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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
20250419 00:24:00 Metop-C ASCAT 20.0 *** *** *** *** *** *** *** ***
20250418 21:53:50 SSMIS-17 85-92GHz 22.3 *** *** *** *** *** *** 2.80 ***
20250418 21:23:42 SSMIS-16 85-92GHz 22.9 *** *** *** *** *** *** 3.00 ***
20250418 10:12:10 SSMIS-16 85-92GHz 33.0 *** *** *** *** *** *** 0.50 ***
20250418 05:27:31 * AMSR2 85-92GHz 41.4 -15.80 123.79 -15.80 123.79 0.56 1.58 3.00 1.6
20250418 05:27:31 AMSR2 37GHz 41.4 -16.65 124.36 -16.65 124.36 0.60 1.71 2.50 ***
20250418 00:45:00 Metop-C ASCAT 53.1 -15.65 122.26 -15.65 122.07 0.74 2.10 *** ***
20250417 22:07:59 SSMIS-17 85-92GHz 59.7 -15.50 123.09 -15.50 123.42 0.37 1.04 0.30 30.5
20250417 21:37:34 SSMIS-16 85-92GHz 60.9 -15.65 123.14 -15.65 122.78 0.39 1.11 3.00 0.0
20250417 20:48:27 * GMI 85-92GHz 63.0 -15.55 123.05 -15.55 122.94 0.18 0.51 0.20 76.5
20250417 20:48:27 GMI 37GHz 63.0 *** *** *** *** *** *** 2.10 ***
20250417 17:14:50 * AMSR2 85-92GHz 71.3 -15.58 122.80 -15.60 122.86 0.19 0.54 0.10 43.2
20250417 17:14:50 AMSR2 37GHz 71.3 -15.88 122.60 -15.90 122.66 0.22 0.63 2.70 ***
20250417 12:45:00 Metop-A ASCAT 78.8 -15.45 120.44 -15.37 120.22 0.26 0.73 *** ***
20250417 10:26:07 * SSMIS-16 85-92GHz 86.5 -15.64 120.54 -15.68 120.73 0.15 0.41 0.30 53.0
20250417 01:06:00 * Metop-C ASCAT 117.3 -14.89 118.69 -14.94 118.77 0.14 0.39 *** ***
20250416 22:21:56 * SSMIS-17 85-92GHz 121.4 -14.91 118.87 -14.96 118.92 0.10 0.28 0.20 100.0
20250416 21:51:00 SSMIS-16 85-92GHz 121.8 -14.84 119.11 -14.77 119.05 0.09 0.26 0.20 100.0
20250416 21:28:27 * GMI 85-92GHz 122.1 -14.82 118.99 -14.77 118.95 0.09 0.27 0.20 100.0
20250416 21:28:27 GMI 37GHz 122.1 -15.02 118.99 -14.97 118.95 0.13 0.38 0.10 ***
20250416 13:57:00 Metop-C ASCAT 135.1 -13.99 118.59 -14.02 118.58 0.28 0.79 *** ***
20250416 13:06:00 * Metop-A ASCAT 137.3 -14.45 118.87 -14.52 118.84 0.13 0.36 *** ***
20250416 10:39:59 * SSMIS-16 85-92GHz 135.6 -14.35 119.03 -14.39 119.00 0.11 0.30 0.10 100.0
20250416 07:42:23 * SSMIS-18 85-92GHz 125.7 -14.20 119.14 -14.22 119.09 0.09 0.25 0.20 100.0
20250416 05:40:38 * AMSR2 85-92GHz 117.8 -14.15 119.27 -14.15 119.28 0.10 0.28 0.30 100.0
20250416 05:40:38 AMSR2 37GHz 117.8 -14.05 119.27 -14.05 119.28 0.11 0.32 0.10 ***
20250416 00:33:00 Metop-A ASCAT 83.7 *** *** *** *** *** *** *** ***
20250415 22:13:26 GMI 85-92GHz 74.1 *** *** *** *** *** *** 3.00 ***
20250415 22:13:26 GMI 37GHz 74.1 *** *** *** *** *** *** 3.00 ***
20250415 22:04:25 * SSMIS-16 85-92GHz 73.6 -13.87 119.93 -13.93 119.79 0.11 0.30 0.10 65.3
20250415 17:26:27 * AMSR2 85-92GHz 59.5 -13.70 120.25 -13.70 120.24 0.14 0.41 0.30 92.0
20250415 17:26:27 AMSR2 37GHz 59.5 -13.80 120.45 -13.80 120.45 0.16 0.45 0.40 ***
20250415 13:27:00 Metop-A ASCAT 56.2 -13.45 120.61 -13.45 120.53 0.20 0.57 *** ***
20250415 10:53:55 * SSMIS-16 85-92GHz 53.2 -14.31 120.78 -14.30 120.71 0.12 0.35 0.40 90.7
20250415 10:43:26 GMI 85-92GHz 52.9 -14.31 120.86 -14.30 120.76 0.14 0.39 0.30 98.6
20250415 10:43:26 GMI 37GHz 52.9 -13.91 121.01 -13.90 120.91 0.14 0.40 2.60 ***
