[IGSREPORT-22831] Wk 1796 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Sat Jun 28 19:42:30 PDT 2014


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1796   (Jun 08, 2014 - Jun 14, 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:

igs1796[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1796[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1796[0-6].cls  IGS GPS clock combination summary report.
igs17967.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17967.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  |  ESA   | GUAT IRKJ GUAT IRKJ UNSA
                0  |  GFZ   | 1 2 18 30 1 18 30 BAKE FAIR FLIN KOUC NTUS QAQ1 SCOR
                0  |  GFZ   | YELL YIBL BAKE FAIR FLIN NTUS NYAL QAQ1 SCOR YIBL
                0  |  GRG   | 26 26 FAA1 HYDE IRKJ MAL2 NTUS FAA1 HYDE KOUC MAL2
                0  |  GRG   | NTUS WUHN
                0  |  JPL   | 26
                0  |  MIT   | 6 26 6 26 NRC1 REYK
                1  |  EMR   | WUHN
                1  |  ESA   | UNSA
                1  |  GFZ   | 1 2 30 1 30 CAS1 CHUR IRKJ MDVJ NTUS WSRT WUHN CAS1
                1  |  GFZ   | IRKJ NTUS
                1  |  GRG   | 26 26 KOUC NRIL NRMD NTUS KOUC NRIL NRMD NTUS
                1  |  JPL   | 26 TIXI
                1  |  MIT   | 26 26 IRKJ IRKJ MDVJ
                2  |  COD   | GRAZ
                2  |  ESA   | IRKJ WUHN UNSA
                2  |  GFZ   | 1 2 30 1 30 GRAZ INVK MAL2 MATE WUHN INVK IRKJ MAL2
                2  |  GFZ   | MATE
                2  |  GRG   | 3 26 3 26 FAA1 IRKJ KOUC NRMD SOFI FAA1 KOUC NRMD
                2  |  GRG   | SOFI
                2  |  JPL   | 26
                2  |  MIT   | 6 26 6 26 IRKJ MDVJ
                3  |  EMR   | WUHN WUHN
                3  |  ESA   | MBAR UNSA WUHN
                3  |  GFZ   | 1 6 30 1 6 30 INVK WUHN INVK
                3  |  GRG   | 3 6 26 3 6 26 BOR1 MAC1 MAS1 MAC1 MAS1 SUTH
                3  |  JPL   | 3 26
                3  |  MIT   | 26 10 26 MDVJ
                4  |  COD   | FLIN REUN
                4  |  ESA   | CHUR FLIN HARB IRKJ KERG MAG0 CHUR HARB IRKJ KERG
                4  |  ESA   | MAG0 UNSA
                4  |  GFZ   | 1 2 6 18 30 1 6 18 30 DUBO KERG DUBO KERG
                4  |  GRG   | 3 6 3 6 BOR1 IRKJ ISPA KELY KERG NRMD CHUR DUBO IRKJ
                4  |  GRG   | ISPA KELY KERG NRMD
                4  |  JPL   | 3 26
                4  |  MIT   | 7 10 26 7 10 26 MDVJ PARC TLSE
                5  |  COD   | 3
                5  |  ESA   | 3 NNOR WUHN NNOR UNSA WHIT
                5  |  GFZ   | 1 2 6 30 1 6 30 IRKJ
                5  |  GRG   | 6 3 6 GRAZ KELY KOUC NRMD WUHN GRAZ KELY KOUC NRMD
                5  |  JPL   | 26
                5  |  MIT   | 26 26 IRKJ SPT0 IRKJ MDVJ SPT0
                6  |  COD   | 3 MAW1 MAW1
                6  |  EMR   | WUHN SYOG WUHN
                6  |  ESA   | 3 IRKJ IRKJ UNSA
                6  |  GFZ   | 1 2 6 30 1 6 30 KELY MCM4 WUHN KELY MCM4 WUHN
                6  |  GRG   | 6 6 IRKJ QAQ1 REUN FAA1 IRKJ QAQ1 REUN
                6  |  JPL   | 26
                6  |  MIT   | 12 26 12 26 MDVJ

 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
               ----+------------+----------
               G04 | 2014_06_12 | 2014051 

 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
               ----+--------+---------------
                3  |  GRG   |   6
                4  |  GRG   |   6
                5  |  GRG   |   6
                6  |  GRG   |   6

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

 9. 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.

10. 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 |    -.9    1.0    -.8     -28     16    -41     .35
       EMR  |   0 |    3.5   -1.5   15.3      -2      7    -34     .04
       ESA  |   0 |     .6     .3   -1.5     -10     -7     15     .21
       GFZ  |   0 |    -.1     .3   -1.7     -22    -27    -11    -.11
       GRG  |   0 |    8.5   -5.8   24.9      -5     18    -35     .20
       JPL  |   0 |   -5.2    4.3    5.4     -69     -9     -4    -.16
       MIT  |   0 |    8.1   -4.2   14.4      -7     -1    -68     .25
       NGS  |   0 |   -2.5   -5.0   23.7     -71    -44    -31     .30
       SIO  |   0 |    3.8    -.7   10.8      -9     14    -12    -.02

       COD  |   1 |   -1.0     .0   -1.1     -48     16    -42     .27
       EMR  |   1 |    5.9   -4.7   12.7     -14     14    -62     .06
       ESA  |   1 |     .6     .7   -1.5     -21    -25      8     .12
       GFZ  |   1 |     .3    -.6   -2.0     -22    -29    -21    -.21
       GRG  |   1 |    7.9  -13.9   17.2      12      6    -13     .51
       JPL  |   1 |    1.4   -1.6   13.4     -58     48    -43    -.21
       MIT  |   1 |    8.7   -5.4   15.5       7     -4    -48     .50
       NGS  |   1 |   -2.4   -3.5   32.7     -64    -82    -12     .41
       SIO  |   1 |    6.0   -2.8   27.5      13     -9      1     .10

       COD  |   2 |    -.6     .1   -1.2     -51     15    -54     .24
       EMR  |   2 |    2.0   -4.8   18.8     -12      4    -68     .04
       ESA  |   2 |     .0     .5   -1.3     -18    -22     16     .05
       GFZ  |   2 |     .0     .6   -1.6     -22    -24    -16    -.40
       GRG  |   2 |   14.6   -5.9   26.0      -6     21    -49     .34
       JPL  |   2 |     .1    5.4   16.8      -2     29    -31    -.15
       MIT  |   2 |   12.4   -4.6   19.2       7      5    -49     .40
       NGS  |   2 |   -8.2   -8.9   28.3    -106    -22    -63     .37
       SIO  |   2 |    9.1     .6   18.4       6     40    -21     .10

       COD  |   3 |    -.8     .3   -1.8     -57     21    -31     .34
       EMR  |   3 |    4.5    -.7   17.9       3     20    -69     .15
       ESA  |   3 |     .0     .7   -1.7     -11    -15     28     .11
       GFZ  |   3 |     .0     .8   -1.9     -23    -23     -8    -.23
       GRG  |   3 |   13.4   -8.0   25.2     -24     13    -20     .45
       JPL  |   3 |    2.7    3.9   16.6     -15    -15    -35    -.22
       MIT  |   3 |    5.0   -4.5   19.4      10      5    -33     .22
       NGS  |   3 |    1.3   -2.2   39.7    -135    -94     -5     .43
       SIO  |   3 |    8.3    1.8   20.6      21     42     21     .06

       COD  |   4 |    -.5     .5    -.9     -33     13    -48     .39
       EMR  |   4 |    4.3   -1.0   13.4       7     24    -73     .21
       ESA  |   4 |     .5     .1   -2.0     -13     -9     20     .22
       GFZ  |   4 |     .1     .1   -1.9     -27    -33    -15    -.0 
       GRG  |   4 |    8.8  -14.4   34.7     -12     17    -28     .78
       JPL  |   4 |    1.8    4.8   13.5       1     14    -38    -.0 
       MIT  |   4 |   -1.1   -5.1   20.2      -8      2    -47     .40
       NGS  |   4 |    -.4  -13.8   30.5    -130    -48    -50     .53
       SIO  |   4 |    5.6    2.1   21.1       9     18     14     .26

