[IGSREPORT-22520] Wk 1778 IGS Final Orbits

IGS ACC igs.acc at noaa.gov
Fri Feb 21 07:47:43 PST 2014


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1778   (Feb 02, 2014 - Feb 08, 2014)

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:

igs1778[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1778[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1778[0-6].cls  IGS GPS clock combination summary report.
igs17787.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs17787.sum      Complete report.

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

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

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

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

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation. Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | NKLG
                0  |  EMR   | 8 9 8 9
                0  |  ESA   | MONP MONP
                0  |  GFZ   | 8 NRIL TIDB ARTU NRIL TIDB
                0  |  GRG   | 1 9 1 9 BRAZ IRKJ BRAZ IRKJ
                0  |  JPL   | 2 8
                0  |  MIT   | 2 5 6 8 9 14 2 9
                1  |  COD   | 9 ALIC
                1  |  EMR   | 8 24 8 9 24
                1  |  ESA   | 9 NTUS BOGT NTUS
                1  |  GFZ   | 8 8 ALRT ARTU BOGT TIDB ALRT ARTU TIDB
                1  |  GRG   | 1 DUBO IRKJ DUBO IRKJ
                1  |  JPL   | 8 9 IISC
                1  |  MIT   | 2 8 9 10 24 26 32 2 7 8 9 10 24 25 26 32 ALIC BUCU
                1  |  MIT   | MAC1 ALIC BUCU MAC1 SYDN
                2  |  COD   | BOGT
                2  |  EMR   | 8 9 8 9 WROC
                2  |  ESA   | BOGT
                2  |  GFZ   | 8 8 24 SYOG REUN SYOG
                2  |  GRG   | 9 9 KELY NOVM KELY
                2  |  JPL   | 8 9
                2  |  MIT   | 1 2 8 9 24 1 2 8 9 24 BUCU MDVJ USNO WROC BUCU MDVJ
                2  |  MIT   | USNO
                3  |  EMR   | 8 9 8 9
                3  |  ESA   | ARTU
                3  |  GFZ   | 9 8 9 MCIL MCIL
                3  |  GRG   | 9 9 ARTU NOVM NTUS NYA1 USNO NOVM NTUS NYA1 USNO
                3  |  JPL   | 8
                3  |  MIT   | 1 2 8 9 18 22 26 1 2 8 9 18 22 26 NTUS TOW2 NTUS
                3  |  MIT   | TOW2
                4  |  COD   | 1
                4  |  EMR   | 8 9 1 8 9 29 MCM4 TSKB HERS MCM4 TSKB
                4  |  ESA   | NOVM MCIL NOVM
                4  |  GFZ   | 8 8 MAL2 MAL2
                4  |  GRG   | 9 9 BUCU DUBO FAA1 GUUG KELY USNO DUBO FAA1 GUUG
                4  |  GRG   | MCIL NOVM
                4  |  JPL   | 8 9 17 29 CUSV
                4  |  MIT   | 1 2 6 11 12 18 19 22 25 28 31 1 2 3 6 8 9 11 12 16
                4  |  MIT   | 18 19 22 25 28 31
                5  |  COD   | 1 1 NKLG
                5  |  EMR   | 8 9 8 9 HERS
                5  |  ESA   | FLIN FLIN
                5  |  GFZ   | 8 9 8 9 BOGT KELY BOGT KELY
                5  |  GRG   | 9 9 IRKJ KARR NOVM FLIN IRKJ NOVM
                5  |  JPL   | 8 9 BOGT POL2
                5  |  MIT   | 1 2 8 9 1 2 8 9 11 19 23 31 MDVJ
                6  |  EMR   | 8 9 8 9 MCM4 YELL
                6  |  GFZ   | 8 8 MCIL MCIL
                6  |  GRG   | 9 9 IRKJ ISPA MCM4 NOVM HOB2 IRKJ NOVM
                6  |  JPL   | 2 8 9 ARTU
                6  |  MIT   | 1 2 8 9 10 11 17 18 22 25 31 32 1 2 17 18 32 MDVJ

    
 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  |  MIT   | ~23:40 | ~ 0.10 ns
                6  |  MIT   | ~00:00 | ~ -0.08 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 table lists all maneuvered satellites for this week. The
    solutions from COD and ESA, which modeled the maneuver, are used that day for
    combination, if available. An associated accuracy code of 0 (unknown) is given
    if only one AC is left (no redundancy). For the long arc evaluation the arc is
    split into two parts at the given maneuver epoch.
    
               PRN |    Date    | Ref. NANU
               ----+------------+----------
               G21 | 2014_02_07 | 2014011 

 8. 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
               ----+--------+---------------
                2  |  NGS   |  24

 9. 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 G24 |  4 |  4 |  4 |  4 |  4 |  4 |  4 |

10. 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.

11. 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 |   -1.0    -.5   -1.0     -36    -19    -31     .36
       EMR  |   0 |     .0    1.3   25.6      33     25      2     .51
       ESA  |   0 |    2.0    4.9   -2.1     -14     -3     55     .10
       GFZ  |   0 |     .5    -.7   -2.3     -20    -44    -22     .46
       GRG  |   0 |    5.2    -.8   -3.1     -44     -3     27    1.00
       JPL  |   0 |    3.6    3.3   27.7     -48     51    -34     .23
       MIT  |   0 |    5.5   -2.7   11.2     -15     12    -54     .39
       NGS  |   0 |   -3.5   -1.1   20.0     -54     17    -22     .43
       SIO  |   0 |    4.8   -2.8   15.6      38   -188   -321     .45

       COD  |   1 |   -1.3     .0   -2.2     -20    -18    -24     .73
       EMR  |   1 |    6.2     .6   20.4      29     27    -18     .59
       ESA  |   1 |    1.4    5.8     .0     -15     -3     45     .28
       GFZ  |   1 |     .7     .2   -1.7      -6    -52    -11     .21
       GRG  |   1 |   -2.8    -.7     .2      -1      7    -17     .63
       JPL  |   1 |    9.1    5.2   21.5     -58    -36    -54     .19
       MIT  |   1 |    5.1    1.6   12.9     -41     13    -28     .49
       NGS  |   1 |    4.9   -1.5   15.3     -48    -28      9     .55
       SIO  |   1 |    2.9   -5.7   16.5      25   -273   -248     .45

       COD  |   2 |   -1.2     .5   -2.4     -21     -8    -36     .69
       EMR  |   2 |    3.9   -6.6   15.3      21     24    -21     .57
       ESA  |   2 |    9.0    5.4   -5.3       1    -10     72     .40
       GFZ  |   2 |     .8    -.1   -1.4     -24    -63    -10     .04
       GRG  |   2 |    7.4   -3.7   -9.8     -17     -5     16     .71
       JPL  |   2 |   13.9    2.6   19.3     -57    -38     47     .56
       MIT  |   2 |    3.6   -1.8   10.8      -6      1    -30     .50
       NGS  |   2 |   -3.2    1.2    2.3      -8     16    -18     .77
       SIO  |   2 |    5.8   -1.9    1.9      74   -241   -134     .26

       COD  |   3 |    -.6     .0   -1.4     -18    -21    -32     .54
       EMR  |   3 |    6.9   -2.0   17.6      29     36    -22     .51
       ESA  |   3 |    7.2    6.2    3.7     -17    -40     72     .12
       GFZ  |   3 |     .7    -.4   -1.0     -30    -55    -10    -.08
       GRG  |   3 |    5.2    -.2   -4.3     -11     -8     -6     .47
       JPL  |   3 |   18.3     .9   24.7     -36      6    -25     .30
       MIT  |   3 |     .4    -.6   12.8       1    -25    -26     .30
       NGS  |   3 |    4.5    2.7   15.2     -34    -24     15     .57
       SIO  |   3 |    4.3   -1.5   -2.3     -20   -297    -30     .37

       COD  |   4 |    -.6   -1.1   -1.7     -33    -30    -29     .46
       EMR  |   4 |    8.2    1.6   10.1      22     37      4     .21
       ESA  |   4 |    9.5    2.1    2.5     -16    -89     51     .33
       GFZ  |   4 |     .2     .2   -2.0     -32    -44    -18     .11
       GRG  |   4 |    3.5    5.1   -3.1     -32     -7     21     .49
       JPL  |   4 |    3.2   -3.6   22.8     -49    -53     56     .58
       MIT  |   4 |    2.6    3.6    7.6     -22    -17    -23     .22
       NGS  |   4 |    3.2   -4.1   17.4     -69    -13     -1     .47
       SIO  |   4 |    2.5     .4   -3.0     120    -81     14     .20

