Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20230106T193927 ssmis17_85 222.0 106.2 13.7% 0.0 -0.0 n/a   36.4 kts
20230106T203723 gmi_85 33.3 6.1 NaN% NaN NaN n/a   37.2 kts
20230107T060530 ssmis18_85 66.6 11.7 71.2% 1.4 -1.4 n/a   40.1 kts
20230107T063141 ssmis16_85 255.3 128.4 NaN% NaN NaN n/a   40.4 kts
20230107T081128 ssmis17_85 11.1 NaN 58.9% 0.0 -920.0 n/a   41.8 kts
20230107T172024 ssmis18_85 33.3 106.2 NaN% NaN NaN n/a   45.0 kts
20230107T174636 ssmis16_85 66.6 95.1 NaN% NaN NaN n/a   45.0 kts
20230107T192611 ssmis17_85 333.0 72.8 0.0% 2.5 -2.5 n/a   43.8 kts
20230108T061654 ssmis16_85 277.5 134.0 NaN% NaN NaN n/a   35.0 kts
20230108T075636 ssmis17_85 255.3 122.9 NaN% NaN NaN n/a   35.0 kts
20230108T173416 ssmis16_85 44.4 17.2 0.0% 0.0 -0.0 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).