-- Link to ARCHER-ERC 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
20170824 18:47:17 AMSR2 85-92GHz 20.0 *** *** *** *** *** *** 1.20 ***
20170824 18:47:17 AMSR2 37GHz 20.0 24.31 102.50 24.30 102.87 0.53 1.50 0.20 ***
20170824 17:30:00 Geo NearIR 20.6 24.15 102.79 24.15 102.79 1.55 4.37 0.20 ***
20170824 17:30:00 Geo IR 20.6 24.15 102.71 24.15 102.71 1.24 3.52 0.20 59.0
20170824 14:30:00 * Geo NearIR 24.4 23.49 103.09 23.49 103.09 0.49 1.38 0.20 ***
20170824 14:30:00 Geo IR 24.4 23.79 103.33 23.79 103.33 2.33 6.59 0.50 27.6
20170824 11:30:00 Geo NearIR 28.1 23.24 103.99 23.24 103.99 1.33 3.76 0.80 ***
20170824 11:30:00 Geo IR 28.1 23.59 104.08 23.59 104.08 3.36 9.49 0.10 11.8
20170824 11:19:27 SSMIS-17 85-92GHz 28.3 *** *** *** *** *** *** 0.50 ***
20170824 08:30:00 Geo Vis 31.9 23.28 105.14 23.28 105.14 1.34 3.78 0.20 ***
20170824 08:30:00 Geo NearIR 31.9 22.88 105.30 22.88 105.30 2.06 5.82 0.50 ***
20170824 08:30:00 Geo IR 31.9 23.58 105.68 23.58 105.68 3.36 9.49 0.10 0.4
20170824 08:23:31 SSMIS-16 85-92GHz 32.0 *** *** *** *** *** *** 1.10 ***
20170824 06:38:28 AMSR2 85-92GHz 34.2 *** *** *** *** *** *** 0.30 ***
20170824 06:38:28 * AMSR2 37GHz 34.2 23.51 105.73 23.49 106.05 0.46 1.29 0.80 ***
20170824 05:30:00 Geo Vis 36.0 *** *** *** *** *** *** 0.60 ***
20170824 05:30:00 Geo NearIR 36.0 24.29 105.50 24.29 105.50 3.36 9.49 0.50 ***
20170824 05:30:00 Geo IR 36.0 *** *** *** *** *** *** 0.10 ***
20170824 03:09:00 Metop-B ASCAT 40.9 *** *** *** *** *** *** *** ***
20170824 02:30:00 Geo Vis 42.3 *** *** *** *** *** *** 0.20 ***
20170824 02:30:00 Geo NearIR 42.3 24.66 106.06 24.66 106.06 0.92 2.60 0.10 ***
20170824 02:30:00 Geo IR 42.3 *** *** *** *** *** *** 0.10 ***
20170824 02:15:00 Metop-A ASCAT 42.8 *** *** *** *** *** *** *** ***
20170824 00:03:38 * SSMIS-17 85-92GHz 47.4 23.46 107.50 23.43 107.65 0.37 1.05 0.30 6.8
20170823 23:30:00 Geo Vis 48.5 *** *** *** *** *** *** 0.20 ***
20170823 23:30:00 Geo NearIR 48.5 *** *** *** *** *** *** 0.40 ***
20170823 23:30:00 Geo IR 48.5 *** *** *** *** *** *** 0.70 ***
20170823 22:52:51 SSMIS-18 85-92GHz 49.8 *** *** *** *** *** *** 2.50 ***
20170823 22:46:39 GMI 85-92GHz 50.0 23.60 107.56 23.63 107.37 0.43 1.23 3.00 4.0
20170823 22:46:39 * GMI 37GHz 50.0 23.75 107.84 23.78 107.65 0.33 0.94 0.30 ***
20170823 21:07:21 SSMIS-16 85-92GHz 53.5 23.36 108.11 23.33 108.28 0.32 0.89 0.60 8.5
20170823 20:30:00 Geo NearIR 54.8 *** *** *** *** *** *** 0.20 ***
20170823 20:30:00 Geo IR 54.8 *** *** *** *** *** *** 0.10 ***
