-- 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
20200101 23:55:29 SSMIS-18 85-92GHz 50.0 *** *** *** *** *** *** 1.80 ***
20200101 23:30:00 Geo NearIR 50.3 -33.19 61.73 -33.19 61.73 1.26 3.55 0.60 ***
20200101 23:30:00 Geo IR 50.3 -33.17 62.30 -33.17 62.30 3.36 9.49 0.40 0.7
20200101 21:07:52 AMSR2 85-92GHz 51.6 -32.34 62.17 -32.14 62.06 0.44 1.24 2.70 2.7
20200101 21:07:52 * AMSR2 37GHz 51.6 -32.64 62.58 -32.44 62.47 0.34 0.96 0.20 ***
20200101 20:30:00 * Geo NearIR 51.9 -32.59 61.53 -32.59 61.53 0.34 0.97 0.60 ***
20200101 20:30:00 Geo IR 51.9 -32.54 61.68 -32.54 61.68 0.47 1.34 0.10 25.5
20200101 17:30:00 Geo NearIR 53.6 -31.99 61.47 -31.99 61.47 0.51 1.45 0.30 ***
20200101 17:30:00 Geo IR 53.6 -31.77 61.50 -31.77 61.50 0.46 1.30 0.40 -1.6
20200101 16:21:00 Metop-A ASCAT 54.2 *** *** *** *** *** *** *** ***
20200101 15:15:22 SSMIS-17 85-92GHz 54.9 -31.08 61.05 -30.83 60.90 0.37 1.06 2.80 2.7
20200101 14:30:00 Geo Vis 55.0 -30.86 61.68 -30.86 61.68 3.36 9.49 1.00 ***
20200101 14:30:00 Geo NearIR 55.0 -30.98 61.68 -30.98 61.68 0.42 1.19 0.40 ***
20200101 14:30:00 Geo IR 55.0 -30.73 61.60 -30.73 61.60 0.36 1.02 0.70 -0.1
20200101 11:30:00 * Geo Vis 55.6 -29.53 61.35 -29.53 61.35 0.21 0.60 0.30 ***
20200101 11:30:00 Geo NearIR 55.6 -30.13 61.61 -30.13 61.61 0.47 1.34 0.20 ***
20200101 11:30:00 Geo IR 55.6 -29.68 61.64 -29.68 61.64 0.94 2.66 0.20 2.1
20200101 10:08:30 AMSR2 85-92GHz 57.3 -29.18 61.00 -29.63 61.15 0.22 0.61 1.90 11.9
20200101 10:08:30 AMSR2 37GHz 57.3 -28.93 61.06 -29.38 61.21 0.36 1.01 0.20 ***
20200101 08:30:00 * Geo Vis 59.4 -28.64 61.17 -28.64 61.17 0.13 0.36 0.40 ***
20200101 08:30:00 Geo NearIR 59.4 -28.86 61.42 -28.86 61.42 0.57 1.62 0.40 ***
20200101 08:30:00 Geo IR 59.4 -29.04 61.65 -29.04 61.65 0.45 1.27 0.90 2.1
20200101 05:30:00 * Geo Vis 63.1 -27.46 61.06 -27.46 61.06 0.12 0.35 0.20 ***
20200101 05:30:00 Geo NearIR 63.1 -27.64 61.26 -27.64 61.26 0.65 1.85 1.00 ***
20200101 05:30:00 Geo IR 63.1 -27.39 61.29 -27.39 61.29 0.27 0.76 0.70 5.8
20200101 03:57:00 Metop-A ASCAT 65.1 -25.97 60.21 -25.52 60.10 0.21 0.61 *** ***
20200101 02:46:30 SSMIS-17 85-92GHz 66.5 -26.25 60.57 -26.17 60.55 0.21 0.60 0.20 46.5
20200101 02:30:00 Geo Vis 66.9 -26.09 60.49 -26.09 60.49 0.20 0.57 0.10 ***
20200101 02:30:00 Geo NearIR 66.9 -26.47 61.16 -26.47 61.16 0.43 1.22 0.30 ***
20200101 02:30:00 Geo IR 66.9 -26.07 60.60 -26.07 60.60 0.53 1.49 0.40 43.7
20191231 23:30:00 * Geo NearIR 70.0 -25.23 60.18 -25.23 60.18 0.16 0.45 0.30 ***
20191231 23:30:00 Geo IR 70.0 -25.15 60.15 -25.15 60.15 0.24 0.67 0.30 78.6
20191231 20:30:00 Geo NearIR 70.0 -24.35 59.37 -24.35 59.37 0.26 0.73 0.70 ***
