READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 117947.872 4714.838 -1287.844 1.123977e-02 3.746914e-03 -3.085005e-03 0.333740 2.429779e-04 2.275696e-05 1.955788 12 0.486766 2003.332700 252.539856 3.643354