[IGSREPORT-26876] Wk 2074 IGS Final Orbits

acc acc at igs.org
Sun Oct 27 17:08:41 PDT 2019


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2074   (Oct 06, 2019 - Oct 12, 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:

igs2074[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs2074[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs2074[0-6].cls  IGS GPS clock combination summary report.
igs20747.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs20747.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   | LHAZ LHAZ
                0  |  EMR   | AREQ HOB2 PTBB AREQ HOB2 NLIB PTBB
                0  |  ESA   | ABMF AREG ASCG CEDU COCO DARW DAV1 DGAR FAA1 FALK
                0  |  ESA   | GRAZ HARB HERS HOB2 KIRU MAJU MAL2 MAR6 MAS1 MAW1
                0  |  ESA   | MGUE MOBS NKLG NNOR ONSA PTBB TOW2 USN7 VILL ABMF
                0  |  ESA   | AREG ASCG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ
                0  |  ESA   | HARB HERS HOB2 KIRU MAJU MAL2 MAR6 MAS1 MAW1 MGUE
                0  |  ESA   | MOBS NKLG NNOR ONSA PTBB TOW2 USN7 VILL
                0  |  GFZ   | DAV1 GODE LHAZ REUN DAV1 GODE LHAZ REUN
                0  |  GRG   | 11
                0  |  JPL   | BAKE BAKE
                1  |  COD   | 18 TIXI MKEA TIXI
                1  |  EMR   | 18 MATE PTBB MATE PTBB
                1  |  ESA   | AREG CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB
                1  |  ESA   | HERS HOB2 KIRU KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE
                1  |  ESA   | MOBS NKLG NNOR NRIL ONSA PTBB TOW2 USN7 VILL AREG
                1  |  ESA   | CEDU COCO DARW DAV1 DGAR FAA1 FALK GRAZ HARB HERS
                1  |  ESA   | HOB2 KIRU KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS
                1  |  ESA   | NKLG NNOR NRIL ONSA PTBB TOW2 USN7 VILL
                1  |  GFZ   | 18 GODE LHAZ MATE REUN GODE LHAZ MATE NYA1 REUN
                1  |  JPL   | NYA1 PETS NYA1 PETS
                2  |  COD   | 18 18 ASCG CPVG REUN SEYG TIXI ASCG CPVG REUN TIXI
                2  |  ESA   | CEDU CHUR COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS
                2  |  ESA   | HOB2 KIRU KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS
                2  |  ESA   | NKLG NNOR ONSA PTBB SEYG TONG TOW2 VILL CEDU CHUR
                2  |  ESA   | COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2 KIRU
                2  |  ESA   | KOUG LHAZ MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS NKLG
                2  |  ESA   | NNOR ONSA PTBB TONG TOW2 VILL
                2  |  GFZ   | 18 18 DGAR GODE LHAZ REUN ABMF DGAR GODE GUAT LHAZ
                2  |  GFZ   | REUN
                2  |  GRG   | 18 18 HARB KIT3 TONG HARB KIT3 TONG
                2  |  MIT   | 18 BARH BJNM
                3  |  COD   | 18 18 29 BARH TIXI ULAB BARH TIXI ULAB
                3  |  EMR   | 18 PTBB PTBB
                3  |  ESA   | 18 18 CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS
                3  |  ESA   | HOB2 KIRU KOUG LHAZ MAJU MAL2 MAR6 MAS1 MAW1 MGUE
                3  |  ESA   | MOBS NKLG NNOR ONSA PTBB TONG TOW2 VILL CEDU COCO
                3  |  ESA   | DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2 KIRU KOUG
                3  |  ESA   | LHAZ MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS NKLG NNOR
                3  |  ESA   | ONSA PTBB TONG TOW2 VILL
                3  |  GFZ   | BJNM GODE REUN GODE NYA1 REUN
                3  |  GRG   | 22 22 KIT3 LPGS KIT3 LPGS
                3  |  JPL   | POLV
                3  |  MIT   | BJNM
                4  |  COD   | TIXI LHAZ TIXI
                4  |  EMR   | 1 1 PTBB BJNM PTBB
                4  |  ESA   | 18 18 ASCG CEDU CHUR COCO DARW DAV1 DGAR FAA1 FALK
                4  |  ESA   | GRAZ HARB HERS HOB2 KIRU KOUG LAUT MAJU MAL2 MAR6
                4  |  ESA   | MAS1 MAW1 MGUE MOBS NKLG NNOR ONSA PTBB TONG TOW2
                4  |  ESA   | USN7 VILL ASCG BAKE CEDU CHUR COCO DARW DAV1 DGAR
                4  |  ESA   | FAA1 FALK GRAZ HARB HERS HOB2 KIRU KOUG LAUT MAJU
                4  |  ESA   | MAL2 MAR6 MAS1 MAW1 MGUE MOBS NKLG NNOR ONSA PTBB
                4  |  ESA   | TONG TOW2 USN7 VILL
                4  |  GFZ   | BAKE CCJ2 GODE REUN BAKE CCJ2 CHUR GODE REUN
                4  |  GRG   | 18 18 CCJ2 HOB2 LHAZ CCJ2 HOB2 LHAZ
                4  |  MIT   | BJNM BJNM HOB2 HRAO
                5  |  COD   | TIXI ASCG TIXI
                5  |  EMR   | PTBB YELL
                5  |  ESA   | 18 18 ABMF ANKR CEDU COCO DARW DAV1 DGAR FAA1 GRAZ
                5  |  ESA   | HARB HERS HOB2 KIRU KOUG LHAZ MAJU MAL2 MAR6 MAS1
                5  |  ESA   | MAW1 MGUE MOBS NKLG NNOR ONSA PTBB TOW2 VILL ABMF
                5  |  ESA   | CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2
                5  |  ESA   | KIRU KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS NKLG
                5  |  ESA   | NNOR ONSA PTBB TOW2 VILL
                5  |  GFZ   | GODE MAL2 REUN GODE MAL2 PIMO REUN ZECK
                5  |  GRG   | LHAZ LHAZ
                5  |  JPL   | POLV POLV
                5  |  MIT   | MAL2
                6  |  COD   | 18 ASCG TIXI ZECK ASCG TIXI ZECK
                6  |  EMR   | PTBB NLIB PTBB
                6  |  ESA   | 18 18 ABMF CEDU COCO DARW DAV1 DGAR FAA1 GRAZ HARB
                6  |  ESA   | HERS HOB2 KIRU KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE
                6  |  ESA   | MOBS NKLG NNOR ONSA PTBB TONG TOW2 VILL ABMF CEDU
                6  |  ESA   | COCO DARW DAV1 DGAR FAA1 GRAZ HARB HERS HOB2 KIRU
                6  |  ESA   | KOUG MAJU MAL2 MAR6 MAS1 MAW1 MGUE MOBS NKLG NNOR
                6  |  ESA   | ONSA PTBB TONG TOW2 VILL
                6  |  GFZ   | GODE GODE
                6  |  GRG   | CCJ2 CCJ2 HYDE

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

 6. 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 G17 |  2 |    |    |    |    |    |    |

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

 8. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .5     .1    2.2      16     29     -4    -.72
       EMR  |   0 |    -.4    5.1   -2.0      -8     75    -74    -.68
       ESA  |   0 |     .7    -.5     .9      11     20     34    -.75
       GFZ  |   0 |     .4    1.2    1.7      46     26     24    -.61
       GRG  |   0 |    2.9    -.7   13.6      87      1    123    -.28
       JPL  |   0 |    7.6   -3.7    6.5       0      0      1    -.77
       MIT  |   0 |    1.5   -2.2    9.5      21     72    -21    -.59
       NGS  |   0 |   -3.6     .3    6.8     -10     97    -59    -.51
       SIO  |   0 |   -3.9   -1.7   -7.2      -8      6    -10    -.31

       COD  |   1 |     .1    -.6    2.2      18     39     27    -.79
       EMR  |   1 |     .5    7.1    -.0     -19     50    -13    -.44
       ESA  |   1 |    1.0   -1.2     .9       9     29     32    -.77
       GFZ  |   1 |     .6     .7    1.2      47     24     38    -.72
       GRG  |   1 |    -.1    2.3   16.0      82     43     69    -.29
       JPL  |   1 |    5.5    1.0     .8      -3     -4    -18    -.88
       MIT  |   1 |    1.5   -2.1   10.9      17     78    -12    -.51
       NGS  |   1 |   -4.5   -1.6    9.4     -31    108    -52    -.57
       SIO  |   1 |   -2.9   -5.7   -3.4      12     31     -5    -.43

