Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121222T024535 tmi 12.2 0.0% 4.1 -4.1 n/a   35.0 kts
20121222T141719 tmi 112.3 NaN% NaN NaN n/a   35.0 kts
20121223T024047 tmi 12.2 0.0% 0.0 -0.0 n/a   35.0 kts
20121224T023220 tmi 212.4 1.4% 5.8 -5.8 n/a   35.0 kts
20121225T022424 tmi 90.1 0.0% 0.2 -0.2 n/a   35.0 kts
20121225T130710 tmi 67.8 0.0% 0.1 -0.1 n/a   35.0 kts
20121226T021833 tmi 5.0 0.0% 1.8 -1.8 n/a   35.0 kts
20121226T121058 tmi 167.9 8.2% 6.2 -6.2 n/a   35.0 kts
20121227T012248 tmi 45.6 NaN% NaN NaN n/a   35.0 kts
20121228T190928 ssmis17 112.3 100.0% 22.2 -37.2 n/a   46.4 kts
20121229T010936 tmi 101.2 50.7% 6.4 6.4 n/a   57.2 kts
20121229T045122 ssmi15 67.8 21.9% 12.5 12.5 n/a   65.0 kts
20121229T074708 ssmis17 212.4 NaN% NaN NaN n/a   71.4 kts
20121229T110015 tmi 78.9 78.1% 28.6 28.6 >65 kts   78.1 kts
20121229T185708 ssmis17 56.7 100.0% 41.0 56.0 >65 kts   93.5 kts
20121229T191007 ssmis16 56.7 100.0% 41.0 56.0 >65 kts   93.9 kts
20121229T214145 ssmis18 56.7 100.0% 44.2 59.2 >65 kts   97.7 kts
20121230T043512 ssmi15 101.2 NaN% NaN NaN n/a   102.8 kts
20121230T073344 ssmis17 45.6 28.8% 9.0 9.0 n/a   104.1 kts
20121230T100446 tmi 56.7 100.0% 44.8 59.8 >65 kts   104.8 kts
20121230T184459 ssmis17 NaN 8.2% 0.0 -920.0 n/a   101.8 kts
20121230T185757 ssmis16 212.4 NaN% NaN NaN n/a   101.6 kts
20121230T213012 ssmis18 NaN 8.2% 0.0 -920.0 n/a   99.0 kts
20121231T005644 tmi 34.5 67.1% 12.9 12.9 n/a   94.7 kts
20121231T071152 ssmis16 212.4 NaN% NaN NaN n/a   85.8 kts
20121231T072002 ssmis17 12.2 75.3% 9.6 9.6 n/a   85.6 kts
20121231T090652 tmi 23.4 49.3% 12.9 12.9 n/a   83.0 kts
20121231T100252 ssmis18 34.5 74.0% 0.0 0.0 n/a   81.7 kts
20121231T183252 ssmis17 179.0 NaN% NaN NaN n/a   72.2 kts
20121231T184534 ssmis16 190.1 8.2% 3.1 3.1 n/a   72.0 kts
20121231T210046 ssmis18 134.5 0.0% 4.1 4.1 n/a   70.7 kts
20121231T235926 tmi 179.0 NaN% NaN NaN n/a   70.0 kts
20130101T061916 ssmis17 212.4 8.2% 3.2 3.2 n/a   66.3 kts
20130101T064703 ssmis16 212.4 5.5% 5.3 5.3 n/a   65.3 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).