Tropical Depression 11L


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    .
   20190917 18:00:18    GOES16      Vis   28.80   95.38  30.0    28.88   95.58     3.36      9.49   0.05    0.01  0.50   1.5 GIF
   20190917 18:30:18    GOES16      Vis   28.85   95.37  30.0    28.78   95.66     2.07      5.85   0.05    0.11  0.81  45.7 GIF
   20190917 18:50:18    GOES16      Vis   28.89   95.37  30.0    28.79   95.51     3.36      9.49   0.05    0.09  0.50  39.2 GIF
   20190917 19:20:18    GOES16      Vis   28.94   95.37  30.0    28.81   95.60     0.61      1.73   0.05    0.25  2.75  63.9 GIF
   20190917 19:50:18    GOES16      Vis   28.99   95.37  30.0    28.84   95.59     0.54      1.54   0.05    0.27  3.08  54.3 GIF
   20190917 20:20:18    GOES16      Vis   29.04   95.37  30.0    29.04   95.62     0.31      0.87   0.10    0.43  5.42  68.1 GIF
   20190917 21:00:18    GOES16      Vis   29.30   95.30  35.0    29.20   95.53     0.33      0.93   0.05    0.41  5.08  58.4 GIF
   20190917 21:20:18    GOES16       IR   29.33   95.30  35.0    29.11   95.56     0.25      0.71   0.05    0.89  6.72 100.0 GIF
   20190917 21:50:18    GOES16       IR   29.38   95.29  35.0    29.36   95.24     0.37      1.05   0.10    0.67  4.54  98.8 GIF
   20190917 22:20:18     AMSR2 85-92GHz   29.17   95.31  35.0    29.44   95.30     0.39      1.09    N/A    0.52  3.95   0.0 GIF
   20190917 22:50:18     AMSR2 85-92GHz   29.17   95.31  35.0    29.49   95.30     0.39      1.09    N/A    0.52  3.85   0.0 GIF
   20190917 23:20:18    GOES16       IR   29.53   95.28  35.0    29.40   95.54     0.38      1.08   0.05    0.66  4.41  82.6 GIF
   20190918 00:00:18     AMSR2 85-92GHz   29.17   95.31  35.0    29.60   95.28     0.39      1.09    N/A    0.52  3.61   0.0 GIF
   20190918 00:20:18     AMSR2 85-92GHz   29.17   95.31  35.0    29.62   95.27     0.39      1.09    N/A    0.52  3.54   0.0 GIF
   20190918 01:00:18    GOES16   NearIR   29.68   95.26  35.0    29.41   95.57     0.31      0.88   0.05    0.67  5.41  83.4 GIF
   20190918 01:30:18    GOES16   NearIR   29.73   95.25  35.0    29.53   95.48     0.28      0.79   0.05    0.74  6.02  88.1 GIF
   20190918 02:00:18    GOES16   NearIR   29.77   95.24  35.0    29.60   95.44     0.22      0.62   0.05    0.93  7.70 100.0 GIF
   20190918 02:30:18    GOES16   NearIR   29.81   95.24  35.0    29.69   95.41     0.35      0.99   0.05    0.60  4.81  96.0 GIF
   20190918 02:50:18    GOES16   NearIR   29.79   95.50  30.0    29.74   95.38     0.31      0.88   0.05    0.66  5.39  96.0 GIF
   20190918 03:30:18    GOES16   NearIR   29.84   95.50  30.0    29.41   95.50     0.23      0.64   0.10    0.90  7.41  98.6 GIF
   20190918 03:50:18    GOES16   NearIR   29.86   95.50  30.0    29.29   95.47     0.48      1.37   0.30    0.44  3.47  67.9 GIF
   20190918 04:20:18    GOES16       IR   29.90   95.50  30.0    29.40   95.38     0.35      0.98   0.25    0.70  4.82  85.6 GIF
   20190918 04:50:19    GOES16       IR   29.94   95.50  30.0    29.46   95.30     0.22      0.61   0.25    0.99  7.74 100.0 GIF
   20190918 05:20:19    GOES16       IR   29.98   95.50  30.0    29.45   95.04     0.19      0.54   0.15    1.10  8.76 100.0 GIF
   20190918 06:00:19    GOES16   NearIR   30.03   95.50  30.0    29.58   95.13     0.18      0.51   0.05    1.11  9.25 100.0 GIF
   20190918 06:20:19    GOES16       IR   30.06   95.50  30.0    29.73   95.24     0.59      1.68   0.15    0.50  2.83  78.1 GIF
   20190918 06:50:19    GOES16   NearIR   30.10   95.50  30.0    29.82   95.18     0.50      1.40   0.15    0.43  3.38  76.4 GIF
   20190918 07:20:19    GOES16       IR   30.14   95.50  30.0    29.69   95.36     0.51      1.43   0.10    0.55  3.32  77.0 GIF
   20190918 07:50:19    GOES16   NearIR   30.18   95.50  30.0    30.28   95.36     0.53      1.49   0.05    0.41  3.18  68.3 GIF
   20190918 08:20:19    GOES16   NearIR   30.22   95.50  30.0    30.07   95.27     0.29      0.82   0.05    0.71  5.78  82.4 GIF
