-- 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
20250401 17:18:26 GMI 85-92GHz 40.4 *** *** *** *** *** *** 2.50 ***
20250401 17:18:26 GMI 37GHz 40.4 -25.40 88.88 -25.40 88.87 0.26 0.73 2.50 ***
20250401 14:54:00 * Metop-A ASCAT 41.7 -24.54 88.66 -24.53 88.68 0.16 0.45 *** ***
20250401 13:00:47 SSMIS-17 85-92GHz 42.8 *** *** *** *** *** *** 2.80 ***
20250401 12:22:22 SSMIS-16 85-92GHz 43.1 -25.31 88.77 -25.29 88.81 0.58 1.63 2.60 0.4
20250401 07:59:21 AMSR2 85-92GHz 45.0 *** *** *** *** *** *** 1.70 ***
20250401 07:59:21 * AMSR2 37GHz 45.0 -25.92 88.61 -25.94 88.59 0.24 0.69 0.20 ***
20250401 03:53:27 GMI 85-92GHz 46.8 -24.51 88.37 -24.49 88.43 0.27 0.77 2.10 4.4
20250401 03:53:27 GMI 37GHz 46.8 -25.91 88.59 -25.89 88.65 0.29 0.83 0.20 ***
20250401 02:27:00 * Metop-A ASCAT 48.0 -24.64 88.54 -24.64 88.54 0.13 0.38 *** ***
20250331 23:52:47 SSMIS-16 85-92GHz 50.1 -24.60 88.71 -24.60 88.73 0.26 0.73 1.90 3.7
20250331 19:51:30 AMSR2 85-92GHz 53.5 -24.74 88.51 -24.75 88.49 0.40 1.13 1.80 1.5
20250331 19:51:30 * AMSR2 37GHz 53.5 -25.39 89.11 -25.40 89.10 0.31 0.88 0.30 ***
20250331 16:06:00 * Metop-C ASCAT 56.6 -24.43 88.79 -24.48 88.80 0.15 0.42 *** ***
20250331 15:18:00 Metop-A ASCAT 57.3 *** *** *** *** *** *** *** ***
20250331 12:36:16 * SSMIS-16 85-92GHz 59.5 -24.56 88.88 -24.48 88.85 0.20 0.57 2.90 12.8
20250331 02:51:00 Metop-A ASCAT 66.3 *** *** *** *** *** *** *** ***
20250331 02:48:00 Metop-A ASCAT 66.3 *** *** *** *** *** *** *** ***
20250331 00:05:59 * SSMIS-16 85-92GHz 66.6 -24.40 88.43 -24.33 88.39 0.17 0.48 3.00 4.8
20250330 19:08:03 * AMSR2 85-92GHz 70.0 -23.32 88.36 -23.48 88.40 0.22 0.63 0.30 20.8
20250330 19:08:03 AMSR2 37GHz 70.0 -22.62 87.98 -22.78 88.02 0.28 0.78 0.50 ***
20250330 12:50:31 * SSMIS-16 85-92GHz 82.9 -22.55 88.16 -22.37 88.21 0.15 0.41 1.40 31.1
20250330 08:12:49 * AMSR2 85-92GHz 94.5 -21.65 88.03 -21.69 88.02 0.13 0.36 0.20 96.9
20250330 08:12:49 AMSR2 37GHz 94.5 -21.40 88.09 -21.44 88.07 0.13 0.37 0.30 ***
20250330 04:00:00 Metop-C ASCAT 104.2 *** *** *** *** *** *** *** ***
20250330 00:18:29 * SSMIS-16 85-92GHz 111.9 -20.48 88.73 -20.38 88.81 0.12 0.33 1.70 11.9
20250329 21:25:07 * SSMIS-18 85-92GHz 117.9 -20.10 89.00 -19.98 89.09 0.11 0.32 2.40 -0.2
20250329 17:53:26 * GMI 85-92GHz 125.0 -19.39 89.42 -19.33 89.46 0.11 0.31 0.20 100.0
