Subject: [IGSREPORT-2108] Wk 0822 JPL Analysis Report
From: D C Jefferson
Date: Tue, 24 Oct 1995 16:12:10 PDT

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IGS Electronic Report    Tue Oct 24 16:12:10 PDT 1995      Message Number 2108
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Author: D C Jefferson
Subject: Wk 0822 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0822 (DAYS 281-287, DATES 1995 Oct 08 - Oct 14)
******************************************************************************

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/0822.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08227.sum         This text file.
jpl08227.erp         Earth rotation parameters for GPS week 822.
jpl08227.snx         Ground station coordinates for GPS week 822, SINEX format.
jpl0822[0-6].sp3     GPS ephemerides for GPS week 822, sp3 format.
______________________________________________________________________________

Mean Orbit Repeatability (see table below): 17.6 cm

Beginning this week, we include data from two 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)
CHAT (Chatham Isl., New Zealand): -4590645.6284   -275465.1076  -4404581.6801
IRKT (Irkutsk, Siberia):           -968332.9300   3794424.1200   5018164.8100

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: NLIB (not ALGO) used as reference clock on days 281 and 283.
WARNING: YELL (not ALGO) used as reference clock on days 282 and 284.
WARNING: Data from CHIL, FAIR, HERS, MAC1, METS, NYAL, SEY1, TMGO, TROM 
         excluded day 281.
WARNING: Data from CHIL, KELY, MAC1, METS, TMGO, TROM excluded day 282.
WARNING: Data from CHIL, DAV1, IRKT, KOSG, LAMA, TMGO excluded day 283.
WARNING: Data from CICE, DAM1, DAV1, KOKB, KOSG, LAMA, TMGO, WHI1 excluded day           284.
WARNING: Data from DAM1, DAV1, FAIR, KELY, KOSG, LAMA, TMGO excluded day 285.
WARNING: Data from DAM1, JPLM, KELY, METS, NYAL, TMGO, TROM excluded day 286.
WARNING: Data from DAV1, JPLM, KELY, METS, SEY1, TMGO excluded day 287.

