Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210804T175145 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210805T044907 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   29.0 kts
20210805T165607 amsr2_85 299.7 145.1 NaN% NaN NaN n/a   35.0 kts
20210806T035401 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20210806T192238 ssmi15_85 266.4 128.4 NaN% NaN NaN n/a   41.1 kts
20210807T061905 ssmis16_85 33.3 11.7 NaN% NaN NaN n/a   35.3 kts
20210807T064057 ssmi15_85 66.6 28.4 0.0% 1.2 -1.2 n/a   35.6 kts
20210807T164144 amsr2_85 177.6 83.9 13.7% 3.1 -3.1 n/a   43.9 kts
20210807T190520 ssmi15_85 210.9 100.6 28.8% 3.0 -3.0 n/a   45.0 kts
20210807T200356 ssmis18_85 233.1 111.7 NaN% NaN NaN n/a   45.0 kts
20210808T060703 ssmis16_85 22.2 6.1 0.0% 0.0 -0.0 n/a   45.0 kts
20210808T062606 ssmi15_85 188.7 89.5 7.1% 1.0 -1.0 n/a   45.0 kts
20210808T080242 ssmis17_85 233.1 111.7 NaN% NaN NaN n/a   45.0 kts
20210808T154526 amsr2_85 99.9 45.0 NaN% NaN NaN n/a   48.1 kts
20210808T184834 ssmi15_85 55.5 22.8 0.0% 1.1 -1.1 n/a   49.3 kts
20210809T053253 ssmis18_85 210.9 100.6 8.2% 3.0 -3.0 n/a   45.0 kts
20210809T055424 ssmis16_85 199.8 95.1 6.8% 2.3 -2.3 n/a   45.0 kts
20210809T074937 ssmis17_85 122.1 56.1 0.0% 3.4 -3.4 n/a   45.0 kts
20210809T181659 ssmis16_85 266.4 128.4 NaN% NaN NaN n/a   44.9 kts
20210809T201150 ssmis17_85 222.0 106.2 NaN% NaN NaN n/a   44.1 kts
20210810T015335 amsr2_85 244.2 117.3 NaN% NaN NaN n/a   41.7 kts
20210810T051936 ssmis18_85 321.9 156.2 NaN% NaN NaN n/a   40.3 kts
20210810T054116 ssmis16_85 321.9 156.2 NaN% NaN NaN n/a   40.1 kts
20210810T073558 ssmis17_85 333.0 161.8 NaN% NaN NaN 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.

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).