[IGSREPORT-30176] Wk 2338 IGS Final Orbits

acc acc at igs.org
Fri Nov 15 04:52:35 UTC 2024


Author:  AC Coordinator / GA MIT 

sum-file Version 2.0
Final IGS Orbit Combination - Week 2338   (Oct 27, 2024 - Nov 02, 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_20243010000_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   | DJIG
                0  |  EMR   | BADG BADG
                0  |  ESA   | CPVG LAUT LAUT SCUB
                0  |  GFZ   | 21 POHN POHN
                0  |  GRG   | 17 SEYG KIRI NRMD SCUB SEYG
                0  |  JPL   | IISC THU2 CHTI FTNA GUAM IISC NRMD SUTM THU2
                0  |  MIT   | ABPO CRO1 DAEJ SFER TLSE TRO1 YAR3 ABPO CRO1 DAEJ
                0  |  MIT   | SFER TLSE TRO1 YAR3
                1  |  COD   | BAKE DARW DGAR IISC KIT3 MONP NRMD SCUB SCUB
                1  |  GFZ   | 21 POHN DGAR POHN SCUB
                1  |  GRG   | DAV1 FLIN KIRI NRMD DAV1 FLIN KIRI NRMD
                1  |  JPL   | BADG BAKE BADG BAKE CHTI FTNA IISC MONP NRMD SGOC
                1  |  JPL   | THU2
                1  |  MIT   | ABPO GMSD MDVJ SFER STJ3 TLSE YEL2 ABPO GMSD MDVJ
                1  |  MIT   | SFER STJ3 TLSE YEL2
                2  |  COD   | BAKE DARW DGAR HOLB MATE NICO MATE
                2  |  EMR   | BRAZ NYAL
                2  |  ESA   | MADR NICO MADR NICO
                2  |  GFZ   | 24 PTVL PTVL
                2  |  GRG   | CZTG NRMD SYOG CZTG KIRI NRMD SYOG
                2  |  JPL   | BADG IISC NRMD SYOG BADG BAKE CHTI DGAR FTNA HOLB
                2  |  JPL   | IISC NRMD PGEN PTGG SYOG THU2
                2  |  MIT   | AMC4 BRST MDVJ TRO1 YAR3 YEL2 AMC4 BRST MDVJ YAR3
                2  |  MIT   | YEL2
                3  |  COD   | CRO1 GUAM JOG2 KIT3 LPGS NRMD OUS2 POHN RIO2 SEYG
                3  |  COD   | SGOC SUTM TASH UNSA URUM JOG2 NRMD RIO2 SEYG
                3  |  EMR   | AREQ
                3  |  ESA   | THU2 AREQ
                3  |  GFZ   | 5 5 IRKJ POHN IRKJ MONP NYA2 OUS2 POHN RIO2 TASH
                3  |  GFZ   | UNSA
                3  |  GRG   | CZTG GMSD KIRI LPGS NRMD OUS2 SCUB CZTG GMSD KIRI
                3  |  GRG   | LPGS NRMD OUS2 SCUB
                3  |  JPL   | HOLB THU2 BADG CHTI GLPS HOLB SGOC SUTM THU2 URUM
                3  |  MIT   | AMC4 GANP GOLD MADR NRC1 PDEL TLSE YAR3 AMC4 GANP
                3  |  MIT   | GOLD MADR NRC1 PDEL TLSE YAR3
                4  |  COD   | DAV1 FLRS GODE HKSL LAUT MATE POHN POVE SGOC TWTF
                4  |  COD   | DAV1 GODE MATE TWTF
                4  |  EMR   | AREQ AREQ
                4  |  ESA   | UNSA UNSA
                4  |  GFZ   | GODE POHN TASH GODE GOLD POHN TASH
                4  |  GRG   | 16 AREQ CZTG HOLB KIRI NRMD SCUB AREQ CZTG HOLB KIRI
                4  |  GRG   | NRMD
                4  |  JPL   | BADG NRMD BADG GUAM HKSL IISC NRMD SGOC UNSA
                4  |  MIT   | AMC4 FLIN NANO TLSE AMC4 FLIN NANO TLSE
                5  |  ALL   | 26
                5  |  COD   | BADG BOGT GUAM LPGS NICO NNOR SAVO SCUB ULAB GODE
                5  |  COD   | ULAB
                5  |  ESA   | GODE DYNG NICO SYOG
                5  |  GFZ   | POHN GODE IRKJ POHN SCUB
                5  |  GRG   | 21 CZTG GODE PTGG CZTG KIRI NRMD PTGG SYOG
                5  |  JPL   | PGEN SGOC BADG CHTI CPVG FTNA GUAM NRMD PGEN SGOC
                5  |  MIT   | DRAO STJ3 TRO1 YAR3 YEL2 DRAO HERS STJ3 TRO1 YAR3
                5  |  MIT   | YEL2
                6  |  ALL   | 26
                6  |  COD   | ADIS DARW DYNG FAIR FLIN HOB2 MOBS NNOR NRMD SCUB
                6  |  COD   | SEYG ADIS
                6  |  ESA   | BOGT CCJ2 FAIR SYOG BOGT CCJ2 FAIR SYOG
                6  |  GFZ   | LAUT LAUT
                6  |  GRG   | 21 CZTG NRMD SYOG CZTG KIRI NRMD SYOG
                6  |  JGX   | GUAM GUAM
                6  |  JPL   | GUAM SGOC CHTI FAIR FTNA GUAM NRMD PGEN POHN PTGG
                6  |  JPL   | SGOC THU2
                6  |  MIT   | GUAM IRKJ MDVJ SFER GUAM HERS IRKJ MDVJ SFER

    
 5. New clock offsets and drifts were estimated for centres showing reference
    clock resets. Note that only the largest clock offset and drift are output
    to the summary file. However, the clock combination and the listed RMS
    include all the clock segments. In summary, the following clock
    shifts/resets were noticed and accounted for:
    
               Day | Centre |  Time  |  Jump
               ----+--------+--------+-------------
                0  |  COD   | ~02:00 | ~ -0.12 ns

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

 7. The following orbit solutions were excluded from the combination because they
    were biasing the weighted average (generally indicated by long arc RMS). They
    were still used for statistics computation.
    
               Day | Centre | PRN list
               ----+--------+---------------
                6  |  GFZ   |  26
                6  |  GRG   |  26

 8. Velocity changes were estimated to alleviate the effects of modeling problems,
    experienced by all centres,in the Long Arc (LA) process.
    
             Velocity changes per day and affected satellites:
    
               Day |  0 |  1 |  2 |  3 |  4 |  5 |  6 |
           --------+----+----+----+----+----+----+----+
           PRN G26 |    |    |    |    |    |  4 |  4 |

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

10. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |     .2   -2.2    -.6      -5      2    -18    -.11
       EMR  |   0 |     .8    -.5   -5.3      17    -13     16    -.13
       ESA  |   0 |     .4     .9     .3       0    -16     -9    -.67
       GFZ  |   0 |     .0    -.8     .2     -32      2    -20     .29
       GRG  |   0 |    -.1    -.9   -2.1      25     16      1    -.16
       JGX  |   0 |   -2.6    2.8    6.2     -17     13     -6    -.32
       JPL  |   0 |   -1.4    1.1   -2.8      -1     10    -13    -.07
       MIT  |   0 |    -.8   -1.3   27.2      11     13    -35    -.32
       NGS  |   0 |   -2.7    3.7    1.3      13     37    -42     .06

       COD  |   1 |     .1   -1.7    -.2       5     12    -24    -.09
       EMR  |   1 |    2.5    -.9   -7.9      33    -15     17     .18
       ESA  |   1 |     .1     .4     .8     -13      3    -15    -.55
       GFZ  |   1 |     .6     .1    -.1     -19     -7     11     .46
       GRG  |   1 |     .4    -.8   -1.8      18      7     30     .07
       JGX  |   1 |     .5     .6    2.9       2      7     16     .09
       JPL  |   1 |    4.2    5.4   -6.3      12     -3    -13    -.01
       MIT  |   1 |    2.6    -.6   26.0      14      4    -21    -.04
       NGS  |   1 |    3.1   -2.7    4.8       9     22    -29    -.07