       COD  |   5 |     .1     .1    -.6     -30      8    -46     .60
       EMR  |   5 |    3.1   -7.9   22.0      -6     10    -71     .27
       ESA  |   5 |     .6     .5   -1.8     -12     -9      2     .26
       GFZ  |   5 |    -.2     .0   -2.1     -24    -38    -18     .20
       GRG  |   5 |   16.7  -12.6   20.1     -20     18    -30     .81
       JPL  |   5 |    3.4   -1.5   14.8     -11      8    -50    -.22
       MIT  |   5 |   -2.1   -6.8   16.6      -3      0    -53     .37
       NGS  |   5 |   -3.5   -4.5   24.3     -88    -11    -31     .57
       SIO  |   5 |    2.5    -.6   32.8      -8    -20      3     .35

       COD  |   6 |    -.3     .4    -.4     -38     20    -64     .37
       EMR  |   6 |    2.8   -1.8   12.7       4     19    -70     .21
       ESA  |   6 |     .0     .9   -1.3     -17     -3      6    -.07
       GFZ  |   6 |    -.2    1.1   -2.1      -6    -32    -16     .01
       GRG  |   6 |   11.5   -6.0   22.4     -12     20    -18     .68
       JPL  |   6 |    1.6    3.0   12.7     -23     26    -34    -.16
       MIT  |   6 |   -3.8   -5.6   18.9       1     -1    -55     .21
       NGS  |   6 |   -2.7   -6.2   21.7     -62     -9    -25     .49
       SIO  |   6 |    1.8    -.3   34.5      22     -2      2     .03


11. 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.

12. 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 1.1796.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1796.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 2.1796.[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 3.1796.[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 5.1796.0-6). 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 1796 summary.                       (Jun 08, 2014 - Jun 14, 2014)

Table 1.1796.a   GPS week: 1796   MJD: 56816.000-56822.000

         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  247|   -1     1    -5     4     3     3  -.00    9    9 |   -1654     280     15    105
        |    0     0     1    11    14     9   .02           |     857     389
emr   80|    1    -3     2   -11   -16    21   .25   13   13 |    4285    -728     17    132
        |    1     2     4    18    16    12   .03           |    1567     600
esa  150|    1     0    -9     1    10    -5  -.38   12   12 |      24    -711     11    159
        |    0     0     1    12    16    13   .03           |     657    1515
gfz  196|    0     0     0    -5     9   -20  -.05   12   11 |     -82     -32     12    131
        |    0     1     0    18    20    29   .02           |     286     571
grg  180|    6    -2    12    17   -17     1   .39   15   15 |      -8    -118     17    149
        |    3     2     2    12    28    14   .08           |     288     594
igr  n/a|    0     0    -4     7    -8    13  -.22    5    5 |    8055    -845     16     83
        |    0     0     0    15    11     8   .03           |    1716     650
jpl   80|   -1     1    -6    39     2    -3   .00   14   14 |    3581    -667     16    108
        |    1     1     2    39    17    15   .03           |    1446     602
mit  300|    0     0     3     8    -1    11  -.10   13   12 |     176    -313     22    214
        |    2     0     1    30    28    13   .07           |     497     585
ngs  230|   -1     0     7   -36     6    -9   .04   12    9 |  -13637    2667   1561   3261
        |    0     0     3    41    27    15   .03           |   31301    6009
sio  467|    0     2    -4   -15    -2    20  -.91   20   18 |     ---     ---    ---    ---
        |    1     1     1    20    18    17   .07           |     ---     ---


Table 1.1796.b   GPS week : 1796   MJD: 56816.000-56822.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1796.0   GPS week: 1796   Day: 0   MJD: 56816.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  248|    0     0    -6    13    16    -5   .01   10    9 |   -1096    -339     15    106
emr   80|    0    -1     0     3   -15    38   .23   12   12 |    6333     177     15    137
esa  150|    2     0    -8    -8    40   -18  -.34   12   12 |     522   -1149     11    154
gfz  188|    0     0     1    -5    -2    -5  -.03   11   11 |     273    -118     12    137
grg  187|    5    -1    14     4    -9    -7   .34   13   12 |      -2     366     15    164
igr  n/a|   -1     0    -4     1   -11     0  -.23    6    5 |   10516     -95     17     86
jpl   80|   -3     0    -5    -8   -23   -27   .01   12   12 |    5590     139     16    116
mit  300|    2     0     5    47    11    36  -.21   15   12 |     -10     330     23    215
ngs  234|   -2     0     3   -48    -3    -9  -.01   14   10 |   -1097    -339   2006   3682
sio  449|    2     2    -3   -15    10    46 -1.03   20   19 |     ---     ---    ---    ---

Table 2.1796.1   GPS week: 1796   Day: 1   MJD: 56817.000                            

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|    0     1    -3   -14    -4    19  -.01   10    9 |   -3378     713     16    108
emr   80|    0    -2    -2    13    -5    14   .29   13   13 |    5554    -833     17    129
esa  150|    1     0    -8     0    15    -7  -.35   12   12 |     648   -2701     12    156
gfz  200|    0     0     0   -14     4     7  -.04   12   11 |     113    -577     13    140
grg  187|    3    -1    10    37   -24    -7   .33   13   13 |     -53      19     15    142
igr  n/a|    0     0    -3    18     0     4  -.23    5    5 |    9712   -1391     18     98
jpl   80|   -1     3    -8    -8    -3    -9   .06   14   12 |    5026   -1163     19    120
mit  300|    1     0     1   -21    -3     3  -.17   13   12 |     242    -633     24    211
ngs  236|   -1     0     9    26    19   -34   .00   12    9 |   -3369     718   1633   3205
sio  476|   -1     1    -5   -22   -35    21  -.94   19   19 |     ---     ---    ---    ---

Table 2.1796.2   GPS week: 1796   Day: 2   MJD: 56818.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  248|    0     1    -4    11    -9    11   .01   10   10 |   -2015     337     16    101
emr   80|    1    -4     0   -34   -34     4   .23   12   12 |    4911    -324     13    115
esa  150|    2     0    -9   -14    -3    -3  -.39   12   13 |     -74     425     12    170
gfz  200|    0     0     0   -31    12   -10  -.07   12   11 |     155     276     13    143
grg  186|    3     0    10    20    21    18   .29   13   13 |    -193     135     16    143
igr  n/a|    0     1    -3   -16    -9    14  -.21    5    5 |    8278    -364     17     89
jpl   80|   -3     0    -6    44    -2     4  -.02   13   12 |    3810    -212     15    111
mit  300|    2     0     3    42    49     1  -.15   14   13 |     -18     -51     20    193
ngs  234|    0     0     6   -15   -12   -17   .05   13    9 |   -2114     544   1456   3152
sio  479|    0     1    -5     9    17    -7  -.91   18   19 |     ---     ---    ---    ---

Table 2.1796.3   GPS week: 1796   Day: 3   MJD: 56819.000                            

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  242|    0     0    -6     0     0     7  -.03    9    9 |   -1388     544     15    113
emr   80|    2    -2     2   -32   -25    22   .24   13   13 |    4975   -1209     17    126
esa  150|    1     0    -9    15    -7    14  -.39   11   11 |     862   -2422     10    152
gfz  194|   -2    -1     0    22    54   -82  -.04   13   11 |     -14     303     13    116
grg  180|    3     0    10     0   -57    16   .33   13   12 |    -183     303     16    144
igr  n/a|    0     1    -4    25     0    24  -.28    5    5 |    8458    -923     16     75
jpl   80|   -2     2    -7    98    20    10   .02   16   16 |    3918    -874     16    101
mit  300|    0     0     1   -32    -5    12  -.10   13   12 |       8     202     22    224
ngs  228|    0     1    10   -31    21    -8   .05   12    9 |   -1384     536   1189   2955
sio  471|    0     2    -4   -39    -8    29  -.92   20   18 |     ---     ---    ---    ---

