Subject: [IGSREPORT-4815] Wk 0952 JPL Analysis Report
From: M B Heflin
Date: Tue, 21 Apr 1998 16:55:39 PDT

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IGS Electronic Report    Tue Apr 21 16:55:39 PDT 1998      Message Number 4815
******************************************************************************

Author: M B Heflin
Subject: Wk 0952 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0952 (DAYS 95-101, DATES 1998 Apr 05 - Apr 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/0952.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09527.sum         This text file.
jpl09527.erp         Earth rotation parameters for GPS week 952.
jpl09527.snx         Ground station coordinates for GPS week 952, SINEX format.
jpl0952[0-6].sp3     GPS ephemerides for GPS week 952, sp3 format.
jpl0952[0-6].tro     Ground station troposphere estimates for GPS week 952.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 14.0 cm

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: MKEA (not NRC1) used as reference clock on days 095 through 097.
WARNING: GRAZ (not NRC1) used as reference clock on days 098 and 100.
WARNING: TID2 (not NRC1) used as reference clock on day 099.
WARNING: USNO (not NRC1) used as reference clock on day 101.
WARNING: Data from PRN08 were deweighted for the entire week 952.
WARNING: Data from CASA, KSTU excluded day 095.
WARNING: Data from CASA, KIT3 excluded day 096.
WARNING: Data from CASA, FAIR, IRKT, KIT3, KSTU, KWJ1, LEEP, PETR, SHAO, SUWN, TAEJ, USUD, XIAN, ZWEN excluded day 097.
WARNING: Data from CASA, KIT3, LEEP, ZWEN excluded day 098.
WARNING: Data from KIT3, LEEP, NOUM, ZWEN excluded day 099.
WARNING: Data from KIT3, LPGS excluded day 100.
WARNING: Data from CARR, LPGS excluded day 101.

