[IGSREPORT-22176] Wk 1759 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Oct 11 06:11:40 PDT 2013


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1759   (Sep 22, 2013 - Sep 28, 2013)

Contacts: J. Griffiths (jake.griffiths at noaa.gov)
          K. Choi (kevin.choi at noaa.gov)


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:

igs1759[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1759[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1759[0-6].cls  IGS GPS clock combination summary report.
igs17597.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17597.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, GRG, MIT, and
    JPL. The other centres are excluded because of poorer consistency, they provide
    broadcast clocks, or clock corrections are not provided (SIO). The clock
    information not used is still compared to the combination for completeness. The
    value of 999999.999999 microseconds, according to the SP3 format convention,
    signifies that no clock solution is available and therefore must not be used.
    
    In general, if an AC does not contribute to the terrestrial reference frame
    (i.e. the SINEX combination), then any corresponding orbits & clocks
    contributed from that AC should not be included with weight in this
    combination. This is done to ensure a high level of consistency between the TRF
    and the orbital frame. However, there is an exception for the clocks if the AC
    is the reference center. In that case, only the clocks from that AC are
    included with weight.
    
    Starting week 1707:
      cod = cof${wwww}[0-6].[clk,snx,sp3] & cod = cof${wwww}7.[erp,sum]

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

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

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation. Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  ALL   | 30
                0  |  COD   | CHTI KOUC MOBS KOUC
                0  |  EMR   | 7 HERS
                0  |  ESA   | DRAG DRAG
                0  |  GRG   | ADIS MOBS MONP
                0  |  MIT   | 5 6 7 17 22 1 8 9 14 16 17 18 19 22 MDVJ NYAL DRAG
                0  |  MIT   | KOKB MONP NICO NYAL PDEL THU2
                1  |  ALL   | 30
                1  |  COD   | ALBH ALGO ALIC AMC2 AREQ AUCK BJFS BOR1 BRFT BRMU
                1  |  COD   | CAS1 CHTI CHUR CONZ DARW DRAO DUBO GLPS GOPE HOB2
                1  |  COD   | HOFN INVK JOZ2 KARR KOUR LAMA MAC1 MCM4 MOBS MONP
                1  |  COD   | NANO NKLG NRC1 NRMD PTBB RESO REYK RIOP SCH2 SYOG
                1  |  COD   | THU3 TLSE TOW2 TWTF USN3 WHIT WSRT XMIS YKRO
                1  |  EMR   | HERS
                1  |  ESA   | NTUS DRAG
                1  |  GFZ   | DRAG
                1  |  GRG   | BOGT BRAZ DAV1 IRKJ IRKT WUHN BOGT BRAZ DAV1 IRKJ
                1  |  GRG   | IRKT NTUS USNO WUHN
                1  |  JPL   | 9 CUSV
                1  |  MIT   | 4 9 15 17 18 19 22 24 25 27 29 2 4 17 AMC2 BRMU DARW
                1  |  MIT   | DRAO HERS HLFX HOB2 IENG KOUR MAC1 MAW1 MDVJ MIZU
                1  |  MIT   | MOBS NICO NTUS OPMT POLV PTBB SUWN SYOG TIDB TLSE
                1  |  MIT   | TNML TWTF YELL ZECK HLFX NTUS
                2  |  ALL   | 30
                2  |  COD   | ADIS ALGO ALIC AMC2 AREQ ARTU ASPA AUCK BJFS BOR1
                2  |  COD   | BREW BRFT BRMU BRST BRUX CAS1 CHPI CHTI CHUR CONZ
                2  |  COD   | DAEJ DARW DRAO DUBO GLPS GLSV GRAS GRAZ GUAT HARB
                2  |  COD   | HERS HERT HOB2 HOFN HOLB HOLM INVK KARR KIRU KOUR
                2  |  COD   | LAMA MAC1 MAG0 MAS1 MAW1 MCM4 MDVJ MIZU MKEA MOBS
                2  |  COD   | MONP NANO NICO NKLG NRC1 NRIL NRMD NYA1 ONSA OPMT
                2  |  COD   | PDEL PRDS PTBB RESO REUN REYK RIOP SCH2 SHAO SSIA
                2  |  COD   | STJO SYDN SYOG THU3 TLSE TOW2 TRO1 TSKB TWTF URUM
                2  |  COD   | USN3 WAB2 WHIT WILL WROC WSRT WTZR XMIS YKRO ZAMB
                2  |  COD   | ZECK ZIMM ADIS CONZ DAEJ HERT MOBS REYK WROC XMIS
                2  |  EMR   | HERS MCM4
                2  |  ESA   | MATE MATE
                2  |  GRG   | DAV1 IRKJ WUHN DARW DAV1 IRKJ KELY POLV WUHN
                2  |  JPL   | TIXI
                2  |  MIT   | 17 18 20 18 19 20 MDVJ MAC1 MDVJ NICO TSKB
                3  |  ALL   | 30
                3  |  COD   | ALGO ALIC AMC2 ARTU AUCK BRFT BRMU BRST BRUX CAS1
                3  |  COD   | CHTI COCO DAEJ DARW FAIR GLSV GOLD GOPE HOB2 HRAO
                3  |  COD   | IISC JOZ2 KARR KELY KOUC LAMA MAC1 MAS1 MAW1 MDVJ
                3  |  COD   | METS MIZU MOBS NICO NNOR NYA1 ONSA OPMT PDEL PRDS
                3  |  COD   | REYK SSIA STJO SYOG TLSE TSKB TWTF URUM USN3 WAB2
                3  |  COD   | WHIT WILL WSRT WTZR XMIS YKRO ZAMB ZIMM
                3  |  EMR   | THTI OPMT THTI USNO
                3  |  GRG   | DAV1 IRKJ KELY NYA1 POLV THTI USNO WUHN ADIS DAV1
                3  |  GRG   | DRAG IRKJ KELY NYA1 NYAL POLV THTI WUHN
                3  |  MIT   | 16 17 19 27 17 DAV1 NICO NRC1 DAV1 MOBS NRC1 NTUS
                4  |  ALL   | 30
                4  |  COD   | AUCK CHPI DARW FLRS HOLB INVK JOZ2 KARR MAW1 MDVJ
                4  |  COD   | MOBS NKLG REYK SCH2 USN3 WTZR XMIS ZAMB FLRS XMIS
                4  |  EMR   | 5 12 15 28 HERS
                4  |  GRG   | DAV1 HYDE IRKJ KELY TRO1 WUHN DAV1 HYDE IRKJ KELY
                4  |  GRG   | TRO1 WUHN
                4  |  JPL   | 2 5 12
                4  |  MIT   | 3 6 7 10 14 15 17 18 19 21 22 24 26 27 2 3 6 7 10
                4  |  MIT   | 11 14 15 17 18 19 21 22 24 26 27 DAV1 STJO DARW DAV1
                4  |  MIT   | HYDE NTUS STJO TIDB TSKB WROC
                5  |  ALL   | 30
                5  |  COD   | FLRS
                5  |  EMR   | HERS WUHN WUHN
                5  |  GFZ   | HNLC
                5  |  GRG   | MONP NYA1 NYAL DAV1 HYDE IRKJ MONP NYA1 NYAL
                5  |  JPL   | IISC
                5  |  MIT   | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
                5  |  MIT   | 21 22 23 24 25 26 27 28 29 31 32 1 2 3 4 5 6 7 8
                5  |  MIT   | 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
                5  |  MIT   | 26 27 28 29 31 32
                6  |  ALL   | 30
                6  |  COD   | ALGO ALIC ASPA AUCK BRFT BRMU CAS1 CHTI DARW DGAR
                6  |  COD   | GUAT HERS HOB2 HRAO ISPA KARR KOKB KOUR MAC1 MAW1
                6  |  COD   | MOBS NICO NRC1 NRMD OPMT PDEL REUN REYK SYDN SYOG
                6  |  COD   | TOW2 WROC XMIS ZECK XMIS
                6  |  EMR   | 5 7 12 HERS DAEJ HERS OPMT
                6  |  GFZ   | HNLC
                6  |  GRG   | DAEJ DAV1 IRKJ NYA1 NYAL USNO DAEJ DAV1 IRKJ NYA1
                6  |  GRG   | NYAL RAMO USNO WUHN
                6  |  JPL   | 5 6 CUSV
                6  |  MIT   | 5 6 8 11 14 19 21 22 29 3 6 7 9 12 13 17 19 22 24
                6  |  MIT   | 25 26 28 31 32 DAV1 MDVJ OPMT USNO ZECK ALGO AMC2
                6  |  MIT   | BRMU CAS1 CONZ CRO1 DARW DAV1 DUBO GOPE HOB2 HYDE
                6  |  MIT   | IENG KOKB KOUR MAC1 MATE NTUS PRDS SFER SPT0 STR1
                6  |  MIT   | SYOG TIDB USN3 WSRT ZECK

