READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 54626.039 4801.765 -6354.943 1.017791e-02 7.398678e-03 -4.977167e-03 0.096411 3.797466e-05 9.493664e-06 3.699792 3 0.040847 1075.631700 4.361915 2.044921