TITLE: GCN CIRCULAR NUMBER: 7445 SUBJECT: GRB 080319b light curve by Pi-of-the-Sky DATE: 08/03/19 13:38:20 GMT FROM: Grzegorz Wrochna at Soltan Inst.for Nuclear Studies M.Cwiok, W.Dominik, G.Kasprowicz, A.Majcher, A.Majczyna, K.Malek, L.Mankiewicz, M.Molak, K.Nawrocki, L.W.Piotrowski, D.Rybka, M.Sokolowski, J.Uzycki, G.Wrochna, A.F.Zarnecki on behalf of "Pi of the Sky" collaboration http://grb.fuw.edu.pl Following GCN 7439 we give the preliminary light curve of GRB 080319b (IR-cut filter only): start - end frame magnitudo 6:12:33 - 6:12:43 <=96 limit >11.48 6:12:47 - 6:12:57 97 9.83 6:13:01 - 6:13:11 98 5.76 6:13:16 - 6:13:26 99 6.00 6:14:03 - 6:14:13 100 8.26 6:14:17 - 6:14:27 101 8.77 6:14:32 - 6:14:42 102 9.10 6:14:46 - 6:14:56 103 10.27 6:15:27 - 6:14:37 104 10.50 6:15:41 - 6:14:51 105 11.10 6:15:56 - 6:16:06 106 11.21 6:16:40 - 6:16:50 107 11.79 6:16:54 - 6:17:04 108 11.95 More information will be published at http://grb.fuw.edu.pl