[IGSREPORT-18569] Wk 1581 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu May 13 04:54:07 PDT 2010


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IGS Electronic Report   13 May 04:54:20 PDT 2010      Message Number 18569
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1581   (Apr 25, 2010 - May 01, 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:

igs1581[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1581[0-6].clk  IGS GPS satellite and station clocks in clock RINEX format.
igs1581[0-6].cls  IGS GPS clock combination summary report.
igs15817.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15817.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.  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   | 9
                0  |  EMR   | 8 27 8 27 WTZR WTZR
                0  |  ESA   | UNSA
                0  |  GFZ   | DRAO
                0  |  GRG   | BRAZ ONSA
                0  |  JPL   | 8 27 DGAR
                0  |  MIT   | 8 9 27 8 27
                1  |  ALL   | 1 1
                1  |  COD   | 9 9
                1  |  EMR   | 8 27 8 WTZR KERG WTZR
                1  |  GFZ   | SYOG UNSA
                1  |  GRG   | ONSA
                1  |  JPL   | 8 9 DGAR
                1  |  MIT   | 8 22 27 8 CAS1 CAS1
                2  |  EMR   | 8 9 27 8 9 27 WTZR WTZR
                2  |  ESA   | UNSA
                2  |  GFZ   | 9 DAV1
                2  |  GRG   | ONSA
                2  |  JPL   | 8 9 27 DGAR YEBE
                2  |  MIT   | 8 9 27 8 9 27 DAV1 DAV1
                2  |  NGS   | 1
                3  |  ALL   | 1 1
                3  |  COD   | ONSA ONSA
                3  |  EMR   | 8 9 27 8 9 27
                3  |  ESA   | METS METS
                3  |  GFZ   | 10 TSKB
                3  |  GRG   | SPT0
                3  |  JPL   | 8 9 27 DGAR
                3  |  MIT   | 8 9 10 22 27 28 8 9 10 22 27 28
                4  |  ALL   | 1 1
                4  |  ESA   | STJO USNO NURK STJO UNSA USNO
                4  |  GRG   | ONSA ULAB
                4  |  JPL   | 9 27 DGAR
                4  |  MIT   | 21 22 27 8 21 27 STJO POL2
                5  |  EMR   | 9 9 MATE
                5  |  ESA   | KERG GLSV
                5  |  GFZ   | FAA1
                5  |  GRG   | ONSA
                5  |  JPL   | 9 27 AREQ DGAR UNSA
                5  |  MIT   | 8 9 22 27 8 9 22 27
                5  |  NGS   | 1
                6  |  EMR   | 9 9 WTZR WTZR
                6  |  ESA   | 24 24 MATE UNSA
                6  |  GFZ   | 24 ALBH BAKO DRAO FAA1 FAIR HOLM QIKI YELL
                6  |  GRG   | ONSA
                6  |  JPL   | 8 9 27 DGAR
                6  |  MIT   | 8 9 27 8 9 27 MATE USNO MATE USNO
                6  |  NGS   | 1

 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  |     .2     .5     .4     -10     -2     -6     .0 
       EMR  |    1.4     .5     .4       5      5    -12     .21
       ESA  |    1.8    2.8    2.7      47     54    -58     .08
       GFZ  |    -.1    1.2     .5      -1     13    -46    -.02
       GRG  |   -2.0    3.3    7.7       4      3      6     .45
       JPL  |    1.8    1.6     .7      31    -33      4     .43
       MIT  |    2.8   -2.1   -4.8      22     -2    -17     .15
       NGS  |    4.6    -.1    2.9      -3    -64     10     .09
       SIO  |     .5    1.5     .4      28     -3     -9     .20


 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 1.1581.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1581.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 2.1581.[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 3.1581.[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 5.1581.0-6).

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 1581 summary.                       (Apr 25, 2010 - May 01, 2010)

Table 1.1581.a   GPS week: 1581   MJD: 55311.000-55317.000

         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  246|    0     0     0    33   -15    -3  -.21    9    8 |    -539      51     17     76
        |    1     0     1    18    20    17   .02           |     436     641
emr   94|    0     0     0    10     2     6   .43   20   19 |    -925    -171     18     88
        |    1     1     1    39    22    19   .03           |    2240    1019
esa  149|    0     0     0   -64   -84   -38   .32    9    9 |    -939    1097     12    102
        |    1     1     1    28    21    18   .01           |     830    1511
gfz  200|    0    -1     0    17     7    15  -.09   12   12 |      98     -74     22    106
        |    0     0     1    43    58    14   .03           |     355     490
grg  128|   -1     0     4   -25    14     6   .68   19   18 |    -246     170     53    223
        |    0     1     2    24    33    22   .03           |     361     421
igr  n/a|    0     0    -1    23   -16    23   .05    6    5 |    -970    -948     20     62
        |    0     0     0    23    18    24   .03           |    3858    1108
jpl  124|    2     0    -2   -31    62    46   .51   21   20 |    1588    -144     18    121
        |    0     1     1    16    16    35   .06           |    2093     935
mit  263|    0    -1    -1   -18    -5     8  -.29   13   12 |  -15700     413     21    156
        |    0     0     0    28    24    13   .03           |     636     847
ngs  223|    1     0     0    41   103     9  -.21   13    9 |   13798    -869   2152   3543
        |    1     0     1    18    39    11   .01           |    3047    2910
sio  263|   -4     3     6   -10    -6    -8  -.10   22   21 |     ---     ---    ---    ---
        |    0     0     1    21    26    17   .02           |     ---     ---


Table 1.1581.b   GPS week : 1581   MJD: 55311.000-55317.000   

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



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 2.1581.0   GPS week: 1581   Day: 0   MJD: 55311.000                            

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  246|   -1     0     0    45   -39   -32  -.23    9    8 |    -361    -151     18     76
        |                     23    15                       |
emr   94|    0     0     1    11    22    31   .40   20   20 |    1764    -268     13     76
        |                    -37   -59                       |
esa  149|    0     1     0   -67  -118   -11   .31    8    8 |   -1512    1813     11     87
        |                     32    22                       |
gfz  200|   -1    -2     0     4    46    18  -.15   12   12 |     487    -524     23    104
        |                    -47   -19                       |
grg  128|    0     1     1   -62   -25   -13   .69   21   19 |      -2      47     53    233
        |                    135    29                       |
igr  n/a|    0     0    -1    27   -27    33   .02    6    5 |    3732    -693     18     55
        |                    -42   -50                       |
jpl  124|    1    -1    -3   -48    63    64   .44   21   20 |    3531     -21     17    120
        |                     43   -45                       |
mit  263|    0    -2    -2   -19    22     6  -.35   14   13 |  -15973     559     20    147
        |                      3    31                       |
ngs  223|    0     0     0    71   111    -4  -.21   14    9 |    8055    3882   1972   3849
        |                     45    -9                       |
sio  263|   -3     1     8   -12    26     8  -.11   22   24 |     ---     ---    ---    ---
        |                    -88   -55                       |

