[IGSREPORT-29470] Wk 2274 IGS Final Orbits

acc acc at igs.org
Mon Aug 28 04:38:22 UTC 2023


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2274   (Aug 06, 2023 - Aug 12, 2023)

Contacts: acc at igs.org


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:

IGS0OPSFIN_${yyyy}${doy}0000_01D_15M_ORB.SP3  IGS GPS ephemeris files in SP3
                                              format.
IGS0OPSFIN_${yyyy}${doy}0000_01D_05M_CLK.CLK  IGS GPS satellite and station
                                              clocks in clock RINEX format.
IGS0OPSFIN_${yyyy}${doy}0000_01D_01D_CLS.SUM  IGS GPS clock combination summary
                                              report.
IGS0OPSFIN_${yyyy}${doy}0000_07D_01D_ERP.ERP  Earth Rotation Parameters (ERP)
                                              and their rates as well as
                                              Universal Time (UT1-UTC) and
                                              Length Of Day (LOD) associated 
                                              with IGS ephemerides.
IGS0OPSFIN_20232180000_07D_01D_SUM.SUM        Complete report.

    
REMARKS concerning the IGS Orbit Combination:                                  
---------------------------------------------

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, GRG, 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.
    

 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   | 15 DAV1 LHAZ
                0  |  GFZ   | JFNG UNSA
                0  |  GRG   | 13 13 KIRI COCO GAMB KIRI SGOC WIND
                1  |  COD   | JFNG KIRI
                1  |  ESA   | CZTG KITG NNOR
                1  |  GFZ   | JFNG JFNG
                1  |  GRG   | KIRI COCO CZTG KIRI
                2  |  COD   | DJIG PIE1
                2  |  ESA   | WIND
                2  |  GFZ   | GAMB JFNG GAMB
                2  |  GRG   | KIRI GAMB KIRI SVTL
                3  |  COD   | JFNG LHAZ
                3  |  ESA   | NRMD
                3  |  GFZ   | 5 5 JFNG LAUT
                3  |  GRG   | CZTG KIRI LHAZ CZTG GAMB KIRI LHAZ SCUB SVTL
                4  |  COD   | HYDE MATE
                4  |  ESA   | JFNG JFNG
                4  |  GRG   | 17 17 CZTG CZTG KIRI SCUB SVTL
                4  |  MIT   | 2 21
                5  |  COD   | 9 28 SCUB
                5  |  ESA   | JFNG
                5  |  GFZ   | JFNG SCUB SCUB
                5  |  GRG   | 13 13 AREQ KIRI SVTL
                6  |  ALL   | 28
                6  |  COD   | HYDE
                6  |  ESA   | AREQ NRMD
                6  |  GFZ   | 1 32 1 32 OUS2 SYOG OUS2 POHN SCUB
                6  |  GRG   | 21 21 28 COCO JFNG AREQ COCO JFNG KIRI NYA2 ULAB
                6  |  MIT   | 28

 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 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
               ----+--------+---------------
                6  |  GFZ   |   1

 7. 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.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.
    
    Starting 17-May-2020 (GPS Week 2106, day 0, MJD 58986) all IGS products,
    are based on the updated reference frame (IGb14).
    For more information see IGSMAIL #7921.
    
    Starting 28-Nov-2022, all IGS products, are based on the IGS realization of
    the ITRF2020 reference frame (IGS20). Starting from the same date, the IGS
    products are based on the repro3 standards, including long filename formats.
    For more information see IGSMAIL #8238, #8256, #8274 and #8282.
    

 8. 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 |     .7   -1.2    1.0       8    -12     12     .14
       ESA  |   0 |     .5    -.2     .5      15     -8     14    -.31
       GFZ  |   0 |     .4    -.8    -.3     -17    -13     24     .39
       GRG  |   0 |    1.2    -.6   -1.6       7      2     38    -.01
       JGX  |   0 |    5.6   -2.8   12.4      -7     -4     25    -.05
       JPL  |   0 |    9.1   -1.5    -.2      -2     75    -37     .39
       MIT  |   0 |    6.7   -2.5    6.1     -12     -2      8     .15
       NGS  |   0 |    6.4   -1.8    2.0     -21    -15      6    -.03
       SIO  |   0 |    5.5   -2.4   -3.1       7     90      3    -.22

       COD  |   1 |     .9   -1.2    1.1      -1    -10      6     .02
       ESA  |   1 |     .3     .2     .5      11    -16     11    -.36
       GFZ  |   1 |     .1   -1.2    -.3      -7    -14     32     .37
       GRG  |   1 |     .9   -1.3   -1.0       4      0     31    -.01
       JGX  |   1 |    4.9   -7.9   14.0      -9    -10     36    -.07
       JPL  |   1 |     .8   -3.7   -2.1     -15     64    -30     .57
       MIT  |   1 |    4.5   -8.3    9.1     -24    -12     17     .12
       NGS  |   1 |    1.0   -6.4    3.9     -29      7      9    -.10
       SIO  |   1 |    2.5   -3.3    -.9      11     41    -17    -.18

       COD  |   2 |     .4   -1.2    1.2       4    -10      2    -.10
       ESA  |   2 |     .3     .2     .6       0    -10      4    -.46
       GFZ  |   2 |    -.2   -1.9    -.6     -14    -21     21     .30
       GRG  |   2 |     .9   -1.3   -1.0       2      0     27    -.03
       JGX  |   2 |    7.6   -6.5   15.8      -9     -8     32    -.21
       JPL  |   2 |    -.8   -6.3    1.0      -1     63    -34     .55
       MIT  |   2 |    2.8   -9.4    8.2      -5      4     17    -.03
       NGS  |   2 |   -1.6   -6.4    2.1     -31     18      8    -.09
       SIO  |   2 |    1.4   -7.9    4.4     -58    -20    -11    -.01

       COD  |   3 |     .5   -1.2     .8      -1    -15      5    -.13
       ESA  |   3 |     .1     .1     .4      11     -7     -4    -.54
       GFZ  |   3 |    -.2    -.9    -.6     -10    -14     19     .35
       GRG  |   3 |     .9   -1.3   -1.1      13     -4     36    -.15
       JGX  |   3 |    5.0    -.0    9.3     -10    -15     30    -.30
       JPL  |   3 |    2.2   -7.5    -.0       2     57    -32     .57
       MIT  |   3 |    2.1   -5.8   10.5     -16      7     -4    -.05
       NGS  |   3 |    -.7    -.7    4.6      -9     14     -2    -.12
       SIO  |   3 |    4.6    -.3   -6.1      57     -3     -9    -.17

       COD  |   4 |     .2    -.7     .9       2     -9      7    -.15
       ESA  |   4 |     .2     .4     .5       5     -9      2    -.56
       GFZ  |   4 |    -.4    -.6    -.1     -18     -2     19     .34
       GRG  |   4 |     .8    -.8    -.7      -2     -2     18    -.06
       JGX  |   4 |    4.3   -3.2    9.7     -10      3     18    -.23
       JPL  |   4 |     .4   -2.5    2.5     -13     25    -42     .41
       MIT  |   4 |    1.3   -5.9   13.2     -13     -1     -5    -.06
       NGS  |   4 |    7.1   -2.4    5.8     -23    -16     -9    -.18
       SIO  |   4 |    2.0    -.4     .7     -28     12    -10     .00

       COD  |   5 |     .2    -.6     .6       2      5     10    -.12
       ESA  |   5 |    -.1     .6     .6      -2     -4     -5    -.35
       GFZ  |   5 |     .4   -1.0    -.9     -20    -19     15     .14
       GRG  |   5 |    1.0    -.7    -.7       2      3     17    -.11
       JGX  |   5 |    3.4   -1.9   14.9     -22      7     20    -.11
       JPL  |   5 |    5.3   -3.4    7.2      14     49    -46     .56
       MIT  |   5 |    1.9   -8.2   14.9     -32      5     -7    -.10
       NGS  |   5 |    2.2   -3.4   10.2     -24      1      6    -.08
       SIO  |   5 |    4.9    2.3   -1.0      10    -16     -4     .05

       COD  |   6 |     .6    -.5     .5      -4      5     -1    -.14
       ESA  |   6 |     .8     .2     .6       5    -16     -5    -.47
       GFZ  |   6 |    -.0    -.8    -.6     -25    -16     15     .26
       GRG  |   6 |     .7    -.7    -.8       8     -1     23     .07
       JGX  |   6 |    5.4   -2.5   11.8      -1     -4     18    -.24
       JPL  |   6 |   10.6   -5.9    5.7     -38     57    -56     .37
       MIT  |   6 |    4.0   -2.8    8.5     -20     11     -5    -.03
       NGS  |   6 |    6.8   -3.5    4.2     -19     -8     -4    -.10
       SIO  |   6 |    8.3    1.0  -10.2      91    -40      3    -.00


 9. 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.

