-- 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
20241015 05:05:16 SSMIS-18 85-92GHz 30.4 *** *** *** *** *** *** 2.80 ***
20241015 02:59:04 AMSR2 85-92GHz 31.3 37.10 -17.19 37.10 -17.28 0.54 1.53 0.70 0.5
20241015 02:59:04 * AMSR2 37GHz 31.3 36.65 -16.88 36.65 -16.97 0.45 1.26 0.70 ***
20241014 22:48:00 * Metop-C ASCAT 33.0 38.05 -17.29 38.05 -16.93 0.29 0.82 *** ***
20241014 21:51:00 Metop-A ASCAT 33.4 *** *** *** *** *** *** *** ***
20241014 19:17:50 SSMIS-17 85-92GHz 34.5 *** *** *** *** *** *** 0.30 ***
20241014 19:01:50 * SSMIS-16 85-92GHz 34.6 37.25 -19.73 37.25 -20.22 0.62 1.74 0.60 0.1
20241014 16:42:00 SSMIS-18 85-92GHz 35.0 *** *** *** *** *** *** 1.90 ***
20241014 14:57:51 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 0.10 ***
20241014 14:57:51 AMSR2 37GHz 35.0 *** *** *** *** *** *** 2.40 ***
20241014 13:58:56 GMI 85-92GHz 35.0 *** *** *** *** *** *** 0.10 ***
20241014 13:58:56 GMI 37GHz 35.0 *** *** *** *** *** *** 3.00 ***
20241014 10:33:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20241014 07:54:40 * SSMIS-17 85-92GHz 35.0 37.61 -24.10 37.57 -23.78 0.49 1.39 0.70 0.6
20241014 07:38:31 SSMIS-16 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20241013 23:09:00 Metop-C ASCAT 37.9 *** *** *** *** *** *** *** ***
20241013 23:06:00 Metop-C ASCAT 37.9 *** *** *** *** *** *** *** ***
20241013 19:32:14 * SSMIS-17 85-92GHz 39.4 38.47 -29.02 38.49 -28.45 0.25 0.72 3.00 0.0
20241013 19:16:05 SSMIS-16 85-92GHz 39.5 38.02 -30.09 38.04 -29.39 0.30 0.86 0.20 2.4
20241013 16:56:36 * SSMIS-18 85-92GHz 40.0 37.67 -30.42 37.70 -30.04 0.30 0.85 0.70 6.5
20241013 14:38:55 GMI 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***
20241013 14:38:55 GMI 37GHz 40.0 *** *** *** *** *** *** 3.00 ***
20241013 11:48:00 Metop-C ASCAT 40.0 38.25 -32.31 38.25 -32.33 1.45 4.09 *** ***
20241013 09:33:37 * SSMIS-16 85-92GHz 40.0 37.70 -34.49 37.60 -34.87 0.60 1.68 3.00 0.0
20241013 07:14:19 SSMIS-18 85-92GHz 40.0 37.56 -35.89 37.37 -36.59 0.60 1.69 0.30 0.2
20241013 04:50:15 AMSR2 85-92GHz 40.5 *** *** *** *** *** *** 2.70 ***
20241013 04:50:15 * AMSR2 37GHz 40.5 36.63 -36.90 36.77 -36.47 0.49 1.40 2.60 ***
20241013 01:03:55 GMI 85-92GHz 42.1 36.18 -38.99 35.87 -39.63 0.47 1.32 0.30 0.4
20241013 01:03:55 * GMI 37GHz 42.1 35.38 -39.29 35.07 -39.94 0.26 0.72 2.70 ***
20241013 00:15:00 Metop-A ASCAT 42.4 *** *** *** *** *** *** *** ***
