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
		20230422 20:50:53 SSMIS-17 85-92GHz 20.0 11.57 152.41 11.56 152.44 0.53 1.49 0.20 1.0 20230422 20:50:51 * SSMIS-17 85-92GHz 20.0 11.57 152.41 11.56 152.44 0.53 1.50 0.20 1.0
		20230422 17:58:46 SSMIS-18 85-92GHz 20.0 *** *** *** *** *** *** 2.20 ***
		20230422 08:12:56 SSMIS-17 85-92GHz 22.1 10.47 153.14 10.48 153.12 0.35 1.00 0.30 3.3 20230422 07:18:42 * SSMIS-16 85-92GHz 22.6 10.45 153.41 10.48 153.32 0.28 0.78 0.80 4.9
		20230422 05:20:56 * SSMIS-18 85-92GHz 23.7 10.51 153.66 10.51 153.65 0.38 1.08 0.50 1.9
		20230422 02:01:15 GMI 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
		20230421 18:12:12 SSMIS-18 85-92GHz 43.2 *** *** *** *** *** *** 0.80 *** 20230421 18:12:10 * SSMIS-18 85-92GHz 43.2 *** *** *** *** *** *** 0.60 *** 20230421 18:12:09 * SSMIS-18 85-92GHz 40.0 10.55 154.83 10.57 154.94 0.60 1.70 0.40 0.2
		20230421 15:23:12 AMSR2 85-92GHz 42.2 *** *** *** *** *** *** 4.30 *** 20230421 14:31:15 GMI 85-92GHz 42.9 *** *** *** *** *** *** 1.70 ***
		20230421 05:33:55 * SSMIS-18 85-92GHz 45.0 10.09 155.84 10.09 155.84 0.33 0.94 0.40 5.1
		20230421 03:07:18 * AMSR2 85-92GHz 45.0 10.10 156.56 10.09 156.56 0.49 1.40 0.30 14.4
		20230420 19:36:57 * SSMIS-17 85-92GHz 45.0 9.69 156.37 9.73 156.35 0.45 1.28 0.30 8.0
		20230420 18:42:05 SSMIS-16 85-92GHz 45.0 *** *** *** *** *** *** 0.30 ***
		20230420 05:46:39 * SSMIS-18 85-92GHz 34.8 9.01 157.56 8.96 157.56 0.52 1.46 0.60 2.5
		20230420 02:23:54 AMSR2 85-92GHz 34.0 *** *** *** *** *** *** 5.00 *** 20230420 02:11:15 * GMI 85-92GHz 31.8 7.95 156.70 8.06 156.70 0.41 1.15 1.40 4.5
		20230419 19:51:43 SSMIS-17 85-92GHz 30.0 *** *** *** *** *** *** 3.40 ***
		20230419 18:56:13 SSMIS-16 85-92GHz 30.8 *** *** *** *** *** *** 0.80 *** 20230419 16:58:39 SSMIS-18 85-92GHz 26.1 *** *** *** *** *** *** 2.30 *** 20230419 16:58:38 SSMIS-18 85-92GHz 29.1 *** *** *** *** *** *** 2.30 ***
		20230419 14:41:15 * GMI 85-92GHz 27.2 6.07 157.76 6.04 157.78 0.42 1.17 0.60 4.6

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