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XMM-Newton Science Analysis System


omqualitymap (omqualitymap-1.5) [xmmsas_20211130_0941-20.0.0]

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.



XMM-Newton SOC -- 2021-11-30