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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
20250423 18:54:24 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250423 16:36:01 AMSR2 85-92GHz 30.6 *** *** *** *** *** *** 2.20 ***
20250423 16:36:01 AMSR2 37GHz 30.6 -9.31 131.29 -9.27 131.24 0.58 1.63 1.00 ***
20250423 13:15:00 * Metop-C ASCAT 32.0 -8.86 130.78 -8.81 130.70 0.45 1.28 *** ***
20250423 09:33:29 * SSMIS-17 85-92GHz 33.5 -9.51 131.29 -9.55 131.37 0.46 1.29 2.80 0.5
20250423 07:47:01 SSMIS-18 85-92GHz 34.3 *** *** *** *** *** *** 2.70 ***
20250422 23:48:00 Metop-A ASCAT 35.0 -9.46 131.28 -9.47 131.31 1.71 4.83 *** ***
20250422 20:55:00 * SSMIS-17 85-92GHz 35.0 -9.50 133.18 -9.51 133.22 0.40 1.13 3.00 1.1
20250422 19:08:17 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 2.80 ***
20250422 18:53:27 GMI 85-92GHz 35.0 *** *** *** *** *** *** 2.20 ***
20250422 18:53:27 * GMI 37GHz 35.0 -8.97 132.67 -9.02 132.81 0.40 1.12 3.00 ***
20250422 12:42:00 * Metop-A ASCAT 32.8 -9.70 132.88 -9.75 133.01 0.30 0.84 *** ***
20250422 09:47:16 * SSMIS-17 85-92GHz 31.6 -10.22 133.15 -10.28 133.29 0.23 0.65 0.90 14.2
20250422 09:18:44 SSMIS-16 85-92GHz 31.4 -10.24 133.25 -10.28 133.34 0.28 0.79 0.30 9.7
20250422 05:04:31 * AMSR2 85-92GHz 30.0 -10.50 133.62 -10.48 133.56 0.23 0.64 0.50 33.4
20250422 05:04:31 AMSR2 37GHz 30.0 -10.60 133.57 -10.58 133.51 0.32 0.90 0.50 ***
20250422 01:00:00 * Metop-C ASCAT 30.0 -10.22 133.91 -10.33 134.16 0.23 0.65 *** ***
20250421 21:09:18 * SSMIS-17 85-92GHz 30.0 -11.54 135.38 -11.58 135.48 0.32 0.92 3.00 3.4
20250421 16:48:45 AMSR2 85-92GHz 30.0 -10.72 135.86 -10.64 135.74 0.63 1.78 3.00 0.0
20250421 16:48:45 AMSR2 37GHz 30.0 *** *** *** *** *** *** 0.10 ***
20250421 12:12:00 * Metop-C ASCAT 30.0 -11.39 136.62 -11.45 136.74 0.18 0.49 *** ***
20250421 09:31:36 SSMIS-16 85-92GHz 32.1 -11.87 137.02 -11.96 137.19 0.41 1.16 1.70 1.1
20250421 08:03:26 * GMI 85-92GHz 33.3 -11.96 137.11 -11.92 137.04 0.29 0.82 1.60 8.2
20250421 08:03:26 GMI 37GHz 33.3 -12.11 136.86 -12.07 136.78 0.50 1.42 1.10 ***
20250421 06:32:46 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 2.20 ***
20250421 04:21:00 AMSR2 85-92GHz 33.6 -12.61 137.73 -12.57 137.56 0.39 1.11 0.10 4.1
20250421 04:21:00 * AMSR2 37GHz 33.6 -12.41 137.89 -12.37 137.71 0.28 0.79 0.30 ***
20250420 23:39:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20250420 20:54:54 * SSMIS-16 85-92GHz 30.0 -12.60 139.16 -12.63 139.24 0.23 0.65 2.50 3.7
20250420 16:05:48 AMSR2 85-92GHz 30.0 -12.40 139.73 -12.40 139.56 0.35 1.00 1.90 6.5
