Subject: [IGSREPORT-5919] Wk 1001 JPL Analysis Report
From: D C Jefferson
Date: Tue, 30 Mar 1999 17:07:41 PST

******************************************************************************
IGS Electronic Report    Tue Mar 30 17:07:41 PST 1999      Message Number 5919
******************************************************************************

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

******************************************************************************
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.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 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

However, the following days were processed before reverting to the nominal
strategy and did not use the sites listed above: 073, 075, and 077.

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: DRAO (not USNO) used as reference clock days 073-076 and 078.
WARNING: Data from PRN18 excluded the entire GPS week 1001.
WARNING: Data from ASC1, COCO, GOLD, KELY, KIT3, LPGS, 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, NOUM excluded day 075.
WARNING: Data from PRN24, PRN07, 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   55494  240300   6252284  11351  77  83  228  228 37  0 26 -1681  -473
51252.50   54174  239775   6240658  11900  71  71  227  227 37  0 26 -1618  -433
51253.50   52342  239559   6229098  11220  92  99  249  249 37  0 25 -1772  -429
51254.50   50814  238964   6218078  10820  80  82  245  245 37  0 24 -1608  -629
51255.50   49728  239030   6207252  10833  77  83  245  245 37  0 25  -476  -135
51256.50   48962  239246   6195813  12045  73  76  249  249 37  0 25 -1137   324
51257.50   48033  239767   6183352  12877  66  70  233  233 37  0 26 -1138   272
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      14         23         26         18         11         14         10   
  2      12         27         21         16         22         18         11   
  3      27         32         30         30         21         27         15   
  4      10         16         26         12         12         14          9   
  5      10         32         38         18         10         13          8   
  6      13         35         21         20          9         12         11   
  7      10         20         50                                          13   
  8      17         34         34         34         16         12         10   
  9      26         30         51         68         27         19         14   
 10      10         12         22         25         18         13         11   
 13       6         18         22         28         30         14         13   
 14       7         18         23         16          6          4         16   
 15      11         17         35         17         10          6         10   
 16       6         19         27         21         10          6         10   
 17      17         40         20         14         14         12         17   
 19      14         12         15         11         12         12         11   
 21      13         28         41         26         24         20         20   
 22      18         16         27         24         12         27         20   
 23      26         28         38         21         23         35         31   
 24      11         12                                5         11          8   
 25      15         28         33         23         11         20         14   
 26      11         26         19         19         13         10         12   
 27      18         20         17          9         12          8         13   
 29      16         24         24         18          8          7          8   
 30       9         36         39         16         12         11         13   
 31      10         17         15         33          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        .411e-01    101.        4.15        2.37    
AMC2   1.7    .504e-01    .368e-01    46.3        6.92        2.66    
ANKR   1.0    108.       -.154e-01    91.0        4.00        2.67    
AOML   5.0    116.       -.528e-02    73.7        5.10        2.61    
AUCK   1.0    110.        .802e-02    54.0        3.00        1.70    
BAHR   7.0    .730        210.        40.7        5.06        2.50    
BARB   2.7    111.       -.805e-01    32.0        6.00        2.64    
BRAZ*   .9    .290e+06    499.        53.0        6.00        1.71    
BRMU*  3.0    109.       -.167e-02    56.0        5.35        2.70    
