-- 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
20250322 15:03:00 * Metop-A ASCAT 30.0 -14.80 98.43 -14.83 98.43 0.25 0.72 *** ***
20250322 12:02:36 SSMIS-17 85-92GHz 30.0 *** *** *** *** *** *** 2.10 ***
20250322 10:09:01 * SSMIS-18 85-92GHz 30.0 -15.22 97.76 -15.17 97.76 0.41 1.15 1.20 0.6
20250322 07:25:11 AMSR2 85-92GHz 30.0 -15.66 98.17 -15.63 98.17 0.44 1.25 1.20 0.9
20250322 07:25:11 AMSR2 37GHz 30.0 -15.51 98.28 -15.48 98.28 0.46 1.30 0.40 ***
20250322 06:13:27 * GMI 85-92GHz 30.0 -15.64 98.12 -15.66 98.12 0.40 1.14 1.10 1.2
20250322 06:13:27 GMI 37GHz 30.0 -15.54 97.66 -15.56 97.66 0.41 1.16 2.00 ***
20250322 03:24:00 Metop-C ASCAT 30.0 *** *** *** *** *** *** *** ***
20250321 23:27:32 SSMIS-17 85-92GHz 30.0 -15.15 97.89 -15.14 97.89 0.30 0.84 1.80 1.7
20250321 21:33:44 * SSMIS-18 85-92GHz 30.0 -15.08 97.80 -15.09 97.77 0.24 0.67 2.70 7.1
20250321 19:12:03 AMSR2 85-92GHz 30.0 -15.05 97.43 -15.04 97.46 0.43 1.20 0.80 3.5
20250321 19:12:03 AMSR2 37GHz 30.0 -15.30 97.59 -15.29 97.62 0.32 0.89 0.50 ***
20250321 15:24:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20250321 14:36:00 * Metop-C ASCAT 30.0 -15.52 97.81 -15.52 97.81 0.15 0.44 *** ***
20250321 12:16:46 SSMIS-17 85-92GHz 30.0 *** *** *** *** *** *** 2.10 ***
20250321 06:53:27 GMI 85-92GHz 30.0 -15.13 96.84 -15.08 96.78 0.24 0.69 2.10 5.4
20250321 06:53:27 * GMI 37GHz 30.0 -15.18 96.74 -15.13 96.67 0.17 0.47 1.00 ***
20250320 23:41:34 SSMIS-17 85-92GHz 33.5 *** *** *** *** *** *** 2.70 ***
20250320 21:47:26 * SSMIS-18 85-92GHz 34.6 -14.46 96.43 -14.37 96.38 0.56 1.59 0.20 0.2
20250320 14:57:00 * Metop-C ASCAT 36.3 -14.18 96.15 -14.12 96.10 0.15 0.44 *** ***
20250320 11:47:25 * SSMIS-16 85-92GHz 37.6 -13.74 96.12 -13.70 96.08 0.33 0.95 2.70 1.4
20250320 03:15:00 * Metop-A ASCAT 41.1 -13.27 94.88 -13.26 94.86 0.20 0.56 *** ***
20250319 23:55:13 * SSMIS-17 85-92GHz 42.5 -12.70 93.96 -12.70 93.94 0.22 0.63 2.70 2.5
20250319 20:03:26 * GMI 85-92GHz 44.1 -12.91 94.04 -12.91 94.05 0.19 0.53 1.50 8.9
20250319 20:03:26 GMI 37GHz 44.1 -13.16 94.55 -13.16 94.56 0.23 0.65 0.80 ***
20250319 19:23:40 * AMSR2 85-92GHz 45.0 -12.89 94.00 -12.89 94.01 0.19 0.53 0.20 78.2
20250319 19:23:40 AMSR2 37GHz 45.0 -12.94 94.82 -12.94 94.83 0.51 1.43 0.20 ***
20250319 14:24:00 * Metop-A ASCAT 45.0 -13.19 95.17 -13.18 95.17 0.15 0.43 *** ***
20250319 12:01:10 SSMIS-16 85-92GHz 45.0 -13.60 94.90 -13.62 94.95 0.35 0.98 2.30 8.7
20250319 06:55:09 * AMSR2 85-92GHz 45.0 -12.83 95.10 -12.84 95.19 0.27 0.77 0.20 72.0
20250319 06:55:09 AMSR2 37GHz 45.0 -13.48 95.30 -13.49 95.40 0.29 0.83 1.60 ***
20250319 02:48:00 Metop-C ASCAT 42.3 *** *** *** *** *** *** *** ***
20250318 23:24:42 * SSMIS-16 85-92GHz 39.5 -12.52 95.97 -12.52 95.96 0.17 0.47 2.30 25.3
20250318 18:40:39 * AMSR2 85-92GHz 35.0 -12.27 95.81 -12.17 95.86 0.25 0.71 3.00 7.7
20250318 18:40:39 AMSR2 37GHz 35.0 -12.37 95.97 -12.27 96.01 0.38 1.07 0.20 ***

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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