Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20121211T175919 tmi 34.5 45.2% 13.7 -13.7 n/a   50.0 kts
20121212T152258 ssmi15 NaN NaN% NaN -920.0 n/a   58.5 kts
20121212T170430 tmi 23.4 100.0% 43.1 -58.1 n/a   62.7 kts
20121212T170436 tmi 23.4 100.0% 38.2 53.2 >65 kts   62.7 kts
20121212T173040 ssmis17 12.2 100.0% 34.4 -49.4 n/a   63.8 kts
20121213T043913 ssmis16 190.1 NaN% NaN NaN n/a   80.0 kts
20121213T075614 tmi 12.2 69.9% 3.3 3.3 n/a   81.7 kts
20121213T075615 tmi 12.2 69.9% 2.2 2.2 n/a   81.7 kts
20121213T150709 ssmi15 179.0 6.8% 6.2 6.2 n/a   96.5 kts
20121213T171916 ssmis17 12.2 100.0% 17.0 32.0 >65 kts   99.8 kts
20121213T195226 ssmis18 167.9 43.8% 0.0 0.0 n/a   100.0 kts
20121214T070018 tmi 5.0 48.0% 1.5 1.5 n/a   100.1 kts
20121214T145127 ssmi15 156.8 100.0% 34.5 49.5 >65 kts   100.3 kts
20121214T165035 tmi 34.5 56.2% 12.8 12.8 n/a   100.4 kts
20121214T165044 tmi 34.5 69.9% 14.3 14.3 n/a   100.4 kts
20121214T170609 ssmis17 112.3 100.0% 35.3 50.3 >65 kts   100.4 kts
20121214T171526 ssmis16 78.9 100.0% 32.5 47.5 >65 kts   100.5 kts
20121214T194002 ssmis18 23.4 100.0% 12.2 27.2 >65 kts   100.6 kts
20121215T032655 ssmi15 101.2 64.4% 24.0 24.0 >65 kts   101.2 kts
20121215T054313 ssmis17 45.6 100.0% 25.3 40.3 >65 kts   101.4 kts
20121215T055513 ssmis16 67.8 100.0% 30.4 45.4 >65 kts   101.4 kts
20121215T075735 ssmis18 45.6 100.0% 26.9 41.9 >65 kts   101.6 kts
20121215T155405 tmi 34.5 58.9% 0.0 0.0 n/a   102.6 kts
20121215T155424 tmi 34.5 54.8% 0.0 0.0 n/a   102.6 kts
20121215T165348 ssmis17 212.4 NaN% NaN NaN n/a   102.8 kts
20121215T170538 ssmis16 45.6 61.6% 4.4 4.4 n/a   102.8 kts
20121215T191138 ssmis18 56.7 100.0% 33.4 48.4 >65 kts   103.1 kts
20121216T064513 tmi 34.5 71.2% 15.1 15.1 n/a   105.2 kts
20121216T064525 tmi 23.4 63.0% 11.6 11.6 n/a   105.2 kts
20121216T080504 ssmis18 45.6 100.0% 32.5 47.5 >65 kts   106.1 kts
20121217T154725 ssmi15 190.1 27.4% 0.0 0.0 n/a   107.1 kts
20121217T175427 ssmis17 134.5 30.1% 5.2 5.2 n/a   105.1 kts
20121218T041853 ssmi15 212.4 NaN% NaN NaN n/a   96.9 kts
20121218T063127 tmi 90.1 76.7% 0.0 0.0 n/a   94.3 kts
20121218T064355 ssmis17 212.4 NaN% NaN NaN n/a   94.0 kts
20121218T153230 ssmi15 201.2 0.0% 2.7 2.7 n/a   70.9 kts
20121218T175844 ssmis17 201.2 5.5% 3.3 3.3 n/a   65.0 kts
20121218T203537 ssmis18 145.7 NaN% NaN NaN n/a   59.9 kts
20121219T040237 ssmi15 212.4 0.0% 4.5 4.5 n/a   47.4 kts
20121219T054829 ssmis17 212.4 0.0% 2.4 2.4 n/a   45.2 kts
20121219T151734 ssmi15 5.0 0.0% 0.0 -0.0 n/a   35.8 kts
20121219T174624 ssmis17 179.0 NaN% NaN NaN n/a   35.0 kts
20121219T202350 ssmis18 212.4 NaN% NaN NaN n/a   35.0 kts
20121220T034631 ssmi15 167.9 0.0% 5.7 -5.7 n/a   32.0 kts
20121220T052923 ssmis17 23.4 0.0% 1.1 -1.1 n/a   30.5 kts
20121220T061856 tmi 34.5 0.0% 3.2 -3.2 n/a   30.0 kts
20121220T062905 ssmis16 190.1 NaN% NaN NaN n/a   30.0 kts
20121220T085426 ssmis18 212.4 0.0% 3.8 -3.8 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).