[IGSREPORT-27775] Wk 2144 IGS Final Orbits

acc acc at igs.org
Fri Feb 26 04:45:47 UTC 2021


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2144   (Feb 07, 2021 - Feb 13, 2021)

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:

igs2144[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2144[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2144[0-6].cls  IGS GPS clock combination summary report.
igs21447.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs21447.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   | 21 ASPA POTS SAVO UFPR
                0  |  EMR   | DAEJ DAEJ HOB2 KERG
                0  |  ESA   | BRAZ FLIN QAQ1 SCOR WHIT ANKR FLIN QAQ1 SCOR WHIT
                0  |  GFZ   | BRAZ NYA2
                0  |  GRG   | 21 21 STK2 STK2
                0  |  JPL   | NRIL NRIL
                1  |  COD   | ASPA BARH CHUR OUS2 THTI TIXI ZAMB BARH TIXI ZAMB
                1  |  EMR   | CHUR HARB PERT
                1  |  ESA   | NLIB PTBB NLIB PTBB
                1  |  GFZ   | NLIB SGOC NLIB SGOC
                1  |  GRG   | HOB2 OHI3 SVTL CPVG OHI3 SVTL
                1  |  JPL   | BADG ZECK BADG SVTL ZECK
                2  |  COD   | 21 21 CPVG GRAZ KERG THTI TIXI KERG TIXI
                2  |  EMR   | YELL YELL
                2  |  ESA   | CUSV NRMD PTBB SFER CUSV NRMD PTBB SFER
                2  |  GFZ   | ANKR KERG NYA2 ANKR BARH KERG NYA2 SFER
                2  |  GRG   | CPVG HOB2 KRGG SFER SVTL HOB2 KRGG SFER SVTL
                2  |  JPL   | BADG BADG SVTL
                3  |  COD   | ALIC ASPA CPVG DARW GRAS HARB HERS IRKJ KERG MAJU
                3  |  COD   | OUS2 SCRZ THTI TIXI TONG TIXI
                3  |  EMR   | HARB MDVJ
                3  |  ESA   | PTBB PTBB
                3  |  GFZ   | ANKR ANKR GRAS OUS2
                3  |  GRG   | SVTL SVTL
                3  |  JPL   | BADG BADG CPVG
                4  |  COD   | ANKR HOB2 TIXI ANKR HOB2 TIXI
                4  |  ESA   | PTBB PTBB
                4  |  GFZ   | NYA2 NYA2
                4  |  GRG   | SVTL SVTL VILL
                4  |  MIT   | NYAL
                5  |  COD   | NYA2 TIXI TIXI
                5  |  ESA   | ANKR PTBB SGOC ANKR PTBB SGOC
                5  |  GFZ   | SGOC SGOC
                5  |  GRG   | CCJ2 CCJ2 NYA2 PIMO
                5  |  JPL   | AREQ AREQ ZECK
                6  |  COD   | ANKR ASPA TEHN TIXI ANKR TIXI
                6  |  EMR   | YELL HRAO KERG YELL
                6  |  ESA   | PTBB PTBB
                6  |  GRG   | 10 10 SVTL TRO1 SVTL TRO1
                6  |  JPL   | BADG NRMD BADG NRMD

    
 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
               ----+--------+--------+-------------
                0  |  COD   | ~11:45 | ~ -0.10 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. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                0  |  SIO   |  14
                1  |  SIO   |  14
                2  |  SIO   |  14
                5  |  SIO   |  14
                6  |  SIO   | ALL (high Transformation - See Table 2)
                6  |  SIO   |  14

 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 |     .4     .0     .0       1      4      0    -.33
       EMR  |   0 |     .7   -3.1   14.2     -10     -1    -32     .24
       ESA  |   0 |    -.0    -.8    -.5     -29      7      9    -.23
       GFZ  |   0 |    -.2     .1     .5       9    -14     25    -.12
       GRG  |   0 |   10.8   -2.5    2.2     -12     -6    -14     .09
       JPL  |   0 |    4.6    -.2   19.8       3     -1     -6    -.28
       MIT  |   0 |    5.6    1.9     .7      -1    -12     20    -.05
       NGS  |   0 |   -1.5     .1    5.0      -2     -8     25    -.06
       SIO  |   0 |    4.9   -5.5   10.8    -118    -77    -63    -.38

       COD  |   1 |     .4     .2     .1       3      2      0    -.23
       EMR  |   1 |   -2.3   -3.9   14.6     -22     20    -38     .34
       ESA  |   1 |     .1    -.8    -.5     -32     24     14    -.16
       GFZ  |   1 |    -.6    -.1     .1      -1    -15     25     .03
       GRG  |   1 |   10.7   -3.6  -11.9     -12     -5    -23     .25
       JPL  |   1 |    1.0     .6   12.8       8     -3    -11    -.41
       MIT  |   1 |    3.7     .9    1.8      -7     -4      4    -.0 
       NGS  |   1 |   -2.0    2.2    9.3       9    -22     35     .07
       SIO  |   1 |    5.9   -1.1    8.6     -72   -100    -10    -.32

       COD  |   2 |     .2     .2    -.1       0     -1      4    -.14
       EMR  |   2 |   -1.2   -2.6    9.5     -28     14    -30     .30
       ESA  |   2 |     .0    -.5    -.5     -41     14      2    -.13
       GFZ  |   2 |    -.6    -.2    -.0       0    -14     14     .05
       GRG  |   2 |    9.5   -1.2  -14.5     -17     10    -27     .13
       JPL  |   2 |   11.0     .8   14.4     -19    -12    -20    -.67
       MIT  |   2 |    8.0    3.6     .8      -8     -7     26     .08
       NGS  |   2 |    1.6    2.1    5.0       4    -10     36     .13
       SIO  |   2 |    6.9   -2.4   13.2     -69   -122    -59    -.26

       COD  |   3 |     .2     .0    -.1      -7     -5      3    -.08
       EMR  |   3 |   -1.0     .3   16.3     -31     -1      6     .32
       ESA  |   3 |     .4    -.6    -.2     -37      8     13    -.04
       GFZ  |   3 |    -.5    -.1    -.4      -2     -6     22     .03
       GRG  |   3 |   13.2     .8   -8.0     -30     -5    -11     .27
       JPL  |   3 |    4.3   -2.3   17.8       4      2     -5    -.20
       MIT  |   3 |    7.0    3.6    1.4     -28     -5     16     .18
       NGS  |   3 |    2.7    1.9    4.3       1     17     33     .14
       SIO  |   3 |    8.5     .8    2.8       6   -139     -3    -.12

       COD  |   4 |     .2     .1    -.2      -4     -2      1     .01
       EMR  |   4 |    2.9    1.5   16.2      -9     -4      2     .30
       ESA  |   4 |     .7    -.9    -.3     -38      6     13     .0 
       GFZ  |   4 |    -.4    -.4    -.7      -9    -11     20     .16
       GRG  |   4 |    7.9   -2.0  -12.8     -18    -23      2     .21
       JPL  |   4 |    4.2   -1.4   18.2      -4      3     -2     .01
       MIT  |   4 |    7.4    3.1    3.1     -25      5     15     .28
       NGS  |   4 |    -.7    2.3    4.7     -12    -12     46     .25
       SIO  |   4 |    7.3    6.8    3.1      92    -82      7    -.09

       COD  |   5 |     .0     .2    -.5       1      3      0     .09
       EMR  |   5 |     .4    5.6   17.2     -15      1     12     .22
       ESA  |   5 |     .6   -1.0    -.4     -32      8     11     .07
       GFZ  |   5 |    -.3    -.2    -.4      -8    -10     17     .09
       GRG  |   5 |    8.0     .0   -1.4       7     -6     -8     .14
       JPL  |   5 |    4.5    3.1   18.7       3     -8     -2    -.06
       MIT  |   5 |    6.2    4.7    7.2     -17     -3     16     .31
       NGS  |   5 |     .6    2.5   10.8      19    -46     39     .22
       SIO  |   5 |    9.5   -2.2   19.6     -94   -186    -29    -.05

