[IGSREPORT-26177] Wk 2007 IGS Final Orbits

acc acc at igs.org
Sun Oct 14 10:18:17 PDT 2018


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2007   (Jun 24, 2018 - Jun 30, 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:

igs2007[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2007[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2007[0-6].cls  IGS GPS clock combination summary report.
igs20077.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20077.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   | MAL2 TIXI ABMF KRGG MAL2 NAUR TIXI
                0  |  EMR   | YELL
                0  |  ESA   | 18 22 18 FAA1 REUN FAA1 REUN
                0  |  GFZ   | 18 18 BJNM GODE KOUR REUN GODE KOUR REUN
                0  |  GRG   | 18 18 KIT3 KRGG SEYG FAA1 KIT3 MAW1 SEYG TLSE TONG
                0  |  JPL   | 18 LAUT
                0  |  MIT   | ALBH ALGO BAKE CEDU CHUR FLIN GRAZ HARB HLFX HOB2
                0  |  MIT   | KAT1 STR1 WAB2 WHIT ALBH ALGO BAKE CEDU CHUR FLIN
                0  |  MIT   | GRAZ HARB HLFX HOB2 KAT1 STR1 WAB2 WHIT
                1  |  COD   | TASH TIXI FAA1 NAUR SEYG TASH
                1  |  EMR   | BJNM
                1  |  ESA   | 18 BRST DAV1 BRST DAV1 TLSE YAKT
                1  |  GFZ   | 18 18 BJNM GODE KERG REUN GODE KERG REUN TLSE
                1  |  GRG   | 18 21 FAA1 PDEL SEYG WIND FAA1 PDEL SEYG TONG WIND
                1  |  JPL   | 18 LAUT
                1  |  MIT   | ALBH BAKE CEDU CHPI CHUR FLIN GRAZ HARB IISC KAT1
                1  |  MIT   | SCH2 SUTH VILL WAB2 ALBH BAKE CEDU CHPI CHUR FLIN
                1  |  MIT   | GRAZ HARB IISC KAT1 SCH2 SUTH VILL WAB2
                2  |  COD   | NAUR TLSE
                2  |  ESA   | 18 18 FAA1 MAL2 FAA1 MAL2
                2  |  GFZ   | 18 21 18 21 BJNM GODE PIE1 REUN BJNM GODE PIE1 REUN
                2  |  GFZ   | TLSE
                2  |  GRG   | 18 18 CCJ2 FAA1 QIKI RABT TASH TONG WIND CCJ2 FAA1
                2  |  GRG   | MANA RABT TASH TONG WIND
                2  |  JPL   | CCJ2 CCJ2 CHUR MAL2 QIKI
                2  |  MIT   | BAKE CHPI CHUR DUBO FLIN HLFX SCH2 STR1 SUTH VILL
                2  |  MIT   | WHIT BAKE CHPI CHUR DUBO FLIN HLFX SCH2 STR1 SUTH
                2  |  MIT   | VILL WHIT
                3  |  COD   | BJNM TIXI WIND BJNM COCO MAL2 TIXI WIND
                3  |  ESA   | 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                3  |  ESA   | 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 5 6 7 8
                3  |  ESA   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                3  |  ESA   | 26 27 28 29 30 31 32
                3  |  GFZ   | 18 18 BJNM FAA1 GODE MAL2 PIE1 REUN BJNM FAA1 GODE
                3  |  GFZ   | MAL2 PIE1 REUN YAKT
                3  |  GRG   | 18 18 COCO TLSE TLSE
                3  |  MIT   | BAKE CHPI CHUR FLIN GRAZ HLFX IISC SCH2 SUTH WHIT
                3  |  MIT   | BAKE CHPI CHUR FLIN GRAZ GUAM HLFX IISC MAL2 SCH2
                3  |  MIT   | SUTH WHIT ZAMB
                4  |  COD   | MAL2 TIXI YAKT FAA1 TIXI TRO1 YAKT
                4  |  EMR   | YELL
                4  |  ESA   | 19 20 21 22 18 21 MAL2 BRST
                4  |  GFZ   | 18 8 18 GODE KOUR MAL2 REUN GODE KOUR REUN
                4  |  GRG   | 10 21 10 18 21 BRST KIT3 KRGG OHI3 TRO1 BRST KIT3
                4  |  GRG   | KRGG OHI3 TONG TRO1 WIND
                4  |  JPL   | LAUT MAG0 WIND
                4  |  MIT   | BAKE CHPI CHUR DARW DRAO IISC MAL2 NRC1 SCH2 SUTH
                4  |  MIT   | WHIT BAKE CHPI CHUR DARW DRAO IISC NRC1 SCH2 SUTH
                4  |  MIT   | WHIT
                5  |  COD   | MATE TIXI WIND MATE NAUR TIXI
                5  |  EMR   | 18
                5  |  ESA   | BRST MAL2 BRST MAL2
                5  |  GFZ   | 18 8 18 BJNM GODE GODE ZAMB
                5  |  GRG   | KIT3 MAL2 KIT3 MAL2 TONG
                5  |  JPL   | 18 LAUT ZAMB
                5  |  MIT   | ALBH BAKE CHUR FLIN GRAZ HARB HOB2 SCH2 WAB2 ALBH
                5  |  MIT   | BAKE CHUR FLIN GRAZ HARB HOB2 SCH2 WAB2
                6  |  COD   | KRGG MAL2 TIXI KRGG NAUR TIXI
                6  |  ESA   | MAL2 WIND WIND
                6  |  GFZ   | 18 18 GODE KOUR MAL2 REUN GODE KOUR REUN
                6  |  GRG   | 21 18 21 FAA1 RIO2 RIO2 TONG
                6  |  JPL   | LAUT
                6  |  MIT   | BAKE BRST CHUR DRAO FLIN HARB HLFX HOB2 KIRU MAL2
                6  |  MIT   | NAUR NNOR NRC1 OHI2 SCH2 TWTF VILL WAB2 YELL BAKE
                6  |  MIT   | BRST CHUR DRAO FLIN HARB HLFX HOB2 KIRU NAUR NNOR
                6  |  MIT   | NRC1 OHI2 SCH2 TWTF VILL WAB2 YELL

 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 G25 |  4 |  4 |  4 |  4 |  4 |  4 |  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 |     .0     .4    1.5      13     11    -10    -.62
       EMR  |   0 |   -3.0   -1.3   -6.8       2      1     52     .03
       ESA  |   0 |     .4     .3     .9       1    -23     21    -.41
       GFZ  |   0 |     .4     .2     .8      -2    -32     11    -.41
       GRG  |   0 |    1.6   -1.6   -7.5      60    -27     31    -.41
       JPL  |   0 |   -1.2   -7.0   -4.7      -2      2      0    -.51
       MIT  |   0 |    1.1   -6.4    5.5     -22     30      6    -.11
       NGS  |   0 |   -5.4   -4.9    1.7      21    -61    -73    -.40
       SIO  |   0 |   -1.4   -1.5    7.6       0     -9      6    -.01

       COD  |   1 |    -.3     .6    1.2      24     17      0    -.42
       EMR  |   1 |   -3.2    1.4   -8.1       3     -6     39    -.05
       ESA  |   1 |     .2     .1    1.6       7     -6     11    -.52
       GFZ  |   1 |    -.1     .2     .5      -8    -22      1    -.28
       GRG  |   1 |    2.0   -2.0   -8.4      49    -24     25    -.45
       JPL  |   1 |    -.8    1.1     .2       5     -5     -3    -.47
       MIT  |   1 |   -1.4   -6.9    7.1     -10     40     21    -.11
       NGS  |   1 |   -2.8   -1.6    -.2      36    -14    -50    -.24
       SIO  |   1 |    -.5    4.4    4.4      -1      9    -12    -.15

       COD  |   2 |     .0     .3     .5      20     10     -3    -.32
       EMR  |   2 |    3.7    -.8   -2.9      -7    -18     43     .17
       ESA  |   2 |     .5    -.5    -.3      14    -25     23    -.28
       GFZ  |   2 |     .3     .4     .6       0    -18     -6    -.39
       GRG  |   2 |    -.6    1.7   -8.9      58    -18     22    -.25
       JPL  |   2 |     .5   -2.2   -2.2       4     -6     11    -.18
       MIT  |   2 |    1.7   -1.0    4.9     -13     53     21     .05
       NGS  |   2 |    -.7   -3.1    1.9      15    -25    -58    -.26
       SIO  |   2 |   -1.6    4.6    4.6       5      6     -4    -.06