20241013 00:12:00 Metop-A ASCAT 42.4 *** *** *** *** *** *** *** ***
20241012 23:30:00 Metop-C ASCAT 42.7 36.66 -41.04 36.72 -40.91 0.35 0.98 *** ***
20241012 23:27:00 Metop-C ASCAT 42.7 36.64 -41.06 36.72 -40.91 0.40 1.13 *** ***
20241012 18:50:45 * SSMIS-18 85-92GHz 44.6 33.71 -41.63 33.44 -42.11 0.32 0.89 2.10 6.7
20241012 12:54:00 * Metop-A ASCAT 45.0 32.53 -45.26 32.20 -45.71 0.29 0.82 *** ***
20241012 12:09:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20241012 10:05:57 SSMIS-17 85-92GHz 45.0 *** *** *** *** *** *** 1.20 ***
20241012 09:48:50 SSMIS-16 85-92GHz 45.0 *** *** *** *** *** *** 1.30 ***
20241012 07:29:32 SSMIS-18 85-92GHz 45.0 30.56 -46.76 30.93 -46.23 0.62 1.75 0.30 1.5
20241012 01:48:55 GMI 85-92GHz 45.0 *** *** *** *** *** *** 0.30 ***
20241012 01:48:55 GMI 37GHz 45.0 *** *** *** *** *** *** 0.40 ***
20241012 00:33:00 * Metop-A ASCAT 45.0 28.73 -49.04 28.51 -49.23 0.19 0.52 *** ***
20241011 23:48:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20241011 21:39:10 SSMIS-17 85-92GHz 45.0 27.95 -49.20 27.74 -49.38 0.31 0.87 2.20 4.7
20241011 21:21:46 * SSMIS-16 85-92GHz 45.0 27.78 -49.43 27.64 -49.56 0.23 0.66 2.30 9.0
20241011 19:02:41 * SSMIS-18 85-92GHz 45.0 27.15 -49.92 26.87 -50.14 0.22 0.64 1.10 5.5
20241011 15:58:55 GMI 85-92GHz 44.5 *** *** *** *** *** *** 1.30 ***
20241011 15:58:55 * GMI 37GHz 44.5 26.61 -50.54 26.35 -50.72 0.26 0.72 1.00 ***
20241011 12:33:00 Metop-C ASCAT 45.0 *** *** *** *** *** *** *** ***
20241011 10:21:44 * SSMIS-17 85-92GHz 46.4 25.78 -51.14 26.01 -51.04 0.21 0.60 2.80 5.1
20241011 10:04:08 SSMIS-16 85-92GHz 46.6 25.69 -51.16 25.49 -51.24 0.28 0.78 0.80 5.2
20241011 07:45:16 * SSMIS-18 85-92GHz 48.5 25.40 -51.17 25.54 -51.13 0.23 0.64 1.90 7.2
20241011 05:06:14 AMSR2 85-92GHz 50.7 24.91 -51.21 25.00 -51.21 0.37 1.06 1.40 7.0
20241011 05:06:14 AMSR2 37GHz 50.7 24.71 -51.21 24.80 -51.21 0.26 0.72 0.50 ***
20241011 02:28:56 GMI 85-92GHz 52.9 24.50 -51.21 24.53 -51.21 0.20 0.57 1.70 33.1
20241011 02:28:56 GMI 37GHz 52.9 24.35 -51.21 24.38 -51.21 0.26 0.73 0.50 ***
20241011 00:51:00 Metop-A ASCAT 55.0 24.13 -51.19 24.00 -51.19 0.15 0.43 *** ***
20241011 00:06:00 * Metop-C ASCAT 55.0 24.11 -51.21 24.07 -51.21 0.12 0.35 *** ***
20241010 21:52:21 * SSMIS-17 85-92GHz 56.8 23.94 -51.28 23.83 -51.22 0.14 0.39 2.10 28.5