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 822 (1995 Oct 08 - Oct 14)
     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
49998.50  10831   9717  -236436  2376    5    5    12     12 34 11 25 -396 -124 
49999.50  10419   9545  -238835  2422    5    5    13     13 34 11 25 -387 -134 
50000.50   9998   9388  -241255  2419    4    4    12     12 33 12 25 -394 -113 
50001.50   9597   9246  -243664  2399    4    4    11     11 34 11 25 -394 -116 
50002.50   9221   9061  -246008  2288    4    4    12     12 34 11 25 -365  -92 
50003.50   8898   8930  -248278  2253    4    5    12     12 34 12 25 -338  -55 
50004.50   8613   8883  -250560  2310    4    4    11     11 34 13 25 -319  -39 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 822:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 822 (1995 Oct 08 - Oct 14)
      95 10  8   95 10  9   95 10 10   95 10 11   95 10 12   95 10 13   95 10 14
prn   3d rss (m)
  1       0.25       0.23       0.19       0.17       0.15       0.16       0.10
  2       0.22       0.29       0.25       0.09       0.28       0.23       0.05
  4       0.22       0.11       0.12       0.15       0.21       0.17       0.11
  5       0.19       0.21       0.16       0.22       0.32       0.34       0.21
  6       0.16       0.14       0.14       0.19       0.17       0.17       0.16
  7       0.26       0.19       0.17       0.14       0.14       0.16       0.15
  9       0.24       0.12       0.10       0.16       0.16       0.15       0.08
 12       0.33       0.21       0.23       0.27       0.35       0.35       0.29
 14       0.12       0.13       0.16       0.08       0.10       0.11       0.12
 15       0.23       0.12       0.15       0.16       0.12       0.16       0.11
 16       0.19       0.21       0.25       0.24       0.25       0.18       0.26
 17       0.24       0.32       0.34       0.19       0.30       0.41       0.37
 18       0.25       0.15       0.15       0.16       0.10       0.13       0.21
 19       0.27       0.23       0.22       0.13       0.16       0.12       0.08
 20       0.20       0.26       0.24       0.27       0.25       0.22       0.11
 21       0.09       0.10       0.10       0.09       0.16       0.15       0.09
 22       0.14       0.07       0.13       0.12       0.27       0.20       0.14
 23       0.16       0.17       0.16       0.15       0.15       0.15       0.12
 24       0.17       0.23       0.19       0.18       0.34       0.35       0.13
 25       0.13       0.08       0.12       0.12       0.13       0.13       0.15
 26       0.11       0.18       0.11       0.14       0.20       0.16       0.25
 27       0.14       0.16       0.14       0.07       0.14       0.17       0.10
 28       0.14       0.17       0.15       0.14       0.15       0.18       0.13
 29       0.11       0.11       0.20       0.21       0.11       0.17       0.21
 31       0.11       0.12       0.12       0.13       0.16       0.15       0.10
_______________________
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 822 (1995 Oct 08 - Oct 14)
 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*  6.9    356.        3.91        35.3        3.86        2.83    
AREQ   6.9    71.6        2.70        37.8        4.12        2.82    
AUCK   7.0    67.5        2.65        33.1        4.72        3.09    
BOR1   5.9    2.14        2.60        28.2        3.15        2.95    
BRAZ   4.9    108.        3.83        50.9        4.78        2.51    
BRMU   2.0    68.4        4.63        26.0        4.00        3.28    
CAS1   6.9    15.9        .127e+04    46.8        5.00        2.02    
CAT1   1.0    156.        9.35        25.0        4.00        3.29    
CICE   5.9    170.        1.57        24.9        3.51        2.71    
FAIR*  5.0    .698        3.01          .         4.20        2.30    
GOLD*  6.9    .716        2.23          .         3.27        3.21    
GUAM   7.0    83.5        2.65        38.1        7.68        2.64    
HART*  7.0    53.6        6.93          .         5.36        2.54    
HOB2   5.8    152.        4.02        49.9        5.19        2.28    
IRKT   1.0    73.7       -.178e-01    49.0        4.00        3.31    
KELY    .9    179.        1.10        82.6        5.62        .864    
KERG   7.0    137.       -81.5          .         5.32        2.47    
KIT3   5.0    105.        1.87        65.1        5.00        3.08    
KOK2   6.7    5.78        2.86        42.2        6.68        2.90    
KOKB*  4.7    115.        .899          .         6.29        2.85    
KOSG*  3.9    1.72        4.92          .         3.49        2.26    
KOUR   7.0    3.50        32.2          .         6.15        2.44    
LHAS   5.8    111.        2.94        63.0        4.20        2.48    
MAC1   1.0    40.0       -.452e-01    21.0        3.00        2.59    
MADR*  6.9    .149        3.72          .         4.00        2.81    
MAS1   7.0    11.9        1.05        33.3        3.76        2.75    
MCM4   5.8    74.9        3.22          .         4.04        1.62    
MOIN   5.8    69.9        3.20        62.8        5.96        2.48    
NLIB   1.6    .           .           37.5        4.44        2.42    
OHIG   4.8    .136e+06   -16.4        53.7        4.51        1.06    
