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
		20190210 17:59:32 SSMIS-17 85-92GHz 30.0 -28.15 -171.19 -28.15 -171.19 0.40 1.13 3.00 0.8 20190210 16:31:40 GMI 85-92GHz 30.0 -27.38 -171.72 -27.95 -171.42 0.53 1.50 2.80 1.0 20190210 16:31:40 * GMI 37GHz 30.0 -27.58 -171.32 -28.15 -171.02 0.37 1.05 1.90 ***
		20190210 12:32:41 AMSR2 85-92GHz 30.0 -26.02 -172.59 -25.82 -172.70 0.39 1.10 2.90 1.8 20190210 12:32:41 AMSR2 37GHz 30.0 -26.17 -172.20 -25.97 -172.30 0.43 1.21 1.90 ***
		20190210 09:36:00 * Metop-B ASCAT 30.0 -24.82 -173.46 -24.60 -173.57 0.20 0.58 *** *** 20190210 08:24:00 * Metop-A ASCAT 30.0 -24.72 -173.67 -24.95 -173.57 0.16 0.46 *** ***
		20190210 03:11:39 GMI 85-92GHz 32.3 -23.41 -174.22 -23.37 -174.24 0.31 0.88 2.20 3.4 20190210 03:11:39 * GMI 37GHz 32.3 -23.31 -173.95 -23.27 -173.96 0.27 0.76 1.30 ***
		20190209 21:06:00 * Metop-B ASCAT 35.0 -21.27 -174.66 -21.24 -174.67 0.18 0.51 *** *** 20190209 20:00:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
		20190209 18:10:54 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***

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: Summary table, ARCHER Track table, ARCHER Track Image Archive, Intensity Estimation, ARCHER-ERC page