-- 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
20200918 12:03:00 Metop-A ASCAT 47.5 *** *** *** *** *** *** *** ***
20200918 11:36:00 * Metop-B ASCAT 47.7 42.96 -31.15 42.92 -31.15 0.20 0.56 *** ***
20200918 10:03:04 SSMIS-17 85-92GHz 48.3 43.71 -31.98 44.00 -31.99 0.39 1.10 3.00 0.0
20200918 07:42:30 SSMIS-16 85-92GHz 49.3 *** *** *** *** *** *** 3.00 ***
20200918 07:18:47 SSMIS-18 85-92GHz 49.5 44.30 -31.93 44.00 -31.91 0.51 1.44 3.00 0.0
20200918 04:36:21 AMSR2 85-92GHz 50.6 *** *** *** *** *** *** 1.80 ***
20200918 04:36:21 AMSR2 37GHz 50.6 *** *** *** *** *** *** 0.70 ***
20200918 01:30:19 * GMI 85-92GHz 51.9 45.73 -32.24 45.49 -32.16 0.31 0.87 3.00 0.0
20200918 01:30:19 GMI 37GHz 51.9 45.68 -32.31 45.44 -32.23 0.37 1.05 3.00 ***
20200917 23:21:00 Metop-B ASCAT 52.8 *** *** *** *** *** *** *** ***
20200917 20:02:57 SSMIS-17 85-92GHz 54.1 *** *** *** *** *** *** 2.00 ***
20200917 18:59:48 SSMIS-18 85-92GHz 54.6 *** *** *** *** *** *** 2.30 ***
20200917 17:41:46 SSMIS-16 85-92GHz 55.3 *** *** *** *** *** *** 0.50 ***
20200917 17:25:19 GMI 85-92GHz 55.5 46.60 -33.72 46.60 -33.67 0.53 1.49 0.20 1.1
20200917 17:25:19 * GMI 37GHz 55.5 46.65 -33.65 46.65 -33.60 0.35 0.99 1.20 ***
20200917 15:01:16 AMSR2 85-92GHz 57.5 46.64 -34.14 46.64 -34.21 0.38 1.09 2.80 7.3
20200917 15:01:16 AMSR2 37GHz 57.5 46.69 -34.14 46.69 -34.21 0.51 1.44 1.00 ***
20200917 12:24:00 Metop-A ASCAT 59.7 *** *** *** *** *** *** *** ***
20200917 11:57:00 * Metop-B ASCAT 60.0 46.97 -34.42 46.97 -34.49 0.22 0.63 *** ***
20200917 10:42:00 * Metop-A ASCAT 61.1 46.86 -34.86 46.87 -34.49 0.16 0.44 *** ***
20200917 10:15:53 SSMIS-17 85-92GHz 61.4 46.51 -35.52 46.52 -34.99 0.41 1.15 2.80 2.5
20200917 07:54:56 * SSMIS-16 85-92GHz 63.4 46.13 -36.91 46.14 -36.59 0.37 1.03 0.80 2.8
20200917 07:30:43 SSMIS-18 85-92GHz 63.7 *** *** *** *** *** *** 3.00 ***
20200917 02:20:18 GMI 85-92GHz 69.6 *** *** *** *** *** *** 3.00 ***
20200917 02:20:18 * GMI 37GHz 69.6 45.40 -37.89 45.44 -37.72 0.23 0.65 1.10 ***
20200916 22:27:00 Metop-A ASCAT 74.4 *** *** *** *** *** *** *** ***
20200916 20:16:25 * SSMIS-17 85-92GHz 77.2 44.15 -41.48 44.23 -41.24 0.18 0.50 2.30 6.3
20200916 19:11:53 SSMIS-18 85-92GHz 78.5 44.56 -41.89 44.31 -42.65 0.17 0.48 1.40 13.6
20200916 18:15:18 GMI 85-92GHz 79.7 44.04 -42.94 43.96 -43.21 0.19 0.52 1.60 3.3
20200916 18:15:18 * GMI 37GHz 79.7 43.74 -42.73 43.66 -43.00 0.16 0.46 0.80 ***
20200916 17:54:24 SSMIS-16 85-92GHz 80.1 44.53 -42.22 44.51 -42.31 0.20 0.56 1.20 1.7
