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
		20260123 20:47:27 GMI 85-92GHz 30.0 -26.19 -175.79 -26.19 -175.74 0.43 1.20 3.00 1.4 20260123 20:47:27 * GMI 37GHz 30.0 -26.64 -176.46 -26.64 -176.40 0.42 1.18 3.00 ***
		20260123 09:57:00 Metop-C ASCAT 31.1 *** *** *** *** *** *** *** ***
		20260122 21:32:26 GMI 85-92GHz 35.0 *** *** *** *** *** *** 3.00 *** 20260122 21:32:26 GMI 37GHz 35.0 *** *** *** *** *** *** 3.00 ***
		20260122 13:10:21 AMSR2 85-92GHz 39.0 *** *** *** *** *** *** 3.00 *** 20260122 13:10:21 AMSR2 37GHz 39.0 *** *** *** *** *** *** 3.00 ***
		20260122 09:39:00 Metop-A ASCAT 38.0 *** *** *** *** *** *** *** ***
		20260121 21:51:00 Metop-C ASCAT 40.0 -23.27 165.89 -22.97 165.32 0.26 0.74 *** *** 20260121 21:12:00 * Metop-A ASCAT 40.0 -23.13 165.61 -22.97 165.31 0.24 0.68 *** *** 20260121 20:03:34 SSMIS-16 85-92GHz 40.0 -22.80 165.51 -22.90 165.69 0.50 1.41 3.00 0.0
		20260121 14:04:45 AMSR2 85-92GHz 40.0 -21.23 163.36 -21.32 163.45 0.31 0.88 1.90 10.3 20260121 14:04:45 * AMSR2 37GHz 40.0 -21.43 163.41 -21.52 163.51 0.15 0.44 0.90 ***
		20260121 10:42:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** *** 20260121 10:03:00 * Metop-A ASCAT 40.0 -20.37 162.27 -20.77 162.71 0.21 0.58 *** ***
		20260121 03:10:45 AMSR2 85-92GHz 37.6 -18.18 160.30 -18.00 160.07 0.45 1.27 1.60 2.1 20260121 03:10:45 * AMSR2 37GHz 37.6 -18.53 160.19 -18.35 159.96 0.27 0.76 0.60 ***

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