READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 1444.376 4978.031 -796.564 3.701030e-03 2.326445e-03 -1.655113e-03 0.346922 8.690807e-05 1.103734e-05 1.937897 4 0.174106 2003.332700 4.106499 2.236119