Tropical Depression 20N_08


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.0
 

                                         -------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    .
   20201202 03:45:00  METEOSAT       IR    8.21  -82.65  40.0     6.39  -83.30     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20201202 04:15:00  METEOSAT   NearIR    8.25  -82.56  40.0     6.67  -83.34     0.53      1.49   0.05    0.41  3.18  40.2 GIF
   20201202 04:30:00  METEOSAT       IR    8.27  -82.51  40.0     6.67  -83.32     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20201202 05:00:00  METEOSAT       IR    8.32  -82.42  40.0     6.69  -83.23     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20201202 05:30:00  METEOSAT       IR    8.37  -82.33  40.0     6.74  -83.17     0.21      0.58   0.10    1.04  8.18 100.0 GIF
   20201202 06:15:00  METEOSAT       IR    8.45  -82.19  40.0     6.77  -83.05     0.39      1.11   0.10    0.64  4.29  76.9 GIF
   20201202 06:45:00  METEOSAT   NearIR    8.50  -82.10  40.0     7.05  -82.33     0.83      2.35   0.15    0.27  2.02  19.0 GIF
   20201202 07:15:00  METEOSAT       IR    8.56  -82.01  40.0     6.78  -81.98     0.48      1.34   0.05    0.57  3.53  81.6 GIF
   20201202 07:45:00  METEOSAT       IR    8.62  -81.92  40.0     7.59  -83.18     1.10      3.11   0.25    0.36  1.52  60.9 GIF
   20201202 08:15:00  METEOSAT   NearIR    8.67  -81.83  40.0     7.47  -83.19     1.49      4.22   0.20    0.17  1.13  12.6 GIF
   20201202 08:30:00  METEOSAT   NearIR    8.70  -81.78  40.0     7.42  -83.12     0.85      2.40   0.20    0.27  1.98  16.5 GIF
   20201202 09:15:00  METEOSAT       IR    8.78  -81.65  40.0     7.58  -83.21     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20201202 09:45:00  METEOSAT   NearIR    8.89  -81.68  45.0     7.84  -82.56     0.79      2.24   0.30    0.29  2.12  12.8 GIF
   20201202 10:00:00  METEOSAT   NearIR    8.91  -81.63  45.0     7.78  -82.46     0.72      2.04   0.30    0.31  2.32  19.9 GIF
   20201202 10:45:00  METEOSAT   NearIR    8.95  -81.48  45.0     7.65  -82.16     3.36      9.49   0.25    0.06  0.50   2.2 GIF
   20201202 11:15:00  METEOSAT       IR    8.97  -81.38  45.0     7.60  -81.59     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20201202 11:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.94   0.0 GIF
   20201202 12:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.90   0.0 GIF
   20201202 12:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.85   0.0 GIF
   20201202 13:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.78   0.0 GIF
   20201202 13:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.71   0.0 GIF
   20201202 14:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.63   0.0 GIF
   20201202 14:45:00  METEOSAT       IR    9.05  -80.76  45.0     7.55  -80.10     0.23      0.66   0.25    0.94  7.22  98.4 GIF
   20201202 15:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.45   0.0 GIF
   20201202 15:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.37   0.0 GIF
   20201202 16:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.28   0.0 GIF
   20201202 17:00:00  METEOSAT       IR    8.95  -81.14  45.0    10.10  -81.70     0.41      1.16   0.15    0.62  4.08  85.0 GIF
   20201202 17:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.10   0.0 GIF
   20201202 17:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  3.01   0.0 GIF
   20201202 18:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.93   0.0 GIF
   20201202 18:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.84   0.0 GIF
   20201202 19:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.76   0.0 GIF
   20201202 20:00:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.64   0.0 GIF
   20201202 20:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.60   0.0 GIF
   20201202 21:00:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.49   0.0 GIF
   20201202 21:15:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.45   0.0 GIF
   20201202 21:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.38   0.0 GIF
   20201202 22:00:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.35   0.0 GIF
   20201202 22:45:00    SSMI16 85-92GHz    8.99  -81.32  45.0   -79.75 -105.22     0.43      1.21    N/A    0.40  2.25   0.0 GIF
   20201202 23:15:00  METEOSAT       IR    9.65  -80.73  45.0     9.25  -80.42     0.68      1.93   0.10    0.46  2.45  45.1 GIF
   20201202 23:45:00  METEOSAT       IR    9.62  -80.64  45.0     9.07  -80.26     0.45      1.27   0.05    0.59  3.73  49.0 GIF
   20201203 00:15:00  METEOSAT   NearIR    9.58  -80.55  45.0     9.18  -80.20     0.53      1.50   0.05    0.41  3.17  42.2 GIF
   20201203 01:00:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  6.22   0.0 GIF
   20201203 01:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  6.17   0.0 GIF
   20201203 01:45:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  6.05   0.0 GIF
   20201203 02:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  5.90   0.0 GIF
