READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 72633.335 47359.865 -39944.070 1.910257e-03 6.981718e-04 -5.644164e-04 0.113010 3.217017e-05 2.877387e-06 1.946403 10 0.317398 9866.225500 341.069352 3.384481