Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20211212T054100 ssmis18_85 55.5 22.8 43.8% 14.1 -14.1 n/a   44.5 kts
20211212T081732 ssmis17_85 55.5 22.8 91.8% 17.2 -32.2 n/a   46.9 kts
20211212T143428 amsr2_85 22.2 6.1 43.8% 0.0 -0.0 n/a   56.4 kts
20211212T144019 gmi_85 22.2 6.1 57.5% 1.4 -1.4 n/a   56.7 kts
20211212T192914 ssmis17_85 11.1 6.1 90.4% 5.8 20.8 >65 kts   66.2 kts
20211213T024653 amsr2_85 22.2 6.1 68.5% 5.9 5.9 n/a   67.7 kts
20211213T052803 ssmis18_85 66.6 100.6 NaN% NaN NaN n/a   65.4 kts
20211213T080327 ssmis17_85 77.7 33.9 50.7% 8.8 8.8 n/a   65.0 kts
20211213T134518 gmi_85 144.3 39.5 9.6% 9.5 9.5 n/a   63.5 kts
20211213T164125 ssmis18_85 77.7 33.9 38.2% 13.2 13.2 n/a   61.1 kts
20211213T191643 ssmis17_85 99.9 50.6 NaN% NaN NaN n/a   58.9 kts
20211214T051351 ssmis18_85 44.4 17.2 34.3% 0.0 0.0 n/a   46.3 kts
20211214T074841 ssmis17_85 111.0 50.6 30.1% 8.3 8.3 n/a   45.0 kts
20211214T125518 gmi_85 166.5 83.9 15.1% 8.8 -8.8 n/a   45.0 kts
20211214T142355 amsr2_85 188.7 89.5 30.1% 8.3 -8.3 n/a   45.0 kts
20211214T162940 ssmis18_85 155.4 72.8 20.6% 7.9 -7.9 n/a   45.0 kts
20211214T190423 ssmis17_85 310.8 161.8 NaN% NaN NaN n/a   45.0 kts
20211215T021519 gmi_85 33.3 11.7 43.8% 0.2 -0.2 n/a   45.0 kts
20211215T023135 amsr2_85 33.3 11.7 24.7% 0.0 -0.0 n/a   45.0 kts
20211215T044948 ssmis16_85 199.8 95.1 NaN% NaN NaN n/a   45.0 kts
20211215T045911 ssmis18_85 177.6 83.9 11.0% 0.8 -0.8 n/a   45.0 kts
20211215T073334 ssmis17_85 288.6 139.5 NaN% NaN NaN n/a   45.0 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).