Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20230601T190614 gmi_85 44.4 17.2 0.0% 3.8 -3.8 n/a   30.0 kts
20230601T222008 ssmis16_85 244.2 117.3 NaN% NaN NaN n/a   30.0 kts
20230602T073948 amsr2_85 266.4 128.4 10.8% 12.3 -12.3 n/a   30.0 kts
20230602T103439 ssmis18_85 44.4 161.8 NaN% NaN NaN n/a   30.0 kts
20230602T183752 amsr2_85 22.2 6.1 0.0% 1.6 -1.6 n/a   35.0 kts
20230602T215158 ssmis18_85 111.0 161.8 NaN% NaN NaN n/a   35.0 kts
20230603T002330 ssmis17_85 333.0 122.9 NaN% NaN NaN n/a   35.0 kts
20230603T102206 ssmis18_85 11.1 2.5 0.0% 0.9 -0.9 n/a   31.4 kts
20230603T125307 ssmis17_85 177.6 83.9 NaN% NaN NaN n/a   29.3 kts
20230603T192002 amsr2_85 111.0 89.5 0.0% 6.7 -6.7 n/a   25.0 kts
20230603T213817 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   24.6 kts
20230604T044114 gmi_85 77.7 33.9 NaN% NaN NaN n/a   20.7 kts
20230604T072828 amsr2_85 111.0 50.6 NaN% NaN NaN n/a   20.0 kts
20230604T100908 ssmis18_85 77.7 33.9 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).