Date/Time Sat Diameter (km) Ring % Tb diff (K) Score Meaning NHC estimate
19970907T005342 ssmi14_85 101.2 4.2% 20.1 20.1 >65 kts   75.0 kts
19970907T101301 ssmi13_85 78.9 9.6% 21.9 21.9 >65 kts   75.0 kts
19970907T112712 ssmi11_85 123.4 27.4% 14.2 14.2 n/a   75.0 kts
19970907T212746 ssmi13_85 67.8 100.0% 23.9 38.9 >65 kts   92.9 kts
19970907T224127 ssmi11_85 67.8 8.2% 15.9 15.9 n/a   93.9 kts
19970908T004149 ssmi14_85 56.7 100.0% 26.4 41.4 >65 kts   95.6 kts
19970908T023648 ssmi10_85 56.7 61.6% 22.7 22.7 >65 kts   97.2 kts
19970908T100009 ssmi13_85 45.6 100.0% 28.6 43.6 >65 kts   103.3 kts
19970908T111301 ssmi11_85 45.6 100.0% 38.0 53.0 >65 kts   104.3 kts
19970908T131356 ssmi14_85 45.6 76.7% 21.8 21.8 >65 kts   106.0 kts
19970908T211519 ssmi13_85 56.7 100.0% 34.6 49.6 >65 kts   110.0 kts
19970909T003014 ssmi14_85 323.5 NaN% NaN NaN n/a   110.0 kts
19970909T020549 ssmi10_85 56.7 64.4% 17.0 17.0 n/a   110.0 kts
19970909T094648 ssmi13_85 45.6 48.0% 14.4 14.4 n/a   110.0 kts
19970909T130019 ssmi14_85 45.6 16.4% 10.5 10.5 n/a   110.0 kts
19970909T142546 ssmi10_85 45.6 42.5% 8.1 8.1 n/a   110.0 kts
19970909T210659 ssmi13_85 45.6 43.7% 17.8 17.8 n/a   107.4 kts
19970910T124629 ssmi14_85 134.5 28.8% 3.6 3.6 n/a   94.4 kts
19970910T205520 ssmi13_85 312.4 NaN% NaN NaN n/a   85.1 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).