Subject: [IGSMAIL-117] EMR analysis report
From: Jan Kouba
Date: 12 OCT 1992 14:27:44

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IGS Electronic Mail       12-OCT-1992 14:27:44       Message Number 117
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==============================================================================
                   THIS FILE CONTAINS 4 MESSAGES
==============================================================================

From:    Jan Kouba
Subject: EMR analysis report
         -------------------

Jan Kouba
Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: [email-masked]

    from:    J. Kouba
    Subject: Geodetic Survey Division (GSD), SMRSS, EMR analysis results
             for the GPS week # 664 (Sep 29-Oct 02, 1992)

    submitted by:
    J. Kouba * , P. Tetreault, R. Ferland, F. Lahaye, M. Caissy, P. Heroux

    Geodetic Survey Division (GSD), Surveys Mapping & Remote Sensing Sector
    (SMRS), Energy Mines and Resources (EMR), 615 Booth Str., Ottawa, K1A 0E3
*   on secondment to the Geodetic Survey from the Geophysics Div., Geological 
    Survey of Canada (GSC), EMR, 1 Observatory cresc., Ottawa, K1A 0Y3

       
      Our analysis utilizes the JPL GIPSY/OASIS II (UNIX) software system 
and data from all (up to 7) Canadian stations augmented by up to 10, globally 
distributed, core stations (see Table 1 for the list of stations).  
      Submitted results start with GPS Week # 664 and include only days when 
AS was not invoked. This effort is a part of a joint pilot project to test the
so called "Active Control System" in Canada and involves the  Geodetic
Survey (GSD), SMRSS, the Geophysics Division and Pacific Geoscience Centre of
the Geological Survey of Canada, all three institutions are part of the
Department of Energy, Mines & Resources (EMR).

        Table 1 : Station Summary (also indicated are day no. for which a 
particular station is not included in the daily solution, either due to being 
down or data being late) 

 station               IGS code        missing day no. of 1992

Albert Head, CAN       ALBH
Algonquin, CAN         ALGO         
Fairbanks              FAIR         
Goldstone              GOLD         
Hartebeesthoek         HART         
Kokee Park             KOKB         271 -> 277
Madrid                 MADR         273
Penticton, CAN         DRAO
Prince Albert, CAN     PRAL
Santiago               SANT         
St. Johns, CAN         STJO
Canbera                CANB        
Tromsoe                TROM         
Wettzell               WETT        
Yarragadee             YAR1
Yellowknife, CAN       YELL    

    SOLUTION CHARACTERISTICS

Reference frame and orientation
        Nominally ITRF91 at epoch 1992.5, realized by constraining the 
following stations at the IGS coordinates (see IGS message #90): 

     Table 2:  Constrained stations
Station     code    L1p.c.     X(m)        Y(m)       Z(m)       apriori sigmas
Algonquin   ALGO    .192m   918129.616 -4346071.224 4561977.800  .002 .002 .002
Fairbanks   FAIR    .194  -2281621.327 -1453595.775 5756961.976  .02  .02  .02
Tromsoe     TROM   2.551   2102940.451   721569.379 5958192.072  .02  .02  .02
Wettzell    WETT    .078   4075578.683   931852.634 4801569.980  .02  .02  .02
Yarragadee  YAR1    .151  -2389025.331  5043316.830-3078530.926  .02  .02  .02

The remaining stations are considered unknown (with 50 m apriori sigmas). 
Orientation is realized through the above coordinates and the fixed  DUT1
values from NEOS/IERS (Bull. A). 

Constants and models 
- no change, see the IGS mess. #101 for details -
Estimation strategies
- no change, see the IGS mess. #101 for details -
  ALGO was used as time reference.                           

  Table 3:  Summary of estimated parameters and apriori weighting
  (L3 and P3 undifferenced phase and smoothed pseudorange sigmas of 0.005m and  
.5m were used, > 15 degrees @ 5 min.)

 parameter         model                  apriori weighting (sigmas)
station X,Y,Z      unknown parameters     50m (fixed stations .002-.02m)
pole  x,y            "       "            3m; (DUT1 fixed)
trop. zen. delay     "       "            0.2m
trop. bias         random walk            .01m/sqrt(1hour)
satellite states   unknown parameters     1km; .005m/s
rad. press Gx,Gz     "       "            25%
rad. press Gy        "       "            2.0 10e-9 m/s^2
initial real cy amb. "       "            300000km
station clocks     white noise            1s
satellite clocks     "     "              1ms and .1ms for Block I and II,resp.

