Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121222T041338 tmi 23.4 11.0% 7.8 -7.8 n/a   30.0 kts
20121222T172723 tmi 12.2 0.0% 4.8 -4.8 n/a   30.0 kts
20121224T035906 tmi 267.9 NaN% NaN NaN n/a   30.0 kts
20121224T171224 tmi NaN 34.2% 1.1 -920.0 n/a   30.0 kts
20121224T213714 ssmis17 223.5 NaN% NaN NaN n/a   30.0 kts
20121225T030331 tmi 101.2 50.7% 0.0 -0.0 n/a   30.0 kts
20121225T085834 ssmis16 23.4 1.4% 6.1 -6.1 n/a   30.0 kts
20121225T105246 ssmis18 34.5 30.1% 4.5 -4.5 n/a   30.0 kts
20121225T212419 ssmis17 167.9 NaN% NaN NaN n/a   35.0 kts
20121225T213641 ssmis16 23.4 0.0% 0.0 -0.0 n/a   35.0 kts
20121225T235918 ssmis18 90.1 5.5% 0.0 -0.0 n/a   35.0 kts
20121226T072711 ssmi15 156.8 NaN% NaN NaN n/a   35.0 kts
20121226T165645 tmi 212.4 0.0% 3.2 -3.2 n/a   25.8 kts
20121226T165701 tmi 167.9 NaN% NaN NaN n/a   25.8 kts
20121226T200347 ssmi15 90.1 0.0% 4.0 -4.0 n/a   25.0 kts
20121226T212427 ssmis16 101.2 0.0% 2.9 -2.9 n/a   25.0 kts
20121226T235416 ssmis18 179.0 NaN% NaN NaN n/a   25.0 kts
20121227T024738 tmi 90.1 0.0% 5.1 -5.1 n/a   25.0 kts
20121227T024747 tmi 145.7 0.0% 6.8 -6.8 n/a   25.0 kts
20121227T100053 ssmis16 245.7 NaN% NaN NaN n/a   25.0 kts
20121227T100142 ssmis17 301.3 NaN% NaN NaN n/a   25.0 kts
20121227T124431 ssmis18 67.8 34.2% 0.3 -0.3 n/a   25.0 kts
20121227T194825 ssmi15 267.9 NaN% NaN NaN n/a   25.0 kts
20121227T224018 ssmis17 201.2 31.5% 2.6 -2.6 n/a   25.0 kts
20121228T091152 ssmis16 45.6 0.0% 2.9 -2.9 n/a   25.0 kts
20121228T094837 ssmis17 201.2 NaN% NaN NaN n/a   25.0 kts
20121228T123159 ssmis18 12.2 0.0% 3.0 -3.0 n/a   25.0 kts
20121228T164025 tmi 5.0 26.0% 3.1 -3.1 n/a   24.5 kts
20121228T222837 ssmis17 112.3 1.4% 4.6 -4.6 n/a   20.4 kts
20121228T222946 ssmis16 45.6 5.5% 1.0 -1.0 n/a   20.4 kts
20121229T005943 ssmis18 101.2 4.1% 3.7 -3.7 n/a   20.0 kts
20121229T082013 ssmi15 123.4 13.7% 3.8 -3.8 n/a   20.0 kts
20121229T111616 ssmis17 190.1 NaN% NaN NaN n/a   20.0 kts
20121229T154306 tmi 212.4 NaN% NaN NaN 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).