[IGSREPORT-25362] Wk 1953 IGS Final Orbits

acc acc at igs.org
Sun Jul 2 06:07:58 PDT 2017


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 1953   (Jun 11, 2017 - Jun 17, 2017)

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:

igs1953[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1953[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1953[0-6].cls  IGS GPS clock combination summary report.
igs19537.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs19537.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   | TIXI FAA1 TIXI
                0  |  EMR   | KOUR SFER
                0  |  ESA   | CHTI FAA1 MAL2 CHTI FAA1 MAL2
                0  |  GFZ   | 13 13 FAA1 GODE POHN SOFI GODE NAIN POHN SOFI
                0  |  GRG   | 13 13 CHTI GLSV NAIN NLIB REUN SEYG SYOG CHTI GLSV
                0  |  GRG   | SEYG SYOG
                0  |  MIT   | 3 3
                1  |  COD   | 24 24 TIXI TIXI
                1  |  EMR   | HERS ALBH HERS KERG KIRU MAR6 MAS1 ONSA SFER SUWN
                1  |  EMR   | TWTF USUD WILL WSRT
                1  |  GFZ   | GODE POHN GODE POHN
                1  |  GRG   | GLSV NAIN PIE1 SYOG CHTI GLSV MAL2 NAIN PIE1 SYOG
                1  |  MIT   | NAUR NAUR
                2  |  COD   | FAA1 PBRI TIXI PBRI TIXI
                2  |  EMR   | ALBH ALGO DRAO FAIR HOB2 KERG KOKB PERT SUWN WHIT
                2  |  EMR   | WILL
                2  |  ESA   | CHTI CHTI
                2  |  GFZ   | FAA1 GODE POHN GODE POHN
                2  |  GRG   | 13 18 13 18 CHTI PIE1 SYOG ULAB CHTI SYOG ULAB
                2  |  MIT   | MAD2 MAD2
                3  |  COD   | AUCK CHTI FAA1 GLSV TIXI UFPR FAA1 GLSV TIXI UFPR
                3  |  EMR   | SYOG ALBH HERS MAR6 ONSA YAKT
                3  |  GFZ   | GODE POHN GODE PIE1 POHN SYOG
                3  |  GRG   | 20 20 ADIS CHTI PIE1 SYOG TASH ADIS CHTI MAL2 SYOG
                3  |  GRG   | TASH
                4  |  COD   | 7 7 KERG TIXI FAA1 KERG SYOG TIXI
                4  |  EMR   | KERG HERS KERG YAKT
                4  |  GFZ   | 13 GODE KOUR MAL2 AUCK GODE KOUR MAL2
                4  |  GRG   | 13 13 ADIS GLSV MAW1 NAIN SYOG ADIS FAA1 GLSV MAW1
                4  |  GRG   | NAIN SYOG ULAB
                5  |  COD   | 31 31 TIXI
                5  |  EMR   | HERS
                5  |  GFZ   | GODE MAL2 POHN GODE POHN SAVO
                5  |  GRG   | 13 13 ADIS CHTI GLSV LHAZ SYOG CHTI GLSV LHAZ MAL2
                5  |  GRG   | SYOG
                5  |  JPL   | MAL2
                5  |  MIT   | MANA BOR1 MANA
                6  |  COD   | 30 30 TIXI TIXI
                6  |  EMR   | HERS
                6  |  ESA   | FAA1 MAL2 FAA1 MAL2 TUVA
                6  |  GFZ   | 13 AUCK CHTI FAA1 GODE POHN AUCK CHTI FAA1 GODE POHN
                6  |  GFZ   | SYOG
                6  |  GRG   | 13 13 CHTI GLSV NAIN SYOG CHTI GLSV NAIN SYOG
                6  |  MIT   | MANA MANA

 5. Starting on 22-Oct-2000 (GPS Week 1085-0; MJD=51839) all IGS clock products
    are based on the new clock combination scheme which uses the clock RINEX
    files as input if available, otherwise SP3 clocks are used. The AC clocks are
    corrected for the radial offsets of their satellite orbits compared to the
    combination.

 6. The following table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G15 | 2017_06_15 | 2017056 
               G15 | 2017_06_16 | 2017056 

 7. 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 G06 |  4 |  4 |    |    |    |    |    |

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

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .4     .1     .5       1      4     -5    -.27
       EMR  |   0 |    3.7   -1.7  -10.8       1     53    -30     .03
       ESA  |   0 |   -1.0    -.9     .2      -5      7    -18    -.28
       GFZ  |   0 |     .2    -.3     .2     -16    -22      2    -.15
       GRG  |   0 |    2.4   -1.9    1.3      45     12     22    -.40
       JPL  |   0 |    4.4   -9.2   -2.8      18    -11     84     .48
       MIT  |   0 |     .8   -6.8   -1.9     -17     34    -14     .02
       NGS  |   0 |   -2.4   -4.4   -5.5      -8    -10     -5    -.08
       SIO  |   0 |   -1.5   -7.1  -10.7      -7     -5     -3    -.10

       COD  |   1 |    -.2    -.1     .1      -9      9     -6    -.24
       EMR  |   1 |   -4.9   -5.0   -7.9      10     44    -71     .16
       ESA  |   1 |   -1.2   -1.5    -.2     -19     17    -10    -.15
       GFZ  |   1 |    -.1    -.4     .3     -13    -15     10    -.23
       GRG  |   1 |     .4   -6.7    1.3      34    -11      4    -.04
       JPL  |   1 |    5.8   -2.8   -4.4       7    -39     34     .44
       MIT  |   1 |     .5   -5.3    1.5     -28     39    -10    -.02
       NGS  |   1 |     .7   -5.8    2.1      29    -40     -1    -.0 
       SIO  |   1 |    1.7   -1.7  -10.1     -15     -2      0    -.15

       COD  |   2 |    -.3     .2    1.0       4     19     -2    -.26
       EMR  |   2 |   -1.9   -3.9   -6.1     -26     15    -26     .29
       ESA  |   2 |    -.7    -.9     .0     -34     23      1    -.21
       GFZ  |   2 |    -.1    -.0     .6      -8    -11      7    -.20
       GRG  |   2 |    6.5   -6.0   10.8      54     26     15    -.03
       JPL  |   2 |    5.5   -4.4  -13.3     -40    -62     52     .64
       MIT  |   2 |     .6   -5.3   -1.0     -37     37     17     .01
       NGS  |   2 |   -7.3   -3.8   -4.7       0      1    -10    -.07
       SIO  |   2 |   -1.0   -1.6  -22.3     -20    -27     -5    -.03

       COD  |   3 |     .0     .2     .7       8     17     -4    -.22
       EMR  |   3 |     .4   -5.9   -6.3     -34     54    -51     .28
       ESA  |   3 |    -.8    -.5     .5     -31      0      2    -.25
       GFZ  |   3 |     .0     .3     .6      -7     -2     -5    -.07
       GRG  |   3 |    3.4   -9.7   10.4      53     12     27     .03
       JPL  |   3 |    7.2  -10.4   -6.2     -22    -65     57     .68
       MIT  |   3 |    -.3   -6.9    1.9     -22     10     -5     .04
       NGS  |   3 |   -3.5   -7.7    4.2      -9    -24     -3    -.04
       SIO  |   3 |    2.7   -5.7   -9.6      -9    -34      5    -.04

       COD  |   4 |    -.1     .0     .7       3     18     -3    -.25
       EMR  |   4 |    9.9   -3.7   -1.8     -32     62    -47     .10
       ESA  |   4 |   -1.1    -.6    1.1     -36      9     26    -.26
       GFZ  |   4 |     .3    -.1     .5     -10    -16      7    -.11
       GRG  |   4 |    4.9   -6.8    2.4      49      2     24    -.22
       JPL  |   4 |   10.0   -2.2  -10.0     -11    -31     94     .57
       MIT  |   4 |    3.1   -5.8    2.4     -27     33     18     .07
       NGS  |   4 |    5.6   -4.4   -4.7     -20     -9      8     .07
       SIO  |   4 |    2.3    -.9  -14.8     -19    -18      9     .01

