Tropical Storm 02L


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    .
   20210614 15:20:19    GOES16      Vis   35.05   73.61  30.0    34.80   73.06     0.47      1.34   0.05    0.30  3.54  74.1 GIF
   20210614 15:50:19    SSMI17 85-92GHz   34.81   74.02  30.0    34.59   73.78     0.33      0.93    N/A    0.76  4.76   0.0 GIF
   20210614 16:20:19    SSMI17 85-92GHz   34.81   74.02  30.0    34.67   73.65     0.33      0.93    N/A    0.76  4.63   0.0 GIF
   20210614 16:50:19    SSMI17 85-92GHz   34.81   74.02  30.0    34.76   73.51     0.33      0.93    N/A    0.76  4.50   0.0 GIF
   20210614 17:20:19    GOES16   NearIR   35.38   73.06  30.0    35.26   72.66     0.30      0.86   0.05    0.68  5.50  78.7 GIF
   20210614 17:50:19    GOES16      Vis   35.46   72.92  30.0    35.14   72.79     0.34      0.97   0.05    0.40  4.91  81.6 GIF
   20210614 18:20:19    SSMI17 85-92GHz   34.81   74.02  30.0    35.01   73.09     0.33      0.93    N/A    0.76  4.09   0.0 GIF
   20210614 18:50:19    SSMI17 85-92GHz   34.81   74.02  30.0    35.10   72.95     0.33      0.93    N/A    0.76  3.95   0.0 GIF
   20210614 19:10:19    SSMI17 85-92GHz   34.81   74.02  30.0    35.16   72.85     0.33      0.93    N/A    0.76  3.86   0.0 GIF
   20210614 19:50:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.31   71.95     0.30      0.84    N/A    0.92  5.39   0.0 GIF
   20210614 20:10:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.37   71.85     0.30      0.84    N/A    0.92  5.30   0.0 GIF
   20210614 20:50:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.49   71.64     0.30      0.84    N/A    0.92  5.10   0.0 GIF
   20210614 21:20:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.07   71.51     0.30      0.84    N/A    0.92  4.94   0.0 GIF
   20210614 21:50:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.19   71.32     0.30      0.84    N/A    0.92  4.78   0.0 GIF
   20210614 22:10:19     AMSR2 85-92GHz   35.57   72.74  30.0    35.25   71.19     0.30      0.84    N/A    0.92  4.67   0.0 GIF
   20210614 22:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    35.53   70.87     0.29      0.81    N/A    0.98  5.82   0.0 GIF
   20210614 23:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    35.64   70.67     0.29      0.81    N/A    0.98  5.72   0.0 GIF
   20210614 23:40:19    SSMI18 85-92GHz   35.82   71.41  30.0    35.71   70.54     0.29      0.81    N/A    0.98  5.64   0.0 GIF
   20210615 00:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    35.85   70.28     0.29      0.81    N/A    0.98  5.45   0.0 GIF
   20210615 00:40:19    SSMI18 85-92GHz   35.82   71.41  30.0    35.92   70.14     0.29      0.81    N/A    0.98  5.34   0.0 GIF
   20210615 01:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.07   69.87     0.29      0.81    N/A    0.98  5.12   0.0 GIF
   20210615 01:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.18   69.67     0.29      0.81    N/A    0.98  4.95   0.0 GIF
   20210615 02:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.31   69.48     0.29      0.81    N/A    0.98  4.78   0.0 GIF
   20210615 02:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.42   69.27     0.29      0.81    N/A    0.98  4.61   0.0 GIF
   20210615 03:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.44   69.24     0.29      0.81    N/A    0.98  4.44   0.0 GIF
   20210615 03:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.56   69.01     0.29      0.81    N/A    0.98  4.28   0.0 GIF
   20210615 04:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.68   68.79     0.29      0.81    N/A    0.98  4.12   0.0 GIF
   20210615 04:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.81   68.55     0.29      0.81    N/A    0.98  3.96   0.0 GIF
   20210615 05:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    36.93   68.31     0.29      0.81    N/A    0.98  3.81   0.0 GIF
   20210615 05:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.06   68.07     0.29      0.81    N/A    0.98  3.67   0.0 GIF
   20210615 06:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.19   67.82     0.29      0.81    N/A    0.98  3.53   0.0 GIF
   20210615 06:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.32   67.56     0.29      0.81    N/A    0.98  3.40   0.0 GIF
   20210615 07:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.40   67.27     0.29      0.81    N/A    0.98  3.28   0.0 GIF
   20210615 07:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.53   67.00     0.29      0.81    N/A    0.98  3.16   0.0 GIF
