Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20210823T113703 ssmis18_85 111.0 161.8 NaN% NaN NaN n/a   35.0 kts
20210823T115507 ssmis16_85 55.5 17.2 58.9% 0.0 -0.0 n/a   35.0 kts
20210823T134421 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   36.4 kts
20210823T210359 amsr2_85 155.4 72.8 8.2% 5.3 -5.3 n/a   40.0 kts
20210824T043518 gmi_85 33.3 50.6 0.0% 2.3 -2.3 n/a   36.2 kts
20210824T091423 amsr2_85 88.8 39.5 0.0% 2.2 -2.2 n/a   32.3 kts
20210824T151213 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210824T175018 gmi_85 22.2 6.1 0.0% 0.3 -0.3 n/a   30.0 kts
20210824T214710 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   29.6 kts
20210825T002002 ssmis18_85 177.6 83.9 2.7% 4.7 -4.7 n/a   28.1 kts
20210825T003739 ssmis16_85 155.4 72.8 1.4% 4.7 -4.7 n/a   28.0 kts
20210825T022627 ssmis17_85 177.6 83.9 5.5% 4.0 -4.0 n/a   27.0 kts
20210825T095722 amsr2_85 266.4 128.4 NaN% NaN NaN n/a   25.0 kts
20210825T125245 ssmis18_85 244.2 117.3 0.0% 3.2 -3.2 n/a   25.0 kts
20210825T131020 ssmis16_85 122.1 56.1 0.0% 2.7 -2.7 n/a   25.0 kts
20210825T145844 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   25.0 kts
20210826T000730 ssmis18_85 88.8 39.5 0.0% 2.6 -2.6 n/a   22.4 kts
20210826T002453 ssmis16_85 88.8 39.5 0.0% 2.0 -2.0 n/a   22.3 kts
20210826T021318 ssmis17_85 44.4 17.2 0.0% 0.0 -0.0 n/a   21.6 kts
20210826T124023 ssmis18_85 144.3 67.3 0.0% 1.5 -1.5 n/a   20.0 kts
20210826T125742 ssmis16_85 144.3 67.3 0.0% 1.6 -1.6 n/a   20.0 kts
20210826T144545 ssmis17_85 133.2 61.7 NaN% NaN NaN n/a   20.0 kts
20210826T213501 amsr2_85 33.3 11.7 0.0% 4.7 -4.7 n/a   20.0 kts
20210827T050518 gmi_85 144.3 67.3 0.0% 1.2 -1.2 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).