Subject: [IGSREPORT-3749] Wk 0904 JPL Analysis Report
From: D C Jefferson
Date: Fri, 16 May 1997 9:36:13 PDT

******************************************************************************
IGS Electronic Report    Fri May 16  9:36:13 PDT 1997      Message Number 3749
******************************************************************************

Author: D C Jefferson
Subject: Wk 0904 JPL Analysis Report

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 0904 (DAYS 124-130, DATES 1997 May 04 - May 10)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb

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 (128.149.70.41),
directory pub/jpligsac/0904.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09047.sum         This text file.
jpl09047.erp         Earth rotation parameters for GPS week 904.
jpl09047.snx         Ground station coordinates for GPS week 904, SINEX format.
jpl0904[0-6].sp3     GPS ephemerides for GPS week 904, sp3 format.
jpl0904[0-6].tro     Ground station troposphere estimates for GPS week 904.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 12.0 cm

A clock step of approximately 26 microseconds was detected for GPS18 on day
126 at about 00:50 UT.

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: PIE1 (not ALGO) used as reference clock days 124 and 125.
WARNING: NLIB (not ALGO) used as reference clock days 126 and 127.
WARNING: Data from JOZE, KIT3, SNI1 excluded day 124.
WARNING: Data from KIT3 excluded day 125.
WARNING: Data from KIT3, NYAL excluded day 126.
WARNING: Data from TROM excluded day 127.
WARNING: Data from VCIO excluded day 128.
WARNING: Data from BRU1, CAS1, FMC2, MKEA, NYAL, SHK1, STL3, TAIW excluded               day 130.

