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
		20260511 10:25:13 * SSMIS-16 89-92GHz 20 12.48 129.89 12.40 130.04 0.43 1.21 0.30 1 20260511 08:30:00   HIMAWARI9 IR 20 11.58 126.98 11.61 126.92 0.64 1.81 0.30 12 20260511 08:30:00   HIMAWARI9 SWIR 20 11.33 128.66 11.36 128.61 3.36 9.49 0.60 ***
		20260511 07:10:26 * SSMIS-18 89-92GHz 20 11.87 129.46 11.81 129.59 0.46 1.31 0.20 1 20260511 05:30:00   HIMAWARI9 IR 20 11.43 126.97 11.46 126.91 1.18 3.34 0.50 5 20260511 05:30:00   HIMAWARI9 SWIR 20 11.43 126.97 11.46 126.91 0.65 1.82 0.50 ***
		20260511 02:30:00   HIMAWARI9 IR 20 11.63 127.38 11.66 127.33 3.36 9.49 0.20 10 20260511 02:30:00 * HIMAWARI9 SWIR 20 11.63 127.38 11.66 127.33 0.76 2.16 0.20 ***
		20260510 23:30:00   HIMAWARI9 IR 20 11.47 127.72 11.50 127.66 0.83 2.35 0.40 28 20260510 23:30:00 * HIMAWARI9 SWIR 20 11.55 127.75 11.58 127.69 0.51 1.43 0.30 ***
		20260510 20:30:00   HIMAWARI9 IR 21 11.55 128.20 11.57 128.14 3.36 9.49 0.70 5 20260510 20:30:00   HIMAWARI9 SWIR 21 11.82 128.35 11.85 128.29 3.36 9.49 1.00 *** 20260510 20:01:48 * SSMIS-18 89-92GHz 22 11.02 129.99 11.07 129.87 0.48 1.35 2.20 2
		20260510 17:30:00   HIMAWARI9 IR 23 11.20 128.50 11.22 128.44 1.71 4.83 0.90 42 20260510 17:30:00   HIMAWARI9 SWIR 23 12.02 129.09 12.05 129.03 0.71 2.00 0.20 *** 20260510 16:42:34   AMSR2 37GHz 24 *** *** *** *** 0.62 1.75 1.00 *** 20260510 16:42:34   AMSR2 89-92GHz 24 10.48 130.50 10.55 130.35 0.61 1.73 1.50 0 20260510 16:42:00 * GMI 37GHz 24 10.63 130.51 10.70 130.35 0.31 0.88 1.00 *** 20260510 16:42:00   GMI 89-92GHz 24 10.48 130.61 10.55 130.45 0.41 1.15 2.80 3
		20260510 14:30:00   HIMAWARI9 IR 25 10.18 128.74 10.20 128.69 3.36 9.49 0.90 5 20260510 14:30:00 * HIMAWARI9 SWIR 25 11.96 129.51 11.97 129.46 1.03 2.91 1.00 ***
		20260510 13:16:00   Metop-C ASCAT 25 *** *** *** *** *** *** *** *** 20260510 11:30:00   HIMAWARI9 IR 25 9.13 129.43 9.15 129.36 2.58 7.31 0.20 2 20260510 11:30:00 * HIMAWARI9 SWIR 25 11.06 129.21 11.07 129.13 2.58 7.30 1.00 ***
		20260510 08:30:00   HIMAWARI9 IR 25 8.98 130.02 9.00 129.95 3.36 9.49 0.80 1 20260510 08:30:00 * HIMAWARI9 SWIR 25 10.55 129.67 10.57 129.59 1.25 3.54 1.00 ***
