Tropical Depression 28S


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    .
   20250328 03:30:00  HIMAWARI      Vis  -14.45  123.83  35.0   -14.80  122.90    0.37      0.05     N/A    0.96 12.98   0.0 PNG
   20250328 04:00:00  HIMAWARI      Vis  -14.50  123.87  35.0   -14.70  122.94    0.43      0.10     N/A    0.81 10.91   0.0 PNG
   20250328 04:30:00  HIMAWARI      Vis  -14.56  123.90  35.0   -14.81  123.02    0.39      0.05     N/A    0.89 12.06   0.0 PNG
   20250328 05:00:00  HIMAWARI      Vis  -14.61  123.93  35.0   -14.96  123.08    0.41      0.25     N/A    0.87 11.70   0.0 PNG
   20250328 05:30:00  HIMAWARI      Vis  -14.66  123.96  35.0   -15.11  123.08    0.43      0.10     N/A    0.82 10.96   0.0 PNG
   20250328 06:00:00  HIMAWARI      Vis  -14.71  123.99  35.0   -14.96  123.01    0.38      0.25     N/A    0.93 12.58   0.0 PNG
   20250328 06:30:00  HIMAWARI      Vis  -14.77  124.02  35.0   -15.02  123.19    0.70      0.15     N/A    0.52  6.75   0.0 PNG
   20250328 07:00:00     AMSR2    89GHz  -14.71  123.99  35.0   -15.02  123.64    0.94      0.45    0.33    0.74  4.75  36.4 PNG
   20250328 07:30:00     AMSR2    89GHz  -14.71  123.99  35.0   -15.08  123.67    0.94      0.45    0.33    0.74  4.63  36.4 PNG
   20250328 08:00:00     AMSR2    89GHz  -14.71  123.99  35.0   -15.28  123.36    0.94      0.45    0.33    0.74  4.50  36.4 PNG
   20250328 08:30:00  HIMAWARI       IR  -15.14  123.78  40.0   -15.19  122.75    1.05      0.20    0.37    0.66  4.50   4.3 PNG
   20250328 09:00:00  HIMAWARI       IR  -15.20  123.80  40.0   -15.35  122.97    1.04      0.50    0.37    0.67  4.55   2.8 PNG
   20250328 09:30:00  HIMAWARI       IR  -15.27  123.82  40.0   -15.37  123.04    0.55      0.10    0.20    1.08  8.59   6.5 PNG
   20250328 09:50:00  HIMAWARI       IR  -15.33  123.83  40.0   -15.38  123.00    0.52      0.05    0.18    1.14  9.18  45.4 PNG
   20250328 10:20:00  HIMAWARI       IR  -15.39  123.85  40.0   -15.39  122.94    0.41      0.20    0.15    1.38 11.56   9.3 PNG
   20250328 11:00:00  HIMAWARI       IR  -15.46  123.87  40.0   -15.33  123.12    0.58      0.05    0.20    1.04  8.19  40.7 PNG
   20250328 11:20:00  HIMAWARI       IR  -15.52  123.88  40.0   -15.27  123.11    0.46      0.25    0.16    1.25 10.27   6.9 PNG
   20250328 11:50:00  HIMAWARI       IR  -15.58  123.90  40.0   -15.23  123.07    0.46      0.15    0.16    1.24 10.23  31.5 PNG
   20250328 12:30:00  HIMAWARI       IR  -15.64  123.92  40.0   -15.19  123.03    0.60      0.30    0.21    1.00  7.87   3.7 PNG
   20250328 13:00:00  SSMISF16    89GHz  -15.39  123.85  40.0   -15.97  123.06    0.81      1.35    0.29    0.98  5.04   1.8 PNG
   20250328 13:20:00  SSMISF16    89GHz  -15.39  123.85  40.0   -16.00  123.07    0.81      1.35    0.29    0.98  4.92   1.8 PNG
   20250328 13:50:00  HIMAWARI       IR  -15.80  123.80  40.0   -15.58  123.18    0.47      0.05    0.17    1.22 10.03   3.1 PNG
   20250328 14:20:00  HIMAWARI       IR  -15.85  123.80  40.0   -15.65  123.23    0.59      0.40     N/A    1.03  8.10   0.0 PNG
   20250328 14:50:00  HIMAWARI       IR  -15.90  123.80  40.0   -15.70  123.20    0.68      0.05    0.24    0.91  6.98  50.3 PNG
   20250328 15:30:00  HIMAWARI       IR  -15.95  123.80  45.0   -15.70  123.18    0.44      0.05    0.15    1.31 10.88  42.6 PNG