CAGL   1.0    37.7       -.319e-01    51.0        4.00        2.85    
CHAT   7.0    113.       -.105e-01    83.3        4.74        2.75    
CHUR   1.0    1.24       -.345e-01    39.0        6.00        2.01    
CRO1    .9    .706e+05    2.33        64.0        4.00        1.90    
DRAO   5.0    .           .           42.2        4.92        2.57    
DUBO   5.0    110.       -.761e-02    52.8        3.49        1.63    
EISL   6.3    169.       -.273e-01    74.0        4.12        2.29    
FAIR*  7.0    37.1       -.109e-01    105.        4.46        2.21    
FORT*  3.8    1.87        .190          .         6.02        1.42    
GODE   5.0    108.        .847        65.8        4.45        2.51    
GOL2*  7.0    549.        .204        92.4        4.12        2.15    
GOUG   4.9    .290e+06    506.        59.2        4.43        2.82    
HARK*  7.0    6.83        1.55        72.7        4.31        2.58    
HARV   1.0    .918e+07    .175e+05    84.0        6.00        2.27    
HFLK   1.0    90.5        .163e-01    54.0        4.00        3.25    
HRAO   2.0    171.        .203        61.0        4.00        2.55    
IISC   1.0    123.       -.542e-01    81.0        5.00        1.53    
IRKT*  5.0    .402       -9.88        59.8        4.22        2.57    
JOZE   1.0    .104e+04    618.        74.0        6.00        3.30    
KIRU   3.0    1.64        .299        59.9        6.69        2.27    
KOKB*  2.2    .959       -.916e-01    83.0        5.00        2.66    
KUNM    .8    792.       -.850e-01    70.0        5.00        2.36    
KWJ1*  3.1    .707e+04    1.35        80.8        5.28        1.62    
MAD2*  5.9    988.        .286        75.4        5.19        2.43    
MAG0   5.0    .289e+06    477.        35.7        4.81        2.18    
MALI*  3.9    36.2       -55.0          .         6.55        1.77    
MATE*  1.0    .174e+05    8.44        50.0        5.00        2.62    
MCM4   2.9    274.        .297e-01    59.0        4.29        1.02    
MDO1*  3.0    903.       -5.71        61.9        3.70        2.62    
MDVO   3.9    .370        263.        74.0        5.76        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    12.9        129.        57.0        4.52        2.82    
NOTO   1.9    .137        161.        60.9        5.53        3.50    
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        6.63        1.28    
OHIG*   .9    78.9       -.239e-01      .         4.00        2.11    
ONSA*  5.4    31.8       -.427e-01    46.2        6.08        2.40    
PETP   2.0    117.        .438e-02    62.0        5.00        2.75    
PIE1*  2.0    105.       -.224        67.2        4.00        2.61    
POL2   4.0    104.       -.800e-02    59.5        4.74        2.41    
RAMO   2.0    .274e+06    535.        44.5        5.12        2.02    
REYK   6.0    96.2       -.446e-04    64.6        6.18        2.11    
SANT*  2.4    695.       -.952          .         4.00        2.02    
SCH2   4.0    75.3        .905        78.3        5.37        2.26    
SELE   2.0    107.        .133e-02    65.0        3.53        2.39    
SHAO*  2.0    111.       -.272e-01    62.0        4.00        2.39    
STJO   2.0    2.87        .237        84.5        4.00        2.50    
SUTH   1.0    130.       -.492e-01    68.0        4.00        2.37    
SUWN   1.0    .986e+04   -.573        56.0        4.00        1.54    
TID2*  6.0    68.2       -1.01        53.9        4.85        2.60    
TIXI    .9    92.3        .575e-02    47.0        5.00        1.80    
TOUL   2.0    .664        155.        73.0        5.53        2.84    
TSKB*  7.0    1.23       -.337        62.7        4.00        3.01    
URUM    .9    580.       -.838e-01    58.0        5.00        .810    
USNO   2.0    .           .           77.5        5.50        2.49    
USUD   5.0    .253       -.903        59.9        4.00        3.06    
VESL   6.9    .289e+06    495.        60.3        4.16        2.10    
WHIT   1.0    107.        .131e-01    86.0        4.00        .928    
WSRT   1.0    389.       -.155        38.0        3.00        2.44    
WTZR*  5.7    434.        2.05        71.6        4.36        2.77    
WUHN   4.8    6.87       -820.        62.0        4.63        2.41    
XIAN   2.0    .449e+05    680.        62.5        5.06        2.68    
YAR1*  6.0    94.2        .250e-02    55.0        4.69        2.04    
YELL*  7.0    .375        .319        81.3        4.74        1.49    
ZECK   4.0    77.5       -.441e-02    68.5        4.59        2.49    
