READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 71517.847 216055.998 -67014.035 1.433579e-03 4.118469e-04 -4.118469e-04 0.058150 2.322943e-04 5.801922e-06 1.554876 19 3.823664 16460.424500 158.911025 3.480855