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
		20260413 20:28:48 SSMIS-17 85-92GHz 140.9 *** *** *** *** *** *** 1.10 ***
		20260413 17:59:23 * SSMIS-18 85-92GHz 145.0 13.75 147.10 13.70 147.14 0.09 0.25 0.20 100.0
		20260413 08:37:27 * SSMIS-16 85-92GHz 150.0 12.82 147.81 12.81 147.82 0.10 0.27 0.20 100.0 20260413 07:52:40 SSMIS-17 85-92GHz 149.2 12.72 147.88 12.76 147.81 0.10 0.28 0.20 100.0
		20260413 03:07:09 * AMSR2 85-92GHz 152.4 12.47 148.38 12.42 148.48 0.08 0.23 0.30 100.0
		20260412 21:27:53 * SSMIS-16 85-92GHz 155.0 12.00 149.05 11.90 149.14 0.10 0.27 0.20 100.0
		20260412 18:14:10 * SSMIS-18 85-92GHz 155.0 11.72 149.42 11.66 149.50 0.09 0.26 0.20 100.0 20260412 18:13:13 SSMIS-18 85-92GHz 150.0 11.74 149.48 11.68 149.56 0.10 0.29 0.20 100.0
		20260412 08:50:28 * SSMIS-16 85-92GHz 139.5 10.41 150.56 10.36 150.58 0.10 0.28 0.30 100.0
		20260412 05:37:03 SSMIS-18 85-92GHz 128.7 *** *** *** *** *** *** 0.20 ***
		20260411 18:28:56 * SSMIS-18 85-92GHz 96.2 9.28 151.29 9.22 151.29 0.11 0.31 0.30 100.0 20260411 18:28:23 SSMIS-18 85-92GHz 88.9 9.29 151.30 9.22 151.29 0.11 0.32 0.30 100.0
		20260411 15:34:49 * AMSR2 85-92GHz 91.0 9.02 151.26 8.96 151.15 0.11 0.30 0.40 100.0
		20260411 05:50:51 * SSMIS-18 85-92GHz 79.7 8.79 151.52 8.77 151.53 0.14 0.38 0.30 93.2
		20260411 03:18:22 AMSR2 85-92GHz 77.8 8.57 151.51 8.53 151.53 0.14 0.41 0.30 92.7
		20260410 19:32:33 * SSMIS-17 85-92GHz 63.9 8.21 151.66 8.30 151.77 0.10 0.27 0.60 100.0
		20260410 09:17:42 SSMIS-16 85-92GHz 50.5 8.39 151.63 8.41 151.65 0.44 1.23 2.10 5.7
		20260410 06:04:44 * SSMIS-18 85-92GHz 45.0 8.20 151.61 8.20 151.62 0.21 0.60 1.80 29.2
		20260409 20:29:21 SSMIS-16 85-92GHz 37.1 8.33 151.64 8.32 151.64 0.35 0.98 2.00 4.7 20260409 19:46:32 SSMIS-17 85-92GHz 36.5 8.61 151.64 8.57 151.59 0.25 0.70 3.70 22.7
		20260409 15:47:34 AMSR2 85-92GHz 33.2 8.36 151.62 8.26 151.66 0.33 0.93 2.70 20.4
		20260409 06:19:10 * SSMIS-18 85-92GHz 30.0 8.05 152.35 8.06 152.35 0.29 0.81 1.10 19.6
		20260409 03:30:40 * AMSR2 85-92GHz 27.9 8.57 152.15 8.69 152.15 0.45 1.26 0.20 9.9

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