       Aposterioi variance factors typically are between 0.5 and 1.0 (noise 
about 3mm and 200mm for phase and smoothed pseudorange observations, resp.). 
Due to data quality for the AS days the results for the corresponding 
days (with AS turned on) are not included here. 

   SUMMARY OF CANADIAN EMR SOLUTION 

1. Analysis centre    : Geodetic Survey Division (GSD), SMRSS , EMR
2. Solution identifier:  Submission 921002
3. Software used      :  GIPSY/OASIS II (UNIX )
4. Definition of Terrestrial frame:
   origin             : Nominally ITRF91
   orientation        :    "        "
   reference epoch    : 1992.5
   velocity of light  : 299792458 m/s
   GM                 : 389600.4414 km^3/s^5
   gravity model      : GEMT3( 8,8) +C21+S21
   permanent tide corr: None
   ocean loading      : Pagiatakis, global model
5. Adjusted parameters:
   undifferenced phase and smoothed pseudorange data  > 15 degrees @ 5 min.
   single day (24h) arc with 6 IC and 3 rad. parameters per satellite (19 
   satellites, PRN 27 included)
   tropospheric zenith delay corr. parameter augmented with random walk stoch. 
   process
   initial phase ambiguity parameters (one for each satellite station pass or 
   initial phase)
   station positions X,Y,Z, up to 17 stations, ALGO constrained at 2mm, FAIR, 
   TROM, WETT and YAR1 at 2cm sigmas.
   x and y pole position once a day (DUT1 fixed; x,y apriori sigma=3m)
   station clock biases once per each epoch/station (except for ALGO h. maser
   which provides the time reference) with sigma 1 s
   satellite clock biases once per each epoch/satellite with 1ms or .1ms sigma

Pole solution for non AS days

MJD      date          x(")      y(")   DUT1(s)   xsig     ysig    utsig   xyc

48892.5  9/27/92                 AS on
48893.5  9/28/92                 AS on
48894.5  9/29/92     .05337    .50649   .28846   .00053   .00032    0      0
48895.5  9/30/92     .05556    .50498   .28632   .00048   .00029    0      0
48896.5 10/01/92     .05793    .50414   .28447   .00048   .00029    0      0
48897.5 10/02/92     .05996    .50460   .28248   .00048   .00029    0      0
48898.5 10/03/92                 AS on

Products generated:

The following products are generated and uploaded into CDDIS @ NASA/GSFC

EMR06647.EPH        precise GPS ephemeris for week # 664 in sp3 NGS format

EMR06647.ERP        pole x y solutions for week# 664
 
EMR06647.SUM        name of this text file

remarks on EMR's products:
1. only days with no AS included
2. ALGO hydrogen maser used as a time reference. In the sp3 EPH file sat.
   epochs with no reference (e.g. ALGO not observing a satellite) have a value 
   of 99999. microseconds. 
   ALGO clock error was about -0.45 microsec w.r.t. GPS time during this period.
3. ephemeris refers to the mass centre of SV

==============================================================================
From:    Yehuda Bock
Subject: SIO analysis report
         -------------------

SIO PGGA/GARNER Analysis Center Results (11 Oct. 1992)

Yehuda Bock, Peng Fang and Keith Stark

This week we include the following new information:
                                  
Polar motion results for 26 Sept. to 2 Oct.

Notes:

(1) AS effects polar motion estimates on 26-27 Sept.
(2) Coordinates/Reference Frame used for tracking stations described 
in results of 24 Sept. 1992

