Tropical Depression 08W


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    .
   20250715 05:20:00  HIMAWARI      Vis   32.15  140.38  35.0    31.63  142.65    6.85      0.05     N/A    0.11  0.69   0.0 PNG
   20250715 05:50:00  HIMAWARI       IR   32.40  140.39  35.0    32.75  142.17    8.51      0.35    3.01    0.27  0.56   8.8 PNG
   20250715 06:30:00  HIMAWARI       IR   32.64  140.40  35.0    33.69  139.19    9.49      0.20    3.36    0.08  0.50   9.6 PNG
   20250715 07:00:00  HIMAWARI     SWIR   32.89  140.41  35.0    33.09  138.12    3.51      0.10     N/A    0.20  1.35   0.0 PNG
   20250715 07:20:00  HIMAWARI     SWIR   33.13  140.43  35.0    33.36  138.10    4.18      0.05     N/A    0.17  1.14   0.0 PNG
   20250715 07:50:00  HIMAWARI       IR   33.38  140.44  35.0    34.35  138.76    9.49      0.10    3.36    0.26  0.50  49.7 PNG
   20250715 08:20:00  HIMAWARI     SWIR   33.96  140.87  40.0    33.91  140.93    2.20      0.05     N/A    0.29  2.15   0.0 PNG
   20250715 08:50:00  HIMAWARI     SWIR   34.21  140.90  40.0    33.88  138.60    0.97      0.05     N/A    0.61  4.91   0.0 PNG
   20250715 09:20:00  HIMAWARI     SWIR   34.46  140.93  40.0    34.16  138.54    1.04      0.40     N/A    0.57  4.58   0.0 PNG
   20250715 09:50:00  HIMAWARI     SWIR   34.71  140.97  40.0    34.56  139.72    3.81      0.25     N/A    0.19  1.25   0.0 PNG
   20250715 10:20:00  HIMAWARI       IR   34.96  141.00  40.0    34.83  141.31    9.49      0.10    3.36    0.07  0.50   6.7 PNG
   20250715 10:50:00  HIMAWARI       IR   35.20  141.03  40.0    34.53  139.05    8.14      0.05    2.88    0.27  0.58  47.9 PNG
   20250715 11:20:00  HIMAWARI       IR   35.45  141.07  40.0    35.00  139.04    9.49      0.30    3.36    0.11  0.50  14.7 PNG
   20250715 12:00:00  HIMAWARI     SWIR   35.70  141.10  40.0    35.50  140.27    8.73      0.45     N/A    0.11  0.54   0.0 PNG
   20250715 12:20:00  HIMAWARI     SWIR   35.94  141.13  40.0    35.72  140.36    5.25      0.10     N/A    0.15  0.90   0.0 PNG
   20250715 12:50:00  HIMAWARI     SWIR   36.19  141.17  40.0    36.09  140.83    2.80      0.05     N/A    0.24  1.69   0.0 PNG
   20250715 13:20:00  HIMAWARI       IR   36.43  141.20  40.0    36.41  140.95    9.49      0.15    3.36    0.08  0.50   8.1 PNG
   20250715 13:50:00  HIMAWARI       IR   36.68  141.23  40.0    37.15  141.80    9.49      0.10    3.36    0.21  0.50  43.5 PNG
   20250715 14:20:00  HIMAWARI       IR   37.76  141.25  40.0    37.63  141.63    4.64      0.40    1.64    0.31  1.02  45.0 PNG
   20250715 14:50:00  HIMAWARI     SWIR   38.01  141.30  40.0    37.81  141.62    2.95      0.45     N/A    0.23  1.61   0.0 PNG
   20250715 15:20:00  HIMAWARI       IR   38.26  141.35  40.0    38.06  141.83    9.49      0.40    3.36    0.06  0.50   5.0 PNG
   20250715 15:50:00  HIMAWARI       IR   38.51  141.40  40.0    38.38  141.69    9.49      0.40    3.36    0.17  0.50  10.1 PNG
   20250715 16:20:00  HIMAWARI     SWIR   38.76  141.45  40.0    38.51  141.96    2.70      0.30     N/A    0.24  1.75   0.0 PNG
   20250715 16:50:00  HIMAWARI       IR   39.01  141.50  40.0    38.73  144.04    1.85      0.15    0.65    0.47  2.56  23.7 PNG
