-- 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
20200930 18:21:39 SSMIS-18 85-92GHz 35.0 40.84 170.02 40.78 169.54 0.50 1.42 0.90 1.0
20200930 17:30:00 Geo NearIR 35.4 40.13 168.10 40.13 168.10 0.65 1.84 0.30 ***
20200930 17:30:00 Geo IR 35.4 40.23 167.94 40.23 167.94 0.98 2.76 0.40 0.4
20200930 16:59:43 SSMIS-16 85-92GHz 35.8 41.96 168.18 41.98 168.47 0.48 1.36 0.50 1.1
20200930 14:54:40 * AMSR2 85-92GHz 37.6 41.32 168.00 41.29 167.78 0.48 1.36 1.00 0.6
20200930 14:54:40 AMSR2 37GHz 37.6 41.17 167.20 41.14 166.98 0.62 1.77 1.20 ***
20200930 14:30:00 Geo NearIR 37.9 40.29 166.84 40.29 166.84 0.78 2.19 0.40 ***
20200930 14:30:00 Geo IR 37.9 40.16 166.71 40.16 166.71 3.36 9.49 0.30 0.6
20200930 11:30:00 Geo NearIR 40.4 40.10 165.15 40.10 165.15 1.68 4.75 0.80 ***
20200930 11:30:00 Geo IR 40.4 39.97 165.09 39.97 165.09 3.36 9.49 0.80 0.1
20200930 10:21:00 * Metop-B ASCAT 41.4 40.92 165.14 41.05 165.72 0.37 1.05 *** ***
20200930 08:30:00 Geo NearIR 42.9 40.29 163.81 40.29 163.81 1.77 5.00 0.30 ***
20200930 08:30:00 Geo IR 42.9 40.19 163.75 40.19 163.75 3.36 9.49 0.90 0.5
20200930 06:55:16 * SSMIS-17 85-92GHz 44.2 40.63 164.17 40.43 163.54 0.30 0.85 0.40 4.9
20200930 06:00:53 SSMIS-18 85-92GHz 45.0 40.60 163.43 40.53 163.21 0.36 1.02 0.60 4.2
20200930 05:30:00 Geo Vis 45.6 *** *** *** *** *** *** 0.80 ***
20200930 05:30:00 Geo NearIR 45.6 39.58 162.35 39.58 162.35 3.36 9.49 0.10 ***
20200930 05:30:00 Geo IR 45.6 39.60 162.26 39.60 162.26 3.36 9.49 0.30 0.6
20200930 04:38:43 SSMIS-16 85-92GHz 46.5 40.48 162.91 40.63 163.27 0.41 1.15 0.40 2.3
20200930 02:55:44 AMSR2 85-92GHz 48.4 *** *** *** *** *** *** 3.00 ***
20200930 02:55:44 AMSR2 37GHz 48.4 39.89 161.25 39.80 161.09 0.20 0.58 2.60 ***
20200930 02:30:00 * Geo Vis 48.9 39.88 161.02 39.88 161.02 0.17 0.49 0.80 ***
20200930 02:30:00 Geo NearIR 48.9 39.65 161.18 39.65 161.18 3.36 9.49 0.10 ***
20200930 02:30:00 Geo IR 48.9 40.60 162.94 40.60 162.94 2.08 5.88 0.20 42.8
20200930 00:10:18 GMI 85-92GHz 51.5 *** *** *** *** *** *** 2.50 ***
20200930 00:10:18 GMI 37GHz 51.5 39.21 160.02 39.06 159.77 0.38 1.08 2.10 ***
20200929 23:30:00 Geo Vis 52.2 39.61 160.03 39.61 160.03 2.35 6.64 0.50 ***
20200929 23:30:00 Geo NearIR 52.2 40.01 161.26 40.01 161.26 1.50 4.25 0.10 ***
20200929 23:30:00 Geo IR 52.2 39.86 161.19 39.86 161.19 3.36 9.49 0.10 3.2
20200929 23:00:00 * Metop-B ASCAT 52.8 39.49 160.10 39.61 160.29 0.15 0.43 *** ***
20200929 21:45:00 Metop-A ASCAT 54.2 39.06 159.44 38.80 158.94 0.20 0.56 *** ***
20200929 20:30:00 Geo Vis 55.0 *** *** *** *** *** *** 0.10 ***
20200929 20:30:00 Geo NearIR 55.0 39.17 160.03 39.17 160.03 1.44 4.06 0.30 ***
20200929 20:30:00 Geo IR 55.0 39.20 159.87 39.20 159.87 0.99 2.80 0.10 -0.5
20200929 18:35:36 SSMIS-18 85-92GHz 54.5 38.64 158.40 38.40 158.01 0.22 0.62 0.40 63.3
20200929 17:30:00 Geo NearIR 55.8 38.39 158.25 38.39 158.25 0.55 1.57 0.10 ***
20200929 17:30:00 Geo IR 55.8 38.44 158.28 38.44 158.28 0.81 2.28 0.20 12.2
20200929 15:51:25 * AMSR2 85-92GHz 58.6 37.79 157.44 37.45 157.03 0.18 0.50 0.20 90.4
20200929 15:51:25 AMSR2 37GHz 58.6 37.39 157.19 37.05 156.78 0.47 1.34 0.60 ***
20200929 14:30:00 Geo NearIR 60.8 37.70 157.18 37.70 157.18 0.40 1.13 0.20 ***
