[IGSREPORT-27898] Wk 2153 IGS Final Orbits

acc acc at igs.org
Fri Apr 30 04:10:05 UTC 2021


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2153   (Apr 11, 2021 - Apr 17, 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:

igs2153[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2153[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2153[0-6].cls  IGS GPS clock combination summary report.
igs21537.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs21537.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   | ANKR LPGS TIXI LPGS TIXI
                0  |  EMR   | 10 YELL
                0  |  ESA   | IQAL LPGS PTBB IQAL LPGS PTBB
                0  |  GFZ   | 10 10
                0  |  GRG   | HOB2 SVTL HOB2 SVTL
                1  |  COD   | CEDU CHTI FAA1 IQAL KARR KERG LPGS MAJU NIST NKLG
                1  |  COD   | POVE SCUB SEYG SGOC STK2 SYOG THTI TIXI TOW2 YKRO
                1  |  COD   | TIXI
                1  |  EMR   | 24 NIST
                1  |  ESA   | PTBB LPGS PTBB
                1  |  GFZ   | ANKR HERS MAYG ANKR HERS MAYG
                1  |  GRG   | 13 13 HOB2 SVTL SYOG HOB2 SYOG
                1  |  JPL   | NRIL SVTL ZECK NRIL ZECK
                1  |  MIT   | 24 24
                2  |  COD   | BOGT BRAZ CRO1 DGAR FAA1 HOB2 KOUR LPGS NIST NKLG
                2  |  COD   | POVE SALU SAVO SCUB SYOG THTI TIXI UFPR USUD DGAR
                2  |  COD   | GODE LPGS TIXI
                2  |  EMR   | USUD
                2  |  ESA   | IRKJ LPGS PTBB SYOG GODE IRKJ LPGS PTBB SYOG
                2  |  GFZ   | DGAR GODE SYOG DGAR GODE IRKJ
                2  |  GRG   | CCJ2 IRKJ CCJ2 DGAR IRKJ SYOG
                2  |  JPL   | BADG IQAL BADG IQAL MCM4 SVTL SYOG
                2  |  MIT   | GODE
                3  |  COD   | ASPA BOGT FLIN GMSD IRKJ JOG2 LPGS NYA2 SCUB SGOC
                3  |  COD   | TIXI FLIN TIXI
                3  |  EMR   | 21 LPGS
                3  |  ESA   | 21 21 PTBB RAMO PTBB
                3  |  GFZ   | MDVJ SCH2 IRKJ JOG2 SCH2
                3  |  GRG   | 21 21 FLIN HOB2 IRKJ TRO1 FLIN IRKJ TRO1
                3  |  JPL   | RAMO
                4  |  COD   | ASPA AUCK CPVG DARW DAV1 DRAO MAJU MDVJ MKEA NIST
                4  |  COD   | PIMO SAVO SCUB TIXI WARK IRKJ MDVJ MKEA TIXI
                4  |  EMR   | NIST
                4  |  ESA   | DAV1 DRAO FAIR PTBB ANKR DAV1 DRAO FAIR PTBB
                4  |  GFZ   | AREQ DRAO IRKJ
                4  |  GRG   | CCJ2 JOG2 LHAZ SVTL JOG2 LHAZ SVTL
                4  |  JPL   | POLV AREQ CPVG POLV
                5  |  COD   | SUWN TIXI WTZR WTZR
                5  |  EMR   | TLSE HOB2 IRKJ TLSE
                5  |  ESA   | HOB2 KIT3 HOB2 KIT3
                5  |  GFZ   | HOB2 HOB2 JOG2 SUWN
                5  |  GRG   | 13 13 CCJ2 HOB2 IRKJ MAW1 SVTL SYOG CCJ2 IRKJ KIT3
                5  |  GRG   | SVTL TLSE
                5  |  JPL   | MCM4 NRMD CHUR DAV1 MAG0 MCM4 NRIL NRMD NYA2
                5  |  MIT   | WTZR
                6  |  COD   | DAV1 TIXI TRO1 DAV1 TIXI
                6  |  EMR   | TLSE CHUR FAIR NIST TLSE WHIT
                6  |  ESA   | DAV1 FAIR FLIN HOFN KIRU PTBB DAV1 FAIR FLIN HOFN
                6  |  ESA   | KIRU PTBB
                6  |  GFZ   | DAV1 MDVJ DAV1 KOUR MDVJ
                6  |  GRG   | 13 13 IRKJ SVTL
                6  |  JPL   | POLV ASPA MCM4 POLV TRO1 WHIT

 5. 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.

 6. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                3  |  GFZ   |  24
                4  |  COD   |   6
                4  |  JPL   |   6

 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 G01 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |
           PRN G06 |  4 |  4 |  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 |     .3     .0     .4       4      1     -2    -.22
       EMR  |   0 |   -3.1    3.9   -6.5      -3     -6      2     .20
       ESA  |   0 |     .4   -1.2    -.3     -26     22      6    -.06
       GFZ  |   0 |    -.4    -.6     .0       6      8     24    -.07
       GRG  |   0 |    4.3     .4    1.6      16     -9     -6     .08
       JPL  |   0 |    1.0     .8    2.2       5    -10    -11     .03
       MIT  |   0 |    -.7    8.6   -6.0       3     20     -6     .26
       NGS  |   0 |   -4.7    3.6   -9.6       3     68     17     .16
       SIO  |   0 |    -.6    6.4    6.9     154     -3      0    -.04

       COD  |   1 |     .2    -.1     .3       2      3      1    -.15
       EMR  |   1 |    -.9    -.7   -3.0      -1      2     18     .18
       ESA  |   1 |    -.2    -.7     .5     -39     17     18    -.11
       GFZ  |   1 |    -.4    -.7     .4       6     14     31     .0 
       GRG  |   1 |    5.2   -2.1    6.2       6    -11     -5     .01
       JPL  |   1 |    1.7   -4.2    2.4      -6     -3    -13    -.39
       MIT  |   1 |    3.3    3.7   -1.8     -12     20      3     .31
       NGS  |   1 |    1.4   -2.9   -2.1       4     29     -7     .06
       SIO  |   1 |    4.1    1.4    2.6      47    -70     22     .05

       COD  |   2 |     .1     .1     .4       3      1      0    -.07
       EMR  |   2 |    -.0   -5.4   -5.7       2     -5     12     .22
       ESA  |   2 |     .3    -.7     .2     -38     12     17     .04
       GFZ  |   2 |    -.3     .0    -.2       7     -1     19     .20
       GRG  |   2 |    4.9   -2.1    5.8     -13    -22     -3     .22
       JPL  |   2 |   11.9   -6.8    9.9       0     -6     -5    -.26
       MIT  |   2 |    3.8    2.4     .4     -13     13      5     .39
       NGS  |   2 |    8.6   -6.0    2.7     -15    -24    -51     .27
       SIO  |   2 |    6.0    2.1    9.5      78   -100     43     .05

       COD  |   3 |     .1     .1     .3       8      0      4    -.09
       EMR  |   3 |   -3.2   -1.2   -4.5     -11      1      3     .34
       ESA  |   3 |     .3    -.6    -.1     -45     17     16     .11
       GFZ  |   3 |    -.5     .0    -.6       8      4     19     .28
       GRG  |   3 |    4.0   -4.4    -.5       2    -21      2     .16
       JPL  |   3 |    4.6  -11.3    6.4       2      9     -7     .03
       MIT  |   3 |    1.3     .6   -1.6     -13     28     11     .41
       NGS  |   3 |    4.1   -3.7    -.0      -6      8    -23     .27
       SIO  |   3 |    1.4    1.4    8.6      61    -36     64     .22

       COD  |   4 |     .2    -.0     .1       3      0      2    -.17
       EMR  |   4 |   -5.9   -9.4   -5.0     -28     -4      0     .07
       ESA  |   4 |     .2    -.7    1.5     -27     10     18    -.05
       GFZ  |   4 |    -.2    -.5     .3      -5      7      8     .04
       GRG  |   4 |     .2   -7.7   -9.6      -6    -22     -2     .14
       JPL  |   4 |   -2.1  -11.6    1.0       1      1      3     .23
       MIT  |   4 |     .1   -2.1   -2.3     -21     36     -1     .29
       NGS  |   4 |    -.9   -5.2   -2.5     -31     24    -26     .21
       SIO  |   4 |   -1.4   -3.0   12.3     -30     15     40     .14