       COD  |   2 |     .6   -1.9    -.3       0      1    -20     .05
       EMR  |   2 |    7.7    3.8   -7.8      16    -23      3     .10
       ESA  |   2 |     .5     .6     .4       1     -9     -4    -.55
       GFZ  |   2 |     .6   -1.1    -.5     -20     -9      3     .10
       GRG  |   2 |     .7    -.6   -1.6      16     18     13    -.17
       JGX  |   2 |    3.3    6.6    5.0      11      5     12    -.18
       JPL  |   2 |    2.4    6.9   -4.2      28     -9      5    -.25
       MIT  |   2 |    5.6    4.2   24.0      30      6      4    -.16
       NGS  |   2 |    8.7    5.4    5.9      24     -2    -18    -.12

       COD  |   3 |     .8   -1.1    -.1      -6      9    -22    -.09
       EMR  |   3 |    2.8    5.0   -3.7      33    -28     31    -.02
       ESA  |   3 |     .4     .1     .7     -15    -17     -3    -.69
       GFZ  |   3 |     .8    -.7    -.3     -26    -10     -3     .18
       GRG  |   3 |    1.4    -.9   -1.3      12      2     28    -.01
       JGX  |   3 |     .4    9.4    4.3       0      2      3    -.12
       JPL  |   3 |    2.9    6.4   -1.3       8    -13      5    -.30
       MIT  |   3 |    9.0     .7   26.3      44    -10    -19    -.05
       NGS  |   3 |    4.0    8.3    6.8      33      3    -10    -.11

       COD  |   4 |     .9   -1.8     .1     -12      8    -29     .04
       EMR  |   4 |    3.4    4.6   -2.2      33    -30     31    -.18
       ESA  |   4 |     .2   -1.7    -.3      18    -22     -5    -.47
       GFZ  |   4 |     .1   -1.7    -.2     -15     -7      2     .21
       GRG  |   4 |     .5    -.4   -1.4      20      0     10    -.09
       JGX  |   4 |    3.7    6.3   11.8     -21      6     25    -.29
       JPL  |   4 |    1.5    5.9     .3       3     -8      1    -.06
       MIT  |   4 |    4.0    2.8   23.2      48     -7     -3    -.09
       NGS  |   4 |    8.9    4.2   12.4      22      5    -21    -.28

       COD  |   5 |     .6   -1.9     .3     -15     27    -33    -.04
       EMR  |   5 |    3.5    5.1   -4.4      35    -15     15    -.14
       ESA  |   5 |    -.2   -1.0     .7      -9     -2    -21    -.64
       GFZ  |   5 |     .2   -1.1     .2     -34      5     -5     .04
       GRG  |   5 |     .1    -.4    -.3      -9      0     26    -.07
       JGX  |   5 |    1.2    6.7    8.5      -1     -6     11    -.45
       JPL  |   5 |    1.4    2.0   -9.9     -13     27    -24    -.08
       MIT  |   5 |    4.6    2.2   24.5      41      7     -6    -.12
       NGS  |   5 |    4.3    5.2   12.0      25     22    -18    -.40

       COD  |   6 |     .5   -1.5    -.2     -26     21    -24    -.14
       EMR  |   6 |    7.8    6.5   -4.7      27    -22     21    -.13
       ESA  |   6 |     .1    -.1     .3       5     -8     -1    -.61
       GFZ  |   6 |     .5    -.7    -.0     -25     10     -6     .36
       GRG  |   6 |    -.1     .0    -.5       0     13     19    -.27
       JGX  |   6 |    1.2    7.0   10.8      -7    -10     19    -.31
       JPL  |   6 |    2.8    8.5   -3.4      16     13    -15    -.05
       MIT  |   6 |    4.2    3.7   26.7      17    -15      9    -.13
       NGS  |   6 |    3.8   12.6   33.4      25     39    -19    -.26


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

12. Starting 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) until 16-Apr-2011 (GPS
    Week 1631, day 6, MJD 55667) the absolute antenna model is introduced (IGSMAIL
    #5438). The antenna phase center offsets and phase center variations are given
    in the file:
        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 1.2338.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.2338.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 2.2338.[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 3.2338.[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 5.2338.0-6). 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 2338 summary.                       (Oct 27, 2024 - Nov 02, 2024)

Table 1.2338.a   GPS week: 2338   MJD: 60610.000-60616.000

         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  780|    0     0     1     0    16    18   .00    9    8 |    -717      97      6     99
        |    0     0     0    19    12    11   .02           |      86     157
emr  108|    0     0    -3     5    -7   -16   .05    9    9 |   -1679     363     31     95
        |    0     0     1     5    12     7   .01           |     458    1049
esa  150|    0    -1     5   -31     4    -2   .00    9    9 |    -700    -212      6     83
        |    0     0     0    15     9    10   .02           |     485     763
gfz  128|    0     0     4    -2    14   -25   .10   11   10 |     -33     -74     10    125
        |    0     0     2    17    10    11   .03           |      93     134
grg  126|    0     0    -2     5     0     5  -.06   10    8 |     -37      36      7    120
        |    0     0     1    12     6    15   .02           |      58     131
igr  n/a|    0     0     0   -16     0     3   .00    4    3 |   -4088    -369     10     79
        |    0     0     1     6     8     7   .01           |    1070     331
jgx  n/a|    0     0     5     6   -19   -19  -.06   10   10 |     -12     -51     36    107
        |    0     0     0    12     4    11   .01           |      71     183
jpl  120|   -2     0     0    -1    -4     1   .04    9    9 |   -2512      59      7     69
        |    1     1     0    17    10    10   .03           |     387     296
mit  356|    1     0   -10     9    -3    31  -.00   10    9 |   -4215    -114     62     90
        |    0     0     0    42    23    38   .01           |    1019     167
ngs  269|    0     0    -2     7   -11    -1  -.08   11   11 |    -717      96    491    692
        |    0     0     6    18    21    22   .01           |      85     155


Table 1.2338.b   GPS week : 2338   MJD: 60610.000-60616.000   

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.2338.0   GPS week: 2338   Day: 0   MJD: 60610.000                            

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  780|    0     0     1    19    34    18   .02    7    7 |    -740     164      7    101
emr  107|    0     0     0    12   -22   -24   .04    9    9 |   -2513    2605     32     83
esa  150|    0    -2     5   -40   -12     7   .02    9    9 |   -1154     383      6     84
gfz  129|    1     1     2   -26    28   -18   .09    8    9 |     -45    -100     10    120
grg  123|    0     0    -2     4    -4    32  -.05    9    9 |    -122     217      7    121
igr  n/a|    0     0     0   -13    -1    11   .01    3    3 |   -2259    -380      9     92
jgx  n/a|    0     0     6    -6   -11   -27  -.04    9    9 |    -131     235     30    105
jpl  120|   -2     1     0   -17    -4     2  -.00    9    9 |   -2058     138      6     59
mit  356|    0     0    -9     0   -22   -18   .00    9    9 |   -2389    -120     62     91
ngs  271|    0     0    -6    36   -11    12  -.06   10   10 |    -735     154    442    672

Table 2.2338.1   GPS week: 2338   Day: 1   MJD: 60611.000                            

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  781|    0     0     1    13     8     4   .03    7    7 |    -787     196      6     96
emr  106|    0     0    -4    -1     6   -26   .02    9    9 |   -1323    -624     30     77
esa  150|    0    -1     5   -39     8   -19   .00    8    8 |    -648      50      6     66
gfz  128|    0     0     6    13    18   -35   .07    9    9 |     -91     105      9    125
grg  125|    0     0    -2    11     5    22  -.05   10    8 |     -50     141      8    129
igr  n/a|    0     0     2   -14    -9     0  -.01    4    4 |   -2952   -1010     10     70
jgx  n/a|    0     0     5    13   -20   -11  -.06    9    9 |     -44     112     31     99
jpl  120|   -2     1     0    -1    -4   -18   .02    9    9 |   -2150    -489      6     65
mit  356|    1     0   -10   -17   -20   103  -.01    9    9 |   -3228    -455     58     87
ngs  270|    0     0    -2     5     1   -45  -.07   10    9 |    -783     192    463    692

Table 2.2338.2   GPS week: 2338   Day: 2   MJD: 60612.000                            

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  778|    0     0     2     4    12    37   .00    7    7 |    -786     137      6    101
emr  107|   -1    -2    -3     9   -24    -7   .06    9    9 |   -1515     -96     31     89
esa  150|    0     0     6   -28     5    -8   .01    9    9 |     322   -1891      5     76
gfz  129|    0     1     1   -11     7   -38   .14   12   11 |      55    -156     12    126
grg  128|    0     1    -1    13     5     0  -.07    8    8 |     -80      71      7    107
igr  n/a|    0     0     1   -20   -12    -8   .03    3    3 |   -4205    -363     10     77
jgx  n/a|    0     0     6     4   -23   -35  -.07   10   10 |     -56     -18     37    106
jpl  120|   -3    -1     0    10   -14     7   .03    9    9 |   -2831     -18      8     76
mit  356|    1     0    -9     8    20    23  -.00    9    8 |   -4337     -98     62     80
ngs  274|    0     0    -4   -17     0    -9  -.09   10   10 |    -786     136    523    724

