Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20200221T162601 ssmis18_85 33.3 11.7 82.2% 17.6 -17.6 n/a   30.0 kts
20200221T182617 ssmis17_85 33.3 11.7 100.0% 30.4 -45.4 n/a   31.1 kts
20200222T013332 amsr2_85 22.2 6.1 37.0% 9.5 -9.5 n/a   47.6 kts
20200222T032618 ssmis16_85 22.2 6.1 57.5% 0.0 -0.0 n/a   50.7 kts
20200222T050259 ssmis18_85 88.8 39.5 15.1% 6.7 -6.7 n/a   53.4 kts
20200222T122419 amsr2_85 111.0 50.6 NaN% NaN NaN n/a   45.0 kts
20200222T132139 gmi_85 22.2 106.2 NaN% NaN NaN n/a   45.0 kts
20200222T161350 ssmis18_85 255.3 117.3 NaN% NaN NaN n/a   45.0 kts
20200222T181341 ssmis17_85 99.9 39.5 1.4% 1.4 -1.4 n/a   44.8 kts
20200223T031219 ssmis16_85 133.2 61.7 8.2% 3.8 -3.8 n/a   40.0 kts
20200223T044925 ssmis18_85 222.0 106.2 NaN% NaN NaN n/a   40.0 kts
20200223T122640 gmi_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20200223T160218 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   24.4 kts
20200223T180057 ssmis17_85 255.3 122.9 NaN% NaN NaN n/a   23.3 kts
20200224T011940 amsr2_85 266.4 128.4 0.0% 7.6 -7.6 n/a   20.0 kts
20200224T014638 gmi_85 22.2 6.1 0.0% 4.7 -4.7 n/a   20.0 kts
20200224T043601 ssmis18_85 22.2 6.1 0.0% 1.5 -1.5 n/a   20.0 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).