20241010 21:34:29 SSMIS-16 85-92GHz 57.0 23.71 -51.27 23.63 -51.22 0.19 0.55 2.00 14.5
20241010 19:15:12 SSMIS-18 85-92GHz 59.0 23.68 -51.42 23.82 -51.52 0.16 0.44 1.80 22.6
20241010 16:57:43 AMSR2 85-92GHz 64.3 23.33 -50.79 23.41 -50.85 0.17 0.48 1.40 45.2
20241010 16:57:43 AMSR2 37GHz 64.3 23.38 -50.73 23.46 -50.80 0.13 0.36 0.40 ***
20241010 16:38:56 GMI 85-92GHz 65.6 23.34 -50.82 23.46 -50.91 0.15 0.43 1.30 31.7
20241010 16:38:56 * GMI 37GHz 65.6 23.39 -50.71 23.51 -50.80 0.11 0.31 0.40 ***
20241010 07:59:41 * SSMIS-18 85-92GHz 88.3 22.64 -49.97 22.67 -50.05 0.16 0.45 0.30 34.2
20241010 03:13:56 * GMI 85-92GHz 90.0 22.50 -49.58 22.48 -49.52 0.12 0.34 0.20 100.0
20241010 03:13:56 GMI 37GHz 90.0 22.45 -49.69 22.43 -49.63 0.13 0.36 0.30 ***
20241009 19:28:42 * SSMIS-18 85-92GHz 82.5 22.05 -49.07 22.14 -49.11 0.13 0.36 0.20 90.4
20241009 16:14:22 AMSR2 85-92GHz 78.5 21.75 -48.59 21.62 -48.44 0.14 0.40 0.20 100.0
20241009 16:14:22 * AMSR2 37GHz 78.5 21.65 -48.70 21.52 -48.54 0.12 0.33 0.20 ***
20241009 09:09:48 * SSMIS-17 85-92GHz 72.6 21.31 -47.96 21.27 -47.91 0.11 0.32 0.20 100.0
20241009 05:19:22 * AMSR2 85-92GHz 70.0 20.94 -47.63 20.97 -47.69 0.11 0.32 0.30 100.0
20241009 05:19:22 AMSR2 37GHz 70.0 20.84 -47.53 20.87 -47.58 0.15 0.42 0.20 ***
20241009 00:45:00 Metop-C ASCAT 70.0 20.28 -46.88 20.18 -46.76 0.14 0.39 *** ***
20241008 23:54:00 * Metop-A ASCAT 69.9 20.29 -46.74 20.27 -46.73 0.13 0.37 *** ***
20241008 20:37:47 * SSMIS-17 85-92GHz 67.2 20.01 -46.44 20.03 -46.45 0.16 0.45 0.50 90.1
20241008 16:28:55 GMI 85-92GHz 63.7 19.53 -46.10 19.68 -46.28 0.14 0.40 0.40 96.6
20241008 16:28:55 * GMI 37GHz 63.7 19.33 -45.89 19.48 -46.07 0.12 0.35 0.60 ***
20241008 12:42:00 Metop-A ASCAT 60.0 *** *** *** *** *** *** *** ***
20241008 09:24:05 SSMIS-17 85-92GHz 60.0 18.92 -45.11 18.86 -44.96 0.18 0.52 0.80 64.9
20241008 09:05:32 * SSMIS-16 85-92GHz 60.0 18.94 -45.14 18.91 -45.06 0.12 0.33 1.10 91.5
20241008 06:46:57 SSMIS-18 85-92GHz 60.0 18.62 -44.48 18.54 -44.30 0.12 0.35 0.70 100.0
20241008 04:36:57 AMSR2 85-92GHz 61.2 18.23 -44.10 18.32 -44.26 0.17 0.48 0.80 92.5
20241008 04:36:57 * AMSR2 37GHz 61.2 18.23 -43.89 18.32 -44.05 0.10 0.29 0.30 ***
20241008 03:03:55 GMI 85-92GHz 62.4 18.72 -42.91 18.70 -42.87 0.25 0.70 3.00 0.0
20241008 03:03:55 GMI 37GHz 62.4 18.17 -43.59 18.15 -43.55 0.19 0.55 0.90 ***
20241008 00:12:00 * Metop-A ASCAT 65.0 17.68 -42.98 17.63 -42.91 0.15 0.44 *** ***
