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
		20170904 10:56:39 GMI 85-92GHz 20.0 32.10 -120.48 32.15 -120.67 0.35 0.99 1.10 2.5 20170904 10:56:39 GMI 37GHz 20.0 *** *** *** *** *** *** 2.30 ***
		20170904 10:11:47 * AMSR2 85-92GHz 20.0 31.87 -120.34 31.81 -120.13 0.29 0.83 0.70 5.5 20170904 10:11:47 AMSR2 37GHz 20.0 *** *** *** *** *** *** 2.60 *** 20170904 09:00:00 Geo NearIR 20.0 *** *** *** *** *** *** 0.40 *** 20170904 09:00:00 Geo IR 20.0 *** *** *** *** *** *** 0.20 ***
		20170904 06:00:00 Geo NearIR 20.0 31.17 -119.30 31.17 -119.30 0.39 1.09 0.20 *** 20170904 06:00:00 Geo IR 20.0 31.34 -119.22 31.34 -119.22 3.36 9.49 0.20 0.1 20170904 05:27:00 * Metop-B ASCAT 20.0 31.36 -119.15 31.39 -119.25 0.20 0.57 *** *** 20170904 04:33:00 * Metop-A ASCAT 20.0 31.46 -119.05 31.54 -119.31 0.21 0.58 *** ***
		20170904 03:00:00 Geo NearIR 20.0 *** *** *** *** *** *** 0.10 *** 20170904 03:00:00 Geo IR 20.0 *** *** *** *** *** *** 0.40 *** 20170904 02:06:26 SSMIS-17 85-92GHz 20.0 31.35 -118.81 31.41 -118.96 0.51 1.43 2.80 0.8
		20170904 00:00:00 * Geo Vis 20.0 31.15 -118.14 31.15 -118.14 0.42 1.19 0.10 *** 20170904 00:00:00 Geo NearIR 20.0 *** *** *** *** *** *** 0.40 *** 20170904 00:00:00 Geo IR 20.0 *** *** *** *** *** *** 0.10 *** 20170903 23:12:40 SSMIS-16 85-92GHz 20.3 *** *** *** *** *** *** 2.40 ***
		20170903 21:00:00 Geo Vis 21.2 29.29 -119.22 29.29 -119.22 0.94 2.66 1.00 *** 20170903 21:00:00 Geo NearIR 21.2 *** *** *** *** *** *** 0.20 *** 20170903 21:00:00 Geo IR 21.2 *** *** *** *** *** *** 0.90 ***
		20170903 18:12:00 * Metop-B ASCAT 22.4 30.31 -117.47 30.29 -117.44 0.37 1.05 *** *** 20170903 18:00:00 Geo Vis 22.5 29.41 -118.86 29.41 -118.86 3.36 9.49 0.30 *** 20170903 18:00:00 Geo NearIR 22.5 *** *** *** *** *** *** 0.40 *** 20170903 18:00:00 Geo IR 22.5 *** *** *** *** *** *** 0.90 *** 20170903 17:18:00 Metop-A ASCAT 22.8 30.42 -118.03 30.49 -118.14 1.75 4.94 *** ***
		20170903 15:00:00 Geo Vis 23.8 30.59 -117.61 30.59 -117.61 3.36 9.49 0.20 *** 20170903 15:00:00 Geo NearIR 23.8 30.32 -117.64 30.32 -117.64 3.36 9.49 0.30 *** 20170903 15:00:00 Geo IR 23.8 30.12 -116.80 30.12 -116.80 3.36 9.49 0.10 1.0 20170903 14:46:25 * SSMIS-17 85-92GHz 23.8 30.22 -116.88 30.24 -116.92 0.53 1.50 3.00 0.6
		20170903 12:00:00 Geo NearIR 25.0 30.10 -116.31 30.10 -116.31 1.96 5.53 0.10 *** 20170903 12:00:00 Geo IR 25.0 30.32 -116.45 30.32 -116.45 3.36 9.49 0.10 2.4 20170903 11:52:57 SSMIS-16 85-92GHz 25.1 30.19 -116.66 30.20 -116.68 0.51 1.44 0.20 0.7
