-- 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
20200408 05:28:38 * SSMIS-18 85-92GHz 118.6 -19.81 179.53 -19.82 179.54 0.13 0.36 0.60 100.0
20200408 00:06:39 * GMI 85-92GHz 120.0 -19.51 176.68 -19.44 176.48 0.16 0.45 3.00 0.0
20200408 00:06:39 GMI 37GHz 120.0 *** *** *** *** *** *** 3.00 ***
20200407 21:57:00 Metop-B ASCAT 116.6 -18.68 176.51 -18.55 176.05 0.35 0.98 *** ***
20200407 18:19:45 * SSMIS-17 85-92GHz 110.0 -18.25 176.06 -18.14 175.81 0.14 0.38 0.50 87.8
20200407 16:55:03 SSMIS-18 85-92GHz 110.0 -18.08 175.56 -18.17 175.74 0.13 0.36 0.60 98.9
20200407 16:40:09 * SSMIS-16 85-92GHz 110.0 -18.09 175.54 -18.22 175.80 0.11 0.32 0.70 100.0
20200407 14:16:40 GMI 85-92GHz 110.0 *** *** *** *** *** *** 3.00 ***
20200407 14:16:40 * GMI 37GHz 110.0 -17.77 174.68 -17.81 174.75 0.13 0.38 0.30 ***
20200407 09:33:00 Metop-A ASCAT 110.0 *** *** *** *** *** *** *** ***
20200407 07:07:21 * SSMIS-17 85-92GHz 110.0 -17.20 173.00 -17.26 173.30 0.11 0.31 0.90 99.7
20200407 05:42:06 * SSMIS-18 85-92GHz 110.2 -17.03 172.63 -17.01 172.58 0.12 0.34 1.00 89.3
20200407 05:30:00 Geo Vis 110.4 *** *** *** *** *** *** 1.00 ***
20200407 02:39:54 * AMSR2 85-92GHz 112.8 -16.80 171.76 -16.79 171.73 0.10 0.29 0.10 100.0
20200407 02:39:54 AMSR2 37GHz 112.8 -16.85 171.76 -16.84 171.73 0.12 0.35 0.70 ***
20200407 02:30:00 Geo Vis 112.9 -16.74 171.36 -16.74 171.36 0.11 0.32 0.70 ***
20200407 02:30:00 Geo NearIR 112.9 *** *** *** *** *** *** 1.00 ***
20200407 02:30:00 Geo IR 112.9 -16.99 171.36 -16.99 171.36 0.15 0.42 0.70 8.9
20200407 00:56:40 GMI 85-92GHz 115.0 -16.65 171.40 -16.58 171.05 0.12 0.33 1.00 97.6
20200407 00:56:40 GMI 37GHz 115.0 -16.65 171.50 -16.58 171.15 0.16 0.45 1.00 ***
20200406 23:30:00 * Geo Vis 116.7 -16.55 171.15 -16.55 171.15 0.09 0.24 0.10 ***
20200406 23:30:00 Geo NearIR 116.7 -16.28 170.89 -16.28 170.89 0.20 0.56 0.10 ***
20200406 23:30:00 Geo IR 116.7 -16.48 170.96 -16.48 170.96 0.16 0.44 0.10 49.8
20200406 22:15:00 Metop-B ASCAT 120.8 -16.49 170.63 -16.53 170.96 0.17 0.48 *** ***
20200406 21:00:00 Metop-A ASCAT 125.0 *** *** *** *** *** *** *** ***
20200406 20:30:00 Geo Vis 126.7 -16.31 170.50 -16.31 170.50 0.15 0.44 0.10 ***
20200406 20:30:00 Geo NearIR 126.7 -16.41 170.37 -16.41 170.37 0.32 0.91 0.20 ***
20200406 20:30:00 Geo IR 126.7 -16.26 170.19 -16.26 170.19 0.15 0.42 0.10 8.4
20200406 17:30:00 * Geo NearIR 135.8 -16.74 169.30 -16.74 169.30 0.09 0.26 0.10 ***
20200406 17:30:00 Geo IR 135.8 -16.59 169.40 -16.59 169.40 0.16 0.44 0.10 37.8
20200406 17:07:23 SSMIS-18 85-92GHz 136.5 -16.28 169.55 -16.31 169.61 0.10 0.29 0.20 100.0
