[IGSREPORT-20322] Wk 1660 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Nov 17 13:20:05 PST 2011


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1660   (Oct 30, 2011 - Nov 05, 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:

igs1660[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1660[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1660[0-6].cls  IGS GPS clock combination summary report.
igs16607.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16607.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  |  EMR   | 21 21 KHAJ KHAJ
                0  |  ESA   | KOUR
                0  |  GFZ   | 30 HARB MDVJ
                0  |  GRG   | KOUR NTUS USN3
                0  |  JPL   | 21 22 27 TIXI
                0  |  MIT   | 27 27 GUAT GUAT
                1  |  COD   | MOBS
                1  |  ESA   | YAKT TIXI ZECK
                1  |  GFZ   | COCO
                1  |  MIT   | 27 27 DAV1 DAV1
                2  |  COD   | NKLG STHL ZECK
                2  |  EMR   | 4 4 CHUR CHUR
                2  |  GFZ   | 4 30 MAC1 MDVJ NTUS
                2  |  GRG   | SANT
                2  |  JPL   | CAS1
                2  |  MIT   | 27 27 CAS1 MAC1 NTUS CAS1 MAC1 NTUS
                3  |  COD   | WROC SOFI STHL WROC
                3  |  ESA   | WHIT WHIT ZECK
                3  |  GFZ   | 2 BAN2 BJCO CHUR MDVJ WHIT
                3  |  JPL   | 10 22 HARB QIKI
                3  |  MIT   | 27 27
                4  |  COD   | WROC DUBO GUAT SOFI TLSE WROC
                4  |  EMR   | MCM4
                4  |  ESA   | REUN KOUR REUN URUM
                4  |  GFZ   | HOLM MDVJ OPMT TLSE WHIT
                4  |  GRG   | KOUR
                4  |  JPL   | STHL
                4  |  MIT   | 27 27 KHAJ NICO GUAT KHAJ NICO
                5  |  COD   | KOSG GOPE KOSG
                5  |  EMR   | WTZR
                5  |  ESA   | HARB REUN SCH2 HARB REUN
                5  |  GFZ   | MDVJ SCH2 YELL
                5  |  GRG   | KOUR SANT WTZR
                5  |  JPL   | HARB
                5  |  MIT   | 25 27 25 27 KOSG NICO
                6  |  COD   | CAS1
                6  |  GFZ   | MDVJ SUTM
                6  |  JPL   | 10
                6  |  MIT   | 27 27 CAS1

 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
               ----+--------+---------------
                0  |  SIO   | ALL (high Transformation - See Table 2)
                1  |  SIO   | ALL (high Transformation - See Table 2)
                2  |  SIO   | ALL (high Transformation - See Table 2)
                3  |  SIO   | ALL (high Transformation - See Table 2)
                4  |  SIO   | ALL (high Transformation - See Table 2)
                5  |  SIO   | ALL (high Transformation - See Table 2)
                6  |  SIO   | ALL (high Transformation - See Table 2)

 6. 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.
    

 7. 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  |    -.1     .4    -.5     -43      3     16     .08
       EMR  |    3.2    7.0    6.5      -3     15    -11     .40
       ESA  |    6.0    3.2  -11.1      79   -200     95     .17
       GFZ  |    -.6    1.1    -.4     -27      3     -2     .20
       GRG  |    5.3     .8    6.7     -16     28      8     .19
       JPL  |     .5    7.2   15.8      56    -39     18     .61
       MIT  |    5.9    2.7   10.6     -31     16    -40     .16
       NGS  |    6.6    -.7    5.1     -23    -34     32     .50
       SIO  |    7.2    7.7  -14.8     129   -223      6     .20


 8. 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.

 9. 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.

10. 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 1.1660.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1660.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 2.1660.[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 3.1660.[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 5.1660.0-6).

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 1660 summary.                       (Oct 30, 2011 - Nov 05, 2011)

Table 1.1660.a   GPS week: 1660   MJD: 55864.000-55870.000

         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  257|    0     0     0    77   -62     5  -.27    9    9 |    -597     241     19     90
        |    0     0     1    12    10    10   .02           |     482     635
emr   98|    0     1     4     4   -83    35   .39   20   20 |  124138   -3841     16    132
        |    1     1     2    32    10    18   .05           |  585748   11262
esa  138|    0     0     1   -88   193   -27   .21    7    7 |   -1133    1451     17    235
        |    1     0     0    23    23    18   .02           |     758     828
gfz  202|   -1     0    -3    51   -83     8  -.19   11   11 |      99    -180     24    103
        |    0     0     1    74    59     6   .02           |     196     336
grg  131|    1     1    -1    27  -108    14   .50   18   17 |    -218     229     51    240
        |    0     1     3    15    10    27   .11           |     320     432
igr  n/a|    0     0     0   -18   -62   -64  -.10    5    5 |  -11946     830     18     76
        |    0     0     0    21    16    18   .02           |    1658    1174
jpl  152|   -1     0     1  -117    48    27   .54   15   14 |     689     169     20    106
        |    1     1     1     7     5    35   .03           |     855     801
mit  260|    1    -2    -1    46  -134   -15  -.41   13   11 |    -442     214     19    193
        |    0     1     0    25    28    14   .02           |     265     377
ngs  226|    0     0     0    34    11     0  -.27   11    9 |    -589     203   1861   3490
        |    1     1     0    47    21    15   .03           |     418     551
sio  254|   -1     2    -9  -223   390   -31  -.28   22   20 |     ---     ---    ---    ---
        |    2     0     0    27    22    28   .04           |     ---     ---


Table 1.1660.b   GPS week : 1660   MJD: 55864.000-55870.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1660.0   GPS week: 1660   Day: 0   MJD: 55864.000                            

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  257|    0     0     0    67   -50    14  -.28   10    9 |    -434     548     21     95
        |                     20   -17                       |
emr   98|    0     3     2    25   -95    33   .37   20   20 | -999999  -29327     17    136
        |                    -38   -28                       |
esa  138|   -1     0     2  -109   173   -37   .18    7    7 |    -744     629     16    202
        |                     55    29                       |
gfz  202|    0     0    -2   104  -107     0  -.23   11   11 |      42     -32     24     99
        |                      6     7                       |
grg  131|    1     1    -4    32  -100    -4   .62   16   15 |    -131    -326     39    229
        |                     -7   -66                       |
igr  n/a|    0     0     1   -29   -37   -76  -.11    5    5 |  -12064   -1047     19     75
        |                    -15    19                       |
jpl  152|    0     0     0  -110    48    30   .51   15   14 |    1885   -1070     20    108
        |                     78   -73                       |
mit  260|    1     0    -1    11  -102   -11  -.43   12   11 |    -296      -3     22    209
        |                     12    42                       |
ngs  226|    2    -1     1    26    34     2  -.23    9    8 |    -474     519   1615   3457
        |                     14    -9                       |
sio  254|    0     1   -10  -265   411   -74  -.26   22   21 |     ---     ---    ---    ---
        |                     96  -222                       |

