[IGSREPORT-20907] Wk 1690 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Thu Jun 14 11:33:43 PDT 2012


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1690   (May 27, 2012 - Jun 02, 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:

igs1690[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1690[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1690[0-6].cls  IGS GPS clock combination summary report.
igs16907.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs16907.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and
    JPL. The other centres are excluded because of poorer consistency (GRG),
    they provide broadcast clocks (NGS), or clock corrections are not provided
    (SIO).  The clock information not used is still compared to combination for
    completeness.  
    The value of 999999.999999 microseconds, according to the sp3 format 
    convention, is used to signify that no clock solution is available and 
    therefore must not be used.

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new solution from CNES/GRGS (GRG) is included with
    weight except for the clock and LOD combinations.

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

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | 30 30 KOUC FLRS KOUC
                0  |  ESA   | 30 30 MDVJ NNOR UNSA
                0  |  GFZ   | 30
                0  |  JPL   | 30
                0  |  MIT   | 4 31 4 31 IENG GODE IENG
                1  |  COD   | KOUC KOUC XMIS
                1  |  EMR   | 30 30 HERS
                1  |  ESA   | REUN WHIT NNOR UNSA WHIT
                1  |  GFZ   | 23 MDVJ
                1  |  JPL   | 23 30
                1  |  MIT   | 13 23 30 13 19 23 30 31 IENG IENG MDVJ
                2  |  COD   | IENG POTS WILL
                2  |  EMR   | 30 30 HERS HERS WES2
                2  |  ESA   | MDVJ REUN UNSA
                2  |  GFZ   | 30 ALRT HOLM MDVJ THU3
                2  |  JPL   | 30
                2  |  MIT   | 30 1 30 BAKO MDVJ
                3  |  COD   | WILL
                3  |  EMR   | 30 30
                3  |  ESA   | HERS MDVJ YAKT NNOR UNSA
                3  |  GFZ   | 30 BRFT TLSE TWTF
                3  |  JPL   | 30 BAKE
                3  |  MIT   | 30 31 30 31 MDVJ
                4  |  COD   | WILL
                4  |  EMR   | 30 30 HERS HERS MATE NYAL WTZR
                4  |  ESA   | REUN NNOR REUN UNSA
                4  |  GFZ   | BRFT SCH2 TWTF
                4  |  JPL   | 30
                4  |  MIT   | 18 30 18 30 GODE
                5  |  COD   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  COD   | 21 22 23 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8
                5  |  COD   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 26
                5  |  COD   | 27 28 29 30 31 32
                5  |  ESA   | 30 30 NNOR SCH2 UNSA
                5  |  GFZ   | BRFT IRKJ SSIA
                5  |  JPL   | 25
                5  |  MIT   | IRKJ MDVJ
                6  |  COD   | TSKB
                6  |  EMR   | 30 HERS SCH2
                6  |  ESA   | IRKJ
                6  |  GFZ   | 30 BRFT PDEL TIDB
                6  |  GRG   | IRKJ
                6  |  JPL   | SCH2
                6  |  MIT   | 30

 5. 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.
    

 6. 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  |     .4    -.7   -1.0     -55    -34     38     .14
       EMR  |     .9   -4.1   12.4       3      9    -14     .53
       ESA  |    1.2     .0   19.6     -26     41     47     .16
       GFZ  |    -.7     .2     .6     -31     25    -11     .03
       GRG  |    6.7    1.0   25.6     -30     16    -16    -.08
       JPL  |    1.1   -1.6   14.4     -25     -6     -4     .45
       MIT  |    4.3   -2.3   22.6     -40     34    -76     .06
       NGS  |    5.4   -2.5   30.9    -101     10     16     .26
       SIO  |   -2.7   -1.7   -1.1     -33     26     68     .23


 7. 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.

 8. 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.

 9. 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 1.1690.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1690.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 2.1690.[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 3.1690.[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 5.1690.0-6).

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 1690 summary.                       (May 27, 2012 - Jun 02, 2012)

Table 1.1690.a   GPS week: 1690   MJD: 56074.000-56080.000

         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  260|    0     0    -4    20    80    14  -.23    8    8 |    -709     347 142872 142912
        |    0     0     0    10    13    14   .03           |     655     840
emr   92|    0    -1    -3  -108    48   -15   .37   18   18 |    4761      49     13     88
        |    0     2     1    14    29    16   .04           |     555    1123
esa  167|    0     0     2   -38   -15   -23   .26    6    6 |    -230    -925     11    114
        |    0     0     0    13    29     6   .04           |     575    1227
gfz  195|    0     0     0   -37   -76    -7  -.17   11   10 |     109     151     29    104
        |    0     0     1    33    73     5   .05           |     543    1166
grg  126|    1     1     8   -29    -1     0   .58   15   13 |    -201     446     57    227
        |    1     0     2    11    10    18   .13           |     268     663
igr  n/a|    0     0    -2   -52     6   -17  -.08    4    4 |    2265     767     18     67
        |    0     0     0    10    14    11   .02           |    1665     720
jpl  156|   -1     0    -7   -35    29    43   .52   14   14 |    3694     -34     17     91
        |    1     1     1    13    19    10   .03           |     413     857
mit  255|    0     0    -1     2   -49   -25  -.50   11   10 |    -286     491     21    171
        |    0     0     1    19    21    16   .04           |     235     608
ngs  220|    0     0     8   160     3    -8  -.21   11    9 |  689031 -142631   2114   3732
        |    1     1     1    21    43    12   .04           | 1824907  378063
sio  239|   -2     2    -7    -2   -16    85  -.45   21   19 |     ---     ---    ---    ---
        |    0     0     1    19    21    11   .03           |     ---     ---


Table 1.1690.b   GPS week : 1690   MJD: 56074.000-56080.000   

         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    4    4    5    4 |
   2  |    4    4    4    4    4    4    4 |
   3  |    3    4    4    3    3    3    3 |
   4  |    4    4    4    4    4    4    4 |
   5  |    5    4    4    4    4    4    4 |
   6  |    3    3    3    3    3    3    3 |
   7  |    5    4    4    4    4    4    4 |
   8  |    4    3    3    3    3    3    3 |
   9  |    4    4    4    4    4    4    3 |
  10  |    4    4    4    4    4    4    4 |
  11  |    5    5    5    5    5    6    5 |
  12  |    4    4    5    4    4    5    4 |
  13  |    5    5    5    5    5    4    4 |
  14  |    4    4    4    4    4    4    4 |
  15  |    5    5    5    4    5    4    4 |
  16  |    5    5    4    4    4    4    4 |
  17  |    4    4    4    4    5    5    5 |
  18  |    4    4    4    4    4    4    4 |
  19  |    4    4    4    4    4    4    4 |
  20  |    4    4    4    4    4    4    4 |
  21  |    4    5    3    3    3    4    4 |
  22  |    3    3    4    3    4    4    4 |
  23  |    5    5    5    5    5    4    4 |
  24  |    0    0    0    0  ---  ---  --- |
  25  |    4    4    5    4    5    5    6 |
  26  |    4    4    4    4    4    4    4 |
  27  |    4    4    4    3    4    4    3 |
  28  |    4    4    3    3    4    4    4 |
  29  |    5    4    5    5    5    5    5 |
  30  |    7    7    6    5    5    5    5 |
  31  |    5    4    4    4    4    4    3 |
  32  |    5    5    5    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 2.1690.0   GPS week: 1690   Day: 0   MJD: 56074.000                            

