Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20151216T055512 ssmi15_85 78.9 20.6% 1.3 -1.3 n/a   25.0 kts
20151216T093814 ssmis19_85 78.9 NaN% NaN NaN n/a   25.0 kts
20151216T094723 ssmis17_85 323.5 NaN% NaN NaN n/a   25.0 kts
20151216T095125 ssmis18_85 212.4 NaN% NaN NaN n/a   25.0 kts
20151216T191919 ssmis16_85 145.7 16.4% 2.0 -2.0 n/a   25.0 kts
20151216T221737 ssmis19_85 45.6 19.2% 0.4 -0.4 n/a   25.0 kts
20151216T223100 ssmis18_85 101.2 9.6% 3.0 -3.0 n/a   25.0 kts
20151217T054207 ssmi15_85 34.5 9.6% 2.0 -2.0 n/a   25.0 kts
20151217T092502 ssmis19_85 90.1 0.0% 3.2 -3.2 n/a   25.0 kts
20151217T093404 ssmis17_85 223.5 13.7% 6.8 -6.8 n/a   25.0 kts
20151217T181947 ssmi15_85 12.2 0.0% 2.1 -2.1 n/a   25.0 kts
20151217T220403 ssmis19_85 256.8 6.8% 3.5 -3.5 n/a   25.0 kts
20151217T220404 ssmis19_85 256.8 6.8% 3.4 -3.4 n/a   25.0 kts
20151217T221848 ssmis18_85 201.2 8.2% 2.2 -2.2 n/a   25.0 kts
20151218T044840 amsr2_85 312.4 NaN% NaN NaN n/a   24.0 kts
20151218T075431 ssmis16_85 156.8 NaN% NaN NaN n/a   22.3 kts
20151218T092042 ssmis17_85 179.0 NaN% NaN NaN n/a   21.5 kts
20151218T110744 ssmis18_85 134.5 13.4% 4.2 -4.2 n/a   20.5 kts
20151218T170622 amsr2_85 134.5 22.9% 2.5 -2.5 n/a   20.0 kts
20151218T180428 ssmi15_85 323.5 NaN% NaN NaN n/a   20.0 kts
20151218T215136 ssmis19_85 323.5 NaN% NaN NaN n/a   20.0 kts
20151218T220041 ssmis17_85 23.4 0.0% 0.0 -0.0 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).