Tropical Depression 15S


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    .
   20260120 20:00:00  METEOSAT       IR  -25.43   41.80  40.0   -25.58   41.64    0.55      0.15    0.20    1.08  8.58  12.0 PNG
   20260120 20:30:00  METEOSAT       IR  -25.40   41.90  40.0   -25.62   41.74    0.44      0.25    0.15    1.31 10.90  16.3 PNG
   20260120 21:00:00  METEOSAT       IR  -25.37   42.00  40.0   -25.72   41.98    0.45      0.20    0.16    1.27 10.53   9.9 PNG
   20260120 21:30:00  METEOSAT       IR  -25.33   42.10  40.0   -25.76   42.16    0.51      0.35    0.18    1.15  9.28   6.5 PNG
   20260120 22:00:00  METEOSAT       IR  -25.30   42.20  40.0   -25.70   42.26    0.59      0.35    0.21    1.02  8.05   5.1 PNG
   20260120 22:30:00  METEOSAT       IR  -25.27   42.30  40.0   -25.82   42.52    0.52      0.25    0.18    1.13  9.08   5.2 PNG
   20260120 23:00:00  METEOSAT       IR  -25.23   42.40  50.0   -25.83   42.74    0.49      0.25    0.17    1.20  9.77  10.6 PNG
   20260120 23:30:00  METEOSAT       IR  -24.74   42.60  50.0   -25.91   42.96    0.86      0.05    0.30    0.77  5.51   6.0 PNG
   20260121 00:00:00  METEOSAT       IR  -24.71   42.69  50.0   -25.96   43.10    0.80      0.45    0.28    0.81  5.96   3.6 PNG
   20260121 00:30:00  METEOSAT       IR  -24.65   42.61  50.0   -25.85   43.38    0.93      0.20    0.33    0.72  5.09   3.5 PNG
   20260121 01:45:00  METEOSAT       IR  -24.60   42.80  50.0   -25.80   43.73    0.78      0.35    0.27    0.83  6.11   1.9 PNG
   20260121 02:00:00  METEOSAT     SWIR  -24.57   42.89  50.0   -25.60   43.99    0.87      0.10     N/A    0.67  5.44   0.0 PNG
   20260121 02:30:00  METEOSAT       IR  -24.54   42.99  50.0   -25.39   44.20    0.60      0.25    0.21    1.00  7.86   3.0 PNG
   20260121 03:00:00  METEOSAT       IR  -24.52   43.09  50.0   -25.32   44.47    0.62      0.15    0.22    0.98  7.65   4.3 PNG
   20260121 03:30:00  METEOSAT     SWIR  -24.49   43.19  50.0   -25.14   44.73    1.10      0.05     N/A    0.54  4.32   0.0 PNG
   20260121 04:00:00  METEOSAT       IR  -24.47   43.29  50.0   -25.12   44.83    1.13      0.20    0.40    0.63  4.18   2.4 PNG
   20260121 04:30:00  METEOSAT      Vis  -24.45   43.39  50.0   -25.05   45.48    0.64      0.20     N/A    0.57  7.38   0.0 PNG
   20260121 05:15:00  METEOSAT       IR  -24.42   43.50  50.0   -25.47   44.98    2.28      0.45     N/A    0.42  2.08   0.0 PNG
   20260121 05:30:00  METEOSAT      Vis  -24.40   43.61  50.0   -25.30   45.55    0.74      0.20     N/A    0.50  6.44   0.0 PNG
   20260121 06:00:00  METEOSAT       IR  -24.37   43.70  50.0   -25.35   45.19    0.75      0.10    0.26    0.85  6.36  15.1 PNG
   20260121 06:30:00  METEOSAT       IR  -24.35   43.81  50.0   -25.15   45.37    0.73      0.15    0.26    0.87  6.50   0.2 PNG
   20260121 07:15:00  METEOSAT       IR  -24.32   43.89  50.0   -25.17   45.65    1.27      0.05     N/A    0.59  3.74   0.0 PNG
   20260121 07:30:00  METEOSAT       IR  -24.10   43.60  50.0   -25.22   45.41    0.74      0.45    0.26    0.85  6.37  11.2 PNG
   20260121 08:00:00  METEOSAT     SWIR  -24.05   43.65  45.0   -25.25   45.40    1.12      0.35     N/A    0.53  4.23   0.0 PNG
   20260121 08:30:00  METEOSAT      Vis  -24.00   43.70  45.0   -22.62   45.29    1.33      0.10     N/A    0.31  3.58   0.0 PNG
   20260121 09:00:00  METEOSAT     SWIR  -23.95   43.75  45.0   -24.00   43.89    2.64      0.05     N/A    0.25  1.80   0.0 PNG
