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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
20250811 06:21:17 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 0.20 ***
20250811 06:21:11 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 0.20 ***
20250811 03:20:52 AMSR2 85-92GHz 30.6 47.94 -22.30 47.92 -22.50 0.38 1.06 0.90 3.7
20250810 23:23:26 GMI 85-92GHz 31.4 *** *** *** *** *** *** 5.00 ***
20250810 19:53:02 SSMIS-16 85-92GHz 32.1 46.91 -24.13 46.94 -23.85 0.48 1.37 0.40 2.2
20250810 19:29:09 SSMIS-17 85-92GHz 32.2 47.24 -24.19 47.29 -23.78 0.46 1.31 0.10 1.4
20250810 17:48:52 SSMIS-17 85-92GHz 32.5 *** *** *** *** *** *** 5.00 ***
20250810 16:23:33 SSMIS-18 85-92GHz 32.8 47.22 -24.83 47.28 -24.39 0.50 1.41 0.20 1.3
20250810 16:23:31 SSMIS-18 85-92GHz 32.8 47.27 -24.76 47.33 -24.31 0.44 1.24 0.70 1.5
20250810 08:24:45 SSMIS-16 85-92GHz 34.5 *** *** *** *** *** *** 1.40 ***
20250810 08:13:27 * GMI 85-92GHz 34.5 47.13 -26.97 47.15 -26.80 0.36 1.02 0.20 4.1
20250810 08:00:39 SSMIS-17 85-92GHz 34.6 47.07 -26.97 47.10 -26.73 0.43 1.21 1.40 2.3
20250810 06:35:31 SSMIS-18 85-92GHz 34.9 47.22 -28.16 47.19 -28.44 0.56 1.59 2.90 0.5
20250810 06:34:22 SSMIS-18 85-92GHz 34.9 47.27 -28.10 47.24 -28.36 0.53 1.50 2.90 1.1
20250810 00:08:27 GMI 85-92GHz 37.4 *** *** *** *** *** *** 1.80 ***
20250809 20:07:00 * SSMIS-16 85-92GHz 39.1 46.43 -30.96 46.45 -30.75 0.42 1.19 1.70 2.1
20250809 14:42:15 AMSR2 85-92GHz 42.7 46.06 -32.92 46.06 -32.90 0.41 1.16 2.50 2.7
20250809 10:20:02 SSMIS-16 85-92GHz 46.4 *** *** *** *** *** *** 1.00 ***
20250809 08:53:26 GMI 85-92GHz 47.6 45.97 -35.15 45.96 -35.21 0.35 0.98 0.20 6.5
20250809 06:50:25 SSMIS-18 85-92GHz 49.3 45.85 -36.42 45.78 -36.82 0.42 1.19 1.50 3.4
20250809 06:48:22 SSMIS-18 85-92GHz 49.3 *** *** *** *** *** *** 0.30 ***
20250809 05:12:15 AMSR2 85-92GHz 50.7 45.70 -37.02 45.73 -36.82 0.36 1.03 0.20 6.6
20250808 20:20:56 SSMIS-16 85-92GHz 58.0 45.11 -40.78 45.14 -40.64 0.38 1.06 1.00 4.9
20250808 18:32:06 SSMIS-18 85-92GHz 59.6 44.85 -41.57 44.78 -41.85 0.46 1.30 4.00 3.3
20250808 15:37:04 AMSR2 85-92GHz 61.0 44.82 -42.18 44.72 -42.48 0.28 0.80 2.00 8.9
20250808 07:04:50 * SSMIS-18 85-92GHz 64.5 42.99 -44.88 42.82 -45.31 0.36 1.02 1.00 1.9
20250808 04:30:07 * AMSR2 85-92GHz 63.8 43.65 -44.13 43.82 -43.73 0.27 0.77 0.40 9.1
20250807 18:45:42 * SSMIS-18 85-92GHz 55.6 41.65 -47.95 41.52 -48.28 0.32 0.90 1.30 14.2
20250807 16:31:41 AMSR2 85-92GHz 53.4 41.40 -49.49 41.57 -49.08 0.36 1.01 1.00 5.7
20250807 05:26:28 AMSR2 85-92GHz 45.0 *** *** *** *** *** *** 1.80 ***
20250806 22:28:35 SSMIS-16 85-92GHz 45.0 39.80 -55.71 39.80 -55.28 0.47 1.34 3.30 1.2
20250806 18:59:46 * SSMIS-18 85-92GHz 45.0 39.63 -56.51 39.63 -56.91 0.33 0.92 1.30 17.6
20250806 17:26:55 AMSR2 85-92GHz 45.0 39.73 -57.24 39.73 -57.14 0.36 1.01 1.70 6.6
20250806 12:38:26 GMI 85-92GHz 45.0 *** *** *** *** *** *** 1.80 ***
20250806 06:22:05 AMSR2 85-92GHz 40.0 39.33 -60.52 39.27 -60.67 0.45 1.27 1.00 6.8
20250806 02:53:27 GMI 85-92GHz 37.4 *** *** *** *** *** *** 5.00 ***
20250805 22:20:00 * SSMIS-17 85-92GHz 35.0 38.47 -62.17 38.59 -61.94 0.38 1.07 0.50 9.8
20250805 19:13:27 SSMIS-18 85-92GHz 35.0 37.81 -61.98 37.69 -62.21 0.47 1.33 1.40 2.6
20250805 16:43:35 AMSR2 85-92GHz 35.0 37.98 -62.98 38.06 -62.80 0.27 0.75 1.50 22.4
20250804 22:33:37 * SSMIS-17 85-92GHz 40.0 35.68 -65.87 35.83 -65.71 0.40 1.13 1.30 3.3
20250804 17:38:00 AMSR2 85-92GHz 40.0 35.20 -67.12 35.22 -67.10 0.35 0.99 1.60 16.2
20250804 11:32:34 SSMIS-16 85-92GHz 40.0 34.66 -68.32 34.68 -68.28 0.52 1.48 1.40 1.6
20250804 11:11:19 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 1.30 ***
20250804 06:35:49 AMSR2 85-92GHz 40.0 34.45 -69.00 34.38 -69.13 0.58 1.65 1.90 0.7
20250804 04:18:26 GMI 85-92GHz 40.0 33.79 -69.16 33.88 -68.92 0.28 0.81 1.40 19.9
20250803 23:08:16 SSMIS-16 85-92GHz 40.0 33.26 -70.28 33.29 -70.17 0.51 1.44 2.50 3.4
20250803 22:47:21 SSMIS-17 85-92GHz 40.0 33.53 -70.28 33.58 -70.11 0.41 1.17 1.60 1.0

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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