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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
20230927 19:30:00 Metop-A ASCAT 20.0 10.70 -143.33 10.85 -142.91 0.59 1.66 *** ***
20230927 18:42:00 Metop-C ASCAT 20.0 10.78 -143.10 10.85 -142.91 0.39 1.10 *** ***
20230927 15:31:26 * SSMIS-16 85-92GHz 20.0 11.76 -142.26 11.81 -142.11 0.27 0.76 2.70 3.7
20230927 13:38:43 SSMIS-18 85-92GHz 20.0 11.95 -141.57 11.81 -141.95 0.28 0.80 0.50 2.4
20230927 12:06:15 GMI 85-92GHz 20.0 12.10 -141.24 12.11 -141.21 0.24 0.68 0.70 7.5
20230927 12:06:15 * GMI 37GHz 20.0 11.95 -141.19 11.96 -141.16 0.22 0.64 0.30 ***
20230927 11:20:26 * AMSR2 85-92GHz 20.0 12.13 -140.92 12.06 -141.10 0.23 0.64 0.50 11.3
20230927 11:20:26 AMSR2 37GHz 20.0 12.03 -140.97 11.96 -141.16 0.28 0.78 0.40 ***
20230927 06:54:00 Metop-A ASCAT 20.0 12.16 -139.51 12.25 -139.25 1.49 4.22 *** ***
20230927 06:09:00 * Metop-C ASCAT 20.0 12.09 -139.29 12.10 -139.25 0.46 1.30 *** ***
20230927 02:54:22 SSMIS-16 85-92GHz 21.3 12.60 -138.89 12.59 -138.91 0.38 1.06 0.30 2.9
20230927 01:01:41 * SSMIS-18 85-92GHz 22.1 13.37 -138.10 13.47 -137.81 0.31 0.87 1.30 4.7
20230926 22:51:15 GMI 85-92GHz 23.0 13.48 -137.38 13.37 -137.71 0.63 1.78 0.30 0.1
20230926 22:51:15 GMI 37GHz 23.0 *** *** *** *** *** *** 0.50 ***
20230926 18:09:00 Metop-A ASCAT 24.9 13.34 -135.64 13.35 -135.59 0.54 1.54 *** ***
20230926 15:28:47 * SSMIS-17 85-92GHz 25.0 14.46 -135.01 14.50 -134.87 0.34 0.96 1.30 2.0
20230926 11:26:15 GMI 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230926 11:26:15 GMI 37GHz 25.0 *** *** *** *** *** *** 3.00 ***
20230926 10:36:35 * AMSR2 85-92GHz 25.0 14.76 -133.57 14.65 -133.98 0.25 0.71 1.80 21.3
20230926 10:36:35 AMSR2 37GHz 25.0 14.56 -133.62 14.45 -134.03 0.26 0.75 0.30 ***
20230926 06:30:00 Metop-C ASCAT 25.0 14.38 -132.47 14.40 -132.35 0.27 0.77 *** ***
20230926 05:36:00 * Metop-A ASCAT 25.0 14.67 -132.31 14.65 -132.40 0.18 0.51 *** ***
20230926 02:53:10 SSMIS-17 85-92GHz 25.0 14.93 -131.77 14.93 -131.80 0.38 1.06 0.70 3.6
20230925 22:23:09 * AMSR2 85-92GHz 25.0 15.34 -130.80 15.38 -130.54 0.21 0.60 0.60 6.0
20230925 22:23:09 AMSR2 37GHz 25.0 15.39 -130.90 15.43 -130.64 0.31 0.87 0.70 ***
20230925 18:27:00 * Metop-A ASCAT 25.0 14.29 -129.83 14.30 -129.74 0.42 1.20 *** ***
20230925 17:42:00 Metop-C ASCAT 25.1 14.81 -129.37 14.80 -129.43 0.65 1.83 *** ***
20230925 14:15:27 * SSMIS-16 85-92GHz 26.6 15.69 -129.08 15.67 -129.23 0.27 0.76 3.00 5.0
20230925 12:22:54 SSMIS-18 85-92GHz 27.3 15.88 -128.48 15.88 -128.40 0.32 0.92 0.80 2.5
20230925 09:53:23 * AMSR2 85-92GHz 28.4 15.87 -127.86 15.88 -127.67 0.29 0.81 1.30 22.8
20230925 09:53:23 AMSR2 37GHz 28.4 15.82 -127.86 15.83 -127.67 0.30 0.86 1.00 ***
20230925 05:57:00 Metop-A ASCAT 30.0 14.90 -126.82 14.90 -126.83 0.50 1.42 *** ***
20230925 05:09:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20230925 03:07:24 * SSMIS-17 85-92GHz 30.0 15.23 -126.39 15.22 -126.37 0.37 1.04 0.60 1.8
20230925 01:39:59 * SSMIS-16 85-92GHz 30.0 15.15 -126.01 15.17 -126.32 0.30 0.84 0.10 4.4
20230924 23:47:20 SSMIS-18 85-92GHz 30.0 15.02 -125.85 15.03 -125.89 0.46 1.30 0.70 0.9
20230924 23:01:15 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20230924 23:01:15 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20230924 21:40:12 * AMSR2 85-92GHz 30.0 14.95 -125.80 14.95 -125.66 0.28 0.79 1.00 26.6
20230924 21:40:12 AMSR2 37GHz 30.0 15.00 -125.59 15.00 -125.45 0.51 1.43 0.40 ***
20230924 14:28:30 SSMIS-16 85-92GHz 30.0 15.26 -124.10 15.27 -124.23 0.33 0.93 2.20 4.1
20230924 14:14:34 SSMIS-17 85-92GHz 30.0 15.06 -123.88 15.07 -124.08 0.61 1.71 0.90 0.1
20230924 12:36:02 * SSMIS-18 85-92GHz 30.0 15.18 -123.56 15.16 -123.41 0.24 0.69 2.80 4.2
20230924 11:36:15 * GMI 85-92GHz 30.0 15.22 -123.16 15.24 -123.26 0.23 0.66 2.20 6.9
20230924 11:36:15 GMI 37GHz 30.0 *** *** *** *** *** *** 2.10 ***
20230924 01:52:44 * SSMIS-16 85-92GHz 30.0 14.03 -121.41 14.08 -121.50 0.36 1.02 1.20 7.1
20230924 00:00:00 * SSMIS-18 85-92GHz 30.0 13.95 -120.94 13.95 -120.94 0.37 1.06 1.00 7.8
20230923 22:21:14 GMI 85-92GHz 30.0 *** *** *** *** *** *** 3.00 ***
20230923 22:21:14 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20230923 20:56:42 AMSR2 85-92GHz 30.0 *** *** *** *** *** *** 0.80 ***
20230923 20:56:42 AMSR2 37GHz 30.0 *** *** *** *** *** *** 3.00 ***

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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