-- 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
20200218 21:21:40 * GMI 85-92GHz 30.0 -21.52 75.04 -21.46 75.09 0.22 0.62 2.80 26.2
20200218 21:21:40 GMI 37GHz 30.0 -21.77 75.20 -21.71 75.25 0.31 0.88 1.00 ***
20200218 20:30:00 Geo NearIR 30.0 -22.91 76.46 -22.91 76.46 0.34 0.97 0.10 ***
20200218 20:30:00 Geo IR 30.0 -22.73 76.00 -22.73 76.00 0.46 1.31 0.30 5.8
20200218 17:30:00 Geo NearIR 30.0 -22.92 76.22 -22.92 76.22 0.90 2.54 0.20 ***
20200218 17:30:00 Geo IR 30.0 -22.12 74.80 -22.12 74.80 1.19 3.36 0.50 3.8
20200218 16:30:00 * Metop-A ASCAT 30.0 -21.03 75.10 -21.12 75.04 0.14 0.39 *** ***
20200218 16:03:00 Metop-B ASCAT 30.0 *** *** *** *** *** *** *** ***
20200218 14:30:00 Geo NearIR 30.0 -22.13 76.19 -22.13 76.19 3.36 9.49 1.00 ***
20200218 14:30:00 Geo IR 30.0 -22.60 75.47 -22.60 75.47 1.22 3.46 0.10 -1.5
20200218 12:39:29 SSMIS-18 85-92GHz 30.0 -20.90 75.31 -20.82 75.36 0.26 0.74 1.80 3.0
20200218 11:30:00 * Geo Vis 30.2 -21.17 75.68 -21.17 75.68 0.16 0.45 0.80 ***
20200218 11:30:00 Geo NearIR 30.2 -21.29 75.68 -21.29 75.68 0.93 2.62 0.50 ***
20200218 11:30:00 Geo IR 30.2 -21.29 75.87 -21.29 75.87 3.36 9.49 0.50 0.4
20200218 11:04:20 SSMIS-16 85-92GHz 30.4 -20.94 75.64 -20.97 75.63 0.57 1.62 2.80 0.2
20200218 08:32:01 AMSR2 85-92GHz 31.4 -20.75 75.68 -20.75 75.69 0.30 0.85 2.20 4.1
20200218 08:32:01 AMSR2 37GHz 31.4 -21.30 76.01 -21.30 76.01 0.18 0.52 1.30 ***
20200218 08:30:00 * Geo Vis 31.5 -20.95 75.79 -20.95 75.79 0.15 0.41 0.10 ***
20200218 08:30:00 Geo NearIR 31.5 -20.93 75.85 -20.93 75.85 1.12 3.17 1.00 ***
20200218 08:30:00 Geo IR 31.5 -20.95 75.98 -20.95 75.98 3.36 9.49 0.90 0.6
20200218 05:30:00 * Geo Vis 32.7 -20.72 75.80 -20.72 75.80 0.12 0.35 0.10 ***
20200218 05:30:00 Geo NearIR 32.7 *** *** *** *** *** *** 0.80 ***
20200218 05:30:00 Geo IR 32.7 *** *** *** *** *** *** 0.20 ***
20200218 04:03:00 Metop-A ASCAT 33.3 -20.42 75.65 -20.47 75.62 0.12 0.35 *** ***
20200218 04:00:00 * Metop-A ASCAT 33.3 -20.41 75.65 -20.37 75.68 0.12 0.35 *** ***
20200218 03:36:00 Metop-B ASCAT 33.5 -20.25 75.87 -20.22 75.89 0.18 0.51 *** ***
20200218 02:30:00 Geo Vis 34.0 -20.79 75.84 -20.79 75.84 0.42 1.19 0.80 ***
20200218 02:30:00 Geo NearIR 34.0 -21.44 76.13 -21.44 76.13 0.58 1.64 0.10 ***
20200218 02:30:00 Geo IR 34.0 -21.52 75.97 -21.52 75.97 3.36 9.49 0.20 7.6
20200218 00:06:33 SSMIS-18 85-92GHz 35.0 -20.30 76.01 -20.29 76.01 0.27 0.76 1.80 11.2
