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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
20230819 04:47:19 * SSMIS-17 85-92GHz 25.0 11.04 -164.43 11.00 -164.71 0.27 0.77 0.70 28.2
20230819 04:45:09 SSMIS-16 85-92GHz 25.0 10.90 -164.42 10.85 -164.71 0.29 0.83 0.60 36.1
20230819 02:52:20 SSMIS-18 85-92GHz 25.0 11.26 -163.58 11.26 -163.61 0.49 1.40 1.30 1.4
20230819 00:37:45 * AMSR2 85-92GHz 25.0 10.94 -163.28 10.96 -163.13 0.29 0.81 0.50 8.1
20230819 00:37:45 AMSR2 37GHz 25.0 *** *** *** *** *** *** 0.70 ***
20230818 20:51:00 Metop-C ASCAT 25.0 10.62 -162.74 10.61 -162.77 0.36 1.02 *** ***
20230818 19:57:00 * Metop-A ASCAT 25.0 10.69 -162.49 10.66 -162.72 0.27 0.78 *** ***
20230818 17:38:03 SSMIS-17 85-92GHz 25.2 11.71 -161.17 11.70 -161.25 0.44 1.23 1.50 3.3
20230818 15:54:38 * SSMIS-16 85-92GHz 25.9 11.26 -161.26 11.29 -161.06 0.36 1.01 2.40 5.0
20230818 12:06:14 GMI 85-92GHz 27.5 11.72 -160.30 11.72 -160.28 0.49 1.38 2.70 0.6
20230818 12:06:14 * GMI 37GHz 27.5 11.07 -160.20 11.07 -160.18 0.45 1.28 2.60 ***
20230818 08:18:00 * Metop-C ASCAT 29.0 11.41 -159.72 11.39 -159.86 0.44 1.25 *** ***
20230818 07:24:00 Metop-A ASCAT 29.4 10.43 -158.87 10.45 -158.60 2.53 7.16 *** ***
20230818 00:36:14 GMI 85-92GHz 30.0 11.98 -158.08 11.98 -157.97 0.27 0.75 2.30 6.8
20230818 00:36:14 * GMI 37GHz 30.0 11.83 -157.82 11.83 -157.71 0.22 0.61 1.20 ***
20230817 23:54:37 AMSR2 85-92GHz 30.0 11.99 -157.80 11.98 -157.81 0.38 1.08 1.60 1.5
20230817 23:54:37 * AMSR2 37GHz 30.0 11.94 -157.70 11.93 -157.71 0.23 0.65 0.80 ***
20230817 20:21:00 Metop-A ASCAT 30.0 11.35 -156.79 11.35 -156.95 0.89 2.53 *** ***
20230817 20:18:00 Metop-C ASCAT 30.0 11.90 -156.62 11.90 -156.79 0.52 1.46 *** ***
20230817 20:18:00 Metop-A ASCAT 30.0 11.90 -156.62 11.90 -156.79 0.52 1.46 *** ***
20230817 19:33:00 * Metop-C ASCAT 30.0 11.80 -156.46 11.80 -156.84 0.40 1.14 *** ***
20230817 16:07:28 SSMIS-16 85-92GHz 31.6 12.45 -155.66 12.40 -155.41 0.49 1.40 1.70 1.5
20230817 14:14:48 * SSMIS-18 85-92GHz 33.1 12.46 -155.30 12.50 -155.46 0.44 1.25 1.90 2.7
20230817 07:45:00 Metop-A ASCAT 38.5 *** *** *** *** *** *** *** ***
20230817 06:57:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** ***
20230817 03:30:13 * SSMIS-16 85-92GHz 40.0 12.23 -153.73 12.22 -153.64 0.34 0.95 1.70 6.8
20230817 01:37:28 * SSMIS-18 85-92GHz 40.0 11.96 -153.02 11.99 -153.24 0.25 0.72 2.70 9.1
20230816 23:11:34 AMSR2 85-92GHz 40.0 12.07 -152.76 12.09 -152.89 0.33 0.92 2.10 11.1
