Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20190119T230154 amsr2_85 111.0 50.6 42.5% 2.3 -2.3 n/a   40.0 kts
20190120T013640 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   40.0 kts
20190120T035957 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   40.0 kts
20190120T111051 amsr2_85 88.8 61.7 0.0% 3.8 -3.8 n/a   40.0 kts
20190120T163123 ssmis17_85 277.5 89.5 NaN% NaN NaN n/a   43.8 kts
20190121T012244 ssmis16_85 188.7 89.5 0.0% 12.3 -12.3 n/a   35.0 kts
20190121T034542 ssmis17_85 210.9 100.6 1.4% 1.5 -1.5 n/a   35.0 kts
20190121T135544 ssmis16_85 321.9 161.8 NaN% NaN NaN n/a   35.0 kts
20190121T154307 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20190121T161841 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20190121T224826 amsr2_85 199.8 95.1 6.0% 3.2 -3.2 n/a   34.0 kts
20190122T025619 ssmis18_85 177.6 83.9 NaN% NaN NaN n/a   31.7 kts
20190122T033207 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   31.4 kts
20190122T080140 gmi_85 333.0 161.8 NaN% NaN NaN n/a   29.2 kts
20190122T110001 amsr2_85 188.7 89.5 0.0% 1.6 -1.6 n/a   27.9 kts
20190122T134302 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   26.8 kts
20190122T160554 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   25.8 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).