In this case the waking up is causally related because it seems to be a "waking up from hypersleep" sort of situation. The computer detecting the planet causes the waking.
But I'd suggest that even seeing the planet in the viewer is too soon to start. That leads to a big computer databank infodump. Start with landing on the planet.
Why start with landing on the planet? How about when they encounter the aliens, or someone comes down with galactic plague, or they discover the intriguing ruins hours, days or weeks after they land?
Really, whether or not any of these is a good place to start depends on whether something that advances the character's story or gets the plot bunnies hopping during that scene. Or, does the shown event contributes something
besides simple world building or backstory? Spec fict. writers have a special need that writers of contemporary fiction don't have: they have to establish their setting and premise and give the reader a chance to see the rules of the world in action. A common mistake, however, is to have scenes that do nothing except world build or establish setting and backstory (like pages upon pages of character walking through ship just to show how big and cool it is).
Now show me an opening scene where a character wakes up from hibernation, discovers the rest of the crew is dead in their units, and he/she commences to explore the eerily empty ship, looking for clues about what happened? That might pull me in.