Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20120810T025430 tmi 23.4 34.2% 2.6 -2.6 n/a   30.0 kts
20120810T070839 ssmi15 34.5 0.0% 2.4 -2.4 n/a   30.0 kts
20120810T081649 ssmis16 23.4 17.8% 3.6 -3.6 n/a   30.0 kts
20120810T083210 ssmis17 23.4 38.4% 0.0 -0.0 n/a   30.0 kts
20120810T111932 ssmis18 56.7 28.8% 6.8 -6.8 n/a   30.0 kts
20120810T212218 ssmis17 12.2 32.9% 0.0 -0.0 n/a   30.0 kts
20120810T212753 ssmis16 23.4 57.5% 5.3 -5.3 n/a   30.0 kts
20120811T095850 ssmis17 78.9 4.1% 3.4 -3.4 n/a   30.0 kts
20120811T114701 tmi 101.2 0.0% 0.0 -0.0 n/a   30.0 kts
20120811T194308 ssmi15 134.5 4.7% 4.6 -4.6 n/a   30.1 kts
20120811T204807 ssmis17 179.0 19.2% 0.0 -0.0 n/a   30.1 kts
20120811T211530 ssmis16 145.7 12.3% 6.0 -6.0 n/a   30.1 kts
20120811T235953 ssmis18 112.3 17.8% 3.8 -3.8 n/a   30.2 kts
20120812T023739 tmi 12.2 0.0% 6.2 -6.2 n/a   30.2 kts
20120812T081835 ssmi15 78.9 0.0% 5.0 -5.0 n/a   30.4 kts
20120812T094756 ssmis17 12.2 8.2% 0.0 -0.0 n/a   30.4 kts
20120812T095143 ssmis16 12.2 32.9% 0.1 -0.1 n/a   30.4 kts
20120812T123107 ssmis18 34.5 4.1% 3.0 -3.0 n/a   30.5 kts
20120812T220014 ssmis17 67.8 0.0% 4.3 -4.3 n/a   30.8 kts
20120812T224202 ssmis16 12.2 0.0% 2.2 -2.2 n/a   30.8 kts
20120817T213457 ssmi15 12.2 0.0% 3.5 -3.5 n/a   35.0 kts
20120817T224019 ssmis16 34.5 NaN% NaN NaN n/a   35.0 kts
20120818T021221 ssmis18 12.2 0.0% 0.8 -0.8 n/a   35.0 kts
20120818T100141 tmi 179.0 9.6% 1.3 -1.3 n/a   32.0 kts
20120818T100546 ssmi15 201.2 NaN% NaN NaN n/a   31.9 kts
20120818T115206 ssmis17 212.4 NaN% NaN NaN n/a   30.1 kts
20120818T115616 ssmis16 134.5 NaN% NaN NaN n/a   30.1 kts
20120818T143427 ssmis18 34.5 5.5% 2.1 -2.1 n/a   27.3 kts
20120819T015925 ssmis18 201.2 NaN% NaN NaN n/a   23.3 kts
20120819T020049 ssmis18 179.0 NaN% NaN NaN n/a   23.3 kts
20120819T023237 tmi 201.2 0.0% 1.0 -1.0 n/a   22.9 kts
20120819T090511 tmi 23.4 0.0% 1.1 -1.1 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.