       COD  |   6 |    -.0     .2    -.7      -1      2      0     .10
       EMR  |   6 |   -2.0    5.1   15.2     -22     20     -7     .32
       ESA  |   6 |     .7    -.7     .1     -32     20      2     .15
       GFZ  |   6 |    -.8    -.2    -.6      -3     -2     19     .17
       GRG  |   6 |    4.8    -.3   -5.1       7    -11      3     .20
       JPL  |   6 |    1.9     .5   16.8       0      2    -14     .08
       MIT  |   6 |    2.2    2.1   -1.0       0     -4     29     .48
       NGS  |   6 |   -1.7   -1.2   11.3       5      5     34     .48
       SIO  |   6 |    1.8    4.3    2.8      58      7      1    -.02


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:
        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; 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
        ftp://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 1.2144.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2144.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 2.2144.[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 3.2144.[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 5.2144.0-6). 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 2144 summary.                       (Feb 07, 2021 - Feb 13, 2021)

Table 1.2144.a   GPS week: 2144   MJD: 59252.000-59258.000

         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  725|    0     0     0     5    10    -5  -.09    6    6 |    -711     217      6    100
        |    0     0     0    18    14    15   .01           |     137     399
emr   80|   -4    -2    11    -7     4   -18   .18   15   15 |  203026     388     15    130
        |    0     2     1    12    11     9   .02           |     625     811
esa  150|    0     0     1   -10     4    16  -.01    7    7 |   -1017     389      7     79
        |    0     0     1    16    10    11   .01           |     504     326
gfz  217|    0     0    -2     6     1     5   .12   10   10 |    -323      10     12    110
        |    0     0     2    16     9     8   .02           |     167     153
grg  105|    1    -2   -14    -3     8    -3  -.11   11   10 |     -89     -55     12    123
        |    1     0     3    12    16    18   .03           |     201     377
igr  n/a|    0     0    -1     4     7    -5   .05    4    4 |   -2235      41     10    104
        |    0     0     1     6    20     6   .01           |     703     980
jpl   80|    0    -1    11     3     0   -13   .19    9    9 |    2160     246      9     84
        |    0     0     0     8    12     9   .02           |     527     867
mit  360|    0     0    -4     8     6    15  -.03    6    6 |   -3234      47     25   1597
        |    0     0     0    16    23    12   .02           |     738     986
ngs  202|    0     2     5     0   -17   -18  -.01    9    9 |    -688     136    930   2086
        |    0     0     2    13    24     9   .02           |     143     383
sio  420|    0     1    -7   -96   -85   -20  -.05   19   11 |     ---     ---    ---    ---
        |    1     1     1   183   106    45   .01           |     ---     ---


Table 1.2144.b   GPS week : 2144   MJD: 59252.000-59258.000   

         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  |    3    3    4    4    4    3    4 |
   4  |    3    3    3    4    3    4    4 |
   5  |    3    4    4    3    3    3    3 |
   6  |    3    3    3    3    3    3    3 |
   7  |    3    3    3    3    3    3    3 |
   8  |    3    3    4    3    4    4    5 |
   9  |    3    3    3    3    3    3    3 |
  10  |    3    4    3    3    3    3    3 |
  11  |    5    5    5    4    6    5    4 |
  12  |    4    4    4    3    4    3    4 |
  13  |    3    4    3    3    3    3    3 |
  14  |    3    3    3    4    4    3    3 |
  15  |    4    4    4    4    3    4    4 |
  16  |    3    3    3    3    3    4    4 |
  17  |    3    4    4    4    4    4    4 |
  18  |    3    3    3    3    3    3    3 |
  19  |    3    4    4    5    4    4    4 |
  20  |    3    3    3    3    3    3    3 |
  21  |    3    3    3    3    3    3    3 |
  22  |    3    3    4    3    4    4    4 |
  23  |    5    5    5    5    4    5    5 |
  24  |    3    3    3    3    3    3    3 |
  25  |    3    3    3    3    3    3    3 |
  26  |    3    3    3    3    3    3    3 |
  27  |    3    3    3    3    4    4    4 |
  28  |    3    3    3    3    3    3    3 |
  29  |    4    4    4    4    4    4    4 |
  30  |    3    3    3    3    2    3    3 |
  31  |    3    3    3    3    3    3    3 |
  32  |    3    3    3    3    3    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 2.2144.0   GPS week: 2144   Day: 0   MJD: 59252.000                            

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  735|    0     0     0   -15     4   -13  -.09    7    7 |    -854     569      5     93
emr   80|   -4    -3    11    -4    14    -5   .17   15   15 |  202240     423     15    146
esa  150|    0     0     0     0     3    34  -.03    7    7 |   -1407     306      6     71
gfz  212|    0     1    -1    10     3     4   .14    9    9 |    -473    -225     12     71
grg  109|    2    -2    -6     1     6     7  -.10   11   10 |      11    -714      9    127
igr  n/a|    0     0    -2     2     0     2   .03    4    4 |   -2028    -343     10     93
jpl   80|   -1     0    10    -4     8    -2   .18    9    9 |    1587     -76     10     84
mit  360|    0     0    -4    35   -12     1  -.04    6    6 |   -2955    -305     33   1583
ngs  206|    0     2     3   -15   -34     0  -.01    9    8 |    -813     369    880   2161
sio  422|    0     0    -6   -24    29   -46  -.05   21   10 |     ---     ---    ---    ---

Table 2.2144.1   GPS week: 2144   Day: 1   MJD: 59253.000                            

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  733|    0     0     1     3    23     8  -.08    7    6 |    -737     448      7    110
emr   80|   -5    -2    11   -19    -6   -13   .19   15   15 |  202817     808     16    206
esa  150|    1     0     0    -6    -7     0  -.00    8    7 |    -978     353      8     89
gfz  217|    0     0    -4    11     0    -4   .15   10   10 |    -359      91     12     83
grg  108|    1    -2   -14    -8    -9    19  -.12   11   11 |    -317     407     12    130
igr  n/a|    0     0    -1    -3    -4    -5   .05    4    4 |   -1888     539      9    105
jpl   80|   -1    -1    11    -1   -13   -13   .18    9    9 |    1936    1026      9     98
mit  360|    0     1    -4    11    23     9  -.05    6    6 |   -2781     460     21   1590
ngs  205|    0     1     5     4   -60   -26  -.01   10    9 |    -720     398   1127   2272
sio  423|    0     1    -5    -7    14     5  -.04   19   10 |     ---     ---    ---    ---

Table 2.2144.2   GPS week: 2144   Day: 2   MJD: 59254.000                            

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  725|    0     0     0   -19   -12     0  -.09    7    7 |    -752     207      7     93
emr   83|   -5    -5     9    -3    11    -5   .16   16   16 |  203916    -689     16    105
esa  150|    0     0     2     1     0     9   .00    7    7 |    -411     184      9     79
gfz  218|    0     1    -1    37    -4    -3   .11   10   10 |     -48    -159     12     77
grg  104|    0    -2   -17    -1    21   -11  -.12   11   10 |      22     134     13    118
igr  n/a|    0     1     0    17     7    -2   .06    4    4 |   -1133   -1292     10    114
jpl   80|   -1    -1    11    10     3   -28   .19    9    9 |    3004   -1007     11     72
mit  360|    0     0    -3    10    -3    36  -.04    6    6 |   -2616   -1224     32   1897
ngs  204|    1     2     5    14    18   -11  -.03    9    9 |    -659      -7    828   1860
sio  418|    0     1    -4   -41   -24   -20  -.05   23    9 |     ---     ---    ---    ---

Table 2.2144.3   GPS week: 2144   Day: 3   MJD: 59255.000                            

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  717|    0     0     0    11     9   -20  -.09    6    6 |    -496    -216      6     98
emr   79|   -5    -2    13   -15     3   -25   .19   15   15 |  203252    -776     16    106
esa  150|    0     0     1   -32     2    10  -.03    8    8 |    -514      81      7     82
gfz  217|    0     0    -1     6     0     5   .12   10    9 |    -224      71     13     91
grg  101|    0    -3   -14   -13     8   -36  -.06   10    9 |     208    -338     13    128
igr  n/a|    0     0    -1     7    10   -18   .03    4    4 |   -2238   -1094     10    110
jpl   80|    0     0    12    -2    12   -14   .16   10   10 |    2271    -553     10     84
mit  360|    1     0    -3    22     5    26  -.01    6    6 |   -3050   -1191     23   1309
ngs  199|    0     2     5    -5    -9   -21  -.01    9    8 |    -491    -223    953   1933
sio  414|    1     2    -8     5   -72    50  -.07   10    9 |     ---     ---    ---    ---

