[IGSREPORT-8259] Wk 1112 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Fri May 11 10:06:00 PDT 2001


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IGS Electronic Report   11 May 10:06:01 PDT 2001      Message Number 8259
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1112 (DAYS 119-125, DATES 2001 Apr 29 - May 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/1112.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11127.sum         This text file.
jpl11127.erp         Earth rotation parameters for GPS week 1112.
jpl11127.snx         Ground station coordinates for GPS week 1112, SINEX format.
jpl1112[0-6].sp3     GPS ephemerides for GPS week 1112, sp3 format.
jpl1112[0-6].tro     Ground station troposphere estimates for GPS week 1112.
jpl1112[0-6].clk     GPS and ground station clocks for GPS week 1112, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 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: Data from PRN15 and PRN17 excluded the entire GPS week 1112.
WARNING: Data from ASC1, BARH, DAV1, GRAZ, HARB, HRAO, INEG, KARR, KERG, KOUR,           LPGS, MALI, MAW1, NKLG, SUTH, SYOG, WTZT, WUHN excluded day 119.
WARNING: Data from CIC1, DAV1, HARB, HRAO, IISC, INEG, KARR, KERG, LPGS, MALI,           MATE, MAW1, NKLG, REYK, SEY1, SUTH, SYOG, WTZT, WUHN excluded day 120.
WARNING: Data from IISC, JAB1, LBCH, WTZT, WUHN excluded day 121.
WARNING: Data from GOPE, IISC, JAB1, KELY, NICO, SANT, WTZT excluded day 122.
WARNING: Data from BILL, HOLC, JAB1, KOUR, WTZT excluded day 123.
WARNING: Data from BILL, EPRT, HOLC, LBCH, MEDI, SANT excluded day 124.
WARNING: Data from BILL, HOLC, LBCH excluded day 125.

JPL REFERENCE CLOCK TABLE                   GPS week 1112 (2001 Apr 29 - May 05)
 2001-04-29 NRC1
 2001-04-30 USNO
 2001-05-01 USNO
 2001-05-02 USNO
 2001-05-03 NRC1
 2001-05-04 NRC1
 2001-05-05 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 1112 (2001 Apr 29 - May 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
52028.50  160399  467349   -169038   8397  40  43  192  192 42  0 27  1655 -2126
52029.50  162367  465470   -178214   9955  44  45  191  191 42  0 27  1525 -2300
52030.50  164247  463575   -187931   9478  36  39  180  180 42  0 27  1503 -1873
52031.50  166087  461881   -197441   9543  38  46  182  182 42  0 27  1927 -1461
52032.50  168301  460776   -207165   9904  35  41  174  174 42  0 27  2286 -1039
52033.50  170647  459480   -217516  10798  40  45  174  174 42  0 27  2378 -1742
52034.50  172684  457621   -228730  11631  36  42  173  173 42  0 27  1852 -1982
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1112:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1112 (2001 Apr 29 - May 05)
      01  4 29   01  4 30   01  5  1   01  5  2   01  5  3   01  5  4   01  5  5
prn   3d rss (cm)
  1       7          8          5          6          5          6         10   
  2      12         14         10          6          7          6          7   
  3       6         16         24         27         17          5          9   
  4       9         11         10          8         10          8         15   
  5       8         13         15          7          4          8         10   
  6       9         11          9          9          9         10         18   
  7       9          7          6          4          6          5         20   
  8       7          8          8          4          4          6          5   
  9       6         11          6          5          6          6          8   
 10       9         13         12          5         13         10          9   
 11       6          7          7          7          5          7          7   
 13       7          7          6          6          6          4          8   
 14      10         12         16         13         16         11         10   
 18      10         12         10          8          6          4          8   
 19       3          9          5          5         12          6         10   
 20      11          6          8         10          3          6          7   
 21      16         25          8         12         13         14         13   
 22       5          9         11         19          8          7          6   
 23      15         16         12         13         10          4         14   
 24       9         10         11         10          9          9         10   
 25       8          8          8         10         15          8         10   
 26       7         11          6          8          8          9          6   
 27       5          8          7          2          4          5          6   
 28       5          8          6          8          5          5          6   
 29      11         10         14         12         12          9          8   
 30       8          8         13          8          7         10          9   
 31       4          7          8          4          6          4          6   
