READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 14936.785 247.571 -251.382 3.458382e-02 1.093409e-02 -9.075538e-03 1.000000 8.442078e-04 1.193890e-04 1.371786 13 0.421220 498.952700 211.161521 3.810663