       COD  |   5 |    -.8   -1.1   -1.3     -41     -5     -8     .60
       EMR  |   5 |    5.7    2.8   14.4      32     37     -3     .29
       ESA  |   5 |   10.7    4.0    3.3     -10    -81     33     .20
       GFZ  |   5 |     .3     .0   -2.4     -28    -34    -11     .42
       GRG  |   5 |    5.4   -3.3   -4.6     -31    -13     16     .47
       JPL  |   5 |    8.4    3.3   23.1     -24    -17    -35     .37
       MIT  |   5 |     .2     .6    6.4      -1     -3     -3     .37
       NGS  |   5 |    3.0   -3.4    6.9     -34     -7      4     .75
       SIO  |   5 |    3.0    1.6   -2.3     170     19     21     .43

       COD  |   6 |    -.2     .4    -.9     -10     -4    -19     .35
       EMR  |   6 |    7.8     .3   10.6      37     39     -7     .43
       ESA  |   6 |    4.7    5.2   -7.7     -17    -28     40     .23
       GFZ  |   6 |    -.3    -.1   -2.3     -21    -29    -35     .69
       GRG  |   6 |    2.1   -9.2   -3.4      -5    -12     12     .69
       JPL  |   6 |    7.5    3.1   16.9      33      8     -4     .50
       MIT  |   6 |    -.2     .3    3.6      -3      1    -11     .44
       NGS  |   6 |    1.3    2.3   -1.5       8     -5      7     .65
       SIO  |   6 |    2.5    -.3    7.7      23   -199    132     .54


12. 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.

13. 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 1.1778.a). It also displays the computed satellite
position sigmas for the combined orbits (Table 1.1778.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 2.1778.[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 3.1778.[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 5.1778.0-6). 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 1778 summary.                       (Feb 02, 2014 - Feb 08, 2014)

Table 1.1778.a   GPS week: 1778   MJD: 56690.000-56696.000

         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  250|    0     1     0    -5    38   -10   .13   11   11 |    -987      51     20    127
        |    1     1     2    26     5    10   .05           |     280     701
emr   79|    1    -1     6   -26     0     2   .02   18   17 |    3190    -294     19    145
        |    1     1     3    11    12     4   .04           |    1144     897
esa  150|    0     1     1     5   -20    24  -.22    7    7 |    -380    -370     12    132
        |    0     0     1    11    31    14   .02           |    1249    1264
gfz  192|    0     0    -5    19    -1   -22   .15   10   10 |      87     -37     14    121
        |    0     0     0    15    14    11   .02           |     494     610
grg  181|    5     0    -1    -2   -28    -6   .18   16   15 |    -108      53     18    145
        |    1     1     1    28    17     8   .03           |     280     466
igr  n/a|    0     0    -1    -5    39     8  -.17    5    5 |   -3042     -17     17    100
        |    0     0     0     9    13    10   .02           |     846    1073
jpl   80|    0    -1     0    15    25     1   .05   16   15 |    3176    -310     20    136
        |    2     0     1    28    16    23   .05           |    1173     884
mit  299|    0    -2    -3    19     1   -17  -.14   13   12 |    -242     130     30    272
        |    1     0     1    14    42    20   .01           |     323     455
ngs  230|   -1     0     3   -53     1     7   .05   14   11 |   -3260    8439   1742   3442
        |    1     0     5    67    62    21   .06           |    6330   22427
sio  453|   -1    -2    -7    38  -153   -99  -.51   22   21 |     ---     ---    ---    ---
        |    2     1     3    61   120   148   .03           |     ---     ---


Table 1.1778.b   GPS week : 1778   MJD: 56690.000-56696.000   

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

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    5   13    5    5    5    5    5 |
   2  |    5    5    5    4    4    5    5 |
   3  |    4    4    4    4    4    5    4 |
   4  |    5    4    4    4    4    5    4 |
   5  |    4    4    5    4    4    4    5 |
   6  |    4    4    4    4    4    4    4 |
   7  |    4    4    5    4    5    4    4 |
   8  |    6    6    6    6    7    6    5 |
   9  |    7    8    8    8    8    7    7 |
  10  |    4    4    4    4    4    4    4 |
  11  |    4    4    5    5    5    3    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    4    5    5    5    5    4    5 |
  14  |    5    5    5    5    5    5    5 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    6    5    5    5    5 |
  17  |    5    5    5    6    5    5    6 |
  18  |    4    5    5    5    4    4    5 |
  19  |    4    4    5    5    5    5    5 |
  20  |    5    5    5    5    5    4    5 |
  21  |    4    4    4    5    4   21    5 |
  22  |    4    4    5    5    5    4    4 |
  23  |    4    5    5    5    5    4    4 |
  24  |    5    6   15    5    5    5    4 |
  25  |    4    4    4    4    4    4    4 |
  26  |    4    4    5    5    5    4    4 |
  27  |    4    5    5    4    4    5    5 |
  28  |    4    5    5    5    5    5    5 |
  29  |    6    5    5    5    5    5    5 |
  30  |    0    0    0    0    0    0    0 |
  31  |    5    4    4    4    6    6    5 |
  32  |    5    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 2.1778.0   GPS week: 1778   Day: 0   MJD: 56690.000                            

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  248|   -1     1     0    30    30    -8   .11   11   10 |   -1284     549     21    114
emr   80|    0     0    13    -4    -4     4  -.04   18   17 |    4192      53     15    139
esa  150|    1     1     0    21    -4    32  -.22    6    6 |    -816      48     10    129
gfz  190|    0     0    -5    29   -19   -32   .13   10    9 |    -284     -53     18    128
grg  178|    6     0    -1    -8   -24    -1   .14   16   15 |    -184      22     16    135
igr  n/a|   -1     0    -1   -10    39    12  -.16    6    6 |   -2186     -29     21    114
jpl   80|   -2    -2     0     7    21   -10   .10   14   13 |    4237      61     17    132
mit  299|    0    -2    -3    22    55   -29  -.13   13   13 |    -443     362     32    250
ngs  226|    0     0     8  -161   -32     5   .14   14   11 |   -1076     227   1490   3261
sio  457|    0    -3   -10    35  -146  -312  -.49   22   21 |     ---     ---    ---    ---

Table 2.1778.1   GPS week: 1778   Day: 1   MJD: 56691.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  251|    0     0    -1    27    44   -14   .07   10   10 |    -975     -41     21    115
emr   80|    2    -1     7   -17    16     4   .00   17   17 |    4609    -431     15    123
esa  150|    0     1     0    -7    -5    13  -.21    7    6 |     638   -1142      9    120
gfz  195|    0     0    -4    19   -14   -15   .16    9   10 |     -34     320     12    122
grg  184|    3    -1    -1    54    -5    -3   .19   15   15 |    -214     291     16    141
igr  n/a|   -1     0     0    -8    24    17  -.20    4    4 |   -1922    -591     15     86
jpl   80|    0    -1     1    13     8    42   .06   16   15 |    4657    -476     17    134
mit  300|    1    -1    -4    39    12   -19  -.13   13   13 |    -297     440     32    281
ngs  230|   -1     0     8  -132   -54     5   .12   14   11 |  -17603   59277   1886   3532
sio  456|    2    -2   -12    33  -262  -261  -.49   22   21 |     ---     ---    ---    ---

Table 2.1778.2   GPS week: 1778   Day: 2   MJD: 56692.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  252|    0     2     1   -36    40    -9   .18   10   10 |   -1143     502     23    144
emr   76|   -1    -3     7   -32    -8     6   .01   19   18 |    4020    -946     14    145
esa  150|    1     1     0     5     9    40  -.25    8    8 |    -948     351     13    167
gfz  196|    0     0    -4    39     0   -13   .14   10    9 |     328    -183     12    124
grg  183|    4     0     0    -5   -15    -6   .14   15   15 |     317    -134     14    163
igr  n/a|    0     0     0   -22    26    10  -.18    5    5 |   -2647    -953     17    101
jpl   80|    6    -2    -1   -37    26    15  -.03   19   18 |    3974    -937     21    157
mit  300|   -1    -2    -1    -5    -3   -29  -.12   12   12 |      52     215     25    286
ngs  235|   -3     0     1    17   -69   -24   .06   14   11 |   -1036     437   1509   3355
sio  460|    0    -3    -6    35  -222  -141  -.56   21   19 |     ---     ---    ---    ---

