READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 291.254 26.783 -30.885 3.924516e+00 7.523791e-01 -7.523791e-01 1.000000 6.826748e-03 1.762659e-03 8.198073 28 0.393684 57.667900 271.585174 5.216141