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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
20260706 02:30:00   HIMAWARI9 IR 17 26.66 107.46 26.73 107.49 3.36 9.49 1.00 1
20260706 02:30:00   HIMAWARI9 SWIR 17 26.88 107.57 26.96 107.60 1.95 5.50 0.70 ***
20260705 23:30:00   HIMAWARI9 IR 20 26.94 109.46 27.01 109.49 3.36 9.49 0.10 8
20260705 23:30:00   HIMAWARI9 SWIR 20 26.71 109.41 26.79 109.43 3.36 9.49 0.90 ***
20260705 22:40:00   Metop-A ASCAT 21 *** *** *** *** *** *** *** ***
20260705 22:29:55   SSMIS-17 89-92GHz 21 *** *** *** *** 0.37 1.06 0.40 6
20260705 21:49:15   SSMIS-18 89-92GHz 21 *** *** *** *** 0.25 0.70 1.00 1
20260705 20:20:00   HIMAWARI9 IR 22 24.68 107.15 24.77 107.19 1.23 3.48 0.30 2
20260705 20:20:00   HIMAWARI9 SWIR 22 26.03 110.00 26.12 110.04 1.09 3.09 0.10 ***
20260705 19:06:24   AMSR2 37GHz 24 *** *** *** *** 0.61 1.72 5.00 ***
20260705 19:06:24   AMSR2 89-92GHz 24 *** *** *** *** 0.61 1.74 5.00 0
20260705 17:30:00   HIMAWARI9 IR 25 24.92 109.21 25.01 109.24 3.36 9.49 0.30 5
20260705 17:30:00   HIMAWARI9 SWIR 25 24.97 109.23 25.06 109.27 3.36 9.49 0.80 ***
20260705 14:30:00   HIMAWARI9 IR 27 24.52 109.19 24.60 109.22 3.36 9.49 0.20 13
20260705 14:30:00 * HIMAWARI9 SWIR 27 24.57 109.13 24.65 109.17 0.88 2.50 0.30 ***
20260705 13:35:30   Metop-A ASCAT 28 *** *** *** *** *** *** *** ***
20260705 11:56:45   SSMIS-16 89-92GHz 30 *** *** *** *** 0.39 1.10 3.50 5
20260705 11:30:00 * HIMAWARI9 IR 30 24.23 109.54 24.31 109.57 0.86 2.43 0.10 47
20260705 11:30:00   HIMAWARI9 SWIR 30 23.95 108.99 24.04 109.02 1.48 4.18 0.10 ***
20260705 09:20:29   SSMIS-18 89-92GHz 32 *** *** *** *** 0.63 1.77 5.00 0
20260705 08:30:00   HIMAWARI9 IR 32 22.92 109.25 23.00 109.28 3.36 9.49 0.10 4
20260705 08:30:00 * HIMAWARI9 SWIR 32 23.07 109.19 23.15 109.23 0.85 2.41 0.10 ***
20260705 05:30:00 * HIMAWARI9 IR 35 22.83 108.66 22.89 108.68 0.46 1.30 0.20 62
20260705 05:30:00   HIMAWARI9 SWIR 35 22.63 108.96 22.69 108.97 0.70 1.98 0.10 ***
20260705 02:49:00   Metop-C ASCAT 40 20.81 108.61 20.83 108.62 3.36 9.49 *** ***
20260705 02:30:00   HIMAWARI9 IR 40 22.43 108.36 22.48 108.38 0.49 1.40 0.20 56
20260705 02:30:00 * HIMAWARI9 SWIR 40 22.38 108.39 22.43 108.40 0.46 1.30 0.10 ***
20260705 02:23:30   Metop-A ASCAT 41 20.82 108.65 20.88 108.67 3.36 9.49 *** ***
20260704 23:30:00   HIMAWARI9 IR 45 21.96 108.19 22.01 108.20 1.14 3.24 0.30 49
20260704 23:30:00   HIMAWARI9 SWIR 45 21.96 108.24 22.01 108.26 0.60 1.71 0.30 ***
