TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2895 SUBJECT: GRB 041219: Second Epoch WSRT Radio Observations DATE: 04/12/22 16:41:00 GMT FROM: Alexander van der Horst at U of Amsterdam A.J. van der Horst (University of Amsterdam), E. Rol (University of Leicester) and R. Strom (ASTRON, University of Amsterdam) report on behalf of a larger collaboration: "We reobserved the INTEGRAL GRB 041219 (GCN 2866) at 4.9 GHz with the Westerbork Synthesis Radio Telescope on December 21 from 14.45 to 23.55 UT, i.e. 2.54 - 2.93 days after the burst. Compared to our previous measurement (GCN 2894), the average flux density has increased to 349 +/- 22 microJy. Assuming a power law behaviour, the average temporal index at 4.9 GHz between this and our previous observation is alpha ~ 1.2. Further observations are planned." This message may be cited.