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
		20170221 11:30:00 Geo NearIR 30.2 *** *** *** *** *** *** 0.70 *** 20170221 11:30:00 Geo IR 30.2 *** *** *** *** *** *** 0.30 ***
		20170221 09:49:49 SSMIS-17 85-92GHz 30.9 *** *** *** *** *** *** 0.50 *** 20170221 09:22:35 SSMIS-18 85-92GHz 31.1 *** *** *** *** *** *** 3.00 *** 20170221 08:30:00 Geo Vis 31.5 -17.40 137.52 -17.40 137.52 0.48 1.36 0.10 *** 20170221 08:30:00 Geo NearIR 31.5 -18.05 138.22 -18.05 138.22 0.69 1.95 1.00 *** 20170221 08:30:00 Geo IR 31.5 -17.60 137.86 -17.60 137.86 0.58 1.64 0.30 43.1
		20170221 05:30:00 * Geo Vis 32.7 -17.45 137.81 -17.45 137.81 0.20 0.57 0.30 *** 20170221 05:30:00 Geo NearIR 32.7 -17.30 138.33 -17.30 138.33 0.39 1.09 0.20 *** 20170221 05:30:00 Geo IR 32.7 -17.20 138.18 -17.20 138.18 0.29 0.81 0.50 14.8
		20170221 02:30:00 Geo Vis 34.0 -16.62 137.56 -16.62 137.56 0.51 1.43 0.10 *** 20170221 02:30:00 Geo NearIR 34.0 -17.34 138.08 -17.34 138.08 0.51 1.46 0.10 *** 20170221 02:30:00 * Geo IR 34.0 -17.34 138.08 -17.34 138.08 0.21 0.58 0.40 20.5
		20170220 23:30:00 * Geo Vis 35.3 -16.33 137.75 -16.33 137.75 0.24 0.67 0.10 *** 20170220 23:30:00 Geo NearIR 35.3 -16.71 137.85 -16.71 137.85 1.07 3.02 0.60 *** 20170220 23:30:00 Geo IR 35.3 -16.86 137.93 -16.86 137.93 1.50 4.25 0.20 32.3
		20170220 21:15:05 SSMIS-17 85-92GHz 36.5 *** *** *** *** *** *** 3.00 *** 20170220 20:48:06 SSMIS-18 85-92GHz 36.8 *** *** *** *** *** *** 1.20 *** 20170220 20:30:00 Geo NearIR 36.9 -17.10 138.47 -17.10 138.47 0.26 0.73 0.10 *** 20170220 20:30:00 * Geo IR 36.9 -17.02 138.45 -17.02 138.45 0.25 0.71 0.10 43.7
		20170220 17:30:00 Geo NearIR 38.6 *** *** *** *** *** *** 0.50 *** 20170220 17:30:00 Geo IR 38.6 -16.38 137.75 -16.38 137.75 3.36 9.49 0.80 1.4
		20170220 15:46:49 AMSR2 85-92GHz 39.6 -15.43 138.07 -15.38 138.07 0.36 1.02 3.00 0.0 20170220 15:46:49 AMSR2 37GHz 39.6 *** *** *** *** *** *** 2.10 *** 20170220 14:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.90 *** 20170220 14:30:00 Geo IR 40.0 -16.76 138.67 -16.76 138.67 3.36 9.49 0.10 1.3 20170220 14:26:39 GMI 85-92GHz 40.0 -15.43 137.86 -15.43 137.86 0.44 1.23 3.00 0.0 20170220 14:26:39 GMI 37GHz 40.0 *** *** *** *** *** *** 1.10 ***
		20170220 12:57:00 * Metop-B ASCAT 40.0 -15.49 137.60 -15.43 137.60 0.15 0.42 *** *** 20170220 12:06:00 Metop-A ASCAT 40.0 -15.55 137.66 -15.53 137.66 0.16 0.45 *** *** 20170220 12:03:00 Metop-A ASCAT 40.0 -15.55 137.66 -15.53 137.66 0.17 0.49 *** *** 20170220 11:30:00 Geo NearIR 40.0 -17.18 137.66 -17.18 137.66 0.27 0.78 0.10 *** 20170220 11:30:00 Geo IR 40.0 -17.23 137.71 -17.23 137.71 0.30 0.85 0.70 5.4
		20170220 09:35:34 * SSMIS-18 85-92GHz 40.0 -17.01 137.69 -16.93 137.67 0.26 0.75 2.20 1.1 20170220 08:30:00 Geo Vis 40.0 *** *** *** *** *** *** 1.00 *** 20170220 08:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.40 *** 20170220 08:30:00 Geo IR 40.0 -16.53 137.09 -16.53 137.09 0.97 2.75 1.00 1.5
		20170220 06:28:10 SSMIS-16 85-92GHz 40.0 -15.85 137.34 -15.76 137.31 0.38 1.09 0.10 15.7 20170220 05:30:00 Geo Vis 40.0 -16.78 136.42 -16.78 136.42 0.32 0.92 0.60 *** 20170220 05:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.30 *** 20170220 05:30:00 Geo IR 40.0 -17.06 136.21 -17.06 136.21 1.73 4.90 1.00 2.7 20170220 05:20:24 SSMI-15 85-92GHz 40.0 -16.59 137.19 -16.61 137.20 0.28 0.78 1.50 4.1 20170220 04:54:59 AMSR2 85-92GHz 40.0 -16.15 137.02 -16.21 137.04 0.58 1.65 0.70 2.4 20170220 04:54:59 AMSR2 37GHz 40.0 *** *** *** *** *** *** 2.20 ***
		20170220 02:30:00 * Geo Vis 40.0 -15.62 136.39 -15.62 136.39 0.12 0.34 0.30 *** 20170220 02:30:00 Geo NearIR 40.0 -16.09 136.19 -16.09 136.19 0.94 2.65 0.10 *** 20170220 02:30:00 Geo IR 40.0 -15.47 136.39 -15.47 136.39 0.32 0.89 0.20 7.4 20170220 01:11:40 GMI 85-92GHz 40.0 -15.34 137.16 -15.50 137.23 0.22 0.63 2.40 8.6 20170220 01:11:40 GMI 37GHz 40.0 *** *** *** *** *** *** 3.00 ***
		20170219 23:30:00 Geo Vis 40.0 -15.53 136.87 -15.53 136.87 0.22 0.62 0.20 *** 20170219 23:30:00 Geo NearIR 40.0 -15.53 136.74 -15.53 136.74 0.53 1.50 0.80 *** 20170219 23:30:00 Geo IR 40.0 -15.33 136.79 -15.33 136.79 0.17 0.49 0.10 45.6

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