-- Link to ARCHER-ERC 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
20170903 05:30:00 Geo Vis 50.3 *** *** *** *** *** *** 0.30 ***
20170903 05:30:00 Geo NearIR 50.3 *** *** *** *** *** *** 0.50 ***
20170903 05:30:00 Geo IR 50.3 *** *** *** *** *** *** 0.40 ***
20170903 04:34:38 SSMIS-16 85-92GHz 50.8 40.21 152.74 40.63 153.08 0.32 0.90 3.00 0.0
20170903 04:13:39 SSMI-15 85-92GHz 51.0 40.10 152.54 40.68 153.01 0.62 1.75 1.00 0.1
20170903 02:30:00 Geo Vis 51.9 39.12 150.80 39.12 150.80 0.43 1.21 0.20 ***
20170903 02:30:00 Geo NearIR 51.9 39.50 151.09 39.50 151.09 0.71 2.02 0.20 ***
20170903 02:30:00 Geo IR 51.9 39.52 151.16 39.52 151.16 3.36 9.49 0.10 5.3
20170903 02:23:38 AMSR2 85-92GHz 52.0 39.12 151.53 39.17 151.57 0.38 1.06 1.70 7.1
20170903 02:23:38 AMSR2 37GHz 52.0 39.22 151.21 39.27 151.25 0.33 0.94 0.20 ***
20170903 00:21:00 * Metop-A ASCAT 53.1 38.54 149.87 38.15 149.54 0.19 0.53 *** ***
20170902 23:36:00 * Metop-B ASCAT 53.6 38.35 149.58 38.30 149.55 0.18 0.52 *** ***
20170902 23:30:00 Geo Vis 53.6 37.63 149.77 37.63 149.77 0.68 1.92 0.30 ***
20170902 23:30:00 Geo NearIR 53.6 37.48 149.55 37.48 149.55 0.71 2.00 0.70 ***
20170902 23:30:00 Geo IR 53.6 37.00 148.63 37.00 148.63 3.36 9.49 0.10 24.5
20170902 20:43:16 * SSMIS-18 85-92GHz 55.0 36.72 149.23 36.61 149.14 0.18 0.51 0.60 59.5
20170902 20:30:00 Geo Vis 55.0 36.49 148.89 36.49 148.89 0.70 1.97 0.30 ***
20170902 20:30:00 Geo NearIR 55.0 36.51 149.17 36.51 149.17 0.34 0.95 0.30 ***
20170902 20:30:00 Geo IR 55.0 36.46 149.20 36.46 149.20 0.74 2.09 0.50 60.1
20170902 18:51:41 SSMIS-16 85-92GHz 55.0 35.98 148.58 35.39 148.10 0.25 0.71 0.50 35.2
20170902 17:30:00 Geo NearIR 55.0 35.19 148.13 35.19 148.13 0.30 0.84 0.10 ***
20170902 17:30:00 Geo IR 55.0 35.19 148.10 35.19 148.10 0.34 0.97 0.10 69.3
20170902 17:16:39 GMI 85-92GHz 55.0 35.46 147.92 35.55 147.99 0.24 0.69 0.30 46.7
20170902 17:16:39 * GMI 37GHz 55.0 35.26 148.04 35.35 148.11 0.12 0.33 0.60 ***
20170902 16:51:21 SSMI-15 85-92GHz 55.0 35.00 147.98 35.25 148.18 0.30 0.86 0.40 12.0
20170902 11:30:00 Geo NearIR 55.4 33.29 146.89 33.29 146.89 1.70 4.82 0.10 ***
20170902 11:30:00 Geo IR 55.4 32.66 146.86 32.66 146.86 3.36 9.49 0.10 54.7
20170902 08:30:00 Geo NearIR 57.9 31.85 146.17 31.85 146.17 0.67 1.88 0.30 ***
20170902 08:30:00 Geo IR 57.9 31.93 146.11 31.93 146.11 0.45 1.27 0.20 91.3
