Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20230208T034829 amsr2_85 99.9 45.0 16.4% 3.2 -3.2 n/a   41.3 kts
20230208T055551 ssmis18_85 77.7 45.0 31.5% 8.7 -8.7 n/a   44.9 kts
20230208T103724 gmi_85 333.0 161.8 NaN% NaN NaN n/a   48.9 kts
20230208T170815 ssmis18_85 177.6 156.2 NaN% NaN NaN n/a   50.0 kts
20230208T191155 ssmis16_85 166.5 78.4 35.6% 11.3 -11.3 n/a   50.0 kts
20230208T235724 gmi_85 33.3 6.1 28.8% 12.5 -12.5 n/a   50.0 kts
20230209T054159 ssmis18_85 144.3 67.3 39.7% 3.3 -3.3 n/a   64.2 kts
20230209T152424 amsr2_85 66.6 28.4 35.6% 3.8 3.8 n/a   72.8 kts
20230209T165559 ssmis18_85 144.3 NaN 0.0% 0.8 -920.0 n/a   74.1 kts
20230209T185947 ssmis16_85 88.8 39.5 16.4% 9.7 9.7 n/a   75.8 kts
20230210T033408 amsr2_85 177.6 67.3 31.5% 9.3 9.3 n/a   85.9 kts
20230210T052748 ssmis18_85 210.9 100.6 69.9% 17.1 17.1 n/a   89.1 kts
20230210T143014 amsr2_85 233.1 111.7 20.6% 5.2 5.2 n/a   66.7 kts
20230210T164355 ssmis18_85 210.9 122.9 31.5% 7.8 7.8 n/a   59.2 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).