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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
20260121 12:33:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20260121 00:45:00 * Metop-A ASCAT 29.7 16.48 133.60 16.59 133.54 0.22 0.62 *** ***
20260121 00:17:26 GMI 85-92GHz 29.9 *** *** *** *** *** *** 3.00 ***
20260121 00:17:26 GMI 37GHz 29.9 *** *** *** *** *** *** 3.00 ***
20260120 19:05:00 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 1.30 ***
20260120 16:28:32 * AMSR2 85-92GHz 31.3 17.81 131.98 17.70 132.12 0.36 1.02 2.90 2.7
20260120 16:28:32 AMSR2 37GHz 31.3 *** *** *** *** *** *** 1.10 ***
20260120 12:54:00 * Metop-C ASCAT 35.0 17.45 132.19 17.48 131.88 0.16 0.44 *** ***
20260120 04:16:34 * AMSR2 85-92GHz 35.0 17.34 129.91 17.39 130.18 0.49 1.37 1.90 1.5
20260120 04:16:34 AMSR2 37GHz 35.0 *** *** *** *** *** *** 2.10 ***
20260120 01:06:00 Metop-A ASCAT 34.5 *** *** *** *** *** *** *** ***
20260119 21:59:45 * SSMIS-17 85-92GHz 33.3 17.32 128.41 17.23 128.17 0.48 1.37 2.90 0.5
20260119 19:19:26 * SSMIS-18 85-92GHz 31.1 17.29 128.69 17.34 128.89 0.39 1.11 2.70 2.1
20260119 17:23:51 AMSR2 85-92GHz 30.0 17.05 128.10 17.05 128.12 0.43 1.21 3.00 1.9
20260119 17:23:51 * AMSR2 37GHz 30.0 16.95 128.00 16.95 128.02 0.26 0.73 2.90 ***
20260119 13:27:27 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20260119 13:27:27 GMI 37GHz 30.0 16.60 128.07 16.60 128.26 0.45 1.27 3.00 ***
20260119 13:15:00 * Metop-C ASCAT 30.0 16.89 127.67 16.89 127.90 0.14 0.40 *** ***
20260119 09:25:48 * SSMIS-17 85-92GHz 32.1 17.31 127.10 17.25 127.03 0.57 1.62 0.20 0.3
20260119 05:11:43 * AMSR2 85-92GHz 35.0 16.53 126.32 16.54 126.32 0.44 1.23 0.60 6.3
20260119 05:11:43 AMSR2 37GHz 35.0 16.58 126.27 16.59 126.27 0.51 1.44 0.30 ***
20260118 22:14:18 * SSMIS-17 85-92GHz 33.5 16.27 126.60 16.34 126.76 0.42 1.20 1.50 4.7
20260118 19:33:36 * SSMIS-18 85-92GHz 31.3 16.25 126.27 16.34 126.43 0.44 1.25 0.60 1.2
20260118 14:07:26 GMI 85-92GHz 30.0 16.05 126.22 16.10 126.22 0.43 1.21 1.00 5.6
20260118 14:07:26 GMI 37GHz 30.0 15.55 125.86 15.60 125.86 0.25 0.70 1.40 ***
20260118 13:33:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20260118 12:54:00 * Metop-A ASCAT 30.0 15.57 125.60 15.38 125.59 0.13 0.38 *** ***
20260118 00:48:00 * Metop-C ASCAT 40.0 14.39 125.23 14.36 125.17 0.13 0.37 *** ***
20260117 19:48:07 SSMIS-18 85-92GHz 43.5 *** *** *** *** *** *** 2.80 ***
20260117 17:36:40 AMSR2 85-92GHz 45.3 14.16 125.49 14.16 125.48 0.34 0.97 0.10 4.5
20260117 17:36:40 * AMSR2 37GHz 45.3 14.26 125.49 14.26 125.48 0.30 0.86 1.40 ***
20260117 14:52:26 GMI 85-92GHz 47.6 *** *** *** *** *** *** 3.00 ***
20260117 14:52:26 GMI 37GHz 47.6 *** *** *** *** *** *** 3.00 ***
20260117 07:12:27 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 0.10 ***
20260117 05:23:14 * AMSR2 85-92GHz 49.5 13.78 125.42 13.79 125.41 0.21 0.60 2.80 67.7
20260117 05:23:14 AMSR2 37GHz 49.5 *** *** *** *** *** *** 2.80 ***
20260117 01:32:27 GMI 85-92GHz 46.3 *** *** *** *** *** *** 0.40 ***
20260117 01:32:27 * GMI 37GHz 46.3 13.37 125.96 13.46 125.85 0.20 0.57 2.10 ***
20260117 00:27:00 Metop-A ASCAT 45.0 13.75 125.68 13.65 125.79 0.23 0.66 *** ***
20260116 20:02:38 SSMIS-18 85-92GHz 45.0 *** *** *** *** *** *** 1.70 ***
20260116 16:54:26 AMSR2 85-92GHz 44.1 12.43 126.67 12.50 126.55 0.59 1.68 1.90 0.9
20260116 16:54:26 AMSR2 37GHz 44.1 12.53 126.52 12.60 126.40 0.44 1.25 2.70 ***
20260116 12:36:00 Metop-C ASCAT 40.0 12.04 126.59 11.94 126.74 0.15 0.42 *** ***
20260116 11:57:00 * Metop-A ASCAT 40.0 12.05 126.75 12.00 126.81 0.13 0.37 *** ***
20260116 07:26:08 SSMIS-18 85-92GHz 38.1 *** *** *** *** *** *** 1.10 ***
20260116 04:39:24 AMSR2 85-92GHz 36.9 10.92 127.77 11.02 127.68 0.57 1.60 1.10 0.4
20260116 04:39:24 AMSR2 37GHz 36.9 *** *** *** *** *** *** 0.40 ***
20260116 01:27:00 * Metop-C ASCAT 35.6 11.38 128.51 11.50 128.41 0.11 0.32 *** ***
20260116 00:51:00 Metop-A ASCAT 35.4 11.36 128.56 11.20 128.68 0.13 0.36 *** ***
20260115 14:42:26 * GMI 85-92GHz 31.1 10.06 128.86 10.05 128.86 0.33 0.93 1.20 3.7
20260115 14:42:26 GMI 37GHz 31.1 10.26 128.96 10.25 128.96 0.55 1.56 0.20 ***
20260115 07:39:34 * SSMIS-18 85-92GHz 30.0 9.95 128.95 9.95 128.95 0.63 1.79 2.10 0.0
20260114 21:32:00 * SSMIS-17 85-92GHz 27.9 9.02 130.09 9.07 130.18 0.53 1.50 2.70 0.3
20260114 17:07:16 AMSR2 85-92GHz 25.0 8.96 130.04 8.96 130.01 0.51 1.44 2.60 1.4
20260114 17:07:16 * AMSR2 37GHz 25.0 9.21 130.14 9.21 130.11 0.45 1.27 1.00 ***

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: Summary table, ARCHER Track table, ARCHER Track Image Archive, Intensity Estimation, ARCHER-ERC page, F-Decks

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