[IGSREPORT-23341] Wk 1828 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Thu Feb 5 07:32:07 PST 2015


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1828   (Jan 18, 2015 - Jan 24, 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:

igs1828[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1828[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1828[0-6].cls  IGS GPS clock combination summary report.
igs18287.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs18287.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
                0  |  EMR   | 8
                0  |  GFZ   | 1 2 3 6 9 30 1 3 6 30 BOGT CEDU INVK MDVJ BOGT MDVJ
                0  |  GRG   | BOGT BRST HOB2 MCM4 QAQ1 BOGT BRST HOB2 MCM4 QAQ1
                0  |  JPL   | 8 HOB2
                0  |  MIT   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                0  |  MIT   | 21 22 23 24 25 27 28 29 30 31 32 1 2 3 4 5 6 7 8
                0  |  MIT   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                0  |  MIT   | 27 28 29 30 31 32
                1  |  COD   | TLSE
                1  |  EMR   | 8 8
                1  |  GFZ   | 1 2 3 6 9 30 1 3 6 8 30 ALBH ALGO ALIC ALRT ARTU
                1  |  GFZ   | ASPA AUCK BAKE BARH BJFS BOGT BOR1 BRFT BRMU CAS1
                1  |  GFZ   | CEDU CHTI CHUR CONZ CORD CRO1 DARW DAV1 DRAG DRAO
                1  |  GFZ   | DUBO FAIR FLIN GLPS GLSV GODE GOLD GOPE GRAS GRAZ
                1  |  GFZ   | GUAM GUUG HARB HNPT HOB2 HOFN HOLB HOLM IISC INVK
                1  |  GFZ   | IRKJ ISPA KELY KERG KIRU KOUC KOUR LAMA MAC1 MAG0
                1  |  GFZ   | MAL2 MANA MAS1 MATE MAW1 MCM4 MDVJ NANO NICO NKLG
                1  |  GFZ   | NLIB NOVM NRIL NTUS NYA1 NYAL ONSA OPMT PDEL PERT
                1  |  GFZ   | PIE1 POL2 QAQ1 RABT REUN REYK SANT SCH2 SCOR SFER
                1  |  GFZ   | SOFI SSIA STHL STJO SUWN SYOG THTI THU3 TIDB TOW2
                1  |  GFZ   | TRO1 TWTF USUD VILL WES2 WHIT WILL WSRT WTZR XMIS
                1  |  GFZ   | YAKT YELL ZECK NTUS TLSE
                1  |  GRG   | REUN KOUC REUN
                1  |  MIT   | 1 10 19 27 10 19 27 CONZ
                2  |  COD   | 7 BOR1 GRAZ
                2  |  EMR   | 8
                2  |  ESA   | HOB2 MAG0
                2  |  GFZ   | 1 2 3 6 30 1 3 6 8 30 BOR1 HYDE
                2  |  GRG   | 15 DARW HYDE MCM4 DARW
                2  |  JPL   | 15
                2  |  MIT   | 8 15 19 1 8 15 18 19 TLSE
                3  |  COD   | 31 NRIL
                3  |  EMR   | 8
                3  |  ESA   | NTUS NTUS
                3  |  GFZ   | 1 2 3 6 9 30 1 3 6 8 30 HOB2 TOW2 HOB2
                3  |  GRG   | DAV1 MCM4 TLSE DAV1 MAL2 TLSE
                3  |  JPL   | 8 MAG0
                3  |  MIT   | 2 11 20 2 8 11 20 CONZ HARB
                4  |  COD   | TRO1
                4  |  EMR   | 8 30
                4  |  ESA   | 4 22 29 31 4 PIMO TRO1 MAG0
                4  |  GFZ   | 1 2 3 6 9 30 1 3 6 8 30 ALRT
                4  |  GRG   | MCM4 REUN TLSE TRO1 USNO WES2 REUN TLSE TRO1 USNO
                4  |  GRG   | WES2
                4  |  JPL   | 8 30 TIXI TLSE
                4  |  MIT   | 11 19 3 11 15 19 MOBS
                5  |  COD   | 30 MCM4 MCM4
                5  |  EMR   | 30
                5  |  ESA   | 8 MDVJ
                5  |  GFZ   | 1 2 3 6 8 9 30 1 3 6 30
                5  |  GRG   | DRAG MDVJ NLIB DRAG MDVJ SCH2
                5  |  MIT   | 8 19 19 30
                6  |  ALL   | 30
                6  |  COD   | 8 BOR1
                6  |  ESA   | 8 TIXI
                6  |  GFZ   | 1 2 3 6 1 3 6 BOR1 NRMD NRMD
                6  |  GRG   | DAV1 DAV1 IISC
                6  |  MIT   | 5 8 10 11 15 19 28 1 5 8 9 10 11 12 14 15 18 19 27
                6  |  MIT   | 28 31 KOUR MDVJ

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                4  |  GFZ   | ~23:55 | ~ -0.12 ns

 6. 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.

 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  |  COD   |  24
                4  |  COD   |  30
                6  |  ESA   |  30

 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 G24 |  4 |    |    |    |    |    |    |
           PRN G30 |  4 |  4 |  4 |  4 |  4 |  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 |   -1.7   -1.4   -2.3     -16     18    -11     .74
       EMR  |   0 |    4.5   -3.0   14.4      11     12      2     .46
       ESA  |   0 |    -.3    -.9     .0     -27    -16     45     .23
       GFZ  |   0 |     .0   -1.3   -2.9     -27    -59     22     .75
       GRG  |   0 |    1.5    -.2  -11.4      18    -16     38     .63
       JPL  |   0 |    3.2   -5.8    7.3      -2     -5     12     .45
       MIT  |   0 |    6.6   -4.3    9.1      15     12    -22     .74
       NGS  |   0 |   -2.4     .6   11.6      -8     26    -12     .71
       SIO  |   0 |    -.9  -11.1   25.5      58      2    -10     .54

       COD  |   1 |   -1.7   -1.0   -1.6      -7      7    -23     .44
       EMR  |   1 |    5.8   -6.0   13.5      24     13    -12     .35
       ESA  |   1 |    -.3    -.8    -.1     -16    -23     55     .17
       GFZ  |   1 |     .3    -.1   -2.5     -34    -72      8     .65
       GRG  |   1 |    3.8   -6.2  -11.3       3    -22     43     .40
       JPL  |   1 |    2.4   -4.6    9.3     -64      0    -18    -.03
       MIT  |   1 |    5.6   -4.0    4.8      -1     15    -30     .55
       NGS  |   1 |    -.1   -1.4    9.8     -22      3     -9     .39
       SIO  |   1 |    -.1   -4.7   19.0      10      5     -4     .33

       COD  |   2 |   -1.1   -1.4   -1.4     -13     -8     -2     .67
       EMR  |   2 |     .5    -.7   15.0       7     16      8     .46
       ESA  |   2 |     .2    -.8    -.4     -15    -11     70     .21
       GFZ  |   2 |     .6   -1.1   -3.3     -26    -76     23     .78
       GRG  |   2 |   -3.9   -1.2   -4.3     -21    -31     56     .51
       JPL  |   2 |    1.8   -5.2    9.3       0    -10     32     .27
       MIT  |   2 |    3.5   -1.7    8.7       8     14    -34     .63
       NGS  |   2 |     .0   -5.9   13.0     -45      0    -20     .31
       SIO  |   2 |    2.2   -3.5   21.0      17      6    -15     .61

       COD  |   3 |   -1.1   -1.3   -1.9     -23     -4    -11     .72
       EMR  |   3 |    7.2   -2.3   15.6      35     11      8     .34
       ESA  |   3 |     .3   -1.2    -.3     -20    -10     56     .22
       GFZ  |   3 |     .4    -.2   -2.6     -36    -63      5     .61
       GRG  |   3 |    9.8     .3   -9.3       1    -35     66     .56
       JPL  |   3 |   15.6   -5.0    9.9     -39      2    -19     .26
       MIT  |   3 |    9.2     .8    5.4       2      8    -27     .66
       NGS  |   3 |    7.1   -4.3   19.0     -50     -5     25     .69
       SIO  |   3 |    5.9   -3.1   19.6      10     11    -26     .45

