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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
20260727 04:01:38   SSMIS-18 89-92GHz 31 13.30 177.21 13.29 177.44 0.23 0.66 0.60 56
20260727 03:34:55 * GMI 37GHz 30 13.20 177.36 13.19 177.49 0.19 0.53 0.60 ***
20260727 03:34:55   GMI 89-92GHz 30 13.30 177.26 13.29 177.39 0.30 0.86 0.40 21
20260727 02:30:00   HIMAWARI9 IR 30 13.25 177.51 13.25 177.39 3.36 9.49 0.20 1
20260727 02:30:00   HIMAWARI9 SWIR 30 12.95 177.15 12.95 177.03 0.55 1.56 0.90 ***
20260727 01:22:13   AMSR2 37GHz 30 13.10 177.98 13.10 178.30 0.38 1.07 0.30 ***
20260727 01:22:13 * AMSR2 89-92GHz 30 13.15 177.98 13.15 178.30 0.30 0.84 0.50 46

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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