## spectrum_num t_start_since_trig t_stop_since_trig t_start_met t_stop_met
1 248.927999973 253.927999973 275912001.312 275912006.312
2 253.927999973 257.116599977 275912006.312 275912009.501
3 257.116599977 258.931999981 275912009.501 275912011.316