Date: Fri, 6 Apr 2001 13:32:44 -0700 (PDT)
From: David C Jefferson <djeff@cobra.jpl.nasa.gov>
Message-Id: <200104062032.NAA28310@bierman.jpl.nasa.gov>
To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov
Subject: [IGSREPORT-8151] Wk 1107 JPL Analysis Report
Sender: owner-igsreport
Precedence: bulk

******************************************************************************
IGS Electronic Report   06 Apr 13:32:45 PDT 2001      Message Number 8151
******************************************************************************

Author: D C Jefferson

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 1107 (DAYS 84-90, DATES 2001 Mar 25 - Mar 31)
******************************************************************************

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/1107.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11077.sum         This text file.
jpl11077.erp         Earth rotation parameters for GPS week 1107.
jpl11077.snx         Ground station coordinates for GPS week 1107, SINEX format.
jpl1107[0-6].sp3     GPS ephemerides for GPS week 1107, sp3 format.
jpl1107[0-6].tro     Ground station troposphere estimates for GPS week 1107.
jpl1107[0-6].clk     GPS and ground station clocks for GPS week 1107, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 cm

A clock discontinuity (reset) of about 3.3 microseconds was detected for PRN04
at approximately 16:45 on day 085.

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 FORT, GOLD, GRAZ, LBCH, MANA, THTI excluded day 084.
WARNING: Data from ASC1, FORT, GUAT, LBCH, MANA, THTI, WUHN excluded day 085.
WARNING: Data from GALA, HNPT, LBCH, MANA, NKLG, THTI, VENE, WUHN excluded day           086.
WARNING: Data from ESTI, FORT, GRAZ, MANA, NKLG, PETP, REYK, SSIA, WUHN                  excluded day 087.
WARNING: Data from FORT, IISC, KUNM, LBCH, NYAL, PETP, WUHN excluded day 088.
WARNING: Data from GRAZ, LBCH, MAG0, MEDI, PETP, SEY1, WUHN excluded day 089.
WARNING: Data from BJFS, CARR, GRAZ, HARV, LBCH, PETP, THU1 excluded day 090.

