Tropical Depression 08W


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    .
   20210707 15:10:00  HIMAWARI   NearIR   19.41 -107.47  25.0    19.59 -108.69     0.74      2.09   0.35    0.30  2.27  55.7 GIF
   20210707 15:40:00  HIMAWARI   NearIR   19.44 -107.40  25.0    19.74 -108.59     1.14      3.22   0.25    0.21  1.47  50.9 GIF
   20210707 16:10:00  HIMAWARI       IR   19.48 -107.32  25.0    19.38 -108.06     3.36      9.49   0.05    0.09  0.50  28.5 GIF
   20210707 16:40:00  HIMAWARI   NearIR   19.51 -107.24  25.0    19.21 -108.07     0.18      0.50   0.05    1.13  9.47 100.0 GIF
   20210707 17:10:00  HIMAWARI       IR   19.54 -107.17  25.0    19.34 -108.04     0.44      1.23   0.15    0.60  3.86  82.0 GIF
   20210707 17:40:00  HIMAWARI   NearIR   19.58 -107.09  25.0    19.13 -108.02     0.39      1.11   0.45    0.53  4.27  80.2 GIF
   20210707 18:10:00  HIMAWARI   NearIR   19.61 -107.02  25.0    19.06 -107.79     1.68      4.75   0.40    0.16  1.00  47.8 GIF
   20210707 18:40:00  HIMAWARI       IR   19.64 -106.95  25.0    18.91 -107.67     3.36      9.49   0.50    0.12  0.50  43.3 GIF
   20210707 19:10:00  HIMAWARI   NearIR   19.67 -106.88  25.0    18.97 -106.51     2.80      7.93   0.05    0.11  0.60  47.7 GIF
   20210707 19:40:00  HIMAWARI   NearIR   19.70 -106.81  25.0    18.80 -107.26     1.06      2.98   0.50    0.23  1.59  58.9 GIF
   20210707 20:10:00  HIMAWARI       IR   20.47 -106.18  20.0    19.42 -107.76     0.00      0.00    N/A    0.00  0.00   0.0 GIF
   20210707 20:30:00  HIMAWARI   NearIR   20.49 -106.15  20.0    19.41 -106.47     0.59      1.68   0.05    0.37  2.83  66.2 GIF
   20210707 21:10:00  HIMAWARI   NearIR   20.50 -106.08  20.0    19.45 -106.22     1.17      3.30   0.15    0.21  1.44  59.8 GIF
   20210707 21:40:00  HIMAWARI   NearIR   20.52 -106.03  20.0    19.27 -106.25     0.64      1.81   0.10    0.35  2.62  75.9 GIF
   20210707 22:10:00  HIMAWARI   NearIR   20.53 -105.98  20.0    19.43 -106.38     3.36      9.49   0.05    0.08  0.50  37.1 GIF
   20210707 22:40:00  HIMAWARI   NearIR   20.55 -105.93  20.0    19.55 -107.21     0.67      1.90   0.05    0.33  2.49  61.9 GIF
   20210707 23:10:00    SSMI18 85-92GHz   20.55 -105.93  20.0    19.91 -106.30     0.34      0.97    N/A    0.69  4.86   0.0 GIF
   20210707 23:40:00    SSMI18 85-92GHz   20.55 -105.93  20.0    19.92 -106.25     0.34      0.97    N/A    0.69  4.78   0.0 GIF
   20210708 00:10:00    SSMI18 85-92GHz   20.55 -105.93  20.0    19.93 -106.20     0.34      0.97    N/A    0.69  4.69   0.0 GIF
   20210708 00:40:00  HIMAWARI       IR   20.59 -105.72  20.0    21.14 -103.88     0.20      0.57   0.05    1.06  8.38 100.0 GIF
   20210708 01:10:00    SSMI18 85-92GHz   20.55 -105.93  20.0    19.95 -106.09     0.34      0.97    N/A    0.69  4.46   0.0 GIF
   20210708 01:40:00  HIMAWARI      Vis   20.62 -105.62  20.0    20.59 -105.14     0.34      0.97   0.30    0.40  4.90  66.2 GIF
   20210708 02:10:00    SSMI17 85-92GHz   20.61 -105.65  20.0    21.03 -105.52     0.38      1.07    N/A    0.56  4.39   0.0 GIF
   20210708 02:30:00  HIMAWARI      Vis   20.63 -105.54  20.0    20.63 -105.06     0.29      0.82   0.05    0.46  5.75  71.1 GIF
   20210708 03:10:00  HIMAWARI      Vis   20.65 -105.47  20.0    20.80 -104.94     0.30      0.86   0.05    0.44  5.54  83.0 GIF
   20210708 03:40:00    SSMI17 85-92GHz   20.61 -105.65  20.0    21.06 -105.37     0.38      1.07    N/A    0.56  4.13   0.0 GIF
