READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 8571.681 37675.000 -8498.537 8.157290e-04 4.107571e-04 -3.115390e-04 0.304035 2.562860e-05 2.026118e-06 2.030409 6 0.359784 14038.372700 4.692677 2.618384