       COD  |   5 |    -.0     .1     .5      -2     14    -12    -.08
       EMR  |   5 |    6.7   -4.3   -5.0      -3     70    -30     .01
       ESA  |   5 |    -.8    -.3     .5     -28     13     -3    -.20
       GFZ  |   5 |    -.1     .0     .3     -10    -11     -1    -.15
       GRG  |   5 |    8.9   -6.0   -4.2      52    -10     35    -.28
       JPL  |   5 |    6.2  -11.7   -5.3     -28    -31     91     .57
       MIT  |   5 |     .1   -4.7     .4     -29     31     -6    -.02
       NGS  |   5 |    -.5   -6.4    2.4      12     -8    -21     .19
       SIO  |   5 |    1.2   -3.4   -8.8     -10     -5      1    -.07

       COD  |   6 |    -.1     .4     .4       2     12    -12    -.11
       EMR  |   6 |    5.1   -9.9   -2.5     -12     53    -19     .07
       ESA  |   6 |    -.7    -.3     .4     -21     28    -15    -.24
       GFZ  |   6 |     .2     .1     .4     -11    -14     -5    -.10
       GRG  |   6 |   -1.2   -4.2   -2.4      64    -15     21    -.13
       JPL  |   6 |     .2   -9.7  -11.6     -19    -33     44     .57
       MIT  |   6 |    -.3   -1.8    4.3     -27     39     -4     .05
       NGS  |   6 |   -5.6   -9.3    2.1      31    -17    -17    -.04
       SIO  |   6 |     .6   -4.0   -3.0       7    -11     -9    -.16


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

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    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
        ftp://igs.org/pub/station/general/igs14.atx


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 1.1953.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1953.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 2.1953.[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 3.1953.[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 5.1953.0-6). 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 1953 summary.                       (Jun 11, 2017 - Jun 17, 2017)

Table 1.1953.a   GPS week: 1953   MJD: 57915.000-57921.000

         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  276|    0     0     4     8    -9   -18  -.01   10   10 |    -435    -263     11    101
        |    0     0     2    12    11     7   .04           |     258     535
emr   84|   -2    -1    -4    12    19    20   .26   15   15 |   23406     -18     20    109
        |    1     1     1    19    27    16   .03           |   57845     824
esa  149|    0     0    -4    -1     0   -12  -.08    8    8 |    -162   -1607      8    161
        |    0     0     1     9    10     5   .02           |    1501    3005
gfz  200|    0     1     3     5     1    -7   .03   11   10 |      23    -207     10    119
        |    0     0     0    14    16    13   .03           |     258     368
grg  109|    2     0     3    -2    -7    11  -.31   15   14 |     128    -134     13    157
        |    0     0     5    11    18     6   .03           |     217     335
igr  n/a|    0     0     0    18    -6   -10   .02    4    4 |    9782       9     12     73
        |    0     0     0    10    13    14   .01           |     628     756
jpl   80|   -2     0    -3     3   -15    39   .22   12   12 |   18099     -10     40    201
        |    1     1     1    13    20    18   .05           |   44776     793
mit  350|    0     0     1   -17     2    17   .07   10   10 |    -359    -295     36    303
        |    1     0     0    22    23    11   .04           |     648     363
ngs  219|   -1     1    -3    -1    -4     4   .03    9    8 |    -477    -230    949   2099
        |    0     0     2    20    23     6   .05           |     200     383
sio  96842|    0     0     0    12     1     4  -.06   16   16 |     ---     ---    ---    ---
        |    0     0     1    36    80    25   .01           |     ---     ---


Table 1.1953.b   GPS week : 1953   MJD: 57915.000-57921.000   

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



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 2.1953.0   GPS week: 1953   Day: 0   MJD: 57915.000                            

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  275|    0     0     9     2   -24   -11  -.07   11   10 |    -161    -924     11     90
emr   85|    0    -1    -4    14    27     6   .23   15   15 |    1270    1252     18    112
esa  150|   -1     0    -7    13     0   -13  -.07    8    8 |     727   -2643     13    194
gfz  197|    0     0     3    22    -6     9   .00   11   11 |     323    -173     10    105
grg  109|    0     0     7   -11    10     5  -.29   15   12 |     216    -269     15    167
igr  n/a|   -1     0     1    14    -3     7   .02    5    4 |    9061    1198     13     66
jpl   80|   -3     0    -2     2    19     4   .16   12   12 |    1028    1220     38    176
mit  350|    2     0     2    -5    11     0   .11   12   11 |     819    -490     48    274
ngs  220|   -1     1    -5   -28    -1    17   .11   10    8 |    -484    -450   1193   2347
sio  334|    0    -1     0     6   -13    14  -.07   13   12 |     ---     ---    ---    ---

Table 2.1953.1   GPS week: 1953   Day: 1   MJD: 57916.000                            

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  276|    0     0     3     8    -3   -13   .01    9    8 |    -876     480     10     99
emr   85|   -5    -1    -7     2    10    16   .24   16   16 |    2110     271     22    108
esa  150|    0     0    -5     5    11   -14  -.07    8    7 |      26   -1316      8    148
gfz  199|    0     2     3   -12    30     5   .00   11    9 |     288    -572     10    110
grg  108|    1     0     6   -19    -8    14  -.34   15   13 |      84    -101     14    153
igr  n/a|    0     1     0     0    -8     0   .02    5    4 |    9854     193     12     63
jpl   80|    0     0    -1    15   -29    32   .16   12   12 |    1687     135     41    189
mit  350|    1     0     0    14    24     9   .11   10   10 |    -262    -306     34    303
ngs  216|   -1     0    -1   -31   -44     0   .05   10    8 |    -775     323    856   1872
sio  340|    0     0     0    38   -24    20  -.05   12   12 |     ---     ---    ---    ---

Table 2.1953.2   GPS week: 1953   Day: 2   MJD: 57917.000                            

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  277|    0     0     4    23   -21   -30  -.02   11   11 |    -335    -393     11    101
emr   85|   -2     0    -3    50   -32     0   .24   15   15 |  154576    -111     23    117
esa  150|    0     0    -3     3   -12    -7  -.10    8    9 |   -1666    2176      8    130
gfz  200|    0     0     4     3   -23    -1   .07   11    9 |     159    -115     10    108
grg  110|    2     0     6    15   -30     2  -.36   17   14 |     -94     207     13    145
igr  n/a|    0     1     1    27   -26   -19   .01    5    4 |   10285     263     12     68
jpl   80|   -2     0    -5     9   -39    39   .20   13   13 |  119631     -10     42    209
mit  350|    1     0     2   -42     0    15   .07   10   10 |   -1117      77     37    291
ngs  214|   -1     1    -6    19   -23     7   .05    9    8 |    -167    -772    700   2079
sio  338|    0     0     2   -53   144    28  -.04   12   13 |     ---     ---    ---    ---

Table 2.1953.3   GPS week: 1953   Day: 3   MJD: 57918.000                            

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  275|    0     0     1   -14   -14   -21  -.06   10    9 |    -526     424     10    111
emr   85|   -1     0    -5   -12    30    31   .26   15   15 |    1999     479     21    103
esa  150|    0     0    -5    -7    -8   -15  -.11    9   10 |   -1952     824      8    159
gfz  203|   -1     2     4    11     5   -22  -.01   11   10 |    -314     278     11    119
grg  112|    2    -1     9     0     1    10  -.33   15   14 |    -154     312     13    177
igr  n/a|    0     0     0    26    -5   -18   .01    4    4 |   10180     430     12     75
jpl   80|   -2     1    -4    11   -32    37   .23   12   12 |    1597     551     38    207
mit  350|    0     0     1     4     7    20   .08    9    9 |    -890     162     37    298
ngs  221|    0     0    -1     1    -1     6   .05   10    8 |    -480     202    907   1773
sio  339100|    0     0     0    48    10    -2  -.06   22   21 |     ---     ---    ---    ---

