Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120210T015342 ssmis16 12.2 65.8% 1.7 -1.7 n/a   52.1 kts
20120210T042051 ssmis18 112.3 100.0% 18.1 -33.1 n/a   54.4 kts
20120210T125603 tmi 12.2 100.0% 38.2 53.2 >65 kts   69.1 kts
20120210T135724 ssmis16 12.2 100.0% 29.6 44.6 >65 kts   77.1 kts
20120211T013821 ssmis17 101.2 100.0% 38.4 53.4 >65 kts   119.4 kts
20120211T034752 tmi 5.0 91.8% 15.4 30.4 >65 kts   117.0 kts
20120211T040914 ssmis18 101.2 100.0% 27.2 42.2 >65 kts   116.4 kts
20120211T115945 tmi 90.1 100.0% 37.4 52.4 >65 kts   105.0 kts
20120211T135233 ssmis17 134.5 100.0% 28.4 43.5 >65 kts   103.8 kts
20120211T135235 ssmis17 134.5 100.0% 31.9 47.0 >65 kts   103.8 kts
20120211T141326 ssmis16 112.3 100.0% 21.0 36.0 >65 kts   103.6 kts
20120211T163607 ssmis18 123.4 100.0% 23.1 38.1 >65 kts   102.3 kts
20120211T163609 ssmis18 101.2 100.0% 21.9 36.9 >65 kts   102.3 kts
20120212T011113 ssmis17 78.9 39.7% 2.6 2.6 n/a   100.2 kts
20120212T012917 ssmis16 112.3 NaN% NaN NaN n/a   100.3 kts
20120212T012918 ssmis16 101.2 60.6% 14.8 14.8 n/a   100.3 kts
20120212T025209 tmi 134.5 NaN% NaN NaN n/a   101.0 kts
20120212T033518 ssmis18 78.9 50.7% 5.3 5.3 n/a   101.5 kts
20120212T133334 ssmis16 90.1 100.0% 59.8 74.8 >85 kts# 114.9 kts
20120212T134505 ssmis17 90.1 100.0% 54.8 69.8 >85 kts# 115.2 kts
20120212T163224 ssmis18 78.9 100.0% 26.0 41.0 >65 kts   119.3 kts
20120212T163230 ssmis18 78.9 100.0% 25.9 40.9 >65 kts   119.3 kts
20120213T012407 ssmis17 56.7 100.0% 27.4 42.4 >65 kts   125.0 kts
20120213T033339 tmi 56.7 53.4% 18.2 18.2 n/a   125.0 kts
20120213T114455 tmi 45.6 32.9% 13.6 13.6 n/a   125.0 kts
20120213T135759 ssmis17 34.5 61.6% 12.1 12.1 n/a   123.7 kts
20120214T023100 ssmis16 212.4 31.5% 0.0 0.0 n/a   83.0 kts
20120214T104802 tmi 90.1 0.0% 0.0 0.0 n/a   36.3 kts
20120214T151859 ssmis16 5.0 31.5% 2.0 -2.0 n/a   35.7 kts
20120214T152624 ssmis17 167.9 NaN% NaN NaN n/a   35.7 kts
20120215T023333 ssmis16 190.1 11.0% 1.7 -1.7 n/a   41.1 kts
20120215T024028 ssmis17 201.2 34.2% 6.3 -6.3 n/a   41.1 kts
20120215T031815 tmi 201.2 NaN% NaN NaN n/a   41.4 kts
20120215T044004 ssmis18 190.1 15.1% 6.1 -6.1 n/a   41.9 kts
20120215T144152 ssmis17 167.9 17.8% 5.7 -5.7 n/a   46.1 kts
20120215T150518 ssmis16 167.9 21.9% 4.0 -4.0 n/a   46.3 kts
20120215T173604 ssmis18 134.5 27.4% 6.5 -6.5 n/a   47.3 kts
20120216T021727 ssmis17 67.8 43.8% 2.7 -2.7 n/a   51.1 kts
20120216T022855 ssmis17 67.8 41.1% 2.7 -2.7 n/a   51.2 kts
20120216T040048 tmi -919.0 -999.0% -999.0 -909.0 n/a   52.0 kts
20120216T045254 ssmis18 45.6 9.6% 6.2 -6.2 n/a   52.5 kts
20120216T145920 ssmis17 90.1 19.2% 9.3 9.3 n/a   55.0 kts
20120216T170733 ssmis18 156.8 37.0% 4.2 4.2 n/a   55.0 kts
20120217T015950 ssmis17 145.7 20.6% 4.4 -4.4 n/a   55.0 kts
20120217T030538 tmi 167.9 12.3% 8.8 -8.8 n/a   55.0 kts
20120217T044100 ssmis18 145.7 32.9% 8.9 -8.9 n/a   55.0 kts
20120217T093757 tmi 156.8 NaN% NaN NaN n/a   55.0 kts
20120217T144611 ssmis17 156.8 0.0% 7.2 7.2 n/a   53.6 kts
20120217T170935 ssmis18 90.1 57.5% 8.4 8.4 n/a   51.0 kts
20120218T014800 ssmis17 78.9 100.0% 23.9 -38.9 n/a   45.8 kts
20120218T021006 tmi 56.7 37.0% 25.9 -25.9 n/a   46.1 kts
20120218T041750 ssmis18 67.8 43.8% 18.5 -18.5 n/a   48.8 kts
20120218T084223 tmi 56.7 20.6% 13.2 -13.2 n/a   56.1 kts
20120218T140127 ssmis17 56.7 NaN% NaN NaN n/a   61.1 kts
20120218T163448 ssmis18 34.5 100.0% 21.1 36.1 >65 kts   62.0 kts
20120219T011523 tmi 34.5 100.0% 55.7 70.7 >85 kts# 66.3 kts
20120219T013440 ssmis17 34.5 100.0% 56.1 71.1 >85 kts# 66.7 kts
20120219T040510 ssmis18 34.5 100.0% 63.7 78.7 >85 kts# 71.6 kts
20120219T074757 tmi 23.4 91.8% 19.3 34.3 >65 kts   80.0 kts
20120219T142029 ssmis17 45.6 67.1% 8.9 8.9 n/a   83.6 kts
20120219T164640 ssmis18 23.4 100.0% 24.5 39.5 >65 kts   79.9 kts
20120220T002053 tmi 45.6 72.6% 0.0 0.0 n/a   64.4 kts
20120220T013743 ssmis17 23.4 86.3% 2.2 17.2 n/a   62.2 kts
20120220T034235 ssmis18 34.5 86.3% 0.0 15.0 n/a   58.6 kts
20120220T065515 tmi 190.1 15.1% 9.6 9.6 n/a   53.1 kts
20120220T135107 ssmis17 167.9 NaN% NaN NaN n/a   42.1 kts
20120220T162846 ssmis18 134.5 0.0% 11.2 -11.2 n/a   37.8 kts
20120220T232643 tmi 145.7 NaN% NaN NaN n/a   30.1 kts
20120221T012413 ssmis17 101.2 0.0% 0.1 -0.1 n/a   30.0 kts
20120221T131858 ssmis17 123.4 NaN% NaN NaN n/a   25.0 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.