Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20230821T194114 gmi_85 177.6 83.9 8.2% 3.8 -3.8 n/a   30.0 kts
20230821T230400 ssmis16_85 55.5 22.8 2.7% 0.1 -0.1 n/a   30.0 kts
20230822T004559 ssmis17_85 155.4 28.4 23.3% 1.2 -1.2 n/a   31.3 kts
20230822T082315 amsr2_85 244.2 117.3 16.4% 5.6 -5.6 n/a   40.0 kts
20230822T131512 ssmis17_85 166.5 161.8 NaN% NaN NaN n/a   39.0 kts
20230822T192110 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   33.9 kts
20230822T202114 gmi_85 333.0 161.8 NaN% NaN NaN n/a   33.0 kts
20230822T223950 ssmis18_85 144.3 56.1 6.2% 0.6 -0.6 n/a   31.1 kts
20230823T003317 ssmis17_85 288.6 150.7 NaN% NaN NaN n/a   29.5 kts
20230823T060614 gmi_85 277.5 156.2 NaN% NaN NaN n/a   25.0 kts
20230823T110759 ssmis18_85 310.8 150.7 NaN% NaN NaN n/a   23.8 kts
20230823T130105 ssmis17_85 99.9 45.0 0.0% 1.1 -1.1 n/a   22.8 kts
20230823T130109 ssmis16_85 11.1 2.5 0.0% 0.6 -0.6 n/a   22.8 kts
20230823T200446 amsr2_85 33.3 11.7 0.0% 2.3 -2.3 n/a   20.0 kts
20230823T222725 ssmis18_85 244.2 117.3 0.0% 2.9 -2.9 n/a   20.0 kts
20230824T002015 ssmis16_85 321.9 156.2 NaN% NaN NaN 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).