READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 46148.346 16265.781 -254.410 1.509842e-02 6.263364e-03 -4.936546e-03 0.057673 2.752849e-04 2.334936e-05 1.859056 8 0.262284 952.774000 347.814662 3.058498