[IGSREPORT-23488] Wk 1836 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Apr 3 14:50:19 PDT 2015


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1836   (Mar 15, 2015 - Mar 21, 2015)

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:

igs1836[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1836[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1836[0-6].cls  IGS GPS clock combination summary report.
igs18367.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18367.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   | MDVJ MDVJ
                0  |  ESA   | DAV1 KELY DAV1 KELY
                0  |  GFZ   | HOB2 ALRT HOB2
                0  |  GRG   | ALRT CHUR KOUC CHUR KOUC MONP
                1  |  COD   | CAS1 NKLG CAS1 NKLG
                1  |  ESA   | BJFS GLPS BJFS GLPS
                1  |  GFZ   | DRAG SCH2 YELL
                1  |  GRG   | CAS1 DARW DAV1 GLPS ISPA KOUR MONP NKLG XMIS CAS1
                1  |  GRG   | DAV1 NKLG
                1  |  MIT   | CAS1 DAV1
                2  |  COD   | NRIL
                2  |  ESA   | BJFS ONSA BJFS
                2  |  GFZ   | MAC1 MAC1
                2  |  GRG   | HYDE NRIL PDEL BRAZ HYDE NRIL PDEL
                2  |  JPL   | BAKE DUBO SCOR WILL
                2  |  MIT   | ARTU ARTU
                3  |  ESA   | MAC1 MAC1 TIXI UNSA
                3  |  GFZ   | NKLG
                3  |  GRG   | 10 10 MAW1 NKLG SYOG WES2 MAW1 NKLG SYOG WES2
                3  |  JPL   | MAC1
                4  |  COD   | FAIR CHUR FAIR
                4  |  EMR   | 10
                4  |  ESA   | CHUR NTUS TIXI UNSA
                4  |  GFZ   | NTUS KOUC
                4  |  GRG   | 10 10 INVK MAC1 NOVM INVK MAC1
                4  |  JPL   | FLIN MAC1
                4  |  MIT   | DAV1 CHUR DAV1
                5  |  COD   | NTUS CHUR
                5  |  EMR   | 10 10
                5  |  ESA   | CHUR TIXI
                5  |  GFZ   | CHUR TLSE TLSE
                5  |  GRG   | 10 10 CHUR DAV1 DRAG WES2 DAV1 DRAG WES2
                5  |  JPL   | 10 YELL
                5  |  MIT   | RBAY RBAY
                6  |  COD   | 4
                6  |  EMR   | 10 10
                6  |  ESA   | TIXI
                6  |  GFZ   | 13
                6  |  GRG   | 10 13 10 13 BRST DAV1 HYDE BRST DARW DAV1 HYDE KELY
                6  |  GRG   | MONP WUHN
                6  |  JPL   | 10
                6  |  MIT   | YIBL

 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
               ----+------------+----------
               G32 | 2015_03_20 | 2015018 

 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
               ----+--------+---------------
                0  |  MIT   |  26

 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 G03 |  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 |   -1.8   -1.8   -3.3     -61     -2    -22     .67
       EMR  |   0 |    6.0   11.0    9.7      28    -15     12     .47
       ESA  |   0 |    1.4   -1.1    -.4     -24    -31     49     .49
       GFZ  |   0 |     .2    -.7   -1.9     -14    -90    -10     .67
       GRG  |   0 |   12.3    3.7    3.9      30      0    -35    1.17
       JPL  |   0 |    9.8    -.7   10.6       8     20     35    1.07
       MIT  |   0 |    4.8    1.8    3.0      14     -9    -57     .75
       NGS  |   0 |    8.1     .1   13.4     -29    -68     28     .67
       SIO  |   0 |    7.2   -1.7  -13.9       2    -14    -15     .50

       COD  |   1 |   -1.6   -1.1   -2.6     -40     16    -21     .70
       EMR  |   1 |    5.9    3.7    8.1      35    -16     33     .69
       ESA  |   1 |     .9   -1.2     .6       7    -36     51     .82
       GFZ  |   1 |    1.2   -1.4   -1.9     -18    -95    -56     .77
       GRG  |   1 |   13.4   -6.0   11.1      18     -3    -28    1.30
       JPL  |   1 |    2.7   -6.0    8.2     -38     31     33    1.23
       MIT  |   1 |    6.7   -1.5    3.1       7     -2    -19     .80
       NGS  |   1 |    7.1    1.4   21.8     -61    -83     37     .86
       SIO  |   1 |    8.0   -6.1  -15.4     -13     -7    -44     .65

       COD  |   2 |   -1.3   -1.4   -2.1     -48     -7     -4     .79
       EMR  |   2 |    3.7    3.0   15.1      27     -9     27     .51
       ESA  |   2 |     .8    -.6    1.0      19    -36     62     .76
       GFZ  |   2 |    -.1    -.8   -1.9     -15    -69    -36     .69
       GRG  |   2 |   16.4  -10.5   17.8      19     15     -8     .80
       JPL  |   2 |   10.5   -9.9   11.3     -10     55     -2    1.14
       MIT  |   2 |    4.2   -7.0    4.8     -15      4    -46     .81
       NGS  |   2 |    5.2   -8.2   18.2    -103    -62    -14     .79
       SIO  |   2 |    9.5   -9.5   -6.7     -24      4    -32     .81

       COD  |   3 |   -1.4   -1.6   -1.8     -30     -9      3     .70
       EMR  |   3 |    5.3   -5.0    9.3      11      9      5     .63
       ESA  |   3 |     .1    -.5    1.4       6    -37     58     .68
       GFZ  |   3 |     .2    -.9   -1.9      -6    -69    -49     .63
       GRG  |   3 |   14.4   -8.2    5.6       6    -22    -14    1.13
       JPL  |   3 |    6.8   -7.3    9.8      -1     15     24    1.17
       MIT  |   3 |    5.8   -4.8    4.9      -1     -5    -60     .78
       NGS  |   3 |    7.7   -6.9    8.3     -64    -60     32     .68
       SIO  |   3 |    7.0   -7.6   -9.9     -36     -7    -39     .73

       COD  |   4 |   -1.2   -1.2   -2.6     -35    -12     -4     .97
       EMR  |   4 |    4.5   -1.4    7.6      19     -4     11     .65
       ESA  |   4 |     .2   -1.8    -.2     -29    -28     31     .76
       GFZ  |   4 |     .3   -1.3   -1.7      -4    -69    -38     .71
       GRG  |   4 |   12.1   -7.9    8.1       8      1    -40    1.11
       JPL  |   4 |    3.4   -3.0    9.9     -59     43     31    1.45
       MIT  |   4 |   -1.0   -5.8    2.4     -15      6    -30     .77
       NGS  |   4 |    2.3   -4.0    8.5     -44    -32    -17     .89
       SIO  |   4 |    5.5   -3.7  -11.5     -34    -12    -30     .77

       COD  |   5 |    -.6   -1.3   -2.0     -29    -20    -24     .93
       EMR  |   5 |   -6.2   -4.4   13.5      13     -3      5     .79
       ESA  |   5 |     .4   -2.3     .6       3    -20     34     .84
       GFZ  |   5 |     .2   -1.9   -2.2     -15    -92    -21     .85
       GRG  |   5 |    4.5   -9.5   16.8      -3     10    -13    1.28
       JPL  |   5 |   -1.0   -7.3   11.7      25    -16     34    1.15
       MIT  |   5 |     .5   -8.1    2.1       4      5    -56     .84
       NGS  |   5 |    4.0   -4.9   13.4     -45    -78      9     .95
       SIO  |   5 |    -.4   -5.1   -9.1     -29    -17    -42    1.00

       COD  |   6 |   -1.0   -1.0   -1.7     -25    -18    -11     .79
       EMR  |   6 |   -4.5   -1.1    3.8      21      5     21     .53
       ESA  |   6 |     .8   -2.1     .0     -23    -19     31     .67
       GFZ  |   6 |     .1   -1.4   -1.3      -9    -80     -9     .56
       GRG  |   6 |     .3    3.8    8.9      -1     13      8     .68
       JPL  |   6 |     .4   -3.8    7.1      -8      5     13     .92
       MIT  |   6 |     .8   -2.5    1.5      -5      4    -33     .72
       NGS  |   6 |     .8   -1.1    9.9     -48    -33    -20     .65
       SIO  |   6 |   -2.2   -3.7   -5.2     -38      4    -41     .47