    
 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  |  GRG   | ~22:28 | ~ 0.15 ns
                0  |  MIT   | ~04:09 | ~ -0.04 ns
                1  |  GRG   | ~12:08 | ~ 0.14 ns
                1  |  MIT   | ~12:00 | ~ -0.11 ns
                2  |  GRG   | ~23:20 | ~ -0.15 ns
                3  |  COD   | ~13:10 | ~ -0.21 ns
                3  |  GRG   | ~04:36 | ~ -0.15 ns
                3  |  MIT   | ~23:25 | ~ -0.19 ns
                4  |  GRG   | ~19:05 | ~ -0.18 ns
                5  |  COD   | ~16:20 | ~ -0.15 ns
                5  |  GRG   | ~14:53 | ~ 0.13 ns
                6  |  GRG   | ~22:27 | ~ -0.16 ns
                6  |  MIT   | ~00:35 | ~ -0.16 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. 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.

 8. Small rotations were applied to all the AC orbit and ERP values in order to
    align them to the current IGS reference frame. These RX, RY and RZ rotations
    were estimated in the IGS SINEX combination process, performed by the IGS
    Reference Frame Coordinator at the Institut Geographique National (IGN).
    Starting on 19-Aug-2012 (GPS Week 1702; MJD=56158), ACs began contributing
    products based on 1d SINEX integrations. As a result, the SINEX combinations
    are now done daily instead of weekly, and the associated daily rotations are
    applied here to the orbits and ERPs. The estimated 7 transformations, from
    which only the 3 rotations are applied to the orbit and ERP values, are:
    
            |     |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre | Day |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+-----+---------------------------------------------------
       COD  |   0 |   -1.2    -.3    -.2     -49     51      1    -.07
       EMR  |   0 |    3.7    9.4   13.3      -4     16    -10    -.29
       ESA  |   0 |   -1.8    8.3   -3.1      -9    -25     84    -.31
       GFZ  |   0 |     .2     .7    -.8     -16     -4     22    -.64
       GRG  |   0 |    7.2    1.6     .5     -27     27    -21    -.15
       JPL  |   0 |   -2.9    5.1    6.2     -63     12    -16    -.38
       MIT  |   0 |    3.8    1.2    6.6     -24     33    -41     .0 
       SIO  |   0 |    1.6    1.7   16.8      46     32     10    -.38

       COD  |   1 |    -.3     .6    -.1     -38     42     13    -.08
       EMR  |   1 |    1.7    9.4   11.9       3     17     -4    -.28
       ESA  |   1 |     .2    2.7   -3.3     -15    -16     37    -.28
       GFZ  |   1 |     .2     .6    -.5     -11    -10     17    -.67
       GRG  |   1 |    2.8    2.0   -5.7     -27     45     -8     .06
       JPL  |   1 |   -5.6    -.9    8.5     -61    -20      3    -.14
       MIT  |   1 |     .3    2.8    8.0     -17     35    -14    -.09
       SIO  |   1 |    2.8    3.9   23.5      45     37    -28    -.30

       COD  |   2 |     .1    -.2     .0     -48     36      0     .06
       EMR  |   2 |    -.9    2.1    3.9       2     15      1    -.22
       ESA  |   2 |   -2.0    2.6   -4.9      -2      0     34    -.17
       GFZ  |   2 |     .4     .5   -1.0      -2    -23     25    -.25
       GRG  |   2 |    4.4    3.3    4.8     -30     56    -10     .13
       JPL  |   2 |    -.2    8.1   10.2     -67    -28     47     .16
       MIT  |   2 |    -.2   -2.6    9.1       0     35    -45    -.01
       SIO  |   2 |    -.1    4.5   13.3      39     44    -31    -.11

       COD  |   3 |    -.2    -.4    -.5     -60     27      3     .01
       EMR  |   3 |   -2.8    4.5    4.6       0     14     -9    -.19
       ESA  |   3 |     .0     .9    1.1      -1    -27     28    -.14
       GFZ  |   3 |     .5     .5   -1.0      -5    -13     27    -.44
       GRG  |   3 |    1.3    3.2   -4.0     -41     69    -29    -.10
       JPL  |   3 |   -5.3    4.4    7.3     -66      2      3    -.10
       MIT  |   3 |   -1.1     .6    7.9      -5     39    -42    -.04
       SIO  |   3 |     .0    3.9   20.8      46     56    -43    -.11

       COD  |   4 |    -.3     .0    -.2     -31     37     -3     .14
       EMR  |   4 |   -1.5    -.3    5.2      -5     19    -21     .02
       ESA  |   4 |    -.8    3.4   -6.2      -6      0     28    -.01
       GFZ  |   4 |     .2     .5   -1.2      -9    -15     13    -.14
       GRG  |   4 |    2.0    1.4   -3.7     -26     33    -13     .09
       JPL  |   4 |    3.4    6.1    6.5     -68      5     -6     .01
       MIT  |   4 |    -.8    1.8    9.4       8     43    -44     .16
       SIO  |   4 |   -1.8     .1   15.3       0     72    -40     .03

       COD  |   5 |    -.6     .1    -.4     -38     38     19    -.14
       EMR  |   5 |     .1    8.6    1.9       2     10    -12    -.11
       ESA  |   5 |    1.9    2.1     .7      -5    -19     31    -.05
       GFZ  |   5 |     .4     .6   -1.1     -14    -18     19    -.25
       GRG  |   5 |    3.2    1.1   -2.2     -58     44     20    -.03
       JPL  |   5 |   -1.5    7.9    8.4     -79     35     24     .32
       MIT  |   5 |   -1.5    4.9    9.5      -7     40    -34    -.05
       SIO  |   5 |     .8    3.3    8.8      38    -15    -13    -.33

       COD  |   6 |    -.7     .0    -.3     -57     33     23    -.01
       EMR  |   6 |    -.9   11.4   -1.0      -4     14    -21    -.09
       ESA  |   6 |    -.2    6.3   -9.4      -4      8     54    -.11
       GFZ  |   6 |     .1     .6   -1.1     -22    -19     23    -.14
       GRG  |   6 |    1.1    7.1   -3.6     -34     31     -4     .40
       JPL  |   6 |   -1.2    2.0    6.9     -67     18     -6     .23
       MIT  |   6 |   -1.2    7.1    6.1     -24     32    -20    -.05
       SIO  |   6 |   -1.2    1.4   16.0       5     63      3    -.14


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

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


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 1.1759.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1759.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 2.1759.[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 3.1759.[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 5.1759.0-6). 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 1759 summary.                       (Sep 22, 2013 - Sep 28, 2013)

Table 1.1759.a   GPS week: 1759   MJD: 56557.000-56563.000

         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  260|    0     0     1    14    16    -6   .14    9    9 |    -803    -103     19    137
        |    1     0     0    10    12     8   .04           |     385     436
emr   79|   -1     0     1    -7   -15     2   .09   15   15 |    3473    -459     26    137
        |    1     1     1     7    13    14   .02           |    1171    1120
esa  150|    0     0     0    -1    -4     8  -.22    6    6 |   -1054     747     11    115
        |    0     0     1     8    16    16   .02           |     875    1392
gfz  195|   -1     1     0    -8   -12    10   .08   11   10 |     -84      77     14    113
        |    1     1     1    10    11     9   .02           |     435     787
grg  190|    3     1     1     8    11    -4   .37   14   12 |    -179      35     19    281
        |    0     1     2    14    21    14   .06           |     494     750
igr  n/a|    0     0     0    11    12     4  -.40    5    5 |   -8403    -139     15    102
        |    0     0     0    18    17    10   .05           |     703    1016
jpl   80|    0     0    -2   -14     4     3   .12   14   14 |    2173    -401     21    135
        |    2     1     0    20    16    10   .02           |    1004    1042
mit  297|    0    -2    -1   -22    -6   -22  -.17   11   10 |      30    -142     38    276
        |    0     1     1    30    35    25   .02           |     125     210
sio  449|    0     0     0    21    55   -42  -.81   20   19 |     ---     ---    ---    ---
        |    0     1     1    23    52     8   .02           |     ---     ---


