Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120728T222508 ssmis18 23.4 4.1% 3.6 -3.6 n/a   30.0 kts
20120729T032608 tmi 34.5 0.0% 6.6 -6.6 n/a   30.0 kts
20120729T061444 ssmi15 56.7 0.0% 6.9 -6.9 n/a   30.0 kts
20120729T094301 ssmis18 145.7 17.8% 3.9 -3.9 n/a   32.6 kts
20120729T184249 ssmi15 190.1 0.0% 5.3 -5.3 n/a   40.0 kts
20120729T213508 tmi 201.2 23.3% 5.1 -5.1 n/a   40.0 kts
20120730T055858 ssmi15 156.8 9.6% 3.3 -3.3 n/a   45.0 kts
20120730T182708 ssmi15 12.2 0.0% 8.6 -8.6 n/a   35.0 kts
20120730T203913 tmi 45.6 0.0% 5.6 -5.6 n/a   35.0 kts
20120730T205519 ssmis17 45.6 0.0% 1.7 -1.7 n/a   35.0 kts
20120730T210437 ssmis16 56.7 0.0% 1.2 -1.2 n/a   35.0 kts
20120730T232924 ssmis18 90.1 NaN% NaN NaN n/a   35.0 kts
20120731T030928 tmi 90.1 5.5% 4.1 -4.1 n/a   40.4 kts
20120731T073841 ssmis17 45.6 4.1% 9.0 -9.0 n/a   45.0 kts
20120731T082125 ssmis16 34.5 24.7% 7.4 -7.4 n/a   45.0 kts
20120731T110056 ssmis18 45.6 8.2% 13.0 -13.0 n/a   45.0 kts
20120731T204116 ssmis17 101.2 13.7% 1.6 1.6 n/a   57.5 kts
20120731T205136 ssmis16 101.2 38.4% 1.2 1.2 n/a   57.6 kts
20120731T211940 tmi 101.2 9.6% 4.3 4.3 n/a   58.0 kts
20120731T231419 ssmis18 67.8 19.2% 2.9 2.9 n/a   59.4 kts
20120801T021244 tmi 34.5 24.7% 0.0 0.0 n/a   62.3 kts
20120801T073859 ssmis17 34.5 35.6% 11.9 11.9 n/a   65.0 kts
20120801T081147 ssmis16 112.3 NaN% NaN NaN n/a   65.0 kts
20120801T104826 ssmis18 23.4 87.7% 15.8 30.9 >65 kts   65.0 kts
20120801T215952 tmi 23.4 100.0% 23.5 38.5 >65 kts   66.3 kts
20120801T220936 ssmis16 23.4 100.0% 40.1 55.1 >65 kts   66.1 kts
20120801T221622 ssmis17 23.4 100.0% 38.8 53.8 >65 kts   66.0 kts
20120801T233845 tmi 34.5 100.0% 43.2 58.2 >65 kts   65.1 kts
20120802T094116 ssmis16 23.4 0.0% 6.5 6.5 n/a   69.8 kts
20120802T220256 ssmis17 301.3 NaN% NaN NaN n/a   54.4 kts
20120802T223902 tmi 123.4 16.4% 0.8 -0.8 n/a   53.6 kts
20120803T001646 tmi 234.6 NaN% NaN NaN n/a   50.2 kts
20120803T092548 ssmis17 312.4 NaN% NaN NaN n/a   29.7 kts
20120803T092900 ssmis16 323.5 NaN% NaN NaN n/a   29.6 kts
20120803T120816 ssmis18 134.5 0.0% 1.4 -1.4 n/a   25.9 kts
20120803T204442 ssmi15 12.2 0.0% 0.9 -0.9 n/a   20.0 kts
20120803T215250 ssmis16 12.2 0.0% 0.2 -0.2 n/a   20.0 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.