[IGSREPORT-8942] Wk 1147 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Mon Jan 14 11:39:02 PST 2002


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IGS Electronic Report   14 Jan 11:39:03 PST 2002      Message Number 8942
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Author: D C Jefferson

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JPL ANALYSIS REPORT GPS-WEEK 1147 (DYS 01.364-02.005, 2001 Dec 30 - 2002 Jan 05)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, 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/1147.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11477.sum         This text file.
jpl11477.erp         Earth rotation parameters for GPS week 1147.
jpl11477.snx         Ground station coordinates for GPS week 1147, SINEX format.
jpl1147[0-6].sp3     GPS ephemerides for GPS week 1147, sp3 format.
jpl1147[0-6].tro     Ground station troposphere estimates for GPS week 1147.
jpl1147[0-6].clk     GPS and ground station clocks for GPS week 1147, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 cm

According to the file ftp://tycho.usno.navy.mil/pub/gps/gpsnanu.2002, PRN24
was unusable from day 2001.365 through day 2002.007.  This satellite has
been excluded from our analyses according to the warnings below.

This week, we add two new candidate global stations.  As with other sites,
these sites are given the opportunity to participate in the orbit and clock
solution as the global site distribution varies.  The following nominal
coordinates were assumed:
                                       X (m)           Y (m)           Z (m)
BREW (Brewster, WA, USA)         -2112007.1251   -3705351.8830    4726827.2306
MANZ (Manzanillo, Colima, Mexico)  801913.3814   -6237949.7244    1058473.5355

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: Data from PRN15 and PRN17 excluded the entire GPS week 1147.
WARNING: Data from PRN26 excluded days 2001.365 and 2002.001.
WARNING: Data from PRN24 excluded days 2002.001-003 and 2002.005.
WARNING: Data from PRN14 excluded day 2002.005.
WARNING: Data from DRAG, LBCH, RIOG, RIOP, SSIA, WTZA excluded day 2001.364.
WARNING: Data from DUBR, LBCH, LHUE, PIMO, SOL1, WTZA excluded day 2001.365.
WARNING: Data from DUBR, GODE, HOLB, HOLM, LBCH, PIMO excluded day 2002.001.
WARNING: Data from CORD, DARW, DUBR, GODE, GRAZ, LBCH, MAD2, PIMO excluded day           2002.002.
WARNING: Data from DARW, GODE, IISC, LBCH, PIMO, RABT excluded day 2002.003.
WARNING: Data from DARW, GODE, LBCH, LHUE, MALI, WTZA excluded day 2002.004.
WARNING: Data from LBCH, PIMO, SLOR, WTZA excluded day 2002.005.

JPL REFERENCE CLOCK TABLE              GPS week 1147 (2001 Dec 30 - 2002 Jan 05)
 2001-12-30 USNO
 2001-12-31 USNO
 2002-01-01 USNO
 2002-01-02 USNO
 2002-01-03 USNO
 2002-01-04 USNO
 2002-01-05 USNO
END REFERENCE CLOCK TABLE