Table 2.2338.3   GPS week: 2338   Day: 3   MJD: 60613.000                            

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  779|    0     0     1    14    19    12  -.03    9    8 |    -782     317      7    100
emr  109|    0     0    -2    -3    -3   -22   .07    9    9 |   -1455    -171     31    105
esa  150|    1    -1     6   -42     1     5   .02    9    9 |    -959     133      6    125
gfz  128|    0     0     4     5    11   -29   .07   10    9 |       8      -3     10    127
grg  128|    0     0    -3    -2     4     0  -.06    9    8 |      44    -116      6    118
igr  n/a|    0     0     0   -26     8     0  -.00    3    3 |   -4430    -466     12     87
jgx  n/a|    0     0     5   -10   -14    -2  -.04   10   10 |      79    -195     40    103
jpl  120|   -2     0     0   -22     3    16   .04    9    9 |   -2818     -75      8     71
mit  356|    1     0   -10    55   -23     9   .02   10    9 |   -4669      13     67    101
ngs  275|    0     1    -4     1     1    17  -.08   11   11 |    -782     315    517    706

Table 2.2338.4   GPS week: 2338   Day: 4   MJD: 60614.000                            

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  780|    1     0     1   -16    33    28  -.00    9    8 |    -561    -145      6     96
emr  110|   -1     0    -2     4    -6   -15   .05    9    9 |   -2053     339     33    105
esa  150|    0    -1     5    -5     1   -11  -.02    9    8 |    -986     152      6     76
gfz  128|    0     0     6     4     0   -29   .10   10    9 |      92    -302     10    126
grg  128|    1     1    -1    23    -8    -3  -.09    9    8 |      -7     -69      7    121
igr  n/a|    0     0     0   -18     7     0  -.01    3    3 |   -4943      39     11     86
jgx  n/a|   -1     0     5    12   -19   -20  -.05   10   10 |     -10     -37     42    114
jpl  120|   -2     0     0     0   -19     0   .08    9    9 |   -2988     366      8     72
mit  356|    1     0   -10   -33    24    56   .00    9    9 |   -4850    -145     61     89
ngs  271|    0     0    -5    25     1   -11  -.06   12   11 |    -560    -148    498    672

Table 2.2338.5   GPS week: 2338   Day: 5   MJD: 60615.000                            

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  780|    0     0     1     0     4    12   .01    9    8 |    -727      72      6     95
emr  114|   -2     0    -2     8    -1    -6   .06   10   10 |   -1687     453     30    110
esa  150|    0    -1     5   -48    20     0  -.02    9    9 |    -807    -196      7     74
gfz  128|    1     0     5   -22    27    -6   .09   11   11 |    -183      32     10    126
grg  126|    0     1     0   -15    -9    -8  -.02    9    8 |     -65     111      7    123
igr  n/a|    0     0     0   -12     8    13  -.00    3    3 |   -4860    -111     10     75
jgx  n/a|    0     0     6     5   -22   -25  -.08   10   10 |      45    -295     34    111
jpl  120|    0     0     0    -9    10     2   .06    9    9 |   -2596     375      8     73
mit  356|    1     0    -9    78   -20    22  -.01   10    9 |   -4947      62     60     90
ngs  266|    0     0    -5    -1   -14    17  -.09   11   11 |    -732      86    468    657

Table 2.2338.6   GPS week: 2338   Day: 6   MJD: 60616.000                            

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  783|    0     0     1   -35     4    15  -.00   11    8 |    -639     -60      6    106
emr  109|    0     0    -4     4     3   -15   .05   11   11 |   -1210      35     35     99
esa  150|    0     0     5   -16     9     4   .01   10    9 |    -668    -121      6     82
gfz  127|    0     0     1    18    10   -18   .13   17   10 |     -73     -98     11    131
grg  128|    2     0    -4     3     4    -4  -.05   19    9 |      16    -100      7    121
igr  n/a|    0     0    -2    -7     2     6   .01    6    3 |   -4972    -296     11     71
jgx  n/a|   -1    -1     4    23   -22   -10  -.06   11   11 |      29    -160     41    113
jpl  120|    0     3    -1    28    -3     2   .05   11   11 |   -2148     116      8     68
mit  356|    1     0   -12   -28    20    22  -.01   11    9 |   -5089     -61     70     94
ngs  260|   -1     1    12     0   -57     6  -.09   15   15 |    -641     -58    531    726

       
       
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 3.2338.0   GPS week: 2338   Day: 0   MJD: 60610.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    7    7    7    7    9    3    9    7   11   12    3 |    20   21   23   23   22   21   23   19   25   23    21
   3  |    7   10   12   11    7    2    7    9   11    8    3 |    28   27   33   29   26   27   27   28   27   24    26
   4  |    4   18    6    9    8    2    9   19   11    8    4 |    12   20   14   18   17   14   14   21   19   16    13
   5  |    7    7    5    7   10    2   11   10    6   10    3 |    21   17   18   24   18   20   21   17   22   22    19
   6  |    6    8    8   11    9    3    7    9    7    9    3 |    24   24   26   21   19   23   21   24   21   24    22
   7  |    5    9   10    7    7    2    8    7    8    7    2 |    41   40   42   44   37   39   40   40   38   38    39
   8  |    5    7    8    6    6    3    7    7    7    7    2 |    24   25   26   25   23   24   22   24   22   23    23
   9  |    6    9    8    6    8    3    9    9   11   10    3 |    17   26   20   23   18   21   19   26   23   19    20
  10  |    6    7    9    6    8    2    6    7   11    9    2 |    21   20   25   19   20   21   21   20   20   21    20
 X11  |    9   14   10    9   12    4  ---    9    8    9    3 |    52   53   56   57   53   54  ---   53   52   51    53
  12E |    8    8   12   11   12    4   13    9    7   12    3 |    40   39   42   41   43   40   40   40   39   40    39
  13  |    5    8    7    9    5    2    7    7   11    9    2 |    14   19   17   15   12   14   13   19   17   17    15
  14E |   11   10   17    8   14    3    8   15   12   12    4 |    42   46   47   45   48   44   45   46   44   42    44
  15  |    5    9    7    5    8    2    7    8    7    9    2 |    30   27   29   30   26   28   28   29   30   29    28
  16E |    9   11    8    9   16    4   12   12    7   15    4 |    36   35   35   39   31   34   34   32   32   34    34
  17  |    8   11    7    8    8    3    8    7    7    8    3 |    24   26   21   23   20   22   22   23   23   23    22
  18  |    8   13   11    7    9    4    7   13   14   13    3 |    53   53   55   53   52   54   54   56   51   53    53
  19  |    6   10    5   10    8    3   10    8    7    9    3 |    22   23   21   21   18   20   18   20   21   21    20
  20  |    8    8    7    9   10    3    9    9    6   11    3 |    66   66   65   64   71   63   63   64   66   59    65
  21  |   11    6    6    9    8    3   11    6   10   10    3 |    18   17   19   22   17   17   19   17   22   20    17
  22E |    8    7    6   10   10    3    6    6    8    9    2 |    30   29   25   28   30   28   27   28   31   29    28
  23  |    7   10   11    6   10    2   12   10    9    8    3 |    36   37   41   38   41   38   36   41   42   38    38
  24  |    5    8    8    8    5    2    6    6    8    7    2 |    27   26   27   24   23   24   24   26   23   23    24
  25E |    6   13   12   10   10    4   13   11    5    8    3 |    21   26   26   20   24   21   22   25   22   21    21
  26E |    8    9    9   11    8    3   12   10   10   11    3 |   108  107  108  108  100  106  106   80  108  106   107
  27  |    6    8    8    7    6    2    6    7    7    5    2 |    23   23   26   26   22   23   21   22   20   21    22
  28  |    7    7    8    6    7    3    7    9    9    9    2 |    31   32   33   35   35   33   32   34   29   34    32
  29  |    6    7    6    8    7    3   12    9    7   10    3 |    32   31   32   34   30   31   31   31   35   31    31
  30  |    6    8    9    6    8    2    9    5    7   11    2 |    27   26   27   24   22   24   24   26   23   22    24
  31  |    6    9    7   10    7    3    9    8    9   12    3 |    93   94   94   89   92   93   92   94   98   92    93
  32  |    6    9    7    7    6    2    8   10   11   11    3 |    18   27   23   21   18   21   18   27   18   21    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    9    9    8    9    3    9    9    9   10      |T   33   34   35   34   33   33   32   33   34   33    33
 WRMS |    7    9    9    9    9    3    9    9    9   10      |NE  33   34   35   34   32   33   31   34   33   33    33
 MEDI |    6    9    8    8    8    3    8    9    8    9      |MD  27   27   27   26   24   24   24   27   25   24    24

