-- Link to ARCHER Track 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
20260902 02:50:20   GOES19 IR 35 30.17 -94.43 30.18 -94.45 3.36 9.49 0.10 0
20260902 02:50:20 * GOES19 SWIR 35 30.12 -94.46 30.13 -94.48 0.26 0.74 0.10 ***
20260902 01:08:55   SSMIS-16 89-92GHz 38 30.41 -94.11 30.29 -93.96 0.50 1.42 2.30 0
20260901 23:50:20   GOES19 IR 40 29.94 -94.00 29.95 -94.01 1.93 5.46 1.00 1
20260901 23:50:20   GOES19 SWIR 40 30.09 -94.08 30.10 -94.10 3.36 9.49 0.10 ***
20260901 23:12:35   SSMIS-17 89-92GHz 41 *** *** *** *** 0.34 0.97 0.70 9
20260901 22:36:57   SSMIS-18 89-92GHz 42 30.03 -94.23 30.14 -94.36 0.31 0.87 0.20 39
20260901 20:50:20   GOES19 IR 41 29.64 -93.66 29.65 -93.68 0.74 2.10 0.10 1
20260901 20:50:20   GOES19 SWIR 41 29.84 -93.87 29.85 -93.88 0.73 2.06 0.20 ***
20260901 19:09:56   AMSR2 37GHz 42 *** *** *** *** 0.44 1.23 3.20 ***
20260901 19:09:56   AMSR2 89-92GHz 42 29.87 -93.84 29.77 -93.72 0.28 0.79 0.10 41
20260901 17:50:20   GOES19 IR 43 29.50 -93.59 29.51 -93.60 2.38 6.72 0.10 2
20260901 17:50:20   GOES19 SWIR 43 29.45 -93.53 29.46 -93.55 3.36 9.49 1.00 ***
20260901 14:50:20   GOES19 IR 47 29.33 -93.23 29.34 -93.25 3.36 9.49 0.30 1
20260901 14:50:20   GOES19 SWIR 47 29.28 -93.35 29.29 -93.37 0.36 1.01 0.20 ***
20260901 13:49:42   SSMIS-16 89-92GHz 41 29.26 -94.10 29.34 -94.22 0.36 1.03 0.60 7
20260901 11:53:40   SSMIS-17 89-92GHz 41 29.43 -93.03 29.44 -93.04 0.29 0.82 0.20 24
20260901 11:50:20   GOES19 IR 41 29.73 -93.42 29.74 -93.44 3.36 9.49 0.20 1
20260901 11:50:20   GOES19 SWIR 41 29.25 -93.08 29.26 -93.09 0.42 1.19 0.10 ***
20260901 11:19:02   SSMIS-18 89-92GHz 40 29.39 -93.25 29.43 -93.32 0.31 0.86 0.30 29
20260901 08:50:20   GOES19 IR 44 29.08 -92.53 29.09 -92.55 0.37 1.05 0.10 100
20260901 08:50:20   GOES19 SWIR 44 28.98 -92.73 28.99 -92.75 0.45 1.26 0.80 ***
20260901 08:10:30   AMSR2 37GHz 35 28.87 -92.92 28.92 -93.01 0.50 1.41 0.10 ***
20260901 08:10:30 * AMSR2 89-92GHz 35 29.02 -92.75 29.07 -92.83 0.20 0.55 0.80 45
20260901 05:50:20   GOES19 IR 39 28.74 -92.49 28.75 -92.51 0.55 1.56 0.30 47
20260901 05:50:20 * GOES19 SWIR 39 28.56 -92.41 28.58 -92.43 0.25 0.70 0.30 ***
20260901 02:50:20   GOES19 IR 36 28.27 -92.32 28.28 -92.34 3.36 9.49 0.40 3
20260901 02:50:20   GOES19 SWIR 36 28.15 -92.32 28.16 -92.34 1.23 3.46 0.20 ***
20260901 01:22:23   SSMIS-16 89-92GHz 34 28.26 -91.79 28.15 -91.61 0.31 0.88 1.50 6
20260831 23:50:22   GOES19 IR 33 27.78 -92.16 27.79 -92.18 1.09 3.09 0.80 43
20260831 23:50:22   GOES19 SWIR 33 27.81 -92.02 27.81 -92.03 1.05 2.97 0.50 ***
20260831 21:45:45   GMI 37GHz 30 *** *** *** *** 0.46 1.29 0.50 ***
20260831 21:45:45   GMI 89-92GHz 30 28.24 -91.60 28.20 -91.52 0.22 0.62 2.70 9
20260831 20:50:21   GOES19 IR 33 28.22 -91.69 28.23 -91.71 3.36 9.49 0.10 6
20260831 20:50:21   GOES19 SWIR 33 28.25 -91.35 28.26 -91.37 0.35 0.98 0.20 ***
20260831 17:50:21   GOES19 IR 31 28.31 -90.83 28.33 -90.83 3.36 9.49 0.30 1
20260831 17:50:21 * GOES19 SWIR 31 28.21 -90.89 28.23 -90.89 0.34 0.97 0.10 ***
20260831 14:50:21 * GOES19 IR 30 29.76 -91.33 29.78 -91.33 0.47 1.34 0.10 42
20260831 14:50:21   GOES19 SWIR 30 29.76 -91.33 29.78 -91.33 0.56 1.57 0.20 ***

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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