_______________________
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 1112 (2001 Apr 29 - May 05)
 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   1.0    .108        .834e-01    55.0        4.00        3.47    
ALGO*  6.4    .357        .461        38.8        4.40        3.39    
ALIC   1.9    114.       -.336e-01    53.6        4.50        3.73    
AREQ*  6.0    36.7        73.3        25.5        4.53        3.11    
ARTU   5.8    21.5       -.999e-01    38.7        4.86        2.68    
AUCK*  7.0    20.0       -.615e-02    58.0        5.31        2.91    
BAHR*  6.9    .708        763.        35.2        4.90        3.20    
CAS1*  2.0    13.7       -.234e-02    27.0        4.00        1.20    
CIC1   3.8    61.5       -.970e-02    58.1        4.00        3.24    
COCO   4.8    22.3       -.931e-02    26.0        5.22        3.56    
CORD   2.0    16.7        .420e-03    67.5        3.00        1.13    
CRO1   4.8    .742e+05    395.        38.4        4.81        3.64    
DAV1*  5.0    23.5       -.115e-01    29.8        3.84        1.19    
DGAR    .9    29.3       -.136e-01    37.0        7.00        2.44    
EISL   6.9    58.5       -.266e-01    79.4        5.01        2.68    
ESTI   1.9    .289e+06    516.        98.3        6.00        1.40    
FAIR*  6.9    .669       -.726e-01    32.6        4.00        .976    
FORT*  6.1    .809e+07    63.4        100.        5.00        1.54    
GUAM*  6.8    26.7       -.150        50.2        7.45        3.02    
HRAO   4.0    .423e+04    938.        79.3        4.27        3.53    
IRKT*  6.8    .469e+04    .310        66.6        4.45        2.44    
JAB1   2.9    .289e+06    490.        42.3        5.36        2.58    
JPLM   2.0    .175e+05    31.9        61.0        4.00        2.70    
KARR    .9    106.       -.262e-01    33.0        6.00        3.03    
KELY   2.5    .132e+05   -2.18        55.3        5.77        1.78    
KERG*  5.0    .290e+06    495.        54.8        5.22        2.38    
KOKB*  6.9    1.79        .121        53.1        5.46        1.18    
KOUR*  1.9    .277e+06    289.        41.0        7.05        2.15    
KUNM   1.9    82.2       -.648e-01    94.4        5.56        2.61    
LHAS*  3.7    11.1       -.323e-02    33.0        4.78        3.77    
LPGS   3.4    81.6       -.166e-01    42.3        4.51        .847    
MAC1*  7.0    14.3       -.620e-02    48.3        3.75        2.50    
MAD2   1.0    .193e+04    1.03        39.0        4.00        1.94    
MAG0   7.0    11.9       -.939e-01    41.2        4.87        2.75    
MANA   2.0    .290e+06    495.        97.0        6.52        1.78    
MAS1*  3.9    2.20        59.3        41.5        4.28        3.09    
MATE*  1.0    .172        441.        64.0        5.00        2.30    
MCM4*  3.8    .127e+05    33.0        56.5        5.00        .897    
MEDI   1.9    .435        719.        83.4        5.00        2.29    
NICO   1.0    19.4       -.808e-02    24.0        4.00        3.70    
NKLG   1.9    .315e+06    450.        77.5        8.00        1.64    
NRC1   4.4    .           .           45.8        4.53        3.58    
NRIL   1.8    .367e+05    1.37        37.5        4.00        2.04    
NYA1   4.0    .945e-01    .597        30.8        4.00        1.88    
NYAL*  3.0    .183        .113        51.7        4.00        1.92    
OHIG*  7.0    14.1       -.176e-02    52.0        4.05        2.36    
ONSA*  7.0    .211        323.        44.2        4.16        2.55    
PIMO   1.8    25.5       -.870e-02      .         4.00        .930    
POL2   3.0    35.7       -.137e-01    69.0        3.70        2.78    
REYK   2.9    9.80       -.781e-02    55.2        6.00        2.20    
RIOP    .9    52.7       -.333e-01    73.0        4.00        1.60    
SANT*   .9    27.9       -.866e-01    103.        4.00        .868    
SELE   4.0    .383e+07    .712e+04    75.3        3.00        2.90    
SEY1   4.5    184.       -.307e-01    92.0        6.44        1.42    
SFER   3.0    126.        34.0        68.7        4.69        2.39    
SIO3    .9    31.7       -.821e-01    29.0        6.00        2.98    
SSIA   3.0    .289e+06    502.        94.3        7.00        1.56    
STJO   6.0    3.25       -.942        31.0        4.36        3.65    
SUTH   1.0    18.6       -.418e-02    59.0        5.00        2.11    
THTI   7.0    2.61        122.        77.6        6.89        2.21    
TID1   2.0    .742e-01    .145        26.0        4.00        3.17    
TIDB*  7.0    .206e+05    105.        25.9        4.74        3.44    
TIXI   1.0    9.93       -.696e-01    43.0        4.00        2.92    
TOW2   2.0    17.5       -.753e-02    18.5        4.00        3.87    
TRAB   4.7    16.2        .231e-01    46.6        5.48        2.95    
TSKB*  6.9    1.28       -1.10        64.9        3.38        2.92    
USNO   3.2    .           .           46.7        5.00        4.00    