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  260|    0     0    -5     5    59     3  -.22    8    8 |    -645     359     18     69
        |                     41     0                       |
emr   92|    1     4    -2   -96    32    10   .33   19   19 |    4244    1213     14     95
        |                    -28   -70                       |
esa  167|    0     0     2   -34   -23   -16   .30    7    7 |      75    -733     12    100
        |                     -7    28                       |
gfz  195|    0     0     0   -24   -27    -9  -.13   11   10 |     337     576     28    105
        |                     24     4                       |
grg  126|    3     1     7   -44     0   -26   .47   17   15 |    -384    1351     61    207
        |                      4   -18                       |
igr  n/a|    0     0    -3   -59     0    -6  -.07    4    4 |     477     974     17     74
        |                    -12     5                       |
jpl  156|   -2    -2    -4   -35    29    52   .53   15   14 |    3851     674     16     87
        |                     13   -33                       |
mit  255|    0    -1     0    -3   -24   -27  -.46   14   11 |    -471    1289     20    171
        |                    -41    14                       |
ngs  220|   -1    -1     6   155   -32    -1  -.27   11    9 |    -583     236   2011   4034
        |                    -82    27                       |
sio  239|   -3     1    -7    -8     0    88  -.49   24   20 |     ---     ---    ---    ---
        |                    -68    12                       |

Table 2.1690.1   GPS week: 1690   Day: 1   MJD: 56075.000                            

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  260|    0     0    -4     5    88    24  -.19    7    7 |    -164    -731     18     76
        |                     52   -14                       |
emr   92|    0     1     0  -116    41   -38   .44   20   19 |    4402    1793     16    102
        |                     -5   -59                       |
esa  167|    0     0     2   -47    10   -24   .29    7    7 |    -435     350     11    130
        |                    -22     1                       |
gfz  195|    0    -1     2   -16  -134   -15  -.12   11   10 |    -394    2127     26     96
        |                     16    -1                       |
grg  126|    2     1     7   -28   -12   -14   .50   18   15 |    -395    1256     62    203
        |                     11   -33                       |
igr  n/a|    0     0    -3   -40    31   -13  -.05    5    5 |     338    2081     19     64
        |                    -39   -12                       |
jpl  156|   -1     1    -7   -50    14    51   .56   16   15 |    3484    1411     15     83
        |                     12    -3                       |
mit  255|    1     0     0    12   -73   -31  -.46   12   10 |    -409    1049     22    168
        |                    -30    38                       |
ngs  220|   -2     0     6   145    23    -7  -.22   10    8 |    -285    -496   2114   4168
        |                   -132    65                       |
sio  239|   -3     1    -8    -2   -46    96  -.45   22   21 |     ---     ---    ---    ---
        |                    -70    17                       |

Table 2.1690.2   GPS week: 1690   Day: 2   MJD: 56076.000                            

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  260|    0     0    -4    22   103     1  -.22    8    8 |   -1228    1399     19     69
        |                     47   -45                       |
emr   92|    0    -2    -2  -107    77    -9   .40   19   19 |    4597     431     11     76
        |                      9   -79                       |
esa  167|    0     0     3   -36    39   -26   .32    7    7 |     -47   -2003     10    107
        |                     -4     8                       |
gfz  195|    0     0     0   -70  -202     0  -.12    9    9 |     481    -558     27    108
        |                      3    24                       |
grg  126|    1     1     6   -23   -10     3   .47   16   15 |      -1     -61     66    246
        |                    -22   -31                       |
igr  n/a|    0     0    -1   -44    22   -22  -.05    4    4 |    1069    1000     17     64
        |                      0    13                       |
jpl  156|   -1     1    -8   -19    20    49   .55   16   16 |    3557     135     16     90
        |                    -18    22                       |
mit  255|    1     0     0    -8   -71     7  -.47   11   10 |    -112    -121     23    176
        |                    -37    34                       |
ngs  220|    0     0     8   194    72   -16  -.20   10    8 |   -1085    1206   2068   3432
        |                    -50    49                       |
sio  239|   -1     2    -8   -22   -31   100  -.40   20   18 |     ---     ---    ---    ---
        |                    -68    15                       |

Table 2.1690.3   GPS week: 1690   Day: 3   MJD: 56077.000                            

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  260|    0     0    -4    25    79    33  -.21    7    7 |   -1808    1554     16     63
        |                     28     1                       |
emr   92|    0    -1    -4   -86    76   -25   .36   20   20 |    5572    -505     12     83
        |                    -32  -116                       |
esa  167|    0     0     2   -36   -30   -14   .25    6    6 |   -1401    1102     12    139
        |                     -6     7                       |
gfz  195|    0     0     0   -71   -79   -10  -.16   11   11 |    -115     297     27    114
        |                     18    36                       |
grg  126|    2     1     9   -14   -11   -10   .52   15   13 |    -541     766     56    234
        |                    -31   -16                       |
igr  n/a|    0     0    -2   -50     2   -26  -.09    4    4 |    2726     191     17     70
        |                     -8    23                       |
jpl  156|   -3    -1    -7   -25    16    24   .50   14   13 |    4295    -734     17     85
        |                    -34    -9                       |
mit  255|    1     0     0   -20   -48   -35  -.50   11   10 |    -597     941     20    180
        |                    -21    33                       |
ngs  220|    1     0     9   185     2   -28  -.17   11   10 |   -1390     966   1977   3622
        |                    -72    87                       |
sio  239|   -1     3    -7    -6     1    92  -.41   19   21 |     ---     ---    ---    ---
        |                    -75     3                       |

Table 2.1690.4   GPS week: 1690   Day: 4   MJD: 56078.000                            

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  260|    1     0    -3    22    81    24  -.25    8    8 |    -204    -220     17     53
        |                     70   -49                       |
emr   92|    1    -1    -3  -109    77   -21   .35   18   18 |    5540   -1062     13     78
        |                     -1   -99                       |
esa  167|    0     0     2   -63   -37   -21   .23    6    6 |     126   -1441     12    105
        |                     -5    17                       |
gfz  195|    0     0    -1    11   -89    -1  -.19   12   12 |     769   -1455     30     91
        |                      7    82                       |
grg  126|    0     1     7   -19     6    14   .58   13   11 |     226    -190     60    288
        |                     -6   -25                       |
igr  n/a|    0     0    -3   -56    -4   -28  -.10    5    5 |    3373    -129     17     57
        |                      1    37                       |
jpl  156|   -2    -2    -9   -56    58    39   .50   14   13 |    4045    -941     19     82
        |                     25   -30                       |
mit  255|    0     0    -1    38   -64   -42  -.54   11    9 |     104     -44     19    158
        |                    -43    23                       |
ngs  220|    0    -3    11   147    36   -15  -.26   12   11 |    -178    -288   2427   3923
        |                    -22    63                       |
sio  239|   -1     3    -7    39   -35    70  -.46   20   19 |     ---     ---    ---    ---
        |                    -89    -4                       |

Table 2.1690.5   GPS week: 1690   Day: 5   MJD: 56079.000                            

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  260|    0     0    -4    28    69    -5  -.24    8    8 |       0       0 999999 999999
        |                     17     4                       |
emr   92|    0    -4    -2  -133    26    -3   .32   17   17 |    4395    -468     16    100
        |                     10   -63                       |
esa  167|    0     0     0   -29   -44   -33   .24    7    7 |    -263   -1764     10     97
        |                     -7     2                       |
gfz  195|   -1     0     0   -70    -9    -9  -.18   12   12 |    -750     725     31    104
        |                     -1    81                       |
grg  126|    0     1    10   -40    12    18   .70   13   12 |    -255     -34     49    220
        |                    -12   -18                       |
igr  n/a|    0     0    -4   -72    -1   -27  -.09    4    4 |    3145     863     21     71
        |                     -2     3                       |
jpl  156|    0    -2    -8   -35    13    53   .48   13   13 |    3025     -53     19    107
        |                      4   -16                       |
mit  255|    0     0    -3     9   -22   -24  -.54   11   10 |    -215    -152     23    187
        |                    -33    20                       |
ngs  220|    0     0    10   153   -28    11  -.21   11    9 | 4827532 -999999   2145   3535
        |                    -83    22                       |
sio  239|   -1     2    -6    -2    10    80  -.44   21   19 |     ---     ---    ---    ---
        |                    -77    -6                       |

