[IGSREPORT-7713] Wk 1085 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Tue Nov 7 15:07:22 PST 2000


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IGS Electronic Report   07 Nov 15:07:22 PST 2000      Message Number 7713
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1085 (DAYS 296-302, DATES 2000 Oct 22 - Oct 28)
******************************************************************************

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/1085.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10857.sum         This text file.
jpl10857.erp         Earth rotation parameters for GPS week 1085.
jpl10857.snx         Ground station coordinates for GPS week 1085, SINEX format.
jpl1085[0-6].sp3     GPS ephemerides for GPS week 1085, sp3 format.
jpl1085[0-6].tro     Ground station troposphere estimates for GPS week 1085.
jpl1085[0-6].clk     GPS and ground station clocks for GPS week 1085, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 9.0 cm

A large clock discontinuity (reset) of about 36 microseconds was detected
for PRN27 at approximately 14:50 on day 301.

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: NRC1 (not USNO) used as reference clock the entire GPS week 1085.
WARNING: Data from PRN15 and PRN28 excluded the entire GPS week 1085.
WARNING: Data from PRN02 excluded days 296-300.
WARNING: Data from PRN08 excluded day 301.
WARNING: Data from PRN24 excluded days 301 and 302.
WARNING: Data from LBCH, THU1 excluded day 296.
WARNING: Data from LBCH, MAG0, PETP, THU1, UZHL excluded day 297.
WARNING: Data from BARB, LBCH, PETP, SOFI excluded day 298.
WARNING: Data from AREQ, LBCH, PETP excluded day 299.
WARNING: Data from ISTA, LBCH, PETP excluded day 300.
WARNING: Data from KELY, LBCH, PETP excluded day 301.
WARNING: Data from ESTI, LBCH, PETP excluded day 302.

