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
		20261001 20:50:21 * GOES18 IR 25 17.13 -121.73 17.13 -121.69 0.59 1.67 0.50 7 20261001 20:50:21   GOES18 SWIR 25 14.65 -122.87 14.65 -122.83 0.87 2.47 1.00 ***
		20261001 17:50:20   GOES18 IR 25 16.04 -122.18 16.04 -122.15 3.36 9.49 1.00 2 20261001 17:50:20   GOES18 SWIR 25 15.19 -122.68 15.19 -122.64 3.32 9.39 0.70 ***
		20261001 15:46:29 * GMI 37GHz 25 15.15 -123.13 15.16 -123.29 0.30 0.86 0.70 *** 20261001 15:46:29   GMI 89-92GHz 25 15.00 -122.82 15.01 -122.98 0.33 0.94 0.20 2 20261001 14:53:53   SSMIS-17 89-92GHz 25 *** *** *** *** 0.30 0.86 5.00 0 20261001 14:50:20   GOES18 IR 25 13.62 -122.53 13.62 -122.50 1.03 2.93 1.00 13 20261001 14:50:20   GOES18 SWIR 25 17.07 -122.43 17.07 -122.39 2.33 6.60 0.40 ***
		20261001 11:50:20   GOES18 IR 25 17.10 -123.13 17.10 -123.10 0.45 1.28 0.40 5 20261001 11:50:20 * GOES18 SWIR 25 17.02 -122.98 17.02 -122.95 0.37 1.05 0.10 ***
		20261001 08:50:20   GOES18 IR 25 17.06 -123.70 17.06 -123.67 0.98 2.76 0.50 1 20261001 08:50:20 * GOES18 SWIR 25 17.06 -123.70 17.06 -123.67 0.43 1.21 0.50 ***
		20261001 05:50:20   GOES18 IR 25 17.26 -125.04 17.26 -125.01 2.62 7.40 0.30 2 20261001 05:50:20   GOES18 SWIR 25 17.08 -124.47 17.09 -124.44 3.36 9.49 0.70 ***
		20261001 02:50:20   GOES18 IR 25 16.52 -125.27 16.53 -125.23 2.94 8.31 0.80 2 20261001 02:50:20   GOES18 SWIR 25 16.77 -124.75 16.78 -124.72 0.54 1.52 0.40 ***
		20261001 00:04:13 * SSMIS-18 89-92GHz 25 15.07 -126.46 15.06 -126.48 0.39 1.09 0.50 5 20260930 23:50:20   GOES18 IR 25 16.98 -126.30 16.99 -126.27 1.31 3.71 0.10 5 20260930 23:50:20   GOES18 SWIR 25 16.91 -125.83 16.91 -125.80 0.67 1.90 0.80 ***
		20260930 20:50:20   GOES18 IR 30 14.56 -127.31 14.56 -127.28 0.55 1.54 0.80 49 20260930 20:50:20   GOES18 SWIR 30 14.58 -127.10 14.59 -127.07 1.97 5.55 0.90 ***
		20260930 17:50:20   GOES18 IR 30 14.38 -127.55 14.39 -127.51 3.36 9.49 0.80 3 20260930 17:50:20   GOES18 SWIR 30 14.35 -127.47 14.37 -127.44 0.80 2.27 1.00 ***
		20260930 16:26:30   GMI 37GHz 30 14.61 -127.80 14.47 -128.09 0.47 1.33 0.90 *** 20260930 16:26:30   GMI 89-92GHz 30 14.56 -127.90 14.42 -128.19 0.31 0.86 3.20 3 20260930 15:38:57   SSMIS-16 89-92GHz 30 14.53 -127.68 14.46 -127.81 0.46 1.31 2.20 1 20260930 15:38:57   SSMIS-is 89-92GHz 30 14.53 -127.68 14.46 -127.81 0.46 1.31 2.20 1 20260930 14:50:20   GOES18 IR 25 14.63 -130.28 14.64 -130.24 1.67 4.72 0.30 11 20260930 14:50:20   GOES18 SWIR 25 14.15 -130.02 14.17 -129.99 3.36 9.49 0.20 ***
		20260930 12:54:02   SSMIS-18 89-92GHz 25 *** *** *** *** 0.33 0.93 0.60 2 20260930 11:50:20   GOES18 IR 25 14.44 -130.81 14.45 -130.78 3.36 9.49 0.50 0 20260930 11:50:20   GOES18 SWIR 25 14.14 -128.72 14.15 -128.70 0.85 2.41 0.10 ***
		20260930 08:50:20   GOES18 IR 25 13.13 -129.86 13.14 -129.83 3.36 9.49 0.20 12 20260930 08:50:20 * GOES18 SWIR 25 13.91 -129.47 13.92 -129.45 0.83 2.35 0.80 ***
		20260930 05:50:20   GOES18 IR 25 14.51 -128.75 14.50 -128.73 3.36 9.49 0.50 16 20260930 05:50:20   GOES18 SWIR 25 14.63 -128.62 14.63 -128.60 2.63 7.44 0.80 ***
		20260930 02:50:20   GOES18 IR 30 13.70 -130.60 13.70 -130.58 3.36 9.49 0.90 0 20260930 02:50:20   GOES18 SWIR 30 13.55 -130.55 13.55 -130.53 2.83 7.99 0.60 ***
		20260930 00:18:27   SSMIS-18 89-92GHz 30 *** *** *** *** 0.45 1.26 3.20 1 20260929 23:50:20   GOES18 IR 30 13.80 -129.03 13.79 -129.02 1.60 4.51 1.00 7 20260929 23:50:20 * GOES18 SWIR 30 13.95 -130.58 13.94 -130.57 0.79 2.24 0.70 ***
		20260929 20:50:20   GOES18 IR 33 13.90 -130.94 13.89 -130.92 3.36 9.49 0.50 0 20260929 20:50:20   GOES18 SWIR 33 13.98 -130.91 13.96 -130.90 3.36 9.49 0.80 ***
		20260929 17:50:20   GOES18 IR 31 13.93 -131.30 13.92 -131.28 3.36 9.49 0.60 2 20260929 17:50:20   GOES18 SWIR 31 15.60 -129.49 15.59 -129.47 2.29 6.48 0.10 *** 20260929 17:11:30   GMI 37GHz 31 14.15 -131.45 14.12 -131.33 0.18 0.50 1.30 *** 20260929 17:11:30   GMI 89-92GHz 31 14.50 -131.61 14.47 -131.49 0.38 1.07 1.10 2
		20260929 14:50:20   GOES18 IR 30 13.95 -131.81 13.95 -131.78 3.36 9.49 1.00 0 20260929 14:50:20 * GOES18 SWIR 30 13.95 -131.16 13.95 -131.14 1.24 3.52 0.40 ***

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