20170823 19:35:28 * SSMI-15 85-92GHz 56.7 23.68 108.57 23.73 108.33 0.28 0.80 0.20 18.9
20170823 18:04:11 AMSR2 85-92GHz 59.9 23.45 108.98 23.42 109.14 0.36 1.02 0.50 20.8
20170823 18:04:11 AMSR2 37GHz 59.9 23.35 109.09 23.32 109.25 0.53 1.51 2.70 ***
20170823 17:30:00 Geo NearIR 61.4 *** *** *** *** *** *** 0.20 ***
20170823 17:30:00 Geo IR 61.4 *** *** *** *** *** *** 0.50 ***
20170823 14:30:00 Geo NearIR 69.7 22.84 109.95 22.84 109.95 1.45 4.11 0.10 ***
20170823 14:30:00 Geo IR 69.7 *** *** *** *** *** *** 0.20 ***
20170823 11:30:00 Geo NearIR 78.1 22.60 110.71 22.60 110.71 1.58 4.48 0.10 ***
20170823 11:30:00 Geo IR 78.1 22.10 110.33 22.10 110.33 0.57 1.60 0.50 3.2
20170823 10:21:16 * SSMIS-18 85-92GHz 81.2 22.54 111.46 22.62 111.14 0.16 0.44 0.30 48.3
20170823 08:36:06 SSMIS-16 85-92GHz 85.0 22.47 111.94 22.47 111.96 0.17 0.49 0.90 1.7
20170823 08:30:00 Geo Vis 85.0 22.19 111.72 22.19 111.72 0.21 0.61 0.20 ***
20170823 08:30:00 Geo NearIR 85.0 22.19 111.96 22.19 111.96 0.34 0.95 0.80 ***
20170823 08:30:00 Geo IR 85.0 22.37 111.75 22.37 111.75 0.32 0.89 0.10 13.0
20170823 07:05:21 * SSMI-15 85-92GHz 85.0 22.08 112.28 22.17 111.91 0.14 0.40 0.10 5.6
20170823 05:54:50 AMSR2 85-92GHz 85.0 21.99 112.87 21.95 112.98 0.14 0.38 0.30 70.1
20170823 05:54:50 * AMSR2 37GHz 85.0 22.14 112.49 22.10 112.61 0.12 0.35 0.30 ***
20170823 05:30:00 Geo Vis 85.0 22.20 112.55 22.20 112.55 0.21 0.58 0.20 ***
20170823 05:30:00 Geo NearIR 85.0 22.05 112.80 22.05 112.80 0.27 0.75 0.80 ***
20170823 05:30:00 Geo IR 85.0 *** *** *** *** *** *** 0.50 ***
20170823 02:36:00 Metop-A ASCAT 85.0 21.71 113.10 21.70 113.13 0.45 1.27 *** ***
20170823 02:30:00 Geo Vis 85.0 *** *** *** *** *** *** 0.30 ***
20170823 02:30:00 Geo NearIR 85.0 21.65 113.83 21.65 113.83 0.18 0.52 0.20 ***
20170823 02:30:00 * Geo IR 85.0 21.80 113.69 21.80 113.69 0.16 0.45 0.10 69.2
20170823 01:48:00 Metop-B ASCAT 85.0 21.78 113.26 21.87 113.06 0.33 0.93 *** ***
20170822 23:30:00 Geo Vis 83.3 *** *** *** *** *** *** 0.70 ***
20170822 23:30:00 Geo NearIR 83.3 21.81 114.78 21.81 114.78 0.90 2.54 0.60 ***
20170822 23:30:00 Geo IR 83.3 *** *** *** *** *** *** 0.30 ***
20170822 23:05:24 * SSMIS-18 85-92GHz 82.0 21.43 114.62 21.46 114.51 0.07 0.20 0.80 100.0
20170822 22:36:05 SSMIS-17 85-92GHz 80.3 21.34 114.75 21.41 114.51 0.08 0.22 0.70 100.0
20170822 22:01:40 GMI 85-92GHz 78.4 *** *** *** *** *** *** 3.00 ***
20170822 22:01:40 GMI 37GHz 78.4 *** *** *** *** *** *** 3.00 ***
20170822 20:30:00 Geo NearIR 73.3 21.43 115.13 21.43 115.13 0.34 0.96 0.10 ***
