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
		20250228 20:48:26 GMI 85-92GHz 31.3 *** *** *** *** *** *** 1.30 *** 20250228 19:05:35 SSMIS-16 85-92GHz 32.0 -22.30 172.79 -22.30 172.86 0.52 1.46 0.90 0.4
		20250228 18:17:40 SSMIS-17 85-92GHz 32.4 -22.95 173.51 -22.95 173.47 0.57 1.60 2.70 0.1 20250228 18:17:38 SSMIS-17 85-92GHz 32.4 -22.95 173.51 -22.95 173.47 0.57 1.60 2.70 0.1 20250228 16:18:47 * SSMIS-18 85-92GHz 33.2 -22.60 173.20 -22.60 173.26 0.44 1.23 0.30 0.8
		20250228 13:59:07 AMSR2 85-92GHz 34.2 -22.80 173.09 -22.80 173.11 0.63 1.78 4.00 0.1
		20250228 07:23:26 GMI 85-92GHz 37.6 -22.90 172.52 -22.92 172.57 0.43 1.22 3.60 0.8 20250228 07:02:38 SSMIS-17 85-92GHz 37.8 *** *** *** *** *** *** 5.00 ***
		20250228 05:03:34 SSMIS-18 85-92GHz 38.9 *** *** *** *** *** *** 1.00 ***
		20250227 21:28:27 GMI 85-92GHz 41.1 *** *** *** *** *** *** 5.00 ***
		20250227 18:31:53 SSMIS-17 85-92GHz 42.3 *** *** *** *** *** *** 3.80 *** 20250227 16:32:45 * SSMIS-18 85-92GHz 43.1 -23.01 173.12 -23.02 173.16 0.40 1.12 3.10 2.9
		20250227 13:16:14 AMSR2 85-92GHz 44.5 *** *** *** *** *** *** 5.00 ***
		20250227 08:03:27 * GMI 85-92GHz 45.0 -22.29 171.18 -22.32 171.22 0.28 0.79 3.20 40.9 20250227 07:17:00 SSMIS-17 85-92GHz 45.0 -23.27 172.73 -23.37 172.85 0.26 0.74 2.00 10.0
		20250227 05:17:48 SSMIS-18 85-92GHz 45.0 -22.39 170.91 -22.42 170.93 0.49 1.38 3.40 3.3
		20250226 18:45:41 SSMIS-17 85-92GHz 50.0 *** *** *** *** *** *** 2.00 *** 20250226 18:45:39 SSMIS-17 85-92GHz 47.2 *** *** *** *** *** *** 2.10 *** 20250226 16:46:15 SSMIS-is 85-92GHz 48.0 *** *** *** *** *** *** 0.40 *** 20250226 16:46:15 SSMIS-18 85-92GHz 48.0 *** *** *** *** *** *** 0.40 ***
		20250226 14:10:52 * AMSR2 85-92GHz 50.0 -21.42 171.74 -21.45 171.75 0.19 0.53 0.10 71.2
		20250226 07:31:51 SSMIS-17 85-92GHz 51.9 *** *** *** *** *** *** 5.00 ***
		20250225 21:18:26 GMI 85-92GHz 57.2 *** *** *** *** *** *** 1.50 ***
		20250225 18:59:05 SSMIS-17 85-92GHz 59.2 *** *** *** *** *** *** 0.90 ***
		20250225 06:51:45 SSMIS-16 85-92GHz 56.4 -17.32 171.23 -17.21 171.19 0.23 0.65 0.80 62.8
		20250225 02:34:29 * AMSR2 85-92GHz 49.3 -16.44 170.97 -16.43 170.97 0.20 0.56 0.20 93.7
		20250224 21:58:27 * GMI 85-92GHz 43.3 -15.96 170.41 -15.87 170.37 0.28 0.78 2.40 6.4
		20250224 18:17:24 SSMIS-16 85-92GHz 40.0 *** *** *** *** *** *** 2.30 ***

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