Subject: [IGSREPORT-1695] Wk 0795 JPL Analysis Report
From: D C Jefferson
Date: Wed, 19 Apr 1995 9:08:48 PDT

******************************************************************************
IGS Electronic Report    Wed Apr 19  9:08:48 PDT 1995      Message Number 1695
******************************************************************************

Author: D C Jefferson
Subject: Wk 0795 JPL Analysis Report

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 0795 (DAYS 92-98, DATES 1995 Apr 02 - Apr 08)
******************************************************************************

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/0795.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07957.sum           This text file.
jpl07957.erp           Earth rotation parameters for GPS week 795.
jpl0795[0-6].sp3       GPS ephemerides for GPS week 795, sp3 format.
______________________________________________________________________________

Starting this week, estimated parameters for point-positioned sites (IGS Report 
1267; jpl07677.sum) are in the reference frame defined by the free-network 
global solution.  (Systematic errors in ITRF coordinates and velocities of the 
13 IGS fiducials will therefore not affect the results of point-positioned 
sites.)  This is achieved by using free-network satellite parameters (orbits 
and clocks) determined in the global solution.  Satellite products that are 
posted are not affected, and still reflect the strict imposition of constraints 
for the IGS fiducials.

Also beginning this week, we include data from two new sites: CICE (Ensenada,
Mexico) and WHC1 (Whittier College, California, USA).  As with most stations, 
these sites are given the opportunity to participate in the orbit and clock 
solution as the global site distribution varies.  The following nominal 
coordinates were assumed:

   CICE: X = -2433337.6578 m,   Y = -4845000.8573 m,   Z =  3348405.7849 m
   WHC1: X = -2488200.3629 m,   Y = -4673489.3529 m,   Z =  3544650.3796 m

Due to potential problems, data from the following stations 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 VILL excluded on day 092 (Apr 2).
WARNING: Data from LAMA, METS excluded on day 093 (Apr 3).
WARNING: Data from WETT excluded on day 097 (Apr 7).
WARNING: Data from LAMA excluded on day 098 (Apr 8).