20200217 23:30:00 Geo NearIR 35.4 -20.81 77.24 -20.81 77.24 3.36 9.49 0.20 ***
20200217 23:30:00 Geo IR 35.4 -21.86 76.28 -21.86 76.28 3.36 9.49 0.20 -0.4
20200217 22:31:46 * SSMIS-16 85-92GHz 36.2 -20.11 75.79 -20.14 75.80 0.23 0.66 2.30 6.3
20200217 22:11:39 GMI 85-92GHz 36.5 *** *** *** *** *** *** 3.00 ***
20200217 22:11:39 GMI 37GHz 36.5 *** *** *** *** *** *** 3.00 ***
20200217 20:30:00 Geo NearIR 37.9 -21.59 76.66 -21.59 76.66 0.35 1.00 0.10 ***
20200217 20:30:00 Geo IR 37.9 -21.52 76.55 -21.52 76.55 0.24 0.69 0.10 5.8
20200217 20:21:26 * AMSR2 85-92GHz 38.0 -20.16 75.56 -20.17 75.57 0.20 0.56 2.50 9.3
20200217 20:21:26 AMSR2 37GHz 38.0 -21.01 75.94 -21.02 75.94 0.29 0.82 2.10 ***
20200217 17:30:00 Geo NearIR 40.4 -20.66 76.13 -20.66 76.13 2.02 5.71 0.90 ***
20200217 17:30:00 Geo IR 40.4 -21.21 76.26 -21.21 76.26 1.69 4.77 0.90 4.7
20200217 16:27:00 Metop-B ASCAT 41.3 *** *** *** *** *** *** *** ***
20200217 16:24:00 Metop-B ASCAT 41.3 *** *** *** *** *** *** *** ***
20200217 14:30:00 Geo NearIR 42.9 -20.91 76.21 -20.91 76.21 0.50 1.42 0.50 ***
20200217 14:30:00 Geo IR 42.9 -20.91 76.37 -20.91 76.37 0.33 0.93 0.40 58.3
20200217 11:30:00 * Geo Vis 46.0 -20.85 75.59 -20.85 75.59 0.27 0.77 0.10 ***
20200217 11:30:00 Geo NearIR 46.0 -21.05 76.79 -21.05 76.79 0.75 2.12 0.10 ***
20200217 11:30:00 Geo IR 46.0 -20.88 76.60 -20.88 76.60 0.90 2.54 0.10 8.7
20200217 11:17:22 SSMIS-16 85-92GHz 46.5 -20.35 75.35 -20.35 75.35 0.26 0.74 1.80 3.7
20200217 08:30:00 * Geo Vis 52.3 -20.98 75.97 -20.98 75.97 0.13 0.37 0.30 ***
20200217 08:30:00 Geo NearIR 52.3 -21.28 76.43 -21.28 76.43 0.21 0.59 0.10 ***
20200217 08:30:00 Geo IR 52.3 -20.88 76.27 -20.88 76.27 1.03 2.91 0.60 41.7
20200217 05:30:00 * Geo Vis 58.5 -20.88 76.06 -20.88 76.06 0.08 0.22 0.10 ***
20200217 05:30:00 Geo NearIR 58.5 -21.00 76.03 -21.00 76.03 0.25 0.72 0.70 ***
20200217 05:30:00 Geo IR 58.5 -20.95 76.03 -20.95 76.03 0.25 0.71 0.50 5.6
20200217 03:57:00 Metop-B ASCAT 61.8 -20.20 75.29 -20.20 75.28 0.13 0.36 *** ***
20200217 02:30:00 * Geo Vis 64.8 -20.95 75.94 -20.95 75.94 0.12 0.34 0.10 ***
20200217 02:30:00 Geo NearIR 64.8 -21.00 75.78 -21.00 75.78 0.26 0.74 0.40 ***
20200217 02:30:00 Geo IR 64.8 -20.85 75.60 -20.85 75.60 0.22 0.61 0.10 20.0
20200217 00:19:21 SSMIS-18 85-92GHz 70.0 -20.70 75.03 -20.70 75.02 0.21 0.59 3.00 0.0
20200216 23:30:00 Geo NearIR 70.2 -20.80 75.27 -20.80 75.27 0.27 0.76 0.10 ***
20200216 23:30:00 Geo IR 70.2 -20.70 75.62 -20.70 75.62 0.16 0.45 0.90 -1.8
