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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
20250913 05:09:36 SSMIS-16 85-92GHz 20.3 *** *** *** *** *** *** 3.00 ***
20250913 03:10:21 SSMIS-18 85-92GHz 21.2 26.47 -169.89 26.46 -169.86 0.57 1.60 0.40 0.4
20250913 00:17:31 * AMSR2 85-92GHz 22.4 26.28 -168.67 26.26 -168.62 0.44 1.25 2.90 1.7
20250913 00:17:31 AMSR2 37GHz 22.4 *** *** *** *** *** *** 2.80 ***
20250912 20:57:00 * Metop-A ASCAT 23.8 25.46 -168.03 25.46 -168.04 0.69 1.95 *** ***
20250912 17:52:47 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 2.10 ***
20250912 17:12:34 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 0.50 ***
20250912 15:53:27 * SSMIS-18 85-92GHz 25.0 25.33 -167.26 25.28 -167.10 0.56 1.59 1.30 0.3
20250912 13:20:09 * AMSR2 85-92GHz 25.0 25.59 -167.31 25.51 -167.08 0.48 1.37 1.10 3.0
20250912 13:20:09 AMSR2 37GHz 25.0 25.09 -167.48 25.01 -167.25 0.53 1.49 2.10 ***
20250912 07:42:00 * Metop-C ASCAT 25.0 23.90 -165.72 23.98 -165.95 0.56 1.59 *** ***
20250912 04:42:55 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 1.70 ***
20250911 22:58:26 * GMI 85-92GHz 25.0 23.88 -164.85 23.94 -165.05 0.45 1.29 0.20 1.6
20250911 22:58:26 GMI 37GHz 25.0 24.08 -164.52 24.14 -164.72 0.52 1.48 0.50 ***
20250911 19:39:00 Metop-A ASCAT 25.0 23.19 -163.98 23.27 -164.24 0.54 1.52 *** ***
20250911 18:06:38 SSMIS-16 85-92GHz 25.0 *** *** *** *** *** *** 1.40 ***
20250911 17:26:54 * SSMIS-17 85-92GHz 25.2 23.92 -164.16 23.95 -164.27 0.47 1.33 0.30 1.2
20250911 09:33:26 * GMI 85-92GHz 28.5 24.43 -162.37 24.40 -162.27 0.48 1.36 1.20 1.0
20250911 09:33:26 GMI 37GHz 28.5 *** *** *** *** *** *** 2.60 ***
20250911 07:12:00 Metop-A ASCAT 29.5 24.21 -161.38 24.15 -161.15 0.52 1.48 *** ***
20250911 05:36:20 * SSMIS-16 85-92GHz 30.0 22.78 -161.89 22.80 -161.96 0.53 1.49 2.90 0.3
20250911 04:56:56 SSMIS-17 85-92GHz 30.0 23.09 -160.45 23.15 -160.65 0.56 1.59 2.70 0.8
20250911 01:56:26 * SSMIS-18 85-92GHz 30.0 24.37 -159.83 24.43 -160.03 0.30 0.85 3.00 0.0
20250911 00:28:49 AMSR2 85-92GHz 30.0 23.33 -161.29 23.30 -161.20 0.46 1.31 3.00 0.0
20250911 00:28:49 AMSR2 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20250910 20:48:00 Metop-C ASCAT 30.0 23.26 -158.90 23.28 -158.94 1.87 5.30 *** ***
20250910 20:00:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20250910 14:41:09 * SSMIS-18 85-92GHz 31.8 23.22 -157.86 23.24 -157.93 0.27 0.76 0.80 4.4
20250910 08:24:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20250910 07:33:00 * Metop-A ASCAT 35.0 22.35 -156.74 22.35 -157.05 0.21 0.61 *** ***
20250910 02:10:00 * SSMIS-18 85-92GHz 35.0 22.66 -156.60 22.60 -156.70 0.47 1.34 3.00 0.0
