[IGSREPORT-29844] Wk 2309 IGS Final Orbits

acc acc at igs.org
Fri Apr 26 02:16:22 UTC 2024


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2309   (Apr 07, 2024 - Apr 13, 2024)

Contacts: acc at igs.org


COMBINATION STRATEGY:
---------------------

Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

Each centre satellite clock corrections are first transformed to a common 
reference. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. Ephemerides and clock corrections are then combined
as weighted averages computed over all centres. Each centre is given a
position weight and a clock weight. The position weights are computed from
each centre's absolute deviation to the unweighted average orbit after the
estimation of a 7-parameter Helmert transformation. The clock weights are
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. All the above estimations are performed using the
L1-norm robust scheme.

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data at each SP3 epoch. This is
primarily intended for testing clock solution precision as well as the
orbit/clock consistency.

 Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c  [distance unit],

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility with broadcast GPS time, the IGS clocks use
the linear combination of phase-smoothed P1 and P2 pseudorange data to remove
the 1st order ionospheric delay, with no other delay calibrations applied.


SOFTWARE:
---------

The weighted average software used was originally developed by T. Springer
and G. Beutler in 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

  Beutler G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
  Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

  Kouba J., Mireault Y. and F. Lahaye, 1995, 1994 IGS Orbit/Clock Combination
  and Evaluation, Appendix I of the Analysis Coordinator Report, International
  GPS Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

  Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
  pp. 45-76.

  Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
  pp. 55-100.


PRODUCTS GENERATED:
-------------------

The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite over each daily arc. Note that each file
contains all the satellites that appear in any of the centre ephemeris files.
If a satellite or centre was excluded from combination, a note in the REMARKS
section of this report will identify the exclusion and the reason.

The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (as part of the separate SINEX combination since GPS
week 1051; weighted according to the orbit combination before that time). 

Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions. AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 10 days, i.e. up to 5 days prior to the last
non-predicted day of Bulletin A. AC LOD biases are removed and the new AC
bias-free LODs are used to compute a weighted IGS LOD which in turn is
integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as Bulletin
A fifth day prior to its last non-predicted day. Both IGS LOD and UT1-UTC
values are printed in the IGS Final erp file.



The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

IGS0OPSFIN_${yyyy}${doy}0000_01D_15M_ORB.SP3  IGS GPS ephemeris files in SP3
                                              format.
IGS0OPSFIN_${yyyy}${doy}0000_01D_05M_CLK.CLK  IGS GPS satellite and station
                                              clocks in clock RINEX format.
IGS0OPSFIN_${yyyy}${doy}0000_01D_01D_CLS.SUM  IGS GPS clock combination summary
                                              report.
IGS0OPSFIN_${yyyy}${doy}0000_07D_01D_ERP.ERP  Earth Rotation Parameters (ERP)
                                              and their rates as well as
                                              Universal Time (UT1-UTC) and
                                              Length Of Day (LOD) associated 
                                              with IGS ephemerides.
IGS0OPSFIN_20240980000_07D_01D_SUM.SUM        Complete report.

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

 1. The centres used in the clock combination are COD, ESA, GFZ, and GRG.
    The other centres are excluded because of either poorer consistency, or they provide
    broadcast clocks, or clock corrections are not provided (SIO). The clock
    information not used is still compared to the combination for completeness. The
    value of 999999.999999 microseconds, according to the SP3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks
    contributed from that AC should not be included with weight in this
    combination. This is done to ensure a high level of consistency between the TRF
    and the orbital frame. However, there is an exception for the clocks if the AC
    is the reference center. In that case, only the clocks from that AC are
    included with weight.
    

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1582, a new orbit solution from CNES/GRGS (GRG) is included with
    weight. GRG clocks are included with weight starting 12-Aug-2012 (GPS Week
    1701, day 0, MJD 56151), after a procedural change to generate estimates in
    the center-of-figure frame instead of the center-of-mass frame. GRG LOD
    estimates are included for comparison only.

 3. The following centre clock solutions, which provide broadcast clock
    corrections, were excluded from the combination but kept in the combination
    statistics:
             -> Centre: NGS 

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation. Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | ASCG
                0  |  EMR   | BRAZ
                0  |  ESA   | BAKE
                0  |  GFZ   | BRAZ POHN BRAZ POHN
                0  |  GRG   | CZTG DAV1 HYDE CZTG DAV1 HYDE SVTL
                0  |  MIT   | DRAO FLIN GAMG IRKJ NLIB OWMG SFER TIDB TLSE TRO1
                0  |  MIT   | DRAO FLIN GAMG IRKJ NLIB OWMG SFER TIDB TLSE TRO1
                1  |  COD   | DRAO
                1  |  ESA   | UNSA CHUR DJIG NRMD SEYG UNSA
                1  |  GFZ   | DRAO
                1  |  GRG   | 21 DAV1 JFNG LPGS OUS2 TONG WIND COCO DAV1 DJIG LPGS
                1  |  GRG   | OUS2 SEYG SVTL TONG WIND
                1  |  JGX   | NRMD
                1  |  MIT   | MGUE MKEA OWMG SFER STR1 TLSE TONG YEBE MGUE MKEA
                1  |  MIT   | OWMG SFER STR1 TLSE TONG
                2  |  COD   | BOGT HYDE PTVL BOGT HYDE
                2  |  EMR   | SALU
                2  |  ESA   | DAV1 MAL2 DAV1 MAL2
                2  |  GFZ   | PTVL
                2  |  GRG   | COCO DJIG
                2  |  MIT   | GAMG GLPS IRKJ KARR MARS METG NOT1 OWMG PDEL SFER
                2  |  MIT   | TONG WILL YEBE GAMG GLPS IRKJ KARR MARS METG NOT1
                2  |  MIT   | OWMG SFER TONG WILL YEBE
                3  |  COD   | HRAO NNOR HRAO NNOR OUS2
                3  |  GFZ   | 5 POHN POHN
                3  |  GRG   | AREQ CZTG SGOC COCO CZTG DAV1 HYDE NKLG SGOC SVTL
                3  |  JGX   | NTUS
                3  |  MIT   | KITG KOUG MARS MKEA OWMG SFER STJ3 THTG TLSE VNDP
                3  |  MIT   | YEBE KITG KOUG MARS MKEA OWMG SFER STJ3 THTG TLSE
                3  |  MIT   | VNDP YEBE
                4  |  COD   | HYDE JOG2 SGOC HYDE JOG2
                4  |  ESA   | SEYG SEYG SGOC
                4  |  GFZ   | POHN POHN
                4  |  GRG   | CZTG DAV1 SCUB COCO CZTG DAV1 DGAR SCUB ULAB
                4  |  MIT   | GODE LMMF MEDI NYA1 OWMG SFER TLSE VNDP YAR3 GODE
                4  |  MIT   | HERS LMMF MEDI NYA1 OWMG SFER TLSE VNDP YAR3
                5  |  COD   | CZTG GUAT SCUB CZTG GUAT
                5  |  ESA   | MAL2 MAL2
                5  |  GFZ   | AREQ SCUB
                5  |  GRG   | AREQ DAV1 HYDE SVTL AREQ HYDE SVTL
                5  |  MIT   | FLIN INVK KITG OWMG SFER TLSE TONG FLIN INVK KITG
                5  |  MIT   | OWMG SFER TLSE TONG
                6  |  COD   | CZTG HYDE MATE MAYG SEYG CZTG MATE
                6  |  ESA   | HYDE
                6  |  GFZ   | POHN POHN
                6  |  GRG   | LPGS MAYG COCO LPGS SVTL
                6  |  MIT   | OWMG SFER TLSE TONG VNDP YAR3 OWMG SFER TLSE TONG
                6  |  MIT   | VNDP YAR3

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

 6. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                4  |  GFZ   |   1

 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 G03 |    |    |    |  4 |  4 |  4 |  4 |

 8. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) all IGS products, including the IGS combined
    orbits, are based on the IGS realization of the ITRF2005 reference frame
    (IGS05). For more information see IGSMAIL #5447. The IGS05 frame is also the
    basis for the homogeneously reprocessed IGS products from GPS Weeks 730 to 1459
    (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) all IGS products, are
    based on the IGS realization of the ITRF2008 reference frame (IGS08). For more
    information see IGSMAIL #6354.
    
    Starting 07-Oct-2012 (GPS Week 1709, day 0, MJD 56207) all IGS products, are
    based on the updated IGS08 frame (IGb08). For more information see IGSMAIL
    #6663.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) all IGS products,
    are based on the IGS realization of the ITRF2014 reference frame (IGS14).
    For more information see IGSMAIL #7399.
    
    Starting 17-May-2020 (GPS Week 2106, day 0, MJD 58986) all IGS products,
    are based on the updated reference frame (IGb14).
    For more information see IGSMAIL #7921.
    
    Starting 28-Nov-2022, all IGS products, are based on the IGS realization of
    the ITRF2020 reference frame (IGS20). Starting from the same date, the IGS
    products are based on the repro3 standards, including long filename formats.
    For more information see IGSMAIL #8238, #8256, #8274 and #8282.
    

