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
		20260121 09:43:01 * AMSR2 85-92GHz 50.0 -31.26 59.57 -30.82 59.28 0.22 0.63 1.20 49.0
		20260121 06:42:27 GMI 85-92GHz 50.0 -30.16 58.29 -29.72 58.01 0.29 0.82 0.50 48.4
		20260120 21:37:11 AMSR2 85-92GHz 51.0 -26.80 56.79 -26.52 56.75 0.20 0.55 0.40 88.4
		20260120 15:49:03 * SSMIS-16 85-92GHz 53.4 -25.64 56.75 -25.38 56.73 0.12 0.35 0.30 90.6
		20260119 20:53:02 AMSR2 85-92GHz 53.7 -22.50 59.04 -22.45 59.12 0.19 0.53 0.50 70.1
		20260119 06:27:27 GMI 85-92GHz 50.0 -21.27 61.71 -21.22 61.87 0.16 0.46 1.50 63.2
		20260118 17:07:26 GMI 85-92GHz 50.0 -21.39 64.18 -21.40 64.11 0.24 0.67 0.50 50.1
		20260118 09:15:12 AMSR2 85-92GHz 51.1 -20.70 65.34 -20.59 65.45 0.23 0.66 0.80 63.2
		20260117 21:03:56 AMSR2 85-92GHz 55.0 *** *** *** *** *** *** 0.10 *** 20260117 21:03:52 AMSR2 85-92GHz 55.0 *** *** *** *** *** *** 0.10 ***
		20260117 06:17:27 GMI 85-92GHz 71.7 -18.32 67.98 -18.28 68.09 0.21 0.59 0.20 71.1
		20260116 20:20:33 AMSR2 85-92GHz 96.1 -17.58 69.33 -17.58 69.31 0.13 0.38 0.20 83.0 20260116 20:20:32 AMSR2 85-92GHz 96.1 *** *** *** *** *** *** 0.20 ***
		20260115 17:42:26 * GMI 85-92GHz 100.9 -16.84 72.77 -16.84 72.80 0.11 0.31 0.20 100.0
		20260115 13:36:17 * SSMIS-17 85-92GHz 98.8 -17.11 73.36 -17.11 73.24 0.12 0.35 0.20 100.0
		20260115 06:12:26 GMI 85-92GHz 95.0 *** *** *** *** *** *** 5.00 ***
		20260114 20:32:29 AMSR2 85-92GHz 75.3 -17.14 75.36 -17.14 75.36 0.11 0.31 0.30 100.0
		20260114 13:51:33 * SSMIS-16 85-92GHz 68.3 -17.35 76.40 -17.35 76.34 0.19 0.54 0.20 63.3
		20260114 11:09:48 SSMIS-18 85-92GHz 67.2 -17.45 76.66 -17.45 76.64 0.23 0.66 0.30 37.3
		20260114 06:52:27 * GMI 85-92GHz 65.0 -17.25 76.92 -17.25 77.00 0.16 0.44 0.30 92.1
		20260114 01:17:27 * SSMIS-16 85-92GHz 70.9 -17.05 77.50 -17.05 77.45 0.12 0.35 0.40 100.0
		20260113 19:49:31 * AMSR2 85-92GHz 77.7 -17.25 77.69 -17.25 77.67 0.10 0.29 0.30 100.0
		20260113 17:32:26 * GMI 85-92GHz 80.8 -17.30 77.72 -17.30 77.72 0.10 0.29 0.30 99.1
		20260113 01:30:57 * SSMIS-16 85-92GHz 105.6 -17.09 78.05 -17.11 78.05 0.12 0.33 0.10 83.6
		20260112 22:50:32 SSMIS-18 85-92GHz 108.9 -17.11 78.42 -17.13 78.42 0.15 0.42 0.20 12.2
		20260112 18:12:26 GMI 85-92GHz 115.0 -16.91 77.95 -16.89 77.95 0.12 0.33 0.10 100.0
		20260112 14:19:08 * SSMIS-16 85-92GHz 110.4 -16.98 77.92 -16.99 77.92 0.11 0.32 0.10 80.9
		20260112 12:39:08 * SSMIS-17 85-92GHz 108.3 -16.78 78.05 -16.74 78.03 0.12 0.33 0.10 90.9
		20260111 23:04:29 * SSMIS-18 85-92GHz 85.6 -16.14 77.61 -16.16 77.63 0.10 0.28 0.30 100.0
		20260111 20:01:31 * AMSR2 85-92GHz 79.2 -16.12 77.53 -16.15 77.55 0.09 0.27 0.40 100.0
		20260111 07:27:26 GMI 85-92GHz 57.4 -14.98 76.96 -15.08 77.00 0.14 0.39 0.20 85.2
		20260110 23:18:15 * SSMIS-18 85-92GHz 46.6 -14.44 76.32 -14.46 76.34 0.16 0.46 0.60 90.1

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