[IGSREPORT-28431] Wk 2191 IGS Final Orbits

acc acc at igs.org
Fri Jan 21 04:49:56 UTC 2022


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2191   (Jan 02, 2022 - Jan 08, 2022)

Contacts: acc at igs.org


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 at each SP3 epoch. 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 with broadcast GPS time, the IGS clocks use
the linear combination of phase-smoothed P1 and P2 pseudorange data to remove
the 1st order ionospheric delay, with no other delay calibrations 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 over each daily arc. 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 10 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:

igs2191[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2191[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2191[0-6].cls  IGS GPS clock combination summary report.
igs21917.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs21917.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, GRG, MIT, and
    JPL. The other centres are excluded because of poorer consistency, they provide
    broadcast clocks, or clock corrections are not provided (SIO). The clock
    information not used is still compared to the combination for completeness. The
    value of 999999.999999 microseconds, according to the SP3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks
    contributed from that AC should not be included with weight in this
    combination. This is done to ensure a high level of consistency between the TRF
    and the orbital frame. However, there is an exception for the clocks if the AC
    is the reference center. In that case, only the clocks from that AC are
    included with weight.
    
    Starting week 1707:
      cod = cof${wwww}[0-6].[clk,snx,sp3] & cod = cof${wwww}7.[erp,sum]

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new orbit solution from CNES/GRGS (GRG) is included with
    weight. GRG clocks are included with weight starting 12-Aug-2012 (GPS Week
    1701, day 0, MJD 56151), after a procedural change to generate estimates in
    the center-of-figure frame instead of the center-of-mass frame. GRG LOD
    estimates are included for comparison only.

 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   | BRFT DAV1 KIRU KIRU
                0  |  EMR   | NLIB PERT
                0  |  ESA   | DAV1 BAKE DAV1
                0  |  GFZ   | 23 5 13 23 KIT3
                0  |  GRG   | 22 DAV1 SVTL DAV1 KIT3 MAS1 SVTL
                0  |  JPL   | MAW1
                1  |  COD   | ABMF ASCG BOGT DARW INVK KIT3 MAYG MCM4 STJO SUTM
                1  |  COD   | STJO
                1  |  EMR   | BADG
                1  |  ESA   | SGOC KIT3
                1  |  GFZ   | 23 23 KIT3 SGOC STJO AREQ BAKO KIT3 MDVJ SGOC STJO
                1  |  GFZ   | UNSA
                1  |  GRG   | STJO SVTL SGOC STJO SVTL
                1  |  JPL   | MCM4 BADG INVK MAC1 MAW1 MCM4 NYA1
                2  |  COD   | INVK MAYG MCM4 SAMO SGOC
                2  |  ESA   | DAV1 PTBB
                2  |  GFZ   | 3 CKSV DAV1 GODE GOLD CKSV GODE GOLD KIT3
                2  |  GRG   | 5 5 21 FLIN INVK SVTL
                2  |  JPL   | DAV1 SVTL INVK MCM4 ZECK
                3  |  COD   | 22 22 BRFT CRO1 DGAR NTUS REUN BRFT CRO1 DGAR
                3  |  EMR   | CRO1 CRO1 NLIB
                3  |  ESA   | CRO1 SAVO SVTL CRO1 SAVO SVTL
                3  |  GFZ   | 23 23 GODE POHN REUN BRFT GODE POHN REUN
                3  |  GRG   | CZTG DGAR MCM4 CZTG DGAR MCM4
                3  |  JPL   | BADG MCM4 BADG MCM4
                4  |  COD   | PIE1 PIE1
                4  |  EMR   | BADG NLIB
                4  |  ESA   | DAV1 DAV1
                4  |  GFZ   | 5 23 5 23 DAV1 GODE LHAZ DAV1 GODE LHAZ
                4  |  GRG   | GODE LHAZ MCM4 GODE
                4  |  JPL   | BADG CPVG DAEJ
                5  |  COD   | 5 5 CKIS MAYG
                5  |  EMR   | 23 23 NLIB
                5  |  ESA   | CZTG
                5  |  GFZ   | 23 23 GODE POHN POHN ZAMB
                5  |  GRG   | CKIS BRFT
                5  |  JPL   | BADG BADG
                6  |  COD   | ABMF AREG ASCG AUCK BOGT BRFT CPVG CRO1 GRAS HOFN
                6  |  COD   | KARR MANA MAYG MCIL MCM4 NLIB POHN REUN SAMO SCUB
                6  |  COD   | SGOC USUD WTZR WUHN
                6  |  EMR   | 10 NLIB
                6  |  GFZ   | 5 10 POHN POHN
                6  |  GRG   | 3 10 SVTL BRFT SVTL
                6  |  JPL   | 3 10 REUN BADG MCM4 REUN WTZR

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                1  |  GFZ   | ~04:30 | ~ -0.08 ns
                4  |  COD   | ~11:30 | ~ -0.22 ns
                5  |  COD   | ~07:30 | ~ 0.24 ns

 6. 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 AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 7. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G09 |    |    |  4 |  4 |  4 |  4 |  4 |
           PRN G14 |    |    |  4 |  4 |  4 |  4 |  4 |

 8. 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.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.
    
    Starting 17-May-2020 (GPS Week 2106, day 0, MJD 58986) all IGS products,
    are based on the updated reference frame (IGb14).
    For more information see IGSMAIL #7921.

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. 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 | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .2    -.0     .0       0      2     -3    -.19
       EMR  |   0 |     .6   -4.0   11.2     -28    -41    -29     .25
       ESA  |   0 |    -.0    -.3    -.1     -35     -7     17    -.17
       GFZ  |   0 |     .2     .0     .1      -2     -2     -2    -.02
       GRG  |   0 |    5.9   -4.5    5.8     -32     -8     -9    -.10
       JPL  |   0 |    9.3     .4   15.1      -3     -2      0     .02
       MIT  |   0 |    8.9     .3   20.3      18      2     -7    -.03
       NGS  |   0 |    3.5     .5   14.8       5    -32     14    -.12
       SIO  |   0 |    7.9     .1   25.9      27   -139     64    -.23

       COD  |   1 |     .0     .1     .2      -3      0     -2    -.17
       EMR  |   1 |    5.6   -5.6    8.8     -30    -35    -22     .31
       ESA  |   1 |    -.0    -.0    -.0     -27    -13     12    -.31
       GFZ  |   1 |     .3    -.3     .2       1     -4      4    -.13
       GRG  |   1 |   11.2   -5.3   11.5     -17      7    -39     .11
       JPL  |   1 |    6.1   -1.1    9.6      -2     -3      1     .14
       MIT  |   1 |    7.9   -2.7   16.8      27     -7    -10    -.06
       NGS  |   1 |    3.2   -2.0    1.4     -22    -15     -7    -.18
       SIO  |   1 |    6.1   -2.1   22.3      -1   -145     67    -.25

       COD  |   2 |     .1     .2     .4       0     -1     -2    -.13
       EMR  |   2 |    3.3   -3.4    6.4     -33    -24    -18     .23
       ESA  |   2 |    -.6     .1    -.3     -33    -11     32    -.18
       GFZ  |   2 |     .6    -.1     .5       4     -2     13    -.26
       GRG  |   2 |    6.4   -3.3     .1     -14    -15    -31     .03
       JPL  |   2 |    2.8   -4.3    8.2       1      0      0     .09
       MIT  |   2 |    5.2   -1.6   16.4       4    -17     -4    -.08
       NGS  |   2 |     .8    2.0    6.5      -4      4     11    -.15
       SIO  |   2 |    3.0    -.9   20.3      -2   -103     44    -.40

       COD  |   3 |     .2     .1     .3      -3     -1      0    -.13
       EMR  |   3 |    1.6   -6.7    8.1     -33    -14    -45     .37
       ESA  |   3 |    -.5    -.0    -.4     -24    -16     16    -.10
       GFZ  |   3 |     .5    -.3     .4      -1    -10     13    -.18
       GRG  |   3 |    1.3   -4.0   -1.4       6    -13    -32    -.06
       JPL  |   3 |    1.7     .2    5.4       0      0      0     .04
       MIT  |   3 |    3.2   -1.3   15.4       7     -4    -38    -.16
       NGS  |   3 |    1.3    -.1   -3.7     -29     14     24    -.23
       SIO  |   3 |    -.9     .1   17.4      21    -27     -3    -.31