       COD  |   5 |     .2    -.1     .4       3      1     -2    -.23
       EMR  |   5 |   -4.1   -7.6   -9.8     -18     10    -12     .23
       ESA  |   5 |     .2    -.8    1.3     -28     17      9     .10
       GFZ  |   5 |    -.2    -.0     .4      -3      3     12     .16
       GRG  |   5 |    1.6   -7.2   -4.6       0    -24     -4     .10
       JPL  |   5 |   -5.6  -16.6    2.6      -1     -4     -5     .16
       MIT  |   5 |    -.5   -2.3    1.0     -18     30      8     .25
       NGS  |   5 |   -1.3   -6.5   -5.4     -63     30      6     .51
       SIO  |   5 |   -2.2     .4   10.8      24     22     69     .15

       COD  |   6 |     .3     .0     .3       4      2      3    -.19
       EMR  |   6 |    -.1   -7.7   -2.9       0     -6      1     .27
       ESA  |   6 |    -.1    -.6    1.0     -17      5     17    -.13
       GFZ  |   6 |    -.3    -.1     .2       4      7     15    -.02
       GRG  |   6 |    1.5   -6.2   -3.5       5    -30      6     .01
       JPL  |   6 |    -.3  -10.3    4.1      12      0      6     .08
       MIT  |   6 |    1.7    2.3   -3.7     -16     14     14     .23
       NGS  |   6 |    4.0   -4.4    8.5     -14    -28     -3     .22
       SIO  |   6 |    5.4    1.1   12.0      37   -126     89     .12


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 1.2153.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2153.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 2.2153.[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 3.2153.[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 5.2153.0-6). 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 2153 summary.                       (Apr 11, 2021 - Apr 17, 2021)

Table 1.2153.a   GPS week: 2153   MJD: 59315.000-59321.000

         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  731|    0     0     2    -5    -6    -8  -.55    7    7 |    -745     326      6     88
        |    0     0     0    22    13     8   .03           |     168     400
emr   80|   -4     1    -1     0     4    -3   .13   12   12 |  180233    -107     13     92
        |    1     1     1    21    19    13   .02           |    9446     870
esa  150|   -1     0    -1     6     3     2   .07    7    7 |    -949     475      6     86
        |    0     0     1    21    10     8   .02           |     139     399
gfz  240|    0     1     3    -1     4    -8   .16   10   10 |      54    -138     10     75
        |    0     0     1    28    18     5   .03           |     189     328
grg  108|    1    -1     0    -6    -8     3  -.04   10    9 |      36     -71      8    115
        |    0     0     3    19    20    11   .01           |     156     219
igr  n/a|    0     0     0     2   -12   -17   .10    4    4 |    3157    -229     10     75
        |    0     0     0    13    19    13   .01           |     708     904
jpl   80|    0     0     2     3   -12    -1   .22    8    8 |     525    -104      8     87
        |    1     1     1    24    17    18   .02           |     697     875
mit  354|    0     0    -2   -20     4     0   .07    6    6 |    5292   -4111     27   1503
        |    0     0     1    30    30    12   .02           |    5052    7102
ngs  210|    0     0     1    11    22   -16   .04    9    9 |    -934     138    818   1673
        |    1     0     2    30    12    15   .03           |     727     750
sio  418|    1     0    -1    27   -20    32   .05    8    8 |     ---     ---    ---    ---
        |    0     0     2    78    30    28   .01           |     ---     ---


Table 1.2153.b   GPS week : 2153   MJD: 59315.000-59321.000   

         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    5    4    3 |
   2  |    3    3    3    3    4    3    3 |
   3  |    3    3    3    3    3    3    3 |
   4  |    4    3    3    3    3    3    3 |
   5  |    3    3    3    3    3    3    3 |
   6  |    3    3    3    3   15    3    3 |
   7  |    3    3    3    4    3    3    4 |
   8  |    4    3    3    3    3    3    3 |
   9  |    3    3    3    3    3    3    3 |
  10  |    3    3    3    2    3    3    3 |
  12  |    3    3    3    3    3    3    4 |
  13  |    3    3    3    3    3    3    3 |
  14  |    3    3    3    3    3    3    3 |
  15  |    3    3    4    3    3    3    3 |
  16  |    3    3    3    3    3    3    3 |
  17  |    2    2    3    2    3    3    3 |
  18  |    5    5    5    5    5    5    5 |
  19  |    3    3    3    3    3    3    3 |
  20  |    3    3    3    3    3    3    3 |
  21  |    4    4    3    3    4    4    3 |
  22  |    3    3    2    3    3    3    3 |
  23  |    4    4    4    4    4    4    4 |
  24  |    3    5    9    4    5    5    5 |
  25  |    3    3    3    3    3    3    3 |
  26  |    3    2    3    3    3    3    2 |
  27  |    3    3    3    3    3    3    3 |
  28  |    2    3    2    3    3    3    3 |
  29  |    4    4    4    4    4    4    4 |
  30  |    3    3    3    3    3    3    3 |
  31  |    3    3    3    3    3    3    4 |
  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 2.2153.0   GPS week: 2153   Day: 0   MJD: 59315.000                            

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  731|    0     0     3    10    18    -5  -.52    6    6 |    -641     364      6     85
emr   80|   -5     1     0    18    20    20   .13   12   12 |  176690    -411     12     75
esa  150|   -1     0    -1    23     5    -9   .07    7    7 |    -884     142      7     89
gfz  243|    0     0     2    -1   -13    -3   .16    8    8 |       6    -309     12     76
grg  108|    2     0     1    19     3     0  -.03   11   10 |      87    -353      8    104
igr  n/a|    0     0     0     0     1    -6   .10    4    4 |    3031    -430      9     73
jpl   80|    0     0     1     8   -10    30   .24    8    8 |     418    -562      8     82
mit  354|    0     0    -2   -34   -29    -6   .09    6    6 |    2706    -348     27   2132
ngs  214|   -1     1    -1    -2    25     0   .02    8    8 |    -754     405    826   1864
sio  414|    0     0     0   -18    -2   -13   .03    8    8 |     ---     ---    ---    ---

Table 2.2153.1   GPS week: 2153   Day: 1   MJD: 59316.000                            

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  729|    0    -1     2    21   -11    -7  -.51    6    6 |    -645    -214      7     89
emr   80|   -5     0    -2    11    21    -1   .08   12   12 |  201580   -1035     13     88
esa  150|   -1     0    -2     8    -1    13   .09    7    7 |    -952      49      7     93
gfz  241|    0     1     3     2   -11   -16   .16    9    9 |      67      11     10     70
grg  105|    1     0     4     7     6    18  -.05   11   10 |     241    -178      9    119
igr  n/a|   -1     0    -1     9   -11   -29   .12    5    5 |    3419   -1337     11     82
jpl   80|   -1     0     1     5    -1    -7   .23    9    9 |     600    -988      9    128
mit  354|    0     0    -2    -8    13    19   .07    6    5 |    6620  -13397     26   1167
ngs  207|    1     0     0     6     8   -27   .07    8    8 |    -750       8    790   1521
sio  419|    1     0    -4   -66   -22     4   .05    8    7 |     ---     ---    ---    ---

Table 2.2153.2   GPS week: 2153   Day: 2   MJD: 59317.000                            

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  726|    0     0     1     4    -5    -3  -.54    6    6 |    -940     767      6     86
emr   80|   -2     1    -2     4   -13    -4   .14   12   12 |  175507     249     13     92
esa  150|   -2     0    -2     9    -7     2   .07    8    8 |   -1177     335      6     83
gfz  241|   -1     0     5    40   -12   -11   .13   10   10 |    -176     201     11     81
grg  110|    1     0     1   -13    -3     2  -.03    9    8 |    -221     171      8    123
igr  n/a|   -1     0    -1     1   -15   -38   .12    5    5 |    2104     356     10     67
jpl   80|    1    -1     2    -2   -24    -3   .22    8    8 |    -466     482      9     79
mit  354|    0     0    -3   -32    25     2   .09    6    5 |   16196  -15427     34   1330
ngs  208|    1     0     2    22    11   -23   .05    9    9 |    -962     715    710   1640
sio  417|    1     0    -2     6    -5    38   .06    8    8 |     ---     ---    ---    ---