 9. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |    -.4    -.7    -.1       0     -5     -2     .05
       EMR  |   0 |   14.9   -2.3     .8      -6      5     -7     .43
       ESA  |   0 |     .4    1.3     .1      -2    -14     27    -.35
       GFZ  |   0 |    1.6    -.2    -.8      -3    -19     23     .38
       GRG  |   0 |     .1   -1.3    -.5     -10     11     43     .04
       JGX  |   0 |    7.4   -2.1    5.3     -38    -33     38     .33
       JPL  |   0 |   10.6   -2.1    8.1      14     65    -52     .71
       MIT  |   0 |    9.2    3.0   26.0     -27    -14     16     .37
       NGS  |   0 |   15.2    1.9    8.7      -1    -27     30     .10
       SIO  |   0 |    6.2    5.1    5.2     -15     26     -7     .33

       COD  |   1 |    -.5    -.8    -.2      -3     -8      0     .13
       EMR  |   1 |   12.5   -4.5     .8       4     13    -19     .18
       ESA  |   1 |     .7     .6    -.1      -3    -15     14    -.30
       GFZ  |   1 |    1.1    -.8   -1.2      -9    -22     27     .54
       GRG  |   1 |     .3    -.5    -.6     -14      8     26     .09
       JGX  |   1 |    9.0   -2.6    2.6      -2    -46     43     .12
       JPL  |   1 |    5.2   -8.1    8.6      10     35    -27     .84
       MIT  |   1 |    9.5     .5   24.1     -33    -14     12     .14
       NGS  |   1 |    7.3   -2.3    8.5     -37     19     -2     .18
       SIO  |   1 |    5.1    6.8    2.8      89      4     11     .28

       COD  |   2 |   -1.1    -.7    -.2       2    -12      4     .14
       EMR  |   2 |    8.6     .4   -2.4     -11      0     -4    -.03
       ESA  |   2 |     .2     .6     .3       4    -21      5    -.24
       GFZ  |   2 |     .8    -.1    -.8       7    -34     13     .57
       GRG  |   2 |     .6    -.6    -.1       5      3     -1     .06
       JGX  |   2 |    5.0   -3.8     .8      15    -28     27     .24
       JPL  |   2 |    2.5   -2.6   14.0      11     36    -42     .89
       MIT  |   2 |    8.2   -1.7   26.4      14    -13     -3     .26
       NGS  |   2 |   12.7    1.4    9.6     -14    -24     12     .17
       SIO  |   2 |     .8    2.9    2.0      85    -85     70     .32

       COD  |   3 |    -.7    -.1    -.8      -4     -1    -11     .05
       EMR  |   3 |    7.3     .1   -5.6      -2     16    -29    -.05
       ESA  |   3 |     .6     .7    -.2      -7    -17     22    -.51
       GFZ  |   3 |     .8    -.3   -1.0      -8    -10     26     .31
       GRG  |   3 |     .6    -.8    -.1      -5     -5     21    -.01
       JGX  |   3 |    5.6   -3.8    -.2       1    -28     40    -.04
       JPL  |   3 |    1.5     .8   10.0      12     66    -27     .61
       MIT  |   3 |    9.8    1.2   29.4     -10     17    -30     .07
       NGS  |   3 |    7.9    2.4    3.5      -2     12    -16    -.01
       SIO  |   3 |    2.2    7.1   14.9      16     25     37     .13

       COD  |   4 |    -.6     .1    -.8      -3      7    -10    -.05
       EMR  |   4 |   10.3   -3.0   -3.4      -7      1    -19     .06
       ESA  |   4 |     .3     .0    -.1      -5    -17     17    -.56
       GFZ  |   4 |     .2    -.2    -.6     -17    -12      8     .35
       GRG  |   4 |    1.1    -.7    -.3      -9    -11     17    -.09
       JGX  |   4 |    5.6   -1.9   -3.3      18    -43     50    -.04
       JPL  |   4 |    3.6   -1.6   11.5       1     49    -28     .75
       MIT  |   4 |   12.2    -.5   29.7      19      4      2    -.15
       NGS  |   4 |   12.9    2.2    4.0       8    -30      8    -.31
       SIO  |   4 |    6.9    5.5    6.1      97    -47     63     .0 

       COD  |   5 |    -.3    -.2    -.5      -6     -4      2    -.13
       EMR  |   5 |   11.4    2.5   -3.2      -6      4    -11     .04
       ESA  |   5 |     .2     .1     .3       1    -14     16    -.56
       GFZ  |   5 |    1.1    -.2    -.2      -5     -8     16     .19
       GRG  |   5 |    1.5    -.4    -.7     -14    -23     31    -.20
       JGX  |   5 |    7.0   -2.2   -1.4      10    -33     42    -.09
       JPL  |   5 |    7.1   -6.0   16.1      -7     53    -35     .45
       MIT  |   5 |    9.5    -.8   28.8       8     -2     32     .09
       NGS  |   5 |   10.3    8.5   11.0      23     -5     -5    -.18
       SIO  |   5 |    4.3    7.0    8.6      60    -33     69     .03

       COD  |   6 |    -.3    -.6    -.1      -3      3     -6    -.04
       EMR  |   6 |    7.2    1.1   -3.2      -4      9    -10     .11
       ESA  |   6 |     .3     .7    -.3      -2     -9     -5    -.63
       GFZ  |   6 |    1.1    -.7    -.3     -16    -12     -1     .29
       GRG  |   6 |    1.1    -.4    -.3     -31      6     27    -.15
       JGX  |   6 |    4.5   -1.8    6.0     -18    -29     35    -.29
       JPL  |   6 |    1.3     .0   12.2      -5     37    -38     .40
       MIT  |   6 |    3.9   -2.1   31.0       9     10     11     .05
       NGS  |   6 |    4.8    4.2    5.5      14     21    -46    -.10
       SIO  |   6 |    -.9    4.3    9.3      57     34    108     .0 


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:
        https://files.igs.org/pub/station/general/igs05.atx
    These antenna calibrations are also used in the homogeneously reprocessed IGS
    products from GPS Weeks 730 to 1459 (1994-2007); see IGSMAIL #6136.
    
    Starting 17-Apr-2011 (GPS Week 1632, day 0, MJD 55668) the absolute antenna
    model is updated (IGSMAIL #6255 & #6374) as given in the file:
        https://files.igs.org/pub/station/general/igs08.atx
    
    The JPL solution did not use IGS08/igs08.atx until GPS Week 1649, which caused
    their RMS clock residuals to be higher during that period than for the other
    centres; from GPS Week 1632 through 1648 the JPL solution is excluded from the
    weekly SINEX combination.
    
    Starting 29-Jan-2017 (GPS Week 1934, day 0, MJD 57782) the absolute antenna
    model file has been updated to igs14.atx to be consistent with IGS14.
    See IGSMAIL #7399 for more information
        https://files.igs.org/pub/station/general/igs14.atx
    
    Starting 28-Nov-2022, the absolute antenna model file has been updated to
    igs20.atx to be consistent with IGS20.
    See IGSMAIL #8238 and #8256 for more information
        https://files.igs.org/pub/station/general/igs20.atx
    
    The JPL final solution has not yet adopted IGS20/igs20.atx after GPS Week 2238, 
    which causes their orbit and clock residuals to be higher than for the other
    centres; from GPS Week 2238 and until they switch to IGS20/igs20.atx, the JPL
    solution is excluded from the weekly SINEX combination, as well as from orbit
    and clock combinations.
    


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 1.2309.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2309.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 2.2309.[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 3.2309.[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 5.2309.0-6). 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 2309 summary.                       (Apr 07, 2024 - Apr 13, 2024)

Table 1.2309.a   GPS week: 2309   MJD: 60407.000-60413.000

         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  823|   -1     0     2     9    13    24  -.03    8    8 |    -738     150      7    101
        |    0     0     0    11    11    24   .02           |     108      72
emr  108|   -1     0     1   -11     9    -8   .06    9    9 |   -1256    -320     61    120
        |    0     0     1     8    12    12   .01           |     558     736
esa  150|    0     0     2   -11    -9    -9  -.02    9   10 |   -1208     975      5     77
        |    0     0     1     9    11     9   .02           |     564     832
gfz  121|    0     0    -1    20    -4   -24   .06   10   10 |     -48      12     10    112
        |    1     0     0    16     9     9   .01           |     120     189
grg  123|    2    -1     0     0     0    14   .01   11   10 |     -34      83      7    121
        |    0     0     1    13    16    17   .03           |      64     146
igr  n/a|    0     0    -1     4    12   -12   .03    4    4 |   -1327     -55     10     75
        |    0     0     0     6    11     9   .01           |     713     581
jgx  n/a|    0     0    -5    28    26   -44  -.03   11   11 |     -29      84     36    103
        |    0     0     1    10     9    31   .02           |      69     143
jpl  n/a|    0     0     8    11     2     1   .17   26   26 |   -2048    -194     83    160
        |    1     1     0    16    23    11   .02           |     900     624
mit  357|    0     0     0   -20   -11    21  -.01    8    8 |   -1349     -11     48     71
        |    0     0     0    34    34    49   .01           |     626     290
ngs  284|    1     0     0     8     6   -24  -.07   11   10 |    -739     154    522    704
        |    1     1     2    20    17    23   .04           |     106      68
sio  335|    0     0    -1   -14   -23    18  -.03    9    8 |     ---     ---    ---    ---
        |    0     0     1    24    18    40   .02           |     ---     ---


Table 1.2309.b   GPS week : 2309   MJD: 60407.000-60413.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2309.0   GPS week: 2309   Day: 0   MJD: 60407.000                            