Table 2.1953.4   GPS week: 1953   Day: 4   MJD: 57919.000                            

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  275|    0    -1     2    11    -2   -25   .01   10    9 |    -235    -570     10     98
emr   85|    0     0    -5    13    12     9   .29   15   15 |    2385   -1225     21    113
esa  150|    0     0    -2    -8   -11   -12  -.07    8    8 |    -340   -1481      9    151
gfz  202|    0     1     3    12    -6   -23   .04   12   10 |      35    -760     11    154
grg  109|    2    -1     6     0   -35    20  -.31   17   15 |     471    -712     14    158
igr  n/a|    0     0     0    28   -19   -33   .02    4    4 |   10492   -1092     15     86
jpl   80|    0     2    -5    15   -19    47   .28   13   13 |    1899   -1104     37    196
mit  350|    0     0     1   -25    21    30   .07   10    9 |     -16    -930     30    333
ngs  219|   -1     2    -4     5     0     0   .00    9    8 |    -344    -418   1165   2563
sio  342|    0    -1     0   -18    23    17  -.05   16   17 |     ---     ---    ---    ---

Table 2.1953.5   GPS week: 1953   Day: 5   MJD: 57920.000                            

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  276|    1     0     6    19     5   -10   .02   14   13 |    -269    -644     16    113
emr   84|   -3    -2    -4     9    36    35   .28   15   15 |    1388    -833     19    107
esa  146|    0     0    -3   -10     4   -20  -.08    8    8 |    -440   -1478      7    148
gfz  202|    0     2     2    16     2   -13   .06   11   10 |    -301     150      9    119
grg  109|    2     0    -4     5     4    14  -.29   15   14 |     287    -177     13    144
igr  n/a|    0     0     1    22     0   -11   .01    5    5 |    9786    -665     14     81
jpl   80|   -1    -1    -3   -11    -3    59   .24   12   12 |    1015    -866     37    211
mit  350|   -1     0     2   -32   -44    13   .01   10    9 |    -748    -253     36    315
ngs  225|   -1     1    -1     2    13    -1  -.04    8    7 |    -425    -327    969   2292
sio  337100|    0    -2     2    31     0     2  -.05   21   22 |     ---     ---    ---    ---

Table 2.1953.6   GPS week: 1953   Day: 6   MJD: 57921.000                            

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  280|    0     0     3    11    -3   -17   .05    9    9 |    -649    -215     11    101
emr   84|   -1    -4     0    13    52    46   .30   16   16 |     116      41     16    104
esa  150|    0     0    -3    -9    13    -3  -.05    8    8 |    2508   -7332      8    199
gfz  201|    0     1     3   -16     9    -7   .04   10    9 |     -25    -257     11    120
grg  109|    1     0    -3    -5     6    13  -.28   13   14 |      86    -201     12    159
igr  n/a|    0     0     1    12    14     0   .04    4    4 |    8816    -263     12     78
jpl   80|   -4    -2    -2   -17    -2    56   .26   12   12 |    -159       0     49    220
mit  350|   -1     0     2   -37    -5    32   .03   12   12 |    -301    -330     35    308
ngs  220|    0     1    -3    17    26     4  -.02    9    8 |    -669    -171    853   1771
sio  341|    0    -1     0    33  -130   -47  -.06   14   14 |     ---     ---    ---    ---

       
       
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 3.1953.0   GPS week: 1953   Day: 0   MJD: 57915.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   14    6    8    7    4    9    6    7   12    3 |    20   27   20   21   19   20   22   21   21   25    20
   2  |    9   11    8   10   16    3   10    7    9   13    4 |    16   20   16   17   16   15   19   16   15   14    14
   3  |   10   16   10   10    8    6   18    8    7   15    4 |    25   37   24   28   28   26   38   28   27   27    26
  X4E |    5  ---  ---  ---  ---   48   26  ---  ---  ---    0 |   135  ---  ---  ---  ---  143  138  ---  ---  ---   135
   5  |    6   12    8    8    7    3    9    9    6   10    3 |    20   23   23   23   17   22   21   22   23   24    21
   6  |    7   11    6    6   11    4    9   14    5   13    3 |   174  174  173  174  176  174  174  173  175  175   174
   7E |   13   11    6   10   26    4   10   16   11    9    5 |    88   89   86   87   91   85   88   86   88   87    87
   8  |   14   20   10    7   26    4   10    9   10    8    5 |    22   26   21   22   31   21   23   20   21   19    20
   9  |    6   10    7    7   10    3   12    9    8    7    3 |    22   28   25   22   20   23   28   25   24   25    23
  10  |    6   13    7    8    8    3   11    6    7    6    3 |    32   38   27   33   31   32   37   35   30   31    31
  11E |   12   11    9   13   15    5    9    7    7   12    4 |    32   28   21   26   33   25   27   25   28   25    25
  12  |   14   18    5   14   20    3   14   10   12   16    5 |    25   30   24   29   22   26   29   31   30   27    26
  13  |   11   16   12   10   13    6   14   12    9   19    4 |    27   36   25   34   25   27   34   33   33   37    29
  14  |    9   11   10   14   12    4    9   12    9   18    4 |    28   29   24   33   26   27   29   29   30   28    26
  15  |   11   17   13   15   13    5   17   22   11   15    5 |    27   24   20   20   18   25   27   25   19   21    24
  16  |   15   24    6   16   19    4   12   13   10   24    6 |    24   24   25   37   23   30   25   33   32   33    27
  17E |   15   15    6   12   18    4   14   10   10    8    4 |    76   80   78   83   78   79   79   83   80   80    79
  18  |    6   18    7   10    8    4   10   15    7    9    4 |    24   22   22   25   25   23   24   29   24   24    23
  19E |   15   13    7   10   17    4   11    9   11   11    4 |    45   48   45   45   42   45   47   45   46   43    44
  20  |    7   14    9   13    8    4   11   13    7    9    4 |    27   22   22   25   22   24   22   32   28   24    24
  21  |    9   11   10   12   13    4    9   16    6   14    4 |    21   25   20   25   18   20   23   23   21   22    19
  22  |    7    9    9    9    7    5    8    9    8   17    3 |    16   21   15   21   22   19   22   22   23   25    18
  23  |   12   27    9   13   14    5   15   15   13   16    5 |    30   29   25   32   29   28   30   31   31   30    27
  24E |   20   22   11   15   15   12   12   18   24   19    6 |   109  103  106  107  104  104  108  109  104  109   106
  25  |    9   13    5    8    8    3   13    6    6   17    3 |    17   28   19   17   18   17   24   19   18   28    19
  26  |   10   12    5    7   11    3    8   12    6    8    3 |    24   28   23   25   26   24   26   20   24   26    23
  27  |   13   13   11    7   25    4    9   12    7    8    4 |   136  140  141  141  142  138  140  137  139  138   139
  28  |   13   10    9   15   15    5    8   10   12   20    5 |    19   25   20   28   18   20   24   24   26   19    20
  29E |   11   23    7   13   20    4   20   14   11   11    5 |    56   55   57   57   51   57   56   54   58   55    55
  30E |   15   15   10   11   19    4   11   12   10    6    4 |    26   22   26   26   23   23   22   31   20   26    23
  31E |   11   13    6    9   18    4    9   11   10    9    4 |    70   71   71   72   72   71   71   74   75   72    72
  32  |    6   11    9    9    8    4    8    7    7   10    3 |    23   29   26   27   21   25   29   25   26   30    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    8   11   15    5   12   12   10   13      |T   44   44   40   43   41   44   47   43   43   43    44
 WRMS |   10   15    8   11   12    4   12   11    8   12      |NE  34   38   33   37   34   35   37   37   36   37    34
 MEDI |   10   13    8   10   13    4   10   11    9   12      |MD  26   28   24   28   25   25   28   29   28   27    25