10. 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:
        https://files.igs.org/pub/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:
        https://files.igs.org/pub/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.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        https://files.igs.org/pub/station/general/igs14.atx
    
    Starting 28-Nov-2022, the absolute antenna model file has been updated to
    igs20.atx to be consistent with IGS20.
    See IGSMAIL #8238 and #8256 for more information
        https://files.igs.org/pub/station/general/igs20.atx
    
    The JPL solution did not use IGS20/igs20.atx until GPS Week TBA, which caused
    their orbit and clock residuals to be higher during that period than for the other
    centres; from GPS Week 2238 through TBA, the JPL solution is excluded from the
    weekly SINEX combination, as well as from orbit and clock combinations.
    
    Since swithing to IGS20/igs20.atx, SIO orbits suffered from high Y rotations
    with respect to the combined orbits, possibly impacting the alignment of the
    combined orbits with respect to the IGS20 frame. As a result, SIO orbits are
    excluded from the final combinations until the issue is fixed.
    
    Since switching to IGS20/igs20.atx, EMR paused their participation to the IGS
    combinations until they complete internal tests. They restarted submitting
    products from GPS week 2263. The EMR orbit and clock solutions are excluded
    from the final combinations until the IGS assessments are completed. The
    EMR solutions are, however, included for comparison statistics only.
    
    JGX started providing orbit and clock solutions from GPS week 2269. Their solutions
    are currently excluded from the final combinations until the IGS ACC assessments
    are completed. However, they are included for comparison statistics only.
    


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 1.2274.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2274.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 2.2274.[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 3.2274.[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 5.2274.0-6). 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 2274 summary.                       (Aug 06, 2023 - Aug 12, 2023)

Table 1.2274.a   GPS week: 2274   MJD: 60162.000-60168.000

         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  856|   -1     0     0     6   -10    26   .01    6    6 |    -845     142      6     92
        |    0     0     1    11    10    28   .01           |     101     109
esa  150|    0    -1     2     4     0     2  -.05    9    9 |   -1431     922      5     76
        |    0     0     0     8    12    20   .01           |     561     653
gfz  127|   -1     0     2    33     2     5   .11   68   10 |     -30     102      8     89
        |    0     0     1    11    15    23   .03           |     347     544
grg  122|    4     0    -1     5    15     9   .08    9    8 |    -175      98      8    128
        |    0     0     2    12     7     9   .01           |     239     320
igr  n/a|    0     0     0    -3     2    21   .02    4    4 |    2877    -259     10     80
        |    0     0     0     5     7    28   .01           |    1307    1120
jgx  n/a|    0     0     0    20    -8   -35  -.02   12   12 |    -145      98     52   1723
        |    0     0     1    14    13    38   .02           |     238     345
jpl  n/a|    0     0     3    13    -2    19   .18   24   24 |     793    -292     77    171
        |    0     1     2     9    14    17   .03           |    1380    1120
mit  359|    0     0    -5   -37   -23   -57  -.10    9    8 |    7870    -880    842  11602
        |    0     0     0    20    46    96   .01           |   14672    1888
ngs  288|    0     0     2   -11     3    10  -.04   10    8 |    -849     149    835   1890
        |    0     0     1    16    12    28   .02           |     193     275
sio  357|    0     0    -3   -28   -20    11  -.16   10    8 |     ---     ---    ---    ---
        |    0     0     1    17    15    27   .02           |     ---     ---


Table 1.2274.b   GPS week : 2274   MJD: 60162.000-60168.000   

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



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 2.2274.0   GPS week: 2274   Day: 0   MJD: 60162.000                            

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  862|   -2     0     0    29   -11     6   .01    7    7 |    -795      87      7     94
esa  150|    0     0     2     7    16     1  -.05    8    8 |   -1409     828      5     75
gfz  128|   -1     0     2    14    26   -10   .09    7    7 |    -132      44      9    112
grg  126|    3     0     0   -15    28    -1   .09    8    8 |    -151      23      8    135
igr  n/a|    0     0     1    -9    14     0   .03    4    4 |    4456    -383     10     81
jgx  n/a|    0     0     2    30     8   -66  -.05   13   13 |    -136      49     50   1751
jpl  n/a|    0     0     2    12    16     9   .18   24   24 |    2298    -276     76    166
mit  359|    0     1    -5   -22  -103    18  -.11    9    9 |   23789   -4621   5507  15861
ngs  297|    0     0     1   -23    24   -10  -.06    9    8 |    -801     101    780   1926
sio  363|    0     0    -2   -44   -12    34  -.16   10    9 |     ---     ---    ---    ---

Table 2.2274.1   GPS week: 2274   Day: 1   MJD: 60163.000                            

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  867|   -1     0    -2     1    -7   -18   .03    6    6 |    -766     115      6     97
esa  150|    0     0     1    15     3   -17  -.06    9    9 |   -1118     390      5     73
gfz  128|    0     0     3    47    -2     0   .09    9    9 |     119    -239      8     91
grg  124|    3    -1     1    -1    19     5   .07    8    8 |     -23    -229     10    143
igr  n/a|    0     0     0     4     9   -12   .01    4    4 |    4127    -998     10     86
jgx  n/a|    0     0     0    40     3   -90  -.02   14   14 |      22    -274     55   1727
jpl  n/a|    0     0     0    16     2     2   .20   24   24 |    2149    -913     76    179
mit  359|    0     0    -5   -64   -29    67  -.11    9    9 |   -3596    -810     93  13035
ngs  291|   -1     1     2   -21     0   -37  -.01   10    9 |    -794     152    760   1865
sio  362|   -1     1    -2   -24   -32    -9  -.16   10    8 |     ---     ---    ---    ---

Table 2.2274.2   GPS week: 2274   Day: 2   MJD: 60164.000                            

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  865|   -1     0    -2    10    -1    12   .00    7    6 |    -881     177      6     93
esa  150|    0     0     2    -7    -5   -11  -.04    8    8 |   -1467    1443      4     67
gfz  129|   -1     0     3    36   -13    -5   .15   11    9 |     148     146      8     85
grg  123|    4     0     0     8     9     9   .08    9    8 |     -81      42      9    124
igr  n/a|    0     0     0    -2    -4    10   .02    4    3 |    3671   -1209      9     74
jgx  n/a|    0     0     0    25    -7   -40  -.04   14   14 |     -23     -38     62   1718
jpl  n/a|   -1     0     1    18   -16     8   .18   24   24 |    1607    -755     74    179
mit  359|    0     0    -5    -9   -11     0  -.11    9    8 |   -2501    -560     61   8425
ngs  293|    0     0     0   -35     6     3  -.04    9    8 |    -878     171    650   1709
sio  360|    0     0    -2   -52   -12   -35  -.15   10   10 |     ---     ---    ---    ---