		20260510 07:24:13 * SSMIS-18 89-92GHz 25 10.08 131.75 10.04 131.96 0.28 0.78 1.70 2 20260510 05:30:00   HIMAWARI9 IR 25 11.20 131.22 11.19 131.10 3.36 9.49 0.20 3 20260510 05:30:00   HIMAWARI9 SWIR 25 11.08 131.32 11.06 131.20 1.85 5.23 0.60 *** 20260510 05:07:00   GMI 37GHz 30 10.00 132.02 9.97 131.81 0.48 1.35 2.90 *** 20260510 05:07:00   GMI 89-92GHz 30 10.20 132.12 10.17 131.92 0.34 0.95 0.40 2
		20260510 04:26:43   AMSR2 37GHz 26 10.03 132.14 10.08 132.48 0.40 1.14 4.80 *** 20260510 04:26:43 * AMSR2 89-92GHz 26 10.13 132.24 10.18 132.58 0.30 0.85 3.50 4 20260510 02:30:00   HIMAWARI9 IR 30 11.81 131.54 11.79 131.43 3.36 9.49 0.30 4 20260510 02:30:00   HIMAWARI9 SWIR 30 12.08 131.90 12.07 131.78 1.87 5.28 0.30 ***
		20260509 23:30:00   HIMAWARI9 IR 30 11.98 133.11 12.02 133.05 3.36 9.49 0.80 8 20260509 23:30:00 * HIMAWARI9 SWIR 30 11.53 132.12 11.57 132.06 1.31 3.69 0.30 ***
		20260509 21:59:48 * SSMIS-16 89-92GHz 30 10.64 133.84 10.56 133.96 0.41 1.16 0.70 6 20260509 21:02:04   SSMIS-17 89-92GHz 30 10.95 134.31 10.95 134.31 0.59 1.68 2.80 0 20260509 20:30:00   HIMAWARI9 IR 30 11.11 132.16 11.15 132.10 2.26 6.38 0.90 9 20260509 20:30:00   HIMAWARI9 SWIR 30 11.11 132.16 11.15 132.10 0.42 1.19 0.90 ***
		20260509 17:30:00   HIMAWARI9 IR 30 10.01 131.74 10.05 131.70 3.36 9.49 0.10 3 20260509 17:30:00 * HIMAWARI9 SWIR 30 10.38 131.89 10.42 131.85 0.50 1.41 0.50 ***
		20260509 14:30:00   HIMAWARI9 IR 30 9.28 132.06 9.32 132.03 3.36 9.49 0.10 30 20260509 14:30:00 * HIMAWARI9 SWIR 30 10.38 132.31 10.42 132.28 1.07 3.03 0.60 ***
		20260509 11:30:00   HIMAWARI9 IR 30 10.30 132.75 10.29 132.63 3.36 9.49 0.30 2 20260509 11:30:00   HIMAWARI9 SWIR 30 10.43 132.82 10.42 132.71 1.00 2.82 0.80 *** 20260509 11:25:00 * Metop-A ASCAT 30 9.30 134.51 9.29 134.38 0.33 0.93 *** ***
		20260509 08:30:00   HIMAWARI9 IR 35 11.12 134.20 11.11 134.08 0.96 2.71 0.20 11 20260509 08:30:00 * HIMAWARI9 SWIR 35 10.89 133.97 10.89 133.85 0.30 0.86 0.30 *** 20260509 07:38:02   SSMIS-18 89-92GHz 35 *** *** *** *** 0.46 1.30 5.00 0
		20260509 05:30:00   HIMAWARI9 IR 35 9.37 133.41 9.43 133.39 3.36 9.49 1.00 2 20260509 05:30:00 * HIMAWARI9 SWIR 35 10.15 133.71 10.21 133.69 1.76 4.98 0.50 ***
		20260509 02:30:00   HIMAWARI9 IR 35 10.14 134.27 10.20 134.25 1.24 3.51 0.10 40 20260509 02:30:00 * HIMAWARI9 SWIR 35 10.19 134.27 10.25 134.25 0.82 2.31 0.60 ***
