TITLE: GCN CIRCULAR NUMBER: 6139 SUBJECT: GRB 070224: MASTER-VWF-Kislovodsk observations DATE: 07/02/24 21:43:27 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, N.Shatskiy, E.Gorbovskoy, A.Belinski, D.Kuvshinov, N.Tyurina, P.Gritsyk Sternberg Astronomical Institute, Moscow Union 'Optic' A. Tlatov, I.Golubov Kislovodsk Solar Station of the Pulkovo observatory MASTER Very Wide Field Camera located at Kislovodsk Solar Station (http://observ.pereplet.ru, D=70 mm, 420 square degrees, 11 Mpixel's CCD) has moved to the Swift-BAT trigger 261880 and it has taken a series of 5s exposures starting 2 s after notice arrivel time at 20:29:38.285 UT under good weather condition and waxing moon. We note that the GBR position (J. L. Racusin et al. GCN Circ No. 6137) was at 4 degrees outside of the our field of view. We note that the VWF camera continuously takes frames during the night. These unfiltered images are calibrated relative to USNO A2.0 (R). There is no OT was found inside Swift error box. T-Tgrb Mean Time Limit Coadd? 29s 29.5s 11.0 no 29s 59 s 12.0 12 The message can be cited. mailto: lipunov@sai.msu.ru