Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20180613T172640 amsr2_85 22.2 6.1 0.0% 0.0 -0.0 n/a   30.0 kts
20180613T183138 gmi_85 333.0 161.8 NaN% NaN NaN n/a   30.4 kts
20180613T191949 ssmis16_85 333.0 6.1 NaN% NaN NaN n/a   31.1 kts
20180613T222320 ssmis18_85 33.3 28.4 0.0% 0.1 -0.1 n/a   33.7 kts
20180613T224420 ssmis17_85 77.7 28.4 NaN% NaN NaN n/a   33.9 kts
20180614T042325 amsr2_85 55.5 28.4 24.7% 1.9 -1.9 n/a   35.0 kts
20180614T063654 ssmis16_85 122.1 39.5 NaN% NaN NaN n/a   35.0 kts
20180614T094040 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20180614T100130 ssmis17_85 144.3 39.5 NaN% NaN NaN n/a   35.0 kts
20180614T162938 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20180614T190459 ssmis16_85 166.5 78.4 0.0% 4.5 -4.5 n/a   35.0 kts
20180614T222923 ssmis17_85 188.7 89.5 NaN% NaN NaN n/a   35.0 kts
20180615T032912 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20180615T062437 ssmis16_85 33.3 11.7 0.0% 2.9 -2.9 n/a   35.0 kts
20180615T074739 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   35.0 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).