GCN Circular 2970
M.Cwiok, K.Krupska, K.Kwiecinska, L.Mankiewicz, K.Nawrocki, B.Pilecki, L.W.Piotrowski, G.Pojmanski, M.Sokolowski, D.Szczygiel, G.Wrochna, on behalf of "Pi of the Sky / ASAS" collaboration http://grb.fuw.edu.pl The GRB 050123 (GCN 2966) error box was observed by "Pi of the Sky" apparatus at Las Campanas Observatory at 8:35 UT, i.e. 1h 48min before the GRB. 3 exposures, 10s each, have been taken by 2 cameras. No new object has been found within the HETE error box. The limiting magnitude on 3 coadded frames is 12m (unfiltered).