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  825|   -1     0     2    20    31    37  -.00    7    7 |    -808     218      8    107
emr  110|    0     1     2   -10    25   -17   .05    9    9 |    -311   -1452     69    123
esa  150|    0    -1     1    -1     3    -7   .01   10   10 |    -703     141      6     76
gfz  115|    0     0    -2    32     6   -17   .07   10   10 |     -95     225     10    101
grg  120|    2    -1    -1     8    32    44  -.05   11    9 |      -7     159      7    112
igr  n/a|    0     0    -1     4    27   -17   .04    4    4 |    -108    -399     11     69
jgx  n/a|    0     0    -2    20    33     9  -.03    9    9 |      12     116     40    102
jpl  n/a|    2     0     7    26    32   -13   .17   26   26 |    -610    -368     86    143
mit  357|    0     2    -1   -51   -72   -10  -.00    8    7 |    -202    -208     48     65
ngs  285|    1     0     1     0    19    -7  -.05   12   11 |    -809     219    545    777
sio  342|    0     0    -1    -3   -62   -21  -.03    9    8 |     ---     ---    ---    ---

Table 2.2309.1   GPS week: 2309   Day: 1   MJD: 60408.000                            

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  819|    0     0     0    -1    13     2  -.02    8    7 |    -854     254      7    104
emr  104|    0     0     2     0     8   -18   .06    9    9 |    -719   -1024     66    115
esa  150|    0     0     3    -5     0   -14  -.05   10   10 |    -448      78      5     72
gfz  122|   -1    -1     0     7    -4   -20   .06    9    9 |     121    -164     10    111
grg  123|    3    -1    -1    14     4    13   .01   11    9 |      72      27      8    144
igr  n/a|    0     0     0     8    16   -18   .02    4    4 |    -749   -1058     10     68
jgx  n/a|    0     0    -5    32    16   -55  -.02   10   10 |      67      45     38    109
jpl  n/a|    0     0     8    24   -10     7   .15   26   26 |   -1199   -1158     83    157
mit  357|    0     1     0   -63   -10   102  -.01    9    8 |   -1023    -510     44     74
ngs  286|    2     0     1   -11     9   -20  -.06   11    9 |    -846     243    444    602
sio  336|    0     1    -2    23   -25   -22  -.00    8    8 |     ---     ---    ---    ---

Table 2.2309.2   GPS week: 2309   Day: 2   MJD: 60409.000                            

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  819|    0     0     2    -1    17    36  -.01    8    7 |    -765     138      8    113
emr  107|   -2     0     0   -20    -9    10   .05   10   10 |   -1442     195     61    122
esa  150|    0     0     3    -2   -21   -15  -.01    9    9 |   -1545    1589      5    102
gfz  123|    0     0    -1    40   -13   -23   .05    9    9 |     110    -318     10    108
grg  127|    2    -1     0    16    -6     3  -.00   10   10 |     -39    -129      7    119
igr  n/a|    0     0    -1     5    -2    -8   .02    4    4 |   -1849      66     12     94
jgx  n/a|    0     0    -6    21    13   -79  -.01   13   13 |      -6    -149     40    112
jpl  n/a|    0     1     8    22   -19     6   .16   26   26 |   -2589     185     80    154
mit  357|    0     0    -2   -29    25     4  -.02    8    8 |   -1881     131     50     79
ngs  291|    4    -2     4     0    29   -62  -.11   12   10 |    -763     158    550    725
sio  338|    0     0    -2    -6   -25    38  -.01    8    6 |     ---     ---    ---    ---

Table 2.2309.3   GPS week: 2309   Day: 3   MJD: 60410.000                            

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  823|   -1     0     1    27     5    62  -.04    9    8 |    -796     185      8     97
emr  111|   -1     1     1   -23    26   -11   .06    9    9 |   -1578     336     54    124
esa  150|    0     0     2   -30    -1     7  -.02    9   11 |    -720      92      5     75
gfz  123|    1     0    -1     3     7   -20   .05   10   10 |     -99      49     11    114
grg  126|    2    -1     2   -17     8    25   .01   11   11 |    -140     204      8    106
igr  n/a|    0     0    -1     0    15     4   .04    4    4 |   -1593     169     10     75
jgx  n/a|    0     0    -6    23    31   -68  -.03   14   14 |    -155     225     36     99
jpl  n/a|    0     3     8   -18    23    21   .20   26   26 |   -2165     209     84    151
mit  357|    0     0     0    18   -35   -24  -.02    7    7 |   -1643     270     50     75
ngs  281|    2     0     0    -3    10   -27  -.07   11   10 |    -800     190    561    696
sio  336|    0     0    -3    -3   -14    19  -.01    9    8 |     ---     ---    ---    ---

Table 2.2309.4   GPS week: 2309   Day: 4   MJD: 60411.000                            

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  825|    0     0     3     3    22    27  -.02    9    8 |    -527     112      8    103
emr  111|   -1     0     2    -7     4   -19   .05    9    9 |   -1346    -734     71    131
esa  150|    0     0     0   -14   -16     0   .01   10    9 |   -1881    1705      6     63
gfz  123|    1     0    -2    37    -5   -44   .08   11   10 |    -152     153     12    115
grg  126|    2    -1     2    -2    -4     9   .03   11   10 |     -13     161      8    105
igr  n/a|    0     0     0    16    11   -13   .04    4    4 |   -1576    -261     11     79
jgx  n/a|    0     0    -6    49    34   -58  -.01   13   13 |     -22     184     35     97
jpl  n/a|    0     1     9    15    18    -2   .15   27   27 |   -1951    -901     87    176
mit  357|    0     0     0   -35     8    39  -.01    8    8 |   -1623    -166     46     73
ngs  280|    0     0    -2    49   -25   -22  -.15   11    9 |    -530     115    524    722
sio  334|    0     0    -2   -28   -17    -3  -.03    9    8 |     ---     ---    ---    ---

Table 2.2309.5   GPS week: 2309   Day: 5   MJD: 60412.000                            

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  825|   -1     0     2     7     1    18  -.06    9    8 |    -743      48      7     94
emr  107|    0     0     0    -5     9   -14   .05    9    9 |   -1976     351     61    116
esa  150|    0     0     3    -9    -4   -14  -.00    9   10 |   -1562    1339      6     77
gfz  122|    0    -1    -1    22     0   -25   .05    9    9 |    -183      35     12    118
grg  123|    2     0     1     0   -12    18   .03   10    9 |     -70     -84      8    132
igr  n/a|    0     0    -2     1    22   -24   .00    4    4 |   -2229     734     11     67
jgx  n/a|    0     0    -6    34    35   -40  -.05   11   11 |     -65     -52     32     99
jpl  n/a|    0    -1     7     0     1    -1   .18   26   26 |   -3275     264     83    172
mit  357|    0     0     0   -13    -9    64  -.01    9    9 |   -1994     262     47     64
ngs  283|    0     0     0     4     2   -39  -.05   11    9 |    -750      53    535    734
sio  332|    0     0     0   -34   -18    22  -.05   10    9 |     ---     ---    ---    ---

Table 2.2309.6   GPS week: 2309   Day: 6   MJD: 60413.000                            

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  827|   -1     0     2     7     3   -11  -.05    8    8 |    -676      97      7     95
emr  110|   -1     0     0   -14     3     7   .08    9    9 |   -1421      83     49    111
esa  150|    0    -1     0   -14   -24   -18  -.05    9    9 |   -1598    1887      6     74
gfz  123|    0    -1    -2     2   -18   -19   .08   10   10 |     -41     106     11    117
grg  121|    1     0     2   -12   -15    -9   .05   10    9 |     -43     245      8    132
igr  n/a|    0     0     0    -2    -3    -8   .01    4    4 |   -1191     361     10     73
jgx  n/a|    1     0    -2    18    19   -17  -.06   10   10 |     -34     219     34    107
jpl  n/a|   -1     1     8     9   -30    -8   .18   25   25 |   -2552     407     82    170
mit  357|    0     0     0    30    17   -27  -.00    8    7 |   -1079     138     51     72
ngs  283|    1     0     0    23    -1    11  -.04   12   10 |    -681     101    498    673
sio  328|    0     0     0   -48    -5    93  -.04    9    8 |     ---     ---    ---    ---

       
       
