Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20191229T094020 amsr2_85 88.8 39.5 0.0% 3.9 -3.9 n/a   35.0 kts
20191230T003002 ssmis18_85 55.5 33.9 39.7% 0.0 -0.0 n/a   35.6 kts
20191230T114927 ssmis16_85 177.6 161.8 NaN% NaN NaN n/a   49.8 kts
20191230T130242 ssmis18_85 144.3 67.3 42.5% 10.0 -10.0 n/a   50.9 kts
20191230T131639 gmi_85 144.3 67.3 24.7% 8.4 -8.4 n/a   51.1 kts
20191230T211728 amsr2_85 22.2 6.1 20.6% 5.8 -5.8 n/a   57.7 kts
20191231T023639 gmi_85 55.5 22.8 32.9% 12.2 -12.2 n/a   62.2 kts
20191231T025920 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   62.5 kts
20191231T092715 amsr2_85 22.2 11.7 21.9% 14.6 14.6 n/a   67.9 kts
20191231T153054 ssmis17_85 199.8 11.7 NaN% NaN NaN n/a   70.0 kts
20200101T024630 ssmis17_85 22.2 6.1 31.5% 0.0 0.0 n/a   66.5 kts
20200101T100830 amsr2_85 210.9 50.6 9.6% 2.1 2.1 n/a   57.3 kts
20200101T151522 ssmis17_85 310.8 150.7 NaN% NaN NaN n/a   54.9 kts
20200101T210752 amsr2_85 299.7 145.1 NaN% NaN NaN n/a   51.6 kts
20200101T235529 ssmis18_85 199.8 95.1 NaN% NaN NaN n/a   50.0 kts
20200102T023139 gmi_85 22.2 6.1 8.2% 0.0 -0.0 n/a   50.0 kts
20200102T023555 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   50.0 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).