20250909 22:48:27 * GMI 85-92GHz 35.0 23.05 -155.49 23.05 -155.72 0.37 1.05 1.10 15.3
20250909 22:48:27 GMI 37GHz 35.0 *** *** *** *** *** *** 1.00 ***
20250909 19:30:00 * Metop-C ASCAT 35.0 22.40 -154.66 22.40 -154.29 0.18 0.52 *** ***
20250909 16:53:17 SSMIS-16 85-92GHz 35.9 22.96 -154.04 23.00 -154.32 0.29 0.81 2.40 5.9
20250909 16:14:35 * SSMIS-17 85-92GHz 36.5 22.86 -153.93 22.75 -153.61 0.27 0.77 2.20 5.1
20250909 14:54:58 SSMIS-18 85-92GHz 37.6 22.80 -153.85 22.81 -153.88 0.29 0.82 2.90 4.4
20250909 09:18:27 * GMI 85-92GHz 46.7 21.97 -152.38 21.94 -152.33 0.25 0.70 1.70 5.3
20250909 09:18:27 GMI 37GHz 46.7 21.87 -151.85 21.84 -151.79 0.38 1.07 1.40 ***
20250909 07:03:00 * Metop-C ASCAT 53.3 21.56 -151.62 21.49 -151.40 0.16 0.45 *** ***
20250909 06:12:00 Metop-A ASCAT 54.7 *** *** *** *** *** *** *** ***
20250909 04:21:50 SSMIS-16 85-92GHz 59.1 20.92 -151.00 20.86 -150.62 0.33 0.93 0.30 3.6
20250909 03:43:26 SSMIS-17 85-92GHz 60.7 21.24 -150.55 21.21 -150.35 0.46 1.31 2.70 1.1
20250909 02:23:50 * SSMIS-18 85-92GHz 64.0 21.48 -150.72 21.51 -150.88 0.19 0.53 1.30 13.8
20250908 23:02:03 AMSR2 85-92GHz 70.8 21.00 -149.89 21.09 -150.04 0.26 0.72 1.10 4.2
20250908 23:02:03 * AMSR2 37GHz 70.8 21.05 -149.99 21.14 -150.15 0.20 0.56 0.60 ***
20250908 19:51:00 Metop-C ASCAT 73.5 *** *** *** *** *** *** *** ***
20250908 17:07:20 * SSMIS-16 85-92GHz 75.7 20.80 -149.08 20.90 -149.22 0.15 0.42 0.40 90.2
20250908 16:29:06 * SSMIS-17 85-92GHz 76.3 20.69 -148.91 20.54 -148.64 0.16 0.45 0.40 75.6
20250908 12:07:33 AMSR2 85-92GHz 79.8 *** *** *** *** *** *** 3.00 ***
20250908 12:07:33 AMSR2 37GHz 79.8 *** *** *** *** *** *** 0.40 ***
20250908 07:21:00 Metop-C ASCAT 83.9 19.17 -147.26 19.00 -147.00 0.56 1.58 *** ***
20250908 04:34:41 * SSMIS-16 85-92GHz 86.2 18.68 -146.48 18.86 -146.73 0.14 0.40 1.10 44.2
20250908 03:56:45 * SSMIS-17 85-92GHz 86.7 18.94 -146.59 18.81 -146.43 0.15 0.42 0.30 58.6
20250907 22:33:26 * GMI 85-92GHz 91.2 18.32 -145.80 18.50 -146.04 0.12 0.33 0.30 99.3
20250907 22:33:26 GMI 37GHz 91.2 18.27 -145.75 18.45 -145.99 0.13 0.36 0.20 ***
20250907 19:24:00 * Metop-A ASCAT 93.8 17.90 -145.13 17.75 -144.89 0.15 0.42 *** ***
20250907 13:43:16 * SSMIS-18 85-92GHz 102.1 17.52 -144.24 17.62 -144.48 0.12 0.33 0.40 100.0
20250907 11:25:01 * AMSR2 85-92GHz 106.0 17.30 -143.86 17.35 -143.96 0.11 0.32 0.20 100.0
20250907 11:25:01 AMSR2 37GHz 106.0 17.25 -143.86 17.30 -143.96 0.11 0.32 0.30 ***
20250907 09:08:27 GMI 85-92GHz 109.8 *** *** *** *** *** *** 0.10 ***
20250907 09:08:27 * GMI 37GHz 109.8 17.06 -143.42 17.05 -143.40 0.13 0.37 0.20 ***
20250907 06:54:00 * Metop-A ASCAT 113.5 16.89 -143.05 16.81 -142.90 0.16 0.44 *** ***
