[IGSREPORT-8568] Wk 1127 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Wed Aug 29 12:32:54 PDT 2001


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IGS Electronic Report   29 Aug 12:32:55 PDT 2001      Message Number 8568
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1127 (DAYS 224-230, DATES 2001 Aug 12 - Aug 18)
******************************************************************************

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/1127.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11277.sum         This text file.
jpl11277.erp         Earth rotation parameters for GPS week 1127.
jpl11277.snx         Ground station coordinates for GPS week 1127, SINEX format.
jpl1127[0-6].sp3     GPS ephemerides for GPS week 1127, sp3 format.
jpl1127[0-6].tro     Ground station troposphere estimates for GPS week 1127.
jpl1127[0-6].clk     GPS and ground station clocks for GPS week 1127, 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)
OBE2 (Oberpfaffenhofen, Germany)  4186558.4962     835027.3904    4723759.4847
ULAB (Ulaanbataar, Mongolia)     -1257408.5014    4099404.4839    4707992.7159

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 1127.
WARNING: Data from PRN20 excluded day 225.
WARNING: Data from PRN17 excluded days 227-230.
WARNING: Data from PRN21 excluded day 230.
WARNING: Data from ANKR, GUAM, HILO, HOLP, IRKT, LBCH, WLSN, WTZT excluded day           224.
WARNING: Data from HILO, HOLP, ISTA, KELY, LBCH, TORP, WLSN excluded day 225.
WARNING: Data from GOUG, HILO, HOLP, KOUR, LBCH, MEDI, NKLG, SSIA, TORP, YAR1            excluded day 226.
WARNING: Data from BJFS, HILO, HOLP, LBCH, TORP, WLSN, YAR1 excluded day 227.
WARNING: Data from HILO, HOLP, JAB1, JAMA, LBCH, RIOG, WLSN, YAR1 excluded day           228.
WARNING: Data from HILO, HOLP, JAB1, LBCH, WES2, WLSN, YAR1 excluded day 229.
WARNING: Data from DRAG, HILO, JAB1, LBCH, WLSN excluded day 230.

JPL REFERENCE CLOCK TABLE                   GPS week 1127 (2001 Aug 12 - Aug 18)
 2001-08-12 NRC1
 2001-08-13 NRC1
 2001-08-14 NRC1
 2001-08-15 NRC1
 2001-08-16 NRC1
 2001-08-17 NRC1
 2001-08-18 USNO
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 1127 (2001 Aug 12 - Aug 18)
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
52133.50  207200  187527   -406369   2719  30  35  161  161 42  0 26 -2092 -2455
52134.50  204842  185186   -409240   3023  31  36  166  166 42  0 26 -2557 -2777
52135.50  202460  182554   -412023   2544  28  33  160  160 42  0 27 -2370 -2781
52136.50  199824  180199   -414513   2436  29  33  166  166 42  0 26 -2494 -2371
52137.50  197178  178050   -416943   2424  29  37  171  171 42  0 26 -2489 -2396
52138.50  194722  175940   -419484   2657  33  38  178  178 42  0 26 -2679 -2323
52139.50  192103  173575   -422117   2610  30  37  180  180 42  0 25 -2868 -2521
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1127:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1127 (2001 Aug 12 - Aug 18)
      01  8 12   01  8 13   01  8 14   01  8 15   01  8 16   01  8 17   01  8 18
prn   3d rss (cm)
  1       4          4          6          5          4          8          4   
  2                  4          5          9          8          4          4   
  3       5          7          7          4          6          4          6   
  4       9          7          6         10          5          4          4   
  5       6          6          4          4          4          6          6   
  6       5          7          3          5          5          9          5   
  7       8          3          4          8          5          3          3   
  8       8          6          7          7          4          5          4   
  9       7          8          8          7          9          7          7   
 10       8          4          4          4          5          8          4   
 11       8          6          9          6          8          8          6   
 13       8          6          8          8          6          4          6   
 14       6          8          7          8          9          9          3   
 17       6          7          6                                               
 18       4          7          5          9          9         12         14   
 20       4                     5          5          5          5          7   
 21      10         12          8         14         11          5              
 22       3          7          5          6          4          8          4   
 23      12         17         10         14         20         18         12   
 24      23         24          7          6          6          6          5   
 25       5          6          4          8         10          4          7   
 26       9          6          5          5          5          4          6   
