-- Link to M-PERC page --

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
20210214 13:11:32 * SSMIS-17 85-92GHz 27.7 -19.80 76.29 -19.80 76.08 0.37 1.03 3.00 0.0
20210214 11:50:18 GMI 85-92GHz 28.4 -19.75 76.68 -19.75 76.74 0.43 1.21 2.50 1.0
20210214 11:50:18 * GMI 37GHz 28.4 -20.30 76.31 -20.30 76.36 0.37 1.04 1.10 ***
20210214 11:47:28 SSMIS-16 85-92GHz 28.4 -19.85 76.69 -19.85 76.74 0.53 1.50 2.50 0.3
20210214 00:38:50 * SSMIS-17 85-92GHz 32.2 -19.85 78.50 -19.76 78.68 0.59 1.68 2.70 0.2
20210213 23:41:47 SSMIS-18 85-92GHz 32.6 *** *** *** *** *** *** 3.00 ***
20210213 23:14:30 * SSMIS-16 85-92GHz 32.8 -19.84 78.50 -19.86 78.46 0.38 1.07 2.50 1.1
20210213 13:25:03 * SSMIS-17 85-92GHz 38.8 -19.64 79.68 -19.66 79.61 0.52 1.47 2.90 1.0
20210213 08:24:46 * AMSR2 85-92GHz 43.0 -20.58 80.45 -20.59 80.44 0.17 0.47 3.00 5.8
20210213 08:24:46 AMSR2 37GHz 43.0 -19.78 80.18 -19.79 80.18 0.58 1.65 0.90 ***
20210213 00:52:06 SSMIS-17 85-92GHz 47.1 -20.12 81.03 -20.04 81.09 0.38 1.08 0.40 9.2
20210212 20:13:43 AMSR2 85-92GHz 49.1 -18.51 80.93 -18.52 80.92 0.48 1.36 0.20 6.9
20210212 20:13:43 * AMSR2 37GHz 49.1 -19.46 80.98 -19.47 80.97 0.19 0.54 0.10 ***
20210212 13:38:37 SSMIS-17 85-92GHz 57.3 -19.63 81.39 -19.66 81.29 0.39 1.09 1.60 4.3
20210212 12:00:19 GMI 85-92GHz 60.0 -18.52 81.43 -18.50 81.50 0.35 0.98 2.00 4.7
20210212 12:00:19 * GMI 37GHz 60.0 -18.52 81.54 -18.50 81.61 0.31 0.87 0.50 ***
20210212 10:59:33 * SSMIS-18 85-92GHz 61.7 -18.38 81.83 -18.40 81.76 0.36 1.01 2.20 3.0
20210212 01:04:43 * SSMIS-17 85-92GHz 74.1 -18.14 82.90 -18.28 82.73 0.13 0.36 0.70 92.7
20210211 22:25:13 SSMIS-18 85-92GHz 76.3 -17.92 83.32 -18.03 83.20 0.14 0.41 0.50 89.9
20210211 22:15:45 SSMI-15 85-92GHz 76.4 -17.90 83.24 -18.03 83.09 0.14 0.40 0.50 90.3
20210211 19:30:20 * AMSR2 85-92GHz 78.7 -17.48 83.60 -17.57 83.49 0.11 0.32 0.40 100.0
20210211 19:30:18 * AMSR2 85-92GHz 78.7 -17.48 83.60 -17.57 83.49 0.11 0.32 0.40 100.0
20210211 19:30:18 AMSR2 37GHz 78.7 -17.33 83.60 -17.42 83.49 0.13 0.36 0.30 ***
20210211 15:39:00 Metop-B ASCAT 82.9 -16.83 83.68 -16.74 83.79 0.20 0.56 *** ***
20210211 14:24:00 * Metop-A ASCAT 84.5 -16.79 83.90 -16.80 83.89 0.19 0.53 *** ***
20210211 11:12:34 * SSMIS-18 85-92GHz 88.5 -17.00 84.47 -17.02 84.44 0.13 0.37 1.40 4.9
20210211 10:46:19 * SSMIS-16 85-92GHz 89.0 -17.07 84.40 -17.12 84.34 0.13 0.36 0.10 54.5
20210211 03:06:00 Metop-B ASCAT 93.8 -15.89 84.72 -15.86 84.78 0.32 0.91 *** ***
20210211 01:54:00 Metop-A ASCAT 93.3 *** *** *** *** *** *** *** ***
20210211 01:51:00 Metop-A ASCAT 93.3 *** *** *** *** *** *** *** ***
20210211 01:25:18 * GMI 85-92GHz 93.1 -16.17 84.93 -16.21 84.83 0.11 0.30 0.40 100.0
20210211 01:25:18 GMI 37GHz 93.1 -16.12 84.93 -16.16 84.83 0.12 0.34 0.20 ***
20210211 01:17:50 SSMIS-17 85-92GHz 93.0 -16.16 84.88 -16.21 84.78 0.13 0.38 0.30 97.3
20210210 22:37:15 SSMIS-18 85-92GHz 91.9 -16.00 85.16 -16.03 85.09 0.11 0.30 0.20 100.0
20210210 22:31:08 * SSMI-15 85-92GHz 91.9 -15.99 85.16 -16.03 85.09 0.10 0.28 0.30 100.0
20210210 22:11:18 SSMIS-16 85-92GHz 91.7 -15.93 85.24 -15.98 85.15 0.13 0.37 0.30 87.2
20210210 12:10:18 * GMI 85-92GHz 92.4 -15.53 85.35 -15.50 85.33 0.11 0.32 0.40 100.0
