[IGSREPORT-23078] Wk 1812 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Thu Oct 16 08:41:32 PDT 2014


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1812   (Sep 28, 2014 - Oct 04, 2014)

Contacts: igs.acc at noaa.gov


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

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

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

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

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

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

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


SOFTWARE:
---------

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

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

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

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

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


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

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

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

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



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

igs1812[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1812[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1812[0-6].cls  IGS GPS clock combination summary report.
igs18127.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18127.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   | BAKO BAKO
                0  |  EMR   | 10 10
                0  |  ESA   | PIMO PIMO TUVA
                0  |  GFZ   | 1 2 6 9 30 1 3 6 30 HOLM MAC1 RESO SCOR STJO THU3
                0  |  GFZ   | TRO1 YELL HOB2 HOLM MAC1 RESO SCOR STJO THU3 TRO1
                0  |  GFZ   | YELL
                0  |  GRG   | BOGT FAA1 GRAZ HOB2 KELY NYA1 BOGT FAA1 GRAZ KELY
                0  |  GRG   | NYA1 RBAY
                0  |  JPL   | ALRT
                0  |  MIT   | 3 3 MDVJ
                1  |  COD   | RBAY RBAY
                1  |  EMR   | 10 3 10 PRDS SFER
                1  |  ESA   | MDVJ
                1  |  GFZ   | 1 2 3 6 9 30 1 3 6 30 CAS1 INVK RESO SFER SOFI THU3
                1  |  GFZ   | TLSE CAS1 DAV1 INVK RESO SOFI THU3 TLSE
                1  |  GRG   | LAMA MAL2 LAMA MAL2 MDVJ TLSE
                1  |  JPL   | MDVJ RBAY
                1  |  MIT   | 3 3 SFER TLSE SEY1 SFER TLSE
                2  |  EMR   | 3 10 3 10
                2  |  ESA   | 32 32 HOB2 SFER CORD HOB2 NAMA SFER TRO1
                2  |  GFZ   | 1 2 3 6 9 30 1 3 6 30 DRAG INVK SFER STJO DRAG INVK
                2  |  GFZ   | SFER STJO
                2  |  GRG   | BOGT FLIN GRAZ MOBS NYA1 NYAL RBAY STJO TLSE XMIS
                2  |  GRG   | GRAZ MOBS NYA1 NYAL STJO TLSE XMIS
                2  |  JPL   | 32 DRAG
                2  |  MIT   | 3 3 MAC1 MONP OPMT RBAY SFER TLSE MAC1 MDVJ MONP
                2  |  MIT   | OPMT RBAY SFER TLSE
                3  |  EMR   | 10 10 HERS TLSE
                3  |  ESA   | HOB2 HOFN NRIL HOFN SEY1
                3  |  GFZ   | 1 2 3 6 9 30 1 3 6 9 30 FAIR INVK KELY SCOR STJO
                3  |  GFZ   | TLSE YELL FAIR INVK KELY YELL
                3  |  GRG   | BRAZ CHUR DRAG GRAZ HOB2 HOFN NYA1 STJO TLSE BRAZ
                3  |  GRG   | CHUR DRAG GRAZ NYA1 NYAL QAQ1 STJO TLSE
                3  |  JPL   | 32
                3  |  MIT   | 3 3 TLSE MDVJ
                4  |  COD   | NICO KARR NICO
                4  |  EMR   | PRDS FAIR PRDS
                4  |  ESA   | NICO MAW1
                4  |  GFZ   | 1 2 3 6 9 30 1 3 6 9 30 FAIR HOLM MCM4 THU3 DAV1
                4  |  GFZ   | MCM4 THU3
                4  |  GRG   | GRAZ GRAZ KARR PALM RBAY
                4  |  JPL   | 8 32
                4  |  MIT   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                4  |  MIT   | 21 22 23 24 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8
                4  |  MIT   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26
                4  |  MIT   | 27 28 29 30 31 32 MOBS MOBS
                5  |  COD   | FAA1 KOUR BRST FAA1 KOUR
                5  |  ESA   | 3 HOB2 MATE HOB2 MATE SEY1
                5  |  GFZ   | 1 2 3 6 9 30 1 3 6 9 30 BOR1 FAA1 GUAM MCM4 RBAY
                5  |  GFZ   | BOR1 CUSV GUAM MCM4 RBAY
                5  |  GRG   | HYDE BRST FAA1 HYDE NYAL
                5  |  JPL   | 32
                5  |  MIT   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  MIT   | 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7
                5  |  MIT   | 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
                5  |  MIT   | 25 26 27 28 29 30 31 32
                6  |  COD   | HOB2 RBAY DGAR HOB2 RBAY
                6  |  EMR   | 32 3 32 THTI THTI
                6  |  ESA   | HOB2 HOB2
                6  |  GFZ   | 1 2 3 6 9 30 32 1 3 6 30 32 BAKE BAKE
                6  |  GRG   | BOGT FAA1 GUAM HOB2 XMIS FAA1 HOB2 XMIS
                6  |  JPL   | 8 18 28 32 GUAM
                6  |  MIT   | 3 25 27 2 3 11 16 25 27 31 MDVJ NRC1

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

 6. The following table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G25 | 2014_10_02 | 2014074 
               G25 | 2014_10_03 | 2014074 

 7. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                2  |  ESA   |  32
                5  |  GRG   |  25

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

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |   -1.2    -.5   -2.4     -42     25      4     .33
       EMR  |   0 |    5.0    7.3    5.3     -20      9     -7     .28
       ESA  |   0 |     .5     .2   -1.7       3      3     63     .06
       GFZ  |   0 |    -.7     .3   -2.5       4    -57      1    -.02
       GRG  |   0 |   16.1     .6  -11.0     -50     42     -4     .63
       JPL  |   0 |    3.2    5.7   12.1     -33     13      3     .15
       MIT  |   0 |    1.6     .9    -.9      -8      7    -28     .33
       NGS  |   0 |   14.9   -1.0   17.7     -23    -86     61     .64
       SIO  |   0 |    7.2   -1.4   12.0      17     23     -7     .30

       COD  |   1 |   -1.3    -.7   -1.9     -61      9     13     .40
       EMR  |   1 |    2.6    5.6    4.9     -25      8     -4     .24
       ESA  |   1 |    1.2     .0   -1.8      13      1     44     .07
       GFZ  |   1 |    -.1     .5   -2.1       3    -75      2    -.06
       GRG  |   1 |    4.5    -.3   -8.8     -27     25     11     .39
       JPL  |   1 |   -1.7    2.1    7.6     -72    -26     16     .60
       MIT  |   1 |   -3.1    3.4    2.6      -8      9    -31     .33
       NGS  |   1 |    5.8   -4.4    8.8     -14    -34     21     .63
       SIO  |   1 |    1.7    -.7   10.5      -6     27      1     .06

       COD  |   2 |   -1.1    -.7   -1.0     -55     13    -10     .10
       EMR  |   2 |    2.1    1.4    3.9     -18     -4      3     .40
       ESA  |   2 |     .2     .7   -1.9      10     -3     50    -.05
       GFZ  |   2 |     .4    -.4   -2.1     -66    -97    -24     .12
       GRG  |   2 |   10.2    2.4   -2.5     -35      7     18     .52
       JPL  |   2 |    2.7   -1.8    8.9     -95     -6      3     .60
       MIT  |   2 |   -1.2    1.6   -1.2      -4      9    -38     .28
       NGS  |   2 |     .8   -2.7    9.0     -14    -18     -1     .48
       SIO  |   2 |    3.8    2.5    4.8     -21      2     11     .19

       COD  |   3 |    -.6    -.1   -1.4     -48     17    -27     .29
       EMR  |   3 |    7.1    9.2    3.8     -15     12     13     .18
       ESA  |   3 |    -.3     .7   -1.9       6    -20     50    -.12
       GFZ  |   3 |     .0     .3   -2.3     -35    -72     -7    -.06
       GRG  |   3 |   11.5    3.9   -2.0     -29     57      7     .53
       JPL  |   3 |    7.9    7.7   11.5    -131     45     79    -.12
       MIT  |   3 |   -1.5    3.6    2.0      -1      9    -34     .19
       NGS  |   3 |    5.4    1.8    7.8       6    -31     29     .51
       SIO  |   3 |    6.1     .8   12.8     -21      4     -4    -.01

