READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 14367.830 1936.635 -4812.613 3.786850e-03 2.458130e-03 -1.748799e-03 0.237756 1.836648e-04 1.894358e-05 1.640122 4 0.294722 1604.672000 3.612420 2.165400