Table 2.1690.6   GPS week: 1690   Day: 6   MJD: 56080.000                            

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  260|    0     0    -4    30    76    18  -.26    8    8 |    -918      72     17     55
        |                     31   -40                       |
emr   92|    0    -2    -6  -109     4   -21   .36   17   17 |    4579   -1058     15     87
        |                     -2    -7                       |
esa  167|    0     0     1   -23   -23   -29   .19    6    6 |     333   -1989     12    126
        |                    -30    15                       |
gfz  195|   -1    -1     2   -21     4    -7  -.26   10   10 |     436    -651     34    114
        |                    -39    45                       |
grg  126|    0     1    13   -37     5    20   .83   13   12 |     -59      34     51    195
        |                    -20   -17                       |
igr  n/a|    0     0    -2   -46    -8    -1  -.09    4    4 |    4733     389     18     69
        |                     -9     9                       |
jpl  156|   -1     0    -7   -26    55    36   .51   13   13 |    3606    -730     19    104
        |                    -24   -46                       |
mit  255|    0     0    -3   -11   -38   -21  -.53   11   10 |    -305     477     20    158
        |                    -16    19                       |
ngs  220|    2     0     8   139   -46     0  -.17   10    9 |    -790     -47   2061   3415
        |                    -69    45                       |
sio  239|   -2     4    -5   -15   -14    71  -.48   21   18 |     ---     ---    ---    ---
        |                    -56     3                       |

       
       
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 3.1690.0   GPS week: 1690   Day: 0   MJD: 56074.000                            

        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   17    4   15   11    4   17   11   11   47    5 |    37   44   41   49   43   38   41   40   49   64    41
   2  |    7   19    7    9   11    4   15   11   10   32    4 |    22   29   25   22   23   21   31   20   25   15    22
   3  |    4   11    4   12   12    3   10   10    9   19    3 |    17   22   23   24   25   17   20   16   18   20    20
   4  |   10   18    7    8   17    5    8   13    9   31    4 |    19   28   25   25   30   20   24   26   27   34    23
   5  |   12   22    8   11   14    5   19   13   12   19    4 |    18   29   20   17   28   19   30   17   18   19    18
   6  |    5   10    4   10   11    3   10    9   10   16    3 |    25   28   29   30   33   25   28   24   28   22    27
   7  |   10   19    7   13   22    3   15    9   14   19    4 |    17   28   16   20   32   15   20   14   15   20    15
   8  |    7   16    6    8   16    4   11   12   11   17    3 |    13   28   17   17   27   14   24   15   15   13    16
   9  |    5   16    6    8   17    3   14   12    8   18    3 |    15   25   16   17   22   14   22   16   12   19    16
  10  |   10   17    6   10   13    6   12   13    9   23    4 |    28   34   29   29   31   27   37   28   31   35    30
  11  |    9   12    6   15    8    5    8   11    9   58    5 |    32   40   39   44   42   36   37   33   37   60    37
  12E |   11   17    8    9   16    4   23   12    7   14    4 |    19   25   18   19   19   15   23   19   17   22    16
  13  |    6   21    8   12   29    4   15   11   11   13    4 |    13   28   15   16   36   13   22   18   17   17    15
  14  |    6   20    7   10   25    5   15    9    9   16    4 |    15   26   23   21   31   17   26   16   18   20    19
  15  |   12   15    7   13   26    3   21   15   10   21    5 |    17   28   23   23   31   17   29   20   23   22    19
  16E |    6   17    6   13   16    4   17   18   12   19    4 |    14   26   20   19   20   15   20   18   20   15    16
  17  |    6   23    9    9   15    5   18    9   10   20    4 |    23   36   27   25   34   25   34   25   25   22    25
  18  |    6   20    6    6   14    3   18    8    9   19    3 |    24   32   22   22   21   22   33   20   22   23    22
  19  |    7   18    5   15   13    3   16   15   10   24    4 |    21   28   25   28   26   20   28   20   20   20    23
  20  |    8   19    7   11   17    3   14   12   11   14    4 |    20   24   15   14   19   16   22   22   18   26    17
  21  |    5   14    6    9   10    6   13    9    9   23    3 |    26   24   21   25   25   24   28   25   28   23    24
  22  |    6   17    6    8   14    3   10   10    8   15    3 |    22   34   26   23   31   23   32   20   22   24    24
  23  |    8   26    6   12   23    5   17   10    8   17    4 |    13   30   15   15   27   14   22   16   17   19    15
 X24  |    6  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    13  ---  ---  ---  ---   22  ---  ---  ---  ---    15
  25E |    6   24    6   11   13    3   12   11    9   17    3 |    16   28   24   15   25   16   20   18   15   16    17
  26  |    6   13    5    7   19    7   12   14    9   25    3 |    15   24   19   16   25   17   25   20   16   33    17
  27  |    5   13    6    8   20    3   11   14   11   18    3 |    17   23   18   19   23   16   24   16   17   23    18
  28E |    5   16    6    7    9    3   12   12   12   19    3 |    12   26   14   14   23   13   21   18   16   14    14
  29  |    8   17    6    8   14    4   19    9   11   34    4 |    23   30   23   22   26   22   32   25   27   29    23
  30E |   12   28   10    6   17    5   22   38   25   13    7 |    21   42   26   23   28   23   37   41   31   21    25
  31  |    8   22    9    9   27    6   17   19   11   19    5 |    18   30   25   20   38   19   28   16   23   18    19
  32  |   10   24    6   12   14    5   20   17   13   18    4 |    22   29   19   20   19   18   26   25   21   25    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    7   11   17    4   15   14   11   24      |T   19   29   22   22   27   19   27   21   22   24    20
 WRMS |    8   19    7   10   15    4   14   11    9   20      |NE  20   29   22   23   28   20   27   21   22   25    21
 MEDI |    7   17    6   10   15    4   15   12   10   19      |MD  18   28   23   21   27   18   26   20   20   22    19

