Not sure...... First I am not sure if that rock was a meteor, the rock lacked the fire from entering the atmosphere. Could have been In'youton.
Also, Susanoo produces a change in the users chakra and has been shown to amplify jutsu such as Sasuke's enton. It is possible that techniques related to the Uchiha doujutsu become amplified when used through Susanoo.
Also, Susanoo produces a change in the users chakra and has been shown to amplify jutsu such as Sasuke's enton. It is possible that techniques related to the Uchiha doujutsu become amplified when used through Susanoo.