       COD  |   4 |   -1.3    -.4   -1.9     -23      1     -9     .58
       EMR  |   4 |   12.1   -5.4   15.6      41      8     10     .24
       ESA  |   4 |    1.2   -1.2     .0     -28    -27     77     .41
       GFZ  |   4 |     .6    -.7   -2.2     -36    -52      6     .99
       GRG  |   4 |    6.0   -1.7  -10.8       4    -22     33     .97
       JPL  |   4 |    9.3   -6.9    9.3    -116      3    -19     .31
       MIT  |   4 |    6.9   -4.8    3.4       3      9    -32     .68
       NGS  |   4 |    7.7    -.9   15.5     -36    -26     31     .64
       SIO  |   4 |    6.0   -4.9   18.9      -9     39    -10     .55

       COD  |   5 |   -2.2    -.6   -1.4     -45     -6    -18     .62
       EMR  |   5 |    9.8     .7   22.1      51      6      4     .30
       ESA  |   5 |     .6    -.7     .0     -32    -19     54     .49
       GFZ  |   5 |     .2    -.3   -2.8     -51    -67      3     .83
       GRG  |   5 |    1.0   -8.3   -5.2       1    -36     35     .91
       JPL  |   5 |    7.3   -3.4   20.7     -28     18     16     .78
       MIT  |   5 |    1.4   -2.8    1.2      -2     15    -40     .72
       NGS  |   5 |    5.9   -1.5    6.8     -30    -16     21     .50
       SIO  |   5 |    4.4   -7.8   15.2     -18     28    -17     .68

       COD  |   6 |   -2.0    -.1    -.5     -36      5      1     .60
       EMR  |   6 |    5.4    6.3   20.3      33     -2      4     .48
       ESA  |   6 |     .8    -.8     .0     -31    -16     56     .30
       GFZ  |   6 |     .4    -.6   -2.6     -41    -78     14     .93
       GRG  |   6 |    3.8   -4.7   -5.4     -13    -18     63     .82
       JPL  |   6 |    5.9   -1.5   20.1     -28     25    -34     .99
       MIT  |   6 |    1.7   -2.6    4.3      19     16    -14     .73
       NGS  |   6 |   -6.0    4.5   11.6     -24     15    -27     .50
       SIO  |   6 |    1.9   -7.1   18.7       3      7    -24     .71


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 1.1828.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1828.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 2.1828.[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 3.1828.[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 5.1828.0-6). 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 1828 summary.                       (Jan 18, 2015 - Jan 24, 2015)

Table 1.1828.a   GPS week: 1828   MJD: 57040.000-57046.000

         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  246|   -1     2     1    16     8     0  -.04   15   13 |    -320   -1602     18    120
        |    0     1     1     9    19    12   .02           |     404     922
emr   80|    1    -2     3   -16   -11    19   .15   13   13 |   96124     434     20    157
        |    1     2     1    21     9    11   .02           |  242618     589
esa  150|    0     0     5   -10    -3     1  -.33   12   12 |     260    -298     13    168
        |    0     2     3     8    12     7   .02           |     716    1463
gfz  197|    1     0    -5    19    -8     8   .06   11   10 |    -134      96     15    175
        |    0     0     1    13    13    15   .02           |     527     944
grg  173|    3     0    -7   -25    17   -36   .12   17   16 |     -36     203     20    170
        |    1     1     3     8    24    11   .08           |     183     409
igr  n/a|    0     0    -1   -17     2    -5  -.15    5    5 |    7168      82     16     98
        |    0     0     1    12    16     6   .05           |     613     588
jpl   80|    1     0     3    -8    -5     0   .15   11   11 |  543280    -729     18    120
        |    1     1     1    21    22    34   .04           | 1425576    2688
mit  349|    0     0    -3    31     0     7  -.08   14   12 |    -135    -190     35    221
        |    1     0     1    38    23    12   .02           |     175     418
ngs  221|   -1     0     3   -20     3   -13   .01   10    9 |    -302   -1523   1259   2791
        |    1     0     2    23    33    19   .04           |     510    1035
sio  325|   -1    -1    -4    20    -7    10  -.11   15   15 |     ---     ---    ---    ---
        |    1     0     2    25    35    20   .01           |     ---     ---


Table 1.1828.b   GPS week : 1828   MJD: 57040.000-57046.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    4    4    4    4    4    4    5 |
   2  |    4    4    4    4    5    4    4 |
   3  |    4    4    4    4    4    4    4 |
   4  |    5    4    4    4    5    4    4 |
   5  |    4    4    5    5    4    5    5 |
   6  |    4    4    4    4    4    4    5 |
   7  |    4    5    4    5    5    5    5 |
   8  |    8    9    9    8    7    9    9 |
   9  |    4    4    4    4    4    4    4 |
  10  |    3    4    4    4    4    4    5 |
  11  |    4    4    4    4    4    4    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    5    5    5    5    5    5    5 |
  14  |    5    5    5    5    6    5    5 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    5    4    4    4    5 |
  17  |    5    5    5    5    5    5    5 |
  18  |    4    4    5    5    5    5    4 |
  19  |    4    4    4    4    4    4    4 |
  20  |    5    4    4    4    4    4    5 |
  21  |    4    4    4    4    4    4    4 |
  22  |    4    4    4    4    4    4    4 |
  23  |    5    5    5    5    5    5    5 |
  24  |   11    6    5    5    5    5    4 |
  25  |    4    5    5    4    4    4    4 |
  27  |    4    5    5    4    4    5    4 |
  28  |    4    5    5    4    4    4    5 |
  29  |    5    5    5    6    5    5    5 |
  30  |    4    5    6    6    5    8    0 |
  31  |    5    5    5    4    4    4    4 |
  32  |    4    4    3    3    3    3    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 2.1828.0   GPS week: 1828   Day: 0   MJD: 57040.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  249|   -1     3     0    31    -4    -5  -.04   12   12 |    -198   -1447     14    120
emr   80|   -1    -4     4   -28   -13    25   .13   11   11 |    4093     724     18    124
esa  150|   -1     1     8   -28   -28    10  -.36   11   10 |    -603    1549     11    152
gfz  203|    2     0    -5    15    -4    20   .02   11   10 |   -1271    2024     15    179
grg  174|    5     1   -12   -16    37   -51   .06   17   17 |    -147    1007     18    166
igr  n/a|    0     0     0   -14     7   -14  -.14    5    4 |    7488     756     15     98
jpl   80|    1     1     1    -8   -25     5   .18   11   11 |    4125     708     17    130
mit  349|    1     0    -3     7    31    -3  -.11   14   13 |     188      37     68    358
ngs  182|   -1     0     3     4    35   -35   .02   10    8 |    -533    -842   1227   3011
sio  329|   -1    -2    -6    24   -18    24  -.12   16   15 |     ---     ---    ---    ---

Table 2.1828.1   GPS week: 1828   Day: 1   MJD: 57041.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  251|    0     2     0    25    18    11  -.01   13   12 |    -909    -305     14    112
emr   80|    2    -4     4   -20    -7    30   .15   13   13 |    3549     148     17    166
esa  150|   -1     1     2    -2   -10     5  -.34   12   12 |    -788    1478     11    150
gfz  200|    0     0    -5     8    12     9   .07   10    9 |      17    -184     11    168
grg  174|    6     1   -11   -19    35   -27   .06   19   18 |     -60     319     18    178
igr  n/a|    0     0     0   -24     0    -9  -.15    5    5 |    7059       5     16    100
jpl   80|    2     0     1   -15   -35   -49   .15   12   12 |    3565     153     17    112
mit  349|    1     0    -1    29   -35    12  -.07   15   13 |    -367     319     30    186
ngs  232|   -2     1     4    -2    29     0   .00    9    8 |    -604    -759   1188   2678
sio  327|   -1     0    -3   -12   -34    21  -.11   14   13 |     ---     ---    ---    ---

Table 2.1828.2   GPS week: 1828   Day: 2   MJD: 57042.000                            

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|   -1     3     0    19    -6   -14  -.04   13   12 |    -225   -2280     13    109
emr   80|    0    -3     4   -41   -22    32   .12   12   12 |    3197     920     19    155
esa  150|    0     1     1   -10     0   -13  -.35   11   11 |     735    -979     13    167
gfz  200|    0     0    -6    20   -30     8   .09   12   11 |    -180     152     14    180
grg  176|    3     1    -6   -32    25   -48   .03   17   16 |     125    -237     17    195
igr  n/a|   -1     0     0   -30   -21    -9  -.16    5    5 |    6701     448     15     92
jpl   80|    1     0     5    15    -4    39   .17   12   12 |    3217     915     16    105
mit  349|    0    -1    -1    31    28    21  -.04   14   12 |     -89    -250     30    170
ngs  230|   -2     0     4   -32    -3   -35   .04   11   10 |    -386   -2017   1296   2569
sio  330|   -1     0    -3    39     0     8  -.11   14   15 |     ---     ---    ---    ---

