-- 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
20240131 12:29:17 SSMIS-17 85-92GHz 61.1 -34.54 88.16 -34.23 87.50 0.41 1.15 1.70 5.6
20240131 11:58:59 * SSMIS-16 85-92GHz 61.7 -34.38 87.70 -34.23 87.37 0.37 1.05 1.80 5.2
20240131 10:04:27 SSMIS-18 85-92GHz 63.8 *** *** *** *** *** *** 1.30 ***
20240131 04:21:00 Metop-A ASCAT 68.4 *** *** *** *** *** *** *** ***
20240131 00:04:16 * SSMIS-17 85-92GHz 77.4 -31.36 79.13 -31.28 78.80 0.14 0.39 2.00 49.1
20240130 23:33:44 * SSMIS-16 85-92GHz 78.4 -31.19 79.07 -31.18 79.03 0.14 0.39 2.00 56.6
20240130 17:06:00 * Metop-A ASCAT 90.7 -30.47 75.78 -30.52 75.92 0.23 0.64 *** ***
20240130 16:18:00 Metop-C ASCAT 91.4 -30.42 75.51 -30.57 75.92 0.27 0.75 *** ***
20240130 04:42:00 Metop-A ASCAT 100.5 -28.62 72.17 -28.77 72.34 0.34 0.95 *** ***
20240130 03:54:00 * Metop-C ASCAT 100.9 -28.56 72.10 -28.25 71.79 0.27 0.76 *** ***
20240129 17:27:00 * Metop-A ASCAT 105.0 -26.24 70.69 -26.25 70.69 0.21 0.60 *** ***
20240129 16:39:00 * Metop-C ASCAT 105.0 -26.01 70.80 -26.21 70.80 0.22 0.61 *** ***
20240129 05:00:00 Metop-A ASCAT 105.8 *** *** *** *** *** *** *** ***
20240129 04:15:00 Metop-C ASCAT 106.5 *** *** *** *** *** *** *** ***
20240128 21:48:55 * GMI 85-92GHz 111.8 -22.22 72.38 -22.01 72.67 0.10 0.28 0.40 100.0
20240128 21:48:55 GMI 37GHz 111.8 -22.22 72.43 -22.01 72.72 0.11 0.32 0.20 ***
20240128 13:14:37 * SSMIS-17 85-92GHz 105.1 -20.96 74.52 -21.12 74.18 0.12 0.34 0.20 94.6
20240128 10:48:24 * SSMIS-18 85-92GHz 100.0 -20.78 75.05 -20.86 74.85 0.11 0.30 0.20 100.0
20240128 08:33:51 AMSR2 85-92GHz 95.3 -20.59 75.70 -20.58 75.72 0.10 0.28 0.30 100.0
20240128 08:33:51 AMSR2 37GHz 95.3 -20.54 75.70 -20.53 75.72 0.10 0.29 0.20 ***
20240128 08:23:56 GMI 85-92GHz 95.0 -20.57 75.69 -20.58 75.66 0.10 0.28 0.30 100.0
20240128 08:23:56 * GMI 37GHz 95.0 -20.57 75.75 -20.58 75.72 0.09 0.26 0.20 ***
20240128 04:33:00 Metop-C ASCAT 91.2 -19.98 76.59 -20.06 76.35 0.18 0.50 *** ***
20240128 03:42:00 Metop-A ASCAT 91.9 -20.07 76.97 -19.98 77.27 0.16 0.44 *** ***
20240128 00:42:18 SSMIS-17 85-92GHz 94.4 -19.76 77.78 -19.68 78.09 0.12 0.33 0.40 100.0
20240128 00:10:22 * SSMIS-16 85-92GHz 94.9 -19.72 77.92 -19.68 78.09 0.10 0.29 0.30 100.0
20240127 22:15:52 * SSMIS-18 85-92GHz 96.4 -19.75 78.41 -19.83 78.10 0.11 0.30 0.30 100.0
20240127 22:12:36 SSMIS-18 85-92GHz 96.5 -19.75 78.42 -19.83 78.10 0.11 0.31 0.30 100.0
