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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
20200819 17:30:00 Geo NearIR 20.6 *** *** *** *** *** *** 0.30 ***
20200819 17:30:00 Geo IR 20.6 *** *** *** *** *** *** 0.90 ***
20200819 14:30:00 Geo NearIR 24.4 23.20 108.26 23.20 108.26 3.36 9.49 0.40 ***
20200819 14:30:00 Geo IR 24.4 *** *** *** *** *** *** 0.80 ***
20200819 13:33:00 Metop-A ASCAT 25.6 *** *** *** *** *** *** *** ***
20200819 11:30:00 Geo NearIR 28.1 22.65 110.66 22.65 110.66 3.36 9.49 0.20 ***
20200819 11:30:00 Geo IR 28.1 22.75 111.15 22.75 111.15 3.36 9.49 0.10 3.3
20200819 11:10:05 * SSMIS-17 85-92GHz 28.5 23.72 110.57 23.75 110.50 0.32 0.90 1.20 8.0
20200819 08:38:10 * SSMIS-16 85-92GHz 31.7 23.46 111.29 23.45 111.32 0.32 0.90 0.70 6.8
20200819 08:30:00 Geo Vis 31.9 22.95 109.50 22.95 109.50 1.05 2.98 0.20 ***
20200819 08:30:00 * Geo NearIR 31.9 22.58 111.59 22.58 111.59 0.41 1.17 0.50 ***
20200819 08:30:00 Geo IR 31.9 22.40 111.65 22.40 111.65 1.07 3.01 0.10 47.8
20200819 05:31:24 AMSR2 85-92GHz 36.1 22.66 112.06 22.66 112.07 0.48 1.37 3.00 0.1
20200819 05:31:24 AMSR2 37GHz 36.1 *** *** *** *** *** *** 1.00 ***
20200819 05:30:00 Geo Vis 36.1 *** *** *** *** *** *** 0.10 ***
20200819 05:30:00 Geo NearIR 36.1 22.14 112.09 22.14 112.09 0.62 1.76 0.10 ***
20200819 05:30:00 Geo IR 36.1 22.09 111.90 22.09 111.90 3.36 9.49 0.50 1.4
20200819 02:30:00 Geo Vis 42.8 *** *** *** *** *** *** 0.30 ***
20200819 02:30:00 Geo NearIR 42.8 21.46 112.64 21.46 112.64 0.58 1.63 0.70 ***
20200819 02:30:00 Geo IR 42.8 21.36 111.80 21.36 111.80 3.36 9.49 0.60 1.6
20200819 01:57:00 * Metop-B ASCAT 44.0 21.74 111.58 21.78 111.48 0.28 0.78 *** ***
20200819 00:42:00 Metop-A ASCAT 46.8 *** *** *** *** *** *** *** ***
20200818 23:54:26 SSMIS-17 85-92GHz 48.5 *** *** *** *** *** *** 3.00 ***
20200818 23:30:00 Geo Vis 49.4 *** *** *** *** *** *** 0.10 ***
20200818 23:30:00 Geo NearIR 49.4 22.08 113.03 22.08 113.03 0.67 1.90 0.50 ***
20200818 23:30:00 Geo IR 49.4 *** *** *** *** *** *** 0.20 ***
20200818 20:30:00 Geo NearIR 55.0 21.20 113.55 21.20 113.55 1.43 4.04 0.10 ***
20200818 20:30:00 Geo IR 55.0 21.58 113.38 21.58 113.38 0.62 1.74 0.20 7.6
20200818 18:36:02 AMSR2 85-92GHz 55.0 21.86 113.54 21.75 113.73 0.22 0.62 0.90 71.6
20200818 18:36:02 * AMSR2 37GHz 55.0 21.71 113.75 21.60 113.94 0.16 0.45 0.20 ***
20200818 17:30:00 Geo NearIR 54.2 21.10 113.97 21.10 113.97 1.43 4.05 0.20 ***
20200818 17:30:00 Geo IR 54.2 20.90 113.54 20.90 113.54 3.36 9.49 0.20 3.6
20200818 14:30:00 Geo NearIR 49.2 20.60 114.42 20.60 114.42 0.74 2.09 0.10 ***
20200818 14:30:00 Geo IR 49.2 *** *** *** *** *** *** 0.10 ***
20200818 12:12:00 * Metop-A ASCAT 45.1 21.01 114.55 20.96 114.65 0.20 0.56 *** ***
20200818 11:30:00 Geo NearIR 44.6 21.01 114.95 21.01 114.95 0.94 2.65 0.20 ***
20200818 11:30:00 Geo IR 44.6 20.81 114.70 20.81 114.70 3.36 9.49 0.10 3.5
20200818 08:30:00 Geo Vis 42.1 *** *** *** *** *** *** 0.10 ***
20200818 08:30:00 Geo NearIR 42.1 20.85 115.25 20.85 115.25 0.48 1.36 1.00 ***
20200818 08:30:00 Geo IR 42.1 19.47 114.90 19.47 114.90 3.36 9.49 0.60 4.2
20200818 05:30:00 Geo Vis 39.2 20.70 115.79 20.70 115.79 0.39 1.11 0.20 ***
20200818 05:30:00 Geo NearIR 39.2 20.57 116.00 20.57 116.00 0.74 2.09 0.20 ***
20200818 05:30:00 Geo IR 39.2 20.70 115.79 20.70 115.79 3.36 9.49 0.10 0.5
20200818 02:30:00 Geo Vis 34.2 20.58 116.43 20.58 116.43 1.64 4.62 0.10 ***
20200818 02:30:00 Geo NearIR 34.2 20.38 116.56 20.38 116.56 3.36 9.49 0.10 ***
20200818 02:30:00 Geo IR 34.2 *** *** *** *** *** *** 0.20 ***
20200818 02:18:00 * Metop-B ASCAT 33.8 20.42 116.11 20.43 116.08 0.15 0.42 *** ***
20200817 23:30:00 Geo Vis 29.6 *** *** *** *** *** *** 0.30 ***
20200817 23:30:00 Geo NearIR 29.6 19.79 116.83 19.79 116.83 0.64 1.82 0.20 ***
20200817 23:30:00 Geo IR 29.6 19.14 116.73 19.14 116.73 3.36 9.49 0.20 7.4
20200817 22:27:24 SSMIS-17 85-92GHz 28.7 *** *** *** *** *** *** 3.00 ***
20200817 21:01:37 * SSMIS-18 85-92GHz 27.5 20.40 116.76 20.37 116.95 0.27 0.78 1.00 6.6
20200817 20:30:00 Geo NearIR 27.1 19.69 117.58 19.69 117.58 0.47 1.34 0.20 ***
20200817 20:30:00 Geo IR 27.1 *** *** *** *** *** *** 0.30 ***
20200817 17:53:14 AMSR2 85-92GHz 25.0 19.70 117.93 19.67 118.06 0.48 1.35 1.10 3.6
20200817 17:53:14 * AMSR2 37GHz 25.0 19.50 118.20 19.47 118.33 0.37 1.05 0.30 ***
20200817 17:30:00 Geo NearIR 25.0 18.86 118.54 18.86 118.54 0.90 2.55 0.10 ***
20200817 17:30:00 Geo IR 25.0 19.23 118.41 19.23 118.41 3.36 9.49 0.20 5.5

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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