-- 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
20200831 18:00:00 Metop-B ASCAT 20.0 *** *** *** *** *** *** *** ***
20200831 16:45:00 * Metop-A ASCAT 20.0 25.50 -113.36 25.60 -113.41 0.15 0.43 *** ***
20200831 15:00:00 Geo Vis 20.0 25.37 -113.06 25.37 -113.06 0.52 1.46 0.80 ***
20200831 15:00:00 Geo NearIR 20.0 25.55 -112.84 25.55 -112.84 2.00 5.65 0.20 ***
20200831 15:00:00 Geo IR 20.0 25.50 -112.70 25.50 -112.70 3.36 9.49 0.90 6.5
20200831 14:11:26 SSMIS-17 85-92GHz 20.0 25.73 -113.47 25.80 -113.50 0.42 1.20 0.50 1.0
20200831 12:55:22 SSMIS-18 85-92GHz 20.0 25.51 -113.53 25.43 -113.50 0.29 0.82 2.50 2.5
20200831 12:00:00 Geo NearIR 20.0 24.76 -112.95 24.76 -112.95 0.61 1.72 0.80 ***
20200831 12:00:00 Geo IR 20.0 24.46 -112.78 24.46 -112.78 3.36 9.49 0.80 0.6
20200831 11:44:08 SSMIS-16 85-92GHz 20.0 25.46 -113.33 25.48 -113.33 0.34 0.95 0.70 2.0
20200831 09:50:12 * AMSR2 85-92GHz 20.0 25.23 -113.43 25.15 -113.41 0.23 0.65 1.30 5.0
20200831 09:50:12 AMSR2 37GHz 20.0 25.08 -112.82 25.00 -112.80 0.38 1.08 2.20 ***
20200831 09:00:00 Geo NearIR 20.0 24.85 -113.38 24.85 -113.38 1.72 4.85 0.20 ***
20200831 09:00:00 Geo IR 20.0 25.40 -113.57 25.40 -113.57 1.76 4.97 0.90 1.3
20200831 06:00:00 Geo NearIR 20.0 24.45 -113.15 24.45 -113.15 0.99 2.81 1.00 ***
20200831 06:00:00 Geo IR 20.0 24.65 -113.10 24.65 -113.10 1.22 3.45 1.00 1.7
20200831 04:18:00 * Metop-A ASCAT 20.9 24.37 -113.15 24.23 -113.13 0.18 0.51 *** ***
20200831 03:00:00 Geo NearIR 21.7 24.13 -113.11 24.13 -113.11 0.44 1.25 0.70 ***
20200831 03:00:00 Geo IR 21.7 24.28 -112.89 24.28 -112.89 1.13 3.19 0.60 0.5
20200831 02:30:19 GMI 85-92GHz 21.9 24.32 -113.45 24.38 -113.46 0.25 0.70 0.30 5.1
20200831 02:30:19 GMI 37GHz 21.9 24.12 -113.07 24.18 -113.08 0.27 0.76 1.40 ***
20200831 01:41:31 SSMIS-17 85-92GHz 22.4 24.08 -113.50 24.23 -113.52 0.26 0.74 0.20 4.0
20200831 00:25:06 SSMIS-18 85-92GHz 23.1 23.98 -113.81 23.93 -113.81 0.26 0.73 1.40 2.3
20200831 00:00:00 Geo Vis 23.3 24.13 -113.15 24.13 -113.15 0.20 0.57 0.60 ***
20200831 00:00:00 Geo NearIR 23.3 24.11 -113.07 24.11 -113.07 2.11 5.96 0.10 ***
20200831 00:00:00 Geo IR 23.3 24.43 -113.21 24.43 -113.21 3.36 9.49 0.10 10.6
20200830 23:13:56 SSMIS-16 85-92GHz 23.8 23.79 -113.36 23.88 -113.37 0.23 0.65 3.00 3.8
20200830 21:00:00 * Geo Vis 25.0 23.68 -113.30 23.68 -113.30 0.15 0.41 0.20 ***
20200830 21:00:00 Geo NearIR 25.0 23.68 -113.22 23.68 -113.22 0.37 1.05 0.20 ***
20200830 21:00:00 Geo IR 25.0 23.75 -113.11 23.75 -113.11 0.73 2.05 0.50 3.6
20200830 18:00:00 * Geo Vis 25.0 23.40 -113.16 23.40 -113.16 0.11 0.30 0.30 ***
20200830 18:00:00 Geo NearIR 25.0 23.38 -113.16 23.38 -113.16 0.38 1.06 0.10 ***