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 1.1836.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1836.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 2.1836.[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 3.1836.[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 5.1836.0-6). 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 1836 summary.                       (Mar 15, 2015 - Mar 21, 2015)

Table 1.1836.a   GPS week: 1836   MJD: 57096.000-57102.000

         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|    0     0    -1    -9     2     8  -.04   15   14 |    -845    -232     18    108
        |    0     0     1    22    21    18   .07           |     367     570
emr   80|    0     0     1     6   -17    38   .12   12   12 |    4020     140     13    147
        |    1     1     1    16    14     8   .01           |    1228    1105
esa  150|    0     1    -1    -8     1    -2  -.41   12   12 |    -637     563     10    154
        |    0     0     0    23    12    18   .06           |     807    1228
gfz  203|    0     0    -4    16   -16   -14   .07   12   11 |    -101     189     11     75
        |    0     1     0    16    16    16   .04           |     398     775
grg  176|    2     0    11   -21    16   -20   .26   16   15 |     -12     252     16    139
        |    1     0     4    19    31    13   .04           |     199     370
igr  n/a|    0     0    -3   -21    -4     4  -.05    5    5 |   -1922     492     16     77
        |    0     0     0    16    16     7   .04           |    1198     953
jpl   80|    0     0     3    13     4    28   .23   11   11 |    4068     148     17    110
        |    0     1     1    15    28    22   .03           |    1235    1100
mit  350|    0    -1    -1    -3     4    -9  -.11   12   11 |    -510      40     44    181
        |    0     0     0    25    33    17   .03           |     381     506
ngs  234|    0     0     1     0     6   -18  -.01   10    9 |    -902     -56   1391   3095
        |    0     0     2    27    33    15   .02           |     320     452
sio  321|   -1     1    -5    -7   -10   -10  -.11   13   12 |     ---     ---    ---    ---
        |    0     0     1    16    22    25   .07           |     ---     ---


Table 1.1836.b   GPS week : 1836   MJD: 57096.000-57102.000   

         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    3    4    4    4 |
   2  |    5    5    5    4    5    5    5 |
   3  |    5    5    5    5    4    4    5 |
   4  |    4    4    3    4    4    4    4 |
   5  |    4    5    4    4    4    4    4 |
   6  |    4    4    3    3    3    4    4 |
   7  |    4    4    4    4    4    4    5 |
   8  |    5    4    6    5    5    5    6 |
   9  |    3    4    3    3    3    4    4 |
  10  |    4    4    4    6    8    9    8 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    5    5    6    6    5 |
  13  |    4    5    5    4    4    5    5 |
  14  |    5    4    5    5    5    5    5 |
  15  |    5    5    5    4    5    5    5 |
  16  |    5    5    5    5    4    5    5 |
  17  |    5    4    5    4    5    5    5 |
  18  |    5    5    5    5    4    5    4 |
  19  |    6    6    5    6    5    6    6 |
  20  |    4    4    4    4    4    4    3 |
  21  |    5    5    5    5    5    4    5 |
  22  |    5    4    4    3    4    4    4 |
  23  |    5    5    5    5    5    5    5 |
  24  |    4    4    4    4    4    4    4 |
  25  |    5    5    4    4    5    4    4 |
  26  |    8    0  ---  ---  ---  ---  --- |
  27  |    4    4    4    4    3    3    4 |
  28  |    4    5    4    4    4    4    4 |
  29  |    6    6    6    5    6    6    6 |
  30  |    3    4    4    4    4    3    4 |
  31  |    5    5    4    4    4    5    5 |
  32  |    4    4    4    4    4    0    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 2.1836.0   GPS week: 1836   Day: 0   MJD: 57096.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  250|    0     1    -1   -29   -25     0  -.04   16   15 |   -1189     227     19    109
emr   80|    0     1     0     2   -36    24   .13   12   12 |    4786    1115     15    171
esa  150|    0     0    -1   -30   -21   -29  -.33   11   11 |    -448     895      9    140
gfz  203|    0    -2    -3    32   -48    -8   .13   12   11 |    -296     760     11     83
grg  179|    2     0    11   -50   -38   -35   .24   17   16 |    -316     707     17    137
igr  n/a|    0     0    -3     0   -27     2  -.01    6    5 |   -2709    1657     17     70
jpl   80|    0     0     2   -15    50    38   .27   10   10 |    4840    1104     18    113
mit  350|    0    -1    -1     3    17    -8  -.14   13   12 |   -1311     793     47    199
ngs  235|    0     1     0    26    54   -17  -.05   10   10 |    -922     -60   1804   3215
sio  323|   -1     0    -5    13   -15     8  -.19   14   13 |     ---     ---    ---    ---

Table 2.1836.1   GPS week: 1836   Day: 1   MJD: 57097.000                            

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  253|    0     0    -1   -15   -27    16   .03   16   16 |   -1465     775     21    114
emr   80|    1     0     0     5     1    43   .10   12   12 |    4887    -149     13    143
esa  150|    0     0    -2   -11    -5    -5  -.34   12   12 |    -285     256      9    159
gfz  208|    0     0    -3     4   -16   -28   .11   12   11 |    -523    1241     10     74
grg  178|    3     0    11     1   -11   -34   .24   16   15 |    -163     532     18    172
igr  n/a|   -1     0    -3   -32   -15     5  -.01    5    5 |   -1922     338     15     79
jpl   80|    0     0     0     8    14    40   .27   10   10 |    4958    -145     16    111
mit  350|    0    -1    -1    21    13    22  -.15   12   11 |    -492      93     44    170
ngs  234|   -1     1     5    -3     6   -26  -.03   10    9 |   -1578     926   1507   3369
sio  327|   -2     1    -7   -14   -18   -22  -.20   13   14 |     ---     ---    ---    ---

Table 2.1836.2   GPS week: 1836   Day: 2   MJD: 57098.000                            

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  253|    0     0    -5   -22     3    40   .02   13   13 |    -474    -805     17    112
emr   80|   -1     3     2    12   -23    34   .12   12   12 |    4543   -1725     15    160
esa  150|    1     0    -3    19    -5     3  -.38   11   11 |      80    -172      9    144
gfz  205|   -1    -1    -5     7    -4   -12   .06   11   11 |     462    -997     10     70
grg  178|    2     0    18   -21    25   -25   .23   15   15 |     145      97     17    127
igr  n/a|    0     0    -4   -22    -7    13  -.10    6    5 |   -1830   -1001     16     82
jpl   80|    0     0     2    30     3   -16   .23   11   11 |    4572   -1698     18    106
mit  350|    0    -2    -1   -37     3   -13  -.12   12   10 |    -241    -575     45    174
ngs  234|    0     0     3    14    11   -13  -.02    9    8 |    -600    -375   1433   3174
sio  326|   -2     0    -8   -26   -28    11  -.14   13   12 |     ---     ---    ---    ---

Table 2.1836.3   GPS week: 1836   Day: 3   MJD: 57099.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  252|    0     0     0     5    12    13  -.01   15   14 |    -687    -486     19    109
emr   80|    0     0     1    17   -13    33   .11   12   12 |    2454     151     12    136
esa  150|   -1     0    -1    24     7    25  -.40   12   12 |    -178    -446      9    152
gfz  205|    0    -2    -3    29   -18   -25   .03   11   10 |    -527     441     10     72
grg  176|    2     0    15   -28    44   -19   .21   17   16 |      72     -94     17    132
igr  n/a|   -1     0    -4     0    18     3  -.05    5    5 |   -3180     470     16     78
jpl   80|    0     2     3    27   -14    16   .22   11   11 |    2512     155     18    114
mit  350|    0    -1     0     3    52   -24  -.11   12   11 |    -500     457     45    191
ngs  238|    0     0     0   -47   -57    -5  -.01    9    7 |    -912    -176   1258   2964
sio  326|   -2     1    -5   -29    28   -22  -.06   13   12 |     ---     ---    ---    ---