20241007 20:50:37 SSMIS-17 85-92GHz 67.6 17.14 -42.31 17.12 -42.28 0.26 0.74 1.50 6.2
20241007 20:31:44 SSMIS-16 85-92GHz 67.9 16.98 -42.08 17.02 -42.13 0.24 0.67 1.40 6.1
20241007 18:13:04 * SSMIS-18 85-92GHz 70.0 17.13 -41.36 17.05 -41.28 0.19 0.54 1.60 10.2
20241007 16:24:56 AMSR2 85-92GHz 71.3 16.90 -41.26 17.13 -41.48 0.22 0.63 1.20 11.8
20241007 16:24:56 * AMSR2 37GHz 71.3 16.85 -41.52 17.08 -41.74 0.12 0.34 0.40 ***
20241007 09:19:39 * SSMIS-16 85-92GHz 77.2 15.83 -40.40 15.75 -40.33 0.13 0.36 0.30 97.7
20241007 07:01:20 * SSMIS-18 85-92GHz 80.0 15.38 -40.19 15.23 -40.01 0.12 0.35 0.40 89.4
20241007 03:54:46 AMSR2 85-92GHz 80.0 15.09 -39.61 14.98 -39.41 0.13 0.37 0.20 100.0
20241007 03:54:46 AMSR2 37GHz 80.0 14.79 -39.61 14.68 -39.41 0.14 0.39 0.30 ***
20241007 03:48:55 * GMI 85-92GHz 80.0 15.08 -39.64 14.98 -39.46 0.13 0.36 0.20 100.0
20241007 03:48:55 GMI 37GHz 80.0 14.83 -39.64 14.73 -39.46 0.13 0.38 0.20 ***
20241006 23:45:00 Metop-C ASCAT 80.0 *** *** *** *** *** *** *** ***
20241006 21:03:50 * SSMIS-17 85-92GHz 80.0 14.30 -38.80 14.25 -38.76 0.13 0.37 0.30 93.9
20241006 20:44:06 SSMIS-16 85-92GHz 80.0 14.20 -38.55 14.20 -38.55 0.15 0.43 0.30 66.0
20241006 18:25:40 SSMIS-18 85-92GHz 80.0 13.84 -38.61 13.75 -38.53 0.16 0.46 0.40 54.9
20241006 16:13:55 * GMI 85-92GHz 80.7 13.57 -37.99 13.39 -37.84 0.13 0.36 0.20 99.3
20241006 16:13:55 GMI 37GHz 80.7 13.57 -38.19 13.39 -38.04 0.19 0.53 0.20 ***
20241006 15:41:05 * AMSR2 85-92GHz 80.4 13.52 -37.98 13.40 -37.88 0.12 0.35 0.30 100.0
20241006 15:41:05 AMSR2 37GHz 80.4 12.97 -38.75 12.85 -38.65 0.16 0.46 1.20 ***
20241006 12:39:00 * Metop-C ASCAT 80.0 12.86 -37.81 12.78 -37.73 0.16 0.46 *** ***
20241006 11:45:00 Metop-A ASCAT 79.6 *** *** *** *** *** *** *** ***
20241006 00:06:00 * Metop-C ASCAT 70.0 11.66 -36.61 11.63 -36.57 0.17 0.48 *** ***
20241005 23:12:00 * Metop-A ASCAT 70.0 11.56 -36.55 11.62 -36.62 0.16 0.46 *** ***
20241005 18:38:48 SSMIS-18 85-92GHz 70.0 *** *** *** *** *** *** 0.40 ***
20241005 12:06:00 Metop-C ASCAT 70.0 10.66 -35.31 10.63 -35.28 0.15 0.42 *** ***
20241005 12:06:00 * Metop-A ASCAT 70.0 10.66 -35.31 10.63 -35.28 0.15 0.42 *** ***
20241005 08:27:09 SSMIS-17 85-92GHz 70.0 10.91 -34.90 10.93 -34.93 0.17 0.48 0.40 67.1
20241005 08:06:52 * SSMIS-16 85-92GHz 70.0 10.99 -34.61 11.03 -34.69 0.12 0.35 0.30 87.4
