[IGSREPORT-26643] Wk 2056 IGS Final Orbits

acc acc at igs.org
Sat Jun 22 21:36:05 PDT 2019


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2056   (Jun 02, 2019 - Jun 08, 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:

igs2056[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2056[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2056[0-6].cls  IGS GPS clock combination summary report.
igs20567.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20567.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 18 GLSV TIXI GLSV TIXI
                0  |  ESA   | CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2
                0  |  ESA   | KIRU KOUR LAUT MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR
                0  |  ESA   | NNOR ONSA PTBB TONG TOW2 USN7 VILL CEDU COCO DARW
                0  |  ESA   | DAV1 DGAR FAA1 GRAZ HARB HERS HOB2 KIRU KOUR LAUT
                0  |  ESA   | MAJU MAR6 MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA PTBB
                0  |  ESA   | TONG TOW2 USN7 VILL
                0  |  GFZ   | 18 19 22 LHAZ
                0  |  GRG   | 21 21 GLSV LHAZ GLSV LHAZ
                1  |  COD   | 18 21 18 21 GLSV TIXI GLSV TIXI
                1  |  EMR   | 1 24 1 24
                1  |  ESA   | 18 18 AREG CEBR CEDU COCO DARW DAV1 DGAR FAA1 FALK
                1  |  ESA   | GLPS GRAZ HARB HERS HOB2 KIRU KOUR MAJU MAR6 MAS1
                1  |  ESA   | MAW1 MGUE MOBS NAUR NNOR ONSA PTBB TONG TOW2 USN7
                1  |  ESA   | VILL AREG CEBR CEDU COCO DARW DAV1 DGAR FAA1 FALK
                1  |  ESA   | GLPS GRAZ HARB HERS HOB2 KIRU KOUR MAJU MAR6 MAS1
                1  |  ESA   | MAW1 MGUE MOBS NAUR NNOR ONSA PTBB TONG TOW2 USN7
                1  |  ESA   | VILL
                1  |  GFZ   | 21 19 PIMO
                1  |  GRG   | 18 18 21 GLSV GLSV
                1  |  JPL   | 18 18 RBAY RBAY
                2  |  COD   | GLSV MCIL TIXI AREQ GLSV MCIL TIXI
                2  |  EMR   | YELL PTBB YELL
                2  |  ESA   | AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                2  |  ESA   | HERS HOB2 KIRU KOUR MAJU MAS1 MAW1 MCIL MGUE MOBS
                2  |  ESA   | NAUR NNOR ONSA PTBB TONG TOW2 USN7 VILL AREG CEDU
                2  |  ESA   | COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2
                2  |  ESA   | KIRU KOUR MAJU MAS1 MAW1 MCIL MGUE MOBS NAUR NNOR
                2  |  ESA   | ONSA POVE PTBB TONG TOW2 USN7 VILL
                2  |  GFZ   | 18 IRKJ REYK IRKJ REYK
                2  |  GRG   | 18 18 DARW IRKJ NNOR DARW IRKJ NNOR OHI3
                2  |  JPL   | 18 18 POLV POLV
                2  |  MIT   | 18 NNOR
                3  |  COD   | 18 18 GLSV TIXI GLSV TIXI
                3  |  EMR   | 18 PRDS GOL2 PRDS
                3  |  ESA   | CEDU COCO DARW DAV1 FAA1 FALK GRAZ HARB HERS HOB2
                3  |  ESA   | KIRU KOUR MAJU MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA
                3  |  ESA   | PTBB TOW2 USN7 VILL CEDU COCO DARW DAV1 FAA1 FALK
                3  |  ESA   | GRAZ GUAT HARB HERS HOB2 KIRU KOUR MAJU MAS1 MAW1
                3  |  ESA   | MGUE MOBS NAUR NNOR ONSA PTBB TOW2 USN7 VILL
                3  |  GFZ   | 18 19 22 SUTH MCIL SUTH
                3  |  GRG   | 2 18 2 18 GLSV GLSV
                4  |  COD   | 21 18 21 BOGT IRKJ LHAZ TIXI BOGT LHAZ TIXI
                4  |  EMR   | MDO1
                4  |  ESA   | 18 18 CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS
                4  |  ESA   | HOB2 KIRU KOUR LHAZ MAJU MAS1 MAW1 MGUE MOBS NAUR
                4  |  ESA   | NNOR ONSA PTBB TONG TOW2 USN7 CEDU COCO DARW DAV1
                4  |  ESA   | DGAR FAA1 GRAZ HARB HERS HOB2 KIRU KOUR LHAZ MAJU
                4  |  ESA   | MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA PTBB TONG TOW2
                4  |  ESA   | USN7
                4  |  GFZ   | GODE GODE MCIL
                4  |  GRG   | 18 18 DARW GLSV GLSV
                4  |  JPL   | 18
                4  |  MIT   | 18 MDO1
                5  |  COD   | 21 21 MCIL TIXI TIXI VILL
                5  |  EMR   | 1 18 1 18 KOKB
                5  |  ESA   | 18 18 AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ
                5  |  ESA   | HARB HERS HOB2 KIRU KOUR MAJU MAS1 MAW1 MGUE MOBS
                5  |  ESA   | NAUR NNOR ONSA PTBB TONG TOW2 USN7 VILL AREG CEDU
                5  |  ESA   | COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2
                5  |  ESA   | KIRU KOUR MAJU MAS1 MAW1 MGUE MOBS NAUR NNOR ONSA
                5  |  ESA   | PTBB TONG TOW2 USN7 VILL
                5  |  GFZ   | MCIL
                5  |  GRG   | 18 18 21 GLSV GLSV LHAZ
                5  |  JPL   | RBAY RBAY
                5  |  MIT   | 18
                6  |  COD   | ANKR MCIL TIXI ANKR MCIL
                6  |  EMR   | 1 1
                6  |  ESA   | 18 18 CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                6  |  ESA   | HERS HOB2 KIRU KOUR MAJU MAS1 MAW1 MCIL MGUE MOBS
                6  |  ESA   | NAUR NNOR ONSA PTBB TONG TOW2 USN7 VILL CEDU COCO
                6  |  ESA   | DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS HOB2 KIRU
                6  |  ESA   | KOUR MAJU MAS1 MAW1 MCIL MGUE MOBS NAUR NNOR ONSA
                6  |  ESA   | PTBB TONG TOW2 USN7 VILL
                6  |  GFZ   | 19 20 21 22 DAV1
                6  |  GRG   | 18 18 GLSV LHAZ DAV1 GLSV LHAZ

    
 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   | ~05:00 | ~ 0.11 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. 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 G12 |    |    |    |    |    |    |  4 |

 8. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) all IGS products, including the IGS combined
    orbits, are based on the IGS realization of the ITRF2005 reference frame
    (IGS05). For more information see IGSMAIL #5447. The IGS05 frame is also the
    basis for the homogeneously reprocessed IGS products from GPS Weeks 730 to 1459
    (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products, are
    based on the IGS realization of the ITRF2008 reference frame (IGS08). For more
    information see IGSMAIL #6354.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.5     .5     .5      26     17     -9    -.22
       EMR  |   0 |    4.7   -5.4   -1.0      37     34    -17     .04
       ESA  |   0 |    -.1     .4    1.5      -1     11     29    -.19
       GFZ  |   0 |     .6     .3    -.0       5    -35     -5    -.17
       GRG  |   0 |    8.2   -3.4  -16.0     137      6     49    -.41
       JPL  |   0 |    4.7  -11.6   -4.4       3     -2    -14    -.45
       MIT  |   0 |    2.7   -3.2    8.4      15     29     -2     .0 
       NGS  |   0 |    3.3   -8.3    2.2      20     16    -61    -.08
       SIO  |   0 |    3.4   -1.0   10.4     -16     -5    -14    -.04

       COD  |   1 |     .2     .8     .6      17      2    -18    -.24
       EMR  |   1 |    9.4   -4.3     .2      18     30    -17    -.0 
       ESA  |   1 |    -.1    -.2    -.1     -31      2     25    -.11
       GFZ  |   1 |     .4     .5    -.3      12    -40      0    -.15
       GRG  |   1 |    9.1   -4.6   -2.4      81    -12     42    -.33
       JPL  |   1 |   10.0   -4.8     .8       4     -3    -14    -.05
       MIT  |   1 |   11.6   -3.7   11.6       1     29    -10    -.07
       NGS  |   1 |    6.5  -11.8     .3       9     17    -50    -.05
       SIO  |   1 |    8.6   -3.2    9.8      -5      4    -21     .03