JPL REFERENCE CLOCK TABLE                   GPS week 1107 (2001 Mar 25 - Mar 31)
 2001-03-25 NRC1
 2001-03-26 NRC1
 2001-03-27 USNO
 2001-03-28 USNO
 2001-03-29 USNO
 2001-03-30 USNO
 2001-03-31 PIE1
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 1107 (2001 Mar 25 - Mar 31)
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
51993.50   74946  490829    127724   8472  38  50  181  181 42  0 27  3065   290
51994.50   77896  491081    118955   9066  40  50  182  182 42  0 27  2722   338
51995.50   80523  491244    109755   9333  41  51  185  185 42  0 26  2376   194
51996.50   82953  491210    100245   9687  40  49  184  184 42  0 26  2318    16
51997.50   85216  491201     90450   9904  38  48  178  178 42  0 27  1960  -487
51998.50   87421  490637     80644   9707  39  49  181  181 42  0 27  2299  -576
51999.50   89636  490166     71026   9529  45  61  191  191 42  0 27  1819  -619
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1107:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1107 (2001 Mar 25 - Mar 31)
      01  3 25   01  3 26   01  3 27   01  3 28   01  3 29   01  3 30   01  3 31
prn   3d rss (cm)
  1       5          5         10          9         11          8          9   
  2       7          7          6          8          8          6          6   
  3       6          5          4          6          7          7         10   
  4       5          5          5         12          4          6          7   
  5       8          4         20         12         13         17         15   
  6      11          8         13         10          9         13         16   
  7       5          5          5         11          8         13         12   
  8       9          6         11         10          9          4          6   
  9       9         17         21         13         12         14          7   
 10       7          3          4         10          8          5          7   
 11       9          5          8         10          7          9          8   
 13       7          4          6          8          5          8          6   
 14       8          8          9         19         15         12         16   
 17      10         11         27                    11         13         23   
 19       5          6          8         15          9         13         14   
 20       5          8         10          5          7          7         10   
 21      19         18         13         12         13         12          8   
 22       8          7          6          9         10          9         10   
 23      12          7         11         10         12         14         11   
 24       5          4          7         12          5          7          9   
 25       6         10          8         12          7          6          9   
 26       8          8          6          7          6          7          6   
 27       6          6          7         12          8          5          7   
 28       7         11                    10          7          8          7   
 29       6          8         11         16         11          9          9   
 30       8          4          7         10         12         10         14   
 31       5          4          6          6         12          9         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 1107 (2001 Mar 25 - Mar 31)
 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*  6.9    186.       -.265        36.6        4.00        2.78    
ALIC   3.0    93.9       -.234e-01    58.4        5.00        3.57    
AREQ*  4.8    .200e+05    107.        25.4        4.62        2.38    
ARTU   6.7    29.0       -.978e-01    36.6        4.00        2.56    
ASC1    .5    .603e+04   -.382          .         6.00        3.18    
AUCK*  5.0    33.2       -.810e-02    66.0        4.40        3.04    
BAHR*  5.8    .585        763.        31.8        4.37        3.69    
BILI   2.8    15.5       -.103        41.4        5.00        1.64    
CAS1*  3.0    14.1       -.676e-02    27.7        4.00        .928    
CHAT*  2.0    89.7       -.207e-02    81.5        5.53        2.51    
CIC1   4.9    92.1       -.161e-01    67.1        3.24        2.63    
COCO   7.0    16.2       -.595e-02    26.5        7.12        3.82    
CRO1   1.9    63.9       -.126        40.5        5.51        3.64    
DARW    .9    26.4       -.136e-01    48.0        8.00        3.17    
DAV1*  3.7    17.1       -.107e-01    30.9        3.82        1.14    
DGAR   6.8    45.5       -.147e-01    33.8        7.46        2.67    
EISL   4.5    81.7       -.403e-01    84.0        4.63        2.49    
ESTI   1.7    .289e+06    500.        97.8        6.00        1.45    
FAIR*  6.7    160.        .396        24.4        3.35        .813    
FORT*   .7    451.        1.32          .         6.00        1.60    
GALA   2.0    59.4       -.146        23.5        5.00        2.76    
GUAM*  7.0    43.9       -.181        49.9        6.72        3.13    
GUAT   2.0    .289e+06    492.        97.5        5.00        1.30    
HOB2*  3.0    336.       -1.37        47.3        5.35        3.18    
HRAO   4.0    .290e+06    507.        76.2        4.53        3.82    
IISC    .6    55.0       -.352e-01      .         5.00        1.69    
IRKT*  6.7    1.78        .473e-01    70.3        4.00        2.50    
JAMA   1.9    42.9       -.118        42.5        5.00        2.92    
JPLM   1.0    45.6        18.0        79.0        3.00        2.90    
KELY   2.9    15.7       -.517e-02    79.6        6.00        1.28    
KERG*  6.9    .288e+06    503.        50.6        5.92        2.24    
KOKB*  6.7    1.63        .201e-01    48.1        4.36        1.09    
KOUR*  2.6    3.96        436.        42.7        7.00        3.32    
KWJ1*  5.9    92.5       -.278e-01    40.3        5.15        .960    
LHAS*  3.7    12.1       -.445e-03    33.5        4.48        3.62    
LPGS   6.7    205.       -.239e-01    40.8        4.33        2.88    
MAC1*  5.7    .242e+04    .628        41.2        3.88        1.74    
MAD2   1.0    .118e+04   -2.08        42.0        5.00        2.03    
MAG0   2.0    16.6       -.969e-01    41.0        4.53        2.73    
MAS1*  2.9    3.39        59.3        42.7        4.00        2.82    
MATE*  1.0    .144        249.        61.0        5.00        2.64    
MAW1   2.9    32.6       -.620e-02    36.9        4.00        1.07    
MCM4*  1.9    28.3        43.7        64.0        5.51        .910    
MKEA   2.0    50.7       -.170        26.5        5.52        3.52    
NICO   1.8    44.5       -.164e-01    24.0        4.00        3.60    
