[IGSREPORT-22574] Wk 1781 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Mar 14 10:53:22 PDT 2014


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1781   (Feb 23, 2014 - Mar 01, 2014)

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:

igs1781[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1781[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1781[0-6].cls  IGS GPS clock combination summary report.
igs17817.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17817.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   | 1 4
                0  |  EMR   | 4 8 9 1 8 9 HERS
                0  |  ESA   | 4 SCOR SCOR SEY1
                0  |  GFZ   | 2 4 NTUS NTUS
                0  |  GRG   | 4 8 9 1 8 9 BRMU CHUR FAA1 HARB LPGS MATE NRMD NTUS
                0  |  GRG   | LPGS NRMD NTUS
                0  |  JPL   | 4 8 9 HYDE
                0  |  MIT   | 2 4 6 8 9 11 31 1 2 4 6 8 9 11 BREW CONZ DAV1 DUBO
                0  |  MIT   | GOPE HLFX MDVJ NTUS TNML DUBO GOPE MDVJ NTUS
                1  |  ALL   | 1
                1  |  COD   | 4 4 8
                1  |  EMR   | 8 9 9 HERS
                1  |  ESA   | 4 4 8
                1  |  GFZ   | 2 2 DARW HOB2 DARW IRKJ
                1  |  GRG   | 8 9 8 9 DARW DRAG GRAZ HOB2 HYDE KELY MAL2 NRMD NYA1
                1  |  GRG   | GRAZ HYDE KELY MAL2 NYA1 POLV
                1  |  JPL   | 2 8 9
                1  |  MIT   | 2 3 4 6 8 9 14 22 23 31 2 3 4 6 8 9 14 22 31 ALIC
                1  |  MIT   | BREW CRO1 DARW DAV1 DRAG GOPE HOB2 HYDE MAC1 MAS1
                1  |  MIT   | MDVJ MOBS NTUS NYAL TIDB TNML TWTF VILL YELL DARW
                1  |  MIT   | DAV1 DRAG GOPE HOB2 HYDE MDVJ NYAL
                2  |  COD   | 1 4 BOGT BOGT
                2  |  EMR   | 4 8 9 8 9 MCM4
                2  |  ESA   | 1 1 4 21 CHUR DARW ARTU CHUR DARW
                2  |  GFZ   | 1 2 4 1 DARW SFER DRAG NRMD SFER
                2  |  GRG   | 4 8 9 8 9 ABMF ARTU BOGT BOR1 BRFT BRMU BRST BRUX
                2  |  GRG   | CHTI CHUR COCO CRO1 FAA1 GRAZ GUUG HARB HOB2 HRAO
                2  |  GRG   | HYDE INVK ISPA KARR KELY KOUC KOUR MAC1 MAL2 MAS1
                2  |  GRG   | MAW1 MCM4 NICO NKLG NRMD NTUS PDEL REUN THTI TOW2
                2  |  GRG   | WTZR ZAMB BOGT GRAZ HYDE ISPA KELY NTUS
                2  |  JPL   | 2 8 9 BOGT KARR
                2  |  MIT   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                2  |  MIT   | 21 22 23 24 25 26 27 28 29 31 32 1 2 3 4 5 6 7 8
                2  |  MIT   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                2  |  MIT   | 26 27 28 29 31 32
                3  |  COD   | 4 KARR KARR
                3  |  EMR   | 8 6 8 12 31 HERS PRDS
                3  |  ESA   | 1 1 4 PIMO DGAV HYDE PIMO SEY1
                3  |  GFZ   | 1 2 1 REUN GRAZ REUN
                3  |  GRG   | 9 BRAZ GLPS KELY NTUS REUN USNO BRAZ GLPS KELY NTUS
                3  |  JPL   | 2 7 8 9 17 29 31 CAS1
                3  |  MIT   | 1 2 4 6 8 14 17 19 20 21 22 23 1 2 4 6 8 11 14 17
                3  |  MIT   | 19 20 21 22 23 28 BAKO CONZ USNO
                4  |  ALL   | 1
                4  |  COD   | 4 1 4 TRO1 TRO1
                4  |  EMR   | HERS
                4  |  ESA   | 4 1 4
                4  |  GFZ   | 2 1 TSKB
                4  |  GRG   | 28 28 ABMF ALIC BOGT BRMU DARW GUAT HOFN HYDE KOUR
                4  |  GRG   | MAL2 MCM4 MONP NOVM NRMD SYOG TRO1 ALIC BOGT MAL2
                4  |  GRG   | NRMD
                4  |  JPL   | SCOR
                4  |  MIT   | 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21
                4  |  MIT   | 22 23 24 25 26 27 28 29 31 32 1 2 3 4 5 6 7 9 10
                4  |  MIT   | 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
                4  |  MIT   | 28 29 31 32 MAW1 MAW1
                5  |  ALL   | 1
                5  |  COD   | 4
                5  |  EMR   | 8 8
                5  |  ESA   | 1 4 ARTU SEY1 UNSA
                5  |  GFZ   | 2 1
                5  |  GRG   | 8 8 ARTU BRST CONZ DARW GOPE KELY MAL2 MAS1 MOBS
                5  |  GRG   | NRIL NTUS POLV REYK TLSE TNML TWTF ZECK MOBS NTUS
                5  |  JPL   | 8 21
                5  |  MIT   | 2 4 6 8 11 1 2 4 6 8 MAC1 MDVJ USNO MAC1 USNO
                6  |  ALL   | 1
                6  |  COD   | 4 6
                6  |  EMR   | 4 8 8 HERS MCM4 MCM4 YELL
                6  |  ESA   | 1 4 SEY1
                6  |  GFZ   | 2 4 1 CHUR
                6  |  GRG   | 4 8 8 ABMF ARTU BOGT BRAZ BRFT BRMU BRST BRUX CHTI
                6  |  GRG   | COCO DAEJ DARW DRAG GRAZ GUUG HOFN HYDE KARR KOUC
                6  |  GRG   | MAC1 MAL2 MAW1 MCM4 NICO NTUS PDEL REUN SSIA TNML
                6  |  GRG   | TOW2 TWTF WTZR ZAMB GRAZ MAL2
                6  |  JPL   | 4 8 9
                6  |  MIT   | 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                6  |  MIT   | 21 22 23 24 25 26 27 28 29 31 32 1 2 3 4 5 6 7 8
                6  |  MIT   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                6  |  MIT   | 26 27 28 29 31 32

 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 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
               ----+------------+----------
               G08 | 2014_02_27 | 2014020 

 7. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G09 |  4 |    |    |    |    |    |    |
           PRN G30 |    |    |  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.

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |   -2.2    -.2   -2.0     -39      3    -14     .67
       EMR  |   0 |   -4.1   -1.7    1.9      49     46    -40     .76
       ESA  |   0 |    7.3    2.3    1.2      -1    -25     62     .32
       GFZ  |   0 |    -.5    -.3   -2.2     -52    -31    -18     .56
       GRG  |   0 |    -.4    6.8   -4.3      -2    -29     29     .85
       JPL  |   0 |   -4.1   -6.5   15.3     -59     45     27     .34
       MIT  |   0 |    3.8    1.3    8.9       7      0    -30     .57
       NGS  |   0 |   -1.6    6.1   14.8     -12    -28     15     .67
       SIO  |   0 |   -1.6    2.9    4.6      14    -42     31     .66

       COD  |   1 |   -2.2    -.6   -1.9     -55     -5      7     .60
       EMR  |   1 |    3.6   -1.5    5.4      49     29    -20     .62
       ESA  |   1 |    6.2    5.5   -1.6       6     -9     84     .25
       GFZ  |   1 |    -.4    -.1   -1.7     -49    -16    -31     .56
       GRG  |   1 |    4.5    3.8   -2.3     -19    -25     27     .79
       JPL  |   1 |    6.1   -1.7   11.2     -54    -22    -19     .62
       MIT  |   1 |    3.5    1.4   13.8     -23      4    -27     .33
       NGS  |   1 |   -3.4    1.7   16.3     -48     -4    -17     .58
       SIO  |   1 |    1.5    2.7    9.8       1    -44     29     .60

