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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
20180520 10:59:51 * AMSR2 85-92GHz 25.8 8.10 42.42 8.07 42.39 0.44 1.24 1.80 1.1
20180520 10:59:51 AMSR2 37GHz 25.8 8.60 42.42 8.57 42.39 0.58 1.63 0.30 ***
20180520 07:09:00 Metop-B ASCAT 29.0 *** *** *** *** *** *** *** ***
20180520 06:09:00 Metop-A ASCAT 29.9 *** *** *** *** *** *** *** ***
20180520 03:42:45 SSMIS-18 85-92GHz 31.9 8.96 42.79 9.02 42.88 0.64 1.80 1.40 0.0
20180520 00:53:29 * SSMIS-16 85-92GHz 34.3 9.95 42.74 10.03 42.84 0.46 1.31 0.50 4.4
20180519 22:33:15 * AMSR2 85-92GHz 37.4 9.93 43.06 9.88 42.99 0.30 0.84 0.40 40.9
20180519 22:33:15 AMSR2 37GHz 37.4 *** *** *** *** *** *** 0.20 ***
20180519 15:46:34 SSMIS-17 85-92GHz 48.7 *** *** *** *** *** *** 0.40 ***
20180519 15:03:49 SSMIS-18 85-92GHz 49.9 *** *** *** *** *** *** 0.40 ***
20180519 10:17:19 * AMSR2 85-92GHz 50.0 10.50 43.95 10.39 43.85 0.24 0.68 0.30 80.5
20180519 10:17:19 AMSR2 37GHz 50.0 10.45 44.01 10.34 43.90 0.36 1.00 0.20 ***
20180519 07:26:40 * GMI 85-92GHz 50.0 10.55 44.00 10.46 43.92 0.23 0.66 0.10 92.0
20180519 07:26:40 GMI 37GHz 50.0 *** *** *** *** *** *** 0.30 ***
20180519 01:05:49 * SSMIS-16 85-92GHz 55.0 11.06 44.68 11.02 44.58 0.20 0.56 0.40 80.4
20180518 20:01:40 GMI 85-92GHz 51.7 11.10 44.99 11.08 44.94 0.34 0.96 0.20 48.0
20180518 20:01:40 GMI 37GHz 51.7 *** *** *** *** *** *** 0.40 ***
20180518 18:57:00 Metop-B ASCAT 50.0 *** *** *** *** *** *** *** ***
20180518 17:57:00 * Metop-A ASCAT 50.0 11.12 45.14 11.14 45.17 0.13 0.36 *** ***
20180518 15:16:49 SSMIS-18 85-92GHz 50.0 11.56 45.20 11.59 45.25 0.61 1.73 2.50 0.0
20180518 12:28:14 * SSMIS-16 85-92GHz 50.0 11.44 45.32 11.46 45.38 0.32 0.90 0.10 30.2
20180518 11:36:49 SSMI-15 85-92GHz 50.0 11.46 45.32 11.46 45.33 0.35 0.99 2.60 5.9
20180518 06:51:00 * Metop-A ASCAT 50.0 11.51 45.80 11.55 45.89 0.17 0.47 *** ***
20180518 06:09:00 Metop-B ASCAT 50.0 11.59 45.84 11.61 45.89 0.22 0.61 *** ***
20180518 03:09:14 * SSMIS-17 85-92GHz 47.6 11.82 46.21 11.87 46.26 0.11 0.31 0.30 100.0
20180518 01:18:46 SSMIS-16 85-92GHz 46.1 *** *** *** *** *** *** 0.30 ***
20180517 22:44:39 AMSR2 85-92GHz 45.0 12.25 46.38 12.19 46.29 0.15 0.42 0.50 100.0
20180517 22:44:39 * AMSR2 37GHz 45.0 12.00 46.53 11.94 46.44 0.13 0.38 0.20 ***
20180517 18:18:00 Metop-A ASCAT 45.0 12.24 47.17 12.30 47.28 3.36 9.49 *** ***
20180517 17:36:00 Metop-B ASCAT 45.0 *** *** *** *** *** *** *** ***
20180517 12:41:34 * SSMIS-16 85-92GHz 45.0 12.58 47.93 12.62 48.05 0.24 0.67 0.90 16.6
20180517 11:53:01 SSMI-15 85-92GHz 44.9 12.75 48.16 12.76 48.19 0.38 1.06 0.50 5.0
20180517 10:30:02 * AMSR2 85-92GHz 43.8 13.13 48.01 13.11 47.93 0.19 0.54 0.30 87.4
20180517 10:30:02 AMSR2 37GHz 43.8 13.08 48.16 13.06 48.08 0.22 0.62 0.30 ***
20180517 07:36:40 GMI 85-92GHz 41.3 13.43 48.91 13.41 48.86 0.23 0.64 1.40 30.8
20180517 07:36:40 GMI 37GHz 41.3 13.23 48.71 13.21 48.65 0.28 0.79 0.50 ***
20180517 06:30:00 Metop-B ASCAT 40.2 *** *** *** *** *** *** *** ***
20180517 03:22:12 * SSMIS-17 85-92GHz 40.0 13.30 49.03 13.31 49.08 0.20 0.56 1.90 37.2
20180517 02:37:58 SSMIS-18 85-92GHz 40.0 13.36 49.15 13.36 49.16 0.27 0.76 1.50 29.8
20180516 22:01:21 * AMSR2 85-92GHz 38.4 13.33 49.60 13.31 49.47 0.26 0.72 0.80 21.4
20180516 22:01:21 AMSR2 37GHz 38.4 12.93 49.55 12.91 49.42 0.41 1.17 0.30 ***
20180516 20:11:39 * GMI 85-92GHz 36.8 12.91 49.58 12.91 49.55 0.27 0.76 3.00 0.0
20180516 20:11:39 GMI 37GHz 36.8 12.76 49.68 12.76 49.65 0.44 1.24 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

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