Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20201009T181349 amsr2_85 22.2 39.5 20.6% 2.1 -2.1 n/a   25.0 kts
20201010T085201 ssmis18_85 210.9 89.5 21.9% 5.1 -5.1 n/a   32.4 kts
20201010T103519 gmi_85 11.1 2.5 23.3% 0.0 -0.0 n/a   33.8 kts
20201010T112005 ssmis17_85 122.1 56.1 26.0% 4.2 -4.2 n/a   34.4 kts
20201010T212758 ssmis18_85 133.2 61.7 27.4% 6.5 -6.5 n/a   40.0 kts
20201010T235019 gmi_85 99.9 39.5 24.7% 1.7 -1.7 n/a   40.0 kts
20201010T235550 ssmis17_85 88.8 39.5 28.8% 2.4 -2.4 n/a   40.0 kts
20201011T054758 amsr2_85 33.3 161.8 NaN% NaN NaN n/a   40.0 kts
20201011T110714 ssmis17_85 66.6 28.4 NaN% NaN NaN n/a   37.6 kts
20201011T211513 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   27.3 kts
20201011T213021 ssmis16_85 310.8 150.7 NaN% NaN NaN n/a   27.1 kts
20201011T234216 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   25.2 kts
20201012T063103 amsr2_85 77.7 33.9 0.0% 2.4 -2.4 n/a   20.0 kts
20201012T084206 ssmis16_85 177.6 83.9 0.0% 1.9 -1.9 n/a   20.0 kts
20201012T100823 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   20.0 kts
20201012T102518 gmi_85 44.4 17.2 0.0% 1.9 -1.9 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).