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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
20250814 18:47:10 AMSR2 85-92GHz 20.0 27.28 109.79 27.15 110.09 0.61 1.73 3.00 0.2
20250814 18:47:10 * AMSR2 37GHz 20.0 26.53 110.86 26.40 111.16 0.41 1.15 0.20 ***
20250814 14:27:00 Metop-C ASCAT 21.5 *** *** *** *** *** *** *** ***
20250814 13:36:00 Metop-A ASCAT 21.8 *** *** *** *** *** *** *** ***
20250814 12:43:27 GMI 85-92GHz 22.2 26.89 111.37 26.77 111.67 0.63 1.78 2.40 0.1
20250814 12:43:27 * GMI 37GHz 22.2 26.74 111.09 26.62 111.39 0.51 1.45 0.20 ***
20250814 10:23:03 SSMIS-16 85-92GHz 23.2 26.85 112.56 26.97 112.28 0.49 1.39 2.80 2.8
20250814 09:56:58 * SSMIS-17 85-92GHz 23.4 26.16 112.50 26.01 112.86 0.47 1.34 0.80 2.4
20250814 08:32:42 SSMIS-18 85-92GHz 23.9 *** *** *** *** *** *** 1.70 ***
20250814 01:33:00 Metop-C ASCAT 34.9 *** *** *** *** *** *** *** ***
20250813 23:18:26 * GMI 85-92GHz 39.9 24.50 115.11 24.52 115.06 0.24 0.68 0.70 22.5
20250813 23:18:26 GMI 37GHz 39.9 24.90 114.62 24.92 114.56 0.44 1.26 0.50 ***
20250813 22:40:08 SSMIS-17 85-92GHz 41.3 24.48 115.35 24.57 115.11 0.25 0.72 0.60 22.5
20250813 18:04:37 * AMSR2 85-92GHz 45.0 24.31 116.82 24.24 117.00 0.20 0.57 0.60 63.4
20250813 18:04:37 AMSR2 37GHz 45.0 23.76 116.88 23.69 117.05 0.37 1.04 2.80 ***
20250813 13:06:00 Metop-C ASCAT 61.3 23.59 118.46 23.81 118.01 0.35 0.99 *** ***
20250813 12:15:00 * Metop-A ASCAT 65.0 22.97 118.78 22.89 119.01 0.26 0.73 *** ***
20250813 10:35:44 * SSMIS-16 85-92GHz 67.3 23.33 119.07 23.41 118.78 0.14 0.39 2.10 87.7
20250813 10:10:11 SSMIS-17 85-92GHz 68.1 23.35 119.25 23.46 118.84 0.18 0.51 2.00 64.9
20250812 19:49:35 * SSMIS-18 85-92GHz 86.5 22.03 122.86 22.04 122.70 0.11 0.30 0.70 100.0
20250812 17:22:19 * AMSR2 85-92GHz 84.0 21.80 123.53 21.81 123.50 0.11 0.30 1.10 100.0
20250812 17:22:19 AMSR2 37GHz 84.0 21.85 123.75 21.86 123.71 0.11 0.31 0.50 ***
20250812 13:27:00 Metop-C ASCAT 81.2 21.63 124.62 21.72 124.33 0.16 0.46 *** ***
20250812 12:36:00 Metop-A ASCAT 80.0 *** *** *** *** *** *** *** ***
20250812 12:33:27 * GMI 85-92GHz 80.0 21.48 124.75 21.42 125.02 0.11 0.30 0.40 100.0
20250812 12:33:27 GMI 37GHz 80.0 21.58 124.96 21.52 125.23 0.15 0.41 0.60 ***
20250812 07:17:32 * SSMIS-18 85-92GHz 72.2 21.42 126.17 21.48 125.87 0.10 0.27 0.60 100.0
20250812 05:12:26 * AMSR2 85-92GHz 69.3 21.10 126.81 21.11 126.73 0.14 0.39 0.90 88.7
20250812 05:12:26 AMSR2 37GHz 69.3 21.15 126.86 21.16 126.79 0.14 0.40 0.40 ***
20250812 00:36:00 Metop-C ASCAT 65.5 *** *** *** *** *** *** *** ***
20250812 00:33:00 Metop-C ASCAT 65.5 *** *** *** *** *** *** *** ***
20250811 23:13:26 GMI 85-92GHz 65.0 20.95 128.10 20.97 128.04 0.11 0.30 1.00 100.0
20250811 23:13:26 * GMI 37GHz 65.0 20.90 128.32 20.92 128.26 0.09 0.25 0.50 ***
20250811 21:28:25 SSMIS-17 85-92GHz 65.0 21.04 128.60 20.98 128.78 0.11 0.31 1.10 88.3
20250811 20:03:40 * SSMIS-18 85-92GHz 65.0 20.88 128.93 20.90 128.84 0.10 0.29 1.10 98.9
20250811 16:39:20 AMSR2 85-92GHz 62.8 20.65 129.81 20.61 129.59 0.09 0.26 0.80 100.0
20250811 16:39:20 * AMSR2 37GHz 62.8 20.50 129.86 20.46 129.65 0.09 0.24 0.30 ***
