READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 13904.570 24539.605 -9059.756 3.792994e-03 2.294880e-03 -1.632657e-03 0.055594 1.318894e-05 5.898275e-06 1.782410 4 0.024636 1867.938500 360.818888 2.323203