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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
20210119 05:30:00 Geo Vis 30.3 *** *** *** *** *** *** 0.40 ***
20210119 05:30:00 Geo NearIR 30.3 *** *** *** *** *** *** 0.10 ***
20210119 05:30:00 Geo IR 30.3 -18.24 148.88 -18.24 148.88 3.36 9.49 0.10 -0.5
20210119 03:35:01 AMSR2 85-92GHz 31.3 *** *** *** *** *** *** 1.70 ***
20210119 03:35:01 AMSR2 37GHz 31.3 *** *** *** *** *** *** 2.10 ***
20210119 02:30:00 Geo Vis 31.9 -18.24 147.20 -18.24 147.20 3.36 9.49 0.90 ***
20210119 02:30:00 Geo NearIR 31.9 *** *** *** *** *** *** 0.10 ***
20210119 02:30:00 Geo IR 31.9 *** *** *** *** *** *** 0.20 ***
20210118 23:30:00 Geo Vis 33.6 *** *** *** *** *** *** 0.40 ***
20210118 23:30:00 Geo NearIR 33.6 *** *** *** *** *** *** 0.40 ***
20210118 23:30:00 Geo IR 33.6 *** *** *** *** *** *** 0.10 ***
20210118 22:06:00 Metop-A ASCAT 34.4 *** *** *** *** *** *** *** ***
20210118 20:30:00 Geo Vis 35.0 *** *** *** *** *** *** 1.00 ***
20210118 20:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.10 ***
20210118 20:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.30 ***
20210118 20:17:40 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 2.10 ***
20210118 19:01:48 * SSMIS-18 85-92GHz 35.0 -17.60 147.30 -17.60 147.30 0.48 1.34 2.80 0.2
20210118 18:43:09 SSMIS-16 85-92GHz 35.0 -17.60 147.56 -17.60 147.56 0.49 1.40 1.90 1.4
20210118 17:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.10 ***
20210118 17:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.10 ***
20210118 15:23:09 * AMSR2 85-92GHz 35.0 -18.59 148.76 -18.61 148.78 0.17 0.49 3.00 0.0
20210118 15:23:09 AMSR2 37GHz 35.0 -18.64 147.92 -18.66 147.94 0.38 1.08 3.00 ***
20210118 14:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.80 ***
20210118 14:30:00 Geo IR 35.0 -19.22 148.65 -19.22 148.65 0.71 2.00 0.60 2.1
20210118 12:09:00 Metop-B ASCAT 35.0 -17.70 147.45 -17.70 147.44 0.21 0.60 *** ***
20210118 11:30:00 Geo NearIR 36.7 -18.88 147.89 -18.88 147.89 0.23 0.64 0.10 ***
20210118 11:30:00 Geo IR 36.7 -18.85 147.81 -18.85 147.81 0.24 0.67 0.10 12.5
20210118 10:57:00 Metop-A ASCAT 38.5 -17.65 147.48 -17.65 147.49 0.34 0.96 *** ***
20210118 09:04:50 * SSMIS-17 85-92GHz 44.7 -18.55 147.57 -18.55 147.52 0.15 0.43 2.60 7.9
20210118 08:30:00 Geo NearIR 46.7 -18.50 146.78 -18.50 146.78 0.48 1.36 0.40 ***
20210118 08:30:00 * Geo IR 46.7 -18.62 146.36 -18.62 146.36 0.21 0.59 0.10 8.7
20210118 05:30:00 Geo Vis 55.0 -18.08 146.30 -18.08 146.30 0.91 2.56 0.30 ***
20210118 05:30:00 Geo NearIR 55.0 -17.78 146.30 -17.78 146.30 1.08 3.05 0.90 ***
20210118 05:30:00 Geo IR 55.0 -18.11 146.01 -18.11 146.01 0.27 0.76 0.10 1.6
