[IGSREPORT-8171] Wk 1108 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Mon Apr 16 09:13:56 PDT 2001


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IGS Electronic Report   16 Apr 09:13:57 PDT 2001      Message Number 8171
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1108 (DAYS 91-97, DATES 2001 Apr 01 - Apr 07)
******************************************************************************

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/1108.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11087.sum         This text file.
jpl11087.erp         Earth rotation parameters for GPS week 1108.
jpl11087.snx         Ground station coordinates for GPS week 1108, SINEX format.
jpl1108[0-6].sp3     GPS ephemerides for GPS week 1108, sp3 format.
jpl1108[0-6].tro     Ground station troposphere estimates for GPS week 1108.
jpl1108[0-6].clk     GPS and ground station clocks for GPS week 1108, 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 PRN18 excluded the entire GPS week 1108.
WARNING: Data from PRN10 excluded day 093.
WARNING: Data from PRN17 excluded days 091, 096, and 097.
WARNING: Data from PRN20 excluded day 094.
WARNING: Data from BJFS, CARR, GRAZ, IISC, LBCH, PETP, SEY1, WTZT excluded day           091.
WARNING: Data from DGAR, GRAZ, IISC, KELY, LBCH, NLIB, SEY1, WTZT excluded day           092.
WARNING: Data from GOLD, JAMA, KSTU, LBCH, LPGS, MEDI excluded day 093.
WARNING: Data from GRAZ, HOB2, KELY, LBCH, WTZT excluded day 094.
WARNING: Data from LBCH, WTZT excluded day 095.
WARNING: Data from CARR, DAV1, GRAZ, LBCH, WTZR, WTZT excluded day 096.
WARNING: Data from ASC1, CARR, GRAZ, LBCH, LPGS, PIMO, SELE, WTZT excluded day           097.

JPL REFERENCE CLOCK TABLE                   GPS week 1108 (2001 Apr 01 - Apr 07)
 2001-04-01 USNO
 2001-04-02 NRC1
 2001-04-03 NRC1
 2001-04-04 NRC1
 2001-04-05 NRC1
 2001-04-06 NRC1
 2001-04-07 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 1108 (2001 Apr 01 - Apr 07)
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
52000.50   91698  489500     61448   9623  42  54  192  192 42  0 26  2042  -472
52001.50   93708  489006     52238   8797  43  49  185  185 42  0 27  2098   -26
52002.50   95924  488755     43478   8723  42  51  184  184 42  0 26  2370  -749
52003.50   98029  487872     34835   8563  39  49  183  183 42  0 26  2452  -547
52004.50  100345  487034     26270   8567  40  46  180  180 42  0 27  2601  -560
52005.50  102968  486761     17494   8986  39  49  184  184 42  0 26  2788  -437
52006.50  105627  486478      8047   9907  42  52  189  189 42  0 26  2364   -93
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1108:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1108 (2001 Apr 01 - Apr 07)
      01  4  1   01  4  2   01  4  3   01  4  4   01  4  5   01  4  6   01  4  7
prn   3d rss (cm)
  1       4          5          5          4          4          7         12   
  2       9          8          4          8          9          7          9   
  3       7          7          4          4          5         11          6   
  4       5          8          9          4          6          8         10   
  5      12          8         13          8         13          9         18   
  6      26         21         14         10         18          7         12   
  7      10          9         13          8          8          8         14   
  8       7          6          5          5          5         15          8   
  9      12         14         14         11          6          7         15   
 10       8          4                     3          6          9         21   
 11      23         22         13         12          8         11         65   
 13       5          5          7          3          3         14         12   
 14      12         11          8         10         15         11          9   
 17                 16         15         20         22                         
 19       6          6          7          5          5          8         15   
 20      10          9          6                     7         19         15   
 21       9          8          7         25         28         11          8   
 22       6          6          6          5          5          7         11   
 23      17         12         12          7          8         22         16   
 24      12         11          9          5          6         11         14   
 25       6          7          5          7          6         10          6   
 26       8          9         10          5          6          7         12   
 27       7          6          6          4          5         24         11   
 28       7          7          7          3          6          8          9   
 29       9          7          6          7          9          8         13   
 30      14          8         13         15          9          8          7   
