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[IGSREPORT-11366] Wk 1271 JPL Analysis Report



******************************************************************************
IGS Electronic Report   28 May 20:41:18 PDT 2004      Message Number 11366
******************************************************************************

Author: Y Vigue-Rodi

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 1271 (DAYS 137-143, DATES 2004 May 16 - May 22)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

Y E Bar-Sever, M B Heflin, B J Newport, Y Vigue-Rodi, F H Webb, J F Zumberge,   and D C Jefferson

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/1271.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl12717.sum         This text file.
jpl12717.erp         Earth rotation parameters for GPS week 1271.
jpl12717.snx         Ground station coordinates for GPS week 1271, SINEX format.
jpl1271[0-6].sp3     GPS ephemerides for GPS week 1271, sp3 format.
jpl1271[0-6].sp3c    GPS ephemerides for GPS week 1271, sp3c format.
jpl1271[0-6].tro     Ground station troposphere estimates for GPS week 1271.
jpl1271[0-6].clk     GPS and ground station clocks for GPS week 1271, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 4.0 cm

A clock discontinuity (reset) of about 347.6 microseconds was detected for PRN17
at approximately 18:15 on day 140.

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 PRN30 excluded day  137.
WARNING: Data from PRN06 excluded day  138.
WARNING: Data from PRN16 excluded days 141 and 142.
WARNING: Data from PRN18 excluded day  137.
WARNING: Data from PRN19 excluded day  143.
WARNING: Data from PRN20 excluded day  142.

