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
		20250415 22:06:00 Metop-C ASCAT 53.9 -27.95 170.98 -28.58 171.03 3.36 9.49 *** ***
		20250415 18:43:44 * SSMIS-16 85-92GHz 52.1 -27.36 171.80 -26.80 171.77 0.51 1.45 1.50 3.8
		20250415 15:45:54 SSMIS-18 85-92GHz 50.4 *** *** *** *** *** *** 2.90 *** 20250415 14:11:32 AMSR2 85-92GHz 50.0 *** *** *** *** *** *** 0.20 *** 20250415 14:11:32 * AMSR2 37GHz 50.0 -24.27 172.52 -24.42 172.52 0.40 1.13 0.30 ***
		20250415 10:54:00 Metop-C ASCAT 49.1 -22.82 171.40 -23.08 171.42 2.91 8.22 *** ***
		20250415 07:38:27 GMI 85-92GHz 46.4 -22.04 172.03 -22.37 172.14 0.28 0.80 0.30 32.3 20250415 07:38:27 GMI 37GHz 46.4 -21.29 171.71 -21.62 171.82 0.43 1.22 0.70 *** 20250415 07:28:07 * SSMIS-16 85-92GHz 46.2 -22.12 172.06 -22.52 172.20 0.25 0.72 0.50 28.5
		20250415 04:30:59 * SSMIS-18 85-92GHz 45.0 -20.88 171.42 -21.19 171.64 0.17 0.48 3.00 -4.5
		20250414 22:24:00 * Metop-C ASCAT 43.7 -18.65 169.40 -18.84 169.55 0.14 0.41 *** ***
		20250414 18:55:16 * SSMIS-16 85-92GHz 40.0 -17.74 170.30 -17.46 170.16 0.17 0.48 3.00 0.0
		20250414 10:24:00 * Metop-A ASCAT 38.7 -16.09 167.98 -16.35 167.98 0.23 0.65 *** ***
		20250414 08:18:27 GMI 85-92GHz 36.9 *** *** *** *** *** *** 1.90 *** 20250414 08:18:27 GMI 37GHz 36.9 -15.49 168.04 -15.53 168.04 0.50 1.41 0.10 *** 20250414 07:43:33 * SSMIS-16 85-92GHz 36.4 -14.46 169.28 -14.62 169.28 0.34 0.97 3.00 0.0
		20250414 06:34:50 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 3.00 *** 20250414 04:46:37 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***

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