Tropical Depression 08P


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.1
 

                                         -------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    .
   20250111 03:30:20   GOES-18     SWIR  -20.25 -166.54  40.0   -21.10 -164.63    2.90      0.30     N/A    0.23  1.63   0.0 PNG
   20250111 04:00:20   GOES-18     SWIR  -20.30 -166.39  40.0   -20.80 -164.34    2.85      0.10     N/A    0.23  1.67   0.0 PNG
   20250111 04:30:20   GOES-18     SWIR  -20.35 -166.24  40.0   -21.15 -164.30    0.89      0.05     N/A    0.65  5.31   0.0 PNG
   20250111 05:00:20   GOES-18       IR  -20.40 -166.09  40.0   -21.25 -164.17    0.63      0.40    0.22    0.97  7.55  19.7 PNG
   20250111 05:30:20  SSMISF16    89GHz  -20.44 -165.94  40.0   -21.29 -164.34    0.56      2.50     N/A    1.80  8.54   0.0 PNG
   20250111 06:00:20   GOES-18       IR  -20.49 -165.79  40.0   -21.49 -163.95    0.55      0.35    0.19    1.09  8.71  25.6 PNG
   20250111 06:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -21.39 -164.04    0.56      2.50     N/A    1.80  8.04   0.0 PNG
   20250111 07:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -21.43 -163.89    0.56      2.50     N/A    1.80  7.75   0.0 PNG
   20250111 07:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -21.48 -163.74    0.56      2.50     N/A    1.80  7.43   0.0 PNG
   20250111 08:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.39 -162.07    0.56      2.50     N/A    1.80  7.11   0.0 PNG
   20250111 08:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.45 -161.94    0.56      2.50     N/A    1.80  6.79   0.0 PNG
   20250111 09:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.47 -161.79    0.56      2.50     N/A    1.80  6.47   0.0 PNG
   20250111 09:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.49 -161.64    0.56      2.50     N/A    1.80  6.17   0.0 PNG
   20250111 10:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.54 -161.51    0.56      2.50     N/A    1.80  5.87   0.0 PNG
   20250111 10:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.60 -161.37    0.56      2.50     N/A    1.80  5.59   0.0 PNG
   20250111 11:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.61 -161.21    0.56      2.50     N/A    1.80  5.32   0.0 PNG
   20250111 11:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.66 -161.08    0.56      2.50     N/A    1.80  5.06   0.0 PNG
   20250111 12:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.66 -160.91    0.56      2.50     N/A    1.80  4.82   0.0 PNG
   20250111 12:30:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.72 -160.77    0.56      2.50     N/A    1.80  4.60   0.0 PNG
   20250111 13:00:21  SSMISF16    89GHz  -20.44 -165.94  40.0   -22.77 -160.63    0.56      2.50     N/A    1.80  4.39   0.0 PNG
   20250111 13:30:21   GOES-18       IR  -21.90 -162.15  35.0   -22.28 -160.83    1.03      0.05    0.36    0.68  4.62   5.9 PNG
   20250111 14:00:21     AMSR2    89GHz  -22.03 -160.96  35.0   -21.88 -161.50    0.62      1.35     N/A    1.55  7.71   0.0 PNG
   20250111 14:30:21     AMSR2    89GHz  -22.03 -160.96  35.0   -21.92 -161.38    0.62      1.35     N/A    1.55  6.86   0.0 PNG
   20250111 15:00:21     AMSR2    89GHz  -22.03 -160.96  35.0   -21.95 -161.24    0.62      1.35     N/A    1.55  6.59   0.0 PNG
   20250111 15:30:21     AMSR2    89GHz  -22.03 -160.96  35.0   -21.99 -161.10    0.62      1.35     N/A    1.55  6.31   0.0 PNG
   20250111 16:00:21     AMSR2    89GHz  -22.03 -160.96  35.0   -22.02 -160.96    0.62      1.35     N/A    1.55  6.04   0.0 PNG
   20250111 16:30:21     AMSR2    89GHz  -22.03 -160.96  35.0   -22.05 -160.81    0.62      1.35     N/A    1.55  5.78   0.0 PNG
   20250111 17:00:21  SSMISF17    89GHz  -22.23 -160.15  35.0   -22.18 -160.20    0.38      0.05    0.13    3.06 12.65   6.8 PNG
   20250111 17:30:21  SSMISF17    89GHz  -22.23 -160.15  35.0   -22.21 -160.03    0.38      0.05    0.13    3.06 11.42   6.8 PNG
   20250111 18:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.29 -159.92    0.40      1.80    0.14    2.82 11.87   1.2 PNG
   20250111 18:30:21  SSMISF17    89GHz  -22.23 -160.15  35.0   -22.27 -159.74    0.38      0.05    0.13    3.06 10.18   6.8 PNG