Table 2.2153.3   GPS week: 2153   Day: 3   MJD: 59318.000                            

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  726|    0     0     1     5   -25   -26  -.56    8    8 |    -605     528      7     89
emr   80|   -5     2     0   -31    21    -2   .13   12   12 |  175837    1187     14     82
esa  150|   -1     0    -2   -17    13    14   .04    7    7 |   -1018    1047      7    100
gfz  243|   -1     1     3   -12    31   -10   .14    9    9 |    -167       3     10     71
grg  111|    1    -1    -1   -14    15     2  -.04    9    9 |     -88     145      8    104
igr  n/a|    0     0     0   -17     1   -12   .08    4    4 |    2561     954      9     77
jpl   80|    0     0     3   -33    12     9   .21    8    8 |      49     955      9     77
mit  354|    0     0    -2    -4   -39     0   .06    7    7 |    1675    1253     33   1364
ngs  212|    0     1     0    -5    33   -17  -.01    8    8 |   -2518   -1276    749   1641
sio  414|    1     0    -1   134   -63    38   .05   10    9 |     ---     ---    ---    ---

Table 2.2153.4   GPS week: 2153   Day: 4   MJD: 59319.000                            

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    -8    -5     0  -.54    7    7 |   -1031     685      7     85
emr   80|   -4     0    -1    18   -22   -12   .11   12   12 |  177562    -549     13    104
esa  150|   -1     1     0    35    -8    -1   .07    8    8 |    -855     752      8     74
gfz  240|    0     2     3    24    -2     0   .20   10   10 |     316    -344     10     70
grg  108|    2    -2    -7    -3   -43     1  -.07   10   10 |      67     -27      9    127
igr  n/a|    0     0     0    24   -38   -19   .12    5    5 |    4071    -971     12     76
jpl   80|    0    -2     2    26   -26     8   .19    8    8 |    1465   -1091      8     80
mit  354|    0     0     0   -78    44     0   .05    6    5 |    3534    -780     25   1301
ngs  210|    0     1     0   -31    30   -41   .05   10   10 |    -549    1001    924   1696
sio  423|    0     0     2    86   -18    34   .04    9    9 |     ---     ---    ---    ---

Table 2.2153.5   GPS week: 2153   Day: 5   MJD: 59320.000                            

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     2   -35   -12   -10  -.57    8    8 |    -705    -225      7     88
emr   80|   -5     3     0   -32    -9    -2   .15   11   11 |  176801     796     15    101
esa  150|   -1     0     0   -25     1     0   .09    7    8 |   -1017     846      7     76
gfz  242|    0     1     3   -49    15   -10   .16   10   11 |      71     173     10     75
grg  109|    1    -1    -2   -41   -25    13  -.05   11   11 |      -3      77      8    111
igr  n/a|    0     0     0    -9   -35     0   .10    4    4 |    2985     718     10     78
jpl   80|    0    -2     4   -16   -37   -27   .20    8    8 |     235     923      9     74
mit  354|    1     0    -3     2    -3   -19   .05    6    6 |    2626     731     22   1550
ngs  210|    0     1     0    64    38     2   .02    9    9 |    -308    -258    693   1524
sio  421|    1     0    -3    96    24    69   .05    8    8 |     ---     ---    ---    ---

Table 2.2153.6   GPS week: 2153   Day: 6   MJD: 59321.000                            

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  740|    0    -1     2   -33    -7    -1  -.58    8    7 |    -652     379      7     95
emr   80|   -4     1    -2     3    15   -23   .15   12   12 |  177660    -988     14    103
esa  150|   -1     0     0    12    18    -1   .06    7    7 |    -743     155      5     93
gfz  233|    0     2     2   -13    19    -4   .18   11   11 |     261    -704     11     84
grg  110|    1    -1    -4    -3   -15   -18  -.03    9   10 |     174    -334      9    118
igr  n/a|   -1     0     0     9    13   -19   .10    5    5 |    3931    -899     10     74
jpl   80|    0     0     2    37     3   -16   .25    9    9 |    1378    -448      9     89
mit  354|    0     0    -4    11    17    10   .06    6    6 |    3691    -811     24   1679
ngs  214|    0     0     6    26     8   -10   .05    8    8 |    -698     374   1035   1827
sio  424|    1     0    -3   -48   -54    53   .04    8    7 |     ---     ---    ---    ---

       
       
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 3.2153.0   GPS week: 2153   Day: 0   MJD: 59315.000                            

        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   12    8   10   10    3    7    6    6    7    2 |   361  363  361  361  267  361  361  362  360  363   361
   2  |    6    9    8    9   10    5    9    6    7    9    2 |    32   34   29   34   36   33   34   37   35   37    33
   3  |    6   12    7    7   11    4    9    5    4    7    2 |    21   34   29   26   24   27   33   24   23   26    25
   4  |    8   17    8    9   14    5    9    7   12    6    3 |    71   68   69   75   73   68   69   67   75   68    70
   5  |    5    8    8    9    6    4    6    7    9   10    2 |    24   30   27   33   28   30   31   30   30   33    28
   6  |    8   10    7    8    9    5    8    7    7    7    2 |   772  543  772  770  545  770  771  774  772  772   773
   7  |    8   14    7    7   16    3    8    5    8    8    3 |    31   39   36   38   36   36   38   36   38   36    35
   8  |    8   14    8    9   11    4   10    9    9    9    3 |    30   37   35   33   35   34   38   33   33   35    32
   9  |    6   11    8    9   12    4    8    5    7    6    2 |    26   32   33   31   29   31   32   31   30   30    29
  10  |    5   16    7   10    7    4    8    5    4    9    2 |    25   40   31   29   29   30   35   29   28   29    29
  12  |    6   14    6    7    8    3    8    4    9   13    3 |    32   41   33   36   36   35   39   34   35   40    34
  13  |    7    9    5    8   12    5    9    6    9    7    2 |    24   32   29   31   28   30   34   29   27   29    27
  14  |    5    7    7    6    7    6    8    9    9    8    2 |    46   49   45   50   49   47   47   52   47   54    48
  15  |    7   12    7    9   10    4    7    5    5    8    2 |    56   62   58   59   52   58   60   55   55   56    56
  16  |    7   19    4    6    8    5    7    7    9    7    3 |    18   22   22   24   21   23   24   23   22   26    21
  17  |    5   12    5    5    9    3    4    6    6    8    2 |    42   47   45   47   45   47   47   46   44   49    45
 X18  |   11   16   14   10   17    5   10    5   10  ---    4 |    93   87   87   90   95   89   93   91   92  ---    90
  19  |    7   14    4    7   11    4    7    6    9   10    3 |    42   53   47   50   48   48   50   48   45   50    47
  20  |    7    8    8    8    7    4    6   10    7   13    3 |    85   83   83   83   82   84   84   81   83   82    83
  21  |    6   12    7   11   23    4    8   10    7    8    3 |    22   25   23   20   24   23   25   30   23   30    23
  22  |    5    7    7    8   12    4    6    4    6    6    2 |    24   31   30   29   25   28   31   26   26   29    27
  23  |    8   14    7   10    9    4   16    5    6   10    3 |    34   33   37   37   39   36   34   37   35   39    35
  24E |    7   11    8   12   11    4    7    4    8    6    3 |    31   36   34  125   34   37   35   35   38   14    35
  25  |    4    8    8    8   10    3    5    3    8   10    2 |    19   29   25   26   26   25   28   24   23   30    23
  26  |    6    8    8    6    6    4    8    6    7    7    2 |    24   29   29   31   27   31   32   27   27   28    27
  27  |    6   12    7    6   10    4    9    7   10   10    3 |    26   31   33   31   32   31   34   30   30   29    29
  28  |    5    8    4    6    6    3    7    7    7    6    2 |    20   31   26   27   25   27   32   26   28   27    25
  29  |    8   20    8   10   12    4   10    6   12    9    3 |    49   54   51   54   53   53   52   53   53   53    51
  30  |    5   12    8   12    9    4   11    6    8    8    3 |    51   57   54   54   55   55   57   56   54   58    54
  31  |    7   13    6    8   13    4    7    4   11    7    3 |    40   39   41   39   43   41   40   39   42   37    39
  32  |    5   10    6   11    7    3    7    4    5    9    2 |    20   28   30   31   27   29   30   28   25   28    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   12    7    8   11    4    8    6    8    8      |T   70   68   73   77   63   74   75   73   73   73    72
 WRMS |    6   12    7    8   10    4    8    6    8    8      |NE  77   73   80   81   68   80   82   80   80   81    79
 MEDI |    6   12    7    8   10    4    8    6    8    8      |MD  31   37   34   36   36   35   35   35   35   35    34