Table 2.1828.3   GPS week: 1828   Day: 3   MJD: 57043.000                            

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|   -1     3     2     9    -6    -3  -.08   16   13 |    -383   -1260     17    126
emr   80|    1    -3     1   -37     5    22   .13   12   12 |    3975    -229     16    149
esa  150|    0     2     4    -8     9     0  -.31   12   12 |     246    -549     11    182
gfz  194|    0     0    -4    23    -2   -22   .08   11   11 |     -83     154     12    184
grg  175|    2     0    -8   -16    43   -28   .11   16   15 |     -23      37     17    178
igr  n/a|   -1     0    -2   -27     0     1  -.17    5    5 |    6977      10     17    104
jpl   80|    1    -1     2   -28   -17    17   .08   11   11 |    4056    -257     16    122
mit  350|    0    -1    -3    58    -7    -1  -.09   12   12 |    -217      18     27    192
ngs  225|   -3     0     4   -31     0     0   .07   10    9 |    -257   -1526   1339   2813
sio  325|    0    -1    -2    49   -36    -1  -.10   15   15 |     ---     ---    ---    ---

Table 2.1828.4   GPS week: 1828   Day: 4   MJD: 57044.000                            

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|   -1     4     1     1     0    14  -.04   20   13 |    -567   -1274     18    118
emr   81|    2    -5     4     2    -8    15   .17   14   14 |  646326    1273     15    148
esa  150|    0     0     4    -5    -3     0  -.31   11   11 |    1168   -2683     10    224
gfz  195|    1     0    -8    47   -13    14   .06   10    9 |     204   -1080     15    185
grg  174|    2     0    -7   -38   -20   -24   .17   16   15 |    -361     -76     19    155
igr  n/a|    0     0    -1   -15    12    -5  -.19    5    5 |    6280     660     17    108
jpl   80|    0    -1     3   -37    17   -43   .20   12   12 | 3776184   -6732     17    114
mit  350|   -2    -1    -4    11   -10    27  -.08   12   12 |    -222   -1017     32    220
ngs  230|   -1     1     4     6    30   -27   .00    9    9 |    -972    -513   1184   2829
sio  321|   -3    -1    -1    -8   -13    35  -.09   16   16 |     ---     ---    ---    ---

Table 2.1828.5   GPS week: 1828   Day: 5   MJD: 57045.000                            

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     5    15    13   -11  -.03   16   13 |    -377   -1413     17    128
emr   79|    1     1     3    16   -18    12   .13   13   13 |    5728     504     16    170
esa  150|    0     0     5    -6     7     5  -.33   12   12 |     678    -566      9    155
gfz  196|    1    -1    -6     8    -1     2   .04   10    9 |     311    -224      9    159
grg  171|    1     0    -2   -22     2   -46   .16   15   14 |     198      36     15    156
igr  n/a|    0     0    -1   -11    28     3  -.03    5    5 |    8159    -459     15     78
jpl   80|    0     0     5    20     3    28   .15   11   11 |    5760     475     17    132
mit  349|   -1     0    -4   -15     0    -1  -.07   13   12 |    -189    -171     27    180
ngs  228|    0     0     0   -31     0   -11  -.02   11    9 |      10   -1452   1175   2809
sio  323|   -1    -2    -4     7   -18    14  -.10   16   15 |     ---     ---    ---    ---

Table 2.1828.6   GPS week: 1828   Day: 6   MJD: 57046.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  251|   -1     0     2    13    46    12  -.06   13   13 |     416   -3240     34    132
emr   80|    0     1     3    -8   -18    -1   .18   13   13 |    6000    -299     44    188
esa  150|    1    -4    10    -9    -2     2  -.34   14   14 |     384    -339     30    147
gfz  196|    0     0    -4    14   -18    25   .06   11   11 |      63    -167     31    171
grg  170|    2    -1    -5   -32    -4   -27   .25   16   15 |      10     340     37    165
igr  n/a|    0     0    -3     4   -11    -7  -.19    5    5 |    7514    -842     21    107
jpl   80|    1     2     4    -2    24     0   .15   12   12 |    6056    -371     28    127
mit  349|    0    -1    -5   101    -6    -4  -.09   14   13 |     -49    -272     35    245
ngs  226|   -1     0     0   -55   -62    12  -.06    8    8 |     627   -3553   1406   2832
sio  323|    0    -1    -8    45    69   -27  -.11   15   15 |     ---     ---    ---    ---

       
       
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 3.1828.0   GPS week: 1828   Day: 0   MJD: 57040.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   10   10   13   10   18    4    7   12    7   16    4 |    28   30   34   24   38   26   31   30   27   37    29
   2  |   13   11    8   10   20    5   12   15    8   11    4 |    29   27   17   23   27   19   27   22   24   21    22
  X3  |    8   10   12   10  ---    3   12   10    8   10    3 |    17   17   20   16  ---   14   22   18   15   17    14
   4  |   12   13    8   11   16    5    8   18    7   21    4 |    51   55   50   51   49   48   52   61   49   57    51
   5  |    8   12   12   12   13    4   11   16   10   16    4 |    38   41   40   40   36   37   43   38   38   42    38
   6  |    9    7   13    7   16    4   12   15    6   11    3 |    32   35   35   28   34   29   38   27   32   29    31
   7E |   20   13    9    7   17    3    8   12   10   13    4 |    55   58   58   60   62   57   60   59   61   60    58
  X8E |   36   17   17   14   18    8   16   14   23  ---    7 |    56   36   34   31   14   35   34   27   40  ---    33
   9  |    8    8   15    7   16    3    8    9    9    8    3 |    29   36   30   29   34   28   38   29   29   31    30
  10  |    7    7    9    6   13    4    8   11    7   10    3 |    27   24   23   26   29   22   25   28   24   23    24
  11E |   10    6    8   10   19    4    8   13    6   14    3 |    42   40   37   40   47   37   40   46   42   40    40
  12  |   19    9   10   14   23    4   11   14   10   13    4 |    30   29   24   28   32   23   29   27   25   27    25
  13  |   10   16   14   11   23    4   14   12   11   17    5 |    26   35   24   30   42   25   36   28   21   26    27
  14  |   10   11   13   13   18    5   14   21   11   19    5 |    31   31   28   41   40   29   32   34   28   32    31
  15  |   14   13   12   12   16    5   12   14   11   23    5 |    46   49   43   41   39   40   46   40   42   49    42
  16  |   20   12    8   14   20    5   11   13   13   19    5 |    31   23   18   22   22   17   23   17   18   14    17
  17  |   10   13    9   14   21    5   12   17    9   14    4 |    29   32   21   26   36   23   34   14   25   25    25
  18  |   13   12   10    9   16    7   10    9   12   18    4 |    24   22   19   28   25   19   23   22   29   26    22
  19  |    9   12    7   10   18    4   11   15    8   16    4 |    25   24   19   21   26   18   25   22   21   22    19
  20  |   10    9   11   14   14    4    8   16   11   20    4 |    28   26   25   26   31   21   26   29   20   25    24
  21  |   14    9    7    9   18    6   11   10    9   15    4 |    27   24   20   25   30   21   24   20   22   16    21
  22  |   10    8   10    8   14    6   10   10   10   18    3 |    27   27   26   32   34   26   29   27   32   31    28
  23  |   11   13   12   14   17    4   10   13   13   22    4 |    27   30   21   29   30   21   29   24   21   16    22
 X24E |   79   19   22   17   32   10  ---   18   42   24   11 |   195  181  175  171  179  175  ---  177  171  189   174
  25  |   11   13   15    8   18    4   11   10   11   10    4 |    21   31   28   21   29   23   28   21   27   23    24
  27  |   15   12   13    8   14    3   12   12    6   17    4 |    29   25   31   25   25   23   25   24   25   29    24
  28  |    8   11   11   10   16    5   11   18    8   11    4 |    24   31   21   25   34   22   31   27   25   26    25
  29  |   17   15    7   12   19    5   14   14   12   15    5 |    27   23   18   26   23   19   25   18   22   21    20
  30E |   12   13   15    9   19    4    9   10    8   16    4 |   548   53  544   48   53  546   52   47   49   47   545
  31E |   10   10    9    8   13    4   11   23   11   13    4 |    41   43   37   43   45   39   42   56   42   46    42
  32  |   10   12    8   10   15    5    7    9    6   14    3 |    19   24   16   17   22   16   22   16   18   21    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   11   11   11   17    5   11   14   10   16      |T   53   37   49   35   38   48   33   34   34   35    49
 WRMS |   12   11   10   10   17    4   11   13    8   15      |NE  28   30   26   28   31   24   30   26   26   27    26
 MEDI |   10   12   11   10   17    4   11   13   10   15      |MD  29   31   26   28   34   23   29   27   27   26    25