20250907 06:51:00 Metop-A ASCAT 113.6 *** *** *** *** *** *** *** ***
20250907 01:09:09 * SSMIS-18 85-92GHz 115.0 16.34 -142.14 16.25 -141.95 0.12 0.33 0.20 100.0
20250906 18:54:00 Metop-C ASCAT 110.7 *** *** *** *** *** *** *** ***
20250906 18:06:00 Metop-A ASCAT 109.8 *** *** *** *** *** *** *** ***
20250906 15:17:43 * SSMIS-17 85-92GHz 112.3 15.62 -140.43 15.59 -140.39 0.12 0.35 0.20 99.0
20250906 13:57:36 * SSMIS-18 85-92GHz 113.4 15.48 -140.41 15.59 -140.55 0.11 0.32 0.30 100.0
20250906 10:42:38 * AMSR2 85-92GHz 116.1 15.23 -139.86 15.31 -140.05 0.12 0.33 0.30 100.0
20250906 10:42:38 AMSR2 37GHz 116.1 15.23 -139.86 15.31 -140.05 0.12 0.34 0.20 ***
20250906 09:53:26 * GMI 85-92GHz 116.8 15.19 -139.85 15.15 -139.72 0.12 0.33 0.30 100.0
20250906 09:53:26 GMI 37GHz 116.8 15.19 -139.80 15.15 -139.66 0.14 0.38 0.10 ***
20250906 06:24:00 * Metop-C ASCAT 120.0 15.06 -139.22 15.05 -139.15 0.15 0.42 *** ***
20250906 05:33:00 Metop-A ASCAT 119.6 14.68 -138.92 14.70 -138.99 0.20 0.57 *** ***
20250906 03:19:45 * SSMIS-16 85-92GHz 117.8 14.83 -138.75 14.81 -138.69 0.12 0.34 0.20 100.0
20250906 02:42:43 SSMIS-17 85-92GHz 117.3 14.80 -138.59 14.81 -138.64 0.13 0.37 0.20 90.0
20250905 22:29:21 * AMSR2 85-92GHz 112.5 14.55 -138.01 14.44 -137.77 0.11 0.31 0.20 100.0
20250905 22:29:21 AMSR2 37GHz 112.5 14.55 -138.01 14.44 -137.77 0.11 0.32 0.20 ***
20250905 22:23:26 * GMI 85-92GHz 112.3 14.54 -137.99 14.44 -137.77 0.11 0.32 0.20 100.0
20250905 22:23:26 GMI 37GHz 112.3 14.54 -137.99 14.44 -137.77 0.12 0.34 0.20 ***
20250905 19:15:00 Metop-C ASCAT 107.1 14.38 -137.57 14.30 -137.40 0.16 0.44 *** ***
20250905 15:32:00 * SSMIS-17 85-92GHz 102.9 14.16 -136.99 14.14 -136.94 0.13 0.36 0.30 96.4
20250905 06:42:00 * Metop-C ASCAT 108.8 13.80 -135.90 13.80 -135.80 0.14 0.39 *** ***
20250905 03:32:56 * SSMIS-16 85-92GHz 112.0 13.74 -135.42 13.75 -135.35 0.13 0.37 0.20 79.5
20250905 02:56:27 * SSMIS-17 85-92GHz 112.5 13.75 -135.29 13.75 -135.30 0.14 0.38 0.30 62.6
20250904 10:55:08 * AMSR2 85-92GHz 116.8 13.75 -133.22 13.75 -133.36 0.11 0.31 0.30 100.0
20250904 10:55:08 AMSR2 37GHz 116.8 13.80 -133.12 13.80 -133.25 0.12 0.33 0.20 ***
20250904 09:43:27 * GMI 85-92GHz 118.8 13.75 -133.03 13.75 -132.94 0.11 0.32 0.30 100.0
20250904 09:43:27 GMI 37GHz 118.8 13.80 -133.03 13.80 -132.94 0.12 0.35 0.20 ***
20250904 06:12:00 Metop-A ASCAT 125.0 13.85 -132.64 13.85 -132.62 0.23 0.64 *** ***
20250904 03:46:45 * SSMIS-16 85-92GHz 125.0 13.65 -132.45 13.65 -132.36 0.12 0.35 0.20 100.0
20250904 03:10:40 * SSMIS-17 85-92GHz 125.0 13.75 -132.32 13.75 -132.30 0.12 0.35 0.20 100.0