       COD  |   3 |    -.1     .5     .2      17     11     -3    -.28
       EMR  |   3 |   -2.2    1.9   -3.7      10    -14     36    -.03
       ESA  |   3 |    -.8    -.8    -.3      10    -17     32    -.30
       GFZ  |   3 |     .2     .2     .3       3    -19      1    -.26
       GRG  |   3 |    1.6    -.3   -3.9      52    -16     36    -.25
       JPL  |   3 |    2.9    1.9   -7.8       4     -3      6    -.19
       MIT  |   3 |    -.8   -3.6    3.0      -3     26      4     .06
       NGS  |   3 |    -.3    3.6   -5.9      47    -19     -7    -.18
       SIO  |   3 |    -.7     .9    8.6      -1     -3      2    -.06

       COD  |   4 |     .3     .4     .8      12      0      5    -.43
       EMR  |   4 |     .5     .0     .5      -2     13     57    -.15
       ESA  |   4 |     .1    -.9    -.8      16    -32     12    -.40
       GFZ  |   4 |     .3     .9     .2      13    -21    -15    -.28
       GRG  |   4 |    2.3   -1.3    3.2      50    -26     52    -.32
       JPL  |   4 |    6.1   -8.5   -2.5       4     -2    -13    -.44
       MIT  |   4 |    3.9   -3.3    7.8     -11     41     23    -.24
       NGS  |   4 |    3.0   -1.3    3.3      -5    -61    -14    -.36
       SIO  |   4 |    -.0    -.2   10.9     -32    -16     11    -.18

       COD  |   5 |    -.3     .4    1.0      19     24      2    -.48
       EMR  |   5 |    -.5     .8   -2.6      -9      6     36    -.12
       ESA  |   5 |    -.2    -.4   -1.0      -1    -30     13    -.52
       GFZ  |   5 |     .3     .5     .1       3    -30     -5    -.36
       GRG  |   5 |    2.9    2.1   -4.5      22    -12     52    -.19
       JPL  |   5 |    7.5    -.7   -6.0       5     -8      2    -.41
       MIT  |   5 |    -.6   -7.1    5.3     -16     24      5    -.27
       NGS  |   5 |   -5.2   -1.4     .4      20    -17    -57    -.27
       SIO  |   5 |   -2.2    -.7    5.3     -17     -9      5    -.0 

       COD  |   6 |     .3     .2     .9       5     11     -3    -.43
       EMR  |   6 |   -2.8   -1.4   -5.0     -11     13     60     .03
       ESA  |   6 |     .0    -.6   -1.0      -3    -32     14    -.38
       GFZ  |   6 |     .1     .1     .2      -8    -35     16    -.34
       GRG  |   6 |    1.2   -1.4   -1.0      61    -19     56    -.10
       JPL  |   6 |    -.7     .4   -6.9     -12      4     15    -.39
       MIT  |   6 |   -2.8   -1.3    2.9     -18     36      1    -.25
       NGS  |   6 |   -2.9   -1.4    -.2      17    -39    -40    -.33
       SIO  |   6 |   -4.3    2.4    2.9      -7     12     14    -.12


 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 1.2007.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2007.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 2.2007.[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 3.2007.[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 5.2007.0-6). 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 2007 summary.                       (Jun 24, 2018 - Jun 30, 2018)

Table 1.2007.a   GPS week: 2007   MJD: 58293.000-58299.000

         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  258|    0     0     0    -3    -8   -11  -.03    9    9 |    -458    -287      7     89
        |    0     0     0     9    20    11   .03           |     130     151
emr   80|   -1    -1    -1   -10     2    34   .17   12   12 |  138776      76     16     92
        |    1     1     0     5     8     8   .03           |     630     710
esa  150|    0     0    -3   -10    -6   -11  -.05    9    9 |   -1592     193     17    219
        |    0     0     0    10    10    11   .02           |    1198    1357
gfz  179|    0     0     2   -17    -7   -11   .06   11   11 |    -323     101     11    125
        |    0     0     1    16    12     7   .02           |     325     641
grg  107|    2     0    -3   -19    -5   -11  -.10   12   12 |     -45     110      9    151
        |    0     0     3    15     9    27   .02           |     161     310
igr  n/a|    0     0     0   -16     7     0  -.04    4    4 |    2873     371     11     71
        |    0     0     0     4    10    12   .01           |     488     768
jpl   80|    0     0     0     0     9    30   .17    8    8 |  136564     485      7     93
        |    0     1     1     5     9    10   .02           |     597     735
mit  348|    0    -1     3     8     3     4  -.18   13   12 |     -31      -5     46    509
        |    0     0     0    18    22    11   .01           |     288     336
ngs  206|   -1     0     1    30     1    -6   .03   10    9 |    -451    -293    953   2149
        |    0     0     1    19    22     9   .04           |     129     278
sio  336|    0     0     3     5     4   -25  -.14   12   12 |     ---     ---    ---    ---
        |    0     0     2    15    30    16   .02           |     ---     ---


Table 1.2007.b   GPS week : 2007   MJD: 58293.000-58299.000   

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: mm.

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    3    3    3    3    3    3    3 |
   2  |    4    4    4    4    4    4    5 |
   3  |    3    3    3    3    3    3    3 |
   4  |    0    0    0    0    0    0    0 |
   5  |    4    4    4    4    4    4    4 |
   6  |    3    4    3    3    4    4    4 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    3    3    3    3    3    3 |
   9  |    3    3    3    3    3    3    3 |
  10  |    3    3    3    3    5    3    3 |
  11  |    3    3    4    3    3    3    3 |
  12  |    5    5    4    4    4    5    4 |
  13  |    4    4    4    4    4    4    4 |
  14  |    4    4    4    4    4    4    3 |
  15  |    4    4    4    4    4    4    3 |
  16  |    4    5    5    5    5    5    5 |
  17  |    4    4    4    4    4    5    5 |
  18  |    5    5    5    5    5    5    6 |
  19  |    5    5    5    5    6    6    6 |
  20  |    5    5    5    5    5    5    5 |
  21  |    4    4    5    4    4    4    4 |
  22  |    4    4    4    4    4    4    4 |
  23  |    4    4    4    4    4    4    4 |
  24  |    3    3    3    3    3    3    3 |
  25  |    3    3    3   10    3    3    4 |
  26  |    3    3    3    3    4    4    4 |
  27  |    3    3    3    3    3    3    3 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    5    4    4    4    4    4 |
  30  |    4    3    4    4    3    3    4 |
  31  |    4    4    4    5    4    5    5 |
  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 2.2007.0   GPS week: 2007   Day: 0   MJD: 58293.000                            

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     0    -2   -28   -31  -.04    9    9 |    -421    -417      6     88
emr   80|   -2    -1    -3    -5     8    35   .18   12   12 |  138994     195     15     77
esa  150|    0     1    -4   -18   -10    -4  -.03    8    8 |    -964     355     11    248
gfz  179|    0     1     1   -48   -24     0   .04   12   11 |    -171    -607     13    127
grg  110|    3     0    -7   -10    -2   -50  -.09   13   13 |     -61     -89     10    176
igr  n/a|    0     0     0   -13    19    -7  -.04    4    4 |    2338     314     11     72
jpl   80|    0     0     0     4    19    35   .19    7    7 |  135984     310      8    119
mit  349|    0    -1     4    16    26    11  -.17   13   13 |      31    -492     42    569
ngs  209|   -1     0     2    44     0     0  -.03   10    8 |    -344    -604    790   1821
sio  338|    0     0     7     4     4   -27  -.15   13   13 |     ---     ---    ---    ---

Table 2.2007.1   GPS week: 2007   Day: 1   MJD: 58294.000                            

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|    0     0     0   -13   -17   -13  -.09    9    9 |    -473    -325      7    106
emr   80|   -1    -3    -1    -6     0    48   .19   12   12 |  139461      49     16     83
esa  150|    1     0    -3    10    10   -32  -.05    9   10 |   -3320    1792      9    234
gfz  178|    0     1     1   -14   -10   -12   .04   11   10 |    -293     715     12    133
grg  108|    3     0    -7   -31   -14   -36  -.09   13   13 |    -113     324     10    198
igr  n/a|    0     0     0   -18    -3     9  -.04    4    4 |    2920     553     11     60
jpl   80|    0     0     1     0     6    44   .16    8    8 |  136585     264      7    120
mit  349|    0     0     3    -3     1     4  -.17   12   11 |     236     173     41    501
ngs  211|   -1     0     0    31    10   -12   .00    9    8 |    -331    -648    869   2026
sio  344|    0     0     4     9     3   -29  -.15   13   12 |     ---     ---    ---    ---