       COD  |   2 |   -1.9    -.5   -1.3     -36      6    -14     .57
       EMR  |   2 |    3.7    4.8    8.6      46     23    -33     .78
       ESA  |   2 |    3.9    4.4    5.7      -2    -56     79     .26
       GFZ  |   2 |     .0    -.3    -.6     -55    -23    -20     .15
       GRG  |   2 |    8.2    2.6    3.4     -30    -34     16     .67
       JPL  |   2 |   -2.0    3.0   22.7      62   -103      1    -.60
       MIT  |   2 |    3.4    3.7    9.4      -5     -3    -12     .27
       NGS  |   2 |    2.8    5.6   23.6     -35    -70     28     .61
       SIO  |   2 |    4.1    5.8   23.1     -25    -39     22     .30

       COD  |   3 |   -1.0    -.7   -2.1     -26     -3    -24     .82
       EMR  |   3 |    5.9    1.3    7.9      12     13    -46     .80
       ESA  |   3 |    6.1    6.4    6.0       3    -76     81     .33
       GFZ  |   3 |    -.4     .0   -1.6     -44    -12    -31     .31
       GRG  |   3 |    2.7   -3.0    1.6     -34    -29     24    1.24
       JPL  |   3 |    5.2   -7.4   27.6     134      0     52    -.32
       MIT  |   3 |    1.0    4.6    8.2      -1    -13     -2     .83
       NGS  |   3 |   -6.4    4.2   17.9     -50      0    -26     .91
       SIO  |   3 |    4.6    5.2   14.0       7    -48     16     .86

       COD  |   4 |   -1.8    -.8   -2.8     -43      7     13     .79
       EMR  |   4 |    5.1    6.8    2.1       4     22    -55     .70
       ESA  |   4 |    7.8    -.6    1.6      -7    -36     75     .31
       GFZ  |   4 |    -.2     .0   -1.8     -47    -39    -14     .37
       GRG  |   4 |   15.1    -.3   -6.9       1    -15     40    1.01
       JPL  |   4 |   -3.3    3.8   14.2     -43    -13      4     .82
       MIT  |   4 |     .3    2.6    8.7      -6      5      0     .48
       NGS  |   4 |    4.7    -.3   21.2     -70    -81     16     .97
       SIO  |   4 |    6.4    6.2   11.9      14    -67     34     .46

       COD  |   5 |    -.3     .3   -1.8     -22     -7     -8     .77
       EMR  |   5 |    4.1   -2.4    7.5      15     13    -47     .84
       ESA  |   5 |    5.9   -1.2    -.9       4     -4     69     .24
       GFZ  |   5 |    -.5    -.3   -1.9     -49    -11    -22     .62
       GRG  |   5 |    1.3    6.7  -13.2      -7    -38     14    1.32
       JPL  |   5 |    8.1   -1.1   18.4       7     -4     28     .86
       MIT  |   5 |    1.1    1.2    7.0      -5    -23    -14     .67
       NGS  |   5 |   -3.4   -1.2    8.5     -39      5    -22     .97
       SIO  |   5 |    3.7    4.9   26.1      11    -66    -19     .85

       COD  |   6 |    -.7     .5   -1.6     -21     10      1     .80
       EMR  |   6 |    6.8   -2.7    7.2      10     24    -47     .77
       ESA  |   6 |     .7   -3.4    2.5      -8     -3     38     .15
       GFZ  |   6 |     .2    -.2   -1.1     -37    -36     -1     .25
       GRG  |   6 |    -.9   -2.2   -2.3      -1    -28     18    1.10
       JPL  |   6 |    -.8   -2.0   21.2      64    -56     71     .30
       MIT  |   6 |    3.0    -.4    6.6       8     -6    -12     .59
       NGS  |   6 |   -1.6   -6.7   16.1    -100    -20    -43     .80
       SIO  |   6 |    2.2    5.6   22.3      39    -22     74     .69


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.


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 1.1781.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1781.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 2.1781.[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 3.1781.[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 5.1781.0-6). 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 1781 summary.                       (Feb 23, 2014 - Mar 01, 2014)

Table 1.1781.a   GPS week: 1781   MJD: 56711.000-56717.000

         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  248|    0     1     3    21    39     3   .09   11   10 |    -990      16     21    125
        |    0     1     1    13    35    11   .03           |     259     534
emr   79|    0    -1     3   -10    20     5   .09   18   18 |    3206     123     21    114
        |    2     1     1    20    27    15   .03           |     828     612
esa  150|    1     0     0    16   -44    16  -.23    7    6 |    -653     423     10    106
        |    0     0     1    18    76    22   .01           |    1354    1890
gfz  191|    0     0    -6    43     1   -34   .17   11   10 |    -293      -6     14    115
        |    0     1     1    15    31    19   .01           |     388     534
grg  183|    1     0     1   -36    -9   -32   .35   15   14 |     -91      10     19    165
        |    1     0     2    18    51    11   .04           |     202     305
igr  n/a|    0     0    -1   -30    29   -10  -.18    5    5 |    7488     671     16     95
        |    0     0     1    23    23    16   .04           |    2101     650
jpl   80|    0     0    -1    20    -7   -23   .04   18   17 |    1732     228     21    141
        |    1     2     1    35    49    35   .03           |    1339     736
mit  295|    0     0    -2    -9    18    16  -.18   12   10 |    -176      91     75    274
        |    1     1     0    24    36    19   .05           |     236     435
ngs  228|   -1     1     3   -83    46     1   .06   14   12 |    -926     -87   1737   3288
        |    1     1     2    33    64    30   .05           |     249     530
sio  470|    0    -1    -2     0   -16    15  -.61   20   20 |     ---     ---    ---    ---
        |    0     1     2    24    25    19   .12           |     ---     ---


Table 1.1781.b   GPS week : 1781   MJD: 56711.000-56717.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         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 2.1781.0   GPS week: 1781   Day: 0   MJD: 56711.000                            

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  246|    0     0     4    37    31     7   .10   11   11 |   -1407     764     20    127
emr   80|   -4    -1     1     0    14    -7   .14   19   19 |    3158    -425     16    106
esa  150|    1     0    -1    10    -9     7  -.24    7    6 |   -1343    2097      9    105
gfz  191|    0    -1    -6    77    18   -25   .16   11   11 |      80    -683     12    116
grg  185|    1     0     3   -12   -74   -35   .35   14   13 |    -452     484     17    144
igr  n/a|    0     0    -2   -35    26     3  -.22    5    5 |    5609     119     16     87
jpl   80|   -1     0     1     9    16    11   .04   17   17 |    1181    -440     19    153
mit  300|    1    -2    -1    -5     5    -2  -.20   16   12 |    -293     491     27    224
ngs  225|   -1     2     1  -151     3    33   .02   13   11 |   -1282     639   1719   3770
sio  459|    0    -4    -2     8   -20    17  -.49   21   18 |     ---     ---    ---    ---

Table 2.1781.1   GPS week: 1781   Day: 1   MJD: 56712.000                            

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  246|    0     0     5     2    28     1   .14   11   10 |   -1007     -69     19    119
emr   80|   -1    -1     2   -13    24    15   .07   18   18 |    2396    -315     17    111
esa  150|    2    -1     0    10     0    20  -.23    7    7 |     986   -1792     12    113
gfz  193|    0    -1    -6    36     2   -47   .17   11   11 |    -573     865     13     73
grg  186|    4     0    -1   -25   -49   -16   .35   13   13 |     -40     -70     16    140
igr  n/a|   -1     0    -1   -14    34   -10  -.18    5    5 |    5370     127     16     89
jpl   80|   -1     0    -2     0    39    12   .09   17   16 |     420    -420     17    118
mit  295|    0     0    -2     8    -5     7  -.21   13   10 |    -163     -13     31    219
ngs  233|   -2     0     3   -45   -25   -21   .00   13   12 |    -861    -384   1620   3128
sio  472|    0    -2    -4    23   -47    14  -.41   20   19 |     ---     ---    ---    ---

Table 2.1781.2   GPS week: 1781   Day: 2   MJD: 56713.000                            

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  250|    1     0     0    11    19     4   .12   11   10 |    -839    -428     21    132
emr   79|    0     0     2     1    11    -8   .11   19   19 |    1942    1063     20    109
esa  150|    0    -1     0    33   -69    12  -.22    8    7 |   -1217    2453      8     98
gfz  192|   -1    -1    -6    41    -1   -54   .19   12   11 |      18       1     17    122
grg  182|    3     0     0   -46     4   -51   .33   15   14 |    -129     269     19    162
igr  n/a|    0     0    -2    -7    15     1  -.14    5    5 |    5623    1449     19     95
jpl   80|    1    -2    -2    -1   -12    -2   .02   17   16 |     142    1050     21    152
mit  298|    0     0    -2   -14    50    39  -.25   12   10 |    -353     368     99    190
ngs  226|    0     1     6   -67    72     6   .06   13   11 |    -810    -443   1680   3332
sio  471|    0     0    -4   -30     3    30  -.71   20   20 |     ---     ---    ---    ---

