GCN Circular 2868
E. Rykoff (U. Michigan) and R. Quimby (U. Texas) report on behalf of the ROTSE collaboration: ROTSE-IIIb, located at McDonald Observatory, Texas, responded automatically to INTEGRAL trigger #2073, GRB041219. Our first 5-s exposure started at 01:44:11.6 UT, 74 seconds after the start of the GRB, and 6 seconds after the trigger, and during the GRB itself (GCN 2866). Our unfiltered images were calibrated relative to USNO A2.0. Comparison to DSS reveals no new sources to a limiting magnitude of around 17.2. Due to the low galactic latitude, field crowding is a significant issue. Imaging is ongoing.