       COD  |   4 |     .2     .2     .3      -3     -1     -1    -.17
       EMR  |   4 |    2.1     .7   10.7     -40    -10    -14     .08
       ESA  |   4 |    -.8    -.4    -.5     -10    -17     26    -.26
       GFZ  |   4 |     .4    -.6     .2      -3    -12      7    -.18
       GRG  |   4 |    1.6   -4.8   -1.9       7    -13    -29    -.07
       JPL  |   4 |    2.7   -2.5   12.1     -10      1     -2    -.24
       MIT  |   4 |    5.6    -.1   17.5      29    -17    -32    -.17
       NGS  |   4 |    1.6    -.8   10.2      18     -9      1     .0 
       SIO  |   4 |    -.8    2.1   27.4      73    -45     11    -.39

       COD  |   5 |     .1    -.0     .3      -3      2     -4    -.21
       EMR  |   5 |    4.8   -3.2   11.2     -36    -24    -44     .14
       ESA  |   5 |    -.6    -.3    -.3     -19     -3     12    -.34
       GFZ  |   5 |     .4    -.2     .3      -5     -7     15    -.14
       GRG  |   5 |    4.8   -3.5    3.1       1     -9    -45    -.10
       JPL  |   5 |    6.1   -6.2    3.0       3     -3      2     .07
       MIT  |   5 |    8.7   -2.1   18.2       3     -7    -12    -.16
       NGS  |   5 |     .1    1.2    7.2     -21     19      2    -.10
       SIO  |   5 |    3.4    2.0   24.0      59    -98     18    -.36

       COD  |   6 |     .4     .2    -.0      -2      3      6    -.18
       EMR  |   6 |    5.7   -4.4   19.4     -62    -13    -35     .32
       ESA  |   6 |    -.8     .2    -.3     -30      5     16    -.24
       GFZ  |   6 |     .3    -.4    -.2     -16    -11      6    -.02
       GRG  |   6 |    1.0     .1   -1.2       9     -9    -42    -.06
       JPL  |   6 |     .5   -1.7   11.7      -6      7    -12     .11
       MIT  |   6 |    7.2    -.9   15.1      12      3     -8    -.10
       NGS  |   6 |    1.1    1.3   11.5       3     -8      7     .03
       SIO  |   6 |     .7    2.9   16.8      74    -37     31    -.35


10. As inidicated in the previous remarks, the IGS final orbits are aligned to the
    IGS reference frame by pre-aligning each AC orbit with the 3 corresponding
    SINEX rotations. This approach began 27-Feb-2000 (GPS Week 1051-0; MJD 51601).
    Starting sometime prior to 19-Aug-2012 (GPS Week 1702; MJD=56158), the orbit
    combination procedures used an incorrect sign convention to apply the SINEX
    RX and RY values to the AC orbits.
    
    Also starting 27-Feb-2000 (GPS  Week 1051-0; MJD 51601), the AC orbits were
    pre-aligned using rotations derived from differences between AC and IGS
    combined x and y polar motion. These ERP rotations were intended to
    approximate day-to-day variations of the AC orbital frames when only weekly
    averaged AC TRF rotations were available (For more details, see IGSMAIL
    #2750). With the change to daily SINEX integrations starting 19-Aug-2012, the
    ERP rotations are no longer needed/applied.

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        https://files.igs.org/pub/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:
        https://files.igs.org/pub/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; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        https://files.igs.org/pub/station/general/igs14.atx


ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    

Most combination statistics are with respect to the combined orbits and
consist of seven 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 1.2191.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2191.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 2.2191.[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 3.2191.[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 part, 
Table 5, is similar to Table 4 and contains daily precise navigation
statistics (Tables 5.2191.0-6). The sixth part, Table 6, is a weekly
summary of daily ERP combination statistics. The seventh part, Table 7,
contains the daily ERP statistics. But this is not the IGS official ERP
combination products (which come from the accompanying SINEX combination)
but provided to check combination consistency, etc.

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 2191 summary.                       (Jan 02, 2022 - Jan 08, 2022)

Table 1.2191.a   GPS week: 2191   MJD: 59581.000-59587.000

         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  675|    0     0     1     8     0     6   .05    7    7 |    -431    -243      5    116
        |    0     0     1    13    11    15   .03           |     181     308
emr   80|   -1     0     5    -3   -19    -9   .18   14   14 |  202912     562     16     94
        |    2     1     1    20     9    11   .03           |     774     711
esa  149|    0     0     0   -12    -8     4  -.00    8    7 |    -452    -221      7    100
        |    0     0     0    12    13    14   .01           |     323     406
gfz  233|    0     1     0   -11   -14     3   .20   11   10 |      42     -47     12    201
        |    1     0     1    12    12    14   .02           |     200     256
grg  112|    0    -4    -5    -5     1     0  -.12   11   10 |     -75      63      9    144
        |    0     0     4    12    14    12   .04           |     273     452
igr  n/a|    0     0    -2     0     5    -9   .08    5    4 |    -685     710     11    108
        |    0     0     0     8    11    12   .02           |    1183     726
jpl   80|    0     0     4   -17    -7   -12   .16   10   10 |     464     559      8     98
        |    1     1     2    12    12    17   .04           |     682     940
mit  371|    0     0     0    15     1    -6  -.19    8    7 |   -2079     701     29   1699
        |    0     0     1    15    15    27   .02           |    1284     750
ngs  208|    0     0    -2   -21    12    -8   .02   10    9 |    -401    -222    743   1632
        |    0     0     3    12    20    11   .02           |     204     264
sio  403|    0     0    -4    47    51    26  -.19   11   10 |     ---     ---    ---    ---
        |    0     0     1    52    28    31   .02           |     ---     ---


Table 1.2191.b   GPS week : 2191   MJD: 59581.000-59587.000   

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



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
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2191.0   GPS week: 2191   Day: 0   MJD: 59581.000                            

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  684|    0     0     0    -1   -10   -13   .01    8    8 |    -727      69      6     95
emr   80|   -3     0     3    17   -33     0   .13   14   14 |  201945    -128     19     79
esa  150|    1     0     0    -2   -18     0  -.02    7    7 |    -605    -386      8     81
gfz  229|    0     0     0   -15   -24     8   .16   11   10 |    -214    -135     13    170
grg  113|    1    -3    -1     6     4   -15  -.10   12   11 |    -141    -393      8    129
igr  n/a|    0     0    -1     7    -1    -3   .10    5    5 |   -2246     131     12     89
jpl   80|    0     0     4     3   -19   -12   .17   10   10 |      31     -58     10     88
mit  371|    0     0     0    13     3    -1  -.18   10    8 |   -3031     144     29   1391
ngs  204|   -1     0    -2    -6    45    -1  -.00    9    9 |    -745     107    956   2034
sio  375|    1     0    -7    -7    78    70  -.14   13   12 |     ---     ---    ---    ---

Table 2.2191.1   GPS week: 2191   Day: 1   MJD: 59582.000                            

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  682|    0     0     2    27     7     5   .02    8    7 |    -302    -439      6    129
emr   80|    0    -1     4     0   -28   -28   .18   14   14 |  202199     963     19    112
esa  147|    0     0    -1   -29   -28   -23   .00    7    7 |    -504     -89      7    123
gfz  238|   -1     1     0   -32   -12   -27   .20   10    9 |      43     -73     12    595
grg  111|    0    -4     1     3    24    -8  -.13   12   12 |    -225     543     12    158
igr  n/a|   -1     1    -2    -8    -1   -32   .08    4    4 |   -1846    1126     11    138
jpl   80|    2     0     5   -25   -13    -7   .16    9   10 |     385     291      9     94
mit  371|    0     0     0    39    -6    35  -.20    8    9 |   -3759    1198     27   1700
ngs  208|    0     1    -5   -18    27   -19   .02   10    9 |    -374    -226    649   1410
sio  412|    0     0    -5    46    55    53  -.19   10    9 |     ---     ---    ---    ---

Table 2.2191.2   GPS week: 2191   Day: 2   MJD: 59583.000                            

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  677|    0     0     2    14    -5    -4   .03    6    6 |    -224    -734      6     93
emr   80|   -2    -2     4    13   -10   -17   .16   14   14 |  202902     318     18     82
esa  150|    1     0     0    -5    14     7   .01    7    7 |    -388     -33      7     74
gfz  235|    0     2     0     0    -6    12   .20   12   10 |     161    -143     13    101
grg  115|    0    -4    -6    -7    11    -1  -.08   13   11 |     257    -154     10    143
igr  n/a|    0     0    -2     4    16   -19   .11    4    4 |    -941     556     12     94
jpl   80|    1    -2     4   -11     4   -46   .16   10   10 |     296     200      9     96
mit  371|    0     1     0     8     2    21  -.19    8    8 |   -2780     600     26   1564
ngs  209|   -1     1    -2   -15    16    10   .03   10    9 |    -104    -635    523   1512
sio  411|    0     0    -4     7     0    21  -.21   10    9 |     ---     ---    ---    ---

