[IGSREPORT-22079] Wk 1753 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Aug 30 06:24:24 PDT 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1753   (Aug 11, 2013 - Aug 17, 2013)

Contacts: J. Griffiths (jake.griffiths at noaa.gov)
          K. Choi (kevin.choi at noaa.gov)


COMBINATION STRATEGY:
---------------------

Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

Each centre satellite clock corrections are first transformed to a common 
reference. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. Ephemerides and clock corrections are then combined
as weighted averages computed over all centres. Each centre is given a
position weight and a clock weight. The position weights are computed from
each centre's absolute deviation to the unweighted average orbit after the
estimation of a 7-parameter Helmert transformation. The clock weights are
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. All the above estimations are performed using the
L1-norm robust scheme.

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data 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:

igs1753[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1753[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1753[0-6].cls  IGS GPS clock combination summary report.
igs17537.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17537.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   | 9 9 ARTU KOUC MOBS REYK ARTU KOUC MOBS REYK XMIS
                0  |  EMR   | 8
                0  |  ESA   | 9 9 IRKJ KOUC IRKJ KOUC UNSA
                0  |  GFZ   | 9 9 GRAS GRAS TSKB
                0  |  GRG   | 8 21 IRKJ NTUS IRKJ NRMD NTUS
                0  |  JPL   | 8 21 KOUC
                0  |  MIT   | 3 11 21 22 3 8 11 19 21 22 ALGO BREW CAS1 DAEJ DARW
                0  |  MIT   | DAV1 DRAO GLSV GODE GRAZ HNPT IENG IRKT KOUR LAMA
                0  |  MIT   | MAC1 MDVJ MIZU NRC1 NTUS NYAL OPMT PRDS PTBB SCH2
                0  |  MIT   | SFER SYOG TIDB TSKB TWTF VILL WAB2 WSRT ZIMM DAEJ
                0  |  MIT   | GOPE MDVJ NTUS TWTF USNO
                1  |  COD   | 8 KOUC XMIS REYK
                1  |  EMR   | 9 9 HARB HARB
                1  |  ESA   | 8 CAGZ IRKJ KOUC CAGZ IRKJ KOUC UNSA
                1  |  GFZ   | 9 8 9 DAEJ WES2 DGAR MATE WES2
                1  |  GRG   | 9 9 HARB IRKJ LPGS HARB IRKJ LPGS
                1  |  JPL   | 9
                1  |  MIT   | 9 28 9 28 NICO NICO
                2  |  COD   | 6 KOUC KOUC ZAMB
                2  |  EMR   | 8
                2  |  ESA   | IRKJ KOUC IRKJ KOUC
                2  |  GRG   | 8 IRKJ IRKJ
                2  |  JPL   | 8
                2  |  MIT   | 15 19 28 8 15 19 28 NICO MDVJ NICO SCH2
                3  |  COD   | 9 8 9 KOUC XMIS KOUC NKLG XMIS
                3  |  EMR   | KERG MATE KERG MATE
                3  |  ESA   | 9 8 9 IRKJ KOUC IRKJ KOUC MATE NKLG
                3  |  GFZ   | 8 9 8 9 BRAZ KERG TSKB BRAZ KERG TSKB
                3  |  GRG   | 21 21 IRKJ LPGS NKLG REUN IRKJ LPGS REUN
                3  |  JPL   | 9
                3  |  MIT   | 3 21 3 21 BOR1 SYDN BOR1 SYDN
                4  |  COD   | 9 26 9 26 KOUC KOUC
                4  |  EMR   | 8 HERS HERS MCM4 YELL
                4  |  ESA   | 9 26 9 26 CAGZ IRKJ KOUC CAGZ IRKJ KERG KOUC WES2
                4  |  GFZ   | 9 26 9 26 BRAZ BRAZ KERG YAKT
                4  |  GRG   | IRKJ LPGS IRKJ
                4  |  JPL   | 8 24 26
                4  |  MIT   | 21 26 8 21 26 NICO NICO
                5  |  COD   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  COD   | 21 22 23 24 25 26 27 28 29 31 32 1 2 3 4 5 6 7 8
                5  |  COD   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                5  |  COD   | 26 27 28 29 31 32
                5  |  EMR   | 24 24 YELL HARB YELL
                5  |  ESA   | 8 9 8 9 CHUR IRKJ KOUC NTUS SCOR IRKJ KOUC SCOR UNSA
                5  |  GFZ   | 9 8 9 MAW1 MCM4 THTI CHUR MAW1 MCM4 THTI
                5  |  GRG   | NTUS CHUR NTUS
                5  |  JPL   | 8 9 YELL
                5  |  MIT   | MAW1 OPMT USNO MAW1 MDVJ OPMT SYOG USNO
                6  |  COD   | 8 KOUC KOUC
                6  |  ESA   | 8 IRKJ KOUC NTUS IRKJ KOUC NTUS UNSA
                6  |  GFZ   | 8 8
                6  |  GRG   | AREQ IRKJ MAW1 USNO AREQ IRKJ MAW1 USNO
                6  |  MIT   | 9 9 15

    
 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  |  MIT   | ~05:30 | ~ 0.37 ns
                1  |  COD   | ~13:50 | ~ -0.72 ns
                4  |  GRG   | ~14:10 | ~ 0.16 ns
                5  |  GRG   | ~12:30 | ~ -0.22 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 table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G09 | 2013_08_13 | 2013045 

 8. 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
               ----+--------+---------------
                4  |  COD   |  24

 9. 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 G24 |  4 |    |  4 |  4 |  4 |  4 |  4 |

10. 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.

11. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .2    -.7     .2     -17     45    -11     .09
       EMR  |   0 |    2.2    -.8   -8.1     -11    -14    -26     .01
       ESA  |   0 |   -3.0   -2.9    8.2      67     -5    -25    -.22
       GFZ  |   0 |     .4     .1    -.3     -15    -22    -19    -.37
       GRG  |   0 |   -4.2   -1.5    7.0     -21     49    -28     .23
       JPL  |   0 |   -5.8   -1.5   -3.4     -45     53    -27     .34
       MIT  |   0 |   -1.8   -3.3    4.9      -3     16    -47     .18
       NGS  |   0 |   -1.8   -7.2   -1.8     -29     21    -35     .18
       SIO  |   0 |   -2.7   -1.1  -12.5     -41    -48    -87     .07

       COD  |   1 |     .3    1.2    -.9     -17     25    -30     .35
       EMR  |   1 |   -4.5    3.6   -5.4      -6    -21    -17     .28
       ESA  |   1 |   -1.4     .2   16.3      87    -63     -4     .09
       GFZ  |   1 |     .5    -.7    -.4     -19    -40      3    -.28
       GRG  |   1 |    -.7  -10.8   16.8     -37     36    -19     .53
       JPL  |   1 |   -9.4   -2.5   -4.0     -67     37    -21     .12
       MIT  |   1 |    -.5    -.7    3.0     -12     12    -63     .29
       NGS  |   1 |    1.2   -3.4    9.8     -62    -21    -10     .28
       SIO  |   1 |   -5.5   -2.6  -18.1     -57    -23   -118     .27

       COD  |   2 |     .2     .1    -.5     -21     29    -11     .14
       EMR  |   2 |    -.9    2.1    1.9      -4    -12    -13     .12
       ESA  |   2 |    1.4   -1.3   14.3      81    -38    -19    -.19
       GFZ  |   2 |     .2    -.1    -.5     -19    -38      0    -.49
       GRG  |   2 |    3.3   -5.9   18.8     -32     36    -10     .14
       JPL  |   2 |   -2.3    6.6    6.8     -66      9     -5     .06
       MIT  |   2 |    2.2    -.2    5.9      -1     27    -50     .12
       NGS  |   2 |   -1.2   -4.4    8.3     -59     -2    -18     .22
       SIO  |   2 |   -2.6   -1.4   -8.3     -28    -38    -85     .01

       COD  |   3 |     .0    1.4    -.7     -22     55    -15     .14
       EMR  |   3 |    1.4    1.3    -.2      -1     -8     -1     .11
       ESA  |   3 |    1.9    -.3   16.7      91    -51    -15     .07
       GFZ  |   3 |     .1     .1    -.6     -21    -37      2    -.34
       GRG  |   3 |     .9   -3.0    4.6     -25     11     -4     .19
       JPL  |   3 |    -.9    6.0   -6.2     -88     35    -22     .10
       MIT  |   3 |     .3    6.2    7.7      -1     17    -49     .14
       NGS  |   3 |   -2.5   -2.7    5.5     -44      9    -18     .26
       SIO  |   3 |    -.5    2.4    6.3       3    -12   -141    -.03