       COD  |   2 |    -.1     .2    1.1      22     26     -9    -.31
       EMR  |   2 |   12.6   -2.7    -.5       1     42    -26    -.09
       ESA  |   2 |    -.1    -.6    -.0     -25     10     15    -.24
       GFZ  |   2 |    -.1    -.1     .7       0      1     14    -.29
       GRG  |   2 |    8.4   -3.8   -7.9      81     -6     43    -.21
       JPL  |   2 |    6.3   -2.9    2.2      -3      1    -14    -.69
       MIT  |   2 |    4.9   -5.7   11.2      -2     52      4    -.09
       NGS  |   2 |    6.1    -.7    8.5      35    -17     -8    -.10
       SIO  |   2 |    5.5   -2.9   16.1     -23     19     -1    -.23

       COD  |   3 |    -.2     .3    1.4      13     34    -14    -.46
       EMR  |   3 |    6.7   -1.8    -.8      12     26    -29    -.12
       ESA  |   3 |     .0    -.6    -.2     -13     14     13    -.43
       GFZ  |   3 |     .3    -.1     .3       8    -11      4    -.30
       GRG  |   3 |    6.3   -1.9   -8.7      63     -9     60    -.12
       JPL  |   3 |    5.6   -6.5     .0      -7      8      6    -.53
       MIT  |   3 |    2.6   -3.8   11.5     -10     44     -3    -.22
       NGS  |   3 |    1.0   -4.1    8.1      36     10    -10    -.14
       SIO  |   3 |    2.4    -.0   13.3     -11     20    -18    -.18

       COD  |   4 |    -.2     .7     .7      12     25    -19    -.33
       EMR  |   4 |    -.5    -.0    7.9       4     21    -33    -.23
       ESA  |   4 |     .5    -.4     .3     -21     15     26    -.40
       GFZ  |   4 |     .2    -.0    -.2      23    -11     11    -.16
       GRG  |   4 |   -2.5   -1.6   14.4      77     -7     76    -.16
       JPL  |   4 |    1.1   -6.1    6.5      15     -1     22    -.30
       MIT  |   4 |    -.6   -3.2   13.4       9     46    -20    -.09
       NGS  |   4 |    -.9    -.7    8.0      45     33     -9    -.09
       SIO  |   4 |     .8     .6    7.8     -14     28    -10     .11

       COD  |   5 |     .1     .3     .8      12     33    -30    -.48
       EMR  |   5 |    8.0   -2.5   -2.9      34     25    -45    -.11
       ESA  |   5 |     .9    -.7     .3     -26     16      0    -.37
       GFZ  |   5 |     .6     .6     .6      14    -13    -12    -.38
       GRG  |   5 |    -.8   -5.9    9.5      93    -50    100    -.17
       JPL  |   5 |    5.1   -8.7    4.1       7     -4     -3    -.55
       MIT  |   5 |    2.4   -3.8    7.4       0     37     -8    -.11
       NGS  |   5 |    5.0   -4.6    3.8      47     13      2    -.39
       SIO  |   5 |   -1.8   -2.8    8.2     -18      3    -16    -.07

       COD  |   6 |    -.6     .6     .1      21     25    -24    -.28
       EMR  |   6 |    4.9     .5    2.5      37     34    -33    -.01
       ESA  |   6 |     .1    -.4     .1     -26     25    -13    -.21
       GFZ  |   6 |     .2     .4     .3      14    -16      4    -.24
       GRG  |   6 |    4.2   -6.4    8.9      84    -24     74    -.03
       JPL  |   6 |   11.3   -4.6    4.9       8     -3     -4    -.56
       MIT  |   6 |    5.2   -1.7    7.3      -4     27    -25    -.01
       NGS  |   6 |    1.6   -3.9    9.2      27     26      7    -.09
       SIO  |   6 |    3.3     .4   15.9     -22     -8     17     .05


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

11. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        ftp://igs.org/igscb/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        ftp://igs.org/igscb/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        ftp://igs.org/pub/station/general/igs14.atx


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

Most combination statistics are with respect to the combined orbits and
consist of seven parts. The first, Table 1, summarizes all statistics for
the week. It contains means and standard deviations over the week of
satellite ephemeris and clock correction transformation parameters for
each centre (Table 1.2056.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2056.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 2.2056.[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 3.2056.[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 5.2056.0-6). 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 2056 summary.                       (Jun 02, 2019 - Jun 08, 2019)

Table 1.2056.a   GPS week: 2056   MJD: 58636.000-58642.000

         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  253|    0    -1    -2     8   -19   -18  -.04    9    9 |    -436    -211      7     98
        |    0     0     1     9    18    11   .03           |     153     215
emr   80|    0    -1     1   -11    -2    42   .18   12   12 |  141711    -717     18    105
        |    0     0     1     6    16     4   .02           |    1609     679
esa  150|    0     0    -5   -17     6    -8  -.11    9    9 |    -578     174      7    116
        |    0     0     1    13    14     8   .02           |    1908     565
gfz  176|    0     1    -1    11    -5    -7   .05   10    9 |     136    -281     11    207
        |    0     0     2    15    23    12   .05           |     321     429
grg   99|    1     0    -1   -14     3     9  -.04   12   11 |     126    -161      9    139
        |    0     0     7    13    20    47   .04           |     156     162
igr  n/a|    0     0    -2   -19   -30   -13  -.03    4    4 |    4855    -952     12     76
        |    0     0     1    13     5     6   .02           |    1660     731
jpl   80|    0     0     2    13    -3     8   .16    8    8 |  213761    -548      8     81
        |    1     0     0    11    13    13   .01           |    1232     668
mit  350|    0     0     4    -7     2    14  -.21   14   13 |    5095     267     90   1611
        |    0     0     2    36    27    10   .01           |    3833     466
ngs  206|    0     0     1     7    11   -14  -.03    9    7 |    -465    -148    956   2048
        |    1     1     3    13    11     5   .02           |     238     427
sio  326|   -2    -1     3     1     3   -21  -.09   16   16 |     ---     ---    ---    ---
        |    0     0     1    19    26    15   .03           |     ---     ---


Table 1.2056.b   GPS week : 2056   MJD: 58636.000-58642.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    4    4    4    4    4    4    4 |
   2  |    4    7    4    4    4    4    4 |
   3  |    3    3    3    3    3    3    3 |
   4  |   15   22   13   29   14    0   22 |
   5  |    4    4    4    3    4    4    3 |
   6  |    4    4    4    4    4    3    4 |
   7  |    4    4    4    4    5    5    4 |
   8  |    3    3    3    3    3    3    4 |
   9  |    3    3    3    3    3    3    3 |
  10  |    3    3    2    3    3    3    3 |
  11  |    3    3    4    4    4    3    3 |
  12  |    4    5    4    4    5    5    5 |
  13  |    4    4    4    4    4    3    4 |
  14  |    4    4    4    4    4    4    4 |
  15  |    4    4    3    3    4    3    4 |
  16  |    4    4    4    4    5    4    4 |
  17  |    4    3    4    3    4    3    3 |
  18  |    6    5    5    5    5    6    5 |
  19  |    4    4    5    4    4    4    5 |
  20  |    4    4    3    3    4    4    4 |
  21  |    6    7    4    4    4    5    4 |
  22  |    4    4    3    3    3    3    4 |
  23  |    4    3    3    3    4    4    4 |
  24  |    4    4    4    4    5    4    4 |
  25  |    4    4    4    4    4    4    4 |
  26  |    3    4    3    4    4    3    3 |
  27  |    4    4    3    3    3    3    4 |
  28  |    4    4    4    4    4    4    4 |
  29  |    5    4    4    5    4    4    4 |
  30  |    4    5    5    4    0    5    5 |
  31  |    3    3    3    4    3    4    4 |
  32  |    3    4    3    3    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 2.2056.0   GPS week: 2056   Day: 0   MJD: 58636.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  251|    0    -1     0     2   -33   -30   .00    9    8 |    -555    -173      6     86
emr   80|    0    -1     0    -7    -6    52   .19   11   11 |  142906     359     16    103
esa  150|    0     0    -6   -20     2     3  -.11    9    9 |    3671     338      9    102
gfz  171|    0     1     0   -12   -45   -20  -.04   11   10 |     235    -149     12    218
grg  101|    1     1   -12     6   -10   -29  -.05   14   12 |     245    -196     11    164
igr  n/a|    0     1     1   -39   -35   -21  -.06    4    4 |    5826     474     10     64
jpl   80|   -1     0     2    13    19    22   .15    7    7 |  214458     537     11     84
mit  350|    0     0     6    10    25    18  -.19   14   14 |    -264     -73     94   1512
ngs  203|    0     1     5     7    23   -19  -.03    9    8 |    -541    -189    819   1948
sio  323|   -1     0     7     0    22   -16  -.06   16   16 |     ---     ---    ---    ---

