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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
20180502 21:58:26 SSMIS-16 85-92GHz 35.0 -21.24 85.54 -21.02 85.37 0.47 1.32 2.30 0.2
20180502 21:11:40 * GMI 85-92GHz 35.0 -21.22 85.34 -21.12 85.26 0.43 1.21 3.00 0.0
20180502 21:11:40 GMI 37GHz 35.0 *** *** *** *** *** *** 1.90 ***
20180502 12:39:12 SSMIS-17 85-92GHz 35.0 *** *** *** *** *** *** 0.50 ***
20180502 10:44:04 SSMIS-16 85-92GHz 35.7 *** *** *** *** *** *** 0.30 ***
20180502 08:57:42 SSMI-15 85-92GHz 36.7 *** *** *** *** *** *** 3.00 ***
20180502 07:46:32 AMSR2 85-92GHz 37.3 *** *** *** *** *** *** 2.90 ***
20180502 07:46:32 * AMSR2 37GHz 37.3 -20.33 85.53 -20.44 85.59 0.43 1.21 1.50 ***
20180502 04:09:00 Metop-A ASCAT 39.4 *** *** *** *** *** *** *** ***
20180502 03:27:00 Metop-B ASCAT 39.7 *** *** *** *** *** *** *** ***
20180501 22:10:41 * SSMIS-16 85-92GHz 40.0 -18.03 84.06 -18.15 84.11 0.38 1.06 2.20 0.8
20180501 19:35:26 AMSR2 85-92GHz 40.0 -18.00 83.93 -18.07 83.96 0.37 1.04 2.90 1.7
20180501 19:35:26 * AMSR2 37GHz 40.0 -18.55 84.56 -18.62 84.59 0.34 0.96 1.00 ***
20180501 16:18:00 * Metop-B ASCAT 42.8 -17.35 83.92 -17.45 83.96 0.19 0.53 *** ***
20180501 15:18:00 Metop-A ASCAT 44.5 *** *** *** *** *** *** *** ***
20180501 12:53:19 SSMIS-17 85-92GHz 48.5 *** *** *** *** *** *** 1.70 ***
20180501 10:57:55 SSMIS-16 85-92GHz 50.0 *** *** *** *** *** *** 2.70 ***
20180501 10:41:38 GMI 85-92GHz 50.0 -17.53 83.89 -17.60 83.92 0.49 1.38 2.80 0.8
20180501 10:41:38 * GMI 37GHz 50.0 -18.63 84.31 -18.70 84.34 0.27 0.75 0.10 ***
20180501 09:14:22 SSMI-15 85-92GHz 50.0 *** *** *** *** *** *** 2.70 ***
20180501 00:19:16 * SSMIS-17 85-92GHz 65.0 -18.20 84.20 -18.18 84.23 0.21 0.60 2.70 3.1
20180430 22:23:27 * SSMIS-16 85-92GHz 66.3 -17.98 84.30 -18.13 84.28 0.18 0.52 0.30 57.9
20180430 16:39:00 Metop-B ASCAT 70.0 *** *** *** *** *** *** *** ***
20180430 15:39:00 Metop-A ASCAT 70.0 *** *** *** *** *** *** *** ***
20180430 13:07:08 SSMIS-17 85-92GHz 70.0 -16.18 84.49 -16.32 84.46 0.24 0.67 0.60 35.2
20180430 12:08:18 * SSMIS-18 85-92GHz 70.0 -16.07 84.61 -15.99 84.62 0.21 0.60 0.60 59.5
20180430 09:30:49 * SSMI-15 85-92GHz 67.9 -15.56 84.48 -15.43 84.51 0.13 0.36 0.70 99.2
20180430 08:00:06 * AMSR2 85-92GHz 66.7 -15.37 84.47 -15.43 84.45 0.11 0.32 0.70 100.0
20180430 08:00:06 AMSR2 37GHz 66.7 -15.32 84.42 -15.38 84.40 0.17 0.47 0.20 ***
20180430 04:09:00 Metop-B ASCAT 60.4 -14.20 84.43 -14.31 84.34 0.18 0.50 *** ***
20180430 03:09:00 * Metop-A ASCAT 57.9 -14.32 84.62 -14.27 84.67 0.17 0.48 *** ***
20180430 00:31:49 * SSMIS-17 85-92GHz 51.3 -14.70 85.41 -14.59 85.52 0.16 0.46 0.20 50.4
20180429 22:16:39 GMI 85-92GHz 48.6 -14.11 85.43 -14.28 85.30 0.17 0.49 0.10 86.5
20180429 22:16:39 GMI 37GHz 48.6 -14.21 85.33 -14.38 85.19 0.23 0.66 0.20 ***
20180429 20:56:30 SSMI-15 85-92GHz 47.5 -14.00 85.49 -13.93 85.55 0.22 0.61 1.40 15.2
20180429 19:46:09 AMSR2 85-92GHz 46.5 -14.01 85.59 -14.13 85.50 0.19 0.54 2.10 59.8
20180429 19:46:09 * AMSR2 37GHz 46.5 -13.61 85.18 -13.73 85.09 0.15 0.43 0.60 ***
20180429 16:03:00 Metop-A ASCAT 49.9 -13.08 85.77 -13.26 85.63 0.19 0.53 *** ***
20180429 15:21:00 Metop-B ASCAT 51.6 -13.00 85.88 -12.90 85.95 0.17 0.48 *** ***
20180429 13:21:23 SSMIS-17 85-92GHz 56.6 -12.85 86.08 -12.98 85.97 0.16 0.46 0.30 87.5
20180429 12:21:22 * SSMIS-18 85-92GHz 59.1 -12.94 86.25 -12.84 86.38 0.14 0.40 0.30 87.5
20180429 10:51:40 GMI 85-92GHz 59.1 -12.78 86.47 -12.85 86.35 0.17 0.47 0.40 94.6
20180429 10:51:40 GMI 37GHz 59.1 -12.68 86.47 -12.75 86.35 0.16 0.45 0.30 ***
20180429 09:44:12 * SSMIS-16 85-92GHz 58.1 -12.70 86.72 -12.57 87.06 0.12 0.35 0.40 99.9
20180429 07:17:51 AMSR2 85-92GHz 56.1 *** *** *** *** *** *** 3.00 ***
20180429 07:17:51 AMSR2 37GHz 56.1 *** *** *** *** *** *** 0.70 ***
20180429 03:27:00 Metop-A ASCAT 50.8 *** *** *** *** *** *** *** ***
20180429 02:48:00 Metop-B ASCAT 49.7 *** *** *** *** *** *** *** ***
20180429 00:43:52 * SSMIS-17 85-92GHz 46.2 -11.32 88.89 -11.13 89.04 0.09 0.26 0.60 100.0
20180428 23:43:41 * SSMIS-18 85-92GHz 45.0 -10.96 89.07 -10.93 89.09 0.09 0.27 0.50 100.0
20180428 19:02:17 * AMSR2 85-92GHz 45.0 -10.23 89.88 -10.39 89.80 0.20 0.55 0.20 98.9
20180428 19:02:17 AMSR2 37GHz 45.0 -10.38 89.17 -10.54 89.09 0.39 1.11 2.30 ***
20180428 15:42:00 Metop-B ASCAT 43.1 *** *** *** *** *** *** *** ***
20180428 08:23:15 SSMI-15 85-92GHz 37.0 *** *** *** *** *** *** 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

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