Subject: [IGSREPORT-5930] Wk 1001 JPL Analysis Report
From: D C Jefferson
Date: Fri, 2 Apr 1999 10:37:13 PST

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IGS Electronic Report    Fri Apr  2 10:37:13 PST 1999      Message Number 5930
******************************************************************************

Author: D C Jefferson
Subject: Wk 1001 JPL Analysis Report

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                                RESUBMISSION
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JPL ANALYSIS REPORT   GPS-WEEK 1001 (DAYS 73-79, DATES 1999 Mar 14 - Mar 20)
******************************************************************************

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/1001.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10017.sum         This text file.
jpl10017.erp         Earth rotation parameters for GPS week 1001.
jpl10017.snx         Ground station coordinates for GPS week 1001, SINEX format.
jpl1001[0-6].sp3     GPS ephemerides for GPS week 1001, sp3 format.
jpl1001[0-6].tro     Ground station troposphere estimates for GPS week 1001.
______________________________________________________________________________

**********************************************************
NOTE: This summary report supersedes IGS Report No. 5919.
**********************************************************

Median Orbit Repeatability (see table below): 13.0 cm

We no longer routinely exclude data from the following equatorial sites:

   AREQ ASC1 BARB BOGT BRAZ COCO CRO1 DGAR FORT GALA GUAM IISC
   KOKB KOUR KWJ1 MALI MKEA MOIN NOUM NTUS RIOP SEY1 THTI

According to the file nanu1999.mes obtained from the IGS CBIS, PRN24 was
unusuable on day 075.  Data from this satellite did not meet our initial
orbit convergence criteria on this day, and were mismodeled on the following
day (076) as well.  We have excluded this satellite from the analyses of
both days.  Additionally, data from PRN07 were mismodeled on days 076-078
and have been excluded from these days' analyses accordingly.

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: PENT (not USNO) used as reference clock days 073-076 and 078.
WARNING: Data from ASC1, COCO, GOLD, KELY, KIT3, LPGS, SUWN, TAEJ, URUM                  excluded day 073.
WARNING: Data from COCO, GOLD, KIT3, LPGS, MADR, NYAL, QUIN, SUWN, TAEJ, URUM            excluded day 074.
WARNING: Data from PRN24, GOLD, LPGS, MADR, MAG0, NOUM, SUWN, TAEJ excluded              day 075.
WARNING: Data from PRN07, PRN24, AMC2, DGAR, GOLD, LPGS, MAG0, MDVO, SANT, SEY1          excluded day 076.
WARNING: Data from PRN07, DGAR, GOLD, LPGS excluded day 077.
WARNING: Data from PRN07, ASC1, GOLD, HERS, KIT3, LPGS, MKEA, NICO, OHIG, URUM           excluded day 078.
WARNING: Data from KIT3, LPGS, SANT, URUM excluded day 079.