Table 3.1828.1   GPS week: 1828   Day: 1   MJD: 57041.000                            

        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   13   13   11   16    3    8   12    6   17    4 |    30   34   35   28   32   28   33   26   30   38    30
   2  |   14   14    8    9   19    5   11   15   10   10    4 |    25   24   17   21   22   17   24   22   22   19    19
  X3  |    8   10   11   11  ---    3   14   10    8    7    3 |    15   16   18   16  ---   13   20   12   17   15    12
   4  |   10   15    9    7   20    7    9   15    8   14    4 |    30   41   31   30   30   32   33   33   33   37    31
   5  |    9   11   14   12   12    5   12   16    8   14    4 |    29   32   26   27   24   25   31   32   29   29    27
   6  |    8   11   10    9   16    4   11   12    7   12    3 |    28   32   32   25   33   25   32   26   26   30    27
   7E |   18   15   10    9   19    3   12   11   12   10    4 |    65   61   63   65   61   63   61   65   67   63    63
  X8E |   25   25   18   15  ---    9  ---   17   22  ---    9 |    45   36   31   29  ---   32  ---   27   40  ---    31
   9  |   12    8   15    5   15    2    9    8    7    8    3 |    27   28   23   23   27   22   30   24   26   24    24
  10  |    6    9   11    9   16    4   10   11    6   13    3 |    22   20   22   22   23   18   23   24   21   19    20
  11E |   13   11    9    6   17    6    8   15    7   13    3 |    34   37   34   34   37   33   35   33   35   34    33
  12  |   19   12   13   10   24    4   12   18    8   13    5 |    24   24   15   19   28   15   26   21   21   17    18
  13  |    7   15   15   11   21    4   15   13   11    9    4 |    26   33   21   25   36   21   35   23   24   23    25
  14  |   13   13   14   10   18    5   13   22   10   16    5 |    25   29   22   31   31   22   28   25   24   25    24
  15  |   10   14   15   10   15    6   16   17   10   16    4 |    28   35   31   28   28   26   35   29   28   34    28
  16  |   20   13   13   13   23    5   12   11   11   17    5 |    27   22   18   19   22   15   22   15   18   12    15
  17  |    7   16    6   12   23    4   18   16    8   10    4 |    26   32   19   24   35   20   36   15   24   19    22
  18  |   10   11   12   12   17    5   11   12   11   17    4 |    21   20   20   26   19   17   21   20   18   19    18
  19  |    9   10   10    9   21    5   16   14    9   15    4 |    21   22   17   19   26   16   25   19   18   15    16
  20  |   10   13   12   10   12    4   10   16    8   17    4 |    24   24   22   19   24   18   26   26   21   21    20
  21  |   12   12   10    9   17    7   10   13   10   13    4 |    21   22   16   22   26   15   20   16   18   15    16
  22  |   10    9   10    9   18    5   12   13   10   15    4 |    21   23   20   25   26   19   23   20   23   21    20
  23  |   10   13   13   13   18    5   12   12    9   22    4 |    25   29   21   27   23   20   31   24   23   13    21
 X24E |   24   12   15   11   21    7   20   11   14  ---    6 |    67   58   60   59   60   59   29   58   61  ---    58
  25  |   13   13   16   10   20    4   12   12    8   11    4 |    17   24   21   23   26   16   25   17   19   15    18
  27  |   14   15   16   11   18    4   13   12    8   16    4 |    28   26   29   24   26   20   23   21   22   23    22
  28  |    9   16   11   10   19    5   13   18   10   10    4 |    21   31   19   19   31   19   30   23   24   19    21
  29  |   21   15    9   10   19    6   13   16   10   19    5 |    27   20   15   24   24   16   23   19   22   18    18
  30E |   15   20   16   12   23    5   12   10    9    7    5 |   332   45  336   40   40  335   41   43   46   41   332
  31E |   16   12   11   11   17    5   13   29    9   13    5 |    41   40   34   42   40   37   36   57   41   42    40
  32  |    7   11    8    8   21    4    9    8    7   12    3 |    16   20   15   16   21   14   21   16   16   15    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   13   12   10   19    5   12   15    9   14      |T   38   30   35   27   30   33   29   26   27   24    34
 WRMS |   12   13   12    9   18    5   12   13    8   13      |NE  24   26   21   23   26   19   27   21   22   21    21
 MEDI |   12   13   12   10   18    5   12   13    9   13      |MD  26   29   22   25   27   20   28   24   24   21    22

Table 3.1828.2   GPS week: 1828   Day: 2   MJD: 57042.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    9   12   11   17    6    8   10   10   13    4 |    23   27   27   21   28   22   27   22   24   29    23
   2  |   13   13    7   11   16    6   13   14    9   12    4 |    23   27   18   23   19   19   25   21   24   20    20
  X3  |    6   10   10   13  ---    5   12    8    7    9    3 |    14   17   17   14  ---   12   18   13   17   14    12
   4  |   11   12    9   13   17    5    9   15    9   16    4 |    26   32   27   27   28   25   29   33   28   32    27
   5  |    7   12   12   14   14    6   14   14   10   16    4 |    30   36   31   33   26   30   38   35   37   35    32
   6  |   11    9   12   11   15    3   10   12    9   15    4 |    32   36   33   26   30   28   35   29   32   27    30
   7E |   14   15    8   12   18    4   12    8   12   11    4 |    50   44   45   45   49   43   46   49   49   49    45
  X8E |   20   20   18   13  ---   11  ---   14   25  ---    8 |    43   37   34   35  ---   36  ---   29   40  ---    33
   9  |    9    8   12    7   15    4    8    8   11   10    3 |    26   29   24   24   29   23   34   24   23   24    25
  10  |    8    8    8   12   10    4   11   11    8   12    3 |    22   22   21   23   22   18   21   26   22   21    21
  11E |    9   10    8   12   16    5    9   17    9   12    4 |    29   31   28   30   31   28   31   29   32   27    28
  12  |   17   12   11   12   26    4    9   17   16   13    5 |    29   27   21   26   31   22   26   26   29   22    23
  13  |    8   17   14   14   21    4   14   14   12   14    5 |    25   36   23   31   39   25   34   26   22   26    26
  14  |   11   13   13   13   17    6   12   22   12   20    5 |    28   31   27   40   33   28   32   34   31   31    30
  15  |   10   14   12   14   15    6   14   16   10   18    4 |    35   40   35   33   30   31   39   33   34   37    33
  16  |   16   10   10   14   17    6   12   11   11   17    4 |    27   23   20   24   24   18   22   17   16   10    17
  17  |    8   17    5   13   23    4   15   15   10   14    4 |    25   32   20   24   35   22   34   14   25   21    23
  18  |   14   11    9   12   14    4    9   12   14   17    4 |    21   21   20   25   17   21   21   21   28   22    20
  19  |   10   11    9    8   19    4   12   12    9   15    4 |    25   25   18   21   29   17   25   20   21   22    20
  20  |   10   12   10   13   11    4   11   14    9   17    4 |    20   23   21   20   15   17   21   21   18   20    17
  21  |   12   12    7   10   16    6   11   12   10   12    4 |    22   25   17   22   24   18   24   21   20   18    19
  22  |   12    7   10    9   14    6   10   12   12   16    4 |    24   26   25   31   28   25   25   24   33   24    25
  23  |   11   11   12   15   16    6   13   10   11   20    4 |    25   27   22   28   24   20   28   22   19   14    20
  24E |   24    9   14   12   17    5   13    9   14   11    5 |    60   56   55   53   55   53   20   54   51   44    53
  25  |   13   15   14    8   16    6   12   12   11   11    4 |    19   27   23   19   26   19   23   19   25   20    20
  27  |   12   13   14    9   15    3   11   10   12   16    4 |    27   25   29   29   27   25   24   25   30   23    25
  28  |    9   13    9   11   18    3   14   15   10   14    4 |    22   30   20   24   34   21   31   23   25   18    23
  29  |   21   16    8   12   19    6   12   14   11   15    5 |    26   24   14   21   26   17   21   19   21   20    17
  30E |   25   13   18   15   23    5   12   10   12    7    5 |   517   35  507   35   38  506   33   34   34   34   515
  31E |   13   12   10    8   12    5   13   25   11   12    4 |    56   55   52   54   58   54   57   66   56   58    56
  32  |   10    7    7    9   15    4    7    7    7   15    3 |    18   22   16   18   25   15   21   14   19   17    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   12   11   12   17    5   12   14   11   14      |T   44   30   41   28   30   40   28   27   28   25    41
 WRMS |   12   12   11   11   16    5   12   12   10   15      |NE  24   27   22   25   27   21   27   23   24   22    22
 MEDI |   11   12   10   12   16    5   12   12   11   14      |MD  26   27   23   26   28   22   26   24   25   22    23

