Tropical Depression 28W


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.1
 

                                         -------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    .
   20241222 15:20:00  HIMAWARI     SWIR   11.23  112.97  25.0    11.88  112.58    2.01      0.10     N/A    0.32  2.36   0.0 PNG
   20241222 15:50:00  HIMAWARI       IR   11.27  112.93  25.0     9.79  111.58    9.49      0.35    3.36    0.15  0.50   3.6 PNG
   20241222 16:20:00  HIMAWARI       IR   11.30  112.90  25.0    10.00  112.11    9.49      0.45    3.36    0.06  0.50   1.6 PNG
   20241222 16:50:00  HIMAWARI     SWIR   11.33  112.86  25.0    13.31  112.63    3.09      0.15     N/A    0.22  1.54   0.0 PNG
   20241222 17:20:00  HIMAWARI     SWIR   11.37  112.82  25.0    13.29  112.29    1.85      0.40     N/A    0.34  2.57   0.0 PNG
   20241222 17:50:00  HIMAWARI     SWIR   11.40  112.79  25.0    13.38  112.56    1.35      0.15     N/A    0.45  3.51   0.0 PNG
   20241222 18:20:00  HIMAWARI       IR   11.43  112.75  25.0    13.38  112.34    1.77      0.05    0.63    0.48  2.68  26.9 PNG
   20241222 18:50:00  HIMAWARI       IR   11.47  112.71  25.0    13.29  112.15    2.45      0.50    0.87    0.40  1.93  39.3 PNG
   20241222 19:20:00  HIMAWARI     SWIR   11.50  112.67  25.0    10.65  113.29    3.06      0.15     N/A    0.22  1.55   0.0 PNG
   20241222 19:50:00  HIMAWARI     SWIR   11.53  112.63  25.0    10.38  113.02    1.58      0.35     N/A    0.39  3.01   0.0 PNG
   20241222 20:20:00  HIMAWARI     SWIR   10.57  112.99  30.0    10.57  112.99    1.13      0.35     N/A    0.53  4.19   0.0 PNG
   20241222 20:50:00  SSMISF18    89GHz   10.60  112.95  30.0    10.60  112.95    1.23      1.90    0.44    0.37  3.85   1.7 PNG
   20241222 21:20:00  SSMISF18    89GHz   10.60  112.95  30.0    10.62  112.97    1.23      1.90    0.44    0.37  3.74   1.7 PNG
   20241222 21:50:00  SSMISF18    89GHz   10.60  112.95  30.0    10.66  112.92    1.23      1.90    0.44    0.37  3.68   1.7 PNG
   20241222 22:20:00  SSMISF18    89GHz   10.60  112.95  30.0    10.70  112.87    1.23      1.90    0.44    0.37  3.60   1.7 PNG
   20241222 22:50:00  SSMISF18    89GHz   10.60  112.95  30.0    10.74  112.82    1.23      1.90    0.44    0.37  3.53   1.7 PNG
   20241222 23:20:00  SSMISF17    89GHz   10.77  112.76  30.0    10.77  112.76    1.15      1.75    0.41    0.46  4.13   2.0 PNG
   20241222 23:50:00  SSMISF16    89GHz   10.80  112.71  30.0    10.80  112.71    1.04      1.65    0.37    0.60  4.58   2.4 PNG
   20241223 00:20:00  SSMISF16    89GHz   10.80  112.71  30.0    10.85  112.68    1.04      1.65    0.37    0.60  4.36   2.4 PNG
   20241223 00:50:00  HIMAWARI      Vis   10.87  112.62  30.0    10.72  112.72    1.02      0.25     N/A    0.38  4.65   0.0 PNG
   20241223 01:20:00  SSMISF16    89GHz   10.80  112.71  30.0    10.92  112.59    1.04      1.65    0.37    0.60  4.16   2.4 PNG
   20241223 01:50:00  HIMAWARI      Vis   10.93  112.53  30.0    11.08  112.86    0.85      0.20     N/A    0.44  5.59   0.0 PNG
   20241223 02:20:00  HIMAWARI      Vis   10.98  112.53  30.0    11.03  112.79    0.88      0.05     N/A    0.43  5.40   0.0 PNG
   20241223 02:50:00  HIMAWARI      Vis   11.00  112.50  30.0    11.05  112.75    0.64      0.10     N/A    0.57  7.38   0.0 PNG
   20241223 03:20:00  HIMAWARI     SWIR   11.02  112.47  30.0    11.02  112.72    1.26      0.30     N/A    0.48  3.77   0.0 PNG
 
 
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