Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130219T084709 ssmis16 145.7 0.0% 3.5 -3.5 n/a   25.0 kts
20130219T114306 ssmis18 78.9 NaN% NaN NaN n/a   25.0 kts
20130219T191043 ssmi15 67.8 0.0% 3.1 -3.1 n/a   25.0 kts
20130219T212710 ssmis16 67.8 0.0% 1.4 -1.4 n/a   25.0 kts
20130219T232112 tmi 23.4 58.9% 3.3 -3.3 n/a   25.0 kts
20130220T003209 ssmis18 NaN 38.4% 0.0 -920.0 n/a   25.0 kts
20130220T095923 ssmis17 134.5 1.4% 2.0 -2.0 n/a   25.0 kts
20130220T111310 ssmis18 56.7 0.0% 2.6 -2.6 n/a   25.0 kts
20130220T123300 tmi 23.4 0.0% 4.3 -4.3 n/a   25.0 kts
20130220T211430 ssmis16 312.4 NaN% NaN NaN n/a   25.0 kts
20130220T222541 tmi 78.9 NaN% NaN NaN n/a   25.0 kts
20130221T001120 ssmis18 145.7 9.6% 2.4 -2.4 n/a   25.0 kts
20130221T074206 ssmi15 201.2 NaN% NaN NaN n/a   25.0 kts
20130221T091404 ssmis17 212.4 0.0% 3.1 -3.1 n/a   25.0 kts
20130221T093503 ssmis16 145.7 1.4% 1.4 -1.4 n/a   24.9 kts
20130221T130905 ssmis18 167.9 NaN% NaN NaN n/a   22.8 kts
20130221T202049 ssmi15 12.2 87.7% 16.1 -31.1 n/a   20.0 kts
20130221T221227 ssmis17 56.7 69.9% 4.5 -4.5 n/a   20.0 kts
20130221T224335 ssmis16 45.6 57.5% 2.8 -2.8 n/a   20.0 kts
20130221T230436 tmi 12.2 89.0% 13.3 -28.3 n/a   20.0 kts
20130222T111437 ssmis17 179.0 NaN% NaN NaN n/a   20.0 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).