Table 3.1690.1   GPS week: 1690   Day: 1   MJD: 56075.000                            

        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   15    7   10    9    5   17    9   12   39    4 |    26   23   29   30   27   24   25   28   29   52    26
   2  |    7   15    6    9   12    4   16   10    6   31    4 |    12   16   18   17   15   13   19   12   15   10    13
   3  |    4   13    4   14   14    5   13    9    9   19    3 |    16   21   20   20   22   17   23   14   20   19    17
   4  |   10   13    8    8   12    7   10   10    6   28    3 |    14   19   23   23   16   14   17   23   18   32    17
   5  |    5   19    5   13   15    3   19   10    7   17    3 |    12   21   14   14   23   11   23   12   18   14    11
   6  |    5   12    5   11   12    4   13    9    9   15    3 |    21   24   24   23   25   20   26   19   22   18    21
   7  |    6   20    7   11   25    4   12    8    6   16    4 |    14   24   15   19   28   13   19   16   14   19    12
   8  |    6   13    6    7   16    5   12    8    8   14    3 |    14   21   18   19   22   16   22   18   17   20    15
   9  |    6   18    4   11   15    4   13   10    9   15    3 |    14   22   14   15   23   10   18   15   15   14    12
  10  |   10   20    8    9   14    6   12   13    8   23    4 |    26   32   27   28   27   26   32   28   28   35    26
  11  |    8   11    4   13    7    6    8    8   12   56    5 |    23   30   27   31   30   26   30   25   25   56    26
  12E |    8   17    6   10   15    4   24   12    9   13    4 |    18   20   18   20   14   16   21   19   16   22    16
  13  |    7   22    8   12   29    6   14    9   13   13    4 |    14   26   18   17   33   12   20   18   14   19    14
  14  |    6   20    7   12   24    5   12    8    9   15    4 |    20   29   24   20   33   20   24   19   23   22    20
  15  |    8   18    7   13   29    5   19   13    8   17    4 |    16   23   17   20   30   14   23   20   17   20    15
  16E |    6   17    5   10   32    4   16   17   11   20    4 |    19   24   19   19   35   19   23   26   22   19    19
  17  |    6   20    8   12   15    3   19    9   10   20    4 |    22   29   24   26   26   20   31   19   22   21    21
  18  |    7   20    6   10   12    4   13    6    7   17    3 |    19   25   18   19   16   17   22   19   18   21    16
  19  |    7   17    6   10   14    5   17   11   10   24    4 |    17   28   23   21   23   18   28   17   22   16    18
  20  |    6   20    5    9   15    4   17    9    9   12    3 |    14   19   11   14   12   12   19   17   17   22    12
  21  |    7   41   10    8   11    6   14   11   14   22    5 |    23   43   19   23   18   23   22   28   29   24    20
  22  |    6   16    6    8   13    4   10    8    8   17    3 |    19   25   25   19   25   19   24   21   22   20    19
  23  |    7   28    8   11   24    5   18   10   10   18    4 |    12   28   16   14   26   10   19   15   14   18    12
 X24  |    6  ---  ---  ---  ---   36  ---  ---  ---  ---    0 |    16  ---  ---  ---  ---   18  ---  ---  ---  ---    16
  25E |    7   26    7   11   13    4   14   12   10   11    4 |    13   31   21   17   24   15   16   16   19   16    15
  26  |   10   15    5   11   20    5   13   13   11   24    4 |    11   19   14   16   25   10   22   14   17   24    10
  27  |    6   14    4   11   20    4   12   12    9   17    3 |    13   20   15   16   27   11   18   16   14   14    12
  28E |    5   15    8    8   15    4   13    9   10   14    3 |     9   19   14   16   22    8   18   10   14   11    10
  29  |    9   19    6    8   12    5   21   10   11   26    4 |    14   23   15   17   16   15   23   20   21   23    15
  30E |   13   27    9    8   23    5   22   32   18   14    6 |    20   39   26   23   31   23   34   38   30   23    24
  31  |    8   21    8   13   27    9   15   10    7   15    4 |    14   28   17   18   37   16   25   15   18   18    14
  32  |    9   25    5   13   11    5   22   14   13   16    4 |    16   26   15   20   15   13   25   18   17   20    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    7   11   18    5   16   12   10   22      |T   16   25   19   19   24   16   22   19   19   22    16
 WRMS |    7   19    7   10   15    5   15   10    8   21      |NE  16   24   19   19   23   16   23   18   19   22    16
 MEDI |    7   18    6   11   15    5   14   10    9   17      |MD  16   24   18   19   25   16   23   18   18   20    15

Table 3.1690.2   GPS week: 1690   Day: 2   MJD: 56076.000                            

        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   17    5    7    8    4   21   10    8   31    4 |    33   29   34   35   31   31   33   33   37   48    32
   2  |    8   14    7    8   10    3   14    9   14   32    4 |    21   23   24   21   22   22   26   17   29   16    20
   3  |    5   11    7    9   10    3   12    9   12   18    3 |    19   21   25   20   21   18   21   17   27   19    20
   4  |    9   14    7    8   10    4   10   10   11   27    4 |    20   21   27   22   23   21   19   23   27   34    21
   5  |    6   19    6   10   15    3   17    9    9   13    3 |    19   25   19   18   26   18   27   18   23   19    18
   6  |    3   13    6    9    9    2   12    8    8   15    3 |    25   27   29   23   26   23   27   22   30   20    24
   7  |    8   19    6    6   24    3   10    5   11   14    3 |    17   26   19   17   29   15   20   16   20   21    15
   8  |    5   13    6    5   16    4   13    7    8    9    3 |    19   23   20   21   23   18   24   18   22   18    18
   9  |    8   17    6    6   16    3   12   10   12   13    3 |    19   24   19   19   25   16   24   16   23   14    17
  10  |   10   16    7    6   10    6   12   10    7   19    3 |    21   27   22   23   20   19   24   21   22   25    20
  11  |   11   13    6    9    7    5   11    9    8   53    5 |    27   31   32   31   32   26   30   25   27   55    28
  12E |   11   17    9    8   22    5   25   14    9   11    4 |    20   22   21   21   17   19   25   20   24   21    18
  13  |    8   25    8   12   29    4   13   13   13   15    5 |    21   31   20   19   33   17   23   19   22   20    18
  14  |    7   21    6    8   24    5   13    9   10   15    4 |    19   27   22   23   30   18   23   18   27   21    19
  15  |    8   22    7    9   26    4   20   12    8   14    4 |    19   27   20   18   29   17   26   16   24   17    17
  16E |    5   18    7   10   12    3   15   14   11   16    4 |    16   22   22   17   24   17   21   18   21   20    16
  17  |    6   26    7   12   13    5   20   10    9   19    4 |    24   32   27   22   22   22   31   19   26   21    22
  18  |    7   20    7    9   15    3   18    6    9   17    3 |    25   31   23   23   19   23   30   23   25   27    22
  19  |    6   19    4   12   12    3   18   13    9   24    4 |    19   27   22   22   24   18   27   16   21   18    19
  20  |    6   21    8    9   15    2   15   13    9   13    4 |    21   24   20   15   17   19   24   20   23   24    19
  21  |    6   14    6    8   13    3   13    7    7   21    3 |    31   28   25   30   24   28   27   31   32   31    27
  22  |    6   19    8    7   15    4   14    9    8   14    3 |    20   25   23   20   25   19   25   20   22   22    18
  23  |    9   28    6   10   23    4   15   11    9   18    4 |    18   31   19   14   24   16   22   16   22   19    16
 X24  |    7  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    17  ---  ---  ---  ---   20  ---  ---  ---  ---    17
  25E |    9   27    9   13   13    3   16   11   10   10    4 |    15   30   23   17   23   17   22   22   25   21    18
  26  |   10   18    5    8   16    6   13   11   12   18    4 |    16   25   18   18   23   14   23   17   21   22    15
  27  |    6   16    5    7   18    4   13   10    9   14    3 |    18   23   19   15   27   15   24   13   22   15    16
  28E |    6   18    9    5    9    4   13    9    8   13    3 |    16   22   20   15   22   13   20   12   20   14    15
  29  |   11   18    9    7   13    6   22   10   12   24    4 |    23   27   23   21   22   21   28   25   29   25    22
  30E |   11   25    8    6   15    6   22   24   20   14    5 |    24   40   27   22   29   25   37   37   35   23    26
  31  |    6   21    7    7   26    6   15   10    9   15    4 |    17   28   20   16   37   16   25   14   20   15    15
  32  |   10   20    6   10   11    3   24   16   13   19    4 |    21   28   20   20   18   19   28   20   31   22    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    7    9   16    4   16   11   10   20      |T   20   26   22   20   24   19   25   20   25   22    19
 WRMS |    8   19    7    9   15    4   16   10    8   18      |NE  21   26   22   21   25   19   25   19   25   23    19
 MEDI |    7   18    7    8   15    4   14   10    9   15      |MD  19   27   22   20   24   18   25   19   24   21    18

