TITLE: GCN GRB OBSERVATION REPORT NUMBER: 183 SUBJECT: GRB 981226 radio observations DATE: 98/12/30 19:38:44 GMT FROM: Titus Galama at U.Amsterdam T.J. Galama, P. Vreeswijk (U. of Amsterdam), J. van Paradijs (U. of Amsterdam and U. of Alabama in Huntsville), C. Kouveliotou (USRA/MSFC), R. Strom (NFRA and U. of Amsterdam), G. de Bruyn (NFRA and U. of Groningen) report: "We have observed the location of the X-ray source (GCN #178) in the error box of GRB 981226 (GCN #174) with the Westerbork Radio Synthesis Telescope (WSRT). We observed for 6.4 hours at 4.88 GHz on Dec 29.70 UT, 1998. We find no sources at the location of the X-ray source down to 360 microJy (4 sigma). In particular, we find no radio counterparts to the optical objects noted by Galama et al. (GCN #172), Castro- Tirado et al. (GCN #173) and Wozniak et al. (GCN #177). These results are consistent with those by Frail et al. (GCN #180)." This message is citeable.