Table 1.1759.b   GPS week : 1759   MJD: 56557.000-56563.000   

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

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



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         result of the combination after the AC orbits were pre-aligned using
         the SINEX rotations from above. Prior to Wk 1702, AC ERP rotations
         used in the pre-alignment were also displayed.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1759.0   GPS week: 1759   Day: 0   MJD: 56557.000                            

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  263|    0     0     0     4    13    -6   .15   11   11 |   -1553     587     23    125
emr   80|    1     1     2    -7   -19   -22   .12   15   15 |    4986   -1241     43    140
esa  150|    0     0     0     2    14    40  -.23    6    6 |    -889     -17     13    105
gfz  198|   -3     0    -1   -19    -1     8   .06   11   10 |    -185    -133     18     84
grg  192|    3     1     2     8     1   -20   .29   14   12 |      99    -300     29    130
igr  n/a|    0     0     0    -3     0    -4  -.44    5    5 |   -7978    -941     15     89
jpl   80|    0     0    -1     9   -13     7   .09   14   14 |    3472   -1143     29    118
mit  298|    0    -2    -2   -39   -10   -54  -.14   12   11 |     221    -153     40    260
sio  457|    0     0    -1    15    29   -41  -.81   20   18 |     ---     ---    ---    ---

Table 2.1759.1   GPS week: 1759   Day: 1   MJD: 56558.000                            

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  263|    0     0     1    17    -4     7   .11    9    9 |   -1019     199     20    133
emr   80|    0     0     0   -13   -33   -10   .09   15   15 |    3099    1413     15    131
esa  150|    0     0     1   -15   -20    -9  -.19    6    6 |   -1959    1604      8    123
gfz  194|   -2     3     0   -14   -25     2   .06   11   11 |    -397     275     12    118
grg  192|    1     0    -1    19    49   -19   .33   14   12 |    -362    -159     13    291
igr  n/a|   -1     0     1    -3     9   -11  -.43    5    5 |   -9553    1541     16    110
jpl   80|    2     0    -2     2     0    -5   .12   14   14 |    1617    1353     16    135
mit  298|    0    -2    -1    -8    46    28  -.15   10    9 |      77    -419     32    420
sio  459|    0     1     0    48    89   -42  -.81   19   17 |     ---     ---    ---    ---

Table 2.1759.2   GPS week: 1759   Day: 2   MJD: 56559.000                            

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  261|   -1     0     0     2    27     0   .12    8    8 |    -494    -411     17    148
emr   80|   -1     0     2    -4    -6     3   .09   15   15 |    4485   -1310     14    126
esa  150|    0     1     0     0     7    -3  -.22    6    6 |   -1559    1337     10    127
gfz  196|   -1     1     0   -21   -10     6   .10   10   10 |     590   -1383     12    111
grg  189|    3     0     4    32    13     9   .33   13   12 |     281    -658     16    432
igr  n/a|    0     0     0    19     9     3  -.44    5    5 |   -7561   -1023     16     95
jpl   80|    0     0    -2   -11    -2    13   .10   13   13 |    3357   -1446     17    128
mit  298|    0    -3    -1    -9   -35   -18  -.17   10    9 |      98    -344     26    304
sio  461|    0     0     0    38    33   -54  -.82   19   18 |     ---     ---    ---    ---

Table 2.1759.3   GPS week: 1759   Day: 3   MJD: 56560.000                            

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  263|    0     0     2    12    26    -4   .13    8    8 |    -622    -301     21    137
emr   79|   -2     0     0   -10     8     1   .11   16   16 |    4171   -1407     16    179
esa  150|    0     0     0     8   -29    13  -.21    5    5 |   -1922    2569     10    127
gfz  196|    0     2     1     3     7    26   .08   11   11 |    -609     960     12    167
grg  190|    3     1     0    -4    24   -15   .36   12   12 |     168    -633     15    521
igr  n/a|    0     0     0    47    48    16  -.43    6    5 |   -8053    -700     17    142
jpl   80|    0     1    -3   -18    27    11   .11   14   14 |    2369    -883     15    173
mit  298|    0    -3    -2   -30   -25   -35  -.18   10    9 |     -72    -161     34    295
sio  451|    0     0     0    25    66   -42  -.81   19   20 |     ---     ---    ---    ---

Table 2.1759.4   GPS week: 1759   Day: 4   MJD: 56561.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  255|    1     1     0    16     4   -11   .22   12   12 |    -426    -625     22    140
emr   80|   -3    -2     3   -15   -24    16   .08   15   15 |    3278    -935     41    135
esa  150|    0     0     0   -10   -10     4  -.22    5    5 |      35   -1196     12     99
gfz  196|    0     2    -1    -1   -22    14   .08   10   10 |     333       1     20    120
grg  191|    2     2     1    16     9     0   .43   14   13 |    -141     263     26    144
igr  n/a|    0     0     0     5    -3    19  -.32    5    5 |   -8199    -362     16     94
jpl   80|   -1     0    -1   -16     7     0   .16   14   14 |    2064    -727     30    150
mit  298|    0    -2     0     5    27   -25  -.16   10    9 |     -23     -42     37    272
sio  437|    0     0     0     1   124   -44  -.78   19   20 |     ---     ---    ---    ---

Table 2.1759.5   GPS week: 1759   Day: 5   MJD: 56562.000                            

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  259|    0     1     2    34    21   -20   .12    8    8 |    -807     203     16    145
emr   80|   -1     0     2    -9   -10    12   .08   15   15 |    2749    -529     17    132
esa  150|    0     0     0    -1     7     1  -.22    5    5 |     175    -698     10    123
gfz  195|    0     2    -1   -10   -16    17   .11   11   10 |      75     -86     11    101
grg  191|    4     3     0    -6     1    17   .45   15   13 |    -115     213     15    311
igr  n/a|    0     0     0     2     6     1  -.35    5    5 |   -8312    -544     14     90
jpl   80|   -2    -3    -3   -55    24     9   .14   13   13 |    1706    -727     16    121
mit  298|    0     0     0     7   -54   -31  -.18   12   11 |      74    -106     63    144
sio  434|   -1     2     0    37   -36   -43  -.77   20   21 |     ---     ---    ---    ---

Table 2.1759.6   GPS week: 1759   Day: 6   MJD: 56563.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  257|    2     1     1    17    29    -7   .11    9    9 |    -702    -377     19    133
emr   80|   -2     0     0     6   -20    14   .06   15   15 |    1543     791     42    119
esa  150|    1     0     1     6     3    12  -.23    6    6 |   -1264    1633     14    105
gfz  195|   -1     0    -3     3   -15    -1   .10    9    9 |    -401     910     19     93
grg  191|    3     2     0    -3   -18     0   .38   13   12 |   -1188    1524     25    141
igr  n/a|    0     0     0     9    19     6  -.37    5    5 |   -9166    1053     14     96
jpl   80|   -4     0    -2    -8    -9   -15   .14   13   13 |     629     766     30    126
mit  295|    0    -1     0   -80     5   -22  -.21   13   12 |    -160     229     37    238
sio  447|    0     1     1   -18    81   -26  -.84   21   22 |     ---     ---    ---    ---

       
       
