-- 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
20250722 22:51:09 * SSMIS-17 85-92GHz 26.0 20.36 104.82 20.38 104.74 0.53 1.51 0.20 0.3
20250722 21:22:54 SSMIS-18 85-92GHz 27.2 20.08 104.59 20.07 104.70 0.58 1.63 2.30 0.1
20250722 19:33:27 GMI 85-92GHz 28.7 *** *** *** *** *** *** 0.90 ***
20250722 19:33:27 * GMI 37GHz 28.7 19.91 104.28 19.92 104.17 0.38 1.07 0.20 ***
20250722 18:43:01 AMSR2 85-92GHz 29.4 20.25 104.81 20.25 104.96 0.58 1.64 0.20 0.3
20250722 18:43:01 AMSR2 37GHz 29.4 *** *** *** *** *** *** 0.10 ***
20250722 14:00:00 Metop-C ASCAT 32.2 *** *** *** *** *** *** *** ***
20250722 13:09:00 Metop-A ASCAT 32.7 *** *** *** *** *** *** *** ***
20250722 10:19:02 * SSMIS-17 85-92GHz 34.3 20.65 105.87 20.65 105.74 0.22 0.63 2.30 6.5
20250722 08:50:50 SSMIS-18 85-92GHz 35.0 20.50 105.81 20.50 105.84 0.25 0.72 2.80 9.5
20250722 06:32:27 AMSR2 85-92GHz 35.0 20.50 106.41 20.50 106.52 0.37 1.04 2.40 4.2
20250722 06:32:27 AMSR2 37GHz 35.0 *** *** *** *** *** *** 1.00 ***
20250722 06:08:27 * GMI 85-92GHz 35.0 20.45 106.29 20.45 106.36 0.36 1.03 2.00 3.4
20250722 06:08:27 GMI 37GHz 35.0 *** *** *** *** *** *** 1.30 ***
20250722 02:51:00 Metop-C ASCAT 40.2 *** *** *** *** *** *** *** ***
20250722 02:00:00 Metop-A ASCAT 41.7 *** *** *** *** *** *** *** ***
20250721 14:21:00 * Metop-C ASCAT 50.0 20.37 107.48 20.36 107.46 0.25 0.69 *** ***
20250721 10:47:54 * SSMIS-16 85-92GHz 49.0 21.14 108.33 21.11 108.24 0.28 0.78 0.30 32.5
20250721 09:05:14 SSMIS-18 85-92GHz 47.6 *** *** *** *** *** *** 1.90 ***
20250721 06:48:26 GMI 85-92GHz 45.0 *** *** *** *** *** *** 3.00 ***
20250721 06:48:26 GMI 37GHz 45.0 *** *** *** *** *** *** 3.00 ***
20250721 05:49:49 * AMSR2 85-92GHz 45.0 21.26 108.85 21.27 108.88 0.18 0.52 1.00 85.2
20250721 05:49:49 AMSR2 37GHz 45.0 21.16 109.12 21.17 109.15 0.19 0.54 0.50 ***
20250720 23:19:01 * SSMIS-17 85-92GHz 45.6 21.66 109.36 21.66 109.34 0.51 1.44 2.00 3.3
20250720 13:54:00 Metop-A ASCAT 56.8 21.47 109.55 21.46 109.47 3.36 9.49 *** ***
20250720 11:01:39 * SSMIS-16 85-92GHz 60.8 21.99 112.34 21.97 112.24 0.24 0.69 0.90 56.2
20250720 10:47:42 * SSMIS-17 85-92GHz 61.0 22.10 112.39 22.07 112.24 0.24 0.68 0.90 51.5
20250720 01:00:00 Metop-A ASCAT 65.0 *** *** *** *** *** *** *** ***
20250719 20:23:29 SSMIS-18 85-92GHz 59.0 21.71 115.31 21.71 115.29 0.16 0.46 1.20 82.8
20250719 20:03:27 GMI 85-92GHz 58.4 21.65 115.39 21.66 115.29 0.19 0.55 1.10 67.1
20250719 20:03:27 * GMI 37GHz 58.4 21.55 115.66 21.56 115.56 0.11 0.32 0.50 ***
20250719 18:11:40 AMSR2 85-92GHz 55.0 21.56 115.89 21.54 116.07 0.26 0.73 1.10 53.9
20250719 18:11:40 * AMSR2 37GHz 55.0 21.51 116.11 21.49 116.29 0.13 0.37 0.70 ***
20250719 12:33:00 * Metop-A ASCAT 50.0 21.02 117.59 20.93 117.84 0.14 0.39 *** ***
20250719 07:51:26 SSMIS-18 85-92GHz 50.0 20.52 118.33 20.58 118.20 0.19 0.55 1.20 59.4
20250719 06:38:27 GMI 85-92GHz 50.0 20.69 118.52 20.61 118.71 0.18 0.51 1.60 71.0
20250719 06:38:27 * GMI 37GHz 50.0 20.74 118.73 20.66 118.92 0.14 0.39 1.10 ***
20250719 02:12:00 * Metop-C ASCAT 50.0 20.44 119.53 20.46 119.49 0.15 0.44 *** ***
20250718 22:06:34 * SSMIS-17 85-92GHz 48.4 20.55 120.64 20.62 120.43 0.24 0.67 2.90 64.0

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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