READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7815.469 205.526 -195.642 5.790971e-02 2.026457e-02 -2.026457e-02 1.000000 1.796252e-02 5.231310e-04 1.815813 20 7.205990 401.168000 60.963504 2.857683