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 3.1759.0   GPS week: 1759   Day: 0   MJD: 56557.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    9   12    6    7   11    8    9   12   13    3 |    25   21   16   19   24   13   22   16   12    17
   2  |   13   14    6   10   15    4   16   14   17    5 |    26   19   16   21   26   13   20   22   15    18
   3  |   12   12    4   11    9    5   11   16   18    4 |    29   22   19   30   26   18   26   23   21    22
   4  |    8   10    5    9    8    4   12   12   22    3 |    19   19   13   15   15   12   21   14   15    13
   5  |    9   13    6    9   14    5   16   10   18    4 |    22   21   14   17   27   13   22   16   11    16
   6  |   10   11    4   10   15    6    9    9   20    4 |    27   25   24   30   28   22   28   24   21    25
   7  |    9   21    5   11   11    6   17   14   18    5 |    24   26   19   23   29   18   25   18   15    20
   8  |    7   10    5    9   15    5   10   10   20    3 |    21   22   17   18   24   13   23   22   18    18
   9  |    5    8    5    9    7    4    9    9   15    3 |    20   21   15   19   21   14   22   19   13    17
  10  |    7   10    6   11   11    5    9   15   34    4 |    33   34   31   33   34   30   35   29   37    31
  11  |   10   14    8    7   16    5   10   11   13    4 |    42   38   34   40   47   32   39   38   34    37
  12  |    9   18    8   16   19    6   18    9   18    5 |    27   27   18   27   31   18   28   23   18    21
  13  |    7   15    4   10   10    3   13   10   15    4 |    28   32   25   30   33   24   32   26   23    27
  14  |    9   14    6   10    9    6   15   18   16    4 |    25   29   24   30   29   23   30   35   24    26
  15  |   10   15    6    9   11    4   17   13   25    4 |    33   32   30   34   35   27   32   30   25    30
  16  |   20   20    7   15   18    4   17   17   18    6 |    21   24   17   25   28   14   23   21   19    17
  17  |   14   18    7    9   11    5   17   11   38    5 |    28   28   22   30   30   21   28   30   34    25
  18  |   10   16    6   11   14    4   16   17   13    5 |    19   25   13   18   23   11   26   16   12    15
  19  |   10   17    6   14   10    4   15   15   37    5 |    29   30   25   36   30   25   32   25   39    27
  20  |    9   15    5   11   12    4   15    6   12    4 |    25   22   16   21   27   13   22   16   13    18
  21  |   11   11    7    9   37    5    9   11   11    6 |    23   20   15   21   33   12   20   17   11    18
  22  |    8   14    5   12   14    6   15   17   10    4 |    15   23   11   19   26    9   21   20   11    14
  23  |    9   19    6   13    9    5   15    9   29    4 |    26   26   19   25   23   18   28   22   24    21
  24  |   12   16    6   11   11    7   13   10   22    4 |    22   23   16   21   25   15   24   20   26    18
  25  |   12   16    8   11   14    6   13    7   13    4 |    26   31   19   19   27   17   31   18   19    21
  26  |    7   11    6   10   11    4   10    9   13    3 |    21   22   21   26   28   20   24   21   16    22
 X27  |    9   11    5    9  ---    5   15   17   21    5 |    37   35   32   34  ---   32   42   35   30    34
  28  |   20   16    6   13   17    3   16   10   12    5 |    28   23   18   28   31   14   23   23   14    20
  29  |   11   16    6   10   14    5   16   10   31    4 |    36   39   30   31   34   30   38   32   31    31
 X30  |   15  ---  ---  ---  ---   17   19  ---  ---   17 |    32  ---  ---  ---  ---   20   26  ---  ---    25
  31  |    9   18    6   15   19    5   17   18    6    5 |    22   26   17   26   38   16   27   26   14    21
  32  |    8   12    6    9    8    6   10    9   16    3 |    20   23   14   16   15   13   23   18   18    16
------+---------------------------------------------------+----------------------------------------------------
 RMS  |   11   15    6   11   14    5   14   12   20      |T   25   26   20   25   28   18   26   23   20    21
 WRMS |   11   15    6   10   12    5   14   11   18      |NE  25   26   20   25   28   18   26   23   20    21
 MEDI |    9   14    6   10   11    5   15   11   18      |MD  25   25   18   25   28   17   26   22   18    21

Table 3.1759.1   GPS week: 1759   Day: 1   MJD: 56558.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    8   12    5    9   10    8   11   10   11    3 |    27   26   21   23   25   19   25   22   18    22
   2  |    8   14    6   11   13    5   18    9   18    4 |    28   28   24   27   29   20   27   27   21    25
   3  |   10   10    5   10    7    5    8   13   17    3 |    26   25   20   26   23   19   23   22   17    21
   4  |    7   12    7   10   11    5   11   10   19    3 |    24   27   17   19   19   16   22   18   18    18
   5  |    8   17    6   10   15    5   18    8   13    4 |    26   28   21   26   33   19   25   22   20    23
   6  |    7   12    6   11    7    3    8    8   19    3 |    25   23   21   25   22   19   21   20   18    20
   7  |    9   21    5   11   14    4   18   10   15    5 |    35   37   30   36   40   29   33   33   30    32
   8  |    6   12    4   11   11    5   10    8   18    3 |    25   28   22   24   25   19   24   25   22    23
   9  |    7    9    4   10    8    4    9    6   12    3 |    23   25   20   22   22   18   22   22   18    20
  10  |    7   11    5    9   10    4    9    9   32    3 |    31   37   30   31   33   29   32   33   38    31
  11  |    9   13    7   10   17    5    9   10    9    4 |    36   32   30   32   41   26   31   28   24    31
  12  |   11   19    6   12   13    6   19   10   18    5 |    33   31   22   29   31   20   27   25   20    25
  13  |    8   14    4   10   11    4   14    7   16    3 |    29   36   26   32   34   25   31   25   21    27
  14  |   10   16    6   13   11    5   16   14   18    4 |    26   32   24   32   26   22   29   29   22    25
  15  |   10   18    5   11   11    4   17   11   25    4 |    30   31   28   33   31   25   29   29   27    28
  16  |   11   19    5   13   13    5   17   12   19    5 |    26   27   21   29   27   17   23   24   22    22
  17  |   11   18    5   11   11    4   16   13   35    4 |    30   30   22   30   26   21   28   27   29    24
  18  |   10   19    8   15   16    5   19   14   13    5 |    21   26   19   26   28   14   24   23   15    20
  19  |   12   17    7   10   10    4   14   10   36    4 |    27   29   23   27   28   20   27   20   34    23
  20  |    8   14    5   10   15    4   16    5   12    4 |    28   26   21   28   31   20   25   22   16    23
  21  |    8   14    9    8   32    5   11    9    8    5 |    29   25   22   26   39   17   23   21   14    23
  22  |   12   16    6   15   15    5   16   14   14    5 |    22   26   18   27   31   15   24   23   15    20
  23  |    8   17    5   12   12    5   16    6   29    4 |    27   31   23   29   26   22   27   23   26    24
  24  |   11   16    5   13   11    6   12    8   18    4 |    29   27   24   26   29   21   25   22   25    24
  25  |    8   14    6    9   12    6   12    5   12    3 |    27   31   21   21   27   19   30   21   22    23
  26  |   10   13    6   11   12    6   11    7   11    4 |    25   27   22   25   23   22   19   21   18    21
 X27  |   12   14    6   10  ---    7   13   13   19    5 |    31   28   26   25  ---   25   33   24   18    26
  28  |    9   15    5   13   13    4   14    8   13    4 |    24   27   20   27   31   19   25   24   18    22
  29  |   10   17    7   11   11    5   18   10   30    4 |    29   32   24   28   26   22   28   26   24    24
 X30  |    9  ---  ---  ---  ---   18   15  ---  ---   12 |    42  ---  ---  ---  ---   21   29  ---  ---    34
  31  |    9   19    6   17   20    4   19   12    9    5 |    25   29   19   28   36   18   26   21   14    22
  32  |   10   10    5    8   12    5   10    7   14    3 |    26   22   20   21   23   18   23   22   19    21
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    9   15    6   11   14    5   14   10   19      |T   27   28   22   27   28   20   26   24   21    23
 WRMS |    9   15    6   11   12    5   14    9   17      |NE  27   28   22   27   28   20   26   24   21    23
 MEDI |    9   14    6   11   12    5   14   10   17      |MD  27   28   22   27   28   20   25   23   20    23

