-- 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
20200320 05:30:00 Geo Vis 30.0 -28.52 74.81 -28.52 74.81 0.37 1.05 0.10 ***
20200320 05:30:00 Geo NearIR 30.0 -28.62 74.90 -28.62 74.90 1.30 3.68 0.10 ***
20200320 05:30:00 Geo IR 30.0 -28.62 74.98 -28.62 74.98 3.36 9.49 0.70 0.4
20200320 04:36:00 Metop-B ASCAT 30.0 -28.19 74.00 -28.32 74.10 0.20 0.56 *** ***
20200320 02:30:00 * Geo Vis 30.0 -27.68 74.29 -27.68 74.29 0.15 0.43 0.40 ***
20200320 02:30:00 Geo NearIR 30.0 -27.38 74.31 -27.38 74.31 0.41 1.15 1.00 ***
20200320 02:30:00 Geo IR 30.0 -27.25 74.23 -27.25 74.23 0.66 1.86 0.10 1.4
20200319 23:30:00 Geo NearIR 30.0 -27.00 73.80 -27.00 73.80 0.45 1.28 0.10 ***
20200319 23:30:00 Geo IR 30.0 -27.20 73.75 -27.20 73.75 0.68 1.93 0.50 1.0
20200319 22:34:37 SSMIS-16 85-92GHz 30.0 -27.02 73.26 -27.15 73.38 0.45 1.26 3.00 1.0
20200319 20:30:00 Geo NearIR 30.0 -26.71 73.56 -26.71 73.56 0.49 1.37 0.60 ***
20200319 20:30:00 Geo IR 30.0 -26.98 73.59 -26.98 73.59 3.36 9.49 0.20 0.7
20200319 17:30:00 Geo NearIR 30.4 -26.22 73.10 -26.22 73.10 3.36 9.49 0.60 ***
20200319 17:30:00 Geo IR 30.4 -26.89 74.49 -26.89 74.49 3.36 9.49 0.40 10.5
20200319 17:24:00 * Metop-B ASCAT 30.5 -26.63 72.69 -26.64 72.70 0.17 0.49 *** ***
20200319 14:30:00 Geo NearIR 32.9 *** *** *** *** *** *** 0.10 ***
20200319 14:30:00 Geo IR 32.9 -27.15 74.01 -27.15 74.01 0.86 2.43 0.10 -0.1
20200319 12:31:39 GMI 85-92GHz 34.6 *** *** *** *** *** *** 2.80 ***
20200319 12:31:39 GMI 37GHz 34.6 *** *** *** *** *** *** 1.70 ***
20200319 11:30:00 * Geo Vis 35.4 -26.03 71.96 -26.03 71.96 0.14 0.40 0.30 ***
20200319 11:30:00 Geo NearIR 35.4 -26.06 72.16 -26.06 72.16 0.61 1.72 0.90 ***
20200319 11:30:00 Geo IR 35.4 -26.43 72.16 -26.43 72.16 1.22 3.46 0.80 5.2
20200319 11:16:46 SSMIS-16 85-92GHz 35.6 -25.91 71.85 -25.93 71.88 0.25 0.69 2.40 4.0
20200319 08:30:00 * Geo Vis 37.9 -25.63 71.78 -25.63 71.78 0.11 0.31 0.10 ***
20200319 08:30:00 Geo NearIR 37.9 *** *** *** *** *** *** 0.10 ***
20200319 08:30:00 Geo IR 37.9 -26.63 71.50 -26.63 71.50 0.88 2.49 0.80 -2.0
20200319 05:30:00 Geo Vis 40.2 -25.46 71.14 -25.46 71.14 0.33 0.92 0.20 ***
20200319 05:30:00 Geo NearIR 40.2 *** *** *** *** *** *** 0.20 ***
20200319 05:30:00 Geo IR 40.2 -26.11 70.09 -26.11 70.09 3.36 9.49 1.00 2.9
20200319 04:57:00 * Metop-B ASCAT 40.4 -25.22 70.90 -25.26 70.98 0.15 0.41 *** ***