Table 2.2191.3   GPS week: 2191   Day: 3   MJD: 59584.000                            

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  674|    0     1     3    18   -15    16   .06    7    7 |    -416    -302      6    100
emr   80|   -2     0     5    13    -7     8   .21   14   14 |  203262    -591     17     91
esa  150|    0     0     0     5    -5    13  -.00    8    8 |     203   -1021      7     76
gfz  234|    0     2    -2   -13   -19    17   .24   12   11 |     389    -425     14     95
grg  114|    1    -4    -6     6    -8    -5  -.19   11   10 |     252    -449      9    128
igr  n/a|    0     0    -1    11    13     2   .07    4    4 |    -272    -547     12    103
jpl   80|    0     0     5   -18     7   -10   .15    9    9 |     485    -807      8    117
mit  371|    0     0     2     5    34    -9  -.19    9    7 |   -2123    -666     30   1777
ngs  209|    0     0    -8   -27   -17    -2   .04   12   10 |    -296    -381    743   1591
sio  419|    0     0    -3    -1    51   -27  -.17   12   11 |     ---     ---    ---    ---

Table 2.2191.4   GPS week: 2191   Day: 4   MJD: 59585.000                            

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  670|    0     0     2    12     4    -3   .09    7    7 |    -361    -239      5    128
emr   80|   -2     0     3   -25   -16    -6   .19   13   13 |  202505    1271     15    119
esa  150|    0     0     0   -20    -7    22   .00    8    8 |    -690     105      8    120
gfz  234|    0     1     0    -5     9     2   .19   11   11 |    -161     387     12    121
grg  110|    1    -3    -8   -18    -8     8  -.13   11    9 |    -517     751     10    148
igr  n/a|   -1     1    -2    -8    19    -8   .07    4    4 |    -933    1623     12    117
jpl   80|   -1     0     4   -35     0    12   .15   10   10 |    -539    1998      8    102
mit  371|    0     0     1    35   -10   -19  -.20    8    7 |   -2071    1517     28   1872
ngs  202|    0     0    -1   -43    13   -23  -.00    9    9 |    -357    -237    886   1847
sio  399|    0     0    -3    93    41    12  -.19   11    9 |     ---     ---    ---    ---

Table 2.2191.5   GPS week: 2191   Day: 5   MJD: 59586.000                            

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  672|    0     0     1    -9     6    18   .10    7    6 |    -630     194      5    128
emr   80|    0     0     5   -11   -16    -5   .22   13   13 |  203374     928     13     90
esa  150|    0     0     0   -13    -6     0   .00    9    8 |    -782     176      8    111
gfz  231|   -2     2     1     4   -15     3   .22   12   11 |      61    -108     13    139
grg  111|    1    -4    -6    -1     4     5  -.12   10    9 |     -12      13      9    158
igr  n/a|   -1     1    -1    -6     0    -4   .08    5    4 |     286    1033     11    120
jpl   80|   -1     0     1   -11    -5    -4   .09   11   11 |     993     921      9     86
mit  371|    1     0     0     0     0   -28  -.17    8    6 |    -348    1158     32   1925
ngs  216|    0     0     0   -12    -5    -6   .03   11    9 |    -573     110    604   1470
sio  402|    1     0    -4    63    46    18  -.21   11   10 |     ---     ---    ---    ---

Table 2.2191.6   GPS week: 2191   Day: 6   MJD: 59587.000                            

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  671|    0     0     0    -1    19    28   .04    8    6 |    -361    -255      6    141
emr   80|    3    -1     9   -31   -24   -15   .19   14   14 |  204198    1176     12     88
esa  150|    0     0     1   -21    -8    12   .01    8    7 |    -404    -304      8    115
gfz  230|   -1     1     0   -15   -30     5   .19   10   10 |      16     162     11    192
grg  116|    0    -3   -11   -24   -16    22  -.09   11    9 |    -142     136      9    144
igr  n/a|   -1     0    -1    -3    -9     2   .08    5    4 |    1154    1054     12     98
jpl   80|   -1    -1     8   -24   -26   -17   .22   10   10 |    1597    1368      9    107
mit  371|    0     0    -1     3   -12   -44  -.22    8    6 |    -443     957     34   1670
ngs  209|    0     0     0   -24    10   -15   .00   10    9 |    -360    -297    846   1566
sio  409|    1     0    -4   131    88    35  -.21   10    8 |     ---     ---    ---    ---

       
       
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 3.2191.0   GPS week: 2191   Day: 0   MJD: 59581.000                            

        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  |    6   11    7   11   10    3   10    5   10   10    3 |    32   35   34   34   29   34   33   31   33   37    32
   2  |    6   11    4   10   10    4    7    6    5   13    2 |    33   33   37   42   35   36   34   32   37   39    35
   3E |   11   12    9   10   14    4   10    8   13   10    3 |    53   38   55   54   54   53   53   55   53   58    53
   4M |    7   11    5    8    9    6   11    7   12   11    3 |    80   81   80   80   82   83   78   81   84   92    81
   5E |    8   11    8   10   14    7   10    8    8   10    3 |    39   45   44   45   44   44   45   42   47   44    43
   6  |    6   13    7    8    7    3    8    7    6    8    2 |    36   38   36   39   33   36   38   33   36   37    35
   7M |    5   10    7   11    8    4    7    5    7   10    2 |    46   50   46   52   42   48   52   46   48   49    47
   8  |    7   14    8   10    8    5   12   10   10   13    3 |    31   35   33   33   31   33   34   31   33   34    31
   9M |    9   10    8    8    8    6    8   10    9    9    3 |    49   52   47   51   46   48   52   48   50   52    48
  10E |    9   12    7   15   10    5   10    8    8   14    3 |    71   73   71   70   70   72   71   69   73   72    71
 X11  |    9   18   15   12   13   10    9    9   16  ---    4 |    60   58   55   60   63   57   60   56   62  ---    58
  12  |   10   21    8   10   22    7   10    9    9    9    4 |    47   52   44   49   51   45   48   46   49   49    47
  13  |    6   13    5    9    4    5   14   15    9   13    3 |    39   49   43   43   40   44   49   45   42   46    42
  14M |    9   16    7   12   13    5   13   13   12   16    4 |    77   75   76   81   79   78   76   75   81   83    77
  15  |    7   11    6    7    7    4    8   10    7   12    3 |    56   57   52   54   53   51   58   49   54   48    52
  16M |   11   26   12   16   27   10   10   27   11   27    6 |    46   55   43   43   54   43   44   48   49   48    45
  17  |    8   10    4   11   10    3    8    8    9   12    3 |    36   36   35   44   35   36   36   35   36   41    36
 X18  |    9   17   12   12   10    5    9    8   10  ---    4 |    60   63   58   65   64   58   60   59   57  ---    59
  19  |    7   17    5   11   10    3    7    7    8   13    3 |    36   36   40   43   35   39   38   36   39   41    37
  20E |   11    9    7   10   13    9    8   12    6   12    3 |    68   68   69   67   69   68   68   63   68   66    66
  21  |    6   13    6   11   11    4    9    5    7   13    3 |    31   32   30   35   28   32   32   29   33   38    30
 X22E |    8   12    7   13   25    7   10   10   10  ---    4 |    69   70   71   74   67   69   68   66   71  ---    69
  23E |    8   21    9   23   18    7   11   11   19   21    5 |    72   73   71   70   70   70   76   71   72   73    71
  24  |    7   14    8    9   10    4    9    8    8    9    3 |    32   43   38   39   31   36   41   31   34   39    35
  25  |    8   14    7    9   13    3   11   10    7    9    3 |    34   37   40   38   39   37   36   37   34   38    36
  26M |   10   13    9   10   14    6   10   11    8   13    4 |    47   47   49   46   49   47   46   53   45   56    48
  27  |    6   14    8   10    9    4   10   11   10   19    3 |    34   36   34   34   32   34   36   31   34   33    33
 X28  |    9   11    5   12   12    6    7    6   10  ---    3 |    47   46   48   48   43   48   47   45   46  ---    45
  29  |   10   21    7    7   14    4    7    9   13    9    3 |    39   42   39   39   38   40   41   38   43   39    39
  30  |    6   10    4    9    7    3    9    6    6   14    2 |    31   40   34   35   29   35   38   31   33   39    33
  31M |    7    9    6    8    4    4    8    8    9   12    3 |    42   47   45   43   43   43   48   43   39   43    43
  32M |    4   10    7    8    7    4   10    8    5    9    2 |    36   43   40   39   35   41   43   38   38   43    38
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    7   11   12    5   10   10    9   13      |T   47   49   48   49   47   48   49   46   48   49    47
 WRMS |    8   14    7   10   11    5   10    8    9   12      |NE  39   42   40   43   39   40   42   38   40   39    39
 MEDI |    8   12    7   10   10    4    9    8    9   12      |MD  42   46   44   44   43   44   46   45   45   43    43

