Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120728T082206 ssmis17 34.5 26.0% 0.0 -0.0 n/a   37.7 kts
20120728T085632 ssmis16 34.5 32.9% 0.0 -0.0 n/a   38.3 kts
20120728T105741 ssmis18 78.9 19.2% 0.0 -0.0 n/a   39.8 kts
20120728T120840 ssmis18 279.1 NaN% NaN NaN n/a   40.0 kts
20120728T211536 ssmis17 56.7 4.1% 7.2 -7.2 n/a   37.2 kts
20120728T212407 ssmis16 23.4 0.0% 2.4 -2.4 n/a   37.3 kts
20120729T083438 ssmis17 201.2 15.1% 1.0 -1.0 n/a   47.1 kts
20120729T110821 ssmis18 245.7 9.6% 1.8 -1.8 n/a   49.3 kts
20120729T210246 ssmis17 190.1 27.4% 7.3 7.3 n/a   55.0 kts
20120729T212020 ssmis16 190.1 26.0% 4.2 4.2 n/a   55.0 kts
20120729T213001 tmi 190.1 19.2% 5.6 5.6 n/a   55.0 kts
20120729T235640 ssmis18 256.8 NaN% NaN NaN n/a   55.0 kts
20120730T054043 tmi 90.1 15.1% 0.5 0.5 n/a   64.9 kts
20120730T073850 ssmi15 56.7 0.0% 2.4 2.4 n/a   65.0 kts
20120730T111102 ssmis18 67.8 1.4% 2.9 2.9 n/a   65.0 kts
20120730T201020 ssmi15 134.5 NaN% NaN NaN n/a   55.0 kts
20120730T233154 ssmis18 134.5 52.0% 3.2 3.2 n/a   55.0 kts
20120731T044455 tmi 67.8 0.0% 9.7 9.7 n/a   63.9 kts
20120731T072336 ssmi15 301.3 NaN% NaN NaN n/a   65.0 kts
20120731T195401 ssmi15 67.8 4.1% 9.0 9.0 n/a   78.4 kts
20120731T211634 tmi 101.2 24.7% 9.8 9.8 n/a   80.9 kts
20120801T034902 tmi 78.9 26.0% 3.9 3.9 n/a   89.1 kts
20120801T070849 ssmi15 134.5 9.6% 6.8 6.8 n/a   90.0 kts
20120801T094808 ssmis17 67.8 NaN% NaN NaN n/a   90.0 kts
20120801T095114 ssmis16 45.6 100.0% 25.6 40.6 >65 kts   90.0 kts
20120801T221140 ssmis16 212.4 NaN% NaN NaN n/a   79.0 kts
20120801T221825 ssmis17 190.1 NaN% NaN NaN n/a   78.7 kts
20120802T025308 tmi 67.8 NaN% NaN NaN n/a   58.9 kts
20120802T091424 ssmis17 323.5 NaN% NaN NaN n/a   45.0 kts
20120802T093851 ssmis16 323.5 NaN% NaN NaN n/a   45.0 kts
20120802T210114 tmi 56.7 24.7% 1.3 -1.3 n/a   39.9 kts
20120802T220503 ssmis17 312.4 NaN% NaN NaN n/a   37.4 kts
20120803T004617 ssmis18 167.9 0.0% 1.5 -1.5 n/a   35.0 kts
20120803T015456 tmi 12.2 0.0% 0.6 -0.6 n/a   35.0 kts
20120803T092330 ssmis17 134.5 9.6% 1.1 -1.1 n/a   27.8 kts
20120803T092647 ssmis16 201.2 8.2% 0.0 -0.0 n/a   27.8 kts
20120803T120551 ssmis18 123.4 16.4% 1.4 -1.4 n/a   24.9 kts
20120803T204715 ssmi15 312.4 NaN% NaN NaN n/a   20.5 kts
20120803T214229 tmi 223.5 NaN% NaN NaN n/a   20.3 kts
20120803T214722 ssmis17 267.9 NaN% NaN NaN n/a   20.3 kts
20120803T215516 ssmis16 256.8 8.2% 0.1 -0.1 n/a   20.2 kts
20120804T023602 tmi 245.7 0.0% 0.3 -0.3 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.