		20170903 09:29:22 * AMSR2 85-92GHz 26.4 29.79 -116.04 29.74 -115.96 0.39 1.10 0.10 2.7 20170903 09:29:22 AMSR2 37GHz 26.4 29.54 -116.62 29.49 -116.53 0.41 1.16 1.50 *** 20170903 09:00:00 Geo NearIR 26.7 29.77 -116.79 29.77 -116.79 1.54 4.34 0.10 *** 20170903 09:00:00 Geo IR 26.7 29.54 -116.68 29.54 -116.68 3.36 9.49 0.10 0.6
		20170903 06:00:00 Geo NearIR 28.3 28.95 -115.99 28.95 -115.99 1.89 5.35 0.20 *** 20170903 06:00:00 Geo IR 28.3 29.22 -116.30 29.22 -116.30 3.36 9.49 0.40 1.2
		20170903 04:09:00 Metop-B ASCAT 29.4 *** *** *** *** *** *** *** *** 20170903 03:00:00 Geo NearIR 30.0 28.70 -115.86 28.70 -115.86 3.36 9.49 0.10 *** 20170903 03:00:00 Geo IR 30.0 28.40 -116.14 28.40 -116.14 3.36 9.49 0.50 2.4 20170903 02:19:12 SSMIS-17 85-92GHz 30.0 28.50 -115.33 28.55 -115.40 0.57 1.61 3.00 0.0
		20170903 01:17:09 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 3.00 *** 20170903 00:00:00 Geo Vis 30.0 29.15 -115.79 29.15 -115.79 3.31 9.36 0.10 *** 20170903 00:00:00 Geo NearIR 30.0 28.45 -115.61 28.45 -115.61 3.36 9.49 0.30 *** 20170903 00:00:00 Geo IR 30.0 28.48 -115.84 28.48 -115.84 3.36 9.49 0.90 1.8 20170902 23:25:05 SSMIS-16 85-92GHz 30.5 28.37 -115.07 28.40 -115.14 0.57 1.61 3.00 0.4
		20170902 21:23:43 * AMSR2 85-92GHz 32.2 28.73 -115.27 28.71 -115.21 0.27 0.75 1.80 5.7 20170902 21:23:43 AMSR2 37GHz 32.2 28.53 -114.82 28.51 -114.75 0.31 0.86 0.40 *** 20170902 21:00:00 Geo Vis 32.5 28.84 -115.47 28.84 -115.47 0.68 1.94 0.10 *** 20170902 21:00:00 Geo NearIR 32.5 28.26 -114.81 28.26 -114.81 1.39 3.92 0.30 *** 20170902 21:00:00 Geo IR 32.5 28.51 -115.49 28.51 -115.49 3.36 9.49 0.20 3.6 20170902 20:51:39 GMI 85-92GHz 32.6 28.70 -115.02 28.71 -115.04 0.56 1.57 2.70 0.6 20170902 20:51:39 GMI 37GHz 32.6 28.45 -114.79 28.46 -114.81 0.32 0.90 0.70 ***
		20170902 18:00:00 Geo Vis 35.0 29.12 -115.11 29.12 -115.11 0.82 2.33 0.10 *** 20170902 18:00:00 Geo NearIR 35.0 28.30 -114.20 28.30 -114.20 2.70 7.63 0.20 *** 20170902 18:00:00 Geo IR 35.0 28.00 -114.74 28.00 -114.74 2.84 8.04 0.30 13.1 20170902 17:39:00 * Metop-A ASCAT 35.0 27.51 -115.13 27.54 -115.17 0.32 0.91 *** *** 20170902 16:54:00 Metop-B ASCAT 35.0 28.81 -114.47 28.92 -114.60 0.52 1.46 *** ***
		20170902 15:00:30 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 3.00 *** 20170902 15:00:00 Geo Vis 35.0 *** *** *** *** *** *** 0.10 *** 20170902 15:00:00 Geo NearIR 35.0 28.37 -113.90 28.37 -113.90 0.69 1.95 0.50 *** 20170902 15:00:00 Geo IR 35.0 28.27 -114.02 28.27 -114.02 2.40 6.77 0.50 13.2 20170902 13:57:56 SSMIS-18 85-92GHz 35.0 28.05 -114.58 28.23 -114.69 0.42 1.19 3.00 2.7