       COD  |   4 |   -1.3    -.3   -1.3     -32     13      4     .30
       EMR  |   4 |   10.2    5.8    7.3     -17     17    -12     .24
       ESA  |   4 |     .3     .9   -1.8       2     -5     55    -.06
       GFZ  |   4 |    -.5     .4   -2.6     -15    -64      3     .01
       GRG  |   4 |    5.2    2.9   -2.9     -22     52    -35     .38
       JPL  |   4 |    8.1   11.2   11.5     -81     35    -35     .11
       MIT  |   4 |    3.8    2.2    7.2      -7      6    -33     .23
       NGS  |   4 |    8.0    2.5    8.3       9    -53     58     .69
       SIO  |   4 |    9.9    -.1    9.3     -22     17     10     .16

       COD  |   5 |   -1.2    -.7   -2.1     -44     10     -5     .32
       EMR  |   5 |    5.5    6.7    7.7     -19     11      3    -.01
       ESA  |   5 |     .8     .3   -1.6      -8      3     55    -.07
       GFZ  |   5 |    -.2     .9   -2.4     -19    -77      9     .05
       GRG  |   5 |   10.5   13.5    3.0     -56     22     -7     .17
       JPL  |   5 |   11.8    9.7   14.8     -75    -20      7    -.04
       MIT  |   5 |   -1.9    4.8    1.4      -8      9    -30     .10
       NGS  |   5 |    5.7   -5.3   30.9    -108    -80      8     .27
       SIO  |   5 |    9.3   -3.6   15.2      -7      1      0     .06

       COD  |   6 |    -.5    -.8    -.5     -42     10     -9     .21
       EMR  |   6 |    1.9    3.8    1.6     -13      2     -4    -.02
       ESA  |   6 |     .4     .3   -1.8       5      4     43    -.18
       GFZ  |   6 |     .2    -.9   -2.3     -32    -55    -13     .08
       GRG  |   6 |     .8    7.0    -.2     -27      8    -21     .30
       JPL  |   6 |    5.5    8.9    6.9     -69     -9    -25    -.04
       MIT  |   6 |   -1.8    6.5   -1.6      -7      8    -26     .12
       NGS  |   6 |   10.2    -.2    4.2      17    -45     53     .59
       SIO  |   6 |    7.1     .3   12.4      -9      7      7    -.09


10. As inidicated in the previous remarks, the IGS final orbits are aligned to the
    IGS reference frame by pre-aligning each AC orbit with the 3 corresponding
    SINEX rotations. This approach began 27-Feb-2000 (GPS Week 1051-0; MJD 51601).
    Starting sometime prior to 19-Aug-2012 (GPS Week 1702; MJD=56158), the orbit
    combination procedures used an incorrect sign convention to apply the SINEX
    RX and RY values to the AC orbits.
    
    Also starting 27-Feb-2000 (GPS  Week 1051-0; MJD 51601), the AC orbits were
    pre-aligned using rotations derived from differences between AC and IGS
    combined x and y polar motion. These ERP rotations were intended to
    approximate day-to-day variations of the AC orbital frames when only weekly
    averaged AC TRF rotations were available (For more details, see IGSMAIL
    #2750). With the change to daily SINEX integrations starting 19-Aug-2012, the
    ERP rotations are no longer needed/applied.

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


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1812.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1812.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 2.1812.[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 3.1812.[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 5.1812.0-6). 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 1812 summary.                       (Sep 28, 2014 - Oct 04, 2014)

Table 1.1812.a   GPS week: 1812   MJD: 56928.000-56934.000

         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  249|    1     0     0    19     1    -8   .13   10   10 |    -934    -366     16    112
        |    0     0     1    20    19    11   .03           |     589    1063
emr   79|    0     2     3   -11   -25    22   .18   13   13 |    3492     165     14    135
        |    1     2     0    22     8    11   .02           |    1569    1282
esa  150|    1     0    -2    16    -8     3  -.26   14   13 |    -622     255     12    160
        |    0     0     1    10    16    14   .03           |     899    1538
gfz  196|    0     3     2    18    -7    10   .14   14   12 |      28    -210     15    158
        |    0     1     0    23    17    17   .04           |     536    1013
grg  175|    0     0    -2    -9    27   -18   .26   16   16 |     134    -148     16    136
        |    1     1     4    13    21     7   .03           |     315     605
igr  n/a|    0     0    -1   -13     8   -10  -.14    6    5 |    4981     134     16    105
        |    0     0     0    13    12    14   .01           |    1599    1245
jpl   80|   -2     0    -1   -19     6   -19   .11   13   13 |    3123     179     17    122
        |    1     1     1    17    19    15   .01           |    1672    1286
mit  350|    0    -2     0    -8    -2    -2  -.11   13   12 |      66    -682     28    222
        |    0     0     1    19    23    21   .04           |     877    1804
ngs  229|    0     0     3   -32    35    -6  -.04   13   11 |   -1233     235   1545   3108
        |    1     0     5    64    36    27   .03           |     461     741
sio  475|    0     0    -2     9   -27    11  -.61   15   14 |     ---     ---    ---    ---
        |    1     0     1    14    20    22   .04           |     ---     ---


Table 1.1812.b   GPS week : 1812   MJD: 56928.000-56934.000   

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



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 2.1812.0   GPS week: 1812   Day: 0   MJD: 56928.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  249|    2     0    -2    39   -19   -19   .11   10   10 |    -948    -216     20    123
emr   80|   -1     2     2   -33   -31    22   .21   13   13 |    1576    -269     16    127
esa  150|    2     0    -4    16   -14    19  -.31   13   13 |      90    -500     14    170
gfz  195|    0     4     2    21   -32    -1   .14   14   12 |     183     122     15    158
grg  170|    1    -1    -6   -34    36   -24   .29   15   14 |     289     -10     15    128
igr  n/a|   -1     0    -1   -29   -11   -11  -.13    6    6 |    2796    -115     19     88
jpl   80|   -2    -2    -2   -36    30   -14   .11   13   13 |     962    -288     17    112
mit  350|    0    -2     1   -30     3    18  -.06   13   12 |    -147     387     20    170
ngs  228|    1     0     9    18    47   -20  -.03   12   11 |    -960    -180   1838   2687
sio  466|   -2     0    -2     6   -17    27  -.66   14   13 |     ---     ---    ---    ---

Table 2.1812.1   GPS week: 1812   Day: 1   MJD: 56929.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  249|    1     1     0    17    23     9   .12   11   11 |    -854    -900     16    104
emr   80|    0     0     4   -24   -16    11   .20   13   13 |    1628    1464     14    139
esa  150|    1     1    -2    13    19   -20  -.27   13   13 |    -408    -798     13    191
gfz  198|    0     3     3     5    16    23   .09   14   12 |     204    -337     15    175
grg  176|    0     1    -6    -1    14   -13   .30   16   15 |     126      45     16    126
igr  n/a|    0     0    -1   -17     1   -27  -.14    6    6 |    2974    1677     16    107
jpl   80|    0    -2    -1   -18    -6   -23   .11   13   13 |     985    1780     18    114
mit  350|   -2    -2     1     7   -27    14  -.05   12   11 |    -276     304     23    191
ngs  230|    0     0     1   -46     5   -21  -.03   13   11 |    -846   -1121   1169   3235
sio  476|   -1     0    -2    28   -44    17  -.61   15   13 |     ---     ---    ---    ---

Table 2.1812.2   GPS week: 1812   Day: 2   MJD: 56930.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  250|    2     0     1    25     4   -14   .09   10   10 |    -754     -69     17    106
emr   80|    0     0     3    16   -21     4   .16   13   13 |    3040    -147     14    148
esa  150|    2     0    -3    21     7     6  -.29   25   14 |   -1010     101     13    169
gfz  192|    0     3     2     5   -12     0   .17   14   13 |     412   -1413     14    184
grg  176|    1     0     0   -12    45   -19   .31   15   15 |     106    -518     16    157
igr  n/a|    0     0    -2    -6     6   -14  -.14    6    5 |    4606     110     17    110
jpl   80|   -3     0    -3   -10   -23   -49   .12   13   13 |    2597     244     20    125
mit  350|   -1    -3     1   -26   -15    11  -.09   13   12 |     502    -941     21    183
ngs  231|    0     0     2   -49    36    14  -.05   13   11 |   -1631     199   1786   3371
sio  483|   -1     0    -3    -7   -22    32  -.64   15   15 |     ---     ---    ---    ---