Table 3.2338.1   GPS week: 2338   Day: 1   MJD: 60611.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    9    5    5    8    7    5   10    7   10    9    2 |    17   18   19   21   18   19   21   17   23   19    18
   3  |    4    7   11   11    6    3    6    8    8    9    2 |    20   22   24   21   20   19   18   19   19   21    19
   4  |    5   17    6    9    8    4   11   17   10    7    3 |     8   16    9   13   11    8   10   16   16   11     7
   5  |    9    7    5   15   10    4    8   11    5   11    3 |    20   17   17   23   18   18   18   16   18   21    17
   6  |    7    9    7    8    6    3    7    8    7    7    2 |    21   23   23   18   19   18   18   22   18   20    19
   7  |    5    8    8    6    7    3    9    6    5    9    2 |    27   27   26   29   24   26   25   27   26   26    25
   8  |    6    6    8    6    6    3    6    6    7   12    2 |    22   23   25   24   22   23   23   22   20   27    22
   9  |    4   11    6    7    8    4    7   10    5   11    2 |    15   25   16   16   12   14   14   24   19   16    16
  10  |   12    9    9   10    7    4    7    6    7    9    3 |    20   20   23   20   18   19   17   18   18   21    18
 X11  |   10   16    8    8   10    3  ---    9    7   12    4 |    33   37   36   37   36   34  ---   36   31   36    34
  12E |    8    9   11    8   11    7   14    8    7    9    3 |    29   30   34   31   31   33   32   29   35   34    31
  13  |    7    8    7    9    5    4    7    7   12   12    3 |    12   18   14   12   10   12   11   17   17   16    13
  14E |    9   10   18    8   13    3    9   11   12   14    4 |    28   34   34   34   33   30   30   32   34   26    30
  15  |    6    8    6    6    7    3    8    5    7    9    2 |    19   20   18   22   17   20   19   20   20   21    19
  16E |    8    9    6   13   12    4   13    9    8   13    3 |    35   38   38   43   37   37   38   35   34   39    36
  17  |    7   11    5    6    8    3    6    6    8    6    2 |    19   23   17   20   16   18   17   21   20   20    18
  18  |    9   13   10    8    9    4    9   13   14   16    4 |    32   35   32   35   33   32   32   36   31   34    32
  19  |    7   10    4   10    7    3    9    6    6   11    2 |    18   19   17   18   15   15   14   17   17   20    16
  20  |    9    8    6   16   30    4    7   11    6    9    4 |    60   60   59   59   73   59   58   58   58   56    59
  21  |   10    7    5    9    6    5   13    6    9    7    3 |    16   18   16   20   16   16   18   16   20   16    16
  22E |    7    9    5    6    7    4    7    5    8    8    2 |    21   23   19   22   23   21   19   20   24   24    21
  23  |    9   10   12   12    9    3   11   10    7   12    3 |    23   26   26   25   27   24   25   26   28   23    24
  24  |    7    8    9   11    5    3    6    5    9    7    2 |    24   22   23   19   18   19   18   22   18   20    19
  25E |    7   11   12   10    8    4   13   12    8    9    3 |    24   27   29   23   25   25   24   30   27   26    25
  26E |   10    8    9    8   10    4   15   10   11   12    3 |    92   91   92   92   85   91   89   67   94   91    91
  27  |    6    5    7    6    8    3    6    6    7    7    2 |    21   23   24   26   21   21   20   21   19   22    21
  28  |    7    7    7    8    9    2    8    8    9    9    2 |    28   30   30   33   34   30   30   30   29   31    30
  29  |    5    6    5    9    8    5   13    9    9   10    3 |    24   22   22   24   21   22   23   21   23   25    22
  30  |    7    7    9    7    7    4    7    6    7    6    2 |    25   25   25   26   20   22   23   26   18   23    23
  31  |    7    8    7    8   13    5   11    8   16    8    3 |    91   92   92   88   88   91   91   92   94   93    91
  32  |    7   11    7    9    7    3    8   10   10   10    3 |    16   26   20   17   14   17   13   26   15   17    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    9    8    9   10    4    9    9    9   10      |T   27   30   29   29   27   27   26   28   28   28    27
 WRMS |    7    9    8    9    8    4    9    9    9    9      |NE  27   29   29   28   27   26   26   28   27   28    26
 MEDI |    7    8    7    8    8    4    8    8    8    9      |MD  22   23   24   23   21   21   20   22   20   23    21

Table 3.2338.2   GPS week: 2338   Day: 2   MJD: 60612.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    5    7    7   14    8    2    9    6    9   16    3 |    37   37   38   39   35   37   35   35   37   38    36
   3  |    7    9   12   11    6    3    8    8    9   10    3 |    36   37   38   35   34   36   35   36   35   38    35
   4  |    5   18    6    6   10    2    9   18   10    9    4 |    31   35   32   33   33   31   32   33   34   33    31
   5  |    7    9    5    6   10    2   10   10    6   11    3 |    31   30   26   30   30   27   26   27   29   33    28
   6  |    6   11    7   15    6    4    8    7    8    8    3 |    35   36   36   33   33   33   31   35   32   33    33
   7  |    5    9    8    9    8    3    9    6    7    9    2 |    39   41   40   42   37   39   38   40   38   37    38
   8  |    5    8    8    7    6    3    7    6    7    8    2 |    34   35   34   34   32   32   32   35   30   31    33
   9  |    6    9    7    5    8    2    7    9    6    9    2 |    32   39   33   33   32   33   31   37   34   35    33
  10  |   14   11   10   13    6    3    8    6    6   12    3 |    37   35   36   32   34   33   34   34   31   36    34
 X11  |   10   15   10    8    9    4  ---   10    8   11    4 |    35   36   39   36   37   36  ---   38   35   37    36
  12E |    9   10   13   10    9    4   15    9   10   10    3 |    44   46   45   44   44   44   44   44   43   44    44
  13  |    7    7    6    6    5    3    7    6   10    8    2 |    31   35   30   32   30   29   25   32   28   30    30
  14E |   10   12   19    8   12    3    8   13   12   16    4 |    43   47   47   44   43   43   43   45   41   44    43
  15  |    5    7    6    6    6    3   10    5    8    7    2 |    33   34   32   32   32   31   31   33   31   32    32
  16E |   11    9    9   13    9    5   12    9    7   14    3 |    38   41   41   37   38   40   39   39   36   38    38
  17  |    6   11    7    7    8    3    7    5    7    6    2 |    38   39   36   38   35   36   35   38   34   37    36
  18  |    8   11   12    8    8    3    8   14   10   10    3 |    35   36   38   34   37   34   34   40   32   34    35
  19  |    4   10    4    8    7    2   10    6    9   12    2 |    34   35   33   35   32   32   30   34   31   36    33
  20  |    8    9    6    7   14    4   10    9    5   11    3 |    60   61   60   59   54   59   59   60   58   60    58
  21  |    8    6    6   10    8    3   14    7    9   18    3 |    36   36   35   34   32   34   32   34   35   40    34
  22E |    7   10    7   10    7    4    7    4    7   11    2 |    40   41   39   42   41   39   37   39   38   44    40
  23  |    8   10   13   10    8    2   11   11    8   10    3 |    39   41   42   38   42   39   39   43   41   39    40
  24  |    6    6    9   14    5    2    6    7    8    5    2 |    37   37   34   35   31   34   33   35   30   33    33
  25E |   11   12   13   10   12    5   12   12    5    9    4 |    36   38   40   37   39   37   36   39   36   38    37
  26E |   10    9    9   42    8    5   16   11   15   12    6 |    58   58   56   59   53   56   59   49   55   56    56
  27  |    8    7    7    7    4    1    7    6    8    7    2 |    31   36   34   34   30   31   31   33   28   28    31
  28  |    6    7    7    6    7    3    9    7    8    9    2 |    24   24   26   25   28   26   23   27   26   28    25
  29  |    7    8    5    7    7    3   14    9    9   10    3 |    33   31   30   32   30   31   33   31   31   29    31
  30  |    6    8    8    6    7    2    6    7    7    6    2 |    31   33   33   32   31   31   29   33   29   32    31
  31  |    6    8    7    9    8    3   11    8    8   11    3 |    73   75   74   72   72   74   74   74   72   73    73
  32  |    7    9    8    8    5    3    7   10   10    9    3 |    39   44   40   39   39   40   39   44   37   39    40
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7    9    9   12    8    3   10    9    9   10      |T   38   39   38   38   37   37   36   38   36   38    37
 WRMS |    7    9    9   11    8    3   10    9    8   10      |NE  37   38   38   36   36   36   36   38   35   37    36
 MEDI |    7    9    7    8    8    3    9    8    8   10      |MD  36   37   36   35   34   34   34   36   34   37    35

