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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
20260825 08:50:22   GOES18 IR 30 14.53 -165.52 14.53 -165.55 3.36 9.49 0.40 1
20260825 08:50:22   GOES18 SWIR 30 16.00 -164.21 16.00 -164.25 1.13 3.20 1.00 ***
20260825 06:20:17 * SSMIS-16 89-92GHz 30 16.00 -163.66 16.00 -163.59 0.28 0.79 1.50 3
20260825 05:50:21   GOES18 IR 30 15.00 -163.14 15.00 -163.18 3.36 9.49 1.00 1
20260825 05:50:21   GOES18 SWIR 30 15.15 -163.35 15.15 -163.38 3.36 9.49 0.90 ***
20260825 04:27:46 * SSMIS-17 89-92GHz 30 15.75 -163.28 15.75 -162.95 0.35 0.98 1.70 7
20260825 02:50:21   GOES18 IR 26 17.76 -162.22 17.77 -162.25 3.36 9.49 0.90 2
20260825 02:50:21   GOES18 SWIR 26 17.01 -162.74 17.02 -162.77 0.54 1.53 0.50 ***
20260824 23:50:21   GOES18 IR 28 14.62 -160.78 14.62 -160.81 3.36 9.49 0.40 2
20260824 23:50:21   GOES18 SWIR 28 14.57 -160.83 14.57 -160.87 2.07 5.86 0.20 ***
20260824 20:50:21   GOES18 IR 30 14.94 -159.52 14.94 -159.55 1.20 3.38 1.00 3
20260824 20:50:21   GOES18 SWIR 30 16.14 -161.70 16.14 -161.73 3.36 9.49 0.40 ***
20260824 18:15:44   GMI 37GHz 30 15.76 -161.06 15.75 -161.00 0.45 1.27 0.70 ***
20260824 18:15:44 * GMI 89-92GHz 30 15.61 -160.96 15.60 -160.89 0.28 0.79 1.90 25
20260824 17:50:21   GOES18 IR 30 14.44 -159.13 14.45 -159.17 3.36 9.49 0.20 0
20260824 17:50:21   GOES18 SWIR 30 14.14 -159.39 14.15 -159.43 0.92 2.59 0.30 ***
20260824 17:16:30   SSMIS-17 89-92GHz 30 15.67 -160.95 15.70 -161.15 0.38 1.07 2.50 6
20260824 14:57:24   SSMIS-18 89-92GHz 30 *** *** *** *** 0.38 1.09 2.90 1
20260824 14:50:21   GOES18 IR 30 15.54 -159.97 15.55 -160.02 3.36 9.49 0.20 33
20260824 14:50:21   GOES18 SWIR 30 15.52 -159.95 15.52 -159.99 1.07 3.03 0.30 ***
20260824 12:21:35   AMSR2 37GHz 30 15.22 -159.28 15.20 -159.18 0.38 1.07 2.70 ***
20260824 12:21:35 * AMSR2 89-92GHz 30 15.42 -159.43 15.40 -159.34 0.32 0.89 1.60 8
20260824 11:50:21   GOES18 IR 30 13.55 -158.35 13.55 -158.40 1.44 4.06 0.30 23
20260824 11:50:21   GOES18 SWIR 30 13.77 -158.79 13.78 -158.84 0.85 2.40 1.00 ***
20260824 08:50:22   GOES18 IR 30 13.66 -157.43 13.67 -157.48 0.37 1.06 0.90 17
20260824 08:50:22   GOES18 SWIR 30 13.56 -157.64 13.57 -157.69 0.47 1.33 0.50 ***
20260824 05:50:21   GOES18 IR 30 13.64 -156.80 13.64 -156.83 3.36 9.49 0.70 0
20260824 05:50:21   GOES18 SWIR 30 15.21 -157.60 15.22 -157.63 3.36 9.49 0.70 ***
20260824 04:55:44   GMI 37GHz 30 15.13 -157.54 15.15 -157.74 0.26 0.74 1.00 ***
