M.Cwiok,L.W.Piotrowski,M.Zaremba,A.F.Zarnecki (University of Warsaw),
K.Malek,L.Mankiewicz,R.Opiela,M.Siudek,V.Repei (CFT PAN),
G.Kasprowicz (Warsaw University of Technology),
from the "Pi of the Sky" collaboration ( http://grb.fuw.edu.pl ).
The wide field "Pi of the Sky South" telescope, installed in
the private observatory of Alain Maury in San Pedro de Atacama
(http://grb.fuw.edu.pl/pi/index.html#spda_site.htm) observed coordinates
of the GRB 120328B prior, during and after the reported IPN flash
detection. No new source was identified. Following limiting magnitudes
have been set:
t_start - t0 [s] t_exp start (UT) end (UT) 3-sigma limit
-15 10s 06:26:06 06:26:16 11.6
+1 10s 06:26:22 06:26:32 11.6
+16 10s 06:26:37 06:26:47 11.6
-165 20x10s 06:23:36 06:28:32 12.2
+152 20x10s 06:28:53 06:33:54 12.3
where limit is based on the reference star magnitudo in V filter.
We acknowledge support received from Alain Maury at SPdA Observatory.