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
		20200930 18:21:40 SSMIS-18 85-92GHz 35.0 40.84 170.02 40.78 169.54 0.50 1.42 0.90 1.0 20200930 18:21:39 SSMIS-18 85-92GHz 35.0 40.84 170.02 40.78 169.54 0.50 1.42 0.90 1.0 20200930 18:20:10 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 5.00 *** 20200930 16:59:43 SSMIS-16 85-92GHz 35.8 41.96 168.18 41.98 168.47 0.48 1.36 0.50 1.1
		20200930 14:54:40 * AMSR2 85-92GHz 37.6 41.32 168.00 41.29 167.78 0.48 1.36 1.00 0.6
		20200930 06:55:16 * SSMIS-17 85-92GHz 44.2 40.63 164.17 40.43 163.54 0.30 0.85 0.40 4.9 20200930 06:00:53 SSMIS-18 85-92GHz 45.0 40.60 163.43 40.53 163.21 0.36 1.02 0.60 4.2 20200930 05:59:21 SSMIS-18 85-92GHz 45.0 *** *** *** *** *** *** 0.40 *** 20200930 04:38:43 SSMIS-16 85-92GHz 46.5 40.48 162.91 40.63 163.27 0.42 1.19 0.40 2.1
		20200930 02:55:44 AMSR2 85-92GHz 48.4 *** *** *** *** *** *** 2.20 ***
		20200930 00:10:18 GMI 85-92GHz 51.5 *** *** *** *** *** *** 2.50 ***
		20200929 18:35:36 SSMIS-18 85-92GHz 54.5 38.64 158.40 38.40 158.01 0.22 0.62 0.40 63.3
		20200929 15:51:25 * AMSR2 85-92GHz 58.6 37.79 157.44 37.45 157.03 0.18 0.50 0.20 90.4
		20200929 06:11:50 SSMIS-18 85-92GHz 65.0 34.86 155.75 34.64 155.62 0.34 0.97 2.20 4.7 20200929 06:10:55 SSMIS-18 85-92GHz 61.8 34.71 155.12 34.49 154.99 0.42 1.18 0.30 6.3 20200929 04:50:19 SSMIS-16 85-92GHz 64.0 *** *** *** *** *** *** 3.00 ***
		20200929 01:00:18 * GMI 85-92GHz 60.0 33.14 154.18 33.71 154.41 0.19 0.53 0.40 70.7
		20200928 18:50:56 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 0.10 *** 20200928 18:50:27 * SSMIS-18 85-92GHz 50.0 30.96 153.54 30.55 153.42 0.12 0.33 0.40 100.0 20200928 18:50:26 * SSMIS-18 85-92GHz 51.4 30.97 153.57 30.55 153.46 0.12 0.33 0.40 100.0
		20200928 15:10:43 * AMSR2 85-92GHz 47.6 29.87 153.19 29.70 153.13 0.11 0.32 0.30 100.0
		20200928 06:22:45 SSMIS-18 85-92GHz 45.0 28.49 153.09 28.34 153.12 0.52 1.46 1.80 2.3
		20200927 20:02:16 SSMIS-17 85-92GHz 35.8 *** *** *** *** *** *** 3.10 *** 20200927 20:00:56 SSMIS-17 85-92GHz 35.8 *** *** *** *** *** *** 3.20 *** 20200927 20:00:52 SSMIS-17 85-92GHz 36.7 *** *** *** *** *** *** 3.10 *** 20200927 19:04:16 * SSMIS-18 85-92GHz 35.4 24.89 154.67 25.29 154.27 0.41 1.15 1.60 5.4
		20200927 17:43:55 SSMIS-16 85-92GHz 35.0 25.33 155.61 25.26 155.66 0.55 1.56 0.50 1.0
		20200927 10:55:19 GMI 85-92GHz 34.1 *** *** *** *** *** *** 5.00 ***
		20200927 07:30:06 SSMIS-17 85-92GHz 31.3 22.16 157.42 22.43 157.24 0.44 1.24 5.00 2.4
		20200927 05:12:44 * SSMIS-16 85-92GHz 30.0 21.55 158.05 21.61 157.99 0.38 1.08 3.60 4.3
		20200926 20:15:49 SSMIS-17 85-92GHz 26.9 20.70 158.84 20.72 158.82 0.46 1.30 3.00 2.1 20200926 20:15:25 * SSMIS-17 85-92GHz 26.9 20.14 158.81 20.16 158.78 0.55 1.56 2.50 1.2

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