[IGSREPORT-18902] Wk 1596 IGS Final Orbits

Jim Ray igs.acc at noaa.gov
Thu Aug 26 08:05:17 PDT 2010


Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1596   (Aug 08, 2010 - Aug 14, 2010)

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 (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 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:

igs1596[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1596[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1596[0-6].cls  IGS GPS clock combination summary report.
igs15967.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15967.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 1582, a new solution from CNES/GRGS (GRG) is included with
    weight except for the clock and LOD combinations.

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

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  ALL   | 1 1
                0  |  COD   | USNO USNO
                0  |  EMR   | WTZR WTZR
                0  |  ESA   | CEDU CEDU IRKJ SUTH UNSA
                0  |  GFZ   | 3 6 26
                0  |  GRG   | DGAR IRKJ ONSA
                0  |  JPL   | 26 32
                0  |  MIT   | 3 10 25 26 3 10 25 26 29 BRUS
                1  |  ALL   | 1 1
                1  |  COD   | DGAR NRIL
                1  |  EMR   | 26 3 6 26 WES2 WTZR
                1  |  ESA   | IRKJ SUTH UNSA
                1  |  GFZ   | 3 6 26 HARB MDVJ NRC1
                1  |  GRG   | DGAR IRKJ ONSA SANT
                1  |  JPL   | 3 32
                1  |  MIT   | 25 26 3 6 25 26 WES2 WES2
                2  |  ALL   | 1
                2  |  EMR   | 26 26 WTZR WES2 WTZR
                2  |  ESA   | IRKJ SUTH
                2  |  GFZ   | 1 HARB UNSA
                2  |  GRG   | DGAR IRKJ ONSA
                2  |  JPL   | 32
                2  |  MIT   | 25 26 25 26 MDVJ TNML MDVJ TNML
                3  |  ALL   | 1
                3  |  COD   | USNO DGAR USNO
                3  |  EMR   | 3 6 26 WTZR WTZR
                3  |  ESA   | IRKJ SUTH UNSA
                3  |  GFZ   | 3 6 26 KERG WES2
                3  |  GRG   | DGAR IRKJ ONSA
                3  |  JPL   | 32
                3  |  MIT   | 25 26 3 6 25 26
                4  |  ALL   | 1 1
                4  |  COD   | DGAR
                4  |  EMR   | 26 3 26 WTZR WTZR
                4  |  ESA   | KERG SUTH UNSA
                4  |  GFZ   | 6
                4  |  GRG   | DGAR ONSA
                4  |  JPL   | 6 26 32
                4  |  MIT   | 25 26 3 6 25 26 USN3 PDEL USN3
                5  |  ALL   | 1
                5  |  COD   | USN3 RABT USN3
                5  |  EMR   | 3 6 WTZR WTZR
                5  |  ESA   | SUTH UNSA
                5  |  GFZ   | 3 6 GRAZ
                5  |  GRG   | DGAR ONSA
                5  |  JPL   | 3
                5  |  MIT   | 6 25 26 3 6 25 26 SANT
                5  |  NGS   | 25
                6  |  ALL   | 1
                6  |  COD   | DGAR
                6  |  EMR   | 26 26 WTZR WTZR
                6  |  ESA   | IRKJ
                6  |  GFZ   | 6 HARB MDVJ
                6  |  GRG   | DGAR IRKJ ONSA
                6  |  JPL   | 3 26 32
                6  |  MIT   | 3 6 25 26 3 6 25 26 USNO USNO
                6  |  NGS   | 25

 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 all the AC orbit and ERP values in order
    to align them to the IGS05 frame. These rotations were estimated in the IGS
    SINEX combination process, performed by the IGS Reference Frame Coordinator
    at the Institut Geographique National (IGN), and are based on the common
    stations between the individual AC SINEX solutions and the IGS05.snx SINEX
    frame. 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  |     .4    1.3    2.3      -5     16    -26    -.54
       EMR  |    3.0    1.3     .3      31     23    -10    -.01
       ESA  |    3.5     .4    2.2      37    -24    -15    -.42
       GFZ  |     .2    2.2    1.1      28      0    -61    -.17
       GRG  |    3.3    6.5   10.3       5     31    -22    -.05
       JPL  |    2.0    6.6  -10.8      -3    -75    -69    -.24
       MIT  |    4.5    2.4   16.5      17     -7    -36    -.36
       NGS  |    4.5     .5    8.0      13    -48      5    -.41
       SIO  |     .3    -.6    1.9     -25     12      4    -.18


 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 IGN. 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 1.1596.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1596.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 2.1596.[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 3.1596.[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 5.1596.0-6).

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 1596 summary.                       (Aug 08, 2010 - Aug 14, 2010)

Table 1.1596.a   GPS week: 1596   MJD: 55416.000-55422.000

         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  233|    0     0    -2    41   -47    -3  -.24    7    7 |     -23     412     14     57
        |    0     0     0     9     9    27   .02           |     400     719
emr   89|    1    -1    -6   -27   -31    -5   .41   17   17 |   -1878    -444     17     74
        |    1     0     1    12    22    11   .03           |    2401    1815
esa  130|    1     0     2   -60     1    -7   .25    8    8 |   -1206     398     14    101
        |    0     1     1    25    16    17   .02           |    1728    1522
gfz  195|    0     0     1   -42    -2   -17  -.27   10    9 |     -11     -32     21     97
        |    1     0     0    36    57    14   .03           |     300     587
grg  124|    1     0     8     0   -69   -17   .59   18   16 |    -224     139     51    204
        |    1     1     3    40    18    16   .04           |     205     610
igr  n/a|    0     0     0    32    12   -30  -.04    5    5 |   -9946    -258     16     52
        |    0     0     0    35    14    12   .04           |    1952    1855
jpl  120|    0    -1   -10    32   139    49   .57   18   17 |    -439    -456     17    102
        |    0     1     1    14    14    33   .04           |    2471    1977
mit  258|    0     0     0   -12   -13    12  -.27   11   10 |     769     673     22    159
        |    0     0     2    35    19     9   .02           |     746     940
ngs  215|    0     0     0    45    86     0  -.16   12    9 |  181789 -144956   2200   5864
        |    0     0     1    32    33    22   .03           |  463602  377087
sio  259|   -2     0     2    71   -37     0  -.14   19   17 |     ---     ---    ---    ---
        |    0     0     1    31    30    17   .03           |     ---     ---


Table 1.1596.b   GPS week : 1596   MJD: 55416.000-55422.000   

         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  |   17   16   15   15   24   15   17 |
   2  |    6    6    5    5    6    6    6 |
   3  |    5    5    5    4    5    5    5 |
   4  |    4    3    4    4    4    4    4 |
   5  |    5    4    5    4    4    4    5 |
   6  |    6    6    5    5    5    5    5 |
   7  |    5    5    4    4    4    4    4 |
   8  |    4    4    4    4    4    4    4 |
   9  |    4    4    4    4    4    4    4 |
  10  |    4    3    3    4    4    4    4 |
  11  |    4    4    4    3    4    4    4 |
  12  |    5    5    5    5    5    5    5 |
  13  |    4    4    4    4    4    4    5 |
  14  |    4    4    4    4    4    4    4 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    5    4    5    5    5 |
  17  |    6    4    4    5    5    4    4 |
  18  |    5    5    5    5    5    5    5 |
  19  |    5    5    5    4    4    4    4 |
  20  |    5    4    4    4    4    4    5 |
  21  |    4    5    5    5    4    5    5 |
  22  |    4    4    4    4    4    4    4 |
  23  |    4    4    4    4    4    4    5 |
  24  |    4    4    4    3    3    3    3 |
  25  |   12   11   12   13   14   13   11 |
  26  |    5    5    5    5    6    6    6 |
  27  |    4    3    4    4    4    4    4 |
  28  |    4    4    5    4    5    5    5 |
  29  |    5    5    5    6    5    5    6 |
  30  |    3    3    3    3    3    4    3 |
  31  |    5    4    4    4    4    4    4 |
  32  |    4    3    3    3    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
         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 2.1596.0   GPS week: 1596   Day: 0   MJD: 55416.000                            

