READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 52046.297 584.936 -648.655 8.820918e-03 3.862385e-03 -3.044185e-03 1.000000 5.426578e-04 4.853679e-05 1.484301 8 0.669418 1233.591600 4.967516 2.897628