Subject: [IGSREPORT-4394] Wk 0933 JPL Analysis Report
From: D C Jefferson
Date: Tue, 9 Dec 1997 9:14:58 PST

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IGS Electronic Report    Tue Dec  9  9:14:58 PST 1997      Message Number 4394
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Author: D C Jefferson
Subject: Wk 0933 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0933 (DAYS 327-333, DATES 1997 Nov 23 - Nov 29)
******************************************************************************

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 (128.149.70.41),
directory pub/jpligsac/0933.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09337.sum         This text file.
jpl09337.erp         Earth rotation parameters for GPS week 933.
jpl09337.snx         Ground station coordinates for GPS week 933, SINEX format.
jpl0933[0-6].sp3     GPS ephemerides for GPS week 933, sp3 format.
jpl0933[0-6].tro     Ground station troposphere estimates for GPS week 933.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

Begining day 329, we include data from PRN08, a new Block IIA satellite
launched on day 310.  Adhering to our usual practices, we have chosen to
heavily deweight data from this new satellite for all days used.  No solutions
for this satellite are included in our orbit products for week 933.

Original analyses indicated that data from PRN14 appear mismodeled on days
327 and 330-333.  Although used with normal weighting in the analyses of days
327, 330, and 331, we have chosen to remove this satellite's solution from the
corresponding orbit products (jpl09330.sp3, jpl09333.sp3, jpl09334.sp3).
Additionally we have reanalyzed days 332 and 333, and elected to deweight data
from this satellite for these two days only.  Consequently, this satellite
does not appear in the orbit products for these days either.

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 ALGO) used as reference clock day 327.
WARNING: Data from PRN14 deweighted days 332 and 333.
WARNING: Data from MAS1, SNI1 excluded day 327.
WARNING: Data from SANT, SOFI, THU1 excluded day 328.
WARNING: Data from KSTU, PIN2 excluded day 329.
WARNING: Data from SANT, SFER excluded day 330.
WARNING: Data from LAMA, SFER excluded day 331.
WARNING: Data from AOA1, CICE, CIT1, CSN1, KSTU, METS, OAT2, SELE, SOL1                  excluded day 332.
WARNING: Data from NICO excluded day 333.

