Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20120804T080718 ssmis17 12.2 76.7% 2.4 -2.4 n/a   32.3 kts
20120804T132836 tmi 145.7 15.1% 6.4 -6.4 n/a   41.5 kts
20120804T191846 ssmis17 123.4 19.2% 6.5 -6.5 n/a   46.3 kts
20120804T192203 ssmis16 145.7 19.2% 12.2 -12.2 n/a   46.3 kts
20120804T212929 ssmis18 56.7 2.7% 2.2 -2.2 n/a   48.6 kts
20120805T042005 tmi 12.2 39.7% 3.0 -3.0 n/a   49.7 kts
20120805T075412 ssmis17 78.9 30.1% 1.2 -1.2 n/a   49.0 kts
20120805T075734 ssmis16 78.9 27.4% 0.8 -0.8 n/a   49.0 kts
20120805T103033 ssmis18 23.4 0.0% 3.6 -3.6 n/a   48.3 kts
20120805T175552 ssmi15 212.4 NaN% NaN NaN n/a   45.0 kts
20120806T062920 ssmi15 145.7 0.0% 9.8 -9.8 n/a   30.0 kts
20120806T102555 ssmis18 12.2 0.0% 1.0 -1.0 n/a   30.0 kts
20120806T131320 tmi 190.1 0.0% 6.3 -6.3 n/a   30.0 kts
20120806T201121 ssmis17 23.4 0.0% 2.1 -2.1 n/a   30.0 kts
20120806T203816 ssmis16 12.2 0.0% 0.0 -0.0 n/a   30.0 kts
20120806T230811 ssmis18 212.4 NaN% NaN NaN n/a   30.0 kts
20120806T232115 ssmis18 56.7 0.0% 2.0 -2.0 n/a   30.0 kts
20120807T040356 tmi 12.2 0.0% 5.8 -5.8 n/a   28.7 kts
20120807T090938 ssmis17 212.4 12.3% 1.6 -1.6 n/a   25.7 kts
20120807T091309 ssmis16 167.9 12.3% 1.4 -1.4 n/a   25.7 kts
20120807T115456 ssmis18 134.5 19.2% 0.0 -0.0 n/a   25.0 kts
20120807T190604 ssmi15 23.4 0.0% 4.7 -4.7 n/a   25.0 kts
20120807T195553 ssmis17 145.7 NaN% NaN NaN n/a   25.0 kts
20120807T195604 ssmis16 156.8 NaN% NaN NaN n/a   25.0 kts
20120807T224604 ssmis18 45.6 0.0% 1.5 -1.5 n/a   25.0 kts
20120808T044425 tmi 179.0 5.9% 5.5 -5.5 n/a   25.0 kts
20120808T073849 ssmi15 23.4 16.4% 0.5 -0.5 n/a   25.0 kts
20120808T084259 ssmis17 56.7 NaN% NaN NaN n/a   25.0 kts
20120808T090017 ssmis16 56.7 NaN% NaN NaN n/a   25.0 kts
20120808T114238 ssmis18 67.8 13.7% 3.4 -3.4 n/a   25.0 kts
20120808T125532 tmi 101.2 8.2% 4.4 -4.4 n/a   25.0 kts
20120809T102309 ssmis16 201.2 17.8% 4.3 -4.3 n/a   25.0 kts
20120809T102429 ssmis17 190.1 21.9% 4.1 -4.1 n/a   25.0 kts
20120809T115828 tmi 23.4 34.2% 5.1 -5.1 n/a   25.0 kts
20120809T213810 ssmis17 78.9 0.0% 1.8 -1.8 n/a   25.0 kts
20120809T213938 ssmis17 78.9 0.0% 1.8 -1.8 n/a   25.0 kts
20120809T214312 ssmis16 67.8 4.5% 2.4 -2.4 n/a   25.0 kts
20120810T002643 ssmis18 212.4 NaN% NaN NaN n/a   25.0 kts
20120810T042905 tmi 12.2 12.3% 4.2 -4.2 n/a   25.0 kts
20120810T084728 ssmi15 123.4 6.8% 6.3 -6.3 n/a   25.0 kts
20120810T101103 ssmis17 123.4 NaN% NaN NaN n/a   25.0 kts
20120810T101312 ssmis16 167.9 NaN% NaN NaN n/a   25.0 kts
20120810T125759 ssmis18 56.7 0.0% 3.5 -3.5 n/a   25.0 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.