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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
20260905 06:22:26   SSMIS-18 89-92GHz 25 27.16 135.15 27.10 135.19 0.56 1.58 3.10 0
20260905 05:50:45   GMI 37GHz 25 27.22 136.61 27.24 136.60 0.40 1.13 1.70 ***
20260905 05:50:45 * GMI 89-92GHz 25 27.42 135.54 27.44 135.53 0.37 1.05 0.30 3
20260905 05:30:00   HIMAWARI9 IR 25 27.28 134.43 27.36 134.38 3.36 9.49 0.30 47
20260905 05:30:00   HIMAWARI9 SWIR 25 27.35 134.79 27.44 134.74 1.14 3.23 1.00 ***
20260905 02:30:00 * HIMAWARI9 IR 25 25.92 138.09 26.00 138.04 2.05 5.80 0.70 3
20260905 02:30:00   HIMAWARI9 SWIR 25 27.24 133.89 27.33 133.84 2.88 8.13 0.10 ***
20260904 23:20:00   HIMAWARI9 IR 30 24.27 138.53 24.52 138.44 3.36 9.49 0.60 3
20260904 23:20:00 * HIMAWARI9 SWIR 30 24.09 138.45 24.35 138.36 0.45 1.28 0.60 ***
20260904 21:21:57   SSMIS-17 89-92GHz 30 25.41 135.80 25.27 135.85 0.51 1.44 1.20 1
20260904 20:10:00   HIMAWARI9 IR 30 23.82 138.52 24.14 138.41 3.36 9.49 0.70 5
20260904 20:10:00 * HIMAWARI9 SWIR 30 23.72 138.52 24.04 138.41 0.43 1.21 0.70 ***
20260904 19:06:02 * SSMIS-18 89-92GHz 40 25.15 137.24 24.72 137.39 0.38 1.06 0.50 2
20260904 17:30:00   HIMAWARI9 IR 40 23.73 135.26 23.86 135.20 3.36 9.49 0.60 2
20260904 17:30:00   HIMAWARI9 SWIR 40 23.05 139.44 23.18 139.38 1.75 4.93 0.60 ***
20260904 14:20:00   HIMAWARI9 IR 40 21.39 138.78 21.56 138.70 3.36 9.49 0.90 10
20260904 14:20:00 * HIMAWARI9 SWIR 40 21.74 138.78 21.91 138.70 0.75 2.13 0.80 ***

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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