NKLG   5.0    .279e+06    496.        75.4        7.43        1.67    
NOUM    .9    .289e+06    498.        86.0        7.00        1.83    
NRC1   2.1    .           .           44.0        3.00        3.57    
NRIL   4.9    .231e+05    .423        37.6        4.00        1.57    
NSSP   1.0    53.5       -.416e-01    80.0        4.00        2.60    
NYA1   4.0    .132        .224        31.0        3.55        1.12    
NYAL*  3.0    14.7        .376e-01    49.4        4.00        1.19    
OHIG*  7.0    19.3       -.280e-02    48.2        4.16        2.38    
ONSA*  7.0    .171        325.        45.6        4.00        2.36    
PIE1*   .8    .           .           70.0        4.00        2.48    
PIMO    .7    31.7       -.235e-01      .         3.00        .669    
REYK   3.9    10.0       -.577e-02    56.5        6.00        1.43    
SANT*  6.9    9.67        763.          .         5.00        1.82    
SELE   4.5    65.8       -.378e-01    84.6        3.41        2.62    
SFER   3.0    .557        26.8        65.7        4.00        2.62    
SSIA    .8    .125e+07    456.        99.0        6.00        1.27    
STJO   2.0    2.89       -.243        26.5        4.00        3.34    
SUTH   3.0    32.6       -.529e-02    67.8        4.00        2.21    
THTI   4.0    5.20        153.        77.9        6.24        2.20    
TIDB*  7.0    .224        819.        24.9        5.41        3.36    
TIXI   1.0    16.5       -.115        43.0        4.00        1.77    
TSKB*  3.9    .572e+07   -567.        66.9        3.30        2.53    
USNO   4.2    .           .           44.3        5.00        3.49    
USUD   5.0    .296        414.        32.0        5.22        3.55    
WES2*  1.0    .411        .888        71.0        6.00        1.79    
WHIT   4.0    44.6        3.48        31.9        3.80        1.65    
WTZR*  7.0    182.       -.774        54.0        4.16        3.03    
WUHN   1.9    49.9       -.163        89.4        6.00        3.14    
YAKT   1.0    .408        449.        28.0        4.00        2.09    
YAR1*  6.4    498.       -.568        98.8        3.00        2.02    
YAR2   4.0    21.9       -1.31        22.0        3.59        3.22    
YELL*  6.9    .336        .795        39.2        3.89        1.42    
PRN01  7.0    3.23        170.        45.7        5.00        2.32    
PRN02  7.0    3.27       -359.        52.3        4.88        2.14    
PRN03  7.0    2.51        15.4        46.9        5.00        1.98    
PRN04  6.9    290.        699.        51.1        5.00        1.95    
PRN05  7.0    3.53        293.        54.0        5.00        2.04    
PRN06  7.0    6.46       -.319        51.8        5.34        2.01    
PRN07  7.0    1.76        583.        54.2        5.00        2.14    
PRN08  7.0    2.57        46.7        49.6        5.00        2.14    
PRN09  7.0    2.46       -37.5        50.2        5.00        2.03    
PRN10  7.0    1.88        1.61        53.2        4.73        2.07    
PRN11  7.0    .639        1.55        52.3        5.00        2.13    
PRN13  7.0    .350       -.790        52.9        5.00        2.23    
PRN14  7.0    .302       -97.5        53.0        5.00        2.02    
PRN17  6.0    3.94       -305.        52.1        5.37        1.85    
PRN19  7.0    4.12        478.        46.6        5.00        2.10    
PRN20  7.0    .289       -62.0        53.7        5.00        2.23    
PRN21  7.0    3.04        1.92        49.0        5.00        2.03    
PRN22  7.0    2.22        569.        47.9        5.00        2.08    
PRN23  7.0    6.06        10.2        53.0        5.16        1.93    
PRN24  7.0    1.91        38.9        52.5        5.00        2.18    
PRN25  7.0    2.75        12.4        48.9        5.00        2.07    
PRN26  7.0    .853        402.        49.8        4.88        2.18    
PRN27  7.0    4.42        15.7        48.8        4.87        2.14    
PRN28  6.0    1.21        13.3        51.5        5.00        2.17    
PRN29  7.0    .813        493.        51.6        5.00        2.05    
PRN30  7.0    2.16       -13.3        53.3        5.03        1.98    
PRN31  7.0    3.78        36.7        48.0        5.00        2.20    
_______________________
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  3 25   01  3 26   01  3 27   01  3 28   01  3 29   01  3 30   01  3 31
prn   3d rss (cm)
  1     431        333        383        483        421        590        370   
  2     223        487        476        344        295        214        460   
  3     344        264        220        349        389        318        492   
  4     496        561        664        480        405        473        543   
  5     395        341        409        388        393        504        436   
  6     615        522        596        492        622        519        737   
  7     308        340        559        596        299        435        334   
  8     493        550        457        738        425        568        396   
  9     278        289        300        344        301        381        256   
 10     356        514        513        314        277        615        312   
 11     461        344        614        434        254        285        294   
 13     306        298        260        281        377        332        313   
 14     256        350        260        427        543        317        285   
 17    1104       1502       1148                  1572       1497       1705   
 19     319        481        351        615        530        147        629   
 20     189        470        484        194        623        373        451   
 21    1513       1244        273        304        949        841       1213   
 22     197        188        250        215        285        225        251   
 23     591        617       1071        209        825        584        518   
 24     376        260        213        502        594        363        319   
 25     412        312        362        320        338        331        348   
 26     163        299        446        529        533        562        550   
 27     406        367        466        559        245        279        530   
 28     375        359                  1326        450        345        318   
 29     400        356        381        284        333        335        327   
 30     180        185        218        239        208        207        235   
 31     322        469        248        378        461        346        333   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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