20191231 20:30:00 * Geo IR 70.0 -24.15 59.37 -24.15 59.37 0.20 0.57 0.80 21.4
20191231 17:57:00 Metop-B ASCAT 70.0 *** *** *** *** *** *** *** ***
20191231 17:30:00 Geo NearIR 70.0 -23.92 59.38 -23.92 59.38 0.32 0.90 0.30 ***
20191231 17:30:00 Geo IR 70.0 -23.94 59.27 -23.94 59.27 0.25 0.71 0.80 -0.1
20191231 16:45:00 * Metop-A ASCAT 69.0 -23.45 58.94 -23.61 59.06 0.17 0.47 *** ***
20191231 15:30:54 * SSMIS-17 85-92GHz 69.7 -23.40 59.19 -23.20 59.05 0.16 0.45 1.80 63.3
20191231 14:30:00 Geo NearIR 70.0 -23.15 59.03 -23.15 59.03 0.36 1.01 0.20 ***
20191231 14:30:00 Geo IR 70.0 -23.10 58.97 -23.10 58.97 0.24 0.69 0.20 98.4
20191231 11:30:00 Geo Vis 69.6 -23.03 58.43 -23.03 58.43 0.17 0.48 1.00 ***
20191231 11:30:00 Geo NearIR 69.6 *** *** *** *** *** *** 0.20 ***
20191231 11:30:00 Geo IR 69.6 -23.05 58.48 -23.05 58.48 0.19 0.53 0.10 8.9
20191231 09:27:15 * AMSR2 85-92GHz 67.9 -22.33 58.65 -22.19 58.61 0.13 0.37 0.20 100.0
20191231 09:27:15 AMSR2 37GHz 67.9 -22.28 58.38 -22.14 58.34 0.13 0.38 0.30 ***
20191231 08:30:00 Geo Vis 67.1 -22.59 59.07 -22.59 59.07 0.49 1.38 1.00 ***
20191231 08:30:00 Geo NearIR 67.1 -22.74 59.31 -22.74 59.31 1.52 4.29 1.00 ***
20191231 08:30:00 Geo IR 67.1 -22.59 58.47 -22.59 58.47 0.25 0.72 0.30 0.6
20191231 05:30:00 Metop-B ASCAT 64.6 *** *** *** *** *** *** *** ***
20191231 05:30:00 Geo Vis 64.6 -21.87 58.86 -21.87 58.86 0.18 0.51 0.70 ***
20191231 05:30:00 Geo NearIR 64.6 -22.02 58.81 -22.02 58.81 1.09 3.08 0.30 ***
20191231 05:30:00 * Geo IR 64.6 -21.85 58.62 -21.85 58.62 0.11 0.31 0.10 4.6
20191231 04:15:00 Metop-A ASCAT 63.5 -21.50 58.01 -21.64 58.05 0.15 0.41 *** ***
20191231 02:59:20 SSMIS-17 85-92GHz 62.5 -21.02 58.36 -20.98 58.35 0.19 0.52 2.90 44.1
20191231 02:36:39 GMI 85-92GHz 62.2 -21.24 58.03 -21.23 58.02 0.19 0.53 0.50 77.2
20191231 02:36:39 * GMI 37GHz 62.2 -21.34 58.03 -21.33 58.02 0.14 0.40 0.30 ***
20191231 02:30:00 Geo Vis 62.1 -21.35 58.45 -21.35 58.45 0.20 0.56 0.60 ***
20191231 02:30:00 Geo NearIR 62.1 -21.28 58.37 -21.28 58.37 0.27 0.76 0.20 ***
20191231 02:30:00 Geo IR 62.1 -21.20 58.35 -21.20 58.35 0.16 0.45 0.10 -3.5
20191230 23:30:00 Geo NearIR 59.6 -21.67 58.30 -21.67 58.30 0.35 1.00 0.20 ***
20191230 23:30:00 * Geo IR 59.6 -21.50 58.05 -21.50 58.05 0.15 0.44 0.20 -4.3
20191230 21:17:28 * AMSR2 85-92GHz 57.7 -20.91 58.01 -20.88 58.02 0.17 0.48 0.20 87.1
20191230 21:17:28 AMSR2 37GHz 57.7 -21.01 57.80 -20.98 57.81 0.23 0.65 0.40 ***
20191230 20:30:00 Geo NearIR 57.1 -21.53 58.16 -21.53 58.16 0.41 1.17 0.10 ***
20191230 20:30:00 Geo IR 57.1 -20.98 58.13 -20.98 58.13 0.34 0.96 0.30 62.9
20191230 18:21:00 * Metop-B ASCAT 55.3 -20.95 57.95 -20.92 57.97 0.16 0.45 *** ***
20191230 17:30:00 Geo NearIR 54.6 -20.95 58.34 -20.95 58.34 0.17 0.48 0.30 ***