Table 2.1836.4   GPS week: 1836   Day: 4   MJD: 57100.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  252|    0     0    -2     0    28    -2  -.09   15   12 |    -842    -373     17     95
emr   80|    0    -1     1     2   -34    36   .14   12   12 |    2291     988     11    128
esa  150|    0     1    -2   -29     6   -14  -.47   12   12 |     -64    -907     11    163
gfz  202|   -1     0    -4    21     6   -28   .04   12   11 |    -238     182     14     72
grg  180|    2     0     9     2    31   -17   .26   14   13 |     -94    -321     14    127
igr  n/a|    0     0    -3   -24    11    11  -.08    5    5 |   -2906    1046     17     73
jpl   80|    0     0     4    13    19    44   .22   11   11 |    2298    1000     16    105
mit  350|    0    -1    -1   -13   -36     5  -.10   12   11 |    -533     222     48    187
ngs  234|    0     1    -1    20    14   -45   .02   11   10 |    -844    -371   1386   2933
sio  323|    0     2    -3    -4   -39    25  -.08   12   10 |     ---     ---    ---    ---

Table 2.1836.5   GPS week: 1836   Day: 5   MJD: 57101.000                            

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     1     0   -31     3   -17  -.16   17   12 |    -468    -789     18    113
emr   80|    0    -2     2   -23    -9    46   .10   13   12 |    3771    1313     13    148
esa  150|   -1     2     0   -32    11    13  -.45   13   13 |   -1967    2045     12    172
gfz  202|    0     0    -3    -9   -18   -12   .07   12   11 |      86    -638     13     87
grg  171|    1    -1     6   -18    46   -17   .29   16   16 |      -8     369     16    149
igr  n/a|   -1     1    -3   -44   -12     1  -.00    6    5 |   -1210    1345     16     93
jpl   80|    0    -1     5    24   -41    31   .18   12   12 |    3849    1332     17    109
mit  350|    0    -1    -1    31    23   -19  -.09   12   12 |    -347    -548     43    179
ngs  231|    0     0     0    14    -7     1   .01   10    9 |    -677    -276   1026   2666
sio  311|    0     2    -5     7     9   -22  -.05   13   12 |     ---     ---    ---    ---

Table 2.1836.6   GPS week: 1836   Day: 6   MJD: 57102.000                            

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  241|    0     0     0    29    19    10  -.01   16   13 |    -795    -177     18    107
emr   80|   -1    -1     0    27    -6    48   .11   12   12 |    5413    -708     14    144
esa  150|    0     1    -1    -3    15    -8  -.48   13   13 |   -1601    2275     11    151
gfz  202|    0     0    -3    31   -15    18   .02   12   11 |     328     335     11     70
grg  176|    4    -1     5   -36    19     5   .32   17   16 |     279     478     15    131
igr  n/a|    0     0    -3   -28     1    -9  -.08    5    5 |     299    -406     17     67
jpl   80|    0     0     3     8     2    45   .23   12   12 |    5450    -709     17    116
mit  350|    0     0    -1   -32   -40   -25  -.06   13   12 |    -148    -157     41    173
ngs  232|    0     1     1   -26    21   -21  -.02   10    8 |    -782     -60   1323   3344
sio  311|   -2     1    -4     2   -10   -49  -.04   13   11 |     ---     ---    ---    ---

       
       
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 3.1836.0   GPS week: 1836   Day: 0   MJD: 57096.000                            

        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  |   13   14   11    8   10    5   10    7   11   10    3 |    29   28   30   26   32   28   32   28   32   31    28
   2  |   12   12    8   19   18    6   10   11   10   18    4 |    19   21   16   27   21   16   21   19   20   12    16
  X3  |   17   12    9   15  ---    5   12   11   14   13    5 |   177  176  173  180  ---  174  174  178  178  180   176
   4  |   16   10   12    9   15    6    9   11   10   15    4 |    31   27   27   31   35   28   30   29   35   34    29
   5  |    8   12   10   10   20    5   15   12    9   10    4 |    38   42   39   41   40   37   39   38   36   38    37
   6  |   11   10   11   11   11    3    7    7    9   11    3 |    40   39   40   35   36   37   40   33   34   39    36
   7  |   10   10   12   11   15    4   10    9    8   12    3 |    29   32   23   32   34   26   29   27   28   22    26
  X8  |   15   10   12   14   14    8    8   15   15  ---    5 |    29   24   23   27    4   24   23   25   25  ---    22
   9  |    9    7   12    7   10    4   10    7    8   11    3 |    34   36   32   36   37   34   37   38   38   40    35
  10  |   12   14    9   11   16    6    7   12    9   13    4 |    87   83   86   82   84   84   84   85   90   83    84
  11  |   12    9   16    9   18    5    9    8   12    8    4 |    42   48   39   46   61   41   46   42   49   40    44
  12  |   14   15    7   12   22    6   14   13   10   11    4 |    39   40   33   44   54   38   43   42   40   36    39
  13  |   13   12   11   13   14    5   12   10   10   15    4 |    32   35   32   37   35   32   37   30   29   29    31
  14  |   28    9   12   13   13    4    9   13   13   17    5 |    46   37   35   48   38   39   37   41   36   43    38
  15  |   20   11   11   15   13    6   12   17   11   17    5 |    44   38   35   36   37   36   39   34   34   30    34
  16  |   15   10    9   15   18    6   13   15   12   20    5 |    22   21   17   24   30   20   23   28   28   24    20
  17  |   11   15   12   16   15    7   13   14   11   14    4 |    25   30   24   34   33   24   30   29   26   25    26
  18  |   16   16    9   12   27    6   11   13   10   13    5 |    22   25   20   25   34   19   24   22   22   20    19
  19  |   21   11   10   13   17    8   13   24   13   18    5 |    27   28   22   26   31   20   26   24   28   20    22
  20E |    7   13    8   11   16    5    9   12   10    9    3 |    22   21   21   25   26   21   23   28   28   24    22
  21  |   25   10    8   16   20    5    9   10    8   18    5 |    30   24   20   29   33   21   27   20   24   17    21
  22  |   30   13   10    8   24    5    9   11   10   10    5 |    30   22   19   27   25   20   23   23   23   20    20
  23  |   13   10   12   14   12    6   10   17   16   16    4 |    26   32   27   33   25   27   30   27   31   26    26
  24  |   12    8   11    8   12    4    8   11    8   10    3 |    24   26   24   25   30   24   26   20   22   23    23
  25E |   22   20   12   13   20   17   10   10    9    9    5 |    97   96   95   94   97   97   93   91   92   94    94
 X26  |   18   13   12  ---  ---   15  --- 6852   10  ---    7 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  27  |   11    6   12   10   12    5    7    9    8   10    3 |    27   33   24   30   40   26   29   26   29   24    27
  28  |   11   13    7   11   20    6    8   12    8   11    4 |    31   31   25   30   39   27   30   26   27   25    27
  29  |   17   10   12   14   17    7   13   22   13   21    5 |    31   32   25   33   35   25   30   31   28   34    27
  30  |   12    9   11    7    9    3   10    9    7   10    3 |    27   33   30   29   35   28   32   27   28   27    28
  31  |   14    9   13   14   18    3   14   17   12   16    5 |    26   31   22   31   36   25   33   24   26   21    24
  32  |   16    7    8   11   12    6    8   10   11   11    3 |    30   24   23   23   25   25   24   25   28   25    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   12   11   12   17    6   10   13   10   14      |T   39   39   35   40   37   36   39   37   38   36    36
 WRMS |   15   12   11   11   16    5   10   12   10   13      |NE  31   32   28   34   34   28   32   29   30   28    28
 MEDI |   13   10   11   12   15    5   10   11   10   12      |MD  30   32   25   31   35   27   30   28   28   26    27

