READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 268467.506 18908.651 -25978.827 2.873519e-03 1.296849e-03 -1.005047e-03 0.098924 6.393731e-05 5.523343e-06 1.899889 7 0.283909 4440.428300 273.835482 2.859089