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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
20200416 05:30:00 Geo Vis 30.3 -17.69 82.01 -17.69 82.01 0.34 0.95 0.10 ***
20200416 05:30:00 Geo NearIR 30.3 -17.97 82.85 -17.97 82.85 1.65 4.66 0.60 ***
20200416 05:30:00 Geo IR 30.3 -17.74 82.74 -17.74 82.74 3.36 9.49 0.20 4.4
20200416 03:36:00 Metop-B ASCAT 31.3 -16.79 81.89 -16.72 82.00 0.36 1.02 *** ***
20200416 02:30:00 * Geo Vis 31.9 -17.27 82.06 -17.27 82.06 0.28 0.80 0.40 ***
20200416 02:30:00 Geo NearIR 31.9 -17.44 83.18 -17.44 83.18 1.34 3.78 0.10 ***
20200416 02:30:00 Geo IR 31.9 -17.39 82.19 -17.39 82.19 1.27 3.59 0.70 4.8
20200416 01:00:31 SSMIS-17 85-92GHz 32.8 *** *** *** *** *** *** 2.10 ***
20200415 23:42:20 SSMIS-18 85-92GHz 33.5 -16.13 82.90 -16.12 82.92 0.53 1.50 2.50 0.1
20200415 23:30:00 Geo NearIR 33.6 *** *** *** *** *** *** 0.70 ***
20200415 23:30:00 Geo IR 33.6 *** *** *** *** *** *** 0.40 ***
20200415 20:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.20 ***
20200415 20:30:00 Geo IR 35.0 -18.12 83.31 -18.12 83.31 0.80 2.26 0.10 -0.1
20200415 17:30:00 Geo NearIR 35.2 -16.58 84.04 -16.58 84.04 3.36 9.49 1.00 ***
20200415 17:30:00 Geo IR 35.2 -16.68 82.56 -16.68 82.56 3.36 9.49 1.00 12.7
20200415 16:27:00 * Metop-B ASCAT 35.6 -15.93 83.38 -15.98 83.26 0.18 0.52 *** ***
20200415 15:12:00 Metop-A ASCAT 36.2 *** *** *** *** *** *** *** ***
20200415 14:30:00 Geo NearIR 36.5 *** *** *** *** *** *** 0.30 ***
20200415 14:30:00 Geo IR 36.5 *** *** *** *** *** *** 0.10 ***
20200415 11:30:00 Geo Vis 37.7 -16.59 85.25 -16.59 85.25 3.36 9.49 0.90 ***
20200415 11:30:00 Geo NearIR 37.7 *** *** *** *** *** *** 0.80 ***
20200415 11:30:00 Geo IR 37.7 -16.61 85.27 -16.61 85.27 1.91 5.40 0.70 -0.6
20200415 10:31:06 SSMIS-16 85-92GHz 38.1 -16.16 84.09 -16.19 84.00 0.41 1.17 2.20 3.1
20200415 08:30:00 * Geo Vis 39.0 -16.50 85.66 -16.50 85.66 0.13 0.38 0.40 ***
20200415 08:30:00 Geo NearIR 39.0 *** *** *** *** *** *** 0.60 ***
20200415 08:30:00 Geo IR 39.0 -16.40 85.61 -16.40 85.61 0.28 0.80 1.00 1.0
20200415 08:25:55 AMSR2 85-92GHz 39.0 -16.05 84.08 -16.05 84.07 0.52 1.46 1.30 2.2
20200415 08:25:55 AMSR2 37GHz 39.0 -16.15 84.70 -16.15 84.70 0.40 1.14 0.90 ***
20200415 05:30:00 Geo Vis 40.0 -15.98 85.72 -15.98 85.72 0.98 2.76 0.10 ***
20200415 05:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.60 ***
20200415 05:30:00 Geo IR 40.0 -15.98 85.59 -15.98 85.59 3.36 9.49 0.80 -0.9
20200415 04:56:40 GMI 85-92GHz 40.0 -15.65 84.61 -15.68 84.54 0.29 0.82 1.10 2.8
20200415 04:56:40 GMI 37GHz 40.0 -15.70 84.50 -15.73 84.43 0.22 0.64 0.40 ***
20200415 03:54:00 Metop-B ASCAT 40.0 -15.51 84.71 -15.41 84.91 0.20 0.57 *** ***
20200415 02:42:00 Metop-A ASCAT 40.0 -15.50 84.74 -15.49 84.77 0.17 0.47 *** ***
20200415 02:39:00 * Metop-A ASCAT 40.0 -15.50 84.75 -15.49 84.77 0.17 0.47 *** ***
20200415 02:30:00 Geo Vis 40.0 *** *** *** *** *** *** 0.30 ***
20200415 02:30:00 Geo NearIR 40.0 -15.89 85.73 -15.89 85.73 1.02 2.87 0.80 ***
20200415 02:30:00 Geo IR 40.0 -15.86 85.81 -15.86 85.81 0.35 0.98 0.20 15.0
20200415 01:13:35 SSMIS-17 85-92GHz 40.0 -15.94 85.17 -16.04 84.98 0.60 1.71 2.30 0.1
20200414 23:30:00 Geo NearIR 40.0 -14.27 86.69 -14.27 86.69 0.40 1.13 0.30 ***
20200414 23:30:00 Geo IR 40.0 *** *** *** *** *** *** 0.10 ***
20200414 21:55:38 * SSMIS-16 85-92GHz 40.0 -15.05 85.65 -14.91 85.90 0.30 0.86 1.60 15.6
20200414 20:30:00 Geo NearIR 40.0 -14.31 87.11 -14.31 87.11 1.26 3.56 0.10 ***
20200414 20:30:00 Geo IR 40.0 -14.03 86.98 -14.03 86.98 1.06 3.01 0.70 -0.2
20200414 17:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 0.20 ***
20200414 17:30:00 * Geo IR 40.0 -14.54 87.12 -14.54 87.12 0.24 0.69 0.80 7.4

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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