* MIT_TO_IERS: Run on 1992/10/11 13:40
* Input file : pmu101192.mit
 48780.5  -0.15613  0.32205 -0.519883  0.00021 0.00021 0.000000 1.96  0.109  0.000  0.000   21  16 0
 48781.5  -0.15372  0.32385 -0.522617  0.00027 0.00025 0.000000 1.46  0.046  0.000  0.000   21  17 0
 48782.5  -0.15455  0.32543 -0.525143  0.00026 0.00023 0.000000 1.29  0.117  0.000  0.000   21  17 0
 48783.5  -0.15467  0.32866 -0.527309  0.00020 0.00020 0.000000 1.81 -0.010  0.000  0.000   21  17 0
 48784.5  -0.15518  0.33080 -0.529055  0.00027 0.00024 0.000000 1.41  0.080  0.000  0.000   22  17 0
 48785.5  -0.15367  0.33296 -0.530225  0.00023 0.00022 0.000000 1.43  0.000  0.000  0.000   22  17 0
 48786.5  -0.15379  0.33598 -0.531264  0.00023 0.00022 0.000000 1.71 -0.024  0.000  0.000   21  17 0
 48787.5  -0.15227  0.33915 -0.532088  0.00037 0.00033 0.000000 1.61 -0.062  0.000  0.000   17  17 0
 48788.5  -0.15204  0.34224 -0.532830  0.00020 0.00022 0.000000 1.49 -0.011  0.000  0.000   21  17 0
 48789.5  -0.15227  0.34537 -0.533614  0.00024 0.00025 0.000000 1.36 -0.040  0.000  0.000   20  17 0
 48790.5  -0.15178  0.34806 -0.534539  0.00025 0.00025 0.000000 1.74 -0.044  0.000  0.000   21  17 0
 48791.5  -0.15268  0.35123 -0.535654  0.00023 0.00024 0.000000 1.81  0.109  0.000  0.000   20  17 0
 48792.5  -0.15185  0.35393 -0.536981  0.00020 0.00019 0.000000 2.28  0.060  0.000  0.000   20  17 0
 48793.5  -0.15265  0.35656 -0.539967  0.00018 0.00019 0.000000 1.59  0.011  0.000  0.000   20  17 0
 48794.5  -0.15107  0.35867 -0.541918  0.00021 0.00021 0.000000 1.37  0.000  0.000  0.000   23  17 0
 48795.5  -0.15069  0.36003 -0.543939  0.00019 0.00020 0.000000 1.93  0.023  0.000  0.000   24  17 0
 48796.5  -0.15002  0.36293 -0.545936  0.00017 0.00018 0.000000 1.61  0.099  0.000  0.000   24  17 0
 48797.5  -0.14923  0.36463 -0.547805  0.00020 0.00023 0.000000 1.90  0.062  0.000  0.000   23  17 0
 48798.5  -0.14700  0.36705 -0.549454  0.00026 0.00025 0.000000 1.40  0.121  0.000  0.000   21  17 0
 48799.5  -0.14700  0.37016 -0.551219  0.00027 0.00028 0.000000 1.34  0.146  0.000  0.000   21  17 0
 48800.5  -0.14457  0.37288 -0.552509  0.00024 0.00024 0.000000 1.34  0.085  0.000  0.000   22  17 0
 48801.5  -0.14404  0.37427 -0.553393  0.00027 0.00028 0.000000 1.18  0.161  0.000  0.000   26  17 0
 48802.5  -0.14297  0.37794 -0.554140  0.00024 0.00027 0.000000 1.40  0.158  0.000  0.000   22  17 0
 48803.5  -0.14154  0.38093 -0.555153  0.00020 0.00025 0.000000 1.89  0.119  0.000  0.000   21  17 0
 48804.5  -0.14111  0.38215  0.443530  0.00016 0.00017 0.000000 2.22  0.129  0.000  0.000   23  17 0
 48805.5  -0.13907  0.38531  0.441782  0.00018 0.00021 0.000000 1.98  0.083  0.000  0.000   22  17 0
 48806.5  -0.13790  0.38707  0.439604  0.00020 0.00023 0.000000 1.53  0.133  0.000  0.000   22  17 0
 48807.5  -0.13686  0.39027  0.437134  0.00021 0.00024 0.000000 1.76  0.096  0.000  0.000   23  16 0
