Subject: [IGSREPORT-2464] Wk 0841 JPL Analysis Report
From: D C Jefferson
Date: Tue, 5 Mar 1996 11:13:55 PST

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IGS Electronic Report    Tue Mar  5 11:13:55 PST 1996      Message Number 2464
******************************************************************************

Author: D C Jefferson
Subject: Wk 0841 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0841 (DAYS 49-55, DATES 1996 Feb 18 - Feb 24)
******************************************************************************

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/0841.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08417.sum         This text file.
jpl08417.erp         Earth rotation parameters for GPS week 841.
jpl08417.snx         Ground station coordinates for GPS week 841, SINEX format.
jpl0841[0-6].sp3     GPS ephemerides for GPS week 841, sp3 format.
______________________________________________________________________________

Mean Orbit Repeatability (see table below): 18.8 cm

Beginning with this report, we include a one-line summary of all sites used
on at least one day in this week's orbit computations.  This line begins
with the string "global:   ", for easy location via text searching.  [We
propose that all centers include a line in this format in their subsequent 
IGS reports, so that common site comparisons may be facilitated.]

According to the file nanu1996.mes obtained from the IGS CBIS, PRN09 was
unusable on days 053 and 054 for maintenance/repositioning.  Data from this 
this satellite were deliberately not used on day 053.  Additionally, data 
from PRN09 did not meet our convergence criteria on days 054 and 055, and
were automatically excluded from the analyses of these days as well.

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: ONSA (not ALGO) used as reference clock days 049-051.
WARNING: Data from GOLD, HART, KELY, MALI, TIBB excluded day 049.
WARNING: Data from BOGT, FORT, GOPE, LAMA, PERT excluded day 050.
WARNING: Data from LAMA, MATE, TABL, TIBB, ZWEN excluded day 051.
WARNING: Data from MATE, PIN1, POTS, ZWEN excluded day 052.
WARNING: Data from PRN09 excluded days 053-055.
WARNING: Data from HOLC, KOKB, MATE, PIN1, POTS, ZWEN excluded day 053.
WARNING: Data from CHIL, CRFP, HOLC, KRAK, MOIN, PIN1, POTS, SANT, TABL 
         excluded day 054.
WARNING: Data from BOGT, HOLC, KRAK, LAMA, TIBB, ZWEN excluded day 055.