       COD  |   2 |    1.0    -.3    1.6       9     25      6    -.59
       EMR  |   2 |   -1.2    9.2    5.3      -1     44    -59    -.27
       ESA  |   2 |    1.1    -.5     .8      20      9     53    -.63
       GFZ  |   2 |     .6     .8    1.1      42     15     39    -.56
       GRG  |   2 |    1.5    3.9   20.1      90     30     89    -.36
       JPL  |   2 |    9.7    1.9    6.2       5     -1    -16    -.61
       MIT  |   2 |     .4    1.2    9.1      23     63      5    -.29
       NGS  |   2 |   -1.6    5.0   10.2      19     77    -54    -.53
       SIO  |   2 |   -3.6     .9   -4.3      17      4     -8    -.28

       COD  |   3 |    1.0     .5    1.2      15     16    -17    -.57
       EMR  |   3 |    4.7    8.2   -1.8      14     45    -40    -.26
       ESA  |   3 |    2.1   -1.0    1.2      11     28     57    -.56
       GFZ  |   3 |     .8     .7    1.5      43     17     31    -.53
       GRG  |   3 |    1.2    1.8   10.0      99     33     84    -.35
       JPL  |   3 |    9.1     .7    5.5      15      4    -10    -.60
       MIT  |   3 |    5.0     .7   10.3      23     70    -11    -.41
       NGS  |   3 |   -1.1    1.6   11.1      27    107    -83    -.38
       SIO  |   3 |     .5   -1.2   -6.4      14    -12      4    -.39

       COD  |   4 |     .4    -.2    1.0       8     18      1    -.56
       EMR  |   4 |    4.6    1.0    6.9       6     77    -48    -.10
       ESA  |   4 |    1.4    -.7     .4      20     33     50    -.51
       GFZ  |   4 |     .3    1.1     .7      49     22     15    -.30
       GRG  |   4 |    4.3    2.7   17.2      89     40     76    -.15
       JPL  |   4 |    4.2    -.9    6.5      -4     -4     -1    -.71
       MIT  |   4 |    3.8    1.5   12.3      13     74     -8    -.29
       NGS  |   4 |    -.6    -.2    2.8       1     63    -48    -.29
       SIO  |   4 |     .1    2.6   -5.9      24      9    -25    -.13

       COD  |   5 |    -.0    -.3    1.8       2     39     18    -.55
       EMR  |   5 |    5.4    2.3    2.9      11     61    -52    -.16
       ESA  |   5 |    1.1    -.5    1.3      23     31     56    -.66
       GFZ  |   5 |     .7     .9    1.8      39     24     22    -.52
       GRG  |   5 |    6.7    1.2    6.4      98     37     93    -.28
       JPL  |   5 |    6.0   -3.3   11.0       4     -6      3    -.47
       MIT  |   5 |    5.1   -2.3   12.7       8     68     -7    -.47
       NGS  |   5 |   -1.7    2.5    7.7       9     82    -44    -.38
       SIO  |   5 |    1.5    -.4   -3.0      -4     20      3    -.34

       COD  |   6 |    1.1    -.4    2.0       3     14     10    -.78
       EMR  |   6 |    6.0    -.8    3.0      -2     70    -71    -.45
       ESA  |   6 |    1.5   -1.0     .9       4     29     69    -.78
       GFZ  |   6 |     .7     .8    1.4      35     36     30    -.68
       GRG  |   6 |    3.1    5.9    3.8      88     49     68    -.32
       JPL  |   6 |   10.3    -.9    7.9     -13     24     14    -.63
       MIT  |   6 |    3.2    3.0    9.4      -4     71      8    -.48
       NGS  |   6 |   -7.3    3.7    6.0       3    109    -39    -.48
       SIO  |   6 |   -3.2     .4    6.5       7     11    -14    -.32


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

10. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        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 1.2074.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2074.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 2.2074.[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 3.2074.[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 5.2074.0-6). 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 2074 summary.                       (Oct 06, 2019 - Oct 12, 2019)

Table 1.2074.a   GPS week: 2074   MJD: 58762.000-58768.000

         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  252|   -1     0     1    14     8     7  -.02    9    9 |    -677      90      6     89
        |    0     0     1    10    19    19   .03           |     145     259
emr   80|    0     0     0    -9    -6    20   .15   12   12 |  143817     101     15    104
        |    1     1     1     6    10    16   .05           |     752     907
esa  150|    0     1     0   -18    -5    -5  -.10    9    9 |    2633    -125      7    118
        |    0     0     0     5    18    11   .02           |    2318     512
gfz  182|    0     0    -3     7    -4   -12   .02   11   10 |      -9      32     11    118
        |    0     0     1    20    11     8   .02           |     357     528
grg   98|    2     0     1     9    -3    65  -.19   12   10 |      64      67     10    138
        |    0     0     5    11    11    15   .03           |     221     207
igr  n/a|    0     0    -1   -18   -43   -10  -.02    4    4 |    7079     240     11     62
        |    0     0     0    11    11    16   .01           |    1000     939
jpl   80|    0     0     0    -4     8   -11   .17    7    7 |  214133     -18      8     81
        |    0     0     0    11    14    16   .02           |     702     865
mit  348|    0     0    -2    -7     0     6  -.04   14   13 |    -210    -162     71   1741
        |    0     1     1    50    35     9   .02           |     554     113
ngs  194|    0     0     2     3    -2   -26  -.09    9    7 |    -622     -29    984   2221
        |    0     0     2    24    16    21   .01           |     111     257
sio  312|    0    -1    -3    10    -4   -13   .08   17   17 |     ---     ---    ---    ---
        |    1     1     1    32    40    46   .04           |     ---     ---


Table 1.2074.b   GPS week : 2074   MJD: 58762.000-58768.000   

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

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2074.0   GPS week: 2074   Day: 0   MJD: 58762.000                            

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|    0     0     2     9     8   -30  -.03    9    8 |    -507    -192      7     83
emr   80|    0     1    -1   -15   -22    50   .07   13   13 |  142930     473     17     99
esa  150|    0     2     0   -14   -20   -17  -.08   10   10 |     -15    -964      9    108
gfz  184|    0     0    -4     1    -8    -7   .02   12   10 |     337    -540     12    120
grg   98|    2     0     3    13   -11    55  -.17   12   10 |     190    -149     12    154
igr  n/a|    0     0    -1   -11   -39     1  -.01    4    4 |    5366     854     11     72
jpl   80|    0    -1     0   -18    -3    13   .18    7    7 |  213568     252      9     75
mit  349|    0    -2    -3    59    25     4   .01   15   15 |     626    -370     78   1608
ngs  193|    0     0     1   -24    20   -36  -.09    9    7 |    -499    -204    756   1986
sio  315|    3    -2    -2    41    19   -12   .16   18   18 |     ---     ---    ---    ---

Table 2.2074.1   GPS week: 2074   Day: 1   MJD: 58763.000                            

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|   -1    -1     1    35    17     0   .00   10   10 |    -667     183      7     92
emr   80|   -1     0    -1     0     5    25   .12   11   11 |  144075      95     15     96
esa  150|    0     0     0   -10     2   -15  -.10    9    9 |    4485     232      8    113
gfz  184|    0     0    -5    35     5    -2   .05   12   10 |     410    -302     12    102
grg   99|    2    -1     5     6    12    55  -.23   12   11 |     259     -66     10    150
igr  n/a|    0     0    -1   -11   -41     9  -.02    4    4 |    6884     630     11     60
jpl   80|    0     0     0    16    -8   -34   .16    6    6 |  214521     103      7     82
mit  349|    0    -1    -1   -75   -31     8  -.03   14   13 |     338    -122     89   1840
ngs  194|    0     0     3   -11    -5     9  -.10    8    6 |    -655     161   1325   2747
sio  315|    2    -1    -5   -51     7    16   .04   18   17 |     ---     ---    ---    ---

