-- 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
20251015 08:57:00 Metop-A ASCAT 61.3 36.23 169.45 36.20 169.21 3.36 9.49 *** ***
20251015 01:58:37 AMSR2 85-92GHz 64.2 34.93 165.18 34.95 165.46 0.43 1.21 2.90 0.4
20251015 01:58:37 AMSR2 37GHz 64.2 *** *** *** *** *** *** 2.80 ***
20251015 01:23:26 * GMI 85-92GHz 64.4 34.91 164.86 34.95 165.46 0.35 0.98 3.00 2.5
20251015 01:23:26 GMI 37GHz 64.4 *** *** *** *** *** *** 1.80 ***
20251014 14:56:11 * AMSR2 85-92GHz 70.0 35.10 158.99 35.08 158.74 0.30 0.83 2.00 1.3
20251014 14:56:11 AMSR2 37GHz 70.0 *** *** *** *** *** *** 1.80 ***
20251014 10:06:00 * Metop-C ASCAT 70.0 35.08 156.32 35.18 157.10 0.34 0.96 *** ***
20251014 10:03:00 Metop-C ASCAT 70.0 35.07 156.29 35.18 157.10 0.34 0.97 *** ***
20251014 02:03:26 * GMI 85-92GHz 63.4 34.79 152.35 34.80 152.62 0.12 0.35 0.70 100.0
20251014 02:03:26 GMI 37GHz 63.4 34.84 152.23 34.85 152.50 0.14 0.41 0.30 ***
20251014 00:24:00 Metop-C ASCAT 60.0 34.87 151.08 34.83 150.56 0.21 0.60 *** ***
20251013 15:52:05 AMSR2 85-92GHz 61.8 34.43 147.18 34.46 146.66 0.26 0.74 0.50 43.9
20251013 15:52:05 * AMSR2 37GHz 61.8 34.28 146.76 34.31 146.23 0.12 0.35 0.50 ***
20251013 12:06:00 Metop-C ASCAT 65.0 *** *** *** *** *** *** *** ***
20251013 11:18:00 * Metop-A ASCAT 65.0 34.00 144.79 34.01 144.87 0.25 0.69 *** ***
20251013 06:18:06 * SSMIS-18 85-92GHz 65.0 33.23 143.05 33.15 142.71 0.13 0.36 0.90 75.0
20251013 03:49:07 AMSR2 85-92GHz 68.6 33.26 141.98 33.11 141.41 0.14 0.40 1.30 77.3
20251013 03:49:07 * AMSR2 37GHz 68.6 33.36 141.80 33.21 141.23 0.12 0.33 0.20 ***
20251013 00:48:00 * Metop-C ASCAT 73.7 32.95 140.60 32.78 140.12 0.19 0.53 *** ***
20251012 18:57:49 SSMIS-18 85-92GHz 70.0 32.39 138.67 32.22 138.21 0.18 0.50 1.50 74.5
20251012 18:33:27 * GMI 85-92GHz 70.0 32.40 138.83 32.29 138.50 0.14 0.41 2.00 93.5
20251012 18:33:27 GMI 37GHz 70.0 32.15 138.42 32.04 138.09 0.17 0.48 0.40 ***
20251012 16:48:06 AMSR2 85-92GHz 69.0 32.00 137.74 32.06 137.96 0.21 0.59 1.00 44.7
20251012 16:48:06 * AMSR2 37GHz 69.0 31.85 137.86 31.91 138.08 0.13 0.36 0.80 ***
20251012 06:31:02 SSMIS-18 85-92GHz 60.0 *** *** *** *** *** *** 0.40 ***
20251012 04:43:57 * AMSR2 85-92GHz 60.0 30.80 134.86 30.90 135.18 0.13 0.38 0.30 100.0
20251012 04:43:57 AMSR2 37GHz 60.0 30.65 134.69 30.75 135.01 0.22 0.63 0.40 ***
20251012 01:09:00 Metop-C ASCAT 60.0 *** *** *** *** *** *** *** ***
20251011 22:08:01 SSMIS-17 85-92GHz 58.4 *** *** *** *** *** *** 0.70 ***
20251011 19:12:31 * SSMIS-18 85-92GHz 56.0 29.65 132.60 29.82 132.73 0.14 0.39 0.50 96.3
