[IGSREPORT-26731] Wk 2063 IGS Final Orbits

acc acc at igs.org
Thu Aug 8 22:17:34 PDT 2019


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2063   (Jul 21, 2019 - Jul 27, 2019)

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:

igs2063[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2063[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2063[0-6].cls  IGS GPS clock combination summary report.
igs20637.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20637.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   | 18 16 18 TIXI ULAB WES2 TIXI ULAB WES2
                0  |  EMR   | 18
                0  |  ESA   | AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                0  |  ESA   | HERS HOB2 IISC KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS
                0  |  ESA   | NAUR NNOR ONSA POHN PTBB TONG TOW2 VILL AREG CEDU
                0  |  ESA   | COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2
                0  |  ESA   | IISC KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR
                0  |  ESA   | ONSA POHN PTBB TONG TOW2 VILL
                0  |  GFZ   | 18 POHN REYK POHN REYK
                0  |  JPL   | SUWN SUWN
                1  |  COD   | LHAZ TIXI GMSD LHAZ NYAL TIXI TSKB
                1  |  EMR   | NLIB PTBB
                1  |  ESA   | 18 18 AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ
                1  |  ESA   | HARB HERS HOB2 KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS
                1  |  ESA   | NAUR NNOR ONSA POHN PTBB TONG TOW2 VILL AREG CEDU
                1  |  ESA   | COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2
                1  |  ESA   | KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA
                1  |  ESA   | POHN PTBB TONG TOW2 VILL
                1  |  GFZ   | POHN POHN
                1  |  GRG   | ALIC
                1  |  JPL   | ALIC NTUS ALIC NTUS
                1  |  MIT   | 18
                2  |  COD   | 18 18 LHAZ LHAZ
                2  |  EMR   | 18 18
                2  |  ESA   | 18 18 AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ
                2  |  ESA   | HARB HERS HOB2 KIRU KOUR LAUT MAJU MAR6 MAS1 MAW1
                2  |  ESA   | MGUE MOBS NAUR NNOR ONSA POHN TOW2 VILL AREG CEDU
                2  |  ESA   | COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2
                2  |  ESA   | KIRU KOUR LAUT MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR
                2  |  ESA   | NNOR ONSA POHN TOW2 VILL
                2  |  GFZ   | POHN FLRS POHN
                2  |  GRG   | 3 10 3 10 LHAZ LHAZ
                2  |  MIT   | 18 SUTH SUTH
                3  |  COD   | 18 18 NRMD TIXI NRMD TIXI
                3  |  EMR   | 8 6 8 18 ALGO
                3  |  ESA   | CEDU COCO DARW DAV1 DGAR FAA1 FALK HARB HERS HOB2
                3  |  ESA   | KIRU KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR
                3  |  ESA   | ONSA POHN PTBB TOW2 VILL CEDU COCO DARW DAV1 DGAR
                3  |  ESA   | FAA1 FALK HARB HERS HOB2 KIRU KOUR MAJU MAR6 MAS1
                3  |  ESA   | MAW1 MGUE MOBS NAUR NNOR ONSA POHN PTBB TOW2 VILL
                3  |  GFZ   | 18 18 ALGO GODE IISC POHN BARH GODE IISC POHN
                3  |  GRG   | DAV1 DAV1 OHI3
                3  |  JPL   | 18 DAV1 DAV1
                3  |  MIT   | IISC IISC
                4  |  COD   | ANKR ANKR REUN
                4  |  EMR   | 18
                4  |  ESA   | 18 18 CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                4  |  ESA   | HERS HOB2 KIRU KOUR MAJU MAR6 MAS1 MAW1 MGUE MOBS
                4  |  ESA   | NAUR NNOR NRIL ONSA POHN TOW2 VILL CEDU COCO DARW
                4  |  ESA   | DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2 KIRU KOUR
                4  |  ESA   | MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA POHN
                4  |  ESA   | TOW2 VILL
                4  |  GFZ   | IRKJ POHN IRKJ POHN
                4  |  GRG   | 21 21 IRKJ NRMD IRKJ NRIL NRMD
                4  |  MIT   | ANKR
                5  |  COD   | 21 21 TIXI TIXI
                5  |  EMR   | PTBB
                5  |  ESA   | 18 18 ANKR CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB
                5  |  ESA   | HERS HOB2 KIRU KOUR LAUT MAJU MAR6 MAS1 MAW1 MGUE
                5  |  ESA   | MOBS NAUR NNOR ONSA POHN PTBB TOW2 VILL ANKR CEDU
                5  |  ESA   | COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2 KIRU
                5  |  ESA   | KOUR LAUT MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR
                5  |  ESA   | ONSA POHN PTBB TOW2 VILL
                5  |  GFZ   | 21 21 DGAR KRGG POHN DGAR KRGG POHN
                5  |  GRG   | 18 ALIC SAMO
                5  |  JPL   | 18 21
                6  |  COD   | 18 18 ANKR TIXI ANKR TIXI
                6  |  EMR   | KOKB TWTF
                6  |  ESA   | 18 18 CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                6  |  ESA   | HERS HOB2 KIRU KOUR LAUT LPGS MAJU MAR6 MAS1 MAW1
                6  |  ESA   | MDVJ MGUE MOBS NAUR NNOR ONSA POHN PTBB TOW2 VILL
                6  |  ESA   | WTZR CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                6  |  ESA   | HERS HOB2 KIRU KOUR LAUT LPGS MAJU MAR6 MAS1 MAW1
                6  |  ESA   | MDVJ MGUE MOBS NAUR NNOR ONSA POHN PTBB TOW2 VILL
                6  |  GFZ   | POHN GOLD POHN WTZR
                6  |  GRG   | 18 18 SAMO
                6  |  JPL   | 18
                6  |  MIT   | 18

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                1  |  GFZ   | ~00:30 | ~ 0.26 ns

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

 7. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                0  |  COD   |   4
                0  |  GFZ   |  26
                1  |  COD   |   4
                2  |  ESA   |   4
                2  |  GRG   |   3  10
                2  |  JPL   |   3
                3  |  ESA   |   4
                4  |  ESA   |   4
                5  |  ESA   |   4
                6  |  ESA   |   4  18

 8. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G03 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |
           PRN G04 |  4 |  4 |    |    |    |    |    |
           PRN G10 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |
           PRN G20 |    |    |    |  4 |    |    |    |

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

10. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .2     .0     .9      23     11      3    -.60
       EMR  |   0 |   -1.3   -4.7   -1.6     -15     52     17    -.34
       ESA  |   0 |     .3   -1.2    -.6       6     40     61    -.59
       GFZ  |   0 |    -.1     .5     .6      45     21     10    -.55
       GRG  |   0 |     .0   -2.9    -.5     127     26    145    -.24
       JPL  |   0 |    1.1   -6.8    3.9       4     10     -2    -.42
       MIT  |   0 |    2.4   -9.2    6.0       8     89     -4    -.09
       NGS  |   0 |   -7.5   -5.8   -1.4     -34    103    -47    -.37
       SIO  |   0 |   -3.2   -7.2    5.5      -9     19    -17    -.29

       COD  |   1 |     .5    -.2    1.2       8     22     12    -.43
       EMR  |   1 |    2.3   -5.8    3.3     -46     52      2    -.21
       ESA  |   1 |    1.1   -1.0    -.7      -3     37     36    -.48
       GFZ  |   1 |    -.4     .6     .8      50     19     16    -.39
       GRG  |   1 |   -2.5   -3.4   -5.0     109     -9    122    -.36
       JPL  |   1 |    3.6  -15.3    8.3      26     -2     -8    -.74
       MIT  |   1 |     .0   -8.4    5.8     -26     84     -7    -.13
       NGS  |   1 |   -5.7  -11.6    6.4     -72     82    -28    -.28
       SIO  |   1 |   -1.4   -8.0     .7     -39      9      4    -.11

       COD  |   2 |     .3     .3    1.1      14     17     -7    -.41
       EMR  |   2 |    -.2   -6.6    7.2     -24     78      7    -.16
       ESA  |   2 |     .9   -1.6     .0      10     59     27    -.65
       GFZ  |   2 |    -.4     .9     .4      53     19     14    -.45
       GRG  |   2 |   -4.8  -15.9   -6.7     153     35    128    -.53
       JPL  |   2 |    -.8  -14.0    5.4      -7     17      9    -.34
       MIT  |   2 |   -5.8   -5.2    5.9     -26    109      6    -.29
       NGS  |   2 |   -5.3  -16.9   14.2    -122     78    -35    -.33
       SIO  |   2 |  -16.7    -.9    7.7     -15      9     -8    -.28