		20260509 00:50:30 * Metop-C ASCAT 35 8.68 135.94 8.58 135.99 0.21 0.58 *** *** 20260508 23:30:00   HIMAWARI9 IR 35 10.72 136.29 10.72 136.21 1.85 5.24 0.80 33 20260508 23:30:00   HIMAWARI9 SWIR 35 7.85 136.59 7.85 136.52 2.76 7.81 0.80 ***
		20260508 22:13:36 * SSMIS-16 89-92GHz 35 8.71 136.13 8.71 136.32 0.36 1.03 2.80 7 20260508 20:30:00   HIMAWARI9 IR 35 8.97 136.77 8.97 136.69 3.36 9.49 1.00 0 20260508 20:30:00   HIMAWARI9 SWIR 35 8.69 138.01 8.69 137.93 1.09 3.08 0.10 ***
		20260508 18:49:36   SSMIS-18 89-92GHz 35 9.06 137.14 9.06 137.26 0.48 1.35 2.30 2 20260508 17:30:00   HIMAWARI9 IR 35 10.73 136.86 10.73 136.76 0.73 2.07 0.10 50 20260508 17:30:00   HIMAWARI9 SWIR 35 10.58 136.38 10.58 136.28 0.38 1.09 0.10 *** 20260508 16:55:05   AMSR2 37GHz 35 *** *** *** *** 0.50 1.42 0.90 *** 20260508 16:55:05   AMSR2 89-92GHz 35 8.80 136.84 8.80 136.62 0.38 1.07 0.70 13 20260508 16:31:59   GMI 37GHz 35 *** *** *** *** 0.59 1.67 0.40 *** 20260508 16:31:59 * GMI 89-92GHz 35 7.71 138.86 7.71 138.57 0.25 0.70 1.60 46
		20260508 14:30:00   HIMAWARI9 IR 35 9.18 136.17 9.18 136.07 3.36 9.49 0.20 7 20260508 14:30:00 * HIMAWARI9 SWIR 35 9.90 136.20 9.90 136.10 0.75 2.11 0.20 ***
		20260508 11:30:00 * HIMAWARI9 IR 40 9.15 136.34 9.15 136.28 0.78 2.20 0.20 57 20260508 11:30:00   HIMAWARI9 SWIR 40 8.82 136.90 8.82 136.84 3.36 9.49 0.10 ***
		20260508 08:37:44 * SSMIS-17 89-92GHz 40 9.48 138.30 9.48 138.25 0.38 1.08 0.90 1 20260508 08:30:00   HIMAWARI9 IR 40 9.47 136.72 9.47 136.66 3.36 9.49 1.00 6 20260508 08:30:00   HIMAWARI9 SWIR 40 9.12 137.02 9.12 136.96 3.36 9.49 0.20 ***
		20260508 05:30:00   HIMAWARI9 IR 41 9.60 137.30 9.62 137.22 1.11 3.14 0.40 40 20260508 05:30:00   HIMAWARI9 SWIR 41 9.27 137.18 9.30 137.09 0.39 1.11 0.50 *** 20260508 04:57:00   GMI 37GHz 40 *** *** *** *** 0.50 1.40 0.70 *** 20260508 04:57:00   GMI 89-92GHz 40 *** *** *** *** 0.49 1.39 5.00 0 20260508 04:38:19 * AMSR2 37GHz 40 *** *** *** *** 0.38 1.08 1.80 *** 20260508 04:38:19   AMSR2 89-92GHz 40 8.53 139.21 8.59 138.98 0.55 1.55 2.00 1
		20260508 02:30:00 * HIMAWARI9 IR 40 10.42 139.06 10.44 138.98 0.58 1.63 0.30 45 20260508 02:30:00   HIMAWARI9 SWIR 40 10.29 138.91 10.32 138.83 3.36 9.49 1.00 ***
		20260507 23:30:00 * HIMAWARI9 IR 36 9.72 139.19 9.75 139.08 0.27 0.77 0.70 65 20260507 23:30:00   HIMAWARI9 SWIR 36 9.50 139.29 9.52 139.18 1.38 3.90 1.00 ***
