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
		20210523 21:58:39 * SSMIS-17 85-92GHz 30.0 37.02 -57.11 36.74 -57.61 0.23 0.66 0.30 28.7 20210523 20:30:43 * SSMIS-18 85-92GHz 30.8 37.08 -58.03 37.14 -57.93 0.19 0.54 0.20 26.7 20210523 19:32:34 SSMIS-16 85-92GHz 32.4 36.79 -57.82 37.09 -57.30 0.21 0.58 1.10 22.3
		20210523 17:25:33 * AMSR2 85-92GHz 35.0 36.56 -58.82 36.61 -58.73 0.18 0.52 0.70 35.5
		20210523 10:35:32 * SSMIS-17 85-92GHz 36.2 35.92 -60.29 36.05 -60.11 0.22 0.62 1.70 11.5
		20210523 09:06:53 SSMIS-18 85-92GHz 40.0 35.86 -60.60 35.82 -60.65 0.20 0.57 0.70 17.1 20210523 09:06:50 SSMIS-18 85-92GHz 37.4 35.90 -60.61 35.85 -60.66 0.20 0.57 0.60 15.2 20210523 08:44:26 * SSMI-15 85-92GHz 37.7 35.85 -60.60 35.85 -60.60 0.20 0.56 0.50 29.7
		20210523 06:22:43 AMSR2 85-92GHz 40.0 35.44 -61.04 35.37 -61.12 0.24 0.68 0.20 61.4
		20210522 22:11:17 * SSMIS-17 85-92GHz 38.5 34.31 -61.83 34.16 -62.06 0.20 0.56 0.40 22.7 20210522 20:42:39 SSMIS-18 85-92GHz 37.3 34.20 -62.61 34.21 -62.60 0.36 1.02 0.70 6.1 20210522 20:21:31 SSMI-15 85-92GHz 37.0 34.22 -62.23 34.26 -62.18 0.23 0.64 0.50 20.0 20210522 19:44:49 * SSMIS-16 85-92GHz 36.5 34.22 -61.95 34.30 -61.81 0.20 0.57 0.60 42.4
		20210522 09:20:09 * SSMIS-18 85-92GHz 40.0 34.66 -62.45 34.64 -62.38 0.33 0.94 0.50 8.2 20210522 09:00:37 SSMI-15 85-92GHz 40.0 34.65 -62.29 34.64 -62.26 0.39 1.09 0.50 7.2 20210522 08:22:42 SSMIS-16 85-92GHz 40.0 34.54 -62.06 34.55 -62.11 0.53 1.49 0.20 3.9
		20210522 05:40:06 * AMSR2 85-92GHz 40.0 34.20 -61.79 34.20 -61.80 0.30 0.84 0.60 26.2

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