READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 37110.072 4647.976 -399.172 6.183980e-03 3.939279e-03 -2.799737e-03 0.200697 2.196784e-04 3.017515e-05 1.658474 4 0.222523 1012.949200 3.881686 2.208772