TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1770 SUBJECT: GRB021219, optical observation by MASTER DATE: 02/12/19 21:43:26 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, A. Krylov, V. Kornilov, G. Borisov, D. Kuvshinov, M. Kuznetcov S. Patanin - Sternberg Astronomical Institute, Moscow report: We observed with MASTER-system (http://observ.inetcomm.ru/) error box of the burst GRB 021219 (GCN INTEGRAL Circ 1766) at 15:04:07 UT (after 7,5 hours GRB time) between cloudes. There is no OT brighter than 13.7 (With respect to R-USNO stars). The corected eror box (GCN Circ 1769) was in our field. The Images can be seen at URL: http://observ.inetcomm.ru/images/19122002/ Circular may be cited.