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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
20250808 00:09:00 Metop-C ASCAT 20.0 40.60 157.61 40.37 157.55 2.29 6.48 *** ***
20250807 21:13:27 * GMI 85-92GHz 20.0 39.46 158.36 39.20 158.30 0.49 1.38 2.70 0.9
20250807 21:13:27 GMI 37GHz 20.0 39.46 158.43 39.20 158.36 0.50 1.41 1.50 ***
20250807 15:20:34 * AMSR2 85-92GHz 20.0 37.49 157.37 37.22 157.32 0.39 1.11 0.50 1.9
20250807 15:20:34 AMSR2 37GHz 20.0 *** *** *** *** *** *** 0.90 ***
20250807 06:34:20 * SSMIS-17 85-92GHz 23.0 34.79 156.78 34.50 156.76 0.39 1.10 1.70 1.0
20250807 05:08:47 * SSMIS-18 85-92GHz 23.8 34.60 156.75 34.70 156.76 0.43 1.21 0.30 1.3
20250807 03:18:31 AMSR2 85-92GHz 24.8 *** *** *** *** *** *** 3.00 ***
20250807 03:18:31 AMSR2 37GHz 24.8 *** *** *** *** *** *** 3.00 ***
20250806 21:58:26 GMI 85-92GHz 25.0 32.17 156.57 31.65 156.63 0.40 1.13 2.40 1.1
20250806 21:58:26 * GMI 37GHz 25.0 32.27 156.46 31.75 156.51 0.35 0.99 1.70 ***
20250806 12:08:26 * GMI 85-92GHz 25.0 29.98 157.20 29.83 157.20 0.36 1.02 2.90 2.1
20250806 12:08:26 GMI 37GHz 25.0 *** *** *** *** *** *** 1.80 ***
20250806 10:30:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20250806 09:39:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20250806 05:20:56 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 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

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