Table 2.2007.2   GPS week: 2007   Day: 2   MJD: 58295.000                            

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  260|    0     0    -1     4    17    -5  -.04    9    9 |    -547    -136      7     99
emr   80|    0    -3    -1    -3   -13    33   .18   12   12 |  138886     274     17    103
esa  150|    0     1    -2   -16   -15     0  -.03    9    9 |    -582   -1261      8    231
gfz  182|    0     2     1     6    14   -12   .05   11   11 |    -311    -103     13    176
grg  107|    2     1    -6   -34   -17   -19  -.08   13   12 |    -102     178     10    163
igr  n/a|    0     1     1   -22    -6     9  -.02    4    4 |    2743     516     11     70
jpl   80|    0     0     1    -8    12    27   .20    9    9 |  136091     580      9     98
mit  348|    0     0     3   -10   -14     2  -.19   13   12 |    -427     203     41    499
ngs  207|    0     0     0    17    29    -6   .03    9    8 |    -627       8    815   2281
sio  337|    0     0     3    20   -25   -32  -.12   12   13 |     ---     ---    ---    ---

Table 2.2007.3   GPS week: 2007   Day: 3   MJD: 58296.000                            

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  262|    0     0     0    -4   -10     4  -.04    9    9 |    -185    -517      7     70
emr   80|   -1     0    -1   -13    -3    19   .12   13   13 |  138987     -83     17     98
esa  150|    0     1    -4   -10    -5     0  -.06    9    9 |   -2663     797     56    165
gfz  179|    0     0     1   -10   -17    -4   .06   11   10 |    -280     -27     11     95
grg  111|    2     0    -4    -6    -9   -11  -.09   11   10 |     258    -277      9    125
igr  n/a|    0     0     1   -19     8    11  -.04    5    5 |    3177      54     11     74
jpl   80|    0     0    -1    -5     6    38   .15    8    8 |  136541     419      9     71
mit  349|    0    -1     3    11     6    10  -.17   13   12 |      92     -84     40    594
ngs  205|    0     1     3    11    22    -9   .07   10    9 |    -291    -413   1118   2080
sio  336|   -1    -1     3    15    14   -37  -.11   12   12 |     ---     ---    ---    ---

Table 2.2007.4   GPS week: 2007   Day: 4   MJD: 58297.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  259|    1     0    -1    -8   -32   -20  -.02   10    9 |    -477    -310      7     85
emr   80|   -1    -1     0   -15    13    29   .17   13   13 |  139220   -1358     18     92
esa  150|    0     0    -4    -5    -1   -13  -.06    9    9 |     111   -1989     13    219
gfz  181|    0     0     1   -24    -1   -19   .08   12   11 |     204    -747     12    113
grg  111|    1     0     1    -9    -5    30  -.14   13   11 |      35      62      9    133
igr  n/a|    0     1     0   -13     6    -2  -.04    5    5 |    3485   -1094     12     78
jpl   80|    0    -1     0     0    -7     9   .17    8    8 |  137257    -796      8     77
mit  349|    0     0     3    33    38     9  -.20   13   12 |     184    -108     69    494
ngs  208|   -1     1     0     5    -4     7   .07    9    9 |    -505    -273    771   1991
sio  336|    0     0     2    12    -9   -35  -.17   13   14 |     ---     ---    ---    ---

Table 2.2007.5   GPS week: 2007   Day: 5   MJD: 58298.000                            

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  256|    0    -1     0    12    18    -4  -.03    9    9 |    -563    -211      8     98
emr   80|   -1     0    -1    -8     6    40   .15   12   12 |  137606     579     17     90
esa  150|    1     0    -3   -10    -3    -9  -.03    9    9 |   -1753     368     12    213
gfz  176|    0     0     4   -19     0   -21   .05   12   12 |    -840     738     11    116
grg   99|    1     0    -3   -41     9     1  -.12   12   11 |     -69     -84     11    122
igr  n/a|    0     0     0   -16    20     1  -.04    4    4 |    2172     912     10     70
jpl   80|    0     1     0     9     6    29   .16    8    8 |  136025    1038      7     82
mit  349|    0    -1     2   -13   -23    15  -.19   13   13 |     120    -260     48    528
ngs  201|    0     0     1    54    -6   -21   .03   10    9 |    -568    -187   1183   2302
sio  333|    0     0     3    -1   -21   -27  -.16   12   12 |     ---     ---    ---    ---

Table 2.2007.6   GPS week: 2007   Day: 6   MJD: 58299.000                            

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  256|    1     0     0   -12    -9   -12   .03   10    9 |    -544     -94      7     78
emr   80|   -2     0    -1   -17     4    34   .16   12   12 |  138284     877     18    102
esa  150|    0     0    -4   -21   -22   -18  -.06    9    9 |   -1973    1289     12    226
gfz  178|    0     0     2   -14   -13   -14   .10   11   10 |    -576     738     11    121
grg  109|    2     0     0    -5     4     7  -.11   12   11 |    -268     656      8    146
igr  n/a|    0     0     1   -11     9   -24  -.02    4    4 |    3281    1344     11     73
jpl   80|    0     2     0     4    22    31   .14    8    8 |  137466    1585      7     86
mit  349|    0    -1     2    25   -10   -19  -.18   13   12 |    -459     529     42    382
ngs  203|   -1     0     1    50   -40    -3   .05   10    9 |    -497      62   1131   2545
sio  333|   -1     0     1   -24    64     9  -.15   11   12 |     ---     ---    ---    ---

       
       
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 3.2007.0   GPS week: 2007   Day: 0   MJD: 58293.000                            

        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    8   10    8   12    4    6    6    8    9    3 |    24   27   29   25   26   25   27   23   24   25    25
   2E |   12    8    7   12   12    5    9   12   10   13    3 |    52   50   51   51   53   50   52   48   49   51    50
   3  |    8    6   11    7    8    4    5    7    7   10    2 |    25   31   27   24   27   26   31   27   26   29    27
  X4  |    2  ---  ---  ---  ---   19  ---  ---  ---  ---    0 |    36  ---  ---  ---  ---   29  ---  ---  ---  ---    36
   5  |    7    8    9   13   13    4   10   14   11   15    4 |    48   48   47   37   49   42   51   34   38   39    43
   6E |    9    8   11    9   16    3    6   10    7    9    3 |    23   26   30   27   26   25   27   23   26   25    25
   7  |    9   15    8   11   16    5    9   12   13   13    4 |    23   22   23   29   27   24   22   27   29   26    23
   8  |    9   10    5   10   12    3    7    9    7    9    3 |    29   31   28   27   31   28   30   29   28   28    28
   9  |    9    8   10    9   10    4    7    5    7   12    3 |    39   47   37   40   39   40   47   40   42   48    42
  10  |    6    5   10   10   10    3    5    8    8    8    2 |    21   26   23   22   20   21   26   20   21   23    22
  11E |    7   10    9    9   14    3    5   14    6   10    3 |    26   30   28   24   25   26   28   31   27   28    26
  12  |   11   19    8   14   12    5   10   18   11   15    4 |    36   31   31   37   33   34   33   36   35   36    33
  13  |   10    8    9   15   13    4    6   12   13   18    4 |    24   30   24   35   24   27   31   28   29   37    27
  14  |   10    7    9   13   10    4    5   11   10   18    3 |    25   29   25   32   29   29   27   28   33   30    27
  15  |   10   11    9   14   13    4    7   15   11   17    4 |    46   48   47   45   51   44   49   41   42   44    45
  16  |    8   22    5   13   15    5    6    9   10   16    4 |    37   36   37   43   34   39   34   39   42   41    37
  17  |    9    8    7   14   13    5    7   21   10   13    4 |    26   27   22   27   26   24   26   23   24   21    22
  18E |   12   18   11   10   12    5   12   16   12   13    4 |   130  128  121  125  128  124   94  125  126  126   126
  19  |   13   15    8   19   14    6    7   29   13   15    5 |    25   24   24   26   24   24   25   29   24   22    21
  20  |    8   15    8   15   14    5   10   21   15   16    4 |    56   56   54   57   54   54   55   58   56   54    54
  21E |   14    8    8   13   20    5    7   10   11    9    4 |    37   37   33   36   39   34   36   31   33   32    34
  22  |    8    7   11   10   10    5    6   11   12   15    3 |    40   44   38   49   43   45   44   46   46   46    43
  23  |    8   19    8   10   11    6    5   10    9   13    3 |    22   22   20   25   22   22   22   24   23   27    21
  24  |   11   10    7    8   13    3    6   11    8    7    3 |    28   26   24   24   29   23   27   25   20   23    24
  25  |    7    9    5    7   11    4    7    8    6    9    2 |   423  425  424  425  323  425  423  424  425  428   425
  26  |    7   11    8   11   13    3    6   10    6    9    3 |    32   34   33   35   36   33   34   30   35   32    32
  27  |    6    8    5    7   10    3    7    8    6    8    2 |    31   35   32   33   34   32   34   32   32   32    32
  28  |   10   13    7   13   14    6    6    9    9   13    3 |    28   27   25   23   31   24   29   21   24   23    24
  29  |   10   19    6   14   14    6   10   15   12   13    4 |    30   30   26   29   26   27   30   26   25   27    26
  30  |    9   15    8    7   17    3    8    7   11    8    3 |    25   28   29   26   30   26   27   27   30   27    26
  31  |   11   12    7   15   19    5    6   17   12   12    4 |    24   28   24   32   26   26   25   20   29   24    23
  32  |    7    5   11    9    9    3    6    9    7   15    3 |    41   44   38   42   42   42   46   40   43   45    41
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    8   12   13    4    7   13   10   13      |T   47   49   46   48   45   46   48   46   47   48    46
 WRMS |    9   12    8   11   13    4    7   13    8   13      |NE  46   49   46   48   44   46   49   46   48   48    46
 MEDI |    9   10    8   11   13    4    7   11   10   13      |MD  29   31   29   32   31   28   31   29   30   30    27

