Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120809T160946 tmi 234.6 NaN% NaN NaN n/a   25.0 kts
20120810T002142 tmi 5.0 0.0% 6.6 -6.6 n/a   25.0 kts
20120810T151417 tmi 12.2 0.0% 3.5 -3.5 n/a   25.0 kts
20120810T232634 tmi 5.0 0.0% 3.0 -3.0 n/a   25.0 kts
20120811T141909 tmi 212.4 21.9% 8.0 -8.0 n/a   25.0 kts
20120812T213641 ssmis17 323.5 NaN% NaN NaN n/a   27.5 kts
20120812T214156 ssmis16 323.5 NaN% NaN NaN n/a   27.6 kts
20120813T072057 ssmi15 312.4 NaN% NaN NaN n/a   36.1 kts
20120813T085119 ssmis17 234.6 NaN% NaN NaN n/a   37.4 kts
20120813T085653 ssmis16 234.6 NaN% NaN NaN n/a   37.5 kts
20120813T114206 ssmis18 323.5 NaN% NaN NaN n/a   39.8 kts
20120813T140525 tmi 179.0 NaN% NaN NaN n/a   42.1 kts
20120813T140533 tmi 212.4 NaN% NaN NaN n/a   42.1 kts
20120813T195451 ssmi15 312.4 NaN% NaN NaN n/a   45.0 kts
20120813T211149 ssmis17 312.4 NaN% NaN NaN n/a   45.0 kts
20120813T212515 ssmis16 301.3 NaN% NaN NaN n/a   45.0 kts
20120813T221726 tmi 323.5 NaN% NaN NaN n/a   45.0 kts
20120813T221730 tmi 323.5 NaN% NaN NaN n/a   45.0 kts
20120814T001700 ssmis18 323.5 NaN% NaN NaN n/a   45.0 kts
20120814T070553 ssmi15 112.3 43.8% 2.4 -2.4 n/a   45.3 kts
20120814T110318 ssmis18 56.7 38.4% 7.9 -7.9 n/a   49.1 kts
20120814T130933 tmi 56.7 32.9% 13.7 -13.7 n/a   51.1 kts
20120814T193835 ssmi15 23.4 43.8% 13.4 13.4 n/a   55.0 kts
20120814T210814 ssmis16 45.6 65.8% 15.0 -15.0 n/a   55.0 kts
20120814T211445 ssmis17 45.6 54.8% 13.1 -13.1 n/a   55.0 kts
20120814T212108 tmi 45.6 40.0% 17.1 -17.1 n/a   55.0 kts
20120815T000505 ssmis18 12.2 100.0% 11.1 26.1 >65 kts   55.0 kts
20120815T135055 tmi 45.6 0.0% 2.5 2.5 n/a   56.8 kts
20120816T081603 ssmi15 34.5 100.0% 23.3 38.3 >65 kts   65.0 kts
20120816T095637 ssmis17 23.4 34.2% 13.8 13.8 n/a   65.0 kts
20120816T124813 ssmis18 34.5 45.2% 16.5 16.5 n/a   65.0 kts
20120816T125423 tmi 45.6 NaN% NaN NaN n/a   65.0 kts
20120816T210510 tmi 45.6 13.7% 2.0 2.0 n/a   67.6 kts
20120816T222926 ssmis17 112.3 54.8% 12.0 12.0 n/a   69.2 kts
20120816T223333 ssmis16 112.3 52.0% 12.2 12.2 n/a   69.3 kts
20120817T012122 ssmis18 201.2 61.6% 13.8 13.8 n/a   69.5 kts
20120817T080117 ssmi15 12.2 38.4% 0.0 0.0 n/a   63.4 kts
20120817T094432 ssmis17 212.4 NaN% NaN NaN n/a   62.1 kts
20120817T094837 ssmis16 201.2 0.0% 0.0 0.0 n/a   62.1 kts
20120817T133516 tmi 101.2 52.0% 3.4 3.4 n/a   57.3 kts
20120817T203205 ssmi15 279.1 NaN% NaN NaN n/a   50.0 kts
20120818T010926 ssmis18 23.4 0.0% 0.9 -0.9 n/a   44.8 kts
20120818T111309 ssmis17 56.7 NaN% NaN NaN n/a   27.9 kts
20120818T204851 tmi 45.6 12.3% 7.0 -7.0 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.