Table 2.1812.3   GPS week: 1812   Day: 3   MJD: 56931.000                            

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  251|    1    -1     0   -20   -12   -21   .14   10    9 |    -745   -1816     13     97
emr   78|    3     5     2   -14   -22    22   .21   13   13 |    3430     593     14    137
esa  150|    1     0     0     2   -24     8  -.25   13   13 |   -2411    3521     11    147
gfz  200|    0     2     3    24    -9     7   .12   13   11 |    -139    -701     14    136
grg  177|    0     0    -6    -7    57   -10   .26   20   17 |     524   -1044     17    127
igr  n/a|    0     0    -1   -17    19    18  -.14    6    5 |    5433     553     15    115
jpl   80|   -3    -1     0   -13     3   -17   .12   13   13 |    3578     636     17    101
mit  350|    0    -3     0    24    10     1  -.10   12   11 |      86   -3402     21    185
ngs  230|   -2     0    -2   -18    30    30  -.06   13   11 |    -717    1009   1404   3198
sio  475|    0    -1    -1    27   -16     6  -.60   15   14 |     ---     ---    ---    ---

Table 2.1812.4   GPS week: 1812   Day: 4   MJD: 56932.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  248|    1    -1     0    17    23    -7   .14   11   10 |   -2176    1665     14    123
emr   80|    1     3     4   -20   -29    36   .16   13   13 |    4021    2039     15    126
esa  150|    1     0     0    18   -15     4  -.28   13   13 |    -733     660     11    150
gfz  199|   -1     2     1     8     5    36   .10   15   12 |   -1070    1727     17    143
grg  177|    0     2    -4    -3    24   -22   .23   17   17 |    -492     857     16    132
igr  n/a|    0     0    -1     7    24   -13  -.15    6    5 |    5953    1526     17    121
jpl   80|   -1    -1    -3   -17    15   -24   .13   12   12 |    4010    1617     18    133
mit  350|    0    -3     0    -7   -36   -13  -.16   13   12 |   -1570    2116     34    176
ngs  230|    0     0     2    19    51   -24   .02   13   11 |   -1896     330   1701   3387
sio  478|    0    -1    -1    -1   -68    29  -.60   15   15 |     ---     ---    ---    ---

Table 2.1812.5   GPS week: 1812   Day: 5   MJD: 56933.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  248|    1    -1    -2    20   -22    -6   .19   11   11 |    -796    -467     15    123
emr   80|    1     0     3    24   -41    36   .16   12   12 |    5537   -1001     14    136
esa  150|    1     1    -1    36   -22    -9  -.22   12   12 |     143    -923     10    133
gfz  201|    0     4     2    66   -23    21   .19   15   14 |     565    -930     15    138
grg  176|    0     0     1     8    18    -9   .22   17   16 |     298    -496     16    117
igr  n/a|    0     0    -3     0     0    -8  -.12    5    5 |    6946   -1317     17     94
jpl   80|   -2     0    -3     5     0    -2   .11   13   13 |    5180   -1149     17    129
mit  350|    0    -1    -2   -19    25   -45  -.15   13   11 |    1132   -1185     49    440
ngs  227|   -1     1    10  -161    94    21  -.04   14   12 |   -1595     365   1531   3247
sio  472|    0     0    -5     0   -10   -28  -.59   14   13 |     ---     ---    ---    ---

Table 2.1812.6   GPS week: 1812   Day: 6   MJD: 56934.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  249|    2     0     0    38    12     0   .15   10   10 |    -265    -760     17    111
emr   80|    0     2     3   -25   -18    25   .19   12   12 |    5212   -1519     16    137
esa  150|    1     0    -3     8   -10    18  -.24   12   13 |     -25    -274     12    166
gfz  193|   -1     1     2    -1     5   -14   .20   14   13 |      47      61     18    174
grg  178|    0     0     3   -17    -6   -28   .24   17   16 |      92     127     16    168
igr  n/a|   -1     0    -2   -28    18   -15  -.14    6    6 |    6159   -1491     16    102
jpl   80|    0     0     0   -46    29    -6   .10   13   13 |    4553   -1582     17    144
mit  350|   -1    -1    -1   -10    18    -4  -.15   12   11 |     738   -2053     31    212
ngs  228|    1     1    -2    12   -20   -43  -.06   16   13 |    -988    1048   1387   2637
sio  478|    0    -1    -2    12   -15    -6  -.54   14   13 |     ---     ---    ---    ---

       
       
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 3.1812.0   GPS week: 1812   Day: 0   MJD: 56928.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   10   13   10   11    5   11   10    8   12    3 |    25   27   25   23   29   19   28   22   24   21    23
   2  |    9   19   13   17   14    5   11   15   11   21    5 |    28   33   26   36   34   26   27   26   27   27    25
  X3E |   20   36   16   28  ---   15  ---   17   28  ---   11 |    34   44   28   27  ---   28  ---   27   32  ---    25
   4  |    6   10   14   11   13    7   11    9    9   17    4 |    27   25   25   25   31   21   28   27   25   26    25
   5E |    9   14   13   15   12    5   20   12   14   11    4 |    28   26   21   27   25   19   24   24   25   14    20
   6  |    7   10   13   12   12    8   11   10   14   12    4 |    33   36   34   30   30   29   35   28   38   31    31
   7  |   12   13   12   13   19    6   13   11   12   14    4 |    41   43   38   41   35   34   40   35   36   32    36
   8  |    8   11   14   11   14    5   10   15   11   22    4 |    20   25   20   20   19   16   21   21   20   27    19
   9  |   15   12   13   16   18    9   14   17   10   23    5 |    94   88   92   82   84   86   89   90   86   94    88
  10E |   14   23   17   14   13    7   12   15   15   13    5 |    49   52   42   47   43   42   46   35   45   43    42
  11  |    8    9   17   12   17    5    9   10   12    9    4 |    53   54   49   53   64   49   56   54   46   48    51
  12  |   15   17    7   19   15    6   21   22   13   13    5 |    32   32   25   38   38   27   32   30   33   27    28
  13  |   11   12   15   11   18    5    9   12   11    8    4 |    29   36   23   31   37   23   30   28   25   20    26
  14  |   11   11   15   14   12    6   12   17   13   14    4 |    29   31   23   31   26   22   28   29   24   20    24
  15  |   11   10   15   16   14    5   13   13   14   14    4 |    38   41   41   39   37   36   42   35   45   37    37
  16  |   10   15   10   21   19    5   14   18   13   16    5 |    34   37   28   42   36   35   33   38   34   33    33
  17  |    9   14   14   15   13    6   14   12   16   18    5 |    27   29   22   31   31   23   28   28   21   22    23
  18E |   10    9   10   14   14    6   10   13   10   10    4 |    33   29   28   34   37   29   31   23   34   24    28
  19  |   12   13   13   17   14    5   11   15   13   16    4 |    27   31   25   30   31   23   29   25   21   21    23
  20E |   10   14   11   11   15    6   11    9   13   12    4 |    38   33   32   37   33   33   31   32   35   17    31
  21  |   10   10   13   13   18    5   10   13   15   13    4 |    35   33   27   40   38   30   32   34   28   30    30
  22E |    8   11    9   14    9    4    9   11   10    8    3 |    30   29   25   29   30   24   29   28   32   19    26
  23  |   15   14   15   13   17    5   13   14   11   14    5 |    26   29   20   25   25   17   23   24   20   13    18
  24  |    8   11   12    9   11    3   10   14   12   11    4 |    21   24   22   22   24   16   23   18   21   18    19
  25E |   11   11   17   12   16    6   16    8   14   10    4 |    28   26   25   23   25   24   28   17   20   18    24
  26  |    8   13   15   12   13    4   11   12   11   12    4 |    21   23   18   22   20   17   19   20   21   17    17
  27  |   11   10   13   10   14    9   11   14    8   13    4 |    38   38   35   37   44   38   43   39   33   35    37
  28  |    9   23   10   13   16    5    9    7   10    8    4 |    34   45   33   37   47   34   34   37   34   30    35
  29  |   12   13   14   18   13    4   14   12   19   17    5 |    34   30   24   39   27   23   27   27   26   23    26
  30  |    9   13   10    7    8    6   16    9   12   11    4 |    27   26   25   22   25   20   32   17   27   20    23
  31  |    7   11   12   16   19    5   10   21    9   16    4 |    25   28   20   29   35   20   26   28   23   16    22
  32E |   10   14   12   12   22    5   13   12   11   11    4 |    88   86   94   82   90   85   84   84   84   89    85
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13   13   14   15    6   13   13   12   14      |T   35   36   31   35   36   30   34   32   32   29    31
 WRMS |   10   13   13   12   14    6   13   12   11   13      |NE  33   34   30   33   34   28   33   31   30   28    29
 MEDI |   10   12   13   13   14    5   11   12   12   13      |MD  30   31   25   31   33   24   30   28   27   24    26