Table 2.1581.1   GPS week: 1581   Day: 1   MJD: 55312.000                            

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  246|   -1     0     0    25   -28    24  -.20    9    8 |   -1085     959     16     79
        |                     31     5                       |
emr   94|    1     2     1   -53    25     8   .43   21   21 |     664     -22     14     90
        |                     19   -59                       |
esa  149|    0     0    -1  -101   -99   -36   .31    9    9 |   -2154    2490     11     93
        |                     19    44                       |
gfz  200|    0     0     0    96     9    32  -.07   11   11 |    -481     807     21     97
        |                    -52   -54                       |
grg  128|   -3    -1     2   -36     2   -26   .71   19   18 |    -520     578     52    222
        |                    116   -24                       |
igr  n/a|    0     0     0    22   -27    21   .03    6    5 |    2303    -697     20     61
        |                    -29   -53                       |
jpl  124|    3     0     0   -51    58     4   .49   21   21 |    2831     580     20    135
        |                     22  -106                       |
mit  263|    0    -1    -1     3    23   -19  -.30   13   12 |  -15789     248     20    174
        |                      0    30                       |
ngs  223|    1     1     0    17   105     2  -.22   13   10 |   14000   -2511   2008   3605
        |                    101    -1                       |
sio  263|   -4     3     7    11    15   -21  -.12   21   22 |     ---     ---    ---    ---
        |                    -94   -54                       |

Table 2.1581.2   GPS week: 1581   Day: 2   MJD: 55313.000                            

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  246|    0     0     0    52    18     3  -.22    8    7 |    -829     219     20     78
        |                     -4   -31                       |
emr   94|    1     0     0   -29     6    -9   .43   20   20 |     600   -1334     17     89
        |                     -5    -8                       |
esa  149|    0     0     0   -43   -69   -50   .32    9    9 |   -1302    2238     13    110
        |                      1    26                       |
gfz  200|    0     0     0     0  -107    32  -.09   10   10 |    -120      60     22    106
        |                    -81   -76                       |
grg  128|    0    -1     5   -29    54    38   .73   19   18 |    -158     109     49    225
        |                     90  -138                       |
igr  n/a|    0     0    -1    20    21   -15   .08    7    6 |    1688   -2389     20     62
        |                    -29   -27                       |
jpl  124|    2    -2    -3   -22    74    25   .52   21   20 |    3479   -1128     16    110
        |                     -4   -55                       |
mit  263|    0     0    -1   -46   -43    19  -.29   14   13 |  -16367     796     21    133
        |                     24    53                       |
ngs  223|    1     0     0    43   184    -2  -.20   12    8 |   16077   -2791   2183   3475
        |                     22  -129                       |
sio  263|   -3     3     6   -30   -42    17  -.08   21   22 |     ---     ---    ---    ---
        |                    -73   -39                       |

Table 2.1581.3   GPS week: 1581   Day: 3   MJD: 55314.000                            

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  246|    0     0     0    56     0   -11  -.21    9    8 |     139    -933     16     81
        |                     16    -8                       |
emr   94|   -2    -1     0    10   -22   -16   .43   19   19 |      60   -1222     19     72
        |                    -14    11                       |
esa  149|    0     0     0   -51   -75   -39   .31   10    9 |     146    -676     13    106
        |                     -7    35                       |
gfz  200|   -1     0     3   -49    -9    21  -.10   14   14 |     291    -558     22    105
        |                    -34   -78                       |
grg  128|   -1     0     5    17     9    -4   .65   20   18 |      33     -66     54    201
        |                     54   -57                       |
igr  n/a|    0     0     0   -24   -31     9   .05    7    6 |     -30   -2116     21     60
        |                      5   -17                       |
jpl  124|    1    -2    -4   -45    34    74   .57   21   19 |    2896   -1273     15    104
        |                     28    -2                       |
mit  263|    0    -1    -1    -9     4     9  -.31   14   11 |  -16464    2005     22    126
        |                     30    38                       |
ngs  223|    2     0     0    50    98    28  -.22   14    8 |   16516   -2333   2370   3910
        |                    -88    19                       |
sio  263|   -5     3     5    -3     5    -7  -.10   22   21 |     ---     ---    ---    ---
        |                    -99   -26                       |

Table 2.1581.4   GPS week: 1581   Day: 4   MJD: 55315.000                            

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  246|    1     0     1    21    -5     0  -.20    9    8 |    -654      91     15     71
        |                     68   -22                       |
emr   94|    0    -1     2    47   -27     2   .42   19   19 |   -2426    -656     21     86
        |                    -60    17                       |
esa  149|   -2    -1     0  -106   -87   -36   .30   10   10 |    -796    2233     17    117
        |                     54    18                       |
gfz  200|    0    -1    -1    27    72    -5  -.10   12   12 |     -38      33     24    109
        |                    -23  -104                       |
grg  128|   -1     1     4   -39    66    10   .68   19   18 |    -387     252     54    254
        |                    136  -122                       |
igr  n/a|    0     0    -2    49   -27    12   .05    6    5 |   -3239   -1492     22     71
        |                    -23   -32                       |
jpl  124|    1     0    -2   -19    57    90   .57   21   20 |     531    -857     21    121
        |                     27    35                       |
mit  263|    0     0    -1    28   -16     9  -.28   12   11 |  -15262     207     22    168
        |                      9    43                       |
ngs  223|    2     2    -2    29    67    12  -.21   14    9 |   15242    -565   2179   3130
        |                     18    -4                       |
sio  263|   -5     3     6    19     7   -36  -.09   21   20 |     ---     ---    ---    ---
        |                    -99   -38                       |

Table 2.1581.5   GPS week: 1581   Day: 5   MJD: 55316.000                            

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  246|    0     0     2    28   -32    -7  -.17    8    8 |    -849     636     19     76
        |                     16     2                       |
emr   94|    0    -1     1    49    -7    31   .48   19   19 |   -4207    1224     20    104
        |                    -71   -19                       |
esa  149|    0     1    -2   -39   -52   -69   .33    9    9 |   -1020   -1236     13    114
        |                     19    -1                       |
gfz  200|   -1    -1     0    18    39     5  -.05   12   12 |      47     133     23    109
        |                    -75   -61                       |
grg  128|    0     1     6   -13     2    14   .65   18   15 |    -857     776     63    221
        |                     64   -60                       |
igr  n/a|    0     0    -1    32   -18    62   .09    6    6 |   -5825     402     19     62
        |                    -36    15                       |
jpl  124|    2     0    -2    -8    60    63   .53   22   21 |   -1511     852     21    138
        |                    -24   -19                       |
mit  263|    1    -1    -2   -51    -5    12  -.24   12   11 |  -15347    -399     22    183
        |                     25    31                       |
ngs  223|    0     0     0    29    65    20  -.22   11    7 |   11399    2251   2139   3600
        |                    -63    52                       |
sio  263|   -4     3     5   -36   -19   -10  -.08   22   20 |     ---     ---    ---    ---
        |                    -95   -15                       |

Table 2.1581.6   GPS week: 1581   Day: 6   MJD: 55317.000                            

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  246|    0     0     3     6   -23    -4  -.21    9    9 |    -138    -462     19     73
        |                     27   -16                       |
emr   94|   -1     1     0    38    22    -5   .41   19   19 |   -2936    1081     23    102
        |                    -73   -49                       |
esa  149|   -1     0    -2   -42   -89   -25   .34    9    8 |      59     823     12     89
        |                    -22    29                       |
gfz  200|    0     0     0    24     1     6  -.05   12   12 |     504    -471     22    114
        |                    -56   -37                       |
grg  128|   -1     0     7   -17    -9    26   .67   19   17 |     167    -502     50    206
        |                     40   -55                       |
igr  n/a|    0     0    -1    36    -6    39   .02    5    5 |   -5422     348     21     69
        |                    -35   -22                       |
jpl  124|    2     1    -2   -23    87     4   .44   21   19 |    -641     839     19    120
        |                    -35   -47                       |
mit  263|    0    -1     0   -33   -23    20  -.29   12   11 |  -14700    -522     23    167
        |                     17    23                       |
ngs  223|    1     0     0    50    93     5  -.22   11    8 |   15303   -4016   2214   3238
        |                    147    43                       |
sio  263|   -4     2     6   -24   -34    -8  -.12   23   20 |     ---     ---    ---    ---
        |                    -85   -47                       |