20200929 14:30:00 Geo IR 60.8 37.60 157.12 37.60 157.12 0.68 1.92 0.30 6.4
20200929 11:30:00 Geo NearIR 65.0 36.61 156.21 36.61 156.21 0.91 2.57 0.10 ***
20200929 11:30:00 Geo IR 65.0 36.54 156.42 36.54 156.42 0.72 2.03 0.10 12.6
20200929 09:27:00 * Metop-A ASCAT 65.0 35.91 155.42 35.64 155.21 0.15 0.42 *** ***
20200929 08:30:00 Geo NearIR 65.0 35.87 155.68 35.87 155.68 3.36 9.49 0.20 ***
20200929 08:30:00 Geo IR 65.0 35.62 155.74 35.62 155.74 1.05 2.97 0.10 10.5
20200929 06:11:50 SSMIS-18 85-92GHz 65.0 34.86 155.75 34.64 155.62 0.34 0.97 2.20 4.7
20200929 05:30:00 * Geo Vis 64.6 34.33 153.06 34.33 153.06 0.30 0.85 0.30 ***
20200929 05:30:00 Geo NearIR 64.6 34.68 155.12 34.68 155.12 0.60 1.71 0.10 ***
20200929 05:30:00 Geo IR 64.6 34.68 155.18 34.68 155.18 0.50 1.42 0.30 11.7
20200929 04:50:19 SSMIS-16 85-92GHz 64.0 *** *** *** *** *** *** 3.00 ***
20200929 02:30:00 Geo Vis 62.1 *** *** *** *** *** *** 0.60 ***
20200929 02:30:00 Geo NearIR 62.1 *** *** *** *** *** *** 0.30 ***
20200929 02:30:00 Geo IR 62.1 33.49 154.55 33.49 154.55 2.41 6.80 0.10 4.3
20200929 01:00:18 * GMI 85-92GHz 60.0 33.14 154.18 33.71 154.41 0.19 0.54 0.40 69.3
20200929 01:00:18 GMI 37GHz 60.0 32.99 154.30 33.56 154.53 0.62 1.76 0.20 ***
20200928 23:30:00 Geo Vis 59.2 *** *** *** *** *** *** 0.80 ***
20200928 23:30:00 Geo NearIR 59.2 *** *** *** *** *** *** 0.90 ***
20200928 23:30:00 Geo IR 59.2 *** *** *** *** *** *** 0.70 ***
20200928 23:21:00 Metop-B ASCAT 58.9 *** *** *** *** *** *** *** ***
20200928 22:09:00 * Metop-A ASCAT 56.9 32.06 153.69 32.58 153.84 0.14 0.39 *** ***
20200928 20:30:00 Geo Vis 54.2 *** *** *** *** *** *** 0.70 ***
20200928 20:30:00 Geo NearIR 54.2 31.27 153.79 31.27 153.79 3.36 9.49 0.40 ***
20200928 20:30:00 Geo IR 54.2 31.12 153.65 31.12 153.65 1.03 2.92 0.10 6.5
20200928 18:50:26 * SSMIS-18 85-92GHz 51.4 30.97 153.57 30.55 153.46 0.12 0.33 0.40 100.0
20200928 17:30:00 Geo NearIR 49.6 30.53 153.95 30.53 153.95 0.72 2.05 0.10 ***
20200928 17:30:00 Geo IR 49.6 30.38 153.60 30.38 153.60 0.51 1.45 0.40 3.8
20200928 15:10:43 * AMSR2 85-92GHz 47.6 29.87 153.19 29.70 153.13 0.11 0.32 0.30 100.0
20200928 15:10:43 AMSR2 37GHz 47.6 29.72 153.30 29.55 153.25 0.14 0.39 0.20 ***
20200928 14:30:00 Geo NearIR 47.1 29.67 153.63 29.67 153.63 0.71 2.00 0.70 ***
20200928 14:30:00 Geo IR 47.1 29.67 153.28 29.67 153.28 3.36 9.49 0.10 0.3
20200928 11:30:00 Geo NearIR 45.0 28.58 152.62 28.58 152.62 1.70 4.80 0.10 ***
20200928 11:30:00 Geo IR 45.0 29.18 151.50 29.18 151.50 3.36 9.49 0.10 3.9
20200928 09:45:00 * Metop-A ASCAT 45.0 28.83 152.66 28.67 152.68 0.24 0.68 *** ***
20200928 08:30:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.60 ***
20200928 08:30:00 Geo IR 45.0 *** *** *** *** *** *** 0.70 ***
20200928 06:22:45 SSMIS-18 85-92GHz 45.0 28.49 153.09 28.34 153.12 0.52 1.47 1.90 2.2
20200928 05:30:00 Geo Vis 44.6 *** *** *** *** *** *** 0.10 ***
20200928 05:30:00 Geo NearIR 44.6 28.28 155.05 28.28 155.05 1.35 3.81 1.00 ***
20200928 05:30:00 Geo IR 44.6 28.01 155.30 28.01 155.30 3.36 9.49 0.60 10.0
20200928 02:30:00 Geo Vis 42.1 27.22 154.20 27.22 154.20 1.24 3.52 0.20 ***