   20260121 09:30:00  METEOSAT      Vis  -23.90   43.80  45.0   -22.53   45.39    0.73      0.05     N/A    0.51  6.48   0.0 PNG
   20260121 10:00:00  METEOSAT      Vis  -23.85   43.85  45.0   -22.38   45.33    1.08      0.05     N/A    0.36  4.40   0.0 PNG
   20260121 10:30:00  METEOSAT      Vis  -23.81   43.90  45.0   -22.81   45.79    0.78      0.35     N/A    0.48  6.10   0.0 PNG
   20260121 11:00:00  METEOSAT      Vis  -23.76   43.95  45.0   -22.81   45.86    0.72      0.45     N/A    0.52  6.61   0.0 PNG
   20260121 11:30:00  METEOSAT      Vis  -23.72   44.00  45.0   -22.82   45.94    2.96      0.30     N/A    0.17  1.60   0.0 PNG
   20260121 12:00:00  METEOSAT      Vis  -23.68   44.05  45.0   -23.68   44.22    1.57      0.05     N/A    0.27  3.01   0.0 PNG
   20260121 12:30:00  METEOSAT      Vis  -23.64   44.10  45.0   -22.64   45.98    1.35      0.20     N/A    0.30  3.51   0.0 PNG
   20260121 13:00:00  METEOSAT      Vis  -23.60   44.15  35.0   -22.30   45.79    1.28      0.50     N/A    0.31  3.71   0.0 PNG
   20260121 13:30:00  METEOSAT      Vis  -23.70   44.23  35.0   -22.80   46.17    0.81      0.25     N/A    0.46  5.84   0.0 PNG
   20260121 14:00:00  METEOSAT     SWIR  -23.65   44.27  35.0   -22.35   45.00    6.62      0.05     N/A    0.13  0.72   0.0 PNG
   20260121 14:30:00  METEOSAT     SWIR  -23.60   44.30  35.0   -22.00   45.45    1.82      0.25     N/A    0.34  2.61   0.0 PNG
   20260121 15:00:00  METEOSAT     SWIR  -23.55   44.33  35.0   -21.85   45.42    3.50      0.25     N/A    0.20  1.35   0.0 PNG
   20260121 15:30:00  METEOSAT     SWIR  -23.50   44.37  35.0   -21.83   45.54    3.95      0.05     N/A    0.18  1.20   0.0 PNG
   20260121 16:00:00  METEOSAT       IR  -23.45   44.40  35.0   -21.78   45.57    5.22      0.20    1.85    0.30  0.91  10.3 PNG
   20260121 16:30:00  METEOSAT       IR  -23.41   44.43  35.0   -21.74   45.60    1.49      0.10    0.53    0.53  3.19  38.0 PNG
   20260121 17:00:00  METEOSAT     SWIR  -23.36   44.46  35.0   -21.71   45.69    1.46      0.20     N/A    0.42  3.25   0.0 PNG
   20260121 17:30:00  METEOSAT     SWIR  -23.32   44.49  35.0   -21.52   45.42    3.14      0.20     N/A    0.22  1.51   0.0 PNG
   20260121 18:00:00  METEOSAT     SWIR  -23.28   44.52  35.0   -21.48   45.34    2.50      0.15     N/A    0.26  1.90   0.0 PNG
   20260121 18:30:00  METEOSAT     SWIR  -23.24   44.55  35.0   -21.46   45.53    1.89      0.35     N/A    0.33  2.52   0.0 PNG
   20260121 19:00:00  METEOSAT       IR  -23.20   44.58  25.0   -22.40   46.56    9.49      0.10    3.36    0.25  0.50   3.3 PNG
   20260121 19:45:00  METEOSAT       IR  -23.16   44.60  25.0   -22.36   46.59    2.52      0.45    0.89    0.40  1.88   3.7 PNG
   20260121 20:00:00  METEOSAT       IR  -23.12   44.63  25.0   -22.27   46.59    9.49      0.40    3.36    0.23  0.50   2.0 PNG
   20260121 20:30:00  METEOSAT     SWIR  -23.09   44.66  25.0   -21.24   45.47    7.84      0.50     N/A    0.11  0.60   0.0 PNG
   20260121 21:00:00  METEOSAT       IR  -23.05   44.68  25.0   -22.20   46.64    1.57      0.35    0.55    0.52  3.02   7.7 PNG
   20260121 21:30:00  METEOSAT       IR  -23.02   44.71  25.0   -22.12   46.64    1.02      0.20    0.36    0.68  4.66  31.0 PNG
   20260121 22:00:00  METEOSAT       IR  -22.99   44.73  25.0   -21.94   46.58    2.58      0.15    0.91    0.40  1.84  11.3 PNG
   20260121 22:30:00  METEOSAT     SWIR  -22.96   44.76  25.0   -21.11   45.57    1.97      0.50     N/A    0.32  2.41   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