Table 2.1660.1   GPS week: 1660   Day: 1   MJD: 55865.000                            

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  257|    0     0     0    67   -78     0  -.29    8    7 |   -1348    1196     18     92
        |                     13    -8                       |
emr   98|   -1     1     3    -1   -68    25   .33   20   20 |  624686    -648     16    139
        |                    -12   -58                       |
esa  138|    0    -1     1  -114   179    -6   .20    7    7 |   -2055    1357     15    230
        |                     64    29                       |
gfz  202|   -1     1    -5    74   -76     0  -.20   14   13 |     -35     148     24    102
        |                     33    48                       |
grg  131|    1     2    -6    28  -102    33   .59   16   14 |    -455     423     56    246
        |                     21   -60                       |
igr  n/a|    0     1     0   -26   -74   -41  -.13    5    5 |  -12755    -241     18     66
        |                      9    28                       |
jpl  152|    0     1     3  -127    46   -27   .50   14   13 |    1068    -430     20    105
        |                     97   -58                       |
mit  260|    1     0     0    61  -101   -10  -.42   12   11 |    -721     675     21    241
        |                    -18    17                       |
ngs  226|    1     2     0    28    25     2  -.25   11    9 |   -1098     825   1904   4078
        |                     35   -23                       |
sio  254|    0     1    -8  -214   410   -54  -.27   20   17 |     ---     ---    ---    ---
        |                     77  -231                       |

Table 2.1660.2   GPS week: 1660   Day: 2   MJD: 55866.000                            

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  257|    0     0     0    65   -63    16  -.26    9    8 |    -629     188     20     86
        |                      9   -21                       |
emr   98|    0     1     6   -42   -80    14   .41   19   19 |  623493    -101     17    120
        |                     23   -71                       |
esa  138|    0     0     0  -105   171   -62   .21    8    8 |    -713    1331     22    255
        |                     65    13                       |
gfz  202|   -1     0    -3   143     8    17  -.19   11   11 |     174    -199     25    106
        |                     -8    54                       |
grg  131|    1     1    -4    -2   -97    -1   .63   15   15 |    -116    -167     39    227
        |                     65   -66                       |
igr  n/a|    0    -1     0   -38   -69   -76  -.10    5    5 |  -13425     584     19     86
        |                     18    41                       |
jpl  152|   -3     2     2  -117    56    70   .57   15   14 |     123     -56     24    103
        |                     68   -79                       |
mit  260|    1    -1    -1    45  -113     7  -.41   11   10 |    -187    -304     18    182
        |                    -13    28                       |
ngs  226|    1    -2     0    -1     4    -7  -.28   10    8 |    -697     288   1813   3637
        |                     30    -3                       |
sio  254|   -3     2    -8  -226   416   -30  -.27   21   20 |     ---     ---    ---    ---
        |                     75  -228                       |

Table 2.1660.3   GPS week: 1660   Day: 3   MJD: 55867.000                            

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  257|   -1     0     1    93   -74     3  -.24   10   10 |     121    -858     24    100
        |                      3   -46                       |
emr   98|    2     3     4   -26   -96    15   .47   20   20 |  622498     524     17    147
        |                     31   -69                       |
esa  138|    0     0     1   -94   176   -14   .22    7    7 |    -936     988     15    229
        |                     37    25                       |
gfz  202|    0     0    -2    88   -23    14  -.19   11   11 |     487    -815     26    118
        |                     25    -6                       |
grg  131|    0     0    -1    18  -109   -19   .47   22   20 |     111     236     63    256
        |                     64   -69                       |
igr  n/a|    0     0     0   -32   -78   -46  -.07    5    5 |  -13030    1362     19     80
        |                      2    16                       |
jpl  152|    0     3     0  -115    41    22   .56   16   15 |     108     594     22    106
        |                     87   -37                       |
mit  260|    0    -2    -1    91  -163   -18  -.38   12   12 |     -41     -11     19    198
        |                    -23    28                       |
ngs  226|    0     0     0   -30    -5    21  -.28    9    8 |      94    -854   2239   3282
        |                     68    54                       |
sio  254|   -3     2    -8  -179   376   -49  -.23   22   20 |     ---     ---    ---    ---
        |                     74  -229                       |

Table 2.1660.4   GPS week: 1660   Day: 4   MJD: 55868.000                            

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  257|   -1     0    -2    71   -61     9  -.27   10    9 |    -583     538     18     81
        |                     32   -37                       |
emr   98|    0     1     6    -3   -84    60   .42   19   19 |   -1417    1195     21    127
        |                      2   -54                       |
esa  138|    2     0     0   -72   222   -25   .24    7    7 |    -844    2119     20    244
        |                     46     5                       |
gfz  202|    0     1    -1    44  -111     6  -.17   10   10 |    -127     103     25    102
        |                    -36   -10                       |
grg  131|    1     0     2    38  -103    57   .34   22   20 |    -742     843     57    257
        |                     13   -75                       |
igr  n/a|    0     0     0   -24   -41   -48  -.11    6    6 |  -12677    2013     20     73
        |                    -23     5                       |
jpl  152|   -3     1     2  -108    48     7   .54   15   15 |    -343     964     20    104
        |                     56   -33                       |
mit  260|    0    -3    -1    48  -169   -41  -.42   13   12 |    -680     434     18    156
        |                      6    46                       |
ngs  226|    1     0     0    24   -13     0  -.30   12    9 |    -594     523   1819   3406
        |                     41    13                       |
sio  254|   -3     3    -9  -234   366   -13  -.26   22   20 |     ---     ---    ---    ---
        |                    113  -189                       |

Table 2.1660.5   GPS week: 1660   Day: 5   MJD: 55869.000                            

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  257|   -1     0     0    82   -52    10  -.27   10    9 |   -1030     175     21     94
        |                     37   -44                       |
emr   98|    0     0     8    33   -87    49   .39   20   20 |    -979    1468     12    127
        |                    -34   -38                       |
esa  138|    1     0     0   -77   226   -31   .22    7    7 |   -2342    2966     17    257
        |                     50   -23                       |
gfz  202|   -1     1    -5   -26  -168    13  -.18   10   10 |      43     -57     23    102
        |                    -15     3                       |
grg  131|    1     1     1    43  -122    35   .41   19   16 |    -353     638     51    218
        |                     25   -60                       |
igr  n/a|    0     1     0     4   -69   -89  -.08    5    5 |  -11065    2192     18     79
        |                    -19    37                       |
jpl  152|   -1    -1     1  -113    55    13   .55   15   14 |     315    1201     16    107
        |                    132   -65                       |
mit  260|    1    -2    -1    44  -155   -16  -.41   13   11 |    -610      48     18    184
        |                     18    37                       |
ngs  226|    0     0    -1    84    39     3  -.28   11    9 |   -1056     248   1802   3421
        |                    -37   -70                       |
sio  254|   -1     3    -9  -204   362     0  -.28   22   20 |     ---     ---    ---    ---
        |                    112  -195                       |

Table 2.1660.6   GPS week: 1660   Day: 6   MJD: 55870.000                            

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  257|    0     0     1    96   -55   -13  -.29    8    8 |    -281    -100     17     87
        |                     19   -26                       |
emr   98|    1     2     2    46   -72    48   .36   19   19 |     685      -3     18    134
        |                    -24   -68                       |
esa  138|    0     1     0   -50   203   -17   .23    7    7 |    -303     768     18    230
        |                     29    -2                       |
gfz  202|   -1     0    -3   -66  -107     8  -.17    9    9 |     114    -409     23     94
        |                    -31    -9                       |
grg  131|    1     2    -1    30  -123     2   .43   19   17 |     159     -42     57    247
        |                     24   -63                       |
igr  n/a|    0     0     0    17   -70   -69  -.10    5    5 |   -8606     950     17     74
        |                    -14    29                       |
jpl  152|   -1     0     0  -125    41    71   .55   14   13 |    1667     -15     21    109
        |                    139  -112                       |
mit  260|    2    -1    -1    23  -138   -15  -.43   16   12 |    -563     660     21    186
        |                     18    42                       |
ngs  226|    0     0     0   106    -1   -28  -.29   13   10 |    -302    -127   1835   3154
        |                   -136   -44                       |
sio  254|    1     2    -8  -240   392     0  -.35   24   19 |     ---     ---    ---    ---
        |                    144  -205                       |

