READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 241808.767 22892.949 -104103.822 4.082968e-03 1.743094e-03 -1.373841e-03 0.022862 1.657429e-04 1.322772e-05 1.576634 8 0.481227 2903.453400 195.770428 2.971937