[IGSREPORT-26004] Wk 2006 IGS Final Orbits

acc acc at igs.org
Sun Jul 8 03:45:37 PDT 2018


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2006   (Jun 17, 2018 - Jun 23, 2018)

Contacts: acc at igs.org


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

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

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

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data at each SP3 epoch. This is
primarily intended for testing clock solution precision as well as the
orbit/clock consistency.

 Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c  [distance unit],

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility with broadcast GPS time, the IGS clocks use
the linear combination of phase-smoothed P1 and P2 pseudorange data to remove
the 1st order ionospheric delay, with no other delay calibrations applied.


SOFTWARE:
---------

The weighted average software used was originally developed by T. Springer
and G. Beutler in 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

  Beutler G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
  Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

  Kouba J., Mireault Y. and F. Lahaye, 1995, 1994 IGS Orbit/Clock Combination
  and Evaluation, Appendix I of the Analysis Coordinator Report, International
  GPS Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

  Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
  pp. 45-76.

  Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
  pp. 55-100.


PRODUCTS GENERATED:
-------------------

The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite over each daily arc. Note that each file
contains all the satellites that appear in any of the centre ephemeris files.
If a satellite or centre was excluded from combination, a note in the REMARKS
section of this report will identify the exclusion and the reason.

The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions. AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 10 days, i.e. up to 5 days prior to the last
non-predicted day of Bulletin A. AC LOD biases are removed and the new AC
bias-free LODs are used to compute a weighted IGS LOD which in turn is
integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as Bulletin
A fifth day prior to its last non-predicted day. Both IGS LOD and UT1-UTC
values are printed in the IGS Final erp file.



The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

igs2006[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2006[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2006[0-6].cls  IGS GPS clock combination summary report.
igs20067.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20067.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   | FAA1 OUS2 TIXI ULAB FAA1 NAUR OUS2 SCUB TIXI ULAB
                0  |  EMR   | 18 YAKT
                0  |  ESA   | FAA1 MAL2 NRMD FAA1 MAL2 NRMD
                0  |  GFZ   | 18 21 18 21 ALBH BJNM FAA1 GODE MAL2 REUN ALBH BJNM
                0  |  GFZ   | CUSV FAA1 GODE MAL2 REUN
                0  |  GRG   | 21 21 GLSV KIT3 LPGS RIO2 GLSV KIT3 LPGS RIO2 TONG
                0  |  JPL   | LAUT POLV
                0  |  MIT   | BAKE BJNM CEDU CHUR DARW DUBO MAL2 PIE1 SCH2 WHIT
                0  |  MIT   | BAKE BJNM CEDU CHUR DARW DUBO FAA1 MAL2 PIE1 SCH2
                0  |  MIT   | WHIT
                1  |  COD   | MCIL MDVJ TLSE YELL
                1  |  EMR   | YAKT
                1  |  ESA   | FAA1 KIRI MAL2 FAA1 KIRI MAL2
                1  |  GFZ   | 18 21 18 21 BJNM FAA1 GODE MAL2 REUN YELL BJNM FAA1
                1  |  GFZ   | GODE MAL2 REUN YELL
                1  |  GRG   | 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                1  |  GRG   | 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 5 6 7 8
                1  |  GRG   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                1  |  GRG   | 26 27 28 29 30 31 32 KIT3 KIT3
                1  |  JPL   | 18 18 CHUR CHUR LAUT
                1  |  MIT   | ALBH BAKE CHPI DRAO FALK HLFX HOB2 PIE1 WAB2 ALBH
                1  |  MIT   | BAKE CHPI DRAO FALK HLFX HOB2 PIE1 WAB2
                2  |  COD   | FAA1 GLSV TIXI FAA1 GLSV KIRI TIXI
                2  |  EMR   | 18
                2  |  ESA   | DAV1 MAL2 OUS2 TLSE DAV1 MAL2 OUS2 TLSE
                2  |  GFZ   | 18 24 18 24 GODE MDVJ REUN GODE MDVJ REUN
                2  |  GRG   | ARTU GLSV KIT3 LPGS WIND ARTU GLSV KIT3 KRGG LPGS
                2  |  GRG   | QIKI TONG WIND
                2  |  JPL   | 18 18 POLV LAUT POLV
                2  |  MIT   | ALGO BAKE CEDU CHPI CHUR DRAO FLIN HOB2 SUTH WAB2
                2  |  MIT   | ALGO BAKE CEDU CHPI CHUR DRAO FLIN HOB2 SUTH WAB2
                3  |  COD   | TIXI TLSE KIRI TIXI TLSE
                3  |  ESA   | 18 18 CUSV KOUR CUSV KOUR MAL2 WIND
                3  |  GFZ   | 18 18 GODE MAL2 REUN GODE MAL2 REUN
                3  |  GRG   | 18 18 GLSV KIT3 RABT SEYG BRST DAV1 GLSV KIT3 RABT
                3  |  GRG   | SEYG TONG
                3  |  JPL   | LAUT LMMF
                3  |  MIT   | BAKE CHPI CHUR DRAO DUBO HLFX NRC1 STJO SUTH TWTF
                3  |  MIT   | VILL YELL BAKE CHPI CHUR DRAO DUBO HLFX NRC1 STJO
                3  |  MIT   | SUTH TWTF VILL YELL
                4  |  COD   | MAL2 SEYG TIXI KIRI SEYG TIXI TLSE
                4  |  EMR   | DAEJ HOB2 OPMT YAR2
                4  |  ESA   | 19 20 21 22 28 LAUT MAL2 REUN TLSE TOW2 YELL REUN
                4  |  ESA   | TLSE
                4  |  GFZ   | 18 18 BJNM GODE MAL2 REUN BJNM GODE MAL2 REUN
                4  |  GRG   | FAA1 KIT3 LHAZ MOBS SEYG WIND COCO FAA1 KIT3 LHAZ
                4  |  GRG   | MAL2 MOBS SEYG TONG TOW2 WIND
                4  |  JPL   | 18 FAA1 LAUT MAL2
                4  |  MIT   | ALGO BAKE CEDU CHPI CHUR FLIN GRAZ HOB2 MAL2 WAB2
                4  |  MIT   | WHIT ALGO BAKE CEDU CHPI CHUR FLIN GRAZ HOB2 MAL2
                4  |  MIT   | MEDI WAB2 WHIT
                5  |  COD   | DAV1 SEYG TIXI DAV1 NAUR SEYG TIXI
                5  |  EMR   | PTBB
                5  |  ESA   | 22 18 FAA1 FAA1
                5  |  GFZ   | 18 18 FAA1 GODE KOUR REUN FAA1 GODE KOUR NRIL REUN
                5  |  GRG   | 18 21 FAA1 KOUR FAA1 KOUR LHAZ TONG
                5  |  JPL   | LAUT
                5  |  MIT   | BAKE CHPI CHUR DUBO FAA1 FLIN GRAZ MAL2 SUTH ABPO
                5  |  MIT   | BAKE CHPI CHUR DUBO FAA1 FLIN GRAZ MAL2 SUTH
                6  |  COD   | FAA1 TIXI NAUR TIXI
                6  |  EMR   | HOB2
                6  |  ESA   | 18 18 FAA1 MAL2 MAL2
                6  |  GFZ   | 18 21 18 21 BJNM GODE MAL2 REUN BJNM GODE LHAZ MAG0
                6  |  GFZ   | MAL2 REUN
                6  |  GRG   | 18 21 18 21 BRST SEYG TLSE BRST MAL2 SEYG TLSE TONG
                6  |  GRG   | TUVA
                6  |  JPL   | LAUT
                6  |  MIT   | BAKE CHPI CHUR FAA1 FLIN GRAZ HARB HLFX SCH2 WAB2
                6  |  MIT   | WHIT BAKE BJNM CHPI CHUR FLIN GRAZ HARB HLFX SCH2
                6  |  MIT   | WAB2 WHIT

 5. Starting on 22-Oct-2000 (GPS Week 1085-0; MJD=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. The AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 6. 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 G20 |    |    |    |    |    |  4 |    |

 7. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) all IGS products, including the IGS combined
    orbits, are based on the IGS realization of the ITRF2005 reference frame
    (IGS05). For more information see IGSMAIL #5447. The IGS05 frame is also the
    basis for the homogeneously reprocessed IGS products from GPS Weeks 730 to 1459
    (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products, are
    based on the IGS realization of the ITRF2008 reference frame (IGS08). For more
    information see IGSMAIL #6354.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.