20170902 08:18:09 * SSMIS-18 85-92GHz 58.1 31.75 146.21 31.80 146.26 0.22 0.62 1.00 41.0
20170902 05:30:00 Geo Vis 60.4 31.37 145.39 31.37 145.39 0.56 1.59 0.70 ***
20170902 05:30:00 Geo NearIR 60.4 30.90 145.56 30.90 145.56 1.22 3.45 0.40 ***
20170902 05:30:00 Geo IR 60.4 31.22 145.59 31.22 145.59 2.97 8.41 0.10 47.3
20170902 04:27:24 SSMI-15 85-92GHz 61.3 30.87 145.04 31.26 145.21 0.23 0.66 2.10 13.8
20170902 03:51:40 GMI 85-92GHz 61.8 30.77 145.05 30.22 144.84 0.22 0.61 1.40 18.6
20170902 03:51:40 * GMI 37GHz 61.8 30.87 144.88 30.32 144.67 0.16 0.45 1.10 ***
20170902 02:30:00 Geo Vis 62.9 30.41 144.72 30.41 144.72 0.37 1.06 0.20 ***
20170902 02:30:00 Geo NearIR 62.9 30.06 145.53 30.06 145.53 2.93 8.29 0.20 ***
20170902 02:30:00 Geo IR 62.9 29.98 144.98 29.98 144.98 1.80 5.09 0.20 48.5
20170902 00:45:00 * Metop-A ASCAT 65.0 30.16 144.63 29.91 144.50 0.15 0.42 *** ***
20170901 23:57:00 Metop-B ASCAT 65.0 *** *** *** *** *** *** *** ***
20170901 23:30:00 Geo Vis 65.4 29.52 144.46 29.52 144.46 0.41 1.17 0.10 ***
20170901 23:30:00 Geo NearIR 65.4 29.17 144.43 29.17 144.43 3.36 9.49 0.40 ***
20170901 23:30:00 Geo IR 65.4 29.24 144.40 29.24 144.40 1.53 4.32 0.40 35.0
20170901 20:58:00 SSMIS-18 85-92GHz 67.5 29.39 144.28 29.34 144.25 0.25 0.72 1.70 4.9
20170901 20:30:00 Geo Vis 67.9 28.92 144.30 28.92 144.30 0.28 0.80 0.30 ***
20170901 20:30:00 Geo NearIR 67.9 28.67 144.53 28.67 144.53 0.39 1.12 0.20 ***
20170901 20:30:00 Geo IR 67.9 28.59 144.25 28.59 144.25 0.79 2.25 0.20 66.6
20170901 19:06:55 SSMIS-16 85-92GHz 70.0 28.89 143.92 29.02 144.02 0.20 0.57 1.10 9.8
20170901 18:06:39 GMI 85-92GHz 70.0 28.71 143.85 28.66 143.81 0.16 0.47 1.10 25.4
20170901 18:06:39 * GMI 37GHz 70.0 28.71 143.97 28.66 143.92 0.09 0.27 0.70 ***
20170901 17:30:00 Geo NearIR 70.8 28.44 144.14 28.44 144.14 0.31 0.88 0.50 ***
20170901 17:30:00 Geo IR 70.8 28.44 144.11 28.44 144.11 0.41 1.15 0.50 60.3
20170901 17:09:11 SSMI-15 85-92GHz 71.4 28.71 144.00 28.74 144.02 0.22 0.61 1.00 4.4
20170901 16:17:18 AMSR2 85-92GHz 72.9 28.78 143.65 28.88 143.73 0.18 0.51 1.70 29.3
20170901 16:17:18 * AMSR2 37GHz 72.9 28.48 143.71 28.58 143.79 0.12 0.35 0.60 ***
20170901 14:30:00 Geo NearIR 75.8 28.17 143.54 28.17 143.54 0.34 0.95 0.50 ***
20170901 14:30:00 Geo IR 75.8 28.22 143.52 28.22 143.52 0.31 0.88 0.50 64.1
20170901 11:30:00 * Geo NearIR 80.8 28.13 143.65 28.13 143.65 0.09 0.25 0.90 ***