Table 2.2274.3   GPS week: 2274   Day: 3   MJD: 60165.000                            

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  861|   -1     0     0    -7    -4    31   .02    6    5 |    -819     158      6     90
esa  150|   -1    -1     3    14    -1   -21  -.03    9    9 |   -1319     873      5     70
gfz  129|   -2     0     3    44    -4   -22   .08   12   13 |      12     384     10     89
grg  124|    5     0     0    24    19     7   .07    8    8 |     -31     -74      9    147
igr  n/a|    0     0     0     2     2     3   .01    4    4 |    2562   -1132     11     89
jgx  n/a|    0     0    -3    16    -6   -54  -.02   13   13 |      11    -108     48   1675
jpl  n/a|    0     0     3    20     7    33   .18   24   24 |     943   -1400     76    170
mit  359|    0     0    -5   -64   -23   -22  -.09    9    8 |   28110    -902     64  16094
ngs  297|   -1     0     0     5     6     9  -.06   10    8 |    -811     149    803   1670
sio  363|    0     0    -6   -16    -9    -1  -.18    9    8 |     ---     ---    ---    ---

Table 2.2274.4   GPS week: 2274   Day: 4   MJD: 60166.000                            

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  853|   -1     1     0     8    -8    38  -.01    6    5 |    -743      36      5     87
esa  150|    0    -2     3    -3     0    26  -.04    8    8 |   -1559     725      5     85
gfz  129|   -1     0     0    27    20    34   .15   10   11 |     418    -500      8     84
grg  119|    4     0    -2     6    13     0   .08    9    8 |    -300     146      7    126
igr  n/a|    0     0     0    -9     0    37   .02    3    3 |    1348     552      9     75
jgx  n/a|    0     0    -2    11   -27   -17  -.02   12   12 |    -164      18     48   1705
jpl  n/a|   -1    -2     6     5   -14    51   .13   23   24 |    -765     274     78    151
mit  359|    0     0    -4   -30   -19  -153  -.11    9    8 |   16427     526     51  11882
ngs  286|   -1     0     2   -15    -8    27  -.06    9    8 |    -625    -184    920   1903
sio  356|   -1     0    -3   -23     0    37  -.15    9    7 |     ---     ---    ---    ---

Table 2.2274.5   GPS week: 2274   Day: 5   MJD: 60167.000                            

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  845|   -1     0     0     2    -5    57   .00    7    6 |   -1044     364      5     89
esa  150|    0     0     2     0    10    25  -.06    9    9 |   -2502    2073      6     87
gfz  121|   -2     1     2    36     8    41   .11   10   11 |    -706    1144      9     84
grg  120|    4     0    -4     5    14    23   .11   10    9 |    -661     777      9    122
igr  n/a|    0     0     0    -6    -2    63   .04    4    4 |    1107    1881     12     82
jgx  n/a|    0     0     0    19    -3     9  -.00   11   11 |    -663     797     48   1738
jpl  n/a|    0     0     4    24     3    21   .20   25   26 |   -1248    1941     80    186
mit  359|    0     0    -5   -36   -30  -185  -.10    9    8 |    1666    1405     67   7598
ngs  279|    0     0     4     0   -12    40  -.05   11    8 |   -1252     702   1026   2135
sio  347|   -1     0    -3    -1   -31    22  -.13   10    8 |     ---     ---    ---    ---

Table 2.2274.6   GPS week: 2274   Day: 6   MJD: 60168.000                            

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  843|   -1     0     0    -2   -34    57   .00    6    6 |    -868      63      7     94
esa  150|    0    -1     4     7   -21    12  -.05    9    9 |    -645     128      7     78
gfz  128|   -2     0     0    29   -14     3   .12  413    9 |     -70    -261      9     81
grg  121|    4     0    -3    10     4    22   .07    9    8 |      22       3      7    100
igr  n/a|    0     0     1    -2    -3    47   .02    4    4 |    2874    -524     12     76
jgx  n/a|    0     0     0    -3   -25    10  -.01   11   11 |     -63     242     53   1749
jpl  n/a|    0    -2     6    -3   -20     9   .20   25   25 |     570    -919     79    168
mit  359|    0     0    -3   -36    54  -123  -.09    8    7 |   -8801   -1199     55   8319
ngs  279|    0     0     3     8     6    39  -.03   10    8 |    -788     -43    909   2022
sio  352|    0     1    -3   -39   -42    32  -.17    9    7 |     ---     ---    ---    ---

       
       
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 3.2274.0   GPS week: 2274   Day: 0   MJD: 60162.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    8    7    7    4  ---   11   10    8  ---    3 |    25   25  318   25   23  ---   28   25   24  ---    23
   2  |    6    6   10   10    3   10   11   10   12    9    4 |    26   24   30   27   25   27   28   29   26   28    26
   3  |    8   10    6   12    4   10    9    7    9    8    4 |    25   25   23   25   22   21   26   23   19   21    22
   4E |   10   19    9   10    3   12   52   12   12   15    5 |    34   42   36   37   31   34   38   35   32   32    34
   5  |    5    5    4    5    4    9    9    5    7    7    2 |    31   27   31   31   29   32   35   28   31   27    29
   6  |    7    9   10    6    3    7   10    7   10    8    3 |    25   26   31   27   25   27   29   24   23   22    25
   7  |    7    6    6   10    3   11    8    9    6    8    3 |    64   62   61   59   61   61   65   60   61   57    61
   8  |    8    8    6   10    7    9   13   10    9   11    3 |    26   25   24   21   24   22   24   25   23   24    23
   9E |    8    6    6   10    3   15    8    8    9   12    3 |    46   48   51   49   47   47   24   52   50   49    48
  10  |    5    9    7    8    3   12    9    8    7   12    3 |    27   27   29   23   25   28   28   28   21   26    25
  11  |    8   11    9    6    3   12   57    8   10    8    4 |    23   25   28   26   24   25   30   24   24   24    24
  12  |    6    4    5    7    3   22    8    7    7   12    2 |    44   41   42   40   42   51   46   45   41   44    42
  13E |    7    7    7    7    4   13    9    9   10   10    3 |    57   61   62   61   59   60   62   62   60   60    60
  14  |    7    5    6    7    4   12   52    8    6    9    3 |    30   32   35   34   32   37   41   34   33   35    32
  15E |   10    5    5    9    4   12   14   12   12   15    4 |    56   59   59   59   58   57   60   62   59   60    58
  16  |    6    4    8    7    3   23    8   12    6   12    3 |    17   17   21   18   17   19   17   22   19   20    18
  17E |   10    7   12    8    5   10   11    9   11    8    4 |    26   28   34   26   28   27   26   25   27   23    26
  18  |    6    9    6    8    4   12   53    9   11   10    3 |    32   32   33   35   32   33   39   32   33   29    32
  19E |    6    7    8    7    3   18   10    9   12    7    3 |    37   34   36   36   36   38   37   36   39   35    35
  20  |    9    5    5    5    4   11   11    8   11   12    3 |    20   18   20   20   19   20   24   23   20   21    19
  21  |    7    7    9   10    3    9   10    9   13    8    4 |    25   22   27   25   23   22   26   27   23   26    24
 X22E |   12    7   13  ---    5  ---   10    8   14  ---    5 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  23  |    6   10    6    8    3   11   57    6    8    8    3 |    29   33   31   33   31   30   51   30   29   30    30
  24  |    6    9    6    7    4    9   10    8    7   10    3 |    25   25   22   25   23   24   29   23   23   22    23
  25  |    6    8    6    7    4   11   10    7    8   10    3 |    17   19   20   19   19   18   25   17   15   16    17
  26  |    7    6    6    7    3   11    9    8    7   10    3 |    20   21   19   20   20   23   27   19   22   20    19
  27E |    7    6    9    9    3   10   11    9    8   11    3 |    60   63   62   64   61   59   61   61   62   59    62
 X28  |    8    5  ---    8    3   12   51    7    8    9    3 |    53   54  ---   52   53   19   61   55   54   24    53
  29E |    5    7    5    5    3   21    9   10    9   10    3 |    55   54   55   55   54   58   54   52   55   55    54
  30  |    7    8    6    7    2    7    8    9    7    9    3 |    23   21   20   19   21   19   27   22   21   18    20
  31  |    7    5    7    8    2   11   10   10   11   10    3 |    61   59   58   57   58   58   61   55   55   54    57
  32E |    9    6    7    5    4   14   10    9    8   12    3 |    47   49   53   52   48   45   26   53   54   49    51
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    8    7    8    4   13   24    9    9   10      |T   35   35   45   35   34   34   37   35   34   33    34
 WRMS |    7    8    7    8    4   13   24    9    8    9      |NE  30   30   43   30   29   29   34   30   29   28    29
 MEDI |    7    7    6    7    3   11   10    9    9   10      |MD  29   28   31   31   29   28   29   29   29   27    29

