Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20170414T064840 ssmis16_85 55.5 22.8 1.4% 9.0 -9.0 n/a   25.0 kts
20170414T101303 ssmis17_85 166.5 83.9 NaN% NaN NaN n/a   25.0 kts
20170414T112640 gmi_85 88.8 33.9 53.4% 8.5 -8.5 n/a   25.0 kts
20170414T192651 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   26.2 kts
20170415T061509 ssmi15_85 22.2 6.1 0.0% 1.5 -1.5 n/a   25.0 kts
20170415T095959 ssmis17_85 144.3 67.3 NaN% NaN NaN n/a   24.4 kts
20170415T101922 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   24.3 kts
20170415T185120 ssmi15_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20170415T223726 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20170415T225704 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20170416T055930 ssmi15_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20170416T080422 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   20.0 kts
20170416T111640 gmi_85 111.0 45.0 NaN% NaN NaN n/a   20.0 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).