. XMM-Newton Science Analysis System . omdetect (omdetect-4.19.5) [xmmsas_20041122_1834-6.1.0] . Meta Index / Home Page . If two point-sources are close together so that their images overlap, the detection algorithim for detecting point-sources will either fail to detect one or both. However, the detection algorithm for detecting extended sources will either pick up the missing object or detect both as a single extended source. XMM-Newton SOC/SSC -- 2004-11-22