Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210901T145847 amsr2_85 99.9 45.0 19.2% 5.6 -5.6 n/a   30.0 kts
20210901T180847 ssmis18_85 255.3 122.9 12.3% 5.2 -5.2 n/a   30.0 kts
20210901T182432 ssmis16_85 199.8 95.1 19.2% 2.4 -2.4 n/a   30.0 kts
20210901T201002 ssmis17_85 177.6 83.9 1.4% 4.7 -4.7 n/a   30.0 kts
20210902T052655 ssmis18_85 266.4 128.4 NaN% NaN NaN n/a   30.0 kts
20210902T054237 ssmis16_85 144.3 67.3 11.0% 4.7 -4.7 n/a   30.0 kts
20210902T072818 ssmis17_85 177.6 83.9 17.8% 3.0 -3.0 n/a   30.0 kts
20210902T073519 gmi_85 88.8 39.5 11.0% 2.6 -2.6 n/a   30.0 kts
20210902T154120 amsr2_85 299.7 134.0 NaN% NaN NaN n/a   30.0 kts
20210902T175553 ssmis18_85 333.0 145.1 NaN% NaN NaN n/a   30.0 kts
20210902T181119 ssmis16_85 310.8 161.8 NaN% NaN NaN n/a   30.0 kts
20210902T195606 ssmis17_85 310.8 145.1 5.9% 7.9 -7.9 n/a   30.0 kts
20210902T210019 gmi_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210903T051532 ssmis18_85 99.9 78.4 6.8% 3.9 -3.9 n/a   30.0 kts
20210903T053044 ssmis16_85 222.0 106.2 NaN% NaN NaN n/a   30.0 kts
20210903T071553 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210903T144455 amsr2_85 288.6 161.8 NaN% NaN NaN n/a   27.7 kts
20210903T174149 ssmis18_85 288.6 139.5 NaN% NaN NaN n/a   25.3 kts
20210903T175659 ssmis16_85 299.7 139.5 NaN% NaN NaN n/a   25.0 kts
20210903T194136 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   25.0 kts
20210904T050345 ssmis18_85 244.2 117.3 0.0% 4.8 -4.8 n/a   20.5 kts
20210904T051851 ssmis16_85 22.2 6.1 0.0% 4.4 -4.4 n/a   20.4 kts
20210904T070346 ssmis17_85 266.4 128.4 0.0% 3.8 -3.8 n/a   20.0 kts
20210904T152602 amsr2_85 244.2 117.3 NaN% NaN NaN n/a   20.0 kts
20210904T172707 ssmis18_85 288.6 139.5 NaN% NaN NaN n/a   20.0 kts
20210904T174206 ssmis16_85 288.6 139.5 1.4% 2.0 -2.0 n/a   20.0 kts
20210904T192618 ssmis17_85 44.4 17.2 0.0% 1.6 -1.6 n/a   20.0 kts
20210904T205518 gmi_85 22.2 6.1 0.0% 3.4 -3.4 n/a   20.0 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).