Subject: [IGSREPORT-2648] Wk 0851 JPL Analysis Report
From: D C Jefferson
Date: Mon, 13 May 1996 14:27:51 PDT

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IGS Electronic Report    Mon May 13 14:27:51 PDT 1996      Message Number 2648
******************************************************************************

Author: D C Jefferson
Subject: Wk 0851 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0851 (DAYS 119-125, DATES 1996 Apr 28 - May 04)
******************************************************************************

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/0851.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08517.sum         This text file.
jpl08517.erp         Earth rotation parameters for GPS week 851.
jpl08517.snx         Ground station coordinates for GPS week 851, SINEX format.
jpl0851[0-6].sp3     GPS ephemerides for GPS week 851, sp3 format.
______________________________________________________________________________

Mean Orbit Repeatability (see table below): 16.8 cm

Beginning this week, we add a new station to our global network.  As with most
stations, this site is 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)
ASC1 (Ascension Island):    6118528.8028  -1572345.4018  -876452.5413

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 MATE excluded day 119.
WARNING: Data from CIT1, MATE excluded day 120.
WARNING: Data from CHIL, DAM2, HOLC, MATE, TROM excluded day 121.
WARNING: Data from GRAS, HOLC, SANT, ZWEN excluded day 122.
WARNING: Data from GRAS, NYAL, SANT, ZWEN excluded day 123.
WARNING: Data from GRAS excluded day 124.
WARNING: Data from CMP9, MATE, MDO1, TIBB, TROM excluded day 125.

