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
		20210804 09:39:01 AMSR2 85-92GHz 21.3 19.96 -114.36 20.00 -114.39 0.41 1.16 3.60 1.6
		20210804 02:04:10 SSMIS-17 85-92GHz 25.0 20.03 -115.37 20.00 -115.32 0.55 1.56 0.30 0.3
		20210804 00:07:05 * SSMIS-16 85-92GHz 25.0 19.95 -115.62 19.95 -115.63 0.33 0.94 2.50 1.7 20210803 23:44:00 SSMIS-18 85-92GHz 25.0 19.91 -115.70 19.90 -115.68 0.49 1.40 1.80 0.5
		20210803 21:28:34 * AMSR2 85-92GHz 25.0 20.15 -115.48 20.18 -115.53 0.38 1.07 2.30 1.3
		20210803 14:50:05 * SSMIS-17 85-92GHz 27.6 20.37 -116.59 20.37 -116.56 0.37 1.04 0.30 3.5
		20210803 12:52:45 * SSMIS-16 85-92GHz 30.0 20.16 -116.26 20.14 -116.30 0.37 1.05 0.20 1.9 20210803 12:29:25 SSMIS-18 85-92GHz 30.0 20.13 -116.41 20.12 -116.42 0.39 1.09 1.70 2.0
		20210803 02:17:32 * SSMIS-17 85-92GHz 33.1 19.50 -116.02 19.60 -116.12 0.47 1.33 2.10 2.4
		20210803 00:20:18 * GMI 85-92GHz 35.0 19.59 -115.65 19.55 -115.60 0.50 1.41 2.30 2.0 20210803 00:19:45 SSMIS-16 85-92GHz 35.0 19.19 -115.81 19.15 -115.76 0.53 1.50 4.40 0.3 20210802 23:56:15 SSMIS-18 85-92GHz 35.0 19.39 -115.55 19.40 -115.56 0.64 1.80 2.50 0.0
		20210802 20:45:09 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 2.20 ***
		20210802 12:42:52 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 1.00 *** 20210802 12:00:44 * SSMI-15 85-92GHz 35.0 18.35 -114.02 18.35 -114.02 0.41 1.16 1.10 6.8 20210802 11:00:18 GMI 85-92GHz 34.2 18.25 -113.86 18.30 -113.97 0.51 1.45 1.00 7.6
		20210802 00:08:43 * SSMIS-18 85-92GHz 30.0 17.86 -112.90 17.85 -112.88 0.26 0.75 1.50 51.8 20210801 23:28:16 * SSMI-15 85-92GHz 30.0 17.67 -112.57 17.70 -112.64 0.27 0.77 1.40 44.2

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