Table 3.1690.3   GPS week: 1690   Day: 3   MJD: 56077.000                            

        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   18    5   12   12    4   18    9   14   26    4 |    35   38   38   41   40   38   36   41   42   45    38
   2  |    4   14    6   10   10    5   12    9   11   30    3 |    19   26   20   23   22   20   25   18   24   14    20
   3  |    4   13    6   13   10    3    9    7    7   16    3 |    16   21   23   20   22   16   21   13   20   17    18
   4  |    8   13    9    9   12    4    8   11   11   26    4 |    21   22   24   25   28   21   20   24   24   34    22
   5  |    5   21    4   12   17    4   16   14   11   12    4 |    18   27   16   17   28   16   24   16   21   17    18
   6  |    6   12    6   13    9    2   10    6    8   14    3 |    20   25   28   25   28   22   26   19   23   20    23
   7  |    8   21    6    9   20    3   12    7   10   13    3 |    18   25   18   19   30   15   19   19   20   22    17
   8  |    5   15    6    9   12    5   10    9   11    8    3 |    17   22   14   18   23   16   21   19   21   17    17
   9  |    7   18    5   11   11    4   10   13   11   13    3 |    16   25   15   17   21   14   21   14   13   12    15
  10  |    8   17    6    9   11    4    8   10   10   19    3 |    24   32   29   30   32   27   29   27   29   29    27
  11  |    8   13    9   12    8    5    9   10   12   53    5 |    33   37   42   38   41   35   36   36   36   58    37
  12E |    7   19    7   12   17    4   19   12   10   12    4 |    18   27   24   24   20   19   23   21   21   23    20
  13  |    7   23    8   12   23    4   14   13   15   12    4 |    18   29   21   19   35   18   23   25   25   22    21
  14  |    7   21    5   12   19    4   12    8   12   15    4 |    18   31   26   22   30   20   26   21   21   24    22
  15  |    8   20    7   11   22    5   18   11    7   13    4 |    19   28   22   21   30   18   26   19   21   21    20
  16E |    5   18    6   10   17    2   14   14   12   18    4 |    21   26   22   21   22   20   24   24   24   25    21
  17  |    8   21    6   11   13    7   18   14    9   20    4 |    25   34   27   29   34   23   32   28   28   26    25
  18  |    6   24    5   10   15    3   15    6   10   15    3 |    21   30   19   19   21   19   27   19   19   24    19
  19  |    6   22    6   16   10    5   16   13   10   24    4 |    23   32   26   29   30   25   31   25   25   27    25
  20  |    8   23    6   10   16    4   14   11   12   12    4 |    22   28   22   23   26   22   28   22   25   24    23
  21  |    6   16    5   10    9    5   10    9    9   21    3 |    29   27   26   28   26   29   30   31   27   29    27
  22  |    5   18    5   11   17    3   12    7    8   14    3 |    19   26   21   20   29   19   27   19   20   23    20
  23  |    7   29    8   13   18    3   13    8   14   19    4 |    16   33   21   17   28   17   23   18   25   21    19
 X24  |    6  ---  ---  ---  ---   27  ---  ---  ---  ---    0 |    24  ---  ---  ---  ---   19  ---  ---  ---  ---    26
  25E |    7   25    6   16   15    5   13   13   13   12    4 |    20   31   19   16   25   17   17   22   21   21    18
  26  |    8   20    7    9   13    5    9   14   13   17    4 |    13   23   16   16   21    9   19   13   11   20    13
  27  |    6   17    4    9   12    3    8   12   11   12    3 |    16   23   17   19   22   15   20   15   16   16    16
  28E |    5   20    7   10    9    4   12    8   10   13    3 |    13   23   14   16   21   13   19   14   18   17    15
  29  |   11   25    6   12   11    4   21   11   11   23    4 |    21   36   24   25   25   21   31   26   22   27    23
  30E |   10   22    8   13   17    5   16   17   16   12    4 |    21   38   24   24   33   22   37   24   27   23    24
  31  |    6   19    5   11   21    5   12    9   12   15    4 |    19   28   20   21   36   20   28   17   15   19    19
  32  |   10   18    6   13   11    3   19   11   12   16    4 |    22   23   21   21   22   17   28   18   16   22    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   20    6   11   15    4   14   11   11   19      |T   20   28   22   22   27   20   25   21   22   23    21
 WRMS |    7   20    6   11   13    4   13   10   10   21      |NE  20   28   22   23   28   20   26   21   22   24    21
 MEDI |    7   19    6   11   13    4   12   11   11   15      |MD  19   27   22   21   28   19   26   19   21   22    20

Table 3.1690.4   GPS week: 1690   Day: 4   MJD: 56078.000                            

        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  |   11   14    7   11    9    4   17    8    9   24    4 |    35   36   40   35   35   35   35   39   39   43    35
   2  |    8   13    9   11    8    3   12    9   13   31    4 |    16   21   21   19   21   18   24   17   18   16    17
   3  |    5   13    6   12    9    3   11    7    9   17    3 |    18   24   24   19   26   18   24   16   19   20    20
   4  |    9   12    6   10    9    5    7   10   12   26    3 |    18   21   22   20   23   20   19   23   26   34    20
   5  |    3   22    6   12   17    4   18   11    9   12    4 |    17   25   19   15   32   17   25   23   17   26    18
   6  |    6   12    5   12    8    4    9    7   10   12    3 |    25   27   28   23   31   23   27   21   25   20    24
   7  |    8   20    8   11   13    5   13    5   12   16    3 |    19   26   16   18   23   16   21   17   12   23    15
   8  |    5   15    5   11   10    4   10    8   14    8    3 |    16   23   14   16   16   15   19   18   14   16    14
   9  |    7   17    5   11    9    5   12   14   14   13    3 |    19   27   23   22   23   20   25   25   22   18    21
  10  |    9   15    7   14   10    5   10   10   10   19    3 |    20   25   20   26   24   17   23   21   22   22    20
  11  |   11   11    6   12    8    6    6    9   11   52    5 |    32   37   38   33   39   31   35   32   32   54    33
  12E |    7   17    9    8   12    4   17   14    9   12    4 |    20   24   25   24   23   21   23   22   22   26    21
  13  |    6   25    7   10   20    7   14   12   14   11    4 |    21   34   22   21   29   19   27   22   19   22    20
  14  |    6   21    6   13   13    4   11    9    9   14    3 |    13   26   18   16   24   14   20   14   14   19    15
  15  |   10   21    4   13   16    6   19   12   13   13    4 |    20   29   23   26   30   19   29   29   23   33    23
  16E |    6   15    6   12   19    2   13   11   11   23    4 |    17   24   20   17   20   16   20   18   24   24    17
  17  |    8   19    6   13   12    5   17   15   15   20    4 |    21   33   25   25   30   21   30   25   20   24    22
  18  |    7   22    6   11   16    4   14    8   14   16    4 |    17   28   16   15   19   16   24   21   19   26    15
  19  |    6   17    4   16   12    3   15   15    9   24    4 |    22   29   25   24   30   21   29   23   21   21    22
  20  |    7   22    9   11   17    5   17    9   12   12    4 |    21   29   19   19   21   20   26   23   23   28    19
  21  |    6   15    5   10    8    6    9    8   10   21    3 |    21   21   20   24   16   20   17   26   21   23    19
  22  |    6   18    6   12   17    3   12    9   10   14    3 |    12   23   14   13   28   11   20   14   13   19    12
  23  |    6   27    8   11   15    5   14    9   12   19    4 |    19   34   21   18   21   17   25   20   19   23    18
  25E |    8   25    6   15   13    6   14   15   17   15    4 |    31   36   31   28   32   29   20   33   30   33    29
  26  |   11   20    6   10   11    6    9   14   15   20    4 |    15   26   22   18   22   16   24   26   16   33    18
  27  |    8   14    5   11   10    5   12   14   12   13    3 |    17   24   19   21   23   17   25   25   18   17    19
  28E |    6   16    6   10    9    3   11   12   14   16    3 |    11   21   18   14   20   12   18   20   17   24    13
  29  |    9   21    4   13   10    6   18   11   12   26    4 |    20   30   20   21   24   19   26   23   21   26    19
  30E |    9   22    6   17   13    5   17   13   19   10    4 |    21   41   28   30   36   23   36   25   28   21    26
  31  |    6   18    5    9   16    7   12    7   12   14    3 |    16   26   18   16   30   15   24   11   16   13    15
  32  |    9   20    5   12   11    4   18   12   12   15    4 |    20   30   23   23   26   21   30   26   25   24    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   18    6   12   13    5   14   11   12   20      |T   19   27   22   21   25   19   24   22   21   24    20
 WRMS |    8   18    6   11   11    5   13    9   11   19      |NE  19   27   21   21   25   19   25   22   20   24    19
 MEDI |    7   18    6   11   12    5   13   10   12   16      |MD  19   26   21   21   24   19   24   23   21   23    19

