READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 3158.880 6148.904 -272.556 8.733505e-03 4.794865e-03 -3.541496e-03 0.149154 2.155028e-04 2.988486e-05 1.744858 5 0.206406 957.788600 4.659483 2.466049