Table 2.1778.3   GPS week: 1778   Day: 3   MJD: 56693.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  254|   -2     2    -4   -24    38   -29   .21   13   13 |   -1140     443     21    131
emr   80|    2    -1     7   -29     8    -7  -.00   17   17 |    3310   -1398     16    166
esa  150|    0     1     0   -10   -28    33  -.18    7    6 |   -1365     467     10    132
gfz  194|    0     0    -4    24   -14   -22   .18   11   10 |     155    -250     12    114
grg  184|    7     0     0     6   -34   -14   .19   19   18 |     -34    -298     17    171
igr  n/a|    0     0    -1    -1    36    -8  -.16    5    5 |   -3594    -996     16     99
jpl   80|    0    -1     0    52    10   -23   .06   15   15 |    3278   -1429     17    136
mit  299|    0    -1    -2    29    -9   -13  -.13   11   10 |     102    -362     29    288
ngs  235|    0     0     3   -38    64    -1   .03   15   11 |    -879     179   1535   3734
sio  462|    0     0    -6   -53  -274   -60  -.52   20   18 |     ---     ---    ---    ---

Table 2.1778.4   GPS week: 1778   Day: 4   MJD: 56694.000                            

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  249|    0     0     0   -19    48   -11   .12   10    9 |    -408   -1462     23    117
emr   80|    1    -2     2   -35     4     2  -.00   20   19 |    2351    -798     46    140
esa  150|    0     2     3    13   -54    35  -.23    9    8 |    1394   -2496     21    113
gfz  192|    1     0    -5    24    11   -43   .15    9    9 |    1011   -1197     18    112
grg  183|    5     1    -3   -30   -61     8   .19   18   16 |     134    -629     34    144
igr  n/a|   -1     0     0     3    61     2  -.20    5    5 |   -3758    -415     19    107
jpl   80|    0    -2    -3    34    49     8   .02   16   15 |    2300    -772     34    124
mit  299|    0    -1    -3    16   -66   -43  -.14   12   11 |      52    -615     35    271
ngs  226|    0     0     7   -33    74    47   .00   14   11 |    -269   -1567   2090   3603
sio  448|   -3     0    -6   101   -80   -20  -.52   21   21 |     ---     ---    ---    ---

Table 2.1778.5   GPS week: 1778   Day: 5   MJD: 56695.000                            

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  250|    0     1     1     7    36    -4   .11   10   10 |    -970     106     16    112
emr   80|    0     0     5   -34   -21     3   .07   17   17 |    1586    1319     17    150
esa  150|    1     2     2     9   -68     5  -.21    6    6 |     516   -1064     11    132
gfz  191|    0     0    -5    -7    14   -18   .15   11   11 |     -35     496     13    119
grg  180|    3     0    -4   -30   -30   -14   .18   15   16 |    -551     794     16    132
igr  n/a|    0     0    -1    -3    35     2  -.14    5    4 |   -4199    1879     17     89
jpl   80|   -1    -1     0    26    48     2   .10   14   14 |    1544    1268     17    133
mit  299|   -1    -2    -3    12    47    19  -.15   15   13 |    -759     661     29    242
ngs  227|   -2     0     0    -4    63     7  -.03   15   14 |   -1028     235   1906   3486
sio  441|   -5    -3    -4   127    70    -7  -.48   23   23 |     ---     ---    ---    ---

Table 2.1778.6   GPS week: 1778   Day: 6   MJD: 56696.000                            

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  249|   -2     0     3   -21    34     5   .13   12   12 |    -991     260     19    157
emr   80|    3     0     4   -34     9     0   .08   18   18 |    2264     141     15    154
esa  150|    0     1     2     8    10     8  -.22    7    7 |   -2082    1243     10    133
gfz  192|    1    -2    -5     7    12   -14   .12   11   10 |    -531     606     16    129
grg  180|    3     0     0    -7   -29   -12   .21   14   12 |    -227     327     16    135
igr  n/a|    0     0    -1     5    50    22  -.17    5    5 |   -2988     984     16    109
jpl   80|    1     0     1    11    15   -21   .05   15   14 |    2248     109     18    140
mit  300|    0    -2    -4    24   -25    -6  -.16   13   12 |    -406     213     31    291
ngs  233|   -1     1    -5   -18   -32    15   .04   12   11 |    -933     290   1784   3124
sio  452|   -3    -3    -4    -7  -162   106  -.50   25   25 |     ---     ---    ---    ---

       
       
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 3.1778.0   GPS week: 1778   Day: 0   MJD: 56690.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   11   19    7   11   17    7   13   13   17   23    4 |    53   52   49   52   50   44   23   40   52   35    48
   2  |   12   22    5   12   17    4    9   18   10   12    4 |    39   39   28   33   35   28   31   32   33   23    31
   3  |    8   14    4    7   17    4    8   13    6   23    3 |    33   34   32   34   36   30   33   34   35   34    32
   4  |   12   17   10    8   17    6   13    7   16   26    4 |    39   41   32   36   38   34   36   34   35   43    34
   5  |   12   17    7    9   12    5   13   12   12   26    4 |    54   57   47   50   49   48   52   50   53   48    50
   6  |    9   12    5    7   16    4   11   11    7   25    3 |    29   30   31   31   34   30   33   35   34   36    30
   7E |    8   16    6    8   16    6   16   11   14   20    4 |    47   47   45   49   51   45   47   45   47   51    46
   8E |   15   21    9    9   16    8   17   15   24   19    5 |    53   52   49   51   51   49   50   53   50   49    49
   9E |   16   31   11    9   18   11   21   18   35   14    7 |    76   82   78   75   78   73   78   79   78   77    76
  10  |    9   13    5   10   13    3   10   10   12   16    3 |    26   24   24   31   30   26   27   34   27   27    26
  11E |    8   15    6    8   15    6   13    9   15   15    4 |    36   42   36   38   39   36   39   33   42   26    36
  12  |   12   19    6    9   19    5   17   10   11   22    4 |    34   30   29   36   40   28   34   36   33   31    31
  13  |    7   16    6    9   18    6   13   15   11   18    4 |    49   47   49   52   54   48   52   52   45   49    48
  14  |    7   20    6   11   15    7   15   13   12   17    4 |    45   42   49   57   55   49   47   54   47   49    48
  15  |    8   22    8   10   14    8   17   14   14   22    4 |    29   33   28   35   35   30   34   26   35   29    28
  16  |   14   15    6    6   16    6   15   14   11   19    4 |    32   27   29   32   33   28   32   29   34   23    29
  17  |   13   16    7   10   20    5   24    9   11   17    5 |    36   34   28   40   41   31   33   32   34   25    32
  18  |    8   16    6   12   14    5   13   13   13   30    4 |    24   25   23   32   22   20   26   25   27   18    23
  19  |    7   11    4    9   22    6   15   12   11   18    4 |    30   30   29   36   39   32   30   31   34   24    30
  20  |    9   17    8   18   11    4   14   13    9   32    4 |    19   25   20   27   21   19   23   22   19   27    18
  21  |   12   17    4    9   12    6   13   12   13   17    4 |    27   27   20   23   25   24   24   22   33   17    26
  22  |    7   16    5    6   11    7   11   14   13   34    3 |    26   26   23   29   24   24   26   28   26   27    24
  23  |    7   16    7   10   14    5   12   11   15   30    4 |    44   41   44   51   48   45   45   44   41   39    44
  24E |    9   20    7   17   12   12   12   10   17   17    4 |   502  362  505  500  504  504  503  503  497  208   501
  25  |    7   16    4    8   15    4   14   12   13   15    4 |    32   33   30   30   38   29   39   34   34   28    31
  26  |    7   17    5    8   18    6    8   14   12   25    4 |    33   28   36   41   46   35   37   40   31   41    35
 X27  |   10   14    5    7  ---    6   11   11    9   11    3 |    25   28   25   26  ---   24   31   29   28   22    25
  28  |   10   18    7    9   16    6   15   11   12   13    4 |    28   34   32   34   40   29   34   33   32   29    31
  29  |   15   21    6   13   19    6   21   15   15   18    5 |    33   30   26   39   38   25   29   32   29   23    29
 X30  |    3  ---  ---  ---  ---   60  ---  ---  ---  ---    0 |    61  ---  ---  ---  ---   43  ---  ---  ---  ---    59
  31E |   13   15    5    7   22    7   15   14   12   13    4 |    72   63   63   64   64   64   64   63   65   62    64
  32  |   11   11    8    6   16    6    8   21   12   29    4 |    31   29   27   29   31   26   30   27   32   26    27
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    6   10   16    6   14   13   14   22      |T   53   48   50   54   56   50   52   52   52   40    51
 WRMS |   10   17    6    9   15    6   13   13   11   21      |NE  34   33   31   36   37   31   33   34   34   30    33
 MEDI |    9   16    6    9   16    6   13   13   12   19      |MD  33   34   31   36   39   30   34   34   34   29    31