       COD  |   3 |     .6    -.5    1.4      22     10     23    -.43
       EMR  |   3 |    -.4     .2    3.7     -15     74    -18    -.20
       ESA  |   3 |    1.1   -1.5    -.6       3     27     24    -.65
       GFZ  |   3 |    -.1     .7    1.1      54     28     29    -.48
       GRG  |   3 |     .5   -3.7   -6.9     136     -8    146    -.46
       JPL  |   3 |    3.8   -4.9    5.4      10     11    -31    -.63
       MIT  |   3 |   -4.7   -3.1    4.9     -21     53    -26    -.22
       NGS  |   3 |   -7.0   -5.1   -1.7     -32     63    -16    -.36
       SIO  |   3 |   -4.5   -2.3    4.0     -29    -11      4    -.21

       COD  |   4 |     .3     .5    1.3      29     23     -6    -.59
       EMR  |   4 |    -.8    7.1    1.8     -12     76    -24    -.25
       ESA  |   4 |     .2    -.7    -.7      18     33     50    -.67
       GFZ  |   4 |     .2    1.1    1.0      56     17     12    -.51
       GRG  |   4 |    2.1   -1.8   -3.3     135     21    131    -.43
       JPL  |   4 |    1.2   -4.9     .6      11      2    -12    -.83
       MIT  |   4 |   -2.6   -1.2    5.2     -11     67    -25    -.33
       NGS  |   4 |    1.2   -1.9    7.0      -1     44     -9    -.40
       SIO  |   4 |   -6.8   -2.1    8.9     -18      0    -18    -.48

       COD  |   5 |     .2     .1    1.6      20     22    -12    -.56
       EMR  |   5 |    7.3   -3.8    1.4     -21     73    -13    -.23
       ESA  |   5 |    -.1    -.9   -1.0       7     48     38    -.80
       GFZ  |   5 |    -.1     .9    1.0      44     19     12    -.54
       GRG  |   5 |    3.5   -3.6   -4.9     118      1    142    -.44
       JPL  |   5 |    4.2   -6.8   -3.5       8     10     -8    -.65
       MIT  |   5 |    1.2   -4.9    4.7     -24     79    -26    -.32
       NGS  |   5 |    1.5   -4.4   -1.8     -15     36    -28    -.41
       SIO  |   5 |     .1   -6.6    8.1     -23     13     -4    -.33

       COD  |   6 |     .4     .2    1.4      19     19     -8    -.68
       EMR  |   6 |    2.4   -2.7    1.9     -21     61    -28    -.29
       ESA  |   6 |    -.5   -1.2    -.6      13     55     26    -.81
       GFZ  |   6 |    -.1     .8    1.3      46     25     25    -.55
       GRG  |   6 |    1.3   -3.4  -10.7     109     19    132    -.43
       JPL  |   6 |     .6   -9.5   -2.7       0      0      1    -.59
       MIT  |   6 |   -1.1   -5.7    4.5     -14     56    -35    -.43
       NGS  |   6 |    -.4  -13.6    5.1     -64     53      7    -.33
       SIO  |   6 |   -4.4   -6.8    7.9     -19     16     -7    -.31


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

12. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    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 1.2063.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2063.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 2.2063.[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 3.2063.[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 5.2063.0-6). 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 2063 summary.                       (Jul 21, 2019 - Jul 27, 2019)

Table 1.2063.a   GPS week: 2063   MJD: 58685.000-58691.000

         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  247|    0     0    -2    18    12    -9  -.01    9    9 |    -709     120      7     94
        |    0     0     2    16    19    15   .03           |     213     273
emr   80|   -1    -1     3   -11     4    36   .14   12   11 |  171999     109     14     98
        |    1     1     1     9    14    13   .01           |   14917     696
esa  150|   -1     0    -1    -6     0    -6  -.14   15   10 |    1896     196      8    124
        |    0     0     1     5     8    18   .04           |    2633    1245
gfz  183|    0     0     1    -9     0   -11   .05   12   10 |      27    -150     12    203
        |    0     0     3    19     9    24   .03           |     415     681
grg  101|    3     0    -6   -13     5    25  -.08   18   11 |     -10      -7     11    141
        |    0     0     3     6    17    14   .02           |     268     381
igr  n/a|    0     1     0   -23   -39    -7  -.05    4    4 |  -15361     214     12     77
        |    0     0     0     7     8    11   .01           |    1215     771
jpl   80|    0     0     1     7   -17    20   .12    7    7 |  213179     101      9     88
        |    0     0     1    14    12    28   .02           |     758     761
mit  348|    0    -1     4    -9     0    10  -.06   15   13 |    -420      52     72   1635
        |    0     0     0    16    22    14   .01           |     193     256
ngs  212|    0     0     0    19     7   -29  -.08    8    7 |   17863  -98785   1075   2138
        |    0     0     2    22    14    20   .02           |   48979  261317
sio  319|    0    -1     1   -28   -13    -9  -.06   17   16 |     ---     ---    ---    ---
        |    0     1     3    23    22    60   .06           |     ---     ---


Table 1.2063.b   GPS week : 2063   MJD: 58685.000-58691.000   

         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    4    4    4    3    3    3 |
   2  |    4    4    4    4    3    3    4 |
   3  |    3    4   14    4    4    4    4 |
   4  |    0    0    0    0    0    0    0 |
   5  |    4    4    4    4    4    3    4 |
   6  |    4    4    4    4    4    4    4 |
   7  |    4    4    4    4    4    4    4 |
   8  |    3    4    4   13    3    3    3 |
   9  |    3    3    3    3    3    3    3 |
  10  |    4    4   13    4    5    4    4 |
  11  |    3    4    4    4    4    4    3 |
  12  |    5    4    4    5    4    4    4 |
  13  |    3    3    3    3    3    3    3 |
  14  |    3    4    4    3    4    4    4 |
  15  |    3    4    4    4    3    3    3 |
  16  |    6    5    5    5    4    4    4 |
  17  |    3    4    4    4    4    4    3 |
  18  |    3    4    4    4    3    3    3 |
  19  |    4    4    5    5    4    4    4 |
  20  |    4    4    7    0    5    4    3 |
  21  |    4    4    4    4    4    3    4 |
  22  |    4    3    5    3    4    3    3 |
  23  |    4    4    4    4    4    4    4 |
  24  |    3    3    4    4    4    3    3 |
  25  |    6    4    4    5    4    4    4 |
  26  |    5    7    6    5    5   11    7 |
  27  |    3    9    4    3    4    3    3 |
  28  |    3    4    4    4    4    3    4 |
  29  |    4    4    4    4    4    4    4 |
  30  |    2    3    3    3    3    3    3 |
  31  |    3    4    4    3    3    3    3 |
  32  |    3    3    4    4    3    3    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 2.2063.0   GPS week: 2063   Day: 0   MJD: 58685.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  251|    1     0     0    26    -1   -13   .00    9    8 |    -613     -95      7     79
emr   80|   -4    -3     0     4     8    27   .12   12   12 |  176990     167     15     78
esa  150|    0     0    -3    -1    -4     3  -.14    9    9 |    3338     603      9    132
gfz  183|    0     0     4    22    -1   -40   .03   15   12 |     425    -609     12    260
grg  101|    3     0    -1    -5    11    24  -.09   13   11 |     267    -240     13    156
igr  n/a|    0     0     0   -16   -41   -19  -.05    4    3 |  -16852     239     12     89
jpl   80|    0     0     0    -5   -13    45   .16    7    7 |  212480     165      9    105
mit  349|    1     0     4     1    -8    34  -.06   14   13 |    -358     176     73   1772
ngs  211|    0     0    -2   -23    23   -57  -.05    7    6 |    -602    -133    988   2234
sio  315|    0    -2     2   -11   -39     5  -.06   15   15 |     ---     ---    ---    ---

Table 2.2063.1   GPS week: 2063   Day: 1   MJD: 58686.000                            

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  227|    1     0    -4    -4   -12   -14  -.02   10   10 |    -618      15      7    109
emr   80|   -3    -3     1   -19    -3    10   .13   11   11 |  138209   -1295     16     93
esa  150|   -1     0    -2   -14    -6   -27  -.15   10   10 |    4185   -1911      8    120
gfz  185|    0     2     3   -23    -5   -12   .06   12   11 |     623   -1272     12    195
grg  101|    3     0    -4   -14   -18    36  -.08   13   11 |     349    -650     10    136
igr  n/a|    0     2     0   -28   -32   -20  -.03    4    4 |  -16264    -993     13     76
jpl   80|    0     0     1    36   -11    31   .12    7    7 |  212892   -1255     10     71
mit  348|    0     0     3   -12    33     6  -.07   15   14 |    -185    -386     79   1693
ngs  210|    0     1     2    14    10   -32  -.11    8    7 |    -596     -27   1241   1941
sio  320|    0    -3     0    -1    15    76  -.08   18   18 |     ---     ---    ---    ---

