Tropical Depression 20E


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    .
   20191115 03:50:27    GOES16   NearIR   13.05  108.43  30.0    13.50  110.07     0.48      1.35   0.05    0.45  3.51  79.1 GIF
   20191115 04:20:27    GOES16       IR   13.09  108.44  30.0    13.69  109.93     1.09      3.08   0.05    0.36  1.54  67.3 GIF
   20191115 04:50:27    GOES16   NearIR   13.12  108.46  30.0    13.97  108.94     1.99      5.62   0.35    0.14  0.84  47.1 GIF
   20191115 05:20:27    GOES16   NearIR   13.15  108.47  30.0    14.00  109.27     1.67      4.73   0.05    0.16  1.00  47.8 GIF
   20191115 05:50:27    GOES16   NearIR   13.18  108.49  30.0    13.66  109.51     0.44      1.25   0.05    0.48  3.80  80.0 GIF
   20191115 06:20:27    GOES16   NearIR   13.21  108.50  30.0    14.11  109.55     1.05      2.97   0.05    0.23  1.60  61.1 GIF
   20191115 06:50:27    GOES16   NearIR   13.25  108.52  30.0    13.77  109.72     0.69      1.96   0.05    0.32  2.42  63.4 GIF
   20191115 07:20:27    GOES16       IR   13.28  108.53  30.0    13.80  109.66     1.03      2.91   0.05    0.37  1.63  78.2 GIF
   20191115 07:50:27    GOES16       IR   13.31  108.55  30.0    13.51  109.50     3.36      9.49   0.10    0.01  0.50   3.1 GIF
   20191115 08:20:27    GOES16   NearIR   13.34  108.57  30.0    14.49  109.46     0.50      1.43   0.05    0.43  3.33  74.7 GIF
   20191115 08:50:27    GOES16   NearIR   13.48  108.59  30.0    14.48  109.47     0.67      1.89   0.05    0.33  2.51  63.8 GIF
   20191115 09:20:27    GOES16   NearIR   13.53  108.61  30.0    14.06  109.15     1.05      2.97   0.10    0.23  1.60  55.8 GIF
   20191115 09:50:27    GOES16   NearIR   13.58  108.63  30.0    14.43  109.56     0.30      0.84   0.05    0.70  5.68  98.5 GIF
   20191115 10:20:27    GOES16   NearIR   13.63  108.66  30.0    14.58  109.40     0.55      1.55   0.05    0.39  3.05  72.7 GIF
   20191115 10:50:27    GOES16       IR   13.68  108.68  30.0    14.86  109.50     0.98      2.76   0.05    0.38  1.72  68.7 GIF
   20191115 11:20:27    GOES16       IR   13.73  108.70  30.0    14.93  109.42     0.87      2.46   0.05    0.40  1.92  73.7 GIF
   20191115 11:50:27    GOES16       IR   13.78  108.73  30.0    14.36  109.17     3.36      9.49   0.25    0.13  0.50  47.7 GIF
   20191115 12:20:27    GOES16   NearIR   13.83  108.75  30.0    14.53  109.81     0.55      1.56   0.10    0.39  3.05  66.4 GIF
   20191115 12:50:27    GOES16       IR   13.88  108.78  30.0    14.41  109.66     3.36      9.49   0.05    0.01  0.50   1.9 GIF
   20191115 13:20:27    GOES16   NearIR   13.93  108.81  30.0    14.58  109.79     0.29      0.82   0.05    0.71  5.82  92.7 GIF
   20191115 13:50:27    GOES16   NearIR   13.98  108.84  30.0    14.56  109.82     0.30      0.85   0.10    0.68  5.56  91.2 GIF
   20191115 14:20:27    GOES16   NearIR   14.03  108.87  30.0    14.61  109.95     0.35      1.00   0.10    0.59  4.74  91.4 GIF
   20191115 14:50:27    GOES16   NearIR   14.08  108.79  40.0    15.06  109.62     0.66      1.88   0.05    0.33  2.53  57.3 GIF
   20191115 15:20:27    GOES16   NearIR   14.14  108.82  40.0    15.01  109.88     0.25      0.72   0.05    0.80  6.62  95.6 GIF