Table 2.1796.4   GPS week: 1796   Day: 4   MJD: 56820.000                            

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    -6    10    30    -1  -.01   10   10 |   -1708     366     14    110
emr   80|    2    -3     2   -12   -11    10   .29   12   12 |    3294    -421     18    137
esa  150|    2     0   -12    18     4    -9  -.42   11   11 |    -836    1308     12    178
gfz  198|    0     0     0     8    -4   -11  -.07   11   10 |    -310     769     13    130
grg  183|    8    -2    15    24   -37    -4   .47   16   16 |    -354     293     19    146
igr  n/a|    0     0    -5    16     2    23  -.22    5    5 |    7054    -276     17     91
jpl   80|    0     2    -6    65    18    13  -.01   14   14 |    2654    -108     17    106
mit  300|   -2     0     2    19   -25     5  -.04   13   12 |    -315      17     26    228
ngs  230|   -2     0    12  -108     1    13   .04   12   10 |   -1697     391   1521   3330
sio  468|    0     3    -5     8   -12    30  -.81   19   19 |     ---     ---    ---    ---

Table 2.1796.5   GPS week: 1796   Day: 5   MJD: 56821.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  246|   -1     2    -5    -4    -8    -1  -.00    8    8 |   -1183     514     15    100
emr   80|    5    -9    11   -19   -34    33   .23   20   15 |    2950    -849     19    134
esa  150|    1     1   -10    -6     3   -22  -.40   12   12 |    -416     432     11    153
gfz  198|    0     1     1   -19     4   -12  -.05   11   10 |    -487      46     14    135
grg  182|    8    -5    12    11   -31   -19   .49   18   18 |     494    -938     20    153
igr  n/a|    0     1    -5    -6   -15    14  -.21    5    5 |    6770    -978     17     70
jpl   80|   -1     0    -4    61   -12   -15  -.00   15   15 |    2597   -1012     16    105
mit  300|   -3     1     1     0     3    22  -.03   13   12 |    1240    -843     22    213
ngs  227|   -1     0     6   -21    54     5   .08   11   10 |   -1203     551   1778   3625
sio  500|    0     5    -2   -43     3    18  -.83   20   18 |     ---     ---    ---    ---

Table 2.1796.6   GPS week: 1796   Day: 6   MJD: 56822.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  248|    0     1    -4    14     2    -8   .03    9   10 |    -816    -171     16     98
emr   80|    2    -1     2    -1    11    27   .22   11   11 |    1981   -1639     20    148
esa  150|    0     0    -9     5    19     9  -.39   11   11 |    -535    -876     10    151
gfz  198|    0     1     0     1     0   -26  -.06   11   10 |    -306    -928     11    122
grg  161|   12    -6    14    24    14    12   .45   21   21 |     235   -1004     20    157
igr  n/a|    0     0    -3    11   -28     9  -.20    5    5 |    5602   -1893     16     75
jpl   80|   -1     0    -1    23    21    -2  -.03   14   14 |    1475   -1441     18     97
mit  300|   -2     0     4     1   -38     1  -.03   14   13 |      88   -1218     22    218
ngs  227|   -1     0     3   -56   -32   -16   .05   11    9 |  -84601   16273   1344   2884
sio  432|    0     3    -2    -8    11     3  -.92   20   18 |     ---     ---    ---    ---

       
       
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 3.1796.0   GPS week: 1796   Day: 0   MJD: 56816.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   10   15   12   13    6   13    7   16   11    4 |    35   44   35   39   45   35   42   37   38   30    38
   2  |    7    9   13   17   11    6    8   10   13   21    4 |    27   33   28   29   32   25   28   28   29   28    27
   3E |   15   15   12   11   14    8   15   25   13   16    5 |   112  111  112  113  115  109  115  110  109  111   111
   4  |    8    9   11    9    9    5    7   10   11   24    3 |    16   18   16   20   16   19   15   15   16   31    17
   5  |   11   13   14   11   11    7   14   27   13   25    5 |    35   40   37   33   35   30   38   30   26   35    32
  X6  |    9  ---   12  ---  ---   22  ---   13   14  ---    6 |   139  ---  141  ---  ---  139  ---  133  135  ---   137
   7  |    9   10   12   13   14    8   14   19   10   20    4 |    31   33   30   31   36   28   31   31   31   30    30
   8  |    9    8   10   10   14    4    8    8    9   23    3 |    29   30   31   30   32   30   28   27   29   30    29
  10  |    8    8   13    8   14    5    5   10   10   15    3 |    35   38   31   36   44   33   34   39   36   37    36
  11  |    8    9   16    7   15    5   10    8   11   11    4 |    40   49   37   44   54   39   45   42   43   35    43
  12  |    9   19    8   18   13    7   15   11   14   14    5 |    31   34   29   39   34   29   31   30   31   29    30
  13E |    8    8    7    9   10    4   11   11    7   10    3 |    31   31   31   33   37   31   31   28   31   33    31
  14E |    9    9    6   10   13    4   10   13    9   11    3 |    26   29   28   30   34   26   27   27   32   36    28
  15E |    8   14    9   14   14    4   20   18   15   22    5 |    36   40   34   41   42   37   39   38   43   44    38
  16  |    9   16   11   16   12    5   12   16   13   16    5 |    28   31   27   34   32   28   30   31   28   27    28
  17  |   10   12    9    9   14    4   14   15   10   18    4 |    32   34   27   27   35   28   31   22   24   30    27
  18  |    8   11   13   12   13    4   12   15    9   26    4 |    36   39   34   37   42   36   36   41   41   42    36
  19  |    8   13   11   12   17    4   10   12   10   16    4 |    34   35   35   31   39   32   34   35   31   34    32
  20  |    8    9   15   10   11    6    9    8   11   29    4 |    34   36   30   39   42   36   33   35   40   36    35
  21  |    7   11   12    9    9    4   11   11   10   40    3 |    29   34   28   28   34   28   31   31   28   36    29
  22  |   11   11   13    9   12    4    9    9    9   21    4 |    42   45   41   46   51   45   42   45   50   44    44
  23E |    8   12   10   14   13    4   10   11    9   15    4 |    26   27   26   32   31   25   26   26   26   33    26
  24  |    8   10   14   10    8    5   11   11    8   14    3 |    30   33   36   32   34   29   32   29   33   33    32
  25  |    7    8   14    6   10    5   11    8   11   16    3 |    30   30   35   31   32   28   32   28   25   25    29
  26E |   23   22   20   12   20   13   24   28   49   28   10 |    29   38   32   35   30   33   42   30   55   51    31
 X27  |    7   12   15    9  ---    5   12    7    9   14    4 |    38   33   40   36  ---   36   37   33   37   39    36
  28  |    8   11   10   12   16    5   10   26   11   12    5 |    32   34   29   37   35   30   32   34   28   32    29
  29  |   10   15    9   12   18    4   19   12   11   20    5 |    27   30   25   25   33   22   30   24   26   31    25
 X30  |    8    9   12    8  ---    4   14   11    8   12    4 |    34   37   40   34  ---   34   40   32   39   33    36
  31  |    8   10   14   11   13    5    9   12    9   13    4 |    28   33   28   33   39   27   28   27   28   26    29
  32  |    9    7   14    5   12    4    7   11   10   16    3 |    28   31   26   30   35   27   28   33   32   27    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12   12   11   13    6   12   15   14   20      |T   37   37   37   36   39   36   35   37   38   36    37
 WRMS |    9   12   12   11   12    5   12   12   10   19      |NE  35   34   35   33   36   34   32   35   36   32    35
 MEDI |    8   10   12   10   13    5   11   11   10   16      |MD  31   34   31   33   35   30   32   31   31   33    31

