2021_21S

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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

20210222 09:53:00	AMSR2	85-92GHz	51.2	***	***	***	***	***	***	1.50	***
20210222 09:53:00 *	AMSR2	37GHz	51.2	-38.47	52.79	-37.97	51.73	0.35	0.99	3.00	***

20210222 01:25:19 *	GMI	85-92GHz	55.0	-34.20	44.78	-34.61	45.65	0.42	1.19	3.00	1.3
20210222 01:25:19	GMI	37GHz	55.0	-34.50	44.96	-34.91	45.84	0.49	1.39	1.20	***

20210222 00:57:33

SSMIS-16

85-92GHz

54.6

***

0.20

***

20210221 21:51:01	AMSR2	85-92GHz	53.2	-33.27	43.63	-32.89	42.84	0.63	1.79	2.20	0.0
20210221 21:51:01 *	AMSR2	37GHz	53.2	-33.37	42.91	-32.99	42.12	0.44	1.25	0.20	***

20210221 12:00:18	GMI	85-92GHz	45.0	-30.85	38.97	-30.74	38.87	0.33	0.94	1.10	8.3
20210221 12:00:18 *	GMI	37GHz	45.0	-30.80	39.03	-30.69	38.92	0.16	0.45	0.80	***
20210221 10:50:28	AMSR2	85-92GHz	46.9	-30.81	38.84	-30.95	38.97	0.33	0.94	3.00	8.0
20210221 10:50:28 *	AMSR2	37GHz	46.9	-30.56	38.78	-30.70	38.91	0.17	0.47	1.00	***

20210221 02:15:18	GMI	85-92GHz	61.2	-28.51	37.15	-28.56	37.17	0.37	1.04	0.20	15.2
20210221 02:15:18 *	GMI	37GHz	61.2	-28.86	37.60	-28.91	37.63	0.18	0.52	0.90	***

20210220 22:44:49	AMSR2	85-92GHz	65.0	-28.23	37.27	-28.37	37.36	0.28	0.79	1.20	7.6
20210220 22:44:49 *	AMSR2	37GHz	65.0	-28.08	37.50	-28.22	37.58	0.16	0.45	0.70	***

20210220 11:46:54	AMSR2	85-92GHz	65.2	-26.08	36.44	-26.06	36.43	0.40	1.13	0.50	0.7
20210220 11:46:54 *	AMSR2	37GHz	65.2	-26.58	36.49	-26.56	36.49	0.21	0.59	0.50	***

20210219 11:04:33 *	AMSR2	85-92GHz	76.3	-24.81	36.53	-24.83	36.51	0.11	0.30	0.10	100.0
20210219 11:04:33	AMSR2	37GHz	76.3	-24.71	36.47	-24.73	36.46	0.13	0.36	1.60	***

20210219 02:20:19	GMI	85-92GHz	65.4	-24.11	37.06	-24.13	37.05	0.11	0.32	0.20	100.0
20210219 02:20:19	GMI	37GHz	65.4	-24.16	36.95	-24.18	36.94	0.20	0.56	2.10	***
20210219 02:02:54 *	SSMIS-18	85-92GHz	65.1	-24.09	37.01	-24.13	36.99	0.10	0.28	0.20	100.0
20210219 01:33:54	SSMIS-16	85-92GHz	64.5	-24.00	37.09	-24.08	37.05	0.13	0.36	0.20	82.8
20210219 01:30:52	SSMI-15	85-92GHz	64.4	-24.10	37.04	-24.18	36.99	0.13	0.38	0.20	85.9

20210218 22:55:44	AMSR2	85-92GHz	61.2	-23.87	37.26	-23.92	37.24	0.14	0.40	0.20	81.9
20210218 22:55:44 *	AMSR2	37GHz	61.2	-23.87	37.32	-23.92	37.29	0.12	0.33	1.00	***

20210218 14:47:04 *	SSMIS-18	85-92GHz	53.7	-23.07	37.00	-23.05	37.01	0.12	0.34	2.40	51.7
20210218 14:18:06	SSMIS-16	85-92GHz	53.5	-23.23	37.29	-23.25	37.28	0.15	0.41	0.20	84.3
20210218 13:00:19 *	GMI	85-92GHz	52.9	-23.32	37.30	-23.45	37.23	0.16	0.44	0.60	96.4
20210218 13:00:19	GMI	37GHz	52.9	-22.97	37.35	-23.10	37.28	0.42	1.20	2.10	***

20210218 02:15:20	SSMIS-18	85-92GHz	48.4	-22.07	37.57	-22.08	37.57	0.43	1.22	0.30	8.0
20210218 01:46:39 *	SSMIS-16	85-92GHz	48.2	-22.19	37.35	-22.23	37.35	0.31	0.87	1.60	9.4

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.

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