32   36   23   33   21   26   24    23
  13E |    6   14    6   10   21    3   13   13   11   18    4 |    18   28   21   25   25   20   27   17   22   22    19
  14E |   10   17    8   11   14    6   13   28   10   11    5 |    27   33   31   35   28   28   31   42   30   36    29
  15E |    9   15    5   13   14    3   17   14   10    8    4 |    28   33   31   39   34   31   35   31   31   33    29
  16  |    8   25    8    8   16    5   19   19    6   17    4 |    20   34   21   25   30   21   34   25   19   24    21
  17  |    9   16    6   10   20    3   15   14    7   14    4 |    24   31   19   17   29   21   26   19   21   19    18
  18  |    8   22    6   13   12    3   13    8    8   44    4 |    19   33   19   26   25   18   29   19   20   41    19
  19  |    8   24    7   10   20    5   11   13    6   19    4 |    23   35   26   27   37   22   31   21   20   24    23
  20  |    7   19    6    9   13    4   18   15    9   28    4 |    24   35   27   25   31   24   34   20   27   22    24
  21  |    7   16    5   10   10    5   10    8   12   38    3 |    32   31   31   35   36   34   32   39   34   39    31
  22  |   10   20    7   16   11    4   13    9    7   21    4 |    18   30   21   25   31   17   28   19   15   20    18
  23E |    6   16    6    8   12    4   14    8   10   12    3 |    44   47   48   43   47   45   45   45   46   44    44
  25  |    8   15    5   10   15    5   19   12    9   10    4 |    29   31   31   35   34   29   35   27   34   28    29
  26E |   21   21    5   15   18    7   22   13   14   23    6 |    34   40   32   36   43   30   43   31   34   30    32
  27  |   10   13    4    9   13    3   10    8    9  ---    3 |    21   25   22   23   26   22   29   19   25  ---    20
  28  |    7   14    5   10   18    4   11   16    8   16    4 |    23   29   21   22   30   22   28   23   23   21    20
  29  |    9   24    8   10   17    5   16   11    9   15    4 |    25   35   20   26   33   21   26   17   23   15    21
  30  |   11   15    4   10   16    3   14   17    8   18    4 |    16   27   19   20   21   16   24   20   15   22    17
  31  |    9   20    5    8   14    5   12   13    4   14    3 |    18   27   22   25   32   19   27   22   17   17    20
  32  |   10   18    5    8   12    6   13    8    9   19    3 |    17   26   25   25   30   21   28   20   25   18    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   18    6   11   15    5   14   14    9   23      |T   26   34   28   31   35   27   33   28   27   29    26
 WRMS |    9   18    6   11   14    5   14   12    6   18      |NE  25   33   27   30   35   26   33   27   26   28    25
 MEDI |    8   16    5   10   14    5   13   13    8   19      |MD  24   33   25   27   32   23   31   23   25   28    23



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 4.1669   GPS week: 1669   MJD: 55927.0-55933.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |U    8     8    22 |U    7     9    24 |U   13    14    22 |
emr | emr 2972 |    12     9    27 |U    9    11    28 |    17    15    28 |
esa | esa 2976 |    10    10    23 |U    7     9    26 |    13    13    23 |
gfz | gfz 2971 |U   10     9    22 |U    7    12    29 |U   15    16    24 |
grg | grg 2976 |    13    12    31 |U    7    10    31 |    12    18    29 |
igr | igr 2975 |     9     9    24 |     6     9    26 |    12    13    22 |
igs | igs 2973 |    10     9    22 |     7     9    25 |    13    13    22 |
jpl | jpl 2925 |U   13    11    35 |U    8    12    29 |    15    17    28 |
mit | mit 2976 |U   12    10    26 |U    8    12    31 |U   16    29    28 |



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 5.1669.0   GPS week: 1669   Day: 0   MJD: 55927.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9     7    17 |     6    13    23 |    38    13    43 |
emr | emr 2972 |    12     9    20 |     9    16    33 |    45    10    48 |
esa | esa 2976 |    10     7    17 |     6    13    24 |    39    12    51 |
gfz | gfz 2972 |    10     7    16 |     6    14    23 |    46    10    38 |
grg | grg 2976 |    15     9    24 |     8    12    34 |    26    16    72 |
igr | igr 2975 |     9     8    18 |     6    13    24 |    39    10    49 |
igs | igs 2975 |    10     8    16 |     6    13    26 |    40    12    46 |
jpl | jpl 2876 |    13    15    24 |     9    19    40 |    41    13    54 |
mit | mit 2976 |    13     8    16 |     7    16    30 |    38    17    44 |