   20190918 08:50:19       GMI 85-92GHz   30.18   95.50  30.0    30.26   95.50     0.62      1.75    N/A    0.03  2.69   0.0 GIF
   20190918 09:20:19       GMI 85-92GHz   30.18   95.50  30.0    30.30   95.51     0.62      1.75    N/A    0.03  2.66   0.0 GIF
   20190918 09:50:19       GMI 85-92GHz   30.18   95.50  30.0    30.34   95.51     0.62      1.75    N/A    0.03  2.63   0.0 GIF
   20190918 10:20:19       GMI 85-92GHz   30.18   95.50  30.0    30.38   95.51     0.62      1.75    N/A    0.03  2.59   0.0 GIF
   20190918 10:50:19       GMI 85-92GHz   30.18   95.50  30.0    30.41   95.51     0.62      1.75    N/A    0.03  2.55   0.0 GIF
   20190918 11:20:19       GMI 85-92GHz   30.18   95.50  30.0    30.45   95.50     0.62      1.75    N/A    0.03  2.50   0.0 GIF
   20190918 12:00:19       GMI 85-92GHz   30.18   95.50  30.0    30.50   95.51     0.62      1.75    N/A    0.03  2.44   0.0 GIF
   20190918 12:30:19       GMI 85-92GHz   30.18   95.50  30.0    30.54   95.51     0.62      1.75    N/A    0.03  2.40   0.0 GIF
   20190918 12:50:19       GMI 85-92GHz   30.18   95.50  30.0    30.56   95.51     0.62      1.75    N/A    0.03  2.36   0.0 GIF
   20190918 13:20:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.60   95.50     0.47      1.32    N/A    0.30  3.61   0.0 GIF
   20190918 13:50:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.63   95.50     0.47      1.32    N/A    0.30  3.59   0.0 GIF
   20190918 14:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.68   95.50     0.47      1.32    N/A    0.30  3.53   0.0 GIF
   20190918 15:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.72   95.50     0.47      1.32    N/A    0.30  3.47   0.0 GIF
   20190918 15:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.75   95.50     0.47      1.32    N/A    0.30  3.41   0.0 GIF
   20190918 16:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.78   95.50     0.47      1.32    N/A    0.30  3.34   0.0 GIF
   20190918 16:30:19    GOES16      Vis   30.81   95.50  30.0    31.16   95.85     0.48      1.36   0.25    0.30  3.49  60.7 GIF
   20190918 17:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.85   95.50     0.47      1.32    N/A    0.30  3.19   0.0 GIF
   20190918 17:30:19    GOES16      Vis   30.87   95.50  30.0    31.17   95.70     0.46      1.30   0.05    0.31  3.66  69.1 GIF
   20190918 18:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.90   95.50     0.47      1.32    N/A    0.30  3.04   0.0 GIF
   20190918 18:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.93   95.50     0.47      1.32    N/A    0.30  2.96   0.0 GIF
   20190918 19:00:19    GOES16      Vis   30.96   95.50  30.0    31.01   95.64     0.41      1.17   0.40    0.34  4.06  70.2 GIF
   20190918 19:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    30.99   95.50     0.47      1.32    N/A    0.30  2.81   0.0 GIF
   20190918 20:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.02   95.50     0.47      1.32    N/A    0.30  2.73   0.0 GIF
   20190918 20:30:19    GOES16      Vis   31.04   95.50  30.0    30.94   96.05     0.50      1.42   0.10    0.29  3.34  63.9 GIF
   20190918 21:00:19    GOES16      Vis   31.06   95.50  30.0    30.89   95.99     0.57      1.62   0.15    0.26  2.93  57.9 GIF
   20190918 21:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.09   95.51     0.47      1.32    N/A    0.30  2.52   0.0 GIF
   20190918 22:00:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.12   95.51     0.47      1.32    N/A    0.30  2.45   0.0 GIF
   20190918 22:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.14   95.51     0.47      1.32    N/A    0.30  2.38   0.0 GIF
   20190918 23:10:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.17   95.50     0.47      1.32    N/A    0.30  2.29   0.0 GIF
   20190918 23:30:19    SSMI18 85-92GHz   30.59   95.50  30.0    31.19   95.51     0.47      1.32    N/A    0.30  2.25   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