 8. 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     .4     .7      12     12     -7    -.29
       EMR  |   0 |   -3.8  -13.1   -5.1      -1    -30     40    -.05
       ESA  |   0 |    -.3     .2    -.3      15      6     15    -.37
       GFZ  |   0 |     .1     .1     .2      -8    -19      2    -.23
       GRG  |   0 |    -.2   -4.8   -4.6      46      4     28    -.43
       JPL  |   0 |    4.4   -7.0   -5.9       3     10      5    -.34
       MIT  |   0 |   -1.9   -3.5    5.5      -5     11      6    -.0 
       NGS  |   0 |   -1.4   -8.5   -3.6      32      5    -79    -.14
       SIO  |   0 |    2.6    1.3   -3.9       4    -11    -11    -.11

       COD  |   1 |     .1     .3     .8       9      1      1    -.46
       EMR  |   1 |   -3.4   -8.8   -2.6       1    -29     52    -.01
       ESA  |   1 |     .1    -.0    -.4      10    -13      9    -.49
       GFZ  |   1 |     .5     .3     .3      -3    -25    -12    -.29
       GRG  |   1 |     .5   -5.1    5.0      56     -1     13    -.44
       JPL  |   1 |    1.2  -11.0   -7.8       8    -15      5    -.34
       MIT  |   1 |    1.8   -3.1    4.2       5     45     16     .12
       NGS  |   1 |    1.8   -7.9    6.5     -14    -73    -86    -.36
       SIO  |   1 |     .6    -.7     .0      19    -30      6    -.24

       COD  |   2 |    -.2     .2     .4       8     12      5    -.36
       EMR  |   2 |   -3.9   -3.7   -1.1      -4     -1     39    -.19
       ESA  |   2 |    -.1    -.3     .0      -4    -12     13    -.54
       GFZ  |   2 |     .0     .0    -.0      -5    -24      1    -.23
       GRG  |   2 |    1.6   -2.2   -3.3      55    -24     40    -.49
       JPL  |   2 |    -.5  -10.8   -5.3      -1      1    -10    -.50
       MIT  |   2 |   -2.7   -1.2    8.8     -22     51      2    -.11
       NGS  |   2 |   -1.6   -9.6   -6.0     -17     23    -93    -.18
       SIO  |   2 |   -1.0    1.8    6.2     -24     15    -14    -.18

       COD  |   3 |    -.2     .2     .3       9     10     -3    -.33
       EMR  |   3 |   -4.4    1.8   -4.0      -4      5     43    -.09
       ESA  |   3 |     .2    -.2     .3       3    -19      6    -.39
       GFZ  |   3 |     .1     .5     .4       2    -27     -3    -.29
       GRG  |   3 |    1.3   -2.8   -2.3      44      6      5    -.25
       JPL  |   3 |    3.0   -1.0   -3.4      -4      6     -5    -.26
       MIT  |   3 |    -.8   -2.5    6.8      -5     50     -8    -.10
       NGS  |   3 |    2.9   -4.7   -7.1      26     20    -57    -.18
       SIO  |   3 |   -1.3    2.5   -2.0       6     11    -10    -.26

       COD  |   4 |    -.2     .5     .9      22     14    -11    -.39
       EMR  |   4 |    5.8    -.3   -3.4     -13     -1     26    -.08
       ESA  |   4 |     .5     .4     .5      14    -34     10    -.52
       GFZ  |   4 |     .4     .4     .3       4    -32     -5    -.28
       GRG  |   4 |    1.8   -1.7    3.3      47    -25     12    -.30
       JPL  |   4 |    3.4   -3.5   -4.0       0      8     -3    -.22
       MIT  |   4 |    1.3   -4.4    8.5     -11     45     -7    -.02
       NGS  |   4 |     .7    1.6    1.3      24    -42     -9    -.22
       SIO  |   4 |    3.0    -.1    4.2     -10     -6    -16    -.0 

       COD  |   5 |    -.3     .4     .6      16     14      1    -.41
       EMR  |   5 |    3.2   -3.2     .5      -7     -2     14    -.06
       ESA  |   5 |    -.7    -.4    1.0       1    -12      7    -.25
       GFZ  |   5 |     .3    -.2     .2     -19    -27      1    -.28
       GRG  |   5 |    3.0   -1.3    1.8      12     30     13    -.43
       JPL  |   5 |    7.6   -7.3   -4.3       0     10    -12    -.45
       MIT  |   5 |    2.2   -5.3    4.8     -36     41    -18    -.11
       NGS  |   5 |    1.2  -10.8    7.9     -41   -115    -68    -.38
       SIO  |   5 |     .7   -2.8    4.4      -1    -16    -13    -.13

       COD  |   6 |    -.4     .6    1.2      19     20     -9    -.54
       EMR  |   6 |   -2.3   -4.0    1.0      14      4     30    -.18
       ESA  |   6 |     .1     .4    1.7       4    -18      8    -.39
       GFZ  |   6 |     .5     .3     .6      -3    -45     -2    -.41
       GRG  |   6 |     .5     .1  -12.3      56    -26     30    -.47
       JPL  |   6 |    3.3   -6.9   -2.8     -14     -5    -20    -.46
       MIT  |   6 |     .2   -6.1    3.8     -14     18      7    -.32
       NGS  |   6 |   -1.4   -5.3    4.2       2    -56    -72    -.58
       SIO  |   6 |   -2.1    1.4   14.0      -6    -21    -13    -.21


 9. 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.

10. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        ftp://igs.org/pub/station/general/igs14.atx


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.2006.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2006.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 2.2006.[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 3.2006.[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 5.2006.0-6). 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 2006 summary.                       (Jun 17, 2018 - Jun 23, 2018)

Table 1.2006.a   GPS week: 2006   MJD: 58286.000-58292.000

         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  261|    1    -1     0     6   -19    -9  -.04   10    9 |    -629      18      7     94
        |    0     0     0     8    11    10   .03           |     526     580
emr   80|   -1    -3    -1    -4    -7    45   .18   12   12 |  139187     124     14     95
        |    0     0     1    15     8     9   .02           |     842     507
esa  150|    0     0    -2     0     0   -12  -.09    9    9 |   -1523    -357      8    204
        |    0     0     1    11    12    11   .03           |    1583    1500
gfz  180|    0     2     2   -15   -11   -14   .03   11   10 |    -206     -61     12    126
        |    0     0     1    22    12    11   .02           |     246     363
grg  107|    2     0    -2    -5     3   -20  -.08   13   12 |     -16     119 142865 143000
        |    1     0     4     6    16    25   .03           |     121     230
igr  n/a|    0     0     0   -11    -5    -3  -.07    4    4 |    2187     204     10     68
        |    0     0     0     7     6     9   .03           |     959     584
jpl   80|    0     0     0     8    13    23   .16    8    8 |  136207     384      8    111
        |    0     0     0    10    11    10   .02           |     913     572
mit  349|    0     0     2     8     1     4  -.06   11   10 |      29     -77     48    521
        |    0     0     1    25    22    10   .01           |     228     372
ngs  205|    0     0     1    -4     6     2  -.10   10    9 |    -660      67   1027   2230
        |    1     0     3    20    23    22   .02           |     491     552
sio  339|    0     0     3    12     5   -29  -.14   15   15 |     ---     ---    ---    ---
        |    0     0     1    30    20    24   .04           |     ---     ---


Table 1.2006.b   GPS week : 2006   MJD: 58286.000-58292.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2006.0   GPS week: 2006   Day: 0   MJD: 58286.000                            

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  258|    0    -2     0    17   -15   -28  -.06   13   12 |    -329    -211      8     89
emr   80|   -1    -5    -1     0    -9    28   .20   12   12 |  138227       5     17    104
esa  150|    1     1    -3    10     7   -28  -.14    9    9 |   -2752    -173      8    191
gfz  178|   -1     4     3    -9   -28   -34   .03   11   10 |    -249    -116     12    111
grg  103|    1     0    -4    -5     0     6  -.07   13   13 |     163    -119     10    125
igr  n/a|    0     0     1     0    -3   -22  -.09    6    6 |    1255    -235     13     69
jpl   80|   -1     0     0    -6     8    13   .14    8    8 |  134664     309      9    103
mit  349|    0     0     5    41   -18     8  -.08   12   10 |     231    -405     59    557
ngs  207|    0     0     3   -46    35    43  -.07   11   10 |    -370    -189   1136   2392
sio  337|   -1     0     3    50     5   -16  -.07   17   18 |     ---     ---    ---    ---

