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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
20250815 12:50:33 AMSR2 85-92GHz 15.0 *** *** *** *** *** *** 0.40 ***
20250815 12:50:33 AMSR2 37GHz 15.0 *** *** *** *** *** *** 2.40 ***
20250815 08:15:00 * Metop-A ASCAT 16.6 44.19 -167.21 44.19 -167.05 0.41 1.15 *** ***
20250815 07:24:00 Metop-C ASCAT 16.9 42.88 -166.69 42.87 -166.96 0.50 1.40 *** ***
20250815 05:08:12 SSMIS-16 85-92GHz 17.9 *** *** *** *** *** *** 3.00 ***
20250815 04:41:50 SSMIS-17 85-92GHz 18.0 *** *** *** *** *** *** 3.00 ***
20250815 03:18:18 SSMIS-18 85-92GHz 18.6 *** *** *** *** *** *** 3.00 ***
20250815 03:13:40 SSMIS-18 85-92GHz 18.7 *** *** *** *** *** *** 3.00 ***
20250815 00:52:48 AMSR2 85-92GHz 19.6 *** *** *** *** *** *** 3.00 ***
20250815 00:52:48 AMSR2 37GHz 19.6 *** *** *** *** *** *** 3.00 ***
20250814 21:42:00 Metop-C ASCAT 20.0 *** *** *** *** *** *** *** ***
20250814 17:15:39 SSMIS-17 85-92GHz 20.0 *** *** *** *** *** *** 0.30 ***
20250814 15:50:54 * SSMIS-18 85-92GHz 20.0 42.70 -168.37 42.55 -168.40 0.52 1.47 0.20 0.7
20250814 13:46:12 * AMSR2 85-92GHz 20.0 42.89 -168.44 43.10 -168.41 0.48 1.36 1.00 1.3
20250814 13:46:12 AMSR2 37GHz 20.0 *** *** *** *** *** *** 2.10 ***
20250814 08:36:00 Metop-A ASCAT 21.4 *** *** *** *** *** *** *** ***
20250814 08:08:27 * GMI 85-92GHz 21.6 41.70 -168.14 41.86 -168.19 0.28 0.78 0.50 7.3
20250814 08:08:27 GMI 37GHz 21.6 *** *** *** *** *** *** 3.00 ***
20250814 07:45:00 Metop-C ASCAT 21.8 41.03 -169.57 41.26 -169.65 0.41 1.17 *** ***
20250814 06:57:00 Metop-A ASCAT 22.1 *** *** *** *** *** *** *** ***
20250814 05:21:18 * SSMIS-16 85-92GHz 22.8 41.04 -168.45 41.16 -168.51 0.25 0.70 0.50 9.5
20250814 04:55:00 SSMIS-17 85-92GHz 23.0 40.96 -168.54 41.16 -168.64 0.28 0.80 0.50 4.8
20250814 00:08:38 * AMSR2 85-92GHz 24.9 40.13 -168.25 40.10 -168.24 0.29 0.83 1.60 5.3
20250814 00:08:38 AMSR2 37GHz 24.9 40.28 -168.64 40.25 -168.62 0.50 1.42 3.00 ***
20250813 20:27:00 Metop-C ASCAT 28.0 *** *** *** *** *** *** *** ***
20250813 20:24:00 Metop-C ASCAT 28.0 *** *** *** *** *** *** *** ***
20250813 17:31:07 SSMIS-17 85-92GHz 30.4 38.76 -167.28 38.86 -167.37 0.33 0.94 0.40 3.4
20250813 17:03:26 GMI 85-92GHz 30.8 38.61 -167.20 38.81 -167.37 0.36 1.03 0.40 4.7
20250813 17:03:26 GMI 37GHz 30.8 38.66 -167.64 38.86 -167.81 0.41 1.16 0.60 ***
20250813 16:06:51 * SSMIS-18 85-92GHz 31.6 38.36 -167.28 38.12 -167.07 0.25 0.70 0.40 5.8
20250813 13:04:27 * AMSR2 85-92GHz 34.1 37.67 -166.44 37.45 -166.24 0.23 0.66 1.70 7.4
20250813 13:04:27 AMSR2 37GHz 34.1 37.72 -166.63 37.50 -166.43 0.32 0.90 0.40 ***
20250813 07:15:00 * Metop-A ASCAT 40.3 36.20 -165.51 35.95 -165.22 0.23 0.66 *** ***
20250813 05:33:54 SSMIS-16 85-92GHz 42.1 35.61 -164.99 35.70 -165.09 0.26 0.73 0.90 7.0
20250813 05:08:12 * SSMIS-17 85-92GHz 42.6 35.68 -164.95 35.85 -165.15 0.22 0.62 0.80 8.2
20250813 02:02:40 * SSMIS-18 85-92GHz 46.6 34.96 -164.29 35.15 -164.48 0.25 0.71 0.30 7.9
20250812 18:11:36 * SSMIS-16 85-92GHz 55.0 33.64 -162.40 33.60 -162.36 0.31 0.88 0.50 11.0
20250812 17:43:27 * GMI 85-92GHz 55.2 33.50 -162.24 33.55 -162.30 0.21 0.58 0.40 56.5
