Tropical Depression 02A


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    .
   20200602 20:45:00  METEOSAT       IR   17.27  -71.98  40.0    16.90  -72.27     0.18      0.49   0.05    1.18  9.59 100.0 GIF
   20200602 21:15:00  METEOSAT   NearIR   17.33  -72.02  40.0    17.23  -72.31     0.23      0.66   0.10    0.87  7.17  77.0 GIF
   20200602 21:45:00  METEOSAT       IR   17.38  -72.07  40.0    17.18  -72.17     0.30      0.85   0.10    0.78  5.60  98.5 GIF
   20200602 22:15:00  METEOSAT   NearIR   17.44  -72.11  40.0    17.41  -72.68     0.25      0.71   0.10    0.81  6.68  68.6 GIF
   20200602 22:45:00  METEOSAT       IR   17.49  -72.15  40.0    17.42  -72.23     0.22      0.62   0.10    0.98  7.62 100.0 GIF
   20200602 23:15:00  METEOSAT       IR   17.55  -72.19  40.0    17.37  -72.29     0.12      0.35   0.15    1.58 13.55 100.0 GIF
   20200602 23:45:00  METEOSAT   NearIR   17.61  -72.23  40.0    17.46  -72.59     0.20      0.58   0.10    0.99  8.25  70.8 GIF
   20200603 00:15:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.57  -72.36     0.23      0.65    N/A    1.44  5.91   0.0 GIF
   20200603 00:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.63  -72.40     0.23      0.65    N/A    1.44  5.66   0.0 GIF
   20200603 01:15:00  METEOSAT       IR   17.37  -72.22  55.0    17.97  -72.07     0.28      0.79   0.05    0.82  5.99  89.3 GIF
   20200603 01:45:00  METEOSAT       IR   17.43  -72.27  55.0    17.61  -72.25     0.28      0.79   0.05    0.81  5.98 100.0 GIF
   20200603 02:15:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.40  -72.42     0.23      0.65    N/A    1.44  4.96   0.0 GIF
   20200603 02:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.47  -72.47     0.23      0.65    N/A    1.44  4.74   0.0 GIF
   20200603 03:15:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.53  -72.52     0.23      0.65    N/A    1.44  4.53   0.0 GIF
   20200603 03:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    17.60  -72.57     0.23      0.65    N/A    1.44  4.34   0.0 GIF
   20200603 04:15:00  METEOSAT       IR   17.77  -72.53  55.0    17.92  -72.74     0.18      0.50   0.05    1.17  9.52 100.0 GIF
   20200603 04:45:00  METEOSAT       IR   17.83  -72.58  55.0    17.91  -72.76     0.27      0.75   0.05    0.85  6.31  98.3 GIF
   20200603 05:15:00  METEOSAT   NearIR   17.90  -72.63  55.0    18.15  -73.18     0.24      0.68   0.10    0.85  6.99  66.9 GIF
   20200603 05:45:00  METEOSAT       IR   17.97  -72.68  55.0    18.19  -73.18     0.22      0.62   0.05    0.99  7.70 100.0 GIF
   20200603 06:15:00  METEOSAT       IR   18.03  -72.74  55.0    18.31  -72.84     0.28      0.79   0.20    0.81  5.98  96.3 GIF
   20200603 06:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    18.00  -72.89     0.23      0.65    N/A    1.44  3.36   0.0 GIF
   20200603 07:15:00  METEOSAT       IR   18.07  -73.07  75.0    18.49  -73.09     0.17      0.49   0.10    0.98  9.68  98.0 GIF
   20200603 07:45:00  METEOSAT       IR   18.13  -73.13  75.0    18.53  -73.08     0.26      0.74   0.10    0.64  6.45  72.8 GIF
   20200603 08:15:00  METEOSAT   NearIR   18.20  -73.20  75.0    18.50  -73.41     0.22      0.61   0.10    0.67  7.73  53.2 GIF
   20200603 08:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    18.19  -73.35     0.23      0.65    N/A    1.44  3.20   0.0 GIF
   20200603 09:15:00  METEOSAT   NearIR   18.33  -73.33  75.0    18.66  -73.44     0.30      0.85   0.05    0.49  5.58  49.9 GIF
   20200603 09:45:00     AMSR2 85-92GHz   17.28  -71.98  40.0    18.30  -73.50     0.23      0.65    N/A    1.44  2.95   0.0 GIF
   20200603 10:15:00  METEOSAT   NearIR   18.46  -73.46  75.0    19.89  -72.91     0.37      1.06   0.30    0.40  4.50  40.2 GIF
   20200603 10:45:00  METEOSAT   NearIR   18.53  -73.53  75.0    20.01  -72.95     0.45      1.26   0.25    0.34  3.77  29.8 GIF
   20200603 11:15:00  METEOSAT   NearIR   18.60  -73.60  75.0    20.27  -73.02     0.53      1.49   0.15    0.29  3.18  14.3 GIF
   20200603 11:45:00  METEOSAT       IR   18.66  -73.66  75.0    19.69  -72.26     0.40      1.12   0.20    0.41  4.23  61.1 GIF
   20200603 12:15:00  METEOSAT       IR   18.73  -73.73  75.0    19.90  -72.17     0.19      0.53   0.05    0.91  8.96  82.4 GIF
   20200603 12:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    19.14  -73.37     0.24      0.67    N/A    0.11  6.91   0.0 GIF
   20200603 13:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    19.66  -73.48     0.24      0.67    N/A    0.11  4.22   0.0 GIF
   20200603 13:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    19.75  -73.56     0.24      0.67    N/A    0.11  4.14   0.0 GIF
   20200603 14:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    19.83  -73.65     0.24      0.67    N/A    0.11  4.05   0.0 GIF
   20200603 14:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    19.91  -73.73     0.24      0.67    N/A    0.11  3.96   0.0 GIF
   20200603 15:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.00  -73.82     0.24      0.67    N/A    0.11  3.86   0.0 GIF
