Subject: [IGSREPORT-1498] Wk 0782 JPL Analysis Report
From: D C Jefferson
Date: Mon, 16 Jan 1995 16:27:41 PST

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IGS Electronic Report    Mon Jan 16 16:27:41 PST 1995      Message Number 1498
******************************************************************************

Author: D C Jefferson
Subject: Wk 0782 JPL Analysis Report

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 0782 (DAYS 1-7, DATES 1995 Jan 01 - Jan 07)
******************************************************************************

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/0782.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07827.sum           This text file.
jpl07827.erp           Earth rotation parameters for GPS week 782.
jpl0782[0-6].sp3       GPS ephemerides for GPS week 782, sp3 format.
______________________________________________________________________________

PROCESSING UPDATE 

Beginning with the analysis of day 001 (Jan 1, 1995), several processing
changes have taken place:  

1. Coordinates for the 13 IGS constrained sites are fixed to the ITRF93 values 
   given in IGSMAIL #819 for computation of our orbits and earth orientation 
   parameters.

2. Pseudorange data from DAV1 are not included in our analyses.

3. We are now reporting UT1R-UTC derived only from GPS.  This UT1 product has 
   been continuously integrated without reset since GPS Week 772 in October, 
   1994 (MJD 49648.0) when it was initialized with an IERS Bulletin B final 
   smoothed value.  UT1 values for the two months prior to Jan. 1, 1995 are 
   available to interested parties.  The uncertainties and correlations 
   reported for UT1 in the jpl0www7.erp file reflect the uncertainty for the 
   single day integration only, and thus do not reflect the growth with time 
   due to random walk growth and to systematic orbit error.  Such corrections 
   may be included after the spectral properties of this series become more 
   evident.

4. Starting this week, we compute one line's worth of `engineering data' every 
   day for each receiver and transmitter.  An excerpt of the result from Jan 1, 
   1995, is shown below.  The file is available from the anonymous ftp area of 
   sideshow.jpl.nasa.gov, in pub/jpligsac/ytd.eng (`ytd' for `year-to-date'). 
   Information consists of (i) clock characteristics (noise, drift, and offset),
   (ii) number and rms residuals of pseudorange and phase measurements, and 
   (iii) number of phase breaks determined during pre-fit editing, and total 
   number following continuity check of post-fit residuals.

date
 |          site (`.' means point-positioned)
 |          |     number of time tags for which clock solution is valid
 |          |     |   rms deviation from straight line of clock solution (ns)
 |          |     |   |         drift of clock solution (parts per trillion)
 |          |     |   |         |         clock solution at noon (usec)
 |          |     |   |         |         |         # of pseudorange meas.
 |          |     |   |         |         |         |     rms (cm)
 |          |     |   |         |         |         |     |   # of phase meas.
 |          |     |   |         |         |         |     |   |     rms (mm)
 |          |     |   |         |         |         |     |   |     |   orig
 |          |     |   |         |         |         |     |   |     |   |    tot
 |          |     |   |         |         |         |     |   |     | <-breaks->
 |________  |___  |_  |_______  |_______  |_______  |___  |_  |___  |_  |_   |_
1995-01-01 ALBH  360      3.88     0.986      2.52  1933  54  1932   4  43   51
1995-01-01 ALGO    .         .         .         .  2130  52  2130   4  42   44
1995-01-01 AOA1. 360      83.6     0.224    0.0785  2147  59  2121  12  48   57
1995-01-01 AREQ  360      31.8   0.00375    0.0949  2072  36  2070   5  31   53
...
1995-01-01 FORT  360    0.0951     0.417    -0.417  2135  51  2135   6  28   39
1995-01-01 GOLD  294    0.0412     0.435      4.71     0   .  1637   4  38   41
1995-01-01 GPS10 360      1.01     -25.4      -233  2256  59  4113   9  66  100
1995-01-01 GPS13 338      79.5     -2.37      -134  3025  56  4682  10 111  232
...
1995-01-01 GPS39 357      81.9    -0.872     -16.9  2314  57  3978   7  89  130
1995-01-01 GRAZ. 359      26.7    -0.762    0.0271     0   .  1953  11  60   85
...
1995-01-01 KIT3  358       104     0.362    0.0417  1998 102  1998   4  45   47
1995-01-01 KOKB  360     0.102    -0.638    -0.475     0   .  2140   6  44   65
...

