Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210117T125058 ssmis16_85 333.0 67.3 16.4% 4.6 -4.6 n/a   37.9 kts
20210117T130916 ssmis18_85 166.5 72.8 12.3% 1.4 -1.4 n/a   38.0 kts
20210117T142548 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   38.5 kts
20210117T211412 amsr2_85 11.1 78.4 NaN% NaN NaN n/a   41.3 kts
20210118T000115 ssmis16_85 333.0 156.2 NaN% NaN NaN n/a   42.5 kts
20210118T001942 ssmis18_85 288.6 61.7 0.0% 0.4 -0.4 n/a   42.6 kts
20210118T092823 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   46.4 kts
20210118T123748 ssmis16_85 22.2 161.8 NaN% NaN NaN n/a   47.8 kts
20210118T125620 ssmis18_85 33.3 161.8 NaN% NaN NaN n/a   47.9 kts
20210118T215727 amsr2_85 222.0 106.2 32.9% 8.3 -8.3 n/a   48.4 kts
20210119T030359 ssmis17_85 111.0 61.7 35.6% 12.5 -12.5 n/a   46.2 kts
20210119T101124 amsr2_85 44.4 17.2 61.6% 0.3 -0.3 n/a   45.0 kts
20210119T153951 ssmis17_85 33.3 11.7 94.5% 17.3 -32.3 n/a   45.0 kts
20210120T011709 ssmis16_85 144.3 67.3 15.9% 6.3 -6.3 n/a   38.9 kts
20210120T013617 ssmis18_85 99.9 45.0 11.0% 9.3 -9.3 n/a   38.7 kts
20210120T025114 ssmis17_85 155.4 72.8 0.0% 5.1 -5.1 n/a   37.6 kts
20210120T105403 amsr2_85 255.3 39.5 NaN% NaN NaN n/a   35.0 kts
20210120T135237 ssmis16_85 310.8 150.7 NaN% NaN NaN n/a   35.0 kts
20210120T141157 ssmis18_85 333.0 134.0 NaN% NaN NaN n/a   35.0 kts
20210120T152616 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20210121T010439 ssmis16_85 255.3 122.9 NaN% NaN NaN n/a   35.0 kts
20210121T012355 ssmis18_85 255.3 156.2 NaN% NaN NaN n/a   35.0 kts
20210121T133931 ssmis16_85 188.7 89.5 47.0% 9.1 -9.1 n/a   41.4 kts
20210121T135856 ssmis18_85 166.5 78.4 31.5% 2.9 -2.9 n/a   41.7 kts
20210121T222944 amsr2_85 166.5 78.4 54.8% 8.8 -8.8 n/a   52.5 kts
20210122T040631 ssmis17_85 111.0 50.6 64.4% 15.8 15.8 n/a   61.8 kts
20210122T163955 ssmis17_85 66.6 28.4 42.5% 6.5 6.5 n/a   69.4 kts
20210122T231309 amsr2_85 66.6 28.4 NaN% NaN NaN n/a   74.3 kts
20210123T035354 ssmis17_85 55.5 22.8 100.0% 52.5 67.5 >85 kts# 78.2 kts
20210123T112353 amsr2_85 277.5 134.0 13.2% 3.3 3.3 n/a   67.0 kts
20210123T145347 ssmis16_85 166.5 78.4 NaN% NaN NaN n/a   55.3 kts
20210123T162614 ssmis17_85 155.4 72.8 1.4% 10.0 -10.0 n/a   50.2 kts
20210124T020826 ssmis16_85 111.0 50.6 0.0% 1.9 -1.9 n/a   34.8 kts
20210124T022853 ssmis18_85 88.8 39.5 0.0% 2.3 -2.3 n/a   34.4 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).