READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 56896.754 848.733 -660.662 2.525783e-03 2.354522e-03 -1.442399e-03 1.000000 6.199068e-06 3.579034e-06 1.914819 2 0.009357 1509.394600 4.057156 1.751099