Subject: [IGSREPORT-3640] Wk 0899 JPL Analysis Report
From: D C Jefferson
Date: Tue, 15 Apr 1997 16:23:28 PDT

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IGS Electronic Report    Tue Apr 15 16:23:28 PDT 1997      Message Number 3640
******************************************************************************

Author: D C Jefferson
Subject: Wk 0899 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0899 (DAYS 89-95, DATES 1997 Mar 30 - Apr 05)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb

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 (128.149.70.41),
directory pub/jpligsac/0899.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08997.sum         This text file.
jpl08997.erp         Earth rotation parameters for GPS week 899.
jpl08997.snx         Ground station coordinates for GPS week 899, SINEX format.
jpl0899[0-6].sp3     GPS ephemerides for GPS week 899, sp3 format.
jpl0899[0-6].tro     Ground station troposphere estimates for GPS week 899.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 cm

According to the file nanu1997.mes obtained from the IGS CBIS, PRN03 was
unusable on day 090 for maintenance.  Data from this satellite were used
in the analysis of this day, and a clock reset of about 114 microseconds
was detected for this satellite at approximately 19:10 UT.

As solutions for day 096 (week 900) are not currently available, GPS orbit
repeatabilities for day 095 reflect overlap with the previous day (094) only.

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 BAHR, CRO1, DGAR, DHLG, FLIN, HART, KERG, KIT3, LHAS, MALI,           MATE, SHAO, WES2, WTZR, YAR1 excluded day 089.
WARNING: Data from ANKR, CRO1, DHLG, GRAZ, HRAO, KELY, KIT3, LHAS, MATE, WES2            excluded day 090.
WARNING: Data from ANKR, CRO1, DAV1, HRAO, KIT3, WES2 excluded day 091.
WARNING: Data from ANKR, HERS, HRAO, KERG, KIT3, NYAL, ZWEN excluded day 092.
WARNING: Data from JOZE, KIT3 excluded day 093.
WARNING: Data from CAS1, HRAO, KIT3, MCM4, TIDB, UPAD excluded day 094.
WARNING: Data from BAHR, CAS1, DGAR, HART, HOB2, IISC, KERG, KIT3, MALI, MCM4,           SNI1, TROM, YAR1 excluded day 095.

