READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 3723.851 5216.527 -673.708 7.727970e-03 3.943834e-03 -2.991204e-03 0.234545 3.148115e-04 3.414611e-05 1.918484 6 0.434919 1381.522300 4.467301 2.583565