-- 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
20201211 17:30:00 Geo NearIR 30.3 *** *** *** *** *** *** 0.50 ***
20201211 17:30:00 Geo IR 30.3 *** *** *** *** *** *** 0.80 ***
20201211 14:30:00 Geo NearIR 31.9 *** *** *** *** *** *** 0.10 ***
20201211 14:30:00 Geo IR 31.9 *** *** *** *** *** *** 0.90 ***
20201211 14:12:43 SSMIS-17 85-92GHz 32.1 *** *** *** *** *** *** 1.00 ***
20201211 12:29:36 SSMIS-18 85-92GHz 33.1 *** *** *** *** *** *** 2.90 ***
20201211 11:30:00 * Geo Vis 33.6 -22.53 71.96 -22.53 71.96 1.21 3.41 1.00 ***
20201211 11:30:00 Geo NearIR 33.6 -22.23 73.31 -22.23 73.31 1.70 4.82 0.80 ***
20201211 11:30:00 Geo IR 33.6 *** *** *** *** *** *** 1.00 ***
20201211 08:30:00 * Geo Vis 35.0 -22.41 72.57 -22.41 72.57 0.78 2.21 1.00 ***
20201211 08:30:00 Geo NearIR 35.0 -21.86 73.97 -21.86 73.97 3.36 9.49 0.90 ***
20201211 08:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.70 ***
20201211 08:24:28 AMSR2 85-92GHz 35.0 *** *** *** *** *** *** 1.70 ***
20201211 08:24:28 AMSR2 37GHz 35.0 *** *** *** *** *** *** 3.00 ***
20201211 05:30:00 Geo Vis 35.0 -22.47 73.34 -22.47 73.34 0.91 2.57 1.00 ***
20201211 05:30:00 Geo NearIR 35.0 -22.17 74.55 -22.17 74.55 1.97 5.56 0.70 ***
20201211 05:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.30 ***
20201211 04:30:00 * Metop-B ASCAT 35.0 -21.31 74.69 -21.27 74.58 0.16 0.46 *** ***
20201211 02:30:00 Geo Vis 35.0 -22.84 73.20 -22.84 73.20 0.63 1.77 0.10 ***
20201211 02:30:00 Geo NearIR 35.0 -22.74 74.55 -22.74 74.55 3.36 9.49 0.10 ***
20201211 02:30:00 Geo IR 35.0 *** *** *** *** *** *** 0.20 ***
20201211 01:40:54 SSMIS-17 85-92GHz 35.0 -21.21 74.97 -21.17 74.90 0.35 0.99 2.50 1.7
20201210 23:57:27 SSMIS-18 85-92GHz 35.0 -21.96 74.52 -21.98 74.55 0.48 1.35 2.50 0.8
20201210 23:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.90 ***
20201210 23:30:00 Geo IR 35.0 -22.36 73.66 -22.36 73.66 3.36 9.49 0.80 1.1
20201210 20:30:00 Geo NearIR 35.0 *** *** *** *** *** *** 0.40 ***
20201210 20:30:00 * Geo IR 35.0 -23.88 75.97 -23.88 75.97 0.18 0.51 1.00 8.5
20201210 20:14:41 AMSR2 85-92GHz 35.0 -21.87 75.85 -21.86 75.84 0.53 1.50 2.90 1.3
20201210 20:14:41 AMSR2 37GHz 35.0 -22.77 75.64 -22.76 75.62 0.41 1.15 2.50 ***
20201210 17:30:00 Geo NearIR 35.2 -23.87 76.13 -23.87 76.13 3.36 9.49 0.70 ***
20201210 17:30:00 * Geo IR 35.2 -23.80 75.70 -23.80 75.70 0.16 0.46 0.50 -2.3
20201210 17:21:00 Metop-B ASCAT 35.3 *** *** *** *** *** *** *** ***
20201210 16:06:00 Metop-A ASCAT 35.8 -21.70 75.91 -21.75 75.80 0.20 0.56 *** ***
