Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20170804T092014 amsr2_85 33.3 161.8 NaN% NaN NaN n/a   25.0 kts
20170804T201259 amsr2_85 321.9 156.2 NaN% NaN NaN n/a   30.0 kts
20170804T225719 ssmis16_85 55.5 22.8 0.0% 4.5 -4.5 n/a   30.0 kts
20170805T015746 ssmis17_85 155.4 72.8 0.0% 7.0 -7.0 n/a   30.0 kts
20170805T113045 ssmis16_85 88.8 39.5 19.2% 2.5 -2.5 n/a   30.0 kts
20170805T143101 ssmis17_85 288.6 139.5 NaN% NaN NaN n/a   27.9 kts
20170805T180639 gmi_85 333.0 22.8 NaN% NaN NaN n/a   25.0 kts
20170805T205634 amsr2_85 222.0 106.2 0.0% 3.2 -3.2 n/a   25.0 kts
20170805T220412 ssmi15_85 77.7 33.9 0.0% 2.7 -2.7 n/a   25.0 kts
20170805T224501 ssmis16_85 155.4 72.8 1.4% 2.2 -2.2 n/a   25.0 kts
20170806T020016 ssmis18_85 188.7 89.5 0.0% 3.3 -3.3 n/a   25.0 kts
20170806T090700 amsr2_85 321.9 156.2 NaN% NaN NaN n/a   23.7 kts
20170806T103514 ssmi15_85 77.7 33.9 0.0% 2.3 -2.3 n/a   23.1 kts
20170806T111725 ssmis16_85 310.8 150.7 NaN% NaN NaN n/a   22.8 kts
20170806T141710 ssmis17_85 99.9 45.0 0.0% 4.8 -4.8 n/a   21.5 kts
20170806T143248 ssmis18_85 166.5 78.4 0.0% 7.2 -7.2 n/a   21.4 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).