[IGSREPORT-23379] Wk 1830 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Thu Feb 19 20:36:54 PST 2015


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1830   (Feb 01, 2015 - Feb 07, 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:

igs1830[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1830[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1830[0-6].cls  IGS GPS clock combination summary report.
igs18307.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18307.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   | 4 BOR1
                0  |  EMR   | 8
                0  |  ESA   | 4 CHPI
                0  |  GFZ   | 1 2 3 6 30 1 3 4 6 30 BOR1
                0  |  GRG   | 8 BRST KELY SOFI BRST KELY SOFI WES2
                0  |  JPL   | 8
                0  |  MIT   | 8 11 14 18 4 8 11 14 18 21 25 28 30
                1  |  COD   | 4 BRST GRAZ MATE USNO
                1  |  EMR   | 8
                1  |  ESA   | 4 CHUR
                1  |  GFZ   | 1 2 3 6 9 30 1 3 4 6 30 GRAZ HYDE TLSE
                1  |  GRG   | ALRT FAIR FLIN SANT WES2 ALRT FLIN SANT WES2
                1  |  JPL   | 8 KOKB
                1  |  MIT   | 8 8 MAW1
                2  |  COD   | 4 SANT SANT
                2  |  EMR   | 8
                2  |  ESA   | 4 NKLG
                2  |  GFZ   | 1 2 3 4 6 8 30 1 3 4 6 8 30 DRAG GRAZ HYDE SANT HYDE
                2  |  GFZ   | SANT
                2  |  GRG   | LAMA BRFT HYDE LAMA USNO
                2  |  JPL   | 8
                2  |  MIT   | 8 12 19 DARW
                3  |  COD   | 4 GRAZ
                3  |  EMR   | 8
                3  |  ESA   | 4 TLSE
                3  |  GFZ   | 1 2 3 4 6 9 30 1 3 4 6 30 BOGT
                3  |  GRG   | BOGT TLSE BOGT
                3  |  JPL   | 8 CAS1
                3  |  MIT   | 8 8 16 20 WSRT WSRT
                4  |  COD   | 4 PIMO SUWN
                4  |  EMR   | 8
                4  |  ESA   | 4 REUN TIXI
                4  |  GFZ   | 1 2 3 4 6 30 1 3 4 6 30 HYDE HYDE
                4  |  GRG   | CRO1 REUN TLSE REUN
                4  |  JPL   | 4 8
                4  |  MIT   | 8 22 32 8 11 22
                5  |  COD   | CHUR CHUR NKLG TLSE
                5  |  EMR   | 4 8
                5  |  ESA   | GRAZ TLSE
                5  |  GFZ   | 1 3 4 6 1 3 4 6 GRAZ
                5  |  GRG   | 4 4 HYDE HYDE
                5  |  JPL   | 4 8
                5  |  MIT   | 1 4 7 11 26 1 4 7 8 11 16 17 24 26 KOUR BAKO KOUR
                5  |  MIT   | MDVJ TLSE
                6  |  COD   | GRAZ HYDE WHIT
                6  |  EMR   | 4 4 8
                6  |  ESA   | TIXI
                6  |  GFZ   | 1 3 4 6 30 1 3 4 6 30
                6  |  GRG   | 4 4 13 GRAZ MAC1 SANT DAV1 MAC1
                6  |  JPL   | 4 8 WHIT YELL
                6  |  MIT   | 4 11 22 26 4 8 10 11 17 19 20 21 22 26 27 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
               ----+------------+----------
               G30 | 2015_02_06 | 2015009 

 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
               ----+--------+---------------
                5  |  COD   |   4

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

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .0     .6    -.9      -8    -22      0     .55
       EMR  |   0 |    3.1    1.7    7.9      60     31     -4     .44
       ESA  |   0 |    -.4    -.1    -.6     -28      0     34     .19
       GFZ  |   0 |    -.1     .5   -2.1       3    -73     20     .38
       GRG  |   0 |   -4.3   -2.6  -14.7       6    -35     59    1.05
       JPL  |   0 |   -1.2     .7    4.5     -41     37    -31     .65
       MIT  |   0 |    4.2   -1.0    -.7      11     16    -38     .76
       NGS  |   0 |    1.9    1.6    -.3      23      0     12     .62
       SIO  |   0 |    -.2   -2.1   -4.5       2      3     22     .70

       COD  |   1 |    -.9    1.0    -.6      -2     -7    -17     .41
       EMR  |   1 |     .4    8.5    6.9      35     22     -6     .43
       ESA  |   1 |    -.5    -.3    -.6     -26    -18     33     .24
       GFZ  |   1 |    -.3     .9   -1.5      -4    -62     18     .60
       GRG  |   1 |     .5    -.9  -14.8      29    -20     23    1.07
       JPL  |   1 |   -4.3   -3.8    3.9     -37     12    -22     .83
       MIT  |   1 |    5.9     .0   -1.6      19     10    -33     .54
       NGS  |   1 |    2.0    2.6   -3.3      35      6     13     .45
       SIO  |   1 |   -1.2    -.5    7.0       4    -10     -5     .68

       COD  |   2 |   -1.4    -.4    -.5      -1      1    -22     .20
       EMR  |   2 |   -1.5   10.0   10.7      48     11      1     .03
       ESA  |   2 |    -.1    -.4    -.8     -12    -30     45     .05
       GFZ  |   2 |     .3     .1   -1.2     -27    -64     25     .37
       GRG  |   2 |    -.9     .1   -8.9       5     -1     17     .72
       JPL  |   2 |    1.9    1.5   10.3     -55     19     -2     .17
       MIT  |   2 |     .1    1.3   -2.0      14     15    -35     .37
       NGS  |   2 |    4.9    4.2     .8      26     -9     17     .19
       SIO  |   2 |    -.8    -.3    -.6      14      5    -13     .32

       COD  |   3 |   -1.4    -.2   -1.8     -28     13    -29     .61
       EMR  |   3 |    3.2    9.3    5.4      50     36      3     .30
       ESA  |   3 |    -.5     .0    -.7     -18    -24     55     .29
       GFZ  |   3 |    -.1     .5   -1.4     -36    -61     19     .60
       GRG  |   3 |    4.7    -.9  -19.9     -19     -4     -1    1.11
       JPL  |   3 |     .0    1.3    6.1     -78     47    -38     .32
       MIT  |   3 |    1.3    4.9   -3.6      13      7    -28     .81
       NGS  |   3 |    -.9    7.4   -9.0      66     22     13     .51
       SIO  |   3 |     .3    5.4    6.9      -5      7     -6     .52

       COD  |   4 |   -3.0   -1.4   -3.2     -57     15    -12     .53
       EMR  |   4 |    8.5    4.8    7.7      42     38      3     .39
       ESA  |   4 |    -.6    -.5    -.4     -26    -33     53     .29
       GFZ  |   4 |    -.2     .2   -1.9     -35    -68     10     .65
       GRG  |   4 |    1.6    -.4  -23.3      19    -23     17    1.06
       JPL  |   4 |   -2.8   -3.1    6.2      -2     21    -25     .39
       MIT  |   4 |   -1.3    3.4   -3.1       4      5    -25     .63
       NGS  |   4 |     .6    3.7   -3.7      38     10      7     .56
       SIO  |   4 |    1.8    2.8    9.9       7     -5    -10     .36

       COD  |   5 |   -1.5    -.4   -2.8     -17    -18    -11     .84
       EMR  |   5 |    2.2    8.4   14.5      39     32     14     .28
       ESA  |   5 |    -.1    -.6    -.4     -23    -12     52     .42
       GFZ  |   5 |     .3     .2   -1.5     -30    -69     14     .78
       GRG  |   5 |    3.7    1.1  -15.4     -17    -17    -14     .60
       JPL  |   5 |    3.4   -1.4    2.5     -13     64    -49     .33
       MIT  |   5 |     .9     .1    2.4      17     14    -37     .71
       NGS  |   5 |     .8    -.9   -4.1      31      9      3     .77
       SIO  |   5 |    2.7   -2.5    2.0       1      0    -29     .57