Table 2.2074.2   GPS week: 2074   Day: 2   MJD: 58764.000                            

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|   -1     0     0     1    20     7   .01    8    8 |    -615     -18      6     89
emr   80|    0     1    -1    -5   -11    10   .13   12   12 |  143830     221     16    118
esa  150|    0     1     0   -26   -26    -6  -.09   10    9 |    4190    -489      8    150
gfz  182|    0    -1    -5    21     2   -19   .04   12   12 |    -111     413     12    133
grg  100|    3     0     7    26    10    72  -.24   13   11 |     138      56     10    160
igr  n/a|    0     0    -1   -22   -28   -15  -.02    4    4 |    7164     574     11     64
jpl   80|    0     0     0    -7    -3   -20   .17    7    7 |  214277     292     10     88
mit  348|    0     0    -3    23    32    21  -.04   14   12 |      49     -27     74   1680
ngs  195|    0     1     4   -19   -25   -16  -.11    8    7 |    -516    -250    877   2048
sio  314|    2    -4    -6    22    33     7   .09   18   17 |     ---     ---    ---    ---

Table 2.2074.3   GPS week: 2074   Day: 3   MJD: 58765.000                            

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|   -1     0     3    14   -10    26  -.04    8    8 |    -736     385      5     75
emr   80|    1     0     0    -7   -11    30   .16   12   12 |  143322     959     17    125
esa  150|   -1     1     0   -19    13     1  -.09    9    9 |   -1288    -458      9    125
gfz  181|    0     0    -4   -19    12    -6   .04   11    9 |    -538     315     11    102
grg   97|    1     0     0    16    -1    77  -.19   12   10 |    -348     461     10    107
igr  n/a|    0     0    -1   -27   -34    -1  -.01    4    4 |    7088    1031     10     62
jpl   80|    1    -1     0     1    25   -15   .18    7    7 |  213860     813      8     84
mit  349|    0     0    -2   -21   -43     7  -.04   14   13 |    -354    -110     68   1763
ngs  193|   -1     0     4    23    13   -61  -.08   10    7 |    -732     366   1141   2305
sio  310|    0    -1    -4    -4   -56   -18   .06   18   16 |     ---     ---    ---    ---

Table 2.2074.4   GPS week: 2074   Day: 4   MJD: 58766.000                            

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|   -2     0     0    13   -26    11  -.07   10   10 |    -604    -170      9    101
emr   80|    0     0     0   -11     0    12   .21   12   12 |  144685     320     15     84
esa  150|   -1     1     1   -15   -27     6  -.08    9    9 |    4240     114      8    121
gfz  184|    1     0    -2    16    -8   -24   .00    9    9 |    -116     662     11    125
grg   97|    1    -1     3    -6   -13    78  -.18   12   11 |     234     114     11    136
igr  n/a|    0     0    -1   -19   -61    -6  -.04    4    4 |    8292      23     12     71
jpl   80|    1     0     1   -14    11   -22   .17    8    8 |  214955     -49      7     69
mit  349|    0     0    -1   -14    47    -7  -.06   14   12 |    -672    -173     57   1837
ngs  195|   -1     0    -1    21     2   -31  -.08   10    8 |    -603    -184    878   2331
sio  312|    0    -1    -3    26    34     4   .11   18   12 |     ---     ---    ---    ---

Table 2.2074.5   GPS week: 2074   Day: 5   MJD: 58767.000                            

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|    0     0     3    15    29    14  -.00    8    8 |    -967     461      6     94
emr   80|    0     1     0   -17     5     0   .17   12   12 |  144811   -1859     13    111
esa  150|   -1     0     0   -25    14   -18  -.12    9    8 |    3074     403      7    118
gfz  184|    0    -1    -3   -15   -17   -20   .00   10    9 |     267    -682     11    142
grg   99|    1    -1    -5    12    -6    82  -.17   11   11 |     105     -99     11    116
igr  n/a|    0     0     0   -35   -39   -32  -.02    4    4 |    8210   -1753     11     55
jpl   80|    0     0     1    -3     8    -3   .18    7    7 |  214768   -1884      7     87
mit  349|    0     0     0    34   -21    -1  -.06   15   12 |    -689     -91     52   1672
ngs  198|    0     0     1    -4   -14   -21  -.10    9    8 |    -797     176    900   2089
sio  309|   -1    -2     0    40   -64    23   .03   18   18 |     ---     ---    ---    ---

Table 2.2074.6   GPS week: 2074   Day: 6   MJD: 58768.000                            

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|   -2     0     1    14    19    26   .01    9    8 |    -645     -19      7     91
emr   80|    2    -1     0    -9   -11    12   .22   11   11 |  143070     498     13    101
esa  150|   -1     1     1   -19     2     9  -.11    9    9 |    3745     283      6     95
gfz  177|    1    -1    -1    13   -15    -6  -.00    9   10 |    -318     360     11    106
grg   96|    1     0    -4    -3   -14    39  -.18    9    9 |    -124     155     10    145
igr  n/a|    0     0     0     0   -56   -30  -.02    4    4 |    6551     322     11     52
jpl   80|    0    -1     0    -7    27     2   .14    8    8 |  212987     347      9     84
mit  348|   -1     0     0   -61   -15    11  -.04   14   13 |    -770    -242     80   1788
ngs  192|    0     0     3    37    -9   -28  -.08    8    7 |    -557    -272   1011   2044
sio  312|    0     0    -2    -1    -5  -113   .08   14   18 |     ---     ---    ---    ---

       
       
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 3.2074.0   GPS week: 2074   Day: 0   MJD: 58762.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6   11    7    9    8    2    5   10    5   10    2 |    23   27   25   22   23   22   27   21   20   28    23
   2  |    9   10    5   11    8    4    8   19    8   26    4 |    20   22   17   20   18   18   22   30   17   29    18
   3  |    8    8    7    8    6    3    6   10    6   13    2 |    23   29   26   25   27   24   29   21   25   33    25
  X4E |    9  ---   11  ---  ---   18  ---  ---  ---  ---   10 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
   5  |    8   11    8   11    6    4    9   15   11   23    3 |    47   43   47   47   44   44   47   36   43   38    43
   6  |    5    8    9   10    6    3    8   10    7   15    3 |    25   31   27   25   24   26   30   28   26   35    26
   7  |    7    9    7    9    9    4    6   25    8   21    4 |    32   31   29   34   27   29   33   26   30   27    30
   8E |   10   13   21   39   14    3    7    9   11   17    6 |    30   30   31   49   33   29   32   26   29   27    29
   9E |   10   11   18   16   12    4    7   12    4   17    4 |    33   35   34   38   29   34   37   37   34   33    33
  10  |    8   16    6    6    7    4    6   11    7   13    3 |    20   23   20   20   20   18   24   18   19   27    19
  11  |    9   17   14   10   26    4    7    9    8   17    4 |    26   32   18   27   26   23   27   27   27   24    23
  12  |   11   16    6   10   10    5    8   20   10   24    4 |    28   29   26   28   25   27   30   27   24   31    26
  13E |   19   15    8   13   17    4   12    9   13   13    4 |    72   74   68   71   64   69   72   69   68   71    68
  14E |   11   10    6    9   14    5    7   11    9   15    3 |    46   49   50   51   48   49   48   51   52   54    49
  15E |    7   16    9    9   15    4   10   19    8   23    4 |    71   73   67   68   72   68   71   67   71   67    69
  16  |    7   19    7   10    8    3    6   16   11   20    4 |    17   16   16   18   15   16   18   17   17   19    15
  17E |    8    9    5   12    9    4    8   13    8   19    3 |   160  155  157  157  157  157  157  159  156  154   157
  18  |    7   10   11    9    8    5    5   10    9   13    3 |    21   23   24   24   19   19   21   22   20   21    19
  19E |   16    8    9   10    8    4    8   18   13   22    4 |    28   21   26   27   23   23   24   24   27   22    23
  20  |    9   14    4    8    8    4    8   19    7   22    3 |    31   31   32   30   31   31   35   40   31   42    32
  21  |   13   12    6   12    9    5    8   21    8   27    4 |    18   24   16   19   16   17   21   28   18   25    16
  22  |    7   11    7    7   10    3    5   16    6   20    3 |    32   37   32   34   35   34   36   34   33   35    33
  23E |    6   23    7    9   13    5    7   14   10   16    4 |    33   35   36   36   32   35   34   39   34   38    34
  24  |    7    9   10    9    9    4    7   10    8   20    3 |    21   24   20   20   17   20   23   19   18   22    19
  25  |   11   13    8   10    8    6    7   11    5   14    3 |    20   28   22   18   16   19   23   21   19   29    19
  26  |    9   13   11   10    7    2    5    8    7   16    3 |    19   24   23   19   19   19   24   18   20   28    19
  27E |   10   11   17   15   18    4    7   12   12   12    4 |    39   36   39   40   41   39   39   36   38   40    37
  28  |    8   10   12    8    8    5    7   17    7   18    3 |    15   22   18   19   16   16   23   18   16   21    17
  29E |    6   15   10    8   26    4    9   23   15   21    5 |   127  127  127  128  132  126  127  127  123  128   126
  30  |    7    9    9    9    7    3    7   12    7   13    3 |    23   26   26   26   20   24   28   25   23   29    24
  31  |    7   13    9    9    8    3    7   14    7   19    3 |    28   31   29   33   27   29   32   26   25   24    27
  32E |   11   12   13    7   16    4   10   14   12   13    4 |    21   22   19   21   18   21   23   25   24   24    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   13   10   12   12    4    7   15    9   18      |T   37   39   37   38   35   36   39   37   36   39    36
 WRMS |    8   13   10   10   10    4    7   15    7   18      |NE  24   27   24   25   23   23   27   25   23   28    23
 MEDI |    8   11    8    9    9    4    7   13    8   17      |MD  28   30   26   27   26   26   30   27   26   29    26

