-- 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
20170806 11:30:00 Geo NearIR 20.2 43.39 156.99 43.39 156.99 1.94 5.49 0.90 ***
20170806 11:30:00 Geo IR 20.2 43.44 156.93 43.44 156.93 3.36 9.49 1.00 3.7
20170806 10:36:00 Metop-B ASCAT 20.6 *** *** *** *** *** *** *** ***
20170806 09:42:00 * Metop-A ASCAT 21.0 42.85 157.51 42.58 157.68 0.25 0.71 *** ***
20170806 08:30:00 Geo NearIR 21.5 42.43 157.91 42.43 157.91 0.94 2.66 0.20 ***
20170806 08:30:00 Geo IR 21.5 42.65 157.84 42.65 157.84 1.25 3.53 0.50 11.2
20170806 07:11:59 SSMIS-18 85-92GHz 22.0 *** *** *** *** *** *** 1.10 ***
20170806 06:56:29 SSMIS-17 85-92GHz 22.1 41.77 158.23 41.44 158.43 0.48 1.37 1.10 1.2
20170806 05:30:00 Geo Vis 22.7 41.56 157.84 41.56 157.84 3.36 9.49 0.10 ***
20170806 05:30:00 Geo NearIR 22.7 41.49 158.70 41.49 158.70 2.59 7.32 0.50 ***
20170806 05:30:00 Geo IR 22.7 41.56 158.27 41.56 158.27 3.36 9.49 1.00 9.3
20170806 03:15:19 SSMI-15 85-92GHz 23.6 40.50 158.89 40.32 159.00 0.32 0.89 0.40 2.8
20170806 02:30:00 * Geo Vis 24.0 40.69 158.81 40.69 158.81 0.28 0.79 0.50 ***
20170806 02:30:00 Geo NearIR 24.0 40.39 158.84 40.39 158.84 0.47 1.33 0.20 ***
20170806 02:30:00 Geo IR 24.0 40.47 158.90 40.47 158.90 0.93 2.62 0.80 12.8
20170806 01:58:59 AMSR2 85-92GHz 24.2 40.19 159.14 40.32 159.07 0.38 1.07 0.20 1.9
20170806 01:58:59 AMSR2 37GHz 24.2 40.49 158.95 40.62 158.87 0.22 0.62 0.70 ***
20170806 00:00:00 * Metop-A ASCAT 25.0 40.00 158.98 39.87 159.06 0.16 0.44 *** ***
20170805 23:30:00 Geo Vis 25.0 39.72 159.09 39.72 159.09 0.39 1.09 0.50 ***
20170805 23:30:00 Geo NearIR 25.0 39.60 158.99 39.60 158.99 0.44 1.25 0.50 ***
20170805 23:30:00 Geo IR 25.0 39.60 158.99 39.60 158.99 0.64 1.81 0.60 8.1
20170805 20:30:00 Geo Vis 25.0 *** *** *** *** *** *** 0.10 ***
20170805 20:30:00 Geo NearIR 25.0 38.86 159.30 38.86 159.30 0.81 2.28 0.20 ***
20170805 20:30:00 Geo IR 25.0 38.91 159.36 38.91 159.36 0.96 2.71 1.00 12.3
20170805 19:46:48 SSMIS-18 85-92GHz 25.0 38.69 159.70 38.89 159.59 0.32 0.91 1.60 3.7
20170805 18:13:02 * SSMIS-16 85-92GHz 25.0 38.37 160.01 38.18 160.12 0.30 0.84 2.70 5.6
20170805 17:30:00 Geo NearIR 25.0 37.98 160.44 37.98 160.44 0.51 1.45 0.80 ***
20170805 17:30:00 Geo IR 25.0 38.00 160.40 38.00 160.40 0.64 1.80 0.80 7.7
20170805 14:54:51 AMSR2 85-92GHz 25.0 37.33 160.60 37.22 160.67 0.34 0.96 2.50 5.5
20170805 14:54:51 * AMSR2 37GHz 25.0 37.08 160.73 36.97 160.80 0.28 0.79 1.40 ***
20170805 14:30:00 Geo NearIR 25.0 36.97 160.77 36.97 160.77 0.40 1.14 0.80 ***
20170805 14:30:00 Geo IR 25.0 36.94 160.83 36.94 160.83 0.38 1.07 1.00 23.6
20170805 11:30:00 Geo NearIR 25.4 35.76 161.44 35.76 161.44 2.95 8.33 1.00 ***
20170805 11:30:00 Geo IR 25.4 35.74 161.47 35.74 161.47 3.36 9.49 0.10 11.4
20170805 10:54:00 * Metop-B ASCAT 25.9 35.90 161.12 36.06 161.04 0.17 0.49 *** ***
