READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 5152.151 6181.988 -2055.317 4.982396e-03 1.373763e-03 -1.373763e-03 0.498580 2.316863e-04 1.527694e-05 1.456563 15 0.951526 4106.957400 223.909470 3.626825