GENERAL 

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 DAV1, KERG excluded on day 001 (Jan 1).
WARNING: Data from NYAL, TROM excluded on days 002 through 005 (Jan 2-5).

In the following table, UT1R-UTC are the assumed nominal values from IERS
Bulletin-B predicts; estimated LODR values are also included.  See IGS Mail
Message 97 for details.

JPL ERP TABLE                                GPS week 782 (1995 Jan 01 - Jan 07)
     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
49718.50 -15277  41921   397355  2675    6    6    12     12 32 12 25  121  285 
49719.50 -15021  42195   394651  2733    6    6    12     12 32 11 25  117  283 
49720.50 -14799  42454   391890  2789    6    6    12     12 32 11 25  111  269 
49721.50 -14612  42702   389120  2752    6    7    12     12 32 11 25   96  242 
49722.50 -14449  42939   386366  2756    6    6    12     12 32 11 25   95  244 
49723.50 -14274  43135   383639  2698    6    6    12     12 32 11 25   91  242 
49724.50 -14148  43367   380953  2674    6    6    12     12 32 12 25  123  265 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 782:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
prn   3d rss (m)
  1       0.30       0.28       0.16       0.11       0.18       0.22       0.16
  2       0.27       0.26       0.19       0.20       0.31       0.41       0.27
  4       0.31       0.14       0.17       0.23       0.29       0.14       0.25
  5       0.42       0.24       0.21       0.17       0.26       0.25       0.30
  6       0.21       0.20       0.21       0.17       0.15       0.22       0.15
  7       0.38       0.22       0.21       0.25       0.28       0.14       0.16
  9       0.30       0.23       0.31       0.25       0.34       0.25       0.34
 12       0.57       0.38       0.38       0.34       0.51       0.66       0.64
 14       0.23       0.17       0.15       0.13       0.12       0.17       0.18
 15       0.33       0.18       0.33       0.26       0.21       0.23       0.24
 16       0.20       0.14       0.20       0.19       0.16       0.14       0.13
 17       0.22       0.18       0.14       0.26       0.34       0.25       0.16
 18       0.21       0.14       0.09       0.12       0.14       0.12       0.09
 19       0.31       0.15       0.09       0.08       0.10       0.09       0.14
 20       0.49       0.56       0.37       0.61       0.89       0.90       1.05
 21       0.23       0.30       0.23       0.14       0.19       0.21       0.20
 22       0.26       0.37       0.32       0.30       0.30       0.18       0.21
 23       0.52       0.70       0.54       0.47       0.31       0.63       0.46
 24       0.22       0.17       0.20       0.23       0.21       0.18       0.24
 25       0.28       0.34       0.34       0.23       0.21       0.20       0.18
 26       0.33       0.18       0.14       0.16       0.14       0.15       0.17
 27       0.22       0.18       0.14       0.11       0.15       0.22       0.09
 28       0.27       0.30       0.29       0.21       0.26       0.20       0.16
 29       0.23       0.21       0.10       0.10       0.09       0.10       0.14
 31       0.34       0.38       0.26       0.17       0.24       0.14       0.23
_______________________
END ORBIT REPEATABILITY 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  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
prn   3d rss (m)
  1       8.3        4.1        6.3        6.1        7.0        6.1        7.7 
  2       4.9        4.3        3.9        4.9        4.6        5.1        7.5 
  4      11.2       10.3        9.0        8.9       10.8       12.9       12.8 
  5       6.7        6.7        7.2        7.9        7.7        8.1        8.3 
  6       5.6        5.5        6.7        6.5        6.8        7.9        8.3 
  7       8.0        6.7        6.2        6.3        6.5        5.8        6.1 
  9      12.2       11.4       10.3       10.6       11.5       10.8       10.0 
 12       4.0        5.6        4.7        3.8        3.6        4.0        5.1 
 14       2.8        3.0        2.8        2.7        2.5        3.6        2.8 
 15       9.3        6.5        9.1        9.9       10.7       12.5       14.1 
 16       5.2        5.4        5.4        5.2        5.2        5.7        4.8 
 17       6.8        6.6        9.0        9.5        8.4        8.7       10.1 
 18       4.1        4.4        3.6        4.2        3.1        2.9        3.4 
 19       9.5        4.6        7.0        6.8        6.3        8.4       13.1 
 20       7.2        8.3        9.0        8.3        9.8       11.6        8.2 
 21       6.1        3.9        3.9        4.2        4.1        5.3        5.7 
 22       7.2       11.6       10.5        6.7        9.3        8.1        6.0 
 23       5.8        2.5        2.8        4.3        3.5        3.8        3.7 
 24      13.1       10.0        9.5        9.5       11.4       12.4       12.1 
 25       7.9        7.0        8.2        6.8        7.9       10.5       18.6 
 26       8.3        9.8        9.6        9.2        7.4        7.3        7.6 
 27       7.8        7.3        8.0        7.0        8.5        8.2        7.2 
 28       6.5        7.7        6.6        6.3        7.1        6.9        7.3 
 29       6.4        7.5        6.9        7.0        5.9        7.5        7.1 
 31       6.6        7.9        6.6        6.9        6.6        6.4        7.0 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