       COD  |   4 |     .1    -.3    -.6     -29     30      6     .14
       EMR  |   4 |  -12.1    2.7    -.3       0    -19    -10     .15
       ESA  |   4 |   -5.6    2.1   21.6      89   -133     58    -.05
       GFZ  |   4 |     .7    -.2    -.4     -18    -34      1    -.49
       GRG  |   4 |   -5.4     .3   24.4     -39     26      1     .26
       JPL  |   4 |   -8.8    1.3    9.9     -78     14    -34     .08
       MIT  |   4 |   -4.9    6.1   10.2       1     23    -59    -.04
       NGS  |   4 |   -1.5    5.3    9.7     -18      9     16     .07
       SIO  |   4 |   -2.3    2.0  -21.9     -31    -87   -229    -.24

       COD  |   5 |    -.3     .7    -.3     -28     48      0     .09
       EMR  |   5 |   11.4    4.1    6.8     -13     -3    -24    -.08
       ESA  |   5 |     .1   -1.8   18.9      54    -54    -26    -.20
       GFZ  |   5 |     .5     .2     .1     -39    -36     -8    -.62
       GRG  |   5 |    5.3   -7.7   20.1     -23     40      7     .23
       JPL  |   5 |   -4.2     .0    5.9     -56     51    -36     .24
       MIT  |   5 |    2.0    3.4   10.9      -9     10    -50     .14
       NGS  |   5 |    4.0   -1.9   12.9     -72    -25     17     .02
       SIO  |   5 |   -1.6    1.5  -12.3     -43    -51   -183     .02

       COD  |   6 |    -.5     .4    -.6     -32     42     -6     .02
       EMR  |   6 |   -2.1    2.6    6.0     -12     -6    -32    -.07
       ESA  |   6 |    1.3    1.4   19.6      73    -77     -8    -.23
       GFZ  |   6 |     .4    -.1     .3     -38    -30     -1    -.80
       GRG  |   6 |    5.5   -5.8   16.4     -32     27     -6     .10
       JPL  |   6 |   -3.7    5.4    6.5     -96     54    -36     .14
       MIT  |   6 |   -3.0     .5    6.3      -7     14    -49     .03
       NGS  |   6 |    1.0    4.1   13.8     -39    -15     13     .14
       SIO  |   6 |   -1.8    2.1   -8.8      -6    -22    -86    -.04


12. 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.

13. 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.


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 1.1753.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1753.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 2.1753.[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 3.1753.[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 5.1753.0-6). 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 1753 summary.                       (Aug 11, 2013 - Aug 17, 2013)

Table 1.1753.a   GPS week: 1753   MJD: 56515.000-56521.000

         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  259|    0     0     1     0    29    19   .23   10   10 |   -1199     -85    465    617
        |    0     0     1    13    15    13   .03           |     526     597
emr   80|    0     0    -2    14     2     9   .11   16   16 |    1377     111     15     99
        |    2     1     1    26    15    16   .03           |     825    1220
esa  150|    0     0     0    28   -25   -11  -.10    7    6 |    -507    -149     17    142
        |    0     0     1    15    23     8   .02           |     919    1254
gfz  192|    0     2    -1    -4   -19   -14  -.55   11   10 |      66     -84     13     92
        |    1     0     2    33    34    10   .04           |     363     589
grg  133|    1     0     9    -9    14    14   .44   14   14 |     -41     -34     19    152
        |    1     0     1    20    19    20   .07           |     247     303
igr  n/a|    0     0     0   -13    14    -8  -.33    5    5 |  -11412    -130     17     77
        |    0     0     1    17    21    15   .02           |    1231    1104
jpl   80|    0     0    -4   -20    18   -16   .17   15   15 |     761      19     16    101
        |    2     0     2    11    20    14   .04           |     801    1057
mit  231|    0     0     0     8    16     6  -.10   11   10 |     -28     -93     27    249
        |    1     0     1    26    26    22   .05           |     366     310
ngs  240|    0     0     0   -45   -12    -6   .10   12   10 |  169595  -61751   1692   3413
        |    1     0     1    38    49    27   .03           |  519009  464684
sio  443|    1     0    -2   -14   -46  -151  -.60   19   19 |     ---     ---    ---    ---
        |    1     0     1    56    27    77   .04           |     ---     ---


Table 1.1753.b   GPS week : 1753   MJD: 56515.000-56521.000   

         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    4    4    4    4    4    4 |
   2  |    4    4    4    5    5    5    5 |
   3  |    4    4    3    4    4    4    4 |
   4  |    3    3    3    3    4    4    4 |
   5  |    4    4    4    4    4    5    5 |
   6  |    4    4   11    3    4    4    4 |
   7  |    4    5    4    4    5    5    4 |
   8  |    4    4    4    4    5    6    7 |
   9  |    4    5    0    6    5    6    6 |
  10  |    3    3    3    3    4    4    4 |
  11  |    4    4    4    4    4    4    4 |
  12  |    4    4    4    4    6    5    5 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    5    4    4    4    4    5 |
  15  |    4    5    5    5    5    5    5 |
  16  |    5    7    5    5    5    5    5 |
  17  |    5    5    5    5    5    5    5 |
  18  |    5    5    4    4    5    5    4 |
  19  |    4    4    4    4    4    4    4 |
  20  |    4    4    4    4    5    4    4 |
  21  |    5    5    5    6    5    5    5 |
  22  |    4    4    4    4    4    5    5 |
  23  |    4    5    5    4    4    4    5 |
  24  |    5    5    5    4   12    5    5 |
  25  |    4    5    4    3    4    4    4 |
  26  |    3    4    4    4    4    4    4 |
  27  |    4    5    5    5    5    5    4 |
  28  |    4    5    4    4    5    5    5 |
  29  |    5    5    4    4    5    5    5 |
  31  |    5    6    4    4    6    5    5 |
  32  |    4    3    3    3    4    4    4 |



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         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 2.1753.0   GPS week: 1753   Day: 0   MJD: 56515.000                            

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  263|    0    -1     1    20    41    36   .21   10   10 |   -1147     178     23    433
emr   80|    0     0    -5    57    17    33   .11   16   16 |    1772     263     13    129
esa  150|    0     0     2    55    26   -18  -.09    6    6 |    -567     646     17    168
gfz  192|    0     2     0   -66   -61   -30  -.53    9    9 |    -248     626     13    110
grg  134|    2     0     6    -8    23     0   .38   15   14 |     102    -210     18    164
igr  n/a|    0     0     1    14     9     7  -.30    4    4 |   -9881    -354     18     91
jpl   80|    1     0    -2    -2    37   -11   .20   14   14 |    1191     341     15    126
mit  238|    0     0     0   -24    -6    26  -.01   12   11 |     -75    -243     39    387
ngs  240|    0     0    -3   -49   -59   -11   .15    9    8 |   -1155     229   1689   2954
sio  442|    0     0    -1   -66   -67   -72  -.57   20   17 |     ---     ---    ---    ---

Table 2.1753.1   GPS week: 1753   Day: 1   MJD: 56516.000                            

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  265|    1    -1     1    -3     4     8   .19   10   10 |   -1258     676     19     98
emr   80|   -1     0    -4    16     1    17   .10   15   15 |    2376     307     15     95
esa  150|    0     0     1    18   -31   -21  -.10    8    7 |     682   -1280     19    202
gfz  196|    1     0    -3    36    38   -22  -.56   11   10 |     625     126     12     90
grg  136|    0     0     9   -37    37     9   .38   14   13 |      13     244     22    170
igr  n/a|    0     0     1   -17   -12     1  -.35    5    5 |  -10012    -158     19     73
jpl   80|    0     1    -3   -33    20     4   .16   14   13 |    1768     228     15     96
mit  237|    0    -1     0    52    31    26  -.06   11   10 |      27     238     25    219
ngs  243|    0     0     0   -72   -58    -6   .09   12   10 |    -965     329   1469   3608
sio  449|    0     0    -2   -37   -38  -125  -.58   19   18 |     ---     ---    ---    ---