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 1001 (1999 Mar 14 - Mar 20)
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
51251.50   55724  240295   6252261  11397  69  70  225  225 37  0 26 -1776  -617
51252.50   54265  239827   6240608  11910  69  69  227  227 37  0 26 -1604  -462
51253.50   52270  239422   6228994  11318  70  70  231  231 37  0 25 -1822 -1014
51254.50   50916  239008   6217931  10807  78  79  245  245 37  0 24 -1623  -616
51255.50   49841  238948   6207189  10678  70  71  245  245 37  0 25  -581  -355
51256.50   49049  239308   6195826  12047  71  74  249  249 37  0 25 -1174   281
51257.50   48106  239820   6183365  12875  65  67  233  233 37  0 26 -1144   250
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1001:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1001 (1999 Mar 14 - Mar 20)
      99  3 14   99  3 15   99  3 16   99  3 17   99  3 18   99  3 19   99  3 20
prn   3d rss (cm)
  1       9         12         11         11          7         10         10   
  2      17         25         21         16         20         13         11   
  3      24         27         14         17         16         23         15   
  4      11         10         10         13         13         13          9   
  5       9         13         15          8          6         13          8   
  6      10         24         10         13         15         12         11   
  7      10         10         16                                          13   
  8      18         24         24         18         10         11         10   
  9      24         20         32         37         24         16         14   
 10       7          9         14         22         16         14         11   
 13       5          7         21         24         19         18         13   
 14       9         10         12         12          7          6         16   
 15       9         15         22          7          7          6         10   
 16      10         11         17         15          6          6         10   
 17      18         14         14         20         15         12         17   
 19       8          9          8          6         11         13         11   
 21       8          8         15         26         26         22         20   
 22      16         12         16         18          7         13         20   
 23      27         34         29         23         21         34         31   
 24       8          6                                5         15          8   
 25      11         16         14          8          8         10         14   
 26       8         12         18         20         25         17         12   
 27      16         17         14         10          8          7         13   
 29      11          8         11         13          6          8          8   
 30       8         22         21         11         13         12         13   
 31      11         16         16         13          6          7         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 1001 (1999 Mar 14 - Mar 20)
 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    2.51        .410e-01    101.        4.15        2.36    
AMC2   1.0    .486e-01    .139        45.0        6.00        2.38    
ANKR   2.0    110.       -.854e-02    91.5        4.00        2.72    
AOML   5.0    116.       -.527e-02    74.4        4.23        2.58    
BAHR   7.0    .722        210.        40.4        4.60        2.53    
BARB   2.7    111.       -.805e-01    32.0        6.00        2.64    
BRAZ*  1.8    .290e+06    506.        52.5        6.00        1.76    
CHAT   7.0    113.       -.104e-01    83.1        4.74        2.87    
CRO1   2.6    .418e+05    .809        60.4        4.37        1.88    
DRAO   5.0    .           .           41.6        4.21        2.67    
DUBO   5.0    110.       -.759e-02    53.2        3.22        1.65    
EISL   6.3    169.       -.272e-01    74.0        4.12        2.38    
FAIR*  7.0    37.1       -.108e-01    106.        4.31        2.23    
FORT*  6.5    3.06        .190          .         5.75        1.46    
GODE   5.0    108.        .847        66.2        4.23        2.51    
GOL2*  7.0    549.        .204        93.0        3.75        2.15    
GOUG   5.8    .290e+06    504.        59.5        4.53        2.79    
HARK*  7.0    6.84        1.55        72.8        4.31        2.62    
HARV   1.0    .918e+07    .175e+05    84.0        6.00        2.27    
HRAO   2.0    171.        .203        60.5        4.00        2.53    
IISC   1.9    128.       -.495e-01    79.5        5.00        1.66    
IRKT*  6.0    .385       -9.30        60.0        4.18        2.56    
KOKB*  4.3    1.37       -.908e-01    80.3        5.00        2.60    
KUNM    .8    792.       -.849e-01    70.0        5.00        2.36    
KWJ1*  5.3    .184e+05   -.265e-01    81.3        5.46        1.66    
MAD2*  6.9    921.       -.179        74.8        5.31        2.42    
MAG0   5.0    .289e+06    477.        35.1        4.63        2.19    
MALI*  6.8    34.6       -52.3        92.6        6.75        1.76    
MCM4   2.9    274.        .297e-01    59.0        4.65        1.07    
MDO1*  1.0    345.        1.29        64.0        3.00        2.65    
MDVO   3.9    .356        263.        73.5        5.51        2.16    
METS   1.0    .108       -1.42        52.0        3.00        2.46    
MKEA    .8    1.00       -.599        78.0        4.00        2.60    
NANO   2.0    12.8        129.        57.0        4.52        2.85    
NOTO    .9    .174        159.        55.0        5.00        3.63    
NOUM   1.6    .289e+06    508.        69.0        5.00        2.05    
NSSP    .9    115.       -.582e-02    65.0        4.00        2.42    
NYA1   6.9    60.7       -.796e-01    40.1        6.15        1.28    
OHIG*   .9    78.9       -.239e-01      .         4.00        2.11    
ONSA*  6.4    31.7       -.429e-01    46.2        4.72        2.43    
