Subject: [IGSREPORT-4542] Wk 0940 JPL Analysis Report
From: D C Jefferson
Date: Wed, 28 Jan 1998 17:15:17 PST

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IGS Electronic Report    Wed Jan 28 17:15:17 PST 1998      Message Number 4542
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Author: D C Jefferson
Subject: Wk 0940 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0940 (DAYS 11-17, DATES 1998 Jan 11 - Jan 17)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, M M Watkins, F H Webb, J F Zumberge

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 (137.78.60.30),
directory pub/jpligsac/0940.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09407.sum         This text file.
jpl09407.erp         Earth rotation parameters for GPS week 940.
jpl09407.snx         Ground station coordinates for GPS week 940, SINEX format.
jpl0940[0-6].sp3     GPS ephemerides for GPS week 940, sp3 format.
jpl0940[0-6].tro     Ground station troposphere estimates for GPS week 940.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 9.0 cm

We continue to deweight data from PRN08.  Also, we continue to exclude all
data from PRN13 this week.

The solution for day 018 (week 941, day 0), is not currently available.  As
such, the values for day 017 in our orbit repeatability table below reflect
comparisons with the previous day (016) only.  Also, due to impaired network
connectivity, GPS ephemeris files are currently inaccessible, and we are
unable to provide our usual JPL-BROADCAST NAVIGATION comparison table this
week.

Beginning this week we add four new candidate stations.  As with other
sites, these stations 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)
MAG0 (Magadan, Russian Fed.)       -2825810.2237   1581232.9656   5477005.6485
PETR (Petropavlovsk, Russian Fed.) -3576236.0358   1401010.6514   5075179.0405
YAKA (Yakutsk, Russian Fed.)       -1915023.3031   2308213.2786   5610225.1335
YAKZ (Yakutsk, Russian Fed.)       -1915023.2516   2308213.3141   5610225.0843

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: TID2 (not NRC1) used as reference clock days 011 and 015.
WARNING: USNO (not NRC1) used as reference clock days 012, 014, 016 and 017.
WARNING: MKEA (not NRC1) used as reference clock day 013.
WARNING: Data from PRN08 deweighted the entire GPS week 940.
WARNING: Data from PRN13 excluded the entire GPS week 940.
WARNING: Data from MALI, WES2 excluded day 011.
WARNING: Data from CICE, GUAM, WUHN excluded day 012.
WARNING: Data from QUIN excluded day 013.
WARNING: Data from GUAM, SPK1 excluded day 014.
WARNING: Data from SPK1 excluded day 015.
WARNING: Data from CSN1, QUIN excluded day 016.
WARNING: Data from CASA, PETR excluded day 017.

