Date: Mon, 2 Oct 2000 11:13:33 -0700 (PDT)
From: David C Jefferson <djeff@cobra.jpl.nasa.gov>
Message-Id: <200010021813.LAA10913@kalman.jpl.nasa.gov>
To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov
Subject: [IGSREPORT-7608] Wk 1080 JPL Analysis Report
Sender: owner-igsreport
Precedence: bulk

******************************************************************************
IGS Electronic Report   02 Oct 11:13:34 PDT 2000      Message Number 7608
******************************************************************************

Author: D C Jefferson

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 1080 (DAYS 261-267, DATES 2000 Sep 17 - Sep 23)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, 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/1080.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10807.sum         This text file.
jpl10807.erp         Earth rotation parameters for GPS week 1080.
jpl10807.snx         Ground station coordinates for GPS week 1080, SINEX format.
jpl1080[0-6].sp3     GPS ephemerides for GPS week 1080, sp3 format.
jpl1080[0-6].tro     Ground station troposphere estimates for GPS week 1080.
jpl1080[0-6].clk     GPS and ground station clocks for GPS week 1080, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 cm

This week, we add a new candidate global station.  As with other sites,
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)
ORID (Ohrid, Macedonia)           4498451.8655    1708266.9432   4173591.8938

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: PIE1 (not USNO) used as reference clock days 261, 262, 266, and 267.
WARNING: NRC1 (not USNO) used as reference clock days 263 and 265.
WARNING: Data from PRN15 and PRN28 excluded the entire GPS week 1080.
WARNING: Data from GUAT, MANA, PETP, WTZT excluded day 261.
WARNING: Data from KELY, LBCH, NTUS, PETP, RAMO, VNDP, WTZT excluded day 262.
WARNING: Data from LBCH, NTUS, PETP, USNO, WTZT excluded day 263.
WARNING: Data from MANA, PETP, YAKZ excluded day 264.
WARNING: Data from CHIL, NICO, PETP, TABL, UNSA excluded day 265.
WARNING: Data from KUNM, LBCH, NTUS, PETP, SANT, WTZT excluded day 266.
WARNING: Data from PETP, WTZT excluded day 267.