Table 2.2006.1   GPS week: 2006   Day: 1   MJD: 58287.000                            

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  257|    1     0    -1     3   -18    -5  -.04   10    9 |    -457    -320      7    117
emr   80|   -3    -3    -4    20    -6    47   .23   12   12 |  138465     295     14     99
esa  150|    0     0    -2    -8    -4   -25  -.09    9    9 |     390   -2679      8    219
gfz  181|   -1     2     3     6     3   -22   .01   11   10 |    -286     -88     12    122
grg  106|    2     0     1    -1     3     0  -.05   11   11 |       0       0 999999 999999
igr  n/a|    0     0     0    -9     0     3  -.07    5    5 |    1230      12     10     68
jpl   80|   -2     0     0    25     2     5   .14    9    9 |  136188     536      9    126
mit  350|    1     0     3   -33    12    -7  -.07   12   11 |     235    -140     43    591
ngs  203|    0     1     3     3    13    -2  -.07   11    9 |    -465    -317   1067   2056
sio  338|    0     0     1   -25    -8    -3  -.15   16   17 |     ---     ---    ---    ---

Table 2.2006.2   GPS week: 2006   Day: 2   MJD: 58288.000                            

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     6   -14    -3   .01   10    9 |    -474    -314      6     75
emr   80|    0    -2    -1     5     0    49   .18   13   13 |  138768    1175     14     80
esa  150|    0     0    -1    -7   -15    -5  -.08    9    9 |    -276   -1141      8    195
gfz  183|   -1     2     4     0   -22   -13   .02   10   10 |    -316     122     13    168
grg  110|    0     1    -1     1   -12    10  -.10   11   10 |    -207     145      9    152
igr  n/a|    0     0     0    -5   -10    -4  -.06    4    4 |    1232    1402     11     68
jpl   80|   -1     0     0     0    14    22   .15    8    8 |  135600    1556      9    125
mit  349|    0     0     3    15    32     9  -.08   12   11 |    -252     124     53    474
ngs  211|    0     0    -3   -12    13   -28  -.12   10    8 |    -569    -160    925   2017
sio  337|    0     0     1     7     9   -48  -.11   16   16 |     ---     ---    ---    ---

Table 2.2006.3   GPS week: 2006   Day: 3   MJD: 58289.000                            

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    -1     0    14   -35   -19  -.05   10    9 |   -1802    1310      6    106
emr   80|   -1    -2    -1   -17   -17    44   .16   12   12 |  140350    -103     14     81
esa  150|    1     0     0    -8    -1   -19  -.10    9    9 |    -181   -1499      7    186
gfz  180|   -1     2     3   -25    -2    -4   .02   12   11 |      78    -488     14    124
grg  112|    2     0     0   -11    -4   -52  -.05   12   12 |     -52     491      9    180
igr  n/a|    0     0     0   -15   -16    -5  -.08    4    4 |    2996     324     11     75
jpl   80|   -1     0     0     5    18    31   .16    8    8 |  137050     288      8     84
mit  349|    0     0     2    20    -1    20  -.07   12   12 |    -294     410     40    344
ngs  203|   -1     0    -3    -2    20    -3  -.11    9    8 |   -1758    1258   1196   2086
sio  344|   -1     0     3    33   -17   -10  -.18   15   15 |     ---     ---    ---    ---

Table 2.2006.4   GPS week: 2006   Day: 4   MJD: 58290.000                            

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|    0    -1     0    11   -32    -8  -.03    9    9 |    -278    -156      8     92
emr   80|    0    -3    -2   -20     3    40   .18   13   13 |  140021    -265     15    104
esa  150|    1     0    -3    -9   -16    -4  -.06    9    9 |   -3419    1449      9    231
gfz  180|   -1     1     0     0     0    -9   .06   11   10 |     -49    -396     12    119
grg  111|    0     0     1    -1    -9   -30  -.11   14   13 |     103      -6     10    185
igr  n/a|    0     0     0   -17    -7    -6  -.08    4    4 |    3163     181     11     64
jpl   80|    0     0     0    19    31    29   .19    9    9 |  136996     108      7     94
mit  349|    0     0     2   -14     9    -5  -.05   10    9 |     178    -635     67    570
ngs  204|    0     1     2     6     3    -5  -.11   10    9 |    -385     -84    909   2122
sio  339|   -1    -1     1    -7     6   -12  -.14   14   14 |     ---     ---    ---    ---

Table 2.2006.5   GPS week: 2006   Day: 5   MJD: 58291.000                            

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    -1    -2    -5   -20     1  -.04    9    8 |    -540      16      7     87
emr   80|   -1    -2    -1   -18   -18    56   .17   12   12 |  139782    -317     12     96
esa  150|    1     0    -1    18    10    -6  -.09    9    9 |   -3208    1197      9    199
gfz  180|    0     2     1   -60   -15   -17   .06   11   10 |    -641     619     14    119
grg   99|    2     0    -3   -15    34   -35  -.11   14   14 |     -81     376     10    178
igr  n/a|    0     1     0   -13    -1     3  -.01    4    4 |    3291    -400     10     69
jpl   80|    0     1     0     6     0    35   .17    8    8 |  137100    -275      9    118
mit  349|    0     0     0     6    14    -5  -.05   11   10 |     -54     275     36    502
ngs  203|   -2     0     5    15    -1     1  -.10   11    9 |    -594     217   1040   2507
sio  340|    0     0     4    43    -5   -41  -.14   15   15 |     ---     ---    ---    ---

Table 2.2006.6   GPS week: 2006   Day: 6   MJD: 58292.000                            

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     0     0     0     0    -3  -.06    9    9 |    -526    -194      7     96
emr   80|   -2    -3     0     0    -1    50   .17   13   13 |  138696      84     16    106
esa  150|    0     1    -2     0    16     0  -.06    9    9 |   -1220     346      7    209
gfz  180|    0     1     2   -19   -12    -1   .02   10   10 |      19     -86     12    123
grg  110|    3     0   -11    -6    13   -43  -.08   15   13 |     -43     -50     10    183
igr  n/a|    0     0     1   -19     2     7  -.07    4    4 |    2144     145     10     65
jpl   80|    0     0     0     8    21    28   .17    8    8 |  135853     168      9    129
mit  350|    0     0     2    23   -36     8  -.04   10   10 |     161    -171     44    609
ngs  208|   -1     0     3     3   -38    15  -.09   10    9 |    -480    -253    920   2436
sio  342|    0     0     6   -15    46   -70  -.17   14   14 |     ---     ---    ---    ---

       
       
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 3.2006.0   GPS week: 2006   Day: 0   MJD: 58286.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    7    9    9    7   15    4    6    8    8   18    3 |    19   19   21   17   22   18   19   19   19   17    18
   2E |   16   11    9    9   19    5    9   12   12   15    4 |    30   31   29   27   33   27   33   29   27   27    28
   3  |   13   10   10   11    8    5    8    9    9   17    3 |    27   34   26   25   26   26   31   24   29   25    26
  X4  |    2  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    29  ---  ---  ---  ---   26  ---  ---  ---  ---    29
   5  |    8    9   12   11   12    6   10   14   14   19    4 |    50   53   52   40   50   45   54   38   43   43    47
   6E |    8    8   11    9   20    5    5    7    7   18    3 |    21   24   26   19   28   21   23   23   22   20    22
   7E |   10   14    8   12   22    7   11   10   12   17    4 |    50   47   48   51   51   49   45   52   53   53    48
   8  |    9    9    6    7   10    4    5    9    8   13    3 |    26   28   24   25   31   24   26   22   26   33    25
   9  |    7    5    9    7    9    6    7    6    6   10    2 |    38   41   38   40   36   38   42   39   40   41    39
  10  |    8    7   12    9    5    5    7   10    8   11    3 |    16   22   15   19   16   16   21   19   18   18    16
  11E |    6    8   11    7   10    3    6    9    7   17    3 |    30   32   31   31   30   30   28   31   32   36    30
  12  |   11   16    7   14   15    6    9   19   13   20    4 |    32   32   31   38   29   33   31   40   35   41    32
  13  |   12    8    9   11   10    7   10   13   12   21    4 |    23   30   23   32   24   28   30   32   30   35    27
  14  |   13   10   10   12    9    6    7   13   11   22    4 |    33   38   35   38   36   35   37   35   35   34    35
  15  |   11   12    9   13    7    6   10   13   10   22    4 |    42   49   43   35   38   37   46   31   35   44    40
  16  |   16   23    7   14   15    7    8   12   10   21    4 |    30   25   26   37   21   30   25   34   32   36    27
  17  |   15   11    8   14   10    7    7    9   12   15    3 |    27   28   23   27   28   23   26   24   25   25    24
  18E |   17   13   14   14   11    6   12   14   18   19    5 |   109  100   95   98  108   99  106   98   99   98   101
  19  |   12   16    7   13   11    7    6    8   11   15    4 |    29   31   27   25   27   23   27   23   23   24    25
  20  |   12   12   11   15    8    7    9   25   13   15    5 |    21   20   15   24   13   23   19   30   21   21    22
  21E |   16    9   10   14   17    6    8   14   11   18    4 |    29   29   24   28   34   24   28   24   24   24    25
  22  |   14    8   10   12    8    7    7   16   14   20    4 |    31   37   30   41   33   38   35   36   43   38    34
  23  |   10   18   10   12   15    8    6   10   11   20    4 |    32   32   29   37   30   34   32   36   37   40    32
  24  |   11   13    7    7   12    3    7   10    6   21    3 |    21   23   20   22   22   19   21   23   19   24    20
  25  |   10    9    6    9    7    4    7   10   11   15    3 |    29   35   32   33   33   30   35   34   33   37    32
  26  |   15    9    6    7    9    3    5    7    7   12    3 |    57   59   56   57   52   56   56   56   55   50    55
  27  |   19    8    7    8   10    4    7   11    9   10    3 |    29   24   22   20   26   20   23   17   22   25    21
  28  |   17   14    7   15   13    8    8    9   13   20    4 |    24   25   22   28   22   22   24   23   21   25    21
  29  |   10   18    8   13   15    8    9   16   14   15    4 |    29   31   24   23   31   23   29   27   26   24    25
  30E |   28   16    9    7   23    5    8    7    9   14    5 |    38   29   31   28   32   26   28   30   27   30    27
  31E |   18   10    6   13   16    6    8   11   11   17    4 |    55   58   53   56   57   55   55   56   56   55    55
  32  |   13    6   12    7    5    5    5    7    8   17    3 |    25   30   24   26   21   23   28   23   24   30    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   12    9   11   13    6    8   12   11   17      |T   33   35   32   33   33   31   34   33   33   34    32
 WRMS |   12   12    9   10   13    6    8   10   10   18      |NE  30   33   28   31   29   29   31   30   30   32    29
 MEDI |   12   10    9   11   11    6    7   10   11   17      |MD  29   31   27   28   30   26   29   30   29   33    27