Table 2.2063.2   GPS week: 2063   Day: 2   MJD: 58687.000                            

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  228|    0     0    -5    38    26   -24  -.07   11   10 |    -613      91      9    102
emr   80|    0    -2     1    -4    -1    41   .15   15   12 |  176392     827     16    119
esa  150|   -2     0     1    -8    12   -16  -.20   12   11 |   -1789     372     10    133
gfz  184|    1     1     5   -18     6   -48  -.01   14   12 |    -368      19     13    187
grg  101|    1     0   -11   -12    31    24  -.10   55   12 |    -291      33     13    143
igr  n/a|    0     1     0   -23   -50   -17  -.06    6    5 |  -16661    1341     14     84
jpl   80|    0     0     2    -3   -23    56   .14   10   10 |  212125    1082     11     87
mit  348|    0     0     3   -16     7    17  -.05   15   13 |    -409    -166     68   1564
ngs  212|    0     0     2    35   -22   -46  -.05   10    8 |    -383    -240   1185   2065
sio  322|    0     0    -4   -40   -15    10   .05   23   21 |     ---     ---    ---    ---

Table 2.2063.3   GPS week: 2063   Day: 3   MJD: 58688.000                            

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  257|    0     0     1    35    42   -25   .00    9    9 |    -455    -106      7     90
emr   80|   -1    -1     3   -22    31    36   .16   11   11 |  177925     598     14    102
esa  150|   -1     0    -1    -9    10   -30  -.17   11   10 |   -2020    1953     11    133
gfz  183|    0     0     0    -2    16    -1   .04   10   11 |    -115     334     11    183
grg  102|    3     0   -10   -24    -5    23  -.09   12   10 |     -65     268     12    130
igr  n/a|    0     0     0   -36   -31    -3  -.06    4    4 |  -14822     908     11     66
jpl   80|    0     0     3    12   -37    26   .13    7    7 |  213577     705      9     92
mit  349|    0    -1     4   -38   -30    13  -.06   16   15 |    -287     183     76   1552
ngs  211|    0     0    -2    24     2    -4  -.11    9    8 |  128937 -691397    953   2026
sio  319|    0    -1     2   -67   -30   -56  -.05   18   18 |     ---     ---    ---    ---

Table 2.2063.4   GPS week: 2063   Day: 4   MJD: 58689.000                            

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  256|    0     0    -2    15    -1     0   .01    8    8 |    -693     130      6     93
emr   80|   -2     0     2    -7     8    43   .15   12   12 |  178451     -83     13     95
esa  150|    0     0    -1    -1    -3    12  -.12    9    9 |    3364     -89      8    118
gfz  184|    0     0     2   -33   -11     5   .05   10    9 |     238    -133     14    200
grg  103|    3     1    -3   -10    16    -3  -.06   11   10 |     148      -4     10    151
igr  n/a|    0     0     0   -23   -30    11  -.04    4    4 |  -13870    -300     11     69
jpl   80|   -1     0     0    -3   -22   -15   .11    7    7 |  214262    -341      9     80
mit  349|    0     0     3     1    22    14  -.05   14   13 |    -450     213     62   1721
ngs  214|    0    -1     1    41    16    -4  -.08    9    7 |    -704      40   1020   2106
sio  321|    0    -1     2   -27    18    -7  -.04   16   15 |     ---     ---    ---    ---

Table 2.2063.5   GPS week: 2063   Day: 5   MJD: 58690.000                            

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  257|    0     1    -1    17    11    -7   .00    8    7 |   -1104     703      8    101
emr   80|    0    -2     4   -17     4    43   .13   11   11 |  178274      59     14     98
esa  150|   -1     0    -1    -1     3     7  -.10    9    9 |    2694    1091      7    115
gfz  185|   -1     0    -4   -16    -6     0   .09    9    9 |    -506     872     13    208
grg  101|    2     0    -4    -8   -11    33  -.08   10   10 |    -322     566      9    135
igr  n/a|   -1     1     0   -12   -45     0  -.04    4    4 |  -14183     -59     12     75
jpl   80|    1     0     2    12     0   -17   .11    7    7 |  213834     -43     11    103
mit  349|    0    -1     4   -12    -3    -5  -.06   14   13 |    -800     359     93   1433
ngs  212|    0     0     0    10    14   -25  -.07    7    7 |    -907     421   1082   2270
sio  318|    1    -2     4   -10   -29    17  -.11   16   16 |     ---     ---    ---    ---

Table 2.2063.6   GPS week: 2063   Day: 6   MJD: 58691.000                            

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  258|    0     1    -2     1    25    20   .01    8    8 |    -868     104      6     90
emr   80|    0     0     6   -12   -17    50   .13   11   11 |  177753     490     14    105
esa  150|   -1    -1     0    -6   -10     5  -.07   48   11 |    3504    -646      8    118
gfz  183|    0     0     0     6     0    15   .07   13   10 |    -105    -265     13    189
grg  101|    2     0   -10   -20    13    39  -.04   12   11 |    -157     -27     10    140
igr  n/a|    0     0    -1   -20   -46    -3  -.03    4    4 |  -14878     367     11     80
jpl   80|    0     0     0     2    -9    14   .10    7    7 |  213087     399      9     82
mit  348|    1    -1     5    12   -18    -8  -.05   14   13 |    -457     -11     55   1716
ngs  214|    0     0     1    34     7   -39  -.09    7    6 |    -700    -165   1062   2329
sio  324|    0     0     5   -42   -10  -115  -.12   13   13 |     ---     ---    ---    ---

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

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

Table 3.2063.0   GPS week: 2063   Day: 0   MJD: 58685.000                            

        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   10   14   10    8    3    8   12    5   11    3 |    19   22   18   19   22   17   19   20   19   22    18
   2  |   10   10    6    7   10    4    6   17    7   19    3 |    23   26   23   25   21   23   24   30   21   25    22
   3  |    7   11   12    6   15    2    8    7    6    9    3 |   477  328  478  478  508  478  475  477  479  480   478
  X4  |  350  ---    2  ---  ---  340  ---  ---  ---  ---    0 |    34  ---  207  ---  ---  112  ---  ---  ---  ---   198
   5  |    9   10    7    7   11    4    7   13    9   20    3 |    51   49   47   50   51   48   51   50   48   48    49
   6  |   14   14    9   11   13    3    7   12    8   10    3 |    24   25   21   22   23   19   23   22   19   22    20
   7  |    5   12    6    7    8    4    8   24    8   18    3 |    48   46   44   45   47   42   46   44   43   44    44
   8  |    9   11   11   10   10    2    7    8    6   10    3 |    27   29   28   27   31   27   28   27   33   25    29
   9  |   11    9    6    8    6    3   10    7    4   12    3 |    32   36   29   30   28   30   38   32   30   36    32
  10  |    9   12   18   16   15    2    7   12    5    9    4 |   424  429  425  425  426  425  427  426  425  422   426
  11  |    5   11   12   11   11    3    6   13    5   12    3 |    30   35   31   34   33   30   32   32   30   29    30
  12E |   10   14    8   27   23    5    6   15   12   17    5 |    57   59   60   67   59   60   59   59   60   61    59
  13  |    9    8    7    9    6    4    5   12    8   17    3 |    25   31   23   22   23   24   30   30   28   33    25
  14  |    9    9    7    8    5    3    5   18    5   16    3 |    28   28   27   26   29   27   29   36   28   35    27
  15  |    8    8    8    7    6    4    7   14    6   20    3 |    66   65   62   61   64   63   62   60   59   60    62
  16E |   15   22    8    8   30    4   10   26   13   12    5 |    82   84   82   79   77   81   82   78   81   77    79
  17  |    7   10    6    8   11    3    6   15    7   17    3 |    23   26   18   23   23   19   24   24   21   21    21
  18  |    8    8   10    9   13    4    6   10    6   15    3 |    19   24   45   19   24   19   22   23   23   29    20
  19  |   10   14    6    7   12    4    5   18    8   23    3 |    26   30   26   30   25   25   28   29   24   27    26
  20E |   12   12    7   15   17    5    7   12    9   14    4 |    24   20   23   21   16   24   19   25   26   15    24
  21  |    7   13    9    7   13    4    7   15   10   18    3 |    18   24   16   15   20   15   19   21   18   20    16
  22  |    6   11    6    8   18    4    5   12    6   17    3 |    76   77   75   77   74   74   77   74   75   71    75
  23  |    7   18    5    8    7    3    6   15    4   16    3 |    19   18   18   21   21   19   21   22   20   22    18
  24  |    9    9    6    7    9    3    6   11    6   16    3 |    22   26   22   24   20   21   27   23   23   31    23
 X25E |    9  ---   18   31   10    4   11   13   15   16    6 |    24  ---   21   38   24   21   26   23   26   24    22
  26E |   11   11   14   64   17    4    6   14   10   13    4 |    22   26   20   63   35   24   24   24   26   21    24
  27  |    9   13   10   11    9    2    7    8    6    9    3 |    29   29   30   32   33   29   28   27   27   26    30
  28E |    6   11    9    9   14    3    7    9    6   14    3 |    69   70   73   72   68   70   69   72   69   69    69
  29  |    8   16    9    9    9    4    6   15    8   19    3 |    29   29   25   30   27   25   29   26   26   30    26
  30  |    5    8    6    7    8    2    5    6    6   10    2 |    27   30   24   27   27   25   30   25   25   29    27
  31  |    5    8    8    7   10    4    5   17    6   21    3 |    36   37   34   35   38   32   37   26   32   31    33
  32  |    6    9    5   11    7    3    9   12    8   13    3 |    35   39   34   36   33   34   41   36   36   39    36
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12    9   15   13    4    7   14    7   15      |T   60   59   65   63   62   61   62   62   61   62    65
 WRMS |    8   12    9   12   11    3    7   13    6   15      |NE  29   31   36   28   29   30   30   29   27   30    35
 MEDI |    9   11    8    8   10    4    7   13    6   16      |MD  28   30   28   30   29   27   29   29   28   30    27

