READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 100776.015 445167.288 -79002.417 3.227364e-03 7.373351e-04 -7.373351e-04 0.017498 1.600072e-04 7.501254e-06 1.441640 22 1.467539 9171.703400 298.440085 4.377065