Table 3.1828.3   GPS week: 1828   Day: 3   MJD: 57043.000                            

        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    9   13    9   15    5    9    8    6   19    4 |    21   23   28   21   27   19   22   24   22   32    22
   2  |   13   13    7   11   17    4   14   13   10   11    4 |    24   25   17   20   23   17   24   20   21   22    19
  X3  |    8    8   10   12  ---    4   10    7    8   13    3 |    11   14   17   14  ---   11   17   10   15   14    11
   4  |   10   14    9    9   15    5    8   12   10   17    4 |    24   29   24   23   21   22   28   30   27   31    25
   5  |    6   10   13   11   16    6   13   16   10   19    4 |    33   36   33   32   33   31   37   35   36   35    33
   6  |    8    9   10   11   13    3    9   11   10   16    3 |    27   32   33   25   31   26   30   25   28   29    27
   7E |   24   21   10    8   25    4   15    8   11    8    5 |    76   74   73   74   75   73   73   76   76   75    74
  X8E |   31   16   17   11  ---   10   18   16   20  ---    7 |    53   35   31   30  ---   32   36   25   33  ---    30
   9  |   10    8   14    7   14    4    9    9    9   12    3 |    27   29   26   24   29   24   32   26   26   26    25
  10  |    6   10    9   16   10    4   11   11    8   13    4 |    19   23   21   26   23   20   22   27   22   20    21
  11E |   10   15    8    8   16    4   10   11    7   15    4 |    23   24   18   20   29   18   23   26   23   27    21
  12  |   21   10   11   12   20    6   12   15    9   19    5 |    26   26   16   24   29   19   25   23   25   20    20
  13  |   12   15   14   15   20    4   15   16   11   15    5 |    27   33   23   32   39   26   35   30   23   31    27
  14  |   14   10   15   14   15    5   12   25   11   15    5 |    23   27   21   37   33   26   26   31   28   25    26
  15  |   13   13   15   12   15    5   13   15   11   19    5 |    39   44   40   36   34   36   43   33   35   40    36
  16  |   17   10   11    9   18    6   10    9   10   17    4 |    25   22   19   20   22   17   21   16   21   13    17
  17  |    9   20    8   15   21    5   16   14   12   10    5 |    26   33   20   26   33   21   31   14   27   19    22
  18  |   16   10   13   11   14    4    8   12   12   19    4 |    21   21   19   20   18   15   19   16   22   18    16
  19  |   11   10   11   11   17    5   13   10    9   16    4 |    21   24   17   22   21   17   23   15   19   17    17
  20  |   11   11   10   12   12    5   10   11    9   19    4 |    22   24   22   22   24   21   22   25   23   19    20
  21  |   10   11   10    9   18    4   11   12    9   15    4 |    20   25   15   20   27   16   20   16   18   12    17
  22  |   12    9   12    8   12    4    9   14   11   14    4 |    21   24   21   24   27   22   25   21   25   20    21
  23  |   11   10   13   13   17    5   12   10   12   23    4 |    21   28   20   27   26   20   29   24   20   12    20
  24E |   26    8   16   13   19    6   11    9   12   14    5 |    58   55   56   54   59   54   18   52   55   45    53
  25  |   17   12   13    7   13    6   11   12    8   13    4 |    17   27   22   20   23   16   23   19   20   19    19
  27  |   13   13   13   11   13    6   10    7    9   15    4 |    25   27   26   24   21   22   27   20   25   24    23
  28  |    9   13   10   10   14    3   13   12   10    9    4 |    21   29   20   22   29   19   27   22   22   18    21
  29  |   25   17   10   15   14    6   14   17   13   18    5 |    29   24   13   24   22   16   22   21   22   21    18
  30E |   36   12   16   11   21    5   10    9   13    7    5 |   530   41  529   40   42  531   36   38   40   38   528
  31E |   18   11    9    9   17    6    9   12   12   13    4 |    82   82   81   84   86   80   79   82   80   78    81
  32  |   10    8    8   10   12    3    6    7    7   12    3 |    20   21   19   22   18   17   22   17   22   15    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   12   12   11   16    5   11   12   10   15      |T   45   31   43   29   31   42   29   27   29   27    42
 WRMS |   13   12   12   11   15    5   11   12    9   15      |NE  23   26   22   24   26   20   26   22   23   22    21
 MEDI |   12   11   11   11   15    5   11   12   10   15      |MD  24   27   21   24   27   21   25   24   23   21    21

Table 3.1828.4   GPS week: 1828   Day: 4   MJD: 57044.000                            

        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   11    9   12    5    8   10    7   20    3 |    23   26   27   22   26   19   25   19   23   32    22
   2  |   14   14    8   10   16    5   15   14   11   14    4 |    27   27   18   24   22   18   27   19   23   19    20
  X3  |    7    9    9   11  ---    3   14    7    7   13    3 |    24   22   25   25  ---   22   31   20   27   20    21
   4  |   11   18    8    8   19    6    9   15   10   19    4 |    24   33   24   24   24   20   30   30   24   32    24
   5  |    8   11   12   12   15    5   14   12   10   16    4 |    31   37   29   32   28   30   38   35   37   34    31
   6  |    9   10   11   10   14    4   14   14   10   15    4 |    31   37   36   29   34   29   43   28   32   30    31
   7E |   18   20    6    9   16    4   17    8    8    8    4 |    46   38   36   42   44   36   37   38   43   37    38
  X8E |   27   19   13   10  ---    8   16   16   18  ---    7 |    46   34   30   32  ---   32   39   26   39  ---    30
   9  |   11    9   14    6   11    6   11    8    8   12    3 |    26   31   26   25   29   22   34   25   26   24    25
  10  |    8   10    8   11   16    4   12   11    9   14    4 |    20   20   20   23   23   16   22   24   19   18    18
  11E |   15   15    8    8   14    4    8    9    9   16    4 |    26   24   17   20   25   17   24   18   22   22    19
  12  |   23   12   11   11   21    6   10   15    9   16    5 |    25   25   17   24   27   17   27   22   22   21    20
  13  |   11   16   14   14   23    4   14   16    8   14    5 |    22   33   22   32   39   21   34   27   23   23    24
  14  |   15   14   14   13   18    5   14   23   11   13    5 |    26   28   23   41   36   25   29   33   29   26    28
  15  |   15   13   13   13   16    4   15   14   10   19    5 |    36   41   35   33   33   32   39   30   34   37    33
  16  |   15   11   11   10   13    6   11   10    9   18    4 |    25   21   17   20   20   14   23   17   20   16    15
  17  |   11   16    8   13   18    4   17   13   11   15    4 |    28   32   23   27   32   22   34   16   27   24    23
  18  |   17   18   13   12   16    4   13    8    9   20    5 |    22   21   18   25   19   16   19   17   21   22    16
  19  |   10   13    9    7   16    5   13   10    9   12    3 |    20   24   16   20   21   15   25   15   20   16    17
  20  |    9   11   10   12   11    4   11   13   10   18    4 |    20   25   22   23   22   17   23   22   19   17    18
  21  |   12   16   10    9   16    3   12   11    8   13    4 |    21   25   15   24   29   16   24   17   21   18    18
  22  |   13   10   11   11   15    5   13   11   10   15    4 |    25   23   20   30   26   20   22   22   24   21    21
  23  |   11   11   13   11   15    5   12    9   11   25    4 |    24   27   22   23   23   18   28   22   20   12    18
  24E |   22    9   15   10   20    6   10    7    8   14    4 |    38   38   40   37   45   36   19   36   33   36    36
  25  |   15   14   13    6   16    6   11   11    6   14    4 |    18   24   23   20   22   16   25   18   19   22    18
  27  |   17   14   13   11   14    6   10    8   10   13    4 |    28   25   26   24   21   20   28   19   24   22    22
  28  |   11   10   12    9   13    4   12   12    8   15    4 |    22   29   23   24   30   21   31   23   26   17    23
  29  |   19   18   10    9   16    5   16   18   11   16    5 |    28   26   18   25   21   19   30   19   26   21    20
  30E |   80   20   14    9   16   10   13   11   13   11    5 |   520   52  534   43   48  537   43   43   46   43   524
  31E |   15   12    8    7   17    3   10   13   10   11    4 |    55   57   57   58   60   57   56   60   56   61    57
  32  |   10   10    7    6   10    4   10    9    7   12    3 |    19   23   18   18   19   15   23   16   20   14    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   20   14   11   10   16    5   12   12    9   16      |T   43   29   41   28   29   39   30   25   27   25    40
 WRMS |   13   14   11    9   15    5   12   12    9   16      |NE  24   27   22   25   26   20   28   22   24   22    21
 MEDI |   13   13   11   10   16    5   12   11    9   14      |MD  25   27   23   25   26   20   28   22   24   22    22