20210118 02:30:00 Geo Vis 55.0 -17.47 146.50 -17.47 146.50 0.29 0.82 1.00 ***
20210118 02:30:00 Geo NearIR 55.0 -17.40 146.23 -17.40 146.23 1.08 3.05 1.00 ***
20210118 02:30:00 Geo IR 55.0 -17.15 146.02 -17.15 146.02 0.22 0.63 0.20 14.9
20210117 23:42:00 Metop-B ASCAT 55.0 *** *** *** *** *** *** *** ***
20210117 23:39:00 Metop-B ASCAT 55.0 *** *** *** *** *** *** *** ***
20210117 23:30:00 Geo Vis 55.0 -17.05 146.54 -17.05 146.54 0.20 0.58 0.10 ***
20210117 23:30:00 Geo NearIR 55.0 -16.97 146.54 -16.97 146.54 1.79 5.06 1.00 ***
20210117 23:30:00 * Geo IR 55.0 -16.85 146.25 -16.85 146.25 0.13 0.37 0.20 23.4
20210117 20:30:46 * SSMIS-17 85-92GHz 55.0 -16.53 146.70 -16.53 146.70 0.17 0.49 0.40 77.2
20210117 20:30:00 Geo Vis 55.0 -16.73 146.38 -16.73 146.38 3.36 9.49 0.10 ***
20210117 20:30:00 Geo NearIR 55.0 -16.50 146.18 -16.50 146.18 0.97 2.74 0.10 ***
20210117 20:30:00 Geo IR 55.0 -16.53 146.44 -16.53 146.44 1.14 3.23 0.10 5.1
20210117 17:30:00 Geo NearIR 54.6 -15.94 146.25 -15.94 146.25 0.25 0.72 0.30 ***
20210117 17:30:00 * Geo IR 54.6 -16.02 146.23 -16.02 146.23 0.13 0.37 0.10 13.1
20210117 14:30:00 Geo NearIR 52.1 -15.84 146.27 -15.84 146.27 2.50 7.06 0.20 ***
20210117 14:30:00 Geo IR 52.1 -15.79 146.06 -15.79 146.06 0.34 0.95 0.70 0.5
20210117 11:30:00 Geo NearIR 49.6 *** *** *** *** *** *** 0.30 ***
20210117 11:30:00 * Geo IR 49.6 -15.84 146.32 -15.84 146.32 0.10 0.27 0.10 49.4
20210117 11:18:00 Metop-A ASCAT 49.4 *** *** *** *** *** *** *** ***
20210117 09:18:32 SSMIS-17 85-92GHz 47.8 -15.61 146.81 -15.56 146.81 0.16 0.46 0.30 91.7
20210117 08:30:00 Geo NearIR 47.1 -15.61 146.53 -15.61 146.53 0.23 0.65 0.10 ***
20210117 08:30:00 * Geo IR 47.1 -15.68 146.34 -15.68 146.34 0.14 0.40 0.80 -3.3
20210117 05:30:00 Geo Vis 45.0 -15.68 146.42 -15.68 146.42 0.32 0.89 0.50 ***
20210117 05:30:00 Geo NearIR 45.0 -15.40 146.19 -15.40 146.19 0.52 1.48 0.40 ***
20210117 05:30:00 Geo IR 45.0 -15.53 146.42 -15.53 146.42 0.24 0.68 0.40 -2.6
20210117 03:48:04 AMSR2 85-92GHz 45.9 -15.33 146.66 -15.26 146.64 0.23 0.64 0.20 59.6
20210117 03:48:04 AMSR2 37GHz 45.9 -15.68 146.87 -15.61 146.84 0.24 0.67 2.10 ***
20210117 02:30:00 * Geo Vis 45.0 -15.36 146.58 -15.36 146.58 0.17 0.48 0.10 ***
20210117 02:30:00 Geo NearIR 45.0 -15.28 146.50 -15.28 146.50 0.49 1.40 0.80 ***
20210117 02:30:00 Geo IR 45.0 -15.13 146.17 -15.13 146.17 0.25 0.70 0.50 6.8
20210116 23:30:00 Geo Vis 45.0 -15.28 146.48 -15.28 146.48 0.18 0.52 0.20 ***
20210116 23:30:00 Geo NearIR 45.0 -15.13 146.43 -15.13 146.43 0.72 2.03 0.60 ***
20210116 23:30:00 * Geo IR 45.0 -15.16 146.37 -15.16 146.37 0.15 0.43 0.10 31.9

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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