TITLE: GCN CIRCULAR NUMBER: 11468 SUBJECT: GRB 101219A: Further Gemini-South Imaging DATE: 10/12/19 11:52:37 GMT FROM: S. Bradley Cenko at Caltech S. B. Cenko (UC Berkeley), A. J. Levan (Warwick), R. Chornock, E. Berger (Harvard), D. A. Perley, J. S. Bloom (UC Berkeley), and N. Tanvir (Leicester) report on behalf of a larger collaboration: We have obtained a second series of i'-band imaging (Perley et al., GCN 11464) of the field of the short-hard GRB101219A (Gelbord et al., GCN 11461) with the Gemini Multi-Object Spectrograph mounted on the 8-m Gemini South telescope. Observations consisted of 12 x 180 s exposures beginning at 6:55 UT (~ 4.2 hours after the burst trigger). Digital subtraction of the two epochs reveals no transient emission within or around the XRT error circle. Using several common SDSS objects for calibration, we place an upper limit of i' > 24.5 mag. Similarly, aperture photometry reveals the source mentioned by Perley et al. (GCN 11464), which is clearly extended in our images, remains approximately constant over this time period, with an i-band magnitude of ~ 23.5. We further note that no sources are present in any filter in the SDSS pre-explosion imaging of the field in the immediate environment of the XRT error circle. The limits, however, would not be sufficient to detect the extended source mentioned above.