Table 3.1812.1   GPS week: 1812   Day: 1   MJD: 56929.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    7   11   10   12    4   12    9   11   12    3 |    23   24   23   23   26   19   26   21   20   21    21
   2  |    9   23   12   25   15    7   12   13   14   21    5 |    18   29   19   34   24   19   20   20   25   19    17
  X3E |   40   50   32   27  ---   13  ---   37   31  ---   17 |    50   52   33   35  ---   28  ---   39   50  ---    29
   4  |    9    8   12    9   14    7   10    8   11   16    3 |    19   20   19   21   23   16   22   21   18   22    18
   5E |    7   13    9   13   13    6   16   11   11   12    4 |    24   22   17   28   25   19   23   25   26   13    20
   6  |    7    9   12   13   14    5   12   11   13   10    4 |    25   30   25   26   29   23   31   23   29   26    25
   7  |   11   12   12   15   18    6   15   12   11   12    4 |    31   28   22   31   33   23   30   22   25   20    24
   8  |    9   10   14   11   14    7   10   13    9   19    4 |    21   21   19   19   16   15   22   16   18   26    18
   9  |   17   13   12   18   17   10   18   18   14   26    6 |    64   60   58   53   54   56   56   60   54   64    57
  10E |   15   17   15   16   15    7   16   13   14   12    5 |    35   38   35   38   30   36   39   30   39   35    33
  11  |    7    9   16   10   15    3   11    8    9   11    3 |    31   38   31   33   46   32   39   35   34   32    33
  12  |   11   20    8   16   20    5   22   19   13   13    5 |    26   29   22   29   38   25   30   27   32   20    24
  13  |   12   11   15   13   18    6   12   12   11   12    4 |    26   31   20   28   33   19   29   23   19   17    22
  14  |    8   12   15   15   15    6   12   14    8   17    4 |    22   25   24   26   27   20   27   19   25   14    20
  15  |    9   10   15   15   16    5   14   13   18   12    4 |    26   33   27   32   31   24   32   29   31   24    27
  16  |    6   20   12   19   19    8   13   19   16   15    5 |    42   43   37   43   42   38   39   42   42   36    39
  17  |   17   14   13   12   12    7   13   14   12   19    5 |    28   27   22   27   25   22   26   24   22   18    21
  18E |   10    9    7   12   16    6   11   12   11   12    4 |    31   28   26   32   34   25   26   22   30   17    25
  19  |   11   13   14   15   16    5   10   12   13   17    4 |    21   27   20   26   27   18   24   22   23   17    19
  20E |    9   13    9   14   19    7   12    8   10   12    4 |    36   33   32   38   31   32   32   35   35   20    31
  21  |    9   11   15   14   17    6   11   16   12   15    4 |    25   26   20   31   31   19   24   27   22   18    21
  22E |    8   10    9   11   14    4    9    7   11   11    3 |    23   24   22   26   31   21   25   25   27   13    22
  23  |   15   13   15   14   18    8   13   15   10   15    5 |    26   27   20   24   24   16   25   20   16   13    17
  24  |    8   10   11   14   11    6   12   13   13   14    4 |    18   23   21   21   22   16   23   19   24   15    18
  25E |   10   11   14   12   18    5   13    8   17   12    4 |    22   22   23   20   21   20   24   16   24   19    19
  26  |    6   10   11   13   10    5   10    9   14   10    3 |    20   21   17   23   18   15   17   21   19   17    17
  27  |   13    8   17   14   17    7   11   14   13   14    4 |    28   25   23   25   36   23   33   27   27   25    26
  28  |    6   19   10   10   16    5   14    8   15    8    4 |    40   39   34   39   43   36   35   38   39   32    35
  29  |   17   13   11   18   16    7   17   12   17   18    5 |    28   26   22   28   26   17   24   22   22   14    20
  30  |    7   10   11    7    9    5   15    7    6   12    3 |    22   21   23   20   26   18   30   17   19   21    20
  31  |   17   13   15   21   20    7   13   13   15   16    5 |    31   26   19   27   32   17   24   24   25   15    20
  32E |    8   13   13   14   20    6   16   13    9    9    4 |    67   68   64   69   69   65   67   62   62   69    65
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   13   13   14   16    6   13   12   13   14      |T   29   30   26   30   31   24   29   27   28   23    25
 WRMS |   11   13   13   12   15    6   13   11   11   13      |NE  26   28   23   27   29   21   27   24   24   21    22
 MEDI |    9   12   12   14   16    6   12   12   12   12      |MD  26   27   22   28   30   20   26   23   25   20    21

Table 3.1812.2   GPS week: 1812   Day: 2   MJD: 56930.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   11   14   13   11    4   10   10    8   11    3 |    21   23   20   21   25   16   25   20   17   19    19
   2  |   11   15   12   20   13    7   12   13   14   26    5 |    23   25   21   34   26   22   24   23   23   27    20
  X3E |   59   41   17   28  ---   18  ---   18   38  ---   17 |    61   36   22   29  ---   23  ---   20   32  ---    20
   4  |    6   10   14    7   14    4    7    9    8   14    3 |    19   22   23   20   24   18   23   23   18   23    20
   5E |   10   12   10   17   14    6   18   13   14   10    4 |    25   22   16   27   23   19   23   26   24   18    20
   6  |    8    8   12   12   12    6   16   12   15   10    4 |    27   33   30   26   30   22   31   24   25   27    26
   7  |   11   12   14   19   17    4   13    7   12   14    4 |    27   28   25   33   33   22   28   22   23   18    23
   8  |    9    9   16   11   15    6    9   10   10   24    4 |    20   21   22   18   19   15   21   18   16   29    18
   9  |   16   11   10   18   17    9   15   18   17   26    6 |    68   70   69   58   65   65   75   73   64   78    68
  10E |   18   19   16   14   14    8   14   13   21   13    5 |    29   34   27   27   26   28   34   25   35   33    27
  11  |    8    9   15    9   15    4   10    8    9    7    3 |    39   44   40   43   49   40   46   43   43   42    42
  12  |   13   18   10   18   17    6   23   21   17   14    6 |    33   34   32   39   40   32   36   30   41   28    31
  13  |    9   12   15   13   17    4   10   11   13   12    4 |    26   31   23   33   36   21   29   23   23   16    24
  14  |    8   12   15   14   15    5   13   14   10   15    4 |    24   29   23   25   27   20   26   20   20   16    20
  15  |    8   11   18   15   17    6   17   15   15   12    5 |    29   32   30   33   30   26   32   29   31   27    28
  16  |    9   17   11   17   15    3   11   15   13   14    4 |    35   37   31   38   37   32   36   38   34   33    33
  17  |    9   13   12   10   11    6   12   11   13   15    4 |    22   26   21   24   26   20   27   24   19   20    20
  18E |   11    9    9   12   15    6   12   12   17   10    4 |    26   22   20   27   29   20   22   14   30   12    20
  19  |   13   13   12   13   16    4   10   14   11   17    4 |    21   26   21   23   24   18   25   21   17   18    18
  20E |    8   14    7   13   19    4   10    8   12   11    4 |    32   30   27   34   30   27   30   28   28   19    27
  21  |    8   11   14   16   19    6   10   18   18   15    5 |    24   27   22   32   30   22   25   26   21   21    21
  22E |    8   14    8    8   11    5   10   11   13   10    3 |    23   23   21   25   27   20   23   21   28   13    20
  23  |   10   15   15   14   16    6   15   14   14   18    5 |    23   28   22   25   26   16   26   21   15   13    18
  24  |    8    8   14   13   12    6   14   13   12   13    4 |    17   21   20   21   24   15   23   21   20   20    18
  25E |    8   13   15   10   20    6   13   12   12    9    4 |    23   19   18   17   22   17   20   13   22   15    19
  26  |    9   11   12   17   15    5   10   10   11   10    4 |    18   19   15   22   21   14   14   20   19   17    15
  27  |    9    8   14   16   12    6   12   12   11   16    4 |    32   28   26   33   36   29   37   29   28   30    29
  28  |   11   10   11   14   12    6   12    9   10    7    3 |    30   32   29   35   39   29   30   31   34   26    30
  29  |   10   12   15   17   14    4   14   14   10   17    5 |    23   23   21   30   21   17   25   22   16   18    19
  30  |    8    9   11   10    9    4   16    8   10   11    3 |    20   21   24   20   27   18   31   19   19   21    20
  31  |   10   13   12   16   16    5   12   12   14   16    4 |    22   24   16   23   32   15   24   21   21   16    18
  32E |   11   20  123   12   18    8   14   17   17   11    5 |    87   95  168   90   93   89   91   92   87   91    90
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13   25   14   15    6   13   13   13   15      |T   29   30   29   30   32   25   31   27   27   25    26
 WRMS |   10   13   14   13   15    5   13   12   11   15      |NE  25   28   25   28   30   22   29   25   23   24    24
 MEDI |    9   12   14   14   15    6   12   12   13   13      |MD  24   27   22   27   27   20   26   23   23   20    20