Table 2.2144.4   GPS week: 2144   Day: 4   MJD: 59256.000                            

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  717|   -2     0     0    17    19   -16  -.09    7    7 |    -666      67      6     99
emr   80|   -4    -3    11   -16    19   -23   .19   15   15 |  202475     744     16    111
esa  150|    0     0     2   -13    23    20  -.02    8    8 |   -1800    1065      7     72
gfz  221|    0     1     1    -3    18     8   .13    9    9 |    -309      -1     15     99
grg  102|    1    -3   -18   -23    31   -10  -.13   11   10 |    -222     216     15    116
igr  n/a|    0     0     0     0    51    -3   .05    4    4 |   -3179     434     10    111
jpl   80|   -1    -1    12     0    10    -2   .23   10   10 |    1825     293      9     81
mit  360|    0     0    -3    -2   -24    18  -.01    6    6 |   -4695     469     22   1854
ngs  201|    0     2     5   -17    -6   -22  -.03    8    7 |    -567    -221    881   2083
sio  424|    2     2    -9    57   -86     2  -.05   10    9 |     ---     ---    ---    ---

Table 2.2144.5   GPS week: 2144   Day: 5   MJD: 59257.000                            

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  725|   -1     0     1    10    29    20  -.11    6    6 |    -880     758      8    106
emr   80|   -4     0    10    18    -7   -28   .17   14   14 |  202768     878     15    108
esa  150|    0     0     0    11    13    19  -.02    7    6 |   -1269     504      8     92
gfz  218|   -1     1    -5    -7   -12     4   .10   11   11 |    -562     216     14    238
grg  106|    3    -3   -13    17    14    10  -.14   10   10 |    -326      46     12    120
igr  n/a|    0     0    -2     5    -7    -6   .06    4    4 |   -3062     689     11     97
jpl   80|   -1     0    11    20   -18   -11   .21    8    8 |    1782     574     10     88
mit  360|    0     0    -3    -1    44     4  -.06    7    7 |   -3738     778     25   1432
ngs  204|    1     1     1    12   -15   -17   .02    8    8 |    -916     776   1113   2381
sio  421|   -2    -2    -7  -188  -228   -88  -.04   24   14 |     ---     ---    ---    ---

Table 2.2144.6   GPS week: 2144   Day: 6   MJD: 59258.000                            

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  728|   -1     0     0    32     0   -14  -.10    6    6 |    -595    -310      7    104
emr   80|   -3     1    10   -10    -7   -24   .21   14   14 |  203715    1334     15    131
esa  150|    0     0     0   -28    -2    20  -.00    7    7 |    -743     230      7     69
gfz  220|    0     0    -3   -12     5    20   .10   10   11 |    -292      83     12    117
grg  108|    1    -2   -12     2   -15    -2  -.11   10   10 |       1    -140     11    127
igr  n/a|    0     0    -2     1    -8    -2   .04    4    4 |   -2122    1359     10     98
jpl   80|    0    -1    11     1    -4   -21   .19   10   10 |    2717    1466      9     84
mit  360|    1     0    -5   -13    12    14  -.03    6    6 |   -2805    1344     25   1514
ngs  200|    0     1     9     9   -10   -30  -.00   10    9 |    -655    -134    728   1914
sio  419|    0     2    -7  -476  -228   -46  -.06   23   17 |     ---     ---    ---    ---

       
       
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 3.2144.0   GPS week: 2144   Day: 0   MJD: 59252.000                            

        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  |    4   10    7    8    9    3    7    4    9   11    2 |    19   25   24   23   22   21   25   18   22   21    21
   2  |    7   11    6   11    9    4    7    5    8   10    2 |    19   22   20   28   20   22   21   21   22   25    21
   3  |    5   18    7   11    9    4    9    4    9   10    3 |    20   26   22   21   19   19   22   17   20   21    19
   4  |    7   14    7    8   11    5   10    5   10    9    3 |    67   60   65   70   71   67   63   67   67   66    66
   5  |    7   11    8    8   17    4   10    4   12   10    3 |    20   22   19   24   24   21   22   20   26   28    20
   6  |    7    8    8    8    5    3    7    5    8   12    2 |    22   27   26   26   23   24   29   22   22   24    23
   7  |    5   10    5    6    9    2    9    5    7   10    2 |    37   41   37   40   37   38   44   37   39   31    38
   8E |    8   18    5   14   11    3   10    5    8   10    3 |    19   24   20   17   24   19   22   18   21   22    19
   9  |    7   12    6    8    8    4    8    6    5   10    2 |    37   42   38   38   37   36   40   38   35   24    37
 X10  |    5   16    6   10    8    2   10    6    9  ---    3 |    20   23   23   25   22   22   21   21   20  ---    20
 X11  |    6   16  ---   15   19    7   10    8   11  ---    4 |    20   27  ---   21   28   22   27   20   22  ---    20
  12  |    7   20    5    9   19    4    8    9    6    8    3 |    35   43   36   41   32   35   40   35   40   39    36
  13  |    5   13    5    7    8    3   11    4   10   13    3 |    16   26   16   21   18   18   27   19   17   20    18
  14  |    6   13    8    9    9    4    8    8   10   95    3 |    64   57   58   67   69   62   59   64   63   87    62
  15  |    7   14    5   10   15    4   14    6   10   13    3 |    35   34   32   36   35   34   36   32   32   34    32
  16  |    6   19    4    8   11    6    6    6    7    9    2 |    23   26   21   24   25   22   20   22   25   17    21
  17  |    7   15    8    7   17    4    9    7    8    9    3 |   100  103   98  100   92  100  101  101   96   85    98
 X18  |    7   11    9    8    9    4    9    6   11  ---    3 |    54   58   54   54   54   54   56   55   55  ---    55
  19  |    8   16    7   10   11    4    7    5    8   12    3 |    24   23   28   28   29   26   27   26   31   26    26
  20  |    6   10    6    7    8    2    8    6   10   13    2 |    17   18   18   23   17   19   18   20   18   24    18
  21  |    4   16    6   10   13    3    6    6    8   11    3 |    14   22   16   22   18   16   19   15   16   19    16
  22  |    5   21    6    9   12    3    7    5    6    9    3 |    15   24   17   22   18   17   18   16   16   18    16
  23  |   11   20   14   11    9    4   12    9   17   13    4 |   111  113  108  107  107  108  112  107  111   96   108
  24  |    6   11    7    8    6    3   13    6    7   14    3 |    19   31   22   21   19   21   30   17   17   18    19
  25  |    6   13    8    9   11    3    6    5    9   10    2 |    17   24   21   21   20   18   22   17   17   20    18
  26  |    8    8    9    8    7    4    5    7    8   11    2 |    19   24   22   20   19   19   23   18   20   19    19
  27E |    6   21    5    7   13    3   11    6    6    9    3 |    19   27   20   23   19   21   23   18   21   22    19
  28  |    4   13    4    9    7    2   10    8    7    9    2 |    22   25   20   24   23   22   22   25   22   23    21
  29  |    9   23    8   13   19    4    7    7   12   10    4 |   114  116  116  119  111  117  116  113  120  116   115
  30  |    6   12    4    7    7    2   10    5    7   13    2 |    17   30   22   21   20   20   29   18   21   19    20
 X31  |    4   11    6    7    6    4    9    6    7  ---    2 |    37   42   37   35   35   36   46   34   38  ---    37
 X32  |    6   11    7    7    9    4    8    5    5  ---    2 |    39   42   39   39   35   39   41   37   38  ---    38
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   15    7    9   11    4    9    6    9   21      |T   34   38   35   37   35   35   38   34   35   35    34
 WRMS |    7   15    7    9   10    4    9    6    8   10      |NE  30   35   32   33   32   31   34   30   31   31    31
 MEDI |    6   13    6    8    9    4    9    6    8   10      |MD  20   27   23   24   24   22   27   21   22   24    21