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 940 (1998 Jan 11 - Jan 17)
     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
50824.50   7461  16852   194526  1665    3    3     8      8 37 11 26 -321  -56 
50825.50   7113  16833   192848  1692    3    3     8      8 37 11 26 -332  -70 
50826.50   6799  16799   191133  1738    3    3     8      8 37 10 26 -290  -55 
50827.50   6533  16774   189363  1802    3    3     8      8 37 11 26 -272  -38 
50828.50   6217  16768   187567  1789    3    3     8      8 37 11 26 -313  -39 
50829.50   5879  16757   185783  1779    3    3     8      8 37 11 26 -302   -7 
50830.50   5565  16755   183999  1790    3    3     8      8 37 11 26 -323   -1 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 940:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 940 (1998 Jan 11 - Jan 17)
      98  1 11   98  1 12   98  1 13   98  1 14   98  1 15   98  1 16   98  1 17
prn   3d rss (cm)
  1       9         12         15         11         19         11         11   
  2       6          7          9          8          9          8          6   
  3      14         12         14         10          6         13          7   
  4       5          7         13          7         10          6          5   
  5       9          7          7          7          7          7          7   
  6      10          8          6          7         12          8          6   
  7       6          6         11          7         11          6          7   
  8      18         17         22         36         29         17         31   
  9       8          9          6          8          8          8          4   
 10      13         12         10         14         13          8          8   
 14      20         32         14          6         12         41         15   
 15       8         10          9          5          6          8          5   
 16      17         13          8         10          9         24         14   
 17       7         11         11          7          7          9          5   
 18      10         13          9          9         17         16          8   
 19       8          8         12         12          8         11          7   
 21      10         14         13          8          8          8          7   
 22      10         12         15          9         11          9          8   
 23      11          9         12          9          6         11         11   
 24       7         13         13         11         12          8          8   
 25      22         13          9         12         12         18         27   
 26      14         15          8          8          8          7          7   
 27       4          8          8          8          7          8          8   
 29      19         10          9          7         15         13          8   
 30      11          7          6          8         11         14         13   
 31      14         10         12         13          9         11         11   
_______________________
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 940 (1998 Jan 11 - Jan 17)
 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*  7.0    .113        5.78        43.3        4.00        3.21    
AREQ   1.0    94.0        .215        39.0        5.00        2.46    
ASC1   6.9    .227e+04   -.172        80.9        5.30        1.46    
BAHR   7.0    .585        234.        42.2        4.76        3.49    
BRUS   1.0    .165        3.69        62.0        5.00        2.56    
CAS1   5.6    .613e+07   -.198e+05    39.3        5.38        1.34    
CASA   2.9    .236e+05    64.2        33.0        4.38        2.51    
CHAT   6.9    108.       -.134        73.5        5.46        2.91    
COCO   6.6    105.       -.501e+04    41.8        5.58        2.92    
CRO1   6.0    139.       -.198        45.2        5.35        1.97    
DGAR   6.9    141.       -.154        74.4        6.00        1.50    
EISL   7.0    134.       -.145        51.3        5.45        2.77    
FAIR*  7.0    .646e-01   -.256        36.4        4.34        2.37    
FLIN   3.0    89.9       -.150        36.7        3.37        2.53    
FORT   6.0    .168       -.245        64.8        7.01        1.52    
GALA   7.0    87.7       -.139        60.9        6.59        1.68    
GOL2*  7.0    68.8       -.215        68.1        4.16        2.07    
HARK   2.6    26.4       -4.94        54.4        5.37        2.37    
IRKT   4.6    .122       -.530        42.0        4.82        2.37    
KERG   1.6    89.8        .122e+04      .         5.98        2.47    
KIRU   3.0    2.72       -.724        51.0        6.00        2.05    
KIT3   1.9    98.5       -.192        50.9        4.00        2.91    
KOKB*  6.9    26.8       -.116        59.7        5.03        2.32    
KOSG*  7.0    .173e+04   -3.83        41.6        4.16        2.33    
KOUR   3.0    2.21       -.291e-01    72.3        6.36        1.43    
KWJ1   7.0    111.       -.139        54.4        6.03        1.77    
MAC1   4.4    93.1       -.102        46.4        4.00        2.32    
MAD2*  6.7    .256e+04   -3.63        59.2        6.20        2.00    
MALI   5.6    .319e+04   -30.2        73.5        6.50        2.10    
MCM4   7.0    114.       -.138        62.2        5.00        1.41    
MDVO   1.8    .170        212.        66.5        6.00        1.89    
MKEA   4.9    .662e-01   -.451        50.3        4.44        2.48    
NICO   1.9    84.9       -.190        35.0        5.15        2.53    
NRC1   1.0    .279       -.215        77.0        5.00        3.06    
OHIG   5.3    .332e+05   -.895e-03    61.1        4.86        1.55    
PERT   4.0    3.17       -13.3        49.5        4.53        2.79    
POL2   2.9    91.0       -.944e-01    62.8        3.69        2.52    
RCM6   1.0    95.9        .196        63.0        4.00        2.72    
REYK   6.8    74.2       -.148        59.7        6.00        2.03    
SANT*  6.5    275.       -.714        42.2        4.60        1.37    
SELE    .9    112.       -.994e-01    32.0        3.00        2.85    
STJO   4.0    52.1       -.109        35.3        4.27        2.66    
TAHI   1.6    221.       -.243        84.0        6.00        2.54    
THU1   6.9    94.5       -.139        47.5        5.31        2.29    
TID2*  7.0    20.8       -.195e-01    37.9        5.89        2.73    
TSKB   1.0    1.63       -1.02        41.0        4.00        2.95    
USNO   4.0    .           .           53.0        4.53        2.85    
USUD   6.0    .602        .301e-01    45.4        4.35        3.08    
WES2   2.0    .206        3.11        66.4        4.00        2.53    
WTZR*  5.8    .778e-01    .996        64.7        4.19        2.62    
WUHN   3.8    6.68       -156.        44.8        4.00        2.55    
XIAN   2.9    103.       -.199        47.5        4.00        2.87    
YAR1*  7.0    91.6       -.137        39.2        4.00        2.37    
YELL*  7.0    14.0       -4.62        41.2        4.00        1.92    
PRN01  7.0    79.6        36.9        53.5        5.00        2.28    
PRN02  7.0    79.1       -445.        56.7        5.00        2.49    
PRN03  6.6    81.1        89.4        51.6        5.00        2.18    
PRN04  7.0    82.2        6.16        51.5        5.00        1.99    
PRN05  7.0    81.6        131.        49.8        5.00        2.56    
PRN06  6.8    80.1       -.310        53.4        5.15        2.13    
PRN07  6.8    79.9        766.        55.1        5.30        2.30    
PRN09  7.0    80.6       -26.1        51.5        5.00        2.46    
PRN10  6.8    81.8        17.3        56.2        5.00        2.13    
PRN14  6.6    79.3        25.5        51.8        5.15        2.17    
PRN15  7.0    3.35        512.        56.3        5.00        2.45    
PRN16  6.6    80.5        44.6        59.4        5.00        2.13    
PRN17  7.0    81.5       -171.        55.0        5.00        2.21    
PRN18  7.0    82.5        9.70        56.6        5.00        2.04    
PRN19  7.0    77.1        358.        57.0        5.00        2.00    
PRN21  6.7    78.2        17.0        54.3        5.31        2.08    
PRN22  7.0    80.0        41.0        54.2        5.00        2.14    
PRN23  6.7    80.5        8.39        55.3        5.65        2.23    
PRN24  7.0    77.2        751.        52.3        5.16        2.24    
PRN25  7.0    81.5       -6.88        50.2        5.00        2.13    
PRN26  7.0    82.1       -73.0        54.2        5.16        2.31    
PRN27  7.0    79.4        14.5        56.2        5.00        2.25    
PRN29  6.9    .604e+04   -9.24        53.5        5.00        2.47    
PRN30  7.0    79.7       -20.5        50.5        5.00        2.44    
PRN31  6.6    79.5        .364        54.1        5.00        2.29    
_______________________
END ENGINEERING DATA SUMMARY TABLE

global:   algo areq asc1 bahr brus cas1 casa chat coco cro1 dgar eisl fair flin fort gala gol2 hark irkt kerg kiru kit3 kokb kosg kour kwj1 mac1 mad2 mali mcm4 mdvo mkea nico nrc1 ohig pert pol2 rcm6 reyk sant sele stjo tahi thu1 tid2 tskb usno usud wes2 wtzr wuhn xian yar1 yell

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