20240127 16:30:00 * Metop-A ASCAT 100.0 -18.72 79.60 -18.77 79.37 0.21 0.60 *** ***
20240127 15:45:00 Metop-C ASCAT 100.0 *** *** *** *** *** *** *** ***
20240127 15:42:00 Metop-C ASCAT 100.0 *** *** *** *** *** *** *** ***
20240127 12:56:31 * SSMIS-16 85-92GHz 100.0 -19.49 80.41 -19.42 80.72 0.12 0.34 0.30 100.0
20240127 11:01:24 SSMIS-18 85-92GHz 100.0 -19.40 80.82 -19.42 80.71 0.14 0.39 0.30 95.9
20240127 07:51:04 * AMSR2 85-92GHz 100.0 -19.17 81.53 -19.20 81.40 0.09 0.26 0.40 100.0
20240127 07:51:04 AMSR2 37GHz 100.0 -19.12 81.42 -19.15 81.29 0.10 0.28 0.60 ***
20240127 04:03:00 Metop-A ASCAT 100.8 -18.68 82.37 -18.76 82.09 0.16 0.46 *** ***
20240127 04:00:00 Metop-A ASCAT 100.8 -18.68 82.38 -18.60 82.66 0.17 0.47 *** ***
20240127 03:15:00 Metop-C ASCAT 101.1 -18.64 82.57 -18.60 82.71 0.18 0.52 *** ***
20240127 00:55:20 SSMIS-17 85-92GHz 102.1 *** *** *** *** *** *** 0.50 ***
20240127 00:22:57 * SSMIS-16 85-92GHz 103.1 -18.57 82.87 -18.52 83.03 0.11 0.31 0.40 100.0
20240126 22:28:22 SSMIS-18 85-92GHz 103.1 -18.54 83.33 -18.60 83.15 0.10 0.29 0.40 100.0
20240126 22:24:33 * SSMIS-18 85-92GHz 103.2 -18.53 83.29 -18.60 83.09 0.10 0.29 0.40 100.0
20240126 21:38:56 GMI 85-92GHz 103.5 -18.54 83.37 -18.47 83.58 0.09 0.27 0.40 100.0
20240126 21:38:56 GMI 37GHz 103.5 -18.49 83.48 -18.42 83.68 0.12 0.34 0.30 ***
20240126 19:39:43 * AMSR2 85-92GHz 104.3 -18.27 83.84 -18.32 83.69 0.10 0.28 0.60 100.0
20240126 19:39:43 AMSR2 37GHz 104.3 -18.32 83.73 -18.37 83.58 0.10 0.29 0.30 ***
20240125 12:15:37 * SSMIS-17 85-92GHz 85.2 -15.54 89.28 -15.49 89.38 0.10 0.28 0.50 100.0
20240125 09:48:21 * SSMIS-18 85-92GHz 83.2 -15.51 89.65 -15.42 89.82 0.08 0.24 0.60 100.0
20240125 08:58:56 GMI 85-92GHz 82.5 -15.30 89.81 -15.27 89.87 0.10 0.27 0.70 100.0
20240125 08:58:56 GMI 37GHz 82.5 -15.20 89.76 -15.17 89.82 0.10 0.28 0.40 ***
20240125 08:04:14 * AMSR2 85-92GHz 81.7 -15.24 89.87 -15.27 89.81 0.09 0.26 0.70 100.0
20240125 08:04:14 AMSR2 37GHz 81.7 -15.14 89.87 -15.17 89.81 0.10 0.27 0.40 ***
20240125 03:54:00 Metop-C ASCAT 80.0 *** *** *** *** *** *** *** ***
20240125 03:03:00 Metop-A ASCAT 80.0 *** *** *** *** *** *** *** ***
20240125 03:00:00 Metop-A ASCAT 80.0 *** *** *** *** *** *** *** ***
20240124 23:40:30 * SSMIS-17 85-92GHz 80.0 -14.77 90.70 -14.76 90.72 0.16 0.44 0.50 43.5
20240124 23:07:14 SSMIS-16 85-92GHz 80.0 -14.74 90.81 -14.76 90.77 0.13 0.37 0.60 83.9
20240124 21:12:51 * SSMIS-18 85-92GHz 80.0 -14.69 90.92 -14.65 90.97 0.10 0.28 0.50 100.0