Table 3.2006.1   GPS week: 2006   Day: 1   MJD: 58287.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8    9    7    7   10    3    6    9    9   13    3 |    20   20   20   19   21   18   20   18   21   14    18
   2E |   11   11    8   10   15    4   11   13   11   19    4 |    35   32   30   30   34   29   31   31   30   31    30
   3  |    8   10   10   10    7    3    8   11    8   13    3 |    22   32   23   24   25   23   29   23   27   22    24
  X4  |    1  ---  ---  ---  ---   25  ---  ---  ---  ---    0 |    29  ---  ---  ---  ---   21  ---  ---  ---  ---    28
   5  |    7    9   10   12    8    4   13   14   14   20    4 |    36   38   36   30   33   32   41   27   30   34    33
   6E |    7   13    9    8   13    3    7    6    8   13    3 |    23   27   24   21   22   22   26   22   23   23    22
   7E |    6   12    9   10   16    5   11   12   15   15    4 |    37   35   35   40   40   37   37   40   41   38    37
   8  |    8   10    6   10   10    5    8   10    9   14    3 |    20   25   19   19   26   18   22   18   23   25    20
   9  |    6    7    8   10    8    4    8    7    8   11    3 |    38   40   36   37   33   34   40   32   36   36    36
  10  |    8    6   11    7    7    2    8   11    5   13    3 |    13   21   13   15   15   13   20   16   14   17    14
  11E |    9    6   10    6    9    3    6    8    6   16    3 |    20   25   26   25   28   25   23   23   28   29    24
  12  |   10   17    8   12   10    4   10   16   15   17    4 |    27   25   22   27   24   24   23   28   28   28    24
  13  |    9    7   10   14    9    5   12   15   14   21    4 |    20   25   20   30   19   22   29   23   24   33    22
  14  |    9    8    9   12    7    5    7   13   10   22    3 |    28   29   27   28   29   27   30   30   31   31    28
  15  |   11   13    8   12    6    5   11   16   13   19    4 |    30   36   30   30   27   28   34   25   25   34    29
  16  |   11   23    5   15   16    7    6   13   12   23    5 |    22   22   21   27   19   22   22   28   27   28    21
  17  |    9    8    8   14   10    4    8   10   11   14    3 |    21   24   18   26   22   20   24   22   23   21    21
  18E |   18   13   16   13   13    6   17   14   19   18    5 |    99   87   85   85   97   86   92   85   88   87    89
  19  |   10   13    5   12   10    4    8   11   14   15    3 |    20   26   20   24   24   20   23   22   22   23    21
  20  |    9   15   11   15    8    5   13   27   11   17    5 |    22   24   18   21   13   22   25   29   19   24    23
  21E |   13   11    8   18   16    6    9   15   11   17    4 |    25   23   18   23   28   17   21   17   19   18    19
  22  |    9   10   10   12    7    5    8   15   12   16    4 |    29   34   27   37   32   32   31   31   34   34    31
  23  |    9   16    9   14   11    6    7   10   11   18    4 |    31   28   27   34   28   29   30   30   34   34    29
  24  |   13   14    9    6   11    4    8   11    8   12    3 |    21   22   20   20   23   17   21   22   17   20    19
  25  |    7    8    6   11    7    3    8    7   10   13    3 |    25   32   27   31   29   25   29   26   27   30    27
  26  |   12   11    7    9   12    4    7    7    7   10    3 |    76   80   76   75   76   75   79   78   76   75    77
  27  |    7   10    6    8   10    5    8   11    9   12    3 |    19   24   19   20   22   17   19   16   21   21    18
  28  |    8   13    7   15   12    7    9   11   11   18    4 |    16   24   19   25   19   20   22   22   22   24    19
  29  |   11   19    8   12   13    5   11   15   12   13    4 |    24   24   18   23   23   22   22   24   24   20    21
  30E |   12   11   10    6   18    3    8    9   10   13    4 |    27   26   28   26   34   24   28   24   29   24    26
  31E |   12   11    6   11   14    4    8   11   10   13    3 |    55   57   52   52   55   51   51   52   51   53    52
  32  |    6    7   11    8    6    4    7   10    7   19    3 |    20   28   19   24   20   20   25   20   21   30    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12    9   11   11    5    9   12   11   16      |T   29   32   28   30   30   27   31   29   30   31    28
 WRMS |    9   12    9   10   11    5    9   11    9   17      |NE  26   30   25   28   26   25   29   26   27   29    26
 MEDI |    9   11    8   11   10    4    8   11   11   15      |MD  24   26   23   26   26   22   26   24   27   28    24