Table 3.2144.1   GPS week: 2144   Day: 1   MJD: 59253.000                            

        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  |    4    8    7    9    9    3    8    4    8    9    2 |    18   21   20   19   19   19   22   16   18   20    18
   2  |    7   17    8   11    9    5    8    6    7   12    3 |    17   20   20   20   16   19   18   20   20   24    18
   3  |    6   17    6   15    8    4    9    5    7    9    3 |    18   23   21   22   19   20   21   19   17   21    18
   4  |    7   16    6    8   11    5    8    7   11    7    3 |    51   47   48   54   53   50   47   52   48   54    50
   5  |    8   28    9   11   16    4   10    4    9   14    4 |    20   28   18   24   24   20   24   21   24   29    20
   6  |    8   12    8   10    7    8    8    9   10   13    3 |    20   29   23   20   19   23   25   22   23   23    21
   7  |    4   11    5    9    9    4    7    5    4   11    2 |    24   28   23   29   24   25   28   24   23   24    24
   8E |    5   15    5   12   14    3   12    7    7    8    3 |    17   18   16   14   20   16   20   16   15   20    15
   9  |    5    8    7   10    8    3    9    5    9    9    2 |    34   36   34   34   33   33   36   33   32   25    33
  10  |    6   16    8   13    8    3   12    6   12    8    3 |    19   21   23   24   22   20   19   19   20   24    19
 X11  |    8   14  ---   13   20    7   11    7   12  ---    4 |    18   21  ---   17   27   18   24   16   17  ---    16
  12  |    7   24    6   10   20    4    9    7    8    7    3 |    29   33   30   31   27   29   33   29   34   33    29
  13  |    6   13    8    9   10    4   11    6   14   13    3 |    16   27   19   23   19   20   28   19   22   19    19
  14  |    7   13    8    6   12    4    8    7    9   87    3 |    38   37   36   37   44   37   38   38   39   80    38
  15  |    5   17    7   10   16    4   12    4    8   10    3 |    29   30   28   33   32   30   31   28   28   29    28
  16  |    5   22    6   10   10    4    8    5    8    7    3 |    19   23   17   23   20   17   18   18   21   17    18
  17  |    8   13   10    8   11    5    9    9   10   14    3 |   113  113  109  113  113  112  112  113  110   94   112
  18  |    7   10    8   10    7    5    9    7   12   10    3 |    28   33   30   29   30   30   32   31   28   45    29
  19  |   10   15    8    9   18    4   10    8    6   14    3 |    23   24   24   27   22   23   23   27   22   26    22
  20  |    5   10    7   10    9    4    9    8   13   10    3 |    16   17   19   22   18   18   16   18   19   21    16
  21  |    5   11    6    9   10    4    8    5    7   17    3 |    11   18   13   19   13   15   17   13   13   21    13
  22  |    6   19    6   11   12    4    8    5    7    9    3 |    14   21   16   22   15   18   18   15   16   18    15
  23  |   10   18   14   13   10    6   12   10   19    9    4 |    77   79   78   74   73   76   77   75   81   72    76
  24  |    5   10    6   10    7    3   11    5    7   10    2 |    17   28   21   20   17   19   29   15   17   17    18
  25  |    5   10    9    8   11    3    9    4   13    9    3 |    14   21   20   20   17   17   21   16   16   18    16
  26  |    7   10    8    8    8    4    6    4   10    9    2 |    18   23   21   19   18   18   22   17   19   20    18
  27E |    6   20    6   10   14    3   11    7    8    9    3 |    17   23   18   19   14   18   20   16   18   19    16
  28  |    6   13    6    8    7    3    8    6    7   11    2 |    21   24   19   22   22   21   21   23   19   21    20
  29  |    9   22   11    8   17    5    9    5   10    8    3 |   110  110  112  114  105  112  110  111  113  113   110
  30  |    4   11    5    8    8    2   10    5    6   12    2 |    16   29   20   19   16   19   28   16   17   18    18
  31  |    4   10    7    6    6    3    9    6    8    8    2 |    22   28   19   21   19   22   29   21   22   30    21
  32  |    7   12    6    7    7    4    9    6    9    9    2 |    32   33   31   30   28   30   32   31   33   22    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   15    8   10   11    4    9    6   10   19      |T   29   33   30   31   29   30   32   29   30   32    29
 WRMS |    6   15    7   10   11    4    9    6    9   10      |NE  24   28   25   26   25   25   27   24   25   28    24
 MEDI |    6   13    7   10   10    4    9    6    8    9      |MD  19   27   21   22   20   20   24   20   21   23    19

Table 3.2144.2   GPS week: 2144   Day: 2   MJD: 59254.000                            

        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  |    4   10    7    7    7    3   10    4    8    8    2 |    18   23   21   21   18   20   23   18   21   20    19
   2  |    6   11    8   13    9    4    7    5   10   13    3 |    17   20   23   26   17   20   18   19   20   23    19
   3  |    7   20    6   18   11    5   11    5   10    9    3 |    18   22   22   23   19   20   22   18   19   21    18
   4  |   10   15    6   10   13    5    9    6    8   10    3 |    53   48   51   56   60   52   50   53   53   49    52
  X5  |    7  ---    6   15   17    5   10    4    8   18    4 |    20  ---   21   27   26   21   23   21   24   30    21
   6  |    7    9    7   10    7    3    7    4   11   10    2 |    18   24   23   19   18   21   25   18   23   19    20
   7  |    5   11    6    9   10    3    9    5    7    7    2 |    26   29   25   30   20   26   29   24   27   23    25
   8E |    7   13    5   10   15    4   10   10    9    9    3 |    18   19   19   17   21   17   19   22   19   18    18
   9  |    7   13    9    9    7    5    8    6    9    7    3 |    30   33   32   29   30   30   33   29   30   18    30
  10  |    5   14    6    7    8    2   11    6    9    7    2 |    20   24   25   25   24   22   24   23   21   21    22
 X11  |    9   16  ---   13   15    5    9    8   12  ---    4 |    17   24  ---   15   17   16   22   16   18  ---    15
  12  |    7   20    7    9   19    4    8    7    8    7    3 |    26   37   30   31   29   27   32   29   29   30    28
  13  |    6   20    6    8   10    4   10    6   10   12    3 |    15   28   18   21   20   19   28   19   18   19    18
  14  |    8   12    9    7   11    4    8    6    7  120    3 |    47   45   41   45   54   44   44   47   46  111    46
  15  |    6   24    6   11   13    4   12    5    7   10    3 |    28   31   26   31   28   29   29   27   30   26    26
  16  |    5   21    6   12   12    5    7    5    7    9    3 |    16   23   16   19   20   16   16   17   17   14    16
  17E |    8   21   11    9    9    3    9    7   12   11    3 |    58   56   49   55   58   54   55   55   55   75    54
  18  |    8    9    8   10    6    5    9    7   10    9    3 |    29   34   31   33   32   31   33   32   35   29    31
  19  |   11   20    8    8   17    3    9    7   11   14    4 |    23   26   25   29   21   25   26   26   27   29    24
  20  |    6   11    7    9    8    3   10    6   10    8    2 |    14   16   16   20   17   16   15   17   18   18    15
  21  |    6   16    5    9    8    4    9    7    9    8    3 |    13   21   14   21   13   15   17   15   15   18    14
  22  |    7   22    6   12   12    4   10    5    9    8    3 |    13   22   16   20   15   16   17   15   16   19    14
  23  |   10   18   13   13    9    5   12   11   19    9    4 |    78   80   77   78   75   78   80   76   85   72    77
  24  |    6   11    6   10    6    4   11    6    8   10    2 |    14   28   19   21   15   19   27   16   18   17    17
  25  |    7   12    8    8   11    3    6    4    7    7    2 |    15   24   20   20   18   17   21   16   16   16    17
  26  |    6    9    8   10   10    3    5    5    7    8    2 |    17   24   20   22   17   18   21   17   20   19    18
  27E |    6   15    5    8   11    3   11    7    9    8    3 |    18   21   18   22   13   18   21   17   19   18    17
  28  |    7   13    7    9    9    2   11    7    7    8    3 |    21   26   19   19   23   20   22   23   19   22    19
  29E |    8   24   11   14   12    4    7    6   13   12    4 |   131  129  130  134  128  130  130  128  132  127   130
  30  |    5   13    5    8   10    2   10    4    6    9    2 |    15   30   19   17   16   18   27   16   19   17    17
  31  |    6   12    5    6    7    4    9    5    9    9    2 |    27   32   27   27   22   26   31   25   28   20    26
  32  |    7   11    6    8    8    3    7    4    4    7    2 |    31   33   34   34   28   32   35   30   30   20    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   16    7   10   11    4    9    6    9   23      |T   28   33   29   31   29   29   31   28   30   31    28
 WRMS |    7   16    7   10   10    4    9    6    9    9      |NE  24   30   26   27   25   25   28   25   26   27    24
 MEDI |    7   13    6    9   10    4    9    6    9    9      |MD  18   26   23   23   20   20   25   21   21   20    19

