Subject: [IGSREPORT-3842] Wk 0908 JPL Analysis Report
From: D C Jefferson
Date: Thu, 12 Jun 1997 16:44:12 PDT

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IGS Electronic Report    Thu Jun 12 16:44:12 PDT 1997      Message Number 3842
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Author: D C Jefferson
Subject: Wk 0908 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0908 (DAYS 152-158, DATES 1997 Jun 01 - Jun 07)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb

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 (128.149.70.41),
directory pub/jpligsac/0908.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09087.sum         This text file.
jpl09087.erp         Earth rotation parameters for GPS week 908.
jpl09087.snx         Ground station coordinates for GPS week 908, SINEX format.
jpl0908[0-6].sp3     GPS ephemerides for GPS week 908, sp3 format.
jpl0908[0-6].tro     Ground station troposphere estimates for GPS week 908.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

A clock reset of about 0.2 ms was detected for GPS19 at approximately 15:10 UT
on day 153.

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: FAIR (not ALGO) used as reference clock on day 158.
WARNING: Data from CSN1, LHAS, SANT, STL3 excluded day 152.
WARNING: Data from FLIN, KOUR, STL3, TSKB excluded day 153.
WARNING: Data from SNI1, STL3 excluded day 154.
WARNING: Data from ZWEN excluded day 155.
WARNING: Data from CASA, CMP9, TMGO, ZWEN excluded day 156.
WARNING: Data from CASA, KELY, MEDI, TMGO excluded day 157.
WARNING: Data from CASA, SNI1, TMGO excluded day 158.