20200406 16:52:52 SSMIS-16 85-92GHz 136.9 -16.31 169.45 -16.35 169.56 0.11 0.30 0.20 100.0
20200406 14:30:00 Geo NearIR 140.8 -15.63 168.33 -15.63 168.33 3.22 9.11 0.10 ***
20200406 14:30:00 Geo IR 140.8 -15.91 168.90 -15.91 168.90 0.40 1.13 1.00 1.0
20200406 14:27:22 * AMSR2 85-92GHz 140.9 -16.13 169.15 -16.13 169.16 0.10 0.28 0.20 100.0
20200406 14:27:22 AMSR2 37GHz 140.9 -16.13 169.36 -16.13 169.37 0.12 0.34 0.20 ***
20200406 11:30:00 Geo NearIR 144.2 *** *** *** *** *** *** 0.10 ***
20200406 11:30:00 Geo IR 144.2 -15.98 168.61 -15.98 168.61 0.34 0.96 0.20 97.2
20200406 09:54:00 Metop-A ASCAT 141.5 -15.62 168.13 -15.58 167.89 0.20 0.55 *** ***
20200406 08:30:00 Geo NearIR 139.2 *** *** *** *** *** *** 0.10 ***
20200406 08:30:00 * Geo IR 139.2 -15.93 168.21 -15.93 168.21 0.10 0.27 0.20 100.0
20200406 07:21:15 SSMIS-17 85-92GHz 137.3 -15.80 168.08 -15.83 168.27 0.10 0.29 0.10 100.0
20200406 05:55:11 SSMIS-18 85-92GHz 134.7 -15.80 167.79 -15.78 167.71 0.10 0.29 0.20 100.0
20200406 05:30:00 Geo Vis 133.3 -15.87 166.93 -15.87 166.93 0.23 0.65 0.30 ***
20200406 05:30:00 Geo NearIR 133.3 -15.77 167.74 -15.77 167.74 0.23 0.66 0.30 ***
20200406 05:30:00 Geo IR 133.3 -15.70 167.71 -15.70 167.71 0.13 0.37 0.30 100.0
20200406 02:30:00 * Geo Vis 123.3 -15.82 167.27 -15.82 167.27 0.06 0.17 0.50 ***
20200406 02:30:00 Geo NearIR 123.3 -15.59 167.27 -15.59 167.27 0.59 1.68 0.50 ***
20200406 02:30:00 Geo IR 123.3 -15.59 167.22 -15.59 167.22 0.18 0.50 0.10 68.6
20200406 01:51:39 GMI 85-92GHz 121.2 *** *** *** *** *** *** 0.30 ***
20200406 01:51:39 GMI 37GHz 121.2 *** *** *** *** *** *** 1.00 ***
20200405 23:30:00 * Geo Vis 115.8 -15.63 166.93 -15.63 166.93 0.10 0.28 0.20 ***
20200405 23:30:00 Geo NearIR 115.8 -15.58 166.77 -15.58 166.77 1.55 4.39 0.10 ***
20200405 23:30:00 Geo IR 115.8 -15.53 166.77 -15.53 166.77 0.42 1.18 0.20 52.2
20200405 22:36:00 Metop-B ASCAT 117.3 -15.54 166.39 -15.58 166.49 0.21 0.60 *** ***
20200405 20:30:00 * Geo Vis 120.8 -15.55 166.57 -15.55 166.57 0.09 0.25 0.40 ***
20200405 20:30:00 Geo NearIR 120.8 -15.60 166.49 -15.60 166.49 0.16 0.47 0.10 ***
20200405 20:30:00 Geo IR 120.8 -15.50 166.51 -15.50 166.51 0.13 0.38 0.30 98.6
20200405 17:30:00 Geo NearIR 124.6 -15.13 165.77 -15.13 165.77 2.61 7.38 0.10 ***
20200405 17:30:00 Geo IR 124.6 -15.41 166.21 -15.41 166.21 0.13 0.38 0.30 81.8
20200405 17:19:56 * SSMIS-18 85-92GHz 124.4 -15.26 166.14 -15.26 166.16 0.09 0.26 0.30 100.0
20200405 17:05:46 SSMIS-16 85-92GHz 124.2 -15.32 166.06 -15.31 166.10 0.10 0.27 0.30 100.0
