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
		20171120 05:30:00 Geo Vis 15.2 11.04 103.49 11.04 103.49 0.71 2.01 0.30 *** 20171120 05:30:00 Geo NearIR 15.2 13.36 103.41 13.36 103.41 3.36 9.49 0.50 *** 20171120 05:30:00 Geo IR 15.2 10.89 102.88 10.89 102.88 3.36 9.49 0.40 33.2
		20171120 02:51:00 * Metop-B ASCAT 16.3 9.96 104.29 9.96 104.37 0.26 0.72 *** *** 20171120 02:30:00 Geo Vis 16.5 10.16 103.55 10.16 103.55 1.05 2.97 0.10 *** 20171120 02:30:00 Geo NearIR 16.5 13.06 103.60 13.06 103.60 1.95 5.51 0.20 *** 20171120 02:30:00 Geo IR 16.5 10.74 104.34 10.74 104.34 3.36 9.49 0.90 1.3 20171120 01:57:00 Metop-A ASCAT 16.7 *** *** *** *** *** *** *** ***
		20171119 23:30:00 Geo NearIR 17.7 *** *** *** *** *** *** 0.10 *** 20171119 23:30:00 Geo IR 17.7 *** *** *** *** *** *** 0.10 *** 20171119 23:11:36 SSMIS-18 85-92GHz 17.8 11.89 104.48 11.89 104.41 0.61 1.74 2.90 0.0 20171119 23:06:48 SSMIS-17 85-92GHz 17.9 *** *** *** *** *** *** 3.00 ***
		20171119 20:30:35 SSMIS-16 85-92GHz 19.0 12.00 105.82 12.00 105.82 0.61 1.72 2.10 0.0 20171119 20:30:00 Geo NearIR 19.0 *** *** *** *** *** *** 0.60 *** 20171119 20:30:00 Geo IR 19.0 *** *** *** *** *** *** 0.60 *** 20171119 19:49:12 * SSMI-15 85-92GHz 19.2 11.35 105.67 11.35 105.51 0.42 1.19 0.20 0.5
		20171119 18:55:46 AMSR2 85-92GHz 19.6 11.70 106.24 11.70 106.57 0.60 1.70 0.20 0.2 20171119 18:55:46 AMSR2 37GHz 19.6 *** *** *** *** *** *** 0.20 *** 20171119 17:30:00 Geo NearIR 20.6 *** *** *** *** *** *** 0.10 *** 20171119 17:30:00 Geo IR 20.6 *** *** *** *** *** *** 0.70 ***
		20171119 14:30:00 Geo NearIR 23.9 *** *** *** *** *** *** 0.30 *** 20171119 14:30:00 Geo IR 23.9 *** *** *** *** *** *** 0.10 ***
		20171119 11:30:00 Geo NearIR 27.2 *** *** *** *** *** *** 0.30 *** 20171119 11:30:00 Geo IR 27.2 *** *** *** *** *** *** 0.20 *** 20171119 10:33:39 * SSMIS-18 85-92GHz 28.3 11.90 107.43 11.92 107.21 0.28 0.80 3.00 0.0
		20171119 08:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.10 *** 20171119 08:30:00 Geo NearIR 30.0 10.84 107.19 10.84 107.19 2.07 5.86 0.20 *** 20171119 08:30:00 Geo IR 30.0 11.04 107.29 11.04 107.29 1.56 4.41 0.10 68.7 20171119 08:16:39 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 *** 20171119 08:16:39 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 *** 20171119 07:13:04 SSMI-15 85-92GHz 30.0 11.30 108.96 11.34 108.67 0.56 1.60 1.90 0.5
		20171119 05:30:00 Geo Vis 30.4 11.11 107.91 11.11 107.91 3.36 9.49 0.70 *** 20171119 05:30:00 Geo NearIR 30.4 10.69 108.26 10.69 108.26 1.23 3.48 0.40 *** 20171119 05:30:00 Geo IR 30.4 *** *** *** *** *** *** 0.10 ***
		20171119 02:30:00 Geo Vis 32.9 *** *** *** *** *** *** 1.00 *** 20171119 02:30:00 Geo NearIR 32.9 10.92 109.59 10.92 109.59 3.35 9.48 0.90 *** 20171119 02:30:00 Geo IR 32.9 *** *** *** *** *** *** 0.20 ***
		20171118 23:30:00 Geo Vis 35.0 9.67 110.98 9.67 110.98 0.59 1.67 0.10 *** 20171118 23:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 1.00 *** 20171118 23:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.60 *** 20171118 23:24:12 SSMIS-18 85-92GHz 35.0 11.10 110.61 11.10 110.59 0.38 1.08 1.30 10.3 20171118 23:20:07 SSMIS-17 85-92GHz 35.0 11.05 110.73 11.05 110.69 0.34 0.97 1.50 11.2