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  233|    0     0     0    47   -48   -31  -.22    8    8 |    -432     -86     16     61
        |                     35     8                       |
emr   89|    0    -1    -9   -42   -35     0   .37   17   17 |   -2201    -792     18     90
        |                     -3   -10                       |
esa  130|    2     0     4   -74   -11     8   .30    8    8 |   -1732    1110     12     87
        |                     54    15                       |
gfz  195|    0     0     2   -26    -7   -13  -.27   10   10 |     144     -75     19     96
        |                    -15   -21                       |
grg  124|    1     0    12   -47   -41    -1   .56   23   18 |    -103    -475     60    202
        |                    143   -28                       |
igr  n/a|    0     0     0   -41    28   -11   .02    5    5 |   -9878    -958     16     50
        |                    -31    -3                       |
jpl  120|    0     0   -12    27   139    48   .57   18   17 |     217    -756     18    112
        |                     42    -4                       |
mit  259|    0     0    -3    40     0    -4  -.31   11   11 |    -261    -256     19    164
        |                     -6     9                       |
ngs  215|   -1     0     2   -23    82    33  -.20   11    9 |   44093  -16104   2154   3511
        |                     20    -2                       |
sio  259|   -3     1     1   115   -74     3  -.10   19   15 |     ---     ---    ---    ---
        |                    -96    42                       |

Table 2.1596.1   GPS week: 1596   Day: 1   MJD: 55417.000                            

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  233|   -1     0    -1    40   -40   -11  -.23    7    7 |    -111    -778     13     59
        |                     39    22                       |
emr   89|    2    -1    -6   -47   -54   -12   .44   17   17 |   -2070    1651     18     82
        |                     -6     9                       |
esa  130|    1    -1     4   -77   -16   -14   .26    8    7 |   -1434    1588     12    103
        |                     27    35                       |
gfz  195|    0     0     0   -50    32     2  -.30   10    9 |     481   -1176     19     93
        |                    -34   -17                       |
grg  124|    0     1    10    22   -67     9   .53   16   14 |    -176    -601     42    183
        |                     19     0                       |
igr  n/a|    0     0     0    36    17   -43  -.04    5    5 |   -9975    1314     17     51
        |                    -53     4                       |
jpl  120|    0     0   -10    30   150    78   .63   17   17 |     312    1300     16    103
        |                     33    -1                       |
mit  259|    0     0    -2     3     8     8  -.28   10   10 |     -50     -45     20    162
        |                     10    11                       |
ngs  215|    0     0     1    43    66    -7  -.19   11    9 |     -39    -747   2238   4934
        |                    -75    19                       |
sio  259|   -3     0     0    93   -63   -10  -.13   18   16 |     ---     ---    ---    ---
        |                    -84    39                       |

Table 2.1596.2   GPS week: 1596   Day: 2   MJD: 55418.000                            

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  233|    0     0    -2    35   -55    31  -.25    8    7 |    -235      65     21     55
        |                     19    32                       |
emr   89|    3    -1    -4   -15   -26   -20   .41   17   17 |     752   -1146     20     64
        |                    -53   -11                       |
esa  130|    1     0     0   -98   -13     0   .24    9    8 |   -1291     575     20    103
        |                     55    14                       |
gfz  195|    0     0     2   -30    67   -33  -.28    9    9 |    -327     280     25     96
        |                    -44     2                       |
grg  124|    0    -1     8   -23   -80   -29   .63   17   17 |      36    -455     61    187
        |                     70    55                       |
igr  n/a|    0     0     1    32   -11   -25  -.09    5    5 |   -7857   -1321     20     53
        |                    -34    13                       |
jpl  120|    0    -1   -10    30   122    51   .58   19   18 |    2360   -1576     15     87
        |                      4   -21                       |
mit  259|    0     0     0     6    -8     9  -.24    9    8 |     907    -554     33    154
        |                     10     9                       |
ngs  215|    0     0     2    49    31   -25  -.10   11    9 | 1232455 -999999   2205   6112
        |                    -31    35                       |
sio  259|   -2     0     3    91   -34   -27  -.10   19   17 |     ---     ---    ---    ---
        |                    -90    21                       |

Table 2.1596.3   GPS week: 1596   Day: 3   MJD: 55419.000                            

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  233|    0     0    -2    32   -54   -25  -.26    7    7 |    -258     611     13     57
        |                     43    29                       |
emr   89|    1    -2    -5   -20   -12   -18   .43   17   17 |     635    -659     15     71
        |                    -51   -25                       |
esa  130|    0     0     0   -67    23    11   .26    6    6 |    -584    -481     14    105
        |                      9     5                       |
gfz  195|    0     0     0     8   -24    -8  -.31   11   10 |    -416     762     20    101
        |                    -42   -41                       |
grg  124|    2     2     9   -37   -63   -27   .62   17   15 |    -322     691     52    207
        |                     69    -7                       |
igr  n/a|    0     0     1    67    21   -32  -.09    4    4 |   -8192    -530     15     54
        |                    -75   -14                       |
jpl  120|    0    -3    -7    32   124    31   .53   18   18 |    1835    -723     18    101
        |                    -17   -30                       |
mit  259|    0     0     2    -5   -29    12  -.25   10   10 |     464    1289     18    148
        |                     19    12                       |
ngs  215|    0     0     0    56    97    -7  -.16   11    7 |    -137     556   2036   8049
        |                    -63   -11                       |
sio  259|   -2     1     5    79   -37    14  -.16   19   17 |     ---     ---    ---    ---
        |                    -75    25                       |

Table 2.1596.4   GPS week: 1596   Day: 4   MJD: 55420.000                            

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  233|    0     0    -3    47   -31     1  -.26    7    7 |      20     797     13     57
        |                     -9    -6                       |
emr   89|    2    -2    -7   -24     3     6   .38   17   17 |    -396   -3426     20     71
        |                    -41   -42                       |
esa  130|    0     2     3   -36    20     2   .24    7    7 |      62    -854     14     97
        |                     20     3                       |
gfz  195|   -1     0     1  -106  -112   -16  -.24   10    9 |      93    -144     21    100
        |                    -28   -38                       |
grg  124|    4     1    10    33   -54   -11   .57   17   15 |     -53     629     48    211
        |                      1   -12                       |
igr  n/a|    0    -1     0    28     0   -18  -.04    4    4 |   -8624   -2969     16     53
        |                    -62   -13                       |
jpl  120|    1     0    -8    46   162     3   .58   17   17 |    -350   -3413     16    105
        |                    -44   -70                       |
mit  259|    0     0     2   -41   -48    23  -.26   12   10 |    1192    1171     23    166
        |                     27    22                       |
ngs  215|    0     0     0    71   142   -19  -.16   11    8 |      -5     748   2643  10562
        |                   -154   -55                       |
sio  259|   -3     0     3    41   -58    23  -.16   20   18 |     ---     ---    ---    ---
        |                    -83    21                       |

Table 2.1596.5   GPS week: 1596   Day: 5   MJD: 55421.000                            

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  233|    0     0    -1    27   -42    36  -.24    7    7 |      55    1335     13     61
        |                     23    48                       |
emr   89|    0     0    -7   -17   -37    -2   .40   18   18 |   -4529    -701     17     76
        |                    -68   -21                       |
esa  130|    0     1     2   -37     7   -32   .25    8    8 |   -4475    2620     14    116
        |                      1     9                       |
gfz  195|   -2     0     2   -26    -6   -37  -.24   10   10 |       6      42     24    104
        |                    -86   -60                       |
grg  124|    2     0     5   -10   -85   -31   .60   17   16 |    -445     570     42    204
        |                     41    19                       |
igr  n/a|    0     0     0    54    13   -45  -.03    5    4 |  -12318    -108     18     49
        |                    -85   -20                       |
jpl  120|    0    -1   -11     8   132    29   .52   18   17 |   -4444    -751     18    114
        |                      6   -19                       |
mit  259|    0     0     2   -19   -14    12  -.25   12   11 |    1412    1215     21    185
        |                     25    22                       |
ngs  215|    1     0     0    44   100     3  -.14   13   10 |   -1965     746   2052   3777
        |                   -138    19                       |
sio  259|   -3     0     2    34    -6     0  -.14   19   18 |     ---     ---    ---    ---
        |                    -78    13                       |