Table 3.2274.1   GPS week: 2274   Day: 1   MJD: 60163.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    9   18    9    4  ---   10    8    9  ---    4 |    20   21  303   19   19  ---   23   19   16  ---    18
   2  |    7    8   14   11    3   10   11    9   10   13    4 |    21   18   27   19   19   19   20   19   23   23    19
   3  |    6   10    7   10    4   11   13    9   11    9    4 |    21   21   20   22   19   19   24   17   20   17    19
   4E |   11   22    7   10    4   14   49   14   13   16    6 |    24   27   24   26   20   24   26   30   23   25    24
   5  |    4    6    6    5    4    9    9    6   11    5    2 |    22   21   21   22   21   26   26   19   23   19    21
   6  |    6    9    8    6    4    9    9    7   12    9    3 |    19   21   22   21   19   18   22   18   20   16    19
   7  |    4    7    8    7    4   12    6   11    8    5    3 |    39   38   40   35   37   38   39   36   37   34    37
   8  |    5    9   13   14    5   14   12   11    9   11    4 |    22   23   24   21   21   21   22   20   23   22    19
   9E |    7    7    9    9    3   14    9    9    9    7    3 |    33   36   38   36   33   33   24   40   33   36    35
  10  |    5   10    8    7    4   13   10    8    8    9    3 |    24   25   26   22   24   27   26   21   23   23    22
  11  |    7    9    7    7    4   12   58    9   12    5    3 |    13   16   19   19   14   18   24   16   16   16    15
  12  |    6    7    6    7    4   20    9    8    8   10    3 |    22   21   24   22   23   26   27   23   23   23    22
  13E |    8    6    9    7    3   11   11    9   11   11    3 |    38   41   43   42   41   41   41   43   40   43    41
  14  |    6    5   10    6    3   11   53    8    7    6    3 |    17   19   24   21   18   22   21   20   19   19    18
  15E |    8    6   15    9    5   12   11   10   10   10    4 |    39   37   35   39   38   38   39   41   39   38    38
  16  |    5    5    7    7    4   24   11   13    9   15    3 |    16   16   18   16   16   18   15   20   20   23    16
  17E |    5    7    9    8    3   12    8    8   13    5    3 |    31   31   33   31   31   35   32   29   32   29    30
  18  |    7   10    9    8    6   14   54    8   13   11    4 |    17   19   21   22   17   23   23   18   19   20    18
  19E |    8    7   11    8    3   18   11   10   14    9    4 |    28   25   28   24   25   27   25   23   26   23    24
  20  |    4    6    6    5    5   10   11    8   10    8    3 |    16   17   16   16   14   19   21   15   17   14    15
  21  |    5    8   11   10    4   11   11    9    9   17    4 |    19   17   21   17   16   17   19   18   19   23    16
 X22E |   10  ---    9  ---   13  ---   71   13   16  ---    7 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
  23  |    6   10    7    8    4   12   57    7    9    7    3 |    21   21   24   23   20   24   31   22   20   23    21
  24  |    6   10    7    6    3   10   10    8    7    7    3 |    20   20   15   18   17   17   23   18   17   14    17
  25  |    8    9    4    5    3   13   10    7   10    7    3 |    15   19   20   20   17   18   24   14   15   14    16
  26  |    5    6    8    6    3   12    9    9    7    8    3 |    19   19   19   20   20   20   25   17   19   17    18
  27E |    7    7    8   11    4   15   15   10   10    7    4 |    58   57   57   58   58   65   61   61   60   59    58
 X28  |    5    6  ---    9    4   12   50    7   13    9    4 |    43   43  ---   44   42   19   46   45   44   23    43
  29E |    6    8    7    5    5   22   10    9   10    8    3 |    40   39   39   42   38   43   39   36   41   40    38
  30  |    4    9   10    6    2    8    7   11   10    8    3 |    20   17   19   16   17   18   23   18   17   14    16
  31  |    5    6    4    7    2   14    9   10    9    9    3 |    46   43   44   42   44   44   47   44   43   42    43
  32E |    6    8    6    6    3   14    8   11   10   11    3 |    33   34   37   35   32   32   24   38   32   33    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6    9    9    8    4   14   24    9   10   10      |T   26   26   36   26   25   26   28   26   26   25    25
 WRMS |    6    9    9    8    4   14   24    9    9    8      |NE  22   22   36   22   21   22   25   21   22   20    21
 MEDI |    6    8    8    7    4   12   11    9   10    9      |MD  22   21   24   22   20   23   24   20   23   23    21

Table 3.2274.2   GPS week: 2274   Day: 2   MJD: 60164.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    8   11    7    3  ---    9    9    9  ---    3 |    33   35  284   33   34  ---   35   32   32  ---    33
   2  |    6    6   11    9    4   13   11   11   10   12    4 |    31   31   34   31   30   36   32   33   32   26    31
   3  |    6   10   10    8    3   12    9    8    9    9    3 |    31   32   31   34   30   31   33   30   29   26    30
   4E |   12   21    9   13    4   14   52   14   13   16    6 |    44   48   44   43   41   46   46   44   41   40    43
   5  |    5    5    5    7    3    9   11    6    6    9    2 |    33   32   36   36   34   37   36   32   34   32    33
   6  |    5    8    9    7    3   10    8    7    9   11    3 |    38   39   40   40   37   39   40   38   35   35    38
   7  |    5    5    9    9    3   13    7    8    5   10    3 |    51   51   53   49   49   50   52   47   49   46    49
   8  |    5    8    9   15    4   11   12   10   10    9    4 |    33   34   33   34   33   33   32   31   34   27    32
   9E |    8    8   23   11    3   17   10   11    8   11    5 |    56   55   56   54   54   56   34   54   54   50    54
  10  |    4    9    8    7    3   13   10    7    9    9    3 |    33   32   36   31   31   35   33   34   31   32    32
  11  |    5    9    7    7    4   12   60    7   10   12    3 |    33   37   37   37   35   39   41   38   36   34    35
  12  |    6    5    6    8    3   18    7    7    8   10    3 |    45   44   47   44   45   48   45   47   45   42    45
  13E |   16    8    8    9    4   12   10   10    7   11    4 |    62   70   68   71   68   70   71   69   65   66    67
  14  |    7    4    8    7    5   11   54    8    9   11    3 |    34   34   36   36   33   38   39   35   33   32    34
  15E |    8    8   12   11    5   11   10   14    9   14    4 |    57   58   56   61   57   59   58   66   55   61    58
  16  |    5    6    6    8    3   27    9    9   10   10    3 |    29   29   32   29   29   32   29   29   32   24    29
  17E |    6    7   12    6    4   14   11    8    9    9    3 |    35   34   38   37   34   36   35   35   34   33    34
  18  |    7    9    8   10    4   16   52    8   10    8    4 |    33   35   37   35   33   35   41   37   34   33    34
  19E |    6    9    8    6    4   18   11    8   10   10    3 |    31   31   31   31   30   32   32   29   29   25    30
  20  |    6    5    6    6    3   12   12    7   10    9    3 |    31   31   33   31   31   34   33   30   32   28    30
  21  |    7    7   10    8    4   13   11    7   10   11    3 |    33   32   35   32   33   36   34   32   33   26    32
  23  |    6   10    9    8    3   14   53    6    9    6    3 |    27   28   30   30   27   29   37   30   27   27    28
  24  |    5    9    6    8    2    9   11    7   11    9    3 |    35   35   34   35   34   35   38   33   34   30    34
  25  |    5    9    5    7    3   10   10   10   10    9    3 |    30   30   32   33   31   31   35   33   27   28    30
  26  |    6    8    6    7    3   15    9    9   10    9    3 |    28   25   28   28   27   30   33   27   32   22    27
  27  |    9    6    7    9    4   11   12    9   11   10    4 |    91   90   89   89   90   87   88   89   92   86    90
 X28  |    6    6  ---    8    5   14   49    8    8    9    3 |    37   39  ---   41   38   27   46   41   42   28    39
  29E |    4    7    9    5    4   24   11    9    8    8    3 |    25   23   31   27   25   25   27   26   28   23    25
  30  |    5    9    8    9    3    8    9    8    7   11    3 |    37   36   37   35   35   34   38   35   34   33    35
  31  |    6    7    7    9    4   12    9   10    9    8    3 |    47   45   44   46   46   48   49   44   48   41    45
  32E |   11    8   29    9    4   17    9   12   11   17    6 |    52   51   61   51   52   50   33   54   54   54    53
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    8   11    9    4   14   24    9    9   10      |T   39   39   49   40   38   40   40   39   39   36    39
 WRMS |    6    8    9    8    3   14   24    8    8   10      |NE  34   34   48   35   34   36   37   34   34   31    34
 MEDI |    6    8    8    8    4   13   11    8    9   10      |MD  33   35   36   35   34   36   36   35   34   32    34