Table 3.2338.3   GPS week: 2338   Day: 3   MJD: 60613.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    9    7    6    8   10    4    8    8   12   13    3 |    19   22   22   24   18   21   19   17   22   24    19
   3  |    8    8   11    9    8    2    8    8   12   12    3 |    26   26   31   27   26   26   25   26   26   29    25
   4  |    7   17    6    7   10    3    9   17   15   12    4 |    16   23   16   20   19   16   15   21   23   20    16
   5  |    9    9    6   11    9    3    8   11    8   11    3 |    30   28   27   29   30   27   27   27   29   31    28
   6  |    7    9    7    8    8    3    9    6    9    8    2 |    26   25   28   25   24   24   23   26   24   26    24
   7  |    7    8    9    9    8    3   12    6   10   11    3 |    35   34   33   37   32   31   32   33   33   30    32
   8  |    7    8    8    6    7    2    9    6    7   10    2 |    25   25   25   25   23   24   23   25   22   28    23
   9  |    5    9    6    7    7    4    8    8   11   10    3 |    22   29   23   24   22   22   18   29   26   23    23
  10  |   13    9    9    6    5    2    9    8    7   11    3 |    28   26   28   25   24   25   23   26   23   28    24
 X11  |    9   14    9    7    9    3  ---    9    9    9    3 |    30   33   35   34   34   32  ---   34   29   30    32
  12E |   10    9   11    7   10    5   14    9    8   12    3 |    33   31   33   30   31   32   33   31   31   32    30
  13  |    6    6    6   11    8    3    7    7   11    8    2 |    17   21   19   18   19   17   16   21   19   20    18
  14E |   15    9   20    7   15    3   10   14   15   16    5 |    28   28   35   28   30   26   25   30   27   23    26
  15  |    6    7    7    6    7    3   12    5    7   12    2 |    33   32   32   34   30   31   33   31   30   29    31
  16E |   11    9    9    8   11    5   15    9   10   13    3 |    20   20   24   19   21   21   23   20   21   26    20
  17  |    8   11    8    9    9    2    9    6    8    9    3 |    29   30   26   30   25   26   26   29   27   28    27
  18  |    8   13   11   10    8    4   10   12   11   11    3 |    32   34   36   37   33   33   31   38   30   33    33
  19  |    8   10    5   11    7    2   11    6    9    7    3 |    24   25   23   28   21   22   21   24   24   24    22
  20  |   11    9    7   12   14    3    8    9   10   10    3 |    47   47   43   44   48   44   43   44   40   42    43
  21  |   13    6    6   12   10    5   13    8   11   12    3 |    21   23   23   27   19   23   21   20   22   26    21
  22E |   17    7    7   11    9    3    7    5   10    8    3 |    32   25   24   29   26   24   20   26   28   26    25
  23  |    9   10   14    9    9    2   12   11    7   13    3 |    23   25   29   23   26   26   23   29   28   29    25
  24  |    6    7    9    8    6    2    7    6    7   11    2 |    24   26   25   24   22   22   20   24   21   20    22
  25E |    8   10   14   12   12    4   12   13    7   13    4 |    45   48   49   42   46   46   44   50   45   44    45
  26E |   13    8    9   30   11    4   14    8   13   14    5 |   110  109  110  109  103  109  108   85  112  110   109
  27  |    9    6    8    7    6    2    8    5    9    6    2 |    23   23   23   21   20   22   21   24   22   23    21
  28  |    6    7    7    7    8    2    8    8    8    8    2 |    20   25   24   23   27   24   20   25   24   25    23
  29  |    5    8    6   10    6    4   14   10    9   13    3 |    33   31   32   31   32   32   35   31   35   38    32
  30  |    8    6    9    7   10    2    8    6    7   10    3 |    25   24   23   22   23   21   20   23   20   21    21
  31  |    5    8    7   10    9    3   11    8    8    8    3 |    49   50   50   50   47   49   49   50   52   48    49
  32  |    8    9    7    9    5    2    9    9   11   12    3 |    18   26   21   19   18   20   19   26   18   20    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9    9    9   10    9    3   10    9   10   11      |T   30   31   31   30   29   29   28   30   30   30    29
 WRMS |    8    9    9    9    8    3   10    9    9   11      |NE  26   28   28   27   26   26   25   28   26   28    26
 MEDI |    8    9    8    9    9    3    9    8    9   11      |MD  26   26   27   27   26   25   23   26   26   28    25

Table 3.2338.4   GPS week: 2338   Day: 4   MJD: 60614.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    9    6    7    7    9    2    6    7   11   11    3 |    29   29   32   31   29   30   32   30   34   33    30
   3  |    7   10   11    7    6    3    7    8    9    8    3 |    32   30   36   33   30   32   31   33   31   31    31
   4  |    6   19    6    6   11    2    8   19   11    8    4 |    22   26   24   26   25   24   25   27   26   26    22
   5  |    7    8    5    8   11    3   10   10    6   10    3 |    28   25   26   27   29   26   27   24   26   30    26
   6  |    8   10    7    7    7    3    8    6    8    8    2 |    28   29   29   26   26   27   26   29   27   25    26
   7  |    6    8    9    8    9    2    9    8    7    8    2 |    36   35   35   38   32   35   36   34   33   35    34
   8  |    7    6    7    8    6    2    9    6    8   11    2 |    28   31   30   30   28   29   30   31   27   29    28
   9  |    6   10    8    6    7    3    9    8    9    9    3 |    26   32   29   28   26   29   29   33   30   31    28
  10  |   13    8    9   12    6    2    8    8   10   10    3 |    31   30   32   33   29   30   30   31   29   31    29
 X11  |    9   16    8    6   10    3  ---    9    7   11    3 |    29   32   34   32   34   31  ---   34   31   25    31
  12E |   11   10   10   11   11    4   13    9    8   13    3 |    40   41   42   44   38   41   41   39   41   42    40
  13  |    5    8    6    9    7    2    7    6   12   12    3 |    21   27   22   24   21   22   20   26   20   20    21
  14E |   11   10   19    9   13    4   10   14   11   18    4 |    39   42   44   41   38   40   39   41   37   38    38
  15  |    6    7    7    6    7    2   10    6    7   11    2 |    34   36   33   36   33   33   34   34   32   33    33
  16E |   11    8    9   11   23    3   12    8    9   16    4 |    30   32   33   34   33   31   33   31   32   37    31
  17  |    8    9    6    9   10    3    9    6   10    8    3 |    30   30   28   33   26   29   29   30   28   29    28
  18  |   10   13   10    7    8    3   10   13   11   16    4 |    29   33   36   33   32   32   29   38   31   35    32
  19  |    6   10    4    9    8    2   11    6   11    8    3 |    25   25   25   26   22   24   23   25   24   24    23
  20E |    8    9    7    7   11    4   11    8    8   17    3 |    79   81   80   79   81   79   82   80   81   77    80
  21  |   15    6    5    9    9    2   14    9    9   13    3 |    28   28   27   30   22   27   28   28   31   32    27
  22E |    8    8    6    9    7    3    7    6    8   15    3 |    46   45   42   44   41   43   41   42   42   51    43
  23  |    8    9   14   11    9    2   10   12    8   14    3 |    31   35   37   35   35   34   35   38   37   32    34
  24  |    7    9    9    6    8    1    7    5    7   14    3 |    23   31   28   27   26   27   25   29   23   28    25
  25E |    9    8   13    8    8    4   10   12    6   11    3 |    31   32   35   33   32   30   30   34   31   27    31
  26E |   15    8    9   25    9    4   13    9   13   12    4 |   140  141  140  139  132  139  142   92  139  143   140
  27  |    8    7    7    8    6    2    8    5    9   13    3 |    25   30   30   27   28   28   30   30   26   29    27
  28  |    7    7    7    7    9    2    8    8    9   13    3 |    22   25   25   24   26   24   24   27   28   25    24
  29  |    8    6    5    8    8    3   12    8    9   14    3 |    31   29   31   30   30   31   33   30   30   32    29
  30  |    8    9    8    9   10    2    8    6    7    7    3 |    24   27   26   24   23   24   24   26   23   25    23
  31  |    6   10    7   11    8    3   11    7    8   12    3 |    72   74   73   74   71   71   72   74   72   76    72
  32  |    7    9    7   10    5    2    6    9   11    9    3 |    33   38   35   35   32   35   33   41   32   38    34
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9    9    9   10    9    3   10    9    9   12      |T   36   38   38   37   35   36   37   36   36   37    36
 WRMS |    8    9    8    9    8    3   10    9    9   11      |NE  31   33   34   33   31   32   32   34   32   33    31
 MEDI |    8    9    7    8    8    3    9    8    9   11      |MD  30   31   32   33   30   30   30   31   31   31    30

