[IGSREPORT-16935] Wk 1508 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Dec 18 04:40:46 PST 2008


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IGS Electronic Report   18 Dec 04:40:49 PST 2008      Message Number 16935
******************************************************************************

Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1508   (Nov 30, 2008 - Dec 06, 2008)

Contacts: J. Ray       (jim.ray at noaa.gov),
          J. Griffiths (jake.griffiths 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. 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, no satellite L1/L2 delay calibration should be
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. 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 (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.

  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 3 weeks (21 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:

igs1508[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1508[0-6].clk  IGS GPS satellite and station clocks in SP3 format.
igs1508[0-6].cls  IGS GPS clock combination summary report.
igs15087.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15087.sum      Complete report.

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

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and
    JPL. The other centres are excluded because they either provide broadcast
    clocks (NGS) or clock corrections are not provided (SIO).  The clock
    information not used is still compared to combination for completeness.  
    The value of 999999.999999 microseconds, according to the sp3 format 
    convention, is used to signify that no clock solution is available and 
    therefore must not be used.

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1478, a new solution from CNES/GRGS (GRG) is included for
    evaluation and statistics 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.
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | PDEL RCMN
                0  |  EMR   | DAEJ MATE MIZU
                0  |  ESA   | 27 AREQ
                0  |  GFZ   | 7 29 31 DAEJ DARW GUAT HARB ISPA
                0  |  MIT   | PDEL
                1  |  COD   | 9 RCMN WROC
                1  |  ESA   | 8 9 27
                1  |  GFZ   | 7 8 9 31 ADE1 HOB2 IRKT MCM4
                1  |  MIT   | DARW KHAJ
                2  |  COD   | 9
                2  |  EMR   | DAEJ SCH2
                2  |  ESA   | 9 27
                2  |  GFZ   | 7 9 13 IRKT PIE1
                2  |  JPL   | MCM4 SCH2
                2  |  MIT   | DARW HARB SCH2
                3  |  COD   | MAS1 WROC WTZR
                3  |  EMR   | MIZU
                3  |  ESA   | WTZR
                3  |  GFZ   | 7 TOW2
                3  |  MIT   | 12 20 BOR1 HARB TOW2
                4  |  GFZ   | 7 FAA1 GOLD
                4  |  JPL   | 9
                4  |  MIT   | 32
                5  |  EMR   | MATE WHIT
                5  |  GFZ   | 7
                5  |  JPL   | 8
                5  |  MIT   | 5 14 32 KHAJ
                6  |  EMR   | FAIR YELL
                6  |  ESA   | CHUR
                6  |  GFZ   | 7
                6  |  JPL   | 9 ZWE2
                6  |  MIT   | 26 BOR1

 5. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) 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.

 6. Small rotations were applied to the all AC orbit and ERP values in order
    to align them to the IGS05. These rotations were estimated in the process
    of the IGS SINEX combination, performed at NRCan by Remi Ferland, are based 
    on the common stations between the individual AC SINEX solutions and the 
    IGS05.snx SINEX. 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 |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |     .3     .0     .7     -26    -21    -10     .04
       EMR  |    6.8    2.6    -.8     123     27     17    -.03
       ESA  |    5.4    5.3     .2      44    -89     24    -.02
       GFZ  |    1.0     .6    1.6      12    -35      8    -.22
       GRG  |    5.0    2.0    -.4      -9    -25     12    -.09
       JPL  |    -.7    1.7   10.6      17    -14     14     .20
       MIT  |    4.3   -1.3   -3.0       7     -5     -4    -.17
       NGS  |    5.5  -10.0   -3.6    -130   -115     88     .04
       SIO  |    2.3    -.5     .6      -8    -38    -11    -.03


 7. 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 navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

 8. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and
    ERPs as generated by NRCan. For more information see IGSMAIL #2750.
    Because of this  change in alignment Table 2 has been enhanced with one 
    additional line per AC. This additional line shows the X- and Y-rotations 
    which were applied to each of the AC orbits prior to the orbit combination. 
    These rotations are based on the difference between the individual AC ERP 
    estimates and the IGS reference frame ERP product. The total rotation of
    the individual AC orbits w.r.t. the IGS combined orbit is the sum of the
    values in the two lines of Table 2 plus the reference frame rotation.

 9. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) the absolute antenna
    model is introduced (IGSMAIL #5272). The antenna phase center offsets and
    phase center variations are given in the file:
        ftp://igscb.jpl.nasa.gov/pub/station/general/igs05.atx

    
ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    
      
Most combination statistics are with respect to the  combined orbits and
consist of five 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 1.1508.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1508.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 2.1508.[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 3.1508.[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 and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1508.0-6).

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 1508 summary.                       (Nov 30, 2008 - Dec 06, 2008)

Table 1.1508.a   GPS week: 1508   MJD: 54800.000-54806.000

         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  243|    0     0     1    42   -16   -44  -.16   11   10 |    -524     370     30    155
        |    0     1     1     6    10    27   .01           |     579     857
emr   73|   -1     0     5  -253  -134   -26   .48   19   19 |     875     599     23    243
        |    1     1     1    23    23    23   .02           |    2355    1066
esa  135|    1    -1    -1   -75    13    -6   .33   10   10 |    -799    -296     27    111
        |    0     0     1    18    21    20   .03           |     859     772
gfz  198|    1     0    -3   -35    11   125  -.13    9    9 |       6      12     29    135
        |    0     0     1    14    11    55   .05           |     304     632
grg   82|    2     3    11    47   -19   -20  1.14   46   43 |    -527     351    112    382
        |    2     1     3    25    26    60   .05           |     577     858
igr  n/a|    0    -1     1    -3   -57   -49   .10    7    7 |   -4060    2191     30     76
        |    0     0     1    11     7    21   .03           |    5757    1048
jpl  135|   -2     0     3   -32   -22   -12   .54   19   17 |    2103     629     29    121
        |    1     1     1     6    25    29   .03           |    2094     996
mit  272|    0     0    -1   -29   -78   -19  -.31   13   11 |    -188     -71     28    182
        |    0     0     1    29    32    12   .02           |     304     672
ngs  236|    0    -1     1   259   141   -52  -.23   12    9 |    -498     298   2258   3916
        |    0     0     1    26    35    18   .04           |     578     857
sio  109|   -1     2     0     7     8   -28  -.18   24   22 |     ---     ---    ---    ---
        |    1     0     1    13    22    17   .03           |     ---     ---


Table 1.1508.b   GPS week : 1508   MJD: 54800.000-54806.000   

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



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
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1508.0   GPS week: 1508   Day: 0   MJD: 54800.000                            

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  243|    0     0     1    36   -17   -51  -.15   12   11 |     365   -1154     33    155
        |                    -11   -24                       |
emr   73|    0    -3     3  -222  -114     0   .50   19   19 |   -1256    -658     23    268
        |                     22   -14                       |
esa  135|    2     0     0   -67    27    -4   .34   11   11 |      84    -809     28    112
        |                    -10    -5                       |
gfz  198|    1     0    -5   -32     9   122  -.06   11   11 |     208    -543     26    117
        |                    -15   -16                       |
grg   82|    3     5    16    57    -2   -78  1.19   48   44 |     357   -1175    116    440
        |                     27     2                       |
igr  n/a|    0    -1     0    21   -57   -19   .12    8    7 |  -11167     846     33     80
        |                    -57   -24                       |
jpl  135|   -2     0     2   -21   -25     2   .59   20   19 |      24    -770     26    129
        |                     -5   -68                       |
mit  272|    0     1     0   -43   -65   -21  -.30   12    9 |     101    -688     20    157
        |                     12    17                       |
ngs  236|    0    -1     1   258   141   -46  -.23   12    9 |     365   -1194   2299   3841
        |                     -1    20                       |
sio  109|   -3     3     1    -8    17   -31  -.20   24   21 |     ---     ---    ---    ---
        |                     14   -42                       |

