Subject: [IGSREPORT-5829] Wk 0997 JPL Analysis Report
From: D C Jefferson
Date: Mon, 1 Mar 1999 16:32:10 PST

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IGS Electronic Report    Mon Mar  1 16:32:10 PST 1999      Message Number 5829
******************************************************************************

Author: D C Jefferson
Subject: Wk 0997 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0997 (DAYS 45-51, DATES 1999 Feb 14 - Feb 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/0997.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09977.sum         This text file.
jpl09977.erp         Earth rotation parameters for GPS week 997.
jpl09977.snx         Ground station coordinates for GPS week 997, SINEX format.
jpl0997[0-6].sp3     GPS ephemerides for GPS week 997, sp3 format.
jpl0997[0-6].tro     Ground station troposphere estimates for GPS week 997.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 13.0 cm

According to the file nanu1999.mes obtained from the IGS CBIS, PRN06 was
unusable on day 047.  Data from this satellite did not meet our initial
orbit convergence criteria on this day and were excluded accordingly.  This
satellite was mismodeled on the following day (048) as well, and its data
have been excluded from that analysis also.

According to the same file, PRN26 was unusable on day 050.  Data from this
satellite did not meet our initial orbit convergence criteria on this or
the following day and have been excluded from both days' analyses accordingly.

Additionally, per IGSMail numbers 2071 and 2075, our analyses this week
exclude data from the following sites:

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

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: USUD (not USNO) used as reference clock day 046.
WARNING: Data from PRN18 excluded the entire GPS week 997.
WARNING: Data from PRN27 excluded day 046.
WARNING: Data from PRN06, PRN07 excluded day 047.
WARNING: Data from PRN03, PRN06, PRN13 excluded day 048.
WARNING: Data from PRN26 excluded days 050 and 051.
WARNING: Data from AZU1, BAHR, BILL, BLYT, CHIL, CHUR, CIT1, CLAR, CMP9, COCO,         CRFP, CSN1, DAM1, DAM2, DAV1, DUBO, FLIN, GOL2, GRAZ, HARK, HOLC, HRAO,         JPLM, KSTU, KWJ1, LEEP, LONG, MAG0, MALI, MONP, NYA1, NYAL, OAT2, PETP,         PIE1, PIN1, POL2, PRDS, PVEP, RAMO, ROCH, SCIP, SELE, SUTH, SUWN, TABL,         TAEJ, TIXI, TORP, TRAK, TSKB, UCLP, URUM, USC1, VESL excluded day 045.
WARNING: Data from ASC1, AZU1, BILL, BLYT, CHIL, CHUR, CIT1, CLAR, CMP9, COCO,         CRFP, CSN1, DAM1, DAM2, DUBO, FLIN, GOL2, HARK, HOLC, HRAO, JPLM, KSTU,         KWJ1, LEEP, LONG, MAG0, MONP, NYAL, OAT2, PETP, PIE1, PIN1, PRDS, PVEP,         ROCH, SCIP, SIO3, SNI1, SUWN, TABL, TAEJ, TORP, TRAK, TSKB, UCLP, USC1          excluded day 046.
WARNING: Data from ASC1, AZU1, BILL, BLYT, CHIL, CHUR, CIT1, CLAR, CMP9, COCO,         CRFP, CSN1, DAM1, DAM2, DUBO, FLIN, GOL2, HARK, HOLC, HRAO, JPLM, KSTU,         KWJ1, LEEP, LONG, LPGS, MAG0, MONP, OAT2, PETP, PIE1, PIN1, PRDS, PVEP,         ROCH, SCIP, SIO3, SNI1, SUWN, TABL, TAEJ, TORP, TRAK, TSKB, UCLP, USC1          excluded day 047.
WARNING: Data from COCO, LPGS, SNI1 excluded day 048.
WARNING: Data from COCO, KELY, SANT, TROM excluded day 049.
WARNING: Data from COCO, KELY, NYAL excluded day 050.
WARNING: Data from COCO excluded day 051.

