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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
20260807 08:30:00   HIMAWARI9 IR 40 29.48 160.05 29.55 159.96 2.80 7.92 1.00 0
20260807 08:30:00 * HIMAWARI9 SWIR 40 29.63 160.10 29.70 160.02 0.83 2.34 0.70 ***
20260807 07:10:02 * SSMIS-17 89-92GHz 45 29.81 160.40 29.65 160.60 0.31 0.88 0.20 3
20260807 05:00:00   HIMAWARI9 IR 45 30.71 159.39 30.79 159.32 3.36 9.49 1.00 8
20260807 05:00:00   HIMAWARI9 SWIR 45 28.38 158.52 28.47 158.45 0.83 2.36 0.60 ***
20260807 02:46:55   AMSR2 37GHz 42 29.49 160.52 29.51 160.50 0.24 0.67 1.10 ***
20260807 02:46:55   AMSR2 89-92GHz 42 29.44 160.46 29.46 160.45 0.23 0.64 1.00 8
20260807 02:30:00   HIMAWARI9 IR 45 31.08 159.06 31.12 159.02 3.36 9.49 0.30 21
20260807 02:30:00   HIMAWARI9 SWIR 45 30.18 160.84 30.22 160.81 3.33 9.40 0.20 ***
20260807 02:09:55 * GMI 37GHz 45 29.54 160.49 29.61 160.44 0.14 0.40 0.70 ***
20260807 02:09:55   GMI 89-92GHz 45 29.44 160.43 29.51 160.38 0.16 0.46 1.00 19

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: ARCHER Track page

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