       COD  |   6 |   -1.9    -.4   -3.0     -11     12      5     .61
       EMR  |   6 |    6.1    6.8   10.5      29     41     14     .11
       ESA  |   6 |     .5    -.7    -.3     -23    -19     64     .22
       GFZ  |   6 |    -.1     .5   -1.7     -23    -64     12     .50
       GRG  |   6 |    4.6   -2.7  -13.8      -2     24    -18     .80
       JPL  |   6 |    7.3    -.1   -1.6     -32     48    -22     .40
       MIT  |   6 |    1.6   -1.9    4.9      12      7    -26     .51
       NGS  |   6 |    5.1   -3.2    1.1       9    -10     14     .57
       SIO  |   6 |    -.6   -2.4   12.9      -7      6    -28     .33


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

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


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.1830.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1830.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 2.1830.[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 3.1830.[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 5.1830.0-6). 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 1830 summary.                       (Feb 01, 2015 - Feb 07, 2015)

Table 1.1830.a   GPS week: 1830   MJD: 57054.000-57060.000

         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  250|    0     2     7    13    20    15  -.04   17   14 |    -266   -1074     18    121
        |    0     1     2    20    20    28   .02           |     647    1019
emr   79|    0     0     1    -7   -10     4   .17   13   13 |    3623     -66     13    158
        |    1     1     0    18    29    15   .02           |    1143     828
esa  149|    0     0     1    -3     0    10  -.35   13   13 |     160    -521     11    160
        |    0     0     0    13    22    18   .02           |    1167    1270
gfz  199|    1    -1    -7    41     0    14   .05   13   12 |     127     -32     14    177
        |    0     0     1    14    23    13   .04           |     325     681
grg  177|    2     0    -4   -22   -16   -28   .16   16   15 |     141    -180     17    156
        |    1     0     0    16    20    14   .05           |     177     298
igr  n/a|    0     0     0    -7     4    -5  -.17    5    4 |     802    -421     16     94
        |    0     0     0    17    13    16   .01           |    1957     940
jpl   80|    0     0     3   -39    15   -28   .18   12   12 |    3681     -85     17    111
        |    1     1     0    20    33    17   .02           |    1143     825
mit  348|    0    -1    -1    20    -8    15  -.08   13   12 |     -41    -381     26    202
        |    0     0     2    17    32    16   .01           |     724    1067
ngs  229|   -1     0    -3    -5    -1    -3   .01   10    8 |    -492    -668   1183   2740
        |    0     0     2    20    11    19   .02           |     603    1206
sio  326|    0    -2     2    11   -22    21  -.15   16   15 |     ---     ---    ---    ---
        |    0     0     2    36    62    43   .03           |     ---     ---


Table 1.1830.b   GPS week : 1830   MJD: 57054.000-57060.000   

         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    4    4    4    4    4 |
   2  |    5    5    5    5    5    5    5 |
   3  |    5    4    5    5    5    5    6 |
   4  |    6    6    6    8    9    7    8 |
   5  |    5    5    6    5    5    5    5 |
   6  |    4    5    5    4    4    5    5 |
   7  |    5    5    5    5    5    4    4 |
   8  |    8   10    8    8    8    7    8 |
   9  |    4    4    4    4    4    4    4 |
  10  |    4    4    4    4    4    4    5 |
  11  |    4    4    4    4    4    3    3 |
  12  |    5    5    6    5    5    5    5 |
  13  |    5    5    5    6    6    5    5 |
  14  |    5    4    4    4    5    4    5 |
  15  |    6    5    5    5    5    5    5 |
  16  |    5    4    5    5    5    5    5 |
  17  |    4    5    5    4    5    5    6 |
  18  |    6    6    6    6    6    6    6 |
  19  |    4    5    4    4    4    5    5 |
  20  |    5    5    5    5    5    5    5 |
  21  |    4    5    5    4    5    4    5 |
  22  |    5    5    5    6    6    5    6 |
  23  |    5    5    4    4    5    4    5 |
  24  |    5    5    5    4    4    5    4 |
  25  |    4    5    4    4    4    4    4 |
  26  |  ---  ---  ---  ---  ---   11   11 |
  27  |    4    4    4    4    4    4    4 |
  28  |    5    4    4    4    4    4    4 |
  29  |    5    5    6    5    6    5    5 |
  30  |    4    4    4    4    5    0    4 |
  31  |    4    4    4    4    4    5    4 |
  32  |    3    4    4    4    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 2.1830.0   GPS week: 1830   Day: 0   MJD: 57054.000                            

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|   -2     1     3     9    31   -17  -.07   14   13 |    -742    -380     15    108
emr   78|   -1     0     2    -4    40    12   .19   13   13 |    4269     668     12    140
esa  150|   -1     0     2   -17    39   -14  -.38   13   13 |     158    -482     12    178
gfz  201|    2     0    -9    33    41    13   .02   12   11 |     138    -442     12    178
grg  179|    1     0    -5     2   -41   -33   .21   14   14 |     206    -325     17    159
igr  n/a|    0     0     0   -17    23   -35  -.18    4    4 |    3498    -516     14     86
jpl   80|    0     1     4   -12     2   -11   .20   11   11 |    4311     672     17     92
mit  349|    1    -2    -2    37   -49    19  -.08   15   15 |    -644     158     29    208
ngs  230|    0     0     0   -14     8   -19  -.03    9    9 |    -696    -514   1171   2855
sio  324|    0    -2     3   -31  -131    91  -.15   15   15 |     ---     ---    ---    ---

Table 2.1830.1   GPS week: 1830   Day: 1   MJD: 57055.000                            

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     2     7    18    11    -4  -.02   13   12 |    -609    -752     16    115
emr   80|    0     0     2    -9   -17     3   .13   11   11 |    5387    -820     13    134
esa  150|    0     0     1   -22    -2   -13  -.37   13   13 |    -342     496     12    153
gfz  202|    1    -2    -5    39    -7    31   .04   12   12 |     191     436     15    185
grg  182|    0     0    -2   -45   -13   -21   .17   16   15 |      10      53     17    163
igr  n/a|    0     0    -1     0    -6     7  -.14    4    4 |    3268   -1531     17    104
jpl   80|    1    -1     3   -34   -33   -34   .21   12   12 |    5445    -829     17    123
mit  349|    1    -1    -3    16    31    28  -.08   14   12 |     118   -1116     20    175
ngs  231|   -1     1    -4     3     4    -5  -.00   10    8 |    -580     -84   1242   2407
sio  325|    1    -3     2    58    13    50  -.12   18   17 |     ---     ---    ---    ---

Table 2.1830.2   GPS week: 1830   Day: 2   MJD: 57056.000                            

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  254|    0     2    10    19    40    -7  -.03   16   14 |    -973     102     17    125
emr   80|    0     0     0    -6   -18    14   .15   13   13 |    4170    -536     16    169
esa  148|    0     1     2     1    14     6  -.32   12   12 |    1144   -1590     10    177
gfz  199|    0    -2    -8    17     0    15   .03   13   13 |    -273     440     15    170
grg  180|    1     0    -4   -34   -29   -18   .21   15   15 |     -33      68     17    159
igr  n/a|   -1     0     0   -36    15    -3  -.17    5    5 |    1363    -822     18     92
jpl   80|    2    -1     3   -53    47    -4   .18   13   13 |    4298    -539     18    116
mit  349|    0    -1    -3    30   -17    38  -.10   14   11 |    -952    1238     25    172
ngs  228|   -2     1    -1   -12   -20   -35   .01   10    9 |    -408    -654   1211   2117
sio  331|    0    -2     2    48   -34    29  -.18   15   15 |     ---     ---    ---    ---

Table 2.1830.3   GPS week: 1830   Day: 3   MJD: 57057.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  249|    0     0     6    40    -5     7  -.06   15   12 |      41   -1759     16    108
emr   80|    1     3     1    32     8     3   .17   13   13 |    3844    -514     12    154
esa  150|    0     0     2    14    -2    23  -.32   13   13 |     -42    -869     12    170
gfz  200|    0    -2    -8    65    -5    33   .01   13   12 |      21    -325     16    189
grg  171|    3     0    -4   -33   -30   -40   .13   15   15 |      25    -154     18    152
igr  n/a|    0     0     0    17    13    -1  -.17    5    4 |     203   -1037     15     86
jpl   80|    0     0     3   -74    37   -21   .16   11   11 |    3833    -546     16    104
mit  349|    0    -2     0     7   -17    -7  -.08   13   11 |      95    -394     26    161
ngs  230|   -2     1    -4   -24     3    12   .01    9    7 |     -45   -1616   1096   2837
sio  332|    0    -4     5     2   -35    -9  -.12   16   16 |     ---     ---    ---    ---

