READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 207729.074 39186.777 -33358.714 4.223698e-03 1.791973e-03 -1.412365e-03 0.037223 1.608861e-04 1.336086e-05 1.507469 8 0.434451 2700.362100 209.693009 2.990514