JPL REFERENCE CLOCK TABLE                   GPS week 1271 (2004 May 16 - May 22)
 2004-05-16 AMC2
 2004-05-17 AMC2
 2004-05-18 AMC2
 2004-05-19 AMC2
 2004-05-20 AMC2
 2004-05-21 AMC2
 2004-05-22 AMC2
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 1271 (2004 May 16 - May 22)
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
53141.50 -100436  445034  -4771806   6811  21  24  131  131 80  0 26   558  1322
53142.50 -100018  446406  -4778823   7223  21  24  128  128 80  0 27   627  1214
53143.50  -99321  447753  -4785967   7066  20  23  122  122 80  0 28   650  1376
53144.50  -98377  448982  -4792821   6643  20  22  121  121 80  0 28  1291  1590
53145.50  -96921  450442  -4799521   6756  22  25  125  125 80  0 27  1425  1714
53146.50  -95698  451924  -4805886   5974  22  24  125  125 80  0 26  1173  1441
53147.50  -94720  453062  -4811203   4661  21  23  118  118 80  0 27   967  1035
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1271:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1271 (2004 May 16 - May 22)
      04  5 16   04  5 17   04  5 18   04  5 19   04  5 20   04  5 21   04  5 22
prn   3d rss (cm)
  1     4.2        3.4        3.7        2.9        2.7        4.0        3.5   
  3     5.1        4.4        5.0        4.2        6.3        7.5        7.4   
  4     4.2        2.4        4.8        5.9        2.2        6.0        5.9   
  5     3.1        2.5        2.5        1.7        3.9        2.1        3.3   
  6     4.7                   6.3        4.2        7.9        3.8        5.7   
  7     4.2        4.0        3.9        2.1        1.9        3.8        3.5   
  8     4.7        3.9        3.8        3.0        3.0        3.8        2.1   
  9     5.8        3.1        7.5        3.3        4.4        3.4        5.6   
 10     4.6        3.3        4.0        2.3        2.0        6.0        4.9   
 11     6.8        5.9        6.5        7.2        5.4        7.6        4.3   
 13     7.3        3.4        5.8        3.3        5.1        6.7        4.9   
 14     9.2        8.3        6.8        6.8        9.7        5.5        6.6   
 15     4.7        5.4        5.5        4.8        9.4        8.5        8.5   
 16     5.0        7.2        4.7        2.7                              3.5   
 17     3.3        2.1        3.4        5.8        3.0        2.8        2.6   
 18                4.2        4.8        2.6        2.6        4.0        3.9   
 19    17.8       17.0       16.9       13.8       13.8       19.8              
 20     3.7        3.3        4.0        4.4        1.8                   4.2   
 21     3.7        6.0        3.9        6.3        6.5        5.6        4.3   
 22     6.7        8.4        9.4        4.8        6.8        8.5        6.1   
 24     4.3        3.4        2.4        1.9        2.7        3.1        2.7   
 25     5.2        3.7        3.8        2.7        4.7        7.0        7.2   
 26     3.7        5.6        3.7        3.3        3.8        2.8        2.5   
 27     4.7        3.5        4.6        3.4        4.0        2.6        3.4   
 28     3.4        3.8        3.7        1.9        3.4        4.0        4.0   
 29     2.5        6.1        3.8        2.7        5.0        2.7        3.5   
 30                4.0        3.3        1.8        2.5        3.2        2.6   
 31     6.3        5.9        5.9        4.4        2.7        3.4        3.9   
_______________________
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 1271 (2004 May 16 - May 22)
 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)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALGO*  7.0   0.666e-01    3.91        38.5        4.64        3.53    
ALIC   4.0    11.1      -0.796e-01    53.0        5.00        3.27    
ALRT   6.0    7.29      -0.639e-01    14.5        3.70        2.49    
AMC2   7.4    .           .           40.7        6.00        3.20    
ARTU   7.0    11.3      -0.739e-01    22.0        5.15        2.53    
ASC1*  4.0   0.692e+07   0.164e+05    75.4        5.75        3.23    
ASPA   6.9   0.288e+06    8.37        41.4        7.00        3.88    
AUCK*  6.4    12.5      -0.744e-01    46.2        4.15        3.30    
BAN2   1.0    15.9      -0.208e-01    65.0        7.00        2.09    
BILI   6.9    9.71      -0.832e-01    40.6        5.00        2.90    
BJFS   6.0    12.1      -0.677e-01    36.7        5.37        3.81    
BOGT   6.9   0.661e+04  -0.601e-01    43.9        6.92        3.23    
BOR1   1.0   0.490       0.624e-01    47.0        4.00        2.44    
BRAZ   4.8   0.287e+06    523.        55.8        5.81        1.96    
BRMU   5.6   0.288e+06   -10.3        41.8        5.33        3.69    
BRST   0.9   0.289e+06    507.        45.0        5.00        1.98    
CAGZ   1.0   0.289e+06   -21.0        53.0        5.00        3.07    
CAS1*  7.0    8.18      -0.125e-02    28.1        4.00        1.46    
CEDU*  3.0    11.2      -0.542e-02    39.0        4.36        3.33    
CHAT*  6.7    12.6      -0.635e-01    58.7        5.00        2.99    
CHUR   1.0    6.11       -39.4        26.0        4.00        1.91    
COCO   7.0    8.74      -0.883e-02    25.7        5.15        3.60    
CRO1   6.8    18.1      -0.762e-01    37.2        5.73        3.53    
DAEJ   2.0    2.73        265.        96.0        5.51        2.42    
DARR   3.0   0.297e+06    3.97        45.0        6.00        3.76    
DARW   4.0    9.72        442.        54.8        6.00        3.84    
DAV1*  7.0    15.0      -0.580e-02    31.6        3.75        1.42    
DUBO   7.0    15.1       0.429e-02    55.3        4.16        2.70    
DWH1   7.0   0.587       0.206e-01    47.6        6.16        2.77    
