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
		20171210 04:15:00 * Metop-B ASCAT 25.7 21.00 88.36 21.14 88.50 0.13 0.36 *** ***
		20171210 03:21:00 Metop-A ASCAT 26.1 20.90 88.21 20.81 88.13 0.14 0.41 *** *** 20171210 02:31:39 GMI 85-92GHz 26.4 *** *** *** *** *** *** 3.00 *** 20171210 02:31:39 GMI 37GHz 26.4 *** *** *** *** *** *** 3.00 *** 20171210 01:22:44 SSMIS-17 85-92GHz 26.9 20.69 87.96 20.81 88.07 0.61 1.72 1.70 0.1
		20171210 00:03:34 SSMIS-18 85-92GHz 27.5 *** *** *** *** *** *** 3.00 ***
		20171209 21:12:15 SSMI-15 85-92GHz 28.7 20.74 87.59 20.66 87.53 0.53 1.51 0.30 0.6 20171209 20:07:30 AMSR2 85-92GHz 29.1 20.32 87.34 20.36 87.37 0.46 1.30 0.30 0.9 20171209 20:07:30 AMSR2 37GHz 29.1 19.92 87.61 19.96 87.64 0.39 1.11 0.30 ***
		20171209 16:41:39 GMI 85-92GHz 30.7 *** *** *** *** *** *** 3.00 *** 20171209 16:41:39 GMI 37GHz 30.7 *** *** *** *** *** *** 3.00 ***
		20171209 15:48:00 * Metop-B ASCAT 31.2 19.43 87.41 19.30 87.34 0.14 0.38 *** *** 20171209 14:51:00 Metop-A ASCAT 31.7 19.43 87.41 19.40 87.39 0.17 0.47 *** ***
		20171209 12:50:02 SSMIS-17 85-92GHz 32.9 19.58 86.60 19.45 86.53 0.47 1.32 0.40 1.1 20171209 10:18:28 SSMIS-16 85-92GHz 34.3 *** *** *** *** *** *** 0.50 ***
		20171209 08:40:52 * SSMI-15 85-92GHz 35.0 19.52 86.99 19.49 86.98 0.32 0.91 0.90 3.3 20171209 07:56:48 AMSR2 85-92GHz 35.0 19.32 86.70 19.39 86.72 0.50 1.41 0.60 1.0 20171209 07:56:48 AMSR2 37GHz 35.0 18.77 87.01 18.84 87.04 0.54 1.54 3.00 ***
		20171209 03:26:40 GMI 85-92GHz 37.1 19.04 86.31 19.16 86.33 0.38 1.06 0.30 1.9 20171209 03:26:40 * GMI 37GHz 37.1 18.39 86.73 18.51 86.76 0.28 0.78 0.90 ***
		20171209 00:16:27 SSMIS-18 85-92GHz 40.0 18.89 87.07 18.88 87.07 0.49 1.38 3.00 1.4
		20171208 21:28:45 * SSMI-15 85-92GHz 40.0 18.90 86.62 18.72 86.60 0.35 0.98 0.90 3.5 20171208 19:25:04 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 3.00 *** 20171208 19:25:04 AMSR2 37GHz 40.0 *** *** *** *** *** *** 3.00 ***

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: Summary table, ARCHER Track table, ARCHER Track Image Archive, Intensity Estimation, ARCHER-ERC page