[IGSREPORT-8544] Wk 1126 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Wed Aug 22 09:50:29 PDT 2001


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IGS Electronic Report   22 Aug 09:50:29 PDT 2001      Message Number 8544
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1126 (DAYS 217-223, DATES 2001 Aug 05 - Aug 11)
******************************************************************************

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/1126.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11267.sum         This text file.
jpl11267.erp         Earth rotation parameters for GPS week 1126.
jpl11267.snx         Ground station coordinates for GPS week 1126, SINEX format.
jpl1126[0-6].sp3     GPS ephemerides for GPS week 1126, sp3 format.
jpl1126[0-6].tro     Ground station troposphere estimates for GPS week 1126.
jpl1126[0-6].clk     GPS and ground station clocks for GPS week 1126, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 6.0 cm

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)
CHUM (Chumysh, Kazakhstan)     1228950.9068    4508080.0237    4327868.5767
POLV (Poltava, Ukraine)        3411557.4717    2348463.9765    4834396.8848 

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 PRN19 excluded the entire GPS week 1126.
WARNING: Data from PRN22 excluded day 219.
WARNING: Data from PRN24 excluded day 221.
WARNING: Data from CHAT, ESTI, HFLK, HILO, MAUI, WLSN, YAR1 excluded day 217.
WARNING: Data from BJFS, HARV, HILO, HOLP, KODK, LBCH, MAG0, MAUI, PTBB, WLSN,           YAR1 excluded day 218.
WARNING: Data from BJFS, HFLK, HILO, HOLP, LBCH, WLSN, YAR1 excluded day 219.
WARNING: Data from BJFS, HOLP, KELY, LBCH, TORP, WLSN excluded day 220.
WARNING: Data from DAEJ, GOLD, LAE1, LBCH, NLIB, TORP, TRAB, WLSN excluded day           221.
WARNING: Data from BLYT, DRAG, HILO, HOLP, LBCH, MEDI, NLIB, TORP, WLSN                  excluded day 222.
WARNING: Data from DRAG, HILO, HOLP, KELY, LBCH, NLIB, WLSN excluded day 223.