Table 3.1812.3   GPS week: 1812   Day: 3   MJD: 56931.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    9   11   11   13    3   11    9   11   14    3 |    20   24   21   18   26   16   26   20   15   19    19
   2  |    9   18   14   18   17    4   13   12   10   23    5 |    28   30   27   34   36   26   28   27   29   26    26
  X3E |   15  ---   20   17  ---   39  ---   12   41  ---   11 |    39  ---   38   27  ---   36  ---   30   51  ---    29
   4  |    8    9   11    8   16    4    9    8   11   14    3 |    20   22   22   21   29   18   24   23   21   22    21
   5E |   10   13    9   13   20    6   18   11   14   13    4 |    28   28   21   26   25   21   24   26   26   22    23
   6  |    8   10   11   10   15    6   11   11   11   11    3 |    25   34   29   25   28   24   34   24   28   30    27
   7  |    7   13   13   17   17    4   13    9   11   14    4 |    24   26   18   28   30   16   24   19   20   14    20
   8  |    6    9   15   11   15    5    8    8   10   19    4 |    22   25   24   22   21   20   25   20   21   28    22
   9  |   15   18   13   18   22    9   14   16   13   26    6 |    74   77   77   68   70   74   79   81   77   85    75
  10E |   15   18   16   12   54    7   14   15   23   15    7 |    34   39   33   33   57   33   37   29   40   38    33
  11  |    8   10   16   10   18    4   10   10   10   12    4 |    42   47   39   42   57   41   49   45   45   40    43
  12  |   13   19    8   17   19    9   21   17   14   13    5 |    52   55   46   56   52   46   54   50   51   48    49
  13  |    9   12   15   13   19    3   10    9    9   12    4 |    27   32   23   33   38   23   29   25   20   19    25
  14  |   12   14   16   12   16    4   12   16   16   17    5 |    23   28   24   27   26   21   26   23   28   20    21
  15  |   12   13   15   12   17    8   12   15   13   12    4 |    28   37   34   34   32   30   35   30   34   30    31
  16  |    7   16    9   15   23    6   12   14   11   12    4 |    40   43   37   43   47   40   42   43   43   38    40
  17  |   10   13   13   11   15    6   16   14   11   16    4 |    27   32   24   29   32   25   30   30   26   24    25
  18E |    9   11    9   11   14    8   11   13   13   11    4 |    28   27   26   31   29   26   24   21   26   18    24
  19  |   10   14   13   16   17    3   13   12   13   16    4 |    23   29   24   26   27   21   28   24   26   20    22
  20E |    8   11    8   10   16    4   12   11   12   12    4 |    32   33   31   35   27   29   30   35   31   22    30
  21  |    7   12   16   15   17    5    9   15   18   16    5 |    28   29   23   32   34   23   27   26   29   23    25
  22E |   11   18   10   10   13    4    9   14   12   11    4 |    26   29   23   26   28   22   26   25   27   15    23
  23  |   12   15   15   15   21    5   14   12   14   18    5 |    22   27   20   26   28   15   24   20   17   14    18
  24  |    7   10   11   10   12    4   11   10   11   13    3 |    19   26   21   19   24   18   25   19   20   16    19
  25E |    7   11   14   10   17    4   11   11   11    8    4 |    20   22   21   18   23   20   21   16   22   17    19
  26  |    9   10   11   12   15    7   12   11   17    9    4 |    17   21   18   22   21   16   18   23   24   20    18
  27  |   16   11   14   16   16    7   10   13   14   17    5 |    34   33   27   30   38   29   38   34   33   31    32
  28  |    8   12    9   10   17    4   11    9   12    9    3 |    35   37   33   36   44   31   34   35   35   29    34
  29  |    8   13   13   13   16    6   15   18   16   17    5 |    30   31   29   31   33   25   30   31   26   26    27
  30  |    6    9   10    8   10    5   15    7    8   13    3 |    20   26   23   19   26   18   29   18   22   21    21
  31  |   10   14   15   12   22    5   11   11   14   15    4 |    26   28   22   24   34   19   27   23   27   21    22
  32E |   13   15   13   12   25   10   17   15   19   15    5 |    89   89   98   84   85   88   85   87   88   87    87
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13   13   13   20    6   13   12   13   15      |T   31   34   30   32   35   28   33   30   32   28    29
 WRMS |    9   13   13   11   17    5   13   11   11   14      |NE  27   31   27   29   32   24   31   27   28   26    26
 MEDI |    9   13   13   12   17    5   12   12   12   14      |MD  27   29   24   28   30   23   28   25   27   22    25

Table 3.1812.4   GPS week: 1812   Day: 4   MJD: 56932.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    9   12    7   14    4   12    8    9   11    3 |    22   23   21   20   24   18   25   19   23   18    20
   2  |    8   13   15   21   14    6   10   15   13   23    5 |    22   24   21   35   30   23   24   27   26   27    21
  X3E |   31   27   18   21  ---   24  ---   18   34  ---   11 |    49   38   33   36  ---   34  ---   25   33  ---    29
   4  |   11    9   12    8   15    5   10    9   10   13    3 |    24   21   22   25   26   20   21   21   22   18    21
   5E |    9   15   11   14   17    5   15   16   15    9    5 |    20   22   16   28   16   16   20   23   28   14    17
   6  |    8    9   15   11   14    6   12   11   10    9    4 |    23   28   27   23   28   23   29   24   27   25    24
   7  |   10   13   14   16   19    4    9    8    9   14    4 |    25   23   18   26   30   18   20   18   24   15    19
   8  |    9   11   15   12   17    6   11   10   10   22    4 |    20   21   21   21   18   16   20   14   18   29    18
   9  |   15   13   11   19   19    9   13   16   13   29    6 |    66   68   67   60   61   62   71   72   63   77    66
  10E |   16   24   17   17   12   10   16   12   24   13    6 |    30   40   27   29   38   28   38   27   36   39    29
  11  |   10   10   15   13   19    3   11    9   12   14    4 |    40   42   38   40   54   38   44   40   36   37    39
  12E |   11   16    8   23   18    7   21   14   14   13    5 |    21   27   19   28   26   18   27   19   24   25    19
  13  |    9   12   15   15   20    6   10   10   12   14    4 |    26   31   22   33   34   21   27   22   21   19    23
  14  |   14   12   16   13   14    5   11   15   11   15    4 |    28   25   22   25   25   21   23   25   28   21    22
  15  |    9   10   15   15   14    5   15   14   12   13    4 |    28   32   29   33   29   25   33   27   32   28    28
  16  |    7   20   10   19   21    7    8   16   14   14    5 |    75   77   73   80   77   74   77   81   82   77    77
  17  |   12   13   15    9   15    5   12   13   12   17    4 |    24   28   23   28   30   22   28   27   25   23    23
  18E |   11   12    8   12   15    6   11   12   14   13    4 |    26   22   19   27   22   21   21   16   33   13    20
  19  |   12   14   13   14   18    4   11   14   11   16    5 |    20   27   23   27   28   20   25   26   23   20    21
  20E |    9   10    8   11   17    5   11   10   15   15    4 |    32   30   27   31   26   26   26   31   30   22    27
  21  |    7   10   15   17   17    6   11   13   18   17    5 |    22   27   21   33   33   22   25   21   25   17    22
  22E |    9    9    8   11   13    5    8   13    8   12    3 |    25   24   21   24   26   20   22   23   29   11    21
  23  |   13   14   14   16   24    6   15   14   16   21    5 |    23   27   20   23   25   16   25   19   15   16    17
  24  |    6   10   13   12   13    5   11   10   12   11    3 |    16   20   18   18   23   13   23   19   21   14    17
 X25E |    3  ---  ---  ---  ---   18  ---  ---  ---  ---    0 |    25  ---  ---  ---  ---   12  ---  ---  ---  ---    26
  26  |    7    7   12   16   10    6    8   14   13   10    4 |    16   19   16   28   19   15   16   23   17   18    16
  27  |    7   11   13   14   12    6   12   11    6   19    4 |    26   28   24   32   35   26   35   30   30   29    28
  28  |   11   12   11    8   19    4   12    9    9    7    4 |    53   55   51   58   63   50   51   54   49   50    52
  29  |   11   14   17   20   12    7   14   19   13   16    5 |    25   29   22   35   28   22   30   35   28   25    26
  30  |    9    9   11    8   13    5   11   10   10   12    3 |    20   22   23   21   27   19   26   18   21   21    20
  31  |   12   11   15   14   20    4   11   11   17   17    5 |    23   26   20   22   31   18   25   21   29   20    21
  32E |   18   18   14   15   22    6   18   14   18   14    6 |    73   80   79   79   78   75   78   75   76   77    75
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   13   13   15   17    6   12   13   13   15      |T   30   32   28   33   33   26   31   29   31   28    28
 WRMS |   10   13   13   12   17    5   12   12   11   15      |NE  25   28   24   28   30   22   28   26   26   24    24
 MEDI |    9   12   14   14   15    6   11   13   12   14      |MD  25   27   22   28   28   21   25   24   28   21    22