       
       
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 3.1581.0   GPS week: 1581   Day: 0   MJD: 55311.000                            

        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  ---  ---  ---  ---   25  ---   21   26  ---   15 |    32  ---  ---  ---  ---   33  ---   34   34  ---    29
   2  |    9   24   10    9   23    7   21   12   12   16    5 |    13   25   18   12   27   16   21   16   16   15    13
   3  |    6   14    5    9   14    5    9   12    8   19    3 |    21   28   29   29   34   25   23   27   25   24    25
   4E |   16   19   10    9   16    7   16   13   14   23    5 |    41   48   39   37   48   39   48   32   39   49    39
   5  |    7   21    7    8   17    4   23   12    9   19    4 |    14   29   19   18   29   18   31   19   16   25    17
   6  |    6   14    7   11   13    4   12   12    8   17    3 |    27   32   36   37   39   31   28   31   30   27    31
   7E |    6   21    8   11   22    5   22   13   13   15    5 |    44   49   51   50   55   46   49   49   46   49    47
   8E |   18   23    9   13   27   10   21   23   41   24    8 |    21   28   25   23   31   25   31   21   49   26    21
  X9E |    8   20   10   32   21    4  ---   11   13   12    6 |    28   34   30   40   36   32  ---   35   32   39    30
  10  |    4   15    8    6   19    4   14   11   10   19    4 |     8   16   15   10   17   11   19   10   13   23     9
  11  |    8   19    8   12   25    4   19   14   11   19    4 |    12   20   13   19   30   11   18   19   14   17    11
  12  |   10   25    7    9   22    4   25   15    9   26    5 |    22   34   26   26   31   23   32   31   22   29    24
  13  |    7   18    7   13   21    6   23    9   10   15    4 |    21   28   26   26   37   20   28   24   22   17    20
  14  |    9   21   11   15   29    4   24   15   10   17    5 |    23   34   32   36   37   28   30   28   24   25    26
  15  |   12   22   11   13   19    7   23   15    9   44    6 |    22   29   27   26   34   25   25   27   23   44    22
  16  |   11   23    8   14   21    7   26   20   11   28    6 |    24   32   30   32   35   27   32   30   24   27    26
  17  |    8   21    8   11   13    4   23   11   12   34    5 |    48   53   49   45   50   51   46   46   46   39    46
  18  |   10   24    9   15   18    5   26   14   13   20    5 |    19   34   25   24   30   21   32   22   19   28    21
  19  |    6   20    7   12   19    8   22   14   10   32    5 |     9   24   16   18   21   14   27   17   15   19    13
  20  |   10   23    8   11   19    6   21   19   11   21    5 |    17   31   18   22   24   18   28   25   18   23    17
  21E |    8   16    8   11   25    6   18   17   13   20    5 |    35   35   34   31   44   32   34   33   32   32    31
  22  |    8   24    8   14   22    5   23   15    9   15    5 |    16   34   26   25   36   21   28   22   20   22    20
  23  |    7   20    8   17   20    4   26   12    9   22    5 |    18   26   22   28   30   18   26   22   20   19    17
  24E |   17   25   10   18   23    5   18   22   24   26    7 |   140  138  139  140  141  138  139  137  140  144   138
  26  |    7   13    5   10   13    4   11   13   11   19    4 |    21   24   21   24   27   21   21   22   24   19    20
  27E |    9   17   12   23   21    6   17   14   25   16    6 |    63   48   63   57   62   59   63   65   61   63    60
  28  |    7   28   11   12   19    5   27   14    8   23    5 |    28   41   36   33   38   34   40   31   28   30    29
 X29  |    7   14    9    8   16    4   20   11   12  ---    4 |    16   23   16   16   20   16   27   20   18  ---    14
  30  |    7   12    7   10   21    2   14   10    9   22    4 |    31   27   33   36   34   29   22   29   32   25    29
  31E |    7   18    8   11   25    6   25   15    8   17    5 |    66   78   70   71   77   70   76   73   69   75    70
  32  |    8   16    7   10   18    5   17   10   13   17    4 |    12   16   12   14   18   12   19   15   17   17    10
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   20    8   12   21    6   21   14   14   22      |T   29   36   33   33   39   31   35   32   31   34    29
 WRMS |    8   20    8   12   19    5   20   13    9   24      |NE  20   29   24   25   30   22   27   24   22   24    21
 MEDI |    8   20    8   11   20    5   21   14   11   19      |MD  22   31   26   26   34   25   28   27   24   26    24

Table 3.1581.1   GPS week: 1581   Day: 1   MJD: 55312.000                            

        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  |   25  ---  ---  ---  ---   34  ---   19   38  ---   20 |    24  ---  ---  ---  ---   34  ---   28   40  ---    23
   2  |    8   21    9    7   20    7   22    9   12   15    4 |    12   25   19   16   26   16   26   18   23   18    16
   3  |    4   13    9   16   15    5   15   11    8   19    4 |    15   21   22   21   23   17   20   20   15   21    17
   4  |    9   20   10   11   18    4   13   10   15   22    5 |    29   39   37   31   41   32   40   33   30   47    33
   5  |    8   23    6   10   20    4   24   10   14   15    5 |    14   31   20   17   29   16   31   17   19   19    16
   6  |    4   12    9   10   13    6   17   10    8   16    4 |    17   22   23   21   23   19   25   20   19   19    19
   7E |    5   21    8   13   15    6   22   15   11   13    4 |    57   57   56   53   58   56   55   58   59   57    56
   8E |   17   21   12   19   23    8   23   23   40   22    8 |    18   24   19   22   29   19   29   21   45   23    16
   9E |   12   17   12   17   18    5   18   13   13   12    5 |    18   24   23   22   26   20   24   28   23   27    19
  10  |    5   16    6    7   17    4   14    9   13   19    4 |    10   18   15   10   16   12   18   12   15   26    10
  11  |    7   31    9    6   27    6   19   12   11   16    5 |    14   40   16   17   28   15   23   21   17   22    16
  12  |   11   26    8    8   23    5   23   17   11   26    5 |    14   30   24   19   26   19   30   26   19   25    19
  13  |    5   19    9    8   28    5   26   11    8   17    4 |    15   27   18   15   36   16   29   18   19   16    14
  14  |   10   23   10   16   26    5   26   12    9   15    5 |    18   31   32   27   35   26   32   25   19   27    23
  15  |    8   23   10   11   21    7   25   14   13   40    6 |    17   26   20   19   28   16   26   20   16   39    15
  16  |    9   23    7   11   22    5   26   13   10   23    5 |    17   30   22   20   26   19   31   20   22   17    19
  17  |   11   20   12    9   15    5   19    7   10   34    5 |    40   42   46   45   43   40   38   48   39   55    43
  18  |    8   28    8   13   19    5   27   13   10   18    5 |    17   33   22   17   24   17   27   18   15   26    17
  19  |    6   20   11   12   13    7   22   12   10   30    5 |    14   24   19   15   20   13   26   18   12   17    15
  20  |    9   19   12    8   17    5   24   18    9   23    5 |    13   25   22   19   20   16   28   22   14   20    15
  21  |    8   21    8    7   18    5   19   10   11   16    4 |    38   44   37   36   40   38   42   36   36   39    37
  22  |    7   21    7   12   21    4   23   14   11   14    5 |    16   29   25   20   29   18   26   19   15   21    17
  23  |    5   19    9    9   20    5   27   11    9   22    5 |    13   24   17   16   25   15   29   16   14   17    12
  24E |   16   27    8   20   21   11   20   19   16   23    6 |   109  114  103  104  104  109  109  101  105  104   105
  26  |    8   14    9    6   15    5   10   13   10   18    4 |    14   18   16   15   21   13   17   16   13   21    13
  27E |   11   16   12   11   17    6   18   13   21   14    5 |    75   59   78   75   76   75   80   77   73   79    75
  28  |    9   23   13   11   14    8   27   12   10   22    5 |    16   33   23   21   28   18   30   19   20   19    17
 X29  |    5   16    7    9   19    5   19   12   11  ---    4 |    12   22   13   11   16   13   21   18   17  ---    12
  30  |    8   13    9    9   22    3   12   12   11   17    4 |    20   18   23   20   27   19   21   21   21   19    18
  31E |    4   16    7   10   18    3   23   17    9   15    4 |    75   82   76   75   80   76   80   78   75   78    76
  32  |    6   15    8    9   16    5   15   10   10   19    4 |    14   18   19   18   16   16   21   16   14   20    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   21    9   11   19    6   21   13   13   21      |T   25   34   30   27   33   27   34   29   28   32    26
 WRMS |    8   21    9   11   18    5   21   12   10   22      |NE  16   26   21   19   25   18   26   20   19   23    17
 MEDI |    8   20    9   10   18    5   22   12   11   18      |MD  17   27   22   20   27   18   28   20   19   22    17

