Requirement	Goal
XRT	absolute effective area (2-10 keV in XIS)	5%	5%
XRT	XRS to XIS area cross-calibration	1%	1%
XRT	vignetting	2% over XIS fov	2% over XIS fov
XRT	stray-light response (1-2 keV at 20' off-axis)	< 5%	< 5%
XRT	on-axis PSF (for all integration radii from 1'-6')	1%	1%
XRT	off-axis PSF (as on-axis but for all XIS fov)	1%	1%
XRT	optical axis position in XRS	< 1'	< 1'
XRT	optical axis position in each XIS	< 0.2'	< 0.2'
XRS	absolute effective area	5-10%	?
XRS	relative effective area	5% per energy bin	?
XRS	energy scale	2 eV	1 eV
XRS	line spread function (FWHM)	1 eV	?
XRS	absolute timing	?	100 us
XRS	relative timing	80 us	10 us
XIS	depletion layer thickness (from QE@10 keV)	5%	5%
XIS	gate structure thickness (from QE@10 keV)	6%	6%
XIS	energy scale	0.1%	0.1%
XIS	resolution (FWHM) @ Fe K	5%	5%
XIS	resolution (FWHM) @ OVIII	18%	18%
XIS	QE vs. position	5%	5%
XIS	OBF integrity	broken/unbroken	broken/unbroken
XIS	timing	?	?
HXD	absolute effective area	20%	5%
HXD	relative effective area	10%	5%
HXD	vignetting	10%	5%
HXD	background modelling	10%	3%
HXD	absolute timing	100us	100us
HXD	relative timing	1e-8	1e-8
HXD	GBST absolute timing	15ms	15ms