Date/Time	Sat	Diameter (km)	Ring %	Tb diff (K)	Score	Meaning	JTWC estimate

20111225T235411	ssmis17	212.4	12.3%	3.9	-3.9	n/a	40.0 kts

20111226T123435	ssmis16	201.2	27.4%	4.9	-4.9	n/a	40.1 kts
20111226T143150	ssmis18	212.4	43.8%	6.4	-6.4	n/a	41.9 kts
20111226T234110	ssmis17	90.1	31.5%	10.2	-10.2	n/a	45.0 kts

20111227T122208	ssmis16	212.4	NaN%	NaN	NaN	n/a	60.0 kts
20111227T141954	ssmis18	167.9	NaN%	NaN	NaN	n/a	60.0 kts

20111228T005743	ssmis16	56.7	27.4%	19.6	19.6	n/a	60.2 kts
20111228T024357	ssmis18	78.9	57.5%	17.5	17.5	n/a	61.4 kts
20111228T120928	ssmis16	45.6	100.0%	24.8	39.8	>65 kts	75.0 kts
20111228T121925	ssmis17	34.5	100.0%	25.7	40.7	>65 kts	75.0 kts
20111228T140756	ssmis18	23.4	50.7%	5.8	5.8	n/a	75.0 kts

20111229T003742	ssmis16	56.7	100.0%	26.8	41.8	>65 kts	75.2 kts
20111229T024547	ssmis18	56.7	54.8%	14.3	14.3	n/a	77.2 kts

20111230T002458	ssmis17	23.4	100.0%	37.5	52.5	>65 kts	64.7 kts
20111230T003418	ssmis16	23.4	100.0%	32.4	47.4	>65 kts	64.4 kts
20111230T023356	ssmis18	12.2	100.0%	21.2	36.2	>65 kts	55.2 kts
20111230T115350	ssmis17	212.4	NaN%	NaN	NaN	n/a	38.8 kts

Key:

Diameter values indicate the estimated surface eyewall diameter (the MI eyewall edge diameter minus 10 km).

Diameter values are red if Ring % <= 65, yellow/brown if Ring % <= 85 and green if Ring % > 85.

"Ring %" is the percentage of the "ring" (eyewall inner boundary) that is 1) colder than the "hot spot" (warmest eye pixel) in the eye by 20K, or 2) the percentage that is a) colder than 232K and b) colder than the "hot spot" by 10K, whichever is greater.

"Tb diff" is the difference between the "hot spot" (warmest eye pixel) and the warmest pixel on the eyewall.

Scores are listed as negative, and not used, when the JTWC or NHC estimated Vmax is <50 kts in order to rule out weak but highly symmetric TCs.