 27       8          7          5          4          4          4          4   
 28       9          7          6          7          5          6          6   
 29       5          5          6          8          8          6          3   
 30       6          4          5          4          4          6          8   
 31      12         17         12         11         16          9         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 1127 (2001 Aug 12 - Aug 18)
 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        1.05        37.4        4.45        3.39    
ALIC   1.0    178.      -0.267e-02    54.0        5.00        3.70    
AREQ   2.0    30.9        170.        26.0        4.00        3.31    
ARTU   5.0    11.2      -0.757e-01    35.0        4.82        2.49    
AUCK*  6.9    24.3       0.498e-02    43.2        4.31        1.80    
BAHR*  7.0   0.546        764.        32.7        5.58        3.96    
BILI   7.0    11.9      -0.820e-01    40.9        5.16        2.55    
CAS1*  1.0    8.26       0.316e-03    27.0        4.00        1.09    
CIC1   6.0    60.1      -0.427e-02    43.7        4.84        2.90    
CRO1   7.0   0.505e+04    759.        37.0        5.00        3.65    
DAV1*  5.8    23.7      -0.220e-02    29.5        3.74        1.26    
EISL   7.0    65.1      -0.313e-03    61.7        4.74        2.65    
FAIR*  6.3    1.75       -5.18          .         3.46        1.03    
FORT*  7.0   0.265        7.68        84.0        5.00        1.87    
GALA   6.0    21.5      -0.844e-01    32.8        4.00        4.96    
GOUG   1.8   0.289e+06    511.        53.0        5.00        2.50    
GUAM*  6.0    22.4      -0.115        38.8        6.52        3.36    
HARB   2.0   0.204e+06    705.        50.7        4.00        2.26    
HNLC   1.0    30.7      -0.110        40.0        6.00        3.91    
HOB2*  3.0    9.66       0.303e-01    33.7        6.00        3.08    
HRAO   5.0    23.4      -0.701e-01    73.4        4.00        3.86    
IISC   7.0    24.4      -0.100        54.1        6.00        3.17    
IRKT*  6.0   0.203       0.169        56.8        5.03        2.70    
JPLM   1.0    13.4        210.        49.0        4.00        2.54    
KELY   2.7   0.216e+04  -0.973e-01    35.0        5.32        1.64    
KERG*  7.0    1.93        16.6        53.5        5.58        2.42    
KOKB*  6.8    12.9       0.921        54.5        5.15        1.18    
KUNM   5.8    51.5      -0.265e-01    73.5        6.00        2.37    
LAE1   7.0    22.5      -0.110        59.9        6.46        3.48    
LHAS*  1.0    14.9      -0.601e-02    33.0        5.00        4.04    
MAC1*  6.9    15.5       0.391e-02    31.7        3.75        2.05    
MAD2   1.0   0.175       -1.19        35.0        5.00        2.22    
MALI*  5.0   0.760e+05    281.        67.8        7.20        2.61    
MAS1*  6.0    2.17        59.3        43.0        4.53        2.90    
MBAR   1.0    29.6      -0.982e-01    29.0        6.00        3.31    
MCM4*  6.5   0.822e+04    22.4        49.5        5.08        1.10    
METS   0.9   0.203        968.        23.0        4.00        2.42    
MSKU   2.0    34.3      -0.759e-01    34.0        5.54        3.12    
NKLG   4.6   0.283e+06    538.        68.8        6.00        1.54    
NPLD   1.0   0.138       -8.07        52.0        6.00        2.59    
NRC1   6.4    .           .           44.1        5.05        3.38    
NRIL   4.0    10.2      -0.743e-01    21.7        4.76        2.62    
NTUS   6.9    11.1      -0.884e-02    62.0        7.01        3.04    
NVSK   1.0   0.289e+06   -4.40        71.0        7.00        2.68    
NYA1   3.0    276.      -0.367        29.3        4.00        1.66    
NYAL*  3.0    49.5      -0.195        38.0        4.35        1.39    
OBE2   1.0    1.92       0.155        75.0        6.00        2.64    
OHIG*  6.2    19.2       0.121e-02    46.3        4.18        2.38    
ONSA*  7.0    1.56        317.        43.1        4.74        2.60    
PIMO   3.9    23.5       0.572e-02    61.4        4.28        1.06    
REYK   2.0    10.7       0.144e-01    61.0        6.00        1.82    
RIOG   0.8    14.0      -0.664e-01    33.0        4.00        2.90    
SANT*  6.9    19.4      -0.788e-01    19.7        5.00       0.988    
SELE   4.0    151.      -0.396e-02    45.1        3.52        3.19    
SEY1   2.0    47.1      -0.684e-02    76.0        6.00        1.84    
SSIA   1.0   0.288e+06    503.        79.0        5.00        1.56    
THTI   7.0    5.41        849.        82.7        5.30        2.13    
TIDB*  7.0   0.235        318.        28.0        5.59        3.62    
TSKB*  7.0    1.26       -1.72        54.0        4.63        3.11    
USNO   1.0    .           .           41.0        6.00        3.86    
USUD   3.0   0.467        375.        30.0        5.08        3.56    
