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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
20200918 12:09:00 * Metop-A ASCAT 116.7 21.81 -55.87 21.76 -55.82 0.14 0.40 *** ***
20200918 10:09:59 * SSMIS-17 85-92GHz 115.6 21.35 -55.58 21.17 -55.43 0.10 0.27 0.70 100.0
20200918 09:06:56 SSMIS-18 85-92GHz 115.1 21.42 -55.57 21.37 -55.53 0.11 0.31 0.50 100.0
20200918 07:49:17 * SSMIS-16 85-92GHz 115.0 21.39 -55.28 21.52 -55.37 0.10 0.29 0.50 100.0
20200917 23:42:00 Metop-A ASCAT 119.5 *** *** *** *** *** *** *** ***
20200917 21:37:18 * SSMIS-17 85-92GHz 116.0 20.28 -53.94 20.17 -53.87 0.11 0.31 0.60 100.0
20200917 20:34:36 * SSMIS-18 85-92GHz 114.3 20.09 -54.02 20.12 -54.04 0.10 0.28 0.60 100.0
20200917 19:16:49 SSMIS-16 85-92GHz 112.1 19.92 -53.66 20.12 -53.77 0.10 0.27 0.60 100.0
20200917 17:20:19 * GMI 85-92GHz 108.3 19.71 -53.55 19.77 -53.60 0.10 0.27 0.60 100.0
20200917 17:20:19 GMI 37GHz 108.3 19.61 -53.60 19.67 -53.65 0.11 0.31 0.40 ***
20200917 16:32:46 * AMSR2 85-92GHz 106.4 19.61 -53.41 19.77 -53.59 0.10 0.29 0.60 100.0
20200917 16:32:46 AMSR2 37GHz 106.4 19.51 -53.52 19.67 -53.69 0.11 0.31 0.40 ***
20200917 13:45:00 Metop-B ASCAT 99.4 19.24 -53.03 19.37 -53.21 0.16 0.44 *** ***
20200917 12:30:00 Metop-A ASCAT 96.7 18.87 -52.96 18.76 -52.86 0.22 0.61 *** ***
20200917 10:23:57 * SSMIS-17 85-92GHz 92.3 18.81 -52.52 19.02 -52.69 0.10 0.28 0.50 100.0
20200917 08:02:56 * SSMIS-16 85-92GHz 88.4 18.50 -52.15 18.61 -52.23 0.11 0.30 0.50 100.0
20200917 05:39:15 * AMSR2 85-92GHz 84.7 18.21 -51.91 18.23 -51.92 0.10 0.29 0.70 100.0
20200917 05:39:15 AMSR2 37GHz 84.7 18.11 -52.01 18.13 -52.02 0.11 0.30 0.40 ***
20200917 04:00:18 GMI 85-92GHz 83.3 *** *** *** *** *** *** 0.70 ***
20200917 04:00:18 GMI 37GHz 83.3 *** *** *** *** *** *** 0.50 ***
20200917 01:15:00 * Metop-B ASCAT 81.0 17.65 -51.42 17.54 -51.22 0.12 0.34 *** ***
20200917 00:00:00 Metop-A ASCAT 80.0 17.25 -51.25 17.23 -51.22 0.22 0.62 *** ***
20200916 21:50:06 SSMIS-17 85-92GHz 81.8 17.23 -50.94 17.19 -50.80 0.12 0.34 0.60 90.6
20200916 19:28:43 * SSMIS-16 85-92GHz 83.8 17.09 -50.67 17.15 -50.84 0.09 0.26 0.50 100.0
20200916 12:27:00 * Metop-B ASCAT 85.0 16.01 -49.67 15.91 -49.57 0.19 0.54 *** ***
20200916 07:52:37 * SSMIS-18 85-92GHz 81.6 15.77 -48.86 15.86 -48.95 0.13 0.37 0.50 78.9
20200916 04:56:49 AMSR2 85-92GHz 76.5 15.37 -48.64 15.46 -48.72 0.11 0.30 0.60 100.0
20200916 04:56:49 * AMSR2 37GHz 76.5 15.22 -48.69 15.31 -48.77 0.09 0.26 0.50 ***
20200915 23:54:00 Metop-B ASCAT 59.9 *** *** *** *** *** *** *** ***
20200915 22:02:47 * SSMIS-17 85-92GHz 58.4 14.51 -47.87 14.43 -47.80 0.12 0.33 0.60 89.8
20200915 19:41:18 SSMIS-16 85-92GHz 56.4 14.21 -47.84 14.28 -47.90 0.28 0.80 0.60 45.8
20200915 19:16:42 SSMIS-18 85-92GHz 56.1 14.19 -47.65 14.28 -47.75 0.30 0.84 0.60 36.4
