GCN Circular 15838
S.B. Cenko (NASA-GSFC), V. Toy (UMD), A. Kutyrev (NASA-GSFC), J. Capone (UMD), E. Troja (NASA-GSFC), A. Cucchiara (NASA-GSFC), S. Veilleux (UMD), and S. Gezari (UMD) report on behalf of a larger collaboration: We imaged the location of the Swift GRB140215A (Markwardt et al., GCN 15837) with the Large Monolithic Imager mounted on the 4.3m Discovery Channel Telescope. Observations began at 4:09:50 UT on 15 February 2014, ~ 2.7 min after the Swift BAT trigger time, and were taken under sub-optimal conditions (moderate cloud cover and bright moon). We detect the bright optical afterglow in individual exposures beginning at this time. Using several nearby point sources from USNO-B1 reference, we measure a magnitude of r' ~ 13.5 mag in our first exposure. Multi-color observations are ongoing. We thank the entire staff of the Discovery Channel Telescope for assistance with these observations.