Table 3.2274.3   GPS week: 2274   Day: 3   MJD: 60165.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    8   16    8    5  ---    9    8   11  ---    4 |    23   25  285   24   23  ---   26   22   22  ---    22
   2  |    4    5   15   11    4   11   10   10   13   10    4 |    24   24   30   25   23   26   24   24   24   23    23
   3  |    7   10    7    8    2    9    8    8   10    9    3 |    21   24   22   23   20   21   24   18   19   17    20
   4E |   12   20    8   12    5   15   49   15   14   14    6 |    21   32   26   23   20   23   27   24   22   21    22
   5  |    4    4    6    6    5   10   11    7    8    8    2 |    27   26   29   29   28   27   31   23   28   24    26
   6  |    5   10    8    7    4   10    9    5    9    6    3 |    25   26   28   26   24   23   28   22   22   20    24
   7  |    6    9    8    8    4   11    9    8    6    8    3 |    50   50   50   46   48   50   50   46   47   48    48
   8  |    4    9    8   12    4   12   11   11   10    7    4 |    23   26   25   22   24   24   25   22   24   21    22
   9E |    7    9   28    8    3   15    9   10   12   10    6 |    36   39   41   35   36   36   33   34   35   32    35
  10  |    4    9    8    7    6   11   11    9    7    5    3 |    20   23   26   22   21   23   24   19   20   17    20
  11  |    6   10    8    7    4   11   57    7    7    6    3 |    15   18   20   21   17   19   26   18   15   17    17
  12  |    5    5    6    7    3   18   11    8    6    7    3 |    37   34   32   33   33   39   37   33   33   33    33
  13E |    8    6   10    7    4   12   13    8   11    8    3 |    31   33   38   35   32   33   31   34   34   31    33
  14  |    4    6    6    6    4   10   51    7    7    6    2 |    20   21   22   22   20   24   28   20   22   22    20
  15E |    6    8   11   11    3   13   12    7   12    8    4 |    35   33   31   35   34   36   35   35   36   34    34
  16  |    5    5    8    7    3   23    9    9   11   13    3 |    15   18   21   17   18   21   18   19   23   21    17
  17E |    6    8   11    7    3   11   11    8   10   12    3 |    24   21   27   25   22   23   23   23   25   26    23
  18  |    7   10    9    9    4   11   53    8    8    8    3 |    14   19   20   20   17   19   29   19   15   20    16
  19E |    6    9    7    7    4   16   11    7   10   13    3 |    31   30   29   31   30   30   28   27   32   29    29
  20  |    6    5    8    7    4   11   11   12   10    6    3 |    22   20   24   20   23   22   23   20   24   19    20
  21  |    6    6   11   10    4   10   12    9   14   11    4 |    26   24   29   24   24   25   27   23   24   23    24
  23  |    5   10    7    8    4   11   54    6   10    5    3 |    19   25   25   25   22   24   42   22   22   23    22
  24  |    4   10    7    7    3    8   11    8    7    6    3 |    27   27   23   25   24   25   29   23   24   22    24
  25  |    6    9    6    7    3   10   13    6   10    6    3 |    16   20   18   18   17   17   25   16   19   17    16
  26  |    4    6    6    6    3   14   10    7    8    9    3 |    20   21   23   19   20   23   27   20   21   22    20
  27  |    6    7    8   10    4   13   13   10    9    5    3 |    37   40   39   39   38   36   39   38   41   37    38
 X28  |    6    8  ---   10    5   11   48    7   10    7    4 |    20   24  ---   24   21   25   39   24   22   20    22
  29E |    7    7    7    8    4   24   11   10   10   14    3 |    23   22   26   26   24   25   21   24   28   29    23
  30  |    4    9    6    6    4    7    9    8    5    8    3 |    25   22   23   23   22   23   25   22   23   22    22
  31  |    5    7    6    8    3   13   11   11   10    6    3 |    43   43   44   45   44   47   50   41   40   44    42
  32E |   12   11   40   14    4   15    8   10   14   10    8 |    25   28   50   30   27   30   33   29   31   27    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6    9   12    8    4   13   24    9   10    9      |T   25   27   37   26   25   27   29   25   26   25    25
 WRMS |    5    9   13    8    4   13   24    8    8    8      |NE  24   25   39   25   24   26   29   23   24   23    23
 MEDI |    6    8    8    8    4   11   11    8   10    8      |MD  24   25   26   25   23   24   28   23   24   22    23

Table 3.2274.4   GPS week: 2274   Day: 4   MJD: 60166.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    7    7    8    3  ---    9    8   10  ---    3 |    21   22  281   20   19  ---   24   20   17  ---    19
   2  |    5    4   12   10    3   10   12    9   12   11    4 |    18   17   23   19   17   19   21   20   19   16    17
   3  |    6    9    6    9    3    9    8    8   10    9    3 |    18   20   19   19   17   16   20   16   16   13    16
   4E |   10   24    9   13    4   13   52   13   11   13    6 |    25   30   23   23   22   24   29   28   22   24    24
   5  |    5    5    6    6    4   11   11   10   10    6    3 |    22   21   25   23   22   21   27   20   26   21    22
   6  |    5    8    6    7    3    9    9    6    8    7    3 |    25   24   24   24   22   24   26   24   23   20    23
   7  |    5    7   10    8    3   12    8    8    6    6    3 |    42   40   43   40   41   42   42   40   40   39    40
   8  |    3    7   10   13    3    9   13    9   10    6    4 |    21   22   21   20   20   19   22   20   20   17    19
   9E |    9    7   26   11    5   14   11   12   11   13    6 |    47   48   56   47   49   47   34   52   50   48    48
  10  |    5    9   11    9    3   10   10    8    6    4    3 |    17   19   20   16   16   18   20   17   15   14    16
  11  |    6    9    7    8    3    9   58    9    9    8    3 |    16   19   22   23   17   20   24   22   15   19    18
  12  |    4    4    5    7    3   16    9    7    6    7    2 |    32   31   37   33   32   36   32   34   32   31    32
  13E |    6    5    9    5    4   13   11    9    8    7    3 |    38   39   41   41   37   38   39   43   39   36    39
  14  |    4    4   10    8    3    8   50    8   11    6    3 |    22   22   29   25   23   26   32   28   22   23    24
  15E |    6    7    7    5    3   11   13    7    7    9    3 |    43   43   45   46   43   42   44   48   42   41    44
  16  |    4    6    7    7    3   21    9    9    7   13    3 |    15   15   15   13   14   16   14   17   16   18    14
  17E |    3    8   10    8    3   12   10    7   10    5    3 |    21   19   21   23   21   21   20   21   23   18    20
  18  |    5    9    7    9    3   12   52    9    9    9    3 |    17   20   21   23   20   20   28   23   21   22    19
  19E |    3    8    9    9    4   18   11    9    8    6    3 |    23   24   26   27   25   26   24   27   28   25    24
  20  |    6    4    6    5    3   10   11    7   11    8    3 |    16   17   20   18   17   18   20   18   18   15    16
  21  |    6    5   10    7    3    8   11    8    9   11    3 |    20   18   23   19   18   19   22   20   19   17    18
  23  |    5   11   10    9    3   11   52    6    8    5    3 |    15   21   22   22   18   17   33   19   15   18    17
  24  |    6    9    8    8    2    8   10    7    9    6    3 |    25   23   22   23   23   21   27   23   23   17    23
  25  |    5    8    6    7    3   10   11    7    6    6    3 |    16   18   19   18   17   13   23   19   15   12    16
  26  |    3    6    8    8    3   12    9    8    7    9    3 |    14   14   17   16   15   17   23   13   15   12    14
  27  |    3    7   11   13    3   10   13   10    9    7    4 |    57   56   55   54   56   55   55   58   55   57    55
 X28  |    4    7  ---    9    3  ---   51    7    8    7    3 |    36   39  ---   37   36  ---   57   37   37   25    36
  29E |    9    9    7   10    4   20   10   10   11   10    4 |    31   26   32   30   27   29   26   27   32   29    29
  30  |    3    7    9    6    3    6    8    8    7   12    3 |    21   21   25   21   21   20   24   22   20   22    20
  31  |    6    5    8    9    3   10   10   11    9    8    3 |    41   41   43   41   40   43   42   37   44   39    41
  32E |    9   10   20    7    3   12    7   11   13   15    5 |    29   31   34   33   30   30   26   36   29   32    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6    8   10    9    3   12   23    9    9    9      |T   25   26   36   27   25   26   29   27   26   24    25
 WRMS |    5    8   11    8    3   12   24    8    8    7      |NE  22   22   36   23   22   22   27   23   22   20    21
 MEDI |    5    7    8    8    3   11   11    8    9    7      |MD  22   22   23   23   22   21   26   23   22   21    22