20260704 22:45:21 * SSMIS-17 89-92GHz 47 22.18 108.22 22.32 108.26 0.13 0.38 0.80 80
20260704 20:30:00   HIMAWARI9 IR 50 22.10 107.71 22.15 107.73 3.36 9.49 0.20 10
20260704 20:30:00   HIMAWARI9 SWIR 50 21.60 108.63 21.65 108.65 3.36 9.49 0.30 ***
20260704 18:24:25   AMSR2 37GHz 50 21.58 107.86 21.54 107.84 0.34 0.96 2.00 ***
20260704 18:24:25 * AMSR2 89-92GHz 50 21.63 107.91 21.59 107.90 0.11 0.30 0.70 99
20260704 18:23:30   Metop-C ASCAT 44 *** *** *** *** *** *** *** ***
20260704 17:30:00   HIMAWARI9 IR 45 21.24 108.33 21.27 108.34 3.36 9.49 0.10 0
20260704 17:30:00   HIMAWARI9 SWIR 45 21.47 108.20 21.49 108.21 3.36 9.49 0.20 ***
20260704 14:59:54   GMI 37GHz 50 21.40 107.85 21.40 107.85 0.19 0.52 0.20 ***
20260704 14:59:54   GMI 89-92GHz 50 21.40 107.85 21.40 107.85 0.12 0.35 0.40 92
20260704 14:20:30   Metop-C ASCAT 50 *** *** *** *** *** *** *** ***
20260704 14:20:00   HIMAWARI9 IR 50 21.00 108.53 21.03 108.54 0.41 1.16 0.10 7
20260704 14:20:00   HIMAWARI9 SWIR 50 21.13 108.74 21.16 108.75 0.39 1.11 0.10 ***
20260704 13:55:00   Metop-A ASCAT 50 *** *** *** *** *** *** *** ***
20260704 11:39:58   SSMIS-16 89-92GHz 42 *** *** *** *** 0.40 1.13 0.40 6
20260704 11:30:00   HIMAWARI9 IR 42 20.98 108.25 21.04 108.25 2.54 7.19 0.10 2
20260704 11:30:00   HIMAWARI9 SWIR 42 20.35 108.19 20.41 108.19 2.68 7.57 0.30 ***
20260704 10:14:06   SSMIS-17 89-92GHz 43 *** *** *** *** 0.43 1.20 1.00 6
20260704 08:30:00   HIMAWARI9 IR 45 22.58 106.64 22.63 106.64 3.36 9.49 0.90 2
20260704 08:30:00   HIMAWARI9 SWIR 45 22.53 106.56 22.58 106.56 0.86 2.44 0.50 ***
20260704 06:14:21   AMSR2 37GHz 46 20.72 107.93 20.69 107.93 0.25 0.70 0.50 ***
20260704 06:14:21 * AMSR2 89-92GHz 46 20.67 107.72 20.64 107.72 0.23 0.66 1.30 70
20260704 05:30:00   HIMAWARI9 IR 46 20.25 108.58 20.28 108.53 3.36 9.49 0.10 1
20260704 05:30:00   HIMAWARI9 SWIR 46 19.95 108.45 19.98 108.40 0.50 1.41 0.20 ***
20260704 02:43:00   Metop-A ASCAT 45 *** *** *** *** *** *** *** ***
20260704 02:30:00   HIMAWARI9 IR 45 21.40 106.58 21.43 106.53 1.11 3.15 0.20 55
20260704 02:30:00   HIMAWARI9 SWIR 45 20.37 108.37 20.41 108.32 0.94 2.65 0.10 ***
20260704 00:25:47   SSMIS-16 89-92GHz 41 20.50 108.35 20.47 108.39 0.40 1.13 1.80 7
20260703 23:30:00   HIMAWARI9 IR 41 21.89 106.79 21.93 106.77 1.06 3.00 1.00 3
20260703 23:30:00   HIMAWARI9 SWIR 41 21.89 106.79 21.93 106.77 0.83 2.36 0.10 ***
20260703 22:59:53 * SSMIS-17 89-92GHz 41 20.24 107.87 20.30 107.82 0.37 1.04 1.30 13