 48808.5  -0.13477  0.39214  0.434606  0.00018 0.00020 0.000000 1.80  0.038  0.000  0.000   24  16 0
 48809.5  -0.13430  0.39393  0.432253  0.00015 0.00017 0.000000 1.30  0.135  0.000  0.000   26  16 0
 48810.5  -0.13189  0.39617  0.430247  0.00017 0.00018 0.000000 1.44  0.057  0.000  0.000   27  16 0
 48811.5  -0.13039  0.39882  0.428660  0.00014 0.00016 0.000000 1.52  0.095  0.000  0.000   27  17 0
 48812.5  -0.12982  0.39996  0.427483  0.00015 0.00018 0.000000 1.84  0.142  0.000  0.000   26  17 0
 48813.5  -0.12806  0.40230  0.427699  0.00021 0.00025 0.000000 2.91  0.277  0.000  0.000   26  16 0
 48814.5  -0.12640  0.40553  0.427271  0.00014 0.00016 0.000000 1.48  0.192  0.000  0.000   28  17 0
 48815.5  -0.12614  0.40898  0.426947  0.00015 0.00020 0.000000 1.57  0.185  0.000  0.000   27  17 0
 48816.5  -0.12504  0.41105  0.426598  0.00014 0.00016 0.000000 1.89  0.164  0.000  0.000   29  17 0
 48817.5  -0.12520  0.41152  0.426111  0.00017 0.00020 0.000000 1.81  0.162  0.000  0.000   28  17 0
 48818.5  -0.12414  0.41383  0.425416  0.00016 0.00017 0.000000 1.74  0.106  0.000  0.000   27  17 0
 48819.5  -0.12285  0.41555  0.424472  0.00017 0.00019 0.000000 1.88  0.113  0.000  0.000   25  17 0
 48820.5  -0.12000  0.41761  0.423296  0.00020 0.00020 0.000000 1.88  0.166  0.000  0.000   24  17 0
 48821.5  -0.11824  0.41878  0.421397  0.00027 0.00028 0.000000 1.96  0.159  0.000  0.000   23  17 0
 48822.5  -0.11542  0.42145  0.419817  0.00021 0.00020 0.000000 1.95  0.137  0.000  0.000   25  17 0
 48823.5  -0.11306  0.42399  0.418199  0.00024 0.00025 0.000000 2.10  0.073  0.000  0.000   24  17 0
 48824.5  -0.10958  0.42682  0.416635  0.00017 0.00019 0.000000 1.95  0.100  0.000  0.000   25  18 0
 48826.5  -0.10646  0.43135  0.414004  0.00013 0.00014 0.000000 1.89  0.062  0.000  0.000   29  18 0
 48827.5  -0.10441  0.43306  0.413023  0.00014 0.00014 0.000000 1.75  0.082  0.000  0.000   27  18 0
 48828.5  -0.10140  0.43504  0.411183  0.00016 0.00017 0.000000 1.73  0.019  0.000  0.000   25  18 0
 48829.5  -0.09985  0.43682  0.410301  0.00016 0.00017 0.000000 1.46  0.045  0.000  0.000   25  18 0
 48830.5  -0.09737  0.43913  0.409336  0.00013 0.00014 0.000000 2.02  0.014  0.000  0.000   26  18 0
 48831.5  -0.09565  0.44142  0.408090  0.00014 0.00015 0.000000 2.03  0.026  0.000  0.000   27  18 0
 48832.5  -0.09406  0.44288  0.406405  0.00016 0.00018 0.000000 2.70  0.119  0.000  0.000   26  18 0
 48833.5  -0.09254  0.44531  0.404186  0.00018 0.00016 0.000000 1.94  0.215  0.000  0.000   26  18 0
 48834.5  -0.08947  0.44698  0.401566  0.00012 0.00013 0.000000 2.10  0.074  0.000  0.000   27  18 0
 48835.5  -0.08915  0.44907  0.398750  0.00046 0.00051 0.000000 1.71  0.179  0.000  0.000   27  18 0
 48836.5  -0.08731  0.45118  0.396020  0.00039 0.00053 0.000000 1.49  0.066  0.000  0.000   27  10 0
 48837.5  -0.08407  0.45239  0.393620  0.00021 0.00025 0.000000 1.68 -0.011  0.000  0.000   29  18 0
 48838.5  -0.08178  0.45588  0.391677  0.00012 0.00012 0.000000 1.59  0.065  0.000  0.000   28  18 0
