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GCN Circular 7439

Subject
GRB 080319b prompt optical observation by Pi-of-the-Sky
Date
2008-03-19T11:55:07Z (16 years ago)
From
Grzegorz Wrochna at Soltan Inst.for Nuclear Studies <wrochna@fuw.edu.pl>
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

"Pi of the Sky" apparatus located at Las Campanas Observatory
imaged the region of GRB 080319b (Swift triger 306757 at 06:12:49 UT)
before, during and after the GRB with 10s exposures (IR-cut filter only).
We observe optical emission at the position given by Swift XRT.
   start -   end     comment
6:12:33 - 6:12:43   not visible (>12 mag)
6:12:47 - 6:12:57   visible (~10 mag)
6:13:01 - 6:13:11   max. brightness (~6 mag)

Full light curve fill be published later.
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