mass tcell 3.33 .252 4.62 .263 5.43 .251 5.73 .251 6.12 .183 6.29 .213 6.45 .332 6.51 .203 6.65 .252 6.75 .342 6.81 .471 7.56 .431 7.83 .312 8.02 .304 8.06 .37 8.18 .381 9.08 .43 9.15 .43 9.35 .213 9.42 .508 9.95 .411