-- 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
20201216 17:33:19 SSMIS-17 85-92GHz 55.0 -25.96 -165.69 -26.10 -165.60 0.41 1.15 1.20 2.2
20201216 15:53:47 * SSMIS-18 85-92GHz 55.0 -24.93 -165.98 -24.65 -166.15 0.31 0.87 2.70 1.7
20201216 13:02:29 AMSR2 85-92GHz 55.0 *** *** *** *** *** *** 3.00 ***
20201216 13:02:29 AMSR2 37GHz 55.0 *** *** *** *** *** *** 3.00 ***
20201216 08:30:00 * Metop-B ASCAT 55.0 -22.64 -167.79 -22.80 -167.70 0.18 0.51 *** ***
20201216 07:15:00 * Metop-A ASCAT 55.0 -22.18 -168.21 -21.85 -168.42 0.19 0.54 *** ***
20201216 06:17:30 SSMIS-17 85-92GHz 55.0 -22.11 -168.21 -22.05 -168.26 0.51 1.44 1.80 2.8
20201216 04:37:51 * SSMIS-18 85-92GHz 55.0 -22.07 -168.61 -22.30 -168.32 0.25 0.71 1.50 20.8
20201215 20:00:00 Metop-B ASCAT 55.0 *** *** *** *** *** *** *** ***
20201215 17:45:22 SSMIS-17 85-92GHz 54.8 -20.22 -171.08 -20.25 -171.04 0.41 1.16 0.60 9.4
20201215 16:05:11 SSMIS-18 85-92GHz 53.4 -20.19 -171.14 -20.09 -171.36 0.16 0.46 1.60 74.1
20201215 15:58:04 * SSMIS-16 85-92GHz 53.3 -20.18 -171.22 -20.09 -171.41 0.16 0.46 1.50 76.4
20201215 08:51:00 * Metop-B ASCAT 47.4 -19.18 -172.88 -19.20 -172.85 0.14 0.40 *** ***
20201215 07:36:00 Metop-A ASCAT 46.3 -19.01 -173.10 -19.16 -172.80 0.21 0.60 *** ***
20201215 06:31:58 SSMIS-17 85-92GHz 45.4 -19.03 -172.53 -19.00 -172.59 0.26 0.74 0.60 62.4
20201215 04:51:27 SSMIS-18 85-92GHz 46.0 -19.29 -173.18 -19.35 -173.07 0.22 0.62 0.30 83.0
20201215 01:24:42 * AMSR2 85-92GHz 48.8 -18.97 -173.30 -18.95 -173.37 0.18 0.50 0.10 73.6
20201215 01:24:42 AMSR2 37GHz 48.8 -18.92 -173.88 -18.90 -173.95 0.28 0.78 0.50 ***
20201214 20:21:00 * Metop-B ASCAT 47.0 -18.62 -174.34 -18.60 -174.32 0.15 0.43 *** ***
20201214 19:06:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
20201214 17:58:27 SSMIS-17 85-92GHz 45.0 -17.95 -173.41 -17.95 -173.41 0.31 0.89 2.40 4.4
20201214 16:17:42 SSMIS-18 85-92GHz 45.0 -18.92 -173.46 -18.90 -173.55 0.49 1.40 1.30 2.3
20201214 16:10:49 SSMIS-16 85-92GHz 45.0 -18.92 -173.47 -18.90 -173.55 0.37 1.04 1.30 6.6
20201214 07:57:00 * Metop-A ASCAT 45.0 -18.54 -174.51 -18.64 -174.56 0.12 0.34 *** ***
20201214 06:45:42 SSMIS-17 85-92GHz 45.0 -18.35 -174.46 -18.29 -174.43 0.46 1.30 1.50 4.1
20201213 20:45:00 Metop-B ASCAT 37.3 *** *** *** *** *** *** *** ***
20201213 20:42:00 Metop-B ASCAT 37.3 *** *** *** *** *** *** *** ***
20201213 19:27:00 * Metop-A ASCAT 36.2 -17.76 -173.88 -17.70 -173.80 0.11 0.31 *** ***
20201213 18:11:33 SSMIS-17 85-92GHz 35.0 -17.66 -173.39 -17.65 -173.38 0.54 1.52 1.40 1.6
20201213 16:30:03 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 2.80 ***
20201213 12:30:01 AMSR2 85-92GHz 35.0 -17.05 -172.88 -16.97 -172.84 0.56 1.57 1.00 1.3
20201213 12:30:01 * AMSR2 37GHz 35.0 -17.25 -173.35 -17.17 -173.31 0.41 1.17 0.70 ***

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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