USUD   5.0    .199        414.        35.1        5.21        3.57    
WHIT   2.9    23.3        3.62        25.7        4.36        2.47    
WTZR*  7.0    92.6       -.889        56.3        5.15        3.00    
WUHN   2.9    33.3       -.138        53.6        6.00        3.46    
XIAN   2.0    49.9       -.104e-01    49.1        4.00        2.13    
YAR1*  4.2    252.        .137        81.1        3.70        2.14    
YAR2   2.6    18.8       -.126        32.3        4.64        3.29    
YELL*  6.8    .142        .227        43.3        4.60        1.90    
PRN01  7.0    3.62        176.        47.7        4.74        2.23    
PRN02  6.8    2.78       -8.06        54.3        4.88        2.40    
PRN03  7.0    2.14        25.3        47.9        4.87        2.09    
PRN04  7.0    1.25        702.        54.0        5.00        2.30    
PRN05  6.9    3.93        296.        57.8        4.76        2.17    
PRN06  7.0    7.95       -.663        55.9        5.00        2.24    
PRN07  6.9    1.59        579.        56.3        5.00        2.38    
PRN08  7.0    3.61        179.        49.4        4.87        2.25    
PRN09  7.0    2.52       -43.0        52.6        4.87        2.29    
PRN10  6.6    2.55        3.31        56.1        5.00        2.26    
PRN11  7.0    .468        1.96        49.3        5.00        2.33    
PRN13  7.0    .276       -1.47        55.6        4.88        2.29    
PRN14  7.0    .295       -105.        54.8        4.88        2.33    
PRN18  7.0    .541       -95.4        53.0        5.00        2.34    
PRN19  7.0    4.34        514.        49.3        3.87        2.27    
PRN20  7.0    .311       -68.1        53.3        5.45        2.35    
PRN21  6.8    3.20        2.74        49.5        5.48        2.15    
PRN22  6.9    1.03        585.        51.1        5.00        2.16    
PRN23  6.8    5.27        12.2        54.1        5.74        2.27    
PRN24  7.0    2.13        47.3        55.6        4.88        2.33    
PRN25  7.0    2.69        13.3        52.9        5.00        2.37    
PRN26  7.0    .717        457.        50.3        5.00        2.42    
PRN27  7.0    4.21        19.2        48.6        4.74        2.34    
PRN28  7.0    1.03        8.81        53.9        5.15        2.14    
PRN29  7.0    .799        535.        54.5        4.74        2.38    
PRN30  6.8    2.13       -17.9        56.5        4.88        2.03    
PRN31  7.0    3.47        42.0        49.7        5.15        2.32    
_______________________
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  4 29   01  4 30   01  5  1   01  5  2   01  5  3   01  5  4   01  5  5
prn   3d rss (cm)
  1     297        317        240        330        260        280        258   
  2     828        439       1290        937       1226       2337       1497   
  3     277        350        220        219        251        298        423   
  4     401        551        339        308        196        164        269   
  5     826        550        366        367        494        525        304   
  6     672        562        785        727       1157        862        502   
  7     340        571        350        445        455        405        405   
  8     360        351        355        349        365        382        405   
  9     280        266        250        225        243        398        241   
 10     348        525        277        307        266        321        377   
 11     187        210        227        205        494        504        372   
 13     271        269        271        291        319        354        428   
 14     275        486        327        261        239        266        307   
 18     226        262        493        311        443        371        357   
 19     239        140        209        297        337        370        380   
 20     182        183        339        465        253        418        390   
 21     645        378        353        558        540        655       1875   
 22     253        350        276        305        405        223        266   
 23     913        601        712        681       1241       1221        886   
 24     261        301        193        150        178        216        254   
 25     413        379        370        459        309        192        361   
 26     526        799        299        154        306        526        460   
 27     225        237        231        356        255        349        406   
 28     487        804        234        343        649        753        523   
 29     241        266        347        252        269        308        443   
 30     439        200        409        206        618        459        438   
 31     368        213        216        378        384        373        517   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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