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 952 (1998 Apr 05 - Apr 11)
     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
50908.50 -11326  26243    21697  2038    2    3    11     11 37 22 27 -128  172 
50909.50 -11383  26437    19694  1968    3    3    11     11 37 23 27  -91  217 
50910.50 -11392  26688    17712  1995    3    3    11     11 37 20 27  -58  271 
50911.50 -11398  26956    15716  1997    3    3    11     11 37 22 27  -43  221 
50912.50 -11377  27223    13730  1976    3    3    11     11 37 23 27   -5  201 
50913.50 -11359  27527    11773  1938    3    3    11     11 37 22 27  -42  281 
50914.50 -11344  27831     9806  1995    3    3    11     11 37 25 27  -73  273 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 952:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 952 (1998 Apr 05 - Apr 11)
      98  4  5   98  4  6   98  4  7   98  4  8   98  4  9   98  4 10   98  4 11
prn   3d rss (cm)
  1      17         19         14          8         11          6         10   
  2      13         12         24         22          9         17         21   
  3      10         10          9         15         14         13         11   
  4      11         15         10         16         14         15         13   
  5       8         11         15          8         15         12         12   
  6      12         24         13         12         12          9          9   
  7      19         17         12          9          7         10         13   
  8    1230        833        350         95         32         51         62   
  9      10         13         32         18         22         10         26   
 10      12         10         19         11         24         18         11   
 13       9         10         18         14          7          7         12   
 14       6         12         25         18         11         14         19   
 15      20         15          9          8          9         16         15   
 16      13         12         15          7          8         10         13   
 17       7         11         16         14         14         20         34   
 18      18         14         15          7         10         12         17   
 19      23         42         51         36         11         26         44   
 21      15         17         14         15         14         12         18   
 22      11         20         15         16         10         14         10   
 23       8         17         20         14         16         27         15   
 24      10         13         13         10         17         15         10   
 25      12         15         12         12          7          6         12   
 26       9         12         11         19         21         19         23   
 27      19          9         12         14          9         15         15   
 29      15         18         15          9          6         11         14   
 30       9         11         12          9         14         17         10   
 31       9         12         16         18         15         19         14   
_______________________
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 952 (1998 Apr 05 - Apr 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*  7.0    1.50       -.475        55.4        4.00        2.73    
AREQ*  1.0    165.       -.242        74.0        4.00        2.48    
ASC1   2.6    .120e+04    .491        83.5        5.00        1.48    
AUCK   7.0    88.7       -.683        49.4        4.31        2.50    
BAHR   6.0    1.39        97.3        39.9        5.18        2.77    
BARB   1.9    111.       -.423e-01    34.5        6.00        2.61    
BOGT   3.6    480.        .434        70.9        6.32        1.63    
CAS1   5.4    .702e+07   -.125e+05    37.7        6.00        1.09    
CICE   2.0    94.8        .492        45.5        4.00        2.74    
COCO   2.9    141.       -.168e+05    53.4        5.71        2.42    
CRO1   1.0    147.       -6.48        64.0        5.00        1.86    
DAV1*  6.8    140.       -.682          .         4.86        1.58    
DGAR   4.0    706.        .302        70.6        6.58        1.52    
EISL   6.9    136.       -.711        69.6        5.31        2.46    
FAIR*  3.9    .384       -1.32        42.1        4.51        2.53    
FORT*  7.0    .479       -.887        88.3        5.87        1.67    
GALA   1.5    260.       -3.53        83.1        5.00        1.32    
GOL2*  6.9    .800       -7.24        63.0        4.31        1.95    
GRAZ*  2.1    .           .           79.0        4.53        2.58    
GUAM*  6.8    125.       -.730        70.7        6.72        1.93    
HARK*  7.0    16.4       -2.29        58.3        5.15        2.39    
IRKT*  5.9    .454       -.520        62.9        4.84        2.51    
KELY   3.0    90.1        .164          .         5.67        1.47    
KERG*  3.4    .389e+04    .334e+04      .         5.75        2.46    
KIT3*  2.0    125.        .124        75.3        4.00        1.62    
KOKB*  6.8    1.15       -.517        84.8        5.54        2.50    
KOSG*  1.0    1.66       -12.9        47.0        4.00        2.66    
KWJ1*  5.0    696.       -1.07        76.6        5.86        1.59    
LHAS*  7.0    110.       -.696        73.1        4.16        2.47    
MAC1*  6.9    100.       -.680        40.1        4.15        2.13    
MAD2*  6.9    140.       -.502        54.5        5.46        2.23    
MAG0    .9    .288e+06    495.        30.0        5.00        2.35    
MALI*  7.0    128.       -390.        95.6        7.16        1.67    
MATE*  1.0    1.52       -1.34        42.0        5.00        2.84    
MCM4   4.0    92.5       -1.37        44.4        4.78        1.21    
MDVO   2.8    .240        99.6        75.7        6.36        1.99    
MKEA   2.9    .           .           63.7        4.35        2.64    
NICO   1.0    84.8        .496        61.0        4.00        2.13    
NOTO    .8    .192       -3.04        42.0        5.00        2.85    
NRC1   1.0    .699        .234        94.0        3.00        2.82    
