READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 29403.931 2309.184 -2475.199 6.629453e-03 4.128388e-03 -2.937078e-03 0.202287 1.426236e-04 2.150131e-05 1.661342 4 0.138034 967.817800 4.311100 2.257160