   20250715 17:20:00  HIMAWARI     SWIR   39.26  141.54  40.0    38.96  144.06    2.49      0.05     N/A    0.26  1.90   0.0 PNG
   20250715 17:50:00  HIMAWARI     SWIR   39.51  141.59  40.0    39.16  143.99    1.81      0.05     N/A    0.34  2.62   0.0 PNG
   20250715 18:20:00  HIMAWARI     SWIR   39.76  141.64  40.0    39.51  144.11    1.53      0.15     N/A    0.40  3.09   0.0 PNG
   20250715 18:50:00  HIMAWARI       IR   40.13  141.70  40.0    40.01  143.99    3.49      0.25    1.24    0.35  1.36   9.1 PNG
   20250715 19:20:00  HIMAWARI     SWIR   40.26  141.73  25.0    40.01  142.28    3.77      0.20     N/A    0.19  1.26   0.0 PNG
   20250715 19:50:00       GMI    89GHz   40.51  141.77  40.0    40.71  142.30    1.57      0.60    0.56    0.12  3.02   0.8 PNG
   20250715 20:20:00     AMSR2    89GHz   40.59  142.09  25.0    40.34  140.77    1.38      0.75    0.49    0.25  3.44   1.1 PNG
   20250715 20:50:00     AMSR2    89GHz   40.59  142.09  25.0    40.48  140.84    1.38      0.75    0.49    0.25  3.03   1.1 PNG
   20250715 21:20:00     AMSR2    89GHz   40.59  142.09  25.0    40.70  140.95    1.38      0.75    0.49    0.25  2.95   1.1 PNG
   20250715 21:50:00  SSMISF17    89GHz   41.24  142.44  25.0    40.29  140.91    0.96      0.75    0.34    0.71  4.95   4.4 PNG
   20250715 22:20:00  SSMISF17    89GHz   41.24  142.44  25.0    40.45  140.95    0.96      0.75    0.34    0.71  4.77   4.4 PNG
   20250715 22:50:00  SSMISF17    89GHz   41.24  142.44  25.0    40.68  141.06    0.96      0.75    0.34    0.71  4.67   4.4 PNG
   20250715 23:20:00  SSMISF17    89GHz   41.24  142.44  25.0    40.91  141.16    0.96      0.75    0.34    0.71  4.55   4.4 PNG
   20250715 23:50:00  SSMISF17    89GHz   41.24  142.44  25.0    41.13  141.27    0.96      0.75    0.34    0.71  4.42   4.4 PNG
   20250716 00:20:00  SSMISF17    89GHz   41.24  142.44  25.0    41.36  141.37    0.96      0.75    0.34    0.71  4.30   4.4 PNG
   20250716 00:50:00  SSMISF17    89GHz   41.24  142.44  25.0    41.59  141.48    0.96      0.75    0.34    0.71  4.17   4.4 PNG
   20250716 01:20:00  HIMAWARI      Vis   42.78  143.28  25.0    41.38  145.22    0.76      0.05     N/A    0.49  6.26   0.0 PNG
   20250716 01:50:00  HIMAWARI      Vis   43.01  143.40  25.0    41.63  145.38    0.80      0.20     N/A    0.47  5.96   0.0 PNG
   20250716 02:20:00  HIMAWARI      Vis   43.23  143.53  20.0    41.88  145.55    0.86      0.05     N/A    0.44  5.49   0.0 PNG
   20250716 02:50:00  SSMISF17    89GHz   41.24  142.44  25.0    42.49  141.94    0.96      0.75    0.34    0.71  3.65   4.4 PNG
   20250716 03:20:00  SSMISF17    89GHz   41.24  142.44  25.0    42.72  142.05    0.96      0.75    0.34    0.71  3.53   4.4 PNG
   20250716 03:50:00       GMI    89GHz   43.90  143.90  20.0    44.35  145.84    1.26      0.85    0.45    0.34  3.76   3.4 PNG
   20250716 04:20:00     AMSR2    89GHz   44.13  144.02  25.0    43.73  144.16    0.68      0.95    0.24    1.33  7.00  15.3 PNG
   20250716 04:50:00     AMSR2    89GHz   44.13  144.02  25.0    43.91  144.18    0.68      0.95    0.24    1.33  6.80  15.3 PNG
