-- 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
20260204 17:00:00 Metop-C ASCAT 25.6 -23.03 55.21 -23.04 55.23 0.19 0.52 *** ***
20260204 17:00:00 * Metop-A ASCAT 25.6 -23.03 55.21 -23.04 55.23 0.19 0.52 *** ***
20260204 05:09:00 * Metop-C ASCAT 32.1 -23.40 54.77 -23.40 54.78 0.11 0.32 *** ***
20260204 04:33:00 * Metop-A ASCAT 33.6 -23.36 54.76 -23.35 54.78 0.12 0.34 *** ***
20260204 03:14:11 SSMIS-16 85-92GHz 36.9 -23.23 54.63 -23.25 54.62 0.25 0.71 2.60 4.5
20260204 00:26:01 * SSMIS-18 85-92GHz 43.9 -23.24 54.64 -23.26 54.63 0.20 0.55 1.60 6.5
20260203 21:48:40 AMSR2 85-92GHz 45.9 -23.52 54.51 -23.55 54.48 0.24 0.68 2.90 18.7
20260203 21:48:40 * AMSR2 37GHz 45.9 -23.47 54.67 -23.50 54.64 0.19 0.55 1.70 ***
20260203 17:57:00 Metop-C ASCAT 47.5 *** *** *** *** *** *** *** ***
20260203 17:18:00 * Metop-A ASCAT 47.8 -23.77 54.84 -23.76 54.85 0.13 0.38 *** ***
20260203 04:54:00 * Metop-A ASCAT 53.0 -23.42 53.99 -23.45 54.02 0.13 0.37 *** ***
20260203 02:22:27 GMI 85-92GHz 55.0 *** *** *** *** *** *** 3.00 ***
20260203 02:22:27 GMI 37GHz 55.0 *** *** *** *** *** *** 3.00 ***
20260202 03:02:26 GMI 85-92GHz 46.3 -21.39 52.10 -21.34 52.04 0.27 0.76 0.40 48.2
20260202 03:02:26 * GMI 37GHz 46.3 -21.64 52.26 -21.59 52.20 0.19 0.55 2.80 ***
20260201 22:00:14 * AMSR2 85-92GHz 45.0 -20.80 51.55 -20.83 51.73 0.13 0.37 0.40 98.0
20260201 22:00:14 AMSR2 37GHz 45.0 -20.85 51.55 -20.88 51.73 0.16 0.44 0.20 ***
20260201 13:37:27 GMI 85-92GHz 45.0 *** *** *** *** *** *** 2.50 ***
20260201 13:37:27 * GMI 37GHz 45.0 -20.49 50.50 -20.51 50.63 0.60 1.69 2.80 ***
20260201 06:09:00 Metop-C ASCAT 42.6 *** *** *** *** *** *** *** ***
20260201 03:54:38 * SSMIS-16 85-92GHz 41.6 -19.80 48.64 -19.56 48.40 0.16 0.45 3.00 0.0
20260201 03:42:27 GMI 85-92GHz 41.5 -19.82 48.65 -19.62 48.45 0.24 0.69 2.20 2.5
20260201 03:42:27 GMI 37GHz 41.5 *** *** *** *** *** *** 1.70 ***
20260131 18:21:00 Metop-A ASCAT 49.4 *** *** *** *** *** *** *** ***
20260131 14:17:26 * GMI 85-92GHz 56.2 -17.78 47.05 -17.81 47.08 0.22 0.61 1.30 4.5
20260131 14:17:26 GMI 37GHz 56.2 -17.18 46.79 -17.21 46.82 0.41 1.15 3.00 ***
20260131 10:24:01 * AMSR2 85-92GHz 65.3 -17.12 46.47 -17.24 46.62 0.10 0.28 1.50 72.3
20260131 10:24:01 AMSR2 37GHz 65.3 -16.97 46.36 -17.09 46.52 0.21 0.61 0.30 ***
20260131 01:20:47 SSMIS-18 85-92GHz 95.5 *** *** *** *** *** *** 0.40 ***
20260130 22:11:29 * AMSR2 85-92GHz 97.0 -15.69 44.64 -15.76 44.84 0.11 0.31 0.40 100.0
20260130 22:11:29 AMSR2 37GHz 97.0 -15.74 44.53 -15.81 44.73 0.12 0.33 0.20 ***
20260130 19:21:00 Metop-C ASCAT 92.3 *** *** *** *** *** *** *** ***
20260130 18:45:00 Metop-A ASCAT 91.2 -15.79 44.07 -15.73 43.87 0.16 0.45 *** ***
20260130 15:02:27 * GMI 85-92GHz 85.1 -15.49 43.54 -15.48 43.46 0.12 0.35 0.50 100.0
20260130 15:02:27 GMI 37GHz 85.1 -15.44 43.54 -15.43 43.46 0.14 0.40 0.30 ***
20260130 06:51:00 * Metop-C ASCAT 62.8 -15.59 42.52 -15.60 42.50 0.15 0.42 *** ***

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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