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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
20251202 20:32:54 * SSMIS-18 85-92GHz 20.0 13.51 110.97 13.52 110.97 0.56 1.59 3.00 0.0
20251202 04:58:27 * GMI 85-92GHz 23.9 14.07 111.49 14.05 111.48 0.18 0.51 1.40 6.6
20251202 04:58:27 GMI 37GHz 23.9 13.97 111.49 13.95 111.48 0.20 0.58 1.10 ***
20251202 02:00:00 Metop-C ASCAT 25.0 14.18 111.24 14.17 111.24 0.21 0.59 *** ***
20251202 01:18:00 * Metop-A ASCAT 25.0 13.96 111.50 13.92 111.50 0.15 0.41 *** ***
20251201 23:12:59 SSMIS-16 85-92GHz 25.7 14.28 111.64 14.27 111.65 0.22 0.61 1.80 4.5
20251201 20:46:33 SSMIS-18 85-92GHz 27.7 *** *** *** *** *** *** 1.20 ***
20251201 18:20:08 AMSR2 85-92GHz 30.0 14.49 111.25 14.53 111.25 0.21 0.60 1.90 4.0
20251201 18:20:08 * AMSR2 37GHz 30.0 14.39 111.20 14.43 111.20 0.15 0.41 0.70 ***
20251201 13:27:00 * Metop-C ASCAT 30.0 14.46 111.40 14.41 111.33 0.14 0.39 *** ***
20251201 12:48:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20251201 08:11:52 SSMIS-18 85-92GHz 33.2 14.65 111.66 14.65 111.66 0.22 0.62 1.30 5.0
20251201 06:06:37 AMSR2 85-92GHz 35.0 14.58 111.61 14.58 111.61 0.21 0.58 1.40 8.3
20251201 06:06:37 * AMSR2 37GHz 35.0 14.73 111.45 14.73 111.46 0.14 0.40 0.70 ***
20251130 23:26:28 SSMIS-16 85-92GHz 35.0 15.00 111.71 15.00 111.70 0.44 1.25 2.00 0.9
20251130 21:00:23 * SSMIS-18 85-92GHz 35.0 15.00 111.56 15.02 111.58 0.24 0.67 1.70 5.6
20251130 16:18:26 GMI 85-92GHz 37.8 14.71 111.91 14.79 111.82 0.25 0.72 3.00 6.1
20251130 16:18:26 * GMI 37GHz 37.8 14.76 111.75 14.84 111.67 0.21 0.59 0.80 ***
20251130 13:06:00 * Metop-A ASCAT 43.2 14.81 111.84 14.96 111.74 0.18 0.51 *** ***
20251130 10:50:59 * SSMIS-16 85-92GHz 45.0 13.92 111.97 13.94 111.95 0.20 0.56 0.70 45.1
20251130 08:25:44 SSMIS-18 85-92GHz 45.0 14.40 111.96 14.40 111.96 0.55 1.56 1.30 1.1
20251130 02:42:00 * Metop-C ASCAT 47.7 14.52 112.17 14.51 112.17 0.18 0.51 *** ***
20251129 23:40:24 * SSMIS-16 85-92GHz 49.7 14.24 112.09 14.23 112.09 0.26 0.72 0.90 17.2
20251129 22:22:09 SSMIS-17 85-92GHz 48.6 14.02 112.37 14.08 112.40 0.34 0.97 0.40 17.0
20251129 21:15:31 SSMIS-18 85-92GHz 47.7 14.06 112.23 14.03 112.20 0.30 0.83 0.20 6.4
20251129 18:32:38 AMSR2 85-92GHz 45.0 13.92 112.05 13.88 112.01 0.20 0.57 0.80 43.8
20251129 18:32:38 * AMSR2 37GHz 45.0 14.02 112.05 13.98 112.01 0.13 0.35 0.60 ***
20251129 14:09:00 * Metop-C ASCAT 45.0 13.47 112.10 13.48 112.12 0.13 0.36 *** ***
20251129 11:03:53 * SSMIS-16 85-92GHz 45.0 12.99 112.05 13.00 112.05 0.11 0.30 1.00 100.0
20251129 08:39:41 SSMIS-18 85-92GHz 45.0 13.09 111.79 13.08 111.79 0.18 0.50 0.70 73.2
20251129 06:18:32 AMSR2 85-92GHz 45.0 13.31 111.79 13.28 111.80 0.15 0.43 0.60 82.4
20251129 06:18:32 * AMSR2 37GHz 45.0 13.31 111.95 13.28 111.95 0.12 0.34 0.30 ***
20251129 05:28:27 GMI 85-92GHz 45.0 13.43 111.95 13.43 111.95 0.17 0.49 0.70 48.1
20251129 05:28:27 * GMI 37GHz 45.0 13.33 111.95 13.33 111.95 0.16 0.45 0.30 ***
20251128 23:54:32 SSMIS-16 85-92GHz 45.1 12.95 111.79 12.94 111.81 0.42 1.18 1.30 5.2
20251128 22:36:33 SSMIS-17 85-92GHz 46.2 12.82 112.14 12.84 112.09 0.38 1.07 1.40 6.9
20251128 17:49:53 AMSR2 85-92GHz 50.0 13.19 112.50 13.19 112.50 0.43 1.21 0.30 18.3
