Subject: [IGSREPORT-494] ESA07137.SUM
From: J. Feltens
Date: 17 SEP 1993 08:54:11

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IGS Electronic Report     17-SEP-1993 08:54:11       Message Number 494
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From: J. Feltens 
Subj: ESA07137.SUM
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 -------------------------
 ANALYSIS CENTRE: ESA/ESOC
 -------------------------

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

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

 Description of analysis for period 1993 Sep 05 - Sep 11
                                                        (week 0713)
 1. SOFTWARE USED:   GPSOBS/BAHN-Version 5

 2. MODELS USED AND PARAMETERS ESTIMATED/FIXED:

  For a description of models and parameters used ==> see IGS - Mail  51
  For updates of the models and parameters used   ==> see IGS - Mail 114 and
                                                      see IGS - Rep. 224,277

 3. REMARKS: SV-29/PRN29 has been excluded from processing on days 248 and 249
             (Sept 5 and 6 1993), because of lack of observations. For day 250
             only a very few observations were available  for SV-29/PRN29,  so
             its orbit is weakly determined on that day.
                  RCM4 has been excluded in our processing from day 250 on for
             the rest of the week, because of RCM4-data problems.

 4. GROUND STATIONS: Boucher and Altamimi, IGS workshop Berne 24-27 March'93
                     IGS/IERS station coordinates in the ITRF91 at 1992.6
 ___________________________________________________________
 GPSweek|ALGO  HART  KOUR  MATE  SANT  USUD  YELL  |f |e |t
 0713___| FAIR  KIRU  MADR  MCMU  TIDB  WETT       |i |s |o
    |DAY|  GOLD  KOKB  MASP  RCM4  TROM  YAR1      |x.|t.|t.
 ---|---|------------------------------------------|--|--|--
    |248| FFF   FeF   eFe   eee   FFF   eFF   F    |12| 7|19
    |249| FFF   FeF   eFe   eee   FFF   eFF   F    |12| 7|19
    |250| FFF   FeF   eFe   ee-   FFF   eFF   F    |12| 6|18
    |251| FFF   FeF   eFe   ee-   FFF   eFF   F    |12| 6|18
    |252| FFF   FeF   eFe   ee-   FFF   eFF   F    |12| 6|18
    |253| FFF   FeF   eFe   ee-   FFF   eFF   F    |12| 6|18
    |254| FFF   FeF   eFe   ee-   FFF   eFF   F    |12| 6|18

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

 5. ORBIT FIT MINUS EXTRAPOLATION FROM PREVIOUS DAY, RMS IN <METER>

  \DAY|  248   249   250   251   252   253   254
   \  |
    \ |
  SAT\|
  ----|-------------------------------------------
   02 |  0.5   0.7   0.5   1.0   0.4   0.6   0.5
   03 |  0.4   0.2   0.3   0.3   0.5   0.3   0.3
   12 |  0.2   0.3   0.3   0.5   0.4   0.6   0.6
   13 |  0.3   0.8   0.3   0.3   0.4   0.6   0.4
   14 |  2.3   0.8   0.5   1.4   0.9   1.7   0.6
   15 |  0.3   1.0   0.5   0.4   0.6   1.1   0.8
   16 |  0.7   2.0   0.7   0.8   0.6   2.1   1.1
   17 |  0.8   0.3   0.4   0.8   0.4   0.5   0.6
   18 |  0.4   0.8   0.4   0.4   0.5   0.6   0.5
   19 |  0.7   0.4   0.5   0.7   0.5   0.4   0.6
   20 |  1.3   0.5   0.7   0.7   0.6   1.2   0.5
   21 |  1.4   1.2   2.1   0.8   0.8   1.4   1.6
   22 |  0.9   1.1   0.9   0.7   1.1   0.6   0.8
   23 |  0.7   2.0   1.0   0.4   0.6   1.3   1.0
   24 |  0.3   1.3   0.8   1.0   0.8   1.2   0.3
   25 |  0.5   0.6   0.5   0.9   0.5   1.0   0.6
   26 |  0.9   0.5   1.1   0.7   0.3   0.5   0.7
   27 |  0.5   0.3   0.5   0.5   1.1   0.5   0.8
   28 |  1.5   0.8   1.1   0.5   0.8   0.7   0.8
   29 |  ---   ---   ---   0.4   0.7   1.0   1.1
   01 |  0.7   0.6   0.5   0.9   1.8   0.6   0.7
   31 |  0.8   1.2   0.8   1.0   0.5   0.7   0.8
   07 |  0.8   1.0   0.5   1.4   0.8   0.6   1.1
   09 |  0.3   0.4   0.4   0.5   0.4   0.7   1.1

 6. PRODUCTS GENERATED:

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

  ESA0713*.EPH - Precise GPS orbits, *=0 for Sunday,..., 6 for Saturday
  ESA07137.ERP - Earth rotation results for week 0713 (including DUT1)
  ESA07137.SUM - This summary file

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