-- 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
20200813 11:30:00 Geo NearIR 15.0 *** *** *** *** *** *** 1.00 ***
20200813 11:30:00 Geo IR 15.0 *** *** *** *** *** *** 1.00 ***
20200813 08:30:00 Geo Vis 15.0 23.47 128.22 23.47 128.22 0.57 1.62 0.40 ***
20200813 08:30:00 Geo NearIR 15.0 *** *** *** *** *** *** 0.10 ***
20200813 08:30:00 Geo IR 15.0 *** *** *** *** *** *** 0.90 ***
20200813 07:38:43 * SSMIS-18 85-92GHz 15.0 24.23 130.43 24.22 130.25 0.34 0.95 0.20 1.8
20200813 05:30:00 Geo Vis 15.0 *** *** *** *** *** *** 0.40 ***
20200813 05:30:00 Geo NearIR 15.0 *** *** *** *** *** *** 0.60 ***
20200813 05:30:00 Geo IR 15.0 *** *** *** *** *** *** 0.10 ***
20200813 04:29:54 * AMSR2 85-92GHz 15.0 24.27 131.09 24.26 130.88 0.48 1.35 0.10 2.8
20200813 04:29:54 AMSR2 37GHz 15.0 *** *** *** *** *** *** 1.40 ***
20200813 02:30:00 Geo Vis 16.7 *** *** *** *** *** *** 0.10 ***
20200813 02:30:00 Geo NearIR 16.7 *** *** *** *** *** *** 0.10 ***
20200813 02:30:00 Geo IR 16.7 *** *** *** *** *** *** 0.50 ***
20200812 23:30:00 Geo Vis 25.0 *** *** *** *** *** *** 0.60 ***
20200812 23:30:00 Geo NearIR 25.0 24.32 130.18 24.32 130.18 3.36 9.49 0.40 ***
20200812 23:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.60 ***
20200812 21:51:27 * SSMIS-17 85-92GHz 25.0 24.87 132.15 24.94 132.52 0.29 0.83 0.90 2.5
20200812 20:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.80 ***
20200812 20:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.50 ***
20200812 20:21:33 SSMIS-18 85-92GHz 25.0 24.84 132.44 24.83 132.40 0.51 1.43 2.50 1.1
20200812 19:17:11 * SSMIS-16 85-92GHz 25.0 25.04 132.67 24.97 132.36 0.46 1.30 2.80 1.3
20200812 17:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.40 ***
20200812 17:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.10 ***
20200812 14:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.20 ***
20200812 14:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.40 ***
20200812 11:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.40 ***
20200812 11:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.30 ***
20200812 09:21:20 * SSMIS-17 85-92GHz 25.0 25.66 134.52 25.78 134.71 0.42 1.20 2.60 1.9
20200812 08:30:00 Geo Vis 25.0 *** *** *** *** *** *** 0.20 ***
20200812 08:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.80 ***
20200812 08:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.20 ***
20200812 07:51:05 SSMIS-18 85-92GHz 25.0 25.51 134.84 25.43 134.70 0.38 1.07 2.20 2.1
20200812 06:47:02 * SSMIS-16 85-92GHz 25.0 25.86 135.23 25.96 135.50 0.33 0.92 1.70 5.1
20200812 05:30:00 Geo Vis 25.0 25.65 135.70 25.65 135.70 0.40 1.13 0.20 ***
20200812 05:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.90 ***
20200812 05:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.10 ***
20200812 03:47:20 AMSR2 85-92GHz 25.0 26.01 135.86 26.07 136.11 0.37 1.03 0.20 3.5
20200812 03:47:20 * AMSR2 37GHz 25.0 25.81 135.86 25.87 136.11 0.35 0.99 0.30 ***
20200812 02:30:00 Geo Vis 25.0 25.20 136.59 25.20 136.59 3.36 9.49 0.20 ***