20200915 17:25:19 GMI 85-92GHz 55.0 14.30 -47.42 14.32 -47.46 0.21 0.59 0.70 64.8
20200915 17:25:19 * GMI 37GHz 55.0 14.15 -47.32 14.17 -47.36 0.15 0.42 0.40 ***
20200915 16:43:24 AMSR2 85-92GHz 55.0 14.08 -47.32 14.17 -47.45 0.16 0.46 0.80 81.8
20200915 16:43:24 AMSR2 37GHz 55.0 14.03 -47.37 14.12 -47.50 0.21 0.61 0.40 ***
20200915 11:33:00 Metop-A ASCAT 54.6 *** *** *** *** *** *** *** ***
20200915 08:05:32 * SSMIS-18 85-92GHz 51.7 13.79 -45.99 13.83 -46.12 0.15 0.41 1.10 56.7
20200915 04:14:24 AMSR2 85-92GHz 48.5 13.40 -45.21 13.29 -44.97 0.27 0.77 1.10 35.8
20200915 04:14:24 * AMSR2 37GHz 48.5 13.25 -45.26 13.14 -45.02 0.13 0.37 0.20 ***
20200914 23:00:00 * Metop-A ASCAT 45.0 12.88 -44.43 12.89 -44.56 0.15 0.41 *** ***
20200914 19:28:43 SSMIS-18 85-92GHz 45.0 13.42 -44.50 13.44 -44.74 0.38 1.08 2.80 7.8
20200914 16:00:02 AMSR2 85-92GHz 41.7 13.05 -43.18 13.03 -42.96 0.49 1.37 1.40 1.6
20200914 16:00:02 * AMSR2 37GHz 41.7 12.70 -43.23 12.68 -43.01 0.27 0.75 0.50 ***
20200914 11:54:00 * Metop-A ASCAT 35.0 12.80 -42.17 12.80 -42.13 0.13 0.38 *** ***
20200914 09:24:07 * SSMIS-17 85-92GHz 35.0 13.10 -41.94 13.18 -41.64 0.31 0.89 1.80 27.8
20200914 07:01:46 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 1.40 ***
20200913 23:21:00 * Metop-A ASCAT 30.0 12.86 -38.51 12.89 -38.60 0.23 0.66 *** ***
20200913 20:47:34 SSMIS-17 85-92GHz 30.0 13.39 -37.78 13.38 -37.78 0.45 1.27 2.80 2.6
20200913 18:24:39 SSMIS-16 85-92GHz 30.0 12.68 -36.77 12.64 -36.64 0.44 1.25 3.00 0.0
20200913 17:35:18 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20200913 17:35:18 GMI 37GHz 30.0 *** *** *** *** *** *** 0.70 ***
20200913 11:48:00 Metop-B ASCAT 30.0 *** *** *** *** *** *** *** ***
20200913 10:36:00 * Metop-A ASCAT 30.0 12.07 -35.75 12.09 -35.92 0.14 0.38 *** ***
20200913 09:37:48 SSMIS-17 85-92GHz 30.0 12.35 -35.57 12.34 -35.46 0.46 1.30 2.30 1.7
20200913 06:49:56 SSMIS-18 85-92GHz 30.0 12.18 -34.84 12.16 -34.69 0.41 1.15 2.60 2.6
20200913 04:26:44 AMSR2 85-92GHz 30.0 12.32 -35.06 12.37 -35.24 0.35 0.98 3.00 0.0
20200913 04:26:44 * AMSR2 37GHz 30.0 12.27 -34.75 12.32 -34.94 0.23 0.65 2.20 ***
20200913 04:20:18 GMI 85-92GHz 30.0 12.12 -34.74 12.17 -34.94 0.29 0.82 0.10 4.3
20200913 04:20:18 GMI 37GHz 30.0 12.22 -34.79 12.27 -34.99 0.41 1.16 2.20 ***
20200912 23:15:00 * Metop-B ASCAT 30.0 11.89 -34.04 11.93 -34.12 0.24 0.69 *** ***
20200912 22:00:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20200912 21:00:24 SSMIS-17 85-92GHz 30.0 11.53 -33.71 11.51 -33.67 0.33 0.93 0.50 2.7
20200912 18:37:36 * SSMIS-16 85-92GHz 30.0 11.61 -33.31 11.53 -33.16 0.39 1.10 1.70 1.8

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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