       
       
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 3.1660.0   GPS week: 1660   Day: 0   MJD: 55864.000                            

        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  |   11   14    8    9  ---    7   16   14   10   22    4 |    29   42   32   31  ---   34   43   27   28   32    30
   2  |    8   23    6   10   16    5   16   10    7   22    4 |    17   32   20   17   24   17   28   21   18   26    19
   3  |   10   10    6   10   15    4    9    8   11   32    3 |    16   20   20   23   29   17   24   19   20   25    19
   4  |    6   19    6   10   13    5   12   11    9   19    3 |    19   29   19   24   23   20   23   25   23   24    19
   5  |   17   23    8   15   10    7   24   13    8   26    5 |    79   87   81   82   81   79   84   78   82   84    82
   6  |    6   10    6   11   12    2    8   10    9   28    3 |    19   23   24   28   31   22   24   26   22   27    23
   7  |    6   22    7   11   17    3   20    9    7   12    4 |    12   27   14   15   24   12   26   12   16   12    13
   8E |   15   19    7   11   19    6   15   17   13   21    5 |    32   42   37   36   43   36   41   42   37   34    36
   9  |   10   18    7   14   12    7   14   12    6   20    4 |    12   24   12   21   22   14   21   15   15   20    12
  10  |   13   18    5   10   19    5   17   13    7   17    4 |    64   64   61   65   63   64   61   63   60   62    60
  11  |    7   16    6    9   19    5   12    8    8   17    3 |    17   33   26   24   42   20   32   23   21   27    23
  12  |    7   26    6   10   18    5   17   12   10   17    4 |    15   31   18   19   28   17   27   21   16   19    17
  13  |    9   23    8   12   24    5   14    6    5   14    4 |    16   32   23   23   39   20   29   18   20   15    20
  14  |    8   24    7   11   19    4   14   16    7   18    4 |    18   28   25   27   32   24   28   25   22   17    23
  15  |    9   21    6    8   16    5   14   11   11   18    4 |    17   28   22   18   29   19   24   18   23   15    20
  16  |    8   25    9   12   16    4   17   10    6   17    4 |    15   28   17   16   24   13   22   14   13   15    14
  17  |    9   14    7   18   14    6   15   14   13   35    4 |    28   30   30   38   35   29   32   32   32   37    30
  18E |   12   25   11   11   15    4   14   11   11   21    5 |    36   44   41   39   37   38   43   34   38   32    38
  19  |    6   14    4    7   12    4    9   13    8   30    3 |    27   29   28   28   30   28   30   33   28   29    28
  20E |    7   21    6   12   16    5   17   15    5   15    4 |    13   26   18   17   19   16   21   15   17   20    14
  21  |    8   18   10    8   13    4   13    9   10   20    4 |    23   33   27   22   35   21   30   19   22   14    24
  22E |   15   18    8    8   14    4   10   11    9   26    4 |    37   46   44   41   38   41   45   41   44   37    42
  23  |    9   26    8   12   17    4   17    7    8   21    4 |    12   31   17   17   26   14   26   17   14   13    14
  25  |    9   17    7    9   16    4   16    9    9   15    4 |    21   26   23   23   30   24   33   23   24   25    22
  26  |   13   13    7    7   11    4   13   13    7   12    4 |    18   19   16   14   17   14   16   20   16   15    15
 X27  |   21   24   24   21  ---   13   23   22  ---  ---   10 |    17   29   19   35  ---   21   21   18  ---  ---    17
  28  |   10   17    6   12   18    5   14   15    9   17    4 |    17   26   15   25   33   17   23   26   19   21    18
  29  |    7   12    8   12   13    5   16   13    8   31    4 |    23   30   28   29   29   26   32   29   29   25    27
 X30  |    8   14    6   10   13    5  ---   15    8   27    4 |    15   21   17   18   21   18  ---   20   19   30    16
  31  |   10   19    8    9   22    5   19   21   13   11    5 |    15   26   17   15   29   14   28   19   18   14    16
  32  |   10   22    6   10   15    6   18   17    9   26    4 |    32   38   33   32   36   32   40   39   36   42    33
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    7   11   16    5   15   12    9   22      |T   23   33   26   27   32   25   31   26   26   26    25
 WRMS |    9   20    7   11   15    5   14   11    8   21      |NE  18   28   21   22   28   19   27   21   20   21    19
 MEDI |    9   19    7   10   16    5   15   12    8   20      |MD  18   29   23   24   30   20   28   23   22   25    20

Table 3.1660.1   GPS week: 1660   Day: 1   MJD: 55865.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6   15    6   12  ---    5   14   17   11   18    4 |    23   35   29   23  ---   24   38   23   24   28    24
   2  |    7   24    8   16   16    4   14    9    6   20    4 |    18   31   21   13   22   17   25   22   18   25    18
   3  |    5   12    6   12   15    4   10   10   12   27    3 |    16   18   14   16   22   14   18   13   16   17    13
   4  |    5   17    5   13   13    4    9    9    8   22    3 |    23   26   22   21   21   21   24   23   24   25    21
   5E |   11   19    7   10   16    4   21   11    8   19    4 |    24   39   30   35   36   31   40   34   33   36    30
   6  |    5   11    6   16   11    4    9   11   11   22    3 |    17   20   17   22   21   16   21   19   16   19    16
   7  |    7   17    7   15   19    4   16   10    9   13    4 |    21   28   19   17   26   17   28   17   21   17    18
   8  |   14   24    7   12   20    7   17   14   10   20    5 |    42   54   46   48   50   43   51   52   46   49    44
   9  |    7   20    8   15   10    7   15   15   17   17    4 |    17   29   14   20   23   18   26   19   22   22    16
  10E |   12   20    8   16   20    6   17   15   12   18    5 |    65   68   63   64   60   62   62   70   68   63    63
  11  |    7   19    6   10   16    5   13    9   10   16    4 |    18   31   21   19   35   18   29   19   15   24    18
  12  |    7   25    7   13   15    7   19   13   13   19    5 |    15   28   16   14   26   13   25   19   15   18    14
  13  |    6   23    8   15   22    3   14    6    7   14    4 |    17   32   18   18   37   17   30   19   15   16    17
  14  |    7   20    9   16   14    4   13   12   12   17    4 |    12   28   20   20   28   16   26   18   18   13    17
  15  |    7   25    7   11   14    3   15   10   14   17    4 |    18   33   24   21   31   21   25   22   28   18    21
  16  |    4   26   11   16   15    5   17   13   10   16    5 |    10   28   18   14   23   10   22   15   12   14    12
  17  |    6   15    5   19   12    4   13   12   10   35    4 |    17   24   22   27   23   20   24   21   22   27    20
  18E |    7   28   10   15   17    7   13   13   11   15    5 |    25   39   33   33   41   29   38   31   34   33    31
  19  |    6   14    5   10    9    4   11    9   10   31    3 |    17   19   17   18   19   15   19   17   19   16    15
  20E |    8   23    7   15   17    3   14   14    9   12    4 |    18   29   24   18   23   16   24   17   19   19    17
  21  |    5   20    8   10   15    3   13   13   13   18    4 |    21   31   21   20   36   20   32   16   22   15    21
  22E |    7   20    8   14   14    6    9    9   11   14    4 |    17   26   22   23   28   20   25   21   22   22    20
  23  |    7   28    8   17   18    4   17    8    8   21    5 |    16   35   18   16   25   15   28   19   12   16    15
  25  |    9   18    7   15   15    6   14    7   14   14    4 |    23   27   19   15   30   15   31   17   15   21    17
  26  |    6   15    8   15   13    3    9   12   13   13    4 |    15   22   20   17   20   16   20   22   16   20    15
 X27  |   20   37   17   21  ---   13  ---   20  ---  ---   10 |    19   36   22   23  ---   22  ---   22  ---  ---    16
  28  |    8   21    7   14   19    5   14   14    8   17    4 |    16   29   20   21   29   15   25   23   21   21    17
  29  |    9   15    6   16   11    4   17   11   13   30    4 |    18   26   20   21   19   19   23   20   21   15    18
 X30  |    8   18    7   18   11    5  ---   17   11   25    5 |    16   28   16   20   18   14  ---   17   15   26    14
  31  |    9   18    8   14   18    5   17   21    8    8    5 |    16   25   15   17   29   13   25   20   16   14    14
  32  |    9   22    8   14   15    4   18   16   10   29    5 |    26   33   29   32   35   28   36   35   30   42    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    7   14   16    5   14   12   11   20      |T   20   30   22   22   28   20   28   23   22   23    20
 WRMS |    7   20    7   13   14    5   13   11    9   17      |NE  17   27   19   18   25   16   25   19   18   19    16
 MEDI |    7   20    7   15   15    4   14   12   10   18      |MD  18   29   20   20   26   17   25   20   19   20    17

