-- Link to M-PERC page --

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
20250227 02:12:00 Metop-A ASCAT 32.1 *** *** *** *** *** *** *** ***
20250226 22:58:09 SSMIS-16 85-92GHz 33.9 *** *** *** *** *** *** 2.60 ***
20250226 20:11:59 * SSMIS-18 85-92GHz 35.0 -26.08 104.22 -26.07 104.18 0.55 1.57 3.00 0.3
20250226 14:54:00 * Metop-A ASCAT 37.6 -26.28 104.22 -26.25 104.17 0.17 0.49 *** ***
20250226 11:41:06 * SSMIS-16 85-92GHz 40.3 -25.93 103.57 -25.91 103.54 0.34 0.96 2.20 2.0
20250226 08:54:51 SSMIS-18 85-92GHz 42.6 *** *** *** *** *** *** 3.00 ***
20250226 06:33:20 * AMSR2 85-92GHz 45.0 -26.29 102.92 -26.18 102.83 0.36 1.03 0.30 51.2
20250226 06:33:20 AMSR2 37GHz 45.0 -25.79 103.09 -25.68 103.00 0.41 1.15 0.40 ***
20250226 02:30:00 * Metop-A ASCAT 58.1 -24.89 102.42 -24.89 102.42 0.22 0.62 *** ***
20250226 01:58:26 GMI 85-92GHz 60.1 *** *** *** *** *** *** 3.00 ***
20250226 01:58:26 GMI 37GHz 60.1 *** *** *** *** *** *** 1.10 ***
20250226 01:42:00 Metop-C ASCAT 61.1 *** *** *** *** *** *** *** ***
20250225 23:11:08 * SSMIS-16 85-92GHz 70.6 -24.05 102.45 -24.09 102.47 0.29 0.81 2.10 1.1
20250225 20:25:16 * SSMIS-18 85-92GHz 80.9 -24.82 103.17 -24.83 103.17 0.13 0.36 0.20 33.8
20250225 11:55:30 * SSMIS-16 85-92GHz 95.1 -23.54 102.57 -23.46 102.58 0.15 0.42 3.00 0.5
20250225 11:09:28 * SSMIS-17 85-92GHz 95.7 -23.10 102.74 -23.16 102.74 0.14 0.39 2.60 5.5
20250225 09:09:48 * SSMIS-18 85-92GHz 97.4 -22.58 102.27 -22.47 102.28 0.13 0.37 0.30 86.1
20250225 02:43:27 * GMI 85-92GHz 98.6 -21.48 102.33 -21.45 102.35 0.12 0.33 0.40 100.0
20250225 02:43:27 GMI 37GHz 98.6 -21.33 102.28 -21.30 102.29 0.12 0.34 0.30 ***
20250225 02:03:00 Metop-C ASCAT 98.4 -21.28 102.22 -21.35 102.19 0.19 0.54 *** ***
20250224 23:23:42 * SSMIS-16 85-92GHz 97.2 -20.88 102.62 -20.90 102.61 0.11 0.32 0.40 100.0
20250224 22:38:05 SSMIS-17 85-92GHz 96.9 -20.92 102.68 -21.04 102.61 0.11 0.32 0.40 100.0
20250224 20:38:02 * SSMIS-18 85-92GHz 96.1 -20.59 102.88 -20.57 102.89 0.13 0.37 0.40 98.1
20250224 13:18:27 * GMI 85-92GHz 87.2 -19.70 103.06 -19.82 102.99 0.10 0.29 0.50 100.0
20250224 13:18:27 GMI 37GHz 87.2 -19.65 103.11 -19.77 103.05 0.10 0.30 0.30 ***
20250224 12:10:07 * SSMIS-16 85-92GHz 85.3 -19.74 103.06 -19.68 103.10 0.11 0.30 0.50 100.0
20250224 11:24:17 SSMIS-17 85-92GHz 84.0 -19.62 103.26 -19.63 103.26 0.11 0.32 0.50 100.0
20250224 09:24:18 SSMIS-18 85-92GHz 80.7 -19.48 103.27 -19.39 103.32 0.12 0.33 0.60 99.3
20250224 06:47:37 AMSR2 85-92GHz 75.7 -19.24 103.63 -19.11 103.73 0.12 0.34 0.50 99.3
20250224 06:47:37 * AMSR2 37GHz 75.7 -19.09 103.63 -18.96 103.73 0.09 0.26 0.40 ***
20250224 01:30:00 Metop-A ASCAT 63.8 -18.33 104.40 -18.43 104.30 0.22 0.62 *** ***
20250223 23:36:48 * SSMIS-16 85-92GHz 59.0 -18.29 104.59 -18.28 104.60 0.09 0.26 0.60 100.0
20250223 22:51:20 SSMIS-17 85-92GHz 57.1 -18.17 104.78 -18.23 104.70 0.11 0.30 0.70 100.0
20250223 20:50:47 * SSMIS-18 85-92GHz 52.1 -18.07 105.06 -18.04 105.10 0.11 0.31 0.70 98.0
20250223 18:35:55 AMSR2 85-92GHz 46.5 -18.01 105.29 -17.90 105.45 0.18 0.52 0.20 84.0
20250223 18:35:55 * AMSR2 37GHz 46.5 -17.61 105.29 -17.50 105.45 0.11 0.32 0.60 ***
20250223 11:39:08 * SSMIS-17 85-92GHz 42.4 -17.05 105.76 -17.04 105.79 0.19 0.55 1.10 17.5
20250223 06:05:08 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 2.00 ***
20250223 06:05:08 * AMSR2 37GHz 40.0 -16.56 106.77 -16.51 106.89 0.21 0.59 0.30 ***

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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