Table 2.2056.1   GPS week: 2056   Day: 1   MJD: 58637.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  253|    0     0    -3     7   -23   -11  -.07    9    9 |    -436    -165      7     86
emr   80|    0    -1     1    -4    20    41   .22   12   12 |  143850   -1690     17     90
esa  150|   -1     1    -5   -27     2    -8  -.09   10    9 |   -1025     197      7     96
gfz  177|   -1     1    -1     0   -16    -1  -.00   11   10 |     654   -1047     15    197
grg   96|    0     0    -3   -10    33   -32  -.03   15   13 |     349    -391      9    132
igr  n/a|    0     0    -1   -11   -22    -2  -.04    4    4 |    7009   -1479     11     68
jpl   80|    1     0     2    34   -19    20   .15    8    8 |  215558   -1436     10     87
mit  350|    0     0     6   -26    16    11  -.23   15   14 |    6527     381     61   1598
ngs  207|    2    -1     1    -8    15   -17  -.00   10    8 |    -148    -650   1017   2247
sio  329|   -1    -1     3    -5     8   -34  -.12   16   17 |     ---     ---    ---    ---

Table 2.2056.2   GPS week: 2056   Day: 2   MJD: 58638.000                            

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  252|    0    -2    -2    17   -23    -6  -.06    9    8 |    -103    -615      7    109
emr   80|   -1    -1     1   -19    16    42   .18   11   11 |  142590    -670     19    125
esa  150|    0     0    -7   -32    -1    -3  -.11    9    9 |   -1058    -383      8    133
gfz  176|    0     1     0    29    25    11   .07   10    9 |      20     162     10    226
grg   98|    1     0    -5   -21    15   -19  -.00   11   10 |     231    -296     10    131
igr  n/a|    0     1    -1   -16   -36   -11  -.04    4    4 |    5956    -830     16     87
jpl   80|    0     1     3     5     2   -11   .17    7    7 |  214466    -545      8     77
mit  350|    0     0     5    31   -23    -2  -.21   14   13 |    6137     310     58   1529
ngs  204|    1     1     3    -4    -6    -4  -.05    9    7 |    -220    -444    992   1999
sio  329|   -2    -1     2     5   -20   -16  -.09   15   17 |     ---     ---    ---    ---

Table 2.2056.3   GPS week: 2056   Day: 3   MJD: 58639.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  254|    2     0    -3     1    -7    -3  -.03    9    8 |    -544      42      7     92
emr   80|    0    -3     2    -5     2    40   .15   11   11 |  142037    -685     21    125
esa  150|    0     0    -4     7    -8    -8  -.14    9    9 |   -1624     601      6    103
gfz  178|    0     1     0    19    -7    -1   .10   10    9 |      93    -172     12    196
grg  100|    1     0    -9    -9    23   -18   .02   11   10 |     -53     119      9    116
igr  n/a|    0     0    -2     3   -28   -16  -.01    4    4 |    5353    -947     11     74
jpl   80|   -1     0     3     0    -7    12   .17    8    8 |  213965    -495      8     79
mit  350|    0     0     5   -51     4    10  -.19   14   13 |    6871     749     80   1515
ngs  207|    0     0     5    30    13   -20  -.05    9    7 |    -471     -50    849   2116
sio  333|   -2     0     3    -6   -17    -1  -.08   16   17 |     ---     ---    ---    ---

Table 2.2056.4   GPS week: 2056   Day: 4   MJD: 58640.000                            

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  255|    1    -2    -1    -4   -44   -33  -.05   11   10 |    -453    -364     10    105
emr   80|    0    -1     0   -20   -26    41   .19   11   11 |  141288   -1317     18     99
esa  150|    0     0    -5   -23     0    -3  -.12    9    9 |   -1218    -311     10    122
gfz  178|    0     1     0     4    17    -7   .05   10    8 |    -109    -538     11    221
grg  100|    1     1     6    -8    -7    25  -.07   12   11 |      77    -143      8    165
igr  n/a|    0     1    -3   -23   -24   -11  -.02    4    4 |    4440   -1479     13     83
jpl   80|    0     0     2    13     2    19   .17    8    8 |  213438   -1191      7     72
mit  350|    0     0     1    47    39    11  -.21   14   13 |    8120     569    152   1635
ngs  208|    0     1     0     0     7   -18  -.03    8    7 |    -484    -331   1274   2104
sio  330|   -2    -2     0    38    15   -18  -.05   18   18 |     ---     ---    ---    ---

Table 2.2056.5   GPS week: 2056   Day: 5   MJD: 58641.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  253|    1    -1    -2    20    12   -25  -.05   11   11 |    -464     -97      8    127
emr   80|   -1     0     0   -16    -7    43   .20   11   11 |  139614    -182     18    105
esa  150|    0     1    -3   -17    29   -17  -.12   10    9 |   -1906    1119      7    149
gfz  179|    0     1    -2    26     2   -24   .04    9    9 |    -318     181     10    236
grg  102|    1     0     6   -34   -19    58  -.06   12   10 |     -69     -83      9    152
igr  n/a|    0     0    -3   -25   -32   -17  -.02    4    4 |    2882    -712     12     79
jpl   80|    0     0     3     6    -3    -6   .16    7    7 |  212091     -20      8     84
mit  350|   -1     0     3   -22   -12    30  -.21   14   12 |    -455    -612     76   1754
ngs  210|    0     0    -3    14     2    -9  -.01    8    7 |    -882     692    774   1867
sio  324|   -2     0     2     7   -28   -16  -.14   15   16 |     ---     ---    ---    ---

Table 2.2056.6   GPS week: 2056   Day: 6   MJD: 58642.000                            

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|    1    -2    -2    11   -17   -16  -.00    9    9 |    -497    -108      8     87
emr   80|   -2     0     2    -9   -17    36   .16   13   13 |  139692    -840     17     93
esa  150|    0     0    -4    -5    24   -21  -.11   10   10 |    -892    -343      7    108
gfz  177|   -1     1    -6    15   -14   -10   .11   11   10 |     381    -409     11    158
grg  101|    2     0     4   -26    -9    86  -.08   13   11 |     104    -142     10    114
igr  n/a|    0     1    -2   -23   -35   -10  -.03    4    4 |    2525   -1691     11     78
jpl   80|    0     1     2    21   -21     2   .16    8    8 |  212356    -688      8     85
mit  350|    0     0     2   -36   -35    21  -.21   14   13 |    8731     548    109   1734
ngs  206|    0     0     2    15    23   -13  -.03    8    7 |    -511     -65    970   2058
sio  320|   -1     0     2   -24    45   -49  -.11   14   14 |     ---     ---    ---    ---

