READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 33817.963 11132.889 -4892.489 2.535466e-03 1.097915e-03 -8.653352e-04 0.297270 1.232201e-04 7.808757e-06 1.629385 8 0.587005 4763.870000 199.274577 2.930040