Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning NHC estimate
20230820T161312 amsr2_85 321.9 161.8 NaN% NaN NaN n/a   45.0 kts
20230820T175852 ssmis18_85 310.8 161.8 NaN% NaN NaN n/a   45.0 kts
20230820T195124 ssmis16_85 33.3 11.7 0.0% 4.0 -4.0 n/a   43.5 kts
20230821T031614 gmi_85 333.0 117.3 NaN% NaN NaN n/a   37.3 kts
20230821T042356 amsr2_85 321.9 45.0 0.0% 0.8 -0.8 n/a   36.3 kts
20230821T063137 ssmis18_85 66.6 6.1 0.0% 1.3 -1.3 n/a   35.0 kts
20230821T082422 ssmis16_85 299.7 145.1 NaN% NaN NaN n/a   35.0 kts
20230821T163614 gmi_85 333.0 161.8 NaN% NaN NaN n/a   35.0 kts
20230821T193859 ssmis16_85 33.3 11.7 0.0% 1.6 -1.6 n/a   34.3 kts
20230821T212105 ssmis17_85 66.6 28.4 0.0% 0.8 -0.8 n/a   33.6 kts
20230822T050634 amsr2_85 111.0 50.6 0.0% 2.8 -2.8 n/a   30.4 kts
20230822T095226 ssmis17_85 111.0 50.6 0.0% 3.7 -3.7 n/a   30.0 kts
20230822T160202 amsr2_85 11.1 2.5 0.0% 1.7 -1.7 n/a   30.0 kts
20230822T191445 ssmis18_85 88.8 39.5 0.0% 4.0 -4.0 n/a   30.0 kts
20230822T210756 ssmis17_85 22.2 6.1 0.0% 1.0 -1.0 n/a   30.0 kts
20230823T030614 gmi_85 144.3 67.3 NaN% NaN NaN n/a   30.0 kts
20230823T074525 ssmis18_85 66.6 28.4 0.0% 4.4 -4.4 n/a   29.3 kts
20230823T093831 ssmis17_85 333.0 161.8 NaN% NaN NaN n/a   28.5 kts
20230823T162614 gmi_85 33.3 11.7 0.0% 6.4 -6.4 n/a   25.7 kts
20230823T190231 ssmis18_85 255.3 122.9 0.0% 0.0 -0.0 n/a   25.0 kts
20230823T205531 ssmis16_85 22.2 6.1 0.0% 5.4 -5.4 n/a   25.0 kts
20230823T205533 ssmis17_85 11.1 2.5 0.0% 6.2 -6.2 n/a   25.0 kts
20230824T021114 gmi_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20230824T045247 amsr2_85 310.8 150.7 NaN% NaN NaN n/a   25.0 kts
20230824T073107 ssmis18_85 177.6 83.9 NaN% NaN NaN n/a   25.0 kts
20230824T092343 ssmis16_85 188.7 89.5 NaN% NaN NaN n/a   25.0 kts
20230824T185035 ssmis18_85 166.5 78.4 NaN% NaN NaN n/a   25.0 kts
20230824T204337 ssmis16_85 22.2 6.1 NaN% NaN NaN n/a   25.0 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).