Table 2.1830.4   GPS week: 1830   Day: 4   MJD: 57058.000                            

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     3     5   -25    41    61  -.03   19   15 |     367   -2524     20    120
emr   80|    0     0     2   -19   -11     8   .18   12   12 |    3141    -989     14    179
esa  150|    0     0     0     7   -31    13  -.35   12   12 |    1499   -2252     12    166
gfz  202|    0    -1    -9    45   -36     0   .07   13   11 |     611   -1236     15    181
grg  178|    3     1    -4   -15   -18   -41   .08   16   15 |     475    -782     17    155
igr  n/a|    0     0    -1   -12   -11    -8  -.17    4    4 |    -609    -803     17     97
jpl   80|    0    -2     4   -28     2   -46   .17   12   12 |    3201   -1015     19    140
mit  349|    0    -1     0    32    30    16  -.10   12   12 |      10    -307     27    230
ngs  233|   -2     0    -5     1     1     7   .04   10    9 |     462   -2772   1252   3260
sio  331|    0    -2     6    10    14    10  -.13   15   15 |     ---     ---    ---    ---

Table 2.1830.5   GPS week: 1830   Day: 5   MJD: 57059.000                            

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     1     7    18    26    34  -.04   22   13 |     735   -2025     18    138
emr   80|    0     1     2   -24   -14   -28   .17   13   13 |    2042     934     14    170
esa  150|    0     1     3    -5    -3    32  -.35   12   12 |   -2029    1573     11    142
gfz  197|    1     0    -4    50     4    -1   .14   12   11 |    -231     744     13    177
grg  175|    4     0    -3   -21    16   -38   .13   18   17 |     231    -115     16    166
igr  n/a|    0     0    -1     6    -1   -13  -.17    5    4 |   -1267     883     16     98
jpl   80|    1     0     5   -28    60   -31   .15   11   11 |    2104     902     14     99
mit  349|    0    -1     0   -10   -42    18  -.07   14   13 |    1327   -2191     28    266
ngs  230|   -2     0    -7    34   -16    -4   .02   10    9 |   -1478     932   1001   3095
sio  322|    0    -2     0   -35   -49    22  -.19   17   16 |     ---     ---    ---    ---

Table 2.1830.6   GPS week: 1830   Day: 6   MJD: 57060.000                            

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  247|    0     3     8    13    -5    35  -.00   19   14 |    -687    -185     24    134
emr   80|    1     0     2   -16   -57    16   .20   14   14 |    2509     795     16    164
esa  150|    0     0     1    -1   -15    22  -.35   13   13 |     734    -527     13    136
gfz  195|    1     0    -6    35     5    11   .06   13   12 |     437     159     13    164
grg  175|    2     0    -4    -8     4    -2   .20   15   16 |      78      -6     17    144
igr  n/a|    0     0    -1   -10    -3    13  -.17    5    5 |    -838     873     18     95
jpl   80|    0    -1     3   -48    -6   -50   .15   14   14 |    2579     756     19    108
mit  344|    0     0     1    29     5    -4  -.06   12   12 |    -246     -59     28    203
ngs  227|   -1     0    -3   -23     5    18   .01   10    8 |    -703      26   1311   2611
sio  319|    0    -1     0    26    64   -46  -.18   13   13 |     ---     ---    ---    ---

       
       
Table 3: Daily fit for each satellite and each centre resulting from weighted
         average combination and from long arc orbit dynamics (7-day). The
         first IGS column gives resulting satellite accuracy measures found in
         SP3 header. The last IGS column gives the RMS fit of the IGS orbit
         when processed through the 7-day arc evaluation.

         "E"    stands for eclipsing satellites (earth).
         "M"    stands for eclipsing satellites (moon).
         "X"    stands for excluded from the statistics but included in IGS orbit.
         "T"    stands for Total long arc orbit RMS for all satellites.
         "NE"   stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI" stands for median of the centre's satellite RMS.
         "MD"
         Units: mm.

Table 3.1830.0   GPS week: 1830   Day: 0   MJD: 57054.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   18   16   14    8   16    5    9    8    7   13    4 |    22   28   25   17   24   18   21   18   19   20    19
   2E |   14   16    9   11   14    3   11   17   10   14    4 |    47   46   46   46   46   45   46   43   44   45    44
  X3  |   10    9   12   12  ---    5   13   20   10   17    5 |    80   77   81   71  ---   75   79   73   77   82    76
   4E |   26   12   12   12   18    6   12   23   11   20    5 |    88   99  101  101  104  101   98   92  101   97    97
   5  |   13   14   16   14   14    5   12   19   10   19    5 |    62   65   60   60   59   58   67   55   61   60    60
   6E |   16    8   15    8   15    5   12   12    9   13    4 |    38   34   39   35   33   34   34   31   36   37    34
   7E |    9   15    8   11   15    4   15   14   11   14    4 |    66   63   62   67   64   61   65   63   62   60    63
  X8E |   34   13   14   14   20   14   12   18  ---  ---    7 |    65   53   44   42   14   42   51   37  ---  ---    46
   9  |   11    9   16   10   12    3    8    9    8   11    3 |    44   47   38   48   51   41   46   46   43   37    43
  10  |    8   11   13   10   13    4    9   14    7   11    3 |    23   22   20   34   31   23   22   30   24   21    23
  11E |   15   10   10    8   11    5    7   12    9   19    4 |    27   23   17   20   24   18   23   21   20   25    19
  12  |   17   15   12   15   16    4   10   14    8   13    4 |    29   31   23   33   33   24   30   29   30   29    27
  13  |    9   15   15   12   17    4   11   13   10   14    4 |    33   42   35   45   52   37   44   41   42   38    39
  14  |   13   14   15   15   14    4   12   12   10   12    4 |    37   38   34   50   45   38   35   42   44   38    38
  15  |   17   16   16   14   13    4   15   17   13   21    5 |    34   41   34   42   41   33   41   37   38   39    36
  16  |   13   12    9   14   16    5   12   12   10   21    4 |    28   26   20   25   26   20   26   18   20   14    19
  17  |   11   13   12   14   14    3   11   13    9   13    4 |    33   33   26   36   34   26   31   31   28   30    29
  18  |   20   13   14   14   15    6   14   25   14   17    5 |    28   24   22   34   29   20   23   27   23   24    22
  19  |    9   12   11   10   15    5   13   14    8   16    4 |    26   28   19   27   28   20   26   25   20   22    22
  20  |   11   12   13   12   12    4   10   17    7   16    4 |    29   29   25   37   33   27   28   33   27   23    27
  21E |   15   12   10   11   17    6   12   12    8   12    4 |    27   23   19   27   25   22   26   21   26   25    22
  22  |   15   11   13   12   12    5   11   22   10   17    5 |    31   32   32   41   39   30   32   41   30   32    32
  23  |   10   13   13   15   14    4   10   14   10   20    4 |    30   34   30   42   36   31   35   30   29   22    30
  24E |   15   11   15   11   15    5   11   15   10   11    4 |    28   28   28   23   28   22   29   27   24   26    24
  25  |    8   13   14    9    9    2   11   11    8   11    3 |    19   27   24   22   22   18   26   18   21   22    20
  27  |   20   11   12    8   10    4   10   10    8   13    4 |    26   25   24   21   21   17   23   20   21   22    20
  28  |    9   13   12   12   14    3   12   18    9   12    4 |    26   28   23   29   31   22   30   28   24   27    25
  29  |   19   17   10   15   16    5   12   12   12   19    5 |    29   25   17   28   24   18   25   22   20   26    20
  30E |   10    9   15    8   15    5    9   13    8   13    4 |    31   26   31   29   27   24   24   24   27   18    26
  31E |   15    9    9   10   19    4   10   11    7   12    4 |    29   31   26   32   31   27   31   29   30   30    28
  32  |   10   10    8   11   13    4    7   10    7   10    3 |    27   35   29   36   34   29   34   30   30   20    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   14   13   13   12   14    4   11   15    9   15      |T   36   37   34   38   36   32   37   34   34   33    34
 WRMS |   13   13   13   11   14    4   11   15    8   15      |NE  33   35   30   38   35   30   35   33   32   31    31
 MEDI |   13   12   13   12   14    4   11   14    9   13      |MD  29   31   28   35   31   27   31   30   28   26    28