Table 3.2191.1   GPS week: 2191   Day: 1   MJD: 59582.000                            

        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   10    7    8    9    3   10    7    7    7    2 |    27   29   29   28   24   28   29   22   27   26    26
   2  |    7   15    5   12   10    3    7    6    6    7    3 |    27   26   27   31   24   27   25   26   26   26    25
   3E |   13    9    8   10   14    4    9   10    9   12    3 |    35   24   32   34   29   31   32   28   31   34    30
   4  |    6   10    5    7   10    5   11    6    8   11    2 |    54   54   55   55   53   55   54   55   56   59    54
   5E |    9   12    9   10   14    6    9    9    8   10    3 |    32   29   31   31   33   29   28   28   29   32    28
   6  |    5   11    8    8    7    4    7    5    7    7    2 |    33   35   34   33   29   33   35   30   31   32    31
   7  |    5   10    5    6    8    4    6    6    9    5    2 |    22   25   24   28   22   24   26   23   23   26    23
   8  |    6    9    7    9   11    4    9    9    8    9    3 |    28   31   33   31   30   32   31   27   27   31    29
   9  |    5    9    9    6    9    4   10    7    8    6    2 |    90   88   88   88   90   89   88   87   89   86    88
  10E |   11   10    8    9   14    5    9    8    9   12    3 |    35   36   31   34   30   32   32   32   33   34    31
 X11  |   10   16   15   14   15    6   11    9   14  ---    4 |    42   47   44   42   44   43   43   41   42  ---    42
  12  |    9   25    8   11   22    5   12    6    8   13    4 |    27   31   24   29   27   25   28   24   26   27    24
  13  |    5   13    6   10    6    4   13    8    7   10    3 |    33   40   35   34   33   35   39   33   34   35    33
  14  |   10   17   10   16   12    6   11   15   16   12    4 |    96   96   94  101   91   96   95   91   98   96    94
  15  |    6    9    6    8    9    4    9    7    7    8    2 |    39   42   36   38   38   38   39   36   37   39    37
  16  |    8   25   11   11   16    6   10   12    9   15    4 |    29   36   27   37   33   29   28   31   34   34    30
  17  |    8    9    5    7   11    3    8    8    8    7    2 |    27   25   21   29   24   24   28   23   24   27    24
 X18  |   10   16   12    9   14    6   12    8   11  ---    4 |    37   41   37   37   37   36   39   38   34  ---    36
  19  |    8   15    5   10   10    4    8    6    9    8    3 |    30   32   29   33   27   31   31   27   30   31    28
  20E |    6   12    9   10   20    5    8    5   27   13    4 |    67   71   72   71   71   71   68   66   73   67    68
  21  |   10   13    6    7   13    3    8    6    9    6    3 |    29   29   28   32   22   29   30   24   30   28    27
 X22E |   10   10    7    7   24    5    9   11   12  ---    4 |    66   69   67   68   72   68   68   66   67  ---    67
  23E |   10   22    9   20   17    6   13   12   18   17    5 |    30   35   34   35   35   32   34   32   35   35    31
  24  |    7   10    6    8    8    3   10    6   10   13    3 |    25   35   31   32   25   29   34   24   27   28    27
  25  |    7   11    6    9   12    3    9    7   11    9    3 |    27   30   30   30   30   28   30   25   28   27    27
  26  |   12   13    9   10   11    7    9   13    9   16    4 |    29   33   34   31   33   30   31   30   29   36    30
  27  |    6    9    8    7   13    3    9    7    7    9    3 |    31   34   34   35   31   33   31   27   28   28    30
 X28  |    8   12    6   16    9    5   11    6   10  ---    3 |    46   50   50   51   47   49   50   46   49  ---    48
  29  |    9   19    6    7   16    5    9    7    9    8    3 |    28   32   29   29   31   30   31   29   30   28    28
  30  |    5   10    5    6    6    3    9    7    7    6    2 |    25   34   29   28   25   28   33   26   28   33    27
  31  |    6   10    6    7    6    4    7   10    8    7    2 |    40   45   42   40   38   41   43   38   40   41    40
  32  |    5   10    7    9    9    2    9    5   11    7    2 |    18   25   18   19   16   19   24   15   18   20    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    7   10   12    4    9    8   10   10      |T   37   40   38   39   37   38   39   35   37   37    36
 WRMS |    7   14    7    9   12    4   10    9    9    9      |NE  31   34   32   33   30   32   33   29   31   29    30
 MEDI |    7   11    7    9   11    4    9    7    9    9      |MD  30   34   32   33   31   31   32   29   30   32    30

Table 3.2191.2   GPS week: 2191   Day: 2   MJD: 59583.000                            

        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  |    5   10    8    7    8    5    8    5   11    9    2 |    35   37   38   34   35   36   38   33   32   36    34
   2  |    6   15    6   14    9    4    7    5    8    9    3 |    37   34   38   42   35   36   36   34   38   35    35
   3E |    9   11    8   22   14    5   10    9   12   11    4 |    26   29   28   27   25   26   27   26   25   28    25
   4  |    5   10    4    9   10    5   11    7   11    7    2 |    49   48   49   50   52   49   50   50   51   52    50
   5E |    5   11    9   12   32    5   10    8   11    7    4 |    40   39   40   42   43   39   41   38   42   39    39
   6  |    4   12    7    8    6    4    7    8    7    9    2 |    36   38   39   41   35   37   39   35   37   37    36
   7  |    5   11    7    7    8    3    5    8   10    5    2 |    45   45   44   46   42   44   45   42   44   43    43
   8  |    6    9    8   10    8    4   10   10   11    7    3 |    34   38   36   32   35   35   36   34   35   34    34
   9  |    6   10    8    8    7    5    6    6    8    8    2 |   187  187  186  188  185  184  187  185  184  184   186
 X10E |    7  ---    8    9   19    5   11    7    9    9    3 |    33  ---   34   38   30   33   35   33   35   34    33
 X11  |   10   16   16   15   12   10   11    9   15  ---    4 |    45   46   41   45   45   43   46   44   49  ---    44
  12  |    9   27    7   17   20    7   11    6   11   11    4 |    47   47   41   44   44   41   46   43   44   48    43
  13  |    4   15    7   12    8    3   12   10    8   11    3 |    45   51   47   45   46   46   53   45   47   48    46
  14  |    8   17   11   16   12    4   13   12   16    8    4 |   189  190  190  196  190  191  190  190  191  191   190
  15  |    5    7    6    7    8    4   10    8    6   10    2 |    51   52   49   52   49   49   55   49   52   49    50
  16  |    6   27    9   11   14    6   10   12    8   12    4 |    42   49   40   44   43   41   46   45   43   45    42
  17  |    6   11    5    8    9    6    9    7    8    9    2 |    31   32   31   34   31   33   32   30   30   34    30
 X18  |    8   14   13    8   12    5   12    8    8  ---    4 |    46   47   43   44   47   43   46   47   42  ---    44
  19  |    7   17    6   11    9    5   10    7   11    7    3 |    37   35   38   42   36   39   37   36   38   38    36
  20E |    4   13    9   13   21    3    9    8   12   15    4 |    60   60   60   62   63   59   60   59   59   61    59
  21  |    6   12    5    7   23    4    9    5   11    8    3 |    35   39   37   36   43   37   39   36   35   37    36
 X22E |    7   11    7   15   18    8   10   12   18  ---    4 |    90   91   90   89   88   88   91   89   87  ---    89
  23E |    9   22   10   25   20    7   12   13   16   17    5 |    31   33   35   40   34   31   34   29   31   30    31
  24  |    5   13    7    7    9    3   13    5    9   10    3 |    34   42   35   35   32   35   45   34   36   37    35
  25  |    6   10    7    7   11    4   10    7    6    7    2 |    35   35   36   34   34   33   37   33   30   34    33
  26  |    5   17    8   11    9    5   11   10    6   13    3 |    45   47   44   42   43   44   48   45   40   46    43
  27  |    7    9    7    7    8    3    9    9    7    9    3 |    41   43   43   38   42   41   44   41   40   41    40
 X28  |    8   11    5   18   10    5   12    8    8  ---    3 |    48   48   47   53   47   47   51   48   48  ---    47
  29  |    5   18    7    7   12    4    9    8    8   11    3 |    35   35   32   34   34   35   36   33   34   34    33
  30  |    5   11    5    8    9    2    9    8    7    8    2 |    31   38   33   30   31   33   38   30   31   34    32
  31  |    4   13    6    8    5    4   10    6    8    7    2 |    62   67   61   60   61   62   68   61   62   63    62
  32  |    5    9    6   10    7    3    9    7    5    9    2 |    29   33   28   30   26   29   32   25   28   25    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   14    7   12   13    4   10    8   10   10      |T   50   53   51   52   50   50   53   50   50   50    50
 WRMS |    6   14    7   10   11    4   10    8    9    9      |NE  39   40   39   39   38   38   41   38   38   38    38
 MEDI |    6   12    7    9    9    4   10    8    8    9      |MD  40   43   40   42   42   39   44   38   40   37    39