Table 3.1581.2   GPS week: 1581   Day: 2   MJD: 55313.000                            

        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  |   22  ---  ---  ---  ---   28  ---   24   30  ---   18 |    31  ---  ---  ---  ---   31  ---   29   34  ---    27
   2  |    6   21   12    7   20    6   23   12    9   19    4 |    12   26   16   10   29   14   26   14   15   15    13
   3  |    5   14    7   10   18    5   14   11    7   22    4 |    20   29   29   27   34   22   24   24   23   18    24
   4  |    8   21   10   10   14    5   12   11   13   24    4 |    19   35   22   23   24   18   28   17   21   34    19
   5  |    7   21    8    8   19    5   22   11   10   19    4 |    14   28   20   15   30   19   30   20   18   21    17
   6  |    4   14    8   10   17    5   17    9    9   19    4 |    24   30   34   31   35   27   26   27   28   19    28
   7E |    7   21   13   10   22    8   23   18    9   18    5 |    38   46   42   43   51   42   46   43   48   48    42
   8E |   16   24   11   15   25    7   22   23   37   24    8 |    18   25   22   23   33   23   29   19   45   23    20
   9E |   14   21   14   12   20    5   20   16   11   15    5 |    19   23   24   22   24   18   19   26   20   23    19
  10  |    5   13    4    7   17    6   15   12    9   17    3 |     8   14   13   15   17   10   20   11   10   21     9
  11  |    5   16    5    8   23    9   16   14    6   15    3 |    11   20   14   14   29   13   21   21   13   17    13
  12  |   11   26   12    9   16    7   23   18   13   25    6 |    19   32   26   22   27   20   30   28   21   25    21
  13  |    6   20   11   10   27    6   26   10    9   20    5 |    17   27   23   21   39   16   30   21   17   16    17
  14  |    9   21    9   15   33    7   25   13    8   18    5 |    21   30   30   34   34   22   29   23   19   23    23
  15  |   11   21   13    9   18    5   21   11    9   41    6 |    16   27   24   17   29   18   26   21   19   38    18
  16  |    7   22   10   10   17    7   27   14   11   23    5 |    24   30   24   23   30   23   32   25   20   16    23
 X17  |    6   21   13    8   16    9  ---   25   10  ---    6 |    58   55   55   58   51   57  ---   61   57  ---    56
  18  |    7   26    9   13   16    6   29   13    9   19    5 |    18   31   21   21   27   18   29   20   19   27    19
  19  |    6   19    5   10   16    6   22   11    8   30    4 |    11   24   17   16   19   14   24   14   15   13    13
  20  |   10   23    9   12   19    7   21   16    9   21    5 |    13   29   20   22   23   15   25   22   19   20    16
  21  |    7   23    8   10   21    4   18    9    8   20    4 |    20   30   20   22   30   22   22   21   19   27    19
  22  |    7   17   10   10   19    8   24   12    9   15    4 |    16   26   23   22   30   17   26   20   15   22    17
  23  |    7   26    9   12   18    6   28   11   10   22    5 |    15   31   17   20   25   13   30   18   17   18    14
  24E |   13   21    8   14   22   10   20   19   13   27    6 |    94   97   91   98   90   95   94   89   93   91    92
  26  |    6   15    4    7   13    4   11   13    5   17    3 |    18   21   20   21   20   16   20   16   18   19    18
  27E |   12   21   13   12   16   12   17   16   24   13    6 |    58   56   62   61   62   58   60   63   63   61    59
  28  |    8   22    9   11   17    7   23   16   11   24    5 |    18   33   23   25   28   21   30   22   22   22    20
 X29  |    6   15    9   10   17    5   19   13   13  ---    4 |    15   21   13   16   16   13   24   18   16  ---    14
  30  |    7   13    7    6   17    4   12   11    8   15    3 |    24   20   27   26   28   23   18   26   26   25    24
  31E |    6   15    9    8   19    8   24   20    7   14    4 |    52   53   55   47   61   51   55   45   50   49    50
  32  |    7   23    7    8   15    6   16   13    9   19    4 |    11   23   15   15   15   13   22   16   18   17    13
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   20    9   10   19    7   21   14   12   21      |T   24   32   28   27   33   25   30   27   27   27    25
 WRMS |    7   20    9   10   18    6   20   13    8   22      |NE  18   27   22   22   27   19   25   22   20   20    19
 MEDI |    7   21    9   10   18    6   21   13    9   19      |MD  18   29   23   22   29   19   26   21   19   22    19