20191230 17:30:00 Geo IR 54.6 -20.85 58.29 -20.85 58.29 0.22 0.63 0.30 99.7
20191230 14:30:00 Geo NearIR 52.1 -20.79 58.33 -20.79 58.33 0.17 0.48 0.20 ***
20191230 14:30:00 Geo IR 52.1 -20.77 58.19 -20.77 58.19 0.16 0.44 0.10 49.9
20191230 13:16:39 GMI 85-92GHz 51.1 -20.72 58.38 -20.74 58.35 0.16 0.45 1.30 71.2
20191230 13:16:39 GMI 37GHz 51.1 -20.87 58.22 -20.89 58.19 0.12 0.35 0.20 ***
20191230 13:02:42 SSMIS-18 85-92GHz 50.0 -20.63 58.47 -20.66 58.43 0.14 0.38 1.30 72.3
20191230 11:49:27 SSMIS-16 85-92GHz 49.8 *** *** *** *** *** *** 1.60 ***
20191230 11:30:00 * Geo Vis 49.4 -20.87 58.18 -20.87 58.18 0.08 0.24 0.50 ***
20191230 11:30:00 Geo NearIR 49.4 -20.74 58.23 -20.74 58.23 0.20 0.57 0.30 ***
20191230 11:30:00 Geo IR 49.4 -20.74 58.26 -20.74 58.26 0.25 0.71 0.10 50.5
20191230 08:30:00 * Geo Vis 45.6 -20.69 58.28 -20.69 58.28 0.09 0.25 0.10 ***
20191230 08:30:00 Geo NearIR 45.6 -21.06 58.49 -21.06 58.49 0.41 1.15 0.60 ***
20191230 08:30:00 Geo IR 45.6 -20.56 58.22 -20.56 58.22 0.55 1.55 1.00 14.3
20191230 05:51:00 Metop-B ASCAT 42.3 -20.50 58.25 -20.50 58.27 0.13 0.37 *** ***
20191230 05:30:00 Geo Vis 41.9 -20.60 58.52 -20.60 58.52 0.14 0.40 0.60 ***
20191230 05:30:00 Geo NearIR 41.9 -20.72 58.60 -20.72 58.60 0.19 0.53 0.70 ***
20191230 05:30:00 * Geo IR 41.9 -20.52 58.60 -20.52 58.60 0.12 0.35 0.10 20.9
20191230 02:30:00 Geo Vis 38.1 -20.78 58.71 -20.78 58.71 0.22 0.61 0.90 ***
20191230 02:30:00 Geo NearIR 38.1 -20.75 58.58 -20.75 58.58 0.38 1.08 0.20 ***
20191230 02:30:00 Geo IR 38.1 -20.53 58.53 -20.53 58.53 0.17 0.47 0.20 12.1
20191230 00:30:02 * SSMIS-18 85-92GHz 35.0 -20.52 58.51 -20.50 58.58 0.13 0.38 0.50 91.0
20191229 23:30:00 Geo NearIR 35.0 -20.93 58.85 -20.93 58.85 1.15 3.25 0.10 ***
20191229 23:30:00 Geo IR 35.0 -20.75 58.48 -20.75 58.48 1.96 5.53 0.40 2.6
20191229 20:30:00 Geo NearIR 35.0 -21.41 58.81 -21.41 58.81 0.34 0.96 0.10 ***
20191229 20:30:00 * Geo IR 35.0 -21.11 58.57 -21.11 58.57 0.21 0.60 0.50 4.6
20191229 17:30:00 Geo NearIR 35.0 -21.31 59.33 -21.31 59.33 2.21 6.25 0.10 ***
20191229 17:30:00 Geo IR 35.0 -21.01 59.44 -21.01 59.44 0.21 0.59 0.10 41.0
20191229 17:27:00 * Metop-A ASCAT 35.0 -20.06 59.17 -20.06 59.17 0.13 0.36 *** ***
20191229 14:30:00 Geo NearIR 35.0 -20.58 60.20 -20.58 60.20 0.19 0.55 0.20 ***
20191229 14:30:00 Geo IR 35.0 -20.63 59.86 -20.63 59.86 0.18 0.50 0.20 11.6
20191229 11:30:00 * Geo Vis 35.0 -20.30 59.71 -20.30 59.71 0.17 0.47 0.90 ***
20191229 11:30:00 Geo NearIR 35.0 -20.62 61.12 -20.62 61.12 0.77 2.17 0.10 ***
20191229 11:30:00 Geo IR 35.0 -20.50 60.19 -20.50 60.19 2.78 7.86 0.50 2.4

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