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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
20190108 09:02:08 SSMIS-17 85-92GHz 30.0 *** *** *** *** *** *** 1.80 ***
20190108 08:15:17 * SSMIS-18 85-92GHz 30.0 -20.18 150.15 -20.19 150.12 0.59 1.67 1.70 0.6
20190108 06:35:20 SSMIS-16 85-92GHz 30.0 -19.79 150.02 -19.77 150.14 0.64 1.80 3.00 0.0
20190108 04:41:40 * GMI 85-92GHz 30.0 -19.90 150.27 -19.92 150.19 0.36 1.02 1.80 2.9
20190108 04:41:40 GMI 37GHz 30.0 -19.90 150.17 -19.92 150.08 0.59 1.68 0.90 ***
20190108 04:11:21 AMSR2 85-92GHz 30.0 -19.88 150.12 -19.92 149.98 0.61 1.71 3.00 0.0
20190108 04:11:21 AMSR2 37GHz 30.0 -19.83 150.28 -19.87 150.14 0.51 1.43 3.00 ***
20190107 20:28:51 SSMIS-17 85-92GHz 32.9 -18.51 150.88 -18.51 150.88 0.44 1.25 2.20 1.4
20190107 19:41:22 * SSMIS-18 85-92GHz 33.6 -18.55 150.51 -18.61 150.46 0.35 0.98 1.40 4.8
20190107 18:01:50 SSMIS-16 85-92GHz 35.0 -18.65 151.15 -18.63 151.19 0.39 1.11 1.80 2.0
20190107 15:21:40 GMI 85-92GHz 37.2 *** *** *** *** *** *** 3.00 ***
20190107 15:21:40 * GMI 37GHz 37.2 -18.67 151.74 -18.65 151.81 0.38 1.07 3.00 ***
20190107 03:28:41 * AMSR2 85-92GHz 40.0 -18.73 151.85 -18.63 152.00 0.12 0.35 3.00 0.0
20190107 03:28:41 AMSR2 37GHz 40.0 -17.98 152.48 -17.88 152.63 0.34 0.96 1.90 ***
20190106 20:41:52 * SSMIS-17 85-92GHz 37.2 -18.60 153.24 -18.59 153.28 0.27 0.75 3.00 0.0
20190106 15:16:32 AMSR2 85-92GHz 35.0 -17.06 154.52 -16.97 154.54 0.29 0.82 2.60 5.6
20190106 15:16:32 * AMSR2 37GHz 35.0 -17.21 154.47 -17.12 154.49 0.28 0.79 2.80 ***
20190106 04:51:40 * GMI 85-92GHz 40.9 -16.96 154.77 -16.95 154.69 0.25 0.70 2.70 3.8
20190106 04:51:40 GMI 37GHz 40.9 -17.41 154.35 -17.40 154.27 0.30 0.86 2.80 ***
20190105 08:01:43 * SSMIS-17 85-92GHz 40.0 -16.48 155.29 -16.48 155.32 0.18 0.52 3.00 -0.8
20190105 07:11:59 SSMIS-18 85-92GHz 40.0 -16.50 155.28 -16.52 155.37 0.33 0.93 3.00 -0.2
20190105 05:34:16 * SSMIS-16 85-92GHz 40.0 -16.60 154.91 -16.60 154.91 0.21 0.58 3.00 0.0
20190104 23:33:00 Metop-B ASCAT 40.4 *** *** *** *** *** *** *** ***
20190104 22:24:00 * Metop-A ASCAT 41.3 -15.92 155.63 -15.91 155.58 0.12 0.35 *** ***
20190104 18:36:53 * SSMIS-18 85-92GHz 45.0 -16.75 156.67 -16.78 156.68 0.25 0.69 2.20 32.4
20190104 16:59:02 SSMIS-16 85-92GHz 45.0 -15.76 156.21 -15.75 156.21 0.56 1.59 1.90 0.7
20190104 16:26:40 * GMI 85-92GHz 45.0 -15.63 155.85 -15.59 155.85 0.32 0.92 1.90 7.0
20190104 16:26:40 GMI 37GHz 45.0 -15.83 155.69 -15.79 155.69 0.40 1.12 1.10 ***
20190104 11:18:00 * Metop-A ASCAT 45.6 -15.90 155.87 -15.90 155.86 0.13 0.38 *** ***
20190104 10:42:00 Metop-B ASCAT 46.1 -15.86 155.94 -15.84 155.92 0.16 0.44 *** ***
20190104 08:15:19 SSMIS-17 85-92GHz 48.1 *** *** *** *** *** *** 1.10 ***
20190104 07:24:43 SSMIS-18 85-92GHz 48.8 -15.84 155.77 -15.82 155.72 0.28 0.79 1.30 1.8
20190104 05:47:00 SSMIS-16 85-92GHz 50.2 -16.95 156.67 -16.95 156.67 0.49 1.39 2.60 -0.1
20190104 02:58:21 * AMSR2 85-92GHz 52.5 -16.58 156.47 -16.56 156.44 0.25 0.70 0.20 35.1
20190104 02:58:21 AMSR2 37GHz 52.5 -16.03 155.79 -16.01 155.77 0.44 1.24 0.60 ***
20190103 22:45:00 Metop-A ASCAT 55.0 *** *** *** *** *** *** *** ***
20190103 19:40:18 * SSMIS-17 85-92GHz 55.0 -16.35 155.80 -16.41 155.80 0.15 0.43 1.50 90.8
20190103 18:49:23 * SSMIS-18 85-92GHz 55.0 -16.23 156.13 -16.16 156.11 0.17 0.47 1.80 81.8
