-- Directory of older time series plots --


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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
20250925 21:19:10 * SSMIS-18 85-92GHz 22.2 21.72 104.77 21.73 104.91 0.60 1.69 0.20 0.1
20250925 08:48:16 * SSMIS-18 85-92GHz 35.3 21.88 106.84 21.89 106.90 0.53 1.51 3.10 0.6
20250925 00:43:27 GMI 85-92GHz 48.8 22.05 108.73 22.05 108.98 0.43 1.22 1.70 1.5
20250924 21:32:48 SSMIS-18 85-92GHz 58.2 *** *** *** *** *** *** 1.60 ***
20250924 11:23:26 GMI 85-92GHz 82.5 21.88 110.97 21.88 110.94 0.17 0.48 0.10 6.1
20250924 11:05:11 SSMIS-16 85-92GHz 83.8 22.27 110.67 22.28 110.57 0.15 0.43 0.50 14.8
20250924 10:19:14 SSMIS-17 85-92GHz 87.0 21.70 111.29 21.73 111.00 0.17 0.48 0.10 1.0
20250923 23:50:37 * SSMIS-16 85-92GHz 110.1 21.25 113.67 21.24 113.73 0.09 0.25 0.30 100.0
20250923 23:04:57 SSMIS-17 85-92GHz 110.8 21.23 113.80 21.24 113.73 0.10 0.27 0.30 100.0
20250923 20:06:18 * SSMIS-18 85-92GHz 113.2 21.29 114.50 21.29 114.43 0.09 0.26 1.60 100.0
20250923 17:59:30 * AMSR2 85-92GHz 115.0 21.15 114.80 21.14 114.89 0.09 0.26 0.40 100.0
20250923 07:34:06 * SSMIS-18 85-92GHz 118.7 20.35 116.87 20.42 116.70 0.10 0.28 0.40 100.0
20250923 00:33:27 GMI 85-92GHz 125.0 19.99 118.26 19.92 118.46 0.10 0.29 0.40 100.0
20250922 20:20:23 SSMIS-18 85-92GHz 125.0 *** *** *** *** *** *** 0.50 ***
20250922 11:13:26 * GMI 85-92GHz 131.3 19.43 120.64 19.44 120.59 0.08 0.23 0.50 100.0
20250922 07:47:44 * SSMIS-18 85-92GHz 137.0 19.36 121.28 19.37 121.14 0.09 0.27 0.50 100.0
20250922 07:47:36 SSMIS-18 85-92GHz 139.3 *** *** *** *** *** *** 2.30 ***
20250921 21:52:45 * SSMIS-17 85-92GHz 144.5 19.33 123.44 19.28 123.71 0.09 0.25 0.60 100.0
20250921 10:03:58 * SSMIS-16 85-92GHz 143.4 18.57 125.77 18.70 125.54 0.10 0.29 0.80 100.0
20250921 04:22:28 AMSR2 85-92GHz 134.6 *** *** *** *** *** *** 5.00 ***
20250921 00:23:27 * GMI 85-92GHz 120.3 18.01 126.99 17.99 127.11 0.09 0.25 0.30 100.0
20250920 22:51:14 SSMIS-16 85-92GHz 119.0 17.88 127.07 17.89 126.98 0.10 0.28 0.30 100.0
20250920 22:07:02 * SSMIS-17 85-92GHz 118.4 17.87 127.08 17.89 126.87 0.09 0.27 0.30 100.0
20250920 19:08:30 SSMIS-18 85-92GHz 115.0 *** *** *** *** *** *** 0.30 ***
20250920 17:29:23 * AMSR2 85-92GHz 113.7 17.81 127.81 17.81 127.81 0.09 0.26 0.40 100.0
20250920 09:33:26 * SSMIS-17 85-92GHz 87.8 16.95 128.82 16.86 128.88 0.10 0.29 0.50 100.0
20250920 01:08:26 GMI 85-92GHz 65.0 *** *** *** *** *** *** 5.00 ***
20250919 19:22:27 * SSMIS-18 85-92GHz 57.3 16.01 130.31 16.02 130.24 0.09 0.26 1.60 100.0
20250919 16:46:44 AMSR2 85-92GHz 53.0 16.11 130.34 16.10 130.33 0.17 0.48 0.70 91.0
20250919 11:48:26 GMI 85-92GHz 44.8 *** *** *** *** *** *** 0.70 ***
20250919 06:47:45 * SSMIS-18 85-92GHz 40.0 16.47 130.12 16.44 130.26 0.35 0.99 2.50 24.1
20250919 04:34:06 AMSR2 85-92GHz 40.0 16.32 130.66 16.34 130.57 0.58 1.63 2.50 1.4
20250918 20:54:50 SSMIS-17 85-92GHz 37.4 16.05 131.89 16.07 131.96 0.62 1.75 1.70 0.2
20250918 19:36:31 * SSMIS-18 85-92GHz 36.3 16.41 131.51 16.37 131.35 0.40 1.13 2.50 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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