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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
20250306 18:03:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** ***
20250306 17:09:00 Metop-A ASCAT 40.4 *** *** *** *** *** *** *** ***
20250306 14:52:54 * SSMIS-16 85-92GHz 41.3 -39.99 53.97 -39.93 53.86 0.38 1.07 3.00 1.8
20250306 12:23:26 GMI 85-92GHz 42.3 *** *** *** *** *** *** 3.00 ***
20250306 12:23:26 GMI 37GHz 42.3 *** *** *** *** *** *** 3.00 ***
20250306 10:36:46 * AMSR2 85-92GHz 43.1 -39.43 52.88 -39.58 53.10 0.36 1.03 2.80 3.8
20250306 10:36:46 AMSR2 37GHz 43.1 -39.38 52.82 -39.53 53.04 0.36 1.03 0.50 ***
20250306 05:42:00 Metop-C ASCAT 45.3 *** *** *** *** *** *** *** ***
20250306 04:51:00 * Metop-A ASCAT 46.3 -38.28 51.48 -38.40 51.59 0.17 0.49 *** ***
20250306 04:18:26 GMI 85-92GHz 46.9 *** *** *** *** *** *** 2.00 ***
20250306 04:18:26 GMI 37GHz 46.9 -38.02 51.22 -38.25 51.40 0.53 1.49 0.40 ***
20250306 02:30:03 SSMIS-16 85-92GHz 48.9 -37.39 51.41 -37.39 51.41 0.44 1.25 0.30 1.6
20250306 01:40:10 * SSMIS-17 85-92GHz 49.8 -37.01 51.49 -37.19 51.59 0.29 0.83 3.00 7.9
20250305 23:42:21 SSMIS-18 85-92GHz 52.0 -36.43 51.38 -36.38 51.35 0.44 1.24 2.90 1.9
20250305 18:24:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20250305 15:07:55 * SSMIS-16 85-92GHz 53.8 -34.33 50.17 -34.20 50.05 0.52 1.48 2.70 0.9
20250305 02:42:34 * SSMIS-16 85-92GHz 50.0 -31.79 48.71 -31.75 48.71 0.37 1.05 2.60 2.9
20250305 01:53:10 SSMIS-17 85-92GHz 50.0 *** *** *** *** *** *** 2.60 ***
20250304 23:55:05 * SSMIS-18 85-92GHz 50.0 -31.23 48.88 -31.17 48.88 0.28 0.78 2.80 8.1
20250304 21:51:15 AMSR2 85-92GHz 50.0 -31.09 49.00 -30.90 49.00 0.31 0.87 2.00 6.8
20250304 21:51:15 AMSR2 37GHz 50.0 -31.24 49.06 -31.05 49.06 0.38 1.08 1.10 ***
20250304 18:45:00 Metop-C ASCAT 50.0 *** *** *** *** *** *** *** ***
20250304 17:54:00 * Metop-A ASCAT 50.0 -30.78 49.00 -30.72 49.00 0.13 0.35 *** ***
20250304 15:22:54 SSMIS-16 85-92GHz 48.9 -30.64 49.51 -30.49 49.46 0.32 0.90 0.20 32.7
20250304 13:53:27 * GMI 85-92GHz 48.3 -30.18 49.59 -30.29 49.63 0.25 0.71 0.20 55.9
20250304 13:53:27 GMI 37GHz 48.3 -30.23 49.71 -30.34 49.75 0.26 0.75 0.10 ***
20250304 12:35:19 SSMIS-18 85-92GHz 47.7 -29.97 49.09 -29.79 49.01 0.48 1.35 0.90 4.4
20250304 10:51:33 * AMSR2 85-92GHz 47.0 -29.80 49.01 -29.90 49.07 0.25 0.72 0.60 56.1
20250304 10:51:33 AMSR2 37GHz 47.0 -29.80 48.84 -29.90 48.89 0.35 1.00 0.60 ***
20250304 04:03:26 GMI 85-92GHz 45.0 -28.68 48.31 -28.80 48.35 0.26 0.75 0.70 45.7
20250304 04:03:26 * GMI 37GHz 45.0 -28.83 48.25 -28.95 48.29 0.12 0.33 0.60 ***
20250304 02:55:23 SSMIS-16 85-92GHz 45.0 -28.70 48.22 -28.67 48.22 0.16 0.45 0.70 79.5
20250304 02:06:21 SSMIS-17 85-92GHz 45.0 -28.69 48.26 -28.72 48.27 0.14 0.40 0.90 89.3
20250304 00:08:12 * SSMIS-18 85-92GHz 45.0 -28.42 48.11 -28.38 48.10 0.16 0.46 1.00 73.0
20250303 19:06:00 * Metop-C ASCAT 45.0 -28.06 47.65 -28.14 47.69 0.13 0.37 *** ***