20240124 15:54:00 * Metop-A ASCAT 77.4 -14.13 91.05 -14.09 91.05 0.18 0.52 *** ***
20240124 15:06:00 Metop-C ASCAT 76.4 -14.11 91.10 -14.09 91.10 0.22 0.62 *** ***
20240124 12:29:43 * SSMIS-17 85-92GHz 73.1 -14.20 91.20 -14.18 91.20 0.13 0.38 0.50 92.0
20240124 11:56:18 SSMIS-16 85-92GHz 72.4 -14.29 91.10 -14.28 91.10 0.14 0.41 0.40 86.0
20240124 10:01:46 * SSMIS-18 85-92GHz 70.0 -14.15 91.15 -14.18 91.15 0.12 0.34 0.50 96.2
20240124 03:21:00 Metop-A ASCAT 61.7 *** *** *** *** *** *** *** ***
20240124 02:33:00 Metop-C ASCAT 60.7 *** *** *** *** *** *** *** ***
20240123 23:53:56 * SSMIS-17 85-92GHz 57.4 -13.86 91.23 -13.83 91.25 0.12 0.35 0.80 100.0
20240123 23:20:18 * SSMIS-16 85-92GHz 56.7 -13.82 91.41 -13.83 91.40 0.10 0.29 0.90 100.0
20240123 22:08:55 GMI 85-92GHz 55.2 -13.76 91.24 -13.84 91.18 0.12 0.33 0.70 93.8
20240123 22:08:55 * GMI 37GHz 55.2 -13.81 91.35 -13.89 91.28 0.10 0.28 0.60 ***
20240123 21:25:56 SSMIS-18 85-92GHz 54.3 -13.87 91.57 -13.82 91.61 0.11 0.32 1.10 98.0
20240123 12:43:54 * SSMIS-17 85-92GHz 45.6 -13.53 91.39 -13.48 91.40 0.18 0.50 1.10 69.5
20240123 03:42:00 * Metop-A ASCAT 40.0 -12.97 91.48 -12.93 91.46 0.15 0.41 *** ***
20240123 02:54:00 Metop-C ASCAT 40.0 -12.89 91.57 -12.88 91.56 0.16 0.45 *** ***
20240123 00:07:09 * SSMIS-17 85-92GHz 40.0 -12.45 91.66 -12.43 91.64 0.15 0.43 0.90 66.8
20240122 23:33:04 SSMIS-16 85-92GHz 40.0 -12.43 91.54 -12.43 91.54 0.18 0.51 1.10 59.8
20240122 21:38:39 SSMIS-18 85-92GHz 40.0 -12.46 91.65 -12.43 91.63 0.18 0.51 1.10 52.4
20240122 21:35:30 * SSMIS-18 85-92GHz 40.0 -12.46 91.65 -12.43 91.63 0.16 0.46 1.10 64.4
20240122 15:48:00 * Metop-C ASCAT 40.9 -12.43 91.32 -12.39 91.33 0.20 0.58 *** ***
20240122 14:54:00 Metop-A ASCAT 41.3 -12.35 91.43 -12.34 91.44 0.25 0.71 *** ***
20240122 09:28:55 GMI 85-92GHz 43.5 -12.34 91.47 -12.32 91.48 0.32 0.90 1.00 8.1
20240122 09:28:55 * GMI 37GHz 43.5 -12.29 91.47 -12.27 91.48 0.18 0.51 0.50 ***
20240122 07:34:05 AMSR2 85-92GHz 44.3 -12.31 91.48 -12.32 91.47 0.22 0.61 1.20 28.2
20240122 07:34:05 * AMSR2 37GHz 44.3 -12.21 91.48 -12.22 91.47 0.15 0.42 0.60 ***
20240122 00:20:52 SSMIS-17 85-92GHz 47.4 -12.05 91.54 -12.05 91.56 0.20 0.57 1.10 65.8
20240121 23:46:23 * SSMIS-16 85-92GHz 47.6 -12.05 91.61 -12.05 91.61 0.18 0.50 1.10 71.2
20240121 21:52:02 * SSMIS-18 85-92GHz 48.4 -12.00 91.65 -12.00 91.69 0.22 0.61 1.20 56.5