Table 3.1796.1   GPS week: 1796   Day: 1   MJD: 56817.000                            

        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    8   14   10   13    6   16   10   12   11    4 |    24   30   20   21   33   21   32   25   22   21    24
   2  |    8   12   12   14   10    3    9   11    9   22    4 |    19   27   22   15   20   18   23   19   22   17    18
   3E |   15   16   13   12   16    8   17   21   15   17    6 |   106  105  107  104  108  105  108  110  107  106   106
   4  |   14   11   10   12    8    4    8    9    5   20    3 |    16   18   17   20   14   14   15   15   15   25    15
   5  |   12   14   14   12   11    8   18   24   12   24    5 |    27   33   24   25   28   20   32   24   23   22    24
  X6  |   10  ---   11  ---  ---   11  ---   11   15  ---    7 |    94  ---   96  ---  ---   90  ---   89   91  ---    92
   7  |    8   10   12   11   12    7   12   13    9   14    4 |    26   27   22   26   31   20   25   27   26   20    24
   8  |    9    8   11    8   10    4    8    7    8   29    3 |    25   27   28   25   23   23   26   25   25   34    24
  10  |    7    9   11    7    9    3    7    9    7   23    3 |    25   26   22   25   26   21   23   25   24   27    24
  11  |    9    8   17   10   15    4    9   10   13   12    4 |    28   35   24   27   40   24   34   30   26   24    28
  12  |   10   18    7   17   16    6   17   10   14   14    5 |    25   30   20   31   28   20   26   22   27   21    23
  13E |    9   12    7    9   11    3   11    9    7   12    3 |    23   25   20   22   25   21   25   22   25   22    22
  14E |    8    9    7    7   11    5   11   10    9   15    3 |    24   23   22   23   25   19   20   23   24   28    21
  15E |    7   16    8   17   15    5   21   12   11   20    5 |    27   31   23   31   28   23   27   27   31   29    26
  16  |   13   18   11   16   13    5   14   15   11   17    5 |    25   29   21   27   30   21   25   26   27   23    23
  17  |    9   13    7   10   14    4   18   13    9   14    4 |    23   26   19   24   29   19   27   16   22   21    19
  18  |    7   11   13   14   15    3   13   11    9   27    4 |    24   27   24   26   30   21   26   26   22   30    23
  19  |    8   11   12   10   17    4   12   12    9   16    4 |    25   29   28   26   36   24   26   28   28   27    26
  20  |    8    9   13   12   12    3   12    9   10   31    4 |    25   26   21   29   28   21   25   24   27   25    23
  21  |    9   12   13    6   10    5   14   11    9   34    4 |    21   26   20   20   23   16   25   21   24   17    20
  22  |   11    9   13   13   13    4   12    8   12   20    4 |    26   29   27   30   34   25   27   28   31   26    27
  23E |    8   11    8   15   15    3   13    9   11   16    4 |    22   22   16   24   21   15   19   18   22   24    18
  24  |    7   11   14    8    8    6   13    9    9   12    3 |    23   28   30   24   29   21   29   21   25   23    25
  25  |    8   10   14    8   14    4   13    9   10   16    4 |    22   25   27   27   28   20   24   20   23   21    22
  26E |   19   17   15   10   17   10   18   16   34   15    7 |    25   29   17   21   14   14   23   18   41   28    20
 X27  |    7   13   14    9  ---    6   12   10   11   19    4 |    28   27   34   28  ---   28   30   28   31   33    28
  28  |   10   12    9   13   16    5   12   20   13   13    5 |    21   24   19   27   28   18   22   22   23   22    19
  29  |   10   22    8   14   19    6   22   12    9   21    5 |    22   28   18   23   25   17   29   17   22   24    18
 X30  |    8    9   12    8  ---    6   14    8   11   13    4 |    28   30   32   28  ---   27   36   28   29   27    29
  31  |    7   12   15   11   14    6   11   13   10   16    4 |    24   30   22   28   35   19   24   22   27   21    23
  32  |   10    6   13    8   12    6    6    8    7   12    3 |    26   25   21   24   32   20   23   25   25   19    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   13   12   12   13    5   14   13   12   19      |T   29   29   27   27   30   25   28   28   30   26    27
 WRMS |    9   13   12   11   13    5   12   12    9   19      |NE  26   27   26   25   28   23   26   26   27   23    25
 MEDI |    9   11   12   10   13    5   12   10   10   16      |MD  25   27   22   25   28   21   25   24   25   24    23

Table 3.1796.2   GPS week: 1796   Day: 2   MJD: 56818.000                            

        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    8   14   12   12    6   16    6   17   15    4 |    33   36   25   31   37   28   39   29   33   29    31
   2  |    6   11   13   13   10    4    9    9   10   19    4 |    19   27   22   18   23   19   22   20   21   17    19
   3E |   13   18   15    9   16    9   18   28   19   15    6 |    63   61   60   58   61   58   60   66   59   59    60
   4  |   13    9   11   10    8    4    7    6    9   17    3 |    29   20   19   18   18   22   21   18   20   30    22
   5  |   12   12   14   12   11    6   13   25   12   23    5 |    29   34   30   25   26   25   32   22   25   26    26
  X6  |    7  ---   11  ---  ---    8  ---   12   13  ---    6 |   101  ---  102  ---  ---  100  ---   95   97  ---    98
   7  |    9   10   13    9   16    7   13   13   10   15    4 |    29   29   24   27   36   23   25   27   28   22    26
   8  |   10    7   12   11   11    4    8    9   10   27    3 |    28   26   27   25   28   24   24   24   28   34    25
  10  |    7    7   13    9    9    5    7    9   10   21    3 |    31   31   26   32   34   29   28   31   30   33    30
  11  |    8    8   17    9   15    5   10    8    8   12    4 |    32   40   29   33   43   31   38   33   34   30    34
  12  |    9   19   10   20   17    6   17   10   12   14    5 |    25   33   26   35   31   24   26   26   28   27    25
  13E |    5    7    9    7   10    4   11   14    8   12    3 |    28   29   24   30   36   27   29   31   31   26    28
  14E |    8    8    7    7   14    3   12   13    9   12    3 |    27   29   26   29   31   28   24   29   32   35    28
  15E |    9   16    8   19   11    6   22   19   17   23    6 |    33   37   31   38   35   32   37   36   35   37    33
  16  |   10   20   11   14   15    6   13   16   13   16    5 |    25   31   21   29   31   23   28   29   28   24    25
  17  |   10   10   10   11   14    4   17   16   11   16    4 |    28   28   22   25   33   23   27   20   24   23    23
  18  |    8   13   13   15   14    4   13   11   12   24    4 |    29   37   28   34   36   30   33   33   37   32    31
  19  |    7   12   11   12   17    3    9   18    9   17    4 |    29   33   30   29   39   27   32   33   29   28    30
  20  |    8    9   15   13   10    4   10    8    8   31    4 |    30   33   23   34   34   29   31   32   33   32    29
  21  |    8   10   14    7   16    6   13   13   13   29    4 |    23   28   24   22   29   23   26   24   25   20    23
  22  |   10    9   14    9   14    4    9   12   10   19    4 |    35   38   32   39   41   36   35   36   37   34    35
  23E |    9   10   10   15   10    5   14   10    7   18    4 |    27   24   21   30   27   21   24   25   27   28    23
  24  |    9   10   14   11    7    5   12    8    9   12    4 |    27   32   32   29   32   26   29   28   28   29    29
  25  |   11    9   14    8   12    6   11   11    9   14    4 |    22   27   30   25   32   23   26   23   25   22    24
  26E |   17   16   15   12   14    7   17   14   34   18    7 |    21   29   22   27   17   23   28   23   45   33    23
 X27  |    8   13   15    6  ---    6   12   14   15   17    5 |    33   29   34   30  ---   31   33   31   33   33    30
  28  |    9   12    9   14   18    5    8   23    7   13    5 |    27   29   24   35   35   27   29   28   29   25    26
  29  |   11   21    9   15   19    8   21   15   11   18    6 |    23   28   20   22   30   20   28   21   23   25    20
 X30  |    9   10   13    9  ---    5   12    7    9   12    4 |    34   34   37   30  ---   31   39   31   32   31    33
  31  |   14   13   14   11   16    6   11   14   12   12    5 |    29   34   22   29   37   22   25   24   27   19    26
  32  |    9    9   14    7   12    5    9    7    7   15    3 |    28   32   23   29   35   25   29   31   29   27    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12   12   12   13    5   13   14   13   18      |T   31   31   29   29   33   29   30   30   32   29    30
 WRMS |   10   12   13   11   13    5   12   13    9   19      |NE  31   31   29   28   32   28   29   29   31   26    29
 MEDI |    9   10   13   11   14    5   12   12   10   16      |MD  29   31   26   29   33   26   28   29   29   28    28

