Subject: [IGSREPORT-1546] Wk 0785 JPL Analysis Report
From: D C Jefferson
Date: Tue, 7 Feb 1995 13:38:23 PST

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IGS Electronic Report    Tue Feb  7 13:38:23 PST 1995      Message Number 1546
******************************************************************************

Author: D C Jefferson
Subject: Wk 0785 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0785 (DAYS 22-28, DATES 1995 Jan 22 - Jan 28)
******************************************************************************

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/0785.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07857.sum           This text file.
jpl07857.erp           Earth rotation parameters for GPS week 785.
jpl0785[0-6].sp3       GPS ephemerides for GPS week 785, sp3 format.
______________________________________________________________________________

According to IGS Mail No. 857, ALGO was unusable on day 024 (Jan 24) from
18:36 to 21:01 UT.  On this day data from ALGO are not used in the 
determination of satellite parameters.  NLIB was used as a reference clock 
on this day; on all other days ALGO was used.

Also, according to IGS Mail Nos. 846 and 864, the receiver and antenna at
McMurdo, Antarctica, were moved to a new location.  The new site ID for the
updated station is MCM4, and we began including data for this site on day 025
(Jan 25).  The position of this site is still estimated along with the global
set of stations used to determine the GPS orbits, and the following nominal 
coordinates were assumed:

    X = -1310621.7618 m,   Y =  310414.1581 m,    Z = -6213400.4197 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 MATE excluded on days 22, 25, and 27 (Jan 22, 25, 27).
WARNING: Data from MATE, VILL excluded on day 23 (Jan 23).
WARNING: Data from ALGO, MATE excluded on day 024 (Jan 24). NLIB used as a               reference clock on this day only.