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 933 (1997 Nov 23 - Nov 29)
     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
50775.50  19336  23821   276664  1669    4    5     9      9 37  9 25 -135 -258 
50776.50  19132  23547   274963  1733    3    4     8      8 37  9 25 -161 -226 
50777.50  18941  23348   273249  1696    3    3     8      8 37 11 26 -167 -236 
50778.50  18734  23135   271581  1640    4    4     9      9 37 10 26 -186 -191 
50779.50  18500  22971   269937  1648    3    4     9      9 37 10 26 -238 -207 
50780.50  18219  22785   268296  1634    4    5     9      9 37 10 26 -265 -207 
50781.50  17961  22617   266667  1623    3    4     8      8 37 10 26 -250 -200 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 933:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 933 (1997 Nov 23 - Nov 29)
      97 11 23   97 11 24   97 11 25   97 11 26   97 11 27   97 11 28   97 11 29
prn   3d rss (cm)
  1       6         10          7         28         15          9          8   
  2      20         10          8          8         13          9         11   
  3       8          8          8         14          9         10          6   
  4       9         10         12         16         19         15         13   
  5      14         12          6         10         12         10         10   
  6       6          6          6         10          8         10          7   
  7       9          8          8         11         12         11          8   
  8                          2131       3215       4201       4518       4980   
  9      14          8          7         14         13          9         10   
 10      20         14         14         18         17         11          9   
 14      72         21         16         62        104        244        343   
 15      19         25         14         19         19         10          8   
 16      11          8         10         12         14         12         18   
 17       6          8         15         11          9         13          8   
 18      19         23         15         14         12         14         21   
 19      17         17          7         10         14          9          8   
 21       7          9         14         14         15         11          9   
 22      13          7         10         11          8         12         19   
 23      18         11         12         11         14         14         13   
 24      11         15         15         14         10         16          7   
 25       6          8         10         13         14         14         11   
 26       9          9          4          7         12          6          9   
 27      12          9         10          7          8          5         10   
 29      10          7         17         23         11         13         22   
 30      18          8          8         14         12         12          8   
 31      10         11          5         16         16         18         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 933 (1997 Nov 23 - Nov 29)
 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)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALBH   2.0    11.5        9.47        41.2        3.53        2.68    
ALGO*  6.8    .128        .151        47.4        4.18        2.59    
ANKR    .8    181.       -.287        59.0        4.00        2.76    
AREQ   4.8    105.       -.274        54.6        4.00        1.53    
ASC1   6.0    333.       -.291        64.6        4.46        1.43    
BAHR   7.0    .533        235.        44.0        5.31        2.32    
CAS1   6.9    24.9        .102e+04    47.2        5.15        1.22    
CASA   2.0    19.3        199.        40.8        4.00        2.28    
CHAT   6.9    109.       -.313        73.3        5.00        2.25    
COCO   4.8    94.2       -.787e+04    44.0        5.22        2.47    
CRO1   3.0    724.       -.530        44.0        5.35        1.50    
DGAR   5.6    186.       -.258        77.6        6.49        1.35    
FAIR*  7.0    .930e-01   -.700        36.2        4.13        1.91    
FLIN   2.0    85.5       -.440        42.1        3.00        2.75    
FORT   2.0    .979e-01   -3.32        77.0        6.00        1.26    
GOL2*  7.0    .911e-01   -.492e-01    51.6        4.20        1.72    
GRAZ   1.0    .607       -.422        60.0        3.00        2.25    
GUAM   4.7    852.       -.387        57.0        6.68        1.54    
HARK   7.0    34.0        2.50        59.7        5.17        2.22    
HOB2    .9    83.3       -.553        49.0        5.00        1.96    
IISC   7.0    143.       -.313        72.0        5.46        1.70    
IRKT   4.8    .312       -.636        50.7        4.00        2.01    
KELY   2.0    95.3        .221e-01    38.1        5.50        1.20    
KERG   7.0    124.        916.          .         4.73        1.96    
KIRU   2.0    3.27        5.27        47.5        6.00        2.02    
KIT3   1.8    .154e+04   -.618e-01    59.0        4.00        2.13    
KOKB*  5.6    235.       -.278        77.0        4.46        1.19    
KOSG*  7.0    3.46       -12.1        40.1        3.46        2.09    
KOUR   3.0    4.81       -1.62        65.9        6.10        1.34    
KWJ1   6.0    881.       -.278        71.6        6.21        1.71    
LHAS   3.8    90.0       -.178        48.5        4.78        2.69    
LPGS   2.8    432.       -.106        58.2        4.76        1.23    
MAC1   2.6    .412e+04    .310        50.0        4.00        1.70    
MAD2*  7.0    337.       -.669        57.5        6.03        1.89    
MALI   6.3    .195e+04   -21.9        83.6        7.24        1.72    
MAS1   1.0    2.49        2.44        46.0        4.00        2.08    
MCM4   5.9    116.       -.267        48.4        5.00        1.07    