20170805 10:00:00 Metop-A ASCAT 26.7 35.65 160.75 35.23 160.94 0.33 0.94 *** ***
20170805 08:30:00 Geo NearIR 27.9 35.08 161.92 35.08 161.92 0.38 1.07 1.00 ***
20170805 08:30:00 Geo IR 27.9 35.03 162.01 35.03 162.01 1.15 3.26 0.80 48.9
20170805 07:22:47 SSMIS-18 85-92GHz 28.9 34.81 162.29 35.13 162.17 0.47 1.34 1.90 4.8
20170805 07:06:55 SSMIS-17 85-92GHz 30.0 34.84 162.40 35.24 162.26 0.41 1.16 2.00 4.9
20170805 05:30:00 Geo Vis 30.4 *** *** *** *** *** *** 0.60 ***
20170805 05:30:00 Geo NearIR 30.4 34.07 162.41 34.07 162.41 1.17 3.30 0.20 ***
20170805 05:30:00 Geo IR 30.4 34.09 162.32 34.09 162.32 1.21 3.42 0.20 48.0
20170805 04:07:42 SSMIS-16 85-92GHz 31.6 33.75 162.78 34.19 162.68 0.44 1.24 2.40 2.8
20170805 02:30:00 Geo Vis 32.9 32.67 162.27 32.67 162.27 0.86 2.42 0.10 ***
20170805 02:30:00 Geo NearIR 32.9 33.47 160.84 33.47 160.84 2.06 5.82 0.10 ***
20170805 02:30:00 Geo IR 32.9 *** *** *** *** *** *** 0.10 ***
20170805 01:16:39 GMI 85-92GHz 33.9 33.28 162.98 33.67 162.93 0.30 0.84 3.00 0.0
20170805 01:16:39 GMI 37GHz 33.9 32.58 162.68 32.97 162.63 0.39 1.09 1.70 ***
20170804 23:36:00 * Metop-B ASCAT 35.3 32.19 162.10 32.16 162.10 0.13 0.38 *** ***
20170804 23:30:00 Geo Vis 35.4 31.56 162.40 31.56 162.40 2.83 7.99 0.10 ***
20170804 23:30:00 Geo NearIR 35.4 31.99 163.23 31.99 163.23 1.17 3.32 0.90 ***
20170804 23:30:00 Geo IR 35.4 31.61 162.99 31.61 162.99 1.64 4.65 0.10 50.7
20170804 22:42:00 * Metop-A ASCAT 36.1 32.20 162.11 32.41 162.11 0.14 0.38 *** ***
20170804 20:30:00 Geo Vis 37.9 30.75 162.58 30.75 162.58 1.28 3.62 0.10 ***
20170804 20:30:00 Geo NearIR 37.9 30.93 162.78 30.93 162.78 1.18 3.32 0.10 ***
20170804 20:30:00 Geo IR 37.9 30.93 163.19 30.93 163.19 2.50 7.08 0.10 49.9
20170804 20:00:49 SSMIS-18 85-92GHz 38.3 31.31 162.81 31.43 162.81 0.26 0.73 3.00 12.5
20170804 19:47:06 * SSMIS-17 85-92GHz 38.5 31.25 162.81 31.43 162.81 0.23 0.66 0.70 14.6
20170804 17:30:00 Geo NearIR 40.0 30.97 163.21 30.97 163.21 0.50 1.42 0.70 ***
20170804 17:30:00 Geo IR 40.0 30.99 163.30 30.99 163.30 0.66 1.86 0.50 50.0
20170804 16:10:02 * SSMI-15 85-92GHz 40.0 30.57 162.75 30.84 162.75 0.42 1.19 2.90 3.5
20170804 14:30:00 Geo NearIR 40.0 29.92 162.84 29.92 162.84 3.00 8.48 0.30 ***
20170804 14:30:00 Geo IR 40.0 29.97 162.84 29.97 162.84 0.80 2.27 0.30 64.3
20170804 11:30:00 Geo NearIR 40.0 29.55 162.84 29.55 162.84 1.03 2.90 0.40 ***
20170804 11:30:00 Geo IR 40.0 29.50 162.69 29.50 162.69 0.78 2.20 0.20 64.5
20170804 08:30:00 * Geo NearIR 40.0 28.97 163.03 28.97 163.03 0.50 1.40 0.30 ***
20170804 08:30:00 Geo IR 40.0 29.37 162.54 29.37 162.54 0.90 2.53 0.10 66.9
20170804 07:33:44 * SSMIS-18 85-92GHz 40.0 28.99 162.96 29.13 162.94 0.27 0.77 2.60 12.6
20170804 07:19:56 SSMIS-17 85-92GHz 40.0 29.05 163.07 29.22 163.05 0.28 0.79 2.40 16.4