20250903 17:24:00 * Metop-A ASCAT 108.0 13.95 -131.01 13.95 -131.09 0.20 0.56 *** ***
20250903 12:58:41 * SSMIS-18 85-92GHz 93.3 13.95 -130.52 13.95 -130.40 0.12 0.33 0.30 100.0
20250903 10:12:09 * AMSR2 85-92GHz 90.0 13.88 -130.15 13.85 -130.05 0.11 0.30 0.30 100.0
20250903 10:12:09 AMSR2 37GHz 90.0 13.88 -130.09 13.85 -130.00 0.11 0.32 0.20 ***
20250903 05:42:00 * Metop-C ASCAT 90.0 13.95 -129.72 13.95 -129.75 0.17 0.48 *** ***
20250903 04:54:00 Metop-A ASCAT 90.0 *** *** *** *** *** *** *** ***
20250903 00:23:04 * SSMIS-18 85-92GHz 90.0 13.70 -129.39 13.70 -129.35 0.15 0.42 0.20 53.4
20250902 22:53:26 * GMI 85-92GHz 88.2 13.75 -129.09 13.75 -129.20 0.12 0.35 0.20 100.0
20250902 22:53:26 GMI 37GHz 88.2 13.90 -129.04 13.90 -129.15 0.13 0.37 0.20 ***
20250902 21:57:58 * AMSR2 85-92GHz 86.6 13.80 -128.99 13.80 -128.89 0.11 0.32 0.20 100.0
20250902 21:57:58 AMSR2 37GHz 86.6 13.85 -128.99 13.85 -128.89 0.16 0.44 0.20 ***
20250902 18:36:00 * Metop-C ASCAT 81.0 13.85 -128.60 13.85 -128.54 0.14 0.41 *** ***
20250902 15:08:59 * SSMIS-16 85-92GHz 77.6 13.90 -128.15 13.90 -128.14 0.12 0.33 0.40 100.0
20250902 14:33:41 * SSMIS-17 85-92GHz 77.1 13.85 -128.15 13.85 -128.19 0.12 0.35 0.30 100.0
20250902 06:03:00 * Metop-C ASCAT 65.0 13.40 -127.40 13.40 -127.39 0.15 0.43 *** ***
20250902 02:32:56 * SSMIS-16 85-92GHz 59.2 13.80 -127.20 13.80 -127.25 0.18 0.50 0.20 89.4
20250902 01:57:50 SSMIS-17 85-92GHz 58.3 *** *** *** *** *** *** 0.20 ***
20250901 18:06:00 * Metop-A ASCAT 55.0 14.00 -126.41 14.00 -126.40 0.13 0.37 *** ***
20250901 14:47:34 * SSMIS-17 85-92GHz 49.7 13.79 -126.04 13.78 -126.06 0.11 0.32 0.70 85.5
20250901 10:24:07 AMSR2 85-92GHz 43.7 14.06 -125.69 14.08 -125.50 0.19 0.53 0.60 67.2
20250901 10:24:07 * AMSR2 37GHz 43.7 14.01 -125.64 14.03 -125.45 0.13 0.38 0.30 ***
20250901 10:13:27 GMI 85-92GHz 43.5 14.06 -125.61 14.08 -125.45 0.16 0.46 0.50 74.5
20250901 10:13:27 GMI 37GHz 43.5 14.01 -125.61 14.03 -125.45 0.14 0.40 0.30 ***
20250901 02:46:23 SSMIS-16 85-92GHz 40.0 14.17 -125.01 14.15 -125.05 0.54 1.52 0.30 1.7
20250901 02:12:01 * SSMIS-17 85-92GHz 40.0 14.58 -124.41 14.51 -124.53 0.51 1.44 1.10 0.8
20250831 17:36:00 Metop-C ASCAT 35.0 14.55 -123.34 14.55 -123.39 0.20 0.55 *** ***
20250831 16:45:00 * Metop-A ASCAT 35.0 14.50 -122.92 14.50 -123.08 0.15 0.42 *** ***
20250831 11:59:32 * SSMIS-18 85-92GHz 35.0 14.70 -123.11 14.70 -123.11 0.39 1.09 0.80 8.1
20250831 09:41:03 AMSR2 85-92GHz 33.1 14.65 -122.52 14.65 -122.42 0.53 1.51 0.30 2.9
20250831 09:41:03 AMSR2 37GHz 33.1 14.20 -122.63 14.20 -122.52 0.61 1.72 0.30 ***

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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