READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 45104.451 878.042 -826.922 2.215556e-02 4.958158e-03 -4.958158e-03 1.000000 9.509457e-06 3.882220e-06 1.890254 20 0.016213 1704.964000 3019.134621 4.468506