Table 3.2063.1   GPS week: 2063   Day: 1   MJD: 58686.000                            

        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    8   16   11    8    4    7   12    8   16    3 |    22   23   21   19   24   21   22   20   22   29    21
   2  |    9   12    7   17   10    4    8   19    8   20    4 |    23   28   25   28   20   24   24   29   26   27    23
   3  |    7   10   15    7   19    3    9    8    9   13    4 |   473  390  476  475  487  476  474  476  474  474   474
  X4  |  370  ---    3  ---  ---  361  ---  ---  ---  ---    0 |    34  ---  239  ---  ---  101  ---  ---  ---  ---   257
   5  |   11   10    6    8   11    4    8   13    9   19    3 |    44   45   43   42   45   43   47   46   46   42    44
   6  |   12   14   10    9   13    3    6   12    8   19    3 |    21   26   20   21   21   19   22   22   21   25    20
   7  |    8    9    7    9    9    4    6   25    8   20    3 |    28   26   22   26   24   23   25   30   26   28    24
   8  |   11   10   12    8   10    4    7    9    6   18    3 |    23   23   23   22   23   20   22   21   22   28    22
   9  |    8    8    6    6   10    3    7    7    7   13    2 |    22   30   23   23   24   23   31   23   24   29    24
  10  |    9   10   16    9   18    4    8   12    5   14    4 |   480  475  474  477  488  476  475  474  471  477   476
  11  |    8    9   15    8   10    4    6   13    6   17    3 |    22   26   23   20   21   21   25   20   23   23    21
  12E |   10   16   10    7   10    5    6   17   14   17    4 |    47   48   47   47   44   46   45   45   48   44    45
  13  |    8    9    8    8    6    4    7   14    8   17    3 |    18   22   17   17   17   18   22   23   17   26    18
  14  |    9    8    7    8    6    3    6   18    6   21    3 |    19   15   16   21   20   16   16   23   17   27    16
  15  |    8    8    5    6    6    6    9   16    9   22    3 |    43   43   38   42   41   40   41   37   38   41    40
  16E |   11   19    8    7   25    6    8   21   10   15    5 |    68   68   70   68   71   67   68   68   66   64    67
  17  |    8    9    7    8   10    5    6   16    9   20    3 |    20   24   17   21   20   19   23   25   21   22    19
  18  |   14    8   10   10   15    3    6   13    5   19    3 |    26   26   38   20   24   22   24   22   26   30    23
  19  |   13   14    7    9   12    5    5   19   12   25    4 |    22   22   18   20   17   18   20   23   22   24    18
  20E |   10    9    8    9   17    5    6   14    7   19    3 |    21   22   20   20   16   18   19   20   19   14    17
  21  |   10   11    8    7   15    5    8   13   10   18    3 |    20   25   18   18   18   17   22   21   17   21    17
  22  |    9    8    6    8   15    3    5   14    7   17    3 |    69   68   67   66   71   66   68   66   69   62    67
  23  |    8   18    7    7    9    4    7   18    6   19    3 |    15   14   12   16   15   14   14   18   15   20    12
  24  |   10    8    7    8    8    5    7   11    9   20    3 |    20   26   21   18   20   19   25   22   21   28    21
  25E |   11   12   14   12    8    4    7   11    9   15    4 |    19   25   22   21   18   18   19   17   21   18    17
  26E |   16    9   19   45   22    7    7   14    6   15    7 |    26   27   23   51   30   25   24   25   25   22    26
 X27  |    7  ---  ---  ---    9   11  ---  ---  ---  ---    8 |    31  ---  ---  ---   30   28  ---  ---  ---  ---    30
  28E |    8   10    9   10   19    6    5   12    9   19    3 |    59   62   61   60   59   61   60   64   57   63    59
  29  |   10   17    6    9   11    6    7   14   11   19    4 |    27   23   18   25   19   19   20   21   22   23    20
  30  |    9    6    6    9    8    3    6    3    6   17    2 |    21   24   20   20   19   19   25   19   22   31    21
  31  |   11    8    8    5   10    4    6   19   11   22    3 |    25   27   20   22   23   21   26   19   25   24    22
  32  |   12   10    6    8    8    3    8   11    9   15    3 |    33   35   28   29   29   29   35   29   28   32    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   11   10   12   13    4    7   15    8   18      |T   57   57   63   59   58   57   59   58   58   60    62
 WRMS |   10   11   10   10   11    4    7   14    7   18      |NE  24   25   32   22   22   25   24   23   22   26    32
 MEDI |    9    9    8    8   10    4    7   13    8   18      |MD  23   26   23   22   23   21   24   23   23   28    22

Table 3.2063.2   GPS week: 2063   Day: 2   MJD: 58687.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9   12   19   12    9    4    7   11    8   16    4 |    31   33   27   26   33   26   30   26   29   35    28
   2  |    8    7    6   11   12    5    7   16    7   26    3 |    20   24   24   28   23   24   23   30   26   36    23
  X3  |   34  ---   19   26  359   20  113   27   36   38   13 |  9999  --- 9999 9999 9999 9999 9999 9999 9999 9999  9999
  X4  |    4  ---  365  ---  ---  358  ---  ---  ---  ---    0 |    29  ---  226  ---  ---  283  ---  ---  ---  ---   113
   5  |    8   10    8    7   13    4    7   12   10   26    3 |    41   43   43   43   45   41   44   45   45   48    43
   6  |    9   13   11   13   13    3    7   12    8   24    4 |    25   32   27   27   31   26   30   28   32   35    27
   7  |    8   11   10    8    9    6    6   26    9   22    4 |    45   45   39   41   47   39   43   45   45   48    42
   8  |   10   10   15   13   10    4    8    9    9   17    3 |    37   39   38   34   38   33   39   36   40   37    37
   9  |   14    9    8    7   10    3    9    9    6   14    3 |    23   32   25   21   27   23   33   24   27   31    25
  10  |   30   54   29   27  293   20   40   26   27   32   13 |  9999 9999 9999 9999 9999 9999 9999 9999 9999 9999  9999
  11  |   11   10   18   13   11    4    6   12    7   18    4 |    34   34   28   32   33   28   33   30   30   32    30
  12E |    7   16    6    9   17    4    9   14   14   24    4 |    30   31   30   31   30   29   31   29   35   41    29
  13  |    6    9    7   11    6    5    4   13    9   23    3 |    32   36   34   34   34   34   36   39   35   42    34
  14  |    9    9    9    9   10    4    6   19    8   24    3 |    42   42   42   40   45   41   43   42   39   48    41
  15  |    8    8    5    7    9    4    5   15   11   26    3 |    48   47   43   45   50   46   46   43   46   50    45
  16E |   10   19    8   11   13    5    7   19   11   24    4 |    34   30   31   33   31   30   29   33   35   40    30
  17  |   11   13    6   14   11    4    6   17    8   28    4 |    28   29   23   29   26   24   28   28   29   35    26
  18  |   14    9   14   13   14    6    6   10    8   19    4 |    29   28   39   22   31   20   26   23   25   34    23
  19  |   10   18    8    9   11    5    6   20    9   32    4 |    32   35   32   31   32   31   33   36   35   41    32
 X20E |   16  ---    8  ---  ---    7  ---   10    8  ---    6 |    28  ---   22  ---  ---   22  ---   27   31  ---    26
  21  |    9    9    8   12   12    4    7   13    9   23    3 |    31   29   27   29   27   27   30   26   29   31    27
  22  |   12   10    8   22   17    7    7   15    9   21    4 |    94   95   94   92   97   93   98   94   98   96    95
  23  |   14   16   10    6   12    5    6   19   10   20    4 |    27   31   28   26   30   26   28   30   32   32    27
  24  |   14   10    6    9   10    5    5   10   11   29    4 |    28   29   28   27   24   27   32   27   28   44    27
  25E |    7   14   17   13    8    4    6   10   11   25    4 |    28   28   25   30   25   28   30   29   36   40    28
  26E |   15   11   19   39   21    5    8   15    6   23    6 |    26   28   27   46   38   27   28   29   28   30    27
  27  |   11    9   14   15    9    3    7   10    7   16    3 |    29   31   32   32   31   27   31   30   33   36    29
  28E |   10    9   10   15   20    5    6   15    9   22    4 |    23   28   26   27   29   24   24   24   30   35    24
  29  |    6   17    8   12    9    6    8   16    7   29    4 |    30   32   32   35   30   31   32   32   34   42    31
  30  |    8    8   10    7   10    3    4   10    8   18    3 |    34   38   33   32   34   33   38   34   39   41    35
  31  |   11    9    8    7    9    5    8   17    9   25    3 |    41   39   35   36   40   34   39   31   35   39    36
  32  |    9   11    8   11   11    3    9   10    8   20    3 |    24   30   27   28   28   25   32   25   25   35    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   15   12   14   55    6   10   15   10   23      |T   33   35   39   34   35   40   35   33   35   40    35
 WRMS |   10   12   11   12   12    5   10   13    8   21      |NE  31   34   40   31   33   41   33   31   33   38    34
 MEDI |   10   10    8   11   11    5    7   14    9   23      |MD  30   32   30   31   31   28   32   30   33   37    29

