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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
20260328 09:49:12 SSMIS-17 85-92GHz 31.2 *** *** *** *** *** *** 3.00 ***
20260328 06:12:35 AMSR2 85-92GHz 33.2 *** *** *** *** *** *** 1.80 ***
20260328 06:12:35 * AMSR2 37GHz 33.2 -32.12 119.67 -31.85 119.47 0.43 1.22 0.20 ***
20260327 21:22:43 SSMIS-17 85-92GHz 37.2 *** *** *** *** *** *** 1.20 ***
20260327 10:06:09 * SSMIS-17 85-92GHz 69.0 -24.62 115.25 -24.96 115.25 0.12 0.34 3.00 0.0
20260327 09:15:01 SSMIS-18 85-92GHz 70.7 -24.59 114.59 -24.41 114.59 0.15 0.41 0.30 62.5
20260326 21:36:04 * SSMIS-17 85-92GHz 95.0 -21.84 113.91 -21.62 113.93 0.11 0.31 0.80 98.1
20260326 20:45:14 SSMIS-18 85-92GHz 96.8 *** *** *** *** *** *** 1.70 ***
20260326 17:22:54 * AMSR2 85-92GHz 103.8 -20.98 114.17 -21.00 114.16 0.10 0.28 0.70 100.0
20260326 17:22:54 AMSR2 37GHz 103.8 -20.98 114.11 -21.00 114.11 0.10 0.29 0.50 ***
20260326 13:39:00 Metop-C ASCAT 111.6 -20.46 114.49 -20.60 114.46 0.31 0.87 *** ***
20260326 13:03:00 Metop-A ASCAT 112.8 -20.41 114.56 -20.65 114.52 0.32 0.90 *** ***
20260326 10:21:50 * SSMIS-17 85-92GHz 113.6 -20.15 114.88 -20.32 114.78 0.09 0.26 0.70 100.0
20260326 06:28:31 * AMSR2 85-92GHz 110.0 -19.62 115.35 -19.50 115.49 0.09 0.25 0.80 100.0
20260326 06:28:31 AMSR2 37GHz 110.0 -19.57 115.40 -19.45 115.54 0.10 0.28 0.50 ***
20260326 01:09:00 * Metop-C ASCAT 105.0 -18.95 116.20 -19.10 115.99 0.19 0.54 *** ***
20260326 00:36:00 * Metop-A ASCAT 105.0 -18.97 116.22 -18.85 116.38 0.19 0.53 *** ***
20260325 14:00:00 Metop-C ASCAT 95.0 *** *** *** *** *** *** *** ***
20260325 13:24:00 Metop-A ASCAT 93.5 *** *** *** *** *** *** *** ***
20260325 11:10:44 * SSMIS-16 85-92GHz 87.3 -18.08 118.10 -18.09 118.05 0.12 0.34 1.30 79.7
20260325 10:36:37 SSMIS-17 85-92GHz 85.4 -17.87 118.15 -17.88 118.00 0.13 0.37 0.50 74.7
20260325 08:04:48 SSMIS-18 85-92GHz 76.9 -18.04 118.73 -18.04 118.64 0.17 0.49 0.80 56.8
20260325 05:45:53 AMSR2 85-92GHz 69.4 -17.73 119.04 -17.72 119.08 0.18 0.50 1.00 74.7
20260325 05:45:53 * AMSR2 37GHz 69.4 -17.68 119.14 -17.67 119.19 0.13 0.38 0.50 ***
20260325 01:30:00 Metop-C ASCAT 58.8 *** *** *** *** *** *** *** ***
20260324 22:37:35 SSMIS-16 85-92GHz 53.9 -17.11 120.63 -17.17 120.42 0.49 1.40 1.10 7.6
20260324 22:01:55 * SSMIS-17 85-92GHz 53.4 -17.07 120.63 -17.17 120.26 0.15 0.43 1.10 81.7
20260324 19:30:44 SSMIS-18 85-92GHz 51.3 -17.01 121.21 -17.08 120.95 0.29 0.82 0.90 36.9
20260324 17:33:43 AMSR2 85-92GHz 49.6 -16.91 121.57 -16.91 121.59 0.41 1.17 0.90 12.5
20260324 17:33:43 * AMSR2 37GHz 49.6 -17.01 121.57 -17.01 121.59 0.22 0.61 0.60 ***
20260324 11:24:39 SSMIS-16 85-92GHz 44.5 -16.61 122.03 -16.62 122.02 0.53 1.51 1.10 2.1
20260324 08:18:21 * SSMIS-18 85-92GHz 41.9 -16.43 122.89 -16.45 122.86 0.27 0.77 1.50 20.1
20260324 05:03:16 * AMSR2 85-92GHz 39.2 -15.76 124.02 -15.78 123.93 0.60 1.69 1.30 1.5
20260324 05:03:16 AMSR2 37GHz 39.2 *** *** *** *** *** *** 1.50 ***
20260323 22:50:17 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 1.70 ***
20260323 19:44:31 * SSMIS-18 85-92GHz 35.0 -15.72 125.56 -15.76 125.44 0.53 1.51 1.20 1.1
20260323 16:50:20 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 1.80 ***
20260323 16:50:20 AMSR2 37GHz 35.0 *** *** *** *** *** *** 1.80 ***
20260323 12:27:00 Metop-A ASCAT 35.0 -14.98 124.84 -14.93 125.02 3.36 9.49 *** ***
20260323 09:24:56 * SSMIS-17 85-92GHz 37.5 -15.43 126.92 -15.39 127.09 0.27 0.76 3.00 0.0
20260322 23:57:00 * Metop-A ASCAT 46.5 -14.58 128.54 -14.57 128.64 0.29 0.82 *** ***
20260322 20:49:42 SSMIS-17 85-92GHz 49.4 *** *** *** *** *** *** 1.10 ***
20260322 12:48:00 Metop-A ASCAT 57.1 *** *** *** *** *** *** *** ***
20260322 10:10:53 * SSMIS-16 85-92GHz 59.6 -14.14 132.10 -14.18 131.80 0.39 1.10 1.10 17.1
20260322 07:06:59 * SSMIS-18 85-92GHz 62.5 -13.85 132.65 -13.89 132.35 0.27 0.77 1.10 32.1
20260322 05:15:55 AMSR2 85-92GHz 64.3 -13.84 133.00 -13.85 132.95 0.42 1.18 3.00 0.0
20260322 05:15:55 * AMSR2 37GHz 64.3 -13.79 133.31 -13.80 133.25 0.24 0.67 2.80 ***
20260322 00:15:00 Metop-A ASCAT 69.0 -14.00 135.59 -13.97 135.74 0.23 0.66 *** ***
20260321 21:36:43 * SSMIS-16 85-92GHz 71.6 -13.58 134.83 -13.53 135.06 0.16 0.46 1.00 31.3
20260321 18:31:09 * SSMIS-18 85-92GHz 74.4 -13.38 135.24 -13.32 135.44 0.20 0.58 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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