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
		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: ARCHER Track page