Table 3.2274.5   GPS week: 2274   Day: 5   MJD: 60167.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    6    9  ---    8    3  ---   13    6    9  ---    3 |    18   20  ---   19   18  ---   24   14   17  ---    16
   2  |    5    6   12   11    4   11   13   10   14   11    4 |    19   18   24   19   19   21   22   17   20   19    17
   3  |    4   10    7    9    3   11    9    9    7   11    3 |    18   21   20   19   17   18   22   14   16   14    17
   4E |   11   25   13   15    4    8   53   17   12   18    7 |    24   31   21   25   22   23   26   29   25   23    23
   5  |    5    4    7    7    3    7    9    7    9    5    3 |    24   21   25   24   23   24   28   20   26   20    22
   6  |    6    8    8    8    3    9   10    5   11    6    3 |    19   21   21   22   19   18   23   17   20   15    19
   7  |    5    6    8    9    3   11    7    9    5    7    3 |    33   32   35   33   33   34   35   29   31   32    32
   8  |    4    8    9   14    5    8   16   11   12    6    4 |    20   22   21   20   21   20   23   17   19   17    18
   9E |    9    8   11   10    5    8  ---   10   20   14    5 |    38   42   42   41   40   40  ---   41   44   42    40
  10  |    6    9    9    7    3   12    9    8    7    7    3 |    17   22   20   18   18   20   22   14   19   15    17
  11  |    8   11   10    8    5    8   59    7   10    6    4 |    13   16   21   21   14   16   20   17   14   16    15
  12  |    6    5    5    8    3   14    9    9    8    9    3 |    27   24   27   24   26   27   28   28   27   20    25
  13E |    6    6   10    6    4   11   12   10    9    8    3 |    35   37   39   36   36   35   38   40   40   38    37
  14  |    5    6   10    8    3    7   53    8   12    9    3 |    19   20   26   21   20   23   20   19   21   20    19
  15E |    7    8   13   11    5    8   14    7   14    9    4 |    44   43   44   42   44   43   45   47   44   42    44
  16  |    5    6    9    8    4   20    8    9    5   11    3 |    14   14   16   13   13   16   13   13   13   14    13
  17E |    8    8    8    9    5   11    9    8   13    9    4 |    32   27   27   29   27   28   29   25   29   28    27
  18  |    6   10    8    9    5   11   53    8    9    7    3 |    19   18   21   24   18   23   23   18   15   18    18
  19E |    8    9   10    8    5   16   10    9   16    8    4 |    37   35   36   37   38   37   35   33   41   33    35
  20  |    6    5    8    5    4    8   10    7    8    8    3 |    17   16   20   18   18   17   21   14   16   15    16
  21  |    5    9    9   24    7    9   16    8   16   19    5 |    18   18   21   34   19   19   23   15   19   25    18
  23  |    6   10    7    7    3    9   53    6    9    7    3 |    20   22   24   24   21   22   31   20   17   22    20
  24  |    6    9    6    7    2    7    8    8   12    9    3 |    21   21   21   20   20   17   25   18   18   15    19
  25  |    5    9    6    8    4    9   10    6    8    7    3 |    15   18   16   16   17   13   24   14   17   12    15
  26  |    5    7    6    9    3    8    8    8    5    9    3 |    17   18   19   17   18   18   23   14   17   15    16
  27  |    5    6    7   10    4    9   14   10    9    6    3 |    45   42   44   46   42   44   43   47   39   42    44
 X28  |    8    8  ---   10    4  ---  ---   12   12  ---    5 |    38   46  ---   46   43  ---  ---   49   45  ---    44
  29E |    8    8    9   12    4   18   10    8   10    8    4 |    41   40   38   43   41   42   38   33   43   39    39
  30  |    4    8    6    7    2    6    8    8    6    7    3 |    18   20   20   18   18   18   23   16   18   16    17
  31  |    7    7    6   10    2    9   10    9    7   10    3 |    35   35   35   36   34   36   37   32   33   33    34
  32E |   12   14   29    6    6   11  ---    8   20   14    7 |    34   36   46   34   34   31  ---   41   42   37    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    9   10   10    4   11   25    9   11   10      |T   25   26   27   27   25   25   27   24   25   24    24
 WRMS |    6    9   11    9    4   11   26    8    8    8      |NE  20   21   22   23   21   21   24   19   20   18    20
 MEDI |    6    8    8    8    4    9   10    8    9    8      |MD  20   22   24   24   21   23   24   19   20   20    19