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 3.2309.0   GPS week: 2309   Day: 0   MJD: 60407.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
  X1E |    6   11    9   19    8    3  ---   10    8   13  ---    4 |    27   28   27   29   24   36  ---   28   24   28  ---    25
   2E |    9    8   10   13    8    4    9   12   10   13   10    3 |    30   28   31   29   33   29   33   30   33   30   32    29
   3  |    6    9   10    9    8    3    7    9    9    9    8    3 |    24   27   27   25   26   25   24   28   23   25   23    24
   4  |    7   11    6    7    8    3    6   50    7   10    9    2 |    54   55   57   57   58   56   55   62   60   59   60    57
   5  |    7    8    6   10    9    3   10   11    8   11    8    3 |    26   23   24   26   23   24   24   22   24   26   22    23
   6E |    7   10    8   19    8    4    8    8   11   15    9    3 |    28   28   29   30   32   28   25   28   32   34   30    28
   7  |    3    8    7    8   12    4    8   11   10   12    9    3 |    30   30   31   34   31   30   33   31   30   31   27    30
   8  |   11    8    9   10    7    3    7    7    7    9    7    3 |    20   24   25   24   21   22   22   24   22   22   22    21
   9  |    5    8    6    7    6    2    9    8    7    9    8    2 |    25   26   25   23   23   25   28   28   23   26   25    24
  10  |   12    6   11   11   15    4    6   11    6    7   10    3 |    31   28   28   27   28   26   27   27   27   28   30    27
  11E |    8    8   18   10    9    3   15   57    7   17    9    4 |    34   35   40   38   36   35   32   38   35   36   34    34
  12  |    7   10    9   10    9    2   12   11    8   12    7    3 |    48   45   42   49   48   46   48   46   47   48   46    46
  13  |    9   10    7    9    8    4    8   10    8   15    9    3 |    17   24   18   16   18   19   20   24   14   25   18    17
  14  |    7    8   14    9    9    5    6   54   10   11    7    3 |    51   52   56   55   55   52   51   70   58   52   54    53
  15  |    7    8    7    9    8    3    7    8    8    8   11    3 |    50   50   51   52   46   50   54   51   45   50   44    48
  16  |    8   12    6    8   10    5   17   12    9   10   10    3 |    26   29   30   28   25   28   29   30   28   27   24    26
  17  |    4    9    5    7    6    3    6    7    4   10    8    2 |    22   25   21   25   22   23   22   27   23   23   24    22
  18E |    6    8   19   16   14    5    8   57    8   13    9    4 |    27   26   31   28   25   26   27   31   29   26   28    26
  19  |    5    9    5   10    7    3   11    7    5   13    6    2 |    31   33   32   38   32   32   33   34   32   33   30    32
  20  |    8    7    6   10   23    4    9    9   10   11    9    3 |    30   32   29   28   31   29   30   32   27   32   29    28
  21E |   10    7    9   11   11    5   10   10    7   14    9    3 |    36   34   34   35   36   34   31   37   37   34   34    33
  22  |    6    8    6    8   10    3    7   11    9    7    7    2 |    36   40   38   36   37   37   38   39   44   37   39    38
  23  |    7    8   10   11   11    3    9   58    5   11   10    3 |    48   48   48   47   49   46   45   68   46   47   49    47
  24  |    6   11    8   11    9    4    8   11    6   19    9    3 |    28   27   28   30   27   28   27   29   27   31   31    27
  25  |    5    7   12    7    8    3    6    9   10   14    7    3 |    23   26   25   23   24   22   23   26   22   21   27    22
  26  |    7    9    9    9    9    4    6   11    9    9    7    3 |    25   27   27   27   24   25   25   28   24   27   23    24
  27  |    6    6   10    6    7    2    7    7   10   12    8    3 |    23   26   28   25   22   25   25   27   27   24   24    24
  28  |    6    8   17    7   15    4    9   62    7   11    9    3 |    51   56   56   56   55   54   54   62   60   56   57    55
  29  |    7    9    4    6    7    4   15    9    6   10    6    3 |    33   32   31   32   32   31   33   33   36   31   31    32
  30  |    5   12    9    9   14    4    7   14    8   11    7    3 |    23   25   26   27   25   25   24   27   26   24   24    24
  31  |    9    8    6    7   22    4    9   11    8   14   12    3 |    35   31   30   35   39   33   31   34   34   36   31    31
  32  |    7    7    8    9    8    4    8   11    5   10   10    2 |    28   29   27   28   25   28   30   32   24   26   26    26
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    7    9   10   10   11    4    9   26    8   12    9      |T   31   32   32   33   32   32   32   35   32   32   32    31
 WRMS |    7    9   10   10    9    4    9   26    7   11    8      |NE  31   32   32   33   32   32   32   35   32   33   32    31
 MEDI |    7    8    8    9    9    4    8   11    8   11    9      |MD  28   28   29   29   28   28   30   30   28   30   30    27

Table 3.2309.1   GPS week: 2309   Day: 1   MJD: 60408.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
  X1E |    8   10    8   14    8    6  ---    8    7   16  ---    4 |    36   32   32   53   37   30  ---   32   35   34  ---    36
   2E |    8    8   11   12    9    4   12    9   12   16   10    4 |    33   32   36   33   34   34   35   29   37   40   37    34
   3M |    7   10    9    6    9    4    8    7    7   11   10    3 |    25   27   27   25   25   24   26   27   22   26   23    24
   4  |    6   12    5    9    7    4    8   49    7    9    7    2 |    47   49   49   50   51   49   49   51   54   48   52    49
   5  |    8    9    6   12    6    3   10    9    5    6    7    2 |    21   19   17   23   20   20   21   19   23   21   21    19
   6E |    8   11    8    8   11    3    9   10   13   13   10    3 |    36   36   36   38   35   36   38   33   41   38   40    36
   7M |    7    8    7    7   10    4   10    8   11   10   10    3 |    33   34   31   35   36   33   33   35   36   32   33    33
   8M |   10    7   10    7    9    5    8    7   10   10    8    3 |    23   23   23   20   20   21   24   23   26   23   23    21
   9  |    5    9    7   14    6    3    7   10    5    9    6    2 |    19   25   20   19   16   19   20   25   20   19   20    19
  10  |    9    6   11    9    9    4    6   12    8    8    6    3 |    23   24   23   21   23   21   21   24   23   22   21    21
  11E |   11   11   17   12    9    5   13   55   10   13   13    4 |    21   22   28   28   24   23   24   27   24   25   26    23
  12M |    6    9    6   11   12    4   16   10   10   11    6    3 |    46   46   44   46   48   46   47   47   49   48   46    46
  13  |   11   10    6   10    6    4    8    9    9    9    9    3 |    18   24   16   18   14   17   17   26   21   17   18    17
  14  |    7    8   13    9   12    4    9   54    8   10    7    3 |    36   40   40   39   41   38   39   50   43   39   40    39
  15  |    6    9    6   11    6    3   12    7   11    6   11    3 |    23   26   24   29   23   25   27   26   26   28   22    24
  16  |    6   12    7    7   10    4   17   10    9    9    5    3 |    27   28   28   29   25   28   28   28   30   28   25    27
  17  |    5    8    4    5    7    3    7    8    5   10    7    2 |    21   24   19   22   21   22   22   26   22   25   21    21
  18E |    7   10   18   12   12    6    7   56    8   13    7    4 |    19   22   25   21   23   19   21   28   23   20   20    20
  19  |    6   10    5    9    8    3   12    7    5   13    6    3 |    32   32   33   35   31   31   32   34   33   34   29    31
  20  |    7    8    6   11    8    5   11   11    7    6   10    3 |    26   25   24   25   23   24   24   25   25   23   24    23
  21E |   11    8   11   12   26    4   14    8   10   15   10    4 |    34   33   37   33   41   34   34   33   36   40   34    34
  22M |    6   10    6    9   10    3    8   10    7    8    4    2 |    37   41   40   37   37   38   40   40   44   41   39    39
  23  |    6    9   10   13    8    3    8   60    9   10    5    3 |    36   37   38   41   39   36   36   46   41   35   36    37
  24  |   12   13    9    8   10    4    9   11    7   10    7    3 |    20   21   21   21   21   20   20   21   19   20   20    18
  25M |    6    8   11    9    9    3    8   11    9    9    7    3 |    23   27   27   24   25   24   22   28   26   24   25    24
  26  |    5    7    9    7   10    2    7   12    9   12    7    3 |    28   28   30   30   30   27   27   31   32   30   27    28
  27  |    6    6   10    6    8    1    6    7    7    8    6    2 |    25   26   28   26   23   25   26   25   29   26   26    25
  28  |    9    9   17    8   19    4   11   60    9   14   13    4 |    31   35   38   35   41   35   35   44   37   41   35    34
  29  |    7    9    6    6    9    4   15   13    8   10    7    3 |    33   32   30   33   32   32   31   32   37   34   32    32
  30  |    6   13   10    7   12    4    6   13    9   12    9    3 |    19   23   23   21   22   21   20   23   26   21   25    21
  31  |    9    7    5    7   19    3   10   12    8   11    7    3 |    32   32   30   33   40   32   33   35   37   37   32    32
  32  |    5    8    8   10    5    4    8   12    7    8    9    2 |    20   26   22   22   22   22   24   28   22   24   21    21
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    8    9   10    9   11    4   10   26    9   11    8      |T   28   29   29   30   29   28   28   31   31   30   28    28
 WRMS |    7    9   10    9    9    4   10   26    8    9    8      |NE  26   28   27   28   28   27   27   30   29   28   27    26
 MEDI |    7    9    8    9    9    4    9   10    8   10    7      |MD  26   27   28   29   25   25   27   28   29   28   26    25

