TITLE: GCN CIRCULAR NUMBER: 2774 SUBJECT: GRB041006, submillimetre observations DATE: 04/10/06 23:32:47 GMT FROM: Vicki Barnard at Joint Astro.Centre,Hawaii V. Barnard, G. Schieven, R. Tilanus, J. Cox (all Joint Astronomy Centre), J-F. Lestrade (Observatoire de Paris) report on behalf of the JCMT afterglow collaboration: We observed the afterglow position of GRB 041006 reported in GCN 2765 with SCUBA on the James Clerk Maxwell Telescope on Mauna Kea, beginning at 14:29:50 UT on 06/10/04. In reasonable weather we obtained a flux density at 850 microns of (2.93 +- 5.76) mJy. We were unable to observe further as the source set. Further observations are planned for 07/10/04 UT.