20201210 14:30:00 Geo NearIR 36.5 -23.61 75.91 -23.61 75.91 0.62 1.74 0.40 ***
20201210 14:30:00 * Geo IR 36.5 -23.48 75.69 -23.48 75.69 0.29 0.83 0.10 2.2
20201210 11:30:00 Geo Vis 37.7 -23.64 75.61 -23.64 75.61 0.39 1.11 0.40 ***
20201210 11:30:00 Geo NearIR 37.7 *** *** *** *** *** *** 0.70 ***
20201210 11:30:00 Geo IR 37.7 -23.59 76.01 -23.59 76.01 0.43 1.21 0.10 2.9
20201210 08:30:00 Geo Vis 39.0 *** *** *** *** *** *** 0.50 ***
20201210 08:30:00 Geo NearIR 39.0 *** *** *** *** *** *** 0.20 ***
20201210 08:30:00 Geo IR 39.0 -23.07 75.45 -23.07 75.45 3.36 9.49 0.10 0.7
20201210 05:30:00 * Geo Vis 40.0 -22.65 75.97 -22.65 75.97 0.33 0.93 0.20 ***
20201210 05:30:00 Geo NearIR 40.0 -22.70 76.78 -22.70 76.78 0.53 1.50 0.20 ***
20201210 05:30:00 Geo IR 40.0 -22.70 75.97 -22.70 75.97 0.58 1.65 0.80 3.3
20201210 04:51:00 Metop-B ASCAT 40.0 *** *** *** *** *** *** *** ***
20201210 03:36:00 * Metop-A ASCAT 40.0 -21.16 76.15 -21.09 76.14 0.16 0.44 *** ***
20201210 02:30:00 Geo Vis 40.0 -22.34 76.43 -22.34 76.43 0.29 0.81 0.40 ***
20201210 02:30:00 Geo NearIR 40.0 -22.49 76.68 -22.49 76.68 0.73 2.06 1.00 ***
20201210 02:30:00 Geo IR 40.0 -22.24 76.30 -22.24 76.30 0.17 0.49 0.50 3.4
20201210 01:54:00 SSMIS-17 85-92GHz 40.0 *** *** *** *** *** *** 3.00 ***
20201209 23:30:00 Geo NearIR 40.0 -22.10 76.48 -22.10 76.48 0.50 1.41 0.10 ***
20201209 23:30:00 * Geo IR 40.0 -22.05 76.27 -22.05 76.27 0.17 0.48 0.10 20.7
20201209 20:30:00 Geo NearIR 40.0 *** *** *** *** *** *** 1.00 ***
20201209 20:30:00 Geo IR 40.0 -22.13 76.15 -22.13 76.15 3.36 9.49 0.10 0.4
20201209 17:30:00 Geo NearIR 40.2 *** *** *** *** *** *** 0.10 ***
20201209 17:30:00 Geo IR 40.2 *** *** *** *** *** *** 0.20 ***
20201209 16:00:00 * Metop-B ASCAT 40.8 -20.39 76.14 -20.37 76.14 0.14 0.41 *** ***
20201209 14:30:00 Geo NearIR 41.5 -21.93 76.98 -21.93 76.98 0.62 1.74 0.20 ***
20201209 14:30:00 Geo IR 41.5 -22.01 76.60 -22.01 76.60 0.23 0.66 0.10 7.8
20201209 11:30:00 Geo Vis 42.7 -21.69 76.30 -21.69 76.30 1.08 3.05 0.40 ***
20201209 11:30:00 Geo NearIR 42.7 -21.59 76.43 -21.59 76.43 0.61 1.71 0.20 ***
20201209 11:30:00 Geo IR 42.7 -21.74 76.09 -21.74 76.09 0.27 0.76 0.70 -3.8
20201209 11:08:45 SSMIS-16 85-92GHz 42.9 -21.73 76.28 -21.73 76.27 0.49 1.39 1.60 1.3
20201209 08:37:06 AMSR2 85-92GHz 43.9 -21.02 76.40 -21.02 76.40 0.30 0.85 0.70 8.5
20201209 08:37:06 AMSR2 37GHz 43.9 -21.37 76.40 -21.37 76.40 0.26 0.73 3.00 ***
20201209 08:30:00 * Geo Vis 44.0 -21.12 76.21 -21.12 76.21 0.18 0.51 0.40 ***
20201209 08:30:00 Geo NearIR 44.0 -21.07 76.43 -21.07 76.43 0.37 1.04 0.20 ***
