Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20130204T044135 tmi 212.4 NaN% NaN NaN n/a   45.0 kts
20130204T143400 tmi 45.6 0.0% 1.9 -1.9 n/a   45.0 kts
20130205T034656 tmi 156.8 NaN% NaN NaN n/a   45.0 kts
20130205T133841 tmi 5.0 0.0% 0.3 -0.3 n/a   45.0 kts
20130206T124350 tmi 112.3 0.0% 2.5 -2.5 n/a   45.0 kts
20130207T114858 tmi 5.0 0.0% 2.1 -2.1 n/a   45.0 kts
20130208T024155 tmi 101.2 16.4% 3.0 -3.0 n/a   45.0 kts
20130208T105408 tmi 134.5 0.0% 2.9 -2.9 n/a   45.0 kts
20130209T014750 tmi 5.0 16.4% 0.9 -0.9 n/a   45.0 kts
20130209T095923 tmi 179.0 17.8% 6.6 -6.6 n/a   45.0 kts
20130210T015832 ssmi15 5.0 24.7% 0.0 -0.0 n/a   45.0 kts
20130210T031147 ssmis16 NaN 6.8% 0.0 -920.0 n/a   45.0 kts
20130210T064600 ssmis18 5.0 0.0% 0.0 -0.0 n/a   45.0 kts
20130210T090437 tmi 134.5 NaN% NaN NaN n/a   45.0 kts
20130210T131227 ssmi15 34.5 0.0% 3.5 -3.5 n/a   44.7 kts
20130210T144917 ssmis16 179.0 0.0% 8.5 -8.5 n/a   43.6 kts
20130210T180152 ssmis18 179.0 0.0% 5.8 -5.8 n/a   40.0 kts
20130211T013650 tmi 90.1 0.0% 2.6 -2.6 n/a   35.0 kts
20130211T014202 ssmi15 90.1 0.0% 3.5 -3.5 n/a   35.0 kts
20130211T030152 ssmis16 212.4 0.0% 10.0 -10.0 n/a   35.0 kts
20130211T063252 ssmis18 212.4 0.0% 9.3 -9.3 n/a   34.1 kts
20130211T125739 ssmi15 212.4 0.0% 7.7 -7.7 n/a   30.0 kts
20130211T141125 ssmis16 212.4 0.0% 3.3 -3.3 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).