20240121 10:08:55 GMI 85-92GHz 63.1 -11.96 91.91 -12.01 91.86 0.35 0.99 0.60 9.4
20240121 10:08:55 * GMI 37GHz 63.1 -12.11 92.01 -12.16 91.96 0.09 0.26 0.50 ***
20240121 03:36:00 Metop-C ASCAT 70.0 -12.05 92.24 -12.05 92.29 0.22 0.61 *** ***
20240121 02:45:00 * Metop-A ASCAT 70.0 -12.15 92.33 -12.15 92.34 0.16 0.44 *** ***
20240121 02:42:00 Metop-A ASCAT 70.0 -12.10 92.23 -12.10 92.24 0.19 0.53 *** ***
20240120 22:38:55 GMI 85-92GHz 69.1 -11.98 92.31 -11.98 92.27 0.19 0.55 0.70 60.1
20240120 22:38:55 * GMI 37GHz 69.1 -12.13 92.41 -12.13 92.37 0.13 0.36 0.50 ***
20240120 22:05:20 * SSMIS-18 85-92GHz 69.4 -12.04 92.27 -12.04 92.21 0.12 0.35 0.70 96.7
20240120 15:36:00 * Metop-A ASCAT 70.0 -11.84 92.34 -11.89 92.34 0.20 0.57 *** ***
20240120 14:48:00 Metop-C ASCAT 70.0 *** *** *** *** *** *** *** ***
20240120 11:44:08 * SSMIS-17 85-92GHz 70.0 -12.18 92.55 -12.19 92.55 0.15 0.43 0.20 75.9
20240119 23:18:55 GMI 85-92GHz 61.6 -12.17 92.79 -12.16 92.79 0.14 0.39 0.80 92.0
20240119 23:18:55 * GMI 37GHz 61.6 -12.37 92.84 -12.36 92.85 0.09 0.26 0.50 ***
20240119 19:31:31 AMSR2 85-92GHz 56.9 -12.29 92.72 -12.28 92.73 0.23 0.65 0.80 53.5
20240119 19:31:31 * AMSR2 37GHz 56.9 -12.39 92.82 -12.38 92.83 0.11 0.30 0.40 ***
20240119 15:57:00 Metop-A ASCAT 55.9 *** *** *** *** *** *** *** ***
20240119 15:09:00 * Metop-C ASCAT 56.2 -12.72 92.77 -12.70 92.80 0.16 0.45 *** ***
20240119 11:57:53 SSMIS-17 85-92GHz 57.5 -12.33 92.66 -12.31 92.68 0.36 1.02 0.60 17.0
20240119 11:22:13 * SSMIS-16 85-92GHz 57.8 -12.46 92.69 -12.46 92.68 0.21 0.58 0.50 63.0
20240119 09:27:54 SSMIS-18 85-92GHz 58.6 -12.20 92.05 -12.16 92.10 0.20 0.56 2.30 10.7
20240119 07:03:17 AMSR2 85-92GHz 59.6 -12.32 92.96 -12.36 92.90 0.20 0.58 0.20 60.5
20240119 07:03:17 * AMSR2 37GHz 59.6 -12.62 93.12 -12.66 93.05 0.13 0.36 0.60 ***
20240119 03:24:00 * Metop-A ASCAT 56.8 -12.30 92.97 -12.29 92.99 0.15 0.43 *** ***
20240119 02:36:00 Metop-C ASCAT 55.7 -12.34 93.14 -12.34 93.14 0.17 0.49 *** ***
20240118 18:48:23 * AMSR2 85-92GHz 46.0 -12.02 93.28 -11.99 93.32 0.19 0.54 0.80 74.0
20240118 18:48:23 AMSR2 37GHz 46.0 -12.07 93.48 -12.04 93.52 0.20 0.58 0.30 ***
20240118 15:30:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20240118 12:11:37 * SSMIS-17 85-92GHz 45.0 -11.97 93.36 -11.93 93.40 0.31 0.87 1.40 8.1
20240118 11:35:19 SSMIS-16 85-92GHz 45.0 -12.09 93.44 -12.08 93.45 0.34 0.95 1.70 7.8
20240118 10:38:56 GMI 85-92GHz 45.0 -11.88 93.55 -11.94 93.50 0.22 0.62 1.70 28.2
