READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 260337.213 10512.791 -14783.797 4.535579e-03 1.482369e-03 -1.221207e-03 0.174643 5.894436e-05 6.549373e-06 1.706777 12 0.260408 4417.862601 405.733680 3.714015