Table 2.1781.3   GPS week: 1781   Day: 3   MJD: 56714.000                            

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  252|    0     0     1    22    16     4   .06   10   10 |    -656    -786     24    127
emr   80|    2    -3     3     1     7    18   .10   18   18 |    3039     859     45    131
esa  150|    2    -1     0    13   -58    19  -.24    7    7 |   -1022    1175     16    110
gfz  191|    0     0    -7    31   -33   -33   .17   10   10 |     -89    -375     18    117
grg  184|    2     0     4   -59    32   -31   .31   15   14 |      72     144     30    183
igr  n/a|    0     0    -2   -19    40   -10  -.13    5    5 |    7005    1506     19    123
jpl   80|   -1     0    -1     3   -51   -79   .06   19   19 |    1138    1129     33    122
mit  294|   -1     0    -2    21    48    45  -.21   11   10 |    -472     183     36    228
ngs  227|   -2     2     1   -78    96   -11   .05   13   11 |    -615    -840   1722   3301
sio  475|    0    -1    -3    21    -6     3  -.73   21   20 |     ---     ---    ---    ---

Table 2.1781.4   GPS week: 1781   Day: 4   MJD: 56715.000                            

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  248|    0     2     1    26   119   -19   .05   11   11 |   -1230     372     21    117
emr   80|    1     0     2   -53    77   -10   .07   18   18 |    3890      65     23    127
esa  150|    1     0     1    39  -200    62  -.22    6    6 |   -1004    1063      9    102
gfz  189|    0     0    -5    38    53   -55   .18   10   10 |    -982     138     12    126
grg  182|    1     0     0   -40    77   -32   .40   16   15 |    -106    -294     18    188
igr  n/a|    0     0     0   -80    69   -44  -.18    5    5 |    8705    1020     16     87
jpl   80|    0    -2    -2   -10    61   -38   .07   18   18 |    2587     595     22    141
mit  292|   -1     0    -1   -25    66     0  -.15   11   10 |    -219     456    119    421
ngs  231|    0     0     3   -87   101   -43   .10   18   17 |   -1240     390   1493   3305
sio  471|    1     0    -5    12    12     5  -.68   20   20 |     ---     ---    ---    ---

Table 2.1781.5   GPS week: 1781   Day: 5   MJD: 56716.000                            

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  249|    0     3     2    38    31     5   .06   11   11 |    -999     408     23    132
emr   80|    0    -1     5   -16    -8     6   .06   18   18 |    3819      62     18    115
esa  150|    1     0     0    25     0    -8  -.23    7    7 |   -2388     483     10    108
gfz  192|    0     0    -4    42   -38   -21   .17   11   10 |     -65    -406     12    121
grg  184|    0    -1     0   -55   -34   -37   .40   16   15 |     188    -363     17    196
igr  n/a|    0     0     0   -25    -5   -13  -.17    6    6 |    9807     498     15     86
jpl   80|   -3    -3    -1    74   -28    -9   .00   19   19 |    3244     324     18    141
mit  291|    0    -2    -1   -52   -29    23  -.12   11   11 |      56     -87     27    266
ngs  229|    0     0     0   -88   112    42   .06   14   13 |    -933     269   1795   2997
sio  471|    0     0     2   -37   -53   -11  -.60   20   19 |     ---     ---    ---    ---

Table 2.1781.6   GPS week: 1781   Day: 6   MJD: 56717.000                            

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  250|    0     0     4    11    26    19   .09   10   10 |    -794    -149     20    122
emr   80|    2     0     4     6    14    27   .08   18   18 |    4200    -448     14    105
esa  150|    0     0     0   -16    26     0  -.24    6    6 |    1411   -2515      9    107
gfz  190|    0     1    -4    32     6    -2   .19   11   10 |    -441     418     16    132
grg  182|    0    -1     0   -17   -21   -23   .32   17   15 |    -174     -97     17    143
igr  n/a|    0     0     0   -32    23     2  -.22    5    5 |   10299     -22     17    102
jpl   80|    0     3    -2    69   -75   -56   .03   17   17 |    3417    -640     20    162
mit  296|    0    -1    -2     3    -9     0  -.14   11   10 |     209    -757    187    376
ngs  229|   -1     0     4   -66   -36     7   .14   14   12 |    -743    -246   2134   3189
sio  474|    1     0     0     6    -1    48  -.62   21   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 3.1781.0   GPS week: 1781   Day: 0   MJD: 56711.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    8   12    6   23   20   10  ---    9   15   19    5 |    33   33   32   36   32   30  ---   29   33   28    30
   2E |   11   17    6   12   19    6   19   12    9   33    4 |    25   25   23   25   23   23   24   29   29   35    23
   3  |    8   15    5    9   16    6   12    7   14   18    4 |    29   31   27   33   36   27   29   28   27   30    28
   4E |   14   31    9   10   18    7   22   43   20   21    8 |    39   52   41   38   46   43   42   31   48   39    39
   5  |   13   19    7   15   11    7   18   10    9   21    4 |    49   51   40   40   43   40   50   43   46   49    43
   6  |   14   12    5    9   11    6   13   12   19  ---    4 |    28   29   29   29   17   26   22   29   30  ---    27
   7E |   11   17    5    8   15    5   19   11   13   14    4 |    37   31   25   33   30   27   32   28   31   26    28
   8E |   16   20   15   10   18    8   22   39   17   18    7 |    55   59   45   48   35   50   58   57   56   45    50
   9E |   15   23    9   17   15    6   18   14   11   23    5 |   156  154  152  159  153  150  153  158  145  153   153
  10  |   11   13    7    8   15    4   11    7    9   15    3 |    22   19   21   26   25   18   18   17   18   25    19
  11E |   11   11    7    9   13    6   13   15   14   13    4 |    49   48   46   44   47   44   46   45   45   41    45
  12  |    8   20    6   11   16    4   20   14   14   22    5 |    30   31   25   33   35   26   31   23   31   27    27
  13  |    8   17    3    8   10    4   16   12   11   21    3 |    38   43   38   44   45   38   42   39   37   41    39
  14  |   19   18    8    9   12    5   15   11   13   17    4 |    34   37   42   49   42   40   36   41   33   37    38
  15  |   11   20    6   12   13    5   18   15   11   28    4 |    25   28   27   39   37   28   29   28   28   31    27
  16  |   11   21    6   13   14    4   21   12   15   24    5 |    23   31   20   26   28   21   28   20   30   22    22
  17  |   12   24   11   14   13    5   18   16   14   23    5 |    33   37   40   45   41   36   35   39   42   35    37
  18  |    9   21    6   14   13    4   19    9   12   22    4 |    27   26   21   38   29   23   27   22   25   19    23
  19  |    7   19    7   10   14    5   20   12   17   20    5 |    36   37   36   39   43   34   33   35   32   27    34
  20  |    9   20    7   10   11    5   19   13   13   26    4 |    25   27   23   30   24   23   25   23   25   30    21
  21E |   11   13    7    9   13    3   15   15    8   18    4 |    32   27   26   32   28   26   28   28   29   24    27
  22  |    9   19    7   10   11    4   21   10   12   23    4 |    29   27   27   37   33   30   25   29   29   30    27
  23  |    7   16    5    8    9    4   14    8   14   23    3 |    32   32   33   42   34   33   31   30   33   30    32
  24E |   12   19    5   10   19    5   16   15   10   10    4 |    77   80   77   82   91   80   83   76   80   80    79
  25  |   10   14    6   11   14    4   17   13    9   12    4 |    24   28   22   29   29   22   33   21   25   22    23
  26  |   10   14    5   10   10    6   11   13    9   18    3 |    30   26   30   38   32   28   29   30   28   26    29
 X27  |    8   12    7    9  ---    5   13    9   14   17    4 |    22   27   24   22  ---   21   29   23   23   25    22
  28  |   11   23    6    7   17    4   18   27   15   14    5 |    33   37   30   36   38   30   36   35   31   31    31
  29  |   14   18    6   17   13    5   20   13    8   30    5 |    26   26   19   28   27   21   23   23   26   26    21
  31E |   11   18    7    9   13    5   20    9   12   12    4 |    36   34   31   36   35   31   33   30   41   31    32
  32  |    6   11    4    8    9    4   10   10   14   12    3 |    27   25   23   30   29   25   27   26   28   21    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19    7   11   14    5   17   16   13   21      |T   37   38   35   40   39   35   37   35   37   36    35
 WRMS |   11   19    6   11   13    5   17   12   11   18      |NE  28   30   26   33   32   26   29   27   28   28    27
 MEDI |   11   18    6   10   13    5   18   12   13   19      |MD  32   31   29   36   34   28   31   29   31   30    28

