Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120313T081201 tmi 67.8 28.8% 2.5 -2.5 n/a   35.0 kts
20120313T110122 ssmis16 90.1 9.6% 1.8 -1.8 n/a   35.0 kts
20120313T162329 tmi 34.5 21.9% 1.9 -1.9 n/a   35.0 kts
20120313T221403 ssmis16 23.4 74.0% 6.1 -6.1 n/a   35.0 kts
20120313T221941 ssmis17 23.4 63.0% 4.2 -4.2 n/a   35.0 kts
20120314T010237 ssmis18 23.4 NaN% NaN NaN n/a   35.6 kts
20120314T071422 tmi 56.7 NaN% NaN NaN n/a   46.2 kts
20120314T104913 ssmis16 12.2 50.7% 2.1 -2.1 n/a   48.9 kts
20120314T214728 ssmis16 45.6 43.8% 2.7 2.7 n/a   62.1 kts
20120314T220625 ssmis17 12.2 0.0% 1.8 1.8 n/a   62.2 kts
20120315T005012 ssmis18 12.2 56.2% 0.0 0.0 n/a   63.2 kts
20120315T095538 ssmis16 145.7 43.8% 0.2 0.2 n/a   66.6 kts
20120315T101831 ssmis17 23.4 41.1% 2.5 2.5 n/a   66.8 kts
20120315T161001 tmi NaN 6.8% 0.6 -920.0 n/a   69.2 kts
20120315T214343 ssmis17 34.5 100.0% 27.3 42.3 >65 kts   71.4 kts
20120315T214822 ssmis16 34.5 100.0% 24.4 39.4 >65 kts   71.4 kts
20120316T003802 ssmis18 23.4 82.2% 9.4 9.4 n/a   72.4 kts
20120316T070206 tmi 12.2 NaN% NaN NaN n/a   75.8 kts
20120316T094502 ssmis16 23.4 100.0% 29.9 44.9 >65 kts   79.1 kts
20120316T100814 ssmis17 23.4 100.0% 31.7 46.7 >65 kts   79.6 kts
20120316T151510 tmi 23.4 100.0% 30.3 45.3 >65 kts   87.3 kts
20120316T213614 ssmis16 34.5 100.0% 37.9 52.9 >65 kts   92.2 kts
20120316T214118 ssmis17 34.5 100.0% 43.0 58.0 >65 kts   92.2 kts
20120317T002638 ssmis18 34.5 100.0% 35.3 50.3 >65 kts   93.6 kts
20120317T060954 tmi 34.5 100.0% 30.2 45.2 >65 kts   94.9 kts
20120317T100924 ssmis16 NaN 0.0% 0.0 -920.0 n/a   67.9 kts
20120317T101448 ssmis17 NaN 41.1% 0.0 -920.0 n/a   67.2 kts
20120317T212503 ssmis16 45.6 0.0% 1.2 -1.2 n/a   45.6 kts
20120317T213001 ssmis17 212.4 0.0% 1.4 -1.4 n/a   45.4 kts
20120318T001611 ssmis18 156.8 NaN% NaN NaN n/a   39.7 kts
20120318T064909 tmi 56.7 0.0% 0.6 -0.6 n/a   32.5 kts
20120318T091601 ssmis16 179.0 0.0% 1.4 -1.4 n/a   30.8 kts
20120318T095956 ssmis17 5.0 0.0% 0.4 -0.4 n/a   30.5 kts
20120318T114346 tmi 23.4 0.0% 0.0 -0.0 n/a   30.0 kts
20120318T124559 ssmis18 101.2 0.0% 1.0 -1.0 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.