20170804 05:30:00 Geo Vis 40.0 29.42 162.39 29.42 162.39 0.55 1.55 0.10 ***
20170804 05:30:00 Geo NearIR 40.0 28.82 162.82 28.82 162.82 1.15 3.26 0.40 ***
20170804 05:30:00 Geo IR 40.0 28.92 162.68 28.92 162.68 2.37 6.71 0.20 48.7
20170804 04:19:32 SSMIS-16 85-92GHz 40.0 28.83 163.13 28.94 163.06 0.35 0.98 1.50 5.6
20170804 03:43:48 SSMI-15 85-92GHz 40.0 28.67 163.00 28.57 163.08 0.54 1.54 2.20 0.9
20170804 02:30:00 Geo Vis 40.0 28.85 162.77 28.85 162.77 0.35 0.98 0.10 ***
20170804 02:30:00 Geo NearIR 40.0 28.50 163.14 28.50 163.14 0.30 0.86 0.80 ***
20170804 02:30:00 Geo IR 40.0 28.57 162.94 28.57 162.94 0.31 0.87 0.80 61.9
20170804 02:08:13 AMSR2 85-92GHz 40.0 28.46 163.03 28.49 163.00 0.37 1.04 0.40 6.0
20170804 02:08:13 AMSR2 37GHz 40.0 28.21 162.40 28.24 162.38 0.27 0.75 2.80 ***
20170803 23:30:00 * Geo Vis 40.0 28.24 162.85 28.24 162.85 0.20 0.58 0.50 ***
20170803 23:30:00 Geo NearIR 40.0 28.02 163.05 28.02 163.05 0.36 1.01 1.00 ***
20170803 23:30:00 Geo IR 40.0 28.12 162.94 28.12 162.94 0.52 1.46 0.80 49.1
20170803 23:03:00 Metop-A ASCAT 40.0 *** *** *** *** *** *** *** ***
20170803 22:18:00 * Metop-B ASCAT 40.0 27.75 162.84 27.81 162.85 0.20 0.56 *** ***
20170803 20:30:00 Geo Vis 40.0 28.10 162.96 28.10 162.96 1.11 3.14 0.20 ***
20170803 20:30:00 Geo NearIR 40.0 27.55 162.48 27.55 162.48 3.36 9.49 0.80 ***
20170803 20:30:00 Geo IR 40.0 27.93 163.19 27.93 163.19 1.53 4.33 0.90 33.0
20170803 20:14:20 SSMIS-18 85-92GHz 40.0 27.97 162.90 27.98 162.91 0.35 0.99 2.70 5.8
20170803 20:01:03 SSMIS-17 85-92GHz 40.0 27.96 162.90 27.98 162.91 0.35 0.99 2.80 6.5
20170803 17:30:00 Geo NearIR 40.0 27.51 162.71 27.51 162.71 3.36 9.49 0.80 ***
20170803 17:30:00 Geo IR 40.0 27.58 162.71 27.58 162.71 3.36 9.49 0.70 3.1
20170803 17:00:50 SSMIS-16 85-92GHz 40.0 27.90 163.41 27.95 163.37 0.32 0.92 1.60 12.3
20170803 16:26:38 SSMI-15 85-92GHz 40.0 27.78 163.25 27.90 163.15 0.48 1.36 1.80 3.5
20170803 15:09:27 AMSR2 85-92GHz 40.0 27.76 163.01 27.68 163.14 0.36 1.03 2.30 6.8
20170803 15:09:27 * AMSR2 37GHz 40.0 27.76 163.18 27.68 163.31 0.21 0.59 1.30 ***
20170803 14:30:00 Geo NearIR 40.0 27.60 163.39 27.60 163.39 0.53 1.49 1.00 ***
20170803 14:30:00 Geo IR 40.0 27.65 163.30 27.65 163.30 0.60 1.70 1.00 60.0
20170803 11:30:00 Geo NearIR 39.6 27.23 163.62 27.23 163.62 2.76 7.81 0.30 ***
20170803 11:30:00 Geo IR 39.6 27.88 162.95 27.88 162.95 1.39 3.92 1.00 2.6
20170803 11:11:39 GMI 85-92GHz 39.3 27.41 163.57 27.40 163.53 0.36 1.02 1.80 4.6
20170803 11:11:39 GMI 37GHz 39.3 27.56 163.57 27.55 163.53 0.19 0.54 1.40 ***
20170803 10:42:00 * Metop-A ASCAT 38.9 27.32 163.56 27.30 163.47 0.13 0.38 *** ***
20170803 10:39:00 Metop-A ASCAT 38.9 27.38 163.57 27.35 163.47 0.14 0.39 *** ***
20170803 09:54:00 * Metop-B ASCAT 38.2 27.46 163.64 27.52 163.78 0.12 0.35 *** ***