Table 3.1660.2   GPS week: 1660   Day: 2   MJD: 55866.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6   15    8   10  ---    5   16   11    9   18    4 |    26   39   29   24  ---   28   40   26   26   28    26
   2  |    7   22    7   12   15    6   16    7   12   20    4 |    18   29   18   16   23   17   27   21   24   25    17
   3  |    9   11    6   17   16    5    9   11   12   29    4 |    20   22   15   17   24   16   24   17   20   19    15
   4  |    7   16    6    8   14    5   13    9    9   24    3 |    18   23   19   16   26   19   20   21   17   23    16
   5E |   11   22    8   12   14    6   21   10    7   12    4 |    34   43   36   31   35   30   42   31   33   37    31
   6  |    6   10    8   16   13    4    8   12   10   20    4 |    17   22   16   19   25   15   22   22   17   21    16
   7  |    7   21   11    8   19    3   17   12   11   13    4 |    20   33   25   16   29   20   28   20   24   18    20
   8  |   12   22   11   12   19    6   18   11   11   25    5 |    37   41   34   34   45   36   40   38   39   33    35
   9  |    9   17    9   15   16    5   13   11   15   18    4 |    20   28   19   20   28   18   28   20   20   22    16
  10E |   11   18    8   10   13    7   15   14   13   17    4 |    49   53   51   55   49   52   47   55   58   48    50
  11  |    7   17    9    8   17    4   16    7   11   14    4 |    21   34   28   20   40   22   33   24   25   27    23
  12  |    9   28    9   13   13    6   18   13   13   20    5 |    17   35   18   18   29   17   27   23   22   20    17
  13  |    7   20    6   10   22    5   12    7   10   16    4 |    18   34   20   18   39   19   31   21   19   17    19
  14  |    8   22    8   14   12    5   12   10    9   18    4 |    18   30   20   22   32   20   29   20   19   16    18
  15  |    7   24    8   10   16    4   14    9    7   16    4 |    25   36   25   24   37   23   33   32   24   27    25
  16  |    7   22    7   11   16    8   16   14   13   17    4 |    17   32   17   13   26   17   25   15   20   16    14
  17  |   12   16    7   16   13    5   17   10    8   34    4 |    24   29   27   30   28   24   30   24   26   31    23
  18E |    8   26    9   12   17    4   16   13    9   19    5 |    29   42   34   30   43   30   42   35   33   32    32
  19  |    7   12    6    7   10    4   11    8   10   27    3 |    21   26   21   22   26   18   26   25   23   20    20
  20E |    8   22    8   10   17    4   12   11   10   15    4 |    17   31   18   17   26   19   23   21   21   22    17
  21  |    7   20    6    9   14    4   12   13   10   21    4 |    23   39   21   19   34   20   32   16   21   16    21
  22E |    7   18    7   10   17    5    9   11    9   17    4 |    20   28   21   17   34   18   26   22   23   25    20
  23  |    9   25    9    9   17    4   15    8   10   20    4 |    17   35   18   12   30   15   28   21   14   16    15
  25  |   11   16    8   13   15    7   14    8   10   15    4 |    18   31   22   20   33   20   33   21   23   24    20
  26  |    5   14    6   11   14    5   11   11    7   15    3 |    20   27   17   19   24   18   30   28   20   28    19
 X27  |   22   18   10   22  ---   12  ---    9  ---  ---    8 |    23   28   30   23  ---   20  ---   23  ---  ---    20
  28  |   10   21    6   12   16    5   15   13    7   18    4 |    19   32   20   22   31   16   26   24   22   21    18
  29  |    7   13    9   11   12    4   14   12   15   29    4 |    21   29   23   24   24   20   27   25   23   24    21
 X30  |    8   17    7   14   14    3  ---   13   10   24    4 |    18   29   18   20   21   14  ---   12   15   24    15
  31  |   11   15   10   11   18    5   18   17    8    8    5 |    16   25   15   14   30   13   27   19   16   16    13
  32  |    9   18    9    9   18    5   18   13   11   37    4 |    35   42   34   36   41   36   44   42   39   54    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    8   11   15    5   15   11   10   21      |T   22   32   23   22   31   21   30   24   24   25    21
 WRMS |    8   19    8   11   15    5   14   10    8   20      |NE  19   30   20   19   29   18   28   21   20   21    18
 MEDI |    8   18    8   11   16    5   15   11   10   18      |MD  20   31   21   20   30   19   28   22   22   23    20