20250811 09:21:18 * SSMIS-16 85-92GHz 55.0 20.39 131.32 20.33 131.50 0.32 0.89 0.40 44.2
20250811 07:31:50 SSMIS-18 85-92GHz 55.0 *** *** *** *** *** *** 3.00 ***
20250811 04:29:11 * AMSR2 85-92GHz 55.0 20.37 132.29 20.31 132.08 0.18 0.50 0.70 65.3
20250811 04:29:11 AMSR2 37GHz 55.0 *** *** *** *** *** *** 0.60 ***
20250810 22:06:31 * SSMIS-16 85-92GHz 53.4 20.96 133.01 20.94 132.72 0.48 1.37 0.70 2.4
20250810 12:28:27 GMI 85-92GHz 50.0 21.85 135.73 21.85 135.94 0.30 0.86 1.40 4.6
20250810 12:28:27 GMI 37GHz 50.0 *** *** *** *** *** *** 1.10 ***
20250810 12:27:00 * Metop-C ASCAT 50.0 21.35 135.95 21.35 136.16 0.21 0.60 *** ***
20250810 09:34:53 SSMIS-16 85-92GHz 50.0 21.80 136.31 21.80 136.54 0.59 1.68 3.00 0.5
20250810 09:10:49 * SSMIS-17 85-92GHz 50.0 22.35 136.50 22.35 136.65 0.29 0.81 2.10 5.4
20250810 06:05:00 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 0.40 ***
20250810 03:46:22 AMSR2 85-92GHz 51.9 21.40 138.32 21.40 138.61 0.54 1.52 0.30 8.2
20250810 03:46:22 * AMSR2 37GHz 51.9 21.65 137.62 21.65 137.91 0.29 0.83 0.50 ***
20250810 00:24:00 * Metop-A ASCAT 55.2 21.50 138.07 21.50 138.29 0.15 0.43 *** ***
20250809 23:03:27 * GMI 85-92GHz 55.0 21.29 138.77 21.30 138.66 0.18 0.51 0.30 82.6
20250809 23:03:27 GMI 37GHz 55.0 21.54 138.61 21.55 138.50 0.30 0.84 0.20 ***
20250809 18:50:12 SSMIS-18 85-92GHz 55.3 *** *** *** *** *** *** 0.50 ***
20250809 16:51:14 * AMSR2 85-92GHz 54.0 21.45 140.15 21.45 140.06 0.14 0.39 0.40 100.0
20250809 16:51:14 AMSR2 37GHz 54.0 21.55 139.40 21.55 139.30 0.29 0.82 0.40 ***
20250809 11:57:00 * Metop-A ASCAT 50.0 21.60 140.95 21.60 141.02 0.13 0.36 *** ***
20250809 06:18:39 * SSMIS-18 85-92GHz 50.0 20.41 141.58 20.41 141.71 0.22 0.62 0.60 62.7
20250808 23:57:00 * Metop-C ASCAT 50.0 21.45 142.69 21.44 142.75 0.14 0.40 *** ***
20250808 19:03:51 * SSMIS-18 85-92GHz 45.4 20.46 143.47 20.54 143.33 0.24 0.68 0.10 73.0
20250808 16:08:24 * AMSR2 85-92GHz 45.0 20.54 143.79 20.63 143.64 0.11 0.32 0.20 100.0
20250808 16:08:24 AMSR2 37GHz 45.0 20.44 144.00 20.53 143.85 0.25 0.71 0.10 ***
20250808 12:18:27 * GMI 85-92GHz 45.0 20.47 144.26 20.43 144.37 0.32 0.90 0.20 61.5
20250808 12:18:27 GMI 37GHz 45.0 *** *** *** *** *** *** 0.20 ***
20250808 11:27:00 Metop-C ASCAT 44.5 *** *** *** *** *** *** *** ***
20250808 06:32:24 * SSMIS-18 85-92GHz 40.0 20.69 144.93 20.64 145.05 0.38 1.08 1.70 4.2
20250808 03:58:05 AMSR2 85-92GHz 41.7 20.45 145.05 20.32 145.20 0.26 0.74 0.70 17.3
20250808 03:58:05 * AMSR2 37GHz 41.7 20.75 145.11 20.62 145.25 0.25 0.71 0.90 ***
20250807 22:53:27 * GMI 85-92GHz 43.2 20.22 145.69 20.29 145.64 0.25 0.71 1.10 7.7
20250807 22:53:27 GMI 37GHz 43.2 19.92 145.74 19.99 145.69 0.32 0.91 0.30 ***
20250807 08:33:42 * SSMIS-16 85-92GHz 32.1 18.70 148.00 18.70 148.00 0.54 1.53 1.00 1.4
20250807 03:14:36 AMSR2 85-92GHz 27.7 18.33 148.03 18.31 148.04 0.49 1.39 0.70 2.7
20250807 03:14:36 * AMSR2 37GHz 27.7 18.53 147.82 18.51 147.83 0.27 0.75 0.90 ***

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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