XMM-Newton Science Archive (XSA)


This page collects data access links, documentation and release notes for the XMM-Newton Science Archive within the ESAC Science Data Centre and other sites of the XMM-Newton consortium.




Access to XMM-Newton data and source catalogues

Search the XMM-Newton Science Archive (XSA)

Direct access to the XSA data via URL or AIO (Archive InterOperability System):
Command line and URL access to the XSA data

Astroquery and TAP (Table Access Protocol) access to the XSA Database:
Astroquery and TAP queries to the XSA Database

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Download Full XMM-Newton Catalogues and datasets

Alongside all XMM-Newton scientific data products and observation-related information, high-level catalogues and
a multiwavelength datasets can be accessed through the XSA or downloaded from the links below:
4XMM-DR13 XMM-Newton
Serendipitous Source Catalogue
Download the FITS table
Download the CSV table
Documentation and watchouts
(by the SSC consortium)
Slim version of the
4XMM-DR13 catalogue
Download the FITS table
Download the CSV table
Documentation and watchouts
(by the SSC consortium)
Stacked Catalogue
Download the FITS table
Download the stacked sources FITS table
Download the stacked observations FITS table
(Maintained by the SSC consortium)
XMM-DR13s SEDs New Download all SED FITS files Documentation:
Webb et al. 2020A&A...641A.136W
(sect 9.1 and Table 4)
4XMM-DR9 Multi-Object Coverage
maps (MOC) Fits Files
Download MOCs for individual observations
Download the whole 4XMM-DR9 field MOC
(Maintained by the SSC consortium)
The XMM-Newton Slew Survey
XMMSL2 Source Catalogue
Download the FITS table (FULL)
Download the FITS table (CLEAN)
XMM-Newton Serendipitous
UV Source Survey Catalogue


Download the FITS table
Download the FITS table (SLIM version)
Documentation and watchouts
XMM-Newton OM Bright Sources
Download the FITS table Documentation
Spectral Fit Catalogues 3XMM-DR7 spectral fit catalogue XMMFITCAT
3XMM-DR6 photo Z catalogue XMMPZCAT
3XMM-DR6 spectral fit Z catalogue XMMFITCAT-Z
(Carried out by an ESA-PRODEX
funded collaboration between
European institutes and the SSC)

Alongside the XSA, the catalogues are also distributed through:

Previous versions of the XMM-Newton Serendipitous Source Catalogue
and of the XMM-Newton Serendipitous Stack Source Catalogue can be found here.
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The Upper Limits Database Upper limits DB from all public pointed and slew 0bservations, searchable from the XSA interface
RISA on-the-fly data processing & analysis Service for on-the-fly processing of XMM-Newton data with SAS (see Technical Note and Interactive Data Analysis help) without the need of downloading data and software.
HILIGT multimission upper limit server for XMM-Newton and other high energy missions Tool to provide for XMM-Newton the EPIC source parameters, if existing, or otherwise an upper limit value, and to provide as well data from other high-energy missions. See the User Guide.
PFLIX Portable Flix version to estimate flux upper limits
from EPIC XMM-Newton images directly extracted from the XSA archive
Pflix is a portable version of the FLIX web-service hosted at Leicester University. Pflix estimates flux upper-limits for positions in EPIC pointed fields. It can be compiled with gfortran to run on different operating systems (Linux, MacOS, or Windows). It gets the data files directly from the ESAC XSA servers, so has access to all the currently public observations (see https://www.ledas.ac.uk/flix/pflix_description.html)
FLIX Upper limit and image cut-out
from XMM-Newton Serendipitous Source Catalogue images
Tool provided by the XMM-Newton Survey Science Centre (SSC), available via LEDAS.
IRAP Catalogue server Cross-correlation products of potential 4XMM catalogue sources counterparts, and other associated products and tools.
XID X-ray follow-up and Identification program Optical follow-up of X-ray sources (Maintained by the SSC consortium)
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XMM-Newton Science Data Products Guide A short guide to XMM-Newton science data products.
Data Quality Process for XMM-Newton Data A description of the "Data Quality Process" applied to XMM-Newton Data and the "Data Quality Report" available for each observation.
Radiation Monitor Data Files A description of the Radiation Monitor and the data files produced, which can be downloaded from the XSA interface.

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  • The database of Upper Limits from Pointed and Slew observations has been built for regions free of pointed and slew PPS sources. If there is a source detected by the Pipeline or in the catalogues, no upper limit is provided, it is recommended to click on the appropriate boxes such that sources are found and displayed in the results tabs.

  • The 4XMM-DR13 SED plots show the spectral energy density (ergs/s/cm2/micron) times the wavelength (in microns) computed at the central wavelength of the bands, so as to be consistent with what is plotted at other (longer) wavelength bands. This may be slightly different from the integral flux computed in the energy (frequency) band, displayed for the 4XMM-DR11 catalogue. Converting integral fluxes to flux densities at central wavelengths was done assuming that f(E) is constant in the band. Note that fluxes for the unique sources across all observations, SC_EP_flux, were used, instead of the per observation source fluxes EP_flux.

  • The observations performed in mosaic mode have a global Observation Data File (ODF) which is also split into 'pseudo ODFs' (see Chapter 2 of the Data Files Handbook).
    The ObsID of all 'pseudo ODFs' belonging to a mosaic have the first 8 digits in common (e.g. 06730001). Split 'pseudo ODFs' can be recognised because the last two digits of their ObsIDs are not 01 but 31, 32, 33, etc. (e.g. 0673000131, 0673000132 etc). Note that the data (i.e. the X-ray events) of the 'pseudo ODF' subsets has been extracted from the global ODF (i.e. the same data for the sky area covered in the pseudo ODF). Pseudo ODF subsets should therefore never be combined or merged with the global ODF.

  • JS9 display functionalities can be used for on-the-fly visualization of the PPS files in the list "Open FITS file with JS9". For "EPIC Events" it is convenient to bin the image by selecting View -> Bin/Filter/Section and typing for example bin=32 in the pop-up window. Then click "Run", and "Load full image" to view the entire "EPIC Events" image.   

  • To overlay (blend) or blink more than one image loaded in JS9, say an EPIC combined image and an OM image, you can first sync the display commands using:
          File -> sync ... -> sync images ... -> all images
    and then re-project the OM image to the EPIC image using:
          WCS -> wcs reproject -> all images in this display.
    Then, for example, blink the EPIC and OM images with:
          View -> Blinking

    Note: if you zoom or pan any of the images, you need to deselect and select again the images in the Blinking form, for the commands to apply to all loaded images.  

Older (valid) watchouts can be found here.

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Recent XSA Release Notes


Click here for an overview of historical XSA release notes.

XSA version 16.2.1:   New

The XSA v16.2.1, released on 23 January 2024, includes the following:

  • update tests that were using database authentication
  • update TAP for the tomcat9 upgrade
  • update release candidate generation for new naming convention

XSA version 16.2:

The XSA v16.2, released on 17 October 2023, includes the following:

  • Ingestion of the XMM-OM-SUSS-6.1
  • Correction of a wrong link to astroquery documentation

XSA version 16.1:

The XSA v16.1, released on 16 August 2023, includes the following:

XSA version 16.0:

The XSA v16.0, released on 12 June 2023, includes the following:

  • Access to the new incremental EPIC (4XMM-DR13) catalogue
  • Access to the newly generated EPIC (4XMM-DR13s) stacked catalogue

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Questions, Comments

If you have questions about the XMM-Newton Science Archive please contact us via the XMM-Newton Helpdesk

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