-- 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
20250308 12:21:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20250308 08:31:19 SSMIS-17 85-92GHz 31.9 *** *** *** *** *** *** 3.00 ***
20250308 06:32:28 SSMIS-18 85-92GHz 33.0 *** *** *** *** *** *** 3.00 ***
20250308 06:28:26 * GMI 85-92GHz 33.1 -27.54 153.77 -27.56 153.85 0.40 1.13 3.00 0.0
20250308 06:28:26 GMI 37GHz 33.1 -26.89 152.14 -26.91 152.22 0.51 1.44 2.40 ***
20250307 23:03:00 * Metop-A ASCAT 35.8 -26.64 153.35 -26.62 153.33 0.34 0.96 *** ***
20250307 23:00:00 Metop-A ASCAT 35.8 -26.74 153.30 -26.72 153.27 0.38 1.09 *** ***
20250307 20:38:27 GMI 85-92GHz 37.8 *** *** *** *** *** *** 3.00 ***
20250307 20:38:27 GMI 37GHz 37.8 *** *** *** *** *** *** 3.00 ***
20250307 20:02:56 SSMIS-17 85-92GHz 38.3 -27.28 153.57 -27.26 153.56 0.55 1.55 0.50 1.0
20250307 11:00:00 * Metop-C ASCAT 45.0 -27.31 153.69 -27.31 153.67 0.33 0.92 *** ***
20250307 08:45:19 SSMIS-17 85-92GHz 45.0 *** *** *** *** *** *** 3.00 ***
20250307 07:54:58 * SSMIS-16 85-92GHz 45.0 -27.66 154.26 -27.65 154.22 0.49 1.38 1.60 2.1
20250306 22:33:00 * Metop-C ASCAT 45.6 -27.64 154.58 -27.65 154.53 0.14 0.40 *** ***
20250306 19:26:36 * SSMIS-16 85-92GHz 46.9 -27.50 155.31 -27.54 155.25 0.20 0.58 0.30 46.5
20250306 15:02:07 AMSR2 85-92GHz 48.7 -27.35 154.73 -27.33 154.75 0.42 1.20 0.20 12.3
20250306 15:02:07 * AMSR2 37GHz 48.7 -27.45 155.01 -27.43 155.04 0.28 0.78 0.50 ***
20250306 10:27:00 * Metop-A ASCAT 50.0 -26.85 155.64 -26.85 155.59 0.15 0.43 *** ***
20250306 08:08:42 SSMIS-16 85-92GHz 50.0 -28.00 155.30 -28.00 155.28 0.32 0.91 0.20 6.4
20250306 05:20:34 * SSMIS-18 85-92GHz 50.0 -28.30 155.37 -28.30 155.36 0.16 0.44 3.00 0.0
20250305 22:54:00 Metop-C ASCAT 50.5 *** *** *** *** *** *** *** ***
20250305 22:03:00 * Metop-A ASCAT 50.8 -27.30 155.81 -27.30 155.69 0.12 0.33 *** ***
20250305 20:23:26 GMI 85-92GHz 51.5 -27.15 156.10 -27.15 156.09 0.40 1.14 1.70 3.9
20250305 20:23:26 GMI 37GHz 51.5 -27.85 155.93 -27.85 155.92 0.26 0.74 1.20 ***
20250305 19:39:52 * SSMIS-16 85-92GHz 51.8 -28.30 156.24 -28.30 156.15 0.23 0.66 2.10 4.0
20250305 18:50:06 SSMIS-17 85-92GHz 52.2 -27.45 156.33 -27.45 156.48 0.43 1.20 1.90 6.7
20250305 16:52:23 SSMIS-18 85-92GHz 53.0 -27.20 156.42 -27.20 156.36 0.30 0.84 1.50 5.7
20250305 14:19:15 AMSR2 85-92GHz 55.0 -27.10 156.57 -27.10 156.56 0.20 0.57 2.50 37.7
20250305 14:19:15 AMSR2 37GHz 55.0 -27.05 156.40 -27.05 156.39 0.17 0.49 1.40 ***
20250305 11:42:00 * Metop-C ASCAT 55.0 -27.20 156.53 -27.20 156.53 0.13 0.38 *** ***
20250305 10:48:00 Metop-A ASCAT 55.0 *** *** *** *** *** *** *** ***