Table 3.1660.3   GPS week: 1660   Day: 3   MJD: 55867.000                            

        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  |    9   17    5    9  ---    4   18   13   12   21    4 |    29   40   29   29  ---   28   38   25   30   31    28
   2  |   11   20    7   24   18    6   16   14    6   26    5 |    25   34   24   28   29   23   27   25   23   26    22
   3  |    6   11    4    9   20    3   13    9    8   25    3 |    15   21   18   17   27   14   24   18   15   19    15
   4  |   12   14    5    8   16    5   12   11    8   27    3 |    20   25   24   22   31   24   27   22   22   28    22
   5E |    6   21    8    9   20    6   21   12    9   13    4 |    19   32   20   22   25   19   28   22   23   23    19
   6  |    6    9    4   12   17    3   12    9    9   15    3 |    21   26   22   25   30   22   26   26   23   24    22
   7  |    9   19    6    8   24    4   19    8   10   11    4 |    20   31   21   19   30   22   30   21   24   17    20
   8  |   14   19    5    9   21    6   19   13   11   23    4 |    21   29   21   21   28   24   28   30   21   23    20
   9  |   12   21    8    9   21    7   18   13   11   19    5 |    20   25   17   14   27   16   22   18   17   19    14
  10E |   14   22    7   11   20    7   19   13   12   17    5 |    52   55   51   52   47   54   52   56   55   49    51
  11  |    7   19    5    7   24    3   17    8   10   24    4 |    16   31   18   15   36   16   30   18   14   26    16
  12  |    9   27   10    9   17    4   17   19   10   19    5 |    17   33   20   17   27   18   22   20   17   17    16
  13  |    9   20    5    6   26    5   14    9    8   15    4 |    21   35   23   18   40   23   29   23   22   17    21
  14  |    8   21    5   10   22    5   16   11   11   18    4 |    18   30   23   22   32   21   26   20   18   16    20
  15  |   10   26    8    8   23    4   16   13    7   16    4 |    16   27   19   15   33   17   22   22   19   18    16
  16  |    6   25    8   11   21    5   17   17    9   18    5 |    15   31   15   15   24   13   20   15   13   15    12
  17  |   15   14    7   18   15    4   18   12   10   34    5 |    20   27   26   35   28   26   29   28   25   36    25
  18E |    7   31   10   10   19    5   15   15    9   18    5 |    27   40   35   33   34   32   36   28   31   33    30
  19  |    9   12    5    9   18    4   13    8   10   26    3 |    25   28   22   23   29   24   26   28   24   24    22
  20E |    7   18    5    9   36    4   16   14    6   19    4 |    13   26   17   13   27   13   19   19   17   17    13
  21  |    7   25    7    7   20    5   11   15   10   22    4 |    23   38   21   21   36   22   30   19   25   19    22
  22E |    6   21    8    9   20    4   13    9    6   15    4 |    13   24   16   15   20   16   21   17   17   23    15
  23  |   10   23    6    8   25    5   15   10    9   20    4 |    16   35   18   17   30   17   25   20   19   14    15
  25  |    9   22    8   12   18    5   14   12    8   15    4 |    20   30   23   21   31   21   27   18   18   23    18
  26  |    7   16    5   10   17    6   13   14    9   16    4 |    20   24   21   16   25   19   22   26   20   22    18
 X27  |   28   23   27   25  ---   34   26   17  ---  ---   11 |    15   23   39   29  ---   33   22   23  ---  ---    20
  28  |   12   20    8   12   21    4   15   13    8   19    4 |    17   29   19   21   33   18   25   23   20   19    18
  29  |   10   14    8   10   16    5   16   13   12   31    4 |    23   30   28   23   27   25   29   27   28   26    25
 X30  |    9   16    7   13   20    4  ---   15   11   25    4 |    18   32   24   23   23   20  ---   21   20   27    19
  31  |   10   18    7   11   31    5   21   13   10   14    5 |    18   30   18   19   33   18   29   21   16   24    16
  32  |   11   21    6    7   29    4   14   13    9   42    4 |    24   35   27   27   41   25   33   31   30   38    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    7   11   22    5   16   12    9   22      |T   20   30   23   22   30   22   27   23   22   23    20
 WRMS |   10   20    7   11   20    5   15   12    8   20      |NE  19   29   22   21   30   20   26   21   20   22    19
 MEDI |    9   20    7    9   20    5   16   13    9   19      |MD  20   30   21   21   30   21   27   22   20   23    20

Table 3.1660.4   GPS week: 1660   Day: 4   MJD: 55868.000                            

        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  |    9   14    7   10  ---    6   17   16   13   23    4 |    28   38   31   31  ---   29   41   23   31   28    29
   2  |    9   19    7    9   17    6   14   14   11   29    4 |    19   31   23   20   29   20   28   27   25   29    20
   3  |   10    9    5   10   18    3   10   11   10   21    3 |    16   16   18   20   20   13   18   17   16   19    13
   4  |   11   13    6    9   17    6   10   19    8   24    4 |    16   21   19   15   22   17   20   32   21   31    16
   5E |    6   20    7   13   22    5   22   14    9   14    5 |    19   29   21   22   26   19   32   25   19   23    20
   6  |    8    9    4   10   15    4    9   15   12   16    3 |    26   25   24   28   28   21   28   28   25   29    22
   7  |    7   21    7    7   32    6   18    9    9   12    4 |    17   30   21   20   35   21   27   21   20   23    19
   8  |   16   22    6    9   24    8   14   11   11   20    5 |    27   37   30   31   36   29   34   36   31   35    29
   9  |    9   18    8    7   25    6   18   14    9   20    4 |    19   28   20   23   32   18   29   24   20   23    18
  10E |   15   17    9   13   17    6   16   16   15   19    5 |    43   42   38   41   40   40   40   47   43   42    39
  11  |    8   16    6    8   23    6   14   10   14   22    4 |    12   26   17   13   29   11   26   14   12   15    13
  12  |   10   21    8    7   19    5   22   19   10   17    5 |    14   24   19   16   23   12   24   20   13   17    14
  13  |    6   21    7    6   32    6   12    9    9   16    4 |    19   35   25   19   43   21   33   22   20   17    22
  14  |   11   21    7   10   26    5   18    9   15   21    5 |    14   28   23   24   34   21   28   21   23   18    20
  15  |    9   26    7    9   24    7   18   15   13   18    5 |    14   29   19   20   37   17   27   24   17   20    17
  16  |   11   23    8    9   23    5   14   15   10   16    5 |    14   25   17   17   25   10   18   15   15   19    11
  17  |   10   13    6   16   14    5   16   12   13   33    4 |    25   26   24   29   25   23   30   30   27   32    25
  18E |    7   27    9   12   17    7   15   13   10   13    4 |    24   33   27   24   28   22   30   18   28   21    24
  19  |   10   14    5    7   16    4   12   12   12   26    3 |    23   23   20   21   20   19   22   25   22   23    19
  20E |    7   19    6    7   24    6   13   11   14   17    4 |    13   23   22   15   19   15   20   17   23   17    16
  21  |    7   21    5    8   19    5   13   13   13   20    4 |    23   37   25   27   37   22   37   25   22   23    25
  22E |    7   18    7    9   20    7   10   11   11   20    4 |    16   22   19   20   22   17   19   17   20   18    15
  23  |    7   24    7    8   29    7   14   10   12   22    4 |    13   31   20   16   32   14   25   18   16   17    15
  25  |    9   18    6   10   19    4   12   15   13   15    4 |    17   25   18   19   24   13   28   15   14   20    14
  26  |    7   16    8    9   18    5   14   14   10   17    4 |    21   27   21   24   31   19   28   29   22   25    21
 X27  |   29   28   24   22  ---   12   22   16  ---  ---   10 |    21   28   34   37  ---   27   20   25  ---  ---    22
  28  |   10   19    5    9   20    4   17   12    9   19    4 |    18   27   19   22   30   17   23   24   16   19    17
  29  |    8   17    9   13   17    6   17   18   13   31    5 |    25   28   36   26   25   27   32   33   30   28    28
 X30  |   10   17    6   13   21    5  ---   17   13   23    5 |    23   30   21   27   23   21  ---   16   22   29    19
  31  |   12   14    8    9   37    5   19   12   12   15    5 |    22   25   19   17   37   18   28   21   21   27    17
  32E |   12   26    8    7   18    6   16   12   11   43    4 |    57   66   62   61   59   59   65   63   65   72    61
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19    7   10   22    6   15   13   12   22      |T   21   29   24   24   30   21   28   24   23   25    21
 WRMS |    9   19    7   10   20    6   15   12    9   20      |NE  19   27   22   22   29   18   26   22   20   23    19
 MEDI |    9   19    7    9   20    6   14   13   11   20      |MD  19   28   21   22   29   19   28   24   21   23    19

