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
		20170725 23:52:35 * SSMIS-18 85-92GHz 25.1 16.58 104.26 16.58 104.32 0.17 0.47 0.40 61.6 20170725 23:46:56 SSMIS-17 85-92GHz 25.2 16.58 104.32 16.58 104.37 0.20 0.55 0.40 52.6 20170725 23:46:52 SSMIS-17 85-92GHz 25.2 16.58 104.32 16.58 104.37 0.19 0.54 0.40 54.3
		20170725 20:44:37 * SSMIS-16 85-92GHz 27.7 16.55 104.60 16.55 104.64 0.26 0.73 3.30 15.1
		20170725 18:36:36 AMSR2 85-92GHz 29.5 16.70 104.89 16.70 105.07 0.31 0.88 5.00 0.0
		20170725 11:17:42 * SSMIS-18 85-92GHz 37.4 16.77 106.21 16.77 106.18 0.24 0.68 5.00 0.0 20170725 11:12:32 SSMIS-17 85-92GHz 37.5 16.87 106.17 16.87 106.12 0.35 0.98 3.20 14.6
		20170725 08:10:04 * SSMIS-16 85-92GHz 40.0 16.80 106.83 16.80 106.78 0.19 0.52 0.70 32.3 20170725 07:26:39 GMI 85-92GHz 40.0 *** *** *** *** *** *** 5.00 ***
		20170725 06:24:11 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 0.60 ***
		20170724 20:57:34 * SSMIS-16 85-92GHz 45.0 17.05 108.89 17.05 108.99 0.58 1.64 0.60 1.9 20170724 19:10:32 SSMI-15 85-92GHz 45.0 17.05 109.33 17.05 109.08 0.49 1.39 5.00 0.0
		20170724 18:11:40 GMI 85-92GHz 45.0 17.30 109.77 17.30 109.89 0.29 0.83 0.70 8.8 20170724 17:53:29 AMSR2 85-92GHz 44.9 16.90 109.45 16.90 109.51 0.35 0.99 5.00 0.0
		20170724 11:25:54 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 5.00 ***
		20170724 08:23:00 SSMIS-16 85-92GHz 40.0 16.78 110.42 16.78 110.41 0.28 0.80 5.00 0.0
		20170724 05:41:13 AMSR2 85-92GHz 40.0 17.20 110.66 17.20 110.67 0.58 1.63 1.40 1.9
		20170723 21:10:41 * SSMIS-16 85-92GHz 37.6 17.49 111.27 17.47 111.29 0.17 0.49 5.00 0.0 20170723 19:26:40 * SSMI-15 85-92GHz 36.2 17.21 111.43 17.23 111.40 0.25 0.70 2.10 8.2
		20170723 08:36:20 * SSMIS-16 85-92GHz 35.0 17.37 111.63 17.37 111.62 0.28 0.80 5.00 0.0 20170723 07:36:40 GMI 85-92GHz 35.0 17.66 111.35 17.64 111.41 0.27 0.77 1.20 19.4
		20170723 06:53:47 * SSMI-15 85-92GHz 35.0 17.65 111.58 17.66 111.57 0.24 0.66 5.00 0.0
		20170722 22:48:30 SSMIS-18 85-92GHz 34.0 17.87 111.56 17.85 111.59 0.28 0.80 0.80 17.6 20170722 22:45:30 SSMIS-17 85-92GHz 34.0 17.87 111.71 17.85 111.75 0.46 1.30 5.00 0.0
		20170722 19:42:14 * SSMI-15 85-92GHz 31.4 18.06 111.70 18.02 111.77 0.30 0.84 5.00 0.0
		20170722 18:21:40 GMI 85-92GHz 30.0 17.91 111.60 17.91 111.61 0.38 1.08 5.00 0.0
		20170722 07:09:34 * SSMI-15 85-92GHz 30.0 17.81 111.96 17.78 111.90 0.39 1.10 0.40 3.9
		20170721 23:00:52 SSMIS-18 85-92GHz 25.0 17.78 112.56 17.78 112.54 0.38 1.07 5.00 0.0 20170721 22:58:43 * SSMIS-17 85-92GHz 25.0 17.93 112.93 17.93 112.91 0.36 1.02 5.00 0.0
		20170721 10:26:31 SSMIS-18 85-92GHz 30.0 17.64 113.83 17.67 113.73 0.35 0.99 5.00 0.0 20170721 10:24:55 * SSMIS-17 85-92GHz 30.0 17.39 113.67 17.42 113.57 0.34 0.95 5.00 0.0
		20170721 07:46:40 * GMI 85-92GHz 30.0 17.61 114.20 17.64 114.12 0.41 1.17 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