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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
20250302 15:00:03 * SSMIS-17 85-92GHz 45.0 -33.85 61.57 -33.79 61.41 0.29 0.83 2.50 2.5
20250302 14:07:29 SSMIS-16 85-92GHz 45.0 -33.95 61.66 -33.99 61.78 0.32 0.90 1.60 1.6
20250302 13:43:27 GMI 85-92GHz 45.0 -33.91 61.29 -33.99 61.53 0.35 0.98 2.70 2.1
20250302 13:43:27 GMI 37GHz 45.0 *** *** *** *** *** *** 1.40 ***
20250302 09:24:11 AMSR2 85-92GHz 45.0 -33.64 60.38 -33.55 60.11 0.38 1.07 0.90 2.5
20250302 09:24:11 * AMSR2 37GHz 45.0 -34.14 60.69 -34.05 60.41 0.28 0.79 2.10 ***
20250302 01:42:37 * SSMIS-16 85-92GHz 46.8 -33.35 59.02 -33.50 59.30 0.25 0.71 3.00 0.0
20250301 21:20:27 * AMSR2 85-92GHz 48.6 -32.33 56.99 -32.13 56.78 0.26 0.74 0.10 59.9
20250301 21:20:27 AMSR2 37GHz 48.6 -32.08 56.64 -31.88 56.43 0.27 0.76 2.50 ***
20250301 15:15:29 * SSMIS-17 85-92GHz 51.5 -30.74 56.41 -30.54 56.35 0.31 0.88 0.30 44.6
20250301 14:23:26 GMI 85-92GHz 52.0 -29.99 56.01 -30.02 56.01 0.22 0.64 0.30 74.5
20250301 14:23:26 * GMI 37GHz 52.0 -30.14 55.89 -30.17 55.90 0.18 0.51 0.20 ***
20250301 10:20:50 AMSR2 85-92GHz 53.2 -28.94 54.87 -29.25 54.93 0.48 1.36 1.20 3.1
20250301 10:20:50 * AMSR2 37GHz 53.2 -28.99 55.39 -29.30 55.44 0.21 0.60 0.20 ***
20250301 05:45:00 Metop-C ASCAT 55.2 *** *** *** *** *** *** *** ***
20250301 04:33:26 GMI 85-92GHz 56.2 -26.73 55.07 -27.01 55.07 0.25 0.72 0.10 34.8
20250301 04:33:26 * GMI 37GHz 56.2 -27.33 54.62 -27.61 54.62 0.20 0.57 0.50 ***
20250301 01:54:28 * SSMIS-16 85-92GHz 58.4 -26.11 54.96 -26.30 54.96 0.25 0.72 0.80 38.7
20250228 18:30:00 * Metop-C ASCAT 65.0 -24.18 54.63 -23.90 54.63 0.31 0.88 *** ***
20250228 15:08:26 GMI 85-92GHz 71.0 -23.22 54.66 -23.05 54.70 0.26 0.74 1.00 6.3
20250228 15:08:26 * GMI 37GHz 71.0 -22.87 55.20 -22.70 55.24 0.16 0.44 0.20 ***
20250228 14:38:08 * SSMIS-16 85-92GHz 72.0 -22.88 54.96 -22.85 54.97 0.16 0.44 0.40 67.6
20250228 09:39:49 AMSR2 85-92GHz 82.4 -21.79 55.15 -21.51 55.22 0.17 0.47 0.30 43.8
20250228 09:39:49 * AMSR2 37GHz 82.4 -21.99 55.04 -21.71 55.11 0.12 0.34 0.40 ***
20250228 06:03:00 Metop-C ASCAT 90.0 -21.21 55.13 -21.10 55.12 3.36 9.49 *** ***
20250228 02:06:31 * SSMIS-16 85-92GHz 94.9 -19.75 55.50 -19.83 55.51 0.13 0.36 0.30 98.4
20250227 21:29:38 * AMSR2 85-92GHz 100.6 -19.22 55.29 -19.08 55.27 0.10 0.27 0.50 100.0
20250227 21:29:38 AMSR2 37GHz 100.6 -19.32 55.29 -19.18 55.27 0.11 0.31 0.20 ***
