[IGSREPORT-624] ESA07237.SUM

[C.GARCIA]

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IGS Electronic Report     26-NOV-1993 21:23:29       Message Number 624
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From: C.GARCIA
Subj: ESA07237.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.J.Martin-Mur, C.Garcia-Martinez

 Description of analysis for period 1993 Nov 14 - Nov 20
                                                        (week 0723)
 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: - With the beginning of this week 0723, we include tracking
               sites Fortaleza (FORT) and Taipei (TAIW) into our routine
               IGS processing.

             - Satellite SV-09/PRN13 was scheduled to be unusable on
               day 308 beginning 0000 UTC until day 349 at 0000 due to
               maintenance. The orbit of this satellite is affected
               the whole week by periods of several hours without
               observations.

 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  GOLD  KOKB  MASP  SANT  TROM  YAR1  |f |e |t
 0723___| FAIR  HART  KOUR  MATE  TAIW  USUD  YELL |i |s |o
    |DAY|  FORT  KIRU  MADR  PERT  TIDB  WETT      |x.|t.|t.
 ---|---|------------------------------------------|--|--|--
    |318| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |319| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |320| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |321| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |322| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |323| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20
    |324| FFe   FFe   FeF   eee   FeF   FeF   FF   |12| 8|20

    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 <CENTIMETER>

  \DAY|  318   319   320   321   322   323   324
   \  |
    \ |
  SAT\|
  ----|-------------------------------------------
   02 |   77    48    42    74    51    37    55
   03 |   42    65    85    48    43    62    31
   12 |   52    55    32    55    31    57    56
   13 |  176   160   470   595    72    89   109
   14 |   31    63    52    39    29    21    67
   15 |   83    45    60    35    27    29    83
   16 |   65    50    37    30    25    33    46
   17 |   86    42    31    44    28    27    25
   18 |   50    47    55    44    34    58    43
   19 |   42    61    62    71    45    58    82
   20 |   90    52    69    45    50    68    42
   21 |   40    28    25    72    20    43    48
   22 |  180    66   118   117    82   127   110
   23 |   90    17    34    26    13    21    18
   24 |   66   103    27    37    36    60    58
   25 |   60    51    59    87    62    65    41
   26 |   50    67    49    46    44    58    41
   27 |   56    66    72    74    69    57    56
   28 |  320    71    61    68   118    77    55
   01 |   42    47    46    82    29    62    67
   29 |   58    48    46    41    29    46    42
   31 |   67    75    48    90    99    83    55
   07 |   84   131    71    86   106    65    79
   09 |   53    75    53   121   116    96   125
   05 |   60    42    49    61    65    50    56

 6. PRODUCTS GENERATED:

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

  ESA0723*.EPH - Precise GPS orbits, *=0 for Sunday,..., 6 for Saturday
  ESA07237.ERP - Earth rotation results for week 0723 (including DUT1R)
  ESA07237.SUM - This summary file

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