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Until the end of 2006, all S2 tape-based recordings on the LBA were correlated at the ATNF LBA
hardware correlator. The S2 tape system was decommissioned in January 2007 and all recordings on the LBA
are now on disks, using the LBADR recording system.
Details of the S2 correlator are included here for reference when examining archival LBA data.
All disk-based recorded LBA data is now corrrelated on the DiFX software correlator developed at the
Swinburne University of Technology. The major correlator facility for the LBA National facility
operations is run on the Swimburne supercomputer cluster, under a service agreement with the ATNF.
Details of DiFX are published in Deller, Tingay, Bailes and West 2007, PASP, 119,318.