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
		20231021 18:43:58 AMSR2 85-92GHz 15.0 *** *** *** *** *** *** 3.00 ***
		20231021 10:45:13 * SSMIS-17 85-92GHz 18.0 18.39 108.84 18.32 108.82 0.43 1.22 2.80 0.8
		20231021 06:32:26 AMSR2 85-92GHz 19.8 *** *** *** *** *** *** 1.00 ***
		20231020 23:32:00 GMI 85-92GHz 23.6 *** *** *** *** *** *** 2.00 *** 20231020 23:31:42 * SSMIS-17 85-92GHz 23.6 19.37 109.05 19.37 109.06 0.46 1.31 0.20 0.7 20231020 22:16:22 SSMIS-16 85-92GHz 24.3 19.18 109.26 19.07 109.16 0.51 1.45 3.30 0.5
		20231020 20:23:14 * SSMIS-18 85-92GHz 25.0 19.31 109.39 19.30 109.38 0.43 1.22 0.40 0.3
		20231020 17:58:22 AMSR2 85-92GHz 25.0 *** *** *** *** *** *** 0.10 ***
		20231020 10:59:16 * SSMIS-17 85-92GHz 30.0 19.94 109.62 19.90 109.56 0.42 1.19 1.80 0.8
		20231020 09:43:39 SSMIS-16 85-92GHz 30.0 20.05 109.94 20.15 110.10 0.42 1.17 1.60 1.0 20231020 07:50:44 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 2.90 ***
		20231020 05:50:06 AMSR2 85-92GHz 30.1 20.81 109.91 20.84 109.90 0.36 1.01 2.30 3.0
		20231019 23:45:02 SSMIS-17 85-92GHz 35.2 *** *** *** *** *** *** 2.90 *** 20231019 22:28:57 SSMIS-16 85-92GHz 36.3 *** *** *** *** *** *** 2.70 ***
		20231019 20:35:59 * SSMIS-18 85-92GHz 37.8 22.12 109.84 22.13 109.84 0.38 1.08 2.10 7.5
		20231019 18:55:16 AMSR2 85-92GHz 39.6 *** *** *** *** *** *** 0.30 ***
		20231019 13:01:14 GMI 85-92GHz 35.0 21.24 109.37 21.41 109.46 0.44 1.26 0.20 7.6
		20231019 11:12:56 SSMIS-17 85-92GHz 35.0 21.23 109.40 21.27 109.43 0.35 0.98 0.70 6.2
		20231019 09:56:49 SSMIS-16 85-92GHz 35.0 20.98 109.13 20.69 108.95 0.44 1.24 5.00 0.0 20231019 08:04:07 SSMIS-18 85-92GHz 37.8 20.47 109.37 20.56 109.42 0.30 0.86 0.60 49.9 20231019 08:04:04 * SSMIS-18 85-92GHz 35.0 20.48 109.36 20.57 109.40 0.33 0.92 0.60 43.8
		20231018 23:46:14 GMI 85-92GHz 35.0 *** *** *** *** *** *** 0.60 *** 20231018 22:42:42 SSMIS-16 85-92GHz 35.0 19.18 107.99 19.26 107.99 0.37 1.04 1.30 4.6
		20231018 20:50:05 * SSMIS-18 85-92GHz 35.0 19.09 109.42 19.05 109.42 0.34 0.97 2.80 5.1
		20231018 18:12:52 * AMSR2 85-92GHz 35.0 18.46 108.57 18.42 108.57 0.54 1.52 0.80 2.9
		20231018 11:26:06 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 2.00 *** 20231018 10:09:15 * SSMIS-16 85-92GHz 35.0 18.01 108.80 18.13 108.73 0.38 1.07 0.30 7.9
		20231018 08:16:48 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 0.70 ***
		20231018 06:01:06 AMSR2 85-92GHz 35.0 17.50 108.96 17.42 109.02 0.29 0.82 1.40 7.7
		20231017 22:56:44 SSMIS-16 85-92GHz 30.0 *** *** *** *** *** *** 2.80 ***
		20231017 21:04:04 SSMIS-18 85-92GHz 30.0 17.06 109.90 17.00 109.94 0.25 0.71 0.90 31.8 20231017 21:04:02 * SSMIS-18 85-92GHz 30.0 16.99 109.93 16.94 109.97 0.27 0.77 0.80 25.5
		20231017 13:11:14 GMI 85-92GHz 26.0 16.10 110.37 16.07 110.40 0.45 1.27 0.50 3.2

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