20250303 15:37:00 SSMIS-16 85-92GHz 47.0 -28.23 47.72 -28.12 47.60 0.25 0.72 0.80 40.9
20250303 14:48:06 SSMIS-17 85-92GHz 47.7 -28.00 47.80 -27.97 47.77 0.24 0.69 0.90 30.4
20250303 14:33:26 * GMI 85-92GHz 47.9 -27.98 47.55 -27.97 47.55 0.22 0.61 0.90 27.2
20250303 14:33:26 GMI 37GHz 47.9 -27.93 47.61 -27.92 47.60 0.28 0.79 0.70 ***
20250303 12:49:50 * SSMIS-18 85-92GHz 49.3 -27.96 47.41 -27.84 47.24 0.32 0.91 1.40 4.4
20250303 06:42:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20250303 04:43:26 * GMI 85-92GHz 55.5 -27.88 46.69 -27.89 46.74 0.29 0.81 0.20 49.4
20250303 04:43:26 GMI 37GHz 55.5 -27.48 46.92 -27.49 46.96 0.31 0.87 0.30 ***
20250303 03:08:44 SSMIS-16 85-92GHz 56.2 -27.61 47.30 -27.60 47.27 0.34 0.97 0.40 16.0
20250303 02:20:09 SSMIS-17 85-92GHz 56.5 -27.50 47.27 -27.50 47.28 0.35 1.00 0.40 22.8
20250303 00:21:35 * SSMIS-18 85-92GHz 57.4 -27.44 47.18 -27.43 47.14 0.22 0.61 0.30 76.2
20250302 22:02:36 * AMSR2 85-92GHz 58.3 -27.43 46.90 -27.43 46.96 0.26 0.74 0.30 71.7
20250302 22:02:36 AMSR2 37GHz 58.3 -26.93 46.29 -26.93 46.34 0.39 1.11 1.00 ***
20250302 15:51:01 SSMIS-16 85-92GHz 60.9 -26.82 46.91 -26.81 46.88 0.22 0.62 1.70 10.7
20250302 15:18:27 GMI 85-92GHz 61.1 -26.62 46.79 -26.61 46.76 0.28 0.79 1.80 8.4
20250302 15:18:27 * GMI 37GHz 61.1 -27.07 46.34 -27.06 46.31 0.17 0.47 0.60 ***
20250302 15:02:29 SSMIS-17 85-92GHz 61.2 -26.51 46.95 -26.51 46.93 0.33 0.95 1.80 3.0
20250302 13:04:02 SSMIS-18 85-92GHz 62.1 -27.15 46.56 -27.16 46.59 0.22 0.62 0.80 51.7
20250302 11:04:36 AMSR2 85-92GHz 62.9 -26.93 46.28 -26.94 46.29 0.23 0.65 0.50 66.8
20250302 11:04:36 * AMSR2 37GHz 62.9 -27.03 46.39 -27.04 46.40 0.21 0.59 0.30 ***
20250302 03:22:21 SSMIS-16 85-92GHz 63.9 -26.84 46.00 -26.84 45.99 0.29 0.82 0.80 34.1
20250302 02:34:09 * SSMIS-17 85-92GHz 63.6 -26.69 46.10 -26.69 46.10 0.22 0.63 1.00 40.0
20250302 00:35:11 * SSMIS-18 85-92GHz 62.7 -26.87 45.97 -26.86 45.95 0.35 0.99 0.70 18.9
20250301 18:57:00 * Metop-A ASCAT 60.0 -27.01 45.66 -26.99 45.63 0.17 0.48 *** ***
20250301 16:04:47 SSMIS-16 85-92GHz 61.1 -26.91 45.75 -26.93 45.81 0.25 0.71 0.90 44.3
20250301 15:16:45 SSMIS-17 85-92GHz 61.5 -26.75 45.76 -26.73 45.72 0.26 0.75 1.00 29.2
20250301 13:17:45 * SSMIS-18 85-92GHz 62.6 -26.96 45.47 -26.98 45.54 0.16 0.47 1.10 85.7
20250301 10:21:42 AMSR2 85-92GHz 63.2 -26.77 45.39 -26.79 45.46 0.22 0.61 1.10 65.3
20250301 10:21:42 * AMSR2 37GHz 63.2 -26.72 45.33 -26.74 45.40 0.15 0.43 0.80 ***
20250301 05:45:00 Metop-C ASCAT 64.9 -26.75 45.08 -26.74 45.08 0.18 0.52 *** ***
20250301 03:35:54 * SSMIS-16 85-92GHz 64.0 -26.58 44.93 -26.57 44.91 0.13 0.38 1.10 92.0
20250301 02:47:57 SSMIS-17 85-92GHz 63.7 -26.47 45.03 -26.47 45.02 0.23 0.65 1.10 53.7
20250301 00:49:06 SSMIS-18 85-92GHz 62.8 -26.51 44.95 -26.50 44.93 0.22 0.63 1.30 57.6
20250228 22:14:32 AMSR2 85-92GHz 61.8 -26.49 44.75 -26.50 44.76 0.26 0.73 1.00 38.9
20250228 22:14:32 * AMSR2 37GHz 61.8 -26.54 44.75 -26.55 44.76 0.15 0.42 1.00 ***
