Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20210716T200043 amsr2_85 33.3 161.8 NaN% NaN NaN n/a   30.0 kts
20210717T113114 ssmis16_85 155.4 72.8 21.9% 3.9 -3.9 n/a   30.0 kts
20210717T133527 ssmis17_85 166.5 78.4 11.0% 5.5 -5.5 n/a   31.3 kts
20210717T152518 gmi_85 233.1 106.2 2.7% 8.6 -8.6 n/a   32.9 kts
20210717T235713 ssmis18_85 33.3 17.2 0.0% 0.9 -0.9 n/a   35.0 kts
20210718T044518 gmi_85 99.9 61.7 12.3% 5.8 -5.8 n/a   42.9 kts
20210718T085633 amsr2_85 199.8 95.1 26.0% 1.7 -1.7 n/a   45.0 kts
20210718T123136 ssmis18_85 199.8 95.1 30.1% 0.7 -0.7 n/a   45.4 kts
20210718T234454 ssmis18_85 233.1 95.1 8.2% 3.3 -3.3 n/a   45.2 kts
20210718T234754 ssmi15_85 210.9 100.6 4.1% 3.0 -3.0 n/a   45.2 kts
20210719T001220 ssmis16_85 244.2 100.6 8.2% 3.6 -3.6 n/a   44.8 kts
20210719T021602 ssmis17_85 266.4 134.0 4.1% 4.5 -4.5 n/a   43.1 kts
20210719T093910 amsr2_85 155.4 72.8 0.0% 1.9 -1.9 n/a   37.0 kts
20210719T121853 ssmis18_85 55.5 111.7 NaN% NaN NaN n/a   34.7 kts
20210719T122002 ssmi15_85 210.9 100.6 0.0% 3.3 -3.3 n/a   34.7 kts
20210719T124552 ssmis16_85 244.2 117.3 NaN% NaN NaN n/a   34.4 kts
20210719T144916 ssmis17_85 199.8 78.4 4.1% 2.8 -2.8 n/a   32.6 kts
20210719T151519 gmi_85 144.3 67.3 0.0% 2.0 -2.0 n/a   32.3 kts
20210720T020302 ssmis17_85 188.7 89.5 0.0% 1.7 -1.7 n/a   30.0 kts
20210720T043519 gmi_85 33.3 22.8 0.0% 1.4 -1.4 n/a   30.0 kts
20210720T102221 amsr2_85 177.6 83.9 0.0% 2.5 -2.5 n/a   30.0 kts
20210720T123314 ssmis16_85 144.3 106.2 4.1% 0.9 -0.9 n/a   30.0 kts
20210720T143609 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20210721T010059 ssmis18_85 22.2 6.1 0.0% 1.4 -1.4 n/a   27.8 kts
20210721T133002 ssmi15_85 255.3 122.9 0.0% 4.0 -4.0 n/a   25.0 kts
20210721T133503 ssmis18_85 199.8 95.1 2.7% 2.7 -2.7 n/a   25.0 kts
20210721T215852 amsr2_85 144.3 67.3 0.0% 2.9 -2.9 n/a   25.0 kts
20210722T004135 ssmi15_85 111.0 50.6 0.0% 7.4 -7.4 n/a   25.0 kts
20210722T004849 ssmis18_85 22.2 6.1 0.0% 1.2 -1.2 n/a   25.0 kts
20210722T011430 ssmis16_85 133.2 61.7 0.0% 5.7 -5.7 n/a   25.0 kts
20210722T031652 ssmis17_85 22.2 6.1 0.0% 1.3 -1.3 n/a   25.0 kts
20210722T131446 ssmi15_85 22.2 6.1 0.0% 2.7 -2.7 n/a   22.0 kts
20210722T132302 ssmis18_85 22.2 6.1 0.0% 3.4 -3.4 n/a   21.9 kts
20210722T134914 ssmis16_85 33.3 11.7 0.0% 1.7 -1.7 n/a   21.7 kts
20210722T155018 gmi_85 199.8 95.1 0.0% 5.2 -5.2 n/a   20.9 kts
20210722T155127 ssmis17_85 199.8 95.1 0.0% 3.2 -3.2 n/a   20.9 kts
20210722T224125 amsr2_85 11.1 2.5 0.0% 4.8 -4.8 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).