Table 3.1796.3   GPS week: 1796   Day: 3   MJD: 56819.000                            

        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    8   12   10    8    4   15    6    7   13    3 |    31   40   34   35   44   33   43   34   39   29    35
   2  |    8   13   12   15   11    5   12   11    9   18    4 |    21   31   23   24   25   21   26   25   28   22    23
   3E |   10   20   14   13   12    9   20   25   20   21    6 |    91   92   93   97   94   92  100   97   91   94    93
   4  |    9   10   11   13    8    4    7    5   11   29    3 |    15   21   21   21   16   15   19   16   20   39    15
   5  |   11   13   14   13   11    6   16   24   11   24    5 |    28   32   25   25   27   22   33   25   24   23    24
  X6  |   14  ---   10   20   83    9  ---    9   12   35    6 |   118  ---  121   66   83  114  ---  115  114   67   116
   7  |   10   11   11   13   14    6   13    8   10   13    4 |    29   34   31   32   40   28   32   29   36   24    31
   8  |    8    7   11   11    9    3    9    9    9   29    3 |    28   31   31   28   31   26   28   28   29   37    28
  10  |    6    8   12   13   12    3    9    8   11   23    3 |    31   38   30   35   41   32   35   39   41   40    35
  11  |    8   10   15   10   12    4   15    6   11   17    4 |    32   45   34   39   49   35   42   37   47   33    38
  12  |    9   20    7   20   16    6   22   10   10   18    5 |    31   34   27   40   34   29   33   30   28   29    29
  13E |    5   11    7   10   12    5   15    9    8   12    3 |    28   34   30   33   37   29   33   30   30   31    30
  14E |    9   10    7    8   13    6   15    8    8   13    3 |    33   29   28   27   34   26   30   29   37   34    29
  15E |   10   17    6   17   14    5   24   14   13   23    5 |    36   43   35   43   43   37   39   40   42   42    38
  16  |    8   20   10   15   12    5   10   12   11   19    4 |    28   35   28   39   33   28   35   32   29   29    29
  17  |   10   11    9   12   16    4   20   13   12   16    5 |    33   29   29   28   36   28   37   25   29   29    28
  18  |    6   12   13   14   14    5   15   12   11   25    4 |    33   39   33   38   41   35   35   35   44   35    35
  19  |    8   12   10   10   14    4   13   13    9   16    4 |    37   37   37   33   39   32   41   36   38   33    35
  20  |    9   10   14   16   10    4   12    8   10   29    4 |    38   40   32   42   39   34   38   35   43   35    36
  21  |    8   12   12    7   10    5   15   13   13   32    4 |    25   30   24   25   29   22   29   27   34   25    25
  22  |    9   11   12    9   13    5   17    9   12   19    4 |    37   43   37   42   45   39   39   41   49   40    40
  23E |    8   12    8   17   11    5   17   15    7   15    4 |    30   32   27   37   33   27   30   32   32   30    29
  24  |    7   11   13   10   11    4   17   10    8   13    4 |    30   33   36   32   36   29   36   32   35   32    32
  25  |   11   12   14    9   15    5   15   11    9   13    4 |    28   29   32   33   34   28   31   28   27   23    28
  26E |   14   16   14   10   17    5   17   16   28   18    6 |    21   33   27   28   17   26   31   28   47   38    27
 X27  |    6   12   15    7  ---    4   12    9   11   18    4 |    39   33   42   40  ---   36   41   34   36   40    36
  28  |    7   14    8   16   17    4   10   21    8   15    5 |    31   34   28   36   40   28   33   30   30   32    29
  29  |   13   20    7   14   18    5   25   14   10   13    5 |    30   31   22   28   32   24   33   28   26   26    25
 X30  |    7    8   12   10  ---    4   13    6   10   14    4 |    32   38   39   31  ---   33   40   33   38   35    35
  31  |    7   12   13   11   14    6   10   11   12   13    4 |    31   35   26   34   40   26   30   28   35   23    30
  32  |    8    9   11    9    7    7    8    7    7   13    3 |    32   35   29   36   39   30   35   34   41   28    33
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13   11   13   13    5   16   13   12   20      |T   35   36   35   36   39   33   36   35   39   34    35
 WRMS |    9   13   11   11   12    5   16   12    9   18      |NE  33   34   33   34   37   32   34   34   37   32    33
 MEDI |    8   12   12   12   12    5   15   10   10   18      |MD  31   34   30   34   37   29   33   32   36   32    30

Table 3.1796.4   GPS week: 1796   Day: 4   MJD: 56820.000                            

        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   14   10   10    6   15    7   11   15    4 |    28   34   27   29   41   25   37   27   28   28    28
   2  |   11   12   14   15   15    4   11   11   13   12    5 |    24   29   22   21   26   20   24   25   25   21    21
   3E |   12   15   12   12   16    9   19   19   22   16    6 |    68   76   68   68   73   66   71   72   68   68    68
  X4  |    4  ---  ---  ---  ---   39  ---  ---  ---  ---    0 |    56  ---  ---  ---  ---    7  ---  ---  ---  ---    55
   5  |   12   11   13   10   15    6   15   25   16   30    5 |    28   32   26   24   31   22   31   23   27   22    25
  X6  |   11  ---   13   13   81    6  ---    9   12   33    5 |   118  ---  118   57   69  113  ---  109  107   60   111
   7  |    8   10   10   12   13    6   13    8   11   15    4 |    26   30   21   27   35   22   24   24   30   20    24
   8  |    9    8   11    9   18    4    9    7   10   32    3 |    25   29   26   23   31   22   23   25   24   37    24
  10  |    9    8   11    8   23    5    7    6    8   16    4 |    23   31   23   31   45   25   25   30   34   27    28
  11  |    9    8   16    9   14    4   13    9    8   12    4 |    28   38   27   30   47   27   36   30   35   23    31
  12  |   11   20    8   16   17    5   18   11   13   13    5 |    23   29   19   29   29   20   25   23   25   19    22
  13E |    8   10   10    7   14    3   13    7    9   11    3 |    26   25   23   26   34   24   23   25   33   25    25
  14E |   10   11    8    8   15    4   11   11    9   15    4 |    30   30   29   31   32   26   29   28   32   34    28
  15E |    9   17    7   15   17    5   24   16   12   23    5 |    29   38   27   36   39   30   36   33   40   34    32
  16  |   12   18   10   12   13    6   15   14   14   16    5 |    24   28   23   28   26   22   25   23   26   20    22
  17  |   11   10    9   11   18    6   20   16   11   17    5 |    29   28   23   25   36   23   29   21   21   25    23
  18  |   11   11   13   14   15    5   14   11   11   27    4 |    25   33   25   31   35   26   31   27   33   28    27
  19  |    8   11    9   11   19    4   14   13   12   16    4 |    30   34   31   29   40   28   33   35   28   27    30
  20  |    8    9   13   10   14    4    9    7    9   28    3 |    29   33   24   33   35   26   26   28   34   31    28
  21  |   10   11   12    7   11    4   12   11   11   31    4 |    19   28   19   21   28   20   26   24   27   21    22
  22  |   12   10   12    9   14    5   11   10    9   25    4 |    32   36   31   36   38   33   33   33   41   36    33
  23E |    9    9   11   12   15    4   12   10    7   14    4 |    23   24   17   25   25   21   19   23   25   22    20
  24  |   12   11   13   10   13    3   14   13   10   14    4 |    25   30   28   25   30   23   26   27   25   27    25
  25  |   11   10   14    9   16    5   13   10    9   13    4 |    25   24   27   24   29   23   25   20   25   16    23
 X26E |   14   18   13   11  ---    7   15   21   28   17    7 |    18   29   22   27  ---   19   26   24   40   31    22
 X27  |    8   10   15    9  ---    4   11    9   13   15    4 |    29   27   37   30  ---   29   30   29   30   31    29
  28  |    7   12    7   11   17    4   12   21   11   13    4 |    28   31   24   28   34   23   26   24   24   26    24
  29  |    9   20    8   12   24    6   20   12   12   18    5 |    24   26   19   23   31   19   28   22   24   23    20
 X30  |    5    9   11    9  ---    5   13    8   13   14    4 |    29   35   32   28  ---   28   35   29   36   30    31
  31  |    8   12   11    9   12    6   13   12   13   12    4 |    27   31   21   29   36   20   25   24   27   21    25
  32  |   11    7   12    8   14    5    7    8    7   12    3 |    30   31   23   27   37   24   28   28   33   19    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12   11   11   16    5   14   13   12   19      |T   31   32   29   30   36   27   29   30   33   28    30
 WRMS |   10   12   11   10   16    5   14   12   10   19      |NE  31   30   28   28   35   26   28   29   32   26    30
 MEDI |    9   11   11   10   15    5   13   11   11   15      |MD  28   30   24   28   35   23   26   25   28   26    25

