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
		20251218 15:51:00 * Metop-C ASCAT 25.0 -8.77 91.13 -8.87 91.23 0.23 0.66 *** *** 20251218 13:12:27 GMI 85-92GHz 25.0 *** *** *** *** *** *** 3.00 *** 20251218 13:12:27 GMI 37GHz 25.0 -9.91 90.41 -9.82 90.32 0.53 1.49 1.00 ***
		20251218 02:36:00 * Metop-A ASCAT 26.9 -9.05 90.97 -9.06 90.98 0.24 0.67 *** ***
		20251217 22:11:51 * SSMIS-18 85-92GHz 29.3 -10.29 91.62 -10.23 91.52 0.50 1.42 2.00 1.6

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, F-Decks