20241005 05:48:55 SSMIS-18 85-92GHz 69.8 10.69 -34.43 10.69 -34.42 0.15 0.43 0.50 77.6
20241005 04:08:05 AMSR2 85-92GHz 68.4 10.52 -34.42 10.47 -34.28 0.14 0.40 0.70 92.8
20241005 04:08:05 AMSR2 37GHz 68.4 10.52 -34.42 10.47 -34.28 0.17 0.47 0.30 ***
20241005 03:38:56 * GMI 85-92GHz 68.0 10.55 -34.26 10.52 -34.18 0.08 0.23 0.50 100.0
20241005 03:38:56 GMI 37GHz 68.0 10.50 -34.37 10.47 -34.28 0.15 0.43 0.30 ***
20241004 19:49:23 * SSMIS-17 85-92GHz 61.5 10.24 -33.23 10.25 -33.32 0.12 0.33 0.30 100.0
20241004 15:52:11 * AMSR2 85-92GHz 58.2 10.05 -32.93 9.98 -32.82 0.19 0.54 0.20 78.9
20241004 15:52:11 AMSR2 37GHz 58.2 9.95 -33.13 9.88 -33.02 0.21 0.59 0.30 ***
20241004 08:41:07 * SSMIS-17 85-92GHz 52.2 9.81 -32.27 9.81 -32.27 0.11 0.31 0.40 91.4
20241004 08:20:24 SSMIS-16 85-92GHz 52.0 9.90 -32.24 9.91 -32.27 0.11 0.32 0.50 91.0
20241004 06:02:46 SSMIS-18 85-92GHz 50.0 9.90 -32.25 9.90 -32.23 0.21 0.58 0.40 64.1
20241004 04:18:55 GMI 85-92GHz 48.6 9.73 -32.15 9.70 -32.27 0.12 0.33 0.50 100.0
20241004 04:18:55 * GMI 37GHz 48.6 9.73 -32.10 9.70 -32.22 0.10 0.29 0.30 ***
20241003 23:54:00 Metop-A ASCAT 45.0 *** *** *** *** *** *** *** ***
20241003 23:06:00 * Metop-C ASCAT 45.0 9.66 -31.87 9.64 -31.93 0.19 0.52 *** ***
20241003 20:03:18 SSMIS-17 85-92GHz 45.0 9.65 -31.61 9.62 -31.67 0.21 0.60 0.50 72.3
20241003 19:42:17 * SSMIS-16 85-92GHz 45.0 9.80 -31.52 9.76 -31.61 0.20 0.57 0.70 70.4
20241003 17:24:44 SSMIS-18 85-92GHz 44.5 9.85 -31.29 9.85 -31.32 0.27 0.78 0.70 28.7
20241003 16:43:55 GMI 85-92GHz 43.9 10.00 -31.27 10.00 -31.37 0.29 0.81 0.80 15.5
20241003 16:43:55 GMI 37GHz 43.9 9.80 -31.22 9.80 -31.32 0.21 0.60 0.50 ***
20241003 15:09:12 AMSR2 85-92GHz 42.6 10.05 -31.05 10.05 -31.01 0.17 0.49 0.90 58.4
20241003 15:09:12 * AMSR2 37GHz 42.6 9.90 -31.10 9.90 -31.06 0.13 0.38 0.50 ***
20241003 12:03:00 * Metop-C ASCAT 40.0 10.00 -30.65 10.00 -30.63 0.14 0.41 *** ***
20241003 06:15:50 * SSMIS-18 85-92GHz 35.0 10.30 -30.32 10.31 -30.29 0.29 0.82 1.00 15.7
20241002 20:17:16 * SSMIS-17 85-92GHz 31.9 10.50 -29.54 10.50 -29.58 0.26 0.73 2.10 14.5
20241002 19:55:45 SSMIS-16 85-92GHz 31.6 10.46 -29.76 10.45 -29.83 0.29 0.83 1.60 16.1
20241002 17:38:01 * SSMIS-18 85-92GHz 30.0 10.30 -29.06 10.30 -29.07 0.26 0.74 0.40 7.8

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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