Abstract
On December 26, 2016, starting at 14:20 (UTC), we observed a large fraction
of the localization error range of the Advanced LIGO trigger G211117
(GW151226) with the ILT (International Low-Frequency Array [LOFAR]
Telescope). This is an additional set of LOFAR observations of these fields
at 1 year following the detection. The observations were obtained with the
High-Band Antennas (HBA) at a centre frequency of 145 MHz (bandwidth
15.6 MHz). We used 6 simultaneous beams on the sky, where each
beam has a field of view of approximately 12 deg^2 (beam FWHM 3.9
degrees)