Table 5.1669.1   GPS week: 1669   Day: 1   MJD: 55928.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    10    10    26 |     8    12    28 |    12     9    18 |
emr | emr 2972 |    13    10    27 |    10    12    37 |    14    15    31 |
esa | esa 2976 |    12    11    28 |     7    11    31 |    11     9    21 |
gfz | gfz 2972 |    11    10    27 |     7    12    29 |    11    13    19 |
grg | grg 2976 |    15    12    34 |     8    11    39 |    12    13    24 |
igr | igr 2976 |    11    10    28 |     7    11    30 |    11     8    19 |
igs | igs 2974 |    11    11    28 |     7    11    29 |    11     8    23 |
jpl | jpl 2875 |    21    16    49 |    10    12    32 |    13    11    31 |
mit | mit 2976 |    15    10    31 |     8    10    29 |    23    64    48 |

Table 5.1669.2   GPS week: 1669   Day: 2   MJD: 55929.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8    12    27 |     8     9    24 |    11    17    22 |
emr | emr 2972 |    10    12    29 |     8     8    27 |    14    13    22 |
esa | esa 2976 |     9    14    27 |     7     8    28 |     9    20    17 |
gfz | gfz 2971 |    11    11    23 |     9    11    27 |     7    22    17 |
grg | grg 2976 |    12    15    27 |     8     8    34 |     9    30    20 |
igr | igr 2976 |     8    14    34 |     7     8    27 |     9    19    16 |
igs | igs 2973 |    10    13    28 |     7     8    26 |    10    17    16 |
jpl | jpl 2962 |     9    13    27 |     7    10    30 |    14    25    27 |
mit | mit 2976 |    11    13    23 |    11    19    44 |    12    18    21 |

Table 5.1669.3   GPS week: 1669   Day: 3   MJD: 55930.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     6    18 |     7     7    25 |    12    42    26 |
emr | emr 2972 |    11    10    28 |     8     9    31 |    20    42    33 |
esa | esa 2976 |     7     8    17 |     7     8    28 |    12    32    27 |
gfz | gfz 2971 |     8     7    18 |     7    10    36 |    14    47    28 |
grg | grg 2976 |    17    18    38 |     8     8    29 |    15    37    27 |
igr | igr 2976 |     8     8    19 |     7     7    28 |    11    37    26 |
igs | igs 2976 |     8     7    18 |     7     7    28 |    12    38    25 |
jpl | jpl 2963 |    13     9    30 |     7     9    31 |    13    47    28 |
mit | mit 2976 |     9     8    19 |     7     8    36 |    15    57    25 |

Table 5.1669.4   GPS week: 1669   Day: 4   MJD: 55931.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9     7    25 |     6     7    21 |     6     5    17 |
emr | emr 2972 |    11    10    32 |     8    10    24 |    10    12    27 |
esa | esa 2976 |    11     9    25 |     6     8    22 |     7     7    19 |
gfz | gfz 2970 |    11     8    27 |     7    12    29 |     9     7    26 |
grg | grg 2976 |    12    12    28 |     6    11    26 |     7    18    25 |
igr | igr 2976 |    10     8    25 |     6     8    21 |     6     7    18 |
igs | igs 2968 |    10     8    25 |     6     8    21 |     6     7    19 |
jpl | jpl 2872 |    13     9    42 |     6    11    25 |     8     9    24 |
mit | mit 2976 |    13    11    28 |     6    12    27 |    11    32    24 |

Table 5.1669.5   GPS week: 1669   Day: 5   MJD: 55932.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     6    18 |     7     6    17 |     5     5    14 |
emr | emr 2972 |    13     7    24 |     9     6    20 |    10     7    19 |
esa | esa 2976 |     9     9    22 |     6     5    20 |     6     5    16 |
gfz | gfz 2973 |     9     9    20 |     7     9    25 |    12     7    26 |
grg | grg 2976 |    11    10    23 |     7     6    27 |     7     6    18 |
igr | igr 2976 |     9     8    22 |     6     6    19 |     6     4    13 |
igs | igs 2976 |     9     8    19 |     7     5    18 |     6     5    14 |
jpl | jpl 2962 |    10     8    25 |    10    10    21 |     8     5    19 |
mit | mit 2976 |     9     9    22 |     6     5    22 |     8     7    19 |

