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Geo IR 85-92GHz
Date/Time_(UTC) Source Sensor Vmax(kts) ARCHER Lat Lon Geo-ref Lat Lon 50% cert. rad. 95% cert. rad. Eye diam (deg) % cert. of eye
20260822 09:25:45   GMI 37GHz 95 19.15 145.34 19.10 145.40 0.11 0.31 0.40 ***
20260822 09:25:45 * GMI 89-92GHz 95 19.25 145.39 19.20 145.46 0.10 0.28 0.60 100
20260822 08:45:20   SSMIS-16 89-92GHz 95 19.12 145.60 19.15 145.56 0.10 0.29 0.50 100
20260822 08:34:42   SSMIS-17 89-92GHz 97 *** *** *** *** 0.17 0.48 5.00 0
20260822 08:00:00   HIMAWARI9 IR 95 18.78 145.70 18.92 145.53 0.11 0.30 0.10 100
20260822 08:00:00   HIMAWARI9 SWIR 95 18.88 145.65 19.02 145.48 0.16 0.46 0.30 ***
20260822 06:17:13 * SSMIS-18 89-92GHz 92 18.59 145.84 18.56 145.89 0.11 0.30 0.60 100
20260822 05:30:00   HIMAWARI9 IR 90 18.39 146.00 18.45 145.94 0.15 0.42 0.20 100
20260822 05:30:00   HIMAWARI9 SWIR 90 18.39 145.98 18.45 145.92 0.18 0.52 0.20 ***
20260822 02:30:00   HIMAWARI9 IR 85 18.28 146.19 18.34 146.13 0.30 0.85 0.20 55
20260822 02:30:00   HIMAWARI9 SWIR 85 18.23 146.08 18.29 146.02 1.73 4.88 0.30 ***
20260821 23:30:00   HIMAWARI9 IR 86 17.98 146.70 18.04 146.63 0.16 0.45 0.20 68
20260821 23:30:00   HIMAWARI9 SWIR 86 17.93 146.60 17.99 146.53 1.85 5.24 0.20 ***
20260821 21:32:20 * SSMIS-16 89-92GHz 81 17.73 146.73 17.66 146.80 0.12 0.33 0.60 100
20260821 20:00:00   HIMAWARI9 IR 80 17.43 146.96 17.57 146.83 0.98 2.76 0.10 0
20260821 20:00:00   HIMAWARI9 SWIR 80 16.86 146.10 16.99 145.97 0.32 0.91 0.10 ***
20260821 19:41:43   SSMIS-17 89-92GHz 80 *** *** *** *** 0.18 0.52 0.30 4
20260821 19:05:10 * SSMIS-18 89-92GHz 79 17.38 147.16 17.24 147.31 0.10 0.30 0.70 100
20260821 17:30:00   HIMAWARI9 IR 75 16.78 147.04 16.87 146.98 0.32 0.91 0.10 3
20260821 17:30:00   HIMAWARI9 SWIR 75 16.75 147.02 16.84 146.95 0.16 0.45 0.40 ***
20260821 14:00:00 * HIMAWARI9 IR 70 16.28 147.85 16.47 147.72 0.21 0.60 0.10 89
20260821 14:00:00   HIMAWARI9 SWIR 70 16.28 147.85 16.47 147.72 0.22 0.61 0.10 ***
20260821 11:30:00   HIMAWARI9 IR 65 16.05 148.29 16.15 148.26 0.27 0.76 0.10 100
20260821 11:30:00   HIMAWARI9 SWIR 65 16.08 148.26 16.17 148.23 3.36 9.49 0.40 ***
20260821 08:00:00   HIMAWARI9 IR 60 15.73 148.56 15.91 148.49 0.31 0.89 0.10 87
20260821 08:00:00   HIMAWARI9 SWIR 60 15.45 148.38 15.64 148.31 0.56 1.57 0.10 ***