20170901 11:30:00 Geo IR 80.8 28.18 143.57 28.18 143.57 0.12 0.34 0.90 95.6
20170901 08:30:00 Geo NearIR 85.8 27.65 143.61 27.65 143.61 0.13 0.37 0.50 ***
20170901 08:30:00 Geo IR 85.8 27.67 143.47 27.67 143.47 0.18 0.50 0.60 78.0
20170901 08:29:23 * SSMIS-18 85-92GHz 85.9 27.77 143.67 27.77 143.67 0.13 0.36 0.90 30.4
20170901 06:38:45 SSMIS-16 85-92GHz 88.9 *** *** *** *** *** *** 2.50 ***
20170901 05:30:00 Geo Vis 90.0 27.52 143.08 27.52 143.08 0.24 0.69 1.00 ***
20170901 05:30:00 Geo NearIR 90.0 27.20 143.25 27.20 143.25 0.17 0.47 0.10 ***
20170901 05:30:00 Geo IR 90.0 27.32 143.14 27.32 143.14 0.17 0.48 0.10 72.5
20170901 04:42:50 * SSMI-15 85-92GHz 90.0 27.58 143.12 27.62 143.22 0.13 0.38 1.90 36.5
20170901 04:11:12 AMSR2 85-92GHz 90.0 27.31 142.99 27.37 143.16 0.14 0.39 1.40 60.2
20170901 04:11:12 AMSR2 37GHz 90.0 27.36 143.05 27.42 143.22 0.15 0.42 1.00 ***
20170901 02:30:00 * Geo Vis 90.0 27.29 142.66 27.29 142.66 0.14 0.40 0.20 ***
20170901 02:30:00 Geo NearIR 90.0 27.12 142.77 27.12 142.77 0.22 0.62 0.10 ***
20170901 02:30:00 Geo IR 90.0 27.27 142.69 27.27 142.69 0.27 0.76 0.10 62.6
20170831 23:30:00 * Geo Vis 89.2 27.28 142.24 27.28 142.24 0.17 0.48 0.10 ***
20170831 23:30:00 Geo NearIR 89.2 27.13 142.10 27.13 142.10 0.18 0.50 0.30 ***
20170831 23:30:00 Geo IR 89.2 27.18 142.05 27.18 142.05 0.21 0.60 0.30 99.7
20170831 21:10:43 * SSMIS-18 85-92GHz 85.3 27.34 141.97 27.42 141.91 0.14 0.40 0.80 56.1
20170831 20:30:00 Geo NearIR 84.2 27.30 141.84 27.30 141.84 0.17 0.47 0.10 ***
20170831 20:30:00 Geo IR 84.2 27.40 141.67 27.40 141.67 0.37 1.05 0.30 52.8
20170831 17:30:00 Geo NearIR 79.6 27.50 141.76 27.50 141.76 0.17 0.48 0.20 ***
20170831 17:30:00 Geo IR 79.6 27.55 141.70 27.55 141.70 0.30 0.86 0.20 81.7
20170831 17:25:27 * SSMI-15 85-92GHz 79.5 27.71 141.76 27.70 141.76 0.13 0.36 0.90 73.2
20170831 14:30:00 Geo NearIR 77.1 27.72 141.69 27.72 141.69 0.17 0.49 0.40 ***
20170831 14:30:00 * Geo IR 77.1 27.80 141.55 27.80 141.55 0.16 0.46 0.30 81.8
20170831 11:54:00 Metop-B ASCAT 74.9 *** *** *** *** *** *** *** ***
20170831 11:30:00 Geo NearIR 74.6 27.66 142.02 27.66 142.02 0.23 0.65 0.40 ***
20170831 11:30:00 * Geo IR 74.6 27.71 141.99 27.71 141.99 0.16 0.45 0.30 95.9
20170831 11:00:00 Metop-A ASCAT 74.2 *** *** *** *** *** *** *** ***
20170831 08:41:52 * SSMIS-18 85-92GHz 72.2 27.24 142.18 27.21 142.19 0.13 0.38 0.70 89.8
