-- 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
20230905 01:15:00 * Metop-A ASCAT 40.0 41.92 -57.40 41.56 -56.49 0.71 2.02 *** ***
20230904 21:38:26 SSMIS-17 85-92GHz 41.3 *** *** *** *** *** *** 2.70 ***
20230904 20:02:37 SSMIS-16 85-92GHz 42.2 *** *** *** *** *** *** 3.00 ***
20230904 18:09:37 SSMIS-18 85-92GHz 43.2 *** *** *** *** *** *** 3.00 ***
20230904 13:46:15 GMI 85-92GHz 45.0 40.44 -50.81 40.77 -50.49 0.56 1.58 1.30 1.4
20230904 13:46:15 * GMI 37GHz 45.0 38.99 -52.18 39.32 -51.87 0.45 1.27 2.30 ***
20230904 13:06:00 Metop-C ASCAT 45.0 40.14 -51.82 39.60 -52.09 3.36 9.49 *** ***
20230904 10:13:10 * SSMIS-17 85-92GHz 45.0 38.79 -50.56 38.06 -50.14 0.25 0.71 1.90 6.0
20230904 08:26:28 * SSMIS-18 85-92GHz 45.0 37.70 -50.63 37.86 -50.72 0.33 0.94 0.30 3.4
20230904 00:48:00 * Metop-C ASCAT 45.0 34.12 -51.19 33.72 -51.25 0.22 0.62 *** ***
20230904 00:45:00 Metop-C ASCAT 45.0 34.04 -51.32 33.67 -51.37 0.28 0.78 *** ***
20230903 23:54:00 Metop-A ASCAT 45.0 33.66 -51.33 33.61 -51.34 0.42 1.20 *** ***
20230903 22:46:15 GMI 85-92GHz 45.0 *** *** *** *** *** *** 2.80 ***
20230903 22:46:15 GMI 37GHz 45.0 *** *** *** *** *** *** 0.40 ***
20230903 21:49:32 * SSMIS-17 85-92GHz 45.0 33.07 -51.09 32.73 -51.20 0.28 0.79 0.90 16.3
20230903 20:13:12 SSMIS-16 85-92GHz 45.0 32.48 -51.02 32.64 -50.96 0.35 0.98 0.70 4.6
20230903 16:29:29 AMSR2 85-92GHz 46.3 31.55 -51.82 31.90 -51.62 0.31 0.89 0.40 17.5
20230903 16:29:29 * AMSR2 37GHz 46.3 31.60 -51.76 31.95 -51.56 0.26 0.74 0.20 ***
20230903 12:36:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20230903 10:29:06 SSMIS-17 85-92GHz 50.0 30.31 -52.29 30.57 -52.15 0.50 1.42 1.10 2.7
20230903 08:52:49 * SSMIS-16 85-92GHz 50.0 30.13 -52.56 30.10 -52.58 0.26 0.72 1.00 16.0
20230903 05:29:22 AMSR2 85-92GHz 50.0 29.07 -53.20 29.11 -53.17 0.35 0.98 0.20 49.2
20230903 05:29:22 * AMSR2 37GHz 50.0 29.47 -53.14 29.51 -53.12 0.33 0.93 0.30 ***
20230903 01:06:00 * Metop-C ASCAT 50.0 28.80 -53.59 28.67 -53.68 0.15 0.43 *** ***
20230903 00:12:00 * Metop-A ASCAT 50.0 28.77 -53.70 28.73 -53.73 0.14 0.39 *** ***
20230902 23:41:15 GMI 85-92GHz 49.7 28.57 -53.62 28.58 -53.61 0.30 0.85 0.40 30.0
20230902 23:41:15 * GMI 37GHz 49.7 28.57 -53.50 28.58 -53.50 0.21 0.61 0.40 ***
20230902 22:01:51 SSMIS-17 85-92GHz 48.4 28.34 -54.16 28.27 -54.22 0.40 1.13 0.70 7.6
20230902 20:25:11 * SSMIS-16 85-92GHz 47.0 28.30 -53.95 28.32 -53.94 0.31 0.89 0.50 30.3
20230902 13:56:15 GMI 85-92GHz 45.0 27.86 -54.42 27.96 -54.38 0.21 0.59 1.20 45.3
20230902 13:56:15 GMI 37GHz 45.0 27.96 -54.25 28.06 -54.21 0.41 1.15 0.60 ***
20230902 12:57:00 * Metop-A ASCAT 45.0 27.83 -54.17 27.80 -54.22 0.14 0.40 *** ***
20230902 10:43:34 SSMIS-17 85-92GHz 43.9 27.85 -54.46 27.85 -54.43 0.22 0.63 1.40 28.3
20230902 09:06:42 * SSMIS-16 85-92GHz 42.6 27.85 -54.45 27.85 -54.46 0.23 0.65 1.00 28.7
20230902 01:27:00 Metop-C ASCAT 36.2 *** *** *** *** *** *** *** ***
20230902 00:36:15 GMI 85-92GHz 36.0 *** *** *** *** *** *** 2.50 ***
20230902 00:36:15 GMI 37GHz 36.0 *** *** *** *** *** *** 3.00 ***
20230902 00:33:00 Metop-A ASCAT 35.9 *** *** *** *** *** *** *** ***
20230901 20:38:24 SSMIS-16 85-92GHz 35.0 27.88 -54.48 27.88 -54.49 0.47 1.34 0.70 6.4