Table 2.1753.2   GPS week: 1753   Day: 2   MJD: 56517.000                            

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  263|    1     0     0     7    24     8   .26    9    9 |   -1023    -118     17     95
emr   80|    0     0     0    -3   -19    16   .07   15   15 |    2408   -2118     15     96
esa  150|    0     0     0    22   -39   -10  -.11    6    6 |     335   -1633     18    147
gfz  193|   -2     3     0   -25   -33   -10  -.60   11   11 |     173    -994     12     80
grg  133|    0     0    10   -32    22   -14   .42   14   14 |     318    -417     17    156
igr  n/a|    0     0     1    -9    -7     8  -.32    5    5 |  -10580   -2101     16     80
jpl   80|    1     0    -8   -14     6   -13   .21   14   15 |    1699   -2066     16    100
mit  235|    0     0     0    -5     8    27  -.11    9    9 |     665    -432     29    217
ngs  241|   -2     2     0    17    52   -31   .08   11   10 | -147729  567698   1471   2891
sio  448|    1     0    -2   -40   -78   -79  -.68   18   18 |     ---     ---    ---    ---

Table 2.1753.3   GPS week: 1753   Day: 3   MJD: 56518.000                            

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  261|    1    -1     0    -4    18    17   .28    9    9 |    -492    -874     20     92
emr   80|    1     0     0    -5    14     0   .14   15   15 |    1252    -626     17    102
esa  150|    0     0    -1    25   -37   -14  -.06    6    6 |     104   -1340     18    122
gfz  196|   -2     1     1    -1    -2   -10  -.59   10   10 |     386    -669     11     92
grg  139|    1     0     8   -10   -12    11   .41   16   14 |     -93    -111     16    133
igr  n/a|    0     0     1   -25    16   -12  -.32    6    5 |  -11812    -610     16     75
jpl   80|    1     0    -2   -36    21   -15   .18   15   15 |     469    -385     16    100
mit  227|    0     0     1     6    27    -1  -.11   11   10 |    -334      55     22    246
ngs  243|   -2     1     0   -11    21    23   .10   11    9 | 1340049 -999999   1869   3898
sio  442|    1     1     0   -26   -14  -170  -.57   18   18 |     ---     ---    ---    ---

Table 2.1753.4   GPS week: 1753   Day: 4   MJD: 56519.000                            

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  259|    0    -1     3   -14    40    36   .23   10   10 |    -835    -706     19     93
emr   80|   -5     2    -2   -18    18    -6   .16   16   16 |     668     368     16     83
esa  150|    0    -1     0    14   -26    -1  -.09    6    6 |    -893    1170     18    119
gfz  193|    0     1    -4     9   -49     0  -.49   10   10 |    -389     523     14     89
grg  135|    3     1    12    -1    19    24   .46   15   14 |    -277     298     21    144
igr  n/a|    0    -1     0   -27    48    -8  -.31    5    5 |  -12201     301     20     65
jpl   80|   -2     0    -4   -21    34   -10   .19   16   16 |     448     360     18     97
mit  229|    1    -1    -1    22    43     7  -.11   11    9 |    -123      41     22    195
ngs  241|    0     0     0   -33   -72   -50   .11   15   14 |    -776    -752   1638   3755
sio  446|    4     0    -4   -45   -78  -257  -.61   20   18 |     ---     ---    ---    ---

Table 2.1753.5   GPS week: 1753   Day: 5   MJD: 56520.000                            

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  255|    0     0     3   -12    24    25   .22   10   10 |   -2155    -322   3139   3416
emr   81|    3     0    -2    38   -10   -13   .08   17   17 |     363     790     15    101
esa  150|    0     0    -2    42   -35   -14  -.10    7    6 |   -1670      90     18    120
gfz  190|   -2     2    -3    -3     3    -9  -.55   12   11 |    -180     -96     15     97
grg  129|    2     0     7    14    24    48   .43   13   13 |      70    -324     21    155
igr  n/a|    0     0     0     4    18   -21  -.35    5    5 |  -12731     554     19     90
jpl   80|    0     0    -3   -11   -22   -39   .12   15   15 |     -11     277     17    102
mit  229|    0     0     0   -14    37    -7  -.15   12   10 |     115    -534     23    239
ngs  238|   -1     0     0   -85     4     7   .06   13   11 |    -806    -316   1741   3268
sio  435|    0     0    -3    16   -24  -252  -.63   20   21 |     ---     ---    ---    ---

Table 2.1753.6   GPS week: 1753   Day: 6   MJD: 56521.000                            

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  253|    0    -1     1    11    51     5   .20   10   10 |   -1486     569     24     94
emr   80|   -2    -1    -2    13    -5    15   .11   16   16 |     806    1797     17     91
esa  150|    2     0     0    17   -36     3  -.14    7    7 |   -1543    1304     17    121
gfz  188|    0     2    -2    17   -29   -17  -.55   12   11 |      96    -107     16     92
grg  130|    2     0     9    11   -12    22   .58   15   14 |    -421     279     24    142
igr  n/a|    0     0     1   -32    31   -33  -.34    5    4 |  -12668    1452     16     67
jpl   80|   -3     1    -4   -21    29   -32   .12   15   15 |    -237    1384     16     90
mit  228|   -1     0    -1    18   -27   -32  -.17   14   13 |    -474     218     30    246
ngs  236|    1     0     1   -84    25    23   .14   11    9 |   -1451     551   1968   3520
sio  445|    1     0    -5   101   -22  -104  -.56   22   21 |     ---     ---    ---    ---

       
       
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 3.1753.0   GPS week: 1753   Day: 0   MJD: 56515.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8   17    5    7   11    6   10   10    8    9    3 |    21   22   17   10   24   12   22   15   20   14    15
   2  |   12   16    5    9   14    4   16   15   10   19    4 |    29   26   19   16   28   19   22   22   27   20    20
   3  |    9   11    5    7   15    5    9   14    5   19    3 |    28   31   23   17   24   21   29   25   26   29    23
   4  |    7   13    4    8   10    5   11    8    6   20    3 |    17   26   15   14   20   17   25   19   18   24    16
   5  |    8   16    5    7    8    6   14    7    8   23    3 |    30   34   29   29   32   28   35   28   30   29    29
   6  |    8   12    6    7   17    5   10   16    8   21    3 |    22   27   19   12   22   16   24   18   22   20    19
   7E |    8   18    6   10   13    3   17   13    9    9    4 |    35   36   29   26   36   29   34   35   33   28    30
   8E |    9   14    8    8   12    3   13   10    7   20    3 |    30   38   35   38   29   35   37   32   32   30    33
   9E |   11   21    6    9   14    4   14   13    6   21    4 |    22   28   13   15   15   18   21   16   15   14    21
  10  |    8   10    3    6   13    4    7    8   10   14    3 |    22   27   24   25   35   26   25   24   29   22    24
  11E |    8   15    5    8   15    4   11   14   11    8    4 |    29   30   21   15   33   19   28   26   26   20    23
  12  |   10   14    6    9   18    5   16    9    8   26    4 |    24   26   22   21   30   20   27   21   24   26    21
  13  |    9   17    5    7   15    4   14    9    6   18    3 |    26   31   24   20   39   22   30   22   24   18    24
  14  |   10   16    5   12   15    4   17   11    7   25    4 |    25   27   25   28   34   25   24   29   27   32    24
  15  |    9   18    6   10   16    5   17    9   11   24    4 |    32   37   28   30   37   27   38   30   32   27    30
  16  |   13   20    7    9   19    5   17   15    6   35    4 |    29   30   22   25   30   21   29   23   28   34    23
  17  |   17   15    4   12   17    5   15   11   10   16    4 |    33   26   19   15   32   19   29   22   28   19    22
  18  |   12   16    7   10   10    4   15   20   11   28    4 |    20   21   21   22   24   20   22   33   21   26    19
  19  |    8   15    6    8   19    4   13   11   10   17    4 |    27   30   19   15   31   18   26   19   25   17    21
  20  |    9   13    6   13   13    4   13   11    7   16    3 |    28   29   27   30   34   28   30   30   27   25    28
  21  |   11   20   11   13   19    4   16   15   12   19    5 |    20   23   21   13   25   16   20   17   17   18    15
  22  |   12   17    4    8   12    3   15   15   10   26    4 |    29   26   26   28   36   27   28   37   28   32    27
  23  |    8   18    6    9   15    3   17   10    7   21    4 |    23   27   22   18   32   19   26   18   22   17    20
  24E |    8   14    6   13   19    5   11   15   12   12    4 |   221  219  220  220  223  220  160  220  137   10   219
  25  |   10   12    7    7   18    4   13   16   10   14    4 |    19   23   21   14   31   19   29   22   23   16    20
  26  |    7   12    6    7   11    2    9    7   11   13    3 |    20   24   19   16   25   17   23   21   24   13    19
 X27  |   10   14    3   11  ---    6   11   16    9   15    4 |    45   48   43   39  ---   40   47   39   41   43    42
  28  |   10   16    5   12   17    4   14    8   13   27    4 |    26   29   23   28   32   22   29   26   27   27    24
  29  |   11   21    6   11   15    4   18   14   12   20    4 |    21   28   14   15   23   16   26   21   24   18    16
  31E |   11   17    5   11   22    6   18    9    9   11    4 |    27   26   18   17   21   17   25   23   24   15    19
  32  |   14    9    4    8   14    4    8    8    6   15    3 |    19   20   12   12   23   11   18   15   14   13    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   16    6    9   15    4   14   12    9   20      |T   32   34   28   27   35   27   31   30   28   22    29
 WRMS |   10   16    6    9   14    4   14   11    8   17      |NE  25   27   22   20   29   21   27   23   25   23    22
 MEDI |    9   16    6    9   15    4   14   11    9   19      |MD  26   27   22   18   30   20   27   23   26   20    22