		20260507 20:30:00   HIMAWARI9 IR 35 9.26 139.33 9.28 139.22 3.36 9.49 0.20 2 20260507 20:30:00 * HIMAWARI9 SWIR 35 8.03 139.96 8.06 139.85 2.44 6.88 0.30 ***
		20260507 19:03:23 * SSMIS-18 89-92GHz 37 *** *** *** *** 0.54 1.53 0.10 2 20260507 17:30:00   HIMAWARI9 IR 36 9.33 140.03 9.36 139.95 0.68 1.93 0.50 18 20260507 17:30:00   HIMAWARI9 SWIR 36 8.30 141.42 8.33 141.34 1.25 3.54 0.10 ***
		20260507 16:12:01 * AMSR2 37GHz 35 8.00 141.18 7.92 141.38 0.29 0.82 1.70 *** 20260507 16:12:01   AMSR2 89-92GHz 35 *** *** *** *** 0.58 1.64 1.50 1 20260507 14:30:00   HIMAWARI9 IR 35 8.36 142.27 8.39 142.19 3.36 9.49 0.20 0 20260507 14:30:00   HIMAWARI9 SWIR 35 8.18 142.37 8.22 142.29 0.43 1.22 0.10 ***
		20260507 11:30:00   HIMAWARI9 IR 36 9.30 140.81 9.32 140.75 1.44 4.06 0.10 9 20260507 11:30:00 * HIMAWARI9 SWIR 36 8.35 143.00 8.37 142.95 0.71 2.01 0.20 ***
		20260507 09:48:29   SSMIS-16 89-92GHz 35 8.09 142.19 8.07 142.28 0.61 1.72 2.10 0 20260507 08:51:56   SSMIS-17 89-92GHz 35 8.19 142.77 8.20 142.75 0.42 1.19 0.70 4 20260507 08:30:00   HIMAWARI9 IR 35 7.67 142.77 7.69 142.71 3.36 9.49 0.10 2 20260507 08:30:00 * HIMAWARI9 SWIR 35 8.05 143.40 8.06 143.34 0.32 0.90 0.10 ***
		20260507 06:24:51   SSMIS-18 89-92GHz 35 *** *** *** *** 0.59 1.67 2.20 0 20260507 05:36:59 * GMI 37GHz 35 *** *** *** *** 0.51 1.44 0.70 *** 20260507 05:36:59   GMI 89-92GHz 35 *** *** *** *** 0.58 1.64 0.60 0 20260507 05:30:00   HIMAWARI9 IR 35 9.33 142.64 9.36 142.57 0.88 2.50 1.00 42 20260507 05:30:00   HIMAWARI9 SWIR 35 8.01 143.60 8.03 143.52 0.55 1.54 0.10 ***
		20260507 03:54:40   AMSR2 37GHz 35 7.78 142.54 7.74 142.68 0.32 0.92 0.50 *** 20260507 03:54:40 * AMSR2 89-92GHz 35 7.83 142.84 7.79 142.98 0.31 0.87 1.70 16 20260507 02:30:00   HIMAWARI9 IR 35 7.78 142.91 7.81 142.84 3.36 9.49 0.50 48 20260507 02:30:00   HIMAWARI9 SWIR 35 7.68 143.11 7.71 143.04 3.36 9.49 1.00 ***
		20260506 23:30:00   HIMAWARI9 IR 35 8.78 142.96 8.77 142.89 0.98 2.78 1.00 39 20260506 23:30:00 * HIMAWARI9 SWIR 35 8.26 143.29 8.25 143.21 0.98 2.77 1.00 ***
		20260506 21:00:34 * SSMIS-16 89-92GHz 35 6.85 143.69 6.85 143.70 0.37 1.05 0.70 5 20260506 20:30:00   HIMAWARI9 IR 35 7.91 142.85 7.90 142.78 3.36 9.49 1.00 5 20260506 20:30:00   HIMAWARI9 SWIR 35 6.71 143.11 6.70 143.03 3.16 8.95 1.00 *** 20260506 20:04:21   SSMIS-17 89-92GHz 35 *** *** *** *** 0.58 1.65 1.90 1