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 899 (1997 Mar 30 - Apr 05)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
50537.50 -19090  32489  -284968  2596    4    5    10     10 37  9 25  -18  340 
50538.50 -19114  32771  -287492  2452    3    4     9      9 37 11 25   14  235 
50539.50 -19072  33140  -290017  2598    3    3     9      9 37 12 25   54  303 
50540.50 -18962  33502  -292555  2478    3    3     9      9 37 11 25   42  425 
50541.50 -18887  33878  -295009  2430    4    4     9      9 37  9 25   72  388 
50542.50 -18744  34283  -297463  2479    3    3     9      9 37 11 25   89  382 
50543.50 -18681  34537  -299955  2505    5    5    10     10 37  9 25  121  332 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 899:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 899 (1997 Mar 30 - Apr 05)
      97  3 30   97  3 31   97  4  1   97  4  2   97  4  3   97  4  4   97  4  5
prn   3d rss (cm)
  1       9          8         13         16         18         29         24   
  2      21         25         17          8          8          8         17   
  3      30         18         46         64         30         68         64   
  4      12         11         12         12         10          8         15   
  5      10         12         24         14         16         13         12   
  6      20         17         18         18         16         16         13   
  7      16         10         16         13          9          8         13   
  9      13         14         14         13         20         14         21   
 10      10         14         14         34         18         16         30   
 14      20         15         20         12         16         10         17   
 15       9         35         42         18         15         19         19   
 16      12         15          8         13         11          7         15   
 17      15         11          9         18         13         25         15   
 18      12         13         16         42         32          6         19   
 19      13         22         53         50         13         16         19   
 21      11         11         10         19         19         30         32   
 22      10         14         16         17         16         23         16   
 23      23         17         21         20         25         24         29   
 24       8          9         15         26         11         19          9   
 25      12         18         25         14         14         20         18   
 26      16         17         24         14         19         19         18   
 27      29         14         19         24         18         18         14   
 29      16         58         46         17         12         16         26   
 30      11          9         14         10         22         15         14   
 31      23         23         30         10         10         18         22   
_______________________
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 899 (1997 Mar 30 - Apr 05)
 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*  7.1    .           .           46.3        4.87        2.78    
ANKR   2.9    127.       -.311        58.3        4.71        3.09    
ASC1   6.8    .218e+04   -.277        77.0        5.73        1.86    
AUCK   2.0    78.6       -.366        40.0        6.00        2.99    
BAHR   5.0    .452        263.        48.0        4.43        3.51    
BRAZ   1.9    115.       -.294        68.0        5.54        2.60    
BRMU   2.0    120.       -.256        39.0        6.00        3.18    
BRUS   1.0    .341        1.86        60.0        4.00        2.96    
CAS1   2.0    7.04        .114e+04    40.0        5.52        1.76    
CHAT   5.0    108.       -.239        80.4        6.13        2.82    
CHUR   1.0    2.11        .957e-01    46.0        7.00        1.30    
COCO   5.8    135.       -.199e+04    42.4        6.02        2.92    
CRO1   4.0    128.       -.358        50.0        6.08        2.38    
DAV1   3.8    24.2        .198e+04    31.5        5.25        1.43    
DGAR   4.9    121.       -.262        75.0        6.46        1.89    
DRAO   4.0    .853        .465        38.5        4.53        3.24    
FAIR*  7.0    .136        .827        34.7        4.90        2.50    
FLIN   2.0    84.2       -.394        48.0        4.53        2.48    
FORT   7.0    .184       -.765        51.3        7.30        3.19    
GOL2*  7.0    102.       -.401        49.7        4.76        3.04    
GUAM   7.0    124.       -.273        59.1        7.73        2.26    
HART*  5.0    23.8        10.7        46.4        5.81        2.77    
HOB2   2.0    .333        .731        48.0        6.00        3.05    
IISC   6.0    98.8       -.246        72.5        6.55        2.78    
IRKT   6.6    67.4       -.356        54.8        5.00        2.95    
KELY   1.0    207.       -.274          .         6.00        1.64    
KERG   4.0    110.        111.          .         6.29        2.55    
KIRU   1.0    2.88        5.93        50.0        7.00        2.14    
KOKB*  6.6    379.       -.189        79.5        5.45        1.82    
KOSG*  7.0    1.76       -13.2        40.4        4.16        2.67    
KOUR   2.0    3.95        3.70          .         8.00        1.95    
KWJ1   7.0    186.       -.269        75.7        7.65        1.68    
LHAS   4.9    .136e+05    .110        65.9        5.62        2.40    
MAC1   3.8    84.0       -.282        31.3        4.79        2.43    
MADR*  6.9    .116        4.46          .         5.86        2.70    
MALI   5.0    46.2       -519.          .         9.06        2.12    
MAS1   7.0    138.        .173        41.2        4.73        2.62    
MCM4   5.0    97.8       -.199        37.5        5.22        2.03    
MDO1   2.0    1.11        .181        33.5        5.00        3.00    
MDVO   2.9    .641e+05    881.        66.3        6.00        2.65    