Table 3.1836.1   GPS week: 1836   Day: 1   MJD: 57097.000                            

        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  |   12   10   11   10   10    5    8    6    7   12    3 |    32   33   32   29   33   29   35   27   30   31    30
   2  |   15   12    9   19   14    4   10   11   11   16    4 |    24   23   16   27   21   18   23   18   22   12    17
  X3  |   15   14    9   12  ---    6   11   12   13   11    4 |   122  126  124  128  ---  126  122  126  125  131   125
   4  |   12    7   12   10   18    6    8    7    9   12    3 |    29   28   27   28   31   28   31   26   29   31    27
   5  |   12   16   10    8   17    4   16    9   10   10    4 |    53   59   55   58   58   54   57   55   52   58    55
   6  |   13   14   11   10   11    3    6    9    8   10    3 |    31   32   34   30   35   31   37   30   30   31    31
   7  |   10    9   11   11   16    4   10    9    8   15    4 |    28   31   24   30   31   25   30   28   25   24    25
  X8  |   10    7   13   11  ---    8    7   11   10  ---    4 |    27   26   26   27  ---   24   25   22   21  ---    23
   9  |   11    8   12    9   13    5    6   12    5   13    3 |    34   37   32   36   36   32   36   34   31   36    33
  10  |   19   12    9   10   16    6    9   12    7   10    4 |    64   58   56   55   53   58   55   56   57   59    56
  11  |   15    9   17   12   19    6    8    7   11   12    4 |    31   37   33   35   48   31   38   31   35   32    33
  12  |   22   17    9   12   20    4   13   14   11   12    5 |    34   35   25   34   43   30   35   30   29   28    30
  13  |   18   13   12   11   12    6   11   12   12   16    4 |    36   30   25   24   30   23   33   19   21   22    24
  14  |   14    9   13   13   14    4    9   10   11   16    4 |    40   42   40   51   40   42   43   40   42   41    41
  15  |   18   13   13   13   13    4   11   15   12   18    5 |    40   34   34   36   33   32   36   34   31   27    31
  16  |   15   12   12   12   20    7   12   16    8   16    4 |    30   30   25   30   33   26   27   29   26   25    25
  17  |   12   12   11   15   12    7   12    9   11   13    4 |    22   29   22   27   27   21   30   21   25   19    22
  18E |   19   16   11   13   30    6   12   12   11   10    5 |    25   26   20   27   26   21   25   23   21   22    21
  19  |   22   11   12   13   18    8   11   23   10   15    5 |    29   28   24   27   23   22   28   22   22   17    22
  20E |   21   12    6   12   17    4    8   14    8   11    4 |    27   22   19   23   26   21   20   25   21   20    19
  21  |   17   13   11   16   18    4   10    9   11   15    4 |    30   26   22   28   33   23   30   23   23   18    23
  22E |   18   11   10    9   20    6   10   10    9    9    4 |    22   21   16   23   22   18   20   20   20   19    18
  23  |   16   10   12   15   13    4   10   20   11   18    5 |    26   29   23   27   23   21   29   24   19   17    21
  24  |   15    8   15    7   11    4   10   10   10    8    3 |    27   30   32   33   36   31   30   28   30   31    30
  25E |   16   16   14    6   16    4   10    9   13   13    4 |    38   38   40   39   37   38   38   37   35   38    36
 X26  |    2  ---  ---  ---  ---  245  ---  ---  ---  ---    0 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  27  |   19    7   14   11   13    7    6    8    9   10    3 |    26   28   21   25   31   20   28   21   24   19    23
  28  |   16   15    7   12   20    5   10   12   12    9    4 |    40   32   29   33   39   30   35   30   28   28    30
  29  |   16   13   15   13   17    6   13   22   12   16    5 |    30   28   22   28   29   22   27   22   24   26    23
  30  |   12   10   11    7   13    4   11    8    5   10    3 |    31   33   32   30   31   30   34   32   30   30    31
  31  |   22   10   13   10   20    5   11   12   12   16    4 |    37   32   27   31   36   27   34   24   28   19    27
  32  |   14   11   11   12   11    5    9    9    8   11    3 |    27   25   25   23   22   23   24   25   27   28    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   12   12   12   16    5   10   12   10   13      |T   35   35   31   34   33   31   35   31   31   31    31
 WRMS |   16   12   12   11   15    5   10   11    9   14      |NE  30   31   26   30   31   26   32   26   26   25    26
 MEDI |   15   12   11   12   16    5   10   11   10   12      |MD  30   30   26   30   33   27   31   27   28   27    27

Table 3.1836.2   GPS week: 1836   Day: 2   MJD: 57098.000                            

        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  |    9   12   11   10    9    4    9    7    9   10    3 |    25   25   26   24   26   24   28   20   27   26    23
   2  |   14   13    9   16   17    5   11   11   10   15    4 |    25   26   20   25   23   19   26   19   22   19    19
  X3  |   16   17   12   12  ---   13   13   15   13   13    5 |   180  184  178  184  ---  178  182  180  184  183   181
   4  |   11    9   11    9   12    4    9    6    7   11    3 |    25   25   23   27   31   25   26   22   29   26    24
   5E |   17   12   13    9   15    8   14   11    8    9    4 |   104   99   96  107  100   97   98  105  100   98    99
   6  |    9   10   11   10   12    4    8    6    7   12    3 |    38   36   39   37   35   37   38   36   36   44    36
   7  |    9   11   10   13   16    5   11   13   10   16    4 |    30   28   23   30   28   24   31   22   31   21    24
  X8  |   15   13   15   14  ---    6   11   11   14  ---    5 |    26   26   22   23  ---   20   24   21   26  ---    21
   9  |    8    7   10    8   10    6    8    9    6   14    3 |    31   29   28   29   30   29   34   29   31   31    28
  10  |   10   16   10   13   16    7   11   14    7   13    4 |    71   72   69   71   74   71   72   70   69   70    70
  11  |    8   10   17   10   15    6    9    9    8    8    3 |    32   38   31   36   48   32   37   31   37   29    33
  12  |   19   16    7   11   23    5   16   11   10   13    5 |    40   40   28   39   46   33   42   38   38   35    36
  13  |   12   13   11   10   14    6   12   11   13   16    4 |    33   35   31   32   32   30   37   28   31   26    29
  14  |   17   15   12   15   15    5    8   11   10   16    4 |    39   37   32   48   34   37   37   34   39   39    36
  15  |   10   12   15   12   12    4   12   13   11   17    4 |    37   34   31   38   36   30   36   35   34   30    32
  16  |   16   11    9   14   16    8   11   16   10   17    4 |    25   23   19   27   26   20   23   22   24   18    20
  17  |   14   13   12   12   13    6   13   15   10   15    4 |    28   32   22   24   31   21   33   29   25   19    24
  18E |   12   16    7   14   20    6   13   10   10   11    4 |    27   29   23   29   28   24   28   25   26   28    25
  19  |   17    9   12   15   14    7   10   25   12   14    5 |    26   28   21   27   29   20   26   22   24   17    21
  20E |    8   11    7   10   13    4   11   12    8   10    3 |    21   20   15   21   23   17   20   23   23   18    18
  21  |   17   11   11   12   20    5    9    9   11   15    4 |    23   26   20   23   31   18   25   17   24   14    19
  22E |   11   10    9    8   18    5    9    6   10   11    3 |    18   18   12   19   24   14   20   16   21   23    16
  23  |    9   12   10   13   12    5   10   15   15   16    4 |    28   29   24   27   20   23   32   22   28   21    23
  24  |   13    9   14    8   16    4   10    8    6    9    3 |    25   28   24   27   26   24   28   23   26   26    24
  25E |   13   10   14    6   17    6   12    7    8    8    4 |    36   32   34   31   31   31   31   29   32   32    30
  27  |   17    7   14   10   10    7    7    7    8   10    3 |    26   29   22   27   35   23   28   23   26   21    24
  28  |   11   13    7   10   19    6   11   17    7    9    4 |    27   28   23   27   30   24   29   17   28   22    22
  29  |   19   11   14   12   16    8   13   22   10   19    5 |    28   31   26   29   33   24   30   26   28   33    27
  30  |   13   10   12    9   14    5    9   17    9   10    4 |    39   38   39   38   35   34   41   32   43   34    35
  31  |   10    9   13   12   19    4   10   10   10   14    4 |    24   28   19   26   36   23   31   22   25   19    23
  32  |    9   10    9    9   12    5   10    9    9   10    3 |    22   21   21   18   26   24   23   23   26   21    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   12   11   11   15    6   11   12    9   13      |T   37   37   33   37   34   33   38   34   37   34    34
 WRMS |   13   12   11   11   15    5   11   10    8   12      |NE  30   31   27   31   31   26   32   26   30   26    27
 MEDI |   12   11   11   11   15    5   11   11   10   13      |MD  28   29   24   27   31   24   31   23   28   26    24