		20260506 17:30:00   HIMAWARI9 IR 35 9.16 144.30 9.18 144.21 3.36 9.49 0.40 1 20260506 17:30:00 * HIMAWARI9 SWIR 35 5.53 143.77 5.55 143.68 0.43 1.20 1.00 ***
		20260506 15:29:14 * AMSR2 37GHz 35 6.91 144.87 6.89 144.95 0.23 0.64 1.80 *** 20260506 15:29:14   AMSR2 89-92GHz 35 *** *** *** *** 0.56 1.59 3.00 2 20260506 14:30:00   HIMAWARI9 IR 35 5.74 143.90 5.75 143.81 1.02 2.88 1.00 16 20260506 14:30:00   HIMAWARI9 SWIR 35 5.69 143.97 5.70 143.89 0.50 1.41 0.40 ***
		20260506 06:38:56 * SSMIS-18 89-92GHz 35 7.56 145.37 7.57 145.42 0.41 1.16 4.10 4 20260506 05:30:00   HIMAWARI9 IR 32 6.35 144.39 6.35 144.35 3.36 9.49 0.40 8 20260506 05:30:00   HIMAWARI9 SWIR 32 6.18 144.44 6.17 144.40 0.63 1.77 0.70 ***
		20260506 03:11:42   AMSR2 37GHz 31 *** *** *** *** 0.45 1.26 5.00 *** 20260506 03:11:42   AMSR2 89-92GHz 31 *** *** *** *** 0.57 1.60 5.00 0 20260506 02:30:00   HIMAWARI9 IR 34 8.87 145.96 8.86 145.92 3.36 9.49 0.60 22 20260506 02:30:00 * HIMAWARI9 SWIR 34 8.84 146.21 8.84 146.17 0.42 1.20 0.60 ***
		20260506 00:14:30 * Metop-C ASCAT 30 7.05 146.36 7.05 146.38 0.24 0.67 *** *** 20260505 23:43:00   Metop-A ASCAT 31 8.38 147.37 8.32 147.29 3.36 9.49 *** *** 20260505 23:41:30   Metop-A ASCAT 31 8.38 147.37 8.32 147.29 3.36 9.49 *** *** 20260505 23:30:00   HIMAWARI9 IR 30 8.26 145.92 8.16 145.79 1.72 4.86 1.00 9 20260505 23:30:00   HIMAWARI9 SWIR 30 7.76 145.80 7.66 145.66 3.36 9.49 0.10 ***
		20260505 21:13:52 * SSMIS-16 89-92GHz 30 8.75 146.80 8.80 146.86 0.40 1.14 2.10 5 20260505 20:30:00   HIMAWARI9 IR 30 8.53 145.89 8.42 145.75 2.50 7.06 0.60 6 20260505 20:30:00   HIMAWARI9 SWIR 30 7.65 146.01 7.55 145.88 0.73 2.06 0.40 *** 20260505 20:18:07   SSMIS-17 89-92GHz 30 8.90 146.90 8.76 146.72 0.49 1.39 2.10 2
		20260505 17:50:56   SSMIS-18 89-92GHz 30 *** *** *** *** 0.39 1.11 5.00 0 20260505 17:01:59   GMI 37GHz 30 7.20 147.44 7.20 147.44 0.41 1.17 2.20 *** 20260505 17:01:59 * GMI 89-92GHz 30 9.15 149.31 9.15 149.31 0.28 0.79 1.20 8

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: Summary table, ARCHER Track table, ARCHER Track Image Archive, Intensity Estimation, ARCHER-ERC page, F-Decks