Table 3.2153.1   GPS week: 2153   Day: 1   MJD: 59316.000                            

        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   12    6    9   12    4    7    6    6    8    2 |   267  269  268  265  211  268  268  268  266  269   268
   2  |    6    9    8   13   11    5    9    6    7   12    3 |    16   20   17   23   20   18   19   20   22   27    18
   3  |    7    9    7    7   10    2    8    5    5    7    2 |    15   28   24   21   19   21   28   19   19   22    20
   4  |    9   15    8   10   11    6    9    6    9    5    3 |    50   50   50   55   53   49   49   50   51   50    50
   5  |    5   10    9    8    8    4    8    7    8    7    2 |    18   25   20   26   21   23   25   21   21   25    20
   6  |    6    9    8    9   10    5    8    6    9    8    2 |   602  468  601  598  470  599  601  603  604  603   602
   7E |    7   14    8   10    9    5    9    5   10    6    3 |    21   30   26   30   21   26   29   28   28   28    25
   8  |    6   12    7   10   11    3    9    7    9    8    3 |    18   25   26   25   26   24   26   23   23   27    23
   9  |    7   10    8    6   10    4    8    6    7    6    2 |    18   25   26   24   22   23   25   24   21   22    21
  10  |    6    9    7    8    6    5    8    5    6    6    2 |    16   26   23   20   17   21   28   20   22   23    20
  12  |    3   15    5    9    6    5    9    5    6   11    2 |    16   24   20   23   22   22   25   24   24   28    22
  13  |    6   10    7    8   13    5    9    6    6    8    2 |    12   21   18   20   18   19   24   17   19   17    16
  14  |    5   10    9    7    8    7   12    7    8   10    3 |    22   27   26   26   27   25   26   28   25   33    26
  15  |    7   10    7    8   12    6    8    6    6    9    2 |    46   50   48   52   44   50   50   46   50   46    47
  16  |    6   18    6    7    9    4    7    5    7    6    2 |    15   22   21   24   19   22   23   20   25   21    19
  17  |    4   11    5    7    9    4    6    5    8    7    2 |    19   27   24   28   26   26   26   24   28   27    24
 X18  |    9   18   16   14   17    6   10    6   15  ---    5 |    53   53   51   55   58   51   52   53   54  ---    52
  19  |    6   13    5   12    9    3    7    5    7    8    2 |    18   28   25   31   28   25   26   26   26   26    24
  20  |    7    8    8    9    8    6    7   10    7   11    3 |    84   84   84   84   82   85   85   83   87   83    83
  21  |    7   16    7   13   22    4    7    9   10   10    4 |    19   24   21   21   21   21   23   25   21   29    20
  22  |    6    7    7    8   12    4    7    4    6    7    2 |    19   25   24   24   19   23   26   21   23   25    21
  23  |    8   14    6   12    9    5   18    6    8    8    3 |    15   17   18   21   21   16   18   19   17   21    16
 X24E |    9   14  ---  ---   10   15  ---   11    8  ---    5 |    46   44  ---  ---   44   50  ---   47   41  ---    44
  25  |    5    8    6   13    8    4    7    5    6    7    2 |    10   20   19   18   17   18   22   19   18   20    16
  26  |    6    7    8    7    8    4    7    3    8    5    2 |    10   20   21   19   17   18   22   17   20   19    17
  27  |    6   11    8    7   10    4    9    6    7    7    2 |    14   22   26   23   24   22   24   21   24   24    21
  28  |    6   11    5    8    7    3    9    6    9    6    2 |    10   23   20   20   18   20   24   17   23   22    18
  29  |    5   17    8   11   14    3    9    5   13    8    3 |    24   29   29   35   32   29   30   31   33   32    29
  30  |    7   13    8   10   17    5   10    5    9    5    3 |    76   83   79   76   78   78   82   80   79   81    79
  31M |    9   11    7    8   15    5    8    6    7    7    3 |    30   37   33   36   34   34   35   32   33   36    32
  32M |    8   11    6   11    8    3    5    4    6    7    2 |    23   29   31   32   28   29   31   28   28   26    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   12    7    9   11    5    9    6    8    8      |T   52   54   57   58   50   56   59   56   57   59    55
 WRMS |    6   12    7    9   10    5    9    5    8    7      |NE  54   55   59   60   52   59   61   59   60   61    58
 MEDI |    6   11    7    9   10    4    8    6    7    7      |MD  19   27   25   25   24   24   26   24   25   27    23

Table 3.2153.2   GPS week: 2153   Day: 2   MJD: 59317.000                            

        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    9   10    5    8    5   10    6    2 |   397  397  397  400  261  395  397  395  394  396   396
   2  |    6    9    8   10    9    4    8    6    9    9    3 |    20   24   21   23   24   22   21   24   24   28    22
   3  |    6   10    9    8    8    3    9    5   11    8    3 |    10   27   23   16   14   18   26   15   20   17    16
   4  |    8   14    8   10    9    6    8    6   14    7    3 |    61   59   57   64   60   57   59   57   66   60    59
   5  |    5    9    9    9    6    5    7    6    6    5    2 |    12   21   16   24   15   19   20   19   19   19    17
   6  |    6    8    8   11    9    6    7    7   10    7    2 |   832  508  831  834  507  833  833  838  835  837   835
   7E |    8   17    8    9    8    5    9    5   11    8    3 |    23   28   27   32   29   29   27   30   28   31    27
   8  |    6   15    8    9   10    5    8    6   12    7    3 |    15   23   25   23   24   22   25   20   23   25    20
   9  |    5    8    8    9    9    4    8    6    9    7    2 |    24   28   31   26   26   27   30   27   27   30    26
  10  |    5    9   10    8    6    4    7    5    6    8    2 |    15   26   24   24   18   22   28   21   22   19    20
  12  |    4   14    5    8    7    5    7    3    8   10    2 |    23   30   25   29   27   27   29   28   29   29    26
  13  |    6   11    5    9   10    5    9    6    5    8    2 |    11   22   18   20   17   18   21   18   18   18    16
  14  |    5   10    9    9    8    6   10    7    7    6    2 |    34   36   34   32   37   34   34   39   34   40    35
  15  |    8   14    9   11    9    4    8    6    9   14    3 |    35   44   38   38   37   41   42   39   41   46    38
  16  |    6   19    5    6    9    4    5    6    9    7    2 |     8   15   16   17   14   15   16   16   17   20    13
  17  |    7   10    6   19    9    4    6    4    8    5    3 |    28   32   30   35   34   30   31   31   31   30    29
 X18  |    9   19   17   11   16    5   10    6   11  ---    4 |    45   47   40   48   53   44   49   46   50  ---    46
  19  |    8   12    5   11    8    3    8    5   10    8    3 |    26   31   29   33   32   29   29   31   35   31    29
  20  |    6   10   11   10    5    6    5   10    9   11    3 |    61   59   58   62   59   61   61   65   57   64    61
  21  |    7   15    7   13   11    4    6    8   11    6    3 |    14   18   18   17   19   18   20   23   20   24    17
  22  |    5    6    7    8    9    2    6    4    9    5    2 |    11   20   19   15   14   17   22   17   19   19    16
  23  |    9   16    8   14    7    5   18    5    6   11    3 |    16   19   19   23   21   16   17   20   20   19    17
 X24E |   13  ---  ---  ---   14   23   13   19  ---  ---    9 |    23  ---  ---  ---   29   35   34   34  ---  ---    27
  25  |    6    7    7    9    9    4    6    4    5   10    2 |    11   20   19   17   17   18   21   18   19   20    16
  26  |    6    8    9   10    7    4    6    5    8    9    2 |    19   24   23   24   21   22   25   20   22   22    20
  27  |    5   13    8   10   10    4    9    6    7   12    3 |    11   22   23   24   22   21   22   19   20   23    18
  28  |    6   11    5    8    6    4    8    6    5    4    2 |    14   24   21   19   20   21   24   21   20   22    19
  29  |    6   18    9   11   14    4   11    5   12    8    3 |    16   21   21   25   25   21   22   23   26   25    21
  30E |    5   14    7   13   10    6    8    7    7    6    3 |    38   44   42   38   36   40   42   41   41   42    39
  31E |    8   10    6   11   16    6    8    5    8    9    3 |    63   62   62   61   62   61   63   61   65   61    61
  32  |    6    7    7    7    9    3    7    4    7    8    2 |    27   32   33   33   32   31   34   30   34   30    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6   12    8   10    9    5    8    6    9    8      |T   62   58   68   69   51   66   68   67   69   70    65
 WRMS |    6   12    8   10    8    5    8    5    9    8      |NE  68   61   72   73   54   71   74   72   73   75    71
 MEDI |    6   11    8    9    9    4    8    6    9    8      |MD  23   27   25   25   26   27   28   27   26   28    26

