Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121009T054053 tmi 5.0 0.0% 2.4 -2.4 n/a   30.0 kts
20121009T153129 tmi 5.0 0.0% 7.6 -7.6 n/a   30.0 kts
20121011T052606 tmi 34.5 0.0% 1.6 -1.6 n/a   30.0 kts
20121011T151619 tmi 5.0 4.1% 5.0 -5.0 n/a   30.0 kts
20121012T060741 tmi 12.2 0.0% 3.5 -3.5 n/a   30.0 kts
20121012T141934 tmi 5.0 0.0% 4.8 -4.8 n/a   30.0 kts
20121013T051123 tmi 23.4 NaN% NaN NaN n/a   30.0 kts
20121014T055251 tmi 67.8 32.9% 10.5 -10.5 n/a   30.0 kts
20121014T071009 ssmis16 23.4 54.8% 12.6 -12.6 n/a   31.4 kts
20121014T140358 tmi 23.4 13.7% 7.7 -7.7 n/a   35.0 kts
20121014T195740 ssmis17 78.9 53.4% 1.8 -1.8 n/a   38.8 kts
20121014T200523 ssmis16 90.1 49.3% 3.4 -3.4 n/a   39.2 kts
20121015T045531 tmi 90.1 NaN% NaN NaN n/a   50.0 kts
20121015T060458 ssmi15 101.2 5.5% 7.2 -7.2 n/a   50.0 kts
20121015T130912 tmi 167.9 NaN% NaN NaN n/a   50.0 kts
20121015T183449 ssmi15 67.8 53.4% 11.1 -11.1 n/a   50.0 kts
20121016T054104 tmi 23.4 1.4% 4.1 -4.1 n/a   55.0 kts
20121016T100444 ssmis18 34.5 100.0% 24.3 39.3 >65 kts   55.0 kts
20121016T103506 tmi 223.5 NaN% NaN NaN n/a   55.0 kts
20121016T181812 ssmi15 112.3 39.7% 8.4 8.4 n/a   55.0 kts
20121016T230248 ssmis18 23.4 72.6% 7.6 -7.6 n/a   55.0 kts
20121017T053612 ssmi15 78.9 24.7% 4.3 -4.3 n/a   50.4 kts
20121017T062411 tmi 56.7 13.7% 9.1 -9.1 n/a   49.6 kts
20121017T094004 tmi 34.5 49.3% 7.3 -7.3 n/a   46.2 kts
20121017T102248 ssmis18 45.6 100.0% 27.3 -42.3 n/a   45.6 kts
20121017T180127 ssmi15 23.4 56.2% 4.1 -4.1 n/a   45.0 kts
20121017T224942 ssmis18 67.8 100.0% 22.8 -37.8 n/a   45.0 kts
20121018T052048 ssmi15 67.8 12.3% 8.3 -8.3 n/a   40.6 kts
20121018T053016 tmi 123.4 11.0% 6.5 -6.5 n/a   40.4 kts
20121018T054729 ssmis17 145.7 1.4% 5.4 -5.4 n/a   40.2 kts
20121018T064402 ssmis16 134.5 6.8% 4.0 -4.0 n/a   39.3 kts
20121018T070815 tmi 67.8 9.4% 8.0 -8.0 n/a   38.9 kts
20121018T084609 tmi 190.1 0.0% 7.6 -7.6 n/a   37.1 kts
20121018T174533 ssmi15 67.8 0.0% 3.4 -3.4 n/a   35.0 kts
20121018T190232 ssmis16 279.1 0.0% 8.7 -8.7 n/a   35.0 kts
20121019T043559 tmi 156.8 0.0% 3.9 -3.9 n/a   31.0 kts
20121019T062226 ssmis17 112.3 0.0% 4.2 -4.2 n/a   29.8 kts
20121019T063027 ssmis16 123.4 0.0% 4.7 -4.7 n/a   29.7 kts
20121019T075151 tmi 134.5 0.0% 4.5 -4.5 n/a   28.7 kts
20121019T184950 ssmis17 212.4 NaN% NaN NaN n/a   20.0 kts
20121019T185737 ssmis16 12.2 0.0% 3.7 -3.7 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.

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).