EURK   1.0    249.       -4.73        55.0        5.00        2.64    
FAIR   5.0   0.920e-01    942.        27.0        5.00        2.59    
FORT*  5.9   0.180       0.830        82.2        6.19        2.10    
GMAS   5.0    1.82        68.6        68.2        6.00        2.17    
GOUG   4.4   0.289e+06    506.        60.4        5.78        2.57    
GUAM   7.0    14.4      -0.934e-01    59.9        6.72        3.52    
GUAO   5.0    11.8      -0.592e-01    37.0        5.22        3.19    
GUAT   5.8   0.287e+06    493.        56.9        5.54        1.79    
HARV   3.6    68.3      -0.427e-02    55.3        5.00        3.37    
HOB2*  3.0   0.665e-01    3.08        33.0        6.35        3.51    
HRAO*  7.0   0.692        979.        17.2        4.15        3.58    
IISC   6.0    22.6      -0.915e-01    55.3        6.00        3.55    
IRKJ   1.0   0.799e-01   -253.        53.0        6.00        2.61    
IRKT*  2.6    50.6       0.155        59.7        5.17        1.67    
ISPA   6.8    16.9      -0.734e-01    26.3        5.46        3.34    
ISTA   3.0   0.109e+06    8.44        23.3        4.35        3.44    
KARR   6.0    13.9      -0.646e-01    50.0        5.34        2.65    
KELY   3.5    10.7      -0.625e-01    34.0        5.16        1.80    
KERG*  6.8   0.305e+05    429.        52.7        5.31        3.17    
KGN0   2.0   0.450      -0.626e-01    59.1        5.51        3.56    
KIR0   1.0    5.76      -0.128e-01    46.0        5.00        2.26    
KIT3*  2.8    26.1      -0.539e-02    43.4        5.67        3.17    
KODK   0.9    11.5      -0.707e-01    59.0        6.00        2.73    
KOU1   5.8   0.289e+06    4.44        53.7        6.35        4.00    
KOUR*  1.0    1.25        738.        27.0        6.00        4.67    
KSTU   1.8    11.7      -0.286e-02    50.5        5.51        2.71    
KUNM   7.0    28.2      -0.598e-03    73.8        6.73        2.38    
LAE1   5.0    15.4      -0.895e-01    62.4        6.40        3.59    
LHAS*  1.9   0.560e+05  -0.833e+04    37.0        5.00        1.34    
LHAZ   5.0   0.288e+06   -10.0        39.4        5.00        3.51    
LHUE   7.0    32.0      -0.116        38.1        5.76        3.42    
LPGS*  4.9    50.3      -0.856e-02    59.4        5.00        3.25    
MAC1*  7.0    12.4      -0.359e-02    35.3        3.87        2.41    
MADR   5.0    15.9      -0.661e-01    37.5        6.00        2.72    
MAG0   1.0    9.75      -0.763e-01    46.0        5.00        2.66    
MANA   0.9   0.289e+06    511.        67.0        6.00        2.08    
MAS1*  2.0    2.71        144.        25.0        4.00        3.13    
MBAR   7.0    24.5      -0.868e-01    36.6        6.00        4.09    
MCM4*  7.0   0.417e+05    235.        68.3        3.77        1.47    
MDVJ   0.9   0.464e-01    486.        59.0        6.00        2.09    
MIZU   1.0   0.320      -0.424e-01    45.0        5.00        3.27    
MOBN   2.0    13.0      -0.656e-01    39.1        5.00        2.98    
NLIB*  2.0   0.579e-01    1.07        41.0        5.51        2.62    
NOT1   6.0   0.289e+06    503.        48.7        5.69        2.34    
NOUM   7.0   0.289e+06  -0.364        48.3        6.00        4.03    
NPLD   2.0   0.759e-01   -8.15        53.5        4.53        2.69    
NRIL   7.0    10.0      -0.772e-01    27.4        4.31        2.66    
NSSP   6.9    13.7      -0.650e-01    53.0        4.31        3.11    
NTUS   7.0    9.61      -0.920e-02    58.9        7.30        3.82    
NYA1   3.0    8.03      -0.275        49.4        4.00        1.91    
ONSA*  7.0   0.385e+04    18.1        38.6        4.46        2.39    
PDEL   6.0    54.4      -0.122e-01    40.8        5.53        3.25    
PERT*  6.0    3.58        972.        42.7        5.33        3.64    
PETP   6.0    10.8      -0.736e-01    48.0        6.00        2.82    
PIMO   6.3    17.6      -0.946e-01    29.7        6.88        1.38    
POL2   3.0    14.0      -0.680e-01    31.0        4.36        3.36    
POLV   4.0   0.288e+06    3.24        45.5        5.28        3.14    
QAQ1   2.0    10.7      -0.617e-01    48.0        4.54        2.18    
RAMO   5.7    23.0      -0.883e-01    57.9        5.00        3.18    
RESO   2.0    8.57      -0.503e-01    50.5        4.00        1.85    
REYK   6.9    7.64      -0.490e-02    46.3        6.00        2.27    
RIOG*  4.7    10.1      -0.779e-01    33.0        4.00        2.52    
SACH   7.0    9.09      -0.659e-01    50.9        4.00        1.93    
SANT*  7.0    8.77        954.        21.5        5.16        3.59    
SCH2   7.0    170.        32.7        30.9        4.16        3.00    
SCUB   3.9    15.3      -0.934e-01    49.5        6.80        3.53    
SELE   0.8    37.5      -0.127e-01    38.0        4.00        2.72    
SEY1   3.9    156.      -0.657e-01    76.3        6.76        2.66    
SFER   1.0   0.513        951.        40.0        5.00        2.21    
SNI1   2.9    21.0      -0.699e-01    36.3        4.36        3.31    
SOFI   1.0    93.5      -0.118e-01    36.0        4.00        3.59    
STJO   7.0   0.511e-01  -0.351e-01    33.7        4.31        3.71    
SUWN   0.9    1.19        835.        49.0        5.00        3.00    
SYOG   7.0    1.21        161.        45.9        5.00        2.08    
TCMS   1.0    57.4      -0.244e-01    40.0        6.00        3.67    
THTI   7.0   0.104e+06    615.        60.7        6.16        4.03    
TID1   4.0   0.593e-01   -2.35        32.3        5.05        3.74    
TIXI   5.0   0.532e+05  -0.339e-01    41.5        4.00        2.60    
TOW2   7.0    11.8      -0.740e-01    38.9        4.30        3.83    