20260824 04:55:44 * GMI 89-92GHz 30 15.33 -157.70 15.35 -157.89 0.21 0.58 0.70 29
20260824 02:50:21   GOES18 IR 35 14.93 -158.42 14.93 -158.45 3.36 9.49 1.00 1
20260824 02:50:21   GOES18 SWIR 35 14.98 -157.90 14.98 -157.93 3.36 9.49 0.60 ***
20260824 02:23:55   SSMIS-18 89-92GHz 35 15.32 -157.49 15.33 -157.60 0.29 0.83 0.20 3
20260824 00:08:31   AMSR2 37GHz 35 15.18 -156.88 15.17 -156.85 0.64 1.80 0.40 ***
20260824 00:08:31 * AMSR2 89-92GHz 35 15.28 -156.98 15.27 -156.96 0.28 0.80 1.00 3
20260823 23:50:21   GOES18 IR 35 15.12 -158.11 15.12 -158.13 3.36 9.49 0.40 0
20260823 23:50:21   GOES18 SWIR 35 15.47 -157.85 15.47 -157.87 1.27 3.59 0.80 ***
20260823 20:50:21   GOES18 IR 36 15.57 -158.35 15.57 -158.38 3.36 9.49 0.10 1
20260823 20:50:21   GOES18 SWIR 36 15.87 -158.27 15.87 -158.30 0.89 2.53 0.60 ***
20260823 17:50:21   GOES18 IR 38 15.62 -157.66 15.62 -157.70 2.11 5.98 0.30 2
20260823 17:50:21   GOES18 SWIR 38 16.09 -157.51 16.10 -157.54 0.45 1.27 0.20 ***
20260823 15:49:47   SSMIS-17 89-92GHz 39 *** *** *** *** 0.33 0.94 1.60 2
20260823 15:11:29   SSMIS-18 89-92GHz 39 16.65 -155.67 16.65 -155.62 0.29 0.81 2.10 20
20260823 14:50:21   GOES18 IR 40 15.01 -156.80 15.01 -156.83 3.36 9.49 0.20 1
20260823 14:50:21   GOES18 SWIR 40 16.31 -156.54 16.31 -156.58 0.49 1.40 0.40 ***
20260823 11:50:21   GOES18 IR 40 13.71 -152.81 13.70 -152.86 3.36 9.49 1.00 1
20260823 11:50:21   GOES18 SWIR 40 16.36 -155.85 16.35 -155.89 3.36 9.49 1.00 ***
20260823 11:38:44   AMSR2 37GHz 40 15.10 -154.21 15.09 -154.31 0.27 0.76 1.10 ***
20260823 11:38:44   AMSR2 89-92GHz 40 15.10 -154.16 15.09 -154.25 0.24 0.67 1.40 29
20260823 08:50:21   GOES18 IR 40 14.30 -151.53 14.30 -151.58 3.36 9.49 0.10 3
20260823 08:50:21   GOES18 SWIR 40 14.25 -151.59 14.25 -151.63 0.48 1.36 0.40 ***
20260823 05:50:21   GOES18 IR 40 13.65 -151.65 13.65 -151.69 1.34 3.80 0.30 7
20260823 05:50:21   GOES18 SWIR 40 13.92 -151.24 13.92 -151.27 0.70 1.97 1.00 ***
20260823 05:06:10 * SSMIS-16 89-92GHz 40 15.37 -152.50 15.37 -152.68 0.26 0.72 1.80 9
20260823 02:50:21   GOES18 IR 45 13.32 -151.34 13.32 -151.37 0.55 1.56 0.70 11
20260823 02:50:21   GOES18 SWIR 45 13.45 -151.08 13.45 -151.12 0.36 1.01 0.20 ***
20260823 02:38:36   SSMIS-18 89-92GHz 45 15.21 -152.14 15.21 -152.21 0.34 0.96 0.50 6
20260822 23:50:21   GOES18 IR 45 13.07 -152.03 13.08 -152.05 3.36 9.49 0.60 2
20260822 23:50:21   GOES18 SWIR 45 13.27 -150.61 13.28 -150.63 3.36 9.49 0.60 ***