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 1080 (2000 Sep 17 - Sep 23)
version 2           
     MJD   XPole   Ypole  UT1R-UTC   LODR Xsg Ysg UTsg LOsg Nr Nf Nt   Xrt   Yrt
         10**-6" 10**-6"      .1us .1us/d 10**-6" .1us .1us/d          10**-6"/d
51804.50   14377  240322   1640097   5045  35  40  154  154 42  0 25 -1735   333
51805.50   12991  240959   1635278   4593  35  40  148  148 42  0 25 -1611   283
51806.50   11438  241777   1630453   5057  30  35  131  131 42  0 25 -1292   708
51807.50    9687  242795   1625274   5301  30  34  126  126 42  0 25 -1931   695
51808.50    7786  243630   1619743   5761  34  39  139  139 42  0 25 -1276   519
51809.50    6021  243683   1613624   6478  38  44  150  150 42  0 25 -1358  -505
51810.50    4846  243636   1607430   5910  36  43  138  138 42  0 25 -1090   102
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1080:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1080 (2000 Sep 17 - Sep 23)
      00  9 17   00  9 18   00  9 19   00  9 20   00  9 21   00  9 22   00  9 23
prn   3d rss (cm)
  1      14          9          6          7         11         10          6   
  2       7          6          7         18         14          7          5   
  3      16         11          4          6          9          7         10   
  4       7          6          8          9          5          6          5   
  5       5          5          7          8          8          7          8   
  6      14          8         13         11          5         10         12   
  7       7          9         12          6          9         10         15   
  8       7          8          6          9          6          8          5   
  9       7          9          6          9          8          7          7   
 10       8         11          9          9          8          9          9   
 11      12         13         14          9          7          9         14   
 13      21         17          7          7          7          8         10   
 17       6          8          8         11          7         10         13   
 19      16         17          7         12          9         11         12   
 20      10         15          8         11         11         11         13   
 21       7          9          9         13         13         12         11   
 22       7          8          5          6         10          6          6   
 23      15         14         12         17         18         27         11   
 24       8          5          6          4          6          7         10   
 25       9         12          6          6          8          7         10   
 26       7          7         15         10          7          6          8   
 27      10         11          7          9          7          6          5   
 29      14         11          7         11          9         12         12   
 30      10          6          5          6          6          6          8   
 31      10          8          3          7          8         12         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 1080 (2000 Sep 17 - Sep 23)
 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*  5.8    .398        1.34        36.8        4.54        3.14    
AOML   1.0    24.4       -.214e-02    57.0        7.00        2.63    
AREQ*  2.0    33.7        12.1        29.6        4.00        2.31    
ARTU   4.9    14.2       -.788e-01    35.6        4.86        2.62    
ASC1   6.8    122.       -.107e-01    72.1        5.30        2.34    
AUCK*  7.0    17.6       -.328e-02    53.9        4.46        2.79    
BAHR*  2.9    .425        785.        32.3        7.19        3.74    
BARB   1.0    20.5       -.932e-01    26.0        8.00        3.24    
BJFS    .9    .623        688.        18.0        5.00        3.32    
CAS1*  1.9    23.5       -.543e-02    26.0        4.00        1.15    
CHUR   1.0    .965       -2.75        29.0        4.00        1.88    
CIC1   2.0    43.2       -.291e-02    46.6        4.53        2.76    
COCO   6.5    83.8        .809e-02    30.3        5.86        3.23    
CORD    .9    28.4       -.398e-02    92.0        3.00        .996    
CRO1    .9    .218        .402e-02    40.0        6.00        1.43    
DAV1*  6.8    14.2       -.639e-02    79.5        4.17        1.21    
DGAR   6.4    21.4       -.121e-01    33.6        7.26        3.13    
EISL   6.9    48.3       -.259e-01    77.3        4.74        2.34    
ESTI    .9    .289e+06    495.        94.0        8.00        1.46    
FAIR*  6.7    .436       -.786        25.6        4.00        .951    
FORT*  5.7    1.68        .119        91.5        5.18        1.79    
GALA   6.0    31.6       -.117        24.8        4.54        3.26    
GOUG    .9    .290e+06    497.        66.0        5.00        2.88    
GUAM*  2.8    29.5       -.155        65.1        7.35        2.98    
HOB2*  1.9    .110       -15.7        50.1        6.00        3.47    
HRAO   6.0    .236e+06    587.        78.7        4.85        3.78    
IISC   6.4    51.3       -.341e-01    88.7        6.75        1.93    
IRKT*  4.5    .586       -.254e-01    63.1        4.84        2.54    
JAB1   6.8    30.8       -.120        59.0        5.59        2.92    
JAMA   1.0    34.9       -.145        76.0        4.00        2.78    
JPLM   1.0    .666e+04    10.8        49.0        4.00        2.92    
KELY   2.8    27.0       -.649e-02    62.6        6.00        1.31    
KERG*  6.9    .289e+06    500.        46.8        5.58        2.24    
KIT3*  4.7    32.0       -.157e-01    42.9        4.82        3.72    
KOKB*  6.9    1.81       -2.31        46.5        4.45        1.18    
KOUR*  3.9    29.8       -.112        50.0        6.24        2.63    
KUNM   3.7    64.0       -.415e-01    86.2        5.79        2.37    
KWJ1*  5.6    .178e+07    284.        38.2        5.16        .958    
LHAS*  3.0    13.2       -.311e-02    33.7        5.00        3.62    
MAC1*  6.7    14.3       -.964e-01    32.8        4.15        1.94    
MAG0   4.9    16.2       -.829e-01    43.8        4.22        2.67    
MALI*  5.5    .526e+05   -210.          .         7.37        1.91    
MAS1*  5.0    2.57        .266        30.0        4.64        3.35    
MCM4*  3.8    63.9        45.3        53.9        5.00        1.18    
METS   1.0    .445        482.        26.0        4.00        2.39    
NICO   1.0    13.1       -.262e-01    25.0        6.00        3.84    
NKLG   7.0    .286e+06    496.        72.4        7.00        1.80    
NOUM   1.0    .283e+06    510.        69.0        5.00        2.04    