20200405 14:30:00 Geo NearIR 122.1 -15.71 166.22 -15.71 166.22 0.29 0.81 0.20 ***
20200405 14:30:00 * Geo IR 122.1 -15.36 165.99 -15.36 165.99 0.12 0.34 0.50 69.3
20200405 11:30:00 Geo NearIR 118.3 -16.02 166.13 -16.02 166.13 0.23 0.66 0.10 ***
20200405 11:30:00 * Geo IR 118.3 -15.43 165.66 -15.43 165.66 0.12 0.33 0.30 88.0
20200405 10:15:00 Metop-A ASCAT 114.2 -15.35 165.45 -15.35 165.48 0.15 0.43 *** ***
20200405 08:30:00 Geo NearIR 108.3 -15.50 165.39 -15.50 165.39 0.45 1.29 0.10 ***
20200405 08:30:00 Geo IR 108.3 -15.62 165.23 -15.62 165.23 0.16 0.46 0.70 4.6
20200405 07:34:45 * SSMIS-17 85-92GHz 105.3 -15.65 165.46 -15.65 165.47 0.11 0.31 0.40 100.0
20200405 06:07:54 * SSMIS-18 85-92GHz 100.1 -15.75 165.55 -15.75 165.56 0.10 0.28 0.30 100.0
20200405 05:30:00 Geo Vis 100.4 -15.59 165.61 -15.59 165.61 0.27 0.75 0.50 ***
20200405 05:30:00 Geo NearIR 100.4 -15.36 165.46 -15.36 165.46 0.44 1.24 0.20 ***
20200405 05:30:00 Geo IR 100.4 -15.31 165.20 -15.31 165.20 0.17 0.47 0.60 3.8
20200405 02:52:44 AMSR2 85-92GHz 102.6 -15.66 165.45 -15.65 165.49 0.11 0.32 0.70 100.0
20200405 02:52:44 AMSR2 37GHz 102.6 -15.51 165.45 -15.50 165.49 0.12 0.35 0.30 ***
20200405 02:30:00 * Geo Vis 102.9 -15.63 165.80 -15.63 165.80 0.11 0.30 0.80 ***
20200405 02:30:00 Geo NearIR 102.9 -15.55 166.09 -15.55 166.09 0.35 1.00 0.10 ***
20200405 02:30:00 Geo IR 102.9 -15.50 165.72 -15.50 165.72 0.28 0.79 0.60 42.2
20200404 23:30:00 * Geo Vis 105.8 -15.57 166.01 -15.57 166.01 0.10 0.28 0.60 ***
20200404 23:30:00 Geo NearIR 105.8 -15.47 165.85 -15.47 165.85 3.36 9.49 0.50 ***
20200404 23:30:00 Geo IR 105.8 -15.40 165.77 -15.40 165.77 0.21 0.60 0.40 12.1
20200404 21:42:00 Metop-A ASCAT 108.8 *** *** *** *** *** *** *** ***
20200404 20:30:00 Geo Vis 110.8 *** *** *** *** *** *** 0.90 ***
20200404 20:30:00 Geo NearIR 110.8 -15.46 166.02 -15.46 166.02 0.26 0.73 0.40 ***
20200404 20:30:00 Geo IR 110.8 -15.11 165.71 -15.11 165.71 0.17 0.47 0.40 25.8
20200404 18:59:17 SSMIS-17 85-92GHz 113.4 -15.32 165.72 -15.22 165.62 0.13 0.38 0.20 68.3
20200404 17:32:21 SSMIS-18 85-92GHz 115.0 -15.08 165.69 -15.08 165.68 0.13 0.37 0.30 86.6
20200404 17:30:00 Geo NearIR 115.0 -15.30 166.02 -15.30 166.02 0.46 1.29 0.20 ***
20200404 17:30:00 Geo IR 115.0 -14.98 165.63 -14.98 165.63 0.21 0.59 0.50 7.3
20200404 17:18:40 * SSMIS-16 85-92GHz 115.0 -15.07 165.67 -15.08 165.69 0.12 0.35 0.20 92.8
20200404 15:16:40 GMI 85-92GHz 115.0 -14.97 165.59 -14.94 165.54 0.11 0.32 0.90 87.2
20200404 15:16:40 GMI 37GHz 115.0 -14.77 165.49 -14.74 165.43 0.12 0.35 0.20 ***