Table 2.1508.1   GPS week: 1508   Day: 1   MJD: 54801.000                            

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  243|    0     0    -1    37   -32   -24  -.16   10    9 |    -720     640     26    137
        |                      9   -25                       |
emr   73|   -1     0     3  -235  -118   -30   .51   18   18 |   -1561     224     22    245
        |                      5     9                       |
esa  135|    1    -2     0   -66    27   -14   .32   10   10 |    -515   -1619     23    109
        |                      5     7                       |
gfz  198|    1     0    -1   -38    20   143  -.17   10   10 |     -99      21     27    149
        |                    -15   -34                       |
grg   82|    3     3    17    -2   -47    -8  1.17   46   42 |    -714     602    108    344
        |                     51   -30                       |
igr  n/a|    0     0     1    -2   -59   -43   .10    7    6 |   -9924    2043     29     72
        |                    -14    -9                       |
jpl  135|   -2     0     3   -35   -67   -32   .55   18   17 |    -306     515     27    119
        |                    -30    -4                       |
mit  272|   -1     1    -1    -6   -79   -37  -.28   13   11 |     -61    -438     22    162
        |                    -14     6                       |
ngs  236|    0     0     0   242   178   -48  -.22   13    9 |    -705     593   2318   3741
        |                     12   -18                       |
sio  109|   -1     2     0   -14   -18   -52  -.23   23   23 |     ---     ---    ---    ---
        |                     22   -22                       |

Table 2.1508.2   GPS week: 1508   Day: 2   MJD: 54802.000                            

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  243|    0     0     0    48    -6   -85  -.16   10    9 |    -557     525     26    129
        |                     -4   -47                       |
emr   73|    0     0     4  -260  -117   -61   .48   18   18 |   -1218     796     24    251
        |                     59    -9                       |
esa  135|    1    -2     0   -65    43   -39   .36   11   10 |     360    -366     26    106
        |                     11    12                       |
gfz  198|    0     0    -5   -48    -9   234  -.17   10   10 |     388    -721     27    137
        |                    -14   -24                       |
grg   82|    0     4    11    81   -11   -80  1.10   44   40 |    -562     501    106    406
        |                     25   -46                       |
igr  n/a|    0    -1     0    -9   -67   -74   .13    7    6 |   -7372    2389     28     77
        |                     -2    11                       |
jpl  135|   -1     0     5   -33   -43   -28   .53   18   16 |     535     966     30    120
        |                     25   -44                       |
mit  272|    0     0     0   -22   -99   -28  -.29   11   10 |      83    -892     25    170
        |                      9    -3                       |
ngs  236|    0    -1     0   243   181   -49  -.17   12    9 |    -478     346   2068   3639
        |                     24     5                       |
sio  109|    0     2     0     8    -7   -39  -.19   23   21 |     ---     ---    ---    ---
        |                    -18   -19                       |

Table 2.1508.3   GPS week: 1508   Day: 3   MJD: 54803.000                            

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  243|    0     0     2    39    -9   -57  -.14   13   12 |   -1586    1742     31    164
        |                     16   -50                       |
emr   73|   -1     1     6  -267  -121   -20   .50   18   18 |     362    2612     24    235
        |                     50    -6                       |
esa  135|    0    -2     0   -69    15   -20   .37    9    9 |    -833     190     30    122
        |                      1     8                       |
gfz  198|    1     0    -4    -5    10   128  -.20    8    8 |    -491     911     31    155
        |                    -27   -40                       |
grg   82|    3     6     8    46   -21    45  1.07   48   42 |   -1590    1729    120    388
        |                     36    26                       |
igr  n/a|    1     0     0   -11   -55   -51   .14    8    7 |   -4370    4122     33     80
        |                    -24    12                       |
jpl  135|   -2     1     2   -35   -11     0   .58   19   17 |    1969    2436     31    123
        |                     -9   -82                       |
mit  272|    0     1     0   -26  -107   -11  -.31   12   11 |    -770     963     24    163
        |                     -7     4                       |
ngs  236|    0     0     1   239   145   -61  -.24   12    9 |   -1574    1705   2519   4409
        |                     62    50                       |
sio  109|   -1     2    -1    10     0   -38  -.13   24   22 |     ---     ---    ---    ---
        |                     -3   -18                       |

Table 2.1508.4   GPS week: 1508   Day: 4   MJD: 54804.000                            

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  243|    0     2     3    53   -17     0  -.14   12   11 |    -361     182     35    168
        |                      3     6                       |
emr   73|   -3     0     6  -272  -175   -38   .48   20   20 |    2478    1179     26    230
        |                     67    65                       |
esa  135|    0    -1    -3  -114    -9     3   .34   10   10 |   -1581      63     25    100
        |                     40    23                       |
gfz  198|    1    -1    -1   -46    21   107  -.13    8    8 |     227    -370     29    129
        |                      9     5                       |
grg   82|    6     3     8    45   -30    68  1.19   45   42 |    -350     160    109    384
        |                     27    56                       |
igr  n/a|    0    -1     0    -7   -50   -61   .07    7    7 |    -946    2699     27     65
        |                    -26   -13                       |
jpl  135|   -3     0     3   -24   -14   -15   .52   19   18 |    3443     978     27    115
        |                    -40  -164                       |
mit  272|    0     0    -2    15   -12   -16  -.33   16   13 |    -162    -228     40    263
        |                    -28   -44                       |
ngs  236|    0    -1     0   240    75   -87  -.21   11    9 |    -285      92   2427   3862
        |                      4   114                       |
sio  109|    0     2     0    13    45    -2  -.18   25   26 |     ---     ---    ---    ---
        |                      7   -16                       |

Table 2.1508.5   GPS week: 1508   Day: 5   MJD: 54805.000                            

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  243|    0     2     1    44    -5   -62  -.16   11   10 |    -396     145     33    181
        |                    -15   -64                       |
emr   73|   -1     0     6  -283  -159   -41   .45   18   18 |    3472     106     25    222
        |                     56    42                       |
esa  135|    0     0    -3   -61     8    19   .30    9    9 |   -1073    -333     30    112
        |                     -8    21                       |
gfz  198|    1     0    -2   -38     7    77  -.09    9    9 |    -238     786     33    128
        |                    -36   -33                       |
grg   82|    0     2     9    46    26   -15  1.13   45   48 |    -404     131    108    397
        |                    -32     2                       |
igr  n/a|    0     0     0   -12   -44   -71   .07    7    7 |    1566    1830     33     73
        |                    -27    -8                       |
jpl  135|   -1     2     3   -41     7    40   .50   19   19 |    4262     238     33    128
        |                     31   -83                       |
mit  272|    0     0    -1   -41  -104   -24  -.33   14   12 |    -389     370     35    174
        |                     19    -3                       |
ngs  236|    0    -2     1   289   137   -39  -.24   13    9 |    -386      81   2176   3965
        |                    -28    17                       |
sio  109|    0     1     0    23    27   -21  -.19   24   22 |     ---     ---    ---    ---
        |                    -18   -38                       |