Table 3.1953.1   GPS week: 1953   Day: 1   MJD: 57916.000                            

        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   14    4    8   10    4    9    7    6   14    3 |    19   25   17   17   20   17   21   19   18   26    18
   2  |   10   13    6    8   17    4   16    9   11   14    4 |    19   20   15   16   16   15   21   16   16   13    14
   3  |    8   17    9   10    7    4   15    8    6   11    3 |    20   35   19   19   17   21   34   23   23   24    20
  X4E |    2  ---  ---  ---  ---   23   20  ---  ---  ---    0 |   114  ---  ---  ---  ---  119  117  ---  ---  ---   115
   5  |    8   16    7    7   10    4   12    9    7   10    3 |    16   20   15   16   14   18   19   19   20   21    16
   6  |    6    9    7    6    9    4   11   14    7   12    3 |   159  160  158  160  160  159  161  160  162  160   160
   7E |    8   12    4    8   17    3   10    8    9    7    3 |    55   58   54   55   55   54   53   55   56   53    55
   8  |    9   18   10    9   29    4   11    9    7    7    4 |    18   25   18   22   26   18   22   19   17   21    18
   9  |    6   12    7    6   10    3   11    5    8    6    2 |    23   28   24   21   19   21   25   25   20   25    22
  10  |    5   13    6   10    9    3   13    4    7    8    3 |    24   34   21   28   21   25   31   23   25   26    24
  11E |   11   13    8   11   16    5    8    7    4   10    3 |    28   25   20   25   34   23   27   23   23   23    23
  12  |    9   24    6   13   16    3   16    9   13   15    4 |    22   28   18   20   16   20   23   25   27   20    20
  13  |   10   15   11   14   13    4   13   12   12   14    4 |    24   31   25   31   23   26   28   27   30   28    25
  14  |    7   11    9   15   14    5   10    9    9   14    4 |    23   24   20   26   20   21   22   24   26   20    21
  15  |    9   21   12   14   13    7   14   21   13   13    5 |    20   24   16   21   15   19   22   26   19   19    18
  16  |   13   25    6   19   20    5   15   12   11   23    5 |    19   21   19   31   18   22   19   26   25   25    20
  17E |   11   16    6   10   18    5   12   10    9    9    4 |    59   62   58   59   59   59   58   60   58   59    58
  18  |    7   19    8    8    9    5   15   13    9    8    3 |    20   20   20   26   16   18   20   21   21   25    18
  19E |   13   15    5   10   15    5   11   11   10   12    4 |    46   46   43   41   45   43   46   45   44   43    43
  20  |    7   12    9   14    9    6    9   12   11   12    4 |    22   19   16   16   16   17   18   25   23   19    17
  21  |    9   13    8   13   15    5   11   13    9   15    4 |    21   25   19   24   16   19   21   21   19   20    18
  22  |    6   10    9    8   10    5    6    9    9   13    3 |    15   19   11   16   13   14   18   16   20   22    14
  23  |   11   28    9   14   15    4   15   14   10   15    5 |    25   28   23   25   23   23   25   27   24   26    23
  24E |   10   23   11   10   22    8   19   12   23   13    5 |    52   56   48   49   50   50   53   43   53   42    48
  25  |    6   13    4    8   10    3   11    7    6    7    2 |    14   24   16   16   16   15   20   16   16   17    15
  26  |    8   10    5    8   12    3    8    8    6    8    3 |    19   24   20   21   18   18   20   17   19   21    18
  27  |    8   15   10    7   23    4   11    8    6    6    4 |   117  120  121  116  118  117  119  116  117  118   117
  28  |   12   11    8   17   15    4    9    9   10   17    4 |    17   23   17   26   14   18   22   22   23   17    18
  29E |    9   25    7   14   21    7   20   10    9    9    4 |    36   33   36   40   30   36   34   36   37   36    34
  30E |   10   12   10    8   17    3   10    7   10    6    3 |    18   18   19   20   21   17   19   21   15   21    17
  31E |    9   13    5    9   13    4   10    8    9    9    3 |    46   48   46   46   46   47   46   49   50   47    47
  32  |    7    8    8   10    8    4    8    6    8   14    3 |    19   23   20   23   17   20   23   21   19   28    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   16    8   11   15    5   12   10   10   12      |T   35   36   32   34   32   35   37   34   34   34    34
 WRMS |    8   16    7    9   13    4   12   10    8   12      |NE  30   34   29   32   28   29   32   31   31   32    29
 MEDI |    8   13    8   10   14    4   11    9    9   12      |MD  22   25   20   25   20   21   23   24   23   25    20

Table 3.1953.2   GPS week: 1953   Day: 2   MJD: 57917.000                            

        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   12    4    7   13    3   12    6    8    9    3 |    20   23   19   18   23   19   24   18   19   27    19
   2  |    9   12    8    7   17    4   14    9    9   14    4 |    21   20   16   16   19   15   23   15   16   18    15
   3  |    9   12    8    8    8    4   12    7    9    7    3 |    23   36   22   27   24   27   37   24   27   28    24
  X4E |    3  ---  ---  ---  ---   31   38  ---  ---  ---    0 |   100  ---  ---  ---  ---  100  103  ---  ---  ---   100
   5  |    6   11    9    9    8    3   10    8    8   12    3 |    19   22   18   19   15   19   23   18   24   25    19
   6  |    9   10    6    7   10    4   10   11    8    8    3 |   143  142  145  143  140  144  144  148  143  147   144
   7E |    7   10    5    9   26    3   11    7   11    8    4 |    39   39   36   35   39   35   32   37   37   37    36
   8  |   17   17   10   10   25    5    9    9    9    6    5 |    22   22   20   22   29   20   23   19   20   26    20
   9  |    5   11    6    5    9    6   28    7   10    9    3 |    20   29   21   20   21   22   34   22   21   30    21
  10  |    8   12    8    8    9    2   11    8   10   11    3 |    31   37   24   29   27   27   33   30   26   34    28
  11E |   15   13    8    9   14    4    9    9    5    8    3 |    32   28   22   25   31   23   27   23   24   27    24
  12  |   11   19    8   10   14    3   13    9    7   15    4 |    25   26   19   24   19   21   23   23   24   23    21
  13  |   10   14   12   13   15    5   14   10   10   14    4 |    19   30   19   27   21   23   27   25   27   25    21
  14  |   12   14    9   16   15    4   10   11   10   16    4 |    24   25   21   30   24   23   24   26   24   29    23
  15  |   10   17   13   13   12    7   16   20   11   13    5 |    26   27   19   25   18   24   26   26   22   27    24
  16  |   16   22    6   15   20    5   17   11   10   22    5 |    23   20   19   27   21   21   21   25   23   28    21
  17  |   12   15    5   12   26    5   14    8   11   15    4 |    49   50   49   50   48   49   49   49   49   49    48
 X18  |    9   17    8  ---   12    5   10   17   10  ---    5 |    32   34   26  ---   31   31   27   33   30  ---    29
  19E |   15   18    6    9   16    4   13    9   11   10    4 |    68   70   68   66   69   66   70   67   67   65    67
  20  |    8   13   11   13   10    4   11   12    7   13    4 |    24   19   22   23   18   20   22   24   26   23    21
  21  |    9   17   10   13   15    4   10   13    9   17    4 |    16   26   15   19   19   15   19   19   20   20    14
  22  |    8   12    9    9    8    5   11    8    9   14    3 |    16   22   16   24   21   20   24   21   19   31    19
  23  |   11   26    9   12   15    4   15   13   11   15    5 |    20   28   19   27   22   20   25   25   19   31    21
  24E |    7   13   11    9   16    6   11    8   14   11    4 |    37   35   33   33   42   33   36   37   37   37    35
  25  |   12   12    7    8   10    8   10    5    6   13    3 |    21   24   20   19   19   17   21   17   19   29    19
  26  |   12   12    7   10   12    4    7   11    8   10    3 |    24   25   21   23   20   21   24   20   22   27    21
  27  |   15   19   10   10   20    4   11   11    7    9    4 |   120  120  120  124  119  120  123  125  123  125   122
  28  |    9   12    8   15   24    5   11    9   10   18    5 |    18   26   19   30   19   20   24   25   26   22    20
  29  |    8   24    5   12   25    6   14   11    9   11    5 |    26   27   29   32   24   29   30   30   34   30    28
  30E |   12   14   10   12   27    4   11    8   11   11    5 |    19   20   20   21   24   17   22   20   19   24    18
  31E |   14   14    5   11   22    4    9   10    6   12    4 |    28   34   29   33   32   30   30   33   30   33    30
  32  |    9   12    8   12    8    3    7    5    6   10    3 |    17   23   22   23   20   20   24   20   24   29    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15    8   11   17    5   13   10    9   12      |T   35   35   31   34   32   34   37   33   33   36    34
 WRMS |   11   15    9    9   14    4   13   10    8   13      |NE  31   35   29   33   30   30   34   32   32   36    30
 MEDI |    9   13    8   10   15    4   11    9    9   11      |MD  24   27   21   25   23   22   25   25   24   28    21