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 785 (1995 Jan 22 - Jan 28)
     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
49739.50 -12383  46568   343854  2537    6    6    13     13 32 12 24  175  210 
49740.50 -12214  46790   341292  2588    6    6    13     13 32 12 25  140  222 
49741.50 -12057  47034   338671  2653    7    7    14     14 32 10 25  169  251 
49742.50 -11936  47303   336001  2688    6    6    13     13 32 11 25  157  232 
49743.50 -11766  47544   333254  2806    5    5    13     13 32 13 25  140  259 
49744.50 -11684  47738   330492  2717    5    5    12     12 32 12 25  107  210 
49745.50 -11592  47930   327778  2712    5    5    12     12 32 12 25   97  166 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 785:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 785 (1995 Jan 22 - Jan 28)
      95  1 22   95  1 23   95  1 24   95  1 25   95  1 26   95  1 27   95  1 28
prn   3d rss (m)
  1       0.20       0.21       0.23       0.30       0.21       0.26       0.30
  2       0.34       0.20       0.19       0.20       0.15       0.22       0.37
  4       0.36       0.31       0.32       0.11       0.12       0.17       0.29
  5       0.18       0.11       0.09       0.14       0.15       0.16       0.17
  6       0.19       0.38       0.41       0.41       0.26       0.44       0.36
  7       0.17       0.12       0.11       0.09       0.18       0.18       0.16
  9       0.18       0.13       0.06       0.10       0.18       0.11       0.14
 12       0.61       0.54       0.42       0.40       0.44       0.40       0.41
 14       0.24       0.23       0.27       0.33       0.28       0.37       0.38
 15       0.26       0.34       0.20       0.22       0.28       0.26       0.29
 16       0.07       0.16       0.17       0.20       0.23       0.10       0.18
 17       0.25       0.16       0.26       0.19       0.17       0.18       0.19
 18       0.21       0.11       0.08       0.12       0.13       0.24       0.21
 19       0.21       0.17       0.20       0.15       0.13       0.19       0.14
 20       0.23       0.34       0.33       0.30       0.22       0.26       0.14
 21       0.27       0.22       0.16       0.18       0.15       0.18       0.21
 22       0.24       0.17       0.16       0.13       0.26       0.19       0.15
 23       0.28       0.30       0.37       0.46       0.31       0.34       0.34
 24       0.18       0.23       0.18       0.20       0.24       0.10       0.09
 25       0.33       0.23       0.16       0.13       0.14       0.18       0.20
 26       0.16       0.07       0.19       0.18       0.20       0.18       0.08
 27       0.18       0.13       0.10       0.15       0.13       0.07       0.13
 28       0.30       0.20       0.11       0.22       0.27       0.22       0.25
 29       0.27       0.24       0.10       0.26       0.24       0.18       0.24
 31                  0.3        0.21       0.31       0.27       0.14       0.18
_______________________
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 785 (1995 Jan 22 - Jan 28)
 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   6.7    .397e+04    7.22        43.7        4.32        2.86    
ALGO*  5.7    .           .           112.        6.21        3.07    
ALGO.   .9    212.       -1.17        114.        9.00        2.12    
AOA1.  6.7    132.       -.171        79.1        10.3        1.41    
AREQ   6.7    53.5       -.111        36.5        5.49        3.37    
BLYT.  1.3    .288e+06    488.        56.1        8.17        .420    
BOGT   3.3    113.       -.337        44.5        6.71        2.38    
BOR1.  2.6    2.85       -1.52        50.5        8.09        3.01    
BRAN.  6.7    .594e+05   -9.15        103.        9.48        3.89    
BRMU   5.9    .724e+07   -.153e+05    41.7        6.07        3.70    
BRUS.  6.5    .248       -.213        67.1        9.03        4.03    
CARR.  2.9    93.9       -.246        74.1        9.70        1.48    
CAS1   6.7    7.78        585.        38.3        5.16        2.21    
CASA.  3.3    .499e+07   -.136e+05      .         9.51        .894    
CHIL.   .1    .292e+06    407.        67.0        6.00        2.14    
CIT1.  6.7    101.       -.130        64.4        9.41        2.47    
CRFP.   .1    .258e+06    593.        76.0        8.00        2.61    
DAV1   6.6    14.4        47.4          .         4.90        2.05    
DRAO.  6.7    .925        2.90        53.5        7.31        5.29    
EISL    .9    .594e+05   -.209e+04    41.0        7.00        4.04    
FAIR*  5.7    143.        .978          .         5.04        2.99    
FORT   5.6    .123       -.121        50.7        6.04        4.58    
GODE.  6.7    .243       -1.39        72.5        8.14        2.04    
GOLD*  6.4    .598        4.97          .         5.20        2.42    
GRAZ.  5.3    12.5       -.372          .         9.49        .854    
GUAM   6.7    105.       -.115        66.2        6.62        2.12    
HART*  2.4    57.2        1.88          .         5.62        3.17    
HARV.  6.7    142.        .236e+04    87.2        10.8        2.11    
HERS.  5.7    .113e+04    4.05          .         11.3        .903    
HOB2   1.0    .826e-01   -.674        44.0        5.00        3.45    
HOB2.  4.8    81.7       -.423        57.9        10.6        4.37    
JPLM.  5.7    .650e+05    441.        42.5        9.01        3.00    
KERG   6.7    222.       -44.7          .         5.00        3.12    
KIRU.  6.5    3.30       -1.14        66.5        10.9        2.56    
KIT3   1.8    142.        .233        88.5        4.00        4.49    
KOKB*  6.7    594.       -3.06          .         5.87        2.55    
KOSG*  5.1    4.49        4.01          .         3.65        3.61    
KOUR   6.7    1.49        9.47          .         8.04        1.81    
LBCH.  4.2    .210e+05    .286        108.        8.73        .643    
MADR*  6.4    .116       -32.5          .         4.47        3.14    
MAS1   6.6    6.45        3.60        57.1        4.00        4.87    
MATE    .9    .143        .249          .         4.00        3.59    
MATE.  3.5    6.66        .418          .         8.69        .392    
MCM4   3.8    83.2       -.238          .         5.00        1.98    
MDO1   4.8    5.59        .213        33.1        4.22        3.77    
MDO1.  1.9    .529        .110e-02    63.9        10.1        2.09    
