READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 174411.720 342.985 -401.690 2.978969e-02 7.828545e-03 -7.828545e-03 0.976422 3.592143e-04 6.451679e-05 1.469629 15 0.261191 727.117000 314.184918 3.805265 175298.217 421.803 -543.513 3.873757e-02 7.824304e-03 -7.824304e-03 0.984410 2.571276e-04 4.774740e-05 1.486974 25 0.244340 950.266700 545.606202 4.950928