READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 69876.963 5052.769 -522.021 3.910882e-03 2.492228e-03 -1.773057e-03 0.278400 1.456498e-04 1.502263e-05 1.608310 4 0.226051 1552.018700 3.866816 2.205728