Table 3.2144.3   GPS week: 2144   Day: 3   MJD: 59255.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    4    9    7   10    6    4    8    6    9  ---    2 |    14   21   20   18   15   17   20   15   17  ---    16
   2  |    7   13    6   12    6    3    7    5   10   11    3 |    19   20   20   24   18   20   21   19   21   21    19
   3  |    5   20    8   14    9    4   11    8    9   10    3 |    18   25   23   22   19   20   22   18   22   23    19
   4  |    7   18    9   12   12    4   10    7   14   16    4 |    45   38   43   49   51   46   40   44   49   49    44
   5  |    7   12    5   10   15    4    9    4    8   11    3 |    20   24   19   23   26   20   24   21   21   24    20
   6  |    6    8    8    7    7    4    9    7   10    9    2 |    17   23   21   18   17   19   22   17   18   19    17
   7  |    5   10    6    7   10    3    9    6    9   13    2 |    27   34   29   29   22   28   32   27   30   25    28
   8E |    6   14    6   10   16    3   11    8    9    7    3 |    17   18   18   17   25   17   17   15   18   19    16
   9  |    7   11    9   12    9    4    7    6    7   12    3 |    17   27   22   24   19   21   23   18   22   30    20
  10  |    4   15    6   10    7    3   11    7    8    7    3 |    19   23   23   23   21   21   21   22   20   19    20
 X11  |    6   15  ---   13   13    6   12    7   11  ---    4 |    16   23  ---   18   17   17   23   16   17  ---    16
  12  |    5   24    6    6   15    4    8    5    6   10    3 |    22   33   21   26   24   22   27   23   26   20    22
  13  |    5   13    9    8    9    4   10    7   11   15    3 |    16   26   19   20   18   18   27   18   21   24    17
 X14  |    8   13   10    8   10    6   10    6   14  ---    3 |    53   47   47   53   58   51   46   52   49  ---    50
  15  |    6   17    7   10   15    6   13    5    8   10    3 |    26   28   23   29   26   26   28   23   28   24    24
  16  |    6   20    5   10    9    5    7    6    8    9    3 |    16   21   17   19   21   18   18   18   20   17    17
 X17E |    9   18   10   14   11    6    9    8   12  ---    4 |    84   81   79   85   85   81   82   83   81  ---    82
  18  |    7   12    9    5    7    5   10    7    9   11    3 |    31   35   31   31   30   31   35   32   30   30    31
 X19  |   10   22    7   10   19    5   10    9   10  ---    4 |    23   28   25   27   24   25   25   24   28  ---    23
  20  |    5   12    5   10    8    3   11    7    8    8    2 |    15   18   17   18   17   17   16   20   18   20    16
 X21  |    4   13    7   11    9    5    8    8   10  ---    3 |    12   19   17   21   14   16   18   14   16  ---    14
  22  |    4   21    8   11   11    4    9    6    5   10    3 |    12   21   17   22   16   17   17   15   16   18    14
  23  |   11   18   14   14   11    6   12    9   14   11    4 |    62   61   58   63   60   57   60   57   68   55    59
 X24  |    6   11    7   11    7    4   10    7    9  ---    3 |    17   27   19   19   17   20   28   17   19  ---    18
  25  |    6    8    7   10    9    3    9    5    7    8    2 |    18   23   21   22   19   19   23   17   15   18    18
  26  |    5    7    7   10    9    4    7    4    9    8    2 |    15   22   18   17   16   16   21   15   17   17    16
  27E |    6   14    6   11   10    4   11    8    8    8    3 |    18   19   19   20   16   17   18   16   19   19    16
 X28  |    6   12    6    8    8    3   10    7   13  ---    3 |    20   22   17   18   20   19   21   20   21  ---    18
  29E |    5   26   11   10   11    6    7    4    9    8    3 |   100   99  101   99   97  100  100   99  101  100   100
 X30  |    6   11    5    8    9    3   10    4    8  ---    2 |    16   29   22   19   17   20   28   17   23  ---    19
  31  |    5   10    5    5    6    3   10    5    7   12    2 |    27   35   27   29   25   29   37   27   33   22    28
  32  |    7   14    7    9    8    4   10    7    5    7    2 |    21   31   23   22   21   22   25   19   22   21    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   15    8   10   10    4   10    6    9   10      |T   26   31   28   29   27   27   30   26   28   27    26
 WRMS |    6   15    8    9    9    4   10    6    8    9      |NE  22   28   24   25   23   23   26   23   25   24    23
 MEDI |    6   13    7   10    9    4   10    7    9   10      |MD  18   25   21   22   20   20   23   19   21   21    19

Table 3.2144.4   GPS week: 2144   Day: 4   MJD: 59256.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6    9    7    9    6    4    7    5    7  ---    2 |    15   21   19   18   16   18   22   15   16  ---    16
   2  |    7   13    6    8    8    3    9    6   11   12    3 |    17   18   18   21   16   19   18   18   20   20    17
  X3  |    7   16    8   12   10    5   12    6   10  ---    3 |    17   24   22   22   17   19   22   17   19  ---    17
   4  |    9   17    8    7   14    5   11    6    7   11    3 |    49   46   46   46   56   48   47   49   50   60    48
   5  |    6   16    6   12   16    5    8    5    5    8    3 |    19   21   17   22   23   20   22   20   19   21    18
   6  |    6   11    7    6    7    5    8    6    6   10    2 |    17   22   20   18   17   19   23   16   17   19    17
   7  |    5    9    5    8   11    3    8    4    7    9    2 |    28   33   29   32   25   29   32   29   30   30    29
   8E |    7   17    4   14   14    3   11    6   10   12    3 |    15   20   16   14   19   15   18   14   15   20    14
   9  |    7   10    8    8    7    4    8    5    7    7    2 |    29   30   30   28   27   28   30   28   28   26    28
  10  |    6   16    6    7    7    3   10    8    8    7    3 |    21   23   23   21   20   20   21   22   21   21    20
 X11  |    8   17  ---   16   28    6   11    8   11  ---    5 |    16   23  ---   17   31   15   24   14   17  ---    15
  12  |    6   22    6   10   14    4   12    5    7   10    3 |    28   39   29   29   30   29   35   30   32   31    30
  13  |    6   13    9    8    9    3    9    7    8    9    3 |    14   25   16   19   19   17   26   18   16   16    16
 X14  |    6   12   10    8   11    6   10    7   11  ---    3 |    49   45   45   51   55   47   45   50   47  ---    48
  15  |    5   13    7   10   16    4   12    4    8    8    3 |    27   28   25   32   29   28   29   27   29   30    27
  16  |    7   22    4   10   13    3    8    5    6    8    3 |    17   22   17   19   22   16   17   18   18   18    16
 X17E |    7   20   12   16   12    4    9    5    8  ---    4 |    70   71   65   73   71   68   68   68   66  ---    68
  18  |    8   10    9    9    8    6    9    7    7    9    3 |    30   33   30   30   31   30   32   32   33   26    31
 X19  |   11   22    7   12   14    4   10    7    9  ---    4 |    32   35   34   38   29   35   35   33   37  ---    33
  20  |    6   12    5    8    8    3   10    8    6   10    2 |    15   17   17   18   18   17   18   20   17   21    16
 X21  |    6   15    6   11    9    5    8    6   10  ---    3 |    11   19   15   16   13   14   17   13   16  ---    12
 X22  |    7   17    7   10   13    5    8    7   10  ---    3 |    12   20   15   21   14   16   17   13   17  ---    13
  23  |   10   17   14    9   11    5   12   11   13    9    4 |    74   74   72   73   72   72   75   72   77   83    72
  24  |    6   11    7   13    6    4   11    7    9    8    3 |    16   26   19   21   14   19   28   15   17   15    16
  25  |    6   13   11    8    9    4   12    5    6   14    3 |    17   22   20   20   19   17   22   17   16   22    17
  26  |    5    9    7    9   11    3    7    3    8    6    2 |    14   20   17   17   17   16   22   15   17   17    15
  27E |    7   27    5   11   12    3   12    6    7    9    3 |    16   28   16   17   13   15   20   16   17   19    15
 X28  |    6   11    5    9   10    3   11    5   10  ---    3 |    22   26   19   23   24   22   22   21   23  ---    21
  29E |    6   22   12   12   13    4    7    5   10    9    3 |   120  120  119  121  119  120  119  120  121  121   120
  30  |    5   11    4    8   10    3    8    4    5    8    2 |    17   28   20   20   16   20   27   16   19   25    18
  31  |    4   12    6    5    8    5    9    4    5   17    2 |    24   32   25   26   19   25   32   24   24   27    24
 X32  |    7   10    6    7   10    2    8    5    5  ---    2 |    28   31   29   29   26   28   31   27   29  ---    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   15    8    9   11    4   10    6    8   10      |T   28   32   29   30   29   28   31   28   29   31    27
 WRMS |    7   15    8    9   10    4   10    6    7    9      |NE  23   28   25   26   25   24   28   24   25   27    23
 MEDI |    6   13    7    9   10    4    9    6    8    9      |MD  17   26   20   21   20   20   24   20   19   21    18