Table 3.1581.3   GPS week: 1581   Day: 3   MJD: 55314.000                            

        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  |   22  ---  ---  ---  ---   17  ---   30   16  ---   16 |    32  ---  ---  ---  ---   22  ---   36   26  ---    26
   2  |    8   20   10   13   21    6   20    9    9   18    4 |    10   25   18   18   28   14   22   15   17   18    13
   3  |    7   14    8   15   15    5   13    8    9   20    4 |    24   29   31   35   33   24   25   25   23   18    25
   4  |    7   15    8   15   14    4   13    8   11   23    4 |    18   26   20   24   28   20   28   15   19   35    19
   5  |    7   21    9   13   20    4   22    9   11   14    4 |    15   31   20   20   32   18   31   19   18   23    17
   6  |    5   13    9   14   14    5   15    7    7   16    4 |    29   31   36   37   37   28   27   30   27   21    30
   7E |   11   18   12   11   27   10   24   23   13   27    6 |    80   82   83   82   84   82   82   84   79   86    80
   8E |   18   23   11   17   31   12   21   19   44   21    8 |    18   23   21   16   35   21   27   19   49   21    16
   9E |   14   17   12   18   19    6   20   15   13   15    5 |    17   23   21   21   24   16   22   30   25   23    17
  10  |    5   14    8   11   21    5   11    9   12   14    3 |    11   18   17   20   20   14   19   12   11   21    11
  11  |    7   16    9   11   22    6   16    8   11   18    4 |    13   28   15   17   28   13   24   18   16   21    14
  12  |   11   25    9   15   18    6   25   16   13   25    6 |    16   31   20   27   28   19   30   26   22   27    19
  13  |    6   19   11   14   22    7   24   11   15   21    5 |    20   28   25   24   38   18   31   21   17   17    18
  14  |    8   20   11   14   35    5   27   12   10   18    5 |    22   32   31   33   41   25   32   26   19   26    24
  15  |   11   19   10   11   23    7   22   11   14   40    6 |    18   27   20   20   33   18   28   21   22   43    18
  16  |    8   21   10   14   24    7   28   14    8   22    5 |    23   32   29   29   34   22   32   25   22   18    23
  17  |   10   15    8   15   11    6   17   13   21   36    6 |    27   25   19   24   22   22   30   26   29   38    22
  18  |   10   25   10   16   16    5   27   10    7   18    5 |    18   32   20   22   25   18   30   19   18   24    18
  19  |    8   19    8   15   16    8   22    8    9   31    5 |    13   26   18   19   21   14   28   15   16   17    14
  20  |    8   20   11   13   18    7   23   11    9   18    5 |    16   29   21   26   23   19   29   20   19   22    18
  21  |    6   18    8    9   19    4   15    6    9   14    4 |    25   26   21   20   28   18   24   24   19   26    21
  22  |    7   24   10   14   20    6   24   11    8   14    5 |    16   32   21   23   31   18   27   19   14   22    17
  23  |    5   21   10   16   18    6   27   10   14   24    5 |    19   28   24   28   27   17   30   21   14   19    18
  24  |   14   21    6   11   19    8   16   16   11   26    5 |    86   81   80   80   88   81   82   83   80   81    81
  26  |    6   11    7   11   15    4   12   10    8   19    3 |    19   18   18   20   25   15   21   18   17   22    16
  27E |   13   15   12   17   22    7   18   18   25   17    6 |    93   79   94   95   91   91   96   97   89   97    93
  28  |    6   24   10   15   17    6   23   13   11   24    5 |    21   33   25   25   31   21   30   24   24   22    21
 X29  |    7   15    6   11   14    6   20   11    9  ---    4 |    17   23   17   14   21   15   27   20   17  ---    16
  30  |    6   13    9   14   16    4   15   11    8   14    4 |    31   23   27   33   31   24   21   30   27   25    26
  31E |   10   18   14   11   18    9   27   38   14   26    7 |    84   84   84   87   87   82   83   94   81   96    84
  32  |    7   16    9   14   16    7   17   14   12   18    4 |    16   22   23   25   17   19   23   21   19   21    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19   10   14   20    7   21   14   14   22      |T   27   34   30   32   36   27   34   30   28   32    27
 WRMS |    8   19    9   14   18    6   19   11    8   21      |NE  19   27   22   24   28   19   27   22   19   23    19
 MEDI |    8   18    9   14   18    6   20   11   11   19      |MD  19   28   21   24   28   19   28   21   19   22    18

Table 3.1581.4   GPS week: 1581   Day: 4   MJD: 55315.000                            

        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  |   17  ---  ---  ---  ---   15  ---   23   14  ---   13 |    24  ---  ---  ---  ---   28  ---   32   26  ---    25
   2  |    8   19    8   10   19    6   22    8    9   18    4 |    13   26   17   13   28   17   25   16   22   19    15
   3  |    7   11    8   11   16    5   12    8   12   21    4 |    19   26   28   26   28   22   22   21   23   17    21
   4  |   10   17    9   17   12    6   13    9   15   24    5 |    21   31   23   24   25   23   28   17   26   37    21
   5  |    5   20    8   11   20    4   23    6   10   14    4 |    18   33   23   19   31   21   32   17   18   23    19
   6  |    7   12    9   11   14    5   15    8   10   17    4 |    24   30   33   30   30   26   24   26   25   20    26
   7E |    8   13    9    9   20    8   24   14   14   17    5 |    50   51   51   49   56   48   51   49   41   54    48
   8E |   18   22   13   19   24    7   20   18   39   18    8 |    17   26   24   16   32   18   28   20   47   20    17
   9E |   15   18   12   10   21    3   20   15   17   17    5 |    18   23   24   20   24   19   22   28   22   29    19
  10  |    6   17    6    9   14    5   12   11   10   10    3 |    11   19   16   11   17   13   16   14   12   16    10
 X11  |   11   18   10   10   22    7  ---    9   10  ---    5 |    15   26   17   19   25   15  ---   18   16  ---    15
  12  |    9   24   11   11   21    7   26   14   13   25    6 |    20   31   24   25   27   24   29   26   26   26    22
  13  |    8   19   11   13   23    5   23    9   13   21    5 |    18   30   27   24   36   20   29   20   14   16    18
  14  |    8   20   15   15   35    4   26   14   13   19    5 |    18   29   29   27   43   22   30   23   19   25    21
  15  |    9   19    9    8   20    7   25   10   12   39    6 |    17   26   19   21   29   17   27   19   22   41    17
  16  |    8   26    9   13   20    5   25   18    8   23    6 |    22   31   26   23   32   22   31   26   21   22    22
  17  |   10   19   14    9   12    9   18   15    9   36    6 |    26   29   27   28   20   28   24   27   30   37    26
  18  |    9   25   12   13   17    5   29   11    8   16    5 |    16   33   22   21   26   18   33   18   19   22    19
  19  |    9   17   11   12   12    5   20    9   11   31    5 |    12   23   19   19   17   13   25   11    8   16    12
  20  |    9   24    8    9   23    7   21   11   12   15    5 |    15   29   25   20   24   20   25   21   23   24    19
  21  |    6   16    9    8   18    3   17    6    8   14    3 |    19   25   19   18   25   16   24   20   20   22    18
  22  |    7   21   11   14   15    4   24   11   11   12    5 |    17   29   23   24   30   18   27   17   16   21    18
  23  |    7   21    8   12   26    6   25   10   13   23    5 |    21   29   27   24   30   23   29   22   14   23    19
  24  |   11   20    9   13   21    5   16   16   12   19    5 |    51   58   55   53   55   50   56   52   57   56    53
  26  |    7   11    6    6   13    4   14   11    8   20    3 |    15   18   16   17   23   15   20   15   19   25    14
  27E |   14   18   13   14   14    5   20   14   28   15    6 |    43   65   42   52   50   48   47   51   52   44    44
  28  |    8   20   11   11   13    7   24   10   11   26    5 |    20   31   28   23   31   19   30   21   20   21    20
 X29  |    6   15    7   12   14    5   21   12    9  ---    4 |    18   20   12   16   19   14   25   20   15  ---    14
  30  |    6   13    6   11   16    3   17    8   10   16    3 |    30   28   31   33   30   28   29   27   28   32    28
  31E |    9   21    8   10   24    6   27   21   10   17    5 |    40   47   45   45   55   44   45   50   44   52    44
  32  |    6   21    6   10   17    6   17   13   14   20    4 |    16   22   23   20   19   19   20   20   25   21    18
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19   10   12   19    6   21   12   14   21      |T   22   30   26   25   30   23   29   24   24   27    22
 WRMS |    8   19   10   12   18    5   20   11    9   20      |NE  18   27   23   21   27   20   26   20   20   23    19
 MEDI |    8   19    9   11   18    5   21   11   11   18      |MD  18   29   24   23   28   20   28   21   22   23    19

