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
		20260103 06:40:48 AMSR2 85-92GHz 30.0 -16.80 105.93 -16.80 106.11 0.39 1.11 1.30 2.8 20260103 06:40:48 AMSR2 37GHz 30.0 -16.60 105.78 -16.60 105.96 0.43 1.22 0.60 ***
		20260103 02:48:00 * Metop-C ASCAT 30.0 -16.70 106.31 -16.70 106.36 0.24 0.68 *** *** 20260103 02:06:00 Metop-A ASCAT 30.0 -16.35 106.32 -16.35 106.25 0.39 1.11 *** ***
		20260102 22:50:32 SSMIS-17 85-92GHz 30.0 -16.95 107.72 -16.95 107.61 0.59 1.67 2.50 0.2
		20260102 19:02:27 GMI 85-92GHz 30.0 -16.85 108.09 -16.85 107.84 0.59 1.66 1.60 0.4 20260102 19:02:27 * GMI 37GHz 30.0 -16.55 107.67 -16.55 107.42 0.16 0.44 1.60 ***
		20260102 18:28:23 AMSR2 85-92GHz 30.0 -16.75 108.18 -16.75 108.32 0.41 1.16 1.60 2.4 20260102 18:28:23 AMSR2 37GHz 30.0 -16.70 107.71 -16.70 107.85 0.18 0.50 1.70 ***
		20260102 14:00:00 * Metop-C ASCAT 33.3 -16.65 108.38 -16.66 108.33 0.15 0.42 *** *** 20260102 13:18:00 Metop-A ASCAT 33.9 -16.58 108.93 -16.61 108.80 0.20 0.56 *** ***
		20260102 08:56:19 SSMIS-18 85-92GHz 37.6 -16.54 109.20 -16.49 109.24 0.46 1.30 1.70 1.4
		20260102 05:58:09 AMSR2 85-92GHz 40.0 -15.80 109.77 -15.74 109.78 0.48 1.37 1.20 1.3 20260102 05:58:09 * AMSR2 37GHz 40.0 -15.85 109.56 -15.79 109.57 0.21 0.60 2.70 ***
		20260102 01:27:00 * Metop-C ASCAT 40.0 -15.60 109.54 -15.75 109.53 0.23 0.65 *** ***
		20260101 17:44:44 AMSR2 85-92GHz 45.0 -14.53 109.23 -14.49 109.21 0.49 1.40 0.50 2.7 20260101 17:44:44 * AMSR2 37GHz 45.0 -14.63 109.08 -14.59 109.05 0.08 0.24 0.30 ***
		20260101 13:42:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
		20260101 11:47:26 * SSMIS-16 85-92GHz 45.0 -14.38 108.59 -14.34 108.57 0.14 0.39 0.30 88.9
		20260101 08:12:26 * GMI 85-92GHz 45.0 -13.66 108.26 -13.70 108.27 0.13 0.38 0.10 100.0 20260101 08:12:26 GMI 37GHz 45.0 -13.81 108.31 -13.85 108.32 0.17 0.48 0.30 ***
		20260101 01:45:00 * Metop-C ASCAT 37.9 -12.63 108.01 -12.72 108.05 0.18 0.50 *** *** 20260101 01:06:00 Metop-A ASCAT 36.8 -12.40 107.98 -12.57 108.05 0.20 0.55 *** ***
		20251231 23:11:07 SSMIS-16 85-92GHz 35.0 -12.32 107.45 -12.37 107.49 0.32 0.90 0.20 23.1
		20251231 18:39:08 AMSR2 85-92GHz 35.0 -11.76 106.81 -11.50 106.46 0.26 0.73 0.60 49.4 20251231 18:39:08 * AMSR2 37GHz 35.0 -11.76 106.61 -11.50 106.26 0.22 0.62 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