Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210906T075450 ssmis18_85 33.3 11.7 80.8% 5.6 -5.6 n/a   51.6 kts
20210906T080928 ssmis16_85 44.4 17.2 84.9% 1.8 -1.8 n/a   51.8 kts
20210906T085519 gmi_85 55.5 6.1 89.0% 15.6 -30.6 n/a   52.4 kts
20210906T095325 ssmis17_85 33.3 11.7 100.0% 29.9 -44.9 n/a   53.2 kts
20210906T170024 amsr2_85 11.1 2.5 100.0% 16.0 31.0 >65 kts   59.2 kts
20210906T203246 ssmis18_85 11.1 2.5 NaN% NaN NaN n/a   57.9 kts
20210906T204706 ssmis16_85 11.1 2.5 NaN% NaN NaN n/a   57.7 kts
20210906T221019 gmi_85 333.0 161.8 NaN% NaN NaN n/a   56.5 kts
20210906T223024 ssmis17_85 33.3 17.2 NaN% NaN NaN n/a   56.2 kts
20210907T052822 amsr2_85 11.1 28.4 NaN% NaN NaN n/a   45.9 kts
20210907T074246 ssmis18_85 44.4 22.8 65.2% 5.3 -5.3 n/a   47.9 kts
20210907T075705 ssmis16_85 33.3 22.8 58.8% 3.9 3.9 n/a   48.3 kts
20210907T174249 amsr2_85 22.2 6.1 67.1% 7.9 -7.9 n/a   55.0 kts
20210907T201932 ssmis18_85 44.4 17.2 69.9% 10.6 10.6 n/a   55.0 kts
20210907T203338 ssmis16_85 33.3 11.7 38.4% 4.6 4.6 n/a   55.0 kts
20210907T221700 ssmis17_85 33.3 11.7 100.0% 21.4 -36.4 n/a   55.0 kts
20210908T084518 gmi_85 55.5 28.4 NaN% NaN NaN n/a   52.7 kts
20210908T200624 ssmis18_85 155.4 72.8 NaN% NaN NaN n/a   50.0 kts
20210908T202019 ssmis16_85 177.6 83.9 12.7% 5.3 -5.3 n/a   50.0 kts
20210908T220018 gmi_85 333.0 161.8 NaN% NaN NaN n/a   50.0 kts
20210909T051720 amsr2_85 44.4 122.9 NaN% NaN NaN n/a   50.0 kts
20210909T105552 ssmis17_85 144.3 11.7 50.7% 0.0 -0.0 n/a   45.9 kts
20210909T233046 ssmis17_85 66.6 28.4 43.8% 2.5 -2.5 n/a   45.0 kts
20210910T060015 amsr2_85 122.1 6.1 49.3% 4.9 -4.9 n/a   40.0 kts
20210910T083518 gmi_85 233.1 11.7 21.9% 6.0 -6.0 n/a   40.0 kts
20210910T084646 ssmis18_85 210.9 6.1 32.9% 0.0 -0.0 n/a   40.0 kts
20210910T090019 ssmis16_85 222.0 6.1 37.0% 0.6 -0.6 n/a   40.0 kts
20210910T104234 ssmis17_85 77.7 33.9 12.3% 4.2 -4.2 n/a   40.0 kts
20210910T181322 amsr2_85 33.3 11.7 20.6% 0.0 -0.0 n/a   45.2 kts
20210910T212208 ssmis18_85 144.3 17.2 24.7% 0.0 -0.0 n/a   47.8 kts
20210910T213536 ssmis16_85 66.6 28.4 41.1% 1.2 -1.2 n/a   48.0 kts
20210910T215019 gmi_85 66.6 17.2 58.9% 0.0 -0.0 n/a   48.2 kts
20210910T231738 ssmis17_85 177.6 22.8 80.8% 0.8 -0.8 n/a   49.4 kts
20210911T083409 ssmis18_85 66.6 45.0 1.4% 5.7 -5.7 n/a   45.7 kts
20210911T084730 ssmis16_85 66.6 28.4 0.0% 5.3 -5.3 n/a   45.3 kts
20210911T210946 ssmis18_85 333.0 128.4 NaN% NaN NaN n/a   34.7 kts
20210911T230421 ssmis17_85 77.7 33.9 NaN% NaN NaN n/a   31.5 kts
20210912T054807 amsr2_85 111.0 61.7 0.0% 4.4 -4.4 n/a   30.0 kts
20210912T082519 gmi_85 55.5 22.8 NaN% NaN NaN n/a   30.0 kts
20210912T180106 amsr2_85 44.4 17.2 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).