Table 3.1581.5   GPS week: 1581   Day: 5   MJD: 55316.000                            

        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  ---  ---  ---  ---   25  ---   24   16  ---   14 |    32  ---  ---  ---  ---   42  ---   29   43  ---    31
   2  |    7   24    8    9   16    4   22    6    8   20    4 |    12   29   18   13   27   14   22   15   19   19    14
   3  |    5   12    9   12   13    5   15    6   10   18    3 |    20   26   27   24   28   21   24   19   17   17    20
   4  |    8   16   11   12   13    6   14    9    9   24    4 |    18   32   24   24   25   21   31   18   22   38    21
   5  |    7   18    7   11   23    3   23   11   10   12    4 |    14   28   18   17   33   15   28   16   17   18    15
   6  |    6   10   10    9   11    6   18    8    9   13    3 |    23   29   31   26   30   24   26   23   18   19    23
   7E |    7   13    7    6   14    7   24   11    8   13    4 |    66   68   64   66   70   66   69   70   68   70    67
   8E |   16   22   10   26   16   10   22   19   31   19    8 |    24   26   26   22   30   24   28   20   37   25    20
   9E |   12   19    9   12   20    6   20   19   14   16    5 |    16   22   18   21   19   15   18   30   20   23    16
  10  |    5   14    8   10   15    5   15   15   10   15    4 |    14   19   20   17   20   14   20   13   14   13    12
 X11  |    7   16    9   10   21    5  ---    6    6   18    4 |    19   28   25   20   30   20  ---   17   19   24    19
  12  |    9   25   10   12   16    5   26   13   10   26    5 |    15   29   19   19   25   16   27   22   18   22    16
  13  |    7   16    6   11   22    4   27    9    6   24    4 |    23   29   22   22   31   21   30   20   19   20    19
  14  |   10   20    8   11   31    6   24   12    9   19    5 |    17   33   26   24   37   22   31   20   21   23    20
  15  |    8   21   15    9   22    6   25    8   10   39    6 |    18   27   24   18   30   17   26   18   19   40    17
  16  |    8   22    7   11   16    6   29   15    6   24    5 |    20   30   21   19   26   20   30   21   17   16    18
  17  |    8   16    7   10   11    7   20   11    8   39    5 |    19   22   19   21   14   19   24   22   25   43    20
  18  |    9   25   10   15   17    7   29    8    6   16    5 |    15   32   20   18   25   17   30   17   18   20    16
  19  |    8   17    9    9   12    6   22    8    9   30    5 |    14   25   20   15   19   15   28   14   15   13    14
  20  |   11   22   13   12   20    7   21   13   10   16    5 |    17   30   26   26   24   22   27   18   22   25    20
  21  |    5   15   11   11   20    5   18    7    8   16    4 |    18   23   23   17   24   17   24   18   18   24    18
  22  |    7   19    9   10   21    7   26    9    8   11    4 |    15   29   21   16   30   19   28   18   20   20    17
  23  |    6   18    8   11   24    5   26   10    7   25    4 |    23   30   24   22   27   21   29   20   17   22    20
  24  |   10   22    9   14   16    6   16   15   10   19    5 |    31   37   29   30   30   31   35   29   34   30    29
  26  |    6   11    6    8   13    5   13   11    6   19    3 |    14   14   14   14   19   11   17   14   10   21    11
 X27E |   10  ---    9   12   23    6   20   15   19   17    5 |    80  ---   83   77   80   82   84   84   85   83    81
  28  |    9   20   12   11   17    6   27   10   10   24    5 |    19   28   25   22   29   21   28   19   21   22    19
 X29  |    7   14   11    8   13    7   19    9    8  ---    4 |    14   18   16   14   16   13   23   14   18  ---    13
  30  |    8   13   10    9   16    4   17    6    8   15    3 |    27   29   27   28   27   25   24   24   24   26    24
  31E |    6   17   10    9   22    3   25   16   12   18    5 |    78   82   79   79   81   79   80   80   78   80    78
  32  |    6   21    6   12   20    5   18   14   11   20    4 |    18   21   19   16   17   15   21   19   15   23    15
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   19    9   12   18    6   22   12   11   22      |T   24   30   27   25   30   25   31   25   26   28    23
 WRMS |    8   19    9   12   15    6   21   11    7   20      |NE  18   26   21   19   25   19   25   18   19   22    17
 MEDI |    8   18    9   11   16    6   22   11    9   19      |MD  18   29   23   21   27   20   28   19   19   23    19

Table 3.1581.6   GPS week: 1581   Day: 6   MJD: 55317.000                            

        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  |   25  ---  ---  ---  ---   27  ---   29   26  ---   19 |    41  ---  ---  ---  ---   38  ---   39   33  ---    34
   2  |    8   21   10   10   19    4   20    7   12   20    4 |    16   28   21   20   34   20   27   21   30   19    20
   3  |    6   10    5   11   16    6    9    7   10   17    3 |    23   28   26   32   35   25   27   24   30   24    25
   4  |    9   20   10   13   17    4   13    7    9   26    4 |    22   29   27   24   29   23   33   19   22   41    23
   5  |    8   23    9   10   20    3   26   15   10   15    5 |    17   35   22   16   34   20   35   24   22   26    20
   6  |    8   11    5   11   14    6   10    8    9   14    3 |    28   30   34   38   38   30   30   30   33   28    30
   7E |    7   16    9    9   34    5   24   13   10   15    4 |    64   67   64   65   65   67   67   66   71   65    65
   8E |   18   23   12   25   20   11   21   22   27   21    8 |    22   29   24   23   34   25   32   23   44   22    21
   9E |   15   20    9   13   17    4   22   19   13   23    6 |    15   21   19   23   18   15   21   30   22   20    16
  10  |    7   15    9   11   18    5   11   15   11   21    4 |    12   17   15   10   16    9   18   14   13   14     9
  11  |    7   15    8    9   24    4   15    6    8   19    3 |    15   24   17   17   33   14   20   15   20   22    14
  12  |   11   24    8   12   17    5   25   12   10   27    5 |    24   37   27   28   34   26   37   30   31   30    26
  13  |    7   18    9   10   28    6   26    9    6   25    5 |    21   28   25   25   43   19   30   22   21   18    19
  14  |   10   24    7   18   27    7   27   10    9   19    5 |    24   31   31   37   39   26   30   26   27   27    26
  15  |   13   21   11    9   21    4   26   11   12   39    6 |    20   27   23   22   32   18   26   20   24   41    19
  16  |    9   24    9   10   20    5   26   14    8   29    5 |    21   32   30   25   34   23   33   27   26   22    23
  17  |    9   17    5    9   15    5   14   10   11   43    5 |    24   26   23   23   21   23   25   27   25   45    23
  18  |   10   25    9   15   15    5   27    9    9   18    5 |    19   35   24   21   24   20   33   19   25   22    20
  19  |    6   18    8   14   16    6   21    9    9   31    5 |    16   27   19   23   25   17   31   16   23   22    17
  20  |    8   17    9   11   16    5   19   13    8   15    4 |    14   23   20   18   24   14   22   17   18   20    15
  21  |    6   20    8    8   21    5   15    7    8   16    4 |    18   28   18   18   28   18   23   17   22   23    17
  22  |    8   21    9   14   19    5   26    9   11   14    5 |    16   29   24   23   31   18   29   19   25   21    18
  23  |    6   18    8   10   18    6   26   10    6   26    4 |    19   28   24   23   30   19   28   19   20   18    18
  24  |   11   21   10   11   13    5   13   14   10   20    5 |    57   62   57   56   57   57   60   54   58   57    56
  26  |    9   10    8    8   13    3   11   10   11   23    4 |    20   19   18   21   24   18   21   18   23   26    17
  27E |   13   16    9   14   15    3   18   12   16   19    5 |    82   88   85   81   84   79   84   80   78   79    81
  28  |    8   20   10   13   17    7   21    9    8   25    5 |    19   30   24   27   33   22   30   22   25   25    21
 X29  |   13   14   10    9   17    4   21   10   12  ---    5 |    20   25   19   17   18   16   31   20   22  ---    17
  30  |    9   12    7   11   17    4   14    7   11   16    4 |    34   27   32   35   34   28   24   32   39   24    31
  31E |    7   22    8   11   17    4   26   13    8   19    5 |    69   67   68   68   69   68   67   67   75   68    68
  32  |    9   16    7    9   18    4   18   15    6   24    4 |    12   19   19   19   18   14   22   17   20   23    14
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    9   12   19    5   21   12   11   23      |T   26   33   29   29   34   26   33   28   31   30    26
 WRMS |    9   19    8   12   17    5   19   11    8   20      |NE  20   27   23   23   29   20   27   22   25   24    20
 MEDI |    9   18    9   11   17    5   21   10   10   20      |MD  20   28   24   23   33   20   30   22   25   24    20