20250329 17:53:26 GMI 37GHz 125.0 -19.44 89.42 -19.38 89.46 0.12 0.33 0.30 ***
20250329 15:57:00 Metop-A ASCAT 124.1 *** *** *** *** *** *** *** ***
20250329 15:12:00 Metop-C ASCAT 123.8 -18.72 89.70 -18.62 89.80 0.22 0.61 *** ***
20250329 13:05:15 * SSMIS-16 85-92GHz 123.0 -18.86 89.88 -19.07 89.69 0.11 0.32 0.20 100.0
20250329 12:03:59 SSMIS-17 85-92GHz 122.5 -18.72 90.20 -18.64 90.28 0.11 0.31 0.20 100.0
20250329 10:11:48 * SSMIS-18 85-92GHz 121.7 -18.57 90.33 -18.74 90.13 0.10 0.28 0.20 100.0
20250329 07:30:47 * AMSR2 85-92GHz 120.0 -18.19 90.80 -18.29 90.64 0.09 0.25 0.30 100.0
20250329 07:30:47 AMSR2 37GHz 120.0 -18.19 90.80 -18.29 90.64 0.10 0.29 0.20 ***
20250329 04:28:27 * GMI 85-92GHz 119.4 -17.85 91.22 -17.91 91.07 0.08 0.23 0.30 100.0
20250329 04:28:27 GMI 37GHz 119.4 -17.85 91.27 -17.91 91.12 0.10 0.28 0.20 ***
20250329 03:27:00 Metop-A ASCAT 118.9 *** *** *** *** *** *** *** ***
20250329 00:31:33 SSMIS-16 85-92GHz 117.7 -17.58 91.98 -17.53 92.14 0.11 0.31 0.30 100.0
20250328 23:30:37 * SSMIS-17 85-92GHz 117.3 -17.48 92.19 -17.48 92.19 0.10 0.28 0.30 100.0
20250328 21:38:01 * SSMIS-18 85-92GHz 116.5 -17.40 92.46 -17.35 92.66 0.09 0.25 0.30 100.0
20250328 19:18:40 * AMSR2 85-92GHz 115.0 -17.43 92.87 -17.48 92.65 0.09 0.25 0.40 100.0
20250328 19:18:40 AMSR2 37GHz 115.0 -17.38 92.93 -17.43 92.70 0.10 0.28 0.20 ***
20250328 12:18:22 * SSMIS-17 85-92GHz 110.0 -17.31 94.50 -17.27 94.65 0.09 0.26 0.40 100.0
20250328 03:00:00 Metop-C ASCAT 81.2 *** *** *** *** *** *** *** ***
20250328 02:09:00 Metop-A ASCAT 81.6 -16.65 96.53 -16.65 96.45 0.18 0.52 *** ***
20250327 23:44:14 * SSMIS-17 85-92GHz 82.6 -16.65 96.90 -16.65 96.96 0.11 0.30 0.40 96.2
20250327 18:35:32 * AMSR2 85-92GHz 85.0 -16.71 97.84 -16.71 98.04 0.10 0.29 0.70 100.0
20250327 18:35:32 AMSR2 37GHz 85.0 -16.71 97.69 -16.71 97.89 0.12 0.33 0.80 ***
20250327 17:38:26 * GMI 85-92GHz 84.9 -16.70 98.05 -16.70 98.07 0.11 0.31 0.70 100.0
20250327 17:38:26 GMI 37GHz 84.9 -16.70 98.15 -16.70 98.18 0.14 0.40 0.40 ***
20250327 15:00:00 Metop-A ASCAT 83.8 -16.35 98.71 -16.35 98.78 0.16 0.47 *** ***
20250327 11:51:51 * SSMIS-16 85-92GHz 82.4 -16.75 99.09 -16.75 99.14 0.11 0.30 0.30 100.0
20250327 08:58:45 * SSMIS-18 85-92GHz 81.2 -16.90 99.48 -16.90 99.55 0.09 0.26 0.30 100.0
20250326 23:17:33 * SSMIS-16 85-92GHz 74.4 -16.87 101.13 -16.86 101.09 0.11 0.31 0.40 100.0