Table 3.2006.2   GPS week: 2006   Day: 2   MJD: 58288.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    9   10   10    6   16    3    7    9    6   15    3 |    23   24   26   23   28   22   26   24   23   17    23
   2E |    9   11    8    9   12    4   10   12   10   18    3 |    35   37   35   37   38   35   38   35   34   34    35
   3  |    9    8   11   11    7    5    7    8    7   12    3 |    30   33   30   31   29   28   35   28   28   27    29
  X4  |    1  ---  ---  ---  ---   16  ---  ---  ---  ---    0 |    22  ---  ---  ---  ---   22  ---  ---  ---  ---    22
   5  |    8   10   10   10    7    4   11   13   10   19    4 |    37   40   39   34   38   36   43   30   35   35    36
   6E |    8   11   10    8    8    2    6    7    6   13    3 |    23   26   26   23   23   22   25   23   22   24    23
   7  |   11   13    7   11   15    5    9   13   13   14    4 |    41   40   42   42   38   41   38   42   43   39    40
   8  |    8   11    8    9    8    2    7    9    7   14    3 |    24   25   22   24   25   22   26   21   22   24    22
   9  |    8    8   10    7    6    5    8    6    7   14    3 |    39   44   41   41   40   40   45   38   39   41    40
  10  |   10    8   11   10    5    4    8   10    5   12    3 |    22   24   21   21   20   19   24   21   19   24    20
  11E |    6    8   11    7    9    3    6   10    6   16    3 |    26   28   30   27   27   26   28   28   27   30    27
  12  |   11   19    9   13   14    4    9   15   15   19    4 |    26   24   21   27   22   23   24   24   26   23    22
  13  |   10   10   11    9    8    4   10   12   10   24    4 |    22   29   19   26   20   22   29   26   21   33    23
  14  |    9    8   10   13    8    5    7   12   10   20    3 |    21   22   18   22   18   19   19   21   19   27    19
  15  |    7   13    9   10    5    4    8   14   10   23    3 |    36   44   39   35   37   35   41   32   36   41    37
  16  |   10   23    8   11   12    6    8   14   12   23    4 |    24   21   19   24   20   19   19   23   20   26    19
  17  |    8    8    8   16   13    5    7   10    9   14    3 |    22   27   20   28   24   21   27   23   22   22    22
  18E |   14   15   14   13   12    5   14   14   16   16    5 |    93   88   82   84   92   85   91   83   84   83    86
  19  |    9   15    5   14   11    4    8   10   12   15    4 |    23   28   22   23   23   21   24   22   22   21    22
  20  |    9   14   12   15    9    6    9   25   11   17    4 |    22   22   20   25   15   22   21   31   21   24    22
  21E |   10    8    9   11   16    5    7   12   10   15    3 |    31   30   28   28   34   26   30   27   26   22    27
  22  |    9    8   11   11    8    6    7   14   11   15    3 |    37   37   33   41   36   37   39   40   37   37    36
  23  |   11   17   11   11   10    6    6   10   10   16    4 |    35   32   34   38   33   35   35   34   34   33    33
  24  |   10   12    7    7   12    3    8   10    9   16    3 |    24   27   23   23   25   21   22   23   21   23    22
  25  |    6   16    4    6    7    3    7    6    9   11    3 |    33   38   35   33   32   33   36   33   36   35    34
  26  |   10   11    8    6   10    5    6    9    6   15    3 |    59   57   57   55   58   55   59   57   58   65    58
  27  |    7    8    7    7    9    3    8   10    8   11    3 |    25   25   23   22   24   21   25   19   20   25    22
  28  |   10   11    7   12   14    5    7   11   10   20    4 |    22   25   22   24   23   22   26   23   20   25    21
  29  |    8   21    6   10   13    4    9   15   11   17    4 |    24   23   22   24   26   21   23   24   22   23    22
  30E |   12   11   10    6   18    3    9    8    8   13    4 |    34   31   33   29   37   30   31   30   31   27    30
  31E |   16   14    7   13   15    5    6   12   11   14    4 |    62   66   61   63   65   62   64   64   64   60    62
  32  |    6    8   11    9    4    3    7    9    8   16    3 |    17   26   18   23   19   18   25   19   20   25    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    9   10   11    4    8   12   10   16      |T   31   33   31   32   31   30   33   31   30   32    30
 WRMS |    9   13    9   10   10    4    8   11    8   16      |NE  28   30   27   29   27   26   30   27   27   29    27
 MEDI |    9   11    9   10   10    4    8   10   10   15      |MD  25   28   26   27   27   22   28   27   26   27    23

Table 3.2006.3   GPS week: 2006   Day: 3   MJD: 58289.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   10    9   10    8   16    3    7    8    9   11    3 |    22   23   25   20   30   20   22   21   22   17    21
   2E |   11   10    7    9   12    5    9   10    9   15    3 |    26   24   23   22   26   21   24   25   22   21    22
   3  |    7    8   11   11    6    4    6    8    8   12    3 |    21   28   23   22   22   21   28   22   23   22    23
  X4  |    3  ---  ---  ---  ---   18  ---  ---  ---  ---    0 |    28  ---  ---  ---  ---   22  ---  ---  ---  ---    28
   5  |    6    9   10   10    9    4    9   12   10   17    3 |    39   41   40   31   40   35   44   32   33   35    37
   6E |   12    8   11    8   11    3    7    8    9   12    3 |    19   23   24   19   19   21   22   20   21   19    20
   7  |    8   12    7   11   19    5    9   12   10   12    4 |    35   33   34   37   35   35   34   36   37   34    34
   8  |   10   10    7    9   11    3    6    9    7    8    3 |    26   27   26   22   30   22   27   21   24   20    24
   9  |    7    8   10    9    8    5    7    5    6   11    2 |    23   31   26   26   24   22   30   22   24   25    25
  10  |    9    7   12    8    5    3    7   11    6   11    3 |    17   25   18   18   17   18   23   20   18   24    19
  11E |    9    7   10    9   11    4    6   10    5   13    3 |    23   25   25   24   25   24   24   24   27   27    24
  12  |   10   20    7   14   16    5    7   14   12   16    4 |    24   23   19   25   22   20   21   20   22   17    19
  13  |    8    9   10   13   11    3   10   12   11   22    4 |    23   27   20   31   20   25   29   29   25   36    25
  14  |    9    7    9   13    7    4    5   11   10   18    3 |    18   20   17   22   16   17   17   21   18   25    18
  15  |    7   10    8   12   10    5    8   15   11   23    4 |    35   41   36   31   36   31   40   28   32   40    35
  16  |   13   21    7   16   16    6    7   14   12   20    5 |    23   20   18   25   22   20   19   21   24   22    19
  17  |    8    8    9   17   15    5    6    9   10   15    3 |    22   25   18   25   25   19   24   21   22   18    21
  18E |   16   15   12   15   16    5   11   12   15   10    4 |    84   80   72   74   83   74   77   74   72   75    76
  19  |   10   15    6   16   13    5    7   10   11   17    4 |    21   24   19   24   24   18   22   19   19   18    19
  20  |   10   12   13   15   11    6    9   25   12   16    5 |    27   27   23   28   16   27   26   33   25   30    27
  21E |   12   10    9   16   17    4    8   12   10   15    4 |    22   25   19   24   29   20   24   20   22   17    21
  22  |   10    8   11   13    8    5    7   14   12   18    4 |    24   27   24   32   26   27   27   30   27   29    26
  23  |    9   18   10   14   11    6    6    9    8   16    4 |    24   24   25   29   25   24   24   23   24   25    24
  24  |   10   10    7    8   10    4    7   10    7   19    3 |    19   23   20   21   23   17   23   22   20   26    20
  25  |   10   10    4    7   14    4    6    8    5   12    3 |    24   25   23   24   22   21   24   21   22   21    22
  26  |   10    9    7    9   15    4    7   18    6   10    3 |    95   96   94   97   96   94   97   99   97   95    96
  27  |    9    9    7    9   13    3    7   10    7    8    3 |    26   26   25   22   29   22   26   19   22   23    24
  28  |    9   12    7   13   14    6    7   10    9   14    3 |    18   22   18   22   20   19   22   24   22   23    20
  29  |    8   23    6   14   15    5    9   13   14   15    4 |    20   23   17   23   24   19   21   21   21   18    19
  30E |   10   11    9    7   12    4    8    9    7    8    3 |    40   43   42   41   41   41   45   45   41   41    42
  31  |   19    7    7   13   14    4    8   13    9   12    4 |    72   74   73   77   72   72   71   68   74   72    72
  32  |    8    8   10    9    7    4    6    8    6   15    3 |    19   28   19   25   18   19   25   20   19   30    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12    9   12   12    4    8   12    9   15      |T   29   32   29   31   30   28   31   29   29   30    29
 WRMS |    9   12    9   11   12    4    8   12    8   15      |NE  26   29   25   28   27   25   29   26   26   28    26
 MEDI |    9   10    9   11   12    4    7   10    9   15      |MD  23   25   23   25   25   21   24   22   23   25    23

