Due to technical issues with grid services hosted at SURFsara, it is currently not possible to stage or retrieve data from the LOFAR archive. The situation is dealt with at the highest priority and we hope to return to normal service levels soon. The service level during the Christmas period will be announced here by December 18th. If you have questions or concerns, please contact the RO Helpdesk (https://support.astron.nl/rohelpdesk
). We apologize for the inconvenience.
Welcome to the Lofar Long Term Archive (LTA) web service
This service is the main access point for searching and downloading data from the LOFAR LTA. Please visit the documentation
for a description on how to use this service.
From March 1 2015 onwards, cycle data which have passed the proprietary period will be publicly available.
All metadata in the Archive can be queried anonymously at anytime, but downloading public data can only be done
by registered users (follow the "Create account" link). Non-public data can only be downloaded by project members.
Note: for the first cycles of LOFAR operations, part of the data were ingested in the archive without metadata.
Theses data cannot be found using the standard search parameters, except for the appropriate Observation ID.
When unspecified data are present in a project, this is listed in the "Unspecified" column on the Projects page.
Data can still be requested using the "Project" pulldown in the various Search options.
A list of all LOFAR observing cycles and approved projects can be found here.
For more information on this web service see the Lofar wiki.
This system was developed as part of the Target project. Target was
by Samenwerkingsverband Noord-Nederland (SNN) and the Groningen Municipality. The
project was financially supported by the European Fund for Regional Development
and the Dutch Ministry of Economic Affairs, Agriculture and Innovation (Pieken in de Delta),
the Province of Groningen and the Province of Drenthe.