Table 3.2274.6   GPS week: 2274   Day: 6   MJD: 60168.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    5    8 2266    7    4  ---   10    6    8  ---    3 |    23   27 9999   24   24  ---   26   22   22  ---    23
   2  |    5    6   12   12    3   11   12    7   10    9    4 |    23   22   26   25   21   25   26   23   24   21    22
   3  |    5   10    6    8    3   11   11    7   10   13    3 |    21   24   20   22   20   20   24   18   17   20    19
   4E |   10   24   10   13    4   11   53   12   16   16    6 |    39   48   41   42   39   41   43   43   39   41    41
   5  |    5    4    6    8    4    7   10    6    6    7    2 |    28   25   29   28   26   27   32   24   28   25    26
   6  |    7    8    7    7    4    9   11    7    8    7    3 |    27   29   31   29   26   26   31   29   27   25    28
   7  |    5    6   10    9    4   10   11    8    7    6    3 |    56   56   58   56   56   56   59   52   55   56    55
   8  |    4    7    8   14    4    7   14    7   10    8    4 |    21   21   22   24   20   20   22   18   19   17    19
   9E |    5   10    8   12    5   14  ---   12   12   12    4 |    61   61   66   60   60   61  ---   67   59   64    62
  10  |    8    9    8    7    4    8   10    7    8    6    3 |    23   23   22   19   19   20   25   19   19   18    20
  11  |    7    9    8    8    3    9   57    7    9   11    3 |    17   23   24   25   20   21   30   25   21   23    21
  12  |    5    5    5    8    3   16    8    8   10   10    3 |    45   42   45   41   41   48   46   44   40   39    42
  13E |    4    7    8    6    4    9   10    8    5   12    3 |    57   59   60   59   58   57   58   61   61   61    59
  14  |    5    5    6    7    3    8   50    5    8    6    2 |    24   26   28   27   26   28   39   26   28   25    26
  15E |    7    9    8    6    6    8   12    7   11   12    3 |    69   68   69   70   69   67   70   70   70   72    69
  16  |    5    5    7    7    4   20    7    9    8    9    3 |    13   14   17   12   13   13   16   15   17   16    13
  17  |    6    8    7   10    7   12   12   10   10    9    3 |    55   55   56   55   54   54   55   57   59   49    55
  18  |    4   10    7   10    4   11   55    6   10    7    3 |    24   25   27   28   23   26   36   25   24   25    24
  19E |    5    9    8    6    5   16   14    7   10    9    3 |    28   26   29   29   27   27   26   26   28   27    27
  20  |    6    5    7    6    4    7   12    6    7    9    2 |    18   18   22   18   18   16   24   18   20   17    18
  21  |    5    8   10   12    4    8   11    6    9   10    3 |    25   24   28   29   23   24   27   22   24   22    24
  23  |    6   10    9    6    3    9   53    6   11    8    3 |    28   32   31   31   29   27   49   28   25   31    29
  24  |    5   10    7    7    3    8    9    6    9    9    3 |    29   28   28   28   27   25   33   29   25   25    27
  25  |    6    9    5    6    3    6   11    5    8    6    3 |    16   19   17   17   17   13   25   14   14   13    15
  26  |    5    7    5    8    4    8   10    8    6    7    3 |    15   18   18   17   16   16   25   15   18   18    16
  27  |    5    7    8   12    4    6   14    6    8    7    3 |    52   50   51   51   51   49   52   52   50   50    50
 X28  |   11    8  ---    9    5  ---   56    6   15  ---    5 |    58   60  ---   59   58  ---   62   61   60  ---    59
  29E |    7    8   15   11    5   19   10    8   10    4    4 |    46   44   44   47   43   46   43   40   47   45    44
  30  |    4    8    9    8    3    6    9    5    7    6    3 |    22   22   26   22   22   21   27   22   20   23    21
  31  |    5    6    6   10    3    9    9    8    9   10    3 |    57   56   57   58   56   56   58   56   54   56    56
  32E |    7    9   17   10    3    9  ---   14   22   12    6 |    53   56   62   55   54   51  ---   55   57   53    55
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    6    9  413    9    4   11   25    8   10    9      |T   34   35   36   35   34   33   37   34   34   33    34
 WRMS |    6    9    9    8    4   11   25    7    8    7      |NE  27   28   28   29   27   26   33   27   27   25    27
 MEDI |    5    8    8    8    4    9   11    7    9    9      |MD  28   27   29   29   26   27   32   26   27   25    27



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components. See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.2274   GPS week: 2274   MJD: 60162.0-60168.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3000 |U    9     8    32 |U    7     8    36 |U    9    12    30 |
esa | esa 2989 |    12    11    32 |U    9    12    44 |U   12    17    36 |
gfz | gfz 2891 |U   12     9    33 |U    7    10    37 |     9     9    30 |
grg | grg 2974 |U    9    10    36 |U    8    12    44 |    10    10    32 |
igr | igr 2999 |     8     8    29 |     7    10    36 |     9    11    29 |
igs | igs 2999 |     8     8    30 |     7    10    35 |     8    10    27 |
jgx | jgx 2838 |U    9    10    34 |U    8    11    36 |    10    11    30 |
jpl | jpl 2934 |    14    13    35 |    11    20    55 |    13    16    36 |
mit | mit 3003 |U   14    16    48 |U  126   161   570 |U  129   108   104 |



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 5.2274.0   GPS week: 2274   Day: 0   MJD: 60162.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     9    32 |     7     7    31 |    11    12    28 |
esa | esa 3072 |    12    10    34 |     9    16    47 |    12    17    30 |
gfz | gfz 2976 |     8     9    33 |     9    14    46 |    10    11    29 |
grg | grg 2975 |     9     8    36 |    11    17    60 |    10     9    34 |
igr | igr 3072 |     8     7    29 |     9    14    41 |    10    11    26 |
igs | igs 3072 |     8     7    30 |     9    15    42 |     9    10    27 |
jgx | jgx 2880 |     9     8    33 |     9    17    48 |     7     9    28 |
jpl | jpl 3072 |    15    10    36 |    13    22    61 |    13    15    33 |
mit | mit 3072 |    16    31   112 |   819  1061  3726 |   497   401   462 |

Table 5.2274.1   GPS week: 2274   Day: 1   MJD: 60163.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |     8     7    34 |     7     7    36 |    10    10    29 |
esa | esa 2976 |    11     8    29 |     8     9    43 |    15    20    34 |
gfz | gfz 2963 |     6     7    33 |     6     7    36 |    10     8    31 |
grg | grg 2976 |     8     8    38 |     7     9    43 |    12    10    36 |
igr | igr 3061 |     7     7    30 |     6     8    32 |    10    10    27 |
igs | igs 3061 |     7     6    32 |     6     8    33 |    10    10    26 |
jgx | jgx 2880 |     7     9    35 |     7    10    33 |    10    11    31 |
jpl | jpl 3072 |    13    10    38 |    11    15    54 |    14    18    37 |
mit | mit 3072 |    12    10    34 |     9     9    40 |    17    12    41 |

Table 5.2274.2   GPS week: 2274   Day: 2   MJD: 60164.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8    10    37 |     8     6    40 |     7    16    26 |
esa | esa 2976 |    12    11    34 |     7     9    44 |     9    20    34 |
gfz | gfz 2880 |     8    10    37 |     6     7    39 |     8    10    22 |
grg | grg 2976 |     8    11    42 |     7    10    42 |     9    10    29 |
igr | igr 2976 |     8     9    35 |     6     7    37 |     7    13    23 |
igs | igs 2976 |     8    10    35 |     6     7    36 |     7    12    23 |
jgx | jgx 2880 |     7    14    40 |     7     9    35 |     8    12    27 |
jpl | jpl 2976 |    15    11    38 |    12    21    55 |    13    19    38 |
mit | mit 2976 |    11    11    42 |    12    13    53 |    10    22    33 |

Table 5.2274.3   GPS week: 2274   Day: 3   MJD: 60165.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9     8    28 |     8     9    35 |    12    10    42 |
esa | esa 2976 |    13    14    28 |     9    12    45 |    12    18    44 |
gfz | gfz 2880 |    10    11    28 |     7    10    34 |    13    11    44 |
grg | grg 2976 |     8    11    32 |     7    12    37 |     9     7    36 |
igr | igr 2976 |     8     8    24 |     7    10    35 |     9     9    34 |
igs | igs 2976 |     8     8    25 |     7     9    33 |     8     9    34 |
jgx | jgx 2880 |     8     8    29 |     7    13    34 |    14    13    36 |
jpl | jpl 2976 |    14    13    30 |    11    20    52 |    13    21    44 |
mit | mit 2976 |    14    12    31 |    13    10    36 |    13    19    44 |

Table 5.2274.4   GPS week: 2274   Day: 4   MJD: 60166.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     7     6    25 |     7     9    37 |     9    15    28 |
esa | esa 2976 |    11    11    30 |     8    13    45 |    12    17    35 |
gfz | gfz 2880 |     8     6    25 |     7     9    41 |     8    11    27 |
grg | grg 2976 |     7     9    31 |     8    11    44 |    14    15    31 |
igr | igr 2976 |     7     7    25 |     7    11    38 |     9    13    24 |
igs | igs 2976 |     7     7    24 |     7     9    37 |     8    13    25 |
jgx | jgx 2784 |     8     8    29 |     7    11    40 |     9    12    25 |
jpl | jpl 2976 |    12    10    34 |    10    22    58 |    13    17    31 |
mit | mit 2976 |    14    12    36 |    12    14    46 |   339   277    80 |