Table 3.2153.3   GPS week: 2153   Day: 3   MJD: 59318.000                            

        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  |    9   10    5   10    9    3    7    7    8   10    3 |   224  225  227  227  203  227  226  227  229  227   227
   2  |    7    8    9   11   10    4    8    8   10   11    3 |    16   22   18   18   22   20   21   23   24   25    19
   3  |    9   10    8    9    8    4    8    8    8   13    3 |    14   27   23   17   15   19   27   17   19   19    18
   4  |   11   15    7    7    9    5    7    8    8    9    3 |    43   42   35   42   41   39   41   40   43   40    40
   5  |    7   10    8    7    7    4    6    8    7    8    2 |    13   22   18   21   17   19   23   21   21   21    19
   6  |    8    8    8   10    8    4    8    8    8    8    3 |   393  443  393  397  441  396  397  395  394  394   395
   7E |    9   16    9   10   11    4    9    6   13    9    3 |    21   28   25   29   26   26   26   29   31   31    25
   8  |    9   15    6    7   11    3    9    7    9    9    3 |    13   23   22   21   22   19   23   19   20   20    18
   9  |    8    9    9    8    8    6    8    9    9   11    3 |    16   23   25   22   22   23   24   25   23   25    22
  10  |    4    8    6    6    7    3    6    6    6    8    2 |    19   29   24   23   19   22   28   21   20   23    21
  12  |    8   14    6    9    9    2    8    6   10   12    3 |    20   32   25   27   27   26   30   28   25   29    26
  13  |    8   12    7    8    9    5   10    8    7   13    3 |    13   24   17   20   16   19   24   20   17   20    17
  14  |    6   11    8    9    7    7    7    7    7    8    2 |    33   38   35   38   39   36   35   40   36   40    36
  15  |    9   16    7   10    9    6    7    7    8   12    3 |    35   42   38   39   35   37   37   35   36   37    36
  16  |    8   19    4    6    9    4    6    8    7    9    3 |    12   18   19   20   18   18   20   19   19   20    17
  17  |    6    9    5    8    9    2    4    6    7    4    2 |    20   27   24   25   25   25   26   28   26   28    24
 X18  |    9   18   15   12   19    5    9    8    9  ---    4 |    49   48   45   56   56   48   52   51   49  ---    50
  19  |    7   11    5    8    9    4    5    6    7    7    2 |    19   24   23   25   24   23   24   25   23   26    22
  20  |    6    8    9    7    8    4    6    6    9   13    3 |    34   37   34   36   35   36   37   38   34   40    35
  21  |    7   10    7   12   10    4    7    9    6   10    3 |    16   20   18   18   21   18   20   23   19   23    18
  22  |    8    8    7    7    8    4    5    6    9   11    2 |    14   22   20   17   16   17   21   18   17   16    16
  23  |   10   15    6   11    9    3   16    6    7   10    3 |    12   18   15   22   15   13   15   16   12   17    13
 X24E |    8   14   12  751   12    6    7   10    9  ---    4 |    35   42   27  628   35   38   33   42   41  ---    38
  25  |    8   11    7   10   12    4    7    6    9    9    3 |    13   26   22   22   20   21   24   21   17   20    19
  26  |    9    9    7    5    6    2    5    6    7    8    2 |    17   23   24   25   20   23   25   21   20   20    20
  27  |    8   13    7    6   10    3    6    7    8   11    3 |    11   19   23   21   22   20   21   19   20   19    18
  28  |    7   11    5    9    7    4    8    6    6    7    2 |    14   26   21   22   19   21   26   22   21   23    20
  29  |    8   21    9   11   14    4    8    7   12    8    3 |    11   22   19   23   22   19   20   22   22   21    18
  30E |    8   12    7    9   10    4    8    7   13   11    3 |    50   57   56   57   52   56   55   54   52   56    53
  31E |    9   12    7    9   14    6    6    7    7    9    3 |    34   40   36   38   40   38   39   40   38   41    37
  32  |    8    9    6    8    8    3    6    7    5    7    2 |    16   28   25   24   23   24   25   25   25   26    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12    7    9    9    4    8    7    8   10      |T   40   48   44   65   45   44   46   45   44   46    43
 WRMS |    8   12    7    9    9    4    8    7    8    9      |NE  42   50   46   47   47   46   48   47   46   47    45
 MEDI |    8   11    7    9    9    4    7    7    8    9      |MD  17   27   24   24   22   23   26   25   23   25    22

Table 3.2153.4   GPS week: 2153   Day: 4   MJD: 59319.000                            

        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  |   10   19    7   12  ---    5   15    8   12   10    4 |   625  628  628  628  ---  626  628  626  624  628   627
   2  |    8   11   11   11   11    6    8    9   10   14    3 |    30   34   33   34   35   33   32   36   38   39    33
   3  |    7   11    8   14    9    3    9    5    8    5    3 |    24   33   32   26   24   28   33   25   28   31    27
   4  |    9   12   10    9    9    5    7    7   10    9    3 |    61   63   66   68   63   64   64   64   68   67    65
   5  |    6   10   10   10    6    5    8    6   11   10    3 |    22   27   28   30   26   28   27   29   29   29    27
  X6  |   61  ---   27   31  ---   23   75   28   33   33   15 |  9999  --- 9999 9999  --- 9999 9999 9999 9999 9999  9999
   7E |    7   15   10    9   10    4    9    5   10    8    3 |    23   31   28   26   27   28   28   28   29   33    26
   8  |    8   11    8    9    9    3    9    8   12    7    3 |    26   34   35   33   31   33   34   30   33   32    31
   9  |    6    6   10    9    9    4    8    6    9    9    3 |    32   37   38   36   36   35   36   36   40   35    35
  10  |    6   11    9    8    5    5    9    4    8   10    2 |    27   36   31   31   28   31   35   29   31   26    30
  12  |    7   13    7   10    8    4    6    4    6   11    2 |    33   41   36   36   35   36   38   35   38   37    35
  13  |    9   10    7   10   11    5    9    6   10   11    3 |    23   33   30   30   29   29   31   27   33   29    27
  14  |    8    9   11    8   11    6    8    7    9   12    3 |    45   47   47   50   50   47   45   49   50   51    48
  15  |    8   11    8    8    9    6    8    6   11    7    3 |    38   49   44   43   46   44   46   43   42   43    43
  16  |    5   20    6   10   10    5    7    5   10    7    3 |    23   26   27   28   26   28   27   25   26   27    25
  17  |    6   10    7    8   10    4    5    6    8    7    2 |    39   43   44   44   44   44   43   42   45   43    42
 X18  |    9   19   15   15   18    7   10    6   17  ---    5 |    59   59   57   63   60   58   61   61   62  ---    60
  19  |    7   15    8    8   10    7    7    6    8   11    3 |    37   44   45   42   44   43   43   41   44   42    41
  20  |    7    9    8   10    7    5    7    5    9    9    2 |    54   55   56   59   56   57   56   55   55   56    55
  21  |    8   11    8   16   12    5    6    9    6    9    3 |    24   29   28   30   29   28   28   32   27   32    27
  22  |    7    9    6    9    9    4    6    6    9    8    2 |    24   31   28   28   25   27   29   26   27   29    26
  23  |   10   15    6   11    7    5   17    4    8    7    3 |    31   34   34   38   34   33   32   34   36   32    33
 X24E |   14   13   12   16   17    7    8    8   13  ---    4 |    38   36   36  177   34   37   34   36   39  ---    34
  25  |    8    8    8    9   12    4    6    3    9    8    2 |    27   35   35   31   29   32   32   30   32   31    30
  26  |    7   10    8    9    8    3    7    4   13    6    2 |    30   35   34   30   31   33   35   30   33   33    31
  27  |    6   10    9    7    9    4    8    6   13   10    3 |    26   32   33   32   30   31   31   28   32   30    29
  28  |    7    9    6    9    8    4    7    6    7   10    2 |    30   36   36   35   33   34   35   32   38   36    33
  29  |    8   19    6    8   14    5   10    4   12    9    3 |    31   36   36   36   36   35   35   37   36   40    35
  30E |    8    8   11    7   13    6    7    6    6   12    3 |    33   37   36   38   37   37   39   40   38   40    37
  31E |    9   12    8   10   13    5    7    3   14    9    3 |    23   30   25   26   26   27   26   26   29   28    25
  32  |    8    7    8   10    7    3    6    4    9    7    2 |    28   34   34   32   32   33   33   33   34   33    32
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   12    8   10   10    5    8    6   10    9      |T   52   57   56   61   35   55   56   55   57   57    54
 WRMS |    7   12    8   10   10    5    8    5   10    9      |NE  56   62   61   61   36   60   61   60   61   61    59
 MEDI |    8   11    8    9    9    5    8    6   10    9      |MD  30   35   35   34   33   33   34   33   36   33    33