NTUS   3.6    .523e+04    .143        82.0        6.11        1.56    
NYAL   6.9    .366       -1.16        70.2        5.00        1.56    
ONSA*  3.5    .110e+04   -.896        39.7        3.81        1.89    
PETR   6.0    94.6       -.871        48.9        5.00        2.39    
POL2   4.0    90.4       -1.37        68.4        4.00        2.27    
RCM6   5.0    126.        .398        99.8        5.03        2.49    
REYK   2.0    169.        .385        62.5        6.00        1.85    
SANT*  5.7    395.       -1.33        50.6        4.97        1.56    
STJO   1.0    2.32        3.70        60.0        5.00        2.54    
TAHI   2.4    .217e+04   -1.37        80.6        6.45        1.83    
TID2*  7.0    .397        6.80        45.2        5.16        2.16    
TSKB*  5.8    1.38       -2.61        54.9        4.37        2.84    
USNO   1.1    .           .           71.0        5.00        2.71    
USUD   3.0    1.03        7.06        54.0        4.00        2.80    
WES2   1.0    .464        .977e-01    76.0        4.00        2.61    
WSLR   2.0    33.2        380.        51.1        4.00        2.98    
WTZR*  7.0    .434        .488        65.3        4.46        2.68    
WUHN   4.7    7.53       -.107e+04    57.3        5.50        2.33    
YAR1*  7.0    90.6       -.679        46.7        4.16        2.07    
YELL*  7.0    24.0        4.55        46.0        5.02        1.57    
ZECK   1.0    74.9        .268        56.0        4.00        2.58    
PRN01  7.0    80.7        43.4        56.8        5.00        2.24    
PRN02  6.9    80.1       -474.        68.4        5.00        2.09    
PRN03  7.0    80.1        115.        57.6        5.00        2.08    
PRN04  6.6    81.9        20.1        62.7        5.17        1.96    
PRN05  7.0    80.8        143.        65.8        5.00        2.26    
PRN06  7.0    79.6       -.985        63.9        5.00        2.16    
PRN07  7.0    79.6        773.        65.7        5.00        2.02    
PRN09  6.6    80.4       -37.2        61.9        5.00        2.04    
PRN10  7.0    79.8        19.8        67.2        5.00        2.08    
PRN13  7.0    78.6        841.        62.1        5.00        2.09    
PRN14  7.0    80.4        27.8        57.0        5.00        2.29    
PRN15  6.6    3.71        542.        65.0        5.00        2.03    
PRN16  7.0    82.2        56.2        62.8        5.00        2.28    
PRN17  6.8    80.0       -178.        68.6        5.00        2.09    
PRN18  7.0    83.1        12.2        61.1        5.30        2.19    
PRN19  6.6    82.7        389.        63.6        5.93        1.98    
PRN21  7.0    81.1        32.2        59.2        5.15        2.32    
PRN22  7.0    79.5       -.474        61.1        5.00        2.24    
PRN23  7.0    79.6        11.2        64.2        5.16        2.41    
PRN24  6.7    81.5        829.        67.8        5.00        1.81    
PRN25  6.8    81.6       -7.31        60.7        5.19        1.97    
PRN26  7.0    92.2       -74.3        58.6        5.00        2.08    
PRN27  6.6    81.9        23.0        67.0        5.60        1.98    
PRN29  7.0    80.0        386.        56.0        5.00        2.29    
PRN30  7.0    80.6       -33.8        61.9        5.00        2.20    
PRN31  7.0    81.7        2.09        62.7        5.00        2.13    
_______________________
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
      98  4  5   98  4  6   98  4  7   98  4  8   98  4  9   98  4 10   98  4 11
prn   3d rss (cm)
  1     315        230        238        282        339        388        396   
  2     286        196        470        421        332        245        477   
  3     345        311        372        221        252        279        285   
  4     634        931        342        395        502        336        271   
  5     315        247        569        270        238        388        322   
  6     433        425        510        447        518        617        660   
  7     365        323        305        294        279        488        355   
  8    2802       2339       1099        348        532        574        217   
  9     403        573        310        287        293        382        397   
 10     215        489        490        400        605        380        254   
 13     300        344        426        291        416        210        208   
 14     877       1182        737        652        694       1138        682   
 15     418        426        496        432        373        410        461   
 16     340        318        751        348        472        314        383   
 17     259        315        321        293        333        372        299   
 18     370        311        616        454        595        379        511   
 19     192        397       1078        647        384        449       1121   
 21     248        262        299        274        204        212        268   
 22    1226        528        781        731        385        499        693   
 23     298        343        474        486        303        338        208   
 24     185        290        490        918       1033        538        340   
 25     360        327        389        446        390        268        280   
 26     466        304        166        269        514        376        306   
 27     768        768        701       1264        791        709        808   
 29     192        260        326        196        198        183        492   
 30     318        314        339        292        248        267        319   
 31     706        672        354        378        445        415        449   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo areq asc1 auck bahr barb bogt cas1 cice coco cro1 dav1 dgar eisl fair fort gala gol2 graz guam hark irkt kely kerg kit3 kokb kosg kwj1 lhas mac1 mad2 mag0 mali mate mcm4 mdvo mkea nico noto nrc1 ntus nyal onsa petr pol2 rcm6 reyk sant stjo tahi tid2 tskb usno usud wes2 wslr wtzr wuhn yar1 yell zeck

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