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
		20200101 23:55:29 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 1.80 ***
		20200101 21:07:52 AMSR2 85-92GHz 51.6 -32.34 62.17 -32.14 62.06 0.44 1.24 2.70 2.7
		20200101 15:15:22 SSMIS-17 85-92GHz 54.9 -31.08 61.05 -30.83 60.90 0.37 1.05 2.80 2.7
		20200101 10:08:30 AMSR2 85-92GHz 57.3 -29.18 61.00 -29.63 61.15 0.22 0.61 1.90 11.9
		20200101 02:46:30 SSMIS-17 85-92GHz 66.5 -26.25 60.57 -26.17 60.55 0.21 0.60 0.20 46.5
		20191231 15:30:54 * SSMIS-17 85-92GHz 69.7 -23.50 59.30 -23.30 59.16 0.14 0.40 2.00 73.6
		20191231 09:27:15 * AMSR2 85-92GHz 67.9 -22.33 58.65 -22.19 58.61 0.13 0.37 0.20 100.0
		20191231 02:59:20 SSMIS-17 85-92GHz 62.5 -21.02 58.36 -20.98 58.35 0.19 0.52 2.90 44.1 20191231 02:36:39 GMI 85-92GHz 62.2 -21.24 58.03 -21.23 58.02 0.19 0.53 0.50 77.2
		20191230 21:17:28 * AMSR2 85-92GHz 57.7 -20.91 58.01 -20.88 58.02 0.17 0.48 0.20 87.1
		20191230 13:16:39 GMI 85-92GHz 51.1 -20.72 58.38 -20.74 58.35 0.16 0.45 1.30 71.2 20191230 13:02:42 SSMIS-18 85-92GHz 50.0 -20.63 58.47 -20.66 58.43 0.14 0.39 1.30 72.0
		20191230 11:49:27 SSMIS-16 85-92GHz 49.8 *** *** *** *** *** *** 1.60 ***
		20191230 00:30:02 * SSMIS-18 85-92GHz 35.0 -20.52 58.51 -20.50 58.58 0.13 0.38 0.50 91.0

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