[IGSREPORT-8874] Wk 1143 JPL Analysis Report

David C Jefferson djeff at cobra.jpl.nasa.gov
Tue Dec 18 14:50:47 PST 2001


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IGS Electronic Report   18 Dec 14:50:48 PST 2001      Message Number 8874
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Author: D C Jefferson

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JPL ANALYSIS REPORT   GPS-WEEK 1143 (DAYS 336-342, DATES 2001 Dec 02 - Dec 08)
******************************************************************************

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/1143.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl11437.sum         This text file.
jpl11437.erp         Earth rotation parameters for GPS week 1143.
jpl11437.snx         Ground station coordinates for GPS week 1143, SINEX format.
jpl1143[0-6].sp3     GPS ephemerides for GPS week 1143, sp3 format.
jpl1143[0-6].tro     Ground station troposphere estimates for GPS week 1143.
jpl1143[0-6].clk     GPS and ground station clocks for GPS week 1143, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 7.0 cm

STRATEGY UPDATE
---------------
Beginning day 336 (December 2, 2001), JPL ultra-rapid, rapid, and final
products submitted to the IGS make use of the IGS00 terrestrial reference
frame.  The station monument coordinates and velocities of the designated
54 "core" stations are taken from:

    ftp://macs.geod.emr.ca/pub/requests/sinex/rfwg/IGS01P37_RS54.snx.Z

and antenna heights from ftp://igscb/igscb/station/general/igs.snx.
(Antenna reference point to L1 and L2 phase centers are from
ftp://igscb/igscb/station/general/igs_01.pcv.)

The jpl.acn file at the IGS CBIS has been updated to reflect the switch to
the new reference frame.  Please note that orbits, Earth orientation, SINEX
station coordinates, and daily transformation files submitted to the IGS are
still all free-network solutions, but are now aligned with IGS00.

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: Data from PRN15 and PRN17 excluded the entire GPS week 1143.
WARNING: Data from PRN29 excluded day 336.
WARNING: Data from PRN04 excluded day 337.
WARNING: Data from CAGS, DARW, DUBR, GUAM, LBCH, LHAS, LHUE, PETP, WUHN, YAR1            excluded day 336.
WARNING: Data from DUBR, GUAM, IRKT, LAE1, LBCH, LHUE, PETP, SFDM, SOFI, SSIA,           WES2, YEBE excluded day 337.
WARNING: Data from HILO, HOLM, IRKT, LBCH, LHUE, PIMO, RIOG, SLOR, SSIA, WES2            excluded day 338.
WARNING: Data from BJFS, HILO, IRKT, JAMA, LBCH, MSKU, PIMO, WES2, YAR1                  excluded day 339.
WARNING: Data from CHUM, FORT, GALA, HILO, LBCH, MATE, PIMO, SSIA, WES2                  excluded day 340.
WARNING: Data from LBCH, PIMO, UNSA, WES2, WTZA excluded day 341.
WARNING: Data from WES2, WTZA excluded day 342.

JPL REFERENCE CLOCK TABLE                   GPS week 1143 (2001 Dec 02 - Dec 08)
 2001-12-02 NRC1
 2001-12-03 USNO
 2001-12-04 USNO
 2001-12-05 USNO
 2001-12-06 USNO
 2001-12-07 USNO
 2001-12-08 NRC1
END REFERENCE CLOCK TABLE