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 795 (1995 Apr 02 - Apr 08)
     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
49809.50   3612  55704   153668  2794    5    6    14     14 34 11 25  324  -48 
49810.50   3936  55699   150873  2795    4    5    13     13 34 13 25  316  -14 
49811.50   4279  55697   148091  2770    4    5    13     13 34 12 25  318  -41 
49812.50   4593  55668   145323  2766    4    5    13     13 34 13 25  326  -47 
49813.50   4907  55616   142539  2802    5    5    13     13 34 13 25  328  -14 
49814.50   5230  55631   139719  2837    5    5    13     13 34 12 25  312  -11 
49815.50   5541  55676   136884  2834    4    5    13     13 34 13 25  291  -14 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 795:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 795 (1995 Apr 02 - Apr 08)
      95  4  2   95  4  3   95  4  4   95  4  5   95  4  6   95  4  7   95  4  8
prn   3d rss (m)
  1       0.13       0.09       0.16       0.14       0.25       0.20       0.15
  2       0.35       0.20       0.27       0.28       0.14       0.10       0.16
  4       0.27       0.19       0.17       0.12       0.13       0.13       0.14
  5       0.14       0.24       0.10       0.12       0.12       0.15       0.15
  6       0.15       0.29       0.41       0.33       0.26       0.31       0.17
  7       0.34       0.29       0.20       0.13       0.19       0.22       0.22
  9       0.20       0.20       0.23       0.12       0.17       0.14       0.16
 12       0.10       0.18       0.10       0.15       0.11       0.23       0.17
 14       0.29       0.14       0.18       0.21       0.23       0.19       0.25
 15       0.49       0.40       0.38       0.36       0.34       0.39       0.41
 16       0.24       0.19       0.26       0.31       0.24       0.21       0.12
 17       0.14       0.12       0.21       0.20       0.23       0.22       0.24
 18       0.38       0.26       0.16       0.14       0.27       0.18       0.35
 19       0.31       0.18       0.19       0.12       0.15       0.13       0.18
 20       0.09       0.11       0.07       0.35       0.31       0.38       0.24
 21       0.18       0.18       0.12       0.20       0.25       0.15       0.19
 22       0.15       0.08       0.14       0.16       0.31       0.17       0.12
 23       0.12       0.10       0.09       0.21       0.27       0.26       0.15
 24       0.12       0.10       0.09       0.10       0.15       0.17       0.20
 25       0.12       0.25       0.29       0.18       0.20       0.16       0.16
 26       0.17       0.11       0.16       0.11       0.26       0.21       0.17
 27       0.21       0.20       0.12       0.26       0.22       0.12       0.16
 28       0.16       0.12       0.20       0.22       0.14       0.23       0.16
 29       0.28       0.23       0.18       0.16       0.11       0.10       0.19
 31       0.39       0.34       0.30       0.28       0.38       0.36       0.31
_______________________
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 795 (1995 Apr 02 - Apr 08)
 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.  5.6    4.68        1.76        34.5        5.73        2.72    
ALGO*  7.2    .           .           43.2        4.03        2.77    
AOA1.  5.5    521.        1.02        73.0        7.44        1.81    
AREQ   3.4    .439e+05    1.27        50.6        5.73        1.38    
BLYT   2.0    .288e+06    480.        58.0        5.00        3.38    
BLYT.  4.0    .289e+06    485.        58.8        7.84        3.71    
BOR1   1.0    2.06       -.201        39.0        3.00        2.90    
BOR1.  4.4    1.74       -.761e-01    39.2        5.55        2.65    
BRAN.  3.7    .947e+05    245.        103.        8.47        2.43    
BRAZ.  2.9    .241e+04    .591        163.        12.5        1.49    
BRIB.  5.5    .290e+06    485.        65.8        8.73        3.26    
BRMU   2.0    90.4        1.03        42.0        5.52        3.01    
BRMU.  4.0    96.1        1.08        41.4        7.55        2.73    
BRUS.  4.9    .215        7.39        54.5        6.08        2.57    
CARR.  5.6    92.3        1.07        51.2        6.75        2.39    
CAS1   5.9    12.0        150.        39.5        5.18        1.63    
CASA   6.9    .528e+07   -.130e+05    36.4        4.76        2.38    
CHIL.  3.5    .286e+06    415.        91.9        9.22        2.66    
CICE.   .8    34.3        1.11        31.0        7.00        2.70    
CIT1.  5.2    118.        1.05        44.8        6.21        2.86    
CMBB    .9    .287e+06    495.        76.0        8.00        2.85    
CMBB.  4.6    .290e+06    494.        76.4        10.5        3.25    
CRFP.  5.5    .288e+06    454.        89.4        8.74        3.52    
DAV1    .2    6.37        210.        84.0        7.00        1.26    
DAV1.  4.7    11.5        193.        66.0        7.73        1.34    
DENC.  5.0    .288e+06    486.        56.7        4.92        .493    
DRAO.  5.3    .614        .139        47.6        6.26        2.98    
EISL   6.9    .659e+07   -.149e+05    44.6        6.45        2.71    
FAIR*  6.7    .167e+05   -12.4          .         5.56        1.63    
FARB.  5.5    .289e+06    456.        50.4        8.78        2.92    
