READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 133808.375 1421.186 -5231.933 4.768537e-03 2.239152e-03 -1.734013e-03 0.299228 2.726186e-04 2.468173e-05 1.470216 7 0.542728 1990.796200 4.743573 2.750000