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
		20210804 00:38:40 SSMI-15 85-92GHz 45.0 18.20 -125.50 18.15 -125.46 0.23 0.65 2.10 5.2
		20210803 21:28:10 AMSR2 85-92GHz 49.2 17.84 -125.10 17.79 -125.06 0.22 0.61 1.10 9.4
		20210803 14:51:20 SSMIS-17 85-92GHz 57.6 17.60 -125.02 17.60 -125.03 0.26 0.72 1.70 21.3
		20210803 12:53:58 * SSMIS-16 85-92GHz 60.0 17.56 -124.68 17.51 -124.60 0.18 0.52 1.50 33.2 20210803 12:30:46 SSMIS-18 85-92GHz 60.0 17.44 -124.70 17.41 -124.66 0.27 0.78 1.20 15.5 20210803 11:45:18 GMI 85-92GHz 60.0 17.28 -124.65 17.30 -124.67 0.22 0.62 1.40 48.2
		20210803 02:16:58 * SSMIS-17 85-92GHz 63.1 16.14 -123.49 16.21 -123.56 0.30 0.84 0.60 20.1
		20210803 00:20:18 GMI 85-92GHz 65.0 *** *** *** *** *** *** 1.70 *** 20210803 00:19:17 SSMIS-16 85-92GHz 65.0 16.47 -123.70 16.44 -123.67 0.28 0.80 1.70 7.6 20210802 23:55:47 * SSMIS-18 85-92GHz 65.1 15.84 -123.25 15.85 -123.26 0.16 0.46 0.30 80.2
		20210802 15:05:02 * SSMIS-17 85-92GHz 70.0 15.50 -122.56 15.49 -122.55 0.14 0.39 0.80 81.2
		20210802 13:07:16 SSMIS-16 85-92GHz 70.0 15.30 -122.38 15.27 -122.33 0.12 0.33 0.70 95.4 20210802 12:43:39 SSMIS-18 85-92GHz 70.0 15.37 -122.45 15.36 -122.42 0.16 0.44 0.80 84.1
		20210802 09:52:35 * AMSR2 85-92GHz 70.0 15.05 -122.03 15.05 -121.95 0.10 0.28 0.70 100.0
		20210802 02:29:46 * SSMIS-17 85-92GHz 70.0 14.72 -121.60 14.75 -121.65 0.15 0.42 0.50 83.7 20210802 02:28:12 SSMIS-17 85-92GHz 70.0 14.72 -121.60 14.75 -121.65 0.15 0.42 0.50 84.1
		20210802 00:31:41 SSMIS-16 85-92GHz 70.0 15.53 -121.41 15.50 -121.35 0.23 0.64 2.30 7.9 20210802 00:08:12 SSMIS-18 85-92GHz 70.0 15.31 -121.42 15.30 -121.40 0.26 0.74 2.20 4.0 20210802 00:06:22 SSMIS-18 85-92GHz 75.0 15.33 -121.43 15.32 -121.41 0.21 0.58 2.20 9.0
		20210801 21:39:22 AMSR2 85-92GHz 72.0 14.76 -121.22 14.74 -121.11 0.18 0.49 0.60 66.9
		20210801 12:56:45 * SSMIS-18 85-92GHz 75.0 14.33 -120.33 14.30 -120.24 0.13 0.38 0.50 94.5 20210801 12:17:42 SSMI-15 85-92GHz 75.0 14.41 -120.15 14.40 -120.12 0.18 0.51 0.50 59.9 20210801 11:55:19 GMI 85-92GHz 75.0 14.45 -120.10 14.45 -120.11 0.14 0.38 0.60 91.5
		20210801 02:43:02 SSMIS-17 85-92GHz 75.0 14.09 -118.15 14.10 -118.19 0.19 0.54 1.70 9.4 20210801 02:41:42 SSMIS-17 85-92GHz 75.0 14.09 -118.14 14.10 -118.19 0.24 0.67 1.70 1.1
		20210801 00:44:29 * SSMIS-16 85-92GHz 75.0 13.97 -118.61 13.95 -118.49 0.15 0.42 0.60 77.2 20210801 00:20:33 SSMIS-18 85-92GHz 75.0 14.06 -118.61 14.05 -118.55 0.16 0.45 0.60 68.4 20210801 00:19:07 SSMIS-18 85-92GHz 63.7 14.04 -118.64 14.03 -118.59 0.19 0.54 0.60 73.9
		20210731 20:56:13 * AMSR2 85-92GHz 67.3 13.96 -117.92 13.96 -117.92 0.10 0.29 0.70 100.0
		20210731 12:33:41 * SSMI-15 85-92GHz 55.9 13.67 -116.29 13.63 -116.19 0.10 0.29 0.90 97.1 20210731 11:52:39 * SSMIS-16 85-92GHz 54.8 13.49 -116.13 13.50 -116.15 0.11 0.31 0.90 100.0

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