Table 3.1759.2   GPS week: 1759   Day: 2   MJD: 56559.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    7   14    5    8   10    6   12   10   11    3 |    16   16   11   17   20    9   19   14   12    13
   2  |    8   16    5   12   15    4   15    8   21    4 |    17   19   13   21   21    9   15   18   19    14
   3  |    8   10    5   12   11    6   10   11   17    3 |    20   19   16   22   22   13   20   17   14    17
   4  |    6   15    6    9    9    6    9   11   22    3 |    17   21   14   14   11   11   14   15   18    13
   5  |    9   15    5    9   13    6   16    8   13    4 |    23   27   20   26   29   15   24   23   19    22
   6  |    7   10    6   12    9    4    8    5   19    3 |    18   19   18   21   20   17   21   18   17    18
   7  |    9   24    6   10   15    5   19   10   16    5 |    27   30   23   25   34   20   27   23   22    23
   8  |   11   10    5   10   12    6   11    8   19    3 |    20   19   16   18   20   11   19   21   19    17
   9  |    6   10    4    9    8    5    9    6   10    3 |    17   20   14   17   20   12   18   17   13    15
  10  |    6   11    6    9   10    4    8    8   31    3 |    31   31   28   29   27   26   28   33   37    29
  11  |   10   13    7    8   17    5    9   10   11    4 |    33   32   30   34   40   27   33   29   26    31
  12  |    8   20    8   10   17    6   17   11   17    5 |    22   25   16   25   29   14   20   22   17    19
  13  |    7   15    6    9   10    3   13    7   16    3 |    22   31   21   26   30   20   28   21   19    23
  14  |    9   15    5   12    9    4   15   12   18    4 |    20   25   20   27   23   17   22   22   19    20
  15  |    9   16    5    8   10    3   18   11   24    4 |    28   27   23   28   29   21   26   26   21    25
  16  |   10   20    6   13   15    3   17   13   18    5 |    19   25   14   20   25   11   20   16   16    15
  17  |    7   17    6   11    9    5   16   14   26    4 |    23   25   20   28   23   15   25   25   22    21
  18  |    7   16    7   14   14    3   15   13   14    4 |    15   22   14   17   22   11   21   16   15    15
  19  |   11   15    7   10   12    5   14   12   37    4 |    22   24   22   26   25   19   27   19   35    21
  20  |   11   12    6   13   12    4   15    7   12    4 |    23   19   15   23   23   12   18   15   13    17
  21  |    6   12    6    8   17    4   11   12   11    4 |    18   17   14   17   26   10   15   14   12    15
  22  |    6   15    5   11   14    3   12   11   11    4 |    13   20   11   17   23   10   18   12   11    13
  23  |    7   17    7   10    9    6   14    8   30    4 |    20   26   16   23   21   16   23   19   23    18
  24  |   10   15    5    9   10    6   13   10   14    4 |    19   21   16   18   23   11   22   18   17    17
  25  |    9   25    7    9   12    6   10    6   13    4 |    20   35   16   18   25   13   24   17   17    19
  26  |    7   11    6    7   10    6    8    7   10    3 |    17   20   18   19   24   17   20   18   16    17
 X27  |   10   10    6   12  ---    5   13   11   18    4 |    32   28   28   29  ---   27   36   27   24    29
  28  |    8   16    4   11   15    5   14    8   13    4 |    16   19   16   23   27   11   19   19   13    16
  29  |   12   17    7   10   11    5   17   11   28    4 |    28   32   25   27   26   23   31   25   27    25
 X30  |   20  ---  ---  ---  ---   46   32  ---  ---   25 |    54  ---  ---  ---  ---   16   19  ---  ---    36
  31  |    8   16    5   14   19    6   15   13   11    5 |    20   23   16   23   34   14   23   18   12    19
  32  |    9   10    6    9    9    6    9   10   13    3 |    19   18   14   19   15   12   19   16   15    15
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    8   15    6   10   13    5   13   10   19      |T   22   23   18   22   24   15   22   19   18    19
 WRMS |    8   15    6   10   12    5   13    9   18      |NE  22   23   18   22   24   15   22   19   18    19
 MEDI |    8   15    6   10   11    5   13   10   16      |MD  20   23   16   23   23   14   21   18   17    18

Table 3.1759.3   GPS week: 1759   Day: 3   MJD: 56560.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |   11   13    6    9   10    8   11   13   14    4 |    21   21   15   15   21   10   20   15   14    14
   2  |    6   16    5   11   15    3   17    7   20    4 |    19   21   17   21   26   14   20   21   21    17
   3  |    9   10    3   11   10    8   11    8   18    3 |    21   19   18   21   24   15   22   18   17    18
   4  |    6   14    6   10   12    5    9   12   20    4 |    16   20   12   15   15    9   14   16   16    11
   5  |    6   17    5    8   12    6   19    8   12    4 |    21   25   17   22   29   14   24   21   15    19
   6  |    9   10    5   13    8    6   10    6   20    3 |    23   19   21   21   25   19   22   20   19    20
   7  |    7   21    4   12   11    5   18    8   12    4 |    26   23   17   24   30   14   20   20   15    19
   8  |    9   13    4   14   14    8   11   12   20    4 |    18   22   15   20   23   11   19   22   20    16
   9  |    8   14    4   13   11    6   10    9   14    3 |    17   21   14   20   22   11   19   18   13    15
  10  |    6   11    6    9   13    4   10   11   32    3 |    46   48   45   47   45   42   45   44   50    45
  11  |    6   12    7    9   15    5    7   10   13    3 |    35   38   34   35   45   31   38   34   29    35
  12  |    9   20    6    9   14    5   19   12   17    5 |    27   24   18   23   29   15   22   23   18    20
  13  |    6   15    4   11   11    4   13    6   18    3 |    29   29   24   30   33   23   28   24   21    25
  14  |    8   15    5   12    9    5   15    8   19    4 |    23   25   25   27   29   23   25   26   20    24
  15  |   11   19    6   13    8    5   20   10   24    5 |    32   29   27   35   31   25   29   29   25    28
  16  |   10   17    5   12   15    4   16   12   19    4 |    19   18   14   18   26   11   18   16   17    14
  17  |   11   18    6    9   10    6   16   16   25    5 |    24   26   21   26   27   19   27   27   22    22
  18  |    7   19    6   15   14    5   16   11   12    4 |    16   23   13   18   23    9   21   14   14    13
  19  |    9   15    8   10    8    5   14   10   36    4 |    24   26   25   26   27   21   27   21   35    23
  20  |    8   15    5   11   13    4   16    8   12    4 |    25   21   15   22   25   12   20   16   12    17
  21  |    7   12    4    8   19   10   15   14   15    4 |    20   21   14   17   26   12   20   16   12    15
  22  |    8   17    6   14   13    4   13   10   12    4 |    14   20   12   18   25   11   19   13   11    13
  23  |    8   18    5   11    9    5   15    8   29    4 |    24   25   17   23   23   15   24   19   22    18
  24  |    7   13    4    9    7    7   12    9   13    3 |    21   19   16   17   25   14   24   19   15    17
  25  |    8   22    8    8   13    4   10    6   12    4 |    20   33   20   19   26   12   23   16   17    19
  26  |    8   14    5   10    9    5   12    5   11    3 |    23   21   19   26   26   20   20   21   18    20
 X27  |    9   10    6   12  ---    6   15   11   17    4 |    28   32   28   28  ---   27   38   30   26    29
  28  |    9   17    5   16   15    7   14    8   14    4 |    18   20   17   27   29   17   20   20   15    18
  29  |   11   17    5    7   10    5   16   10   27    4 |    31   34   27   27   29   25   31   28   27    27
 X30  |    9  ---  ---  ---  ---   26   17  ---  ---   13 |    30  ---  ---  ---  ---   21   23  ---  ---    26
  31  |    8   16    4   13   15    5   17   10   13    4 |    21   20   13   21   33   12   19   17   11    17
  32  |    8   10    5    8   12    6   10    9   13    3 |    19   21   13   15   16   11   20   16   16    14
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    8   16    5   11   12    6   14   10   19      |T   23   24   19   23   27   17   23   21   19    20
 WRMS |    8   16    5   11   12    5   14    9   20      |NE  23   24   19   23   27   17   23   21   19    20
 MEDI |    8   15    5   11   12    5   14   10   17      |MD  21   22   17   22   26   14   22   20   17    18