20250305 08:22:09 SSMIS-16 85-92GHz 55.0 -27.25 156.69 -27.25 156.69 0.33 0.95 1.90 5.1
20250305 07:32:25 * SSMIS-17 85-92GHz 55.0 -27.07 156.89 -27.05 156.92 0.20 0.57 1.90 16.2
20250305 06:58:27 GMI 85-92GHz 55.0 -27.14 156.76 -27.19 156.70 0.25 0.70 0.30 26.3
20250305 06:58:27 GMI 37GHz 55.0 -27.24 156.81 -27.29 156.76 0.31 0.86 1.20 ***
20250305 05:34:30 SSMIS-18 85-92GHz 55.0 -27.28 156.59 -27.29 156.59 0.25 0.70 1.20 8.2
20250305 03:21:17 AMSR2 85-92GHz 55.0 -27.46 156.29 -27.49 156.26 0.19 0.54 2.00 35.5
20250305 03:21:17 * AMSR2 37GHz 55.0 -27.16 156.23 -27.19 156.21 0.15 0.43 0.80 ***
20250304 23:15:00 * Metop-C ASCAT 55.0 -27.57 156.60 -27.56 156.59 0.12 0.34 *** ***
20250304 21:08:27 GMI 85-92GHz 55.0 -27.71 156.95 -27.73 157.07 0.29 0.83 1.30 15.4
20250304 21:08:27 GMI 37GHz 55.0 -27.71 156.89 -27.73 157.01 0.25 0.70 0.90 ***
20250304 19:53:33 SSMIS-16 85-92GHz 55.0 -27.64 157.25 -27.63 157.12 0.36 1.02 1.70 5.0
20250304 19:04:23 SSMIS-17 85-92GHz 55.0 -28.51 157.66 -28.48 157.35 0.36 1.02 1.50 8.5
20250304 17:05:59 SSMIS-18 85-92GHz 55.0 -28.20 157.80 -28.19 157.70 0.36 1.03 2.10 1.0
20250304 15:14:37 AMSR2 85-92GHz 55.0 -28.23 158.07 -28.24 158.22 0.56 1.58 0.40 0.8
20250304 15:14:37 * AMSR2 37GHz 55.0 -28.33 158.07 -28.34 158.22 0.19 0.53 0.40 ***
20250304 08:35:55 * SSMIS-16 85-92GHz 55.0 -27.83 158.88 -27.83 158.88 0.49 1.39 2.90 0.7
20250304 07:46:36 SSMIS-17 85-92GHz 55.0 -27.70 159.26 -27.73 159.22 0.60 1.69 2.90 0.2
20250304 05:48:16 * SSMIS-18 85-92GHz 55.0 -27.91 159.14 -27.89 159.15 0.54 1.53 2.20 0.9
20250303 22:45:00 * Metop-A ASCAT 54.5 -27.09 159.10 -27.12 159.11 0.11 0.31 *** ***
20250303 21:57:00 Metop-C ASCAT 54.1 *** *** *** *** *** *** *** ***
20250303 19:17:58 SSMIS-17 85-92GHz 53.0 -26.71 159.32 -26.77 159.39 0.61 1.73 2.80 0.2
20250303 17:19:43 * SSMIS-18 85-92GHz 52.2 -26.50 158.77 -26.51 158.78 0.25 0.71 1.90 3.3
20250303 14:31:26 AMSR2 85-92GHz 51.1 -26.51 158.41 -26.51 158.41 0.35 0.99 0.20 3.4
20250303 14:31:26 AMSR2 37GHz 51.1 -27.11 158.80 -27.11 158.80 0.34 0.97 1.10 ***
20250303 11:30:00 * Metop-A ASCAT 50.0 -26.73 158.34 -26.73 158.34 0.16 0.45 *** ***
20250303 10:45:00 Metop-C ASCAT 50.0 *** *** *** *** *** *** *** ***
20250303 08:00:48 SSMIS-17 85-92GHz 50.0 -26.37 157.83 -26.40 157.87 0.34 0.96 2.50 2.0
20250303 06:02:35 * SSMIS-18 85-92GHz 50.0 -26.27 157.60 -26.23 157.55 0.25 0.72 2.70 4.4
20250303 03:33:45 * AMSR2 85-92GHz 50.3 -26.74 158.27 -26.65 158.18 0.27 0.77 0.10 28.4
20250303 03:33:45 AMSR2 37GHz 50.3 -26.04 157.60 -25.95 157.51 0.37 1.05 0.90 ***
