READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 1530.974 4457.847 -1005.472 6.853536e-03 2.897459e-03 -2.422419e-03 0.356591 2.194975e-03 7.905010e-05 1.373084 14 4.276189 1948.172100 3.740137 2.829212