20200830 18:00:00 Geo IR 25.0 23.40 -113.14 23.40 -113.14 0.49 1.39 0.90 2.3
20200830 16:39:00 Metop-B ASCAT 26.1 23.05 -113.20 23.20 -113.19 0.15 0.42 *** ***
20200830 15:00:00 Geo Vis 27.5 23.11 -113.11 23.11 -113.11 0.36 1.01 0.10 ***
20200830 15:00:00 Geo NearIR 27.5 23.46 -113.27 23.46 -113.27 3.36 9.49 0.20 ***
20200830 15:00:00 Geo IR 27.5 23.58 -113.03 23.58 -113.03 2.27 6.41 0.20 0.9
20200830 14:25:15 SSMIS-17 85-92GHz 28.0 23.29 -113.50 23.36 -113.49 0.32 0.90 1.50 2.0
20200830 13:10:19 * GMI 85-92GHz 30.0 23.17 -113.45 23.03 -113.49 0.22 0.63 0.30 4.5
20200830 13:10:19 GMI 37GHz 30.0 22.92 -113.18 22.78 -113.21 0.28 0.78 1.00 ***
20200830 13:08:51 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20200830 12:00:00 Geo NearIR 30.0 22.68 -113.35 22.68 -113.35 0.88 2.50 0.70 ***
20200830 12:00:00 Geo IR 30.0 22.85 -113.24 22.85 -113.24 0.28 0.79 0.90 4.7
20200830 11:57:53 SSMIS-16 85-92GHz 30.0 23.20 -113.62 23.20 -113.62 0.25 0.72 1.30 8.6
20200830 09:07:57 AMSR2 85-92GHz 30.0 22.72 -113.51 22.70 -113.53 0.40 1.13 1.50 2.7
20200830 09:07:57 * AMSR2 37GHz 30.0 22.37 -113.46 22.35 -113.48 0.20 0.56 0.60 ***
20200830 09:00:00 Geo NearIR 30.0 22.33 -113.37 22.33 -113.37 0.57 1.61 0.90 ***
20200830 09:00:00 Geo IR 30.0 22.48 -113.34 22.48 -113.34 1.10 3.11 0.80 3.7
20200830 06:00:00 Geo NearIR 30.0 22.82 -112.81 22.82 -112.81 0.70 1.98 0.80 ***
20200830 06:00:00 Geo IR 30.0 22.70 -113.40 22.70 -113.40 3.36 9.49 0.20 2.2
20200830 04:12:00 * Metop-B ASCAT 31.5 21.73 -113.62 21.61 -113.65 0.15 0.42 *** ***
20200830 03:25:19 GMI 85-92GHz 32.1 *** *** *** *** *** *** 3.00 ***
20200830 03:25:19 GMI 37GHz 32.1 *** *** *** *** *** *** 3.00 ***
20200830 03:00:00 Geo NearIR 32.5 21.61 -113.74 21.61 -113.74 3.36 9.49 0.80 ***
20200830 03:00:00 Geo IR 32.5 22.41 -113.47 22.41 -113.47 3.36 9.49 0.10 0.6
20200830 01:54:02 SSMIS-17 85-92GHz 33.4 21.55 -114.28 21.66 -114.26 0.33 0.93 2.50 1.8
20200830 00:37:04 SSMIS-18 85-92GHz 35.0 21.53 -114.43 21.46 -114.46 0.30 0.86 0.40 2.3
20200830 00:00:00 Geo Vis 35.0 21.85 -113.82 21.85 -113.82 3.36 9.49 0.10 ***
20200830 00:00:00 Geo NearIR 35.0 23.05 -114.06 23.05 -114.06 3.26 9.22 0.90 ***
20200830 00:00:00 Geo IR 35.0 22.92 -114.11 22.92 -114.11 3.36 9.49 0.40 2.8
20200829 23:26:14 * SSMIS-16 85-92GHz 35.5 21.12 -114.16 21.19 -114.14 0.30 0.86 2.50 2.7
20200829 21:00:00 Geo Vis 37.5 20.79 -114.29 20.79 -114.29 0.33 0.94 0.50 ***
20200829 21:00:00 Geo NearIR 37.5 *** *** *** *** *** *** 0.60 ***
20200829 21:00:00 Geo IR 37.5 *** *** *** *** *** *** 0.40 ***
20200829 20:58:05 * AMSR2 85-92GHz 37.5 21.04 -114.50 21.04 -114.50 0.31 0.88 0.60 29.5