20260703 20:39:06   SSMIS-18 89-92GHz 43 19.59 108.31 19.61 108.29 0.52 1.47 5.00 0
20260703 20:30:00   HIMAWARI9 IR 40 21.39 106.88 21.42 106.86 2.48 7.02 0.70 6
20260703 20:30:00 * HIMAWARI9 SWIR 40 21.39 106.88 21.42 106.86 0.49 1.40 0.70 ***
20260703 17:30:00   HIMAWARI9 IR 41 18.84 108.04 18.95 107.98 3.36 9.49 0.20 12
20260703 17:30:00   HIMAWARI9 SWIR 41 20.82 108.07 20.92 108.00 0.54 1.51 0.30 ***
20260703 15:44:55   GMI 37GHz 40 *** *** *** *** 0.17 0.47 0.80 ***
20260703 15:44:55   GMI 89-92GHz 40 *** *** *** *** 0.34 0.95 1.30 3
20260703 14:30:00   HIMAWARI9 IR 40 19.62 107.83 19.73 107.76 3.36 9.49 0.80 3
20260703 14:30:00   HIMAWARI9 SWIR 40 20.57 108.49 20.68 108.42 0.60 1.68 0.30 ***
20260703 11:30:00   HIMAWARI9 IR 35 19.92 108.13 19.99 108.12 0.86 2.42 0.40 31
20260703 11:30:00 * HIMAWARI9 SWIR 35 19.92 108.21 19.99 108.20 0.27 0.76 1.00 ***
20260703 11:17:30   Metop-C ASCAT 35 *** *** *** *** *** *** *** ***
20260703 10:27:17   SSMIS-17 89-92GHz 35 *** *** *** *** 0.42 1.20 2.60 5
20260703 08:30:00   HIMAWARI9 IR 35 18.70 107.56 18.77 107.54 3.36 9.49 0.50 18
20260703 08:30:00   HIMAWARI9 SWIR 35 17.10 109.45 17.17 109.43 0.65 1.84 0.20 ***
20260703 05:30:41   AMSR2 37GHz 35 *** *** *** *** 0.33 0.93 1.10 ***
20260703 05:30:41   AMSR2 89-92GHz 35 *** *** *** *** 0.34 0.96 5.00 0
20260703 05:30:00   HIMAWARI9 IR 35 16.78 110.13 16.80 110.10 3.36 9.49 0.10 0
20260703 05:30:00   HIMAWARI9 SWIR 35 17.13 109.45 17.15 109.42 1.27 3.59 0.20 ***
20260703 02:30:00   HIMAWARI9 IR 35 16.74 109.18 16.77 109.14 3.36 9.49 0.30 1
20260703 02:30:00   HIMAWARI9 SWIR 35 16.99 109.10 17.02 109.06 3.36 9.49 0.30 ***
20260703 02:19:54   GMI 37GHz 32 17.99 110.38 18.02 110.33 0.31 0.89 1.40 ***
20260703 02:19:54   GMI 89-92GHz 32 18.39 110.38 18.42 110.33 0.39 1.11 2.20 5
20260703 01:50:30   Metop-C ASCAT 35 17.46 110.03 17.52 109.96 0.13 0.37 *** ***
20260703 01:25:00   Metop-A ASCAT 32 17.48 110.08 17.41 110.18 0.13 0.38 *** ***
20260702 23:20:00   HIMAWARI9 IR 31 19.31 108.71 19.30 108.67 0.52 1.47 0.30 11
20260702 23:20:00   HIMAWARI9 SWIR 31 19.31 108.71 19.30 108.67 0.43 1.20 0.40 ***
20260702 23:15:08   SSMIS-17 89-92GHz 31 19.09 109.51 19.08 109.47 0.47 1.34 2.90 1
20260702 22:28:00   Metop-C ASCAT 30 *** *** *** *** *** *** *** ***
20260702 20:53:58   SSMIS-18 89-92GHz 33 16.42 109.31 16.42 109.30 0.31 0.86 0.30 32