Table 5.2274.5   GPS week: 2274   Day: 5   MJD: 60167.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2965 |     9     9    32 |     6     8    28 |     8    10    30 |
esa | esa 2976 |     9    11    33 |     8    13    34 |    10    13    32 |
gfz | gfz 2784 |    27    12    35 |     6     9    24 |     8     7    31 |
grg | grg 2964 |    10    10    34 |     7    10    28 |     9     8    31 |
igr | igr 2962 |     8     9    28 |     6     9    26 |     7     8    28 |
igs | igs 2964 |     9     8    29 |     6     9    23 |     7     8    27 |
jgx | jgx 2784 |     9    10    34 |     7     8    23 |     9     9    34 |
jpl | jpl 2688 |    13    16    31 |     9    18    43 |    13    14    33 |
mit | mit 2976 |    15    17    41 |     8     9    29 |    13    13    32 |

Table 5.2274.6   GPS week: 2274   Day: 6   MJD: 60168.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |    14     8    39 |    10    10    46 |    10    14    27 |
esa | esa 2976 |    14    12    37 |    12    14    50 |    11    15    39 |
gfz | gfz 2875 |    14    10    37 |     9    12    43 |     9     9    28 |
grg | grg 2975 |    14    10    38 |    10    12    58 |    10    10    30 |
igr | igr 2970 |    13     8    35 |     9    12    44 |    13    14    38 |
igs | igs 2970 |    13     8    35 |     9    12    44 |     9    11    25 |
jgx | jgx 2784 |    14    12    38 |     9    12    42 |    13    12    29 |
jpl | jpl 2784 |    17    23    41 |    14    22    62 |    14    11    39 |
mit | mit 2976 |    16    15    42 |     9    11    60 |    11    11    35 |


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 6.2274   GPS week: 2274   MJD: 60162.500-60168.500

                                                         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     -16     125       1      2 |       1     23
            |      11      19      41      44      3 |       3
esa   uuuuu |       5     -15      76      60     -2 |      10     26
            |       4       4      24      36      3 |       3
gfz   uuuuu |     -11     -37      64      33      0 |      12     27
            |      14       8      68      43      4 |       3
grg   uuuuu |     -28      -4      -3    -177     -5 |      19     32
            |       9       8      49      49      3 |       4
igr   xxxxx |      -4      -2      62      57     -2 |       2     25
            |      12       7      25      31      5 |       3
irf   xxxxx |      -7      12     -77     -30     -2 |       1     24
            |       3       9      22      18      7 |       4
jgx   xxxxx |      -2     -25      64       8      2 |      17     30
            |       7      12      44      64      3 |       3
mit   uuuuu |       4      56    -289     -34      4 |      33     40
            |      10      17      33      66      5 |       3
ngs   uuuuu |      25      25     -50     133      1 |      14     28
            |      17      32      98     112      4 |       4
sio   xxxxx |     -33      11      22     -45     -7 |      28     36
            |      54      65      53      69      9 |       7


Table 7.2274.0   GPS week: 2274   Day: 0   MJD: 60162.500

                                                         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 |      17     -47     121     -54      4 |       4     18
esa   uuuuu |       5     -17     102      18      3 |      13     22
gfz   uuuuu |     -12     -29     133      86     -2 |      15     24
grg   uuuuu |     -16       6     -38    -140     -4 |      23     30
igr   xxxxx |       8       4      50      92      1 |       4     22
irf   xxxxx |      -6      23     -76     -10    -11 |       7     17
jgx   xxxxx |       4     -38       3     -28     -2 |      20     27
mit   uuuuu |     -10      71    -252      94     -1 |      36     40
ngs   uuuuu |      16      48    -176      -4     -6 |      20     26
sio   xxxxx |    -122      33      92      17     -9 |      39     40

Table 7.2274.1   GPS week: 2274   Day: 1   MJD: 60163.500

                                                         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     -15     166      64      5 |       3     19
esa   uuuuu |       6     -18      59      43     -2 |      12     22
gfz   uuuuu |       0     -46      58     -48     -3 |      14     24
grg   uuuuu |     -29      -5      42     -91     -3 |      22     30
igr   xxxxx |     -13      -1      36      50      5 |       3     22
irf   xxxxx |     -11      12     -80     -15     -7 |       5     19
jgx   xxxxx |     -15     -35      60      22      2 |      19     27
mit   uuuuu |       8      54    -288      -4      0 |      35     39
ngs   uuuuu |      37      50    -179      20     -2 |      18     26
sio   xxxxx |     -75      57     -49    -172     -9 |      36     39

Table 7.2274.2   GPS week: 2274   Day: 2   MJD: 60164.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -10     -30     169      -5      1 |      -1     24
esa   uuuuu |       6      -8      59     112     -2 |       8     26
gfz   uuuuu |       6     -37       0      27      5 |      10     28
grg   uuuuu |     -33      -8      12    -227     -8 |      18     32
igr   xxxxx |       0      -7      65      44      3 |       0     26
irf   xxxxx |      -9      14     -81     -52     -5 |       0     26
jgx   xxxxx |      -5     -37      88      26      6 |      15     29
mit   uuuuu |       9      31    -248     -71     -2 |      31     39
ngs   uuuuu |      27      66     -81     177      3 |      12     28
sio   xxxxx |       4      98      47     -28    -25 |      30     38

Table 7.2274.3   GPS week: 2274   Day: 3   MJD: 60165.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       0       7     113      48      2 |       5     24
esa   uuuuu |       7     -18      69      61     -2 |      13     28
gfz   uuuuu |      -3     -38     -34      10     -1 |      15     30
grg   uuuuu |     -24     -16      71    -185     -9 |      22     34
igr   xxxxx |      -5     -12     101      18     -3 |       6     25
irf   xxxxx |     -10      -5     -89     -32     -4 |       4     26
jgx   xxxxx |      -5     -17     108     -49      6 |      20     33
mit   uuuuu |      -4      44    -286     -17      2 |      35     43
ngs   uuuuu |      31      16     -22      83      7 |      16     30
sio   xxxxx |     -20     -79      65     -92     -7 |      30     38

Table 7.2274.4   GPS week: 2274   Day: 4   MJD: 60166.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       3     -17      78      18     -4 |       2     24
esa   uuuuu |       9     -11      87      28     -4 |      11     28
gfz   uuuuu |     -32     -43     103      56      4 |      13     30
grg   uuuuu |     -21       4     -42    -172     -3 |      19     33
igr   xxxxx |       0       2      66      50     -7 |       4     26
irf   xxxxx |      -4      20    -101     -38      3 |       1     27
jgx   xxxxx |       4     -12      54     -77      2 |      18     32
mit   uuuuu |       0      61    -343     -70      9 |      33     41
ngs   uuuuu |      34      22      54     144      3 |      13     29
sio   xxxxx |     -53      41      38     -18      2 |      25     35

Table 7.2274.5   GPS week: 2274   Day: 5   MJD: 60167.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      10     -16      70     -24      3 |      -2     25
esa   uuuuu |      -3     -16     109      56     -7 |       6     27
gfz   uuuuu |     -27     -45     147      49     -6 |      10     29
grg   uuuuu |     -28       2     -64    -233     -4 |      14     31
igr   xxxxx |       9       7      31     107     -5 |      -2     26
irf   xxxxx |      -5      17     -84     -52      8 |      -4     26
jgx   xxxxx |       3     -24      15      55      2 |      14     30
mit   uuuuu |       6      83    -313    -104     12 |      29     37
ngs   uuuuu |      40      -9      29     319      4 |       9     27
sio   xxxxx |      -2      -7     -32     -48      2 |      21     32

Table 7.2274.6   GPS week: 2274   Day: 6   MJD: 60168.500

                                                         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 |      17       4     155     -40      3 |      -2     25
esa   uuuuu |       7     -17      44     105      0 |       5     27
gfz   uuuuu |     -11     -24      38      50     -1 |       9     29
grg   uuuuu |     -43     -12       0    -192     -6 |      13     30
igr   xxxxx |     -25      -5      84      42     -7 |      -2     26
irf   xxxxx |      -4       6     -30     -12      3 |      -4     26
jgx   xxxxx |      -2     -10     119     108     -2 |      14     30
mit   uuuuu |      21      49    -291     -66      5 |      30     38
ngs   uuuuu |     -10     -19      27     196     -1 |      10     28
sio   xxxxx |      36     -65      -8      30     -1 |      19     30


More information about the IGSREPORT mailing list