Table 3.1953.3   GPS week: 1953   Day: 3   MJD: 57918.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6   12    5    7   11    3    8    6    6   23    3 |    21   28   21   21   22   21   25   22   23   31    21
   2  |    8   10    9    8   17    3   10    9    9   19    4 |    18   22   18   19   20   18   23   17   17   21    17
   3  |    9   14    9    8    7    4   13    9    8   25    4 |    22   35   21   26   25   25   36   26   26   33    24
  X4E |    2  ---  ---  ---  ---   29   24  ---  ---  ---    0 |   108  ---  ---  ---  ---  106  103  ---  ---  ---   109
   5  |    7   11   11    7    8    3   10    9   10   18    3 |    19   23   20   17   18   19   24   21   22   28    19
   6  |    8   12    7    7    9    4   10    8    6   17    3 |    75   79   77   77   73   77   81   73   78   75    76
   7E |   12   11    6   10   12    3   11    8   10   18    4 |    60   60   59   60   63   60   59   61   60   67    60
   8  |    9   18   10   10   22    4    9    8    6   21    4 |    20   27   19   19   24   20   22   22   19   27    19
   9  |   13   12    8    7    8    3    8    7    7   21    3 |    25   33   26   25   22   27   33   29   26   37    26
  10  |    5   12    9    8    9    3   12    7    5   22    3 |    30   38   26   32   30   31   36   33   30   34    30
  11E |    9   13    9    9   17    3    8    6    5   19    3 |    26   27   23   27   30   25   28   28   27   31    25
  12  |   10   19    8   11   13    3   11    9   11   25    4 |    23   26   17   20   20   19   23   21   20   21    19
  13  |   14   14   13   11   11    5   12   11   13   21    5 |    20   31   20   32   24   26   30   27   27   37    24
  14  |    8   12   11   13   13    4   11   10    9   25    4 |    23   24   22   32   22   23   23   29   28   34    25
  15  |   13   14   14   14   11    5   15   20   15   23    5 |    26   25   19   23   17   22   25   25   20   26    21
  16  |   12   21    7   15   22    4   12   11   13   23    5 |    23   21   18   24   16   19   20   23   20   25    19
  17  |    8   18    8   11   22    5   11    9   12   18    4 |    28   34   31   33   27   31   31   33   33   35    30
  18  |    7   19   11   12    7    3   13   13    9   24    4 |    24   21   21   26   24   23   21   30   23   32    23
  19E |   17   16    8    9   16    7    9    8   13   19    4 |   104  100   99  102   97  100  101   99  102   96   100
  20  |    7   14   12   14   27    6   24    8   13   20    5 |    21   19   18   24   34   21   23   24   27   29    21
  21  |   11   14   10   13   14    2    9   10   11   28    4 |    22   24   18   24   23   18   21   22   20   27    18
  22  |    6   10   10    7    7    5    8   11   10   26    4 |    17   22   17   21   17   19   24   23   25   30    19
  23  |   11   25    9   14   15    4   13   12   10   23    5 |    24   28   20   30   22   24   25   28   24   32    23
  24E |    7   11   10   19   17    4    9    9   11   22    4 |    29   24   27   30   28   26   29   29   25   36    27
  25  |    5   12    7    5   10    2    9    6   10   20    3 |    22   27   21   18   22   19   23   20   20   26    20
  26  |    7   12    6    7   13    2    8    8    6   14    3 |    22   26   20   20   19   20   23   20   18   23    19
  27  |    7   14    8    7   19    4   11    7    4   18    3 |    47   49   48   49   40   49   49   49   48   57    47
  28  |   10   12    8   15   18    4   10   10   11   28    5 |    17   27   18   27   17   20   25   26   23   30    20
  29  |    8   25    7   10   17    4   18    9   12   21    5 |    24   24   25   27   22   26   26   27   30   31    24
  30E |   12   10   12   14   17    5   14    9   15   17    5 |    23   22   24   23   18   21   25   25   22   30    21
  31E |   12   14    7   10   22    4   11   10    8   21    4 |    31   34   30   32   36   31   32   35   35   40    32
  32  |    7   10   11   11    9    3    8    5    6   23    3 |    17   24   21   26   16   20   24   21   20   35    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    9   11   15    4   12    9   10   22      |T   31   32   27   31   28   31   34   31   30   36    31
 WRMS |    9   15   10   10   14    4   12    9    8   21      |NE  25   29   23   27   24   25   28   27   26   32    24
 MEDI |    8   13    9   10   13    4   11    9   10   21      |MD  23   27   21   26   22   23   25   26   25   31    23

Table 3.1953.4   GPS week: 1953   Day: 4   MJD: 57919.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   15    5    8    9    4   10    7    8   10    3 |    20   27   19   20   20   19   24   18   21   21    18
   2  |    8   11    6    8   17    3   12    8    9   16    3 |    16   23   14   16   17   15   21   15   16   14    14
   3  |    8   13    9    7    9    4   13    7    7    7    3 |    22   34   23   24   24   24   34   22   25   27    23
  X4E |    2  ---  ---  ---  ---   26   31  ---  ---  ---    0 |   102  ---  ---  ---  ---  111  105  ---  ---  ---   102
   5  |    9    9   10    7   11    3    9   12    7   21    4 |    14   23   16   14   15   16   23   19   17   29    15
   6  |    9    9    5    8   11    2   12   10    8   12    3 |   134  135  133  134  134  133  133  132  133  138   134
   7E |   14   13    4    7   33    5   14   10    9   13    5 |    69   65   66   66   66   66   66   65   63   61    65
   8  |   14   15    9   10   23    5   13    9    8    9    4 |    21   22   19   19   23   19   24   19   18   22    18
   9  |    6   10    7    7   10    4   10    5    8   10    3 |    23   28   22   20   17   21   29   21   20   24    21
  10  |    7   12    9    7    9    2   11    8    7   14    3 |    24   33   23   27   24   25   33   29   24   28    25
  11E |    9   12    7   10   15    4   14    7    6   10    3 |    30   28   22   24   31   24   28   26   26   29    26
  12  |   10   18    8   10   12    2   12   11    9   16    4 |    25   26   19   24   20   22   23   25   23   19    21
  13  |   13   14   11   11   10    4   12   12   11   19    4 |    22   30   20   28   21   24   30   27   26   20    22
  14  |    8   13   11   16   12    4   10   11   10   16    4 |    23   25   21   30   23   24   23   25   25   25    23
 X15  |    2  ---  ---  ---  ---   57  ---  ---  ---  ---    0 |   135  ---  ---  ---  ---   40  ---  ---  ---  ---   134
  16  |   12   21    6   18   23    4   14   13   11   30    6 |    24   23   20   31   19   23   23   27   24   25    21
  17  |   12   18    6   12   24    3   13    9   11   16    5 |    40   41   36   40   36   38   39   40   40   35    37
  18  |    9   20    9   10   10    3   11   11   10   21    4 |    29   27   26   25   29   27   28   30   30   33    28
  19  |   12   18    6    9   21    7   13    9   12   14    4 |    71   73   69   69   68   69   72   69   69   72    69
  20  |    8   12    9   17   10    5    7   13    8   17    4 |    22   19   20   23   24   21   20   24   22   24    19
  21  |   10   12   10    8   13    3   10   10   10   20    4 |    16   23   14   16   17   14   18   17   16   21    14
  22  |    6    8    9    9   10    5   10   11   10   12    3 |    12   19   14   19   18   16   22   19   19   27    15
  23  |   12   25    9   15   15    4   15   12   10   18    5 |    24   25   20   27   21   23   24   23   20   25    21
  24E |    9   13    9   14   13    5   11   10    6   13    4 |    26   25   26   27   27   25   26   28   25   27    25
  25  |    9   14    7   35   13    6   12    6    7   10    5 |    18   25   18   34   17   17   22   17   16   21    16
  26  |    9   12    5    8   13    4    7    8    6   16    3 |    23   28   21   24   20   21   26   20   21   22    21
  27  |   10   14    7    9   16    4   11    9    8   12    4 |   114  114  113  112  111  112  114  112  111  106   112
  28  |   11   14    9   13   16    3   11   13   14   17    5 |    19   27   18   26   16   21   24   26   24   24    20
  29  |    9   26    7   10   24    5   13   11   13   16    5 |    25   24   23   24   25   23   25   25   28   26    22
  30E |   11   14   12   13   30    5   32   13   19   15    6 |    34   35   33   35   39   33   45   35   37   38    33
  31E |    6   13    5   10   24    4   11   11    7   14    4 |    43   39   39   42   37   37   40   42   38   40    39
  32  |    5   11   10   11    9    3    7    7    6   15    3 |    19   24   20   24   17   19   24   19   20   31    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   15    8   12   17    4   13   10    9   16      |T   38   36   31   34   32   35   38   33   33   35    37
 WRMS |    9   15    8   10   15    4   13    9    8   17      |NE  34   34   28   32   29   30   33   31   30   33    33
 MEDI |    9   13    8   10   13    4   12   10    8   15      |MD  24   27   21   25   23   23   26   25   24   26    22