Table 3.2309.2   GPS week: 2309   Day: 2   MJD: 60409.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
  X1E |    9   12    9   15    9    6  ---    9    8   12  ---    4 |    49   49   48   72   52   42  ---   48   48   50  ---    51
   2E |    9    9   10    8   11    5   14   12   10   16   10    3 |    29   26   29   29   32   29   30   30   30   28   28    28
   3  |    7   10    9    8    7    4   13    8    9    8    6    3 |   107  105  105  106  103  105  107  105  107  105  106   105
   4  |    7   14    6    6    7    4    9   50    7   10    7    3 |    39   40   39   38   40   38   38   45   38   39   42    38
   5  |    7    8    5   13    6    3   12   10    6   11    7    3 |    22   20   19   25   20   21   22   22   23   26   24    21
   6E |   12   13   10    8   10    6   14    9   15   14   10    4 |    28   27   30   32   32   29   31   31   38   31   33    30
   7  |    7    8    7    9   13    4   14   10    9   17   10    3 |    40   38   40   40   40   39   38   40   39   35   41    38
   8  |    7    6    9    7    8    3   10    8    7   11    5    2 |    20   20   22   19   18   19   22   22   20   21   19    18
   9  |    6   10    8    7    6    4   12    9    7    7    8    2 |    20   24   24   20   20   21   23   27   21   19   22    20
  10  |    9    7   10    8   11    4   11   12   10    7    6    3 |    25   22   22   20   23   21   22   23   22   21   22    21
  11E |   13   11   16   11    9    6   16   57   10   16    9    4 |    21   23   29   29   26   24   26   29   26   24   26    23
  12  |    8    8    8    8   10    5   16   10    8    9    6    3 |    34   31   31   35   34   32   32   35   33   35   34    33
  13M |    7    9    6   10    7    4   11   11    7   11    7    3 |    21   26   19   21   19   21   21   28   19   24   22    20
  14  |    8   11   13    8   10    4   12   53    8   13    7    3 |    34   35   40   38   41   36   36   51   37   31   38    36
  15M |    6    7    5   10    6    4   18    8    8   10   11    3 |    36   36   37   39   35   37   42   39   36   40   38    36
  16  |    6   14    6    7   10    5   17   12   10   12    4    3 |    21   25   23   20   20   22   21   21   21   21   22    20
  17  |    6   10    7    7    7    4   13    9    8   13    9    3 |    20   23   20   24   20   21   23   27   20   23   21    21
  18E |    9    9   19   11   13    6   11   53    7   15    7    4 |    20   22   25   22   22   21   23   26   21   23   22    20
  19  |    7   11    4   10    7    4   14   10    5   14    5    3 |    33   30   31   37   31   31   32   36   30   30   31    31
  20  |    7    7    6    9    8    5   14   11    6   14    7    3 |    33   33   35   33   32   33   35   35   34   42   34    33
  21E |   13    8   10    9   10    4   16   10   10   14   10    4 |    47   45   46   45   51   46   46   46   46   50   44    45
  22  |    7   10    5   10   10    3   13   12    8   10    6    3 |    29   32   30   29   31   30   28   33   33   27   34    30
  23M |    8    8   10   11   13    4   12   57    7   11    7    3 |    37   35   37   34   38   35   37   50   37   37   38    36
  24  |    8   11    9    8   12    4   12   13    6    8    6    3 |    24   23   25   24   23   23   28   27   21   25   22    22
  25  |    6    8   12   10   12    4   12   11    7   10    5    3 |    20   24   24   19   22   20   19   24   18   19   21    19
  26  |    7    8    9   12    9    3   12   12    9   12    5    3 |    22   26   26   25   24   23   24   25   22   24   24    23
  27  |    7    8    8    6    7    2    9    8    8    8    5    2 |    17   21   21   18   17   18   21   22   19   19   20    18
  28  |    8   12   15    9   19    5   13   60    7   11   14    4 |    34   37   38   37   38   35   36   44   36   34   41    35
  29M |    8    8    6    8   12    2   16   11    6   11    6    3 |    26   28   27   28   29   27   27   29   26   27   26    26
  30  |    9   12   10   10   12    3   10   14    7   14    6    3 |    21   21   23   24   23   21   21   24   24   22   22    20
  31  |    8    9    6    9   19    3   13   13    7   10    7    3 |    29   28   25   26   32   26   27   30   27   28   28    26
  32  |    6    9    8   11    7    3   11   13    8    8    8    3 |    21   29   22   20   21   22   23   29   17   20   21    20
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    8   10    9    9   10    4   13   26    8   12    8      |T   30   31   31   32   31   30   31   34   30   31   31    30
 WRMS |    7   10    9    9   10    4   13   26    8   10    6      |NE  25   27   27   26   26   25   27   30   25   26   27    25
 MEDI |    7    9    8    9   10    4   13   11    8   11    7      |MD  26   27   27   28   29   26   27   29   26   27   26    26

Table 3.2309.3   GPS week: 2309   Day: 3   MJD: 60410.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
  X1E |    9   11    8   11   13    6  ---    9    8   14  ---    4 |    44   54   54   62   45   47  ---   54   43   57  ---    43
   2E |   12    9   10   11   15    5   14   12   10    9   16    4 |    41   38   39   36   39   40   43   38   44   43   43    40
   3  |    6    9    9    9   10    5   12    8    7    8   10    3 |   222  224  223  222  225  225  225  224  226  224  222   224
   4  |    7   15    5    8    8    4   10   49    6    9    8    3 |    19   19   18   19   20   17   24   31   19   20   19    18
   5  |    5    8    7   10   10    2   13   12    9   11   10    3 |    26   25   24   28   27   26   31   24   26   22   26    25
   6E |   11   11    8   11   10    4   16    8    6    9    5    3 |    27   25   27   29   27   26   30   25   29   25   26    26
   7  |   11    9    9   13   16    5   18   10    8   16   10    4 |    65   66   66   68   62   65   66   66   67   63   65    65
   8  |    9   11    8    8    9    3   10    9    6   10    6    3 |    27   29   28   24   25   26   27   30   29   23   26    26
   9  |    5    8    7    7    6    3   11    9    5   11    7    2 |    24   26   24   22   23   23   25   29   24   21   23    22
  10  |   10    6   10    7   11    4   11   10    9    7    8    3 |    23   25   28   24   27   23   25   28   25   23   25    24
  11E |   12   10   15   10    9    5   15   55    7   14   11    4 |    21   21   27   27   24   23   24   27   23   20   22    22
  12  |   10    9    8   12   11    4   19   10    8   10    7    3 |    26   24   25   29   25   25   25   29   29   25   26    25
  13  |   11    9    7    9    8    4   11   11    8    8    9    3 |    23   27   21   21   23   22   22   29   23   24   24    22
  14  |    7    9   12    8   10    5   14   54    9   13    8    3 |    33   36   41   39   39   37   37   58   36   34   36    36
  15  |    7    7    7    9    6    4   16    9    8    9   12    3 |    37   36   37   38   34   37   42   39   38   36   35    36
  16  |    8   11    6    9   10    6   20   10    8   13    6    3 |    18   20   21   22   16   19   19   20   21   19   20    18
  17  |    7    9    5    8    9    4   13    7    7   10    8    3 |    21   24   18   24   20   20   23   27   24   21   21    21
  18E |   10   10   21   13   11    6   11   54    7   13   10    4 |    18   22   25   21   21   19   23   27   21   19   23    19
  19  |    7    9    5   10    9    5   16    8    6   10    9    3 |    30   29   28   31   26   28   31   32   34   27   32    29
  20  |    6    8    7   10    8    5   14   11    7   13   12    3 |    21   21   22   20   22   22   22   24   20   26   24    20
  21E |   12    7    9   11   13    5   16   10    9   12   14    4 |    46   46   44   43   45   45   50   45   47   46   49    45
  22  |    8    9    5    7   12    4   13    8    8   12    5    3 |    33   37   36   35   36   34   36   38   40   34   39    36
  23  |    8    8   12   10   10    5   12   58    7   14   11    3 |    47   49   50   48   52   47   48   69   49   48   52    48
  24  |   12    8    9    7   12    3   13   13    5   11    8    3 |    25   23   24   23   21   24   26   27   24   23   22    22
  25  |   10    8   11   16    9    4   16   12    6    8    9    3 |    19   23   24   21   20   21   22   23   22   20   22    19
  26  |    9    9    9   15   11    4   11   13    7   15    7    3 |    19   19   23   24   18   19   20   21   19   21   18    18
  27  |    6    7    8    7    9    3   10    9    7   10    4    2 |    17   22   21   15   17   18   19   24   20   19   18    18
  28  |    8   11   14    7   18    4   15   61    7   12   14    4 |    18   20   27   23   23   19   21   38   25   14   29    21
  29  |   10    8    6    6   11    4   17   12    5   11    8    3 |    29   33   31   31   30   30   31   34   34   30   33    31
  30  |    7   10    9    8   15    4   13   12    6   14    8    3 |    23   24   25   26   27   24   24   24   26   20   23    23
  31  |   11    9    6   13   18    3   15   12    7   12    7    3 |    23   21   20   23   22   20   24   25   21   25   21    20
  32  |    7    8    9   11    7    3   13   11    7    6   10    3 |    21   27   24   24   21   22   26   30   18   23   20    21
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    9    9    9   10   11    4   14   26    7   11    9      |T   33   35   35   35   34   34   35   39   35   34   34    33
 WRMS |    8    9   11   10   11    4   14   26    7   10    8      |NE  22   23   24   24   23   22   24   28   23   22   23    22
 MEDI |    8    9    8    9   10    4   13   11    7   11    8      |MD  24   25   25   24   25   24   25   29   25   23   25    23