Table 3.1828.5   GPS week: 1828   Day: 5   MJD: 57045.000                            

        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   14    8   13    2    9    9    8   18    4 |    20   26   27   21   27   21   24   19   18   32    21
   2  |   12   15    7    7   15    6   11   13   11   19    4 |    28   27   19   26   25   22   27   26   23   29    23
  X3  |   10    6   13   10  ---    4   11   10    9   12    4 |    19   18   23   16  ---   16   20   15   14   18    15
   4  |   11   10   10    8   17    4    9   12    6   16    3 |    23   29   22   21   24   22   26   29   20   31    23
   5  |   14   12   13    9   14    5   10   13   12   17    4 |    28   30   25   26   25   26   32   31   28   34    26
   6  |   12    8   11    7   15    4    7   17    8   12    3 |    30   31   33   27   34   28   32   29   28   31    29
   7E |   25   14    9   13   18    5   12   11   15   13    5 |    43   47   45   46   41   43   46   45   45   46    43
  X8E |   34   17   14   11  ---   11  ---   17   26  ---    9 |    52   35   29   30  ---   36  ---   26   39  ---    30
   9  |   13    7   16    8   12    4    9    9    8   11    3 |    25   29   23   23   28   22   30   24   21   25    23
  10  |    9   10   10    7   15    4   10   16    6   17    4 |    25   26   24   24   26   24   23   32   27   28    25
  11E |   10   11   10    7   14    4    8   10    6   14    3 |    21   28   20   24   28   21   24   20   20   26    21
  12  |   17   12   10   11   17    7   11   12   12   17    4 |    26   27   20   25   29   22   27   25   25   25    23
  13  |   11   14   15   12   22    5   12   11   10   13    4 |    22   33   23   27   38   25   32   25   28   28    26
  14  |   10   13   15   14   17    7   12   23   11   13    5 |    24   26   22   35   31   25   29   32   26   23    26
  15  |   17   14   14   11   14    7   13   14   13   21    5 |    35   35   29   29   30   29   34   26   27   35    28
  16  |   13   13   12    9   12    6   10   12   11   17    4 |    23   22   18   19   22   16   23   17   18   18    16
  17  |   11   14    8   11   15    5   11   16   12   16    4 |    28   31   21   27   31   25   30   14   28   25    24
  18  |   13   12   14   12   13    5   10    9   10   19    4 |    22   20   19   20   17   17   21   18   21   21    17
  19  |   10   11    8    9   13    4   13   10   11   12    3 |    21   21   13   19   20   15   22   14   16   16    15
  20  |   10   10   13   13   10    6    9   14    9   18    4 |    18   21   20   20   15   17   21   18   17   18    16
  21  |   16   13    9   10   17    4   10   11   10   15    4 |    24   19   16   20   29   17   24   19   18   22    18
  22  |   10   10   13    9   13    6    9   10    8   14    3 |    22   20   19   22   21   19   22   21   22   19    19
  23  |    8   12   14   11   15    6   12   11   10   22    4 |    22   26   19   20   23   18   27   20   18   14    17
  24E |   25    9   16   12   15    5    9   11   13   15    5 |    43   40   43   37   41   40   16   42   41   43    40
  25  |   10    9   12    7   12    8   10   10    8   15    3 |    18   25   23   18   25   20   23   20   20   26    20
  27  |   19   13   14    8   14    4   10   10   10   14    4 |    25   22   27   20   20   20   23   22   22   24    20
  28  |   10   16   13    9   14    4   10   13    9   15    4 |    23   28   20   23   28   20   28   21   22   21    21
  29  |   18   17    7    9   12    6   14   17   12   18    5 |    28   26   19   24   23   22   27   24   24   29    22
  30E |   45   22   14   11   28   10   13   14   18   17    7 |   921   73  871   75   74  865   71   70   73   71   931
  31E |   15   11    9    9   18    6    9   12   12   13    4 |    67   69   71   71   74   71   69   73   73   73    70
  32  |    8    9    8    7    9    4    7    9    8   11    3 |    27   27   24   23   23   22   28   21   24   21    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   16   13   12   10   15    5   11   13   11   16      |T   56   30   52   27   30   51   29   27   27   29    53
 WRMS |   13   13   12    9   14    5   11   12    9   15      |NE  24   25   21   23   25   21   26   22   22   24    21
 MEDI |   12   12   13    9   14    5   10   12   10   15      |MD  25   27   23   24   27   22   27   24   23   25    23