   20250328 16:00:00  HIMAWARI       IR  -16.00  123.80  45.0   -15.75  123.18    0.37      0.10    0.13    1.50 12.79  46.3 PNG
   20250328 16:20:00  HIMAWARI       IR  -16.06  123.80  45.0   -15.88  123.41    0.45      0.05    0.16    1.29 10.64  55.1 PNG
   20250328 16:50:00  HIMAWARI       IR  -16.11  123.81  45.0   -15.81  123.39    0.41      0.40     N/A    1.38 11.56   0.0 PNG
   20250328 17:20:00  HIMAWARI       IR  -16.17  123.81  45.0   -15.87  123.39    0.39      0.10    0.14    1.45 12.24   3.7 PNG
   20250328 17:50:00  HIMAWARI       IR  -16.22  123.81  45.0   -15.97  123.50    0.41      0.05    0.14    1.39 11.68  10.9 PNG
   20250328 18:30:00  HIMAWARI       IR  -16.28  123.82  45.0   -16.03  123.56    0.35      0.15    0.13    1.56 13.39  27.3 PNG
   20250328 19:00:00  HIMAWARI       IR  -16.34  123.82  45.0   -16.04  123.59    0.33      0.05    0.12    1.64 14.17  14.1 PNG
   20250328 19:20:00  HIMAWARI       IR  -16.40  123.83  45.0   -16.08  123.57    0.34      0.05     N/A    1.62 14.00   0.0 PNG
   20250328 20:00:00  HIMAWARI       IR  -16.47  123.80  45.0   -16.12  123.64    0.47      0.05     N/A    1.23 10.12   0.0 PNG
   20250328 20:20:00  HIMAWARI       IR  -16.54  123.80  45.0   -16.19  123.64    0.72      0.05    0.26    0.87  6.57   2.8 PNG
   20250328 20:50:00  SSMISF18    89GHz  -16.60  123.80  45.0   -17.10  123.85    0.48      0.30    0.17    2.23  9.94  65.8 PNG
   20250328 21:20:00  SSMISF18    89GHz  -16.60  123.80  45.0   -17.15  123.85    0.48      0.30    0.17    2.23  9.16  65.8 PNG
   20250328 22:00:00  HIMAWARI       IR  -16.74  123.80  45.0   -16.79  123.75    0.30      0.15     N/A    1.82 15.96   0.0 PNG
   20250328 22:20:00  HIMAWARI       IR  -16.80  123.80  45.0   -16.80  123.80    0.30      0.10    0.11    1.80 15.74   1.8 PNG
   20250328 22:50:00  SSMISF17    89GHz  -16.80  123.80  45.0   -17.26  124.03    0.35      1.30    0.12    3.37 12.73  16.7 PNG
   20250328 23:20:00  SSMISF17    89GHz  -16.80  123.80  45.0   -17.34  124.03    0.35      1.30    0.12    3.37 12.06  16.7 PNG
   20250329 00:00:00  HIMAWARI      Vis  -17.01  123.81  45.0   -17.29  123.76    0.39      0.25     N/A    0.90 12.19   0.0 PNG
   20250329 00:30:00  SSMISF17    89GHz  -16.80  123.80  45.0   -17.51  124.04    0.35      1.30    0.12    3.37 10.42  16.7 PNG
   20250329 01:00:00  HIMAWARI      Vis  -17.15  123.82  45.0   -17.35  124.03    0.38      0.20     N/A    0.93 12.64   0.0 PNG
   20250329 01:30:00  HIMAWARI      Vis  -17.23  123.83  45.0   -17.48  124.09    0.35      0.30     N/A    1.00 13.64   0.0 PNG
   20250329 02:00:00  HIMAWARI      Vis  -17.30  123.83  45.0   -17.60  124.09    0.34      0.20     N/A    1.03 14.02   0.0 PNG
   20250329 02:20:00  HIMAWARI      Vis  -17.37  123.84  45.0   -17.62  124.10    0.36      0.20     N/A    0.98 13.34   0.0 PNG
   20250329 03:00:00  HIMAWARI      Vis  -17.45  123.84  45.0   -17.80  124.21    0.39      0.40     N/A    0.90 12.13   0.0 PNG
   20250329 03:30:00  HIMAWARI      Vis  -17.52  123.85  45.0   -17.97  124.38    0.40      0.15     N/A    0.87 11.74   0.0 PNG
   20250329 04:00:00  HIMAWARI      Vis  -17.60  123.86  45.0   -18.07  124.25    0.55      0.05     N/A    0.65  8.57   0.0 PNG
   20250329 04:30:00  HIMAWARI      Vis  -17.67  123.87  45.0   -18.17  124.18    0.42      0.20     N/A    0.84 11.29   0.0 PNG
