XMM-Newton Science Archive (XSA)


From 14th March 2019 logging into XSA will only be possible using an ESA Cosmos account.
If you have an ESA Cosmos account but forgot your password (or username) click here.
If you do not have an ESA Cosmos account you can register now here.




Web Interface 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

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

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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.
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.
"Upper Limit Server" for XMM-Newton pointed and slew observations Tool to calculate the maximum count rate and flux which could be produced by a source at the input position in a given image. See the User Guide.

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Download Full XMM-Newton Catalogues

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:
3XMM-DR8 XMM-Newton
Serendipitous Source Catalogue
Download the FITS table
Download the CSV table
Documentation and watchouts
(by the SSC consortium)
Slim version of the
3XMM-DR8 catalogue
Download the FITS table
Download the CSV table
Documentation and watchouts
(by the SSC consortium)
3XMM-DR7s Stacked Catalogue Download the FITS table
Download the stacked sources FITS table
Download the stacked observations FITS table
(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 OM Serendipitous
Ultra-violet Source Survey
Catalogue (XMM-SUSS4.1)
Download the FITS table
Download the FITS table (SLIM version)
XMM-Newton OM Bright Sources
Download the FITS table Documentation
XID program WFC/INT images   Documentation
(Maintained by the SSC consortium)

Alongside the XSA, the EPIC catalogues will also be available at:

Previous versions of the XMM-Newton Serendipitous Source Catalogue can be found here.
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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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  • Since XSAv10.0 the on-the-fly data analysis (RISA) functionality includes a limited number of data analysis possibilities. We invite the community to test it and let us know via the XMM-Newton helpdesk about their results and suggestions for future improvements.

  • Radiation Monitor files available from the XSA archive are being produced regularly but not every revolution has these files available, and there might be delays in the production of the files for the last revolutions.

  • Search on a file with a list of names or positions is currently limited to about 1000 entries. A possible workaround to perform a search on a larger list is to use TOPCAT or CDS Xmatch to cross-match your list with the complete list of XMM-Newton observed positions, which can be downloaded from XSA, from Vizier or from the XSA observations log.

  • 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.

  • Since pipeline version 17.40_20181123_1545 (revolution > 3465), the 3 colour images are produced with the background subtracted. In order to visualize them properly the Scale minimum has to be set to 0. To do this select one by one the three rgb colour files in JS9 File, then under Scale introduce "low clipping limit" = 0.    New

Notes on the XSA releases


XSA version 11.3:    New

The XSA v11.3, released on 06 Aug 2019, includes among other improvements the following:

  • More functionalities for the RGS Spectra Visualizer:
    • Larger sets of spectral lines available to overlay on the RGS spectra
    • Option to select/deselect the spectra to average, after plotting them
  • More functionalities for the JS9 image visualizer:
    • Possibility to visualize, with JS9, the EPIC or OM image products without the need to download them previously. JS9 functionalities (similar to DS9) can then be used.
    • Possibility to overlay EPIC PPS source regions on the images, and to identify them by their coordinates.
  • The INTERACTIVE ANALYSIS Tab now includes a more detailed help about these items and a video tutorial.

XSA version 11.2:

The XSA v11.2, released on 27 May 2019, includes among other improvements the following:

  • More functionalities for the RGS Spectra Visualizer:
    • Option to display 2 sets of spectral lines overlaid on the RGS spectra.
    • Option to plot the flux errors as error bars.
    • Option to use logarithmic scale for X axis.

XSA version 11.1:

The XSA v11.1, released on 25 April 2019, includes among other improvements the following:

  • More functionalities for the RGS Spectra Visualizer:
    • Plot all or the average of the RGS fluxed spectra of selected observations.
    • Select/deselect spectra from the list of obsIDs in the plot.
    • Convert plot units Wavelength/Energy.
    • Introduce redshift to display the spectrum in the rest frame.
    • Define x,y plot ranges.

XSA version 11.0:

The XSA v11.0, released on 14 March 2019, includes a new login system, managed via the ESA Cosmos Authentication System.

  • ESA Cosmos accounts have been created for those PIs that did not have it, and that have current or pending proprietary observations. Their account details have been provided by email.
  • Any other scientist without an existing ESA Cosmos account can register at:

XSA version 10.4:

The XSA v10.4, released on 19 February 2019, includes among other improvements the following:

  • A new RGS Spectra Visualizer that can be launched from the RGS spectrum postcards, clicking on "Data Analysis".
  • The EPIC Background flaring timeseries plots are available for all scheduled and unscheduled EPIC exposures. These plots can be launched by clicking on "Interactive Analysis", on the EPIC images postcards. Since revolution 3400 they can also be displayed in the Exposures Tab, in the Results panel.

XSA version 10.3:

The XSA v10.3, released on 29 November 2018, includes the following:

  • Access to a slightly revised version of the XMM-Newton Optical Monitor (OM) catalogue: XMM-SUSS4.1 (only a few source numbers were changed with respect to XMM-SUSS4).
  • Visualization of the EPIC Background flaring timeseries in the interactive analysis panel, showing the threshold used by the Pipeline for the good time intervals (GTI) selection.The possibility to do on-the-fly filtering of event files by good time intervals (GTI) will not be available until next release.

XSA version 10.2:

The XSA v10.2, released on 22 October 2018, includes the following:

  • access to the new version of the XMM-Newton Optical Monitor (OM) catalogue. The OM Serendipitous Ultraviolet Source Survey Catalogue (XMM-SUSS4) includes the parameters of 8.17 million detections from observations performed until July 2017.
  • the use of the actual EPIC footprint of the observation for searches within the Field of View (previous versions used a circle of 18 arcmin radius). This results in more precise searches.
  • the fast web access, previously only possible for 3XMM-DR8, is now available for all the catalogues.
  • the EPIC background files are being displayed in the Observations results table since revolution 3400. For older observations they will be displayed when the full reprocessing of the XMM-Newton data is performed.

XSA version 10.1:

The XSA v10.1, released on 25 July 2018, includes among other improvements the following implementations:

  • Access to 3XMM-DR7s, the new Stack Catalogue based on 3XMM-DR7.
  • Results of searches of the 3XMM-DR7s Stacked Catalogue allow two display options: it is possible to either display only the stacked sources or to display as well the individual observations with the parameters of the individual detected sources. Stacked Catalogue sources are linked to corresponding 3XMM sources, if already detected.
  • Since XSAv10.1 the observations that have non-standard ODF, or that have PPS products with no science data, are not displayed in the Results panel unless they are specifically selected in the Search panel.
  • The XSA TAP schema has now a more user friendly view of the ADQL query parameters.

XSA version 10.0:

The XSA v10.0, released on 16 May 2018, includes among other improvements the following implementations:

  • Access to the new incremental EPIC (3XMM-DR8) catalogue.
  • Searches on the 3XMM-DR8 catalogue are performed by default with Quality flag < 2 (i.e. sources "good" or "sources with suspect parameters"), and with Detection maximum likelihood (DetML) ≥ 10. These parameters can be changed in the main search panel.
  • The replacement of DS9 by JS9 as image viewer for the Interactive Data analysis functionality RISA. JS9 is integrated in the Web browser and therefore does not require the use of SAMP for the interactive data analysis. Feedback and suggestions for future RISA options (via the XMM-Newton helpdesk) are encouraged and appreciated.
  • Radiation Monitor files can now be searched and downloaded from the XSA interface.

Older XSA versions release notes can be found here

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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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