Actually, Jesus did not ascend to the Father first. Consider what Jesus told Mary after He resurrected:
"Jesus said, "Do not hold on to me, for I have not yet ascended to the Father. Go instead to my brothers and tell them, 'I am ascending to my Father and your Father, to my God and your God.'"
Furthermore, if Jesus wasn't glorified until after He ascended to the Father, then that would mean that at the resurrection believers could not be glorified until we go back to heaven. However, scripture states that we are immortal and glorified at the moment when the resurrection takes place and not after we go to the Father's house.