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 997 (1999 Feb 14 - Feb 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
51223.50   87606  247847   6559824  12612  88  95  213  213 37  0 26 -1082 -1314
51224.50   86450  247169   6547226  12583  79  89  207  207 37  0 25  -733 -1465
51225.50   85349  246842   6535096  11677  76  88  211  211 37  0 24 -1801  -216
51226.50   84029  247068   6523206  12103  79  90  214  214 37  0 23 -1650  -781
51227.50   82056  246873   6510983  12344  80  92  210  210 37  0 26 -1547  -262
51228.50   80181  246434   6498454  12714  80  90  208  208 37  0 25 -1459 -1024
51229.50   78923  245669   6485752  12690  76  81  197  197 37  0 25 -1103  -576
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 997:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 997 (1999 Feb 14 - Feb 20)
      99  2 14   99  2 15   99  2 16   99  2 17   99  2 18   99  2 19   99  2 20
prn   3d rss (cm)
  1      11          9         10         13         11         18          6   
  2      19         21         12         16         18         17         12   
  3      10         14         14                    17         20         13   
  4       8         10         12         17         13         12          6   
  5       9          9         13         16          8          8          4   
  6      12          9                               14         10          7   
  7      13         27                    13         12         19          8   
  8       8          8         15         13          8         16          6   
  9       9         12         11         16          9         14          8   
 10       8         12         11         16         12         11          6   
 13      18         25          8                    22         26         44   
 14      15         20         19         21         21         12         12   
 15       7         12         14         10         12         16          8   
 16      18          9         15         22         15         15          8   
 17      17          9         19         12         16         25         10   
 19      27         14         30         21         32         16         30   
 21       7         14         15         12         25         28         14   
 22      20         10         25         12         10         17          9   
 23      27         14         16         13         16         27         10   
 24       8          5         19         20         11         12          7   
 25      12         15         10         13         10         12         11   
 26      27         19          8         26         16                         
 27      14                    30         24         40         24         13   
 29      11          9          9         15         10         17          6   
 30       7          7         12          9         10          8          4   
 31      11         11         21         17         14          7         12   
_______________________
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 997 (1999 Feb 14 - Feb 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)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALBH   1.0    2.82        .386        47.0        3.00        1.62    
ALGO*  6.9    24.7       -.836        69.5        4.16        2.20    
AMC2   2.0    .317e-01   -.891        65.5        5.50        2.57    
ANKR   1.0    88.4       -1.05        78.0        4.00        2.86    
AOML   3.0    .216e+04   -1.22        65.1        4.34        2.47    
AUCK   7.0    107.       -.910        55.4        4.32        2.50    
BAHR   6.0    .196e+05    144.        40.5        4.69        2.66    
BRMU*  2.0    108.       -.547        50.0        6.00        2.03    
BRUS   1.0    .429       -.828        66.0        4.00        2.22    
CAS1   5.7    12.0        .366e+04    38.5        5.38        1.09    
CAT1   1.0    211.        .196e-01    58.0        4.00        1.42    
DAV1*  5.9    141.       -.860          .         4.84        1.38    
DUBO   1.0    96.1       -1.05        43.0        3.00        2.58    
EISL   6.7    158.       -.906        71.2        4.94        2.56    
FAIR*  6.8    41.8       -.892        77.8        5.04        1.50    
GOL2*  3.4    .187e+04   -4.62        61.6        4.00        2.50    
GOUG   4.5    .290e+06    505.        59.5        4.43        2.94    
HARK*  3.9    128.       -1.06        72.1        5.26        2.56    
HARV   2.0    .834e+07    .141e+05    72.6        6.00        2.76    
HOB2*  1.9    .114       -318.        50.6        6.00        2.81    
HOFN   7.0    .289e+06    500.        48.8        6.93        1.55    
HOLB   2.0    6.06       -5.38        35.1        4.00        2.79    
IRKT*  6.9    3.92       -10.4        54.8        4.46        2.42    
KELY   1.0    136.       -1.03          .         6.00        1.19    
KUNM   4.4    362.       -.826        72.0        4.00        2.19    
MAC1*  6.9    95.2       -.899        44.0        5.34        1.84    
MAD2*  5.8    .131e+04   -1.78        83.0        5.72        2.00    
MAG0   2.8    .289e+06    476.        32.7        5.07        2.33    
MAS1*  7.0    57.0       -.700        73.1        4.15        2.37    
MATE*  1.0    860.       -3.32        51.0        4.00        1.98    
MCM4   5.9    123.       -1.04        55.6        4.68        1.16    
MDVO   4.8    .247        232.        72.7        6.21        1.98    
MEDI   1.0    .328        .685        36.0        3.00        2.48    
NANO   2.0    12.8        689.        51.0        4.54        3.12    
NLIB*  1.0    .622e-01   -1.19        59.0        4.00        2.54    
NOTO   4.0    .209        316.        58.5        5.27        3.08    
NYA1   6.0    .164       -1.13        39.7        6.19        1.29    
OHIG*  6.0    .870e+06    17.5        61.8        4.00        1.94    
ONSA*  1.0    32.1       -1.08        44.0        4.00        2.52    
PETP   1.0    114.       -1.02        62.0        5.00        2.37    
PIE1*  1.0    .181       -1.21        59.0        4.00        2.51    
POL2   4.9    83.5       -.833        81.8        4.00        2.54    
RAMO   5.0    .287e+06    529.        41.9        5.21        2.25    
