XMM-Newton Science Analysis System


omqualitymap (omqualitymap-1.3) [xmmsas_20141104_1833-14.0.0]

Meta Index / Home Page / Description / Mode 1- Quality-image pixel

Notes

1. Bit 0 (Bad pixel) is initially set by omcosflag. When omdetect does photometry on the detected point-like sources, any quality-pixel within the aperture that has this bit set will cause the quality-flag bit 0 of the source to be set. Note that pixels within the background-annulus with quality-bit 0 set are not used. Similarly, for extended-sources, any quality-pixel assigned to the source that has bit 0 set will cause the quality-flag bit 0 of the source to be set.

2. Bit 6 (Bright-source close proximity) is set by omdetect
3. Bit 8 (Point-source lies within extended source) is set by omdetect- no sense in setting the quality-image pixels.