02.09.2010
GRB 100902A: MASTER prompt optical observations GCN Circ 11185 | M GCN Circ 11182 | 104 s after BAT trigger. m_lim = 18.0.
GRB 100902A: MASTER prompt optical observations GCN Circ 11185 | M GCN Circ 11182 | 104 s after BAT trigger. m_lim = 18.0.