Table 3.1812.5   GPS week: 1812   Day: 5   MJD: 56933.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    9   12    9   11    4   14    8   13   12    3 |    24   23   22   21   26   18   25   19   24   19    20
   2  |   10   13   14   23   13    4   11   15   15   24    5 |    25   26   24   33   24   21   23   28   26   27    21
  X3E |   35   30   19   24  ---   22  ---   21   50  ---   14 |    55   40   32   34  ---   36  ---   33   54  ---    33
   4  |   10    9   12    8   14    4    9    9   15   13    4 |    23   21   22   21   22   19   19   20   22   19    19
   5E |   11   14   10   18   13    5   16   19   15    8    5 |    28   26   20   26   25   19   24   28   24   17    21
   6  |    9    9   11   12   13    4   14   13   16   10    4 |    27   32   26   23   29   21   32   23   28   25    25
   7  |   11   12   12   16   19    4   11   10   11   14    4 |    26   25   20   27   30   17   23   18   25   11    19
   8  |   10    8   12   12   17    8    9   11    9   20    4 |    20   20   20   18   17   16   19   18   22   26    18
   9  |   16   13   11   20   17    9   16   13   14   28    6 |    60   58   59   55   55   57   66   65   62   72    60
  10E |   17   20   16   14   26    7   11   11   28   12    6 |    35   39   30   34   38   31   36   29   39   38    31
  11  |    7    8   15   10   14    4   10    9   14    9    4 |    37   39   35   36   42   34   39   34   32   31    34
  12E |   11   19    6   14   18    5   18   14   17   12    5 |    28   32   23   28   31   23   30   19   37   21    24
  13  |   13   11   14   14   20    6   10   10   13   12    4 |    27   29   20   26   32   18   27   16   22   13    20
  14  |   13   11   15   15   19    4   14   16   17   12    5 |    25   26   21   27   26   19   27   24   33   19    21
  15  |   12   11   14   13   17    5   14   13   19   13    5 |    31   30   28   29   28   24   28   24   26   21    24
  16E |   22   13    8   18   19    8    9   18   13   14    5 |   102   97   97  106  100   95   99   98  102  100    99
  17  |   11   14   13   14   12    4   13   14   15   18    5 |    24   28   22   26   24   20   27   27   26   20    21
  18E |    8   13    9   13   18    5   14   13   15   12    4 |    27   25   23   31   24   23   29   20   31   17    22
  19  |   12   13   12   17   15    4   10   12   13   15    4 |    22   26   22   20   21   17   24   19   23   17    18
  20E |    9   11    6   11   15    5   11    9   10   10    3 |    29   28   25   30   24   25   26   28   33   17    25
  21  |    9   11   13   18   19    5   12   11   13   16    4 |    26   28   23   32   33   21   28   20   24   20    22
  22E |    8   10    9    9   17    4    9   13   13    9    3 |    25   26   22   28   24   22   28   25   32   15    22
  23  |   12   13   13   16   20    5   15   15   13   18    5 |    24   27   20   23   25   15   24   18   23    9    16
  24  |   11    9   11    8   18    5   11    7   13   11    4 |    21   22   21   19   25   16   24   17   22   18    18
 X25E |    7    9   13   11   96    6  ---    8  ---    8    4 |    13   15   12   11   83   13  ---   15  ---   17    16
  26  |   11   11   12   17   13    6   11   17   12    9    4 |    16   18   15   22   16   12   15   22   21   14    13
  27  |    6    7   16   21   13    5   11    9   10   16    4 |    30   27   25   30   32   25   34   28   29   31    27
  28  |   11   10    9   14   18    8   14   10   11    7    4 |    97   98   97   95   94   97   96   99   92   97    96
  29  |   12   13   12   15   15    7   14   21   12   16    5 |    27   27   22   28   21   19   26   29   24   21    21
  30  |    9   10   11   11   14    5   13   10   10   12    4 |    23   23   25   23   27   20   25   20   24   21    21
  31  |   12   12   12   16   22    4   14   12   11   14    5 |    22   26   18   23   32   17   25   23   28   18    20
  32E |   11   17   11   10   15    5   15   13   20   12    5 |    64   69   73   69   66   68   72   69   68   70    66
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   12   12   15   17    5   13   13   14   14      |T   33   33   30   32   35   28   34   30   34   28    29
 WRMS |   11   12   12   14   16    5   13   11   12   13      |NE  26   27   24   26   27   21   27   24   26   22    22
 MEDI |   11   11   12   14   17    5   12   12   13   12      |MD  26   27   22   27   27   20   27   23   26   20    21