20200319 02:46:40 GMI 85-92GHz 41.3 -24.80 70.37 -24.78 70.32 0.29 0.81 3.00 4.5
20200319 02:46:40 GMI 37GHz 41.3 -25.35 71.42 -25.33 71.37 0.34 0.96 3.00 ***
20200319 02:30:00 Geo Vis 41.5 -25.76 71.76 -25.76 71.76 0.51 1.45 0.50 ***
20200319 02:30:00 Geo NearIR 41.5 -25.78 71.84 -25.78 71.84 1.12 3.16 0.50 ***
20200319 02:30:00 Geo IR 41.5 -25.71 71.82 -25.71 71.82 1.48 4.18 0.30 -0.9
20200319 00:34:43 SSMIS-18 85-92GHz 42.3 -24.74 69.82 -24.69 69.66 0.26 0.75 3.00 0.0
20200318 23:30:00 Geo NearIR 42.7 -25.49 70.90 -25.49 70.90 1.56 4.41 0.10 ***
20200318 23:30:00 * Geo IR 42.7 -25.61 70.32 -25.61 70.32 0.19 0.54 0.20 10.1
20200318 22:47:05 SSMIS-16 85-92GHz 43.0 -25.66 70.59 -25.69 70.70 0.27 0.76 0.30 52.1
20200318 20:30:00 Geo NearIR 44.0 -25.16 69.91 -25.16 69.91 0.47 1.33 0.50 ***
20200318 20:30:00 * Geo IR 44.0 -25.06 69.52 -25.06 69.52 0.19 0.52 0.50 9.8
20200318 17:30:00 Geo NearIR 45.4 -24.59 69.54 -24.59 69.54 0.49 1.39 0.30 ***
20200318 17:30:00 * Geo IR 45.4 -24.56 69.26 -24.56 69.26 0.16 0.46 0.30 27.7
20200318 14:30:00 Geo NearIR 47.9 *** *** *** *** *** *** 0.10 ***
20200318 14:30:00 Geo IR 47.9 -24.29 69.02 -24.29 69.02 0.23 0.64 0.80 2.4
20200318 11:30:00 Geo Vis 50.4 -24.23 67.74 -24.23 67.74 0.24 0.69 0.80 ***
20200318 11:30:00 Geo NearIR 50.4 -24.28 68.23 -24.28 68.23 3.36 9.49 1.00 ***
20200318 11:30:00 Geo IR 50.4 -24.21 68.09 -24.21 68.09 0.28 0.78 0.90 0.2
20200318 08:30:00 * Geo Vis 52.9 -23.82 67.01 -23.82 67.01 0.11 0.30 0.20 ***
20200318 08:30:00 Geo NearIR 52.9 -24.37 67.17 -24.37 67.17 0.43 1.22 0.30 ***
20200318 08:30:00 Geo IR 52.9 -23.89 67.04 -23.89 67.04 0.76 2.14 0.10 -3.2
20200318 05:30:00 * Geo Vis 55.6 -23.37 66.09 -23.37 66.09 0.20 0.56 0.10 ***
20200318 05:30:00 Geo NearIR 55.6 *** *** *** *** *** *** 0.10 ***
20200318 05:30:00 Geo IR 55.6 *** *** *** *** *** *** 0.10 ***
20200318 02:30:00 Geo Vis 59.4 -22.91 65.67 -22.91 65.67 0.49 1.38 0.60 ***
20200318 02:30:00 Geo NearIR 59.4 *** *** *** *** *** *** 0.10 ***
20200318 02:30:00 Geo IR 59.4 -23.21 66.75 -23.21 66.75 0.35 0.98 0.30 4.1
20200317 23:30:00 Geo NearIR 63.1 *** *** *** *** *** *** 0.10 ***
20200317 23:30:00 * Geo IR 63.1 -22.58 65.53 -22.58 65.53 0.22 0.61 0.80 -0.3
20200317 20:30:00 Geo NearIR 66.9 *** *** *** *** *** *** 0.10 ***
20200317 20:30:00 Geo IR 66.9 -22.31 64.98 -22.31 64.98 0.36 1.03 0.20 5.6