20170803 08:30:00 Geo NearIR 37.1 27.15 164.18 27.15 164.18 1.45 4.11 0.50 ***
20170803 08:30:00 Geo IR 37.1 27.07 164.20 27.07 164.20 3.36 9.49 0.50 10.4
20170803 07:45:53 SSMIS-18 85-92GHz 36.5 27.76 163.91 27.72 163.84 0.50 1.42 0.20 1.4
20170803 07:32:58 SSMIS-17 85-92GHz 36.3 27.17 164.10 27.12 164.01 0.31 0.87 1.80 7.0
20170803 05:30:00 Geo Vis 35.0 26.84 164.41 26.84 164.41 1.12 3.16 0.20 ***
20170803 05:30:00 Geo NearIR 35.0 26.96 164.44 26.96 164.44 0.79 2.24 0.80 ***
20170803 05:30:00 Geo IR 35.0 26.96 164.41 26.96 164.41 0.33 0.95 0.80 71.2
20170803 04:31:51 SSMIS-16 85-92GHz 35.0 27.31 163.94 27.45 163.84 0.30 0.85 2.40 10.3
20170803 02:30:00 * Geo Vis 35.0 27.08 164.40 27.08 164.40 0.22 0.63 0.10 ***
20170803 02:30:00 Geo NearIR 35.0 26.71 164.54 26.71 164.54 0.24 0.68 1.00 ***
20170803 02:30:00 Geo IR 35.0 27.01 164.60 27.01 164.60 0.34 0.96 1.00 48.5
20170803 01:21:40 GMI 85-92GHz 35.0 27.16 164.43 27.43 164.31 0.44 1.23 3.00 0.0
20170803 01:21:40 GMI 37GHz 35.0 27.11 164.48 27.38 164.37 0.26 0.75 3.00 ***
20170802 23:30:00 * Geo Vis 35.0 26.56 164.75 26.56 164.75 0.27 0.76 0.10 ***
20170802 23:30:00 Geo NearIR 35.0 26.46 164.87 26.46 164.87 0.44 1.26 0.80 ***
20170802 23:30:00 Geo IR 35.0 26.46 164.67 26.46 164.67 0.38 1.07 0.20 54.2
20170802 23:24:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20170802 20:30:00 Geo Vis 35.0 26.56 165.20 26.56 165.20 0.46 1.30 0.30 ***
20170802 20:30:00 Geo NearIR 35.0 26.61 165.17 26.61 165.17 1.93 5.47 0.70 ***
20170802 20:30:00 Geo IR 35.0 26.46 165.17 26.46 165.17 3.36 9.49 0.30 23.4
20170802 20:14:45 SSMIS-17 85-92GHz 35.0 27.04 164.88 27.01 164.86 0.32 0.91 2.10 8.8
20170802 17:30:00 Geo NearIR 35.0 26.56 165.57 26.56 165.57 0.46 1.31 1.00 ***
20170802 17:30:00 Geo IR 35.0 26.91 165.65 26.91 165.65 0.52 1.46 0.40 55.5
20170802 17:13:52 * SSMIS-16 85-92GHz 35.0 26.79 165.53 26.80 165.51 0.33 0.94 2.00 7.6
20170802 14:30:00 Geo NearIR 35.0 26.60 166.20 26.60 166.20 3.36 9.49 0.70 ***
20170802 14:30:00 Geo IR 35.0 26.75 165.97 26.75 165.97 3.36 9.49 0.10 4.1
20170802 14:26:45 * AMSR2 85-92GHz 35.0 26.11 165.72 26.12 165.72 0.29 0.83 2.10 35.7
20170802 14:26:45 AMSR2 37GHz 35.0 26.01 165.39 26.02 165.38 0.39 1.10 1.60 ***
20170802 11:30:00 Geo NearIR 34.6 *** *** *** *** *** *** 0.20 ***
20170802 11:30:00 Geo IR 34.6 26.13 165.24 26.13 165.24 3.36 9.49 0.40 10.7
20170802 08:30:00 Geo NearIR 32.1 26.86 166.35 26.86 166.35 1.37 3.86 0.10 ***
20170802 08:30:00 Geo IR 32.1 27.01 166.66 27.01 166.66 3.36 9.49 0.10 17.5
20170802 05:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.80 ***
20170802 05:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 0.90 ***
20170802 05:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.20 ***