Table 3.1781.1   GPS week: 1781   Day: 1   MJD: 56712.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    7   12    7   16   18    6  ---   10   10   16    4 |    33   36   33   35   35   31  ---   33   31   32    33
   2E |    8   17    6   11   13    3   20   13   12   22    4 |    18   16   13   20   10   13   17   16   19   23    13
   3  |    6   11    6    8   15    4   10    6   16   18    3 |    29   30   27   32   30   28   30   27   29   31    28
   4E |   16   25    9    9   14    8   18   15   18   16    5 |    31   36   27   29   28   27   29   30   34   29    27
   5  |   14   21    5   14   12    7   18   14   13   17    5 |    32   34   24   26   30   23   32   25   30   28    26
  X6  |    8   14    5   13  ---    6   13    9   17  ---    4 |    23   24   18   27  ---   22   20   21   30  ---    21
   7E |    7   18   10    8   13    4   18   11   14   14    4 |    34   31   29   34   33   28   32   31   35   25    30
   8E |   18   19   13   11   16    8   21   33   17   18    7 |    52   51   41   46   31   46   54   56   51   45    47
   9E |   14   22   10   16   16    7   20   10   11   23    5 |   148  149  145  146  146  144  146  145  145  147   146
  10  |    8   14    6    9   12    5   11   11   11   13    3 |    22   18   19   25   23   16   19   20   18   21    18
  11E |   15   11    6    9   15    4   12   10    8   18    4 |    40   41   39   38   47   38   42   39   42   32    40
  12  |    7   22    5   11   14    3   19    9   13   23    4 |    24   25   18   27   29   18   25   18   24   19    20
  13  |    9   16    5   10   13    3   15   12   13   18    4 |    28   34   23   32   34   24   34   27   25   27    26
  14  |   15   18    4   11   14    5   14    9   10   18    4 |    37   32   29   36   32   30   31   28   27   29    30
  15  |   12   21    5    7   11    5   17   15   15   26    4 |    23   24   19   27   28   20   26   19   21   20    19
  16  |   12   18    6   15   14    4   21   10   11   27    4 |    23   25   17   25   25   20   26   15   21   17    19
  17  |    9   16    9   17   12    4   18   17   15   19    5 |    26   28   25   33   32   24   27   26   27   20    25
  18  |   11   21    6   16   13    4   21   10   15   26    5 |    27   24   20   36   28   23   27   23   20   20    22
  19  |    9   18    8   10   10    4   20    9   13   25    4 |    29   30   24   29   29   24   28   24   20   21    24
  20  |    8   19    7   12   13    2   20   14    9   27    4 |    22   25   19   26   24   19   27   25   20   32    19
  21E |   10   12    5   10   14    4   15    7   12   16    4 |    19   17   17   20   19   16   17   14   14   17    14
  22  |   10   16    7   13   12    5   19   13   14   18    4 |    26   26   23   30   28   24   27   27   18   23    23
  23  |    7   15    5   14   11    4   15    7   16   24    4 |    23   25   19   30   22   19   26   21   22   22    20
  24E |    8   18    8   10   13    5   15    8    9   11    4 |    42   42   40   40   45   39   45   41   43   40    40
  25  |   11   15    5    8   10    6   16   10   14   11    4 |    20   27   17   22   25   17   31   16   24   16    19
  26  |    8   15    6    9   11    6   10    8   11   26    3 |    23   17   20   26   23   18   21   17   19   30    19
 X27  |    8   12    8   10  ---    3   11    8   13   17    4 |    22   25   20   22  ---   19   29   18   20   16    20
  28  |   12   25    9   12   14    5   16   22   12   17    5 |    33   39   30   32   35   29   35   29   33   30    29
  29  |    5   17    7   13   13    3   19   10   13   28    4 |    22   24   18   26   24   17   25   19   22   21    19
  31E |    9   19    7    9   17    5   19    7   13    8    4 |    27   27   21   25   34   24   26   22   26   22    23
  32  |    6    9    6    9   16    5   10   11   13   18    3 |    22   20   17   22   27   18   22   22   20   27    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    7   11   13    5   17   13   13   20      |T   31   32   27   33   32   27   32   28   30   29    28
 WRMS |   10   18    7   11   13    5   16   10   12   19      |NE  25   26   21   27   27   21   26   21   23   22    22
 MEDI |    9   17    6   11   13    5   17   10   13   18      |MD  26   27   21   29   29   23   27   24   24   23    23

Table 3.1781.2   GPS week: 1781   Day: 2   MJD: 56713.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    9   13    7   17   16    6  ---    9    9   17    4 |    24   33   29   31   26   28  ---   23   28   24    26
   2E |   13   16    7   12   14    5   15   15   12   14    4 |    24   24   24   22   20   22   22   25   22   21    21
   3  |    7   12    4    7   13    6   11    7   12   22    3 |    27   24   24   31   27   25   25   22   32   26    25
   4E |   14   27    9   10   14    7   18   16   24   14    6 |    23   34   25   22   23   22   26   22   28   23    21
   5  |   14   19    7   12   11    5   17   11   10   15    4 |    39   42   36   35   38   33   41   34   41   35    36
  X6  |   11   11    9   11  ---    9   10    9   17  ---    4 |    28   25   29   32  ---   25   20   22   33  ---    26
   7E |   10   20    7    7   14    5   18   11   11   11    4 |    38   35   31   36   36   31   33   33   30   28    32
   8E |   13   19   11   12   16    8   17   19   11  ---    5 |    56   50   45   52   38   48   53   53   48  ---    50
   9E |   12   24   12   15   14    9   20    8    9   33    5 |   114  116  112  109  112  113  116  111  110  118   111
  10  |    8   19    8   10   11    4   13   14    8   17    4 |    27   21   28   32   24   25   19   27   25   24    25
  11  |    7   12    7    6   20    6   13   14   11   11    4 |    43   46   44   42   47   41   44   38   43   36    41
  12  |    8   23    7   13   17    5   19   12   15   27    5 |    31   31   26   33   33   25   28   25   25   31    26
  13  |   10   17    6   13   16    4   16    9   12   23    4 |    35   39   34   42   39   34   37   34   33   38    34
  14  |   18   17    5   11   14    6   13   11   13   19    4 |    34   31   29   40   34   33   31   32   29   26    31
  15  |    9   22    5   13   11    6   17    9   15   23    4 |    28   27   25   34   30   24   25   24   20   22    24
  16  |   16   17    6   13   14    4   20    9   11   21    5 |    25   26   19   30   25   18   27   17   17   17    19
  17  |    7   19    9   18    9    4   20   19   14   23    5 |    33   34   35   40   36   30   32   32   30   24    32
  18  |   11   20    5   19   16    5   18   10   14   20    5 |    25   29   22   41   28   24   29   26   24   19    25
  19  |    8   16    7   10   12    5   20    9   11   21    4 |    33   31   32   41   35   31   31   29   35   24    31
  20  |   10   19    6   10   13    3   16   14    9   24    4 |    26   31   24   28   25   24   26   24   21   29    23
  21E |    9   17   15   10   26    6   17   12   18   20    6 |    23   24   27   28   33   24   28   23   32   27    24
  22  |    7   19    7   10   13    3   17    9   14   18    4 |    23   26   23   31   30   23   26   24   16   21    23
  23  |   11   16    6   12   13    3   15   10   13   20    4 |    30   31   31   38   30   28   29   29   28   27    29
  24E |   13   19    7    9   23    5   14    8   15   17    5 |    70   73   71   74   77   68   70   67   70   67    70
  25  |    9   20    5    9   12    7   14    9   12   15    4 |    27   31   26   31   29   24   32   23   19   22    25
  26  |    6   12    8    9   11    5    9    5   11   17    3 |    30   25   29   31   28   25   25   26   22   25    27
 X27  |   10   12    8   12  ---    7   13    9   10   17    4 |    29   28   28   29  ---   24   29   21   27   18    25
  28  |   11   19    6   11   14    4   19   13   10   20    4 |    30   39   32   35   41   30   35   29   31   30    32
  29  |    9   19    7   16   16    5   22   10    9   34    5 |    26   25   24   33   27   22   27   21   20   30    23
 X30E |    2  ---  ---  ---  ---  175  ---  ---  ---  ---    0 |  9999  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
  31E |    9   22    8    9   16    5   17    8   13    8    4 |    29   33   27   31   34   25   29   24   29   23    26
  32  |    9   13    7   10   15    5    9    9    9   13    3 |    21   25   21   22   22   20   19   18   17   22    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19    8   12   15    5   17   12   13   20      |T   33   35   32   37   35   31   33   30   31   30    31
 WRMS |   10   19    7   11   14    5   16   10   11   20      |NE  28   28   26   33   30   25   27   24   25   24    26
 MEDI |    9   19    7   11   14    5   17   10   12   19      |MD  29   31   28   33   30   25   29   25   28   25    26