Table 2.1508.6   GPS week: 1508   Day: 6   MJD: 54806.000                            

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  243|    0     0     1    38   -27   -32  -.18   12   11 |    -413     514     28    153
        |                     -9   -35                       |
emr   73|   -4     1     7  -231  -138     2   .46   19   19 |    3849     -60     23    256
        |                    -12    16                       |
esa  135|    2     0    -4   -84   -16    13   .29   10    9 |   -2039     799     28    119
        |                     21     7                       |
gfz  198|    0     0    -1   -39    20    66  -.12    9    9 |      53       3     31    131
        |                    -37   -43                       |
grg   82|    2     1    11    56   -49   -73  1.16   49   47 |    -426     510    117    320
        |                    -15     8                       |
igr  n/a|    0     0     3    -4   -65   -24   .11    7    7 |    3789    1412     31     85
        |                    -29    -9                       |
jpl  135|    0     2     4   -33    -2   -50   .53   18   16 |    4796      46     31    115
        |                     27   -34                       |
mit  272|    1     0    -5   -77   -79     1  -.33   16   14 |    -123     413     33    185
        |                     33   -17                       |
ngs  236|    0     0     4   306   132   -31  -.30   12    9 |    -427     465   2002   3960
        |                    -40    32                       |
sio  109|   -1     2    -3    17    -4   -10  -.18   25   22 |     ---     ---    ---    ---
        |                    -40    -9                       |

       
       
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 3.1508.0   GPS week: 1508   Day: 0   MJD: 54800.000                            

        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  |    4  ---  ---  ---  ---   44  ---  ---  ---  ---    0 |    19  ---  ---  ---  --- 9999  ---  ---  ---  ---    22
   2  |   11   20   10   12   38    8   23    9   11   24    5 |    23   36   26   14   41   26   38   26   24   24    22
   3  |    9   12   10    6   58    8   16    9   12   69    7 |    24   28   26   22   36   26   30   23   27   67    23
   4  |   11   15   10    7   29    6   10    7    8   28    4 |    12   20   19   18   27   16   16   16   17   22    13
   5  |   12   10    8    7   24    4    9    7    9   22    3 |    20   21   17   14   26   15   20   15   16   27    14
   6  |    8   13    9    6   73    6   17    6   12   19    4 |    25   28   29   25   49   29   31   25   31   25    27
   7E |   10   23   10   13   45    7   20    9   11   12    5 |    14   27   18   16   41   16   25   14   15   17    13
   8E |   15   15   16   13   75    7   20   12   24   18    6 |    24   30   29   21   48   25   29   22   29   25    21
   9E |   15   21   11   12   69    7   18   13   18   18    5 |    31   31   27   23   46   24   30   24   32   28    23
  10  |   14   17    8    8   42    7   12   15   11   17    4 |    28   40   31   31   45   30   36   33   32   30    30
  11  |    8   20   10    8   47    8   20    7    9   26    4 |    20   39   27   25   60   26   38   22   23   22    23
  12  |   14   19   14    9   34   10   22   12   10   20    5 |    25   32   26   21   47   24   34   21   21   19    20
  13  |   10   25    9   10   47    9   24    8   12   15    5 |    15   35   18   17   49   21   31   16   18   13    16
  14  |   11   23   11   10   48    9   25   11   11   23    5 |    18   29   24   25   35   20   28   19   21   25    19
  15  |    8   24   12   11   28    9   20    7   11   24    5 |    14   29   20   16   39   17   29   16   15   21    15
  16  |   13   29   13    7   49    9   29   25   14   24    7 |    21   37   22   18   57   24   35   27   23   25    19
  17  |   10   14    9   13   78   10   15    4    9   26    4 |    33   39   35   39   74   36   38   35   34   32    34
  18  |    8   22   14   11   69    9   23   10    9   20    5 |    27   37   36   33   52   30   35   30   34   29    31
  19  |   12   13    9   11   49   11   22    9   13   24    5 |    30   33   34   32   42   32   36   28   30   31    30
  20  |   23   27    9   12   36    6   21   17    9   15    6 |    79   82   76   82   85   76   84   79   83   81    80
  21  |    9   15    9    9   36    8   16   10    6   13    4 |    20   29   21   23   48   23   29   20   26   20    21
  22  |    9   20   13    9   40    8   21    8   16   20    5 |    16   20   22   18   43   14   19   19   20   21    15
  23  |    9   29    8   14   30    9   30    9    8   17    5 |    15   39   21   20   40   21   34   15   18   19    16
  24  |    9   18    7   11   41    5   15   10   10   23    4 |    13   29   19   18   31   18   30   17   25   32    19
  25E |   20   21   15   16   37    6   20   27   19   19    7 |    26   33   30   28   39   29   37   44   34   32    29
  26  |    8   12    8   10   22    6   10    7    8   20    3 |    16   28   24   19   31   19   25   17   19   24    18
  27E |   16   17    9   10   73    7   19    8   18   19    5 |    28   33   29   28   40   29   29   26   34   29    26
  28  |    7   26   12   12   49   12   25   14   14   31    6 |    22   33   22   25   39   22   32   32   23   31    20
  29  |   11   11    7    9   31    4   13    7   11   29    4 |    38   43   42   39   40   40   42   37   40   38    38
  30  |   12    9    8    7   26    4    8    8   11   17    3 |    26   25   24   20   24   21   22   18   19   25    20
  31E |    8   19   15   16   49    6   23    8    9   14    5 |    23   30   24   25   44   23   30   19   23   22    22
  32  |   12   21   13    5   49    6   23   13   11   20    5 |    17   27   27   23   32   23   36   25   27   26    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   19   11   11   48    8   20   12   12   24      |T   23   32   27   25   43   25   32   25   26   28    23
 WRMS |   11   19   11   11   44    7   19    9    9   21      |NE  21   31   24   22   41   23   31   22   23   27    21
 MEDI |   10   19   10   10   45    7   20    9   11   20      |MD  22   31   26   23   41   24   31   22   24   25    21