Table 3.2006.4   GPS week: 2006   Day: 4   MJD: 58290.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   11    9   10    7   11    3    7    6    9   11    3 |    21   22   25   22   24   20   22   21   20   15    20
   2E |   11   10    7    9   14    3   11   10   10   13    3 |    23   25   23   22   25   22   25   22   24   20    22
   3  |    9    9   11    6    8    3    7    6    9   16    3 |    24   29   26   26   25   25   31   24   26   25    25
  X4  |    2  ---  ---  ---  ---   21  ---  ---  ---  ---    0 |    24  ---  ---  ---  ---   20  ---  ---  ---  ---    24
   5  |    7   10    9   12   11    4   12   12   11   17    4 |    40   40   36   34   35   34   41   32   32   36    36
   6E |    6    7   10    9   15    3    8    7    9   10    3 |    19   23   25   19   25   21   24   20   23   22    21
   7  |    6   15    9   12   16    5   13   11   12   14    4 |    28   27   29   29   30   28   27   33   32   28    28
   8  |   10   10    8   10   12    4    8    8    8   13    3 |    22   26   22   21   27   19   26   21   21   25    22
   9  |    7   10   11   10    9    6    8    5    7   13    3 |    36   38   38   35   33   36   42   35   37   38    36
  10  |   11    7   12    9    7    3    7    7    6    9    3 |    18   24   17   19   16   16   23   18   18   19    17
  11E |   10   11   11    7   10    3    7   10    5   12    3 |    28   30   30   30   25   27   27   27   27   28    27
  12  |    6   20    7   14   14    6   11   13   12   18    4 |    26   25   23   29   23   25   24   24   28   26    23
  13  |    9   10   10   11    9    5   10   12   11   18    4 |    25   30   23   35   24   26   31   30   29   35    28
  14  |    9    7   10   11    6    3    7   11   10   19    3 |    25   26   24   24   24   23   24   25   24   26    24
  15  |    7   13    8   10   10    4   11   11   12   18    4 |    29   37   29   29   29   28   32   27   31   33    29
  16  |   10   23    8   13   17    5   10   12   12   19    4 |    20   18   17   22   21   18   19   21   22   22    18
  17  |    7    9    9   15   16    4    7    9   11   12    3 |    17   22   15   25   22   19   24   21   22   16    19
 X18E |   18  ---   14   11   15    4   15   10   13   13    5 |    90  ---   77   79   89   80   83   79   78   78    81
  19  |    7   15    7   15   14    5    9   10   12   14    4 |    18   23   18   22   20   17   23   18   20   15    17
 X20  |    9   13   13   16  ---    7   11   22   12   14    5 |    22   24   21   31  ---   21   24   35   24   26    22
  21E |    9   11    8   17   32    4    8   12   13   13    5 |    25   27   23   27   41   22   26   22   26   18    23
  22  |   13    9   12   10    7    5    8   13   13   17    4 |    28   31   24   34   32   30   33   34   33   32    29
  23  |   10   19   11   12   12    6    8   10    9   16    4 |    29   26   30   33   28   31   29   31   31   30    29
  24  |   11   11    8    6   10    2    8    9    9   13    3 |    19   23   20   17   20   17   21   20   20   17    18
  25  |    8   11    5    8   13    4    8    7    7   14    3 |    32   32   29   31   28   29   29   30   32   30    29
  26  |   11   11    9    8   14    4    7    7    8    9    3 |    48   49   45   48   48   47   47   47   49   44    47
  27  |   10    8    8    8   13    4    9    9    9   11    3 |    24   25   24   22   27   20   26   20   23   27    23
  28  |    9   14    6   11   12    5    9   10    8   15    3 |    17   23   17   20   20   16   21   20   18   17    17
  29  |   11   21    6   15   14    6   12   14   11   16    4 |    23   22   16   22   22   18   22   21   22   21    19
  30  |    8   16   11    6   24    5   10    8    8    9    4 |    30   30   32   30   34   30   33   31   32   28    30
  31  |   12   10    6   12   20    3    7   11   10   13    4 |    53   57   53   57   56   54   56   54   55   53    54
  32  |    6    7    9    7    4    3    7    8    7   15    2 |    16   24   14   17   17   15   25   16   17   23    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    9   11   14    4    9   10   10   14      |T   28   28   27   29   29   26   30   28   28   28    27
 WRMS |    9   13    9   10   13    4    9    9    9   14      |NE  25   28   24   27   25   23   28   25   26   26    24
 MEDI |    9   10    9   10   12    4    8   10   10   14      |MD  24   26   24   27   25   22   26   24   26   26    23

Table 3.2006.5   GPS week: 2006   Day: 5   MJD: 58291.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8    9    9    8   10    4    5    9   10   13    3 |    20   22   24   20   23   21   23   23   23   19    20
   2E |   13    9    9   11   13    5   10   13   11   14    4 |    25   21   22   17   23   19   22   24   22   20    20
   3  |    7    8   11    7    8    4    6    9    8   12    3 |    18   26   19   20   18   19   26   20   21   22    20
  X4  |    2  ---  ---  ---  ---   14  ---  ---  ---  ---    0 |    22  ---  ---  ---  ---   21  ---  ---  ---  ---    22
   5  |    5   10   10   13   14    4   13   10   14   15    4 |    32   36   32   26   31   30   36   30   29   34    31
   6E |    8   10   11   10   17    4    6   10    9   11    3 |    16   20   23   19   17   18   21   20   19   18    18
   7  |    9   12    7   12   20    4   10   10   13   13    4 |    24   24   24   26   25   23   24   28   30   24    24
   8  |    9    9    6    9   10    3    7    7    7   12    3 |    18   24   19   17   23   19   23   19   23   22    19
   9  |    6   10   12   10    8    5    7    6    8   16    3 |    22   35   25   25   23   24   33   26   27   35    26
  10  |    6    8   13    7    9    3    8   10    7   11    3 |    15   22   17   14   15   16   21   16   18   21    16
  11E |    7    6    8    8   12    4    6   11    7   15    3 |    24   26   27   28   26   25   26   27   31   28    26
  12  |    5   20    7   11   17    5    9   13   11   16    4 |    23   22   18   28   19   21   20   24   26   23    21
  13  |   10    8    9   13   11    3    9   13   14   20    4 |    25   31   25   34   25   28   31   31   35   38    28
  14  |    7    7    9   10   11    3    7   12   10   18    3 |    26   29   26   26   26   25   26   27   31   29    26
  15  |    6   11    9   11   12    3   11   14   10   22    4 |    29   31   27   27   30   27   31   23   29   30    27
  16  |   11   21   10   10   17    4    9   14   12   18    4 |    28   25   24   30   23   27   28   30   32   28    25
  17  |    6    7   10   14   17    2    7   10   10   14    3 |    18   23   16   23   21   18   22   23   22   14    18
  18E |   13   15   11   13   12    4   13   12   18   15    4 |    95   95   83   85   92   87   90   83   87   87    87
  19  |    9   13    7   16   14    4    7   10   12   19    4 |    19   22   19   19   22   18   21   19   21   15    18
 X20  |    2  ---  ---  ---  ---   86  ---  ---  ---  ---    0 |    20  ---  ---  ---  ---   12  ---  ---  ---  ---    20
  21E |   11    7    8   13   19    3   10   13   11   15    4 |    21   22   19   20   31   18   22   18   23   13    19
  22  |   11    9   11   11    9    3    7   16   13   16    4 |    17   22   16   24   19   18   22   23   26   24    19
  23  |    8   17    9   11   11    4    7    9   10   15    3 |    16   17   18   22   16   16   17   20   22   24    17
  24  |    7   10   11    5   12    3    9   11    9   18    3 |    18   21   18   17   20   17   19   21   18   23    17
  25  |    7   12    7    6   13    4    7    7   13   11    3 |    21   23   25   24   22   20   24   22   25   24    22
  26  |   13   10    9    9   17    2    7    9    6    9    3 |    82   80   81   79   81   81   81   80   80   81    80
  27  |    9   10    6    9   11    3    8    9    7   11    3 |    22   27   23   22   24   22   24   22   25   24    22
  28  |    9   15    8   15   16    3   10   10   12   11    4 |    13   20   15   17   19   16   21   20   23   16    15
  29  |    9   22    6   13   16    4   10   13   11   12    4 |    22   21   18   24   22   20   21   22   22   20    19
  30  |   10   13    9    7   17    3    7    6    7    7    3 |    21   21   25   22   24   21   24   23   24   20    21
  31  |    9   10    7   13   24    4    8   11   11   12    4 |    43   44   42   42   47   42   43   42   43   40    42
  32  |    6    8    9    8   10    4    7    9    8   15    3 |    16   25   18   21   14   19   25   18   23   28    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    9   11   14    4    8   11   11   15      |T   25   29   26   27   27   25   28   27   29   28    25
 WRMS |    8   12    9   10   14    4    8   10    9   15      |NE  23   27   23   25   24   23   27   25   27   27    23
 MEDI |    8   10    9   10   12    4    7   10   10   14      |MD  21   23   23   23   23   20   24   23   24   24    20