Table 3.2338.5   GPS week: 2338   Day: 5   MJD: 60615.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |    9    7    7    8    9    3    8    7   10   10    3 |    19   21   23   27   19   21   21   18   25   22    20
   3  |    7   10   12    8    7    3    8    9   13    9    3 |    24   24   29   25   23   23   20   24   26   25    23
   4M |    6   18    6    8   10    3   10   19   12    8    4 |    12   21   16   17   16   12   13   21   18   17    13
   5M |    9   10    5   13    9    2   10   12    8    7    3 |    45   44   45   45   45   44   46   43   45   44    44
   6  |    7    9    8   12    7    3    6    7    9    8    3 |    27   27   27   26   25   25   23   27   24   24    24
   7M |    5    8    9    9    8    3   10    7    6   14    3 |    27   28   26   31   26   27   28   29   26   30    27
   8  |    6    8    6    9    5    2    7    6    6    9    2 |    20   23   24   24   20   22   21   22   21   24    21
   9M |    6   11    8    9    7    4    8    9    7    8    3 |    21   28   24   27   21   22   20   29   22   23    23
  10  |   11    9    8    9    6    3    8    7    9   12    3 |    25   24   28   26   22   25   23   25   22   28    23
 X11  |   10   14    8    9    9    3  ---   10    9    9    3 |    36   40   38   39   40   38  ---   38   36   39    37
  12E |    8   10   10   10   17    5   15    8   11   14    4 |    37   38   42   40   42   38   41   40   43   44    40
  13M |    5    7    8    8    5    2    6    7   12    7    2 |    17   20   16   16   15   16   13   20   17   15    15
  14E |   13   11   20   14   12    3   10   10   13   15    4 |    24   27   34   33   29   26   26   27   26   23    26
  15M |    5    8    8    7    5    2    9    6   15   10    3 |    44   45   45   45   43   45   44   44   47   46    44
  16E |   12    9   10   12    8    2   15    8    8   13    3 |    24   27   30   28   22   26   28   24   26   29    25
  17M |   12   10   11   12    8    4   10    8   10    7    3 |    32   32   30   35   30   30   29   31   29   32    30
  18  |    8   13   10    7    6    3    7   13   11   13    3 |    37   39   37   39   38   37   39   41   37   35    37
  19M |   10    9    8   11    9    2   12    6   10   10    3 |    26   26   26   28   24   25   23   25   23   28    24
  20E |    7    9    8   10   11    3    9    9    9    9    3 |    49   52   49   50   54   50   49   51   52   49    50
  21  |   12    7    5   10   19    4   14    8    9   11    4 |    21   23   22   29   19   23   21   20   23   25    20
  22E |    9    8    7   16    7    2    6    6    9   10    3 |    31   30   31   38   30   31   30   30   35   33    31
  23  |   10    9   13   12    8    3   13   12    7   12    3 |    23   27   28   26   28   26   25   29   27   28    25
  24  |    7    6   10    7    7    3    6    7    7   14    3 |    23   28   25   24   23   23   21   27   21   23    23
  25E |   10    9   15   26    7    5   11   10   15   14    5 |    29   30   31   33   29   29   28   30   35   36    29
 X26E |   16   13    9   20   14    3   11  ---   14   15    5 |   194  201  198  199  193  197  197  ---  194  196   196
  27  |    7    7    7    6    6    3    7    6    7   11    2 |    20   21   23   21   20   20   20   22   20   23    20
  28  |    9    9    8    8    8    2   10    8    8   11    3 |    33   36   36   36   36   35   35   38   34   39    35
  29  |    6    8    6    9    7    4   15    8    7   15    3 |    33   31   32   29   31   31   30   30   31   32    30
  30M |    9   10    9    8   10    3    6    9   16   11    3 |    26   27   26   24   23   24   21   29   29   25    24
  31  |    8   10    8   11    8    3   12    8    8    8    3 |    37   40   37   34   35   36   36   40   35   32    36
  32  |    7   10    6    9    4    2    7    9    9   12    3 |    18   27   20   15   15   18   16   27   15   22    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   10    9   11    9    3   10    9   10   11      |T   33   35   35   35   33   33   32   30   34   35    33
 WRMS |    8   10    9   11    8    3   10    9    9   11      |NE  26   28   28   28   26   26   25   28   26   28    26
 MEDI |    8    9    8    9    8    3    9    8    9   11      |MD  26   28   29   29   26   26   25   29   26   28    25

Table 3.2338.6   GPS week: 2338   Day: 6   MJD: 60616.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs  IGS |   cod  emr  esa  gfz  grg  igr  jgx  jpl  mit  ngs   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   2  |   10    7    4   10    8    3    9    8   11   12    3 |    19   18   21   25   20   20   21   19   26   26    20
   3  |    8    9   11   11    7    3   11    9   11   13    3 |    28   27   33   31   26   28   27   27   28   25    27
   4  |    8   18    7    9   11    3   10   17   12   14    4 |    16   22   18   20   21   16   19   22   26   24    17
   5  |   10    9    7   11   13    4   13   10    8   15    3 |    33   30   30   32   30   30   30   29   30   37    30
   6  |    7   10    8   13    8    3    8    8   10   13    3 |    26   25   26   23   21   22   21   24   21   24    22
   7  |    5    7    9   12    8    2    9    6    8    9    3 |    76   76   76   77   73   75   75   75   75   76    75
   8  |    7    9    7    9    6    3    7    6   10   16    3 |    26   27   27   24   24   25   26   26   24   29    25
   9  |    6   11    9   15    8    5    9   10    8   13    3 |    19   29   21   25   21   23   19   28   23   22    21
  10  |    7    9    8   12    8    2    7    9   10   11    3 |    24   22   28   27   23   23   23   22   22   23    22
 X11  |   10   15    9   14    9    3  ---    9    8   19    4 |    48   48   51   52   51   48  ---   51   46   53    49
  12E |   10    9   10    9    9    5   15    9    8   19    4 |    50   50   53   48   49   50   49   47   49   52    49
  13  |    5    8    8    8    7    3    9    7   12   12    3 |    17   21   19   22   17   18   15   21   16   21    17
  14E |   14   11   18    7   13    4   12   12   14   20    5 |    38   40   43   40   38   38   39   39   41   41    38
  15  |    8    6    7    8    7    3   11    6   11   10    3 |    36   36   36   40   36   36   35   38   35   37    36
  16E |   11   11    8    9   16    4   15   12    9   18    4 |    31   38   38   33   27   34   36   37   33   37    33
  17  |   11    9    7    8    9    3    9    8   12   13    3 |    27   25   20   25   21   21   19   23   24   27    22
  18  |    9   13    9    8    9    3    9   14   14   13    4 |    50   53   54   54   52   52   50   56   48   55    51
  19  |    9   11    6   11    8    2   12    8   14   15    3 |    21   18   18   25   17   17   14   16   20   24    17
  20E |    7   10    7   11   11    3    8    7   10   11    3 |    53   54   53   50   57   52   51   53   53   52    53
  21  |   12    9    5    8   19    4   13    9   10   12    4 |    19   19   19   23   21   20   20   18   24   25    19
  22E |   10    9    6   11    6    3    7    7   12   15    3 |    31   27   25   30   23   25   25   27   27   31    26
  23  |    8    9   15   17   10    3   11   13    7   10    4 |    27   31   36   33   34   32   29   34   34   32    31
  24  |    7    6   10    7    7    2    6    7    8   12    2 |    20   23   24   21   18   20   18   24   18   24    19
  25E |    9    9   15   28    8    4   11   11   10   17    5 |    77   78   79   79   78   77   77   78   77   78    77
  26E |   42   30   26   68   90   28   29   34   29   40   13 |   475  473  472  477  431  467  476  485  477  478   474
  27  |    6    7    7    9    6    3    6    7    8   15    2 |    23   24   25   21   21   22   22   23   22   25    22
  28  |    7    7    8    6    6    3   10    8    8   14    3 |    31   31   33   33   33   32   30   34   33   37    32
  29  |    9    9    5    9    7    3   15    9   10   17    3 |    38   37   38   35   36   37   39   37   39   38    36
  30  |    8    7    8   10    8    3    8    7    7    8    2 |    32   33   31   31   31   30   30   33   30   33    31
  31  |    6   12    8   10    7    3   10    9   12   10    3 |    59   63   60   58   57   58   59   63   58   61    59
  32  |    6   11    6    9    7    2    8   10   10   10    3 |    22   30   25   21   22   23   20   30   21   23    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   11   10   17   19    6   11   11   11   15      |T   48   49   49   49   46   47   47   49   48   50    47
 WRMS |    8   11    9   10    9    3   11   11    9   15      |NE  30   31   33   32   30   30   28   32   30   33    30
 MEDI |    8    9    8   10    8    3    9    9   10   13      |MD  31   30   31   31   27   30   27   30   30   32    30