Table 3.1953.5   GPS week: 1953   Day: 5   MJD: 57920.000                            

        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   15    7    6   10    6   11    8    6   26    4 |    30   33   30   32   34   30   34   31   31   35    30
   2  |   12   13    6    9   23    5   13    9    7   21    4 |    27   30   24   22   28   23   30   22   23   24    23
   3  |   14   13   10    8    8    7   25    5    8   24    4 |    25   37   26   31   24   31   44   29   30   32    27
  X4E |    4  ---  ---  ---  ---   37   50  ---  ---  ---    0 |    98  ---  ---  ---  ---   94   98  ---  ---  ---    98
   5  |    8   10   10    8   13    3    9   10    8   17    3 |    30   30   27   28   26   28   30   30   30   35    28
   6  |   10   10    6    7   14    5   10   12    7   18    3 |    87   86   86   84   89   86   86   86   88   87    86
   7E |   27   17    5    7   17    5   13   10    5   16    5 |   104   98   96   97   98   96   96   97   98   94    97
   8  |   11   13    7   11   17    8   12    7    5   16    4 |    27   31   28   27   30   29   33   28   27   31    27
   9  |   17   11    7    7   10    5    8    8    8   21    4 |    30   33   30   29   27   30   35   31   29   35    29
  10  |   11   11    8    8   10    4   11    9    7   15    3 |    29   35   26   26   22   26   34   27   24   31    26
  11E |   11   14    7    9   13    8   10    7    4   22    3 |    34   31   25   29   36   29   32   29   27   34    29
  12  |   12   18    7   11   18    4   11   11   10   27    5 |    33   32   29   32   28   31   33   32   32   39    30
  13  |   15   14   10   11   14    5   15   12   10   22    4 |    27   31   25   30   22   29   35   30   34   38    28
  14  |   11   12   11   13   14    6    9   11    8   24    4 |    26   28   25   27   24   25   27   24   26   29    24
 X15  |   12  ---   13   12  ---    9  ---   19  ---  ---    8 |    21  ---   18   19  ---   19  ---   24  ---  ---    19
  16  |   20   26    5   17   19    5   12   13   10   22    6 |    28   26   28   35   29   29   30   34   33   37    30
  17  |   14   18    6   12   13    4   12   10    7   21    4 |    43   48   43   47   43   43   46   45   44   51    44
  18  |   10   19    8   10   13    2   13   12    7   21    4 |    20   23   21   18   21   19   21   22   18   29    19
  19  |   15   16    7   11   16    6   12   10    9   19    4 |    44   50   45   48   43   45   48   47   43   47    45
  20  |   10   11   10   14   13    4    7   11   10   21    4 |    42   35   38   37   36   35   37   37   39   38    37
  21  |   10   12    9   11   19    4    9   13    9   25    4 |    21   24   20   20   23   19   24   22   20   25    18
  22  |   10   10    9   10    8    7    8   11    9   25    4 |    32   33   30   36   31   33   35   33   35   35    31
  23  |   18   25    9   15   12    8   10   12   10   26    5 |    26   27   23   27   21   24   28   23   20   37    22
  24E |   13   11    9   11   15    6   10    8    7   23    4 |    22   35   22   26   27   23   25   24   25   35    23
  25  |   13   15    6    6   12    4   11   10    4   25    4 |    37   38   32   35   33   33   36   32   30   43    33
  26  |   13   12    7    9   13    4    9    7    7   19    3 |    35   35   34   33   35   34   37   33   33   45    34
  27  |   15   13    8   10   13    4   11   11    7   16    4 |    93   97   97   97   99   95   98   98  100  103    98
  28  |   18   13    7   15   14    5   11   10   12   23    5 |    21   28   21   27   19   21   25   26   23   23    22
  29  |   13   29    5   13   21    6   13   11   12   20    5 |    37   39   38   40   38   38   39   41   40   39    38
 X30E |   16  ---   11   13   15    5   26   14   19   21    6 |    42  ---   43   36   47   41   53   47   41   42    41
  31E |   11   13    8    7   18    7   12    9    5   19    4 |    89   84   85   87   93   85   86   84   87   90    86
  32  |   16    9   10    9    9    5    9    7    7   19    4 |    31   33   30   32   32   29   32   29   31   31    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   14   15    8   11   15    5   12   10    8   21      |T   40   41   36   38   38   39   43   38   38   43    39
 WRMS |   13   15    8   10   14    5   12    9    7   22      |NE  33   36   32   34   33   32   37   34   34   39    32
 MEDI |   12   13    8   10   13    5   11   10    7   21      |MD  30   33   29   32   30   30   35   31   31   35    30

Table 3.1953.6   GPS week: 1953   Day: 6   MJD: 57921.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    7   16    7    6    8    4   10   10    9   11    3 |    20   25   21   20   22   21   27   22   23   26    20
   2  |    8   11    7    8   17    3   12    9   10   17    4 |    21   23   19   19   18   18   24   19   22   19    17
   3  |    7   11   10    7    6    4   13    6   10    9    3 |    31   35   27   32   28   30   39   28   27   29    28
  X4E |    2  ---  ---  ---  ---   27   30  ---  ---  ---    0 |   132  ---  ---  ---  ---  136  128  ---  ---  ---   131
   5  |    7   15    8    7   10    4   11   11    9   15    3 |    22   26   22   18   20   20   26   20   22   29    20
   6  |    6   12    6    6   12    4   11   20    9   11    4 |   129  127  128  126  128  127  127  131  129  125   128
   7E |    9   12    5    9   23    5    9   10    8    9    4 |   133  132  133  134  134  132  131  132  132  134   132
   8  |   11   16    8   11   16    4    8    8    7    9    4 |    22   26   19   17   26   19   24   20   18   23    19
   9  |    7   11    8    7   12    3    9    8    5   10    3 |    22   29   24   23   20   22   28   24   21   27    22
  10  |    5   12   11    6   11    4   11   10    6   11    3 |    36   40   31   37   32   35   40   38   35   37    34
  11E |    9    9    7    8   14    3   10    8    6   10    3 |    27   30   22   26   30   24   28   25   27   26    25
  12  |    8   23    8   12   12    2   18   11   10   14    4 |    29   31   25   31   25   28   32   31   29   31    27
  13  |   10   16   11   12   12    3   14   13    9   16    4 |    25   35   22   32   24   26   32   31   28   31    26
  14  |    7    9   10   13   13    3    8   11   10   15    4 |    24   28   23   32   25   25   27   27   30   28    25
  15  |    8   14   13   12   10    5   15   20   10   17    5 |    21   17   17   18    8   21   18   24   10   20    19
  16  |   11   24    6   15   19    5   14   16   11   24    5 |    25   26   25   33   22   27   25   34   33   34    27
  17  |   12   19    8   12   10    5   15   12    8   15    4 |    36   42   37   39   38   36   39   39   37   39    36
  18  |    9   24   10   10   10    4   12   12    9   13    4 |    27   27   25   28   25   26   25   30   29   27    26
  19  |   11   18    5   10   14    4   12   10    8   13    4 |    55   59   54   55   51   54   55   55   52   52    53
  20  |   10   16   10   14   12    5   15   11    9   14    4 |    39   29   32   34   34   33   31   37   34   38    33
  21  |   10   16    9   14   17    5    9   16   11   20    5 |    18   26   20   26   19   21   21   25   23   23    18
  22  |    6    8    9    7    8    4    8   10    8   12    3 |    25   25   22   28   25   25   28   27   26   28    24
  23  |   13   23    8   15   13    5   13   15    9   16    5 |    27   26   24   32   22   26   25   26   26   30    24
 X24E |   14  ---   11   10   11    6   15   10    6   12    4 |    45  ---   42   43   44   41   47   41   38   41    41
  25  |    7   12    6    6    8    3    9   13    8    6    3 |    26   33   25   27   26   26   28   25   25   27    25
  26  |    8   11    8    8   13    5    8   10    7   12    3 |    27   33   28   27   29   27   29   27   26   28    26
  27  |   10   16    9    8   14    4    9   10    9    9    4 |   110  111  113  112  111  111  113  113  113  113   112
  28  |   14   15    9   12   11    6   13   12   11   18    4 |    20   25   20   24   17   20   24   25   22   23    19
  29  |    8   24    6   13   20    5   16   13    9   13    5 |    34   34   34   36   29   34   36   39   35   40    34
  30E |   10   21   11   13   12    4   14    8   20   13    5 |    55   59   54   54   55   56   58   57   56   59    54
  31E |   15   11    5    9   16    4    8    8    8   11    4 |   124  126  123  126  125  122  123  123  124  124   123
  32  |    7    9   10    9    8    4    7    8    6   12    3 |    26   33   27   29   28   26   31   27   26   34    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   16    8   10   13    4   12   12    9   14      |T   44   43   39   42   40   43   45   42   41   43    42
 WRMS |    9   16    8    9   14    4   12   12    8   14      |NE  33   36   32   35   31   33   35   35   33   36    32
 MEDI |    8   15    8   10   12    4   11   10    9   13      |MD  27   30   25   32   26   26   29   28   28   30    26



