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
		20250907 09:43:36 * AMSR2 85-92GHz 15.9 26.52 -117.84 26.50 -117.78 0.62 1.75 0.30 0.1 20250907 07:33:27 * GMI 85-92GHz 16.9 26.35 -117.71 26.40 -117.83 0.57 1.62 0.40 0.4
		20250906 23:29:46 SSMIS-18 85-92GHz 20.0 26.13 -116.95 26.15 -116.99 0.46 1.30 1.30 0.7
		20250906 12:12:45 SSMIS-18 85-92GHz 20.0 25.51 -115.81 25.50 -115.80 0.43 1.21 0.20 1.4
		20250906 09:00:55 AMSR2 85-92GHz 21.2 25.35 -115.28 25.35 -115.28 0.43 1.22 0.40 2.6
		20250906 01:40:53 SSMIS-16 85-92GHz 24.3 25.00 -114.93 25.04 -114.96 0.52 1.48 0.60 0.5
		20250906 01:03:55 * SSMIS-17 85-92GHz 24.6 24.98 -114.97 24.95 -114.96 0.40 1.12 0.50 1.8
		20250905 20:53:12 * AMSR2 85-92GHz 26.3 24.92 -114.87 24.92 -114.87 0.25 0.72 0.50 8.7
		20250905 13:47:27 * SSMIS-17 85-92GHz 29.3 24.75 -114.82 24.79 -114.83 0.45 1.27 0.30 1.2
		20250905 12:27:09 SSMIS-18 85-92GHz 29.8 24.66 -115.14 24.65 -115.13 0.47 1.34 0.40 1.0
		20250905 09:56:23 * AMSR2 85-92GHz 32.3 24.62 -115.05 24.58 -115.03 0.49 1.37 0.30 1.8
		20250905 01:54:20 SSMIS-16 85-92GHz 40.0 23.76 -114.68 23.80 -114.72 0.47 1.34 3.40 0.7
		20250905 01:17:49 * SSMIS-17 85-92GHz 40.0 24.69 -114.94 24.65 -114.89 0.26 0.72 2.90 3.6 20250904 23:57:43 * SSMIS-18 85-92GHz 40.0 24.75 -115.27 24.75 -115.27 0.23 0.64 0.60 4.7
		20250904 21:33:27 GMI 85-92GHz 42.0 24.26 -114.75 24.25 -114.71 0.27 0.76 3.80 6.3
		20250904 14:01:41 SSMIS-17 85-92GHz 54.9 23.83 -113.84 23.90 -113.92 0.22 0.63 0.30 8.5
		20250904 09:13:40 AMSR2 85-92GHz 64.6 23.92 -114.19 23.91 -114.17 0.25 0.71 2.00 7.8 20250904 08:08:27 GMI 85-92GHz 66.4 23.82 -114.12 23.86 -114.21 0.26 0.73 1.80 6.7
		20250904 01:31:34 * SSMIS-17 85-92GHz 73.7 23.35 -113.23 23.52 -113.38 0.24 0.68 1.70 0.8
		20250903 21:04:47 * AMSR2 85-92GHz 72.6 22.90 -112.48 22.89 -112.47 0.14 0.40 0.10 98.0
		20250903 14:16:33 SSMIS-17 85-92GHz 66.9 *** *** *** *** *** *** 0.90 ***
		20250903 11:15:30 SSMIS-18 85-92GHz 67.5 21.74 -111.05 21.85 -111.18 0.24 0.67 0.30 27.2 20250903 11:15:01 * SSMIS-18 85-92GHz 64.4 21.78 -111.13 21.89 -111.26 0.24 0.67 0.40 31.4
		20250902 22:43:06 * SSMIS-18 85-92GHz 52.9 19.52 -109.16 19.71 -109.35 0.21 0.61 0.30 74.0 20250902 22:41:32 SSMIS-18 85-92GHz 46.9 *** *** *** *** *** *** 0.30 ***
		20250902 21:23:26 GMI 85-92GHz 50.7 *** *** *** *** *** *** 0.60 *** 20250902 20:20:46 * AMSR2 85-92GHz 48.9 19.21 -108.81 19.31 -108.91 0.16 0.47 0.50 89.9

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