20250302 23:06:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20250302 23:03:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20250302 22:15:00 * Metop-C ASCAT 50.0 -25.64 157.06 -25.76 157.17 0.14 0.39 *** ***
20250302 19:31:39 SSMIS-17 85-92GHz 50.0 -25.80 157.55 -25.91 157.63 0.22 0.61 2.30 18.9
20250302 17:33:10 * SSMIS-18 85-92GHz 50.0 -25.49 156.98 -25.48 156.98 0.23 0.64 0.30 49.6
20250302 11:03:00 * Metop-C ASCAT 50.4 -24.36 156.19 -24.40 156.22 0.14 0.40 *** ***
20250302 08:15:43 * SSMIS-17 85-92GHz 51.6 -24.88 156.05 -24.91 156.07 0.26 0.75 1.50 34.9
20250302 06:17:16 SSMIS-18 85-92GHz 52.4 -24.09 156.18 -24.02 156.13 0.40 1.14 2.70 6.2
20250301 22:36:00 Metop-C ASCAT 56.8 *** *** *** *** *** *** *** ***
20250301 21:38:27 GMI 85-92GHz 57.9 -22.81 155.47 -22.74 155.45 0.47 1.33 2.90 0.9
20250301 21:38:27 * GMI 37GHz 57.9 -23.51 155.96 -23.44 155.94 0.27 0.77 1.60 ***
20250301 19:45:19 SSMIS-17 85-92GHz 60.3 -22.56 155.44 -22.60 155.45 0.36 1.01 2.70 1.8
20250301 17:46:33 SSMIS-18 85-92GHz 62.8 -22.55 155.32 -22.54 155.31 0.36 1.02 3.00 1.2
20250301 14:42:41 AMSR2 85-92GHz 66.6 *** *** *** *** *** *** 0.10 ***
20250301 14:42:41 * AMSR2 37GHz 66.6 -23.18 156.06 -23.16 156.06 0.25 0.69 2.80 ***
20250301 10:30:00 * Metop-A ASCAT 74.4 -22.08 155.42 -22.16 155.40 0.18 0.52 *** ***
20250301 08:30:30 * SSMIS-17 85-92GHz 80.2 -23.66 156.29 -23.66 156.29 0.13 0.38 3.00 0.0
20250301 08:13:26 GMI 85-92GHz 81.0 -22.89 155.76 -22.91 155.75 0.16 0.46 0.10 28.8
20250301 08:13:26 GMI 37GHz 81.0 -21.99 155.33 -22.01 155.32 0.14 0.39 0.60 ***
20250301 03:47:15 * AMSR2 85-92GHz 94.0 -22.47 155.71 -22.34 155.76 0.15 0.42 1.60 4.2
20250301 03:47:15 AMSR2 37GHz 94.0 -22.12 155.60 -21.99 155.65 0.17 0.47 2.50 ***
20250228 22:06:00 * Metop-A ASCAT 105.0 -21.09 155.53 -21.23 155.53 0.20 0.55 *** ***
20250228 22:03:00 Metop-A ASCAT 105.0 -21.04 155.53 -21.18 155.53 0.20 0.55 *** ***
20250228 19:58:56 * SSMIS-17 85-92GHz 105.0 -21.79 155.62 -21.84 155.63 0.11 0.31 2.40 22.6
20250228 11:45:00 * Metop-C ASCAT 105.0 -20.08 155.43 -20.05 155.43 0.20 0.56 *** ***
20250228 08:58:26 * GMI 85-92GHz 105.0 -20.32 155.62 -20.27 155.60 0.12 0.33 0.60 100.0
20250228 08:58:26 GMI 37GHz 105.0 -20.17 155.56 -20.12 155.55 0.13 0.35 0.30 ***
20250228 07:51:38 SSMIS-16 85-92GHz 105.0 -20.25 155.75 -20.32 155.77 0.13 0.36 0.60 99.4
20250228 03:04:58 * AMSR2 85-92GHz 105.0 -19.76 155.66 -19.69 155.65 0.11 0.31 0.60 100.0
20250228 03:04:58 AMSR2 37GHz 105.0 -19.61 155.50 -19.54 155.49 0.14 0.38 0.30 ***