20170802 04:44:46 * SSMIS-16 85-92GHz 30.0 25.35 165.20 25.38 165.24 0.34 0.97 2.50 5.5
20170802 02:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.10 ***
20170802 02:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 0.50 ***
20170802 02:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.80 ***
20170801 23:30:00 Geo Vis 30.0 25.82 164.29 25.82 164.29 3.36 9.49 0.20 ***
20170801 23:30:00 Geo NearIR 30.0 25.22 164.34 25.22 164.34 1.53 4.32 1.00 ***
20170801 23:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.10 ***
20170801 23:00:00 * Metop-B ASCAT 30.0 25.34 165.19 25.37 165.23 0.18 0.51 *** ***
20170801 22:06:00 Metop-A ASCAT 30.0 25.22 165.17 25.32 165.29 0.21 0.58 *** ***
20170801 20:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.10 ***
20170801 20:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 1.00 ***
20170801 20:30:00 Geo IR 30.0 *** *** *** *** *** *** 1.00 ***
20170801 17:30:00 Geo NearIR 30.0 25.10 163.56 25.10 163.56 2.25 6.37 0.30 ***
20170801 17:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.30 ***
20170801 17:27:32 * SSMIS-16 85-92GHz 30.0 25.35 164.60 25.35 164.61 0.29 0.81 1.60 7.8
20170801 14:30:00 Geo NearIR 30.0 25.26 163.96 25.26 163.96 0.42 1.19 0.30 ***
20170801 14:30:00 Geo IR 30.0 25.21 163.93 25.21 163.93 3.36 9.49 0.60 2.0
20170801 11:30:00 Geo NearIR 29.6 25.56 163.28 25.56 163.28 2.12 5.99 0.10 ***
20170801 11:30:00 Geo IR 29.6 24.76 162.47 24.76 162.47 3.36 9.49 0.70 6.5
20170801 10:36:00 * Metop-B ASCAT 28.8 25.62 163.70 25.55 163.81 0.12 0.34 *** ***
20170801 09:42:00 * Metop-A ASCAT 28.1 25.68 163.54 25.85 163.40 0.13 0.37 *** ***
20170801 08:30:00 Geo NearIR 27.1 25.70 162.79 25.70 162.79 2.75 7.77 0.50 ***
20170801 08:30:00 Geo IR 27.1 *** *** *** *** *** *** 0.60 ***
20170801 05:30:00 * Geo Vis 25.0 26.26 162.93 26.26 162.93 0.31 0.86 0.10 ***
20170801 05:30:00 Geo NearIR 25.0 25.99 162.26 25.99 162.26 3.36 9.49 1.00 ***
20170801 05:30:00 Geo IR 25.0 25.86 161.98 25.86 161.98 3.36 9.49 0.50 4.9
20170801 04:58:06 SSMIS-16 85-92GHz 25.0 25.93 162.92 25.88 162.98 0.38 1.07 2.10 1.9
20170801 02:30:00 Geo Vis 25.0 26.48 162.68 26.48 162.68 0.48 1.35 0.10 ***
20170801 02:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.20 ***
20170801 02:30:00 Geo IR 25.0 28.03 161.90 28.03 161.90 3.36 9.49 0.30 7.1
20170801 01:31:39 * GMI 85-92GHz 25.0 26.21 162.73 26.13 162.85 0.24 0.68 0.80 15.2
20170801 01:31:39 GMI 37GHz 25.0 26.31 162.62 26.23 162.74 0.39 1.11 0.40 ***
20170731 23:30:00 Geo Vis 25.0 26.88 161.93 26.88 161.93 3.00 8.48 0.10 ***
20170731 23:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.20 ***
20170731 23:30:00 Geo IR 25.0 26.48 160.92 26.48 160.92 3.36 9.49 0.50 2.7

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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