Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20201207T114039 ssmis18_85 66.6 33.9 26.0% 11.3 -11.3 n/a   39.7 kts
20201207T132640 ssmis17_85 88.8 39.5 50.7% 11.1 -11.1 n/a   41.2 kts
20201207T194213 amsr2_85 77.7 33.9 50.7% 14.4 -14.4 n/a   46.4 kts
20201207T224733 ssmis16_85 33.3 11.7 95.9% 17.8 -32.8 n/a   49.0 kts
20201207T225232 ssmis18_85 33.3 11.7 95.9% 19.4 -34.4 n/a   49.1 kts
20201208T003819 ssmis17_85 55.5 22.8 NaN% NaN NaN n/a   50.5 kts
20201208T112725 ssmis18_85 33.3 11.7 69.9% 7.5 7.5 n/a   55.0 kts
20201208T131247 ssmis17_85 66.6 28.4 67.1% 0.1 0.1 n/a   55.0 kts
20201208T202604 amsr2_85 11.1 11.7 87.7% 2.2 17.2 n/a   53.0 kts
20201208T223546 ssmis16_85 22.2 6.1 100.0% 13.1 28.1 >65 kts   51.2 kts
20201209T083706 amsr2_85 77.7 11.7 9.6% 0.0 -0.0 n/a   43.9 kts
20201209T110845 ssmis16_85 177.6 78.4 NaN% NaN NaN n/a   42.9 kts
20201210T015400 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   40.0 kts
20201210T201441 amsr2_85 321.9 NaN 100.0% 13.0 -920.0 n/a   35.0 kts
20201210T235727 ssmis18_85 277.5 134.0 NaN% NaN NaN n/a   35.0 kts
20201211T014054 ssmis17_85 277.5 139.5 NaN% NaN NaN n/a   35.0 kts
20201211T082428 amsr2_85 188.7 89.5 0.0% 2.2 -2.2 n/a   35.0 kts
20201211T122936 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   33.1 kts
20201211T141243 ssmis17_85 111.0 50.6 0.0% 0.0 -0.0 n/a   32.1 kts
20201211T205739 amsr2_85 77.7 33.9 0.0% 1.2 -1.2 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).