20201209 08:30:00 Geo IR 44.0 -20.87 76.11 -20.87 76.11 0.19 0.55 0.20 18.7
20201209 05:30:00 * Geo Vis 45.4 -20.89 76.59 -20.89 76.59 0.09 0.26 0.90 ***
20201209 05:30:00 Geo NearIR 45.4 -20.86 76.38 -20.86 76.38 1.02 2.89 0.20 ***
20201209 05:30:00 Geo IR 45.4 -20.24 76.19 -20.24 76.19 0.21 0.60 0.70 13.6
20201209 03:33:00 Metop-B ASCAT 47.0 *** *** *** *** *** *** *** ***
20201209 02:30:00 Geo Vis 47.9 -20.36 76.50 -20.36 76.50 0.15 0.42 0.50 ***
20201209 02:30:00 Geo NearIR 47.9 -20.44 76.29 -20.44 76.29 3.36 9.49 0.20 ***
20201209 02:30:00 Geo IR 47.9 -20.11 75.92 -20.11 75.92 0.18 0.51 0.50 1.9
20201208 23:30:00 Geo NearIR 50.4 -20.22 76.59 -20.22 76.59 0.44 1.23 0.30 ***
20201208 23:30:00 * Geo IR 50.4 -19.80 76.17 -19.80 76.17 0.12 0.35 0.30 4.7
20201208 22:35:46 * SSMIS-16 85-92GHz 51.2 -19.54 76.68 -19.71 76.61 0.14 0.39 0.20 85.6
20201208 20:30:00 Geo NearIR 52.9 -19.67 76.56 -19.67 76.56 0.27 0.76 0.10 ***
20201208 20:30:00 Geo IR 52.9 -19.22 76.45 -19.22 76.45 0.17 0.48 0.10 31.2
20201208 20:26:04 AMSR2 85-92GHz 53.0 -19.35 76.77 -19.37 76.77 0.18 0.51 0.10 82.6
20201208 20:26:04 AMSR2 37GHz 53.0 -19.05 76.45 -19.07 76.45 0.24 0.68 0.20 ***
20201208 17:30:00 Geo NearIR 55.0 -18.49 76.10 -18.49 76.10 0.44 1.26 0.10 ***
20201208 17:30:00 * Geo IR 55.0 -18.66 76.42 -18.66 76.42 0.19 0.53 0.10 48.9
20201208 16:21:00 Metop-B ASCAT 55.0 *** *** *** *** *** *** *** ***
20201208 15:09:00 * Metop-A ASCAT 55.0 -17.95 76.84 -17.84 76.90 0.16 0.46 *** ***
20201208 14:30:00 Geo NearIR 55.0 -18.45 76.72 -18.45 76.72 0.68 1.91 0.50 ***
20201208 14:30:00 Geo IR 55.0 -18.10 76.48 -18.10 76.48 0.18 0.52 0.40 24.2
20201208 13:12:47 SSMIS-17 85-92GHz 55.0 -18.18 77.24 -18.40 77.11 0.19 0.55 0.60 69.8
20201208 11:30:00 Geo Vis 55.0 -18.00 76.83 -18.00 76.83 0.19 0.55 0.20 ***
20201208 11:30:00 Geo NearIR 55.0 -18.03 77.09 -18.03 77.09 0.31 0.89 1.00 ***
20201208 11:30:00 Geo IR 55.0 -17.93 76.91 -17.93 76.91 0.19 0.54 0.10 44.7
20201208 11:27:25 * SSMIS-18 85-92GHz 55.0 -17.72 77.38 -17.73 77.38 0.10 0.28 0.30 100.0
20201208 08:30:00 Geo Vis 55.0 -17.51 77.19 -17.51 77.19 0.26 0.74 0.60 ***
20201208 08:30:00 Geo NearIR 55.0 -16.93 77.38 -16.93 77.38 0.37 1.05 0.60 ***
20201208 08:30:00 Geo IR 55.0 -16.73 77.30 -16.73 77.30 0.47 1.33 0.30 1.4
20201208 05:30:00 * Geo Vis 54.6 -16.66 77.72 -16.66 77.72 0.13 0.36 0.50 ***
20201208 05:30:00 Geo NearIR 54.6 -16.89 77.77 -16.89 77.77 0.43 1.23 1.00 ***
20201208 05:30:00 Geo IR 54.6 -16.59 77.56 -16.59 77.56 0.22 0.62 0.40 7.5
