READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 258983.837 11866.165 -13430.427 2.281722e-03 1.168586e-03 -9.543878e-04 0.174643 8.598830e-04 2.605706e-05 1.399852 11 3.798845 4417.862601 3.044196 2.390770