READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 444.794 25136.797 -352.719 3.923832e-03 8.628709e-04 -8.628709e-04 0.446090 5.895808e-05 2.350812e-06 2.091756 22 0.670389 11370.605500 797.960421 4.547414