Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20201208T205109 ssmis16_85 11.1 78.4 28.8% 3.0 -3.0 n/a   45.0 kts
20201208T205626 ssmis18_85 111.0 56.1 0.0% 2.2 -2.2 n/a   45.0 kts
20201209T092902 ssmis16_85 111.0 50.6 0.0% 2.9 -2.9 n/a   39.2 kts
20201209T093359 ssmis18_85 111.0 50.6 0.0% 3.0 -3.0 n/a   39.1 kts
20201209T111849 ssmis17_85 122.1 56.1 4.1% 2.5 -2.5 n/a   36.1 kts
20201209T175017 amsr2_85 266.4 111.7 4.1% 6.5 -6.5 n/a   35.0 kts
20201209T203846 ssmis16_85 11.1 NaN 91.8% 0.0 -920.0 n/a   35.0 kts
20201209T204420 ssmis18_85 199.8 100.6 NaN% NaN NaN n/a   35.0 kts
20201210T060410 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20201210T091455 ssmis16_85 199.8 95.1 2.7% 5.8 -5.8 n/a   35.0 kts
20201210T092014 ssmis18_85 199.8 128.4 5.6% 4.0 -4.0 n/a   35.0 kts
20201210T110424 ssmis17_85 321.9 150.7 NaN% NaN NaN n/a   35.0 kts
20201210T202641 ssmis16_85 310.8 161.8 NaN% NaN NaN n/a   37.0 kts
20201210T203239 ssmis18_85 11.1 161.8 NaN% NaN NaN n/a   37.1 kts
20201210T221620 ssmis17_85 210.9 161.8 NaN% NaN NaN n/a   38.6 kts
20201211T090001 ssmis16_85 255.3 122.9 26.0% 0.5 -0.5 n/a   35.0 kts
20201211T090537 ssmis18_85 255.3 122.9 16.4% 1.0 -1.0 n/a   34.9 kts
20201211T104850 ssmis17_85 277.5 134.0 5.5% 0.0 -0.0 n/a   33.0 kts
20201211T201533 ssmis16_85 44.4 17.2 12.3% 1.6 -1.6 n/a   25.0 kts
20201211T202125 ssmis18_85 44.4 17.2 0.0% 1.2 -1.2 n/a   25.0 kts
20201211T220422 ssmis17_85 266.4 128.4 12.1% 0.1 -0.1 n/a   25.0 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).