20200928 02:30:00 Geo NearIR 42.1 25.77 153.78 25.77 153.78 1.43 4.03 1.00 ***
20200928 02:30:00 Geo IR 42.1 25.37 153.36 25.37 153.36 3.36 9.49 0.20 3.6
20200927 23:45:00 * Metop-B ASCAT 39.8 26.64 153.94 26.58 153.98 0.12 0.35 *** ***
20200927 23:30:00 Geo Vis 39.6 25.30 154.42 25.30 154.42 0.40 1.14 0.10 ***
20200927 23:30:00 Geo NearIR 39.6 25.07 154.62 25.07 154.62 0.86 2.44 0.50 ***
20200927 23:30:00 Geo IR 39.6 *** *** *** *** *** *** 0.80 ***
20200927 20:30:00 Geo Vis 37.1 24.89 155.39 24.89 155.39 1.00 2.84 0.10 ***
20200927 20:30:00 Geo NearIR 37.1 *** *** *** *** *** *** 0.70 ***
20200927 20:30:00 Geo IR 37.1 24.14 154.73 24.14 154.73 3.36 9.49 0.10 1.7
20200927 20:00:52 SSMIS-17 85-92GHz 36.7 *** *** *** *** *** *** 3.00 ***
20200927 19:04:16 * SSMIS-18 85-92GHz 35.4 24.89 154.67 25.29 154.27 0.41 1.15 1.60 5.4
20200927 17:43:55 SSMIS-16 85-92GHz 35.0 25.33 155.61 25.26 155.66 0.55 1.56 0.50 1.0
20200927 17:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 1.00 ***
20200927 17:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.50 ***
20200927 14:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.80 ***
20200927 14:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.90 ***
20200927 11:30:00 Geo NearIR 34.6 *** *** *** *** *** *** 0.90 ***
20200927 11:30:00 Geo IR 34.6 *** *** *** *** *** *** 0.80 ***
20200927 11:18:00 * Metop-B ASCAT 34.4 23.32 156.51 23.38 156.47 0.15 0.42 *** ***
20200927 10:55:19 GMI 85-92GHz 34.1 *** *** *** *** *** *** 3.00 ***
20200927 10:55:19 GMI 37GHz 34.1 *** *** *** *** *** *** 3.00 ***
20200927 10:03:00 Metop-A ASCAT 33.4 22.73 156.89 23.14 156.63 0.18 0.50 *** ***
20200927 08:30:00 Geo NearIR 32.1 *** *** *** *** *** *** 0.60 ***
20200927 08:30:00 Geo IR 32.1 *** *** *** *** *** *** 0.70 ***
20200927 07:30:06 SSMIS-17 85-92GHz 31.3 22.16 157.42 22.43 157.24 0.44 1.24 2.40 2.1
20200927 05:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.10 ***
20200927 05:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 0.30 ***
20200927 05:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.90 ***
20200927 05:12:44 * SSMIS-16 85-92GHz 30.0 21.55 158.05 21.61 157.99 0.38 1.08 0.60 3.7
20200927 02:30:00 Geo Vis 30.0 *** *** *** *** *** *** 0.30 ***
20200927 02:30:00 Geo NearIR 30.0 *** *** *** *** *** *** 1.00 ***
20200927 02:30:00 Geo IR 30.0 *** *** *** *** *** *** 0.60 ***
20200926 23:30:00 Geo Vis 29.6 *** *** *** *** *** *** 0.40 ***
20200926 23:30:00 Geo NearIR 29.6 *** *** *** *** *** *** 1.00 ***
20200926 23:30:00 Geo IR 29.6 *** *** *** *** *** *** 1.00 ***
20200926 22:27:00 Metop-B ASCAT 28.7 *** *** *** *** *** *** *** ***
20200926 20:30:00 Geo Vis 27.1 *** *** *** *** *** *** 0.10 ***
20200926 20:30:00 Geo NearIR 27.1 20.24 159.37 20.24 159.37 1.39 3.92 0.50 ***
20200926 20:30:00 Geo IR 27.1 20.26 159.42 20.26 159.42 1.71 4.85 0.10 47.2
20200926 20:15:25 * SSMIS-17 85-92GHz 26.9 20.14 158.81 20.16 158.78 0.53 1.51 2.50 1.5
20200926 17:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.10 ***
20200926 17:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.90 ***

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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