Auto Entity Center

/execute @e[c=1,score_CenterMe_min=1,score_CenterMe=1] ~ ~ ~ /summon ItemFrame ~ ~ ~
/execute @e[c=1,score_CenterMe_min=1,score_CenterMe=1] ~ ~ ~ /scoreboard players set @e[type=ItemFrame,c=1] CenterMe 2
/tp @e[c=1,score_CenterMe_min=1,score_CenterMe=1] @e[c=1,type=ItemFrame,score_CenterMe_min=2,score_CenterMe=2]
/tp @e[c=1,score_CenterMe_min=1,score_CenterMe=1] ~ ~ ~0.469
/kill @e[c=1,type=ItemFrame,score_CenterMe_min=2,score_CenterMe=2]
/scoreboard players reset @e[score_CenterMe_min=1] CenterMe