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 4.2338   GPS week: 2338   MJD: 60610.0-60616.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |U   10    14    23 |U   11    17    49 |U   12    13    32 |
emr | emr 2970 |U   14    14    30 |U   13    17    54 |    13    12    30 |
esa | esa 2976 |    16    19    43 |U   12    19    51 |U   16    19    32 |
gfz | gfz 2975 |U   10    10    24 |U   11    15    38 |    11     9    25 |
grg | grg 2975 |U   11    12    21 |U   12    18    43 |    11    11    25 |
igr | igr 2975 |    11    12    23 |    11    16    42 |    11    11    26 |
igs | igs 2975 |    11    13    24 |    11    15    43 |    12    12    25 |
jgx | jgx 2880 |U   11    12    24 |U   12    17    46 |     9    10    27 |
jpl | jpl 2962 |    18    18    33 |    10    17    51 |    15    17    31 |
mit | mit 2976 |U   10    11    21 |U   11    16    43 |U   10     9    26 |



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 5.2338.0   GPS week: 2338   Day: 0   MJD: 60610.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    10    15    30 |    13    18    45 |    13    11    34 |
emr | emr 2974 |    16    17    36 |    15    16    48 |    14    13    29 |
esa | esa 2976 |    15    22    42 |    14    19    43 |    18    19    33 |
gfz | gfz 2976 |    10    11    30 |    13    17    40 |    13     8    28 |
grg | grg 2976 |    12    15    27 |    13    18    45 |    13    10    31 |
igr | igr 2976 |    11    13    27 |    12    17    38 |    13     9    28 |
igs | igs 2976 |    12    15    29 |    12    16    38 |    13    11    28 |
jgx | jgx 2880 |    10    13    28 |    14    19    45 |    11    10    30 |
jpl | jpl 2976 |    19    17    36 |    11    16    41 |    17    20    29 |
mit | mit 2976 |     8    12    24 |    13    16    36 |    11     8    27 |

Table 5.2338.1   GPS week: 2338   Day: 1   MJD: 60611.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    15    12    23 |    11    18    45 |    12    13    30 |
emr | emr 2976 |    17    10    29 |    11    17    50 |    12    13    29 |
esa | esa 2976 |    20    16    41 |    11    21    39 |    16    22    34 |
gfz | gfz 2976 |    14     9    22 |    12    16    37 |    11     9    25 |
grg | grg 2976 |    15    11    23 |    11    17    33 |    12    12    27 |
igr | igr 2976 |    15     9    23 |    10    16    36 |    11    12    26 |
igs | igs 2976 |    15    10    24 |    10    15    36 |    11    13    25 |
jgx | jgx 2880 |    14    10    23 |    11    19    43 |     9    12    26 |
jpl | jpl 2976 |    20    14    31 |     9    18    42 |    15    18    28 |
mit | mit 2976 |    16    12    22 |     9    13    37 |    10     8    26 |

Table 5.2338.2   GPS week: 2338   Day: 2   MJD: 60612.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     8    16    23 |    10    16    47 |    11    15    33 |
emr | emr 2976 |    12    14    30 |    12    15    56 |    10    11    27 |
esa | esa 2976 |    14    20    41 |    11    18    51 |    16    20    29 |
gfz | gfz 2976 |     7    10    20 |    11    16    35 |    10    11    22 |
grg | grg 2975 |     8    13    20 |    10    17    37 |    10    12    23 |
igr | igr 2976 |     8    12    21 |    10    15    42 |    10    11    22 |
igs | igs 2976 |     8    13    22 |    10    14    43 |    10    13    22 |
jgx | jgx 2880 |     7    12    18 |    10    17    52 |     8    11    25 |
jpl | jpl 2976 |    15    16    30 |    10    15    51 |    14    16    27 |
mit | mit 2976 |     7    13    18 |    10    17    43 |     9    11    25 |

Table 5.2338.3   GPS week: 2338   Day: 3   MJD: 60613.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    10    14    21 |     9    15    51 |    12    14    30 |
emr | emr 2971 |    12    12    26 |    11    14    68 |    13    11    30 |
esa | esa 2976 |    15    19    42 |    10    18    60 |    16    18    35 |
gfz | gfz 2976 |     9    11    18 |    10    13    39 |    13     9    30 |
grg | grg 2976 |    10    14    17 |     9    15    45 |    11    11    28 |
igr | igr 2976 |    10    12    20 |     9    13    47 |    11    12    27 |
igs | igs 2976 |    10    12    21 |     8    13    49 |    12    11    26 |
jgx | jgx 2880 |     8    11    15 |     9    14    48 |     9    10    26 |
jpl | jpl 2976 |    15    15    30 |     9    15    58 |    15    13    30 |
mit | mit 2976 |     9    11    17 |     9    13    47 |    11     8    26 |

Table 5.2338.4   GPS week: 2338   Day: 4   MJD: 60614.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |    10    14    19 |    11    18    50 |    13    17    31 |
emr | emr 2967 |    14    15    29 |    13    23    45 |    14    15    27 |
esa | esa 2976 |    15    20    41 |    13    25    41 |    18    20    31 |
gfz | gfz 2976 |     8     7    19 |    13    17    30 |    12    11    22 |
grg | grg 2976 |    10    10    19 |    12    18    36 |    12    12    22 |
igr | igr 2976 |     9    12    22 |    12    19    37 |    13    15    25 |
igs | igs 2976 |     9    12    22 |    12    18    36 |    13    13    22 |
jgx | jgx 2880 |     8     9    16 |    12    17    36 |    11    11    29 |
jpl | jpl 2976 |    15    19    32 |    11    23    46 |    17    18    28 |
mit | mit 2976 |     9    12    17 |    11    14    37 |    13    12    25 |

Table 5.2338.5   GPS week: 2338   Day: 5   MJD: 60615.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    15    29 |    13    19    46 |    11     7    33 |
emr | emr 2966 |    12    11    28 |    14    19    50 |    12     8    32 |
esa | esa 2976 |    17    20    49 |    13    20    57 |    15    15    33 |
gfz | gfz 2975 |    13    12    40 |    12    15    36 |    10     8    21 |
grg | grg 2975 |    11    13    22 |    14    20    42 |    11     8    26 |
igr | igr 2975 |    10    12    25 |    11    17    41 |    10     8    24 |
igs | igs 2974 |    10    12    25 |    12    17    42 |    11     7    24 |
jgx | jgx 2880 |    13    10    39 |    12    17    41 |     7     6    24 |
jpl | jpl 2880 |    17    17    29 |    13    20    49 |    13    15    26 |
mit | mit 2976 |    12    11    36 |    11    17    41 |     9     7    22 |

