Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20110123T091228 ssmis16 NaN 60.3% 0.0 -0.0 n/a   35.0 kts
20110123T110811 ssmis18 NaN 0.0% 3.4 -3.4 n/a   35.0 kts
20110123T211107 ssmis17 179.0 NaN% NaN NaN n/a   35.0 kts
20110123T222454 ssmis16 NaN 0.0% 0.0 -0.0 n/a   35.0 kts
20110124T094700 ssmis17 212.4 NaN% NaN NaN n/a   35.0 kts
20110124T205846 ssmis17 NaN 43.8% 3.6 -3.6 n/a   35.0 kts
20110124T214908 ssmis16 NaN 58.9% 3.0 -3.0 n/a   35.0 kts
20110124T234921 ssmis18 90.1 43.8% 13.6 -13.6 n/a   35.0 kts
20110125T093345 ssmis17 NaN 63.0% 5.4 -5.4 n/a   35.0 kts
20110125T104743 ssmis16 NaN 30.1% 5.6 -5.6 n/a   35.0 kts
20110125T121753 ssmis18 78.9 12.3% 11.1 -11.1 n/a   35.1 kts
20110125T204657 ssmis17 101.2 NaN% NaN NaN n/a   41.4 kts
20110125T214019 ssmis16 123.4 56.2% 16.8 -16.8 n/a   42.4 kts
20110125T233811 ssmis18 101.2 52.0% 11.8 -11.8 n/a   44.6 kts
20110126T092055 tmi NaN 49.3% 1.9 1.9 n/a   58.7 kts
20110126T103437 ssmis16 67.8 100.0% 29.5 44.5 >65 kts   59.6 kts
20110126T121222 ssmis18 45.6 67.1% 16.0 16.0 n/a   60.0 kts
20110126T173641 amsre NaN 63.0% 5.4 5.4 n/a   60.0 kts
20110127T054725 amsre 34.5 45.2% 22.9 22.9 >65 kts   65.0 kts
20110127T082413 tmi 34.5 60.3% 14.5 14.5 n/a   65.0 kts
20110127T104900 ssmis17 156.8 NaN% NaN NaN n/a   65.0 kts
20110127T182030 amsre 56.7 100.0% 37.0 52.0 >65 kts   91.0 kts
20110127T220407 ssmis17 45.6 100.0% 28.1 43.1 >65 kts   101.8 kts
20110127T230544 ssmis16 45.6 100.0% 24.1 39.1 >65 kts   104.6 kts
20110128T005441 tmi 56.7 100.0% 41.5 56.5 >65 kts   108.9 kts
20110128T005705 ssmis18 45.6 100.0% 44.2 59.2 >65 kts   109.0 kts
20110128T062940 amsre 45.6 48.0% 14.3 14.3 n/a   114.8 kts
20110128T072644 tmi 34.5 54.8% 13.7 13.7 n/a   113.6 kts
20110128T103504 ssmis17 45.6 45.2% 19.8 19.8 n/a   103.4 kts
20110128T114908 ssmis16 NaN 52.0% 7.9 7.9 n/a   97.8 kts
20110128T132639 ssmis18 34.5 43.8% 12.2 12.2 n/a   90.3 kts
20110129T063051 tmi NaN 11.0% 1.9 1.9 n/a   64.4 kts
20110129T102104 ssmis17 NaN 27.9% 3.8 3.8 n/a   57.1 kts
20110129T113506 ssmis16 NaN 0.0% 0.0 0.0 n/a   54.3 kts
20110129T131437 ssmis18 212.4 NaN% NaN NaN n/a   50.7 kts
20110129T181035 amsre NaN 0.0% 0.3 -0.3 n/a   45.0 kts
20110129T214054 ssmis17 NaN 0.0% 1.7 -1.7 n/a   44.9 kts
20110129T222856 ssmis16 NaN 0.0% 2.9 -2.9 n/a   44.5 kts
20110130T003514 ssmis18 NaN 0.0% 2.5 -2.5 n/a   42.3 kts
20110130T004155 tmi NaN 0.0% 2.0 -2.0 n/a   42.1 kts
20110130T021959 tmi NaN 0.0% 6.9 -6.9 n/a   39.2 kts
20110130T035752 tmi NaN 0.0% 2.9 -2.9 n/a   35.5 kts
20110130T053542 tmi NaN 0.0% 0.0 -0.0 n/a   31.2 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.