Table 3.2144.5   GPS week: 2144   Day: 5   MJD: 59257.000                            

        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    7   11    6    3    8    6    8   18    3 |    15   23   22   22   17   20   23   16   18   25    18
   2  |    7   13    5   12    7    3    9    8    7   12    3 |    17   21   19   25   16   19   19   20   17   25    18
   3  |    4   17    7   16    9    5    9    6    7   15    3 |    16   23   21   21   17   19   19   15   17   23    16
  X4  |    8   15    7    9   13    4   11    8    7  ---    3 |    48   48   51   53   54   51   49   52   48  ---    49
   5  |    5   14    5   12   15    4    8    6    7   14    3 |    20   21   18   23   23   20   24   21   22   23    19
   6  |    6    8    6    7    6    3    7    9    7   16    2 |    19   24   23   22   19   22   25   21   20   21    20
   7  |    5    8    5    8    8    2    7    6    7   20    2 |    21   24   22   25   20   22   23   22   27   31    22
   8E |    6   15    6   15    9    3   10    7   10   26    3 |    15   20   17   14   16   15   17   15   17   30    15
  X9  |    6    9    7    8    8    4    8    7    8  ---    3 |    31   36   36   34   32   34   34   32   31  ---    32
 X10  |    6   14    6   12    6    5    9    9   10  ---    3 |    21   23   27   25   23   24   26   24   20  ---    22
 X11  |    6   14  ---   13   11    7    9   11   12  ---    4 |    15   26  ---   18   17   17   25   17   20  ---    16
  12  |    7   23    5    6   13    3    9    7    7    9    3 |    34   39   33   34   30   32   35   31   33   28    32
  13  |    7   13    6    9    9    4    9   10    8   13    3 |    15   28   19   21   20   19   28   22   21   18    19
  14  |    6   14    8    8    9    5    7    9    9   79    3 |    38   37   37   42   41   37   38   39   37   79    38
  15  |    6   13    6   10   16    5   10    7   10   16    3 |    27   32   28   32   33   30   29   29   28   33    28
 X16  |    8   19    4   12   10    4    8    5    9  ---    3 |    18   25   19   23   20   19   21   19   23  ---    19
  17E |    7   15   12   16   10    4    9    7    8   15    3 |    66   67   61   69   68   64   63   67   66   59    65
  18  |    8   12    9    7    9    6    7    8    7   17    3 |    35   40   39   39   39   38   40   39   40   41    39
  19E |    9   16    9   14   12    4   10    9    8   16    3 |    34   35   37   34   31   36   38   37   38   29    34
 X20  |    6   14    5    8    9    2    9   10    7  ---    3 |    18   20   18   19   18   19   20   20   21  ---    18
 X21  |    5   13    6   10    8    3    8    8    9  ---    3 |    11   20   15   19   13   15   19   14   16  ---    14
 X22  |    5   22    7   13   12    6    8    7   11  ---    3 |    12   24   16   21   16   17   18   14   18  ---    14
 X23  |   10   18   12   11   10    5   10   12   12  ---    4 |    84   86   85   85   83   84   86   84   83  ---    84
  24  |    6   11    7    8    6    3    9    6    8   12    2 |    15   28   20   19   16   20   28   17   17   20    18
  25  |    4    9    7    7    8    4    9    5    9    9    2 |    14   19   19   20   18   17   22   15   16   18    16
 X26  |    5   10    7    9    7    4    9    4    7  ---    2 |    15   21   18   17   16   16   22   14   16  ---    16
 X27E |    6   18    5   15   14    4    9    7   10  ---    3 |    15   24   17   17   11   15   20   16   17  ---    15
  28  |    6   13    4    8    8    3    8    7    7   14    2 |    19   25   18   21   19   20   22   21   20   25    19
  29E |    8   17   11   11   13    5    8    7    6   13    3 |    93   93   94   96   91   94   93   93   95   89    93
  30  |    6   11    5    9    9    2    7    6   10   23    3 |    15   29   22   21   14   20   27   17   25   22    19
 X31  |    7   11    6    8    7    4   10    6    7  ---    2 |    17   27   20   20   17   20   28   22   21  ---    20
 X32  |    7   12    7   11    8    4    9    7    7  ---    3 |    28   33   34   32   29   31   34   31   29  ---    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   14    7   11   10    4    8    7    8   24      |T   26   32   29   30   28   28   31   28   29   33    28
 WRMS |    6   14    6   11   10    4    8    7    8   14      |NE  23   29   26   27   25   26   29   25   26   28    25
 MEDI |    6   13    6   10    9    4    9    7    8   15      |MD  18   25   22   22   19   20   25   21   21   25    19

