Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20200713T232912 ssmis16_85 177.6 61.7 0.0% 2.1 -2.1 n/a   30.0 kts
20200714T002247 ssmis18_85 77.7 33.9 0.0% 2.3 -2.3 n/a   29.7 kts
20200714T021438 ssmis17_85 55.5 22.8 0.0% 6.3 -6.3 n/a   28.1 kts
20200714T095155 amsr2_85 333.0 156.2 NaN% NaN NaN n/a   25.0 kts
20200714T120348 ssmis16_85 299.7 128.4 NaN% NaN NaN n/a   25.0 kts
20200714T125732 ssmis18_85 277.5 128.4 NaN% NaN NaN n/a   25.0 kts
20200714T144837 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   25.0 kts
20200714T204455 amsr2_85 166.5 78.4 NaN% NaN NaN n/a   25.0 kts
20200715T001050 ssmis18_85 99.9 45.0 6.8% 7.9 -7.9 n/a   24.9 kts
20200715T020153 ssmis17_85 77.7 33.9 0.0% 2.0 -2.0 n/a   24.2 kts
20200715T143532 ssmis17_85 22.2 6.1 0.0% 1.9 -1.9 n/a   20.0 kts
20200715T212810 amsr2_85 199.8 95.1 0.0% 4.3 -4.3 n/a   20.0 kts
20200716T004516 ssmis16_85 33.3 11.7 0.0% 1.7 -1.7 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).