TITLE: GCN CIRCULAR NUMBER: 27431 SUBJECT: GRB 200324A: Tautenburg observations DATE: 20/03/24 22:50:57 GMT FROM: Sylvio Klose at TLS Tautenburg B. Stecklum, S. Klose, A. Nicuesa Guelbenzu, S. Melnikov, and F. Ludwig (all Tautenburg) report: We observed the field of GRB 200324A (Dichiara et al., GCN 27428) with the Tautenburg 1.34m Schmidt telescope equipped with the TAUKAM 6k x 6k CCD camera and the wide V-band filter (VB). The transmission curve of this filter closely follows the Gaia GBP filter. Observations started at 20:08:15 UT and consisted of 5x5 min exposures. Inside the enhanced XRT error circle (Beardmore et al., GCN 27430) we do not find any optical transient. Based on Gaia DR2 stars in the field, we provide an upper limit of VB > 22.0 mag (Vega system; 3.5 hr after the burst). We note that only ~5 arcsec north of the center of the XRT error circle lies the faint SDSS-DR8 source J145041.56+355635.6, possibly the GRB host galaxy.