Table 3.2144.6   GPS week: 2144   Day: 6   MJD: 59258.000                            

        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  |    4    9    7    8    5    3    8    5    8   15    2 |    16   23   21   18   18   19   23   16   19   42    18
   2  |    6   13    7    8    7    3   10    7   10   16    3 |    17   20   19   24   18   20   20   21   19   46    18
   3  |    5   15    7   15    8    5   10    6   10   18    3 |    17   21   21   22   18   19   21   17   19   44    17
   4  |    9   17    7   11   11    5   11    6   11   16    3 |    65   60   63   72   68   67   61   66   64   63    65
   5  |    5   11    8    9   13    4    9    5   10   16    3 |    21   30   22   25   26   23   25   24   28   46    23
   6  |    5    9    7    7    6    3    7    7    9   13    2 |    19   24   23   24   21   22   25   23   21   47    22
   7  |    5    9    5    8    8    2    9    5    7  ---    2 |    37   44   40   39   33   38   44   39   41  ---    39
   8E |    8   18    5   24   11    4   10    6   14   16    4 |    16   20   17   23   19   15   19   16   17   42    15
   9  |    5    8    7    8    6    4    8    4    7  ---    2 |    38   44   40   39   37   40   43   37   39  ---    39
  10  |    6   12    7   10    6    4   10    8    9   18    3 |    22   24   26   25   23   24   26   24   22   43    23
 X11  |    7   14  ---   12   12    7   10    6   14  ---    4 |    18   26  ---   18   19   20   24   17   21  ---    18
  12  |    5   21    6    6   15    3   10    9    9   17    3 |    36   45   36   38   33   36   42   37   39   49    37
  13  |    5   14    5   11    7    3   10    6   10   22    3 |    18   26   21   21   20   20   30   22   18   45    21
  14  |    5   13   10    8    8    5    8    8    9   76    3 |    65   58   59   69   69   64   60   68   64   88    64
  15  |    6   15    6   10   15    4   10    7    6   19    3 |    29   29   29   31   30   30   31   29   29   45    29
  16  |    5   23    3    7   13    4    9    6   10  ---    3 |    21   28   23   25   26   23   23   25   24  ---    22
  17E |    9   17    8    9    9    3   10    6   10   17    3 |    64   61   59   63   62   61   60   61   59   67    61
  18  |    7   11    9    9    8    6    9    6   11   18    3 |    55   59   57   56   57   55   57   58   57   67    57
  19E |   11   17    7   13   10    4   12    7    9   19    4 |    30   36   37   33   29   36   39   37   39   39    34
  20  |    7   11    4    7    8    4    9    6   11   16    3 |    19   21   19   22   19   20   21   22   19   43    19
  21  |    6   13    4   10    7    3    8    6   11   19    3 |    13   21   15   20   15   16   19   14   17   41    15
  22  |    5   18    6   13   11    3   10    6    9   16    3 |    13   24   17   24   16   17   20   16   19   42    16
  23  |   10   15   12   11   10    7   10   10   16   19    4 |   118  117  116  115  114  115  117  116  121  118   116
  24  |    4   10    7   10    7    4   10    8    8   23    3 |    16   28   21   16   16   19   29   16   19   40    18
  25  |    6    8    8    5   11    2   11    5    7   16    3 |    16   21   19   18   20   17   23   16   15   40    16
  26  |    4    8    7    6    9    4    9    6   12  ---    2 |    16   22   18   18   16   16   23   16   16  ---    16
  27E |    6   17    6   13    9    3   12    6    9   17    3 |    16   23   18   16   12   16   21   17   17   43    15
  28  |    5   13    6    7    7    3    8    6    6   18    2 |    23   26   19   22   21   22   22   24   22   41    21
  29E |    5   22   10    7   15    4    7    5   12   20    3 |    93   94   95   95   93   95   94   94   94  104    94
  30  |    5   12    5   10    8    3   11    6    6   25    3 |    15   28   20   14   13   17   28   17   19   46    18
  31  |    5    9    6    6    9    3    9    6    6   22    2 |    38   44   40   38   36   39   46   37   42   42    39
  32  |    7   11    7    7    9    4   10    5    7   15    2 |    36   39   39   36   32   35   38   34   36   33    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   14    7   10   10    4   10    6   10   23      |T   32   37   34   34   32   33   36   33   34   52    33
 WRMS |    6   14    7   11   10    4   10    6    9   17      |NE  30   35   32   32   30   31   34   31   32   50    31
 MEDI |    5   13    7    9    9    4   10    6    9   18      |MD  21   28   23   24   21   22   26   24   22   44    22



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components. See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.2144   GPS week: 2144   MJD: 59252.0-59258.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |U    8    11    22 |U   12    15    41 |U    8    12    25 |
emr | emr 3058 |U   17    12    29 |U   17    18    61 |U   18    21    37 |
esa | esa 2976 |    13    18    32 |U   14    14    46 |    13    15    28 |
gfz | gfz 3072 |U    8    10    21 |U   12    14    39 |U   10    11    21 |
grg | grg 3070 |U    8    13    24 |U   12    18    44 |    11    11    27 |
igr | igr 3072 |     9    11    20 |    12    13    40 |    10    12    21 |
igs | igs 3072 |     9    11    21 |    12    13    41 |     9    12    20 |
jpl | jpl 3072 |U   15    16    27 |U   14    14    49 |    14    19    30 |
mit | mit 3072 |U    7     9    23 |U   12    13    40 |U    8    10    21 |



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 5.2144.0   GPS week: 2144   Day: 0   MJD: 59252.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    13    10    22 |     9    12    33 |     7    11    20 |
emr | emr 3072 |    24    11    31 |    13    12    66 |    16    17    34 |
esa | esa 2976 |    16    16    32 |    10    11    42 |    13    13    31 |
gfz | gfz 3072 |    12    10    19 |     8    12    31 |     9     9    16 |
grg | grg 3072 |    13    11    23 |     9    16    28 |    13    12    24 |
igr | igr 3072 |    14    10    21 |     9    11    35 |     9    10    18 |
igs | igs 3072 |    14    10    21 |     8    11    36 |     8    11    17 |
jpl | jpl 3072 |    19    14    29 |    11    11    47 |    13    17    32 |
mit | mit 3072 |    12     9    21 |     8    15    32 |    10     8    19 |

Table 5.2144.1   GPS week: 2144   Day: 1   MJD: 59253.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     7    10    20 |    13    13    39 |     9    13    32 |
emr | emr 3072 |    15     9    31 |    19    16    64 |    18    24    33 |
esa | esa 2976 |    12    17    32 |    14    13    43 |    14    17    35 |
gfz | gfz 3072 |     6    10    18 |    12    13    34 |    10    14    30 |
grg | grg 3072 |     8    11    21 |    13    18    39 |    10    14    29 |
igr | igr 3072 |     8    10    20 |    13    12    41 |    11    15    27 |
igs | igs 3072 |     8     9    19 |    13    11    42 |     9    14    27 |
jpl | jpl 3072 |    15    12    26 |    15    11    52 |    14    21    35 |
mit | mit 3072 |     6     9    20 |    12    12    37 |     8    11    22 |

Table 5.2144.2   GPS week: 2144   Day: 2   MJD: 59254.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     7    10    25 |    20    26    81 |     7    12    20 |
emr | emr 2976 |    20    14    29 |    24    34    71 |    17    27    38 |
esa | esa 2976 |    12    20    36 |    22    23    74 |    12    14    26 |
gfz | gfz 3072 |     8    11    25 |    20    24    81 |     9    12    21 |
grg | grg 3065 |     8    13    29 |    19    24    79 |    10    12    22 |
igr | igr 3072 |     8    12    23 |    18    20    71 |     9    13    19 |
igs | igs 3072 |     8    11    23 |    19    22    78 |     8    12    18 |
jpl | jpl 3072 |    15    16    28 |    22    23    72 |    14    19    31 |
mit | mit 3072 |     6     8    25 |    20    21    79 |     8    11    19 |

Table 5.2144.3   GPS week: 2144   Day: 3   MJD: 59255.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7    13    24 |     9    10    26 |     8    12    23 |
emr | emr 3072 |    19    12    30 |    15    15    57 |    18    20    32 |
esa | esa 2976 |    12    20    34 |    10    11    36 |    13    14    25 |
gfz | gfz 3072 |     7    11    24 |    10     9    24 |    10    11    19 |
grg | grg 3071 |     8    17    27 |    10    15    37 |    11    12    22 |
igr | igr 3072 |     8    12    23 |     9     8    28 |    10    13    18 |
igs | igs 3072 |     7    13    23 |     9     9    27 |     9    12    18 |
jpl | jpl 3072 |    14    16    32 |     9    10    41 |    14    20    25 |
mit | mit 3072 |     6     9    25 |     8     8    25 |     8    11    21 |

Table 5.2144.4   GPS week: 2144   Day: 4   MJD: 59256.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     8    11    23 |    15    14    40 |     9    11    27 |
emr | emr 3072 |    15    15    32 |    18    19    66 |    19    20    54 |
esa | esa 2976 |    13    21    32 |    13    15    49 |    14    14    29 |
gfz | gfz 3072 |     9    11    24 |    14    16    39 |     9    10    19 |
grg | grg 3072 |     9    13    23 |    13    21    48 |    11     8    28 |
igr | igr 3072 |     9    12    21 |    13    13    40 |    10    10    22 |
igs | igs 3072 |     9    12    22 |    13    14    41 |    10    10    21 |
jpl | jpl 3072 |    16    21    29 |    14    16    45 |    16    16    33 |
mit | mit 3072 |     8     8    23 |    13    14    41 |     8     9    19 |

Table 5.2144.5   GPS week: 2144   Day: 5   MJD: 59257.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7     9    20 |    11    15    30 |     8    13    28 |
emr | emr 3072 |    14    11    23 |    14    11    46 |    17    18    30 |
esa | esa 2976 |    12    16    31 |    12    12    34 |    14    17    27 |
gfz | gfz 3072 |     7     9    18 |    10    12    26 |    12    14    23 |
grg | grg 3072 |     7    11    22 |    10    17    30 |    12    15    37 |
igr | igr 3072 |     8     9    17 |    11    13    28 |    11    13    21 |
igs | igs 3072 |     8     9    17 |    11    12    27 |    10    14    22 |
jpl | jpl 3072 |    15    16    22 |    13    10    34 |    15    18    28 |
mit | mit 3072 |     6    10    18 |    10    13    26 |     8    10    22 |