   20210708 04:10:00  HIMAWARI      Vis   20.67 -105.37  20.0    20.72 -104.97     0.31      0.87   0.25    0.44  5.46  79.5 GIF
   20210708 04:40:00  HIMAWARI       IR   20.68 -105.33  20.0    21.20 -104.55     0.35      0.99   0.05    0.69  4.79  98.1 GIF
   20210708 05:10:00    SSMI17 85-92GHz   20.61 -105.65  20.0    21.08 -105.23     0.38      1.07    N/A    0.56  3.82   0.0 GIF
   20210708 05:40:00    SSMI17 85-92GHz   20.61 -105.65  20.0    21.09 -105.18     0.38      1.07    N/A    0.56  3.71   0.0 GIF
   20210708 06:10:00  HIMAWARI       IR   20.70 -105.18  20.0    19.65 -106.76     0.32      0.89   0.05    0.75  5.31 100.0 GIF
   20210708 06:40:00    SSMI17 85-92GHz   20.61 -105.65  20.0    21.11 -105.09     0.38      1.07    N/A    0.56  3.49   0.0 GIF
   20210708 07:10:00  HIMAWARI      Vis   20.72 -105.09  20.0    20.72 -105.79     0.32      0.89   0.05    0.42  5.31  70.1 GIF
   20210708 07:40:00  HIMAWARI      Vis   20.73 -105.05  20.0    20.53 -105.61     0.30      0.86   0.50    0.44  5.54  74.4 GIF
   20210708 08:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.59 -104.47     0.37      1.05    N/A    0.58  4.22   0.0 GIF
   20210708 08:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.60 -104.42     0.37      1.05    N/A    0.58  4.12   0.0 GIF
   20210708 09:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.61 -104.38     0.37      1.05    N/A    0.58  4.01   0.0 GIF
   20210708 09:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.62 -104.34     0.37      1.05    N/A    0.58  3.90   0.0 GIF
   20210708 10:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.63 -104.30     0.37      1.05    N/A    0.58  3.79   0.0 GIF
   20210708 10:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.64 -104.26     0.37      1.05    N/A    0.58  3.68   0.0 GIF
   20210708 11:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.65 -104.23     0.37      1.05    N/A    0.58  3.56   0.0 GIF
   20210708 11:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.66 -104.19     0.37      1.05    N/A    0.58  3.45   0.0 GIF
   20210708 12:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.67 -104.15     0.37      1.05    N/A    0.58  3.35   0.0 GIF
   20210708 12:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.68 -104.12     0.37      1.05    N/A    0.58  3.24   0.0 GIF
   20210708 13:10:00  HIMAWARI       IR   20.85 -104.63  20.0    20.22 -106.56     0.45      1.29   0.10    0.58  3.69  99.5 GIF
   20210708 13:40:00  HIMAWARI   NearIR   20.86 -104.60  20.0    20.04 -106.26     0.53      1.50   0.05    0.41  3.17  76.2 GIF
   20210708 14:10:00  HIMAWARI   NearIR   20.88 -104.57  20.0    20.33 -106.47     0.48      1.36   0.05    0.44  3.48  66.4 GIF
   20210708 14:30:00  HIMAWARI   NearIR   20.89 -104.55  20.0    20.41 -106.45     0.41      1.17   0.10    0.51  4.07  98.6 GIF
   20210708 15:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.75 -103.97     0.37      1.05    N/A    0.58  2.76   0.0 GIF
   20210708 15:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.76 -103.95     0.37      1.05    N/A    0.58  2.67   0.0 GIF
   20210708 16:10:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.78 -103.93     0.37      1.05    N/A    0.58  2.59   0.0 GIF
   20210708 16:40:00     AMSR2 85-92GHz   20.70 -105.20  20.0    20.79 -103.90     0.37      1.05    N/A    0.58  2.51   0.0 GIF
   20210708 17:10:00  HIMAWARI   NearIR   20.97 -104.43  20.0    20.59 -106.38     0.64      1.81   0.05    0.34  2.62  76.7 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