METS   1.0    98.7       -.181          .         3.85        2.07    
METS.  3.2    3.82       -.502          .         8.26        .987    
NLIB   3.8    .136        .755        33.2        3.29        3.02    
NLIB.  2.9    .163        .305        57.9        7.67        2.42    
NYAL.  5.1    368.       -4.78          .         7.32        2.16    
OATT.  5.7    190.       -.122        114.        10.4        1.06    
ONSA   4.6    9.70        8.09        40.3        3.67        3.01    
PAMA   6.6    20.4        61.7          .         12.4        .300    
PERT   6.7    13.8        48.8        54.7        5.30        4.47    
PIE1.  6.7    .189       -4.27        66.9        8.73        1.64    
PIN1.   .2    .292e+06    498.        60.0        7.00        .473    
POTS.   .9    570.       -.527        87.1        10.4        1.04    
QUIN.  6.7    1.76        2.34        78.1        10.1        1.47    
RCM5   6.7    .626       -.236          .         4.43        2.87    
SANT*  5.7    .139        .673e-01      .         5.48        2.89    
SHAO   6.6    947.        4.73        46.9        4.53        2.59    
STJO   6.4    .572e+05    134.        73.9        4.17        3.40    
TAIW.  5.8    .131e+04    168.          .         10.4        2.20    
TIDB*  5.5    .141       -.817          .         5.52        2.67    
TMGO.  5.5    .671e+04    .885        129.        8.27        3.06    
TROM*  6.6    4.16        813.          .         4.59        2.78    
TSKB   6.6    2.54        86.4        95.6        5.87        2.58    
UCLP.   .9    86.5       -.208        60.0        7.00        1.81    
USC1.  6.7    108.       -.131        72.9        9.62        2.46    
USUD.  6.6    .794        .336        51.6        8.91        1.99    
VILL.  6.6    65.3       -1.25        57.0        10.9        5.18    
WEST   1.0    .478e-01   -.662e-01    54.0        4.00        3.48    
WEST.  5.7    .171        .488        75.2        7.84        1.58    
WETT*  4.4    61.3        .473          .         4.82        2.92    
WLSN.  4.5    .664e+04   -.504        85.4        9.32        .550    
YAR1*  6.7    2.10       -.271          .         4.60        3.53    
YELL*  6.7    .305       -1.98        41.3        4.00        2.30    
PRN01  6.5    80.7       -1.41        64.5        6.87        2.13    
PRN02  6.5    80.1       -140.        69.6        8.44        1.81    
PRN04  6.7    78.3        9.33        72.8        7.71        1.35    
PRN05  6.5    79.7        86.5        63.2        10.1        1.86    
PRN06  6.7    79.7        598.        64.0        7.16        1.94    
PRN07  6.7    82.6        701.        64.5        7.31        1.80    
PRN09  6.7    82.1       -19.4        69.6        7.00        1.66    
PRN12  6.7    .958       -288.        77.0        6.31        2.49    
PRN14  6.6    80.4        7.97        65.4        8.11        1.69    
PRN15  6.7    3.31        154.        80.4        7.00        1.41    
PRN16  6.7    82.4       -78.2        82.1        7.60        1.46    
PRN17  6.7    80.0       -71.6        69.7        7.57        2.09    
PRN18  6.7    80.2       -6.49        65.6        6.76        1.70    
PRN19  6.7    81.8        120.        69.6        6.87        2.05    
PRN20  6.4    80.0        108.        68.1        7.74        2.07    
PRN21  6.5    80.7       -12.6        70.3        9.18        2.21    
PRN22  6.4    85.8        189.        75.5        9.42        1.51    
PRN23  6.6    81.8        5.41        65.6        9.23        2.04    
PRN24  6.7    82.6        358.        66.1        7.45        1.70    
PRN25  6.7    80.3       -.597e-01    66.2        7.00        1.82    
PRN26  6.7    80.4       -55.0        76.4        7.74        1.69    
PRN27  6.7    80.6        18.0        63.6        6.61        1.93    
PRN28  6.7    2.16        63.1        71.3        7.61        1.81    
PRN29  6.7    80.4        5.35        64.0        6.60        1.99    
PRN31  5.8    663.        52.8        74.7        7.17        2.03    
_______________________
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  1 22   95  1 23   95  1 24   95  1 25   95  1 26   95  1 27   95  1 28
prn   3d rss (m)
  1       6.9        7.8        6.5        7.3        5.4        4.5        4.7 
  2       7.8        7.2        8.0       12.4        7.7        6.8        6.4 
  4      12.5       10.9        9.9       15.1        9.8       12.8       11.7 
  5       7.7        8.0        7.6        7.4        8.2        6.6        6.5 
  6       5.0        5.4        5.3        6.3        6.6        5.6        5.3 
  7       7.1        5.9        5.2        6.4        6.7        7.9        6.6 
  9       9.0       10.1       10.2       12.7        8.7        9.9        9.7 
 12       3.6        2.8        3.4        2.7        2.5        3.7        3.6 
 14       4.2        4.5        3.4        3.4        3.8        4.1        5.1 
 15      11.2        9.5        6.7        6.8       10.9        6.9        6.9 
 16       8.6        7.3        8.5        5.7        6.3        5.7        4.9 
 17      13.2       11.6       10.9       10.7        9.9       10.9       10.2 
 18       5.0        3.3        2.6        2.9        4.2        2.8        3.2 
 19       8.6        8.1        7.4       11.3       11.1       10.3        7.7 
 20       4.5        4.9        5.0        5.1        5.6        5.5        6.8 
 21       8.0        5.8        5.6        9.3        5.6        5.7        6.5 
 22       6.2        5.6        5.4        5.6        6.1        6.3        7.5 
 23      12.2       16.7       14.9       12.9        6.8        3.3        4.6 
 24      12.4       12.6       11.6       12.0       10.2       12.5       12.6 
 25       6.3        9.6        7.1        8.7        7.4        9.0        7.8 
 26       6.3        6.3        5.9        7.8        5.8        4.8        5.4 
 27       7.9        7.9        9.0       10.6       10.2        8.4        8.2 
 28       4.0        5.6        5.3        4.9        7.2        3.5        3.7 
 29       5.2        3.8        1.8        2.5        4.8        3.6        2.7 
 31                  6.5        3.8        4.7        6.2        5.4        3.4 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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