Tropical Depression 09S


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.0
 

                                         -------FORECAST-----   ----ARCHER---- 50% cert  95% cert Eyewall   Conf Alpha  Eye
     Date/Time(UTC)     Source   Sensor    Lat     Lon   Vmax      Lat     Lon   radius    radius  radius  Score Score  Prob    .
   20200122 16:45:00  METEOSAT       IR  -21.01  -70.22  35.0   -20.66  -70.49     0.17      0.48   0.10    1.20  9.81 100.0 GIF
   20200122 17:15:00  METEOSAT       IR  -21.10  -70.25  35.0   -20.70  -70.49     0.13      0.38   0.05    1.48 12.58 100.0 GIF
   20200122 17:45:00  METEOSAT       IR  -21.19  -70.29  35.0   -20.66  -70.63     0.18      0.52   0.20    1.14  9.18  49.2 GIF
   20200122 18:15:00  METEOSAT       IR  -21.28  -70.32  35.0   -20.73  -70.75     0.15      0.42   0.05    1.35 11.24  48.3 GIF
   20200122 18:45:00  METEOSAT       IR  -21.37  -70.35  35.0   -20.90  -70.84     0.16      0.44   0.05    1.29 10.70  46.2 GIF
   20200122 19:15:00  METEOSAT       IR  -21.47  -70.39  35.0   -20.97  -70.98     0.19      0.52   0.05    1.13  9.07  46.9 GIF
   20200122 19:45:00  METEOSAT       IR  -21.56  -70.42  35.0   -21.11  -70.90     0.19      0.54   0.30    1.10  8.76  48.1 GIF
   20200122 20:15:00  METEOSAT   NearIR  -21.66  -70.45  35.0   -21.33  -71.02     0.26      0.72   0.05    0.80  6.56  43.9 GIF
   20200122 20:45:00  METEOSAT       IR  -21.75  -70.49  35.0   -21.40  -71.11     0.42      1.19   0.05    0.61  3.98  45.0 GIF
   20200122 21:15:00  METEOSAT   NearIR  -21.85  -70.52  35.0   -21.35  -71.06     0.22      0.62   0.10    0.92  7.66  47.8 GIF
   20200122 21:45:00  METEOSAT       IR  -21.95  -70.55  35.0   -21.40  -71.09     0.17      0.48   0.05    1.21  9.89  49.1 GIF
   20200122 22:15:00  METEOSAT       IR  -22.05  -70.59  35.0   -21.45  -71.23     0.14      0.41   0.40    1.39 11.65  48.1 GIF
   20200122 22:45:00  METEOSAT       IR  -22.15  -70.62  35.0   -21.55  -71.27     0.20      0.56   0.40    1.07  8.52  31.8 GIF
   20200122 23:15:00  METEOSAT       IR  -22.25  -70.65  35.0   -21.70  -71.41     0.21      0.59   0.05    1.03  8.09  46.5 GIF
   20200122 23:45:00  METEOSAT       IR  -22.35  -70.68  35.0   -21.72  -71.55     0.16      0.46   0.25    1.26 10.42  58.5 GIF
   20200123 00:15:00  METEOSAT       IR  -22.45  -70.72  35.0   -21.75  -71.72     0.17      0.49   0.05    1.19  9.70  53.7 GIF
   20200123 00:45:00  METEOSAT       IR  -22.55  -70.75  35.0   -21.70  -71.94     0.18      0.52   0.15    1.14  9.21  49.2 GIF
   20200123 01:15:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    61.82   56.61     0.20      0.56    N/A    1.76  7.96   0.0 GIF
   20200123 01:45:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    61.82   56.61     0.20      0.56    N/A    1.76  7.68   0.0 GIF
   20200123 02:15:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  7.38   0.0 GIF
   20200123 02:45:00  METEOSAT       IR  -22.95  -71.18  35.0   -22.00  -72.49     0.16      0.45   0.05    1.29 10.65  75.6 GIF
   20200123 03:15:00  METEOSAT       IR  -23.05  -71.22  35.0   -22.33  -72.44     0.16      0.46   0.05    1.26 10.42  96.7 GIF
   20200123 03:45:00  METEOSAT       IR  -23.16  -71.25  35.0   -22.23  -72.55     0.24      0.69   0.35    0.90  6.87  88.1 GIF
   20200123 04:15:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  6.14   0.0 GIF
   20200123 04:45:00  METEOSAT   NearIR  -23.37  -71.31  35.0   -22.47  -72.24     0.24      0.67   0.05    0.86  7.07  58.3 GIF
   20200123 05:15:00  METEOSAT   NearIR  -23.47  -71.35  35.0   -22.50  -72.41     0.25      0.70   0.05    0.82  6.73  55.9 GIF
   20200123 05:45:00  METEOSAT   NearIR  -23.57  -71.38  35.0   -22.57  -72.50     0.21      0.60   0.15    0.95  7.85  58.4 GIF
   20200123 06:15:00  METEOSAT   NearIR  -23.67  -71.41  35.0   -22.62  -72.58     0.26      0.73   0.05    0.80  6.53  61.8 GIF
   20200123 06:45:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  4.82   0.0 GIF
   20200123 07:15:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  4.59   0.0 GIF
   20200123 07:45:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  4.38   0.0 GIF
   20200123 08:15:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  4.18   0.0 GIF
