Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20230227T051123 ssmis18_85 199.8 156.2 NaN% NaN NaN n/a   39.3 kts
20230227T053211 ssmis16_85 277.5 161.8 NaN% NaN NaN n/a   39.6 kts
20230227T064959 ssmis17_85 255.3 139.5 NaN% NaN NaN n/a   40.7 kts
20230227T162150 ssmis18_85 333.0 61.7 0.0% 3.9 -3.9 n/a   48.6 kts
20230228T040223 gmi_85 111.0 50.6 100.0% 29.9 44.9 >65 kts   61.7 kts
20230228T045745 ssmis18_85 111.0 56.1 100.0% 24.5 39.5 >65 kts   63.3 kts
20230228T160923 ssmis18_85 55.5 22.8 100.0% 35.1 50.1 >65 kts   81.9 kts
20230228T171723 gmi_85 33.3 11.7 NaN% NaN NaN n/a   83.8 kts
20230228T181124 ssmis16_85 44.4 11.7 100.0% 50.6 65.6 >85 kts# 85.3 kts
20230228T192844 ssmis17_85 44.4 11.7 100.0% 66.1 81.1 >85 kts# 87.5 kts
20230301T044339 ssmis18_85 11.1 2.5 100.0% 14.4 29.4 >65 kts   102.9 kts
20230301T155733 ssmis18_85 199.8 95.1 43.1% 0.0 0.0 n/a   103.4 kts
20230301T162723 gmi_85 333.0 161.8 NaN% NaN NaN n/a   102.6 kts
20230301T175924 ssmis16_85 22.2 NaN 39.7% 3.0 -920.0 n/a   100.0 kts
20230301T191617 ssmis17_85 22.2 161.8 NaN% NaN NaN n/a   97.9 kts
20230302T042923 ssmis18_85 11.1 78.4 100.0% 28.2 43.2 >65 kts   90.0 kts
20230302T063105 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   89.1 kts
20230302T154531 ssmis18_85 11.1 NaN 34.2% 0.0 -920.0 n/a   80.0 kts
20230303T041524 ssmis18_85 233.1 106.2 20.6% 2.7 2.7 n/a   64.4 kts
20230303T153238 ssmis18_85 177.6 83.9 50.7% 6.9 6.9 n/a   56.4 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).