20200829 20:58:05 AMSR2 37GHz 37.5 *** *** *** *** *** *** 0.60 ***
20200829 18:00:00 Geo Vis 40.0 20.40 -114.39 20.40 -114.39 1.07 3.02 0.40 ***
20200829 18:00:00 Geo NearIR 40.0 18.93 -114.23 18.93 -114.23 0.68 1.93 0.60 ***
20200829 18:00:00 Geo IR 40.0 *** *** *** *** *** *** 0.80 ***
20200829 17:00:00 Metop-B ASCAT 40.0 20.52 -114.53 20.65 -114.49 0.19 0.53 *** ***
20200829 15:48:00 * Metop-A ASCAT 39.6 20.15 -114.42 20.05 -114.44 0.16 0.45 *** ***
20200829 15:00:00 Geo Vis 40.0 *** *** *** *** *** *** 0.10 ***
20200829 15:00:00 Geo NearIR 40.0 20.25 -114.59 20.25 -114.59 3.36 9.49 0.70 ***
20200829 15:00:00 Geo IR 40.0 *** *** *** *** *** *** 0.10 ***
20200829 14:39:29 SSMIS-17 85-92GHz 40.0 20.61 -114.71 20.65 -114.70 0.28 0.78 1.60 15.3
20200829 14:05:18 GMI 85-92GHz 40.0 20.38 -114.78 20.48 -114.75 0.20 0.57 1.40 58.5
20200829 14:05:18 * GMI 37GHz 40.0 20.03 -114.51 20.13 -114.48 0.17 0.48 0.60 ***
20200829 12:11:25 SSMIS-16 85-92GHz 40.0 20.17 -114.90 20.15 -114.91 0.24 0.67 1.40 28.6
20200829 12:00:00 Geo NearIR 40.0 19.10 -115.46 19.10 -115.46 0.77 2.18 1.00 ***
20200829 12:00:00 Geo IR 40.0 20.55 -113.84 20.55 -113.84 3.28 9.26 0.10 11.5
20200829 09:00:00 Geo NearIR 40.0 19.70 -115.02 19.70 -115.02 2.61 7.36 0.10 ***
20200829 09:00:00 Geo IR 40.0 *** *** *** *** *** *** 0.10 ***
20200829 06:00:00 Geo NearIR 40.0 19.42 -114.93 19.42 -114.93 3.36 9.49 0.50 ***
20200829 06:00:00 Geo IR 40.0 *** *** *** *** *** *** 0.30 ***
20200829 04:33:00 * Metop-B ASCAT 41.2 19.29 -115.13 19.39 -115.09 0.20 0.56 *** ***
20200829 03:00:00 Geo NearIR 42.5 20.49 -115.88 20.49 -115.88 1.78 5.03 0.10 ***
20200829 03:00:00 Geo IR 42.5 *** *** *** *** *** *** 0.60 ***
20200829 02:06:43 SSMIS-17 85-92GHz 43.2 19.29 -115.23 19.35 -115.22 0.45 1.28 1.20 2.3
20200829 00:00:00 Geo Vis 45.0 19.00 -115.25 19.00 -115.25 3.36 9.49 0.20 ***
20200829 00:00:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.20 ***
20200829 00:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.60 ***
20200828 23:38:22 SSMIS-16 85-92GHz 45.0 19.17 -115.46 19.19 -115.46 0.40 1.13 0.90 9.0
20200828 21:00:00 * Geo Vis 45.0 18.79 -115.30 18.79 -115.30 0.35 0.98 0.30 ***
20200828 21:00:00 Geo NearIR 45.0 18.79 -115.30 18.79 -115.30 1.35 3.82 0.50 ***
20200828 21:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.50 ***
20200828 18:00:00 Geo Vis 45.0 18.57 -115.27 18.57 -115.27 0.53 1.49 0.10 ***
20200828 18:00:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.50 ***
20200828 18:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.20 ***