Table 3.1508.1   GPS week: 1508   Day: 1   MJD: 54801.000                            

        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  |    4  ---  ---  ---  ---   37  ---  ---  ---  ---    0 |    26  ---  ---  ---  --- 9999  ---  ---  ---  ---    30
   2  |   10   21   13   13   39   10   22   12   11   24    5 |    15   28   17   12   32   18   27   20   22   23    16
   3  |    8   10    7    5   41    7   13    9   12   66    6 |    13   20   19   15   32   16   20   14   23   59    16
   4  |   10   14   12    8   34    5   10    9    9   21    4 |    11   19   16   15   27   13   14   17   19   23    14
   5  |    8   10    9   10   32    4    9   10   12   23    4 |    10   21   18   16   28   16   20   16   16   25    15
   6  |    6   10   10   10   41    6   12   10   12   21    4 |    17   18   18   15   27   17   18   17   24   16    16
   7E |   10   20    8   10   32    6   16    9    5   13    4 |    13   25   19   18   31   15   25   13   17   18    15
   8E |   15   17   16    9   57    6   16   13   24   20    6 |    24   29   23   28   34   25   30   26   33   28    23
   9E |   12   19    8   13   69    8   19   13   19   16    5 |    17   24   17   20   33   18   22   14   33   18    16
  10  |   11   15   11    8   38    8   12   18    9   15    4 |    25   36   31   30   38   28   35   27   28   30    28
  11  |    6   18   10   12   67    6   20   10   10   21    4 |    15   33   21   20   59   20   34   16   16   17    17
  12  |   10   20   15    9   48    9   24   13   11   20    5 |    14   32   22   17   42   21   33   16   17   15    17
  13  |   10   20   10   14   47    9   22    7    7   18    5 |    14   32   20   25   46   20   31   16   18   16    17
  14  |   13   20   13   12   46    9   25   12   11   24    5 |    14   32   23   25   33   21   29   19   26   27    20
  15  |    8   20    9   10   33    9   22   11   13   25    5 |    10   26   18   11   34   15   26   13   18   13    12
  16  |   12   24   10    9   34   10   25   20   14   25    6 |    16   33   17   17   34   20   32   16   24   20    17
  17  |    6   13   11    9   84    6   17    7   11   23    4 |    15   21   15   15   54   16   21   17   18   20    14
  18  |    6   20   10   11   55    6   22    9   12   19    5 |    24   35   31   27   39   28   34   26   33   28    28
  19  |   10   13    7    5   43    7   13   11   10   23    4 |    19   26   21   20   29   22   24   17   25   22    20
  20E |    6   20    9   12   36    7   17   10   10   12    4 |    40   47   41   41   57   39   47   45   43   44    43
  21  |   10   16   10    8   42    7   18    9   10   12    4 |    16   26   16   20   47   19   25   18   23   20    18
  22  |    7   18    8   10   40    7   20   10   13   16    4 |    15   25   16   16   35   16   21   16   30   18    18
  23  |    8   27   10   15   29    8   26   11   11   18    5 |    12   34   20   21   40   19   32   11   15   16    14
  24  |    6   16    9    8   37    4   14   14   10   22    4 |    14   26   20   16   26   17   26   18   24   30    19
  25E |   19   18   14   14   43    6   17   28   19   20    7 |    26   35   29   27   39   28   36   37   36   29    27
  26  |    8   10    7    7   23    6   12   12   12   15    3 |    12   24   18   16   34   17   20   14   21   22    14
  27E |   15   17    9    9   84    6   16    8   19   18    5 |    21   26   18   23   43   20   24   19   29   23    18
  28  |    8   22    8   11   43    9   23   16   13   28    5 |    18   28   18   22   35   20   27   29   25   30    19
  29  |    9    9   10    5   36    5   12    8   13   26    4 |    21   28   27   25   36   24   27   24   25   24    25
  30  |    8   12    7    9   28    5   10   10    6   20    3 |    15   24   18   17   24   17   18   16   20   20    16
  31E |    9   19   13    8   32    7   22   15   11    9    5 |    27   39   33   32   41   31   35   30   30   24    29
  32  |    8   20   11    8   53    6   19   18    8   14    5 |    14   23   20   18   46   17   28   19   19   21    16
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18   10   10   46    7   18   13   13   23      |T   17   28   21   20   37   20   27   19   24   23    19
 WRMS |    9   18   10   10   42    6   17   11    9   23      |NE  15   26   19   18   36   18   25   17   20   22    17
 MEDI |    8   18   10    9   41    7   17   11   11   20      |MD  15   26   19   20   35   19   27   17   24   22    17

Table 3.1508.2   GPS week: 1508   Day: 2   MJD: 54802.000                            

        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  |    6  ---  ---  ---  ---   24  ---  ---  ---  ---    0 |    25  ---  ---  ---  --- 9999  ---  ---  ---  ---    28
   2  |   11   27   10   14   35    9   22    9   11   18    5 |    16   34   17   18   34   19   28   18   20   19    17
   3  |    9   10    7   10   46    6   16    8    9   66    6 |    24   28   28   32   29   27   31   28   28   60    27
   4  |    9   12    6    9   25    5   10    6    9   27    4 |    12   16   13   21   19   13   16   16   20   22    14
   5  |    8   12    9    8   23    6   10    8   11   21    3 |    14   20   19   18   26   15   18   15   22   24    16
   6  |    5    9    8   12   51    4   12    7    9   20    3 |    18   19   21   24   29   18   21   20   24   22    20
   7E |   10   19    9   10   39    7   17    9    9   12    4 |    17   28   21   19   30   19   26   18   19   19    18
   8E |   16   18   29   11   63    5   17   17   29   23    7 |    19   24   32   22   44   19   26   21   35   20    18
   9E |   13   19   11    9   62    9   16   13   23   14    5 |    19   26   21   22   33   23   21   17   37   23    20
  10  |   11   14    8   11   62    9   14   15    7   15    4 |    32   38   36   38   70   34   39   35   34   37    34
  11  |    7   14    8   12   73    7   19   10   11   23    4 |    19   35   24   30   64   25   35   22   20   21    23
  12  |   13   18   14    9   43   10   24   12    9   20    5 |    17   30   24   21   42   22   33   20   21   18    20
  13  |    9   21   12   11   35    8   20    7    6   17    4 |    14   33   21   24   47   21   32   15   21   17    18
  14  |   11   17    9   10   41   10   22   10    7   21    4 |    15   28   24   27   33   20   27   19   27   24    21
  15  |    9   22    7   10   34   10   22    9    9   26    5 |    12   28   20   22   37   19   26   13   19   15    16
  16  |    9   25   10   11   39    8   24   12   12   25    5 |    18   31   19   20   41   21   30   18   26   23    19
  17  |    8   13    7   11   85    7   11    8    9   21    4 |    22   27   24   30   66   24   25   25   28   25    24
  18  |   16   22   11   10   50    6   23    9    9   21    5 |    42   54   55   52   71   49   55   51   50   50    50
  19  |    9   11    7    7   34    5   10    7    8   20    3 |    19   26   25   25   30   21   27   21   28   22    23
  20E |    7   20   12    9   40    7   21   10    8   11    4 |    26   39   28   33   47   33   38   29   34   34    30
  21  |   10   16    8    6   35   10   18    9   10   14    4 |    15   27   16   20   44   20   26   15   24   18    17
  22  |    7   15    8    9   24    7   17    7    9   14    3 |    17   23   19   18   32   17   20   17   26   19    19
  23  |    8   27   12   12   24    7   26   10    8   18    5 |    13   36   22   20   38   21   33   14   21   17    17
  24  |    8   17   11    8   34    5   13   13    9   22    4 |    10   23   18   17   30   13   22   13   24   27    15
  25E |   18   20   15   13   43    7   18   26   23   22    7 |    18   31   25   24   43   22   34   30   33   19    20
  26  |    8   14    8    9   22    6   10    9   12   20    4 |    29   35   32   34   39   29   31   30   31   27    30
  27E |   15   17    9   10   52    5   17    9   20   19    5 |    19   26   23   26   42   20   23   21   32   25    21
  28  |    8   21    7   12   45   10   21   16   14   27    5 |    16   28   18   24   39   19   27   25   26   26    19
  29  |    9   10    8    6   42    5   11    8    9   26    4 |    26   30   34   30   33   28   28   26   30   27    29
  30  |    9   11    8    8   32    4    9    8   11   19    3 |    17   19   22   22   25   18   17   14   26   20    18
  31E |    8   18   12   10   33    7   20   10   11   14    4 |    17   29   26   25   35   21   27   20   25   23    21
  32  |    8   19   13    5   27    7   20   15    9   12    4 |    18   27   20   21   37   18   31   22   22   23    19
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   10   18   11   10   44    7   18   11   12   23      |T   19   28   24   25   39   22   28   21   26   24    21
 WRMS |    9   18   10   10   40    6   16   10    9   21      |NE  17   27   21   23   37   20   26   19   24   23    20
 MEDI |    9   17    9   10   39    7   17    9    9   20      |MD  18   28   22   24   37   21   27   20   26   23    20