20200812 02:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.80 ***
20200812 02:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.30 ***
20200811 23:30:00 Geo Vis 25.0 *** *** *** *** *** *** 0.10 ***
20200811 23:30:00 Geo NearIR 25.0 26.73 135.47 26.73 135.47 3.36 9.49 0.20 ***
20200811 23:30:00 * Geo IR 25.0 24.83 135.33 24.83 135.33 0.51 1.44 0.30 65.2
20200811 22:03:51 SSMIS-17 85-92GHz 25.6 26.82 136.43 26.72 136.18 0.55 1.57 0.70 0.3
20200811 20:30:00 Geo NearIR 25.0 26.39 136.92 26.39 136.92 3.36 9.49 0.10 ***
20200811 20:30:00 Geo IR 25.0 26.52 136.42 26.52 136.42 3.36 9.49 0.20 0.1
20200811 19:29:25 * SSMIS-16 85-92GHz 25.0 26.91 137.17 26.86 136.99 0.28 0.78 1.90 4.5
20200811 17:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.60 ***
20200811 17:30:00 Geo IR 25.0 *** *** *** *** *** *** 1.00 ***
20200811 16:49:39 AMSR2 85-92GHz 25.0 26.65 138.13 26.65 137.94 0.36 1.02 0.80 20.2
20200811 16:49:39 * AMSR2 37GHz 25.0 26.60 138.19 26.60 138.00 0.24 0.68 0.60 ***
20200811 14:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 1.00 ***
20200811 14:30:00 Geo IR 25.0 26.65 139.06 26.65 139.06 0.75 2.11 0.50 4.6
20200811 12:33:00 Metop-B ASCAT 25.0 *** *** *** *** *** *** *** ***
20200811 11:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.30 ***
20200811 11:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.60 ***
20200811 11:18:00 * Metop-A ASCAT 25.0 26.47 139.51 26.46 139.47 0.13 0.37 *** ***
20200811 09:34:40 SSMIS-17 85-92GHz 25.0 *** *** *** *** *** *** 3.00 ***
20200811 08:30:00 Geo Vis 25.0 26.53 140.12 26.53 140.12 0.27 0.75 0.10 ***
20200811 08:30:00 Geo NearIR 25.0 26.50 140.09 26.50 140.09 3.36 9.49 0.60 ***
20200811 08:30:00 Geo IR 25.0 26.58 140.12 26.58 140.12 0.38 1.06 0.70 47.3
20200811 07:00:20 SSMIS-16 85-92GHz 25.0 26.50 140.04 26.47 139.81 0.19 0.54 0.60 10.5
20200811 05:30:00 Geo Vis 25.0 26.75 140.56 26.75 140.56 0.21 0.59 0.30 ***
20200811 05:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.20 ***
20200811 05:30:00 Geo IR 25.0 26.65 140.62 26.65 140.62 0.51 1.44 0.70 4.2
20200811 02:30:00 * Geo Vis 25.0 26.56 141.08 26.56 141.08 0.15 0.43 0.50 ***
20200811 02:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.10 ***
20200811 02:30:00 Geo IR 25.0 26.56 141.20 26.56 141.20 0.38 1.07 0.80 5.1
20200811 00:03:00 Metop-A ASCAT 25.0 *** *** *** *** *** *** *** ***
20200810 23:39:00 Metop-B ASCAT 25.0 *** *** *** *** *** *** *** ***
20200810 23:30:00 * Geo Vis 25.0 26.41 141.74 26.41 141.74 0.30 0.85 0.60 ***
20200810 23:30:00 Geo NearIR 25.0 *** *** *** *** *** *** 0.10 ***
20200810 23:30:00 Geo IR 25.0 26.41 141.80 26.41 141.80 0.90 2.54 0.50 3.8
20200810 20:30:00 Geo Vis 25.0 26.58 142.30 26.58 142.30 3.36 9.49 0.20 ***
20200810 20:30:00 Geo NearIR 25.0 25.83 141.52 25.83 141.52 3.36 9.49 0.30 ***
20200810 20:30:00 Geo IR 25.0 *** *** *** *** *** *** 0.70 ***
20200810 19:04:46 SSMIS-18 85-92GHz 25.0 26.83 142.30 26.89 141.98 0.35 0.98 0.90 52.5