Table 3.2007.1   GPS week: 2007   Day: 1   MJD: 58294.000                            

        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    7   11    8   13    3    6    4    8    8    3 |    23   27   25   24   27   24   26   23   25   25    24
   2E |   14   10   10   11   16    6    7   11   10    9    4 |    49   47   47   45   51   45   47   45   45   47    46
   3  |    8    6   11    9   10    4    6    5    7   10    3 |    16   26   18   20   20   19   26   20   20   24    20
  X4  |    2  ---  ---  ---  ---   18  ---  ---  ---  ---    0 |    32  ---  ---  ---  ---   24  ---  ---  ---  ---    32
   5  |    7    8   12   11   13    4   10   12   10   13    3 |    34   37   37   33   37   33   39   30   32   33    34
   6E |    8    9   11    8   18    4    6    8    6   12    3 |    26   31   27   26   31   26   27   25   28   27    26
   7  |   11   12    5   10   16    4    7    9   11   11    3 |    21   21   18   26   24   20   20   19   24   21    20
   8  |    9    8    5    8   11    2    7    7    8   12    3 |    21   26   21   21   25   20   24   22   21   19    21
   9  |    7    6    9    7    9    4    6    6    7   11    2 |    31   41   32   35   31   33   41   35   36   41    36
  10  |    6    6   10    7    8    3    5    6    7   11    2 |    19   21   20   18   17   18   24   18   21   22    19
  11E |    7    8   10    9   14    3    5   12    6    9    3 |    22   29   26   24   23   24   26   30   26   26    25
  12  |   10   21   10   11   12    4    8   15   13   12    4 |    26   21   18   25   23   21   22   26   26   22    22
  13  |   10    8   12   15   12    4    6   12   10   17    4 |    15   22   13   31   13   19   22   18   22   29    19
  14  |    9    8    9   14   10    3    5   10    9   18    3 |    15   17   16   14   15   14   16   16   19   21    14
  15  |    9   13   12   14   11    3    9   12   11   18    4 |    42   41   43   43   45   40   42   40   43   45    42
  16  |   10   22    6   13   16    5    7   10   11   16    4 |    26   27   26   31   26   28   26   29   31   31    26
  17  |   10    7   10   14   15    4    6   22    9   10    4 |    27   28   22   26   26   23   26   20   28   20    23
  18E |   12   19   12   10   13    6   14   15   12   11    4 |   108  109  103  104  106  105   88  104  102  107   105
  19  |    9   16   11   14   15    6    6   30   11   17    5 |    26   25   24   25   22   23   23   28   26   24    21
  20  |    9   13    9   13   12    5    9   20   12   15    4 |    48   48   45   47   47   46   47   49   47   46    46
  21E |   12    8    9   13   19    4    7    9   10   12    4 |    38   38   32   33   41   32   37   31   30   32    33
  22  |   10    7   11   11    9    5    7   11   13   14    3 |    37   40   35   41   38   38   41   37   40   39    38
  23  |    7   21    8    9   10    5    5    8    8   13    3 |    20   19   17   24   17   20   20   21   21   24    19
  24  |   11   11    9    5   12    3    8    8    6   11    3 |    20   19   17   17   21   17   21   18   18   17    17
  25  |    9   13    6    7   12    4    7    8    8   11    3 |   451  454  455  453  329  453  451  452  455  455   453
  26  |    9    9   10   11   12    4    7    8    5    7    3 |    28   29   27   27   29   26   29   25   27   27    27
  27  |   10    8    6    8   13    3    7    8    8    9    3 |    27   31   28   29   29   27   30   27   27   26    27
  28  |   12    9    8   12   14    6    7   10    9   13    3 |    26   28   25   24   27   23   26   23   26   27    24
  29  |    8   20    9   16   13    5   14   13   12   13    4 |    22   21   20   24   23   19   25   20   19   21    20
  30  |    8   14    7    6   17    3    7    7    6    7    3 |    22   27   22   22   27   21   24   21   23   23    22
  31  |    9   10    8   12   18    5    7   16   10   12    4 |    19   23   17   24   23   19   22   15   23   16    18
  32  |    6    7   10    8    8    4    7    7    6   16    3 |    33   37   30   31   30   32   39   31   32   39    33
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    9   11   13    4    8   12    9   13      |T   42   45   42   44   40   41   44   42   43   44    42
 WRMS |    9   12   10   10   13    4    8   11    8   12      |NE  42   45   41   44   38   41   45   42   44   44    42
 MEDI |    9    9   10   11   13    4    7   10    9   12      |MD  26   28   25   26   27   24   26   25   26   26    24

Table 3.2007.2   GPS week: 2007   Day: 2   MJD: 58295.000                            

        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   11    9   12    4    6    5   11    9    3 |    26   28   30   29   27   27   27   24   29   28    26
   2E |   10   10    8   11   13    3   10   12    8   13    3 |    45   47   46   46   49   45   46   44   46   45    45
   3  |    8    6   11    7    9    3    5    6    9   11    3 |    18   26   21   20   21   20   26   21   21   25    21
  X4  |    1  ---  ---  ---  ---   13  ---  ---  ---  ---    0 |    30  ---  ---  ---  ---   27  ---  ---  ---  ---    30
   5  |    7    8   10   15   10    4   12   14    9   13    4 |    40   40   39   33   41   35   43   30   40   33    37
   6E |    7    9   10   10   14    3    9    9    7    8    3 |    29   30   30   28   28   28   31   24   27   27    27
   7  |   11   11    6   10   16    4    7   12   10   13    3 |    23   22   20   24   24   22   22   20   27   20    21
   8  |    4    6    6    7   10    3    7    8    5    8    2 |    24   26   24   24   27   23   26   23   24   25    24
   9  |    7    6    9    9    8    5    7    5    6   11    2 |    32   37   28   31   28   31   38   32   35   37    32
  10  |    7    6   10    8    8    3    8    8    7   11    3 |    20   26   22   20   22   20   25   19   23   25    21
  11E |    7   15    9    8   12    3    9   11    6   10    3 |    28   33   27   26   26   26   28   29   27   28    26
  12  |    8   20    8    9   12    4   10   15   12   11    4 |    26   25   20   23   26   21   24   25   26   23    23
  13  |    9    7   11   13   10    5    8   12    9   17    4 |    17   25   19   30   19   21   25   25   21   30    21
  14  |    7    8   10   12    8    3    7   10    8   15    3 |    19   20   19   19   19   19   20   19   21   21    18
  15  |    6   13    9   14    8    4   10   12    9   15    3 |    41   45   43   42   43   40   44   38   41   44    41
  16  |    9   22    7   14   17    6    8   11   10   17    4 |    25   25   26   29   26   25   23   28   30   28    25
  17  |    8    8    8   14   13    5    6   23    8   11    4 |    22   29   23   30   25   25   27   24   26   22    23
  18E |   10   20   10   16   14    6   14   16   12   14    5 |    95   93   90   93   93   90   65   88   91   92    91
  19  |   10   15    7   13   11    7    9   32    9   14    5 |    21   27   22   26   24   23   26   32   24   22    21
  20  |    9   13    9   14   14    5   10   20   12   14    4 |    42   43   44   44   45   43   44   47   47   46    43
  21E |   10    9    6   13   26    5   13   10   10   10    4 |    32   33   32   32   44   31   34   28   31   31    31
  22  |    9    8   10   11   11    4    8   10   13   14    3 |    36   39   36   43   38   39   38   37   41   39    37
  23  |    8   18    8   10    9    5    9    9    9   12    3 |    20   15   20   21   17   18   16   18   25   21    18
  24  |    8   11    6    9    8    3    8    8   10   10    3 |    20   23   23   21   24   19   25   20   18   22    20
  25  |   10   11    5    5   11    4   10    9   10   11    3 |   372  368  368  371  213  369  370  368  366  371   369
  26  |   10   11    9    8   14    3    7    9    6    8    3 |    29   29   30   29   32   29   32   29   34   29    29
  27  |    7   10    7    8   13    3    9    8    6    8    3 |    25   29   26   26   27   23   27   25   26   24    25
  28  |   11   12    6   12   14    5    8   10   10   12    3 |    28   26   22   24   26   23   26   21   25   25    23
  29  |    7   21    7   13   13    5   11   14   11   14    4 |    22   25   23   25   27   23   23   24   28   25    23
  30  |   10   15    8    7   15    4   10    7    9    8    3 |    26   25   26   24   26   24   26   23   27   24    24
  31  |    9   11    6   13   18    6    9   17   10   14    4 |    18   23   19   26   25   22   24   18   26   18    19
  32  |    8    8   10   10    8    4    8    8    7   11    3 |    32   38   31   33   33   33   39   34   35   37    33
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    9   11   13    4    9   13    9   12      |T   40   42   40   41   36   39   41   39   42   41    39
 WRMS |    8   12    9   11   12    4    9   12    8   13      |NE  39   42   39   41   35   39   42   40   42   41    39
 MEDI |    8   11    8   10   12    4    9   10    9   11      |MD  26   28   26   28   27   25   27   25   27   27    25

