-- 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
20240820 23:27:00 Metop-C ASCAT 50.5 *** *** *** *** *** *** *** ***
20240820 20:20:29 SSMIS-17 85-92GHz 53.0 49.32 -39.00 49.41 -38.60 0.50 1.40 0.60 0.9
20240820 19:39:42 * SSMIS-16 85-92GHz 53.6 49.07 -39.50 49.31 -38.45 0.48 1.36 1.00 0.9
20240820 17:28:20 * SSMIS-18 85-92GHz 55.6 48.63 -41.50 48.69 -41.24 0.57 1.60 2.50 0.4
20240820 12:48:00 Metop-A ASCAT 60.8 *** *** *** *** *** *** *** ***
20240820 10:32:03 SSMIS-17 85-92GHz 63.3 48.07 -49.05 48.37 -48.07 0.41 1.15 2.60 0.8
20240820 09:51:15 * SSMIS-16 85-92GHz 64.1 47.96 -49.39 47.69 -50.07 0.34 0.95 2.50 2.0
20240820 08:38:55 GMI 85-92GHz 65.0 47.62 -50.19 47.64 -50.14 0.32 0.90 2.60 3.4
20240820 08:38:55 * GMI 37GHz 65.0 47.57 -50.56 47.59 -50.51 0.28 0.79 1.50 ***
20240820 07:40:09 SSMIS-18 85-92GHz 65.0 47.35 -50.94 47.59 -50.43 0.40 1.12 2.60 0.4
20240820 05:24:45 AMSR2 85-92GHz 66.0 46.44 -52.30 46.53 -52.11 0.34 0.96 2.40 1.5
20240820 05:24:45 * AMSR2 37GHz 66.0 46.49 -52.44 46.58 -52.26 0.24 0.67 1.30 ***
20240819 23:48:00 * Metop-C ASCAT 75.2 44.54 -55.17 44.52 -55.20 0.16 0.46 *** ***
20240819 21:32:49 SSMIS-16 85-92GHz 77.0 43.29 -55.69 43.03 -56.03 0.20 0.56 0.90 5.8
20240819 19:21:38 * SSMIS-18 85-92GHz 78.9 43.24 -57.15 43.68 -56.58 0.16 0.44 0.20 49.6
20240819 17:28:55 GMI 85-92GHz 80.0 42.68 -57.74 42.77 -57.64 0.15 0.42 0.30 69.6
20240819 17:28:55 GMI 37GHz 80.0 42.68 -58.22 42.77 -58.12 0.16 0.44 0.40 ***
20240819 17:27:37 AMSR2 85-92GHz 80.0 42.63 -57.82 42.72 -57.71 0.14 0.40 0.30 83.4
20240819 17:27:37 * AMSR2 37GHz 80.0 42.68 -58.22 42.77 -58.12 0.14 0.39 0.40 ***
20240819 13:12:00 Metop-A ASCAT 80.0 41.25 -59.66 40.81 -60.09 0.19 0.53 *** ***
20240819 10:48:08 SSMIS-17 85-92GHz 79.0 40.52 -59.95 40.79 -59.69 0.16 0.45 0.30 74.1
20240819 10:06:52 SSMIS-16 85-92GHz 78.4 40.33 -60.01 39.97 -60.37 0.15 0.42 0.30 86.6
20240819 09:18:55 * GMI 85-92GHz 77.8 40.02 -60.29 39.87 -60.44 0.13 0.37 0.40 92.7
20240819 09:18:55 GMI 37GHz 77.8 40.07 -60.42 39.92 -60.57 0.16 0.44 0.30 ***
20240819 07:55:48 SSMIS-18 85-92GHz 76.6 39.76 -60.76 39.97 -60.56 0.15 0.41 0.40 90.7
20240819 06:22:04 * AMSR2 85-92GHz 75.0 39.31 -61.16 39.14 -61.28 0.13 0.37 0.40 100.0
20240819 06:22:04 AMSR2 37GHz 75.0 39.26 -61.23 39.09 -61.35 0.16 0.45 0.30 ***
20240819 01:48:00 * Metop-C ASCAT 71.5 38.20 -62.20 38.45 -62.07 0.14 0.39 *** ***