20190103 14:45:26 * AMSR2 85-92GHz 52.3 -15.85 155.72 -15.84 155.64 0.21 0.59 1.70 86.3
20190103 14:45:26 AMSR2 37GHz 52.3 -15.55 155.51 -15.54 155.43 0.29 0.83 0.50 ***
20190103 11:39:00 Metop-A ASCAT 49.4 *** *** *** *** *** *** *** ***
20190103 11:06:00 Metop-B ASCAT 48.5 *** *** *** *** *** *** *** ***
20190103 11:03:00 * Metop-B ASCAT 48.4 -15.30 154.79 -15.33 154.87 0.14 0.38 *** ***
20190103 08:28:46 * SSMIS-17 85-92GHz 44.1 -15.35 155.00 -15.35 155.00 0.19 0.55 0.10 60.9
20190103 07:37:41 SSMIS-18 85-92GHz 42.7 -15.23 154.60 -15.30 154.73 0.25 0.70 2.80 53.6
20190103 06:00:35 SSMIS-16 85-92GHz 40.0 -14.90 154.12 -14.86 154.02 0.40 1.12 0.60 7.6
20190103 05:51:39 GMI 85-92GHz 40.0 -14.94 154.40 -14.91 154.33 0.32 0.92 2.60 8.3
20190103 05:51:39 GMI 37GHz 40.0 -14.89 153.94 -14.86 153.87 0.41 1.15 0.70 ***
20190103 03:54:08 * AMSR2 85-92GHz 40.0 -14.99 153.24 -14.81 152.92 0.27 0.77 2.20 34.5
20190103 03:54:08 AMSR2 37GHz 40.0 -14.89 153.40 -14.71 153.07 0.37 1.04 1.10 ***
20190102 23:06:00 Metop-A ASCAT 41.5 *** *** *** *** *** *** *** ***
20190102 19:53:17 SSMIS-17 85-92GHz 46.9 -13.50 151.01 -13.57 151.24 0.56 1.59 1.30 0.3
20190102 19:01:29 * SSMIS-18 85-92GHz 48.3 -13.60 150.84 -13.77 151.39 0.35 1.00 1.90 9.8
20190102 17:24:36 * SSMIS-16 85-92GHz 49.5 -13.90 149.23 -13.91 149.27 0.22 0.62 1.50 19.4
20190102 15:40:09 AMSR2 85-92GHz 48.1 -13.07 149.05 -12.99 148.56 0.32 0.90 1.50 20.4
20190102 15:40:09 AMSR2 37GHz 48.1 -12.97 149.21 -12.89 148.72 0.52 1.47 0.20 ***
20190102 11:57:00 * Metop-A ASCAT 45.0 -13.20 147.68 -13.18 147.53 0.21 0.59 *** ***
20190102 11:24:00 * Metop-B ASCAT 44.5 -13.27 147.58 -13.28 147.61 0.19 0.52 *** ***
20190102 08:43:14 SSMIS-17 85-92GHz 42.3 -13.17 145.90 -13.17 145.83 0.32 0.91 1.00 4.2
20190102 06:41:40 GMI 85-92GHz 40.0 -12.87 145.83 -12.84 145.48 0.40 1.14 1.40 2.8
20190102 06:41:40 * GMI 37GHz 40.0 -13.02 146.39 -12.99 146.04 0.35 0.99 0.40 ***
20190102 06:14:18 SSMIS-16 85-92GHz 40.0 -12.81 145.76 -12.79 145.54 0.55 1.56 0.70 0.4
20190101 17:37:39 SSMIS-16 85-92GHz 30.3 *** *** *** *** *** *** 3.00 ***
20190101 12:21:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20190101 11:45:00 Metop-B ASCAT 35.2 *** *** *** *** *** *** *** ***
20190101 08:57:00 * SSMIS-17 85-92GHz 37.5 -13.40 142.84 -13.39 142.79 0.17 0.47 2.60 62.3
20190101 08:04:07 SSMIS-18 85-92GHz 38.3 -13.43 142.55 -13.43 142.60 0.32 0.89 2.70 7.3
20190101 04:07:18 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 1.30 ***
20190101 04:07:18 * AMSR2 37GHz 40.0 -12.80 141.58 -12.80 141.84 0.20 0.56 0.40 ***
20181231 23:48:00 Metop-A ASCAT 39.8 *** *** *** *** *** *** *** ***
20181231 18:21:40 GMI 85-92GHz 35.0 *** *** *** *** *** *** 1.40 ***
20181231 18:21:40 * GMI 37GHz 35.0 -12.50 140.58 -12.50 140.51 0.36 1.02 0.80 ***
20181231 15:52:34 * AMSR2 85-92GHz 35.0 -12.49 139.64 -12.43 139.56 0.28 0.80 0.70 3.6
20181231 15:52:34 AMSR2 37GHz 35.0 -12.74 140.46 -12.68 140.38 0.31 0.88 0.80 ***
20181231 12:06:00 Metop-B ASCAT 35.0 *** *** *** *** *** *** *** ***
20181231 09:10:36 * SSMIS-17 85-92GHz 35.0 -12.60 139.31 -12.60 139.18 0.32 0.92 1.90 2.6
20181231 06:40:48 * SSMIS-16 85-92GHz 35.0 -12.80 138.23 -12.80 138.21 0.23 0.64 1.80 23.4
20181231 00:09:00 * Metop-A ASCAT 35.0 -12.65 139.66 -12.69 139.71 0.16 0.46 *** ***

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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