Table 3.1753.1   GPS week: 1753   Day: 1   MJD: 56516.000                            

        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   17    8    8   14    6   12    9   15   12    4 |    21   22   18   20   22   15   21   19   23   17    17
   2  |   12   15    7    9   14    5   16    7    9   16    4 |    22   20   18   14   26   15   19   16   22   14    16
   3  |    7   11    8    9   14    6    9    9   11   15    3 |    24   25   23   18   24   17   24   22   23   20    21
   4  |    6   11    6    7    9    5   13   10    9   17    3 |    21   22   17   12   18   15   22   18   18   20    17
   5  |   11   14    7    7   10    6   13    8    9   22    3 |    25   25   20   19   21   20   24   18   22   20    19
   6  |    7   11    8    8   13    5    9   10   11   12    3 |    21   25   19   17   22   17   24   21   21   19    19
   7E |    7   15    7   12   10    3   17   14   10   11    4 |    24   23   21   19   26   20   24   25   27   20    21
   8E |   10   13    9   12   11    5   13    7   12   20    4 |    26   33   30   36   24   31   31   28   30   26    28
   9E |   10   21    9   15   12    6   12   14   14   21    5 |    25   30   14   18   19   16   23   21   24   21    25
  10  |    9    7    4    7   11    4    7    6    7   14    2 |    16   15   12   17   17   14   16   15   17   16    13
  11E |    7   14    7    8   14    4   12   10   15   10    4 |    26   26   19   18   32   17   25   21   27   19    21
  12  |   10   14    6   10   16    4   16   12    8   26    4 |    22   23   21   20   27   18   26   18   24   24    20
  13  |    7   16    7    9   17    4   14    8   11   17    4 |    18   25   18   14   33   15   26   17   22   15    18
  14  |   14   17    9   10   14    5   13   14   14   20    5 |    18   24   22   18   29   19   24   25   20   25    19
  15  |   10   17    8   14   12    6   18    8   14   23    4 |    25   28   22   23   28   20   29   22   25   18    22
  16  |   12   19   26   14   17    6   18    9   16   35    6 |    27   24   39   22   24   18   24   18   23   30    21
  17  |   20   16    7   10   14    6   15   15   10   15    5 |    34   24   20   17   32   20   26   26   30   19    23
  18  |    9   15    7   13   11    3   12   17   12   28    4 |    15   19   20   17   21   15   21   24   15   22    15
  19  |    5   16    6    9   18    5   14    9   14   14    4 |    23   25   20   12   31   16   24   19   23   15    19
  20  |    9   13    8   14   13    3   14   11   11   14    4 |    30   28   26   28   29   25   27   26   29   25    26
  21  |    8   19    7   13   19    4   10   12   10   18    4 |    14   23   13   19   26   12   18   16   18   19    13
  22  |    9   16    5    9   13    5   11   10   11   28    4 |    19   22   21   19   27   19   24   24   20   24    19
  23  |    7   18    9    9   13    3   18    9   10   21    4 |    19   24   18   14   27   13   24   16   20   14    16
  24E |   10   11    9   15   12    5   12   16   18   12    5 |   121  123  121  119  117  121  115  121   95   13   120
  25  |    9   12    6    7   16    4   14   15   13   12    4 |    17   23   20   14   26   17   30   18   21   16    18
  26  |    6   10    7   11   11    4   10    9   13   10    3 |    18   19   15   15   20   13   18   16   19   12    15
 X27  |   11   14    9   10  ---    7   13   12   11   12    4 |    35   35   35   28  ---   30   37   29   34   31    32
  28  |   11   15    7   14   13    5   14    9   12   26    4 |    25   24   22   24   26   18   25   22   26   27    22
  29  |   11   21    6   15   16    5   16   12   12   16    5 |    18   25   14   20   22   15   23   19   20   14    15
  31E |   21   16    8   10   19    6   15   10   14   12    5 |    35   25   20   18   20   21   24   16   26   19    20
  32  |   12    9    4    8   11    4    9    8   10   15    3 |    17   14   12    8   18   12   13   13   13   15    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    8   11   14    5   14   11   12   19      |T   25   27   23   21   27   21   26   23   25   19    22
 WRMS |   10   15    7   10   13    5   13   10   10   18      |NE  21   23   20   17   24   17   23   19   21   19    18
 MEDI |    9   15    7   10   13    5   13   10   11   16      |MD  22   24   20   18   26   17   24   19   23   19    19

Table 3.1753.2   GPS week: 1753   Day: 2   MJD: 56517.000                            

        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   24    6    8   10    7   11    7   11   13    4 |    17   27   13   10   22   12   21   13   17   12    13
   2  |    9   14    6   10   12    4   18   10   10   15    4 |    23   20   15   16   25   15   20   18   22   11    17
   3  |    5   12    4    9   12    4   10   11   10   16    3 |    25   28   21   16   23   19   28   22   27   20    22
   4  |    5   11    4   10    9    4   13    7    9   18    3 |    14   21   12   13   16   12   20   16   17   20    13
   5  |   10   14    6    6   10    5   15    8   13   21    3 |    24   28   24   22   26   21   28   21   28   22    23
  X6  |   16   17  ---  ---   27   16  ---   12   33  ---   10 |    25   25  ---  ---   35   22  ---   18   40  ---    22
   7E |    7   15    5    8   10    4   14   13    9   12    3 |    18   18   15   16   19   16   21   19   20   18    16
   8E |    8   13   10   11   15    4   12    8    9   19    4 |    27   33   31   37   24   31   34   28   27   25    28
  X9E |    4  ---  ---  ---  ---   70  ---  ---  ---  ---    0 |    48  ---  ---  ---  ---   51  ---  ---  ---  ---    47
  10  |    5    7    3    9   11    4    8    5    9   11    2 |    18   20   18   22   26   21   17   20   23   18    19
  11E |    7   14    6   10   13    6   13   10    7    8    3 |    26   26   22   15   33   20   25   24   25   21    23
  12  |   10   15    7   12   15    4   14    9   13   25    4 |    22   19   19   17   28   17   24   19   24   23    18
  13  |    6   18    7   11   15    4   19    7   12   16    4 |    20   27   19   19   34   18   27   17   21   15    19
  14  |   11   16    8   14   10    4   16   10   10   20    4 |    20   21   20   25   29   16   21   21   19   22    19
  15  |   11   16    7   12   11    7   20    9   14   20    4 |    27   29   22   23   30   22   33   24   27   20    23
  16  |   14   21    7   12   18    4   16    9   11   33    5 |    28   26   23   21   28   17   26   19   22   28    20
  17  |   11   16    6   13   14    4   16   14   16   12    4 |    27   21   13   11   28   13   22   18   29   13    17
  18  |   11   12    6   11   10    4   14   10    8   23    3 |    18   20   15   19   20   12   20   18   18   15    15
  19  |    7   17    5   10   18    5   13    8   12   12    4 |    23   26   16   14   32   16   24   17   21   13    18
  20  |    9   13    6   14   12    4   15    9   14   19    4 |    28   27   25   29   30   24   27   25   26   22    25
  21  |   12   17    5   14   15    6   14   11   11   11    4 |    19   21   13   18   27   12   20   13   22   13    14
  22  |   10   16    4   10   10    4   17    8    9   27    3 |    21   22   19   24   24   17   23   23   20   24    19
  23  |    7   19    7   12   13    3   20    9   10   20    4 |    20   25   17   17   27   16   25   15   22   15    17
  24E |    9    9    6   17   18    7   14   14   16   10    4 |   206  203  204  207  205  205  163  205  163   18   205
  25  |    6   11    6   13   14    4   12    6    6   10    3 |    23   22   21   18   28   16   31   16   20   14    19
  26  |    8    9    7    8   15    4   12    9   11    9    3 |    16   19   15   14   22   13   17   18   17   12    14
 X27  |    8   14    5   12  ---    6   13   12   14   12    4 |    37   38   30   30  ---   32   38   31   39   33    33
  28  |    8   16    4   13   14    4   14    9   14   25    4 |    24   24   21   23   26   17   27   23   20   26    21
  29  |   11   19    7   10   15    5   14    8    9   11    4 |    19   22   13   16   22   13   19   15   23   12    14
  31E |   11   14    5   12   19    5   14    8   12   14    4 |    28   21   18   13   19   17   24   22   25   17    19
  32  |    9   10    4   11   13    5    8    6   11   16    3 |    15   14   11   14   18   10   16   13   14   13    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   15    6   11   14    5   14    9   11   18      |T   29   29   25   25   31   24   29   25   27   18    25
 WRMS |    9   15    6   11   14    5   15    9   10   18      |NE  22   23   18   18   26   16   23   18   23   18    18
 MEDI |    9   14    6   11   13    4   14    9   11   16      |MD  23   22   19   18   26   17   24   19   22   18    19

