Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20201213T123001 amsr2_85 111.0 50.6 11.0% 5.5 -5.5 n/a   35.0 kts
20201213T163003 ssmis18_85 310.8 45.0 1.4% 5.2 -5.2 n/a   35.0 kts
20201213T181133 ssmis17_85 155.4 50.6 0.0% 1.1 -1.1 n/a   35.2 kts
20201214T064542 ssmis17_85 166.5 78.4 37.0% 2.4 -2.4 n/a   45.0 kts
20201214T161049 ssmis16_85 144.3 67.3 NaN% NaN NaN n/a   45.0 kts
20201214T161742 ssmis18_85 144.3 72.8 NaN% NaN NaN n/a   45.0 kts
20201214T175827 ssmis17_85 266.4 39.5 63.0% 0.0 -0.0 n/a   45.0 kts
20201215T012442 amsr2_85 11.1 2.5 82.2% 4.7 -4.7 n/a   48.8 kts
20201215T045127 ssmis18_85 33.3 17.2 65.8% 3.2 -3.2 n/a   46.0 kts
20201215T063158 ssmis17_85 66.6 28.4 89.0% 16.6 -31.6 n/a   45.4 kts
20201215T155804 ssmis16_85 166.5 78.4 100.0% 26.3 -41.3 n/a   53.3 kts
20201215T160511 ssmis18_85 177.6 83.9 100.0% 24.6 -39.6 n/a   53.4 kts
20201215T174522 ssmis17_85 66.6 28.4 31.5% 14.1 -14.1 n/a   54.8 kts
20201216T043751 ssmis18_85 166.5 78.4 NaN% NaN NaN n/a   55.0 kts
20201216T061730 ssmis17_85 199.8 67.3 NaN% NaN NaN n/a   55.0 kts
20201216T130229 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   55.0 kts
20201216T155347 ssmis18_85 299.7 145.1 NaN% NaN NaN n/a   55.0 kts
20201216T173319 ssmis17_85 133.2 61.7 NaN% NaN NaN n/a   55.0 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).