Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120906T230409 tmi 5.0 0.0% 5.6 -5.6 n/a   25.0 kts
20120908T225122 tmi 5.0 0.0% 4.9 -4.9 n/a   25.0 kts
20120909T215617 tmi 12.2 39.7% 0.0 -0.0 n/a   25.0 kts
20120910T203321 ssmis17 134.5 NaN% NaN NaN n/a   27.1 kts
20120910T203901 ssmis16 134.5 NaN% NaN NaN n/a   27.2 kts
20120910T234217 ssmis18 NaN 38.4% 1.1 -920.0 n/a   29.8 kts
20120911T062921 ssmi15 56.7 72.6% 14.2 -14.2 n/a   35.4 kts
20120911T105127 ssmis18 312.4 NaN% NaN NaN n/a   39.0 kts
20120911T190542 ssmi15 112.3 48.0% 20.4 -20.4 n/a   46.4 kts
20120911T214326 tmi 90.1 27.4% 6.8 -6.8 n/a   50.9 kts
20120911T232854 ssmis18 56.7 42.5% 10.9 -10.9 n/a   54.1 kts
20120912T073417 tmi 45.6 100.0% 25.6 40.6 >65 kts   66.5 kts
20120912T090650 ssmis16 34.5 100.0% 27.1 42.1 >65 kts   67.8 kts
20120912T091055 ssmis17 34.5 100.0% 25.2 40.2 >65 kts   67.8 kts
20120912T184934 ssmi15 34.5 100.0% 42.2 57.2 >65 kts   76.2 kts
20120912T222537 tmi 34.5 NaN% NaN NaN n/a   85.2 kts
20120912T231630 ssmis18 23.4 100.0% 41.0 56.0 >65 kts   87.7 kts
20120913T063717 tmi 23.4 100.0% 54.5 69.5 >85 kts# 117.3 kts
20120913T082726 ssmis17 23.4 100.0% 59.6 74.6 >85 kts# 123.8 kts
20120913T090436 ssmis16 23.4 100.0% 59.1 74.1 >85 kts# 125.9 kts
20120913T213035 tmi 23.4 100.0% 58.3 73.3 >85 kts# 150.0 kts
20120913T213326 ssmis17 12.2 100.0% 50.3 65.3 >85 kts# 150.0 kts
20120913T213918 ssmis16 23.4 100.0% 63.7 78.7 >85 kts# 150.0 kts
20120914T054214 tmi 23.4 100.0% 43.6 58.6 >65 kts   150.0 kts
20120914T084521 ssmis17 12.2 100.0% 23.0 38.0 >65 kts   144.8 kts
20120914T085236 ssmis16 12.2 100.0% 30.1 45.1 >65 kts   144.4 kts
20120914T211918 ssmis17 67.8 100.0% 35.3 50.3 >65 kts   115.0 kts
20120914T212510 ssmis16 67.8 100.0% 33.2 48.2 >65 kts   114.7 kts
20120914T221320 tmi 67.8 53.4% 18.8 18.8 n/a   112.4 kts
20120915T044604 tmi 56.7 100.0% 43.7 58.7 >65 kts   110.0 kts
20120915T081626 ssmis17 45.6 100.0% 58.2 73.2 >85 kts# 110.0 kts
20120915T084132 ssmis16 45.6 100.0% 58.5 73.5 >85 kts# 110.0 kts
20120915T111200 ssmis18 45.6 100.0% 48.9 63.9 >85 kts# 110.0 kts
20120915T194023 ssmi15 45.6 100.0% 37.1 52.1 >65 kts   102.1 kts
20120915T210139 ssmis17 56.7 64.4% 25.6 25.6 >65 kts   99.1 kts
20120915T211124 ssmis16 45.6 100.0% 27.9 42.9 >65 kts   98.7 kts
20120915T225601 tmi 45.6 NaN% NaN NaN n/a   95.7 kts
20120916T000334 ssmis18 45.6 100.0% 36.4 51.4 >65 kts   95.0 kts
20120916T034958 tmi 56.7 31.5% 15.2 15.2 n/a   95.0 kts
20120916T065724 ssmi15 45.6 54.8% 10.0 10.0 n/a   94.8 kts
20120916T074159 ssmis17 34.5 60.3% 15.4 15.4 n/a   94.3 kts
20120916T082858 ssmis16 34.5 53.4% 11.9 11.9 n/a   93.6 kts
20120916T112421 ssmis18 123.4 45.2% 12.5 12.5 n/a   90.5 kts
20120916T192228 ssmi15 45.6 21.9% 0.5 0.5 n/a   84.0 kts
20120916T204351 ssmis16 134.5 NaN% NaN NaN n/a   83.1 kts
20120916T233919 tmi 67.8 13.7% 0.3 0.3 n/a   80.5 kts
20120916T235716 ssmis18 134.5 NaN% NaN NaN n/a   80.1 kts
20120917T064356 ssmi15 234.6 2.7% 3.1 -3.1 n/a   45.0 kts
20120917T073305 ssmis17 301.3 0.0% 3.6 -3.6 n/a   45.0 kts
20120917T081740 ssmis16 267.9 NaN% NaN NaN n/a   45.0 kts
20120917T111233 ssmis18 312.4 NaN% NaN NaN n/a   43.2 kts
20120917T190342 ssmi15 67.8 NaN% NaN NaN n/a   28.8 kts
20120917T190534 ssmi15 123.4 0.0% 10.1 -10.1 n/a   28.8 kts
20120917T221229 ssmis17 323.5 NaN% NaN NaN n/a   25.5 kts
20120917T234901 ssmis18 34.5 0.0% 0.3 -0.3 n/a   24.0 kts
20120918T063044 ssmi15 78.9 0.0% 0.8 -0.8 n/a   20.0 kts
20120918T075301 ssmis16 5.0 0.0% 0.9 -0.9 n/a   20.0 kts
20120918T080240 ssmis17 12.2 0.0% 0.8 -0.8 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).