Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20110903T080439 ssmis16 323.5 NaN% NaN NaN n/a   31.5 kts
20110903T095128 ssmis18 323.5 NaN% NaN NaN n/a   36.2 kts
20110903T160933 amsre 5.0 100.0% 11.1 -26.1 n/a   44.4 kts
20110903T191058 ssmis17 -919.0 -999.0% -999.0 -909.0 n/a   45.0 kts
20110903T203552 ssmis16 5.0 0.0% 5.1 -5.1 n/a   45.0 kts
20110904T013210 tmi 101.2 11.0% 4.5 -4.5 n/a   45.0 kts
20110904T030646 amsre 78.9 0.0% 4.0 -4.0 n/a   45.0 kts
20110904T075432 ssmis16 101.2 4.1% 3.0 -3.0 n/a   45.0 kts
20110904T101918 ssmis18 134.5 13.7% 2.3 -2.3 n/a   45.0 kts
20110904T202110 ssmis16 123.4 0.0% 6.1 -6.1 n/a   32.3 kts
20110904T203726 ssmis17 123.4 NaN% NaN NaN n/a   32.0 kts
20110904T212011 tmi 134.5 0.0% 6.4 -6.4 n/a   31.4 kts
20110904T224538 ssmis18 123.4 4.1% 3.4 -3.4 n/a   30.3 kts
20110904T225802 tmi 112.3 8.2% 4.2 -4.2 n/a   30.2 kts
20110905T003605 tmi 78.9 11.0% 1.8 -1.8 n/a   30.0 kts
20110905T074322 ssmis16 134.5 0.0% 3.5 -3.5 n/a   31.0 kts
20110905T094026 ssmis18 112.3 0.0% 1.9 -1.9 n/a   33.3 kts
20110905T155347 amsre 90.1 0.0% 3.1 -3.1 n/a   35.0 kts
20110905T202317 ssmis17 112.3 0.0% 2.5 -2.5 n/a   35.0 kts
20110905T220213 tmi 112.3 0.0% 2.8 -2.8 n/a   35.0 kts
20110905T223238 ssmis18 145.7 0.0% 3.9 -3.9 n/a   35.0 kts
20110906T025732 amsre 301.3 NaN% NaN NaN n/a   32.6 kts
20110906T073204 ssmis16 323.5 2.9% 0.4 -0.4 n/a   30.0 kts
20110906T095752 ssmis18 323.5 NaN% NaN NaN n/a   30.0 kts
20110906T163451 amsre 12.2 0.0% 2.1 -2.1 n/a   29.6 kts
20110906T200827 ssmis17 279.1 NaN% NaN NaN n/a   27.0 kts
20110906T213331 ssmis16 23.4 0.0% 1.4 -1.4 n/a   25.9 kts
20110906T221749 ssmis18 12.2 0.0% 3.3 -3.3 n/a   25.5 kts
20110907T072151 ssmis16 56.7 0.0% 2.6 -2.6 n/a   25.0 kts
20110907T073803 ssmis17 234.6 NaN% NaN NaN n/a   25.0 kts
20110907T094305 ssmis18 67.8 0.0% 0.0 -0.0 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.