Table 2.1596.6   GPS week: 1596   Day: 6   MJD: 55422.000                            

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  233|    0     0    -2    56   -58   -21  -.25    8    7 |     800     945     11     51
        |                     -6    19                       |
emr   89|   -1     0    -5   -24   -58     5   .42   17   17 |   -5342    1959     16     67
        |                    -42    14                       |
esa  130|    0     1     2   -33    -1   -24   .22    7    8 |    1011   -1766     14    102
        |                     -8    33                       |
gfz  195|   -1    -1     2   -67    29   -18  -.24    9    8 |     -59      84     19     91
        |                    -53    -4                       |
grg  124|    2    -1     2    62   -94   -27   .65   19   18 |    -511     617     56    239
        |                    -48    78                       |
igr  n/a|    0     0     0    47    20   -36  -.01    4    4 |  -12784    2762     15     55
        |                    -68     8                       |
jpl  120|    0     0    -9    53   146   105   .61   19   19 |   -3008    2727     18     92
        |                      3    33                       |
mit  259|    0     0     3   -71    -6    25  -.27   11   10 |    1721    1897     24    138
        |                     26    19                       |
ngs  215|    0     0     0    73    84    28  -.15   14   11 |   -1878     102   2072   4108
        |                    -75    39                       |
sio  259|   -2     1     1    42    10    -8  -.15   21   18 |     ---     ---    ---    ---
        |                   -105     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 3.1596.0   GPS week: 1596   Day: 0   MJD: 55416.000                            

        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  |   19   56  ---   27  ---   49  ---   22  ---  ---   17 |    26   39  ---   18  ---   74  ---   16  ---  ---    17
   2  |    7   18   10    9   42    4   20   12    8   46    6 |    24   34   27   28   38   27   34   28   25   45    25
   3E |    9   16   10   10   14    6   14   16   20   14    4 |    17   25   26   18   25   16   30   21   24   24    19
   4  |    6   11    7    9   18    5   14    9    9   24    3 |    25   26   29   30   34   29   22   29   31   33    27
   5  |    8   20    9   12   13    5   21    9   10   20    4 |    12   26   17   21   24   16   25   19   14   17    15
   6E |   12   22   10   13   17    4   16   20   20   17    5 |    25   37   33   28   37   30   38   37   32   41    30
   7  |   13   20   10   10   19    4   20    7   13   17    4 |    17   30   22   15   31   17   31   17   16   12    16
   8  |    7   10    7    8   18    5   10    7    9   23    3 |    21   28   23   22   32   25   32   24   27   34    24
   9  |    7   10    6    7   22    4   12   12   15   20    4 |    13   14   12   12   16   11   16   16   16   18    10
  10  |    8   11    9    8   16    4   12   10    7   17    3 |    24   27   32   29   36   27   24   26   26   23    27
  11  |    7   16    5   10   19    6   20   10    9   11    3 |    27   36   31   30   48   30   38   30   33   31    30
  12  |    8   17    8   17   33    4   24    9    9   18    5 |    18   27   17   18   35   17   29   17   18   20    16
  13E |    7   13    5    8   19    5   21   11   10   19    4 |    19   23   20   19   29   17   26   16   15   21    17
  14E |    7   10    7    9   18    4   22   10    7   15    3 |    13   21   19   15   26   15   23   18   15   18    15
  15E |   10   31   10    8   17    4   23    8   12   18    5 |    16   32   20   20   22   19   25   18   16   28    18
  16  |   10   20    8   13   24    5   21   14   11   21    5 |    20   30   19   12   32   18   33   17   23   22    17
  17E |    7   18    8    9   67    5   18   10   10   10    6 |    41   44   41   42   55   41   46   40   38   41    39
  18  |    6   19   11   10   18    5   23   10   12   31    5 |    22   33   24   22   33   23   35   24   26   31    22
  19  |    7   20   10   11   19    5   18   16    8   12    4 |    54   59   55   55   54   52   55   58   55   57    54
  20  |    7   15   11   13   13    4   20    9    9   21    4 |    18   24   22   22   27   18   26   20   20   15    18
  21  |    9   15    6    8   16    5   22   11    8   19    4 |    28   40   31   29   33   29   39   26   31   31    28
  22  |    8   17    8    9   16    3   18    9   10   21    4 |    15   26   22   22   25   21   30   22   17   19    18
  23E |    7   16    7   12   13    4   18   10   10   15    4 |    16   24   20   15   25   14   26   17   13   21    15
  24  |    8   11    8    9   16    5   12   16   11   16    4 |    38   35   41   42   41   39   38   39   38   37    38
 X25  |   29  ---   22   24  ---   26  ---   19   24  ---   12 |    58  ---   50   44  ---   44  ---   44   49  ---    46
  26E |   13   13   11   10   24    6   16   10   19   12    4 |    19   22   23   20   32   17   30   16   24   19    17
  27  |    7   10    8    8   21    4   12   10   15   16    4 |    13   14   14   10   15   11   19   15   17   15    11
  28  |    7   19    7    5   26    5   18    9    9   19    4 |    19   29   21   14   34   17   31   14   18   19    17
 X29E |    7   18    9   10   18    6   24   10   12  ---    4 |    28   32   27   29   32   26   36   33   28  ---    28
  30  |    5   15    5    8   14    4   12   11    7    9    3 |    16   28   18   17   25   21   26   15   18   14    17
  31  |    8   16    7   13   23    4   25   13   11   14    4 |    14   27   17   18   30   16   30   17   14   15    15
  32  |    7   13    8    9   15    4   15   10    7   13    3 |    12   17   18   15   22   12   20   17   14   14    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    8   10   23    5   18   11   11   19      |T   22   29   25   23   31   24   30   23   24   25    22
 WRMS |    8   17    8   10   18    5   17   11    9   15      |NE  20   27   23   21   29   25   27   21   22   23    19
 MEDI |    7   16    8    9   18    5   18   10   10   17      |MD  19   28   22   20   32   19   30   19   23   21    18