NRC1   2.1    .           .           43.5        5.10        3.66    
NYA1   4.0    .126       -1.10        31.3        3.79        1.44    
NYAL*  3.0    58.0       -.165        53.5        4.72        1.42    
ONSA*  6.5    10.1       -.474e-01    44.6        4.17        2.40    
PIE1*  3.5    .           .           57.0        4.79        2.96    
PIMO    .9    25.0        .884e-03      .         3.00        .840    
POL2   1.0    22.0       -.662e-02    52.0        4.00        2.78    
RAMO   2.9    25.5       -.919e-01    65.8        7.00        2.78    
REYK   2.0    9.84       -.134e-01    59.1        7.01        1.83    
RIOG   5.9    13.3       -.890e-01    33.0        4.00        2.63    
SANT*  5.3    178.       -.115        33.1        4.89        1.21    
SFER   2.0    .518        837.        82.0        4.53        2.61    
SOL1   1.0    18.8       -.170e-02    61.0        7.00        3.10    
STJO   1.9    2.06        .449        29.6        4.50        3.38    
SUTH   1.0    49.4        .146e-01    79.0        4.00        2.74    
THTI   5.9    .289e+06    495.        80.2        5.86        2.27    
THU1*  1.0    16.4       -.613e-02    50.0        7.00        1.37    
TIDB*  6.9    .437        522.        30.5        5.81        3.31    
TIXI   1.0    13.3       -.821e-01    44.0        5.00        1.66    
TOW2   1.0    23.2       -.887e-02    18.0        4.00        3.90    
TSKB*  4.8    1.72       -.540        64.0        4.23        2.92    
URUM   1.0    28.2        .295e-02    39.0        8.00        3.03    
USNO   1.0    .           .           47.0        6.00        3.47    
USUD   3.0    .960       -2.24        38.5        4.52        1.24    
VESL    .8    .288e+06    489.        56.0        6.00        1.65    
WES2*  1.0    .274        .414        52.0        5.00        2.60    
WSLR   1.0    21.2       -.111e-01    33.0        4.00        3.63    
WTZR*  6.9    66.2        .474        56.4        4.87        2.72    
WUHN   1.0    24.2       -.112        89.0        6.00        3.94    
YAKZ   1.0    14.4       -.869e-01    53.0        5.00        2.75    
YAR1*  5.9    310.        .283        56.8        4.20        1.78    
YELL*  5.8    .465        .321        40.8        4.00        1.46    
PRN01  6.9    3.82        145.        49.0        5.00        2.14    
PRN02  6.9    3.81       -272.        51.6        5.34        2.25    
PRN03  6.9    2.40        41.5        51.6        5.00        1.98    
PRN04  6.7    1.14        434.        54.7        5.33        2.04    
PRN05  6.9    3.78        266.        54.2        5.00        2.33    
PRN06  6.9    6.11        .293e-02    51.9        5.30        2.24    
PRN07  6.9    2.05        97.4        55.5        5.16        2.29    
PRN08  6.7    2.72        515.        51.3        5.16        2.01    
PRN09  6.6    2.70       -8.79        52.7        5.16        2.05    
PRN10  6.9    2.69        56.9        53.9        5.31        2.15    
PRN11  6.9    .541        602.        53.5        5.00        1.96    
PRN13  6.9    .941       -831.        57.3        5.15        2.04    
PRN17  6.6    4.84       -274.        57.4        5.30        2.10    
PRN19  6.7    4.17        296.        51.5        5.15        1.98    
PRN20  6.9    .486       -55.2        54.9        5.00        2.21    
PRN21  6.9    2.77        16.1        53.6        5.00        2.06    
PRN22  6.9    1.50        296.        53.0        5.00        2.15    
PRN23  6.9    4.50        15.7        55.2        6.30        2.42    
PRN24  6.7    2.65        2.17        51.3        5.15        2.13    
PRN25  6.7    2.03        8.35        51.2        5.15        1.96    
PRN26  6.9    .832        557.        51.2        5.16        2.14    
PRN27  6.7    4.57        31.4        50.4        4.88        2.04    
PRN29  6.9    .875        82.7        53.8        5.00        2.11    
PRN30  6.9    1.64       -38.4        55.7        5.00        2.12    
PRN31  6.9    3.15        11.8        54.6        5.00        1.92    
_______________________
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
      00  9 17   00  9 18   00  9 19   00  9 20   00  9 21   00  9 22   00  9 23
prn   3d rss (cm)
  1     229        279        438        221        305        272        344   
  2     338        369        374        249        250        338        350   
  3     340        233        242        180       1010        694        399   
  4     948        930        683       1013        789        697        494   
  5     732        321        367        714        439        422        398   
  6     433        412        548        597        428        418        663   
  7     290        236        352        280        365        298        297   
  8     441        402        450        353        507        479        366   
  9     502        543        523        392        460        453        648   
 10     298        273        349        625        375        362        297   
 11     637        250        322        492        559        255        595   
 13     436        356        230        316        408        275        297   
 17     264        328        203        346        280        492        369   
 19     634       1212        413        486        352        338        575   
 20     344        253        255        254        248        339        489   
 21     362        215        190        166        432        454        244   
 22     703        220        389        656        475        408        685   
 23     536        565        953        643        974        544        763   
 24     780        591        747        759        614        364        534   
 25     352        431        333        685        588        406        434   
 26     336        286        332        180        266        249        306   
 27     604        799        555        752        825        756        722   
 29     178        233        227        287       1076        728        349   
 30     315        322        346        264        326        239        222   
 31     156        411        363        393        405        399        332   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo aoml areq artu asc1 auck bahr barb bjfs cas1 chur cic1 coco cord cro1 dav1 dgar eisl esti fair fort gala goug guam hob2 hrao iisc irkt jab1 jama jplm kely kerg kit3 kokb kour kunm kwj1 lhas mac1 mag0 mali mas1 mcm4 mets nico nklg noum nrc1 nya1 nyal onsa pie1 pimo pol2 ramo reyk riog sant sfer sol1 stjo suth thti thu1 tidb tixi tow2 tskb urum usno usud vesl wes2 wslr wtzr wuhn yakz yar1 yell