Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20211010T113302 ssmis18_85 133.2 61.7 12.3% 1.2 -1.2 n/a   30.0 kts
20211010T113912 ssmis16_85 111.0 61.7 30.1% 1.6 -1.6 n/a   30.0 kts
20211010T130910 ssmis17_85 44.4 106.2 NaN% NaN NaN n/a   31.9 kts
20211010T224413 ssmis18_85 66.6 33.9 NaN% NaN NaN n/a   43.9 kts
20211011T030018 gmi_85 333.0 161.8 NaN% NaN NaN n/a   45.0 kts
20211011T112006 ssmis18_85 99.9 45.0 63.0% 0.0 -0.0 n/a   53.9 kts
20211011T112603 ssmis16_85 122.1 45.0 NaN% NaN NaN n/a   54.1 kts
20211011T142518 gmi_85 177.6 78.4 54.8% 4.7 -4.7 n/a   57.0 kts
20211012T014842 ssmis17_85 111.0 50.6 16.4% 2.1 2.1 n/a   61.5 kts
20211012T133018 gmi_85 333.0 161.8 NaN% NaN NaN n/a   67.5 kts
20211012T142201 ssmis17_85 199.8 95.1 NaN% NaN NaN n/a   66.1 kts
20211012T205153 amsr2_85 88.8 39.5 12.7% 5.7 5.7 n/a   60.0 kts
20211013T000739 ssmis16_85 166.5 78.4 NaN% NaN NaN n/a   60.1 kts
20211013T013625 ssmis17_85 244.2 95.1 4.1% 3.7 3.7 n/a   61.3 kts
20211013T025019 gmi_85 188.7 111.7 NaN% NaN NaN n/a   62.4 kts
20211013T090120 amsr2_85 77.7 33.9 11.6% 7.1 7.1 n/a   65.0 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).