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 904 (1997 May 04 - May 10)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
50572.50 -15488  44127  -365820  2078    3    3     9      9 37 10 25  266  272 
50573.50 -15194  44465  -367911  2104    3    3     9      9 37 10 25  280  351 
50574.50 -14929  44789  -370061  2196    3    3     9      9 37 11 25  257  326 
50575.50 -14668  45104  -372280  2243    3    3     9      9 37 11 25  273  310 
50576.50 -14373  45401  -374528  2252    3    3     9      9 37 11 25  313  286 
50577.50 -14077  45673  -376776  2245    4    4     9      9 37 10 25  292  307 
50578.50 -13760  45997  -379026  2255    3    3     9      9 37 11 25  286  310 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 904:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 904 (1997 May 04 - May 10)
      97  5  4   97  5  5   97  5  6   97  5  7   97  5  8   97  5  9   97  5 10
prn   3d rss (cm)
  1      10         17         18         12         15          9         11   
  2      22         18         13         16          9         20         12   
  3      33         38         35         31         24         21         31   
  4       4          5         10          8         14         14         11   
  5      17         12         10         11         17         16         14   
  6       7         10         10         11         13          9         14   
  7      11         13         20         18         10         14         11   
  9      17         20         16         14         13         24         22   
 10       5          8         12          9          7          7          7   
 14       8         10         15         11          9         11          8   
 15       9          5          6         15         11         10          9   
 16       9          7         16          9         12         14         18   
 17      11         11         10         12         13         19         17   
 18      10          8         10         11          7          9         12   
 19      16         14         12          8         13         11         15   
 21      14         17         18         13         11         13         29   
 22       9          6         10         17          9          7         17   
 23      21         11         16         10          9         20         19   
 24      14         20         11          9         12         11          9   
 25      15          8         13         19          8         12         11   
 26      16         26         32         22         16         24         15   
 27       7          8          9          8          7         14          7   
 29       7          5         11         11          7         13          9   
 30       9          9         13         18         14         12         15   
 31      14         16         17         24         26         17         14   
_______________________
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 904 (1997 May 04 - May 10)
 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*  4.9    .535e-01   -.635        45.5        4.00        2.97    
ANKR    .9    140.       -.186        59.0        5.00        2.86    
ASC1   5.9    .109e+07   -52.6        75.3        5.79        1.74    
AUCK   6.0    82.5       -.161        40.3        4.18        2.75    
BAHR   7.0    .512        262.        50.7        5.48        3.94    
BOGT   5.6    .164e+04   -.386        54.5        6.72        1.58    
BRAZ   1.0    91.5       -.249        55.0        4.00        2.29    
CAS1   2.0    7.08        .214e+04    44.0        5.51        2.01    
CASA   4.0    34.2        388.        40.3        4.53        2.89    
CHAT   1.0    103.       -.684        79.0        5.00        2.79    
COCO   6.9    .315e+06   -.205e+04    37.6        7.08        2.87    
CRO1   1.0    147.       -.236        50.0        6.00        2.52    
DAV1   4.0    10.8        .296e+04    31.8        5.00        1.68    
DGAR   5.9    99.3       -.249        67.2        6.94        1.90    
DRAO   2.0    .897        2.77        35.5        4.53        3.19    
FAIR*  7.0    9.27       -.223        35.5        4.16        2.61    
FLIN   2.0    84.6       -.228e-01    53.0        4.00        2.69    
FORT   4.7    .143       -62.7        50.4        7.40        3.16    
GOL2*  7.0    2.53       -.202        43.6        4.89        3.15    
GUAM   7.0    128.       -.250        73.4        8.20        2.39    
HART*  7.0    12.1        5.02        44.2        4.60        2.76    
IISC   4.8    87.8       -.154        71.1        6.66        2.57    
IRKT   4.7    .215       -.456        63.0        5.00        3.00    
KELY    .7    .413e+04   -1.80        40.0        5.00        2.09    
KERG   5.0    147.        118.          .         5.65        2.49    
KIRU   1.0    229.       -.831e-01    52.0        6.00        2.55    
KOKB*  6.6    92.1       -.280        74.5        6.17        1.65    
KOSG*  7.0    7.26       -33.6        41.0        4.63        2.42    
KOUR   1.0    2.56        6.08          .         8.00        2.18    
KWJ1   7.0    132.       -.249        66.5        8.74        1.62    
LHAS   6.8    115.       -.220        70.1        5.16        2.42    
MAC1   5.9    81.6       -.163        30.0        4.00        2.50    
MADR*  7.0    .111       -.104          .         7.30        2.53    
MALI   2.5    .497e+05   -13.0          .         8.06        2.37    
MAS1   5.9    607.       -1.24        41.9        4.78        2.43    
MCM4   7.0    90.0       -.234        33.0        4.16        2.14    
MDO1   2.0    1.10       -.707        33.5        4.00        2.82    
METS   1.0    .205       -2.64        68.0        4.00        2.43    