Table 3.2007.3   GPS week: 2007   Day: 3   MJD: 58296.000                            

        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 |   13    7   10    7    8    4    6    6   10    7    3 |    20   24   24   20   21   20   20   19   18   21    20
   2E |   12   11    8   10   13    5    8   13    9   10    3 |    36   32   33   33   31   32   32   31   35   31    32
   3  |    7    8   10    8    8    4    6    7   13   13    3 |    20   28   21   18   21   20   26   20   23   27    21
  X4  |    1  ---  ---  ---  ---   20  ---  ---  ---  ---    0 |    22  ---  ---  ---  ---   18  ---  ---  ---  ---    22
   5  |    7    9   10   13   11    4    9   14   11   12    3 |    39   40   40   33   41   35   44   27   35   33    37
  X6E |    7  ---   12    8   11    3    5    9    5    8    3 |    22  ---   27   21   20   21   21   17   21   22    21
   7  |    9   12    8   10   15    4    6   11    9   16    3 |    22   21   19   24   24   21   21   21   24   21    20
   8  |    7    7    5    7   11    3    6   10    8    9    2 |    20   22   20   22   23   19   22   22   20   20    20
   9  |    9    9   11   10    8    5   10    6    4   14    3 |    25   32   21   22   22   25   37   27   29   35    27
  10  |    8    6    9    9    7    4    7    7    7    9    2 |    16   20   20   18   18   16   21   15   15   19    16
  11E |    6   12    9    7   10    3    9   10    8   11    3 |    26   28   26   23   27   22   27   27   23   26    25
  12  |    8   19    7   11   14    4    9   15   13   10    4 |    23   24   20   25   23   22   24   22   25   20    22
  13  |    9    8   11   11    8    4    8   12   11   17    3 |    19   23   16   29   18   21   23   24   25   33    22
  14  |   11    8    8   14    9    4    5   11    9   14    3 |    21   16   17   17   15   17   17   23   22   23    17
  15  |    7   12    8   12    7    4   10   13   10   13    3 |    27   28   29   29   26   26   29   21   29   27    26
  16  |    9   24    6   14   15    6    8    9   11   17    4 |    27   26   23   26   24   23   23   24   27   27    23
  17  |    7    7    9   14   12    5    6   23    9   11    4 |    22   26   21   30   24   24   29   24   29   25    23
  18E |   15   20   11   12   11    5   14   15   11   13    5 |    61   66   60   60   62   61   62   61   59   58    60
  19  |   10   14    9   13   13    6    9   31   11   17    5 |    22   25   23   26   24   23   27   30   26   24    21
  20  |   10   13   11   14   11    5    9   19   13   14    4 |    22   21   18   29   17   22   20   30   26   26    21
  21E |    9    8   10   12   14    4    8   11   10    9    3 |    27   26   22   26   29   24   27   26   23   26    24
  22  |   12    9    9   11   10    5    8   12   13   15    4 |    17   25   18   27   18   24   24   25   28   26    21
  23  |    6   18    8    9    8    4    6    8   10   11    3 |    16   15   15   17   14   16   13   17   21   20    15
  24  |    9   10    7    7    9    4    8   11    8    6    3 |    22   22   23   23   23   20   22   21   19   20    20
 X25  |   17   35   17   17  ---   16   37   26   22   19    9 |   723  719  724  724  ---  722  722  726  719  726   722
  26  |   11   10    8    7   12    5    8    8   10    8    3 |    22   21   18   18   21   17   20   17   22   19    18
  27  |    7    9    4    5   11    4    9   10    8   10    3 |    24   25   23   24   23   21   25   24   21   23    23
  28  |    8   11    7   12   11    5    8   11    9   13    3 |    20   24   20   21   22   19   22   21   24   24    20
  29  |    9   19    7   14   12    5    9   15   10   12    4 |    18   18   15   23   20   17   18   21   18   18    17
  30  |    7   19    7    6   13    4    8    8    7    9    3 |    22   24   21   21   25   21   23   23   22   24    21
  31  |    9   16    6   15   17    7    9   19   12   12    4 |    18   21   15   25   22   19   22   21   22   17    17
  32  |    8    7    9   10    7    4    9    9    7    9    3 |    22   28   18   23   21   22   30   24   27   29    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13    9   11   11    5    8   13   10   12      |T   45   49   45   47   23   44   48   46   47   48    44
 WRMS |    9   13    9   10   10    5    8   12    9   12      |NE  48   51   48   51   22   48   52   50   51   52    48
 MEDI |    9   10    9   11   11    4    8   11   10   12      |MD  22   24   21   24   22   21   23   23   24   24    21

Table 3.2007.4   GPS week: 2007   Day: 4   MJD: 58297.000                            

        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  ---   10    6    9    4    6    5    9   11    3 |    16  ---   20   17   18   15   18   17   17   17    16
   2E |    9   10    9   14   20    6    9   12    9   10    4 |    35   34   33   31   37   32   35   33   35   34    33
   3  |    9    7   10    9    8    3    6    6   10   12    3 |    23   25   22   20   21   20   25   20   23   27    22
  X4  |    2  ---  ---  ---  ---   25  ---  ---  ---  ---    0 |    31  ---  ---  ---  ---   18  ---  ---  ---  ---    31
   5  |    6    8   12   13    9    4   10   12   10   14    3 |    33   38   36   30   33   33   39   24   32   33    33
   6E |    6   13   12    9   14    4    6   10    7    9    3 |    15   24   22   15   17   16   18   18   16   17    16
   7  |   14   12    9   11   14    6    7   11   12   15    4 |    22   21   17   23   22   18   18   16   24   17    18
   8  |    9    8    6   11   10    3    6   11    9   12    3 |    19   25   21   20   25   18   23   22   21   21    20
   9  |   10    8   10   12   10    7    8    6    7   11    3 |    27   34   25   26   24   25   35   28   33   34    28
  10  |   12    6   11    7   33    4    6    8    7   13    4 |    14   19   17   17   31   15   20   16   14   23    16
  11E |    8   15    9    6    9    4    8    8    6   11    3 |    22   31   24   23   22   22   25   24   24   24    23
  12  |    7   18    7   12   14    4   10   15   10   14    4 |    23   23   19   25   23   21   21   24   22   23    21
  13  |    9    9   11   17    8    3    6   10    9   17    4 |    16   24   15   34   20   21   23   22   25   32    21
  14  |   11    8   10   17    9    3    5   11   10   17    4 |    19   17   17   16   16   16   18   17   22   18    16
  15  |    6   13   10   15    6    3    9   11   12   13    3 |    38   40   37   39   35   36   37   31   40   37    36
  16  |   11   22    9   14   18    6   11    9   11   15    4 |    22   20   21   25   23   21   21   23   24   23    20
  17  |    6    9    8   14   13    5    7   23    9   14    4 |    20   25   19   27   23   22   26   22   27   20    20
  18E |   11   19   11   13    9    4   14   15   12   18    4 |    78   80   75   74   78   75   78   77   78   77    76
  19  |   11   14    9   18   13    6    9   32    9   14    5 |    23   27   23   27   26   23   28   30   26   21    22
  20  |   10   14   10   14   10    5   10   20   11   18    4 |    44   41   39   42   40   40   42   46   44   42    41
  21E |   12    8    9   14   10    5    8   10   10   10    3 |    28   28   25   25   30   24   26   26   26   27    25
  22  |   10    8   10   10   11    4    9   11   12   15    3 |    30   36   31   38   33   34   34   36   36   35    33
  23  |    7   20    8   10    9    6    8   10    9   11    3 |    16   16   17   18   15   15   15   17   21   19    16
  24  |    6   10    5    8    9    4    8    9    9    7    2 |    20   22   21   20   22   19   22   19   20   17    19
  25  |   11   10    6    7   11    4    9    7    7   12    3 |   369  368  369  366  560  367  368  368  367  367   368
  26  |   11   12    9    8   14    4    9    8    8   12    3 |    22   27   23   24   25   23   25   22   24   22    23
  27  |   10    8    7    9   10    4    7    9   10   11    3 |    25   25   23   23   25   20   24   23   25   19    22
  28  |    7   13    6   12   13    6    9   10    8   13    3 |    20   27   19   21   24   18   25   20   21   20    20
  29  |    8   19    7   15   12    6   10   12    9   13    4 |    19   19   16   23   19   17   20   19   19   17    17
  30  |   10   15    8    6   12    5   10    5    7    8    3 |    22   23   22   21   24   20   23   20   25   20    21
  31  |   11   11    7   14   17    6    7   19   10   13    4 |    18   19   18   24   21   17   20   18   20   12    16
  32  |    9    8   10   13    8    4    7    8    6   15    3 |    29   35   27   27   30   28   36   28   30   32    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13    9   12   13    5    8   13    9   13      |T   36   39   35   37   43   34   38   36   38   37    35
 WRMS |    9   13    9   11   11    5    8   12    9   14      |NE  37   39   36   39   46   35   39   37   39   38    36
 MEDI |    9   10    9   12   10    4    8   10    9   13      |MD  22   25   22   24   24   21   25   22   24   23    21