Table 3.1508.3   GPS week: 1508   Day: 3   MJD: 54803.000                            

        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
------+--------------------------------------------------------+---------------------------------------------------------
   2  |   13   21    8   11   41    9   20   11    6   17    4 |    22   34   22   15   38   23   30   20   27   19    19
   3  |   10   12    9    5   43    7   14    8    9   67    6 |    31   30   32   29   29   28   32   26   31   61    27
   4  |    9   13    7    8   33    7   10   10   12   21    4 |    17   21   15   18   20   18   21   18   21   19    15
   5  |   15   16    8    4   22    5   10   11    6   21    4 |    22   24   17   12   23   15   21   13   17   23    14
   6  |    8    8    9    5   62    4   10    9    9   21    3 |    26   24   24   25   40   23   25   25   30   21    24
   7E |    9   19   10    8   31    8   17   10    9   11    4 |    25   30   24   26   38   24   30   23   23   27    23
   8E |   13   19   15    8   87    7   18   15   29   29    6 |    22   30   24   22   44   24   26   31   39   34    23
   9E |   21   21    9    9   71    8   16   18   20   17    6 |    37   31   30   25   40   27   29   26   39   29    27
  10  |   15   17    6    7   47    8   17   15   11   18    4 |    38   52   43   41   62   41   48   41   41   39    41
  11  |   10   13    8    9   66   10   20   10   11   23    4 |    20   35   24   22   54   24   34   21   23   18    21
  12  |   18   20   12    6   40   11   25   14    8   21    5 |    29   32   27   21   42   25   36   21   22   19    22
  13  |   10   23   12    9   41   10   23    8   11   18    5 |    15   33   19   14   46   18   32   13   21   14    14
  14  |   16   18    8    8   49   11   25    8    9   26    5 |    17   30   20   18   33   21   29   16   25   22    18
  15  |   13   23    8   10   31   11   25   10    9   26    5 |    20   30   20   20   40   19   28   17   23   20    18
  16  |   11   24   11    8   43   10   27    9   11   25    5 |    20   35   21   18   48   22   31   18   23   25    19
  17  |    9   16    8    9   90    8   14   12    8   21    4 |    31   33   28   30   68   32   32   32   34   32    29
  18E |   18   21    8   14   40    7   26   13   10   31    6 |    54   62   60   64   75   62   66   63   62   68    60
  19  |    9   10    9    6   51    7   12    8    7   23    3 |    28   29   27   28   39   27   29   27   29   30    26
  20E |   10   22   11    7   42    8   22   11   10   12    4 |    19   33   24   21   44   24   32   20   23   22    20
  21  |   14   19    8    6   37    8   19   11   10   14    4 |    19   31   22   19   46   23   29   20   24   19    20
  22E |   12   21   10   13   31    7   20   13   15   18    5 |    16   24   19   22   40   20   20   24   29   20    18
  23  |   10   29   10   11   28   11   28   11   11   17    5 |    15   38   19   18   40   19   33   12   20   15    15
  24  |   10   16    7    6   35    5   13   13    9   22    4 |    15   27   22   17   31   18   26   18   23   31    19
  25E |   16   20   14   13   35    8   18   23   17   19    6 |    25   32   29   25   46   26   35   38   33   26    26
  26  |   11   12    6    6   21    6   14   11    8   19    4 |    29   34   29   27   34   30   32   25   34   24    29
  27E |   14   17    9    7   68    6   18   10   20   19    5 |    25   29   22   26   40   25   27   28   33   31    23
  28  |    9   21    8   10   47   11   23   17   11   27    5 |    20   31   19   23   37   22   28   30   25   26    20
  29  |   12   10    6    5   45    6   14   10   13   30    4 |    32   39   35   31   40   37   38   33   36   31    33
  30  |   12   10    7    5   36    5   12   11    7   16    3 |    22   21   21   18   31   19   22   17   20   21    17
  31E |   11   18    9    9   38    7   22    8   13    8    4 |    29   40   32   28   46   30   37   30   29   29    29
  32  |   10   19    9    6   30    7   21   17    8   13    4 |    18   30   23   23   42   22   33   22   25   25    21
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   13   18    9    8   48    8   19   12   12   24      |T   24   32   25   24   41   25   31   24   28   27    23
 WRMS |   12   18    9    8   42    7   17   11    9   22      |NE  22   30   23   21   39   23   29   21   25   24    20
 MEDI |   11   19    9    8   41    8   18   11   10   21      |MD  22   31   24   22   40   24   30   23   25   25    21

Table 3.1508.4   GPS week: 1508   Day: 4   MJD: 54804.000                            

        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  |    4  ---  ---  ---  ---  150  ---  ---  ---  ---    0 |    50  ---  ---  ---  --- 9999  ---  ---  ---  ---    48
   2  |   14   28   12   11   49    7   25   16    8   18    6 |    26   40   23   22   32   27   41   24   26   25    23
   3  |   10   12    9    9   43    8   14   23    9   69    7 |    45   52   50   47   40   47   52   55   52   63    48
   4  |   13   14   11    8   23    6   12   14   10   24    4 |    18   22   22   20   29   20   23   20   21   24    17
   5  |   10   16    9    8   24    6   12   15    7   19    4 |    16   29   22   17   27   18   26   16   16   25    16
   6  |    9   11   10    5   48    6   13   12    8   19    3 |    22   31   30   27   25   26   33   28   29   25    26
   7E |    9   25    9   10   32    7   16    8    6   10    4 |    18   34   27   25   42   23   34   20   22   22    21
   8E |   13   16   21    9   59    8   16   15   24   22    6 |    18   29   25   22   27   24   30   23   34   23    20
   9E |   18   22   11   10   71    8   19   23   21   15    6 |    26   33   31   28   41   27   35   30   36   31    26
  10E |   12   19   10   10   48    7   20   18   10   20    5 |    47   52   52   52   58   48   55   47   53   48    48
  11  |    9   15    9    8   69    7   20   12   12   19    4 |    23   37   31   25   61   27   40   26   27   23    26
  12  |   15   22   10    8   45    8   26   17    8   19    5 |    20   35   28   25   51   25   39   25   25   24    23
  13  |    9   22   13   10   43    5   20   10    6   16    4 |    19   36   24   22   49   23   36   21   21   18    19
  14  |   13   19    8    7   54    8   25   13    7   25    5 |    16   31   23   22   37   21   32   19   25   25    20
  15  |   12   24    9    8   38    8   25   13   10   32    5 |    19   34   29   24   46   23   34   24   24   24    22
  16  |   13   27    7    6   32    7   21   12    9   29    5 |    19   37   24   21   36   22   33   21   28   26    21
  17  |   10   12   11    8   52    6   15   14   11   21    4 |    29   33   30   27   42   26   33   28   26   28    26
  18E |   11   24    8   11   35    7   24   13    7   28    5 |    45   48   44   41   61   43   49   47   46   42    43
  19  |   10   11    7    5   60    6   13   10    8   26    4 |    26   33   31   28   42   28   35   27   32   30    28
  20E |    8   22   10    8   40    6   19   11    8   10    4 |    19   34   27   22   44   23   32   21   23   23    21
  21  |   13   41    8    6   39    6   20   12    9   17    6 |    20   49   20   21   51   24   34   22   23   25    21
  22E |    8   17    8    9   25    9   21   17   11   13    4 |    23   28   22   27   33   24   28   26   30   27    24
  23  |    8   28   13   10   32    7   21   11   10   18    5 |    22   42   31   26   44   27   38   23   24   20    23
  24  |   11   15    8    6   32    5   13   12    8   24    4 |    17   27   22   21   31   20   31   22   23   33    21
  25E |   17   18   12   10   40    5   15   23   16   20    6 |    23   31   27   24   42   25   34   36   29   31    24
  26  |   13   17    8   10   47    9   17   45   12   40    8 |    77   83   82   82   77   78   85   87   79   69    79
  27E |   16   20   10    9   65    7   16   12   18   22    5 |    22   33   24   29   30   28   30   30   36   32    25
  28  |    9   21   10   12   45    5   27   14   12   26    5 |    18   33   19   20   39   21   37   28   21   29    18
  29  |   11   12    9    6   35    7   16    8    8   26    4 |    28   34   35   28   38   30   35   29   30   28    29
  30  |   11   12    9    7   33    4   13   13    6   15    3 |    21   29   24   20   26   20   29   19   18   22    18
  31E |    8   22    9    7   36    7   20   15    8   10    4 |    23   37   27   24   49   26   36   22   23   20    23
  32  |   11   18   12    6   32    7   23   15    8   11    4 |    23   34   32   26   33   26   38   26   26   28    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   20   10    8   45    7   19   16   11   25      |T   26   36   30   27   41   28   37   28   29   29    27
 WRMS |   11   20   10    8   42    7   18   13    9   26      |NE  26   37   30   27   40   27   37   28   28   29    27
 MEDI |   11   19    9    8   40    7   19   13    9   20      |MD  22   34   27   25   41   25   34   25   26   25    23

