Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20110901T080633 amsre 5.0 0.0% 4.0 -4.0 n/a   30.0 kts
20110901T234940 ssmis16 23.4 0.0% 2.6 -2.6 n/a   30.0 kts
20110902T021231 ssmis18 12.2 0.0% 0.2 -0.2 n/a   30.0 kts
20110902T121854 ssmis16 212.4 NaN% NaN NaN n/a   30.0 kts
20110902T123517 ssmis17 179.0 4.3% 3.1 -3.1 n/a   30.1 kts
20110902T144149 ssmis18 212.4 26.0% 4.1 -4.1 n/a   31.6 kts
20110902T184630 tmi 67.8 1.4% 5.5 -5.5 n/a   35.6 kts
20110902T194737 amsre 212.4 6.8% 3.5 -3.5 n/a   36.5 kts
20110902T225056 ssmis16 212.4 7.5% 3.6 -3.6 n/a   39.0 kts
20110902T235334 ssmis17 167.9 12.3% 4.5 -4.5 n/a   39.9 kts
20110903T020047 ssmis18 23.4 0.0% 1.8 -1.8 n/a   41.7 kts
20110903T075355 amsre 12.2 12.3% 2.6 -2.6 n/a   46.9 kts
20110903T122147 ssmis17 190.1 6.8% 9.7 -9.7 n/a   50.0 kts
20110903T125548 tmi 212.4 8.2% 5.9 -5.9 n/a   50.0 kts
20110903T142932 ssmis18 12.2 0.0% 1.1 -1.1 n/a   50.0 kts
20110903T174939 tmi 134.5 13.7% 1.9 -1.9 n/a   50.0 kts
20110903T185254 amsre 212.4 NaN% NaN NaN n/a   49.8 kts
20110903T234116 ssmis17 101.2 12.3% 3.6 -3.6 n/a   45.3 kts
20110904T014916 ssmis18 145.7 2.7% 0.0 -0.0 n/a   43.2 kts
20110904T120009 tmi 212.4 NaN% NaN NaN n/a   40.0 kts
20110904T120842 ssmis17 201.2 0.0% 1.0 -1.0 n/a   40.0 kts
20110904T133824 tmi 34.5 NaN% NaN NaN n/a   40.0 kts
20110904T141327 ssmis18 101.2 0.0% 0.0 -0.0 n/a   40.0 kts
20110904T165353 tmi 12.2 0.0% 0.0 -0.0 n/a   40.0 kts
20110904T232844 ssmis17 90.1 17.8% 1.2 -1.2 n/a   30.2 kts
20110905T013742 ssmis18 167.9 13.7% 2.4 -2.4 n/a   30.0 kts
20110905T074054 amsre 78.9 19.2% 8.2 -8.2 n/a   32.7 kts
20110905T115538 ssmis17 212.4 NaN% NaN NaN n/a   35.0 kts
20110905T124409 tmi 12.2 0.0% 1.2 -1.2 n/a   34.9 kts
20110905T140411 ssmis18 201.2 NaN% NaN NaN n/a   34.6 kts
20110905T155849 tmi 23.4 17.8% 2.7 -2.7 n/a   33.7 kts
20110905T184116 amsre 167.9 NaN% NaN NaN n/a   32.1 kts
20110905T231622 ssmis17 5.0 0.0% 0.7 -0.7 n/a   30.1 kts
20110906T012558 ssmis18 23.4 0.0% 0.9 -0.9 n/a   30.0 kts
20110906T114221 ssmis17 156.8 0.0% 0.0 -0.0 n/a   30.0 kts
20110906T114731 tmi 212.4 0.0% 0.2 -0.2 n/a   30.0 kts
20110906T130714 ssmis16 23.4 NaN% NaN NaN n/a   29.9 kts
20110906T135153 ssmis18 23.4 0.0% 0.5 -0.5 n/a   29.8 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.