Table 3.1828.6   GPS week: 1828   Day: 6   MJD: 57046.000                            

        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   17    8   15    5   13   11    6   17    4 |    22   26   30   22   31   20   22   21   22   30    22
   2  |   10   13    7   12   16    4   16   13    8   12    4 |    24   25   15   22   25   19   25   23   23   23    20
  X3  |   13    5   14    8  ---    3   12   12    8   11    4 |    25   23   28   19  ---   22   23   21   27   21    22
   4  |   12    8   11    7   21    4   12   14    7   16    4 |    24   29   26   23   30   22   26   29   27   30    25
   5  |   12   12   15   13   13    6   15   11    8   19    4 |    40   42   36   36   37   36   42   39   37   41    37
   6  |   12   10   16   10   14    4    9   20    8   13    4 |    31   35   37   26   35   27   34   30   29   28    30
   7E |   17   17   19   13   14    5   12   16   11   14    5 |    48   45   45   45   46   46   47   50   47   48    45
  X8E |   36   20   15   16  ---    9   16   19   19  ---    8 |    51   37   30   32  ---   32   37   26   34  ---    31
   9  |   11    9   21   10   11    8    9   13    6   11    4 |    30   33   31   26   31   27   33   28   28   26    27
  10  |   11    9   15    8   21    3   13   18    7   13    4 |    24   26   30   28   35   23   26   36   23   27    26
  11E |   10   13   16    6   15    5   10   13    7   17    4 |    27   29   30   25   33   24   25   23   29   25    25
  12  |   15   13   11   16   16    5   11   15    8   15    4 |    25   26   17   25   30   18   25   24   21   18    21
  13  |   11   15   19   14   21    3   14   18   10   13    5 |    22   34   23   33   43   25   34   31   27   28    27
  14  |   11   14   16   14   17    4   13   21    9   13    5 |    27   29   24   41   39   30   28   36   32   29    30
  15  |   14   15   15   11   15    4   17   15    9   19    5 |    48   50   46   40   40   42   49   39   45   45    43
  16  |   15   13   12   10   15    5   12   14   10   16    4 |    28   28   21   22   24   21   25   18   23   18    21
  17  |   12   15    9   12   16    6   14   20    9   12    4 |    27   33   21   27   32   22   31   21   26   25    25
  18  |   12   11   12   11   15    4   11   10    8   18    4 |    21   22   19   27   24   18   20   20   20   21    19
  19  |    9   13   13    8   14    5   12   13    8   12    4 |    23   26   23   23   21   19   24   16   21   19    20
  20  |   13   12   16   11   15    6   11   18    9   21    4 |    25   30   26   28   31   25   30   33   25   25    26
  21  |   14   12    9   10   18    3   11   12    7   11    4 |    22   22   15   22   31   17   21   17   20   14    18
  22  |   11   11   15    9   11    4   12   10    9   15    4 |    23   27   26   31   33   26   28   28   28   30    26
  23  |   10   10   18   14   13    6   11   15    9   20    4 |    22   27   20   28   28   20   28   26   21   12    21
  24E |   14   10   16    9   22    6    9   12    8   12    4 |    44   43   44   45   43   42   19   43   44   38    42
  25  |   12   11   13   13   14    4   10   10    5   14    4 |    22   28   23   21   26   18   25   19   20   17    20
  27  |   14   12   13   10   10    4   10   10    8   15    4 |    27   27   30   25   23   23   27   22   26   28    25
  28  |   17   16   15   10   13    5   11   15    7   11    4 |    28   32   26   25   30   21   28   26   22   23    24
  29  |   16   19    7   13   15    5   15   14   12   20    5 |    26   27   17   22   22   17   25   20   24   20    20
 X30E |    3  ---  685  ---  ---  671  ---  ---  ---  ---    0 |  9999  --- 9999  ---  --- 9999  ---  ---  ---  ---  9999
  31E |   13   12   11    9   20    3   10   13   10   11    4 |    65   67   69   68   76   67   66   69   66   65    66
  32  |   10   11   12    8   12    3    7   10    8   12    3 |    24   24   24   24   26   20   27   25   23   24    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   13   14   11   16    5   12   14    8   15      |T   29   31   28   29   33   26   30   28   28   27    27
 WRMS |   13   13   14   11   15    5   12   13    8   15      |NE  26   29   25   26   30   23   28   25   25   24    24
 MEDI |   12   12   15   10   15    5   12   13    8   14      |MD  25   28   26   26   31   22   27   26   26   25    25



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 4.1828   GPS week: 1828   MJD: 57040.0-57046.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |U    7     7    19 |U   14    20    53 |U    8     9    20 |
emr | emr 2958 |    10     8    20 |U   15    19    53 |     7     6    17 |
esa | esa 2976 |     7     6    20 |U   13    18    50 |     7     7    17 |
gfz | gfz 2958 |U    9     7    18 |U   14    18    52 |U    6     7    15 |
grg | grg 2779 |     7     6    16 |U   15    17    53 |U    7     7    19 |
igr | igr 2948 |     7     6    14 |    13    18    51 |     6     7    15 |
igs | igs 2939 |     7     6    16 |    14    18    49 |     6     8    16 |
jpl | jpl 2904 |    10     7    19 |U   14    17    50 |U    7     8    17 |
mit | mit 2962 |     9     8    20 |U   17    21    55 |U    7     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 5.1828.0   GPS week: 1828   Day: 0   MJD: 57040.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     9    24 |     9    14    28 |    10    11    23 |
emr | emr 2972 |    12     7    16 |    13    12    36 |    10     9    22 |
esa | esa 2976 |     6     4    11 |     9    11    27 |     8     9    21 |
gfz | gfz 2972 |     8     5     9 |     9     9    34 |     8     8    19 |
grg | grg 2850 |     7     6    14 |    14    10    29 |    11    12    23 |
igr | igr 2976 |     5     4    10 |     9    10    28 |     7    10    23 |
igs | igs 2976 |     5     3     9 |    10    10    27 |     9    10    20 |
jpl | jpl 2876 |    13     7    16 |    11    10    32 |     9    10    24 |
mit | mit 2976 |    10    12    18 |    24    29    47 |     9    12    20 |

Table 5.1828.1   GPS week: 1828   Day: 1   MJD: 57041.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     9    21 |    16    21    62 |     7     6    17 |
emr | emr 2972 |    11     8    18 |    17    22    79 |     6     5    11 |
esa | esa 2976 |     6     7    18 |    15    17    62 |     6     4    12 |
gfz | gfz 2972 |     7     7    18 |    15    16    65 |     5     4    11 |
grg | grg 2784 |    10     6    16 |    17    16    70 |     7     5    16 |
igr | igr 2976 |     6     6    13 |    15    17    73 |     5     3     9 |
igs | igs 2976 |     7     6    14 |    16    17    64 |     5     4     9 |
jpl | jpl 2880 |     8     7    16 |    15    17    65 |     6     4    11 |
mit | mit 2976 |     6     7    16 |    17    16    61 |     6     6    13 |

Table 5.1828.2   GPS week: 1828   Day: 2   MJD: 57042.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     5    16 |     9    13    43 |     6     7    17 |
emr | emr 2972 |     9     5    15 |    12    15    39 |     7     5    15 |
esa | esa 2976 |     5     5    14 |     9    13    42 |     5     6    15 |
gfz | gfz 2971 |     6     4    14 |     9    13    44 |     5     7    14 |
grg | grg 2783 |     6     4    11 |    14    15    46 |     7     6    18 |
igr | igr 2975 |     6     3    10 |     9    12    42 |     5     5    14 |
igs | igs 2971 |     5     3     9 |    10    13    40 |     5     6    13 |
jpl | jpl 2880 |     7     5    12 |     9    12    40 |     6     6    15 |
mit | mit 2976 |     9     7    12 |    10    18    53 |     5     7    15 |

Table 5.1828.3   GPS week: 1828   Day: 3   MJD: 57043.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     6     6    16 |    16    28    58 |     6     8    18 |
emr | emr 2972 |     7    10    16 |    15    25    59 |     4     5    14 |
esa | esa 2976 |     7     9    20 |    15    23    52 |     5     7    13 |
gfz | gfz 2972 |     9     7    14 |    16    25    59 |     4     6    13 |
grg | grg 2784 |     5     9    15 |    14    21    58 |     6     7    17 |
igr | igr 2976 |     6     7    13 |    15    25    61 |     5     7    13 |
igs | igs 2960 |     6     7    16 |    15    23    52 |     5     7    14 |
jpl | jpl 2972 |    10    10    16 |    14    20    59 |     7     7    14 |
mit | mit 2976 |     8     8    18 |    17    21    59 |     6     8    15 |

Table 5.1828.4   GPS week: 1828   Day: 4   MJD: 57044.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8     6    17 |    22    33    80 |     8    10    17 |
emr | emr 2972 |    11     8    27 |    22    34    79 |     6     6    18 |
esa | esa 2976 |     8     5    26 |    19    33    81 |     6     7    14 |
gfz | gfz 2973 |    14    12    28 |    21    38    81 |     6     7    13 |
grg | grg 2784 |     7     6    22 |    22    36    75 |     6     6    20 |
igr | igr 2975 |     7     5    19 |    20    33    81 |     5     7    14 |
igs | igs 2973 |     7     5    23 |    23    35    81 |     5     6    15 |
jpl | jpl 2972 |     8     5    20 |    22    38    79 |     7     9    16 |
mit | mit 2976 |    11     6    28 |    24    40    83 |     8    12    17 |

Table 5.1828.5   GPS week: 1828   Day: 5   MJD: 57045.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     7     8    18 |    10    13    45 |     8    12    26 |
emr | emr 2972 |     9     7    23 |    10    15    44 |     6     8    19 |
esa | esa 2976 |     8     7    23 |    11    15    42 |     9     8    22 |
gfz | gfz 2973 |     9     7    19 |    10    13    41 |     6     9    17 |
grg | grg 2784 |     6     7    17 |    10    12    49 |     8     9    23 |
igr | igr 2878 |     7     7    16 |    10    16    40 |     6     9    16 |
igs | igs 2853 |     7     6    18 |    10    16    41 |     7     9    18 |
jpl | jpl 2878 |    11     8    23 |    11    14    42 |     8    10    22 |
mit | mit 2976 |     8     7    20 |    11    13    44 |     7     9    17 |