Table 5.1669.6   GPS week: 1669   Day: 6   MJD: 55933.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     8    25 |     7    12    28 |     5     6    12 |
emr | emr 2972 |    13     9    29 |     8    15    29 |     9    10    14 |
esa | esa 2976 |    11    10    25 |     8    13    31 |     6     7    12 |
gfz | gfz 2973 |    10    11    23 |     8    15    33 |     6     9    13 |
grg | grg 2976 |    11    10    43 |     7    13    29 |     7     9    16 |
igr | igr 2974 |    10     8    25 |     7    13    31 |     6     7    13 |
igs | igs 2971 |    10     9    24 |     7    13    28 |     5     6    11 |
jpl | jpl 2967 |    12     9    49 |     7    14    27 |     6     7    14 |
mit | mit 2976 |    12    10    44 |     7    14    30 |     8     9    12 |


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 6.1669   GPS week: 1669   MJD: 55927.500-55933.500

                                                         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 |       0      -9      18      88      3 |       7     16
            |      22      15     136     103      5 |       1
emr   uuuuu |     -25      27     -99     116      4 |      31     36
            |      28      19      97      93     16 |       3
esa   uuuuu |      -6     -29     162      20      0 |      -7     15
            |      18      19      47      42      3 |       1
gfz   uuuuu |     -15       9      23      45      3 |      10     18
            |      16      15      66      48      8 |       3
grg   uuuux |      23      -9      33      52    -21 |      32     55
            |      27      12      29     111     19 |       2
igr   xxxxx |     -19       5      87      68     -4 |       6     13
            |      14      19      62      55      5 |       1
irf   xxxxx |     -11       7      -7     -27      2 |       1     15
            |       9      10      25      24      6 |       2
jpl   uuuuu |      74      29      44     150    -13 |      19     26
            |      16      21      99      68     10 |       6
mit   uuuuu |     -57      14    -174    -180      3 |       3     16
            |      28      19      42      29      5 |       1
ngs   uuuuu |      24      32     -88     -37      0 |       0      8
            |      35      37      79      84      3 |       1
sio   uuuuu |      25    -127      -4     -83      2 |      27     33
            |      33      21      76      31     14 |       5


Table 7.1669.0   GPS week: 1669   Day: 0   MJD: 55927.500

                                                         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 |     -19     -36    -222     -52     15 |       5     12
emr   uuuuu |       8      33    -103      79     37 |      25     28
esa   uuuuu |       9       2      81      15      5 |      -7     13
gfz   uuuuu |     -22      33       4       5     10 |       6     15
grg   uuuux |     -12     -16      80      -8    -52 |      30     55
igr   xxxxx |       3      27     168      75     -1 |       5     10
irf   xxxxx |     -16      17     -17     -58     15 |      -2     13
jpl   uuuuu |      70      25     192     147    -11 |      27     31
mit   uuuuu |     -54      31    -144    -194     13 |       2     13
ngs   uuuuu |      11     -31    -147     108     -6 |       0      5
sio   uuuuu |      17    -124      61    -111     27 |      19     25

Table 7.1669.1   GPS week: 1669   Day: 1   MJD: 55928.500

                                                         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 |      25      -8      82      81      0 |       7     16
emr   uuuuu |     -45       3    -220       4      9 |      30     37
esa   uuuuu |      14     -45     221       5     -3 |      -6     14
gfz   uuuuu |     -22      26    -106      20     12 |       8     18
grg   uuuux |      46     -18      23     145    -31 |      30     55
igr   xxxxx |     -12      -9      39      61      1 |       7     13
irf   xxxxx |     -18     -10       4     -35      4 |       0     16
jpl   uuuuu |      88       3     -38     222    -21 |      26     29
mit   uuuuu |     -77     -14    -148    -140      0 |       3     16
ngs   uuuuu |      12      50      78    -109      0 |       1      7
sio   xxxxx |      -4    -161     108     -75     11 |      23     32