Table 3.2309.4   GPS week: 2309   Day: 4   MJD: 60411.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
  X1E |   19  ---  ---  156   35  165  ---  ---   15  ---  ---   16 |    68  ---  ---  127   71  103  ---  ---   70  ---  ---    68
   2E |   12    9   11   10   13    5   14   11   10   11   17    4 |    48   46   49   49   45   48   49   46   50   47   57    48
   3  |    7    8    9   11   12    3   12    8    6   11    7    3 |   330  331  331  332  329  330  330  331  331  330  330   330
   4  |    9   14    6   10    9    4    8   50    8    7    7    3 |    35   36   36   35   37   36   37   44   38   35   39    35
   5  |    9   11    7   11    8    2   12   12    6    9    8    3 |    28   30   30   32   30   30   32   29   32   32   30    30
   6E |   10   11    9   10   14    3   12   10    8   13    7    3 |    26   25   27   28   27   25   26   24   26   24   28    25
   7  |    9    8    7   14   15    6   13   10    8   15   10    4 |    74   73   75   78   75   75   74   74   69   73   71    73
   8  |    7    9    9    8    8    4    9    9    8   10    7    3 |    31   34   33   33   32   31   34   33   29   31   34    31
   9  |    7    9    7    8    7    4    9    8    5   10    8    2 |    22   23   22   20   19   21   23   26   20   21   21    20
  10  |    6    7    9    8   11    4    8   11   11    7    7    3 |    20   22   20   17   19   19   20   21   19   18   20    18
  11E |   13   10   17   12   10    4   16   57    9   14   11    4 |    26   27   33   31   28   27   28   32   29   25   26    26
  12  |   10   10   10   12   11    4   16   10    7    6    6    3 |    29   29   26   34   33   29   31   30   31   30   29    29
  13  |    9    9    5   13    7    4   11   11   10   10    7    3 |    46   49   46   43   46   46   47   51   47   45   43    45
  14  |    9   10   15    7   11    4   12   55    7   11    8    3 |    39   40   45   41   42   39   41   53   38   40   39    39
  15  |    8    7    7   13    7    4   15   10   10   11    9    3 |    50   53   53   51   50   52   54   52   50   52   50    50
  16  |    7   14    7    9   10    4   18   13    9   13    6    3 |    22   23   26   26   23   24   27   24   24   24   22    22
  17  |    8   10    6   10   10    4   13   10   10   11    6    3 |    18   21   17   22   19   18   18   23   17   19   18    17
  18E |    8    9   20    9   11    6   10   57    7   11    7    4 |    18   21   26   19   21   20   23   28   20   22   21    19
  19  |    7    9    5   10    9    3   15   10    7   16    7    3 |    28   28   29   32   29   29   28   31   28   28   31    28
  20  |    8    9    6   11    9    4   12   11    7   10   13    3 |    34   35   36   35   35   34   37   35   36   35   37    35
  21  |   16    8   10   11   15    5   16   11   11   10   14    4 |    85   86   88   87   86   84   86   85   86   88   84    86
  22  |    8    9    6   10   11    4   13   10    6   11    6    3 |    30   30   30   30   29   30   30   30   30   31   31    29
  23  |    7    8   14   10    9    4   11   58   10    9    9    3 |    84   83   86   84   87   85   84   93   85   85   85    84
  24  |   11    8    9    9   11    3   14   12    5   11   10    3 |    28   26   27   26   25   26   29   29   24   25   26    25
  25  |    9    9   12   12    9    3   14   11    6    5    8    3 |    20   23   22   19   20   18   20   24   19   17   23    18
  26  |    8    8    9   14   10    2   10   15    7   16    6    3 |    22   22   25   25   22   22   21   25   23   24   23    21
  27  |    5    8    8    9    9    3    8    8    7    9    5    2 |    19   21   21   21   18   19   21   22   19   17   21    18
  28  |    7   11   14    8   13    5   15   60   11    9   12    4 |    34   35   37   34   37   34   35   47   39   33   40    34
  29  |    6    8    5    7   12    3   17   11    5   10    6    3 |    27   27   26   28   28   28   30   29   30   30   29    27
  30  |   10   13   10   17   17    5   12   12    6   10    9    4 |    22   20   24   28   26   24   23   23   23   22   24    21
  31  |    8    6    7   10   17    3   12   13    8    9   10    3 |    26   24   22   25   25   23   27   27   26   23   29    23
  32  |    6    9    8    8    6    4   12   13   10    6    8    3 |    17   25   22   15   16   19   22   25   17   15   22    17
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    9    9   10   11   11    4   13   27    8   11    9      |T   43   44   44   47   44   45   44   46   44   43   44    43
 WRMS |    8    9    9   10   10    4   13   27    8    9    8      |NE  25   26   27   27   26   26   27   30   26   25   27    25
 MEDI |    8    9    9   10   10    4   12   11    8   10    8      |MD  28   28   29   31   29   29   30   30   29   30   29    28

Table 3.2309.5   GPS week: 2309   Day: 5   MJD: 60412.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   2  |   12    7    8    7   14    4   11    9   12   12   15    4 |    40   41   43   41   45   41   45   40   43   39   43    41
   3  |    7    8    9    8   10    2    8    8    6    6    9    3 |   445  446  448  449  446  447  445  446  445  447  447   446
   4  |    8   15    5    8    9    3    8   50    9    7    9    3 |    41   40   43   43   44   41   43   45   43   42   45    42
   5  |    8    9    7    8    9    3   10   14    7    9   10    3 |    23   20   19   25   20   22   21   24   22   24   22    21
   6E |   11   10    8   11   10    2   13   10    7   10    6    3 |    40   37   39   42   39   39   38   39   38   39   39    38
   7  |    7    7    7   14   13    5   11    9    9   13   13    3 |    28   26   26   33   31   28   27   28   30   27   30    27
   8  |    8    8    7    6    6    2    6    7    9    8    7    2 |    34   37   37   34   34   34   37   38   32   38   35    34
   9  |    5    7    7    7    6    3    8    9    6    8    6    2 |    23   27   27   25   23   24   24   28   22   24   23    23
  10  |    8    6   10    9   11    4    8   11   12   11   11    3 |    22   25   24   21   24   22   22   25   19   24   21    21
  11E |   12    9   18    8    7    3   13   57    8   15   10    4 |    23   24   29   29   27   24   23   31   26   22   24    24
  12  |   10    8    9   10   11    3   15   11    7    7    9    3 |    41   38   40   43   43   40   41   42   42   39   40    40
  13  |    9    7    6    9    7    5    9   14   10    9   11    3 |    57   58   56   56   59   57   56   61   57   55   56    57
  14  |    7    9   13    7    9    4   10   52   10   12   10    3 |    34   34   37   39   38   35   35   44   36   33   35    35
  15  |    9    8    7    7    6    4   12   13    9    5   14    3 |    33   33   35   35   33   35   34   37   32   34   34    33
  16  |    8   12    6    6   10    4   18   11    9   11    9    3 |    20   20   21   22   20   20   25   19   20   22   19    19
  17  |    7    9    6    9    8    4   10    9    9    7   10    3 |    18   22   17   22   18   19   17   24   16   18   17    17
  18E |    8    8   18    7   11    5   11   53    9   14   10    4 |    21   22   24   22   24   21   23   31   22   23   23    21
  19  |    6    7    5    9    8    3   14    9    8    8    9    3 |    22   21   22   27   22   22   19   24   18   22   19    20
  20  |    9    6    5    9    8    3   11   10    7   10   11    3 |    23   21   23   25   20   22   20   23   23   24   27    22
  21  |   13    6    8    9   20    5   13    9   12   13   14    4 |    28   30   29   30   35   29   31   29   31   29   30    29
  22  |    8    9    5    9    9    4   10   10    8   11    6    3 |    21   24   22   23   23   22   21   24   23   24   21    21
  23  |    7    7   12   10   10    4    9   54   11   14   11    3 |   114  115  116  113  113  114  115  116  116  111  114   114
  24  |   12   10    9    6   11    4   10   12    7   13   10    3 |    22   21   23   19   20   21   20   24   20   20   20    19
  25  |   10   10   11   10    8    2   11   11    6    7    9    3 |    22   24   25   21   22   20   20   25   21   22   21    20
  26  |    8    8    9   11    8    2    9   14    8   15   10    3 |    30   30   31   29   30   29   29   30   26   35   24    28
  27  |    6    8    7    3    8    2    7    8    7   11    7    2 |    19   21   22   19   18   19   22   23   18   22   21    19
  28  |    9   10   14    8   11    4   11   60    9   11   12    3 |    40   42   44   42   43   41   43   50   42   43   40    41
  29  |    8    9    5    7   10    3   16   14    7   12    7    3 |    23   19   17   23   23   20   21   24   20   21   23    20
  30  |    7   11    9   11   14    5    7   11    9   13    9    3 |    21   20   23   25   24   22   20   23   22   20   21    20
  31  |    9    7    7   12   13    3   11   12    7   14   12    3 |    38   38   36   39   41   38   36   40   36   43   35    37
  32  |    6   11    9   12    6    3    9   12   12    9   12    3 |    23   29   26   22   24   24   24   31   20   27   24    23
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    9    9    9    9   10    4   11   26    9   11   10      |T   44   45   45   46   46   44   45   48   44   45   44    44
 WRMS |    8    9   10    9    9    4   11   26    9    9    9      |NE  26   26   27   27   26   26   26   29   25   27   25    25
 MEDI |    8    8    8    9    9    3   10   11    9   11   10      |MD  23   27   27   29   27   24   25   30   26   27   24    24

