READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 21950.720 45781.855 -17683.355 7.410919e-04 3.193382e-04 -2.581595e-04 0.264576 1.064494e-04 3.409110e-06 1.515154 10 1.787433 16791.388098 4.237956 2.870675