20251128 17:49:53 * AMSR2 37GHz 50.0 12.74 112.40 12.74 112.40 0.11 0.32 0.60 ***
20251128 14:30:00 Metop-C ASCAT 50.0 *** *** *** *** *** *** *** ***
20251128 13:45:00 * Metop-A ASCAT 50.0 12.56 112.65 12.58 112.66 0.17 0.47 *** ***
20251128 09:59:50 SSMIS-17 85-92GHz 50.0 12.33 112.25 12.28 112.34 0.41 1.17 0.50 17.3
20251128 08:54:56 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 3.00 ***
20251128 01:45:00 Metop-C ASCAT 53.5 12.28 113.05 12.30 113.01 0.16 0.45 *** ***
20251128 01:03:00 Metop-A ASCAT 55.0 *** *** *** *** *** *** *** ***
20251128 01:00:00 * Metop-A ASCAT 55.0 12.10 113.17 12.09 113.27 0.13 0.36 *** ***
20251127 22:51:03 SSMIS-17 85-92GHz 56.0 12.40 113.14 12.40 113.07 0.30 0.84 2.70 3.1
20251127 16:48:27 GMI 85-92GHz 61.0 12.29 113.44 12.26 113.41 0.22 0.63 2.80 9.4
20251127 16:48:27 * GMI 37GHz 61.0 12.39 113.59 12.36 113.56 0.14 0.39 0.80 ***
20251127 11:31:39 SSMIS-16 85-92GHz 65.4 12.55 113.54 12.56 113.54 0.28 0.80 0.70 3.1
20251127 10:14:30 * SSMIS-17 85-92GHz 66.5 12.75 114.06 12.68 114.06 0.22 0.63 2.10 8.5
20251127 01:21:00 Metop-A ASCAT 77.7 *** *** *** *** *** *** *** ***
20251126 20:16:36 SSMIS-18 85-92GHz 73.8 13.35 114.60 13.35 114.55 0.23 0.65 0.20 20.8
20251126 18:01:59 AMSR2 85-92GHz 70.0 13.30 114.75 13.29 114.81 0.23 0.64 0.30 56.9
20251126 18:01:59 * AMSR2 37GHz 70.0 13.05 115.00 13.04 115.07 0.15 0.44 0.30 ***
20251126 17:33:27 GMI 85-92GHz 69.3 *** *** *** *** *** *** 0.40 ***
20251126 17:33:27 GMI 37GHz 69.3 *** *** *** *** *** *** 1.00 ***
20251126 13:30:00 Metop-C ASCAT 62.5 *** *** *** *** *** *** *** ***
20251126 12:48:00 * Metop-A ASCAT 60.7 12.53 115.65 12.38 115.81 0.13 0.38 *** ***
20251126 07:40:02 SSMIS-18 85-92GHz 56.4 *** *** *** *** *** *** 3.00 ***
20251126 05:58:26 * GMI 85-92GHz 55.0 12.05 116.30 12.06 116.38 0.14 0.41 0.40 82.3
20251126 05:58:26 GMI 37GHz 55.0 11.85 116.40 11.86 116.49 0.25 0.70 0.60 ***
20251126 05:47:26 AMSR2 85-92GHz 55.0 11.85 116.38 11.86 116.44 0.20 0.56 0.90 77.9
20251126 05:47:26 AMSR2 37GHz 55.0 11.85 116.33 11.86 116.38 0.22 0.63 0.70 ***
20251126 02:24:00 Metop-C ASCAT 55.0 *** *** *** *** *** *** *** ***
20251125 22:54:53 SSMIS-16 85-92GHz 54.1 *** *** *** *** *** *** 0.50 ***
20251125 20:31:00 SSMIS-18 85-92GHz 52.1 *** *** *** *** *** *** 0.70 ***
20251125 17:19:15 AMSR2 85-92GHz 48.9 *** *** *** *** *** *** 0.20 ***
20251125 17:19:15 * AMSR2 37GHz 48.9 12.04 119.35 12.06 119.33 0.40 1.14 0.20 ***
20251125 13:09:00 * Metop-A ASCAT 41.9 11.22 120.34 11.38 120.18 0.50 1.42 *** ***
20251125 07:54:46 SSMIS-18 85-92GHz 36.6 *** *** *** *** *** *** 1.50 ***
20251125 05:03:59 * AMSR2 85-92GHz 34.2 10.94 121.28 10.96 121.20 0.53 1.48 0.40 6.2
20251125 05:03:59 AMSR2 37GHz 34.2 11.09 121.28 11.11 121.20 0.63 1.79 2.80 ***
20251125 01:06:00 Metop-C ASCAT 30.0 11.57 123.60 11.66 123.32 0.70 1.98 *** ***
20251125 00:24:00 Metop-A ASCAT 30.0 *** *** *** *** *** *** *** ***
20251124 23:09:02 * SSMIS-16 85-92GHz 29.3 10.15 121.71 10.19 121.64 0.41 1.17 3.00 0.0
20251124 21:53:05 SSMIS-17 85-92GHz 28.2 *** *** *** *** *** *** 3.00 ***

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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