20200916 15:55:52 AMSR2 85-92GHz 81.1 43.76 -43.96 43.50 -44.67 0.17 0.49 1.20 7.9
20200916 15:55:52 * AMSR2 37GHz 81.1 43.86 -44.16 43.60 -44.87 0.16 0.47 0.60 ***
20200916 12:45:00 * Metop-A ASCAT 82.9 42.99 -46.26 42.75 -46.89 0.15 0.43 *** ***
20200916 12:18:00 Metop-B ASCAT 83.2 *** *** *** *** *** *** *** ***
20200916 10:30:31 SSMIS-17 85-92GHz 84.2 42.25 -47.79 42.55 -47.03 0.18 0.50 3.00 0.6
20200916 08:09:10 * SSMIS-16 85-92GHz 85.0 41.70 -49.12 41.84 -48.78 0.16 0.46 2.30 4.2
20200916 04:49:57 * AMSR2 85-92GHz 85.0 40.65 -50.59 40.85 -50.08 0.14 0.41 3.00 0.0
20200916 04:49:57 AMSR2 37GHz 85.0 40.55 -51.12 40.75 -50.61 0.15 0.42 3.00 ***
20200916 03:10:18 GMI 85-92GHz 85.0 *** *** *** *** *** *** 3.00 ***
20200916 03:10:18 GMI 37GHz 85.0 *** *** *** *** *** *** 3.00 ***
20200916 00:03:00 * Metop-B ASCAT 85.0 39.76 -54.04 39.70 -54.18 0.14 0.41 *** ***
20200915 22:48:00 Metop-A ASCAT 85.0 *** *** *** *** *** *** *** ***
20200915 22:09:59 SSMIS-17 85-92GHz 85.0 39.08 -54.28 38.79 -54.85 0.16 0.45 1.10 8.0
20200915 19:48:13 * SSMIS-16 85-92GHz 85.0 38.35 -55.68 38.54 -55.31 0.16 0.45 2.30 4.9
20200915 19:23:45 SSMIS-18 85-92GHz 85.0 *** *** *** *** *** *** 3.00 ***
20200915 19:05:19 GMI 85-92GHz 85.0 *** *** *** *** *** *** 0.40 ***
20200915 19:05:19 GMI 37GHz 85.0 38.55 -56.35 38.29 -56.93 0.16 0.45 0.70 ***
20200915 16:50:09 AMSR2 85-92GHz 86.0 38.37 -56.74 38.54 -56.32 0.16 0.46 0.30 28.6
20200915 16:50:09 * AMSR2 37GHz 86.0 38.12 -57.45 38.29 -57.03 0.14 0.40 0.40 ***
20200915 14:24:00 Metop-B ASCAT 88.0 37.74 -58.67 37.81 -58.50 0.16 0.46 *** ***
20200915 14:21:00 * Metop-B ASCAT 88.0 37.74 -58.69 37.81 -58.50 0.16 0.45 *** ***
20200915 13:06:00 Metop-A ASCAT 90.0 *** *** *** *** *** *** *** ***
20200915 10:45:53 * SSMIS-17 85-92GHz 90.0 37.03 -59.83 37.25 -59.41 0.15 0.43 1.80 31.2
20200915 09:40:37 SSMIS-18 85-92GHz 90.0 36.87 -60.36 36.65 -60.75 0.14 0.40 2.00 42.8
20200915 08:24:10 * SSMIS-16 85-92GHz 90.0 36.46 -60.64 36.55 -60.50 0.14 0.40 1.20 27.5
20200915 05:46:52 AMSR2 85-92GHz 90.0 36.15 -61.83 36.15 -61.84 0.15 0.41 1.70 35.0
20200915 05:46:52 * AMSR2 37GHz 90.0 36.05 -62.02 36.05 -62.03 0.12 0.35 1.00 ***
20200915 00:51:00 Metop-A ASCAT 90.0 *** *** *** *** *** *** *** ***
20200915 00:48:00 * Metop-A ASCAT 90.0 35.21 -63.38 35.00 -63.61 0.16 0.45 *** ***
20200914 22:22:05 * SSMIS-17 85-92GHz 90.0 34.62 -63.74 34.90 -63.44 0.15 0.41 1.50 37.6
20200914 19:59:56 * SSMIS-16 85-92GHz 90.0 34.28 -64.11 34.44 -63.97 0.12 0.34 1.50 82.0
