Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20150723T101126 ssmi15 34.5 19.2% 0.7 -0.7 n/a   30.0 kts
20150723T122031 ssmis16 90.1 23.3% 1.2 -1.2 n/a   30.0 kts
20150723T140200 ssmis17 123.4 42.5% 4.9 -4.9 n/a   31.3 kts
20150723T140637 ssmis19 156.8 34.2% 5.7 -5.7 n/a   31.4 kts
20150723T141633 ssmis19 156.8 34.2% 5.7 -5.7 n/a   31.6 kts
20150723T151828 ssmis18 201.2 13.7% 4.5 -4.5 n/a   32.9 kts
20150723T233344 ssmis16 45.6 0.0% 2.3 -2.3 n/a   30.1 kts
20150724T003547 ssmis17 156.8 15.1% 6.6 -6.6 n/a   30.0 kts
20150724T024301 ssmis18 134.5 5.5% 1.5 -1.5 n/a   30.0 kts
20150724T120657 ssmis16 212.4 8.2% 5.3 -5.3 n/a   30.0 kts
20150724T135212 ssmis17 145.7 6.8% 5.4 -5.4 n/a   30.0 kts
20150724T151534 ssmis18 112.3 9.6% 1.8 -1.8 n/a   30.0 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.

Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -909 is a failure to process (bad input data).