Table 3.2063.3   GPS week: 2063   Day: 3   MJD: 58688.000                            

        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    9   15    9   10    3    7   13    5   13    3 |    23   24   22   19   26   20   20   21   20   27    21
   2  |    9    7    6    8   10    5    6   18    8   20    3 |    21   22   21   26   21   23   21   27   24   31    21
   3  |   12   11   14    5   18    5   12   13    8    9    4 |   672 9999  674  670  676  670  669  666  668  673   671
  X4  |    3  ---  349  ---  ---  367  ---  ---  ---  ---    0 |    24  ---  203  ---  ---  281  ---  ---  ---  ---    81
   5  |    8    9    9    8   17    4    8   15    9   19    3 |    46   44   44   44   41   42   45   44   43   45    43
   6  |    9   15   10    9   12    2    7   15   12   17    4 |    21   26   21   18   23   19   24   23   23   25    20
   7  |    8    8    9    8    8    4    7   26    8   21    3 |    35   34   37   42   39   33   34   35   40   32    36
  X8  |   15   16  ---  ---   18   21  ---   15   42  ---   13 |    29   30  ---  ---   27   25  ---   26   61  ---    32
   9  |    9    8    5    7    8    3    8   10    9   13    3 |    21   29   22   25   21   20   28   21   23   27    23
  10  |    7   11   16   10   21    4    9   13    8   12    4 |   650  649  650  649  637  648  647  647  651  647   648
  11  |    9    7   16    9   12    3    6   14    7   17    3 |    29   32   24   27   30   27   29   28   27   29    27
  12E |   10   15   12   13   30    7    6   19    8   20    5 |    41   37   37   43   44   39   37   38   39   46    38
  13  |    8    8    8    7    9    5    5   15    6   20    3 |    19   21   16   17   16   16   21   22   15   27    17
  14  |    6   10    8    5    9    4    4   20    5   21    3 |    18   17   16   17   17   15   14   22   16   23    15
  15  |    8    8    7    8   11    4    7   16    7   20    3 |    47   48   45   47   52   45   47   40   43   43    45
  16E |    7   22    8   14   12    3    9   16   11   14    4 |    29   32   31   30   34   29   30   31   29   37    30
  17  |    8   13    7    5   10    4    5   18    9   22    3 |    21   22   16   20   21   18   23   21   23   23    19
  18  |    6    7   13   13   14    4    5   11    8   19    3 |    21   23   40   17   28   18   21   21   18   33    19
  19  |   13   16    9    8   11    5    5   21   12   26    4 |    22   24   20   22   20   19   22   22   22   23    19
 X20E |    3  ---  ---  ---  ---   63  ---  ---  ---  ---    0 |    33  ---  ---  ---  ---   32  ---  ---  ---  ---    34
  21  |   11    8    8    7   12    5    7   14   10   16    3 |    26   22   17   21   20   19   20   22   21   22    19
  22E |    9    9    8    6   12   10    5   18    9   15    3 |    72   73   71   73   73   71   75   73   75   70    72
  23  |    8   16    6    7    6    3    6   19    9   19    3 |    18   18   18   19   19   16   18   22   20   26    17
  24  |    9    8    7   10    9    4    7   11    9   20    3 |    23   28   23   22   22   21   27   23   22   34    23
  25E |   10   13   18   17    8    4    6   14    9   20    4 |    24   24   23   32   24   22   25   24   23   34    23
  26E |    9   12   17   26   15    3    7   16    9   14    5 |    29   26   21   41   35   29   23   27   22   28    28
  27  |    7    7   13    7    7    4    7   11    9   14    3 |    26   29   29   29   30   25   27   25   25   33    26
  28E |    9    7    8   11   14    4    6   14   10   17    3 |    32   31   29   28   29   28   28   28   30   34    28
  29  |   10   17    7    9   10    4    7   15    9   19    4 |    28   25   20   27   24   21   23   22   23   28    22
  30  |    8    7    8    7    9    3    7    7    7   17    3 |    25   26   23   22   23   21   24   20   25   29    23
  31  |    5    8    7    5    8    5    6   19    6   22    3 |    32   34   30   34   37   31   34   26   35   34    32
  32  |   14    8    5    7    7    4    9   13    7   15    3 |    17   26   17   18   20   19   28   21   17   30    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11   11   10   12    4    7   16    9   18      |T   67   50   75   72   70   73   71   69   70   75    68
 WRMS |    9   11   10   11   10    4    7   15    8   18      |NE  24   26   32   24   25   34   25   24   25   28    26
 MEDI |    8    9    8    8   10    4    7   15    9   19      |MD  26   26   23   27   26   23   27   24   23   31    23