   20200123 08:45:00    SSMI16 85-92GHz  -22.42  -70.70  35.0    62.29   58.65     0.20      0.56    N/A    1.76  4.00   0.0 GIF
   20200123 09:15:00  METEOSAT       IR  -24.29  -71.61  35.0   -23.72  -73.06     0.32      0.92   0.05    0.73  5.17  79.8 GIF
   20200123 09:45:00  METEOSAT   NearIR  -24.40  -71.64  35.0   -23.57  -73.12     0.44      1.23   0.05    0.49  3.84  60.6 GIF
   20200123 10:15:00  METEOSAT   NearIR  -24.51  -71.68  35.0   -23.71  -72.91     0.44      1.25   0.05    0.48  3.78  49.8 GIF
   20200123 10:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    62.51   57.78     0.25      0.70    N/A    1.26  6.47   0.0 GIF
   20200123 11:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    62.51   57.78     0.25      0.70    N/A    1.26  6.28   0.0 GIF
   20200123 11:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    62.51   57.78     0.25      0.70    N/A    1.26  6.07   0.0 GIF
   20200123 12:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    62.51   57.78     0.25      0.70    N/A    1.26  5.86   0.0 GIF
   20200123 12:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    62.51   57.78     0.25      0.70    N/A    1.26  5.64   0.0 GIF
   20200123 13:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  5.42   0.0 GIF
   20200123 13:45:00  METEOSAT       IR  -25.16  -71.81  25.0   -24.94  -73.06     0.25      0.71   0.05    0.88  6.64  63.7 GIF
   20200123 14:15:00  METEOSAT       IR  -25.30  -71.85  25.0   -24.90  -73.26     0.18      0.51   0.05    1.14  9.25  61.3 GIF
   20200123 14:45:00  METEOSAT       IR  -25.43  -71.88  25.0   -25.08  -73.46     0.17      0.48   0.15    1.21  9.86  63.6 GIF
   20200123 15:15:00  METEOSAT       IR  -25.57  -71.92  25.0   -25.17  -73.52     0.22      0.63   0.05    0.97  7.55  71.5 GIF
   20200123 15:45:00  METEOSAT       IR  -25.70  -71.95  25.0   -25.13  -73.53     0.25      0.71   0.05    0.89  6.73  84.1 GIF
   20200123 16:15:00  METEOSAT       IR  -25.84  -71.99  25.0   -25.16  -73.71     0.29      0.81   0.05    0.80  5.86  98.5 GIF
   20200123 16:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  4.05   0.0 GIF
   20200123 17:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.88   0.0 GIF
   20200123 17:45:00  METEOSAT       IR  -26.25  -72.10  25.0   -25.80  -73.97     0.33      0.93   0.05    0.73  5.10  79.4 GIF
   20200123 18:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.58   0.0 GIF
   20200123 18:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.43   0.0 GIF
   20200123 19:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.30   0.0 GIF
   20200123 19:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.17   0.0 GIF
   20200123 20:15:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  3.05   0.0 GIF
   20200123 20:45:00     AMSR2 85-92GHz  -24.36  -71.63  35.0    63.02   59.71     0.25      0.70    N/A    1.26  2.94   0.0 GIF
   20200123 21:15:00  METEOSAT       IR  -27.22  -72.37  25.0   -27.75  -73.38     0.25      0.72   0.05    0.88  6.62  98.2 GIF
   20200123 21:45:00  METEOSAT       IR  -27.36  -72.41  25.0   -27.86  -73.59     0.16      0.46   0.20    1.26 10.40  98.5 GIF
   20200123 22:15:00  METEOSAT   NearIR  -27.50  -72.45  25.0   -27.83  -73.75     0.18      0.52   0.05    1.10  9.15  69.8 GIF
   20200123 22:45:00  METEOSAT       IR  -27.64  -72.49  25.0   -27.84  -73.96     0.17      0.49   0.20    1.19  9.68  47.4 GIF
   20200123 23:15:00  METEOSAT   NearIR  -27.79  -72.54  25.0   -27.89  -74.23     0.22      0.63   0.05    0.90  7.48  48.3 GIF
 
 
Key:

  - Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 30-minute window, it is put in bold.

  - Source/sensor: Satellite source of the analyzed image.

  - Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

  - ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

  - Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

  - 50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

  - 95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

  - Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

  - % cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

 
Links to related versions:
  - Track Plot
  - Summary table
  - Intensity Estimation