Tropical Depression 21E


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    .
   20191116 09:50:27    GOES16       IR    9.19   99.35  30.0     9.64   99.48     3.36      9.49   0.05    0.02  0.50   4.0 GIF
   20191116 10:20:27    GOES16       IR    9.18   99.44  30.0    10.41  100.63     1.08      3.06   0.10    0.37  1.55  66.8 GIF
   20191116 10:50:27    GOES16   NearIR    9.17   99.53  30.0     9.70   99.51     3.07      8.67   0.05    0.11  0.55  35.9 GIF
   20191116 11:20:27    GOES16       IR    9.16   99.63  30.0     8.31   98.39     3.36      9.49   0.05    0.10  0.50  38.4 GIF
   20191116 11:50:27    GOES16       IR    9.15   99.72  30.0     7.68   99.59     3.36      9.49    N/A    0.00  0.50   0.0 GIF
   20191116 12:20:27    GOES16       IR    9.14   99.81  30.0     7.79   99.69     3.36      9.49   0.10    0.16  0.50  48.4 GIF
   20191116 12:50:27    SSMI18 85-92GHz    9.14   99.86  30.0     9.12   99.91     0.64      1.80    N/A    0.00  2.63   0.0 GIF
   20191116 13:20:27    SSMI18 85-92GHz    9.14   99.86  30.0     9.12  100.00     0.64      1.80    N/A    0.00  2.61   0.0 GIF
   20191116 13:50:27    SSMI18 85-92GHz    9.14   99.86  30.0     9.09  100.10     0.64      1.80    N/A    0.00  2.58   0.0 GIF
   20191116 14:20:27    GOES16       IR    9.09  100.18  30.0     7.94  101.39     0.49      1.39   0.05    0.55  3.41  99.1 GIF
   20191116 14:50:27    GOES16      Vis    9.20  100.17  30.0     9.25  100.43     0.57      1.62   0.05    0.26  2.93  47.5 GIF
   20191116 15:20:27    GOES16      Vis    9.20  100.26  30.0     9.20  100.48     0.43      1.22   0.10    0.33  3.88  52.3 GIF
   20191116 15:50:27    GOES16      Vis    9.20  100.34  30.0     9.27  100.54     0.34      0.97   0.10    0.39  4.87  68.7 GIF
   20191116 16:20:27    GOES16      Vis    9.20  100.42  30.0     8.97  100.68     0.38      1.07   0.25    0.36  4.42  65.3 GIF
   20191116 16:50:27    GOES16   NearIR    9.20  100.51  30.0     8.45  100.94     0.38      1.07   0.05    0.55  4.44  81.4 GIF
   20191116 17:20:27    GOES16      Vis    9.19  100.59  30.0     8.92  100.99     0.50      1.42   0.15    0.29  3.35  59.6 GIF
   20191116 17:50:27    GOES16      Vis    9.19  100.67  30.0     8.89  101.10     0.69      1.94   0.05    0.23  2.44  48.3 GIF
   20191116 18:20:27    GOES16      Vis    9.19  100.75  30.0     9.19  101.03     0.58      1.64   0.50    0.26  2.90  49.9 GIF
   20191116 18:50:27    GOES16      Vis    9.19  100.83  30.0     9.17  101.03     0.74      2.08   0.05    0.22  2.28  49.3 GIF
   20191116 19:20:27    GOES16       IR    9.19  100.91  30.0     7.82  101.44     0.39      1.10   0.05    0.64  4.30  99.3 GIF
   20191116 19:50:27    GOES16       IR    9.19  100.99  30.0     7.87  101.27     0.24      0.69   0.10    0.91  6.90 100.0 GIF
   20191116 20:20:27    SSMI18 85-92GHz    9.14   99.86  30.0     9.17  101.07     0.64      1.80    N/A    0.00  2.04   0.0 GIF
   20191116 20:50:27    SSMI18 85-92GHz    9.14   99.86  30.0     9.46  101.00     0.64      1.80    N/A    0.00  1.99   0.0 GIF
   20191116 21:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.51  101.04     0.24      0.67    N/A    1.37  6.73   0.0 GIF
   20191116 21:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.52  101.11     0.24      0.67    N/A    1.37  6.52   0.0 GIF
   20191116 22:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.52  101.19     0.24      0.67    N/A    1.37  6.29   0.0 GIF
   20191116 22:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.53  101.28     0.24      0.67    N/A    1.37  6.05   0.0 GIF
   20191116 23:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.54  101.37     0.24      0.67    N/A    1.37  5.82   0.0 GIF
