Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20171008T181751 amsr2_85 177.6 83.9 NaN% NaN NaN n/a   25.0 kts
20171008T191023 ssmi15_85 133.2 61.7 NaN% NaN NaN n/a   25.0 kts
20171008T192640 gmi_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20171008T232804 ssmis18_85 166.5 78.4 9.6% 1.4 -1.4 n/a   25.0 kts
20171009T082552 ssmis16_85 99.9 45.0 8.2% 2.2 -2.2 n/a   30.0 kts
20171009T084639 gmi_85 88.8 33.9 0.0% 1.4 -1.4 n/a   30.0 kts
20171009T104053 ssmis18_85 177.6 67.3 7.1% 2.5 -2.5 n/a   30.0 kts
20171009T111144 ssmis17_85 122.1 61.7 14.1% 4.3 -4.3 n/a   30.0 kts
20171009T190043 amsr2_85 122.1 56.1 NaN% NaN NaN n/a   30.0 kts
20171009T205959 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20171009T231531 ssmis18_85 244.2 150.7 NaN% NaN NaN n/a   30.0 kts
20171009T234538 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   30.0 kts
20171010T055401 amsr2_85 321.9 156.2 NaN% NaN NaN n/a   25.1 kts
20171010T074706 ssmi15_85 44.4 17.2 0.0% 2.7 -2.7 n/a   23.5 kts
20171010T105905 ssmis17_85 22.2 6.1 0.0% 0.8 -0.8 n/a   20.8 kts
20171010T201851 ssmi15_85 99.9 45.0 0.0% 0.5 -0.5 n/a   13.1 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).