READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 53083.135 17165.794 -18057.145 2.252457e-03 1.341829e-03 -1.018428e-03 0.114535 3.064362e-04 1.565816e-05 1.907424 6 1.236239 4034.245700 3.069419 2.211699