READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 2378.522 4304.139 -1180.235 8.290142e-03 3.008254e-03 -2.478262e-03 0.385396 6.746514e-04 4.960136e-05 1.657130 12 1.425980 2113.653900 100.858546 3.345144