20200914 19:55:19 GMI 85-92GHz 90.0 34.37 -64.26 34.54 -64.11 0.12 0.34 1.50 89.4
20200914 19:55:19 GMI 37GHz 90.0 34.22 -64.32 34.39 -64.17 0.13 0.36 1.00 ***
20200914 17:44:26 AMSR2 85-92GHz 89.8 33.85 -64.49 33.85 -64.49 0.12 0.33 0.50 98.9
20200914 17:44:26 * AMSR2 37GHz 89.8 33.85 -64.61 33.85 -64.61 0.11 0.30 0.40 ***
20200914 14:45:00 * Metop-B ASCAT 87.3 33.25 -64.94 33.25 -64.94 0.13 0.38 *** ***
20200914 13:30:00 Metop-A ASCAT 86.2 32.80 -64.98 33.00 -64.88 0.18 0.50 *** ***
20200914 11:00:43 SSMIS-17 85-92GHz 84.2 32.72 -64.70 32.86 -64.72 0.12 0.34 0.90 85.6
20200914 09:54:46 * SSMIS-18 85-92GHz 83.3 32.52 -64.69 32.30 -64.58 0.10 0.29 0.70 100.0
20200914 08:38:35 * SSMIS-16 85-92GHz 82.2 32.33 -64.51 32.35 -64.52 0.11 0.30 0.70 100.0
20200914 06:43:20 * AMSR2 85-92GHz 80.0 31.97 -64.49 31.80 -64.39 0.11 0.31 0.70 100.0
20200914 06:43:20 AMSR2 37GHz 80.0 32.02 -64.61 31.85 -64.51 0.12 0.34 0.40 ***
20200914 01:09:00 Metop-A ASCAT 75.0 *** *** *** *** *** *** *** ***
20200914 00:45:00 Metop-B ASCAT 75.0 *** *** *** *** *** *** *** ***
20200914 00:42:00 Metop-B ASCAT 75.0 *** *** *** *** *** *** *** ***
20200913 22:34:23 * SSMIS-17 85-92GHz 75.0 30.67 -63.21 30.82 -63.39 0.13 0.35 0.50 94.2
20200913 20:11:56 * SSMIS-16 85-92GHz 75.0 30.24 -62.87 30.30 -62.97 0.13 0.38 0.60 93.3
20200913 17:00:27 AMSR2 85-92GHz 74.2 30.09 -62.24 30.17 -62.38 0.15 0.43 0.80 73.6
20200913 17:00:27 * AMSR2 37GHz 74.2 30.09 -62.24 30.17 -62.38 0.11 0.31 0.50 ***
20200913 13:27:00 Metop-B ASCAT 71.2 29.73 -61.70 29.86 -61.96 0.14 0.38 *** ***
20200913 11:14:40 * SSMIS-17 85-92GHz 69.4 29.63 -61.43 29.68 -61.53 0.12 0.33 0.60 94.3
20200913 08:52:07 SSMIS-16 85-92GHz 67.4 29.48 -60.78 29.47 -60.76 0.17 0.48 0.90 71.2
20200913 06:00:50 AMSR2 85-92GHz 65.0 29.50 -60.26 29.48 -60.21 0.25 0.70 0.20 64.2
20200913 06:00:50 * AMSR2 37GHz 65.0 29.10 -60.26 29.08 -60.21 0.13 0.37 0.70 ***
20200913 05:50:18 GMI 85-92GHz 65.0 29.49 -60.17 29.48 -60.15 0.28 0.78 0.30 52.4
20200913 05:50:18 GMI 37GHz 65.0 29.09 -60.23 29.08 -60.21 0.14 0.40 0.70 ***
20200912 23:48:00 * Metop-A ASCAT 64.8 28.58 -59.06 28.58 -59.05 0.13 0.36 *** ***
20200912 22:47:13 * SSMIS-17 85-92GHz 64.0 28.80 -58.98 28.88 -59.17 0.10 0.28 0.50 100.0
20200912 19:58:59 * SSMIS-18 85-92GHz 61.7 28.54 -58.25 28.60 -58.41 0.16 0.46 0.40 77.9
20200912 13:48:00 * Metop-B ASCAT 60.0 27.19 -56.84 27.37 -57.05 0.15 0.44 *** ***
20200912 08:40:26 * SSMIS-18 85-92GHz 60.0 27.01 -55.98 27.02 -55.99 0.24 0.67 0.70 34.2