20260822 23:25:19   AMSR2 37GHz 45 14.84 -151.30 14.88 -151.39 0.28 0.79 3.00 ***
20260822 23:25:19 * AMSR2 89-92GHz 45 15.19 -151.40 15.23 -151.49 0.27 0.78 2.40 5
20260822 20:50:21   GOES18 IR 48 16.08 -152.94 16.09 -152.97 3.36 9.49 0.70 1
20260822 20:50:21   GOES18 SWIR 48 13.13 -150.72 13.14 -150.74 1.48 4.19 0.30 ***
20260822 18:05:44   GMI 37GHz 46 14.36 -149.98 14.35 -149.97 0.18 0.52 3.70 ***
20260822 18:05:44   GMI 89-92GHz 46 14.96 -150.66 14.95 -150.64 0.41 1.15 3.00 2
20260822 17:50:21   GOES18 IR 46 16.37 -152.11 16.37 -152.14 3.36 9.49 0.60 4
20260822 17:50:21   GOES18 SWIR 46 15.09 -150.51 15.10 -150.53 0.97 2.74 0.10 ***
20260822 16:03:54 * SSMIS-17 89-92GHz 45 15.11 -149.86 15.07 -149.70 0.34 0.96 1.40 13
20260822 14:50:21   GOES18 IR 43 13.20 -148.87 13.21 -148.90 2.48 7.01 0.10 7
20260822 14:50:21   GOES18 SWIR 43 13.10 -149.03 13.11 -149.05 0.63 1.78 0.40 ***
20260822 11:50:21   GOES18 IR 41 14.37 -151.49 14.39 -151.52 1.12 3.15 1.00 3
20260822 11:50:21 * GOES18 SWIR 41 15.02 -149.58 15.04 -149.61 0.37 1.05 0.10 ***
20260822 08:50:21   GOES18 IR 43 14.85 -151.34 14.87 -151.37 1.50 4.24 0.20 1
20260822 08:50:21   GOES18 SWIR 43 16.03 -150.44 16.04 -150.47 1.79 5.05 0.20 ***
20260822 05:50:21   GOES18 IR 41 15.16 -150.59 15.17 -150.61 1.17 3.30 0.80 2
20260822 05:50:21 * GOES18 SWIR 41 15.29 -150.51 15.30 -150.53 0.43 1.20 0.70 ***
20260822 02:50:20   GOES18 IR 43 14.68 -150.25 14.68 -150.28 3.36 9.49 0.60 2
20260822 02:50:20 * GOES18 SWIR 43 15.43 -149.94 15.43 -149.97 0.65 1.84 0.40 ***
20260821 22:41:59   AMSR2 37GHz 38 *** *** *** *** 0.50 1.42 5.00 ***
20260821 22:41:59   AMSR2 89-92GHz 38 *** *** *** *** 0.59 1.66 5.00 0
20260821 20:50:21   GOES18 IR 33 12.85 -148.41 12.85 -148.44 3.36 9.49 0.40 0
20260821 20:50:21   GOES18 SWIR 33 12.87 -147.38 12.87 -147.41 3.36 9.49 0.10 ***
20260821 17:50:21   GOES18 IR 31 13.61 -148.40 13.63 -148.43 3.36 9.49 0.70 0
20260821 17:50:21 * GOES18 SWIR 31 14.01 -148.35 14.03 -148.38 0.74 2.09 0.80 ***
20260821 16:28:22   SSMIS-16 89-92GHz 30 *** *** *** *** 0.49 1.39 5.00 0
20260821 16:18:41   SSMIS-17 89-92GHz 30 13.73 -145.86 13.62 -145.62 0.53 1.50 1.00 3
20260821 14:50:21   GOES18 IR 33 12.86 -147.92 12.87 -147.95 3.36 9.49 0.80 1
20260821 14:50:21   GOES18 SWIR 33 13.06 -146.69 13.07 -146.72 1.50 4.25 0.20 ***
20260821 14:00:35   SSMIS-18 89-92GHz 32 13.16 -145.60 13.24 -145.78 0.55 1.55 2.20 1