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 851 (1996 Apr 28 - May 04)
     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
50201.50  -7086  56730   309284  2224    3    3     9      9 37 10 25  420  178 
50202.50  -6642  56960   307039  2265    3    3     9      9 37 11 25  412  197 
50203.50  -6232  57219   304731  2351    3    3     9      9 37 11 25  418  169 
50204.50  -5853  57441   302344  2424    3    4     9      9 37 10 25  344  133 
50205.50  -5552  57600   299913  2438    3    4     9      9 37 12 25  383  129 
50206.50  -5207  57758   297465  2458    3    4     9      9 37 12 25  371  126 
50207.50  -4840  57900   295002  2468    3    4     9      9 37 11 25  421  113 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 851:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 851 (1996 Apr 28 - May 04)
      96  4 28   96  4 29   96  4 30   96  5  1   96  5  2   96  5  3   96  5  4
prn   3d rss (m)
  1       0.12       0.10       0.10       0.15       0.12       0.16       0.23
  2       0.20       0.21       0.20       0.33       0.18       0.13       0.18
  3       0.47       0.44       0.47       0.67       0.57       0.55       0.49
  4       0.10       0.09       0.17       0.23       0.10       0.09       0.07
  5       0.31       0.12       0.14       0.14       0.10       0.12       0.11
  6       0.11       0.09       0.16       0.15       0.21       0.32       0.08
  7       0.16       0.16       0.16       0.16       0.12       0.14       0.17
  9       0.18       0.10       0.12       0.08       0.14       0.17       0.19
 14       0.24       0.11       0.14       0.12       0.07       0.10       0.10
 15       0.10       0.11       0.11       0.13       0.18       0.18       0.18
 16       0.10       0.07       0.26       0.35       0.10       0.14       0.10
 17       0.07       0.07       0.09       0.15       0.10       0.11       0.18
 18       0.10       0.08       0.12       0.16       0.08       0.10       0.07
 19       0.21       0.20       0.20       0.26       0.22       0.18       0.16
 20       0.10       0.10       0.16       0.13       0.07       0.10       0.10
 21       0.22       0.17       0.13       0.24       0.18       0.24       0.29
 22       0.12       0.15       0.16       0.26       0.16       0.13       0.12
 23       0.39       0.13       0.34       0.44       0.19       0.18       0.13
 24       0.10       0.08       0.17       0.21       0.07       0.10       0.09
 25       0.12       0.09       0.11       0.10       0.10       0.07       0.07
 26       0.11       0.11       0.27       0.21       0.20       0.14       0.19
 27       0.23       0.19       0.23       0.27       0.20       0.14       0.21
 28       0.21       0.14       0.14       0.26       0.20       0.14       0.17
 29       0.11       0.09       0.13       0.13       0.11       0.12       0.09
 31       0.12       0.09       0.14       0.15       0.11       0.18       0.22
_______________________
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 851 (1996 Apr 28 - May 04)
 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   1.0    8.04       -1.19        49.0        4.00        2.75    
ALGO*  6.8    .           .           46.2        4.44        2.83    
AREQ   5.6    92.4       -2.41        39.0        5.16        2.23    
ASC1   4.0    131.       -2.39          .         6.28        1.77    
BRMU   2.0    112.       -2.38        39.5        5.00        2.97    
BRUS   1.0    .268       -4.66        59.0        4.00        3.06    
CAS1    .9    2.52        240.        37.0        5.00        2.04    
CHAT   7.0    96.4       -2.38        81.6        5.46        2.97    
CRO1   7.0    213.       -2.38        46.7        6.58        2.29    
DAV1   3.9    6.49        497.        31.0        5.28        1.77    
DRAO   1.0    .885       -1.93        35.0        4.00        2.93    
EISL   6.8    .697e+07   -.133e+05    38.8        6.86        3.03    
FAIR*  7.0    .111       -2.91        39.6        4.30        2.32    
FORT   5.8    .177        8.36        51.6        8.37        3.15    
GOL2*  6.6    50.8       -1.80        43.8        4.56        3.21    
GUAM   7.0    98.1       -2.38        56.6        7.68        2.65    
HART*  7.0    50.1       -6.78        44.7        4.90        2.29    
HKLO   5.0    .289e+06    502.        48.5        4.43        .954    
IISC   6.9    78.7       -2.38        68.6        6.41        2.28    
IRKT   5.8    .316       -2.51        57.7        5.00        2.90    
JPLM   2.0    .107e+06    193.        32.9        5.54        2.42    
KERG   3.0    116.       -654.          .         5.36        2.80    
KIRU   4.0    3.02       -2.82        55.5        7.26        2.26    
KIT3   6.0    116.       -2.39        57.3        4.88        2.81    
KOKB*  6.4    .189       -.236e+04    61.1        5.60        2.46    
KOSG*  2.9    20.7       -2.38        40.9        3.38        2.51    
KWJ1   3.9    93.0       -2.33        52.7        6.95        1.74    
LMNO   1.0    .288e+06    506.        56.0        6.00        .936    
LPGS   4.6    .287e+04   -2.42        51.5        5.14        1.74    
MAC1    .9    70.1       -2.48        30.0        4.00        2.21    
MADR*  7.0    .109        19.5          .         4.74        2.48    
MALI   6.0    226.        82.7          .         8.90        2.26    
MAS1   5.9    22.7       -5.51        50.9        4.89        2.81    
