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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
20250316 17:06:00 * Metop-A ASCAT 40.5 -27.68 58.23 -27.73 58.36 1.00 2.82 *** ***
20250316 15:06:21 SSMIS-17 85-92GHz 41.6 *** *** *** *** *** *** 2.30 ***
20250316 10:18:26 GMI 85-92GHz 44.3 -27.12 55.34 -27.28 55.74 0.38 1.08 2.50 1.9
20250316 10:18:26 * GMI 37GHz 44.3 -27.97 55.79 -28.13 56.19 0.26 0.72 3.00 ***
20250316 02:37:53 * SSMIS-17 85-92GHz 46.4 -26.02 52.21 -26.00 52.14 0.44 1.23 2.20 1.8
20250316 00:42:37 SSMIS-18 85-92GHz 47.2 -25.76 51.48 -25.64 50.83 0.37 1.04 1.50 3.4
20250316 00:28:27 GMI 85-92GHz 47.3 -26.59 50.74 -26.49 50.22 0.44 1.24 3.00 1.8
20250316 00:28:27 * GMI 37GHz 47.3 -26.29 51.40 -26.19 50.88 0.33 0.93 0.30 ***
20250315 18:21:00 Metop-C ASCAT 50.0 *** *** *** *** *** *** *** ***
20250315 15:21:13 * SSMIS-17 85-92GHz 51.1 -26.06 47.40 -26.04 47.14 0.23 0.64 3.00 0.0
20250315 13:26:02 SSMIS-18 85-92GHz 51.9 -26.06 46.44 -26.09 46.76 0.28 0.80 0.40 24.3
20250315 10:34:26 * AMSR2 85-92GHz 53.1 -25.55 45.94 -25.57 46.17 0.28 0.80 0.20 52.6
20250315 10:34:26 AMSR2 37GHz 53.1 -24.85 45.94 -24.87 46.17 0.58 1.64 0.80 ***
20250315 05:54:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20250315 02:51:48 * SSMIS-17 85-92GHz 55.0 -25.96 44.28 -25.95 44.24 0.19 0.55 0.20 24.1
20250315 01:08:27 GMI 85-92GHz 55.0 -25.56 44.15 -25.60 44.29 0.19 0.53 0.20 47.3
20250315 01:08:27 GMI 37GHz 55.0 *** *** *** *** *** *** 0.50 ***
20250315 00:56:17 * SSMIS-18 85-92GHz 55.0 -25.76 44.30 -25.71 44.16 0.13 0.38 3.00 -1.2
20250314 22:26:17 AMSR2 85-92GHz 55.0 -24.83 43.69 -24.87 43.79 0.45 1.29 0.80 18.7
20250314 22:26:17 * AMSR2 37GHz 55.0 -24.73 43.36 -24.77 43.46 0.24 0.69 0.20 ***
20250314 18:42:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20250314 17:48:00 Metop-A ASCAT 54.9 *** *** *** *** *** *** *** ***
20250314 15:35:54 * SSMIS-17 85-92GHz 54.0 -24.21 42.72 -24.09 42.58 0.25 0.72 1.70 44.5
20250314 13:40:45 * SSMIS-18 85-92GHz 53.2 -24.08 42.07 -24.19 42.19 0.35 0.99 1.40 17.4
20250314 11:43:26 GMI 85-92GHz 52.4 -23.89 42.68 -23.86 42.65 0.56 1.59 2.00 1.2
20250314 11:43:26 GMI 37GHz 52.4 -23.89 42.19 -23.86 42.16 0.44 1.23 0.70 ***
20250314 06:15:00 * Metop-C ASCAT 50.0 -23.18 41.32 -23.07 41.20 0.15 0.42 *** ***
20250314 03:05:12 SSMIS-17 85-92GHz 48.8 -22.64 40.94 -22.55 40.82 0.58 1.63 0.90 1.1
20250314 01:48:26 GMI 85-92GHz 48.3 -22.66 40.72 -22.76 40.87 0.38 1.07 1.10 13.5
20250314 01:48:26 * GMI 37GHz 48.3 -22.81 40.83 -22.91 40.97 0.14 0.39 0.70 ***
20250314 01:09:23 SSMIS-18 85-92GHz 48.0 -22.57 40.79 -22.77 41.08 0.30 0.86 1.50 18.5
20250313 18:09:00 * Metop-A ASCAT 45.1 -21.26 39.67 -21.16 39.52 0.19 0.54 *** ***
20250313 15:51:08 SSMIS-17 85-92GHz 44.1 -21.54 39.07 -21.34 38.81 0.33 0.94 1.00 4.7
20250313 13:55:26 SSMIS-18 85-92GHz 43.3 -21.45 38.92 -21.53 39.03 0.45 1.27 2.70 2.3
