TITLE: GCN CIRCULAR NUMBER: 19052 SUBJECT: GRB 160220B: Further GROND Observations DATE: 16/02/22 14:04:03 GMT FROM: Philip Wiseman at MPE/Swift P. Wiseman, J. Bolmer and J. Greiner (all MPE Garching) report on behalf of the GROND team: We once again observed the field of GRB 160220B (Swift trigger 674734; Cummings et al., GCN #19029) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPG telescope at ESO La Silla Observatory (Chile). Based on 36.00 min of total exposures in r', at a mid-time of 08:55 UT on 2016-02-22, ~1.9 days after the trigger, we do not detect any fading in the source reported by Wiseman et al. (GCN #19042), placing a limit on any magnitude change to < 0.1 mag in 24 hrs, in agreement with UVOT observations ( De Pasquale et al., GCN #19051). We therefore agree that this source is likely not the afterglow of GRB 160220B.