FORT   6.9    14.8        1.48        51.3        7.08        3.18    
GODE.  5.6    .281       -1.58        42.3        6.00        2.17    
GOLD*  5.4    .496        1.13          .         4.38        2.11    
GRAZ   1.0    3.17        108.          .         5.00        2.02    
GRAZ.  4.7    .935e+04    31.1          .         7.55        2.14    
GUAM   6.9    101.        1.06        63.9        6.75        2.11    
HART*  7.0    26.6        3.52          .         6.89        2.25    
HARV   1.0    .749e+07    .130e+05    72.0        6.00        2.82    
HARV.  4.8    .860e+07    .155e+05    75.2        7.33        2.35    
HERS   1.0    32.2        27.2          .         4.00        2.05    
HERS.  4.8    143.        52.3          .         6.18        2.03    
IISC   2.9    .290e+06    493.        62.0        6.28        2.12    
JOZE.  3.4    11.1        85.7        50.8        8.02        2.96    
JPLM.  5.6    .292e+05    153.        26.5        6.12        2.95    
KERG   4.8    158.       -48.0          .         5.22        1.96    
KIRU   5.6    422.        1.26        77.8        6.88        1.52    
KIRU.   .8    3.70        3.45        71.0        9.00        1.64    
KIT3   6.8    .216e+06   -5.86        149.        4.59        2.66    
KOKB*  7.0    .952e-01    2.22          .         5.73        2.53    
KOSG*  6.9    25.2        7.13          .         3.63        2.08    
KOUR   5.0    3.00       -3.38          .         9.49        2.07    
KOUR.  1.6    2.30       -3.30          .         12.5        2.11    
LAMA   1.0    503.        6.41          .         3.00        2.32    
LAMA.  3.4    .180e+05    8.39          .         5.13        .564    
LBCH   5.8    179.        1.06        70.7        5.23        2.60    
LBCH.   .8    585.        .918        73.0        7.00        2.76    
LMNO   1.9    .286e+06    494.        57.0        4.54        1.05    
LMNO.  3.8    .286e+06    500.        55.0        6.27        1.14    
LONG.   .2    .286e+06    461.        168.        10.0        1.18    
MADR*  6.7    .118       -1.62          .         4.45        2.44    
MAS1   1.0    353.       -2.33        67.0        4.00        2.35    
MAS1.  4.8    5.64       -3.46        68.9        7.07        3.00    
MATE.  3.9    15.1        1.58          .         6.23        2.05    
MATH.  4.9    .283e+06    491.        48.6        6.90        2.56    
MCM4   6.9    77.5        1.07          .         4.74        1.57    
MDO1   2.0    9.00        .191        35.5        4.53        2.27    
MDO1.  4.0    .701        .123        32.4        7.06        2.50    
METS.  5.2    .263       -3.35          .         6.24        1.86    
MONP.  2.4    .289e+06    472.        71.7        8.00        3.43    
NLIB.  5.6    .133        1.32        39.6        6.02        2.46    
NYAL.  4.8    .336        105.          .         7.30        1.66    
OAT2.  5.4    513.        1.04        39.1        5.91        2.77    
OHIG   6.1    .142e+05    1.09        55.6        4.57        1.63    
ONSA.  4.7    .254e+06   -9.77        41.7        6.41        1.84    
PAMA   4.9    12.1        .455          .         11.8        .892    
PIE1   1.0    .129       -3.83        37.0        5.00        2.31    
PIE1.  4.8    .154       -3.79        36.7        5.87        2.47    
PIN1.  5.5    .290e+06    480.        52.7        7.88        3.67    
PLTC.  5.5    .290e+06    492.        52.9        5.03        .683    
POTS.  5.5    77.2        1.06        60.1        6.76        2.10    
PVEP.  5.1    .289e+06    512.        117.        11.8        2.45    
QUIN   1.0    1.42       -126.        56.0        7.00        1.99    
QUIN.  4.8    1.45       -126.        47.5        6.72        2.26    
RCM5   5.0    199.        1.11          .         7.15        2.54    
RCM5.  1.6    1.16        .990          .         6.52        2.58    
SANT*  5.3    1.00       -3.44          .         5.23        2.30    
SHAO   6.8    1.67        2.23        42.8        4.15        2.32    
SIO3   1.0    .289e+06    624.        75.0        5.00        3.46    
SIO3.  4.8    .291e+06    467.        80.2        7.35        3.08    
STJO   7.0    6.25        226.        64.8        4.00        2.82    
TAIW.  5.4    3.62        363.          .         8.19        2.20    
TIDB*  6.7    .101        .345          .         5.30        2.62    
TMGO   1.0    877.        4.15        166.        6.00        1.65    
TMGO.  3.9    .162e+04    1.36        138.        13.0        .787    
TRAK   2.7    .290e+06    484.        86.3        7.72        3.35    
TRAK.   .8    .290e+06    479.        83.0        9.00        3.40    
TROM*  6.7    .451e+04    119.          .         5.15        1.36    
TSKB   2.0    1.17        190.        53.3        4.58        2.88    
TSKB.  3.9    .391e+05    99.3        55.0        8.35        2.66    
UCLP   1.0    91.6        1.07        35.0        3.00        3.21    
UCLP.  4.8    86.3        1.06        37.3        6.21        2.88    
UPAD    .8    .279e+06    522.        81.0        7.00        2.67    
UPAD.  3.7    .280e+06    530.        80.9        9.41        2.78    
USC1.  5.6    116.        1.04        57.8        7.15        2.90    