Table 3.1596.1   GPS week: 1596   Day: 1   MJD: 55417.000                            

        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  |   20   58  ---   17  ---   71  ---   22  ---  ---   16 |    28   37  ---   32  ---   87  ---   15  ---  ---    23
   2  |    7   17   10   14   15    5   18    9    7   45    5 |    18   24   20   25   21   19   27   20   20   38    17
   3E |   10   15    6   13   13    4   13   13   19   16    4 |    19   28   25   25   28   20   30   25   26   32    22
   4  |    6   10    7    8    9    5    9    5    6   23    3 |    27   24   27   27   28   25   24   28   27   31    26
   5  |    5   20    8   13   14    6   21    9   10   19    4 |    12   23   15   20   16   13   24   16   16   14    12
   6E |   13   21   10   15   19    5   17   18   21   16    5 |    31   42   32   32   40   29   43   36   31   37    31
   7  |   12   22    8    9   18    5   23    9    9   17    4 |    16   31   19   16   28   15   31   17   15   14    15
   8  |    6   12    6    9   15    4    8    8   12   22    3 |    26   29   26   26   28   26   29   26   23   33    25
   9  |    6   12    9    8   15    5   11    9    9   15    3 |    14   15   14   17   22   13   16   18   14   22    13
  10  |    5   12    4    9   13    5   11    5    8   14    3 |    19   19   19   17   21   18   18   18   20   21    18
  11  |    5   15    6   10   16    3   16    9    9    7    3 |    27   31   29   26   39   24   34   27   25   23    26
  12M |    7   19    7   15   28    5   24    7    8   16    4 |    26   30   23   23   39   24   33   24   23   26    23
  13E |    5   18    6    7   16    6   19    9   11   11    3 |    17   29   20   15   26   17   23   16   17   17    16
  14E |    6   11    8    9   15    5   19   11    9   12    3 |    10   17   16   13   23   12   19   15   12   12    10
  15E |    6   25    8   13   12    3   24    8    8   15    4 |    17   26   19   20   21   16   23   17   19   20    17
  16  |    8   24    9   12   18    5   22   14    9   19    4 |    18   30   17   13   30   15   30   18   18   18    15
  17E |    5   13    8    6   22    3   14    8    8   15    3 |    36   37   36   36   40   38   38   36   35   42    35
  18  |    8   21    8   10   13    4   22    8   10   28    4 |    23   29   23   25   27   22   35   22   23   30    22
  19E |    7   20    7   12   20    7   17   17   14   12    4 |    56   59   57   55   58   57   59   57   60   56    56
  20  |    6   16    9   14   10    4   17    9    8   19    4 |    17   21   13   18   20   13   23   18   15   18    13
  21M |    8   18    7    6   14    8   23   16   11   17    4 |    34   35   31   31   34   35   40   35   36   37    32
  22  |    5   17    7    7   15    4   19   10    9   19    4 |    13   24   20   14   29   15   26   15   13   16    14
  23E |    6   22    7   11   13    5   17   10    7   10    3 |    15   28   16   16   18   14   22   15   13   14    13
  24  |    7   11    6    8   13    5   11   14   10   17    3 |    39   39   41   41   42   41   39   43   42   43    39
 X25M |   23  ---   15   27  ---   17  ---   21   19  ---   10 |    65  ---   61   58  ---   59  ---   58   61  ---    60
  26E |    9   14    8   12   14    6   14    8   24   13    4 |    19   23   22   26   24   21   25   21   30   27    20
  27  |    7   11    9    9   12    4   11    9    9   12    3 |    14   17   15   19   18   15   19   20   15   22    14
  28  |    7   20    6    8   21    4   17    9   10   20    4 |    17   29   23   14   31   17   30   15   16   21    17
 X29E |    8   18    8   11   17    4   22   14    8  ---    4 |    19   25   20   20   29   21   26   23   23  ---    19
  30M |    5   15    5    6   11    6   13    9    9    9    3 |    20   26   21   20   28   18   25   23   18   21    20
  31  |    7   16    9    9   22    4   21    9   10   14    4 |    17   25   18   17   29   16   29   18   18   17    15
  32  |    5   14    6    7   12    5   15    8    7   11    3 |    13   17   14   11   19   11   18   15   11   13    11
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   17    8   10   16    5   17   10   11   18      |T   23   28   24   24   28   24   28   24   23   25    22
 WRMS |    7   17    7    9   14    5   17   10    9   16      |NE  20   25   20   22   25   25   25   21   20   24    18
 MEDI |    7   17    8    9   15    5   17    9    9   16      |MD  19   28   20   20   28   18   26   20   20   22    18

Table 3.1596.2   GPS week: 1596   Day: 2   MJD: 55418.000                            

        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  |   28  ---  ---   21  ---   28  ---   13   38  ---   14 |    27  ---  ---   23  ---   43  ---    9    3  ---    15
   2  |    7   17    8    9   16    5   18    6    6   44    5 |    19   27   23   22   22   20   29   21   20   39    20
   3E |    9   16    8    7   19    6   15    9   22   14    4 |    30   37   35   30   34   31   40   32   36   29    30
   4  |    8    9   10   10   13    3   11    5    9   25    3 |    43   44   45   50   46   44   42   45   47   43    44
   5  |    6   18    8   14   16    5   21   10   11   18    4 |    11   23   13   18   20   12   24   16   13   15    11
   6E |   11   19   10   11   20    7   16   15   22   17    5 |    36   44   41   39   48   40   46   44   51   48    41
   7  |    7   19    9   10   19    4   17    6   11   18    4 |    16   31   22   21   29   17   29   20   20   19    19
   8M |    7   12    7    6   18    3    9    7   12   23    3 |    32   36   32   33   35   32   35   35   33   39    32
   9  |    8   16    9    5   13    4   13    9    8   14    3 |    19   23   24   19   24   22   21   23   21   24    20
  10  |    7   12    5    7   14    4   12    5    8   15    3 |    16   23   21   20   25   19   19   19   20   20    18
  11M |    7   15    8    9   20    5   17    5    6    9    3 |    25   35   31   29   39   28   33   30   30   30    28
  12  |    7   21   10   14   22    5   25   10   10   17    4 |    20   29   14   17   31   16   30   17   19   18    15
  13E |    5   16    8    8   13    7   19    7    8   11    3 |    20   24   20   20   31   18   27   21   19   21    19
  14E |    7   11    7   11   16    5   21    9    8   12    3 |    11   20   15   15   20   12   20   15   14   14    12
  15E |    8   27   10   11   15    3   24   10    7   15    4 |    12   26   18   18   21   14   24   14    9   21    13
  16  |    8   22    9   12   15    6   28    9   11   17    4 |    16   27   19   12   30   14   33   17   18   19    16
  17E |    7   16    9    8   27    5   19    7    8   21    4 |    27   34   30   27   32   26   36   26   28   26    27
  18M |    8   19   10   13   14    6   26    9    8   28    4 |    29   38   35   35   33   32   41   35   35   44    33
  19E |   10   24   10   11   23    5   20   12    9   12    4 |    36   50   43   42   47   40   46   45   42   47    41
  20M |    6   17   11    8   10    7   18   11   10   24    4 |    18   22   16   18   22   17   24   23   19   25    17
  21  |    8   20    8    8   16    6   26   11    8   19    4 |    29   39   30   28   33   26   38   28   31   32    29
  22M |    8   17   11    7   15    5   22    9    7   20    4 |     9   23   15   13   23   11   26   16   13   14    12
  23E |    7   19    8    9   22    5   18    8   11   12    4 |    10   26   15   17   21   13   22   12   15   14    12
  24  |    5   13    5    8   15    7   14    9   11   17    3 |    29   31   30   29   33   31   28   33   37   39    32
 X25  |   26  ---   24   23  ---   13  ---   25   20  ---   12 |    65  ---   57   54  ---   57  ---   54   55  ---    54
  26E |   12   12   12   10   16    5   15   10   23   15    4 |    20   23   25   26   27   21   27   19   27   25    20
  27  |    7   14    9    7   13    5   14    9   10   13    3 |    25   28   30   26   31   27   27   29   28   27    26
  28M |    9   19    7    9   21    5   17    8   11   23    4 |    20   31   25   16   31   17   30   20   19   20    18
 X29E |    9   24    9   11   17    4   23    8    9  ---    4 |    21   30   22   26   29   21   30   26   23  ---    21
  30  |    6   12    5    6   15    4   14    9   10   13    3 |    15   20   20   18   23   16   21   21   19   19    17
  31  |    7   16    6   11   22    5   25    9    8   14    4 |    12   26   16   15   29   12   27   15   15   13    13
  32M |    6   13    7    8   16    5   14    7    9   10    3 |    11   18   14   12   21   12   19   14   15   15    12
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    9    9   17    5   19    9   11   19      |T   22   29   25   24   29   23   29   24   24   26    23
 WRMS |    7   17    8    9   17    5   18    8    9   17      |NE  21   28   24   23   28   23   27   22   22   25    21
 MEDI |    7   16    9    9   16    5   18    9    9   17      |MD  20   27   23   21   29   20   28   21   20   24    19

