READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 160597.285 436594.036 -18900.530 8.964670e-04 6.225033e-04 -4.430546e-04 0.015264 7.740336e-05 4.045939e-06 1.800377 4 0.538166 6952.742899 2.987859 2.023378