MCM4   7.0    87.2       -2.38        34.3        4.87        2.09    
MDVO   2.9    .307        122.        68.3        6.00        2.57    
MOIN   7.0    78.2       -2.38        66.3        7.94        1.82    
NOTO   6.9    .113       -15.2        36.9        4.17        3.05    
PAMA   6.9    520.       -2.39          .         10.7        1.88    
PERT   7.0    1.99        35.9        49.6        5.08        3.22    
PIE1   1.0    .111       -4.03        41.0        4.00        2.79    
POL2   1.0    75.1       -2.36        71.0        4.00        2.58    
RCM5   5.0    86.2       -2.35        74.9        7.62        2.36    
REYK   7.0    80.1       -2.38        57.8        6.01        2.29    
SANT*  3.0    .914e-01   -6.05          .         5.00        2.74    
STJO   7.0    112.       -2.01        38.0        4.90        2.54    
THU1   5.8    551.       -2.38        49.1        5.00        2.04    
TID2*  7.0    .932e-01   -2.47        41.3        5.00        3.14    
TROM*  2.0    8.14        11.5          .         4.00        2.09    
TSKB   2.0    .745       -.982        53.5        5.00        2.83    
USUD   5.0    3.80       -.525        37.4        5.01        2.87    
WTZR*  5.9    .128       -1.14        60.2        4.33        2.52    
YAR1*  7.0    1.39       -2.47          .         4.16        2.46    
YELL*  6.7    .247e+04   -.334        55.0        4.63        1.84    
PRN01  7.0    81.8        66.4        55.2        5.86        2.53    
PRN02  7.0    78.5       -255.        55.7        5.44        2.45    
PRN03  7.0    79.6        5.48        49.8        5.00        2.42    
PRN04  7.0    81.9        21.2        49.0        6.13        2.31    
PRN05  7.0    81.3        35.3        49.5        6.13        2.24    
PRN06  6.6    79.8        3.74        49.2        6.04        2.33    
PRN07  7.0    82.1        717.        55.7        5.73        2.24    
PRN09  6.8    78.5       -22.5        55.7        6.43        1.97    
PRN14  7.0    80.3        11.1        52.1        5.46        2.25    
PRN15  7.0    2.81        294.        57.0        5.61        2.28    
PRN16  7.0    79.8        7.00        50.3        6.14        2.46    
PRN17  7.0    81.5       -116.        51.4        5.75        2.36    
PRN18  7.0    84.2       -11.2        48.8        5.72        2.42    
PRN19  6.6    81.2        463.        50.7        5.57        2.31    
PRN20  7.0    81.4        13.8        55.6        5.87        2.34    
PRN21  7.0    81.4       -22.9        54.3        5.87        2.44    
PRN22  7.0    81.7        302.        50.5        6.00        2.34    
PRN23  7.0    82.5        7.58        51.1        6.02        2.30    
PRN24  7.0    242.       -222.        52.7        6.16        2.41    
PRN25  6.8    81.7       -4.11        49.6        6.31        2.23    
PRN26  7.0    78.7       -191.        51.0        6.43        2.48    
PRN27  6.6    82.8        24.9        51.5        5.86        2.22    
PRN28  7.0    2.33        77.7        56.6        5.16        2.70    
PRN29  7.0    80.1        7.00        47.3        5.72        2.25    
PRN31  7.0    81.7        464.        52.9        5.57        2.39    
_______________________
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  4 28   96  4 29   96  4 30   96  5  1   96  5  2   96  5  3   96  5  4
prn   3d rss (m)
  1       3.5        3.7        3.9        4.7        4.6        3.6        5.0 
  2       2.7        2.9        2.9        2.8        4.4        3.4        3.5 
  3       7.0        6.9        8.2        7.4        6.8        7.4        5.7 
  4       4.4        4.4        3.4        5.5        4.5        3.8        4.4 
  5       3.8        3.2        2.9        3.0        3.5        3.5        3.4 
  6       7.7       11.2        9.4        6.4        7.7        6.2        4.2 
  7       4.9        4.8        5.3        5.7        5.2        4.4        5.0 
  9       8.4        9.5        6.6        6.4        7.0        5.7        5.9 
 14       2.8        3.2        3.3        3.4        3.1        3.5        3.3 
 15       4.7        4.6        4.8        4.9        5.0        4.5        5.1 
 16      16.0       13.0        7.1        9.1        6.2        8.4        6.5 
 17       5.3        5.6        5.7        5.2        5.5        5.9        6.1 
 18       3.8        4.7        3.8        4.0        6.3        8.9        7.1 
 19       6.3        9.4       12.2        9.2       12.6       11.7       12.1 
 20       2.6        2.8        2.7        2.6        2.6        2.8        2.7 
 21       2.6        4.7        4.5        5.4        4.7        3.8        4.6 
 22       4.8        4.6        4.5        5.0        5.1        5.4        4.7 
 23       2.1        1.4        2.1        2.0        1.9        2.5        3.4 
 24       4.7        6.0        4.4        4.1        3.6        4.7        4.8 
 25       7.3        6.9        7.5        7.0       10.0       10.6        7.1 
 26       3.9        4.0        4.1        3.8        4.1        4.1        3.5 
 27       6.4        7.5        7.9        8.0        7.3        7.7        8.9 
 28       2.8        3.0        2.6        3.1        3.3        3.6        3.1 
 29       4.5        4.2        3.6        3.6        4.0        4.2        3.1 
 31       3.0        2.5        3.0        2.9        3.2        3.8        3.7 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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