Subject: [IGSREPORT-6459] Wk 1026 JPL Analysis Report
From: D C Jefferson
Date: Tue, 21 Sep 1999 15:45:53 PDT

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IGS Electronic Report    Tue Sep 21 15:45:53 PDT 1999      Message Number 6459
******************************************************************************

Author: D C Jefferson
Subject: Wk 1026 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1026 (DAYS 248-254, DATES 1999 Sep 05 - Sep 11)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, M M Watkins, F H Webb, J F Zumberge

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

Files listed below are available in Unix compressed format and can be
retrieved using anonymous ftp to sideshow.jpl.nasa.gov (137.78.60.30),
directory pub/jpligsac/1026.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10267.sum         This text file.
jpl10267.erp         Earth rotation parameters for GPS week 1026.
jpl10267.snx         Ground station coordinates for GPS week 1026, SINEX format.
jpl1026[0-6].sp3     GPS ephemerides for GPS week 1026, sp3 format.
jpl1026[0-6].tro     Ground station troposphere estimates for GPS week 1026.
jpl1026[0-6].clk     GPS and ground station clocks for GPS week 1026, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 9.0 cm

We continue to exclude data from IGS stations that do not employ Dorne-Margolin
style antennae (see IGS Report #6260).

A large clock discontinuity (reset) of about 5 microseconds was detected
for PRN23 at approximately 06:30 on day 251.

Due to potential problems, data from stations mentioned below were not
considered for use in the global solution for the day indicated.  (For
geographical reasons, they may not have been used in any case.)

WARNING: PIE1 (not USNO) used as reference clock the entire GPS week 1026.
WARNING: Data from JAB1, MAC1 excluded day 248.
WARNING: Data from MAC1 excluded day 249.
WARNING: Data from PRN29, BILL excluded day 250.
WARNING: Data from PRN29, BILL, MAC1 excluded day 251.
WARNING: Data from BILL, CASA, HARV, MAC1, SEY1, SIO3 excluded day 252.
WARNING: Data from PRN15, CASA, MAC1, PIMO, SIO3 excluded day 253.
WARNING: Data from CASA, HFLK, JAB1, MAC1, SIO3 excluded day 254.

In the following table, UT1R-UTC are the integrated values based on estimated
LODR values in the adjacent column.  See IGS Report No. 1498 (jpl07827.sum)
for details:

JPL ERP TABLE                               GPS week 1026 (1999 Sep 05 - Sep 11)
version 2           
     MJD   XPole   Ypole  UT1R-UTC   LODR Xsg Ysg UTsg LOsg Nr Nf Nt   Xrt   Yrt
         10**-6" 10**-6"      .1us .1us/d 10**-6" .1us .1us/d          10**-6"/d
51426.50   -4311  366362   4706830   9280  43  43  146  146 40  0 27  1255   414
51427.50   -3034  366954   4697762   8855  43  43  146  146 40  0 27  1290   794
51428.50   -1900  367472   4689385   7899  42  42  151  151 40  0 26  1001   793
51429.50    -737  368052   4681983   6906  44  42  152  152 40  0 26   953  1073
51430.50     -28  368904   4675531   5998  40  41  141  141 40  0 27   376   475
51431.50     267  369382   4669577   5909  44  44  148  148 40  0 26   178   178
51432.50     586  369981   4663784   5677  40  39  143  143 40  0 27   129   389
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1026:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1026 (1999 Sep 05 - Sep 11)
      99  9  5   99  9  6   99  9  7   99  9  8   99  9  9   99  9 10   99  9 11
prn   3d rss (cm)
  1       5          5          4          7         10          6          8   
  2       7          5          3          8          9         10          8   
  3      11          8         17         14          7          9         12   
  4       7          6          7         12          9          9          7   
  5       8          8          3          6          8          5          9   
  6       6          4          6          6          6          9          5   
  7       8          9          4          5          8          8         11   
  8       5          8          4          9         15         10          8   
  9      10         10         11          8         12          8          8   
 10      12          6          5          6          7          5          5   
 13      14          9         10         11         20          9         10   
 14       6         10         13          9          6          6          8   
 15      16         18         19         18         14                    28   
 16       7          6          8          5          4          8          7   
 17       8          9         10         10         14         14          4   
 18       7          6         12         24         10          5          6   
 19       7         16         18         11         12         13         16   
 21      25         15         15         11         14         14         14   
 22       8          8          8         14         13         12          7   
 23      14         14         19         11          6         19         15   
 24      11         11          7         21         21          5         15   
 25       5          9         15         23          8          9         10   
 26      11         11         10         10          8         12         11   
 27       6          4          6          7          9          6          6   
 29      14         16                                8         13          9   
 30      10          6          6         10          9          9          7   
 31      11          9         12         11         18         14         11   
_______________________
END ORBIT REPEATABILITY TABLE