Table 3.1778.1   GPS week: 1778   Day: 1   MJD: 56691.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   24   23  ---  ---   35   14  ---   23   20  ---   12 |    57   55  ---  ---   53   41  ---   41   44  ---    45
   2  |   15   17    7    8   14    4   13   15   10   14    4 |    32   28   22   25   31   23   25   23   31   19    25
   3  |    6   11    8    6   17    4   11   12   10   23    3 |    23   27   25   26   30   24   24   26   26   31    24
   4  |   11   13    9    8   15    6   14    7   13   20    4 |    33   34   27   33   35   31   36   28   40   34    31
   5  |    6   17    5    9   11    5   14   11   11   24    4 |    35   42   33   36   38   34   40   33   43   35    35
   6  |    7   13    6    8   16    5   11   14   10   25    3 |    23   27   24   26   31   24   27   29   29   34    25
   7E |    9   17    5    9   13    5   17    9   13   23    4 |    40   35   34   38   36   34   36   37   44   40    36
   8E |   14   26    9   13   19    5   17   14   26   19    6 |    42   52   33   37   37   36   46   43   47   35    38
   9E |   18   30   10   13   20    6   22   18   31   16    7 |    54   58   55   52   52   52   59   55   66   53    53
  10  |    9   12    6    8   12    3   11   10    9   16    3 |    24   26   24   26   27   23   29   29   30   23    25
  11E |    7   15    7    7   16    4   14    8   10   25    3 |    32   33   30   31   36   29   30   28   33   23    30
  12  |   11   15    7    9   19    4   17   13   12   23    4 |    30   29   25   31   35   24   27   31   31   26    28
  13  |    9   17    6    9   18    3   16   12   10   15    4 |    36   37   34   36   44   32   38   38   31   33    34
  14  |   10   19    6   12   13    5   19   14   12   20    4 |    33   34   33   41   37   35   33   34   37   31    34
  15  |   12   19    7    9   15    5   18   11   10   22    4 |    27   29   20   29   31   23   29   20   30   21    24
  16  |   17   17    7    6   16    4   19   13   13   20    5 |    32   28   25   30   31   25   27   24   28   21    26
  17  |   11   20    7   12   17    4   22   11   12   19    5 |    30   30   24   35   37   26   28   28   34   23    28
  18  |    9   15    8   11   14    3   15   12   16   30    4 |    20   23   18   26   16   17   21   20   28   18    19
  19  |    5   13    5    7   19    3   18   11    6   20    3 |    24   26   24   28   35   24   22   23   27   22    24
  20  |    9   14    9   15   12    4   15   15   16   31    4 |    13   18   12   16   15   11   18   14   22   23    11
  21  |    8   13    4    9   14    3   12   13   12   17    3 |    22   18   15   19   24   17   19   20   27   15    18
  22  |   10   14    5    6    9    2   13   12   15   33    4 |    22   24   17   21   21   18   21   22   21   26    19
  23  |   10   16    6   11   16    4   18    9   17   24    4 |    33   32   30   36   36   29   32   32   25   25    30
  24E |   14   22    8   14   17    5   14   16   17   19    5 |   544  317  549  551  547  550  553  549  555  252   549
  25  |   10   13    6    7   15    3   14   10    8   19    3 |    28   30   27   26   34   26   32   28   31   24    28
  26  |    7   14    5    8   14    4   14   13   12   28    4 |    27   27   26   31   33   27   26   30   33   32    27
 X27  |    8   16    9    8  ---    4   15   15   11   12    4 |    23   25   19   23  ---   18   29   24   23   19    21
  28  |   10   20    7    8   15    4   16   13   12   12    4 |    27   33   25   30   35   25   31   29   29   25    27
  29  |   10   25    7   10   18    3   22   14   11   18    5 |    24   26   20   31   31   21   27   29   28   21    23
 X30  |    3  ---  ---  ---  ---   97  ---  ---  ---  ---    0 |    58  ---  ---  ---  ---  111  ---  ---  ---  ---    57
  31E |    9   13    7    7   14    4   15   15   16   14    4 |    51   48   49   50   51   48   50   52   55   42    50
  32  |   10    8    5    5   15    5   13   17   10   31    4 |    30   30   27   28   29   26   35   28   33   29    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   17    7    9   15    4   16   13   14   22      |T   47   41   44   48   50   46   48   46   50   35    46
 WRMS |   10   17    6   10   15    4   15   13   11   21      |NE  29   29   23   28   31   28   27   27   30   25    27
 MEDI |   10   16    7    8   15    4   15   13   12   20      |MD  30   30   25   30   35   26   29   29   31   25    28

Table 3.1778.2   GPS week: 1778   Day: 2   MJD: 56692.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   12   22    8   13   13    4  ---   11   14   17    5 |    40   47   42   45   38   37  ---   33   38   32    38
   2  |   14   22    7    9   15    5   14   12   10   15    4 |    36   31   25   25   30   23   22   25   30   18    26
   3  |    8   12    7    9   16    4   15   11   13   24    4 |    24   27   22   25   26   24   23   27   26   31    23
   4  |    7   18    8    8   16    6   16    7   11   18    4 |    30   33   28   29   30   28   29   29   33   32    28
   5  |   12   19    7   12    8    6   15   12   16   25    4 |    38   43   33   34   37   32   40   35   42   38    35
   6  |    7   10    9    7   15    6   13   13   13   26    4 |    24   26   26   24   28   23   23   27   25   32    24
   7E |    8   19    9    7   17    5   20    8    9   25    4 |    46   41   42   46   42   41   43   42   48   46    42
   8E |   11   21    8   11   18    7   20   15   23   19    5 |    42   47   38   42   42   38   47   44   49   37    41
   9E |   15   38   13    9   19   11   26   20   32   12    8 |    46   59   42   45   46   42   54   47   60   42    44
  10  |    8   17    7   10   12    4   10    9   12   13    4 |    19   23   17   21   19   18   16   20   26   20    18
  11E |   12   22    7    8   13    4   17    8   14   14    4 |    28   40   27   30   33   30   31   30   34   22    29
  12  |   12   20   10    9   17    4   26   12    6   24    5 |    28   27   23   30   36   23   32   28   28   25    25
  13  |    8   17    8    7   20    4   22   11   14   15    4 |    43   41   41   45   46   39   43   42   45   39    42
  14  |   16   17    7   13   13    5   20   15    7   19    5 |    35   39   42   51   46   42   45   43   42   39    41
  15  |   11   22    8   11   16    5   18   12   11   21    5 |    27   29   25   32   31   26   30   23   28   23    25
 X16  |   14   17    7  ---   17    6   22   12   14  ---    5 |    32   28   25  ---   32   25   30   25   25  ---    26
  17  |   11   20    9    9   18    4   24   10   13   20    5 |    29   29   27   34   37   27   29   29   36   19    29
  18  |   11   18   11   13   11    3   17   12   15   28    5 |    21   22   20   30   21   18   25   18   23   17    20
  19  |    9   14    5    7   19    5   20   10   13   16    4 |    30   28   25   28   34   27   24   29   29   23    26
  20  |   10   16    9   17   10    4   17   13   12   30    5 |    17   22   16   22   19   14   22   18   18   25    15
  21  |   11   15    7    7   13    6   16   12   12   15    4 |    28   23   20   20   23   18   25   20   20   15    21
  22  |   10   17    9    9    9    4   18   14   12   32    4 |    22   22   20   26   23   20   26   20   25   25    20
  23  |    8   16    6   10   12    4   21   11   15   23    4 |    38   36   37   44   39   36   35   37   39   32    37
 X24E |   26  ---   32   33   35   17   55   17  178  ---   14 |   690  ---  701  689  697  692  697  696  682  ---   696
  25  |   10   13    7    6   16    5   19   10    9   16    4 |    29   31   29   29   38   27   37   29   29   25    29
  26  |    7   16    7   10   19    2   15   14   11   26    4 |    33   30   35   38   42   32   30   36   32   36    34
 X27  |   12   15    9    7  ---    6   13   14   10   12    4 |    22   25   20   21  ---   18   23   23   23   19    20
  28  |    7   21    8   10   16    5   16   10   13   13    4 |    26   32   27   30   36   26   30   28   27   25    27
  29  |    7   21    5   10   15    6   23   11   11   18    4 |    29   26   22   32   33   21   28   28   24   18    25
 X30  |    4  ---  ---  ---  ---  116  ---  ---  ---  ---    0 |    70  ---  ---  ---  ---   71  ---  ---  ---  ---    69
  31E |    6   15    7    6   16    4   21   10   11   16    4 |    48   46   45   48   45   45   46   46   51   43    46
  32  |   12   12    7    6   19    6   11   10   12   24    4 |    28   25   20   24   23   21   23   24   30   28    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   19    8   10   15    5   19   12   14   21      |T   53   32   50   54   55   50   53   51   53   28    51
 WRMS |   10   18    8    9   15    5   18   12   11   19      |NE  30   29   26   31   32   27   29   27   29   26    28
 MEDI |   10   17    8    9   16    5   18   12   12   19      |MD  29   29   27   30   34   27   30   29   30   25    27