 31       5          5          7          4          3         14         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 1108 (2001 Apr 01 - Apr 07)
 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    .184        .109        39.5        4.00        2.97    
ALIC   4.0    106.       -.384e-01    54.6        5.53        3.68    
ANKR   1.0    25.5       -.138e-01    40.0        4.00        3.46    
AREQ*  6.9    45.2        87.7        24.1        4.60        2.77    
ARTU   5.9    26.6       -.989e-01    38.0        4.73        2.57    
AUCK*  7.0    26.3       -.678e-02    67.0        4.48        3.01    
BAHR*  5.8    .450        763.        33.5        4.65        3.62    
CAS1*   .9    14.8       -.377e-02    30.0        4.00        .804    
CASA   1.0    150.        .319e+04    72.0        4.00        3.01    
CIC1   1.0    66.2        .187e-01    73.0        3.00        2.83    
COCO   7.0    14.8       -.868e-02    28.7        7.66        3.76    
DAV1*  4.3    17.1       -.112e-01    30.9        3.47        .939    
DGAR   5.4    22.4       -.103e-01    35.8        8.07        2.55    
EISL   4.8    72.6       -.302e-01    86.0        4.60        2.47    
FAIR*  6.9    .727        .206e-01    31.4        4.00        .896    
FORT*  5.0    .161e+08   -561.          .         6.16        1.49    
GALA   1.0    51.3       -.148        23.0        5.00        3.33    
GUAM*  6.9    55.9       -.185        51.4        7.59        3.02    
GUAT   5.0    .289e+06    503.        86.8        5.81        1.47    
HOB2*  2.9    .261        .681e-01    49.3        5.00        3.36    
HRAO   2.0    .288e+06    510.        77.0        5.52        3.97    
INEG    .9    .287e+06    25.6        64.0        4.00        .868    
IRKT*  6.8    1.17       -.245e-01    72.1        4.17        2.50    
JAMA   1.0    32.5       -.117        45.0        6.00        2.99    
KELY   1.9    .123e+04   -.271        61.7        6.00        1.23    
KERG*  7.0    .290e+06    496.        52.1        6.16        2.25    
KIT3*  1.0    23.7       -.105e-01    81.0        4.00        3.15    
KOKB*  6.8    .713        .392e-01    42.2        4.73        1.11    
KWJ1*  5.9    106.       -.302e-01    52.2        5.45        .953    
LHAS*  6.8    11.9       -.229e-02    33.4        4.90        3.50    
LPGS   3.9    241.       -.455e-01    42.5        4.27        2.75    
MAC1*  7.0    615.        .872e-01    41.4        3.61        1.76    
MAG0   5.8    691.       -.967e-01    40.7        5.03        2.69    
MANA   1.0    .290e+06    497.        95.0        7.00        1.86    
MAS1*  1.9    2.30        59.2        43.0        4.00        3.13    
MATE*  1.0    .284        246.        61.0        5.00        2.52    
MCM4*   .9    .394e+05    166.          .         5.00        1.01    
MONP   1.0    42.3       -.118        40.0        4.00        3.51    
NICO   2.0    16.3       -.103e-01    24.5        4.00        3.89    
NKLG   7.0    .283e+06    496.        75.1        7.16        1.78    
NRC1   6.1    .           .           44.8        3.70        3.05    
NRIL   5.8    .206e+05    .699        38.1        4.17        1.47    
NSSP   1.0    46.4       -.232e-01    68.0        4.00        2.40    
NYA1   3.0    .116        .266        32.3        4.06        1.10    
NYAL*  4.0    .225        .753e-01    49.2        4.00        1.37    
OHIG*  7.0    17.2       -.395e-02    44.7        4.00        2.44    
ONSA*  7.0    .210        325.        45.6        4.16        2.49    
POL2   1.0    36.9       -.174e-01    85.0        4.00        2.87    
REYK   3.9    9.63       -.461e-02    56.8        6.00        1.59    
SANT*  6.6    11.7        764.        97.0        4.88        1.87    
SFER   2.0    .640        27.5        67.5        4.00        2.78    
SIO3   3.5    48.5       -.127        26.4        4.76        2.91    
SUTH   5.0    41.1       -.197e-01    74.4        4.63        2.24    
SYOG    .9    1.03        286.        49.0        6.00        1.65    
THTI   7.0    3.12        270.        76.5        7.17        2.24    
TIDB*  7.0    .254        818.        25.1        5.15        3.41    
TRAB   1.0    22.6        .204e-01    45.0        6.00        3.00    
TSKB*  3.1    1.77        7.44        65.7        3.29        2.60    
USNO   1.0    .           .           44.0        4.00        3.39    
USUD   7.0    1.55        414.        33.8        5.45        3.48    
WHIT   1.0    16.4        3.55        38.0        4.00        2.00    
WTZR*  6.0    .326e+05    37.2        55.2        4.72        3.01    
WUHN   7.0    41.3       -.154        78.1        6.21        3.59    
YAKT   1.0    .510        449.        26.0        4.00        2.30    
YAR1*  6.5    132.       -.604e-02    99.6        3.14        1.96    
YAR2   5.0    17.5       -1.31        28.5        3.63        3.61    