20210210 12:10:18 GMI 37GHz 92.4 -15.48 85.30 -15.45 85.27 0.12 0.33 0.20 ***
20210210 11:25:42 * SSMIS-18 85-92GHz 92.7 -15.55 85.27 -15.55 85.27 0.10 0.29 0.30 100.0
20210210 10:59:24 SSMIS-16 85-92GHz 92.9 -15.53 85.35 -15.55 85.38 0.10 0.29 0.40 100.0
20210210 07:55:16 * AMSR2 85-92GHz 94.2 -15.39 85.12 -15.42 85.14 0.12 0.33 0.40 100.0
20210210 07:55:16 AMSR2 37GHz 94.2 -15.29 85.07 -15.32 85.09 0.13 0.36 0.20 ***
20210210 03:27:00 Metop-B ASCAT 98.2 *** *** *** *** *** *** *** ***
20210210 02:12:00 * Metop-A ASCAT 99.7 -15.13 84.91 -15.15 84.92 0.13 0.37 *** ***
20210209 22:49:35 * SSMIS-18 85-92GHz 104.0 -14.93 84.98 -14.98 84.99 0.10 0.27 0.40 100.0
20210209 22:23:49 SSMIS-16 85-92GHz 104.5 -14.85 85.02 -14.93 85.04 0.10 0.29 0.30 100.0
20210209 19:41:41 * AMSR2 85-92GHz 107.9 -14.81 84.51 -14.86 84.53 0.12 0.33 0.70 100.0
20210209 19:41:41 AMSR2 37GHz 107.9 -14.91 84.61 -14.96 84.64 0.13 0.38 0.20 ***
20210209 16:21:00 Metop-B ASCAT 112.7 -14.51 84.51 -14.58 84.58 0.19 0.53 *** ***
20210209 15:06:00 Metop-A ASCAT 114.8 -14.38 84.45 -14.34 84.39 0.25 0.71 *** ***
20210209 13:05:19 * GMI 85-92GHz 118.2 -14.28 84.40 -14.38 84.55 0.11 0.30 0.30 100.0
20210209 13:05:19 GMI 37GHz 118.2 -14.38 84.30 -14.48 84.45 0.13 0.37 0.20 ***
20210209 12:38:55 SSMIS-17 85-92GHz 118.9 -14.22 84.40 -14.15 84.27 0.10 0.28 0.30 100.0
20210209 11:38:55 SSMIS-18 85-92GHz 120.6 -14.30 84.14 -14.29 84.12 0.13 0.37 0.30 93.1
20210209 11:12:56 * SSMIS-16 85-92GHz 121.3 -14.28 84.09 -14.29 84.13 0.11 0.30 0.30 100.0
20210208 23:02:13 * SSMIS-18 85-92GHz 135.8 -14.02 82.91 -14.01 82.95 0.10 0.27 0.40 100.0
20210208 22:36:33 SSMIS-16 85-92GHz 136.2 -14.03 82.93 -14.01 83.00 0.11 0.30 0.40 100.0
20210208 16:42:00 * Metop-B ASCAT 137.8 -14.30 82.44 -14.30 82.50 0.15 0.42 *** ***
20210208 15:27:00 Metop-A ASCAT 135.8 -14.15 82.13 -14.15 82.05 0.18 0.51 *** ***
20210208 12:52:21 * SSMIS-17 85-92GHz 131.5 -14.25 82.18 -14.25 82.07 0.09 0.25 0.40 100.0
20210208 11:26:01 * SSMIS-16 85-92GHz 129.1 -14.40 81.86 -14.40 81.86 0.09 0.25 0.50 100.0
20210208 08:07:59 * AMSR2 85-92GHz 123.6 -14.30 81.64 -14.30 81.67 0.09 0.25 0.50 100.0
20210208 08:07:59 AMSR2 37GHz 123.6 -14.25 81.64 -14.25 81.67 0.13 0.35 0.20 ***
20210207 23:15:00 * SSMIS-18 85-92GHz 117.2 -14.34 80.77 -14.33 80.80 0.09 0.26 0.70 100.0
20210207 22:49:42 * SSMIS-16 85-92GHz 117.0 -14.31 80.72 -14.28 80.80 0.09 0.26 0.60 100.0
20210207 13:05:38 * SSMIS-17 85-92GHz 115.0 -14.71 80.15 -14.66 80.19 0.10 0.29 0.50 100.0
20210207 11:38:57 * SSMIS-16 85-92GHz 115.0 -14.85 79.81 -14.86 79.81 0.10 0.27 0.40 100.0
20210207 10:27:37 * SSMI-15 85-92GHz 115.0 -14.79 79.84 -14.76 79.86 0.10 0.27 0.50 100.0
20210206 23:27:54 SSMIS-18 85-92GHz 93.2 -14.78 79.59 -14.78 79.59 0.14 0.38 0.50 99.0
20210206 23:02:57 * SSMIS-16 85-92GHz 91.8 -14.72 79.58 -14.73 79.59 0.13 0.35 0.40 100.0
20210206 13:19:12 * SSMIS-17 85-92GHz 67.2 -14.44 79.74 -14.51 79.73 0.14 0.41 0.30 96.7
20210206 00:43:08 * SSMIS-17 85-92GHz 52.8 -13.84 80.08 -13.76 80.13 0.11 0.32 0.40 100.0
20210205 23:15:42 * SSMIS-16 85-92GHz 52.2 -13.69 80.09 -13.71 80.08 0.10 0.28 0.50 100.0

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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