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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
20230903 06:57:00 Metop-A ASCAT 25.0 21.07 -141.85 20.99 -141.79 3.36 9.49 *** ***
20230903 06:54:00 Metop-A ASCAT 25.0 21.07 -141.85 20.99 -141.79 3.36 9.49 *** ***
20230903 06:06:00 Metop-C ASCAT 25.0 21.20 -141.90 21.19 -141.89 3.36 9.49 *** ***
20230903 05:51:15 GMI 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230903 05:51:15 GMI 37GHz 25.0 *** *** *** *** *** *** 2.40 ***
20230903 03:10:17 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230903 03:05:51 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230903 01:17:28 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230902 22:18:42 AMSR2 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230902 22:18:42 AMSR2 37GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230902 18:57:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20230902 15:51:48 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 2.40 ***
20230902 14:03:20 SSMIS-18 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230902 11:24:18 AMSR2 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230902 11:24:18 AMSR2 37GHz 25.0 *** *** *** *** *** *** 1.90 ***
20230902 07:15:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20230902 06:27:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20230902 03:19:16 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 2.70 ***
20230902 01:30:32 * SSMIS-18 85-92GHz 25.0 19.25 -140.51 19.26 -140.60 0.30 0.84 0.80 2.0
20230901 19:21:15 * GMI 85-92GHz 25.0 19.04 -139.62 19.02 -139.53 0.29 0.82 0.20 5.4
20230901 19:21:15 GMI 37GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230901 18:24:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20230901 16:05:16 SSMIS-17 85-92GHz 25.0 20.15 -139.88 20.14 -139.81 0.55 1.54 0.20 0.4
20230901 06:48:00 * Metop-C ASCAT 27.2 18.32 -139.05 18.30 -138.97 0.17 0.49 *** ***
20230901 06:06:15 GMI 85-92GHz 27.5 18.96 -138.61 18.95 -138.60 0.29 0.82 3.00 0.0
20230901 06:06:15 GMI 37GHz 27.5 *** *** *** *** *** *** 3.00 ***
20230901 05:57:00 * Metop-A ASCAT 27.5 18.15 -138.91 18.15 -138.92 0.26 0.74 *** ***
20230901 03:32:27 SSMIS-17 85-92GHz 28.5 19.41 -138.61 19.40 -138.55 0.40 1.12 1.60 1.5
20230831 22:30:29 * AMSR2 85-92GHz 30.0 19.53 -138.17 19.55 -138.33 0.39 1.10 1.10 1.3
20230831 22:30:29 AMSR2 37GHz 30.0 *** *** *** *** *** *** 1.20 ***
20230831 14:41:24 SSMIS-16 85-92GHz 30.0 19.89 -138.11 19.90 -138.15 0.40 1.13 3.00 0.0
20230831 12:48:42 * SSMIS-18 85-92GHz 30.0 19.81 -138.25 19.80 -138.15 0.31 0.87 3.00 0.0
20230831 03:45:25 * SSMIS-17 85-92GHz 30.0 19.45 -136.45 19.44 -136.34 0.58 1.63 3.00 0.0
20230831 00:15:23 * SSMIS-18 85-92GHz 30.0 19.55 -135.63 19.55 -135.59 0.50 1.41 0.90 1.6
20230830 19:36:15 GMI 85-92GHz 30.0 19.20 -134.81 19.22 -135.03 0.29 0.82 1.20 2.6
20230830 19:36:15 GMI 37GHz 30.0 18.80 -134.70 18.82 -134.93 0.22 0.62 1.20 ***
20230830 19:09:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20230830 19:06:00 * Metop-A ASCAT 30.0 18.84 -134.52 18.83 -134.34 0.14 0.39 *** ***
20230830 18:21:00 * Metop-C ASCAT 30.0 18.84 -134.40 18.83 -134.34 0.13 0.38 *** ***
20230830 18:18:00 Metop-C ASCAT 30.0 18.84 -134.44 18.83 -134.39 0.14 0.40 *** ***
20230830 14:54:26 SSMIS-16 85-92GHz 30.0 19.06 -134.39 19.06 -134.41 0.45 1.27 1.50 2.0