Table 3.1690.5   GPS week: 1690   Day: 5   MJD: 56079.000                            

        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  |   11   14    6   16   12    4   17    7   15   21    4 |    28   31   30   27   31   28   30   28   35   32    28
   2  |    6   12    9    9    7    4   12   14    8   31    4 |    15   20   19   16   20   15   23   17   17    9    16
   3  |    5   12    5   12   12    3    9    6    7   18    3 |    14   25   21   20   27   17   23   14   18   19    18
   4  |    8   11    9   11   10    3    9   11   10   29    4 |    12   18   17   13   18   12   13   16   15   34    13
   5  |    6   20    6   12   21    4   18    9    9   13    4 |    15   26   18   16   36   19   28   17   17   19    17
   6  |    6   13    5   10   11    3    9    6    6   14    2 |    17   27   23   22   30   19   25   16   21   17    21
   7  |    8   19    9   13   11    4   14    8   13   22    4 |    16   26   19   15   20   14   20   15   15   22    15
   8  |    5   13    7   13   13    5   11    7    9    9    3 |    13   23   19   12   14   13   20   17   15   14    15
   9  |    7   12    5   12   12    4    9   16   12   11    3 |    17   25   20   20   19   18   23   23   18   17    20
  10  |    9   13    7   14   11    4   10   11   13   21    4 |    24   28   26   24   27   23   28   25   30   24    25
  11  |   10   10    6   14   12    7    8    9   15   54    5 |    24   34   30   27   38   25   32   22   27   56    27
  12E |    7   18    7   11   19    3   17   15   12   13    4 |    18   23   23   24   20   21   20   20   24   23    21
  13  |    6   21    8   12   15    4   14   12   10   13    4 |    20   32   24   22   29   20   24   23   24   25    22
  14  |    6   18    4   12    8    4   10    8   13   12    3 |    15   27   20   16   24   17   22   17   21   19    18
  15  |   10   17    5   11   12    6   17   11   10   14    4 |    21   31   27   24   29   21   28   28   24   32    24
  16E |    6   15    8    9   14    3   14   12    9   24    4 |    17   23   20   20   22   16   19   18   20   26    18
  17  |    9   17    8   15   13    4   16   14    9   20    4 |    20   30   19   21   28   20   29   25   22   22    20
  18  |    6   18    8    8   18    5   15    7    8   15    3 |    16   23   15   14   22   15   22   19   12   23    14
  19  |    6   14    7   15   13    4   14   10    9   25    4 |    19   29   24   21   30   19   27   18   18   16    21
  20  |    7   17    8   13   17    3   15    9   11   14    4 |    18   24   18   15   23   18   22   21   18   26    17
  21  |    6   14    6   14   10    4    9    9    6   21    3 |    23   17   17   21   14   18   17   27   20   21    19
  22  |    6   16    7    9   19    3   11    9    6   15    3 |    14   21   17   13   33   14   22   16   14   17    15
  23  |    7   25    7   13   12    4   15   10   10   19    4 |    18   33   24   18   24   20   24   20   24   22    21
  25E |   10   17    8   10   14    5   15   14   16   20    4 |    30   39   37   33   39   32   18   35   31   40    32
  26  |    9   16    6   14   14    5   11   11    8   14    3 |    13   23   18   17   20   16   23   19   15   23    16
  27  |    6   13    5   11   12    5    9   14   10   12    3 |    18   28   23   21   22   20   24   24   20   19    21
  28E |    8   15    6   11   11    5    9   10   11   12    3 |    11   22   15   11   22   12   19   16   16   16    13
  29  |   11   20    6   12   13    4   19   11    7   29    4 |    14   25   17   17   20   14   21   18   18   21    15
  30E |    9   28    6   12   14    4   17   17   12   14    5 |    19   40   23   20   32   20   33   25   20   20    22
  31  |    8   19    6   12   12    6   14   10   12   16    4 |    15   27   19   16   28   16   25   12   16   12    16
  32  |   10   19    6   12   11    4   18   12   15   14    4 |    24   32   27   21   31   23   30   26   27   25    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    7   12   13    4   13   11   11   21      |T   18   26   21   19   25   18   23   20   20   22    19
 WRMS |    8   17    7   12   12    4   13   10    9   19      |NE  17   26   21   18   25   18   24   20   20   22    19
 MEDI |    7   16    6   12   12    4   14   10   10   15      |MD  17   26   20   20   24   18   23   19   20   22    19

Table 3.1690.6   GPS week: 1690   Day: 6   MJD: 56080.000                            

        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  |   12   14    7   11    9    4   16    7   11   21    4 |    43   48   50   47   52   46   49   46   51   41    47
   2  |    9   10    5    9   13    4   11   18   12   30    4 |    22   26   25   22   24   22   26   28   27   11    23
   3  |    4   10    7    8   11    4    9    8   10   18    3 |    25   24   25   23   31   23   27   25   31   25    27
   4  |   10   13    8    7   12    3    6   15   11   31    4 |    19   21   25   23   27   19   19   25   25   41    21
   5  |    8   23    5    9   20    3   16    8    9   10    4 |    14   28   18   16   36   16   26   15   18   18    17
   6  |    5   12    6    7   10    3   10    8    7   13    2 |    29   29   29   27   35   26   30   27   31   24    29
   7  |   10   18    6    9   10    3   11   12   11   28    4 |    21   27   16   19   22   17   20   19   14   29    17
   8  |    6   14    5    9   15    4   11    8   11   14    3 |    19   22   18   18   17   17   21   21   15   20    17
   9  |    6   15    5   10   12    3    9   11   10   11    3 |    19   22   20   18   19   17   22   17   18   13    18
  10  |    9   12    6   11   14    4   10   11   12   24    4 |    33   39   36   39   38   35   36   39   33   40    33
  11  |   10   10    6   10   11    5    7    8   10   54    5 |    40   49   46   43   55   43   47   41   47   69    45
  12E |   10   22    7   10   13    4   17   12   12   10    4 |    28   25   24   24   27   23   21   26   25   26    22
  13  |    6   19    5   11   12    3   11   10   13   13    3 |    17   29   19   21   30   18   23   20   21   19    20
  14  |    6   17    7    9    8    4   12    7   13   11    3 |    15   24   21   17   24   17   21   19   20   22    17
  15  |   10   14    5   10   10    4   19   11   11   17    4 |    24   27   24   23   32   22   30   23   31   26    25
  16E |    7   19    7   11   13    3   14   11    9   27    4 |    22   26   24   24   32   21   26   22   20   34    21
  17  |   11   19    8   12   12    4   17   15   10   20    4 |    25   30   24   28   31   24   31   26   27   25    24
  18  |    7   21    6    6   19    3   16    8    9   15    4 |    18   28   14   13   24   15   22   19   11   25    14
  19  |    6   17    6   14   11    3   13    9   12   27    4 |    26   35   30   27   38   27   35   25   27   27    28
  20  |    7   20    6   10   16    4   11   10    9   15    3 |    19   25   15   16   22   15   20   22   17   28    18
  21  |    6   11    6   10   10    4   10   10    8   22    3 |    29   21   24   30   22   25   24   33   23   29    25
  22  |    5   18    8    8   19    4   11   11    9   14    3 |    14   23   16   13   31   12   20   19   12   19    13
  23  |    6   23    6   13   11    3   15   10   10   16    4 |    18   34   20   16   25   16   25   18   21   18    20
 X25E |   12   18    9   18   16    6  ---   22   18   20    6 |    63   65   61   62   67   59  ---   66   57   54    62
  26  |    9   16    6   11   15    4   11   11    7   12    3 |    14   18   14   11   19   11   19   13   12   13    12
  27  |    8   12    5   11   11    2    9   12    9   12    3 |    18   19   18   17   23   15   21   16   18   14    17
  28E |    5   15    6    9   12    4    8   15    9   14    3 |    12   20   12   10   24    9   17   17   11   16    12
  29  |    9   22    6   12   12    5   19   10    9   32    4 |    21   31   24   24   26   21   30   23   22   30    22
  30E |   10   23    8   12   16    4   18    9    9   14    4 |    22   43   27   27   39   25   37   24   22   23    26
  31  |    7   15    5   10   11    6   12    7    8   13    3 |    18   26   19   20   30   19   25   13   12   13    17
  32  |   10   16    5   12   13    4   17   14   10   15    4 |    25   30   24   23   30   21   31   23   22   27    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    6   10   13    4   13   11   10   21      |T   23   29   24   23   30   22   26   24   23   26    23
 WRMS |    8   17    6   10   12    4   13   10    9   18      |NE  22   28   23   22   29   21   26   23   23   25    22
 MEDI |    8   16    6   10   12    4   11   10   10   15      |MD  21   27   24   23   30   21   25   23   22   25    21



