Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20120125T125520 ssmis18 78.9 84.9% 5.0 -5.0 n/a   36.2 kts
20120125T221931 ssmis16 34.5 78.1% 0.0 -0.0 n/a   44.7 kts
20120125T222743 ssmis17 34.5 60.3% 0.0 -0.0 n/a   44.8 kts
20120126T003644 ssmis18 23.4 100.0% 15.3 -30.3 n/a   45.0 kts
20120126T105426 ssmis16 34.5 75.3% 13.0 -13.0 n/a   45.0 kts
20120126T110246 ssmis17 23.4 72.6% 15.7 -15.7 n/a   45.0 kts
20120126T131148 ssmis18 34.5 74.0% 0.0 -0.0 n/a   45.0 kts
20120126T220657 ssmis16 12.2 48.0% 1.1 -1.1 n/a   48.8 kts
20120126T221504 ssmis17 12.2 42.5% 0.0 -0.0 n/a   49.0 kts
20120127T002449 ssmis18 23.4 57.5% 0.0 -0.0 n/a   50.0 kts
20120127T104108 ssmis16 34.5 84.9% 0.0 -0.0 n/a   54.4 kts
20120127T104555 ssmis17 NaN 75.3% 0.0 -920.0 n/a   54.5 kts
20120127T125901 ssmis18 NaN 13.7% 4.4 -920.0 n/a   55.0 kts
20120127T215447 ssmis16 12.2 NaN% NaN NaN n/a   55.0 kts
20120127T220214 ssmis17 134.5 24.7% 4.1 4.1 n/a   55.0 kts
20120128T001316 ssmis18 12.2 86.3% 7.1 22.1 >65 kts   55.0 kts
20120128T094651 ssmis16 34.5 98.6% 19.8 34.8 >65 kts   58.5 kts
20120128T103558 ssmis17 90.1 84.9% 15.6 15.6 n/a   59.3 kts
20120128T121747 ssmis18 167.9 16.4% 2.8 2.8 n/a   60.0 kts
20120128T213352 ssmis17 34.5 63.0% 0.0 0.0 n/a   63.2 kts
20120129T000127 ssmis18 90.1 39.7% 2.9 2.9 n/a   65.0 kts
20120129T102309 ssmis17 56.7 56.2% 7.3 7.3 n/a   65.0 kts
20120129T123430 ssmis18 201.2 26.0% 3.3 3.3 n/a   64.6 kts
20120129T213732 ssmis17 179.0 21.9% 5.8 -5.8 n/a   53.3 kts
20120130T095421 ssmis17 134.5 45.2% 16.7 16.7 n/a   47.8 kts
20120130T224607 ssmis16 78.9 1.4% 5.1 5.1 n/a   46.1 kts
20120131T112959 ssmis16 123.4 49.3% 9.7 -9.7 n/a   49.7 kts
20120131T224640 ssmis16 123.4 50.7% 10.5 -10.5 n/a   64.6 kts
20120201T010754 ssmis18 134.5 21.9% 4.1 -4.1 n/a   64.9 kts
20120201T111553 ssmis16 90.1 11.0% 6.0 6.0 n/a   60.3 kts
20120201T133711 ssmis18 45.6 26.0% 6.6 6.6 n/a   59.4 kts
20120202T005641 ssmis18 101.2 0.0% 0.0 0.0 n/a   54.0 kts
20120202T105915 ssmis16 212.4 0.0% 2.3 -2.3 n/a   30.4 kts
20120202T132438 ssmis18 190.1 0.0% 1.3 -1.3 n/a   30.0 kts
20120202T222207 ssmis16 12.2 0.0% 1.2 -1.2 n/a   26.5 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.