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 4.1953   GPS week: 1953   MJD: 57915.0-57921.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3057 |U    8     7    18 |U    6     8    20 |U    8     7    19 |
emr | emr 2920 |U    7    10    16 |U    7     8    25 |U    9    11    22 |
esa | esa 2962 |     6     7    17 |U    6     7    23 |     8     7    19 |
gfz | gfz 2946 |U    6     7    18 |U    8     9    26 |U    8     9    21 |
grg | grg 2943 |U    7     7    18 |U    7    10    26 |     9    10    22 |
igr | igr 2957 |     6     7    17 |     6     7    21 |     8     7    19 |
igs | igs 2961 |     5     7    17 |     6     8    21 |     8     7    19 |
jpl | jpl 3044 |     8     7    18 |     8    11    25 |U    9     8    21 |
mit | mit 2962 |     6     7    20 |U    7    10    26 |U    9    11    23 |



Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit 
         positions and satellite clock corrections at 15 min intervals.

         Each line gives the daily station RMS w.r.t. the estimated coordinates 
         for the Latitude, Longitude and Height components.
        
         CLK  - Satellite clocks used.
         EPO  - Number of satellite clock epochs available for that day.
         Units: mm.

Table 5.1953.0   GPS week: 1953   Day: 0   MJD: 57915.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     8     8    21 |     8    11    28 |     6     5    17 |
emr | emr 2976 |     8    12    21 |     8    11    29 |    10    25    30 |
esa | esa 2976 |     7    11    20 |     8    11    29 |     6     5    18 |
gfz | gfz 2974 |     7    10    20 |     9    10    29 |     6     5    17 |
grg | grg 2974 |     8    11    20 |     9    10    29 |    13    15    28 |
igr | igr 2976 |     8    12    21 |     8    10    29 |     6     5    17 |
igs | igs 2976 |     8    11    20 |     8    10    29 |     6     5    17 |
jpl | jpl 3072 |     9     9    24 |     9    11    30 |     7     6    20 |
mit | mit 2976 |     8    10    21 |     9    13    32 |    10    24    30 |

Table 5.1953.1   GPS week: 1953   Day: 1   MJD: 57916.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     9     5    17 |     6     6    16 |    10    11    24 |
emr | emr 2976 |     6     8    16 |     9     7    25 |    12    11    25 |
esa | esa 2976 |     6     4    18 |     7     7    17 |    11    11    23 |
gfz | gfz 2976 |     6     3    17 |     6     7    19 |    11    13    25 |
grg | grg 2976 |     7     5    18 |     6     6    18 |    11    13    24 |
igr | igr 2952 |     7     4    17 |     6     7    16 |    11    11    23 |
igs | igs 2976 |     6     4    17 |     6     8    17 |    11    11    23 |
jpl | jpl 3072 |     8     5    18 |    11    13    18 |    11    11    23 |
mit | mit 2976 |     6     4    18 |     8     8    27 |    10    11    23 |

Table 5.1953.2   GPS week: 1953   Day: 2   MJD: 57917.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3066 |     7     7    19 |     6     7    23 |     7     9    19 |
emr | emr 2970 |     7    11    17 |     7     8    29 |     9     7    19 |
esa | esa 2976 |     4     7    17 |     5     6    25 |     7     8    17 |
gfz | gfz 2874 |     4     8    20 |     6     7    25 |     9    10    23 |
grg | grg 2961 |     5     8    20 |     6     8    33 |     8     9    22 |
igr | igr 2970 |     5     8    18 |     5     6    24 |     7     9    18 |
igs | igs 2970 |     4     7    18 |     6     7    26 |     7     8    19 |
jpl | jpl 3072 |     7     7    18 |     6     7    28 |     9     9    21 |
mit | mit 2976 |     7     9    24 |     7     8    31 |    10     9    26 |

Table 5.1953.3   GPS week: 1953   Day: 3   MJD: 57918.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     5    17 |    10    11    28 |     8     7    20 |
emr | emr 2976 |     7    10    14 |     9    12    34 |     9     8    19 |
esa | esa 2976 |     6     6    15 |     9    10    33 |     8     9    22 |
gfz | gfz 2975 |     6     6    15 |    10    10    32 |     8     9    21 |
grg | grg 2976 |     6     6    17 |    10     9    32 |     9     9    20 |
igr | igr 2976 |     5     6    13 |     9    10    30 |     9     8    21 |
igs | igs 2976 |     5     5    14 |     9    10    29 |     8     9    20 |
jpl | jpl 3072 |     9     7    15 |    10    12    30 |    10     9    22 |
mit | mit 2976 |     7     7    17 |     9    11    35 |     9     9    22 |

Table 5.1953.4   GPS week: 1953   Day: 4   MJD: 57919.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2975 |     8     9    24 |     5     8    15 |     7     8    17 |
emr | emr 2880 |     9    12    18 |     6    10    19 |     8     6    19 |
esa | esa 2880 |     7     9    25 |     6     7    19 |     8     7    20 |
gfz | gfz 2879 |     7     9    26 |     7    13    23 |     7     8    20 |
grg | grg 2880 |     9     7    21 |     9    15    34 |     6     7    19 |
igr | igr 2880 |     7    10    25 |     6     8    20 |     7     8    17 |
igs | igs 2880 |     6     9    24 |     5     8    16 |     7     7    17 |
jpl | jpl 2976 |     8    10    22 |     6    12    20 |     6     5    17 |
mit | mit 2880 |     7     9    25 |     6    13    17 |     7     8    17 |

Table 5.1953.5   GPS week: 1953   Day: 5   MJD: 57920.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |     8     5    11 |     3     7    15 |     8     6    22 |
emr | emr 2784 |     7     7    14 |     5     6    18 |    10     7    20 |
esa | esa 2976 |     4     4    11 |     5     6    18 |     9     6    21 |
gfz | gfz 2974 |     5     4    13 |    15    14    36 |    10     8    26 |
grg | grg 2867 |     6     5    11 |     7    16    23 |     9     7    24 |
igr | igr 2976 |     5     4    12 |     4     6    16 |     9     5    20 |
igs | igs 2976 |     4     4    11 |     4     6    15 |     8     6    21 |
jpl | jpl 2976 |    10     7    14 |     5     9    21 |    11     7    26 |
mit | mit 2976 |     5     5    14 |     4     8    21 |     9     8    23 |