Table 5.2338.6   GPS week: 2338   Day: 6   MJD: 60616.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9    13    19 |    11    15    60 |    13    16    36 |
emr | emr 2966 |    16    22    29 |    12    14    63 |    14    14    36 |
esa | esa 2976 |    15    17    43 |    12    16    66 |    16    18    33 |
gfz | gfz 2976 |     7    11    21 |    11    13    48 |    11    10    27 |
grg | grg 2976 |     9    12    20 |    12    20    60 |    10    11    21 |
igr | igr 2975 |    13    17    24 |    11    13    52 |    11    13    28 |
igs | igs 2974 |    14    19    27 |    11    14    55 |    12    13    28 |
jgx | jgx 2880 |    15    23    32 |    13    18    55 |    11    12    31 |
jpl | jpl 2976 |    21    29    44 |     9    13    73 |    16    17    46 |
mit | mit 2976 |     9    11    17 |    12    21    62 |    10    12    28 |


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 6.2338   GPS week: 2338   MJD: 60610.500-60616.500

                                                         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      41     -48     -3 |      -3     20
            |      12      30      72      78      3 |       2
emr   uuuuu |      24     -15      81     138     -3 |     -10     21
            |      13      21      74      49      6 |       3
esa   uuuuu |     -11      20      -1     -14     -1 |      16     27
            |      12      12      30      52      6 |       2
gfz   uuuuu |     -19      -2     -85     -12      5 |      -5     22
            |      17      20      96     120      6 |       2
grg   uuuuu |      -8       6     -15     -50      0 |      -7     21
            |       9      14      40      58      3 |       2
igr   xxxxx |       6      10      11      49      5 |      -7     22
            |      11       9      37      46      3 |       2
irf   xxxxx |      -8       2     -22      -3      3 |      -3     21
            |       5       8       8      14      3 |       2
jgx   uuuuu |      15     -15      42     -94      2 |       1     20
            |       9      13      34      38      3 |       2
jpl   uuuuu |      -1       0      77      14     -1 |      -3     24
            |      14      23      57      58     13 |       2
mit   uuuuu |       4      15    -142      13      0 |      13     24
            |      12      18      29      36      4 |       2
ngs   uuuuu |      28      -8      -7      86     -2 |       7     21
            |      54      46     148     180      3 |       2


Table 7.2338.0   GPS week: 2338   Day: 0   MJD: 60610.500

                                                         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 |     -22     -27     -39      68      1 |      -1     15
emr   uuuuu |      42     -22      64     125     -5 |      -7     17
esa   uuuuu |       3      24      60     -76      5 |      17     24
gfz   uuuuu |     -11      31    -182      47     13 |      -7     18
grg   uuuuu |      -7      -3      65    -131     -2 |      -7     16
igr   xxxxx |      14       3      61      62      4 |      -8     19
irf   xxxxx |      -1      12     -14      -8      8 |      -6     18
jgx   uuuuu |       4      -3      73    -109      0 |       1     15
jpl   uuuuu |       3      26      54     110    -20 |      -1     22
mit   uuuuu |      21      45    -125      48      4 |      12     20
ngs   uuuuu |     -19     -75      87    -115      2 |       7     19

Table 7.2338.1   GPS week: 2338   Day: 1   MJD: 60611.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -7     -12      48     -27     -2 |       0     14
emr   uuuuu |      14      12     -15      86     -2 |      -6     16
esa   uuuuu |     -20      33      -7     -46      2 |      18     24
gfz   uuuuu |       4     -13    -152     203      3 |      -5     16
grg   uuuuu |      -8      -5      -6     -19      4 |      -6     16
igr   xxxxx |      17       7       7      50      5 |      -6     17
irf   xxxxx |     -17      -2     -20     -20      3 |      -3     14
jgx   uuuuu |      18     -22      50    -108      4 |       2     14
jpl   uuuuu |       0      20      16     -26     -8 |       0     21
mit   uuuuu |       6      27    -119     -23     -2 |      14     19
ngs   uuuuu |       5     -55     217     -31     -1 |       9     17

Table 7.2338.2   GPS week: 2338   Day: 2   MJD: 60612.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |      -7     -15      33      22     -4 |      -5     18
emr   uuuuu |      43      -2      64      92    -13 |     -11     21
esa   uuuuu |     -10      15     -16     -75      7 |      13     22
gfz   uuuuu |     -12      20    -197     -11     13 |      -9     19
grg   uuuuu |     -16      -2     -37      17      3 |     -11     19
igr   xxxxx |      20      15      27     100      9 |     -11     20
irf   xxxxx |      -7       4     -15     -15      7 |      -6     18
jgx   uuuuu |      28     -11      61     -21      8 |      -3     16
jpl   uuuuu |      13      -4     119       9    -12 |      -6     24
mit   uuuuu |     -13      17    -115      38      0 |      10     20
ngs   uuuuu |     -22     -16      85    -107     -8 |       5     19

Table 7.2338.3   GPS week: 2338   Day: 3   MJD: 60613.500

                                                         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 |     -22     -36     -24    -101     -5 |      -1     21
emr   uuuuu |      15     -13     185      97     -1 |      -8     22
esa   uuuuu |       0      33      -4      11     -1 |      18     30
gfz   uuuuu |      -9      -5    -100       6      4 |      -4     25
grg   uuuuu |     -11       7     -28     -75     -2 |      -6     23
igr   xxxxx |       1      20     -18      63      3 |      -5     25
irf   xxxxx |      -3      12     -33       1      3 |      -1     23
jgx   uuuuu |      20       2      -1     -64      4 |       3     23
jpl   uuuuu |      -1       0     143       9     -1 |      -2     26
mit   uuuuu |      11      10    -154      58      6 |      15     26
ngs   uuuuu |       1      -1     -54      79     -2 |      10     24

Table 7.2338.4   GPS week: 2338   Day: 4   MJD: 60614.500

                                                         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 |     -39      29     133     -35     -7 |      -1     21
emr   uuuuu |      25       2       9     201     -3 |     -10     22
esa   uuuuu |      -5      -2     -14      -3     -4 |      17     29
gfz   uuuuu |     -23      -6      15    -155      3 |      -3     25
grg   uuuuu |     -10      -5       1     -40      0 |      -6     23
igr   xxxxx |      -9      18      27     -18      9 |      -5     25
irf   xxxxx |      -8      -6     -18       0      0 |      -1     23
jgx   uuuuu |       7     -14      86    -117      2 |       2     23
jpl   uuuuu |      12       9      14     -12     18 |      -3     25
mit   uuuuu |       7     -13    -136     -27     -4 |      15     27
ngs   uuuuu |      41      -1    -153     270     -3 |       8     23

Table 7.2338.5   GPS week: 2338   Day: 5   MJD: 60615.500

                                                         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 |      -8     -10      -4    -119     -4 |      -5     24
emr   uuuuu |      17     -28     161     175      0 |     -13     25
esa   uuuuu |     -15      23      12      45     -7 |      15     30
gfz   uuuuu |     -35     -15      36     -49      2 |      -4     26
grg   uuuuu |      12      18     -41      11      1 |      -8     25
igr   xxxxx |       5      -5      23      93      6 |      -6     25
irf   xxxxx |     -11       5     -23      -5      3 |      -3     25
jgx   uuuuu |      20     -34      16    -112     -2 |       1     24
jpl   uuuuu |     -30      -8     144     -63      6 |      -5     25
mit   uuuuu |     -10      16    -144     -17      2 |      13     27
ngs   uuuuu |      65      40    -207     171      1 |       6     24

Table 7.2338.6   GPS week: 2338   Day: 6   MJD: 60616.500

                                                         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 |      -8      45     141    -146     -1 |      -6     24
emr   uuuuu |      14     -51     102     186      5 |     -14     25
esa   uuuuu |     -32      13     -36      45     -7 |      14     29
gfz   uuuuu |     -45     -24     -17    -129     -2 |      -3     26
grg   uuuuu |     -16      31     -56    -111     -4 |      -9     25
igr   xxxxx |      -4      10     -52      -8      1 |      -5     26
irf   xxxxx |      -8      -7     -32      23     -1 |      -2     25
jgx   uuuuu |       9     -23      11    -128      0 |       1     24
jpl   uuuuu |      -1     -43      49      67     11 |      -6     24
mit   uuuuu |      10       1    -200      12     -2 |      13     27
ngs   uuuuu |     128      52     -27     335     -4 |       5     22


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