READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 49299.879 10467.069 -5526.660 1.235026e-02 9.213413e-03 -6.205127e-03 0.028845 2.566423e-04 3.783984e-05 1.976998 3 0.118400 461.343200 3.611912 1.990331