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
		20231001 22:10:09 * SSMIS-17 85-92GHz 30.0 26.15 -55.33 25.91 -55.33 0.38 1.06 0.50 7.3 20231001 20:46:18 SSMIS-16 85-92GHz 30.0 26.26 -55.22 26.26 -55.22 0.42 1.19 0.50 2.0 20231001 20:44:51 SSMIS-16 85-92GHz 30.0 26.26 -55.22 26.26 -55.22 0.43 1.21 0.50 1.9
		20231001 16:52:12 AMSR2 85-92GHz 30.9 25.66 -55.17 25.81 -55.28 0.33 0.93 0.40 4.5
		20231001 15:21:14 GMI 85-92GHz 32.2 25.53 -54.98 25.41 -54.87 0.42 1.18 1.40 2.3
		20231001 09:28:47 SSMIS-16 85-92GHz 35.0 24.14 -53.61 24.03 -53.48 0.39 1.12 0.20 2.6 20231001 07:36:39 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 0.70 ***
		20231001 05:36:14 GMI 85-92GHz 35.0 23.90 -53.30 23.91 -53.32 0.24 0.67 1.00 28.6
		20230930 20:58:04 * SSMIS-16 85-92GHz 37.5 22.37 -51.71 22.33 -51.66 0.35 1.00 3.10 3.1
		20230930 19:04:55 * SSMIS-18 85-92GHz 40.0 21.85 -51.34 21.60 -51.07 0.25 0.70 2.40 4.6
		20230930 09:26:27 * SSMIS-17 85-92GHz 42.1 20.56 -49.54 20.53 -49.45 0.28 0.80 1.20 7.2 20230930 07:50:31 SSMIS-18 85-92GHz 45.0 20.78 -48.91 20.82 -49.03 0.41 1.17 0.60 3.3 20230930 07:50:27 SSMIS-18 85-92GHz 43.5 20.79 -48.85 20.83 -48.97 0.40 1.14 0.70 3.3
		20230930 05:13:22 AMSR2 85-92GHz 45.0 20.89 -48.20 20.92 -48.27 0.34 0.97 2.30 8.0 20230930 04:51:15 GMI 85-92GHz 45.0 *** *** *** *** *** *** 1.10 ***
		20230929 20:54:12 SSMIS-17 85-92GHz 42.4 20.01 -47.99 20.00 -47.96 0.30 0.84 1.90 8.1 20230929 19:17:18 * SSMIS-18 85-92GHz 41.1 19.85 -47.95 19.95 -48.18 0.28 0.78 4.90 5.0
		20230929 09:40:27 * SSMIS-17 85-92GHz 40.0 18.78 -46.59 18.72 -46.54 0.48 1.36 1.50 3.0
		20230929 04:30:59 AMSR2 85-92GHz 38.8 18.45 -46.45 18.53 -46.45 0.37 1.06 1.10 7.8
		20230928 21:07:14 * SSMIS-17 85-92GHz 35.1 18.01 -46.10 17.98 -46.08 0.40 1.12 0.60 5.5
		20230928 16:26:15 * GMI 85-92GHz 35.0 17.52 -46.01 17.66 -46.19 0.29 0.81 3.10 8.4 20230928 16:19:10 AMSR2 85-92GHz 35.0 17.75 -45.84 17.91 -46.04 0.34 0.95 3.30 14.7

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