   20201203 03:00:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  5.64   0.0 GIF
   20201203 03:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  5.55   0.0 GIF
   20201203 04:00:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  5.26   0.0 GIF
   20201203 04:00:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  5.26   0.0 GIF
   20201203 05:00:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.88   0.0 GIF
   20201203 05:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.79   0.0 GIF
   20201203 05:45:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.60   0.0 GIF
   20201203 06:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.42   0.0 GIF
   20201203 06:45:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.25   0.0 GIF
   20201203 07:15:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  4.08   0.0 GIF
   20201203 07:45:00    SSMI18 85-92GHz    9.53  -80.45  45.0   -79.83  122.50     0.27      0.76    N/A    1.10  3.92   0.0 GIF
   20201203 08:15:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.49   0.0 GIF
   20201203 08:45:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.43   0.0 GIF
   20201203 09:15:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.34   0.0 GIF
   20201203 09:30:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.30   0.0 GIF
   20201203 10:15:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.15   0.0 GIF
   20201203 10:45:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  4.04   0.0 GIF
   20201203 11:00:00     AMSR2 85-92GHz    9.34  -79.27  40.0   -79.88 -103.07     0.37      1.04    N/A    0.58  3.98   0.0 GIF
   20201203 12:00:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.78   0.0 GIF
   20201203 12:00:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.78   0.0 GIF
   20201203 12:30:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.72   0.0 GIF
   20201203 13:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.63   0.0 GIF
   20201203 13:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.56   0.0 GIF
   20201203 14:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.48   0.0 GIF
   20201203 14:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.40   0.0 GIF
   20201203 15:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.32   0.0 GIF
   20201203 15:45:00  METEOSAT   NearIR    9.09  -78.54  40.0     8.67  -77.98     0.45      1.28   0.10    0.47  3.71  43.7 GIF
   20201203 16:15:00  METEOSAT       IR    9.08  -78.48  40.0     8.63  -77.82     0.30      0.85   0.05    0.77  5.57  73.0 GIF
   20201203 16:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  3.07   0.0 GIF
   20201203 17:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.98   0.0 GIF
   20201203 18:00:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.86   0.0 GIF
   20201203 18:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.82   0.0 GIF
   20201203 18:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.74   0.0 GIF
   20201203 19:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.66   0.0 GIF
   20201203 19:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.59   0.0 GIF
   20201203 20:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.51   0.0 GIF
   20201203 20:45:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.44   0.0 GIF
   20201203 21:15:00    SSMI16 85-92GHz    9.11  -79.14  40.0   -79.90 -102.78     0.44      1.25    N/A    0.36  2.37   0.0 GIF
   20201203 21:45:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.74   0.0 GIF
   20201203 22:15:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.62   0.0 GIF
   20201203 22:45:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.50   0.0 GIF
   20201203 23:15:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.37   0.0 GIF
   20201204 00:00:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.17   0.0 GIF
   20201204 00:15:00     AMSR2 85-92GHz    8.86  -78.22  30.0   -79.92 -102.38     0.34      0.95    N/A    0.73  4.10   0.0 GIF
   20201204 01:00:00    SSMI18 85-92GHz    8.51  -77.95  30.0   -79.95 -102.02     0.27      0.77    N/A    1.07  6.09   0.0 GIF
   20201204 01:15:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  6.65   0.0 GIF
   20201204 01:45:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  6.50   0.0 GIF
   20201204 02:15:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  6.32   0.0 GIF
   20201204 02:45:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  6.12   0.0 GIF
   20201204 03:15:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  5.92   0.0 GIF
   20201204 03:45:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  5.70   0.0 GIF
   20201204 04:15:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  5.48   0.0 GIF
   20201204 04:45:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  5.27   0.0 GIF
   20201204 05:15:00    SSMI16 85-92GHz    8.50  -77.94  30.0   -79.95 -101.96     0.25      0.70    N/A    1.25  5.05   0.0 GIF
 
 
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