Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210513T231457 ssmi15_85 111.0 161.8 NaN% NaN NaN n/a   35.0 kts
20210514T111143 ssmis16_85 133.2 67.3 15.1% 4.7 -4.7 n/a   39.3 kts
20210514T134130 ssmis17_85 166.5 78.4 37.0% 3.0 -3.0 n/a   41.4 kts
20210514T230526 ssmi15_85 333.0 161.8 NaN% NaN NaN n/a   49.2 kts
20210514T234832 ssmis16_85 222.0 106.2 NaN% NaN NaN n/a   49.8 kts
20210515T021825 ssmis17_85 299.7 45.0 46.6% 3.0 -3.0 n/a   51.9 kts
20210515T081538 amsr2_85 144.3 45.0 48.0% 9.2 9.2 n/a   56.9 kts
20210515T105909 ssmis16_85 144.3 50.6 56.2% 8.9 8.9 n/a   59.2 kts
20210515T132839 ssmis17_85 99.9 45.0 46.6% 12.8 12.8 n/a   61.2 kts
20210515T202915 amsr2_85 77.7 33.9 100.0% 28.1 43.1 >65 kts   69.1 kts
20210515T233508 ssmis16_85 66.6 28.4 100.0% 32.0 47.0 >65 kts   74.3 kts
20210516T020411 ssmis17_85 66.6 28.4 100.0% 33.4 48.4 >65 kts   80.2 kts
20210516T085918 amsr2_85 66.6 28.4 100.0% 52.9 67.9 >85 kts# 95.0 kts
20210516T114240 ssmis18_85 55.5 22.8 100.0% 56.4 71.4 >85 kts# 99.5 kts
20210516T211115 amsr2_85 55.5 22.8 100.0% 37.2 52.2 >65 kts   115.3 kts
20210516T232103 ssmis16_85 44.4 17.2 100.0% 23.0 38.0 >65 kts   118.9 kts
20210517T001657 ssmis18_85 55.5 22.8 100.0% 31.6 46.6 >65 kts   119.8 kts
20210517T015002 ssmis17_85 55.5 22.8 100.0% 47.3 62.3 >85 kts# 118.5 kts
20210517T112641 ssmi15_85 55.5 22.8 100.0% 39.2 54.2 >65 kts   101.4 kts
20210517T113049 ssmis18_85 55.5 22.8 100.0% 47.6 62.6 >85 kts# 101.2 kts
20210517T235740 ssmi15_85 33.3 11.7 28.8% 11.0 11.0 n/a   100.1 kts
20210518T000321 ssmis18_85 111.0 50.6 65.2% 19.4 19.4 n/a   99.8 kts
20210518T013545 ssmis17_85 122.1 56.1 47.0% 21.7 21.7 >65 kts   94.7 kts
20210518T111147 ssmi15_85 155.4 72.8 0.0% 1.3 1.3 n/a   67.0 kts
20210518T111904 ssmis18_85 233.1 111.7 18.6% 1.3 1.3 n/a   66.7 kts
20210518T234052 ssmi15_85 277.5 134.0 0.0% 0.8 -0.8 n/a   40.5 kts
20210518T234940 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   40.3 kts
20210519T075427 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210519T105502 ssmi15_85 66.6 28.4 0.0% 0.3 -0.3 n/a   30.0 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).