Table 5.2144.6   GPS week: 2144   Day: 6   MJD: 59258.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     6    12    22 |    11    13    35 |     8    12    22 |
emr | emr 3072 |    12    13    30 |    13    16    55 |    18    21    38 |
esa | esa 2976 |    11    18    32 |    14    14    43 |    12    14    24 |
gfz | gfz 3072 |     6    11    22 |    12    12    35 |     9     9    18 |
grg | grg 3072 |     6    14    28 |    10    12    47 |    10     8    28 |
igr | igr 3072 |     7    14    19 |    12    13    36 |    10    12    20 |
igs | igs 3072 |     6    12    20 |    11    12    38 |     9    11    18 |
jpl | jpl 3072 |    13    18    25 |    13    13    50 |    14    18    25 |
mit | mit 3072 |     5    10    25 |    12    11    37 |     8     9    21 |


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 6.2144   GPS week: 2144   MJD: 59252.500-59258.500

                                                         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 |     -20     -12     131    -120      0 |       8     13
            |      16      19      60      44      4 |       2
emr   uuuuu |     -19     -18    -296     214     -1 |      34     35
            |      16      25     144      92      6 |       3
esa   uuuuu |       7       6       6      81     -3 |      35     36
            |      16      15      35     123      5 |       3
gfz   uuuuu |     -18     -22     152    -130     -3 |      17     19
            |      11      26      78      91      1 |       4
grg   uuuuu |      -4       1      97     -86     -3 |       7     11
            |      16      14      34      74      3 |       3
igr   xxxxx |      -2      -1      20     -13     -2 |       3     10
            |      11       5      48      40      3 |       3
irf   xxxxx |      -3     -12      21      -2      0 |       2     10
            |       4       7       7      22      3 |       2
jpl   uuuuu |      -4      29     -89     -40      7 |      30     32
            |      11      13      49      71      3 |       1
mit   uuuuu |       9      -9      -7      47      4 |      13     16
            |      12      10      22      59      6 |       1
ngs   uuuuu |      38      26    -160     101      0 |      11     14
            |      22      22      93     177      3 |       3
sio   xxxxx |      40     -35     265    -436      9 |       9     14
            |      39      81      84     176     10 |       2


Table 7.2144.0   GPS week: 2144   Day: 0   MJD: 59252.500

                                                         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 |     -26      -8     111    -174      0 |      10     16
emr   uuuuu |     -34     -10    -431      96     -4 |      36     39
esa   uuuuu |      17       1     -21     190    -10 |      38     40
gfz   uuuuu |     -21     -21     238     -68     -4 |      21     23
grg   uuuuu |     -17      -6      59     -62     -6 |      10     16
igr   xxxxx |       9      -4      68      -1     -3 |       5     13
irf   xxxxx |      -7     -19      21     -11      0 |       3     12
jpl   uuuuu |      -1      43    -127     -93      1 |      31     33
mit   uuuuu |      12     -15      13     -31     10 |      12     17
ngs   uuuuu |      39      21     -84     177      1 |      13     18
sio   xxxxx |      17      34     286    -477     -2 |      11     18

Table 7.2144.1   GPS week: 2144   Day: 1   MJD: 59253.500

                                                         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 |     -43      -9     156    -163      0 |       8     14
emr   uuuuu |      -8      17    -547     190     -3 |      33     35
esa   uuuuu |      21     -10       0     177     -3 |      36     37
gfz   uuuuu |     -17     -45     201     -49     -5 |      19     21
grg   uuuuu |     -12       9     135    -137     -4 |       7     13
igr   xxxxx |      -1      -2      52      -3     -1 |       3     12
irf   xxxxx |      -3     -18      28     -31      3 |       1     10
jpl   uuuuu |      -4      41    -153     -65      9 |      29     31
mit   uuuuu |       6     -13      25     -40      7 |      11     15
ngs   uuuuu |      62      35    -152     207     -1 |      12     16
sio   xxxxx |      51       6     274    -495     13 |       7     13

Table 7.2144.2   GPS week: 2144   Day: 2   MJD: 59254.500

                                                         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 |       2      24     133    -117     -3 |       9     14
emr   uuuuu |     -27     -24    -296     166      1 |      34     36
esa   uuuuu |      20       0      48     199     -2 |      36     37
gfz   uuuuu |     -10     -51     228    -188     -2 |      18     21
grg   uuuuu |     -10      10      84     -68     -4 |       7     13
igr   xxxxx |       2      -6      24     -32     -1 |       4     12
irf   xxxxx |       0     -15      11      10      4 |       3     10
jpl   uuuuu |      -3      30    -131    -115     12 |      30     32
mit   uuuuu |      -2     -24     -23      56     11 |      12     16
ngs   uuuuu |       1      28    -222      26     -3 |      12     16
sio   xxxxx |      55     -53     346    -387      3 |       9     15

Table 7.2144.3   GPS week: 2144   Day: 3   MJD: 59255.500

                                                         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 |     -13     -17     111     -78     -1 |      11     14
emr   uuuuu |     -37     -23    -169     174      3 |      37     38
esa   uuuuu |      18      16      63     123     -4 |      37     38
gfz   uuuuu |     -25     -49     179    -228     -6 |      19     21
grg   uuuuu |      13       7      67       1      1 |       9     12
igr   xxxxx |      -4      -5     -18      40     -2 |       6     11
irf   xxxxx |      -4     -14      17      20     -3 |       5      9
jpl   uuuuu |      -6      21     -28      57      7 |      32     34
mit   uuuuu |       7      -9     -41      99      5 |      15     18
ngs   uuuuu |      15      45    -291    -160     -3 |      14     16
sio   xxxxx |      52     -12     106    -317     -2 |      11     15

Table 7.2144.4   GPS week: 2144   Day: 4   MJD: 59256.500

                                                         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 |      -7     -24     202    -143      7 |       9     13
emr   uuuuu |     -26     -55    -173     371    -13 |      35     37
esa   uuuuu |      -1       7      -3      40     -5 |      35     36
gfz   uuuuu |      -2      -3      47       4     -3 |      16     19
grg   uuuuu |       3      16     116     -50     -4 |       7     11
igr   xxxxx |     -26       5     -65      16     -6 |       3     10
irf   xxxxx |      -9     -12      18       8     -2 |       3      9
jpl   uuuuu |     -27       5     -35     -78      6 |      30     32
mit   uuuuu |      -4      -9     -18      94      3 |      14     17
ngs   uuuuu |      49      49    -219     -80     -1 |      11     14
sio   xxxxx |      42    -190     321    -183      9 |       9     14

Table 7.2144.5   GPS week: 2144   Day: 5   MJD: 59257.500

                                                         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 |     -39     -15     183     -52      3 |       6      9
emr   uuuuu |       3     -37    -268     202      7 |      31     32
esa   uuuuu |     -16      -8     -20     -88      6 |      31     33
gfz   uuuuu |     -17      -1      71    -164     -2 |      12     14
grg   uuuuu |     -24      -3      75    -228     -5 |       4      8
igr   xxxxx |      -3       1      14     -84      2 |      -1      8
irf   xxxxx |       1      -8      22     -30     -3 |       0      9
jpl   uuuuu |       7      37     -69     -48      6 |      29     30
mit   uuuuu |      32      -4       1      60     -4 |      12     15
ngs   uuuuu |      51      21    -138     333      5 |       8     10
sio   xxxxx |      95      45     318    -751     15 |       7     12

Table 7.2144.6   GPS week: 2144   Day: 6   MJD: 59258.500

                                                         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 |     -16     -39      20    -116     -5 |       6      9
emr   uuuuu |      -5       8    -189     300      1 |      29     31
esa   uuuuu |     -11      32     -24     -73     -1 |      31     32
gfz   uuuuu |     -38      13     101    -217     -3 |      12     14
grg   uuuuu |      18     -26     143     -59      2 |       2      6
igr   xxxxx |       5       6      65     -25     -2 |      -2      8
irf   xxxxx |       1       0      32      22     -1 |       0      9
jpl   uuuuu |       3      28     -83      59     10 |      28     30
mit   uuuuu |      13       8      -5      89     -3 |      12     15
ngs   uuuuu |      51     -18     -14     205      3 |       7     10
sio   xxxxx |     -32     -77     205    -446     25 |       8     13


More information about the IGSREPORT mailing list