Table 3.1778.3   GPS week: 1778   Day: 3   MJD: 56693.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
   1  |   14   18    6   10   13    6   13    7   17   16    4 |    32   43   36   40   36   38   21   37   41   31    37
   2  |   14   15    4    8   16    4   12   12   10   15    4 |    41   41   37   34   40   33   36   31   37   28    35
   3  |    9   11    4    7   25    8   14    9    7   24    4 |    29   31   28   32   43   28   26   33   32   34    30
   4  |   11   13    7   11   21    6   13    8   12   16    4 |    37   40   35   39   40   36   37   37   41   39    37
   5  |   13   17    6    9   11    6   16   11    9   25    4 |    46   50   41   42   46   40   47   40   45   44    43
   6  |    7   12    6    8   24    6   12   11   13   26    4 |    33   35   35   34   43   31   32   37   35   38    34
   7E |    8   16    6    8   13    5   16    8   14   20    4 |    51   49   47   51   45   46   52   48   50   51    48
   8E |   14   23    8    8   18    4   14   14   33   16    6 |    54   56   48   49   45   47   50   52   61   46    49
   9E |   16   36   12   11   18   10   19   14   40   10    8 |    56   71   58   58   57   55   62   61   72   59    57
  10  |    8   10    4    9   16    5    9   11   11   14    3 |    26   25   25   27   29   24   24   28   25   24    24
  11E |   11   22    9    9   20    3   13   11   12   14    4 |    33   38   32   34   39   32   34   33   34   24    32
  12  |   14   17    6   11   21    6   19   12    8   23    5 |    36   31   30   34   41   29   32   35   30   31    31
  13  |    9   15    6   10   18    4   15   12   15   17    4 |    49   47   49   53   54   47   47   49   41   45    47
  14  |   16   18    9   16   13    5   16   10   17   19    5 |    47   45   50   58   52   50   44   51   48   48    48
  15  |   15   18    8   11   16    6   18   15    9   22    5 |    26   28   23   32   33   27   32   24   26   28    24
  16  |   17   16    5    8   21    4   18    9   11   21    4 |    38   33   31   33   38   30   32   31   33   27    31
  17  |   28   20    7   14   22    4   22    9   11   16    6 |    43   33   33   42   44   33   34   36   37   28    35
  18  |   10   17    9   17   13    4   15    9   13   28    4 |    26   24   19   32   21   18   23   20   22   19    20
  19  |    9   16    4   12   28    3   19    9   11   14    4 |    31   32   30   38   44   30   28   32   32   24    30
  20  |   10   15    6   16   11    4   13   11   17   29    4 |    17   22   14   22   19   15   20   18   17   25    15
  21  |   15   14    6    9   23    4    8   10   13   14    4 |    25   25   20   24   32   22   23   20   26   14    24
  22  |    6   17    6   13   12    4   14   13   16   32    4 |    29   23   25   30   29   25   25   25   22   28    24
  23  |   10   19    6   11   15    4   16   12   10   23    4 |    44   43   44   49   47   43   40   44   38   37    42
  24E |   13   13    7   17   24    5   21   14    9  ---    5 |   304  503  305  300  311  303  305  306  307  ---   304
  25  |    9   15    6    8   17    4   14    7    8   16    3 |    36   32   32   30   41   30   36   33   31   30    32
  26  |   11   14    6   10   26    4   12   13   11   26    4 |    38   29   35   40   47   35   32   37   32   39    35
 X27  |   10   14    5    7  ---    5   13   12   10   14    4 |    27   28   24   25  ---   23   29   28   27   23    25
  28  |   12   22    6   11   17    5   12   10   15   12    4 |    32   38   35   35   41   32   33   33   34   31    33
  29  |   11   20    6   14   21    5   19   12    8   17    5 |    29   30   28   39   39   27   28   33   33   23    30
 X30  |    5  ---  ---  ---  ---  119  ---  ---  ---  ---    0 |    61  ---  ---  ---  ---   82  ---  ---  ---  ---    60
  31E |    9   14    7   10   10    5   16   13   14   13    4 |    79   77   81   76   77   74   79   83   78   75    78
  32  |   12    9    5   10   24    7    8    7   12   27    4 |    29   29   26   25   35   25   30   26   29   31    26
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   17    7   11   19    5   15   11   15   20      |T   46   52   43   47   50   44   44   45   45   34    44
 WRMS |   13   17    6   10   18    5   15   10   11   18      |NE  34   32   31   35   38   32   31   32   32   30    32
 MEDI |   11   16    6   10   18    5   14   11   12   17      |MD  36   33   33   35   41   32   32   33   34   31    33

Table 3.1778.4   GPS week: 1778   Day: 4   MJD: 56694.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   15   23    7   10   14    7  ---   12   13   20    5 |    44   47   41   40   35   37  ---   34   43   31    38
   2  |   10   18    7    8   15    3   11   15   11   15    4 |    36   34   28   28   28   28   28   29   38   23    29
   3  |    8   19    8    8   21    5   12   11   11   25    4 |    37   35   35   35   37   33   40   35   42   36    34
   4  |    5   17    8    9   22    5   13   10   13   17    4 |    36   37   34   37   38   35   35   34   41   37    35
   5  |    7   20    9    8   11    5   15    9   16   25    4 |    40   45   41   39   39   37   43   38   49   41    40
   6  |    6   17   10    8   21    6   10   12   10   27    4 |    33   35   36   32   38   32   35   36   35   36    32
   7E |    9   23    7    9   12    6   17   14   10   12    4 |    72   69   67   68   70   66   68   69   69   66    68
   8E |   17   27   11    9   17    6   19   13   25   15    6 |    53   56   45   45   45   45   50   51   49   43    46
   9E |   17   35   15   13   20    6   22   15   34   13    7 |    76   85   75   74   74   72   81   79   72   73    74
  10  |    6   12    8    6   16    3    9   13   11   15    3 |    22   17   14   21   28   17   19   23   22   20    17
  11E |    8   30   10    8   17    4   16    8   17   16    5 |    37   41   33   33   38   33   31   34   45   27    33
  12  |    9   18    6    8   21    5   18   12   12   24    4 |    34   31   33   36   40   29   33   33   33   30    32
  13  |   10   20   10    9   18    3   19   12    9   19    4 |    44   45   40   45   53   42   44   45   43   41    42
  14  |   11   19    9    9   14    5   13   12   13   19    4 |    44   46   44   53   48   46   46   45   39   45    44
  15  |   13   18    8   11   17    7   17   15    9   24    5 |    31   28   25   36   31   28   34   22   30   30    26
  16  |   12   23    6    8   17    5   19    9   11   22    4 |    33   33   32   36   37   32   34   32   33   28    31
  17  |    9   21    7   12   21    3   20   13   12   15    5 |    28   29   31   39   40   31   32   33   34   27    31
  18  |   10   18    7   12   12    4   16    7    9   30    4 |    22   22   20   25   17   18   25   16   23   16    18
  19  |    6   16    6    9   20    3   18   11   12   16    4 |    34   29   31   35   38   32   29   32   39   27    31
  20  |    6   17   10   15   14    5   15   10   10   30    4 |    15   19   15   23   21   16   25   17   15   23    14
  21  |   10   16    6    9   12    4   14   10    9   17    4 |    23   25   21   25   28   17   28   22   27   17    20
  22  |    8   18    8    8   10    4   16   15   14   32    4 |    21   22   22   26   22   20   23   23   20   22    19
  23  |    9   19    8    8   15    4   19   11    8   24    4 |    39   39   36   44   44   38   42   39   36   34    38
  24E |   10   13    9   12   21    7   15   11   12  ---    4 |   265  192  270  272  267  267  272  272  271  ---   269
  25  |    8   14    9    7   16    4   15    9   10   17    4 |    34   33   34   32   38   31   37   32   36   29    33
  26  |    9   15    5    9   24    3   12   14   11   26    4 |    33   29   33   40   44   35   40   37   29   38    34
 X27  |    7   20   10    7  ---    6   13   10   10   13    4 |    27   31   27   25  ---   25   33   29   28   23    25
  28  |    8   23    7    6   17    5   14   14   16   11    4 |    26   34   28   32   36   27   31   29   31   26    28
  29  |    9   20    5   11   20    6   18   11    8   16    4 |    35   29   31   36   38   30   32   33   37   22    31
 X30  |    3  ---  ---  ---  ---  100  ---  ---  ---  ---    0 |    91  ---  ---  ---  ---   52  ---  ---  ---  ---    88
  31E |   11   16   21   11   12   11   17   19   19   17    6 |    66   57   62   60   62   57   62   60   63   63    59
  32  |    7   12    6    5   24    5   10   12   13   27    4 |    21   19   15   20   30   16   22   18   18   21    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   20    9    9   18    5   16   12   14   21      |T   45   41   41   44   46   41   45   42   44   33    42
 WRMS |    9   19    8    9   16    5   15   11   11   21      |NE  33   31   29   33   35   30   33   30   32   28    31
 MEDI |    9   18    8    9   17    5   15   12   11   17      |MD  34   34   33   36   38   32   34   33   36   29    32