Table 3.1830.1   GPS week: 1830   Day: 1   MJD: 57055.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   18    9   15   11   15    4    9    9    6   16    4 |    25   24   25   18   22   21   26   22   19   23    20
   2E |   15   11   10   13   22    5   13   20   10   20    5 |    85   85   88   80   84   84   85   82   84   79    83
  X3  |   11    9   11   11  ---    5    9   12    8   16    4 |    54   53   53   46  ---   48   53   49   51   55    51
   4E |   17   14   11   14   16    6   15   24   13   18    5 |    96  100  102  106  105  104   99   97  105  100   101
   5  |   11   12   16   15   13    5   12   16   14   28    5 |    47   46   46   43   45   43   46   44   51   48    44
   6E |   20   11   13    8   13    4   10   11    7   22    4 |    44   47   45   39   41   42   43   40   41   40    41
   7E |   11   12    7   14   18    5   16   12   12   18    4 |    65   66   64   66   71   64   65   66   66   61    65
  X8E |   43   14   17   20  ---    9   18   19   23  ---    9 |    65   43   33   37  ---   38   41   31   46  ---    38
   9  |    8    7   16   10   10    3    9    9    6   16    3 |    30   34   27   32   34   31   36   31   32   31    31
  10  |   10    8   11   11   13    3    9   10    7   21    4 |    26   26   22   27   25   24   23   27   23   25    23
  11E |    9   10    8   11   13    4    9   12   10   17    4 |    21   23   17   19   25   20   29   23   19   27    20
  12  |   14   15   13   14   21    4   14   15   12   17    5 |    29   30   20   28   30   23   29   23   26   24    23
  13  |   10   15   16   12   19    4   13   13   10   16    5 |    27   36   27   28   40   28   37   29   29   29    29
  14  |   10   12   14   13   13    3   12   10    9   14    4 |    29   32   27   30   34   28   31   30   32   31    29
  15  |   10   14   15   14   13    4   14   16   10   19    5 |    28   33   26   29   29   26   34   26   26   26    26
  16  |   13   11    9   13   16    4   12   10    8   18    4 |    24   24   17   21   25   17   24   17   20   17    18
  17  |    8   10   11   16   15    3   14   13   10   20    4 |    26   28   19   30   31   22   30   23   23   25    23
  18  |   16   13   14   14   18    7   13   24   11   19    5 |    27   28   26   27   25   22   25   24   26   26    23
  19  |   11   11   11   13   16    4   12   11   10   18    4 |    24   24   16   24   26   18   26   17   19   18    19
  20  |   12   12   12   15   14    3   10   16    9   23    4 |    21   27   22   25   25   21   26   27   20   23    21
  21E |   18   12    7   10   21    4   13   11   11   15    4 |    26   24   18   24   23   19   25   21   22   26    21
  22  |   13   11   14   12   14    7   13   21    9   20    5 |    27   29   28   29   28   24   28   29   29   25    26
  23  |   10   10   13   14   11    4   12   11   10   22    4 |    26   30   26   30   25   25   31   23   26   23    25
  24E |   15   12   15    9   17    5   10   18    8   12    4 |    28   29   31   25   32   25   29   29   25   30    26
  25  |   11   13   14    8   14    3   12    9   13   14    4 |    18   25   23   21   23   18   25   17   24   20    20
  27  |   18    9   14    9   11    4   10    9    8   16    4 |    24   25   22   18   23   17   25   17   20   23    19
  28  |   10   12   12   12   17    4   12   14    6   13    4 |    22   29   21   23   32   22   28   24   22   24    23
  29  |   16   15   13   16   14    4   14   13   10   22    5 |    24   23   14   23   24   16   25   18   20   18    17
  30E |   12    9   15   11   15    5    9   10    8   17    4 |    29   25   32   22   23   26   25   24   28   23    25
  31E |   18    9    7   11   17    7   10   12    8   16    4 |    33   32   26   30   35   26   31   30   32   34    30
  32  |   12    9    8    9   12    5    7   13   10   12    3 |    19   21   18   18   17   18   22   18   19   16    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   11   13   12   16    4   12   14   10   18      |T   34   35   31   32   34   30   35   31   33   32    31
 WRMS |   12   11   13   12   15    4   12   12    8   17      |NE  27   30   25   27   28   24   30   25   26   26    25
 MEDI |   12   11   13   12   15    4   12   12   10   17      |MD  27   29   26   28   28   24   29   26   26   25    25

Table 3.1830.2   GPS week: 1830   Day: 2   MJD: 57056.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   16   10   14   10   18    6   11    8    5   11    4 |    22   19   23   15   19   18   24   17   18   19    17
   2E |   14   14    6   11   20    7   16   16   10   16    4 |    45   41   41   46   47   44   44   44   42   50    43
  X3  |   17    7   11   12  ---    4   14   11   10   18    4 |    63   58   60   53  ---   55   60   54   55   61    56
   4E |   28   14   11   15   18    9   13   21   13   20    6 |    69   80   80   81   82   81   79   76   80   79    78
   5  |   10   15   16   17   17    5   19   16   12   18    5 |    58   62   63   50   54   57   61   57   60   56    57
   6E |   24    9   15   10   14    4   11   10    9   18    4 |    40   38   41   38   37   35   40   35   37   39    36
   7E |   24   13    6   13   14    3   16   15   10   16    5 |    74   79   71   77   80   73   79   79   75   75    75
  X8E |   31   13   14   17  ---   10   17   17   17  ---    7 |    53   44   37   36  ---   35   43   32   32  ---    37
   9  |    7    7   15   10    9    4   10    9    6   12    3 |    32   39   31   36   40   33   39   38   34   33    34
  10  |    6   10   10   10   17    3   13   11    7   10    3 |    20   20   20   28   27   20   19   27   17   24    20
  11E |   14   10    9    9   13    5    9   13    9   17    4 |    25   21   13   17   21   14   22   19   17   22    17
  12  |   16   17   12   19   21    4   15   16   10   14    5 |    32   33   23   37   32   26   29   27   28   29    27
  13  |    9   15   15   13   17    5   16   13   10   15    5 |    26   36   27   37   44   29   39   30   32   30    31
  14  |    9   11   14   13   15    4   12   10   11   14    4 |    27   32   30   41   36   32   30   32   36   29    31
  15  |   13   12   13   15   14    5   17   14   11   18    5 |    35   36   31   39   35   31   38   29   32   34    32
  16  |   18   11   11   16   14    6   10   10   10   21    4 |    28   24   18   25   23   19   22   18   18   18    17
  17  |   10   19   12   17   16    5   17   11    8   14    5 |    30   32   24   33   32   23   32   25   25   24    26
  18  |   19   12   14   15   16    8   16   24   12   18    5 |    22   24   23   28   25   20   25   24   21   25    20
  19  |   14   11   13    9   14    7   10   13    7   15    4 |    23   26   18   20   23   15   23   16   15   16    17
  20  |   13   16   12   17   13    6   14   15   10   17    5 |    23   29   23   28   27   21   26   27   17   22    21
  21E |   16   16    6   12   20    4   14   12    8   13    4 |    30   28   23   29   29   23   27   25   25   29    25
  22  |   18   13   14   12   14    6   12   23   12   13    5 |    24   29   26   32   31   24   26   31   23   26    25
  23  |   14    8   13   13   10    5    9   10    9   18    4 |    31   32   28   33   31   26   32   26   27   23    27
  24E |   15   12   13    7   16    4   11   15   10   13    4 |    31   29   31   27   33   26   28   24   27   27    26
  25  |   12   13   14   12   14    4   11   10    8   13    4 |    16   24   22   20   23   17   22   17   20   23    18
  27  |   12   13   15   10   11    6   11   10    6   15    4 |    16   25   25   20   20   17   22   16   18   16    18
  28  |    8   14   12   11   14    4   15   14    8   12    4 |    24   27   20   24   29   20   28   21   21   20    21
  29  |   18   20   13   23   18    4   16   12   12   19    6 |    27   25   17   33   27   17   24   22   21   23    21
  30E |   11   11   12   12   17    4   10    9    7   14    4 |    28   26   29   25   24   21   23   24   20   19    23
  31E |   24    9    8    7   15    4    8    9   12   11    4 |    32   29   23   28   32   25   29   25   33   26    27
  32  |   15    8   10   10   12    5    7   11   12   10    3 |    14   18   15   18   19   12   18   16   17   10    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   13   12   13   15    5   13   14   10   15      |T   32   34   30   34   33   29   33   30   30   30    30
 WRMS |   14   13   12   13   15    5   13   11    9   15      |NE  28   31   27   31   30   25   30   27   26   27    26
 MEDI |   14   12   13   12   15    5   13   12   10   15      |MD  28   29   25   32   31   24   28   26   25   25    26