20240818 22:26:52 SSMIS-17 85-92GHz 68.7 37.33 -62.25 37.64 -62.05 0.14 0.39 0.40 85.6
20240818 21:44:37 * SSMIS-16 85-92GHz 68.1 37.02 -62.17 36.81 -62.31 0.12 0.34 0.40 97.3
20240818 18:08:56 GMI 85-92GHz 65.0 36.33 -62.64 36.26 -62.64 0.13 0.37 0.40 97.9
20240818 18:08:56 * GMI 37GHz 65.0 36.33 -62.64 36.26 -62.64 0.12 0.33 0.30 ***
20240818 16:43:12 AMSR2 85-92GHz 63.9 *** *** *** *** *** *** 1.50 ***
20240818 16:43:12 AMSR2 37GHz 63.9 *** *** *** *** *** *** 0.30 ***
20240818 14:27:00 Metop-C ASCAT 62.0 35.65 -63.01 35.70 -63.01 0.15 0.42 *** ***
20240818 13:33:00 * Metop-A ASCAT 61.3 35.61 -63.07 35.80 -63.07 0.12 0.35 *** ***
20240818 11:03:50 SSMIS-17 85-92GHz 60.0 35.04 -62.95 35.18 -62.93 0.18 0.52 0.50 73.8
20240818 10:22:02 * SSMIS-16 85-92GHz 60.0 35.04 -62.87 35.32 -62.82 0.15 0.43 0.30 73.6
20240818 08:11:12 SSMIS-18 85-92GHz 60.0 34.68 -63.07 34.80 -63.02 0.20 0.56 0.40 51.2
20240818 05:40:42 * AMSR2 85-92GHz 60.0 34.21 -63.06 34.22 -63.05 0.16 0.45 0.30 87.4
20240818 05:40:42 AMSR2 37GHz 60.0 34.06 -63.48 34.07 -63.47 0.19 0.53 0.30 ***
20240817 22:39:39 SSMIS-17 85-92GHz 61.1 33.27 -63.74 33.37 -63.63 0.33 0.93 0.40 17.0
20240817 21:57:05 * SSMIS-16 85-92GHz 61.7 33.01 -63.64 32.91 -63.77 0.26 0.73 0.50 16.5
20240817 19:44:20 SSMIS-18 85-92GHz 63.6 32.98 -64.12 33.06 -64.01 0.18 0.52 0.90 38.0
20240817 18:53:56 GMI 85-92GHz 65.0 32.88 -64.08 32.80 -64.17 0.19 0.54 2.90 25.9
20240817 18:53:56 * GMI 37GHz 65.0 32.98 -64.20 32.90 -64.29 0.13 0.38 0.40 ***
20240817 17:37:33 AMSR2 85-92GHz 65.3 32.72 -64.10 32.73 -64.09 0.24 0.67 1.00 19.6
20240817 17:37:33 * AMSR2 37GHz 65.3 32.77 -64.58 32.78 -64.57 0.17 0.48 0.70 ***
20240817 14:48:00 Metop-C ASCAT 67.7 *** *** *** *** *** *** *** ***
20240817 11:18:33 SSMIS-17 85-92GHz 71.2 32.63 -64.54 32.67 -64.51 0.20 0.56 1.60 13.1
20240817 10:36:18 * SSMIS-16 85-92GHz 72.3 32.67 -64.43 32.76 -64.32 0.15 0.43 1.50 57.9
20240817 09:03:54 GMI 85-92GHz 75.0 *** *** *** *** *** *** 3.00 ***
20240817 09:03:54 GMI 37GHz 75.0 *** *** *** *** *** *** 3.00 ***
20240817 08:25:35 SSMIS-18 85-92GHz 76.0 32.34 -64.67 32.38 -64.63 0.18 0.50 1.50 33.7
20240817 06:36:40 AMSR2 85-92GHz 79.0 32.17 -64.58 32.06 -64.63 0.17 0.47 1.10 58.7
20240817 06:36:40 * AMSR2 37GHz 79.0 31.97 -65.11 31.86 -65.16 0.13 0.37 0.70 ***
