-- 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
20251216 18:25:31 * SSMIS-17 85-92GHz 30.0 -14.24 173.86 -14.26 173.79 0.38 1.08 0.80 1.9
20251216 09:48:00 * Metop-C ASCAT 34.6 -14.58 172.16 -14.61 172.04 0.21 0.59 *** ***
20251216 09:06:00 Metop-A ASCAT 34.9 -14.65 172.41 -14.66 172.35 0.27 0.75 *** ***
20251215 21:15:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20251215 18:39:58 * SSMIS-17 85-92GHz 35.0 -15.00 171.30 -14.94 171.24 0.37 1.05 3.00 0.0
20251215 13:44:12 AMSR2 85-92GHz 38.6 -14.87 171.54 -14.93 171.62 0.53 1.51 1.80 1.3
20251215 13:44:12 * AMSR2 37GHz 38.6 -14.97 171.28 -15.03 171.37 0.27 0.75 1.40 ***
20251215 09:27:00 Metop-A ASCAT 40.3 -14.72 170.34 -14.69 170.23 0.24 0.69 *** ***
20251215 09:07:26 * GMI 85-92GHz 40.1 -14.31 171.38 -14.29 171.31 0.14 0.39 2.80 -11.0
20251215 09:07:26 GMI 37GHz 40.1 -14.51 170.97 -14.49 170.89 0.31 0.86 1.70 ***
20251214 20:54:00 Metop-A ASCAT 37.6 *** *** *** *** *** *** *** ***
20251214 16:08:27 SSMIS-18 85-92GHz 40.0 *** *** *** *** *** *** 1.90 ***
20250112 16:16:27 * SSMIS-16 85-92GHz 35.0 -21.85 -159.50 -21.85 -159.50 0.38 1.07 2.60 0.3
20250112 15:50:49 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20250112 13:40:07 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20250112 07:54:00 * Metop-C ASCAT 35.0 -22.45 -156.91 -22.45 -156.91 0.28 0.79 *** ***
20250112 05:01:30 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 2.20 ***
20250112 04:36:16 SSMIS-17 85-92GHz 35.0 -22.15 -158.85 -22.15 -158.85 0.43 1.20 2.00 2.0
20250112 02:25:22 * SSMIS-18 85-92GHz 35.0 -22.15 -158.26 -22.15 -158.26 0.43 1.21 1.60 1.0
20250111 20:12:00 * Metop-A ASCAT 35.0 -21.85 -160.10 -21.85 -159.96 0.21 0.60 *** ***
20250111 19:27:00 Metop-C ASCAT 35.0 -21.65 -160.31 -21.65 -160.65 0.21 0.60 *** ***
20250111 16:30:24 SSMIS-16 85-92GHz 35.0 -22.05 -159.83 -22.05 -159.41 0.17 0.48 2.80 -0.3
20250111 16:05:07 * SSMIS-17 85-92GHz 35.0 -22.00 -160.01 -22.00 -160.34 0.13 0.36 2.60 2.6
20250111 13:54:10 SSMIS-18 85-92GHz 35.0 -22.00 -160.90 -22.00 -160.55 0.38 1.09 2.60 -0.7
20250111 12:21:46 * AMSR2 85-92GHz 35.0 -21.88 -161.60 -21.88 -161.72 0.22 0.63 2.40 0.3
20250111 12:21:46 AMSR2 37GHz 35.0 -21.63 -161.23 -21.63 -161.34 0.33 0.94 0.60 ***
20250111 08:15:00 Metop-C ASCAT 38.1 -20.78 -164.31 -20.86 -163.95 0.93 2.62 *** ***
20250111 05:15:41 * SSMIS-16 85-92GHz 40.0 -21.44 -164.09 -21.55 -163.72 0.13 0.36 2.80 12.5
20250111 01:27:29 AMSR2 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***
20250111 01:27:29 AMSR2 37GHz 40.0 *** *** *** *** *** *** 3.00 ***

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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