READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 77022.138 4092.233 -2526.363 4.887619e-03 1.998459e-03 -1.596875e-03 0.446258 2.491796e-04 1.867680e-05 1.746862 9 0.735977 2953.599400 149.808827 3.060741