20200828 16:09:00 * Metop-A ASCAT 46.5 18.53 -115.40 18.44 -115.42 0.26 0.73 *** ***
20200828 15:00:00 Geo Vis 47.5 18.11 -115.68 18.11 -115.68 0.69 1.96 0.40 ***
20200828 15:00:00 Geo NearIR 47.5 *** *** *** *** *** *** 0.20 ***
20200828 15:00:00 Geo IR 47.5 *** *** *** *** *** *** 0.10 ***
20200828 14:53:32 SSMIS-17 85-92GHz 47.6 18.28 -115.84 18.29 -115.84 0.33 0.95 0.30 29.8
20200828 12:25:04 * SSMIS-16 85-92GHz 50.0 18.24 -115.55 18.20 -115.56 0.23 0.65 0.50 56.4
20200828 12:00:00 Geo NearIR 50.0 17.52 -116.00 17.52 -116.00 1.45 4.10 1.00 ***
20200828 12:00:00 Geo IR 50.0 *** *** *** *** *** *** 0.30 ***
20200828 09:21:21 AMSR2 85-92GHz 50.0 17.90 -115.53 17.87 -115.51 0.24 0.67 0.40 58.4
20200828 09:21:21 * AMSR2 37GHz 50.0 17.85 -115.42 17.82 -115.41 0.14 0.38 0.20 ***
20200828 09:00:00 Geo NearIR 50.0 17.80 -115.56 17.80 -115.56 1.32 3.73 0.10 ***
20200828 09:00:00 Geo IR 50.0 *** *** *** *** *** *** 0.50 ***
20200828 06:00:00 Geo NearIR 50.0 17.18 -115.99 17.18 -115.99 1.33 3.77 1.00 ***
20200828 06:00:00 Geo IR 50.0 *** *** *** *** *** *** 0.70 ***
20200828 03:39:00 Metop-A ASCAT 48.0 17.61 -115.47 17.59 -115.52 0.20 0.57 *** ***
20200828 03:35:17 GMI 85-92GHz 48.0 17.71 -115.68 17.69 -115.73 0.24 0.68 0.80 57.3
20200828 03:35:17 * GMI 37GHz 48.0 17.46 -115.47 17.44 -115.52 0.17 0.47 0.20 ***
20200828 03:00:00 Geo NearIR 47.5 *** *** *** *** *** *** 0.10 ***
20200828 03:00:00 Geo IR 47.5 *** *** *** *** *** *** 0.60 ***
20200828 02:19:44 SSMIS-17 85-92GHz 46.9 17.38 -115.45 17.40 -115.39 0.30 0.86 0.30 39.1
20200828 00:00:00 Geo Vis 45.0 17.65 -115.84 17.65 -115.84 3.36 9.49 0.10 ***
20200828 00:00:00 Geo NearIR 45.0 19.02 -115.08 19.02 -115.08 0.73 2.08 0.20 ***
20200828 00:00:00 Geo IR 45.0 19.05 -115.44 19.05 -115.44 2.07 5.84 0.80 25.9
20200827 23:50:57 SSMIS-16 85-92GHz 45.0 17.39 -115.82 17.40 -115.81 0.25 0.72 0.70 54.4
20200827 21:09:20 AMSR2 85-92GHz 45.0 17.21 -115.85 17.20 -115.86 0.29 0.83 0.70 47.9
20200827 21:09:20 * AMSR2 37GHz 45.0 17.11 -115.69 17.10 -115.70 0.21 0.58 0.30 ***
20200827 21:00:00 Geo Vis 45.0 *** *** *** *** *** *** 0.40 ***
20200827 21:00:00 Geo NearIR 45.0 18.88 -115.20 18.88 -115.20 0.45 1.27 0.40 ***
20200827 21:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.70 ***
20200827 18:00:00 Geo Vis 45.0 16.95 -115.66 16.95 -115.66 0.24 0.68 0.10 ***
20200827 18:00:00 Geo NearIR 45.0 16.68 -116.48 16.68 -116.48 1.38 3.89 0.20 ***
20200827 18:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.10 ***
20200827 17:45:00 * Metop-B ASCAT 44.8 16.99 -115.90 17.00 -115.90 0.16 0.45 *** ***
20200827 15:00:00 Geo Vis 42.5 16.82 -115.87 16.82 -115.87 0.51 1.45 0.40 ***