Table 5.1953.6   GPS week: 1953   Day: 6   MJD: 57921.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     8     9    19 |     4     5    14 |     8     6    15 |
emr | emr 2880 |     6    10    15 |     5     5    20 |     8    10    22 |
esa | esa 2976 |     5     6    15 |     4     5    18 |     8     5    14 |
gfz | gfz 2973 |     5     7    16 |     5     5    16 |     8     9    19 |
grg | grg 2969 |     6     6    16 |     4     6    17 |    10     7    18 |
igr | igr 2971 |     5     6    15 |     4     5    15 |     7     6    14 |
igs | igs 2976 |     5     6    15 |     4     5    15 |     7     6    14 |
jpl | jpl 3072 |     6     6    15 |    11    12    29 |     9     5    15 |
mit | mit 2976 |     5     7    18 |     5     7    17 |     9     8    17 |


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 6.1953   GPS week: 1953   MJD: 57915.500-57921.500

                                                         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      -4       1      52      0 |       8     16
            |      14      17     105      69      4 |       2
emr   uuuuu |      40     -12      33     266      9 |      35     38
            |      25      21     132     127     11 |       3
esa   uuuuu |       1       3     -55       5     -6 |      13     19
            |       9      13      39      54      2 |       3
gfz   uuuuu |      10       6      94      91     -8 |      16     22
            |      23      23     127      74      4 |       3
grg   uuuuu |      10     -16     100     -81      4 |      -2     14
            |      14       9      48      70      4 |       1
igr   xxxxx |       0     -29      78       1     -5 |      -4     14
            |       6       7      49      40      4 |       3
irf   xxxxx |     -12     -17     -22     -60      3 |      -1     15
            |       6      10      37      28      3 |       2
jpl   xxxxx |      18     -17     122      83    -11 |      24     31
            |      25      19      65      93     10 |       2
mit   uuuuu |     -37      -1     -66    -162      5 |      25     29
            |      12      16      75      63      2 |       2
ngs   uuuuu |     -16       3      25     -75      2 |      17     22
            |      27      21     163      75      6 |       2
sio   uuuux |      26      27    -150      46     -2 |      57     59
            |       2       2      64      67     10 |       1


Table 7.1953.0   GPS week: 1953   Day: 0   MJD: 57915.500

                                                         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 |      30       2     -15      32     -7 |      11     17
emr   uuuuu |       0      22     -67     110      0 |      35     38
esa   uuuuu |       8     -17     -21      71     -9 |      18     21
gfz   uuuuu |      -3       5      29     100     -6 |      20     25
grg   uuuuu |     -13      -2     134    -144      4 |      -2     13
igr   xxxxx |       2     -33      91     -17     -8 |       1     12
irf   xxxxx |     -12      -8     -20     -81      5 |      -2     14
jpl   xxxxx |     -14      -6      81     -28    -20 |      27     31
mit   uuuuu |     -38     -10    -109    -204      8 |      24     28
ngs   uuuuu |     -12      -7     172       4      8 |      15     20
sio   uuuux |      28      26    -154     -20    -11 |      58     60

Table 7.1953.1   GPS week: 1953   Day: 1   MJD: 57916.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       7     -29     115     106      1 |       9     16
emr   uuuuu |      61       5      62     188     -8 |      35     38
esa   uuuuu |     -10     -14    -105      61     -7 |      16     20
gfz   uuuuu |     -29      32     -55      62    -12 |      19     24
grg   uuuuu |       9     -11      23    -177      5 |      -1     13
igr   xxxxx |       7     -26      71      50     -9 |      -1     12
irf   xxxxx |     -18     -11     -44     -99      2 |      -1     14
jpl   xxxxx |      17     -41     119      17    -26 |      26     31
mit   uuuuu |     -56      22     -79    -257      3 |      25     28
ngs   uuuuu |      33     -12     158     -30      4 |      16     20
sio   uuuux |      25      25     -85      43     -3 |      57     59

Table 7.1953.2   GPS week: 1953   Day: 2   MJD: 57917.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       9     -18      87      62      2 |       7     14
emr   uuuuu |      69     -28     -40     178      4 |      32     35
esa   uuuuu |     -10       9     -52     -79     -6 |      14     18
gfz   uuuuu |      17      35      12     139     -3 |      16     22
grg   uuuuu |      20     -13     142    -134     -4 |      -3     13
igr   xxxxx |     -10     -27     116     -47      0 |      -4     13
irf   xxxxx |     -15     -19     -43     -75      5 |      -3     14
jpl   xxxxx |      25       7      71      51    -12 |      23     30
mit   uuuuu |     -44       7     -98    -148      5 |      23     27
ngs   uuuuu |     -27     -28     181     -23     11 |      15     20
sio   uuuux |      25      30    -212     114      9 |      56     57

Table 7.1953.3   GPS week: 1953   Day: 3   MJD: 57918.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      25      19     -92      -4     -5 |       7     14
emr   uuuuu |      44      -3     108     302     16 |      31     34
esa   uuuuu |      12      12     -95     -41     -7 |      12     17
gfz   uuuuu |      14      -1      98      19     -3 |      15     21
grg   uuuuu |      -1     -28      87     -45      7 |      -3     13
igr   xxxxx |       2     -32     150      -4      0 |      -5     12
irf   xxxxx |     -16     -21     -24     -27      6 |      -3     14
jpl   xxxxx |      67     -42     195      91     -6 |      22     29
mit   uuuuu |     -33     -14     -44     -72      6 |      23     27
ngs   uuuuu |     -38       1      65     -29     -2 |      16     21

Table 7.1953.4   GPS week: 1953   Day: 4   MJD: 57919.500

                                                         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       9     -66      39      3 |       7     14
emr   uuuuu |      43     -34     252     253     22 |      35     38
esa   uuuuu |       7      16     -64      -4     -9 |      13     17
gfz   uuuuu |      42     -15     302     186     -9 |      15     21
grg   uuuuu |      27     -26     118      10      3 |      -1     14
igr   xxxxx |       5     -35      52     -44     -5 |      -4     13
irf   xxxxx |       0     -34     -11     -23      0 |       0     14
jpl   xxxxx |       8     -17      27      41      4 |      24     30
mit   uuuuu |     -16     -16     -86    -125      2 |      26     29
ngs   uuuuu |     -49      25    -182    -193      1 |      19     23

Table 7.1953.5   GPS week: 1953   Day: 5   MJD: 57920.500

                                                         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 |      15       3    -138     169      1 |       9     16
emr   uuuuu |      13     -17      64     337     19 |      39     43
esa   uuuuu |      -3      10     -55      -3     -4 |      13     17
gfz   uuuuu |      27     -26     228     147     -9 |      15     21
grg   uuuuu |      21     -19     143     -48      5 |       1     15
igr   xxxxx |      -5     -37      70      29     -8 |      -4     13
irf   xxxxx |      -7     -25      53     -64     -1 |       3     15
jpl   xxxxx |      12       0     179     166     -2 |      25     32
mit   uuuuu |     -36     -13      92    -205      4 |      28     32
ngs   uuuuu |     -12      34    -196    -154     -5 |      21     24

Table 7.1953.6   GPS week: 1953   Day: 6   MJD: 57921.500

                                                         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 |      -2     -13     113     -40      2 |       6     18
emr   uuuuu |      49     -29    -149     494     13 |      37     42
esa   uuuuu |       1       3       7      32     -3 |       8     18
gfz   uuuuu |       5      13      46     -18    -15 |      11     23
grg   uuuuu |       7     -13      50     -28      7 |      -2     17
igr   xxxxx |      -2     -17      -5      43     -5 |      -8     20
irf   xxxxx |     -15      -5     -64     -51      3 |       0     18
jpl   xxxxx |      15     -21     181     244    -13 |      21     31
mit   uuuuu |     -32      18    -135    -125      5 |      25     31
ngs   uuuuu |      -5       4     -26    -101     -4 |      17     25



More information about the IGSREPORT mailing list