Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210121T101641 ssmis16_85 199.8 83.9 5.5% 1.2 -1.2 n/a   35.0 kts
20210121T103618 ssmis18_85 210.9 83.9 6.8% 1.5 -1.5 n/a   35.0 kts
20210121T115004 ssmis17_85 333.0 106.2 NaN% NaN NaN n/a   35.0 kts
20210121T191011 amsr2_85 55.5 11.7 9.6% 4.0 -4.0 n/a   35.0 kts
20210121T212647 ssmis16_85 188.7 50.6 9.6% 1.4 -1.4 n/a   35.0 kts
20210121T214630 ssmis18_85 155.4 56.1 17.8% 0.8 -0.8 n/a   35.0 kts
20210122T072436 amsr2_85 133.2 67.3 5.5% 4.2 -4.2 n/a   35.0 kts
20210122T100317 ssmis16_85 11.1 100.6 NaN% NaN NaN n/a   35.0 kts
20210122T102316 ssmis18_85 55.5 6.1 31.5% 2.0 -2.0 n/a   35.0 kts
20210122T211356 ssmis16_85 155.4 39.5 NaN% NaN NaN n/a   35.0 kts
20210122T213357 ssmis18_85 111.0 50.6 NaN% NaN NaN n/a   35.0 kts
20210123T002755 ssmis17_85 299.7 145.1 NaN% NaN NaN n/a   35.0 kts
20210123T095008 ssmis16_85 233.1 56.1 0.0% 0.0 -0.0 n/a   35.0 kts
20210123T101022 ssmis18_85 133.2 128.4 NaN% NaN NaN n/a   35.0 kts
20210123T185835 amsr2_85 177.6 128.4 NaN% NaN NaN n/a   35.0 kts
20210124T001501 ssmis17_85 288.6 6.1 31.5% 0.0 -0.0 n/a   34.9 kts
20210124T071131 amsr2_85 177.6 95.1 6.8% 2.2 -2.2 n/a   32.0 kts
20210124T093631 ssmis16_85 266.4 122.9 0.0% 1.6 -1.6 n/a   31.0 kts
20210124T095705 ssmis18_85 288.6 161.8 NaN% NaN NaN n/a   30.9 kts
20210124T124953 ssmis17_85 299.7 150.7 NaN% NaN NaN n/a   30.3 kts
20210125T000145 ssmis17_85 321.9 156.2 NaN% NaN NaN n/a   35.0 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).