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
		20230213 13:22:59 SSMIS-17 85-92GHz 77.6 *** *** *** *** *** *** 1.30 ***
		20230213 11:37:01 * SSMIS-18 85-92GHz 78.5 -20.28 73.29 -20.27 73.30 0.15 0.42 2.10 10.1
		20230213 09:02:47 AMSR2 85-92GHz 80.0 -19.55 73.41 -19.50 73.44 0.17 0.47 0.20 62.3
		20230213 04:12:24 * GMI 85-92GHz 79.3 -18.78 73.59 -18.90 73.49 0.11 0.31 0.30 100.0
		20230213 00:49:49 SSMIS-17 85-92GHz 72.9 -18.49 73.89 -18.37 74.00 0.11 0.31 0.30 100.0 20230213 00:49:46 * SSMIS-17 85-92GHz 77.8 -18.47 73.91 -18.35 74.03 0.11 0.30 0.30 100.0 20230212 23:03:07 * SSMIS-18 85-92GHz 77.1 -18.26 74.01 -18.30 73.97 0.10 0.29 0.30 100.0
		20230212 20:51:22 * AMSR2 85-92GHz 76.2 -18.06 74.10 -18.03 74.13 0.08 0.22 0.40 100.0
		20230212 14:52:24 GMI 85-92GHz 72.4 -17.48 74.59 -17.45 74.62 0.13 0.36 0.50 100.0 20230212 13:36:58 SSMIS-17 85-92GHz 71.3 -17.46 74.80 -17.55 74.73 0.12 0.33 0.40 100.0
		20230212 12:12:55 * SSMIS-16 85-92GHz 70.2 -17.37 74.87 -17.31 74.93 0.10 0.29 0.30 100.0
		20230212 08:20:25 * AMSR2 85-92GHz 67.0 -17.00 75.19 -17.01 75.18 0.09 0.26 0.30 100.0
		20230212 01:02:39 * SSMIS-17 85-92GHz 60.9 -16.31 76.07 -16.44 75.85 0.09 0.25 0.40 100.0
		20230211 23:38:10 SSMIS-16 85-92GHz 59.7 -16.15 76.34 -16.14 76.36 0.15 0.43 0.30 90.7
		20230211 20:07:51 * AMSR2 85-92GHz 56.8 -16.09 76.69 -16.11 76.63 0.07 0.19 0.20 100.0
		20230211 13:51:01 * SSMIS-17 85-92GHz 53.3 -15.86 77.93 -15.86 77.82 0.17 0.49 0.20 80.5
		20230211 12:26:17 SSMIS-16 85-92GHz 52.7 -15.87 78.17 -15.87 78.33 0.19 0.54 0.30 77.0
		20230211 04:22:24 * GMI 85-92GHz 49.3 -15.73 79.70 -15.72 79.50 0.16 0.46 1.80 93.0
		20230211 01:15:59 * SSMIS-17 85-92GHz 48.0 -15.57 80.26 -15.55 80.04 0.10 0.28 0.20 86.6
		20230210 23:50:58 * SSMIS-16 85-92GHz 47.4 -15.38 80.51 -15.39 80.58 0.09 0.26 0.30 99.9
		20230210 15:07:24 GMI 85-92GHz 45.0 -15.70 81.64 -15.71 81.75 0.39 1.12 0.20 32.2
		20230210 10:35:19 * SSMIS-18 85-92GHz 45.0 -16.48 82.61 -16.46 82.45 0.20 0.56 0.60 62.8
		20230210 08:32:39 AMSR2 85-92GHz 45.0 -16.35 82.71 -16.35 82.72 0.26 0.75 0.10 56.7

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