-- 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
20250920 12:33:27 GMI 85-92GHz 22.3 24.10 113.11 24.10 113.18 0.54 1.53 2.60 0.0
20250920 12:33:27 * GMI 37GHz 22.3 24.00 113.16 24.00 113.23 0.32 0.90 0.60 ***
20250920 12:33:00 Metop-A ASCAT 22.3 *** *** *** *** *** *** *** ***
20250920 08:17:26 * SSMIS-18 85-92GHz 24.0 23.50 113.23 23.50 113.22 0.44 1.24 0.30 6.6
20250920 05:19:32 AMSR2 85-92GHz 25.3 23.50 113.82 23.50 113.81 0.50 1.42 2.00 1.8
20250920 05:19:32 * AMSR2 37GHz 25.3 23.50 113.60 23.50 113.59 0.44 1.25 1.30 ***
20250920 01:18:00 Metop-A ASCAT 27.0 22.08 113.46 22.09 113.37 3.36 9.49 *** ***
20250919 23:03:58 SSMIS-16 85-92GHz 27.9 23.56 114.39 23.57 114.36 0.41 1.16 1.90 4.2
20250919 22:20:14 SSMIS-17 85-92GHz 28.2 23.46 114.23 23.47 114.14 0.42 1.19 2.00 3.1
20250919 21:01:09 * SSMIS-18 85-92GHz 28.7 23.54 114.17 23.53 114.21 0.34 0.96 2.40 5.0
20250919 18:23:24 * AMSR2 85-92GHz 29.8 23.46 114.59 23.44 114.66 0.33 0.95 0.50 4.2
20250919 18:23:24 AMSR2 37GHz 29.8 *** *** *** *** *** *** 0.20 ***
20250919 08:31:15 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 0.30 ***
20250919 02:27:00 * Metop-C ASCAT 43.0 22.18 115.58 22.19 115.57 0.17 0.47 *** ***
20250919 01:48:26 GMI 85-92GHz 43.5 22.28 115.67 22.34 115.63 0.25 0.72 0.20 52.4
20250919 01:48:26 GMI 37GHz 43.5 22.18 115.29 22.24 115.25 0.40 1.12 3.00 ***
20250919 01:39:00 Metop-A ASCAT 43.6 *** *** *** *** *** *** *** ***
20250918 23:17:52 * SSMIS-16 85-92GHz 44.4 21.78 116.26 21.80 116.24 0.40 1.13 1.40 9.4
20250918 22:34:36 SSMIS-17 85-92GHz 43.8 22.08 115.81 22.21 115.70 0.47 1.32 2.20 1.9
20250918 17:41:13 AMSR2 85-92GHz 39.7 *** *** *** *** *** *** 1.80 ***
20250918 17:41:13 AMSR2 37GHz 39.7 21.10 116.04 21.07 116.05 0.62 1.75 0.40 ***
20250918 14:00:00 * Metop-C ASCAT 36.7 20.25 116.48 20.36 116.46 0.39 1.10 *** ***
20250918 13:12:00 Metop-A ASCAT 36.0 20.19 117.21 20.45 117.15 0.59 1.68 *** ***
20250918 05:30:43 AMSR2 85-92GHz 30.0 19.79 117.32 19.79 117.32 0.41 1.17 1.40 5.5
20250918 05:30:43 * AMSR2 37GHz 30.0 19.49 117.21 19.49 117.21 0.41 1.15 0.60 ***
20250918 02:33:27 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250918 02:33:27 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250918 01:09:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20250917 22:49:41 * SSMIS-17 85-92GHz 29.0 19.82 118.29 19.90 118.16 0.45 1.28 3.00 3.4
20250917 19:50:15 * SSMIS-18 85-92GHz 26.5 18.93 119.46 19.07 119.36 0.57 1.62 1.00 2.1
20250917 13:08:26 GMI 85-92GHz 25.0 18.01 120.54 18.05 120.42 0.57 1.60 3.00 1.1
20250917 13:08:26 * GMI 37GHz 25.0 18.06 120.70 18.10 120.57 0.47 1.33 1.10 ***
20250917 12:39:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20250917 07:16:52 * SSMIS-18 85-92GHz 28.9 17.47 121.42 17.64 121.28 0.57 1.61 3.00 0.0
20250917 04:47:03 * AMSR2 85-92GHz 30.0 17.23 121.38 17.34 121.30 0.25 0.71 3.00 0.0
20250917 04:47:03 AMSR2 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250917 00:42:00 Metop-A ASCAT 30.0 15.79 121.53 15.61 121.62 2.08 5.87 *** ***
20250916 20:04:51 SSMIS-18 85-92GHz 39.8 *** *** *** *** *** *** 0.10 ***
20250916 17:54:28 * AMSR2 85-92GHz 44.8 15.95 122.26 15.93 122.30 0.25 0.71 0.10 35.8
20250916 17:54:28 AMSR2 37GHz 44.8 15.85 122.47 15.83 122.51 0.43 1.22 2.90 ***
20250916 07:30:10 * SSMIS-18 85-92GHz 25.6 15.37 123.08 15.45 122.98 0.42 1.18 0.50 7.0

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