Table 3.1778.5   GPS week: 1778   Day: 5   MJD: 56695.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   10   19    8    7   12    5  ---   11   16   25    4 |    35   37   34   35   30   33  ---   30   39   31    32
   2  |   15   19    5    8   14    3   11   24   13   18    5 |    39   37   29   28   29   28   26   28   29   25    29
   3  |    6   14    6    9   18    5   14   13   18   24    4 |    28   27   24   24   27   24   29   30   31   35    25
   4  |   14   16    8   12   15    6   21   15   10   24    5 |    34   37   31   35   26   30   38   30   30   34    30
   5  |   10   18    5   13   10    5   13   11   13   24    4 |    35   39   31   32   31   30   36   28   32   31    31
   6  |    6   12    6   10   16    4   14   14   12   26    4 |    24   26   23   21   24   21   26   29   25   33    22
   7E |    7   17    6    7   11    4   13   10   16   17    4 |    49   49   46   47   51   45   44   46   55   45    48
   8E |   14   25    7   14   17    3   17   16   28   19    6 |    34   42   31   38   33   31   36   36   40   27    32
   9E |   14   33   11   20   17    6   18   17   27   17    7 |    60   73   59   66   68   59   65   65   64   58    61
  10  |   12   11    4    7   11    4    9   11   11   17    3 |    18   23   17   21   18   18   22   21   17   24    17
  11E |    5   14    5    8   13    2   10    9   10   24    3 |    28   30   26   28   29   27   31   29   29   26    27
  12  |    8   17    5   11   21    5   14   13   13   26    4 |    32   30   25   34   38   25   33   27   29   25    28
  13  |    8   16    6   10   18    5   16   12    8   19    4 |    34   40   35   41   46   34   39   37   36   34    37
  14  |   15   16    7   13   12    4   13   13   17   18    4 |    34   40   40   48   43   38   42   43   38   40    39
  15  |   15   18    6   13   16    5   18   16   16   20    5 |    26   30   21   28   28   22   30   21   29   25    23
  16  |    7   18    8   10   15    6   19   10   16   21    4 |    28   28   25   27   30   23   29   23   27   19    24
  17  |   12   17    6   15   19    5   16   13    8   19    5 |    29   33   29   37   38   28   30   31   28   22    29
  18  |    8   18    5   16    9    4   12   10   15   30    4 |    17   24   17   28   18   16   21   16   16   19    16
  19  |    6   14    8   10   19    4   15   13   17   19    4 |    27   27   26   30   34   25   29   29   27   23    25
  20  |   10   17    8   14    8    4   13    9   12   30    4 |    18   25   13   21   18   14   21   16   17   27    15
 X21  |   14  ---  ---  ---  ---   15  ---  ---   28  ---   20 |    29  ---  ---  ---  ---   32  ---  ---   47  ---    29
  22  |    5   16    6   10    8    3   12   15   19   34    4 |    19   25   20   26   22   19   25   24   24   30    20
  23  |    9   17    7   11   11    4   17   11   11   24    4 |    31   36   32   38   36   32   34   33   30   28    32
  24E |   11   12    7   12   18    6   12   14   15  ---    4 |   175  183  168  169  180  172  168  169  181  ---   172
  25  |    9   13    5   10   15    3   14   12   11   16    4 |    29   28   27   28   33   26   37   26   27   23    28
  26  |   10   10    4   11   16    5   10   13   17   27    4 |    24   27   26   30   32   26   26   28   22   31    25
 X27  |   10   15    8   10  ---    6   12   11   14   13    4 |    24   26   21   19  ---   18   30   23   23   23    21
  28  |   12   18    8    9   16    3   14   12   12   13    4 |    25   33   28   27   34   24   29   27   25   23    26
  29  |   11   21    5    9   19    4   17   13    7   17    4 |    26   27   23   30   33   22   27   27   24   18    24
 X30  |    3  ---  ---  ---  ---   91  ---  ---  ---  ---    0 |    78  ---  ---  ---  ---   34  ---  ---  ---  ---    78
  31E |    9   16    8   10   11    5   15   35   18   28    6 |    72   70   64   68   69   69   66   80   71   76    68
  32  |    8   14    5    7   14    5    9   15    9   29    3 |    20   23   17   20   23   17   24   22   17   26    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   17    6   11   15    5   14   15   15   23      |T   36   39   33   37   38   33   37   35   36   30    35
 WRMS |   10   17    6   11   16    4   14   13   14   23      |NE  28   29   25   29   30   25   29   26   27   26    27
 MEDI |   10   16    6   10   15    5   14   13   14   21      |MD  29   30   26   30   32   26   30   28   29   27    28

