Subject: [IGSREPORT-430] ESA07077.SUM
From: J. Feltens
Date: 11 AUG 1993 18:15:38

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IGS Electronic Report     11-AUG-1993 18:15:38       Message Number 430
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From: J. Feltens 
Subj: ESA07077.SUM
------------------

 -------------------------
 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.Martin-Mur, C.Garcia-Martinez

 Description of analysis for period 1993 Jul 25 - Jul 31
                                                        (week 0707)
 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: During a careful check  of our ERP-files we have found, that UT1R
             must be replaced by UT1, since the ERP-files are  referred to UT1
             instead of UT1-regularized. We have corrected this error and from
             now on you will  find UT1 instead of UT1R in our  weekly ERP- and
             Summary-files.

 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  RCM2  TROM  YAR1  |f |e |t
 0707___| FAIR  KIRU  MADR  MCMU  SANT  USUD  YELL |i |s |o
    |DAY|  GOLD  KOKB  MASP  PAMA  TIDB  WETT      |x.|t.|t.
 ---|---|------------------------------------------|--|--|--
    |206| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19
    |207| FFF   Fe-   eFe   eee   eFF   FeF   FF   |11| 8|19
    |208| FFF   Fe-   eFe   eee   eFF   FeF   FF   |11| 8|19
    |209| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19
    |210| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19
    |211| FFF   FeF   eFe   -e-   eFF   FeF   FF   |12| 6|18
    |212| FFF   FeF   eFe   -e-   eFF   FeF   FF   |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|  206   207   208   209   210   211   212
   \  |
    \ |
  SAT\|
  ----|-------------------------------------------
   01 |  1.0   0.6   2.4   1.5   0.5   0.7   2.2
   02 |  1.2   1.3   1.9   1.2   1.9   2.3   2.4
   03 |  1.5   1.0   2.2   1.2   1.6   1.1   1.8
   12 |  0.8   0.7   1.1   0.7   0.8   0.9   0.9
   13 |  0.8   1.0   0.7   0.6   0.9   0.6   0.6
   14 |  1.0   0.9   1.6   1.7   1.3   1.1   1.0
   15 |  1.6   1.4   1.3   1.1   2.0   1.5   1.4
   16 |  4.2   1.0   1.5   3.4   2.5   1.1   3.1
   17 |  1.2   1.8   3.7   2.9   1.8   1.8   2.5
   18 |  0.9   0.5   0.8   0.4   0.9   0.3   0.8
   19 |  1.2   1.7   0.7   1.7   1.7   0.7   0.9
   20 |  1.4   1.5   1.7   2.6   1.0   2.0   1.3
   21 |  0.9   0.8   0.7   1.0   2.3   3.3   1.2
   22 |  1.6   1.4   1.1   2.4   0.7   1.0   1.1
   23 |  1.8   1.3   1.6   2.0   5.8   2.5   2.0
   24 |  4.3   3.4   2.9   2.6   2.2   2.3   1.0
   25 |  0.8   0.9   1.3   1.9   0.8   1.3   0.9
   26 |  3.0   2.5   1.3   2.5   3.2   1.8   3.1
   27 |  1.0   1.6   0.7   1.2   0.9   0.5   0.9
   28 |  1.5   1.1   1.9   1.5   0.9   1.3   1.3
   29 |  1.4   1.3   0.5   1.1   1.3   0.7   0.7
   31 |  1.7   1.5   0.6   2.1   0.7   0.8   0.7
   07 |  1.1   1.4   0.7   1.1   1.0   1.4   1.3
   09 |  1.0   0.7   1.5   1.0   0.9   0.9   1.1

 6. PRODUCTS GENERATED:

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

  ESA0707*.EPH - Precise GPS orbits, *=0 for Sunday,..., 6 for Saturday
  ESA07077.ERP - Earth rotation results for week 0707 (including DUT1)
  ESA07077.SUM - This summary file

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