Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20200815T235756 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20200816T001057 ssmis18_85 77.7 33.9 NaN% NaN NaN n/a   30.0 kts
20200816T124433 ssmis18_85 77.7 28.4 42.5% 0.0 -0.0 n/a   35.0 kts
20200816T212844 amsr2_85 66.6 28.4 13.7% 2.5 -2.5 n/a   32.1 kts
20200817T003439 ssmis16_85 44.4 6.1 NaN% NaN NaN n/a   29.5 kts
20200817T030738 ssmis17_85 333.0 106.2 NaN% NaN NaN n/a   27.4 kts
20200817T093814 amsr2_85 22.2 17.2 0.0% 3.9 -3.9 n/a   25.0 kts
20200817T130552 ssmis16_85 244.2 117.3 NaN% NaN NaN n/a   25.0 kts
20200817T153823 ssmis17_85 55.5 22.8 0.0% 3.0 -3.0 n/a   24.6 kts
20200817T221237 amsr2_85 55.5 22.8 0.0% 2.7 -2.7 n/a   21.0 kts
20200818T002157 ssmis16_85 44.4 17.2 0.0% 4.1 -4.1 n/a   20.0 kts
20200818T012843 ssmis18_85 255.3 122.9 0.0% 0.8 -0.8 n/a   20.0 kts
20200818T025422 ssmis17_85 22.2 6.1 0.0% 0.6 -0.6 n/a   20.0 kts
20200818T102118 amsr2_85 66.6 28.4 0.0% 2.3 -2.3 n/a   20.0 kts
20200818T125302 ssmis16_85 44.4 17.2 0.0% 2.0 -2.0 n/a   19.6 kts
20200818T135935 ssmis18_85 77.7 33.9 0.0% 1.1 -1.1 n/a   19.2 kts
20200818T152514 ssmis17_85 44.4 17.2 0.0% 0.3 -0.3 n/a   18.6 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).