   20191116 23:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.54  101.47     0.24      0.67    N/A    1.37  5.58   0.0 GIF
   20191117 00:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.54  101.58     0.24      0.67    N/A    1.37  5.35   0.0 GIF
   20191117 00:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.55  101.69     0.24      0.67    N/A    1.37  5.12   0.0 GIF
   20191117 01:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.55  101.80     0.24      0.67    N/A    1.37  4.90   0.0 GIF
   20191117 01:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.56  101.92     0.24      0.67    N/A    1.37  4.69   0.0 GIF
   20191117 02:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.55  102.04     0.24      0.67    N/A    1.37  4.49   0.0 GIF
   20191117 02:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.79  102.38     0.24      0.67    N/A    1.37  4.30   0.0 GIF
   20191117 03:20:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.81  102.45     0.24      0.67    N/A    1.37  4.12   0.0 GIF
   20191117 03:50:27     AMSR2 85-92GHz    9.47  100.91  30.0     9.81  102.52     0.24      0.67    N/A    1.37  3.94   0.0 GIF
   20191117 04:20:27    GOES16   NearIR    9.84  102.58  30.0     9.97  102.74     0.29      0.83   0.05    0.70  5.71  98.5 GIF
   20191117 04:50:28    GOES16       IR    9.86  102.65  30.0     9.89  102.37     0.21      0.61   0.05    1.00  7.84 100.0 GIF
   20191117 05:20:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.87  102.72     0.24      0.67    N/A    1.37  3.48   0.0 GIF
   20191117 05:50:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.88  102.79     0.24      0.67    N/A    1.37  3.34   0.0 GIF
   20191117 06:20:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.91  102.86     0.24      0.67    N/A    1.37  3.21   0.0 GIF
   20191117 06:50:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.91  102.93     0.24      0.67    N/A    1.37  3.08   0.0 GIF
   20191117 07:20:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.92  103.00     0.24      0.67    N/A    1.37  2.97   0.0 GIF
   20191117 07:50:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.96  103.06     0.24      0.67    N/A    1.37  2.86   0.0 GIF
   20191117 08:20:28    GOES16   NearIR    9.98  103.13  30.0    10.00  102.70     0.57      1.60   0.10    0.38  2.96  82.2 GIF
   20191117 08:50:28     AMSR2 85-92GHz    9.47  100.91  30.0     9.99  102.18     0.24      0.67    N/A    1.37  2.65   0.0 GIF
   20191117 09:20:28     AMSR2 85-92GHz    9.47  100.91  30.0    10.00  102.24     0.24      0.67    N/A    1.37  2.56   0.0 GIF
   20191117 09:50:28     AMSR2 85-92GHz    9.47  100.91  30.0    10.01  102.29     0.24      0.67    N/A    1.37  2.47   0.0 GIF
   20191117 10:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.04  102.35     0.31      0.87    N/A    0.87  5.05   0.0 GIF
   20191117 10:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.06  102.40     0.31      0.87    N/A    0.87  4.91   0.0 GIF
   20191117 11:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.08  102.46     0.31      0.87    N/A    0.87  4.76   0.0 GIF
   20191117 11:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.10  102.51     0.31      0.87    N/A    0.87  4.60   0.0 GIF
   20191117 12:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.11  102.57     0.31      0.87    N/A    0.87  4.45   0.0 GIF
   20191117 12:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.13  102.63     0.31      0.87    N/A    0.87  4.30   0.0 GIF
   20191117 13:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.14  102.68     0.31      0.87    N/A    0.87  4.14   0.0 GIF
   20191117 13:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.16  102.74     0.31      0.87    N/A    0.87  4.00   0.0 GIF