20250227 23:18:00 * Metop-C ASCAT 105.6 -18.98 155.40 -19.00 155.40 0.20 0.58 *** ***
20250227 19:18:34 * SSMIS-16 85-92GHz 108.9 -18.76 155.75 -18.89 155.72 0.11 0.30 0.80 100.0
20250227 14:53:34 * AMSR2 85-92GHz 112.6 -18.21 155.47 -18.16 155.47 0.11 0.30 0.90 100.0
20250227 14:53:34 AMSR2 37GHz 112.6 -18.21 155.41 -18.16 155.42 0.13 0.36 0.70 ***
20250227 11:15:00 * Metop-A ASCAT 113.8 -17.43 155.38 -17.45 155.38 0.19 0.55 *** ***
20250227 08:06:01 * SSMIS-16 85-92GHz 108.5 -17.79 155.42 -17.82 155.43 0.11 0.31 0.90 100.0
20250227 05:19:34 * SSMIS-18 85-92GHz 103.9 -17.54 155.37 -17.55 155.37 0.12 0.35 0.20 84.2
20250226 22:08:26 * GMI 85-92GHz 93.5 -16.56 155.30 -16.70 155.30 0.10 0.29 1.60 100.0
20250226 22:08:26 GMI 37GHz 93.5 -16.61 155.19 -16.75 155.19 0.13 0.38 0.50 ***
20250226 19:31:36 * SSMIS-16 85-92GHz 91.3 -16.28 155.30 -16.38 155.30 0.10 0.29 1.50 100.0
20250226 11:36:00 Metop-A ASCAT 84.7 *** *** *** *** *** *** *** ***
20250226 10:48:00 * Metop-C ASCAT 84.0 -15.41 155.36 -15.46 155.37 0.14 0.40 *** ***
20250226 08:20:06 * SSMIS-16 85-92GHz 81.9 -15.59 154.99 -15.60 155.00 0.11 0.30 1.10 90.1
20250226 07:33:37 SSMIS-17 85-92GHz 81.3 -15.35 155.01 -15.40 155.05 0.13 0.36 0.90 70.4
20250226 05:34:09 SSMIS-18 85-92GHz 79.6 -15.33 154.82 -15.33 154.82 0.16 0.44 0.30 66.2
20250226 03:18:29 * AMSR2 85-92GHz 77.8 -15.11 154.85 -15.07 154.82 0.13 0.36 1.10 85.8
20250226 03:18:29 AMSR2 37GHz 77.8 -15.06 155.05 -15.02 155.02 0.14 0.39 0.20 ***
20250225 23:03:00 Metop-A ASCAT 75.0 -14.55 155.05 -14.57 155.05 0.13 0.36 *** ***
20250225 22:53:26 * GMI 85-92GHz 75.0 -14.74 155.00 -14.77 155.00 0.09 0.26 1.00 100.0
20250225 22:53:26 GMI 37GHz 75.0 -14.79 155.21 -14.82 155.21 0.14 0.39 0.90 ***
20250225 19:44:43 SSMIS-16 85-92GHz 75.0 -14.91 154.72 -14.95 154.71 0.17 0.49 1.30 24.4
20250225 16:58:49 * SSMIS-18 85-92GHz 75.0 -14.47 154.91 -14.50 154.90 0.20 0.56 0.50 39.8
20250225 11:12:00 Metop-C ASCAT 74.3 *** *** *** *** *** *** *** ***
20250225 11:09:00 Metop-C ASCAT 74.3 *** *** *** *** *** *** *** ***
20250225 09:28:27 GMI 85-92GHz 72.9 -14.11 154.52 -14.12 154.46 0.19 0.55 0.10 57.1
20250225 09:28:27 * GMI 37GHz 72.9 -14.31 154.98 -14.32 154.93 0.09 0.24 0.50 ***
20250225 08:34:01 SSMIS-16 85-92GHz 72.1 -14.57 154.72 -14.57 154.72 0.18 0.51 0.80 57.5
20250225 07:47:20 SSMIS-17 85-92GHz 71.5 -14.48 154.21 -14.47 154.25 0.22 0.61 0.20 27.6
20250225 05:47:56 * SSMIS-18 85-92GHz 69.8 -14.50 153.96 -14.51 153.94 0.16 0.45 2.80 1.1
20250224 22:39:00 * Metop-C ASCAT 65.0 -13.92 154.55 -13.93 154.55 0.16 0.46 *** ***