Table 3.1781.3   GPS week: 1781   Day: 3   MJD: 56714.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    6   15    5   13   14    7  ---   11   13   15    4 |    32   38   32   35   33   34  ---   33   33   33    33
   2E |   15   19    8   10   21    5   20   11   11   13    5 |    27   25   20   21   25   19   27   24   20   20    22
   3  |    9   10    5    7   20    3   12    5   12   23    3 |    30   30   30   32   38   27   32   29   33   30    30
   4E |   11   22   10    8   13    7   21   21   16   16    5 |    21   30   25   26   23   21   25   25   25   24    22
   5  |   14   22    6    9   11    6   20   10    9   17    4 |    37   43   33   30   35   31   43   30   31   34    33
  X6  |   11   10    7   10  ---    5   17    7   16  ---    4 |    27   26   26   26  ---   19   21   23   27  ---    24
   7E |    8   20    7   10   20    6   23   12   10   15    5 |    24   23   17   26   31   18   29   23   19   16    21
  X8E |   14   19   10    8  ---   10   21   11   10   20    5 |    51   58   46   48  ---   45   62   47   48   49    48
   9E |    9   22   11   10   16    8   25    8   11   29    5 |   145  142  137  143  138  134  144  141  138  138   140
  10  |    8   16    7    9   15    4   14   11   12   19    4 |    23   20   22   28   22   20   29   24   22   25    22
  11  |   10   14    7    8   19    5   16    9   10   14    4 |    36   37   36   34   43   32   42   32   34   32    34
  12  |    8   22    7   13   17    5   20   13   14   23    5 |    30   30   23   31   31   24   34   24   26   27    25
  13  |    8   17    8   10   12    5   21   10    9   24    4 |    29   36   28   36   35   29   38   34   29   36    30
  14  |    8   16    7   12   17    6   14   11   17   17    4 |    37   37   39   46   37   38   38   39   37   34    38
  15  |   11   22    6   10   10    5   25    9   12   28    4 |    30   29   28   37   34   31   33   28   30   25    29
  16  |   15   18    7   12   16    4   22    8   16   23    5 |    30   28   22   30   31   23   28   23   31   22    26
  17  |    9   21    8   18   13    5   23   13   14   27    5 |    29   36   33   37   39   29   36   30   31   30    32
  18  |    9   22    5   13   15    6   22   10    9   19    4 |    25   29   24   38   31   25   34   26   24   23    26
  19  |    8   20    8   10   15    3   19    8   14   23    4 |    33   35   32   36   42   31   34   33   33   27    33
  20  |   11   18    7   12   12    3   17   15   17   19    5 |    18   25   20   28   24   19   24   25   24   24    19
  21E |    8   16    7   13   10    5   12    8   14   17    4 |    26   23   24   29   25   22   26   22   21   27    24
  22  |    8   17    6    9   14    5   23   10   11   17    4 |    26   28   25   30   33   28   31   28   24   29    26
  23  |   10   17    8   10   11    4   18    9   11   23    4 |    25   30   25   33   28   24   32   27   24   25    25
  24  |    6   15    8    9   15    9   15    9   17   14    4 |   128  129  128  131  132  128  127  127  127  129   128
  25  |    8   16    5   10   14    4   15   13    9   13    4 |    23   29   23   29   27   22   37   23   22   23    24
  26  |    6   13    5    8    9    7   12    5   12   22    3 |    26   24   27   36   28   27   29   27   25   27    27
 X27  |   10   10    7    9  ---    4   17   10    9   14    4 |    26   27   22   27  ---   21   33   23   24   17    24
  28  |   10   18    6    8   13    5   21   14   15   19    4 |    30   36   27   33   37   27   37   32   30   27    29
  29  |   10   19    7   11   14    5   22   10    9   37    4 |    27   29   23   29   28   21   34   23   24   35    24
 X30E |    2  ---  ---  ---  ---  106  ---  ---  ---  ---    0 |  9999  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
  31E |    8   22    7    8   18    4   19    8   16   10    4 |    29   28   25   29   29   23   30   23   30   20    25
  32  |    9   11    5   10   12    4   12    8   10   12    3 |    19   23   19   25   22   19   25   20   21   21    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18    7   10   15    5   19   11   13   21      |T   35   37   33   38   38   32   39   34   34   34    34
 WRMS |   10   18    7   10   14    5   19   10   11   20      |NE  28   29   26   32   31   25   32   26   27   27    27
 MEDI |    9   18    7   10   14    5   19   10   12   19      |MD  29   29   25   31   31   25   33   27   27   27    26

Table 3.1781.4   GPS week: 1781   Day: 4   MJD: 56715.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   11   14    7    9   15    4  ---    8   21   17    4 |    34   36   35   28   34   32  ---   33   34   33    32
   2E |   14   19    6   10   22    5   20   12   15   11    5 |    21   23   19   22   25   19   22   21   21   20    21
   3  |   11   11    5   10   21    5   14    6   20   24    4 |    23   29   22   30   29   23   26   22   31   29    25
   4E |   12   18    7   10   13    6   17   21   24   15    5 |    31   28   29   24   30   27   28   35   32   31    28
   5  |   14   22    7    9   13    4   20   11   17   10    5 |    29   38   28   28   33   26   37   25   31   28    29
  X6  |   11   12    6   11  ---    4  ---    8   18  ---    4 |    22   25   21   24  ---   19  ---   19   27  ---    20
   7E |   12   20    6    9   21    5   20   12   20   15    5 |    46   50   43   49   56   44   48   44   53   45    47
  X8E |    7  ---  ---  ---  ---   32  ---  ---  ---  ---    0 |    34  ---  ---  ---  ---   36  ---  ---  ---  ---    35
   9  |   10   17    8   12   15    8   21    7   12   23    4 |    86   86   85   91   84   84   87   85   84   92    85
  10  |   15   17    6    9   16    3   14   10   16   20    4 |    25   20   23   26   30   21   22   25   19   28    23
  11  |    8   17    8    9   15    5   17   11   20   15    4 |    33   41   34   33   36   31   35   31   32   28    31
  12  |   11   17    5   10   15    3   21   16   16   22    5 |    26   28   23   28   31   23   29   26   26   24    24
  13  |    7   17    6    8   13    4   18   11   17   24    4 |    31   37   30   33   39   28   44   31   30   35    32
  14  |   17   13    5    6   19    5   15    8   20   21    4 |    30   32   29   34   34   30   30   31   25   25    30
  15  |   12   22    6    9   11    3   22   10   19   28    4 |    26   28   27   31   30   25   30   26   23   27    26
  16  |   14   16    5   13   16    4   21    8   23   23    5 |    20   25   18   24   26   20   26   19   25   17    20
  17  |   12   22    9   16   15    5   17   11   19   23    5 |    24   32   26   32   32   27   31   27   30   23    28
  18  |    7   17    6   11   19    3   21    9   17   23    4 |    25   31   23   34   36   23   27   26   22   23    26
  19  |    8   14    5   11   15    6   17    8   20   20    4 |    26   32   27   32   32   23   27   24   26   20    26
  20  |   14   20    5   13   15    9   14   13   17   19    5 |    33   38   31   33   33   31   31   32   36   36    31
  21E |    7   13    4   10   16    4   15    6   17   12    3 |    18   24   19   19   22   19   23   20   26   22    20
  22  |   10   14    6    9   16    4   19    8   13   18    4 |    28   30   29   36   40   28   29   32   24   28    30
  23  |   11   16    5   11   10    4   17    9   16   22    4 |    26   30   25   30   28   25   31   25   30   24    27
  24  |   12   18    6    8   16    5   15    9   19   13    4 |    58   54   54   60   65   55   58   52   54   57    54
  25  |   11   19    4    9   13    5   15   12   18   13    4 |    23   27   19   22   25   20   29   20   23   18    21
  26  |    9   14    6    8   12    4   13    8   17   14    3 |    26   21   23   27   27   22   23   23   16   24    24
 X27  |   10   14    8   11  ---    5   16    9   25   16    5 |    28   34   27   32  ---   27   35   27   36   28    28
  28  |   10   27    5   10   12    4   16   10   13   17    4 |    24   32   22   27   33   23   29   23   26   21    24
  29  |    8   16    5   12   13    7   20   11   23   39    4 |    27   29   25   28   29   27   32   25   36   41    26
 X30E |    7  ---  ---  ---  ---  458  ---  ---  ---  ---    0 |  9999  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
  31E |    7   17    4    9   15    7   16   10   18   10    4 |    24   26   20   24   30   20   23   20   24   20    22
  32  |   11   12    5   10   12    5   14    6   20   15    4 |    22   20   20   20   21   20   23   19   25   19    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    6   10   16    5   18   11   18   20      |T   29   32   28   32   34   28   32   28   30   29    29
 WRMS |   11   18    6   10   15    5   18   10   17   20      |NE  25   28   23   28   31   23   28   24   26   25    25
 MEDI |   11   17    6   10   15    5   17    9   18   18      |MD  26   30   25   28   31   25   29   25   26   27    26