20200317 17:30:00 Geo NearIR 71.3 *** *** *** *** *** *** 0.10 ***
20200317 17:30:00 * Geo IR 71.3 -21.90 64.21 -21.90 64.21 0.16 0.46 0.20 10.5
20200317 14:30:00 Geo NearIR 78.8 -21.77 63.10 -21.77 63.10 0.66 1.86 0.10 ***
20200317 14:30:00 * Geo IR 78.8 -21.50 63.10 -21.50 63.10 0.18 0.51 0.10 -3.1
20200317 11:30:00 Geo Vis 86.3 -20.81 61.94 -20.81 61.94 0.30 0.84 0.30 ***
20200317 11:30:00 Geo NearIR 86.3 -20.76 62.26 -20.76 62.26 0.22 0.62 0.50 ***
20200317 11:30:00 Geo IR 86.3 -20.56 62.04 -20.56 62.04 0.17 0.49 1.00 7.8
20200317 08:30:00 * Geo Vis 93.8 -19.95 60.98 -19.95 60.98 0.11 0.31 0.50 ***
20200317 08:30:00 Geo NearIR 93.8 -20.27 61.19 -20.27 61.19 0.50 1.42 0.30 ***
20200317 08:30:00 Geo IR 93.8 -19.65 60.82 -19.65 60.82 0.13 0.36 1.00 -1.6
20200317 05:30:00 * Geo Vis 99.2 -19.09 60.44 -19.09 60.44 0.10 0.29 0.50 ***
20200317 05:30:00 Geo NearIR 99.2 -18.96 60.29 -18.96 60.29 0.29 0.83 0.10 ***
20200317 05:30:00 Geo IR 99.2 -18.91 60.21 -18.91 60.21 0.29 0.81 0.10 80.7
20200317 02:30:00 Geo Vis 94.2 -18.39 59.59 -18.39 59.59 0.23 0.64 0.50 ***
20200317 02:30:00 Geo NearIR 94.2 -18.54 59.49 -18.54 59.49 0.48 1.35 0.10 ***
20200317 02:30:00 Geo IR 94.2 -18.46 59.41 -18.46 59.41 0.34 0.95 0.10 61.0
20200316 23:30:00 * Geo NearIR 89.2 -17.69 57.69 -17.69 57.69 0.17 0.49 0.10 ***
20200316 23:30:00 Geo IR 89.2 -17.82 57.82 -17.82 57.82 0.18 0.52 0.20 31.3
20200316 20:30:00 Geo NearIR 84.2 -17.93 57.69 -17.93 57.69 0.19 0.55 0.10 ***
20200316 20:30:00 * Geo IR 84.2 -17.38 57.35 -17.38 57.35 0.17 0.48 0.90 9.2
20200316 17:30:00 Geo NearIR 80.0 -16.64 56.31 -16.64 56.31 0.24 0.66 0.20 ***
20200316 17:30:00 * Geo IR 80.0 -16.94 56.28 -16.94 56.28 0.18 0.51 0.30 41.0
20200316 14:30:00 Geo NearIR 80.0 -16.39 55.42 -16.39 55.42 1.62 4.59 0.20 ***
20200316 14:30:00 Geo IR 80.0 -16.59 55.47 -16.59 55.47 0.19 0.54 0.10 9.7
20200316 11:30:00 Geo Vis 80.0 -16.24 54.99 -16.24 54.99 0.12 0.34 1.00 ***
20200316 11:30:00 Geo NearIR 80.0 -15.97 55.04 -15.97 55.04 0.24 0.67 0.10 ***
20200316 11:30:00 * Geo IR 80.0 -16.27 54.83 -16.27 54.83 0.10 0.29 0.10 25.2
20200316 08:30:00 * Geo Vis 80.0 -15.65 54.79 -15.65 54.79 0.10 0.29 0.50 ***
20200316 08:30:00 Geo NearIR 80.0 -15.67 54.69 -15.67 54.69 0.28 0.80 0.40 ***
20200316 08:30:00 Geo IR 80.0 -15.57 54.53 -15.57 54.53 0.23 0.64 0.10 75.9
