Subject: [IGSREPORT-3032] Wk 0872 JPL Analysis Report
From: D C Jefferson
Date: Fri, 4 Oct 1996 12:07:14 PDT

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IGS Electronic Report    Fri Oct  4 12:07:14 PDT 1996      Message Number 3032
******************************************************************************

Author: D C Jefferson
Subject: Wk 0872 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0872 (DAYS 266-272, DATES 1996 Sep 22 - Sep 28)
******************************************************************************

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/0872.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08727.sum         This text file.
jpl08727.erp         Earth rotation parameters for GPS week 872.
jpl08727.snx         Ground station coordinates for GPS week 872, SINEX format.
jpl0872[0-6].sp3     GPS ephemerides for GPS week 872, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 cm

According to the file nanu1996.mes obtained from the IGS CBIS, a new satellite, 
PRN30 was launched on day 256.  Data from this satellite were used on day 272
only.  Also, PRN05 was scheduled unusable on day 268 for maintenance and
repositioning.  Data from this satellite did not meet our convergence criteria
on this nor the following day (265), and have been excluded from our analyses
of both days.

Beginning this week, we add two new candidate stations.  As with most stations, 
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)
MAD2 (Madrid, Spain)         4849202.4854   -360329.1343   4114913.0821
MKEA (Mauna Kea HI, USA)    -5464109.0746  -2495162.9080   2148285.4774

Lastly, according to IGS Mail Message No. 1440, an antenna change was
scheduled to occur at MADR on day 270.  This station was NOT used as a
fiducial (constrained) site in the analyses of days 270 through 272.

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 PRN10 excluded for the entire GPS week 872.
WARNING: Data from PRN05 excluded days 268 and 269 due to a maneuver.
WARNING: MADR not used as a fiducial days 270-272 due to an antenna change.
WARNING: Data from CMBB, DGAR, EISL, HOB2, NYAL excluded day 266.
WARNING: Data from CMBB, DGAR, EISL, NYAL, POL2 excluded day 267.
WARNING: Data from CMP9, DGAR, EISL, MCM4, NYAL, PAMA, SANT, SNI1 excluded               day 268.
WARNING: Data from CHIL, DGAR, EISL excluded day 269.
WARNING: Data from BAHR, DGAR, HBRK, ONSA excluded day 270.
WARNING: Data from BOGT, CMBB, EISL, FARB excluded day 271.
WARNING: Data from BOGT, CAT1, CMBB, DGAR excluded day 272.