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

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

Table 3.2056.0   GPS week: 2056   Day: 0   MJD: 58636.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   10   14   14    8   11    5    9    9    9   10    3 |    25   24   22   22   25   22   23   21   24   21    22
   2E |   12    9    8   13   17    5    8   13    7   15    4 |    70   75   77   73   76   72   74   77   76   75    74
   3  |   11    8    4   10   11    4    7    8    7   13    3 |    17   26   20   20   20   19   28   19   19   24    21
  X4  |   10  ---  ---  ---   20   12  ---  ---  ---  ---   14 |    74  ---  ---  ---   21   67  ---  ---  ---  ---    66
   5  |   10    8   11    8   11    2    7   12    6   14    3 |    45   44   48   43   47   43   47   35   41   39    43
   6E |   14   12   13   11    9    5    9   10    9   16    4 |    28   34   31   29   32   29   33   30   31   34    29
   7E |    8   13    9   14   17    4    7   15    9   17    4 |    38   42   40   39   43   39   38   39   43   39    39
   8  |    5    9   12   11   13    3    8   10    8   10    3 |    21   26   25   25   25   21   25   19   22   19    22
   9  |    7    8    6   10    9    4    6    5    5    8    2 |    19   27   22   21   23   20   28   22   22   28    23
  10  |    7    5    5    7    8    4    8    9    8   10    2 |    17   24   17   18   19   17   25   15   17   18    18
  11E |    6    9    8    9   12    3    7    9    9   12    3 |    25   31   31   25   27   27   31   30   27   32    28
  12  |    9   17    8    6    9    5    5   21    9   20    4 |    33   32   26   27   28   27   28   27   28   29    26
  13  |   11    9   10    9   12    3    8   14    8   23    4 |    24   33   22   25   27   25   31   31   28   36    26
  14  |    9    9    5    6   12    4    5   24    8   21    4 |    17   21   16   17   20   17   18   29   20   22    17
  15  |    8    7   10    8    8    3    6   16    9   24    3 |    43   47   48   45   43   43   44   35   40   42    43
  16  |    8   20    7   10   11    5    7   15   11   21    4 |    26   26   26   24   25   24   25   29   26   33    24
  17  |    5    7    9   13   10    3    5   13   11   14    3 |    25   30   27   27   29   27   29   28   28   27    26
  18E |   17   13   14   21   12    7   11   20   18   17    5 |   107  105   94  111  101   99  104   95  101   95   101
  19  |    7    9    7   13   10    4    5   24   10   16    4 |    29   31   28   30   28   27   29   23   30   23    27
  20  |    8   10    6    9    9    4    8   17    6   18    3 |    20   21   15   23   21   19   19   23   18   25    18
  21E |    8    9    8   21   45    7    8   13    9   16    5 |    29   30   30   33   54   28   30   28   29   31    30
  22  |    7    8    7    8   10    4    5   16   10   20    3 |    21   26   19   18   21   21   25   25   25   30    21
  23  |    8   16    6    6    9    4    6   12    6   19    3 |    22   23   20   21   20   21   24   24   23   32    22
  24E |    5   11   15   12   16    4    9   13    9   15    4 |    45   45   41   39   48   41   44   49   44   48    43
  25  |    7    9   14    9   10    3    7   10    6   14    3 |    24   28   24   21   26   22   25   26   26   26    23
  26  |    6    8    9   10    9    3    7   11   13    9    3 |    31   31   31   30   32   28   31   27   34   33    30
  27  |    5    9   11   12   14    5    7   11   11   12    3 |    20   21   23   25   24   18   21   17   19   17    20
  28  |    8   10    7    7   13    4    6   19   12   15    3 |    40   40   39   41   43   39   41   39   45   40    40
  29  |    9   21    8   10   12    5    8   17    8   21    4 |    28   33   28   31   28   28   30   28   28   25    27
  30E |    8   14   15   16   18    3   10    9    9   11    4 |    22   22   21   22   26   20   25   22   23   23    21
  31E |    7    8    7    8   14    3    6   13    9   15    3 |    51   53   49   50   54   51   50   48   52   47    50
  32  |   11    8    5    9   11    4    6   10    6   15    3 |    20   26   17   15   20   16   26   20   19   28    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11    9   11   14    4    7   14    9   16      |T   33   34   31   31   33   31   33   31   32   33    32
 WRMS |    8   11    9   10   12    4    7   14    8   16      |NE  30   30   28   28   28   29   30   26   28   29    30
 MEDI |    8    9    8   10   11    4    7   13    9   15      |MD  25   30   26   25   27   27   29   28   28   30    26

Table 3.2056.1   GPS week: 2056   Day: 1   MJD: 58637.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    9   11   12    9   13    3    8    8   10   11    3 |    26   29   25   29   32   26   26   26   27   26    26
   2E |   19   19   16   15   26    5   15   23   20   25    7 |    60   62   71   60   61   63   61   75   70   76    63
   3  |    8    7    5   10    9    3    7    9    8   12    3 |    22   29   25   23   22   22   29   21   22   22    23
  X4  |   27  ---  ---  ---   28   17  ---   39  ---  ---   22 |    66  ---  ---  ---   27   51  ---   67  ---  ---    55
   5  |    7    9   10   10   10    3    7   14    8   17    3 |    31   35   35   33   34   30   34   26   31   32    32
   6E |    8    9   13   12   13    3    9   12    9   14    4 |    18   23   17   17   24   17   23   19   21   21    18
   7E |    8   10   10   19   15    3    7   17    8   17    4 |    35   35   36   32   40   34   33   37   37   38    34
   8  |    4    9   10    8   13    2    7   10    7   11    3 |    26   30   28   27   31   25   28   24   26   27    27
   9  |    6    7    6   11   10    3    8    6    7    7    2 |    25   31   26   26   28   24   31   28   24   29    27
  10M |    5    9    5    6    8    3    6    8    8    9    2 |    18   25   19   17   22   19   24   17   17   22    19
  11E |    6   10    7   10    9    2    7   10    7   12    3 |    21   26   23   22   29   21   22   23   21   25    22
  12M |   13   14    8   12    9    5   10   22   13   21    4 |    38   36   32   32   34   33   35   33   37   42    34
  13M |   10   12   12    9   10    3    8   14    7   22    4 |    27   36   27   31   32   28   34   31   31   36    30
  14M |    9   11    5    7   13    3    5   25    8   21    4 |    24   21   20   23   21   21   23   30   21   31    21
  15  |    9    9   12    8    8    3    5   17    7   26    4 |    31   31   31   28   28   28   30   23   30   30    28
  16  |    9   22    6    9   13    4    8   14    8   20    4 |    24   25   25   27   25   25   23   27   24   27    23
  17  |    6    6    6   15    9    2    4   14   10   15    3 |    26   32   28   27   28   27   30   27   31   29    28
  18E |   13   13   11   15   10    5   13   17   15   12    4 |    90   88   82   86   89   84   89   81   82   83    85
  19  |    9   10    7   14   10    3    5   25   15   16    4 |    25   30   25   29   25   25   27   21   33   22    25
  20M |    6   13    9    8    8    3    5   16    9   18    3 |    22   26   20   23   24   20   21   21   21   24    21
  21E |   12   15   10   18   55    7    8   13    9   17    6 |    40   42   39   42   49   38   38   37   39   38    37
  22  |    9    7    6    7    7    4    6   17    8   21    3 |    20   25   20   19   21   21   23   24   23   28    21
  23  |    5   16    6    6   11    4    6   13    6   17    3 |    19   20   17   20   19   19   19   21   19   26    18
  24M |   11   13   16   12   13    4    8   11   11   15    4 |    35   32   35   33   34   32   34   31   32   30    32
  25M |    9   14   12   11    8    4   11   19    9   14    4 |    28   33   26   25   26   23   27   27   28   26    25
  26M |    8   11    8   10   13    3    7    9   11    9    3 |    29   31   29   28   31   28   29   30   32   31    29
  27  |    5   11   10    9   14    3    9   11    9   10    3 |    26   28   27   29   31   25   25   23   26   26    26
  28  |    9   13    9    9   11    4    6   17   11   18    4 |    35   39   36   38   38   33   33   29   36   34    34
  29  |    7   16    7    9   14    4    8   19    9   19    4 |    30   29   29   30   30   28   28   25   30   24    28
  30E |   10   17   13   15   16    4   11   11   10   12    4 |    22   25   22   23   27   22   26   23   25   24    23
  31E |   10   11    5    9   13    3    5   12    7   12    3 |    54   54   51   52   52   51   53   50   52   53    52
  32M |   16    9    5    7   10    4    6    9    8   13    3 |    33   32   30   30   32   29   32   30   29   34    30
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   12   10   11   15    4    8   15   10   16      |T   32   33   30   31   32   30   31   31   31   32    31
 WRMS |    9   12    9   10   13    4    8   14    8   17      |NE  29   29   27   27   27   27   27   27   27   27    28
 MEDI |    9   11    9   10   11    3    7   14    9   15      |MD  26   31   27   28   29   26   29   27   29   29    27

