Date/Time Sat MW Eye diam (km) Est RMW (km) Ring % Tb diff (K) Score Meaning JTWC estimate
20181216T195245 amsr2_85 55.5 22.8 5.5% 6.5 -6.5 n/a   50.0 kts
20181217T023640 gmi_85 22.2 6.1 79.5% 12.5 -12.5 n/a   52.2 kts
20181217T080755 amsr2_85 88.8 39.5 87.7% 10.1 25.1 >65 kts   55.0 kts
20181217T094520 ssmis16_85 77.7 33.9 NaN% NaN NaN n/a   55.0 kts
20181217T223640 ssmis16_85 22.2 6.1 NaN% NaN NaN n/a   68.8 kts
20181218T000445 ssmis18_85 99.9 45.0 100.0% 30.5 45.5 >65 kts   70.1 kts
20181218T010955 ssmis17_85 111.0 50.6 100.0% 21.1 36.1 >65 kts   71.0 kts
20181218T124128 ssmis18_85 88.8 39.5 100.0% 67.3 82.3 >85 kts# 90.0 kts
20181218T150140 gmi_85 88.8 39.5 100.0% 51.2 66.2 >85 kts# 90.0 kts
20181218T194158 amsr2_85 88.8 33.9 100.0% 38.7 53.7 >65 kts   97.1 kts
20181218T222410 ssmis16_85 77.7 33.9 100.0% 47.1 62.1 >85 kts# 108.3 kts
20181218T235252 ssmis18_85 77.7 33.9 100.0% 42.0 57.0 >65 kts   114.5 kts
20181219T005704 ssmis17_85 77.7 33.9 100.0% 31.5 46.5 >65 kts   115.0 kts
20181219T075450 amsr2_85 77.7 33.9 64.4% 15.6 15.6 n/a   115.0 kts
20181219T105931 ssmis16_85 66.6 28.4 67.1% 15.9 15.9 n/a   115.0 kts
20181219T122824 ssmis18_85 77.7 33.9 100.0% 24.5 39.5 >65 kts   115.0 kts
20181219T221118 ssmis16_85 99.9 45.0 57.5% 22.2 22.2 >65 kts   111.5 kts
20181219T234051 ssmis18_85 77.7 33.9 46.6% 5.5 5.5 n/a   110.3 kts
20181220T004416 ssmis17_85 88.8 39.5 100.0% 24.0 39.0 >65 kts   108.8 kts
20181220T013639 gmi_85 88.8 39.5 65.8% 22.5 22.5 >65 kts   107.3 kts
20181220T083744 amsr2_85 77.7 33.9 45.2% 8.1 8.1 n/a   95.6 kts
20181220T104618 ssmis16_85 66.6 28.4 64.4% 6.4 6.4 n/a   92.0 kts
20181220T121603 ssmis18_85 66.6 28.4 63.0% 13.8 13.8 n/a   89.8 kts
20181220T131836 ssmis17_85 99.9 45.0 43.8% 4.2 4.2 n/a   88.9 kts
20181220T145140 gmi_85 55.5 22.8 45.2% 13.3 13.3 n/a   87.6 kts
20181220T192956 amsr2_85 33.3 11.7 37.0% 18.2 18.2 n/a   83.8 kts
20181220T215831 ssmis16_85 55.5 22.8 45.2% 6.5 6.5 n/a   81.7 kts
20181221T003056 ssmis17_85 88.8 28.4 NaN% NaN NaN n/a   79.1 kts
20181221T103332 ssmis16_85 99.9 45.0 30.1% 8.2 8.2 n/a   62.4 kts
20181221T120334 ssmis18_85 88.8 33.9 34.2% 15.9 15.9 n/a   60.0 kts
20181221T201247 amsr2_85 133.2 50.6 23.3% 5.9 5.9 n/a   51.3 kts
20181222T012140 gmi_85 199.8 89.5 NaN% NaN NaN n/a   43.9 kts
20181222T082529 amsr2_85 155.4 67.3 6.8% 1.6 -1.6 n/a   38.0 kts
20181222T102009 ssmis16_85 333.0 161.8 NaN% NaN NaN n/a   36.4 kts
20181222T144140 gmi_85 255.3 122.9 NaN% NaN NaN n/a   35.0 kts
20181223T004455 ssmis18_85 333.0 161.8 NaN% NaN NaN n/a   25.0 kts
20181223T014549 ssmis17_85 299.7 145.1 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).