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
		20250831 11:31:01 SSMIS-16 85-92GHz 15.2 19.08 98.07 19.08 98.08 0.43 1.21 1.80 2.8 20250831 10:56:52 SSMIS-17 85-92GHz 15.4 18.65 98.98 18.68 98.87 0.51 1.43 0.20 0.3
		20250831 09:35:50 SSMIS-18 85-92GHz 16.0 18.55 99.20 18.51 99.43 0.38 1.07 0.50 1.7 20250831 08:43:26 GMI 85-92GHz 16.4 18.32 99.49 18.31 99.54 0.47 1.32 1.00 0.9
		20250830 23:44:16 * SSMIS-17 85-92GHz 20.1 18.15 101.11 18.15 101.17 0.46 1.29 1.50 1.4
		20250830 19:23:26 GMI 85-92GHz 22.6 18.20 102.51 18.18 102.20 0.48 1.34 0.40 2.7
		20250830 18:50:06 * AMSR2 85-92GHz 22.9 18.06 102.10 18.08 102.48 0.46 1.31 1.60 3.0
		20250830 11:44:35 * SSMIS-16 85-92GHz 25.6 17.25 104.95 17.25 105.03 0.34 0.97 2.80 11.9 20250830 11:10:46 SSMIS-17 85-92GHz 27.1 17.25 104.46 17.25 104.35 0.38 1.08 0.40 3.7
		20250830 06:38:07 AMSR2 85-92GHz 38.4 18.22 105.81 18.18 106.17 0.62 1.76 1.50 0.4
		20250829 20:55:17 * SSMIS-18 85-92GHz 34.9 17.54 108.60 17.53 108.67 0.45 1.28 1.00 5.8
		20250829 18:06:58 * AMSR2 85-92GHz 30.0 17.45 109.11 17.44 109.26 0.46 1.29 0.30 2.8
		20250829 08:33:26 GMI 85-92GHz 30.0 *** *** *** *** *** *** 1.10 *** 20250829 08:21:48 SSMIS-18 85-92GHz 30.0 16.76 111.56 16.78 111.54 0.44 1.25 0.90 3.1
		20250829 05:54:30 AMSR2 85-92GHz 30.0 16.29 112.32 16.27 112.39 0.41 1.14 1.00 5.4
		20250828 22:32:01 SSMIS-17 85-92GHz 30.9 16.30 113.43 16.38 113.28 0.51 1.45 0.40 0.9
		20250828 19:13:26 * GMI 85-92GHz 30.5 15.72 113.87 15.83 113.68 0.24 0.67 3.50 15.1
		20250828 10:29:59 SSMIS-16 85-92GHz 30.0 15.45 115.99 15.51 115.84 0.45 1.29 2.90 2.3
		20250828 09:57:00 * SSMIS-17 85-92GHz 30.5 15.51 115.07 15.41 115.29 0.38 1.08 0.50 2.5 20250828 08:36:22 SSMIS-18 85-92GHz 30.0 15.48 115.45 15.47 115.46 0.42 1.19 2.80 2.4 20250828 08:35:33 SSMIS-18 85-92GHz 30.0 15.47 115.50 15.47 115.51 0.64 1.80 2.90 0.0
		20250828 05:11:07 AMSR2 85-92GHz 30.0 14.40 116.42 14.42 116.38 0.44 1.24 0.20 2.5

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