READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 787173.069 6168.694 -6170.343 9.690545e-03 7.427690e-03 -5.002463e-03 0.065024 2.433684e-04 3.947957e-05 2.771862 3 0.195263 802.336000 3.215431 1.937155