READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 60016.275 20416.815 -7902.076 3.169375e-03 2.419799e-03 -1.629707e-03 0.064190 1.014883e-04 1.113979e-05 2.045904 3 0.184485 1817.792500 3.262085 1.944751