Table 3.1660.5   GPS week: 1660   Day: 5   MJD: 55869.000                            

        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  |    9   14    7   10  ---    7   15   16   15   18    4 |    28   38   33   23  ---   26   44   22   27   30    28
   2  |   10   24    7   11   14    5   17   17   10   33    5 |    15   30   17   15   24   15   25   27   14   34    16
   3  |   10   13    5   10   15    4   10   10    8   21    3 |    12   17   17   15   17   13   20   16   13   20    13
   4  |   10   15    6    8   13    3   12   20   12   25    4 |    22   25   24   22   28   21   27   32   26   32    23
   5E |    6   18    6   10   14    4   23   11   11   16    4 |    21   31   23   25   29   22   31   25   26   26    22
   6  |   10    9    4   12   13    5    9   11   10   18    3 |    12   14   18   17   19   15   21   19   17   21    15
   7  |    9   20    6   11   27    4   16    7    7   15    4 |    18   26   20   15   31   16   25   19   18   18    16
   8  |   17   18    7   10   20    7   12   14   10   22    5 |    22   30   25   25   30   21   29   31   27   30    23
   9  |   12   17    6   11   16    5   14   13    9   18    4 |    16   23   18   23   24   15   24   23   16   20    15
  10E |   17   22   12   14   21    9   20   22   16   18    6 |    49   49   48   54   46   50   43   55   51   48    46
  11  |    6   17    6    6   18    3   12    9   14   17    4 |    15   29   20   16   32   15   30   17   17   17    17
  12  |    6   28    8   10   17    4   19   15   10   17    5 |    14   29   17   19   25   12   23   19   15   17    14
  13  |    8   19    6    9   29    6   13   10    7   20    4 |    20   31   21   18   38   17   31   17   18   15    18
  14  |    9   21    7    9   21    5   13   10   10   22    4 |    15   26   22   19   30   18   26   19   21   17    19
  15  |    7   24    5    7   21    5   14   13   12   18    4 |    13   27   16   17   34   13   25   20   16   18    14
  16  |   11   22    7   11   16    4   14   14   12   24    4 |    13   26   17   17   22   13   23   16   19   22    13
  17  |    7   11    6   15   14    6   14    8    9   36    4 |    21   19   22   30   21   21   25   22   24   29    21
  18E |    8   28    9    9   13    6   12   11    7   16    4 |    28   38   35   33   35   32   36   31   27   30    32
  19  |   13   13    4    9   12    5   12   12   10   25    4 |    18   20   18   18   15   15   21   20   18   19    15
  20E |    9   19    8    8   20    4   15    9   14   15    4 |    17   25   23   17   23   16   24   18   20   21    17
  21  |    8   22    7    8   15    5   16   14    9   25    4 |    21   35   24   19   33   21   39   23   21   20    23
  22E |    8   21    7    6   15    3   12    9    9   17    4 |    20   26   22   20   26   19   30   20   23   23    21
  23  |   10   26    8   11   24    5   15    9   12   22    5 |    17   34   21   17   30   15   28   16   15   13    15
  25  |    8   17    7   10   17    3   13   13   12   18    4 |    14   22   21   20   28   15   28   16   19   22    16
  26  |    7   12    5    9   17    5    9   13   11   17    3 |    20   21   17   21   27   16   21   24   19   19    16
 X27  |   17   20   10   18  ---   20  ---   16  ---   36    7 |    16   26   21   30  ---   19  ---   25  ---   15    17
  28  |    8   22    7   11   19    5   15   10   11   21    4 |    16   29   15   20   27   16   25   20   22   19    15
  29  |    9   17    9   12   15    5   20   13   18   32    5 |    21   26   33   25   23   25   28   26   28   26    25
 X30  |   10   17    7    9   15    5  ---   15    9   27    4 |    19   26   19   23   21   17  ---   19   19   33    18
  31  |    6   22    6   13   30    4   17   14   10   22    5 |    16   29   16   21   32   15   27   22   17   27    16
  32E |   19   30   12   10   22    5   17   15   17   30    6 |    55   58   53   54   55   52   58   54   53   59    52
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    7   10   19    5   15   13   11   22      |T   20   28   23   22   28   19   28   23   22   24    20
 WRMS |    9   20    7   10   16    5   14   11    9   20      |NE  17   26   20   20   26   16   26   20   19   21    17
 MEDI |    9   19    7   10   17    5   14   13   10   21      |MD  18   26   21   20   28   16   27   20   19   21    17

Table 3.1660.6   GPS week: 1660   Day: 6   MJD: 55870.000                            

        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  |    7   12    7    8  ---    7   13   15   16   22    4 |    33   43   38   39  ---   36   48   29   37   34    36
   2  |    6   22    9   10   15    6   15   17   13   36    4 |    25   39   26   26   32   25   35   33   26   41    26
   3  |    8   13    4    7   13    4   10   11   11   24    3 |    14   23   20   24   26   17   24   22   19   29    18
   4  |    6   14    6    5   14    6   12   21   13   18    4 |    15   23   20   20   22   18   24   21   18   22    18
   5E |    6   16    5    8   15    5   17   11   11   17    4 |    23   28   23   24   25   23   26   25   22   26    22
   6  |    9   12    5   10   14    3    9   12    7   26    3 |    20   26   26   31   31   23   27   30   23   37    23
   7  |    5   18    7    8   28    4   15    9   12   14    4 |    24   32   24   21   38   23   32   24   27   24    22
   8  |   14   16    6    8   18    7   13   17   10   21    4 |    26   33   28   29   31   26   33   36   31   33    27
   9  |   10   17    6    7   16    4   12   13   16   19    4 |    20   27   21   26   27   19   29   22   23   21    20
  10E |   14   20    8   10   16    5   18   25   18   18    5 |    57   55   52   52   51   52   53   59   55   50    51
  11  |    7   17    5    6   18    6   12   15   14   11    4 |    14   30   17   21   32   15   30   21   12   17    15
  12  |    5   23    9    9   15    5   19   17   14   15    4 |    14   27   20   23   24   14   23   19   21   16    16
  13  |    7   20    6    7   29    4   12   11   12   18    4 |    24   35   27   25   44   25   35   23   25   19    25
  14  |    7   21    8   10   22    3   13    9    9   21    4 |    20   29   31   29   35   24   30   28   25   20    25
  15  |    7   24    6   14   22    4   16   11   15   19    5 |    14   25   20   24   35   15   24   19   18   16    17
  16  |    9   25   10    9   18    3   18   15    9   28    5 |    12   28   17   16   22   12   23   18   12   25    13
  17  |    8   10    5   13   16    4   16   14   13   36    4 |    34   35   35   41   37   34   36   39   38   41    35
  18E |    5   22    9    7   13    5   13   12   12   15    4 |    23   29   27   24   28   23   29   23   22   22    23
  19  |    9   15    4    7   11    4   11   16   14   29    3 |    30   33   28   33   30   30   32   35   31   35    29
  20E |    7   17    5    6   20    5   11   14   14   15    4 |    17   25   22   22   25   18   25   19   20   15    17
  21  |    7   19    7    8   17    3   13   15    8   22    4 |    30   41   30   29   39   29   42   27   30   26    30
  22E |    7   19   10    8   13    4   11   10   11   15    4 |    18   25   19   24   25   19   25   22   20   17    19
  23  |    7   25    6   10   28    5   14   11   14   23    5 |    20   33   23   22   36   17   27   17   17   19    18
  25  |    6   16    7    7   15    4   13   13   13   16    4 |    13   21   20   16   26   12   28   12   13   19    13
  26  |    5   12    4   11   13    3    8   13   12   13    3 |    23   26   24   26   29   22   28   26   24   22    23
 X27  |   20   17   12   20  ---   18  ---   17  ---   18    8 |    20   29   28   38  ---   34  ---   25  ---   14    23
  28  |    9   20    4    7   20    4   14    9   11   19    4 |    18   28   21   25   33   18   23   21   22   21    19
  29  |    6   13    8   14   14    6   15   13   13   31    4 |    31   34   36   41   32   33   39   33   38   36    33
 X30  |    9   16    5   10   15    4  ---   16   11   35    4 |    21   29   21   20   23   16  ---   20   20   33    18
  31  |    6   16    7   12   29    4   16   12   11   23    4 |    23   31   24   25   36   21   33   27   26   30    22
  32E |   17   27    9    8   26    6   17   41   22   63    7 |    92   96   94   88   93   90   98  102   93  113    91
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    7    9   19    5   14   16   13   24      |T   24   32   27   29   33   25   33   28   26   28    25
 WRMS |    8   19    7    9   17    5   13   12   10   19      |NE  21   30   24   26   31   22   30   24   23   25    22
 MEDI |    7   17    6    8   16    4   13   13   12   19      |MD  21   29   24   25   31   23   29   24   23   24    22



