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
		20250531 20:09:42 * AMSR2 85-92GHz 29.1 21.04 -109.71 21.12 -109.71 0.24 0.68 1.80 3.0
		20250531 13:10:52 * SSMIS-17 85-92GHz 32.7 20.93 -109.37 20.78 -109.34 0.38 1.08 0.70 1.5 20250531 11:32:32 SSMIS-18 85-92GHz 33.6 20.37 -109.64 20.43 -109.66 0.38 1.09 4.90 1.0
		20250531 09:15:04 AMSR2 85-92GHz 34.9 20.23 -109.41 20.20 -109.41 0.27 0.76 0.20 5.2
		20250531 01:13:26 GMI 85-92GHz 39.0 18.84 -109.03 18.65 -109.00 0.22 0.63 1.50 7.6 20250531 00:38:34 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 2.10 *** 20250531 00:37:25 SSMIS-17 85-92GHz 41.0 *** *** *** *** *** *** 2.10 *** 20250530 22:59:48 SSMIS-18 85-92GHz 40.8 18.64 -108.66 18.81 -108.68 0.35 1.00 1.80 3.2
		20250530 21:04:04 AMSR2 85-92GHz 42.4 19.06 -108.74 19.04 -108.74 0.39 1.11 0.20 4.0
		20250530 11:48:26 GMI 85-92GHz 45.0 16.97 -108.32 17.00 -108.34 0.21 0.59 1.50 55.5
		20250530 08:33:04 AMSR2 85-92GHz 45.0 16.49 -108.01 16.55 -108.05 0.38 1.07 1.50 8.0
		20250530 00:51:51 * SSMIS-17 85-92GHz 50.0 15.12 -107.64 15.02 -107.56 0.17 0.49 2.10 31.9
		20250529 20:20:03 AMSR2 85-92GHz 46.9 15.16 -107.38 15.28 -107.48 0.48 1.34 1.20 4.2
		20250529 12:33:27 * GMI 85-92GHz 30.9 14.45 -106.82 14.38 -106.77 0.35 1.00 0.40 9.7
		20250529 01:03:27 * GMI 85-92GHz 30.0 12.75 -104.38 12.63 -104.27 0.39 1.11 0.40 5.4

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