[IGSREPORT-480] ESA07127.SUM

[C.Garcia]

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IGS Electronic Report      9-SEP-1993 19:25:07       Message Number 480
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From: C.Garcia
Subj: ESA07127.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 Aug 29 - Sep 04
                                                        (week 0712)
 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:-Manoeuvre of satellite PRN02/SV-13 on day 242 at
             12:39:30. The estimation of the along track delta-v
             is -41.8 mm/sec.

            -Problems with TIDB on day 241 and with PERT on
             day 245. The data were removed from the processing.

            -AS on for satellites PRN17 and PRN24 on day 246,
             and for PRN17 on day 247.

            -No data for the following satellites during several
             hours due to maintenance. See CANSPACE mail,1 Sep 1993.

               PRN12 from 14h(day 244) until 15h(day 245)
               The orbit during this period is only propagated.

               PRN27 from 5h(day 245) until 4h(day 246)
               No orbit improvement on day 245.

               PRN03 from 20h(day 245) until 2h(day 247)
               No orbit improvement on day 246.

               PRN27 from 10h(day 246) until 2h(day 247)
               No orbit improvement on day 247.



 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  RCM4  TROM  YAR1  |f |e |t
 0712___| FAIR  KIRU  MADR  MCMU  SANT  USUD  YELL |i |s |o
    |DAY|  GOLD  KOKB  MASP  PERT  TIDB  WETT      |x.|t.|t.
 ---|---|------------------------------------------|--|--|--
    |241| FFF   FeF   eFe   eee   -FF   FeF   -F   |11| 7|18
    |242| FFF   FeF   eFe   eee   eFF   FeF   FF   |12| 8|20
    |243| FFF   FeF   eFe   eee   eFF   FeF   FF   |12| 8|20
    |244| FFF   FeF   eFe   eee   eFF   FeF   FF   |12| 8|20
    |245| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19
    |246| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19
    |247| FFF   FeF   eFe   ee-   eFF   FeF   FF   |12| 7|19

    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|  241   242   243   244   245   246   247
   \  |
    \ |
  SAT\|
  ----|-------------------------------------------
   02 |  0.8   ***  13.0   0.6   2.0   0.9   0.6
   03 |  0.7   0.6   0.5   0.4   0.3   ---   ---
   12 |  0.4   0.5   0.6   0.3   0.8   0.7   0.3
   13 |  1.8   1.0   1.5   0.4   0.8   0.6   0.4
   14 |  0.8   1.5   0.7   0.4   1.0   1.7   1.4
   15 |  0.5   0.4   0.4   0.7   0.7   0.6   1.3
   16 |  0.9   1.2   1.6   1.0   1.5   1.9   1.1
   17 |  0.8   0.7   1.2   1.2   1.1   0.9   0.4
   18 |  0.6   0.5   0.8   0.4   0.6   0.6   0.7
   19 |  0.6   0.7   0.8   0.9   0.7   0.5   0.6
   20 |  1.4   2.0   0.6   1.0   0.7   1.8   0.6
   21 |  1.4   1.3   2.2   1.1   1.5   0.9   0.5
   22 |  1.5   1.2   1.2   0.9   1.2   1.1   1.3
   23 |  1.7   1.8   2.2   0.8   1.9   0.9   0.6
   24 |  1.1   0.6   2.4   0.4   0.6   0.6   2.1
   25 |  0.8   0.5   0.7   0.8   0.6   0.7   0.8
   26 |  0.8   0.6   0.8   1.3   1.8   0.7   0.4
   27 |  0.7   1.0   0.8   0.4   ---   ---   0.3
   28 |  0.8   0.6   0.3   0.9   0.6   0.8   1.0
   29 |  0.9   0.6   0.6   0.4   0.3   2.7   ---
   01 |  0.7   0.5   0.9   1.2   1.8   0.8   0.5
   31 |  0.6   0.3   0.9   1.0   0.3   0.9   0.7
   07 |  0.9   0.6   1.4   0.9   0.6   1.3   1.1
   09 |  0.3   0.5   0.7   0.4   1.5   0.9   0.4

 6. PRODUCTS GENERATED:

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

  ESA0712*.EPH - Precise GPS orbits, *=0 for Sunday,..., 6 for Saturday
  ESA07127.ERP - Earth rotation results for week 0712 (including DUT1)
  ESA07127.SUM - This summary file

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