GCN Circular 28685
T. Laskar (University of Bath), K. Paterson, J. Rastinejad, C. D. Kilpatrick, and W. Fong (Northwestern) report on behalf of a larger collaboration: "We observed Swift GRB 201014A (Ambrosi et al., GCN 28623) with Binospec on the MMT 6.5-meter telescope at Mount Hopkins, Arizona. We obtained 10x120-sec imaging in the i' and z' bands beginning on 2020 October 17 at 08:55:10 UT and 09:31:56 UT, respectively. Within the XRT position (D'Elia et al., GCN 28626; Perri et al., GCN 28638), we detect the previously reported optical afterglow (Pozanenko et al., GCN 28628; Zhu et al., GCN 28655). Calibrated to SDSS, we measure i' = 23.3 +/- 0.1 mag and z' = 22.8 +/- 0.1 mag at a mid-time of 2.45 days since the burst. Magnitudes are in the AB system and are not corrected for Galactic extinction. We thank Skyler Self and Ben Weiner at the MMT for the rapid scheduling and execution of these observations.''