ZWEN*   .9    970.        .513e-01    59.0        5.00        2.22    
PRN01  7.0    79.5        77.8        57.6        4.32        2.40    
PRN02  7.0    80.0       -36.5        69.7        4.82        2.09    
PRN03  7.0    81.7        103.        61.6        5.07        2.15    
PRN04  6.6    81.4        533.        63.2        4.87        2.12    
PRN05  6.9    81.8        191.        68.3        4.46        2.14    
PRN06  7.0    80.9       -.120e-01    63.3        5.03        2.28    
PRN07  3.8    82.0        813.        67.9        4.83        2.18    
PRN08  6.8    79.2        779.        68.8        5.04        1.98    
PRN09  6.5    80.2       -34.9        73.0        5.21        1.94    
PRN10  6.9    83.1        33.8        68.1        5.03        2.23    
PRN13  7.0    80.7       -58.6        64.2        5.21        2.18    
PRN14  7.0    79.3        16.2        61.2        4.87        2.24    
PRN15  6.7    2.96        663.        66.7        4.60        2.09    
PRN16  7.0    78.8        106.        67.1        5.00        2.27    
PRN17  6.8    83.6       -206.        68.1        5.03        2.21    
PRN19  6.6    82.6       -120.        60.4        5.02        2.31    
PRN21  7.0    82.4        11.0        59.6        5.15        2.37    
PRN22  7.0    78.2        263.        62.7        4.87        2.24    
PRN23  7.0    80.3        10.8        62.0        5.16        2.58    
PRN24  4.8    82.2        529.        74.2        5.00        2.26    
PRN25  6.7    81.0        .423        59.6        5.16        2.12    
PRN26  6.9    79.8        333.        63.1        5.36        2.32    
PRN27  6.6    82.1        14.3        65.1        4.74        2.10    
PRN29  7.0    82.1        321.        56.0        4.74        2.38    
PRN30  7.0    81.0       -11.4        64.5        4.77        2.11    
PRN31  6.6    79.1        15.2        65.7        4.90        2.18    
_______________________
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        660        775        538        636        712   
  2     873        756        454        411        409        312        680   
  3     428        320        217        257        163        179        304   
  4     639        685        456        365        307        252        648   
  5     413        339        406        230        164        139        362   
  6     503        608        437        527        730        562        470   
  7     620        620        355                                         200   
  8     240        501       1038        969        659        688        424   
  9     438        277        187        321        390        331        344   
 10     407        452        418        421        245        366        265   
 13     855        679        409        305        300        285        453   
 14     654        576        838        891        839       1321        752   
 15     477        516        454        357        297        435        718   
 16     513        469        786        496       1182        225        314   
 17     407        220        753        594        431        290        309   
 19    2385       1479        263        292        335        284        543   
 21     502        630        357        462        237        220        318   
 22     719        511        433        407        326        357        330   
 23     484        357        206        217        179        166        324   
 24     513        199                              400        390        366   
 25     530        306        357        534        291        244        247   
 26     344        280        227        206        239        187        180   
 27    1646       1398        477        622        486        394        407   
 29     450        294        320        271        388        134        194   
 30     396        457        389        218        260        274        343   
 31     422        507        405        631        352        464        563   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo amc2 ankr aoml auck bahr barb braz brmu cagl chat chur cro1 drao dubo eisl fair fort gode gol2 goug hark harv hflk hrao iisc irkt joze kiru kokb kunm kwj1 mad2 mag0 mali mate mcm4 mdo1 mdvo mets mkea nano noto noum nssp nya1 ohig onsa petp pie1 pol2 ramo reyk sant sch2 sele shao stjo suth suwn tid2 tixi toul tskb urum usno usud vesl whit wsrt wtzr wuhn xian yar1 yell zeck zwen

[Mailed From: [email-masked]]