READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 30889.492 25489.533 -7389.964 7.470507e-03 2.254843e-03 -2.254843e-03 0.073436 8.957914e-04 4.708175e-05 1.405129 15 2.162915 2414.529900 112.922691 3.313094