READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 49825.350 7108.889 -4807.068 3.463628e-03 1.366285e-03 -1.091734e-03 0.352656 1.033263e-04 7.788512e-06 1.699157 9 0.434201 4202.234800 261.717663 3.172593