Table 3.1596.3   GPS week: 1596   Day: 3   MJD: 55419.000                            

        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  |   18  ---  ---   29  ---   35  ---   17  ---  ---   15 |    25  ---  ---   24  ---   72  ---   13  ---  ---    22
   2  |    9   18    6   13   19    5   21    8    7   45    5 |    22   31   23   27   29   24   33   22   26   41    23
   3E |    9   16    6   10   14    4   16   11   20   11    4 |    18   27   25   22   27   22   29   25   34   24    22
   4  |    7   12    5    9   12    3   13   10    7   23    3 |    31   30   28   38   33   30   30   31   30   36    30
   5  |    6   20    7   13   12    3   22    9   11   17    4 |    12   24   16   21   20   14   26   17   17   16    14
   6E |   11   16    7   10   14    5   16   15   21   16    4 |    35   43   40   37   43   37   45   42   45   43    38
   7  |    6   17    6   10   14    5   19    9    6   14    3 |    14   25   19   18   27   16   25   14   18   12    15
   8  |    6   14    6    8   16    3   10   11    7   23    3 |    18   23   23   21   20   18   23   17   19   29    18
   9  |    8   16    6    9   16    4   12   13    9   15    3 |    13   18   15   15   16    9   17   18   12   17    11
  10  |    7   14    6    9   12    4   17   11    6   18    3 |    17   23   23   25   28   21   24   25   20   25    20
  11  |    7   14    5    9   17    3   18    5    9   10    3 |    20   27   20   22   34   20   29   20   17   21    19
  12  |    8   22    8   16   32    6   26    8   12   20    5 |    24   33   24   24   33   22   34   25   22   22    21
  13E |    6   15    5   12   19    4   22    8   10   13    3 |    22   28   25   27   27   22   28   23   25   24    23
  14E |    8   14   10    9   17    6   18   17    8   11    4 |    14   24   26   14   25   18   25   28   19   21    19
  15E |    8   23    7   12   24    3   22   12    7   15    4 |    15   23   20   19   24   16   24   18   17   22    16
  16  |    7   21    6   16   12    6   25    8   10   17    4 |    21   32   20   16   28   19   34   20   26   22    20
  17E |    6   20    8   13   23    4   19   10    9   26    4 |    40   45   42   44   45   42   46   41   42   49    41
  18  |    6   20    5   14   16    5   22    8    6   29    4 |    18   29   21   25   26   17   29   23   20   26    19
  19E |    5   21    9   10   16    5   18    9   12   11    4 |    49   57   53   53   56   51   57   51   56   49    51
  20  |    7   15    4   12   10    4   17    6    8   19    3 |    21   21   20   21   24   16   21   18   19   14    17
  21  |   10   19    6    8   13    5   22   13   13   22    4 |    28   36   29   31   36   28   36   30   29   30    28
  22  |    7   17    5    8   15    6   18   11    8   23    4 |    14   26   23   21   27   16   28   23   18   22    18
  23E |    9   21    6   14   19    4   19    9    9   10    4 |    19   28   20   19   21   18   25   18   17   18    17
  24  |    5   11    6    7   16    5   11    9   11   17    3 |    54   56   57   60   61   58   57   59   58   59    57
 X25  |   34  ---   17   25  ---   13  ---   28   20  ---   13 |    64  ---   55   44  ---   46  ---   40   39  ---    48
  26E |   12   15    8   10   22    4   17   12   18   17    4 |    18   23   21   24   33   18   27   20   24   23    18
  27  |    8   12    6   10   15    3   12   13    7   14    3 |    18   20   23   18   23   17   23   21   19   21    18
  28  |    6   20    6    8   18    3   19   10    5   23    4 |    15   30   21   21   32   16   31   18   16   21    17
 X29E |   10   26    8   13   17    5   25   19   10  ---    5 |    30   39   30   32   37   31   37   38   35  ---    31
  30  |    7   15    4    7   11    3   15   11    9   12    3 |    14   20   15   17   21   14   21   20   14   16    13
  31  |    6   15    7   12   18    5   23    8   12   14    4 |    17   27   21   18   28   17   29   19   26   19    18
  32  |    5   14    7    9   13    4   11    8    8   11    3 |    18   21   19   18   24   17   21   19   18   18    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   17    6   11   17    4   18   10   11   19      |T   23   29   26   26   30   25   30   25   25   26    23
 WRMS |    7   17    6   10   15    4   18   10    7   17      |NE  22   28   24   25   29   27   29   23   25   26    22
 MEDI |    7   16    6   10   16    4   18   10    9   17      |MD  18   27   23   22   27   18   28   21   20   22    19

Table 3.1596.4   GPS week: 1596   Day: 4   MJD: 55420.000                            

        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  |   21   65  ---   28  ---  115  ---  ---  ---  ---   24 |    19   36  ---   27  ---   63  ---  ---  ---  ---    17
   2  |    8   21    9    9   17    4   22   12   12   46    5 |    23   32   29   25   22   25   32   27   28   43    25
   3E |    9   17    7   14   21    5   14   11   18   10    4 |    16   26   18   23   25   20   25   21   24   19    18
   4  |    6   12    6    8   13    4   11   17    9   21    4 |    42   41   46   42   44   42   39   50   40   45    43
   5  |    9   17   10   11   12    3   17    9    9   18    4 |    17   21   20   22   24   17   22   22   18   21    17
   6E |    9   20    8   12   15    4   16   17   21   17    5 |    24   39   30   25   36   26   39   35   30   35    28
   7  |    8   16    8   10   17    3   18    7   12   12    4 |    14   26   22   17   29   16   28   17   14   14    16
   8  |    5   11    7    5   15    5    9   10   11   22    3 |    18   25   21   23   24   20   27   22   21   30    19
   9  |    7   17    5    6   13    4   14   12   10   15    3 |    17   25   20   24   22   19   18   27   25   28    19
  10  |    8   13    6    8   12    4   11   11    7   18    3 |    21   24   28   25   29   24   23   28   25   30    24
  11  |    8   15    6    7   18    4   17    6    9   13    3 |    22   29   27   23   37   23   30   24   20   24    23
  12  |    8   21   11   16   25    5   24   14    9   18    5 |    23   31   20   25   29   20   33   22   17   21    19
  13E |    6   18    5    7   15    5   19    9   11   10    3 |    19   27   19   18   30   18   26   21   20   19    19
  14E |    7   14    7   10   15    4   20   12   10   13    4 |    17   21   21   18   23   15   23   20   20   17    17
  15E |    6   22    8   11   17    4   21   13   11   18    4 |    14   24   20   24   21   18   24   19   16   24    16
  16  |    8   23    8   14   18    4   21    9   10   15    4 |    18   31   19   15   29   17   32   19   20   20    18
  17E |    7   18    7   11   25    4   18   15    9   19    4 |    31   35   29   27   31   28   32   38   31   39    30
  18  |    7   22    9   10   13    5   23   12    7   28    4 |    22   31   25   25   26   22   33   23   20   26    21
  19E |    5   20    6   11   18    6   16    7    7   15    3 |    52   56   52   47   53   50   51   52   53   56    51
  20  |    6   17    6    8   10    3   15    7    5   19    3 |    19   23   22   19   26   18   22   20   18   18    19
  21  |    7   19    8    8   14    4   23    9   11   21    4 |    21   31   26   25   29   24   32   25   23   24    23
  22  |    8   19    9   10   16    5   18   11    9   23    4 |    15   27   24   21   26   17   29   24   19   22    19
  23E |    7   19    6    8   16    4   18   11   11   23    4 |    17   28   21   14   26   18   26   21   20   27    18
  24  |    5   10    5    9   13    5   12    8    9   15    3 |    30   29   31   24   34   29   29   27   34   29    30
 X25  |   36  ---   19   24  ---   16  ---   26   19  ---   13 |    61  ---   45   32  ---   39  ---   28   30  ---    40
  26E |   10   17    8   11   23    6   14   21   22   22    5 |    14   25   20   22   31   18   26   28   29   26    18
  27  |    7   17    6    8   13    5   14   14   10   15    3 |    26   32   26   32   27   27   26   36   32   37    27
  28  |    7   19    8    7   22    4   17   11    8   25    4 |    19   29   23   21   34   18   31   22   17   27    19
 X29E |    7   23   10   12   11    3   21    9   12  ---    4 |    29   36   33   27   33   29   37   29   33  ---    30
  30  |    6   15    5    7   16    3   12    8   10   14    3 |    18   23   22   22   22   18   24   21   19   18    18
  31  |    5   14    7    9   21    4   18    9   11   14    3 |    16   27   21   20   30   17   28   18   19   18    17
  32  |    5   15    8    8   13    3   12   12    7   10    3 |    15   18   21   15   23   16   18   20   18   17    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   17    7   10   17    4   17   12   11   20      |T   22   29   25   24   29   24   28   26   24   26    22
 WRMS |    7   17    7    9   15    4   17   10    8   18      |NE  22   29   26   24   29   26   27   27   25   28    23
 MEDI |    7   17    7    9   15    4   17   11   10   18      |MD  19   28   22   23   29   20   28   23   20   24    19

