READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 19892.203 9651.056 -2474.561 2.837468e-02 9.148355e-03 -7.532257e-03 0.051694 1.526107e-04 2.786278e-05 1.494116 12 0.095660 626.825000 681.607769 3.767089