READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 177893.379 162008.819 -58107.813 2.3301e-03 0.0000e+00 0.0000e+00 0.0453 8.0523e-05 3.6156e-06 1.8347 4 0.8021 9961.5029 2.5331 inf