MDO1   1.0    44.9       -.299        36.0        4.00        1.94    
MDVO   2.0    .149        37.5        68.0        6.00        2.14    
MKEA   6.0    .139       -.118        51.4        4.70        2.07    
OHIG   6.3    .149e+05    .193        55.2        4.46        1.36    
ONSA   2.0    39.5       -.544        40.5        3.54        2.16    
PERT   6.9    2.66       -6.73        53.8        4.87        2.21    
PIE1    .9    .           .           50.0        4.00        1.90    
POL2   2.9    90.8       -.373        59.4        4.00        2.15    
RCM6   3.0    124.       -.304        65.2        4.00        2.05    
REYK   5.0    87.9       -.447        60.7        6.00        2.13    
SANT*   .9    .108e+04    .693        40.0        4.00        .985    
SELE   1.6    111.       -.262        35.4        4.00        1.90    
SHAO   3.0    88.8       -.363        47.4        4.36        1.76    
STJO   4.0    2.53        1.16        42.0        4.93        2.29    
TAHI    .5    173.       -.419          .         4.00        2.20    
THU1   5.0    94.6       -.443        49.7        5.43        2.06    
TID2*  6.9    30.5       -.185        43.2        5.44        2.57    
TOUL   1.0    .342       -1.38        42.0        5.00        2.50    
TSKB    .9    1.11       -.669        48.0        5.00        3.05    
USUD   3.0    2.27       -12.0        41.7        4.69        2.25    
WES2   1.0    .260       -.845e-01    58.0        4.00        2.55    
WTZR*  7.0    .592       -.356        62.0        4.31        2.67    
WUHN   3.9    5.38       -99.0        45.3        5.00        2.11    
YAR1*  4.8    91.3       -.446        42.0        4.21        1.77    
YELL*  7.0    7.66        4.13        38.6        4.14        1.80    
PRN01  7.0    81.3        33.1        53.8        5.00        2.15    
PRN02  6.7    78.7       -428.        57.6        4.88        2.29    
PRN03  7.0    80.2        74.3        53.9        5.00        2.14    
PRN04  6.9    81.8        58.4        54.3        5.00        2.05    
PRN05  6.8    81.9        124.        53.3        5.03        2.32    
PRN06  7.0    78.3       -.436        54.7        5.00        2.19    
PRN07  6.9    81.3        761.        52.3        5.00        2.12    
PRN09  7.0    81.6       -20.0        53.1        5.00        2.23    
PRN10  7.0    79.8        15.2        56.3        5.16        2.18    
PRN14  4.5    79.9        24.1        55.6        4.63        1.76    
PRN15  6.8    3.06        494.        56.9        4.87        2.01    
PRN16  7.0    83.1        37.5        56.7        4.87        2.14    
PRN17  6.6    84.0       -166.        55.8        5.15        2.01    
PRN18  7.0    80.3        7.34        54.7        4.74        2.06    
PRN19  7.0    81.1        317.        51.4        4.76        2.33    
PRN21  7.0    81.9        6.96        56.3        5.00        2.13    
PRN22  6.6    78.8        31.1        56.0        5.00        2.04    
PRN23  7.0    82.6        6.02        55.4        5.00        2.32    
PRN24  6.9    79.8        784.        54.3        5.00        2.10    
PRN25  7.0    85.0       -6.88        54.5        5.00        1.91    
PRN26  7.0    79.7       -45.4        53.0        5.00        2.13    
PRN27  7.0    79.5        8.45        56.0        5.00        2.26    
PRN29  7.0    80.0        144.        51.5        4.60        2.30    
PRN30  6.6    81.9       -12.3        54.4        5.16        2.14    
PRN31  6.9    79.2       -.179        55.3        4.86        2.05    
_______________________
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 11 23   97 11 24   97 11 25   97 11 26   97 11 27   97 11 28   97 11 29
prn   3d rss (cm)
  1     241        418        380        288        517        508        410   
  2     249        308        208        421        460        481        271   
  3     330        282        416        346        359        298        306   
  4     292        304        322        342        322        379        429   
  5     640        551        513        504        421        463        451   
  6     529        594        640        643        668        822        603   
  7     308        303        303        351        308        264        637   
  8                         10464      63193          0          0          0   
  9     172        251        223        301        507        603        328   
 10     321        377        401        326        343        517        516   
 14     543        464        632        733       2498        524        539   
 15     349        712        334        242        209        298        457   
 16     289        334        792        839        449        551        371   
 17     439        762        621        543        389        491        835   
 18     303        250        488        416        292        429        314   
 19     789       1146        908        524        631        439        414   
 21     216        496        369        203        229        449        505   
 22     724        450        679        541        492        522        637   
 23     519        983        277        696        220        381        391   
 24     632        943       1093        468       1705       1162        708   
 25     596        555        502        390        514        345        325   
 26     302        232        223        371        284        320        401   
 27     256        293        220        292        270        544        428   
 29     375        392        384        169        161        387        784   
 30     295        495        503        314        380        894        397   
 31     306        223        242        261        312        248        396   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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