TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2885 SUBJECT: GRB041219: Optical Afterglow Detection DATE: 04/12/20 09:29:25 GMT FROM: S. Bradley Cenko at Caltech S. Bradley Cenko reports on behalf of the Caltech-NRAO-Carnegie GRB Collaboration: "We have imaged the position of the NIR afterglow of GRB041219 (Blake and Bloom, GCN 2870) with the robotic Palomar 60-inch telescope. We detect the presence of a faint source at this position, with a z-band magnitude of 21.0 +/- 0.3. The mean epoch of our observations is approximately 04:57 UT, December 20. Further observations are planned."