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 1147 (2001 Dec 30 - 2002 Jan 05)
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
52273.50 -176338  288598  -1309342  12344  38  44  163  163 42  0 25  -687  3412
52274.50 -176909  292279  -1320517  10005  40  49  172  172 42  0 24  -227  3356
52275.50 -177220  295951  -1329984   8929  39  46  151  151 42  0 23  -715  3829
52276.50 -177957  299478  -1338670   8443  36  40  104  104 42  0 24 -1181  3273
52277.50 -178708  302487  -1347097   8413  33  38  101  101 42  0 24  -941  3285
52278.50 -179358  305250  -1355124   7640  35  40   97   97 42  0 25  -921  3156
52279.50 -179792  308146  -1362425   6963  34  39  134  134 42  0 23 -1421  3107
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1147:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE          GPS week 1147 (2001 Dec 30 - 2002 Jan 05)
      01 12 30   01 12 31   02  1  1   02  1  2   02  1  3   02  1  4   02  1  5
prn   3d rss (cm)
  1       5          5          8          4         12          8          9   
  3       8          9         17         12         15         14          6   
  4       9          8          9          7          6          7          8   
  5       6          6          5          4          6          6          5   
  6       6          8          7          6          8          7          6   
  7       6          8          6          6          6          5          8   
  8      17         13         16         14          7         11         20   
  9       8          9         12          5          5          7          8   
 10       8         18         11         10          7          9          5   
 11       8          6          5          6          8         12          8   
 13       6          7         14         10         10         11         23   
 14       4          8          6         12         10         10              
 18       8         12         10          6          6          7          5   
 20       6          4          4          7          5          7          9   
 21       5         12         10          6          4         11          6   
 22      10          6          9          6          7          7          5   
 23       8         12         15          7          7         11          4   
 24       9          8                                                          
 25       7          7          8          7          8          8          4   
 26       5                               12         15          8          6   
 27       6          6         10         10          9          9         13   
 28      13          7          8         12         15         11          8   
 29       5          6          7          7          9         10          9   
 30       4          5          5          4          6          5          4   
 31       5          5          7          8         11         10         10   
_______________________
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 1147 (2001 Dec 30 - 2002 Jan 05)
 receiver/transmitter (* 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   1.0   0.677e-01  -0.467        56.0        5.00        3.35    
ALGO*  7.0   0.408e-01    1.76        35.2        4.00        3.34    
ALIC   1.0    42.1       0.330e-02    49.0        5.00        3.95    
ARTU   7.0    29.9      -0.907e-01    35.9        4.00        2.57    
AUCK*  5.5    26.9      -0.129        45.7        5.37        2.94    
BAHR*  7.0    1.17        931.        29.0        5.05        3.65    
BRUS   1.0   0.163       0.522        40.0        4.00        2.95    
CHAT*  0.9    23.1      -0.106        59.0        5.00        2.76    
CIC1   3.0    38.6      -0.206e-01    63.8        4.37        2.99    
CRO1   7.0   0.922e-01    323.        34.9        4.30        3.89    
DARW   4.0    30.2      -0.145        56.9        6.26        2.81    
DAV1*  7.0    17.8      -0.112e-01    50.5        4.00        1.27    
EISL   4.7    71.3      -0.113e-01    76.3        5.02        2.71    
FAIR*  6.9   0.487       0.811e-01    27.5        4.00       0.943    
FORT*  6.2    320.       0.856          .         5.45        1.24    
GALA   7.0    37.9      -0.121        30.6        4.45        3.30    
GUAM*  7.0    42.4      -0.158        53.8        6.89        4.07    
GUAT   1.0   0.291e+06    505.        66.0        5.00        1.63    
HARB   1.0    5.66        924.        66.0        5.00        2.26    
HILO   3.0    66.9      -0.160        50.7        5.06        3.05    
HOB2*  5.0   0.830e-01    3.10        46.9        5.43        3.42    
IISC   2.0    48.3      -0.114        57.0        6.00        2.94    
INEG   0.9   0.290e+06    6.48        62.0        3.00       0.864    
IRKT*  5.8   0.678       0.178        67.2        5.18        2.79    
JPLM   2.0    67.8        336.        69.4        3.51        3.11    
KELY   5.5    17.2      -0.721e-01    30.4        5.00        1.15    
KERG*  7.0    2.42        863.        63.5        5.44        2.52    
KOKB*  2.7   0.999        1.90        42.4        5.38        1.39    
KOUC   0.9    34.8      -0.154        40.0        5.00        4.11    
KUNM   1.8    103.      -0.458e-01    74.5        5.00        2.29    
KWJ1*  6.0   0.145e+07    197.        42.0        5.18       0.970    
LHAS*  3.8    19.4       0.284e-02    34.5        4.00        3.85    
MAC1*  5.5   0.135e+04  -0.113        31.2        3.72        1.94    
MAG0   4.9    23.1      -0.928e-01    39.2        4.63        2.68    
MALI*  5.6    477.        338.        71.9        7.00        2.63    
MAS1*  7.0    2.24        405.        42.6        5.04        2.96    
MAUI   1.0    62.1      -0.130        38.0        4.00        2.97    
MCM4*  1.8   0.166e+05    56.4        39.0        3.62        1.10    
MSKU   1.0    34.8      -0.130        36.0        6.00        2.95    
NKLG   5.9   0.275e+06    451.        70.5        6.34        1.71    
NOT1   3.0   0.125        978.        71.7        4.36        2.24    
NOUM   1.7   0.289e+06   -3.92        59.5        5.57       0.845    