Table 3.2007.5   GPS week: 2007   Day: 5   MJD: 58298.000                            

        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    8   10    8   11    3    5    6   10   10    3 |    29   32   30   31   31   29   30   28   30   33    29
   2E |    7   11    8   13   16    5    9   11   10   13    3 |    69   68   68   67   70   67   71   67   69   66    68
   3  |    8    6    9    8    8    4    6    8    8   11    3 |    20   27   20   19   19   20   26   20   23   23    21
  X4  |    1  ---  ---  ---  ---   17  ---  ---  ---  ---    0 |    27  ---  ---  ---  ---   26  ---  ---  ---  ---    27
   5  |   10    6   11   14   11    5    8   14   11   14    4 |    38   37   35   33   37   33   39   31   35   34    35
   6E |    7    7   13   12   13    5    7   11    9    7    3 |    38   33   37   35   37   35   34   34   35   35    35
   7  |    9   12   10   12   15    5    8   11   10   14    4 |    25   20   22   26   24   22   22   20   27   20    21
   8  |    8    9    7    8   11    3    7    9    7   11    3 |    21   22   21   23   25   20   23   23   20   20    21
   9  |    7    8   11   13    8    6    9    5    7   13    3 |    28   36   28   29   25   28   36   30   31   37    31
  10  |    7    6   11    7    8    3    6    7    7   10    2 |    23   26   26   23   30   22   27   23   23   28    25
  11E |    9   12   10    7   13    4    8    8    6    9    3 |    28   30   28   27   26   26   27   26   26   26    26
  12  |    9   18    8   13   14    5    8   15   14   12    4 |    24   25   21   29   26   24   25   27   29   24    24
  13  |    8    9   11   18    7    2    7    8   11   15    3 |    20   23   18   37   20   22   24   20   24   31    22
  14  |   10    8   10   11    8    2    4   10    9   16    3 |    19   17   18   15   16   15   16   14   17   18    15
  15  |    6   15    9   16    5    3    9   11    9   14    3 |    41   43   43   46   43   41   42   38   40   41    41
  16  |   10   21    6   14   18    7    7    9   12   17    4 |    24   20   24   27   24   23   21   26   27   28    23
  17  |    7    9   10   15   13    5    7   25   10   12    4 |    24   28   22   30   25   24   27   23   28   23    23
  18E |   15   19   13   13    9    4   15   15   11   15    5 |   117  116  111  113  116  112  113  111  113  116   114
  19  |   10   13   10   19   13    6    9   34   11   14    5 |    23   24   24   29   23   24   26   33   26   22    21
  20  |    6   12   11   14   14    4    9   20   13   16    4 |    43   45   46   47   47   43   45   48   42   44    44
  21E |   10   11    9   14   13    3    8   11   11   10    3 |    47   49   44   44   50   45   49   46   42   48    46
  22  |   13    7    9   12    9    5    8   11   10   13    3 |    38   41   35   41   39   39   41   39   42   40    39
  23  |    9   18    9   12    9    5    8    9   11   12    4 |    25   18   23   22   18   20   16   20   24   24    20
  24  |    9    9    6    9    9    4    7    8   10   12    3 |    23   25   23   25   26   23   26   23   22   26    24
  25  |    9   10    6    7    6    6    8    9    9    9    3 |   342  342  341  342  220  340  341  340  339  342   341
  26  |   13   11    9   14   13    5    9    7   10    9    3 |    33   32   34   30   35   30   34   30   33   32    32
  27  |    5    7    8    9   10    4    6    9    6    8    2 |    29   29   30   31   29   27   29   28   27   27    28
  28  |   11   13    7   15   11    6    7    9    7   12    3 |    27   25   24   26   26   23   26   21   25   24    24
  29  |    8   19    8   14   12    3    8   12   13   11    4 |    24   23   22   25   24   22   23   24   27   24    23
  30  |    8   13    8    9   12    4    8    6    6    7    3 |    27   26   27   27   28   25   27   25   28   26    26
  31  |   10   10    7   17   18    5    8   20   12   11    4 |    21   24   20   28   25   20   24   23   25   19    21
  32  |    7    9   10    7    7    4    8    7    7   12    3 |    32   39   31   34   32   32   40   34   32   38    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    9   12   12    4    8   13   10   12      |T   42   43   41   43   39   40   43   41   42   43    41
 WRMS |    9   12    9   12   11    4    8   13    9   12      |NE  39   40   39   41   35   38   41   39   40   40    38
 MEDI |    9   10    9   13   11    4    8    9   10   12      |MD  27   28   27   29   26   25   27   27   28   28    26