Table 3.1830.3   GPS week: 1830   Day: 3   MJD: 57057.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   15   15   14    9   12    4    9    8    6   13    4 |    24   28   26   20   22   21   24   20   23   20    21
   2E |   13   14    8   10   23    3   12   13    8   22    4 |    59   59   60   59   59   57   61   58   58   55    58
  X3  |   12    9   12   13  ---    3   10    7    7   23    4 |    71   70   73   61  ---   68   72   65   71   75    69
   4E |   49   16   13   15   16    5   14   19   15   20    7 |    86   90   89   92   93   91   89   83   94   84    87
   5  |    9   13   15   14   14    5   14   13   10   22    5 |    50   49   49   44   41   45   51   43   44   50    45
   6E |   14   11   15    8   17    4    8    9    6   17    4 |    46   45   49   46   47   43   46   44   43   46    45
   7E |   16   13    9   11   16    3   14   12   10   16    4 |    45   44   41   46   44   40   43   40   43   35    41
  X8E |   35   13   17   13  ---    9   17   19   20  ---    8 |    57   51   41   41  ---   43   51   35   40  ---    43
   9  |    8    8   15   10   10    4    8    7    5   13    3 |    41   45   38   44   49   41   45   44   45   38    42
  10  |    7    9   11   11   14    3    9    8    5   15    3 |    28   26   27   33   32   26   25   29   27   23    26
  11E |   12    9    9   10   14    5    7   10    9   16    3 |    24   27   22   24   32   22   27   25   27   28    24
  12  |   10   13   13   14   20    4   12   12   10   17    4 |    30   27   20   30   31   23   28   24   27   22    24
  13  |   10   15   14   17   15    6   15   25   11   17    5 |    36   41   34   43   46   35   42   45   36   35    37
  14  |   12   11   16   16   15    6   12   11    7   12    4 |    39   36   34   51   41   36   34   36   40   35    37
  15  |   11   14   12   17   11    5   12   10   12   21    4 |    36   39   35   40   34   33   39   32   36   36    34
  16  |   18   13   12   18   20    4   10   12    9   21    5 |    27   23   19   26   24   18   23   18   21   18    18
  17  |    7   13   12   17   15    5   12   10    7   14    4 |    28   32   23   35   32   25   31   30   27   28    27
  18  |   18   14   14   15   17    6   13   23   13   15    5 |    30   29   25   36   29   24   27   28   30   24    26
  19  |   13   12   13   13   14    5   10   12    9   17    4 |    24   26   20   28   27   20   27   22   25   25    22
  20  |    8   16   13   15   13    4   12   13    8   16    4 |    24   30   27   31   31   24   28   29   25   20    25
  21E |   10   15    8   10   15    5   12   11    7   13    4 |    29   31   24   28   32   25   28   25   33   24    27
  22  |   18   14   15   14   16    5   11   22    9   18    5 |    31   30   26   37   33   28   30   33   31   27    28
  23  |   10   11   13   14   15    4   10    8    9   18    4 |    29   32   30   34   32   29   35   28   31   22    29
  24E |    9   13   13    6   18    4    8   14    8   12    4 |    35   36   35   33   35   29   33   32   32   32    31
  25  |   11   17   16    8   15    3   12    9    9   14    4 |    23   28   24   23   26   19   27   17   22   22    21
  27  |   14   13   16    8   11    4    9    9    7   15    4 |    23   28   25   23   23   20   26   19   24   22    21
  28  |    9   12   11   11   15    5   13   10    7   11    4 |    29   30   24   31   34   23   28   28   27   27    26
  29  |   14   15   11   16   18    3   13   13   13   20    5 |    30   27   21   33   26   21   29   23   28   23    24
  30E |   14   12   14    8   13    4    8    7    5   14    3 |    26   24   29   24   22   22   20   21   22   13    22
  31E |   16   12    9    9   13    4    8   12    9   11    4 |    46   46   43   48   48   43   46   44   48   46    45
  32  |   13    9   11   13   12    4    6   10    6    9    3 |    19   22   19   26   20   18   22   21   20   15    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   15   13   13   13   15    5   11   13    9   16      |T   36   37   33   37   36   32   36   33   35   32    33
 WRMS |   12   13   13   12   15    4   11   11    7   16      |NE  32   33   29   35   32   28   33   30   31   29    29
 MEDI |   12   13   13   13   15    4   12   11    9   16      |MD  30   31   27   34   32   26   30   29   31   27    27

Table 3.1830.4   GPS week: 1830   Day: 4   MJD: 57058.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   14    9   14    7   11    5   10    8   11   11    3 |    22   24   28   18   24   21   26   19   23   20    21
   2E |   12   13    6    9   22    5   14   12    9   17    4 |    31   39   34   29   37   34   38   28   40   28    33
  X3  |   14    5   13   11  ---    5   11    7    9   25    4 |    67   66   68   58  ---   63   67   64   63   73    64
   4E |   66   17   12   13   18    6   16   15   18   22    8 |    83   86   84   86   87   83   82   77   91   76    81
   5  |   12   15   16   13   16    5   17   12   11   19    5 |    34   43   43   31   33   34   43   33   37   38    36
   6E |   17    7   15    9   14    4    7    8   11   16    4 |    35   40   40   34   37   37   38   36   41   34    36
   7E |   14   14    8   10   18    4   17   11   12   12    4 |    43   41   39   45   48   39   44   40   45   40    41
  X8E |   36   12   15   16  ---   15   15   19   17  ---    7 |    59   47   36   36  ---   38   45   31   43  ---    38
   9  |   12    9   14    9   10    4   10    5    8   13    3 |    38   42   33   39   43   36   40   38   39   29    37
  10  |    9   11   11   11   14    3    9   11    7   15    4 |    23   24   20   27   26   22   23   25   24   21    22
  11E |   11    9   11   11   16    5    9   11    8   15    4 |    20   28   24   26   34   24   30   20   26   21    23
  12  |   16   10   13   12   21    4   11   12    7   14    4 |    28   32   23   26   34   23   30   24   25   25    25
  13  |   11   16   15   23   15    5   15   14   11   14    5 |    31   38   32   42   42   33   38   33   35   31    33
  14  |   13   12   15   12   15    3   10   10   12   13    4 |    37   35   32   44   40   35   34   35   40   36    35
  15  |   14   16   11   15   13    4   16   14   13   19    5 |    36   40   31   40   36   33   37   32   36   36    33
  16  |   17   11   12   15   21    4   10   10   12   16    4 |    27   28   19   24   28   20   26   19   23   16    20
  17  |    9   15   12   18   17    3   11    8    9   14    4 |    29   36   23   34   35   24   31   25   26   24    27
  18  |   24   15   13   18   16    5   15   22   14   16    6 |    29   27   22   34   29   23   25   24   26   22    22
  19  |   12   12   12   12   20    5    8   11    7   14    4 |    22   29   20   25   29   20   28   19   21   22    21
  20  |   11   14   13   14   14    4   15   11    8   18    4 |    26   31   23   32   31   24   30   27   25   20    24
  21E |   19   14    6   14   16    4   16   11   11   11    4 |    38   34   33   42   35   36   39   36   38   38    35
  22  |   21   15   14   17   13    5   12   20   12   16    5 |    28   30   26   39   34   28   28   28   31   26    27
  23  |   12   11   13   13   12    6   11   10   10   18    4 |    27   31   26   32   30   28   33   24   30   17    26
  24E |   10   11   13    9   17    4   10   12    8   10    4 |    31   31   34   28   36   26   33   28   26   28    29
  25  |   15    9   14    9   17    4    9   10    7   15    4 |    22   30   25   23   28   21   30   20   23   23    23
  27  |   16   10   16    9   12    5   10    9    8   12    4 |    22   27   19   18   23   17   24   15   22   17    19
  28  |   12   13   11   12   16    5   13   11    8   12    4 |    27   31   23   26   35   21   29   23   23   27    24
  29  |   22   17   11   12   21    5   14   15   11   21    5 |    31   31   19   24   29   21   28   24   25   25    22
 X30E |   17   15   14    8  ---    5  ---    8    9  ---    5 |    30   27   32   23  ---   21  ---   21   26  ---    24
  31E |   19   10    9   10   13    4    8   11   11   12    4 |    26   27   25   29   27   25   27   27   32   27    26
  32  |   17    7    9    8   14    5    8   10    8   10    3 |    16   21   15   19   22   18   21   19   21   14    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   19   12   12   13   16    4   12   12   10   15      |T   32   35   30   33   34   29   34   29   33   29    30
 WRMS |   15   12   12   11   15    4   12   12    9   15      |NE  30   33   27   31   31   27   32   27   29   27    27
 MEDI |   14   12   13   12   16    5   11   11   10   15      |MD  29   31   26   31   34   25   30   27   26   26    26