Table 3.1508.5   GPS week: 1508   Day: 5   MJD: 54805.000                            

        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  |    5  ---  ---  ---  ---   30  ---  ---  ---  ---    0 |    20  ---  ---  ---  --- 9999  ---  ---  ---  ---    21
   2  |   13   23   10   12   42    9   22   25   10   21    6 |    20   31   13   11   33   18   28   22   19   20    14
   3  |    8   10    8    5   32    7   16    8   13   68    6 |    31   35   36   35   34   32   36   35   33   75    34
   4  |   10   11    9    7   25    8    9   15    9   24    4 |    10   14   10   14   18   11   13   18   18   20     9
   5  |    9   14    8    5   22    4   15   11    5   20    4 |    12   24   16   12   22   14   20   11   13   21    11
   6  |    6    8    7    5   40    5   15    8   13   21    3 |    17   19   20   20   20   16   20   18   21   15    17
   7E |    5   22   10    8   47    7   17   10    9   11    4 |    15   25   20   22   50   18   24   18   21   18    17
   8E |   14   19   14    7   72    6   20   14   25   21    6 |    18   28   17   18   40   17   21   21   34   22    16
   9E |   19   19   11   12   64    7   21   23   22   19    6 |    26   25   26   22   39   21   26   25   39   27    22
  10E |   12   16    8    9   49    6   16   14   13   17    4 |    39   43   38   39   53   37   45   36   35   40    36
  11  |    9   19    8    8   62    8   19   11   13   23    4 |    17   35   24   21   58   21   33   18   22   17    19
  12  |   13   22   10    8   27    9   27   18    9   19    5 |    16   27   17   15   38   15   31   16   18   15    14
  13  |   10   23   10    9   37    8   20   11   11   17    5 |    14   31   17   18   43   17   29   13   21   10    14
  14  |   10   20    9    9   56    9   26   12   12   26    5 |    11   27   15   17   33   16   27   14   24   24    15
  15  |   10   20   11    8   45    9   24   12   10   19    5 |    26   30   22   24   53   22   31   23   22   23    20
  16  |   10   28    9    9   43    8   26   15   13   31    6 |    16   34   17   18   39   18   31   17   24   26    16
  17  |    9   12    8   11   53   12   19   14   12   23    5 |    19   20   17   18   25   16   20   23   18   16    15
  18E |    7   23   10   13   33    6   24   12    9   36    6 |    72   82   73   76   95   75   80   74   75   68    75
  19  |    9   10    5    6   77    6   14    8    8   22    3 |    17   21   18   19   49   16   20   16   18   15    16
  20E |    6   21   10   10   46    5   16   16   16   15    5 |    17   28   20   17   50   19   27   23   27   21    19
  21  |   11   17    7    8   33    7   21   16   10   18    5 |    16   26   14   16   45   17   28   21   18   19    15
  22E |    6   14   10    7   28    8   18   14   11   15    4 |    21   26   17   21   34   23   25   26   29   21    22
  23  |   11   28    9   14   36    8   22   13   11   19    5 |    17   36   24   23   47   22   31   16   23   15    18
  24  |   10   13    9    9   39    6   15   13    7   24    4 |     9   21   15   13   27   13   24   13   17   27    12
  25E |   14   19   11   10   45    6   17   24   16   15    6 |    24   34   27   21   36   25   34   36   28   24    23
  26  |   11   12    8    6   44    5   15   13    9   16    4 |    63   63   63   63   85   63   67   66   67   72    63
  27E |   17   17    9    9   67    6   20   15   19   20    5 |    18   25   16   20   35   17   19   27   30   26    16
  28  |   11   21   10   11   40    8   24   14   14   25    5 |    17   29   17   20   32   18   27   27   23   30    15
  29  |   12    9    8    8   26    5   12    8   11   27    4 |    20   26   26   21   29   24   24   19   21   17    21
  30  |    9   13    8    7   25    6   13   10    9   16    3 |    17   22   17   17   25   16   21   14   16   18    14
  31E |    7   23    7   10   32    8   21   10   12   10    4 |    24   35   24   25   42   23   31   26   24   26    23
  32  |   11   21   12    7   46    8   17   18   14   16    5 |    23   29   24   22   39   22   31   28   30   26    23
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   18    9    9   45    7   19   14   13   24      |T   21   30   23   23   40   22   29   24   26   26    21
 WRMS |   10   18    9    9   48    7   19   12    9   22      |NE  19   28   21   20   37   20   28   21   23   24    18
 MEDI |   10   19    9    8   42    7   19   13   11   20      |MD  17   28   18   20   39   18   27   21   23   21    17

Table 3.1508.6   GPS week: 1508   Day: 6   MJD: 54806.000                            

        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  |    4  ---  ---  ---  ---   54  ---  ---  ---  ---    0 |    38  ---  ---  ---  --- 9999  ---  ---  ---  ---    42
   2  |   14   25   11   12   51   10   22   21   11   18    6 |    28   39   25   19   41   31   36   30   30   27    25
   3  |    7   10    6    8   23    6   13   10   11   69    6 |    35   34   35   36   33   35   34   36   35   81    33
   4  |   11   13    8    6   36    7    9   14    6   18    3 |    17   20   20   21   24   20   17   25   28   23    19
   5  |   14   13   10    7   22    4   11   16    8   21    4 |    17   21   17   12   32   14   19   17   18   24    14
   6  |    8   10    7    8   21    4   11   10   10   21    3 |    29   29   30   28   33   28   29   31   30   29    27
   7E |    7   24    9    9   25    8   17   10    8    9    4 |    26   36   25   28   38   28   30   28   26   29    26
   8E |   14   18   17   10   72    8   17   14   26   21    6 |    23   28   24   24   28   25   26   24   36   23    21
   9E |   21   21    8   12   60    9   16   32   21   14    7 |    36   36   35   34   34   33   34   33   45   36    33
  10E |   12   17    8    6   44    7   17   15   11   19    4 |    56   58   58   55   68   57   60   55   60   54    56
  11  |    7   19    8    8   70    8   15   13    9   20    4 |    22   36   30   22   67   27   35   23   27   20    24
  12  |   16   23   10    8   24   10   24   19    9   19    6 |    27   35   27   27   37   29   35   29   27   30    25
  13  |    9   21   11    9   43    7   19   11    7   18    4 |    21   34   25   22   49   23   29   19   22   19    20
  14  |   13   18   10   10   65    9   25   16   15   25    6 |    19   29   22   23   37   22   29   23   32   25    20
  15  |   11   23    9    7   42    8   26   17   10   20    5 |    22   32   24   23   40   23   34   23   27   26    24
  16  |   12   28   10    9   50    8   24   17    7   43    6 |    22   39   22   23   49   26   32   25   28   40    23
  17  |   10   12   10   15   99    9   13   15   13   24    5 |    39   39   36   39   79   36   36   41   41   35    37
  18E |    8   27   11   11   40    6   21   13   10   27    5 |    29   39   31   29   54   32   36   31   35   38    29
  19  |    8   13    4    6   80    6   11   10    8   26    3 |    34   36   31   33   64   32   30   33   34   35    31
  20E |    6   19   10    7   55    7   19   15    9   17    4 |    26   37   34   30   65   29   35   28   29   35    28
  21  |   12   18    8    9   41    8   19   14    9   17    4 |    26   35   24   27   60   29   36   26   31   28    27
  22E |    6   22   10    9   35    5   19   17   12   17    5 |    21   30   19   24   39   22   26   26   25   28    21
  23  |   10   27   11   11   34    9   22   13    9   21    5 |    20   36   25   22   43   25   30   20   27   19    21
  24  |   10   13    8    8   42    4   11   14    6   24    4 |    16   26   20   17   28   19   26   20   26   31    20
  25E |   13   16   13   13   30    7   16   22   17   26    6 |    30   37   34   29   40   30   38   36   33   35    29
  26  |    8   15    8    7   35    4   14   18   10   17    4 |    55   58   58   58   63   57   60   55   61   56    59
  27E |   16   18    9   10   78    7   15   14   21   24    5 |    30   35   28   34   28   33   31   36   42   37    30
  28  |   12   23   10   13   45    9   20   14   12   27    5 |    24   32   23   28   39   24   30   33   28   34    23
  29  |    9    8    9    9   30    4   12   11   12   30    4 |    42   47   46   42   58   45   48   43   45   46    44
  30  |   13   13   11    8   19    7   11   18   12   15    4 |    29   26   30   23   35   23   26   28   28   28    25
  31E |    9   19   10    9   41    9   21   11    9   12    4 |    22   35   28   25   38   28   32   24   31   24    24
  32  |   26   22   13   10   39   10   18   18   10   27    6 |    53   52   50   50   59   45   56   40   52   45    49
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   12   19   10    9   49    7   18   16   12   25      |T   29   35   30   29   45   30   34   30   33   33    29
 WRMS |   11   19    9    9   47    7   16   14    9   22      |NE  28   35   29   28   46   29   33   29   32   33    28
 MEDI |   10   18   10    9   41    7   17   14   10   21      |MD  26   35   28   27   40   28   32   28   30   30    25



