-- 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
20261019 14:50:21 * GOES18 IR 41 -21.54 -151.07 -21.57 -151.00 0.37 1.05 0.40 14
20261019 14:50:21   GOES18 SWIR 41 -21.44 -151.15 -21.47 -151.08 0.39 1.11 0.70 ***
20261019 11:50:21   GOES18 IR 43 -21.48 -152.05 -21.52 -151.97 0.48 1.37 0.40 0
20261019 11:50:21 * GOES18 SWIR 43 -21.33 -152.10 -21.37 -152.03 0.28 0.79 0.60 ***
20261019 08:50:21   GOES18 IR 48 -21.08 -153.74 -21.12 -153.66 0.69 1.96 0.60 2
20261019 08:50:21   GOES18 SWIR 48 -20.96 -153.77 -20.99 -153.69 0.76 2.16 0.20 ***
20261019 05:50:21   GOES18 IR 50 -20.77 -155.24 -20.79 -155.20 0.28 0.79 0.20 2
20261019 05:50:21 * GOES18 SWIR 50 -20.72 -155.27 -20.74 -155.23 0.23 0.65 0.20 ***
20261019 04:35:29   SSMIS-17 89-92GHz 50 *** *** *** *** 0.20 0.57 1.90 29
20261019 02:50:21   GOES18 IR 51 -21.08 -157.06 -21.10 -157.01 3.36 9.49 1.00 0
20261019 02:50:21   GOES18 SWIR 51 -20.73 -156.31 -20.75 -156.27 0.97 2.73 0.10 ***
20261019 00:51:30   GMI 37GHz 52 -20.35 -157.70 -20.20 -157.94 0.21 0.61 2.40 ***
20261019 00:51:30   GMI 89-92GHz 52 -20.70 -158.28 -20.55 -158.53 0.55 1.56 0.20 5
20261018 23:50:21   GOES18 IR 53 -20.48 -158.10 -20.51 -158.05 1.99 5.62 0.10 39
20261018 23:50:21   GOES18 SWIR 53 -20.26 -158.10 -20.29 -158.05 3.36 9.49 0.50 ***
20261018 20:50:21   GOES18 IR 55 -20.17 -158.60 -20.20 -158.55 0.48 1.36 0.10 2
20261018 20:50:21   GOES18 SWIR 55 -20.12 -157.96 -20.15 -157.92 0.59 1.67 0.20 ***
20261018 17:50:21   GOES18 IR 60 -19.57 -159.59 -19.60 -159.56 0.24 0.69 0.30 3
20261018 17:50:21   GOES18 SWIR 60 -19.37 -159.54 -19.40 -159.51 0.83 2.36 0.30 ***
20261018 16:02:58   SSMIS-17 89-92GHz 60 -18.55 -160.07 -18.34 -160.26 0.42 1.20 1.10 8
20261018 14:50:21 * GOES18 IR 61 -18.89 -160.36 -18.92 -160.33 0.11 0.30 0.80 0
20261018 14:50:21   GOES18 SWIR 61 -18.66 -160.15 -18.70 -160.12 0.29 0.82 0.10 ***
20261018 11:50:21   GOES18 IR 62 -18.08 -160.76 -18.11 -160.73 0.14 0.39 0.30 5
20261018 11:50:21   GOES18 SWIR 62 -17.91 -160.56 -17.94 -160.53 0.34 0.97 0.10 ***
20261018 08:50:21 * GOES18 IR 68 -17.42 -161.54 -17.45 -161.51 0.13 0.38 0.10 43
20261018 08:50:21   GOES18 SWIR 68 -17.34 -161.35 -17.37 -161.32 0.26 0.73 0.10 ***
20261018 05:50:21   GOES18 IR 69 -16.93 -162.11 -16.95 -162.10 0.22 0.62 0.20 4
20261018 05:50:21   GOES18 SWIR 69 -16.73 -162.13 -16.75 -162.12 0.30 0.84 0.60 ***
20261018 04:51:15   SSMIS-17 89-92GHz 69 -16.45 -162.09 -16.57 -162.02 0.19 0.53 0.60 59
20261018 02:50:21   GOES18 IR 68 -15.65 -162.19 -15.67 -162.18 0.40 1.13 0.10 49
20261018 02:50:21   GOES18 SWIR 68 -15.55 -162.16 -15.57 -162.15 0.23 0.65 0.40 ***
20261018 01:31:29   GMI 37GHz 67 -15.85 -162.78 -16.01 -162.68 0.20 0.55 0.40 ***
20261018 01:31:29 * GMI 89-92GHz 67 -15.95 -162.63 -16.11 -162.53 0.13 0.35 0.90 93
20261017 23:50:21   GOES18 IR 66 -15.75 -162.67 -15.76 -162.66 0.21 0.60 0.10 10
