Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20210216T230714 amsr2_85 44.4 NaN 75.3% 0.0 -920.0 n/a   45.0 kts
20210217T015922 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   45.0 kts
20210217T032230 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   45.0 kts
20210217T111716 amsr2_85 155.4 72.8 0.0% 7.2 -7.2 n/a   45.0 kts
20210217T143138 ssmis16_85 144.3 67.3 15.1% 6.5 -6.5 n/a   45.0 kts
20210217T155417 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   45.0 kts
20210218T014639 ssmis16_85 177.6 89.5 9.6% 3.0 -3.0 n/a   48.2 kts
20210218T021520 ssmis18_85 33.3 11.7 17.8% 2.0 -2.0 n/a   48.4 kts
20210218T130019 gmi_85 66.6 28.4 19.2% 0.5 -0.5 n/a   52.9 kts
20210218T141806 ssmis16_85 22.2 6.1 45.2% 6.3 -6.3 n/a   53.5 kts
20210218T144704 ssmis18_85 266.4 128.4 NaN% NaN NaN n/a   53.7 kts
20210218T225544 amsr2_85 22.2 6.1 31.5% 9.5 9.5 n/a   61.2 kts
20210219T013052 ssmi15_85 22.2 6.1 57.5% 8.0 8.0 n/a   64.4 kts
20210219T013354 ssmis16_85 22.2 6.1 64.4% 7.4 7.4 n/a   64.5 kts
20210219T020254 ssmis18_85 22.2 6.1 100.0% 19.4 34.4 >65 kts   65.1 kts
20210219T022019 gmi_85 22.2 6.1 100.0% 26.5 41.5 >65 kts   65.4 kts
20210219T110433 amsr2_85 11.1 2.5 64.4% 14.2 14.2 n/a   76.3 kts
20210220T114654 amsr2_85 55.5 22.8 27.4% 0.0 0.0 n/a   65.2 kts
20210220T224449 amsr2_85 133.2 61.7 11.0% 3.5 3.5 n/a   65.0 kts
20210221T021518 gmi_85 22.2 6.1 48.0% 0.0 0.0 n/a   61.2 kts
20210221T105028 amsr2_85 333.0 161.8 NaN% NaN NaN n/a   46.9 kts
20210221T120018 gmi_85 122.1 56.1 6.8% 4.2 4.2 n/a   45.0 kts
20210221T215101 amsr2_85 244.2 117.3 0.0% 5.5 -5.5 n/a   53.2 kts
20210222T005733 ssmis16_85 22.2 161.8 NaN% NaN NaN n/a   55.0 kts
20210222T012519 gmi_85 333.0 161.8 NaN% NaN NaN n/a   55.0 kts
20210222T095300 amsr2_85 166.5 78.4 NaN% NaN NaN n/a   51.2 kts
20210222T132105 ssmis16_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).