MKEA   4.0    .664e-01   -.390        53.5        6.27        2.65    
NLIB   1.9    .           .           48.5        4.53        2.92    
NRC1   1.0    .719e-01    .247        51.0        5.00        2.26    
NYAL   1.0    .113        .709e-01      .         5.00        2.06    
ONSA   1.0    .317       -2.22        42.0        4.00        2.04    
PERT   7.0    2.36       -15.4        53.2        5.12        2.88    
PIE1   2.0    .           .           41.5        5.52        2.63    
RCM6   6.0    96.0       -.250        59.2        6.38        2.71    
REYK   1.0    83.2       -.268        60.0        6.00        2.48    
SANT*  5.9    .106e+04    .302        36.9        5.08        1.91    
SHAO   1.0    90.9       -.288        46.0        5.00        2.89    
STJO   3.0    3.27        .166        39.4        5.00        2.81    
TAHI   6.7    473.       -.260        80.5        6.61        2.25    
THU1   6.0    73.9       -.262        44.0        5.18        2.83    
TIDB   5.9    .158        .848          .         5.36        2.79    
USUD   6.0    2.68        4.15        37.7        6.20        2.90    
WTZR*  6.6    45.1       -.755        59.5        4.77        2.68    
WUHN   5.9    .187e+04   -20.6        52.6        5.69        2.64    
YAR1*  5.9    801.       -2.66          .         3.92        2.48    
YELL*  7.0    25.7       -.308        44.5        4.31        1.57    
PRN01  7.0    81.8        18.8        51.5        5.87        2.39    
PRN02  7.0    79.7       -361.        56.9        5.31        2.49    
PRN03  7.0    81.6        10.9        51.9        5.58        2.40    
PRN04  6.6    82.2        26.0        51.7        5.74        2.32    
PRN05  7.0    81.4        95.2        55.2        5.59        2.44    
PRN06  7.0    80.7        4.33        50.2        5.59        2.80    
PRN07  7.0    80.8        744.        54.5        5.73        2.20    
PRN09  7.0    80.4       -37.4        51.3        5.87        2.40    
PRN10  7.0    78.8        7.20        53.6        5.61        2.56    
PRN14  7.0    81.3        18.4        52.4        5.18        2.30    
PRN15  6.6    3.31        422.        55.0        5.45        2.28    
PRN16  7.0    79.7        10.6        57.9        5.62        2.35    
PRN17  6.8    80.7       -148.        52.5        5.76        2.47    
PRN18  6.8    .248e+04    9.06        49.3        5.16        2.46    
PRN19  7.0    80.0        222.        52.5        5.31        2.30    
PRN21  7.0    80.5        51.4        55.3        5.60        2.45    
PRN22  7.0    81.4        389.        51.9        5.75        2.52    
PRN23  7.0    80.8        12.3        53.0        5.73        2.36    
PRN24  6.6    80.4        438.        51.3        6.32        2.56    
PRN25  7.0    81.0       -5.46        53.3        6.08        2.19    
PRN26  7.0    80.2       -167.        51.2        5.87        2.24    
PRN27  7.0    80.8        27.6        52.7        5.46        2.48    
PRN29  7.0    83.2        9.71        52.4        5.15        2.50    
PRN30  7.0    81.5       -53.8        53.6        5.86        2.46    
PRN31  7.0    80.7        346.        50.8        5.30        2.36    
_______________________
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
      97  5  4   97  5  5   97  5  6   97  5  7   97  5  8   97  5  9   97  5 10
prn   3d rss (cm)
  1     213        211        208        245        300        344        476   
  2     580        752        375        365        480        469        707   
  3     341        254        435        355        291        251        235   
  4     446        288        495        260        798        897        596   
  5     208        188        183        183        214        275        404   
  6     510        484        351        342        449        824        673   
  7     374        326        387        433        899        275        358   
  9     273        586        438        670        458        650        545   
 10     176        199        230        563        197        209        254   
 14     489        768        419        392        496        490        715   
 15     364        330        217        281        252        290        307   
 16     546       1419        276        824        920        710        345   
 17     274        333        265        280        282        237        252   
 18     416        490        568        602        391        404        596   
 19     401        504        147        326        835        354        958   
 21     307        281        333        536        544        308        317   
 22     408        522        359        355        336        360        491   
 23     336        352        316        400        587        604        418   
 24     300        472        372        578        309        350        329   
 25     482        532        241        261        439        381        467   
 26     269        271        299        315        389        366        165   
 27     344        239        453        767        454        437        422   
 29     319        256        237        258        211        250        331   
 30     164        245        237        268        291        252        262   
 31     281        502        629        353        342        229        183   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo ankr asc1 auck bahr bogt braz cas1 casa chat coco cro1 dav1 dgar drao fair flin fort gol2 guam hart iisc irkt kely kerg kiru kokb kosg kour kwj1 lhas mac1 madr mali mas1 mcm4 mdo1 mets mkea nlib nrc1 nyal onsa pert pie1 rcm6 reyk sant shao stjo tahi thu1 tidb usud wtzr wuhn yar1 yell

[Mailed From: [email-masked]]