20170822 20:30:00 Geo IR 73.3 21.26 115.40 21.26 115.40 1.15 3.26 0.10 6.7
20170822 17:30:00 Geo NearIR 65.0 20.81 116.11 20.81 116.11 1.07 3.03 0.10 ***
20170822 17:30:00 Geo IR 65.0 21.03 116.21 21.03 116.21 1.43 4.04 0.10 49.2
20170822 14:30:00 Geo NearIR 65.0 20.86 116.80 20.86 116.80 0.83 2.34 0.10 ***
20170822 14:30:00 Geo IR 65.0 20.99 116.72 20.99 116.72 0.50 1.43 0.30 59.2
20170822 11:30:00 Geo NearIR 64.6 *** *** *** *** *** *** 0.10 ***
20170822 11:30:00 Geo IR 64.6 19.94 117.58 19.94 117.58 1.56 4.42 0.10 6.3
20170822 10:32:59 * SSMIS-18 85-92GHz 63.8 20.51 117.69 20.57 117.48 0.09 0.25 0.70 100.0
20170822 10:03:56 SSMIS-17 85-92GHz 63.4 20.57 117.97 20.67 117.64 0.09 0.26 0.80 100.0
20170822 08:41:39 * GMI 85-92GHz 62.2 20.39 118.03 20.38 118.07 0.08 0.23 0.60 100.0
20170822 08:41:39 GMI 37GHz 62.2 20.39 118.03 20.38 118.07 0.11 0.32 0.30 ***
20170822 08:30:00 Geo Vis 62.1 20.58 117.88 20.58 117.88 0.19 0.55 0.50 ***
20170822 08:30:00 Geo NearIR 62.1 20.38 118.10 20.38 118.10 0.73 2.08 0.30 ***
20170822 08:30:00 Geo IR 62.1 20.50 118.02 20.50 118.02 0.18 0.52 0.40 97.9
20170822 05:30:00 Geo Vis 58.7 20.38 118.78 20.38 118.78 0.10 0.29 0.30 ***
20170822 05:30:00 Geo NearIR 58.7 20.35 118.89 20.35 118.89 1.56 4.40 0.50 ***
20170822 05:30:00 Geo IR 58.7 *** *** *** *** *** *** 0.70 ***
20170822 05:11:27 * AMSR2 85-92GHz 58.0 20.25 119.04 20.25 118.97 0.10 0.27 0.90 100.0
20170822 05:11:27 AMSR2 37GHz 58.0 20.45 118.99 20.45 118.92 0.13 0.37 0.30 ***
20170822 02:30:00 Geo Vis 51.2 21.95 118.68 21.95 118.68 2.99 8.44 0.10 ***
20170822 02:30:00 Geo NearIR 51.2 19.85 119.56 19.85 119.56 3.36 9.49 0.30 ***
20170822 02:30:00 Geo IR 51.2 *** *** *** *** *** *** 0.80 ***
20170822 02:09:00 Metop-B ASCAT 50.4 20.15 119.47 20.15 119.40 0.18 0.51 *** ***
20170822 01:15:00 * Metop-A ASCAT 48.1 20.15 119.67 20.15 119.40 0.17 0.47 *** ***
20170821 23:30:00 Geo Vis 45.0 *** *** *** *** *** *** 0.70 ***
20170821 23:30:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.90 ***
20170821 23:30:00 Geo IR 45.0 *** *** *** *** *** *** 0.60 ***
20170821 22:49:23 SSMIS-17 85-92GHz 45.0 20.97 119.97 20.98 119.80 0.38 1.08 2.70 13.5
20170821 20:30:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.20 ***
20170821 20:30:00 Geo IR 45.0 *** *** *** *** *** *** 1.00 ***
20170821 19:53:02 * SSMIS-16 85-92GHz 45.0 21.01 120.44 21.03 120.28 0.32 0.90 3.00 23.8
20170821 18:26:41 SSMI-15 85-92GHz 45.0 21.00 121.41 21.01 121.64 0.38 1.08 2.90 6.5
20170821 17:30:00 Geo NearIR 44.2 *** *** *** *** *** *** 0.20 ***
