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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
20260603 19:15:58 * SSMIS-18 85-92GHz 49.5 36.64 145.30 36.67 145.60 0.61 1.73 0.30 0.2
20260603 15:46:21 AMSR2 85-92GHz 50.0 36.19 145.13 36.03 144.71 0.48 1.36 2.80 2.2
20260603 15:46:21 * AMSR2 37GHz 50.0 35.94 144.45 35.78 144.02 0.46 1.29 2.90 ***
20260603 11:42:00 * Metop-C ASCAT 50.0 36.21 143.87 36.18 143.79 0.24 0.68 *** ***
20260603 11:15:00 * Metop-A ASCAT 50.0 35.95 143.33 35.98 143.42 0.29 0.81 *** ***
20260603 07:35:37 * SSMIS-17 85-92GHz 50.0 35.61 141.95 35.70 142.26 0.35 0.99 2.50 5.5
20260603 06:52:04 SSMIS-18 85-92GHz 50.0 35.54 140.84 35.40 140.25 0.40 1.13 3.00 4.0
20260603 03:44:18 * AMSR2 85-92GHz 50.0 34.65 140.20 34.51 139.39 0.37 1.04 0.80 7.9
20260603 03:44:18 AMSR2 37GHz 50.0 34.90 139.72 34.76 138.91 0.39 1.11 0.50 ***
20260602 23:57:00 Metop-A ASCAT 50.0 *** *** *** *** *** *** *** ***
20260602 19:30:48 * SSMIS-18 85-92GHz 50.0 33.35 135.81 33.51 136.25 0.36 1.01 0.70 7.1
20260602 16:42:46 * AMSR2 85-92GHz 50.0 32.43 134.20 32.56 134.46 0.30 0.85 3.00 0.0
20260602 16:42:46 AMSR2 37GHz 50.0 *** *** *** *** *** *** 0.50 ***
20260602 12:06:00 Metop-C ASCAT 50.0 *** *** *** *** *** *** *** ***
20260602 07:05:11 * SSMIS-18 85-92GHz 50.0 30.58 130.60 30.95 131.18 0.29 0.83 2.80 8.4
20260602 04:38:27 AMSR2 85-92GHz 50.0 29.96 130.31 30.20 130.65 0.46 1.31 3.00 1.8
20260602 04:38:27 * AMSR2 37GHz 50.0 30.31 129.90 30.55 130.24 0.22 0.62 2.00 ***
20260602 00:48:00 * Metop-C ASCAT 50.0 29.48 129.00 29.18 128.64 0.15 0.42 *** ***
20260602 00:18:00 Metop-A ASCAT 50.0 29.37 128.81 29.18 128.59 0.16 0.46 *** ***
20260601 22:11:04 SSMIS-17 85-92GHz 51.5 28.62 128.36 28.90 128.72 0.43 1.22 2.70 1.3
20260601 19:46:57 SSMIS-18 85-92GHz 53.5 28.65 128.09 28.79 128.22 0.27 0.78 2.10 3.1
20260601 17:39:33 AMSR2 85-92GHz 55.0 28.03 127.64 28.00 127.64 0.41 1.17 2.60 3.3
20260601 17:39:33 * AMSR2 37GHz 55.0 27.98 127.47 27.95 127.47 0.16 0.46 1.20 ***
20260601 12:24:00 Metop-C ASCAT 55.0 26.83 127.25 26.66 127.25 0.15 0.42 *** ***
20260601 11:54:00 * Metop-A ASCAT 55.1 26.78 127.11 26.70 127.10 0.13 0.38 *** ***
20260601 07:17:55 * SSMIS-18 85-92GHz 58.9 25.84 127.64 26.05 127.67 0.27 0.76 1.50 16.3
20260531 20:02:19 * SSMIS-18 85-92GHz 68.3 23.89 127.08 23.96 127.07 0.16 0.45 2.30 45.2
20260531 16:57:47 AMSR2 85-92GHz 70.9 23.45 127.37 23.53 127.34 0.14 0.39 2.10 75.9
20260531 16:57:47 * AMSR2 37GHz 70.9 23.35 127.26 23.43 127.23 0.08 0.24 1.50 ***
