READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 3839.703 3655.679 -2154.260 4.267155e-03 2.211070e-03 -1.678357e-03 0.349558 2.567559e-04 2.169983e-05 1.581716 6 0.521449 2030.913000 4.244222 2.542459