-- 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
20251023 23:44:17 SSMIS-16 85-92GHz 15.1 *** *** *** *** *** *** 3.00 ***
20251023 22:44:15 SSMIS-17 85-92GHz 15.5 14.40 107.05 14.34 107.01 0.52 1.47 0.10 0.2
20251023 21:31:54 * SSMIS-18 85-92GHz 16.0 14.49 106.74 14.57 106.78 0.35 0.99 3.00 0.0
20251023 18:13:48 AMSR2 85-92GHz 17.4 15.52 107.41 15.57 107.45 0.60 1.70 2.80 0.2
20251023 18:13:48 * AMSR2 37GHz 17.4 15.02 107.20 15.07 107.24 0.46 1.29 0.20 ***
20251023 11:09:21 SSMIS-16 85-92GHz 20.5 *** *** *** *** *** *** 3.00 ***
20251023 10:09:19 SSMIS-17 85-92GHz 21.0 *** *** *** *** *** *** 3.00 ***
20251023 08:56:46 * SSMIS-18 85-92GHz 21.7 14.74 107.26 14.76 107.29 0.45 1.27 3.00 0.0
20251023 06:00:44 AMSR2 85-92GHz 23.3 *** *** *** *** *** *** 0.30 ***
20251023 06:00:44 AMSR2 37GHz 23.3 *** *** *** *** *** *** 2.10 ***
20251023 03:43:26 GMI 85-92GHz 24.6 *** *** *** *** *** *** 1.10 ***
20251023 03:43:26 GMI 37GHz 24.6 *** *** *** *** *** *** 1.50 ***
20251023 01:39:00 Metop-A ASCAT 25.0 16.23 108.40 16.18 108.33 1.48 4.17 *** ***
20251022 23:57:43 SSMIS-16 85-92GHz 25.1 *** *** *** *** *** *** 0.70 ***
20251022 22:57:51 * SSMIS-17 85-92GHz 26.7 15.73 108.10 15.69 108.09 0.51 1.43 2.70 0.5
20251022 13:09:00 * Metop-A ASCAT 43.1 17.04 109.43 16.88 109.18 0.39 1.09 *** ***
20251022 10:23:58 * SSMIS-17 85-92GHz 45.0 17.15 109.87 17.08 109.75 0.26 0.73 1.80 4.0
20251022 02:48:00 * Metop-C ASCAT 45.0 17.54 110.91 17.51 111.00 0.25 0.71 *** ***
20251022 02:03:00 * Metop-A ASCAT 45.0 17.48 110.88 17.51 110.75 0.16 0.46 *** ***
20251021 23:11:54 * SSMIS-17 85-92GHz 45.7 17.72 110.81 17.72 110.81 0.23 0.64 1.00 51.0
20251021 18:25:22 AMSR2 85-92GHz 50.0 17.75 111.58 17.74 111.58 0.46 1.31 1.30 3.3
20251021 18:25:22 AMSR2 37GHz 50.0 17.35 111.90 17.34 111.89 0.26 0.75 1.10 ***
20251021 16:58:26 GMI 85-92GHz 49.1 17.38 111.82 17.39 111.84 0.46 1.29 1.50 3.2
20251021 16:58:26 * GMI 37GHz 49.1 16.63 111.87 16.64 111.90 0.24 0.67 1.50 ***
20251021 14:18:00 * Metop-C ASCAT 46.9 17.00 112.16 17.01 112.18 0.16 0.46 *** ***
20251021 11:37:09 SSMIS-16 85-92GHz 45.0 *** *** *** *** *** *** 1.40 ***
20251021 06:13:10 AMSR2 85-92GHz 45.0 16.99 111.47 17.01 111.51 0.51 1.43 2.40 1.4
20251021 06:13:10 * AMSR2 37GHz 45.0 17.14 111.73 17.16 111.77 0.25 0.70 1.80 ***
20251021 03:33:27 GMI 85-92GHz 45.0 *** *** *** *** *** *** 3.00 ***
20251021 03:33:27 * GMI 37GHz 45.0 16.83 112.04 16.87 112.15 0.55 1.54 1.50 ***
20251020 20:31:45 SSMIS-18 85-92GHz 45.0 *** *** *** *** *** *** 1.30 ***
20251020 07:58:30 SSMIS-18 85-92GHz 45.0 18.28 115.17 18.28 115.07 0.62 1.77 1.50 0.3
20251020 05:30:28 AMSR2 85-92GHz 45.0 18.48 115.40 18.48 115.40 0.64 1.80 0.50 0.0
20251020 05:30:28 * AMSR2 37GHz 45.0 18.53 114.93 18.53 114.93 0.32 0.92 0.20 ***
20251020 01:00:00 * Metop-A ASCAT 45.8 17.87 116.03 17.72 116.30 0.33 0.94 *** ***
20251019 22:57:22 SSMIS-16 85-92GHz 44.1 17.76 116.84 17.82 116.76 0.40 1.14 0.60 4.8
20251019 21:59:01 SSMIS-17 85-92GHz 43.3 17.62 117.02 17.45 117.19 0.39 1.09 2.40 7.9
20251019 20:45:32 * SSMIS-18 85-92GHz 42.3 17.58 117.06 17.55 117.09 0.39 1.12 2.40 17.8
20251019 16:43:26 * GMI 85-92GHz 37.9 17.05 117.81 17.19 117.66 0.29 0.83 1.00 26.3
20251019 16:43:26 GMI 37GHz 37.9 17.10 117.66 17.24 117.50 0.44 1.26 0.40 ***
20251019 12:30:00 Metop-A ASCAT 30.4 16.13 118.72 15.92 118.90 0.68 1.93 *** ***
20251019 10:22:51 SSMIS-16 85-92GHz 31.3 *** *** *** *** *** *** 2.80 ***
20251019 08:11:39 * SSMIS-18 85-92GHz 33.2 15.98 118.92 16.05 118.88 0.37 1.06 0.70 4.2
20251019 02:09:00 * Metop-C ASCAT 35.0 15.28 119.07 15.31 118.95 0.23 0.65 *** ***
20251019 01:21:00 Metop-A ASCAT 35.0 14.30 121.86 14.40 121.48 3.36 9.49 *** ***
20251018 23:11:45 SSMIS-16 85-92GHz 35.0 14.39 120.77 14.41 120.71 0.44 1.24 3.00 0.0
20251018 22:13:51 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 1.40 ***
20251018 17:54:57 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20251018 17:54:57 AMSR2 37GHz 35.0 14.39 123.80 14.37 123.90 0.53 1.51 3.00 ***
20251018 13:36:00 * Metop-C ASCAT 35.0 14.04 123.42 14.08 123.19 0.18 0.50 *** ***
20251018 12:51:00 Metop-A ASCAT 35.0 13.61 123.56 13.52 123.78 0.21 0.61 *** ***
20251018 04:08:27 * GMI 85-92GHz 30.0 13.50 125.61 13.61 125.41 0.37 1.04 3.00 0.0
20251018 04:08:27 GMI 37GHz 30.0 *** *** *** *** *** *** 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