READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 452.522 1122.764 -384.123 1.629892e-02 3.827229e-03 -3.827229e-03 1.000000 6.311302e-04 5.761404e-05 1.289343 20 0.951042 1506.887300 219.412863 4.258674