Table 3.1759.4   GPS week: 1759   Day: 4   MJD: 56561.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |   11   12    7   10   10    8   13   13   13    4 |    22   20   16   16   22   13   21   17   13    16
   2  |    7   16    6   11   13    4   18    8   22    4 |    24   26   23   30   27   20   24   27   24    23
   3  |   14   10    3   10   12    4   11    8   17    3 |    25   21   18   23   24   16   22   18   16    19
   4  |    7   16    6    8   16    4   10    9   21    4 |    19   24   14   14   18   13   18   16   17    14
   5  |   12   15    6   11   14    6   18   11   13    4 |    23   21   14   19   29   13   21   19   12    17
   6  |   13   11    4   11   12    3    9    7   15    3 |    21   19   17   21   22   15   20   18   14    17
   7  |    8   17    5   10   13    4   17    9   13    4 |    25   23   18   22   31   16   22   19   14    19
   8  |   12   16    6   11   16    7   11   12   20    4 |    24   28   18   20   27   15   20   24   23    19
   9  |   10   17    6   11   14    6    9    9   11    4 |    21   26   15   17   24   12   20   19   14    16
  10  |    5   10    5   10   12    4   10   11   30    3 |    44   44   41   41   45   41   45   41   47    41
  11  |    9   12    5    9   13    6   10    8    9    3 |    34   34   30   33   41   29   33   31   26    32
  12  |   13   18    7   11   14    4   20   16   18    5 |    28   28   21   25   30   19   25   25   20    22
  13  |   10   14    5    8   12    3   13    6   19    3 |    25   30   19   25   31   19   27   22   18    22
  14  |   16   13    6    9   11    5   13   10   19    4 |    29   28   21   24   25   20   27   24   20    22
  15  |   11   17    5   11   18    4   19   11   25    5 |    29   28   23   27   37   24   29   27   22    25
  16  |   15   20    4   12   15    4   18   11   18    5 |    24   23   15   21   24   13   21   16   16    16
  17  |   11   17    8   12   11    3   17   14   25    5 |    28   27   24   33   27   22   28   29   22    25
  18  |   13   18    5   13   16    4   18   11   13    5 |    21   24   16   17   26   13   23   15   14    16
  19  |   14   15    6   10    9    4   13    7   37    4 |    24   25   21   24   25   19   27   19   35    21
  20  |    8   15    6   11   12    3   17    7   12    4 |    23   22   14   22   26   14   20   17   11    17
  21  |    9   10    5    8   21    3   12   13   14    4 |    21   21   16   20   28   13   18   17   15    16
  22  |   23   15    5   11   17    7   13   12   13    5 |    26   20   13   18   26   13   18   14   12    14
  23  |   12   15    5   10   10    5   16    8   30    4 |    25   25   15   21   22   15   24   19   21    18
  24  |   13   13    5    9   13    5   15   11   10    4 |    22   20   16   18   27   15   22   16   13    17
  25  |   11   17    4    8   13    5   10    7   14    4 |    25   32   20   23   24   19   27   19   20    21
  26  |    9   12    5    9    9    2   12    8   11    3 |    20   20   16   22   21   16   17   20   15    17
 X27  |   11   10    4   12  ---    7   14   10   13    4 |    26   29   23   27  ---   25   33   26   19    25
  28  |   11   17    5   13   15    4   18   10   14    5 |    25   22   19   26   33   16   21   22   15    20
  29  |   14   17    5   11   11    5   16    9   30    4 |    32   34   25   29   27   24   31   26   24    26
 X30  |   21  ---  ---  ---  ---   17   25  ---  ---   23 |    41  ---  ---  ---  ---   20   22  ---  ---    26
  31  |   16   13    5   13   19    5   13    9   15    4 |    24   23   17   22   34   15   23   18   14    19
  32  |    9   12    5    8   12    5   11    8   14    3 |    20   19   13   16   17   11   18   14   13    14
------+---------------------------------------------------+----------------------------------------------------
 RMS  |   12   15    5   10   14    5   14   10   19      |T   25   25   19   23   27   17   23   21   18    20
 WRMS |   12   15    5   10   13    5   14    9   20      |NE  25   25   19   23   27   17   23   21   18    20
 MEDI |   11   15    5   11   13    4   13    9   15      |MD  24   24   18   22   26   16   22   19   16    19

Table 3.1759.5   GPS week: 1759   Day: 5   MJD: 56562.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    6   12    6    8    9    6   13   12   15    3 |    21   21   16   16   22   11   25   17   17    17
   2  |    9   15    5   12   18    3   17   12   24    4 |    20   21   20   29   24   20   23   22   27    20
   3  |    8   11    3   11   11    6   10   10   17    3 |    18   17   17   18   23   14   23   16   19    17
   4  |    6   16    5    7   14    4    8   13   23    3 |    16   21   13   16   14   11   14   14   20    12
   5  |    7   16    6   10   12    4   17   10   13    4 |    24   26   17   25   30   17   24   21   16    20
   6  |    8   11    4   13   12    5    7    9   17    3 |    15   15   16   15   21   13   20   16   18    15
   7  |    9   19    4    8   10    5   16   11   13    4 |    25   22   14   20   28   14   20   19   13    17
   8  |    8   16    5   10   18    7   14   13   20    4 |    20   25   17   19   23   12   21   21   22    17
   9  |    6   12    5   10   15    4   11   10   14    3 |    16   21   13   18   20   12   19   15   15    14
  10  |    6   14    6   11   19    5   12   14   30    4 |    86   85   80   81   82   81   81   82   87    81
  11  |    6   13    5    8   14    5    8    8   12    3 |    27   32   27   28   40   24   33   27   23    28
  12  |    9   20    7   12   18    4   19   20   20    5 |    23   22   12   22   31   13   19   26   15    17
  13  |    8   13    5    9   10    3   13    7   18    3 |    21   28   16   25   27   17   28   20   15    20
  14  |    8   15    6   10   10    5   14    8   19    4 |    19   21   22   19   21   15   23   17   17    19
  15  |    9   16    5   14   37    6   15   16   26    6 |    28   29   23   32   37   23   26   27   21    25
  16  |   10   18    4   15   18    3   15   15   19    5 |    18   20   14   18   28   11   18   12   18    14
  17  |    6   19    8   11   13    4   15   18   25    5 |    27   29   24   31   24   21   29   25   25    24
  18  |    8   16    6   11   15    3   15   13   13    4 |    17   19   15   17   26   13   21   15   14    15
  19  |    9   14    5   10    8    3   14   11   37    4 |    17   23   19   20   23   16   26   18   36    18
  20  |    7   14    5   10   10    4   15   10   12    4 |    22   19   15   21   25   14   22   17   11    17
  21  |    7   12    6    6   19    3   11   16   17    4 |    18   19   13   16   29   10   16   14   14    14
  22  |    6   19    6   12   15    4   12   15   13    4 |    14   20   14   19   27   13   20   11   13    14
  23  |   10   16    6   11   10    5   14   11   30    4 |    21   25   14   21   20   13   24   18   22    16
  24  |   11   13    5   11   11    4   12   10   13    4 |    18   19   14   15   24   10   22   17   10    15
  25  |    9   20    4    9   15    4   10    9   13    4 |    18   29   15   18   26   13   22   17   16    17
  26  |    6   14    5   13   12    5   11    9   14    3 |    19   19   17   26   16   15   17   19   15    17
 X27  |    6   10    4   11  ---    6   14   10   14    4 |    24   25   22   19  ---   20   35   22   20    23
  28  |    8   17    4   11   17    5   14   13   14    4 |    21   23   18   25   29   15   23   20   15    19
  29  |   10   18    6   10   12    4   17   13   32    4 |    26   32   22   29   28   22   29   29   22    24
 X30  |   12  ---  ---  ---  ---   38   21  ---  ---   16 |    29  ---  ---  ---  ---   30   23  ---  ---    23
  31  |    8   15    4   14   15    3   13   10   12    4 |    18   22   17   21   33   13   20   16   14    18
  32  |    8   10    4    8   13    6   10   10   14    3 |    17   17   13   15   14   11   18   14   14    13
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    8   15    5   11   15    5   13   12   20      |T   22   24   19   23   27   17   24   20   20    20
 WRMS |    8   15    5   10   13    5   13   11   21      |NE  22   24   19   23   27   17   24   20   20    20
 MEDI |    8   15    5   11   13    4   14   11   17      |MD  20   22   16   20   25   14   22   18   17    17

