Tracking the motion of a shock along a channel in the low solar corona J. Rigney, P. T. Gallagher, G. Ramsay, J. G. Doyle, D. M. Long, O. Stepanyuk and K. Kozarev A&A, 684 (2024) L7 Published online: 08 April 2024 DOI: 10.1051/0004-6361/202348452