Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20221009T230233 ssmis16_85 333.0 6.1 17.8% 1.2 -1.2 n/a   40.8 kts
20221009T233940 ssmis17_85 299.7 161.8 NaN% NaN NaN n/a   40.3 kts
20221010T080159 amsr2_85 44.4 17.2 100.0% 21.4 -36.5 n/a   35.0 kts
20221010T113919 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20221010T121628 ssmis17_85 44.4 22.8 50.7% 2.1 -2.1 n/a   34.5 kts
20221010T221313 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   22.0 kts
20221010T224956 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   21.3 kts
20221011T022223 gmi_85 22.2 6.1 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).