 48839.5  -0.08006  0.45774  0.390212  0.00012 0.00013 0.000000 1.80  0.114  0.000  0.000   29  18 0
 48840.5  -0.07784  0.45927  0.389148  0.00012 0.00012 0.000000 2.08  0.058  0.000  0.000   29  18 0
 48841.5  -0.07614  0.46140  0.388356  0.00013 0.00014 0.000000 2.04  0.061  0.000  0.000   27  18 0
 48842.5  -0.07490  0.46395  0.387691  0.00047 0.00046 0.000000 1.31  0.259  0.000  0.000   28  17 0
 48843.5  -0.07253  0.46654  0.386999  0.00036 0.00041 0.000000 1.40  0.247  0.000  0.000   26   8 0
 48844.5  -0.07071  0.46924  0.386177  0.00032 0.00027 0.000000 1.54  0.179  0.000  0.000   27  18 0
 48845.5  -0.06831  0.47233  0.385147  0.00017 0.00021 0.000000 1.75  0.172  0.000  0.000   27  18 0
 48846.5  -0.06668  0.47411  0.383853  0.00014 0.00014 0.000000 1.89  0.085  0.000  0.000   27  18 0
 48847.5  -0.06460  0.47653  0.382298  0.00013 0.00013 0.000000 2.09  0.059  0.000  0.000   28  18 0
 48848.5  -0.06236  0.47802  0.379500  0.00013 0.00013 0.000000 1.69  0.069  0.000  0.000   28  18 0
 48849.5  -0.05936  0.47947  0.377556  0.00032 0.00037 0.000000 1.22  0.237  0.000  0.000   28  13 0
 48850.5  -0.05897  0.48090  0.375550  0.00039 0.00042 0.000000 1.46  0.336  0.000  0.000   27   8 0
 48851.5  -0.05523  0.48289  0.373590  0.00020 0.00022 0.000000 2.33  0.028  0.000  0.000   28  18 0
 48852.5  -0.05191  0.48457  0.371746  0.00014 0.00014 0.000000 1.59  0.060  0.000  0.000   27  18 0
 48853.5  -0.04896  0.48645  0.370076  0.00013 0.00014 0.000000 1.82  0.017  0.000  0.000   26  18 0
 48854.5  -0.04626  0.48815  0.368154  0.00016 0.00018 0.000000 1.46  0.031  0.000  0.000   26  15 0
 48855.5  -0.04266  0.48952  0.366832  0.00015 0.00016 0.000000 1.74  0.012  0.000  0.000   26  18 0
 48856.5  -0.03980  0.48984  0.365638  0.00072 0.00065 0.000000 1.09  0.452  0.000  0.000   24   8 0
 48857.5  -0.03521  0.49058  0.364420  0.00033 0.00039 0.000000 1.80  0.168  0.000  0.000   25   8 0
 48858.5  -0.03489  0.49326  0.362988  0.00026 0.00027 0.000000 1.97  0.030  0.000  0.000   23  18 0
 48859.5  -0.03077  0.49355  0.361149  0.00014 0.00015 0.000000 2.01  0.013  0.000  0.000   25  18 0
 48860.5  -0.02731  0.49524  0.358770  0.00013 0.00013 0.000000 2.14  0.043  0.000  0.000   25  18 0
 48861.5  -0.02436  0.49692  0.355865  0.00012 0.00013 0.000000 2.06  0.057  0.000  0.000   24  18 0
 48862.5  -0.02111  0.49866  0.352588  0.00013 0.00013 0.000000 2.17  0.043  0.000  0.000   24  18 0
 48863.5  -0.01849  0.50018  0.338105  0.00012 0.00013 0.000000 2.65  0.048  0.000  0.000   24  18 0
 48864.5  -0.01598  0.50201  0.335804  0.00014 0.00015 0.000000 2.54  0.034  0.000  0.000   25  18 0
 48865.5  -0.01287  0.50382  0.333721  0.00013 0.00014 0.000000 2.33  0.064  0.000  0.000   24  18 0
 48866.5  -0.01087  0.50472  0.331844  0.00013 0.00013 0.000000 2.05  0.033  0.000  0.000   25  18 0
 48867.5  -0.00885  0.50438  0.330108  0.00012 0.00013 0.000000 1.86  0.039  0.000  0.000   25  18 0
