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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 06:00:00 * Metop-B ASCAT 25.0 23.25 -126.77 23.25 -126.77 0.15 0.42 *** ***
20200918 02:44:13 * SSMIS-17 85-92GHz 25.0 24.49 -127.00 24.49 -127.03 0.37 1.06 1.10 1.3
20200918 00:23:23 * SSMIS-16 85-92GHz 25.0 24.17 -126.90 24.17 -126.86 0.36 1.03 0.40 2.0
20200917 21:30:42 AMSR2 85-92GHz 25.0 24.19 -126.59 24.19 -126.54 0.46 1.31 0.40 1.3
20200917 21:30:42 * AMSR2 37GHz 25.0 23.49 -126.31 23.49 -126.27 0.37 1.05 0.90 ***
20200917 18:48:00 Metop-B ASCAT 25.0 *** *** *** *** *** *** *** ***
20200917 17:33:00 * Metop-A ASCAT 25.2 23.49 -126.01 23.50 -126.05 0.13 0.36 *** ***
20200917 15:28:07 SSMIS-17 85-92GHz 26.1 24.35 -126.59 24.34 -126.55 0.40 1.13 0.80 1.0
20200917 13:07:06 SSMIS-16 85-92GHz 27.0 *** *** *** *** *** *** 2.90 ***
20200917 10:34:22 AMSR2 85-92GHz 28.1 24.09 -125.98 24.14 -126.11 0.46 1.29 0.50 1.4
20200917 10:34:22 AMSR2 37GHz 28.1 23.29 -125.44 23.34 -125.56 0.43 1.22 1.30 ***
20200917 05:06:00 * Metop-A ASCAT 30.0 23.21 -124.98 23.25 -125.06 0.12 0.33 *** ***
20200917 02:57:28 SSMIS-17 85-92GHz 30.0 23.40 -125.10 23.41 -125.11 0.56 1.59 0.20 0.4
20200917 00:36:16 SSMIS-16 85-92GHz 30.0 23.22 -125.26 23.18 -125.20 0.46 1.29 0.30 1.0
20200916 22:50:18 GMI 85-92GHz 30.0 23.51 -125.08 23.58 -125.20 0.36 1.02 1.30 2.2
20200916 22:50:18 GMI 37GHz 30.0 22.91 -124.26 22.98 -124.38 0.31 0.86 1.40 ***
20200916 17:30:00 * Metop-B ASCAT 30.4 22.72 -124.03 22.75 -124.09 0.13 0.38 *** ***
20200916 15:41:57 SSMIS-17 85-92GHz 31.9 23.26 -123.99 23.22 -123.92 0.37 1.03 3.00 0.0
20200916 12:56:29 SSMIS-18 85-92GHz 35.0 22.67 -123.68 22.59 -123.61 0.38 1.07 0.30 1.5
20200916 09:51:57 AMSR2 85-92GHz 36.8 22.33 -123.16 22.15 -123.13 0.35 1.00 0.10 2.4
20200916 09:51:57 * AMSR2 37GHz 36.8 22.03 -122.95 21.85 -122.91 0.21 0.59 1.10 ***
20200916 09:30:18 GMI 85-92GHz 37.1 22.46 -123.42 22.35 -123.40 0.23 0.66 1.10 34.5
20200916 09:30:18 GMI 37GHz 37.1 *** *** *** *** *** *** 0.90 ***
20200916 05:00:00 * Metop-B ASCAT 41.7 21.57 -122.43 21.66 -122.51 0.18 0.51 *** ***
20200916 00:24:21 SSMIS-18 85-92GHz 49.3 20.98 -122.98 20.95 -122.92 0.62 1.74 0.50 0.4
20200915 21:41:53 * AMSR2 85-92GHz 49.6 20.82 -121.93 20.74 -121.82 0.23 0.64 0.20 79.3
20200915 21:41:53 AMSR2 37GHz 49.6 20.92 -121.44 20.84 -121.34 0.33 0.92 0.70 ***
20200915 16:36:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20200915 13:09:27 * SSMIS-18 85-92GHz 50.0 20.02 -121.06 19.95 -120.90 0.27 0.78 0.50 28.0