20200316 05:30:00 * Geo Vis 80.0 -15.73 54.17 -15.73 54.17 0.11 0.31 0.10 ***
20200316 05:30:00 Geo NearIR 80.0 -15.95 53.89 -15.95 53.89 0.57 1.61 1.00 ***
20200316 05:30:00 Geo IR 80.0 -15.30 53.94 -15.30 53.94 0.22 0.63 1.00 12.9
20200316 02:30:00 Geo NearIR 80.0 -15.67 53.71 -15.67 53.71 0.20 0.57 0.50 ***
20200316 02:30:00 * Geo IR 80.0 -15.30 53.53 -15.30 53.53 0.15 0.42 0.40 3.0
20200315 23:30:00 Geo NearIR 80.0 -15.72 53.34 -15.72 53.34 0.79 2.25 0.30 ***
20200315 23:30:00 Geo IR 80.0 -15.67 53.24 -15.67 53.24 0.23 0.65 0.20 65.0
20200315 20:30:00 Geo NearIR 80.0 -15.58 52.95 -15.58 52.95 0.28 0.79 0.50 ***
20200315 20:30:00 * Geo IR 80.0 -15.63 52.98 -15.63 52.98 0.18 0.52 0.60 97.5
20200315 17:30:00 Geo NearIR 79.6 -15.94 53.20 -15.94 53.20 0.63 1.77 0.10 ***
20200315 17:30:00 * Geo IR 79.6 -15.41 52.86 -15.41 52.86 0.20 0.56 1.00 62.1
20200315 14:30:00 Geo NearIR 77.1 -15.35 52.37 -15.35 52.37 0.23 0.65 0.60 ***
20200315 14:30:00 Geo IR 77.1 -15.35 52.27 -15.35 52.27 0.33 0.93 0.70 65.9
20200315 11:30:00 * Geo Vis 74.6 -15.33 52.15 -15.33 52.15 0.20 0.55 0.50 ***
20200315 11:30:00 Geo NearIR 74.6 -15.45 52.02 -15.45 52.02 0.31 0.88 0.50 ***
20200315 11:30:00 Geo IR 74.6 -15.60 52.09 -15.60 52.09 0.30 0.85 0.40 53.6
20200315 08:30:00 * Geo Vis 72.1 -15.16 51.86 -15.16 51.86 0.11 0.30 0.40 ***
20200315 08:30:00 Geo NearIR 72.1 -15.28 51.84 -15.28 51.84 0.30 0.84 0.50 ***
20200315 08:30:00 Geo IR 72.1 -15.26 51.94 -15.26 51.94 0.34 0.95 0.10 78.3
20200315 05:30:00 * Geo Vis 69.8 -15.14 51.64 -15.14 51.64 0.11 0.32 0.30 ***
20200315 05:30:00 Geo NearIR 69.8 -15.14 51.72 -15.14 51.72 0.21 0.59 0.70 ***
20200315 05:30:00 Geo IR 69.8 -15.12 51.72 -15.12 51.72 0.50 1.40 0.10 61.7
20200315 02:30:00 Geo NearIR 68.5 -15.38 51.71 -15.38 51.71 0.22 0.62 1.00 ***
20200315 02:30:00 Geo IR 68.5 -15.48 51.69 -15.48 51.69 0.24 0.68 0.10 75.3
20200314 23:30:00 * Geo NearIR 67.3 -15.13 51.41 -15.13 51.41 0.27 0.75 0.30 ***
20200314 23:30:00 Geo IR 67.3 -15.13 51.44 -15.13 51.44 0.37 1.05 0.10 82.9
20200314 20:30:00 Geo NearIR 66.0 -15.03 49.98 -15.03 49.98 0.40 1.14 0.10 ***
20200314 20:30:00 Geo IR 66.0 -15.11 50.80 -15.11 50.80 1.31 3.70 0.40 12.3
20200314 17:30:00 Geo NearIR 64.8 -14.93 50.13 -14.93 50.13 0.56 1.59 0.10 ***
20200314 17:30:00 Geo IR 64.8 -14.88 50.80 -14.88 50.80 1.95 5.51 0.90 4.0
20200314 14:30:00 Geo NearIR 63.5 -14.72 51.04 -14.72 51.04 0.26 0.73 0.30 ***