20170821 17:30:00 Geo IR 44.2 *** *** *** *** *** *** 0.10 ***
20170821 14:30:00 Geo NearIR 39.2 *** *** *** *** *** *** 0.50 ***
20170821 14:30:00 Geo IR 39.2 *** *** *** *** *** *** 0.10 ***
20170821 13:42:00 Metop-B ASCAT 37.8 *** *** *** *** *** *** *** ***
20170821 12:48:00 * Metop-A ASCAT 35.3 20.64 122.44 20.66 122.69 0.34 0.97 *** ***
20170821 11:30:00 Geo NearIR 35.0 20.90 124.12 20.90 124.12 0.66 1.88 0.40 ***
20170821 11:30:00 Geo IR 35.0 21.03 124.07 21.03 124.07 3.19 9.03 1.00 1.0
20170821 10:16:57 SSMIS-17 85-92GHz 35.0 20.86 123.29 20.90 123.09 0.52 1.46 3.00 1.6
20170821 08:30:00 Geo Vis 35.0 *** *** *** *** *** *** 0.50 ***
20170821 08:30:00 Geo NearIR 35.0 20.16 124.63 20.16 124.63 2.20 6.23 0.50 ***
20170821 08:30:00 Geo IR 35.0 20.56 124.31 20.56 124.31 3.36 9.49 0.50 2.1
20170821 07:20:04 SSMIS-16 85-92GHz 35.0 20.50 123.62 20.57 123.46 0.63 1.78 2.50 0.1
20170821 05:55:31 * SSMI-15 85-92GHz 35.0 20.55 123.70 20.52 123.78 0.43 1.22 2.80 3.0
20170821 05:30:00 Geo Vis 35.0 21.03 124.21 21.03 124.21 1.62 4.58 0.60 ***
20170821 05:30:00 Geo NearIR 35.0 20.88 124.13 20.88 124.13 3.36 9.49 0.90 ***
20170821 05:30:00 Geo IR 35.0 21.05 124.29 21.05 124.29 3.36 9.49 0.70 47.7
20170821 02:30:00 Geo Vis 35.0 *** *** *** *** *** *** 0.30 ***
20170821 02:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 1.00 ***
20170821 02:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.50 ***
20170821 01:36:00 Metop-A ASCAT 35.0 20.10 124.83 20.16 124.66 0.14 0.39 *** ***
20170821 00:51:00 * Metop-B ASCAT 35.0 20.02 124.94 19.98 124.98 0.12 0.33 *** ***
20170820 23:30:00 Geo Vis 35.0 20.29 125.98 20.29 125.98 0.55 1.55 0.10 ***
20170820 23:30:00 Geo NearIR 35.0 20.99 124.97 20.99 124.97 1.13 3.19 0.50 ***
20170820 23:30:00 Geo IR 35.0 21.19 125.07 21.19 125.07 3.36 9.49 1.00 8.5
20170820 22:11:39 GMI 85-92GHz 35.0 19.86 125.34 19.89 125.42 0.48 1.36 1.00 3.4
20170820 22:11:39 GMI 37GHz 35.0 *** *** *** *** *** *** 1.80 ***
20170820 21:49:31 SSMIS-18 85-92GHz 35.0 20.45 124.93 20.42 124.80 0.46 1.29 3.00 3.7
20170820 20:30:00 Geo NearIR 35.0 20.22 126.51 20.22 126.51 1.03 2.90 0.90 ***
20170820 20:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.30 ***
20170820 20:05:56 SSMIS-16 85-92GHz 35.0 20.42 125.03 20.42 125.07 0.45 1.28 3.00 4.2
20170820 18:42:39 * SSMI-15 85-92GHz 35.0 20.40 125.20 20.42 125.21 0.35 0.98 2.50 8.2
20170820 17:33:51 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 2.50 ***
20170820 17:33:51 AMSR2 37GHz 35.0 20.07 125.45 20.07 125.45 0.39 1.11 1.60 ***
