READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 27811.418 98970.859 -9617.573 2.553562e-03 8.848567e-04 -7.289633e-04 0.068854 1.239678e-04 7.181263e-06 1.724230 12 0.926879 7476.768600 206.231645 3.503005