Table 3.2191.3   GPS week: 2191   Day: 3   MJD: 59584.000                            

        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  |    6   10    8    8    7    3    7    5   17   11    3 |    42   44   45   43   41   43   44   42   40   40    41
   2  |    6   15    6   12    9    2    7    7   10    8    3 |    43   43   45   48   42   44   41   43   47   41    42
   3E |    9   13    8   18   11    5    9   11    9   12    4 |    46   36   46   50   44   45   45   46   46   43    45
   4  |    5   11    5    9   10    3   10    7   10   10    3 |    55   56   55   58   58   55   55   55   60   53    55
   5E |   10   13    9    7   13    6    7   13   19   14    4 |    48   50   47   47   45   47   47   47   53   47    46
   6  |    6   11    8    9    7    3    6    6    8   11    2 |    47   52   50   51   46   49   48   47   49   47    47
   7  |    4   13    6    9    7    3    7    7    8   10    2 |    46   48   46   46   41   44   46   44   43   40    44
   8  |    7    8    8   10    8    5    9    9   13   11    3 |    42   46   43   43   43   43   42   42   43   42    42
   9  |    9    9    8    7    9    3    8    8    9   11    3 |   339  341  339  342  343  341  340  338  339  333   339
  10E |   10   11   10   21   19    6   10    7   10    9    4 |    55   59   54   54   53   54   56   55   54   55    54
 X11  |   10   18   17   14   14    7   10   11   12  ---    5 |    48   50   46   49   50   46   47   51   49  ---    47
  12  |   10   22    8   14   20    6    8    7   13   12    4 |    41   44   38   41   44   40   41   39   40   40    39
  13  |    7   13    6   12    6    5   12    7    9   14    3 |    41   48   43   40   43   42   47   40   44   40    41
  14  |    8   16   11   16   13    6   12    9   17   14    4 |   210  211  210  217  212  212  212  208  212  212   211
  15  |    7    8    5    9    8    4    6    8    6   12    2 |    53   54   51   50   48   50   55   50   48   49    50
  16  |    7   24    9    8   15    7    9   12   11   15    4 |    42   48   41   44   40   42   44   48   44   47    43
  17  |    8   13    7   12   11    4    7    5    9   11    3 |    46   49   46   50   46   46   46   46   48   43    45
 X18  |    9   15   13   10   14    6    9    9    7  ---    4 |    53   58   49   56   56   53   55   55   55  ---    53
  19  |    8   17    5   14   12    3    9    6   12    8    3 |    43   46   47   51   45   46   44   45   47   44    44
  20E |    6   13    8   10   10    3    7    6   12   12    3 |    42   46   44   44   43   43   40   40   43   40    41
  21  |    6   10    7    9    9    4    7    6   13    8    3 |    42   46   44   45   44   42   45   42   40   42    42
 X22E |   10   12    8   16   13    7    8   10   17  ---    4 |    40   38   39   46   39   38   39   36   39  ---    37
  23E |    8   21   11   22   16    7   12   17   23   20    5 |    57   56   56   57   56   55   54   57   54   55    54
  24  |    6   11    8    9   10    4   11    8    9   13    3 |    41   50   42   47   38   45   50   42   43   40    42
  25  |    8   11    8    6    9    3    8    9   10    5    3 |    43   46   43   44   44   43   46   41   41   40    42
  26  |    7   12    8    8    9    5    8   12    7   14    3 |    44   45   42   43   41   43   45   46   40   47    43
  27  |    8   10    7   19   10    5    9    8    8   13    3 |    43   45   44   45   42   43   43   42   42   43    42
 X28  |    7   15    7   16   10    6    9   10   16  ---    4 |    53   54   57   56   54   53   54   55   54  ---    53
  29  |    7   20    8   10   12    5    8    8   10   13    3 |    43   47   42   46   45   44   44   44   46   43    43
  30  |    6   11    5    7    8    2    9    8    8   12    3 |    45   51   48   47   45   47   49   45   45   44    46
  31  |    4   10    7    8    6    3    8    7    9    8    2 |    46   49   46   46   42   45   48   45   44   45    45
  32  |    5    9    6    7    7    3    7    6    9    9    2 |    50   52   48   49   45   48   51   48   46   47    48
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   14    8   12   11    4    9    9   12   12      |T   60   62   60   62   59   60   61   60   60   60    59
 WRMS |    7   14    8   11   10    4    9    7   10   11      |NE  44   48   45   47   45   45   46   45   45   42    44
 MEDI |    7   12    8   10   10    4    8    8   10   11      |MD  45   48   46   47   44   45   46   45   46   43    44

Table 3.2191.4   GPS week: 2191   Day: 4   MJD: 59585.000                            

        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  |    5    9    8    6    6    3   10    5    9    9    2 |    24   26   25   22   21   23   26   20   21   21    22
   2  |    8   12    6   10    8    3    8    5    9    8    2 |    22   22   23   27   20   22   19   19   23   22    20
   3E |    7   12    9   20    9    6   12    7   11   13    4 |    44   42   43   41   42   41   40   41   44   38    41
   4  |    5   10    7    8    8    4   11    7    6    6    2 |    54   53   52   53   55   52   51   50   54   52    52
   5E |    7   11    8    8   20    5   11   10   10   13    3 |    34   34   34   34   39   35   34   35   36   36    33
   6  |    6   11    8   10    6    3    7    6    6   10    2 |    27   28   29   29   25   28   29   24   25   25    26
   7  |    6   12    6    8    7    4    7    6   10    8    2 |    29   32   28   31   26   28   33   27   30   28    28
   8  |    6    8    8    9    8    4    8    9    9   10    3 |    21   22   23   20   20   20   21   19   22   18    19
   9  |    6   13    8    6    6    3    8    7    7    7    2 |   418  418  419  421  420  419  422  417  418  414   419
  10E |   10   11   10   23   19    6   12    8   14   10    4 |    29   30   27   25   27   27   30   27   30   26    26
 X11  |   10   16   16   13   13    7   11    7   16  ---    5 |    29   34   28   29   33   29   31   29   34  ---    29
  12  |    8   22    8    7   20    5   11    7    8   10    4 |    28   29   21   27   30   22   28   22   24   23    23
  13  |    5   12    7    8    7    3   12    6   12   10    3 |    25   33   24   24   26   26   33   25   28   26    25
  14  |    8   18   11   11   12    6   11   10   15   14    4 |   294  298  297  299  294  297  295  294  295  292   295
  15  |    6    7    6    5   10    4    9    7    8    9    2 |    35   38   33   34   32   32   37   32   36   33    34
  16  |    7   25    9    9   14    6   10   11    9   13    4 |    28   35   26   28   26   26   29   34   34   33    29
  17  |    8   13    8    9    9    4    7    7    9    7    3 |    32   32   29   32   29   29   31   27   32   29    29
 X18  |    9   15   13    9   11    6   11   10    9  ---    4 |    37   41   36   39   39   36   40   41   38  ---    38
  19  |    8   17    6   11    8    2    8    5    9    9    3 |    20   21   20   25   17   20   21   18   22   22    19
  20E |    5   15    9   10   10    6   10    8    5   14    3 |    33   34   34   34   32   33   35   35   34   37    33
  21  |    7   10    6    8    9    5    6    7   10    8    2 |    19   21   20   22   22   21   22   19   24   21    20
 X22E |    6    7    9   13    9    6    8    6    8  ---    3 |    47   49   48   52   46   48   50   46   51  ---    48
  23E |   11   17   13   22   12    6   14   15   19   24    5 |    42   42   42   38   41   39   42   45   39   46    40
  24  |    4   10    6    9    9    3   12    6    7   14    3 |    17   29   18   25   14   20   30   13   16   19    17
  25  |    8   10   10    7   10    3    8    6    6    7    2 |    20   22   22   20   21   20   23   19   18   18    19
  26  |    7   11    9    7    8    5    9   11    8   13    3 |    26   29   28   27   26   26   30   30   26   29    27
  27  |    7   10    8    7    8    4   10    9    7   11    3 |    25   26   25   26   22   25   24   22   25   21    23
 X28  |    8   12    7   16   10    4    9   11    8  ---    4 |    33   35   33   36   31   33   35   34   33  ---    32
  29  |    7   18    7    9   10    6    7    6    5   10    3 |    22   19   17   23   21   21   19   18   22   17    19
  30  |    4   10    4   11    7    3   10    8    6   11    2 |    16   27   18   20   14   18   26   13   16   16    16
  31  |    6    8    6    7    6    4    8    6    7    9    2 |    46   45   44   47   41   44   47   44   42   46    44
  32  |    6    8    6    7    7    3    7    4    6    8    2 |    21   26   21   22   20   20   23   15   20   17    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   13    8   11   11    4   10    8    9   11      |T   49   52   49   51   49   49   51   48   50   50    48
 WRMS |    7   13    8   11    9    4   10    7    9    9      |NE  25   28   24   26   24   24   27   23   25   22    23
 MEDI |    7   11    8    9    9    4    9    7    8   10      |MD  28   32   28   28   26   27   30   27   30   26    27