JPL REFERENCE CLOCK TABLE                   GPS week 1126 (2001 Aug 05 - Aug 11)
 2001-08-05 NRC1
 2001-08-06 NRC1
 2001-08-07 NRC1
 2001-08-08 NRC1
 2001-08-09 NRC1
 2001-08-10 NRC1
 2001-08-11 NRC1
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 1126 (2001 Aug 05 - Aug 11)
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
52126.50  224777  204576   -402473   -914  31  37  122  122 42  0 27 -2055 -2669
52127.50  222821  202129   -401541   -949  31  37  130  130 42  0 27 -1963 -2783
52128.50  220748  199817   -400860   -413  30  36  123  123 42  0 26 -2216 -2404
52129.50  218377  197722   -400683     59  30  36  120  120 42  0 27 -2666 -2326
52130.50  215670  195438   -400889    353  32  39  128  128 42  0 26 -2815 -2282
52131.50  212782  192943   -401774   1417  31  36  155  155 42  0 27 -2776 -2392
52132.50  209761  190322   -403745   2525  31  36  155  155 42  0 27 -2566 -2890
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1126:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1126 (2001 Aug 05 - Aug 11)
      01  8  5   01  8  6   01  8  7   01  8  8   01  8  9   01  8 10   01  8 11
prn   3d rss (cm)
  1       7          3          5          4          8          3          9   
  2       4          6          4          7          7          5          8   
  3       7          8          6         10          6          4          6   
  4       6          7          9          6          8          7         12   
  5       6          4          4          4          7         10         12   
  6       6          3          3          3          7          6          3   
  7       4          4          5          5          4          5          8   
  8       7          5          6          5          5          7          8   
  9       5          5          5          6         10          8         10   
 10       7          4          6          5          8          7          7   
 11       9          9          9          6         14         17          7   
 13      11          6          8          6          7          4          7   
 14       4          5          4          6          4          6          3   
 17      11          7          4          6          8          9          8   
 18      14         15          4          5         10          6          5   
 20      10          5          6          5          8          5          7   
 21       8          9          9         14         23          7          4   
 22      16          6                    13          5          8          8   
 23      13         12          8          7          7         11          8   
 24       9          6          8          3                     4         23   
 25       6          5          6          4          6          7          5   
 26       7          8          6          7          8          7          7   
 27      11          8          6          5          7          5          9   
 28       6          5          5          6          5          7          9   
 29       5          7          4          5          5          4          4   
 30       6          3          4          2          6          5          4   
 31      13         11          9         11         10          8          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 1126 (2001 Aug 05 - Aug 11)
 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   0.123        1.01        36.5        5.34        3.55    
AREQ   3.0    28.4        112.        26.7        4.00        3.28    
ARTU   6.0    12.3      -0.816e-01    35.0        4.36        2.58    
AUCK*  3.0    20.4      -0.324e-02    41.7        4.68        2.85    
BAHR*  7.0   0.668        764.        35.0        5.00        3.80    
BILI   7.0    12.2      -0.849e-01    41.0        5.45        2.71    
CAS1*  3.0    8.89       0.454e-03    27.7        4.00        1.18    
CHAT*  3.6    23.0      -0.556e-02    60.4        5.00        2.76    
CHUM   1.0    24.7      -0.596e-02    54.0        7.00        3.28    
CIC1   4.0    44.8      -0.122e-01    43.0        4.27        2.85    
CRO1   7.0   0.390        737.        37.3        5.30        3.53    
DAV1*  2.6    21.9      -0.104e-01    29.3        3.71        1.43    
EISL   6.9    433.      -0.220e-01    58.7        4.88        2.42    
FAIR*  6.1    2.29       -5.15          .         3.16       0.806    
FORT*  7.0    680.        5.39        81.2        4.87        1.86    
GALA   4.0    18.6      -0.879e-01    36.1        4.00        3.78    
GOUG   0.8   0.289e+06    525.        51.0        4.00        3.00    
GUAM*  7.0    21.8      -0.119        57.5        6.87        3.41    
HARB   3.0    6.13        923.        46.3        4.00        2.73    
HRAO   4.0    25.7      -0.766e-01    70.7        4.00        3.84    
IISC   6.5    30.8      -0.108        54.7        5.92        2.89    
INEG   0.9   0.288e+06    9.98        56.0        5.00       0.854    
IRKT*  6.9    21.0       0.697e-01    60.4        5.00        2.16    
JAB1   1.0    27.4      -0.886e-01    38.0        5.00        3.71    
JPLM   2.0    13.6        152.        47.0        4.00        2.62    
KELY   3.3   0.688e+04  -0.801        33.8        5.00        1.48    
KERG*  7.0    1.55        17.5        53.0        5.15        2.47    
KODK   4.0    13.6      -0.711e-01    40.4        4.77        3.00    
KOKB*  7.0    4.60       0.986        50.8        5.00        1.18    
KOUR*  0.5    17.3      -0.948e-01    40.0        5.00        2.84    
KUNM   6.0    51.5      -0.232e-01    75.5        5.87        2.45    
LAE1   5.9    21.2      -0.114        60.8        6.33        3.95    
LHAS*  1.0    11.8      -0.393e-02    32.0        5.00        3.96    
MAC1*  1.8    14.1      -0.176e-02    32.5        4.00        2.08    
MAD2   2.9    213.      -0.531        40.7        5.00        2.57    
MALI*  3.9    39.3        297.        67.8        7.00        2.47    
MAS1*  4.0    2.55        59.2        44.3        4.27        2.85    
MCM4*  6.3   0.435e+04    4.77        47.0        4.72        1.24    
METS   1.0   0.220        969.        47.0        5.00        2.51    
MSKU   3.0    35.3      -0.881e-01    34.0        5.00        3.77    
NKLG   4.0   0.277e+06    515.        69.3        6.26        1.62    
