-- 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
20201117 17:30:00 Geo NearIR 30.3 -19.74 71.52 -19.74 71.52 1.72 4.86 0.60 ***
20201117 17:30:00 Geo IR 30.3 -19.72 71.41 -19.72 71.41 3.36 9.49 0.60 4.0
20201117 15:42:00 Metop-A ASCAT 31.3 *** *** *** *** *** *** *** ***
20201117 14:31:46 SSMIS-17 85-92GHz 31.9 *** *** *** *** *** *** 1.80 ***
20201117 14:30:00 Geo NearIR 31.9 -19.02 72.08 -19.02 72.08 1.20 3.40 0.10 ***
20201117 14:30:00 Geo IR 31.9 -18.82 71.80 -18.82 71.80 3.19 9.02 0.10 0.9
20201117 14:10:19 GMI 85-92GHz 32.1 *** *** *** *** *** *** 1.80 ***
20201117 14:10:19 * GMI 37GHz 32.1 -18.36 71.48 -18.39 71.45 0.42 1.18 1.90 ***
20201117 12:31:18 SSMIS-18 85-92GHz 33.0 -18.63 72.00 -18.51 72.07 0.53 1.49 3.00 0.0
20201117 11:30:00 Geo Vis 33.6 -18.59 72.10 -18.59 72.10 0.39 1.10 0.80 ***
20201117 11:30:00 Geo NearIR 33.6 -16.66 72.86 -16.66 72.86 1.68 4.74 0.10 ***
20201117 11:30:00 Geo IR 33.6 *** *** *** *** *** *** 0.10 ***
20201117 09:14:41 AMSR2 85-92GHz 34.9 -17.03 71.44 -16.95 71.49 0.36 1.02 1.50 2.6
20201117 09:14:41 * AMSR2 37GHz 34.9 -17.33 71.75 -17.25 71.80 0.27 0.77 0.50 ***
20201117 08:30:00 Geo Vis 35.0 *** *** *** *** *** *** 1.00 ***
20201117 08:30:00 Geo NearIR 35.0 -16.72 73.03 -16.72 73.03 0.48 1.35 0.20 ***
20201117 08:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.10 ***
20201117 05:30:00 Geo Vis 35.4 *** *** *** *** *** *** 0.10 ***
20201117 05:30:00 Geo NearIR 35.4 *** *** *** *** *** *** 1.00 ***
20201117 05:30:00 Geo IR 35.4 *** *** *** *** *** *** 1.00 ***
20201117 03:12:00 * Metop-A ASCAT 37.3 -16.82 71.72 -16.79 71.73 0.14 0.39 *** ***
20201117 02:30:00 Geo Vis 37.9 -17.07 72.10 -17.07 72.10 0.94 2.65 1.00 ***
20201117 02:30:00 Geo NearIR 37.9 *** *** *** *** *** *** 0.40 ***
20201117 02:30:00 Geo IR 37.9 *** *** *** *** *** *** 0.10 ***
20201117 01:57:24 SSMIS-17 85-92GHz 38.4 -16.42 71.69 -16.44 71.68 0.36 1.03 2.20 1.7
20201116 23:56:31 SSMIS-18 85-92GHz 40.0 -16.36 71.97 -16.35 71.98 0.29 0.82 1.60 2.4
20201116 23:30:00 * Geo NearIR 40.4 -17.87 73.18 -17.87 73.18 0.24 0.69 0.80 ***
20201116 23:30:00 Geo IR 40.4 -16.45 72.05 -16.45 72.05 3.36 9.49 0.30 8.0
20201116 21:02:26 AMSR2 85-92GHz 42.5 -16.53 71.90 -16.52 71.91 0.33 0.94 1.60 4.0
20201116 21:02:26 * AMSR2 37GHz 42.5 -16.98 72.16 -16.97 72.17 0.25 0.70 2.50 ***
20201116 20:30:00 Geo NearIR 42.9 *** *** *** *** *** *** 0.10 ***
20201116 20:30:00 Geo IR 42.9 *** *** *** *** *** *** 0.20 ***
