-- 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
20201026 23:18:00 Metop-B ASCAT 55.3 *** *** *** *** *** *** *** ***
20201026 22:03:00 Metop-A ASCAT 55.8 56.39 -24.47 55.85 -25.01 2.55 7.21 *** ***
20201026 21:36:00 Metop-B ASCAT 56.0 56.95 -24.83 56.60 -25.19 3.36 9.49 *** ***
20201026 20:24:00 * Metop-A ASCAT 56.5 55.50 -25.35 55.65 -25.19 0.99 2.80 *** ***
20201026 19:49:19 SSMIS-17 85-92GHz 56.7 *** *** *** *** *** *** 3.00 ***
20201026 18:09:05 SSMIS-17 85-92GHz 57.4 *** *** *** *** *** *** 3.00 ***
20201026 17:42:43 SSMIS-16 85-92GHz 57.6 *** *** *** *** *** *** 1.40 ***
20201026 17:32:17 SSMIS-18 85-92GHz 57.7 *** *** *** *** *** *** 1.00 ***
20201026 16:02:07 SSMIS-16 85-92GHz 58.3 *** *** *** *** *** *** 3.00 ***
20201026 13:35:19 GMI 85-92GHz 59.3 *** *** *** *** *** *** 3.00 ***
20201026 13:35:19 GMI 37GHz 59.3 *** *** *** *** *** *** 3.00 ***
20201026 12:15:00 Metop-A ASCAT 59.9 *** *** *** *** *** *** *** ***
20201026 11:48:00 Metop-B ASCAT 60.0 52.32 -30.76 52.30 -30.80 1.74 4.92 *** ***
20201026 10:33:00 * Metop-A ASCAT 60.0 51.53 -31.50 52.00 -30.56 0.47 1.32 *** ***
20201026 09:58:04 SSMIS-17 85-92GHz 60.0 *** *** *** *** *** *** 2.50 ***
20201026 07:51:49 SSMIS-16 85-92GHz 60.0 50.56 -32.31 50.89 -31.42 0.59 1.68 1.80 1.0
20201026 07:41:38 SSMIS-18 85-92GHz 60.0 *** *** *** *** *** *** 1.80 ***
20201026 07:10:19 GMI 85-92GHz 60.0 *** *** *** *** *** *** 1.10 ***
20201026 07:10:19 * GMI 37GHz 60.0 50.34 -33.42 49.80 -34.89 0.33 0.92 0.40 ***
20201025 22:21:00 Metop-A ASCAT 60.0 47.98 -44.27 48.55 -42.98 1.81 5.11 *** ***
20201025 19:24:50 * SSMIS-18 85-92GHz 60.0 45.15 -45.41 45.65 -44.14 0.45 1.27 0.50 3.2
20201025 16:00:18 * GMI 85-92GHz 61.7 44.33 -48.33 43.93 -49.40 0.27 0.77 1.00 8.9
20201025 16:00:18 GMI 37GHz 61.7 44.43 -48.68 44.03 -49.75 0.44 1.23 0.10 ***
20201025 13:51:00 Metop-B ASCAT 63.5 43.82 -50.97 44.09 -50.24 0.28 0.79 *** ***
20201025 12:39:00 Metop-A ASCAT 65.0 *** *** *** *** *** *** *** ***
20201025 10:14:33 * SSMIS-17 85-92GHz 65.0 42.68 -52.76 42.43 -53.66 0.25 0.71 1.70 7.3
20201025 08:07:53 SSMIS-16 85-92GHz 65.0 42.39 -54.15 42.49 -53.79 0.26 0.73 0.70 14.6
20201025 07:55:18 GMI 85-92GHz 65.0 42.34 -54.32 42.48 -53.85 0.22 0.64 0.60 34.1
20201025 07:55:18 * GMI 37GHz 65.0 42.34 -54.59 42.48 -54.13 0.18 0.52 0.20 ***
20201025 00:24:00 * Metop-A ASCAT 65.0 40.56 -57.70 40.37 -57.92 0.16 0.45 *** ***
20201025 00:21:00 * Metop-A ASCAT 65.0 40.55 -57.72 40.37 -57.92 0.16 0.45 *** ***
20201024 23:57:00 Metop-B ASCAT 65.0 *** *** *** *** *** *** *** ***
20201024 21:53:48 SSMIS-17 85-92GHz 66.8 39.68 -58.24 39.29 -58.58 0.20 0.57 0.30 56.2
