XMM-Newton Science Analysis System
omdetect (omdetect-5.41) [xmmsas_20211130_0941-20.0.0]
Comprehensive source-flagging was introduced into SAS 6.5 in 2005. Many of the flags are set by empirical nature
and since they are based on a statistical sample of images they are not infallible to error in individual cases.
Here is a list of known shortcomingsproblems-
- Mod-8 pattern- occasionally a source that does not have any obvious mod-8 pattern
around it gets flagged and vice versa.
- Source within central enhancement region Currently omdetect
uses a circular region with a fixed radius to flag sources. This means that occasionally
some sources will not get flagged when they are clearly affected by the central light,
and some may get flagged unnecessarily.
- SOURCE ON STAR SPIKE Occasionally some sources may not be flagged when they
clearly should be.
XMM-Newton SOC -- 2021-11-30