20250812 17:43:27 GMI 37GHz 55.2 33.50 -162.24 33.55 -162.30 0.36 1.01 0.20 ***
20250812 14:40:51 SSMIS-18 85-92GHz 57.8 *** *** *** *** *** *** 1.20 ***
20250812 07:58:27 GMI 85-92GHz 63.4 31.65 -160.15 31.84 -160.42 0.22 0.61 0.20 64.0
20250812 07:58:27 * GMI 37GHz 63.4 31.70 -160.44 31.89 -160.71 0.14 0.39 0.60 ***
20250812 02:13:43 SSMIS-18 85-92GHz 68.1 30.44 -158.99 30.55 -159.12 0.28 0.79 1.10 4.7
20250812 00:18:18 AMSR2 85-92GHz 70.0 30.35 -158.46 30.30 -158.40 0.19 0.54 0.10 74.1
20250812 00:18:18 * AMSR2 37GHz 70.0 30.20 -158.81 30.15 -158.75 0.12 0.33 0.50 ***
20250811 14:55:56 * SSMIS-18 85-92GHz 72.4 28.84 -156.78 28.86 -156.80 0.14 0.40 0.70 90.8
20250811 07:06:00 * Metop-C ASCAT 70.0 27.30 -154.34 27.10 -154.09 0.17 0.48 *** ***
20250811 07:03:00 Metop-C ASCAT 70.0 27.14 -154.72 26.95 -154.49 0.38 1.07 *** ***
20250811 04:16:31 SSMIS-16 85-92GHz 70.0 26.88 -153.95 26.67 -153.70 0.15 0.42 0.50 76.4
20250811 03:52:38 * SSMIS-17 85-92GHz 70.0 26.81 -153.92 26.67 -153.75 0.11 0.30 0.40 97.5
20250811 02:28:14 * SSMIS-18 85-92GHz 70.0 26.75 -153.80 26.83 -153.91 0.12 0.34 0.50 97.3
20250810 23:32:07 * AMSR2 85-92GHz 69.6 25.72 -153.27 25.79 -153.37 0.23 0.65 2.00 1.3
20250810 23:32:07 AMSR2 37GHz 69.6 26.17 -153.94 26.24 -154.04 0.27 0.77 3.00 ***
20250810 17:38:27 * GMI 85-92GHz 63.8 25.09 -151.67 25.15 -151.74 0.11 0.31 0.20 100.0
20250810 17:38:27 GMI 37GHz 63.8 25.09 -151.72 25.15 -151.79 0.17 0.49 0.20 ***
20250810 16:59:59 SSMIS-16 85-92GHz 61.7 25.18 -151.61 25.35 -151.79 0.16 0.46 0.60 91.9
20250810 16:35:41 SSMIS-17 85-92GHz 60.3 24.86 -151.49 25.10 -151.74 0.14 0.39 0.20 90.0
20250810 07:48:27 GMI 85-92GHz 38.0 *** *** *** *** *** *** 3.00 ***
20250810 07:48:27 GMI 37GHz 38.0 *** *** *** *** *** *** 3.00 ***
20250810 06:33:00 Metop-A ASCAT 35.0 23.22 -150.28 23.15 -150.17 0.74 2.09 *** ***
20250810 04:29:46 * SSMIS-16 85-92GHz 35.0 23.20 -149.40 22.99 -149.09 0.21 0.59 0.80 60.3
20250810 04:05:43 * SSMIS-17 85-92GHz 35.0 23.19 -149.27 23.04 -149.04 0.21 0.60 0.80 59.6
20250809 22:49:56 * AMSR2 85-92GHz 35.0 22.46 -148.25 22.60 -148.45 0.19 0.54 0.40 60.3
20250809 22:49:56 AMSR2 37GHz 35.0 22.11 -148.63 22.25 -148.83 0.23 0.66 0.50 ***
20250809 20:09:00 * Metop-C ASCAT 35.0 22.04 -148.01 22.14 -148.15 0.18 0.51 *** ***
20250809 19:21:00 Metop-A ASCAT 35.0 21.28 -147.83 21.12 -147.59 0.55 1.55 *** ***
20250809 17:14:39 * SSMIS-16 85-92GHz 34.4 22.20 -147.61 22.29 -147.76 0.37 1.04 3.00 0.0
20250809 13:44:49 * SSMIS-18 85-92GHz 31.5 21.83 -146.22 22.00 -146.53 0.49 1.39 3.00 0.0
20250809 06:54:00 * Metop-A ASCAT 30.0 20.43 -145.29 20.35 -145.11 0.24 0.67 *** ***
20250809 06:53:26 GMI 85-92GHz 30.0 20.23 -145.23 20.15 -145.06 0.40 1.12 3.00 0.0
20250809 06:53:26 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250809 01:13:09 * SSMIS-18 85-92GHz 31.3 20.16 -144.03 20.10 -143.74 0.40 1.13 0.80 5.5
20250808 18:54:00 * Metop-C ASCAT 33.1 19.43 -142.45 19.39 -142.23 0.18 0.50 *** ***
20250808 18:51:00 Metop-C ASCAT 33.1 *** *** *** *** *** *** *** ***
20250808 17:33:26 GMI 85-92GHz 33.5 *** *** *** *** *** *** 3.00 ***
20250808 17:33:26 GMI 37GHz 33.5 *** *** *** *** *** *** 3.00 ***
