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
		20190107 01:56:14 * AMSR2 85-92GHz 20.0 5.69 172.81 5.70 172.75 0.53 1.51 3.70 1.5
		20190106 18:53:46 SSMIS-17 85-92GHz 20.0 5.65 173.00 5.63 173.10 0.50 1.40 4.40 0.8 20190106 18:51:20 SSMIS-17 85-92GHz 20.0 *** *** *** *** *** *** 5.00 *** 20190106 18:05:07 * SSMIS-18 85-92GHz 20.0 5.19 173.21 5.18 173.25 0.45 1.27 3.10 2.2 20190106 16:26:04 * SSMIS-16 85-92GHz 20.0 5.47 173.28 5.48 173.20 0.59 1.67 4.10 0.4
		20190106 03:45:15 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 5.00 *** 20190106 03:11:40 * GMI 85-92GHz 25.1 5.26 174.09 5.22 174.13 0.51 1.43 0.20 1.2
		20190105 19:07:10 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 5.00 ***
		20190105 18:17:57 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 4.20 *** 20190105 16:39:41 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 1.70 ***
		20190105 15:41:39 GMI 85-92GHz 25.0 3.46 174.60 3.31 174.65 0.47 1.34 5.00 0.0
		20190105 05:36:45 SSMIS-18 85-92GHz 25.0 5.33 173.82 5.33 173.82 0.56 1.57 5.00 0.0
		20190105 03:58:30 * SSMIS-16 85-92GHz 25.0 5.62 173.71 5.54 173.77 0.30 0.85 0.10 2.3
		20190104 19:20:34 * SSMIS-17 85-92GHz 25.0 5.40 174.53 5.58 174.42 0.58 1.64 5.00 0.0
		20190104 18:30:10 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 5.00 ***

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: ARCHER Track page