Table 3.2153.5   GPS week: 2153   Day: 5   MJD: 59320.000                            

        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    9    7   12   21    4    9    6    8    9    3 |   365  369  370  371  494  369  369  368  362  367   368
   2  |    7    8    8   10   11    4    9    8    9    8    3 |    12   19   17   19   20   18   20   23   23   25    18
   3  |    9   10    9   12    8    3    9    8    8    9    3 |    19   29   28   20   19   23   29   20   23   24    21
   4  |   11   14    7    8    9    6    9    7   10    7    3 |    54   53   52   54   53   52   52   55   56   56    53
   5  |    7    9   10    8    9    4    8    7    8    7    3 |    19   25   20   22   20   23   26   22   25   24    21
   6  |    8   10    8    9    9    6    9    8    9    8    3 |   550  860  549  545  860  546  546  546  550  553   548
   7E |   11   14    8    7    8    3   10    5    9    7    3 |    26   31   29   29   32   29   29   29   32   30    28
   8  |   10   12    8    9   11    5    9    7    8    9    3 |    17   26   25   26   22   25   25   22   22   23    21
   9  |    7    8    8    9   10    4    8    8    5    6    2 |    13   20   22   18   21   19   22   20   22   22    18
  10  |    8    9    7   10    5    4    9    5    7    9    2 |    12   25   19   20   15   18   25   15   19   15    17
  12  |    6   14    7    9    9    4    8    6   11    9    3 |    15   24   20   21   20   22   25   21   24   24    19
  13  |    7   11    6   10   11    4    8    6    9   11    3 |    14   25   20   22   18   20   25   19   22   20    18
  14  |    7    9    9    7   10    5    9    6   12    7    3 |    22   23   22   29   25   22   23   25   23   28    23
  15  |    6   10    8    9   11    5    8    6    9    7    2 |    38   42   40   43   36   41   41   37   38   40    39
  16  |    7   20    6    8   10    5    6    6    7    6    3 |    14   20   17   21   17   19   18   17   18   18    16
  17  |    7    8    7    7   11    3    7    5    9    7    2 |    19   26   23   27   23   25   27   26   25   25    23
 X18  |    9   18   15   11   21    7    9    8   15  ---    5 |    50   56   52   52   50   51   54   53   58  ---    52
  19  |    9   12    8    6   10    4    7    6   11    7    3 |    22   30   28   27   29   26   30   28   27   27    26
  20  |    6    9    8    8    7    5    4    6    9    9    2 |    49   51   48   51   47   50   50   47   50   48    48
  21  |    6   10    8   17   12    5    7    8    7    9    3 |    20   27   21   24   23   23   25   25   26   26    22
  22  |    9    7    7   11   10    4    8    8   10    8    3 |    20   28   26   25   24   26   27   25   27   28    24
  23  |   10   15    6   10    9    5   16    6    7    8    3 |    15   20   16   20   19   15   17   17   17   19    15
 X24E |   10   15   13   14   13    7    9   10   15  ---    4 |    25   30   26   82   22   27   27   29   33  ---    25
  25  |    6    8    7   13   13    3    7    6    7    6    3 |    13   28   24   22   17   22   26   20   21   23    20
  26  |    7    9    7    8    8    4    6    4    8    5    2 |     9   19   19   18   14   17   19   15   19   16    15
  27  |    8   10    8   11   13    4    9    6   10   11    3 |    14   21   23   25   20   22   22   20   21   21    19
  28  |    7    9    5    6    7    3    8    7   12    6    2 |    10   23   19   20   16   18   22   18   22   21    17
  29  |    6   20    5   13   17    5    8    5   12    7    3 |    28   34   31   33   29   31   32   33   37   36    31
  30E |    8   12    8   12   13    5    8    7    9    6    3 |    31   36   34   39   32   36   38   36   35   38    34
  31E |    8   11    5    9   12    3    7    6   10    6    2 |    38   41   39   38   41   40   40   40   41   40    39
  32  |    8    9    7   12    9    4    6    5    8    6    2 |    13   22   21   25   19   21   22   19   21   18    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   11    7   10   11    4    8    6    9    8      |T   50   67   54   57   67   54   56   54   56   57    53
 WRMS |    8   11    8   11   11    4    8    6    9    8      |NE  55   73   59   60   75   59   61   59   60   61    58
 MEDI |    7   10    8    9   10    4    8    6    9    7      |MD  19   27   24   25   22   23   26   25   25   25    22