 48868.5  -0.00634  0.50419  0.328431  0.00017 0.00020 0.000000 2.06 -0.015  0.000  0.000   23  18 0
 48869.5  -0.00406  0.50364  0.336537  0.00013 0.00014 0.000000 2.02  0.055  0.000  0.000   23  18 0
 48870.5  -0.00220  0.50326  0.335385  0.00017 0.00018 0.000000 1.80  0.062  0.000  0.000   24  18 0
 48871.5   0.00049  0.50501  0.334140  0.00016 0.00016 0.000000 2.24  0.055  0.000  0.000   24  18 0
 48872.5   0.00297  0.50632  0.332702  0.00013 0.00013 0.000000 1.91  0.033  0.000  0.000   25  18 0
 48873.5   0.00528  0.50675  0.331004  0.00013 0.00014 0.000000 1.89  0.021  0.000  0.000   25  18 0
 48874.5   0.00791  0.50757  0.329028  0.00013 0.00014 0.000000 1.82  0.152  0.000  0.000   25  18 0
 48875.5   0.01017  0.50731  0.326801  0.00014 0.00015 0.000000 2.44  0.173  0.000  0.000   25  18 0
 48876.5   0.01201  0.50808  0.324378  0.00019 0.00017 0.000000 1.75  0.153  0.000  0.000   23  18 0
 48877.5   0.01191  0.50898  0.324013  0.00055 0.00053 0.000000 1.62  0.402  0.000  0.000   23  18 0
 48878.5   0.01692  0.50772  0.310577  0.00070 0.00066 0.000000 1.05  0.381  0.000  0.000   24   7 0
 48879.5   0.01704  0.50727  0.308702  0.00047 0.00052 0.000000 1.47  0.302  0.000  0.000   23  18 0
 48880.5   0.02093  0.50943  0.306765  0.00030 0.00024 0.000000 1.33  0.241  0.000  0.000   22  18 0
 48881.5   0.02418  0.50986  0.315922  0.00024 0.00021 0.000000 1.88  0.170  0.000  0.000   23  18 0
 48882.5   0.02751  0.50973  0.314365  0.00021 0.00019 0.000000 2.27  0.054  0.000  0.000   22  18 0
 48883.5   0.02913  0.51001  0.312953  0.00025 0.00021 0.000000 2.14  0.216  0.000  0.000   23  18 0
 48884.5   0.03140  0.50945  0.311800  0.00078 0.00067 0.000000 1.17  0.402  0.000  0.000   22  18 0
 48886.5   0.03533  0.50699  0.308697  0.00070 0.00075 0.000000 1.59  0.363  0.000  0.000   21  18 0
 48887.5   0.03750  0.50860  0.306537  0.00025 0.00021 0.000000 1.85  0.140  0.000  0.000   24  18 0
 48888.5   0.03923  0.50859  0.303852  0.00023 0.00019 0.000000 2.53  0.284  0.000  0.000   24  18 0
 48889.5   0.04154  0.50907  0.300712  0.00022 0.00020 0.000000 2.84  0.065  0.000  0.000   23  18 0
 48890.5   0.04347  0.50960  0.297304  0.00025 0.00020 0.000000 2.46  0.094  0.000  0.000   25  18 0
 48891.5   0.04807  0.50908  0.294636  0.00079 0.00068 0.000000 2.00  0.454  0.000  0.000   25   7 0
 48892.5   0.05008  0.50938  0.291634  0.00097 0.00078 0.000000 1.36  0.525  0.000  0.000   24   7 0
 48893.5   0.05028  0.50874  0.289091  0.00033 0.00034 0.000000 1.72  0.139  0.000  0.000   24  19 0
 48894.5   0.05329  0.50739  0.287040  0.00020 0.00016 0.000000 2.58  0.149  0.000  0.000   26  19 0
 48895.5   0.05625  0.50663  0.285410  0.00017 0.00015 0.000000 2.74  0.088  0.000  0.000   26  19 0
 48896.5   0.05831  0.50606  0.284047  0.00018 0.00016 0.000000 2.55  0.056  0.000  0.000   26  19 0
 48897.5   0.06044  0.50586  0.282777  0.00016 0.00014 0.000000 3.09  0.089  0.000  0.000   26  19 0

