Tropical Storm 04E


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    .
   20210618 14:20:20    GOES16   NearIR   14.62  102.14  30.0    15.02  102.61     0.53      1.51   0.05    0.41  3.15  67.6 GIF
   20210618 14:40:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.33  101.77     0.31      0.86    N/A    0.88  5.51   0.0 GIF
   20210618 15:10:20    GOES16       IR   14.71  102.52  35.0    14.89  104.30     0.24      0.67   0.05    0.92  7.06 100.0 GIF
   20210618 15:50:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.45  102.17     0.31      0.86    N/A    0.88  5.31   0.0 GIF
   20210618 16:10:20    GOES16      Vis   14.77  102.61  35.0    15.12  102.74     0.29      0.81   0.05    0.46  5.87  76.8 GIF
   20210618 16:40:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.50  102.25     0.31      0.86    N/A    0.88  5.09   0.0 GIF
   20210618 17:10:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.53  102.30     0.31      0.86    N/A    0.88  4.94   0.0 GIF
   20210618 17:40:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.56  102.34     0.31      0.86    N/A    0.88  4.79   0.0 GIF
   20210618 18:10:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.59  102.39     0.31      0.86    N/A    0.88  4.63   0.0 GIF
   20210618 18:50:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.62  102.45     0.31      0.86    N/A    0.88  4.42   0.0 GIF
   20210618 19:10:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.65  102.48     0.31      0.86    N/A    0.88  4.32   0.0 GIF
   20210618 19:40:20    SSMI17 85-92GHz   14.63  102.17  30.0    15.69  102.52     0.31      0.86    N/A    0.88  4.17   0.0 GIF
   20210618 20:10:20    GOES16   NearIR   15.02  102.97  35.0    16.52  103.69     0.35      1.00   0.05    0.59  4.77  65.0 GIF
   20210618 20:40:20    GOES16   NearIR   15.05  103.01  35.0    16.55  104.31     0.42      1.17   0.05    0.51  4.04  64.1 GIF
   20210618 21:20:20    GOES16      Vis   15.63  102.33  40.0    15.78  102.48     0.39      1.10   0.05    0.36  4.32  54.6 GIF
   20210618 21:40:20    GOES16      Vis   15.67  102.35  40.0    15.82  102.61     0.37      1.03   0.10    0.38  4.59  61.2 GIF
   20210618 22:10:20    SSMI17 85-92GHz   14.63  102.17  30.0    16.42  102.00     0.31      0.86    N/A    0.88  3.47   0.0 GIF
   20210618 22:40:20    SSMI17 85-92GHz   14.63  102.17  30.0    16.47  102.03     0.31      0.86    N/A    0.88  3.34   0.0 GIF
   20210618 23:20:20    SSMI17 85-92GHz   14.63  102.17  30.0    16.54  102.10     0.31      0.86    N/A    0.88  3.19   0.0 GIF
   20210618 23:50:20       GMI 85-92GHz   15.87  102.51  40.0    16.14  101.82     0.21      0.58    N/A    1.68  8.10   0.0 GIF
   20210619 00:10:20       GMI 85-92GHz   15.87  102.51  40.0    16.18  101.85     0.21      0.58    N/A    1.68  7.99   0.0 GIF
   20210619 00:40:20       GMI 85-92GHz   15.87  102.51  40.0    16.23  101.89     0.21      0.58    N/A    1.68  7.77   0.0 GIF
   20210619 01:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    15.93  101.88     0.22      0.63    N/A    1.51  7.57   0.0 GIF
   20210619 01:40:20    SSMI18 85-92GHz   16.02  102.65  40.0    15.99  101.92     0.22      0.63    N/A    1.51  7.44   0.0 GIF
   20210619 02:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.04  101.97     0.22      0.63    N/A    1.51  7.25   0.0 GIF
   20210619 02:50:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.12  102.03     0.22      0.63    N/A    1.51  6.94   0.0 GIF
   20210619 03:10:20    GOES16   NearIR   16.32  102.81  45.0    16.32  102.76     0.20      0.56   0.20    1.02  8.51 100.0 GIF
   20210619 03:40:20    GOES16   NearIR   16.39  102.85  45.0    16.21  102.85     0.23      0.66   0.30    0.87  7.15 100.0 GIF
   20210619 04:20:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.38  102.13     0.22      0.63    N/A    1.51  6.16   0.0 GIF
   20210619 04:40:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.42  102.16     0.22      0.63    N/A    1.51  5.98   0.0 GIF
   20210619 05:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.49  102.21     0.22      0.63    N/A    1.51  5.72   0.0 GIF
   20210619 05:50:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.58  102.27     0.22      0.63    N/A    1.51  5.39   0.0 GIF
   20210619 06:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.63  102.30     0.22      0.63    N/A    1.51  5.23   0.0 GIF
   20210619 06:40:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.69  102.35     0.22      0.63    N/A    1.51  5.00   0.0 GIF
   20210619 07:20:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.78  102.41     0.22      0.63    N/A    1.51  4.70   0.0 GIF