   20250716 05:20:00     AMSR2    89GHz   44.13  144.02  25.0    44.12  144.33    0.68      0.95    0.24    1.33  6.62  15.3 PNG
   20250716 05:50:00     AMSR2    89GHz   44.13  144.02  25.0    44.33  144.48    0.68      0.95    0.24    1.33  6.41  15.3 PNG
   20250716 06:20:00     AMSR2    89GHz   44.13  144.02  25.0    44.54  144.64    0.68      0.95    0.24    1.33  6.19  15.3 PNG
   20250716 06:50:00     AMSR2    89GHz   44.13  144.02  25.0    44.74  144.80    0.68      0.95    0.24    1.33  5.96  15.3 PNG
   20250716 07:20:00     AMSR2    89GHz   44.13  144.02  25.0    44.95  144.96    0.68      0.95    0.24    1.33  5.73  15.3 PNG
   20250716 07:50:00     AMSR2    89GHz   44.13  144.02  25.0    45.14  145.14    0.68      0.95    0.24    1.33  5.50  15.3 PNG
   20250716 08:20:00     AMSR2    89GHz   44.13  144.02  25.0    45.34  145.33    0.68      0.95    0.24    1.33  5.27  15.3 PNG
   20250716 08:50:00     AMSR2    89GHz   44.13  144.02  25.0    45.52  145.53    0.68      0.95    0.24    1.33  5.05  15.3 PNG
   20250716 09:20:00     AMSR2    89GHz   44.13  144.02  25.0    45.70  145.74    0.68      0.95    0.24    1.33  4.84  15.3 PNG
   20250716 09:50:00     AMSR2    89GHz   44.13  144.02  25.0    45.88  145.95    0.68      0.95    0.24    1.33  4.63  15.3 PNG
   20250716 10:20:00     AMSR2    89GHz   44.13  144.02  25.0    46.05  146.18    0.68      0.95    0.24    1.33  4.44  15.3 PNG
   20250716 10:50:00     AMSR2    89GHz   44.13  144.02  25.0    46.22  146.43    0.68      0.95    0.24    1.33  4.25  15.3 PNG
   20250716 11:20:00     AMSR2    89GHz   44.13  144.02  25.0    46.38  146.68    0.68      0.95    0.24    1.33  4.07  15.3 PNG
   20250716 11:50:00     AMSR2    89GHz   44.13  144.02  25.0    46.53  146.94    0.68      0.95    0.24    1.33  3.90  15.3 PNG
   20250716 12:20:00     AMSR2    89GHz   44.13  144.02  25.0    46.64  147.28    0.68      0.95    0.24    1.33  3.74  15.3 PNG
   20250716 12:50:00     AMSR2    89GHz   44.13  144.02  25.0    46.78  147.57    0.68      0.95    0.24    1.33  3.59  15.3 PNG
   20250716 13:20:00     AMSR2    89GHz   44.13  144.02  25.0    46.92  147.87    0.68      0.95    0.24    1.33  3.45  15.3 PNG
   20250716 13:50:00     AMSR2    89GHz   44.13  144.02  25.0    47.04  148.18    0.68      0.95    0.24    1.33  3.31  15.3 PNG
   20250716 14:20:00     AMSR2    89GHz   44.13  144.02  25.0    47.17  148.50    0.68      0.95    0.24    1.33  3.18  15.3 PNG
   20250716 14:50:00     AMSR2    89GHz   44.13  144.02  25.0    47.29  148.83    0.68      0.95    0.24    1.33  3.06  15.3 PNG
   20250716 15:20:00     AMSR2    89GHz   44.13  144.02  25.0    47.40  149.18    0.68      0.95    0.24    1.33  2.94  15.3 PNG
   20250716 15:50:00  HIMAWARI     SWIR   47.87  149.70  20.0    46.32  151.57    1.68      0.30     N/A    0.37  2.83   0.0 PNG
   20250716 16:20:00  HIMAWARI     SWIR   47.92  150.13  20.0    46.57  151.89    1.82      0.05     N/A    0.34  2.61   0.0 PNG
   20250716 16:50:00  HIMAWARI     SWIR   47.99  150.55  20.0    46.69  152.41    1.49      0.05     N/A    0.41  3.19   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