Table 3.1781.5   GPS week: 1781   Day: 5   MJD: 56716.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   10   15    5    9   11    8  ---    7   12   15    4 |    35   31   33   30   30   29  ---   31   32   32    30
   2E |   14   20    7   10   21    4   23   13   10   11    5 |    20   24   19   21   21   18   24   19   21   20    18
   3  |   10   10    4    8   20    4   12    6   14   24    3 |    25   24   21   28   28   21   24   20   24   28    22
   4E |   12   18    9    9   19    5   17   19   16   16    5 |    23   28   22   24   26   22   26   32   30   24    23
   5  |   14   21    7   12   15    6   21   11   12   15    5 |    26   32   20   24   28   20   32   22   28   24    23
  X6  |   13   11    6   13  ---    7  ---    9   17  ---    5 |    27   24   24   25  ---   20  ---   20   29  ---    22
   7E |   17   24    8   11   18   12   21   14   15   16    5 |    98   90   92   92   95   92   88   96   98   90    93
   8E |   13   20    7   11   18    8   21   12   13   16    5 |    33   27   11   12   14   25   22   15   12   14    25
   9  |    7   17    8   13   23    6   22    9   14   25    5 |    95   93   88   86   95   87   96   87   88   93    90
  10  |   11   17    7    8   22    3   11   12   19   16    4 |    24   20   19   20   28   18   19   26   28   22    21
  11  |   10   13    6    8   16    6   13   10   15   17    4 |    34   33   31   33   38   31   35   29   31   28    30
  12  |   10   17    7    8   16    4   23   13   12   18    4 |    26   26   19   26   28   18   27   23   21   17    21
  13  |   13   16    8   12   15    6   20   12   13   25    4 |    30   36   30   31   38   29   39   31   30   33    30
  14  |   22   16    6   10   20    7   15   10   14   25    5 |    35   29   29   39   34   27   33   33   33   29    31
  15  |   11   21    8   10   12    7   27   12   14   29    5 |    28   26   26   32   29   24   30   29   22   23    25
  16  |   16   16    5   12   17    5   23   11   14   24    5 |    29   25   20   26   27   22   24   22   27   20    21
  17  |   12   25    8   18   14    6   21    9   17   23    5 |    24   33   24   31   33   24   31   27   29   21    25
  18  |    8   20    5   14   16    7   20   10   11   19    4 |    24   25   18   34   30   19   25   23   22   14    22
  19  |   10   16    5    9   12    4   19   11   15   24    4 |    29   29   25   29   31   26   28   23   28   21    25
  20  |    9   16    6   13   14    8   19   10   13   20    4 |    26   26   25   32   32   21   29   28   27   23    25
  21E |    7   15    7   10   20    7   17    7   17   14    4 |    14   18   14   17   22   13   18   13   17   18    12
  22  |    8   18    7   10   16    5   21    9   13   18    4 |    25   24   21   31   33   21   25   24   27   18    23
  23  |    9   16    6   11   12    4   15    8   13   24    4 |    27   28   27   32   29   26   29   25   27   18    26
  24  |   10   16    6    7   15    6   13    8   11   15    4 |    48   51   49   53   54   47   47   47   45   50    48
  25  |   10   18    5    8   13    4   16   11   12   15    4 |    22   29   21   24   27   21   30   22   20   23    21
  26  |    8   14    9   11   14    6   13   10   16   19    4 |    20   20   23   24   23   21   23   22   19   23    20
 X27  |   13   12    8   12  ---    4   16    8   10   15    4 |    24   26   23   25  ---   21   31   19   27   21    22
  28  |    8   21    6    9   13    4   14   10   16   16    4 |    29   34   31   35   39   29   34   30   32   26    31
  29  |   10   18    6    8   11    6   20   14   14   29    4 |    26   30   22   25   26   20   29   24   23   28    23
 X30E |    4  ---  ---  ---  ---  419  ---  ---  ---  ---    0 |  9999  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
  31E |    9   21    6    7   17    6   18   13   19    9    5 |    29   34   30   32   34   28   33   30   35   28    29
  32  |   10   11    4   11   14    7   12    8   11   14    3 |    21   17   15   23   21   15   19   15   23   16    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    7   11   16    6   19   11   14   20      |T   31   32   28   32   34   27   32   29   30   28    28
 WRMS |   11   18    7   10   15    6   19   11   13   19      |NE  26   26   22   27   29   21   27   23   25   22    23
 MEDI |   10   17    6   10   16    6   19   10   14   17      |MD  26   28   23   29   29   22   29   24   27   23    23

