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
		20250828 21:42:50 AMSR2 85-92GHz 28.5 26.25 -120.62 26.21 -120.61 0.42 1.18 0.60 1.9
		20250828 13:59:57 SSMIS-17 85-92GHz 30.0 26.39 -121.09 26.47 -121.11 0.57 1.60 0.40 0.6
		20250828 12:38:16 SSMIS-18 85-92GHz 30.0 26.02 -120.61 25.96 -120.60 0.46 1.31 1.10 0.8
		20250828 01:30:38 SSMIS-17 85-92GHz 38.7 24.36 -120.96 24.50 -120.98 0.51 1.45 3.30 1.3
		20250828 00:08:56 SSMIS-18 85-92GHz 40.0 24.56 -121.10 24.55 -121.10 0.58 1.64 2.40 0.5 20250827 23:58:27 GMI 85-92GHz 40.0 *** *** *** *** *** *** 5.00 ***
		20250827 20:59:09 AMSR2 85-92GHz 40.0 23.85 -120.51 23.85 -120.51 0.38 1.09 1.60 4.2
		20250827 14:47:28 SSMIS-16 85-92GHz 42.7 22.99 -120.20 23.02 -120.22 0.43 1.20 1.30 2.6 20250827 14:14:43 SSMIS-17 85-92GHz 43.1 22.64 -120.11 22.77 -120.22 0.49 1.38 1.30 1.5
		20250827 10:28:27 GMI 85-92GHz 44.2 *** *** *** *** *** *** 2.80 *** 20250827 10:03:17 AMSR2 85-92GHz 44.4 22.27 -119.18 22.07 -119.06 0.34 0.95 0.30 21.1
		20250827 01:43:21 * SSMIS-17 85-92GHz 52.1 20.68 -117.89 20.89 -118.06 0.25 0.71 0.30 50.6
		20250827 00:38:26 GMI 85-92GHz 53.9 20.15 -117.84 20.05 -117.75 0.45 1.27 0.40 7.3
		20250826 11:27:23 * SSMIS-18 85-92GHz 59.5 18.63 -116.22 18.70 -116.25 0.18 0.50 0.80 56.6 20250826 11:13:26 GMI 85-92GHz 59.4 18.40 -116.10 18.50 -116.15 0.20 0.56 0.50 55.4
		20250826 09:21:19 AMSR2 85-92GHz 57.8 18.12 -115.96 18.08 -115.95 0.29 0.82 0.50 37.4
		20250826 02:28:39 * SSMIS-16 85-92GHz 55.0 17.67 -115.48 17.71 -115.56 0.38 1.07 2.50 8.3 20250826 01:56:58 * SSMIS-17 85-92GHz 55.0 17.97 -114.98 18.06 -115.14 0.40 1.12 3.20 18.4
		20250825 21:09:26 * AMSR2 85-92GHz 52.6 17.20 -114.72 17.19 -114.70 0.33 0.94 0.40 18.3
		20250825 11:41:24 SSMIS-18 85-92GHz 35.0 17.58 -112.80 17.60 -112.87 0.55 1.54 2.10 1.9
		20250825 00:23:26 GMI 85-92GHz 30.0 16.14 -110.16 16.12 -110.09 0.48 1.35 2.90 0.9 20250824 23:06:54 SSMIS-18 85-92GHz 30.0 16.26 -110.47 16.31 -110.65 0.38 1.07 2.30 4.1

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