ONSA   1.0    .153       -.648        21.0        4.00        2.68    
PAMA   6.9    12.7        3.31          .         10.6        1.95    
PERT   7.0    2.11        93.2        41.0        4.47        3.13    
RCM5   2.0    .924        .222          .         7.00        3.17    
SANT*  7.0    .154        2.72          .         3.74        2.54    
SEY1   1.6    .110e+04    3.14          .         13.0        1.96    
SHAO   7.0    71.3        2.66        33.3        4.32        2.64    
STJO   5.0    .168e+05   -112.        47.6        3.84        2.85    
THU1   4.0    63.3        2.30        41.8        4.26        2.51    
TID2   1.0    54.0       -.109        35.0        4.00        2.74    
TIDB*  7.0    .169        2.60          .         5.15        2.88    
TROM*  3.9    5.13        530.          .         4.06        1.73    
TSKB   1.0    2.17       -17.2        29.0        6.00        3.59    
VILL   1.0    4.76       -4.69        38.0        4.00        3.51    
WETT*  7.0    .175        .692          .         4.57        2.84    
YAR1*  7.0    3.41        2.83          .         4.12        2.85    
YELL*  6.8    .249       -9.31        34.0        4.09        1.46    
PRN01  6.9    80.3        611.        42.0        5.15        2.67    
PRN02  6.9    82.1       -197.        41.1        5.03        2.62    
PRN04  6.9    80.7        50.3        42.1        5.25        2.24    
PRN05  6.9    80.5        5.42        42.9        4.87        2.31    
PRN06  6.5    79.1        3.65        42.2        5.26        2.34    
PRN07  6.7    82.2        712.        43.4        5.38        2.30    
PRN09  6.9    83.2       -9.47        45.8        4.58        2.34    
PRN12  6.7    .823        268.        55.4        4.44        2.22    
PRN14  6.9    82.7        13.8        39.5        4.98        2.70    
PRN15  6.9    3.41        234.        42.7        4.98        2.38    
PRN16  6.9    82.9       -126.        43.8        5.25        2.33    
PRN17  6.9    79.4       -92.3        48.5        4.86        2.32    
PRN18  6.9    79.8       -.962        40.5        5.00        2.64    
PRN19  6.9    82.7        87.4        40.4        5.14        2.70    
PRN20  6.9    81.6        25.8        44.8        4.90        2.52    
PRN21  6.9    79.7       -2.58        42.3        4.47        2.58    
PRN22  6.9    79.6        256.        40.7        5.33        2.46    
PRN23  6.8    82.3        4.84        47.1        4.73        2.20    
PRN24  6.9    80.9        278.        40.9        5.25        2.40    
PRN25  6.9    79.5        3.45        41.9        5.43        2.42    
PRN26  6.8    82.0       -41.5        42.1        5.33        2.37    
PRN27  6.9    83.9        8.25        39.0        5.25        2.57    
PRN28  6.6    2.46        43.6        46.0        5.31        2.31    
PRN29  6.9    82.6        4.22        42.7        5.28        2.62    
PRN31  6.7    82.7        640.        44.3        5.58        2.30    
_______________________
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
      95 10  8   95 10  9   95 10 10   95 10 11   95 10 12   95 10 13   95 10 14
prn   3d rss (m)
  1       8.9        5.4        5.6        8.2        7.5        6.9        8.2 
  2       2.3        3.4        3.5        2.8        3.5        3.0        3.3 
  4       4.5        4.7        4.6        3.3        3.7        4.0        3.0 
  5       3.5        3.6        4.2        3.0        3.4        3.3        3.4 
  6       6.6        8.1        8.7        9.4        8.9        7.9        9.2 
  7       8.3        9.3        8.7        5.9        6.8        7.2        7.4 
  9       3.3        3.7        4.4        3.4        3.5        3.6        4.5 
 12       5.5        3.5        4.5        3.5        3.0        3.0        2.8 
 14       6.1        6.4        5.6        6.5        5.3        7.6        6.1 
 15       2.9        3.0        2.8        3.0        4.4        3.1        2.8 
 16       5.4        3.1        3.0        3.2        8.1        5.7        6.9 
 17       3.7        2.7        2.1        2.4        2.3        2.5        2.6 
 18       6.8        6.1        7.1        6.9        5.7        6.6        6.9 
 19       3.7        4.1        3.9        3.8        4.8        3.8        4.7 
 20       3.9        3.5        3.9        3.8        3.9        3.3        3.4 
 21       9.8        6.6       10.1       11.0        6.9        7.4        8.3 
 22       6.5        8.5        8.9        6.8        5.3        7.6        8.7 
 23       4.6        4.1        6.0        2.3        2.2        2.3        2.6 
 24       5.8        5.7        5.8        5.1        5.4        5.1        5.1 
 25       6.0        3.7        5.3        4.9        5.7        5.1        5.6 
 26       3.7        4.8        6.0        6.0        8.1        5.7        6.1 
 27       7.7        6.7        7.6        7.9        6.9        8.0        8.7 
 28       7.1        6.5        5.2        6.9        9.6        7.1        6.2 
 29       7.3        6.1        6.2        6.2        5.6        5.7        5.6 
 31       5.9        5.9        5.6        6.4        5.6        4.4        4.2 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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