Table 3.1796.5   GPS week: 1796   Day: 5   MJD: 56821.000                            

        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   10   13    9   13    6   14    6    8   13    3 |    27   39   23   27   41   25   39   26   29   23    28
   2  |    7   11   13   12   17    5   12   10   10   15    4 |    19   29   19   18   23   17   22   21   24   17    19
   3E |   13   67   15   16   16   12   19   21   20   21    9 |    80   81   80   82   85   79   82   86   84   82    79
  X4  |    8   10  ---    8   16    9  ---   10  ---  ---    5 |    19   16  ---   11   19   12  ---   14  ---  ---    16
   5  |    8   12   14   11   18    7   17   24   15   31    5 |    24   31   25   26   31   22   29   24   25   22    23
  X6  |   10  ---   12    9   80    5  ---   13   14   35    6 |    94  ---   97   53   68   90  ---   91   85   55    91
   7  |    7   13   12   11   12    5   15    8   10   14    4 |    27   32   22   28   35   23   25   24   30   17    25
   8  |    8   11   11    9   22    4    8   11   11   33    4 |    25   29   25   20   33   21   22   19   27   38    22
  X9  |    3  ---  ---  ---  --- 5797  ---  ---  ---  ---    0 |   892  ---  ---  ---  ---   28  ---  ---  ---  ---   895
  10  |    6    9   12    7   26    6   10    9    8   23    4 |    27   36   25   28   43   25   30   26   34   31    28
  11  |    5   13   16    9   18    3   13    7    9   13    4 |    26   45   24   27   47   25   35   26   31   19    28
  12  |   11   25    8   17   20    5   20   17   14   14    6 |    22   33   18   29   31   19   24   25   22   21    20
  13E |    7   11    9    9   14    4   11    6    9    9    3 |    25   25   20   24   34   21   22   20   22   19    22
  14E |    7   13    8    8   18    5   14    9    8   16    4 |    21   26   19   19   24   17   21   21   21   26    19
  15E |    9   20    9   16   19    5   23   13   13   26    5 |    29   38   26   32   44   30   36   33   35   37    31
  16  |    8   26   10   14   12    6   14   13   15   18    5 |    25   33   21   28   26   21   25   21   30   19    22
  17  |   11   13   10   10   19    4   21   17    9   13    5 |    29   26   26   24   39   22   28   22   27   19    23
  18  |    7   13   13   13   18    3   15   12   11   34    4 |    20   31   21   24   34   18   26   19   25   31    20
  19  |    6   12   10    9   23    4   15    8    8   14    4 |    28   29   28   27   41   26   32   29   28   22    27
  20  |    8   13   14   10   14    4   11    9   10   27    4 |    32   37   25   32   34   26   29   29   31   29    29
  21  |    7   15   13    7   16    2   16    9   12   33    4 |    20   29   19   20   30   16   25   20   24   14    19
  22  |    7   15   13   10   16    3   12    9   11   26    4 |    26   35   26   32   33   24   28   26   32   33    26
  23E |    7   13   10   14   15    4   12    9   10   17    4 |    21   25   16   25   26   17   18   19   23   25    19
  24  |   11   17   15    9   18    3   15   21   11   16    5 |    23   28   27   24   30   20   26   28   22   25    23
  25  |    9   17   14   11   21    5   14   14   10   15    5 |    24   26   28   31   32   22   23   21   26   19    23
 X26E |   15   18   13   17  ---    6   16   24   27   15    7 |    21   31   23   27  ---   21   28   28   41   26    23
 X27  |    7   22   15   10  ---    5   11    7   12   15    5 |    28   27   32   29  ---   26   28   24   29   28    26
  28  |    8   15    9   15   18    5    8   21    8   13    5 |    27   32   24   31   36   23   29   23   26   23    24
  29  |    8   16   10   11   27    4   22   12   11   14    5 |    22   22   17   24   34   16   25   23   22   18    19
 X30  |    9   12   12    9  ---    5   14   11   12   14    4 |    29   37   33   27  ---   30   37   25   35   30    30
  31  |    8   15   14    9   15    5   16   12   16   13    4 |    28   33   20   29   38   20   27   23   26   19    24
  32  |    7   11   13    7   19    6    7    8   11   15    4 |    29   34   23   27   38   24   28   30   33   21    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20   12   11   18    5   15   13   11   20      |T   55   32   27   28   36   25   29   27   31   26    54
 WRMS |    8   15   12   10   18    5   15   12   10   18      |NE  62   31   26   26   35   24   27   26   30   24    61
 MEDI |    8   13   12   10   18    5   14   11   11   15      |MD  26   31   24   27   34   22   28   24   27   23    23

Table 3.1796.6   GPS week: 1796   Day: 6   MJD: 56822.000                            

        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   13   10   16    5   14    9   14   14    4 |    38   44   31   34   49   35   46   40   39   33    37
   2  |    9   10   13   13   20    4   10   10    9   17    4 |    24   31   24   25   32   22   26   30   25   26    24
   3E |    9   16   11   11   15    8   18   21   21   14    6 |    98   99  101  101   99  100  101  100  101  101   100
   4  |   13    8   13    9   20    8   10   15    9   44    4 |    17   11    8    9   19    9    7   15    4    4    12
   5  |   13   10   14   12   22    6   16   25   14   24    6 |    36   35   35   36   38   31   35   32   34   31    33
  X6  |    9  ---   14   15   83    8  ---   17   10   35    6 |   148  ---  149   53   77  142  ---  139  139   62   142
   7  |    9    9   10   12   17    4   17   10   10   14    4 |    30   32   25   33   38   28   30   28   33   21    29
   8  |    7    8   12    7   23    4    9    9    7   29    3 |    27   29   27   27   37   25   23   25   28   35    26
  X9  |   21   18  ---  ---  ---   18  ---   24   32  ---   14 |   816   11  ---  ---  ---   35  ---    7    5  ---   822
  10  |    8    8   12    6   32    6    9   10   12   19    4 |    35   41   28   37   57   33   31   40   38   40    36
  11  |    7    9   16    9   20    4   11    7   13   10    4 |    35   48   32   37   55   37   44   40   42   31    39
  12  |    8   17   11   17   22    4   16   15   12   13    5 |    32   33   24   39   37   28   30   33   32   26    30
  13E |    6   11    9    8   18    4   13    9    9   10    3 |    31   35   28   33   40   30   31   31   34   28    31
  14E |    8    9    7   11   22    4   17   12   12   15    4 |    29   31   23   29   42   24   28   28   28   33    27
  15E |    8   19    9   15   21    6   22   12   13   21    5 |    39   48   36   47   52   41   42   43   45   43    41
  16  |    9   15    8   14   13    5   14   11   14   16    4 |    26   31   26   33   33   27   29   29   33   27    27
  17  |   10   11   10   10   21    5   21   17    9   14    5 |    30   29   26   27   41   26   29   24   24   25    25
  18  |   11   11   13   11   19    5   14   14   10   30    4 |    33   41   31   36   49   35   39   39   45   41    36
  19  |    7   11    8   10   25    5   12    9   10   16    4 |    35   35   35   31   46   32   34   32   34   29    33
  20  |    8   10   12   11   15    4   12   10   10   21    4 |    39   40   30   45   44   37   35   42   40   33    38
  21  |   12   12   13    9   16    5   14   10   11   33    4 |    27   33   24   25   37   26   31   30   32   25    27
  22  |   10   10   11    9   21    5   14   11    9   28    4 |    43   47   38   45   53   44   45   44   48   47    43
  23E |    7    8    9   15   20    3   12   12    9   14    4 |    29   32   25   35   36   27   30   30   30   27    28
  24  |   12    9   15   12   22    5   13   24    9   17    5 |    32   34   34   32   37   28   34   36   32   36    31
  25  |   10   10   15   10   24    3   14    9    9   15    4 |    27   27   31   31   38   27   30   27   28   24    28
 X26E |   18   18   14   13  ---    7   18   25   28   14    8 |    19   35   25   30  ---   25   31   34   45   32    27
 X27E |    7   18   15    8  ---    6   11    9   10   17    4 |    36   30   40   33  ---   35   35   32   36   36    33
  28  |    9   11   10   13   22    6   11   21    8   13    5 |    33   34   28   38   39   31   30   28   30   30    29
  29  |   14   17    7   13   31    4   21    8    9   15    5 |    29   26   20   25   41   21   29   24   23   23    23
 X30  |    7    8   13    8  ---    4   13   11    8   15    4 |    33   38   37   33  ---   34   39   31   38   34    35
  31  |    9   14   10   11   17    5   15   13   11   12    4 |    28   36   23   29   39   24   27   26   29   22    27
  32  |    8    7   11   10   22    5    8    9    5   14    3 |    35   39   30   37   46   32   34   38   39   29    35
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11   11   11   21    5   14   14   11   20      |T   61   35   34   35   44   35   34   36   37   33    61
 WRMS |   10   11   11   10   21    5   14   13    9   18      |NE  67   33   33   33   42   33   32   35   35   30    66
 MEDI |    9   10   12   11   21    5   14   11   10   15      |MD  32   34   28   33   40   30   31   31   33   31    31



