Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
20150920T143313 ssmis17_85 245.7 NaN% NaN NaN n/a   30.0 kts
20150920T143542 ssmis19_85 256.8 NaN% NaN NaN n/a   30.0 kts
20150920T150438 ssmis18_85 212.4 NaN% NaN NaN n/a   30.0 kts
20150921T014953 ssmis17_85 156.8 25.4% 2.4 -2.4 n/a   30.0 kts
20150921T015220 ssmis19_85 190.1 NaN% NaN NaN n/a   30.0 kts
20150921T022137 ssmis18_85 190.1 NaN% NaN NaN n/a   30.0 kts
20150921T093701 amsr2_85 167.9 NaN% NaN NaN n/a   30.0 kts
20150921T124036 ssmis16_85 323.5 NaN% NaN NaN n/a   29.4 kts
20150921T141655 ssmis17_85 279.1 NaN% NaN NaN n/a   28.1 kts
20150921T142046 ssmis19_85 323.5 NaN% NaN NaN n/a   28.0 kts
20150921T145030 ssmis18_85 323.5 NaN% NaN NaN n/a   27.6 kts
20150921T203601 amsr2_85 190.1 0.0% 0.5 -0.5 n/a   25.0 kts
20150922T013815 ssmis17_85 290.2 NaN% NaN NaN n/a   25.0 kts
20150922T014034 ssmis19_85 290.2 NaN% NaN NaN n/a   25.0 kts
20150922T021052 ssmis18_85 12.2 0.0% 1.6 -1.6 n/a   25.0 kts
20150922T025641 gmi_85 101.2 0.0% 0.5 -0.5 n/a   25.0 kts
20150922T084004 amsr2_85 323.5 NaN% NaN NaN n/a   25.0 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).