Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20120912T131704 ssmis17 123.4 45.2% 2.5 -2.5 n/a   31.1 kts
20120913T003539 ssmis16 56.7 13.7% 3.4 -3.4 n/a   40.5 kts
20120913T030619 ssmis18 90.1 27.4% 0.8 -0.8 n/a   43.2 kts
20120913T130259 ssmis16 90.1 2.7% 5.8 -5.8 n/a   45.0 kts
20120913T130354 ssmis17 112.3 5.5% 7.5 -7.5 n/a   45.0 kts
20120913T130922 ssmis16 101.2 4.1% 6.0 -6.0 n/a   45.0 kts
20120913T134931 tmi 90.1 0.0% 10.1 -10.1 n/a   45.0 kts
20120913T220037 tmi 45.6 5.5% 8.9 -8.9 n/a   45.0 kts
20120913T225733 ssmi15 156.8 8.2% 5.5 -5.5 n/a   45.0 kts
20120914T002325 ssmis16 190.1 NaN% NaN NaN n/a   45.1 kts
20120914T032849 ssmis18 156.8 20.6% 3.3 -3.3 n/a   48.1 kts
20120914T112920 ssmi15 212.4 21.9% 5.5 -5.5 n/a   45.1 kts
20120914T125628 ssmis16 45.6 0.0% 4.1 -4.1 n/a   45.0 kts
20120914T160200 ssmis18 134.5 26.0% 2.0 -2.0 n/a   45.0 kts
20120914T210424 tmi 112.3 11.0% 4.5 -4.5 n/a   42.4 kts
20120914T224223 ssmi15 156.8 16.4% 3.7 -3.7 n/a   40.6 kts
20120915T024432 ssmis18 56.7 15.1% 5.3 -5.3 n/a   40.0 kts
20120915T111309 ssmi15 212.4 NaN% NaN NaN n/a   35.2 kts
20120915T133529 tmi 201.2 21.9% 3.7 -3.7 n/a   35.9 kts
20120915T154935 ssmis18 45.6 11.0% 0.5 -0.5 n/a   38.5 kts
20120916T013418 ssmis17 23.4 9.6% 9.3 -9.3 n/a   35.0 kts
20120916T014021 ssmis16 34.5 5.5% 5.0 -5.0 n/a   35.0 kts
20120916T131702 ssmis16 167.9 9.6% 3.3 -3.3 n/a   34.4 kts
20120916T141725 tmi 167.9 11.0% 3.6 -3.6 n/a   33.4 kts
20120916T204943 tmi 179.0 NaN% NaN NaN n/a   30.0 kts
20120917T012148 ssmis17 167.9 4.1% 3.3 -3.3 n/a   30.0 kts
20120917T012757 ssmis16 201.2 4.1% 2.5 -2.5 n/a   30.0 kts
20120917T122156 ssmi15 167.9 0.0% 0.6 -0.6 n/a   28.8 kts
20120917T132144 tmi 12.2 0.0% 0.0 -0.0 n/a   28.1 kts
20120917T135152 ssmis17 34.5 0.0% 0.0 -0.0 n/a   27.8 kts
20120917T195352 tmi 67.8 0.0% 1.3 -1.3 n/a   24.1 kts
20120917T233813 ssmi15 167.9 0.0% 5.3 -5.3 n/a   22.6 kts
20120918T010934 ssmis17 123.4 0.0% 3.9 -3.9 n/a   21.9 kts
20120918T011526 ssmis16 112.3 0.0% 2.9 -2.9 n/a   21.9 kts
20120918T120559 ssmi15 23.4 0.0% 2.8 -2.8 n/a   17.5 kts
20120918T134442 ssmis16 23.4 0.0% 2.8 -2.8 n/a   16.8 kts
20120918T185834 tmi 23.4 0.0% 3.1 -3.1 n/a   15.0 kts
20120918T232238 ssmi15 12.2 0.0% 3.8 -3.8 n/a   15.0 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.

Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -909 is a failure to process (bad input data).