## spectrum_num t_start_since_trig t_stop_since_trig t_start_met t_stop_met
1 49.271999985 54.271999985 142921791.288 142921796.288
2 54.271999985 59.271999985 142921796.288 142921801.288
3 59.271999985 61.6845999956 142921801.288 142921803.701
4 61.6845999956 64.5679999888 142921803.701 142921806.584