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 1143 (2001 Dec 02 - Dec 08)
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
52245.50 -123128  199248  -1088062   6304  38  43  161  161 42  0 25 -2563  1838
52246.50 -125858  201341  -1094299   6169  37  40  160  160 42  0 25 -2193  2087
52247.50 -128369  203868  -1100235   5704  39  43  160  160 42  0 26 -2068  2926
52248.50 -130587  206933  -1105602   5031  36  39  154  154 42  0 26 -1918  3154
52249.50 -133114  210240  -1110685   5134  37  39  154  154 42  0 26 -2802  2952
52250.50 -136115  213209  -1115656   4807  33  38  150  150 42  0 26 -3075  2611
52251.50 -139487  215745  -1120663   5208  39  44  160  160 42  0 26 -3407  2884
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1143:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1143 (2001 Dec 02 - Dec 08)
      01 12  2   01 12  3   01 12  4   01 12  5   01 12  6   01 12  7   01 12  8
prn   3d rss (cm)
  1       8         10          6          6          9         12          5   
  2       7          9         10          7          7          7         12   
  3      14         14          9         10          8         21         24   
  4       5                     4          6          4          8          6   
  5       9          6          5          4          4          8          5   
  6       7          8          9         16          6          8          7   
  7      13          6          7          6          6         10          8   
  8       5          6          6          5          5          5          6   
  9       5          7          5          6          3          9          4   
 10      22          3          6          8          7          9          5   
 11       5          8          6          6          8          7         10   
 13      15         15         14          8         10         12         13   
 14       6          6          5          6          5          4          5   
 18       6          5          8          5          6          9          6   
 20       7          7          9          7          7          9         10   
 21       6          4          4          6          5          2          5   
 22       6          9         20         27          9          9         10   
 23       8          8          9          7          9         14          6   
 24       8          4          7          9          3          6          7   
 25       9          8          7          4          5          6          6   
 26       7          6         10         10          9         17         12   
 27       7          7          6          7          9          9          8   
 28       5          6          5          6          9          5          4   
 29                 10          5          5          6          5          5   
 30       6          5          6          4          4          5          4   
 31       8          8         10          9          5          5          5   
_______________________
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 1143 (2001 Dec 02 - Dec 08)
 receiver/transmitter (* 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   0.448e-01    1.35        33.9        3.91        3.57    
AOML   1.0    19.5      -0.897e-02    59.0        5.00        2.52    
ARTU   5.0    26.8      -0.904e-01    36.2        4.00        2.65    
AUCK*  6.4    21.3      -0.134        45.7        5.33        3.09    
BAHR*  5.9   0.124e+05    834.        29.3        4.35        3.62    
CHUM   2.0    81.2      -0.201e-01    62.0        7.00        2.82    
CIC1   6.0    54.0      -0.153e-01    66.9        4.18        3.00    
COCO   1.9    12.4      -0.120e-01    22.5        5.51        3.47    
CRO1   7.0   0.502e+05    536.        34.7        5.45        3.67    
DARW   5.6    32.8      -0.155        66.1        7.17        2.84    
DAV1*  6.9    18.4      -0.150e-01    38.1        4.00        1.27    
EISL   6.7    59.4      -0.323e-01    72.0        4.18        2.67    
FAIR*  7.0   0.501       0.986e-01    28.5        4.00       0.916    
FORT*  4.8    3.42       0.576          .         5.69        1.14    
GALA   5.0    35.5      -0.126        29.8        4.00        4.20    
GUAM*  5.0    42.2      -0.166        53.5        7.81        4.03    
HOB2*  1.9   0.116        2.84        46.7        4.50        3.43    
HRAO   1.0    27.3      -0.125        79.0        5.00        3.48    
IISC   1.9    40.1      -0.136        62.0        5.00        3.65    
INEG   0.9   0.289e+06    2.10        61.0        3.00       0.850    
IRKT*  1.9   0.665       0.256        57.5        4.50        2.79    
JPLM   1.0   0.225e+05    79.2        68.0        3.00        2.77    
KELY   6.4    15.0      -0.711e-01    25.7        4.88        1.17    
KERG*  6.8   0.594e+05    542.        69.2        5.59        2.43    
KOKB*  7.0    1.28        1.82        47.7        5.87        1.41    
KSTU   0.7    18.8      -0.208e-02    58.0        5.00        2.81    
KUNM   0.8    68.2      -0.380e-01    72.0        5.00        2.55    
KWJ1*  6.1    412.      -0.281e-01    53.0        5.75        1.06    
LHAS*  2.8    23.8       0.860e-02    36.2        4.35        3.89    
MAC1*  6.9    19.7      -0.871e-02    31.3        4.00        1.98    
MANA   2.0   0.291e+06    494.        79.5        5.52        2.05    
MAS1*  6.9    2.50        406.        42.2        4.15        2.54    
MCM4*  6.9   0.124e+05    29.4        62.0        4.86        1.10    
MSKU   3.0    34.4      -0.133        35.7        5.70        3.40    
NKLG   3.9   0.296e+06    470.        71.3        6.75        1.54    
NOT1   2.0   0.113        981.        76.5        5.00        2.12    
NOUM   1.7   0.289e+06    5.40        62.6        5.55       0.865    
NRC1   2.1    .           .           43.5        4.00        3.55    
NRIL   2.0    16.8      -0.906e-01    21.5        4.00        2.17    
NTUS   5.0    7.60      -0.167e-01    57.2        6.61        4.82    
NYA1   6.8   0.116      -0.127        29.1        3.62       0.955    
OHIG*  1.9    14.7      -0.529e-02    44.0        4.00        2.64    
