READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 7078.629 275.266 -391.676 9.677613e-03 6.129749e-03 -4.360915e-03 1.000000 3.040622e-04 4.932541e-05 1.699869 4 0.202792 666.941800 3.967804 2.219170