   20250329 05:00:00  HIMAWARI      Vis  -17.75  123.88  45.0   -18.30  124.19    0.37      0.20     N/A    0.95 12.88   0.0 PNG
   20250329 05:30:00  HIMAWARI      Vis  -17.83  123.89  45.0   -18.38  124.15    0.42      0.25     N/A    0.83 11.18   0.0 PNG
   20250329 06:00:00  HIMAWARI      Vis  -17.90  123.90  45.0   -18.45  124.06    0.66      0.50     N/A    0.56  7.23   0.0 PNG
   20250329 06:30:00  HIMAWARI      Vis  -17.98  123.91  45.0   -18.65  123.94    0.83      0.05     N/A    0.46  5.75   0.0 PNG
   20250329 07:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.65  124.34    0.39      0.15    0.14    2.95 12.32  67.4 PNG
   20250329 07:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.70  124.33    0.39      0.15    0.14    2.95 10.86  67.4 PNG
   20250329 08:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.76  124.33    0.39      0.15    0.14    2.95 10.27  67.4 PNG
   20250329 08:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.83  124.34    0.39      0.15    0.14    2.95  9.68  67.4 PNG
   20250329 09:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.89  124.34    0.39      0.15    0.14    2.95  9.10  67.4 PNG
   20250329 09:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -18.95  124.34    0.39      0.15    0.14    2.95  8.55  67.4 PNG
   20250329 10:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.01  124.34    0.39      0.15    0.14    2.95  8.03  67.4 PNG
   20250329 10:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.07  124.34    0.39      0.15    0.14    2.95  7.54  67.4 PNG
   20250329 11:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.12  124.34    0.39      0.15    0.14    2.95  7.08  67.4 PNG
   20250329 11:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.18  124.34    0.39      0.15    0.14    2.95  6.66  67.4 PNG
   20250329 12:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.23  124.34    0.39      0.15    0.14    2.95  6.27  67.4 PNG
   20250329 12:30:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.29  124.34    0.39      0.15    0.14    2.95  5.91  67.4 PNG
   20250329 13:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.34  124.34    0.39      0.15    0.14    2.95  5.58  67.4 PNG
   20250329 13:20:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.37  124.34    0.39      0.15    0.14    2.95  5.37  67.4 PNG
   20250329 14:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.44  124.34    0.39      0.15    0.14    2.95  4.98  67.4 PNG
   20250329 14:20:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.47  124.34    0.39      0.15    0.14    2.95  4.81  67.4 PNG
   20250329 15:00:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.54  124.34    0.39      0.15    0.14    2.95  4.48  67.4 PNG
   20250329 15:20:00     AMSR2    89GHz  -18.05  123.92  45.0   -19.57  124.34    0.39      0.15    0.14    2.95  4.33  67.4 PNG
   20250329 15:50:00  HIMAWARI     SWIR  -19.06  123.94  30.0   -19.73  124.52    0.79      0.05     N/A    0.74  6.02   0.0 PNG
   20250329 16:20:00  HIMAWARI       IR  -19.10  123.93  30.0   -20.00  124.51    0.62      0.05    0.22    0.98  7.64   0.7 PNG
   20250329 16:50:00  HIMAWARI       IR  -19.13  123.92  30.0   -20.13  124.56    0.46      0.20    0.16    1.25 10.27   1.4 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