20170831 08:30:00 Geo Vis 72.1 27.41 142.19 27.41 142.19 0.38 1.08 0.10 ***
20170831 08:30:00 Geo NearIR 72.1 27.26 142.16 27.26 142.16 0.15 0.43 0.60 ***
20170831 08:30:00 Geo IR 72.1 27.34 142.10 27.34 142.10 0.15 0.43 0.20 82.6
20170831 05:30:00 Geo Vis 68.7 27.20 141.75 27.20 141.75 0.17 0.47 0.10 ***
20170831 05:30:00 Geo NearIR 68.7 26.95 141.86 26.95 141.86 0.39 1.09 0.30 ***
20170831 05:30:00 Geo IR 68.7 27.03 141.92 27.03 141.92 0.18 0.50 0.70 100.0
20170831 04:58:18 SSMI-15 85-92GHz 67.4 26.99 141.88 27.06 141.90 0.21 0.60 0.80 39.9
20170831 03:28:07 AMSR2 85-92GHz 63.7 26.83 141.70 26.70 141.60 0.22 0.63 0.80 48.7
20170831 03:28:07 * AMSR2 37GHz 63.7 26.83 141.76 26.70 141.66 0.14 0.40 0.60 ***
20170831 02:30:00 * Geo Vis 61.2 26.96 141.67 26.96 141.67 0.14 0.40 0.60 ***
20170831 02:30:00 Geo NearIR 61.2 26.96 141.53 26.96 141.53 3.36 9.49 0.10 ***
20170831 02:30:00 Geo IR 61.2 27.04 141.45 27.04 141.45 2.58 7.28 0.10 35.9
20170831 00:42:00 Metop-B ASCAT 56.8 26.59 141.62 26.54 141.50 0.15 0.42 *** ***
20170830 23:48:00 * Metop-A ASCAT 55.0 26.64 141.66 26.64 141.63 0.13 0.37 *** ***
20170830 23:30:00 Geo Vis 55.0 26.59 141.58 26.59 141.58 0.19 0.54 0.90 ***
20170830 23:30:00 Geo NearIR 55.0 26.34 141.52 26.34 141.52 0.74 2.09 0.10 ***
20170830 23:30:00 Geo IR 55.0 26.61 141.44 26.61 141.44 0.36 1.01 0.30 62.8
20170830 21:23:26 SSMIS-18 85-92GHz 55.0 26.34 141.22 26.32 141.11 0.15 0.42 1.10 77.3
20170830 20:30:00 Geo NearIR 55.0 26.47 141.38 26.47 141.38 0.83 2.36 0.10 ***
20170830 20:30:00 Geo IR 55.0 26.65 141.10 26.65 141.10 0.27 0.75 0.10 70.7
20170830 18:16:39 * GMI 85-92GHz 55.0 26.20 140.96 26.20 140.96 0.10 0.28 1.00 99.8
20170830 18:16:39 GMI 37GHz 55.0 26.35 141.35 26.35 141.35 0.12 0.33 0.70 ***
20170830 17:41:45 SSMI-15 85-92GHz 55.0 26.40 140.90 26.40 140.91 0.16 0.46 0.40 66.7
20170830 17:30:00 Geo NearIR 55.0 25.18 140.66 25.18 140.66 0.46 1.29 0.10 ***
20170830 17:30:00 Geo IR 55.0 26.63 140.99 26.63 140.99 0.30 0.84 0.10 59.2
20170830 16:30:14 AMSR2 85-92GHz 55.0 26.33 140.80 26.30 140.74 0.28 0.80 0.70 37.0
20170830 16:30:14 * AMSR2 37GHz 55.0 26.48 141.25 26.45 141.19 0.10 0.27 0.90 ***
20170830 14:30:00 Geo NearIR 55.0 25.64 140.59 25.64 140.59 0.94 2.67 0.10 ***
20170830 14:30:00 Geo IR 55.0 26.74 140.79 26.74 140.79 3.36 9.49 0.20 2.4
20170830 12:15:00 Metop-B ASCAT 55.0 26.55 141.30 26.60 141.42 0.16 0.45 *** ***