		20170902 12:06:24 * SSMIS-16 85-92GHz 35.0 27.91 -113.74 27.90 -113.73 0.25 0.71 2.10 21.1 20170902 12:00:00 Geo NearIR 35.0 28.00 -114.69 28.00 -114.69 3.36 9.49 0.10 *** 20170902 12:00:00 Geo IR 35.0 28.10 -113.84 28.10 -113.84 3.36 9.49 0.10 5.3 20170902 11:06:40 * GMI 85-92GHz 36.5 27.79 -113.68 27.91 -113.78 0.20 0.57 3.00 0.0 20170902 11:06:40 GMI 37GHz 36.5 27.84 -113.45 27.96 -113.56 0.21 0.60 3.00 ***
		20170902 09:00:00 Geo NearIR 40.0 26.97 -112.59 26.97 -112.59 2.49 7.04 0.10 *** 20170902 09:00:00 Geo IR 40.0 26.70 -112.64 26.70 -112.64 3.36 9.49 0.10 13.4
		20170902 06:00:00 Geo NearIR 45.0 28.03 -111.74 28.03 -111.74 0.56 1.57 0.90 *** 20170902 06:00:00 Geo IR 45.0 26.55 -112.70 26.55 -112.70 3.36 9.49 0.10 25.8 20170902 05:15:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
		20170902 04:27:00 Metop-B ASCAT 45.0 *** *** *** *** *** *** *** *** 20170902 03:00:00 Geo NearIR 45.0 27.47 -111.76 27.47 -111.76 3.36 9.49 1.00 *** 20170902 03:00:00 Geo IR 45.0 27.65 -111.67 27.65 -111.67 3.36 9.49 0.10 10.7
		20170902 01:28:35 * SSMIS-18 85-92GHz 45.0 26.55 -112.37 26.35 -112.18 0.33 0.94 0.90 25.2 20170902 00:00:00 Geo Vis 45.0 *** *** *** *** *** *** 0.60 *** 20170902 00:00:00 Geo NearIR 45.0 26.05 -111.33 26.05 -111.33 3.36 9.49 0.10 *** 20170902 00:00:00 Geo IR 45.0 26.55 -111.14 26.55 -111.14 0.52 1.48 0.40 47.7 20170901 23:37:22 * SSMIS-16 85-92GHz 45.0 25.10 -112.17 25.15 -112.22 0.29 0.83 3.00 0.0
		20170901 21:39:10 SSMI-15 85-92GHz 45.0 25.41 -111.82 25.31 -111.71 0.41 1.16 0.40 20.9 20170901 21:00:00 Geo Vis 45.0 *** *** *** *** *** *** 0.30 *** 20170901 21:00:00 Geo NearIR 45.0 25.24 -111.24 25.24 -111.24 0.81 2.28 0.10 *** 20170901 21:00:00 Geo IR 45.0 *** *** *** *** *** *** 0.10 *** 20170901 20:39:31 AMSR2 85-92GHz 45.0 *** *** *** *** *** *** 0.30 *** 20170901 20:39:31 * AMSR2 37GHz 45.0 25.71 -111.55 25.76 -111.60 0.37 1.05 0.20 ***
		20170901 18:00:00 Geo Vis 45.0 25.45 -111.35 25.45 -111.35 1.05 2.97 0.10 *** 20170901 18:00:00 Geo NearIR 45.0 25.23 -110.94 25.23 -110.94 1.22 3.45 1.00 *** 20170901 18:00:00 Geo IR 45.0 24.95 -111.19 24.95 -111.19 3.36 9.49 0.10 1.0
		20170901 15:00:00 Geo Vis 47.5 24.71 -111.26 24.71 -111.26 0.82 2.32 1.00 *** 20170901 15:00:00 Geo NearIR 47.5 24.69 -111.20 24.69 -111.20 1.06 3.00 1.00 *** 20170901 15:00:00 Geo IR 47.5 24.21 -110.87 24.21 -110.87 3.36 9.49 0.10 9.2 20170901 14:11:05 * SSMIS-18 85-92GHz 48.2 24.59 -111.15 24.74 -111.25 0.28 0.78 0.40 16.5