   20210615 08:20:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.66   66.74     0.29      0.81    N/A    0.98  3.04   0.0 GIF
   20210615 08:50:19    SSMI18 85-92GHz   35.82   71.41  30.0    37.79   66.47     0.29      0.81    N/A    0.98  2.93   0.0 GIF
   20210615 09:20:19     AMSR2 85-92GHz   37.74   68.31  45.0    38.86   66.24     0.37      1.06    N/A    0.56  4.02   0.0 GIF
   20210615 09:50:19     AMSR2 85-92GHz   37.74   68.31  45.0    38.99   65.99     0.37      1.06    N/A    0.56  3.91   0.0 GIF
   20210615 10:20:19     AMSR2 85-92GHz   37.74   68.31  45.0    39.14   65.76     0.37      1.06    N/A    0.56  3.80   0.0 GIF
   20210615 10:50:19    SSMI18 85-92GHz   38.98   66.42  45.0    38.87   65.38     0.16      0.46    N/A    2.37 10.37   0.0 GIF
   20210615 11:20:19    SSMI18 85-92GHz   38.98   66.42  45.0    39.01   65.14     0.16      0.46    N/A    2.37 10.12   0.0 GIF
   20210615 11:40:19    SSMI18 85-92GHz   38.98   66.42  45.0    39.11   64.99     0.16      0.46    N/A    2.37  9.89   0.0 GIF
   20210615 11:40:19    SSMI18 85-92GHz   38.98   66.42  45.0    39.11   64.99     0.16      0.46    N/A    2.37  9.89   0.0 GIF
   20210615 11:50:19    SSMI18 85-92GHz   38.98   66.42  45.0    39.16   64.91     0.16      0.46    N/A    2.37  9.76   0.0 GIF
   20210615 13:20:20    SSMI18 85-92GHz   38.98   66.42  45.0    39.58   64.20     0.16      0.46    N/A    2.37  8.46   0.0 GIF
   20210615 13:50:20    SSMI18 85-92GHz   38.98   66.42  45.0    39.72   63.96     0.16      0.46    N/A    2.37  8.01   0.0 GIF
   20210615 14:20:20    SSMI18 85-92GHz   38.98   66.42  45.0    39.86   63.72     0.16      0.46    N/A    2.37  7.58   0.0 GIF
   20210615 14:40:20    SSMI18 85-92GHz   38.98   66.42  45.0    39.95   63.56     0.16      0.46    N/A    2.37  7.30   0.0 GIF
   20210615 15:10:20    SSMI18 85-92GHz   38.98   66.42  45.0    40.42   60.95     0.16      0.46    N/A    2.37  6.90   0.0 GIF
   20210615 15:40:20    SSMI18 85-92GHz   38.98   66.42  45.0    40.57   60.69     0.16      0.46    N/A    2.37  6.53   0.0 GIF
   20210615 16:20:20    SSMI18 85-92GHz   38.98   66.42  45.0    40.77   60.36     0.16      0.46    N/A    2.37  6.06   0.0 GIF
   20210615 16:40:20    SSMI18 85-92GHz   38.98   66.42  45.0    40.90   60.22     0.16      0.46    N/A    2.37  5.84   0.0 GIF
   20210615 17:10:20    SSMI18 85-92GHz   38.98   66.42  45.0    41.00   59.96     0.16      0.46    N/A    2.37  5.53   0.0 GIF
   20210615 17:40:20    GOES16      Vis   41.30   60.70  50.0    41.42   61.53     0.30      0.83   0.40    0.45  5.69  91.8 GIF
   20210615 18:20:20    GOES16      Vis   41.51   60.41  50.0    41.56   61.15     0.29      0.82   0.45    0.46  5.77  79.8 GIF
   20210615 18:50:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.42   60.29     0.24      0.69    N/A    1.29  6.52   0.0 GIF
   20210615 19:10:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.53   60.17     0.24      0.69    N/A    1.29  6.39   0.0 GIF
   20210615 19:40:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.69   59.97     0.24      0.69    N/A    1.29  6.18   0.0 GIF
   20210615 20:10:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.85   59.80     0.24      0.69    N/A    1.29  5.96   0.0 GIF
   20210615 20:40:20     AMSR2 85-92GHz   41.26   60.75  50.0    42.02   59.63     0.24      0.69    N/A    1.29  5.74   0.0 GIF
   20210615 21:10:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.41   59.61     0.24      0.69    N/A    1.29  5.52   0.0 GIF
   20210615 21:40:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.54   59.41     0.24      0.69    N/A    1.29  5.29   0.0 GIF
   20210615 22:10:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.69   59.22     0.24      0.69    N/A    1.29  5.08   0.0 GIF
   20210615 22:40:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.84   59.02     0.24      0.69    N/A    1.29  4.87   0.0 GIF
   20210615 23:10:20     AMSR2 85-92GHz   41.26   60.75  50.0    41.97   58.80     0.24      0.69    N/A    1.29  4.66   0.0 GIF
   20210615 23:40:20    SSMI17 85-92GHz   42.32   58.58  50.0    41.91   58.25     0.25      0.70    N/A    1.26  6.75   0.0 GIF
   20210616 00:10:20    SSMI17 85-92GHz   42.32   58.58  50.0    42.07   58.05     0.25      0.70    N/A    1.26  6.64   0.0 GIF
   20210616 00:40:20    SSMI17 85-92GHz   42.32   58.58  50.0    42.24   57.85     0.25      0.70    N/A    1.26  6.49   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