20170830 11:30:00 Geo NearIR 55.0 *** *** *** *** *** *** 0.80 ***
20170830 11:30:00 Geo IR 55.0 *** *** *** *** *** *** 0.80 ***
20170830 11:21:00 * Metop-A ASCAT 55.0 26.71 141.50 26.70 141.48 0.15 0.42 *** ***
20170830 08:54:16 SSMIS-18 85-92GHz 55.0 26.81 141.82 26.84 141.92 0.27 0.76 1.40 17.0
20170830 08:30:00 Geo NearIR 55.0 *** *** *** *** *** *** 0.30 ***
20170830 08:30:00 Geo IR 55.0 *** *** *** *** *** *** 1.00 ***
20170830 08:18:28 SSMIS-17 85-92GHz 55.0 26.92 142.42 26.90 142.37 0.30 0.85 1.80 9.1
20170830 05:30:00 Geo Vis 55.0 26.41 142.98 26.41 142.98 0.37 1.06 0.20 ***
20170830 05:30:00 Geo NearIR 55.0 26.18 143.18 26.18 143.18 1.94 5.47 0.50 ***
20170830 05:30:00 Geo IR 55.0 25.83 144.50 25.83 144.50 3.36 9.49 0.10 33.5
20170830 05:14:20 SSMI-15 85-92GHz 55.0 26.78 143.09 26.78 143.02 0.32 0.90 1.90 9.2
20170830 04:51:38 GMI 85-92GHz 55.0 26.67 143.07 26.67 142.89 0.30 0.84 2.00 11.6
20170830 04:51:38 * GMI 37GHz 55.0 26.82 143.01 26.82 142.84 0.17 0.47 1.60 ***
20170830 02:30:00 Geo Vis 55.0 26.08 143.41 26.08 143.41 0.50 1.42 0.20 ***
20170830 02:30:00 Geo NearIR 55.0 *** *** *** *** *** *** 0.90 ***
20170830 02:30:00 Geo IR 55.0 *** *** *** *** *** *** 0.90 ***
20170829 23:30:00 * Geo Vis 54.6 26.01 144.45 26.01 144.45 0.28 0.79 0.20 ***
20170829 23:30:00 Geo NearIR 54.6 *** *** *** *** *** *** 0.40 ***
20170829 23:30:00 Geo IR 54.6 *** *** *** *** *** *** 0.30 ***
20170829 21:00:40 SSMIS-17 85-92GHz 52.5 26.03 145.56 25.96 145.65 0.29 0.82 2.80 11.5
20170829 20:30:00 Geo Vis 52.1 *** *** *** *** *** *** 0.70 ***
20170829 20:30:00 Geo NearIR 52.1 27.21 145.66 27.21 145.66 2.81 7.96 0.10 ***
20170829 20:30:00 Geo IR 52.1 26.56 145.82 26.56 145.82 1.31 3.69 0.10 48.8
20170829 18:06:09 * SSMIS-16 85-92GHz 50.0 25.66 146.24 25.53 146.36 0.22 0.61 1.60 32.3
20170829 17:30:00 Geo NearIR 49.6 *** *** *** *** *** *** 0.20 ***
20170829 17:30:00 Geo IR 49.6 26.18 146.35 26.18 146.35 3.36 9.49 0.10 1.4
20170829 15:47:47 AMSR2 85-92GHz 48.2 24.97 146.46 24.44 146.77 0.33 0.92 2.00 8.2
20170829 15:47:47 AMSR2 37GHz 48.2 25.17 146.46 24.64 146.77 0.22 0.61 0.90 ***
20170829 14:30:00 Geo NearIR 47.1 25.50 146.88 25.50 146.88 3.36 9.49 0.10 ***
20170829 14:30:00 Geo IR 47.1 25.55 146.85 25.55 146.85 3.36 9.49 0.10 6.9
20170829 11:42:00 * Metop-A ASCAT 45.0 23.85 146.88 23.80 146.91 0.14 0.38 *** ***
20170829 11:30:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.10 ***
