-- 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
20250928 17:48:26 GMI 85-92GHz 32.6 37.52 -7.90 37.53 -7.91 0.59 1.68 2.00 0.1
20250928 16:39:19 * SSMIS-18 85-92GHz 33.1 37.61 -7.96 37.48 -7.84 0.56 1.57 2.10 0.7
20250928 12:49:08 AMSR2 85-92GHz 34.7 *** *** *** *** *** *** 3.20 ***
20250928 08:03:26 GMI 85-92GHz 36.6 *** *** *** *** *** *** 5.00 ***
20250928 05:15:06 * SSMIS-18 85-92GHz 37.8 39.30 -9.28 39.22 -9.17 0.47 1.33 0.90 1.3
20250927 13:44:55 AMSR2 85-92GHz 48.5 41.27 -13.06 41.23 -12.75 0.31 0.87 0.20 12.3
20250927 05:29:16 SSMIS-18 85-92GHz 52.7 *** *** *** *** *** *** 2.80 ***
20250926 19:13:26 GMI 85-92GHz 57.0 *** *** *** *** *** *** 1.30 ***
20250926 17:08:19 * SSMIS-18 85-92GHz 57.9 40.55 -21.85 40.61 -21.58 0.30 0.86 2.50 7.3
20250926 05:44:12 SSMIS-18 85-92GHz 62.6 38.58 -26.65 38.58 -26.64 0.32 0.89 3.10 7.1
20250926 05:43:58 SSMIS-18 85-92GHz 62.6 38.58 -26.59 38.58 -26.58 0.31 0.89 3.00 9.0
20250926 03:35:43 AMSR2 85-92GHz 63.5 38.18 -28.38 38.06 -28.82 0.30 0.86 2.80 6.5
20250925 19:53:26 GMI 85-92GHz 65.0 37.07 -32.35 37.17 -31.89 0.28 0.80 2.50 6.9
20250925 17:21:52 SSMIS-18 85-92GHz 65.0 36.50 -33.46 36.54 -33.25 0.32 0.90 1.80 3.3
20250925 15:34:39 AMSR2 85-92GHz 65.0 36.41 -34.73 36.32 -35.17 0.36 1.01 2.10 2.1
20250925 07:40:26 SSMIS-18 85-92GHz 72.2 *** *** *** *** *** *** 0.90 ***
20250925 04:31:55 * AMSR2 85-92GHz 75.0 35.90 -40.46 35.96 -39.71 0.14 0.41 1.00 100.0
20250924 16:30:03 AMSR2 85-92GHz 91.2 35.78 -47.69 35.80 -47.01 0.16 0.45 0.20 59.5
20250924 12:23:26 * GMI 85-92GHz 95.0 35.73 -49.89 35.70 -50.20 0.13 0.37 0.40 100.0
20250924 09:58:13 SSMIS-16 85-92GHz 96.7 *** *** *** *** *** *** 0.30 ***
20250924 07:55:07 SSMIS-18 85-92GHz 100.0 35.54 -52.23 35.60 -51.88 0.13 0.37 0.40 91.6
20250924 07:55:06 * SSMIS-18 85-92GHz 98.4 35.43 -52.18 35.50 -51.83 0.13 0.38 0.40 81.3
20250923 21:34:23 * SSMIS-16 85-92GHz 112.0 34.58 -55.95 34.50 -56.26 0.14 0.40 0.20 84.6
20250923 20:48:48 * SSMIS-17 85-92GHz 112.7 34.56 -56.25 34.55 -56.27 0.13 0.37 0.30 96.4
20250923 17:25:08 * AMSR2 85-92GHz 115.5 34.13 -57.54 34.17 -57.43 0.12 0.33 0.30 100.0
20250923 13:08:27 GMI 85-92GHz 120.0 33.65 -58.77 33.47 -59.12 0.12 0.35 0.30 100.0
20250923 08:09:33 * SSMIS-18 85-92GHz 120.0 33.20 -60.07 33.27 -59.95 0.12 0.35 0.30 100.0
20250923 06:23:43 * AMSR2 85-92GHz 120.0 32.85 -60.45 32.77 -60.56 0.10 0.29 0.30 100.0