20201116 17:30:00 Geo NearIR 45.8 *** *** *** *** *** *** 0.90 ***
20201116 17:30:00 Geo IR 45.8 -18.06 72.81 -18.06 72.81 0.64 1.82 0.10 0.5
20201116 17:18:00 * Metop-B ASCAT 46.2 -16.27 71.93 -16.28 71.92 0.15 0.43 *** ***
20201116 16:03:00 * Metop-A ASCAT 48.3 -16.19 71.92 -16.22 71.88 0.18 0.50 *** ***
20201116 14:30:00 Geo NearIR 50.8 -17.52 72.66 -17.52 72.66 0.31 0.89 0.10 ***
20201116 14:30:00 Geo IR 50.8 -17.47 72.29 -17.47 72.29 0.86 2.43 0.10 -0.2
20201116 11:30:00 Geo Vis 55.8 -17.60 71.76 -17.60 71.76 0.66 1.88 0.90 ***
20201116 11:30:00 Geo NearIR 55.8 -17.70 72.57 -17.70 72.57 0.54 1.53 1.00 ***
20201116 11:30:00 Geo IR 55.8 -17.15 72.15 -17.15 72.15 1.07 3.03 0.10 4.5
20201116 08:31:56 AMSR2 85-92GHz 60.8 -16.54 72.23 -16.54 72.23 0.55 1.54 0.30 2.3
20201116 08:31:56 AMSR2 37GHz 60.8 -16.24 72.12 -16.24 72.12 0.26 0.72 0.30 ***
20201116 08:30:00 * Geo Vis 60.8 -17.49 72.41 -17.49 72.41 0.19 0.54 0.40 ***
20201116 08:30:00 Geo NearIR 60.8 -17.51 72.54 -17.51 72.54 1.88 5.30 0.90 ***
20201116 08:30:00 Geo IR 60.8 -17.94 72.10 -17.94 72.10 0.65 1.83 0.10 23.2
20201116 05:30:00 * Geo Vis 65.0 -16.83 72.57 -16.83 72.57 0.11 0.32 0.30 ***
20201116 05:30:00 Geo NearIR 65.0 -16.98 72.41 -16.98 72.41 0.27 0.77 0.10 ***
20201116 05:30:00 Geo IR 65.0 -16.10 72.18 -16.10 72.18 1.36 3.86 1.00 -1.0
20201116 04:48:00 Metop-B ASCAT 65.0 -15.72 72.28 -15.78 72.24 0.19 0.53 *** ***
20201116 03:35:18 GMI 85-92GHz 65.0 -16.00 72.42 -15.83 72.50 0.23 0.64 0.40 82.4
20201116 03:35:18 GMI 37GHz 65.0 -16.35 72.52 -16.18 72.60 0.19 0.53 0.20 ***
20201116 02:30:00 * Geo Vis 65.0 -16.02 72.42 -16.02 72.42 0.13 0.36 0.10 ***
20201116 02:30:00 Geo NearIR 65.0 -16.69 72.66 -16.69 72.66 1.10 3.10 0.80 ***
20201116 02:30:00 Geo IR 65.0 -15.77 72.35 -15.77 72.35 0.19 0.55 0.10 3.1
20201116 00:08:44 * SSMIS-18 85-92GHz 65.0 -15.62 72.68 -15.48 72.73 0.10 0.28 0.40 100.0
20201115 23:30:00 Geo NearIR 65.0 -15.73 73.43 -15.73 73.43 0.54 1.52 0.30 ***
20201115 23:30:00 Geo IR 65.0 -15.36 72.86 -15.36 72.86 0.34 0.97 0.10 68.4
20201115 20:30:00 Geo NearIR 65.0 -15.15 72.98 -15.15 72.98 0.60 1.70 0.10 ***
20201115 20:30:00 Geo IR 65.0 -14.43 72.78 -14.43 72.78 0.27 0.76 0.30 9.3
20201115 20:18:51 * AMSR2 85-92GHz 65.0 -14.94 72.71 -14.98 72.70 0.09 0.25 0.80 100.0
20201115 20:18:51 AMSR2 37GHz 65.0 -14.79 72.87 -14.83 72.85 0.15 0.41 0.30 ***
20201115 17:30:00 Geo NearIR 64.8 -15.19 73.51 -15.19 73.51 0.51 1.43 0.10 ***