   20191115 15:50:27    GOES16      Vis   14.19  108.85  40.0    14.54  109.57     0.17      0.47   0.30    0.76 10.10  81.7 GIF
   20191115 16:20:27    GOES16      Vis   14.24  108.88  40.0    14.67  109.52     0.14      0.39   0.15    0.89 12.05  88.2 GIF
   20191115 16:50:27    GOES16      Vis   14.30  108.90  40.0    14.52  109.47     0.24      0.67   0.35    0.55  7.07  60.3 GIF
   20191115 17:20:27    GOES16      Vis   14.35  108.93  40.0    14.50  109.55     0.21      0.61   0.45    0.60  7.82  64.0 GIF
   20191115 17:50:27    GOES16      Vis   14.41  108.96  40.0    14.73  109.45     0.32      0.89   0.15    0.43  5.32  54.8 GIF
   20191115 18:20:27    GOES16      Vis   14.46  108.98  40.0    14.89  109.32     0.33      0.94   0.15    0.41  5.03  60.0 GIF
   20191115 18:50:27    GOES16      Vis   14.52  109.01  40.0    14.57  109.22     0.66      1.86   0.10    0.23  2.55  48.6 GIF
   20191115 19:20:27    GOES16      Vis   14.58  109.04  40.0    14.68  109.17     0.55      1.55   0.10    0.27  3.05  48.8 GIF
   20191115 19:50:27    GOES16      Vis   14.63  109.06  40.0    14.73  109.22     0.43      1.22   0.05    0.33  3.90  52.1 GIF
   20191115 20:20:27    GOES16       IR   14.69  109.09  40.0    15.49  110.46     0.32      0.91   0.15    0.74  5.21  98.0 GIF
   20191115 20:50:27    GOES16      Vis   14.68  109.38  45.0    15.03  110.06     0.49      1.39   0.15    0.29  3.41  49.5 GIF
   20191115 21:20:27    GOES16      Vis   14.74  109.43  45.0    14.86  110.03     0.31      0.89   0.40    0.43  5.34  64.4 GIF
   20191115 21:50:27    GOES16      Vis   14.80  109.47  45.0    14.80  109.96     0.28      0.79   0.25    0.47  6.03  68.0 GIF
   20191115 22:20:27    GOES16      Vis   14.85  109.51  45.0    14.80  109.87     0.39      1.10   0.10    0.36  4.31  55.8 GIF
   20191115 22:50:27    GOES16      Vis   14.90  109.54  45.0    14.58  109.90     0.36      1.01   0.10    0.38  4.68  54.6 GIF
   20191115 23:20:27    GOES16   NearIR   14.95  109.57  45.0    14.03  110.19     0.46      1.30   0.05    0.46  3.66  73.8 GIF
   20191115 23:50:27    GOES16       IR   15.00  109.60  45.0    14.98  111.46     0.38      1.08   0.05    0.66  4.41 100.0 GIF
   20191116 00:20:27     AMSR2 85-92GHz   14.69  109.39  45.0    15.05  109.62     0.50      1.41    N/A    0.22  3.02   0.0 GIF
   20191116 00:50:27    SSMI18 85-92GHz   15.06  109.62  45.0    15.10  109.65     0.38      1.08    N/A    0.53  4.34   0.0 GIF
   20191116 01:20:27    SSMI18 85-92GHz   15.06  109.62  45.0    15.15  109.66     0.38      1.08    N/A    0.53  4.28   0.0 GIF
   20191116 01:50:27    SSMI18 85-92GHz   15.06  109.62  45.0    15.20  109.68     0.38      1.08    N/A    0.53  4.21   0.0 GIF
   20191116 02:20:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.25  109.69     0.33      0.95    N/A    0.73  5.01   0.0 GIF
   20191116 02:50:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.38  109.79     0.33      0.95    N/A    0.73  4.95   0.0 GIF
   20191116 03:20:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.45  109.83     0.33      0.95    N/A    0.73  4.86   0.0 GIF
