READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 207749.602 46092.107 -70044.656 6.644611e-03 2.471650e-03 -1.998132e-03 0.019301 2.168072e-04 2.048635e-05 1.565490 10 0.485979 2241.526200 207.183722 3.325411