READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 76358.583 3471.824 -1794.662 3.385480e-03 2.286459e-03 -1.626666e-03 0.369443 2.257582e-04 1.901227e-05 1.849764 4 0.439250 1945.664800 3.206360 2.081239