The following table statistically summarizes this week's "engineering data", as
described in IGS Report No. 1528:

JPL ENGINEERING DATA SUMMARY TABLE          GPS week 1026 (1999 Sep 05 - Sep 11)
 receiver/transmitter (dot means point positioned, * means fiducial site)
 |     days analyzed
 |     |      rms clock noise (ns)
 |     |      |           average clock solution (us)
 |     |      |           |           rms pseudorange (cm)
 |     |      |           |           |   (dot means pcode not analyzed)
 |     |      |           |           |           rms phase (mm)
 |     |      |           |           |           |           average arc (hr)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALGO*  6.9    .131       -.206        42.0        6.01        3.26    
AOML   6.0    94.4       -.134e-01    66.1        5.69        2.51    
AREQ*  3.0    112.       -.124e-01    63.0        4.00        2.49    
ARTU   3.9    93.6       -.803e-01    24.3        5.27        2.60    
ASC1   5.8    56.6       -.147e-01    59.6        6.51        3.22    
AUCK*  1.0    82.6       -.212e-01    52.0        5.00        2.59    
BAHR   2.0    .626        910.        42.5        5.52        3.20    
BOGT   4.0    112.       -.845e-02      .         6.06        1.44    
CHAT*  6.0    103.       -.428e-02    86.8        5.36        2.85    
COCO   5.5    115.       -.251e-01    82.2        5.00        2.19    
DARW   2.0    128.       -.245e-01    65.9        5.54        2.36    
DGAR   1.8    107.       -.316e-01    77.5        6.67        1.92    
EISL   7.0    138.       -.789e-02    68.3        5.15        2.76    
FAIR*  6.8    199.       -.717e-01    27.7        5.87        2.24    
FLIN   2.0    106.       -.829e-02    56.0        5.00        2.51    
FORT*  6.6    .159        .182e-01    81.6        5.63        1.76    
GOL2*  7.0    133.       -.788e-01    85.6        4.61        2.25    
GUAM*  6.9    144.       -.476e-01    91.9        6.46        2.14    
HARK*  7.0    .289e+06    500.        60.6        4.60        3.51    
HOB2*  1.0    .111       -10.4        47.0        5.00        2.85    
HOLB   1.0    15.5        192.        31.0        7.00        3.21    
HRAO   6.0    115.        .295        63.0        4.36        2.79    
IISC   4.9    112.       -.243e-01    80.6        5.00        1.86    
IRKT*  7.0    .183        315.        62.5        5.00        2.66    
JAB1   4.6    96.6       -.102        42.0        5.44        3.52    
KELY   3.0    91.4       -.144e-02    55.4        6.00        1.39    
KERG*  7.0    .289e+06    500.          .         5.31        3.18    
KIT3*  5.7    480.       -.667e-01    80.6        4.73        2.88    
KOKB*  7.0    .127e+06    994.        52.7        7.31        3.87    
KWJ1*  6.8    .124e+05   -.554        88.3        6.16        1.84    
MAC1*   .9    137.       -.107        38.0        4.00        2.01    
MAD2   1.0    .421       -.499        82.0        6.00        2.31    
MAG0   2.0    116.       -.855e-01    30.0        5.00        2.31    
MCM4*  3.8    116.       -.249e-02    53.3        5.00        1.11    
METS   3.0    47.8       -130.        62.6        4.07        2.42    
NICO   3.9    116.       -.740e-02    54.9        5.00        2.59    
NOTO   1.0    .141        175.        60.0        7.00        3.08    
NOUM   5.6    .290e+06    499.        66.9        4.87        2.02    
NYA1   2.8    138.        .346        37.1        5.31        1.55    
ONSA*  7.0    34.0       -.518e-01    47.9        4.60        2.51    
PETP   5.0    92.0       -.680e-01    37.0        6.22        2.85    
PIE1*  7.0    .           .           54.2        4.74        2.37    
PIMO   5.8    123.       -.356e-01    79.1        6.18        2.03    
REYK   3.0    124.        .159e-01    62.7        6.00        1.96    
RIOG   2.9    97.2       -.803e-01    27.8        4.00        3.66    
SANT*  6.9    174.        .534        56.2        4.76        2.67    
SEY1   3.8    .649e+04   -.189        86.0        6.26        1.78    
SFER   5.0    .537        151.        68.9        5.21        2.87    
STJO   2.0    3.42        .405e-01    39.5        5.52        3.41    
THTI   7.0    .289e+06    498.        85.0        5.16        2.68    
THU1*  2.0    83.3        .613e-02    45.0        5.53        1.97    
TID2*  7.0    .112        1.18        44.2        5.16        2.64    
TIXI   3.8    102.       -.761e-01    29.8        5.00        2.54    
TOW2    .9    98.1        .902e-02    51.0        4.00        2.51    
TSKB*  2.0    2.12       -.665e-01    60.0        5.52        2.75    
UCLU   1.0    119.       -.272e-01    44.0        5.00        2.75    
USUD   2.9    725.       -.751        45.7        6.37        2.84    
WES2   3.0    .186       -.182        62.1        5.68        2.65    
WTZR*  6.9    1.62        .811        54.2        6.00        3.13    
WUHN   2.0    171.       -.263e-01    60.5        5.54        2.62    
XIAN   4.7    113.        .180e-02    58.0        5.21        2.70    
YAR1*  7.0    82.8       -.891e-03    44.1        4.62        2.06    
YELL*  4.0    .119        .494        45.2        5.00        1.72    
YKRO   1.0    70.8       -.103e-01    98.0        6.00        1.29    
ZECK   1.9    76.3       -.228e-03    52.3        5.00        2.40    
PRN01  7.0    86.1        97.5        57.8        5.46        2.89    
PRN02  7.0    80.1       -108.        67.2        5.16        2.65    
PRN03  7.0    81.4        39.4        63.4        5.16        2.45    
PRN04  6.8    79.9        181.        57.9        5.31        2.41    
PRN05  7.0    82.0        216.        60.3        5.00        2.47    
PRN06  7.0    80.1        .406e-01    59.4        5.00        2.52    
PRN07  7.0    81.0        564.        59.2        5.30        2.23    
PRN08  7.0    82.4        209.        64.6        5.45        2.18    
PRN09  6.9    80.2       -9.27        59.6        5.31        2.50    
PRN10  7.0    81.9        40.5        65.1        5.15        2.41    
PRN13  7.0    79.0       -147.        60.6        5.76        2.37    
PRN14  7.0    82.7        32.6        57.9        5.30        2.37    
PRN15  5.8    3.05        723.        64.3        5.35        2.37    
PRN16  7.0    80.8        135.        62.3        5.46        2.40    
PRN17  6.9    79.4       -221.        61.4        5.16        2.36    
PRN18  7.0    82.8        26.4        56.2        5.45        2.48    
PRN19  6.8    81.2        55.9        59.7        5.34        2.36    
PRN21  7.0    81.7        29.6        62.5        5.00        2.42    
PRN22  7.0    82.7        114.        64.8        5.16        2.53    
PRN23  6.6    183.        2.62        62.2        5.63        2.52    
PRN24  6.7    81.4        580.        59.5        5.60        2.35    
PRN25  6.8    79.8        2.22        58.3        5.30        2.47    
PRN26  7.0    81.8        672.        60.9        5.45        2.40    
PRN27  6.9    81.4        31.3        61.7        5.30        2.53    
PRN29  5.0    80.7        520.        59.0        5.41        2.24    
PRN30  7.0    81.5       -31.2        59.7        5.15        2.45    
PRN31  7.0    82.2        24.9        62.0        5.31        2.26    
_______________________
END ENGINEERING DATA SUMMARY TABLE

