GCN Circular 32582

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.