Table 3.2006.6   GPS week: 2006   Day: 6   MJD: 58292.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8    9   10    7   12    3    8    7   10   10    3 |    24   24   27   21   25   21   26   23   23   21    23
   2E |   10   10    8   10   10    5   11   10   10   11    3 |    28   26   25   27   31   25   27   26   24   27    25
   3  |   11    8   12   10    9    4    8    9   10   11    3 |    23   30   25   24   23   23   30   22   22   27    24
  X4  |    1  ---  ---  ---  ---   19  ---  ---  ---  ---    0 |    26  ---  ---  ---  ---   20  ---  ---  ---  ---    26
   5  |    9    8   11   10   13    4   11   13   10   20    4 |    49   48   50   40   48   43   52   37   43   39    45
   6E |   10   16   10    9   12    4    7    7   10   11    3 |    23   26   28   24   27   24   26   25   22   26    24
   7  |   14   16    7   13   20    6    9   14   14   14    4 |    25   25   26   30   29   26   26   31   29   25    25
   8  |   10    9    6    8   12    2    8    7    7   10    3 |    24   25   23   21   24   20   25   20   22   20    21
   9  |    7    9   10    7    9    4    9    5    6   10    2 |    31   38   34   34   30   32   39   34   33   34    34
  10  |    6    9   11    9   10    3    7    8    9   11    3 |    16   24   17   16   20   16   23   18   19   21    17
  11E |    7    7   10    8   15    3    6    7    7   14    3 |    29   33   34   31   29   30   33   33   30   36    31
  12  |    8   20    7   12   15    5    9   15   10   13    4 |    30   26   27   34   29   29   24   31   31   29    27
  13  |    7    9   10   12   15    4    9   13   10   21    4 |    30   33   26   39   27   33   35   34   35   42    32
  14  |    9    7    9   12   12    4    6   10   10   16    3 |    30   33   30   33   31   31   30   31   35   31    30
  15  |    7   13   10   10   13    4   10   13   10   22    4 |    37   44   41   34   43   34   41   30   34   41    37
  16  |   10   19    7   14   16    5   11   12   12   20    4 |    30   26   27   37   26   30   29   35   32   33    28
  17  |    5   11    9   12   15    4    6   10    8   11    3 |    20   25   18   24   26   19   25   25   22   19    21
  18E |   12   17   12   12   13    4   12    9   13   18    4 |   109  105   96  100  108   99  104   97   98  103   101
  19  |    7   17    8   14   13    5    8   11   11   15    4 |    22   27   22   21   26   21   24   22   22   21    21
 X20  |    9   15    8   16   14    6   10   24  ---   15    5 |    13   14    8    8    9   12   12   22  ---   15    12
  21E |   14    8    7   14   36    4    7   11   14   13    5 |    28   27   23   25   38   22   26   22   22   17    23
  22  |   12   10   12   11   10    5    9   14   12   16    4 |    27   30   23   32   28   28   30   31   33   29    28
  23  |    9   19   10   12   11    4    6   10    9   14    3 |    22   22   23   31   21   24   23   28   26   28    23
  24  |    6   11    8    5   15    5    8   10    8   11    3 |    19   21   20   20   24   19   20   23   17   21    19
  25  |    6   11    7    9   11    4    7    9    9   17    3 |    29   28   30   28   31   28   30   30   27   37    29
  26  |    9    7    7   11   13    3    6    9    8   10    3 |    75   75   76   74   79   74   78   78   74   77    76
  27  |   10    9    7    8   12    2    7    8    7   10    3 |    25   25   22   22   25   21   24   20   21   23    22
  28  |    9   20    8   11   16    4    7   13    8   13    4 |    20   24   19   21   23   18   22   24   21   22    19
  29  |    8   21    7   12   12    5   10   12   12   13    4 |    26   29   24   24   28   23   26   26   24   25    24
  30  |   13   15   10    5   19    4    8   10    7    9    3 |    26   28   30   27   31   26   30   31   29   27    27
  31  |   12    9    8   13   19    5    6   11   11   15    4 |    51   54   51   53   55   52   54   56   54   53    53
  32  |    7    7   10    9   10    4    7    9    9   14    3 |    22   28   19   22   19   21   29   23   24   28    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    9   10   15    4    8   10   10   14      |T   30   33   30   31   32   29   33   31   31   32    30
 WRMS |    9   13    9   10   13    4    8   10    9   14      |NE  28   30   27   29   29   26   30   29   29   30    27
 MEDI |    9   10    9   11   13    4    8   10   10   13      |MD  26   27   26   27   28   24   27   28   26   27    25



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 4.2006   GPS week: 2006   MJD: 58286.0-58292.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3057 |U   10     9    20 |U    9    15    25 |U   12    14    33 |
emr | emr 2945 |U   17    16    39 |U   13    15    42 |    13    16    40 |
esa | esa 2962 |    12    10    25 |U    8    13    28 |    12    15    31 |
gfz | gfz 2958 |U   10     8    20 |U    9    14    29 |U   12    16    32 |
grg | grg 2948 |U   11    11    24 |U   12    22    38 |    14    23    45 |
igr | igr 2946 |     9     8    20 |     8    13    24 |    11    15    30 |
igs | igs 2957 |    10     8    21 |     8    13    26 |    11    14    31 |
jpl | jpl 2962 |U   13    13    32 |U   10    14    34 |U   12    16    37 |
mit | mit 2962 |U   12    11    27 |U   12    17    38 |U   15    19    44 |



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 5.2006.0   GPS week: 2006   Day: 0   MJD: 58286.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10     7    19 |     9    16    22 |    10    13    33 |
emr | emr 2972 |    20    19    28 |    11    17    49 |    12    17    38 |
esa | esa 2976 |    11     8    22 |     7    15    36 |    10    12    37 |
gfz | gfz 2972 |     9     6    19 |    12    19    44 |    10    13    32 |
grg | grg 2976 |    12    10    23 |    14    25    42 |    19    24    69 |
igr | igr 2958 |     9     6    17 |     8    14    26 |    10    13    31 |
igs | igs 2976 |    10     7    19 |     9    15    28 |    10    13    32 |
jpl | jpl 2976 |    13    13    30 |  ----  ----  ---- |    11    16    38 |
mit | mit 2976 |    14    11    34 |    16    21    61 |    15    14    41 |

Table 5.2006.1   GPS week: 2006   Day: 1   MJD: 58287.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     7    17 |     9    18    24 |    13    15    38 |
emr | emr 2972 |    17    15    30 |    13    14    37 |    15    14    45 |
esa | esa 2976 |    12    11    20 |     8    16    24 |    14    14    34 |
gfz | gfz 2972 |     9     7    16 |     8    15    28 |    13    17    36 |
grg | grg 2976 |    10     9    22 |    14    26    36 |    16    30    67 |
igr | igr 2974 |     9     8    17 |     9    17    25 |    13    15    35 |
igs | igs 2975 |    10     7    18 |     9    16    24 |    12    14    36 |
jpl | jpl 2976 |    15    12    29 |    12    22    32 |    12    12    44 |
mit | mit 2976 |    12     8    25 |     9    15    33 |    15    20    40 |

Table 5.2006.2   GPS week: 2006   Day: 2   MJD: 58288.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10     9    22 |     9    12    20 |    12    14    23 |
emr | emr 2972 |    16    16    39 |    11    13    28 |    15    21    32 |
esa | esa 2976 |    13    11    29 |     8     9    24 |    11    14    22 |
gfz | gfz 2971 |    10     8    22 |     7     8    23 |    11    14    21 |
grg | grg 2976 |    11    10    24 |    10    14    27 |    13    18    21 |
igr | igr 2975 |    11     9    24 |     8     9    19 |    11    13    19 |
igs | igs 2976 |    11     8    26 |     8     8    20 |    11    14    22 |
jpl | jpl 2976 |    14    13    36 |    10    10    31 |    11    15    34 |
mit | mit 2976 |    12    13    32 |    14    18    43 |    15    18    36 |

Table 5.2006.3   GPS week: 2006   Day: 3   MJD: 58289.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    10    11    20 |     9    13    28 |    13    14    42 |
emr | emr 2972 |    16    19    27 |    14    13    39 |    14    19    50 |
esa | esa 2976 |    11    11    22 |     8    11    29 |    13    17    39 |
gfz | gfz 2972 |    10    10    19 |     8    13    30 |    13    19    42 |
grg | grg 2976 |    10    13    23 |    10    16    29 |    15    21    41 |
igr | igr 2924 |     9    10    19 |     9    13    26 |    13    16    40 |
igs | igs 2962 |    10    10    18 |     8    11    28 |    12    17    40 |
jpl | jpl 2976 |    13    13    24 |    10    11    35 |    13    19    40 |
mit | mit 2976 |    10    11    24 |     8    11    34 |    16    19    44 |

Table 5.2006.4   GPS week: 2006   Day: 4   MJD: 58290.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    11    10    22 |     7    17    23 |    12    13    37 |
emr | emr 2880 |    17    14    64 |    14    16    51 |    12    15    43 |
esa | esa 2976 |    13    11    29 |     6    15    25 |    12    16    33 |
gfz | gfz 2973 |    11    10    23 |     7    15    23 |    13    15    35 |
grg | grg 2877 |    11    11    23 |    15    29    56 |    13    19    42 |
igr | igr 2975 |    10     9    24 |     7    14    21 |    12    15    34 |
igs | igs 2975 |    11     9    25 |     7    13    24 |    12    15    35 |
jpl | jpl 2976 |    14    14    37 |     8    11    32 |    14    20    42 |
mit | mit 2976 |    12    12    25 |    16    28    33 |    19    30    72 |