20260821 06:30:53 * SSMIS-18 89-92GHz 50 15.32 148.54 15.22 148.58 0.16 0.44 1.40 65
20260821 05:30:00   HIMAWARI9 IR 49 14.78 148.66 14.80 148.61 0.18 0.52 0.10 79
20260821 05:30:00   HIMAWARI9 SWIR 49 14.88 148.79 14.90 148.74 0.35 1.00 0.10 ***
20260821 02:30:00   HIMAWARI9 IR 45 14.33 149.06 14.35 149.02 3.36 9.49 0.20 1
20260821 02:30:00   HIMAWARI9 SWIR 45 14.33 149.06 14.35 149.02 1.10 3.11 0.20 ***
20260820 23:30:00   HIMAWARI9 IR 44 14.48 150.42 14.56 150.37 3.36 9.49 0.50 4
20260820 23:30:00   HIMAWARI9 SWIR 44 13.91 149.33 13.99 149.28 0.67 1.88 0.30 ***
20260820 22:35:44   GMI 37GHz 42 14.07 148.90 14.31 148.75 0.20 0.57 0.70 ***
20260820 22:35:44   GMI 89-92GHz 42 14.17 148.90 14.41 148.75 0.23 0.65 1.20 22
20260820 20:30:00   HIMAWARI9 IR 40 13.16 150.38 13.24 150.33 3.36 9.49 0.40 9
20260820 20:30:00   HIMAWARI9 SWIR 40 13.36 149.92 13.44 149.87 3.36 9.49 0.10 ***
20260820 19:56:56 * SSMIS-17 89-92GHz 40 14.06 149.25 14.23 149.14 0.40 1.14 3.70 4
20260820 17:30:00   HIMAWARI9 IR 46 13.84 151.17 13.92 151.12 0.99 2.80 0.90 47
20260820 17:30:00   HIMAWARI9 SWIR 46 13.89 151.12 13.97 151.07 2.34 6.61 1.00 ***
20260820 14:30:00   HIMAWARI9 IR 43 11.45 150.46 11.52 150.41 3.36 9.49 0.10 2
20260820 14:30:00   HIMAWARI9 SWIR 43 12.07 149.85 12.15 149.80 3.36 9.49 0.10 ***
20260820 11:30:00   HIMAWARI9 IR 37 11.88 150.30 11.96 150.24 3.36 9.49 0.10 8
20260820 11:30:00 * HIMAWARI9 SWIR 37 12.23 150.48 12.31 150.42 0.59 1.66 0.20 ***
20260820 08:00:00   HIMAWARI9 IR 35 11.63 151.08 11.78 150.97 3.36 9.49 0.50 7
20260820 08:00:00   HIMAWARI9 SWIR 35 11.88 150.60 12.03 150.48 2.98 8.44 0.20 ***
20260820 05:30:00   HIMAWARI9 IR 39 12.26 151.52 12.30 151.46 3.36 9.49 0.60 29
20260820 05:30:00   HIMAWARI9 SWIR 39 12.44 151.39 12.48 151.33 2.60 7.36 0.60 ***
20260820 02:30:00 * HIMAWARI9 IR 35 11.81 152.29 11.85 152.24 0.67 1.90 0.20 64
20260820 02:30:00   HIMAWARI9 SWIR 35 11.18 150.63 11.23 150.58 0.77 2.16 1.00 ***
20260819 23:00:00   HIMAWARI9 IR 37 11.19 152.43 11.34 152.23 3.36 9.49 0.90 1
20260819 23:00:00   HIMAWARI9 SWIR 37 11.06 151.64 11.21 151.44 0.69 1.94 0.20 ***
20260819 20:12:02   SSMIS-17 89-92GHz 35 *** *** *** *** 0.57 1.60 0.90 0
20260819 20:10:00   HIMAWARI9 IR 35 9.99 152.55 10.11 152.38 1.09 3.07 0.20 48
20260819 20:10:00   HIMAWARI9 SWIR 35 10.14 152.35 10.26 152.18 1.48 4.19 0.20 ***
20260819 17:54:29   SSMIS-18 89-92GHz 38 11.24 152.22 11.25 152.21 0.40 1.14 1.30 4
