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
		20210620 11:41:45 * SSMIS-18 85-92GHz 30.3 21.73 -103.95 21.75 -103.95 0.41 1.16 1.70 1.7 20210620 11:32:32 SSMI-15 85-92GHz 30.4 21.92 -104.00 21.95 -104.01 0.44 1.25 3.10 2.0
		20210620 08:30:31 AMSR2 85-92GHz 32.9 *** *** *** *** *** *** 4.50 ***
		20210619 23:09:29 * SSMIS-18 85-92GHz 41.9 20.32 -104.11 20.45 -104.15 0.59 1.67 2.20 0.4 20210619 23:07:52 SSMIS-18 85-92GHz 41.9 20.36 -104.11 20.50 -104.15 0.45 1.29 1.90 1.6 20210619 23:01:41 SSMI-15 85-92GHz 42.2 *** *** *** *** *** *** 2.30 ***
		20210619 20:20:04 AMSR2 85-92GHz 48.1 *** *** *** *** *** *** 2.40 ***
		20210619 11:55:49 * SSMIS-18 85-92GHz 53.3 17.97 -103.63 17.98 -103.64 0.12 0.33 0.80 100.0 20210619 11:55:48 * SSMIS-18 85-92GHz 59.9 17.98 -103.65 18.00 -103.66 0.11 0.31 0.80 100.0
		20210618 23:30:19 GMI 85-92GHz 44.6 16.09 -101.78 16.15 -101.82 0.35 0.98 1.70 8.4 20210618 23:21:11 SSMIS-18 85-92GHz 44.5 15.83 -101.87 15.90 -101.92 0.49 1.37 1.70 3.6 20210618 23:20:03 SSMIS-18 85-92GHz 42.6 15.84 -101.87 15.91 -101.92 0.49 1.38 1.70 3.4 20210618 23:16:17 SSMI-15 85-92GHz 44.4 *** *** *** *** *** *** 1.40 ***
		20210618 13:20:02 * SSMIS-17 85-92GHz 36.1 15.37 -101.77 15.25 -101.79 0.32 0.92 1.60 10.2 20210618 11:04:04 SSMIS-16 85-92GHz 34.2 15.21 -101.93 15.26 -101.96 0.45 1.27 0.90 3.7
		20210618 08:44:33 AMSR2 85-92GHz 32.3 14.75 -102.19 14.76 -102.23 0.59 1.66 1.60 1.5

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