2026_15W

-- Link to M-PERC 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

20260811 05:34:59 *	SSMIS-18	89-92GHz	23	***	***	***	***	0.43	1.22	0.30	1
20260811 05:30:00	HIMAWARI9	IR	23	27.77	159.04	27.82	159.01	1.33	3.77	0.50	20
20260811 05:30:00 *	HIMAWARI9	SWIR	23	27.32	159.21	27.37	159.19	0.87	2.46	0.10	***

20260811 02:30:00	HIMAWARI9	IR	25	27.98	160.35	28.03	160.32	3.36	9.49	0.60	6
20260811 02:30:00	HIMAWARI9	SWIR	25	28.05	160.86	28.10	160.83	3.36	9.49	0.10	***
20260811 02:22:21	AMSR2	37GHz	25	28.14	160.82	28.20	160.77	0.35	1.00	3.10	***
20260811 02:22:21 *	AMSR2	89-92GHz	25	28.69	160.76	28.75	160.72	0.28	0.78	1.00	4

20260811 00:54:54	GMI	37GHz	25	***	***	***	***	0.61	1.73	1.10	***
20260811 00:54:54 *	GMI	89-92GHz	25	28.51	160.79	28.42	160.85	0.27	0.78	2.60	5
20260810 23:30:00	HIMAWARI9	IR	25	27.83	160.59	27.91	160.64	3.36	9.49	0.50	0
20260810 23:30:00	HIMAWARI9	SWIR	25	27.93	160.62	28.01	160.67	3.36	9.49	0.80	***

20260810 20:30:00	HIMAWARI9	IR	25	28.55	159.44	28.63	159.49	3.36	9.49	1.00	6
20260810 20:30:00 *	HIMAWARI9	SWIR	25	28.18	159.47	28.25	159.52	2.44	6.90	0.60	***

20260810 18:17:59 *	SSMIS-18	89-92GHz	28	27.88	160.46	27.83	160.43	0.45	1.27	1.40	1
20260810 17:30:00	HIMAWARI9	IR	28	27.51	159.99	27.51	159.96	3.36	9.49	0.60	1
20260810 17:30:00	HIMAWARI9	SWIR	28	27.41	159.88	27.41	159.85	0.47	1.31	0.40	***

20260810 15:23:29	AMSR2	37GHz	29	27.35	160.09	27.35	160.12	0.51	1.43	0.40	***
20260810 15:23:29 *	AMSR2	89-92GHz	29	27.70	160.66	27.70	160.68	0.34	0.96	0.20	3
20260810 14:30:00	HIMAWARI9	IR	30	27.68	158.73	27.68	158.70	3.36	9.49	0.20	1
20260810 14:30:00	HIMAWARI9	SWIR	30	26.48	159.19	26.48	159.15	2.50	7.07	1.00	***

20260810 11:30:00	HIMAWARI9	IR	33	27.66	162.65	27.70	162.64	3.36	9.49	0.10	2
20260810 11:30:00 *	HIMAWARI9	SWIR	33	27.44	162.42	27.47	162.41	0.36	1.01	0.10	***
20260810 11:24:55	GMI	37GHz	33	26.85	160.33	26.89	160.32	0.46	1.31	1.40	***
20260810 11:24:55	GMI	89-92GHz	33	27.55	160.95	27.59	160.94	0.62	1.75	1.60	0

20260810 08:30:00	HIMAWARI9	IR	35	26.84	162.92	26.87	162.92	3.36	9.49	0.20	4
20260810 08:30:00	HIMAWARI9	SWIR	35	27.51	162.98	27.55	162.97	1.12	3.17	0.10	***
20260810 08:10:43 *	SSMIS-16	89-92GHz	27	26.99	159.96	27.04	159.94	0.47	1.32	1.10	2

20260810 05:48:32 *	SSMIS-18	89-92GHz	28	27.07	160.67	27.12	160.69	0.29	0.82	0.30	39
20260810 05:30:00	HIMAWARI9	IR	28	24.98	158.63	25.11	158.68	0.50	1.40	1.00	4
20260810 05:30:00	HIMAWARI9	SWIR	28	25.13	158.49	25.26	158.54	0.78	2.22	0.80	***

20260810 02:30:00	HIMAWARI9	IR	30	27.28	161.38	27.41	161.43	3.36	9.49	0.50	0
20260810 02:30:00 *	HIMAWARI9	SWIR	30	26.83	161.10	26.96	161.15	0.87	2.45	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.

This page automatically updates every 5 minutes