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
		20250819 14:24:00 Metop-C ASCAT 20.0 *** *** *** *** *** *** *** *** 20250819 14:21:00 Metop-C ASCAT 20.0 *** *** *** *** *** *** *** ***
		20250819 03:12:00 Metop-C ASCAT 21.6 *** *** *** *** *** *** *** *** 20250819 02:21:00 Metop-A ASCAT 22.0 *** *** *** *** *** *** *** ***
		20250818 23:39:42 SSMIS-16 85-92GHz 23.5 *** *** *** *** *** *** 0.80 *** 20250818 23:11:14 * SSMIS-17 85-92GHz 23.8 20.91 106.30 20.95 106.30 0.47 1.34 3.00 0.0
		20250818 18:24:15 AMSR2 85-92GHz 25.0 *** *** *** *** *** *** 0.70 *** 20250818 18:24:15 * AMSR2 37GHz 25.0 21.06 107.13 20.92 107.14 0.46 1.31 1.20 ***
		20250818 14:42:00 Metop-C ASCAT 27.7 *** *** *** *** *** *** *** *** 20250818 13:54:00 * Metop-A ASCAT 28.4 20.16 107.51 20.28 107.51 0.13 0.36 *** ***
		20250818 11:28:26 * GMI 85-92GHz 29.6 19.49 107.89 19.49 107.89 0.25 0.70 3.00 0.0 20250818 11:28:26 GMI 37GHz 29.6 19.64 107.99 19.64 107.99 0.48 1.36 3.00 ***
		20250818 06:13:42 AMSR2 85-92GHz 25.0 *** *** *** *** *** *** 0.30 *** 20250818 06:13:42 * AMSR2 37GHz 25.0 20.32 106.87 20.26 106.87 0.55 1.56 0.40 ***

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, F-Decks