Table 3.2007.6   GPS week: 2007   Day: 6   MJD: 58299.000                            

        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    7   12    7    8    3    7    7   10    8    3 |    33   33   36   34   32   33   32   30   34   34    32
   2E |   17    9   11   12   20    7    9   11   10   10    4 |    83   83   81   83   88   81   84   79   81   81    82
   3  |   10    8    9    7    9    3    7    7    9   10    3 |    18   25   22   22   19   20   26   20   22   27    21
  X4  |    1  ---  ---  ---  ---   18  ---  ---  ---  ---    0 |    30  ---  ---  ---  ---   25  ---  ---  ---  ---    30
   5  |    8    7   10   13   13    4   12   14   12   15    4 |    48   46   47   38   47   42   52   36   42   39    44
   6E |    9   11   13   10   12    4    6   10    8    8    3 |    38   39   41   36   39   38   39   36   37   38    38
   7  |   11   10    7    9   14    4    8   10   12   12    3 |    22   23   20   25   23   21   20   20   27   21    20
   8  |    8    7    6   10   12    3    6   10   10   10    3 |    20   23   20   21   25   18   22   22   18   18    19
   9  |    7    9   10   10    7    5    9    6    7    9    3 |    37   44   33   35   32   35   42   37   36   39    36
  10  |    9    6   10    9    7    4    5    9    6    8    2 |    20   23   22   23   23   19   24   20   19   24    21
  11E |    9   11    8    7    9    3    6    9    7   10    3 |    27   28   28   25   23   26   27   27   28   26    25
  12  |    7   19    8   12   14    3    9   14   14    9    4 |    30   30   25   33   28   26   27   31   31   31    28
  13  |    8    9   10   14    7    3    8    9   10   14    3 |    17   24   12   35   18   22   23   24   27   31    22
  14  |   14    8    8    9    6    4    4   11    8   13    3 |    20   19   19   21   19   20   18   19   22   20    18
  15  |    4   12    7   12    4    3    9   10    9   11    3 |    46   48   47   45   46   44   49   42   43   44    45
  16  |   10   24    8   12   19    6    8   10   13   18    5 |    31   30   31   37   29   32   29   33   35   35    30
  17  |    7    9    7   17   16    6    7   28   12   13    4 |    21   24   21   32   23   23   26   26   27   18    21
 X18E |   16   26   11   18   14    6  ---   17   12   13    6 |   150  154  150  147  153  150  ---  149  148  152   149
  19  |   10   15    9   16   17    7    9   36   12   17    5 |    22   28   26   29   24   24   27   37   26   22    22
  20  |   10   12   10   13   11    6   10   21   10   14    4 |    50   51   50   55   51   51   50   55   49   50    50
  21E |   16   10   10   13   11    5    7   11   10    8    4 |    51   49   43   46   50   46   49   47   41   49    46
  22  |   12    9    9   11    9    4    8   11   12   12    3 |    39   44   39   44   44   43   43   43   45   44    42
  23  |    7   18    9    8    8    5    7    6   10    8    3 |    20   18   19   19   16   17   16   18   22   19    17
  24  |    9    9    6    9    7    4    7    8    6    8    2 |    20   23   22   23   23   20   24   21   19   16    20
  25  |   11   19    5    7    9    3    9    9    8    7    3 |   222  219  223  221  175  222  224  222  222  220   222
  26  |   14   13    9   10   17    3    8    9    6    7    3 |    34   34   32   30   36   31   34   31   33   31    32
  27  |    7    7    6   10    9    3    8    9   10    8    3 |    23   25   24   23   24   21   23   22   23   22    22
  28  |    7   11    5   12   13    6    8   11    9   13    3 |    25   28   23   23   27   21   26   22   23   24    23
  29  |    9   18    8   14   14    6   10   11   13   14    4 |    28   27   23   27   23   24   25   28   25   24    24
  30  |    9   16    6    9   13    3    9    6    7    8    3 |    25   30   27   26   28   25   28   26   28   25    26
  31  |    7   14    7   13   18    5    8   22   11   13    4 |    20   22   17   28   24   21   22   24   23   17    18
  32  |    9    8   10    7    7    5    7    7    9   11    3 |    38   40   31   40   36   36   43   39   36   41    37
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12    9   11   12    4    8   13   10   11      |T   40   43   40   42   40   39   39   41   41   41    40
 WRMS |    9   12    9   10   11    4    8   12    9   12      |NE  35   37   35   38   34   34   37   36   36   36    35
 MEDI |    9   10    9   10   11    4    8   10   10   10      |MD  28   30   27   32   28   25   27   30   28   31    26



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 4.2007   GPS week: 2007   MJD: 58293.0-58299.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |U   11    10    24 |U    7    13    26 |U   12    11    31 |
emr | emr 2944 |U   20    17    39 |U   16    14    48 |    16    13    39 |
esa | esa 2976 |    13    10    29 |U    7    12    30 |    12    13    27 |
gfz | gfz 2971 |U   10     9    25 |U    7    13    27 |U   14    17    48 |
grg | grg 2962 |U   12    16    31 |U    9    19    31 |    13    16    38 |
igr | igr 2957 |    11    10    26 |     6    12    27 |    12    12    29 |
igs | igs 2962 |    11     9    25 |     6    11    28 |    12    11    28 |
jpl | jpl 2962 |U   14    12    37 |U    8    12    40 |U   15    14    38 |
mit | mit 2976 |U   14    12    28 |U    9    11    35 |U   13    14    36 |



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 5.2007.0   GPS week: 2007   Day: 0   MJD: 58293.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     9    10    23 |     7    12    23 |    11    12    33 |
emr | emr 2972 |    18    14    31 |    16    15    49 |    13    11    41 |
esa | esa 2976 |    11     9    27 |     6    12    26 |    11    13    28 |
gfz | gfz 2972 |     8     9    24 |     8    13    22 |    12    13    32 |
grg | grg 2976 |     9    11    26 |     8    18    29 |    11    12    31 |
igr | igr 2953 |     9     9    23 |     7    12    23 |    11    12    31 |
igs | igs 2965 |    10     8    24 |     6    11    26 |    11    10    29 |
jpl | jpl 2976 |    14     9    33 |     8    13    35 |    11    11    35 |
mit | mit 2976 |     9     9    28 |     8    10    33 |    12    11    32 |

Table 5.2007.1   GPS week: 2007   Day: 1   MJD: 58294.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9    11    19 |     5    12    23 |    13    16    31 |
emr | emr 2972 |    15    18    32 |    17    15    48 |    16    14    31 |
esa | esa 2976 |    10    11    25 |     5    11    30 |    13    18    27 |
gfz | gfz 2972 |     8    11    20 |     6    12    24 |    13    16    31 |
grg | grg 2976 |    10    16    26 |     7    18    26 |    14    19    33 |
igr | igr 2961 |     9    11    21 |     4    11    25 |    12    17    29 |
igs | igs 2962 |     9    10    22 |     5    10    26 |    13    15    27 |
jpl | jpl 2976 |    10    10    30 |     7    10    38 |    16    15    32 |
mit | mit 2976 |    11     9    24 |     9    11    30 |    12    11    31 |

Table 5.2007.2   GPS week: 2007   Day: 2   MJD: 58295.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9    14    22 |     6    12    26 |    12    13    34 |
emr | emr 2972 |    17    10    31 |    16    13    51 |    15    12    35 |
esa | esa 2976 |    10    11    24 |     7    11    29 |    11    14    30 |
gfz | gfz 2966 |     8    13    24 |     8    12    26 |    13    14    34 |
grg | grg 2976 |    10    17    26 |     9    18    33 |    14    27    58 |
igr | igr 2953 |     8    13    22 |     7    11    24 |    12    14    32 |
igs | igs 2972 |     9    12    23 |     7    10    26 |    11    13    30 |
jpl | jpl 2976 |    13    12    31 |     7    10    36 |    13    15    36 |
mit | mit 2976 |     9    12    23 |     9    10    29 |    10    13    29 |

Table 5.2007.3   GPS week: 2007   Day: 3   MJD: 58296.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    11     9    24 |     7    13    27 |    15    10    32 |
emr | emr 2876 |    24    29    60 |    19    17    53 |    29    15    59 |
esa | esa 2976 |    12     9    30 |     6    13    26 |    14    12    32 |
gfz | gfz 2973 |    10     8    26 |     7    13    26 |    14    11    35 |
grg | grg 2880 |    11    20    36 |     7    19    30 |    15    10    36 |
igr | igr 2945 |    10     8    26 |     6    12    25 |    15    11    32 |
igs | igs 2972 |    11     7    26 |     6    11    27 |    15    10    32 |
jpl | jpl 2976 |    15    17    45 |     9    11    46 |    28    15    70 |
mit | mit 2976 |    11     9    27 |     8     9    33 |    14    10    35 |

Table 5.2007.4   GPS week: 2007   Day: 4   MJD: 58297.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    12     8    23 |     6    12    25 |    11     7    28 |
emr | emr 2876 |    20    20    41 |    14    11    40 |    16    11    32 |
esa | esa 2976 |    12     9    24 |     6    10    31 |    11    11    25 |
gfz | gfz 2972 |    11     7    23 |     6    13    30 |    17    24    82 |
grg | grg 2976 |    12    16    33 |     8    16    33 |    12    10    29 |
igr | igr 2960 |    10     7    24 |     6    10    28 |    11     8    26 |
igs | igs 2972 |    11     8    24 |     5    10    28 |    11     8    25 |
jpl | jpl 2976 |    14    11    33 |     7    12    38 |    11    11    32 |
mit | mit 2976 |    25    22    32 |    12    16    50 |    19    32    53 |

Table 5.2007.5   GPS week: 2007   Day: 5   MJD: 58298.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    16    11    24 |     7    17    25 |    10     9    26 |
emr | emr 2972 |    23    15    33 |    14    14    42 |    11    12    43 |
esa | esa 2976 |    17    11    28 |     7    15    28 |    11    11    20 |
gfz | gfz 2971 |    15    10    24 |     7    16    29 |    13    21    43 |
grg | grg 2976 |    16    14    26 |    10    22    27 |    12    21    42 |
igr | igr 2960 |    16    10    25 |     7    15    28 |    10    11    24 |
igs | igs 2960 |    16    10    26 |     7    14    28 |    10    10    24 |
jpl | jpl 2976 |    20    13    34 |     8    14    41 |    11    14    34 |
mit | mit 2976 |    14    11    27 |    10    12    32 |    12    12    27 |