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 4.1690   GPS week: 1690   MJD: 56074.0-56080.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3024 |U    6     5    16 |U    7     7    24 |U  118    97   229 |
emr | emr 2971 |    10     7    22 |U    9     9    29 |    20    30    32 |
esa | esa 2976 |     8     6    19 |U    8     9    26 |    18    30    27 |
gfz | gfz 2970 |U    8     6    19 |U    8     9    27 |U   20    30    28 |
grg | grg 2976 |U   18    15    45 |U   15    19    52 |    31    53    58 |
igr | igr 2973 |     8     6    19 |     8     8    26 |    19    30    27 |
igs | igs 2950 |     8     6    19 |     8     8    25 |    18    30    27 |
jpl | jpl 2957 |    10     8    25 |U    8     8    28 |    20    32    30 |
mit | mit 2976 |     8     6    21 |U    9    11    32 |U   19    33    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 5.1690.0   GPS week: 1690   Day: 0   MJD: 56074.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |     5     5    14 |    12    10    47 |     7     8    23 |
emr | emr 2972 |     7     6    16 |    10     8    33 |     9    14    30 |
esa | esa 2976 |     6     5    12 |    10     9    35 |     7     6    21 |
gfz | gfz 2971 |     6     5    12 |     9     9    31 |     7     6    23 |
grg | grg 2976 |     7     7    18 |     9    12    50 |    10    11    29 |
igr | igr 2971 |     5     5    13 |    11     9    39 |     8     7    21 |
igs | igs 2928 |     5     4    12 |     9     9    31 |     7     7    24 |
jpl | jpl 2971 |     6     5    14 |    11    10    34 |     8     9    20 |
mit | mit 2976 |     8     8    16 |    10    11    41 |     7     8    25 |

Table 5.1690.1   GPS week: 1690   Day: 1   MJD: 56075.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3066 |     4     5    13 |     5     7    19 |    22    57    32 |
emr | emr 2972 |     6     7    15 |     8     7    29 |    27    49    43 |
esa | esa 2976 |     5     6    15 |     6     7    22 |    22    56    26 |
gfz | gfz 2971 |     5     5    15 |     5    10    24 |    22    55    27 |
grg | grg 2976 |    13    17    40 |     9    12    40 |    25    68    46 |
igr | igr 2975 |     5     5    13 |     5     7    19 |    23    57    27 |
igs | igs 2968 |     4     5    14 |     5     7    20 |    22    55    30 |
jpl | jpl 2972 |     6     7    15 |     6     7    25 |    26    59    40 |
mit | mit 2976 |     5     6    16 |     8    11    31 |    31    73    48 |

Table 5.1690.2   GPS week: 1690   Day: 2   MJD: 56076.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3068 |    15     9    38 |     9     7    18 |    13    48    24 |
emr | emr 2971 |    22     9    42 |     7     8    25 |    16    44    27 |
esa | esa 2976 |    20     8    39 |     7     8    20 |    11    50    23 |
gfz | gfz 2969 |    20     7    40 |     8     8    23 |    15    49    25 |
grg | grg 2976 |    30    15    68 |    23    15    54 |    34    63    78 |
igr | igr 2976 |    21     8    42 |     7     7    20 |    13    48    24 |
igs | igs 2962 |    20     8    40 |     7     7    20 |    13    48    23 |
jpl | jpl 2971 |    21     9    42 |     8     7    22 |    16    54    28 |
mit | mit 2976 |    20     8    44 |     7     8    26 |    14    50    21 |

Table 5.1690.3   GPS week: 1690   Day: 3   MJD: 56077.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3047 |     6     4    20 |     7     7    26 |     7     9    13 |
emr | emr 2972 |     9     9    22 |    10     8    28 |     9     9    15 |
esa | esa 2976 |     7     6    22 |     8     8    27 |     8     9    17 |
gfz | gfz 2971 |     6     5    21 |     9     8    27 |     9    12    18 |
grg | grg 2976 |    18    14    47 |    18    22    71 |    35    68    53 |
igr | igr 2976 |     7     6    21 |     8     8    26 |     8    11    15 |
igs | igs 2919 |     7     6    23 |     9     8    27 |     9    12    18 |
jpl | jpl 2970 |     8     7    22 |     9     7    29 |     8    11    18 |
mit | mit 2976 |     6     6    20 |     9    10    29 |     9     8    18 |

Table 5.1690.4   GPS week: 1690   Day: 4   MJD: 56078.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     7    16 |     8     6    26 |    50    33    51 |
emr | emr 2972 |    10    11    18 |     7     8    26 |    45    30    55 |
esa | esa 2976 |     7     8    17 |     8     7    25 |    50    33    54 |
gfz | gfz 2971 |     6     7    17 |     8     8    27 |    53    36    55 |
grg | grg 2976 |    36    31    75 |    22    41    63 |    65    58   102 |
igr | igr 2967 |     8     9    15 |     8     7    25 |    51    35    52 |
igs | igs 2976 |     8     9    15 |     8     7    24 |    48    33    51 |
jpl | jpl 2972 |    13    15    52 |     8     8    25 |    51    34    51 |
mit | mit 2976 |     7     6    16 |     9     9    28 |    46    36    42 |

Table 5.1690.5   GPS week: 1690   Day: 5   MJD: 56079.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     0     0     0 |     0     0     0 |   707   488  1435 |
emr | emr 2972 |     9     6    18 |     9     8    23 |    10    21    25 |
esa | esa 2976 |     7     5    14 |     7     7    22 |     9    12    27 |
gfz | gfz 2970 |     8     5    14 |     7     8    23 |     9    12    25 |
grg | grg 2976 |    13     8    31 |    10    11    34 |    17    17    37 |
igr | igr 2976 |     7     4    14 |     7     7    23 |     9    14    26 |
igs | igs 2972 |     7     5    15 |     8     7    22 |     9    14    25 |
jpl | jpl 2972 |     7     5    15 |     8     8    25 |    10    18    25 |
mit | mit 2976 |     6     5    15 |     9     8    23 |    10    15    23 |

