READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7842.589 178.406 -222.762 5.212793e-02 1.902074e-02 -1.902074e-02 1.000000 1.926267e-02 5.727766e-04 1.703986 20 7.727569 401.168000 53.409564 2.740584