Table 3.1836.3   GPS week: 1836   Day: 3   MJD: 57099.000                            

        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   11   11    7   13    5    7    4    5   10    3 |    27   32   28   27   32   26   33   25   27   30    28
   2  |   12   12   10   14   15    4   12   10    9   15    4 |    24   26   18   23   24   18   27   17   18   15    18
  X3E |   13   16   13   10  ---   10   11   13    9    9    4 |   113  116  111  115  ---  113  115  115  113  117   113
   4  |   11    9   11    7   17    4    9    8    6   11    3 |    30   31   27   29   38   27   31   27   30   30    29
   5E |    9   12    7    8   17    5   17   11   10    9    4 |    44   46   40   43   47   43   49   41   42   43    43
   6  |   11   10   11    9   13    5    7    7    6   10    3 |    35   36   36   32   35   34   39   33   32   38    34
   7  |   16   10   13   12   15    4   12    9    8   13    4 |    28   30   23   30   30   26   29   27   26   24    25
  X8  |    9    9   14   14  ---    8    7    9   11  ---    4 |    26   27   26   28  ---   27   29   23   27  ---    25
   9  |   10    8   13    9   15    4    7    6    6   12    3 |    37   39   35   38   39   37   40   39   40   42    38
  10E |   22   20   11   12   19    8   15   14   12   15    5 |    67   68   69   67   67   71   71   74   74   68    68
  11  |   10    9   18    7   20    6    8    6    8    9    3 |    40   46   37   44   57   38   46   39   45   39    42
  12  |   19   17    8   10   20    3   15   14   11   13    5 |    48   49   38   48   57   45   51   49   47   45    46
  13  |    7   15   12   14   12    5   12   12   10   13    4 |    29   35   28   30   32   29   35   28   25   26    28
  14  |   16   12   13   16   13    4   11   12    9   15    4 |    41   39   37   50   37   40   40   36   37   39    39
  15  |    9   14   14   13   11    4   12   11    9   15    4 |    42   42   39   41   41   38   41   39   41   32    38
  16  |   13   13   10   12   19    7    9   11   11   21    4 |    26   26   22   25   31   23   25   22   22   22    22
  17  |   10   11   12   11   14    6   15   12    9   14    4 |    27   31   22   26   30   21   33   29   26   24    25
  18E |   18   14    8   13   24    7   11   12    9   12    4 |    31   28   24   26   28   23   27   23   20   23    23
  19  |   20   10   12   16   22    7    9   24   10   17    5 |    26   26   20   26   29   19   26   19   21   15    20
  20E |   12   14    8    8   21    5    9   15    8    9    4 |    23   26   21   22   31   21   25   29   26   25    23
  21  |   18   11   11   11   17    5    9   11   10   17    4 |    31   29   25   31   35   26   30   26   27   23    26
  22E |   15    8    9   10   11    5    9    7    6    9    3 |    24   23   19   22   24   19   22   22   24   22    21
  23  |    9   12   11   19   11    5   10   15   11   16    4 |    27   33   27   34   28   27   33   26   29   25    27
  24  |   10    9   13    8   15    3    8    7   10    9    3 |    24   27   25   28   30   25   26   23   26   28    25
  25E |   14   10   13    7   18    5   11    8    8   11    4 |    31   29   31   28   32   29   29   27   30   26    28
  27  |   14    9   13   10   16    5    7    8    5   10    3 |    27   33   26   29   38   25   31   24   26   23    27
  28  |   20   12    7   10   21    5    8   11    6    8    4 |    35   29   25   31   39   29   32   27   27   28    28
  29  |   14   13   15   11   18    7   11   22   11   18    5 |    29   30   23   27   33   23   30   27   24   32    25
  30  |   25    9   14    7   14    4    9   12    6    9    4 |    29   23   25   22   28   23   27   23   21   21    22
  31  |   14   10   14   10   19    5    9    8    8   14    4 |    28   31   22   28   35   25   32   22   27   21    25
  32  |   14    9    9    8   15    6    8    9    8   11    3 |    29   28   25   21   27   27   27   29   22   30    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   15   12   12   11   17    5   11   12    9   13      |T   34   35   31   34   35   32   36   32   32   32    32
 WRMS |   14   12   12   10   16    5   11   11    7   12      |NE  31   32   27   31   33   27   33   28   28   27    28
 MEDI |   13   11   12   10   16    5    9   11    9   12      |MD  29   31   26   29   32   27   31   27   27   26    27

Table 3.1836.4   GPS week: 1836   Day: 4   MJD: 57100.000                            

        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  |    9   10   12    9    9    3   11    8   10   10    3 |    20   26   22   19   25   19   25   20   23   25    21
   2  |   14   16    8   17   13    4   12   11    9   14    4 |    23   26   16   22   22   17   24   17   16   14    17
  X3E |   13   14   14   10  ---    7    9    9    9    7    4 |   102  107   98  101  ---  100  104  105  102  104   102
   4  |   12    9   14    7   12    4    9    8   12   10    3 |    30   29   25   29   29   25   28   22   29   29    26
   5E |   10   13    9   10   12    5   15   10    8    8    3 |    26   27   17   22   25   20   25   23   21   23    22
   6  |    9   10   13    8    8    4    8   10    8    6    3 |    30   36   32   30   34   31   34   30   30   30    31
   7  |   10   11   13   10   13    3   11    8    8   14    4 |    22   26   18   23   27   18   24   20   18   13    18
  X8  |   13   11   17    9  ---    8    9    6   13  ---    4 |    23   27   23   20  ---   20   23   20   25  ---    21
   9  |    8   10   13    9    8    4    8    6    9   11    3 |    30   37   32   34   37   32   33   34   32   36    33
  10E |   47   19   14   17   15    7   18   17   12   16    7 |    76   67   67   64   61   66   67   64   68   62    63
  11  |   11    9   19    9   14    5   10    8   12    6    4 |    39   44   35   42   50   37   45   35   43   38    40
  12E |   16   19    9   12   25    7   17   12   12   11    5 |    61   59   53   58   59   56   60   59   55   57    57
  13  |    8   13    9   14   12    5   12   12   10   14    4 |    26   32   26   26   30   26   32   26   27   22    25
  14  |   14   13   14   14   12    4   11    9   15   15    4 |    40   36   34   49   38   40   38   40   43   37    38
  15  |   13   14   12   15   11    4   13   13   11   14    4 |    38   38   33   33   34   30   38   33   30   30    32
  16  |   12   12   10   13   15    5   11   14   11   13    4 |    29   29   20   30   33   26   30   26   26   20    25
  17  |    9   16   12   14   11    7   12   15   10   13    4 |    24   32   21   24   27   21   29   30   22   22    23
  18E |   18   11    9   13   16    5   10   10   12   10    4 |    26   30   25   26   31   25   29   25   27   25    26
  19  |   16   12   12   14   14    8   11   23   11   15    5 |    23   27   20   26   23   19   26   21   19   18    20
  20E |   14   14    8   11   15    6   10   10    9    8    4 |    26   26   22   24   26   22   23   26   25   24    23
  21  |   14   10   12   12   15    3   11   12   14   17    4 |    22   23   18   22   28   17   25   21   20   12    18
  22E |   12   10    8    9   11    5   10    6   12    9    3 |    21   19   17   22   22   18   20   17   22   23    19
  23  |   10   11   11   12   10    4   13   13   14   17    4 |    23   26   20   23   22   19   26   20   26   18    20
  24  |   11    9   14    7   12    3    7    9   11    5    3 |    20   23   22   24   27   21   24   20   21   20    21
  25E |   12   12   16   26   13    6   11    9   11   11    5 |    30   26   29   39   27   27   26   24   27   24    26
  27  |   12    9   13    8   10    5    8    7    7    6    3 |    23   31   23   26   32   24   30   23   23   22    25
  28  |   14    9    8   10   21    5    7   14    7    6    4 |    28   24   17   24   39   22   25   27   21   24    23
  29  |   16   13   13   10   18    7   15   20   12   17    5 |    30   28   22   26   26   22   29   26   25   33    24
  30  |   12    9   14    8   10    4    9   10    6    6    3 |    20   23   21   18   24   17   22   19   18   15    18
  31  |   12   12   15   10   18    5   10    7   11   11    4 |    21   29   20   28   35   24   30   25   25   22    24
  32  |   12   13    9    9   13    5    9   11   14   11    4 |    28   34   29   26   31   24   29   31   27   33    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   15   12   12   12   14    5   11   12   11   12      |T   31   33   28   31   31   28   33   29   30   29    29
 WRMS |   12   12   12   11   13    5   11   11   10   10      |NE  27   30   24   28   29   24   29   26   26   23    25
 MEDI |   12   12   12   10   13    5   11   10   11   11      |MD  26   29   22   26   29   24   29   25   25   24    24