20250808 15:47:38 * SSMIS-16 85-92GHz 34.6 19.60 -141.69 19.57 -141.49 0.37 1.05 2.90 3.0
20250808 13:59:10 SSMIS-18 85-92GHz 35.0 19.88 -141.10 19.93 -141.36 0.52 1.46 0.50 1.5
20250808 11:11:58 AMSR2 85-92GHz 35.0 19.79 -140.50 19.85 -140.70 0.25 0.71 0.30 10.4
20250808 11:11:58 * AMSR2 37GHz 35.0 19.39 -140.50 19.45 -140.70 0.21 0.61 1.80 ***
20250808 05:33:00 * Metop-A ASCAT 35.0 18.74 -138.96 18.75 -139.09 0.22 0.62 *** ***
20250808 01:25:39 * SSMIS-18 85-92GHz 35.0 19.40 -138.25 19.37 -137.84 0.32 0.89 3.00 0.0
20250807 19:12:00 * Metop-C ASCAT 39.0 18.60 -136.29 18.55 -136.00 0.17 0.49 *** ***
20250807 15:38:36 * SSMIS-17 85-92GHz 42.0 19.34 -135.84 19.30 -135.72 0.19 0.53 1.10 44.2
20250807 10:29:15 AMSR2 85-92GHz 45.0 19.00 -134.13 18.95 -133.69 0.23 0.65 1.80 39.3
20250807 10:29:15 * AMSR2 37GHz 45.0 18.45 -134.28 18.40 -133.84 0.15 0.43 0.60 ***
20250807 06:45:00 Metop-C ASCAT 45.0 18.43 -133.14 18.40 -132.94 0.17 0.48 *** ***
20250807 06:43:26 GMI 85-92GHz 45.0 18.77 -133.40 18.75 -133.20 0.19 0.54 0.70 62.4
20250807 06:43:26 * GMI 37GHz 45.0 18.42 -133.24 18.40 -133.05 0.17 0.48 0.60 ***
20250807 06:42:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20250807 05:54:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
20250807 03:27:56 * SSMIS-16 85-92GHz 44.7 18.11 -132.46 18.09 -132.36 0.27 0.77 2.00 2.6
20250807 03:05:26 SSMIS-17 85-92GHz 44.9 18.10 -132.53 18.10 -132.51 0.37 1.04 2.00 1.4
20250806 22:17:31 AMSR2 85-92GHz 45.0 18.26 -131.38 18.23 -131.04 0.43 1.22 0.50 5.0
20250806 22:17:31 * AMSR2 37GHz 45.0 18.21 -131.11 18.18 -130.78 0.13 0.37 0.80 ***
20250806 17:23:26 GMI 85-92GHz 45.0 *** *** *** *** *** *** 2.10 ***
20250806 17:23:26 GMI 37GHz 45.0 *** *** *** *** *** *** 0.30 ***
20250805 21:34:16 AMSR2 85-92GHz 45.0 17.48 -125.35 17.42 -125.22 0.22 0.64 0.50 30.3
20250805 21:34:16 * AMSR2 37GHz 45.0 17.18 -125.50 17.12 -125.38 0.12 0.35 0.60 ***
20250805 18:15:00 * Metop-C ASCAT 45.0 16.52 -124.95 16.49 -124.90 0.16 0.46 *** ***
20250805 18:08:27 GMI 85-92GHz 45.0 *** *** *** *** *** *** 3.00 ***
20250805 18:08:27 GMI 37GHz 45.0 *** *** *** *** *** *** 3.00 ***
20250805 06:33:27 GMI 85-92GHz 45.0 15.89 -122.56 15.84 -122.45 0.15 0.41 0.90 66.7
20250805 06:33:27 * GMI 37GHz 45.0 15.84 -122.41 15.79 -122.29 0.10 0.28 0.70 ***
20250805 05:42:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20250805 04:54:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
20250805 01:51:33 * SSMIS-17 85-92GHz 45.0 15.43 -121.84 15.52 -122.09 0.16 0.46 0.50 43.2
20250804 17:45:00 Metop-A ASCAT 39.6 *** *** *** *** *** *** *** ***
20250804 15:02:11 * SSMIS-16 85-92GHz 35.1 14.70 -118.94 14.69 -118.94 0.54 1.52 1.40 1.4
20250804 14:40:59 SSMIS-17 85-92GHz 34.5 *** *** *** *** *** *** 3.00 ***
20250804 11:33:28 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250804 09:59:20 AMSR2 85-92GHz 30.0 14.17 -118.06 14.09 -117.78 0.59 1.68 2.10 0.7
20250804 09:59:20 * AMSR2 37GHz 30.0 14.47 -118.32 14.39 -118.03 0.35 1.00 0.10 ***

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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