Table 3.2056.2   GPS week: 2056   Day: 2   MJD: 58638.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   10   11   13    9   13    4    8    9    7    9    3 |    19   20   18   22   26   18   21   19   18   19    18
   2E |   16   11   11   12   11    3    7   15   11   17    4 |    54   61   61   52   53   55   58   63   53   63    56
   3  |   10    7    4    7   10    4    6   10    8   13    3 |    17   27   21   24   18   21   28   21   20   25    22
  X4  |   15  ---  ---  ---   12    9  ---   27  ---  ---   13 |    50  ---  ---  ---   23   50  ---   46  ---  ---    51
   5  |    6    9   11    7    9    4    6   14    8   18    3 |    32   35   36   32   34   32   36   27   33   32    33
   6E |   12   13   12   11   12    3    9    9   10   11    4 |    20   22   16   14   23   17   22   19   19   20    17
   7E |    9   11   11   16   11    4    6   18   10   15    4 |    43   40   42   42   40   40   39   41   40   42    40
   8  |    6    8   10    9   12    3    7   10    6    9    3 |    17   22   20   21   26   17   22   18   19   18    19
   9  |    7    7    5    8    9    4    8    5    7    8    2 |    21   27   22   22   21   21   28   23   20   26    23
  10  |    5    5    5    5    6    3    5    8    6   11    2 |    14   21   15   17   15   14   21   16   13   20    16
  11E |    7    7    8    9   21    3    7   10    6   11    3 |    21   24   22   19   30   20   21   21   20   24    21
  12  |   10   13    6    7   10    4    7   20    9   18    3 |    50   51   47   51   51   49   49   47   51   48    49
  13  |    8    9   10    8   10    3    7   14    8   21    3 |    19   27   18   21   22   20   27   26   23   32    22
  14  |    9    9    8    6    8    3    5   24    5   21    3 |    11   17   13   15   15   14   16   25   16   21    13
  15  |    6    7    9    8    7    3    5   16    7   22    3 |    33   36   36   34   30   33   33   26   31   33    32
  16  |    8   21    6    8   10    5    7   13    9   18    4 |    20   20   18   20   21   19   18   19   17   21    17
  17  |   10    6    7   15   11    4    5   13   12   14    3 |    23   25   20   27   23   22   26   21   23   21    21
  18E |   14   16   12   15   10    6   13   17   18   13    5 |    84   81   70   83   79   75   80   74   72   73    77
  19  |    8   11    7   16   11    4    7   24   13   15    4 |    20   24   18   26   20   19   23   18   24   15    18
  20  |    6    8    9    7    7    2    5   14    7   17    3 |    16   18   16   22   19   16   18   20   16   22    16
  21E |    8   12    7   17   17    4    8   11    7   13    4 |    23   27   23   27   32   22   24   21   24   21    23
  22  |    8    7    7    6    8    4    5   17    7   19    3 |    19   22   17   20   17   19   23   24   19   26    19
  23  |    7   15    6    6   10    5    6   11    6   16    3 |    14   15   12   15   14   12   15   14   16   20    13
  24  |    8   12   15   11   12    5   11   10   10   16    4 |    23   26   23   23   27   23   24   26   26   27    23
  25  |    6   12   13    8    8    4    8    9    7   14    3 |    21   23   22   20   22   20   24   22   21   25    21
  26  |    7    8    9   10    9    3    6   11    8   10    3 |    28   28   27   28   32   28   30   27   28   29    28
  27  |    6   10   11    9   11    2    6   10    6    8    3 |    18   20   20   23   24   16   19   15   19   15    18
  28  |    7   13    7   10   10    3    7   14   14   16    3 |    44   43   44   49   46   43   44   41   48   42    44
  29  |    8   17    7    8   12    4    9   19    9   22    4 |    20   19   17   21   22   18   19   19   20   17    17
  30E |   10   14   12   15   18    3   10   10   13   10    4 |    21   19   17   19   28   17   20   17   18   17    19
  31E |    8   11    6    8   12    5    6   13    8   14    3 |    45   46   42   45   46   42   46   42   43   41    44
  32  |   10    7    4    7    7    3    5    9    5   14    2 |    19   27   18   21   17   18   25   21   20   23    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11    9   10   11    4    7   14    9   15      |T   27   29   26   28   28   26   29   27   26   28    27
 WRMS |    8   11    9    9   10    4    7   13    7   17      |NE  24   25   23   25   24   24   25   23   23   23    24
 MEDI |    8   11    8    8   10    4    7   13    8   14      |MD  21   25   20   22   23   20   24   21   20   24    21

Table 3.2056.3   GPS week: 2056   Day: 3   MJD: 58639.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    9    9   10    5   14    4    8    8    8   12    3 |    26   25   23   27   31   24   26   25   27   26    25
   2E |   12   10   10    9   16    4    8   15   10   21    4 |    53   61   62   56   58   57   60   64   56   65    58
   3  |   10    8    6    7    9    5    6    8    6   13    2 |    26   30   24   29   24   26   29   24   25   28    26
  X4  |   22  ---  ---  ---  ---   29  ---   37  ---  ---   29 |    55  ---  ---  ---  ---   28  ---   39  ---  ---    44
   5  |    5    8    9    8    6    4    7   14    6   18    3 |    40   40   43   38   42   38   44   29   35   37    39
   6E |    6   10   12    9   12    4    9    8    7   14    3 |    22   25   20   21   24   21   27   25   27   23    22
   7E |    8   11   10    8   15    4    7   19   10   17    4 |    49   47   50   47   52   48   48   50   50   50    48
   8  |    6   10   11   10   11    4    7    9    7   11    3 |    28   28   27   26   28   25   27   24   27   29    26
   9  |    6    6    6    6    8    2    7    5    7   10    2 |    24   30   28   27   25   27   33   26   26   32    27
  10  |    8    7    5    9    6    3    7    7    8   10    2 |    16   22   17   17   16   16   23   15   16   21    17
  11E |    6    9    7   11   18    3    6    8   11   12    3 |    32   32   30   32   38   30   31   31   30   34    31
  12  |    9   16    8   10    9    5    6   21    9   16    4 |    78   76   75   76   75   74   75   73   73   78    75
  13  |    9    9    9    8    7    2    8   13    8   17    3 |    23   30   20   25   22   24   30   28   27   34    25
  14  |    9    8    6    9    9    4    6   24    7   22    4 |    21   22   17   25   16   20   20   29   21   25    19
  15  |    6    9    9    8    5    2    7   14    5   20    3 |    40   40   42   39   40   39   38   27   36   40    38
  16  |   11   21    7    8   10    5    9   14    9   21    4 |    21   24   20   22   22   20   21   21   20   25    19
  17  |    6   11    7   10    8    4    6   12    8   16    3 |    21   26   19   31   25   23   27   21   25   24    23
  18E |   15   14   11   16   12    7   13   16   17   12    5 |    91   92   86   92   92   86   92   86   86   88    89
  19  |    5   14    7    7    9    4    7   24    9   20    4 |    22   25   19   24   22   21   24   21   23   25    20
  20  |    8   10    7    9    6    3    5   15    7   17    3 |    19   21   15   19   17   17   20   23   20   27    18
  21E |   12    9    9   15   15    4    7   13    6   15    4 |    39   39   39   39   38   38   40   35   39   38    38
  22  |   10    7    6    6    9    4    6   15    9   18    3 |    26   28   23   28   23   24   26   28   25   30    25
  23  |    6   16    6    6    9    3    6   11    8   17    3 |    19   20   18   23   20   20   20   19   22   27    19
  24  |   13   11   14    7   11    4   10   10    9   12    3 |    37   35   38   37   37   33   36   34   33   38    35
  25  |   10   11   13   10    9    2    8    8    8   12    3 |    26   29   25   26   27   24   27   26   22   29    25
  26  |   10   11    9   14    9    4   10   11    9   11    3 |    29   31   30   31   30   28   31   27   30   29    29
  27  |    8   10   10   10    9    3    7   10    7   10    3 |    29   27   27   26   28   24   24   24   26   28    25
  28  |    8   12    7   14    8    4    7   17    9   20    4 |    26   27   27   33   26   28   27   21   25   27    25
  29  |   10   17    5   13   10    3    8   19   12   19    4 |    26   24   23   29   24   23   24   22   25   22    23
  30E |    8   13   12    8   15    4   11   10    9   13    4 |    22   24   22   22   28   21   24   22   24   23    22
  31E |    9   10    6   10   15    3    7   14   11   13    3 |    56   58   55   53   58   55   55   55   54   54    55
  32  |    8    6    4    7    8    2    5    8    9   12    2 |    26   29   25   27   24   25   30   26   23   29    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11    9   10   11    4    8   14    9   16      |T   33   34   31   33   33   31   34   31   32   35    32
 WRMS |    8   11    9    9   10    4    8   13    7   17      |NE  28   28   26   28   26   26   28   24   26   28    27
 MEDI |    8   10    8    9    9    4    7   13    8   15      |MD  26   29   25   28   27   25   27   26   26   29    25