   20200603 15:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.08  -73.89     0.24      0.67    N/A    0.11  3.75   0.0 GIF
   20200603 16:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.16  -73.99     0.24      0.67    N/A    0.11  3.65   0.0 GIF
   20200603 16:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.24  -74.07     0.24      0.67    N/A    0.11  3.54   0.0 GIF
   20200603 17:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.32  -74.16     0.24      0.67    N/A    0.11  3.44   0.0 GIF
   20200603 17:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.40  -74.25     0.24      0.67    N/A    0.11  3.34   0.0 GIF
   20200603 18:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.49  -74.32     0.24      0.67    N/A    0.11  3.24   0.0 GIF
   20200603 18:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.56  -74.41     0.24      0.67    N/A    0.11  3.14   0.0 GIF
   20200603 19:15:00  METEOSAT   NearIR   20.28  -74.94  65.0    21.90  -74.14     0.43      1.21   0.10    0.44  3.93   7.5 GIF
   20200603 19:45:00  METEOSAT   NearIR   20.36  -75.02  65.0    21.83  -74.30     0.47      1.32   0.50    0.40  3.59   2.9 GIF
   20200603 20:15:00  METEOSAT   NearIR   20.43  -75.11  65.0    21.98  -74.45     0.32      0.91   0.50    0.57  5.21   3.6 GIF
   20200603 20:45:00  METEOSAT       IR   20.51  -75.20  65.0    21.51  -74.62     0.61      1.71   0.15    0.41  2.77  60.3 GIF
   20200603 21:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    20.94  -74.87     0.24      0.67    N/A    0.11  2.68   0.0 GIF
   20200603 21:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.03  -74.95     0.24      0.67    N/A    0.11  2.60   0.0 GIF
   20200603 22:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.09  -75.06     0.24      0.67    N/A    0.11  2.52   0.0 GIF
   20200603 22:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.18  -75.14     0.24      0.67    N/A    0.11  2.44   0.0 GIF
   20200603 23:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.27  -75.21     0.24      0.67    N/A    0.11  2.37   0.0 GIF
   20200603 23:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.32  -75.33     0.24      0.67    N/A    0.11  2.30   0.0 GIF
   20200604 00:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.41  -75.41     0.24      0.67    N/A    0.11  2.23   0.0 GIF
   20200604 00:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.49  -75.49     0.24      0.67    N/A    0.11  2.16   0.0 GIF
   20200604 01:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.54  -75.62     0.24      0.67    N/A    0.11  2.10   0.0 GIF
   20200604 01:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.62  -75.70     0.24      0.67    N/A    0.11  2.04   0.0 GIF
   20200604 02:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.71  -75.78     0.24      0.67    N/A    0.11  1.98   0.0 GIF
   20200604 02:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.79  -75.86     0.24      0.67    N/A    0.11  1.93   0.0 GIF
   20200604 03:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.83  -76.00     0.24      0.67    N/A    0.11  1.87   0.0 GIF
   20200604 03:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    21.92  -76.08     0.24      0.67    N/A    0.11  1.82   0.0 GIF
   20200604 04:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.00  -76.17     0.24      0.67    N/A    0.11  1.77   0.0 GIF
   20200604 04:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.09  -76.25     0.24      0.67    N/A    0.11  1.72   0.0 GIF
   20200604 05:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.12  -76.39     0.24      0.67    N/A    0.11  1.68   0.0 GIF
   20200604 05:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.20  -76.48     0.24      0.67    N/A    0.11  1.63   0.0 GIF
   20200604 06:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.28  -76.57     0.24      0.67    N/A    0.11  1.59   0.0 GIF
   20200604 06:45:00  METEOSAT       IR   21.97  -77.11  65.0    22.85  -77.08     0.74      2.09   0.10    0.36  2.27  51.7 GIF
   20200604 07:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.45  -76.74     0.24      0.67    N/A    0.11  1.51   0.0 GIF
   20200604 07:45:00  METEOSAT       IR   22.11  -77.31  65.0    23.11  -76.96     0.78      2.20   0.45    0.35  2.15  60.9 GIF
   20200604 08:15:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.56  -76.98     0.24      0.67    N/A    0.11  1.44   0.0 GIF
   20200604 08:45:00    SSMI15 85-92GHz   18.70  -73.70  75.0    22.64  -77.07     0.24      0.67    N/A    0.11  1.40   0.0 GIF
   20200604 09:15:00     AMSR2 85-92GHz   22.20  -77.44  65.0    22.02  -78.11     0.36      1.01    N/A    0.23  4.61   0.0 GIF
   20200604 09:45:00     AMSR2 85-92GHz   22.20  -77.44  65.0    22.10  -78.21     0.36      1.01    N/A    0.23  4.52   0.0 GIF
   20200604 10:15:00     AMSR2 85-92GHz   22.20  -77.44  65.0    22.16  -78.32     0.36      1.01    N/A    0.23  4.43   0.0 GIF
   20200604 10:45:00     AMSR2 85-92GHz   22.20  -77.44  65.0    22.23  -78.42     0.36      1.01    N/A    0.23  4.32   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