Table 3.1830.5   GPS week: 1830   Day: 5   MJD: 57059.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   18   10   14    7   16    5    9    8    8   13    4 |    18   19   21   15   17   13   17   17   16   15    15
   2E |   12   12    9   10   22    3   11   16    9   14    4 |    35   37   34   35   37   35   36   37   38   34    35
  X3  |   12   12   11   13  ---    4   11   11    9   29    5 |    53   56   55   47  ---   49   53   52   50   57    51
   4E |   94   18   15   13   18   13   16   16   22   24    6 |    83   87   83   83   88   81   82   80   89   79    83
   5  |   11   12   14   14   19    5   13   15   13   22    5 |    36   36   36   32   31   31   35   29   33   33    31
   6E |   13   10   14   10   18    4   10   21    8   14    4 |    48   51   51   48   51   47   49   49   50   46    48
   7E |   13   11   10   11   13    4   14   12   10   13    4 |    29   33   25   30   33   28   30   30   31   23    27
  X8E |   25   11   16   14  ---   12   15   19   12  ---    6 |    54   45   41   41  ---   40   46   34   35  ---    41
   9  |   10    7   15   13   16    3    8    6    6   13    3 |    38   42   34   38   45   38   40   37   39   31    37
  10  |    8    9   11   10   15    3    9   11    6   13    3 |    21   22   22   27   25   22   20   24   22   22    21
  11E |   10    9    7   10   13    5    8    9    7   14    3 |    25   27   19   24   27   20   24   23   25   25    23
  12  |   12   12   13   16   19    4    9   12   10   14    4 |    27   29   22   29   30   22   28   26   26   28    25
  13  |   13   15   13   14   17    5   15   14   11   14    5 |    32   37   31   36   41   32   36   34   35   34    33
  14  |   10   11   13   12   18    4    9   10   10   17    4 |    27   30   25   35   32   27   29   27   33   32    28
  15  |   14   14   12   14   14    4   13   16   13   21    5 |    33   34   27   36   30   28   33   27   30   36    29
  16  |   14   14    9   14   21    5   11   12   11   22    5 |    29   24   20   23   23   18   22   19   19   16    18
  17  |    8   20   11   21   20    4   13   13   10   15    5 |    23   33   21   32   32   20   26   22   22   22    22
  18  |   19   14   12   16   20    5   13   22   13   20    5 |    27   23   21   24   22   17   23   15   16   20    16
  19  |   12   13   11   13   19    5   12   15   10   15    4 |    26   26   20   28   27   20   25   21   21   25    21
  20  |    8   14   12   16   18    3   11   13   10   20    4 |    23   28   24   30   28   23   25   23   24   23    22
  21E |   13   12    6    9   18    4    9    9    7   12    3 |    36   30   30   37   32   32   35   32   33   37    32
  22  |   15   12   13   12   18    5   11   20   10   18    5 |    24   22   21   25   27   19   21   18   21   21    18
  23  |    9    8   13   13   17    4    9   14    8   20    4 |    29   31   26   30   32   27   30   20   29   20    25
  24E |   13   10   14   10   18    5   10   12   10   17    4 |    66   63   67   67   67   63   65   64   64   64    64
  25  |   11   14   13    9   16    3    8    9    9   14    4 |    22   27   25   22   26   20   27   19   21   28    21
 X26  |   27   16   15  ---  ---   18  ---   17   29  ---   11 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  27  |   10   13   12    8   15    5    9    9    8   12    3 |    23   24   21   19   21   16   22   19   22   19    19
  28  |   12   17   11   12   17    5   12   12    8   11    4 |    21   30   20   25   29   17   25   20   20   18    20
  29  |   16   16   10   12   16    4   14   13   10   23    5 |    30   27   21   27   23   21   27   27   25   28    23
 X30E |    5  ---  ---  ---  ---   33  ---  ---  ---  ---    0 |    19  ---  ---  ---  ---   19  ---  ---  ---  ---    19
  31E |   23   12    7   11   20    4    8   12    8   16    4 |    38   35   28   33   36   31   34   28   35   36    32
  32  |   13    9    9   11   20    3    7   11   10   10    4 |    18   20   17   23   25   17   21   19   18   14    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   22   13   12   12   18    5   11   14   10   17      |T   32   34   30   33   33   28   32   29   31   30    29
 WRMS |   13   13   12   11   17    4   11   13    9   16      |NE  28   30   25   29   28   24   28   24   26   26    24
 MEDI |   12   12   12   12   18    4   11   12   10   15      |MD  29   30   25   30   30   23   28   26   26   28    25

Table 3.1830.6   GPS week: 1830   Day: 6   MJD: 57060.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   16   13   14    8   13    4   10    8   11    8    4 |    23   28   28   22   23   21   26   22   25   19    22
   2E |   11   14    7   11   18    4   14   13   12   16    4 |    39   41   37   36   40   35   39   38   34   41    36
  X3  |   14    8   12   16  ---    4   11   13   13   32    6 |    91   90   90   76  ---   84   89   84   87   92    86
   4E |   65   16   16   14   17    8   19    9   16   10    8 |    91   91   89   92   91   89   94   87   96   88    89
   5  |   12   13   16   15   16    5   14   13   13   18    5 |    50   50   50   36   41   43   52   41   43   45    43
   6E |   25   10   16    8   16    6   13   17   10   11    5 |    55   58   61   53   56   54   56   55   54   55    54
   7E |   15   17    8   11   11    4   13    9   12   13    4 |    40   39   33   41   36   37   38   38   42   35    36
  X8E |   33   17   16   17  ---   10   18   18   15  ---    7 |    69   56   48   45  ---   49   57   41   46  ---    49
   9  |   10    8   14   11   10    5   12    8    9   11    3 |    46   51   42   51   53   46   50   50   47   40    46
  10  |   10   11   12   12   21    4   11   13    6   14    4 |    27   29   25   35   37   26   25   34   27   27    27
  11E |   14    7   10    8   13    4    9    7    8    8    3 |    24   24   15   20   26   17   24   21   22   20    19
  12  |   14   13   13   15   19    5   14   12    7   13    4 |    26   30   21   31   33   22   28   24   23   22    24
  13  |   11   15   16   15   18    5   15   17    9    9    5 |    36   44   35   47   50   38   41   44   42   39    40
  14  |   13   13   16   16   14    4   13   10   14   12    5 |    38   38   38   53   48   41   37   40   49   41    41
  15  |   15   15   15   19   12    5   16   15   11   16    5 |    40   45   39   48   42   39   43   38   42   42    40
  16  |   16   14   10   12   17    4   15   11    9   15    4 |    30   25   19   23   27   19   24   20   21   14    19
  17  |   11   21   12   22   15    4   12   15    9   16    5 |    31   40   25   40   35   27   31   34   27   23    29
  18  |   24   19   12   19   17    5   16   20   13   18    6 |    31   30   26   38   33   26   27   30   25   29    26
  19  |   10   13   12   11   15    5   16   13   10   12    4 |    28   30   21   27   28   21   28   26   21   23    23
  20  |   13   15   14   18   17    6   14   12    9   19    5 |    29   36   30   41   38   30   32   34   31   30    31
  21E |   17   28   10    9   17    5   16    9    8    9    5 |    30   39   24   27   31   25   30   24   27   28    26
  22  |   21   15   12   13   18    5   17   19   12   17    5 |    36   35   33   41   42   33   30   36   35   35    33
  23  |   13   10   13   15   13    5   14   15   15   16    5 |    32   36   30   41   36   34   35   36   36   26    32
  24  |   16   12   15   13   12   10    8   10    8   11    4 |    86   82   88   92   85   81   82   81   81   79    83
  25  |   11   12   15    8   14    4   10    7    6    9    3 |    20   25   23   20   25   18   24   18   18   21    19
 X26  |   23   14   25  ---  ---   13  ---   14   26  ---   10 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  27  |   15   13   13   10   15    5   12   10    7   11    4 |    28   32   25   25   27   20   28   21   22   23    23
  28  |    9   15   13   10   15    4   13   12    8   11    4 |    25   38   23   26   34   22   28   30   25   26    26
  29  |   20   15   13   12   15    6   16   11   12   18    5 |    28   28   18   24   28   18   29   23   22   23    21
 X30E |   12   12   14    9   15    5   10    6    8  ---    4 |    23    8    8    7   10   22    9    5    5  ---    23
  31E |   24   13    8   12   13    5   12   10    8   11    4 |    33   35   27   32   35   29   31   28   34   33    30
  32  |   13    8   11   10   13    5   10   12    8   10    3 |    19   28   21   25   28   22   28   27   24   20    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   19   14   13   13   15    5   14   12   10   13      |T   38   40   35   39   38   35   38   36   36   35    36
 WRMS |   14   14   13   12   16    5   14   12    8   13      |NE  34   38   31   37   36   31   35   34   33   32    32
 MEDI |   14   13   13   12   15    5   13   12    9   12      |MD  31   36   28   36   35   29   31   34   31   29    30