20200810 17:30:00 Geo NearIR 25.4 25.59 143.13 25.59 143.13 3.20 9.05 0.70 ***
20200810 17:30:00 Geo IR 25.4 25.29 142.85 25.29 142.85 3.36 9.49 0.90 28.3
20200810 16:06:41 * AMSR2 85-92GHz 26.6 26.61 143.04 26.64 142.73 0.25 0.70 1.50 30.6
20200810 16:06:41 AMSR2 37GHz 26.6 26.41 143.20 26.44 142.90 0.25 0.71 0.50 ***
20200810 14:30:00 Geo NearIR 27.9 26.26 143.76 26.26 143.76 0.64 1.80 0.20 ***
20200810 14:30:00 Geo IR 27.9 26.31 143.70 26.31 143.70 0.52 1.46 0.40 10.7
20200810 11:30:00 Geo NearIR 30.4 26.29 144.53 26.29 144.53 3.36 9.49 1.00 ***
20200810 11:30:00 Geo IR 30.4 26.31 144.37 26.31 144.37 0.97 2.75 0.60 6.0
20200810 11:12:00 * Metop-B ASCAT 30.7 26.28 144.20 26.29 144.14 0.12 0.34 *** ***
20200810 09:57:00 Metop-A ASCAT 31.7 *** *** *** *** *** *** *** ***
20200810 08:30:00 Geo Vis 32.9 26.20 144.92 26.20 144.92 0.21 0.58 1.00 ***
20200810 08:30:00 Geo NearIR 32.9 *** *** *** *** *** *** 0.20 ***
20200810 08:30:00 Geo IR 32.9 26.23 145.01 26.23 145.01 0.38 1.08 0.60 19.6
20200810 08:06:44 SSMIS-17 85-92GHz 33.2 25.97 145.28 25.98 145.20 0.28 0.78 3.00 0.0
20200810 06:35:31 SSMIS-18 85-92GHz 35.0 26.31 145.15 26.31 145.35 0.31 0.87 1.30 4.0
20200810 05:30:00 * Geo Vis 35.4 26.18 145.47 26.18 145.47 0.21 0.58 0.40 ***
20200810 05:30:00 Geo NearIR 35.4 *** *** *** *** *** *** 0.10 ***
20200810 05:30:00 Geo IR 35.4 26.18 145.47 26.18 145.47 0.51 1.44 0.40 11.0
20200810 03:59:26 AMSR2 85-92GHz 36.7 25.90 145.43 25.90 145.68 0.58 1.65 0.80 2.5
20200810 03:59:26 AMSR2 37GHz 36.7 26.55 145.48 26.55 145.74 0.36 1.03 1.00 ***
20200810 02:30:00 * Geo Vis 37.9 24.38 145.63 24.38 145.63 0.24 0.68 0.70 ***
20200810 02:30:00 Geo NearIR 37.9 *** *** *** *** *** *** 0.30 ***
20200810 02:30:00 Geo IR 37.9 *** *** *** *** *** *** 0.70 ***
20200809 23:30:00 Geo Vis 40.4 25.76 146.54 25.76 146.54 3.36 9.49 0.20 ***
20200809 23:30:00 Geo NearIR 40.4 *** *** *** *** *** *** 0.60 ***
20200809 23:30:00 Geo IR 40.4 *** *** *** *** *** *** 0.50 ***
20200809 22:45:00 * Metop-A ASCAT 41.0 26.22 146.35 26.23 146.25 0.11 0.31 *** ***
20200809 20:49:37 SSMIS-17 85-92GHz 42.6 26.43 146.19 26.42 146.23 0.35 0.98 0.90 6.2
20200809 20:30:00 Geo Vis 42.9 *** *** *** *** *** *** 0.10 ***
20200809 20:30:00 Geo NearIR 42.9 *** *** *** *** *** *** 0.30 ***
20200809 20:30:00 Geo IR 42.9 *** *** *** *** *** *** 0.70 ***
20200809 19:17:04 SSMIS-18 85-92GHz 44.5 *** *** *** *** *** *** 1.30 ***
20200809 18:14:09 * SSMIS-16 85-92GHz 44.9 26.40 147.47 26.40 147.55 0.58 1.64 1.70 0.4
20200809 17:30:00 Geo NearIR 44.2 *** *** *** *** *** *** 0.60 ***
20200809 17:30:00 Geo IR 44.2 *** *** *** *** *** *** 0.30 ***
20200809 14:30:00 Geo NearIR 39.2 25.30 146.48 25.30 146.48 3.36 9.49 0.10 ***
20200809 14:30:00 Geo IR 39.2 *** *** *** *** *** *** 0.20 ***
20200809 11:30:00 * Geo NearIR 35.0 25.90 147.44 25.90 147.44 0.56 1.58 0.10 ***
20200809 11:30:00 Geo IR 35.0 25.75 145.88 25.75 145.88 3.36 9.49 0.10 47.1

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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