Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20191203T091142 amsr2_85 99.9 161.8 NaN% NaN NaN n/a   35.0 kts
20191203T132926 ssmis17_85 33.3 11.7 87.7% 16.1 -31.1 n/a   35.0 kts
20191203T212549 amsr2_85 44.4 22.8 100.0% 26.9 -41.9 n/a   40.7 kts
20191203T234216 ssmis16_85 22.2 72.8 16.7% 2.1 -2.1 n/a   44.5 kts
20191204T004336 ssmis18_85 22.2 11.7 0.0% 1.8 -1.8 n/a   45.0 kts
20191204T020525 ssmis17_85 77.7 33.9 16.4% 7.7 -7.7 n/a   45.0 kts
20191204T083139 gmi_85 233.1 111.7 12.7% 7.8 -7.8 n/a   40.8 kts
20191204T105333 ssmis16_85 99.9 39.5 0.0% 7.1 -7.1 n/a   36.8 kts
20191204T115501 ssmis18_85 88.8 39.5 0.0% 9.4 -9.4 n/a   35.1 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).