LEDAS provides an on-line astronomical database service and access to archive data from high energy astrophysics missions. In particular, LEDAS provides the primary means of access for the UK astronomical community to the ROSAT Public Data Archive, the ASCA Public Data Archive and the Ginga Products Archive.

NEW USERS: For an overview of the services provided by LEDAS, user guides, contact details and further help, please see the INFO section of the LEDAS site. To go directly to any of our mission archives, software distribution sites or other services, click on the relevant link in the navigation bar.

LEDAS News: Service Announcements: Everything is ok. No maintenence work scheduled. Help with LEDAS If you are having problems with this web site or with any other aspect of LEDAS, please contact the LEDAS Helpdesk at ledas-help@star.le.ac.uk .

LEDAS Services: LEDAS hosts a mirror of the XMM Serendipitous Source Catalogues 1XMM & 2XMMi X-RAY DATA ARCHIVES: Online data archives for ROSAT, Ginga, ASCA ,Chandra and XMM. CATALOGUES: 3000+ astronomical catalogues searchable via ARNIE5, BLASTA and VIZIER. IMAGES: Sky images from Digitised Sky Survey. Enhanced version of service supports DSS-II. BIBLIOGRAPHY: Search references from SIMBAD bibliography. SOFTWARE: Download high-energy data reduction/analysis software. NEWS: Astronomers Telegram mirror site LEDAS Site Search Search WWW Search LEDAS

LEDAS is located in the X-ray and Observational Astronomy group of the Department of Physics and Astronomy at the University of Leicester, UK.