Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20190509T163504 amsr2_85 222.0 2.5 9.6% 0.0 -0.0 n/a   43.8 kts
20190509T181140 gmi_85 11.1 45.0 15.1% 0.0 -0.0 n/a   45.0 kts
20190509T210930 ssmis18_85 33.3 6.1 71.2% 12.0 -12.0 n/a   45.0 kts
20190509T215550 ssmis17_85 33.3 11.7 54.8% 4.3 -4.3 n/a   45.0 kts
20190510T045126 amsr2_85 310.8 139.5 NaN% NaN NaN n/a   36.9 kts
20190510T054139 gmi_85 133.2 150.7 NaN% NaN NaN n/a   35.5 kts
20190510T070406 ssmis16_85 321.9 156.2 NaN% NaN NaN n/a   35.0 kts
20190510T103440 ssmis17_85 77.7 28.4 27.4% 1.7 -1.7 n/a   35.0 kts
20190510T171802 amsr2_85 77.7 33.9 13.7% 2.3 -2.3 n/a   35.0 kts
20190510T205648 ssmis18_85 255.3 122.9 NaN% NaN NaN n/a   35.0 kts
20190510T214241 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   34.6 kts
20190511T053441 amsr2_85 222.0 106.2 NaN% NaN NaN n/a   30.2 kts
20190511T093627 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20190511T102121 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 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).