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
		20251231 17:01:39 * AMSR2 85-92GHz 25.8 -16.65 128.72 -16.63 128.78 0.23 0.64 0.20 60.0
		20251231 07:43:00 * SSMIS-18 85-92GHz 33.6 -17.79 126.71 -17.78 126.82 0.35 0.98 2.40 1.7 20251231 07:22:27 * GMI 85-92GHz 33.9 -17.69 126.71 -17.68 126.87 0.35 0.99 2.40 2.5
		20251230 19:08:53 * SSMIS-18 85-92GHz 55.0 -16.80 124.81 -16.80 125.03 0.13 0.38 1.40 77.4
		20251230 08:02:26 GMI 85-92GHz 84.9 -16.67 122.53 -16.69 122.63 0.13 0.37 0.50 97.1 20251230 07:57:22 SSMIS-18 85-92GHz 85.1 *** *** *** *** *** *** 0.40 ***
		20251229 22:06:10 * SSMIS-17 85-92GHz 90.0 -16.12 120.89 -16.17 121.13 0.11 0.31 0.20 89.7
		20251229 19:23:00 * SSMIS-18 85-92GHz 90.0 -16.10 120.69 -16.17 120.86 0.10 0.29 0.10 100.0
		20251229 17:14:14 * AMSR2 85-92GHz 88.1 -15.96 120.36 -15.98 120.37 0.11 0.30 0.20 100.0
		20251229 10:46:51 * SSMIS-16 85-92GHz 72.0 -15.66 119.96 -15.72 120.01 0.09 0.25 0.20 100.0
		20251229 08:42:27 GMI 85-92GHz 66.8 *** *** *** *** *** *** 2.40 ***
		20251228 22:20:04 * SSMIS-17 85-92GHz 52.2 -14.58 119.14 -14.70 119.14 0.14 0.39 0.20 82.4 20251228 22:11:48 SSMIS-16 85-92GHz 52.0 -14.92 119.45 -15.05 119.45 0.13 0.36 5.00 0.0
		20251228 19:22:25 GMI 85-92GHz 47.3 -14.38 119.40 -14.50 119.40 0.11 0.31 0.20 100.0
		20251228 08:26:34 SSMIS-18 85-92GHz 37.0 -13.42 119.08 -13.42 119.08 0.26 0.73 1.00 4.2
		20251228 05:40:10 AMSR2 85-92GHz 35.0 -13.18 119.50 -13.16 119.50 0.19 0.54 0.50 82.6

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