Subject: [IGSREPORT-3451] Wk 0891 JPL Analysis Report
From: D C Jefferson
Date: Thu, 13 Feb 1997 12:18:01 PST

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IGS Electronic Report    Thu Feb 13 12:18:01 PST 1997      Message Number 3451
******************************************************************************

Author: D C Jefferson
Subject: Wk 0891 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0891 (DAYS 33-39, DATES 1997 Feb 02 - Feb 08)
******************************************************************************

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/0891.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08917.sum         This text file.
jpl08917.erp         Earth rotation parameters for GPS week 891.
jpl08917.snx         Ground station coordinates for GPS week 891, SINEX format.
jpl0891[0-6].sp3     GPS ephemerides for GPS week 891, sp3 format.
jpl0891[0-6].tro     Ground station troposphere estimates for GPS week 891.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

According to the file nanu1997.mes obtained from the IGS CBIS, PRN23 was
unusable on day 035 for maintenance/repositioning.  Data from this satellite
did not meet our initial convergence criteria on this nor the following day
(036) and have been excluded from these days' analyses.

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 PRN23 excluded days 034 and 035 due to a manuever.
WARNING: Data from AUCK, CHAT, HFLK, WTZR excluded day 033.
WARNING: Data from AUCK, CHAT, HFLK, NYAL, WHI1, WTZR excluded day 034.
WARNING: Data from COSO, WEST, WTZR excluded day 035.
WARNING: Data from CMBB excluded day 036.
WARNING: Data from COCO excluded day 039.