NRC1   7.5    .           .           43.6        5.19        3.44    
NRIL   6.0    9.58      -0.818e-01    21.7        4.89        2.40    
NTUS   7.0    7.13      -0.144e-01    62.9        7.02        4.33    
NYA1   4.7    440.       -1.05        32.3        4.31        1.52    
NYAL*  1.9   0.198       0.175        45.2        4.00        2.15    
OHIG*  7.0    13.8      -0.272e-02    55.0        4.60        2.37    
ONSA*  7.0    1.24        318.        42.9        5.00        2.62    
PERT*  1.0    21.7      -0.626e-01    60.0        5.00        3.22    
PIMO   5.9    26.0      -0.625e-02    54.5        4.54        1.09    
REYK   1.0    10.0       0.414e-03    58.0        6.00        2.08    
SANT*  6.9    17.7      -0.765e-01    20.9        5.00       0.997    
SCIP   0.7    27.2      -0.868e-01    35.0        4.00        3.03    
SELE   4.0    477.       0.316e-02    46.2        4.00        3.13    
SEY1   3.0    43.2      -0.815e-02    75.0        6.00        1.95    
SLOR   0.9   0.288e+06    490.        70.0        6.00        1.77    
SSIA   1.9   0.289e+06    496.        81.0        6.00        1.62    
SYOG   4.0   0.775        286.        40.5        4.77        1.95    
THTI   7.0    4.51        649.        81.7        6.15        2.07    
TIDB*  7.0   0.171        318.        28.4        5.45        3.70    
TRAB   1.0   0.910e+05    5.77        44.0        5.00        2.92    
TSKB*  7.0    1.13       -1.68        53.3        4.31        2.96    
USUD   3.0   0.599        415.        31.3        5.68        3.42    
WTZR*  7.0   0.219      -0.567        46.7        5.59        3.12    
WUHN   1.0    24.2      -0.103        59.0        6.00        3.63    
YAR1*  2.3    696.      -0.287        70.2        3.65        1.25    
YAR2   2.9    4.45      -0.116e+05    32.3        4.09        3.37    
YELL*  7.0   0.104        1.00        44.7        5.16        1.84    
PRN01  7.0    4.19        189.        47.7        5.00        2.16    
PRN02  7.0    3.19       -56.0        51.9        5.00        2.35    
PRN03  7.0    2.44        54.8        50.3        5.00        2.24    
PRN04  6.8   0.841        618.        50.6        5.30        2.36    
PRN05  7.0    2.80        309.        49.5        5.15        2.47    
PRN06  7.0    7.47       -2.42        45.4        5.00        2.25    
PRN07  7.0    1.60        429.        50.3        5.15        2.46    
PRN08  7.0    3.03        462.        49.9        5.00        2.20    
PRN09  7.0    1.96       -1.85        48.4        5.00        2.10    
PRN10  7.0    2.80        8.23        53.2        5.15        2.46    
PRN11  7.0   0.428        3.26        51.4        5.15        2.11    
PRN13  7.0   0.380       -3.96        51.3        5.00        2.25    
PRN14  7.0   0.362       -120.        51.0        5.00        2.41    
PRN17  6.6    4.98        340.        53.3        5.00        2.11    
PRN18  7.0   0.504       -73.7        48.9        5.00        2.25    
PRN20  7.0   0.318       -89.5        48.7        5.15        2.36    
PRN21  7.0    3.12        4.57        51.9        5.00        2.31    
PRN22  5.9    342.       -19.7        51.4        4.59        2.10    
PRN23  7.0    5.79        17.8        50.2        5.16        2.32    
PRN24  5.7    2.25        71.0        49.7        5.38        2.44    
PRN25  7.0    1.88        16.2        48.6        5.00        2.49    
PRN26  7.0   0.652        556.        50.5        5.00        2.23    
PRN27  7.0    5.39        29.8        51.0        5.00        2.10    
PRN28  7.0    1.09       -10.2        50.7        5.00        2.30    
PRN29  7.0   0.759        625.        50.4        5.00        2.31    
PRN30  7.0    1.49       -30.6        48.5        5.00        2.34    
PRN31  7.0    3.30        57.3        51.9        5.00        2.24    
_______________________
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  8  5   01  8  6   01  8  7   01  8  8   01  8  9   01  8 10   01  8 11
prn   3d rss (cm)
  1     584        397        483        560        635        692        542   
  2     388        272        215        231        182        154        319   
  3     369        216        254        308        612        518        438   
  4     662        798        470        675        649        604        383   
  5     266        305        309        265        238        184        188   
  6     586        512        449        502        411        391        630   
  7     418        196        221        280        341        405        328   
  8     308        300        373        242        158        226        383   
  9     318        233        188        245        358        223        306   
 10     528        318        293        453        368        300        395   
 11     572        601        283        313        508        504        356   
 13     345        350        185        202        333        439        332   
 14     238        277        214        188        269        214        229   
 17     842        486        316        256        278       1519        549   
 18     264        814        379        654        191        191        312   
 20     317        395        382        224        229        227        357   
 21     759        588        741        520       2006        574        903   
 22     269        291                   274        835        424        289   
 23     625        336        474        571        507        477        508   
 24    1486        690        264        518                   651        496   
 25     294        448        408        447        326        332        462   
 26     276        635        495        280        157        404        481   
 27     417        318        406        302        282        548        318   
 28     212        411        536        229        397        366        531   
 29     407        200        166        140        231        272        171   
 30     304        226        565        469        281        357        360   
 31     239        180        198        282        261        524        515   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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