20200216 22:44:46 SSMIS-16 85-92GHz 70.5 -20.80 75.40 -20.80 75.41 0.16 0.46 0.20 63.2
20200216 20:30:00 Geo NearIR 71.5 -20.62 75.10 -20.62 75.10 0.33 0.95 0.10 ***
20200216 20:30:00 * Geo IR 71.5 -20.57 75.23 -20.57 75.23 0.17 0.49 0.90 14.6
20200216 17:30:00 Geo NearIR 72.7 -20.72 75.02 -20.72 75.02 0.38 1.07 0.30 ***
20200216 17:30:00 Geo IR 72.7 -20.64 74.96 -20.64 74.96 0.35 0.99 0.10 2.5
20200216 15:30:00 * Metop-A ASCAT 73.5 -20.10 75.17 -20.09 75.14 0.15 0.43 *** ***
20200216 14:30:00 Geo NearIR 74.0 -20.66 75.48 -20.66 75.48 0.32 0.89 0.10 ***
20200216 14:30:00 Geo IR 74.0 -20.44 74.87 -20.44 74.87 0.25 0.71 0.90 -0.0
20200216 13:28:11 SSMIS-17 85-92GHz 75.0 -20.65 75.32 -20.67 75.35 0.17 0.47 2.90 -0.2
20200216 11:41:40 * GMI 85-92GHz 75.0 -20.33 75.00 -20.32 74.99 0.11 0.31 0.30 100.0
20200216 11:41:40 GMI 37GHz 75.0 -20.18 75.00 -20.17 74.99 0.18 0.50 0.20 ***
20200216 11:30:53 SSMIS-16 85-92GHz 75.0 -20.41 74.95 -20.41 74.95 0.13 0.36 0.30 100.0
20200216 11:30:00 Geo Vis 75.0 -20.51 75.21 -20.51 75.21 0.17 0.48 0.40 ***
20200216 11:30:00 Geo NearIR 75.0 -20.33 75.34 -20.33 75.34 0.17 0.48 0.10 ***
20200216 11:30:00 Geo IR 75.0 -20.21 74.97 -20.21 74.97 0.13 0.37 0.10 19.7
20200216 08:44:44 AMSR2 85-92GHz 75.0 -19.83 75.01 -19.79 75.00 0.17 0.47 0.10 63.4
20200216 08:44:44 AMSR2 37GHz 75.0 -19.78 74.85 -19.74 74.84 0.12 0.33 0.20 ***
20200216 08:30:00 * Geo Vis 75.0 -20.07 75.21 -20.07 75.21 0.10 0.27 0.30 ***
20200216 08:30:00 Geo NearIR 75.0 -20.24 75.29 -20.24 75.29 0.31 0.87 0.50 ***
20200216 08:30:00 Geo IR 75.0 -19.84 74.92 -19.84 74.92 0.14 0.39 0.10 14.8
20200216 05:30:00 * Geo Vis 75.0 -19.24 74.99 -19.24 74.99 0.07 0.20 0.30 ***
20200216 05:30:00 Geo NearIR 75.0 -19.56 75.05 -19.56 75.05 0.36 1.01 0.80 ***
20200216 05:30:00 Geo IR 75.0 -19.19 74.68 -19.19 74.68 0.26 0.73 0.60 5.5
20200216 03:03:00 Metop-A ASCAT 75.0 -18.46 74.78 -18.36 74.76 0.23 0.65 *** ***
20200216 02:30:00 Geo Vis 75.0 -18.87 74.73 -18.87 74.73 0.13 0.37 0.60 ***
20200216 02:30:00 Geo NearIR 75.0 -18.87 74.49 -18.87 74.49 0.50 1.41 0.40 ***
20200216 02:30:00 Geo IR 75.0 -18.52 74.57 -18.52 74.57 0.21 0.60 0.80 3.4
20200215 23:30:00 Geo NearIR 73.7 -18.48 74.23 -18.48 74.23 0.33 0.93 0.20 ***
20200215 23:30:00 Geo IR 73.7 -18.38 74.49 -18.38 74.49 0.20 0.57 0.60 8.4
20200215 22:57:04 SSMIS-16 85-92GHz 72.4 -18.31 74.69 -18.38 74.72 0.11 0.32 1.20 78.6