Table 3.1836.5   GPS week: 1836   Day: 5   MJD: 57101.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   1M |    9    9   14    7   14    9   11    7    8    7    3 |    22   26   22   21   27   21   26   22   19   23    22
   2  |    9   13   12   17   15    4   12   12    9   16    4 |    18   25   16   22   22   18   25   18   14   11    16
  X3E |   13   14   14    9  ---    7   11    9   10   11    4 |    98  104   99   99  ---  100   99  101   96  102    99
   4M |   15    8   12    7   22    7    9    9    8   11    4 |    27   25   24   24   31   26   29   23   23   28    25
   5E |    8   13    7   14   19    4   15   11    9   11    4 |    25   30   25   30   25   26   29   24   24   25    25
   6  |    8   10   14   11   11    5    7   10    7   10    3 |    29   36   32   28   32   29   34   31   30   28    30
   7  |   11   11   13   10   15    5   10   14    8   14    4 |    25   28   23   26   30   24   26   24   22   20    23
  X8M |   13   13   15   14  ---    8    6    8   12  ---    4 |    26   31   25   22  ---   26   26   21   23  ---    23
   9  |    8    7   14   10   14    4   10    9    8   14    3 |    35   36   36   36   37   34   34   33   33   39    34
  10E |   61   33   17   19   17    8   19   18   15   19    9 |    72   74   71   71   66   69   71   71   71   66    67
  11  |   10   10   19   10   18    8   11    7    8   10    4 |    31   37   29   35   44   31   38   30   30   30    31
  12E |   22   18   12   14   28    5   15   13   10   11    5 |    37   38   30   37   40   34   36   37   36   34    33
  13  |    8   15   11   16   12    5   13   11   11   16    4 |    23   30   24   23   30   22   30   23   22   21    22
  14  |   17   12   14   15   15    7   13   15   11   14    5 |    50   50   48   61   50   51   53   52   57   53    52
  15M |   13   13   14   15   12    3   14   14   11   15    4 |    36   42   39   38   38   38   42   37   36   29    36
  16  |   17   11    9   14   18    7   11   11    9   19    4 |    53   49   49   51   53   51   51   56   51   54    50
  17  |    8   14   13   12   12    7   15   14   10   13    4 |    23   33   20   24   27   22   29   28   22   20    23
  18E |   25   10    8   13   18    6   13   13    9   13    5 |    33   26   22   27   28   22   25   23   23   23    23
  19  |   16   12   14   15   20    8   12   25   12   16    5 |    23   27   21   23   24   18   24   18   16   14    18
  20E |   10   18    8    9   13    7   10   13    6   10    4 |    22   32   20   23   24   23   26   24   24   23    23
  21  |   11   13   11   14   16    4   11    9    7   14    4 |    25   27   22   25   29   22   26   23   20   19    21
  22E |   11    9    8    8   13    4   12    8    9   12    3 |    20   21   18   19   24   18   20   16   17   21    18
  23  |   12   16   11   13   14    5   11   11   12   20    4 |    25   32   25   25   28   25   28   21   21   21    23
  24M |   11   10   14    6   13    3   10   10   10    8    3 |    24   28   27   28   31   27   28   23   25   28    25
  25E |   21   11   15    8   15    5    9   12    9   10    4 |    32   28   28   33   28   28   26   26   26   25    26
  27M |    8    9   13    8   12    4    8    7    9    7    3 |    19   28   20   22   30   20   25   20   22   19    20
  28  |   14    8    8    8   16    5    8   11    6    9    3 |    36   34   31   33   39   33   35   33   32   31    32
  29  |   15   15   14   13   19    7   14   21   11   17    5 |    28   32   24   29   29   26   31   25   27   35    27
  30  |   13    9   13    6   11    5    8    4    7    8    3 |    23   24   23   19   24   20   23   19   21   16    20
  31M |   10   14   16   12   22    7   12    7   11   12    4 |    25   33   23   30   38   29   31   23   25   23    26
 X32  |    3  ---  ---  ---  ---   29  ---  ---  ---  ---    0 |    28  ---  ---  ---  ---   27  ---  ---  ---  ---    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   17   13   13   12   16    6   12   12   10   13      |T   32   35   30   32   33   30   34   30   30   30    30
 WRMS |   12   12   13   11   16    5   12   12    9   12      |NE  27   32   26   28   31   26   30   26   25   25    26
 MEDI |   11   12   13   12   15    5   11   11    9   12      |MD  26   31   24   27   30   26   29   24   24   25    25

Table 3.1836.6   GPS week: 1836   Day: 6   MJD: 57102.000                            

        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  |   11   11   13    8   11    4   11    7    6   10    3 |    24   25   22   20   27   21   25   21   21   26    21
   2  |   10   14   11   16   14    5   13   17   10   14    4 |    19   26   18   27   28   18   27   25   20   14    19
  X3E |   15   15   14   12  ---    7   11    7   12    9    4 |   108  110  104  107  ---  107  108  107  109  112   107
   4  |   13   10   12    7   25    6   10   13    9   12    4 |    31   25   23   27   40   24   27   24   30   27    26
   5E |   11   12   10   10   20    5   17   11    7    9    4 |    33   32   27   28   36   27   31   31   32   32    29
   6  |   10    8   13    8   13    3    8   13    6   10    3 |    32   36   33   31   32   32   34   30   32   34    31
   7  |    7    9   15   11   17    3   10   19    9   12    4 |    26   26   20   27   30   21   27   26   22   21    22
  X8  |   12   17   16   13  ---    8    8    9   15  ---    5 |    23   25   20   25  ---   21   23   20   24  ---    20
   9  |   10   11   14   10   14    5    8   10    7   13    3 |    29   31   30   30   34   29   32   33   30   37    30
  10E |   50   13   15   17   18    6   16   15   12   16    7 |   102   93   96   93   96   94   94   93  100   93    94
  11  |   11    9   19    9   18    4    9    8   10    7    4 |    46   46   43   47   58   42   49   41   47   41    44
  12E |   19   18    8   13   26    4   14    9   13    9    5 |    39   35   29   37   39   32   36   33   37   33    33
  13  |   12   14   10   17   14    6   14   10   13   17    4 |    31   35   31   35   38   30   35   30   34   26    30
  14  |   16   12   17   14   18    5   12   11   14   14    5 |    43   38   34   51   44   42   38   40   42   41    40
  15  |   10   12   13   14   13    5   15   10   12   15    4 |    46   46   43   47   50   43   48   44   45   43    44
  16E |   17   11    9   13   17    5   12   12   10   21    4 |    43   42   37   45   49   39   44   44   39   42    41
  17  |    9   14   14   15   11    6   15   13    9   13    4 |    26   30   21   33   33   24   33   33   28   24    27
  18E |   14   12    7   14   21    5   14   12    6   11    4 |    39   35   31   36   36   31   35   27   31   30    31
  19  |   18   11   12   15   19    8   11   24   11   18    5 |    29   28   22   28   28   21   29   22   21   17    22
  20E |    9   11    8   10   11    3   10   10    6    9    3 |    25   21   17   23   25   19   22   26   21   22    20
  21  |   15   13   11   14   18    6   12   13    9   14    4 |    28   27   23   28   33   22   27   23   26   22    23
  22E |   12   11    8    9   16    4   11    8   10    7    3 |    19   19   16   21   21   16   20   16   19   19    17
  23  |   15   10   13   17   16    7   11   12   10   17    4 |    24   26   21   30   25   22   26   20   21   20    20
  24  |   11   10   15    7   20    4   13   13    7    8    4 |    25   25   22   26   27   20   22   23   23   26    21
  25E |   14   10   17    8   16    6   11    9    7   10    4 |    40   39   43   43   41   41   40   39   39   38    39
  27  |   10    7   14   10   15    4    8    7    8   10    3 |    33   37   31   36   43   32   35   34   32   30    33
  28E |   13    9    8   11   17    7    7    8    9    8    3 |    37   36   33   37   38   32   37   31   33   31    33
  29  |   14   15   14   13   16    7   16   21   13   15    5 |    30   31   22   30   33   25   31   30   30   33    27
  30  |   12    9   14   10   12    3    9    7    7    6    3 |    24   24   23   23   26   20   26   17   22   21    20
  31  |   13   13   15   12   19    5   14    8   12   12    4 |    26   30   19   28   35   24   32   23   25   20    24
  32E |   12   12   12   15   14    8   14   16   12   15    4 |    22   12    6    8    5   22   13    6    7    9    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   12   13   12   17    5   12   13   10   13      |T   35   35   30   35   36   32   35   32   33   32    32
 WRMS |   13   12   13   11   16    5   12   12    8   11      |NE  29   31   26   32   34   26   31   28   28   27    27
 MEDI |   12   11   13   12   16    5   11   11   10   12      |MD  30   31   23   30   34   25   32   30   30   27    27



