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
		20251216 18:25:31 * SSMIS-17 85-92GHz 30.0 -14.24 173.86 -14.26 173.79 0.38 1.07 0.80 2.0
		20251215 18:39:58 * SSMIS-17 85-92GHz 35.0 -15.00 171.30 -14.94 171.24 0.37 1.05 1.10 1.3
		20251215 13:44:12 AMSR2 85-92GHz 38.6 -14.87 171.54 -14.93 171.62 0.52 1.46 1.80 1.5
		20251215 09:07:26 * GMI 85-92GHz 40.1 -14.31 171.38 -14.29 171.31 0.14 0.39 3.40 10.9
		20251214 16:08:27 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 1.90 ***
		20250112 16:16:27 * SSMIS-16 85-92GHz 35.0 -21.85 -159.50 -21.85 -159.50 0.38 1.07 2.60 0.3 20250112 15:50:49 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 5.00 *** 20250112 13:40:07 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 5.00 ***
		20250112 05:01:30 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 2.20 *** 20250112 04:36:16 SSMIS-17 85-92GHz 35.0 -22.15 -158.85 -22.15 -158.85 0.42 1.20 2.00 2.0
		20250112 02:25:22 * SSMIS-18 85-92GHz 35.0 -22.15 -158.26 -22.15 -158.26 0.43 1.21 1.60 1.0
		20250111 16:30:24 SSMIS-16 85-92GHz 35.0 -22.05 -159.83 -22.05 -159.41 0.17 0.48 3.20 1.5
		20250111 16:05:07 * SSMIS-17 85-92GHz 35.0 -22.00 -160.01 -22.00 -160.34 0.13 0.36 2.60 2.6 20250111 13:54:10 SSMIS-18 85-92GHz 35.0 -22.00 -160.90 -22.00 -160.55 0.38 1.08 5.00 0.0
		20250111 12:21:46 * AMSR2 85-92GHz 35.0 -21.88 -161.60 -21.88 -161.72 0.22 0.63 2.40 0.3
		20250111 05:15:41 * SSMIS-16 85-92GHz 40.0 -21.44 -164.09 -21.55 -163.72 0.13 0.36 2.80 12.5
		20250111 01:27:29 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 5.00 ***

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