		20171118 20:46:39 GMI 85-92GHz 35.0 10.85 111.11 10.85 111.16 0.28 0.78 1.00 13.9 20171118 20:46:39 * GMI 37GHz 35.0 10.65 111.47 10.65 111.52 0.21 0.60 0.80 *** 20171118 20:43:32 SSMIS-16 85-92GHz 35.0 11.15 110.97 11.15 111.01 0.25 0.71 1.50 24.9 20171118 20:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.90 *** 20171118 20:30:00 Geo IR 35.0 10.47 111.62 10.47 111.62 0.73 2.05 0.70 3.8
		20171118 18:12:48 AMSR2 85-92GHz 35.0 10.80 111.67 10.82 111.74 0.44 1.26 1.80 1.0 20171118 18:12:48 * AMSR2 37GHz 35.0 10.65 111.93 10.67 111.99 0.22 0.61 0.90 *** 20171118 17:30:00 Geo NearIR 35.0 10.59 112.28 10.59 112.28 0.56 1.59 0.40 *** 20171118 17:30:00 * Geo IR 35.0 10.62 112.10 10.62 112.10 0.29 0.82 0.50 10.6
		20171118 14:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 1.00 *** 20171118 14:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.80 ***
		20171118 11:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.10 *** 20171118 11:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.10 *** 20171118 10:45:59 SSMIS-18 85-92GHz 35.0 12.47 113.00 12.48 112.90 0.50 1.42 2.20 3.5 20171118 10:42:43 * SSMIS-17 85-92GHz 35.0 12.12 113.17 12.13 113.05 0.41 1.16 1.90 5.5
		20171118 08:30:00 Geo Vis 35.0 *** *** *** *** *** *** 0.40 *** 20171118 08:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.50 *** 20171118 08:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.50 *** 20171118 08:06:01 SSMIS-16 85-92GHz 35.0 12.01 113.59 12.02 113.50 0.42 1.17 1.80 4.8 20171118 07:28:50 SSMI-15 85-92GHz 35.0 *** *** *** *** *** *** 0.60 ***
		20171118 05:57:26 AMSR2 85-92GHz 35.0 11.40 113.92 11.40 114.03 0.45 1.26 2.70 1.9 20171118 05:57:26 * AMSR2 37GHz 35.0 11.55 113.56 11.55 113.67 0.34 0.96 0.60 *** 20171118 05:30:00 Geo Vis 35.4 *** *** *** *** *** *** 0.50 *** 20171118 05:30:00 Geo NearIR 35.4 *** *** *** *** *** *** 0.10 *** 20171118 05:30:00 Geo IR 35.4 *** *** *** *** *** *** 0.90 ***
		20171118 02:30:00 Geo Vis 37.9 10.69 115.26 10.69 115.26 3.36 9.49 0.10 *** 20171118 02:30:00 Geo NearIR 37.9 *** *** *** *** *** *** 0.30 *** 20171118 02:30:00 Geo IR 37.9 *** *** *** *** *** *** 0.50 ***
		20171117 23:30:00 Geo Vis 39.6 *** *** *** *** *** *** 0.20 *** 20171117 23:30:00 Geo NearIR 39.6 *** *** *** *** *** *** 0.10 *** 20171117 23:30:00 Geo IR 39.6 *** *** *** *** *** *** 0.10 ***
		20171117 20:30:00 Geo NearIR 37.1 *** *** *** *** *** *** 0.50 *** 20171117 20:30:00 Geo IR 37.1 *** *** *** *** *** *** 0.80 ***
		20171117 18:39:52 * SSMI-15 85-92GHz 35.0 10.73 116.64 10.57 116.94 0.24 0.68 3.00 0.0 20171117 17:30:00 Geo NearIR 34.2 *** *** *** *** *** *** 1.00 *** 20171117 17:30:00 Geo IR 34.2 *** *** *** *** *** *** 0.60 *** 20171117 17:29:47 AMSR2 85-92GHz 34.2 10.62 116.83 10.62 116.83 0.37 1.03 2.60 5.6 20171117 17:29:47 AMSR2 37GHz 34.2 10.62 116.88 10.62 116.88 0.48 1.36 0.40 ***
		20171117 14:30:00 Geo NearIR 29.2 *** *** *** *** *** *** 0.40 *** 20171117 14:30:00 Geo IR 29.2 *** *** *** *** *** *** 0.40 *** 20171117 14:03:00 Metop-A ASCAT 28.4 *** *** *** *** *** *** *** *** 20171117 13:18:00 * Metop-B ASCAT 27.2 10.81 117.43 10.95 117.10 0.18 0.52 *** ***
		20171117 11:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.10 *** 20171117 11:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.20 *** 20171117 10:55:25 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 1.00 ***

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