Tropical Depression 22W


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    .
   20260901 09:30:00  HIMAWARI     SWIR   22.50  131.62  35.0    22.75  132.78    4.32      0.40     N/A    0.17  1.10   0.0 PNG
   20260901 10:00:00  HIMAWARI     SWIR   22.50  131.63  35.0    22.65  132.88    1.52      0.40     N/A    0.40  3.12   0.0 PNG
   20260901 10:30:00  HIMAWARI       IR   22.50  131.65  35.0    23.83  130.49    9.49      0.40    3.36    0.09  0.50   2.9 PNG
   20260901 11:00:00  HIMAWARI       IR   22.51  131.67  35.0    23.76  130.37    9.49      0.40    3.36    0.25  0.50   6.3 PNG
   20260901 11:30:00  HIMAWARI       IR   22.51  131.69  35.0    23.76  130.50    9.49      0.50    3.36    0.25  0.50   7.8 PNG
   20260901 12:00:00  HIMAWARI     SWIR   22.51  131.71  35.0    23.01  133.23    3.23      0.05     N/A    0.21  1.47   0.0 PNG
   20260901 12:30:00  HIMAWARI     SWIR   22.52  131.73  35.0    22.97  133.63    3.09      0.25     N/A    0.22  1.53   0.0 PNG
   20260901 13:00:00  HIMAWARI     SWIR   22.52  131.75  35.0    22.75  133.54    2.54      0.05     N/A    0.26  1.87   0.0 PNG
   20260901 13:30:00  HIMAWARI       IR   22.52  131.78  35.0    22.55  132.83    9.49      0.05    3.36    0.08  0.50   9.8 PNG
   20260901 14:00:00  HIMAWARI     SWIR   22.53  131.80  35.0    22.73  133.67    2.55      0.05     N/A    0.26  1.86   0.0 PNG
   20260901 14:20:00  HIMAWARI     SWIR   22.06  132.76  35.0    22.04  133.11    1.60      0.25     N/A    0.38  2.96   0.0 PNG
   20260901 15:00:00  HIMAWARI     SWIR   22.08  132.78  35.0    22.10  133.07    1.35      0.05     N/A    0.45  3.50   0.0 PNG
   20260901 15:30:00  HIMAWARI     SWIR   22.55  131.87  35.0    22.30  133.01    1.19      0.10     N/A    0.50  3.98   0.0 PNG
   20260901 16:00:00  HIMAWARI     SWIR   22.13  132.83  35.0    22.08  132.94    1.21      0.05     N/A    0.50  3.93   0.0 PNG
   20260901 16:30:00  HIMAWARI     SWIR   22.15  132.85  35.0    22.17  132.96    1.14      0.25     N/A    0.52  4.18   0.0 PNG
   20260901 17:00:00  HIMAWARI       IR   22.16  132.86  35.0    22.09  132.92    2.99      0.05    1.06    0.37  1.59  61.6 PNG
   20260901 17:30:00  HIMAWARI     SWIR   22.18  132.88  35.0    22.28  133.20    2.87      0.05     N/A    0.23  1.65   0.0 PNG
   20260901 18:00:00  HIMAWARI     SWIR   22.19  132.89  35.0    22.21  132.78    1.18      0.15     N/A    0.51  4.01   0.0 PNG
   20260901 18:30:00  HIMAWARI     SWIR   22.20  132.90  35.0    22.83  132.93    1.44      0.05     N/A    0.42  3.31   0.0 PNG
   20260901 19:00:00  HIMAWARI     SWIR   22.21  132.91  35.0    22.46  132.91    1.53      0.10     N/A    0.40  3.10   0.0 PNG
   20260901 19:30:00     AMSR2    89GHz   22.22  132.93  35.0    22.17  133.58    0.70      0.90    0.25    1.25  6.75  18.8 PNG
   20260901 20:00:00  HIMAWARI     SWIR   22.24  132.94  35.0    22.59  133.04    0.74      0.50     N/A    0.78  6.39   0.0 PNG
   20260901 20:30:00     AMSR2    89GHz   22.22  132.93  35.0    22.14  133.62    0.70      0.90    0.25    1.25  5.25  18.8 PNG
   20260901 21:00:00     AMSR2    89GHz   22.22  132.93  35.0    22.16  133.63    0.70      0.90    0.25    1.25  5.04  18.8 PNG
   20260901 21:30:00     AMSR2    89GHz   22.22  132.93  35.0    22.17  133.64    0.70      0.90    0.25    1.25  4.84  18.8 PNG
   20260901 22:00:00     AMSR2    89GHz   22.22  132.93  35.0    22.18  133.65    0.70      0.90    0.25    1.25  4.64  18.8 PNG
   20260901 22:30:00  SSMISF18    89GHz   22.30  133.25  35.0    22.40  133.25    0.83      0.65    0.29    0.94  5.71   5.4 PNG
   20260901 23:00:00  SSMISF18    89GHz   22.30  133.25  35.0    22.44  133.25    0.83      0.65    0.29    0.94  4.89   5.4 PNG
   20260901 23:30:00  SSMISF18    89GHz   22.30  133.25  35.0    22.47  133.24    0.83      0.65    0.29    0.94  4.73   5.4 PNG
   20260902 00:00:00  SSMISF18    89GHz   22.30  133.25  35.0    22.51  133.23    0.83      0.65    0.29    0.94  4.56   5.4 PNG
   20260902 00:30:00  SSMISF18    89GHz   22.30  133.25  35.0    22.54  133.22    0.83      0.65    0.29    0.94  4.40   5.4 PNG
   20260902 01:00:00  HIMAWARI      Vis   22.49  133.17  35.0    22.54  133.36    0.75      0.15     N/A    0.49  6.32   0.0 PNG
   20260902 01:30:00  HIMAWARI      Vis   22.53  133.15  30.0    22.65  133.15    1.05      0.05     N/A    0.37  4.51   0.0 PNG
   20260902 02:00:00  HIMAWARI      Vis   22.57  133.13  30.0    22.52  133.11    1.06      0.05     N/A    0.37  4.47   0.0 PNG
   20260902 02:20:00  HIMAWARI     SWIR   22.61  133.12  30.0    23.28  131.57    1.08      0.05     N/A    0.55  4.39   0.0 PNG
   20260902 03:00:00  SSMISF18    89GHz   22.30  133.25  35.0    23.00  132.60    0.83      0.65    0.29    0.94  3.65   5.4 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