Table 5.2007.6   GPS week: 2007   Day: 6   MJD: 58299.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    12     9    34 |     9    16    33 |    11     9    34 |
emr | emr 2972 |    25    16    43 |    14    14    55 |    12    19    30 |
esa | esa 2976 |    16    11    42 |    10    13    37 |    11    11    27 |
gfz | gfz 2972 |    11     9    34 |     9    16    35 |    17    23    81 |
grg | grg 2976 |    16    17    48 |    12    22    42 |    11    10    35 |
igr | igr 2973 |    14     9    39 |     9    13    33 |    11    10    30 |
igs | igs 2937 |    13     9    35 |     9    14    37 |    11    11    29 |
jpl | jpl 2880 |    16    12    49 |    10    14    48 |    12    15    27 |
mit | mit 2976 |    15    13    35 |    10    11    38 |    12    14    42 |


Table 6: Earth Orientation Parameters weekly summary.                          
                                                                              
        Weekly mean and standard deviation of Centre ERP, ERP rates and       
        LOD differences with respect to IGS combined values. See Table 7 for  
        the daily summaries.                                                  
                                                                              
        Xpole,Xrt: x pole and x pole rate                          
        Ypole,Yrt: y pole and y pole rate                       
        LOD      : Length Of Day                                               
                                                                              
        AC LOD BIAS    : 10-day mean LOD bias with respect to Bulletin A     
        AC LOD BIAS RMS: RMS of AC LOD BIAS                              
                                                                              
        FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
              for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.2007   GPS week: 2007   MJD: 58293.500-58299.500

                                                         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       4       4     -11     -2 |       7     20
            |      15      11      76      38      4 |       2
emr   uuuuu |      23      24      78     177    -13 |      35     41
            |      18      25     108      79      9 |       4
esa   uuuuu |       9      13     -34      51     -2 |       5     17
            |       8      13      43      16      4 |       2
gfz   uuuuu |      -9      16      37     -63      4 |      12     21
            |      16      15     106     101      4 |       2
grg   uuuuu |      -2      17      34    -162     -1 |      -4     19
            |      10      22      41      46      5 |       3
igr   xxxxx |     -24      14      50     -47      3 |      -5     18
            |      15      11      34      36      3 |       2
irf   xxxxx |      -9      -7     -29     -40      4 |      -2     16
            |       6      12      20      19      3 |       2
jpl   uuuuu |      -3     -25     134      14     -2 |      21     26
            |      19       5      19      36      7 |       2
mit   uuuuu |     -20       1     -86    -103     10 |      17     23
            |       4      14      49      30      3 |       3
ngs   uuuuu |       3     -31     -64      29     -1 |      10     19
            |      37      23     110      79      1 |       2
sio   uuuux |       7       7    -166      22    -17 |      61     65
            |      19      22      91      57      4 |       5


Table 7.2007.0   GPS week: 2007   Day: 0   MJD: 58293.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      10      -6      58      -3      0 |       9     19
emr   uuuuu |      35       4      97     197    -10 |      41     45
esa   uuuuu |       8       9     -77      59      5 |       6     16
gfz   uuuuu |      -4      27     113    -120     -3 |      14     20
grg   uuuuu |      -9      18      49    -158     -9 |       2     15
igr   xxxxx |     -45      12     -13     -79     -1 |      -3     15
irf   xxxxx |      -7     -19      -6     -63      5 |      -1     13
jpl   uuuuu |     -27     -26     123     -26      6 |      23     26
mit   uuuuu |     -18      -6     -13    -139     14 |      16     22
ngs   uuuuu |       3       4    -264     120     -2 |      14     20
sio   uuuux |      11       0     -79     -14    -15 |      69     71

Table 7.2007.1   GPS week: 2007   Day: 1   MJD: 58294.500

                                                         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      23      22      -3     -6 |       6     21
emr   uuuuu |      35      22      54     268    -16 |      38     45
esa   uuuuu |       0     -11     -38      31      1 |       3     18
gfz   uuuuu |     -12      -3      83    -205      5 |      10     21
grg   uuuuu |       3      41      17    -167     -4 |      -3     20
igr   xxxxx |     -15      15      54     -79      0 |      -7     20
irf   xxxxx |     -10     -17     -16     -53      7 |      -4     17
jpl   uuuuu |     -12     -28     120     -11     -5 |      21     26
mit   uuuuu |     -21     -10     -23     -97     11 |      14     21
ngs   uuuuu |      15     -10     -46     128     -1 |       9     20
sio   uuuux |      23      14    -306      10    -12 |      64     68

Table 7.2007.2   GPS week: 2007   Day: 2   MJD: 58295.500

                                                         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 |     -17       0      -6      43     -4 |       6     21
emr   uuuuu |      49       9     109     238     -7 |      38     45
esa   uuuuu |      21      21     -23      50     -3 |       5     18
gfz   uuuuu |     -30      -4      50     -96      4 |      11     21
grg   uuuuu |      16      33      -6    -179      0 |      -4     21
igr   xxxxx |      -3      13      69     -55      6 |      -6     19
irf   xxxxx |      -3      14     -33     -61      5 |      -3     16
jpl   uuuuu |       6     -25     158       8     -2 |      21     26
mit   uuuuu |     -18       9    -103    -137      8 |      15     22
ngs   uuuuu |     -18     -39     -21      16      0 |      10     20
sio   uuuux |      -6      20    -218     -12    -18 |      64     68

Table 7.2007.3   GPS week: 2007   Day: 3   MJD: 58296.500

                                                         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      -7     127     -61     -5 |       5     20
emr   uuuuu |      18      21     112      79    -32 |      36     42
esa   uuuuu |       4      25     -64      34     -1 |       4     17
gfz   uuuuu |      21      33    -158     111      4 |       9     18
grg   uuuuu |       0       3     -31     -96     -4 |      -6     19
igr   xxxxx |     -17      24      47      -8      3 |      -7     19
irf   xxxxx |     -11       2     -53     -29      8 |      -4     15
jpl   uuuuu |      19     -18     118      81      5 |      19     24
mit   uuuuu |     -17       7    -101     -86     13 |      14     21
ngs   uuuuu |     -53     -50      37    -107     -2 |       8     18
sio   uuuux |      25       0    -125      29    -12 |      60     64

Table 7.2007.4   GPS week: 2007   Day: 4   MJD: 58297.500

                                                         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 |      19       5     -65     -19      2 |       6     20
emr   uuuuu |      -4      19     204     143    -12 |      33     41
esa   uuuuu |       9       6     -79      79     -5 |       5     17
gfz   uuuuu |      -5      11     -40     -31      6 |      10     19
grg   uuuuu |     -16     -15      79    -203      1 |      -6     19
igr   xxxxx |     -19      -6     101     -18      5 |      -6     18
irf   xxxxx |     -17     -14     -57     -18      4 |      -2     15
jpl   uuuuu |      21     -19     161      34     -5 |      21     25
mit   uuuuu |     -27      17    -142     -74      7 |      17     23
ngs   uuuuu |     -11     -38      52      14     -1 |       9     18
sio   uuuux |      -8      43    -244     -10    -21 |      59     63

Table 7.2007.5   GPS week: 2007   Day: 5   MJD: 58298.500

                                                         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 |     -22       1    -102      22     -5 |      10     23
emr   uuuuu |      14      16     117      76     -7 |      33     40
esa   uuuuu |       6      23      18      54     -5 |       9     19
gfz   uuuuu |     -20      30      47       2      9 |      14     24
grg   uuuuu |       0      39      68    -110      2 |      -3     21
igr   xxxxx |     -40      28      51      -6     -1 |      -2     20
irf   xxxxx |     -15      -6     -22     -31      0 |       3     18
jpl   uuuuu |      -3     -28     116      17      3 |      24     29
mit   uuuuu |     -18       9    -104    -122      6 |      22     28
ngs   uuuuu |      23     -61     -58      23     -1 |      13     22
sio   uuuux |      26       5    -133       1    -18 |      59     63

Table 7.2007.6   GPS week: 2007   Day: 6   MJD: 58299.500

                                                         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 |     -15      14      -8     -55      5 |       5     18
emr   uuuuu |      17      79    -144     240     -4 |      27     33
esa   uuuuu |      17      16      24      48     -5 |       5     15
gfz   uuuuu |     -15      18     163    -103      5 |      13     22
grg   uuuuu |      -8      -2      61    -221      5 |      -7     19
igr   xxxxx |     -31      12      39     -87      6 |      -5     19
irf   xxxxx |      -1      -8     -15     -26      3 |       0     17
jpl   uuuuu |     -22     -29     141      -8    -13 |      22     26
mit   uuuuu |     -23     -21    -117     -64      8 |      20     27
ngs   uuuuu |      65     -22    -145       8     -1 |      10     18
sio   uuuux |     -21     -29     -59     147    -20 |      53     56


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