Table 3.1781.6   GPS week: 1781   Day: 6   MJD: 56717.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |    8   17    8    9   24   15  ---   17   15   16    5 |   100  107  107  101   97  101  ---  108  105  107   104
   2E |   12   18    7    9   23    5   19   11   13   15    5 |    20   22   20   26   27   20   22   20   25   23    20
   3  |    8   11    4   10   15    4   12    7   12   20    3 |    25   24   22   29   30   23   24   23   25   26    23
   4E |   11   21    9   10   18    6   18   14   16   17    5 |    31   31   34   31   29   30   32   31   32   33    30
   5  |    9   21    6   11   16    6   21   11   10   15    4 |    31   39   23   25   31   24   38   24   30   28    26
   6  |   12   11    5   14   12    7   13    7   24  ---    4 |    26   22   20   32   20   22   21   22   32  ---    23
   7  |    8   24    6    5   20    8   16    9   10   12    4 |    55   59   54   56   60   53   58   54   61   56    55
   8E |   16   16    6    9   16    6   22   15   14   17    5 |    29   22   13   16   15   26   22   15   13   17    28
   9  |    9   16    6   10   22    5   14   11   12   28    4 |    91   94   88   89   97   89   97   90   85   99    90
  10  |   10   20    5    8   22    5   15   12   14   23    4 |    25   22   27   30   37   23   23   32   26   33    26
  11  |    7   15    5    7   23    8   14   12   15   21    4 |    50   53   54   52   50   50   53   50   52   55    51
  12  |    8   19    5    8   16    5   18   13   12   14    4 |    26   25   16   26   28   17   24   21   26   12    20
  13M |   10   18    5    8   15    3   17    6   12   24    4 |    32   39   31   36   43   32   41   37   30   40    33
  14  |   17   17    6   12   16    6   14   10   13   21    4 |    34   32   32   44   37   34   33   37   34   32    34
  15  |   11   22    7    8   14    5   23    8   12   30    4 |    28   29   31   39   36   31   31   33   30   30    31
  16  |   11   21    5   13   14    4   21   11   14   27    4 |    23   24   16   26   27   17   24   21   24   21    20
  17M |   13   21   10   16   14    4   17   15   14   29    5 |    23   35   27   36   33   27   32   35   34   30    29
  18  |   10   20    5   18   16    5   19    7   11   22    4 |    33   29   27   47   40   30   29   31   30   26    31
  19M |    8   18    7   11   13    5   19   10   15   25    4 |    30   29   28   37   34   27   30   27   27   27    28
  20M |   14   19    8   11   18    4   18   11   13   19    5 |    37   29   34   38   38   31   29   38   33   37    33
  21E |    7   13    3   12   14    6   16    7   11   21    3 |    20   20   17   27   23   15   25   18   20   24    19
  22  |    8   17    5   11   15    3   18   10   12   19    4 |    36   30   36   46   45   36   33   39   38   32    37
  23M |    7   16    6   12   12    3   14   11   13   21    4 |    24   28   25   36   32   25   30   29   25   24    26
  24  |    9   17    6   10   16    5   14   12   11   12    4 |    78   74   74   80   82   76   78   73   76   73    76
  25  |    9   20    5   10   12    6   16   11   12   17    4 |    21   30   17   25   25   17   31   18   21   19    20
  26  |   10   15    6    9   16    3   13   11   15   19    4 |    22   21   27   32   31   23   25   28   20   27    25
 X27  |    9   12    6   10  ---    5   16    9   14   16    4 |    28   28   23   29  ---   23   32   23   30   24    25
  28  |    9   17    5    9   16    4   17   10   12   18    4 |    28   32   27   31   36   25   32   34   28   26    29
  29  |    8   19    7   13   12    7   20   11   20   40    4 |    33   37   30   32   33   28   40   30   30   43    30
 X30E |    3  ---  ---  ---  ---  199  ---  ---  ---  ---    0 |  9999  ---  ---  ---  --- 9999  ---  ---  ---  ---  9999
  31E |    7   22    5    8   18    4   16   10   12    8    4 |    34   40   30   38   40   29   37   30   28   30    31
  32M |    7   13    6    8   18    7   15   10   17   13    4 |    30   34   34   31   36   29   33   33   29   30    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18    6   11   17    5   17   11   14   21      |T   35   36   33   39   39   33   35   35   35   36    34
 WRMS |   10   18    6   10   15    5   17   10   12   21      |NE  27   28   24   32   32   24   29   27   28   27    26
 MEDI |    9   18    6   10   16    5   16   11   13   19      |MD  30   30   27   32   34   27   31   31   30   30    29



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 4.1781   GPS week: 1781   MJD: 56711.0-56717.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3009 |U    5     4    14 |U    7     9    27 |U    7     7    18 |
emr | emr 2952 |     6     6    18 |U    9    12    29 |    11     8    20 |
esa | esa 2962 |     4     4    13 |U    8     9    28 |     9     7    19 |
gfz | gfz 2952 |U    5     4    17 |U    7     9    28 |U    9    10    18 |
grg | grg 2784 |U    7     7    19 |U    9    11    32 |U   12    11    24 |
igr | igr 2953 |     5     4    14 |     7     9    28 |     8     7    19 |
igs | igs 2922 |     5     4    16 |     8    10    29 |    11    10    19 |
jpl | jpl 2829 |     6     6    17 |     8    12    38 |U   13    10    24 |
mit | mit 2962 |    21    18    56 |U   11    13    45 |U   41    18    51 |



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 5.1781.0   GPS week: 1781   Day: 0   MJD: 56711.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2971 |     4     4    11 |     7     8    22 |     8     6    21 |
emr | emr 2963 |     5     6    16 |     9     7    26 |    10     6    22 |
esa | esa 2976 |     4     4    13 |     8     9    23 |    10     7    22 |
gfz | gfz 2964 |     4     4    16 |     7     8    25 |     9     9    18 |
grg | grg 2880 |     6     5    15 |     9     8    34 |    11     7    21 |
igr | igr 2976 |     4     4    13 |     8    10    23 |     8     7    20 |
igs | igs 2943 |     4     4    15 |     8    10    26 |    11     9    20 |
jpl | jpl 2866 |     6     9    19 |     7     7    32 |    11     7    23 |
mit | mit 2976 |     5     6    20 |    10    21    35 |     9     8    19 |

Table 5.1781.1   GPS week: 1781   Day: 1   MJD: 56712.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2974 |     4     2    14 |     7    10    35 |     7     6    15 |
emr | emr 2964 |     6     7    17 |     9    13    35 |    10     8    15 |
esa | esa 2976 |     4     3    13 |     7    11    36 |     9     6    15 |
gfz | gfz 2965 |     5     3    17 |     7    11    30 |     8     9    15 |
grg | grg 2784 |     6     7    16 |     9    11    29 |     9     8    19 |
igr | igr 2974 |     4     3    12 |     7    12    35 |     7     6    19 |
igs | igs 2818 |     4     4    16 |     7    11    35 |    17     7    15 |
jpl | jpl 2868 |     6     8    14 |     8    13    30 |    12    12    28 |
mit | mit 2976 |     5     3    17 |     8    10    33 |    13    11    20 |

Table 5.1781.2   GPS week: 1781   Day: 2   MJD: 56713.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3044 |     6     6    22 |    10     9    24 |     6     7    16 |
emr | emr 2966 |     7     5    27 |    11     9    31 |    10    11    22 |
esa | esa 2976 |     6     5    22 |    10     9    27 |     8     8    20 |
gfz | gfz 2963 |     6     5    28 |     9     8    28 |     9    12    18 |
grg | grg 2784 |     7     7    24 |    12    11    32 |    10    11    25 |
igr | igr 2976 |     5     6    21 |     9     7    27 |     8     9    22 |
igs | igs 2966 |     6     5    27 |    10     8    25 |     9    12    21 |
jpl | jpl 2870 |     6     5    23 |     9    10    32 |    11    12    25 |
mit | mit 2976 |     6     6    26 |    12    21    62 |   144    19    93 |

Table 5.1781.3   GPS week: 1781   Day: 3   MJD: 56714.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3049 |     5     6    13 |     7    10    29 |     6     6    18 |
emr | emr 2967 |     7     7    17 |     9    13    36 |    11     8    19 |
esa | esa 2976 |     6     5    13 |     8    10    31 |     9     7    22 |
gfz | gfz 2966 |     5     4    14 |     7    10    31 |     9    10    19 |
grg | grg 2688 |     6     7    18 |     9    11    34 |    10     9    21 |
igr | igr 2976 |     6     5    13 |     7    11    34 |     7     7    22 |
igs | igs 2971 |     5     5    15 |     8    12    35 |     9     8    20 |
jpl | jpl 2872 |     7     6    16 |    10    23    83 |    13     9    28 |
mit | mit 2976 |    59    37    68 |    18    15    80 |    19    13    53 |

Table 5.1781.4   GPS week: 1781   Day: 4   MJD: 56715.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2949 |     5     4    20 |     7    12    27 |     9     8    18 |
emr | emr 2874 |     6     5    20 |    10    14    29 |    12    10    18 |
esa | esa 2880 |     5     4    13 |     7    10    27 |    11     8    19 |
gfz | gfz 2873 |     5     4    15 |     6    10    25 |    12    10    17 |
grg | grg 2688 |     9    10    17 |     8    12    31 |    19    17    34 |
igr | igr 2880 |     5     4    14 |     7    11    26 |     9     9    19 |
igs | igs 2831 |     5     4    14 |     7    11    27 |    13    11    19 |
jpl | jpl 2684 |     6     5    20 |     8    13    30 |    11    10    20 |
mit | mit 2880 |    10     8    28 |     7     8    37 |    13    10    20 |

Table 5.1781.5   GPS week: 1781   Day: 5   MJD: 56716.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3030 |     5     4    11 |     8     8    29 |     7     8    19 |
emr | emr 2968 |     7     5    18 |    10    12    26 |    11     9    23 |
esa | esa 2976 |     4     3    10 |     8     8    28 |    10     8    19 |
gfz | gfz 2968 |     6     5    17 |     8     9    31 |    10    10    21 |
grg | grg 2784 |     7     6    16 |    11    15    36 |    13     9    25 |
igr | igr 2936 |     5     4    16 |     8     8    32 |     9     8    18 |
igs | igs 2956 |     5     4    14 |     8     8    29 |    10    10    22 |
jpl | jpl 2776 |     6     6    17 |     9    10    34 |    12     9    21 |
mit | mit 2976 |     8    12    19 |     8    10    32 |    76    60   136 |