Table 3.1778.6   GPS week: 1778   Day: 6   MJD: 56696.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    8   21   10   13   13    7  ---   13   11   25    5 |    43   46   48   44   41   41  ---   44   45   35    44
   2E |   16   17    8    9   22    6   13   16   13   19    5 |    42   36   30   31   34   29   29   27   33   33    31
   3  |    9   11    6    9   15    5   10   13   12   27    4 |    34   33   35   34   41   33   30   38   30   34    34
   4E |   10   17    7    9   14    5   14   11   10   18    4 |    44   49   46   47   46   45   48   46   49   47    46
   5  |   16   18    6   10   10    5   13   16   13   28    4 |    56   59   52   49   51   50   54   50   57   55    52
   6  |    8   12    6   11   14    5   12   11   12   29    4 |    34   34   38   35   41   34   31   37   30   37    34
   7E |    9   22    7    9   13    3   15    7   11   23    4 |    73   66   68   71   69   68   67   70   70   66    69
   8E |   12   22    8   10   12    5   14   11   21   21    5 |    65   66   60   60   60   59   63   63   62   56    61
   9E |   11   35   10   15   14    9   17   18   26   16    6 |    86   99   85   86   87   83   93   92   85   86    87
  10  |   13   10    4   10   11    4    7    9   12   20    3 |    16   20   17   25   21   18   17   24   26   26    19
  11E |    9   15    6    8   14    3   15   12   13   22    4 |    40   42   38   38   40   38   38   40   42   30    38
  12  |   11   19    7   12   17    4   19    9   11   29    4 |    37   31   33   39   41   31   35   35   31   36    33
  13  |   10   17    7    9   14    4   16   12   11   16    4 |    51   55   52   58   61   54   56   55   51   51    53
  14  |   16   18    7   13   13    5   16   12   11   19    5 |    51   49   57   67   61   57   51   57   58   54    56
  15  |   12   20    7   10   16    5   18   14    8   24    4 |    28   29   23   32   33   26   30   25   25   30    25
  16  |   16   19    6   11   16    4   18   11   12   26    5 |    35   35   34   36   41   33   36   33   33   31    33
  17  |   19   21    7   13   18    3   20   11    9   20    5 |    41   38   39   46   45   37   35   41   37   30    38
  18  |   10   19    6   15   10    6   15   11   11   30    4 |    23   28   20   34   22   22   25   22   25   21    22
  19  |   10   14    7    9   15    4   16   12   13   22    4 |    38   34   36   39   43   36   32   36   34   31    35
  20  |   10   17    7   12    9    6   17   13    9   29    4 |    17   20   17   21   19   17   21   23   21   24    16
 X21  |   10   12    7  ---  ---    4   11   11   13  ---    4 |    12   10    5  ---  ---    6    9    4    6  ---    12
  22  |   10   17    8   10    8    4   14   16   10   35    4 |    25   26   24   30   27   24   25   29   27   30    24
  23  |   11   17    8   11   10    3   16   10   10   24    4 |    46   46   48   57   52   48   47   49   44   42    47
  24E |    8   13    6   12   15    5   11   14   14   19    4 |   240  181  241  240  242  240  239  240  237  122   240
  25  |    7   15    6    8   11    4   14   10   11   19    3 |    34   35   37   35   41   35   41   35   39   31    36
  26  |   11   16    4    9   19    5   11   11    9   32    4 |    38   34   39   47   52   40   36   43   39   45    40
 X27  |   10   16    8    9  ---    5   14    6   13   18    4 |    28   30   30   25  ---   26   32   27   25   25    27
  28  |   10   20    8    9   15    4   15   13   14   13    4 |    35   38   35   37   40   32   36   35   33   34    34
  29  |    9   21    6   12   15    5   21   12   10   19    4 |    35   35   33   42   43   32   32   36   35   25    34
 X30  |    3  ---  ---  ---  ---   97  ---  ---  ---  ---    0 |    62  ---  ---  ---  ---   30  ---  ---  ---  ---    61
  31E |   12   18    9   10   12    5   16   21    9   44    5 |    77   70   68   73   74   70   70   77   76   80    72
  32  |   14   11    5    9   15    6    8   16   11   31    4 |    24   22   17   21   25   18   21   25   26   32    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   18    7   11   14    5   15   13   12   25      |T   47   45   45   49   51   44   45   47   46   42    46
 WRMS |   12   18    7   10   12    5   14   12   11   25      |NE  35   34   33   38   40   32   33   34   33   34    34
 MEDI |   10   17    7   10   14    5   15   12   11   22      |MD  38   35   37   39   41   34   35   37   35   34    35



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 4.1778   GPS week: 1778   MJD: 56690.0-56696.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3013 |U    5     4    16 |U   12    12    39 |U    8     7    17 |
emr | emr 2939 |     9     9    23 |U   13    13    37 |     9     8    21 |
esa | esa 2948 |     7     7    20 |U   12    12    38 |     9     7    21 |
gfz | gfz 2913 |U    8     7    22 |U   13    12    40 |U    7     7    19 |
grg | grg 2848 |     7     6    21 |U   13    13    42 |U   11    11    28 |
igr | igr 2954 |     6     6    20 |    12    11    38 |     7     6    18 |
igs | igs 2933 |     7     7    20 |    13    12    39 |     7     7    17 |
jpl | jpl 2885 |    10    10    25 |U   13    15    42 |U   11    10    30 |
mit | mit 2962 |    11    11    27 |U   14    15    44 |U   40    18    48 |



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 5.1778.0   GPS week: 1778   Day: 0   MJD: 56690.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3024 |  ----  ----  ---- |    12    11    40 |     6     4    15 |
emr | emr 2968 |  ----  ----  ---- |    12    13    32 |     7     6    17 |
esa | esa 2976 |  ----  ----  ---- |    12    12    36 |     8     5    20 |
gfz | gfz 2967 |  ----  ----  ---- |    14    12    35 |     7     6    21 |
grg | grg 2869 |  ----  ----  ---- |    13    12    37 |    13    27    37 |
igr | igr 2969 |  ----  ----  ---- |    13    11    35 |     7     5    21 |
igs | igs 2933 |  ----  ----  ---- |    12    11    33 |     5     4    17 |
jpl | jpl 2968 |  ----  ----  ---- |    15    16    39 |    10     9    23 |
mit | mit 2976 |  ----  ----  ---- |    13    12    39 |     9     8    22 |

Table 5.1778.1   GPS week: 1778   Day: 1   MJD: 56691.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3020 |  ----  ----  ---- |    10     7    30 |     9     8    19 |
emr | emr 2958 |  ----  ----  ---- |    11    12    32 |     8    10    15 |
esa | esa 2880 |  ----  ----  ---- |     9    10    30 |    10     8    28 |
gfz | gfz 2873 |  ----  ----  ---- |    10    10    32 |     8     8    23 |
grg | grg 2864 |  ----  ----  ---- |    11    11    31 |     9     9    20 |
igr | igr 2939 |  ----  ----  ---- |    10     9    29 |     8     5    19 |
igs | igs 2907 |  ----  ----  ---- |    11     9    35 |     7     7    17 |
jpl | jpl 2871 |  ----  ----  ---- |    11    11    31 |     9    10    24 |
mit | mit 2976 |  ----  ----  ---- |    11    15    30 |  ----  ----  ---- |

Table 5.1778.2   GPS week: 1778   Day: 2   MJD: 56692.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3040 |     4     3    10 |     9     9    40 |    10     6    20 |
emr | emr 2872 |     9     7    16 |     9     6    37 |    11    10    21 |
esa | esa 2976 |     6     6    11 |     9     6    40 |    12     6    22 |
gfz | gfz 2872 |     5     7    12 |    11     6    41 |     9     8    25 |
grg | grg 2880 |     6     5    16 |    10     8    43 |    12     7    24 |
igr | igr 2971 |     4     5    10 |     9     7    39 |     8     6    18 |
igs | igs 2968 |     7     5    12 |     9     6    39 |     8     7    19 |
jpl | jpl 2872 |    11    10    23 |    10    10    48 |    10    10    27 |
mit | mit 2976 |     7     4    12 |    15    15    46 |    66    24    73 |

Table 5.1778.3   GPS week: 1778   Day: 3   MJD: 56693.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3028 |     4     6    17 |    15    16    40 |     8     6    14 |
emr | emr 2968 |     8     8    22 |    15    19    44 |     8     5    17 |
esa | esa 2976 |     6     7    19 |    13    15    47 |     9     6    16 |
gfz | gfz 2968 |     6     6    19 |    14    14    40 |     9     7    16 |
grg | grg 2880 |     6     6    19 |    13    16    63 |     7     5    16 |
igr | igr 2975 |     5     7    19 |    15    16    42 |     8     6    15 |
igs | igs 2928 |     6     7    19 |    15    17    44 |     7     6    15 |
jpl | jpl 2968 |     8     9    23 |    18    19    45 |     8     8    19 |
mit | mit 2976 |    13    18    49 |    15    17    54 |    11     8    18 |

Table 5.1778.4   GPS week: 1778   Day: 4   MJD: 56694.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3025 |     5     4    18 |    10    10    31 |     7     5    18 |
emr | emr 2967 |    11     9    22 |    10    10    29 |     9     7    28 |
esa | esa 2976 |     6     5    17 |     9    10    31 |     9     6    23 |
gfz | gfz 2967 |     8     6    19 |     9    10    37 |     5     5    17 |
grg | grg 2879 |     5     5    17 |    11    11    37 |    11     8    35 |
igr | igr 2974 |     6     5    16 |    10     9    34 |     6     6    21 |
igs | igs 2970 |     7     6    18 |    12    10    45 |     7     5    18 |
jpl | jpl 2871 |    10     8    24 |    12    14    37 |    14    11    41 |
mit | mit 2976 |     8     8    22 |    12    12    38 |    78    37    78 |

Table 5.1778.5   GPS week: 1778   Day: 5   MJD: 56695.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2922 |     6     5    19 |    13    12    34 |    10    10    20 |
emr | emr 2872 |    11    12    34 |    12    12    25 |     7    10    24 |
esa | esa 2880 |     8     9    32 |    12    12    30 |     6     9    19 |
gfz | gfz 2872 |     9    10    36 |    12    12    32 |     8    10    21 |
grg | grg 2784 |    10     9    34 |    13    12    38 |    13    12    35 |
igr | igr 2880 |     8     9    33 |    12    11    32 |     8     9    19 |
igs | igs 2861 |     8     9    32 |    12    10    30 |     7    10    20 |
jpl | jpl 2775 |    12    13    32 |    12    16    34 |    11    12    39 |
mit | mit 2880 |    20    19    30 |    13    15    30 |    44    22    59 |