PETP   2.0    117.        .439e-02    61.5        5.00        2.77    
PIE1*  2.0    105.       -.224        67.2        4.00        2.61    
POL2   4.0    104.       -.783e-02    60.4        3.53        2.45    
RAMO   1.0    .274e+06    486.        47.0        4.00        2.13    
REYK   7.0    96.1       -.302e-02    64.6        6.15        2.13    
SANT*  2.4    695.       -.952          .         4.00        2.17    
SCH2   2.0    87.4        .260        85.7        4.54        2.12    
SELE   2.0    107.        .133e-02    65.0        3.53        2.39    
SHAO*  1.0    97.9       -.240e-01    62.0        3.00        2.43    
STJO   3.0    2.84        .225        85.9        4.35        2.48    
TID2*  7.0    63.1       -1.02        53.9        4.87        2.63    
TIXI    .9    92.3        .578e-02    47.0        5.00        1.80    
TOUL   1.0    .551        155.        72.0        5.00        3.01    
TSKB*  7.0    1.24       -.337        62.7        4.00        3.02    
URUM    .9    580.       -.838e-01    58.0        5.00        .810    
USNO   2.0    .           .           78.0        5.00        2.51    
USUD   5.0    .247       -.903        59.5        4.00        3.07    
VESL   7.0    .289e+06    495.        59.7        4.31        2.11    
VILL*  1.0    36.3       -18.2        42.0        4.00        3.04    
WSRT   1.0    389.       -.155        38.0        3.00        2.44    
WTZR*  6.7    402.        2.34        71.1        4.31        2.77    
WUHN   5.8    7.86       -816.        62.7        4.70        2.35    
YAR1*  7.0    95.0        .330e-02    53.9        4.60        2.06    
YELL*  7.0    .376        .319        81.5        4.60        1.49    
ZECK   3.0    76.9       -.374e-02    67.0        4.00        2.41    
PRN01  7.0    79.4        77.8        58.6        4.15        2.38    
PRN02  7.0    80.0       -36.5        71.1        4.60        2.12    
PRN03  7.0    81.8        103.        63.3        4.87        2.13    
PRN04  6.6    81.4        533.        65.2        4.87        2.02    
PRN05  7.0    81.7        191.        69.4        4.32        2.16    
PRN06  7.0    80.9       -.119e-01    62.8        4.87        2.22    
PRN07  3.9    81.8        813.        67.7        4.53        2.22    
PRN08  6.8    79.2        779.        70.0        4.88        2.04    
PRN09  6.5    80.2       -34.9        73.4        4.73        1.99    
PRN10  6.8    83.1        33.8        68.9        4.87        2.16    
PRN13  7.0    80.7       -58.6        65.1        5.04        2.19    
PRN14  7.0    79.4        16.2        62.4        4.87        2.28    
PRN15  6.7    2.95        663.        67.4        4.60        2.14    
PRN16  7.0    78.8        106.        68.6        4.87        2.26    
PRN17  6.9    83.5       -206.        68.7        4.87        2.22    
PRN19  6.6    82.6       -120.        61.6        5.16        2.29    
PRN21  7.0    82.3        11.0        61.1        5.00        2.36    
PRN22  7.0    78.2        263.        63.3        4.87        2.26    
PRN23  7.0    80.3        10.8        64.1        5.00        2.49    
PRN24  4.8    82.3        529.        74.0        4.82        2.27    
PRN25  6.8    80.9        .423        60.9        5.00        2.15    
PRN26  6.9    79.8        333.        63.8        5.03        2.28    
PRN27  6.6    82.1        14.3        67.5        4.87        2.06    
PRN29  7.0    82.1        321.        56.4        4.60        2.37    
PRN30  7.0    81.0       -11.4        64.5        4.60        2.15    
PRN31  6.8    79.3        15.2        66.3        4.74        2.14    
_______________________
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
      99  3 14   99  3 15   99  3 16   99  3 17   99  3 18   99  3 19   99  3 20
prn   3d rss (cm)
  1     911        477        664        775        539        636        712   
  2     875        756        434        411        413        312        680   
  3     428        320        222        257        165        179        304   
  4     643        685        449        365        308        252        648   
  5     414        339        398        230        163        139        362   
  6     499        608        435        527        728        562        470   
  7     617        620        361                                         200   
  8     238        501       1032        969        660        688        424   
  9     439        277        185        321        392        331        344   
 10     401        452        420        421        245        366        265   
 13     856        679        413        305        301        285        453   
 14     654        576        833        891        838       1321        752   
 15     478        516        452        357        297        435        718   
 16     512        469        794        496       1182        225        314   
 17     406        220        750        594        431        290        309   
 19    2387       1479        262        292        338        284        543   
 21     507        630        362        462        237        220        318   
 22     714        511        442        407        326        357        330   
 23     483        357        201        217        180        166        324   
 24     519        199                              402        390        366   
 25     531        306        347        534        292        244        247   
 26     343        280        229        206        237        187        180   
 27    1646       1398        475        622        491        394        407   
 29     450        294        315        271        389        134        194   
 30     395        457        390        218        260        274        343   
 31     422        507        399        631        351        464        563   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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