READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 136780.696 5555.094 -2246.954 2.984978e-03 1.907752e-03 -1.357241e-03 0.313009 9.711990e-05 1.121444e-05 1.937190 4 0.237177 2442.110200 3.821713 2.199299