20201208 03:51:00 Metop-B ASCAT 53.2 *** *** *** *** *** *** *** ***
20201208 02:36:00 Metop-A ASCAT 52.2 -16.09 78.51 -16.08 78.53 0.16 0.44 *** ***
20201208 02:30:00 * Geo Vis 52.1 -16.53 78.61 -16.53 78.61 0.10 0.27 0.80 ***
20201208 02:30:00 Geo NearIR 52.1 -16.61 78.32 -16.61 78.32 0.32 0.89 0.90 ***
20201208 02:30:00 Geo IR 52.1 -16.36 78.27 -16.36 78.27 0.12 0.35 0.10 13.6
20201208 00:38:19 SSMIS-17 85-92GHz 50.5 -16.17 78.88 -16.05 79.07 0.15 0.42 0.50 88.5
20201207 23:30:00 Geo NearIR 49.6 -15.80 78.60 -15.80 78.60 0.39 1.10 0.10 ***
20201207 23:30:00 * Geo IR 49.6 -15.87 78.73 -15.87 78.73 0.13 0.37 0.10 16.4
20201207 22:52:32 SSMIS-18 85-92GHz 49.1 -16.03 79.28 -16.09 79.18 0.15 0.42 0.30 87.7
20201207 22:47:33 SSMIS-16 85-92GHz 49.0 -15.97 79.25 -16.04 79.13 0.15 0.42 0.30 84.4
20201207 20:30:00 Geo NearIR 47.1 -15.66 78.91 -15.66 78.91 1.15 3.24 0.10 ***
20201207 20:30:00 Geo IR 47.1 -15.58 78.99 -15.58 78.99 0.21 0.60 1.00 -1.5
20201207 19:42:13 AMSR2 85-92GHz 46.4 -15.66 79.46 -15.73 79.33 0.13 0.37 0.70 100.0
20201207 19:42:13 * AMSR2 37GHz 46.4 -15.66 79.62 -15.73 79.49 0.13 0.36 0.30 ***
20201207 17:30:00 Geo NearIR 44.6 -15.66 79.66 -15.66 79.66 0.43 1.21 0.30 ***
20201207 17:30:00 * Geo IR 44.6 -15.56 79.48 -15.56 79.48 0.10 0.29 0.50 -0.2
20201207 16:42:00 Metop-B ASCAT 43.9 -14.99 80.15 -15.06 80.03 0.15 0.43 *** ***
20201207 15:30:00 Metop-A ASCAT 42.9 -14.94 80.34 -14.86 80.50 0.15 0.43 *** ***
20201207 14:30:00 Geo NearIR 42.1 -15.73 80.06 -15.73 80.06 0.45 1.27 0.20 ***
20201207 14:30:00 * Geo IR 42.1 -15.46 79.93 -15.46 79.93 0.15 0.41 0.40 -5.2
20201207 13:26:40 SSMIS-17 85-92GHz 41.2 -15.48 80.93 -15.56 80.76 0.46 1.29 0.80 9.6
20201207 11:40:39 SSMIS-18 85-92GHz 39.7 -15.29 81.16 -15.28 81.18 0.32 0.91 0.60 31.1
20201207 11:30:00 Geo Vis 39.6 -16.25 80.30 -16.25 80.30 0.26 0.74 0.60 ***
20201207 11:30:00 Geo NearIR 39.6 -15.43 80.64 -15.43 80.64 0.55 1.56 0.80 ***
20201207 11:30:00 * Geo IR 39.6 -15.30 80.69 -15.30 80.69 0.24 0.68 1.00 37.0
20201207 08:30:00 Geo Vis 37.1 -15.41 81.76 -15.41 81.76 1.81 5.13 0.90 ***
20201207 08:30:00 Geo NearIR 37.1 -15.76 81.81 -15.76 81.81 0.78 2.20 1.00 ***
20201207 08:30:00 Geo IR 37.1 -15.71 81.79 -15.71 81.79 3.36 9.49 1.00 0.1
20201207 05:30:00 * Geo Vis 35.0 -15.12 81.83 -15.12 81.83 0.29 0.81 1.00 ***
20201207 05:30:00 Geo NearIR 35.0 -15.07 81.60 -15.07 81.60 3.12 8.82 0.40 ***
20201207 05:30:00 Geo IR 35.0 -15.57 82.03 -15.57 82.03 1.24 3.50 0.90 0.6

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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