20201115 17:30:00 Geo IR 64.8 -14.46 73.23 -14.46 73.23 0.21 0.59 0.30 12.4
20201115 14:30:00 Geo NearIR 63.5 -14.90 72.96 -14.90 72.96 0.76 2.15 0.10 ***
20201115 14:30:00 Geo IR 63.5 -14.20 73.40 -14.20 73.40 0.25 0.71 0.30 4.2
20201115 11:30:00 Geo Vis 62.3 -14.15 73.24 -14.15 73.24 0.38 1.08 0.10 ***
20201115 11:30:00 Geo NearIR 62.3 -14.73 73.78 -14.73 73.78 2.18 6.16 0.40 ***
20201115 11:30:00 * Geo IR 62.3 -13.55 73.68 -13.55 73.68 0.15 0.43 0.10 5.7
20201115 11:19:42 SSMIS-16 85-92GHz 62.2 -13.73 73.54 -13.75 73.52 0.28 0.79 0.30 41.4
20201115 08:30:00 Geo Vis 61.0 -13.48 73.53 -13.48 73.53 0.25 0.72 0.60 ***
20201115 08:30:00 Geo NearIR 61.0 -14.08 74.02 -14.08 74.02 1.19 3.38 0.40 ***
20201115 08:30:00 Geo IR 61.0 -12.93 73.84 -12.93 73.84 0.28 0.80 0.10 5.3
20201115 05:30:00 Geo Vis 59.6 -12.81 74.04 -12.81 74.04 0.17 0.48 0.90 ***
20201115 05:30:00 Geo NearIR 59.6 -13.03 74.45 -13.03 74.45 1.11 3.13 0.20 ***
20201115 05:30:00 Geo IR 59.6 -12.76 74.40 -12.76 74.40 0.30 0.85 0.60 10.2
20201115 03:51:00 * Metop-A ASCAT 58.2 -12.25 74.38 -12.05 74.50 0.15 0.42 *** ***
20201115 02:30:00 Geo Vis 57.1 -12.40 74.94 -12.40 74.94 0.30 0.84 1.00 ***
20201115 02:30:00 Geo NearIR 57.1 -11.65 72.97 -11.65 72.97 0.71 2.02 0.30 ***
20201115 02:30:00 Geo IR 57.1 -11.68 74.71 -11.68 74.71 0.26 0.73 0.10 2.1
20201114 23:30:00 Geo NearIR 55.0 -11.00 73.86 -11.00 73.86 1.33 3.77 0.10 ***
20201114 23:30:00 Geo IR 55.0 -11.23 74.73 -11.23 74.73 0.20 0.55 0.10 10.3
20201114 22:42:23 * SSMIS-16 85-92GHz 55.0 -11.34 74.89 -11.50 74.73 0.12 0.35 1.90 62.9
20201114 20:30:00 Geo NearIR 55.0 -11.31 75.60 -11.31 75.60 3.36 9.49 0.10 ***
20201114 20:30:00 Geo IR 55.0 -11.14 75.29 -11.14 75.29 0.38 1.09 0.90 11.4
20201114 17:30:00 Geo NearIR 54.6 -10.77 75.66 -10.77 75.66 0.36 1.00 0.20 ***
20201114 17:30:00 Geo IR 54.6 -10.37 75.66 -10.37 75.66 0.40 1.12 0.20 7.4
20201114 15:15:19 GMI 85-92GHz 52.7 *** *** *** *** *** *** 0.80 ***
20201114 15:15:19 GMI 37GHz 52.7 -10.34 76.27 -10.22 76.39 0.17 0.49 3.00 ***
20201114 15:06:00 Metop-A ASCAT 52.6 -9.87 76.50 -9.77 76.59 0.17 0.49 *** ***
20201114 14:30:00 Geo NearIR 52.1 -10.22 76.04 -10.22 76.04 0.17 0.49 0.20 ***
20201114 14:30:00 * Geo IR 52.1 -10.29 76.09 -10.29 76.09 0.09 0.26 0.10 12.5
20201114 13:32:40 SSMIS-17 85-92GHz 51.3 -9.91 76.31 -10.06 76.16 0.25 0.70 0.20 33.4
20201114 11:33:30 SSMIS-16 85-92GHz 49.6 -9.88 76.83 -9.87 76.84 0.14 0.40 3.00 14.4