20200912 05:18:37 AMSR2 85-92GHz 59.4 26.35 -55.59 26.42 -55.68 0.17 0.48 0.90 100.0
20200912 05:18:37 * AMSR2 37GHz 59.4 26.30 -55.53 26.37 -55.62 0.11 0.31 0.40 ***
20200912 01:21:00 * Metop-B ASCAT 56.1 25.59 -54.45 25.84 -54.74 0.14 0.39 *** ***
20200912 00:06:00 Metop-A ASCAT 55.2 25.17 -54.15 25.10 -54.08 0.19 0.54 *** ***
20200911 20:10:18 SSMIS-18 85-92GHz 55.0 24.34 -53.46 24.46 -53.57 0.43 1.21 1.50 4.8
20200911 19:20:19 GMI 85-92GHz 55.0 24.53 -53.43 24.82 -53.69 0.40 1.12 1.10 8.8
20200911 19:20:19 GMI 37GHz 55.0 24.73 -53.38 25.02 -53.63 0.37 1.05 0.70 ***
20200911 18:54:37 SSMIS-16 85-92GHz 55.0 *** *** *** *** *** *** 3.00 ***
20200911 17:10:42 * AMSR2 85-92GHz 55.0 24.85 -52.90 24.95 -53.04 0.17 0.49 0.60 87.0
20200911 17:10:42 AMSR2 37GHz 55.0 *** *** *** *** *** *** 0.90 ***
20200911 10:01:59 * SSMIS-17 85-92GHz 55.0 23.16 -51.24 23.05 -51.15 0.22 0.62 1.40 45.0
20200911 08:53:49 SSMIS-18 85-92GHz 55.0 22.76 -51.43 22.75 -51.42 0.50 1.42 1.10 2.5
20200911 07:38:40 * SSMIS-16 85-92GHz 55.0 23.26 -50.37 23.35 -50.44 0.20 0.58 1.70 63.4
20200911 06:00:18 GMI 85-92GHz 55.0 22.85 -50.93 22.83 -50.90 0.24 0.66 1.30 20.0
20200911 06:00:18 * GMI 37GHz 55.0 22.60 -51.15 22.58 -51.12 0.19 0.55 0.60 ***
20200911 00:00:00 * Metop-B ASCAT 55.0 22.10 -50.24 22.08 -50.20 0.28 0.80 *** ***
20200910 21:30:16 SSMIS-17 85-92GHz 50.8 21.49 -49.95 21.42 -49.85 0.48 1.35 2.50 3.8
20200910 20:22:20 SSMIS-18 85-92GHz 49.0 21.55 -50.35 21.58 -50.40 0.53 1.51 3.00 0.0
20200910 19:07:05 * SSMIS-16 85-92GHz 46.9 21.40 -49.43 21.27 -49.24 0.41 1.15 2.90 6.8
20200910 16:27:03 AMSR2 85-92GHz 45.0 21.76 -49.39 21.89 -49.60 0.36 1.02 1.50 9.4
20200910 16:27:03 * AMSR2 37GHz 45.0 21.71 -49.17 21.84 -49.39 0.17 0.48 1.10 ***
20200910 12:48:00 Metop-B ASCAT 45.0 *** *** *** *** *** *** *** ***
20200910 11:36:00 * Metop-A ASCAT 45.3 21.17 -48.73 21.18 -48.74 0.12 0.34 *** ***
20200910 10:15:43 SSMIS-17 85-92GHz 46.4 21.40 -48.36 21.54 -48.42 0.31 0.87 1.90 6.3
20200910 07:52:00 SSMIS-16 85-92GHz 48.4 21.08 -48.41 21.15 -48.43 0.48 1.36 2.60 1.4
20200909 23:06:00 * Metop-A ASCAT 50.0 20.39 -47.53 20.42 -47.62 0.11 0.32 *** ***
20200909 21:43:10 SSMIS-17 85-92GHz 50.0 20.28 -47.48 20.23 -47.37 0.51 1.43 2.60 1.8
20200909 19:30:19 GMI 85-92GHz 50.0 20.11 -47.41 20.17 -47.55 0.58 1.64 2.80 0.8
20200909 19:30:19 GMI 37GHz 50.0 20.31 -47.20 20.37 -47.34 0.31 0.89 1.10 ***
20200909 19:19:29 SSMIS-16 85-92GHz 50.0 19.95 -47.33 20.02 -47.49 0.45 1.28 2.80 3.3
