Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20150728T204229 ssmi15_85 101.2 8.4% 3.3 -3.3 n/a   35.0 kts
20150729T075548 ssmi15_85 323.5 NaN% NaN NaN n/a   35.0 kts
20150729T151641 gmi_85 312.4 NaN% NaN NaN n/a   37.7 kts
20150729T202608 ssmi15_85 223.5 NaN% NaN NaN n/a   40.0 kts
20150730T043640 gmi_85 323.5 NaN% NaN NaN n/a   36.2 kts
20150730T070523 amsr2_85 201.2 NaN% NaN NaN n/a   35.0 kts
20150730T115339 ssmis17_85 323.5 NaN% NaN NaN n/a   33.4 kts
20150730T120318 ssmis19_85 323.5 NaN% NaN NaN n/a   33.3 kts
20150730T132213 ssmis18_85 323.5 NaN% NaN NaN n/a   32.6 kts
20150730T191430 amsr2_85 90.1 NaN% NaN NaN n/a   30.0 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).