XMM-Newton Users Handbook


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Next: 3.5.9.6 Practical use of OM. Some examples Up: 3.5.9 OM Operating modes and filters configuration Previous: 3.5.9.4 Filter choice


3.5.9.5 Multiple rotations of the filter wheel

With prior approval by OTAC (see § 3.5.3), it is possible to perform a series of exposures where a filter sequence is repeated, e.g. 'U , UVW1 , UVM2' - 'U , UVW1 , UVM2'- 'U , UVW1 , UVM2',...

The recommended configuration is Science User Defined mode with one window in Image mode and possibly an additional Fast mode window. The minimum exposure time will be 800 s except if Fast mode, which requires a minimum exposure time of 1200 s, is used (see section 3.5.9.3).



European Space Agency - XMM-Newton Science Operations Centre