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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
20260321 18:31:09 * SSMIS-18 85-92GHz 72.2 -13.36 135.24 -13.33 135.45 0.18 0.49 3.00 0.0
20260321 11:27:00 * Metop-A ASCAT 80.0 -13.19 137.21 -13.19 137.20 0.15 0.41 *** ***
20260321 07:21:20 * SSMIS-18 85-92GHz 80.0 -13.09 137.58 -13.11 137.39 0.12 0.33 0.90 100.0
20260321 04:32:59 * AMSR2 85-92GHz 77.6 -12.92 138.10 -12.94 137.94 0.11 0.31 0.70 100.0
20260321 04:32:59 AMSR2 37GHz 77.6 -13.02 138.10 -13.04 137.94 0.12 0.34 0.50 ***
20260320 23:30:00 * Metop-C ASCAT 69.6 -12.96 139.18 -12.96 139.18 0.13 0.37 *** ***
20260320 22:57:00 Metop-A ASCAT 69.1 *** *** *** *** *** *** *** ***
20260320 22:54:00 Metop-A ASCAT 69.1 *** *** *** *** *** *** *** ***
20260320 18:44:59 * SSMIS-18 85-92GHz 65.0 -12.80 139.47 -12.85 139.67 0.14 0.39 1.00 90.3
20260320 16:18:34 * AMSR2 85-92GHz 70.6 -12.97 140.07 -12.94 139.85 0.15 0.42 1.40 67.8
20260320 16:18:34 AMSR2 37GHz 70.6 -12.92 140.18 -12.89 139.96 0.18 0.51 0.40 ***
20260320 03:49:52 * AMSR2 85-92GHz 101.8 -13.10 142.05 -13.10 142.27 0.12 0.35 2.80 43.6
20260320 03:49:52 AMSR2 37GHz 101.8 -13.25 142.62 -13.25 142.84 0.14 0.40 2.50 ***
20260319 19:50:55 * SSMIS-17 85-92GHz 115.4 -13.46 143.82 -13.40 143.71 0.10 0.29 0.40 100.0
20260319 15:35:41 * AMSR2 85-92GHz 122.0 -13.58 144.70 -13.53 144.97 0.09 0.25 0.50 100.0
20260319 15:35:41 AMSR2 37GHz 122.0 -13.58 144.59 -13.53 144.87 0.11 0.32 0.60 ***
20260319 08:41:23 * SSMIS-17 85-92GHz 125.0 -13.60 146.16 -13.60 146.19 0.11 0.31 0.30 100.0
20260319 06:08:15 * SSMIS-18 85-92GHz 125.0 -13.55 146.42 -13.55 146.55 0.13 0.37 0.30 100.0
20260318 20:36:34 * SSMIS-16 85-92GHz 107.9 -13.37 148.71 -13.36 148.74 0.10 0.27 0.30 100.0
20260318 20:04:52 * SSMIS-17 85-92GHz 106.8 -13.39 148.83 -13.41 148.74 0.12 0.33 0.30 100.0
20260318 10:51:00 Metop-A ASCAT 87.6 *** *** *** *** *** *** *** ***
20260318 06:22:36 * SSMIS-18 85-92GHz 78.3 -12.72 151.77 -12.66 151.97 0.09 0.27 0.40 100.0
20260317 22:18:00 * Metop-A ASCAT 64.3 -12.35 153.67 -12.35 153.44 0.15 0.41 *** ***
20260317 17:45:45 * SSMIS-18 85-92GHz 62.4 -12.05 154.11 -12.05 154.16 0.11 0.30 0.40 100.0
20260317 11:09:00 * Metop-A ASCAT 58.6 -12.40 155.42 -12.40 155.37 0.18 0.50 *** ***
20260317 03:19:01 * AMSR2 85-92GHz 45.5 -12.65 156.68 -12.64 156.76 0.13 0.36 0.40 98.3
20260317 03:19:01 AMSR2 37GHz 45.5 -12.65 156.68 -12.64 156.76 0.17 0.49 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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