Table 3.2074.1   GPS week: 2074   Day: 1   MJD: 58763.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    9    9    6    6    7    3    4    9    5   11    2 |    30   33   31   29   30   30   31   32   31   30    30
   2  |   11    8    5    9    9    4    6   21    8   26    4 |    20   23   22   22   20   23   24   34   25   32    22
   3  |    5    8    5    8    7    3    6    7    7   12    2 |    28   33   27   25   30   29   31   29   29   37    29
  X4E |    2  ---  ---  ---  ---  262  ---  ---  ---  ---    0 |   ---  ---  ---  ---  ---  ---  ---  ---  ---  ---     0
   5  |   10   11    6   10    9    4    6   16    6   23    3 |    36   34   31   36   33   33   35   31   35   34    33
   6  |    6    8    6    9    8    3    7    9    5   12    2 |    29   33   31   30   32   32   34   34   33   40    32
   7  |    7    9    6   12    9    4    7   20    7   17    3 |    24   26   22   26   19   23   25   16   23   23    22
   8E |   11   11   22   31   17    6    6    8    6   16    5 |    20   17   20   34   23   17   19   19   20   21    17
   9E |    8   11   17   20   15    3    6    9    6   17    4 |    31   33   29   38   31   32   32   33   36   37    31
  10  |    8   10    5    7    6    4    5   11    7   14    2 |    27   24   24   26   24   23   27   25   26   32    24
  11  |   10   11   14   12   15    3    6    7    8   17    3 |    27   33   26   34   29   29   29   30   31   27    28
  12  |   11   16    6   10    8    4    6   20    7   20    4 |    22   23   20   23   20   22   25   25   22   25    21
  13E |   14    7    4   18   23    6    6    8   10   12    4 |    59   62   62   64   63   62   63   64   64   65    62
  14E |   12   11    5   10   14    4    7   11    7   13    3 |    57   55   59   58   58   57   55   60   59   61    57
  15E |    7   14    9    8   16    5    9   19    8   21    4 |    63   66   59   62   64   61   63   60   62   57    61
  16  |    7   17    4    8    6    3    7   19    6   23    3 |    19   21   18   20   20   19   20   19   19   25    18
  17E |   17    9    5    9   15    4    8   11    5   15    3 |   121  118  118  118  118  117  119  118  118  114   118
  18  |    8    8   10   11   10    2    4    8    6   15    3 |    24   23   25   24   20   23   22   23   24   22    21
  19E |   15   11    8    7    9    3    5   17    9   18    3 |    19   17   18   19   18   19   17   19   23   21    17
  20  |    7    7    6    8    6    4    6   19    6   21    3 |    33   30   35   35   34   34   35   42   36   43    34
  21  |   17    9    6   12   11    6    6   20    9   23    4 |    24   26   24   22   25   22   26   34   23   30    22
  22  |    7    8    5    7   10    3    5   16    6   20    3 |    33   37   32   34   36   35   34   33   36   35    33
  23E |    7   24    7    6   13    4    7   18   10   18    4 |    36   36   39   39   38   39   39   42   38   43    38
  24  |   11    8   10    7    9    4    7   11    7   17    3 |    26   27   23   28   23   25   28   26   25   29    25
  25  |   10    7    9    7   10    5    6   13   11   15    3 |    25   26   32   27   22   26   28   28   23   34    26
  26  |   10    8    6   11    7    3    7    9    7   16    3 |    19   24   24   20   22   21   26   24   21   34    22
  27E |    7   10   19   13   17    4    5   12    8   17    4 |    23   21   21   20   24   20   20   24   24   25    19
  28  |    9    9    7   12   10    4    6   16    7   18    3 |    19   24   21   26   21   22   24   23   23   27    21
  29E |   13   14   10    9   15    4    5   22   21   21    5 |    77   79   74   75   72   73   73   79   70   78    73
  30  |    8    8   10   10    9    3    6    8    5   11    3 |    28   27   30   27   29   29   30   27   29   32    28
  31  |    8   10    7    9    8    3    7   15    8   20    3 |    27   28   25   31   26   28   32   29   29   29    27
  32E |   14   11   13    8   16    5    8   12    8   13    4 |    28   27   24   26   25   27   29   30   27   32    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   11    9   12   12    4    6   14    8   18      |T   34   35   33   35   33   33   35   35   34   37    33
 WRMS |   10   11    9   10   10    4    6   13    6   17      |NE  26   27   26   27   25   26   28   28   27   31    25
 MEDI |    9    9    6    9   10    4    6   12    7   17      |MD  27   27   26   28   26   28   29   30   29   32    27

Table 3.2074.2   GPS week: 2074   Day: 2   MJD: 58764.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    8    7    8    8    2    5    6    6   11    2 |    19   24   20   19   20   19   23   17   16   21    19
   2  |   10    8    7    8    9    3    5   20    9   27    4 |    20   21   18   18   17   19   21   30   21   29    19
   3  |    7    7    5    6    8    2    5    7    6   13    2 |    20   25   20   20   22   20   24   18   21   29    21
   5  |    8    9    8    9    9    3    6   17    6   23    3 |    40   36   38   40   38   37   40   33   37   38    37
   6  |    6   10    8    7    7    3    6    8    6   14    2 |    20   26   21   18   19   19   23   20   23   30    21
   7  |    7    9    7    9   11    4    6   19    8   17    3 |    25   29   23   28   23   23   27   19   23   23    23
   8E |    9   10   19   24   15    4    5    7    7   16    4 |    22   20   23   30   24   21   22   19   22   24    20
   9E |    8   17   18   21   16    4    6    8    9   19    4 |    27   30   22   38   24   25   26   24   29   32    25
  10  |    9    9    5    8    7    5    5    9    9   16    3 |    20   22   20   17   17   18   23   18   21   28    19
  11  |    9   10   14    8   15    3    6    7   11   17    3 |    24   24   17   26   20   21   25   23   24   19    20
  12  |   10   14    7   10    9    4    6   21   11   22    4 |    30   28   26   28   24   26   31   28   22   30    26
  13E |   10    9    5   11   17    5    6   10    8   14    3 |    47   48   47   47   46   45   48   49   51   48    47
  14E |    8   11    6   11   13    5    6   10    7   14    3 |    26   30   27   25   27   26   26   31   26   27    26
  15E |   10   15    8   11   13    7   15   18    9   22    4 |    73   75   72   74   74   74   81   74   77   78    75
  16  |    5   19    6   11   10    4    6   16    8   23    4 |    19   17   17   20   17   17   18   17   17   24    16
  17E |    9   11   10   26   31    7   11   15   11   14    5 |   123  122  124  129  126  125  120  129  123  126   123
  18  |    7    9   11    9   12    3    6    9    8   13    3 |    15   17   18   18   17   16   16   16   15   17    14
  19E |    8   11    8    9   12    3    5   18   10   16    3 |    15   17   16   19   14   16   16   19   19   21    15
  20  |   11    9    6   11    6    6    5   18    8   22    3 |    28   26   25   25   23   26   26   33   26   35    25
  21  |    8   11    9   12   12    4    5   21    7   24    4 |    17   23   18   17   16   17   21   26   18   24    17
  22  |    4    8    7    6   11    2    4   14    5   18    2 |    24   28   24   26   22   24   27   25   27   25    24
  23E |    7   24    8    8   10    5    7   16    8   19    4 |    28   30   32   33   30   29   30   32   31   37    29
  24  |    8   10   11    9   11    4    7   12    6   19    3 |    19   26   22   24   19   20   25   18   21   27    20
  25  |    9   10    7    9    8    4    6   15    6   13    3 |    16   23   19   17   14   16   22   20   16   23    17
  26  |    8    7    7   11    7    2    5    8    5   19    3 |    22   25   22   21   21   22   26   21   23   35    22
  27E |    8    8   17   20   18    5    7   10    7   17    4 |    29   28   31   31   30   29   28   29   28   34    28
  28  |    7   10    7   11   11    4    4   13    6   19    3 |    17   22   18   21   17   17   21   14   16   18    17
  29E |   12   17    7   11   17    4    8   18   16   21    4 |    81   74   77   80   71   76   76   80   69   82    75
  30  |    6    9    9   10   11    4   10    7    6   10    3 |    19   21   20   19   18   19   24   18   19   23    19
  31  |    7   13    8   10   10    3    7   14    7   19    3 |    31   31   29   32   27   29   32   25   26   24    28
  32E |    8    9   14   12   17    4    8    9    9   14    4 |    21   22   19   24   17   21   23   21   21   27    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12   10   12   13    4    7   14    8   18      |T   30   31   29   31   28   29   31   30   29   34    29
 WRMS |    8   12    9   12   11    4    7   12    7   17      |NE  22   24   21   22   20   21   24   21   21   26    21
 MEDI |    8   10    8   10   11    4    6   13    8   17      |MD  22   26   22   25   22   21   25   23   23   27    21