Table 3.2063.4   GPS week: 2063   Day: 4   MJD: 58689.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    9   12    8    8    2    6   11    7   13    3 |    21   23   23   21   25   20   22   19   21   28    21
   2  |    8    9    6   10   10    4    7   16    7   18    3 |    20   25   21   24   22   23   22   28   23   27    21
   3  |    8   10   14    7   14    5    9   12    8   12    3 |  9999  661 9999 9999 9999 9999 9999 9999 9999 9999  9999
  X4  |    1  ---  345  ---  ---   23  ---  ---  ---  ---    0 |    20  ---  204  ---  ---   93  ---  ---  ---  ---    52
   5  |   11   11    6    9    9    2    9   12    8   15    3 |    59   57   57   59   60   58   57   60   64   58    58
   6  |   10   14   10   10   12    4    7   13    8   13    3 |    19   27   19   18   23   18   23   20   19   23    19
   7  |    8    9    9   10    6    3    6   25    6   17    3 |    36   38   35   38   35   34   38   37   35   34    35
   8  |    5    8   11   11   10    2    8   10    7   14    3 |    24   24   26   27   27   22   28   23   19   31    22
   9  |    9    8    6    7    7    2    6   10    9   10    2 |    20   29   22   24   22   21   29   20   20   24    22
  10  |    8   13   17   14   23    3    8   11    8    9    4 |   802  803  808  806  802  805  807  803  804  804   805
  11  |    9    7   13    6   11    3    6   11    9   17    3 |    25   29   24   26   26   25   27   24   29   26    25
  12E |    6   18    8    9   11    3    8   13   12   17    4 |    42   42   41   44   43   41   41   42   45   48    42
  13  |    9    8    7    9    9    4    6   11    8   12    3 |    21   24   19   22   21   20   25   26   22   24    21
  14  |    8   10    7    8    8    3    7   18    5   19    3 |    27   28   27   32   28   27   30   32   27   31    27
  15  |    9   12    7    9    9    4    7   14    7   14    3 |    42   46   38   38   42   39   43   37   37   38    40
  16E |    7   18    8    7   10    5    7   14    7   15    3 |    40   43   40   42   43   40   38   38   43   41    40
  17  |    9    9    6    7   10    4    5   17    8   22    3 |    23   24   18   22   21   20   23   23   24   26    21
  18  |    6    8    9    9   12    5    7   10    8   15    3 |    18   24   39   18   27   18   21   20   20   30    20
  19  |    9   14    6    7   12    5    5   19    8   26    4 |    22   24   22   24   20   20   22   25   24   26    21
  20E |   11   14    8   20   12    6    6   17   12   15    4 |    29   34   32   29   37   29   30   31   35   35    28
  21  |   11   13    7    8   10    5    6   16   14   19    4 |    22   21   13   18   19   15   17   19   18   18    15
  22E |    6    8    6    8   17    4    5   13    9   16    3 |    68   68   66   68   65   66   66   65   67   65    66
  23  |    7   19    8    7    9    3    3   16    7   19    3 |    15   17   13   18   19   15   17   18   17   20    15
  24  |    8   16    7   10    8    4    6    8    8   18    3 |    16   28   18   16   17   18   25   21   19   32    19
  25E |    6   12   17   11    6    2    7   10   12   12    3 |    19   18   18   24   22   18   21   19   22   23    18
  26E |   10   14   14   17   17    5    7   17    8   13    4 |    24   21   18   31   32   24   22   24   25   25    25
  27  |    9   10    9   15    7    2    6   10    6   11    3 |    31   29   28   35   31   30   31   28   28   34    31
  28E |    8   12    8   11   10    4    5   15   11   17    3 |    32   33   33   35   33   33   31   35   33   35    31
  29  |    7   19    7    9    7    3    8   17    9   15    3 |    22   20   16   23   23   18   18   19   21   20    19
  30  |    9    6    8    6    8    3    6    9    7   13    2 |    22   27   22   23   21   22   28   19   26   28    23
  31  |    5    7    7    4    9    3    8   17    5   22    3 |    31   35   30   31   33   29   37   25   29   30    31
  32  |    6    8    6    5    7    3    8    8    9   13    2 |    24   29   22   25   24   23   30   24   23   31    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12    9   10   11    4    7   14    9   16      |T   52   75   58   55   55   54   55   54   54   57    53
 WRMS |    8   12    9    9   10    4    7   13    7   15      |NE  23   27   31   24   25   25   26   24   23   27    24
 MEDI |    8   10    8    9   10    3    7   13    8   15      |MD  24   28   24   25   26   23   28   24   24   30    24

Table 3.2063.5   GPS week: 2063   Day: 5   MJD: 58690.000                            

        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    8   14   10    9    3    7   10    6   15    3 |    21   23   21   21   25   20   24   20   21   29    22
   2  |    6    6    6    8    9    4    5   15    9   23    3 |    21   24   22   25   21   23   23   29   24   27    22
   3  |    9   11   13    7   14    4    9   11    6   10    3 |   766  625  771  766  775  769  767  768  769  769   768
  X4  |    1  ---  331  ---  ---   66  ---  ---  ---  ---    0 |    25  ---  194  ---  ---   71  ---  ---  ---  ---    48
   5E |    6   10    7    7   10    3    8   11    9   17    3 |    70   69   69   72   71   70   70   70   74   74    71
   6  |    7   13   11    9   12    3    7   12    6   14    3 |    20   27   21   20   22   19   24   21   20   23    20
   7  |    5    8    9    9    8    3    6   27    8   19    3 |    29   32   29   35   31   29   32   32   32   29    30
   8  |    9    9   12    8   10    4    9   12    6    9    3 |    25   25   24   23   27   21   26   23   23   26    23
   9  |    8    9    5    8    9    3    6   11    5   12    2 |    27   34   28   31   26   28   33   27   29   32    29
  10  |   14   10   16   12   12    4   11   11   10   10    4 |   639  634  633  639  632  635  635  633  634  636   635
  11  |    9    8   16    9   10    3    6   11    9   15    3 |    23   28   22   24   22   22   27   21   23   22    22
  12E |    6   16    9    7   12    4    7   16   11   16    3 |    48   48   46   49   49   48   49   45   52   48    47
  13  |    7    9    7    8    8    4    6   13    6   17    3 |    19   27   21   23   21   21   26   25   19   27    21
  14  |    8   11    7    7    9    4    5   19    5   19    3 |    29   28   25   26   28   26   26   31   26   33    26
  15  |    7   10    5    7   10    4    5   15    8   19    3 |    38   36   32   37   34   34   34   33   33   37    34
  16E |    8   21    7   10    9    4    7   15    8   15    3 |    42   46   45   45   46   44   43   42   45   44    43
  17  |    7   10    7    7   10    4    6   17    6   22    3 |    20   26   17   21   21   18   24   22   21   24    19
  18  |    6    9   10   11   13   10    6   11    6   15    3 |    15   21   89   16   23   18   21   19   17   28    18
  19  |    6   16    6    9   10    5    6   19    9   24    4 |    27   33   29   32   24   28   31   32   26   34    28
  20E |   12   10    8    9   15    5    8   13   10   15    3 |    29   27   26   24   22   30   25   25   25   22    28
  21  |    6    9    5    7   11    5    8   13    9   18    3 |    19   20   16   20   18   18   20   20   17   20    17
  22E |    9    7    8    6   12    5    4   15    5   16    3 |    64   62   61   63   60   62   63   61   62   56    62
  23  |    8   18    6    7    7    5    6   19    5   20    3 |    16   18   16   19   16   15   16   15   15   21    15
  24  |    7   10    5    8    9    4    5    8    6   19    3 |    22   27   18   22   22   20   26   23   23   33    22
  25E |    5   10   16   13    8    4    7   12    9   13    3 |    17   17   18   22   17   16   18   19   18   21    16
 X26E |    8  ---  ---  ---   13   10  ---  ---  ---  ---   10 |    37  ---  ---  ---   46   36  ---  ---  ---  ---    40
  27  |    8    8   12    9    8    4    8    9    7   10    3 |    23   26   28   27   25   25   24   24   24   25    24
  28E |    8    8    7   10   14    3    6   12    7   17    3 |    33   34   33   32   34   32   32   35   35   38    32
  29  |    7   16    6    8    7    4    7   19   10   18    3 |    23   22   18   24   20   19   21   24   23   25    20
  30  |    6    7    6    8   10    2    6    9    6   13    2 |    22   26   22   24   19   23   27   19   24   28    23
  31  |    6    7    9    6    9    5    9   15    8   19    3 |    26   29   25   28   28   24   29   24   25   29    25
  32  |    7    7    5    7    8    4    7   10    6   10    2 |    29   32   29   31   26   27   32   28   27   31    29
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   11    9    9   10    4    7   14    7   16      |T   70   70   78   74   72   71   74   73   73   76    71
 WRMS |    7   11    9    9   10    4    7   13    7   16      |NE  23   26   33   25   23   24   26   24   23   27    24
 MEDI |    7    9    7    8   10    4    6   12    7   16      |MD  25   27   26   25   25   25   26   25   24   29    25