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 4.1508   GPS week: 1508   MJD: 54800.0-54806.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3054 |U    8     8    20 |U   32    33    78 |U   10    10    24 |
emr | emr 2958 |    12    12    28 |    33    32    79 |    11    21    36 |
esa | esa 2976 |     9    10    23 |U   32    33    77 |     9    10    21 |
gfz | gfz 2943 |U    9     8    24 |U   32    35    94 |    14    13    37 |
igr | igr 2975 |     9    10    25 |    32    32    79 |     9    11    25 |
igs | igs 2970 |    10     9    24 |    32    32    78 |    10    15    30 |
jpl | jpl 2957 |U   22    24    37 |U   32    33    77 |U   13    20    37 |
mit | mit 2976 |U   10     8    24 |U   38    41    88 |U   10    15    28 |



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 5.1508.0   GPS week: 1508   Day: 0   MJD: 54800.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |    10    13    22 |    14    22    52 |    11     8    23 |
emr | emr 2960 |    13    10    22 |    17    21    54 |    10    17    34 |
esa | esa 2976 |    11    14    23 |    15    19    52 |     6     7    18 |
gfz | gfz 2951 |    11     8    20 |    16    20    58 |    11     8    23 |
igr | igr 2973 |    11    14    24 |    16    19    54 |     8     9    22 |
igs | igs 2973 |    12     9    19 |    15    20    52 |    10    13    30 |
jpl | jpl 2960 |    17    15    33 |    16    20    49 |    11    13    31 |
mit | mit 2976 |    14     7    26 |    17    21    54 |     9    11    25 |

Table 5.1508.1   GPS week: 1508   Day: 1   MJD: 54801.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3067 |     8    13    20 |    19    15    81 |     9    10    25 |
emr | emr 2960 |    14    12    26 |    19    18    69 |    11    17    30 |
esa | esa 2976 |     9     9    18 |    16    19    69 |     8     8    18 |
gfz | gfz 2949 |     8     8    21 |    18    20   106 |    13    10    37 |
igr | igr 2976 |     9    11    24 |    18    15    76 |    10    11    23 |
igs | igs 2969 |    10     9    21 |    18    16    74 |     9    17    31 |
jpl | jpl 2959 |    19    21    33 |    17    13    76 |    14    19    33 |
mit | mit 2976 |     8     7    20 |    18    17    72 |     9    13    22 |

Table 5.1508.2   GPS week: 1508   Day: 2   MJD: 54802.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |     6     8    18 |    10    12    38 |    10    13    22 |
emr | emr 2960 |     8    10    24 |    13    13    38 |    10    25    32 |
esa | esa 2976 |     7     9    18 |     9    12    36 |     9    11    17 |
gfz | gfz 2949 |     7     9    21 |    10    15    51 |    15    19    40 |
igr | igr 2976 |     7    10    21 |    10    14    37 |     9    14    24 |
igs | igs 2955 |     6     7    18 |     9    12    38 |     9    15    22 |
jpl | jpl 2959 |    25    29    36 |     9    15    34 |    18    28    42 |
mit | mit 2976 |     8     7    15 |     9    12    35 |     9    18    22 |

Table 5.1508.3   GPS week: 1508   Day: 3   MJD: 54803.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2976 |     9     5    21 |   155   149   285 |     8     9    22 |
emr | emr 2960 |    12    12    30 |   157   142   290 |     9    18    31 |
esa | esa 2976 |    10     8    23 |   156   149   288 |     7     9    21 |
gfz | gfz 2949 |    11     7    25 |   155   153   292 |    11    10    32 |
igr | igr 2976 |    11    10    25 |   155   146   289 |     7     9    22 |
igs | igs 2974 |    11    10    27 |   155   146   288 |     7    11    24 |
jpl | jpl 2958 |    17    22    35 |   156   148   287 |    13    18    35 |
mit | mit 2976 |    11     9    20 |   155   146   283 |     9    13    24 |

Table 5.1508.4   GPS week: 1508   Day: 4   MJD: 54804.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3061 |     8     5    18 |    10    12    34 |     8     7    19 |
emr | emr 2960 |     9     9    33 |    12    12    33 |    12    20    37 |
esa | esa 2976 |     7     5    24 |     9    11    32 |     8     8    18 |
gfz | gfz 2936 |     9     8    22 |     9    13    51 |    15    11    33 |
igr | igr 2973 |     8     7    25 |     8    11    32 |     8     8    19 |
igs | igs 2970 |    11    10    30 |     9    12    33 |     9    16    31 |
jpl | jpl 2959 |    25    30    37 |    10    11    37 |    11    18    33 |
mit | mit 2976 |    15    10    27 |    40    63    84 |    10    15    30 |

Table 5.1508.5   GPS week: 1508   Day: 5   MJD: 54805.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3072 |     9     8    21 |     9    12    31 |    10     8    20 |
emr | emr 2955 |    18    18    33 |     9    13    39 |    14    22    37 |
esa | esa 2976 |    13    12    30 |    10    13    36 |    10     9    22 |
gfz | gfz 2933 |     9     9    33 |     9    13    55 |    15    13    40 |
igr | igr 2976 |    13    12    30 |    11    14    37 |    11    10    21 |
igs | igs 2976 |    10    10    29 |     9    14    33 |    12    13    27 |
jpl | jpl 2954 |    28    23    51 |    10    13    29 |    14    19    38 |
mit | mit 2976 |    11    10    34 |    16    20    47 |    14    16    31 |

