Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20171003T080640 amsr2_85 33.3 161.8 NaN% NaN NaN n/a   40.0 kts
20171004T101402 ssmis16_85 122.1 50.6 42.6% 2.8 -2.8 n/a   40.0 kts
20171004T103139 gmi_85 44.4 161.8 NaN% NaN NaN n/a   40.0 kts
20171004T122532 ssmis18_85 44.4 17.2 71.2% 12.2 -12.2 n/a   40.0 kts
20171004T130027 ssmis17_85 44.4 17.2 79.5% 15.8 -15.8 n/a   40.0 kts
20171004T194111 amsr2_85 277.5 134.0 NaN% NaN NaN n/a   37.2 kts
20171004T235140 gmi_85 288.6 150.7 NaN% NaN NaN n/a   30.2 kts
20171005T011826 ssmis18_85 288.6 156.2 0.0% 1.8 -1.8 n/a   27.8 kts
20171005T094830 ssmi15_85 299.7 145.1 NaN% NaN NaN n/a   20.0 kts
20171005T111640 gmi_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20171005T135426 ssmis18_85 333.0 161.8 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).