Table 3.2074.3   GPS week: 2074   Day: 3   MJD: 58765.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    8    7    7    6    3    5   10    7    9    2 |    31   35   31   31   30   31   33   29   31   33    31
   2  |    8    7    5   10    8    3    6   18    7   25    3 |    27   31   30   31   28   30   31   37   32   38    30
   3  |    8    8    6    7    6    2    7    8    4   12    2 |    23   32   27   26   25   26   32   26   26   33    26
   5  |    6   10    6    9    8    4    7   14    9   17    3 |    48   45   44   45   44   43   48   38   44   40    44
   6  |    6    7    7    7    7    3    5    8    6   14    2 |    28   33   29   28   28   29   33   31   31   37    30
   7  |    7    8    6   11   12    3    7   20    9   17    3 |    29   32   31   36   31   31   33   25   30   30    30
   8E |    7   10   18   23   11    4    7    8    8   20    4 |    29   29   28   35   32   27   30   26   27   33    28
   9E |    8   11   16   18   19    3    6   10    8   14    4 |    29   34   30   36   31   31   32   33   33   35    30
  10  |   10    8    5    7    8    4    7   11    6   13    2 |    32   35   31   34   32   31   36   34   32   36    32
  11  |   13   13   13   11   14    3    7    8    9   14    4 |    31   35   29   35   31   30   33   32   31   33    30
  12  |    9   14    5    8    7    3    6   18    9   22    3 |    31   36   31   33   33   33   34   35   35   40    33
  13E |    6   10    6   12   18    5    6   13    8   16    3 |    37   40   39   37   35   36   39   40   38   38    37
  14E |    7   14    7   10   12    4    7   14    6   14    3 |    49   49   50   49   51   49   48   52   52   52    50
  15  |    8   15    8    7   26    4   10   19    8   24    4 |    70   75   70   73   79   71   72   73   71   70    71
  16  |    5   18    6    7    7    3    8   17    9   23    3 |    23   27   25   25   25   24   27   28   27   28    25
  17E |   10   12    5   12   14    3   10   13   11   13    4 |    64   62   60   63   67   61   60   57   61   64    61
  18  |    7    9   10   11   10    7    7    8    9   15    3 |    26   27   24   29   26   24   25   26   23   26    24
  19E |    6   13    9   12    7    3    6   15    8   16    3 |    25   27   28   26   26   27   26   27   31   27    26
  20  |    9    7    6    7    8    5    6   20    8   22    3 |    26   28   26   27   25   26   29   37   28   37    27
  21  |    9   11    7    8   13    5    5   21    8   27    4 |    25   34   27   28   27   26   30   35   29   33    27
  22  |    5    7    8    7   10    3    7   15    7   19    3 |    25   31   28   30   26   29   29   34   31   33    28
  23E |    9   25    9   10   12    5    7   16   10   17    4 |    27   31   30   29   27   30   29   33   33   32    28
  24  |    9   10   10    8    8    4    5   11    7   17    3 |    28   31   26   28   25   27   29   27   28   31    28
  25  |    8   10    8    8    7    3    6   12    8   17    3 |    26   32   30   28   26   28   29   30   28   36    28
  26  |    6    6    9    7    8    2    6    9    7   17    2 |    26   31   30   26   27   28   31   32   28   41    28
  27E |    9   12   16   19   12    4    6    9   10   14    4 |    31   31   33   34   32   31   33   33   34   33    31
  28  |    7   10    6    9   10    3    5   14    5   15    3 |    25   32   27   29   28   26   31   29   26   29    27
  29E |    7   16   13   11   15    6   10   22   31   23    6 |    75   81   81   81   74   80   80   81   75   85    77
  30  |    7   11   10   11   12    2    6    9    6    9    3 |    28   33   33   32   29   30   35   32   31   35    31
  31  |    6   10    9   10    9    2   12   15    9   21    4 |    33   37   31   38   35   34   36   35   36   37    34
  32E |    9   14   13   11   13    4    7    9    8   13    3 |    24   26   25   28   23   26   26   27   26   29    24
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12    9   11   12    4    7   14   10   18      |T   33   36   34   35   34   34   36   35   35   38    34
 WRMS |    8   12    9    9   10    4    7   13    7   16      |NE  28   32   29   30   29   29   32   31   30   34    29
 MEDI |    8   10    8   10   10    3    7   13    8   17      |MD  28   32   30   31   29   30   32   33   31   35    30

Table 3.2074.4   GPS week: 2074   Day: 4   MJD: 58766.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    7    7    7    7    3    6    6    7   11    2 |    19   24   20   20   19   18   23   18   18   22    19
   2  |   11   11    6    8    9    3    7   21   13   25    4 |    19   20   18   19   17   17   17   27   21   27    17
   3  |    6    8    7    7    7    2    7    8    9   13    2 |    16   25   18   20   17   17   23   16   15   24    17
   5  |    8   10    8    9    9    5    8   16    8   20    3 |    36   38   36   36   37   36   38   29   36   34    35
   6  |    9    6    7    7    7    4    8    9    9   13    3 |    17   27   21   21   19   21   24   20   23   30    21
   7  |   16    9    7    6   11    4    6   19   10   16    4 |    26   30   28   27   28   27   30   21   29   27    26
  X8E |   11  ---   17   18   10    3   10   10    9   22    5 |    28  ---   27   27   27   25   28   24   25   30    24
   9E |   12   14   15   10   16    4    8   10   10   12    4 |    31   34   30   33   32   31   33   32   33   32    31
  10  |   10    7    5    5    8    4    6   11    8   17    3 |    22   28   23   20   24   22   26   21   24   30    22
  11  |   18   13   12   10   15    3    7    8    8   16    4 |    28   27   18   24   20   22   26   22   25   21    20
  12  |   12   16    7    8    9    4    7   19   12   26    4 |    29   30   26   28   26   28   30   31   30   36    27
  13E |    9    9    6   11   23    5    8   12   12   15    4 |    42   39   38   38   39   38   39   39   43   40    38
  14E |    8   11    5    9   11    3   11   10    8   11    3 |    25   25   25   29   26   26   24   28   28   27    25
  15  |    8   12   10    8   20    4    9   19   11   24    4 |    72   75   72   73   75   74   74   73   76   73    73
  16  |    8   18    6    8    9    2   10   18    9   24    4 |    23   24   22   23   22   21   22   22   20   26    21
  17E |   10   10    5   15   14    4    8   12   10   15    4 |   102  105  105  105  110  104  103  105   98  108   103
 X18  |    9   13    9   15   14    5  ---   10    8   13    4 |    30   29   30   31   24   28  ---   25   31   25    26
  19E |   14   14    8   10    9    3    7   19   18   18    4 |    25   22   22   23   21   20   21   22   25   24    19
  20  |    9    8    7    9    7    4    5   22    6   23    3 |    28   27   27   26   25   26   27   36   28   37    26
  21  |    9   11    8    8   12    3    7   22    6   26    4 |    20   24   18   21   18   18   21   26   18   22    18
  22  |    6    6    9    5   13    2    7   12    8   19    3 |    28   30   25   28   22   25   26   28   29   24    25
  23E |   10   25    7    8   12    5    7   14   12   17    4 |    23   22   24   25   20   25   23   26   27   26    23
 X24  |    2  ---  ---  ---  ---   39  ---  ---  ---  ---    0 |    19  ---  ---  ---  ---   18  ---  ---  ---  ---    20
  25  |    9   10    9    8    9    4    7   13    7   13    3 |    18   24   20   19   17   17   22   20   18   26    18
  26  |    8    8    7    6    8    3    7    8    7   14    2 |    26   30   28   26   25   25   28   23   23   35    25
  27E |   10   14   17   18   12    4   10   11    9   21    5 |    35   41   35   34   33   33   32   32   32   37    32
  28  |    7    9    6    8    9    3    6   14    9   17    3 |    19   25   20   20   20   19   23   16   21   19    19
  29E |   13   18    7    9   15    6    7   17    9   17    4 |    76   75   78   77   80   76   74   80   79   84    77
  30  |    6    7   11    8   12    3    8   10    5    8    3 |    19   23   23   18   20   20   26   19   20   27    21
  31  |    7   11   10    9    9    2   11   13    9   16    3 |    34   35   33   35   34   33   34   30   34   31    32
  32E |    8   12   12    8   11    3    8   10   11   13    3 |    22   24   20   21   17   20   22   20   22   23    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   12    9    9   12    4    8   14   10   18      |T   30   33   31   31   30   30   32   31   31   34    29
 WRMS |   10   12    9    9   11    4    8   12    8   12      |NE  23   27   23   24   22   22   25   23   24   27    22
 MEDI |    9   11    7    8   10    4    7   12    9   16      |MD  26   27   25   26   24   25   26   25   25   27    24

