Subject: [IGSREPORT-2900] Wk 0865 JPL Analysis Report
From: D C Jefferson
Date: Mon, 19 Aug 1996 17:22:03 PDT

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IGS Electronic Report    Mon Aug 19 17:22:03 PDT 1996      Message Number 2900
******************************************************************************

Author: D C Jefferson
Subject: Wk 0865 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0865 (DAYS 217-223, DATES 1996 Aug 04 - Aug 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/0865.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08657.sum         This text file.
jpl08657.erp         Earth rotation parameters for GPS week 865.
jpl08657.snx         Ground station coordinates for GPS week 865, SINEX format.
jpl0865[0-6].sp3     GPS ephemerides for GPS week 865, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 18.0 cm
  (excluding PRN03 days 218 and 219, and PRN10 on all days)

According to the file nanu1996.mes obtained from the IGS CBIS, PRN20 has been
unusable since day 131 and is no longer in service.  Beginning day 218, all
data from PRN20 are deliberately excluded from our analyses.  Although included 
in the analysis of day 217, formal errors did not meet our inclusion criteria
and the solution for this satellite has been excluded from the corresponding
orbit product, jpl08650.sp3.

Also, data from PRN03 appears to be mismodeled on days 218 and 219.  Similarly,
data from the newly-launched PRN10 appears mismodeled for the entire week.
Although both satellites were used in our analyses, we have chosen to
exclude their solutions from our sp3 orbit products as follows:

               PRN03 - excluded from jpl08651.sp3
               PRN10 - excluded from jpl0865[1-6].sp3

Beginning this week, we included data from a number of new 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)
BAHR (Manama, Bahrain)       3633909.1961   4425275.5521   2799861.2586
BRU1 (Brunswick ME, USA)     1578692.4390  -4324866.2818   4399288.8073
CAGL (Cagliari, Italy)       4893381.8880    772650.4696   4004182.4846
CME1 (CP Mendocino CA, USA) -2746199.4703  -4011278.7659   4115650.7189
DHLG (Durmit Hill CA, USA)  -2319120.7869  -4799881.2570   3490071.5368
ENG1 (English Turn LA, USA)     5632.0625  -5534945.6637   3158742.3595
FMC2 (Fort Macon NC, USA)    1209162.3590  -5108416.6616   3610320.5501
HVLK (Haviland  KS, USA)     -800332.1264  -4992908.7245   3875261.3447
MEDI (Medicinia, Italy)      4461403.3003    919594.0906   4449505.7250
NRC1 (Ontario, Canada)       1112777.6476  -4341476.2722   4522956.4926
PBL1 (Point Blunt CA, USA)  -2703286.7661  -4256588.6493   3892578.9381
PENC (Penc, Hungary)         4052449.8452   1417680.9572   4701406.9183
POTM (Potsdam, Germany)      3800694.0074    882079.0200   5028787.7703
PPT1 (Pigeon Point CA, USA) -2725254.9636  -4295982.4713   3833970.4666
SHK1 (Sandy Hook NJ, USA)    1338345.9310  -4670936.1092   4117942.3596
STL3 (St. Louis  MO, USA)      21021.6525  -4990480.4575   3958783.4192
VIMS (Williamsburg VA, USA)  1250693.1528  -4902017.5651   3871080.4838
WUHN (Wuhan City, China)    -2267746.5092   5009157.3273   3221291.9617
XIAN (Xian, China)          -1735212.5231   4976842.5043   3580538.4500

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 PRN20 excluded day 218 and thereafter.
WARNING: Data from DGAR excluded day 217.
WARNING: Data from COCO, DGAR, SPK1, YAR1 excluded day 218.
WARNING: Data from CMBB, COCO, DAM2, DGAR, YAR1 excluded day 219.
WARNING: Data from CHIL, CMBB, COCO, DGAR, KELY, SPK1, YAR1 excluded day 220.
WARNING: Data from CHIL, COSO, DGAR, WETT, WLPS excluded day 221.
WARNING: Data from DGAR, SNI1, WLPS excluded day 222.
WARNING: Data from DAM2, GOLD, KELY, MADR, SNI1, TIDB, TROM, WLPS excluded               day 223.