   20191116 03:50:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.51  109.86     0.33      0.95    N/A    0.73  4.75   0.0 GIF
   20191116 04:20:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.58  109.90     0.33      0.95    N/A    0.73  4.63   0.0 GIF
   20191116 04:50:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.65  109.93     0.33      0.95    N/A    0.73  4.50   0.0 GIF
   20191116 05:20:27    SSMI18 85-92GHz   15.22  109.69  45.0    15.71  109.97     0.33      0.95    N/A    0.73  4.37   0.0 GIF
   20191116 05:50:33    SSMI18 85-92GHz   15.22  109.69  45.0    15.78  110.01     0.33      0.95    N/A    0.73  4.24   0.0 GIF
   20191116 06:20:33    SSMI18 85-92GHz   15.22  109.69  45.0    15.84  110.05     0.33      0.95    N/A    0.73  4.10   0.0 GIF
   20191116 06:50:33    SSMI18 85-92GHz   15.22  109.69  45.0    15.91  110.08     0.33      0.95    N/A    0.73  3.97   0.0 GIF
   20191116 07:20:33    SSMI18 85-92GHz   15.22  109.69  45.0    15.98  110.12     0.33      0.95    N/A    0.73  3.84   0.0 GIF
   20191116 07:50:33    GOES17   NearIR   16.04  110.14  45.0    16.89  111.39     0.27      0.77   0.05    0.75  6.17  99.8 GIF
   20191116 08:20:33    GOES17   NearIR   16.11  110.18  45.0    16.96  111.77     0.28      0.79   0.05    0.74  6.04  95.7 GIF
   20191116 08:50:34    SSMI18 85-92GHz   15.22  109.69  45.0    15.68  110.60     0.33      0.95    N/A    0.73  3.46   0.0 GIF
   20191116 09:20:34    GOES17       IR   15.73  110.61  45.0    15.20  111.60     0.21      0.58   0.05    1.03  8.14 100.0 GIF
   20191116 09:50:34    SSMI18 85-92GHz   15.22  109.69  45.0    15.78  110.63     0.33      0.95    N/A    0.73  3.23   0.0 GIF
   20191116 10:20:34    SSMI18 85-92GHz   15.22  109.69  45.0    15.83  110.66     0.33      0.95    N/A    0.73  3.12   0.0 GIF
   20191116 10:50:34    SSMI18 85-92GHz   15.22  109.69  45.0    15.89  110.68     0.33      0.95    N/A    0.73  3.02   0.0 GIF
   20191116 11:20:34     AMSR2 85-92GHz   15.71  110.60  45.0    15.96  110.71     0.35      0.99    N/A    0.65  4.41   0.0 GIF
   20191116 11:50:34     AMSR2 85-92GHz   15.71  110.60  45.0    16.03  110.74     0.35      0.99    N/A    0.65  4.30   0.0 GIF
   20191116 12:20:34     AMSR2 85-92GHz   15.71  110.60  45.0    16.11  110.77     0.35      0.99    N/A    0.65  4.18   0.0 GIF
   20191116 12:50:34     AMSR2 85-92GHz   15.71  110.60  45.0    16.18  110.81     0.35      0.99    N/A    0.65  4.06   0.0 GIF
   20191116 13:20:34     AMSR2 85-92GHz   15.71  110.60  45.0    16.26  110.83     0.35      0.99    N/A    0.65  3.94   0.0 GIF
   20191116 13:50:34     AMSR2 85-92GHz   15.71  110.60  45.0    16.35  110.86     0.35      0.99    N/A    0.65  3.81   0.0 GIF
   20191116 14:20:34    SSMI18 85-92GHz   16.40  110.88  45.0    16.44  110.89     0.40      1.12    N/A    0.49  4.23   0.0 GIF
   20191116 14:50:34    SSMI18 85-92GHz   16.40  110.88  45.0    16.48  111.68     0.40      1.12    N/A    0.49  4.19   0.0 GIF
   20191116 15:20:34    SSMI18 85-92GHz   16.40  110.88  45.0    16.54  111.71     0.40      1.12    N/A    0.49  4.12   0.0 GIF