20240118 10:38:56 * GMI 37GHz 45.0 -11.73 93.35 -11.79 93.29 0.20 0.55 0.90 ***
20240118 09:41:17 SSMIS-18 85-92GHz 45.8 -11.90 93.72 -11.81 93.78 0.62 1.75 2.00 0.2
20240117 23:34:22 SSMIS-17 85-92GHz 45.0 -10.48 93.71 -10.48 93.71 0.60 1.68 1.10 0.8
20240117 22:43:36 * SSMIS-16 85-92GHz 45.0 -10.60 93.98 -10.63 93.96 0.23 0.66 1.00 29.1
20240117 21:03:54 * SSMIS-18 85-92GHz 45.0 -10.50 93.96 -10.48 93.97 0.22 0.63 1.10 64.9
20240117 15:51:00 Metop-C ASCAT 45.9 *** *** *** *** *** *** *** ***
20240117 14:57:00 * Metop-A ASCAT 46.3 -10.45 94.00 -10.44 94.00 0.20 0.56 *** ***
20240117 11:49:17 * SSMIS-16 85-92GHz 47.6 -10.58 94.05 -10.57 94.05 0.19 0.54 2.80 36.6
20240117 09:55:05 * SSMIS-18 85-92GHz 48.4 -10.36 94.10 -10.30 94.10 0.26 0.75 2.90 25.2
20240117 03:18:00 * Metop-C ASCAT 48.9 -9.58 94.18 -9.54 94.19 0.14 0.39 *** ***
20240117 02:24:00 Metop-A ASCAT 48.5 *** *** *** *** *** *** *** ***
20240116 23:48:55 * GMI 85-92GHz 47.4 -9.42 94.00 -9.40 94.01 0.25 0.71 1.10 56.9
20240116 23:48:55 GMI 37GHz 47.4 -9.62 94.10 -9.60 94.11 0.26 0.73 0.60 ***
20240116 23:45:54 SSMIS-17 85-92GHz 47.4 -9.42 94.06 -9.40 94.06 0.53 1.51 1.00 2.4
20240116 23:11:07 SSMIS-16 85-92GHz 47.2 -9.29 94.07 -9.31 94.06 0.56 1.58 1.00 2.2
20240116 21:16:57 SSMIS-18 85-92GHz 46.4 -9.50 93.86 -9.46 93.87 0.34 0.95 0.70 5.6
20240116 18:59:51 * AMSR2 85-92GHz 45.0 -9.22 93.88 -9.20 93.88 0.32 0.92 0.30 28.0
20240116 18:59:51 AMSR2 37GHz 45.0 -9.52 94.08 -9.50 94.09 0.55 1.57 0.40 ***
20240116 10:08:45 * SSMIS-18 85-92GHz 41.7 -9.91 93.57 -9.92 93.64 0.32 0.91 1.50 10.9
20240116 03:39:00 Metop-C ASCAT 40.0 -9.81 93.71 -9.82 93.72 0.22 0.61 *** ***
20240116 02:45:00 * Metop-A ASCAT 40.0 -9.72 93.82 -9.72 93.82 0.14 0.40 *** ***
20240116 00:01:13 * SSMIS-17 85-92GHz 40.0 -9.10 93.55 -9.11 93.55 0.18 0.51 1.30 8.6
20240115 21:29:54 SSMIS-18 85-92GHz 40.0 -9.08 93.47 -9.09 93.48 0.42 1.17 0.60 0.3
20240115 21:22:13 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***
20240115 15:42:00 * Metop-A ASCAT 39.0 -9.70 93.95 -9.70 93.94 0.13 0.37 *** ***
20240115 15:39:00 * Metop-A ASCAT 39.0 -9.70 93.95 -9.70 93.94 0.13 0.37 *** ***
20240115 07:28:14 * AMSR2 85-92GHz 35.6 -9.30 93.34 -9.30 93.36 0.40 1.14 0.50 46.1
20240115 07:28:14 AMSR2 37GHz 35.6 -9.25 93.54 -9.25 93.57 0.60 1.69 1.20 ***

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, F-Decks

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