Table 3.2056.4   GPS week: 2056   Day: 4   MJD: 58640.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |   12   11   15    7   12    3    8    9    7   13    3 |    18   19   18   17   23   17   21   19   17   18    17
   2E |   11    9   10    8   13    3    9   16    9   24    4 |    52   60   62   55   56   58   60   63   57   64    58
   3  |    7    6    5    7   11    3    6    8    6   15    2 |    16   27   18   21   20   18   26   20   19   25    20
  X4  |   18  ---   10  ---  ---   31  ---   30  ---  ---   13 |    65  ---    9  ---  ---   66  ---   52  ---  ---    56
   5  |    9    7    9    7    7    3   10   16    9   22    3 |    32   34   34   33   31   32   36   23   31   30    31
   6E |    6    8   12    9    9    3    9   11   10   15    3 |    20   24   17   19   22   18   23   20   23   22    19
   7  |   12   15    8    8   17    6    8   18   11   19    4 |    47   43   45   45   40   45   44   44   45   42    43
   8  |    5    9   11    9   13    3    7    9    6   16    3 |    17   20   18   19   23   17   20   16   16   23    18
   9  |    7    7    6    6    7    4    7    8    7   14    2 |    17   26   18   18   19   18   28   23   17   31    21
  10  |    9    7    4    8    8    2    7    9    7   12    2 |    14   22   15   17   17   14   21   14   15   20    15
  11E |    9   11    7    9   14    3    7   10    7   17    3 |    18   25   22   18   28   20   23   22   20   28    21
  12  |   14   19    6   12   11    7   11   23    8   23    4 |    81   83   82   86   85   84   85   81   85   83    83
  13  |   15   10    9    7   10    3    8   12    9   21    3 |    20   28   19   26   25   23   29   26   26   33    24
  14  |   12    8    7   10    6    3    6   23    8   20    4 |    18   18   15   22   20   16   17   26   16   22    16
  15  |    8    9    6    7    9    3    9   15    8   21    3 |    33   35   34   31   29   31   36   27   30   35    31
  16  |   12   17    6   11   15    6    8   14   10   22    4 |    21   20   18   22   21   19   19   20   21   25    18
  17  |    9    8    7   11   10    4    5   13    7   21    3 |    24   28   21   26   26   23   25   23   24   30    23
  18E |   12   14   11   17   16    7   11   15   16   14    5 |    82   80   73   81   86   77   79   75   74   73    77
  19  |    9   12    7    9   11    4    6   25    8   23    4 |    20   26   19   24   24   21   23   19   24   26    20
  20  |    8   11    6    8    9    4    7   15    8   17    3 |    17   18   14   20   21   15   16   18   18   22    15
  21E |   20    9    6   17   13    5    8   12    7   17    4 |    32   25   24   28   30   22   25   23   24   22    25
  22  |    9    6    7    7   11    3    6   13    7   18    3 |    21   23   18   22   26   21   23   24   21   27    21
  23  |    7   17    5    6    9    4    6   14    5   21    3 |    17   20   16   19   19   18   20   20   19   30    18
  24  |   12   12   15   11   24    6   10   10    8   14    4 |    31   32   33   30   36   32   33   32   33   33    31
  25  |   11   11   13   10   11    4    9   10    7   13    3 |    24   24   22   23   23   20   22   23   20   25    21
  26  |   12   11    9   14   13    4    9   11    8   20    4 |    28   28   27   31   31   27   29   25   29   31    27
  27  |    7   11   11    9    9    3    7    7    7   10    3 |    20   20   18   20   23   17   21   15   16   21    18
  28  |    9   13    6    9   11    6    6   15    9   23    3 |    40   41   38   43   42   38   41   36   42   42    40
  29  |   11   18    5    8   11    5    9   19    8   20    4 |    23   23   19   23   22   20   21   19   21   22    20
 X30E |    3  ---  ---  ---  ---   17  ---  ---  ---  ---    0 |    36  ---  ---  ---  ---   29  ---  ---  ---  ---    33
  31E |    8   10    5    7   14    5    6   14    7   13    3 |    45   50   46   45   48   45   48   45   48   43    46
  32  |   15    8    5    8    7    3    6    8    9   15    3 |    23   25   18   21   21   18   24   20   21   25    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11    9   10   12    4    8   14    8   18      |T   30   31   27   30   31   29   31   29   29   32    29
 WRMS |   10   11    9    8   11    4    8   13    7   18      |NE  26   26   21   24   25   25   26   24   23   28    25
 MEDI |    9   10    7    8   11    4    7   13    8   17      |MD  23   25   19   23   24   21   24   23   21   27    21

Table 3.2056.5   GPS week: 2056   Day: 5   MJD: 58641.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    9   11   12    9   12    3    6    7   10   12    3 |    20   22   18   22   25   18   21   19   19   15    18
   2E |    9    8   10   10   12    5    6   16    9   17    3 |    53   56   58   53   51   54   56   60   53   61    55
   3  |    9    8    5    9   10    4    6    5    7   10    2 |    20   27   19   22   22   20   28   22   22   25    22
  X4  |    2  ---  ---  ---  ---   21  ---  ---  ---  ---    0 |    48  ---  ---  ---  ---   50  ---  ---  ---  ---    48
   5  |    8    7   10    6    7    3    8   16    8   18    3 |    28   28   27   26   25   27   31   21   28   27    26
   6E |    6    9   11    8    7    5    6    9    9   13    3 |    21   23   19   18   20   20   24   20   22   21    20
   7  |   10   13   10    9   20    5    8   20   10   17    4 |    42   38   41   41   42   40   39   40   37   41    38
   8  |    8    9   11   10   11    4    8    8    7   10    3 |    18   22   18   19   24   17   21   17   18   19    18
   9  |    7    8    5    7   10    5    5    5    6   10    2 |    19   25   18   19   18   17   26   18   17   26    20
  10  |    9    7    6    7    9    4    6    7    7   12    2 |    16   24   17   17   20   18   22   15   19   19    17
  11E |   11   10    7    9   13    3    6    8    8   10    3 |    34   35   37   31   41   33   33   34   33   33    34
  12  |   17   17    8    9   13    5    8   21    7   18    4 |    99   98   96   98   96   96   95   97   95   94    95
  13  |    8    9   10    7    6    4    7   13    6   19    3 |    17   24   16   17   21   17   25   20   19   30    20
  14  |   13    8    7    9    6    4    5   22    8   20    3 |    18   17   14   20   19   15   16   25   18   18    15
  15  |    8    8    7    6    6    3    5   14    6   19    3 |    29   34   33   30   30   31   33   27   35   36    31
  16  |   13   17    7    8   13    4    7   14    8   21    4 |    23   16   18   18   21   18   16   23   17   23    17
  17  |    7    8    6   11    8    2    4   13    7   16    3 |    19   24   18   24   22   21   23   20   24   23    20
  18E |   14   16   24   17   12    7   13   14   18   16    5 |   107  105  103  102  109   99  104   96   95   97   101
  19  |   14   12    7   13    8    5    5   26   10   15    4 |    25   26   22   26   23   21   25   22   23   20    20
  20  |   10   10    8    7   10    4    6   16    6   17    3 |    16   18   12   15   20   14   17   19   15   21    14
  21E |   17   10    7   13   28    4    6   13    5   15    4 |    28   24   21   25   34   23   22   18   24   17    22
  22  |    8    8    8    6   10    3    5   12    8   17    3 |    27   30   24   28   32   26   29   30   27   31    27
  23  |    8   17    6    6    9    3    5   13    7   18    3 |    18   17   16   18   18   16   16   19   17   27    16
  24  |   11   11   15   12   13    7   11   11    7   13    4 |    35   38   33   37   42   37   38   35   34   35    35
  25  |   13   12   15    8   10    4    8   11    8   13    3 |    23   24   23   20   24   19   21   20   20   23    20
  26  |   10   12   10   10    8    3    7    9    8   10    3 |    36   34   33   31   36   32   33   32   34   35    33
  27  |    8    9   11    7    9    3    7    8    9    8    3 |    24   23   20   21   27   20   21   20   20   20    21
  28  |    9   11    6    8   11    3    6   14   11   17    3 |    35   37   36   37   40   34   39   31   38   36    36
  29  |   12   16    7    9   10    3    6   15    5   17    3 |    24   23   17   23   20   19   18   21   20   17    19
 X30  |   12   14   12   21   14    7   11    9  ---   11    5 |    43   39   38   39   40   42   42   37  ---   41    42
  31  |   20    9    6    9   14    6    7   14   10   13    4 |    80   74   75   80   75   74   77   70   75   74    76
  32  |   14    6    5    7    8    4    4    8    8   15    3 |    26   28   20   24   21   23   27   22   21   25    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11   10    9   12    4    7   14    8   15      |T   33   33   30   32   34   31   33   31   31   33    31
 WRMS |   11   11    9    9   10    4    7   12    7   16      |NE  25   25   22   23   24   24   25   22   23   25    24
 MEDI |    9   10    8    9   10    4    6   13    8   15      |MD  25   26   21   24   25   21   26   22   22   26    22