Table 3.1596.5   GPS week: 1596   Day: 5   MJD: 55421.000                            

        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  ---  ---   18  ---  312  ---  ---  ---  ---   15 |    17  ---  ---   28  ---  175  ---  ---  ---  ---    18
   2  |    8   21   10   10   17    6   23   15   10   48    6 |    21   32   28   23   29   24   34   25   21   48    23
   3E |   10   20    8    7   25    4   16   10   25   10    5 |    18   28   21   24   33   22   29   24   37   24    22
   4  |    8   14   10    8   11    5   12   12   12   21    4 |    29   33   33   32   30   30   34   35   29   37    30
   5  |    8   18    8   12   11    4   19    9    8   18    4 |    11   22   14   19   16   15   24   18   14   20    13
   6E |   10   22    8    8   19    4   17   16   23   17    5 |    30   46   39   35   46   37   47   44   42   46    37
   7  |    7   18    5   10   16    4   18    8   10   12    3 |    11   25   17   15   27   12   26   13   12   11    13
   8  |    5   12    7    8   14    4   11   11   10   21    3 |    16   23   18   19   18   16   23   21   14   28    17
   9  |    6   12    8    5   12    3   10   13   11   14    3 |    14   21   17   21   22   17   22   27   20   24    17
  10  |    8   12    7   10   16    5   13   12   13   18    4 |    20   23   25   22   26   21   24   24   19   27    21
  11  |    7   16    5   11   19    6   22    7    9   10    3 |    15   27   17   18   34   15   28   15   20   16    16
  12  |    7   18    8   15   24    5   22    9   13   18    4 |    21   26   17   20   28   17   29   22   15   19    17
  13E |    5   16    8    7   22    4   21    8   10   14    4 |    21   26   25   24   32   23   30   23   25   25    23
  14E |    6   17    9   11   17    3   20   10   12   14    4 |    14   22   23   19   24   16   23   21   18   17    17
  15E |    9   28    9   15   15    5   22   12   13   17    5 |    13   29   22   26   27   19   26   22   19   28    18
  16  |    6   22    8   15   18    4   24   10   12   17    4 |    17   30   20   14   27   17   34   19   18   20    18
  17E |    6   17    9   12   18    4   22   10   12   10    4 |    38   43   44   38   41   40   47   39   39   39    39
  18  |    6   22   10    9   13    5   24   21    9   28    5 |    15   28   21   21   23   19   31   22   22   20    16
  19E |    4   19    8    7   16    7   16   11    9   12    3 |    30   35   34   29   34   30   38   30   33   30    30
  20  |    6   17    6   11   12    4   16    9   12   20    4 |    15   20   16   17   18   13   22   18   15   14    13
  21  |    7   20    9    6   14    6   27   11    8   20    4 |    23   34   29   27   33   28   40   27   27   25    26
  22  |    7   18   12    7   15    5   21    9    7   22    4 |    16   29   26   20   28   20   31   22   21   23    20
  23E |    7   19    9    8   18    6   20   11   11   15    4 |    14   24   17   14   18   12   22   19   16   21    14
  24  |    4   10    7    6   17    3   11    9   11   14    3 |    40   43   48   46   48   45   45   46   46   48    45
 X25  |   25  ---   21   27  ---   23  ---   32   28  ---   13 |    49  ---   53   37  ---   41  ---   31   30  ---    39
  26E |   11   19    8   10   20    5   14   19   23   19    5 |    13   26   19   22   26   17   26   23   26   25    17
  27  |    7   13    9    9   16    4   10   15   12   12    4 |    22   30   25   31   33   25   28   35   27   31    26
  28  |    6   20    9    9   23    5   17    9    8   27    4 |    12   29   22   16   31   15   28   15   15   22    15
 X29E |    5   32    7   11   15    6   22   10    9  ---    5 |    16   33   19   19   27   18   29   19   15  ---    17
  30  |    6   12    5   11   17    4   12   10   10   14    3 |    14   20   17   15   21   14   22   17   15   15    14
  31  |    7   14    7    9   23    3   19    8   10   16    4 |    16   27   19   17   30   17   28   16   19   17    15
  32  |    6   16    5    9   14    4   12   13   12   13    3 |    13   13   17   16   19   14   20   20   17   17    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   18    8   10   17    5   18   12   13   19      |T   19   28   24   23   28   26   29   24   22   25    21
 WRMS |    7   18    8   10   16    4   17   11   10   18      |NE  19   28   24   24   28   36   29   25   22   28    21
 MEDI |    7   18    8    9   16    4   18   10   11   17      |MD  16   27   21   21   27   18   28   22   20   24    17

Table 3.1596.6   GPS week: 1596   Day: 6   MJD: 55422.000                            

        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  |   14  ---  ---   20  ---  228  ---  ---  ---  ---   17 |    24  ---  ---   23  ---  174  ---  ---  ---  ---    21
   2  |    7   23    7    8   14    4   24   13   12   50    6 |    24   34   24   21   30   23   35   22   22   51    22
   3E |    9   18    6    9   12    4   18   13   24   13    4 |    26   32   25   21   28   24   34   23   36   22    23
   4  |    7   11    9    5   15    4   10   14   13   22    4 |    29   27   30   31   36   27   28   32   27   40    28
   5  |    9   18   11   11   18    3   19    6   17   23    4 |    13   20   16   16   24   13   25   16   17   21    13
   6E |    8   19    7    9   15    4   17   17   23   14    4 |    33   45   37   38   43   36   46   41   46   42    37
   7  |    7   21    7   10   20    4   20    5   11   14    4 |    12   27   19   15   27   13   27   12   13   13    13
   8  |    5   12    7    4   18    3    8    5   15   22    3 |    16   21   17   12   18   13   23   16   17   26    16
   9  |    9   13    8    7   13    4   11   10   16   12    3 |    19   23   21   11   22   16   23   16   15   17    17
  10  |    7   11    7    6   16    4   11    7   13   17    3 |    22   22   25   22   32   22   23   25   22   23    22
  11  |    6   15    6    6   20    4   19    8    9    9    3 |    22   29   27   26   39   24   30   25   20   26    23
  12  |    7   19   12   11   25    5   24    9   14   21    5 |    23   31   21   15   32   20   35   22   17   23    19
  13E |    7   13    6    7   19    3   20   10   15   28    4 |    22   25   22   17   28   19   27   22   23   31    20
  14E |    7   16    8   10   16    5   20   13   13   16    4 |    12   22   20   15   23   14   23   19   17   18    14
  15E |    8   23   10   13   17    4   22    9   14   18    4 |    15   22   19   17   24   13   23   18   15   25    16
  16  |    7   22    6   13   25    5   22   12    9   22    4 |    22   34   20   18   37   20   36   20   26   21    21
  17E |    7   15    7    8   24    4   21   13   13   11    4 |    32   41   39   36   38   35   41   30   35   35    33
  18  |    7   19    8   10   15    3   23   18    9   30    5 |    17   28   20   21   24   17   31   22   17   26    17
  19E |    6   22    6   13   21    4   17    8    9   10    4 |    55   63   56   57   55   56   60   54   59   56    54
  20  |    7   16    7   10   21    5   22   10   14   24    4 |    19   23   22   18   28   18   24   17   18   17    18
  21  |   10   19    8    8   19    6   27   12   13   19    4 |    24   36   24   23   32   22   36   25   20   23    22
  22  |    8   16    7    9   14    3   23    6    7   21    4 |    18   28   22   19   27   17   29   18   17   20    17
  23E |    6   19    8   10   19    5   20    9   14   26    4 |    14   23   15   15   19   12   23   14   15   23    12
  24  |    4   10    4    8   17    3   14    8   11   13    3 |    37   38   40   42   44   38   35   38   40   43    38
 X25  |   25  ---   20   21  ---   16  ---   24   20  ---   11 |    64  ---   51   43  ---   41  ---   38   39  ---    46
  26E |   13   14    8    9   18    6   15   22   24   18    5 |    16   22   19   24   21   17   26   26   28   27    18
  27  |    8   14    7    8   13    5   10   13   16   13    3 |    22   27   25   15   25   20   27   20   19   20    21
  28  |    7   21    7   10   21    5   19    8   13   27    4 |    18   28   20   17   31   16   31   18   18   26    17
 X29E |    9   22    9   11   26    3   27   10   13  ---    5 |    25   31   25   21   35   25   38   24   29  ---    24
  30  |    8   10    6    7   21    4   11    6   11   13    3 |    18   22   17   18   28   17   26   16   19   14    18
  31  |    5   16    7   10   21    6   16    7   11   17    3 |    17   28   16   21   33   18   29   17   18   19    18
  32  |    6   13    6    9   20    5   20   15   14   14    4 |    15   19   18   13   27   15   20   20   16   16    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    7    9   19    4   19   11   14   21      |T   23   29   24   22   30   26   30   23   23   26    22
 WRMS |    7   17    8    8   18    4   19   10   11   18      |NE  21   28   23   21   31   34   28   21   21   26    21
 MEDI |    7   16    7    9   18    4   19   10   13   18      |MD  22   27   22   19   28   19   28   22   19   23    19



