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
		20200817 10:27:36 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 2.60 *** 20200817 10:27:35 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 2.60 ***
		20200817 09:02:07 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 2.30 *** 20200817 09:01:25 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 2.10 *** 20200817 07:55:21 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 0.30 ***
		20200816 22:07:06 SSMIS-17 85-92GHz 35.8 *** *** *** *** *** *** 0.10 *** 20200816 19:34:15 SSMIS-16 85-92GHz 36.8 *** *** *** *** *** *** 0.20 ***
		20200816 16:37:34 AMSR2 85-92GHz 38.1 *** *** *** *** *** *** 1.10 ***
		20200816 10:41:00 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 2.70 ***
		20200816 09:15:00 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 2.80 *** 20200816 09:14:21 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 2.80 *** 20200816 08:08:43 SSMIS-16 85-92GHz 40.0 *** *** *** *** *** *** 1.70 ***
		20200816 05:32:27 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 0.10 ***
		20200815 22:20:08 SSMIS-17 85-92GHz 41.4 *** *** *** *** *** *** 1.50 ***
		20200815 20:52:50 SSMIS-18 85-92GHz 42.6 39.49 -62.69 39.47 -62.75 0.50 1.42 2.00 1.1 20200815 19:47:02 * SSMIS-16 85-92GHz 43.5 39.02 -62.64 39.12 -62.17 0.25 0.69 1.70 7.5
		20200815 17:32:36 AMSR2 85-92GHz 45.0 39.57 -64.73 39.59 -64.64 0.47 1.33 0.20 2.8
		20200815 10:55:43 SSMIS-17 85-92GHz 44.1 38.78 -67.08 38.83 -66.74 0.41 1.15 1.20 5.9
		20200815 09:28:31 SSMIS-18 85-92GHz 40.3 38.65 -67.83 38.60 -68.14 0.54 1.53 2.80 1.0 20200815 09:28:05 SSMIS-18 85-92GHz 42.9 38.63 -67.84 38.58 -68.15 0.59 1.68 2.80 0.4
		20200815 06:28:28 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 2.30 ***
		20200814 22:33:36 SSMIS-17 85-92GHz 38.8 37.86 -71.61 37.96 -71.28 0.40 1.13 2.20 4.2
		20200814 21:05:05 SSMIS-18 85-92GHz 37.6 37.86 -72.21 37.82 -72.30 0.56 1.58 1.30 1.1 20200814 20:00:00 SSMIS-16 85-92GHz 36.7 37.60 -72.56 37.68 -72.37 0.38 1.07 3.20 2.9
		20200814 18:27:43 AMSR2 85-92GHz 35.0 37.35 -72.46 37.27 -72.64 0.44 1.25 0.20 4.2

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