20230830 13:01:41 SSMIS-18 85-92GHz 30.0 18.90 -133.94 18.90 -133.75 0.41 1.16 1.70 2.7
20230830 06:36:00 * Metop-A ASCAT 32.2 18.64 -132.37 18.66 -132.24 0.16 0.45 *** ***
20230830 06:16:15 GMI 85-92GHz 32.4 19.10 -132.40 19.11 -132.34 0.38 1.08 0.80 2.5
20230830 06:16:15 GMI 37GHz 32.4 18.60 -132.40 18.61 -132.34 0.20 0.57 2.80 ***
20230830 02:21:11 SSMIS-16 85-92GHz 34.0 18.83 -131.52 18.80 -131.66 0.41 1.17 0.30 1.4
20230830 00:28:21 SSMIS-18 85-92GHz 34.8 18.99 -131.31 19.00 -131.21 0.34 0.97 0.40 2.3
20230829 18:39:00 * Metop-C ASCAT 35.0 18.97 -129.66 19.00 -129.52 0.15 0.42 *** ***
20230829 17:48:00 Metop-A ASCAT 35.0 19.05 -129.42 19.05 -129.47 0.14 0.40 *** ***
20230829 17:45:00 * Metop-A ASCAT 35.0 19.06 -129.41 19.05 -129.47 0.14 0.40 *** ***
20230829 15:05:00 SSMIS-17 85-92GHz 35.0 19.40 -129.07 19.40 -129.05 0.37 1.05 1.00 1.6
20230829 10:10:28 AMSR2 85-92GHz 36.5 19.87 -127.71 19.83 -127.37 0.33 0.94 0.20 5.1
20230829 10:10:28 * AMSR2 37GHz 36.5 19.77 -127.55 19.73 -127.21 0.23 0.65 0.40 ***
20230829 06:09:00 * Metop-C ASCAT 39.8 19.30 -126.38 19.29 -126.34 0.15 0.42 *** ***
20230829 05:18:00 * Metop-A ASCAT 39.4 19.29 -126.08 19.32 -126.25 0.16 0.45 *** ***
20230829 02:31:45 SSMIS-17 85-92GHz 37.1 19.93 -125.52 19.96 -125.63 0.22 0.62 0.60 39.2
20230828 21:59:10 AMSR2 85-92GHz 35.0 18.99 -124.29 18.87 -124.08 0.51 1.44 0.90 2.2
20230828 21:59:10 * AMSR2 37GHz 35.0 18.99 -124.29 18.87 -124.08 0.19 0.53 0.70 ***
20230828 19:46:14 GMI 85-92GHz 35.0 18.73 -124.23 18.88 -124.48 0.52 1.46 1.10 1.1
20230828 19:46:14 GMI 37GHz 35.0 18.63 -123.70 18.78 -123.95 0.20 0.58 1.20 ***
20230828 18:06:00 * Metop-A ASCAT 35.0 18.11 -123.71 18.10 -123.69 0.14 0.40 *** ***
20230828 17:21:00 * Metop-C ASCAT 35.0 18.14 -123.56 18.22 -123.65 0.15 0.41 *** ***
20230828 15:18:48 SSMIS-17 85-92GHz 35.0 18.14 -123.36 18.10 -123.33 0.57 1.61 0.10 0.1
20230828 13:39:51 SSMIS-16 85-92GHz 35.0 18.00 -122.85 18.13 -122.99 0.41 1.17 1.70 3.9
20230828 11:47:10 SSMIS-18 85-92GHz 35.0 17.64 -123.08 17.65 -123.10 0.39 1.09 2.00 5.3
20230828 09:27:45 AMSR2 85-92GHz 35.0 17.57 -122.45 17.53 -122.41 0.33 0.92 1.30 14.4
20230828 09:27:45 * AMSR2 37GHz 35.0 17.57 -122.76 17.53 -122.72 0.16 0.44 1.60 ***
20230828 06:31:14 GMI 85-92GHz 35.0 17.28 -122.61 17.25 -122.56 0.29 0.81 1.60 7.2
20230828 06:31:14 * GMI 37GHz 35.0 17.23 -122.56 17.20 -122.51 0.15 0.42 1.20 ***
20230828 05:36:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20230828 04:51:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20230828 02:45:08 SSMIS-16 85-92GHz 35.0 17.08 -122.45 17.09 -122.47 0.35 1.00 2.40 3.3
20230828 02:45:06 * SSMIS-17 85-92GHz 35.0 17.08 -122.44 17.09 -122.47 0.35 0.98 2.40 4.4
20230828 01:05:43 SSMIS-16 85-92GHz 35.0 17.27 -122.19 17.23 -122.05 0.33 0.95 1.50 2.5
20230827 21:15:48 AMSR2 85-92GHz 35.0 17.06 -121.58 17.05 -121.53 0.39 1.09 2.30 2.7
20230827 21:15:48 * AMSR2 37GHz 35.0 17.06 -121.58 17.05 -121.53 0.15 0.41 0.80 ***
20230827 13:53:04 SSMIS-16 85-92GHz 35.0 16.71 -120.74 16.80 -120.86 0.42 1.17 1.00 2.8
20230827 12:00:32 * SSMIS-18 85-92GHz 35.0 16.70 -120.46 16.70 -120.46 0.26 0.75 1.30 7.7
20230827 01:18:12 * SSMIS-16 85-92GHz 30.0 15.89 -118.42 15.72 -118.21 0.35 1.00 1.40 2.9
20230826 23:25:39 SSMIS-18 85-92GHz 30.0 15.54 -118.59 15.60 -118.69 0.46 1.29 1.20 2.2

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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