-- 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
20250228 20:48:26 GMI 85-92GHz 31.3 *** *** *** *** *** *** 1.30 ***
20250228 20:48:26 * GMI 37GHz 31.3 -23.00 174.02 -23.00 174.01 0.46 1.29 1.70 ***
20250228 19:05:35 SSMIS-16 85-92GHz 32.0 -22.30 172.79 -22.30 172.86 0.52 1.47 3.00 0.0
20250228 18:17:38 SSMIS-17 85-92GHz 32.4 -22.95 173.51 -22.95 173.47 0.57 1.60 2.70 0.1
20250228 16:18:47 * SSMIS-18 85-92GHz 33.2 -22.60 173.20 -22.60 173.26 0.44 1.23 0.30 0.8
20250228 13:59:07 AMSR2 85-92GHz 34.2 -22.80 173.09 -22.80 173.11 0.63 1.78 0.10 0.0
20250228 13:59:07 * AMSR2 37GHz 34.2 -23.05 173.57 -23.05 173.60 0.41 1.16 3.00 ***
20250228 09:12:00 Metop-A ASCAT 36.6 *** *** *** *** *** *** *** ***
20250228 07:23:26 GMI 85-92GHz 37.6 -22.90 172.47 -22.92 172.52 0.43 1.22 1.20 0.6
20250228 07:23:26 * GMI 37GHz 37.6 -22.90 173.12 -22.92 173.17 0.27 0.76 1.80 ***
20250228 07:02:38 SSMIS-17 85-92GHz 37.8 *** *** *** *** *** *** 1.60 ***
20250228 05:03:34 SSMIS-18 85-92GHz 38.9 *** *** *** *** *** *** 1.00 ***
20250227 21:28:27 GMI 85-92GHz 41.1 *** *** *** *** *** *** 3.00 ***
20250227 21:28:27 GMI 37GHz 41.1 *** *** *** *** *** *** 3.00 ***
20250227 20:45:00 Metop-A ASCAT 41.4 *** *** *** *** *** *** *** ***
20250227 18:31:53 SSMIS-17 85-92GHz 42.3 *** *** *** *** *** *** 3.00 ***
20250227 16:32:45 * SSMIS-18 85-92GHz 43.1 -23.01 173.12 -23.02 173.16 0.40 1.12 3.00 2.8
20250227 13:16:14 AMSR2 85-92GHz 44.5 *** *** *** *** *** *** 3.00 ***
20250227 13:16:14 AMSR2 37GHz 44.5 *** *** *** *** *** *** 3.00 ***
20250227 10:24:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20250227 09:33:00 * Metop-A ASCAT 45.0 -22.25 171.37 -22.18 171.28 0.14 0.38 *** ***
20250227 08:03:27 * GMI 85-92GHz 45.0 -22.39 171.29 -22.42 171.33 0.28 0.78 3.00 31.0
20250227 08:03:27 GMI 37GHz 45.0 -22.54 171.99 -22.57 172.03 0.34 0.96 1.30 ***
20250227 07:17:00 SSMIS-17 85-92GHz 45.0 -23.22 172.73 -23.32 172.85 0.30 0.84 2.10 7.8
20250227 05:17:48 SSMIS-18 85-92GHz 45.0 -22.29 170.97 -22.32 170.99 0.61 1.73 3.00 0.1
20250226 21:06:00 * Metop-A ASCAT 46.2 -21.46 170.77 -21.41 170.75 0.14 0.40 *** ***
20250226 21:03:00 * Metop-A ASCAT 46.2 -21.51 170.82 -21.46 170.80 0.14 0.39 *** ***
20250226 18:45:39 SSMIS-17 85-92GHz 47.2 *** *** *** *** *** *** 2.10 ***
20250226 16:46:15 SSMIS-is 85-92GHz 48.0 *** *** *** *** *** *** 0.40 ***
20250226 16:46:15 SSMIS-18 85-92GHz 48.0 *** *** *** *** *** *** 0.40 ***
20250226 14:10:52 * AMSR2 85-92GHz 50.0 -21.42 171.74 -21.45 171.75 0.19 0.53 0.10 71.2
20250226 14:10:52 AMSR2 37GHz 50.0 -21.52 171.58 -21.55 171.59 0.23 0.64 0.30 ***
20250226 10:45:00 * Metop-C ASCAT 50.5 -20.53 170.35 -20.60 170.37 0.14 0.40 *** ***
20250226 07:31:51 SSMIS-17 85-92GHz 51.9 *** *** *** *** *** *** 3.00 ***
20250225 22:18:00 * Metop-C ASCAT 56.4 -19.13 170.35 -19.29 170.30 0.13 0.36 *** ***
20250225 21:18:26 GMI 85-92GHz 57.2 *** *** *** *** *** *** 3.00 ***
20250225 21:18:26 GMI 37GHz 57.2 *** *** *** *** *** *** 3.00 ***
20250225 18:59:05 SSMIS-17 85-92GHz 59.2 *** *** *** *** *** *** 0.90 ***
20250225 10:15:00 * Metop-A ASCAT 62.1 -17.72 170.89 -17.85 170.90 0.16 0.46 *** ***
20250225 06:51:45 SSMIS-16 85-92GHz 56.4 -17.32 171.23 -17.21 171.19 0.23 0.65 0.80 62.8
20250225 02:34:29 * AMSR2 85-92GHz 49.3 -16.44 170.97 -16.43 170.97 0.20 0.56 0.20 93.8
20250225 02:34:29 AMSR2 37GHz 49.3 -16.54 171.07 -16.53 171.07 0.21 0.60 0.20 ***
20250224 21:58:27 * GMI 85-92GHz 43.3 -15.96 170.41 -15.87 170.37 0.28 0.78 2.40 6.4
20250224 21:58:27 GMI 37GHz 43.3 -16.01 170.52 -15.92 170.47 0.43 1.21 0.20 ***
20250224 21:45:00 Metop-A ASCAT 43.1 *** *** *** *** *** *** *** ***
20250224 18:17:24 SSMIS-16 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***

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