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 4.1830   GPS week: 1830   MJD: 57054.0-57060.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2985 |U    6     6    18 |U   15    13    41 |U    7     6    18 |
emr | emr 2981 |    14    10    22 |U   17    13    45 |     8     7    19 |
esa | esa 2989 |     5     6    19 |U   15    13    41 |     8     7    16 |
gfz | gfz 2954 |U    6     7    16 |U   16    13    41 |U    6     6    17 |
grg | grg 2770 |     7     6    18 |U   18    15    43 |U    7     7    24 |
igr | igr 2977 |     5     6    15 |    15    12    40 |     6     6    14 |
igs | igs 2969 |     5     6    17 |    15    13    40 |     7     7    16 |
jpl | jpl 2940 |    15    10    22 |U   16    12    42 |U    8     8    17 |
mit | mit 2989 |    16    10    20 |U   16    13    44 |U    8     8    20 |



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 5.1830.0   GPS week: 1830   Day: 0   MJD: 57054.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     5    20 |     9     8    35 |     7     6    20 |
emr | emr 2968 |    18    10    24 |    10     7    34 |     7     6    16 |
esa | esa 2976 |     8     6    24 |     9    10    35 |     6     6    14 |
gfz | gfz 2969 |    11     8    20 |    10     9    34 |     5     6    17 |
grg | grg 2880 |     8     6    14 |    14     9    37 |     6     7    29 |
igr | igr 2962 |     7     4    21 |     9     7    30 |     5     4    13 |
igs | igs 2924 |     8     6    21 |     9     7    30 |     6     5    15 |
jpl | jpl 2968 |     9     7    23 |     9     7    35 |     6     6    17 |
mit | mit 2976 |    11     6    21 |    10    10    36 |     6     8    19 |

Table 5.1830.1   GPS week: 1830   Day: 1   MJD: 57055.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     4     5    15 |    11    11    31 |     7     7    17 |
emr | emr 2968 |    22    15    25 |    15    14    38 |     8     8    20 |
esa | esa 2976 |     5     5    21 |    11    11    39 |     7     7    17 |
gfz | gfz 2967 |     6     5    15 |    11    14    37 |     6     7    17 |
grg | grg 2783 |     6     5    13 |    16    14    39 |     8    11    28 |
igr | igr 2963 |     5     6    19 |    11    12    38 |     8     7    15 |
igs | igs 2973 |     5     4    19 |    12    12    33 |     7     8    16 |
jpl | jpl 2968 |    21    13    23 |    12    11    37 |     8     9    18 |
mit | mit 2976 |    15    13    24 |    15    10    36 |    11    10    27 |

Table 5.1830.2   GPS week: 1830   Day: 2   MJD: 57056.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     6    18 |    28    20    60 |     6     7    16 |
emr | emr 2968 |     7     9    14 |    28    22    67 |     7     9    18 |
esa | esa 2976 |     5     6    13 |    27    18    53 |     7     7    14 |
gfz | gfz 2967 |     6     7    10 |    28    18    62 |     6     7    16 |
grg | grg 2784 |     6     6    11 |    33    23    72 |     6     8    25 |
igr | igr 2976 |     5     6     9 |    26    17    57 |     5     6    10 |
igs | igs 2971 |     5     6    10 |    26    19    64 |     6     8    13 |
jpl | jpl 2968 |     9     8    15 |    24    16    57 |     9    10    15 |
mit | mit 2976 |    20    10    18 |    25    21    62 |    11    12    30 |

Table 5.1830.3   GPS week: 1830   Day: 3   MJD: 57057.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     5     5    15 |    32    13    66 |     8     7    21 |
emr | emr 2968 |    19    10    20 |    34    14    59 |     7     5    19 |
esa | esa 2976 |     5     6    15 |    31    14    64 |     8     5    17 |
gfz | gfz 2968 |     6     6    13 |    32    13    63 |     6     4    14 |
grg | grg 2784 |     5     5    17 |    31    14    57 |     7     4    20 |
igr | igr 2976 |     6     7    12 |    31    12    63 |     6     4    13 |
igs | igs 2974 |     5     6    14 |    32    13    63 |     6     5    14 |
jpl | jpl 2968 |    22     9    18 |    32    12    61 |     8     7    18 |
mit | mit 2976 |    13     9    15 |    29    13    72 |     7     5    14 |

Table 5.1830.4   GPS week: 1830   Day: 4   MJD: 57058.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     5    17 |    11    18    35 |     7     5    16 |
emr | emr 2968 |     9     8    24 |    13    19    50 |     8     6    18 |
esa | esa 2976 |     5     7    17 |    11    16    35 |     8     7    16 |
gfz | gfz 2969 |     6     6    14 |    12    15    38 |     7     6    17 |
grg | grg 2688 |     7     6    19 |    12    19    42 |     8     6    24 |
igr | igr 2976 |     5     6    13 |    10    15    36 |     6     5    15 |
igs | igs 2974 |     5     5    18 |    11    17    35 |     7     6    16 |
jpl | jpl 2872 |    13    10    23 |    13    17    42 |     8     5    14 |
mit | mit 2976 |    14    10    17 |    14    16    45 |     7     6    16 |

Table 5.1830.5   GPS week: 1830   Day: 5   MJD: 57059.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2958 |     6     6    22 |     7     9    27 |     9     6    19 |
emr | emr 2968 |    13    10    27 |     8    12    35 |     9     9    20 |
esa | esa 2976 |     6     8    19 |     6    10    27 |    10     9    17 |
gfz | gfz 2872 |     6     7    18 |     6    11    23 |     9     8    17 |
grg | grg 2688 |     7     6    26 |     8    11    23 |     9     8    22 |
igr | igr 2933 |     5     6    14 |     6    10    22 |     9     7    16 |
igs | igs 2945 |     5     6    17 |     6    12    23 |     9     8    17 |
jpl | jpl 2872 |    16    11    29 |     7    13    26 |    10     9    17 |
mit | mit 2976 |    22    12    26 |     8    11    27 |    10     9    19 |