   20191117 14:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.18  102.80     0.31      0.87    N/A    0.87  3.85   0.0 GIF
   20191117 14:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.49  102.79     0.31      0.87    N/A    0.87  3.71   0.0 GIF
   20191117 15:20:28    GOES16      Vis   10.51  102.83  25.0    10.46  102.99     0.18      0.50   0.50    0.71  9.40  87.5 GIF
   20191117 15:50:28    GOES16      Vis   10.53  102.88  25.0    10.46  103.04     0.23      0.66   0.10    0.55  7.17  74.7 GIF
   20191117 16:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.55  102.94     0.31      0.87    N/A    0.87  3.33   0.0 GIF
   20191117 16:50:28    GOES16      Vis   10.58  102.99  25.0    10.43  103.09     0.21      0.60   0.20    0.60  7.86  81.1 GIF
   20191117 17:20:28    GOES16      Vis   10.60  103.04  25.0    10.53  103.01     0.25      0.72   0.30    0.51  6.60  73.0 GIF
   20191117 17:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.61  103.10     0.31      0.87    N/A    0.87  2.99   0.0 GIF
   20191117 18:20:28    GOES16      Vis   10.65  103.14  25.0    10.62  103.06     0.28      0.78   0.45    0.48  6.05  69.4 GIF
   20191117 18:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.67  103.19     0.31      0.87    N/A    0.87  2.78   0.0 GIF
   20191117 19:20:28     AMSR2 85-92GHz    9.97  102.12  25.0    10.67  103.25     0.31      0.87    N/A    0.87  2.69   0.0 GIF
   20191117 19:50:28    GOES16      Vis   10.72  103.29  25.0    10.54  103.39     0.28      0.79   0.30    0.47  6.00  65.0 GIF
   20191117 20:20:28    GOES16       IR   10.74  103.34  25.0    10.19  104.08     0.57      1.62   0.05    0.51  2.94  79.3 GIF
   20191117 20:50:28     AMSR2 85-92GHz    9.97  102.12  25.0    11.07  103.90     0.31      0.87    N/A    0.87  2.43   0.0 GIF
   20191117 21:20:28    GOES16      Vis   11.11  103.94  25.0    10.96  104.29     0.33      0.92   0.05    0.41  5.16  60.6 GIF
   20191117 21:50:28    GOES16       IR   11.14  103.99  25.0    10.36  104.68     0.32      0.91   0.05    0.74  5.22  98.6 GIF
   20191117 22:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.16  104.05     0.43      1.21    N/A    0.40  3.78   0.0 GIF
   20191117 22:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.18  104.11     0.43      1.21    N/A    0.40  3.71   0.0 GIF
   20191117 23:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.20  104.16     0.43      1.21    N/A    0.40  3.63   0.0 GIF
   20191117 23:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.23  104.22     0.43      1.21    N/A    0.40  3.55   0.0 GIF
   20191118 00:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.24  104.28     0.43      1.21    N/A    0.40  3.46   0.0 GIF
   20191118 00:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.27  104.33     0.43      1.21    N/A    0.40  3.37   0.0 GIF
   20191118 01:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.29  104.39     0.43      1.21    N/A    0.40  3.28   0.0 GIF
   20191118 01:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.31  104.45     0.43      1.21    N/A    0.40  3.19   0.0 GIF
   20191118 02:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.34  104.51     0.43      1.21    N/A    0.40  3.10   0.0 GIF
   20191118 02:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.89  104.59     0.43      1.21    N/A    0.40  3.02   0.0 GIF
   20191118 03:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.90  104.65     0.43      1.21    N/A    0.40  2.93   0.0 GIF
   20191118 03:50:28    GOES16   NearIR   11.92  104.68  25.0    12.37  106.06     0.54      1.52   0.05    0.40  3.12  68.2 GIF