ONSA*  6.9   0.406        234.        44.1        4.00        2.79    
PETP   3.9    30.8      -0.970e-01    46.5        5.76        2.89    
PIMO   1.1    44.1      -0.132        59.0        7.00        2.05    
RIOG   3.8    17.9      -0.127        35.8        4.27        2.63    
SANT*  5.9    22.7      -0.138        37.3        4.19        2.66    
SELE   3.9    32.9      -0.703e-02    66.6        3.00        3.03    
SHAO*  1.0    23.1       0.491e-02    68.0        5.00        2.54    
SIMO   5.7    154.      -0.194e-01    48.9        4.70        2.57    
STJO   4.0    33.4       -1.62        28.0        4.00        3.58    
THTI   6.9    4.21        360.        74.5        6.29        2.19    
TID1   1.0   0.419e-01   0.288        29.0        5.00        3.35    
TIDB*  6.6   0.163        700.        24.2        5.88        3.55    
TIXI   4.8    12.8      -0.841e-01    41.2        4.00        1.80    
TOW2   3.0    11.6      -0.137e-01    21.0        5.00        3.96    
TRAB   5.0    18.2       0.309e-01    44.8        4.43        2.92    
TSKB*  6.9    1.39       -1.31        65.5        3.75        3.13    
ULAB   3.8    45.8      -0.640e-02    44.7        4.00        2.23    
UNSA   0.9    19.0      -0.904e-02    43.0        5.00        2.83    
USNO   5.2    .           .           44.4        4.67        3.71    
USUD   2.0   0.361        355.        30.0        4.53        3.70    
WTZR*  6.0   0.252        149.        48.5        4.85        3.16    
WUHN   4.7    41.7      -0.123        55.6        6.00        3.87    
YAKT   2.0   0.811        481.        27.0        4.00        2.66    
YAR1*  4.2    305.      -0.448e-01    69.5        4.00        2.10    
YAR2   2.0    5.81      -0.116e+05    24.5        4.00        3.68    
YELL*  7.0   0.201       0.127        38.7        3.74        1.55    
ZECK   2.0    32.7      -0.990e-02    39.5        3.00        3.40    
PRN01  7.0    4.71        206.        45.6        4.87        2.10    
PRN02  7.0    3.43       -116.        51.7        4.60        2.22    
PRN03  6.6    2.58        89.1        47.5        5.00        1.96    
PRN04  6.0   0.984        392.        47.2        5.00        2.22    
PRN05  7.0    4.46        326.        47.7        5.00        2.28    
PRN06  6.8    9.20       -1.53        47.7        5.15        2.11    
PRN07  6.8    2.56        624.        47.2        5.32        2.16    
PRN08  7.0    6.13        645.        48.2        4.59        2.12    
PRN09  7.0    1.92       -19.7        45.9        4.87        2.13    
PRN10  7.0    2.61        14.7        50.5        5.00        2.31    
PRN11  7.0   0.377        5.87        48.3        4.87        2.26    
PRN13  7.0   0.319       -8.01        50.2        5.00        2.07    
PRN14  7.0   0.338       -118.        48.3        5.00        2.40    
PRN18  7.0   0.544       -75.8        47.4        5.00        2.38    
PRN20  7.0   0.251       -119.        49.4        5.00        2.19    
PRN21  7.0    3.49        5.17        47.6        5.00        2.33    
PRN22  7.0    1.96        483.        52.3        4.87        2.08    
PRN23  7.0    6.44        1.98        48.5        5.30        2.30    
PRN24  7.0    2.43        10.7        48.2        5.00        2.36    
PRN25  7.0    2.61        20.3        46.6        4.87        2.29    
PRN26  7.0   0.799       -7.58        48.6        5.00        2.19    
PRN27  7.0    3.61        4.03        48.3        4.59        2.31    
PRN28  7.0   0.923       -43.8        49.8        4.45        2.20    
PRN29  6.0   0.856        596.        48.0        5.00        2.39    
PRN30  7.0    2.03        166.        47.0        5.00        2.26    
PRN31  6.6    5.34        79.0        50.6        5.15        1.98    
_______________________
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
      01 12  2   01 12  3   01 12  4   01 12  5   01 12  6   01 12  7   01 12  8
prn   3d rss (cm)
  1     863        638        624        904        669        943        593   
  2     315        620        382        487        793        960        428   
  3     308        297        332        654        518        486        595   
  4     270                   305        374        376        264        208   
  5     600        589        591        662        434        345        282   
  6    1044       1074       1126       1091       1051       1101       1012   
  7     592        437        511        339        294        372        565   
  8     499        326        617        354        316        340        708   
  9     367        297        343        330        497        262        333   
 10     341        370        423        408        424        432        401   
 11     242        270        255        253        358        399        468   
 13     256        288        359        327        309        373        355   
 14     307        400        527        367        217        344        191   
 18     330        258        509        200        218        295        245   
 20     424        607        530        518        429        519        467   
 21     545       1050       2439        261        620       1558        492   
 22     352        226        295        508        324        430        234   
 23     658        570        594        807        606        746        969   
 24     582        692        556        503        525        482        530   
 25     560        546        782        628        854        644        518   
 26     230        218        165        249        286        196        172   
 27     670        517        410        386        518        338        287   
 28     322        242        199        218        216        304        248   
 29                431        558        533        508        188        259   
 30     285        313        494        458        295        380        418   
 31    1206        419        650        530        595        838       1062   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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