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 841 (1996 Feb 18 - Feb 24)
     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
50131.50 -21946  35416   466264  2114    5    5    12     12 37 11 24  -51  386 
50132.50 -22045  35814   464132  2149    4    5    12     12 37 12 24  -43  372 
50133.50 -22120  36170   461973  2170    5    5    12     12 37 12 24   11  352 
50134.50 -22145  36534   459805  2166    5    5    12     12 37 10 24  -25  338 
50135.50 -22190  36802   457644  2155    5    6    12     12 37 10 23   19  347 
50136.50 -22167  37163   455503  2127    5    7    13     13 37  9 23    8  368 
50137.50 -22161  37566   453394  2091    5    5    13     13 37 11 23   41  405 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 841:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 841 (1996 Feb 18 - Feb 24)
      96  2 18   96  2 19   96  2 20   96  2 21   96  2 22   96  2 23   96  2 24
prn   3d rss (m)
  1       0.14       0.18       0.11       0.10       0.23       0.24       0.10
  2       0.07       0.09       0.21       0.24       0.19       0.15       0.09
  4       0.06       0.11       0.17       0.16       0.08       0.17       0.11
  5       0.08       0.09       0.10       0.12       0.08       0.12       0.09
  6       0.22       0.14       0.36       0.31       0.21       0.23       0.23
  7       0.22       0.23       0.28       0.31       0.25       0.16       0.17
  9       0.14       0.07       0.09       0.1                                  
 14       0.18       0.20       0.20       0.14       0.13       0.16       0.13
 15       0.26       0.20       0.18       0.16       0.16       0.22       0.13
 16       0.20       0.22       0.43       0.62       0.13       0.24       0.14
 17       0.10       0.20       0.28       0.15       0.18       0.17       0.10
 18       0.16       0.13       0.20       0.22       0.14       0.11       0.17
 19       0.23       0.27       0.14       0.17       0.20       0.24       0.29
 20       0.09       0.14       0.18       0.17       0.20       0.18       0.10
 21       0.14       0.18       0.14       0.12       0.13       0.21       0.19
 22       0.28       0.10       0.19       0.32       0.20       0.09       0.16
 23       0.24       0.27       0.35       0.30       0.35       0.35       0.32
 24       0.14       0.21       0.14       0.30       0.10       0.18       0.13
 25       0.16       0.23       0.18       0.14       0.19       0.24       0.18
 26       0.25       0.11       0.23       0.26       0.15       0.15       0.10
 27       0.12       0.09       0.12       0.18       0.19       0.16       0.14
 28       0.20       0.13       0.28       0.21       0.28       0.16       0.23
 29       0.24       0.23       0.24       0.25       0.15       0.23       0.17
 31       0.32       0.35       0.26       0.30       0.17       0.24       0.20
_______________________
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 841 (1996 Feb 18 - Feb 24)
 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)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALBH   3.0    6.82       -.744        42.1        3.70        2.84    
ALGO*  6.6    .129        3.20        41.4        4.31        2.83    
ANKR   1.9    125.        2.33        66.4        4.56        2.42    
AREQ   7.0    88.3        .466        43.0        4.73        1.98    
AUCK   1.0    80.3       -.932        37.0        5.00        3.32    
BRMU   1.7    111.       -.906        37.5        4.56        2.99    
CHAT   7.0    112.        .470        78.4        5.31        2.66    
CICE   1.0    94.7       -.908        29.0        4.00        2.83    
CRO1   7.0    133.        .465        44.3        5.92        1.88    
DRAO   1.0    1.04        11.8        30.0        4.00        3.28    
EISL   6.7    .728e+07   -.138e+05    39.6        6.44        2.44    
FAI2   7.0    .110       -.100e-01    53.3        4.15        2.30    
FAIR*  4.9    .111       -8.33          .         4.44        2.08    
FORT   2.9    .135       -.808        50.7        6.36        2.57    
GODE   3.0    .233        4.42        42.3        4.00        2.29    
GOL2   6.9    .624e+04    23.7        62.3        4.47        2.51    
GRAS   1.0    78.9       -.925        29.0        3.00        2.71    
GUAM   7.0    98.7        .470        49.1        6.91        2.44    
HART*  6.0    45.7        .501          .         6.69        1.93    
IISC   4.8    72.0        1.04        67.3        4.63        2.19    
IRKT   5.9    .436        .600        51.2        4.54        3.07    
JPLM   5.0    82.6        .136e+04    26.8        3.69        3.00    
KERG   7.0    150.       -659.          .         5.61        2.35    
KIRU   1.0    5.57        10.8        47.0        7.00        1.89    
KIT3   4.8    120.        1.11        59.7        4.45        3.06    
KOKB*  5.9    .226        .673        61.1        5.55        2.44    
KOSG*  6.0    123.        18.5        36.8        2.85        2.36    
LPGS   6.6    .162e+07    494.        107.        5.15        1.79    
MADR*  5.8    141.        .344          .         4.36        2.17    
MDO1   1.0    44.9       -.187        33.0        5.00        2.72    
NLIB   1.0    363.       -1.51        41.0        4.00        2.18    