   20191116 15:50:34    GOES17      Vis   16.61  111.73  45.0    16.91  112.15     0.39      1.12   0.25    0.35  4.25  61.1 GIF
   20191116 16:20:34    GOES17      Vis   16.68  111.75  45.0    17.01  112.30     0.38      1.08   0.05    0.36  4.41  55.7 GIF
   20191116 16:50:34    SSMI18 85-92GHz   16.40  110.88  45.0    16.75  111.76     0.40      1.12    N/A    0.49  3.87   0.0 GIF
   20191116 17:20:34    SSMI18 85-92GHz   16.40  110.88  45.0    16.81  111.77     0.40      1.12    N/A    0.49  3.77   0.0 GIF
   20191116 17:50:34    GOES17      Vis   16.89  111.78  45.0    17.11  112.12     0.19      0.55   0.25    0.65  8.63  72.7 GIF
   20191116 18:20:34    GOES17      Vis   16.96  111.79  45.0    17.18  112.02     0.18      0.52   0.50    0.69  9.17  83.5 GIF
   20191116 18:50:34    GOES17      Vis   17.03  111.79  45.0    17.25  112.15     0.18      0.50   0.50    0.71  9.43  83.9 GIF
   20191116 19:20:34    GOES17      Vis   17.10  111.79  45.0    17.37  112.13     0.17      0.47   0.45    0.76 10.15  95.4 GIF
   20191116 19:50:34    GOES17      Vis   17.17  111.79  45.0    17.54  112.18     0.22      0.63   0.05    0.58  7.50  82.7 GIF
   20191116 20:20:34    GOES17      Vis   17.24  111.78  45.0    17.69  112.07     0.28      0.78   0.35    0.48  6.04  72.3 GIF
   20191116 20:50:33    GOES17       IR   16.49  111.80  40.0    17.06  113.26     0.49      1.39   0.05    0.55  3.41  73.9 GIF
   20191116 21:20:33    GOES17      Vis   16.53  111.80  40.0    16.73  112.06     0.26      0.74   0.15    0.50  6.45  64.4 GIF
   20191116 21:50:33    GOES17      Vis   16.59  111.80  40.0    16.57  111.96     0.32      0.90   0.10    0.42  5.30  54.1 GIF
   20191116 22:20:33    GOES17      Vis   16.66  111.80  40.0    16.68  111.96     0.20      0.58   0.35    0.62  8.19  67.1 GIF
   20191116 22:50:33    GOES17      Vis   16.73  111.80  40.0    16.70  111.90     0.21      0.58   0.20    0.62  8.11  60.8 GIF
   20191116 23:20:33    SSMI18 85-92GHz   16.40  110.88  45.0    16.80  111.80     0.40      1.12    N/A    0.49  2.64   0.0 GIF
   20191116 23:50:33    SSMI18 85-92GHz   16.40  110.88  45.0    16.89  111.80     0.40      1.12    N/A    0.49  2.56   0.0 GIF
   20191117 00:20:33    SSMI18 85-92GHz   16.40  110.88  45.0    16.98  111.80     0.40      1.12    N/A    0.49  2.48   0.0 GIF
   20191117 00:50:33    SSMI18 85-92GHz   16.40  110.88  45.0    17.07  111.79     0.40      1.12    N/A    0.49  2.41   0.0 GIF
   20191117 01:20:33    SSMI18 85-92GHz   16.40  110.88  45.0    17.17  111.79     0.40      1.12    N/A    0.49  2.34   0.0 GIF
   20191117 01:50:33     AMSR2 85-92GHz   15.71  110.60  45.0    17.27  111.79     0.35      0.99    N/A    0.65  1.78   0.0 GIF
   20191117 02:20:33    SSMI18 85-92GHz   17.30  111.78  40.0    17.38  111.78     0.64      1.80    N/A    0.00  2.62   0.0 GIF
   20191117 02:50:33    SSMI18 85-92GHz   17.30  111.78  40.0    16.88  112.10     0.64      1.80    N/A    0.00  2.60   0.0 GIF
   20191117 03:20:33    SSMI18 85-92GHz   17.30  111.78  40.0    16.94  112.09     0.64      1.80    N/A    0.00  2.57   0.0 GIF
