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
		20211005 00:49:12 SSMIS-16 85-92GHz 34.3 *** *** *** *** *** *** 0.20 *** 20211005 00:41:45 * SSMIS-18 85-92GHz 34.4 22.28 54.49 22.32 54.59 0.54 1.51 3.70 0.2 20211004 22:18:25 * AMSR2 85-92GHz 36.4 22.72 53.97 22.67 53.88 0.49 1.38 0.40 0.7
		20211004 12:18:08 SSMIS-16 85-92GHz 44.7 *** *** *** *** *** *** 0.30 *** 20211004 12:10:03 SSMIS-18 85-92GHz 44.9 *** *** *** *** *** *** 1.30 ***
		20211004 02:34:21 SSMIS-17 85-92GHz 55.7 *** *** *** *** *** *** 0.30 *** 20211004 01:01:45 SSMIS-16 85-92GHz 58.3 *** *** *** *** *** *** 0.20 ***
		20211004 00:53:51 SSMIS-18 85-92GHz 58.5 *** *** *** *** *** *** 0.30 ***
		20211003 21:35:06 * AMSR2 85-92GHz 64.0 23.89 56.84 23.95 56.98 0.26 0.73 0.40 42.0
		20211003 14:03:59 * SSMIS-17 85-92GHz 71.6 24.40 58.11 24.39 58.06 0.16 0.45 1.70 29.9
		20211003 12:31:14 SSMIS-16 85-92GHz 72.3 24.33 58.06 24.35 58.16 0.20 0.55 1.70 3.3 20211003 12:23:28 SSMIS-18 85-92GHz 72.3 24.33 58.01 24.35 58.11 0.28 0.78 1.70 0.0
		20211003 09:26:47 * AMSR2 85-92GHz 73.6 24.08 58.33 24.09 58.43 0.24 0.67 0.20 6.7
		20211003 02:47:35 * SSMIS-17 85-92GHz 72.3 24.34 59.12 24.34 59.15 0.19 0.53 1.70 23.5 20211003 01:14:29 SSMIS-16 85-92GHz 71.0 24.28 58.97 24.29 58.82 0.20 0.56 0.20 33.7 20211003 01:06:31 * SSMIS-18 85-92GHz 70.9 24.23 58.93 24.24 58.77 0.21 0.58 0.20 30.4
		20211002 14:17:06 SSMIS-17 85-92GHz 62.9 24.27 60.38 24.28 60.35 0.23 0.65 0.50 53.2
		20211002 12:44:12 * SSMIS-16 85-92GHz 62.1 24.28 60.35 24.22 60.50 0.20 0.57 0.30 72.2
		20211002 08:43:44 * AMSR2 85-92GHz 60.0 24.39 61.23 24.38 61.26 0.09 0.27 0.30 100.0
		20211002 05:05:19 GMI 85-92GHz 60.8 24.12 61.73 24.13 61.67 0.12 0.34 0.80 99.4
		20211002 03:00:47 SSMIS-17 85-92GHz 62.5 23.98 62.00 23.95 62.08 0.14 0.40 0.70 91.4
		20211001 21:47:15 AMSR2 85-92GHz 61.3 23.85 62.67 23.85 62.83 0.14 0.39 0.60 99.7 20211001 19:20:18 GMI 85-92GHz 57.2 23.80 62.91 23.80 62.78 0.11 0.32 0.70 100.0
		20211001 14:29:52 * SSMIS-17 85-92GHz 57.9 23.70 63.70 23.70 63.70 0.12 0.35 0.70 78.9
		20210930 21:04:33 AMSR2 85-92GHz 42.6 22.72 65.32 22.71 65.40 0.36 1.03 1.60 28.3

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