20240817 01:36:00 Metop-A ASCAT 83.7 *** *** *** *** *** *** *** ***
20240817 01:33:00 * Metop-A ASCAT 83.7 30.97 -65.24 31.19 -65.20 0.20 0.58 *** ***
20240817 00:48:00 Metop-C ASCAT 83.7 *** *** *** *** *** *** *** ***
20240816 22:09:45 * SSMIS-16 85-92GHz 85.0 30.75 -65.25 30.51 -65.45 0.16 0.45 0.70 27.8
20240816 19:59:14 * SSMIS-18 85-92GHz 85.0 30.31 -65.63 30.43 -65.50 0.12 0.35 0.60 90.4
20240816 19:33:55 * GMI 85-92GHz 85.0 30.32 -65.47 30.52 -65.28 0.13 0.35 0.60 84.1
20240816 19:33:55 GMI 37GHz 85.0 30.42 -65.59 30.62 -65.40 0.15 0.41 0.40 ***
20240816 11:33:42 * SSMIS-17 85-92GHz 85.0 28.86 -66.85 28.90 -66.83 0.15 0.43 0.90 23.9
20240816 10:50:37 SSMIS-16 85-92GHz 85.0 28.70 -67.51 28.89 -67.41 0.15 0.43 2.00 9.6
20240816 09:43:55 GMI 85-92GHz 85.0 28.35 -66.73 28.13 -66.84 0.13 0.37 0.80 69.3
20240816 09:43:55 GMI 37GHz 85.0 28.40 -66.95 28.18 -67.07 0.15 0.44 0.80 ***
20240816 08:40:01 * SSMIS-18 85-92GHz 85.0 28.21 -67.19 28.23 -67.18 0.11 0.32 0.60 84.8
20240816 05:55:02 AMSR2 85-92GHz 85.0 27.59 -67.40 27.56 -67.42 0.13 0.36 0.50 75.5
20240816 05:55:02 * AMSR2 37GHz 85.0 27.69 -67.63 27.66 -67.65 0.13 0.36 0.40 ***
20240816 01:54:00 * Metop-A ASCAT 85.0 26.92 -68.11 27.05 -67.99 0.19 0.52 *** ***
20240816 01:09:00 Metop-C ASCAT 85.0 *** *** *** *** *** *** *** ***
20240816 01:06:00 Metop-C ASCAT 85.0 *** *** *** *** *** *** *** ***
20240815 23:05:42 SSMIS-17 85-92GHz 83.5 *** *** *** *** *** *** 3.00 ***
20240815 22:22:10 * SSMIS-16 85-92GHz 82.3 26.08 -68.45 26.31 -68.24 0.10 0.27 1.20 100.0
20240815 20:18:55 GMI 85-92GHz 78.9 25.84 -68.61 25.91 -68.55 0.11 0.31 1.20 100.0
20240815 20:18:55 GMI 37GHz 78.9 25.84 -69.00 25.91 -68.94 0.13 0.38 0.50 ***
20240815 20:11:30 SSMIS-18 85-92GHz 78.7 25.82 -68.74 25.91 -68.66 0.14 0.39 1.10 80.3
20240815 17:48:00 AMSR2 85-92GHz 75.0 25.22 -68.78 25.21 -68.78 0.13 0.36 1.00 100.0
20240815 17:48:00 * AMSR2 37GHz 75.0 25.42 -69.11 25.41 -69.11 0.12 0.33 1.00 ***
20240815 14:39:00 * Metop-A ASCAT 75.0 24.99 -69.32 25.01 -69.32 0.14 0.39 *** ***
20240815 11:05:19 * SSMIS-16 85-92GHz 75.0 24.33 -69.07 24.46 -69.08 0.17 0.47 1.60 34.2
20240815 10:23:55 GMI 85-92GHz 75.0 *** *** *** *** *** *** 3.00 ***
20240815 10:23:55 GMI 37GHz 75.0 *** *** *** *** *** *** 0.90 ***
20240815 08:54:53 SSMIS-18 85-92GHz 75.0 23.93 -69.39 23.89 -69.39 0.16 0.45 1.40 44.4
