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
		20260204 03:14:11 SSMIS-16 85-92GHz 36.9 -23.23 54.63 -23.25 54.62 0.25 0.71 2.60 4.5
		20260204 00:26:01 * SSMIS-18 85-92GHz 43.9 -23.24 54.64 -23.26 54.63 0.20 0.55 1.60 6.5
		20260203 21:48:40 AMSR2 85-92GHz 45.9 -23.52 54.51 -23.55 54.48 0.24 0.68 2.90 18.7
		20260203 02:22:27 GMI 85-92GHz 55.0 *** *** *** *** *** *** 1.90 ***
		20260202 03:02:26 GMI 85-92GHz 46.3 -21.39 52.10 -21.34 52.04 0.27 0.76 0.40 48.2
		20260201 22:00:14 * AMSR2 85-92GHz 45.0 -20.80 51.55 -20.83 51.73 0.13 0.37 0.40 98.0
		20260201 13:37:27 GMI 85-92GHz 45.0 *** *** *** *** *** *** 2.50 ***
		20260201 03:54:38 * SSMIS-16 85-92GHz 41.6 -19.80 48.64 -19.56 48.40 0.16 0.44 2.20 5.4 20260201 03:42:27 GMI 85-92GHz 41.5 -19.82 48.65 -19.62 48.45 0.24 0.69 2.20 2.5
		20260131 14:17:26 * GMI 85-92GHz 56.2 -17.78 47.05 -17.81 47.08 0.22 0.61 1.30 4.5
		20260131 10:24:01 * AMSR2 85-92GHz 65.3 -17.12 46.47 -17.24 46.62 0.10 0.28 1.50 72.3
		20260131 01:20:47 SSMIS-18 85-92GHz 95.5 *** *** *** *** *** *** 0.40 ***
		20260130 22:11:29 * AMSR2 85-92GHz 97.0 -15.69 44.64 -15.76 44.84 0.11 0.31 0.40 100.0
		20260130 15:02:27 * GMI 85-92GHz 85.1 -15.49 43.54 -15.48 43.46 0.12 0.35 0.50 100.0

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