SN 2010jl 20110407.832 14.6V M.Martignoni SN 2010jl 20110407.823 13.9Rc M.Martignoni SN 2010jl 20110412.808 14.5V M.Martignoni #Observer: Massimiliano Martignoni (MMN), Magnago, Milano, Italy #Telescope: Schmidt-Cassegrain 0.25m-f/10.0 #CCD: KAF0402ME