Table 5.1828.6   GPS week: 1828   Day: 6   MJD: 57046.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |  ----  ----  ---- |  ----  ----  ---- |  ----  ----  ---- |
emr | emr 2876 |    12     9    28 |    14    13    38 |     7     7    20 |
esa | esa 2976 |    10     8    27 |    17    15    44 |     8     7    20 |
gfz | gfz 2876 |    11     6    25 |    15    11    38 |     6     6    18 |
grg | grg 2688 |     9     7    19 |    14    12    46 |     7     6    19 |
igr | igr 2880 |    10     8    18 |    14    10    36 |     7     7    17 |
igs | igs 2866 |    11     9    25 |    14    11    41 |     7    13    26 |
jpl | jpl 2876 |    14     8    26 |    14    11    35 |     7     8    17 |
mit | mit 2880 |    14     8    27 |    14    14    38 |     7     7    19 |


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 6.1828   GPS week: 1828   MJD: 57040.500-57046.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -16      -5      75      -8     -3 |       7     12
            |      13      16      71     144      5 |       1
emr   uuuuu |       7       9      69       4     -1 |      31     35
            |      35      21     160      80      9 |       2
esa   uuuuu |       2      24    -111     -27      0 |      13     17
            |      23      11      58      66      4 |       1
gfz   uuuuu |     -33     -23     -28    -149      3 |      11     15
            |      13      16     140     101      7 |       3
grg   uuuuu |       7      39    -144     134      2 |      21     24
            |      10      16     101     108      6 |       3
igr   xxxxx |     -17      14      43      15     -2 |      -2     11
            |      27      15      65      56      3 |       1
irf   xxxxx |      12      -3      -1      61      1 |       3     11
            |       7       4      29      35      3 |       2
jpl   uuuuu |       1     -18     135     -51     -8 |      37     39
            |      42      18      79      86     11 |       2
mit   uuuuu |      37     -16     -50     160      4 |      18     21
            |      13      15      77      51      4 |       2
ngs   uuuuu |       1       9       1      34     -2 |      14     18
            |      54      27     184     133      4 |       2
sio   uuxxx |      12      -4    -157      37      4 |      41     42
            |      19      25     105      80      4 |       3


Table 7.1828.0   GPS week: 1828   Day: 0   MJD: 57040.500

                                                         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 |     -14     -30     128     -84     -1 |       7     10
emr   uuuuu |      23      -5     348     -53    -16 |      35     39
esa   uuuuu |      15      39    -137     -18     -5 |      14     17
gfz   uuuuu |     -26     -40      72     -78      1 |       8     12
grg   uuuuu |       0      24     -81     126      7 |      16     20
igr   xxxxx |     -22      32     120       7     -1 |      -2     10
irf   xxxxx |      22      -1     -36     113      2 |       2      9
jpl   uuuuu |      36     -11     132      28     -3 |      40     41
mit   uuuuu |      52      -4    -151     214      4 |      15     17
ngs   uuuuu |     -83      41    -290     -29      1 |      13     17
sio   uuxxx |      50     -23     -50     107      8 |      36     37

Table 7.1828.1   GPS week: 1828   Day: 1   MJD: 57041.500

                                                         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 |     -20      -1     -47       4     -4 |       7     10
emr   uuuuu |      27       6     125      15      1 |      31     34
esa   uuuuu |      13       7    -141     -33     -4 |      12     15
gfz   uuuuu |     -34     -31     134     -33      2 |       7     11
grg   uuuuu |      21      19     -38     256      7 |      17     21
igr   xxxxx |      14      23     111     125      0 |      -3      8
irf   xxxxx |      12      -1     -38      83      4 |       1      9
jpl   uuuuu |      63      -4     222     -98     -8 |      38     39
mit   uuuuu |      44      -1    -148     194      8 |      15     18
ngs   uuuuu |     -54      23    -128     -84      1 |      12     16
sio   uuxxx |      -1      -9     -38     -47      2 |      37     38

Table 7.1828.2   GPS week: 1828   Day: 2   MJD: 57042.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -13      -3     160     -61     -1 |       9     12
emr   uuuuu |      57      34      44     120     -8 |      32     36
esa   uuuuu |     -27      20     -97     -37     -2 |      14     17
gfz   uuuuu |     -41     -37      83    -160      4 |      10     14
grg   uuuuu |       7      61    -106     231      1 |      22     25
igr   xxxxx |       6      24      92      13      2 |       0      9
irf   xxxxx |      12     -11      34      94      4 |       5     12
jpl   uuuuu |      -8     -29      48     -43      1 |      39     41
mit   uuuuu |      52     -35     -35     201      9 |      19     22
ngs   uuuuu |     -22      31    -110    -113     -5 |      16     19
sio   uuxxx |      17     -33     -60     112      3 |      41     42

Table 7.1828.3   GPS week: 1828   Day: 3   MJD: 57043.500

                                                         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 |     -14     -14      40    -105     -7 |       6     11
emr   uuuuu |     -17      35     -81     -31     -1 |      27     32
esa   uuuuu |     -22      14     -42     -90      1 |      11     15
gfz   uuuuu |     -54     -25    -254    -325     11 |       8     13
grg   uuuuu |     -11      29     -61     238     -4 |      19     23
igr   xxxxx |     -25      13      -3     -42      2 |      -4     10
irf   xxxxx |      10      -4     -15      34     -1 |       2     10
jpl   uuuuu |      29      -5     257      64    -26 |      36     37
mit   uuuuu |      24     -18     -76      72     -1 |      17     20
ngs   uuuuu |      47      -6     179     224      4 |      11     16
sio   uuxxx |       4      -1    -257     -95      4 |      40     41

Table 7.1828.4   GPS week: 1828   Day: 4   MJD: 57044.500

                                                         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 |     -28      24      47    -165     -9 |       8     13
emr   uuuuu |      20      22    -152      64     12 |      29     34
esa   uuuuu |      -1      24     -44     -86      4 |      13     17
gfz   uuuuu |     -35     -24    -147    -235      9 |      11     18
grg   uuuuu |      14      49    -189      65     -3 |      22     25
igr   xxxxx |     -27      14     -54     -37     -7 |      -1     12
irf   xxxxx |       3       0      16      24     -1 |       4     13
jpl   uuuuu |     -29       4     126      -8      3 |      36     37
mit   uuuuu |      22     -34      31     156      0 |      19     23
ngs   uuuuu |      35     -32     220     207      1 |      14     19
sio   uuxxx |       0      17    -179      36     -1 |      42     44

Table 7.1828.5   GPS week: 1828   Day: 5   MJD: 57045.500

                                                         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       1     132     104      0 |       8     13
emr   uuuuu |     -14     -11     108      38     -2 |      31     36
esa   uuuuu |      -3      31    -111     -35     -1 |      15     19
gfz   uuuuu |     -17       5     -87    -111      1 |      15     20
grg   uuuuu |       9      38    -320      19     11 |      24     27
igr   xxxxx |     -65       5       9       2     -4 |       0     12
irf   xxxxx |       7      -6      16      42      3 |       6     13
jpl   uuuuu |     -46     -40      99    -127     -7 |      37     39
mit   uuuuu |      25     -17      17     168      6 |      21     24
ngs   uuuuu |      52     -13      92      40     -8 |      16     21
sio   uuxxx |      -3      38    -282      62      8 |      44     45

Table 7.1828.6   GPS week: 1828   Day: 6   MJD: 57046.500

                                                         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 |     -34     -13      65     254      5 |       6     13
emr   uuuuu |     -48     -16      89    -123      6 |      29     35
esa   uuuuu |      40      32    -205     107      7 |      13     18
gfz   uuuuu |     -22      -7       1    -100    -10 |      14     20
grg   uuuuu |      12      56    -212       6     -2 |      24     26
igr   xxxxx |      -1     -12      29      36     -4 |      -3     13
irf   xxxxx |      18       1      16      35     -2 |       4     13
jpl   uuuuu |     -36     -38      58    -173    -19 |      34     36
mit   uuuuu |      42      -2      13     117      0 |      20     24
ngs   uuuuu |      32      19      46      -6     -5 |      13     20
sio   uuxxx |      15     -19    -232      85      2 |      43     45



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