Table 3.2056.6   GPS week: 2056   Day: 6   MJD: 58642.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1E |    8   10   15    9   16    3    7    8    7    9    3 |    22   23   19   21   23   19   21   19   21   20    19
   2E |   10    9   11   12   12    4    9   14    7   15    3 |    59   67   68   62   57   65   66   69   62   70    64
   3  |    8    7    6    5   13    3    6    7    6    8    2 |    24   27   22   23   24   21   28   21   23   25    23
  X4  |   15  ---  ---  ---  ---   29  ---   30  ---  ---   21 |    71  ---  ---  ---  ---   72  ---   60  ---  ---    70
   5  |    7    8    9    7    8    3    9   17    4   16    3 |    43   43   47   44   44   43   45   32   42   38    42
   6E |    6   12   12   14   10    3   10   11    8   10    3 |    23   28   23   23   24   22   25   23   23   24    22
   7  |    8   15    9   16   15    4    7   20    8   16    4 |    44   45   45   43   44   45   44   44   46   44    43
   8  |    8   12   13   12   12    3    7    9    6   11    3 |    21   23   22   20   26   17   21   17   18   23    20
   9  |    8    9    7   10   10    4    7    9    7   10    3 |    20   26   18   17   18   17   27   22   17   26    20
  10  |    7    7    7    8   11    3    7    9    6    8    2 |    17   23   18   16   22   17   23   15   19   20    18
  11E |    8   10   10   10    9    3    8    9    8    9    3 |    37   41   41   35   41   37   38   38   35   43    38
  12  |    8   17    7   11   13    4   10   23   10   17    4 |   160  160  159  158  159  158  159  158  160  159   159
  13  |    9   10    8    9    8    4    8   15    8   22    3 |    24   30   19   21   26   22   28   26   24   34    24
  14  |   12   10    9   15    6    5    5   26    7   18    4 |    16   20   17   28   21   16   16   27   15   21    17
  15  |    6   10    7    7    7    3    7   15    7   19    3 |    44   48   48   44   43   44   46   35   43   46    44
  16  |   10   17    6    9   15    5    8   14    6   18    4 |    27   27   27   26   26   26   24   30   26   31    25
  17  |    7   10    6    8    9    3    6   12    8   16    3 |    23   28   20   27   24   23   26   25   23   24    22
  18E |   10   16   14   13   16   10   12   11   16   11    4 |   111  109   99  111  112  104  106  103  101  105   105
  19  |   10   13    8    8    9    5    7   26   11   19    4 |    23   29   22   24   23   21   25   24   23   23    21
  20  |   10   13    8    8   13    4    6   17    7   18    3 |    21   22   17   23   25   19   20   26   22   27    20
  21E |   11    9    8   10   16    5   10   12   12   13    4 |    23   26   21   23   26   20   21   17   24   20    20
  22  |    8   20    9    5   12    3    5   15    7   13    3 |    32   35   25   29   35   30   31   32   31   31    29
  23  |    8   20    8    6   11    3    5   13    6   15    3 |    19   21   18   17   20   19   20   23   21   25    18
  24  |    6   12   12   14   11    3   10   11    8    8    3 |    48   48   49   49   48   46   48   47   47   46    47
  25  |    9   13   16   10   10    4   11   10    6   10    3 |    27   32   28   28   28   25   29   24   26   27    26
  26  |    9    9   11   11   10    3    9   10    7    8    3 |    39   36   38   35   39   35   37   32   38   39    37
  27  |    9   11   15   10    9    5    9   10    6    8    3 |    28   26   25   26   31   21   25   22   22   25    24
  28  |    8   12    6   12   12    5    8   13    8   17    3 |    39   41   38   40   42   37   40   35   40   41    39
  29  |   11   18    6    8   14    4    9   15    8   14    4 |    25   32   23   27   25   24   26   25   27   21    24
  30  |    9   21   12   24   23    4   12   11   11   10    5 |    23   25   24   25   28   22   27   23   16   27    22
  31  |    7   12    6   11   22    5    6   14    7   11    3 |    56   57   52   51   62   53   54   53   53   53    54
  32  |    9    7    5   10   10    4    6   10    7   15    3 |    24   27   21   27   23   21   28   21   17   27    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13   10   11   13    4    8   14    8   14      |T   37   39   35   36   38   36   37   36   35   38    36
 WRMS |    9   13   10   10   11    4    8   13    7   14      |NE  31   31   27   28   29   29   29   28   27   29    30
 MEDI |    8   12    8   10   11    4    8   12    7   13      |MD  25   29   24   27   26   23   28   26   24   27    24



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 4.2056   GPS week: 2056   MJD: 58636.0-58642.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3051 |U   12    12    26 |U   10    15    26 |U   14    15    36 |
emr | emr 2957 |U   18    19    38 |U   15    16    36 |U   16    16    44 |
esa | esa 2976 |    13    12    29 |U   11    14    27 |    13    14    34 |
gfz | gfz 2957 |U   12    13    26 |U    9    13    32 |U   14    14    34 |
grg | grg 2961 |U   13    15    30 |U   12    19    33 |    16    22    49 |
igr | igr 2968 |    11    11    26 |    10    14    26 |    13    14    36 |
igs | igs 2962 |    12    11    27 |    10    13    26 |    13    14    34 |
jpl | jpl 2962 |U   15    13    35 |U   11    15    32 |U   14    15    40 |
mit | mit 3030 |    18    16    36 |U   19    24    55 |U   22    22    59 |



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 5.2056.0   GPS week: 2056   Day: 0   MJD: 58636.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3066 |    10    12    30 |     9    18    25 |    13    10    29 |
emr | emr 2971 |    20    23    42 |    13    15    40 |    17    12    39 |
esa | esa 2976 |    12    14    32 |    10    15    31 |    13    14    27 |
gfz | gfz 2971 |    10    14    30 |     9    13    26 |    13    12    29 |
grg | grg 2975 |    15    21    41 |    13    20    34 |    19    30    78 |
igr | igr 2969 |    11    12    31 |     9    15    27 |    13    12    29 |
igs | igs 2974 |    11    11    32 |    10    14    28 |    13    12    30 |
jpl | jpl 2976 |    16    14    37 |    10    15    29 |    14    14    38 |
mit | mit 2976 |    18    17    44 |    14    16    38 |    24    12    41 |

Table 5.2056.1   GPS week: 2056   Day: 1   MJD: 58637.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3068 |     8    11    21 |    12    21    27 |    14    18    39 |
emr | emr 2972 |    20    23    40 |    18    21    36 |    16    19    53 |
esa | esa 2976 |     9    10    25 |    12    20    26 |    13    13    39 |
gfz | gfz 2971 |     9    12    23 |    10    21    38 |    15    15    38 |
grg | grg 2974 |     9    15    27 |    16    28    39 |    18    17    45 |
igr | igr 2943 |     8     9    22 |    11    20    28 |    12    12    40 |
igs | igs 2959 |     8     9    25 |    12    20    26 |    13    12    39 |
jpl | jpl 2976 |    11    14    32 |    13    22    33 |    14    11    45 |
mit | mit 3072 |     9    11    23 |    12    19    29 |    17    19    38 |

Table 5.2056.2   GPS week: 2056   Day: 2   MJD: 58638.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3064 |    10    14    25 |    10    15    23 |    15    15    36 |
emr | emr 2971 |    14    27    41 |    15    18    32 |    22    18    44 |
esa | esa 2976 |    11    14    31 |    10    14    23 |    13    14    33 |
gfz | gfz 2971 |     9    13    27 |     8    14    25 |    15    15    35 |
grg | grg 2976 |    10    13    30 |    15    25    35 |    19    31    68 |
igr | igr 2972 |    11    13    28 |    11    17    27 |    17    16    45 |
igs | igs 2975 |    10    13    29 |    10    14    23 |    15    15    35 |
jpl | jpl 2976 |    14    17    35 |    10    14    30 |    16    14    39 |
mit | mit 3072 |    11    10    30 |    11    11    26 |    22    29    80 |

Table 5.2056.3   GPS week: 2056   Day: 3   MJD: 58639.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3064 |    14    14    35 |    10    14    23 |    12    12    38 |
emr | emr 2972 |    18    13    39 |    15    16    30 |    14    14    42 |
esa | esa 2976 |    14    13    38 |    10    13    23 |    11    11    34 |
gfz | gfz 2972 |    13    15    34 |     8    12    26 |    12    10    33 |
grg | grg 2976 |    15    18    40 |    13    21    31 |    15    18    41 |
igr | igr 3001 |    12    11    33 |    10    13    21 |    11    10    36 |
igs | igs 2940 |    14    12    35 |    10    13    21 |    12    11    34 |
jpl | jpl 2976 |    16    10    38 |    12    14    27 |    12    16    41 |
mit | mit 3072 |    19    14    43 |    10    13    27 |    20    14    40 |

Table 5.2056.4   GPS week: 2056   Day: 4   MJD: 58640.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2967 |    16    13    24 |    10    13    28 |    14    14    39 |
emr | emr 2876 |    16    15    31 |    14    16    36 |    14    17    50 |
esa | esa 2976 |    14    13    26 |    10    12    25 |    14    13    37 |
gfz | gfz 2876 |    13    13    22 |     8    12    35 |    14    13    35 |
grg | grg 2880 |    16    12    25 |    10    15    28 |    17    16    39 |
igr | igr 2959 |    14    13    25 |    10    14    26 |    14    13    37 |
igs | igs 2948 |    13    12    25 |     9    12    26 |    14    14    37 |
jpl | jpl 2880 |    16    13    35 |    11    14    32 |    15    18    44 |
mit | mit 2976 |    34    27    56 |    29    37    95 |    31    30   141 |