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 865 (1996 Aug 04 - Aug 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
50299.50  26305  44785   145948  1275    3    3     7      7 37 13 25  181 -358 
50300.50  26441  44373   144753  1116    3    3     7      7 37 12 25  183 -467 
50301.50  26678  43990   143563  1263    3    3     7      7 37 12 25  279 -328 
50302.50  26867  43551   142445   973    3    3     7      7 37 11 25  342 -429 
50303.50  27121  43208   141476   965    3    4     7      7 37 11 25  284 -410 
50304.50  27374  42858   140533   921    3    4     7      7 37 12 25  250 -413 
50305.50  27565  42495   139463  1219    3    3     7      7 37 10 25  221 -339 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 865:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 865 (1996 Aug 04 - Aug 10)
      96  8  4   96  8  5   96  8  6   96  8  7   96  8  8   96  8  9   96  8 10
prn   3d rss (m)
  1       0.05       0.24       0.33       0.36       0.15       0.14       0.12
  2       0.13       0.09       0.21       0.16       0.17       0.17       0.12
  3       0.09       1.17       1.24       0.85       0.34       0.18       0.20
  4       0.31       0.18       0.28       0.33       0.18       0.17       0.23
  5       0.07       0.14       0.20       0.14       0.13       0.15       0.14
  6       0.25       0.31       0.27       0.19       0.21       0.14       0.20
  7       0.30       0.27       0.19       0.22       0.12       0.10       0.14
  9       0.06       0.12       0.16       0.24       0.15       0.12       0.12
 10                  1.7        1.49       1.15       0.97       1.12       1.33
 14       0.11       0.36       0.32       0.19       0.20       0.15       0.18
 15       0.12       0.24       0.36       0.37       0.18       0.09       0.17
 16       0.16       0.48       0.62       0.49       0.33       0.25       0.23
 17       0.17       0.20       0.29       0.36       0.42       0.22       0.23
 18       0.18       0.17       0.30       0.20       0.15       0.20       0.11
 19       0.17       0.25       0.29       0.30       0.12       0.15       0.15
 21       0.10       0.23       0.34       0.35       0.30       0.18       0.17
 22       0.13       0.17       0.25       0.24       0.20       0.18       0.18
 23       0.13       0.17       0.27       0.35       0.26       0.14       0.15
 24       0.11       0.18       0.20       0.23       0.26       0.34       0.34
 25       0.12       0.21       0.19       0.11       0.14       0.15       0.12
 26       0.13       0.16       0.20       0.26       0.14       0.12       0.14
 27       0.12       0.11       0.23       0.21       0.15       0.14       0.20
 28       0.10       0.38       0.36       0.37       0.27       0.23       0.17
 29       0.07       0.14       0.25       0.12       0.09       0.12       0.11
 31       0.10       0.24       0.42       0.59       0.19       0.17       0.24
_______________________
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 865 (1996 Aug 04 - Aug 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*  6.8    .           .           50.5        5.62        3.04    
AREQ   5.0    91.4       -2.27        42.2        4.82        2.50    
ASC1   6.0    143.       -2.25        77.3        6.03        1.63    
BAHR   1.8    1.49        433.        61.1        5.00        3.80    
BRMU   1.0    111.       -2.36        38.0        10.0        2.89    
BRUS   1.0    .382        4.77        61.0        5.00        3.00    
CAS1   5.8    15.9        .116e+04    34.4        5.52        2.00    
CHAT   6.9    115.       -2.24        81.9        5.44        2.66    
COCO   1.9    101.       -285.        33.0        5.51        2.91    
CRO1   7.0    146.       -2.25        43.1        6.49        2.18    
DAV1    .9    12.1        .118e+04    33.0        5.00        1.83    
EISL   6.9    .719e+07   -.146e+05    40.0        6.58        2.82    
ENG1    .9    .288e+06    513.        94.0        11.0        1.75    
FAIR*  7.0    32.3       -2.62        40.6        5.15        2.51    
FORT   7.0    .160       -3.46        48.6        6.16        3.58    
GOL2*  7.0    32.9       -2.12        46.9        5.62        3.03    
GUAM   6.9    146.       -2.26        62.4        8.31        2.31    
HART*  7.0    47.9        11.5        42.1        5.06        3.14    
HKLO   3.0    .289e+06    498.        48.0        6.35        2.47    
IISC   5.7    112.       -2.27        67.4        5.50        2.60    
IRKT   5.8    .230       -2.39        61.0        5.00        3.13    
JPLM   4.0    65.2        198.        33.1        4.27        3.25    
KERG   6.0    164.       -13.6          .         6.71        2.48    
KIRU   3.0    3.64       -1.57        56.4        7.00        2.57    
KIT3   1.0    507.       -2.32        60.0        6.00        3.39    
KOKB*  5.3    29.0       -2.00        69.5        7.14        2.92    
KOSG*  5.9    161.       -1.61        42.7        4.19        2.31    
KWJ1   6.9    .195e+04   -2.51        48.7        7.05        2.04    
LPGS   1.9    .825e+04   -2.48        60.0        5.54        2.75    
MAC1   2.9    79.1       -2.18        30.7        4.36        2.32    
MADR*  4.9    .961e-01   -1.88          .         5.22        2.47    
MALI   7.0    152.       -103.          .         8.03        2.71    
MAS1   7.0    27.9       -9.43        44.5        5.03        2.95    
