READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 88399.674 47619.210 -42339.898 2.176451e-03 7.442602e-04 -6.177528e-04 0.091419 1.665639e-04 7.290302e-06 1.539038 13 1.369812 8223.944000 193.981832 3.523175