READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7231.072 574.454 -615.648 9.743007e-03 4.901248e-03 -3.917516e-03 0.863786 2.223105e-03 1.347955e-04 1.491548 9 2.285336 1027.993000 3.369618 2.487037