Table 5.1830.6   GPS week: 1830   Day: 6   MJD: 57060.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3057 |    11     8    20 |    10    11    32 |     7     7    18 |
emr | emr 3064 |    12     9    23 |     9     8    31 |     8     8    22 |
esa | esa 3072 |     5     8    23 |    10    11    31 |     8     7    18 |
gfz | gfz 2969 |     6     8    22 |    12    11    33 |     7     7    20 |
grg | grg 2784 |     7     7    27 |    13    12    34 |     8     7    20 |
igr | igr 3057 |     5     7    17 |    10     9    31 |     7     6    15 |
igs | igs 3027 |     5     7    20 |    10    10    30 |     8     8    19 |
jpl | jpl 2968 |    14    12    26 |    10    10    34 |     9     8    22 |
mit | mit 3072 |    15     9    20 |    10    11    32 |     8     7    18 |


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 6.1830   GPS week: 1830   MJD: 57054.500-57060.500

                                                         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     -25     184     153     -1 |      14     17
            |      27      18      99     145      6 |       1
emr   uuuuu |      -3       5     -41      26     -8 |      47     51
            |      35      24      90      79     12 |       2
esa   uuuuu |     -13       5     -16     -80     -3 |      12     17
            |      15      14      61      40      5 |       3
gfz   uuuuu |     -34     -51      25    -237     -1 |      12     17
            |      10      15      91     103      5 |       2
grg   uuuuu |      50      19     -91     244      0 |      49     50
            |      17      16      74      96     10 |       3
igr   xxxxx |     -12      -5      26     -51      2 |      -2     10
            |      16      22      79      55      3 |       1
irf   xxxxx |       3      -8     -17     -13     -6 |       5     12
            |      10      10      12      24      4 |       3
jpl   uuuuu |     -18      21      61     -32      4 |      30     34
            |      30      25      67      63     13 |       4
mit   uuuuu |      14     -20     -78      51     -6 |      25     27
            |      21      23      26      31      4 |       3
ngs   uuuuu |       7      20     -25     -24      4 |      11     14
            |      48      24      78     120      6 |       1
sio   uuxxx |      12      16    -305     -59     -8 |      64     65
            |      13      23      81     103      8 |       1


Table 7.1830.0   GPS week: 1830   Day: 0   MJD: 57054.500

                                                         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 |      12     -24     177      17      2 |      14     18
emr   uuuuu |     -66      -8     137     -53      1 |      49     53
esa   uuuuu |     -27      16     -43    -102     -7 |      17     21
gfz   uuuuu |     -42     -35     -76    -121     -3 |      16     20
grg   uuuuu |      80       7    -172     215     12 |      44     46
igr   xxxxx |     -15      25    -118     -46      1 |      -1     11
irf   xxxxx |     -12      -8     -23     -47     -5 |       9     13
jpl   uuuuu |     -65      48     140    -106     10 |      28     34
mit   uuuuu |      -6     -41     -99      48     -4 |      29     31
ngs   uuuuu |      94      22     -75     115      2 |      12     17
sio   uuxxx |      -6     -16    -275    -192     -6 |      64     66

Table 7.1830.1   GPS week: 1830   Day: 1   MJD: 57055.500

                                                         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     -38     262     178      9 |      14     18
emr   uuuuu |       8       0     -69     179    -30 |      48     52
esa   uuuuu |     -23      28     -24      -3     -9 |      14     19
gfz   uuuuu |     -42     -46      62    -340     -2 |      13     17
grg   uuuuu |      44      29     -90     407      7 |      46     48
igr   xxxxx |     -23     -11      39     -48      6 |      -2     11
irf   xxxxx |      -6      -8       9     -29    -12 |       7     12
jpl   uuuuu |      15       1     -21     -80     22 |      26     31
mit   uuuuu |      -5     -20     -30      23    -13 |      28     30
ngs   uuuuu |       0      21     -48    -184      1 |      10     14
sio   uuxxx |      22      29    -374    -158     -7 |      64     66

Table 7.1830.2   GPS week: 1830   Day: 2   MJD: 57056.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -22     -39     238     185     -6 |      16     18
emr   uuuuu |       0       2     -18     -39    -18 |      48     51
esa   uuuuu |     -31       2     -40    -127     -7 |      14     19
gfz   uuuuu |     -39     -27    -108    -309     -6 |      13     17
grg   uuuuu |      65      28    -136     305      5 |      48     49
igr   xxxxx |     -27      24     -18    -125      1 |      -1     10
irf   xxxxx |       3      -8     -27     -13    -10 |       7     12
jpl   uuuuu |     -52      13     120     -41     13 |      28     33
mit   uuuuu |      28     -23     -88      68     -9 |      28     29
ngs   uuuuu |      33      33      30      44     12 |      11     14
sio   uuxxx |      17      -8    -254      24    -13 |      65     66

Table 7.1830.3   GPS week: 1830   Day: 3   MJD: 57057.500

                                                         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 |      29     -34     167     243      1 |      12     15
emr   uuuuu |     -25     -36     -58       0     -5 |      44     48
esa   uuuuu |      -8      -3     -19     -99      3 |       9     14
gfz   uuuuu |     -41     -57     -11    -349     -5 |      10     15
grg   uuuuu |      49      20     -88     284      5 |      48     49
igr   xxxxx |     -28     -36      26    -127     -2 |      -4      9
irf   xxxxx |      -3     -27     -23     -26     -3 |       3     11
jpl   uuuuu |     -13      56       6     -47      8 |      27     32
mit   uuuuu |      -5     -55     -65      83     -3 |      24     26
ngs   uuuuu |       7      54      34     -21      0 |       9     11
sio   uuxxx |      27       7    -437       4      1 |      63     64

Table 7.1830.4   GPS week: 1830   Day: 4   MJD: 57058.500

                                                         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 |     -55       7     245     -43     -9 |      15     17
emr   uuuuu |       2      20     -46      58      2 |      46     50
esa   uuuuu |      14     -13      48     -80     -6 |      12     16
gfz   uuuuu |     -19     -64     102    -254      2 |      11     16
grg   uuuuu |      39      28    -147     136    -10 |      51     53
igr   xxxxx |       7     -10     134       6      3 |      -1      9
irf   xxxxx |       9       9     -19       7     -8 |       4     12
jpl   uuuuu |       5       0      61     -33      3 |      33     36
mit   uuuuu |       9      16     -69      85     -8 |      24     27
ngs   uuuuu |      -7      -2    -110     114     10 |      11     13
sio   uuxxx |      12      27    -253      93    -17 |      64     66

Table 7.1830.5   GPS week: 1830   Day: 5   MJD: 57059.500

                                                         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     -39     226      99      0 |      13     16
emr   uuuuu |      16      39    -159      53     -7 |      45     50
esa   uuuuu |     -13      -2      74     -88      3 |      10     16
gfz   uuuuu |     -22     -60      80    -181      7 |      11     16
grg   uuuuu |      35      31      48     223     -5 |      52     53
igr   xxxxx |      10     -12      34     -26      1 |      -2      9
irf   xxxxx |      15      -3     -18      27     -2 |       1     11
jpl   uuuuu |     -14      37      -1      93    -10 |      34     37
mit   uuuuu |      33     -12     -84      47      0 |      21     24
ngs   uuuuu |     -15     -18    -101    -104     -6 |      11     14
sio   uuxxx |      21      52    -336    -111      3 |      62     64

Table 7.1830.6   GPS week: 1830   Day: 6   MJD: 57060.500

                                                         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      -9     -25     390     -4 |      13     16
emr   uuuuu |      45      18     -77     -13      4 |      46     50
esa   uuuuu |      -6      10    -110     -62      0 |      11     16
gfz   uuuuu |     -33     -66     128    -102      0 |      13     16
grg   uuuuu |      39     -12     -53     140    -14 |      51     53
igr   xxxxx |      -7     -16      81       6      7 |      -1      8
irf   xxxxx |      14      -8     -18     -13     -4 |       1     11
jpl   uuuuu |      -1      -6     123     -13    -16 |      36     37
mit   uuuuu |      43      -6    -109       0     -3 |      20     23
ngs   uuuuu |     -61      29      92    -132      6 |      11     14
sio   uuxxx |      -6      21    -205     -73    -15 |      61     63



More information about the IGSREPORT mailing list