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
		20180514 15:35:19 AMSR2 85-92GHz 20.0 23.19 145.01 23.03 144.86 0.38 1.06 5.00 0.0
		20180514 08:28:12 SSMIS-17 85-92GHz 20.0 22.78 144.64 22.78 144.64 0.63 1.77 0.90 0.2 20180514 07:40:32 SSMIS-18 85-92GHz 20.0 *** *** *** *** *** *** 5.00 ***
		20180514 03:26:16 * AMSR2 85-92GHz 21.4 21.78 144.32 21.67 144.33 0.40 1.13 1.20 5.3
		20180513 21:13:00 * SSMIS-17 85-92GHz 24.9 21.23 144.40 21.13 144.40 0.35 0.98 2.50 3.9 20180513 20:25:29 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 2.40 ***
		20180513 17:01:59 SSMI-15 85-92GHz 25.8 20.78 144.53 20.81 144.51 0.27 0.75 5.00 0.0 20180513 16:31:19 * AMSR2 85-92GHz 26.2 20.90 144.19 20.96 144.14 0.22 0.61 5.00 0.0
		20180513 15:01:39 GMI 85-92GHz 27.5 20.42 144.46 20.40 144.52 0.25 0.71 1.10 7.0
		20180513 08:40:25 * SSMIS-17 85-92GHz 30.0 19.84 145.47 19.83 145.49 0.55 1.54 2.20 0.8 20180513 07:53:43 SSMIS-18 85-92GHz 30.0 20.29 145.84 20.31 145.76 0.63 1.79 1.20 0.0 20180513 07:52:32 SSMIS-18 85-92GHz 30.0 20.32 145.89 20.34 145.81 0.57 1.60 5.00 0.0
		20180513 04:30:52 * SSMI-15 85-92GHz 31.2 20.01 145.93 20.12 145.79 0.46 1.29 5.00 0.0
		20180513 01:41:39 GMI 85-92GHz 33.6 20.01 146.58 20.14 146.46 0.61 1.74 5.00 0.0
		20180512 21:26:47 SSMIS-17 85-92GHz 35.0 19.99 147.01 19.89 147.05 0.31 0.87 5.00 0.0 20180512 20:38:14 SSMIS-18 85-92GHz 35.0 19.85 146.57 19.84 146.58 0.64 1.80 5.00 0.0
		20180512 17:53:25 SSMIS-16 85-92GHz 35.0 19.20 147.34 19.20 147.35 0.51 1.44 5.00 0.0 20180512 17:18:28 SSMI-15 85-92GHz 35.0 19.30 147.32 19.30 147.31 0.55 1.55 5.00 0.0
		20180512 15:48:51 AMSR2 85-92GHz 35.0 19.02 147.02 19.04 147.07 0.37 1.04 0.10 5.1
		20180512 08:53:52 SSMIS-17 85-92GHz 32.4 19.21 147.73 19.22 147.82 0.32 0.91 3.10 4.6 20180512 08:04:41 * SSMIS-18 85-92GHz 31.7 19.44 147.84 19.43 147.75 0.38 1.08 1.80 3.7
		20180512 05:19:50 SSMIS-16 85-92GHz 30.0 18.65 148.44 18.65 148.42 0.57 1.62 5.00 0.0 20180512 04:46:27 * SSMI-15 85-92GHz 30.0 18.66 148.35 18.68 148.25 0.43 1.22 1.80 2.7
		20180512 03:37:29 AMSR2 85-92GHz 30.0 18.81 148.57 18.71 148.71 0.57 1.62 5.00 0.0

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