Tropical Depression 18W
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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 .
20260820 21:20:00 HIMAWARI IR 20.13 108.37 25.0 19.33 107.86 9.49 0.15 3.36 0.21 0.50 22.4 PNG
20260820 21:50:00 HIMAWARI SWIR 20.13 108.37 25.0 19.28 106.98 2.32 0.05 N/A 0.28 2.05 0.0 PNG
20260820 22:20:00 HIMAWARI SWIR 20.10 108.40 25.0 19.30 107.41 4.50 0.10 N/A 0.16 1.05 0.0 PNG
20260820 23:00:00 SSMISF18 89GHz 20.10 108.40 25.0 19.95 108.72 0.96 0.20 0.34 0.71 4.96 4.2 PNG
20260820 23:30:00 SSMISF18 89GHz 20.10 108.40 25.0 19.97 108.70 0.96 0.20 0.34 0.71 4.51 4.2 PNG
20260821 00:00:00 SSMISF18 89GHz 20.10 108.40 25.0 19.97 108.69 0.96 0.20 0.34 0.71 4.38 4.2 PNG
20260821 00:30:00 SSMISF17 89GHz 20.12 108.39 25.0 20.12 109.03 0.99 0.20 0.35 0.66 4.78 3.4 PNG
20260821 01:00:00 SSMISF17 89GHz 20.12 108.39 25.0 20.13 109.00 0.99 0.20 0.35 0.66 4.55 3.4 PNG
20260821 01:30:00 HIMAWARI Vis 20.12 108.38 25.0 18.42 107.74 0.90 0.30 N/A 0.42 5.26 0.0 PNG
20260821 02:00:00 GMI 89GHz 20.13 108.37 25.0 18.53 109.59 0.75 2.50 N/A 1.14 6.36 0.0 PNG
20260821 02:20:00 GMI 89GHz 20.13 108.37 25.0 18.55 109.56 0.75 2.50 N/A 1.14 6.29 0.0 PNG
20260821 03:00:00 GMI 89GHz 20.13 108.37 25.0 18.56 109.56 0.75 2.50 N/A 1.14 6.11 0.0 PNG
20260821 03:30:00 GMI 89GHz 20.13 108.37 25.0 18.60 109.82 0.75 2.50 N/A 1.14 5.94 0.0 PNG
20260821 04:00:00 GMI 89GHz 20.13 108.37 25.0 18.61 109.82 0.75 2.50 N/A 1.14 5.75 0.0 PNG
20260821 04:30:00 GMI 89GHz 20.13 108.37 25.0 18.61 109.82 0.75 2.50 N/A 1.14 5.56 0.0 PNG
20260821 05:00:00 GMI 89GHz 20.13 108.37 25.0 18.62 109.82 0.75 2.50 N/A 1.14 5.36 0.0 PNG
20260821 05:30:00 GMI 89GHz 20.13 108.37 25.0 18.62 109.82 0.75 2.50 N/A 1.14 5.17 0.0 PNG
20260821 06:00:00 GMI 89GHz 20.13 108.37 25.0 18.63 109.82 0.75 2.50 N/A 1.14 4.97 0.0 PNG
20260821 06:30:00 GMI 89GHz 20.13 108.37 25.0 18.63 109.82 0.75 2.50 N/A 1.14 4.78 0.0 PNG
20260821 07:00:00 GMI 89GHz 20.13 108.37 25.0 18.64 109.82 0.75 2.50 N/A 1.14 4.59 0.0 PNG
20260821 07:30:00 HIMAWARI Vis 20.23 108.60 30.0 18.23 108.60 0.60 0.45 N/A 0.60 7.89 0.0 PNG
20260821 08:00:00 GMI 89GHz 20.13 108.37 25.0 18.65 109.82 0.75 2.50 N/A 1.14 4.23 0.0 PNG
20260821 08:30:00 GMI 89GHz 20.13 108.37 25.0 19.10 109.77 0.75 2.50 N/A 1.14 4.06 0.0 PNG
20260821 09:00:00 GMI 89GHz 20.13 108.37 25.0 18.66 109.82 0.75 2.50 N/A 1.14 3.90 0.0 PNG
20260821 09:30:00 GMI 89GHz 20.13 108.37 25.0 19.12 109.82 0.75 2.50 N/A 1.14 3.75 0.0 PNG
20260821 10:00:00 GMI 89GHz 20.13 108.37 25.0 19.13 109.82 0.75 2.50 N/A 1.14 3.60 0.0 PNG
20260821 10:30:00 GMI 89GHz 20.13 108.37 25.0 19.14 109.83 0.75 2.50 N/A 1.14 3.46 0.0 PNG
20260821 11:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.41 109.83 0.96 0.55 0.34 0.71 4.97 1.1 PNG
20260821 11:30:00 SSMISF17 89GHz 20.76 108.60 30.0 19.41 109.85 0.96 0.55 0.34 0.71 4.84 1.1 PNG
20260821 12:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.42 109.85 0.96 0.55 0.34 0.71 4.74 1.1 PNG
20260821 12:30:00 SSMISF17 89GHz 20.76 108.60 30.0 19.44 109.86 0.96 0.55 0.34 0.71 4.63 1.1 PNG
20260821 13:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.45 109.86 0.96 0.55 0.34 0.71 4.51 1.1 PNG
