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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
20190430 00:14:56 SSMIS-17 85-92GHz 30.0 -22.69 88.85 -22.56 88.85 0.51 1.43 1.30 0.6
20190429 23:19:51 SSMIS-18 85-92GHz 30.4 -22.49 88.80 -22.51 88.80 0.45 1.27 1.10 0.9
20190429 19:19:18 AMSR2 85-92GHz 32.6 -22.29 89.18 -22.47 89.18 0.52 1.46 0.50 1.0
20190429 19:19:18 * AMSR2 37GHz 32.6 -22.54 89.50 -22.72 89.50 0.33 0.93 1.50 ***
20190429 16:06:00 * Metop-B ASCAT 34.4 -21.36 88.91 -21.56 88.91 0.14 0.39 *** ***
20190429 14:54:00 Metop-A ASCAT 35.0 -21.44 89.02 -21.38 89.02 0.16 0.44 *** ***
20190429 12:59:15 SSMIS-17 85-92GHz 35.0 -21.58 88.96 -21.39 88.96 0.36 1.01 1.70 1.5
20190429 12:04:24 SSMIS-18 85-92GHz 35.0 -21.51 88.85 -21.44 88.86 0.61 1.73 1.40 0.1
20190429 03:39:00 * Metop-B ASCAT 53.9 -20.40 89.31 -20.19 89.48 0.15 0.42 *** ***
20190429 02:24:00 * Metop-A ASCAT 56.0 -20.33 89.36 -20.34 89.34 0.16 0.44 *** ***
20190429 00:36:39 GMI 85-92GHz 59.0 -19.83 89.34 -19.69 89.48 0.20 0.56 3.00 15.0
20190429 00:36:39 GMI 37GHz 59.0 -20.48 89.71 -20.34 89.85 0.40 1.13 0.90 ***
20190429 00:27:05 SSMIS-17 85-92GHz 60.0 -19.75 89.51 -19.63 89.62 0.31 0.86 3.00 4.7
20190428 23:31:36 SSMIS-18 85-92GHz 61.2 -19.75 89.50 -19.74 89.51 0.35 0.98 3.00 4.2
20190428 11:16:39 GMI 85-92GHz 75.0 -18.15 89.94 -18.20 89.95 0.10 0.29 0.60 100.0
20190428 11:16:39 * GMI 37GHz 75.0 -18.05 89.89 -18.10 89.90 0.09 0.25 0.30 ***
20190428 09:39:40 SSMIS-16 85-92GHz 75.0 -17.82 89.94 -17.53 89.89 0.09 0.24 0.50 100.0
20190428 07:42:24 * AMSR2 85-92GHz 75.0 -17.33 89.77 -17.52 89.80 0.08 0.22 0.60 100.0
20190428 07:42:24 AMSR2 37GHz 75.0 -17.23 89.66 -17.42 89.70 0.10 0.28 0.40 ***
20190428 03:57:00 Metop-B ASCAT 69.9 *** *** *** *** *** *** *** ***
20190428 02:45:00 Metop-A ASCAT 66.9 -16.52 89.20 -16.48 89.16 0.14 0.40 *** ***
20190428 00:39:12 * SSMIS-17 85-92GHz 61.6 -15.86 89.23 -15.67 89.21 0.08 0.22 0.80 100.0
20190427 23:42:56 * SSMIS-18 85-92GHz 60.0 -15.80 89.31 -15.77 89.31 0.08 0.21 0.50 100.0
20190427 19:29:30 * AMSR2 85-92GHz 60.0 -15.28 89.11 -15.43 89.11 0.11 0.31 0.50 100.0
20190427 19:29:30 AMSR2 37GHz 60.0 -15.23 88.95 -15.38 88.95 0.13 0.37 0.40 ***
20190427 15:36:00 * Metop-A ASCAT 62.0 -14.64 88.81 -14.57 88.73 0.19 0.53 *** ***
20190427 15:09:00 Metop-B ASCAT 62.4 -14.51 88.83 -14.47 88.78 0.20 0.58 *** ***
20190427 09:53:19 * SSMIS-16 85-92GHz 65.0 -14.61 88.65 -14.59 88.65 0.18 0.50 1.00 64.1
20190427 00:52:13 SSMIS-17 85-92GHz 65.0 -13.79 88.71 -13.71 88.74 0.21 0.60 0.70 64.9
20190427 00:46:39 * GMI 85-92GHz 65.0 -13.38 88.71 -13.30 88.73 0.15 0.41 0.30 100.0
20190427 00:46:39 GMI 37GHz 65.0 -13.58 88.86 -13.50 88.89 0.18 0.50 0.60 ***
20190426 21:17:28 SSMIS-16 85-92GHz 65.0 *** *** *** *** *** *** 3.00 ***
