Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120805T042406 ssmi15 234.6 2.7% 0.7 -0.7 n/a   28.9 kts
20120805T164542 tmi 256.8 28.8% 3.2 -3.2 n/a   34.9 kts
20120805T165302 ssmi15 179.0 39.7% 7.5 -7.5 n/a   35.0 kts
20120805T194436 ssmis17 -919.0 -999.0% -999.0 -909.0 n/a   35.0 kts
20120806T062140 ssmis17 134.5 8.2% 4.1 -4.1 n/a   45.0 kts
20120806T070542 ssmis16 123.4 0.0% 4.6 -4.6 n/a   45.0 kts
20120806T155005 tmi 56.7 6.1% 2.2 -2.2 n/a   45.0 kts
20120806T172808 tmi 123.4 NaN% NaN NaN n/a   45.0 kts
20120806T193041 ssmis17 12.2 0.0% 2.6 -2.6 n/a   45.0 kts
20120806T193414 ssmis16 23.4 0.0% 4.2 -4.2 n/a   45.0 kts
20120806T204354 tmi 23.4 0.0% 3.9 -3.9 n/a   45.0 kts
20120806T221533 ssmis18 23.4 0.0% 2.1 -2.1 n/a   45.0 kts
20120807T061125 ssmis17 34.5 0.0% 1.0 -1.0 n/a   45.0 kts
20120807T093527 ssmis18 190.1 12.3% 3.0 -3.0 n/a   38.5 kts
20120807T163149 tmi 101.2 6.8% 0.0 -0.0 n/a   39.2 kts
20120807T180939 tmi 34.5 NaN% NaN NaN n/a   40.0 kts
20120807T191533 ssmis17 323.5 NaN% NaN NaN n/a   40.0 kts
20120807T192104 ssmis16 145.7 8.2% 0.7 -0.7 n/a   40.0 kts
20120807T194729 tmi 312.4 NaN% NaN NaN n/a   40.0 kts
20120807T212525 tmi 112.3 34.2% 2.9 -2.9 n/a   40.0 kts
20120807T215038 ssmis18 145.7 41.1% 3.3 -3.3 n/a   40.0 kts
20120808T052039 ssmi15 179.0 NaN% NaN NaN n/a   40.0 kts
20120808T060133 ssmis17 134.5 0.0% 2.4 -2.4 n/a   40.0 kts
20120808T060520 ssmis16 290.2 NaN% NaN NaN n/a   40.0 kts
20120808T083209 ssmis18 190.1 13.7% 2.3 -2.3 n/a   38.1 kts
20120808T171335 tmi 134.5 5.5% 3.2 -3.2 n/a   35.0 kts
20120808T174505 ssmi15 56.7 0.0% 1.5 -1.5 n/a   35.0 kts
20120808T185119 tmi 223.5 NaN% NaN NaN n/a   34.7 kts
20120808T202856 tmi 179.0 9.6% 3.5 -3.5 n/a   33.1 kts
20120808T214959 ssmis18 267.9 NaN% NaN NaN n/a   31.5 kts
20120809T050604 ssmi15 78.9 12.3% 3.1 -3.1 n/a   34.7 kts
20120809T091312 ssmis18 56.7 13.7% 2.6 -2.6 n/a   35.0 kts
20120809T203028 ssmis17 190.1 NaN% NaN NaN n/a   40.0 kts
20120809T203407 ssmis16 190.1 26.6% 7.1 -7.1 n/a   40.0 kts
20120809T231713 ssmis18 67.8 6.8% 0.0 -0.0 n/a   40.0 kts
20120810T045238 ssmi15 112.3 NaN% NaN NaN n/a   40.0 kts
20120810T073354 ssmis17 78.9 NaN% NaN NaN n/a   40.0 kts
20120810T080109 ssmis16 45.6 NaN% NaN NaN n/a   40.0 kts
20120810T090317 ssmis18 256.8 NaN% NaN NaN n/a   40.0 kts
20120810T185057 ssmi15 134.5 NaN% NaN NaN n/a   40.0 kts
20120810T185201 ssmi15 134.5 NaN% NaN NaN n/a   40.0 kts
20120810T201534 ssmis17 34.5 0.0% 0.7 -0.7 n/a   40.0 kts
20120810T201919 ssmis16 34.5 0.0% 0.3 -0.3 n/a   40.0 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.