Table 3.2191.5   GPS week: 2191   Day: 5   MJD: 59586.000                            

        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  |    5    9    8    8    7    5    7    4    7    8    2 |    22   24   25   23   21   24   25   18   20   18    21
   2  |    6   11    6    7   10    2    6    4    9    7    2 |    23   23   25   28   20   24   22   23   25   23    22
   3E |    8   13    9   33   12    6   20    8   19   11    5 |    45   38   46   53   46   46   49   46   47   47    45
   4  |    5   11    6    6    9    5   10    6    8    9    2 |    54   52   55   59   57   55   57   57   56   60    56
   5E |    6   11   11   15   13    5    7   10   18   14    4 |    33   33   34   29   30   30   32   39   40   39    33
   6  |    5    9    7   11    7    4    7    5    8   11    2 |    25   30   27   27   24   27   29   22   24   24    24
   7  |    5   11    6    8    7    4    7    5    8    5    2 |    26   30   26   30   24   27   28   24   27   25    25
   8  |    7    8    7   11    7    4   10    9    9   11    3 |    21   21   23   20   22   20   18   18   22   18    19
   9  |    4    7    8    7    6    3    7    6    7    7    2 |   502  504  501  504  502  503  503  499  501  493   501
  10E |   11   13   10   20   22    6   15   11   12   11    5 |    55   57   56   58   50   55   54   53   56   50    53
 X11  |    7   18   17   11   12    7   10    6   16  ---    4 |    42   45   43   42   43   40   43   40   40  ---    41
  12  |    8   22    7    9   17    3    9    7    9    8    3 |    32   37   26   30   31   28   30   27   30   29    28
  13  |    5   12    8   11    6    3   11    5    8   16    3 |    20   31   18   19   19   21   29   20   22   22    20
  14  |    9   18   12   15   12    6   13    8   13   11    4 |   379  382  383  390  381  382  382  381  380  379   382
  15  |    5    7   12    9   10    3    9    6    9   13    3 |    32   34   37   30   30   31   34   29   34   30    31
  16  |    7   29    7   11   12    7   10   11   10   12    4 |    29   41   27   30   29   27   30   34   35   31    30
  17  |    7   12    6    8    9    3    9    6    6    7    2 |    32   33   29   37   32   32   32   31   34   33    31
 X18  |    9   13   16   11   10    7   10    8   10  ---    4 |    47   51   49   49   51   47   48   49   47  ---    48
  19  |    7   16    5    6    9    4    8    5    8    7    2 |    25   28   26   28   23   26   26   25   27   28    25
  20E |    5   14    7    9    9    4    9    6   11   11    3 |    43   42   41   42   41   42   42   40   45   43    41
  21  |    7    9    7    9    9    5    8    7    9    6    2 |    19   20   20   24   21   21   21   16   19   18    18
 X22E |    8   10    9   10    7    6    9    6   10  ---    3 |    60   63   61   61   60   61   61   58   60  ---    60
  23E |   12   18   20   17   13    8   21   20   26   26    6 |    69   69   68   69   70   68   66   70   78   75    68
  24  |    4   13    6    7    6    3   14    5    5   12    2 |    18   32   21   22   16   23   32   18   20   20    20
  25  |    6   10    9    5    9    2    6    4    9    6    2 |    23   25   27   27   25   25   26   24   24   24    24
  26  |    8   15   10    9    7    7   10   10    7   10    3 |    26   29   27   32   26   26   28   29   26   27    26
  27  |    8    8    9   10    7    5    9    9    6   14    3 |    21   22   22   26   19   20   20   18   22   18    19
 X28  |    7   13    6   15    9    6    8    8    8  ---    3 |    25   30   29   32   24   29   29   28   31  ---    27
  29  |    7   16    8    7   11    6   10    6    9   13    3 |    28   27   26   29   26   26   22   25   27   29    26
  30  |    5   11    5    8    5    3   11    7    7    8    2 |    23   32   24   26   22   24   31   22   22   23    23
  31  |    5   10    7   12    4    5   10    5    6    9    2 |    63   64   61   64   61   62   63   63   64   62    62
  32  |    4    8    7   10    7    3    8    5    9    9    2 |    21   26   23   26   20   22   24   18   23   21    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   13    9   12   10    5   11    8   11   11      |T   58   61   59   61   58   59   60   58   60   61    58
 WRMS |    6   13    8   11    9    4   11    6    9   10      |NE  26   30   27   28   26   27   28   25   27   23    25
 MEDI |    7   11    7    9    9    5    9    6    9   10      |MD  28   32   27   30   26   27   30   28   30   28    27