Table 3.2074.5   GPS week: 2074   Day: 5   MJD: 58767.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    8    9    7    7    9    2    5    7    5   11    2 |    22   26   21   22   22   21   25   19   21   25    21
   2  |    9   11    5    8   11    4    7   20    9   24    4 |    30   31   29   30   31   30   31   37   33   38    30
   3  |    6    8    5    7    9    2    5    7    8   14    2 |    18   26   16   19   18   18   24   17   17   27    19
   5  |    7   11    7    9    9    4    7   15   12   18    3 |    35   37   34   35   34   35   39   32   37   37    34
   6  |    8    9    7    9    9    4    6    9    7   12    2 |    23   25   22   22   21   22   26   23   23   32    23
   7  |    9    9    5   10   13    3    5   21    8   15    3 |    29   30   27   32   32   28   31   26   29   26    28
   8E |    8   12   17    9   15    6    8   12    9   25    4 |    27   30   29   31   35   27   28   23   26   27    26
   9E |    7   11   15   15   15    3    8   10    9   12    4 |    29   31   31   32   30   30   31   33   33   29    29
  10  |    7   10    6    8    7    4    7   11    6   14    3 |    27   34   29   28   27   27   30   29   29   33    28
  11  |   11   11   14    8   14    2    7   10    7   15    3 |    26   26   19   27   24   22   26   23   24   24    22
  12  |   10   12    6    9    8    4    7   22    7   24    4 |    20   26   22   23   24   22   26   25   24   33    23
  13E |    6   10    5    7   15    4    6   13   10   16    3 |    47   46   45   46   44   46   45   47   47   42    45
  14E |    8    8    6    8    9    4    6   11    9   13    3 |    25   28   28   26   30   28   26   32   29   30    27
  15  |   10   14    7    8   15    3    8   17    9   24    4 |    60   65   60   61   61   60   63   61   65   62    61
  16  |    6   18    4    8    7    4    6   18    9   24    3 |    20   20   18   22   20   19   20   20   19   25    18
  17E |    7    9    5   14   19    4   10   12   10   14    4 |   115  116  116  119  115  117  119  118  120  118   117
 X18  |    8    9    8   16   14    9  ---   13    6   12    4 |    23   26   23   24   22   20  ---   22   24   30    21
  19E |    6   10   10   12   12    3    7   22   22   16    4 |    16   17   17   19   21   16   17   19   27   17    16
  20  |    7    8    7    7    8    4    7   19    7   22    3 |    26   24   23   21   22   21   25   32   22   32    23
  21  |   10   11    8   10   12    5    8   21    8   26    4 |    23   28   22   21   22   21   25   30   24   28    21
  22  |    5    8    7    8   11    3    6   13    8   19    3 |    18   24   17   19   20   18   24   19   19   22    19
  23E |    6   30    6   11   14    6    7   12    8   16    4 |    25   25   25   28   26   27   23   28   28   28    24
  24  |   11   11   10   12    9    5   11   14    8   17    4 |    23   27   21   22   21   21   25   21   21   27    22
  25  |    9    8    9   10    7    4   11   11    8   12    3 |    20   26   22   21   20   20   27   22   22   29    21
  26  |   10    8    6    7    7    4    5    8    8   17    3 |    22   26   22   24   22   23   27   21   21   33    23
 X27E |    7  ---   15   26   13    4   11   14   12   24    5 |    39  ---   36   43   41   37   37   37   35   39    36
  28  |    9    9    6   12   10    3    7   15    7   17    3 |    21   25   21   22   25   22   27   22   24   26    22
  29E |   10   16    8   12   12    4    7   18    9   17    4 |   116  122  121  119  122  121  121  123  119  125   121
  30  |    9   10   11   11   12    3    7   12    8    9    3 |    21   27   26   23   25   23   28   23   26   28    24
  31  |    7   10    8   11   10    4    7   13    9   17    3 |    27   27   24   32   24   26   29   24   25   23    25
  32E |   10   12   13   10    7    5    9    8    9   12    3 |    22   22   18   19   17   19   22   21   20   22    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   12    9   10   11    4    7   15    9   18      |T   32   34   31   33   32   31   34   33   33   36    31
 WRMS |    8   12    8    9   11    4    7   12    8   18      |NE  23   27   22   24   23   22   27   24   24   28    23
 MEDI |    8   10    7    9   11    4    7   13    8   16      |MD  25   26   23   24   24   23   27   24   25   29    23