20261017 23:50:21   GOES18 SWIR 66 -15.45 -162.39 -15.46 -162.37 0.41 1.16 0.80 ***
20261017 20:50:21 * GOES18 IR 65 -15.28 -162.86 -15.30 -162.85 0.19 0.53 0.20 4
20261017 20:50:21   GOES18 SWIR 65 -15.08 -162.60 -15.10 -162.59 0.34 0.97 0.90 ***
20261017 17:50:21   GOES18 IR 69 -14.53 -163.15 -14.55 -163.15 0.19 0.55 0.40 56
20261017 17:50:21   GOES18 SWIR 69 -14.43 -163.23 -14.45 -163.23 0.37 1.04 0.10 ***
20261017 16:16:36   SSMIS-17 89-92GHz 68 -14.75 -163.23 -14.58 -163.23 0.18 0.50 0.70 67
20261017 14:50:21   GOES18 IR 66 -13.31 -163.97 -13.34 -163.97 0.38 1.08 0.10 3
20261017 14:50:21   GOES18 SWIR 66 -13.39 -163.43 -13.41 -163.43 0.27 0.76 0.10 ***
20261017 11:50:21 * GOES18 IR 63 -14.15 -162.92 -14.17 -162.92 0.14 0.38 0.10 2
20261017 11:50:21   GOES18 SWIR 63 -14.15 -163.02 -14.17 -163.02 0.30 0.86 0.30 ***
20261017 08:50:21   GOES18 IR 52 -13.42 -162.98 -13.44 -162.98 0.16 0.45 0.10 0
20261017 08:50:21   GOES18 SWIR 52 -13.37 -163.26 -13.39 -163.26 0.63 1.79 0.10 ***
20261017 05:50:21   GOES18 IR 49 -13.05 -164.08 -13.07 -164.07 0.84 2.37 0.10 6
20261017 05:50:21   GOES18 SWIR 49 -12.95 -163.95 -12.97 -163.94 1.11 3.13 0.10 ***
20261017 05:45:35   SSMIS-16 89-92GHz 49 *** *** *** *** 0.09 0.26 5.00 0
20261017 05:06:35   SSMIS-17 89-92GHz 49 -12.96 -163.39 -13.08 -163.32 0.24 0.68 0.90 47
20261017 02:52:49 * SSMIS-18 89-92GHz 47 -12.58 -163.51 -12.59 -163.50 0.10 0.29 0.70 100
20261017 02:50:21   GOES18 IR 49 -11.91 -163.76 -11.93 -163.74 0.85 2.40 0.10 4
20261017 02:50:21   GOES18 SWIR 49 -12.44 -164.07 -12.46 -164.05 2.15 6.08 0.20 ***
20261017 02:16:30   GMI 37GHz 48 -12.56 -163.31 -12.65 -163.25 0.17 0.49 0.70 ***
20261017 02:16:30   GMI 89-92GHz 48 -12.46 -163.62 -12.55 -163.56 0.27 0.75 0.70 59
20261016 23:50:20   GOES18 IR 44 -12.62 -163.83 -12.62 -163.84 0.49 1.38 0.10 2
20261016 23:50:20   GOES18 SWIR 44 -12.62 -163.68 -12.62 -163.69 0.91 2.57 0.10 ***
20261016 20:50:20   GOES18 IR 40 -12.33 -163.55 -12.33 -163.56 0.58 1.63 0.70 5
20261016 20:50:20   GOES18 SWIR 40 -12.38 -163.66 -12.38 -163.66 0.63 1.79 0.80 ***
20261016 17:50:21   GOES18 IR 44 -11.88 -163.57 -11.91 -163.58 1.23 3.47 0.80 1
20261016 17:50:21   GOES18 SWIR 44 -12.28 -163.75 -12.31 -163.75 2.01 5.68 0.90 ***
20261016 16:30:06   SSMIS-17 89-92GHz 43 -11.99 -163.53 -12.23 -163.54 0.20 0.58 0.60 60
20261016 14:50:21   GOES18 IR 41 -11.97 -164.02 -12.00 -164.02 0.30 0.85 0.10 7
20261016 14:50:21   GOES18 SWIR 41 -11.87 -163.84 -11.90 -163.84 0.65 1.84 0.10 ***
20261016 11:50:21 * GOES18 IR 38 -11.43 -163.80 -11.45 -163.80 0.27 0.76 0.50 9
20261016 11:50:21   GOES18 SWIR 38 -11.38 -163.80 -11.40 -163.80 3.36 9.49 0.20 ***
20261016 08:50:21   GOES18 IR 35 -10.83 -163.41 -10.86 -163.41 3.36 9.49 0.50 0
20261016 08:50:21 * GOES18 SWIR 35 -12.63 -164.12 -12.66 -164.12 0.42 1.18 0.50 ***

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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