MSSL is involved in several aspects of XMM-Newton, in particular the Optical Monitor (OM) and the Remote Grating Spectrometer (RGS). Please see the XMM-Newton, OM and RGS for further information on the instrumentation and projects.

The XMM-OM SUSS catalogues

The XMM-OM Serendipitous Ultra-violet Source Survey (XMM-SUSS) is a catalogue of Optical and UV sources detected serendipitously by the Optical Monitor (OM) on-board the European Space Agency's (ESA's) XMM-Newton observatory. The data were processed at the European Space Astronomy Centre (ESAC, Madrid, Spain) and at the University College London's (UCL's) Mullard Space Science Laboratory (MSSL) on behalf of ESA and is a partner resource to the 3XMM serendipitous X-ray source catalogue. 

The third version of the XMM-SUSS catalogue was released in March 2017 and is now available as XMM-SUSS3, using data up to July 2015. This version uses an updated correction for time-dependent sensitivity degradation. Also the photometry of faint sources detected in stacked images has been improved, and these entries in the catalogue are flagged using new SKY_IMAGE columns.

NEW for 2018

A new version of the supplementary catalogue using readout streak photometry for sources too bright to be included in the main XMM-SUSS3 catalogue, is now available. 

The previous version  XMM-SUSS2.1, and the associated supplementary readout streak catalogue, includes all data to the end of 2013.