READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 3897.029 5043.348 -846.889 1.414898e-02 4.995985e-03 -4.078521e-03 0.234544 3.936086e-04 3.479042e-05 1.869465 11 0.543779 1381.522300 217.549070 3.469144