		20170901 12:00:00 Geo NearIR 50.0 24.25 -110.22 24.25 -110.22 3.36 9.49 0.10 *** 20170901 12:00:00 Geo IR 50.0 24.12 -110.57 24.12 -110.57 1.05 2.97 0.20 49.4
		20170901 10:23:43 SSMI-15 85-92GHz 51.3 *** *** *** *** *** *** 1.00 *** 20170901 09:00:00 Geo NearIR 52.5 23.83 -111.37 23.83 -111.37 3.36 9.49 0.30 *** 20170901 09:00:00 Geo IR 52.5 23.18 -110.58 23.18 -110.58 3.36 9.49 0.40 21.1
		20170901 06:00:00 Geo NearIR 55.0 *** *** *** *** *** *** 0.50 *** 20170901 06:00:00 Geo IR 55.0 23.88 -109.72 23.88 -109.72 3.36 9.49 0.90 6.0 20170901 04:48:00 Metop-B ASCAT 56.0 *** *** *** *** *** *** *** ***
		20170901 03:54:00 Metop-A ASCAT 56.8 *** *** *** *** *** *** *** *** 20170901 03:00:00 Geo NearIR 57.5 *** *** *** *** *** *** 1.00 *** 20170901 03:00:00 Geo IR 57.5 23.41 -109.95 23.41 -109.95 0.46 1.31 0.10 6.4 20170901 01:40:17 SSMIS-18 85-92GHz 58.6 22.98 -110.58 23.09 -110.71 0.52 1.48 1.10 2.5
		20170901 01:02:57 * SSMIS-17 85-92GHz 58.3 22.83 -110.37 22.74 -110.30 0.18 0.51 0.70 67.3 20170901 00:00:00 Geo Vis 60.0 22.72 -109.68 22.72 -109.68 1.23 3.47 0.50 *** 20170901 00:00:00 Geo NearIR 60.0 22.82 -110.15 22.82 -110.15 0.52 1.46 0.10 *** 20170901 00:00:00 Geo IR 60.0 22.85 -110.15 22.85 -110.15 0.46 1.29 0.10 60.2
		20170831 21:54:08 SSMI-15 85-92GHz 58.3 22.66 -110.34 22.58 -110.32 0.24 0.68 1.00 33.7 20170831 21:01:40 GMI 85-92GHz 57.5 *** *** *** *** *** *** 1.30 *** 20170831 21:01:40 * GMI 37GHz 57.5 22.59 -110.10 22.58 -110.10 0.11 0.31 0.50 *** 20170831 21:00:00 Geo Vis 57.5 22.48 -110.07 22.48 -110.07 2.54 7.19 0.10 *** 20170831 21:00:00 Geo NearIR 57.5 22.28 -109.48 22.28 -109.48 1.39 3.93 0.50 *** 20170831 21:00:00 Geo IR 57.5 22.53 -110.23 22.53 -110.23 1.66 4.68 0.10 28.1
		20170831 18:00:00 Geo Vis 55.0 *** *** *** *** *** *** 0.30 *** 20170831 18:00:00 Geo NearIR 55.0 22.10 -109.76 22.10 -109.76 0.43 1.22 0.40 *** 20170831 18:00:00 Geo IR 55.0 22.72 -110.00 22.72 -110.00 1.37 3.87 0.10 29.7 20170831 17:36:00 * Metop-B ASCAT 54.3 22.46 -109.92 22.50 -109.94 0.18 0.50 *** *** 20170831 16:42:00 * Metop-A ASCAT 52.8 22.24 -109.81 22.34 -109.88 0.19 0.53 *** ***
		20170831 15:00:00 Geo Vis 50.0 21.91 -109.74 21.91 -109.74 0.83 2.35 1.00 *** 20170831 15:00:00 Geo NearIR 50.0 21.81 -108.80 21.81 -108.80 0.60 1.69 0.50 *** 20170831 15:00:00 Geo IR 50.0 21.83 -109.26 21.83 -109.26 3.18 8.99 0.10 0.3 20170831 14:24:17 SSMIS-18 85-92GHz 49.0 21.71 -109.97 21.76 -110.01 0.40 1.12 1.00 10.5 20170831 13:47:31 * SSMIS-17 85-92GHz 48.0 21.77 -109.93 21.86 -110.02 0.22 0.61 1.00 46.1