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 872 (1996 Sep 22 - Sep 28)
     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
50348.50  28123  25933    80909  1797    3    3    10     10 37 12 25  -89 -340 
50349.50  27993  25591    79088  1845    3    3    10     10 36 12 25 -182 -328 
50350.50  27835  25241    77206  1919    3    4    10     10 37 12 24 -156 -354 
50351.50  27659  24845    75283  1928    3    4     9      9 37 12 24 -135 -334 
50352.50  27468  24489    73367  1903    3    3     9      9 37 12 24 -251 -320 
50353.50  27284  24041    71481  1870    4    4    10     10 37  7 24  -98 -393 
50354.50  27193  23678    69590  1912    3    3    10     10 37 11 25 -137 -391 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 872:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 872 (1996 Sep 22 - Sep 28)
      96  9 22   96  9 23   96  9 24   96  9 25   96  9 26   96  9 27   96  9 28
prn   3d rss (m)
  1       0.12       0.14       0.14       0.09       0.16       0.13       0.20
  2       0.08       0.10       0.10       0.08       0.27       0.08       0.19
  3       0.25       0.23       0.24       0.23       0.67       0.43       0.30
  4       0.11       0.14       0.22       0.16       0.26       0.25       0.23
  5       0.08       0.1                              0.1        0.13       0.22
  6       0.12       0.09       0.13       0.17       0.18       0.15       0.28
  7       0.12       0.08       0.10       0.10       0.11       0.14       0.18
  9       0.10       0.08       0.12       0.09       0.12       0.17       0.11
 14       0.13       0.12       0.19       0.14       0.46       0.24       0.13
 15       0.09       0.13       0.11       0.11       0.16       0.18       0.15
 16       0.19       0.20       0.07       0.13       0.20       0.17       0.17
 17       0.22       0.22       0.19       0.16       0.23       0.18       0.25
 18       0.10       0.53       0.53       0.12       0.25       0.30       0.14
 19       0.09       0.21       0.13       0.22       0.72       0.44       0.21
 21       0.09       0.08       0.16       0.21       0.21       0.13       0.16
 22       0.17       0.17       0.13       0.14       0.24       0.24       0.20
 23       0.20       0.14       0.10       0.09       0.17       0.09       0.22
 24       0.05       0.12       0.10       0.11       0.27       0.30       0.15
 25       0.13       0.14       0.13       0.15       0.33       0.24       0.17
 26       0.13       0.10       0.10       0.11       0.19       0.19       0.16
 27       0.13       0.12       0.11       0.10       0.26       0.17       0.11
 28       0.24       0.10       0.17       0.13       0.29       0.14       0.19
 29       0.12       0.12       0.15       0.14       0.87       1.37       0.19
 30                                                                         1.3 
 31       0.15       0.39       0.27       0.18       0.45       0.27       0.17
_______________________
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 872 (1996 Sep 22 - Sep 28)
 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*  6.7    .           .           47.1        4.82        2.36    
ANKR    .9    157.       -.145        54.0        4.00        2.63    
AREQ   6.0    99.3       -.178        42.7        4.89        1.89    
ASC1   6.0    300.       -.207        78.6        5.19        1.60    
AUCK   1.0    93.9       -.217        40.0        5.00        3.10    
BAHR   4.7    .467        267.        50.0        4.63        1.82    
BOGT   3.0    193.       -.185        62.3        6.36        1.88    
BRAZ   2.0    265.       -.224        54.5        5.53        2.46    
BRMU   2.0    109.       -.181        40.0        7.00        2.37    
BRUS   6.0    75.5        1.82        64.2        4.58        2.17    
CAS1   5.9    16.9        147.        39.6        5.00        1.53    
CASA   2.0    .966e+05    576.        36.5        5.11        2.76    
CHAT   6.0    116.       -.186        79.0        5.18        2.51    
COCO   6.8    152.       -667.        47.0        5.30        2.09    
CRO1   3.9    136.       -.209        42.3        7.12        1.67    
DAV1   2.0    11.0        105.        32.0        5.00        1.56    
DRAO   1.0    .691        4.39        34.0        6.00        2.96    
EISL   1.0    .848e+07   -.134e+05    41.0        7.00        2.95    
ENG1   3.9    .412e+06    514.        96.8        12.4        2.42    
FAIR*  7.0    .135       -.599        40.2        5.51        1.61    
FLIN   6.0    89.1       -.193        51.7        5.39        2.01    
FORT   7.0    .157       -.574        49.3        6.05        2.13    
GOL2*  7.0    30.3       -.144        43.9        5.66        2.41    
GUAM   7.0    106.       -.203        55.2        8.37        1.81    
HART*  7.0    340.       -.946        44.7        4.76        2.02    
HKLO   1.0    .288e+06    513.        50.0        7.00        1.96    
IRKT   2.7    .192       -.138        56.6        4.73        2.22    
KELY   1.0    79.9       -.238        64.0        6.00        1.44    
KERG   6.0    137.       -20.5          .         5.03        1.79    
KIRU   1.0    2.04       -.301        50.0        6.00        2.15    
KIT3   2.8    135.       -.219        59.3        5.00        2.70    
KOKB*  7.0    .120        2.66        75.3        6.45        2.43    
KOSG*  6.7    2.02        .516        43.2        4.12        1.81    
KWJ1   6.9    83.4       -.204        53.8        7.64        1.61    
LPGS   2.8    .195e+04   -.709        55.2        5.00        2.28    
MAC1   2.0    86.6       -.239        29.5        5.06        2.21    
MADR*  4.0    .113       -.655          .         5.26        1.80    
MALI   7.0    73.1       -30.3          .         7.74        1.65    