NOTO   5.0    .144       -3.01        33.4        4.22        2.97    
OHIG   6.1    .340e+05   -2.72        61.1        4.31        1.09    
ONSA   6.8    .128       -3.72        37.4        3.00        2.16    
PAMA   6.9    .165e+04    .387          .         10.9        2.02    
PERT   5.9    1.98       -1.93        50.7        4.55        3.19    
REYK   7.0    83.8        .470        55.3        6.44        1.87    
SANT*  4.6    .363        2.84          .         4.51        1.54    
SHAO   5.9    94.6        .171        39.8        3.71        2.51    
STJO   6.0    3.60        1.47        42.7        4.36        2.74    
THU1   7.0    72.7        .479        45.9        5.03        2.63    
TID2   6.9    60.5        .811        42.0        4.64        3.05    
TIDB*  5.9    .125        2.87          .         4.35        2.71    
TROM*  7.0    8.30        271.          .         4.76        1.70    
TSKB   3.8    18.0        .175        46.2        4.29        2.89    
USUD   3.0    501.        1.62        37.7        4.00        3.00    
VILL   7.0    23.3        .552e-01    61.5        4.32        2.80    
WETT*  7.0    .829        1.40          .         6.65        2.25    
WLPS   1.0    145.       -.933        479.        5.00        3.30    
YAR1*  7.0    1.88        5.85          .         4.00        2.59    
YELL*  6.9    426.        1.85        42.3        4.61        1.99    
PRN01  6.9    79.9        498.        49.1        5.16        2.24    
PRN02  7.0    82.1       -233.        50.7        4.87        2.77    
PRN04  6.9    79.4        12.8        47.8        5.15        2.08    
PRN05  6.9    80.9        26.3        50.4        4.73        2.28    
PRN06  6.7    82.1        6.97        51.7        5.30        2.04    
PRN07  6.8    80.9        717.        49.3        5.31        2.33    
PRN09  4.0    84.0       -10.5        50.5        5.00        1.82    
PRN14  7.0    82.5        13.3        47.9        5.00        2.42    
PRN15  7.0    3.49        274.        51.6        5.15        2.50    
PRN16  6.9    80.2        .989        52.6        5.59        2.26    
PRN17  7.0    79.5       -107.        51.4        5.15        2.36    
PRN18  6.9    82.5       -6.37        52.5        5.00        2.08    
PRN19  7.0    80.6        385.        48.6        4.87        2.50    
PRN20  6.9    83.5        6.28        50.1        4.60        2.15    
PRN21  7.0    82.6       -14.1        49.9        5.00        2.46    
PRN22  6.9    84.7        287.        50.5        5.30        2.30    
PRN23  7.0    80.1        7.72        45.2        5.00        2.40    
PRN24  6.8    81.2        92.9        52.8        5.72        1.88    
PRN25  6.9    81.2       -.515        48.5        5.31        2.16    
PRN26  7.0    82.5       -153.        51.1        5.16        2.38    
PRN27  6.9    81.3        20.3        45.3        4.74        2.39    
PRN28  6.6    2.35        67.7        59.4        4.45        2.65    
PRN29  6.9    82.3        7.28        48.0        4.87        2.53    
PRN31  6.6    82.7        325.        49.6        5.15        2.46    
_______________________
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
      96  2 18   96  2 19   96  2 20   96  2 21   96  2 22   96  2 23   96  2 24
prn   3d rss (m)
  1       4.5        4.8        4.3        5.1        5.5        6.5        7.0 
  2       6.3        7.1        7.4        5.3        5.3        5.1        5.9 
  4       2.2        2.2        1.9        3.1        2.1        1.8        2.8 
  5       7.2        6.2        5.4        6.9        6.5        5.1        6.2 
  6       7.4        7.4        5.9        5.7        7.2        5.9        8.4 
  7       5.9        6.0        7.1        7.2        7.6        7.3        8.0 
  9       4.5        4.1        4.4        4.3                                  
 14       5.9        5.1        5.7        6.2        6.8        4.9        5.0 
 15       4.6        3.3        2.9        4.8        4.4        4.5        5.1 
 16      17.1       35.7       33.2       27.9       20.4       18.0        8.3 
 17       3.9        3.6        3.5        3.6        4.1        4.2        7.0 
 18       4.4        5.1        4.7        4.7        4.8        5.4        5.4 
 19       4.1        3.1        2.4        3.0        4.0        3.3        2.0 
 20       5.7        6.0        5.8        6.4        6.6        4.6        5.2 
 21       7.6        8.6        8.6        8.9        8.5        6.6        6.0 
 22       4.3        3.2        3.6        3.9        3.4        3.8        4.7 
 23       4.9        5.2        6.5        8.2        8.6        6.2        5.8 
 24       2.6        2.6        2.6        2.8        2.8        3.2        2.6 
 25       3.0        3.2        3.9        4.7        4.6        4.7        4.6 
 26       3.6        3.7        3.9        4.3        5.0        4.3        4.3 
 27       3.0        3.7        3.3        3.1        5.0        4.7        3.8 
 28       4.9        4.7        3.8        5.1        5.9        6.0        6.9 
 29       5.3        5.0        4.6        4.5        4.2        4.2        5.4 
 31       3.1        2.8        3.9        4.8        5.3        3.7        4.3 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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