READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 100215.373 666.034 -763.127 1.863574e-02 4.539788e-03 -4.539788e-03 1.000000 4.073121e-04 4.417920e-05 1.529088 18 0.582115 1429.161000 275.864865 4.104980