Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20191020T111417 ssmis16_85 44.4 11.7 69.9% 0.0 -0.0 n/a   34.4 kts
20191020T115527 ssmis18_85 44.4 17.2 50.7% 0.0 -0.0 n/a   34.9 kts
20191020T135208 ssmis17_85 210.9 100.6 NaN% NaN NaN n/a   35.0 kts
20191020T202010 amsr2_85 233.1 161.8 NaN% NaN NaN n/a   31.1 kts
20191020T215139 gmi_85 333.0 161.8 NaN% NaN NaN n/a   28.6 kts
20191020T222805 ssmis16_85 177.6 161.8 NaN% NaN NaN n/a   27.6 kts
20191021T010550 ssmis17_85 133.2 61.7 NaN% NaN NaN n/a   25.0 kts
20191021T083105 amsr2_85 88.8 39.5 8.8% 4.7 -4.7 n/a   21.9 kts
20191021T110038 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   20.5 kts
20191021T133812 ssmis17_85 321.9 156.2 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).