20201024 19:46:28 SSMIS-16 85-92GHz 68.5 38.67 -58.77 38.99 -58.49 0.20 0.56 0.70 37.1
20201024 19:36:06 * SSMIS-18 85-92GHz 68.7 38.77 -58.82 39.14 -58.49 0.17 0.49 0.60 48.1
20201024 16:55:18 GMI 85-92GHz 70.0 38.08 -59.69 38.29 -59.42 0.15 0.42 0.30 66.7
20201024 16:55:18 * GMI 37GHz 70.0 38.23 -59.75 38.44 -59.49 0.14 0.40 0.50 ***
20201024 14:15:00 * Metop-B ASCAT 70.0 37.34 -60.89 37.45 -60.73 0.12 0.33 *** ***
20201024 09:53:01 * SSMIS-18 85-92GHz 68.2 37.10 -61.70 37.02 -61.91 0.21 0.60 1.30 10.4
20201024 08:22:42 * SSMIS-16 85-92GHz 67.0 36.99 -61.53 37.02 -61.47 0.23 0.65 0.90 9.4
20201024 01:57:00 Metop-B ASCAT 68.4 *** *** *** *** *** *** *** ***
20201024 00:42:00 * Metop-A ASCAT 70.0 35.82 -62.16 35.67 -62.13 0.14 0.39 *** ***
20201023 22:06:20 SSMIS-17 85-92GHz 71.6 35.57 -61.87 35.32 -61.74 0.15 0.43 1.00 82.4
20201023 19:58:30 SSMIS-16 85-92GHz 73.4 35.13 -61.68 35.28 -61.75 0.13 0.38 1.10 83.3
20201023 19:47:57 * SSMIS-18 85-92GHz 73.5 35.15 -61.61 35.33 -61.69 0.11 0.32 1.10 93.1
20201023 17:45:19 GMI 85-92GHz 75.0 34.80 -61.60 34.80 -61.60 0.14 0.39 1.10 79.6
20201023 17:45:19 * GMI 37GHz 75.0 34.80 -61.60 34.80 -61.60 0.11 0.32 0.90 ***
20201023 14:36:00 * Metop-B ASCAT 75.0 34.28 -61.54 34.31 -61.54 0.14 0.39 *** ***
20201023 13:24:00 * Metop-A ASCAT 75.0 33.78 -61.60 34.08 -61.60 0.14 0.41 *** ***
20201023 10:44:21 SSMIS-17 85-92GHz 75.0 33.45 -61.53 33.60 -61.53 0.17 0.47 0.30 59.9
20201023 08:36:52 SSMIS-16 85-92GHz 75.0 33.20 -61.48 33.22 -61.48 0.12 0.34 0.20 84.0
20201023 08:05:19 GMI 85-92GHz 75.0 33.05 -61.48 33.13 -61.48 0.12 0.33 0.30 98.7
20201023 08:05:19 * GMI 37GHz 75.0 33.00 -61.54 33.08 -61.54 0.11 0.31 0.20 ***
20201023 00:36:00 * Metop-B ASCAT 75.0 31.96 -61.63 31.87 -61.61 0.16 0.44 *** ***
20201022 22:18:33 SSMIS-17 85-92GHz 75.0 31.76 -61.44 31.92 -61.48 0.23 0.65 0.20 6.5
20201022 20:10:35 * SSMIS-16 85-92GHz 75.0 31.29 -60.84 31.36 -60.87 0.19 0.53 2.60 29.1
20201022 19:59:35 SSMIS-18 85-92GHz 75.0 31.42 -61.19 31.51 -61.22 0.21 0.58 0.80 7.4
20201022 17:05:51 * AMSR2 85-92GHz 75.8 31.31 -61.22 31.41 -61.24 0.12 0.34 0.20 100.0
20201022 17:05:51 AMSR2 37GHz 75.8 31.21 -61.22 31.31 -61.24 0.16 0.46 0.20 ***
20201022 13:18:00 Metop-B ASCAT 78.9 30.62 -61.29 30.85 -61.31 0.16 0.44 *** ***
20201022 10:58:25 * SSMIS-17 85-92GHz 82.6 30.56 -61.21 30.59 -61.27 0.14 0.39 0.30 80.8
20201022 08:50:16 * SSMIS-16 85-92GHz 87.9 30.20 -61.08 30.20 -61.06 0.16 0.46 2.20 5.1
20201022 08:38:57 SSMIS-18 85-92GHz 88.4 30.29 -60.93 30.30 -60.95 0.16 0.46 0.70 5.8
20201022 06:05:35 AMSR2 85-92GHz 94.8 30.30 -60.68 30.28 -60.67 0.17 0.47 0.20 29.8
20201022 06:05:35 * AMSR2 37GHz 94.8 30.00 -60.91 29.98 -60.90 0.14 0.40 1.10 ***