Table 5.2056.5   GPS week: 2056   Day: 5   MJD: 58641.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3067 |    14    12    28 |    11    12    28 |    14    19    35 |
emr | emr 2972 |    15    16    33 |    15    13    39 |    15    12    38 |
esa | esa 2976 |    16    15    30 |    11    13    31 |    14    19    33 |
gfz | gfz 2972 |    16    13    31 |     9    12    37 |    12    20    35 |
grg | grg 2972 |    13    13    29 |    11    16    32 |    14    25    35 |
igr | igr 2967 |    14    13    28 |    10    13    29 |    13    19    33 |
igs | igs 2971 |    14    12    27 |    10    11    30 |    13    17    30 |
jpl | jpl 2976 |    16    12    34 |    12    13    38 |    15    12    34 |
mit | mit 2976 |    13    14    35 |    32    38    72 |    18    22    36 |

Table 5.2056.6   GPS week: 2056   Day: 6   MJD: 58642.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3063 |    12     8    20 |    10    10    25 |    14    16    38 |
emr | emr 2971 |    24    17    40 |    15    15    36 |    16    16    44 |
esa | esa 2976 |    13     9    23 |    11     8    29 |    13    16    34 |
gfz | gfz 2971 |    11     8    20 |     9    10    33 |    13    16    33 |
grg | grg 2975 |    12     9    23 |     9    12    30 |    13    19    38 |
igr | igr 2971 |    11     7    19 |     9     9    27 |    13    16    36 |
igs | igs 2971 |    11     7    20 |     9     9    27 |    12    16    34 |
jpl | jpl 2976 |  ----  ----  ---- |    10    11    38 |    12    17    39 |
mit | mit 3072 |    18    18    23 |    22    32   100 |    19    31    39 |


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 6.2056   GPS week: 2056   MJD: 58636.500-58642.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      14     -13      35      28     -3 |       8     15
            |      21      11      97      45      3 |       3
emr   uuuuu |      26      19      97     202      0 |      31     34
            |      25      11     116      65      9 |       2
esa   uuuuu |      -8      21      14     -12     -2 |       2     13
            |      15       8      47      10      5 |       2
gfz   uuuuu |     -15       0     -40     -62      1 |      12     18
            |      22      16     116      99      5 |       3
grg   uuuuu |     -12      -2      36    -188     -1 |       1     11
            |      18      22      39      79      2 |       2
igr   xxxxx |      22      12      42     -62      2 |      -5     13
            |      10      11      46      35      3 |       1
irf   xxxxx |      -7     -13     -30     -28      6 |      -6     15
            |      13       9      29      15      3 |       2
jpl   uuuuu |      13     -27      90      34      6 |      13     19
            |      18      16      45      48      5 |       2
mit   uuuuu |     -23      10     -48     -51      1 |      14     19
            |      21      16      50      41      2 |       3
ngs   uuuuu |     -13       1     -79       1      2 |      12     17
            |      36      22     146      42      3 |       1
sio   uuuux |      15      17    -226      26     -2 |      59     61
            |      34      22      97      74      6 |       4


Table 7.2056.0   GPS week: 2056   Day: 0   MJD: 58636.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      34      -6      33      38     -1 |      12     18
emr   uuuuu |      29      13      97     159      0 |      35     38
esa   uuuuu |      -9      22      29     -21      6 |       5     13
gfz   uuuuu |      18      16     -27      90     -4 |      17     24
grg   uuuuu |     -18     -27     -20    -236     -4 |       3     11
igr   xxxxx |      20      28     103     -26      2 |      -4     12
irf   xxxxx |      -9      -2     -86     -43      3 |      -3     16
jpl   uuuuu |      -8     -17      73     -22     -3 |      15     23
mit   uuuuu |     -13      22    -154     -89      2 |      18     25
ngs   uuuuu |     -55     -36      50      10      3 |      14     19
sio   uuuux |      47      47    -370      -2     -9 |      66     68

Table 7.2056.1   GPS week: 2056   Day: 1   MJD: 58637.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      10     -24      75     -24     -7 |      11     16
emr   uuuuu |      39      27     -81     329     16 |      33     35
esa   uuuuu |       1      18      79     -11     -2 |       4     13
gfz   uuuuu |      -6      26    -199      32     -8 |      15     19
grg   uuuuu |     -35     -10      35    -219      1 |       2      9
igr   xxxxx |      10       2      40     -80      2 |      -5     11
irf   xxxxx |     -17     -22     -36     -38      2 |      -5     14
jpl   uuuuu |      29     -52      32     -27     10 |      12     18
mit   uuuuu |     -35      31     -39     -69     -3 |      17     22
ngs   uuuuu |     -13       6     160     -12      5 |      13     18
sio   uuuux |     -41      34    -283     -30     -7 |      63     65

Table 7.2056.2   GPS week: 2056   Day: 2   MJD: 58638.500

                                                         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     -18      13      58     -5 |       8     14
emr   uuuuu |     -16      11     106     172     -3 |      31     33
esa   uuuuu |       9      28      11     -17     -2 |       2     12
gfz   uuuuu |     -39      -2    -184     -15      7 |      11     16
grg   uuuuu |       7       2      31    -172     -3 |       0      9
igr   xxxxx |      40       8       9     -45     -2 |      -6     12
irf   xxxxx |     -18     -22     -29     -37      8 |      -7     14
jpl   uuuuu |      -6     -21      78      10      6 |      11     17
mit   uuuuu |     -55       5      -2     -55      4 |      13     19
ngs   uuuuu |      39      11     -12      31      4 |      11     16
sio   uuuux |       1      -3    -125     -92     -7 |      60     62

Table 7.2056.3   GPS week: 2056   Day: 3   MJD: 58639.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       5      -7     184      55     -2 |       6     14
emr   uuuuu |      -2      40     -23     142    -14 |      30     33
esa   uuuuu |       8       5     -32     -13     -8 |       0     13
gfz   uuuuu |      -1     -11     -60    -125      5 |      10     16
grg   uuuuu |     -17       7      60    -181     -1 |      -1     10
igr   xxxxx |      26      -5     -26    -116      4 |      -8     13
irf   xxxxx |     -21     -24     -30     -18      8 |      -8     15
jpl   uuuuu |       8     -15     146      39     10 |      10     16
mit   uuuuu |     -20     -18     -54      25      2 |      12     17
ngs   uuuuu |       8      14    -178      41      3 |      10     15
sio   uuuux |      -3     -13    -208      27     -1 |      57     59

Table 7.2056.4   GPS week: 2056   Day: 4   MJD: 58640.500

                                                         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 |      40       1     -52      96     -3 |       6     14
emr   uuuuu |      47      18     255     167     -5 |      30     32
esa   uuuuu |     -11      26     -41      -6     -2 |       0     12
gfz   uuuuu |     -41      -3      26    -100      0 |      10     16
grg   uuuuu |     -29     -33       2    -298      2 |      -1     11
igr   xxxxx |      13      15      19     -64      7 |      -7     13
irf   xxxxx |      -1      -5     -29     -40      7 |      -7     15
jpl   uuuuu |       6     -49     139      86      4 |      12     19
mit   uuuuu |     -33       4     -30     -89      1 |      12     17
ngs   uuuuu |       8      33    -200      30      1 |      10     16
sio   uuuux |      15       2    -145      59      7 |      55     57

Table 7.2056.5   GPS week: 2056   Day: 5   MJD: 58641.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -14     -30     101      -9     -2 |       7     15
emr   uuuuu |      35      13     176     195      1 |      30     33
esa   uuuuu |     -27      30     -16     -22     -7 |       2     13
gfz   uuuuu |     -29     -21      84    -130      1 |      11     17
grg   uuuuu |      14      18     101    -168      2 |       1     12
igr   xxxxx |      22      20      59     -87     -1 |      -5     14
irf   xxxxx |      10      -9       4     -13      5 |      -5     15
jpl   uuuuu |      31     -14      47      77     12 |      13     20
mit   uuuuu |     -15      14      -9     -17      2 |      13     19
ngs   uuuuu |     -13      -7    -226      -7      0 |      12     18
sio   uuuux |      23      26    -314      99     -2 |      55     57

Table 7.2056.6   GPS week: 2056   Day: 6   MJD: 58642.500

                                                         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 |      -4     -10    -108     -16      2 |       6     15
emr   uuuuu |      49      13     151     247      6 |      30     33
esa   uuuuu |     -26      20      69       8     -2 |       1     13
gfz   uuuuu |      -7      -8      82    -184      4 |      11     17
grg   uuuuu |      -6      28      46     -41     -3 |       1     12
igr   xxxxx |      25      18      92     -17      5 |      -5     14
irf   xxxxx |      11      -8       0      -6      5 |      -4     14
jpl   uuuuu |      33     -22     120      78      6 |      15     21
mit   uuuuu |      11      15     -48     -65      3 |      13     19
ngs   uuuuu |     -61     -16    -145     -83     -4 |      13     18
sio   uuuux |      63      23    -136     118      6 |      55     57


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