   20250111 19:00:21  SSMISF17    89GHz  -22.23 -160.15  35.0   -22.30 -159.59    0.38      0.05    0.13    3.06  9.57   6.8 PNG
   20250111 19:30:21   GOES-18      Vis  -22.38 -159.44  40.0   -22.08 -158.74    0.53      0.35     N/A    0.68  9.01   0.0 PNG
   20250111 20:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.41 -159.30    0.40      1.80    0.14    2.82  8.48   1.2 PNG
   20250111 20:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.44 -159.15    0.40      1.80    0.14    2.82  7.97   1.2 PNG
   20250111 21:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.47 -159.00    0.40      1.80    0.14    2.82  7.50   1.2 PNG
   20250111 21:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.50 -158.86    0.40      1.80    0.14    2.82  7.05   1.2 PNG
   20250111 22:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.52 -158.71    0.40      1.80    0.14    2.82  6.64   1.2 PNG
   20250111 22:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.55 -158.57    0.40      1.80    0.14    2.82  6.25   1.2 PNG
   20250111 23:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.58 -158.43    0.40      1.80    0.14    2.82  5.90   1.2 PNG
   20250111 23:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.60 -158.29    0.40      1.80    0.14    2.82  5.57   1.2 PNG
   20250112 00:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.63 -158.15    0.40      1.80    0.14    2.82  5.26   1.2 PNG
   20250112 00:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.62 -158.01    0.40      1.80    0.14    2.82  4.98   1.2 PNG
   20250112 01:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.64 -157.88    0.40      1.80    0.14    2.82  4.72   1.2 PNG
   20250112 01:30:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -22.67 -157.75    0.40      1.80    0.14    2.82  4.48   1.2 PNG
   20250112 02:00:21  SSMISF16    89GHz  -22.29 -159.87  35.0   -21.92 -158.44    0.40      1.80    0.14    2.82  4.26   1.2 PNG
   20250112 02:30:21     AMSR2    89GHz  -21.90 -158.30  35.0   -21.90 -158.68    0.99      0.70    0.35    0.66  4.78   1.8 PNG
   20250112 03:00:21     AMSR2    89GHz  -21.90 -158.30  35.0   -21.90 -158.58    0.99      0.70    0.35    0.66  4.37   1.8 PNG
   20250112 03:30:21     AMSR2    89GHz  -21.90 -158.30  35.0   -22.72 -157.58    0.99      0.70    0.35    0.66  4.25   1.8 PNG
   20250112 04:00:21     AMSR2    89GHz  -21.90 -158.30  35.0   -21.90 -158.38    0.99      0.70    0.35    0.66  4.13   1.8 PNG
   20250112 04:30:21     AMSR2    89GHz  -21.90 -158.30  35.0   -21.90 -158.28    0.99      0.70    0.35    0.66  4.01   1.8 PNG
   20250112 05:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.96    0.78      0.05    0.28    1.05  6.08  23.9 PNG
   20250112 05:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.87    0.78      0.05    0.28    1.05  5.91  23.9 PNG
   20250112 06:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.77    0.78      0.05    0.28    1.05  5.77  23.9 PNG
   20250112 06:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.68    0.78      0.05    0.28    1.05  5.61  23.9 PNG
   20250112 07:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.58    0.78      0.05    0.28    1.05  5.44  23.9 PNG
   20250112 07:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.49    0.78      0.05    0.28    1.05  5.26  23.9 PNG
   20250112 08:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.39    0.78      0.05    0.28    1.05  5.08  23.9 PNG
   20250112 08:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.30    0.78      0.05    0.28    1.05  4.89  23.9 PNG
   20250112 09:00:21   GOES-18     SWIR  -21.90 -157.04  30.0   -22.35 -156.61    0.84      0.05     N/A    0.70  5.68   0.0 PNG
   20250112 09:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.11    0.78      0.05    0.28    1.05  4.54  23.9 PNG
   20250112 10:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -157.02    0.78      0.05    0.28    1.05  4.36  23.9 PNG
   20250112 10:30:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -156.92    0.78      0.05    0.28    1.05  4.19  23.9 PNG
   20250112 11:00:21  SSMISF17    89GHz  -21.90 -157.80  35.0   -22.80 -156.83    0.78      0.05    0.28    1.05  4.03  23.9 PNG
 
 
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