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
		20250812 04:48:27 * GMI 85-92GHz 20.5 23.40 -122.64 23.40 -122.87 0.56 1.58 2.70 0.3
		20250811 20:58:50 AMSR2 85-92GHz 23.8 23.45 -120.80 23.45 -120.81 0.46 1.30 0.10 2.3
		20250811 15:23:26 GMI 85-92GHz 26.4 23.16 -119.82 23.14 -119.75 0.40 1.13 3.50 1.0 20250811 14:40:07 * SSMIS-17 85-92GHz 26.9 23.38 -120.29 23.39 -120.35 0.29 0.81 0.60 2.7
		20250811 10:03:02 AMSR2 85-92GHz 29.4 22.89 -118.83 22.85 -118.65 0.45 1.27 2.70 0.8
		20250811 02:33:48 SSMIS-16 85-92GHz 30.0 22.43 -117.89 22.46 -117.94 0.49 1.40 1.60 0.5 20250811 02:09:20 * SSMIS-17 85-92GHz 30.0 22.67 -117.97 22.74 -118.08 0.29 0.81 2.80 3.3
		20250810 23:03:41 * SSMIS-18 85-92GHz 30.8 22.26 -117.33 22.31 -117.44 0.39 1.11 0.50 2.2 20250810 23:02:51 SSMIS-18 85-92GHz 33.9 22.36 -117.36 22.41 -117.47 0.41 1.17 0.60 2.4
		20250810 09:20:24 AMSR2 85-92GHz 35.0 21.76 -115.16 21.73 -115.09 0.33 0.94 0.80 12.7
		20250810 04:38:27 GMI 85-92GHz 37.3 21.34 -114.42 21.40 -114.62 0.21 0.61 0.80 13.6
		20250809 23:17:08 SSMIS-18 85-92GHz 45.0 20.67 -114.00 20.70 -114.07 0.26 0.73 0.40 54.0 20250809 23:15:56 SSMIS-18 85-92GHz 43.7 20.79 -114.01 20.82 -114.09 0.34 0.95 0.50 30.3
		20250809 21:10:20 AMSR2 85-92GHz 45.0 20.93 -113.46 20.93 -113.45 0.32 0.91 0.40 21.3
		20250809 15:13:26 GMI 85-92GHz 47.3 *** *** *** *** *** *** 2.90 ***
		20250809 13:27:57 SSMIS-17 85-92GHz 48.8 20.80 -112.90 20.80 -112.77 0.35 0.99 0.90 11.4 20250809 12:02:54 * SSMIS-18 85-92GHz 50.0 21.00 -112.94 21.00 -112.94 0.34 0.96 1.20 8.8
		20250809 05:23:26 GMI 85-92GHz 50.5 20.74 -112.22 20.75 -112.25 0.50 1.42 0.20 3.6
		20250809 00:55:58 SSMIS-17 85-92GHz 55.0 *** *** *** *** *** *** 0.20 *** 20250808 23:31:01 * SSMIS-18 85-92GHz 55.0 20.39 -111.47 20.40 -111.52 0.26 0.73 0.20 9.4
		20250808 20:27:13 * AMSR2 85-92GHz 55.0 20.42 -111.09 20.43 -111.19 0.17 0.49 0.30 79.2
		20250808 15:58:26 * GMI 85-92GHz 53.3 20.23 -110.59 20.30 -110.40 0.19 0.53 0.50 72.9
		20250807 10:50:46 * SSMIS-18 85-92GHz 39.0 16.74 -103.03 17.06 -103.28 0.47 1.34 0.20 3.0
		20250807 08:50:46 * AMSR2 85-92GHz 37.4 16.17 -102.61 16.23 -102.64 0.43 1.21 0.10 9.4
		20250806 22:15:50 * SSMIS-18 85-92GHz 35.7 14.32 -98.97 14.15 -98.59 0.37 1.03 0.10 53.7

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