XMM-Newton Science Analysis System


omsource (omsource-1.25.1) [xmmsas_20160201_1833-15.0.0]

Meta Index / Home Page / Source Selection Window / Summary of Widgets

centroiding

This check-box determines if the source is to be centroided. If ``checked'' then the coordinates of each newly selected source will be refined by a centroiding algorithm. In some cases (eg a star near to a much brighter star) the centroiding algorithm may not work too well and it may be better to ``uncheck'' it.