WHIT   3.0    31.5       -8.29        29.7        4.00        2.46    
WTZR*  6.8    69.3      -0.498        47.1        5.12        2.96    
YAR1*  2.0    540.      -0.175        63.4        3.75        1.55    
YAR2   5.0    5.82      -0.116e+05    29.8        4.63        3.30    
YELL*  7.0   0.184        1.22        42.9        5.00        1.98    
ZECK   1.0    20.2      -0.198e-02    33.0        4.00        3.64    
PRN01  7.0    3.56        190.        45.6        5.00        2.16    
PRN02  6.0    2.16       -59.7        49.0        5.00        2.49    
PRN03  7.0    1.88        56.8        48.1        5.00        2.31    
PRN04  6.8   0.809        608.        48.8        5.15        2.42    
PRN05  7.0    4.26        310.        49.2        5.00        2.33    
PRN06  7.0    6.83       -2.54        46.0        5.00        2.28    
PRN07  7.0    1.68        411.        47.7        5.00        2.39    
PRN08  7.0    3.08        478.        47.0        5.00        2.29    
PRN09  6.9    2.49       -2.93        46.2        5.00        2.07    
PRN10  7.0    2.31        8.59        51.3        5.00        2.60    
PRN11  7.0   0.493        3.35        50.2        5.00        2.16    
PRN13  7.0   0.277       -4.17        50.9        5.00        2.39    
PRN14  7.0   0.273       -121.        49.9        5.00        2.23    
PRN17  2.8    4.91        353.        53.7        5.36        2.18    
PRN18  7.0   0.424       -73.8        48.7        5.00        2.35    
PRN20  6.0   0.284       -91.3        47.3        5.00        2.35    
PRN21  6.0    3.60        4.64        51.2        5.00        2.18    
PRN22  6.9    3.38        10.7        51.0        5.00        2.41    
PRN23  7.0    5.70        18.2        49.7        5.16        2.41    
PRN24  6.7    2.83        72.7        48.7        5.88        2.40    
PRN25  6.7    2.43        16.4        46.8        5.29        2.30    
PRN26  7.0   0.559        560.        47.9        5.00        2.25    
PRN27  6.9    4.73        30.6        49.5        5.00        2.25    
PRN28  7.0   0.952       -12.0        50.4        5.00        2.34    
PRN29  7.0   0.879        627.        48.4        5.00        2.30    
PRN30  7.0    1.50       -31.5        47.9        5.00        2.26    
PRN31  7.0    3.80        58.5        49.7        5.00        2.16    
_______________________
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 12   01  8 13   01  8 14   01  8 15   01  8 16   01  8 17   01  8 18
prn   3d rss (cm)
  1     618        678        579        586        584        480        677   
  2                424        438        809        197        369        412   
  3     329        229        419        531        295        281        390   
  4     491        392        289        416        590        408        367   
  5     488        311        195        238        271        293        281   
  6     608        414        515        468        504        503        596   
  7     256        330        362        418        253        191        319   
  8     379        360        366        264        488        397        311   
  9     476        237        311        424        454        724        380   
 10     519        313        345        282        370        468        330   
 11     431        362        274        486        574        446        324   
 13     262        270        252        264        338        306        249   
 14     295        277        204        204        182        193        599   
 17     406        266       1000                                               
 18     215        186        201        461        253        217        659   
 20     419                   269        377        542        419        386   
 21     823        534        276        545       1016       1347              
 22     459        652        482        362        299        410        223   
 23     753        429        346        439        635        468        576   
 24     498        755        650        504        580        286        792   
 25     234        472        301        282        317        270        335   
 26     575        171        204        289        208        251        265   
 27     389        417        339        438        445        561        459   
 28     532        408        322        312        390        478        344   
 29     280        284        203        197        332        352        422   
 30     236        179        147        164        237        230        267   
 31     483        283        627        631        296        319        196   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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