20200915 04:06:00 Metop-A ASCAT 48.4 *** *** *** *** *** *** *** ***
20200915 00:36:13 * SSMIS-18 85-92GHz 45.5 18.86 -119.49 18.80 -119.41 0.35 0.98 0.30 8.9
20200914 23:00:19 GMI 85-92GHz 44.2 18.75 -119.04 18.84 -119.19 0.30 0.86 0.30 32.1
20200914 23:00:19 * GMI 37GHz 44.2 19.20 -118.73 19.29 -118.87 0.23 0.64 3.00 ***
20200914 20:58:16 AMSR2 85-92GHz 42.5 18.77 -118.84 18.77 -118.84 0.35 1.00 0.70 12.8
20200914 20:58:16 AMSR2 37GHz 42.5 18.37 -119.05 18.37 -119.05 0.31 0.89 0.50 ***
20200914 18:12:00 Metop-B ASCAT 40.0 *** *** *** *** *** *** *** ***
20200914 16:57:00 * Metop-A ASCAT 40.0 18.08 -118.49 18.15 -118.56 0.14 0.41 *** ***
20200914 14:28:44 SSMIS-17 85-92GHz 40.0 18.04 -118.00 18.07 -118.02 0.47 1.32 1.30 2.1
20200914 12:06:36 * SSMIS-16 85-92GHz 40.0 17.75 -117.79 17.75 -117.78 0.25 0.70 0.30 2.6
20200914 10:05:02 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 2.00 ***
20200914 10:05:02 AMSR2 37GHz 40.0 *** *** *** *** *** *** 0.60 ***
20200914 09:40:18 GMI 85-92GHz 40.0 18.09 -118.15 18.08 -118.11 0.35 0.98 1.80 10.9
20200914 09:40:18 * GMI 37GHz 40.0 17.64 -118.00 17.63 -117.96 0.33 0.93 0.40 ***
20200914 05:42:00 * Metop-B ASCAT 40.0 17.75 -117.75 17.75 -117.79 0.15 0.44 *** ***
20200914 04:27:00 * Metop-A ASCAT 40.0 17.58 -117.49 17.65 -117.22 0.15 0.42 *** ***
20200914 01:54:50 SSMIS-17 85-92GHz 40.0 17.75 -117.09 17.70 -117.31 0.35 1.00 2.60 3.4
20200914 00:48:44 SSMIS-18 85-92GHz 40.0 17.59 -117.17 17.60 -117.02 0.36 1.01 1.20 1.4
20200913 23:32:31 * SSMIS-16 85-92GHz 40.0 17.49 -116.72 17.50 -116.81 0.27 0.75 1.10 4.1
20200913 16:51:00 * Metop-B ASCAT 40.0 17.60 -115.49 17.65 -115.73 0.15 0.41 *** ***
20200913 14:41:57 SSMIS-17 85-92GHz 40.0 17.49 -114.27 17.50 -114.34 0.53 1.49 2.80 1.0
20200913 12:19:21 SSMIS-16 85-92GHz 40.0 17.27 -114.40 17.26 -114.34 0.45 1.28 0.30 1.5
20200913 09:21:53 AMSR2 85-92GHz 37.8 17.12 -113.86 17.11 -113.80 0.34 0.97 1.80 7.3
20200913 09:21:53 * AMSR2 37GHz 37.8 17.32 -113.70 17.31 -113.64 0.20 0.56 1.20 ***
20200913 04:21:00 * Metop-B ASCAT 33.6 16.92 -113.13 16.77 -112.96 0.16 0.46 *** ***
20200913 02:07:36 SSMIS-17 85-92GHz 31.8 16.30 -112.03 16.41 -112.13 0.36 1.03 2.20 4.5
20200912 23:44:43 SSMIS-16 85-92GHz 30.0 15.72 -111.94 15.75 -111.97 0.48 1.35 1.30 4.3

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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