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
		20211217 23:21:44 SSMIS-17 85-92GHz 20.0 *** *** *** *** *** *** 1.00 *** 20211217 22:20:00 SSMIS-16 85-92GHz 20.0 *** *** *** *** *** *** 1.70 ***
		20211217 09:48:17 SSMIS-18 85-92GHz 21.2 4.28 102.41 4.30 102.49 0.58 1.65 3.40 1.4 20211217 09:38:09 * SSMIS-16 85-92GHz 21.3 4.18 102.57 4.20 102.64 0.37 1.05 3.40 11.1
		20211217 05:00:18 * GMI 85-92GHz 23.9 4.04 102.77 4.04 102.74 0.52 1.48 4.10 4.0
		20211216 23:35:06 SSMIS-17 85-92GHz 25.0 4.04 102.79 4.04 102.79 0.36 1.03 3.40 11.3 20211216 23:34:44 * SSMIS-17 85-92GHz 25.0 4.10 102.74 4.10 102.75 0.46 1.31 3.40 4.2 20211216 23:33:34 SSMIS-17 85-92GHz 25.0 4.09 102.74 4.09 102.74 0.30 0.85 3.40 17.2
		20211216 21:01:44 * SSMIS-18 85-92GHz 25.0 4.60 103.99 4.60 104.08 0.24 0.69 1.30 46.6 20211216 19:00:27 AMSR2 85-92GHz 25.0 4.25 103.37 4.25 103.08 0.42 1.18 0.60 9.1

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