Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121112T150228 tmi 167.9 0.0% 1.1 -1.1 n/a   25.0 kts
20121112T194739 ssmi15 167.9 NaN% NaN NaN n/a   25.0 kts
20121112T221423 ssmis17 223.5 0.0% 1.3 -1.3 n/a   25.0 kts
20121112T222416 ssmis16 12.2 NaN% NaN NaN n/a   25.0 kts
20121113T002605 ssmis18 34.5 0.0% 1.1 -1.1 n/a   25.0 kts
20121113T085105 ssmis16 12.2 0.0% 2.4 -2.4 n/a   25.0 kts
20121113T215924 ssmis16 301.3 NaN% NaN NaN n/a   25.0 kts
20121113T220122 ssmis17 56.7 15.1% 0.2 -0.2 n/a   25.0 kts
20121114T013322 tmi 5.0 2.7% 3.2 -3.2 n/a   25.0 kts
20121114T081852 ssmi15 156.8 15.1% 2.2 -2.2 n/a   25.0 kts
20121114T103856 ssmis17 45.6 0.0% 2.2 -2.2 n/a   25.0 kts
20121114T130236 ssmis18 323.5 NaN% NaN NaN n/a   25.0 kts
20121114T144511 tmi 12.2 0.0% 4.2 -4.2 n/a   25.0 kts
20121114T205631 ssmi15 190.1 NaN% NaN NaN n/a   25.0 kts
20121115T102648 ssmis17 234.6 NaN% NaN NaN n/a   20.0 kts
20121115T104718 ssmis16 256.8 0.0% 2.0 -2.0 n/a   20.0 kts
20121115T121124 ssmis18 56.7 0.0% 3.4 -3.4 n/a   20.0 kts
20121115T204057 ssmi15 45.6 0.0% 4.0 -4.0 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).