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Table 3

Current LOFAR observing modes.

Type Mode Outputs Description

Interferometric Correlated Visibilities Arbitrary number of stations, 8 beams per station, full Stokes
Beam-formed Incoherent stokes BF data file Incoherent summation, arbitrary stations, 8 station beams, full Stokes
Coherent stokes BF data file Coherent summation, Superterp only, 20 full-resolution beams, full Stokes
Complex voltage BF data file Coherent summation, Superterp only, bypasses 2nd PPF, raw voltage output
Station level BF data file Arbitrary stations, individual pointing and frequency settings per station
8 station beams, Stokes I
Direct storage Raw voltage TBB data file Station level triggering of TBB dumps, direct storage to CEP cluster

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