METS   1.0    .258       -2.40        67.0        3.00        2.27    
MKEA   7.0    .112       -.221        48.3        6.03        2.43    
NLIB   1.0    .151        2.74        46.0        4.00        2.94    
NOTO   4.0    .161        12.7        32.0        4.54        3.01    
ONSA   2.0    .756e-01   -1.80        39.5        4.14        2.37    
PAMA   4.2    260.       -.273        80.8        11.5        1.62    
PERT   3.9    2.55       -11.4        53.1        5.00        3.05    
PIE1   3.0    .881e-01   -.613e-01    38.7        4.69        2.63    
RCM6   5.0    89.0       -.246        58.2        5.49        2.78    
REYK   5.0    79.9       -.300        57.4        6.00        2.07    
SANT*  6.2    555.        .196        40.9        5.88        1.64    
SHAO   1.0    93.5       -.442        44.0        4.00        2.79    
STJO   4.0    3.63        .240        35.5        4.00        2.64    
TAEJ    .9    3.35        811.        43.0        6.00        2.44    
TID2*  2.8    .129       -.783e-01    41.0        5.37        2.78    
TIDB   1.0    .112       -.403          .         5.00        3.12    
TSKB   1.0    1.34        .256e-01    43.0        5.00        3.30    
USUD   5.0    4.00        1.61        37.0        5.04        3.00    
VILL   1.0    6.73       -.878        52.0        3.00        2.73    
WTZR*  6.0    48.6       -.916e-01    61.2        4.36        2.74    
WUHN   4.9    5.35       -185.        44.4        5.00        2.64    
YAR1*  3.9    2.88       -.339          .         5.54        2.58    
YELL*  6.0    25.2       -.188        38.9        4.71        1.55    
PRN01  7.0    82.6        16.3        55.1        6.15        2.25    
PRN02  7.0    80.7       -350.        56.6        5.31        2.54    
PRN03  6.8    .106e+05    34.1        57.5        5.73        2.33    
PRN04  7.0    79.3        20.5        51.2        6.03        2.58    
PRN05  7.0    80.9        90.0        49.9        5.16        2.75    
PRN06  7.0    81.7        4.08        50.5        5.59        2.55    
PRN07  7.0    78.8        741.        51.2        5.74        2.38    
PRN09  7.0    82.3       -33.4        55.6        5.87        2.29    
PRN10  7.0    80.1        5.79        51.1        5.74        2.27    
PRN14  6.9    80.2        17.7        51.7        5.44        2.27    
PRN15  7.0    2.61        410.        56.7        6.00        2.22    
PRN16  7.0    82.7        6.13        50.1        5.00        2.57    
PRN17  7.0    81.4       -145.        53.5        5.16        2.30    
PRN18  7.0    78.0        24.6        47.6        5.75        2.60    
PRN19  6.9    80.6        243.        53.4        5.87        2.47    
PRN21  7.0    81.1        43.3        58.0        6.00        2.33    
PRN22  7.0    81.4        381.        51.3        6.00        2.36    
PRN23  7.0    82.8        11.0        54.9        5.73        2.29    
PRN24  7.0    81.9        292.        53.7        6.03        2.48    
PRN25  6.9    78.2       -5.46        53.3        6.17        2.19    
PRN26  7.0    82.1       -147.        53.6        5.87        2.32    
PRN27  7.0    82.8        23.5        53.9        5.74        2.46    
PRN29  7.0    80.3        8.23        51.1        5.94        2.47    
PRN30  7.0    84.0       -45.9        51.0        5.59        2.75    
PRN31  6.9    79.3        287.        52.1        5.60        2.30    
_______________________
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
      97  3 30   97  3 31   97  4  1   97  4  2   97  4  3   97  4  4   97  4  5
prn   3d rss (cm)
  1     340        528        355        216        455        623        442   
  2     257        312        162        270        266        274        418   
  3     331        283        418        716        530        328        265   
  4     265        297        682        428        583        573        256   
  5     248        290        269        203        195        187        236   
  6     519        573        586        579        553        519        458   
  7     221        239        303        358        267        220        245   
  9     378        319        215        187        258        339        476   
 10     382        384        595        458        274        509        377   
 14     319        392        459        665       1596        321        532   
 15     374        257        221        248        237        217        228   
 16    1448        890        259        851       1491        596        208   
 17     260        220        216        248        200        226        314   
 18     318        321        336        298        972        423        327   
 19    1047        159        188       3215        269        413        519   
 21     164        239        335        384        160        176        270   
 22     442        478        395        443        660        503        462   
 23     278        225        227        246        368        449        478   
 24     207        185        337        284        230        306        314   
 25     377        317        371        286        146        167        328   
 26     872        240        314        350        143        182        338   
 27     336        397        214        577        207        289        328   
 29     508        689        450        450        289        402        286   
 30     240        238        191        213        230        350        439   
 31     163        280        330        243        317        245        181   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo ankr asc1 auck bahr braz brmu brus cas1 chat chur coco cro1 dav1 dgar drao fair flin fort gol2 guam hart hob2 iisc irkt kely kerg kiru kokb kosg kour kwj1 lhas mac1 madr mali mas1 mcm4 mdo1 mdvo mets mkea nlib noto onsa pama pert pie1 rcm6 reyk sant shao stjo taej tid2 tidb tskb usud vill wtzr wuhn yar1 yell

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