SANT*  4.9    958.       -1.88        52.2        3.74        2.25    
SCH2   1.0    16.5        26.9        67.0        4.00        2.78    
SHAO*  5.0    105.       -.848        55.7        3.81        1.99    
STJO   6.0    2.37       -.964        81.1        4.37        2.33    
SUTH   2.0    123.       -.548        66.5        4.00        2.38    
THU1*  7.0    81.1       -.894        48.6        6.61        1.32    
TID2*  7.0    37.2       -.136e-01    49.2        5.90        2.40    
TIXI   5.9    103.       -.872        45.1        4.68        1.49    
TOUL   1.9    .654        154.        81.1        4.52        2.61    
TRO1   1.0    93.2       -1.04        49.0        5.00        1.61    
TSKB*  4.0    1.41       -1.17        56.1        4.00        3.02    
UCLU   1.0    12.3        109.        51.0        5.00        3.14    
USNO   6.1    .           .           74.0        5.17        2.78    
USUD   6.9    .236       -.985        51.9        3.87        2.28    
VESL   3.0    .289e+06    499.        61.1        4.33        2.15    
VILL*  1.0    23.6       -5.85        44.0        4.00        2.66    
WILL   1.0    6.49        150.        28.0        4.00        2.94    
WSRT   2.0    6.98       -5.00        51.4        3.00        2.41    
WTZR*  5.0    .455e+05   -221.        68.1        4.66        2.44    
WUHN   2.0    9.04       -491.        55.9        4.00        2.66    
YAKA    .9    117.       -1.03        61.0        5.00        2.43    
YAR1*  7.0    87.8       -.896        47.6        4.17        2.32    
YELL*  6.9    .274       -.730        53.1        4.85        1.38    
ZECK   2.5    177.       -1.05        60.1        4.43        2.58    
PRN01  6.6    79.2        73.7        58.7        4.59        2.09    
PRN02  6.9    80.9       -26.5        64.4        5.00        2.12    
PRN03  5.9    78.5        93.9        61.4        5.17        1.98    
PRN04  6.9    82.5        489.        55.8        5.00        2.17    
PRN05  6.9    80.5        185.        56.5        4.73        2.11    
PRN06  4.9    81.4       -1.18        58.4        5.21        1.64    
PRN07  5.9    81.2        809.        62.6        5.00        2.17    
PRN08  6.9    80.0        745.        60.0        5.00        1.93    
PRN09  6.7    81.8       -32.3        62.1        4.87        1.96    
PRN10  6.9    82.7        31.6        56.7        5.00        1.90    
PRN13  5.9    81.6       -10.2        60.4        5.00        1.79    
PRN14  6.9    81.9        13.5        55.7        5.00        2.06    
PRN15  6.9    3.19        652.        61.6        4.72        2.01    
PRN16  6.9    80.9        101.        62.2        5.00        1.93    
PRN17  6.9    80.9       -205.        60.9        4.86        2.20    
PRN19  6.8    81.2       -110.        59.7        5.09        2.06    
PRN21  6.9    80.0        6.83        55.8        5.00        2.02    
PRN22  6.9    80.6        161.        56.3        5.16        1.91    
PRN23  6.9    79.5        8.91        54.8        5.15        2.35    
PRN24  6.8    83.0        494.        62.3        4.87        2.03    
PRN25  6.9    80.7       -.670        56.0        5.00        1.98    
PRN26  4.7    77.0        197.        60.7        5.42        1.97    
PRN27  5.5    79.5        10.4        62.0        4.83        2.02    
PRN29  6.7    79.8        236.        56.9        4.44        2.13    
PRN30  6.9    79.3       -9.05        55.6        4.87        1.88    
PRN31  6.7    78.2        12.8        59.7        5.31        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  2 14   99  2 15   99  2 16   99  2 17   99  2 18   99  2 19   99  2 20
prn   3d rss (cm)
  1     684        951        564       1008        865        657        888   
  2     321        242        474        444        173        437        234   
  3     285        327        318                   380        325        264   
  4     457        222        184        420        396        228        348   
  5     357        572        274        540        347        283        160   
  6     681        557                              786        693        776   
  7     499        242                   308        274        232        652   
  8     888        559        363        488        282        393        478   
  9     196        310        310        203        302        356        191   
 10     274        519        419        257        165        158        318   
 13     184        223        330                   201        276        256   
 14    1086        254        586        478        632       1136       1094   
 15     738        547        252        277        317        501        407   
 16     293        284        549        260        381        258        240   
 17     213        261        410        316        427        314        302   
 19     370        128        138        133        143        248        342   
 21     367        363        558        376        384        241        374   
 22     440        452        399        666        542        647        215   
 23     426        626        528        257        275        484        817   
 24     268        243        302        847        925        423        190   
 25     266        365        213        231        253        316        371   
 26     218        200        302        340        340                         
 27     771                   644        555        424        316        279   
 29     423        564        542       1063        673        365        475   
 30     190        195        265        180        207        210        194   
 31     866        245        560        239        360        446        551   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   albh algo amc2 ankr aoml auck bahr brmu brus cas1 cat1 dav1 dubo eisl fair gol2 goug hark harv hob2 hofn holb irkt kely kunm mac1 mad2 mag0 mas1 mate mcm4 mdvo medi nano nlib noto nya1 ohig onsa petp pie1 pol2 ramo sant sch2 shao stjo suth thu1 tid2 tixi toul tro1 tskb uclu usno usud vesl vill will wsrt wtzr wuhn yaka yar1 yell zeck

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