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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
20251026 06:33:00 * Metop-C ASCAT 30.0 -7.38 47.11 -7.42 47.27 0.25 0.71 *** ***
20251026 05:48:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20251026 00:34:04 SSMIS-18 85-92GHz 30.0 *** *** *** *** *** *** 1.70 ***
20251025 18:38:26 GMI 85-92GHz 30.0 *** *** *** *** *** *** 1.40 ***
20251025 18:38:26 * GMI 37GHz 30.0 -8.34 50.12 -8.35 50.27 0.23 0.65 3.00 ***
20251025 17:06:00 Metop-A ASCAT 30.4 *** *** *** *** *** *** *** ***
20251025 15:40:19 SSMIS-16 85-92GHz 31.0 *** *** *** *** *** *** 1.70 ***
20251025 14:39:26 SSMIS-17 85-92GHz 31.4 -8.39 50.38 -8.39 50.40 0.50 1.40 1.80 0.5
20251025 10:38:22 * AMSR2 85-92GHz 33.1 -8.05 49.74 -8.08 49.63 0.19 0.55 2.50 3.3
20251025 10:38:22 AMSR2 37GHz 33.1 -8.00 50.85 -8.03 50.74 0.23 0.64 0.40 ***
20251025 02:00:14 * SSMIS-17 85-92GHz 35.0 -7.27 52.11 -7.22 52.02 0.31 0.87 3.00 0.0
20251025 00:47:59 SSMIS-18 85-92GHz 35.0 -8.14 51.92 -8.29 52.16 0.50 1.40 3.00 0.2
20251024 22:21:04 AMSR2 85-92GHz 35.0 -8.64 52.97 -8.51 52.76 0.54 1.53 1.80 2.3
20251024 22:21:04 * AMSR2 37GHz 35.0 -8.74 52.92 -8.61 52.71 0.24 0.67 2.00 ***
20251024 18:12:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20251024 14:53:10 SSMIS-17 85-92GHz 36.3 -8.87 54.13 -8.88 54.19 0.53 1.50 2.30 1.4
20251024 11:59:41 SSMIS-18 85-92GHz 37.5 -8.85 54.85 -8.87 54.94 0.49 1.39 3.00 0.0
20251024 09:54:51 AMSR2 85-92GHz 38.4 -9.21 54.81 -9.26 55.04 0.43 1.22 2.40 0.9
20251024 09:54:51 * AMSR2 37GHz 38.4 -9.41 54.45 -9.46 54.69 0.27 0.77 1.30 ***
20251024 07:48:27 GMI 85-92GHz 40.0 *** *** *** *** *** *** 0.60 ***
20251024 07:48:27 GMI 37GHz 40.0 -9.28 55.34 -9.25 55.23 0.47 1.34 1.40 ***
20251024 04:48:00 * Metop-A ASCAT 40.0 -9.23 55.82 -9.20 55.69 0.17 0.48 *** ***
20251024 03:14:55 SSMIS-16 85-92GHz 40.0 -9.35 54.80 -9.41 54.95 0.55 1.56 0.80 2.4
20251024 02:14:29 SSMIS-17 85-92GHz 40.0 -9.68 55.15 -9.66 55.10 0.29 0.81 0.80 5.4
20251023 21:38:08 AMSR2 85-92GHz 40.0 -9.67 57.34 -9.74 57.56 0.29 0.81 2.50 17.1
20251023 21:38:08 * AMSR2 37GHz 40.0 -9.82 57.24 -9.89 57.46 0.26 0.74 1.50 ***
20251023 17:45:00 * Metop-A ASCAT 40.0 -10.01 57.94 -10.01 57.98 0.12 0.35 *** ***
20251023 12:13:07 * SSMIS-18 85-92GHz 40.0 -10.32 58.79 -10.33 58.89 0.26 0.74 2.70 5.8
20251023 05:57:00 * Metop-C ASCAT 40.1 -10.50 59.40 -10.51 59.45 0.16 0.44 *** ***
20251023 05:12:00 Metop-A ASCAT 41.0 -10.20 59.59 -10.20 59.56 0.17 0.47 *** ***
20251023 05:09:00 Metop-A ASCAT 41.1 -10.20 59.60 -10.20 59.56 0.17 0.47 *** ***
20251023 02:29:05 SSMIS-17 85-92GHz 44.4 *** *** *** *** *** *** 3.00 ***
20251022 23:35:34 * SSMIS-18 85-92GHz 48.0 -10.09 59.24 -10.09 59.25 0.15 0.42 0.30 91.2
20251022 19:13:26 * GMI 85-92GHz 53.5 -10.13 59.93 -10.12 59.81 0.24 0.67 0.40 52.7
20251022 19:13:26 GMI 37GHz 53.5 -10.28 60.64 -10.27 60.53 0.31 0.86 1.30 ***
20251022 17:12:00 * Metop-C ASCAT 55.3 -10.15 60.96 -10.15 60.93 0.13 0.37 *** ***
20251022 16:24:00 Metop-A ASCAT 55.7 *** *** *** *** *** *** *** ***
20251022 14:39:25 SSMIS-16 85-92GHz 56.4 -10.62 61.39 -10.62 61.41 0.40 1.12 3.00 1.5
20251022 13:39:47 SSMIS-17 85-92GHz 56.8 -10.53 60.55 -10.52 60.45 0.46 1.29 0.70 4.8
