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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
20210422 01:32:33 * SSMIS-16 85-92GHz 49.4 -10.39 46.65 -10.39 46.55 0.16 0.47 0.20 71.5
20210421 15:22:25 * SSMIS-17 85-92GHz 57.2 -10.23 47.35 -10.18 47.45 0.15 0.42 1.10 45.8
20210421 13:31:20 SSMIS-18 85-92GHz 58.7 -9.98 47.40 -10.03 47.30 0.20 0.57 0.40 59.4
20210421 13:07:34 SSMI-15 85-92GHz 60.0 -9.90 47.54 -9.96 47.39 0.15 0.42 0.30 78.2
20210421 10:37:11 * AMSR2 85-92GHz 58.3 -9.75 47.72 -9.75 47.64 0.10 0.28 0.50 100.0
20210421 10:37:11 AMSR2 37GHz 58.3 -9.65 47.77 -9.65 47.69 0.15 0.43 0.20 ***
20210421 02:43:52 * SSMIS-17 85-92GHz 48.4 -9.84 48.55 -9.85 48.57 0.12 0.33 0.40 100.0
20210420 22:20:57 AMSR2 85-92GHz 45.0 -9.91 49.12 -9.88 49.03 0.21 0.61 0.50 81.3
20210420 22:20:57 * AMSR2 37GHz 45.0 -10.01 49.12 -9.98 49.03 0.08 0.23 0.30 ***

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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