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 1085 (2000 Oct 22 - Oct 28)
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
51839.50  -41264  266199   1358334  11312  36  44  162  162 42  0 24 -1692  1598
51840.50  -42687  267734   1347080  11194  40  50  171  171 42  0 24 -1523  1792
51841.50  -43799  269343   1335742  11482  36  44  162  162 42  0 24 -1228  1716
51842.50  -44901  270845   1324161  11680  37  44  164  164 42  0 24 -1894  1397
51843.50  -46288  272713   1312345  11952  35  41  157  157 42  0 24 -1852  1882
51844.50  -47687  274393   1300198  12342  34  42  158  158 42  0 23 -1874  1106
51845.50  -48879  275749   1287489  13076  37  44  168  168 42  0 24 -1526   342
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1085:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1085 (2000 Oct 22 - Oct 28)
      00 10 22   00 10 23   00 10 24   00 10 25   00 10 26   00 10 27   00 10 28
prn   3d rss (cm)
  1      15         19         20         17         13         11         15   
  2                                                             38         38   
  3      12          8          7          6          6          6          8   
  4       8          5          6         12          8         11         12   
  5       4          6          3          8          6          9          7   
  6      11          7          6          6          6          7          9   
  7      13         14         16          8         17         17         17   
  8      10          8          9          9          6                    16   
  9       5          8          7          6          6          7          5   
 10       6          9          5          9          8         11         10   
 11      11         19         12          7         12         12          6   
 13      13         11         14         11         19          6         10   
 17       7          8          5          7          8          5          8   
 19       9          7          8         12         20         14         22   
 20      21         14         11         12          9         14         18   
 21       9         10          9          8          8          7          6   
 22       9          8          8          7         11         11          8   
 23      15         11         22         22          8          8         10   
 24       6          6          6         22         30                         
 25      13         13         13         11          9         11         10   
 26       4          8          7          9          7          6          9   
 27      10          8         10          9         14          8         13   
 29      13         12          8          7         13          8         10   
 30      22          8          6          8          9          8          8   
 31       6         12          8          3          5          6         12   
_______________________
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 1085 (2000 Oct 22 - Oct 28)
 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*  7.0    .103        1.73        34.8        3.77        3.46    
AOML   1.0    42.1        .289e-02    60.0        5.00        2.61    
AREQ*  3.0    35.8        130.        24.7        4.00        2.77    
ARTU   4.0    24.8       -.890e-01    36.5        4.28        2.76    
ASC1   5.5    936.       -.269e-02    75.3        6.00        2.33    
AUCK*  6.8    19.8        .266e-02    63.8        4.17        2.99    
BAHR*  4.0    .602        763.        32.5        4.27        3.34    
BJFS   2.0    1.35        693.        21.5        5.10        3.12    
CAS1*  5.0    11.4       -.336e-02    29.2        3.83        1.17    
CIC1   2.9    60.1       -.226e-02    68.9        4.00        2.61    
COCO   7.0    83.1       -.578e-03    26.7        5.48        2.95    
DAV1*  6.9    15.0       -.264e-02    126.        3.30        1.08    
DGAR   6.8    31.6       -.777e-02    33.1        6.91        2.48    
FAIR*  6.7    .275       -1.90        24.4        3.75        .890    
FLIN    .9    15.7       -.544e-02    71.0        4.00        2.43    
FORT*  5.4    .625e+07   -178.          .         6.14        1.39    
GALA   3.9    34.3       -.122        24.3        4.28        3.38    
GOUG   4.8    .289e+06    503.        60.0        5.00        2.29    
GUAM*  7.0    42.9       -.161        47.0        8.31        3.50    
GUAT   3.0    .289e+06    490.        92.1        5.36        1.58    
HARV   1.0    20.9       -.143e-01    64.0        5.00        3.35    
HOB2*  3.0    .828e-01   -47.4        37.4        5.00        3.39    
HOLB   1.0    58.0        125.        43.0        5.00        3.55    
HRAO   7.0    .287e+06    510.        79.0        5.03        3.20    
INEG    .9    .288e+06    1.58        59.0        4.00        .847    
IRKT*  7.0    1.09       -.318        64.5        4.16        2.53    
ISTA   1.0    25.6       -.101        23.0        4.00        3.34    
JAB1   5.7    36.9       -.150        59.9        6.39        2.94    
JAMA   2.8    30.4       -.967e-01    41.0        5.39        3.04    
JPLM   1.0    .160e+05    47.5        66.0        4.00        2.76    
KELY   1.6    11.5       -.452e-02    73.5        5.52        1.07    
KERG*  3.9    .289e+06    489.        54.1        5.52        2.00    
KIT3*  7.0    21.5       -.104e-01    44.3        5.16        3.58    
KOKB*  6.7    1.39       -2.26        39.5        5.20        1.10    
KOUR*  6.4    .414e+05    117.        59.7        6.59        2.28    
KUNM   1.0    91.2       -.571e-01    90.0        5.00        2.24    
KWJ1*  6.1    .422e+06    32.6        79.5        6.20        1.03    
LHAS*  6.0    17.2       -.130e-02    32.3        4.36        3.64    
MAC1*  6.6    15.8       -.112        32.4        4.00        1.60    
MAG0   3.6    21.1       -.871e-01    38.8        4.53        2.46    
MALI*  5.7    .862e+07   -822.          .         7.00        1.70    
MAS1*  3.0    2.45        .950        29.7        4.00        3.18    
