READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 48463.166 3813.697 -6787.786 2.861367e-02 6.288671e-03 -6.288671e-03 0.090581 1.549960e-04 2.481923e-05 1.317797 21 0.148842 960.295900 874.856563 4.550034