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 891 (1997 Feb 02 - Feb 08)
     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
50481.50 -11560  14906  -167887  1348    2    3     7      7 37 11 25 -314  185 
50482.50 -11833  15111  -169221  1320    2    3     7      7 37 11 25 -297  254 
50483.50 -12101  15356  -170573  1384    2    3     7      7 37 11 24 -295  260 
50484.50 -12351  15592  -171983  1436    2    3     7      7 37 12 24 -228  273 
50485.50 -12573  15843  -173410  1419    2    3     7      7 37 12 25 -206  211 
50486.50 -12725  16040  -174852  1464    2    3     7      7 37 12 25 -184  213 
50487.50 -12915  16307  -176320  1472    3    3     7      7 37 12 25 -220  266 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 891:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 891 (1997 Feb 02 - Feb 08)
      97  2  2   97  2  3   97  2  4   97  2  5   97  2  6   97  2  7   97  2  8
prn   3d rss (m)
  1       0.14       0.12       0.12       0.11       0.11       0.08       0.12
  2       0.08       0.06       0.08       0.06       0.05       0.06       0.07
  3       0.21       0.26       0.30       0.27       0.26       0.19       0.08
  4       0.08       0.14       0.23       0.15       0.08       0.23       0.14
  5       0.18       0.09       0.10       0.06       0.06       0.06       0.09
  6       0.12       0.10       0.09       0.09       0.07       0.11       0.11
  7       0.06       0.06       0.07       0.08       0.07       0.09       0.09
  9       0.14       0.11       0.12       0.07       0.09       0.07       0.11
 10       0.10       0.13       0.06       0.10       0.08       0.09       0.12
 14       0.18       0.11       0.12       0.16       0.16       0.19       0.23
 15       0.10       0.11       0.10       0.10       0.09       0.09       0.10
 16       0.16       0.14       0.20       0.10       0.11       0.12       0.15
 17       0.22       0.12       0.10       0.16       0.14       0.12       0.14
 18       0.25       0.13       0.08       0.11       0.10       0.17       0.21
 19       0.26       0.07       0.07       0.05       0.12       0.17       0.09
 21       0.12       0.09       0.08       0.10       0.09       0.12       0.10
 22       0.15       0.13       0.10       0.16       0.12       0.10       0.07
 23       0.17       0.2                              0.2        0.12       0.11
 24       0.14       0.16       0.07       0.13       0.10       0.12       0.12
 25       0.16       0.10       0.12       0.09       0.07       0.07       0.07
 26       0.21       0.15       0.20       0.09       0.11       0.09       0.12
 27       0.10       0.15       0.10       0.10       0.08       0.11       0.17
 29       0.17       0.24       0.12       0.19       0.12       0.08       0.14
 30       0.15       0.07       0.10       0.09       0.06       0.07       0.06
 31       0.14       0.08       0.11       0.10       0.10       0.11       0.16
_______________________
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 891 (1997 Feb 02 - Feb 08)
 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    .           .           29.3        3.87        3.45    
ANKR   2.7    109.       -.229        42.8        3.69        3.26    
ASC1   5.8    104.       -.254        64.9        5.00        2.78    
BAHR   5.8    .551        264.        34.3        4.51        3.67    
BOGT   5.5    96.3       -.231        50.4        6.88        3.21    
BRUS   6.0    .411       -.271        47.5        3.85        3.07    
CAS1   3.9    19.7        583.        21.0        4.27        1.64    
CHAT   5.0    81.4       -.324        69.8        5.22        3.03    
COCO   5.8    158.       -.486e+04    42.8        6.04        3.06    
CRO1   1.0    97.5       -.431        25.0        6.00        2.73    
DAV1   1.9    25.8        369.        22.0        4.54        1.94    
DGAR   6.0    74.7       -.296        31.6        6.72        3.87    
FAIR*  6.9    204.        .939        23.8        4.16        2.39    
FORT   6.8    .185       -.591        32.5        7.91        3.21    
GOL2*  7.0    .154       -.499        44.0        4.00        3.00    
GUAM   7.0    90.0       -.274        36.2        7.19        3.11    
HART*  6.8    752.       -1.29        28.3        5.31        3.19    
IISC   5.5    74.9       -.266        55.2        5.02        3.08    
IRKT   4.9    .225        .270        37.6        4.70        3.34    
KELY    .6    .264e+04   -1.74        28.0        5.00        1.41    
KERG   5.0    .178e+06    42.1          .         6.11        3.07    
KIRU   1.0    2.51        .570        35.0        7.00        2.34    
KIT3   2.8    91.1       -.305        44.0        5.00        3.48    
KOKB*  7.0    .134       -.334        42.1        5.15        3.33    
KOSG*  7.0    8.46       -8.05        31.5        3.16        2.43    
KWJ1   6.9    80.3       -.270        42.3        7.90        2.95    
LHAS   5.8    .392e+06    39.7        41.2        4.14        2.24    
MAC1   4.5    80.9       -.238        18.5        3.68        2.50    
MADR*  6.9    .764        25.2          .         6.46        2.44    
MALI   6.0    24.9       -70.9          .         5.84        3.98    
MAS1   7.0    126.       -.602        16.6        4.04        2.88    
MCM4   6.9    97.9       -.263        29.5        3.87        1.55    
