READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7391.036 33036.613 -775.610 3.934886e-03 1.718865e-03 -1.427488e-03 0.104631 1.101929e-03 4.411248e-05 1.529427 13 3.898406 3537.800300 3.650426 2.756511