20230901 18:45:45 * SSMIS-18 85-92GHz 35.0 27.79 -54.62 27.79 -54.60 0.23 0.64 0.60 48.6
20230901 16:41:01 * AMSR2 85-92GHz 33.9 28.05 -54.86 27.97 -54.85 0.30 0.86 1.00 40.9
20230901 16:41:01 AMSR2 37GHz 33.9 28.05 -54.69 27.97 -54.68 0.34 0.97 0.40 ***
20230901 09:19:37 * SSMIS-16 85-92GHz 30.2 28.85 -54.39 28.85 -54.48 0.39 1.09 0.50 2.4
20230901 07:26:51 * SSMIS-18 85-92GHz 30.0 28.85 -55.01 28.85 -54.82 0.42 1.20 0.30 1.4
20230822 21:06:00 * SSMIS-16 85-92GHz 25.3 17.28 -58.86 17.28 -58.86 0.52 1.47 0.30 3.1
20230822 19:13:37 SSMIS-18 85-92GHz 25.3 17.35 -58.86 17.33 -58.86 0.56 1.59 1.40 0.2
20230822 17:16:14 * GMI 85-92GHz 25.2 17.12 -58.86 17.13 -58.86 0.36 1.03 1.10 5.3
20230822 17:16:14 GMI 37GHz 25.2 *** *** *** *** *** *** 1.80 ***
20230822 09:53:44 * SSMIS-16 85-92GHz 25.1 17.56 -58.29 17.55 -58.29 0.47 1.32 2.20 2.0
20230822 08:00:49 SSMIS-18 85-92GHz 25.0 17.25 -58.40 17.25 -58.40 0.48 1.36 0.60 3.6
20230822 05:08:13 AMSR2 85-92GHz 25.0 17.10 -58.53 17.10 -58.54 0.54 1.54 1.40 3.1
20230822 05:08:13 * AMSR2 37GHz 25.0 16.85 -58.90 16.85 -58.91 0.28 0.79 1.50 ***
20230822 03:56:14 GMI 85-92GHz 25.0 17.10 -58.70 17.10 -58.59 0.47 1.32 1.80 3.8
20230822 03:56:14 * GMI 37GHz 25.0 16.95 -58.90 16.95 -58.80 0.29 0.83 0.70 ***
20230822 01:00:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20230822 00:57:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20230821 21:19:17 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 1.60 ***
20230821 19:26:10 * SSMIS-18 85-92GHz 25.0 16.95 -57.71 16.95 -57.90 0.36 1.02 2.70 6.4
20230821 16:56:04 AMSR2 85-92GHz 26.8 16.86 -57.09 16.88 -57.18 0.37 1.05 2.00 3.7
20230821 16:56:04 AMSR2 37GHz 26.8 16.56 -57.30 16.58 -57.39 0.42 1.19 2.20 ***
20230821 13:48:00 Metop-A ASCAT 32.0 16.10 -57.09 16.14 -57.18 0.18 0.51 *** ***
20230821 13:00:00 * Metop-C ASCAT 33.3 16.38 -56.86 16.34 -56.73 0.13 0.36 *** ***
20230821 08:14:15 SSMIS-18 85-92GHz 35.0 16.20 -55.93 16.21 -55.98 0.48 1.36 2.00 2.3
20230821 01:18:00 * Metop-A ASCAT 31.6 16.33 -55.13 16.36 -55.31 0.19 0.54 *** ***
20230820 21:33:31 * SSMIS-17 85-92GHz 30.0 16.64 -54.76 16.63 -54.62 0.31 0.87 2.20 7.9
20230820 19:39:37 SSMIS-18 85-92GHz 30.0 16.45 -54.78 16.47 -54.98 0.38 1.07 2.20 5.7
20230820 17:26:14 GMI 85-92GHz 30.0 16.45 -54.31 16.45 -54.37 0.30 0.84 1.70 11.7
20230820 17:26:14 * GMI 37GHz 30.0 16.60 -54.26 16.60 -54.32 0.25 0.72 1.40 ***
20230820 13:21:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20230820 10:21:38 * SSMIS-17 85-92GHz 30.0 16.88 -53.00 16.83 -53.17 0.30 0.85 1.10 5.5
20230820 04:06:14 GMI 85-92GHz 30.0 16.78 -51.95 16.84 -51.54 0.35 0.99 2.40 8.3
20230820 04:06:14 * GMI 37GHz 30.0 16.73 -51.95 16.79 -51.54 0.21 0.58 1.40 ***
20230820 00:54:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20230820 00:51:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20230819 21:46:49 * SSMIS-17 85-92GHz 30.0 16.77 -50.71 16.68 -50.53 0.35 1.00 2.40 2.5
20230819 17:07:58 * AMSR2 85-92GHz 30.0 16.52 -49.97 16.57 -50.07 0.32 0.92 0.80 17.0
20230819 17:07:58 AMSR2 37GHz 30.0 16.62 -49.71 16.67 -49.81 0.51 1.43 0.20 ***

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