20200404 14:39:25 * AMSR2 85-92GHz 115.0 -14.74 165.44 -14.73 165.43 0.12 0.34 0.20 100.0
20200404 14:39:25 AMSR2 37GHz 115.0 -14.69 165.39 -14.68 165.38 0.12 0.34 0.20 ***
20200404 14:30:00 Geo NearIR 115.0 -14.88 166.09 -14.88 166.09 0.31 0.86 0.10 ***
20200404 14:30:00 Geo IR 115.0 -14.66 165.55 -14.66 165.55 0.13 0.36 0.50 45.3
20200404 11:30:00 Geo NearIR 114.6 -14.28 165.26 -14.28 165.26 3.36 9.49 0.30 ***
20200404 11:30:00 Geo IR 114.6 -14.43 165.24 -14.43 165.24 0.18 0.51 0.90 6.3
20200404 10:09:00 Metop-B ASCAT 113.5 -14.36 164.91 -14.43 164.97 0.17 0.49 *** ***
20200404 08:30:00 Geo NearIR 112.1 -14.09 165.39 -14.09 165.39 0.44 1.24 0.10 ***
20200404 08:30:00 * Geo IR 112.1 -14.26 165.06 -14.26 165.06 0.11 0.32 0.40 44.4
20200404 07:48:19 SSMIS-17 85-92GHz 111.5 -14.50 165.12 -14.53 165.16 0.14 0.39 1.00 10.4
20200404 06:20:23 SSMIS-18 85-92GHz 110.0 -14.36 164.87 -14.32 164.80 0.11 0.32 0.10 99.1
20200404 05:30:00 Geo Vis 108.3 -14.25 164.84 -14.25 164.84 0.12 0.35 0.10 ***
20200404 05:30:00 Geo NearIR 108.3 -14.25 165.23 -14.25 165.23 0.18 0.50 0.80 ***
20200404 05:30:00 * Geo IR 108.3 -14.23 164.82 -14.23 164.82 0.11 0.31 0.10 100.0
20200404 02:30:00 * Geo Vis 98.3 -14.11 164.73 -14.11 164.73 0.12 0.33 0.50 ***
20200404 02:30:00 Geo NearIR 98.3 -14.68 165.50 -14.68 165.50 2.56 7.24 1.00 ***
20200404 02:30:00 Geo IR 98.3 -13.98 164.57 -13.98 164.57 0.17 0.47 0.10 74.7
20200404 02:10:18 AMSR2 85-92GHz 97.2 *** *** *** *** *** *** 3.00 ***
20200404 02:10:18 AMSR2 37GHz 97.2 *** *** *** *** *** *** 3.00 ***
20200403 23:30:00 * Geo Vis 87.5 -13.92 164.45 -13.92 164.45 0.11 0.30 0.60 ***
20200403 23:30:00 Geo NearIR 87.5 -14.24 164.86 -14.24 164.86 0.38 1.08 0.70 ***
20200403 23:30:00 Geo IR 87.5 -13.89 164.16 -13.89 164.16 0.14 0.39 0.10 92.6
20200403 22:03:00 Metop-A ASCAT 80.2 -13.68 163.84 -13.77 163.89 0.14 0.39 *** ***
20200403 20:30:00 Geo Vis 72.5 -13.86 163.98 -13.86 163.98 0.11 0.30 0.50 ***
20200403 20:30:00 Geo NearIR 72.5 -13.89 164.11 -13.89 164.11 0.29 0.82 0.30 ***
20200403 20:30:00 * Geo IR 72.5 -13.84 163.95 -13.84 163.95 0.10 0.29 0.40 49.6
20200403 19:12:22 SSMIS-17 85-92GHz 66.0 -13.75 163.86 -13.84 163.89 0.13 0.37 0.30 98.0
20200403 17:44:39 SSMIS-18 85-92GHz 59.8 -13.38 163.82 -13.35 163.80 0.22 0.62 0.20 67.7
20200403 17:31:21 SSMIS-16 85-92GHz 59.6 -13.45 163.80 -13.45 163.80 0.17 0.48 0.20 84.0
20200403 17:30:00 Geo NearIR 59.6 -13.58 164.02 -13.58 164.02 0.25 0.70 0.10 ***
20200403 17:30:00 * Geo IR 59.6 -13.48 164.00 -13.48 164.00 0.15 0.41 0.40 0.0