The following tables, as explained in IGS Report Nos. 99 and 295, indicate the
amount of global network tracking data used in this week's analysis:

JPL SITE SUMMARY TABLE (no. stations)        GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
Fiducial 11.4       10.3       10.1       10.5       10.5       10.5       11.3
Total    30.0       31.5       30.7       30.4       31.8       32.2       31.3
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
site    % data
ALBH #     95         90         97         97        100        100        101
ALGO*#    104        105        105         99        104        105        106
AREQ #    101        102         97         86        110        111        110
BOGT #    110        109        109         95         96          0          0
BRMU #     89         92         92         86         89         90         88
CAS1 #    101        104        103        104        105        105        104
DAV1        0         93         81         96         94        100         98
FAIR*     100        100        106        103        108        108        109
FORT #    105        107        105         94        106        106         82
GOLD*      80         70         60         98         89          0         83
KERG        0        104        107        106        107        105         92
KIRU #      0        104        103         99        105          0          0
KIT3 #     98         97         97         97         99        101         95
KOKB*     105        108        107        106        109        109        107
KOSG*      98         97         98         97         95         97         44
KOUR      106        108        107         94         79        107        108
LBCH #      0          0          0          0          0        103          0
MADR*      31         85         93         88         90         94         91
MAS1 #      9          0          0         49        104        103        105
MATE        0         75          0          0          0          0          0
MCMU      114        115        114        108        113        112        115
MDO1 #    106        106        106        100        107        106        107
METS      101          0          0          0          0         93          0
NLIB #    104        104        103         98        103        105        105
PAMA       97         97         96         91        101        101         99
PERT #    100        101        101        100        101        102         98
RCM5      105        106        105         95        104        104        105
SANT*     104         58         32         54         46         86         94
STJO #    103        105        105        100         96        105        105
TAIW      101        104        104        101        103        104         79
TIDB*     104        103        101         93        100         99         99
TMGO #     14          0         39          0          0          0         99
TROM*     106          0          0          0          0        110        105
TSKB #     96         96         94         92        104        108        102
WETT*      97         93         99        100         93         23         88
YAR1*     107        105        105        109        110        110        101
YELL*#    104        103        103        101        105        106        106
_______________________
*Indicates fiducial site; #indicates TurboRogue pseudo-range used
END GROUND STATION INCLUSION TABLE

As described in IGS Report No. 634, the table below indicates the repeatability
of clock solutions for all satellites and stations used in this week's analysis:

JPL CLOCK REPEATABILITY TABLE                GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
comp log10(rms/ps)
PRN01     3          3.1        2.7        2.1        3.0        3.1        2.8
PRN02     2.5        2.6        2.8        2.7        2.4        2.6        2.7
PRN04     3.0        2.6        2.8        2.7        2.7        2.6        2.5
PRN05     2.6        2.5        2.8        2.7        2.7        2.6        2.6
PRN06     2.5        2.8        2.5        2.8        2.8        2.4        2.4
PRN07     2.9        2.6        2.8        2.6        2.6        2.7        2.6
PRN09     2.9        2.9        2.8        2.5        2.7        2.2        2.4
PRN12     2.7        2.5        2.8        2.8        2.8        2.5        2.5
PRN14     2.9        2.7        2.6        2.4        2.9        3.0        2.6
PRN15     2.8        2.4        2.6        2.5        2.9        2.4        2.5
PRN16     2.6        2.8        2.7        2.7        2.9        2.6        2.6
PRN17     2.6        3.0        2.7        2.2        2.7        2.6        3.0
PRN18     2.7        2.7        2.3        2.3        2.7        2.8        2.7
PRN19     2.5        2.6        2.5        2.2        2.5        2.6        2.5
PRN20     2.5        2.8        2.9        2.9        3.0        3.0        3.1
PRN21     2.8        2.7        2.5        2.4        2.6        2.8        2.6
PRN22     2.4        2.9        2.8        2.9        2.7        2.3        2.8
PRN23     3.1        3.1        3.0        2.8        2.9        2.9        3.0
PRN24     2.5        2.9        2.2        2.6        2.7        2.3        2.7
PRN25     2.8        2.2        2.9        3.0        2.9        2.6        2.6
PRN26     2.5        2.5        2.8        2.7        2.9        2.4        2.4
PRN27     2.8        2.7        3.0        2.6        2.5        2.5        2.5
PRN28     2.0        2.7        2.7        2.5        2.6        2.4        2.7
PRN29     2.8        2.8        2.4        2.4        2.6        2.8        2.5
PRN31     2.3        2.5        2.1        2.5        2.1        2.3        2.5
ALBH      2.6        2.5        2.0        1.9        2.6        2.5        2.4
AREQ      2.5        2.6        2.5        2.3        2.7        2.7        1.7
BOGT      2          3.0        3.0        2.4        3                        
BRMU      2.7        2.6        2.3        2.3        2.6        2.6        2.4
CAS1      3          2.4        2.8        2.5        2.7        2.1        2.2
DAV1                 3          3.8        3.0        3.4        3.8        3.8
FAIR      3.0        3.5        3.4        3.3        3.5        2.8        3.2
FORT      2.2        2.3        2.4        2.5        2.6        2.3        2  
GOLD      3          3          3          3.3        3                     2  
KERG                 3          3.2        3.5        3.7        3.8        3.7
KIRU                 3          2.3        2.4        3                        
KIT3      3          3.1        2.9        3.2        3.4        3.2        2.9
KOKB      3.5        3.4        2.6        3.0        3.2        3.2        3.0
KOSG      2.8        3.0        3.5        3.5        3.1        3.2        3  
KOUR      3.4        3.7        3.7        3.5        3.8        3.8        3.6
MADR      4.0        4.0        3.2        3.3        3.7        3.8        3.6
MAS1                                       3          2.5        2.4        2.5
MCMU      3.3        3.4        3.2        3.2        3.5        3.5        3.4
MDO1      2.4        2.5        2.5        2.2        2.5        2.5        2.5
METS      4                                                                    
NLIB      2.5        2.5        2.5        2.4        2.6        2.5        2.0
PAMA      4.1        4.2        4.1        3.9        4.0        4.2        4.1
PERT      2.6        2.4        2.8        2.3        2.4        2.4        2.3
RCM5      3.7        3.7        3.8        3.8        3.6        3.4        3.3
SANT      3.1        3          3          3.2        3          3          3.4
STJO      2          2.6        2.6        2.4        2.7        2.7        2.7
TAIW      3.3        3.3        3.5        3.7        3.6        3.1        3  
TIDB      3.4        3.4        3.4        3.3        3.3        3.2        3.4
TMGO      2                                                                 3  
TROM      3                                                      4          3.7
TSKB      2.9        2.9        2.7        2.9        3.1        3.0        2.4
WETT      3          3.3        3.2        2.9        2.1        3          3.0
YAR1      3.5        2.8        3.6        3.7        3.6        3.3        2.8
YELL      2.7        2.6        1.9        1.7        2.3        2.4        2.1
_______________________
END CLOCK REPEATABILITY TABLE