Table 5.1781.6   GPS week: 1781   Day: 6   MJD: 56717.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |     5     4     8 |     5    10    23 |     7     6    15 |
emr | emr 2968 |     5     5    13 |     7    13    25 |    11     7    19 |
esa | esa 2976 |     4     3     9 |     6     9    23 |     6     7    14 |
gfz | gfz 2968 |     4     3    10 |     6     8    23 |    10    13    21 |
grg | grg 2880 |     6     8    30 |     7    11    26 |    14    16    24 |
igr | igr 2957 |     5     3    10 |     5     8    22 |     8     6    17 |
igs | igs 2969 |     4     3    11 |     6    10    24 |    10    12    19 |
jpl | jpl 2872 |     6     6    13 |     7    10    27 |    19    12    25 |
mit | mit 2976 |    57    51   213 |    10     9    40 |    14     8    17 |


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 6.1781   GPS week: 1781   MJD: 56711.500-56717.500

                                                         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     -15     -92      10     -2 |      10     17
            |      20      15      77     117      4 |       2
emr   uuuuu |       2     -10     159     103     -3 |      62     64
            |      27      24      63      96     13 |       2
esa   uuuuu |      -6     -19      87     -93      0 |       8     17
            |      16      16      24      60      2 |       1
gfz   uuuuu |     -13     -60      49    -222      4 |       7     15
            |      11      21      76     136      4 |       1
grg   uuuuu |      41      47    -111      55      1 |      15     21
            |      20      22      65     130      7 |       2
igr   xxxxx |       2      31       4      55     -1 |       1     14
            |      19      16      46      66      3 |       2
irf   xxxxx |      14      14     -48      15     -3 |      -1     15
            |      13      11      27      20      4 |       3
jpl   uuuuu |      16     -42      61      72      3 |      26     30
            |      49      27      82      69      6 |       1
mit   uuuuu |      12      26    -130      71     -6 |      15     22
            |      24      35      67      91      5 |       4
ngs   uuuuu |       5     100     -49     217     -1 |       1     12
            |      86      40     116     148      4 |       3
sio   xxxxx |      33       8      -4     143      8 |      58     58
            |      36      16      50      97     34 |      26


Table 7.1781.0   GPS week: 1781   Day: 0   MJD: 56711.500

                                                         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 |     -38     -31     -94      37      0 |      12     18
emr   uuuuu |     -24       9      78      57     19 |      61     63
esa   uuuuu |      -6     -16      69     -49      2 |       9     18
gfz   uuuuu |       3    -101     104      36     10 |       8     15
grg   uuuuu |      61      13       6      82     -6 |      19     23
igr   xxxxx |      -3      41      -2      70      1 |       4     14
irf   xxxxx |      13      11     -85     -10     -5 |       4     15
jpl   uuuuu |     -55     -42     153      87     -1 |      28     33
mit   uuuuu |      12      31    -226     -79     -5 |      20     25
ngs   uuuuu |      41     159    -118     -70     -6 |       6     12
sio   xxxxx |      -3      -8      53      25     82 |       0      0

Table 7.1781.1   GPS week: 1781   Day: 1   MJD: 56712.500

                                                         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 |     -45       0    -122    -146      5 |      11     18
emr   uuuuu |     -22     -29     199     115     -9 |      62     64
esa   uuuuu |      -4      -6      87     -91      0 |       8     17
gfz   uuuuu |     -11     -75     139    -144      2 |       7     14
grg   uuuuu |      45      46     -93     131      5 |      16     21
igr   xxxxx |      -7      17     -14      16     -3 |       2     14
irf   xxxxx |      15       8     -54      15     -7 |       2     15
jpl   uuuuu |     -38     -42      78     154      8 |      25     30
mit   uuuuu |      10      26    -201      42    -10 |      18     24
ngs   uuuuu |      66      72     -54     174     -4 |       2     11
sio   xxxxx |      21      -9     -15     125      9 |      69     69

Table 7.1781.2   GPS week: 1781   Day: 2   MJD: 56713.500

                                                         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 |     -21      -4      -7     -68      0 |      11     18
emr   uuuuu |      -8     -45     172       8     11 |      61     63
esa   uuuuu |      15     -30      89    -193      1 |       8     17
gfz   uuuuu |     -14     -40      22    -219      6 |       7     14
grg   uuuuu |      50      55    -139     212      4 |      15     20
igr   xxxxx |      -7      22      22     -72      0 |       2     14
irf   xxxxx |      24       0     -25      18     -6 |       0     15
jpl   uuuuu |      33     -10    -109      15      3 |      25     30
mit   uuuuu |      30     -33    -100     192    -12 |      16     23
ngs   uuuuu |     -81     134      17     273     -4 |       1     12
sio   xxxxx |      47       0      79     261      3 |      70     70

Table 7.1781.3   GPS week: 1781   Day: 3   MJD: 56714.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       6     -17    -171      66      0 |      12     19
emr   uuuuu |      31     -23     174     187    -11 |      64     66
esa   uuuuu |      -7     -18     134    -130      0 |       9     18
gfz   uuuuu |       1     -46     -63    -321     -2 |       7     15
grg   uuuuu |      13      67     -96     -24     -8 |      16     21
igr   xxxxx |     -15       5      88      62     -3 |       2     14
irf   xxxxx |      27       4     -13      41     -7 |       0     15
jpl   uuuuu |      72      -7      68      -1     11 |      25     30
mit   uuuuu |      44      -3     -65     159    -10 |      16     23
ngs   uuuuu |    -123      89      40     247      5 |       0     11
sio   xxxxx |      65       5     -31     247     -5 |      72     72

Table 7.1781.4   GPS week: 1781   Day: 4   MJD: 56715.500

                                                         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     -36    -201      65     -5 |      11     19
emr   uuuuu |      17      -3     264     252    -11 |      63     66
esa   uuuuu |       5      -6      65    -121      0 |       9     18
gfz   uuuuu |     -21     -60     -26    -370      5 |       6     16
grg   uuuuu |      25      65    -107     113     -1 |      15     21
igr   xxxxx |      19      45      12     115     -4 |       1     16
irf   xxxxx |      15      25     -27      29     -1 |      -2     18
jpl   uuuuu |       6     -46     114      93     -3 |      27     31
mit   uuuuu |     -14      68     -51     103     -6 |      14     24
ngs   uuuuu |      63      45     -10     416      2 |      -1     12
sio   xxxxx |      86      30     -54     193    -10 |      65     66

Table 7.1781.5   GPS week: 1781   Day: 5   MJD: 56716.500

                                                         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 |     -35     -21     -40     -83     -9 |       9     15
emr   uuuuu |      41      25     114     124    -14 |      61     63
esa   uuuuu |      -8     -49      70     -36      0 |       8     16
gfz   uuuuu |     -22     -48      49    -302      5 |       5     14
grg   uuuuu |      65      63    -208      66     11 |      14     20
igr   xxxxx |      37      39     -17     120      3 |       0     14
irf   xxxxx |      15      20     -75      27      2 |      -4     15
jpl   uuuuu |      26     -62      60     155      5 |      26     29
mit   uuuuu |      24      53    -159      67     -2 |      11     20
ngs   uuuuu |     -41     121      58     271     -2 |      -1     12
sio   xxxxx |      33      18     -22     127    -13 |      65     66

Table 7.1781.6   GPS week: 1781   Day: 6   MJD: 56717.500

                                                         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 |       3       1     -11     200     -3 |       7     14
emr   uuuuu |     -19      -5     112     -19    -10 |      60     62
esa   uuuuu |     -37      -7      96     -27     -6 |       7     15
gfz   uuuuu |     -26     -52     117    -234      5 |       6     15
grg   uuuuu |      29      23    -142    -192      2 |      13     19
igr   xxxxx |     -11      48     -62      74     -4 |      -2     13
irf   xxxxx |     -13      31     -56     -14      3 |      -5     15
jpl   uuuuu |      68     -85      62      -1     -5 |      25     28
mit   uuuuu |     -23      43    -107      12      1 |       9     17
ngs   uuuuu |     107      81    -273     210      2 |      -3     10
sio   xxxxx |     -15      23     -35      21    -12 |      64     65



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