Table 3.1753.3   GPS week: 1753   Day: 3   MJD: 56518.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   20    5    7   12    6   10    6   12   11    3 |    22   24   17   16   25   13   21   17   24   16    17
   2  |   13   15    7    8   14    5   21   13    9   15    4 |    23   20   18   16   28   14   23   22   22   14    18
   3  |    7   13    5   12   12    5   11   12    8   13    3 |    24   24   19   14   22   16   25   22   23   21    19
   4  |    8   12    6    7   10    4   12   10    8   18    3 |    19   24   19   15   20   13   22   18   16   21    17
   5  |    8   16    6    9   11    3   14   11    7   22    3 |    31   32   28   27   28   26   32   25   28   28    27
   6  |    8   13    5    8   13    6   11    7    8   13    3 |    20   21   18   13   18   10   23   15   22   16    15
   7E |    9   17    5   11   11    5   17   11   10   14    4 |    32   25   23   27   29   23   28   28   27   27    25
   8E |    9   14    7   13   15    5   17   11   11   20    4 |    27   29   28   37   23   29   30   28   25   24    27
   9E |   10   18    9   11   14   20   15   11   30   16    5 |    36   34   25   26   33   35   35   29   43   26    34
  10  |    8    8    3    9   14    5   10    6    8   12    3 |    16   19   16   22   25   18   20   21   17   19    17
  11E |    8   13    6    7   12    4   13    9    9    8    3 |    27   25   21   17   34   17   24   24   27   21    22
  12  |   11   13    5    7   14    4   16   11    8   25    3 |    25   23   22   19   28   18   27   22   27   27    21
  13  |    5   17    5    9   17    5   15    8   10   16    4 |    21   26   18   23   37   19   27   19   22   18    20
  14  |    9   17    5   12   12    4   13    9   10   21    4 |    23   25   23   29   29   22   26   24   23   25    23
  15  |   12   19    7   12   15    3   22    9   13   21    4 |    28   34   23   22   30   22   36   23   26   24    24
  16  |   14   18    5   13   14    6   16   10   10   34    4 |    29   23   23   23   26   17   24   18   23   28    20
  17  |   10   15    7   11   14    5   18   21   13   13    5 |    32   24   20   20   32   20   24   26   27   18    22
  18  |   12   13    5   10    9    3   16    9    7   24    3 |    20   20   18   21   22   14   20   21   17   16    17
  19  |    6   17    5   12   15    4   13   10    9   12    4 |    23   25   17   10   29   13   22   17   22   14    17
  20  |    9   13    6   12   13    5   17   13   12   15    4 |    25   25   23   25   30   22   28   26   23   21    23
  21  |   11   17    4   10   45    6   17   11    9   11    6 |    17   19   15   14   47   10   18   12   21   12    14
  22  |   10   16    4    8   10    3   14   11   12   27    3 |    26   25   23   28   29   22   25   27   18   28    23
  23  |    7   18    5   11   14    4   16    9    9   21    4 |    21   24   18   20   29   16   24   18   18   21    18
  24E |   11   13    5   10   15    5   18   12   13   18    4 |   262  256  257  258  262  257  206  262  352   17   259
  25  |    9   11    5    6   14    3   13    6    9   10    3 |    22   24   22   13   26   16   30   16   20   14    19
  26  |    8   13    7    7   13    3   13   12   10   11    3 |    18   19   16   17   21   13   18   21   16   15    15
 X27  |    9   14    7   12  ---    6   15   12   13   12    4 |    42   42   36   32  ---   34   42   35   35   39    36
  28  |    9   18    6   13   14    5   14   12    8   25    4 |    27   25   26   29   32   20   27   27   29   28    25
  29  |    9   21    5   10   12    4   16    9    9   12    4 |    24   23   18   18   22   14   23   17   25   17    18
  31E |    9   15    5    8   20    5   17    9   11   16    4 |    24   20   15   14   19   13   23   17   23   20    16
  32  |    9    8    5   10   13    6    9    9   10   16    3 |    17   14   13   12   18   11   15   12   10   14    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   15    6   10   16    6   15   11   11   18      |T   32   32   28   28   35   26   31   29   33   20    28
 WRMS |    9   15    6   10   14    5   15   10    9   18      |NE  23   24   20   19   27   17   24   20   22   20    19
 MEDI |    9   15    5   10   14    5   15   10   10   16      |MD  24   24   20   20   28   17   24   22   23   21    20

Table 3.1753.4   GPS week: 1753   Day: 4   MJD: 56519.000                            

        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   15    6   10   10    5   11    6   12   12    3 |    21   24   20   16   23   18   26   21   23   19    18
   2  |   11   15    7    9   12    5   21   13   13   15    4 |    25   23   19   17   26   17   21   23   23   17    19
   3  |    8   15    4    7   14    7   14   12   13   19    4 |    25   30   24   19   26   19   33   24   27   23    23
   4  |   10   11    4   10   13    5   10    7   15   20    3 |    20   24   17   19   16   15   20   18   18   21    17
   5  |    8   15    7    7    9    7   16    7   11   21    3 |    21   28   23   23   24   24   27   20   24   24    21
   6  |    9   14    4    9   11    6   14    8   14   18    3 |    21   23   21   17   24   19   25   19   22   18    19
   7E |    8   14    7   12   16    5   18   15   14    9    4 |    22   23   16   15   21   14   23   22   21   17    16
   8E |   10   14   10   11   13    5   16   11   14   33    4 |    25   34   30   38   23   30   34   29   29   34    27
  X9E |   11   19    8    8   11   12   17   11  ---   20    4 |    30   35   26   26   29   28   32   31  ---   30    28
  10  |   10   11    6    8   13    5   14    7   16   14    3 |    16   25   20   20   26   21   24   22   26   17    20
  11E |    9   11    5    9   12    5   11    8   12   13    3 |    26   27   25   18   34   20   30   28   27   24    24
  12  |   13   18    7   15   15    5   18   16   17   27    5 |    22   31   19   19   26   16   25   24   25   24    18
  13  |    6   17    4    7   17    4   15    9   15   17    4 |    21   29   19   19   37   19   29   19   21   18    20
  14  |    6   19    5   11   12    4   15    8   16   23    4 |    24   31   28   26   33   23   23   23   23   25    23
  15  |   12   18    7   11   15    6   19    9   18   25    4 |    32   32   31   26   32   24   31   27   29   20    26
  16  |   14   23    7   10   13    5   20   11   14   35    5 |    24   26   20   21   25   15   27   19   23   28    18
  17  |    9   15    5   13   17    7   20   11   13   13    4 |    27   33   25   21   29   20   31   25   26   16    24
  18  |   14   17    7   10    8    5   20   10   16   24    4 |    21   28   26   22   24   20   24   21   22   16    20
  19  |    6   20    5    8   15    4   14    9   14   15    4 |    22   26   18   14   31   15   26   18   20   14    17
  20  |    6   14    6   10   16    5   19   16   18   15    4 |    29   24   23   24   28   22   25   30   23   21    23
  21  |    8   24    7   10   16    5   19   14   13   15    5 |    22   32   20   22   32   18   26   23   19   23    20
  22  |    9   18    4    9   10    4   19   11   13   30    4 |    22   29   26   26   27   23   26   25   19   24    22
  23  |    7   17    5    9   15    3   18    9   14   21    4 |    20   25   16   15   28   14   25   15   19   15    16
 X24E |  101   25   15   32   43   11   21   29  ---  ---   12 |   611  613  613  611  619  610  483  608  ---  ---   610
  25  |    9   12    5    8   12    3   13    9   13   13    3 |    18   27   19   15   24   16   26   17   21   14    17
  26  |   11   12    6    9   12    4   15   11   17    7    4 |    25   22   23   17   28   18   19   23   21   17    20
 X27  |    6   15    5   11  ---    8   18   13   12   18    4 |    34   36   28   29  ---   28   37   30   30   33    29
  28  |   11   20    6   12   13    6   19   10   16   26    4 |    26   34   24   29   29   24   30   29   20   28    24
  29  |   12   20    5   12   13    6   17   10   13   14    4 |    22   27   15   18   20   14   21   16   18   16    15
  31E |   10   16    5   11   32    6   17   12   14   15    5 |    23   24   17   16   24   15   22   21   20   17    16
  32  |    8   10    6    7   15    5   11    7   14   17    3 |    17   14   15   14   17   12   15   13   15   16    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   16    6   10   15    5   16   11   15   20      |T   42   46   40   39   46   38   40   41   22   20    39
 WRMS |   10   16    6   10   14    5   16    9   14   18      |NE  23   27   21   20   26   18   25   21   22   20    20
 MEDI |    9   15    6   10   13    5   17   10   14   17      |MD  22   27   21   19   26   19   26   23   22   19    20