Table 3.2063.6   GPS week: 2063   Day: 6   MJD: 58691.000                            

        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  |    5    7   14    7    8    2    6   11    6    7    3 |    21   23   24   23   26   21   24   21   22   23    22
   2  |   10    5    6    9   12    4    8   17    7   14    3 |    25   26   25   26   22   26   26   33   27   29    24
   3E |   11   10   13   10   22    3   11   12    8    8    4 |   842  604  843  840  858  843  840  843  841  843   841
  X4  |    2  ---  369  ---  ---   28  ---  ---  ---  ---    0 |    19  ---  224  ---  ---   60  ---  ---  ---  ---    71
   5E |    7   12    7   15   12    4   10   12    8   13    3 |    92   90   90   89   86   90   91   92   97   90    91
   6  |    9   11   11   11   15    4    8    9    5   10    3 |    21   26   25   23   25   20   25   22   25   21    22
   7  |    5    8    8   10    8    4    5   26    6   15    3 |    46   47   49   50   49   45   48   44   46   43    46
   8  |   10   10   12    8   10    3    7   13    5    8    3 |    26   29   31   29   30   27   29   26   31   25    28
   9  |    8    7    5    6    7    2    7   11    6   10    2 |    31   36   30   31   31   32   37   33   35   38    33
  10E |   11   13   14   23   12    3    8   12    8    7    4 |   661  661  666  664  668  662  659  660  660  659   661
  11  |    7    9   14    8   11    2    6   11    7   10    3 |    32   36   30   34   35   32   36   32   32   28    32
  12E |    6   14    8    6   13    4    8   16    9   13    3 |    64   64   64   65   62   62   63   62   60   61    62
  13  |    8    8    6    8    6    4    8   15   10   12    3 |    23   31   25   24   25   25   31   32   28   33    26
  14  |    8    7    8    9    9    3    7   19    5   16    3 |    33   34   31   34   35   33   33   40   32   39    32
  15  |    8   10    6   10    8    4    6   16    7   16    3 |    62   61   60   65   63   61   62   58   63   63    61
  16E |    7   23    7    8   12    4    9   17   12    9    4 |    62   64   61   62   63   60   62   61   63   60    61
  17  |    7    9    7    7    9    5    6   16    8   17    3 |    21   27   22   22   23   21   25   24   24   21    22
  18  |    6    8  264    7   16    5    6   11    6   11    3 |    21   23  117   20   27   18   22   22   22   27    20
  19  |    8   15    7    8   11    5    7   20    8   19    4 |    28   31   31   31   27   28   30   33   30   31    29
  20E |    8    7    7   15   12    3    6   12    7   12    3 |    42   30   32   28   34   42   32   31   30   38    41
  21  |    6   11    6    9   12    4    8   12    9   16    3 |    19   23   15   17   21   16   21   21   19   22    17
  22E |   12    6    7    7   12    3    5   15    4   14    3 |    64   63   63   61   69   62   64   58   62   61    63
  23  |    8   18    7    6    9    3    4   20    7   20    4 |    21   21   19   18   21   18   21   23   24   24    19
  24  |    9    9    7    9   12    4    8    7    5   12    3 |    21   27   22   24   23   21   26   22   24   31    23
  25E |    6   15   15    8   10    4    7    6   10    9    3 |    23   25   22   26   20   21   24   23   26   25    21
  26E |    9   10   18   46   23    6    6   17    6   10    6 |    35   34   33   55   43   34   33   31   31   26    33
  27  |   10    8   12   13    8    2    7   10    6    6    3 |    25   28   30   34   29   28   26   26   29   28    28
  28E |    8   11    9   12   14    5    5   14    7   15    3 |    41   43   43   43   40   42   40   45   39   41    40
  29  |    6   17    6    9    8    4    9   16    6   15    3 |    28   31   24   29   27   25   27   28   28   30    26
  30  |    6    8    6    7   10    3    6    8    6   11    2 |    26   30   27   27   26   25   30   24   29   30    27
  31  |    6    8    7    7    8    3    6   15    5   17    3 |    38   39   40   37   42   36   40   30   35   36    37
  32  |    7    7    5    6    7    3    7   10    8   11    2 |    36   36   34   35   34   34   38   34   32   40    35
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   11   48   13   12    4    7   14    7   13      |T   79   75   89   82   83   80   82   81   82   82    81
 WRMS |    8   11   11   10   11    4    7   13    6   13      |NE  28   31   42   30   30   29   31   29   30   31    30
 MEDI |    8    9    7    8   11    4    7   13    7   12      |MD  28   31   31   31   31   32   32   32   31   31    32



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 4.2063   GPS week: 2063   MJD: 58685.0-58691.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |U   15    15    40 |U    6    12    23 |U   14    13    35 |
emr | emr 2892 |U   20    16    63 |U   11    16    44 |U   21    19    49 |
esa | esa 3017 |    17    20    43 |U    6    15    29 |    14    11    31 |
gfz | gfz 2906 |U   17    14    43 |U    7    12    25 |U   15    12    34 |
grg | grg 2929 |U   18    19    50 |U    8    16    31 |    15    13    39 |
igr | igr 2919 |    14    13    44 |     6    12    24 |    14    12    33 |
igs | igs 2958 |    16    16    45 |     7    12    24 |    15    13    35 |
jpl | jpl 2907 |U   14    17    30 |U   10    17    36 |U   19    16    42 |
mit | mit 2934 |    19    18    42 |U   12    20    41 |U   51    38   112 |



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 5.2063.0   GPS week: 2063   Day: 0   MJD: 58685.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     9    10    21 |     8     9    24 |    14    15    38 |
emr | emr 2879 |    16    15    37 |    10    10    46 |    18    16    45 |
esa | esa 3072 |    12    11    25 |     8     9    25 |    15    15    32 |
gfz | gfz 2975 |    11    10    24 |     8     8    20 |    16    15    38 |
grg | grg 2975 |    10    11    31 |     9    11    34 |    15    17    40 |
igr | igr 2975 |    10    10    22 |     8     8    23 |    15    15    36 |
igs | igs 2975 |    10    10    23 |     8     9    20 |    16    16    38 |
jpl | jpl 2976 |    12    15    26 |     9    10    27 |    20    19    43 |
mit | mit 2976 |    17    19    33 |    10    18    43 |    22    20    57 |

Table 5.2063.1   GPS week: 2063   Day: 1   MJD: 58686.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |    10     8    23 |     6    12    15 |    14    13    29 |
emr | emr 2880 |    12    13    33 |     8    19    39 |    18    15    48 |
esa | esa 2976 |    11    10    24 |     7    16    26 |    13    11    26 |
gfz | gfz 2880 |    10     8    23 |     7    13    21 |    13    10    25 |
grg | grg 2963 |    11    12    32 |     8    15    27 |    13    12    37 |
igr | igr 2880 |     9     8    21 |     6    13    18 |    13    11    27 |
igs | igs 2966 |    10     8    24 |     6    13    19 |    13    11    28 |
jpl | jpl 2880 |    10    11    27 |     8    17    27 |    17    12    40 |
mit | mit 2880 |    17    18    57 |    14    13    39 |   240   137   469 |

Table 5.2063.2   GPS week: 2063   Day: 2   MJD: 58687.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3069 |    10    10    30 |     7    11    20 |    18    17    45 |
emr | emr 2783 |    17    19    38 |    17    21    71 |    26    27    67 |
esa | esa 3072 |    11    13    26 |     6    17    35 |    17    17    45 |
gfz | gfz 2879 |    13    10    21 |     8    12    27 |    21    21    48 |
grg | grg 2879 |    18    15    30 |     9    22    43 |    18    18    45 |
igr | igr 2975 |    11    10    25 |     6    11    24 |    18    16    43 |
igs | igs 2975 |    11    13    29 |     8    10    32 |    19    17    47 |
jpl | jpl 2880 |    17    25    31 |    17    19    76 |    28    21    60 |
mit | mit 2976 |    14    13    36 |    11    20    41 |    21    20    53 |

Table 5.2063.3   GPS week: 2063   Day: 3   MJD: 58688.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2964 |    11    13    25 |     6    11    22 |    14    12    35 |
emr | emr 2872 |    15    14    37 |     8    18    39 |    20    17    48 |
esa | esa 2880 |    14    18    26 |     6    16    26 |    13    11    26 |
gfz | gfz 2784 |    12    18    30 |     6    13    24 |    15    10    35 |
grg | grg 2871 |    15    18    32 |     7    13    24 |    15    11    41 |
igr | igr 2830 |    12    15    26 |     5    13    23 |    14    11    30 |
igs | igs 2871 |    12    14    26 |     6    14    21 |    15    11    33 |
jpl | jpl 2784 |    13    17    32 |     8    18    30 |    18    13    34 |
mit | mit 2880 |    11    14    29 |     8    13    32 |    15    10    39 |

Table 5.2063.4   GPS week: 2063   Day: 4   MJD: 58689.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    13    13    36 |     6    12    28 |    12    10    32 |
emr | emr 2976 |    16    15    40 |    11    14    38 |    23    19    48 |
esa | esa 3072 |    14    15    32 |     5    16    33 |    11     9    30 |
gfz | gfz 2974 |    16    16    35 |     7    13    31 |    12    10    32 |
grg | grg 2878 |    19    14    54 |     6    16    31 |    16    11    37 |
igr | igr 2976 |    12    13    33 |     6    13    29 |    11    10    31 |
igs | igs 2976 |    12    14    34 |     6    13    28 |    12    11    33 |
jpl | jpl 2976 |    14    16    35 |     9    18    30 |    15    14    36 |
mit | mit 2976 |    12    14    37 |    14    28    49 |    13    14    39 |

