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
		20251023 23:44:17 SSMIS-16 85-92GHz 15.1 *** *** *** *** *** *** 3.10 *** 20251023 22:44:15 SSMIS-17 85-92GHz 15.5 14.40 107.05 14.34 107.01 0.52 1.47 3.50 1.3
		20251023 21:31:54 * SSMIS-18 85-92GHz 16.0 14.49 106.74 14.57 106.78 0.35 0.98 1.80 0.9 20251023 21:30:10 SSMIS-18 85-92GHz 16.0 *** *** *** *** *** *** 0.20 ***
		20251023 18:13:48 AMSR2 85-92GHz 17.4 15.52 107.41 15.57 107.45 0.61 1.71 2.80 0.2
		20251023 11:09:21 SSMIS-16 85-92GHz 20.5 *** *** *** *** *** *** 3.30 *** 20251023 10:09:19 SSMIS-17 85-92GHz 21.0 *** *** *** *** *** *** 5.00 ***
		20251023 08:56:46 * SSMIS-18 85-92GHz 21.7 14.74 107.26 14.76 107.29 0.44 1.26 1.20 0.7
		20251023 06:00:44 AMSR2 85-92GHz 23.3 *** *** *** *** *** *** 0.30 ***
		20251023 03:43:26 GMI 85-92GHz 24.6 *** *** *** *** *** *** 1.10 ***
		20251022 23:57:43 SSMIS-16 85-92GHz 25.1 *** *** *** *** *** *** 0.70 *** 20251022 22:57:51 * SSMIS-17 85-92GHz 26.7 15.73 108.10 15.69 108.09 0.51 1.43 2.70 0.5
		20251022 10:23:58 * SSMIS-17 85-92GHz 45.0 17.05 109.87 16.98 109.75 0.24 0.69 3.60 4.1
		20251021 23:11:54 * SSMIS-17 85-92GHz 45.7 17.72 110.81 17.72 110.81 0.27 0.75 1.00 40.3
		20251021 18:25:22 AMSR2 85-92GHz 50.0 17.75 111.64 17.74 111.63 0.41 1.17 3.30 6.8 20251021 16:58:26 GMI 85-92GHz 49.1 17.38 111.82 17.39 111.84 0.45 1.28 1.50 3.3
		20251021 11:37:09 SSMIS-16 85-92GHz 45.0 *** *** *** *** *** *** 1.40 ***
		20251021 06:13:10 AMSR2 85-92GHz 45.0 17.04 111.32 17.06 111.36 0.41 1.16 4.80 6.0
		20251021 03:33:27 GMI 85-92GHz 45.0 *** *** *** *** *** *** 2.50 ***
		20251020 20:31:45 SSMIS-18 85-92GHz 45.0 *** *** *** *** *** *** 2.30 ***
		20251020 07:58:30 SSMIS-18 85-92GHz 45.0 18.28 115.17 18.28 115.07 0.55 1.56 1.50 1.9
		20251020 05:30:28 AMSR2 85-92GHz 45.0 18.48 115.40 18.48 115.40 0.58 1.64 0.50 1.5
		20251019 22:57:22 SSMIS-16 85-92GHz 44.1 17.76 116.84 17.82 116.76 0.41 1.15 0.60 4.7
		20251019 21:59:01 SSMIS-17 85-92GHz 43.3 17.62 117.02 17.45 117.19 0.39 1.10 2.40 7.8 20251019 20:45:32 * SSMIS-18 85-92GHz 42.3 17.58 117.06 17.55 117.09 0.40 1.13 2.40 17.1
		20251019 16:43:26 * GMI 85-92GHz 37.9 17.05 117.81 17.19 117.66 0.29 0.83 1.00 26.3
		20251019 10:22:51 SSMIS-16 85-92GHz 31.3 *** *** *** *** *** *** 2.80 ***
		20251019 08:11:49 SSMIS-18 85-92GHz 37.9 15.96 118.91 16.03 118.86 0.27 0.77 2.20 12.4 20251019 08:11:39 * SSMIS-18 85-92GHz 33.2 15.98 118.92 16.05 118.88 0.37 1.03 0.70 4.4
		20251018 23:11:45 SSMIS-16 85-92GHz 35.0 14.39 120.72 14.41 120.66 0.41 1.15 2.20 6.3 20251018 22:13:51 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 1.40 ***
		20251018 17:54:57 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 1.70 ***
		20251018 04:08:27 * GMI 85-92GHz 30.0 13.55 125.61 13.66 125.41 0.37 1.04 0.90 7.2

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