READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 55726.831 8738.038 -8698.675 4.706372e-03 1.236114e-03 -1.236114e-03 0.285144 1.547243e-04 9.844871e-06 1.536367 16 0.769285 4971.975900 311.158203 3.807394