evselect table=PNclean.fits withspectrumset=yes spectrumset=PNsource_spectrum.fits energycolumn=PI spectralbinsize=5 withspecranges=yes specchannelmin=0 specchannelmax=20479 expression='(FLAG==0) && (PATTERN<=4) && ((X,Y) IN circle(26579.852, 27849.238, 477.18768))'


evselect table=PNclean.fits withspectrumset=yes spectrumset=PNbackground_spectrum.fits  energycolumn=PI spectralbinsize=5 withspecranges=yes specchannelmin=0 specchannelmax=20479 expression='(FLAG==0) && (PATTERN<=4) && ((X,Y) IN circle(28579.852, 22338.127, 2254.8348))'


backscale spectrumset=PNsource_spectrum.fits badpixlocation=PNclean.fits
backscale spectrumset=PNbackground_spectrum.fits badpixlocation=PNclean.fits


rmfgen spectrumset=PNsource_spectrum.fits rmfset=PN.rmf

arfgen spectrumset=PNsource_spectrum.fits arfset=PN.arf withrmfset=yes rmfset=PN.rmf  badpixlocation=PNclean.fits detmaptype=psf

specgroup spectrumset=PNsource_spectrum.fits mincounts=20 oversample=3 rmfset=PN.rmf arfset=PN.arf backgndset=PNbackground_spectrum.fits groupedset=PN_spectrum_grp.fits