-- Directory of older time series plots --


-- Link to ARCHER Track page --

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
20251015 20:34:58 * SSMIS-17 85-92GHz 35.0 22.95 -42.57 22.99 -42.53 0.39 1.09 1.10 5.5
20251015 15:28:27 * GMI 85-92GHz 35.0 21.36 -44.00 21.19 -44.15 0.42 1.17 0.60 12.4
20251015 05:33:27 * GMI 85-92GHz 35.0 20.48 -45.06 20.51 -45.05 0.46 1.29 1.20 8.1
20251014 16:13:26 GMI 85-92GHz 36.5 18.11 -45.00 17.94 -44.86 0.19 0.53 1.00 19.5
20251014 16:00:38 AMSR2 85-92GHz 36.7 18.09 -45.08 17.94 -44.96 0.19 0.52 1.90 11.6
20251014 09:35:44 * SSMIS-17 85-92GHz 44.0 17.40 -44.38 17.25 -44.18 0.35 0.98 0.90 3.9
20251014 06:39:40 * SSMIS-18 85-92GHz 48.9 17.11 -43.70 16.96 -43.51 0.53 1.49 2.90 1.4
20251013 06:54:23 * SSMIS-18 85-92GHz 40.0 13.33 -39.88 13.17 -39.60 0.51 1.45 2.00 2.8
20251013 04:25:27 AMSR2 85-92GHz 40.0 13.04 -39.34 13.19 -39.60 0.53 1.49 1.20 3.8

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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