20260821 13:20:00 SSMISF17 89GHz 20.76 108.60 30.0 19.45 109.87 0.96 0.55 0.34 0.71 4.43 1.1 PNG
20260821 14:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.47 109.87 0.96 0.55 0.34 0.71 4.26 1.1 PNG
20260821 14:20:00 SSMISF17 89GHz 20.76 108.60 30.0 19.53 110.02 0.96 0.55 0.34 0.71 4.17 1.1 PNG
20260821 15:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.55 110.03 0.96 0.55 0.34 0.71 3.99 1.1 PNG
20260821 15:20:00 SSMISF17 89GHz 20.76 108.60 30.0 19.56 110.03 0.96 0.55 0.34 0.71 3.91 1.1 PNG
20260821 16:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.58 110.04 0.96 0.55 0.34 0.71 3.74 1.1 PNG
20260821 16:30:00 SSMISF17 89GHz 20.76 108.60 30.0 19.59 110.05 0.96 0.55 0.34 0.71 3.61 1.1 PNG
20260821 16:50:00 SSMISF17 89GHz 20.76 108.60 30.0 19.60 110.05 0.96 0.55 0.34 0.71 3.53 1.1 PNG
20260821 17:20:00 SSMISF17 89GHz 20.76 108.60 30.0 19.61 110.06 0.96 0.55 0.34 0.71 3.41 1.1 PNG
20260821 17:50:00 SSMISF17 89GHz 20.76 108.60 30.0 19.63 110.07 0.96 0.55 0.34 0.71 3.30 1.1 PNG
20260821 18:20:00 SSMISF17 89GHz 20.76 108.60 30.0 19.64 110.08 0.96 0.55 0.34 0.71 3.19 1.1 PNG
20260821 19:00:00 SSMISF17 89GHz 20.76 108.60 30.0 19.65 110.10 0.96 0.55 0.34 0.71 3.04 1.1 PNG
20260821 19:30:00 SSMISF17 89GHz 20.76 108.60 30.0 19.66 110.11 0.96 0.55 0.34 0.71 2.94 1.1 PNG
20260821 19:50:00 SSMISF17 89GHz 20.76 108.60 30.0 19.67 110.12 0.96 0.55 0.34 0.71 2.88 1.1 PNG
20260821 20:30:00 SSMISF17 89GHz 20.76 108.60 30.0 19.72 110.03 0.96 0.55 0.34 0.71 2.75 1.1 PNG
20260821 20:50:00 AMSR2 89GHz 21.10 108.80 35.0 21.60 108.48 1.21 0.35 0.43 0.39 3.92 21.3 PNG
20260821 21:30:00 AMSR2 89GHz 21.10 108.80 35.0 21.61 108.48 1.21 0.35 0.43 0.39 3.52 21.3 PNG
20260821 22:00:00 AMSR2 89GHz 21.10 108.80 35.0 21.62 108.47 1.21 0.35 0.43 0.39 3.44 21.3 PNG
20260821 22:30:00 SSMISF18 89GHz 21.15 108.80 35.0 19.55 109.34 1.08 0.15 0.38 0.54 4.40 0.8 PNG
20260821 23:00:00 SSMISF18 89GHz 21.15 108.80 35.0 19.54 109.33 1.08 0.15 0.38 0.54 4.09 0.8 PNG
20260821 23:20:00 SSMISF18 89GHz 21.15 108.80 35.0 19.55 109.33 1.08 0.15 0.38 0.54 4.03 0.8 PNG
20260822 00:00:00 SSMISF18 89GHz 21.15 108.80 35.0 19.56 109.32 1.08 0.15 0.38 0.54 3.89 0.8 PNG
20260822 00:30:00 HIMAWARI SWIR 21.19 108.78 35.0 19.41 109.51 1.21 0.15 N/A 0.49 3.91 0.0 PNG
20260822 01:00:00 GMI 89GHz 21.19 108.78 35.0 20.99 108.83 0.80 1.45 0.28 1.01 5.96 17.5 PNG
20260822 01:30:00 GMI 89GHz 21.19 108.78 35.0 20.98 108.81 0.80 1.45 0.28 1.01 5.90 17.5 PNG
20260822 02:00:00 GMI 89GHz 21.19 108.78 35.0 20.98 108.81 0.80 1.45 0.28 1.01 5.79 17.5 PNG
20260822 02:20:00 GMI 89GHz 21.19 108.78 35.0 20.90 108.76 0.80 1.45 0.28 1.01 5.71 17.5 PNG
20260822 03:00:00 GMI 89GHz 21.19 108.78 35.0 20.90 108.75 0.80 1.45 0.28 1.01 5.50 17.5 PNG
20260822 03:30:00 GMI 89GHz 21.19 108.78 35.0 20.90 108.74 0.80 1.45 0.28 1.01 5.34 17.5 PNG
20260822 04:00:00 GMI 89GHz 21.19 108.78 35.0 20.90 108.74 0.80 1.45 0.28 1.01 5.17 17.5 PNG
20260822 04:30:00 GMI 89GHz 21.19 108.78 35.0 20.91 108.73 0.80 1.45 0.28 1.01 4.99 17.5 PNG
20260822 05:00:00 GMI 89GHz 21.19 108.78 35.0 20.91 108.72 0.80 1.45 0.28 1.01 4.81 17.5 PNG
