READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 66942.236 70569.463 -15599.025 1.726094e-03 6.814642e-04 -5.509096e-04 0.114674 1.048842e-04 4.681210e-06 1.902722 10 1.036389 9881.269300 193.781411 3.133170