Table 3.2074.6   GPS week: 2074   Day: 6   MJD: 58768.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |    6    9    9    9    8    3    7    7    4   10    2 |    22   28   24   23   23   23   27   22   22   24    23
   2  |    8    8    5    8   10    2    7   20    7   20    3 |    33   34   32   37   30   34   33   45   33   40    32
   3  |    7    7    5    7    6    3    7    8    6    6    2 |    24   30   22   23   22   22   28   21   19   30    23
   5  |    8   10    7    8    6    4    8   17    7   19    3 |    51   50   50   51   50   49   53   41   52   45    49
   6  |    7    6    6    6    6    2    8    7    7    7    2 |    24   29   25   24   26   25   29   25   26   33    25
   7  |    7   11    6    8    9    3    7   18    8   15    3 |    26   31   27   31   28   27   30   22   27   26    27
   8E |    7   11   17    6    8    4    9    7    9    9    3 |    26   27   26   30   27   25   27   26   25   27    25
   9E |   16   15   17   13   11    6    8   13    7    7    4 |    87   85   81   89   83   83   86   80   84   87    85
  10  |    9    7    5    7    7    5    6   12    7   10    2 |    22   31   24   23   24   22   27   27   23   30    23
  11  |   10   13   14   10   13    4    8   11   10   14    4 |    23   27   17   24   24   21   25   23   25   22    21
  12  |   10   14    7    6    6    5    6   21    6   17    3 |    30   33   26   29   29   28   31   30   29   37    29
  13E |   10    8    7   14   11    5    8   13   10   15    3 |    83   85   83   84   87   84   85   85   83   88    83
  14E |    8    8    6    8   11    5    7   13    6   12    3 |    40   45   42   40   45   42   40   48   42   47    42
  15  |    9   12    8    9   11    3    8   18    8   21    4 |    67   74   69   70   72   69   72   71   70   70    69
  16  |    6   19    6    8    8    3    8   18    9   20    4 |    22   22   18   22   18   19   19   18   18   21    17
  17E |    9   10    5    8    9    3    8   11   10    9    3 |   159  155  155  155  154  155  154  157  153  152   155
  18  |   10   10   12   14   10    7    7    9   11    8    3 |    23   27   22   29   24   26   23   27   28   26    24
  19E |    9   12   13    8   11    3    6   22   15   15    4 |    28   27   25   25   28   26   28   29   30   24    26
  20  |    7    7    8   10    6    5    6   19    7   20    3 |    30   28   30   24   30   27   30   40   26   39    29
  21  |   10   12    7    9   13    5    7   23   10   25    4 |    21   28   19   24   23   21   24   34   20   32    20
  22  |    5    6    9    7    9    3    7   13    7   17    3 |    29   32   26   29   31   28   31   29   27   31    28
  23E |    8   24    5   14   10    4    6   13   11   13    4 |    38   31   35   42   36   36   33   39   31   44    35
  24  |   11   11   11    5    7    5    7   10    6   12    3 |    24   29   25   21   22   22   23   22   23   26    22
  25  |   10    9    8   10    6    5    6   12    8   11    3 |    20   26   22   24   20   20   23   21   18   28    20
  26  |    8    7    7    8    5    2    8    6    7   11    2 |    24   28   25   25   22   24   26   22   22   34    24
  27E |    7   14   16   10    8    5    6   11    9   10    3 |    38   41   39   43   41   39   40   40   39   40    39
  28  |    6   10    6    8    8    4    8   15    8   13    3 |    19   26   20   19   19   19   25   17   20   20    19
  29E |   16   17    7   13   14    4    8   20   11   15    4 |   142  146  145  141  146  142  146  146  140  142   144
  30  |    6   10   10    8   11    4    9   10    5   10    3 |    25   27   28   23   26   25   30   24   25   30    25
  31  |   10    9    8   10    7    4    8   12   11   15    3 |    31   32   28   33   31   29   31   28   27   27    28
  32E |    9   10   13   15    8    6   11   11    6   10    3 |    28   30   25   28   27   27   30   34   27   29    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   11    9    9    9    4    8   14    8   14      |T   40   43   39   41   40   39   42   41   39   43    39
 WRMS |    8   11    9   10    9    4    8   13    7   18      |NE  26   29   25   26   26   25   28   26   25   30    25
 MEDI |    8   10    7    8    8    4    7   13    8   13      |MD  28   30   26   29   28   27   30   29   27   31    27



Table 4: Precise Navigation Summary.

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

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

Table 4.2074   GPS week: 2074   MJD: 58762.0-58768.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2983 |U   10    10    25 |U    0     0     0 |U   10    12    26 |
emr | emr 2934 |U   13    15    33 |U    0     0     0 |U   13    11    41 |
esa | esa 2976 |    11    12    27 |U    0     0     0 |     9    10    31 |
gfz | gfz 2961 |U   10    11    24 |U    0     0     0 |U   10    11    28 |
grg | grg 2960 |U    9    11    29 |U    0     0     0 |    10    11    23 |
igr | igr 2960 |    10    10    24 |     0     0     0 |     9    11    29 |
igs | igs 2968 |     9    11    24 |     0     0     0 |     9    10    28 |
jpl | jpl 2934 |U   12    15    30 |U    0     0     0 |U   10    10    39 |
mit | mit 2962 |    13    13    33 |U    0     0     0 |U   12    12    29 |



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 5.2074.0   GPS week: 2074   Day: 0   MJD: 58762.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     8     9    33 |  ----  ----  ---- |    10    10    31 |
emr | emr 2975 |     9    14    37 |  ----  ----  ---- |    15    10    37 |
esa | esa 3072 |    11     9    34 |  ----  ----  ---- |    11     9    31 |
gfz | gfz 2975 |    10     9    31 |  ----  ----  ---- |     9    10    30 |
grg | grg 2975 |    10    11    37 |  ----  ----  ---- |     9     7    21 |
igr | igr 2975 |     8     8    32 |  ----  ----  ---- |     9     9    31 |
igs | igs 3021 |     8     8    31 |  ----  ----  ---- |     9     8    28 |
jpl | jpl 2976 |     9    11    32 |  ----  ----  ---- |    11     9    39 |
mit | mit 2976 |     9     8    28 |  ----  ----  ---- |    11     9    27 |

Table 5.2074.1   GPS week: 2074   Day: 1   MJD: 58763.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3032 |    12    10    27 |  ----  ----  ---- |    12    14    26 |
emr | emr 2975 |    12    10    36 |  ----  ----  ---- |    15    13    38 |
esa | esa 2976 |    12    10    27 |  ----  ----  ---- |    11    11    29 |
gfz | gfz 2975 |    13    11    24 |  ----  ----  ---- |    12    14    27 |
grg | grg 2975 |    12    12    28 |  ----  ----  ---- |    12    13    23 |
igr | igr 2975 |    12    11    23 |  ----  ----  ---- |    11    12    26 |
igs | igs 2974 |    11    10    22 |  ----  ----  ---- |    12    12    27 |
jpl | jpl 2976 |    14    15    26 |  ----  ----  ---- |    13    12    38 |
mit | mit 2976 |    14    17    26 |  ----  ----  ---- |    13    12    27 |

Table 5.2074.2   GPS week: 2074   Day: 2   MJD: 58764.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    11    29 |  ----  ----  ---- |    11    11    25 |
emr | emr 2976 |    14    16    34 |  ----  ----  ---- |    13    11    39 |
esa | esa 2976 |    10    11    28 |  ----  ----  ---- |     9     8    26 |
gfz | gfz 2976 |     9    11    30 |  ----  ----  ---- |    10    11    29 |
grg | grg 2976 |     9    10    33 |  ----  ----  ---- |    11     9    21 |
igr | igr 2966 |     9    10    28 |  ----  ----  ---- |    10     9    28 |
igs | igs 2975 |     9    11    27 |  ----  ----  ---- |     9     8    26 |
jpl | jpl 2976 |    14    15    31 |  ----  ----  ---- |    10    13    35 |
mit | mit 2976 |    21    18    76 |  ----  ----  ---- |    15    12    24 |

Table 5.2074.3   GPS week: 2074   Day: 3   MJD: 58765.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    10    24 |  ----  ----  ---- |     9    11    26 |
emr | emr 2976 |    10    13    37 |  ----  ----  ---- |    13    12    41 |
esa | esa 2976 |     9    15    27 |  ----  ----  ---- |     9     8    28 |
gfz | gfz 2976 |     9    12    23 |  ----  ----  ---- |    10    12    27 |
grg | grg 2975 |     8    14    28 |  ----  ----  ---- |    11    10    22 |
igr | igr 2976 |     8    13    25 |  ----  ----  ---- |     9    10    28 |
igs | igs 2975 |     8    13    27 |  ----  ----  ---- |     9     9    27 |
jpl | jpl 2976 |    11    16    37 |  ----  ----  ---- |     9     9    34 |
mit | mit 2976 |     9    11    24 |  ----  ----  ---- |    10    11    30 |

Table 5.2074.4   GPS week: 2074   Day: 4   MJD: 58766.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2879 |    13     8    18 |  ----  ----  ---- |     9    14    23 |
emr | emr 2784 |    18    16    32 |  ----  ----  ---- |    12     9    37 |
esa | esa 2880 |    15    12    24 |  ----  ----  ---- |     7    12    33 |
gfz | gfz 2879 |    13     9    19 |  ----  ----  ---- |     9    12    27 |
grg | grg 2872 |    12     9    25 |  ----  ----  ---- |     9    13    22 |
igr | igr 2879 |    13     9    20 |  ----  ----  ---- |     8    12    29 |
igs | igs 2879 |    13    11    21 |  ----  ----  ---- |     7    11    27 |
jpl | jpl 2784 |    17    19    27 |  ----  ----  ---- |     9    12    41 |
mit | mit 2880 |    18    10    27 |  ----  ----  ---- |    14    14    37 |

Table 5.2074.5   GPS week: 2074   Day: 5   MJD: 58767.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    10    21 |  ----  ----  ---- |     9    10    24 |
emr | emr 2880 |    14    16    26 |  ----  ----  ---- |    12    10    38 |
esa | esa 2976 |     9    13    23 |  ----  ----  ---- |     8     8    27 |
gfz | gfz 2976 |    10    12    23 |  ----  ----  ---- |     9     9    25 |
grg | grg 2976 |     9    12    30 |  ----  ----  ---- |     8    13    23 |
igr | igr 2976 |     9    11    23 |  ----  ----  ---- |     8     9    26 |
igs | igs 2976 |     8    12    22 |  ----  ----  ---- |     7     9    25 |
jpl | jpl 2880 |    10    13    25 |  ----  ----  ---- |     8     8    41 |
mit | mit 2976 |    11    13    23 |  ----  ----  ---- |    10     9    23 |

