-- 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
20251006 11:36:00 Metop-C ASCAT 45.1 49.97 -30.67 49.98 -30.60 3.36 9.49 *** ***
20251006 10:48:00 Metop-A ASCAT 45.3 *** *** *** *** *** *** *** ***
20251006 08:48:27 GMI 85-92GHz 45.7 *** *** *** *** *** *** 1.30 ***
20251006 08:48:27 GMI 37GHz 45.7 *** *** *** *** *** *** 2.30 ***
20251006 06:41:56 SSMIS-18 85-92GHz 46.1 *** *** *** *** *** *** 1.10 ***
20251006 04:09:42 AMSR2 85-92GHz 46.6 *** *** *** *** *** *** 0.30 ***
20251006 04:09:42 AMSR2 37GHz 46.6 *** *** *** *** *** *** 1.90 ***
20251005 18:26:31 * SSMIS-18 85-92GHz 48.7 48.88 -37.37 48.78 -37.64 0.63 1.77 3.00 0.1
20251005 09:28:26 GMI 85-92GHz 50.0 47.51 -40.29 47.37 -40.58 0.58 1.63 1.10 0.5
20251005 09:28:26 * GMI 37GHz 50.0 47.56 -40.22 47.42 -40.51 0.26 0.75 1.70 ***
20251005 06:58:07 SSMIS-18 85-92GHz 50.0 46.81 -41.16 46.54 -41.64 0.35 0.99 3.00 0.0
20251005 05:05:57 AMSR2 85-92GHz 50.0 46.10 -42.25 46.24 -42.00 0.48 1.36 0.20 2.6
20251005 05:05:57 * AMSR2 37GHz 50.0 46.30 -42.40 46.44 -42.15 0.34 0.97 0.60 ***
20251004 18:39:47 * SSMIS-18 85-92GHz 52.2 43.93 -45.51 43.71 -45.75 0.36 1.01 0.50 15.8
20251004 18:18:27 GMI 85-92GHz 52.4 43.65 -45.40 43.51 -45.54 0.53 1.49 0.70 2.5
20251004 18:18:27 GMI 37GHz 52.4 43.60 -45.05 43.46 -45.20 0.38 1.07 2.10 ***
20251004 15:30:38 AMSR2 85-92GHz 53.5 42.80 -46.23 42.62 -46.39 0.24 0.67 3.00 0.0
20251004 15:30:38 * AMSR2 37GHz 53.5 42.45 -46.50 42.27 -46.67 0.12 0.34 0.90 ***
20251004 14:03:00 Metop-C ASCAT 54.1 *** *** *** *** *** *** *** ***
20251004 13:12:00 * Metop-A ASCAT 54.5 42.04 -47.39 41.69 -47.64 0.14 0.38 *** ***
20251004 07:14:04 * SSMIS-18 85-92GHz 57.0 41.27 -48.24 40.92 -48.40 0.26 0.73 2.30 18.8
20251004 00:06:00 Metop-C ASCAT 60.0 *** *** *** *** *** *** *** ***
20251003 18:58:25 GMI 85-92GHz 60.0 38.76 -50.01 38.49 -50.24 0.39 1.11 2.40 5.7
20251003 18:58:25 * GMI 37GHz 60.0 38.71 -49.37 38.44 -49.60 0.25 0.70 0.90 ***
20251003 18:52:23 SSMIS-18 85-92GHz 60.0 38.84 -50.09 38.59 -50.30 0.33 0.93 2.50 11.8
20251003 16:24:16 * AMSR2 85-92GHz 60.0 38.05 -49.62 38.34 -49.36 0.26 0.72 2.40 18.5
20251003 16:24:16 AMSR2 37GHz 60.0 *** *** *** *** *** *** 0.60 ***
20251003 13:36:00 Metop-A ASCAT 60.0 *** *** *** *** *** *** *** ***
20251003 12:42:00 * Metop-C ASCAT 60.0 37.58 -49.25 37.40 -49.47 0.31 0.88 *** ***
20251003 07:29:48 * SSMIS-18 85-92GHz 61.9 35.63 -51.88 35.85 -51.53 0.52 1.46 2.80 0.2
20251003 05:21:42 AMSR2 85-92GHz 62.8 *** *** *** *** *** *** 0.10 ***
20251003 05:21:42 AMSR2 37GHz 62.8 *** *** *** *** *** *** 0.40 ***
20251003 00:24:00 * Metop-C ASCAT 64.8 33.96 -53.70 33.87 -53.95 0.37 1.04 *** ***
20251002 19:43:26 * GMI 85-92GHz 65.0 33.69 -56.06 33.82 -55.52 0.28 0.80 1.60 5.7
20251002 19:43:26 GMI 37GHz 65.0 *** *** *** *** *** *** 0.30 ***
20251002 17:18:52 AMSR2 85-92GHz 65.0 33.31 -57.48 33.36 -57.24 0.32 0.92 0.80 2.8
20251002 17:18:52 AMSR2 37GHz 65.0 *** *** *** *** *** *** 1.00 ***
20251002 13:57:00 * Metop-A ASCAT 66.7 32.84 -59.23 32.92 -58.84 0.28 0.79 *** ***
20251002 06:17:48 AMSR2 85-92GHz 79.5 *** *** *** *** *** *** 0.10 ***
20251002 06:17:48 AMSR2 37GHz 79.5 *** *** *** *** *** *** 1.20 ***
20251002 01:36:00 * Metop-A ASCAT 83.7 31.97 -65.53 32.12 -64.91 0.21 0.59 *** ***
20251001 18:13:54 * AMSR2 85-92GHz 85.0 31.22 -69.17 31.18 -69.36 0.13 0.37 0.30 96.6
20251001 18:13:54 AMSR2 37GHz 85.0 31.22 -69.11 31.18 -69.30 0.14 0.41 0.20 ***
