-- 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
20250929 16:51:45 * SSMIS-18 85-92GHz 61.9 44.71 -178.90 44.79 -178.30 0.26 0.74 1.60 8.0
20250929 13:58:08 * AMSR2 85-92GHz 66.7 44.78 179.40 44.82 179.67 0.29 0.83 0.80 3.8
20250929 04:38:27 GMI 85-92GHz 86.4 *** *** *** *** *** *** 0.30 ***
20250929 02:00:33 AMSR2 85-92GHz 90.0 *** *** *** *** *** *** 3.40 ***
20250928 20:33:26 GMI 85-92GHz 92.9 41.24 170.95 41.22 170.92 0.17 0.47 0.20 7.8
20250928 17:06:20 SSMIS-18 85-92GHz 96.5 40.14 169.13 40.29 169.29 0.16 0.44 0.50 34.9
20250928 14:54:56 * AMSR2 85-92GHz 100.1 39.22 168.31 39.05 168.14 0.11 0.31 0.70 100.0
20250928 04:44:39 * SSMIS-18 85-92GHz 106.9 35.36 164.04 35.57 164.36 0.13 0.36 0.30 100.0
20250927 21:13:27 * GMI 85-92GHz 85.7 33.69 161.48 33.56 161.25 0.12 0.35 0.40 100.0
20250927 04:57:54 * SSMIS-18 85-92GHz 60.0 31.70 157.11 31.75 157.26 0.10 0.30 0.60 100.0
20250926 21:53:25 GMI 85-92GHz 56.5 31.47 155.18 31.49 154.92 0.18 0.51 0.20 70.8
20250926 05:12:52 * SSMIS-18 85-92GHz 55.7 31.90 153.78 31.90 153.78 0.21 0.59 0.60 73.5
20250925 16:04:53 AMSR2 85-92GHz 60.0 32.13 154.11 32.08 153.97 0.17 0.47 0.70 63.9
20250925 07:28:27 * GMI 85-92GHz 67.5 32.62 155.67 32.51 155.45 0.19 0.54 0.20 19.8
20250925 05:27:16 SSMIS-18 85-92GHz 63.6 32.92 156.27 32.92 156.26 0.38 1.08 0.80 2.5
20250925 05:26:45 * SSMIS-18 85-92GHz 69.5 32.80 156.19 32.80 156.18 0.25 0.72 0.70 3.8
20250924 21:43:27 GMI 85-92GHz 65.0 *** *** *** *** *** *** 5.00 ***
20250924 15:22:09 AMSR2 85-92GHz 62.8 32.15 157.23 31.97 157.15 0.19 0.54 1.30 35.9
20250924 08:13:26 GMI 85-92GHz 53.7 30.65 155.94 30.69 156.01 0.17 0.48 0.50 64.5
20250924 07:44:22 * SSMIS-16 85-92GHz 52.9 30.64 155.85 30.73 156.06 0.17 0.49 0.80 67.7
20250924 05:40:42 SSMIS-18 85-92GHz 50.5 30.69 155.41 30.69 155.38 0.20 0.56 1.80 71.5
20250923 22:23:26 GMI 85-92GHz 61.3 30.45 154.77 30.45 154.90 0.28 0.79 1.00 53.9
20250923 20:24:42 SSMIS-16 85-92GHz 63.0 30.35 154.45 30.35 154.45 0.38 1.08 0.90 8.1
20250923 19:39:07 * SSMIS-17 85-92GHz 63.6 29.55 153.85 29.55 153.92 0.31 0.89 2.30 8.9
20250923 08:53:27 GMI 85-92GHz 75.0 30.50 153.24 30.51 153.24 0.20 0.56 0.20 26.4
20250923 07:58:01 SSMIS-16 85-92GHz 75.0 30.47 153.42 30.47 153.42 0.22 0.62 0.20 5.9
20250923 05:55:20 * SSMIS-18 85-92GHz 75.1 30.20 153.12 30.19 153.12 0.18 0.50 3.60 29.5
20250922 23:08:27 * GMI 85-92GHz 84.3 30.10 152.76 30.10 152.78 0.14 0.41 3.80 45.7
20250922 19:53:22 * SSMIS-17 85-92GHz 81.6 30.25 152.71 30.25 152.74 0.18 0.50 0.10 4.1
20250922 18:35:38 * SSMIS-18 85-92GHz 80.0 30.90 152.24 30.90 152.20 0.20 0.56 0.40 1.4
20250922 06:08:53 SSMIS-18 85-92GHz 105.0 *** *** *** *** *** *** 0.30 ***
20250921 18:50:10 * SSMIS-18 85-92GHz 110.0 29.41 150.74 29.30 150.75 0.10 0.29 0.70 100.0
20250921 08:24:37 * SSMIS-16 85-92GHz 123.0 27.91 151.58 27.92 151.57 0.12 0.33 0.20 93.8
20250921 07:40:25 * SSMIS-17 85-92GHz 123.6 27.90 151.64 28.01 151.59 0.11 0.32 0.20 100.0
20250920 22:53:27 GMI 85-92GHz 124.1 *** *** *** *** *** *** 5.00 ***
20250920 21:06:47 * SSMIS-16 85-92GHz 122.6 27.06 153.07 27.02 153.18 0.11 0.30 0.30 100.0
20250920 20:22:36 * SSMIS-17 85-92GHz 122.0 26.96 153.27 26.97 153.25 0.10 0.30 0.30 100.0
20250920 15:47:59 * AMSR2 85-92GHz 110.8 26.76 154.15 26.62 154.42 0.09 0.27 0.30 100.0
20250920 09:28:27 * GMI 85-92GHz 90.8 26.06 155.36 26.02 155.54 0.11 0.30 0.40 100.0
20250920 07:54:11 * SSMIS-17 85-92GHz 88.2 25.94 155.61 25.97 155.50 0.10 0.28 0.30 100.0
20250920 04:54:46 * SSMIS-18 85-92GHz 82.3 25.73 156.20 25.76 156.12 0.09 0.25 0.40 100.0
20250919 23:38:26 GMI 85-92GHz 69.7 25.38 156.91 25.37 156.93 0.15 0.44 0.60 97.8
20250919 17:39:34 SSMIS-18 85-92GHz 63.0 25.01 158.06 25.00 158.08 0.09 0.24 0.50 100.0
20250919 17:38:34 * SSMIS-18 85-92GHz 64.7 24.98 158.00 24.97 158.03 0.09 0.25 0.50 100.0
20250919 15:05:31 AMSR2 85-92GHz 62.6 24.82 158.52 24.78 158.62 0.12 0.35 0.50 100.0
20250919 05:08:05 * SSMIS-18 85-92GHz 48.6 23.94 160.18 23.97 160.11 0.15 0.44 0.50 84.9
20250918 19:54:02 SSMIS-16 85-92GHz 36.6 23.67 162.15 23.69 162.07 0.25 0.71 0.60 30.2
20250918 19:10:56 * SSMIS-17 85-92GHz 35.0 23.54 162.17 23.58 161.98 0.17 0.48 0.20 56.9
20250918 17:53:31 SSMIS-18 85-92GHz 31.6 23.47 162.23 23.45 162.28 0.20 0.58 0.90 61.4
20250918 17:52:49 * SSMIS-18 85-92GHz 34.9 23.39 162.26 23.37 162.31 0.18 0.52 1.00 58.5

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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