20200314 14:30:00 * Geo IR 63.5 -14.85 50.83 -14.85 50.83 0.23 0.65 0.20 40.5
20200314 11:30:00 Geo Vis 62.3 -14.71 51.06 -14.71 51.06 0.21 0.60 0.10 ***
20200314 11:30:00 Geo NearIR 62.3 -14.86 51.26 -14.86 51.26 0.58 1.64 0.20 ***
20200314 11:30:00 Geo IR 62.3 -14.91 51.19 -14.91 51.19 0.22 0.61 0.10 6.7
20200314 08:30:00 * Geo Vis 61.0 -14.54 50.91 -14.54 50.91 0.12 0.35 0.90 ***
20200314 08:30:00 Geo NearIR 61.0 -14.99 51.97 -14.99 51.97 0.51 1.45 0.10 ***
20200314 08:30:00 Geo IR 61.0 -14.94 50.81 -14.94 50.81 0.42 1.20 0.10 6.4
20200314 05:30:00 Geo Vis 59.4 -14.47 51.22 -14.47 51.22 0.50 1.42 0.10 ***
20200314 05:30:00 Geo NearIR 59.4 -14.85 51.76 -14.85 51.76 1.12 3.16 0.40 ***
20200314 05:30:00 Geo IR 59.4 -14.70 51.29 -14.70 51.29 0.46 1.31 0.30 72.0
20200314 02:30:00 Geo NearIR 55.6 -14.72 51.48 -14.72 51.48 2.62 7.39 0.60 ***
20200314 02:30:00 Geo IR 55.6 -14.64 51.40 -14.64 51.40 3.36 9.49 0.60 25.4
20200313 23:30:00 Geo NearIR 51.9 -14.53 51.41 -14.53 51.41 0.43 1.22 0.10 ***
20200313 23:30:00 * Geo IR 51.9 -14.38 51.62 -14.38 51.62 0.36 1.02 0.10 73.0
20200313 20:30:00 Geo NearIR 48.1 -14.62 51.85 -14.62 51.85 0.98 2.76 0.40 ***
20200313 20:30:00 Geo IR 48.1 -14.17 51.33 -14.17 51.33 0.55 1.56 0.60 11.2
20200313 17:30:00 Geo NearIR 44.6 *** *** *** *** *** *** 0.10 ***
20200313 17:30:00 * Geo IR 44.6 -14.28 51.33 -14.28 51.33 0.40 1.13 0.10 2.4
20200313 14:30:00 Geo NearIR 42.1 -14.08 51.55 -14.08 51.55 1.19 3.37 0.20 ***
20200313 14:30:00 Geo IR 42.1 -13.83 50.95 -13.83 50.95 0.86 2.43 0.20 10.8
20200313 11:30:00 * Geo Vis 39.6 -13.93 51.85 -13.93 51.85 0.24 0.67 1.00 ***
20200313 11:30:00 Geo NearIR 39.6 -13.91 52.26 -13.91 52.26 3.36 9.49 0.10 ***
20200313 11:30:00 Geo IR 39.6 -13.91 52.10 -13.91 52.10 0.53 1.51 0.20 13.3
20200313 08:30:00 Geo Vis 37.1 -13.83 52.16 -13.83 52.16 0.97 2.74 0.40 ***
20200313 08:30:00 Geo NearIR 37.1 *** *** *** *** *** *** 0.20 ***
20200313 08:30:00 Geo IR 37.1 *** *** *** *** *** *** 1.00 ***
20200313 05:30:00 * Geo Vis 35.0 -13.21 52.29 -13.21 52.29 0.34 0.97 0.60 ***
20200313 05:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.10 ***
20200313 05:30:00 Geo IR 35.0 -12.93 51.90 -12.93 51.90 3.36 9.49 0.10 1.1

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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