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components.  See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.1581   GPS week: 1581   MJD: 55311.0-55317.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2957 |U    7     8    24 |U    9    12    35 |U    7     7    18 |
emr | emr 2851 |     9    10    32 |U   10    16    39 |    10     9    23 |
esa | esa 2879 |     8     8    26 |U    8    12    34 |     8     7    19 |
gfz | gfz 2863 |U    7     8    25 |U    8    12    33 |U    7     7    19 |
grg | grg 2880 |     8     9    25 |U    8    11    36 |     9     9    23 |
igr | igr 2871 |     8     8    26 |     8    14    32 |     8     7    19 |
igs | igs 2843 |     7     8    25 |     8    13    35 |     8     7    20 |
jpl | jpl 2807 |U    8    10    28 |     9    14    34 |U    9     9    21 |
mit | mit 2976 |U    9     8    26 |U   17    18    42 |U    9     8    22 |



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 5.1581.0   GPS week: 1581   Day: 0   MJD: 55311.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2942 |     7    10    23 |     7     7    23 |     7     9    13 |
emr | emr 2864 |     9    13    37 |     7     8    26 |    10     9    14 |
esa | esa 2880 |     7    10    28 |     6     9    23 |     7     8    12 |
gfz | gfz 2862 |     7     9    28 |     6     8    27 |     7     6    14 |
grg | grg 2880 |     8    11    27 |     5     9    29 |     8     9    19 |
igr | igr 2860 |     8    11    32 |     5     9    21 |     6     7    13 |
igs | igs 2760 |     7    10    24 |     5     9    23 |     7     7    13 |
jpl | jpl 2771 |     9    13    28 |     7    10    23 |     9     8    14 |
mit | mit 2976 |     7     9    26 |     8     9    25 |     9     8    22 |

Table 5.1581.1   GPS week: 1581   Day: 1   MJD: 55312.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2945 |     8     6    24 |    14    17    81 |     7     6    17 |
emr | emr 2864 |     9     8    38 |    14    21    76 |     7     5    18 |
esa | esa 2880 |     8     5    30 |    16    18    82 |     7     6    16 |
gfz | gfz 2864 |     8     5    26 |    14    17    71 |     7     4    16 |
grg | grg 2880 |    10     8    27 |    12    15    68 |     8     7    20 |
igr | igr 2866 |     8     6    32 |    13    16    70 |     7     4    16 |
igs | igs 2776 |     8     6    28 |    14    18    79 |     7     5    17 |
jpl | jpl 2854 |     8     7    36 |    13    18    67 |     8     7    20 |
mit | mit 2976 |     8     6    31 |    13    15    64 |     8     6    19 |

Table 5.1581.2   GPS week: 1581   Day: 2   MJD: 55313.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2964 |     7    11    25 |     8    11    28 |     8     8    21 |
emr | emr 2861 |     8    11    27 |     6     9    25 |    11    11    34 |
esa | esa 2880 |     7     9    24 |     7     7    22 |     8     8    23 |
gfz | gfz 2857 |     7     9    24 |     7     8    25 |     8     7    21 |
grg | grg 2880 |     7    10    22 |     6     9    31 |    10     8    26 |
igr | igr 2900 |     7    10    23 |     6    10    28 |     8     7    23 |
igs | igs 2866 |     7    10    24 |     7     8    34 |     9     9    23 |
jpl | jpl 2768 |     7    14    27 |     8    12    30 |     9     9    30 |
mit | mit 2976 |     7     8    24 |     7     9    27 |    11    11    31 |

Table 5.1581.3   GPS week: 1581   Day: 3   MJD: 55314.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2972 |     7     7    20 |     6     8    27 |     9    10    23 |
emr | emr 2868 |    10     8    26 |    13    21    53 |    10    10    25 |
esa | esa 2880 |     8     8    22 |     6     9    25 |     9     8    21 |
gfz | gfz 2863 |     7     8    22 |     6     9    23 |     9     6    19 |
grg | grg 2880 |     8     8    21 |     6     6    26 |     9     9    22 |
igr | igr 2876 |     8     9    21 |     5    10    23 |    10     9    19 |
igs | igs 2846 |     8     7    21 |     6    10    24 |     9     8    21 |
jpl | jpl 2860 |     7     8    24 |     7    12    26 |    10     9    22 |
mit | mit 2976 |     8     7    19 |    11    23    40 |    11     8    18 |

Table 5.1581.4   GPS week: 1581   Day: 4   MJD: 55315.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2963 |     8     9    32 |  ----  ----  ---- |     6     4    18 |
emr | emr 2860 |    11     7    39 |  ----  ----  ---- |    11     8    31 |
esa | esa 2876 |     9     8    32 |  ----  ----  ---- |     8     7    27 |
gfz | gfz 2860 |     9     9    32 |  ----  ----  ---- |     8     7    23 |
grg | grg 2880 |     9     8    31 |  ----  ----  ---- |    12    11    31 |
igr | igr 2916 |     9     9    31 |  ----  ----  ---- |     9     8    28 |
igs | igs 2843 |     9     8    32 |  ----  ----  ---- |     9     8    31 |
jpl | jpl 2767 |     9     8    35 |  ----  ----  ---- |    10     8    28 |
mit | mit 2976 |    20    11    36 |  ----  ----  ---- |     8     4    18 |

Table 5.1581.5   GPS week: 1581   Day: 5   MJD: 55316.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2957 |     7    10    21 |     8    22    24 |     7     8    16 |
emr | emr 2776 |    10    14    30 |    10    24    30 |    11    12    18 |
esa | esa 2880 |     7     9    22 |     8    20    25 |     7    10    18 |
gfz | gfz 2868 |     7    10    23 |     8    20    24 |     6     9    15 |
grg | grg 2880 |     6    10    23 |     8    18    33 |     7    11    21 |
igr | igr 2869 |     7    10    21 |     8    26    27 |     8     9    18 |
igs | igs 2895 |     7    10    22 |     8    23    25 |     6     9    14 |
jpl | jpl 2766 |     9    14    23 |    12    24    31 |    10    13    19 |
mit | mit 2976 |     7     9    22 |     8    23    26 |     6     8    17 |

Table 5.1581.6   GPS week: 1581   Day: 6   MJD: 55317.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2961 |     7     7    22 |     9     8    29 |     7     8    19 |
emr | emr 2867 |     9    10    30 |     9    12    24 |    10     8    19 |
esa | esa 2880 |     7     7    22 |     8     7    27 |     7     6    18 |
gfz | gfz 2867 |     7     7    21 |     8     8    26 |     7     9    23 |
grg | grg 2880 |     8     7    22 |     8     9    30 |     9     8    20 |
igr | igr 2816 |     7     7    20 |     8    10    22 |     8     8    20 |
igs | igs 2916 |     7     7    22 |     8     8    25 |     7     6    20 |
jpl | jpl 2865 |     8     8    23 |     9    10    26 |     8     7    17 |
mit | mit 2976 |     7     7    21 |    54    29    72 |    12    11    29 |