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 4.1660   GPS week: 1660   MJD: 55864.0-55870.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2968 |U   14     8    27 |U    7    10    21 |U    9    11    19 |
emr | emr 2971 |U   16    10    31 |U    9     9    26 |    12    14    23 |
esa | esa 2976 |    14     8    28 |U    7     9    21 |     9    11    22 |
gfz | gfz 2969 |U   16     9    30 |U    7    10    22 |U    9    10    22 |
grg | grg 2784 |    17    14    34 |U    9    10    32 |    14    14    28 |
igr | igr 2972 |    14     8    27 |     7     9    22 |     9     9    20 |
igs | igs 2975 |    14     8    27 |     7     9    21 |    10    11    21 |
jpl | jpl 2816 |U   18    10    35 |U    8    10    27 |    11    12    24 |
mit | mit 2976 |U   31    21   102 |U    7    10    23 |U   12    11    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 5.1660.0   GPS week: 1660   Day: 0   MJD: 55864.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2969 |    10     7    28 |     6     9    21 |     8    13    20 |
emr | emr 2976 |    11    11    30 |     8     7    24 |    10    12    25 |
esa | esa 2976 |     9     7    28 |     6     7    20 |    10    12    22 |
gfz | gfz 2970 |    10     7    29 |     6     8    19 |    10    12    23 |
grg | grg 2784 |    15    11    31 |     7     8    28 |    12    14    27 |
igr | igr 2976 |     9     7    29 |     6     7    20 |     9    12    22 |
igs | igs 2975 |     9     7    28 |     6     7    19 |     9    12    21 |
jpl | jpl 2865 |    13     8    30 |     8     8    24 |    12    14    22 |
mit | mit 2976 |     8     9    26 |     6     7    18 |     9    12    30 |

Table 5.1660.1   GPS week: 1660   Day: 1   MJD: 55865.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2966 |     8    10    25 |     8    10    23 |    12    13    18 |
emr | emr 2976 |     9    10    27 |    11     9    27 |    18    27    23 |
esa | esa 2976 |     9    11    26 |     7    10    23 |    12    13    20 |
gfz | gfz 2971 |     9    11    27 |     8    12    29 |    13    13    21 |
grg | grg 2784 |    10    13    30 |     9     9    35 |    15    13    30 |
igr | igr 2975 |     8    11    25 |     7    10    24 |    13    12    19 |
igs | igs 2976 |     8     9    24 |     8     9    25 |    14    16    19 |
jpl | jpl 2784 |    12    13    32 |     8     9    30 |    15    14    21 |
mit | mit 2976 |    14    25   154 |     7     8    25 |    16    14    39 |

Table 5.1660.2   GPS week: 1660   Day: 2   MJD: 55866.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |    47    13    50 |     7     8    18 |     6     9    15 |
emr | emr 2972 |    47    15    53 |     8     6    23 |    10    13    21 |
esa | esa 2976 |    47    13    50 |     6     7    17 |     8    12    19 |
gfz | gfz 2971 |    46    14    49 |     6     8    19 |     8    12    17 |
grg | grg 2784 |    47    16    54 |     7     9    25 |    12    17    28 |
igr | igr 2975 |    47    14    50 |     6     8    19 |     7    12    18 |
igs | igs 2976 |    47    15    50 |     6     7    17 |     8    11    17 |
jpl | jpl 2780 |    48    13    51 |     7    10    26 |    10    14    19 |
mit | mit 2976 |    16    33   106 |     7     9    21 |     9    11    22 |

Table 5.1660.3   GPS week: 1660   Day: 3   MJD: 55867.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     7     6    18 |     8     9    22 |     9    13    23 |
emr | emr 2971 |    10     9    25 |    10     9    26 |  ----  ----  ---- |
esa | esa 2976 |     8     6    20 |     7     7    19 |  ----  ----  ---- |
gfz | gfz 2972 |     9     6    19 |     8     9    21 |     8     7    26 |
grg | grg 2784 |     9    10    24 |     9    11    25 |  ----  ----  ---- |
igr | igr 2972 |     8     6    19 |     7     8    21 |     8     6    24 |
igs | igs 2976 |     8     6    19 |     8     8    20 |  ----  ----  ---- |
jpl | jpl 2871 |    13     6    23 |     8     9    23 |    11    14    31 |
mit | mit 2976 |    16    17   114 |     7    10    24 |  ----  ----  ---- |

Table 5.1660.4   GPS week: 1660   Day: 4   MJD: 55868.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2960 |     8     7    22 |     8     6    20 |    11    10    22 |
emr | emr 2972 |    11     9    28 |     7     7    23 |    12    13    24 |
esa | esa 2976 |     6     6    21 |     7     7    21 |     9    11    24 |
gfz | gfz 2968 |     9     7    24 |     7     7    22 |    10    12    22 |
grg | grg 2784 |    13    15    38 |    10    10    42 |    13    17    25 |
igr | igr 2957 |     8     7    20 |     7     6    22 |     9    10    21 |
igs | igs 2976 |     7     5    21 |     7     6    20 |    10    11    23 |
jpl | jpl 2861 |     9     7    33 |     7     7    26 |    11    12    25 |
mit | mit 2976 |    40    21    80 |     8     9    22 |    11    10    26 |

Table 5.1660.5   GPS week: 1660   Day: 5   MJD: 55869.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2964 |    10     8    27 |     8    14    21 |     8    10    16 |
emr | emr 2970 |    13     7    29 |     7    13    27 |    16     9    29 |
esa | esa 2976 |    10     8    29 |     7    13    21 |     8    10    27 |
gfz | gfz 2967 |    15     9    30 |     8    14    20 |    11     9    28 |
grg | grg 2784 |    13    21    39 |     9    10    37 |    27    14    37 |
igr | igr 2976 |    10     8    29 |     7    12    22 |     9     8    23 |
igs | igs 2976 |    10     7    27 |     7    13    21 |    13     9    29 |
jpl | jpl 2778 |    14     8    36 |     8    11    24 |    12    10    32 |
mit | mit 2976 |    29    13    53 |     8    14    22 |    18    11    29 |

Table 5.1660.6   GPS week: 1660   Day: 6   MJD: 55870.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2971 |    10     8    21 |     8    13    24 |     7     7    20 |
emr | emr 2966 |     9    11    24 |     8    12    36 |     8    10    19 |
esa | esa 2976 |     8     7    21 |     6    12    26 |     6     7    19 |
gfz | gfz 2969 |    13    10    36 |     7    12    26 |     5     8    16 |
grg | grg 2784 |     9    10    24 |    10    17    33 |     8    12    22 |
igr | igr 2975 |     7     6    19 |     7    11    25 |     5     7    15 |
igs | igs 2975 |     8     8    21 |     7    12    26 |     6     6    18 |
jpl | jpl 2776 |    16    14    41 |     8    12    36 |     7     9    19 |
mit | mit 2976 |    91    27   179 |     8    13    28 |     8     8    22 |