TRO1   6.0    8.79      -0.530e-02    52.9        6.18        2.10    
TSKB*  6.0    1.72       0.207        28.0        5.18        3.83    
TWTF   4.5   0.394       0.291        58.1        5.99        3.71    
UNSA   1.5    14.5       0.844e-03    48.0        5.70        3.62    
VESL   5.5   0.288e+06    505.        45.3        4.00        2.01    
WHIT   1.0    1.92        184.        35.0        4.00        2.68    
WTZA   1.0   0.280       -9.06        46.0        5.00        3.16    
WTZR*  5.9    128.       0.295        45.8        5.33        3.17    
WUHN   1.9    17.9      -0.821e-01    77.6        6.50        3.86    
YAKT   7.0    1.08        819.        35.9        5.88        2.70    
YAR2   1.0    6.51       -1.19        30.0        4.00        3.89    
YEBE   1.0   0.287        61.9        38.0        5.00        2.25    
YELL*  7.0   0.866e-01   0.364        37.0        4.16        2.04    
YIBL   1.9    22.1      -0.767e-01    59.0        4.00        3.51    
YKRO   7.0    39.7      -0.689e-03    66.9        5.63        1.78    
YSSK   6.0    9.93      -0.826e-01    47.5        4.19        3.08    
PRN01  6.8    4.65        344.        44.6        5.00        2.78    
PRN03  7.0    2.08        11.7        45.4        5.00        2.58    
PRN04  7.0   0.866       -149.        45.5        5.00        2.84    
PRN05  7.0    2.29        30.8        44.7        5.00        2.76    
PRN06  6.0    2.29        13.3        44.4        5.00        2.65    
PRN07  7.0   0.847        538.        47.2        5.00        2.88    
PRN08  7.0    2.28      -0.354        46.1        5.00        2.85    
PRN09  7.0    2.30       -45.0        43.7        5.00        2.66    
PRN10  7.0    2.28        44.2        48.8        5.00        2.62    
PRN11  7.0   0.439        118.        48.4        5.00        2.72    
PRN13  7.0   0.325       -28.5        49.3        5.73        2.79    
PRN14  7.0   0.315       -20.2        46.9        5.59        2.89    
PRN15  7.0    3.71        268.        46.1        5.15        2.73    
PRN16  5.0   0.267        11.9        47.0        5.00        2.71    
PRN17  6.9   0.324e+05    202.        47.9        5.00        2.63    
PRN18  6.0   0.588       -36.4        46.0        5.18        2.68    
PRN19  6.0   0.540       -51.4        54.5        6.68        2.67    
PRN20  6.0   0.315       -162.        47.0        5.00        2.80    
PRN21  7.0   0.413        75.7        47.8        5.00        2.68    
PRN22  7.0    1.05        3.78        45.2        6.30        2.74    
PRN24  7.0    3.03        27.9        46.9        5.00        2.91    
PRN25  7.0    2.65        67.0        45.1        5.00        2.86    
PRN26  6.7   0.861        79.6        44.7        5.00        2.41    
PRN27  7.0   0.933        196.        46.3        5.00        2.93    
PRN28  7.0   0.721        32.0        46.6        5.00        2.77    
PRN29  6.7   0.644        233.        46.2        5.00        2.41    
PRN30  6.0   0.813        536.        43.0        5.00        2.72    
PRN31  7.0    2.28        167.        46.0        5.59        2.72    
_______________________
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
      04  5 16   04  5 17   04  5 18   04  5 19   04  5 20   04  5 21   04  5 22
prn   3d rss (cm)
  1     651        466       1013        650        789        750        854   
  3     309        276        307        230        280        240        236   
  4     261        223        202        238        224        185        186   
  5     321        276        316        220        192        221        204   
  6     276                   289        292        251        228        342   
  7     329        407        451        350        491        328        433   
  8     286        263        390        412        234        174        163   
  9     176        168        316        194        294        190        271   
 10     383        258        292        204        300        386        265   
 11     196        202        201        208        240        300        218   
 13     302        230        218        525        199        215        239   
 14     259        194        208        344        339        245        495   
 15     231        340        293        459        147        178        326   
 16     319        256        236        265                              406   
 17     486        407        253        176        293        312        221   
 18                181        181        227        261        236        287   
 19     288        309        280        333        412        204              
 20     211        211        243        215        208                   226   
 21     518        327        365        267        345        475        505   
 22     297        182        394        460        212        264        328   
 24     775       1022        426        591       1076        336        535   
 25     300        237        290        237        262        245        273   
 26     261        417        261        191        293        259        242   
 27     308        297        219        170        165        208        160   
 28     351        304        251        253        238        272        290   
 29     257        208        336        331        322        392        275   
 30                263        191        191        259        241        302   
 31     365        291        319        515        311        392        309   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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