Table 5.1508.6   GPS week: 1508   Day: 6   MJD: 54806.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |     6     6    18 |     7     7    26 |    12    15    36 |
emr | emr 2956 |    10    14    31 |     7     8    29 |    13    27    50 |
esa | esa 2976 |     8     9    25 |     7     8    28 |    14    16    37 |
gfz | gfz 2935 |    10    10    28 |     8    11    48 |    18    18    52 |
igr | igr 2976 |     8     7    24 |     7     8    28 |    12    15    41 |
igs | igs 2976 |     8     7    24 |     7     8    29 |    14    18    44 |
jpl | jpl 2955 |    21    28    36 |     6    10    30 |    13    25    51 |
mit | mit 2976 |     7     9    23 |     9    12    41 |    13    22    43 |


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    : 21-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 6.1508   GPS week: 1508   MJD: 54800.500-54806.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      29       4       5     238      0 |      -2     16
            |      18      11      55      58      8 |       1
emr   uuuuu |     -19     -33     -59      45      6 |      36     40
            |      24      25      90      67      7 |       1
esa   uuuuu |     -15      -7     176    -195     -1 |       2     17
            |       8      16      58      29      3 |       2
gfz   uuuuu |      22      21      26     124      0 |      -4     19
            |      11      12      47      42      8 |       4
grg   xxxxx |      -7     -15     -39     229     -7 |      -2     20
            |      29      27      91      72     24 |       4
igr   xxxxx |       1      28      46      69      0 |      -5     15
            |      17      16      78      72     10 |       2
irf   xxxxx |      -5       2     -24      -9     -2 |      -9     19
            |       7       8      36      29     11 |       4
jpl   uuuuu |      64       2    -117     284      1 |       8     18
            |      57      32      97      82     12 |       3
mit   uuuuu |       1      -1    -188    -157    -11 |       8     20
            |      26      26     109      40     12 |       6
ngs   uuuuu |     -36      -3      23      32      1 |       4     20
            |      36      29      70      87     10 |       1
sio   uuxxx |      19       7       1     246    -24 |       2     23
            |      13      21     125      55     19 |      11


Table 7.1508.0   GPS week: 1508   Day: 0   MJD: 54800.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      17      11     -36     265      4 |      -2     15
emr   uuuuu |       7     -22    -190      94     -3 |      38     42
esa   uuuuu |      -2      10      59    -166     -6 |       4     18
gfz   uuuuu |       9      15      17     183     -8 |       2     22
grg   xxxxx |      -9     -27     -28     196    -45 |       4     22
igr   xxxxx |      17      57     -23     110    -10 |      -2     15
irf   xxxxx |      -7       0       7      13    -18 |      -3     19
jpl   uuuuu |      61       5     -90     221     17 |       3     12
mit   uuuuu |     -24     -12     -40     -85    -26 |      17     25
ngs   uuuuu |     -27       1     121    -102    -13 |       5     21
sio   uuxxx |      35     -14     -79     222    -53 |      20     30

Table 7.1508.1   GPS week: 1508   Day: 1   MJD: 54801.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      16     -12     -68     220     -2 |      -2     15
emr   uuuuu |     -18      -8    -177     113      5 |      37     40
esa   uuuuu |     -16      -8     195    -223     -1 |       3     16
gfz   uuuuu |      25      12     -38      92     -3 |      -1     19
grg   xxxxx |      21     -54      24     228     -6 |       1     23
igr   xxxxx |       0      11     -38     132     -1 |      -3     14
irf   xxxxx |      -9      -3      -4       0    -15 |      -5     17
jpl   uuuuu |      -5      27      -1     296     16 |       5     17
mit   uuuuu |     -15      11    -131    -149    -27 |      15     23
ngs   uuuuu |       9     -15      66      41      3 |       3     19
sio   uuxxx |      13     -25     -23     292    -46 |      13     25

Table 7.1508.2   GPS week: 1508   Day: 2   MJD: 54802.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      38      16      14     211      4 |      -1     15
emr   uuuuu |       0     -47      18      87     -2 |      37     40
esa   uuuuu |     -21       1     193    -214      1 |       3     16
gfz   uuuuu |      15      26      74     148     -6 |      -2     18
grg   xxxxx |      37     -13    -168     238      5 |      -1     22
igr   xxxxx |     -20      14      42      53    -12 |      -4     14
irf   xxxxx |      -9      12      15      -2     -3 |      -8     18
jpl   uuuuu |      35     -13    -138     224     -4 |       9     19
mit   uuuuu |      -6       3    -111    -156    -13 |      11     21
ngs   uuuuu |     -14     -12     -91      52     20 |       4     19
sio   uuxxx |      10      30     -60     203    -26 |       6     23

Table 7.1508.3   GPS week: 1508   Day: 3   MJD: 54803.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      43      -9      12     341     14 |      -2     15
emr   uuuuu |      -1     -43     -31      76      6 |      35     38
esa   uuuuu |     -15       6     178    -183      2 |       1     16
gfz   uuuuu |      33      34      10     137     -4 |      -5     19
grg   xxxxx |     -33     -29     -77     298    -33 |       0     22
igr   xxxxx |     -19      31      35     170     -6 |      -6     16
irf   xxxxx |      -7       7     -13      -2      3 |     -10     19
jpl   uuuuu |      75      16    -308     285      5 |       9     19
mit   uuuuu |     -11      14    -138    -166     -6 |       8     20
ngs   uuuuu |     -57     -55      71       3     -1 |       5     20
sio   uuxxx |      11      10      10     345    -15 |      -1     22

Table 7.1508.4   GPS week: 1508   Day: 4   MJD: 54804.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       6       7      44     259     -5 |      -1     17
emr   uuuuu |     -53     -57      43      11     13 |      35     39
esa   uuuuu |     -11     -30     247    -227      0 |       1     16
gfz   uuuuu |       7       1     -23     152      4 |      -7     18
grg   xxxxx |     -44     -17     -95     294      8 |      -6     18
igr   xxxxx |      25      36     202      40     15 |      -7     16
irf   xxxxx |      12      10     -36      23      5 |     -11     18
jpl   uuuuu |     176      50    -130     442     -4 |      11     21
mit   uuuuu |      56      38    -297    -188     -6 |       6     17
ngs   uuuuu |    -102       6      17     -39      5 |       6     21
sio   uuxxx |      28       3      80     217     -9 |      -4     19

Table 7.1508.5   GPS week: 1508   Day: 5   MJD: 54805.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      58      10     -27     158     -9 |      -3     18
emr   uuuuu |     -48     -61     -29     -73     11 |      35     38
esa   uuuuu |     -27       3     155    -150      2 |      -1     17
gfz   uuuuu |      27      31      75      94     13 |      -9     19
grg   xxxxx |      -8      27     -47     262     -4 |      -7     18
igr   xxxxx |       2      22      37       5      5 |      -8     16
irf   xxxxx |      -6      -5     -62     -48      6 |     -13     20
jpl   uuuuu |      77     -36     -44     316    -12 |      10     21
mit   uuuuu |      -3     -24    -291    -212     -3 |       1     16
ngs   uuuuu |     -23      23     -11     128     -4 |       4     20
sio   uuxxx |      32      13    -154     255     -9 |      -9     21

Table 7.1508.6   GPS week: 1508   Day: 6   MJD: 54806.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      28       2      96     212     -3 |      -3     18
emr   uuuuu |     -23       5     -52       4     15 |      38     41
esa   uuuuu |     -14     -28     203    -203     -2 |       0     16
gfz   uuuuu |      36      30      66      63      6 |      -7     18
grg   xxxxx |     -15       8     116      89     26 |      -7     18
igr   xxxxx |       2      22      63     -30      8 |      -6     15
irf   xxxxx |      -7      -7     -79     -50      8 |     -12     19
jpl   uuuuu |      27     -34    -107     204     -9 |      11     20
mit   uuuuu |      10     -40    -310    -144      3 |       1     16
ngs   uuuuu |     -39      33     -11     143     -5 |       3     20
sio   uuxxx |       2      33     231     191     -5 |     -11     21



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