20250228 18:30:00 * Metop-C ASCAT 60.2 -26.81 44.73 -26.79 44.70 0.15 0.42 *** ***
20250228 15:30:54 SSMIS-17 85-92GHz 60.0 -26.70 44.67 -26.65 44.59 0.17 0.49 1.30 75.9
20250228 13:31:59 * SSMIS-18 85-92GHz 60.0 -26.59 44.38 -26.65 44.48 0.14 0.41 1.60 87.6
20250228 11:17:13 AMSR2 85-92GHz 60.0 -26.48 44.31 -26.50 44.34 0.17 0.49 1.30 75.2
20250228 11:17:13 * AMSR2 37GHz 60.0 -26.28 44.31 -26.30 44.34 0.12 0.33 1.10 ***
20250228 06:06:00 Metop-C ASCAT 60.0 *** *** *** *** *** *** *** ***
20250228 03:01:35 * SSMIS-17 85-92GHz 61.2 -25.50 43.51 -25.46 43.44 0.21 0.60 1.60 64.9
20250228 01:02:44 * SSMIS-18 85-92GHz 62.1 -25.47 43.38 -25.57 43.60 0.14 0.39 1.80 91.2
20250227 17:57:00 Metop-A ASCAT 65.0 *** *** *** *** *** *** *** ***
20250227 15:48:27 GMI 85-92GHz 65.9 *** *** *** *** *** *** 3.00 ***
20250227 15:48:27 GMI 37GHz 65.9 *** *** *** *** *** *** 3.00 ***
20250227 15:45:22 * SSMIS-17 85-92GHz 65.9 -25.53 42.44 -25.49 42.37 0.13 0.37 1.80 98.4
20250227 13:46:03 * SSMIS-18 85-92GHz 66.8 -25.42 42.05 -25.44 42.09 0.22 0.62 2.00 50.8
20250227 05:58:27 GMI 85-92GHz 70.0 -24.70 41.28 -24.68 41.23 0.24 0.67 2.20 6.8
20250227 05:58:27 * GMI 37GHz 70.0 -24.75 40.89 -24.73 40.85 0.15 0.43 1.70 ***
20250227 05:33:00 Metop-A ASCAT 69.6 -24.48 41.23 -24.48 41.22 0.18 0.50 *** ***
20250227 03:15:40 SSMIS-17 85-92GHz 67.7 -24.49 40.81 -24.43 40.70 0.22 0.62 2.10 25.5
20250227 01:16:21 * SSMIS-18 85-92GHz 66.1 -24.38 41.00 -24.48 41.19 0.20 0.58 1.80 41.5
20250226 22:26:31 AMSR2 85-92GHz 63.7 -24.19 40.45 -24.28 40.62 0.31 0.87 1.90 13.1
20250226 22:26:31 * AMSR2 37GHz 63.7 -24.34 40.28 -24.43 40.46 0.22 0.63 1.20 ***
20250226 18:18:00 * Metop-A ASCAT 60.0 -24.01 39.89 -23.96 39.80 0.16 0.46 *** ***
20250226 16:33:26 GMI 85-92GHz 58.8 -23.99 39.92 -24.04 40.02 0.36 1.00 1.20 13.3
20250226 16:33:26 GMI 37GHz 58.8 -23.99 39.98 -24.04 40.07 0.44 1.23 1.30 ***
20250226 14:00:37 SSMIS-18 85-92GHz 56.7 -23.52 39.30 -23.55 39.35 0.52 1.47 1.10 3.0
20250226 11:30:13 AMSR2 85-92GHz 54.6 -23.50 39.04 -23.50 39.04 0.54 1.54 1.60 3.0
20250226 11:30:13 AMSR2 37GHz 54.6 -23.85 39.26 -23.85 39.26 0.50 1.41 0.70 ***
20250226 06:38:26 GMI 85-92GHz 50.0 -23.64 38.53 -23.58 38.45 0.50 1.42 3.00 3.3
20250226 06:38:26 GMI 37GHz 50.0 -23.59 38.53 -23.53 38.45 0.25 0.72 1.60 ***
20250226 05:51:00 * Metop-A ASCAT 49.8 -23.44 38.68 -23.42 38.66 0.12 0.33 *** ***
20250226 03:29:28 SSMIS-17 85-92GHz 46.9 -23.29 38.61 -23.24 38.55 0.49 1.39 3.00 3.6
20250226 01:29:57 SSMIS-18 85-92GHz 44.4 -23.22 38.74 -23.28 38.80 0.55 1.54 0.90 1.4
20250225 19:36:00 * Metop-C ASCAT 37.0 -22.73 38.04 -22.79 38.09 0.13 0.38 *** ***
20250225 19:33:00 Metop-C ASCAT 36.9 *** *** *** *** *** *** *** ***
20250225 16:14:36 SSMIS-17 85-92GHz 35.0 -23.00 38.00 -23.07 38.07 0.47 1.32 3.00 3.7

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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