20251001 15:06:00 Metop-C ASCAT 82.6 30.77 -70.38 30.74 -70.50 0.21 0.60 *** ***
20251001 14:18:00 * Metop-A ASCAT 81.9 30.59 -70.60 30.64 -70.45 0.12 0.33 *** ***
20251001 11:46:07 * SSMIS-16 85-92GHz 79.8 30.72 -71.37 30.72 -71.38 0.12 0.35 0.40 99.9
20251001 10:57:02 SSMIS-17 85-92GHz 79.1 30.62 -71.74 30.72 -71.48 0.13 0.36 0.40 93.7
20251001 09:42:17 SSMIS-18 85-92GHz 78.1 *** *** *** *** *** *** 0.30 ***
20251001 07:14:05 * AMSR2 85-92GHz 76.0 30.13 -72.69 29.98 -73.11 0.11 0.32 0.40 100.0
20251001 07:14:05 AMSR2 37GHz 76.0 30.13 -72.81 29.98 -73.22 0.14 0.41 0.30 ***
20251001 02:45:00 Metop-C ASCAT 75.0 *** *** *** *** *** *** *** ***
20251001 01:54:00 * Metop-A ASCAT 75.0 29.42 -74.29 29.47 -74.08 0.13 0.38 *** ***
20250930 23:19:14 * SSMIS-16 85-92GHz 75.0 29.31 -74.99 29.34 -74.89 0.15 0.43 0.50 75.4
20250930 21:14:01 * SSMIS-18 85-92GHz 75.0 29.30 -75.68 29.27 -75.80 0.16 0.45 0.50 57.0
20250930 15:30:00 * Metop-C ASCAT 72.9 29.11 -76.43 29.09 -76.55 0.19 0.55 *** ***
20250930 14:39:00 * Metop-A ASCAT 72.2 28.74 -76.57 28.74 -76.55 0.17 0.48 *** ***
20250930 09:56:29 SSMIS-18 85-92GHz 64.9 28.74 -76.69 28.66 -76.75 0.24 0.67 2.50 19.3
20250930 06:31:30 AMSR2 85-92GHz 55.9 28.64 -76.94 28.58 -76.96 0.20 0.55 2.00 40.4
20250930 06:31:30 * AMSR2 37GHz 55.9 28.64 -77.17 28.58 -77.19 0.12 0.34 1.30 ***
20250930 02:15:00 * Metop-A ASCAT 55.0 28.18 -77.24 28.22 -77.23 0.13 0.37 *** ***
20250929 21:48:27 GMI 85-92GHz 55.9 *** *** *** *** *** *** 3.00 ***
20250929 21:48:27 GMI 37GHz 55.9 *** *** *** *** *** *** 3.00 ***
20250929 21:28:02 SSMIS-18 85-92GHz 55.5 *** *** *** *** *** *** 3.00 ***
20250929 18:25:09 AMSR2 85-92GHz 55.0 27.62 -77.30 27.52 -77.30 0.31 0.87 0.40 35.3
20250929 18:25:09 * AMSR2 37GHz 55.0 27.27 -77.24 27.17 -77.24 0.25 0.71 0.50 ***
20250929 15:03:00 * Metop-A ASCAT 52.5 26.92 -77.15 26.88 -77.13 0.16 0.46 *** ***
20250929 11:58:27 * GMI 85-92GHz 50.0 26.65 -76.99 26.61 -76.99 0.39 1.10 0.20 16.4
20250929 11:58:27 GMI 37GHz 50.0 26.00 -76.60 25.96 -76.60 0.41 1.17 1.00 ***
20250929 07:27:38 AMSR2 85-92GHz 42.4 *** *** *** *** *** *** 3.00 ***
20250929 07:27:38 AMSR2 37GHz 42.4 *** *** *** *** *** *** 3.00 ***
20250929 01:45:00 * Metop-C ASCAT 36.5 24.50 -76.93 24.57 -76.93 0.24 0.67 *** ***
20250928 22:33:26 * GMI 85-92GHz 35.0 24.41 -77.02 24.55 -76.99 0.33 0.95 2.70 10.5
20250928 22:33:26 GMI 37GHz 35.0 *** *** *** *** *** *** 0.70 ***
20250928 14:33:00 * Metop-C ASCAT 32.1 23.27 -77.46 23.29 -77.46 0.13 0.36 *** ***
20250928 12:38:26 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250928 12:38:26 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250928 06:45:30 * AMSR2 85-92GHz 30.0 22.94 -77.21 22.89 -77.15 0.33 0.94 0.70 15.1
20250928 06:45:30 AMSR2 37GHz 30.0 22.69 -77.26 22.64 -77.20 0.49 1.39 0.60 ***
20250928 02:06:00 * Metop-C ASCAT 30.0 22.40 -76.93 22.43 -76.97 0.20 0.56 *** ***
20250928 01:15:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20250927 23:13:26 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250927 23:13:26 GMI 37GHz 30.0 22.49 -75.94 22.52 -75.95 0.41 1.15 3.00 ***
20250927 18:36:03 AMSR2 85-92GHz 30.0 22.02 -75.65 21.99 -75.63 0.37 1.06 0.90 9.6
20250927 18:36:03 * AMSR2 37GHz 30.0 22.02 -75.22 21.99 -75.20 0.31 0.87 1.40 ***
20250927 14:03:00 * Metop-A ASCAT 30.0 21.77 -77.04 21.78 -77.10 0.16 0.46 *** ***

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