20250227 18:00:00 Metop-A ASCAT 105.0 -19.00 55.30 -18.95 55.30 0.20 0.55 *** ***
20250227 15:53:27 * GMI 85-92GHz 105.0 -18.81 55.25 -18.71 55.25 0.09 0.26 0.40 100.0
20250227 15:53:27 GMI 37GHz 105.0 -18.81 55.25 -18.71 55.25 0.10 0.28 0.20 ***
20250227 14:52:47 * SSMIS-16 85-92GHz 105.0 -18.83 55.25 -18.81 55.25 0.10 0.27 0.50 100.0
20250227 14:05:47 SSMIS-17 85-92GHz 105.0 *** *** *** *** *** *** 0.60 ***
20250227 12:06:23 * SSMIS-18 85-92GHz 105.0 -18.74 55.25 -18.70 55.25 0.09 0.26 0.40 100.0
20250227 05:30:00 Metop-A ASCAT 104.2 *** *** *** *** *** *** *** ***
20250227 02:19:37 * SSMIS-16 85-92GHz 98.9 -17.85 55.16 -17.86 55.17 0.09 0.27 0.40 100.0
20250226 23:33:16 * SSMIS-18 85-92GHz 94.3 -17.88 55.02 -17.88 55.01 0.09 0.26 0.40 100.0
20250226 18:21:00 Metop-A ASCAT 85.0 *** *** *** *** *** *** *** ***
20250226 17:33:00 * Metop-C ASCAT 83.1 -17.69 54.47 -17.69 54.47 0.18 0.52 *** ***
20250226 15:06:57 * SSMIS-16 85-92GHz 73.0 -17.73 54.37 -17.72 54.33 0.10 0.28 0.30 100.0
20250226 14:20:18 SSMIS-17 85-92GHz 69.7 -17.57 54.42 -17.57 54.43 0.11 0.32 0.30 100.0
20250226 12:20:45 * SSMIS-18 85-92GHz 61.4 -17.60 53.92 -17.60 53.85 0.10 0.28 0.40 100.0
20250226 09:53:19 AMSR2 85-92GHz 58.2 -17.66 53.81 -17.67 53.68 0.12 0.35 0.50 100.0
20250226 09:53:19 * AMSR2 37GHz 58.2 -17.66 53.81 -17.67 53.68 0.11 0.32 0.30 ***
20250226 05:51:00 Metop-A ASCAT 54.9 -17.67 53.40 -17.67 53.36 0.20 0.56 *** ***
20250226 05:03:26 * GMI 85-92GHz 54.2 -17.48 53.52 -17.47 53.57 0.09 0.25 0.50 100.0
20250226 05:03:26 GMI 37GHz 54.2 -17.58 53.42 -17.57 53.47 0.24 0.67 0.20 ***
20250226 02:32:50 SSMIS-16 85-92GHz 52.1 -17.69 53.57 -17.69 53.57 0.15 0.43 0.20 88.6
20250225 23:47:19 * SSMIS-18 85-92GHz 49.7 -17.60 53.20 -17.61 53.17 0.18 0.50 0.40 90.4
20250225 21:41:37 AMSR2 85-92GHz 47.1 -17.52 52.95 -17.56 52.85 0.61 1.72 0.10 1.3
20250225 21:41:37 AMSR2 37GHz 47.1 -17.77 52.69 -17.81 52.58 0.21 0.60 0.30 ***
20250225 17:57:00 Metop-C ASCAT 42.4 *** *** *** *** *** *** *** ***
20250225 17:54:00 * Metop-C ASCAT 42.4 -17.94 52.36 -17.96 52.32 0.12 0.33 *** ***
20250225 15:20:29 * SSMIS-16 85-92GHz 39.2 -17.57 52.20 -17.62 52.13 0.19 0.54 0.50 33.8
20250225 14:34:20 SSMIS-17 85-92GHz 38.2 -17.47 52.04 -17.48 52.03 0.36 1.02 0.60 11.9
20250225 12:34:31 * SSMIS-18 85-92GHz 35.0 -17.90 51.99 -17.95 51.91 0.23 0.64 2.10 9.3

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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