MKEA   5.0    .161       -.686        26.6        6.00        3.18    
NOTO   1.0    .103       -1.01        28.0        5.00        3.62    
OHIG   5.6    .336e+05   -3.12        49.2        4.00        1.11    
PAMA   6.9    122.       -.272          .         10.4        2.87    
PERT   7.0    3.07       -5.20        37.7        5.03        3.56    
RCM6   6.0    73.5       -.250        56.6        4.18        3.22    
REYK   1.9    74.8       -.254        50.5        5.51        2.04    
SANT*  6.1    .109e+04   -.265        30.1        5.00        1.42    
SEY1   1.0    87.3       -.126        99.0        10.0        2.29    
SHAO   1.0    81.0       -.229        27.0        4.00        3.40    
STJO   1.0    2.07        .441        22.0        4.00        3.22    
THU1   6.0    67.3       -.247        32.9        4.53        2.73    
TID2*  6.8    47.2       -.230        28.0        5.76        3.13    
USUD   6.0    .894        3.45        22.6        3.86        3.38    
WTZR*  3.6    .162       -.311        42.8        4.00        2.84    
WUHN   2.0    .255e+04   -233.        33.2        5.00        3.11    
YAR1*  7.0    66.2       -.353          .         4.06        3.20    
YELL*  7.0    .329       -.170        31.6        3.87        1.95    
PRN01  7.0    79.4        12.4        41.5        5.31        2.45    
PRN02  7.0    81.2       -333.        39.8        5.15        2.92    
PRN03  6.6    81.0        96.4        39.9        5.16        2.70    
PRN04  7.0    79.7        11.3        37.1        5.60        2.42    
PRN05  7.0    81.3        80.8        38.2        5.16        3.10    
PRN06  6.8    83.0        3.98        37.1        5.45        2.65    
PRN07  6.8    80.4        738.        38.8        5.15        2.71    
PRN09  7.0    83.6       -27.1        39.3        5.45        3.02    
PRN10  7.0    79.4        3.35        39.1        5.45        2.59    
PRN14  7.0    83.7        16.7        38.8        5.16        2.54    
PRN15  7.0    3.46        389.        41.7        4.87        2.66    
PRN16  7.0    80.4        42.2        37.9        5.00        2.60    
PRN17  7.0    81.2       -139.        39.0        5.30        2.59    
PRN18  6.8    81.9        21.8        39.8        5.62        2.42    
PRN19  7.0    81.1        249.        39.8        4.87        2.68    
PRN21  7.0    81.4        29.6        42.4        5.59        2.58    
PRN22  7.0    79.2        369.        39.9        5.59        2.55    
PRN23  5.0    83.1        8.96        39.9        6.00        2.57    
PRN24  7.0    85.4        267.        36.3        5.30        2.66    
PRN25  7.0    81.5       -5.14        36.4        5.16        2.50    
PRN26  7.0    80.5       -115.        39.6        5.86        3.11    
PRN27  7.0    78.9        17.3        38.6        5.15        2.70    
PRN29  7.0    79.9        5.99        37.1        5.00        2.94    
PRN30  7.0    80.9       -33.6        39.3        5.31        2.68    
PRN31  6.6    82.5        200.        39.1        5.00        2.76    
_______________________
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  2  2   97  2  3   97  2  4   97  2  5   97  2  6   97  2  7   97  2  8
prn   3d rss (m)
  1       5.0        4.3        5.5        4.9        5.2        5.7        6.5 
  2       4.4        4.4        5.7        5.5        4.7        3.5        3.6 
  3       9.2        6.4        5.6        6.4        6.0        6.5        6.2 
  4       2.2        1.7        3.0        4.1        4.6        3.0        3.3 
  5       3.2        3.6        4.8        4.2        4.6        4.7        4.2 
  6       7.2        7.7        8.9        7.6        6.9        7.4        6.4 
  7       7.9        7.5        8.3        7.6        7.6        8.1        7.5 
  9       3.4        4.0        3.8        2.9        1.9        2.1        2.4 
 10       7.9        6.2        6.1        7.1        7.1        5.8        5.9 
 14       4.6        6.9       10.6       25.2        4.6        9.1        4.4 
 15       3.9        4.0        3.7        4.4        4.1        3.9        3.9 
 16       3.9        3.8        5.5        8.9        3.0        2.7        2.5 
 17       4.2        4.5        5.7        7.7        8.0        7.5        6.1 
 18       7.9        8.2        3.0        6.0        7.2       11.4        5.0 
 19       2.7        2.2        2.1        2.1        3.7        2.7        1.9 
 21       8.8        8.6        7.5        9.5        6.6        6.0        4.8 
 22       5.7        7.0        7.4        6.4        6.9        5.3        6.2 
 23       6.4        4.3                             28.5        8.0       10.5 
 24       5.2        5.7        5.0        6.1        6.1        4.1        5.9 
 25       4.3        6.0        3.6        5.1        5.1        4.6        4.7 
 26       3.1        3.5        3.8        3.2        4.4        4.8        3.3 
 27       4.1        3.8        3.7        2.6        4.0        2.7        2.1 
 29       2.9        3.0        3.8        5.9        2.8        2.5        2.1 
 30       3.9        1.8        2.8        5.0        4.9        2.7        1.7 
 31       6.3        5.1        5.4        6.1        4.0        3.9        6.0 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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