Table 3.1812.6   GPS week: 1812   Day: 6   MJD: 56934.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    6   12   10   13    5   14    8   17    9    3 |    24   27   23   24   26   20   26   20   25   19    22
   2  |    8   12   14   17   15    5   13   17   11   24    5 |    27   30   25   38   32   27   28   31   22   30    26
  X3E |   23   27   18   18  ---   34  ---   33   53  ---   13 |    37   36   28   39  ---   40  ---   34   56  ---    29
   4  |    7    6   11    8   15    5   10   11   14   12    3 |    25   22   24   26   27   21   22   26   19   24    23
   5E |    9   12    9   13   13    6   15   12   13    9    4 |    33   30   25   32   30   26   27   32   28   20    27
   6  |    7    9   13    9   14    5   11   13   11   10    3 |    32   38   34   32   34   30   37   28   37   34    32
   7  |    8    8   12   14   20    5    9    9    9   14    4 |    26   25   19   31   30   18   22   20   20   14    21
   8  |    9    8   12   10   17    6   10   11    9   18    4 |    19   23   19   20   19   16   21   21   19   26    19
   9  |   17   12   12   18   16   11   17   17   14   31    6 |    83   85   85   75   76   79   83   87   81   96    83
  10E |   11   21   18   14   12    8   13   12   32   11    6 |    34   41   32   35   34   34   39   33   44   38    34
  11  |    8    8   14    8   18    4   11   10   20    8    4 |    51   52   48   51   62   50   54   52   41   47    50
  12E |   13   18    8   17   19    8   24   13   17   12    5 |    28   30   23   31   31   23   29   23   32   23    24
  13  |    9   11   14   14   20    6   10    9   12   13    4 |    29   35   24   34   39   24   33   25   25   17    27
  14  |   12   12   15   17   17    7   13   13   12   15    5 |    34   33   25   36   33   27   30   33   30   27    29
  15  |    9   10   13   12   17    6   13   10   14   11    4 |    35   34   34   34   32   31   35   30   38   31    32
  16E |   10   14    9   18   20    7   13   15   14   11    5 |    47   50   44   54   54   48   51   56   48   49    49
  17  |   10   14   15   14   12    4   11   13   15   18    4 |    26   31   22   32   31   25   29   33   28   27    26
  18E |    9   10   11   11   12    6   11   11   13   12    4 |    31   24   26   33   26   24   26   19   27   17    24
  19  |   14   11   12   12   17    4   14   13   16   15    4 |    23   28   25   27   30   21   29   27   19   22    23
  20E |    9    9   10   12   17    4   13   12   16   12    4 |    33   32   29   37   30   30   31   35   36   18    30
  21  |    7   13   13   16   21    6   14   10   15   14    4 |    31   30   28   39   40   28   29   29   28   24    28
  22E |    9    9    8   11   12    5   10   10   10   15    3 |    30   25   23   32   29   23   26   29   25   19    25
  23  |   12   12   15   13   20    6   11   16   13   16    5 |    24   29   20   28   31   19   26   25   21   13    21
  24  |    7    9   13   12   19    5   13    5   16   14    4 |    20   23   21   23   26   16   24   18   20   21    19
  25E |    6   12   13   14   21    4   13    9   15   11    4 |    11   17   14   15   25   10   16   17    8   17    12
  26  |    7    8   13   12   17    6    8   12   12    9    3 |    21   22   19   24   26   17   18   25   20   19    19
  27  |   13    9   12   14   16    6   12   11   17   21    5 |    37   35   32   35   45   36   43   39   33   37    35
  28E |   10    8   10   17   14    8   10   11   12    7    4 |    91   93   90   95   93   91   89   96   87   92    91
  29  |   10   13   15   16   14    6   15   17   18   15    5 |    29   27   27   34   27   25   28   32   26   27    26
  30  |    8    7   12    9   14    7   14   11    9   10    3 |    24   25   24   22   25   20   28   21   22   23    22
  31  |   12   14   13   18   20    8   17   12   20   14    5 |    27   29   22   29   34   21   27   27   25   24    23
  32E |   12   15   12   12   20    6   16   14   24   12    5 |    94   94   99   89   93   92   88   91   96   96    92
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12   12   14   17    6   13   12   16   14      |T   34   36   32   37   37   31   35   34   33   31    32
 WRMS |   10   12   13   13   16    6   13   11   13   13      |NE  30   32   28   33   34   27   32   30   28   28    28
 MEDI |    9   11   12   13   17    6   13   12   14   12      |MD  29   30   25   32   31   25   29   29   27   24    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 4.1812   GPS week: 1812   MJD: 56928.0-56934.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3023 |U    5     5    14 |U    7    10    24 |U    8     9    19 |
emr | emr 3030 |     8     7    19 |U    7     9    24 |     9     9    19 |
esa | esa 3058 |     6     6    15 |U    7    10    25 |     8     8    18 |
gfz | gfz 3047 |U    6     6    16 |U    7     8    25 |U    8     9    20 |
grg | grg 2962 |     8     7    19 |U    9    10    34 |U   10    11    20 |
igr | igr 3007 |     6     5    14 |     6     9    23 |     9     9    19 |
igs | igs 3032 |     6     6    14 |     7     9    24 |     8     9    18 |
jpl | jpl 2941 |     7     7    17 |     8    11    30 |U    9     9    20 |
mit | mit 3058 |    35    26   102 |U   13    14    43 |U    9    10    21 |



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 5.1812.0   GPS week: 1812   Day: 0   MJD: 56928.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3050 |     5     5    15 |     7    11    21 |     7    10    16 |
emr | emr 3056 |     7     7    19 |     7    10    24 |     8    12    17 |
esa | esa 3072 |     6     5    16 |     7    11    25 |     7     9    15 |
gfz | gfz 3063 |     6     5    18 |     7    10    27 |     7    11    19 |
grg | grg 2976 |     6     6    16 |     9    12    35 |     7    13    17 |
igr | igr 3050 |     5     5    15 |     6    10    24 |     8    10    15 |
igs | igs 3050 |     5     5    15 |     6    11    24 |     7    11    15 |
jpl | jpl 2971 |     7     6    17 |     7    13    28 |     8    11    16 |
mit | mit 3072 |     6    10    42 |     7    12    25 |     7    10    16 |

Table 5.1812.1   GPS week: 1812   Day: 1   MJD: 56929.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3060 |     5     7    14 |     7     9    22 |     8    11    26 |
emr | emr 3059 |    10     9    21 |     7     8    19 |    10    13    30 |
esa | esa 3072 |     5     8    17 |     7    11    21 |    10    11    27 |
gfz | gfz 3063 |     6     8    18 |     7     8    24 |    10    13    28 |
grg | grg 2976 |     8     7    16 |     9     8    35 |    10    15    29 |
igr | igr 3039 |     6     8    15 |     6     9    22 |     9    13    26 |
igs | igs 3053 |     6     8    15 |     6     9    23 |     9    12    27 |
jpl | jpl 2972 |     6     9    19 |     7    10    25 |    10    12    31 |
mit | mit 3072 |    18    12    48 |     6    12    25 |     9    15    28 |

Table 5.1812.2   GPS week: 1812   Day: 2   MJD: 56930.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2949 |     7     5    18 |     5    10    18 |    11    11    21 |
emr | emr 3059 |     8     6    23 |     6     8    18 |    10     9    18 |
esa | esa 3072 |     7     4    17 |     5     9    19 |     9     9    17 |
gfz | gfz 3060 |     7     4    20 |     5     7    17 |    11    10    20 |
grg | grg 2976 |     7     6    16 |     7     7    25 |    11    12    17 |
igr | igr 3012 |     7     4    20 |     4     6    16 |    13    13    23 |
igs | igs 3045 |     6     4    17 |     5     7    14 |     9    10    17 |
jpl | jpl 2970 |     7     5    21 |     6     7    17 |    11     9    18 |
mit | mit 3072 |    14    32   159 |     6     8    18 |    10    12    19 |

Table 5.1812.3   GPS week: 1812   Day: 3   MJD: 56931.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |     3     5    10 |     4     5    21 |     7     8    20 |
emr | emr 2967 |     6     6    21 |     5     7    18 |     9    10    19 |
esa | esa 3072 |     5     6    13 |     5     6    18 |     7     7    16 |
gfz | gfz 3061 |     5     6    14 |     5     6    20 |     7     6    18 |
grg | grg 2976 |     7     6    20 |     9     7    27 |    11    12    24 |
igr | igr 3030 |     4     6    12 |     4     4    18 |     7     8    19 |
igs | igs 3052 |     4     5    13 |     6     5    21 |     7     8    18 |
jpl | jpl 2967 |     6     7    16 |     5     7    21 |     8     8    18 |
mit | mit 3072 |    12    14    31 |     7     6    24 |     8     7    19 |

Table 5.1812.4   GPS week: 1812   Day: 4   MJD: 56932.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2955 |     7     5    12 |     8     9    28 |     7     6    21 |
emr | emr 2960 |     8     7    13 |     7     9    26 |     9     8    18 |
esa | esa 2976 |     8     6    12 |     7     8    29 |     8     7    19 |
gfz | gfz 2964 |     7     5    12 |     7     7    26 |     8     7    20 |
grg | grg 2880 |    12     9    18 |    12    10    43 |    11    11    22 |
igr | igr 2880 |     8     5    12 |     7     9    25 |     7     7    18 |
igs | igs 2956 |     8     5    12 |     8     8    26 |     8     7    17 |
jpl | jpl 2872 |     9     6    14 |     9    15    36 |     9     8    19 |
mit | mit 2976 |    17    15    22 |    36    32   116 |    10    11    26 |

Table 5.1812.5   GPS week: 1812   Day: 5   MJD: 56933.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3047 |     5     4    14 |    11    15    36 |     5     8    14 |
emr | emr 3056 |     8     7    19 |    10    14    38 |     6     7    13 |
esa | esa 3072 |     6     5    15 |    10    16    38 |     7     6    16 |
gfz | gfz 3060 |     7     5    15 |    10    13    34 |     7     7    16 |
grg | grg 2976 |    11    10    28 |    12    16    43 |     8     9    17 |
igr | igr 3041 |     6     4    14 |    10    15    34 |     6     8    13 |
igs | igs 3018 |     6     4    14 |    10    13    36 |     5     6    12 |
jpl | jpl 2869 |     8     7    17 |    10    13    53 |     8     9    17 |
mit | mit 3072 |   130    69   201 |    17    16    62 |     8    11    23 |