20260531 07:31:51 * SSMIS-18 85-92GHz 71.3 22.05 127.92 22.22 127.91 0.12 0.35 1.40 85.1
20260531 04:48:26 AMSR2 85-92GHz 70.0 21.70 127.92 21.81 127.90 0.15 0.42 1.60 73.1
20260531 04:48:26 * AMSR2 37GHz 70.0 21.85 127.82 21.96 127.79 0.09 0.27 1.30 ***
20260531 01:30:00 * Metop-C ASCAT 70.0 21.15 127.89 21.30 127.83 0.15 0.41 *** ***
20260531 01:03:00 Metop-A ASCAT 70.0 21.09 127.90 21.30 127.82 0.16 0.45 *** ***
20260530 20:17:28 * SSMIS-18 85-92GHz 66.9 20.51 128.33 20.53 128.31 0.16 0.46 1.90 72.5
20260530 20:13:45 SSMIS-18 85-92GHz 66.9 *** *** *** *** *** *** 1.80 ***
20260530 12:33:00 * Metop-A ASCAT 65.0 19.08 128.80 18.92 128.90 0.16 0.45 *** ***
20260530 07:44:25 * SSMIS-18 85-92GHz 65.0 18.48 129.11 18.61 129.03 0.13 0.36 2.00 98.0
20260529 21:16:24 * SSMIS-17 85-92GHz 52.7 17.28 130.66 17.17 130.75 0.50 1.41 2.40 3.5
20260529 17:11:46 AMSR2 85-92GHz 49.3 16.51 130.91 16.53 130.87 0.26 0.75 2.70 34.8
20260529 17:11:46 * AMSR2 37GHz 49.3 16.71 131.02 16.73 130.98 0.09 0.25 1.40 ***
20260529 08:42:14 * SSMIS-17 85-92GHz 42.3 16.12 131.89 16.09 131.92 0.32 0.89 2.80 17.1
20260529 04:59:13 AMSR2 85-92GHz 40.0 15.92 132.27 15.97 132.19 0.49 1.37 2.50 6.4
20260529 04:59:13 * AMSR2 37GHz 40.0 15.97 133.10 16.02 133.02 0.36 1.02 0.70 ***
20260529 00:36:00 Metop-C ASCAT 40.0 *** *** *** *** *** *** *** ***
20260528 22:38:27 * SSMIS-16 85-92GHz 40.0 15.25 133.60 15.34 133.50 0.35 1.00 2.00 8.9
20260528 21:31:01 SSMIS-17 85-92GHz 40.6 15.45 133.83 15.33 133.94 0.44 1.24 2.10 5.4
20260528 19:06:16 SSMIS-18 85-92GHz 40.0 15.57 134.30 15.74 134.14 0.47 1.33 1.80 2.6
20260528 16:29:27 * AMSR2 85-92GHz 38.7 15.20 134.73 15.34 134.54 0.34 0.95 2.80 11.3
20260528 16:29:27 AMSR2 37GHz 38.7 14.65 134.88 14.79 134.69 0.61 1.74 1.40 ***
20260528 12:03:00 * Metop-C ASCAT 35.0 14.01 134.98 13.93 135.03 0.19 0.54 *** ***
20260528 11:33:00 Metop-A ASCAT 34.6 14.10 134.82 14.09 134.82 0.21 0.60 *** ***
20260528 10:02:45 SSMIS-16 85-92GHz 33.4 *** *** *** *** *** *** 1.80 ***
20260528 06:30:56 * SSMIS-18 85-92GHz 30.0 13.04 136.56 12.96 136.56 0.32 0.89 3.00 0.0
20260528 04:15:33 * AMSR2 85-92GHz 30.0 13.06 135.90 13.12 135.90 0.40 1.12 2.30 7.3
20260528 04:15:33 AMSR2 37GHz 30.0 12.91 136.11 12.97 136.11 0.58 1.64 0.40 ***
20260527 19:21:35 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 2.00 ***
20260527 12:24:00 Metop-C ASCAT 25.0 *** *** *** *** *** *** *** ***
20260527 06:44:12 * SSMIS-18 85-92GHz 25.0 9.27 138.31 9.17 138.36 0.44 1.24 2.20 1.5

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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