20200909 13:09:00 * Metop-B ASCAT 50.0 19.68 -46.25 19.53 -46.06 0.13 0.36 *** ***
20200909 11:57:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20200909 07:38:50 SSMIS-18 85-92GHz 50.0 19.45 -45.15 19.56 -45.32 0.45 1.27 1.30 4.4
20200909 06:15:19 GMI 85-92GHz 50.0 19.26 -45.60 19.24 -45.54 0.44 1.24 1.80 3.5
20200909 06:15:19 * GMI 37GHz 50.0 19.16 -45.23 19.14 -45.17 0.19 0.54 0.40 ***
20200909 04:49:16 AMSR2 85-92GHz 50.0 19.43 -44.79 19.45 -44.91 0.31 0.87 1.00 55.5
20200909 04:49:16 AMSR2 37GHz 50.0 19.28 -45.11 19.30 -45.22 0.31 0.88 0.50 ***
20200909 00:42:00 * Metop-B ASCAT 50.0 18.80 -44.65 18.77 -44.56 0.14 0.39 *** ***
20200908 23:27:00 Metop-A ASCAT 50.5 *** *** *** *** *** *** *** ***
20200908 19:05:13 * SSMIS-18 85-92GHz 55.0 18.42 -44.38 18.32 -44.24 0.45 1.27 2.20 1.5
20200908 16:38:09 * AMSR2 85-92GHz 55.0 18.27 -44.06 18.33 -44.23 0.42 1.19 1.50 4.2
20200908 16:38:09 AMSR2 37GHz 55.0 18.32 -43.96 18.38 -44.13 0.44 1.23 0.40 ***
20200908 11:51:00 Metop-B ASCAT 54.8 *** *** *** *** *** *** *** ***
20200908 07:51:34 * SSMIS-18 85-92GHz 48.1 18.14 -42.54 18.18 -42.59 0.41 1.15 0.50 7.2
20200908 04:06:42 AMSR2 85-92GHz 43.4 17.65 -42.21 17.58 -42.16 0.41 1.15 1.40 8.2
20200908 04:06:42 * AMSR2 37GHz 43.4 17.45 -42.31 17.38 -42.26 0.27 0.77 0.70 ***
20200907 23:48:00 Metop-A ASCAT 39.8 *** *** *** *** *** *** *** ***
20200907 19:40:18 GMI 85-92GHz 36.4 16.97 -42.28 17.03 -42.29 0.41 1.16 1.80 4.6
20200907 19:40:18 GMI 37GHz 36.4 16.92 -42.38 16.98 -42.40 0.58 1.65 0.50 ***
20200907 19:17:17 * SSMIS-18 85-92GHz 36.1 16.80 -42.17 16.88 -42.19 0.37 1.06 1.80 9.4
20200907 15:54:51 AMSR2 85-92GHz 35.5 16.77 -42.60 16.73 -42.55 0.31 0.87 1.70 4.9
20200907 15:54:51 * AMSR2 37GHz 35.5 16.72 -42.39 16.68 -42.34 0.31 0.87 1.10 ***
20200907 12:12:00 * Metop-B ASCAT 35.0 16.95 -42.10 16.95 -42.09 0.18 0.50 *** ***
20200907 10:57:00 Metop-A ASCAT 34.1 16.61 -42.39 16.60 -42.41 0.39 1.09 *** ***
20200907 09:15:40 SSMIS-17 85-92GHz 32.7 16.99 -42.63 17.01 -42.63 0.59 1.68 3.00 0.0
20200907 08:04:33 SSMIS-18 85-92GHz 31.7 17.07 -42.57 17.06 -42.58 0.49 1.39 2.50 1.6
20200907 06:50:54 * SSMIS-16 85-92GHz 30.0 17.18 -42.24 17.18 -42.21 0.31 0.87 0.30 3.2
20200907 06:25:18 GMI 85-92GHz 30.0 17.31 -42.23 17.32 -42.21 0.58 1.63 0.90 0.8
20200907 06:25:18 GMI 37GHz 30.0 16.81 -42.28 16.82 -42.26 0.36 1.03 2.70 ***

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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