Table 5.1690.6   GPS week: 1690   Day: 6   MJD: 56080.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     5    14 |     9    13    33 |    25    40    27 |
emr | emr 2972 |     8     5    21 |    12    15    39 |    26    42    30 |
esa | esa 2976 |     5     5    15 |    10    13    35 |    21    42    23 |
gfz | gfz 2972 |     4     5    13 |    10    13    36 |    23    39    26 |
grg | grg 2976 |    12    15    38 |    12    22    51 |    34    90    61 |
igr | igr 2972 |     4     4    14 |    10    12    35 |    23    41    24 |
igs | igs 2927 |     4     5    14 |    10    12    31 |    22    40    23 |
jpl | jpl 2876 |     5     4    16 |     8    11    35 |    23    38    25 |
mit | mit 2976 |     5     5    16 |    12    17    46 |    20    39    19 |


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    : 10-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 6.1690   GPS week: 1690   MJD: 56074.500-56080.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      31     -64      42      84      1 |       5     17
            |      26      16      71      67      2 |       2
emr   uuuxu |      81     -16      90     355    -11 |      33     38
            |      35      18      68     126      3 |       6
esa   uuuuu |       0     -12      31      50      3 |      10     21
            |      11       6      32      44      3 |       2
gfz   uuuuu |     -28     -27       9    -110     -4 |      14     24
            |      33      19      62     104      5 |       3
grg   uuuux |      34     -13      42     -70     28 |     -44     62
            |       9      17      57      94    100 |      16
igr   xxxxx |       0     -14     -21      75      0 |       5     17
            |      14      10      50      54      3 |       2
irf   xxxxx |      11     -23      11      -8      1 |       5     18
            |       3       7      17      16      2 |       2
jpl   uuuuu |      27     -20      79     150     -2 |      14     24
            |      21      20      95      68      9 |       2
mit   uuuuu |     -15       8     -58    -138     -1 |      13     21
            |       7      16      56      45      2 |       2
ngs   uuuuu |     -40      49     -67     121      4 |      10     17
            |      20      29      68     122      6 |       2
sio   uuuuu |       5      48    -169     -99      1 |      34     38
            |       9      16      61      56      2 |       2


Table 7.1690.0   GPS week: 1690   Day: 0   MJD: 56074.500

                                                         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 |       6     -61      38     150      1 |       6     16
emr   uuuxu |      76       8      -7     371    -14 |      40     43
esa   uuuuu |     -22     -13      34      99      3 |      10     18
gfz   uuuuu |       2     -44     114     -22     -3 |      16     23
grg   uuuux |      24     -24      72    -150    -69 |     -18     44
igr   xxxxx |       1      -8      41      97     -4 |       6     16
irf   xxxxx |       6     -20       5     -18      1 |       5     15
jpl   uuuuu |      39     -33      60     181     -4 |      15     21
mit   uuuuu |      -8      21    -107    -158      0 |      14     20
ngs   uuuuu |     -21      62     -88     -21      3 |      11     16
sio   uuuuu |      -6      48    -184    -149      2 |      37     40

Table 7.1690.1   GPS week: 1690   Day: 1   MJD: 56075.500

                                                         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     -84     -13      96      3 |       5     15
emr   uuuxu |      70     -27      38     422     -9 |      37     41
esa   uuuuu |      10     -10      56      -2      1 |      10     18
gfz   uuuuu |      12     -48      38      34     -8 |      15     22
grg   uuuux |      44     -43     147    -131    -58 |     -29     52
igr   xxxxx |      23       7     -49     163      2 |       5     15
irf   xxxxx |      11     -32     -13       7      1 |       4     15
jpl   uuuuu |      14     -44     252     229      3 |      14     20
mit   uuuuu |     -27      -2    -122     -73      1 |      13     20
ngs   uuuuu |     -54     100    -143      11      2 |      10     15
sio   uuuuu |      -6      38    -270    -131      2 |      35     38

Table 7.1690.2   GPS week: 1690   Day: 2   MJD: 56076.500

                                                         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 |      59     -67     145      12     -2 |       6     15
emr   uuuxu |      93     -29     155     373     -4 |      37     41
esa   uuuuu |       6     -16       5      91      1 |      11     18
gfz   uuuuu |     -10     -23       5     -40    -10 |      16     22
grg   uuuux |      45       2      18    -130    -52 |     -39     59
igr   xxxxx |       1     -20     -67      63      0 |       7     15
irf   xxxxx |      14     -20      -1      10     -1 |       5     15
jpl   uuuuu |      -8      -2     118     219      5 |      16     21
mit   uuuuu |     -20      17     -82    -145     -5 |      15     20
ngs   uuuuu |     -35      30      -2      38      5 |      11     16
sio   uuuuu |      -1      48    -202    -168     -2 |      35     38

Table 7.1690.3   GPS week: 1690   Day: 3   MJD: 56077.500

                                                         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     -53      87     179      3 |       8     16
emr   uuuxu |     130       7      47     491    -10 |      37     40
esa   uuuuu |       7     -19      59      93      0 |      13     20
gfz   uuuuu |     -22     -43      19    -196    -10 |      16     23
grg   uuuux |      30       6       5    -144     -3 |     -50     63
igr   xxxxx |      -9     -17     -28      53      2 |       8     16
irf   xxxxx |      14     -25      38     -12      0 |       7     16
jpl   uuuuu |      23       9     -63      69    -15 |      18     23
mit   uuuuu |     -19      -4     -29     -83      1 |      16     21
ngs   uuuuu |     -73      47     -44     135     17 |      12     18
sio   uuuuu |      11      50     -83     -56      4 |      35     38

Table 7.1690.4   GPS week: 1690   Day: 4   MJD: 56078.500

                                                         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 |      61     -83     -12      95      1 |       1     19
emr   uuuxu |     111     -12     135     443    -13 |      27     34
esa   uuuuu |      -5      -8      72      10      6 |       7     22
gfz   uuuuu |     -70     -20     -13    -172      0 |       9     25
grg   uuuux |      37      -7      34     -48     61 |     -61     71
igr   xxxxx |     -25     -14     -52     116      3 |       2     20
irf   xxxxx |      12     -13       5       5      3 |       1     21
jpl   uuuuu |      42     -38      80     143      2 |      10     26
mit   uuuuu |     -11      30     -90    -170     -1 |      10     22
ngs   uuuuu |     -51       9    -146     284     -1 |       7     17
sio   uuuuu |      16      76    -177     -10      1 |      30     36

Table 7.1690.5   GPS week: 1690   Day: 5   MJD: 56079.500

                                                         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 |       3     -40     100      66      2 |       3     19
emr   uuuxu |      70     -33     174     273    -13 |      26     33
esa   uuuuu |       5     -16      -3      20      9 |       9     23
gfz   uuuuu |     -74     -22      -8    -252      4 |      10     26
grg   uuuux |      25     -11      54      43    133 |     -61     71
igr   xxxxx |       4     -21      59      16     -1 |       3     20
irf   xxxxx |       7     -23      25     -36      6 |       3     21
jpl   uuuuu |      23     -27      35     159    -14 |      12     27
mit   uuuuu |     -13      10      -2    -198      1 |      12     23
ngs   uuuuu |     -15      60     -82     273      1 |       8     18
sio   uuuuu |      13      54    -159    -111      3 |      32     37

Table 7.1690.6   GPS week: 1690   Day: 6   MJD: 56080.500

                                                         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 |      52     -63     -48      -6      1 |       6     19
emr   uuuxu |      19     -30      87     116    -12 |      25     33
esa   uuuuu |      -3      -2      -4      37      1 |      13     24
gfz   uuuuu |     -33       7     -92    -124     -5 |      13     26
grg   uuuux |      29     -12     -34      74    184 |     -51     75
igr   xxxxx |       3     -23     -48      18     -1 |       6     20
irf   xxxxx |      12     -32      20      -8      0 |       6     21
jpl   uuuuu |      58      -8      69      52      9 |      13     27
mit   uuuuu |      -7     -16      25    -138     -2 |      14     24
ngs   uuuuu |     -33      37      36     125      3 |      11     18
sio   uuuuu |       9      24    -110     -69     -2 |      35     40



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