MAW1   3.0    22.8       -.173e-02    36.4        3.72        1.33    
MCM4*  2.0    .802e+04    24.4        58.0        4.53        .974    
NOUM   1.0    .289e+06    508.        74.0        5.00        1.98    
NRC1   6.9    .           .           45.1        4.15        3.51    
NRIL   3.0    21.4       -.892e-01    34.6        4.00        1.91    
NYA1   1.0    .115       -.320        27.0        3.00        .843    
NYAL*  5.9    .193       -.801        52.3        3.70        1.08    
OHIG*  7.0    35.7       -.240e-02    73.6        4.16        1.88    
ONSA*  5.9    15.0       -.494e-01    44.5        4.74        2.41    
PERT*  1.0    164.        .641        62.0        4.00        2.46    
RAMO   3.0    39.7       -.113        57.5        6.36        2.41    
SANT*  6.4    299.       -.584e-01    30.7        3.88        1.06    
SFER   2.9    29.2        837.        67.1        4.68        2.26    
SIO3   1.8    31.8       -.100        28.5        4.53        2.53    
SYOG   2.0    .279e+06    477.        47.5        5.52        1.33    
THTI   3.9    .289e+06    500.        79.0        6.76        2.15    
TIDB*  6.9    .461e+05    700.        31.0        5.58        3.25    
TIXI   2.8    16.7       -.787e-01    40.0        4.00        1.94    
TSKB*  6.0    1.60        1.45        72.9        4.19        2.73    
USUD   2.0    .460        590.        34.0        5.00        3.40    
VESL   1.9    .289e+06    506.        53.5        5.00        2.40    
WHIT   2.0    15.7       -16.3        29.5        4.00        2.07    
WTZR*  5.9    110.       -1.04        53.0        4.84        2.79    
WUHN   3.0    .205e+07    264.        54.3        6.00        3.60    
YAR1*  5.7    561.       -.636e-01    65.2        3.88        1.72    
YEBE   1.0    .194        300.        49.0        4.00        2.04    
YELL*  5.9    .119        .515        40.8        3.86        1.46    
ZECK   2.0    19.5       -.586e-02    72.0        4.00        2.65    
PRN01  7.0    3.33        150.        52.5        5.00        1.96    
PRN02  1.7    2.94       -290.        49.5        5.53        1.87    
PRN03  7.0    2.11        51.6        49.2        5.00        2.06    
PRN04  7.0    1.16        518.        55.7        5.00        1.88    
PRN05  6.8    3.28        270.        52.9        5.16        2.05    
PRN06  7.0    7.09        .167e-01    50.9        5.00        2.19    
PRN07  7.0    1.87        256.        51.8        5.00        2.11    
PRN08  6.0    2.97        610.        50.4        5.00        1.98    
PRN09  7.0    2.51       -14.1        51.5        5.00        2.19    
PRN10  7.0    2.30        58.6        57.3        5.00        2.04    
PRN11  7.0    .567        .344        53.7        5.00        1.95    
PRN13  7.0    .327        .652e-01    61.2        5.00        1.98    
PRN17  7.0    3.62       -280.        52.8        5.00        2.35    
PRN19  7.0    3.74        330.        50.1        5.00        1.84    
PRN20  7.0    .368       -50.8        54.0        5.00        1.99    
PRN21  7.0    4.22        17.7        50.4        5.00        2.22    
PRN22  6.7    2.36        375.        55.5        5.16        1.94    
PRN23  7.0    5.59        1.70        52.2        5.80        2.24    
PRN24  4.9    2.19        11.0        53.2        5.00        2.08    
PRN25  7.0    2.72        9.09        49.1        5.16        1.84    
PRN26  7.0    .809        18.1        52.0        5.00        2.09    
PRN27  6.9    .307e+04    31.0        49.1        4.59        1.87    
PRN29  7.0    .920        182.        48.3        4.87        2.24    
PRN30  6.7    1.96       -43.6        52.8        5.00        1.94    
PRN31  7.0    3.09        16.0        53.4        5.00        1.91    
_______________________
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
      00 10 22   00 10 23   00 10 24   00 10 25   00 10 26   00 10 27   00 10 28
prn   3d rss (cm)
  1     268        573        291        237        374        720        456   
  2                                                            375        486   
  3     256        192        196        178        295        426        249   
  4     187        252        391        301        219        183        358   
  5     473        396        367        358        377        458        486   
  6     619        741        571        597        492        517        598   
  7     256        318        541        450        320        519        452   
  8     316        291        433        561        370                   338   
  9     411        710        546        364        306        300        248   
 10     282        331        364        463        506        381        342   
 11     879        173        308        328        313        274        443   
 13     485        644        327        354        584        402        679   
 17     307        473        311        363        466        407        403   
 19     414        662        668        312        335        318        476   
 20     226        338        306        267        257        299        287   
 21     549        555        274        312        764        377        720   
 22     414        531        315        285        452        330        362   
 23     558        529        468       1144        692        643       1389   
 24     314        410        533        589       1294                         
 25     236        164        339        310        313        487        554   
 26     413        318        436        212        204        184        160   
 27     523        344        354        226        327        314        336   
 29     336        344        209        222        253        261        339   
 30     325        167        206        242        238        235        345   
 31     565        312        321        353        418        584        287   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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