READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 216809.166 37032.546 -79104.218 3.739704e-03 1.903021e-03 -1.443348e-03 0.019301 1.869058e-04 1.591048e-05 1.501997 6 0.418954 2241.526200 4.512380 2.590994