20170820 17:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.80 ***
20170820 17:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.40 ***
20170820 14:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.30 ***
20170820 14:30:00 Geo IR 35.0 *** *** *** *** *** *** 1.00 ***
20170820 13:09:00 * Metop-A ASCAT 35.0 19.28 126.26 18.95 125.67 0.20 0.55 *** ***
20170820 12:21:00 * Metop-B ASCAT 35.0 19.42 126.48 19.42 126.76 0.19 0.55 *** ***
20170820 11:30:00 Geo NearIR 34.6 *** *** *** *** *** *** 0.70 ***
20170820 11:30:00 Geo IR 34.6 *** *** *** *** *** *** 1.00 ***
20170820 09:16:27 SSMIS-18 85-92GHz 32.7 21.13 127.12 21.02 127.40 0.34 0.95 0.50 43.2
20170820 08:56:39 * GMI 85-92GHz 32.5 21.19 127.20 21.12 127.35 0.34 0.95 0.60 25.9
20170820 08:56:39 GMI 37GHz 32.5 *** *** *** *** *** *** 0.20 ***
20170820 08:30:00 Geo Vis 32.1 *** *** *** *** *** *** 0.10 ***
20170820 08:30:00 Geo NearIR 32.1 *** *** *** *** *** *** 0.70 ***
20170820 08:30:00 Geo IR 32.1 *** *** *** *** *** *** 1.00 ***
20170820 07:32:34 SSMIS-16 85-92GHz 31.3 20.94 128.06 21.09 127.78 0.44 1.24 1.40 2.1
20170820 06:11:11 SSMI-15 85-92GHz 30.0 20.86 128.13 20.78 128.10 0.43 1.21 0.80 3.1
20170820 05:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.20 ***
20170820 05:30:00 Geo NearIR 30.0 21.09 129.33 21.09 129.33 3.36 9.49 0.20 ***
20170820 05:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.10 ***
20170820 02:30:00 * Geo Vis 30.0 18.70 126.70 18.70 126.70 0.21 0.58 0.10 ***
20170820 02:30:00 Geo NearIR 30.0 18.45 126.78 18.45 126.78 0.66 1.87 0.30 ***
20170820 02:30:00 Geo IR 30.0 18.47 126.70 18.47 126.70 1.31 3.69 0.30 47.8
20170819 23:30:00 Geo Vis 29.2 *** *** *** *** *** *** 0.20 ***
20170819 23:30:00 Geo NearIR 29.2 *** *** *** *** *** *** 0.60 ***
20170819 23:30:00 Geo IR 29.2 *** *** *** *** *** *** 0.50 ***
20170819 22:01:33 SSMIS-18 85-92GHz 26.7 *** *** *** *** *** *** 1.70 ***
20170819 21:34:52 SSMIS-17 85-92GHz 26.0 *** *** *** *** *** *** 3.00 ***
20170819 20:30:00 Geo NearIR 24.2 *** *** *** *** *** *** 0.10 ***
20170819 20:30:00 Geo IR 24.2 *** *** *** *** *** *** 0.20 ***
20170819 17:30:00 Geo NearIR 20.0 *** *** *** *** *** *** 0.10 ***
20170819 17:30:00 Geo IR 20.0 *** *** *** *** *** *** 0.90 ***
20170819 16:50:50 AMSR2 85-92GHz 20.0 20.16 128.31 20.13 128.07 0.58 1.64 1.00 1.2
20170819 16:50:50 * AMSR2 37GHz 20.0 19.86 130.39 19.83 130.15 0.40 1.12 1.80 ***

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

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