Table 3.2191.6   GPS week: 2191   Day: 6   MJD: 59587.000                            

        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  |    6    9    8    8    7    4    9    4    9    7    2 |    28   30   30   27   29   28   30   26   28   29    27
   2  |    7   13    6   11    8    3    9    6    9    8    3 |    27   29   31   34   28   30   27   29   30   27    28
  X3E |   15  ---    9   25   15    8   14   13   18   14    6 |    44  ---   42   43   44   40   48   45   39   45    41
   4  |    6   12    5    6   10    6   10    5    6   14    3 |    79   76   79   80   82   81   80   80   80   86    80
   5E |    9   12    9   11   13    4    9    8   10    9    3 |    54   52   52   53   55   53   56   55   53   56    53
   6  |    6   12    8    9    6    3    8    6    5    9    2 |    37   36   36   35   34   35   35   33   35   33    34
   7  |    4    9    6    8    8    4    7    6    8    7    2 |    39   43   38   42   34   37   43   37   38   37    38
   8  |    8   11    7   10    7    3   11    7   10    5    3 |    23   25   25   23   24   23   25   21   25   24    22
   9  |    7    9    9    8    7    3    8    7    5    8    2 |   617  617  617  619  619  617  616  614  615  606   616
  10E |   19   20   12   13   23    6   19   13   19   16    6 |    92   94   90   91   91   91   93   94   93   94    91
 X11  |   10   16   16   12   11    6   11    7   15  ---    4 |    61   64   61   61   64   59   63   62   64  ---    61
  12  |    8   24    8    8   18    5    8    8    7   11    4 |    35   42   30   33   34   30   36   31   33   32    32
  13  |    5   13    6    9    5    5   12    6   10   10    3 |    26   36   26   27   28   28   38   29   32   29    28
  14  |    8   18   11   13   11    5   12    9   18   11    4 |   485  489  487  499  488  489  489  487  483  487   488
  15  |    6    9    7    9   10    4    9    6    7   11    2 |    44   49   46   45   41   45   50   41   45   44    44
  16  |    4   26    7    9   12    7   10    9   12    6    3 |    30   41   27   32   32   27   31   34   36   33    31
  17  |    8   11    8    8    8    3   11    5   12    8    3 |    30   30   30   36   31   32   32   30   35   31    30
 X18  |   10   16   15   10    8    6   11   13    9  ---    4 |    64   68   64   68   67   64   67   65   65  ---    64
  19  |    8   13    6   11    9    3    9    5    9    6    3 |    25   24   29   31   24   27   27   24   26   27    25
  20E |    6   12    9   10   11    5    8    8   10   11    3 |    73   72   74   75   74   74   74   71   77   75    73
  21  |    8    9    5    8    9    5    7    9    8    8    2 |    23   25   23   26   24   23   24   22   25   25    22
 X22E |    4   14    9    8   11    7    8    5   15  ---    3 |    88   91   89   89   88   89   88   85   90  ---    88
  23E |   12   22   15   21   24   10   19   24   16   30    7 |    72   69   68   69   74   67   69   72   70   69    68
  24  |    6   15    6    7    8    3   12    7    9   10    3 |    18   34   22   25   16   22   34   15   22   18    20
  25  |    6   10    8    6   10    3    7    7    6    8    2 |    23   25   27   27   26   24   25   22   23   22    23
  26  |    7   14    9    8    7    6    8    8    6    7    3 |    30   33   31   31   30   29   33   35   29   33    31
  27  |    6   10    6    8    6    4   12    7    7    8    2 |    23   27   25   27   26   25   27   23   25   26    24
 X28  |   10   12    5   12    8    5    8    9   16  ---    3 |    33   34   33   36   32   35   35   33   37  ---    33
  29  |    6   17    8    6   11    3    9    6    6    9    3 |    30   31   29   31   31   30   31   29   31   28    29
  30  |    4   10    5    7    6    3   10    7    6    8    2 |    21   32   22   26   21   23   31   22   20   21    22
  31  |    4   10    5    6    5    4    7    4    5    4    2 |    85   88   87   87   85   86   88   85   86   87    86
  32  |    5   11    7    8    8    3    8    6    5    7    2 |    38   41   37   39   34   36   39   35   38   37    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   14    8   10   11    5   10    8   10   10      |T   74   78   75   77   75   74   77   74   75   77    74
 WRMS |    6   14    7   10    9    4   10    6    9    8      |NE  31   35   32   34   32   32   35   30   33   27    31
 MEDI |    6   12    8    8    8    4    9    7    9    8      |MD  35   41   33   36   34   35   36   34   36   33    33



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 4.2191   GPS week: 2191   MJD: 59581.0-59587.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |U    9     7    27 |U   15    19    57 |U   21    14    43 |
emr | emr 3044 |U   17    14    55 |U   22    29    74 |U   20    22    47 |
esa | esa 3072 |    12    10    43 |    16    19    69 |    25    20    57 |
gfz | gfz 3072 |U    9     9    33 |U   14    18    59 |U   20    15    47 |
grg | grg 3070 |U   10    15    34 |U   14    17    60 |U   20    17    55 |
igr | igr 3071 |     9     7    27 |    15    18    57 |    22    13    44 |
igs | igs 3066 |     9    10    26 |    16    18    63 |    20    17    44 |
jpl | jpl 3072 |    16    12    48 |U   17    21    66 |    22    23    63 |
mit | mit 3072 |U    7     7    20 |U   16    17    59 |U   18    17    37 |



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 5.2191.0   GPS week: 2191   Day: 0   MJD: 59581.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |  ----  ----  ---- |    10     6    24 |
emr | emr 3072 |  ----  ----  ---- |  ----  ----  ---- |    15    17    41 |
esa | esa 3072 |  ----  ----  ---- |  ----  ----  ---- |    15    14    45 |
gfz | gfz 3072 |  ----  ----  ---- |  ----  ----  ---- |     9     8    32 |
grg | grg 3071 |  ----  ----  ---- |  ----  ----  ---- |     6    11    26 |
igr | igr 3072 |  ----  ----  ---- |  ----  ----  ---- |    10     9    32 |
igs | igs 3072 |  ----  ----  ---- |  ----  ----  ---- |     9     8    29 |
jpl | jpl 3072 |  ----  ----  ---- |  ----  ----  ---- |    13    12    46 |
mit | mit 3072 |  ----  ----  ---- |  ----  ----  ---- |     8     8    25 |

Table 5.2191.1   GPS week: 2191   Day: 1   MJD: 59582.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     7    24 |    16    24    71 |    76    34   145 |
emr | emr 3072 |    17    16    52 |    21    31    78 |    51    38   107 |
esa | esa 3072 |    13    11    43 |    16    22    79 |    74    57   122 |
gfz | gfz 3072 |    10    10    38 |    16    24    65 |    58    39   137 |
grg | grg 3072 |     9    18    37 |    15    22    62 |    75    58   140 |
igr | igr 3072 |     9     6    27 |    15    23    66 |    81    32   125 |
igs | igs 3072 |     9     6    28 |    15    22    61 |    71    56   127 |
jpl | jpl 3072 |    17    12    44 |    18    21    74 |    63    74   192 |
mit | mit 3072 |     8     7    22 |    15    20    48 |    69    60   110 |

Table 5.2191.2   GPS week: 2191   Day: 2   MJD: 59583.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |    15    16    56 |    11     8    24 |
emr | emr 2976 |  ----  ----  ---- |    22    25    78 |    14    20    38 |
esa | esa 3072 |  ----  ----  ---- |    16    16    67 |    17    13    55 |
gfz | gfz 3072 |  ----  ----  ---- |    14    13    59 |    12     9    37 |
grg | grg 3072 |  ----  ----  ---- |    15    11    55 |    11     8    49 |
igr | igr 3072 |  ----  ----  ---- |    14    14    58 |    11     9    28 |
igs | igs 3072 |  ----  ----  ---- |    14    14    54 |    10     9    29 |
jpl | jpl 3072 |  ----  ----  ---- |    17    17    54 |    12    15    39 |
mit | mit 3072 |  ----  ----  ---- |    13    10    44 |     8     7    21 |

Table 5.2191.3   GPS week: 2191   Day: 3   MJD: 59584.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |    23    17    51 |    11    14    28 |
emr | emr 3072 |  ----  ----  ---- |    31    25    72 |    12    20    32 |
esa | esa 3072 |  ----  ----  ---- |    26    18    67 |    13    11    41 |
gfz | gfz 3072 |  ----  ----  ---- |    22    19    58 |    13    10    27 |
grg | grg 3071 |  ----  ----  ---- |    23    16    58 |    10    13    47 |
igr | igr 3072 |  ----  ----  ---- |    25    16    54 |     9    11    30 |
igs | igs 3072 |  ----  ----  ---- |    24    16    56 |     9    11    31 |
jpl | jpl 3072 |  ----  ----  ---- |    26    20    63 |    12    11    40 |
mit | mit 3072 |  ----  ----  ---- |    22    14    48 |    10    13    27 |

Table 5.2191.4   GPS week: 2191   Day: 4   MJD: 59585.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |    15    27    64 |    14    10    22 |
emr | emr 3072 |  ----  ----  ---- |    23    31    64 |    16    22    34 |
esa | esa 3072 |  ----  ----  ---- |    17    25    73 |    19    16    44 |
gfz | gfz 3072 |  ----  ----  ---- |    14    23    62 |    15    11    24 |
grg | grg 3072 |  ----  ----  ---- |    12    21    66 |    11     9    39 |
igr | igr 3072 |  ----  ----  ---- |    15    23    63 |    13    11    27 |
igs | igs 3072 |  ----  ----  ---- |    15    23    64 |    13    11    26 |
jpl | jpl 3072 |  ----  ----  ---- |    17    23    69 |    15    15    37 |
mit | mit 3072 |  ----  ----  ---- |    15    20    61 |    12    12    22 |

Table 5.2191.5   GPS week: 2191   Day: 5   MJD: 59586.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |  ----  ----  ---- |    10    16    43 |    13    10    25 |
emr | emr 3072 |  ----  ----  ---- |    18    29    66 |    16    16    39 |
esa | esa 3072 |  ----  ----  ---- |    11    16    56 |    19    13    45 |
gfz | gfz 3072 |  ----  ----  ---- |     7    12    47 |    18    10    27 |
grg | grg 3072 |  ----  ----  ---- |     8    14    54 |    13    11    43 |
igr | igr 3072 |  ----  ----  ---- |    10    15    44 |    14     8    28 |
igs | igs 3072 |  ----  ----  ---- |    10    15    44 |    13     9    29 |
jpl | jpl 3072 |  ----  ----  ---- |    14    21    54 |    18    15    39 |
mit | mit 3072 |  ----  ----  ---- |    15    21    50 |    11     9    25 |

