TITLE: GCN CIRCULAR NUMBER: 32582 SUBJECT: GRB 220921A: further MeerLICHT observations DATE: 22/09/25 15:34:07 GMT FROM: Simon de Wet at UCT S. de Wet (UCT), P.J. Groot (Radboud/UCT/SAAO) and D.A.H Buckley (SAAO) report on behalf of the MeerLICHT consortium: The 0.6m wide-field MeerLICHT telescope obtained a total of six 300s exposures in the qugrizq bands in order to monitor the evolving afterglow of GRB 220921A. Observations started at 00:34:09 UT on September 24, approximately 2.56 days post-trigger. We detect the afterglow with a SNR > 5 in the qugri bands and with a SNR of 3.8 in the z band. We report the following magnitudes: u = 20.63 +/- 0.21 g = 20.52 +/- 0.10 q = 20.23 +/- 0.04 r = 20.16 +/- 0.10 i = 20.24 +/- 0.14 z = 19.91 +/- 0.28 We note that the source is continuing to fade. MeerLICHT is built and run by a consortium consisting of Radboud University, University of Cape Town, the South African Astronomical Observatory, the University of Oxford, the University of Manchester and the University of Amsterdam.