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 6.1660   GPS week: 1660   MJD: 55864.500-55870.500

                                                         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       7     -29     210     -1 |      -2      9
            |      19      21      66     140      7 |       2
emr   uuuuu |      46      34     -16     117     -1 |      44     45
            |      22      23     103     180      7 |       2
esa   uuuuu |     -20     -23      32    -149     -3 |      -3     13
            |      12      11      75      71      5 |       5
gfz   uuuuu |     -22      30     -25      11      8 |      -4      9
            |      28      18      60      73      3 |       1
grg   uuuux |      56      -3      -4     242    -27 |     -69     97
            |      16      23     120      68     79 |      20
igr   xxxxx |     -34      32     -17     117      0 |       0      7
            |      22      11      41      91      3 |       1
irf   xxxxx |      -9      26       5      31     -1 |       2      9
            |      12      12      42      23      4 |       2
jpl   uuuuu |      56     -68      13     270     -6 |      33     34
            |      20      38     113      55      4 |       4
mit   uuuuu |     -44      26     -62    -155      0 |       9     13
            |      19      28      89      25      3 |       1
ngs   uuuxu |       2      24      59      52     -9 |       7     11
            |      29      59     163     259      6 |       3
sio   xxxxx |     205     -72     132     109     11 |       3     12
            |      27      38      73      96     13 |       3


Table 7.1660.0   GPS week: 1660   Day: 0   MJD: 55864.500

                                                         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 |      14       5    -135     378      0 |       0     11
emr   uuuuu |      25      63    -103     150     -2 |      46     47
esa   uuuuu |     -32     -30      75    -166     -7 |       3     15
gfz   uuuuu |     -10      19      63      69      2 |      -4      9
grg   uuuux |      63      32    -197     227     53 |     -66     99
igr   xxxxx |     -22      40     -82     207      3 |       0     10
irf   xxxxx |      -3      25      56      26     -7 |       4     11
jpl   uuuuu |      70     -53    -111     231     -5 |      38     40
mit   uuuuu |     -45      13      96    -161      2 |       8     13
ngs   uuuxu |       6      11     -30      -2      0 |       9     13
sio   xxxxx |     219     -71     232      20     -9 |       3     10

Table 7.1660.1   GPS week: 1660   Day: 1   MJD: 55865.500

                                                         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 |       2      24      -2     235      4 |       1     11
emr   uuuuu |      52      49     -36     412      0 |      46     47
esa   uuuuu |     -35     -27     180    -246     -7 |       2     15
gfz   uuuuu |     -54       4      29     -23      7 |      -4      9
grg   uuuux |      54      16    -124     348     33 |     -55     91
igr   xxxxx |     -34      28     -37     173      0 |       2      8
irf   xxxxx |      -6      37      46      65     -3 |       4     11
jpl   uuuuu |      52     -60     -90     254     -7 |      38     40
mit   uuuuu |     -23      55     -32    -184      0 |      10     13
ngs   uuuxu |      17       2    -105     489    -10 |      11     12
sio   xxxxx |     225     -40     136      33      7 |       2     10

Table 7.1660.2   GPS week: 1660   Day: 2   MJD: 55866.500

                                                         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 |      14      24     -56     424     -3 |      -1     10
emr   uuuuu |      64      10      98     267      1 |      44     45
esa   uuuuu |     -20     -32      -4    -202     -9 |      -1     15
gfz   uuuuu |     -61      41      -6     -81      7 |      -4      9
grg   uuuux |      59     -32     104     246     46 |     -47     84
igr   xxxxx |     -48      15      36     140     -1 |       2      9
irf   xxxxx |      -7      33      43      33     -2 |       2     10
jpl   uuuuu |      72     -35     -49     294    -11 |      35     37
mit   uuuuu |     -35      46      -2    -131     -3 |       8     13
ngs   uuuxu |      -4       3     -50     277     -4 |       9     12
sio   xxxxx |     221     -42     182      38     17 |       0      9

Table 7.1660.3   GPS week: 1660   Day: 3   MJD: 55867.500

                                                         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 |      54      36     -74     129      9 |      -4      9
emr   uuuuu |      77       8      62     -33     11 |      42     42
esa   uuuuu |     -17       2     -37    -124     -1 |      -7     11
gfz   uuuuu |      14      14      -8      50     10 |      -6      8
grg   uuuux |      77     -25     143     291    -78 |     -55     81
igr   xxxxx |      -8      37      24     176     -3 |      -1      6
irf   xxxxx |       8      39     -37      52      4 |      -1      8
jpl   uuuuu |      45     -48     213     338    -10 |      30     32
mit   uuuuu |     -20      62    -158    -156      5 |       6     12
ngs   uuuxu |     -46     -29      -2      10    -20 |       7     11
sio   xxxxx |     237     -35      17      65     29 |      -1      8

Table 7.1660.4   GPS week: 1660   Day: 4   MJD: 55868.500

                                                         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 |      32     -12      -8      84      0 |      -2      8
emr   uuuuu |      49      18      92    -110     -2 |      44     45
esa   uuuuu |     -10     -26     -15    -186      3 |      -6     11
gfz   uuuuu |       5      56     -95     122      7 |      -3      8
grg   uuuux |      70       7      27     262   -164 |     -67     90
igr   xxxxx |     -10      43     -39     145      3 |       0      6
irf   xxxxx |      -5      20     -28      31      0 |       2      8
jpl   uuuuu |      28     -36      80     327     -5 |      30     31
mit   uuuuu |     -51      14    -113    -121     -3 |       9     12
ngs   uuuxu |     -18     -21     130    -315    -13 |       6     11
sio   xxxxx |     184     -93     157     150     21 |       4     13

Table 7.1660.5   GPS week: 1660   Day: 5   MJD: 55869.500

                                                         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 |      18     -13      68     105    -13 |      -2      8
emr   uuuuu |      12      58     -57      13     -8 |      44     45
esa   uuuuu |      -3     -26      37     -44     -2 |      -7     11
gfz   uuuuu |     -29      39     -82     -61     10 |      -2      9
grg   uuuux |      34      -1      11     147    -30 |     -90    115
igr   xxxxx |     -63      43     -27     -30      3 |      -1      6
irf   xxxxx |     -26      24      -9      -8     -2 |       2      8
jpl   uuuuu |      39    -108      55     266      0 |      29     30
mit   uuuuu |     -63       6     -90    -146     -4 |       9     13
ngs   uuuxu |      44      61      88     -17     -6 |       3      8
sio   xxxxx |     169     -88     144     190      6 |       6     16

Table 7.1660.6   GPS week: 1660   Day: 6   MJD: 55870.500

                                                         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     -14       4     113     -4 |      -4      9
emr   uuuuu |      41      29    -170     122     -8 |      43     44
esa   uuuuu |     -25     -24      -9     -78      4 |      -8     11
gfz   uuuuu |     -18      36     -73      -1      9 |      -2      9
grg   uuuux |      36     -19       9     173    -47 |    -102    121
igr   xxxxx |     -56      19       6       8     -4 |      -1      5
irf   xxxxx |     -27       5     -38      20      0 |       1      7
jpl   uuuuu |      85    -134      -5     180     -2 |      28     29
mit   uuuuu |     -69     -13    -136    -188      1 |       9     12
ngs   uuuxu |      17     141     379     -81     -9 |       2      8
sio   xxxxx |     178    -139      58     269      4 |       6     16



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