Table 3.1759.6   GPS week: 1759   Day: 6   MJD: 56563.000                            

        Weighted Average                                       Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  sio   IGS
------+---------------------------------------------------+----------------------------------------------------
   1  |    8   11    7    8   10    6   13   12   17    3 |    22   19   15   15   21   11   22   16   12    15
   2  |    9   15    5   10   13    3   16   10   24    4 |    27   24   22   25   27   22   25   22   33    21
   3  |    9   11    4    9   12    5   10    9   18    3 |    23   23   21   29   28   19   26   21   25    22
   4  |    6   10    6    7   13    4    9   14   24    3 |    19   18   12   15   16   13   18   20   21    14
   5  |    9   16    7    8   14    6   17   10   14    4 |    24   23   14   22   31   12   22   20   12    18
   6  |    9   11    4    8   12    4    8   10   16    3 |    23   21   21   25   27   20   27   23   22    22
   7  |    8   19    5   12   12    5   19   14   14    5 |    30   22   21   29   33   18   23   24   15    23
   8  |    4   11    6    9   10    6   10   15   23    3 |    20   20   16   18   23   12   22   25   25    17
   9  |    3   11    5    9    8    5    8   10   14    3 |    18   19   15   17   22   11   21   18   16    15
  10  |    5   12    6    8   12    4    9   14   33    3 |    62   67   61   64   62   59   64   59   77    61
  11  |    8   12    5    9   15    4    8    8   15    3 |    39   39   40   41   49   36   42   38   31    39
  12  |   10   19    8   11   17    6   17   18   21    5 |    31   25   19   23   30   16   24   27   18    21
  13  |    8   14    5    7   12    4   14    9   18    3 |    28   32   24   30   34   22   30   25   20    26
  14  |   10   14    6    8   11    5   12   10   23    4 |    26   29   29   31   33   26   30   29   25    28
  15  |   10   17    5    7   10    5   17   15   29    4 |    31   33   29   33   38   27   33   32   26    30
  16  |   10   20    4   12   15    3   15   16   20    5 |    18   22   13   23   24   12   20   17   18    15
  17  |    7   17    7    8   10    3   16   19   28    4 |    27   28   23   29   30   22   29   31   25    25
  18  |   11   15    8    7   18    3   14   13   16    4 |    21   23   17   21   26   14   28   13   15    17
  19  |   10   14    4    9   10    3   13   11   38    4 |    23   28   26   30   30   24   31   24   42    25
  20  |    9   15    5    7   13    4   17    8   12    4 |    25   22   16   21   28   14   22   17   11    18
  21  |    6   14    7    8   18    4   11   15   19    4 |    21   25   17   25   24   14   23   18   25    18
  22  |    9   14    5   10   18    4   13   16   14    4 |    16   21   16   23   27   15   24   17   18    16
  23  |    8   18    6    8   10    5   17   12   30    4 |    26   27   19   25   25   16   26   22   23    21
  24  |   16   14    6   10   12    7   11   11   16    4 |    23   20   15   15   26   11   22   16   13    16
  25  |   13   24    7   12   13    7   14   11   13    5 |    26   34   19   22   23   17   27   20   20    20
  26  |    7   11    4    9   10    3   10    9   14    3 |    20   20   18   24   24   17   19   22   17    19
 X27  |    9    8    4    7  ---    5   13    8   13    3 |    33   34   32   33  ---   32   42   33   29    33
  28  |    9   16    3   12   13    4   13   14   14    4 |    20   20   17   27   32   14   22   24   15    19
  29  |   11   16    5    8   11    3   15   14   38    4 |    35   37   30   33   30   29   37   32   34    31
 X30  |    9  ---  ---  ---  ---   22   12  ---  ---   10 |    18  ---  ---  ---  ---   16   25  ---  ---    18
  31  |    9   16    6   14   20    5   13   11   16    5 |    20   24   19   26   34   18   25   21   17    20
  32  |    8   12    5    7   10    5   12   13   15    3 |    20   21   14   19   17   14   22   17   15    15
------+---------------------------------------------------+----------------------------------------------------
 RMS  |    9   15    6    9   13    5   13   13   21      |T   25   26   21   26   29   19   27   23   23    22
 WRMS |    9   15    6    9   12    5   13   12   22      |NE  25   26   21   26   29   19   27   23   23    22
 MEDI |    9   14    5    8   12    4   13   12   17      |MD  23   23   19   25   27   16   25   22   20    20



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 4.1759   GPS week: 1759   MJD: 56557.0-56563.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3040 |U    5     5    13 |U    7    11    26 |U   10    17    22 |
emr | emr 2975 |     7     6    16 |U    7     9    24 |    10    18    28 |
esa | esa 2976 |     6     6    13 |U    6    11    24 |    10    16    23 |
gfz | gfz 2976 |U    6     6    13 |U    6    11    24 |U   10    16    23 |
grg | grg 2880 |U    7     7    15 |U    7    11    25 |U   11    18    26 |
igr | igr 2976 |     6     6    13 |     6    10    24 |    10    16    23 |
igs | igs 2976 |     6     6    15 |     6    10    24 |    10    17    23 |
jpl | jpl 3071 |     8     7    24 |U    7    10    26 |U   11    17    28 |
mit | mit 2976 |     9    14    27 |U   13    16    49 |U   11    28    51 |



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 5.1759.0   GPS week: 1759   Day: 0   MJD: 56557.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3043 |     4     4    11 |    10    14    31 |     9    10    19 |
emr | emr 2976 |     5     5    13 |    10    12    27 |     8    11    24 |
esa | esa 2976 |     4     4    10 |     9    14    29 |     9    11    19 |
gfz | gfz 2976 |     4     4    11 |    10    14    29 |     9    10    17 |
grg | grg 2880 |     6     6    16 |    11    14    28 |    10     9    24 |
igr | igr 2976 |     4     4    12 |    10    13    29 |     9    10    19 |
igs | igs 2976 |     7     7    16 |    10    12    26 |     8    10    21 |
jpl | jpl 3070 |     4     4    13 |    10    13    32 |     9     9    23 |
mit | mit 2976 |     7     6    19 |    11    14    36 |    13    17    28 |

Table 5.1759.1   GPS week: 1759   Day: 1   MJD: 56558.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3044 |     4     3    10 |     7    12    22 |     9    10    24 |
emr | emr 2976 |     6     7    15 |     7    10    19 |    11    13    30 |
esa | esa 2976 |     4     5     9 |     6    10    22 |    10    11    23 |
gfz | gfz 2976 |     4     4     9 |     5    10    22 |    10    10    22 |
grg | grg 2880 |     5     6    12 |     8    11    22 |     9    10    26 |
igr | igr 2976 |     5     5    10 |     6     9    21 |    10    10    23 |
igs | igs 2976 |     4     4    10 |     6    10    20 |    10    11    25 |
jpl | jpl 3071 |    12     9    37 |     5     8    20 |    11    13    31 |
mit | mit 2976 |     7    16    38 |     9    11    28 |    12    18    78 |

Table 5.1759.2   GPS week: 1759   Day: 2   MJD: 56559.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3053 |     4     6    12 |     7    12    23 |     8     7    18 |
emr | emr 2976 |     5     4    14 |     7    11    20 |     7     9    26 |
esa | esa 2976 |     4     5    10 |     6    12    22 |     8     8    20 |
gfz | gfz 2976 |     3     5    10 |     6    11    25 |     8     7    21 |
grg | grg 2880 |     4     6    11 |     8    11    23 |     9     7    29 |
igr | igr 2976 |     4     6    11 |     7    11    23 |     8     8    21 |
igs | igs 2976 |     3     4    11 |     6    11    22 |     7     8    22 |
jpl | jpl 3072 |     4     6    12 |     7    10    24 |    10    10    27 |
mit | mit 2976 |     4     4    11 |     6    13    22 |     6     7    22 |

Table 5.1759.3   GPS week: 1759   Day: 3   MJD: 56560.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3034 |     6     7    18 |     6    10    22 |     9    10    15 |
emr | emr 2976 |     8     6    18 |     6     7    23 |     9    11    20 |
esa | esa 2976 |     6     7    19 |     5     9    22 |     9     9    15 |
gfz | gfz 2976 |     6     7    19 |     5     9    21 |     9     9    15 |
grg | grg 2880 |     7     8    22 |     6    10    23 |     9     9    15 |
igr | igr 2976 |     7     7    20 |     5    10    20 |     9     9    16 |
igs | igs 2976 |     6     6    20 |     5     9    21 |     8    10    15 |
jpl | jpl 3072 |    14    11    57 |     6     9    22 |    10    10    20 |
mit | mit 2976 |     8     9    23 |    16    25    35 |     8    10    17 |

Table 5.1759.4   GPS week: 1759   Day: 4   MJD: 56561.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3030 |     7     5    13 |     7    10    32 |     8    12    19 |
emr | emr 2975 |    10     8    19 |     7     8    29 |     7    14    27 |
esa | esa 2976 |     8     7    17 |     7    11    27 |     7    11    21 |
gfz | gfz 2976 |     8     8    17 |     7    11    27 |     7    11    21 |
grg | grg 2880 |     8    10    19 |     7    10    29 |     8    12    23 |
igr | igr 2976 |     8     8    18 |     7    10    28 |     7    10    22 |
igs | igs 2976 |     8     9    19 |     7    10    32 |     8    12    20 |
jpl | jpl 3072 |     7     7    18 |     7    11    29 |     9    13    28 |
mit | mit 2976 |    18    32    53 |    19    24    98 |    13    14    36 |