20240815 06:51:27 AMSR2 85-92GHz 75.0 23.71 -68.83 23.52 -68.78 0.16 0.45 2.00 77.5
20240815 06:51:27 * AMSR2 37GHz 75.0 23.51 -69.15 23.32 -69.10 0.12 0.33 0.10 ***
20240815 02:15:00 * Metop-A ASCAT 71.9 22.75 -68.90 22.82 -68.94 0.12 0.34 *** ***
20240815 02:12:00 Metop-A ASCAT 71.8 *** *** *** *** *** *** *** ***
20240815 01:27:00 * Metop-C ASCAT 71.2 22.58 -68.88 22.77 -68.98 0.11 0.32 *** ***
20240814 22:34:20 * SSMIS-16 85-92GHz 68.8 22.00 -68.40 22.23 -68.52 0.13 0.37 0.40 93.8
20240814 20:58:56 GMI 85-92GHz 67.5 *** *** *** *** *** *** 3.00 ***
20240814 20:58:56 GMI 37GHz 67.5 *** *** *** *** *** *** 1.50 ***
20240814 20:23:58 SSMIS-18 85-92GHz 67.0 21.27 -68.58 21.35 -68.62 0.35 0.99 1.40 1.6
20240814 13:21:00 Metop-A ASCAT 61.1 *** *** *** *** *** *** *** ***
20240814 10:22:52 * SSMIS-17 85-92GHz 60.0 19.73 -66.86 19.95 -67.11 0.15 0.43 0.30 75.2
20240814 06:09:29 AMSR2 85-92GHz 60.0 18.72 -65.87 18.67 -65.79 0.29 0.83 0.70 61.8
20240814 06:09:29 * AMSR2 37GHz 60.0 18.87 -66.46 18.82 -66.37 0.16 0.45 0.80 ***
20240814 01:45:00 Metop-C ASCAT 56.5 *** *** *** *** *** *** *** ***
20240814 00:51:00 * Metop-A ASCAT 55.0 18.56 -65.08 18.44 -64.85 0.25 0.70 *** ***
20240813 21:49:45 SSMIS-17 85-92GHz 53.2 *** *** *** *** *** *** 2.00 ***
20240813 17:58:04 AMSR2 85-92GHz 49.9 *** *** *** *** *** *** 0.10 ***
20240813 17:58:04 AMSR2 37GHz 49.9 *** *** *** *** *** *** 1.00 ***
20240813 10:37:23 SSMIS-17 85-92GHz 38.9 *** *** *** *** *** *** 2.20 ***
20240813 09:53:18 SSMIS-16 85-92GHz 38.2 *** *** *** *** *** *** 0.50 ***
20240813 07:42:53 * SSMIS-18 85-92GHz 36.4 16.56 -60.91 16.64 -61.17 0.58 1.64 0.50 1.7
20240813 05:27:28 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 0.20 ***
20240813 05:27:28 AMSR2 37GHz 35.0 *** *** *** *** *** *** 0.20 ***
20240813 01:12:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20240812 22:02:45 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 1.00 ***
20240812 21:18:21 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 1.60 ***
20240812 19:07:59 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 1.10 ***
20240812 17:14:18 AMSR2 85-92GHz 33.7 16.09 -56.46 16.12 -56.63 0.57 1.62 0.90 1.3
20240812 17:14:18 * AMSR2 37GHz 33.7 16.69 -57.03 16.72 -57.21 0.33 0.92 2.50 ***

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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