Table 3.2309.6   GPS week: 2309   Day: 6   MJD: 60413.000                            

        Weighted Average                                                 Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  sio   IGS
------+-------------------------------------------------------------+--------------------------------------------------------------
   2  |   11    9    8    7   20    5   12   12   10    9   16    4 |    38   38   41   39   43   40   42   37   40   38   44    39
   3  |    6    8    9    9    8    3    7    7    7    7    9    2 |   549  548  547  549  549  548  546  548  549  547  549   548
   4  |    6   16    5   10    8    4    7   52   10    8    7    3 |    53   52   54   58   55   53   53   63   56   56   58    54
   5  |    7    9    7    9    8    3    9   11    6   10    8    3 |    30   28   28   32   29   30   29   31   31   26   28    28
   6E |   10   10    8   14   12    3   10   10    6   10    3    3 |    35   36   37   38   39   36   35   37   37   36   35    36
   7  |    7    7    7   10   11    4    9    8    9   10   12    3 |    54   54   53   58   55   55   54   55   59   54   57    55
   8  |    7    7    9    7    5    3    6    8    5   13    5    2 |    43   42   43   41   43   42   42   43   42   41   42    42
   9  |    4    8    7    5    6    3    6    9    4    6    7    2 |    22   27   24   23   24   23   21   30   23   24   23    22
  10  |    6    6   10    9    9    3    5   12    9    8    7    2 |    29   28   28   26   30   27   24   30   29   24   27    27
  11E |   11   11   15   10    9    3   13   54    8   14   11    4 |    25   27   35   34   32   29   28   37   29   28   28    28
  12  |    8    9    7   10    9    3   14   10    5   12    9    3 |    77   75   74   77   76   76   76   76   77   79   78    76
  13  |    8    8    8   10    7    4    6   14    8   11   11    3 |    68   67   65   64   68   67   66   68   65   65   66    66
  14  |    7   10   15   11    9    4    9   51    8   11   13    3 |    48   49   53   52   53   49   50   64   49   49   50    49
  15  |    6    9    9    8    6    5   13   14    8   11   13    3 |    57   58   59   58   53   57   59   61   53   53   54    56
  16  |    7   13    7    8    9    4   16   10    8   15    8    3 |    23   22   24   25   21   22   25   24   22   24   21    21
  17  |    6    8    6    9    6    3    7    9    8    8    6    2 |    22   27   21   26   21   23   21   26   22   22   21    22
  18E |    7   10   17    9    9    4    8   51    7   14    9    3 |    21   23   29   22   27   23   23   34   23   20   23    22
  19  |    7    8    6   10    6    3   11    8    7   12    7    3 |    29   27   28   33   27   28   26   31   28   24   25    27
  20  |    7    8    6   10   10    4   10   10    8   11   10    3 |    26   23   25   26   26   25   23   29   26   27   25    24
  21  |   15    7    7    9   16    4   11    9   10    9   14    4 |    48   50   51   50   51   49   50   50   50   50   50    49
  22  |    6   10    6    9    8    4    9    9    7    8    8    2 |    21   25   23   21   21   23   23   25   23   22   24    21
  23  |    7    9   12   10   10    4    9   56    9   10    8    3 |   147  147  148  147  147  148  146  154  149  147  148   147
  24  |   10   11    9    9   13    4    9   12    8   19   12    4 |    25   23   24   22   23   22   23   27   24   22   23    22
  25  |    8    8   11   17    8    3    8   10    5    7    8    3 |    23   25   25   24   24   21   22   24   23   22   22    21
  26  |    8   10    9    9    8    3    7   11    9   16    9    3 |    30   31   32   35   34   31   31   32   31   35   28    30
  27  |    6    8    8    7    6    2    5    8    6   15    7    2 |    18   20   21   15   17   17   17   21   17   19   18    17
  28  |    7   11   12    8   13    4   10   59    8   16    8    3 |    53   55   56   58   58   55   55   69   54   59   53    55
  29  |    8    8    5    8   11    3   16   13    4   10    7    3 |    26   25   25   26   25   24   24   31   26   23   26    24
  30  |    7   12    9   14   12    4    7   12    8   11   10    3 |    22   21   24   27   26   23   21   24   24   22   24    22
  31  |    8    7    6   17   15    3    8   10    6   14   10    3 |    39   39   36   43   45   38   40   40   41   43   38    39
  32  |    5    9    8    9    6    4    7   12    9    7    7    2 |    23   30   25   21   24   24   24   31   19   24   23    22
------+-------------------------------------------------------------+--------------------------------------------------------------
 RMS  |    8    9    9   10   10    4   10   25    8   12    9      |T   55   56   56   57   56   55   55   59   56   55   55    55
 WRMS |    8    9    9   10    9    4   10   25    7   10    8      |NE  30   31   31   32   32   30   30   35   31   31   30    30
 MEDI |    7    9    8    9    9    4    9   11    8   11    8      |MD  30   30   32   34   32   30   29   34   31   28   28    28



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 4.2309   GPS week: 2309   MJD: 60407.0-60413.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |U   10    10    22 |     0     0     0 |U   10     8    24 |
emr | emr 3030 |U   11    12    28 |     0     0     0 |    12    11    29 |
esa | esa 3030 |    13    17    32 |     0     0     0 |U   12    15    26 |
gfz | gfz 3039 |U    9    11    22 |     0     0     0 |     9     8    25 |
grg | grg 3039 |U   11    12    24 |     0     0     0 |    10     7    26 |
igr | igr 3039 |     9    11    20 |     0     0     0 |     9     9    23 |
igs | igs 3039 |     9    11    20 |     0     0     0 |     9     8    22 |
jgx | jgx 2976 |U   10    11    22 |     0     0     0 |     8     9    23 |
jpl | jpl 3030 |    12    13    34 |     0     0     0 |    15    12    35 |
mit | mit 3044 |U    9    10    21 |     0     0     0 |U    9     7    23 |



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

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

Table 5.2309.0   GPS week: 2309   Day: 0   MJD: 60407.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    13     9    23 |  ----  ----  ---- |     9     9    26 |
emr | emr 3072 |    12    10    33 |  ----  ----  ---- |    10     9    29 |
esa | esa 3072 |    18    16    34 |  ----  ----  ---- |    10    14    26 |
gfz | gfz 3072 |    12     9    23 |  ----  ----  ---- |     7     9    24 |
grg | grg 3072 |    13    10    23 |  ----  ----  ---- |     8     7    28 |
igr | igr 3072 |    13    10    22 |  ----  ----  ---- |     8     9    24 |
igs | igs 3072 |    13     9    22 |  ----  ----  ---- |     7     8    24 |
jgx | jgx 2976 |    14     9    24 |  ----  ----  ---- |     6    11    21 |
jpl | jpl 3072 |    15    15    40 |  ----  ----  ---- |    13    11    33 |
mit | mit 3072 |    13     8    22 |  ----  ----  ---- |     7     8    22 |

Table 5.2309.1   GPS week: 2309   Day: 1   MJD: 60408.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    13    10    24 |  ----  ----  ---- |     9     8    21 |
emr | emr 3067 |    15    13    37 |  ----  ----  ---- |    13     9    27 |
esa | esa 3072 |    16    16    35 |  ----  ----  ---- |    10    13    25 |
gfz | gfz 3072 |    14    12    26 |  ----  ----  ---- |     9     7    24 |
grg | grg 3072 |    14    13    29 |  ----  ----  ---- |     9     5    23 |
igr | igr 3072 |    13    11    24 |  ----  ----  ---- |     8     8    21 |
igs | igs 3072 |    13    11    24 |  ----  ----  ---- |     8     6    20 |
jgx | jgx 2976 |    14    12    28 |  ----  ----  ---- |     7     9    21 |
jpl | jpl 3072 |    15    10    40 |  ----  ----  ---- |    14    10    32 |
mit | mit 3072 |    12    12    22 |  ----  ----  ---- |     8     5    18 |

Table 5.2309.2   GPS week: 2309   Day: 2   MJD: 60409.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9     9    20 |  ----  ----  ---- |    11    11    26 |
emr | emr 3072 |    11    13    23 |  ----  ----  ---- |    12    12    28 |
esa | esa 3072 |    13    16    28 |  ----  ----  ---- |    12    16    28 |
gfz | gfz 3072 |     8     9    16 |  ----  ----  ---- |    10    10    31 |
grg | grg 3072 |    10     9    19 |  ----  ----  ---- |    10     7    28 |
igr | igr 3072 |     8     9    15 |  ----  ----  ---- |     9    10    27 |
igs | igs 3072 |     8     8    14 |  ----  ----  ---- |     9     9    25 |
jgx | jgx 2976 |     9     9    18 |  ----  ----  ---- |     8    11    24 |
jpl | jpl 3072 |    10    12    29 |  ----  ----  ---- |    15    13    34 |
mit | mit 3072 |     8     7    15 |  ----  ----  ---- |    10     9    27 |

Table 5.2309.3   GPS week: 2309   Day: 3   MJD: 60410.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     7     7    19 |  ----  ----  ---- |    11     8    28 |
emr | emr 3072 |     8     9    26 |  ----  ----  ---- |    12    11    29 |
esa | esa 3072 |    11    16    27 |  ----  ----  ---- |    12    15    26 |
gfz | gfz 3072 |     7     9    20 |  ----  ----  ---- |     9     8    28 |
grg | grg 3072 |     9    10    22 |  ----  ----  ---- |    10     7    27 |
igr | igr 3072 |     7     8    16 |  ----  ----  ---- |     9     9    25 |
igs | igs 3072 |     7     8    16 |  ----  ----  ---- |     9     7    24 |
jgx | jgx 2976 |     7     9    19 |  ----  ----  ---- |     8     9    23 |
jpl | jpl 3072 |    11    12    31 |  ----  ----  ---- |    15    11    39 |
mit | mit 3072 |     6     5    20 |  ----  ----  ---- |     9     7    26 |

Table 5.2309.4   GPS week: 2309   Day: 4   MJD: 60411.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3035 |     8    11    22 |  ----  ----  ---- |     9     7    23 |
emr | emr 2976 |    10    13    28 |  ----  ----  ---- |    12    13    26 |
esa | esa 2976 |    11    17    33 |  ----  ----  ---- |    13    16    21 |
gfz | gfz 3035 |     8    13    23 |  ----  ----  ---- |     9     8    22 |
grg | grg 3035 |    10    12    24 |  ----  ----  ---- |    10     9    24 |
igr | igr 3035 |     8    11    20 |  ----  ----  ---- |     9    10    19 |
igs | igs 3035 |     8    11    21 |  ----  ----  ---- |     9     8    19 |
jgx | jgx 2976 |     9    11    20 |  ----  ----  ---- |     7     9    23 |
jpl | jpl 2976 |    10    15    34 |  ----  ----  ---- |    15    14    32 |
mit | mit 3072 |     8    11    20 |  ----  ----  ---- |     9     7    20 |

