READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 8268.402 4379.359 -1652.978 3.515857e-02 9.409704e-03 -9.409704e-03 0.263933 9.977906e-04 7.073150e-05 3.632199 17 1.588618 1592.135500 136.851233 3.736416