READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 68451.953 1796.977 -5289.763 2.520386e-03 1.351130e-03 -1.047115e-03 0.529287 3.589294e-04 1.597215e-05 1.672049 7 1.346316 3750.920800 3.426702 2.406982