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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
20200124 00:20:15 * SSMIS-18 85-92GHz 25.0 -28.24 72.57 -28.01 72.50 0.23 0.65 1.60 8.9
20200123 23:30:00 Geo NearIR 25.0 -28.18 74.62 -28.18 74.62 0.34 0.96 0.50 ***
20200123 23:30:00 Geo IR 25.0 -27.83 74.28 -27.83 74.28 0.45 1.26 0.40 1.5
20200123 22:55:59 * SSMIS-16 85-92GHz 25.0 -28.05 73.47 -28.21 73.52 0.29 0.82 2.70 1.1
20200123 20:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 1.00 ***
20200123 20:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.10 ***
20200123 20:29:27 AMSR2 85-92GHz 25.0 -26.81 72.14 -26.81 72.14 0.37 1.05 1.90 6.4
20200123 20:29:27 AMSR2 37GHz 25.0 -26.86 72.37 -26.86 72.37 0.38 1.08 1.30 ***
20200123 17:30:00 Geo NearIR 25.0 -25.66 74.09 -25.66 74.09 0.59 1.66 0.60 ***
20200123 17:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.10 ***
20200123 16:42:00 Metop-B ASCAT 25.0 -26.66 71.30 -26.88 71.36 0.35 0.98 *** ***
20200123 14:30:00 Geo NearIR 25.0 -24.79 73.41 -24.79 73.41 0.65 1.84 0.10 ***
20200123 14:30:00 * Geo IR 25.0 -24.89 73.33 -24.89 73.33 0.25 0.70 0.10 -0.1
20200123 13:44:30 SSMIS-17 85-92GHz 25.0 -24.75 72.75 -24.96 72.80 0.56 1.59 2.80 0.2
20200123 11:38:33 SSMIS-16 85-92GHz 25.3 -24.57 72.34 -24.53 72.33 0.34 0.96 2.00 1.2
20200123 11:30:00 Geo Vis 25.4 -25.76 70.49 -25.76 70.49 0.42 1.18 0.50 ***
20200123 11:30:00 Geo NearIR 25.4 -25.63 70.87 -25.63 70.87 1.05 2.97 0.40 ***
20200123 11:30:00 Geo IR 25.4 -24.21 72.91 -24.21 72.91 3.36 9.49 0.10 0.7
20200123 08:30:00 Geo Vis 27.9 -24.03 71.72 -24.03 71.72 1.00 2.83 0.80 ***
20200123 08:30:00 Geo NearIR 27.9 *** *** *** *** *** *** 0.10 ***
20200123 08:30:00 Geo IR 27.9 *** *** *** *** *** *** 0.10 ***
20200123 05:30:00 Geo Vis 30.4 -22.38 72.45 -22.38 72.45 0.69 1.96 0.20 ***
20200123 05:30:00 Geo NearIR 30.4 *** *** *** *** *** *** 0.30 ***
20200123 05:30:00 Geo IR 30.4 -22.38 72.53 -22.38 72.53 0.52 1.47 0.30 -0.3
20200123 04:15:00 Metop-B ASCAT 31.5 -23.34 70.40 -23.58 70.47 0.87 2.45 *** ***
20200123 02:30:00 * Geo Vis 32.9 -22.11 72.74 -22.11 72.74 0.20 0.58 0.50 ***
20200123 02:30:00 Geo NearIR 32.9 -21.04 71.81 -21.04 71.81 0.56 1.57 0.30 ***
20200123 02:30:00 Geo IR 32.9 -21.76 72.41 -21.76 72.41 1.13 3.18 0.80 0.2
20200123 01:14:03 SSMIS-17 85-92GHz 34.0 -21.98 71.19 -22.21 71.27 0.56 1.58 0.60 0.9
20200123 00:31:17 SSMIS-18 85-92GHz 35.0 -21.86 71.25 -21.67 71.18 0.27 0.77 0.50 21.0
20200122 23:30:00 * Geo NearIR 35.0 -21.52 71.58 -21.52 71.58 0.25 0.70 0.10 ***
20200122 23:30:00 Geo IR 35.0 -21.60 71.34 -21.60 71.34 0.36 1.02 0.20 0.1
20200122 23:07:33 SSMIS-16 85-92GHz 35.0 -21.72 70.99 -21.79 71.02 0.38 1.07 3.00 1.7
20200122 20:30:00 Geo NearIR 35.0 -20.97 71.02 -20.97 71.02 3.36 9.49 0.20 ***
20200122 20:30:00 Geo IR 35.0 -20.72 70.75 -20.72 70.75 1.41 3.97 1.00 0.8
20200122 19:16:39 GMI 85-92GHz 35.0 -21.17 70.78 -21.39 70.89 0.44 1.25 1.00 4.3
20200122 19:16:39 GMI 37GHz 35.0 -20.72 70.40 -20.94 70.51 0.27 0.76 1.00 ***
20200122 17:30:00 Geo NearIR 35.0 -20.17 70.49 -20.17 70.49 0.24 0.69 0.10 ***
20200122 17:30:00 * Geo IR 35.0 -20.55 70.59 -20.55 70.59 0.16 0.44 0.30 -0.5
20200122 15:48:00 Metop-A ASCAT 35.0 -20.81 69.82 -20.59 69.69 0.22 0.64 *** ***
20200122 14:30:00 Geo NearIR 35.0 -19.18 70.41 -19.18 70.41 0.57 1.60 0.10 ***
20200122 14:30:00 Geo IR 35.0 -19.28 70.70 -19.28 70.70 0.93 2.63 0.60 -2.8
20200122 11:30:00 * Geo Vis 35.0 -19.27 70.29 -19.27 70.29 0.17 0.48 0.30 ***
20200122 11:30:00 Geo NearIR 35.0 -19.17 70.32 -19.17 70.32 2.75 7.78 0.40 ***
20200122 11:30:00 Geo IR 35.0 -19.14 70.24 -19.14 70.24 0.17 0.48 0.30 1.1

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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