Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20150913T211757 ssmis16 201.2 11.0% 2.4 -2.4 n/a   35.0 kts
20150913T225646 ssmis17 167.9 NaN% NaN NaN n/a   35.0 kts
20150913T230030 ssmis19 301.3 11.9% 3.7 -3.7 n/a   35.0 kts
20150914T071057 ssmi15 323.5 NaN% NaN NaN n/a   35.0 kts
20150914T082934 ssmis16 301.3 12.1% 10.6 -10.6 n/a   35.0 kts
20150914T121534 ssmis18 56.7 20.6% 0.0 -0.0 n/a   35.0 kts
20150914T194441 ssmi15 245.7 NaN% NaN NaN n/a   33.1 kts
20150914T210500 ssmis16 323.5 NaN% NaN NaN n/a   32.1 kts
20150914T224342 ssmis17 323.5 NaN% NaN NaN n/a   30.9 kts
20150915T005124 ssmis18 323.5 NaN% NaN NaN n/a   29.4 kts
20150915T113923 ssmis19 323.5 NaN% NaN NaN n/a   20.3 kts
20150915T120307 ssmis18 323.5 NaN% NaN NaN 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).