-- Link to M-PERC page --

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
20201212 23:30:00 Geo Vis 30.3 *** *** *** *** *** *** 1.00 ***
20201212 23:30:00 Geo IR 30.3 *** *** *** *** *** *** 0.30 ***
20201212 18:25:02 * SSMIS-17 85-92GHz 33.1 -15.43 173.66 -15.44 173.72 0.41 1.17 3.00 0.0
20201212 16:42:46 * SSMIS-18 85-92GHz 34.0 -15.05 171.95 -15.04 171.90 0.28 0.78 2.40 3.6
20201212 16:36:06 SSMIS-16 85-92GHz 34.1 -15.05 172.01 -15.04 171.95 0.47 1.32 2.40 1.4
20201212 08:39:00 * Metop-A ASCAT 32.8 -15.76 173.72 -15.76 173.77 0.26 0.73 *** ***
20201212 07:13:34 * SSMIS-17 85-92GHz 34.0 -15.69 174.56 -15.66 174.18 0.20 0.55 3.00 3.4
20201212 05:30:58 SSMIS-18 85-92GHz 35.4 -15.74 174.59 -15.73 174.59 0.44 1.24 0.80 4.7
20201212 02:33:46 AMSR2 85-92GHz 37.9 *** *** *** *** *** *** 3.00 ***
20201212 02:33:46 AMSR2 37GHz 37.9 *** *** *** *** *** *** 3.00 ***
20201211 20:09:00 * Metop-A ASCAT 40.0 -14.38 177.11 -14.41 177.01 0.24 0.68 *** ***
20201211 18:37:22 SSMIS-17 85-92GHz 40.3 -14.57 177.52 -14.43 177.67 0.53 1.49 1.10 0.7
20201211 16:54:25 SSMIS-18 85-92GHz 40.0 -13.71 178.37 -13.83 178.31 0.47 1.33 3.00 0.8
20201211 16:48:34 SSMIS-16 85-92GHz 40.0 *** *** *** *** *** *** 1.40 ***
20201211 10:15:00 Metop-B ASCAT 38.5 -13.27 177.89 -13.29 177.79 3.36 9.49 *** ***
20201211 09:00:00 * Metop-A ASCAT 37.5 -12.85 178.65 -12.85 178.68 0.25 0.70 *** ***
20201211 03:57:17 * SSMIS-16 85-92GHz 35.0 -11.31 180.02 -11.03 180.34 0.16 0.44 3.00 0.0
20201209 20:48:00 * Metop-A ASCAT 35.0 -11.15 179.24 -11.15 179.24 0.95 2.68 *** ***

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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