20250313 12:23:26 * GMI 85-92GHz 42.7 -20.12 38.46 -20.00 38.33 0.27 0.77 3.00 0.0
20250313 12:23:26 GMI 37GHz 42.7 *** *** *** *** *** *** 2.00 ***
20250313 10:48:17 * AMSR2 85-92GHz 42.0 -20.40 38.03 -20.49 38.12 0.44 1.25 1.60 2.6
20250313 10:48:17 AMSR2 37GHz 42.0 -20.30 37.60 -20.39 37.69 0.52 1.46 0.40 ***
20250311 19:48:00 Metop-C ASCAT 51.9 *** *** *** *** *** *** *** ***
20250311 16:20:55 SSMIS-17 85-92GHz 53.1 *** *** *** *** *** *** 3.00 ***
20250311 13:48:26 GMI 85-92GHz 54.0 *** *** *** *** *** *** 3.00 ***
20250311 13:48:26 GMI 37GHz 54.0 *** *** *** *** *** *** 3.00 ***
20250311 11:01:54 AMSR2 85-92GHz 54.9 *** *** *** *** *** *** 0.80 ***
20250311 11:01:54 AMSR2 37GHz 54.9 *** *** *** *** *** *** 1.70 ***
20250311 07:15:00 Metop-C ASCAT 56.2 -17.27 37.46 -17.33 37.40 3.36 9.49 *** ***
20250311 06:21:00 Metop-A ASCAT 56.5 *** *** *** *** *** *** *** ***
20250311 03:46:01 SSMIS-17 85-92GHz 57.4 *** *** *** *** *** *** 1.70 ***
20250311 02:18:26 GMI 85-92GHz 57.9 *** *** *** *** *** *** 2.80 ***
20250311 02:18:26 GMI 37GHz 57.9 *** *** *** *** *** *** 3.00 ***
20250310 22:48:39 AMSR2 85-92GHz 59.2 *** *** *** *** *** *** 0.40 ***
20250310 22:48:39 * AMSR2 37GHz 59.2 -15.73 38.08 -15.76 38.04 0.39 1.11 2.40 ***
20250310 18:27:00 Metop-C ASCAT 60.7 -17.18 40.33 -17.14 40.38 3.36 9.49 *** ***
20250310 15:46:28 SSMIS-16 85-92GHz 61.6 *** *** *** *** *** *** 1.40 ***
20250310 06:42:00 Metop-A ASCAT 65.0 *** *** *** *** *** *** *** ***
20250310 03:11:05 * SSMIS-16 85-92GHz 68.5 -15.01 40.27 -14.99 40.33 0.09 0.25 0.30 100.0
20250310 02:58:27 * GMI 85-92GHz 68.8 -15.10 40.18 -15.09 40.22 0.08 0.24 0.30 100.0
20250310 02:58:27 GMI 37GHz 68.8 -15.15 40.34 -15.14 40.38 0.19 0.52 1.20 ***
20250309 17:54:00 Metop-A ASCAT 79.8 *** *** *** *** *** *** *** ***
20250309 16:00:02 SSMIS-16 85-92GHz 75.8 -14.95 41.69 -14.96 41.45 0.17 0.49 0.60 48.4
20250309 15:08:12 * SSMIS-17 85-92GHz 74.0 -14.74 41.64 -14.74 41.75 0.15 0.41 0.20 76.8
20250309 13:38:27 GMI 85-92GHz 70.9 -15.13 41.77 -15.14 41.60 0.18 0.51 0.40 70.7
20250309 13:38:27 GMI 37GHz 70.9 -15.08 41.87 -15.09 41.70 0.22 0.63 0.20 ***
20250309 13:11:19 SSMIS-18 85-92GHz 70.0 -15.33 41.86 -15.34 41.60 0.19 0.55 0.40 59.8
20250309 11:14:13 AMSR2 85-92GHz 65.9 -15.11 42.30 -15.11 42.25 0.23 0.64 0.20 52.6
20250309 11:14:13 * AMSR2 37GHz 65.9 -15.21 42.36 -15.21 42.30 0.13 0.38 0.30 ***
20250309 06:15:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20250309 03:24:23 SSMIS-16 85-92GHz 50.7 -14.78 44.00 -14.77 44.16 0.23 0.64 0.70 51.1
20250309 02:32:56 * SSMIS-17 85-92GHz 49.2 -14.84 44.12 -14.84 44.13 0.13 0.37 0.70 92.7
20250309 00:36:01 * SSMIS-18 85-92GHz 46.0 -14.75 44.47 -14.72 44.66 0.16 0.46 0.70 88.2

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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