READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 50034.153 41265.284 -31685.339 2.948077e-02 1.240828e-02 -9.772824e-03 0.005912 8.599240e-04 1.296384e-04 1.666503 8 0.370847 431.255600 136.460779 3.016607