20250224 19:58:04 SSMIS-16 85-92GHz 65.0 -13.99 154.55 -14.03 154.55 0.19 0.54 0.50 76.9
20250224 19:12:29 * SSMIS-17 85-92GHz 65.0 -14.19 154.40 -14.28 154.40 0.11 0.31 0.70 89.5
20250224 17:12:35 * SSMIS-18 85-92GHz 65.0 -14.02 154.55 -14.04 154.55 0.11 0.31 0.60 100.0
20250224 11:30:00 Metop-C ASCAT 64.8 *** *** *** *** *** *** *** ***
20250224 10:36:00 Metop-A ASCAT 64.4 -13.85 154.55 -13.85 154.56 0.16 0.46 *** ***
20250224 10:13:27 GMI 85-92GHz 64.3 -13.81 154.18 -13.80 154.19 0.14 0.40 0.50 96.4
20250224 10:13:27 * GMI 37GHz 64.3 -13.96 154.54 -13.95 154.55 0.10 0.29 0.20 ***
20250224 08:02:00 SSMIS-17 85-92GHz 63.3 -13.68 154.31 -13.67 154.32 0.13 0.37 0.30 90.4
20250224 06:02:06 SSMIS-18 85-92GHz 62.5 -13.76 153.98 -13.77 153.95 0.17 0.49 0.20 63.8
20250224 03:30:57 AMSR2 85-92GHz 61.5 -13.86 153.87 -13.89 153.81 0.20 0.57 0.50 84.3
20250224 03:30:57 * AMSR2 37GHz 61.5 -13.76 154.13 -13.79 154.07 0.11 0.31 0.30 ***
20250223 20:12:00 SSMIS-16 85-92GHz 58.4 -13.99 153.63 -13.97 153.66 0.21 0.59 0.20 64.1
20250223 19:26:48 * SSMIS-17 85-92GHz 58.1 -14.19 153.35 -14.12 153.46 0.20 0.56 3.00 3.1
20250223 17:26:34 * SSMIS-18 85-92GHz 57.3 -14.24 153.54 -14.24 153.55 0.20 0.57 0.30 77.0
20250223 15:17:14 * AMSR2 85-92GHz 56.4 -14.24 152.98 -14.28 152.90 0.20 0.55 0.20 90.4
20250223 15:17:14 AMSR2 37GHz 56.4 -14.39 153.66 -14.43 153.57 0.21 0.59 0.20 ***
20250223 11:51:00 * Metop-C ASCAT 54.9 -14.10 153.56 -14.10 153.53 0.18 0.52 *** ***
20250223 10:57:00 Metop-A ASCAT 54.6 *** *** *** *** *** *** *** ***
20250223 08:16:39 SSMIS-17 85-92GHz 53.4 -14.91 152.58 -14.93 152.60 0.16 0.44 0.30 28.0
20250223 06:16:08 * SSMIS-18 85-92GHz 52.6 -14.87 152.68 -14.81 152.62 0.12 0.35 0.30 99.1
20250222 23:23:26 * GMI 85-92GHz 49.0 -15.10 152.41 -15.10 152.42 0.09 0.26 0.20 100.0
20250222 23:23:26 GMI 37GHz 49.0 -14.00 151.84 -14.00 151.85 0.45 1.27 0.60 ***
20250222 22:27:00 Metop-A ASCAT 47.4 -14.00 151.65 -14.00 151.75 0.13 0.36 *** ***
20250222 20:25:32 SSMIS-16 85-92GHz 44.0 -14.10 151.93 -14.10 151.94 0.42 1.20 0.60 2.2
20250222 19:40:50 * SSMIS-17 85-92GHz 42.8 -14.80 152.11 -14.80 152.19 0.26 0.73 2.60 -0.7
20250222 17:40:12 SSMIS-18 85-92GHz 40.0 -14.67 151.82 -14.68 151.80 0.31 0.87 3.00 1.6
20250222 12:12:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** ***
20250222 08:29:36 * SSMIS-17 85-92GHz 37.1 -15.52 150.98 -15.52 150.98 0.13 0.35 3.00 8.0
20250222 06:29:43 SSMIS-18 85-92GHz 35.0 -15.43 150.51 -15.53 150.45 0.17 0.49 2.80 2.2

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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