-- 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
20250611 04:42:00 * Metop-C ASCAT 26.4 21.39 -107.68 21.50 -107.63 0.13 0.36 *** ***
20250611 03:51:00 Metop-A ASCAT 27.4 22.97 -108.94 22.90 -108.97 3.36 9.49 *** ***
20250611 01:25:16 SSMIS-17 85-92GHz 30.1 21.01 -108.10 20.88 -108.13 0.38 1.08 2.50 1.6
20250611 01:20:06 SSMIS-16 85-92GHz 30.2 20.95 -107.94 20.83 -107.97 0.30 0.84 0.50 3.8
20250610 22:13:27 * GMI 85-92GHz 33.6 20.87 -108.15 20.75 -108.15 0.25 0.72 2.40 4.1
20250610 22:13:27 GMI 37GHz 33.6 21.02 -107.93 20.90 -107.94 0.47 1.32 0.40 ***
20250610 20:46:20 * AMSR2 85-92GHz 35.0 20.68 -108.31 20.70 -108.31 0.25 0.70 0.50 5.0
20250610 20:46:20 AMSR2 37GHz 35.0 20.93 -107.99 20.95 -107.99 0.30 0.83 0.60 ***
20250610 17:30:00 Metop-C ASCAT 35.8 21.29 -108.32 21.35 -108.31 3.36 9.49 *** ***
20250610 08:48:26 * GMI 85-92GHz 47.7 19.37 -108.43 19.40 -108.46 0.21 0.59 0.90 63.2
20250610 08:48:26 GMI 37GHz 47.7 *** *** *** *** *** *** 2.20 ***
20250610 05:00:00 Metop-C ASCAT 51.7 19.47 -107.85 19.56 -107.91 0.42 1.20 *** ***
20250609 20:02:37 AMSR2 85-92GHz 63.3 18.02 -106.99 18.10 -107.18 0.30 0.85 0.30 31.6
20250609 20:02:37 * AMSR2 37GHz 63.3 18.37 -106.89 18.45 -107.08 0.16 0.46 0.60 ***
20250609 17:00:00 Metop-A ASCAT 65.0 *** *** *** *** *** *** *** ***
20250609 16:12:00 Metop-C ASCAT 65.0 *** *** *** *** *** *** *** ***
20250609 11:08:53 SSMIS-18 85-92GHz 64.3 17.80 -106.39 17.90 -106.43 0.24 0.67 1.80 26.9
20250609 09:09:48 AMSR2 85-92GHz 62.6 17.25 -105.65 17.23 -105.65 0.43 1.22 0.80 6.2
20250609 09:09:48 * AMSR2 37GHz 62.6 17.45 -105.71 17.43 -105.70 0.11 0.31 0.80 ***
20250609 04:30:00 Metop-A ASCAT 58.8 16.14 -105.92 16.04 -105.62 0.63 1.78 *** ***
20250609 01:46:31 * SSMIS-16 85-92GHz 56.5 16.27 -105.02 16.34 -105.30 0.15 0.44 0.90 70.9
20250608 22:34:30 SSMIS-18 85-92GHz 53.8 16.02 -104.26 16.14 -104.47 0.24 0.67 0.60 47.5
20250608 22:03:27 GMI 85-92GHz 53.4 16.17 -103.94 16.08 -103.80 0.27 0.76 0.50 36.0
20250608 22:03:27 * GMI 37GHz 53.4 16.17 -104.04 16.08 -103.91 0.12 0.34 0.40 ***
20250608 15:42:00 * Metop-A ASCAT 50.0 15.52 -103.21 15.49 -103.09 0.12 0.35 *** ***
20250608 12:59:35 SSMIS-17 85-92GHz 50.0 *** *** *** *** *** *** 0.30 ***
20250608 11:23:04 SSMIS-18 85-92GHz 49.0 *** *** *** *** *** *** 0.30 ***
20250608 08:27:19 * AMSR2 85-92GHz 44.1 14.94 -102.17 14.97 -102.23 0.27 0.76 0.90 32.5
20250608 08:27:19 AMSR2 37GHz 44.1 15.29 -102.22 15.32 -102.28 0.35 0.99 0.20 ***

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

This page automatically updates every 5 minutes