Table 5.2191.6   GPS week: 2191   Day: 6   MJD: 59587.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        YELL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     8    30 |    10    15    55 |    15    14    31 |
emr | emr 2976 |    17    12    57 |    19    31    85 |    17    19    41 |
esa | esa 3072 |    11    10    43 |    10    18    73 |    19    19    50 |
gfz | gfz 3072 |     8     7    27 |    11    15    61 |    15    18    48 |
grg | grg 3066 |    11    12    32 |    10    18    65 |    12    10    41 |
igr | igr 3071 |     9     7    27 |     9    16    57 |    15    13    36 |
igs | igs 3032 |     9    13    24 |    17    18    98 |    13    13    37 |
jpl | jpl 3072 |    16    11    52 |    12    23    85 |    19    22    50 |
mit | mit 3072 |     7     8    19 |    18    18   104 |     9     8    31 |


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 6.2191   GPS week: 2191   MJD: 59581.500-59587.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       4      -4     -17     -15      2 |       5     26
            |      14      17      70      47      7 |       4
emr   uuuuu |      -3      15     -78      43      2 |      15     32
            |      42      23     111      71     13 |       5
esa   uuuuu |      -1       2     -27     -71      2 |      17     30
            |      12      10     112      41      2 |       4
gfz   uuxuu |       2      20      -9     -92      1 |      26     36
            |      22      17     230     138      6 |       4
grg   uuuuu |      10     -13     -91      19     -2 |      10     25
            |      36      14      36      70      4 |       4
igr   xxxxx |     -11      -7      21     -10      0 |       4     26
            |      11       6     107      35      6 |       4
irf   xxxxx |      -1      -6      49      -6     -5 |       4     27
            |      12      13      32      30      7 |       4
jpl   uuuuu |      -1      27     -40     -14     -2 |      13     31
            |      33      16      65      80     21 |       4
mit   uuuuu |      -8     -33     159      41     -3 |      29     39
            |      30      16      77      50     10 |       4
ngs   uuxuu |       6       6      13     133     -2 |      12     27
            |      62      37     207      86      4 |       4
sio   xxxxx |      60     -44      76      17     -8 |      49     56
            |      68      47     118      92     11 |       5


Table 7.2191.0   GPS week: 2191   Day: 0   MJD: 59581.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      19      23      68      51      2 |       2     18
emr   uuuuu |      70      45    -291     156    -19 |      16     27
esa   uuuuu |      11     -10      73     -44      3 |      13     21
gfz   uuxuu |     -15      -6     154    -357     -6 |      23     30
grg   uuuuu |     -32      -4     -75     -66    -10 |       8     17
igr   xxxxx |      -9     -15     184     -44      0 |      -1     20
irf   xxxxx |      17      -3      70      38      6 |       3     17
jpl   uuuuu |      38       9    -124      49     22 |       5     20
mit   uuuuu |      23     -25     130     137     16 |      25     30
ngs   uuxuu |     -98     -10    -209      53     -7 |      10     20
sio   xxxxx |     158     -50     242     -28      6 |      50     53

Table 7.2191.1   GPS week: 2191   Day: 1   MJD: 59582.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -1     -21    -136      -7      5 |       8     23
emr   uuuuu |      36      -9      56      82     -3 |      20     30
esa   uuuuu |       7       5     117     -92      0 |      20     29
gfz   uuxuu |     -29      31     109    -145      2 |      29     36
grg   uuuuu |     -43     -38     -61     -76     -3 |      13     22
igr   xxxxx |      -3      -4     155      39      7 |       7     24
irf   xxxxx |       8      14      42      25    -14 |       9     24
jpl   uuuuu |       7      53     -54     -88     10 |      15     30
mit   uuuuu |      41     -13      55      74     -8 |      33     41
ngs   uuxuu |     -40     -17     -69     309     -7 |      16     26
sio   xxxxx |     126      17     189     -84    -18 |      57     61

Table 7.2191.2   GPS week: 2191   Day: 2   MJD: 59583.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      14       2     -63     -62     -2 |      12     24
emr   uuuuu |     -23      10      -7      43    -10 |      21     31
esa   uuuuu |     -19      -3      57     -24      2 |      23     30
gfz   uuxuu |      -2       3     142     -52     -3 |      32     38
grg   uuuuu |      30     -27    -117      33      1 |      16     23
igr   xxxxx |     -18     -13     -20      30      0 |      11     24
irf   xxxxx |      -8     -10      67      14     -7 |      10     24
jpl   uuuuu |     -10      39     -72     -33      9 |      20     32
mit   uuuuu |     -15     -32     142      38      5 |      35     42
ngs   uuxuu |      30      13    -108     140      0 |      18     26
sio   xxxxx |      68      14      59     189      3 |      56     61

Table 7.2191.3   GPS week: 2191   Day: 3   MJD: 59584.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      12       0      -9     -74     -1 |       1     29
emr   uuuuu |     -26      -2    -125       6     21 |       8     32
esa   uuuuu |     -16     -12     -25     -16      1 |      13     31
gfz   uuxuu |       5       9     234     -40      4 |      21     36
grg   uuuuu |      49     -15    -100      61     -1 |       6     27
igr   xxxxx |     -21       2     -51      -2     -5 |       1     29
irf   xxxxx |     -18     -30      93     -34     -2 |      -1     31
jpl   uuuuu |     -22      33    -106       5    -19 |      11     33
mit   uuuuu |     -49     -46     247       7     -5 |      25     39
ngs   uuxuu |      82      56    -139     121     -1 |       8     28
sio   xxxxx |     -40     -33     117      72    -18 |      46     54

Table 7.2191.4   GPS week: 2191   Day: 4   MJD: 59585.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       6     -29     -27      30     12 |       2     30
emr   uuuuu |     -27      19     -96      15      4 |      11     35
esa   uuuuu |      -5       8    -171    -111      0 |      15     33
gfz   uuxuu |      -6      29     -66     -38      5 |      22     38
grg   uuuuu |      46      -3    -128      80      1 |       7     28
igr   xxxxx |     -27      -2    -103     -35     -2 |       2     30
irf   xxxxx |     -10      -6      48     -32     -2 |       0     32
jpl   uuuuu |     -34      26      32     -66    -15 |      12     33
mit   uuuuu |     -23     -59     275      31     -5 |      27     41
ngs   uuxuu |      48      56      22      69     -3 |       9     29
sio   xxxxx |      -1    -100      45      39    -20 |      45     54

Table 7.2191.5   GPS week: 2191   Day: 5   MJD: 59586.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       0       4      58       1      8 |       7     30
emr   uuuuu |     -52      -6     -23     -72      5 |      14     36
esa   uuuuu |       4      10    -120     -96      5 |      18     33
gfz   uuxuu |      30      36    -314      93     11 |      26     39
grg   uuuuu |      21      -3    -125     103      4 |       9     28
igr   xxxxx |      -4      -9     -23     -49      7 |       5     29
irf   xxxxx |      -5       0      -3     -32     -5 |       3     31
jpl   uuuuu |     -33       7       8     -89    -34 |      14     33
mit   uuuuu |     -15     -18     113      -3     -6 |      30     42
ngs   uuxuu |      41     -25     334      86      5 |      11     29
sio   xxxxx |      62     -72     -99     -42     -8 |      45     54

Table 7.2191.6   GPS week: 2191   Day: 6   MJD: 59587.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -25     -11      -8     -41     -8 |       7     30
emr   uuuuu |       4      46     -63      71     12 |      12     35
esa   uuuuu |       8      12    -120    -112      3 |      17     33
gfz   uuxuu |      28      35    -323    -103     -3 |      26     39
grg   uuuuu |       2      -1     -33       1     -5 |       8     28
igr   xxxxx |       4     -11       3      -7    -10 |       4     28
irf   xxxxx |       7      -5      23     -17    -11 |       2     31
jpl   uuuuu |      46      21      33     126     15 |      11     34
mit   uuuuu |     -19     -36     148       5    -16 |      29     41
ngs   uuxuu |     -21     -31     259     154      0 |      10     29
sio   xxxxx |      47     -88     -24     -23     -1 |      45     53


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