20200827 15:00:00 Geo NearIR 42.5 *** *** *** *** *** *** 0.30 ***
20200827 15:00:00 Geo IR 42.5 16.92 -114.93 16.92 -114.93 3.36 9.49 0.90 2.1
20200827 12:38:33 * SSMIS-16 85-92GHz 40.0 17.05 -116.26 17.02 -116.26 0.15 0.42 3.00 0.0
20200827 12:00:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.30 ***
20200827 12:00:00 Geo IR 40.0 *** *** *** *** *** *** 0.30 ***
20200827 09:00:00 Geo NearIR 40.0 16.23 -116.49 16.23 -116.49 0.96 2.72 0.10 ***
20200827 09:00:00 Geo IR 40.0 16.95 -116.23 16.95 -116.23 3.36 9.49 0.30 4.8
20200827 06:00:00 Geo NearIR 40.0 15.97 -116.88 15.97 -116.88 0.56 1.58 0.10 ***
20200827 06:00:00 Geo IR 40.0 15.95 -116.98 15.95 -116.98 1.16 3.27 0.10 5.0
20200827 05:12:00 Metop-B ASCAT 39.3 *** *** *** *** *** *** *** ***
20200827 04:00:00 Metop-A ASCAT 38.3 *** *** *** *** *** *** *** ***
20200827 03:00:00 Geo NearIR 37.5 15.29 -117.67 15.29 -117.67 0.47 1.34 0.10 ***
20200827 03:00:00 Geo IR 37.5 15.64 -117.28 15.64 -117.28 3.36 9.49 0.10 0.4
20200827 02:32:49 SSMIS-17 85-92GHz 37.1 16.62 -116.62 16.66 -116.60 0.32 0.91 1.40 9.4
20200827 00:03:38 * SSMIS-16 85-92GHz 35.0 16.01 -116.60 16.00 -116.61 0.22 0.61 1.50 27.6
20200827 00:00:00 Geo Vis 35.0 15.45 -116.27 15.45 -116.27 2.26 6.39 0.20 ***
20200827 00:00:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.20 ***
20200827 00:00:00 Geo IR 35.0 *** *** *** *** *** *** 0.20 ***
20200826 21:00:00 * Geo Vis 35.0 15.88 -116.42 15.88 -116.42 0.47 1.32 0.10 ***
20200826 21:00:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.30 ***
20200826 21:00:00 Geo IR 35.0 15.57 -115.22 15.57 -115.22 3.36 9.49 0.30 14.1
20200826 18:00:00 Geo Vis 35.0 *** *** *** *** *** *** 0.20 ***
20200826 18:00:00 Geo NearIR 35.0 15.48 -117.06 15.48 -117.06 1.22 3.45 0.90 ***
20200826 18:00:00 Geo IR 35.0 16.05 -116.36 16.05 -116.36 3.36 9.49 0.70 6.0
20200826 16:51:00 * Metop-A ASCAT 34.0 15.50 -117.11 15.50 -117.03 0.38 1.08 *** ***
20200826 15:10:19 GMI 85-92GHz 32.6 15.35 -116.85 15.35 -116.86 0.58 1.65 0.90 0.8
20200826 15:10:19 GMI 37GHz 32.6 15.25 -116.79 15.25 -116.81 0.59 1.66 0.50 ***
20200826 15:00:00 Geo Vis 32.5 15.73 -116.78 15.73 -116.78 3.36 9.49 0.10 ***
20200826 15:00:00 Geo NearIR 32.5 15.45 -116.88 15.45 -116.88 0.54 1.54 0.90 ***
20200826 15:00:00 Geo IR 32.5 *** *** *** *** *** *** 0.70 ***
20200826 12:20:30 SSMIS-18 85-92GHz 30.0 15.46 -117.50 15.46 -117.52 0.52 1.48 1.40 2.2
20200826 12:00:00 Geo NearIR 30.0 *** *** *** *** *** *** 0.60 ***
20200826 12:00:00 Geo IR 30.0 *** *** *** *** *** *** 0.70 ***

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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