20170829 11:30:00 Geo IR 45.0 *** *** *** *** *** *** 0.20 ***
20170829 10:54:00 * Metop-B ASCAT 45.0 23.75 147.00 23.90 146.90 0.12 0.34 *** ***
20170829 08:30:21 SSMIS-17 85-92GHz 45.0 23.11 147.79 23.11 147.79 0.31 0.86 1.60 17.6
20170829 08:30:00 Geo NearIR 45.0 23.66 148.88 23.66 148.88 3.06 8.65 0.10 ***
20170829 08:30:00 Geo IR 45.0 23.54 148.12 23.54 148.12 0.59 1.68 0.10 99.3
20170829 05:35:20 * SSMIS-16 85-92GHz 44.7 22.38 147.70 22.36 147.70 0.36 1.02 2.00 7.6
20170829 05:30:00 Geo Vis 44.6 *** *** *** *** *** *** 0.10 ***
20170829 05:30:00 Geo NearIR 44.6 *** *** *** *** *** *** 0.20 ***
20170829 05:30:00 Geo IR 44.6 22.59 148.00 22.59 148.00 0.86 2.42 0.20 52.7
20170829 03:38:52 AMSR2 85-92GHz 43.0 22.02 147.59 21.81 147.59 0.52 1.47 3.00 1.4
20170829 03:38:52 * AMSR2 37GHz 43.0 22.32 147.11 22.11 147.11 0.38 1.08 0.30 ***
20170829 02:30:00 Geo Vis 42.1 *** *** *** *** *** *** 0.10 ***
20170829 02:30:00 Geo NearIR 42.1 22.15 148.05 22.15 148.05 2.37 6.69 0.20 ***
20170829 02:30:00 Geo IR 42.1 22.07 148.59 22.07 148.59 3.36 9.49 0.10 6.7
20170828 23:42:00 Metop-B ASCAT 39.8 *** *** *** *** *** *** *** ***
20170828 23:30:00 Geo Vis 39.6 *** *** *** *** *** *** 0.70 ***
20170828 23:30:00 Geo NearIR 39.6 *** *** *** *** *** *** 0.60 ***
20170828 23:30:00 Geo IR 39.6 22.37 148.66 22.37 148.66 3.36 9.49 0.10 11.3
20170828 21:15:15 * SSMIS-17 85-92GHz 37.7 21.11 147.53 21.00 147.42 0.49 1.37 1.90 2.4
20170828 20:30:00 Geo Vis 37.1 *** *** *** *** *** *** 0.10 ***
20170828 20:30:00 Geo NearIR 37.1 *** *** *** *** *** *** 0.30 ***
20170828 20:30:00 Geo IR 37.1 *** *** *** *** *** *** 0.30 ***
20170828 18:26:39 GMI 85-92GHz 35.0 *** *** *** *** *** *** 1.90 ***
20170828 18:26:39 GMI 37GHz 35.0 *** *** *** *** *** *** 2.50 ***
20170828 18:20:09 * SSMIS-16 85-92GHz 35.0 20.44 146.86 20.34 146.76 0.55 1.54 0.50 0.5
20170828 17:30:00 Geo NearIR 34.6 *** *** *** *** *** *** 0.40 ***
20170828 17:30:00 Geo IR 34.6 *** *** *** *** *** *** 0.10 ***
20170828 14:30:00 Geo NearIR 32.1 *** *** *** *** *** *** 0.60 ***
20170828 14:30:00 Geo IR 32.1 *** *** *** *** *** *** 0.40 ***
20170828 11:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 0.30 ***
20170828 11:30:00 Geo IR 30.0 *** *** *** *** *** *** 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

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