Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20151001T060049 ssmi15 123.4 23.3% 5.8 -5.8 n/a   30.0 kts
20151001T080818 ssmis16 90.1 63.0% 2.3 -2.3 n/a   32.2 kts
20151001T094452 ssmis17 67.8 56.2% 0.4 -0.4 n/a   33.9 kts
20151001T094608 ssmis19 78.9 61.6% 4.2 -4.2 n/a   33.9 kts
20151001T183506 ssmi15 34.5 100.0% 18.1 -33.1 n/a   30.0 kts
20151001T204347 ssmis16 90.1 26.0% 0.7 -0.7 n/a   30.0 kts
20151001T222008 ssmis17 78.9 34.2% 1.1 -1.1 n/a   30.0 kts
20151001T222132 ssmis19 167.9 NaN% NaN NaN n/a   30.0 kts
20151001T230119 ssmis18 156.8 NaN% NaN NaN n/a   30.0 kts
20151002T073141 ssmis16 145.7 67.1% 8.8 -8.8 n/a   37.1 kts
20151002T203020 ssmis16 134.5 27.4% 9.3 9.3 n/a   55.0 kts
20151003T071127 ssmi15 45.6 24.7% 17.5 17.5 n/a   60.9 kts
20151003T101506 ssmis19 45.6 100.0% 21.1 36.1 >65 kts   63.2 kts
20151003T110734 ssmis18 34.5 100.0% 31.2 46.2 >65 kts   64.0 kts
20151003T194306 ssmi15 23.4 100.0% 30.8 45.8 >65 kts   84.2 kts
20151003T194307 ssmi15 23.4 100.0% 30.9 45.9 >65 kts   84.2 kts
20151003T233447 ssmis19 23.4 100.0% 33.8 48.8 >65 kts   93.8 kts
20151004T001631 ssmis18 23.4 100.0% 47.5 62.5 >85 kts# 95.8 kts
20151004T065618 ssmi15 23.4 100.0% 45.1 60.1 >85 kts# 112.7 kts
20151004T091235 ssmis16 145.7 52.0% 10.5 10.5 n/a   95.7 kts
20151004T104220 ssmis17 190.1 0.0% 4.4 4.4 n/a   84.2 kts
20151004T104934 ssmis19 190.1 0.0% 4.5 4.5 n/a   83.5 kts
20151004T113148 ssmis18 23.4 12.3% 4.1 4.1 n/a   80.6 kts
20151004T192631 ssmi15 323.5 NaN% NaN NaN n/a   68.5 kts
20151004T192636 ssmi15 323.5 NaN% NaN NaN n/a   68.5 kts
20151004T214408 ssmis16 267.9 NaN% NaN NaN n/a   58.4 kts
20151004T232003 ssmis17 156.8 0.0% 1.8 -1.8 n/a   52.1 kts
20151004T232103 ssmis19 145.7 0.0% 1.1 -1.1 n/a   52.1 kts
20151005T000348 ssmis18 112.3 0.0% 0.6 -0.6 n/a   49.8 kts
20151005T082545 ssmis16 67.8 0.0% 1.0 -1.0 n/a   27.8 kts
20151005T101655 ssmis17 12.2 0.0% 1.2 -1.2 n/a   23.6 kts
20151005T103041 ssmis19 245.7 NaN% NaN NaN n/a   23.1 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).