-- 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
20181217 23:55:59 SSMIS-18 85-92GHz 20.1 19.19 82.58 19.14 82.55 0.54 1.52 3.00 0.2
20181217 22:27:51 SSMIS-16 85-92GHz 21.7 *** *** *** *** *** *** 2.40 ***
20181217 20:27:52 * AMSR2 85-92GHz 23.9 18.63 82.25 18.64 82.25 0.48 1.35 2.70 0.5
20181217 20:27:52 AMSR2 37GHz 23.9 *** *** *** *** *** *** 0.10 ***
20181217 16:03:00 Metop-A ASCAT 28.8 *** *** *** *** *** *** *** ***
20181217 15:30:00 * Metop-B ASCAT 29.4 17.31 82.21 17.19 82.17 0.12 0.35 *** ***
20181217 14:11:39 GMI 85-92GHz 30.0 17.10 82.57 17.14 82.59 0.36 1.01 3.00 0.0
20181217 14:11:39 GMI 37GHz 30.0 *** *** *** *** *** *** 3.00 ***
20181217 12:27:05 SSMIS-17 85-92GHz 30.0 17.42 81.83 17.27 81.83 0.64 1.80 0.20 0.0
20181217 09:53:43 SSMIS-16 85-92GHz 35.3 16.88 81.67 16.61 81.67 0.45 1.27 2.00 2.2
20181217 08:15:58 AMSR2 85-92GHz 39.3 16.07 82.51 16.11 82.51 0.39 1.10 0.10 3.2
20181217 08:15:58 AMSR2 37GHz 39.3 *** *** *** *** *** *** 0.50 ***
20181217 04:18:00 * Metop-B ASCAT 45.0 15.51 82.48 15.69 82.46 0.14 0.40 *** ***
20181217 03:12:00 Metop-A ASCAT 44.8 *** *** *** *** *** *** *** ***
20181217 01:15:05 SSMIS-17 85-92GHz 45.0 15.77 81.67 15.96 81.65 0.33 0.94 0.10 10.2
20181217 00:09:37 SSMIS-18 85-92GHz 45.0 15.67 82.04 15.56 82.03 0.40 1.12 0.20 22.5
20181216 22:41:46 * SSMIS-16 85-92GHz 47.2 15.38 82.74 15.53 82.76 0.33 0.93 1.30 12.8
20181216 19:46:01 AMSR2 85-92GHz 52.1 13.96 82.24 14.10 82.28 0.30 0.84 0.30 4.7
20181216 19:46:01 * AMSR2 37GHz 52.1 14.01 82.86 14.15 82.89 0.26 0.73 0.60 ***
20181216 15:01:40 * GMI 85-92GHz 55.0 13.81 82.26 13.74 82.36 0.20 0.56 0.40 88.1
20181216 15:01:40 GMI 37GHz 55.0 *** *** *** *** *** *** 0.40 ***
20181216 12:39:31 SSMIS-17 85-92GHz 55.0 13.44 82.76 13.27 82.96 0.33 0.93 0.60 29.1
20181216 11:33:01 SSMIS-18 85-92GHz 54.6 13.33 82.77 13.32 82.78 0.32 0.90 1.00 30.0
20181216 10:05:28 * SSMIS-16 85-92GHz 53.4 13.28 83.34 13.52 83.08 0.27 0.77 1.50 12.7
20181216 03:36:39 GMI 85-92GHz 48.0 12.10 84.32 11.82 84.39 0.28 0.80 1.80 11.1
20181216 03:36:39 * GMI 37GHz 48.0 12.15 84.01 11.87 84.08 0.14 0.39 1.00 ***
20181216 01:29:45 SSMIS-17 85-92GHz 46.2 11.58 84.51 11.80 84.45 0.52 1.46 2.10 1.4
20181216 00:22:53 SSMIS-18 85-92GHz 45.0 11.73 84.58 11.66 84.63 0.44 1.24 1.40 2.5
20181215 16:09:00 * Metop-B ASCAT 38.5 10.47 84.69 10.53 84.62 0.13 0.38 *** ***
20181215 15:00:00 * Metop-A ASCAT 37.5 10.42 84.80 10.39 84.83 0.14 0.41 *** ***
20181215 12:51:48 SSMIS-17 85-92GHz 35.0 10.12 85.56 10.02 85.62 0.54 1.52 3.00 3.0
20181215 11:44:48 * SSMIS-18 85-92GHz 35.0 9.42 85.42 9.40 85.43 0.30 0.85 2.80 7.6
20181215 10:17:48 * SSMIS-16 85-92GHz 35.0 10.02 85.68 10.14 85.64 0.46 1.29 2.50 1.9

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

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