Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20210829T083335 ssmis18_85 155.4 72.8 NaN% NaN NaN n/a   36.4 kts
20210829T103657 ssmis17_85 144.3 67.3 35.6% 8.2 -8.2 n/a   41.5 kts
20210829T183128 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   50.0 kts
20210829T215019 gmi_85 88.8 45.0 28.8% 3.7 -3.7 n/a   50.0 kts
20210830T051406 amsr2_85 33.3 11.7 15.1% 6.8 -6.8 n/a   50.0 kts
20210830T102147 ssmis17_85 188.7 89.5 NaN% NaN NaN n/a   50.0 kts
20210830T180331 ssmis18_85 122.1 56.1 NaN% NaN NaN n/a   50.0 kts
20210830T181940 ssmis16_85 144.3 67.3 NaN% NaN NaN n/a   50.0 kts
20210830T200630 ssmis17_85 88.8 39.5 NaN% NaN NaN n/a   50.0 kts
20210830T205518 gmi_85 333.0 161.8 NaN% NaN NaN n/a   50.0 kts
20210831T041650 amsr2_85 22.2 6.1 5.5% 8.3 -8.3 n/a   48.2 kts
20210831T080359 ssmis18_85 22.2 6.1 16.4% 4.2 -4.2 n/a   46.6 kts
20210831T082002 ssmis16_85 22.2 6.1 64.4% 4.7 -4.7 n/a   46.5 kts
20210831T100554 ssmis17_85 88.8 39.5 100.0% 12.7 -27.7 n/a   45.8 kts
20210831T120018 gmi_85 321.9 156.2 NaN% NaN NaN n/a   45.0 kts
20210831T152550 amsr2_85 11.1 2.5 24.7% 7.4 -7.4 n/a   43.6 kts
20210831T175238 ssmis18_85 22.2 6.1 94.5% 9.0 -24.0 n/a   42.6 kts
20210831T180907 ssmis16_85 22.2 6.1 93.2% 9.0 -24.0 n/a   42.4 kts
20210831T195444 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   41.7 kts
20210831T200018 gmi_85 222.0 106.2 NaN% NaN NaN n/a   41.7 kts
20210901T045719 amsr2_85 33.3 11.7 0.0% 1.3 -1.3 n/a   40.0 kts
20210901T060821 ssmis18_85 210.9 100.6 NaN% NaN NaN n/a   40.0 kts
20210901T062403 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   40.0 kts
20210901T074851 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   40.0 kts
20210901T080433 ssmis16_85 44.4 17.2 57.5% 9.2 -9.2 n/a   40.0 kts
20210901T095021 ssmis17_85 144.3 67.3 NaN% NaN NaN n/a   40.0 kts
20210901T124519 gmi_85 111.0 50.6 NaN% NaN NaN n/a   40.0 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).