NRIL   4.8    17.4      -0.857e-01    20.2        4.18        1.96    
NTUS   6.9    7.13      -0.122e-01    57.7        6.00        4.40    
NYA1   5.8   0.204      -0.164        28.6        3.00       0.962    
NYAL*  1.0   0.117      -0.208        36.0        4.00        1.07    
ONSA*  7.0   0.804e+04    221.        42.7        4.00        2.62    
PARC   4.0    17.3      -0.112        58.7        5.27        3.26    
PETP   2.0    29.9      -0.878e-01    45.5        6.00        2.76    
PIE1*  2.0   0.428e-01  -0.856        72.4        4.00        2.95    
PIMO   1.1    30.9      -0.152        23.0        5.00        1.90    
RIOG*  1.1    13.3      -0.126        33.5        4.00        1.30    
SANT*  7.0    23.2      -0.121        38.8        5.00        2.87    
SELE   3.0    38.8      -0.434e-02    70.6        3.00        2.81    
SIMO   5.9    122.      -0.931e-02    55.0        5.00        2.84    
SPT0   0.8   0.471        269.        43.0        4.00        2.40    
STJO   3.0    3.66      -0.317        27.4        4.00        3.45    
THTI   3.0    3.69        483.        74.4        6.68        2.21    
TIDB   7.0   0.136        97.9        25.0        6.03        3.74    
TLSE   0.9   0.465       0.609        64.0        4.00        2.64    
TOW2   1.0    11.8      -0.136e-01    21.0        7.00        3.80    
TRAB   1.0   0.910e+05    4.17        46.0        5.00        2.96    
TSKB*  6.6    1.31       -1.49        66.6        3.47        2.89    
USNO   6.7    .           .           40.0        4.00        3.54    
USUD   5.0   0.259        355.        30.2        4.62        3.73    
WHIT   1.0    48.3        14.8        42.0        4.00        2.64    
WTZR*  7.0   0.766e-01  -0.912        49.4        5.00        3.01    
WUHN   5.0    45.7      -0.124        76.2        5.62        3.98    
YAKT   1.0   0.762        124.        25.0        5.00        2.57    
YAR1*  6.8    32.8      -0.192        77.9        3.87        2.35    
YAR2   1.0    5.54      -0.116e+05    26.0        4.00        3.56    
YELL*  6.9   0.931e-01   0.207        37.0        4.00        1.47    
PRN01  6.7    5.17        210.        49.1        5.00        2.17    
PRN03  7.0    2.54        97.3        52.6        5.00        2.22    
PRN04  7.0   0.956        324.        47.6        5.00        2.28    
PRN05  7.0    3.15        331.        47.9        4.74        2.41    
PRN06  7.0    9.63       -2.07        48.8        5.00        2.21    
PRN07  7.0    1.91        669.        50.3        4.87        2.40    
PRN08  7.0    3.86        664.        51.3        4.87        2.15    
PRN09  7.0    2.86       -24.0        47.2        5.00        2.22    
PRN10  7.0    2.77        16.3        51.4        5.00        2.39    
PRN11  7.0   0.415        6.80        49.8        5.00        2.23    
PRN13  7.0   0.325      -0.852        51.5        5.16        2.15    
PRN14  6.0   0.340       -113.        49.0        5.18        2.32    
PRN18  7.0   0.462       -75.7        48.2        5.00        2.43    
PRN20  7.0   0.258       -127.        50.2        5.00        2.40    
PRN21  7.0    3.26        5.03        46.6        5.00        2.37    
PRN22  7.0    1.30        546.        52.5        5.15        2.33    
PRN23  7.0    6.80        3.74        50.5        5.00        2.31    
PRN24  1.8    1.82        15.2        48.7        4.91        2.23    
PRN25  7.0    2.26        21.3        48.4        5.00        2.48    
PRN26  4.8   0.924       -24.8        47.5        5.00        2.16    
PRN27  7.0    5.05        6.79        49.7        4.59        2.29    
PRN28  7.0   0.999       -51.9        51.3        4.60        2.20    
PRN29  6.7   0.765        574.        48.7        5.60        2.26    
PRN30  7.0    1.97        283.        46.9        4.87        2.37    
PRN31  7.0    4.77        84.3        52.2        5.00        2.21    
_______________________
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
      01 12 30   01 12 31   02  1  1   02  1  2   02  1  3   02  1  4   02  1  5
prn   3d rss (cm)
  1     668        458        459        522        630        583        716   
  3     257        413        308        318        218        316        410   
  4     345        222        145        207        284        408        327   
  5     250        248        186        279        270        249        412   
  6     572        598        696        650        650        587        578   
  7     384        243        160        340        384        233        187   
  8     323        304        266        255        283        361        323   
  9     409        270        266        355        437        272        332   
 10     251        394        365        510        449        319        356   
 11     560        561        369        353        302        346        334   
 13     250        235        238        215        250        216        336   
 14     352        295        202        319        198        274              
 18     215        247        196        252        339        256        330   
 20     174        206        324        458        352        225        314   
 21     414        329        644        517        197        498       1480   
 22     267        325        538        336        574        396        624   
 23     556        544        586        578        890        498        742   
 24     290        296                                           0              
 25     370        529        334        500        649        270        418   
 26     235                              334        224        314        324   
 27     341        296        387        281        425        441        406   
 28     281        163        214        199        504        244        684   
 29     708        360        451        707        384        644        868   
 30     162        192        186        223        184        168        134   
 31     430        650        491        504        417        568        427   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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