MAS1   4.9    106.       -.221        50.3        4.23        2.39    
MCM4   4.0    103.       -.239        40.2        5.28        1.35    
MDO1   1.0    .669       -5.22        32.0        6.00        2.79    
MDVO   4.7    .963e+05    602.        66.2        6.00        2.19    
MKEA   1.0    .502e-01   -.486        46.0        6.00        1.99    
NOTO    .9    .164       -1.04        35.0        7.00        3.32    
OHIG   6.1    .143e+05   -1.95        56.8        5.16        1.39    
PAMA   4.7    .160e+05   -.778          .         10.1        1.82    
PERT    .8    139.       -.593        52.0        4.00        1.90    
POL2   2.8    87.8       -.181        53.4        3.71        1.83    
RCM5   3.0    179.       -.205        70.1        7.58        1.97    
REYK   5.9    86.2       -.197        58.5        6.71        1.72    
SANT*  4.8    295.       -.831e-01    43.6        4.81        2.10    
SHAO   2.0    94.7       -.192        67.0        6.00        1.79    
STJO    .8    35.7       -.163        91.0        4.00        2.17    
THU1   6.0    80.0       -.190        47.2        5.53        1.98    
TID2*  6.0    45.7       -.299        41.5        5.35        2.26    
TROM*  2.9    5.51        95.7          .         5.11        1.29    
TSKB   1.0    1.95        .680        46.0        5.00        1.84    
USUD   5.0    1.98        1.90        34.2        5.29        2.17    
WTZR*  6.0    .103        .239e-01    62.2        4.19        2.57    
WUHN   2.9    150.       -10.7        45.8        5.00        1.96    
YAR1*  5.9    .405e+06    124.          .         4.59        1.86    
YELL*  6.0    .117       -1.73        45.0        5.40        1.30    
PRN01  6.9    80.8        2.96        54.8        6.03        2.51    
PRN02  7.0    81.7       -293.        55.1        5.87        2.39    
PRN03  6.9    81.3        55.0        54.0        5.90        2.26    
PRN04  7.0    81.4        46.0        52.7        5.89        2.15    
PRN05  5.0    80.3        59.3        53.8        5.81        2.33    
PRN06  6.8    81.3        2.23        53.5        5.73        2.49    
PRN07  7.0    78.2        728.        54.3        5.59        2.14    
PRN09  7.0    82.4       -11.8        55.7        5.29        2.36    
PRN14  7.0    81.3        15.0        48.7        5.89        2.33    
PRN15  7.0    3.44        344.        57.3        5.90        2.38    
PRN16  7.0    81.7        27.0        52.8        5.30        2.26    
PRN17  7.0    79.5       -126.        56.7        5.45        2.22    
PRN18  7.0    80.9        11.9        51.3        6.32        2.35    
PRN19  7.0    80.1        111.        52.6        5.75        2.31    
PRN21  7.0    78.3       -29.1        53.0        5.87        2.53    
PRN22  7.0    80.8        339.        49.3        5.78        2.44    
PRN23  7.0    80.5        3.98        58.9        5.76        2.18    
PRN24  7.0    80.6        307.        55.2        5.89        2.26    
PRN25  7.0    80.6       -3.47        52.1        6.18        2.45    
PRN26  6.9    81.6       -42.4        54.3        6.00        2.47    
PRN27  7.0    80.7        2.58        50.9        5.87        2.65    
PRN28  6.9    2.11        108.        64.1        5.16        2.48    
PRN29  7.0    80.1        .818        47.1        7.14        2.65    
PRN30   .7    2.03       -.519        64.0        8.00        2.57    
PRN31  7.0    79.8        42.0        56.1        6.16        2.29    
_______________________
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  9 22   96  9 23   96  9 24   96  9 25   96  9 26   96  9 27   96  9 28
prn   3d rss (m)
  1      10.8        9.7        8.8        7.0        7.5        9.7        9.3 
  2       3.7        3.2        3.3        3.9        4.2        3.4        2.1 
  3       6.1        6.8        6.0        5.7        6.3        6.0        5.1 
  4       4.6        4.4        5.4        5.7        5.9        5.3        5.2 
  5       2.9        3.4                              6.9        4.4        8.1 
  6      10.3        9.3       10.1       10.3        6.9        6.4        6.5 
  7      10.3        9.7       10.4        8.8        7.0        8.3        8.9 
  9       3.4        3.4        3.5        3.9        4.2        4.2        5.2 
 14      18.3       12.4        3.1        2.6        1.9        2.8        2.6 
 15       3.0        4.7        3.1        2.8        3.0        3.5        3.8 
 16      12.7        9.1        2.0        1.5        1.9        2.7        3.9 
 17       2.5        3.8        5.3        3.8        4.5        3.0        3.9 
 18       2.8        2.9       28.1        4.3        2.9        1.9        3.9 
 19       3.8       10.4       12.5        8.4        9.0        5.6        2.9 
 21       4.4        4.0        3.6        3.9        4.0        4.8        4.1 
 22       3.6        3.6        4.5        4.0        3.8        4.1        5.6 
 23       2.6        2.7        2.9        3.0        3.0        3.3        4.1 
 24       4.5        5.0        5.6        5.6        5.9        5.8        6.0 
 25       3.7        5.3        4.5        4.8        4.1        4.7        6.1 
 26       4.7        5.1        5.4        4.9        4.6        4.6        4.7 
 27       6.7        7.0        7.4        7.3        7.8        7.3        8.4 
 28       7.3        9.5        8.1        6.7        5.6        6.2        7.0 
 29       5.9        6.7        6.4        6.7        5.7       18.9        6.4 
 30                                                                         0.0 
 31       5.6        3.8        4.2        3.3        3.2        3.3        3.1 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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