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 6.1581   GPS week: 1581   MJD: 55311.500-55317.500

                                                         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 |       1     -33      -2      -5     -2 |       4     13
            |      17      19     103      50      6 |       1
emr   uuuuu |      16      26      53     263      3 |      57     59
            |      34      36     128     106      4 |       2
esa   uuuuu |     -32     -22     -16     -15      2 |      14     21
            |      22      27      75      74      3 |       1
gfz   uuuuu |      54      45     -29     -31     -1 |      14     20
            |      31      20      63      56      6 |       2
grg   xxxxx |      54     -99     235      79     -6 |       6     10
            |      53      34     179     149     20 |       1
igr   xxxxx |      19      19     -31      81      7 |      -5     15
            |      21      25      53      32      8 |       3
irf   xxxxx |      -7      -8      44     -44      3 |       0     15
            |      14      15      28      57      4 |       1
jpl   uuuuu |      27     -16      11      72     -4 |      21     31
            |      40      29      50     125     17 |       2
mit   uuuuu |     -43     -23     189    -127      3 |      11     19
            |      22      26      54     109      7 |       1
ngs   uuuuu |      -3     -34    -165     -37     -1 |      -3     12
            |      47      71     113     103      4 |       1
sio   uuxuu |      32      82    -421      36      6 |      59     61
            |      16      17      71      81      4 |       3


Table 7.1581.0   GPS week: 1581   Day: 0   MJD: 55311.500

                                                         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 |     -23     -20     151      44      6 |       4     12
emr   uuuuu |      51      40     175     487      6 |      56     58
esa   uuuuu |     -30     -29      54    -147      4 |      14     20
gfz   uuuuu |      11      50     -21    -130     -4 |      17     22
grg   xxxxx |     -37    -132     610     -97     34 |       5      7
igr   xxxxx |      42      45       8      59      1 |      -6     12
irf   xxxxx |      -8       3      51     -67     -1 |       2     14
jpl   uuuuu |      37     -40       2     205    -22 |      22     30
mit   uuuuu |     -39       0     146    -202     -4 |      13     19
ngs   uuuuu |       1     -42    -293     100      4 |      -2     11
sio   uuxuu |      47      91    -351      68     12 |      55     57

Table 7.1581.1   GPS week: 1581   Day: 1   MJD: 55312.500

                                                         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     -24    -156     -64      1 |       2     11
emr   uuuuu |      44     -12     172     257      5 |      54     56
esa   uuuuu |     -59     -12      85     -50      6 |      11     18
gfz   uuuuu |      39      59     -90     -50      2 |      13     19
grg   xxxxx |       9    -109     323     -62     -8 |       6      9
igr   xxxxx |      38      36      26      57     17 |     -10     13
irf   xxxxx |     -15       7       5     -94      3 |      -1     14
jpl   uuuuu |      91     -15      68     192    -16 |      18     29
mit   uuuuu |     -45       7     112    -229      1 |      10     18
ngs   uuuuu |     -14     -94    -270     104     -1 |      -4     12
sio   uuxuu |      39     101    -404     -35      9 |      55     56

Table 7.1581.2   GPS week: 1581   Day: 2   MJD: 55313.500

                                                         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 |      -4     -11     -65     -60    -11 |       5     13
emr   uuuuu |     -27     -10     181     182      1 |      58     60
esa   uuuuu |     -61     -16      14      39      1 |      15     22
gfz   uuuuu |      41      66    -126      51     -1 |      15     22
grg   xxxxx |     103    -105     173     332     -5 |       6     10
igr   xxxxx |      -8      14    -139      30     20 |      -6     15
irf   xxxxx |     -35     -15      72    -136     -3 |       1     16
jpl   uuuuu |      20     -11      88     195     -2 |      20     30
mit   uuuuu |     -88     -39     250    -281     -7 |      12     20
ngs   uuuuu |      94     -37    -200     -41      3 |      -3     13
sio   uuxuu |       4      58    -450     -86      0 |      59     61

Table 7.1581.3   GPS week: 1581   Day: 3   MJD: 55314.500

                                                         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 |      14     -39      70      48     -6 |       5     13
emr   uuuuu |      -5      -9      72     224      2 |      58     60
esa   uuuuu |     -29     -16     -25     -20     -2 |      15     22
gfz   uuuuu |      84      11     -36     -21     -3 |      15     22
grg   xxxxx |      63     -77     124      21     -8 |       6     10
igr   xxxxx |      23     -28     -50     105      5 |      -4     16
irf   xxxxx |       6     -23      70       5      7 |       0     16
jpl   uuuuu |       8     -51      -9     -86     15 |      21     30
mit   uuuuu |     -32     -53     248      -4      9 |      11     19
ngs   uuuuu |     -13      65    -241    -126     -5 |      -3     13
sio   uuxuu |      32      76    -348     146      7 |      60     62

Table 7.1581.4   GPS week: 1581   Day: 4   MJD: 55315.500

                                                         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     -67     -76      27     -7 |       4     13
emr   uuuuu |     -20      61     -62     171     -5 |      58     60
esa   uuuuu |     -21     -53    -115      40      0 |      14     21
gfz   uuuuu |     101      24     -17      12    -11 |      14     20
grg   xxxxx |     119    -135     141     116     -3 |       6     10
igr   xxxxx |      29      24     -30      99      2 |      -3     15
irf   xxxxx |      -3       1      11     -12      4 |       0     16
jpl   uuuuu |     -38     -26       2     -49     15 |      21     31
mit   uuuuu |     -46      -8     195     -83      8 |      10     19
ngs   uuuuu |       1     -17      -8     -95     -2 |      -4     13
sio   uuxuu |      35     100    -425      66      5 |      60     62

Table 7.1581.5   GPS week: 1581   Day: 5   MJD: 55316.500

                                                         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 |       0     -48      48     -50      5 |       3     12
emr   uuuuu |      21      39     -64     272      8 |      57     58
esa   uuuuu |       3     -51    -106      70      2 |      12     19
gfz   uuuuu |      63      43      30     -39      0 |      11     18
grg   xxxxx |      62     -96     156      55    -31 |       7     10
igr   xxxxx |     -13       4     -21     116      2 |      -3     15
irf   xxxxx |       2     -32      65     -30      7 |      -1     15
jpl   uuuuu |      21      -8     -24      53      5 |      21     31
mit   uuuuu |     -29     -57     220     -59     11 |      10     18
ngs   uuuuu |     -50      31     -64    -151     -7 |      -5     12
sio   uuxuu |      17      63    -408      -8     10 |      60     61

Table 7.1581.6   GPS week: 1581   Day: 6   MJD: 55317.500

                                                         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 |      18     -24      13      19     -3 |       5     15
emr   uuuuu |      51      76    -105     244      2 |      60     62
esa   uuuuu |     -27      25     -21     -37      2 |      15     21
gfz   uuuuu |      39      59      56     -40      8 |      13     20
grg   xxxxx |      57     -37     117     189    -23 |       6     11
igr   xxxxx |      24      38     -11      98      3 |       1     16
irf   xxxxx |       2       3      33      23      0 |       2     17
jpl   uuuuu |      49      38     -53      -5    -25 |      24     34
mit   uuuuu |     -21     -14     154     -31      3 |      13     22
ngs   uuuuu |     -41    -144     -81     -53     -2 |      -3     12
sio   uuxuu |      49      88    -558      98      1 |      63     65



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