20250326 14:30:00 Metop-C ASCAT 67.1 -17.44 102.85 -17.44 102.85 0.16 0.46 *** ***
20250326 12:05:01 * SSMIS-16 85-92GHz 65.1 -17.80 102.43 -17.84 102.52 0.11 0.31 0.10 66.3
20250326 11:05:03 SSMIS-17 85-92GHz 64.2 -17.87 102.64 -17.84 102.57 0.16 0.46 2.60 7.6
20250326 09:12:12 SSMIS-18 85-92GHz 62.7 -17.92 103.30 -17.95 103.41 0.13 0.35 0.30 99.1
20250326 06:59:42 * AMSR2 85-92GHz 60.0 -17.78 103.61 -17.78 103.88 0.10 0.28 0.30 100.0
20250326 06:59:42 AMSR2 37GHz 60.0 -17.78 103.93 -17.78 104.19 0.25 0.70 0.30 ***
20250326 04:58:26 * GMI 85-92GHz 59.1 -17.89 104.02 -17.90 103.93 0.07 0.20 0.20 100.0
20250326 04:58:26 GMI 37GHz 59.1 -17.94 104.13 -17.95 104.03 0.18 0.50 0.70 ***
20250325 23:30:58 SSMIS-16 85-92GHz 54.2 -17.74 105.46 -17.74 105.47 0.14 0.40 0.50 78.1
20250325 22:31:29 * SSMIS-17 85-92GHz 52.5 -17.79 105.75 -17.86 105.52 0.12 0.34 0.70 87.8
20250325 20:38:07 * SSMIS-18 85-92GHz 49.4 -17.81 105.97 -17.79 106.01 0.13 0.36 0.70 89.5
20250325 17:28:27 * GMI 85-92GHz 44.6 -17.28 106.59 -17.28 106.59 0.19 0.54 0.10 88.6
20250325 17:28:27 GMI 37GHz 44.6 -17.38 106.85 -17.38 106.85 0.29 0.83 2.70 ***
20250325 11:19:19 * SSMIS-17 85-92GHz 40.0 -17.33 107.84 -17.33 107.81 0.33 0.94 2.80 2.1
20250325 09:26:27 SSMIS-18 85-92GHz 40.2 *** *** *** *** *** *** 3.00 ***
20250325 06:17:04 AMSR2 85-92GHz 40.0 -16.91 108.58 -16.89 108.70 0.35 0.99 0.10 4.4
20250325 06:17:04 * AMSR2 37GHz 40.0 -16.91 108.95 -16.89 109.07 0.20 0.58 0.40 ***
20250325 02:21:00 * Metop-C ASCAT 37.0 -16.69 109.69 -16.69 109.67 0.12 0.35 *** ***
20250325 01:30:00 Metop-A ASCAT 36.2 *** *** *** *** *** *** *** ***
20250324 22:45:06 SSMIS-17 85-92GHz 35.0 -17.19 109.55 -17.20 109.48 0.44 1.24 0.70 2.7
20250324 20:51:55 * SSMIS-18 85-92GHz 35.0 -16.75 109.86 -16.74 109.89 0.26 0.74 0.70 34.9
20250324 18:13:27 GMI 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20250324 18:13:27 GMI 37GHz 35.0 *** *** *** *** *** *** 3.00 ***
20250324 18:04:20 AMSR2 85-92GHz 35.0 -16.45 110.49 -16.45 110.54 0.30 0.84 1.10 12.5
20250324 18:04:20 * AMSR2 37GHz 35.0 -16.85 110.18 -16.85 110.23 0.27 0.76 1.20 ***
20250324 14:21:00 * Metop-A ASCAT 35.0 -16.65 110.90 -16.65 110.89 0.11 0.32 *** ***
20250324 10:51:24 SSMIS-16 85-92GHz 35.0 -16.61 111.26 -16.61 111.20 0.47 1.34 0.70 0.9

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