NICER observation list: Target ID 570301

Active galactic nuclei (AGN) are powered by accreting supermassive black holes, surrounded by a torus of obscuring material. Recent observations have detected variability in the line of sight column density, giving rise to the 'patchy torus' hypothesis. Other observations, however, fail to find the variability expected from a patchy torus in Sy2 galaxies. Here, we propose to monitor a Sy2 galaxy, with confirmed yearly column density variability, but that shows no variability in timescales of days. We need additional observations on timescales of months to properly constrain the obscurer properties. The number of sources for which a monitoring campaign (i.e. > two observations) has shown variability is only a handful, making the addition of every possible source vital.