Table 7.1669.2   GPS week: 1669   Day: 2   MJD: 55929.500

                                                         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     -19      26     291      4 |       7     16
emr   uuuuu |     -41      22    -103     177      2 |      32     38
esa   uuuuu |      -2     -18     203      80     -2 |      -7     15
gfz   uuuuu |      16      -8       4     -15      8 |       9     18
grg   uuuux |       1      -1      35     -22    -26 |      32     55
igr   xxxxx |     -20       6      93      19     -8 |       8     13
irf   xxxxx |      -9      14      22     -27      2 |       0     16
jpl   uuuuu |      86      19      -1     141     -9 |      23     27
mit   uuuuu |     -51      30    -126    -156      1 |       3     16
ngs   uuuuu |       3      31    -134     -19     -1 |       1      7
sio   uuuuu |      21    -112      49     -88      6 |      26     33

Table 7.1669.3   GPS week: 1669   Day: 3   MJD: 55930.500

                                                         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 |      25       7    -101     101     -2 |       7     16
emr   uuuuu |     -59      65     -91      98     -7 |      33     38
esa   uuuuu |       4     -15     176     -57     -3 |      -7     15
gfz   uuuuu |     -26      -2      75     131      6 |      11     19
grg   uuuux |      45     -27       1     166     -9 |      31     55
igr   xxxxx |      -9      20      66     179     -6 |       6     13
irf   xxxxx |     -13      11     -49      10      0 |       1     16
jpl   uuuuu |      70      58      99     144    -28 |      20     24
mit   uuuuu |     -67      33    -227    -177      2 |       3     16
ngs   uuuuu |      31       0     -92     -55      2 |       0      7
sio   uuuuu |      12    -104     -85     -93      0 |      29     34

Table 7.1669.4   GPS week: 1669   Day: 4   MJD: 55931.500

                                                         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 |     -25      -9      41      52      2 |       5     17
emr   uuuuu |     -34      32     -52     266     -4 |      31     38
esa   uuuuu |     -17     -32     166      40      0 |      -9     17
gfz   uuuuu |     -17       5      42      46      2 |      10     19
grg   uuuux |      41     -11      61     122    -19 |      31     55
igr   xxxxx |     -31      20      18      79      1 |       4     14
irf   xxxxx |     -21      10     -27     -23     -1 |       0     16
jpl   uuuuu |      42      57     138     119     -6 |      15     24
mit   uuuuu |     -88      14    -223    -232      0 |       2     16
ngs   uuuuu |      78      39    -145     -68      1 |      -1      9
sio   uuuuu |       0    -109     -69    -113     -6 |      29     34

Table 7.1669.5   GPS week: 1669   Day: 5   MJD: 55932.500

                                                         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 |      16      -5     154      55      2 |       7     17
emr   uuuuu |     -19      19      74     170     -5 |      32     38
esa   uuuuu |     -38     -45     158      14     -1 |      -7     16
gfz   uuuuu |     -30      13      55      56     -8 |      13     20
grg   uuuux |      43       6      19      97    -16 |      33     55
igr   xxxxx |     -36      -9      51      49    -12 |       5     14
irf   xxxxx |     -10      10      14      -6     -3 |       2     16
jpl   uuuuu |      82      12     -70     242    -17 |      13     23
mit   uuuuu |     -61      15    -147    -183      4 |       3     16
ngs   uuuuu |      57      80    -115    -139      5 |      -1      9
sio   uuuuu |      40    -132     -26     -20    -10 |      32     36

Table 7.1669.6   GPS week: 1669   Day: 6   MJD: 55933.500

                                                         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       8     147      86      3 |       8     17
emr   uuuuu |      18      16    -197      21     -6 |      32     39
esa   uuuuu |     -12     -47     129      41      2 |      -7     16
gfz   uuuuu |      -3      -1      88      69     -6 |      14     19
grg   uuuux |      -5       1      10    -138      9 |      35     55
igr   xxxxx |     -30     -23     176      16     -6 |       4     15
irf   xxxxx |       8      -5       3     -53     -4 |       3     15
jpl   uuuuu |      78      29     -15      35      0 |      11     22
mit   uuuuu |       0      -9    -204    -178      2 |       5     16
ngs   uuuuu |     -26      58     -63      24      0 |       0      9
sio   xxxxx |      93    -146     -67     -79    -13 |      32     36



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