READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 6848.704 28612.887 -5234.806 9.308466e-03 2.131874e-03 -2.131874e-03 0.108743 1.281779e-04 1.451329e-05 1.754478 20 0.471787 3680.716400 365.564666 4.366330 330844.998 47414.849 -32626.468 1.457156e-02 2.972750e-03 -2.972750e-03 0.034959 1.751198e-04 1.933874e-05 1.663541 25 0.490011 2798.146800 452.943859 4.901711