READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 23582.780 31024.394 -15263.422 2.208763e-02 5.863390e-03 -5.863390e-03 0.031851 2.777717e-04 2.750349e-05 2.231840 15 0.409517 1474.292400 359.830677 3.767040