20190426 15:57:00 Metop-A ASCAT 63.3 *** *** *** *** *** *** *** ***
20190426 15:30:00 Metop-B ASCAT 62.9 *** *** *** *** *** *** *** ***
20190426 10:06:44 SSMIS-16 85-92GHz 61.6 *** *** *** *** *** *** 0.30 ***
20190426 07:56:14 AMSR2 85-92GHz 63.4 -11.70 87.38 -11.83 87.49 0.32 0.90 0.20 31.8
20190426 07:56:14 * AMSR2 37GHz 63.4 -11.65 88.04 -11.78 88.16 0.14 0.39 0.40 ***
20190426 03:24:00 * Metop-A ASCAT 65.0 -11.20 87.38 -11.18 87.33 0.13 0.36 *** ***
20190426 02:57:00 Metop-B ASCAT 65.0 -11.14 87.35 -11.13 87.33 0.14 0.39 *** ***
20190426 01:04:57 * SSMIS-17 85-92GHz 65.0 -10.79 86.65 -10.82 86.74 0.13 0.38 0.40 96.9
20190425 21:29:49 SSMIS-16 85-92GHz 60.8 *** *** *** *** *** *** 2.80 ***
20190425 19:40:46 AMSR2 85-92GHz 57.8 *** *** *** *** *** *** 0.30 ***
20190425 19:40:46 * AMSR2 37GHz 57.8 -10.74 86.06 -10.77 86.17 0.25 0.71 0.20 ***
20190425 10:20:17 * SSMIS-16 85-92GHz 48.6 -10.43 85.11 -10.47 85.20 0.32 0.91 0.10 8.9
20190425 03:45:00 * Metop-A ASCAT 44.1 -10.46 85.32 -10.42 85.22 0.14 0.40 *** ***
20190425 03:18:00 * Metop-B ASCAT 43.9 -10.51 85.39 -10.49 85.33 0.15 0.41 *** ***
20190425 01:18:04 SSMIS-17 85-92GHz 42.4 -10.21 84.29 -10.25 84.38 0.26 0.73 2.60 -0.7
20190424 21:42:38 * SSMIS-16 85-92GHz 41.5 -10.54 85.00 -10.51 84.93 0.17 0.47 2.00 26.2
20190424 16:15:00 * Metop-B ASCAT 40.0 -10.38 84.56 -10.31 84.59 0.14 0.39 *** ***
20190424 15:00:00 Metop-A ASCAT 40.0 -10.25 84.65 -10.30 84.65 0.18 0.52 *** ***
20190424 13:16:39 GMI 85-92GHz 40.0 -10.25 84.88 -10.15 84.90 0.45 1.26 2.20 5.5
20190424 13:16:39 GMI 37GHz 40.0 -10.25 84.48 -10.15 84.49 0.29 0.83 0.30 ***
20190424 11:29:00 * SSMIS-18 85-92GHz 40.0 -10.50 84.22 -10.50 84.22 0.22 0.62 0.20 46.3
20190424 10:33:44 SSMIS-16 85-92GHz 40.0 -10.40 84.15 -10.40 84.21 0.27 0.76 0.40 13.4
20190424 08:08:45 AMSR2 85-92GHz 40.0 -10.45 84.23 -10.45 84.27 0.45 1.27 1.10 4.2
20190424 08:08:45 * AMSR2 37GHz 40.0 -10.30 84.33 -10.30 84.37 0.32 0.91 0.30 ***
20190424 01:46:39 GMI 85-92GHz 40.0 -9.98 83.88 -10.01 83.91 0.49 1.38 2.80 1.6
20190424 01:46:39 * GMI 37GHz 40.0 -10.08 83.83 -10.11 83.86 0.21 0.58 0.20 ***
20190423 21:55:35 * SSMIS-16 85-92GHz 40.0 -9.27 83.62 -9.00 83.35 0.17 0.47 2.90 4.8
20190423 19:52:47 AMSR2 85-92GHz 40.0 -9.39 83.28 -9.51 83.40 0.30 0.84 1.60 3.0
20190423 19:52:47 AMSR2 37GHz 40.0 -9.09 83.03 -9.21 83.15 0.24 0.69 3.00 ***
20190423 16:33:00 Metop-B ASCAT 38.8 -9.43 82.56 -9.58 82.70 0.17 0.48 *** ***
20190423 15:21:00 * Metop-A ASCAT 37.8 -9.21 82.46 -9.08 82.35 0.12 0.34 *** ***
20190423 11:42:21 * SSMIS-18 85-92GHz 35.0 -8.01 82.27 -7.97 82.24 0.15 0.41 2.00 21.1
20190423 10:47:37 SSMIS-16 85-92GHz 35.0 -8.17 81.94 -8.27 82.04 0.32 0.89 1.90 8.9

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

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