Table 5.1778.6   GPS week: 1778   Day: 6   MJD: 56696.0

CENT| CLK EPO  |        BRUX       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3034 |     5     5    17 |    17    16    55 |     7     7    14 |
emr | emr 2968 |     7     8    21 |    20    18    62 |    13     8    26 |
esa | esa 2976 |     8     7    20 |    17    17    52 |     9     7    20 |
gfz | gfz 2872 |    10     7    23 |    18    18    61 |     6     7    14 |
grg | grg 2784 |     7     5    19 |    19    18    44 |    13     7    31 |
igr | igr 2976 |     7     6    19 |    17    16    52 |     7     6    15 |
igs | igs 2964 |     7     6    19 |    18    17    50 |     6     7    14 |
jpl | jpl 2871 |    10     7    22 |    17    21    60 |    12     9    35 |
mit | mit 2976 |     9     7    21 |    20    21    69 |    30    13    38 |


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 6.1778   GPS week: 1778   MJD: 56690.500-56696.500

                                                         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      12    -174      31      1 |      14     19
            |      14      26      85      71      6 |       3
emr   uuuuu |       5      12     170      63     -3 |      23     28
            |      34      31      93     174     17 |       2
esa   uuuuu |       1      12      24     -76      4 |       1     13
            |      19      10      34      69      4 |       3
gfz   uuuuu |      13     -28      42     -34     -2 |      10     16
            |      21      14      85      79      4 |       2
grg   uuuuu |      32       0       8      27      0 |       5     13
            |      14      20      61      68      4 |       1
igr   xxxxx |     -10      -3     -15       2     -3 |       5     12
            |      16      13      42      61      3 |       2
irf   xxxxx |      18       1      10      38      4 |       3     13
            |       8      10      35      34      3 |       3
jpl   uuuux |     -40     -47      86     -24    -18 |      30     35
            |      35      23      39      65     21 |       5
mit   uuuuu |       9     -20      -4     112      9 |      15     20
            |      28      30     113      87      6 |       4
ngs   uuuuu |      20      57     -75      10     -6 |       5     11
            |      57      72      75     100      6 |       2
sio   xxxxx |     146     -50     101     -34     16 |      48     51
            |     118      66     111      77      5 |       7


Table 7.1778.0   GPS week: 1778   Day: 0   MJD: 56690.500

                                                         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 |     -17     -21     -76      81      1 |      10     15
emr   uuuuu |      58      15      68     311    -12 |      26     30
esa   uuuuu |      -8      -7      18    -135      5 |      -4     11
gfz   uuuuu |     -20     -21      55    -195     -1 |       8     13
grg   uuuuu |      13       3     -74       4     -1 |       2     10
igr   xxxxx |     -36       9     -88     -19      1 |       2     10
irf   xxxxx |      15     -21      19      28      5 |      -1      9
jpl   uuuux |       7     -21      66      28     -1 |      32     34
mit   uuuuu |     -23     -76      60      85      7 |       9     12
ngs   uuuuu |      39     182    -157     197     -4 |       3      8
sio   xxxxx |     161     -62     185      38     16 |      38     39

Table 7.1778.1   GPS week: 1778   Day: 1   MJD: 56691.500

                                                         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 |     -37     -17     -86      41     -5 |      11     17
emr   uuuuu |     -25     -44     309     176     -4 |      25     30
esa   uuuuu |       4      16     -39     -92      7 |      -1     14
gfz   uuuuu |      12     -11     -81      -8      0 |       9     16
grg   uuuuu |      19     -40     -41       5     -6 |       4     12
igr   xxxxx |       7      -7     -18      59      1 |       3     12
irf   xxxxx |       9      -2       7      13      1 |       0     12
jpl   uuuux |      -7     -62      62      69    -19 |      35     37
mit   uuuuu |     -28      21      68      -3      3 |      11     16
ngs   uuuuu |      69      94       7     -35      1 |       4     10
sio   xxxxx |     239      -6     182     -70     12 |      42     45

Table 7.1778.2   GPS week: 1778   Day: 2   MJD: 56692.500

                                                         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 |     -48      40    -143     -16      6 |      11     16
emr   uuuuu |      44      53     143     239    -12 |      24     28
esa   uuuuu |     -32      25       6    -186     -1 |       0     13
gfz   uuuuu |       3     -50      -9     -51     -8 |       9     16
grg   uuuuu |      56      18      -8     136      2 |       4     12
igr   xxxxx |       1      18     -43      70     -7 |       4     12
irf   xxxxx |      30      10      68     105      8 |       1     12
jpl   uuuux |     -86     -22     133     -20    -47 |      35     37
mit   uuuuu |      27     -18     154     166     15 |      12     17
ngs   uuuuu |      72     -52    -138     -13     -4 |       5     10
sio   xxxxx |     239     -49     212      27     20 |      45     47

Table 7.1778.3   GPS week: 1778   Day: 3   MJD: 56693.500

                                                         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 |     -25      40    -311     -49     12 |      14     20
emr   uuuuu |     -14      38     108     -48    -19 |      23     27
esa   uuuuu |       6      14      30     -71      8 |       2     14
gfz   uuuuu |      45     -27      -4      16      4 |      11     17
grg   uuuuu |      30     -15     104      71     -7 |       6     15
igr   xxxxx |     -14      -9      31      53     -2 |       6     13
irf   xxxxx |      25       3      32      58      7 |       4     15
jpl   uuuux |     -29     -75     102     -19    -32 |      32     35
mit   uuuuu |      34     -26      41     124     14 |      16     22
ngs   uuuuu |     -66      37     -13      59     -9 |       7     12
sio   xxxxx |     266      32     146     -49     18 |      51     54

Table 7.1778.4   GPS week: 1778   Day: 4   MJD: 56694.500

                                                         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      18    -184     -42     -1 |      16     21
emr   uuuuu |     -24      -5     269    -118    -10 |      21     27
esa   uuuuu |      21      16      59      11      5 |       4     13
gfz   uuuuu |      32     -43     190      43     -1 |      12     17
grg   uuuuu |      41      10       0      49      2 |       5     15
igr   xxxxx |     -25      -9     -24     -46     -6 |       7     13
irf   xxxxx |      10       6     -13       7      8 |       5     15
jpl   uuuux |     -40     -73      19     -28    -36 |      29     35
mit   uuuuu |       5      -9    -109      15     15 |      17     23
ngs   uuuuu |     -13      76    -153      31     -8 |       7     13
sio   xxxxx |       9    -104     -12    -178     21 |      53     56

Table 7.1778.5   GPS week: 1778   Day: 5   MJD: 56695.500

                                                         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 |     -21      -2    -165     145     -2 |      17     21
emr   uuuuu |      10      21      86     -81     29 |      20     27
esa   uuuuu |      23      13      35      -8      6 |       4     12
gfz   uuuuu |       8     -19      69     -45      0 |      11     17
grg   uuuuu |      26      14      65     -82      2 |       5     15
igr   xxxxx |      -2      -3      24     -93     -2 |       6     14
irf   xxxxx |      22       5       2      23      5 |       6     14
jpl   uuuux |     -84     -42     102    -138      9 |      24     34
mit   uuuuu |      46     -29     -87     243      8 |      19     24
ngs   uuuuu |     -34      41     -74    -118    -18 |       6     13
sio   xxxxx |     -37    -160      71      34     12 |      55     57

Table 7.1778.6   GPS week: 1778   Day: 6   MJD: 56696.500

                                                         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 |     -55      25    -256      60     -3 |      17     21
emr   uuuuu |     -11       3     205     -41     10 |      22     29
esa   uuuuu |      -7       7      60     -54     -1 |       5     13
gfz   uuuuu |       9     -29      71       5     -5 |      11     16
grg   uuuuu |      38       9       8       9      5 |       5     14
igr   xxxxx |       0     -21      15      -8     -3 |       5     12
irf   xxxxx |      12       5     -44      31     -1 |       6     15
jpl   uuuux |     -39     -38     115     -57     -3 |      24     34
mit   uuuuu |       4      -6    -155     156      0 |      20     25
ngs   uuuuu |      71      20       3     -50      0 |       4     12
sio   xxxxx |     145       0     -80     -43     10 |      56     59



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