20200215 22:21:39 * GMI 85-92GHz 70.9 -18.25 74.52 -18.39 74.57 0.08 0.24 0.10 100.0
20200215 22:21:39 GMI 37GHz 70.9 -18.30 74.57 -18.44 74.63 0.11 0.31 0.20 ***
20200215 20:33:10 * AMSR2 85-92GHz 66.4 -17.91 74.45 -17.90 74.44 0.08 0.21 0.10 100.0
20200215 20:33:10 AMSR2 37GHz 66.4 -18.01 74.45 -18.00 74.44 0.12 0.33 0.40 ***
20200215 20:30:00 Geo NearIR 66.2 -17.95 74.26 -17.95 74.26 1.28 3.60 0.30 ***
20200215 20:30:00 Geo IR 66.2 -17.88 74.26 -17.88 74.26 0.14 0.40 0.20 29.4
20200215 17:30:00 Geo NearIR 58.7 -17.52 74.27 -17.52 74.27 0.58 1.64 0.10 ***
20200215 17:30:00 * Geo IR 58.7 -17.39 74.00 -17.39 74.00 0.13 0.38 0.30 10.6
20200215 17:09:00 Metop-B ASCAT 57.9 -17.15 74.14 -17.19 74.16 0.17 0.49 *** ***
20200215 15:54:00 Metop-A ASCAT 54.7 *** *** *** *** *** *** *** ***
20200215 14:30:00 Geo NearIR 51.2 -17.19 73.87 -17.19 73.87 0.20 0.56 0.10 ***
20200215 14:30:00 Geo IR 51.2 -17.02 73.89 -17.02 73.89 0.20 0.57 0.40 10.3
20200215 13:42:31 * SSMIS-17 85-92GHz 49.3 -17.21 74.23 -17.28 74.25 0.11 0.30 0.20 100.0
20200215 11:44:23 * SSMIS-16 85-92GHz 44.8 -17.18 74.15 -17.16 74.15 0.11 0.32 0.30 100.0
20200215 11:30:00 Geo Vis 44.6 -17.21 74.00 -17.21 74.00 0.25 0.70 0.60 ***
20200215 11:30:00 Geo NearIR 44.6 -17.06 74.10 -17.06 74.10 0.36 1.02 0.30 ***
20200215 11:30:00 Geo IR 44.6 -16.86 74.00 -16.86 74.00 0.17 0.48 0.20 9.4
20200215 08:30:00 * Geo Vis 42.1 -16.87 74.35 -16.87 74.35 0.09 0.26 0.60 ***
20200215 08:30:00 Geo NearIR 42.1 -16.92 74.32 -16.92 74.32 0.45 1.27 0.10 ***
20200215 08:30:00 Geo IR 42.1 -16.97 74.37 -16.97 74.37 2.32 6.55 1.00 11.5
20200215 05:30:00 * Geo Vis 39.6 -16.30 74.72 -16.30 74.72 0.10 0.29 0.30 ***
20200215 05:30:00 Geo NearIR 39.6 -16.23 74.31 -16.23 74.31 0.84 2.37 1.00 ***
20200215 05:30:00 Geo IR 39.6 -15.98 74.38 -15.98 74.38 0.43 1.22 0.10 1.1
20200215 04:36:00 Metop-B ASCAT 38.8 -16.09 74.52 -16.15 74.49 0.14 0.41 *** ***
20200215 03:21:00 * Metop-A ASCAT 37.8 -16.17 74.48 -16.12 74.52 0.14 0.39 *** ***
20200215 02:30:00 Geo Vis 37.1 *** *** *** *** *** *** 0.90 ***
20200215 02:30:00 Geo NearIR 37.1 -16.17 72.90 -16.17 72.90 1.03 2.91 0.20 ***
20200215 02:30:00 Geo IR 37.1 -15.49 74.67 -15.49 74.67 0.22 0.62 0.20 10.9
20200214 23:30:00 Geo NearIR 35.0 -17.10 74.44 -17.10 74.44 3.36 9.49 0.20 ***
20200214 23:30:00 * Geo IR 35.0 -15.55 74.67 -15.55 74.67 0.16 0.46 0.60 0.2

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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