20260822 05:30:00 GMI 89GHz 21.19 108.78 35.0 20.91 108.71 0.80 1.45 0.28 1.01 4.64 17.5 PNG
20260822 06:00:00 GMI 89GHz 21.19 108.78 35.0 20.91 108.70 0.80 1.45 0.28 1.01 4.47 17.5 PNG
20260822 06:30:00 GMI 89GHz 21.19 108.78 35.0 20.91 108.69 0.80 1.45 0.28 1.01 4.30 17.5 PNG
20260822 07:00:00 GMI 89GHz 21.19 108.78 35.0 20.92 108.68 0.80 1.45 0.28 1.01 4.14 17.5 PNG
20260822 07:30:00 GMI 89GHz 21.19 108.78 35.0 20.92 108.66 0.80 1.45 0.28 1.01 3.98 17.5 PNG
20260822 08:00:00 GMI 89GHz 21.19 108.78 35.0 20.92 108.65 0.80 1.45 0.28 1.01 3.83 17.5 PNG
20260822 08:30:00 GMI 89GHz 21.19 108.78 35.0 20.81 108.16 0.80 1.45 0.28 1.01 3.68 17.5 PNG
20260822 09:00:00 GMI 89GHz 21.19 108.78 35.0 20.92 108.63 0.80 1.45 0.28 1.01 3.54 17.5 PNG
20260822 09:30:00 GMI 89GHz 21.19 108.78 35.0 20.78 108.15 0.80 1.45 0.28 1.01 3.41 17.5 PNG
20260822 10:00:00 HIMAWARI IR 20.97 108.10 30.0 19.02 108.55 1.15 0.35 0.41 0.63 4.14 42.8 PNG
20260822 10:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.71 108.73 1.19 1.35 0.42 0.41 3.97 2.4 PNG
20260822 11:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.71 108.71 1.19 1.35 0.42 0.41 3.93 2.4 PNG
20260822 11:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.71 108.70 1.19 1.35 0.42 0.41 3.87 2.4 PNG
20260822 12:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.70 108.69 1.19 1.35 0.42 0.41 3.80 2.4 PNG
20260822 12:30:00 HIMAWARI IR 20.91 108.07 30.0 19.36 106.73 1.15 0.05 0.41 0.63 4.12 48.5 PNG
20260822 13:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.69 108.66 1.19 1.35 0.42 0.41 3.64 2.4 PNG
20260822 13:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.69 108.65 1.19 1.35 0.42 0.41 3.56 2.4 PNG
20260822 14:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.68 108.64 1.19 1.35 0.42 0.41 3.47 2.4 PNG
20260822 14:20:00 SSMISF17 89GHz 20.96 108.09 30.0 20.67 108.64 1.19 1.35 0.42 0.41 3.41 2.4 PNG
20260822 15:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.65 108.64 1.19 1.35 0.42 0.41 3.29 2.4 PNG
20260822 15:20:00 SSMISF17 89GHz 20.96 108.09 30.0 20.64 108.64 1.19 1.35 0.42 0.41 3.23 2.4 PNG
20260822 15:50:00 SSMISF17 89GHz 20.96 108.09 30.0 20.63 108.63 1.19 1.35 0.42 0.41 3.14 2.4 PNG
20260822 16:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.61 108.63 1.19 1.35 0.42 0.41 3.02 2.4 PNG
20260822 17:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.60 108.62 1.19 1.35 0.42 0.41 2.93 2.4 PNG
20260822 17:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.58 108.62 1.19 1.35 0.42 0.41 2.85 2.4 PNG
20260822 17:50:00 SSMISF17 89GHz 20.96 108.09 30.0 20.58 108.62 1.19 1.35 0.42 0.41 2.79 2.4 PNG
20260822 18:30:00 SSMISF17 89GHz 20.96 108.09 30.0 20.56 108.61 1.19 1.35 0.42 0.41 2.68 2.4 PNG
20260822 19:00:00 SSMISF17 89GHz 20.96 108.09 30.0 20.55 108.60 1.19 1.35 0.42 0.41 2.61 2.4 PNG
20260822 19:20:00 SSMISF17 89GHz 20.96 108.09 30.0 20.54 108.60 1.19 1.35 0.42 0.41 2.56 2.4 PNG
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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.
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Links to related versions: - Track Plot - Summary table - Intensity Estimation |