Table 3.2153.6   GPS week: 2153   Day: 6   MJD: 59321.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   14    6    8   11    3    8    6    6    8    2 |   353  355  356  357  288  355  355  356  355  355   355
   2  |    9   10    9   12    8    6   10    7    7    8    3 |    14   23   20   24   24   21   22   25   27   27    21
   3  |    8   12    7   11    6    4    9    6    6    8    2 |    20   30   24   23   21   24   30   23   26   24    22
   4  |   10   13    7    9    8    6    9    5    6    8    3 |    80   75   77   79   77   76   75   79   79   78    78
   5  |    6    8   10   10    5    7   10    6    9    7    2 |    24   30   27   26   26   27   31   27   28   29    26
   6  |    8   10    8   12    7    5    8    7    7    7    3 |   675  534  674  673  535  674  674  675  673  676   674
   7E |   10   15    8    6   15    5    9    7   10    8    3 |    29   34   27   30   32   29   31   33   32   33    30
   8  |    8   12    8   11    9    5   11    6    7    8    3 |    14   23   22   23   21   20   25   18   19   20    18
   9  |    7    9    8   10    6    4    7    7    8    7    2 |    23   26   28   25   27   27   29   29   27   27    26
  10  |    7    9    7   10    8    4    7    5    5    8    2 |    19   28   22   25   19   21   26   21   22   21    21
  12  |    6   17    8   10   10    4   10    5   10   12    3 |    30   40   33   35   31   31   36   31   31   31    32
  13  |    9    9    6    8    9    4   11    5   12   10    3 |    17   25   20   24   20   21   27   22   22   24    20
  14  |    7   11    9    9   10    6    9    6   10    8    3 |    51   52   49   54   54   50   50   56   50   55    52
  15  |    6   10    7   10    9    5    7    6    8    8    2 |    52   58   55   57   52   55   54   54   53   58    54
  16  |    6   21    4   10   10    5    9    5    7    7    3 |    18   20   21   25   21   22   23   21   20   23    20
  17  |    7   11    5    9    9    4    8    7    8    6    2 |    25   30   27   32   29   28   30   29   29   30    27
 X18  |   10   19   14   13   20    8   11    8   14  ---    5 |    82   79   76   83   81   79   82   83   80  ---    80
  19  |    9   12    6   10    8    4    9    7   10   12    3 |    24   31   30   34   30   29   31   28   29   35    29
  20  |    6    8    8   10    7    4    6    6    7   10    2 |    63   64   63   64   61   65   65   63   64   64    63
  21  |    8    8    8   12   11    4    7    6    6    8    3 |    20   27   25   30   24   26   27   24   22   26    23
  22  |    7    8    7    7    9    3    6    6    4    7    2 |    26   31   29   31   25   29   31   30   30   28    28
  23  |    8   15    7   15    8    5   18    5    7    8    3 |    23   25   25   30   23   24   24   23   23   24    22
 X24E |    7   13   13   18   16    7   11   11   11  ---    4 |    23   31   25   74   23   30   29   32   31  ---    27
  25  |    7    8    6   15   10    3    7    4    6    8    2 |    21   27   26   28   23   24   27   24   23   23    24
  26  |    5    8    6    8    8    3    7    4    6    6    2 |    21   25   26   24   22   24   26   23   23   23    23
  27  |    8   10    7   11   11    4   10    7    8   10    3 |    12   19   21   21   21   18   19   18   18   19    16
  28  |    6   12    5   10    6    4    8    6   10    5    2 |    22   27   25   28   23   25   28   27   28   23    24
  29  |    7   22    5   13   15    5   10    6    8   11    3 |    29   35   32   36   31   32   33   33   33   33    31
  30E |    8   11    9    9   12    7    8    7    9    6    3 |    35   40   39   39   36   38   41   38   40   37    37
  31E |    8   10    9   15   14    5    8    7   12    7    3 |    46   48   44   50   43   46   47   47   45   48    45
  32  |    7    8    6   13    6    4    7    5    7    5    2 |    26   30   29   32   29   30   31   29   29   27    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12    7   11    9    5    9    6    8    8      |T   61   62   64   68   57   64   66   65   64   66    63
 WRMS |    7   12    7   11   10    5    9    6    8    7      |NE  67   66   70   72   61   70   72   70   70   71    69
 MEDI |    7   11    7   10    9    4    9    6    8    8      |MD  24   30   27   31   27   29   31   29   29   28    27



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 4.2153   GPS week: 2153   MJD: 59315.0-59321.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2971 |U    8     7    19 |U    9    13    35 |U    7     8    19 |
emr | emr 2947 |U   17    21    36 |U   12    20    49 |U   11    19    33 |
esa | esa 2948 |    12    12    22 |U   10    16    45 |    10    15    30 |
gfz | gfz 2942 |U   11    10    22 |U    9    13    35 |U   14    13    40 |
grg | grg 2946 |U   10    13    21 |U   11    15    37 |    10     9    25 |
igr | igr 2957 |    10     8    18 |    10    15    37 |    10    11    24 |
igs | igs 2957 |     9     8    16 |     9    14    34 |     8    10    22 |
jpl | jpl 2962 |U   15    16    31 |U   11    18    47 |    13    19    33 |
mit | mit 2976 |U    9     9    21 |U    9    14    34 |U   10     9    22 |



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 5.2153.0   GPS week: 2153   Day: 0   MJD: 59315.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    13     7    14 |     8    10    29 |     5     7    14 |
emr | emr 2976 |    18    16    42 |    11    16    42 |     8    25    34 |
esa | esa 2976 |    14    10    26 |     8    13    43 |     9    17    27 |
gfz | gfz 2976 |    13     8    19 |     9    12    37 |    27    39   138 |
grg | grg 2973 |    13    12    21 |     9    12    37 |    11    11    29 |
igr | igr 2976 |    12     7    19 |     8    11    35 |     8    13    25 |
igs | igs 2976 |    12     6    17 |     8    11    34 |     7    11    22 |
jpl | jpl 2976 |    16    11    26 |    10    14    44 |     8    18    32 |
mit | mit 2976 |    13     9    20 |     8    13    39 |    10    13    24 |

Table 5.2153.1   GPS week: 2153   Day: 1   MJD: 59316.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2948 |     9     7    15 |    11    16    42 |     7     8    23 |
emr | emr 2968 |    16    21    30 |    15    20    51 |    12    15    34 |
esa | esa 2880 |    13    11    20 |    13    18    49 |    10    12    28 |
gfz | gfz 2880 |    13    12    15 |    12    16    48 |    12     8    24 |
grg | grg 2964 |    12    14    23 |    13    14    53 |    12     8    28 |
igr | igr 2948 |    11     8    17 |    12    17    44 |    10     8    24 |
igs | igs 2940 |    11     9    13 |    12    16    42 |     9     7    23 |
jpl | jpl 2880 |    15    17    27 |    14    19    46 |    12    14    30 |
mit | mit 2976 |  ----  ----  ---- |    12    14    34 |     1     2     7 |

Table 5.2153.2   GPS week: 2153   Day: 2   MJD: 59317.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     7    11 |    13    14    36 |     7     7    16 |
emr | emr 2880 |    17    16    29 |    13    22    57 |    10    19    32 |
esa | esa 2880 |    11    11    19 |    12    18    60 |    11    14    30 |
gfz | gfz 2880 |    10    12    22 |    13    14    45 |    11     9    22 |
grg | grg 2976 |    10    16    17 |    13    18    44 |     9     9    26 |
igr | igr 2878 |     8     9    17 |    11    14    48 |    11    11    22 |
igs | igs 2976 |     8     9    13 |    12    15    45 |     9    10    21 |
jpl | jpl 2976 |    11    15    18 |    11    18    54 |    11    20    31 |
mit | mit 2976 |     7    11    17 |    11    15    47 |  ----  ----  ---- |

Table 5.2153.3   GPS week: 2153   Day: 3   MJD: 59318.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     5    14 |     8    10    24 |     5     9    19 |
emr | emr 2976 |    16    18    35 |    12    20    59 |    12    22    40 |
esa | esa 2976 |    11    11    21 |     8    15    43 |     9    15    33 |
gfz | gfz 2935 |    10     7    24 |     7    11    26 |    10     9    26 |
grg | grg 2976 |     8    11    20 |     7    13    32 |     9     7    25 |
igr | igr 2976 |     8     8    16 |     8    13    30 |     9    10    29 |
igs | igs 2976 |     8     7    14 |     7    12    29 |     7    10    25 |
jpl | jpl 2976 |    13    14    20 |     8    17    36 |    11    17    35 |
mit | mit 2976 |     9     8    21 |     8    13    28 |    14    11    35 |

Table 5.2153.4   GPS week: 2153   Day: 4   MJD: 59319.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |    15    12    46 |     9    16    61 |     6     6    17 |
emr | emr 2880 |    18    24    42 |     9    22    44 |    14    19    26 |
esa | esa 2976 |    11    15    23 |     8    17    33 |     7    12    25 |
gfz | gfz 2976 |    11     9    23 |     9    14    27 |    11     8    20 |
grg | grg 2784 |    11    16    23 |    15    18    36 |    10     7    21 |
igr | igr 2976 |    10     9    20 |     7    16    24 |     9     9    18 |
igs | igs 2976 |     9     9    19 |     7    15    24 |     8     9    18 |
jpl | jpl 2976 |    26    23    73 |    12    21    61 |    11    19    37 |
mit | mit 2976 |     8     9    22 |     9    14    29 |    11     8    21 |

Table 5.2153.5   GPS week: 2153   Day: 5   MJD: 59320.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2974 |     5     6    15 |     8    10    29 |    12    14    26 |
emr | emr 2976 |    16    25    38 |    12    21    44 |    13    16    33 |
esa | esa 2976 |    12    11    23 |     9    17    39 |    14    19    36 |
gfz | gfz 2976 |    11    11    23 |     7    13    27 |    12     9    24 |
grg | grg 2974 |     8    12    18 |    10    15    26 |    10    11    22 |
igr | igr 2969 |    10     7    19 |    13    16    44 |    17    16    31 |
igs | igs 2880 |     8     8    16 |     9    14    31 |    11    12    23 |
jpl | jpl 2976 |    13    19    27 |    10    17    38 |    24    28    37 |
mit | mit 2976 |     9     9    21 |     8    14    27 |    12    10    26 |

