Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20181118T121234 ssmis18_85 144.3 67.3 23.3% 0.0 -0.0 n/a   50.0 kts
20181118T192844 amsr2_85 22.2 6.1 98.6% 6.6 -21.6 n/a   51.2 kts
20181118T221107 ssmis16_85 66.6 28.4 60.3% 12.0 -12.0 n/a   53.5 kts
20181118T233640 gmi_85 33.3 11.7 74.0% 0.0 -0.0 n/a   54.7 kts
20181119T005248 ssmis17_85 33.3 11.7 69.9% 2.3 2.3 n/a   55.0 kts
20181119T104721 ssmis16_85 44.4 161.8 NaN% NaN NaN n/a   51.0 kts
20181119T110639 gmi_85 22.2 6.1 12.3% 0.9 -0.9 n/a   50.7 kts
20181119T115937 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   50.0 kts
20181119T132836 ssmis17_85 288.6 139.5 NaN% NaN NaN n/a   48.8 kts
20181119T201213 amsr2_85 266.4 2.5 0.0% 1.6 -1.6 n/a   43.2 kts
20181119T215845 ssmis16_85 244.2 161.8 NaN% NaN NaN n/a   41.7 kts
20181120T004005 ssmis17_85 255.3 161.8 NaN% NaN NaN n/a   39.4 kts
20181120T082532 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20181120T131522 ssmis17_85 188.7 89.5 0.0% 3.3 -3.3 n/a   32.6 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).