XMM-Newton SAS Home Page
XMM-Newton Science Analysis System


epframes (epframes-8.116) [xmmsas_20211130_0941-20.0.0]


Diagnostic images and columns

If witheventmap=Y then epframes creates a a file (eventmapset) with 4 image extensions with all events, only MIP events, soft and hard single events after MIP rejection, respectively.

If mipmethod is set to “none" then MIP events are only flagged but not the column of this event in this readout frame. if set to “sas" then also the corresponding column is flagged, and “com" means additional flagging of the neighboring columns with flagging of the whole frame if five or more MIPs in one frame. “onboard" emulates the revised algorithm after the onboard software update which is similar to “com" but without automatic full frame rejection. mipthreshold should not be changed at the moment. qualmax can be used to suppress garbage data that has escaped onboard rejection from further processing. This parameter will be removed soon. mipdist controls whether to create columns MIPDISTR and MIPDISTL (distance of event to next MIP in same frame to the right and to the left, respectively) in EVENTS extension and histogram extension MIPDHIST (possible distribution of distances to next MIP).

XMM-Newton SOC -- 2021-11-30