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 908 (1997 Jun 01 - Jun 07)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
50600.50  -8372  51100  -425769  2143    3    3     8      8 37 10 25  293  172 
50601.50  -8135  51256  -427915  2149    3    3     8      8 37 11 25  317  171 
50602.50  -7874  51418  -430032  2085    3    3     8      8 37 11 25  322  205 
50603.50  -7608  51602  -432068  1987    3    3     8      8 37 10 25  321  187 
50604.50  -7372  51742  -434029  1934    3    3     8      8 37 10 25  297  167 
50605.50  -7131  51848  -435924  1856    3    3     8      8 37 10 25  304  163 
50606.50  -6912  51939  -437772  1841    3    3     8      8 37 10 25  311  123 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 908:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 908 (1997 Jun 01 - Jun 07)
      97  6  1   97  6  2   97  6  3   97  6  4   97  6  5   97  6  6   97  6  7
prn   3d rss (cm)
  1      22          8         14          6          9         11         17   
  2      10          8         12         10         10          8          9   
  3      20         15         10         15         14         19         11   
  4      10         11         14         13         12          8          9   
  5      27         19         11         26         31         22         14   
  6      20         14         11          9         18         28         15   
  7      12          6         13         17         17         14         13   
  9      17         18         17         18         13         11         13   
 10      17         10         11         10         10         12          7   
 14       6         11          7         10          9         10          9   
 15       9          7         10         13          8         12         11   
 16      10          6         11         10          7          5          4   
 17      16         13         12         14         13          9          9   
 18      11         16         14          7         10          9          8   
 19      14         25         22         13         36         16          7   
 21      10          9          9          5         10         13          9   
 22      11         12         13         11         11         12         15   
 23      17         18         17         14         14         20         13   
 24      13         11         14         14         10          5         13   
 25      15          8         10         11         13         11          8   
 26       8         14         15         13          9          7         10   
 27       8          8          6          7          8          7          7   
 29      11         16         10         10         14         31         35   
 30      12         16          9         14         14         13         36   
 31      16         12         10          8         10          6          7   
_______________________
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 908 (1997 Jun 01 - Jun 07)
 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*  7.0    .127        .703        48.5        4.16        2.98    
ANKR   1.0    132.       -.727        54.0        5.00        2.68    
ASC1   6.8    92.7       -.580        67.4        5.45        1.66    
BAHR   6.8    .113e+06    191.        57.3        5.31        3.51    
BRAZ   3.0    97.0       -.646        55.4        5.36        1.88    
BRUS   5.0    719.        3.42        60.6        4.86        2.90    
CAS1   6.9    12.8        .287e+04    46.0        6.59        1.84    
CHAT   7.0    104.       -.575        78.6        5.45        2.49    
COCO   6.9    133.       -.274e+04    36.1        7.98        2.92    
CRO1   7.0    142.       -.567        50.7        5.76        1.98    
DGAR   7.0    101.       -.579        58.1        7.29        1.77    
FAIR*  7.0    25.0       -.369        37.1        4.90        2.65    
FORT   3.9    .175        73.7        49.2        5.57        3.66    
GODE   1.0    .142       -8.48        37.0        5.00        2.94    
GOL2*  7.0    33.6       -.504        47.7        5.45        2.99    
GUAM   6.0    128.       -.640        92.7        7.60        2.40    
HART*  6.0    21.8        3.14        59.7        4.53        2.28    
HRAO   1.0    85.4       -.681        82.0        4.00        2.63    
IISC   7.0    86.1       -.575        71.6        6.47        2.66    
IRKT   7.0    .291       -.626        64.2        5.15        3.16    
KELY   1.0    81.5       -.527        44.0        5.00        1.60    
KERG   3.8    .182e+05    133.          .         5.53        2.58    
KIT3   4.0    160.       -.534        58.8        5.52        3.14    
KOKB*  6.7    354.       -.658        73.1        5.75        1.70    
KOSG*  7.0    2.88       -10.1        42.9        4.63        2.54    
KWJ1   7.0    207.       -.593        63.3        9.62        1.70    
LHAS   5.8    .141e+05    .599e-01    54.5        5.51        2.16    
MAC1   3.9    83.0       -.555        29.5        4.27        2.61    
MADR*  6.8    .640       -.206          .         7.04        2.11    
MALI   7.0    .488e+05   -129.          .         8.87        2.04    
MAS1   7.0    105.       -.371        42.2        4.90        2.18    
MCM4   7.0    91.2       -.573        32.6        4.45        1.94    
MKEA   7.0    .152       -.873        44.8        5.30        2.85    
MOIN   5.8    90.5       -.638        69.3        6.37        1.78    
NOTO   1.0    .229       -2.90        35.0        5.00        2.90    
OHIG   4.7    .976e+06    63.3        58.2        5.00        2.14    
PERT   7.0    2.20       -1.21        56.7        6.71        2.62    
SANT*  5.1    784.       -.251        35.9        5.19        1.51    
TAHI   6.5    139.       -.584        77.2        6.14        2.57    
THU1   6.0    76.5       -.586        45.4        5.69        2.63    
TID2*  6.8    330.       -1.64        36.2        5.48        2.78    
USUD   7.0    4.16       -.398e-01    36.9        5.65        2.97    
WTZR*  2.9    656.       -2.89        60.0        4.00        2.51    
WUHN   3.8    .201e+06   -.132e+04    50.9        5.53        2.94    
YAR1*  7.0    2.40       -6.60          .         5.03        2.47    
YELL*  7.0    .436       -1.37        44.7        4.59        1.81    
PRN01  6.9    80.5        20.4        54.7        5.74        2.33    
PRN02  6.6    82.8       -370.        57.9        5.90        2.35    
PRN03  6.9    80.5        19.4        55.7        6.00        2.53    
PRN04  6.8    83.7        29.9        53.4        6.30        1.97    
PRN05  6.5    79.5        98.2        57.7        6.02        2.12    
PRN06  6.9    81.9       -.621        53.7        5.87        2.54    
PRN07  6.9    79.8        746.        56.7        5.91        2.22    
PRN09  6.9    80.7       -40.8        57.2        5.87        2.20    
PRN10  6.8    81.9        8.19        56.8        6.00        2.11    
PRN14  6.9    82.3        18.6        55.9        5.87        2.31    
PRN15  6.8    3.72        432.        54.6        6.02        2.31    
PRN16  6.9    81.3        13.8        56.5        5.87        2.31    
PRN17  6.8    81.4       -151.        54.8        5.90        2.33    
PRN18  6.9    80.0        .148        50.6        5.73        2.51    
PRN19  6.8    .155e+05    60.0        49.8        5.60        2.20    
PRN21  6.9    82.2        57.6        55.9        6.00        2.45    
PRN22  6.7    83.5        395.        52.5        5.90        2.48    
PRN23  6.9    80.0       -.353        54.2        6.30        2.35    
PRN24  6.9    82.5        535.        53.0        5.88        2.07    
PRN25  6.9    80.9       -5.99        49.8        6.00        2.27    
PRN26  6.9    83.0       -185.        53.1        5.61        2.34    
PRN27  6.9    84.7        30.2        51.0        5.73        2.51    
PRN29  6.9    80.5        52.0        56.4        6.04        2.58    
PRN30  6.6    81.0       -60.0        55.5        6.00        2.33    
PRN31  6.9    82.7        401.        54.0        5.74        2.50    
_______________________
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
      97  6  1   97  6  2   97  6  3   97  6  4   97  6  5   97  6  6   97  6  7
prn   3d rss (cm)
  1     235        221        274        338        372        293        283   
  2    1400        970        891        444        393        520        416   
  3     318        318        326        433        299        353        304   
  4     263        517        256        786        493        669        202   
  5     496        605        318        817        408        511        330   
  6     347        388        709        493        440        476        374   
  7     444        555        341        193        343        309        285   
  9     267        618        214        488        377        251        251   
 10     274        859        265        249        307        278        419   
 14     748        620        985        399        343        367        437   
 15     315        288        430        313        460        644        222   
 16     854        840        305        379        359        956       2244   
 17     450        342        232        223        257        353        247   
 18    1228        333        216        281        242        247        280   
 19     613        173        265        153        409        222        319   
 21     308        274        314        284        276        428        475   
 22     447        366        630        305        552        954        534   
 23     760        549        442        395        631        305        752   
 24     203        644        370        244        835        280        263   
 25     641        719        281        248        288        248        423   
 26     278        388        238        161        210        320        180   
 27     622        367        329        473        489        560        237   
 29     318        496        575        388        273        271        252   
 30     334        311        357        640        617        286        244   
 31     187        231        558        581        732        635        497   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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