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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
20250709 17:33:59 AMSR2 85-92GHz 25.2 *** *** *** *** *** *** 2.70 ***
20250709 17:33:59 * AMSR2 37GHz 25.2 25.20 118.04 25.21 118.04 0.39 1.11 2.00 ***
20250709 13:30:00 Metop-C ASCAT 26.9 *** *** *** *** *** *** *** ***
20250709 12:39:00 Metop-A ASCAT 27.2 *** *** *** *** *** *** *** ***
20250709 10:11:47 SSMIS-16 85-92GHz 28.3 26.87 118.23 26.74 118.04 0.48 1.36 2.50 1.3
20250709 10:02:45 SSMIS-17 85-92GHz 28.3 26.83 118.20 26.69 117.99 0.57 1.60 2.40 0.5
20250709 08:53:27 GMI 85-92GHz 28.8 27.39 118.31 27.43 118.36 0.44 1.25 3.00 2.9
20250709 08:53:27 * GMI 37GHz 28.8 27.24 118.42 27.28 118.48 0.38 1.06 0.60 ***
20250709 05:26:44 * AMSR2 85-92GHz 30.3 27.05 118.70 27.04 118.69 0.51 1.43 1.60 1.0
20250709 05:26:44 AMSR2 37GHz 30.3 *** *** *** *** *** *** 0.20 ***
20250709 02:15:00 Metop-C ASCAT 32.1 26.21 120.72 26.19 120.68 3.36 9.49 *** ***
20250708 23:03:27 * GMI 85-92GHz 33.9 27.80 119.15 27.77 119.08 0.56 1.57 2.60 1.0
20250708 23:03:27 GMI 37GHz 33.9 *** *** *** *** *** *** 0.60 ***
20250708 13:00:00 Metop-A ASCAT 35.0 27.08 121.46 27.08 121.61 1.55 4.38 *** ***
20250708 07:05:00 * SSMIS-18 85-92GHz 35.0 28.50 121.88 28.50 121.68 0.27 0.75 2.70 21.4
20250708 04:44:10 AMSR2 85-92GHz 36.1 28.07 122.21 28.05 122.15 0.40 1.13 0.90 13.6
20250708 04:44:10 * AMSR2 37GHz 36.1 27.97 122.21 27.95 122.15 0.18 0.52 1.00 ***
20250707 19:47:26 SSMIS-18 85-92GHz 40.0 28.33 122.53 28.37 122.54 0.38 1.08 1.50 9.1
20250707 17:45:31 AMSR2 85-92GHz 40.2 28.24 122.82 28.21 122.81 0.43 1.20 1.40 5.8
20250707 17:45:31 * AMSR2 37GHz 40.2 27.79 122.76 27.76 122.75 0.24 0.68 0.90 ***
20250707 12:33:00 * Metop-C ASCAT 45.0 27.13 122.34 27.06 122.28 0.16 0.46 *** ***
20250707 10:39:11 SSMIS-16 85-92GHz 43.9 *** *** *** *** *** *** 3.00 ***
20250707 07:18:45 SSMIS-18 85-92GHz 41.1 *** *** *** *** *** *** 3.00 ***
20250707 05:38:56 AMSR2 85-92GHz 40.3 *** *** *** *** *** *** 3.00 ***
20250707 05:38:56 * AMSR2 37GHz 40.3 26.50 121.32 26.48 121.32 0.34 0.96 2.10 ***
20250706 20:02:32 SSMIS-18 85-92GHz 61.5 *** *** *** *** *** *** 2.80 ***
20250706 12:54:00 * Metop-C ASCAT 87.0 24.42 120.82 24.23 120.62 0.30 0.85 *** ***
20250706 12:51:00 Metop-C ASCAT 87.2 *** *** *** *** *** *** *** ***
20250706 07:31:59 * SSMIS-18 85-92GHz 82.6 22.18 119.03 22.31 119.16 0.14 0.41 0.20 78.0