Table 3.1753.5   GPS week: 1753   Day: 5   MJD: 56520.000                            

        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   15    7   10   11    7   13    6   14   12    3 |    28   27   21   21   32   20   28   24   27   20    23
   2  |    9   15    7   14   17    4   17   18   12   15    5 |    28   28   25   25   32   23   28   25   26   23    24
   3  |    6   14    5    8   14    6   11    9   13   19    3 |    28   27   23   18   26   20   27   24   25   25    23
   4  |    7   13    5   11   11    5   13    7   11   19    3 |    22   26   18   16   23   19   27   21   21   27    19
   5  |   17   18    8   17    8    6   17   13   10   24    5 |    24   29   19   22   26   19   28   20   20   22    20
   6  |    8   14    5    6   14    6   12    8   14   19    3 |    23   22   18   16   22   17   22   18   22   18    18
   7E |    9   15    6   10    9    4   16   20   13   12    4 |    24   22   20   19   25   18   23   22   26   17    19
   8E |   11   19   11   12   15    6   14   17   19   20    5 |    26   39   28   36   28   31   35   32   34   27    29
   9E |   10   27   11   12   17    7   15   15   28   19    6 |    33   43   26   25   38   29   39   29   47   28    32
  10  |    7   10    5   11   11    4   10    7   12   18    3 |    17   19   15   14   20   16   19   15   12   15    14
  11E |    8   22    8    9   11    4   13    8    8   11    4 |    31   39   25   24   35   25   31   31   30   29    28
  12  |    9   17    9   11   13    4   18   16   13   27    4 |    27   28   20   20   28   18   30   23   24   26    21
  13  |    7   16    5   11   16    6   18    7   11   17    4 |    21   30   17   17   35   19   29   17   24   17    20
  14  |    9   19    7   14   11    6   16    6   12   24    4 |    23   24   21   25   29   20   23   20   21   22    20
  15  |    9   20    7   15    9    5   19    8    9   25    4 |    29   31   22   23   31   23   32   24   25   22    24
  16  |   17   20    8   10   12    5   15   12   11   36    4 |    33   28   27   27   29   24   28   23   28   30    25
  17  |   15   15    5   14   15    5   17   14   10   13    4 |    28   25   18   15   30   14   24   21   20   16    19
  18  |   11   19    7   11    8    4   19   12   11   28    4 |    25   23   22   22   24   20   27   18   20   14    20
  19  |    6   19    8   10   16    4   13   10   14   14    4 |    27   27   20   17   33   18   24   22   25   18    21
  20  |    7   12    5   13   12    4   15   11   14   17    4 |    28   32   25   28   32   24   33   28   25   26    27
  21  |    9   20    5   12   17    7   16   14    9   16    4 |    26   25   23   28   33   24   30   26   27   29    24
  22  |   12   19    4    9   11    4   15   15   10   30    4 |    27   26   22   23   28   23   28   24   25   28    23
  23  |    7   16    5   10   13    4   17    9    7   22    3 |    20   26   16   14   26   16   26   16   20   17    17
 X24E |   11   18    4   17   11   11  ---   10   16  ---    5 |   433  426  423  425  429  420  ---  426  292  ---   425
  25  |    7   11    5    7   12    4   13   13   13   14    3 |    26   24   23   20   26   20   31   19   25   18    22
  26  |    6   15    5   16    9    3   11   13    7   11    3 |    21   24   16   25   26   16   21   20   21   16    19
 X27  |   10   16    5   10  ---    8   12   11   15   18    4 |    40   38   31   26  ---   30   37   34   37   37    33
  28  |    8   18    7   15   13    7   17   13    7   28    4 |    27   29   21   29   33   21   29   25   23   28    23
  29  |    8   21    6   12   11    6   19   12   11   14    4 |    24   25   18   22   23   17   26   18   23   21    19
  31E |    7   13    5   10   23    5   18   15   14   14    5 |    23   21   16   17   20   17   21   22   27   20    18
  32  |   11   11    7    9   16    5   13    9   13   19    4 |    17   19   14   13   16   11   20   13   15   15    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   17    7   12   13    5   15   12   13   20      |T   39   40   33   34   41   33   27   35   33   22    34
 WRMS |   10   17    6   11   13    5   15   10   11   21      |NE  25   26   20   21   27   19   27   21   23   22    21
 MEDI |    9   16    6   11   12    5   15   12   12   18      |MD  26   27   21   22   28   20   28   22   25   22    21

