Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20200821T172809 amsr2_85 333.0 100.6 7.6% 2.8 -2.8 n/a   25.0 kts
20200821T204301 ssmis16_85 199.8 100.6 15.5% 0.0 -0.0 n/a   29.5 kts
20200821T231351 ssmis17_85 333.0 33.9 1.4% 0.0 -0.0 n/a   33.7 kts
20200822T075921 ssmis16_85 99.9 45.0 11.0% 2.5 -2.5 n/a   46.7 kts
20200822T102958 ssmis17_85 77.7 33.9 30.8% 8.5 -8.5 n/a   48.7 kts
20200822T202908 ssmis16_85 33.3 11.7 0.0% 0.0 -0.0 n/a   52.1 kts
20200822T225925 ssmis17_85 33.3 11.7 19.2% 5.4 -5.4 n/a   54.2 kts
20200823T050738 amsr2_85 99.9 45.0 16.4% 15.6 15.6 n/a   59.3 kts
20200823T074655 ssmis16_85 55.5 22.8 23.3% 2.5 2.5 n/a   63.0 kts
20200823T101714 ssmis17_85 177.6 83.9 34.2% 14.1 14.1 n/a   67.1 kts
20200823T171434 amsr2_85 188.7 78.4 28.8% 7.2 7.2 n/a   65.6 kts
20200823T201542 ssmis16_85 166.5 72.8 45.2% 3.8 3.8 n/a   66.9 kts
20200823T224551 ssmis17_85 99.9 45.0 NaN% NaN NaN n/a   69.0 kts
20200824T073407 ssmis16_85 77.7 33.9 49.3% 15.7 15.7 n/a   80.2 kts
20200824T100353 ssmis17_85 77.7 39.5 57.5% 13.3 13.3 n/a   88.5 kts
20200824T175705 amsr2_85 77.7 33.9 NaN% NaN NaN n/a   90.0 kts
20200824T200225 ssmis16_85 55.5 22.8 45.2% 17.4 17.4 n/a   90.0 kts
20200824T211121 ssmis18_85 77.7 28.4 100.0% 34.7 49.7 >65 kts   90.0 kts
20200824T223142 ssmis17_85 66.6 28.4 NaN% NaN NaN n/a   90.0 kts
20200825T045612 amsr2_85 66.6 28.4 100.0% 28.3 43.3 >65 kts   92.1 kts
20200825T072142 ssmis16_85 55.5 22.8 100.0% 27.9 42.9 >65 kts   93.1 kts
20200825T083022 ssmis18_85 77.7 33.9 NaN% NaN NaN n/a   93.5 kts
20200825T095059 ssmis17_85 77.7 33.9 100.0% 34.1 49.1 >65 kts   94.1 kts
20200825T170111 amsr2_85 66.6 28.4 NaN% NaN NaN n/a   95.0 kts
20200825T194835 ssmis16_85 111.0 50.6 39.7% 21.3 21.3 >65 kts   96.5 kts
20200825T205740 ssmis18_85 111.0 50.6 41.1% 20.6 20.6 >65 kts   97.5 kts
20200825T221739 ssmis17_85 155.4 67.3 100.0% 23.8 38.8 >65 kts   98.6 kts
20200826T070959 ssmis16_85 44.4 17.2 4.1% 5.3 5.3 n/a   97.0 kts
20200826T081923 ssmis18_85 44.4 17.2 98.6% 19.7 34.7 >65 kts   96.5 kts
20200826T093907 ssmis17_85 55.5 22.8 NaN% NaN NaN n/a   96.0 kts
20200826T174236 amsr2_85 244.2 117.3 7.1% 4.6 4.6 n/a   80.7 kts
20200826T204340 ssmis18_85 333.0 134.0 NaN% NaN NaN n/a   73.2 kts
20200827T044657 amsr2_85 333.0 150.7 NaN% NaN NaN n/a   45.1 kts
20200827T080825 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   40.0 kts
20200827T092757 ssmis17_85 22.2 6.1 0.0% 0.9 -0.9 n/a   39.5 kts
20200827T202845 ssmis18_85 22.2 6.1 0.0% 0.3 -0.3 n/a   29.0 kts
20200828T075657 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20200828T091529 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   25.0 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).