Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20170107T221057 ssmis17 323.5 NaN% NaN NaN n/a   25.0 kts
20170108T073342 ssmis16 12.2 82.2% 0.2 -0.2 n/a   25.8 kts
20170108T093641 ssmis17 134.5 28.8% 2.8 -2.8 n/a   28.3 kts
20170108T101241 ssmis18 45.6 37.0% 1.4 -1.4 n/a   28.9 kts
20170108T201219 ssmis16 212.4 NaN% NaN NaN n/a   28.9 kts
20170108T221448 ssmis17 45.6 0.0% 2.5 -2.5 n/a   26.8 kts
20170108T223144 ssmis18 45.6 0.0% 3.8 -3.8 n/a   26.5 kts
20170109T062939 ssmis16 12.2 39.7% 0.5 -0.5 n/a   20.0 kts
20170109T063224 ssmi15 145.7 1.4% 1.1 -1.1 n/a   20.0 kts
20170109T094136 ssmis18 34.5 4.1% 0.0 -0.0 n/a   20.0 kts
20170109T195911 ssmis16 323.5 NaN% NaN NaN n/a   20.3 kts
20170109T215934 ssmis17 12.2 0.0% 0.3 -0.3 n/a   20.4 kts
20170109T223919 ssmis18 145.7 NaN% NaN NaN n/a   20.4 kts
20170110T061626 ssmi15 67.8 2.7% 2.5 -2.5 n/a   20.8 kts
20170110T105125 ssmis17 234.6 NaN% NaN NaN n/a   21.1 kts
20170115T103438 ssmis17 78.9 49.3% 3.2 -3.2 n/a   30.0 kts
20170115T191455 ssmi15 167.9 0.0% 5.8 -5.8 n/a   25.0 kts
20170115T201700 ssmis16 123.4 0.0% 3.5 -3.5 n/a   25.0 kts
20170116T091137 ssmis16 67.8 0.0% 1.8 -1.8 n/a   21.8 kts
20170116T111242 ssmis17 290.2 NaN% NaN NaN n/a   20.4 kts
20170116T115414 ssmis18 267.9 NaN% NaN NaN n/a   20.0 kts
20170116T235142 ssmis17 212.4 NaN% NaN NaN n/a   15.0 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).