READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7412.961 4515.828 -1424.902 4.325646e-03 2.181644e-03 -1.654669e-03 0.339752 1.828023e-04 1.690008e-05 1.550485 6 0.368964 2018.376500 4.663139 2.614206