20201114 11:30:17 * SSMIS-18 85-92GHz 49.6 -9.77 76.94 -9.77 76.94 0.14 0.38 3.00 12.1
20201114 11:30:00 Geo Vis 49.6 -9.84 76.89 -9.84 76.89 0.18 0.51 0.80 ***
20201114 11:30:00 Geo NearIR 49.6 -9.77 77.07 -9.77 77.07 0.35 0.98 0.90 ***
20201114 11:30:00 Geo IR 49.6 -9.82 76.99 -9.82 76.99 3.36 9.49 0.10 0.3
20201114 08:46:06 AMSR2 85-92GHz 47.3 -8.87 77.94 -8.82 78.00 0.38 1.08 0.20 44.4
20201114 08:46:06 AMSR2 37GHz 47.3 -9.17 77.48 -9.12 77.54 0.19 0.54 0.20 ***
20201114 08:30:00 Geo Vis 47.1 -8.95 77.74 -8.95 77.74 0.19 0.54 0.10 ***
20201114 08:30:00 Geo NearIR 47.1 -9.12 77.92 -9.12 77.92 0.42 1.18 0.30 ***
20201114 08:30:00 * Geo IR 47.1 -8.75 78.05 -8.75 78.05 0.15 0.44 0.10 2.6
20201114 05:30:00 * Geo Vis 45.0 -8.16 78.44 -8.16 78.44 0.14 0.39 0.10 ***
20201114 05:30:00 Geo NearIR 45.0 -6.81 77.76 -6.81 77.76 0.70 1.97 0.10 ***
20201114 05:30:00 Geo IR 45.0 -7.89 78.44 -7.89 78.44 0.22 0.62 0.40 2.3
20201114 03:45:19 GMI 85-92GHz 45.0 -8.14 78.66 -7.90 78.89 0.20 0.57 0.50 76.1
20201114 03:45:19 GMI 37GHz 45.0 -8.04 78.51 -7.80 78.74 0.29 0.83 3.00 ***
20201114 03:45:00 Metop-B ASCAT 45.0 -8.39 78.86 -8.15 79.10 0.14 0.41 *** ***
20201114 02:30:00 Metop-A ASCAT 45.0 -8.10 79.15 -8.10 79.15 0.17 0.47 *** ***
20201114 02:30:00 * Geo Vis 45.0 -7.62 79.46 -7.62 79.46 0.11 0.32 0.20 ***
20201114 02:30:00 Geo NearIR 45.0 *** *** *** *** *** *** 0.10 ***
20201114 02:30:00 Geo IR 45.0 -7.70 79.23 -7.70 79.23 0.38 1.08 0.10 -0.7
20201114 00:53:41 SSMIS-17 85-92GHz 45.0 -6.97 79.00 -6.74 79.33 0.25 0.69 0.90 33.0
20201113 23:30:00 Geo NearIR 44.2 *** *** *** *** *** *** 0.20 ***
20201113 23:30:00 Geo IR 44.2 -7.20 79.74 -7.20 79.74 3.36 9.49 0.10 0.1
20201113 22:53:54 * SSMIS-16 85-92GHz 43.2 -7.09 79.92 -7.19 79.77 0.15 0.42 1.70 60.3
20201113 22:50:30 SSMIS-18 85-92GHz 43.1 -7.14 79.99 -7.24 79.82 0.17 0.47 1.70 52.0
20201113 20:30:00 Geo NearIR 39.2 *** *** *** *** *** *** 0.10 ***
20201113 20:30:00 Geo IR 39.2 -6.99 79.42 -6.99 79.42 3.36 9.49 0.10 3.1
20201113 20:28:46 AMSR2 85-92GHz 39.1 -6.74 80.16 -6.74 80.15 0.33 0.93 1.10 7.5
20201113 20:28:46 * AMSR2 37GHz 39.1 -7.09 80.41 -7.09 80.40 0.27 0.77 1.20 ***
20201113 17:30:00 Geo NearIR 35.0 -6.21 80.25 -6.21 80.25 0.69 1.96 0.30 ***
20201113 17:30:00 Geo IR 35.0 -6.63 80.17 -6.63 80.17 3.36 9.49 0.20 0.1

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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