READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 109802.202 6389.153 -11777.718 2.974579e-03 1.277776e-03 -1.006383e-03 0.221652 1.303381e-04 1.008587e-05 1.602382 8 0.524836 4026.723800 184.058426 2.955714