Table 3.1753.6   GPS week: 1753   Day: 6   MJD: 56521.000                            

        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   15    6    9   16    5   14   13   10   17    4 |    30   29   28   25   36   25   32   27   32   23    27
   2  |   14   14    7   12   20    4   14   23    7   21    5 |    52   52   49   49   57   48   45   55   54   41    50
   3  |    8   12    4   11   15    5   12   12    9   18    3 |    24   23   17   17   24   15   26   21   21   22    19
   4  |    7   14    6   10   15    6   16   12    9   24    4 |    24   33   23   26   31   24   34   23   29   28    25
   5  |    8   17    8   15   14    4   17   10    8   25    4 |    36   37   33   35   39   33   37   35   32   32    33
   6  |    7   12    6    8   14    4   12   15    9   20    3 |    20   19   17   11   22   13   22   17   20   18    16
   7E |    8   16    5   11   12    4   14   18   11   11    4 |    23   22   18   21   30   18   22   23   25   20    20
   8E |   15   15   17   14   14    6   12   20   24   25    6 |    27   33   30   37   23   29   35   36   35   25    27
   9E |   11   20   12   12   14    6   16   12   26   18    6 |    39   43   32   31   42   33   43   37   44   29    36
  10  |    8   10    4   12   15    3   10    8    6   26    3 |    21   24   21   27   34   22   27   24   25   17    24
  11E |    8   22    5    9   14    3   12    9    8   14    4 |    36   44   33   29   43   31   37   34   36   30    34
  12  |   10   17    8   13   15    5   17   20    9   27    5 |    20   23   20   22   30   18   24   29   21   27    19
  13  |    7   14    5   11   16    4   17   10   11   23    4 |    28   32   26   29   46   25   31   24   28   20    27
  14  |   11   18    8   12   12    3   16   14   10   23    4 |    27   26   31   31   39   28   24   30   29   32    27
  15  |    9   19    8   22   13    5   21   12    7   25    5 |    31   34   29   36   38   29   36   29   31   26    29
  16  |   15   17    6   13   16    3   15   14    9   35    4 |    27   23   22   25   29   18   24   21   21   27    20
  17  |   11   14    7   12   15    4   16   10   13   19    4 |    26   26   21   21   31   17   25   23   29   20    22
  18  |   11   15    5   12    9    5   15   15    8   23    4 |    20   20   18   22   27   18   22   22   22   16    18
  19  |    8   15    6   13   14    3   15    9   10   18    4 |    26   25   21   21   34   18   26   21   24   18    22
  20  |    9   14    7   13   13    3   15   14   12   18    4 |    39   38   37   38   43   35   37   37   33   32    36
  21  |   11   20    5   11   20    7   15   21   11   19    5 |    20   21   15   14   33   15   21   16   22   21    15
  22  |   12   18    5   10    8    4   16   22    9   30    4 |    25   24   23   26   32   21   27   30   24   33    23
  23  |    8   17    6   12   13    3   17   11   11   25    4 |    20   26   20   23   35   18   24   18   21   18    20
  24E |   15   16    7   18   18    5   12    8   12  ---    5 |   430  420  421  426  423  423  512  424  272  ---   423
  25  |    8   12    7    8   12    5   13   13    8   16    3 |    19   22   22   17   27   19   24   17   19   17    19
  26  |    8   12    4    8   14    4   10   10    9   13    3 |    21   20   20   21   31   19   22   24   19   20    20
 X27  |    6   13    5   11  ---    6   13   15    9   21    4 |    40   42   35   32  ---   35   44   39   41   45    38
  28  |   12   17    7   13   14    4   17   11    7   29    4 |    32   33   27   38   39   28   33   35   30   28    30
  29  |   11   23    7    9   13    5   19   13   11   14    4 |    18   24   13   17   21   12   24   17   20   20    14
  31E |   12   12    6   10   17    5   14   16   12   14    4 |    26   19   19   14   26   15   21   19   24   17    18
  32  |   10   10    4   11   16    5   10   11   11   19    3 |    23   20   20   18   26   18   20   18   19   17    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   16    7   12   15    5   15   14   11   22      |T   40   41   37   38   46   36   44   39   35   24    37
 WRMS |   10   16    7   11   14    4   15   13    9   21      |NE  26   27   24   25   33   22   28   26   26   24    24
 MEDI |    9   15    6   12   14    4   15   13    9   20      |MD  26   26   22   25   32   21   26   24   25   22    23



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 4.1753   GPS week: 1753   MJD: 56515.0-56521.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2948 |U    7     7    16 |U    5     8    23 |     0     0     0 |
emr | emr 2954 |     8     9    20 |U    9    11    31 |     0     0     0 |
esa | esa 2948 |     7     7    17 |U    7     8    25 |     0     0     0 |
gfz | gfz 2941 |U    7     7    16 |U    8    10    27 |U    0     0     0 |
grg | grg 2864 |U   21    21    56 |U   19    24    59 |     0     0     0 |
igr | igr 2953 |     7     7    17 |     7     8    26 |     0     0     0 |
igs | igs 2933 |     7     7    16 |     7     9    28 |     0     0     0 |
jpl | jpl 2927 |    10    11    24 |U   10    12    33 |     0     0     0 |
mit | mit 2962 |     8     8    18 |U   35    14    78 |U    0     0     0 |



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 5.1753.0   GPS week: 1753   Day: 0   MJD: 56515.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     5    12 |     5     8    25 |  ----  ----  ---- |
emr | emr 2968 |     8     7    18 |     9    14    35 |  ----  ----  ---- |
esa | esa 2976 |     6     5    14 |     6     8    27 |  ----  ----  ---- |
gfz | gfz 2968 |     6     5    13 |     6     9    24 |  ----  ----  ---- |
grg | grg 2880 |    10     8    26 |    13    15    41 |  ----  ----  ---- |
igr | igr 2966 |     7     5    15 |     6    10    28 |  ----  ----  ---- |
igs | igs 2954 |     6     5    13 |     6     6    26 |  ----  ----  ---- |
jpl | jpl 2967 |    12     9    32 |     9    10    35 |  ----  ----  ---- |
mit | mit 2976 |     7     7    16 |   192    16   336 |  ----  ----  ---- |

Table 5.1753.1   GPS week: 1753   Day: 1   MJD: 56516.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     7    24 |     5     6    19 |  ----  ----  ---- |
emr | emr 2968 |     8     8    27 |     8    10    25 |  ----  ----  ---- |
esa | esa 2976 |     7     6    24 |     6     8    18 |  ----  ----  ---- |
gfz | gfz 2968 |     7     7    24 |     7     8    16 |  ----  ----  ---- |
grg | grg 2880 |    10    16    29 |    14    15    31 |  ----  ----  ---- |
igr | igr 2976 |     7     6    24 |     6     7    19 |  ----  ----  ---- |
igs | igs 2900 |     7     7    25 |     7    10    20 |  ----  ----  ---- |
jpl | jpl 2968 |     8     8    25 |     7     9    21 |  ----  ----  ---- |
mit | mit 2976 |     7     8    26 |     7    12    22 |  ----  ----  ---- |

Table 5.1753.2   GPS week: 1753   Day: 2   MJD: 56517.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2784 |     8     8    18 |     5     6    22 |  ----  ----  ---- |
emr | emr 2871 |     7    10    17 |     8     5    26 |  ----  ----  ---- |
esa | esa 2784 |     7     7    18 |     6     4    20 |  ----  ----  ---- |
gfz | gfz 2780 |     8     7    18 |     7     6    20 |  ----  ----  ---- |
grg | grg 2771 |    11    13    32 |    11    11    32 |  ----  ----  ---- |
igr | igr 2841 |     8     8    18 |     5     4    20 |  ----  ----  ---- |
igs | igs 2803 |     7     7    17 |     6     4    20 |  ----  ----  ---- |
jpl | jpl 2779 |     8     8    17 |    11    11    35 |  ----  ----  ---- |
mit | mit 2880 |     9    10    22 |     9    10    33 |  ----  ----  ---- |

Table 5.1753.3   GPS week: 1753   Day: 3   MJD: 56518.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     7    12 |     5     6    25 |  ----  ----  ---- |
emr | emr 2968 |     8     8    19 |     9    11    32 |  ----  ----  ---- |
esa | esa 2976 |     7     8    13 |     5     6    24 |  ----  ----  ---- |
gfz | gfz 2969 |     8     8    14 |     5     7    27 |  ----  ----  ---- |
grg | grg 2880 |     9     8    21 |    12    16    38 |  ----  ----  ---- |
igr | igr 2974 |     7     7    12 |     5     6    27 |  ----  ----  ---- |
igs | igs 2966 |     8     8    12 |     7     9    31 |  ----  ----  ---- |
jpl | jpl 2968 |     9     8    18 |     9    14    34 |  ----  ----  ---- |
mit | mit 2976 |     7     9    14 |     9    13    37 |  ----  ----  ---- |

Table 5.1753.4   GPS week: 1753   Day: 4   MJD: 56519.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     6    17 |     5    11    26 |  ----  ----  ---- |
emr | emr 2968 |     9     8    22 |     9    12    33 |  ----  ----  ---- |
esa | esa 2976 |     7     6    16 |     5    12    22 |  ----  ----  ---- |
gfz | gfz 2968 |     6     6    15 |     5    12    23 |  ----  ----  ---- |
grg | grg 2880 |    62    44   144 |    41    43   110 |  ----  ----  ---- |
igr | igr 2975 |     7     5    17 |     5    11    22 |  ----  ----  ---- |
igs | igs 2962 |     7     6    16 |     5    11    22 |  ----  ----  ---- |
jpl | jpl 2968 |    10    19    34 |    13    16    41 |  ----  ----  ---- |
mit | mit 2976 |     6     5    15 |     8    18    38 |  ----  ----  ---- |

Table 5.1753.5   GPS week: 1753   Day: 5   MJD: 56520.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     6    15 |     6     8    25 |  ----  ----  ---- |
emr | emr 2968 |     9    10    23 |    10    13    32 |  ----  ----  ---- |
esa | esa 2976 |     7     8    16 |    16    12    40 |  ----  ----  ---- |
gfz | gfz 2967 |     7     8    15 |    17    14    43 |  ----  ----  ---- |
grg | grg 2880 |    34    49   118 |    33    59   120 |  ----  ----  ---- |
igr | igr 2965 |     7     8    15 |    16    12    42 |  ----  ----  ---- |
igs | igs 2975 |     6     8    15 |    14    14    39 |  ----  ----  ---- |
jpl | jpl 2872 |     8    10    20 |    14    15    40 |  ----  ----  ---- |
mit | mit 2976 |     6     9    14 |    14    14    39 |  ----  ----  ---- |

