READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 76999.921 24660.725 -44076.940 1.789268e-03 9.523092e-04 -7.222796e-04 0.071311 1.353676e-04 7.763866e-06 1.643663 6 0.663541 4901.771500 3.935841 2.477252