TITLE: GCN CIRCULAR NUMBER: 15965 SUBJECT: GRB 140302A: GROND confirmation of the afterglow DATE: 14/03/12 14:08:14 GMT FROM: Jonny Elliott at MPE/GROND J. Elliott (MPE Garching), S. Schmidl (TLS Tautenburg), J.Greiner, J. F. Graham, M. Tanga (all MPE Garching) report on behalf of the GROND team: We re-observed the field of GRB 140302A (Swift trigger 589685; Pagani et al., GCN #15901) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at La Silla Observatory (Chile). Observations started at 07:18 UT on 4th March 2014, 2 days after the GRB trigger. They were performed at an average seeing of 1.1" and at an average airmass of 1.3. We no longer detect the source noted in our previous observations (Elliott et al.; GCN #15903) that had a magnitude of r' = 23.7 +/- 0.2 mag. For a total exposure of 1.2 hours we obtain an upper limit (AB) of r' > 25.2 mag and confirm this as the afterglow of GRB 140302A. The given limit is derived based on calibrating the image against GROND zeropoints and is not corrected for the Galactic foreground extinction corresponding to a reddening of E(B-V)= 0.52 mag in the direction of the burst (Schlegel et al. 1998).