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
		20180817 23:25:14 SSMIS-17 85-92GHz 25.5 32.54 115.28 32.55 115.27 0.51 1.45 0.40 2.0 20180817 23:25:13 SSMIS-17 85-92GHz 25.5 32.54 115.28 32.55 115.27 0.51 1.45 0.40 2.0 20180817 22:51:39 GMI 85-92GHz 25.9 *** *** *** *** *** *** 0.40 *** 20180817 22:18:25 SSMIS-18 85-92GHz 26.4 32.58 115.53 32.70 115.33 0.56 1.58 0.30 1.2 20180817 22:18:22 SSMIS-18 85-92GHz 26.4 32.53 115.53 32.65 115.33 0.53 1.49 0.30 1.9
		20180817 20:18:01 SSMIS-16 85-92GHz 28.1 32.13 116.19 32.15 116.16 0.46 1.29 2.90 3.3
		20180817 18:07:39 AMSR2 85-92GHz 29.9 31.99 116.36 31.94 116.49 0.34 0.96 2.80 5.2
		20180817 13:11:40 GMI 85-92GHz 34.0 31.37 117.06 31.46 116.79 0.41 1.16 5.00 0.0
		20180817 09:51:54 SSMIS-18 85-92GHz 37.4 30.94 118.90 30.89 119.22 0.41 1.15 5.00 0.0 20180817 07:51:46 SSMIS-16 85-92GHz 39.6 *** *** *** *** *** *** 5.00 ***
		20180816 22:31:09 SSMIS-18 85-92GHz 46.2 31.18 120.98 31.35 120.80 0.61 1.73 1.30 0.7
		20180816 20:31:23 * SSMIS-16 85-92GHz 47.9 30.98 121.33 30.98 121.33 0.37 1.03 1.20 18.5
		20180816 17:25:10 AMSR2 85-92GHz 49.0 30.65 121.95 30.65 121.93 0.25 0.70 0.80 60.6
		20180816 09:30:41 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 3.90 ***
		20180816 05:20:10 AMSR2 85-92GHz 39.4 30.08 124.27 30.08 124.24 0.33 0.93 0.40 6.9
		20180815 23:01:39 GMI 85-92GHz 35.0 29.86 124.84 29.88 124.81 0.25 0.70 2.20 39.7 20180815 22:11:27 SSMIS-17 85-92GHz 35.0 29.78 124.38 29.82 124.29 0.28 0.80 0.70 8.6
		20180815 13:21:40 GMI 85-92GHz 35.0 29.15 125.77 29.28 125.60 0.26 0.73 0.20 21.6
		20180815 09:43:17 * SSMIS-17 85-92GHz 33.1 28.69 126.45 28.48 126.67 0.26 0.73 0.80 28.0 20180815 08:34:10 SSMIS-18 85-92GHz 32.1 28.58 126.43 28.57 126.44 0.41 1.16 0.80 4.7
		20180815 06:35:34 * SSMIS-16 85-92GHz 30.5 27.86 126.93 27.66 127.08 0.39 1.10 5.00 0.0 20180815 04:36:26 * AMSR2 85-92GHz 30.0 27.78 126.71 27.94 126.59 0.50 1.41 1.30 2.2

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