   20210619 07:40:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.83  102.44     0.22      0.63    N/A    1.51  4.56   0.0 GIF
   20210619 08:20:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.93  102.50     0.22      0.63    N/A    1.51  4.30   0.0 GIF
   20210619 08:50:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.00  102.55     0.22      0.63    N/A    1.51  4.11   0.0 GIF
   20210619 09:20:20    SSMI18 85-92GHz   16.02  102.65  40.0    16.95  102.35     0.22      0.63    N/A    1.51  3.93   0.0 GIF
   20210619 09:50:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.02  102.38     0.22      0.63    N/A    1.51  3.77   0.0 GIF
   20210619 10:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.07  102.41     0.22      0.63    N/A    1.51  3.66   0.0 GIF
   20210619 10:40:20    GOES16   NearIR   17.25  103.20  50.0    17.83  103.44     0.42      1.18   0.05    0.51  4.03  75.5 GIF
   20210619 11:10:20    GOES16       IR   17.33  103.23  50.0    17.81  103.65     0.19      0.54   0.05    1.10  8.79 100.0 GIF
   20210619 11:40:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.31  102.49     0.22      0.63    N/A    1.51  3.23   0.0 GIF
   20210619 12:10:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.39  102.53     0.22      0.63    N/A    1.51  3.10   0.0 GIF
   20210619 12:50:20    SSMI18 85-92GHz   16.02  102.65  40.0    17.52  102.55     0.22      0.63    N/A    1.51  2.94   0.0 GIF
   20210619 13:20:20    SSMI18 85-92GHz   17.70  103.35  50.0    18.00  103.61     0.64      1.80    N/A    0.00  2.63   0.0 GIF
   20210619 13:40:20    SSMI18 85-92GHz   17.70  103.35  50.0    18.06  103.63     0.64      1.80    N/A    0.00  2.62   0.0 GIF
   20210619 14:20:20    SSMI18 85-92GHz   17.70  103.35  50.0    18.18  103.67     0.64      1.80    N/A    0.00  2.59   0.0 GIF
   20210619 14:50:20    SSMI18 85-92GHz   17.70  103.35  50.0    18.28  103.69     0.64      1.80    N/A    0.00  2.57   0.0 GIF
   20210619 15:10:20    SSMI18 85-92GHz   17.70  103.35  50.0    18.94  103.97     0.64      1.80    N/A    0.00  2.54   0.0 GIF
   20210619 15:40:20    GOES16      Vis   18.76  103.74  60.0    18.81  104.17     0.59      1.66   0.20    0.26  2.87  48.5 GIF
   20210619 16:20:20    SSMI18 85-92GHz   17.70  103.35  50.0    19.22  104.05     0.64      1.80    N/A    0.00  2.46   0.0 GIF
   20210619 16:50:21    GOES16      Vis   19.04  103.81  60.0    19.06  104.29     0.51      1.44   0.05    0.29  3.30  46.3 GIF
   20210619 17:20:20    GOES16      Vis   19.15  103.84  60.0    19.22  104.27     0.34      0.96   0.05    0.40  4.92  50.0 GIF
   20210619 17:40:20    GOES16      Vis   19.22  103.86  60.0    19.32  104.39     0.24      0.68   0.15    0.54  6.98  52.7 GIF
   20210619 18:20:20    GOES16      Vis   19.36  103.90  60.0    19.59  104.22     0.44      1.24   0.05    0.32  3.82  47.3 GIF
   20210619 18:40:20    GOES16      Vis   19.43  103.92  60.0    19.71  104.40     0.31      0.89   0.45    0.43  5.36  48.8 GIF
   20210619 19:10:20    GOES16      Vis   19.54  103.95  60.0    19.74  104.51     0.33      0.94   0.05    0.41  5.05  59.2 GIF
   20210619 19:40:20    GOES16      Vis   19.64  103.98  60.0    19.89  104.56     0.30      0.83   0.35    0.45  5.69  57.9 GIF
   20210619 20:20:20    GOES16      Vis   19.77  104.02  60.0    20.12  104.73     0.44      1.25   0.35    0.32  3.81  62.2 GIF
   20210619 20:50:20    GOES16   NearIR   19.86  104.04  60.0    20.16  105.80     0.26      0.73   0.05    0.79  6.47  75.1 GIF
   20210619 21:10:20    GOES16      Vis   20.34  104.11  50.0    20.62  104.99     0.31      0.87   0.15    0.43  5.45  68.2 GIF
   20210619 21:40:20    GOES16      Vis   20.46  104.12  50.0    20.91  104.98     0.28      0.80   0.05    0.47  5.93  79.3 GIF
   20210619 22:20:20    GOES16       IR   20.62  104.15  50.0    20.82  105.67     0.51      1.44   0.10    0.54  3.30  69.7 GIF
   20210619 22:50:20     AMSR2 85-92GHz   20.14  104.08  50.0    20.69  104.43     0.54      1.54    N/A    0.14  2.91   0.0 GIF
   20210619 23:10:20    SSMI18 85-92GHz   20.81  104.18  50.0    20.42  103.91     0.26      0.72    N/A    1.19  6.53   0.0 GIF
   20210619 23:50:20    SSMI18 85-92GHz   20.81  104.18  50.0    20.58  103.94     0.26      0.72    N/A    1.19  6.41   0.0 GIF
   20210620 00:10:20    SSMI18 85-92GHz   20.81  104.18  50.0    20.66  103.96     0.26      0.72    N/A    1.19  6.32   0.0 GIF
   20210620 00:50:20    SSMI16 85-92GHz   20.98  104.21  50.0    21.62  105.12     0.28      0.78    N/A    1.04  5.86   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