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 4.1796   GPS week: 1796   MJD: 56816.0-56822.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2974 |U    9    11    29 |U    9    10    28 |U    8    10    21 |
emr | emr 2871 |    12    13    35 |U    9     9    30 |    10    11    21 |
esa | esa 2948 |    10    11    31 |U    9    10    31 |     9    12    22 |
gfz | gfz 2913 |U   10    11    31 |U    9    10    30 |U   10    11    28 |
grg | grg 2687 |U   12    13    32 |U   12    16    40 |U   11    14    26 |
igr | igr 2951 |    10    11    30 |     9     9    30 |     9    12    23 |
igs | igs 2964 |    10    11    30 |     9     9    30 |     9    11    21 |
jpl | jpl 2844 |U   11    13    34 |    11    23    43 |    10    11    24 |
mit | mit 2976 |    10    12    33 |U    9    18    39 |U    8    10    23 |



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 5.1796.0   GPS week: 1796   Day: 0   MJD: 56816.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     8     9    24 |     7     9    26 |     5     8    16 |
emr | emr 2874 |    11    10    32 |     6     8    32 |     7     7    17 |
esa | esa 2976 |    10     8    24 |     7    10    36 |     6     9    18 |
gfz | gfz 2872 |    10    10    34 |     6     8    33 |     8     9    41 |
grg | grg 2688 |    10     8    29 |     9    20    47 |     6     9    19 |
igr | igr 2965 |     9     8    24 |     7     9    32 |     6    10    19 |
igs | igs 2970 |     9     9    25 |     6     9    33 |     6     9    17 |
jpl | jpl 2874 |    11     9    26 |     7    17    38 |     7     9    17 |
mit | mit 2976 |     8     9    25 |     7    20    43 |     6     8    16 |

Table 5.1796.1   GPS week: 1796   Day: 1   MJD: 56817.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    12    20    60 |    15    17    41 |    10    12    22 |
emr | emr 2872 |    14    21    57 |    17    20    44 |    10    11    21 |
esa | esa 2976 |    14    20    58 |    15    17    42 |    11    14    23 |
gfz | gfz 2872 |    13    21    59 |    15    18    41 |    10    12    21 |
grg | grg 2687 |    15    23    59 |    19    27    42 |    11    13    27 |
igr | igr 2970 |    13    22    59 |    15    17    41 |    10    13    23 |
igs | igs 2948 |    13    21    58 |    15    17    41 |    10    12    20 |
jpl | jpl 2872 |    13    22    61 |    20    33    39 |    10    12    22 |
mit | mit 2976 |    14    21    58 |    16    24    40 |     9    11    21 |

Table 5.1796.2   GPS week: 1796   Day: 2   MJD: 56818.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     8     8    32 |    12     8    40 |     8     9    20 |
emr | emr 2872 |    13    10    37 |     9     6    39 |     9     9    20 |
esa | esa 2976 |     9     8    37 |    11     9    42 |     9    11    21 |
gfz | gfz 2873 |     8     8    32 |    12     8    40 |     8     9    20 |
grg | grg 2688 |    11    11    36 |    14    19    56 |    10    12    25 |
igr | igr 2947 |     8     8    36 |    12     8    43 |     8    10    21 |
igs | igs 2955 |     9     8    36 |    11     7    41 |     8    10    20 |
jpl | jpl 2872 |    10    12    36 |    12    26    50 |     9    11    23 |
mit | mit 2976 |     9     9    33 |    11    19    42 |     7     9    22 |

Table 5.1796.3   GPS week: 1796   Day: 3   MJD: 56819.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    15    17    37 |     6     8    21 |     9    14    21 |
emr | emr 2872 |    17    19    43 |     7     7    21 |    12    15    20 |
esa | esa 2976 |    16    18    42 |     6     9    23 |    10    16    23 |
gfz | gfz 2968 |    16    17    41 |     6     8    20 |     9    14    23 |
grg | grg 2784 |    16    16    37 |    10    16    42 |    13    19    29 |
igr | igr 2880 |    15    16    40 |     6     7    19 |    10    16    25 |
igs | igs 2974 |    15    17    38 |     5     8    19 |    10    15    23 |
jpl | jpl 2872 |    17    18    44 |     7    18    42 |    10    15    24 |
mit | mit 2976 |    15    16    37 |     5    16    30 |     9    14    25 |

Table 5.1796.4   GPS week: 1796   Day: 4   MJD: 56820.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2880 |     7     8    18 |     5     9    16 |    11    11    25 |
emr | emr 2776 |    10    10    24 |     8     8    22 |    14    14    26 |
esa | esa 2880 |     8     8    17 |     5     8    18 |    12    13    29 |
gfz | gfz 2872 |     7     8    17 |     4     8    17 |    16    14    48 |
grg | grg 2592 |     9     9    17 |     8    10    24 |    16    18    27 |
igr | igr 2880 |     8     9    18 |     5     7    19 |    12    14    28 |
igs | igs 2880 |     7     8    17 |     4     8    20 |    12    13    26 |
jpl | jpl 2776 |    11    11    24 |    10    19    36 |    13    14    31 |
mit | mit 2880 |     7     8    18 |     6    13    28 |     9    11    26 |

Table 5.1796.5   GPS week: 1796   Day: 5   MJD: 56821.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2986 |     9    11    20 |    10     7    23 |     6     6    23 |
emr | emr 2872 |    13    17    36 |    11     7    24 |     7     6    26 |
esa | esa 2880 |    10    13    26 |    10     8    27 |     8     7    19 |
gfz | gfz 2966 |     9    10    21 |     9     8    27 |     7     6    23 |
grg | grg 2688 |    13    18    32 |    12     9    29 |     8    12    33 |
igr | igr 2969 |     9    10    22 |    10     7    28 |     7     8    23 |
igs | igs 2972 |    10    12    23 |     9     8    25 |     7     7    23 |
jpl | jpl 2776 |    11    13    31 |    11    24    51 |     8     6    24 |
mit | mit 2976 |     9    11    23 |     9    18    35 |     6     7    24 |