   20191117 03:50:33    SSMI18 85-92GHz   17.30  111.78  40.0    17.02  112.08     0.64      1.80    N/A    0.00  2.54   0.0 GIF
   20191117 04:20:33    GOES17       IR   17.11  112.07  35.0    18.08  113.09     0.20      0.55   0.05    1.08  8.57 100.0 GIF
   20191117 04:50:33    GOES17       IR   17.20  112.05  35.0    18.40  112.89     0.19      0.55   0.05    1.08  8.64 100.0 GIF
   20191117 05:20:33    GOES17       IR   17.29  112.03  35.0    18.01  112.74     0.37      1.06   0.05    0.66  4.49  98.5 GIF
   20191117 05:50:33    GOES17       IR   17.38  112.01  35.0    18.28  112.59     0.28      0.78   0.05    0.82  6.06 100.0 GIF
   20191117 06:20:33    GOES17   NearIR   17.48  111.99  35.0    18.05  112.17     0.42      1.19   0.10    0.50  4.00  93.9 GIF
   20191117 06:50:33    GOES17       IR   17.58  111.97  35.0    17.75  112.12     0.51      1.44   0.05    0.54  3.30  99.4 GIF
   20191117 07:20:33    SSMI18 85-92GHz   17.30  111.78  40.0    17.68  111.95     0.64      1.80    N/A    0.00  2.25   0.0 GIF
   20191117 07:50:33    GOES17   NearIR   17.79  111.92  35.0    18.09  112.00     0.60      1.69   0.05    0.37  2.81  69.7 GIF
   20191117 08:20:33    SSMI18 85-92GHz   17.30  111.78  40.0    17.89  111.90     0.64      1.80    N/A    0.00  2.16   0.0 GIF
   20191117 08:50:34    SSMI18 85-92GHz   17.30  111.78  40.0    17.47  111.61     0.64      1.80    N/A    0.00  2.11   0.0 GIF
   20191117 09:20:34    SSMI18 85-92GHz   17.30  111.78  40.0    17.57  111.58     0.64      1.80    N/A    0.00  2.07   0.0 GIF
   20191117 09:50:34    SSMI18 85-92GHz   17.30  111.78  40.0    17.66  111.54     0.64      1.80    N/A    0.00  2.02   0.0 GIF
   20191117 10:20:34    SSMI18 85-92GHz   17.30  111.78  40.0    17.77  111.50     0.64      1.80    N/A    0.00  1.98   0.0 GIF
   20191117 10:50:34    SSMI18 85-92GHz   17.30  111.78  40.0    17.87  111.47     0.64      1.80    N/A    0.00  1.94   0.0 GIF
   20191117 11:20:34    GOES17   NearIR   17.98  111.44  30.0    18.08  111.65     0.64      1.81   0.10    0.34  2.62  62.2 GIF
   20191117 11:50:34    GOES17   NearIR   18.10  111.41  30.0    18.22  111.83     0.53      1.51   0.05    0.40  3.14  73.6 GIF
   20191117 12:20:34    SSMI18 85-92GHz   17.30  111.78  40.0    18.22  111.40     0.64      1.80    N/A    0.00  1.81   0.0 GIF
   20191117 12:50:34    GOES17       IR   18.34  111.36  30.0    18.54  110.89     0.44      1.24   0.05    0.60  3.84  98.4 GIF
   20191117 13:20:34    GOES17       IR   18.46  111.34  30.0    18.71  110.74     0.41      1.17   0.05    0.62  4.05  99.4 GIF
   20191117 13:50:34    GOES17   NearIR   18.58  111.32  30.0    18.86  112.32     0.84      2.38   0.05    0.27  2.00  60.7 GIF
   20191117 14:20:34    SSMI18 85-92GHz   18.61  111.32  30.0    18.71  111.30     0.43      1.21    N/A    0.39  3.89   0.0 GIF
   20191117 14:50:34    SSMI18 85-92GHz   18.61  111.32  30.0    19.07  111.11     0.43      1.21    N/A    0.39  3.85   0.0 GIF
   20191117 15:20:34    SSMI18 85-92GHz   18.61  111.32  30.0    19.18  111.08     0.43      1.21    N/A    0.39  3.79   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