READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7318.060 33109.589 -702.635 4.982980e-03 1.770967e-03 -1.458118e-03 0.104631 3.393856e-04 2.501984e-05 1.632446 12 1.200679 3537.800300 122.005280 3.417405