USUD   1.0    1.13        1.01        38.0        4.00        2.68    
USUD.  4.7    .726        1.11        39.1        7.84        2.51    
VILL   5.9    427.        2.26        82.8        4.09        2.59    
VILL.   .6    5.49       -.222        66.0        2.00        .129    
VNDP.  4.0    .290e+06    461.        53.7        7.42        3.65    
WEST.  5.6    .206        3.60        52.6        5.59        2.56    
WETT*  5.9    245.        3.09          .         4.20        1.88    
WETT.   .8    .           .             .         .000e+00    .957e-01
WHC1.   .7    82.9        1.12        48.0        7.00        2.20    
WHI1.  4.5    .657e+05    8.91        54.3        6.77        1.55    
WLSN    .9    96.0        1.09        69.0        7.00        2.55    
WLSN.  4.0    101.        1.16        69.2        9.61        1.93    
YAR1*  6.8    29.2        1.71          .         4.16        2.47    
YELL*  5.3    .226        .927        44.1        4.51        1.25    
ZIMM    .6    .289e+06    499.        71.0        5.00        1.62    
ZIMM.  2.9    .287e+06    502.        70.7        8.17        2.07    
PRN01  6.7    83.9        40.5        54.9        7.02        2.09    
PRN02  7.0    80.9       -154.        63.0        6.16        2.03    
PRN04  7.0    81.1        20.9        65.3        6.45        1.65    
PRN05  7.0    81.0       100.0        58.6        6.59        1.80    
PRN06  6.8    79.5        348.        56.8        7.31        2.11    
PRN07  6.7    82.9        704.        61.9        6.31        1.81    
PRN09  7.0    80.9       -25.4        65.8        6.46        1.52    
PRN12  6.9    .863       -476.        90.9        6.23        1.95    
PRN14  7.0    79.4        9.80        56.7        6.16        1.99    
PRN15  7.0    2.92        175.        68.1        6.59        1.68    
PRN16  7.0    81.0       -82.6        65.0        7.44        1.75    
PRN17  7.0    81.4       -77.0        62.8        6.45        2.25    
PRN18  6.7    82.6       -7.42        61.2        6.86        1.97    
PRN19  7.0    81.0        325.        63.0        6.31        2.20    
PRN20  7.0    82.8        191.        63.4        6.43        1.81    
PRN21  6.9    81.6       -14.2        59.7        6.33        2.33    
PRN22  7.0    78.9        208.        67.9        7.00        1.85    
PRN23  6.8    81.2        8.81        56.6        6.45        2.16    
PRN24  7.0    81.0        650.        57.4        6.45        1.84    
PRN25  6.8    80.1        1.40        58.1        6.60        2.02    
PRN26  6.7    79.1       -76.0        68.4        7.15        1.76    
PRN27  7.0    79.2        27.1        64.2        6.89        2.10    
PRN28  6.6    2.16        6.27        87.4        6.31        2.16    
PRN29  6.7    80.2        9.12        58.6        6.46        2.07    
PRN31  6.6    80.0        80.8        70.1        7.00        1.91    
_______________________
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
      95  4  2   95  4  3   95  4  4   95  4  5   95  4  6   95  4  7   95  4  8
prn   3d rss (m)
  1       8.7       10.9        6.5        7.9        8.6        8.6        6.6 
  2       6.0        8.1        7.4        7.5        3.5        3.9        7.8 
  4       4.2        3.7        4.8        5.4        7.6        6.0        4.2 
  5       4.8        4.6        5.0        4.6        4.5        4.5        5.1 
  6      10.6        6.0        5.4        5.3        6.6        5.2        5.9 
  7       9.0        8.2        9.5        8.9        9.4        9.6       10.6 
  9       2.9        3.9        4.1        3.9        3.8        3.8        4.1 
 12       2.9        3.1        2.5        2.9        3.2        4.4        3.1 
 14       5.8        3.9        4.2        4.8        6.6        5.8        4.8 
 15       3.2        3.2        3.7        4.7        4.0        3.1        3.6 
 16       5.8        8.2        7.3        9.1        8.7       12.0       10.6 
 17       4.6        4.7        4.0        5.1        4.9        5.0        4.5 
 18      13.5        9.6        9.6       11.0       11.1       12.0       16.9 
 19       4.8        4.4        3.0        2.9        4.5        3.6        6.6 
 20       3.6        3.8        3.8        3.6        2.8        3.1        3.2 
 21       3.5        4.2        3.9        4.1        4.3        4.0        4.2 
 22       6.3        6.5        7.0        5.6        4.5        4.8        4.6 
 23       9.6       12.3        7.8        9.3        8.1        8.9        8.0 
 24       4.7        4.7        5.3        6.3        7.9        8.5        7.2 
 25       4.7        4.8        4.8        4.4        4.8        5.1        4.2 
 26       8.3        7.5        7.8        7.0        8.1       10.6       13.4 
 27       5.9        5.4        4.9        4.8        6.0        5.6        5.7 
 28       4.4        4.5        5.4        5.3        6.1        5.3        5.9 
 29      10.9       10.0        9.0       12.3       12.9       12.6       12.5 
 31       5.0        4.9        5.5        5.2        5.9        5.0        4.8 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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