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 4.1836   GPS week: 1836   MJD: 57096.0-57102.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2979 |U    7     6    17 |U    7    11    27 |U    8    10    23 |
emr | emr 2973 |     6     8    20 |U    8     9    24 |     7     7    18 |
esa | esa 2976 |     6     6    19 |U    7    10    26 |     7     7    18 |
gfz | gfz 2960 |U    5     5    15 |U    8     9    28 |U    7     8    17 |
grg | grg 2783 |     7     6    16 |U    9    11    31 |U    9    10    21 |
igr | igr 2968 |     6     5    17 |     7     9    25 |     6     7    16 |
igs | igs 2966 |     5     5    16 |     7     9    25 |     6     8    16 |
jpl | jpl 2960 |     7     7    18 |U    7    10    27 |U    8     6    19 |
mit | mit 2976 |     6     5    17 |U    8    10    29 |U    6     9    17 |



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 5.1836.0   GPS week: 1836   Day: 0   MJD: 57096.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |     6     7    16 |     6    13    27 |     9    12    30 |
emr | emr 3068 |     5     6    17 |     6    10    20 |     8     9    23 |
esa | esa 3072 |     6     6    13 |     5    11    22 |     8    10    22 |
gfz | gfz 2976 |     5     4    11 |     5    11    25 |     8    12    20 |
grg | grg 2880 |     6     6    11 |     8    11    29 |    10    14    21 |
igr | igr 3034 |     5     6    17 |     5    11    22 |     8    10    21 |
igs | igs 3049 |     5     5    13 |     5    10    23 |     7    11    21 |
jpl | jpl 2976 |     6     5    13 |     5    11    27 |    10    10    29 |
mit | mit 3072 |     7     7    24 |     6    11    28 |     7    12    20 |

Table 5.1836.1   GPS week: 1836   Day: 1   MJD: 57097.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3039 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
emr | emr 2976 |     5     7    20 |     8     8    28 |     5     4    12 |
esa | esa 2976 |     6     5    17 |     7     9    26 |     4     4    10 |
gfz | gfz 2976 |     5     4    14 |     7     8    26 |     5     5    12 |
grg | grg 2784 |     5     4    21 |    10    10    32 |     7     6    17 |
igr | igr 2976 |     5     4    15 |     7     8    25 |     5     4    11 |
igs | igs 2976 |     5     5    15 |     7     8    26 |     4     3    10 |
jpl | jpl 2976 |     7     8    15 |     7     9    28 |     7     3    14 |
mit | mit 2976 |     4     3    12 |     7    10    26 |     5     6    13 |

Table 5.1836.2   GPS week: 1836   Day: 2   MJD: 57098.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     6    18 |     8    12    37 |     8     9    21 |
emr | emr 2976 |     7    12    19 |     8    10    34 |     7     8    20 |
esa | esa 2976 |     5     7    18 |     7    11    34 |     7     8    19 |
gfz | gfz 2976 |     5     6    15 |     8    10    38 |     7     7    16 |
grg | grg 2784 |     7     6    17 |     9    11    40 |    11    10    22 |
igr | igr 2976 |     6     6    14 |     7     9    35 |     7     7    17 |
igs | igs 2976 |     6     8    15 |     7    10    35 |     7     8    16 |
jpl | jpl 2976 |     9    12    17 |     7    12    36 |     8     6    20 |
mit | mit 2976 |     7     5    16 |     8    10    42 |     7     9    17 |

Table 5.1836.3   GPS week: 1836   Day: 3   MJD: 57099.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     4    15 |     9    13    28 |     7    11    22 |
emr | emr 2976 |     4     8    19 |     9     9    22 |     7     6    17 |
esa | esa 2976 |     4     4    19 |     8     9    27 |     7     6    16 |
gfz | gfz 2972 |     4     4    16 |     8     9    25 |     7     9    18 |
grg | grg 2784 |     7     6    15 |    11    16    33 |     8    11    25 |
igr | igr 2976 |     4     5    15 |     7     9    23 |     7     8    18 |
igs | igs 2976 |     3     4    15 |     8     9    23 |     7     8    17 |
jpl | jpl 2976 |     5     6    17 |     8    11    27 |     9     8    17 |
mit | mit 2976 |     5     4    13 |     8    10    25 |     6     9    19 |

Table 5.1836.4   GPS week: 1836   Day: 4   MJD: 57100.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     6    18 |     9    10    27 |     6     9    21 |
emr | emr 2972 |     6     7    19 |     8     9    23 |     7     7    20 |
esa | esa 2976 |     6     7    20 |     8    11    29 |     7     6    21 |
gfz | gfz 2972 |     6     6    16 |    12    10    39 |     7     9    20 |
grg | grg 2783 |     7     7    16 |    10    11    31 |     9     8    19 |
igr | igr 2976 |     7     6    17 |     8    11    27 |     6     7    19 |
igs | igs 2976 |     6     6    17 |     8    11    27 |     6     8    19 |
jpl | jpl 2972 |     8     8    19 |     8    10    28 |     7     5    21 |
mit | mit 2976 |     7     5    15 |    10    11    35 |     6     8    18 |

Table 5.1836.5   GPS week: 1836   Day: 5   MJD: 57101.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2880 |     8     6    17 |     7     8    24 |     7     9    22 |
emr | emr 2876 |     7     5    20 |     9     7    23 |     8     8    22 |
esa | esa 2880 |     7     5    22 |     9     8    19 |     9     9    21 |
gfz | gfz 2876 |     6     4    17 |     8    10    24 |     7     9    16 |
grg | grg 2688 |     9     8    16 |     8     9    30 |     8     8    21 |
igr | igr 2864 |     6     4    16 |     8    10    20 |     7     7    16 |
igs | igs 2849 |     6     3    18 |     8     9    19 |     7     8    17 |
jpl | jpl 2875 |     9     6    20 |     9     6    21 |     9     8    20 |
mit | mit 2880 |     6     3    17 |     9     9    24 |     7    10    20 |