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 4.1596   GPS week: 1596   MJD: 55416.0-55422.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3052 |U    8     8    23 |U    7     9    27 |U    9     8    18 |
emr | emr 2906 |    11    10    28 |U   10    15    38 |    10     9    21 |
esa | esa 2976 |     9     9    25 |U    7     9    26 |     9     8    18 |
gfz | gfz 3060 |U    8     8    23 |U    8    14    31 |U    8     7    17 |
grg | grg 2880 |     9    10    23 |U    6    10    27 |    10     7    20 |
igr | igr 2970 |     9     8    24 |     7    11    27 |     9     8    17 |
igs | igs 2951 |     9     8    23 |     7     9    26 |     9     8    18 |
jpl | jpl 2865 |U    9     9    25 |     9    15    37 |     8     8    20 |
mit | mit 3030 |U    8     8    22 |U   10    19    39 |U   15    16    34 |



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 5.1596.0   GPS week: 1596   Day: 0   MJD: 55416.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3062 |    11    11    27 |  ----  ----  ---- |    10     8    28 |
emr | emr 2957 |    11    11    22 |  ----  ----  ---- |    10     8    23 |
esa | esa 2976 |     9     9    18 |  ----  ----  ---- |     9     7    20 |
gfz | gfz 3060 |     9     8    18 |  ----  ----  ---- |     8     6    20 |
grg | grg 2880 |    10    10    17 |  ----  ----  ---- |  ----  ----  ---- |
igr | igr 2986 |     9     7    17 |  ----  ----  ---- |     9     6    19 |
igs | igs 2958 |     9     8    17 |  ----  ----  ---- |     9     7    21 |
jpl | jpl 2868 |    10     8    19 |  ----  ----  ---- |     9     8    23 |
mit | mit 3072 |     8     8    18 |  ----  ----  ---- |    11    12    40 |

Table 5.1596.1   GPS week: 1596   Day: 1   MJD: 55417.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3024 |     7     6    15 |     5     9    20 |     8     8    14 |
emr | emr 2957 |     8     8    24 |     9    12    28 |    11     8    17 |
esa | esa 2976 |     7     8    19 |     6     7    19 |     9     6    13 |
gfz | gfz 3060 |     7     7    20 |     5    11    21 |     8     6    12 |
grg | grg 2880 |     7     7    20 |     8     9    26 |    10     5    15 |
igr | igr 2933 |     8     7    21 |     5    10    23 |     8     5    15 |
igs | igs 2918 |     7     7    18 |     6     7    23 |     8     6    13 |
jpl | jpl 2866 |     7     7    18 |     7    15    24 |     9     7    16 |
mit | mit 3072 |     7     7    19 |     7    15    22 |     9    12    33 |

Table 5.1596.2   GPS week: 1596   Day: 2   MJD: 55418.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3043 |     6     6    18 |    17    17    54 |    10    11    18 |
emr | emr 2868 |    11    12    26 |    18    26    62 |    13    13    22 |
esa | esa 2976 |     7     6    19 |    17    18    55 |    10     9    21 |
gfz | gfz 3061 |     7     6    21 |    17    18    58 |     9     9    20 |
grg | grg 2880 |  ----  ----  ---- |     9    15    34 |  ----  ----  ---- |
igr | igr 3002 |     8     7    19 |    13    17    40 |    10    10    20 |
igs | igs 3003 |     7     6    18 |    16    18    55 |    11     9    20 |
jpl | jpl 2861 |     8     8    23 |    17    22    59 |    10    11    23 |
mit | mit 3072 |     7     7    19 |    19    26    66 |    46    53    79 |

Table 5.1596.3   GPS week: 1596   Day: 3   MJD: 55419.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3070 |    10     7    26 |     8    11    33 |     9     9    18 |
emr | emr 2867 |    15    12    41 |    11    19    50 |    11    13    24 |
esa | esa 2976 |    12     8    33 |     8    12    31 |     8    10    22 |
gfz | gfz 3060 |    11     7    26 |     9    21    40 |     8    10    20 |
grg | grg 2880 |    12     8    27 |     7    14    40 |    11    11    22 |
igr | igr 2969 |    12     8    34 |     8    12    32 |     8    10    20 |
igs | igs 2911 |    12     8    30 |     8    12    31 |     8    10    23 |
jpl | jpl 2867 |    11     9    32 |    10    15    50 |     9    11    22 |
mit | mit 3072 |    10     7    26 |    11    19    45 |    13    14    30 |

Table 5.1596.4   GPS week: 1596   Day: 4   MJD: 55420.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3060 |     9     9    31 |     5     5    18 |    11     9    18 |
emr | emr 2961 |    11     9    31 |     8    11    26 |    11    11    19 |
esa | esa 2976 |     9    10    33 |     5     5    16 |    11     9    16 |
gfz | gfz 3060 |     9     9    32 |     6     8    21 |    10     8    16 |
grg | grg 2880 |     9     9    27 |     5     7    17 |    13     9    19 |
igr | igr 2967 |    10     9    31 |     5     6    21 |    11     9    16 |
igs | igs 2967 |     9     8    31 |     4     4    16 |    10     9    17 |
jpl | jpl 2861 |    10     8    29 |     7    11    26 |     9     9    22 |
mit | mit 2976 |     9     8    31 |     9    19    31 |     9     8    18 |

Table 5.1596.5   GPS week: 1596   Day: 5   MJD: 55421.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3055 |     9    12    26 |     5     4    19 |     7     5    14 |
emr | emr 2868 |    11    12    31 |     7     7    26 |     7     5    21 |
esa | esa 2976 |    10    13    29 |     4     5    19 |     8     6    14 |
gfz | gfz 3060 |     8    11    27 |     7    16    27 |     7     6    14 |
grg | grg 2880 |    10    12    23 |     4     7    21 |     9     4    21 |
igr | igr 2957 |     9    12    28 |     4     6    18 |     7     5    13 |
igs | igs 2934 |    10    11    28 |     5     5    18 |     7     5    13 |
jpl | jpl 2865 |    10    13    33 |     6    10    22 |     7     6    19 |
mit | mit 2976 |     8    10    27 |     8    18    29 |     8     5    16 |

