TITLE: GCN CIRCULAR NUMBER: 32943 SUBJECT: GRB 221115B : MeerLICHT upper limits DATE: 22/11/17 11:07:15 GMT FROM: Simon de Wet at UCT S. de Wet (UCT), P.J. Groot (Radboud/UCT/SAAO) report on behalf of the MeerLICHT consortium: We observed the Swift/BAT-GUANO localisation of GRB 221115B (DeLaunay et al., GCN 32941) with the 0.6m wide-field MeerLICHT optical telescope situated in Sutherland, South Africa, obtaining 2x300s observations in the q-band (roughly g+r) fully encompassing the 3' error box. Observations began at 21:21:30 UT on 2022 November 16, 1.48 days post-trigger. Employing our transient detection pipeline along with an archival reference image, we detect no new transients within the GUANO error box down to a 5-sigma transient limiting magnitude of q > 20.80. Our new images had full-frame 5-sigma limiting magnitudes of q = 22.10 and q = 22.18, while our archival reference image had a limiting magnitude of q = 21.10. All magnitudes are in the AB system. MeerLICHT is built and run by a consortium consisting of Radboud University, the University of Cape Town, the South African Astronomical Observatory, the University of Oxford, the University of Manchester and the University of Amsterdam.