Tropical Depression 08R


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    .
   20210118 21:00:00  METEOSAT       IR  -19.28  -84.99   0.0   -20.21  -84.38     0.81      2.29   0.05    0.42  2.07  57.3 GIF
   20210118 21:15:00  METEOSAT       IR  -19.28  -84.94   0.0   -19.88  -84.65     3.36      9.49   0.50    0.03  0.50   3.4 GIF
   20210118 22:00:00  METEOSAT       IR  -19.25  -84.79   0.0   -20.03  -84.97     3.36      9.49   0.10    0.16  0.50  40.2 GIF
   20210118 22:00:00  METEOSAT       IR  -19.25  -84.79   0.0   -20.03  -84.97     3.36      9.49   0.10    0.16  0.50  40.2 GIF
   20210118 23:00:00  METEOSAT       IR  -19.23  -84.59   0.0   -19.93  -85.12     3.36      9.49   0.05    0.21  0.50  42.8 GIF
   20210118 23:15:00  METEOSAT       IR  -19.23  -84.54   0.0   -19.78  -84.62     3.36      9.49   0.35    0.19  0.50  41.3 GIF
   20210119 00:00:00  METEOSAT       IR  -19.21  -84.39   0.0   -19.99  -84.07     3.36      9.49   0.05    0.10  0.50   8.8 GIF
   20210119 00:15:00  METEOSAT       IR  -19.21  -84.34   0.0   -19.96  -83.97     3.36      9.49   0.05    0.01  0.50   1.2 GIF
   20210119 01:00:00  METEOSAT       IR  -19.39  -84.19   0.0   -20.02  -83.85     3.36      9.49   0.45    0.09  0.50  10.5 GIF
   20210119 01:00:00  METEOSAT       IR  -19.39  -84.19   0.0   -20.02  -83.85     3.36      9.49   0.45    0.09  0.50  10.5 GIF
   20210119 02:00:00  METEOSAT       IR  -19.39  -83.99   0.0   -20.24  -83.96     3.36      9.49   0.05    0.22  0.50  23.6 GIF
   20210119 02:15:00  METEOSAT       IR  -19.39  -83.93   0.0   -20.24  -83.91     3.36      9.49   0.05    0.17  0.50  17.3 GIF
   20210119 03:00:00  METEOSAT       IR  -19.39  -83.78   0.0   -19.69  -83.68     3.36      9.49   0.45    0.17  0.50  12.6 GIF
   20210119 03:00:00  METEOSAT       IR  -19.39  -83.78   0.0   -19.69  -83.68     3.36      9.49   0.45    0.17  0.50  12.6 GIF
   20210119 04:00:00  METEOSAT       IR  -19.40  -83.58   0.0   -19.65  -83.63     1.28      3.61   0.25    0.34  1.31  42.7 GIF
   20210119 04:15:00  METEOSAT       IR  -19.40  -83.53   0.0   -19.60  -83.69     3.36      9.49   0.30    0.24  0.50  41.0 GIF
   20210119 05:00:00  METEOSAT       IR  -19.41  -83.38   0.0   -19.61  -83.61     3.36      9.49   0.30    0.14  0.50  10.6 GIF
   20210119 05:15:00  METEOSAT       IR  -19.41  -83.33   0.0   -19.61  -83.56     3.36      9.49   0.30    0.13  0.50   8.1 GIF
   20210119 06:00:00  METEOSAT       IR  -19.42  -83.17   0.0   -19.47  -83.44     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20210119 06:15:00  METEOSAT       IR  -19.43  -83.13   0.0   -19.58  -83.60     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20210119 07:00:00  METEOSAT       IR  -19.44  -82.98   0.0   -19.59  -83.37     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20210119 07:15:00  METEOSAT       IR  -19.45  -82.93   0.0   -19.62  -83.30     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20210119 08:00:00  METEOSAT       IR  -19.47  -82.78   0.0   -19.67  -83.31     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20210119 08:15:00  METEOSAT       IR  -19.47  -82.73   0.0   -19.70  -83.23     0.76      2.16   0.40    0.43  2.20  13.1 GIF
   20210119 09:00:00  METEOSAT       IR  -19.49  -82.58   0.0   -19.82  -83.03     1.09      3.08   0.15    0.37  1.54  18.2 GIF
   20210119 09:15:00  METEOSAT       IR  -19.50  -82.53   0.0   -19.85  -82.82     1.74      4.92   0.05    0.31  0.96  14.2 GIF
   20210119 10:00:00  METEOSAT       IR  -19.53  -82.39   0.0   -20.03  -82.92     2.11      5.96   0.15    0.29  0.80  11.3 GIF
   20210119 10:15:00  METEOSAT       IR  -19.53  -82.34   0.0   -20.06  -82.84     1.11      3.15   0.15    0.36  1.51  13.6 GIF
   20210119 11:00:00  METEOSAT       IR  -19.56  -82.19   0.0   -20.16  -82.86     3.36      9.49   0.05    0.11  0.50   5.1 GIF
   20210119 11:00:00  METEOSAT       IR  -19.56  -82.19   0.0   -20.16  -82.86     3.36      9.49   0.05    0.11  0.50   5.1 GIF
   20210119 12:00:00  METEOSAT       IR  -19.60  -82.00   0.0   -20.18  -82.82     3.36      9.49   0.15    0.19  0.50   8.5 GIF
   20210119 12:00:00  METEOSAT       IR  -19.60  -82.00   0.0   -20.18  -82.82     3.36      9.49   0.15    0.19  0.50   8.5 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