Table 5.1812.6   GPS week: 1812   Day: 6   MJD: 56934.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3051 |     5     6    13 |     7     7    22 |     9     8    18 |
emr | emr 3056 |     6     9    16 |     7     9    25 |    10     7    20 |
esa | esa 3072 |     6     7    14 |     7     8    26 |     9     6    18 |
gfz | gfz 3060 |     5     6    13 |     8     7    23 |    10     8    18 |
grg | grg 2976 |     9     9    21 |     9     8    33 |    11     8    19 |
igr | igr 3002 |     6     6    13 |     7     7    22 |    10     6    19 |
igs | igs 3050 |     5     6    12 |     6     7    23 |     9     6    17 |
jpl | jpl 2968 |     6     7    19 |    11    13    31 |    11     6    20 |
mit | mit 3072 |    46    33   210 |     9     9    28 |    10     8    17 |


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

Table 6.1812   GPS week: 1812   MJD: 56928.500-56934.500

                                                         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      -3     -76       3     -2 |      29     36
            |      13      21      49      51      6 |       4
emr   uuuuu |      51     -27     161      96    -18 |      25     37
            |      16      29     135      26     15 |       6
esa   uuuuu |       2     -17      38    -126     -2 |      26     33
            |      19      10      68      62      6 |       4
gfz   uuuuu |       7     -28      81      13     -2 |      18     28
            |      18      19      34      75      6 |       4
grg   uuuxu |     -35      22     -46    -346      1 |      29     36
            |      18      13      51      89      5 |       3
igr   xxxxx |       4       6      22     -48      4 |      -2     21
            |      11      16      67      28      5 |       3
irf   xxxxx |       8      10     -34     -41      1 |       1     18
            |       4      13      42      38      7 |       3
jpl   uuuuu |       8      22      34      96     14 |       8     21
            |      19      20      72      57      6 |       3
mit   uuuuu |     -10       7     -64     -24     -2 |      22     28
            |      14      16      80      65     11 |       3
ngs   uuuuu |     -34      39    -104     -81     -4 |       9     18
            |      43      73     124     135      6 |       4
sio   uuxxx |      16     -10       1     -16     12 |      32     36
            |      16      18      74      62      3 |       3


Table 7.1812.0   GPS week: 1812   Day: 0   MJD: 56928.500

                                                         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     -20     -56     -35      3 |      27     36
emr   uuuuu |      39       6      42      85      7 |      26     37
esa   uuuuu |      -1      -9      -6    -112     -6 |      28     34
gfz   uuuuu |      31      -5      42     -75     -4 |      20     29
grg   uuuxu |     -34      28      26    -203      7 |      30     36
igr   xxxxx |      24      36      92     -46      8 |      -5     23
irf   xxxxx |      15      32     -14     -54      6 |      -2     20
jpl   uuuuu |     -13      30      90     182      8 |       6     20
mit   uuuuu |       2       4     -33     -39      7 |      19     27
ngs   uuuuu |     -47      -1     -78     -20    -13 |      12     20
sio   uuxxx |      12     -26     116      53     15 |      27     32

Table 7.1812.1   GPS week: 1812   Day: 1   MJD: 56929.500

                                                         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 |     -24      -9     -76       5      0 |      32     39
emr   uuuuu |      33      -8      61     119    -14 |      32     39
esa   uuuuu |     -26     -20     -69    -124     -6 |      30     36
gfz   uuuuu |     -17     -12      69     -46     -7 |      22     31
grg   uuuxu |     -29       3     -80    -339     -2 |      33     39
igr   xxxxx |       2      10     -68     -14     12 |      -1     22
irf   xxxxx |       5       2     -15     -37     11 |       3     19
jpl   uuuuu |      29     -15     120     123      3 |       9     22
mit   uuuuu |       0      10       9     -19     14 |      24     30
ngs   uuuuu |      25      56     -11     -61      0 |      13     20
sio   uuxxx |       7      -4      23      41     15 |      31     36

Table 7.1812.2   GPS week: 1812   Day: 2   MJD: 56930.500

                                                         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     -16    -128     -31     -6 |      33     39
emr   uuuuu |      37     -58     248     130    -34 |      31     39
esa   uuuuu |     -13     -13     120    -238     -5 |      29     36
gfz   uuuuu |      27     -26     109      36      1 |      21     31
grg   uuuxu |     -60      32     -42    -423      8 |      31     39
igr   xxxxx |      -1       5      58     -74      7 |       0     22
irf   xxxxx |       4      10      44    -105      4 |       4     18
jpl   uuuuu |      33      27     -58     131     17 |       8     22
mit   uuuuu |       9       4      64    -117      5 |      25     30
ngs   uuuuu |     -31      63    -294     116     -6 |      12     20
sio   uuxxx |      16       5      53       9     13 |      33     37

Table 7.1812.3   GPS week: 1812   Day: 3   MJD: 56931.500

                                                         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      43    -135      54     -8 |      32     38
emr   uuuuu |      52     -63     254      80    -10 |      29     39
esa   uuuuu |      -3      -5     100    -140     -2 |      28     35
gfz   uuuuu |       3     -49     139      46     -6 |      19     30
grg   uuuxu |     -56      16     -68    -334      1 |      30     38
igr   xxxxx |       4     -13      82      -5      1 |       0     22
irf   xxxxx |       6      14     -62     -20      0 |       4     18
jpl   uuuuu |      15       8       8      73     17 |       9     23
mit   uuuuu |      -8      24    -120      -7      0 |      25     30
ngs   uuuuu |     -47       5    -121    -134     -4 |      10     19
sio   uuxxx |      48       2       2      -6     16 |      33     37

Table 7.1812.4   GPS week: 1812   Day: 4   MJD: 56932.500

                                                         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 |     -13      -6      12      79    -10 |      27     33
emr   uuuuu |      60     -39     388      54    -30 |      24     35
esa   uuuuu |      26     -16      72     -97     -7 |      23     30
gfz   uuuuu |      -2     -25      47     -29     -9 |      15     26
grg   uuuxu |     -38      39    -128    -469     -6 |      27     35
igr   xxxxx |       7      -1     -74     -79     -4 |      -4     20
irf   xxxxx |      10      14     -73     -66     -8 |       1     16
jpl   uuuuu |      -3      31     -60     109     20 |       6     18
mit   uuuuu |     -25      24    -134     -89    -13 |      22     26
ngs   uuuuu |     -28      -5    -244     -68      4 |       6     17
sio   uuxxx |      18       5    -110    -122     12 |      32     36

Table 7.1812.5   GPS week: 1812   Day: 5   MJD: 56933.500

                                                         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      -6     -66      17      0 |      22     31
emr   uuuuu |      75     -32      56     100    -31 |      16     34
esa   uuuuu |      12     -35      59    -139      5 |      19     28
gfz   uuuuu |      13     -58      86       6      0 |      10     25
grg   uuuxu |     -11      10     -32    -374     -4 |      24     33
igr   xxxxx |       6      -7      35     -56      4 |      -7     22
irf   xxxxx |       7     -10     -69     -13     -8 |      -3     18
jpl   uuuuu |       5      24      56      16     18 |       6     18
mit   uuuuu |     -24     -22    -147      53    -17 |      18     26
ngs   uuuuu |    -112     188      22     -65     -1 |       2     15
sio   uuxxx |      17     -43     -19     -72     10 |      31     35

Table 7.1812.6   GPS week: 1812   Day: 6   MJD: 56934.500

                                                         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      -5     -82     -66      5 |      27     34
emr   uuuuu |      63       7      79     107    -16 |      16     34
esa   uuuuu |      20     -17      -7     -30      8 |      25     32
gfz   uuuuu |      -7     -20      73     151      9 |      16     25
grg   uuuxu |     -17      30       0    -280      2 |      29     35
igr   xxxxx |     -11      16      26     -61      4 |       0     18
irf   xxxxx |       8      10     -51       7     -1 |       1     16
jpl   uuuuu |     -11      47      81      42     12 |      13     21
mit   uuuuu |     -25       3     -88      53     -7 |      21     27
ngs   uuuuu |       2     -29       1    -332     -8 |       6     16
sio   uuxxx |      -5      -9     -57     -11      6 |      37     40



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