20260819 17:30:00   HIMAWARI9 IR 37 9.91 152.82 10.00 152.74 1.43 4.03 0.40 39
20260819 17:30:00 * HIMAWARI9 SWIR 37 9.91 152.79 10.00 152.72 0.33 0.93 0.40 ***
20260819 14:30:00   HIMAWARI9 IR 35 9.41 154.41 9.50 154.34 3.36 9.49 0.50 7
20260819 14:30:00   HIMAWARI9 SWIR 35 9.76 153.63 9.85 153.55 0.78 2.20 0.30 ***
20260819 11:30:00   HIMAWARI9 IR 36 8.69 154.22 8.76 154.19 0.45 1.27 0.10 51
20260819 11:30:00   HIMAWARI9 SWIR 36 9.26 153.76 9.34 153.73 2.00 5.64 0.10 ***
20260819 09:59:53 * GMI 37GHz 35 9.73 154.04 9.58 154.10 0.37 1.06 0.90 ***
20260819 09:59:53   GMI 89-92GHz 35 9.13 154.09 8.98 154.15 0.49 1.37 3.40 2
20260819 08:30:00   HIMAWARI9 IR 35 7.18 154.14 7.26 154.11 0.49 1.38 0.90 47
20260819 08:30:00   HIMAWARI9 SWIR 35 7.88 153.76 7.96 153.73 2.42 6.83 0.40 ***
20260819 07:34:01   SSMIS-17 89-92GHz 35 *** *** *** *** 0.47 1.33 2.20 1
20260819 05:10:00   HIMAWARI9 IR 31 9.33 155.81 9.40 155.80 3.36 9.49 0.50 10
20260819 05:10:00   HIMAWARI9 SWIR 31 9.95 155.28 10.02 155.27 0.78 2.21 0.30 ***
20260819 02:30:00   HIMAWARI9 IR 28 10.97 154.71 11.01 154.70 3.36 9.49 0.60 1
20260819 02:30:00   HIMAWARI9 SWIR 28 10.62 155.49 10.66 155.48 2.50 7.06 0.20 ***
20260818 23:30:00   HIMAWARI9 IR 26 10.40 155.62 10.38 155.59 2.87 8.11 0.30 3
20260818 23:30:00   HIMAWARI9 SWIR 26 10.65 155.16 10.63 155.13 0.63 1.79 0.10 ***
20260818 22:24:54 * GMI 37GHz 25 8.57 154.70 8.64 154.79 0.25 0.71 2.00 ***
20260818 22:24:54   GMI 89-92GHz 25 8.52 154.50 8.59 154.59 0.58 1.65 3.30 1
20260818 20:35:14   SSMIS-16 89-92GHz 25 *** *** *** *** 0.61 1.71 2.90 1
20260818 20:30:00   HIMAWARI9 IR 25 9.88 155.98 9.85 155.95 3.36 9.49 0.10 9
20260818 20:30:00   HIMAWARI9 SWIR 25 9.85 156.03 9.83 156.00 0.37 1.03 0.20 ***
20260818 18:09:17 * SSMIS-18 89-92GHz 26 7.79 155.61 7.80 155.62 0.35 0.98 3.00 23
20260818 17:30:00   HIMAWARI9 IR 26 9.61 156.01 9.64 155.98 3.25 9.18 0.30 43
20260818 17:30:00   HIMAWARI9 SWIR 26 9.59 156.08 9.62 156.06 0.61 1.72 0.40 ***
20260818 14:30:00   HIMAWARI9 IR 25 6.38 153.60 6.41 153.58 3.36 9.49 0.80 1
20260818 14:30:00 * HIMAWARI9 SWIR 25 6.93 153.15 6.96 153.13 0.50 1.40 0.50 ***

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 3-hr 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: ARCHER Track page

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