Table 5.1836.6   GPS week: 1836   Day: 6   MJD: 57102.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     5    20 |     6    12    24 |     9     9    23 |
emr | emr 2972 |     8     8    23 |     6     9    19 |     6     7    15 |
esa | esa 2976 |     8     6    24 |     6     9    23 |     6     7    14 |
gfz | gfz 2972 |     7     5    18 |     7     8    22 |     7     9    15 |
grg | grg 2784 |     8     5    18 |     7    12    24 |     8    10    21 |
igr | igr 2976 |     7     6    22 |     6     8    21 |     6     6    13 |
igs | igs 2966 |     7     5    20 |     6     9    19 |     6     7    14 |
jpl | jpl 2972 |     9     7    22 |     8     9    22 |     7     5    15 |
mit | mit 2976 |     7     5    20 |     7     9    24 |     6     8    14 |


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 6.1836   GPS week: 1836   MJD: 57096.500-57102.500

                                                         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 |      -5      27     -40      76     -8 |      20     23
            |      25      16      85     131      8 |       2
emr   uuuuu |      12     -30     136      52      1 |      12     18
            |      13      25     127      55     10 |       3
esa   uuuuu |       1      12      63      79     -8 |      34     35
            |      25      23      42      85     10 |       2
gfz   uuuuu |     -20     -53     175    -181     -2 |      19     22
            |      21      19      98      79      6 |       1
grg   uuuux |     -11      27    -238      37     22 |      40     44
            |      24      14      59     126     33 |       7
igr   xxxxx |       7      24      30      62      0 |       3     10
            |      22      16      40      58      5 |       1
irf   xxxxx |      12     -10      -1     -25     -1 |       2     10
            |      11       9      48      27      4 |       1
jpl   uuuuu |      14      -7     111      -3     -1 |      37     39
            |      30      15      60      89     10 |       1
mit   uuuuu |       9      18     -80     -85      0 |      21     23
            |      21      12      80      66      5 |       1
ngs   uuuuu |     -19      -5    -156      81      2 |       7     12
            |      26      31      87      83      2 |       2
sio   uuuux |      19      33     -55     -56      5 |      55     57
            |      29      22      61      76     10 |       4


Table 7.1836.0   GPS week: 1836   Day: 0   MJD: 57096.500

                                                         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 |       4      52    -112    -110    -17 |      23     25
emr   uuuuu |      21     -61     282     110     -7 |      17     19
esa   uuuuu |      40      28     128     187      8 |      34     35
gfz   uuuuu |       7     -81      99    -211      8 |      19     21
grg   uuuux |      26      31    -200      87     -5 |      34     37
igr   xxxxx |      23       7      80      29      9 |       3      8
irf   xxxxx |      26       5     -70      -7      6 |       2      7
jpl   uuuuu |     -45       7     150      76     17 |      36     37
mit   uuuuu |      18      17    -200     -63      9 |      22     23
ngs   uuuuu |     -61       1    -170     -29     -1 |       9     12
sio   uuuux |      16      37    -159    -137     24 |      50     51

Table 7.1836.1   GPS week: 1836   Day: 1   MJD: 57097.500

                                                         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 |      44      38    -151      59      1 |      21     24
emr   uuuuu |     -14     -54     338      99    -12 |      15     18
esa   uuuuu |      28      14       8     116     -3 |      35     36
gfz   uuuuu |       4     -39      58     -69      3 |      20     21
grg   uuuux |      13      22    -302     176     20 |      33     37
igr   xxxxx |      26      49      18      53     -2 |       3      8
irf   xxxxx |       6     -11     -53     -75     -1 |       2      7
jpl   uuuuu |       4     -35     181     -34      2 |      37     38
mit   uuuuu |     -27      37    -137    -224     -3 |      22     23
ngs   uuuuu |     -14       5    -147      77      4 |       7     11
sio   uuuux |      -9      51     -51    -143      8 |      52     54

Table 7.1836.2   GPS week: 1836   Day: 2   MJD: 57098.500

                                                         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 |     -25      26       3     -63     -4 |      18     22
emr   uuuuu |      16     -27     108      64     -9 |      10     17
esa   uuuuu |       2     -15      35     -25     -4 |      33     34
gfz   uuuuu |     -34     -34     139    -191     -1 |      18     20
grg   uuuux |     -12      33    -210     173     20 |      34     38
igr   xxxxx |      11      28      27      18     -3 |       1     10
irf   xxxxx |      29     -19      19      -2      0 |       0     10
jpl   uuuuu |      26     -12       4     121     -4 |      35     37
mit   uuuuu |      29       7     -46     -22     -2 |      19     21
ngs   uuuuu |     -29     -13     -13      19      4 |       4      9
sio   uuuux |      31      66    -113     -42      4 |      52     54

Table 7.1836.3   GPS week: 1836   Day: 3   MJD: 57099.500

                                                         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 |     -33      31     -78     105     -3 |      21     24
emr   uuuuu |      10     -36      -6      17      7 |      11     18
esa   uuuuu |     -19     -26      38     126     -9 |      36     38
gfz   uuuuu |     -35     -62     196    -284     -5 |      21     23
grg   uuuux |     -23      15    -168      44     12 |      41     44
igr   xxxxx |     -37       1      57     -18      1 |       4     11
irf   xxxxx |      -2     -11      54      -9     -5 |       3     11
jpl   uuuuu |      26      -1      72     -66     -3 |      38     40
mit   uuuuu |      28       1      30     -49     -3 |      22     24
ngs   uuuuu |     -13      48    -137     102      1 |       8     13
sio   uuuux |      47      32      -4      49      4 |      57     58

Table 7.1836.4   GPS week: 1836   Day: 4   MJD: 57100.500

                                                         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 |      -8      17     -32     278     -5 |      19     23
emr   uuuuu |      25      -9      47      17     14 |      11     17
esa   uuuuu |     -21      30     109     -44    -17 |      35     36
gfz   uuuuu |     -50     -72     340    -240    -11 |      21     22
grg   uuuux |     -12      13    -290     -10      0 |      44     47
igr   xxxxx |      -4      22      60     148     -6 |       4     11
irf   xxxxx |      12     -17      53     -38     -7 |       3     11
jpl   uuuuu |      10       9     158     -76    -10 |      38     40
mit   uuuuu |      20      28      -9     -76     -5 |      22     24
ngs   uuuuu |     -33     -42    -290     236      2 |       8     13
sio   uuuux |      62      28     -54     -47     -6 |      59     60

Table 7.1836.5   GPS week: 1836   Day: 5   MJD: 57101.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -6      26     108     157    -20 |      18     23
emr   uuuuu |      18      11      66     -39      9 |      10     16
esa   uuuuu |     -22      30      69      67    -14 |      32     34
gfz   uuuuu |     -20     -43     262     -82     -4 |      19     22
grg   uuuux |     -46      22    -191     -26     93 |      41     44
igr   xxxxx |      10      25       3     104     -3 |       2     11
irf   xxxxx |       8      -1      -6     -39      3 |       1     12
jpl   uuuuu |      54      -6      94    -107    -11 |      36     39
mit   uuuuu |       6      19    -131     -99      4 |      20     23
ngs   uuuuu |      -3     -40    -222     106      3 |       6     12
sio   uuuux |       0      15      -6      31      8 |      58     59

Table 7.1836.6   GPS week: 1836   Day: 6   MJD: 57102.500

                                                         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       0     -19     106     -5 |      17     22
emr   uuuuu |      11     -37     118      96      6 |      12     18
esa   uuuuu |      -3      25      57     124    -20 |      31     34
gfz   uuuuu |     -11     -38     132    -187     -2 |      19     22
grg   uuuux |     -25      53    -307    -185     18 |      52     61
igr   xxxxx |      18      32     -36      99      2 |       2     11
irf   xxxxx |       8     -16      -3      -2     -3 |       2     12
jpl   uuuuu |      21     -12     122      64      5 |      37     39
mit   uuuuu |     -12      18     -64     -59      0 |      21     24
ngs   uuuuu |      22       8    -110      56      2 |       8     13
sio   uuuux |     -12      -1       0    -100     -3 |      60     61



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