20250415 09:44:26 SSMIS-17 85-92GHz 51.2 -14.23 121.31 -14.26 121.49 0.16 0.44 0.30 85.4
20250415 07:56:26 * SSMIS-18 85-92GHz 48.2 -14.38 121.31 -14.36 121.23 0.15 0.41 0.10 72.9
20250415 01:45:00 * Metop-C ASCAT 45.0 -13.45 121.87 -13.48 121.82 0.14 0.41 *** ***
20250414 22:17:43 SSMIS-16 85-92GHz 45.0 -13.51 122.00 -13.56 121.89 0.30 0.85 2.90 6.4
20250414 19:20:28 * SSMIS-18 85-92GHz 45.0 -14.25 122.63 -14.29 122.54 0.13 0.36 2.20 43.9
20250414 12:57:00 * Metop-C ASCAT 40.0 -13.15 122.72 -13.18 122.78 0.20 0.56 *** ***
20250414 09:58:42 SSMIS-17 85-92GHz 38.3 -14.44 123.36 -14.41 123.42 0.28 0.78 0.70 7.3
20250414 08:10:18 * SSMIS-18 85-92GHz 36.8 -14.35 123.79 -14.36 123.78 0.13 0.38 0.20 52.0
20250414 05:52:53 AMSR2 85-92GHz 35.1 -14.05 123.82 -14.03 123.81 0.28 0.78 0.10 69.6
20250414 05:52:53 AMSR2 37GHz 35.1 -14.10 123.72 -14.08 123.71 0.37 1.06 1.50 ***
20250414 01:15:00 * Metop-A ASCAT 39.0 -13.08 122.88 -13.17 123.03 0.23 0.65 *** ***
20250413 22:31:27 SSMIS-16 85-92GHz 40.0 *** *** *** *** *** *** 1.80 ***
20250413 22:03:26 GMI 85-92GHz 40.0 *** *** *** *** *** *** 1.70 ***
20250413 22:03:26 GMI 37GHz 40.0 -13.42 123.68 -13.48 123.59 0.25 0.69 0.20 ***
20250413 21:22:56 * SSMIS-17 85-92GHz 40.0 -13.40 123.90 -13.37 124.01 0.19 0.54 2.30 2.3
20250413 19:33:58 * SSMIS-18 85-92GHz 40.0 -13.50 123.86 -13.53 123.74 0.18 0.50 2.30 7.2
20250413 17:38:39 AMSR2 85-92GHz 39.7 -13.44 123.81 -13.44 123.83 0.41 1.16 1.60 4.0
20250413 17:38:39 AMSR2 37GHz 39.7 -13.49 123.86 -13.49 123.88 0.30 0.84 0.20 ***
20250413 12:30:00 * Metop-A ASCAT 35.0 -12.81 123.74 -12.79 123.86 0.24 0.67 *** ***
20250413 12:27:00 Metop-A ASCAT 35.0 -12.81 123.74 -12.78 123.86 0.25 0.69 *** ***
20250413 10:13:03 SSMIS-17 85-92GHz 35.0 -13.07 124.28 -13.14 124.15 0.56 1.58 1.50 1.3
20250413 05:10:09 AMSR2 85-92GHz 35.0 -12.73 124.84 -12.76 124.78 0.48 1.35 1.10 0.6
20250413 05:10:09 * AMSR2 37GHz 35.0 -12.68 124.68 -12.71 124.62 0.31 0.89 2.10 ***
20250413 00:48:00 * Metop-C ASCAT 35.0 -11.85 125.37 -11.77 125.51 0.23 0.65 *** ***
20250412 21:36:25 * SSMIS-17 85-92GHz 35.0 -13.06 126.65 -13.03 126.70 0.29 0.83 2.00 3.2
20250412 19:47:42 * SSMIS-18 85-92GHz 35.0 -12.96 126.68 -12.98 126.65 0.37 1.03 2.50 3.3
20250412 16:55:16 AMSR2 85-92GHz 35.0 -11.94 126.22 -11.97 126.19 0.58 1.65 0.30 0.2
20250412 16:55:16 AMSR2 37GHz 35.0 *** *** *** *** *** *** 1.80 ***
20250412 13:39:00 * Metop-C ASCAT 35.0 -11.40 126.56 -11.45 126.51 0.21 0.58 *** ***
20250412 11:13:27 * GMI 85-92GHz 35.0 -11.97 126.28 -11.98 126.27 0.35 0.98 1.60 4.3
20250412 11:13:27 GMI 37GHz 35.0 *** *** *** *** *** *** 0.80 ***
20250412 09:54:24 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20250412 00:15:00 * Metop-A ASCAT 40.0 -11.12 127.37 -11.07 127.46 0.13 0.37 *** ***
20250411 21:50:21 * SSMIS-17 85-92GHz 38.2 -11.69 127.21 -11.56 127.35 0.13 0.36 1.10 -7.8
20250411 21:16:46 SSMIS-16 85-92GHz 37.7 *** *** *** *** *** *** 3.00 ***

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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