XMMOMSUOB ivo://nasa.heasarc/xmmomsuob NASA/GSFC HEASARC MSSL/ESA 2026-07-17 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The 2023 release of the XMM OM Serendipitous Ultraviolet Source Survey (XMM-SUSS6.1) Catalog, a catalog of optical/UV sources detected by the Optical Monitor (OM) on-board the European Space Agency's (ESA's) XMM-Newton observatory, spans the period of observations from 2000 to November 2022. The data processing was performed at the European Space Astronomy Centre (ESAC, Madrid, Spain) using the XMM Science Analysis Software system (SAS) versions 18 and 19. In addition to covering a larger observation period, this sixth release reflects a change in philosophy with regard to the origin of the incorporated data. In previous releases, the data were generated via a bespoke processing of the OM Observation Data Files (ODFs) while in this new release, the catalog has been guided by the XMM user community and the authors have sought to harmonize the contents of the catalog with those of the OM data in the XMM-Newton Science Archive (XSA), which derive from the standard XMM-Newton pipeline processing system. While the bespoke processing and pipeline systems are fundamentally very similar, they are not identical and the differences lead to some differences in the output. The number of observations (OBSIDs) included in the catalog is 12,057. This table (XMMOMSUOB) contains the list of these observations and their characteristics, giving for each observation the filters used, the exposure time for each filter, the number of sources detected in each filter and the detection magnitude limit for each filter. The total number of entries in this release is 9,920,390. They correspond to 6,659,554 unique sources, of which 1,225,117 have multiple entries in the source table, corresponding to different observations. This list of sources is available at the HEASARC as the <a href="/W3Browse/xmm-newton/xmmomsuss.html">XMMOMSUSS table</a>. The documentation on the first release of this catalog is available at <a href="http://www.mssl.ucl.ac.uk/www_astro/XMM-OM-SUSS/Summary.shtml">http://www.mssl.ucl.ac.uk/www_astro/XMM-OM-SUSS/Summary.shtml</a>. This HEASARC database table contains the sixth release of the XMM-OM SUSS catalog, XMM-SUSS6.1, released by ESA in October 2023, obtained from the XMM-Newton Science Archive (<a href="http://xmm.esac.esa.int/xsa">http://xmm.esac.esa.int/xsa</a>), and ingested into the HEASARC database in October 2023. It is also available at the HEASARC as the gzipped FITS file <a href="https://heasarc.gsfc.nasa.gov/FTP/xmm/data/catalogues/XMM-OM-SUSS6-1.1.fits.gz">https://heasarc.gsfc.nasa.gov/FTP/xmm/data/catalogues/XMM-OM-SUSS6-1.1.fits.gz</a>. This is a service provided by NASA HEASARC . 2012MNRAS.426..903P https://heasarc.gsfc.nasa.gov/W3Browse/all/xmmomsuob.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=xmmomsuob& GET text/xml 180 99999 true 251.774 -86.8324 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=xmmomsuob GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_xmmomsuob&Action=More+Options&Action=Parameter+Search&ConeAdd=1 XMM-NEWTON 0.0166666666666667 Optical UV public xmmomsuob XMM-Newton Optical Monitor SUSS Catalog, v6.1: Observation IDs obsid Unique XMM-Newton Observation Identifier meta.id;obs char nullable name Target Designation meta.id;meta.main char nullable ra Right Ascension of the Nominal XMM-Newton Pointing degree pos.eq.ra;meta.main double nullable dec Declination of the Nominal XMM-Newton Pointing degree pos.eq.dec;meta.main double nullable "time" Start Time of Observation mjd time.start;obs double nullable filters List of Filters Used in Observation instr;instr.filter char nullable number_sources Total Number of Sources Detected by Observation meta.number short nullable u_exposure Exposure in the U Band s time.duration;obs.exposure;em.opt.U int nullable b_exposure Exposure in the B Band s time.duration;obs.exposure;em.opt.B int nullable v_exposure Exposure in the V Band s time.duration;obs.exposure;em.opt.V int nullable uvw2_exposure Exposure in the UVW2 Band s time.duration;obs.exposure;em.UV.200-300nm int nullable uvm2_exposure Exposure in the UVM2 Band s time.duration;obs.exposure;em.UV.200-300nm int nullable uvw1_exposure Exposure in the UVW1 Band s time.duration;obs.exposure;em.UV.200-300nm int nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable lii Galactic Longitude of the Nominal XMM-Newton Pointing degree pos.galactic.lon double nullable v_number_sources Number of Sources in the V Band meta.number;em.opt.V short nullable uvw1_number_sources Number of Sources in the UVW1 Band meta.number;em.UV.200-300nm short nullable uvm2_number_sources Number of Sources in the UVM2 Band meta.number;em.UV.200-300nm short nullable bmag_detlim Detection Limit in the B Band mag obs.param;phot.mag;em.opt.B double nullable uvw1_mag_detlim Detection Limit in the UVW1 Band mag obs.param;phot.mag;em.UV.200-300nm double nullable vmag_detlim Detection Limit in the V Band mag obs.param;phot.mag;em.opt.V double nullable u_number_sources Number of Sources in the U Band meta.number;em.opt.U short nullable xmm_revolution XMM-Newton Revolution Number for Observation meta.code;time;obs short nullable uvm2_mag_detlim Detection Limit in the UVM2 Band mag obs.param;phot.mag;em.UV.200-300nm double nullable end_time End Time of Observation mjd time.end;obs double nullable n_summary Unique Observation Reference Number meta.code short nullable bii Galactic Latitude of the Nominal XMM-Newton Pointing degree pos.galactic.lat double nullable uvw2_number_sources Number of Sources in the UVW2 Band meta.number;em.UV.200-300nm short nullable b_number_sources Number of Sources in the B Band meta.number;em.opt.B short nullable umag_detlim Detection Limit in the U Band mag obs.param;phot.mag;em.opt.U double nullable uvw2_mag_detlim Detection Limit in the UVW2 Band mag obs.param;phot.mag;em.UV.200-300nm double nullable