YEBE   3.9    .155        282.        49.8        5.52        2.07    
YELL*  6.9    .308        .858        39.8        4.00        1.48    
ZECK   1.0    21.3       -.921e-02    74.0        4.00        2.66    
PRN01  7.0    3.43        171.        46.5        5.33        2.22    
PRN02  6.6    3.21       -362.        51.5        5.15        2.24    
PRN03  7.0    1.91        17.4        47.4        5.00        2.08    
PRN04  7.0    1.00        702.        49.4        5.00        2.09    
PRN05  6.9    3.11        293.        53.2        5.00        2.07    
PRN06  7.0    6.72       -.401        51.5        5.00        2.15    
PRN07  7.0    2.31        584.        51.1        5.15        2.28    
PRN08  7.0    2.74        74.6        48.2        5.16        2.27    
PRN09  7.0    1.89       -38.6        49.7        5.00        2.03    
PRN10  6.0    2.20        1.97        52.2        4.86        2.16    
PRN11  7.0    .475        1.64        55.2        5.86        2.12    
PRN13  7.0    .431       -.919        51.7        5.20        2.18    
PRN14  7.0    .260       -99.0        57.3        5.00        2.08    
PRN17  4.0    4.17       -306.        52.4        5.26        1.98    
PRN19  7.0    3.55        485.        45.1        4.64        2.35    
PRN20  6.0    .375       -63.2        54.8        5.51        2.14    
PRN21  7.0    3.05        2.08        49.6        5.00        2.03    
PRN22  6.9    1.93        573.        51.8        5.31        2.04    
PRN23  7.0    5.37        10.6        53.2        5.15        2.00    
PRN24  7.0    2.56        40.6        50.9        5.00        2.33    
PRN25  7.0    2.31        12.5        53.9        5.15        2.04    
PRN26  7.0    .835        414.        48.6        4.88        2.25    
PRN27  7.0    3.99        16.4        47.9        5.29        2.30    
PRN28  7.0    1.39        12.6        53.4        5.16        2.26    
PRN29  7.0    .854        502.        55.3        5.00        2.16    
PRN30  7.0    1.78       -14.2        52.2        5.00        2.00    
PRN31  7.0    3.95        37.7        47.7        5.34        2.29    
_______________________
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  1   01  4  2   01  4  3   01  4  4   01  4  5   01  4  6   01  4  7
prn   3d rss (cm)
  1     368        334        458        516        392        315        393   
  2     459        596        584        498        280        196        325   
  3     388        266        362        239        183        244        205   
  4     453        396        427        488        453        314        301   
  5     499        488        480        450        402        353        519   
  6     540        665        893        533       1014        596        861   
  7     837        284        333        332        435        310        311   
  8     542        492        385        394        380        357        320   
  9     289        250        282        240        310        370        237   
 10     316        303                   586        525        377        373   
 11     307        297        325        270        347        463        380   
 13     335        365        362        343        327        364        363   
 14     545        543        327        288        421        380        331   
 17               1472       1198        487       1826                         
 19     248        306        278        335        280        310        364   
 20     227        308        689                   435        278        265   
 21     390        414        296        269       1513       1404        782   
 22     246        296        252        255        186        165        209   
 23    1370        705        476        935        669        497        269   
 24     360        280        251        555        296        296        413   
 25     345        347        471        455        282        304        244   
 26     504        443        262        283        339        247        215   
 27     311        280        366        312        239        316        278   
 28     428        619        346        388        348        467        271   
 29     351        357        342        264        339        245        320   
 30     246        279        355        235        246        225        179   
 31     247        284        267        471        454        660        270   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo alic ankr areq artu auck bahr cas1 casa cic1 coco dav1 dgar eisl fair fort gala guam guat hob2 hrao ineg irkt jama kely kerg kit3 kokb kwj1 lhas lpgs mac1 mag0 mana mas1 mate mcm4 monp nico nklg nrc1 nril nssp nya1 nyal ohig onsa pol2 reyk sant sfer sio3 suth syog thti tidb trab tskb usno usud whit wtzr wuhn yakt yar1 yar2 yebe yell zeck



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