TITLE: GCN CIRCULAR NUMBER: 35347 SUBJECT: GRB 231215C: MASTER OT detection DATE: 23/12/15 11:42:53 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru> V.Lipunov, P.Balanutsa (Lomonosov MSU), O.Gress, N.Budnev (ISU), E.Gorbovskoy, D.Svinkin (Ioffe Institute, Konus-Wind), Ya.Kechin, K.Zhirkov, A.Kuznetsov, D.Vlasenko, P.Balanutsa, Yu.Tselik, N.Tiurina, I.Gorbunov, V.Vladimirov,D.Zimnukhov, V.Senik, A.Yudin,A.Chasovnikov, D.Cheryasov, A.Sosnovskij (Lomonosov MSU,SAI,PhysicsDepartment), O.A. Gres, N.M. Budnev (Irkutsk State University, API), C.Francile. F. Podesta, R.Podesta (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) MASTER Global robotic net (http://observ.pereplet.ru Lipunov et al.,2010,Advances in Astronomy,2010,30L) started Swift GRB 231215C ( D'Avanzo et al GCN 35343, Evans et al. GCN35345) at 2023-12-15 10:33:29UT (Lipunov et al. GCN 35346) There is MASTER OT J003857.44+573850 since first image with mOT=16.5 at one of first image, with classical GRB light curve Observations and reduction will be continued View this GCN Circular online at https://gcn.nasa.gov/circulars/35347. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...