20200403 14:30:00 Geo NearIR 57.1 -13.24 163.67 -13.24 163.67 0.40 1.12 0.10 ***
20200403 14:30:00 Geo IR 57.1 -13.06 163.42 -13.06 163.42 0.22 0.62 0.40 43.4
20200403 11:30:00 Geo NearIR 53.7 *** *** *** *** *** *** 0.10 ***
20200403 11:30:00 * Geo IR 53.7 -12.92 162.97 -12.92 162.97 0.09 0.26 0.20 2.5
20200403 10:30:00 Metop-B ASCAT 51.2 -12.78 162.65 -12.98 162.72 0.17 0.47 *** ***
20200403 08:30:00 Geo NearIR 46.2 -11.49 162.02 -11.49 162.02 1.34 3.80 0.10 ***
20200403 08:30:00 Geo IR 46.2 -12.44 162.64 -12.44 162.64 0.57 1.62 0.30 0.4
20200403 08:02:03 SSMIS-17 85-92GHz 45.1 -12.20 162.66 -12.31 162.68 0.15 0.42 0.40 73.5
20200403 06:26:31 SSMIS-18 85-92GHz 40.4 -11.97 162.11 -11.79 162.01 0.20 0.55 1.30 2.1
20200403 05:30:00 Geo Vis 40.0 -11.47 161.43 -11.47 161.43 0.26 0.72 0.10 ***
20200403 05:30:00 Geo NearIR 40.0 -11.45 161.53 -11.45 161.53 1.12 3.17 0.80 ***
20200403 05:30:00 * Geo IR 40.0 -11.80 161.68 -11.80 161.68 0.12 0.33 0.20 11.3
20200403 03:06:28 AMSR2 85-92GHz 40.0 -11.41 161.61 -11.31 161.50 0.51 1.43 0.30 10.2
20200403 03:06:28 AMSR2 37GHz 40.0 -11.41 161.55 -11.31 161.45 0.45 1.27 1.80 ***
20200403 02:51:39 GMI 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***
20200403 02:51:39 GMI 37GHz 40.0 *** *** *** *** *** *** 3.00 ***
20200403 02:30:00 Geo Vis 40.0 -11.06 161.25 -11.06 161.25 0.69 1.96 0.90 ***
20200403 02:30:00 Geo NearIR 40.0 -10.38 160.56 -10.38 160.56 1.12 3.17 0.10 ***
20200403 02:30:00 Geo IR 40.0 -11.11 161.83 -11.11 161.83 3.36 9.49 0.10 -0.0
20200402 23:30:00 Geo Vis 39.6 *** *** *** *** *** *** 0.40 ***
20200402 23:30:00 Geo NearIR 39.6 -10.00 159.98 -10.00 159.98 0.62 1.74 1.00 ***
20200402 23:30:00 Geo IR 39.6 -10.05 160.71 -10.05 160.71 2.51 7.08 0.20 13.3
20200402 22:24:00 Metop-A ASCAT 38.7 -11.34 161.21 -11.46 161.51 0.39 1.11 *** ***
20200402 20:30:00 Geo Vis 37.1 -10.56 158.82 -10.56 158.82 0.36 1.01 0.60 ***
20200402 20:30:00 Geo NearIR 37.1 -9.43 159.40 -9.43 159.40 0.63 1.79 0.20 ***
20200402 20:30:00 Geo IR 37.1 -9.63 160.09 -9.63 160.09 2.03 5.72 0.50 3.1
20200402 19:24:53 * SSMIS-17 85-92GHz 36.2 -9.70 159.77 -9.78 160.20 0.19 0.53 3.00 0.0
20200402 17:56:23 SSMIS-18 85-92GHz 35.0 -9.84 159.74 -9.81 159.59 0.43 1.20 1.20 6.4
20200402 17:43:31 SSMIS-16 85-92GHz 35.0 -9.76 159.76 -9.74 159.68 0.39 1.09 0.90 33.2
20200402 17:30:00 Geo NearIR 35.0 -10.11 159.02 -10.11 159.02 0.45 1.28 0.10 ***
20200402 17:30:00 Geo IR 35.0 -9.96 158.84 -9.96 158.84 3.36 9.49 0.60 4.6

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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