20230816 23:11:34 * AMSR2 37GHz 40.0 12.02 -152.60 12.04 -152.74 0.26 0.72 0.80 ***
20230816 19:51:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** ***
20230816 16:23:59 SSMIS-17 85-92GHz 41.3 12.06 -151.44 12.03 -151.12 0.50 1.41 0.20 1.6
20230816 14:27:44 SSMIS-18 85-92GHz 42.9 11.82 -150.79 11.83 -150.92 0.51 1.44 1.20 3.7
20230816 12:16:15 GMI 85-92GHz 45.0 12.10 -150.25 12.10 -150.19 0.19 0.55 1.10 90.8
20230816 12:16:15 * GMI 37GHz 45.0 11.40 -150.56 11.40 -150.49 0.15 0.44 1.30 ***
20230816 03:46:43 SSMIS-17 85-92GHz 45.4 11.73 -148.21 11.67 -148.03 0.49 1.39 1.80 2.7
20230816 03:43:14 * SSMIS-16 85-92GHz 45.4 11.33 -148.96 11.27 -148.80 0.30 0.86 0.30 4.5
20230816 01:50:17 SSMIS-18 85-92GHz 45.0 12.03 -148.78 12.13 -149.03 0.34 0.97 0.10 8.3
20230816 00:46:15 GMI 85-92GHz 45.0 11.95 -148.21 11.90 -148.05 0.47 1.33 0.30 17.4
20230816 00:46:15 * GMI 37GHz 45.0 11.40 -147.80 11.35 -147.64 0.17 0.49 0.90 ***
20230815 16:37:35 * SSMIS-17 85-92GHz 45.9 11.37 -146.23 11.37 -146.53 0.32 0.91 1.50 38.8
20230815 14:52:52 * SSMIS-16 85-92GHz 45.0 11.45 -145.67 11.45 -145.70 0.18 0.50 1.10 75.5
20230815 11:38:46 AMSR2 85-92GHz 45.0 11.25 -145.27 11.25 -145.35 0.16 0.44 1.10 88.7
20230815 11:38:46 * AMSR2 37GHz 45.0 11.10 -145.17 11.10 -145.25 0.10 0.29 0.70 ***
20230815 06:45:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
20230815 04:00:03 * SSMIS-17 85-92GHz 43.3 10.85 -143.82 10.90 -143.60 0.32 0.90 2.30 2.2
20230814 15:05:40 * SSMIS-16 85-92GHz 35.0 11.65 -141.07 11.65 -141.06 0.25 0.70 1.00 23.7
20230814 13:13:00 * SSMIS-18 85-92GHz 35.0 11.40 -140.50 11.40 -140.33 0.21 0.60 1.40 14.3
20230814 10:55:49 AMSR2 85-92GHz 35.0 11.25 -140.10 11.25 -140.28 0.23 0.66 2.00 12.8
20230814 10:55:49 AMSR2 37GHz 35.0 11.20 -140.00 11.20 -140.18 0.25 0.72 1.30 ***
20230814 07:06:00 * Metop-A ASCAT 35.0 11.20 -139.26 11.20 -139.04 0.15 0.41 *** ***
20230814 06:21:00 * Metop-C ASCAT 35.0 11.20 -139.12 11.20 -139.05 0.15 0.42 *** ***
20230814 06:18:00 Metop-C ASCAT 35.0 11.20 -139.11 11.20 -139.05 0.15 0.42 *** ***
20230814 02:28:09 * SSMIS-16 85-92GHz 32.1 11.19 -138.44 11.18 -138.53 0.45 1.28 0.60 1.5
20230813 22:40:17 AMSR2 85-92GHz 30.0 11.50 -137.52 11.48 -137.77 0.55 1.57 1.60 1.3
20230813 22:40:17 * AMSR2 37GHz 30.0 10.90 -137.62 10.88 -137.87 0.36 1.01 0.90 ***

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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