20251011 12:48:00 * Metop-C ASCAT 46.3 28.74 131.54 28.58 131.47 0.12 0.33 *** ***
20251011 06:45:01 SSMIS-18 85-92GHz 35.6 *** *** *** *** *** *** 2.80 ***
20251011 04:00:19 AMSR2 85-92GHz 35.0 27.32 130.88 27.46 131.09 0.23 0.66 0.80 8.8
20251011 04:00:19 * AMSR2 37GHz 35.0 27.37 130.65 27.51 130.87 0.19 0.53 0.30 ***
20251011 01:30:00 * Metop-C ASCAT 35.0 27.34 130.30 27.42 130.43 0.12 0.33 *** ***
20251011 00:42:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20251010 19:27:37 * SSMIS-18 85-92GHz 38.8 27.14 130.19 27.22 130.12 0.32 0.90 2.60 8.4
20251010 17:02:19 AMSR2 85-92GHz 39.2 *** *** *** *** *** *** 3.00 ***
20251010 17:02:19 * AMSR2 37GHz 39.2 27.00 130.33 27.02 130.31 0.28 0.78 1.00 ***
20251010 13:06:00 Metop-C ASCAT 35.0 *** *** *** *** *** *** *** ***
20251010 12:18:00 * Metop-A ASCAT 35.0 26.55 130.90 26.57 130.95 0.15 0.43 *** ***
20251010 06:58:36 * SSMIS-18 85-92GHz 35.0 27.24 131.66 27.28 131.89 0.47 1.31 3.00 1.1
20251010 04:55:25 * AMSR2 85-92GHz 35.0 27.19 131.98 27.21 131.88 0.40 1.13 0.90 11.8
20251010 04:55:25 AMSR2 37GHz 35.0 *** *** *** *** *** *** 0.70 ***
20251010 04:53:26 GMI 85-92GHz 35.0 *** *** *** *** *** *** 3.00 ***
20251010 04:53:26 GMI 37GHz 35.0 *** *** *** *** *** *** 3.00 ***
20251010 01:03:00 Metop-A ASCAT 35.0 *** *** *** *** *** *** *** ***
20251009 21:49:51 SSMIS-16 85-92GHz 35.0 26.91 133.82 26.70 134.12 0.43 1.22 1.00 5.2
20251009 20:56:26 * SSMIS-17 85-92GHz 35.0 26.68 133.64 26.61 133.73 0.35 1.00 3.00 4.2
20251009 19:41:47 * SSMIS-18 85-92GHz 35.0 26.48 133.47 26.61 133.30 0.41 1.15 3.00 4.4
20251009 19:03:26 GMI 85-92GHz 35.0 26.22 133.69 26.46 133.41 0.47 1.32 2.70 2.5
20251009 19:03:26 GMI 37GHz 35.0 *** *** *** *** *** *** 1.40 ***
20251009 11:48:00 * Metop-C ASCAT 35.0 24.73 134.27 24.69 134.29 0.11 0.32 *** ***
20251009 11:45:00 Metop-C ASCAT 35.0 24.73 134.27 24.70 134.29 0.12 0.33 *** ***
20251009 07:11:39 SSMIS-18 85-92GHz 35.0 24.23 134.64 24.35 134.52 0.28 0.78 2.50 9.9
20251009 05:38:26 * GMI 85-92GHz 35.3 24.05 135.02 24.03 135.03 0.23 0.65 2.90 14.5
20251009 05:38:26 GMI 37GHz 35.3 24.00 134.85 23.98 134.87 0.30 0.84 0.30 ***
20251009 04:11:19 AMSR2 85-92GHz 36.5 23.70 135.29 23.93 135.11 0.33 0.95 2.50 5.6
20251009 04:11:19 AMSR2 37GHz 36.5 23.80 135.07 24.03 134.89 0.31 0.88 0.30 ***
20251008 23:45:00 * Metop-A ASCAT 40.0 22.96 135.51 22.91 135.54 0.12 0.33 *** ***
20251008 11:18:00 * Metop-A ASCAT 33.8 20.56 137.15 20.61 137.11 0.15 0.42 *** ***

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

This page automatically updates every 5 minutes