As described in IGS Mail Message 37, the following table compares the JPL
precise ephemerides with those from the broadcast ephemeris:

JPL COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
      99  9  5   99  9  6   99  9  7   99  9  8   99  9  9   99  9 10   99  9 11
prn   3d rss (cm)
  1     380        262        264        357        305        305        305   
  2     176        267        266        331        420        192        265   
  3     174        203        164        223        278        247        166   
  4     204        290        465        268        379        400        458   
  5     180        259        306        334        314        351        294   
  6     546        516        580        628        569        530        510   
  7     218        187        164        163        225        321        322   
  8     312        289        360        509        418        330        325   
  9     233        345        212        252        589        235        275   
 10     223        251        337        243        228        203        250   
 13     267        138        167        374        387        217        352   
 14     964        553        576       1251        364        283        440   
 15    1712        310        273        685        232                   554   
 16     316        424        499        592        510        311        513   
 17     234        381        361        150        193        412        202   
 18     315        332        354        806       1061        907        250   
 19     255        195        209        231        291       1201       1141   
 21     242        498        319        299        204        441        336   
 22     330        373        420        302        332        305        394   
 23     525        392        228        388        593        404        475   
 24    1569        596        597        412        769       1284        334   
 25     262        310        355        485        309        389        545   
 26     767        632        756        323        282        405        321   
 27     372        548        400        451        495        561        468   
 29     177        475                              319        191        575   
 30     364        356        467        241        307        180        204   
 31     255        197        286        392        475        391        300   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo aoml areq artu asc1 auck bahr bogt chat coco darw dgar eisl fair flin fort gol2 guam hark hob2 holb hrao iisc irkt jab1 kely kerg kit3 kokb kwj1 mac1 mad2 mag0 mcm4 mets nico noto noum nya1 onsa petp pie1 pimo reyk riog sant sey1 sfer stjo thti thu1 tid2 tixi tow2 tskb uclu usud wes2 wtzr wuhn xian yar1 yell ykro zeck

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