READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 202976.558 82415.201 -49762.534 1.048234e-03 7.185501e-04 -5.114140e-04 0.042112 8.855769e-05 5.005576e-06 1.663726 4 0.492930 5566.206000 3.083219 2.049679