MCM4   7.0    90.6       -2.25        35.8        5.17        1.90    
MDVO   2.0    .290        801.        66.5        6.00        2.83    
NOTO   6.0    279.       -3.66        43.3        5.58        3.02    
PAMA   6.9    139.       -2.25          .         10.0        2.36    
PERT   7.0    2.56       -4.77        52.4        5.66        2.92    
POL2   5.0    84.2       -2.22        67.2        4.63        2.86    
REYK   7.0    79.8       -2.25        54.6        6.15        2.22    
SANT*  4.8    126.       -2.19        37.3        6.64        2.59    
SHAO   1.0    112.       -2.27        105.        5.00        2.42    
STJO   3.8    31.2       -2.43        33.1        6.50        2.72    
THU1   7.0    72.3       -2.25        50.6        5.87        2.84    
TID2*  7.0    .146       -2.53        41.2        5.61        3.03    
TROM*  5.9    .686e+04    15.3          .         5.17        1.58    
USUD   6.0    18.4       -2.03        34.2        5.71        2.87    
VILL   1.0    3.74       -.242e-01    62.0        5.00        3.04    
WTZR*  5.5    .324       -1.84        62.8        4.73        2.81    
WUHN   3.0    .493e+06   -.212e+04    46.0        7.05        2.72    
YAR1*  4.0    5.25       -3.71          .         5.09        2.58    
YELL*  7.0    .243       -2.78        53.2        5.73        2.00    
PRN01  7.0    81.0        152.        52.9        5.87        2.68    
PRN02  7.0    82.2       -282.        54.1        5.73        2.68    
PRN03  6.7    82.9        37.0        52.8        7.51        2.32    
PRN04  7.0    79.0        36.2        49.7        6.00        2.41    
PRN05  7.0    78.6        49.3        50.9        5.60        2.52    
PRN06  6.9    82.8       -.235        53.0        6.30        2.47    
PRN07  6.8    81.8        723.        54.0        6.02        2.32    
PRN09  7.0    80.0       -8.20        51.4        5.60        2.55    
PRN10  6.0    128.        30.2        54.2        7.56        2.44    
PRN14  6.9    81.5        12.2        49.5        6.30        2.54    
PRN15  7.0    3.40        325.        55.5        5.86        2.52    
PRN16  6.8    79.5        19.5        52.6        7.08        2.48    
PRN17  7.0    79.0       -124.        53.7        5.74        2.50    
PRN18  7.0    82.1        6.74        49.4        6.00        2.62    
PRN19  6.8    .387e+05    167.        50.2        5.48        2.43    
PRN21  6.9    81.3       -29.1        50.9        6.15        2.71    
PRN22  7.0    81.1        326.        48.4        6.00        2.42    
PRN23  6.8    80.4        .545e-01    51.2        6.00        2.59    
PRN24  7.0    82.5        199.        52.5        5.73        2.36    
PRN25  7.0    77.4       -4.96        48.6        5.74        2.44    
PRN26  7.0    81.8       -17.7        50.1        6.00        2.69    
PRN27  7.0    80.4        35.8        50.0        6.00        2.71    
PRN28  6.9    2.25        96.2        57.9        5.48        2.91    
PRN29  7.0    80.5        10.9        48.2        5.45        2.58    
PRN31  6.8    82.2        627.        53.0        5.89        2.55    
_______________________
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  8  4   96  8  5   96  8  6   96  8  7   96  8  8   96  8  9   96  8 10
prn   3d rss (m)
  1       4.7        4.4        4.7        5.7        5.0        4.7        6.3 
  2       4.2        3.7        3.8        3.8        3.5        4.2        2.9 
  3       4.6       14.4       72.8       36.5       19.8        5.3        5.4 
  4       3.2        3.6        3.9        3.9        3.2        2.9        3.5 
  5       4.4        3.5        4.6        4.2        4.2        4.2        4.4 
  6       5.2        5.4        5.0        6.0        7.4        7.8        7.1 
  7       5.8        6.0        5.7        5.8        5.6        5.2        6.7 
  9       3.3        2.8        2.1        3.9        2.2        1.9        2.8 
 10                  0.0       27.8       25.1       21.5       25.3       77.4 
 14      13.1        9.6       26.7       32.4       21.9       27.1       27.5 
 15       2.3        2.9        2.8        2.8        2.6        3.6        3.4 
 16      33.3       36.7        9.1       11.3       11.9       31.8       27.6 
 17       3.6        4.5        6.1        2.8        2.4        2.1        3.3 
 18       5.1        6.3        5.4        4.8        6.3       19.8       16.0 
 19       3.2        3.3        3.8        2.6        2.4        6.3       11.6 
 21       3.8        4.1        4.7        5.1        5.2        5.7        6.7 
 22       6.3        5.7        6.1        6.2        5.9        5.6        6.2 
 23       9.9       11.7       13.0        6.4        7.9        5.7       10.2 
 24       4.0        4.4        4.3        3.8        3.6        3.6        3.6 
 25       2.3        3.3        2.3        2.1        2.9        2.6        2.8 
 26       3.5        4.6        3.7        3.1        4.7        5.3        3.7 
 27       4.0        2.8        3.3        3.2        4.2        4.7        4.2 
 28       3.9        3.3        4.2        4.3        4.6        5.1        3.6 
 29       6.7        5.3        5.5        7.5        5.4        5.1        7.1 
 31       3.9        6.6        3.0        3.5        3.2        4.9        3.7 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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