Table 5.2063.5   GPS week: 2063   Day: 5   MJD: 58690.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3062 |    39    35   116 |     6    15    27 |    11    10    32 |
emr | emr 2879 |    44    21   224 |    11    14    48 |    20    18    37 |
esa | esa 2976 |    37    52   141 |     6    15    33 |    15     7    26 |
gfz | gfz 2879 |    38    20   141 |     8    12    29 |    15     7    33 |
grg | grg 2967 |    33    42   120 |     8    14    22 |    14    12    32 |
igr | igr 2879 |    32    17   150 |     7    13    27 |    14     7    29 |
igs | igs 2967 |    40    37   151 |     6    13    24 |    13    11    31 |
jpl | jpl 2880 |  ----  ----  ---- |    10    16    31 |  ----  ----  ---- |
mit | mit 2880 |    43    28    74 |    16    26    54 |    32    49    88 |

Table 5.2063.6   GPS week: 2063   Day: 6   MJD: 58691.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3071 |    15    17    32 |     6    13    23 |    14    11    33 |
emr | emr 2976 |    17    19    32 |    11    14    27 |    20    23    49 |
esa | esa 3072 |    17    17    28 |     6    18    26 |    14    11    34 |
gfz | gfz 2976 |    18    17    29 |     5    14    26 |    14    10    29 |
grg | grg 2976 |    18    18    53 |     7    19    36 |    16    12    39 |
igr | igr 2924 |    15    16    29 |     6    15    24 |    14    11    33 |
igs | igs 2976 |    15    17    28 |     6    15    23 |    15    12    35 |
jpl | jpl 2976 |    15    19    28 |     8    20    28 |    18    16    38 |
mit | mit 2976 |    17    18    31 |     8    19    33 |    16    14    37 |


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 6.2063   GPS week: 2063   MJD: 58685.500-58691.500

                                                         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     -23     -21      51      0 |      13     19
            |      18      20      50     107      4 |       2
emr   uuuuu |      26       9     125     118      4 |      32     38
            |      18      24      45      45      5 |       2
esa   uuuuu |       9      12      39      78     -1 |      12     21
            |       7       6      52      43      6 |       3
gfz   uuuuu |     -20      -5     117    -159     -1 |      27     31
            |      14      14      99     106      2 |       2
grg   uuuuu |     -13     -17     -22    -176      3 |       2     18
            |      18      10      39      84      2 |       2
igr   xxxxx |      33      19      66     -43      0 |      -1     15
            |      11       7      23      41      4 |       2
irf   xxxxx |       5       3     -54     -57     -3 |       0     18
            |      10      13      25      22      2 |       2
jpl   uuuuu |      36       9      79      76     -6 |      38     41
            |      17      16      49      46      9 |       3
mit   uuuuu |     -30      20    -102    -150     -3 |      29     34
            |       8      17      52      68      4 |       2
ngs   uuuuu |     -32     -12    -184       2     -2 |      14     22
            |      33      26     135     105      3 |       3
sio   uuuux |      44      28    -117      45      8 |      66     69
            |      20      23      44      73     15 |       4


Table 7.2063.0   GPS week: 2063   Day: 0   MJD: 58685.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -13     -35       9    -147      1 |      16     20
emr   uuuuu |      17       2      95     105      3 |      31     36
esa   uuuuu |      11      10      -5      89    -10 |      17     23
gfz   uuuuu |      -5      -6     -80     -98      0 |      29     33
grg   uuuuu |       0     -26     -22     -45      3 |       5     18
igr   xxxxx |      40      10      56      -1     -1 |       1     14
irf   xxxxx |       7     -19     -28     -27     -1 |       3     16
jpl   uuuuu |      37      31      25      71     11 |      41     43
mit   uuuuu |     -34      -4     -15    -107      3 |      32     36
ngs   uuuuu |     -45       4      48       8     -3 |      18     23
sio   uuuux |      41      -7    -159     106     13 |      63     64

Table 7.2063.1   GPS week: 2063   Day: 1   MJD: 58686.500

                                                         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 |      11     -17     -41      92      7 |      15     20
emr   uuuuu |      25      27     141      41      7 |      32     37
esa   uuuuu |      11      24     -50      89     -9 |      16     22
gfz   uuuuu |       0      16      93      20      0 |      30     33
grg   uuuuu |      -1     -30     -43    -146      3 |       5     18
igr   xxxxx |      22      15      72     -48      7 |       1     14
irf   xxxxx |       0       1     -52     -71     -5 |       3     16
jpl   uuuuu |      39      -2      53      99     -5 |      41     43
mit   uuuuu |     -27      15     -93    -233     -3 |      33     36
ngs   uuuuu |     -84     -32     -45    -129     -5 |      18     23
sio   uuuux |      39      19    -148      38      8 |      65     66

Table 7.2063.2   GPS week: 2063   Day: 2   MJD: 58687.500

                                                         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     -44     -84     117     -3 |      12     18
emr   uuuuu |      57       5     185     129     11 |      30     35
esa   uuuuu |       9      15      48     119     -1 |      10     21
gfz   uuuuu |     -20      -4     141    -174      1 |      26     30
grg   uuuuu |     -34      -8      38    -152      0 |       1     18
igr   xxxxx |      42      11     103     -25      0 |      -3     15
irf   xxxxx |      18      -8     -27     -73      0 |      -1     18
jpl   uuuuu |      56      28      81      84     -7 |      38     42
mit   uuuuu |     -42      10     -86    -212      1 |      28     33
ngs   uuuuu |     -49     -17    -244    -116      3 |      13     22
sio   uuuux |      39      10    -139     158     32 |      62     64

Table 7.2063.3   GPS week: 2063   Day: 3   MJD: 58688.500

                                                         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 |     -42     -42     -66     174     -5 |      13     20
emr   uuuuu |       0      31      57     112      7 |      33     40
esa   uuuuu |       1       7      32      11      0 |      10     22
gfz   uuuuu |     -18     -24     125    -119     -6 |      27     32
grg   uuuuu |       0      -4       2    -124      6 |       2     19
igr   xxxxx |      23      28      69     -65      3 |      -1     17
irf   xxxxx |       9      12     -40     -82     -4 |       0     19
jpl   uuuuu |      59     -15     143      34     -2 |      39     42
mit   uuuuu |     -34      17     -77    -217     -5 |      30     35
ngs   uuuuu |     -35      29    -258     -37      1 |      15     24
sio   uuuux |      60      64     -99      45     15 |      67     71

Table 7.2063.4   GPS week: 2063   Day: 4   MJD: 58689.500

                                                         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 |       1     -13      39     -21      3 |      11     18
emr   uuuuu |      29     -36     176     145      5 |      33     40
esa   uuuuu |      10       9      68      97      2 |      10     21
gfz   uuuuu |     -32       9     161    -278     -3 |      25     31
grg   uuuuu |     -42     -21     -59    -208      2 |       1     19
igr   xxxxx |      21      22      59    -106      0 |      -2     17
irf   xxxxx |      -5      11     -82     -31     -3 |      -2     19
jpl   uuuuu |      30       7     125     135    -19 |      38     41
mit   uuuuu |     -21      21    -157     -72     -5 |      28     34
ngs   uuuuu |     -32      -3    -326      59     -2 |      13     22
sio   uuuux |      74      36    -154      53      7 |      68     72

Table 7.2063.5   GPS week: 2063   Day: 5   MJD: 58690.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -16     -25      39     111     -1 |      12     18
emr   uuuuu |      17      31     108     110     -3 |      36     41
esa   uuuuu |      -2       5      92      26      6 |      10     21
gfz   uuuuu |     -31      -9     244    -285      1 |      26     31
grg   uuuuu |       2     -17     -72    -287      3 |       3     18
igr   xxxxx |      33      17      26     -63      1 |      -1     16
irf   xxxxx |      12      15     -90     -64     -3 |       0     18
jpl   uuuuu |      17       2      17     110     -9 |      36     40
mit   uuuuu |     -18      45    -168    -112     -3 |      29     34
ngs   uuuuu |       7     -15    -268     160     -6 |      14     22
sio   uuuux |      42      34     -50     -52     -2 |      71     74

Table 7.2063.6   GPS week: 2063   Day: 6   MJD: 58691.500

                                                         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 |     -27      12     -43      34     -2 |      11     17
emr   uuuuu |      35       0     116     188     -2 |      32     36
esa   uuuuu |      21      11      88     116      6 |       8     19
gfz   uuuuu |     -36     -14     133    -181      0 |      24     29
grg   uuuuu |     -16     -10       0    -266      4 |       1     16
igr   xxxxx |      49      27      78      11     -7 |      -3     15
irf   xxxxx |      -9      10     -57     -48     -5 |      -3     17
jpl   uuuuu |      15      13     107       2    -14 |      31     35
mit   uuuuu |     -31      37    -120     -94    -11 |      27     31
ngs   uuuuu |      12     -51    -198      71     -1 |      11     19
sio   uuuux |      12      43     -69     -30    -16 |      70     73


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