Table 5.1596.6   GPS week: 1596   Day: 6   MJD: 55422.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 3050 |     7     9    16 |     4     5    17 |     9     9    18 |
emr | emr 2868 |    11    10    24 |     6    17    35 |     7     6    20 |
esa | esa 2976 |     8     9    25 |     4     5    16 |     8     8    18 |
gfz | gfz 3060 |     7     8    17 |     4     7    21 |     8     8    17 |
grg | grg 2880 |     8    13    22 |     5     7    22 |     9     7    23 |
igr | igr 2979 |     7     8    17 |     4    13    29 |     8     7    18 |
igs | igs 2971 |     8     9    21 |     4     5    15 |     8     8    19 |
jpl | jpl 2867 |     8     8    21 |     6    18    39 |     7     9    17 |
mit | mit 2976 |     7     7    16 |     7    16    39 |     8    11    22 |


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 6.1596   GPS week: 1596   MJD: 55416.500-55422.500

                                                         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 |     -19     -36      39     -60     -7 |       6     13
            |      19      18     102      87      6 |       2
emr   uuuuu |      15      22      45     155     14 |      44     46
            |       7      18      66      82      6 |      10
esa   uuuuu |     -13     -38      78      -1      3 |      14     20
            |       7      14      62      53      6 |       5
gfz   uuuuu |      29      27     -66      11      0 |       1     11
            |      15      16      47      50      4 |       3
grg   uuuux |     -12     -58     110    -252    -26 |      -1     32
            |      30      48     180     134     41 |       4
igr   xxxxx |       7      42      -2      38      2 |       1     12
            |       8      11      40      36      7 |       5
irf   xxxxx |       3     -16     -39     -55     -4 |      -1     13
            |      15      18      78      48     11 |       4
jpl   uuuuu |      19     -20      25     -33      3 |      38     41
            |      19      22     123      60     16 |       7
mit   uuuuu |     -12     -32     -56    -172     -3 |      11     18
            |      17      30      95      66     12 |       4
ngs   uuuuu |      -3      58     -48     231      1 |       6     13
            |      20      43     104     103      9 |       3
sio   uuuuu |     -21      71     -37      43     -9 |      32     34
            |      20      23     142      97     12 |       3


Table 7.1596.0   GPS week: 1596   Day: 0   MJD: 55416.500

                                                         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 |      -7     -20    -113    -223     -4 |       1     13
emr   uuuuu |      11      18     -50      35     14 |      30     33
esa   uuuuu |     -14     -39      65      48     12 |       7     14
gfz   uuuuu |      22      30    -124     105     -1 |      -4     11
grg   uuuux |      29    -128     360      -9   -110 |       8     20
igr   xxxxx |       4      46     -41      67      3 |      -7     14
irf   xxxxx |       1      15      -6    -117      7 |      -9     14
jpl   uuuuu |       5     -27      -7    -115     23 |      25     32
mit   uuuuu |      -8      21       6    -308      5 |       5     12
ngs   uuuuu |       3      -5     -48     219    -18 |       2     12
sio   uuuuu |     -41     111       5     -75      3 |      27     29

Table 7.1596.1   GPS week: 1596   Day: 1   MJD: 55417.500

                                                         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 |      -8     -50       7      32     -4 |       5     13
emr   uuuuu |       5      -5      46     150     22 |      35     38
esa   uuuuu |     -21     -38      81      -2      1 |      11     18
gfz   uuuuu |      31      23    -129       5     -6 |      -1     11
grg   uuuux |      14     -30      25    -201    -26 |      -1     33
igr   xxxxx |      10      42       8      74      4 |      -3     13
irf   xxxxx |      14     -11      25     -11      5 |      -5     14
jpl   uuuuu |      15     -44      51      -9     21 |      32     38
mit   uuuuu |       3     -21      75    -123      7 |       8     15
ngs   uuuuu |      -5      64    -152     125      0 |       4     11
sio   uuuuu |     -25      73       9      78      2 |      30     32

Table 7.1596.2   GPS week: 1596   Day: 2   MJD: 55418.500

                                                         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 |     -20     -23     -27       4    -14 |       6     12
emr   uuuuu |      23      49     -10     103     12 |      40     42
esa   uuuuu |      -2     -59     196      38     -4 |      13     19
gfz   uuuuu |      10      40     -35      41     -3 |       0      9
grg   uuuux |     -43     -74     104    -434      8 |      -5     34
igr   xxxxx |      -1      30      13      66     -5 |       0     10
irf   xxxxx |      12      -4     -72      15      4 |      -3     12
jpl   uuuuu |      33      -8     -50     -45     -1 |      38     41
mit   uuuuu |       3     -14     -77    -120      8 |      10     16
ngs   uuuuu |     -23      27     -61     165      1 |       5     11
sio   uuuuu |      -9      86    -147     157      0 |      31     33

Table 7.1596.3   GPS week: 1596   Day: 3   MJD: 55419.500

                                                         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 |     -36     -58      -1    -125    -15 |       7     12
emr   uuuuu |      18      36      33     135     19 |      44     46
esa   uuuuu |     -12     -24       6      39      1 |      14     20
gfz   uuuuu |      34      27     -35     -31     -3 |       1     10
grg   uuuux |       0     -84     205    -220     11 |      -2     34
igr   xxxxx |       7      60      17     -17     -7 |       2     10
irf   xxxxx |      -7     -15     -95     -40     -1 |      -1     13
jpl   uuuuu |      23       2     277    -108    -21 |      40     43
mit   uuuuu |     -19     -34    -124    -141      2 |      12     19
ngs   uuuuu |       4      48     -24     131      4 |       6     12
sio   uuuuu |     -32      60    -130     133     -6 |      32     34

Table 7.1596.4   GPS week: 1596   Day: 4   MJD: 55420.500

                                                         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 |     -13     -22     109     -26     -7 |       5     12
emr   uuuuu |      23      10      72     274      5 |      48     50
esa   uuuuu |     -22     -51      98    -103      2 |      15     20
gfz   uuuuu |      19      -3     -53     -40      1 |       1     10
grg   uuuux |      -7     -32      78    -252    -19 |      -2     34
igr   xxxxx |      -6      31     -72      37     -2 |       2     10
irf   xxxxx |     -19     -31     -77     -53     -7 |       0     13
jpl   uuuuu |      51      13     -81      46     -4 |      39     42
mit   uuuuu |     -41     -58    -127    -147     -7 |      13     19
ngs   uuuuu |      36     123      39     263      2 |       7     13
sio   uuuuu |     -40      52     -76      95    -15 |      33     35

Table 7.1596.5   GPS week: 1596   Day: 5   MJD: 55421.500

                                                         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 |     -51     -60     101     -46      1 |       7     13
emr   uuuuu |      18      31      71     249     14 |      53     55
esa   uuuuu |     -12     -38      79       4     10 |      19     24
gfz   uuuuu |      57      49     -80     -20      3 |       4     13
grg   uuuux |     -22     -78     211    -358     -9 |      -2     34
igr   xxxxx |      17      48      18      -3     12 |       5     12
irf   xxxxx |      -3     -37    -137     -97    -17 |       3     13
jpl   uuuuu |      16     -43      45      11     -6 |      44     46
mit   uuuuu |     -25     -62    -181    -196    -18 |      16     21
ngs   uuuuu |     -22     101     105     308      6 |      10     16
sio   uuuuu |     -16      41    -162     -11    -25 |      35     37

Table 7.1596.6   GPS week: 1596   Day: 6   MJD: 55422.500

                                                         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 |       5     -22     194     -40     -3 |       7     14
emr   uuuuu |      10      14     156     137     10 |      56     59
esa   uuuuu |      -9     -20      21     -33      2 |      21     26
gfz   uuuuu |      28      25      -4      17      6 |       5     14
grg   uuuux |     -54      20    -213    -290    -38 |      -3     33
igr   xxxxx |      16      40      43      39      9 |       7     16
irf   xxxxx |      24     -28      90     -85    -19 |       3     12
jpl   uuuuu |      -9     -31     -62     -12     11 |      46     48
mit   uuuuu |       5     -54      33    -167    -21 |      15     20
ngs   uuuuu |     -15      47    -197     408     10 |      11     19
sio   uuuuu |      15      77     245     -78    -24 |      34     35



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