Table 5.1753.6   GPS week: 1753   Day: 6   MJD: 56521.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8    10    17 |     6    10    18 |  ----  ----  ---- |
emr | emr 2968 |     9    11    16 |     8    12    36 |  ----  ----  ---- |
esa | esa 2976 |     9    10    19 |     6     8    23 |  ----  ----  ---- |
gfz | gfz 2968 |     8    11    17 |     9    16    33 |  ----  ----  ---- |
grg | grg 2880 |     9    11    26 |     7    14    41 |  ----  ----  ---- |
igr | igr 2976 |     9    10    18 |     6     8    22 |  ----  ----  ---- |
igs | igs 2974 |     8    11    17 |     7    10    36 |  ----  ----  ---- |
jpl | jpl 2968 |    15    14    21 |     8    10    28 |  ----  ----  ---- |
mit | mit 2976 |    10    11    20 |     7    15    42 |  ----  ----  ---- |


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 6.1753   GPS week: 1753   MJD: 56515.500-56521.500

                                                         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      -4      25     112      1 |      28     31
            |      16      16      71      58      7 |       2
emr   uuuuu |      -7     -18     -41     -95     -6 |      34     36
            |      33      21      86      64      4 |       2
esa   uuuuu |       3     -28      33      52      0 |      16     20
            |      14      15      27      78      5 |       1
gfz   uuuuu |       0      23      26    -100      4 |      11     17
            |      35      21      58     117      6 |       2
grg   uuuux |       9       8     -56     -19     35 |      -2     13
            |      28      17      72      47     44 |       3
igr   xxxxx |     -22      26      35     -15     -1 |       8     15
            |      24      17      31      41      4 |       2
irf   xxxxx |      -3      -4     -57     -57     -2 |       8     14
            |       7       5      22      21      2 |       1
jpl   uuuuu |     -29      19      36     -74     -3 |      45     46
            |      20      17      64     103     15 |       2
mit   uuuuu |       5     -10    -114     -63     -1 |      28     30
            |      19      13      56      50      4 |       2
ngs   uuuuu |      25      44      47      48     -4 |      18     20
            |      61      34     115     159      6 |       2
sio   xxxxx |      67      16      48     -78     11 |      41     42
            |      17      73      50      83     17 |       3


Table 7.1753.0   GPS week: 1753   Day: 0   MJD: 56515.500

                                                         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 |     -29     -15     160     133      3 |      25     29
emr   uuuuu |     -46     -26     -37     -86    -10 |      36     38
esa   uuuuu |     -10     -43      33      -9      0 |      16     20
gfz   uuuuu |       6      -9       4      52      2 |       9     17
grg   uuuux |       8      15    -154       8      3 |      -2     12
igr   xxxxx |      -7      37     -17     -48      4 |       6     16
irf   xxxxx |      -7     -11     -44     -69     -5 |       8     15
jpl   uuuuu |     -55      27     -46     -50      9 |      42     45
mit   uuuuu |      29       2    -111    -134      0 |      25     29
ngs   uuuuu |      66      79      -9      11     -4 |      17     21
sio   xxxxx |      61      53      51    -146      4 |      36     39

Table 7.1753.1   GPS week: 1753   Day: 1   MJD: 56516.500

                                                         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     -14      25      34     -6 |      26     30
emr   uuuuu |     -23     -41      -6     -57     -3 |      34     37
esa   uuuuu |      -6     -22      61     176      0 |      15     20
gfz   uuuuu |      45      18      90      -3      7 |       9     17
grg   uuuux |     -23       7      18      12     -1 |      -3     11
igr   xxxxx |      -4      22      32      -9      4 |       6     16
irf   xxxxx |       1      -7     -86     -24     -3 |       7     15
jpl   uuuuu |     -34      17      31     -36      3 |      43     45
mit   uuuuu |       5     -26    -181     -58      1 |      25     29
ngs   uuuuu |      31      83     -58    -229     -8 |      18     22
sio   xxxxx |      65      79       8     -92      7 |      37     40

Table 7.1753.2   GPS week: 1753   Day: 2   MJD: 56517.500

                                                         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       2      31      73     10 |      29     31
emr   uuuuu |     -11      10     -77    -100     -8 |      36     38
esa   uuuuu |      23     -23      76     -11     -3 |      18     20
gfz   uuuuu |      27      12      51      17     -3 |      13     17
grg   uuuux |      12      39    -138       9     17 |      -3     11
igr   xxxxx |      12      21      63     -32     -4 |       9     15
irf   xxxxx |       2      -2     -48     -54      0 |       9     13
jpl   uuuuu |     -12      11      44      41     17 |      46     48
mit   uuuuu |       5      -3    -109     -74      4 |      28     30
ngs   uuuuu |     -64      -2       9      44      0 |      19     22
sio   xxxxx |      77      49      94     -72     10 |      41     42

Table 7.1753.3   GPS week: 1753   Day: 3   MJD: 56518.500

                                                         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      -2       8     151      5 |      30     31
emr   uuuuu |     -21       1    -109     -99     -2 |      36     38
esa   uuuuu |      23     -10      32     107      4 |      17     20
gfz   uuuuu |       4      22      56    -188     -1 |      12     17
grg   uuuux |      27      -5       8     -22     25 |      -4      9
igr   xxxxx |     -29      44      70      25     -1 |       9     15
irf   xxxxx |     -11      -8     -84     -75     -2 |       9     13
jpl   uuuuu |     -52      42      94    -230     -7 |      48     49
mit   uuuuu |       0     -31    -173     -69      2 |      29     30
ngs   uuuuu |     -23       9      49      75     -5 |      20     22
sio   xxxxx |      54       3      15     -30     10 |      42     43

Table 7.1753.4   GPS week: 1753   Day: 4   MJD: 56519.500

                                                         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       5      35     156    -10 |      30     31
emr   uuuuu |      49      -3    -138       6     -1 |      33     35
esa   uuuuu |       1     -18      16     106     -8 |      16     19
gfz   uuuuu |     -62      19      58    -192     14 |      10     16
grg   uuuux |     -30      16     -54    -114     34 |      -4     10
igr   xxxxx |     -55      14      55     -55     -5 |       9     15
irf   xxxxx |     -12       5     -56     -60      1 |       8     13
jpl   uuuuu |     -12     -13     120     -31    -24 |      47     48
mit   uuuuu |     -31      -2    -140     -96      2 |      28     30
ngs   uuuuu |     128      25      84     -20     -5 |      17     20
sio   xxxxx |      88      67     113    -134     13 |      42     43

Table 7.1753.5   GPS week: 1753   Day: 5   MJD: 56520.500

                                                         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      23     -10     186      1 |      28     30
emr   uuuuu |     -21     -22     -48    -203     -9 |      31     33
esa   uuuuu |       0     -55       0      23      6 |      15     18
gfz   uuuuu |     -28      52     -85    -230     10 |      11     16
grg   uuuux |      15     -10     -84     -40     40 |      -3     12
igr   xxxxx |     -25       0      21     -41      1 |       8     14
irf   xxxxx |       0      -5     -56     -82     -3 |       7     12
jpl   uuuuu |      -4      27     -48    -207    -19 |      42     44
mit   uuuuu |      14     -11     -38     -31     -6 |      27     29
ngs   uuuuu |      25      60     285     278    -10 |      15     18
sio   xxxxx |      40      -7     -24    -153    -13 |      43     44

Table 7.1753.6   GPS week: 1753   Day: 6   MJD: 56521.500

                                                         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 |     -37     -26     -78      51      4 |      31     33
emr   uuuuu |      28     -47     126    -124    -10 |      33     35
esa   uuuuu |      -7     -25      14     -29     -2 |      19     23
gfz   uuuuu |       6      49       4    -156      0 |      16     21
grg   uuuux |      52      -8      10      15    128 |       4     22
igr   xxxxx |     -48      44      19      53     -5 |      11     17
irf   xxxxx |       6      -1     -25     -36     -4 |       9     15
jpl   uuuuu |     -34      19      54      -6     -5 |      44     46
mit   uuuuu |      12      -3     -48      23     -7 |      30     32
ngs   uuuuu |      15      53     -34     175      7 |      17     19
sio   xxxxx |      85    -133      79      82     44 |      45     45



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