20251022 12:27:10 SSMIS-18 85-92GHz 57.3 -10.19 60.81 -10.20 60.94 0.63 1.77 0.70 0.2
20251022 07:38:26 GMI 85-92GHz 60.0 -10.21 61.62 -10.20 61.49 0.59 1.65 1.70 1.0
20251022 07:38:26 * GMI 37GHz 60.0 -9.76 61.37 -9.75 61.24 0.18 0.51 0.20 ***
20251022 04:39:00 Metop-C ASCAT 60.0 *** *** *** *** *** *** *** ***
20251022 04:36:00 Metop-C ASCAT 60.0 *** *** *** *** *** *** *** ***
20251022 02:01:25 SSMIS-16 85-92GHz 60.0 -9.61 62.43 -9.63 62.34 0.28 0.80 0.90 36.4
20251021 23:49:15 * SSMIS-18 85-92GHz 60.0 -9.68 62.61 -9.66 62.67 0.14 0.39 0.70 71.4
20251021 14:53:12 * SSMIS-16 85-92GHz 60.0 -10.02 63.82 -10.01 63.85 0.37 1.04 0.90 10.6
20251021 13:54:02 * SSMIS-17 85-92GHz 60.0 -9.49 63.84 -9.51 63.80 0.36 1.02 0.40 12.4
20251021 09:23:29 * AMSR2 85-92GHz 60.0 -9.04 64.18 -9.02 64.25 0.15 0.42 0.10 96.3
20251021 09:23:29 AMSR2 37GHz 60.0 -9.74 65.09 -9.72 65.16 0.26 0.74 1.20 ***
20251021 02:14:38 * SSMIS-16 85-92GHz 60.0 -9.33 65.31 -9.34 65.26 0.19 0.55 0.40 46.8
20251021 01:16:05 SSMIS-17 85-92GHz 60.0 *** *** *** *** *** *** 0.50 ***
20251021 00:03:12 * SSMIS-18 85-92GHz 60.0 -8.80 65.23 -8.77 65.34 0.18 0.51 3.00 0.0
20251020 21:07:00 AMSR2 85-92GHz 60.0 -9.14 66.23 -9.11 66.30 0.23 0.65 1.40 36.0
20251020 21:07:00 * AMSR2 37GHz 60.0 -9.24 66.48 -9.21 66.56 0.21 0.58 0.60 ***
20251020 19:03:27 GMI 85-92GHz 60.0 -9.07 66.17 -9.12 66.04 0.23 0.64 0.70 47.8
20251020 19:03:27 GMI 37GHz 60.0 -9.42 66.62 -9.47 66.50 0.45 1.27 1.10 ***
20251020 17:06:00 * Metop-A ASCAT 59.3 -9.09 66.90 -9.09 66.90 0.14 0.40 *** ***
20251020 14:08:35 * SSMIS-17 85-92GHz 56.8 -8.86 66.34 -8.86 66.34 0.16 0.46 0.30 45.9
20251020 11:14:30 * SSMIS-18 85-92GHz 54.4 -8.64 66.70 -8.65 66.70 0.20 0.57 0.20 73.9
20251020 05:18:00 * Metop-C ASCAT 49.4 -8.68 67.63 -8.68 67.62 0.17 0.48 *** ***
20251020 04:33:00 Metop-A ASCAT 48.8 *** *** *** *** *** *** *** ***
20251020 02:28:19 * SSMIS-16 85-92GHz 47.1 -8.79 67.06 -8.79 67.06 0.25 0.70 0.20 49.8
20251020 01:29:50 SSMIS-17 85-92GHz 46.2 *** *** *** *** *** *** 0.70 ***
20251019 19:43:26 * GMI 85-92GHz 41.4 -8.77 68.01 -8.79 67.90 0.33 0.93 1.20 23.0
20251019 19:43:26 GMI 37GHz 41.4 -9.07 68.11 -9.09 68.01 0.48 1.37 0.60 ***
20251019 16:33:00 * Metop-C ASCAT 40.0 -8.65 68.48 -8.65 68.36 0.14 0.40 *** ***
20251019 08:13:26 * GMI 85-92GHz 40.0 -8.20 69.39 -8.20 69.35 0.51 1.45 1.00 0.8
20251019 08:13:26 GMI 37GHz 40.0 *** *** *** *** *** *** 0.60 ***
20251019 04:54:00 Metop-A ASCAT 39.1 *** *** *** *** *** *** *** ***
20251019 04:51:00 Metop-A ASCAT 39.0 *** *** *** *** *** *** *** ***
20251019 01:44:06 * SSMIS-17 85-92GHz 36.4 -8.97 69.16 -9.00 69.15 0.31 0.86 2.40 2.4
20251018 16:54:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20251018 08:52:57 AMSR2 85-92GHz 35.0 -7.75 73.92 -7.74 74.02 0.41 1.15 1.80 2.9
20251018 08:52:57 * AMSR2 37GHz 35.0 -7.95 73.77 -7.94 73.87 0.32 0.92 0.70 ***
20251018 04:18:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20251018 03:33:00 * Metop-A ASCAT 35.0 -7.82 74.48 -7.78 74.44 0.14 0.40 *** ***
20251018 01:14:22 SSMIS-16 85-92GHz 35.0 -7.34 73.74 -7.39 73.83 0.24 0.67 0.90 0.3
20251017 23:03:27 * SSMIS-18 85-92GHz 35.0 -7.27 74.51 -7.28 74.53 0.21 0.58 2.80 13.0

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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