-- 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
20250731 07:27:00 Metop-C ASCAT 31.9 *** *** *** *** *** *** *** ***
20250731 05:03:40 SSMIS-16 85-92GHz 32.9 14.47 -160.16 14.53 -160.41 0.54 1.53 0.20 0.4
20250731 04:44:33 * SSMIS-17 85-92GHz 33.0 14.40 -160.18 14.48 -160.51 0.46 1.31 1.20 1.0
20250730 20:21:00 Metop-C ASCAT 35.0 13.89 -156.95 13.92 -157.16 3.36 9.49 *** ***
20250730 14:26:26 * SSMIS-18 85-92GHz 35.0 13.27 -155.23 13.30 -155.40 0.35 0.99 1.30 1.0
20250730 10:48:26 * GMI 85-92GHz 35.0 13.64 -154.60 13.71 -154.96 0.35 0.99 3.00 0.0
20250730 10:48:26 GMI 37GHz 35.0 *** *** *** *** *** *** 0.20 ***
20250730 01:50:32 * SSMIS-18 85-92GHz 35.0 13.51 -151.75 13.57 -152.12 0.36 1.02 3.00 0.0
20250729 23:05:46 * AMSR2 85-92GHz 35.0 12.86 -150.74 12.91 -151.02 0.37 1.05 0.60 40.5
20250729 23:05:46 AMSR2 37GHz 35.0 *** *** *** *** *** *** 0.40 ***
20250729 21:28:26 GMI 85-92GHz 35.0 12.88 -150.47 12.86 -150.33 0.51 1.44 0.70 2.4
20250729 21:28:26 * GMI 37GHz 35.0 12.68 -150.11 12.66 -149.97 0.35 1.00 1.90 ***
20250729 09:53:26 * GMI 85-92GHz 35.0 12.30 -147.03 12.30 -146.83 0.26 0.73 2.00 19.2
20250729 09:53:26 GMI 37GHz 35.0 12.25 -147.13 12.25 -146.93 0.39 1.11 1.40 ***
20250729 06:30:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20250729 02:04:09 * SSMIS-18 85-92GHz 35.0 12.38 -145.49 12.42 -145.64 0.28 0.80 0.20 27.2
20250728 19:21:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20250728 18:30:00 * Metop-A ASCAT 35.0 12.16 -143.95 12.15 -143.88 0.22 0.61 *** ***
20250728 16:39:40 SSMIS-16 85-92GHz 33.9 12.45 -144.18 12.45 -144.38 0.45 1.27 1.90 0.7
20250728 13:13:36 * SSMIS-18 85-92GHz 31.0 12.40 -143.50 12.40 -143.28 0.41 1.15 2.10 1.4
20250728 11:32:29 * AMSR2 85-92GHz 30.0 12.30 -143.19 12.30 -143.27 0.34 0.96 1.40 4.6
20250728 11:32:29 AMSR2 37GHz 30.0 11.80 -142.93 11.80 -143.01 0.57 1.61 0.30 ***

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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