Table 5.1759.5   GPS week: 1759   Day: 5   MJD: 56562.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3036 |     6     5    14 |     5     9    20 |     7     8    21 |
emr | emr 2976 |     7     5    17 |     6     6    23 |     8    10    26 |
esa | esa 2976 |     7     5    15 |     5     8    18 |     7     8    22 |
gfz | gfz 2976 |     7     6    16 |     5     7    19 |     7     7    21 |
grg | grg 2880 |     8     7    15 |     6     8    23 |     8    10    23 |
igr | igr 2976 |     7     6    15 |     5     7    19 |     7     7    21 |
igs | igs 2976 |     6     5    15 |     5     7    19 |     7     8    22 |
jpl | jpl 3072 |     6     5    18 |     5     7    23 |     9    10    24 |
mit | mit 2976 |    10    25    29 |    14    15    87 |    10    75   131 |

Table 5.1759.6   GPS week: 1759   Day: 6   MJD: 56563.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3045 |     7     7    10 |     7    11    29 |    19    61    38 |
emr | emr 2976 |     8     9    14 |     7     9    29 |    21    60    42 |
esa | esa 2976 |     7     6     9 |     7    11    26 |    20    58    39 |
gfz | gfz 2976 |     7     6     9 |     6    12    23 |    19    59    40 |
grg | grg 2880 |     9     6     8 |     8    11    29 |    25    67    46 |
igr | igr 2976 |     7     6     9 |     7    12    26 |    20    59    38 |
igs | igs 2976 |    10     6    12 |     7     9    28 |    20    61    38 |
jpl | jpl 3072 |     7     7    11 |     7    10    30 |    23    57    44 |
mit | mit 2976 |     9     8    14 |    14    14    41 |    17    53    44 |


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 6.1759   GPS week: 1759   MJD: 56557.500-56563.500

                                                         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 |     -47     -25     140     -68     -3 |      23     27
            |      12      12      64     104      7 |       2
emr   uuxuu |      22     -45     428     269     -4 |      43     46
            |      19      27      83      97      9 |       3
esa   uuuuu |       2      20     -62     -89     -5 |      16     21
            |      14       8      37      53      2 |       2
gfz   uuuuu |       8      11      15     -30      2 |       7     14
            |      16       7     101      37      3 |       2
grg   uuuux |      20       2     -72     258      0 |      13     22
            |      15       8      31      53      6 |       5
igr   xxxxx |      -1       8     -34      76      1 |      -1     11
            |      15      15      50      74      3 |       1
irf   xxxxx |       4       5     -23      25      0 |       4     13
            |       4       5      31      17      2 |       2
jpl   uuuxu |      29       0      44     344      0 |      35     36
            |      14      22      90      97      5 |       1
mit   uuuuu |      -9       3     -25     -70      2 |      17     21
            |       5      15      51      30      4 |       3
sio   xxxxx |      -3     -16       0     129      1 |      33     35
            |      30      13      72      59      3 |       1


Table 7.1759.0   GPS week: 1759   Day: 0   MJD: 56557.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -40     -20     102      -9      3 |      23     26
emr   uuxuu |      39     -23     378     152     -1 |      45     48
esa   uuuuu |     -22      22     -64    -111     -2 |      17     21
gfz   uuuuu |       1      23      99     -51     -2 |       5     15
grg   uuuux |      47       0     -45     305      0 |       6     23
igr   xxxxx |      11      25     -33      76      0 |      -2     11
irf   xxxxx |       0       0      25      39      2 |       2     13
jpl   uuuxu |      49     -21    -101     379     -8 |      36     37
mit   uuuuu |     -15      -8      53     -60      5 |      14     20
sio   xxxxx |      21     -37      40     153     -4 |      33     35

Table 7.1759.1   GPS week: 1759   Day: 1   MJD: 56558.500

                                                         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 |     -32     -42     102     113    -14 |      24     27
emr   uuxuu |      18     -10     288     194      7 |      45     48
esa   uuuuu |       0      28    -102    -165     -5 |      18     22
gfz   uuuuu |       6       6     147      -5      0 |       6     15
grg   uuuux |       3      -7    -100     233      7 |       8     22
igr   xxxxx |     -22      14      39      37      3 |      -1     11
irf   xxxxx |      -1       5      13      15      4 |       3     14
jpl   uuuxu |      43     -39       0     277      7 |      35     36
mit   uuuuu |     -12      23      36     -80      9 |      15     20
sio   xxxxx |      15     -20     -55     137      1 |      33     35

Table 7.1759.2   GPS week: 1759   Day: 2   MJD: 56559.500

                                                         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 |     -58     -15     126     -94     -4 |      22     27
emr   uuxuu |     -17     -22     421     163      8 |      43     46
esa   uuuuu |      17       7     -95     -27     -4 |      17     22
gfz   uuuuu |      22       5      49      13      2 |       6     15
grg   uuuux |       8      -5    -111     210      5 |      11     22
igr   xxxxx |       5     -11     -12     104      3 |      -2     11
irf   xxxxx |       3       6     -44      20     -3 |       3     14
jpl   uuuxu |      39       4     159     377     -1 |      34     36
mit   uuuuu |      -3      17     -57    -102      1 |      15     21
sio   xxxxx |       1      -7     -97     107     -4 |      32     34

Table 7.1759.3   GPS week: 1759   Day: 3   MJD: 56560.500

                                                         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 |     -61     -21     190    -169      1 |      23     27
emr   uuxuu |      37     -68     521     401     -8 |      45     47
esa   uuuuu |      16      12     -39    -111     -7 |      18     22
gfz   uuuuu |      -1      13     -52     -32      2 |       8     14
grg   uuuux |      20       8     -83     322      0 |      15     20
igr   xxxxx |     -17     -15     -80     218     -2 |       0     11
irf   xxxxx |       6      13     -43      54      1 |       4     13
jpl   uuuxu |      23      11       8     494      0 |      34     36
mit   uuuuu |      -9      15     -52     -31      4 |      17     21
sio   xxxxx |     -16     -17     -46     193      1 |      33     35

Table 7.1759.4   GPS week: 1759   Day: 4   MJD: 56561.500

                                                         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 |     -47     -26     260    -151      8 |      24     27
emr   uuxuu |      31     -52     477     322    -14 |      44     47
esa   uuuuu |       4      24       6     -72     -8 |      17     22
gfz   uuuuu |      -5      13    -143    -100      2 |       9     14
grg   uuuux |      13       1     -67     293      0 |      16     21
igr   xxxxx |       2      10       9      36      5 |       1      9
irf   xxxxx |       4       9     -49      24     -1 |       6     12
jpl   uuuxu |      11      13      25     263      6 |      36     37
mit   uuuuu |      -5     -17     -69     -39      0 |      20     21
sio   xxxxx |     -42       4     -12     198      0 |      34     36

Table 7.1759.5   GPS week: 1759   Day: 5   MJD: 56562.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -34     -38      74    -156     -6 |      24     28
emr   uuxuu |      25     -80     513     325     -4 |      43     45
esa   uuuuu |      -9      28     -64     -18     -6 |      16     20
gfz   uuuuu |      39      16     -51     -20      6 |       9     14
grg   uuuux |      26      18     -22     260      0 |      19     22
igr   xxxxx |      19      12    -102      78      0 |       2     10
irf   xxxxx |      10       4     -18      16     -2 |       7     12
jpl   uuuxu |      17      25     141     403      1 |      37     38
mit   uuuuu |     -13      -1     -18    -111     -2 |      21     23
sio   xxxxx |      40     -20      93      47      5 |      34     36

Table 7.1759.6   GPS week: 1759   Day: 6   MJD: 56563.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   uuuuu |     -53      -9     128      -9     -7 |      19     25
emr   uuxuu |      20     -62     399     322    -14 |      38     41
esa   uuuuu |       9      23     -75    -121     -5 |      11     17
gfz   uuuuu |      -4       3      54     -19      5 |       6     12
grg   uuuux |      26       3     -76     180    -11 |      17     22
igr   xxxxx |      -3      23     -56     -17     -1 |      -2     11
irf   xxxxx |       5       1     -44       4      0 |       3     12
jpl   uuuxu |      23       8      74     214     -2 |      33     34
mit   uuuuu |      -3      -7     -69     -68     -1 |      18     21
sio   xxxxx |     -36     -11      78      67      3 |      31     33



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