NOTES: UT1 not estimated.  Value given is apriori used in analysis.  The rms is the square root of chi**2
per degree of freedom in our solution.  It nominally should be 1.0.  st and sv are numbers of stations
and satellites in solution.

==============================================================================
From:    Sandor Frey
Subject: ESA/ESOC analysis report

-------------------------
ANALYSIS CENTRE: ESA/ESOC
-------------------------

OUTLINE OF THE ESTIMATION OF GPS-ORBITS AND EARTH ROTATION PARAMETERS AT THE
ESOC PROCESSING CENTER FOR IGS

J.M.Dow, S.Casotto, J.Feltens, S.Frey, C.Garcia-Martinez, T.Martin-Mur

Description of analysis for period 1992 September 27 - October 03

1. SOFTWARE USED:   GPSOBS/BAHN5

2. MODELS USED AND PARAMETERS ESTIMATED/FIXED

   For a description of models and  parameters we are using ==> see IGS-Mail  51
   For updates of the models and parameters used =============> see IGS-Mail 114

   Satellite SV-27 has been included into processing since day 275 (October 1st)

3. GROUND STATIONS (if being estimated, one position (X,Y,Z) every day):

      The following table gives an overview over the ground stations,  that have
      been included into the GPS-data processing at ESOC. Except where otherwise
      noted ("remarks"), corrections are taken from IGS Mail No. 90  -  IGS site
      information and coordinates,updated version of IERS/IGS Tables in IGS Mail
      No. 65  -  (Boucher and Altamimi).
      __________________________________________________________________________
                          |             |    |    GPS WEEK 664     |
                          |             |    | 2  2  2  2  2  2  2 |
                          |             |    | 7  7  7  7  7  7  7 |
              SITE        |   COUNTRY   |CODE| 1  2  3  4  5  6  7 |  REMARKS
      --------------------|-------------|----|---------------------|------------
        Algonquin         | Canada      |ALGO| F  F  F  F  F  F  F |
        CANB/Tidbinbilla  | Australia   |TIDB| e  e  e --- e  e  e |
        Penticton         | Canada      |DRAO| F  F  F  F  F  F  F |
        Fairbanks         | U.S.A/Alaska|FAIR| F  F  F  F  F  F  F |
        Goldstone         | U.S.A.      |GOLD| F  F  F  F  F  F  F |
        Hartebeesthoek    | South Africa|HART| F  F  F  F  F  F  F |
        Herstmonceux      | U.K.        |HERS| F  F  F  F  F  F -- |
        Kokee Park        | U.S.A/Hawaii|KOKB| --------------------|
        Kourou      (ESA) | French Guyan|KOUR| ------------------- | own estim.
        Madrid            | Spain       |MADR| F  F  F  F  F  F  F |
        Maspalomas  (ESA) | Spain/Can.Is|MASP| e  e  e  e  e  e  e |
        Matera            | Italy       |MATE| F  F  F  F  F  F  F |
        McMurdo           | Antarctica  |MCMU| e  e  e  e  e  e  e |
        Metsahovi         | Finland     |METS| F  F  F  F  F  F  F |
        Ny Alesund/Spitzb.| Norway      |NYAL| e ------ e  e  e  e |
        Onsala            | Sweden      |ONSA| F  F  F  F  F  F  F |
        Pamate/Tahiti     | France      |PAMA| e  e  e  e  e  e  e |
        Santiago          | Chile       |SANT| F  F  F  F  F  F  F |
        St.John's, NF     | Canada      |STJO| e  e  e  e  e  e  e |
        Tai-Shi           | Taiwan      |TAIW| ----- e  e  e  e -- |
        Usuda             | Japan       |USUD| e  e  e  e  e  e  e |
        Wettzell          | Germany     |WETT| F  F  F  F  F  F  F |
        Yaragadee         | Australia   |YAR1| F  F  F  F  F  F  F |
        Yellowknife       | Canada      |YELL| F  F --- F  F  F  F |

      with: "F" ... coordinates of ground station kept fixed,
            "e" ... coordinates of ground station estimated,
            "-" ... ground station not included on that day.

4. PRODUCTS GENERATED

   The following products are generated and stored in CDDIS at NASA/GSFC:

   ESA0664*.EPH   - Precise GPS orbits, * = 0 for Sunday ,..., 6 for Saturday
   ESA06647.ERP   - Earth rotation results for week beginning 1992 September 27
   ESA06647.SUM   - The name of this text file

==============================================================================
From:     L. Daniel (IGN )
Subject:  IGS data holdings
          -----------------

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of 12-OCT-1992 11:29:49.56)                   
                                                                      
        GPS WEEK #663    20/9/1992 to 26/9/1992   days 264-270        

                              2    2    2    2    2    2    2         
                              6    6    6    6    6    6    7         
Center           Type         4    5    6    7    8    9    0         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                                                                      
EMR              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
ESA              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
JPL              ERP          X    X    X    X    X    X    X         
                 SP1          X    X    X    X    X    X    X         
                 SP3          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                             PRODUCT FILES                            
                    (as of  2-OCT-1992 10:25:22.79)                   
                                                                      
