READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 49412.658 11113.930 -12449.844 4.841323e-03 2.685884e-03 -1.982025e-03 0.071930 1.497520e-04 1.740832e-05 1.728978 5 0.253820 1694.934800 4.449313 2.442615