Table 5.1796.6   GPS week: 1796   Day: 6   MJD: 56822.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3055 |     5     3    15 |    10     9    27 |    10    10    19 |
emr | emr 2965 |     8     6    17 |     8     9    30 |    12    11    19 |
esa | esa 2976 |     5     5    13 |     9    10    26 |    11    12    20 |
gfz | gfz 2968 |     5     3    13 |     9    10    33 |    10    10    19 |
grg | grg 2688 |     8     7    16 |    11    11    38 |    10    13    19 |
igr | igr 3050 |     5     4    11 |     9     9    25 |    10    12    21 |
igs | igs 3052 |     5     4    13 |     9    11    34 |    10    11    19 |
jpl | jpl 2872 |     6     6    15 |    10    22    45 |    11    11    23 |
mit | mit 3072 |  ----  ----  ---- |    11    16    57 |     9     8    24 |


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 6.1796   GPS week: 1796   MJD: 56816.500-56822.500

                                                         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       8     -27      87      0 |       9     23
            |      20      21      95      78      4 |       4
emr   uuuuu |      52      15    -139     112      5 |      32     41
            |      15      26      95      53      9 |       3
esa   uuuuu |     -26     -15      53     -79      2 |       8     22
            |       9      12      49      61      3 |       4
gfz   uuuuu |     -18      11     -51      -8     -1 |       0     22
            |      17      20     150      94      4 |       6
grg   uuuuu |      27     -32      66     -16      1 |      38     42
            |      26      24     108     111      4 |       4
igr   xxxxx |      -5     -22     -20     -86      2 |      -8     21
            |      13      13      39      60      4 |       4
irf   xxxxx |      -3      -9      11     -43     -2 |      -1     22
            |       8      16      44      31      4 |       5
jpl   uuuuu |     -10     -56      13     -44     -7 |      17     30
            |      26      43      44      92      7 |       6
mit   uuuuu |     -17      -3      33     -75     -5 |      26     34
            |      19      31      80      56      4 |       5
ngs   uuuuu |       3      42      92     -22      3 |       9     19
            |      46      35     160     195      4 |       4
sio   xxxxx |     -23      11      38    -125     -3 |      56     60
            |      17      28      79      36      8 |       2


Table 7.1796.0   GPS week: 1796   Day: 0   MJD: 56816.500

                                                         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 |     -36     -21      46     -40      0 |      17     23
emr   uuuuu |      46     -32       3     139     11 |      33     40
esa   uuuuu |     -39      -8      68     -34      4 |      15     23
gfz   uuuuu |     -19      -4     -14       0     -9 |      10     19
grg   uuuuu |      22       9    -119    -120      5 |      45     47
igr   xxxxx |      -6     -37     -64       3     -2 |       0     15
irf   xxxxx |      -5      14     -24     -34     -7 |       9     17
jpl   uuuuu |      32     -20      23      73     -5 |      26     33
mit   uuuuu |     -31      43     -11     -91     -9 |      35     38
ngs   uuuuu |      34      51     -27      49      9 |      16     20
sio   xxxxx |      -3      49     -26     -77      4 |      61     62

Table 7.1796.1   GPS week: 1796   Day: 1   MJD: 56817.500

                                                         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 |      -9      38       1      54     -1 |      12     24
emr   uuuuu |      56       4    -265     167     21 |      31     40
esa   uuuuu |     -26     -15      21     -57      4 |      11     24
gfz   uuuuu |     -32      -4      86    -140     -4 |       5     24
grg   uuuuu |      27     -44      55    -187     -3 |      40     45
igr   xxxxx |     -17     -13     -57     -57      2 |      -5     22
irf   xxxxx |     -15     -23      28     -91     -5 |       3     23
jpl   uuuuu |      10       8     -27       2      5 |      22     33
mit   uuuuu |     -28      -8      49    -143     -8 |      29     37
ngs   uuuuu |       9       0      80     232     -3 |      13     21
sio   xxxxx |     -24     -13      26    -146     10 |      58     61

Table 7.1796.2   GPS week: 1796   Day: 2   MJD: 56818.500

                                                         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 |     -16      -5     -69      22      0 |       9     23
emr   uuuuu |      77      37    -178      95      6 |      32     40
esa   uuuuu |     -26     -10     135     -67      4 |       8     23
gfz   uuuuu |     -38      -3     138     -94      0 |       1     23
grg   uuuuu |      -5     -19     -34     -38     -4 |      38     42
igr   xxxxx |      -3      -9      13     -59      7 |      -8     23
irf   xxxxx |     -12       3      65     -57     -2 |       0     23
jpl   uuuuu |     -30     -77      78     -29    -16 |      19     31
mit   uuuuu |     -36      24     112     -94     -5 |      26     35
ngs   uuuuu |      59      43    -105     164      4 |       9     20
sio   xxxxx |     -58      18     113    -121     -2 |      57     60

Table 7.1796.3   GPS week: 1796   Day: 3   MJD: 56819.500

                                                         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      25     -55     129     -5 |       6     23
emr   uuuuu |      56      46    -138      37      1 |      29     39
esa   uuuuu |     -14     -28      19      10     -1 |       4     21
gfz   uuuuu |     -15       6     -85     121      0 |      -3     23
grg   uuuuu |      52     -21     167      72      5 |      34     40
igr   xxxxx |     -28     -18      34     -68     -1 |     -11     23
irf   xxxxx |       1     -10      47      -7     -2 |      -4     23
jpl   uuuuu |     -24    -128      68      54     -4 |      14     31
mit   uuuuu |     -17      -2     110     -60     -7 |      22     33
ngs   uuuuu |     -31      50     -30    -355      6 |       6     18
sio   xxxxx |     -28     -11       2    -150    -14 |      55     59

Table 7.1796.4   GPS week: 1796   Day: 4   MJD: 56820.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -23      -6      56     179     -1 |       6     23
emr   uuuuu |      57      28    -232      69     -3 |      31     41
esa   uuuuu |     -23     -34     -15    -150      5 |       4     21
gfz   uuuuu |      15      15    -272      95      0 |      -4     22
grg   uuuuu |      53     -51     124     141      4 |      34     40
igr   xxxxx |      10     -31     -54    -116      2 |     -11     23
irf   xxxxx |       1     -18      -5     -54      2 |      -5     23
jpl   uuuuu |     -27     -66     -13    -150    -17 |      13     29
mit   uuuuu |     -25     -18      66     -94      0 |      22     32
ngs   uuuuu |     -11      93     348    -125      3 |       5     17
sio   xxxxx |     -14      -9      90    -156     -2 |      54     58

Table 7.1796.5   GPS week: 1796   Day: 5   MJD: 56821.500

                                                         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 |      27       4      44     155     -3 |       5     22
emr   uuuuu |      30      15    -108     183      6 |      32     41
esa   uuuuu |     -17       1      76    -158      0 |       4     21
gfz   uuuuu |     -17      52    -211       4      5 |      -5     22
grg   uuuuu |      47     -36     106       1     -1 |      34     40
igr   xxxxx |       4      -8     -21    -185      0 |     -12     23
irf   xxxxx |      10       0     -61     -51      0 |      -6     23
jpl   uuuuu |       8     -56     -32    -122     -7 |      10     26
mit   uuuuu |      16      -6    -118     -80     -3 |      20     30
ngs   uuuuu |     -75      -6     211     -57      2 |       5     17
sio   xxxxx |     -14      48     -79    -149     -7 |      54     57

Table 7.1796.6   GPS week: 1796   Day: 6   MJD: 56822.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -3      24    -211     109      8 |       9     23
emr   uuuuu |      42       9     -53      95     -5 |      38     45
esa   uuuuu |     -36     -10      69     -94     -1 |       9     22
gfz   uuuuu |     -17      12       2     -43      1 |      -1     22
grg   uuuuu |      -7     -65     167      21      5 |      38     43
igr   xxxxx |       7     -39       8    -121      7 |      -7     21
irf   xxxxx |       0     -32      30      -4      3 |      -1     22
jpl   uuuuu |     -36     -52      -2    -134     -4 |      14     27
mit   uuuuu |       4     -55      23      40      0 |      24     32
ngs   uuuuu |      33      65     165     -61     -3 |       9     19
sio   xxxxx |     -18      -8     140     -73     -6 |      57     60



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