20250420 16:05:48 * AMSR2 37GHz 30.0 -12.90 139.83 -12.90 139.66 0.19 0.53 2.40 ***
20250420 12:36:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20250420 12:33:00 * Metop-C ASCAT 30.0 -12.44 140.23 -12.44 140.36 0.18 0.51 *** ***
20250420 11:42:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20250420 08:32:28 * SSMIS-17 85-92GHz 30.0 -13.15 140.91 -13.15 140.91 0.15 0.43 2.40 5.5
20250420 06:45:41 * SSMIS-18 85-92GHz 30.0 -13.10 141.15 -13.10 141.23 0.44 1.25 1.00 4.3
20250419 21:08:22 * SSMIS-16 85-92GHz 30.0 -12.68 141.21 -12.69 141.19 0.34 0.96 0.60 68.2
20250419 19:28:27 GMI 85-92GHz 30.0 -13.10 141.28 -13.08 141.31 0.40 1.14 0.70 10.9
20250419 19:28:27 * GMI 37GHz 30.0 -12.90 141.13 -12.88 141.15 0.33 0.94 1.30 ***
20250419 18:09:58 SSMIS-18 85-92GHz 30.0 -12.35 140.95 -12.37 140.95 0.41 1.17 3.00 0.7
20250419 12:03:00 * Metop-A ASCAT 30.0 -12.50 141.25 -12.50 141.26 0.15 0.41 *** ***
20250419 08:47:35 SSMIS-17 85-92GHz 30.0 -12.80 140.85 -12.80 140.85 0.41 1.16 2.30 2.6
20250419 07:53:27 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250419 07:53:27 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250419 07:00:25 * SSMIS-18 85-92GHz 30.0 -13.59 141.27 -13.59 141.23 0.21 0.61 2.60 4.1
20250419 04:32:54 * AMSR2 85-92GHz 30.0 -13.09 141.21 -13.11 141.14 0.21 0.60 1.50 5.8
20250419 04:32:54 AMSR2 37GHz 30.0 -12.99 141.42 -13.01 141.34 0.56 1.57 0.40 ***
20250419 00:21:00 * Metop-C ASCAT 30.0 -12.07 141.29 -12.01 141.29 0.18 0.50 *** ***
20250418 21:22:03 * SSMIS-16 85-92GHz 30.0 -12.95 140.64 -12.87 140.55 0.23 0.64 3.00 0.0
20250418 20:11:08 SSMIS-17 85-92GHz 30.0 -12.68 140.56 -12.71 140.60 0.33 0.94 3.00 0.0
20250418 18:23:25 SSMIS-18 85-92GHz 30.0 -12.26 140.49 -12.21 140.40 0.22 0.63 3.00 0.0
20250418 16:17:59 AMSR2 85-92GHz 31.4 -12.28 140.87 -12.34 140.98 0.19 0.54 0.20 91.9
20250418 16:17:59 * AMSR2 37GHz 31.4 -11.88 140.87 -11.94 140.98 0.15 0.44 0.50 ***
20250418 09:02:06 SSMIS-17 85-92GHz 35.0 -11.66 140.19 -11.62 140.11 0.33 0.92 3.00 3.4
20250418 08:38:26 GMI 85-92GHz 35.0 -11.68 140.13 -11.67 140.11 0.27 0.76 2.80 5.2
20250418 08:38:26 * GMI 37GHz 35.0 -11.53 140.13 -11.52 140.11 0.13 0.36 1.00 ***
20250418 08:33:26 GMI 85-92GHz 35.0 -11.68 140.12 -11.67 140.11 0.28 0.79 2.20 4.5
20250418 08:33:26 GMI 37GHz 35.0 -11.53 140.12 -11.52 140.11 0.13 0.36 0.90 ***
20250418 07:14:47 * SSMIS-18 85-92GHz 35.0 -12.19 138.63 -12.27 138.81 0.23 0.66 3.00 0.0

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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