20250706 04:54:57 AMSR2 85-92GHz 78.2 21.93 118.74 21.99 118.80 0.11 0.30 0.20 100.0
20250706 04:54:57 * AMSR2 37GHz 78.2 21.93 118.80 21.99 118.85 0.10 0.28 0.20 ***
20250706 01:42:00 Metop-C ASCAT 72.8 *** *** *** *** *** *** *** ***
20250706 00:51:00 Metop-A ASCAT 71.4 21.43 118.29 21.30 118.22 0.23 0.64 *** ***
20250705 23:33:26 GMI 85-92GHz 69.6 21.45 118.22 21.45 118.22 0.13 0.36 0.60 88.5
20250705 23:33:26 * GMI 37GHz 69.6 21.60 118.22 21.60 118.22 0.11 0.30 0.30 ***
20250705 20:17:03 SSMIS-18 85-92GHz 66.9 21.56 118.10 21.58 118.11 0.17 0.48 0.60 78.8
20250705 17:59:43 * AMSR2 85-92GHz 65.0 20.95 117.99 20.92 117.98 0.12 0.34 0.20 100.0
20250705 17:59:43 AMSR2 37GHz 65.0 21.00 117.72 20.97 117.71 0.16 0.46 0.40 ***
20250705 13:12:00 * Metop-C ASCAT 61.0 20.71 117.43 20.77 117.45 0.16 0.44 *** ***
20250705 10:08:26 GMI 85-92GHz 58.5 20.54 117.97 20.61 117.99 0.31 0.87 0.30 75.0
20250705 10:08:26 * GMI 37GHz 58.5 20.69 117.97 20.76 117.99 0.12 0.33 0.20 ***
20250705 07:45:08 SSMIS-18 85-92GHz 56.5 20.33 117.72 20.37 117.73 0.16 0.46 0.50 99.5
20250705 05:49:44 * AMSR2 85-92GHz 54.7 20.29 118.11 20.27 118.09 0.13 0.36 0.90 97.6
20250705 05:49:44 AMSR2 37GHz 54.7 20.44 117.95 20.42 117.93 0.18 0.52 0.20 ***
20250705 02:00:00 Metop-C ASCAT 48.3 *** *** *** *** *** *** *** ***
20250705 01:12:00 * Metop-A ASCAT 47.0 20.39 117.61 20.45 117.71 0.13 0.37 *** ***
20250705 00:13:26 GMI 85-92GHz 45.0 20.16 118.25 20.14 118.23 0.26 0.74 0.30 72.1
20250705 00:13:26 GMI 37GHz 45.0 20.11 117.71 20.09 117.69 0.45 1.27 0.30 ***
20250704 20:31:27 SSMIS-18 85-92GHz 42.1 20.47 116.96 20.47 116.96 0.57 1.62 2.00 0.8
20250704 13:33:00 Metop-C ASCAT 36.3 *** *** *** *** *** *** *** ***
20250704 12:42:00 * Metop-A ASCAT 35.0 20.18 117.66 20.17 117.73 0.14 0.39 *** ***
20250704 10:48:27 GMI 85-92GHz 34.0 20.34 117.66 20.40 117.64 0.42 1.18 0.60 2.8
20250704 10:48:27 * GMI 37GHz 34.0 20.39 117.77 20.45 117.74 0.36 1.01 0.80 ***
20250704 07:58:45 SSMIS-18 85-92GHz 31.6 *** *** *** *** *** *** 0.70 ***
20250704 05:06:38 AMSR2 85-92GHz 29.3 20.15 118.41 20.15 118.38 0.47 1.32 2.10 3.1
20250704 05:06:38 * AMSR2 37GHz 29.3 20.15 118.03 20.15 118.01 0.31 0.87 1.10 ***
20250704 01:33:00 Metop-A ASCAT 26.3 *** *** *** *** *** *** *** ***
20250704 01:30:00 Metop-A ASCAT 26.2 *** *** *** *** *** *** *** ***

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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