		20170831 12:00:00 Geo NearIR 45.0 22.30 -108.71 22.30 -108.71 1.19 3.36 0.10 *** 20170831 12:00:00 Geo IR 45.0 21.77 -108.85 21.77 -108.85 3.36 9.49 0.20 5.3 20170831 11:11:40 GMI 85-92GHz 44.3 *** *** *** *** *** *** 3.00 *** 20170831 11:11:40 GMI 37GHz 44.3 *** *** *** *** *** *** 0.80 *** 20170831 10:53:09 SSMIS-16 85-92GHz 44.1 *** *** *** *** *** *** 3.00 ***
		20170831 09:00:36 AMSR2 85-92GHz 42.5 21.54 -109.45 21.54 -109.45 0.62 1.76 1.10 0.5 20170831 09:00:36 AMSR2 37GHz 42.5 21.49 -109.24 21.49 -109.24 0.44 1.25 0.70 *** 20170831 09:00:00 Geo NearIR 42.5 21.17 -110.15 21.17 -110.15 3.36 9.49 0.20 *** 20170831 09:00:00 Geo IR 42.5 21.32 -111.33 21.32 -111.33 3.36 9.49 0.30 19.0
		20170831 06:00:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.80 *** 20170831 06:00:00 * Geo IR 40.0 21.68 -108.98 21.68 -108.98 0.31 0.88 0.10 0.8 20170831 05:06:00 Metop-B ASCAT 39.3 *** *** *** *** *** *** *** ***
		20170831 04:15:00 * Metop-A ASCAT 38.5 21.12 -109.48 21.00 -109.42 0.27 0.77 *** *** 20170831 03:00:00 Geo NearIR 37.5 21.22 -108.19 21.22 -108.19 0.98 2.77 0.10 *** 20170831 03:00:00 Geo IR 37.5 22.22 -108.75 22.22 -108.75 0.73 2.06 0.50 51.4 20170831 01:52:06 SSMIS-18 85-92GHz 36.6 20.44 -109.47 20.54 -109.52 0.38 1.07 0.70 11.7
		20170831 01:15:33 * SSMIS-17 85-92GHz 36.0 20.43 -109.44 20.30 -109.37 0.21 0.58 0.40 39.1 20170831 00:00:00 Geo Vis 35.0 *** *** *** *** *** *** 0.20 *** 20170831 00:00:00 Geo NearIR 35.0 20.77 -108.47 20.77 -108.47 0.30 0.85 0.20 *** 20170831 00:00:00 Geo IR 35.0 21.25 -108.44 21.25 -108.44 3.36 9.49 0.20 1.9
		20170830 21:56:39 GMI 85-92GHz 35.5 20.24 -109.21 20.14 -109.16 0.57 1.60 2.00 1.3 20170830 21:56:39 * GMI 37GHz 35.5 20.64 -108.30 20.54 -108.26 0.22 0.63 0.80 *** 20170830 21:00:00 Geo Vis 35.0 20.33 -109.23 20.33 -109.23 0.36 1.02 0.80 *** 20170830 21:00:00 Geo NearIR 35.0 21.00 -108.91 21.00 -108.91 1.40 3.96 0.10 *** 20170830 21:00:00 Geo IR 35.0 21.12 -109.01 21.12 -109.01 3.36 9.49 0.20 29.9 20170830 20:50:23 * AMSR2 85-92GHz 35.0 20.33 -109.17 20.35 -109.17 0.30 0.84 2.40 5.8 20170830 20:50:23 AMSR2 37GHz 35.0 20.23 -109.06 20.25 -109.07 0.32 0.91 0.70 ***
		20170830 18:00:00 Geo Vis 35.0 20.45 -108.99 20.45 -108.99 1.90 5.38 0.20 *** 20170830 18:00:00 Geo NearIR 35.0 19.78 -108.83 19.78 -108.83 0.63 1.79 0.10 *** 20170830 18:00:00 Geo IR 35.0 20.32 -109.23 20.32 -109.23 3.36 9.49 0.20 3.5

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