Table 5.2006.5   GPS week: 2006   Day: 5   MJD: 58291.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |    10     9    22 |     9    14    31 |    11    16    32 |
emr | emr 2876 |    15    14    51 |    16    13    38 |    14    16    38 |
esa | esa 2880 |    10    10    25 |     9    13    31 |    11    17    26 |
gfz | gfz 2876 |     9     9    21 |    10    14    32 |    13    19    31 |
grg | grg 2880 |    14    15    33 |    11    19    37 |    11    33    53 |
igr | igr 2853 |     9     8    22 |    10    14    28 |    12    16    28 |
igs | igs 2868 |     8     8    21 |     9    13    30 |    11    16    28 |
jpl | jpl 2880 |    10    12    31 |    12    16    41 |    13    15    31 |
mit | mit 2880 |    10     9    20 |     9    13    31 |    14    18    36 |

Table 5.2006.6   GPS week: 2006   Day: 6   MJD: 58292.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    11     8    19 |     8    14    25 |    12    13    29 |
emr | emr 2972 |    19    14    32 |    15    19    50 |    13    13    34 |
esa | esa 2976 |    12    10    26 |     7    14    29 |    10    15    26 |
gfz | gfz 2972 |    10     8    21 |     8    14    25 |    12    16    29 |
grg | grg 2975 |    10    10    22 |    12    27    43 |    11    14    26 |
igr | igr 2964 |    11     8    21 |     8    13    25 |    11    13    27 |
igs | igs 2971 |    11     8    22 |     7    14    27 |    11    13    27 |
jpl | jpl 2976 |    14    14    34 |     9    16    32 |    11    14    34 |
mit | mit 2976 |    11    11    27 |    10    15    32 |    12    17    36 |


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 6.2006   GPS week: 2006   MJD: 58286.500-58292.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       7      -8      31      13      3 |       9     19
            |      16      15      71     109      5 |       2
emr   uuuuu |      31      -4     169     199      8 |      38     42
            |      10      15      58      66     13 |       3
esa   uuuuu |       6       8     -82      68      2 |       7     18
            |      16      16      59      60      6 |       2
gfz   uuuuu |      15      22      -7      37     -2 |      15     23
            |      14      17      63      87      4 |       2
grg   uuuuu |     -17      -5      90    -180     -6 |       6     17
            |      20      12      34      96      5 |       3
igr   xxxxx |      -7       6      59     -50     -2 |       0     16
            |       8      12      43      22      2 |       2
irf   xxxxx |       1      -7     -38     -37      0 |      -1     15
            |       7      10      32      15      2 |       1
jpl   uuuuu |      -9     -19     103      28      5 |      20     24
            |      16      10      39      47      4 |       2
mit   uuuuu |     -10       6     -94     -85     -2 |      17     23
            |      11       9      71      27      3 |       1
ngs   uuuuu |     -25      -7     -76    -112     -2 |      15     22
            |      32      22     104      86      4 |       2
sio   uuuux |      19      25    -197      51      2 |      68     70
            |      18      18      68      61      6 |       1


Table 7.2006.0   GPS week: 2006   Day: 0   MJD: 58286.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      20     -36      42     236     -3 |       9     22
emr   uuuuu |      48       1     107     234     15 |      33     39
esa   uuuuu |      -3      23    -129      15     -7 |       9     23
gfz   uuuuu |      20      25      70     -11      1 |      15     27
grg   uuuuu |     -33     -16      76    -314      1 |       7     21
igr   xxxxx |      -8      -6      46     -74     -4 |       0     21
irf   xxxxx |      -2      -6      14     -37     -1 |       0     20
jpl   uuuuu |      13     -14      81      36      9 |      16     24
mit   uuuuu |      -3       3      43     -49     -1 |      17     26
ngs   uuuuu |     -70     -23    -172    -132     -5 |      14     25
sio   uuuux |      24      57    -177      -2      9 |      67     70

Table 7.2006.1   GPS week: 2006   Day: 1   MJD: 58287.500

                                                         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 |      18      -4      69       7     -2 |       8     22
emr   uuuuu |      40     -12      77     330     32 |      35     40
esa   uuuuu |       2      26    -178      66     -4 |       8     23
gfz   uuuuu |     -11      15      -4     -16     -4 |      15     27
grg   uuuuu |     -38      -6     134    -292     -2 |       7     21
igr   xxxxx |     -21      17      68     -23     -3 |      -1     21
irf   xxxxx |      -8       2     -35     -55     -2 |      -1     20
jpl   uuuuu |      12     -23      45     -27      8 |      17     25
mit   uuuuu |     -22       5     -97    -107     -3 |      16     26
ngs   uuuuu |     -31     -12      96     -16     -4 |      14     25
sio   uuuux |      52      19    -198     108      4 |      68     70

Table 7.2006.2   GPS week: 2006   Day: 2   MJD: 58288.500

                                                         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       6     -65     -13     12 |      11     20
emr   uuuuu |      25       4     200     178      9 |      40     45
esa   uuuuu |      29      -1      -7      68      4 |      10     22
gfz   uuuuu |      29      11     -79     -73     -9 |      19     25
grg   uuuuu |     -23     -22      48    -179     -6 |      10     18
igr   xxxxx |       1     -11     117     -61     -3 |       3     16
irf   xxxxx |       9       5     -77     -20     -3 |       2     17
jpl   uuuuu |     -11      -2     109      95      0 |      21     24
mit   uuuuu |     -12      21    -152     -50     -3 |      19     25
ngs   uuuuu |     -35     -27      23     -31     -4 |      18     24
sio   uuuux |      13      43    -190       1      4 |      71     72

Table 7.2006.3   GPS week: 2006   Day: 3   MJD: 58289.500

                                                         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     -17     -38     -24      2 |      10     17
emr   uuuuu |      36       9     237     179      7 |      39     43
esa   uuuuu |       9      12     -89      60      4 |       7     15
gfz   uuuuu |      12      38    -102      47     -5 |      16     20
grg   uuuuu |      -4     -12     130    -126     -6 |       8     13
igr   xxxxx |       3       7      71     -44     -4 |       1     13
irf   xxxxx |      12     -16     -35     -40      2 |      -1     12
jpl   uuuuu |     -11     -15     131      82      7 |      20     24
mit   uuuuu |      -8      14     -81    -109      1 |      18     22
ngs   uuuuu |     -32     -24     -59    -137      2 |      16     21
sio   uuuux |      10      22    -213      -4      7 |      69     70

Table 7.2006.4   GPS week: 2006   Day: 4   MJD: 58290.500

                                                         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     -10      17     -36      6 |       8     17
emr   uuuuu |      19      12     201     143      7 |      38     42
esa   uuuuu |      24      12     -86     188      6 |       5     15
gfz   uuuuu |      16       4      -6     160      1 |      14     20
grg   uuuuu |      -2       5     107    -132    -11 |       5     14
igr   xxxxx |      -5       7      40     -47      2 |      -1     14
irf   xxxxx |       4     -24     -26     -37      4 |      -2     13
jpl   uuuuu |     -29     -23     144     -15      8 |      20     24
mit   uuuuu |     -24      -5     -79     -89      1 |      17     21
ngs   uuuuu |     -36       1    -112    -277     -5 |      15     21
sio   uuuux |      31      22    -175     126      3 |      69     70

Table 7.2006.5   GPS week: 2006   Day: 5   MJD: 58291.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       0       5     150      34     -1 |       8     17
emr   uuuuu |      28     -11     202     142     -4 |      39     42
esa   uuuuu |      -2     -23     -29       2      6 |       4     15
gfz   uuuuu |      30      52      38     147      0 |      14     20
grg   uuuuu |     -32       8      65    -175     -6 |       4     15
igr   xxxxx |      -6       8      90     -21     -4 |      -2     15
irf   xxxxx |       1      -9     -78     -52      2 |      -2     13
jpl   uuuuu |     -14     -23      69      -1      3 |      21     24
mit   uuuuu |      -9       3    -180    -113     -4 |      17     21
ngs   uuuuu |      -4      -3    -119     -93      3 |      14     20
sio   uuuux |       9       4    -325      18     -5 |      68     69

Table 7.2006.6   GPS week: 2006   Day: 6   MJD: 58292.500

                                                         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       1      42    -115      5 |       6     16
emr   uuuuu |      25     -31     158     185     -8 |      38     42
esa   uuuuu |     -18       9     -57      76      8 |       4     14
gfz   uuuuu |       8      10      38       6      2 |      13     19
grg   uuuuu |      16       4      70     -41    -11 |       2     15
igr   xxxxx |     -10      22     -17     -77      1 |      -4     15
irf   xxxxx |      -5       1     -28     -16      0 |      -2     13
jpl   uuuuu |     -22     -35     144      26      0 |      22     24
mit   uuuuu |      10       0    -111     -80     -6 |      15     20
ngs   uuuuu |      34      37    -187     -97      1 |      13     19
sio   uuuux |      -2      10     -97     113     -6 |      67     68


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