Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20150731T145836 ssmi15 179.0 2.7% 2.3 -2.3 n/a   35.0 kts
20150801T033410 ssmi15 179.0 NaN% NaN NaN n/a   35.0 kts
20150801T042709 ssmis16 179.0 0.0% 2.0 -2.0 n/a   35.0 kts
20150801T061125 ssmis17 212.4 NaN% NaN NaN n/a   35.0 kts
20150801T074132 ssmis18 212.4 0.0% 2.0 -2.0 n/a   35.0 kts
20150801T144234 ssmi15 12.2 15.1% 0.0 -0.0 n/a   35.0 kts
20150801T185832 ssmis19 67.8 58.9% 0.0 -0.0 n/a   35.0 kts
20150801T191131 ssmis19 67.8 67.1% 1.9 -1.9 n/a   35.0 kts
20150802T031827 ssmi15 212.4 NaN% NaN NaN n/a   35.0 kts
20150802T072920 ssmis18 190.1 NaN% NaN NaN n/a   35.0 kts
20150802T170447 ssmis16 12.2 67.1% 0.0 -0.0 n/a   35.0 kts
20150802T184852 ssmis17 212.4 0.0% 3.5 -3.5 n/a   35.0 kts
20150802T185749 ssmis19 212.4 0.0% 4.3 -4.3 n/a   35.0 kts
20150803T030248 ssmi15 12.2 0.0% 0.1 -0.1 n/a   35.0 kts
20150803T072419 ssmis19 212.4 NaN% NaN NaN n/a   34.8 kts
20150803T163740 ssmis16 201.2 1.5% 1.8 -1.8 n/a   30.2 kts
20150803T182516 ssmis19 201.2 0.0% 3.2 -3.2 n/a   30.0 kts
20150803T183445 ssmis19 201.2 0.0% 2.9 -2.9 n/a   30.0 kts
20150803T183522 ssmis17 90.1 0.0% 0.5 -0.5 n/a   30.0 kts
20150803T200730 ssmis18 190.1 0.0% 1.0 -1.0 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).