Table 5.2074.6   GPS week: 2074   Day: 6   MJD: 58768.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    12    23 |  ----  ----  ---- |    11    13    26 |
emr | emr 2976 |    12    24    28 |  ----  ----  ---- |    15     9    58 |
esa | esa 2976 |     8    14    22 |  ----  ----  ---- |    11    12    41 |
gfz | gfz 2976 |     9    11    20 |  ----  ----  ---- |    12    13    31 |
grg | grg 2975 |     8    10    23 |  ----  ----  ---- |    12    13    27 |
igr | igr 2976 |     8    12    20 |  ----  ----  ---- |    10    13    34 |
igs | igs 2976 |     8    13    20 |  ----  ----  ---- |    10    13    33 |
jpl | jpl 2976 |    10    17    30 |  ----  ----  ---- |    13    10    43 |
mit | mit 2976 |     9    16    25 |  ----  ----  ---- |    13    14    33 |


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 6.2074   GPS week: 2074   MJD: 58762.500-58768.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -28     -21      29     -68      2 |      20     27
            |      20      16      54      71      7 |       3
emr   uuuux |      -4      46    -118      79     28 |      21     36
            |      21      22      78      47     12 |      14
esa   uuuuu |      11      19      -4     -37      0 |      27     31
            |      13       9      25      61      3 |       2
gfz   uuuuu |      18     -10     -39     118     -2 |      25     29
            |      16      21      64      37      4 |       2
grg   uuuuu |      27     -19     -20     113      0 |      -4     15
            |      24      21      28      58      3 |       2
igr   xxxxx |      46      14      21      44     -1 |      -3     15
            |      11       9      40      21      2 |       2
irf   xxxxx |       9       3     -54      20     -2 |      -4     16
            |       9      12      16      14      3 |       3
jpl   uuuuu |      -7       6      26      -4     -5 |      59     62
            |      19      14      30      39     12 |       2
mit   uuuuu |       1      28    -144      11    -10 |      32     35
            |      14      19      46      46      3 |       4
ngs   uuuuu |     -10     -31     168    -124      2 |      11     18
            |      26      43      78      75      5 |       3
sio   uuuux |       2      -8     -70     -27    -15 |      98    100
            |      18      18      70      64      7 |       4


Table 7.2074.0   GPS week: 2074   Day: 0   MJD: 58762.500

                                                         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 |     -31     -30     119     -67     -8 |      26     31
emr   uuuux |      31      27    -137      88     12 |       7     30
esa   uuuuu |      21      12      26     -77     -1 |      31     34
gfz   uuuuu |      13     -25      44     112     -4 |      30     32
grg   uuuuu |       9     -35      -9      35      5 |      -1     14
igr   xxxxx |      42       2     -12      58     -2 |       1     14
irf   xxxxx |       9      -9     -62      14     -7 |       1     15
jpl   uuuuu |       3       2      38      42     15 |      62     64
mit   uuuuu |      17      30    -176     -25     -9 |      39     42
ngs   uuuuu |     -33      25      25     -46     -5 |      16     21
sio   uuuux |      -9      12    -178     -56     -8 |     105    105

Table 7.2074.1   GPS week: 2074   Day: 1   MJD: 58763.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -28     -49      59    -164      0 |      19     24
emr   uuuux |       9      40    -169     103     34 |       4     29
esa   uuuuu |      -2      25     -26    -116      0 |      26     29
gfz   uuuuu |      20     -25       0     158      3 |      25     28
grg   uuuuu |      24       8     -26     177      1 |      -5     13
igr   xxxxx |      43      24      36      11      1 |      -4     14
irf   xxxxx |       5      -2     -40      44      0 |      -5     15
jpl   uuuuu |      18      -2     -24      12      2 |      59     61
mit   uuuuu |      -5      -3     -99      74     -7 |      33     36
ngs   uuuuu |     -23       8     196    -118     -1 |      11     16
sio   uuuux |     -24     -11     -53      62     -9 |      99    100

Table 7.2074.2   GPS week: 2074   Day: 2   MJD: 58764.500

                                                         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 |     -35       1     -63     -95      8 |      18     24
emr   uuuux |       0      31    -155      30     25 |      11     34
esa   uuuuu |      28      34     -30      19      3 |      26     29
gfz   uuuuu |       0     -35    -123      94     -5 |      25     29
grg   uuuuu |      -6     -35     -26     103      1 |      -5     14
igr   xxxxx |      28      12      35      55      2 |      -3     14
irf   xxxxx |      -5      -4     -51      26     -1 |      -5     15
jpl   uuuuu |       0     -13      59       2     -6 |      59     61
mit   uuuuu |       8      30    -124      -1    -10 |      32     35
ngs   uuuuu |       7      -1     255     -56     -2 |      10     15
sio   uuuux |      -4     -29      -2      -4     -9 |      99    100

Table 7.2074.3   GPS week: 2074   Day: 3   MJD: 58765.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -1     -28      31      -8     -6 |      21     27
emr   uuuux |      -2      57     -81     125     43 |      20     37
esa   uuuuu |      -6      27     -34     -62      1 |      28     31
gfz   uuuuu |       5      20     -72      57      0 |      27     30
grg   uuuuu |      43     -31     -51     139      1 |      -2     13
igr   xxxxx |      46      19      24      41      0 |      -1     14
irf   xxxxx |      18      25     -30       1     -4 |      -3     15
jpl   uuuuu |      -6      20      19      14     -2 |      61     63
mit   uuuuu |      14      38     -73     -43    -10 |      33     35
ngs   uuuuu |     -25     -72     178    -114      4 |      12     17
sio   uuuux |       1      -5     -58    -104    -15 |     101    102

Table 7.2074.4   GPS week: 2074   Day: 4   MJD: 58766.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -2     -13      25      14      2 |      18     27
emr   uuuux |     -28      89    -206      51     43 |      28     35
esa   uuuuu |      22      14      22     -79      1 |      26     31
gfz   uuuuu |      16     -16      30     107     -2 |      25     30
grg   uuuuu |      13     -19      35      37     -3 |      -3     15
igr   xxxxx |      63       6      81      45     -5 |      -2     17
irf   xxxxx |      22      13     -52      27     -1 |      -5     18
jpl   uuuuu |      -2      28       9      17     -5 |      60     63
mit   uuuuu |       4      37    -194      69     -9 |      30     35
ngs   uuuuu |     -38     -89     164    -150      7 |       9     17
sio   uuuux |      18     -34     -25     -68    -27 |      99    100

Table 7.2074.5   GPS week: 2074   Day: 5   MJD: 58767.500

                                                         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 |     -46     -13      13      -8     10 |      15     24
emr   uuuux |     -28      33      32     137     16 |      33     40
esa   uuuuu |       5       9       2      46     -5 |      24     28
gfz   uuuuu |      51      14     -60     161     -8 |      22     27
grg   uuuuu |      53     -34     -46     133     -2 |      -5     16
igr   xxxxx |      48      25      28      73     -2 |      -6     17
irf   xxxxx |       8       4     -78      14     -3 |      -8     19
jpl   uuuuu |     -22      -1      17     -47    -26 |      57     59
mit   uuuuu |     -17      53    -167     -20    -15 |      27     32
ngs   uuuuu |      21     -40     120    -272      7 |       7     16
sio   uuuux |       0      13     -16     -71    -18 |      93     95

Table 7.2074.6   GPS week: 2074   Day: 6   MJD: 58768.500

                                                         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 |     -53     -18      17    -147      8 |      20     30
emr   uuuux |     -12      46    -113      16     25 |      41     47
esa   uuuuu |       6      15      10       6      0 |      26     31
gfz   uuuuu |      20      -4     -92     134      1 |      24     30
grg   uuuuu |      55      13     -20     169     -2 |      -3     17
igr   xxxxx |      55       8     -47      22     -1 |      -4     18
irf   xxxxx |       5      -3     -66      14      0 |      -6     19
jpl   uuuuu |     -42       7      61     -67    -11 |      57     59
mit   uuuuu |     -15       8    -176      22     -9 |      27     32
ngs   uuuuu |      23     -49     237    -110      4 |      10     21
sio   uuuux |      33       1    -158      51    -20 |      92     95


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