Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121009T101223 tmi 201.2 0.0% 4.1 -4.1 n/a   35.0 kts
20121010T222703 tmi 201.2 6.8% 4.8 -4.8 n/a   35.0 kts
20121012T090138 tmi 45.6 48.0% 19.1 -19.1 n/a   35.0 kts
20121012T221325 tmi 56.7 46.6% 15.7 -15.7 n/a   43.5 kts
20121012T221329 tmi 56.7 49.3% 16.1 -16.1 n/a   43.5 kts
20121012T225535 ssmi15 67.8 53.4% 20.7 -20.7 n/a   44.1 kts
20121013T032650 ssmis18 12.2 79.5% 2.8 -2.8 n/a   47.6 kts
20121013T080458 tmi 56.7 100.0% 29.4 -44.4 n/a   51.0 kts
20121013T080500 tmi 56.7 100.0% 29.2 -44.2 n/a   51.0 kts
20121013T113300 ssmi15 78.9 64.4% 22.6 -22.6 n/a   54.5 kts
20121013T123908 ssmis16 67.8 NaN% NaN NaN n/a   55.9 kts
20121013T160618 ssmis18 56.7 100.0% 36.1 51.1 >65 kts   63.5 kts
20121014T012429 ssmis17 34.5 93.2% 18.0 33.0 >65 kts   88.0 kts
20121014T013221 ssmis16 34.5 78.1% 15.4 15.4 n/a   88.2 kts
20121014T031534 ssmis18 45.6 100.0% 23.0 38.0 >65 kts   92.1 kts
20121014T111644 ssmi15 34.5 100.0% 42.8 57.8 >65 kts   104.9 kts
20121014T153925 ssmis18 34.5 100.0% 36.4 51.4 >65 kts   103.9 kts
20121014T215914 tmi 45.6 50.7% 20.1 20.1 >65 kts   100.4 kts
20121014T215918 tmi 45.6 50.7% 20.9 20.9 >65 kts   100.4 kts
20121015T005951 ssmis16 90.1 100.0% 61.9 76.9 >85 kts# 100.0 kts
20121015T011203 ssmis17 101.2 100.0% 58.5 73.5 >85 kts# 100.0 kts
20121015T134902 ssmis17 112.3 46.6% 0.4 0.4 n/a   99.2 kts
20121015T135702 ssmis16 112.3 50.7% 2.1 2.1 n/a   99.1 kts
20121015T154105 ssmis18 NaN 0.0% 0.0 -920.0 n/a   97.0 kts
20121016T005955 ssmis17 12.2 60.3% 0.7 0.7 n/a   78.0 kts
20121016T010749 ssmis16 12.2 72.6% 0.1 0.1 n/a   77.8 kts
20121016T065507 tmi 12.2 82.2% 5.6 5.6 n/a   64.4 kts
20121016T133609 ssmis17 201.2 8.2% 2.7 2.7 n/a   53.2 kts
20121016T134405 ssmis16 190.1 6.8% 3.6 3.6 n/a   53.1 kts
20121016T214617 tmi 212.4 0.0% 2.5 -2.5 n/a   46.7 kts
20121016T233551 ssmi15 212.4 0.0% 3.7 -3.7 n/a   45.3 kts
20121017T042118 ssmis18 190.1 0.0% 2.9 -2.9 n/a   40.5 kts
20121017T055812 tmi 201.2 NaN% NaN NaN n/a   38.8 kts
20121017T121009 ssmi15 145.7 0.0% 1.7 -1.7 n/a   35.0 kts
20121017T165726 ssmis18 212.4 0.0% 3.5 -3.5 n/a   34.7 kts
20121018T021612 ssmis17 5.0 0.0% 0.0 -0.0 n/a   30.0 kts
20121018T041002 ssmis18 190.1 NaN% NaN NaN n/a   30.0 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).