20201022 00:54:00 * Metop-B ASCAT 99.3 29.72 -60.77 29.64 -60.74 0.13 0.38 *** ***
20201021 23:42:00 * Metop-A ASCAT 100.0 29.49 -60.39 29.49 -60.39 0.13 0.35 *** ***
20201021 22:31:24 SSMIS-17 85-92GHz 100.0 29.42 -60.20 29.45 -60.29 0.12 0.35 0.20 90.5
20201021 20:23:09 * SSMIS-16 85-92GHz 100.0 29.35 -60.13 29.35 -60.18 0.11 0.32 0.20 100.0
20201021 20:11:33 SSMIS-18 85-92GHz 100.0 29.34 -59.99 29.35 -60.07 0.13 0.36 0.20 92.4
20201021 18:00:18 GMI 85-92GHz 100.0 29.35 -59.64 29.34 -59.61 0.13 0.36 0.20 100.0
20201021 18:00:18 * GMI 37GHz 100.0 29.35 -59.64 29.34 -59.61 0.13 0.36 0.20 ***
20201021 12:24:00 * Metop-A ASCAT 81.3 29.02 -58.82 28.99 -58.72 0.12 0.34 *** ***
20201021 11:12:05 * SSMIS-17 85-92GHz 79.3 28.83 -58.75 28.84 -58.84 0.12 0.34 0.30 96.4
20201021 08:51:49 SSMIS-18 85-92GHz 77.4 28.85 -58.38 28.85 -58.37 0.14 0.41 0.20 88.1
20201021 08:15:18 * GMI 85-92GHz 76.9 28.79 -58.23 28.80 -58.31 0.11 0.32 0.20 100.0
20201021 08:15:18 GMI 37GHz 76.9 28.74 -58.23 28.75 -58.31 0.12 0.35 0.20 ***
20201021 05:23:06 * AMSR2 85-92GHz 74.0 28.72 -57.62 28.73 -57.70 0.10 0.28 0.30 100.0
20201021 05:23:06 AMSR2 37GHz 74.0 28.67 -57.62 28.68 -57.70 0.10 0.29 0.20 ***
20201021 01:15:00 * Metop-B ASCAT 67.1 28.03 -56.83 27.87 -56.54 0.15 0.43 *** ***
20201020 20:23:36 * SSMIS-18 85-92GHz 59.0 27.83 -55.98 27.88 -56.02 0.24 0.67 0.40 76.0
20201020 17:16:37 AMSR2 85-92GHz 53.8 27.44 -55.18 27.55 -55.25 0.22 0.62 0.20 74.2
20201020 17:16:37 * AMSR2 37GHz 53.8 27.44 -55.46 27.55 -55.53 0.19 0.54 0.20 ***
20201020 14:00:00 Metop-B ASCAT 48.3 26.58 -55.02 26.79 -55.14 0.19 0.55 *** ***
20201020 12:45:00 * Metop-A ASCAT 46.2 26.28 -55.06 26.11 -55.04 0.14 0.40 *** ***
20201020 09:05:23 * SSMIS-18 85-92GHz 42.6 25.88 -54.75 25.84 -54.77 0.29 0.82 0.50 40.5
20201020 07:36:34 * SSMIS-16 85-92GHz 41.3 25.59 -54.68 25.69 -54.61 0.32 0.91 3.00 0.0
20201020 00:24:00 Metop-A ASCAT 40.0 *** *** *** *** *** *** *** ***
20201020 00:21:00 * Metop-A ASCAT 40.0 24.95 -55.41 24.95 -55.43 0.12 0.33 *** ***
20201019 20:35:40 * SSMIS-18 85-92GHz 40.0 25.47 -55.53 25.45 -55.52 0.22 0.62 0.50 48.7
20201019 19:06:48 SSMIS-16 85-92GHz 40.0 25.51 -55.05 25.57 -55.06 0.27 0.77 0.80 12.2
20201019 16:33:27 * AMSR2 85-92GHz 38.8 25.63 -55.20 25.60 -55.21 0.24 0.69 0.30 30.6
20201019 16:33:27 AMSR2 37GHz 38.8 25.58 -55.64 25.55 -55.66 0.43 1.21 0.20 ***
20201019 05:36:05 * AMSR2 85-92GHz 30.0 25.74 -55.33 25.74 -55.32 0.45 1.26 2.40 5.7
20201019 05:36:05 AMSR2 37GHz 30.0 25.64 -55.72 25.64 -55.71 0.60 1.71 0.90 ***

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

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