20260702 20:10:00   HIMAWARI9 IR 32 16.94 109.29 16.92 109.24 3.36 9.49 0.20 49
20260702 20:10:00   HIMAWARI9 SWIR 32 18.54 108.50 18.52 108.46 0.51 1.44 0.90 ***
20260702 18:37:37   AMSR2 37GHz 32 17.58 109.83 17.59 109.86 0.41 1.16 1.70 ***
20260702 18:37:37 * AMSR2 89-92GHz 32 17.53 110.09 17.54 110.12 0.30 0.86 1.70 32
20260702 17:30:00   HIMAWARI9 IR 31 19.63 110.45 19.61 110.40 3.36 9.49 0.30 13
20260702 17:30:00   HIMAWARI9 SWIR 31 19.48 109.59 19.46 109.54 0.42 1.19 0.90 ***
20260702 14:20:00   HIMAWARI9 IR 30 18.48 111.09 18.46 111.03 3.36 9.49 0.90 5
20260702 14:20:00   HIMAWARI9 SWIR 30 16.16 110.96 16.14 110.90 0.53 1.51 0.30 ***
20260702 13:20:30   Metop-C ASCAT 30 *** *** *** *** *** *** *** ***
20260702 12:55:00   Metop-A ASCAT 30 17.05 110.87 17.08 110.97 0.22 0.63 *** ***
20260702 11:30:00   HIMAWARI9 IR 31 18.83 112.46 18.82 112.41 3.36 9.49 1.00 1
20260702 11:30:00   HIMAWARI9 SWIR 31 18.86 112.38 18.84 112.33 1.71 4.83 0.90 ***
20260702 10:41:47   SSMIS-17 89-92GHz 30 *** *** *** *** 0.35 0.98 1.40 5
20260702 08:30:00   HIMAWARI9 IR 30 17.70 109.35 17.68 109.30 3.36 9.49 0.50 2
20260702 08:30:00   HIMAWARI9 SWIR 30 17.65 109.35 17.63 109.30 1.32 3.73 0.60 ***
20260702 08:19:58   SSMIS-18 89-92GHz 30 *** *** *** *** 0.54 1.52 1.10 1
20260702 06:25:57   AMSR2 37GHz 30 17.90 111.49 17.91 111.53 0.39 1.10 1.40 ***
20260702 06:25:57   AMSR2 89-92GHz 30 *** *** *** *** 0.44 1.25 2.00 2
20260702 05:30:00   HIMAWARI9 IR 31 18.63 111.06 18.65 110.93 3.36 9.49 0.10 42
20260702 05:30:00   HIMAWARI9 SWIR 31 18.68 111.11 18.70 110.98 1.85 5.24 0.10 ***
20260702 02:30:00   HIMAWARI9 IR 30 19.06 112.05 19.08 111.93 3.36 9.49 0.90 1
20260702 02:30:00   HIMAWARI9 SWIR 30 19.31 111.74 19.33 111.61 0.73 2.07 0.40 ***
20260702 01:44:30   Metop-A ASCAT 30 *** *** *** *** *** *** *** ***
20260701 23:30:00   HIMAWARI9 SWIR 26 19.13 114.62 19.16 114.46 2.37 6.70 0.70 ***
20260701 23:20:00   HIMAWARI9 IR 26 17.53 116.09 17.57 115.88 3.36 9.49 0.20 8
20260701 21:07:20 * SSMIS-18 89-92GHz 25 17.45 114.43 17.45 114.47 0.49 1.38 1.30 1
20260701 20:20:00   HIMAWARI9 IR 25 18.11 116.52 18.15 116.31 3.36 9.49 0.50 8
20260701 20:20:00   HIMAWARI9 SWIR 25 18.69 113.09 18.72 112.88 2.20 6.22 0.90 ***
20260701 17:54:49   AMSR2 37GHz 25 17.55 115.16 17.55 115.16 0.52 1.47 0.90 ***
20260701 17:54:49   AMSR2 89-92GHz 25 *** *** *** *** 0.44 1.23 0.90 3

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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