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
		20251001 20:23:27 * GMI 85-92GHz 54.0 36.85 -60.27 36.85 -60.09 0.30 0.85 1.00 10.2
		20251001 10:55:03 * SSMIS-17 85-92GHz 61.8 36.35 -65.63 36.51 -65.11 0.22 0.61 3.60 16.8
		20250930 23:20:35 SSMIS-16 85-92GHz 70.0 34.18 -68.63 34.24 -68.56 0.23 0.65 2.10 8.2
		20250930 21:03:26 GMI 85-92GHz 70.0 33.82 -69.44 33.76 -69.50 0.22 0.62 2.20 21.2
		20250930 17:31:36 AMSR2 85-92GHz 70.0 33.10 -69.87 33.14 -69.87 0.22 0.62 2.50 27.8
		20250930 11:18:26 GMI 85-92GHz 76.7 32.16 -69.76 32.25 -69.78 0.15 0.42 2.20 36.9
		20250930 06:30:33 AMSR2 85-92GHz 89.2 30.91 -69.62 30.72 -69.53 0.16 0.45 1.40 6.6
		20250929 21:48:27 * GMI 85-92GHz 110.5 29.17 -68.71 29.00 -68.63 0.14 0.40 3.50 27.5
		20250929 05:48:49 * AMSR2 85-92GHz 115.2 26.62 -66.58 26.61 -66.57 0.11 0.31 0.70 100.0
		20250928 17:41:15 * AMSR2 85-92GHz 125.3 24.96 -64.80 24.96 -64.81 0.10 0.27 0.80 100.0
		20250928 11:03:26 GMI 85-92GHz 130.8 *** *** *** *** *** *** 1.50 ***
		20250927 21:38:26 * GMI 85-92GHz 138.0 22.97 -61.19 22.90 -61.06 0.10 0.30 0.20 100.0 20250927 20:13:13 SSMIS-18 85-92GHz 136.9 22.82 -61.20 22.86 -61.27 0.12 0.34 0.20 100.0
		20250927 16:57:39 * AMSR2 85-92GHz 133.3 22.66 -60.58 22.69 -60.71 0.10 0.28 0.20 100.0
		20250927 11:48:27 GMI 85-92GHz 125.0 *** *** *** *** *** *** 2.80 ***
		20250927 06:02:04 * AMSR2 85-92GHz 125.0 22.20 -58.96 22.19 -58.93 0.10 0.28 0.20 100.0
		20250926 22:23:25 GMI 85-92GHz 113.3 *** *** *** *** *** *** 2.20 ***
		20250926 05:19:04 AMSR2 85-92GHz 63.9 21.95 -57.03 21.95 -57.04 0.11 0.31 0.50 100.0
		20250925 17:09:19 * AMSR2 85-92GHz 48.6 21.65 -56.28 21.69 -56.30 0.15 0.44 0.50 91.9
		20250925 11:38:27 GMI 85-92GHz 40.0 20.94 -56.84 20.94 -56.85 0.51 1.44 0.30 4.9
		20250925 07:43:33 * SSMIS-18 85-92GHz 40.0 20.97 -56.37 21.02 -56.47 0.26 0.75 1.30 20.2
		20250924 22:13:27 * GMI 85-92GHz 38.5 20.29 -55.25 20.12 -55.03 0.44 1.25 0.10 1.7

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