READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 77828.691 56089.854 -40103.054 5.076331e-03 2.006190e-03 -1.603052e-03 0.028933 1.616310e-04 1.608289e-05 1.652392 9 0.449836 2783.103000 191.021035 3.166667