20260821 11:51:18 * AMSR2 37GHz 30 13.19 -145.64 13.20 -145.65 0.29 0.83 0.30 ***
20260821 11:51:18   AMSR2 89-92GHz 30 13.19 -145.59 13.20 -145.60 0.43 1.22 0.90 4
20260821 11:50:21   GOES18 IR 31 13.11 -145.72 13.12 -145.73 3.36 9.49 1.00 15
20260821 11:50:21   GOES18 SWIR 31 13.03 -145.75 13.04 -145.76 3.36 9.49 1.00 ***
20260821 08:50:20   GOES18 IR 33 12.98 -144.79 12.98 -144.80 3.36 9.49 0.70 12
20260821 08:50:20   GOES18 SWIR 33 12.90 -144.94 12.91 -144.95 0.44 1.26 0.30 ***
20260821 05:50:20   GOES18 IR 31 12.86 -144.58 12.87 -144.60 3.36 9.49 0.10 1
20260821 05:50:20   GOES18 SWIR 31 12.94 -144.79 12.94 -144.80 0.73 2.06 0.20 ***
20260821 05:25:44 * GMI 37GHz 31 12.95 -144.69 12.96 -144.74 0.22 0.62 0.90 ***
20260821 05:25:44   GMI 89-92GHz 31 13.20 -144.38 13.21 -144.44 0.30 0.85 1.30 7
20260821 03:42:24   SSMIS-17 89-92GHz 30 12.98 -144.32 12.97 -144.25 0.33 0.93 0.50 6
20260821 02:50:20   GOES18 IR 33 11.86 -142.84 11.87 -142.85 3.36 9.49 1.00 5
20260821 02:50:20   GOES18 SWIR 33 11.71 -142.91 11.72 -142.93 0.57 1.62 0.70 ***
20260821 01:25:08   SSMIS-18 89-92GHz 32 12.81 -143.88 12.78 -143.74 0.35 1.00 0.40 6
20260820 23:50:20   GOES18 IR 31 11.69 -144.88 11.70 -144.91 3.36 9.49 0.50 3
20260820 23:50:20   GOES18 SWIR 31 11.21 -142.77 11.23 -142.81 0.86 2.44 0.20 ***
20260820 23:36:57   AMSR2 37GHz 30 *** *** *** *** 0.59 1.67 5.00 ***
20260820 23:36:57   AMSR2 89-92GHz 30 *** *** *** *** 0.60 1.70 5.00 0
20260820 20:50:21   GOES18 IR 33 10.85 -142.58 10.87 -142.61 0.41 1.16 1.00 44
20260820 20:50:21   GOES18 SWIR 33 10.75 -142.66 10.77 -142.69 0.39 1.11 1.00 ***
20260820 17:55:45 * GMI 37GHz 31 10.67 -142.15 10.68 -142.16 0.20 0.56 0.90 ***
20260820 17:55:45   GMI 89-92GHz 31 12.07 -143.32 12.08 -143.33 0.54 1.53 2.50 2
20260820 17:50:20   GOES18 IR 31 11.51 -142.34 11.53 -142.36 3.36 9.49 0.40 10
20260820 17:50:20   GOES18 SWIR 31 10.71 -142.05 10.73 -142.08 0.66 1.87 0.30 ***
20260820 14:50:20   GOES18 IR 30 10.69 -141.44 10.71 -141.46 3.36 9.49 0.10 10
20260820 14:50:20   GOES18 SWIR 30 10.59 -142.13 10.61 -142.15 0.69 1.94 0.60 ***
20260820 14:15:45   SSMIS-18 89-92GHz 30 11.60 -142.67 11.68 -142.77 0.50 1.41 4.70 2
20260820 11:08:33   AMSR2 37GHz 30 *** *** *** *** 0.31 0.88 0.90 ***
20260820 11:08:33   AMSR2 89-92GHz 30 *** *** *** *** 0.43 1.21 2.50 5

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: ARCHER Track page

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