XMM-Newton Science Analysis System
omsource (omsource-1.27) [xmmsas_20190531_1155-18.0.0]
This spin-box box determines the semi-major axis of the photometry aperture.
For a “point” source the semi-minor and major axes are equal, but for
an “extended” source the semi-minor axis is determined by the spin-box control
a/b.
XMM-Newton SOC/SSC -- 2019-06-02