Table 5.2309.5   GPS week: 2309   Day: 5   MJD: 60412.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    12    22 |  ----  ----  ---- |    10     8    22 |
emr | emr 2976 |    10    13    25 |  ----  ----  ---- |    16    18    31 |
esa | esa 2976 |    11    18    33 |  ----  ----  ---- |    15    17    26 |
gfz | gfz 2975 |     7    13    24 |  ----  ----  ---- |    11     9    21 |
grg | grg 2976 |     9    13    28 |  ----  ----  ---- |    12    10    24 |
igr | igr 2976 |     7    13    22 |  ----  ----  ---- |    10    10    21 |
igs | igs 2976 |     8    12    23 |  ----  ----  ---- |    10     9    20 |
jgx | jgx 2976 |     8    12    23 |  ----  ----  ---- |     8     8    21 |
jpl | jpl 2976 |    10    13    33 |  ----  ----  ---- |    17    13    37 |
mit | mit 2976 |     8    12    24 |  ----  ----  ---- |    10     8    21 |

Table 5.2309.6   GPS week: 2309   Day: 6   MJD: 60413.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    15    24 |  ----  ----  ---- |    11     7    25 |
emr | emr 2976 |     8    14    28 |  ----  ----  ---- |    11     8    29 |
esa | esa 2976 |    13    21    33 |  ----  ----  ---- |    12    15    28 |
gfz | gfz 2976 |     8    16    23 |  ----  ----  ---- |    10     6    25 |
grg | grg 2976 |     9    16    25 |  ----  ----  ---- |    11     6    29 |
igr | igr 2976 |     8    15    21 |  ----  ----  ---- |    10     7    26 |
igs | igs 2976 |     9    15    22 |  ----  ----  ---- |     9     6    24 |
jgx | jgx 2976 |     7    15    22 |  ----  ----  ---- |     9     7    24 |
jpl | jpl 2976 |    12    16    32 |  ----  ----  ---- |    14    12    39 |
mit | mit 2976 |     8    14    22 |  ----  ----  ---- |    10     6    26 |


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 6.2309   GPS week: 2309   MJD: 60407.500-60413.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -9      -8      53       1     -3 |       0     19
            |      12      19      52      54      8 |       3
emr   uuuuu |       4      -2     130      70     -3 |       1     22
            |      10      14      49      50     10 |       4
esa   uuuuu |      22      12      -4      76      4 |      27     31
            |      10       9      38      52      6 |       3
gfz   uuuuu |      -3      -1    -119     -33      1 |       5     17
            |      26      15      92     154      2 |       3
grg   uuuuu |      11      11     -55     127      1 |       8     19
            |      13       7      27      68      6 |       3
igr   xxxxx |     -11      -8      28      13      2 |      -2     16
            |       8       6      38      58      5 |       3
irf   xxxxx |       2       4      -6     -10      5 |      -2     19
            |       9       6      21      23      6 |       4
jgx   uuuuu |     -23     -31      19      73      0 |       8     20
            |      11      13      29      54      4 |       3
mit   uuuuu |       7      13     -89    -237      4 |      18     25
            |      22      17      55      56      9 |       3
ngs   uuuxu |     -19      -3      72      21      0 |       9     20
            |      54      33     158     388      4 |       2
sio   xxxxx |       7     -40    -111     -51    -14 |      23     33
            |      48      48      60      38     13 |       8


Table 7.2309.0   GPS week: 2309   Day: 0   MJD: 60407.500

                                                         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 |     -24     -27      69       1     11 |       2     23
emr   uuuuu |     -10       5     181     124    -19 |       8     25
esa   uuuuu |      20       2      60      41      6 |      30     37
gfz   uuuuu |     -24     -23     -31    -219      2 |       9     23
grg   uuuuu |      -9       3      -7      64     -8 |      14     24
igr   xxxxx |     -14      -1       1     122     13 |       0     20
irf   xxxxx |       2       6     -37      15     -5 |       1     22
jgx   uuuuu |     -12      -9     -32     168      8 |      12     26
mit   uuuuu |      14      28    -194    -153     -6 |      23     30
ngs   uuuxu |      70      36     -69     556      6 |      12     25
sio   xxxxx |     -20      21    -114     -36    -34 |      39     47

Table 7.2309.1   GPS week: 2309   Day: 1   MJD: 60408.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -16       4     142      38     -2 |      -1     23
emr   uuuuu |       7     -23     101      66      3 |       4     27
esa   uuuuu |       6      -1     -18      78     -3 |      26     34
gfz   uuuuu |     -25      11    -143    -125      2 |       5     22
grg   uuuuu |       2       4     -83     151     -2 |      10     24
igr   xxxxx |     -15     -17      -1      33      3 |      -2     21
irf   xxxxx |      -5      -5     -21      10     -1 |      -4     24
jgx   uuuuu |     -12     -39      42     106      3 |       9     25
mit   uuuuu |      24       5    -137    -258     -8 |      19     29
ngs   uuuxu |      18      38      54     451      4 |      10     24
sio   xxxxx |     -18    -100    -190       5    -29 |      31     45

Table 7.2309.2   GPS week: 2309   Day: 2   MJD: 60409.500

                                                         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 |     -12       9      12      97      4 |      -4     20
emr   uuuuu |      20      13      75     117    -13 |      -1     22
esa   uuuuu |      17       9     -51      -8      8 |      22     26
gfz   uuuuu |     -17     -15    -161    -167      2 |       1     16
grg   uuuuu |       4       5     -57     190      0 |       5     16
igr   xxxxx |      -5      -9     100     -49      2 |      -6     17
irf   xxxxx |      20       0      -2       0      9 |      -8     20
jgx   uuuuu |     -27     -28      41      31      1 |       4     18
mit   uuuuu |      39     -13     -51    -210     -1 |      14     21
ngs   uuuxu |     -59      10     296     191      0 |       6     18
sio   xxxxx |     103     -82     -92     -18    -10 |      21     31

Table 7.2309.3   GPS week: 2309   Day: 3   MJD: 60410.500

                                                         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     -32     -23     -12     -4 |      -2     19
emr   uuuuu |       6      -7     194     101      6 |      -2     22
esa   uuuuu |      27      15      30     120      4 |      24     28
gfz   uuuuu |     -16      17    -237     -48      1 |       3     15
grg   uuuuu |      28      14     -71     216     -4 |       6     16
igr   xxxxx |      -2     -13      51      44     -1 |      -3     15
irf   xxxxx |      -4       9     -20      -8      9 |      -5     18
jgx   uuuuu |     -22     -43      15      35     -3 |       7     18
mit   uuuuu |     -14      31     -64    -256     10 |      15     22
ngs   uuuxu |     -32     -21     190     -72     -3 |       8     18
sio   xxxxx |     -33      16    -114     -59     -3 |      19     29

Table 7.2309.4   GPS week: 2309   Day: 4   MJD: 60411.500

                                                         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      17      42     -40     -4 |      -2     18
emr   uuuuu |      -3      15      87     -13     -5 |      -2     22
esa   uuuuu |      26      26     -15      98     11 |      24     28
gfz   uuuuu |      -3      -5    -206      43     -2 |       3     15
grg   uuuuu |      19      22     -70     157      5 |       4     16
igr   xxxxx |     -18      -7       6     -31      2 |      -3     14
irf   xxxxx |      -3      11       1     -10     11 |      -4     18
jgx   uuuuu |     -38     -45      40      53     -3 |       6     18
mit   uuuuu |      -5      -2     -74    -187     13 |      15     22
ngs   uuuxu |       7     -53     202    -178     -7 |       8     18
sio   xxxxx |      31     -75    -180     -74      0 |      17     28

Table 7.2309.5   GPS week: 2309   Day: 5   MJD: 60412.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |       0     -14      75     -70    -14 |       3     15
emr   uuuuu |       8      -8     166      25      0 |       1     21
esa   uuuuu |      22      20     -36      57      7 |      29     32
gfz   uuuuu |      39      -3     -67     221      4 |       7     15
grg   uuuuu |      22      12     -67      67      6 |       8     18
igr   xxxxx |     -19      -2       0      -7     -4 |       2     12
irf   xxxxx |       3      11      23     -53      4 |       2     16
jgx   uuuuu |     -34     -32      32      16      0 |      10     17
mit   uuuuu |     -22      29     -48    -282      7 |      20     25
ngs   uuuxu |     -49     -11     -78    -379      3 |      11     18
sio   xxxxx |      13     -35     -17     -68     -9 |      20     30

Table 7.2309.6   GPS week: 2309   Day: 6   MJD: 60413.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -15     -11      51      -5    -10 |       1     14
emr   uuuuu |       1     -11     104      70      9 |      -2     18
esa   uuuuu |      38      11       2     149     -5 |      30     33
gfz   uuuuu |      28      11       9      68     -1 |       7     15
grg   uuuuu |      12      16     -30      45      8 |       8     17
igr   xxxxx |      -1      -3      41     -19      0 |       1     11
irf   xxxxx |      -2       0      16     -24      4 |       2     16
jgx   uuuuu |     -16     -23      -7     101     -4 |      10     18
mit   uuuuu |      12      17     -59    -312     12 |      20     26
ngs   uuuxu |     -87     -16     -89    -421      0 |      11     19
sio   xxxxx |     -24     -21     -74    -107    -11 |      17     25


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