        GPS WEEK #662    13/9/1992 to 19/9/1992   days 257-263        

                              2    2    2    2    2    2    2         
                              5    5    5    6    6    6    6         
Center           Type         7    8    9    0    1    2    3         
---------------  ----------  ---  ---  ---  ---  ---  ---  ---        
COD              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                                                                      
EMR              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
ESA              EPH          X    X    X    X    X    X    X         
                 ERP          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
JPL              ERP          X    X    X    X    X    X    X         
                 SP1          X    X    X    X    X    X    X         
                 SP3          X    X    X    X    X    X    X         
                 SUM          X    X    X    X    X    X    X         
                                                                      
SIO              EPH          X    X    X    X    X    X    X         

                     IGN DATA CENTER WEEKLY STATUS                    
                           CORE NETWORK DATA                          
                    (as of  8-OCT-1992 09:27:07.46)                   
                                                                      
        GPS WEEK #664    27/9/1992 to 3/10/1992   days 271-277        

                                           2   2   2   2   2   2   2  
                                           7   7   7   7   7   7   7  
Site name            Acr. Receiver         1   2   3   4   5   6   7  
-------------------- ---- --------------- --- --- --- --- --- --- --- 
ALBERT HEAD          ALBH ROGUE            X   X   X   X   X   X   X  
ALGONQUIN            ALGO ROGUE            X   X   X   X   X   X   X  
CANBERRA             CANB ROGUE            X   X   X   X   X   X   X  
FAIRBANKS            FAIR ROGUE            X   X   X   X   X   X   X  
GOLDSTONE            GOLD ROGUE            X   X   X   X   X   X   X  
GRAZ                 GRAA ASHTECH          X   X   X   X   X   X   X  
GRAZ                 GRAZ ROGUE            X   X   X   X   X   X   X  
HARTBEESTHOEK        HART ROGUE            X   X   X   X   X   X   X  
HERSTMONCEUX         HERS ROGUE            X   X   X   X   X   X   X  
HOBART               HOBA MINIMAC 2816     X   X   X   X   X   X   X  
KOOTWIJK             KOSG ROGUE            X   X   X   X   X   X   X  
MADRID-ROBLEDO       MADR ROGUE            X   X   X   X   X   X   X  
MASPALOMAS           MASP ROGUE            X   X   X   X   X   X   X  
MATERA               MATE ROGUE            X   X   X   X   X   X   X  
MC MURDO             MCMU ROGUE            X   X   X   X   X   X   X  
METSAHOVI            METS ROGUE            X   X   X   X   X   X   X  
MOJAVE               MOJ1 MINIMAC 2816     X   X   X   X   -   -   -  
NY-ALESUND           NYAL ROGUE            X   X   X   X   X   X   X  
ONSALA-RAO           ONSA ROGUE            X   X   X   X   X   X   X  
PAMATAI              PAMA ROGUE            X   X   X   X   X   X   X  
PASADENA             JPLM ROGUE            X   X   X   X   X   X   X  
PENTICTON            DRAO ROGUE            X   X   X   X   X   X   X  
SAINT JOHN'S         STJO ROGUE            X   X   X   X   X   X   X  
SANTIAGO             SANT ROGUE            X   X   X   X   X   X   X  
TAIPEI               TAIW MINIROGUE        X   X   X   X   X   X   X  
TOWNSVILLE           TOWN TRIMBLE SST      X   X   X   X   X   X   X  
TROMSOE              TROM ROGUE            X   X   X   X   X   X   X  
TSUKUBA              TSUK MINIMAC 2816     X   X   X   X   X   X   X  
USUDA                USUD ROGUE            X   X   X   X   X   X   X  
WELLINGTON           WELL TRIMBLE SST      X   X   X   X   X   X   X  
WESTFORD             WES1 MINIMAC 2816     -   X   X   X   X   X   X  
WETTZELL             WETT ROGUE            X   X   X   X   X   X   X  
YARRAGADEE           YAR1 ROGUE            X   X   X   X   X   X   X  
YELLOWKNIFE          YELL MINIROGUE        X   X   X   X   X   X   X  
ZIMMERWALD           ZIMA ASHTECH          -   -   -   X   X   X   X  
ZIMMERWALD           ZIMM TRIMBLE SST      -   X   X   X   X   X   X  
--------------------                                                  
                  36