20250922 19:44:45 * SSMIS-18 85-92GHz 116.5 31.45 -62.06 31.58 -61.94 0.13 0.36 0.30 100.0
20250922 13:48:26 GMI 85-92GHz 108.0 *** *** *** *** *** *** 5.00 ***
20250921 19:57:47 * SSMIS-18 85-92GHz 65.0 28.26 -61.86 28.37 -61.93 0.18 0.50 0.20 55.5
20250921 17:35:51 * AMSR2 85-92GHz 64.3 28.05 -61.29 28.07 -61.31 0.13 0.36 0.60 95.6
20250921 10:42:00 SSMIS-16 85-92GHz 55.0 27.38 -60.46 27.47 -60.63 0.42 1.19 0.40 13.4
20250921 08:39:58 * SSMIS-18 85-92GHz 55.0 27.23 -60.49 27.23 -60.50 0.20 0.55 0.30 84.3
20250920 23:28:27 * GMI 85-92GHz 55.0 25.83 -58.75 25.87 -58.77 0.18 0.50 0.90 95.1
20250920 22:13:02 SSMIS-16 85-92GHz 55.0 25.53 -58.84 25.36 -58.76 0.19 0.53 1.00 78.9
20250920 21:29:07 SSMIS-17 85-92GHz 55.0 25.74 -58.91 25.66 -58.87 0.23 0.65 0.30 49.7
20250920 20:11:21 * SSMIS-18 85-92GHz 55.0 25.44 -58.95 25.51 -58.98 0.18 0.50 1.00 74.0
20250920 20:10:52 SSMIS-18 85-92GHz 55.0 25.39 -58.96 25.45 -58.99 0.20 0.55 1.00 68.5
20250920 16:52:10 * AMSR2 85-92GHz 53.1 24.93 -58.34 25.02 -58.36 0.13 0.36 0.50 100.0
20250920 13:33:27 * GMI 85-92GHz 47.6 24.86 -58.36 24.97 -58.37 0.21 0.59 0.10 61.7
20250920 10:12:23 SSMIS-17 85-92GHz 45.0 *** *** *** *** *** *** 0.20 ***
20250920 05:55:25 AMSR2 85-92GHz 45.0 23.89 -57.85 23.87 -57.82 0.55 1.55 0.10 0.9
20250920 00:08:26 GMI 85-92GHz 45.0 22.92 -56.88 22.86 -56.83 0.37 1.05 0.40 15.5
20250919 21:42:11 SSMIS-17 85-92GHz 45.0 22.86 -56.51 22.65 -56.43 0.51 1.45 1.80 3.5
20250919 07:27:30 * SSMIS-18 85-92GHz 45.0 21.71 -54.25 21.75 -54.46 0.30 0.86 1.90 20.4
20250918 18:56:13 * SSMIS-18 85-92GHz 45.0 20.54 -52.25 20.46 -52.10 0.40 1.13 1.50 2.7
20250918 17:02:56 AMSR2 85-92GHz 45.0 20.21 -52.15 20.27 -52.25 0.34 0.95 3.40 3.8
20250918 13:23:27 GMI 85-92GHz 45.0 20.28 -51.49 20.40 -51.73 0.28 0.80 3.50 5.4
20250918 07:42:44 * SSMIS-18 85-92GHz 45.0 20.02 -50.51 20.07 -50.77 0.40 1.12 2.90 1.4
20250918 07:41:13 SSMIS-18 85-92GHz 45.0 19.97 -50.50 20.02 -50.77 0.38 1.08 3.90 1.7
20250918 00:03:27 GMI 85-92GHz 45.0 19.25 -49.06 19.24 -49.01 0.29 0.82 3.70 18.8
20250917 21:11:07 SSMIS-16 85-92GHz 45.0 *** *** *** *** *** *** 4.90 ***
20250917 19:09:59 SSMIS-18 85-92GHz 45.0 *** *** *** *** *** *** 3.80 ***
20250917 16:19:15 * AMSR2 85-92GHz 43.6 18.52 -47.76 18.88 -48.08 0.46 1.29 0.20 2.8

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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