READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 148241.189 131835.930 -109623.041 2.535748e-03 6.695636e-04 -6.695636e-04 0.040975 1.950917e-04 7.128495e-06 1.561202 18 1.930199 9893.805800 227.850135 3.787165