The tables below represent the amount of data used and clock repeatabilities
for sites that were analyzed using our point-positioning technique (see IGS
Report No. 1267 for details):

JPL POINT-POSITION SITE INCLUSION TABLE      GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
site    % data
AOA1 #    104        105        104        100         79         81         95
BOR1 #     97         97         97         88         94         94         51
BRUS #     96        100        101         94        101          0         99
CASA       91         88         83         90         94         96         96
CIT1 #    105        103        104        100        105        105        105
DAV1       97          0          0          0          0          0          0
DRAO #     98        102        101         98        104        102        103
GODE #    103        103        104         98        104        105        105
GRAZ       96         98         99         92         98         97         95
HARV #    105        104        103        100        105        106        106
HERS       94         96         95         91         98         94         94
JPLM #    105        104        104        100        105        106        105
KERG      103          0          0          0          0          0          0
KIRU #    104          0          0          0          0        106        101
KRAK #    101         66         28          0          0          0          0
LBCH #    102         59         40         75        102          0        102
MATE       55          0         91         75         76         79         75
METS        0         97         98         91        101          0          0
NYAL      107        111        111        103        108        110        107
OATT #     94         94         94         91         94         94         95
ONSA #     98        100        101         94        101        101         97
PIE1 #    104        103        103         99        104        104        105
POTS #      0          0          0         86        100         93         97
QUIN #    103        103        102         99        102        103        103
TMGO #      0          0          0         71         94         99          0
TROM*       0        109        108        101        109          0          0
USC1 #    104        103        104         99        103        104        105
USUD #     95         94         98         95        103         91          0
WEST #    103        102        103         97        103        104        104
WLSN #    101        100         96         87         97        101         66
_______________________
#indicates TurboRogue pseudo-range used
END POINT-POSITION SITE INCLUSION TABLE

JPL POINT-POSITION CLOCK REPEATABILITY TABLE GPS week 782 (1995 Jan 01 - Jan 07)
      95  1  1   95  1  2   95  1  3   95  1  4   95  1  5   95  1  6   95  1  7
comp log10(rms/ps)
AOA1      2.8        2.8        2.4        2.4        2          2.5        2.5
BOR1      3          2.9        2.3        2.1        2.7        2.8        2.6
BRUS      3          3.0        2.7        2.3        2                     2  
CASA      5          5          5          4          4                     5  
CIT1      3.0        3.0        2.6        2.3        2.7        2.7        1.9
DRAO      2.7        2.5        2.1        2.0        2.4        2.4        2.6
GODE      2.8        2.9        2.8        2.5        2.9        2.9        2.4
GRAZ      4.8        5                     5          5                        
HARV      2.6        2.6        2.0        1.7        2.5        2.5        2.3
HERS                 4          5.0        4.9        4.4        4.4        4.6
JPLM      2.8        2.7        2.2        2.0        2.6        2.6        2.4
KIRU      3                                                      2          2.3
KRAK      2.7        2.5        2                                              
LBCH      2.6        3                     2          2                     3  
MATE                            5          4.7        4.7        4.6        4.6
METS                 4          4                                              
NYAL      4          4                                                         
OATT      4.0        3.1        2.0        2.1        2.8        2.7        2.7
ONSA      3.0        2.8        2.3        2.1        2.3        2.7        2.6
PIE1      2.8        2.7        2.4        2.3        2.6        2.8        2.7
POTS                                       3          2.8        2.7        2.4
QUIN      2.5        2.4        2.0        2.3        2.5        2.4        2.6
TMGO                                       3          3.1        3             
USC1      2.8        2.8        2.6        2.4        2.4        2.4        2.3
USUD      2.9        2.7        2.5        2.6        2.9        3             
WEST      3          2.6        2.6        2.6        2.7        2.7        2.1
WLSN      2.8        2.7        2.6        2.8        3.1        3.0        2  
_______________________
END POINT-POSITION CLOCK REPEATABILITY TABLE

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