Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120720T212829 ssmis16 323.5 NaN% NaN NaN n/a   25.0 kts
20120720T213213 ssmis17 323.5 NaN% NaN NaN n/a   25.0 kts
20120720T235259 ssmis18 56.7 0.0% 2.7 -2.7 n/a   25.0 kts
20120721T023207 tmi 245.7 NaN% NaN NaN n/a   25.0 kts
20120721T023209 tmi 12.2 16.4% 2.8 -2.8 n/a   25.0 kts
20120721T104254 tmi 179.0 31.5% 5.6 -5.6 n/a   28.4 kts
20120721T104301 tmi 179.0 34.2% 5.2 -5.2 n/a   28.4 kts
20120722T080302 ssmi15 45.6 42.5% 0.0 -0.0 n/a   45.0 kts
20120722T092829 ssmis16 190.1 17.8% 4.8 -4.8 n/a   45.0 kts
20120722T094714 tmi 12.2 50.7% 5.1 -5.1 n/a   45.0 kts
20120722T094715 tmi 12.2 30.1% 3.8 -3.8 n/a   45.0 kts
20120722T101415 ssmis17 190.1 17.8% 5.0 -5.0 n/a   45.0 kts
20120722T124816 ssmis18 323.5 NaN% NaN NaN n/a   45.2 kts
20120722T203643 ssmi15 123.4 31.5% 1.2 -1.2 n/a   52.0 kts
20120722T224735 ssmis17 90.1 NaN% NaN NaN n/a   53.8 kts
20120722T225007 ssmis16 23.4 0.0% 1.2 -1.2 n/a   53.8 kts
20120723T021817 tmi 78.9 NaN% NaN NaN n/a   58.7 kts
20120723T021818 tmi 78.9 NaN% NaN NaN n/a   58.7 kts
20120723T074852 ssmi15 23.4 100.0% 27.8 42.8 >65 kts   67.1 kts
20120723T085118 tmi 78.9 NaN% NaN NaN n/a   68.2 kts
20120723T093352 ssmis17 45.6 97.3% 19.4 34.5 >65 kts   68.8 kts
20120723T100421 ssmis16 34.5 93.2% 17.0 32.0 >65 kts   69.3 kts
20120723T123533 ssmis18 45.6 100.0% 37.9 52.9 >65 kts   70.0 kts
20120723T201852 ssmi15 34.5 100.0% 37.1 52.1 >65 kts   67.8 kts
20120723T222920 ssmis16 12.2 100.0% 24.5 39.5 >65 kts   66.2 kts
20120723T223400 ssmis17 12.2 100.0% 22.5 37.5 >65 kts   66.1 kts
20120724T010906 ssmis18 267.9 5.9% 2.0 2.0 n/a   64.0 kts
20120724T012228 tmi 34.5 24.7% 0.5 0.5 n/a   63.8 kts
20120724T094940 ssmis17 78.9 0.0% 4.9 -4.9 n/a   52.9 kts
20120724T095212 ssmis16 90.1 4.1% 4.0 -4.0 n/a   52.8 kts
20120724T120221 ssmis18 23.4 9.6% 7.7 -7.7 n/a   50.0 kts
20120724T222113 ssmis17 123.4 0.0% 3.3 -3.3 n/a   36.3 kts
20120724T222352 ssmis16 123.4 0.0% 4.2 -4.2 n/a   36.3 kts
20120725T004155 ssmis18 134.5 1.4% 7.0 -7.0 n/a   34.6 kts
20120725T020349 tmi 134.5 4.1% 4.9 -4.9 n/a   33.8 kts
20120725T083621 tmi 12.2 24.7% 17.1 -17.1 n/a   31.3 kts
20120725T212834 ssmi15 145.7 NaN% NaN NaN n/a   25.1 kts
20120726T010735 tmi 12.2 0.0% 3.1 -3.1 n/a   23.2 kts
20120726T084251 ssmi15 45.6 0.0% 0.3 -0.3 n/a   20.3 kts
20120726T102849 ssmis17 201.2 NaN% NaN NaN n/a   20.1 kts
20120726T103942 ssmis16 5.0 0.0% 0.8 -0.8 n/a   20.1 kts
20120726T211300 ssmi15 12.2 0.0% 0.0 -0.0 n/a   20.0 kts
20120726T233656 ssmis17 23.4 NaN% NaN NaN n/a   20.0 kts
20120726T233943 ssmis16 78.9 NaN% NaN NaN n/a   20.0 kts
20120727T082237 tmi 90.1 0.0% 1.5 -1.5 n/a   20.0 kts
20120727T082717 ssmi15 45.6 0.0% 1.0 -1.0 n/a   20.0 kts
20120727T101742 ssmis17 12.2 0.0% 2.0 -2.0 n/a   20.0 kts
20120727T104127 ssmis16 23.4 0.0% 0.8 -0.8 n/a   20.0 kts
20120727T133000 ssmis18 156.8 0.0% 0.9 -0.9 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.