Table 5.2153.6   GPS week: 2153   Day: 6   MJD: 59321.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     6    18 |     9    13    25 |     7     8    18 |
emr | emr 2976 |    15    26    36 |    13    20    47 |    11    18    34 |
esa | esa 2976 |    11    12    24 |    10    18    47 |     9    15    29 |
gfz | gfz 2976 |     9    10    25 |     7    14    32 |    13     9    23 |
grg | grg 2976 |     7    12    22 |    10    15    30 |    12    13    26 |
igr | igr 2976 |     8     8    20 |     9    16    35 |    10    11    22 |
igs | igs 2976 |     7     7    17 |     9    15    33 |    10    10    21 |
jpl | jpl 2976 |    12    15    26 |    10    21    50 |    12    19    33 |
mit | mit 2976 |     8     9    24 |     9    14    32 |    12     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 6.2153   GPS week: 2153   MJD: 59315.500-59321.500

                                                         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 |      10      -2      47       6     -4 |      10     17
            |      17      26      88      63      6 |       3
emr   uuuuu |     -24      -9      37     138      1 |      14     23
            |      19      15     131      67     12 |       2
esa   uuuuu |      16     -12      74     116     -1 |      39     41
            |       7      13      52      73      4 |       2
gfz   uuuuu |       8      -1      -7     109      4 |      24     28
            |      15      31      59     157      4 |       3
grg   uuuuu |       6       6       2     -79     -4 |      10     17
            |      17       9      40      51      4 |       3
igr   xxxxx |      16      -9      58     -16     -2 |       4     13
            |      12       9      27      43      3 |       2
irf   xxxxx |      21       6     -30     -17      0 |       3     16
            |      13      13      15       6      5 |       3
jpl   uuuuu |      31      -3       2      56      3 |      32     35
            |      13       9      97      46      6 |       2
mit   uuuuu |       3      28     -91    -150      5 |      26     30
            |      20      13      28      44      4 |       2
ngs   uuuuu |     -70     -22     -29     -88      4 |      18     22
            |      37      58      47      78      3 |       2
sio   xxxxx |      59     -34    -219    -156      5 |      31     35
            |      53      68     102     167     11 |       2


Table 7.2153.0   GPS week: 2153   Day: 0   MJD: 59315.500

                                                         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 |      -5     -20      94      29      3 |       6     12
emr   uuuuu |     -12       3    -222     144     -3 |      14     21
esa   uuuuu |       7     -21     -33      29     -1 |      37     38
gfz   uuuuu |       8      16      14     -32     -2 |      21     24
grg   uuuuu |       1      -3      31     -79      1 |       8     12
igr   xxxxx |      -1       4      11     -11     -2 |       2      7
irf   xxxxx |       9       6     -28     -19     -6 |       4     14
jpl   uuuuu |      38     -15      87      69     -8 |      30     33
mit   uuuuu |       1      18     -60    -128     -1 |      24     27
ngs   uuuuu |     -38      27       6      52     -2 |      14     17
sio   xxxxx |      10    -161    -241    -114     -9 |      33     37

Table 7.2153.1   GPS week: 2153   Day: 1   MJD: 59316.500

                                                         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 |      23     -19      73      32      4 |       9     17
emr   uuuuu |     -28     -17      66     187    -24 |      16     23
esa   uuuuu |      14     -11     110     102      2 |      39     41
gfz   uuuuu |      -8      -6     -45    -114      8 |      22     26
grg   uuuuu |     -12       9      29    -120      0 |      11     17
igr   xxxxx |      12      -5      64       3     -2 |       4     12
irf   xxxxx |      18       3     -25     -13     -4 |       6     16
jpl   uuuuu |      36       1       2      91      1 |      31     34
mit   uuuuu |      11      25    -138     -87      0 |      27     30
ngs   uuuuu |     -67      10     -37     -46      7 |      17     21
sio   xxxxx |      82     -47    -112    -142     -3 |      33     37

Table 7.2153.2   GPS week: 2153   Day: 2   MJD: 59317.500

                                                         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       0      18      65     -4 |      11     16
emr   uuuuu |     -12     -32     209      82      0 |      14     24
esa   uuuuu |      21     -17      99      89     -5 |      39     41
gfz   uuuuu |      11     -42      21     205      9 |      23     26
grg   uuuuu |     -15      15     -31    -100     -4 |      11     17
igr   xxxxx |      16      -9      83     -11     -1 |       4     12
irf   xxxxx |      21      15     -44      -9     -2 |       5     16
jpl   uuuuu |      50      15      -1      90      9 |      31     34
mit   uuuuu |       9      44    -118    -137      5 |      26     30
ngs   uuuuu |     -97     -36     -52    -181      2 |      18     21
sio   xxxxx |     115     -60    -123     -41      1 |      30     34

Table 7.2153.3   GPS week: 2153   Day: 3   MJD: 59318.500

                                                         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     -35      18    -110     -2 |      12     17
emr   uuuuu |     -19       6      73     198     12 |      13     23
esa   uuuuu |      11      -7      81      48     -2 |      39     41
gfz   uuuuu |       4     -13     -70     251      2 |      25     29
grg   uuuuu |       8      -9      43     -50    -10 |      12     18
igr   xxxxx |      18      -6      49      41     -2 |       5     13
irf   xxxxx |      15      24     -33     -16     -1 |       4     15
jpl   uuuuu |      35      -1      55      30      8 |      32     35
mit   uuuuu |     -10      41     -76    -150      5 |      27     31
ngs   uuuuu |     -80       3    -101     -97      1 |      19     23
sio   xxxxx |      58     -27    -282    -203      9 |      29     32

Table 7.2153.4   GPS week: 2153   Day: 4   MJD: 59319.500

                                                         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 |     -11      15     188      67     -5 |      15     19
emr   uuuuu |      -2     -23       5     161      7 |      16     26
esa   uuuuu |      28     -30      55     236      0 |      42     44
gfz   uuuuu |      -2     -30     -27     -16      5 |      29     32
grg   uuuuu |      16      17     -41    -113     -6 |      14     19
igr   xxxxx |      26     -23      84     -69     -1 |       7     14
irf   xxxxx |      42     -16     -18     -22      0 |       6     16
jpl   uuuuu |      16      -4     -64     103      1 |      35     39
mit   uuuuu |      24       8     -69    -189      6 |      29     33
ngs   uuuuu |    -112      38     -38    -131      5 |      21     25
sio   xxxxx |      -9      52    -189    -507      6 |      32     35

Table 7.2153.5   GPS week: 2153   Day: 5   MJD: 59320.500

                                                         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       5    -101     -11     -8 |      11     20
emr   uuuuu |     -41       3      89      13      4 |      12     25
esa   uuuuu |      14      11      86     128      4 |      38     41
gfz   uuuuu |       5      44     -48     255      5 |      25     30
grg   uuuuu |      13       4      29    -112     -4 |       9     19
igr   xxxxx |      33     -17      76     -78      1 |       4     17
irf   xxxxx |      36      14      -9     -26      7 |       0     17
jpl   uuuuu |      30      -7     107     -27      0 |      32     37
mit   uuuuu |      22      36     -78    -134     11 |      25     31
ngs   uuuuu |     -92    -119     -33     -63      4 |      18     24
sio   xxxxx |      27       1    -183     -78     26 |      28     33

Table 7.2153.6   GPS week: 2153   Day: 6   MJD: 59321.500

                                                         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 |       8      42      36     -30    -15 |       9     19
emr   uuuuu |     -56      -6      37     184      9 |       9     22
esa   uuuuu |      14     -10     123     178     -6 |      36     39
gfz   uuuuu |      39      22     103     214      2 |      24     29
grg   uuuuu |      33       6     -49      24     -2 |       7     18
igr   xxxxx |       5      -7      36      12     -8 |       2     16
irf   xxxxx |       7      -1     -52     -15      6 |      -1     17
jpl   uuuuu |      10      -7    -175      37     10 |      30     35
mit   uuuuu |     -33      22     -96    -223      9 |      24     30
ngs   uuuuu |      -7     -77      49    -150      7 |      17     23
sio   xxxxx |     130       6    -406      -9      6 |      29     35


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