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
		20191021 11:00:38 * SSMIS-16 85-92GHz 20.5 21.80 -105.70 21.90 -105.70 0.49 1.39 0.90 3.9
		20191021 08:31:05 AMSR2 85-92GHz 21.9 *** *** *** *** *** *** 0.80 ***
		20191021 01:05:50 * SSMIS-17 85-92GHz 25.0 19.57 -104.48 19.45 -104.39 0.32 0.89 1.20 6.2
		20191020 22:28:05 SSMIS-16 85-92GHz 27.6 *** *** *** *** *** *** 1.60 *** 20191020 22:26:41 SSMIS-16 85-92GHz 28.4 19.12 -103.05 18.87 -102.89 0.50 1.41 3.40 1.8 20191020 21:51:39 GMI 85-92GHz 28.6 *** *** *** *** *** *** 1.10 *** 20191020 20:20:10 AMSR2 85-92GHz 31.1 *** *** *** *** *** *** 2.10 ***
		20191020 13:52:32 SSMIS-17 85-92GHz 35.0 17.29 -104.37 17.46 -104.37 0.39 1.10 1.90 5.3 20191020 13:52:08 * SSMIS-17 85-92GHz 35.0 17.29 -104.37 17.46 -104.37 0.39 1.09 1.90 5.3
		20191020 11:55:27 * SSMIS-18 85-92GHz 34.9 17.94 -104.53 17.95 -104.53 0.36 1.03 0.40 3.8 20191020 11:14:17 SSMIS-16 85-92GHz 34.4 17.87 -104.58 17.96 -104.58 0.51 1.45 0.40 1.7

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