Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20170426T215751 ssmis17_85 333.0 NaN 27.4% 0.0 -920.0 n/a   35.0 kts
20170427T061942 ssmi15_85 321.9 128.4 NaN% NaN NaN n/a   40.3 kts
20170427T071449 ssmis16_85 33.3 6.1 11.0% 3.6 -3.6 n/a   41.0 kts
20170427T193639 gmi_85 22.2 6.1 35.6% 5.8 -5.8 n/a   51.3 kts
20170427T214508 ssmis17_85 111.0 50.6 49.3% 15.9 -15.9 n/a   53.1 kts
20170427T221453 ssmis18_85 55.5 22.8 38.4% 13.1 -13.1 n/a   53.5 kts
20170428T060322 ssmi15_85 44.4 17.2 27.4% 7.7 7.7 n/a   62.6 kts
20170428T070139 gmi_85 333.0 161.8 NaN% NaN NaN n/a   63.8 kts
20170428T102226 ssmis17_85 33.3 6.1 89.0% 14.2 29.2 >65 kts   68.0 kts
20170428T105316 ssmis18_85 22.2 6.1 NaN% NaN NaN n/a   68.6 kts
20170428T195157 ssmis16_85 22.2 6.1 100.0% 13.3 28.3 >65 kts   70.0 kts
20170428T213220 ssmis17_85 144.3 2.5 82.2% 3.8 3.8 n/a   70.0 kts
20170428T220303 ssmis18_85 111.0 6.1 31.5% 0.0 0.0 n/a   70.0 kts
20170429T061138 gmi_85 333.0 161.8 NaN% NaN NaN n/a   64.8 kts
20170429T100903 ssmis17_85 66.6 83.9 2.7% 6.0 6.0 n/a   61.5 kts
20170429T104020 ssmis18_85 55.5 17.2 58.9% 0.0 0.0 n/a   61.1 kts
20170429T183704 ssmi15_85 244.2 117.3 NaN% NaN NaN n/a   46.2 kts
20170429T192639 gmi_85 66.6 28.4 1.4% 1.5 1.5 n/a   44.5 kts
20170429T193912 ssmis16_85 144.3 6.1 0.0% 0.1 0.1 n/a   44.1 kts
20170429T215110 ssmis18_85 122.1 156.2 NaN% NaN NaN n/a   39.5 kts
20170430T081543 ssmis16_85 144.3 67.3 0.0% 2.9 -2.9 n/a   32.1 kts
20170430T102759 ssmis18_85 199.8 95.1 2.7% 3.9 -3.9 n/a   30.9 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).