READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 133029.077 14449.083 -8713.304 2.279238e-03 1.454382e-03 -1.034698e-03 0.143754 6.936874e-05 7.394732e-06 2.013576 4 0.230977 3329.694400 3.846592 2.202805