   20191118 04:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.94  104.73     0.43      1.21    N/A    0.40  2.76   0.0 GIF
   20191118 04:50:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.95  104.78     0.43      1.21    N/A    0.40  2.68   0.0 GIF
   20191118 05:20:28     AMSR2 85-92GHz   11.09  103.87  25.0    11.95  104.84     0.43      1.21    N/A    0.40  2.61   0.0 GIF
   20191118 05:50:28    GOES16   NearIR   11.98  104.87  25.0    13.05  104.99     0.30      0.85   0.05    0.69  5.60 100.0 GIF
   20191118 06:20:28    GOES16   NearIR   11.99  104.91  25.0    13.09  105.06     0.62      1.76   0.05    0.35  2.70  76.0 GIF
   20191118 06:50:28    GOES16   NearIR   12.00  104.96  25.0    13.20  105.16     0.37      1.03   0.05    0.57  4.59 100.0 GIF
   20191118 07:20:28    GOES16   NearIR   12.01  105.00  25.0    12.81  105.28     0.23      0.64   0.05    0.90  7.40 100.0 GIF
   20191118 07:50:28    GOES16       IR   12.02  105.04  25.0    12.85  105.38     0.46      1.30   0.05    0.58  3.64  99.4 GIF
   20191118 08:20:28    GOES16   NearIR   12.03  105.09  25.0    12.78  105.37     0.47      1.34   0.10    0.45  3.54  87.4 GIF
   20191118 08:50:28    GOES16   NearIR   12.20  104.99  25.0    13.22  105.42     0.28      0.80   0.05    0.73  5.94 100.0 GIF
   20191118 09:20:28    GOES16   NearIR   12.20  105.03  25.0    13.03  105.85     0.32      0.91   0.05    0.64  5.21 100.0 GIF
   20191118 09:50:28    GOES16   NearIR   12.20  105.07  25.0    13.25  105.94     0.76      2.15   0.10    0.30  2.20  68.8 GIF
   20191118 10:20:28    GOES16   NearIR   12.21  105.11  25.0    13.63  105.08     0.38      1.08   0.15    0.55  4.39  98.2 GIF
   20191118 10:50:28    GOES16       IR   12.21  105.15  25.0    12.51  105.10     0.35      0.98   0.20    0.70  4.84 100.0 GIF
   20191118 11:20:28    GOES16       IR   12.22  105.20  25.0    12.49  105.12     0.41      1.17   0.20    0.62  4.06  96.9 GIF
   20191118 11:50:28    GOES16       IR   12.22  105.24  25.0    12.40  105.09     0.59      1.67   0.15    0.50  2.84  85.5 GIF
   20191118 12:20:28    GOES16   NearIR   12.23  105.29  25.0    13.28  106.46     0.77      2.17   0.10    0.30  2.19  64.1 GIF
   20191118 12:50:28    GOES16   NearIR   12.23  105.33  25.0    13.28  106.76     0.24      0.66   0.05    0.87  7.14 100.0 GIF
   20191118 13:20:28    GOES16   NearIR   12.24  105.38  25.0    13.31  105.86     0.77      2.17   0.10    0.29  2.18  60.9 GIF
   20191118 13:50:28    SSMI18 85-92GHz   12.24  105.42  25.0    12.25  105.43     0.33      0.94    N/A    0.74  5.05   0.0 GIF
   20191118 14:20:28       GMI 85-92GHz   12.25  105.44  25.0    12.25  105.47     0.33      0.93    N/A    0.75  5.07   0.0 GIF
   20191118 14:50:28       GMI 85-92GHz   12.25  105.44  25.0    12.30  105.49     0.33      0.93    N/A    0.75  5.00   0.0 GIF
   20191118 15:20:28       GMI 85-92GHz   12.25  105.44  25.0    12.30  105.53     0.33      0.93    N/A    0.75  4.90   0.0 GIF
   20191118 15:50:28    GOES16       IR   12.30  105.57  25.0    12.50  106.62     0.34      0.96   0.10    0.71  4.97  99.7 GIF
   20191118 16:20:28       GMI 85-92GHz   12.25  105.44  25.0    12.30  105.61     0.33      0.93    N/A    0.75  4.67   0.0 GIF
   20191118 16:50:28       GMI 85-92GHz   12.25  105.44  25.0    12.31  105.65     0.33      0.93    N/A    0.75  4.54   0.0 GIF
   20191118 17:20:28       GMI 85-92GHz   12.25  105.44  25.0    12.31  105.69     0.33      0.93    N/A    0.75  4.41   0.0 GIF
   20191118 17:50:28    GOES16   NearIR   12.32  105.74  25.0    13.42  104.69     0.31      0.88   0.05    0.66  5.36  83.1 GIF
   20191118 18:20:28       GMI 85-92GHz   12.25  105.44  25.0    12.33  105.78     0.33      0.93    N/A    0.75  4.13   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